1. The utility model provides a transmission shaft and back wheel separator which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the power assembly (100) comprises a driving piece (101), a transmission shaft (102) and a back wheel (103), wherein the transmission shaft (102) is connected with the driving piece (101), and the back wheel (103) is connected with the transmission shaft (102) in a key mode;

the disassembling assembly (200) comprises a supporting steel plate (201) and a jack (202), wherein one end of the jack (202) is in contact with the supporting steel plate (201) and the other end of the jack is in contact with the transmission shaft (102);

the connecting piece (300) comprises an intermediate piece (400), a first connecting group (301) and a second connecting group (302), wherein the first connecting group (301) connects the intermediate piece (400) and the backrest wheels (103), and the second connecting group (302) connects the intermediate piece (400) and the supporting steel plate (201).

2. The drive shaft and back-wheel separation device of claim 1, wherein: the first connection group (301) comprises a first bolt (301a) and a first nut (301b), the first nut (301b) being arranged in the intermediate piece (400);

the backrest wheel (103) is provided with a first hole (103a), and the first bolt (301a) penetrates through the first hole (103a) to be connected with the first nut (301 b).

3. The drive shaft-to-back wheel separating apparatus according to claim 1 or 2, wherein: the second connection set (302) comprises a second bolt (302a) and a second nut (302b), the second nut (302b) being arranged in the intermediate piece (400); (ii) a

The supporting steel plate (201) is provided with a second hole (201a), and the first bolt and the second bolt (302a) penetrate through the second hole (201a) to be connected with the second nut (302 b).

4. The drive shaft and back-wheel separation device of claim 3, wherein: the bottom end of the jack (202) is in contact with the supporting steel plate (201), and the rod end of the jack is in contact with the end part of the transmission shaft (102).

5. The drive shaft and back-wheel separation device of claim 4, wherein: and a cushion block is arranged between the bottom end of the jack (202) and the supporting steel plate (201).

6. The drive shaft and back-wheel separation device of claim 5, wherein: a first accommodating groove (401) and a second accommodating groove (402) are formed in the middle piece (400), the first accommodating groove (401) and the second accommodating groove (402) are respectively formed in two ends of the connecting piece (100), the first nut (301b) is arranged in the first accommodating groove (01), and the second nut (302a) is arranged in the second accommodating groove (402).

7. The device for separating the transmission shaft from the backrest wheel as claimed in any one of claims 4 to 6, wherein: the first accommodating groove (401) comprises an outer side groove (401a) and an inner side groove (401b), the cross section of the outer side groove (401a) is a regular hexagon, the cross section of the inner side groove (401b) is a circle, and the cross-sectional area of the inner side groove (401b) is larger than that of the outer side groove (401 a).

8. The drive shaft and back-wheel separation device of claim 7, wherein: a circular plate (401c) is arranged in the inner side groove (401b), and one side of the circular plate (401c) is connected with the bottom of the inner side groove (401b) through a spring (401 d).

9. The drive shaft and back-wheel separation device of claim 8, wherein: a slotted hole (401e) is formed in the center of the circular plate (401c), the slotted hole (401e) is a regular hexagon, and the slotted hole (401e) is matched with the outer side groove (401a) in size;

the slot (401e) and the outer slot (401a) are arranged in a staggered manner.

10. The drive shaft-to-back wheel separating apparatus according to claim 8 or 9, wherein: a first slot (401f) is arranged in the outer side slot (401a), a first opening (401g) is arranged on the middle piece (400), and the first opening (401g) is arranged corresponding to and communicated with the first slot (401 f);

the cross section of the second accommodating groove (402) is a regular hexagon, a second slot (402a) is arranged in the second accommodating groove (402), a second opening (402b) is further arranged on the intermediate piece (400), and the second opening (402b) and the second slot (402a) are correspondingly arranged and communicated.

Background

When the damaged bearing needs to be detached from the pump shaft, the three-jaw puller is usually used for detaching, the three-jaw puller usually consists of a rotating handle, a screw rod and a pulling jaw, when the three-jaw puller is used, the head of the screw rod is positioned in a tip hole at the shaft end, the pulling jaw is hooked on an outer ring of the bearing, and the rotating handle is rotated to drive the pulling jaw to drive the bearing to move outwards along the axial direction, so that the bearing can be detached.

When the back wheel on the transmission shaft is disassembled, a three-jaw puller is also used, but the back wheel is generally large in size, three pulling jaws cannot be hooked well when being in contact with the back wheel, 3-4 persons are usually required to cooperate, and the back wheel can be disassembled by applying uniform force. If the operation is improper, the pulling claw can be damaged, and the personnel can be injured. For example, when the three claws are asymmetric, the back rest wheel is disassembled, which may cause the pump shaft to be pulled or auxiliary personnel to be injured. Therefore, it is not suitable to use a three-jaw puller to disassemble the pump shaft back wheel.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments, and in this section as well as in the abstract and the title of the invention of this application some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made keeping in mind the above problems occurring in the prior art and/or the problems occurring in the prior art.

Therefore, the technical problem to be solved by the invention is that the traditional three-jaw puller dismounting mode of the transmission shaft and the backrest wheel is complicated and labor-consuming in operation and has safety risk.

In order to solve the technical problems, the invention provides the following technical scheme: a device for separating a transmission shaft from a backrest wheel comprises,

the power assembly comprises power, a transmission shaft and a back wheel, the transmission shaft is connected with the power, and the back wheel is connected with the transmission shaft in a key manner;

the disassembling assembly comprises a supporting steel plate and a jack, wherein one end of the jack is in contact with the supporting steel plate, and the other end of the jack is in contact with the transmission shaft;

the connecting piece is connected the group including middleware, first connection group and second, first connection group connects middleware and back wheel, the second is connected the group and is connected middleware and supporting steel plate.

As a preferable aspect of the transmission shaft and back-wheel separating device of the present invention, wherein: the first connecting set comprises a first bolt and a first nut, and the first nut is arranged in the middle piece;

the backrest wheel is provided with a first hole, and the first bolt penetrates through the first hole to be connected with the first nut.

As a preferable aspect of the transmission shaft and back-wheel separating device of the present invention, wherein: the second connecting set comprises a second bolt and a second nut, and the second nut is arranged in the middle piece; (ii) a

And a second hole is formed in the supporting steel plate, and the first bolt and the second bolt penetrate through the second hole to be connected with the second nut.

As a preferable aspect of the transmission shaft and back-wheel separating device of the present invention, wherein: the bottom end of the jack is in contact with the supporting steel plate, and the rod end of the jack is in contact with the end part of the transmission shaft.

As a preferable aspect of the transmission shaft and back-wheel separating device of the present invention, wherein: and a cushion block is arranged between the bottom end of the jack and the supporting steel plate.

As a preferable aspect of the transmission shaft and back-wheel separating device of the present invention, wherein: a first accommodating groove and a second accommodating groove are formed in the intermediate piece, the first accommodating groove and the second accommodating groove are respectively formed in two ends of the connecting piece, the first nut is arranged in the first accommodating groove, and the second nut is arranged in the second accommodating groove;

as a preferable aspect of the transmission shaft and back-wheel separating device of the present invention, wherein: the first containing groove comprises an outer side groove and an inner side groove, the cross section of the outer side groove is in a regular hexagon shape, the cross section of the inner side groove is in a circular shape, and the area of the cross section of the inner side groove is larger than that of the outer side groove.

As a preferable aspect of the transmission shaft and back-wheel separating device of the present invention, wherein: and a circular plate is arranged in the inner side groove, and one side of the circular plate is connected with the bottom of the inner side groove through a spring.

As a preferable aspect of the transmission shaft and back-wheel separating device of the present invention, wherein: a slotted hole is formed in the center of the circular plate, the slotted hole is in a regular hexagon shape, and the slotted hole is matched with the outer side groove in size;

the slot holes and the outer side slots are arranged in a staggered mode.

As a preferable aspect of the transmission shaft and back-wheel separating device of the present invention, wherein: a first slot is arranged in the outer slot, a first opening is arranged on the intermediate piece, and the first opening and the first slot are correspondingly arranged and communicated;

the cross section of the second accommodating groove is a regular hexagon, a second slot is arranged in the second accommodating groove, a second opening is further arranged on the intermediate piece, and the second opening and the second slot are correspondingly arranged and communicated.

The invention has the beneficial effects that: under the condition that the distance between the backrest wheel and the supporting steel plate is not changed, the backrest wheel can be separated from the shaft along with the lengthening of the jack piston; the three-jaw puller has the advantages that the phenomenon that personnel are injured due to improper use of the three-jaw puller is avoided, time is saved for the disassembly work of the backrest wheel, the backrest wheel can be disassembled by a single person, manpower is saved, a special tool is firm and reliable, strength is balanced, and equipment damage cannot be caused.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is a schematic structural diagram of an overall assembly of a transmission shaft and a backrest wheel separation device according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view illustrating a connecting member of a transmission shaft and a back-wheel separating device according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a first slot in a transmission shaft and a backrest wheel separation device according to an embodiment of the present invention;

fig. 4 is a schematic view of an internal structure of an intermediate member in a transmission shaft and back-wheel separating device according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration when describing the embodiments of the present invention, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 4, the present embodiment provides a transmission shaft and back wheel separating device, including,

the power assembly 100 comprises a driving piece 101, a transmission shaft 102 and a back wheel 103, wherein the transmission shaft 102 is connected with the driving piece 101, and the back wheel 103 is connected with the transmission shaft 102 in a key manner;

the disassembling assembly 200 comprises a supporting steel plate 201 and a jack 202, wherein one end of the jack 202 is contacted with the supporting steel plate 201, and the other end of the jack is contacted with the transmission shaft 102;

the connecting piece 300 comprises an intermediate piece 400, a first connecting group 301 and a second connecting group 302, wherein the first connecting group 301 connects the intermediate piece 400 and the backrest 103, and the second connecting group 302 connects the intermediate piece 400 and the support steel plate 201.

The first connection group 301 includes a first bolt 301a and a first nut 301b, the first nut 301b being disposed in the middle member 400;

the backrest wheel 103 is provided with a first hole 103a, and a first bolt 301a passes through the first hole 103a and is connected with a first nut 301 b.

It should be noted that the first holes 103a are symmetrically arranged holes, and at least two holes are provided.

The second connection group 302 includes a second bolt 302a and a second nut 302b, the second nut 302b being disposed in the middle piece 400; (ii) a

The support steel plate 201 is provided with a second hole 201a, and a second bolt 302a passes through the second hole 201a and is connected with a second nut 302 b.

The second holes 201a are symmetrically arranged, the positions of the second holes are at least two, the second holes correspond to the first holes 103a, the first bolts 301a and the second bolts 302a are special bolts matched with the backrest ring, it should be noted that the driving piece 101 is a motor or a pump, the first bolts 301a penetrate into the two first holes 103a on the backrest ring 103 from the side of the motor or the pump to the outer opposite angles, the other ends of the first bolts 301a are connected with the first nuts 301b, and the screwing depth is the depth of a single nut; similarly, the second bolt 302a passes through the two second holes 201a of the support steel plate 201, and the other end is connected to the second nut 302b, and the intermediate member 400 nuts the second nut 302b and the first nut 301b together.

The bottom end of the jack 202 is contacted with the supporting steel plate 201, and the rod end is contacted with the end part of the transmission shaft 102; a cushion block is arranged between the bottom end of the jack 202 and the support steel plate 201.

It should be noted that, a circular groove is arranged at the center of the supporting steel plate 201, a jack with a proper length is selected, a base of the jack is attached to the circular groove on the supporting steel plate 201, the jack is pressurized, a piston rod of the jack is made to rise, and just props against the end face of the transmission shaft, and at this time, the special tool and the backrest pulley are in a tight state.

In the process of gradually pressing the kilo-gold jack, the back-rest wheel is completely separated from the transmission shaft (if the jack piston is completely pushed out in the process, the back-rest wheel still partially contacts with the shaft, the jack can be loosened, and the jack is disassembled by adopting a method of adding a cushion block on the base of the jack.

Further, a first receiving groove 401 and a second receiving groove 402 are formed in the middle piece 400, the first receiving groove 401 and the second receiving groove 402 are respectively disposed at two ends of the connecting piece 100, the first nut 301b is disposed in the first receiving groove 01, and the second nut 302a is disposed in the second receiving groove 402;

preferably, the intermediate member 400 is a hexagonal prism as a whole.

It should be noted that the backrest wheel 103 and the support steel plate 201 are two plate-shaped structures to be fixed, specifically, holes are provided thereon, and the first bolt 301a and the second bolt 302b are connected with the first nut 301b and the second nut 302a through the holes on the plates, respectively.

The intermediate member 400 is disposed between the backrest 103 and the support steel plate 201, and the intermediate member 400 and the first and second bolts 301a and 302a are disposed between the backrest 103 and the support steel plate 201, so that the distance between the backrest 103 and the support steel plate 201 is fixed.

Specifically, the final distance between the backrest wheel 103 and the support steel plate 201 is determined by the jack 202, and both ends of the jack 202 abut against the backrest wheel 103 and the support steel plate 201, specifically, the end of the piston rod of the jack 202 abuts against the transmission shaft 102.

The first bolt 301a and the second bolt 302b are arranged oppositely, in the process that the first bolt 301a and the second bolt 302b are respectively screwed with the first nut 301b and the second nut 302a, the first bolt 301a and the second bolt 302b respectively drive the backrest wheel 103 and the support steel plate 201 to approach to the middle and finally abut against the jack 202, and finally the outward force of the jack 202 on the backrest wheel 103 and the support steel plate 201 and the inward tightening force of the first bolt 301a and the second bolt 302b on the backrest wheel 103 and the support steel plate 201 are balanced.

During the disassembly process, the piston rod of the jack 202 is lifted, the inward tightening force of the first bolt 301a and the second bolt 302b on the backrest 103 and the support steel plate 201 is opposite to the outward pushing force of the jack 202, so that the jack 202 pushes the transmission shaft 102 out of the backrest 103 under the condition that the distance between the backrest 103 and the support steel plate 201 is kept unchanged.

Further, the first receiving groove 401 includes an outer groove 401a and an inner groove 401b, the cross section of the outer groove 401a is regular hexagon, the cross section of the inner groove 401b is circular, and the cross-sectional area of the inner groove 401b is larger than that of the outer groove 401 a; a disk 401c is provided in the inner groove 401b, and one side of the disk 401c is connected to the bottom of the inner groove 401b by a spring 401 d.

A slotted hole 401e is arranged at the center of the circular plate 401c, the slotted hole 401e is a regular hexagon, and the slotted hole 401e is matched with the size of the outer side slot 401 a.

The slot 401e is offset from the outer slot 401a, specifically, referring to A, B in fig. 4, the first nut 301b is embedded in the outer slot 401a, and the hexagon of the outer slot 401a does not correspond to the hexagon of the slot 401e, so that moving the first nut 301b in the outer slot 401a to the inner slot 401b will push the circular plate 401c to move instead of passing through the slot 401e, and after the first nut 301b completely enters the inner slot 401b, the first nut 301b is rotated until the hexagon of the first nut 301b corresponds to the hexagon of the slot 401e, so that the first nut 301b can pass through the slot 401e and can be rotated freely.

It should be noted that the depth of the inner slot 401b is greater than the thickness of the first nut 301b and the spring 401d does not affect the rotation of the first nut 301 b.

A first slot 401f is arranged in the outer slot 401a, a first opening 401g is arranged on the middle piece 400, and the first opening 401g is arranged corresponding to and communicated with the first slot 401 f; the cross section of the second receiving groove 402 is a regular hexagon, a second slot 402a is disposed in the second receiving groove 402, a second opening 402b is further disposed on the intermediate member 400, and the second opening 402b and the second slot 402a are correspondingly disposed and communicated.

The baffle plate 500 is further included, and the shape of one end of the baffle plate 500 is the same as that of the first slot 401f and the second slot 402 a; the baffle 500 is provided with a circular hole 501.

The circular hole 501 is used for allowing a bolt to pass through, and the baffle plate 500 can limit the first nut 301b in the first receiving groove 01 and limit the second nut 302a in the second receiving groove 402.

The baffle 500 can be inserted into the first slot 401f from the first opening 401g, and the circular hole 501 is coaxial with the circular plate 401 c; a pull hole 502 is formed in the baffle 500 close to the edge; the pull hole 502 facilitates the removal of the baffle 500 from the first opening 401 g.

Specifically, when the first nut 301b is placed in the outer slot 401a, the spring 401d presses the circular plate 401c against the transition between the outer slot 401a and the inner slot 401b, and the slot 401e is offset from the outer slot 401a, so that the first nut 301b is blocked by the circular plate 401c and cannot enter the inner slot 401 b.

Then, the baffle 500 is inserted into the first slot 401f from the first opening 401g, the end of the baffle 500 is inserted into the first slot 401f, and the first bolt 301a connected to the backrest 103 is screwed with the first nut 301b through the circular hole 501, in this process, because the first nut 301b is inserted into the outer slot 401a, the middle part 400 and the first nut 301b rotate synchronously relative to the first bolt 301 a.

It should be noted that the first nut 301b is sized to fit the outer slot 401 a.

Preferably, the structure that the first bolt 301a cannot rotate along its own axis may be that the first bolt 301a is restrained by a wrench or other tools, the first bolt 301a does not rotate, and the intermediate member 400 is held to screw the first nut 301b onto the first bolt 301a conveniently.

Subsequently, the supporting steel plate 201 to which the second bolt 302b is connected is arranged relative to the backrest 103, and the jack 202 is arranged between the backrest 103 and the supporting steel plate 201 at a proper position, and it should be noted that the second bolt 302b cannot rotate relative to the supporting steel plate 201.

Subsequently, the first nut 301b is moved into the inner slot 401b, the pushing circular plate 401c is moved into the inner slot 401b, the spring 401d is compressed, and the first nut 301b is rotated relative to the intermediate member 400 after the first nut 301b is completely inserted into the inner slot 401 b.

At this time, another baffle 500 is inserted into the second slot 402a from the second opening 402b, the second bolt 302b is screwed with the second nut 302a through the circular hole 501, and the middle piece 400 is rotated, which will rotate relative to the first nut 301b, that is, the first nut 301b and the first bolt 301a are fixed; the second nut 302a is engaged with the second receiving groove 402, so that the second nut 302a rotates to screw the second bolt 302b into the second nut 302a, and the supporting steel plate 201 and the second bolt 302b are pulled together toward the middle part 400, thereby shortening the distance between the backrest 103 and the supporting steel plate 201. Again, the distance remains fixed under the constraint of the jack 202.

It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.