1. The utility model provides a ball solenoid valve rotates based on hoist walking wheel lubricating system which characterized in that: comprises an electromagnetic valve coil (1), a cylinder body (2), a rotary ball valve body (3), a rotary ball valve core (5) and an oil port control rotating shaft (4); the electromagnetic valve coil (1) is connected with the upper end face of the rotary ball valve body (3) through the barrel (2), the rotary ball valve core (5) is positioned in the rotary ball valve body (3), and one end of the oil port control rotating shaft (4) extends into the rotary ball valve core (5) from the lower end face of the rotary ball valve body (3) and is connected with the rotary ball valve core (5);

a valve rod (1.1) of the electromagnetic valve coil (1) extends into an inner cavity of the cylinder body (2) to form a piston structure, and the electromagnetic valve coil (1) can drive the valve rod (1.1) to reciprocate in the cavity of the cylinder body (2);

the rotary ball valve body (3) comprises a shell (3.2), the rotary ball valve core (5) comprises a rotary body (5.1), the rotary body (5.1) is connected with the connecting end of the oil port control rotating shaft (4), the rotary body (5.1) is rotatably installed in the shell (3.2), the outer wall of the rotary body (5.1) and the inner wall of the shell (3.2) are in sealing fit to form an annular circular chamber (1-1), and a stop block (3.4) which is used for separating and is not communicated with the annular circular chamber (1-1) is arranged in the annular circular chamber; the outer wall of the rotating body (5.1) is provided with a ball body (5.3), and the ball body (5.3) is in sealed fit with the annular circular chamber (1-1) and can rotate along the annular circular chamber (1-1); the inner cavities of the annular round cavity (1-1) and the barrel body (2) are provided with oil passages which are communicated with each other, and the oil passages penetrate through the connecting ends of the ball body (5.3), the rotating body (5.1) and the oil port control rotating shaft (4).

2. The rotary ball solenoid valve based on a crane walking wheel lubricating system as claimed in claim 1, wherein: the cylinder (2) is internally stored with hydraulic oil, when the solenoid valve coil (1) drives the valve rod (1.1) to extend out, the valve rod (1.1) extrudes the hydraulic oil and enables the hydraulic oil to enter the annular circular cavity (1-1) through the oil passage, and under the blocking action of the stop block (3.4), the hydraulic oil pushes the ball body (5.3) to rotate along the annular circular cavity (1-1), so that the oil port is driven to control the rotating shaft (4) to rotate; in a similar way, when the solenoid valve coil (1) drives the valve rod (1.1) to retract, hydraulic oil is sucked, and under the action of negative pressure, the ball body (5.3) drives the oil port to control the rotating shaft (4) to rotate reversely.

3. The rotary ball solenoid valve based on a crane walking wheel lubricating system as claimed in claim 1, wherein: the axis direction of rotator (5.1) is equipped with square installation and leads to groove (5.2), and spheroid (5.3) radially is equipped with passageway one (5.5) that extend to in square installation leads to groove (5.2), and spheroid (5.3) still is equipped with passageway two (5.6), and the one end and the passageway one (5.5) intercommunication of passageway two (5.6), the other end and the annular circular cavity (1-1) intercommunication of passageway two (5.6).

4. The rotary ball solenoid valve based on a crane walking wheel lubricating system as claimed in claim 3, wherein: the oil port control rotating shaft (4) comprises a connecting shaft (4.1) and an oil port rotating shaft (4.3), and a square mounting block (4.4) matched with the square mounting through groove (5.2) is arranged in the middle of the shaft body of the connecting shaft (4.1).

5. The rotary ball solenoid valve based on the crane walking wheel lubricating system as claimed in claim 4, wherein: the end face axis direction of the connecting shaft (4.1) is provided with a first oil duct (4.5) penetrating through the square mounting block (4.4), the first oil duct (4.5) is communicated with the cavity of the barrel body (2), the side wall of the square mounting block (4.4) is provided with a second oil duct (4.2) communicated with the first oil duct (4.5), the second oil duct (4.2) corresponds to the first channel (5.5), and the first oil duct (4.5), the second oil duct (4.2), the first channel (5.5) and the second channel (5.6) form an oil path channel.

6. The rotary ball solenoid valve based on a crane walking wheel lubricating system as claimed in claim 1, wherein: a first annular arc-shaped groove (3.3) vertical to the axis of the shell is arranged in the shell (3.2); the outer wall of the rotating body (5.1) is provided with a concave annular arc-shaped groove II (5.4), and the annular arc-shaped groove II (5.4) and the annular arc-shaped groove I (3.3) are in sealing fit to form an annular circular chamber (1-1).

7. The rotary ball solenoid valve based on the crane walking wheel lubricating system as claimed in claim 4, wherein: the axis direction of casing (3.2) is equipped with mounting hole (3.5) with connecting axle (4.1) adaptation, and the outer wall of casing (3.2) is equipped with two installation ears (3.1) with its axis direction symmetry.

8. The rotary ball solenoid valve based on the crane walking wheel lubricating system as claimed in claim 6, wherein: the sphere (5.3) is embedded in the annular arc-shaped groove II (5.4), and the spheres (5.3) are at least provided with two spheres and are uniformly arranged in the axial direction of the rotating body (5.1) at equal angles.

9. The rotary ball solenoid valve based on the crane walking wheel lubricating system as claimed in claim 6, wherein: the stop block (3.4) is fixed in the first annular arc-shaped groove (3.3), the stop block (3.4) is in a wafer shape, and the stop block (3.4) is matched with the second annular arc-shaped groove (5.4).

10. The rotary ball solenoid valve based on the crane walking wheel lubricating system as claimed in claim 4, wherein: an oil port channel is arranged at the lower end of the shaft body of the oil port rotating shaft (4.3).

Background

The lubrication system is a generic term for a series of grease supply, grease discharge, and attachments thereof for supplying a lubricant to a lubrication site, and a crane needs to lubricate moving parts having relative movement, such as a wheel set and a swing mechanism, after a period of use.

For the lubricating system of the crane, a distributor is needed to be used for supplying grease to each lubricating point in a centralized mode, the viscosity of the grease is high, in order to enable each lubricating point to supply the grease independently, an electromagnetic valve is directly installed on the distributor, a PLC is used for controlling the on-off of the electromagnetic valve, and the oiling (grease) amount of the lubricating point is adjusted by adjusting the on-time of the electromagnetic valve. When the electromagnetic valve is electrified, the electromagnetic force generated by the electromagnetic valve coil lifts the closing member from the valve seat, and the oil way is opened; when the power is cut off, the electromagnetic force disappears, the spring presses the closing piece on the valve seat, and the oil way is closed.

A chinese patent with an issued publication number of CN102072394B discloses a single-line intelligent lubricant distributor assembly, which comprises: a filter for filtering the lubricating oil entering the distributor assembly; a distributor valve body portion for distributing lubricating oil; and a solenoid valve disposed between the filter and the distributor valve body for controlling whether the lubricating oil enters the distributor valve body.

The lubrication system using the conventional solenoid valve has the following disadvantages:

1. the electromagnetic valve needs to be powered on frequently to be opened and closed, is a vulnerable part and needs to be replaced and maintained frequently, and when the electromagnetic valve is integrally disassembled and replaced, grease in the distributor leaks out due to the pressure in the lubricating system, so that the working environment is polluted; 2. the electromagnetic valve is reset by a spring when power is off, the thrust is small after long-time use, and the closing time of the electromagnetic valve is delayed due to the high viscosity of grease, so that the metering precision is reduced; 3. use in hoist lubricating system, because the particularity of hoist, the hoist during operation can produce vibrations, and the solenoid valve receives the vibration influence to produce not hard up, leads to the grease to spill over, because the lubrication point is more, brings unnecessary trouble for the maintenance.

Disclosure of Invention

The invention aims to overcome the existing defects and provides a rotary ball electromagnetic valve based on a crane walking wheel lubricating system, hydraulic oil is controlled to suck and discharge through the push-pull reciprocating motion of an electromagnetic valve coil, so that a control rotating shaft is driven to rotate through a rotary ball, an oil outlet can be indirectly opened or closed, the purpose of oil supply or oil cut-off is achieved, grease leakage is reduced to the maximum extent, only the electromagnetic valve coil needs to be replaced, the replacement is convenient, time and labor are saved, and the problems in the background art can be effectively solved.

In order to achieve the purpose, the invention provides the following technical scheme: a rotary ball electromagnetic valve based on a crane walking wheel lubricating system comprises an electromagnetic valve coil, a cylinder body, a rotary ball valve core and an oil port control rotating shaft; the electromagnetic valve coil is connected with the upper end face of the rotary ball valve body through the cylinder, the rotary ball valve core is positioned in the rotary ball valve body, and one end of the oil port control rotating shaft extends into the rotary ball valve core from the lower end face of the rotary ball valve body and is connected with the rotary ball valve core;

a valve rod of the electromagnetic valve coil extends into the inner cavity of the cylinder body to form a piston structure, and the electromagnetic valve coil can drive the valve rod to reciprocate in the cavity of the cylinder body;

the rotary ball valve body comprises a shell, the rotary ball valve core comprises a rotary body, the rotary body is connected with the connecting end of the oil port control rotating shaft, the rotary body is rotatably arranged in the shell, the outer wall of the rotary body and the inner wall of the shell are in sealing fit to form an annular circular cavity, and a stop block which is used for separating and making the rotary body not communicated is arranged in the annular circular cavity; the outer wall of the rotating body is provided with a ball body, and the ball body is in sealed fit with the annular circular cavity and can rotate along the annular circular cavity; the annular round cavity and the inner cavity of the barrel are provided with oil passages which are communicated with each other, and the oil passages penetrate through the connecting ends of the ball body, the rotating body and the oil port control rotating shaft.

Preferably, hydraulic oil is stored in the cylinder, when the solenoid valve coil drives the valve rod to extend out, the valve rod extrudes the hydraulic oil and enables the hydraulic oil to enter the annular circular cavity through the oil passage, and under the blocking action of the stop block, the hydraulic oil pushes the ball body to rotate along the annular circular cavity, so that the oil port is driven to control the rotating shaft to rotate; similarly, when the solenoid valve coil drives the valve rod to retract, hydraulic oil is sucked, and under the action of negative pressure, the ball body drives the oil port to control the rotating shaft to rotate reversely.

Preferably, the axis direction of the rotating body is provided with a square installation through groove, the sphere is radially provided with a first channel extending into the square installation through groove, the sphere is further provided with a second channel, one end of the second channel is communicated with the first channel, and the other end of the second channel is communicated with the annular circular cavity.

Preferably, the oil port control rotating shaft comprises a connecting shaft and an oil port rotating shaft, and a square mounting block matched with the square mounting through groove is arranged in the middle of a shaft body of the connecting shaft.

Preferably, the axial direction of the end face of the connecting shaft is provided with a first oil duct penetrating to the square mounting block, the first oil duct is communicated with the cavity of the barrel, the side wall of the square mounting block is provided with a second oil duct communicated with the first oil duct, the second oil duct corresponds to the first channel, and the first oil duct, the second oil duct, the first channel and the second channel form an oil path channel.

Preferably, a first annular arc-shaped groove vertical to the axis of the first annular arc-shaped groove is formed in the shell; the outer wall of the rotating body is provided with a concave annular arc-shaped groove II, and the annular arc-shaped groove II and the annular arc-shaped groove I are matched in a sealing mode to form an annular circular cavity.

Preferably, the axis direction of casing is equipped with the mounting hole with the connecting axle adaptation, and the outer wall of casing is equipped with two installation ears with its axis direction symmetry.

Preferably, the spheres are embedded in the second annular arc-shaped groove, and at least two spheres are uniformly arranged in the axial direction of the rotating body at equal angles.

Preferably, the stop block is fixed in the first annular arc-shaped groove and is in a wafer shape, and the stop block is matched with the second annular arc-shaped groove.

Preferably, an oil port channel is arranged at the lower end of the shaft body of the oil port rotating shaft.

Compared with the prior art, the invention has the beneficial effects that: according to the rotary ball electromagnetic valve based on the crane walking wheel lubricating system, the coil of the electromagnetic valve is electrified to drive the valve rod to act, the valve rod is matched with the cylinder body to form a piston structure, the valve rod moves downwards to extrude hydraulic oil, the hydraulic oil enters the annular circular cavity through the oil passage and is blocked by the stop block, the hydraulic oil pushes the ball body to rotate, and therefore the oil port is driven to control the rotating shaft to rotate; similarly, when the valve rod retracts, hydraulic oil is sucked, the ball body drives the oil port to control the rotating shaft to rotate reversely under the action of negative pressure, the oil outlet is indirectly opened or closed through the function of each part of the electromagnetic valve coil, the oil supply or oil cut-off purpose is achieved, grease is reduced to the maximum extent and leaked, the electromagnetic valve coil is convenient to replace, the electromagnetic valve coil only needs to be replaced, time and labor are saved, and the time for supplying power to the electromagnetic valve coil during oil supply can also determine the quantity of supplied oil.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the components of FIG. 1 in isolation;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is a schematic view of a rotary ball valve body according to the present invention;

FIG. 5 is a cross-sectional view of a rotary ball valve body of the present invention;

FIG. 6 is a schematic view of a rotary ball valve cartridge according to the present invention;

FIG. 7 is a cross-sectional view of a rotary ball valve cartridge of the present invention;

FIG. 8 is a schematic view of the invention showing the engagement of a rotary ball valve body with a rotary ball valve core;

FIG. 9 is a schematic view of the oil port control shaft structure of the present invention;

fig. 10 is a cross-sectional view of the rotary ball valve body, the oil port control spindle, and the rotary ball valve core in cooperation with one another according to the present invention.

In the figure: the rotary ball valve comprises an electromagnetic valve coil 1, a valve rod 1.1, a barrel 2, a rotary ball valve body 3.1 mounting lugs 3.2, a shell 3.3, a first annular arc groove 3.4, a stop block 3.4, a mounting hole 3.5, a control rotating shaft 4 oil ports, a connecting shaft 4.1, a second oil channel 4.2, a rotating shaft 4.3 oil ports, a square mounting block 4.4, a first oil channel 4.5, a rotary ball valve core 5.1, a rotating body 5.1, a square mounting through groove 5.2, a ball body 5.3, a second annular arc groove 5.4, a first channel 5.5, a second channel 5.6 and a circular cavity 1-1.

Detailed Description

In the following description, the technical solutions of the present invention will be described with reference to the drawings of the embodiments of the present invention, and it should be understood that, if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., it is only corresponding to the drawings of the present invention, and for convenience of describing the present invention, it is not necessary to indicate or imply that the indicated devices or elements have a specific orientation:

referring to fig. 1-10, the present invention provides a technical solution:

as shown in fig. 1 and 2, a rotary ball solenoid valve based on a crane traveling wheel lubricating system comprises a solenoid valve coil 1, a cylinder 2, a rotary ball valve body 3, a rotary ball valve core 5 and an oil port control rotating shaft 4; the solenoid valve coil 1 is connected with the upper end face of the rotary ball valve body 3 through the cylinder body 2, the rotary ball valve core 5 is positioned in the rotary ball valve body 3, and one end of the oil port control rotating shaft 4 extends into the lower end face of the rotary ball valve body 3 and is connected with the rotary ball valve core 5;

the valve rod 1.1 of the electromagnetic valve coil 1 extends into the inner cavity of the cylinder 2 and forms a piston structure, the electromagnetic valve coil 1 can drive the valve rod 1.1 to reciprocate in the cavity of the cylinder 2, the electromagnetic valve coil 1 is pushed out or retracted into the valve rod 1.1 by virtue of electromagnetic force, the valve rod 1.1 is matched with the inner cavity of the cylinder 2 so as to generate extrusion force or adsorption force, the electromagnetic valve coil 1 and the valve rod 1.1 are of a split structure, the valve rod 1.1 is positioned in the inner cavity of the cylinder 2 and forms the piston structure, the electromagnetic valve coil 1 is sleeved on the valve rod 1.1, the valve rod 1.1 is adsorbed to move when the electromagnetic valve coil 1 is electrified, and the valve rod 1.1 is reset when the electromagnetic valve coil 1 is powered off;

as shown in fig. 4, 6 and 10, the rotary ball valve body 3 comprises a housing 3.2, the rotary ball valve core 5 comprises a rotary body 5.1, the rotary body 5.1 is connected with the connecting end of the oil port control rotating shaft 4, the rotary body 5.1 is rotatably installed in the housing 3.2, the outer wall of the rotary body 5.1 and the inner wall of the housing 3.2 are in sealing fit to form an annular circular chamber 1-1, and a stop block 3.4 which is used for separating and making the annular circular chamber 1-1 not communicated is arranged in the annular circular chamber 1-1; the outer wall of the rotating body 5.1 is provided with a ball body 5.3, the ball body 5.3 is in sealed fit with the annular circular chamber 1-1 and can rotate along the annular circular chamber 1-1, the stop block 3.4 can limit the rotation stop position of the ball body 5.3, and the stop block 3.4 can seal the annular circular chamber 1-1 to prevent hydraulic oil from permeating through a gap in the extrusion or adsorption process, so that pressure or adsorption force completely acts on the ball body 5.3;

as shown in fig. 8, the inner cavities of the annular circular chamber 1-1 and the cylinder 2 are provided with oil passages communicated with each other, and the oil passages penetrate through the connecting ends of the ball 5.3, the rotating body 5.1 and the oil port control rotating shaft 4; hydraulic oil is stored in the cylinder 2, when the solenoid valve coil 1 drives the valve rod 1.1 to extend out, the valve rod 1.1 extrudes the hydraulic oil and enables the hydraulic oil to enter the annular circular chamber 1-1 through the oil passage, and under the blocking action of the stop block 3.4, the hydraulic oil pushes the ball 5.3 to rotate along the annular circular chamber 1-1, so that the oil port is driven to control the rotation of the rotating shaft 4; similarly, when the solenoid valve coil 1 drives the valve rod 1.1 to retract, hydraulic oil is sucked, under the action of negative pressure, the ball body 5.3 drives the oil port to control the rotating shaft 4 to rotate reversely, the solenoid valve coil 1 indirectly opens or closes the oil outlet through the functional action of each part, the purpose of oil supply or oil cut-off is achieved, grease leakage is reduced to the maximum extent, the replacement is convenient, only the solenoid valve coil 1 needs to be replaced, time and labor are saved, and the time for supplying power to the solenoid valve coil 1 during oil supply can also determine the oil supply amount;

as shown in fig. 6 and 7, a square installation through groove 5.2 is formed in the axial direction of the rotating body 5.1, a first channel 5.5 extending into the square installation through groove 5.2 is radially formed in the sphere 5.3, a second channel 5.6 is further formed in the sphere 5.3, one end of the second channel 5.6 is communicated with the first channel 5.5, and the other end of the second channel 5.6 is communicated with the annular circular chamber 1-1; the oil port control rotating shaft 4 comprises a connecting shaft 4.1 and an oil port rotating shaft 4.3, and a square mounting block 4.4 matched with the square mounting through groove 5.2 is arranged in the middle of the shaft body of the connecting shaft 4.1;

as shown in fig. 9 and 10, a first oil passage 4.5 penetrating through the square mounting block 4.4 is arranged in the axial direction of the end face of the connecting shaft 4.1, the first oil passage 4.5 is communicated with the cavity of the barrel 2, a second oil passage 4.2 communicated with the first oil passage 4.5 is arranged on the side wall of the square mounting block 4.4, the second oil passage 4.2 corresponds to the first channel 5.5, and the first oil passage 4.5, the second oil passage 4.2, the first channel 5.5 and the second channel 5.6 form an oil passage;

it can be understood that when the solenoid valve coil 1 extrudes hydraulic oil through the valve rod 1.1, the hydraulic oil sequentially passes through the first oil passage 4.5, the second oil passage 4.2, the first passage 5.5 and the second passage 5.6 to enter the annular circular chamber 1-1, the hydraulic oil fills the area between the ball 5.3 and the stop block 3.4, and under the blocking action of the stop block 3.4, the hydraulic oil pushes the ball 5.3 to rotate, the ball 5.3 drives the rotator 5.1 to rotate, the rotator 5.1 drives the connecting shaft 4.1 to rotate, so as to drive the oil port rotating shaft 4.3 to rotate, and when the ball 5.1 contacts the stop block 3.4 again, the ball 5.1 is at the end position corresponding to the opening or closing position of the oil port rotating shaft 4.3; when the solenoid valve coil 1 sucks hydraulic oil through the valve rod 1.1, the filled hydraulic oil is sucked back, the ball 5.1 rotates reversely, so that the oil port rotating shaft 4.3 is driven to rotate in the direction, and when the ball 5.1 is in contact with the stop block 3.4, the ball 5.1 is in an initial position corresponding to the opening or closing position of the oil port rotating shaft 4.3;

as shown in fig. 5 and 6, an annular arc-shaped groove I3.3 vertical to the axis of the shell 3.2 is arranged in the shell; the outer wall of the rotating body 5.1 is provided with a concave annular arc-shaped groove II 5.4, and the annular arc-shaped groove II 5.4 is in sealing fit with the annular arc-shaped groove I3.3 to form an annular circular chamber 1-1;

as shown in fig. 4, the axial direction of the housing 3.2 is provided with a mounting hole 3.5 adapted to the connecting shaft 4.1, and the outer wall of the housing 3.2 is symmetrically provided with two mounting lugs 3.1 in the axial direction, so that the housing 3.2 is conveniently mounted and fixed;

as shown in fig. 6, the spheres 5.3 are embedded in the second annular arc-shaped groove 5.4, at least two spheres 5.3 are arranged and uniformly arranged at equal angles in the axial direction of the rotator 5.1, in order to ensure that the rotator 5.1 rotates stably, two spheres 5.3 are arranged, the two spheres 5.3 are symmetrically arranged, when the hydraulic oil pushes the first sphere 5.3 to rotate, the second sphere 5.3 also rotates, the oil port controls the rotation of the rotating shaft 4, when the second sphere 5.3 contacts with the stopper 3.4, the oil port controls the rotating shaft 4 to rotate to the position and opens the oil port, when the hydraulic oil is pumped back, the first sphere 5.3 rotates, and when the first sphere 5.3 contacts with the stopper 3.4, the oil port controls the rotating shaft 4 to rotate to the position reversely and closes the oil port;

in addition, the stop block 3.4 is fixed in the first annular arc-shaped groove 3.3, the stop block 3.4 is in a wafer shape, and the stop block 3.4 is matched with the second annular arc-shaped groove 5.4; the shaft body lower extreme of hydraulic fluid port pivot 4.3 is equipped with the hydraulic fluid port passageway, makes the hydraulic fluid port passageway rotatory through controlling hydraulic fluid port pivot 4.3 is rotatory, realizes closing or opening the grease passageway.

The invention is not described in detail in the prior art, and it is apparent to a person skilled in the art that the invention is not limited to details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the scope of the claims concerned.