1. A power hydraulic driving mechanism is characterized in that,

the power hydraulic driving mechanism comprises a protective shell, a driving arm and a driving device, wherein a mounting plate is arranged in the protective shell, a rotating frame is arranged on the mounting plate, a rotating groove is also formed in the protective shell, the driving arm penetrates through the rotating groove and is movably connected with the rotating frame, the driving device comprises two pushing assemblies, and the two pushing assemblies are symmetrically and obliquely arranged on two sides of the rotating frame;

each pushing assembly comprises a connecting frame and a hydraulic oil cylinder, connecting shafts are symmetrically and obliquely arranged on two sides of one end, close to the rotating frame, of each driving arm, the connecting frames are detachably connected with the mounting plates, one end of each hydraulic oil cylinder is movably connected with the connecting frames, and the other end of each hydraulic oil cylinder is movably connected with the corresponding connecting shaft.

2. The power hydraulic drive mechanism of claim 1,

every hydraulic cylinder all includes cylinder body and dwang, the one end of cylinder body is provided with the dwang, the other end of cylinder body is provided with the through-hole, the dwang with coupling frame swing joint, the through-hole with coupling phase looks adaptation.

3. The power hydraulic drive mechanism of claim 2,

every the connecting frame all includes two connecting pieces, every the connecting piece all includes bottom plate and riser, the bottom plate with the connection is dismantled to the mounting panel, the riser with bottom plate fixed connection, and with bottom plate mutually perpendicular, be provided with the connecting hole on the riser, the connecting hole with dwang looks adaptation.

4. The power hydraulic drive mechanism of claim 1,

the driving arm comprises an arm body and a shell, the arm body penetrates through the rotating groove and is movably connected with the rotating frame, the shell covers the outside of the arm body, and the shell is located outside the protective shell.

5. The power hydraulic drive mechanism of claim 4,

the shell is close to the one end of protective housing is provided with the scraper, the scraper covers and establishes the outside in rotation groove.

6. The power hydraulic drive mechanism of claim 5,

the dust scraping plate comprises a first arc plate and a second arc plate, the first arc plate and the second arc plate are fixedly connected with the shell and respectively located on two sides of the shell, and the inner sides of the first arc plate and the second arc plate are attached to the outer side of the protective shell.

Background

When the spraying robot is used for spraying, a rotating device and a turning device are often arranged at the joint of the spraying robot in order to enable the spraying range to be more comprehensive, and the rotating device and the turning device are used for expanding the moving range of a spraying arm;

but current spraying robot's turning device adopts thereby the upset of motor drive speed reducer drive spraying arm mostly, can occupy the great space in the protective housing of spraying robot joint department, and the structure is reasonable inadequately, and driving motor has explosive danger in addition, receives service environment's restriction, and manufacturing cost is high.

Disclosure of Invention

The invention aims to provide a power hydraulic driving mechanism, which solves the problems that a motor is mostly adopted to drive a speed reducer to drive a spraying arm to overturn in the existing overturning device of a spraying robot in the prior art, the overturning device occupies a large space in a protective shell at the joint of the spraying robot, the structure is not reasonable enough, meanwhile, the explosion hazard of a driving motor is avoided, the overturning device can be used in multiple environments, and the manufacturing cost is low.

In order to achieve the purpose, the invention provides a power hydraulic driving mechanism which comprises a protective shell, a driving arm and a driving device, wherein an installation plate is arranged inside the protective shell, a rotating frame is arranged on the installation plate, a rotating groove is also arranged on the protective shell, the driving arm penetrates through the rotating groove and is movably connected with the rotating frame, the driving device comprises two pushing assemblies, and the two pushing assemblies are symmetrically and obliquely arranged on two sides of the rotating frame;

each pushing assembly comprises a connecting frame and a hydraulic oil cylinder, connecting shafts are symmetrically and obliquely arranged on two sides of one end, close to the rotating frame, of each driving arm, the connecting frames are detachably connected with the mounting plates, one end of each hydraulic oil cylinder is movably connected with the connecting frames, and the other end of each hydraulic oil cylinder is movably connected with the corresponding connecting shaft.

The two pushing assemblies are symmetrically and obliquely arranged on two sides of the rotating frame, the output end of each hydraulic oil cylinder is movably connected with one connecting shaft, the two hydraulic oil cylinders are started respectively, one hydraulic oil cylinder pushes the other hydraulic oil cylinder to withdraw, the torque of the overturning of the driving arm is increased, the pitching angle of the driving arm is increased, and compared with the situation that the driving arm is driven to overturn through a motor-driven speed reducer, the power hydraulic driving mechanism saves more space in the protective shell.

Wherein, every hydraulic cylinder all includes cylinder body and dwang, the one end of cylinder body is provided with the dwang, the other end of cylinder body is provided with the through-hole, the dwang with the connecting frame swing joint, the through-hole with connecting axle looks adaptation.

The hydraulic oil cylinder is movably connected with the rotating frame through the rotating rod, and the pushing end of the hydraulic oil cylinder is connected with the connecting shaft through the through hole.

Wherein, every the carriage all includes two connecting pieces, every the connecting piece all includes bottom plate and riser, the bottom plate with the connection is dismantled to the mounting panel, the riser with bottom plate fixed connection, and with bottom plate mutually perpendicular, be provided with the connecting hole on the riser, the connecting hole with dwang looks adaptation.

The vertical plates are respectively installed on the connecting rods by utilizing the connecting holes, and the bottom plate is fixed on the installation plate by utilizing screws, so that the hydraulic oil cylinder is movably connected with the rotating frame, the vertical plates are fixedly connected with the bottom plate, and the structure is made to be firmer by adopting an integral forming technology during manufacturing.

The driving arm comprises an arm body and a shell, the arm body penetrates through the rotating groove and is movably connected with the rotating frame, the shell covers the outer portion of the arm body, and the shell is located outside the protective shell.

The shell is covered outside the arm body, so that dust and paint are prevented from falling into the protective shell through the rotating groove.

And a dust scraping plate is arranged at one end, close to the protective shell, of the shell, and the dust scraping plate covers the outer part of the rotating groove.

The dust scraping plate is arranged at one end, close to the protective shell, of the shell, so that when the driving arm is driven by the driving device to overturn, dust and paint accumulated outside the protective shell are scraped off through the dust scraping plate.

Wherein, the dust scraping plate comprises a first arc plate and a second arc plate, the first arc plate and the second arc plate are fixedly connected with the shell and respectively located at two sides of the shell, and the inner sides of the first arc plate and the second arc plate are respectively attached to the outer side of the protective shell.

First arc board with the second arc board all with shell fixed connection adopts integrated into one piece technique to make during the manufacturing, and the structure is more firm, first arc board with the inboard of second arc board all with the outside of protective housing is laminated mutually, makes the scraper hugs closely the protective housing to avoid dust and coating to pass through the gap, follow the rotation groove drops extremely the inside of protective housing.

The invention relates to a power hydraulic driving mechanism, wherein two pushing assemblies are symmetrically and obliquely arranged on two sides of a rotating frame, driving arms are movably connected with the rotating frame, connecting shafts are symmetrically and obliquely arranged on two sides of one end, close to the rotating frame, of each driving arm, one end of a hydraulic oil cylinder is movably connected with the connecting frame, the other end of the hydraulic oil cylinder is movably connected with the corresponding connecting shaft, the two pushing assemblies are symmetrically and obliquely arranged on two sides of the rotating frame, the output end of each hydraulic oil cylinder is movably connected with one connecting shaft respectively, the two hydraulic oil cylinders are started respectively, one hydraulic oil cylinder pushes, the other hydraulic oil cylinder retracts, so that the overturning torque of the hydraulic oil cylinders is increased, the pitching angle of the driving arms is increased, and compared with the driving arms are driven to overturn by a motor-driven speed reducer, the power hydraulic driving mechanism saves space in the protective shell, avoids explosive danger of the driving motor, can be used in multiple environments, and reduces manufacturing cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a spray arm provided by the present invention.

Fig. 2 is a partial structural schematic view of the spray arm provided by the present invention.

Fig. 3 is an enlarged view of a portion of the structure of fig. 2 a according to the present invention.

Fig. 4 is a schematic view of the internal structure of the protective case provided by the present invention.

1-protective shell, 11-mounting plate, 12-rotating frame, 13-clamping plate, 14-clamping groove, 15-bearing sleeve, 16-bearing, 17-driven tooth part, 18-driving motor, 19-output gear, 2-driving arm, 21-connecting shaft, 22-arm body, 23-shell, 24-dust scraping plate, 25-first arc plate, 26-second arc plate, 3-driving device, 31-pushing component, 32-connecting frame, 321-connecting piece, 322-bottom plate, 323-vertical plate, 324-connecting hole, 33-hydraulic oil cylinder, 331-cylinder body, 332-rotating rod and 333-through hole.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 4, the invention provides a power hydraulic driving mechanism, which includes a protective shell 1, a driving arm 2 and a driving device 3, wherein an installation plate 11 is arranged inside the protective shell 1, a rotating frame 12 is arranged on the installation plate 11, a rotating groove is further arranged on the protective shell 1, the driving arm 2 penetrates through the rotating groove and is movably connected with the rotating frame 12, the driving device 3 includes two pushing assemblies 31, and the two pushing assemblies 31 are symmetrically and obliquely arranged on two sides of the rotating frame 12;

each pushing assembly 31 comprises a connecting frame 32 and a hydraulic oil cylinder 33, connecting shafts 21 are symmetrically and obliquely arranged on two sides of one end, close to the rotating frame 12, of each driving arm 2, the connecting frame 32 is detachably connected with the mounting plate 11, one end of each hydraulic oil cylinder 33 is movably connected with the connecting frame 32, and the other end of each hydraulic oil cylinder 33 is movably connected with the corresponding connecting shaft 21.

In this embodiment, the two pushing assemblies 31 are symmetrically and obliquely placed on two sides of the rotating frame 12, the output end of each hydraulic cylinder 33 is movably connected to one connecting shaft 21, and the two hydraulic cylinders 33 are respectively started, so that one hydraulic cylinder 33 pushes and the other hydraulic cylinder 33 retracts, thereby increasing the torque of the overturning of the driving arm 2, and further increasing the pitch angle of the driving arm 2, and compared with the method that the driving arm 2 is driven to overturn by a motor-driven speed reducer, the power hydraulic driving mechanism saves more space in the protective housing 1, avoids the explosive danger of a driving motor, can be used in multiple environments, and reduces the manufacturing cost.

Furthermore, each hydraulic oil cylinder 33 comprises a cylinder body 331 and a rotating rod 332, the rotating rod 332 is arranged at one end of the cylinder body 331, a through hole 333 is arranged at the other end of the cylinder body 331, the rotating rod 332 is movably connected with the connecting frame 32, the through hole 333 is matched with the connecting shaft 21, each connecting frame 32 comprises two connecting pieces 321, each connecting piece 321 comprises a bottom plate 322 and a vertical plate 323, the bottom plate 322 is detachably connected with the mounting plate 11, the vertical plate 323 is fixedly connected with the bottom plate 322 and is perpendicular to the bottom plate 322, a connecting hole 324 is arranged on the vertical plate 323, and the connecting hole 324 is matched with the rotating rod 332.

In this embodiment, the hydraulic cylinder 33 is movably connected to the rotating frame 12 by the rotating rod 332, the pushing end of the hydraulic cylinder 33 is connected to the connecting shaft 21 by the through hole 333, the vertical plate 323 is mounted on the connecting shaft by the connecting holes 324, and the bottom plate 322 is fixed to the mounting plate 11 by screws, so that the hydraulic cylinder 33 is movably connected to the rotating frame 12, and the vertical plate 323 is fixedly connected to the bottom plate 322.

Further, the driving arm 2 includes an arm 22 and a housing 23, the arm 22 penetrates through the rotation slot and is movably connected to the rotation frame 12, the housing 23 covers the outside of the arm 22, and the housing 23 is located outside the protection shell 1.

In the present embodiment, the housing 23 is covered outside the arm 22, so that dust and paint are prevented from falling into the interior of the protective case 1 through the rotation groove.

Further, the shell 23 is close to the one end of protective housing 1 is provided with the scraper 24, the scraper 24 covers and establishes the outside in rotation groove, the scraper 24 includes first arc board 25 and second arc board 26, first arc board 25 with second arc board 26 all with shell 23 fixed connection, and be located respectively the both sides of shell 23, first arc board 25 with the inboard of second arc board 26 all with the outside of protective housing 1 is laminated mutually.

In this embodiment, the shell 23 is close to one end of the protective shell 1 is provided with the dust scraping plate 24, so that the driving device 3 drives the driving arm 2 to overturn, the dust scraping plate 24 scrapes off dust and paint accumulated outside the protective shell 1, the first arc plate 25 and the second arc plate 26 are fixedly connected with the shell 23, and are manufactured by adopting an integrated forming technology, so that the structure is firmer, the inner sides of the first arc plate 25 and the second arc plate 26 are attached to the outer side of the protective shell 1, so that the dust scraping plate 24 is tightly attached to the protective shell 1, thereby preventing dust and paint from falling to the inside of the protective shell 1 through gaps.

Further, a clamping plate 13 is further arranged inside the protective shell 1, a clamping groove 14 is formed in the clamping block, the clamping groove 14 is matched with the clamping block in the protective shell 1, a bearing sleeve 15 is arranged inside the clamping plate 13, a bearing 16 is arranged inside the bearing sleeve 15, and the mounting plate 11 is detachably connected with the bearing 16.

In this embodiment, the card board 13 is fixed inside the protective case 1 by the card slot 14, and the bearing 16 is movably connected inside the card board 13 by the bearing sleeve 15, so that the mounting plate 11 is movably connected with the card board 13

Further, a driven tooth portion 17 is arranged inside the bearing 16, a driving motor 18 is further arranged inside the protective shell 1, an output gear 19 is arranged at an output end of the driving motor 18, and the output gear 19 is meshed with the driven tooth portion 17.

In this embodiment, the driving motor 18 is started because the output gear 19 is engaged with the driven teeth 17, thereby rotating the bearing 16 and further rotating the mounting plate 11 on the card 13.

Further, the number of teeth of the output gear 19 is smaller than that of the driven gear portion 17.

In this embodiment, the number of teeth of the output gear 19 is smaller than the number of teeth of the driven tooth portion 17, so that the output gear 19 is driven by the driving motor 18, and the bearing 16 is driven to rotate at a slow rotating speed, thereby reducing the rotating speed of the speed reducer.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.