Positioning clamp for oil distribution disc of vane pump

Abstract

The utility model relates to the field of oil distribution discs, and discloses a positioning fixture for an oil distribution disc of a vane pump, which comprises a bottom plate, an adjusting component is arranged in the middle of the bottom plate, clamping pieces are arranged on the left side and the right side of the upper portion of the bottom plate, a positioning piece is arranged in the middle of the bottom plate, and sliding grooves are formed in the left side and the right side of the bottom plate. An auxiliary groove is formed in the middle of the bottom plate, connecting grooves are formed in the front, back, left and right sides of the auxiliary groove, the adjusting assembly comprises a motor, the motor is fixedly connected with the left side of the bottom plate, the output end of the motor is fixedly connected with an adjusting rod, and the adjusting rod penetrates through the bottom plate and is rotationally connected with the bottom plate. According to the oil distribution disc clamping device, the bottom plate is matched with the clamping piece and the adjusting assembly, and the shell is matched with the fixing rod and the spring, so that the clamping piece can be better attached to oil distribution discs with different radians, the oil distribution discs with different sizes and different shapes can be clamped and fixed, and the oil distribution disc clamping device is more practical.

Description

Technical Field

[0001] The utility model relates to the field of oil distribution plates, in particular to a positioning fixture for an oil distribution plate of a vane pump. Background Art

[0002] A vane pump is a common type of centrifugal pump that uses rotating vanes to draw liquid from an inlet and push it to an outlet. Vane pumps are commonly used to transport liquids such as water, oil, chemicals, etc.

[0003] In a hydraulic motor or pump, the oil distribution plate plays the role of distributing high and low pressure oil circuits. When high pressure oil enters, the motor or pump generates torque output; and when low pressure oil (return oil) flows in, the oil distribution plate will discharge the high pressure oil in the plunger cavity and stop outputting torque.

[0004] After searching, Chinese patent announcement number: CN217833253U discloses a square oil distribution plate arc surface grinding fixture. The utility model relates to the field of oil distribution plate grinding technology, including a shell seat, both sides of the shell seat are provided with slide grooves, and both sides of the shell seat are penetrated and slidably installed with L-shaped plates, both sides of the L-shaped plate pass through the slide grooves on both sides of the shell seat respectively, and a clamping plate is provided between the two ends of the L-shaped plate, and one side of the clamping plate is provided with an auxiliary part, and both sides of the shell seat are rotatably installed with gear plates, and the edges of one side of the two gear plates are provided with convex shafts, and the inside of the two L-shaped plates are provided with guide grooves adapted to the convex shafts, and the two convex shafts slide through the inside of the two guide grooves respectively. The square oil distribution plate arc surface grinding fixture can quickly complete the clamping and positioning work of the oil distribution plate, thereby facilitating the grinding work of the oil distribution plate, and the fixture can position oil distribution plates of different sizes, thereby improving its scope of application.

[0005] Although the above device can clamp and fix oil distribution plates of different sizes, its clamping plate is relatively straight, and the sides of oil distribution plates of different sizes will have different curvatures. The relatively straight clamping plate will not be able to clamp and fix the oil distribution plate well, which is not practical. Therefore, a positioning fixture for the oil distribution plate of a vane pump is proposed to solve the above problem. Utility Model Content

[0006] In order to make up for the above shortcomings, the utility model provides a positioning fixture for the oil distribution plate of a vane pump, aiming to improve the problem that the clamping plate in the prior art is relatively flat, while the sides of oil distribution plates of different sizes have different curvatures, and the relatively straight clamping plate will not be able to clamp and fix the oil distribution plate well.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a positioning fixture for a vane pump oil distribution plate, comprising a base plate, an adjustment component is arranged in the middle of the base plate, clamping members are arranged on the left and right sides of the upper part of the base plate, a positioning member is arranged in the middle of the base plate, and sliding grooves are opened on the left and right sides of the base plate.

[0008] As a further description of the above technical solution:

[0009] An auxiliary groove is provided in the middle of the bottom plate, and connecting grooves are provided at the front, rear, left and right sides of the auxiliary groove.

[0010] As a further description of the above technical solution:

[0011] The adjustment component includes a motor, which is fixedly connected to the left side of the base plate. The output end of the motor is fixedly connected to an adjustment rod, which passes through the base plate and is connected to the rotation. The left and right parts of the outer wall of the adjustment rod are penetrated and threadedly connected with sliders, and the slider is slidably connected to the slide groove.

[0012] As a further description of the above technical solution:

[0013] The clamping member includes a shell, which is fixedly connected to the slider, a plurality of mounting grooves are provided in the middle of the shell, a fixing rod is slidably connected inside the mounting groove, and a spring is fixedly connected between the mounting groove and the fixing rod.

[0014] As a further description of the above technical solution:

[0015] A rotation groove is provided on the side of the fixing rod close to the positioning member, a ball is rotatably connected inside the rotation groove, a connecting rod is fixedly connected to the side of the ball away from the spring, and an anti-skid plate is fixedly connected to the side of the connecting rod close to the positioning member.

[0016] As a further description of the above technical solution:

[0017] The positioning member includes a control block, which is movably connected to the auxiliary groove. A plurality of limit blocks are arranged outside the control block. A screw rod passes through and is threadedly connected to the middle of the control block. The lower part of the screw rod is rotatably connected to the bottom plate.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the control block is provided with a plurality of inclined grooves.

[0020] As a further description of the above technical solution:

[0021] A side of the limit block close to the control block is fixedly connected with an inclined block, and the inclined block is slidably connected to the inclined groove. The bottom of the limit block is fixedly connected with a connecting block, and the connecting block is slidably connected to the connecting groove.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, by setting the mutual cooperation between the bottom plate, the clamping member and the adjusting assembly, and by the mutual cooperation between the shell, the fixing rod and the spring, the clamping member can better fit the oil distribution plates with different curvatures, and can clamp and fix the oil distribution plates of different sizes and shapes, which is more practical.

[0024] 2. In the utility model, by setting the mutual cooperation between the bottom plate and the positioning assembly and the clamping member, and by the mutual cooperation between the control block and the limit block, and the screw and the inclined groove, the inclined block, and the connecting block, the device can position the holes in the middle of the oil distribution plate of different sizes, which is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a positioning fixture for a vane pump oil distribution plate proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the split three-dimensional structure of a positioning fixture for an oil distribution plate of a vane pump proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of the enlarged three-dimensional structure of the A position of the positioning fixture of the vane pump oil distribution plate proposed by the utility model;

[0028] Figure 4 This is a schematic diagram of the split three-dimensional structure of a positioning member of a positioning fixture for an oil distribution plate of a vane pump proposed by the utility model;

[0029] Figure 5 This is a schematic diagram of a three-dimensional structure of a clamping member of a positioning fixture for an oil distribution plate of a vane pump proposed by the utility model;

[0030] Figure 6 The utility model is a schematic diagram of a three-dimensional structure of a fixed rod of a positioning fixture of an oil distribution plate of a vane pump, which is disassembled.

[0031] Legend:

[0032] 1. Bottom plate; 2. Positioning piece; 3. Clamping piece; 4. Adjusting assembly; 11. Slide groove; 12. Auxiliary groove; 13. Connecting groove; 41. Motor; 42. Adjusting rod; 43. Sliding block; 31. Housing; 32. Fixing rod; 33. Mounting groove; 34. Spring; 321. Rotating groove; 322. Ball bearing; 323. Connecting rod; 324. Anti-skid plate; 21. Control block; 22. Limiting block; 23. Screw; 211. Bevel groove; 221. Bevel block; 222. Connecting block. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Reference Figure 1 - Figure 2 The utility model provides an embodiment: a positioning fixture for an oil distribution plate of a vane pump, comprising a base plate 1 for connecting various components, an adjusting component 4 is arranged in the middle of the base plate 1, for adjusting the distance between the two clamping members 3, for fixing the oil distribution plate of the vane pump, and facilitating later processing, clamping members 3 are arranged on the left and right sides of the upper part of the base plate 1, and the two clamping members 3 cooperate with each other to clamp and fix the oil distribution plate, a positioning member 2 is arranged in the middle of the base plate 1, for positioning the oil distribution plate through the hole in the middle of the oil distribution plate, sliding grooves 11 are arranged on the left and right sides of the base plate 1, for cooperating with the connection of the slider 43, so as to cooperate with the connection between the adjusting component 4 and the clamping member 3, an auxiliary groove 12 is arranged in the middle of the base plate 1, for cooperating with the lifting and moving of the control block 21, and connecting grooves 13 are arranged on the front, back, left and right sides of the auxiliary groove 12, for cooperating with the connection of the connecting block 222, so as to cooperate with the connection and movement of the limit block 22.

[0035] Furthermore, the adjustment component 4 includes a motor 41 for providing power for the component, and its rotation direction can be controlled by a circuit. The motor 41 is fixedly connected to the left side of the base plate 1, and the output end of the motor 41 is fixedly connected to an adjustment rod 42, and its left and right sides are respectively provided with threads in opposite directions. The adjustment rod 42 penetrates the base plate 1 and is connected to the rotation. The left and right parts of the outer wall of the adjustment rod 42 are penetrated and threadedly connected with a slider 43 for cooperating with the clamping member 3, and the slider 43 is slidably connected to the slide groove 11.

[0036] like Figure 5 - Figure 6As shown, the clamping member 3 includes a shell 31 for connecting various components. The shell 31 is fixedly connected to the slider 43. A plurality of mounting grooves 33 are provided in the middle of the shell 31 for matching the connection of the fixing rod 32. The fixing rod 32 is slidably connected inside the mounting groove 33 for fixing the oil distribution plate. A spring 34 is fixedly connected between the mounting groove 33 and the fixing rod 32 for matching the movement and reset of the fixing rod 32. At the same time, it can push the fixing rod 32 to fix the oil distribution plate. A rotating groove 321 is provided on the side of the fixing rod 32 close to the positioning member 2, which can move the ball 32 2 to prevent the ball 322 from being separated from it. The ball 322 can rotate in the rotating groove 321, and a small part of the ball 322 will be exposed to the outside, which is convenient for assisting in adjusting the angle of the anti-skid plate 324, so that the anti-skid plate 324 fits the oil distribution plate more closely. The inner rotation connection of the rotating groove 321 is provided with the ball 322 for connection with the rotating groove 321. The side of the ball 322 away from the spring 34 is fixedly connected with a connecting rod 323 for connection between the ball 322 and the anti-skid plate 324. The side of the connecting rod 323 close to the positioning member 2 is fixedly connected with the anti-skid plate 324, which is made of rubber.

[0037] See also Figure 3 - Figure 4 The positioning member 2 includes a control block 21, which is a frustum, the inner side of the limit block 22 can be fitted therewith, the control block 21 is movably connected to the auxiliary groove 12, and a limit block 22 is arranged on the outside of the control block 21, and the number is multiple, which can be used to press and limit holes of different sizes in the middle of the oil distribution plate, and the middle of the control block 21 is penetrated and threadedly connected with a screw 23, which is used to adjust the height of the control block 21 to cooperate with the adjustment of multiple limit blocks 22, and the lower part of the screw 23 is rotatably connected to the bottom plate 1, and the outer wall of the control block 21 is provided with an inclined groove 211 and the number is multiple, which is used to cooperate with the connection of the inclined block 221, and the limit block 22 is fixedly connected with an inclined block 221 on one side close to the control block 21, and the inclined block 221 is slidably connected to the inclined groove 211, and the bottom of the limit block 22 is fixedly connected with a connecting block 222, which is used to cooperate with the connection between the limit block 22 and the bottom plate 1, and to cooperate with the movement of the limit block 22, and the connecting block 222 is slidably connected to the connecting groove 13.

[0038] Working principle: When in use, first put the hole in the middle of the oil distribution plate on the outside of the positioning piece 2, and then rotate the screw 23 according to the size of the hole. Since the screw 23 is threadedly connected to the control block 21, and the control block 21 is connected to the limit block 22 through the inclined groove 211 and the inclined block 221, and the bottom of the limit block 22 is connected to the bottom plate 1 through the connecting block 222, when the screw 23 rotates, the control block 21 connected to the limit block 22 cannot rotate together. At this time, the screw 23 The rotation direction can be controlled, and the control block 21 moves upward or downward. When the control block 21 moves upward, it will pull the inclined block 221 through the inclined groove 211, which will drive the multiple limit blocks 22 to approach each other. At this time, the connecting block 222 will slide in the connecting groove 13. When the control block 21 moves downward, it will push the multiple limit blocks 22 to expand outward. When the multiple limit blocks 22 press against the inner wall of the hole, the rotation of the screw 23 can be stopped. At this time, the oil distribution plate will complete the initial positioning.

[0039] When the oil distribution plate needs to be clamped and fixed, the motor 41 is turned on, which will drive the adjusting rod 42 to rotate, and the two sliders 43 connected to the adjusting rod 42 will move closer to or away from each other, and the two sliders 43 will drive the clamping member 3 connected thereto through the housing 31. When the clamping member 3 approaches the oil distribution plate, the fixing rod 32 will press against the side of the oil distribution plate. At this time, the oil distribution plate will apply a reaction force to the fixing rod 32, and the side of the oil distribution plate will push the fixing rod 32 to slide into the mounting groove 33. The fixing rod 32 will squeeze the spring 34. At this time, the spring 34 will apply a reaction force to the fixing rod 32, pushing it outward, thereby pressing the oil distribution plate tightly. When the fixing rod 32 is pressed against the oil distribution plate, the anti-skid plate 324 will be tilted at an angle along the side curvature of the oil distribution plate, and the anti-skid plate 324 will then drive the ball 322 to rotate in the rotating groove 321 through the connecting rod 323, so that the anti-skid plate 324 can better press against the oil distribution plate. When the two clamping members 3 clamp and fix the oil distribution plate, the motor 41 can be turned off. When the oil distribution plate is processed and needs to be removed, the motor 41 is turned on to control the circuit to reverse, so that the two clamping members 3 release the oil distribution plate, and then the screw 23 is rotated to drive the control block 21 to control the limit block 22 to release the hole in the middle of the oil distribution plate to remove the oil distribution plate.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning fixture for a vane pump oil distribution plate, comprising a base plate (1), characterized in that: An adjustment component (4) is arranged in the middle of the base plate (1), clamping parts (3) are arranged on the left and right sides of the upper part of the base plate (1), a positioning part (2) is arranged in the middle of the base plate (1), and sliding grooves (11) are arranged on the left and right sides of the base plate (1).

2. The positioning fixture for the oil distribution plate of a vane pump according to claim 1, characterized in that: An auxiliary groove (12) is provided in the middle of the bottom plate (1), and connecting grooves (13) are provided on the front, back, left and right sides of the auxiliary groove (12).

3. The positioning fixture for the oil distribution plate of a vane pump according to claim 1, characterized in that: The adjustment assembly (4) comprises a motor (41), the motor (41) is fixedly connected to the left side of the base plate (1), an output end of the motor (41) is fixedly connected to an adjustment rod (42), the adjustment rod (42) passes through the base plate (1) and is rotatably connected, and a slider (43) is passed through the left and right parts of the outer wall of the adjustment rod (42) and is threadedly connected, and the slider (43) is slidably connected to the slide groove (11).

4. The positioning fixture for the oil distribution plate of a vane pump according to claim 3, characterized in that: The clamping member (3) comprises a shell (31), the shell (31) is fixedly connected to a slider (43), a plurality of mounting grooves (33) are provided in the middle of the shell (31), a fixing rod (32) is slidably connected inside the mounting groove (33), and a spring (34) is fixedly connected between the mounting groove (33) and the fixing rod (32).

5. The positioning fixture for the oil distribution plate of a vane pump according to claim 4, characterized in that: A rotation groove (321) is provided on a side of the fixing rod (32) close to the positioning member (2); a ball (322) is rotatably connected inside the rotation groove (321); a connecting rod (323) is fixedly connected to a side of the ball (322) away from the spring (34); and an anti-slip plate (324) is fixedly connected to a side of the connecting rod (323) close to the positioning member (2).

6. The positioning fixture for the oil distribution plate of a vane pump according to claim 1, characterized in that: The positioning member (2) comprises a control block (21), the control block (21) being movably connected to the auxiliary groove (12), a plurality of limit blocks (22) being arranged outside the control block (21), a screw rod (23) penetrating through the middle of the control block (21) and being threadedly connected, and a lower portion of the screw rod (23) being rotatably connected to the bottom plate (1).

7. The positioning fixture for the oil distribution plate of a vane pump according to claim 6, characterized in that: The outer wall of the control block (21) is provided with a plurality of inclined grooves (211).

8. The positioning fixture for the oil distribution plate of a vane pump according to claim 7, characterized in that: A slanted block (221) is fixedly connected to one side of the limit block (22) close to the control block (21), and the slanted block (221) is slidably connected to the slanted groove (211). A connecting block (222) is fixedly connected to the bottom of the limit block (22), and the connecting block (222) is slidably connected to the connecting groove (13).

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