Hydraulic pump for miniature excavator
By designing a reinforcement device at the oil outlet of the hydraulic pump, and using slide rails, sliding blocks and other components to squeeze and fix the pipeline joints, the problem of loose pipes is solved and the effectiveness of the hydraulic pump is improved.
Patent Information
- Application Number
- CN202421292634.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-06-07
AI Technical Summary
When using hydraulic pumps on micro excavators, the pipelines at the oil outlet are prone to loosen due to high pressure and external forces, which affects the effectiveness of the hydraulic pump.
A reinforcement device is designed, including a slide rail, a sliding block, a first bolt, a connecting block, a placement block and a reinforcement block. Through the cooperation of these components, the pipe joint at the oil outlet can be squeezed and fixed to prevent loosening.
It effectively prevents the pipeline at the oil outlet from loosening after being subjected to external force, and improves the effectiveness and safety of the hydraulic pump.
Smart Images
Figure CN222436593U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic pumps, in particular to a hydraulic pump for a mini excavator. Background Art
[0002] The hydraulic pump is the power element in the hydraulic transmission system. It converts the mechanical energy of the engine or motor into the pressure energy of the liquid, thereby driving the actuators in the hydraulic system to work.
[0003] When using a hydraulic pump on a mini excavator, refuel at the refueling port on one side of the housing and discharge oil at the oil outlet on the other side. The safety solenoid valve inside the housing can lock the pilot function when the excavator does not need to move, which plays a safety role. When the oil outlet is connected to an external pipeline, it is generally in a high-pressure state, and then the external pipeline at the oil outlet is easily loosened after being subjected to external force, which affects the use effect of the hydraulic pump. Utility Model Content
[0004] The utility model proposes a hydraulic pump for a micro excavator to solve the problem that when the oil outlet is connected to an external pipeline and oil is discharged, the oil outlet is generally in a high-pressure state, and then the external pipeline at the oil outlet is easily loosened after being subjected to external force, thereby affecting the use effect of the hydraulic pump.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a hydraulic pump for a micro excavator, comprising a shell and a connecting assembly, a refueling port is provided on one side of the shell, an oil outlet is provided on the side of the shell away from the refueling port, a reinforcement device is provided on one side of the shell with the aid of the connecting assembly, the reinforcement device comprises a slide rail, a sliding block is slidably connected to the inside of the slide rail, a first bolt is rotatably connected to one side of the sliding block, a connecting block is threadedly connected to one side of the first bolt, a placement block is fixedly connected to one side of the connecting block, a reinforcement block is fixedly connected to one side of the placement block, and the size of the reinforcement block is adapted to the size of an external pipeline at the oil outlet on the surface of the shell.
[0006] The effect achieved by the above components is: when the hydraulic pump is used on the mini excavator, the refueling port on one side of the shell is used for refueling, and the oil outlet on the other side is used for oil outlet, and the safety solenoid valve inside the shell can lock the pilot function of the excavator when it does not need to move, thereby playing a safety role. After the oil outlet on the surface of the shell is connected to the external pipeline, the sliding block can be moved to move inside the slide rail. At this time, the reinforcement block is at the upper end of the external pipeline joint, and then the first bolt is rotated to make the first bolt drive the connecting block to move downward, and then the connecting block drives the reinforcement block to move downward through the placement block to squeeze and fix the joint of the external pipeline. By using the reinforcement device, the pipe joint connected to the oil outlet can be abutted and fixed to complete the reinforcement of the pipeline position at the oil outlet on the surface of the shell, so as to avoid the external pipeline at the oil outlet from loosening after being subjected to external force, thereby improving the use effect of the hydraulic pump.
[0007] Preferably, a plurality of anti-sliding blocks are fixedly connected to one side of the first bolt, and the plurality of anti-sliding blocks are equidistantly arranged on one side of the first bolt.
[0008] The effect achieved by the above components is: by using the anti-sliding block, the friction with the operator is increased, so that the first bolt can be rotated more easily.
[0009] Preferably, one side of the placement block is fixedly connected to a reinforcement block, and the side of the reinforcement block away from the placement block is fixedly connected to the connection block.
[0010] The effect achieved by the above components is: the connection strength between the moving block and the placement block can be improved by the reinforcement block, thereby avoiding the occurrence of stress deformation at the connection between the placement block and the moving block.
[0011] Preferably, a rubber pad is fixedly connected to one side of the reinforcement block, and the size of the rubber pad is matched with the size of the reinforcement block.
[0012] The effect achieved by the above components is: by using the rubber pad, the friction between the reinforcement block and the contacted object is increased, thereby improving the use effect of the reinforcement block.
[0013] Preferably, arc blocks are fixedly connected to both sides of the sliding block, and the surfaces of the two arc blocks are smooth.
[0014] The effect achieved by the above components is: by using the arc block, the friction between the sliding block and the slide rail is reduced, so that the sliding block can move more easily inside the slide rail.
[0015] Preferably, the connecting assembly includes a mounting block, one side of which is fixedly connected to the outer shell, a second bolt is threadedly inserted into the interior of the mounting block, one side of the second bolt is threadedly connected to an L-shaped block, and one side of the L-shaped block is fixedly connected to the slide rail.
[0016] The effect achieved by the above-mentioned components is: when using the reinforcement device, the slide rail can be moved so that the L-shaped block on one side of the slide rail is inserted into the mounting block, and then the second bolt is rotated so that the second bolt passes through the mounting block and reaches the inside of the L-shaped block to complete the fixation of the slide rail position. By using the reinforcement device, the position of the reinforcement device can be quickly fixed, thereby facilitating the operator to use the reinforcement device.
[0017] Preferably, one side of the second bolt is in contact with a gasket, and one side of the gasket is in contact with a mounting block.
[0018] The effect achieved by the above components is: by using the gasket, the contact area between the second bolt and the mounting block is increased, thereby preventing the second bolt from loosening.
[0019] Preferably, guide plates are fixedly connected to both sides of the mounting block, and the guide plates are obliquely arranged on both sides of the mounting block.
[0020] The effect achieved by the above components is: by using the guide plate, the size of the installation block entrance is increased, so that the L-shaped block can be easily inserted into the installation block.
[0021] In summary, the beneficial effects of the utility model are:
[0022] By using a reinforcement device, the pipe joint connected to the oil outlet can be abutted and fixed to complete the reinforcement of the pipe position at the oil outlet on the shell surface, avoiding the external pipe at the oil outlet from loosening after being subjected to external force, thereby improving the use effect of the hydraulic pump. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0024] Figure 2 For this utility model Figure 1 A right-view stereoscopic structure diagram of ;
[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the reinforcement device of the utility model;
[0026] Figure 4 For this utility model Figure 3 Enlarged view of point A.
[0027] Legend: 1. Housing; 2. Reinforcement device; 21. Slide rail; 22. Sliding block; 23. First bolt; 24. Connecting block; 25. Placement block; 26. Reinforcement block; 27. Anti-sliding block; 28. Strengthening block; 29. Rubber pad; 210. Arc block; 3. Connecting assembly; 31. Mounting block; 32. Second bolt; 33. L-shaped block; 34. Gasket; 35. Guide plate; 4. Refueling port; 5. Oil outlet. DETAILED DESCRIPTION
[0028] Reference Figure 1-4 As shown, this embodiment discloses a hydraulic pump for a micro excavator, including a housing 1 and a connecting assembly 3. A refueling port 4 is provided on one side of the housing 1, an oil outlet 5 is provided on the side of the housing 1 away from the refueling port 4, and a reinforcement device 2 is provided on one side of the housing 1 by means of the connecting assembly 3.
[0029] Reference Figure 1-4 As shown, the present embodiment discloses a reinforcement device 2 including a slide rail 21, a slide block 22 is slidably connected inside the slide rail 21, a first bolt 23 is rotatably connected to one side of the slide block 22, a connection block 24 is threadedly connected to one side of the first bolt 23, a placement block 25 is fixedly connected to one side of the connection block 24, a reinforcement block 26 is fixedly connected to one side of the placement block 25, and the size of the reinforcement block 26 matches the size of the external pipe at the oil outlet 5 on the surface of the housing 1. When a hydraulic pump is used on a mini excavator, the refueling port 4 on one side of the housing 1 is used for refueling, and the oil outlet 5 on the other side is used for oil discharge, and the safety solenoid valve inside the housing 1 can lock the pilot function of the excavator when it does not need to move, thereby playing a safety role. After the oil outlet 5 on the surface of the shell 1 is connected to the external pipe, the sliding block 22 can be moved to move inside the slide rail 21. At this time, the reinforcement block 26 is at the upper end of the external pipe joint, and then the first bolt 23 is rotated to make the first bolt 23 drive the connecting block 24 to move downward. Then the connecting block 24 drives the reinforcing block 26 to move downward through the placement block 25 to squeeze and fix the joint of the external pipe. By using the reinforcement device 2, the pipe joint connected to the oil outlet 5 can be abutted and fixed to complete the reinforcement of the pipe position at the oil outlet 5 on the surface of the shell 1, so as to avoid the external pipe at the oil outlet 5 from loosening after being subjected to external force, thereby improving the use effect of the hydraulic pump.
[0030] Reference Figure 1-4As shown, this embodiment discloses that one side of the first bolt 23 is fixedly connected with a plurality of anti-sliding blocks 27, and the plurality of anti-sliding blocks 27 are arranged equidistantly on one side of the first bolt 23. By using the anti-sliding blocks 27, the friction with the operator is increased, so that the first bolt 23 is more easily rotated. A reinforcing block 28 is fixedly connected to one side of the placement block 25, and the side of the reinforcing block 28 away from the placement block 25 is fixedly connected to the connecting block 24. The reinforcing block 28 can be used to improve the connection strength between the moving block and the placement block 25, so as to avoid the occurrence of stress deformation at the connection between the placement block 25 and the moving block. A rubber pad 29 is fixedly connected to one side of the reinforcement block 26, and the size of the rubber pad 29 is adapted to the size of the reinforcement block 26. By using the rubber pad 29, the friction between the reinforcement block 26 and the contacted object is increased, so as to improve the use effect of the reinforcement block 26. The two sides of the sliding block 22 are fixedly connected with arc blocks 210, and the surfaces of the two arc blocks 210 are smooth. By using the arc block 210 , the friction between the sliding block 22 and the slide rail 21 is reduced, so that the sliding block 22 can move more easily inside the slide rail 21 .
[0031] Reference Figure 1-4 As shown, the present embodiment discloses that the connection assembly 3 includes a mounting block 31, one side of the mounting block 31 is fixedly connected to the housing 1, a second bolt 32 is threadedly inserted into the interior of the mounting block 31, one side of the second bolt 32 is threadedly connected to an L-shaped block 33, and one side of the L-shaped block 33 is fixedly connected to the slide rail 21. When using the reinforcement device 2, the slide rail 21 can be moved so that the L-shaped block 33 on one side of the slide rail 21 is inserted into the mounting block 31, and then the second bolt 32 is rotated so that the second bolt 32 passes through the mounting block 31 and reaches the inside of the L-shaped block 33 to complete the fixing of the position of the slide rail 21. By using the reinforcement device 2, the fixing of the position of the reinforcement device 2 can be quickly completed, so that the operator can use the reinforcement device 2 conveniently.
[0032] Reference Figure 1-4 As shown, the present embodiment discloses that a gasket 34 is abutted on one side of the second bolt 32, and one side of the gasket 34 is abutted on the mounting block 31. By using the gasket 34, the contact area between the second bolt 32 and the mounting block 31 is increased to prevent the second bolt 32 from loosening. Guide plates 35 are fixedly connected to both sides of the mounting block 31, and the guide plates 35 are obliquely arranged on both sides of the mounting block 31. By using the guide plates 35, the size of the entrance of the mounting block 31 is increased, so that the L-shaped block 33 can be easily inserted into the mounting block 31.
[0033] Working principle: When the hydraulic pump is used on the mini excavator, the refueling port 4 on one side of the housing 1 is used for refueling, and the oil outlet 5 on the other side is used for oil outlet. The safety solenoid valve inside the housing 1 can lock the pilot function of the excavator when it does not need to move, which plays a safety role. After the oil outlet 5 on the surface of the housing 1 is connected to the external pipeline, the sliding block 22 can be moved to move inside the slide rail 21. At this time, the reinforcement block 26 is at the upper end of the external pipeline joint, and then the first bolt 23 with the anti-sliding block 27 is rotated to make the first bolt 23 drive the connecting block 24 to move downward, and then the connecting block 24 drives the reinforcement block 26 with the rubber pad 29 to move downward through the placement block 25 to squeeze and fix the joint of the external pipeline. By using the reinforcement device 2, the pipe joint connected to the oil outlet 5 can be abutted and fixed to complete the reinforcement of the pipeline position at the oil outlet 5 on the surface of the housing 1, and the external pipeline at the oil outlet 5 can be prevented from loosening after being subjected to external force, thereby improving the use effect of the hydraulic pump.
[0034] When using the reinforcement device 2, the slide rail 21 can be moved so that the L-shaped block 33 on one side of the slide rail 21 is inserted into the mounting block 31 with the guide plate 35, and then the second bolt 32 is rotated so that the second bolt 32 passes through the mounting block 31 and reaches the inside of the L-shaped block 33 to complete the fixation of the position of the slide rail 21. By using the reinforcement device 2, the position of the reinforcement device 2 can be quickly fixed, so that the operator can use the reinforcement device 2 conveniently.
Claims
1. A hydraulic pump for a mini excavator, comprising a housing (1) and a connecting assembly (3), characterized in that: A refueling port (4) is provided on one side of the housing (1), and an oil outlet (5) is provided on a side of the housing (1) away from the refueling port (4). A reinforcing device (2) is provided on one side of the housing (1) by means of a connecting assembly (3). The reinforcing device (2) comprises a slide rail (21). A sliding block (22) is slidably connected to the interior of the slide rail (21). A first bolt (23) is rotatably connected to one side of the sliding block (22). A connecting block (24) is threadedly connected to one side of the first bolt (23). A placement block (25) is fixedly connected to one side of the connecting block (24). A reinforcing block (26) is fixedly connected to one side of the placement block (25). The size of the reinforcing block (26) matches the size of an external pipe at the oil outlet (5) on the surface of the housing (1).
2. A hydraulic pump for a mini excavator according to claim 1, characterized in that: A plurality of anti-sliding blocks (27) are fixedly connected to one side of the first bolt (23), and the plurality of anti-sliding blocks (27) are arranged at equal distances on one side of the first bolt (23).
3. A hydraulic pump for a mini excavator according to claim 2, characterized in that: A reinforcing block (28) is fixedly connected to one side of the placement block (25), and a side of the reinforcing block (28) away from the placement block (25) is fixedly connected to the connecting block (24).
4. A hydraulic pump for a mini excavator according to claim 3, characterized in that: A rubber pad (29) is fixedly connected to one side of the reinforcement block (26); the size of the rubber pad (29) is compatible with the size of the reinforcement block (26).
5. A hydraulic pump for a mini excavator according to claim 4, characterized in that: Arc blocks (210) are fixedly connected to both sides of the sliding block (22), and the surfaces of the two arc blocks (210) are smooth.
6. A hydraulic pump for a mini excavator according to claim 5, characterized in that: The connection assembly (3) comprises a mounting block (31), one side of the mounting block (31) being fixedly connected to the housing (1), a second bolt (32) being threadedly inserted into the interior of the mounting block (31), one side of the second bolt (32) being threadedly connected to an L-shaped block (33), and one side of the L-shaped block (33) being fixedly connected to the slide rail (21).
7. A hydraulic pump for a mini excavator according to claim 6, characterized in that: One side of the second bolt (32) is in contact with a gasket (34), and one side of the gasket (34) is in contact with the mounting block (31).
8. A hydraulic pump for a mini excavator according to claim 7, characterized in that: Guide plates (35) are fixedly connected to both sides of the mounting block (31), and the guide plates (35) are obliquely arranged on both sides of the mounting block (31).