Internal leakage detection device for hydraulic lifting system of intra-field vehicle
By designing a detection device including bottom plate, fixed block, vertical rod, displacement block, observation groove, pointer, telescopic adjustment rod and heavy object disc, the existing hydraulic cylinder internal leakage detection method is solved. The measurement is not accurate enough and the detection process is complicated. The problem is that efficient and accurate hydraulic cylinder leakage detection is achieved.
Patent Information
- Application Number
- CN202421049056.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-15
AI Technical Summary
The existing hydraulic cylinder leak detection method is measured by quantitative oil difference, which leads to inaccurate measurement and requires manual oil delivery, resulting in cumbersome detection process.
Design a detection device including a base plate, a fixing block, a vertical rod, a displacement block, an observation groove, a pointer, a telescopic adjustment rod and a heavy object disc, fix the hydraulic cylinder by a clamping assembly, and detect the piston rod using a heavy object disc and a telescopic adjustment rod. to determine whether there is an internal leakage in the hydraulic cylinder.
Through simple operation, the device can effectively improve the efficiency and effect of hydraulic cylinder leakage detection. It has a simple structure and convenient operation, reducing manual intervention and improving the accuracy of detection.
Smart Images
Figure CN222503205U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of hydraulic technology, and specifically relates to an internal leakage detection device for a hydraulic lifting system of an on-site vehicle. Background Art
[0002] With the continuous development of industrial technology, on-site vehicles such as forklifts and loaders are increasingly used in logistics, warehousing and other fields. As a key component of on-site vehicles, the hydraulic lifting system has a direct impact on the overall performance of the vehicle due to its working stability and reliability. However, due to the possibility of internal leakage during the use of the hydraulic lifting system, the system efficiency is reduced and even safety accidents may occur.
[0003] At present, the detection of internal leakage of hydraulic cylinders is to judge whether there is leakage inside the hydraulic cylinder through the difference of oil flowing through the inlet and outlet of the hydraulic cylinder. The oil difference measurement using a certain amount of oil leads to inaccurate measurement to a large extent. When performing multiple oil difference measurements, multiple manual oil delivery operations are required, which makes the measurement process cumbersome. Utility Model Content
[0004] The purpose of the utility model is to provide an internal leakage detection device for the hydraulic lifting system of a yard vehicle, which can improve the efficiency and effect of the internal leakage detection of the hydraulic cylinder.
[0005] The technical solutions adopted in this utility are as follows:
[0006] A device for detecting internal leakage of a hydraulic lifting system of an on-site vehicle comprises a base plate, a fixed block is fixed on the top of the base plate, a vertical rod is fixed on the top of the fixed block, a scale line is provided on one side of the vertical rod, a displacement block is provided on the outer wall of the vertical rod, a guide groove which is slidably connected to the vertical rod is provided on the outer wall of the displacement block, an observation groove which is connected to the guide groove is provided on one side of the displacement block, a pointer is provided on the inner side of the observation groove, a telescopic adjustment rod is provided on one side of the displacement block, a fixing clamp is provided on the other end of the telescopic adjustment rod, a mounting frame is fixed on the outer wall of the telescopic adjustment rod and located on one side of the fixing clamp, a weight plate is provided on the outer wall of the mounting frame and located above the fixing clamp, and a clamping assembly which can fix the hydraulic cylinder is provided on the top of the base plate and located on one side of the fixing block.
[0007] Furthermore, a magnifying glass is provided on the inner side of the observation slot and on one side of the pointer.
[0008] Furthermore, the clamping assembly includes two supporting ears arranged on the top of the base plate, a double-headed screw is rotatably installed between the outer walls of the two supporting ears, a limiting block is fixed in the middle of the top of the base plate corresponding to the double-headed screw, and the double-headed screw is rotatably connected to the limiting block, the outer wall of the double-headed screw and the two sides of the limiting block are threadedly connected with moving blocks, and splints are symmetrically arranged on one side of the two moving blocks.
[0009] Furthermore, a guide rod slidably connected to the moving block is fixed between the outer walls of the two supporting ears.
[0010] The technical effects achieved by this utility model are:
[0011] The utility model discloses a device for detecting internal leakage of a hydraulic lifting system of a vehicle in a yard. The cylinder body is fixed by a clamping assembly, so that the piston rod is extended to the maximum stroke, the fixing clamp clamps the piston rod, and the bottom of the weight plate is aligned with the top of the piston rod. When the hydraulic cylinder has internal leakage, the piston rod will contract and drive the moving block to move. When the hydraulic cylinder has no internal leakage, the moving block will not move. The device has a simple structure and is easy to operate, thereby improving the efficiency and effect of detecting internal leakage of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0013] Figure 2 It is a schematic diagram of the local three-dimensional structure of the utility model.
[0014] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0015] 1. Base plate; 2. Fixed block; 3. Vertical rod; 4. Scale line; 5. Displacement block; 6. Observation slot; 7. Pointer; 8. Telescopic adjustment rod; 9. Fixed clamp; 10. Mounting frame; 11. Weight plate; 12. Support ear; 13. Double-headed screw; 14. Moving block; 15. Clamp; 16. Guide rod; 17. Magnifying glass. DETAILED DESCRIPTION
[0016] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.
[0017] like Figure 1-2As shown, a leakage detection device for the hydraulic lifting system of a vehicle in a yard comprises a base plate 1, a fixed block 2 is fixed on the top of the base plate 1, a vertical rod 3 is fixed on the top of the fixed block 2, a scale line 4 is arranged on one side of the vertical rod 3, a displacement block 5 is arranged on the outer wall of the vertical rod 3, a guide groove slidably connected to the vertical rod 3 is opened through the outer wall of the displacement block 5, an observation groove 6 connected to the guide groove is opened on one side of the displacement block 5, a pointer 7 is arranged on the inner side of the observation groove 6, a telescopic adjustment rod 8 is arranged on one side of the displacement block 5, a fixing clamp 9 is arranged on the other end of the telescopic adjustment rod 8, a mounting frame 10 is fixed on the outer wall of the telescopic adjustment rod 8 and located on one side of the fixing clamp 9, a weight plate 11 is arranged on the outer wall of the mounting frame 10 and located above the fixing clamp 9, a clamping assembly for fixing the hydraulic cylinder is arranged on the top of the base plate 1 and located on one side of the fixed block 2, the structure is simple, and the operation is convenient. For the convenience of operation, the cylinder body can be fixed by the clamping assembly, and then the piston rod on the hydraulic cylinder is extended to the maximum stroke to ensure that the hydraulic cylinder is in a stationary state, without load, and the hydraulic system has been turned off, and the fixing clamp 9 is clamped on the piston rod to make the bottom of the weight plate 11 contact with the top of the piston rod, and then a counterweight is placed on the weight plate 11, and a stone or an iron block can be placed. When the piston and the inner wall of the cylinder leak, the piston rod will contract, and the piston rod will drive the displacement block 5 to move through the telescopic adjustment rod 8. When there is no leakage, the displacement block 5 will not move; a magnifying glass 17 is provided on the inner side of the observation groove 6 and on one side of the pointer 7, so that the scale line 4 corresponding to the pointer 7 can be clearly seen through the magnifying glass 17, so that it can be intuitively observed whether the piston rod moves, thereby judging whether the piston and the inner wall of the cylinder are worn and leaking.
[0018] like Figure 1 As shown, the clamping assembly includes two supporting ears 12 arranged on the top of the base plate 1, and a double-headed screw 13 is rotatably installed between the outer walls of the two supporting ears 12. A limited block is fixed in the middle of the double-headed screw 13 corresponding to the top of the base plate 1, and the double-headed screw 13 is rotatably connected with the limited block. The outer wall of the double-headed screw 13 and the two sides of the limited block are threadedly connected with a moving block 14, and one side of the two moving blocks 14 is symmetrically provided with a clamping plate 15. By rotating the double-headed screw 13, the two moving blocks 14 are driven to move, and the moving block 14 drives the clamping plate 15 to clamp and fix the cylinder body of the hydraulic cylinder, thereby improving the stability of the internal leakage of the hydraulic cylinder, which is more practical; a guide rod 16 slidably connected to the moving block 14 is fixed between the outer walls of the two supporting ears 12, so that the movement of the two moving blocks 14 is more stable; one end of the double-headed screw 13 passes through the outer wall of the supporting ear 12 and is fixed with a rotating wheel, and the double-headed screw 13 can be easily rotated by the rotating wheel, which is more labor-saving and perfect.
[0019] like Figure 1 As shown, the inner clamping portion of the fixing block 2 is provided with an anti-slip protrusion, which can stably clamp the piston rod that leaks out of the cylinder body, thereby improving the firmness of the clamping and being relatively perfect.
[0020] The working principle of the utility model is: by rotating the double-headed screw rod 13, the two moving blocks 14 are driven to move, and the moving block 14 drives the clamping plate 15 to clamp and fix the cylinder body of the hydraulic cylinder, and then the piston rod on the hydraulic cylinder is extended to the maximum stroke to ensure that the hydraulic cylinder is in a static state, without load, and the hydraulic system has been turned off, and the fixing clamp 9 is clamped on the piston rod to make the bottom of the weight plate 11 contact with the top of the piston rod, and then a counterweight is placed on the weight plate 11, and a stone or an iron block can be placed. When the piston and the inner wall of the cylinder leak, the piston rod will shrink, and the piston rod will drive the displacement block 5 to move through the telescopic adjustment rod 8. When there is no leakage, the displacement block 5 will not move.
[0021] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.
Claims
1. An internal leakage detection device for a hydraulic lifting system of a vehicle in a yard, characterized by: The invention comprises a bottom plate (1), a fixing block (2) is fixed on the top of the bottom plate (1), a vertical rod (3) is fixed on the top of the fixing block (2), a scale line (4) is arranged on one side of the vertical rod (3), a displacement block (5) is arranged on the outer wall of the vertical rod (3), a guide groove is provided through the outer wall of the displacement block (5) and is slidably connected to the vertical rod (3), an observation groove (6) is provided on one side of the displacement block (5) and is connected to the guide groove, and a A pointer (7), a telescopic adjustment rod (8) is provided on one side of the displacement block (5), a fixing clamp (9) is provided on the other end of the telescopic adjustment rod (8), a mounting frame (10) is fixed on the outer wall of the telescopic adjustment rod (8) and located on one side of the fixing clamp (9), a weight plate (11) is provided on the outer wall of the mounting frame (10) and located above the fixing clamp (9), and a clamping assembly capable of fixing the hydraulic cylinder is provided on the top of the base plate (1) and located on one side of the fixing block (2).
2. The internal leakage detection device for the hydraulic lifting system of a vehicle in a yard according to claim 1 is characterized by: A magnifying glass (17) is provided inside the observation groove (6) and on one side of the pointer (7).
3. The internal leakage detection device for the hydraulic lifting system of a vehicle in a yard according to claim 1 is characterized in that: The clamping assembly comprises a base plate (1) having two supporting ears (12) arranged on the top, a double-headed screw (13) rotatably mounted between the outer walls of the two supporting ears (12), a limiting block fixed in the middle of the double-headed screw (13) corresponding to the top of the base plate (1), and the double-headed screw (13) is rotatably connected to the limiting block, the outer wall of the double-headed screw (13) and located on both sides of the limiting block are threadedly connected with moving blocks (14), and clamping plates (15) are symmetrically arranged on one side of the two moving blocks (14).
4. The internal leakage detection device for the hydraulic lifting system of a vehicle in a yard according to claim 3 is characterized by: A guide rod (16) slidably connected to the moving block (14) is fixed between the outer walls of the two supporting ears (12).
5. The internal leakage detection device for the hydraulic lifting system of a vehicle in a yard according to claim 3 is characterized by: One end of the double-headed screw rod (13) passes through the outer wall of the supporting ear (12) and is fixed with a rotating wheel.
6. The internal leakage detection device for the hydraulic lifting system of a vehicle in a yard according to claim 1 is characterized in that: The inner clamping portion of the fixing block (2) is provided with an anti-slip protrusion.