Hydraulic cylinder multi-station synchronous testing device
By designing a multi-station synchronous testing device for hydraulic cylinders, the test station is increased by using positioning seats, push seats, oil guide pipes and fixed branch pipes, and adapting to hydraulic cylinders of different sizes through structures such as step-type first positioning grooves, the existing technology is solved The problem of low testing efficiency and small application scope has been achieved, and efficient and extensive hydraulic cylinder testing has been achieved.
Patent Information
- Application Number
- CN202420058029.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-10
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-01-10
AI Technical Summary
The existing hydraulic cylinder test devices have few test stations, and it is impossible to effectively test hydraulic cylinders with large differences in outer diameter and length, resulting in low testing efficiency and small application range.
Design a hydraulic cylinder multi-station synchronous testing device, which adds a test station by setting a positioning seat, push seat, oil guide pipe and fixed branch pipe; and passes through a stepped first positioning groove, guide rod, limit sleeve and return spring. Adapt to hydraulic cylinders with different outer diameters and lengths.
It realizes synchronous testing of multiple hydraulic cylinders at one time, improves testing efficiency and greatly increases the scope of application of the test device.
Smart Images
Figure CN222479126U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic cylinders, and more specifically to a multi-station synchronous testing device for hydraulic cylinders. Background Art
[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion or swinging motion.
[0003] At present, during the production process of hydraulic cylinders, the fatigue performance of hydraulic cylinders needs to be tested by a testing device. However, the testing device has few testing stations, which reduces the test efficiency. It is also unable to test hydraulic cylinders with large differences in outer diameter and length, which reduces the scope of application of the testing device.
[0004] For example, announcement number CN215370426U discloses a hydraulic cylinder testing device, which includes: a base plate, a guide groove arranged on the base plate, a sliding seat slidably matched with the guide groove, a support seat fixedly arranged on the base plate, and a hydraulic cylinder to be tested; wherein the support seat includes: a first support seat and a second support seat.
[0005] It can be seen from the above-mentioned public scheme that the positions of the two support seats are fixed, so that the distance between them is fixed, so only hydraulic cylinders within a certain length range can be tested. At the same time, the sliding seat and support seat set can only test hydraulic cylinders within a certain range of outer diameters, which narrows the application scope of the test device. Moreover, the test device can only test two hydraulic cylinders at most, which reduces the test efficiency. Utility Model Content
[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a multi-station synchronous testing device for a hydraulic cylinder. The multi-station synchronous testing device for a hydraulic cylinder can increase the testing stations of the testing device by means of a positioning seat, a pushing seat, an oil guide pipe and a fixed branch pipe, so as to facilitate the synchronous testing of multiple hydraulic cylinders at one time, thereby greatly improving the working efficiency of the testing device. In addition, by means of the stepped first positioning groove, guide rod, limit sleeve and reset spring, the testing device can conveniently test hydraulic cylinders of different outer diameters and different lengths, thereby greatly increasing the scope of application of the testing device.
[0007] To solve the above problems, the utility model adopts the following technical solutions.
[0008] A hydraulic cylinder multi-station synchronous test device comprises a test bench, wherein a positioning seat is fixedly connected to the surface of the test bench, an oil guide pipe is fixedly connected to one side of the positioning seat, a connecting pipe is provided at one end of the oil guide pipe, a fixed branch pipe is fixedly connected to the surface of the oil guide pipe, a plurality of first positioning grooves are provided on the other side of the positioning seat, a symmetrical guide rod is fixedly connected to the side of the test bench, a sliding sleeve is slidably sleeved on the surface of the guide rod, a pushing seat is fixedly connected to the surface of the sliding sleeve, a plurality of second positioning grooves are provided on the side of the pushing seat, an adsorption block is fixedly inlaid on the inner wall of the second positioning groove, a reset spring is sleeved on the outer side of the guide rod, and one end of the reset spring is contact-connected with a limited sleeve. The hydraulic cylinder multi-station synchronous test device can increase the test stations of the test device by providing the positioning seat, the pushing seat, the oil guide pipe and the fixed branch pipe, so as to facilitate synchronous testing of multiple hydraulic cylinders at one time, thereby greatly improving the working efficiency of the test device, and by providing the stepped first positioning groove, the guide rod, the limit sleeve and the reset spring, so as to facilitate the test device to test hydraulic cylinders with different outer diameters and different lengths, thereby greatly increasing the application scope of the test device.
[0009] Furthermore, one end of the limit sleeve is provided with an axially penetrating through hole, and the inner wall of the through hole is in contact and connected with the surface of the guide rod. A positioning rod is inserted into the side of the limit sleeve, and the surface of the positioning rod is provided with an external thread, so that the limit sleeve has the function of adjusting the position along the guide rod.
[0010] Furthermore, the first positioning groove is in a stepped shape, the first positioning groove and the second positioning groove are the same in number and are concentric and coaxial, and the inner wall of the first positioning groove is connected with an opening, which facilitates the hydraulic cylinder oil pipe to be exposed and connected to the fixed branch pipe.
[0011] Furthermore, the guide rod is U-shaped and made of stainless steel. The side of the guide rod is provided with equidistantly distributed threaded holes. The guide rod ensures the sliding stability of the push seat and avoids wear on the surface of the test bench.
[0012] Furthermore, the number of the fixed branch pipes is the same as the number of the openings, a control valve is provided on the surface of the fixed branch pipe, and the fixed branch pipe can synchronously control multiple hydraulic cylinders to perform telescopic testing through an oil guide pipe.
[0013] Furthermore, a bushing is sleeved on the side of the sliding sleeve, and a sliding hole is provided at the center of the bushing.
[0014] Compared with the prior art, the advantages of the present invention are:
[0015] (1) This solution can increase the test stations of the test device by setting the positioning seat, the pushing seat, the oil guide pipe and the fixed branch pipe, so as to facilitate the simultaneous testing of multiple hydraulic cylinders at one time, thereby greatly improving the working efficiency of the test device.
[0016] (2) This solution provides a stepped first positioning groove, a guide rod, a limit sleeve and a return spring, which makes it easier for the test device to test hydraulic cylinders of different outer diameters and lengths, thereby greatly increasing the scope of application of the test device. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a cross-sectional view of the positioning seat of the utility model;
[0019] Figure 3 It is a side view of the push seat structure of the utility model.
[0020] Description of the numbers in the figure:
[0021] 1 test bench, 11 guide rod, 2 positioning seat, 21 first positioning groove, 22 opening, 3 oil guide pipe, 31 connecting pipe, 32 fixed branch pipe, 33 control valve, 4 push seat, 41 sliding sleeve, 42 bushing, 43 sliding hole, 44 second positioning groove, 45 adsorption block, 5 limit sleeve, 51 positioning rod, 6 return spring. DETAILED DESCRIPTION
[0022] 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.
[0023] Example 1
[0024] See also Figure 1-3A multi-station synchronous testing device for a hydraulic cylinder comprises a test bench 1, a positioning seat 2 is fixedly connected to the surface of the test bench 1, an oil guide pipe 3 is fixedly connected to one side of the positioning seat 2, a connecting pipe 31 is provided at one end of the oil guide pipe 3, and the connecting pipe 31 is connected to a hydraulic oil pump to facilitate the control of the hydraulic oil in and out of the hydraulic cylinder for telescopic testing. It belongs to the prior art, and its composition structure and working principle are well known to those skilled in the art, so they will not be described in detail here. A fixed branch pipe 32 is fixedly connected to the surface of the oil guide pipe 3, and a plurality of first positioning grooves 21 are provided on the other side of the positioning seat 2. The first positioning grooves 21 are used to fix one end of the hydraulic cylinder. The side of the test bench 1 is fixedly connected with symmetrical The guide rod 11 has a sliding sleeve 41 slidably sleeved on its surface, a bushing 42 is sleeved on the side of the sliding sleeve 41, a sliding hole 43 is provided in the center of the bushing 42, a push seat 4 is fixedly connected to the surface of the sliding sleeve 41, a plurality of second positioning grooves 44 are provided on the side of the push seat 4, the second positioning groove 44 is used to position one end of the movable rod of the hydraulic cylinder, an adsorption block 45 is fixedly inlaid on the inner wall of the second positioning groove 44, the adsorption block 45 is made of a strong magnet, which ensures the positioning stability of one end of the movable rod of the hydraulic cylinder, a reset spring 6 is sleeved on the outer side of the guide rod 11, the reset spring 6 can automatically reset the push seat 4 through the elastic force, and one end of the reset spring 6 is in contact with the limited sleeve 5.
[0025] The first positioning groove 21 is in a stepped shape. The number of the first positioning grooves 21 and the second positioning grooves 44 is the same, and they are concentric and coaxial. The inner wall of the first positioning groove 21 is connected with an opening 22. The opening 22 facilitates the hydraulic cylinder oil pipe to be exposed and connected to the fixed branch pipe 32. The number of the fixed branch pipes 32 is the same as the number of the openings 22. A control valve 33 is provided on the surface of the fixed branch pipe 32. The fixed branch pipe 32 can synchronously control multiple hydraulic cylinders to perform telescopic tests through the oil guide pipe 3.
[0026] In this embodiment, by setting the positioning seat 2, the pushing seat 4, the oil guide pipe 3 and the fixed branch pipe 32, the test stations of the test device can be increased, which is convenient for simultaneous testing of multiple hydraulic cylinders at one time, greatly improving the working efficiency of the test device.
[0027] Example 2
[0028] See also Figure 1-3A multi-station synchronous testing device for a hydraulic cylinder comprises a test bench 1, a positioning seat 2 is fixedly connected to the surface of the test bench 1, an oil guide pipe 3 is fixedly connected to one side of the positioning seat 2, a connecting pipe 31 is provided at one end of the oil guide pipe 3, and the connecting pipe 31 is connected to a hydraulic oil pump to facilitate the control of the hydraulic oil in and out of the hydraulic cylinder for telescopic testing. It belongs to the prior art, and its composition structure and working principle are well known to those skilled in the art, so they will not be described in detail here. A fixed branch pipe 32 is fixedly connected to the surface of the oil guide pipe 3, and a plurality of first positioning grooves 21 are provided on the other side of the positioning seat 2. The first positioning grooves 21 are used to fix one end of the hydraulic cylinder. The side of the test bench 1 is fixedly connected with symmetrical The guide rod 11 has a sliding sleeve 41 slidably sleeved on its surface, a bushing 42 is sleeved on the side of the sliding sleeve 41, a sliding hole 43 is provided in the center of the bushing 42, a push seat 4 is fixedly connected to the surface of the sliding sleeve 41, a plurality of second positioning grooves 44 are provided on the side of the push seat 4, the second positioning groove 44 is used to position one end of the movable rod of the hydraulic cylinder, an adsorption block 45 is fixedly inlaid on the inner wall of the second positioning groove 44, the adsorption block 45 is made of a strong magnet, which ensures the positioning stability of one end of the movable rod of the hydraulic cylinder, a reset spring 6 is sleeved on the outer side of the guide rod 11, the reset spring 6 can automatically reset the push seat 4 through the elastic force, and one end of the reset spring 6 is in contact with the limited sleeve 5.
[0029] One end of the limit sleeve 5 is provided with an axially penetrating through hole, and the inner wall of the through hole is in contact with the surface of the guide rod 11. A positioning rod 51 is inserted into the side of the limit sleeve 5, and the surface of the positioning rod 51 is provided with an external thread, so that the limit sleeve 5 has the function of adjusting the position along the guide rod 11. The shape of the guide rod 11 is U-shaped, and the guide rod 11 is made of stainless steel. The side of the guide rod 11 is provided with equidistantly distributed threaded holes. The guide rod 11 ensures the sliding stability of the push seat 4 and avoids wear on the surface of the test bench 1.
[0030] In this embodiment, the stepped first positioning groove 21, guide rod 11, limit sleeve 5 and return spring 6 are provided, so that the testing device can test hydraulic cylinders of different outer diameters and lengths, thereby greatly increasing the application range of the testing device.
[0031] When testing the hydraulic cylinder multi-station synchronous testing device, the push seat 4 is first moved, and then one end of the hydraulic cylinder is sleeved with the first positioning groove 21 to the left, and the oil pipe is extended out of the first positioning groove 21 through the opening 22. Then the push seat 4 is released, so that the second positioning groove 44 is sleeved and adsorbed with one end of the hydraulic cylinder piston rod to the left, and then the oil pipes of each hydraulic cylinder are connected to the corresponding fixed branch pipe 32. Then the control valve 33 of each fixed branch pipe 32 is opened, and then the hydraulic oil pump is started, so that each hydraulic cylinder synchronously feeds and returns oil through the oil guide pipe 3 and the fixed branch pipe 32, thereby performing telescopic movement, and then fatigue performance tests are performed on multiple hydraulic cylinders synchronously. By setting the positioning seat 2, the push seat 4, the oil guide pipe 3 and the fixed branch pipe 32, the test stations of the testing device can be increased, which is convenient for synchronous testing of multiple hydraulic cylinders at one time, which greatly improves the working efficiency of the testing device. In addition, by setting the stepped first positioning groove 21, the guide rod 11, the limit sleeve 5 and the reset spring 6, it is convenient for the testing device to test hydraulic cylinders with different outer diameters and different lengths, which greatly increases the scope of application of the testing device.
[0032] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.
Claims
1. A hydraulic cylinder multi-station synchronous testing device, comprising a test bench (1), characterized in that: The surface of the test bench (1) is fixedly connected to a positioning seat (2), one side of the positioning seat (2) is fixedly connected to an oil guide pipe (3), one end of the oil guide pipe (3) is provided with a connecting pipe (31), the surface of the oil guide pipe (3) is fixedly connected to a fixed branch pipe (32), the other side of the positioning seat (2) is provided with a plurality of first positioning grooves (21), the side of the test bench (1) is fixedly connected to a symmetrical guide rod (11), the surface of the guide rod (11) is slidably sleeved with a sliding sleeve (41), the surface of the sliding sleeve (41) is fixedly connected to a pushing seat (4), the side of the pushing seat (4) is provided with a plurality of second positioning grooves (44), the inner wall of the second positioning groove (44) is fixedly inlaid with an adsorption block (45), the outer side of the guide rod (11) is sleeved with a return spring (6), one end of the return spring (6) is contact-connected with a limiting sleeve (5).
2. A hydraulic cylinder multi-station synchronous testing device according to claim 1, characterized in that: One end of the limiting sleeve (5) is provided with an axially penetrating through hole, and the inner wall of the through hole is in contact with the surface of the guide rod (11); a positioning rod (51) is inserted into the side of the limiting sleeve (5), and the surface of the positioning rod (51) is provided with an external thread.
3. A hydraulic cylinder multi-station synchronous testing device according to claim 1, characterized in that: The first positioning groove (21) is in a stepped shape, the first positioning groove (21) and the second positioning groove (44) are the same in number and are concentric and coaxial, and the inner wall of the first positioning groove (21) is connected to an opening (22).
4. A hydraulic cylinder multi-station synchronous testing device according to claim 1, characterized in that: The guide rod (11) is in a U-shape and is made of stainless steel. The side surface of the guide rod (11) is provided with threaded holes distributed at equal intervals.
5. The multi-station synchronous testing device for hydraulic cylinders according to claim 3, characterized in that: The number of the fixed branch pipes (32) is the same as the number of the openings (22), and a control valve (33) is provided on the surface of the fixed branch pipe (32).
6. The multi-station synchronous testing device for hydraulic cylinders according to claim 1, characterized in that: A bushing (42) is sleeved on the side of the sliding sleeve (41), and a sliding hole (43) is provided at the center of the bushing (42).