Damper test oil cylinder with guiding function
By adding a guide mechanism and a velocity displacement sensor to the damper test cylinder, the problem of the damper and test cylinder rotating during movement was solved, thus achieving accuracy and reliability in damper performance testing.
Patent Information
- Application Number
- CN202511377054.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2026-01-20
AI Technical Summary
The damper and test cylinder may rotate during operation, which may affect the accuracy of the damper performance test.
A guide damper test cylinder was designed. By adding a guide mechanism and a speed-displacement sensor to the test cylinder, the rotation of the cylinder is limited and the motion speed and displacement are accurately measured.
This improves the accuracy and reliability of damper performance testing, ensuring the correctness of test results.
Smart Images
Figure CN121363565A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the field of testing and electromechanical technology, and particularly relates to a guided damper test oil cylinder. BACKGROUND
[0002] At present, dampers are widely used in buildings, bridges, mechanical equipment, pipelines and the like, and are commonly used to achieve anti-seismic and vibration reduction for external equipment such as pipelines. In order to ensure the performance of the damper, the damper must be tested for performance, including factory performance testing, and for important use occasions, the damper after service also needs to be regularly tested for performance, such as nuclear power pipeline dampers and equipment dampers, to fully ensure the safe operation of the related equipment. The damper is usually tested for performance by a damper performance test bench, which drives the damper to act by controlling the movement of a test oil cylinder, simulates the effect of external equipment such as a pipeline on the damper, and measures the relevant performance of the damper, including low-speed friction resistance, lock-up speed, and post-locking speed under rated load and the like. During the movement of the damper and the test oil cylinder, there is a possibility of rotation, and once the damper and the test oil cylinder rotate during the test, it will seriously affect the correctness of the damper performance test. SUMMARY
[0003] The present application aims to provide a guided damper test oil cylinder, which solves the problem of rotation of the damper and the test oil cylinder during movement, affecting the correctness of the damper performance test.
[0004] The technical solution adopted by the present application to solve the technical problem is: a guided damper test oil cylinder, wherein the test oil cylinder comprises: a test oil cylinder provided with a front end cover and a rear end cover on both sides, respectively, and provided with a vice piston rod at one end of the test oil cylinder; a guide sleeve is connected to the rear end cover of the test oil cylinder at one end and is sleeved on the outer periphery of the vice piston rod; a guide block is inserted into the guide sleeve and is installed on the other end of the vice piston rod; a guide sleeve end cover is installed at the other end of the guide sleeve, and a speed displacement sensor is installed on the guide sleeve end cover.
[0005] The guided damper test oil cylinder described above, wherein a connecting thread is machined on one side of the main piston rod at one end of the test oil cylinder, and the test pin seat and the pin shaft are connected through the connecting thread; the front end cover of the test oil cylinder is provided with a mounting flange, and the damper test oil cylinder is mounted on the damper test bench rack through the mounting flange.
[0006] The guided damper test oil cylinder described above, wherein a plurality of rear end cover threaded holes are machined on the right end face of the rear end cover of the test oil cylinder; guide sleeve left flanges and guide sleeve right flanges are provided at both ends of the guide sleeve, and a plurality of uniformly distributed guide sleeve left flange mounting holes and guide sleeve right flange mounting holes are machined on the circumferences of the two flanges, respectively.
[0007] The guided damper test oil cylinder has the following beneficial effects: on the one hand, the guide sleeve is installed on the side end face of the rear end cover of the test oil cylinder through the guide sleeve left flange and mounting screws; and on the other hand, the guide sleeve end cover is installed on the side end face of the guide sleeve right flange through mounting screws.
[0008] The guided damper test oil cylinder has the following beneficial effects: on the one hand, the guide sleeve is installed on the side end face of the rear end cover of the test oil cylinder through the guide sleeve left flange and mounting screws; and on the other hand, the guide sleeve end cover is installed on the side end face of the guide sleeve right flange through mounting screws.
[0009] The guided damper test oil cylinder has the following beneficial effects: on the one hand, the guide sleeve is installed on the side end face of the rear end cover of the test oil cylinder through the guide sleeve left flange and mounting screws; and on the other hand, the guide sleeve end cover is installed on the side end face of the guide sleeve right flange through mounting screws.
[0010] The guided damper test oil cylinder has the following beneficial effects: on the one hand, the guide sleeve is installed on the side end face of the rear end cover of the test oil cylinder through the guide sleeve left flange and mounting screws; and on the other hand, the guide sleeve end cover is installed on the side end face of the guide sleeve right flange through mounting screws.
[0011] The guided damper test oil cylinder has the following beneficial effects: on the one hand, the guide sleeve is installed on the side end face of the rear end cover of the test oil cylinder through the guide sleeve left flange and mounting screws; and on the other hand, the guide sleeve end cover is installed on the side end face of the guide sleeve right flange through mounting screws.
[0012] The guided damper test oil cylinder has the following beneficial effects: on the one hand, the guide sleeve is installed on the side end face of the rear end cover of the test oil cylinder through the guide sleeve left flange and mounting screws; and on the other hand, the guide sleeve end cover is installed on the side end face of the guide sleeve right flange through mounting screws.
[0013] The guided damper test oil cylinder has the following beneficial effects: on the one hand, the guide sleeve is installed on the side end face of the rear end cover of the test oil cylinder through the guide sleeve left flange and mounting screws; and on the other hand, the guide sleeve end cover is installed on the side end face of the guide sleeve right flange through mounting screws.
[0014] The guided damper test oil cylinder has the following beneficial effects: on the one hand, the guide sleeve is installed on the side end face of the rear end cover of the test oil cylinder through the guide sleeve left flange and mounting screws; and on the other hand, the guide sleeve end cover is installed on the side end face of the guide sleeve right flange through mounting screws. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 Figure 1 shows the overall structure of a guided damper test oil cylinder according to the present application.
[0016] Figure 2 Figure 2 shows the front view of the guide sleeve of a guided damper test oil cylinder according to the present application.
[0017] Figure 3 Figure 3 shows the left view of the guide sleeve of a guided damper test oil cylinder according to the present application.
[0018] Figure 4 Figure 4 shows the front view of the guide block of a guided damper test oil cylinder according to the present application.
[0019] Figure 5 Figure 5 shows the cross-sectional view of the guide block of a guided damper test oil cylinder according to the present application.
[0020] Figure 6 Figure 6 shows the end cap of the guide sleeve of a guided damper test oil cylinder according to the present application.
[0021] BRIEF DESCRIPTION OF THE DRAWINGS: 1. Oil cylinder; 11. Main piston rod; 111. Connection thread; 12. Front end cap; 13. Rear end cap; 131. Rear end cap threaded hole; 14. Auxiliary piston rod; 141. Auxiliary piston rod center hole; 142. Auxiliary piston rod threaded hole; 15. Main cylinder body; 2 Guide sleeve; 21. Guide sleeve left flange; 211. Guide sleeve left flange mounting hole; 22. Guide tube; 221. Left guide groove; 222. Right guide groove; 23. Guide sleeve right flange; 231. Guide sleeve right flange mounting hole; 3. Guide block; 31. Guide block upper guide boss; 32. Guide block main body; 33. Guide block lower guide boss; 34. Guide block magnetic ring mounting threaded hole; 35. Guide block sensor through hole; 36. Guide block screw mounting hole; 37. Guide block screw counterbore; 4. Magnetic ring; 5. Washer; 6. Guide sleeve end cap; 61. Guide sleeve end cap mounting boss; 62. Guide sleeve end cap sensor mounting threaded hole; 63. Guide sleeve end cap mounting threaded hole; 7. Speed displacement sensor. DETAILED DESCRIPTION
[0022] In order to solve the problem of damper and test oil cylinder rotation during movement, affecting the correctness of damper performance testing, the present application provides a guided damper test oil cylinder. As shown in the figure, the device comprises: a test oil cylinder 1, a guide sleeve 2, a guide block 3, a magnetic ring 4, a washer 5, a guide sleeve end cap 6, and a speed displacement sensor 7. Figures 1-6
[0023] The test oil cylinder 1 comprises a main piston rod 11, a front end cover 12, a rear end cover 13, a secondary piston rod 14 and a main cylinder body 15. The front end cover 12 and the rear end cover 13 are arranged on the two sides of the test oil cylinder 1 respectively, the main piston rod 11 and the secondary piston rod 14 are arranged on the two ends of the test oil cylinder 1 respectively, the left end of the main piston rod 11 is provided with a connecting thread 111, the test pin seat and the pin shaft are connected through the connecting thread 111, and reliable connection is formed with the measured damper. A plurality of secondary piston rod threaded holes 142 are formed on the side end face of the secondary piston rod 14; the front end cover 12 of the test oil cylinder 1 is provided with a mounting flange, and the damper test oil cylinder is mounted on the damper test bench rack through the mounting flange. A plurality of rear end cover threaded holes 131 are formed on the side end face of the rear end cover 13 of the test oil cylinder 1.
[0024] The guide sleeve 2 comprises a guide sleeve left flange 21 and a guide sleeve right flange 23 arranged on the two ends thereof, and a guide pipe 22 arranged in the middle of the guide sleeve 2. A plurality of uniformly distributed guide sleeve left flange mounting holes 211 are formed on the circumference of the guide sleeve left flange 21, left and right sides of the middle of the guide pipe 22 are respectively provided with left and right guide grooves 221 and 222, and a plurality of uniformly distributed guide sleeve right flange mounting holes 231 are formed on the circumference of the guide sleeve right flange 23. The guide sleeve left flange 21 and the left end of the guide pipe 22 are reliably welded, and the guide sleeve right flange 23 and the right end of the guide pipe 22 are reliably welded.
[0025] The guide block 3 is provided with a guide block upper guide boss 31 on one side, a guide block lower guide boss 33 on the other side, and a circular arc-shaped guide block main body 32 in the middle. A guide block sensor through hole 35 is formed in the center of the guide block 3, a plurality of uniformly distributed guide block magnetic ring mounting threaded holes 34 are formed on the outer circumference of the guide block sensor through hole 35, and a plurality of uniformly distributed guide block screw mounting holes 36 and guide block screw counterbores 37 are formed on the outer circumference of the guide block magnetic ring mounting threaded holes 34. The material of the guide block 3 is copper, aluminum, stainless steel or non-magnetic material such as nylon and plastic.
[0026] The guide sleeve end cover 6 is provided with a guide sleeve end cover mounting boss 61 on one side, a guide sleeve end cover sensor mounting threaded hole 62 is formed in the center of the guide sleeve end cover 6, and a plurality of uniformly distributed guide sleeve end cover mounting threaded holes 63 are formed on the outer circumference of the guide sleeve end cover 6; the guide sleeve end cover mounting boss 61 is inserted into the right end of the guide pipe 22 and fixedly connected through mounting screws.
[0027] One end of the guide sleeve 2 is connected with the rear end cover 13 of the test oil cylinder 1 through the guide sleeve left flange 21 and is sleeved on the outer periphery of the auxiliary piston rod 14; the guide block 3 is inserted into the guide sleeve 2 and is installed on the other end of the auxiliary piston rod 14 through the guide block mounting screw; when the guide block 3 is inserted into the guide sleeve 2, the guide block upper guide boss 31 on one side of the guide block is embedded into the left guide groove 221, and the guide block lower guide boss 33 on the other side of the guide block is embedded into the right guide groove 222. At this time, the guide block 3 and the guide sleeve 2 form the test oil cylinder guide structure. The magnetic ring 4 and the gasket 5 are installed on the other side end face of the guide block 3 through the magnetic ring mounting screw. The speed displacement sensor 7 is installed in the guide sleeve end cover mounting screw hole 63, and the measuring rod of the speed displacement sensor 7 passes through the guide sleeve end cover mounting screw hole 63, the center hole of the gasket 5 and the center hole of the magnetic ring 4 and is inserted into the auxiliary piston rod center hole 141.
[0028] When the damper performance test is carried out by using the damper performance test table, the test oil cylinder drives the damper to move through the main piston rod 11, the pin seat and the pin shaft on one hand, and the auxiliary piston rod 14 drives the guide block 3 to slide in the left guide groove 221 and the right guide groove 222 on the other hand, thereby limiting the rotation of the auxiliary piston rod 14. At the same time, the auxiliary piston rod 14 drives the magnetic ring 4 to form relative movement with the measuring rod of the speed displacement sensor 7 through the guide block 3, and the speed displacement sensor 7 can obtain the movement speed and displacement signals of the test oil cylinder, that is, the movement speed and displacement signals of the measured damper.
[0029] It should be noted that the combination modes of the technical features in the embodiments of the present application are not limited to the combination modes described in the embodiments of the present application or the combination modes described in the specific embodiments, and all the technical features described in the present application can be freely combined or combined in any mode, unless contradictory to each other.
[0030] The above only describes the preferred embodiments of the present application and should not be used to limit the present application, and any modification, equivalent replacement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A band guided damper test ram, characterized by, The test oil cylinder comprises a test oil cylinder (1) provided with a front end cover (12) and a rear end cover (13) on two sides respectively, and a vice piston rod (14) arranged at one end of the test oil cylinder (1); a guide sleeve (2) is connected with the rear end cover (13) of the test oil cylinder (1) at one end and sleeved on the outer periphery of the vice piston rod (14); a guide block (3) is inserted into the guide sleeve (2) and installed on the other end of the vice piston rod (14); a guide sleeve end cover (6) is installed at the other end of the guide sleeve (2), and a speed displacement sensor (7) is installed on the guide sleeve end cover (6).
2. The guided damper test ram of claim 1, wherein, A connecting thread (111) is machined on one side of a main piston rod (11) at one end of the test oil cylinder (1), and the test oil cylinder is connected with a test pin seat and a pin shaft through the connecting thread (111); the front end cover (12) of the test oil cylinder (1) is provided with a mounting flange, and the damper test oil cylinder is mounted on a damper test bench rack through the mounting flange.
3. The guided damper test ram of claim 1, wherein, A plurality of rear end cover thread holes (131) are machined on the right end face of the rear end cover (13) of the test oil cylinder (1); the guide sleeve (2) is provided with a guide sleeve left flange (21) and a guide sleeve right flange (23) at two ends, and a plurality of uniformly distributed guide sleeve left flange mounting holes (211) and guide sleeve right flange mounting holes (231) are machined on the circumferences of the two flanges respectively.
4. The guided damper test ram of claim 3, wherein, The guide sleeve (2) is installed on one side end face of the rear end cover (13) of the test oil cylinder (1) through the guide sleeve left flange (21) and mounting screws; and the guide sleeve end cover (6) is installed on one side end face of the guide sleeve right flange (23) through mounting screws.
5. The guided damper test ram of claim 1, wherein, The middle part of the guide sleeve (2) is a guide pipe (22), and left and right guide grooves (221) and (222) are machined on the two sides of the guide pipe (22) respectively; and the upper and lower sides of an arc-shaped guide block main body (32) of the guide block (3) are machined with a guide block upper guide boss (31) and a guide block lower guide boss (33) respectively.
6. A guided damper test ram according to claim 5, wherein, The guide block (3) is inserted into the guide sleeve (2), and the guide block upper guide boss (31) on one side of the guide block (3) is embedded into the left guide groove (221), and the guide block lower guide boss (33) on the other side is embedded into the right guide groove (222).
7. The guided damper test ram of claim 1, wherein, One end of the guide block (3) is installed on one side end face of the vice piston rod (14) through a guide block mounting screw, and a magnetic ring (4) and a gasket (5) are installed on the other end of the guide block (3) through a magnetic ring mounting screw.
8. A guided damper test ram according to any one of claims 1 to 7, wherein, A guide block sensor through hole (35) is machined in the center of the guide block (3), a plurality of uniformly distributed guide block magnetic ring mounting thread holes (34) are machined on the outer periphery of the guide block sensor through hole (35), and a plurality of uniformly distributed guide block screw mounting holes (36) and guide block screw counterbores (37) are machined on the outer periphery of the guide block magnetic ring mounting thread holes (34).
9. The guided damper test ram of claim 1, wherein, The guide sleeve end cover (6) is processed with guide sleeve end cover mounting boss (61) on one side, the center of the guide sleeve end cover (6) is processed with guide sleeve end cover sensor mounting threaded hole (62), the outer periphery of the guide sleeve end cover (6) is processed with several evenly distributed guide sleeve end cover mounting threaded holes (63); The guide sleeve end cover mounting boss (61) is inserted into the right end of the guide pipe (22) and fixedly connected by mounting screws.
10. The guided damper test ram of claim 9, wherein, The measuring rod of the speed displacement sensor (7) passes through the guide sleeve end cover mounting threaded hole (63) and passes through the sub piston rod center hole (141) inserted into one end of the sub piston rod (14).