High-frequency high-displacement durable cooling device for shock absorber

Abstract

The utility model provides a high-frequency high-displacement durable cooling device for a shock absorber, and belongs to the technical field of durability tests of automobile shock absorbers. Comprising a liquid cooling cylinder and two fixing assemblies, the liquid cooling cylinder is cylindrical, an annular flow channel is formed in the liquid cooling cylinder, a water inlet and a water outlet which are communicated with the annular flow channel are formed in the outer wall of the liquid cooling cylinder, each fixing assembly comprises an annular cover plate, an elastic sealing gasket and a locking hoop, and the cylindrical end of the elastic sealing gasket protrudes outwards in the radial direction to be provided with a pressing lug; the annular cover plate fixedly covers the end of the liquid cooling cylinder, the inner side wall of the annular cover plate abuts against the outer side wall of the elastic sealing gasket, the outer side wall of the elastic sealing gasket is sleeved with the locking hoop, and the two fixing assemblies are arranged at the two ends of the liquid cooling cylinder respectively. By adopting the cooling device, the technical problem that the mounting and connecting structure of the cooling device and the shock absorber in the traditional high-frequency high-displacement endurance test is easy to damage in the prior art can be solved while the cooling effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile shock absorber durability test, in particular to a high-frequency and high-displacement durable cooling device for a shock absorber. Background Art

[0002] Automobile shock absorbers are devices installed between the wheels and the car body to provide damping. Their function is to attenuate the vibration transmitted from the wheels to the car body. The working principle of the shock absorber is to convert the mechanical energy of vehicle vibration into heat energy to achieve the purpose of attenuating vibration.

[0003] In the relevant technology, the shock absorber must undergo a high-frequency and high-displacement endurance motion test before leaving the factory. Due to the high-frequency vibration, displacement and up and down movement of the shock absorber shaft during the test, the shock absorber will generate a lot of heat during continuous operation. The commonly used test device adopts a water tank-type continuous cooling design. The shock absorber will be immersed in the water tank, one end of which is connected to the vibration device, and the other end is fixedly connected to the relevant connection structure in the water tank through the threaded fixing hole structure at the bottom, and the shock absorber is continuously cooled by water cooling.

[0004] When adopting the water cooling scheme in the relevant technology, during the high-frequency and high-displacement vibration process of the shock absorber, the stress at the connection of the bottom threaded fixing hole is relatively concentrated, and the thread is easily pulled out and fails, resulting in the inability to install and conduct stable tests, causing the scrapping of the test piece and the related mechanisms of the cooling device, affecting the test efficiency and causing economic losses. Utility Model Content

[0005] The embodiment of the utility model provides a high-frequency and high-displacement durable cooling device for a vibration absorber, which can solve the technical problem of the easy damage of the cooling device and the vibration absorber installation connection structure in the traditional high-frequency and high-displacement durability test in the related art while ensuring the cooling pass. The technical solution is as follows:

[0006] The utility model provides a high-frequency and high-displacement durable cooling device for a vibration absorber, comprising: a liquid cooling cylinder and two sets of fixing components,

[0007] The liquid cooling cylinder is cylindrical, and an annular flow channel is arranged in the liquid cooling cylinder, and the annular flow channel extends along the axial direction of the liquid cooling cylinder and is in contact with the inner wall of the liquid cooling cylinder. A water inlet and a water outlet connected with the annular flow channel are arranged on the outer wall of the liquid cooling cylinder, and the water inlet and the water outlet are arranged at intervals along the axial direction of the liquid cooling cylinder;

[0008] The fixing assembly includes an annular cover plate, an elastic sealing gasket and a locking clamp. The elastic sealing gasket is cylindrical and has an inner diameter that is the same as the inner diameter of the liquid-cooling cylinder. One end of the elastic sealing gasket protrudes radially outward and is provided with a clamping ear. The annular cover plate fixing cover is arranged on the end of the liquid-cooling cylinder. The clamping ear is clamped between the annular cover plate and the end of the liquid-cooling cylinder. The inner side wall of the annular cover plate abuts against the outer side wall of the elastic sealing gasket. The locking clamp is sleeved on the outer side wall of the elastic sealing gasket. The two groups of fixing assemblies are respectively arranged at both ends of the liquid-cooling cylinder.

[0009] Optionally, the water inlet and the water outlet are arranged at an angle around the circumference of the liquid cooling cylinder.

[0010] Optionally, in the circumferential direction of the liquid cooling cylinder, the angle between the water inlet and the water outlet is 180°.

[0011] Optionally, the liquid cooling cylinder is provided with connecting grooves corresponding to the water inlet and the water outlet, and the water inlet and the water outlet are arranged on the corresponding groove bottom planes of the connecting grooves.

[0012] Optionally, a connecting mounting hole is provided on the groove bottom plane of the connecting groove.

[0013] Optionally, the elastic sealing gasket is a silicone rubber gasket.

[0014] Optionally, the annular cover plate and the liquid-cooling cylinder are connected by bolts.

[0015] Optionally, the liquid cooling cylinder and the annular cover plate are both made of aluminum.

[0016] The beneficial effects brought by the technical solution provided by the embodiment of the utility model include at least:

[0017] The high-frequency and high-displacement durable cooling device for the shock absorber provided by the embodiment of the utility model is combined with the liquid cooling cylinder through the fixing components arranged on both sides so as to be integrally sleeved on the shock absorber shaft of the shock absorber. When the shock absorber is connected to the vibration test device for high-frequency and high-displacement durable motion test, the cooling device can be mounted on the shock absorber shaft for synchronous movement. At this time, an external liquid cooling circulation pipeline is connected to the water inlet and the water outlet, and the coolant is introduced through the water inlet. The coolant exchanges heat with the heated shock absorber shaft in the annular flow channel, and finally the heat is taken away from the water outlet to achieve continuous heat dissipation and cooling of the shock absorber. Compared with the prior art that sets a large-volume water tank for immersion heat dissipation of the shock absorber, it does not require a complex connection between the shock absorber and the water tank, and the other end of the shock absorber shaft can be suspended or simply limited by the relevant matching base to avoid the threaded fixing hole at the bottom thereof from being unable to be pulled out due to vibration. It can solve the technical problem of easy damage of the cooling device and the shock absorber installation connection structure in the traditional high-frequency and high-displacement durability test in the related technology while ensuring the cooling pass. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a formal structural schematic diagram of the high-frequency, high-displacement, durable cooling device for a vibration absorber provided by an embodiment of the utility model;

[0020] Figure 2 yes Figure 1 Structural cross-section view at AA in the middle.

[0021] In the figure:

[0022] 1-liquid cooling cylinder; 2-fixing assembly; 11-annular flow channel; 12-water inlet; 13-water outlet; 14-connecting groove; 21-annular cover plate; 22-elastic sealing gasket; 23-locking clamp; 141-connecting mounting hole; 221-tightening ear; m-vibration damping shaft. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] In the relevant technology, the shock absorber must undergo a high-frequency and high-displacement endurance motion test before leaving the factory. Due to the high-frequency vibration, displacement and up and down movement of the shock absorber shaft during the test, the shock absorber will generate a lot of heat during continuous operation. The commonly used test device adopts a water tank-type continuous cooling design. The shock absorber will be immersed in the water tank, one end of which is connected to the vibration device, and the other end is fixedly connected to the relevant connection structure in the water tank through the threaded fixing hole structure at the bottom, and the shock absorber is continuously cooled by water cooling.

[0025] When adopting the water cooling scheme in the relevant technology, during the high-frequency and high-displacement vibration process of the shock absorber, the stress at the connection of the bottom threaded fixing hole is relatively concentrated, and the thread is easily pulled out and fails, resulting in the inability to install and conduct stable tests, causing the scrapping of the test piece and the related mechanisms of the cooling device, affecting the test efficiency and causing economic losses.

[0026] picture Figure 1 It is a formal structural schematic diagram of the high-frequency, high-displacement, durable cooling device for a vibration absorber provided by an embodiment of the utility model; Figure 2 yes Figure 1 The structural cross-section view at AA in the figure. Figures 1 to 2 As shown, through practice, the embodiment of the utility model provides a high-frequency and high-displacement durable cooling device for a vibration absorber, comprising a liquid cooling cylinder 1 and two sets of fixing components 2.

[0027] The liquid cooling cylinder 1 is cylindrical, and an annular flow channel 11 is arranged inside the liquid cooling cylinder 1. The annular flow channel 11 extends along the axial direction of the liquid cooling cylinder 1 and is attached to the inner wall of the liquid cooling cylinder 1. A water inlet 12 and a water outlet 13 connected to the annular flow channel 11 are arranged on the outer wall of the liquid cooling cylinder 1. The water inlet 12 and the water outlet 13 are arranged at intervals along the axial direction of the liquid cooling cylinder 1.

[0028] The fixing assembly 2 includes an annular cover plate 21, an elastic sealing gasket 22 and a locking clamp 23. The elastic sealing gasket 22 is cylindrical and has the same inner diameter as the inner diameter of the liquid cooling cylinder 1. One end of the elastic sealing gasket 22 is radially protruding outward and provided with a clamping ear 221. The annular cover plate 21 is fixedly provided at the end of the liquid cooling cylinder 1, and the clamping ear 221 is clamped between the annular cover plate 21 and the end of the liquid cooling cylinder 1. The inner side wall of the annular cover plate 21 abuts against the outer side wall of the elastic sealing gasket 22, and the locking clamp 23 is sleeved on the outer side wall of the elastic sealing gasket 22. Two sets of fixing assemblies 2 are respectively provided at both ends of the liquid cooling cylinder 1.

[0029] In the embodiment of the utility model, the high-frequency and high-displacement durable cooling device of the vibration absorber cooperates with the vibration-absorbing shaft m of the vibration absorber through the inner wall of the liquid-cooling cylinder 1, so as to be sleeved on the outside of the vibration-absorbing shaft m. Then, the fixing assembly 2 is correspondingly installed on both ends of the liquid-cooling cylinder 1, and the elastic sealing gasket 22 is first sleeved on the vibration-absorbing shaft m, and the pressing ear 221 is affixed to the end face of the end of the liquid-cooling cylinder 1, and then the annular cover plate 21 is further sleeved on the outside of the elastic sealing gasket 22 and fixedly connected to the end of the liquid-cooling cylinder 1, and the pressing ear 221 is clamped between the annular cover plate 21 and the end face of the liquid-cooling cylinder 1, and at the same time, the inner side wall of the annular cover plate 21 presses the elastic sealing gasket 22 on the outer side wall of the vibration-absorbing shaft m. Thereafter, the elastic sealing gasket 22 is further locked and fixed on the vibration damping shaft m by using the locking clamp 23. By arranging the fixing components 2 at both ends of the liquid cooling cylinder 1 in the above-mentioned manner, the vibration damper high-frequency and high-displacement durable cooling device is fixed as a whole on the vibration damping shaft m. The elastic sealing gasket 22 is used to seal the openings on both sides of the internal annular flow channel 11, and at the same time, the large static friction of the contact is used to ensure the stability of the connection with the vibration damping shaft m. The high-frequency and high-displacement durable cooling device for the shock absorber provided by the embodiment of the utility model is combined with the liquid cooling cylinder 1 through the fixing components 2 arranged on both sides so as to be integrally sleeved on the shock absorber shaft m of the shock absorber. When the shock absorber is connected to the vibration test device for high-frequency and high-displacement durable motion test, the cooling device can be mounted on the shock absorber shaft m for synchronous movement. At this time, an external liquid cooling circulation pipeline is connected to the water inlet 12 and the water outlet 13, and the coolant is introduced through the water inlet 12. The coolant exchanges heat with the heated shock absorber shaft m in the annular flow channel 11, and finally the heat is taken away from the water outlet 13, so as to realize continuous heat dissipation and cooling of the shock absorber. Compared with the prior art in which a large-volume water tank is set to immerse the shock absorber in heat dissipation, it does not need to make a complex connection between the shock absorber and the water tank, and the other end of the shock absorber shaft m can be suspended or simply limited by the relevant matching base to avoid the threaded fixing hole at the bottom thereof from being unable to be extracted due to vibration. It can solve the technical problem of easy damage of the cooling device and the shock absorber installation connection structure in the traditional high-frequency and high-displacement durability test in the related technology while ensuring the cooling pass.

[0030] For example, in the embodiment of the utility model, the annular flow channel 11 can be a flow channel structure arranged in the liquid cooling cylinder 1, and there is still a certain interval between the inner wall of the liquid cooling cylinder 1. In other possible implementations, the annular flow channel 11 can also be connected to the inner wall of the liquid cooling cylinder 1, that is, the inner diameter of the liquid cooling cylinder 1 is set to be larger than the diameter of the vibration damping shaft m, and the annular space formed between the inner wall of the liquid cooling cylinder 1 and the side wall of the vibration damping shaft m is regarded as the annular flow channel 11.

[0031] Optionally, the water inlet 12 and the water outlet 13 are arranged at an angle around the circumference of the liquid-cooling cylinder 1. Exemplarily, in the embodiment of the utility model, on the circumference of the liquid-cooling cylinder 1, the angle between the water inlet 12 and the water outlet 13 is 180°. By setting the water inlet 12 and the water outlet 13 to be arranged at an angle around the circumference of the liquid-cooling cylinder 1, in addition to flowing in the axial direction of the annular flow channel 11, the coolant can also enter the annular flow channel 11 from one side of the water inlet 12 and fully flow around to the water outlet 13 on the other side and then flow out, which effectively increases the flow distance of the coolant, ensures sufficient heat exchange with the internal damping shaft m, and improves the cooling effect.

[0032] Optionally, a connecting groove 14 corresponding to the water inlet 12 and the water outlet 13 is provided on the liquid cooling cylinder 1, and the water inlet 12 and the water outlet 13 are provided on the groove bottom plane of the corresponding connecting groove 14. Exemplarily, in the embodiment of the utility model, a rectangular connecting groove 14 that is recessed inward is provided around the water inlet 12 and the water outlet 13, and a plurality of connecting and mounting holes 141 are provided on the groove bottom plane of the connecting groove 14. It is convenient to dock and install the external liquid cooling circulation pipeline with the water inlet 12 or the water outlet 13, and a joint with a threaded hole connection structure is provided to cooperate with the connecting groove 14, and fixedly connected through the connecting and mounting holes 141. The structure is simple, the connection is convenient and tight, and the connection of the liquid cooling circulation pipeline can be prevented from being loosened during the vibration test, thereby improving the assembly and working stability.

[0033] Optionally, the elastic sealing pad 22 is a silicone rubber pad. As an elastic material, the silicone rubber material has high temperature resistance while ensuring sealing performance, and can effectively prevent the connection from being deformed due to the heat generated by the vibration reduction shaft m during the test.

[0034] Optionally, the annular cover plate 21 and the liquid cooling cylinder 1 are connected by bolts, which has a simple structure and is convenient for disassembly and replacement.

[0035] Optionally, the liquid cooling cylinder 1 and the annular cover plate 21 are both made of aluminum. The aluminum liquid cooling cylinder 1 and the annular cover plate 21 are used to facilitate the cooling liquid in the annular flow channel 11 to fully exchange heat with the vibration reduction shaft m by utilizing their excellent temperature conductivity, further improving the cooling effect.

[0036] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] The above description is only an optional embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-frequency and high-displacement durable cooling device for a vibration absorber, characterized in that: include: Liquid cooling cylinder (1) and two sets of fixing components (2), The liquid cooling cylinder (1) is cylindrical, and an annular flow channel (11) is arranged inside the liquid cooling cylinder (1). The annular flow channel (11) extends along the axial direction of the liquid cooling cylinder (1) and is in contact with the inner wall of the liquid cooling cylinder (1). A water inlet (12) and a water outlet (13) which are connected to the annular flow channel (11) are arranged on the outer wall of the liquid cooling cylinder (1). The water inlet (12) and the water outlet (13) are arranged at intervals along the axial direction of the liquid cooling cylinder (1). The fixing assembly (2) comprises an annular cover plate (21), an elastic sealing gasket (22) and a locking clamp (23); the elastic sealing gasket (22) is cylindrical and has an inner diameter that is the same as the inner diameter of the liquid cooling cylinder (1); one end of the elastic sealing gasket (22) is radially protruding outward and is provided with a clamping ear (221); the annular cover plate (21) is fixedly provided at the end of the liquid cooling cylinder (1); the clamping ear (221) is clamped between the annular cover plate (21) and the end of the liquid cooling cylinder (1); the inner side wall of the annular cover plate (21) is in contact with the outer side wall of the elastic sealing gasket (22); the locking clamp (23) is sleeved on the outer side wall of the elastic sealing gasket (22); and the two groups of fixing assemblies (2) are respectively provided at the two ends of the liquid cooling cylinder (1).

2. The high-frequency and high-displacement durable cooling device for vibration damper according to claim 1, characterized in that: The water inlet (12) and the water outlet (13) are arranged at an angle around the circumference of the liquid cooling cylinder (1).

3. The high-frequency and high-displacement durable cooling device for vibration damper according to claim 2, characterized in that: In the circumferential direction of the liquid cooling cylinder (1), the angle between the water inlet (12) and the water outlet (13) is 180°.

4. The high-frequency and high-displacement durable cooling device for vibration damper according to claim 2, characterized in that: The liquid cooling cylinder (1) is provided with a connecting groove (14) corresponding to the water inlet (12) and the water outlet (13); the water inlet (12) and the water outlet (13) are arranged on the corresponding groove bottom plane of the connecting groove (14).

5. The high-frequency and high-displacement durable cooling device for vibration damper according to claim 4, characterized in that: A connecting and mounting hole (141) is provided on the groove bottom plane of the connecting groove (14).

6. The high-frequency and high-displacement durable cooling device for vibration damper according to claim 1, characterized in that: The elastic sealing pad (22) is a silicon rubber pad.

7. The high-frequency and high-displacement durable cooling device for vibration damper according to claim 1, characterized in that: The annular cover plate (21) and the liquid cooling cylinder (1) are connected by bolts.

8. The high-frequency and high-displacement durable cooling device for vibration damper according to claim 1, characterized in that: The liquid cooling cylinder (1) and the annular cover plate (21) are both made of aluminum.

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