Damper with adjustable damping

Abstract

The utility model provides a damper with adjustable damping, which relates to the field of automobile shock absorption dampers and comprises a damper assembly, the damper assembly comprises a shell, a piston rod and a hanging ring, one end of the piston rod extends to an inner cavity of the shell and is movably connected with the inner cavity of the shell, and the hanging ring is located at the other end of the piston rod. An adjusting assembly is installed at the end, located outside the shell, of the piston rod and comprises a pressing plate, a reset spring, a first gasket, a second gasket and a supporting spring. By arranging the damper assembly, the effect of buffering vibration and impact is achieved, so that the damper assembly can be used for damping, by arranging the pressing plate, the reset spring, the first gasket, the second gasket and the supporting spring, the effect of adjusting the pre-tightening force of the spring is achieved, the damping effect of the damper can be adjusted, and the service life of the damper is prolonged. And therefore, the use effect of the damper is improved, and the damper can adapt to different use places.

Description

Technical Field

[0001] The utility model belongs to the field of automobile shock absorbing dampers, in particular to a damper with adjustable damping. Background Art

[0002] A damper is a device that controls the vibration or movement speed of an object by consuming energy. It is used to reduce the vibration of mechanical parts, avoid noise, wear and damage caused by vibration, and also improve the stability and service life of the mechanical system. The hydraulic damper is a key component in the automobile suspension system. Its main function is to slow down the strong rebound of the spring through damping, thereby reducing the vibration and impact of the vehicle during driving, improving the vehicle's comfort and handling stability.

[0003] According to Chinese patent application number: 202321922606.1, a damper with adjustable damping effect is disclosed, including a cylinder body, a piston and a connecting rod, the piston is slidably connected to the cylinder body and the inner part of the cylinder body is divided into a rodless chamber and a rod chamber where the connecting rod is located, a long hole flow channel and a compensation chamber are provided on the cylinder body, and a regulating flow channel and a liquid separation flow channel are provided at the bottom end of the cylinder body, the two ends of the regulating flow channel are respectively connected with the rodless chamber and the liquid separation flow channel, the liquid separation flow channel is respectively connected with the long hole flow channel and the compensation chamber, a regulating valve for controlling the passing capacity of the regulating flow channel is provided on the regulating flow channel, the regulating valve includes a valve body and a regulating shaft, and the regulating shaft is connected to a handwheel for controlling the rotation of the regulating shaft at one end away from the valve body, the handwheel is arranged on the outside of the cylinder body, and the operator can drive the regulating shaft to rotate by turning the handwheel to adjust the opening and closing degree of the regulating valve, and when the connecting rod pushes the piston to slide, the piston is subjected to different damping degrees;

[0004] The existing technology effectively solves the problem that when a vehicle is driving on roads with different road conditions, the road surface has different degrees of bumpiness and it is difficult to adjust the damping effect of the damper according to different road conditions. It has the advantage of being able to adjust the damping effect of the damper, but this type of damper adjusts the damping effect by controlling the circulation of liquid, and the preload force of the spring at the front end of the damper cannot be adjusted, which will cause the damping effect after adjustment to be reduced.

[0005] In summary, the present invention provides a damper with adjustable damping to solve the above problems. Utility Model Content

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A damper with adjustable damping includes a damper assembly, which includes an outer shell, a piston rod and a lifting ring. One end of the piston rod extends to the inner cavity of the outer shell and is movably connected to the inner cavity of the outer shell. The lifting ring is located at the other end of the piston rod. The end of the piston rod located outside the outer shell is equipped with an adjustment assembly. The adjustment assembly includes a pressure plate, a return spring, a first gasket, a second gasket and a support spring. The pressure plate, return spring, first gasket, second gasket and support spring are all sleeved on the surface of the piston rod. One side of the second gasket is in contact with the surface of the lifting ring. The end of the pressure plate away from the return spring is in contact with the first gasket. The support spring is located between the first gasket and the second gasket.

[0008] Furthermore, in the present invention, one end of the support spring is fixedly connected to the first gasket, and the other end of the support spring is fixedly connected to the second gasket.

[0009] Furthermore, in the present invention, the pressure plate is sleeved on the surface of the piston rod and is threadedly connected to the surface of the piston rod, and one end of the pressure plate away from the first gasket is in contact with the return spring.

[0010] Furthermore, in the present invention, the damper assembly also includes an end cover, a bottom cover, a piston body, a sealing plug, a threaded hole, an oil inlet and an oil return port. The piston body and the sealing plug are both installed in the inner cavity of the outer shell, and the piston body is slidably connected to the inner cavity of the outer shell.

[0011] Furthermore, in the present invention, the piston body is located at the rear end of the shell cavity, the sealing plug is located at the front end of the shell cavity, and one end of the piston rod located at the shell cavity passes through the sealing plug and is fixedly connected to the piston body.

[0012] Furthermore, in the present invention, the end cover is located at the front end of the shell and is threadedly connected to the surface of the shell, the bottom cover is located at the rear end of the shell and is threadedly connected to the inner cavity of the shell, and the end of the return spring away from the pressure plate contacts the surface of the end cover.

[0013] Furthermore, in the present invention, the end cover is located at the front end of the shell and is threadedly connected to the surface of the shell, the bottom cover is located at the rear end of the shell and is threadedly connected to the inner cavity of the shell, and the end of the return spring away from the pressure plate contacts the surface of the end cover.

[0014] Beneficial effects: The utility model has the following beneficial effects:

[0015] The utility model has the effect of buffering vibrations and impacts by arranging a damper assembly, so that it can be used for shock reduction. By arranging a pressure plate, a return spring, a first gasket, a second gasket and a support spring, it has the effect of adjusting the preload force of the spring, so that the damping effect of the damper can be adjusted, thereby improving the use effect of the damper and making it adaptable to different places of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the utility model in which the damper assembly and the adjustment assembly are separated;

[0018] Figure 3 This is a schematic structural diagram of the separated state of the regulating component of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the connection state of the lifting ring and the threaded hole of the utility model.

[0020] In the picture:

[0021] 1. Damper assembly; 101. Housing; 102. Piston rod; 103. Lifting ring; 104. End cover; 105. Bottom cover; 106. Piston body; 107. Sealing plug; 108. Threaded hole; 109. Oil inlet; 110. Oil return port; 2. Adjustment assembly; 201. Pressure plate; 202. Return spring; 203. First gasket; 204. Second gasket; 205. Support spring. DETAILED DESCRIPTION

[0022] In order to better understand the technical content of the present invention, specific embodiments are given and described as follows in conjunction with the accompanying drawings. Various aspects of the present invention are described in this disclosure with reference to the accompanying drawings, in which many illustrative embodiments are shown. The embodiments of the present disclosure are not necessarily defined to include all aspects of the present invention. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the present invention are not limited to any implementation method. In addition, some aspects disclosed in the present invention can be used alone or in any appropriate combination with other aspects disclosed in the present invention.

[0023] Example 1

[0024] like Figure 1-4FIG. 1 is a first embodiment of the present invention, which provides a damper with adjustable damping, including a damper assembly 1, the damper assembly 1 including a housing 101, a piston rod 102 and a lifting ring 103, one end of the piston rod 102 extending into the inner cavity of the housing 101 and movably connected to the inner cavity of the housing 101, the lifting ring 103 is located at the other end of the piston rod 102, and the end of the piston rod 102 located outside the housing 101 is installed with an adjustment assembly 2, the adjustment assembly 2 including a pressure plate 20 1. The return spring 202, the first gasket 203, the second gasket 204 and the support spring 205. The pressure plate 201, the return spring 202, the first gasket 203, the second gasket 204 and the support spring 205 are all sleeved on the surface of the piston rod 102. One side of the second gasket 204 contacts the surface of the lifting ring 103. The end of the pressure plate 201 away from the return spring 202 contacts the first gasket 203. The support spring 205 is located between the first gasket 203 and the second gasket 204.

[0025] like Figure 1-4 As shown, the return spring 202 is installed on the surface of the piston rod 102 through a spring seat or a spring tray, and then the pressure plate 201 is sleeved on the surface of the piston rod 102. The pressure plate 201 is rotated to engage the external thread on the surface of the piston rod 102. The two ends of the return spring 202 are respectively in contact with the pressure plate 201 and the end cover 104. The pressure plate 201 squeezes the return spring 202 during the rotation, thereby changing the preload force of the return spring 202, so that the movement distance of the piston rod 102 is limited. The first gasket 203, the second gasket 204 and the support spring 205 are used to increase the contact area between the lifting ring 103 and the piston rod 102, and can also prevent the pressure plate 201 from loosening on the surface of the piston rod 102. The damping effect of the damper can be adjusted by cooperating with the pressure plate 201, the return spring 202, the first gasket 203, the second gasket 204 and the support spring 205.

[0026] Example 2

[0027] Reference Figure 1-4 , which is the second embodiment of the present utility model, and this embodiment is based on the previous embodiment.

[0028] In this embodiment, one end of the support spring 205 is fixedly connected to the first gasket 203 , and the other end of the support spring 205 is fixedly connected to the second gasket 204 .

[0029] The pressure plate 201 is sleeved on the surface of the piston rod 102 and is threadedly connected to the surface of the piston rod 102 . One end of the pressure plate 201 away from the first gasket 203 is in contact with the return spring 202 .

[0030] The damper assembly 1 also includes an end cover 104, a bottom cover 105, a piston body 106, a sealing plug 107, a threaded hole 108, an oil inlet 109 and an oil return port 110. The piston body 106 and the sealing plug 107 are both installed in the inner cavity of the shell 101, and the piston body 106 is slidably connected to the inner cavity of the shell 101.

[0031] The piston body 106 is located at the rear end of the inner cavity of the shell 101, the sealing plug 107 is located at the front end of the inner cavity of the shell 101, and one end of the piston rod 102 located in the inner cavity of the shell 101 passes through the sealing plug 107 and is fixedly connected to the piston body 106.

[0032] The end cover 104 is located at the front end of the shell 101 and is threadedly connected to the surface of the shell 101. The bottom cover 105 is located at the rear end of the shell 101 and is threadedly connected to the inner cavity of the shell 101. The end of the return spring 202 away from the pressure plate 201 contacts the surface of the end cover 104.

[0033] The oil inlet 109 and the oil return port 110 are respectively installed at the front and rear ends of the surface of the outer shell 101, the threaded hole 108 is opened on the back of the lifting ring 103, and the end of the piston rod 102 away from the piston body 106 extends to the inner cavity of the threaded hole 108 and is threadedly connected to the inner cavity of the threaded hole 108.

[0034] like Figure 1-4 As shown, the surfaces of the return oil port 110 and the oil inlet port 109 are both provided with throttle valves for adjusting the oil inlet and return oil volumes. The return oil pipeline inside the housing 101 is consistent with that in the comparative case, and the movement principle is also consistent, so it will not be elaborated in detail. The piston body 106 drives the piston rod 102 to extend and retract while moving in the inner cavity of the housing 101. Since the pressure plate 201 and the return spring 202 limit the extension distance of the piston rod 102, the damping effect of the damper can be limited. The end cover 104 and the sealing plug 107 are used to seal the connection between the housing 101 and the piston rod 102 to prevent external dust or internal hydraulic oil leakage. The bottom cover 105 is used to seal the back of the housing 101. The lifting ring 103 can be connected to external equipment through a movable pin.

[0035] When in use, the return spring 202 is sleeved on the surface of the piston rod 102, and then the pressure plate 201 is sleeved on the surface of the piston rod 102. The pressure plate 201 is rotated to engage the external thread on the surface of the piston rod 102. The two ends of the return spring 202 contact the pressure plate 201 and the end cover 104 respectively. The pressure plate 201 squeezes the return spring 202 during the rotation process, thereby changing the pre-tightening force of the return spring 202, so that the movement distance of the piston rod 102 is limited. The piston body 106 moves in the inner cavity of the shell 101 while driving the piston rod 102 to extend and retract. Since the pressure plate 201 and the return spring 202 limit the extension distance of the piston rod 102, the damping effect of the damper can be limited. The first gasket 203, the second gasket 204 and the support spring 205 are used to increase the contact area between the lifting ring 103 and the piston rod 102, and can also prevent the pressure plate 201 from loosening on the surface of the piston rod 102.

[0036] The standard parts used in this application document can all be purchased from the market, and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field, which is common knowledge in this field. In addition, this application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0037] While the present invention has been described above with reference to preferred embodiments, this is not intended to limit the present invention. Persons skilled in the art will readily appreciate that various modifications and variations may be made without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A damper with adjustable damping, comprising a damper assembly (1), characterized in that: The damper assembly (1) comprises a housing (101), a piston rod (102) and a lifting ring (103), one end of the piston rod (102) extends to the inner cavity of the housing (101) and is movably connected to the inner cavity of the housing (101), the lifting ring (103) is located at the other end of the piston rod (102), and an adjustment assembly (2) is installed at the end of the piston rod (102) located outside the housing (101), the adjustment assembly (2) comprises a pressure plate (201), a return spring (202), a first gasket (203), a second The gasket (204) and the support spring (205) are all sleeved on the surface of the piston rod (102), the pressure plate (201), the return spring (202), the first gasket (203), the second gasket (204) and the support spring (205), one side of the second gasket (204) is in contact with the surface of the lifting ring (103), the end of the pressure plate (201) away from the return spring (202) is in contact with the first gasket (203), and the support spring (205) is located between the first gasket (203) and the second gasket (204).

2. The damper with adjustable damping according to claim 1, characterized in that: One end of the support spring (205) is fixedly connected to the first gasket (203), and the other end of the support spring (205) is fixedly connected to the second gasket (204).

3. The damper with adjustable damping according to claim 1, characterized in that: The pressure plate (201) is sleeved on the surface of the piston rod (102) and is threadedly connected to the surface of the piston rod (102). One end of the pressure plate (201) away from the first gasket (203) contacts the return spring (202).

4. The damper with adjustable damping according to claim 1, characterized in that: The damper assembly (1) further comprises an end cover (104), a bottom cover (105), a piston body (106), a sealing plug (107), a threaded hole (108), an oil inlet (109) and an oil return port (110); the piston body (106) and the sealing plug (107) are both mounted in the inner cavity of the housing (101); and the piston body (106) is slidably connected to the inner cavity of the housing (101).

5. The damper with adjustable damping according to claim 4, characterized in that: The piston body (106) is located at the rear end of the inner cavity of the shell (101), the sealing plug (107) is located at the front end of the inner cavity of the shell (101), and one end of the piston rod (102) located in the inner cavity of the shell (101) passes through the sealing plug (107) and is fixedly connected to the piston body (106).

6. The damper with adjustable damping according to claim 4, characterized in that: The end cover (104) is located at the front end of the housing (101) and is threadedly connected to the surface of the housing (101); the bottom cover (105) is located at the rear end of the housing (101) and is threadedly connected to the inner cavity of the housing (101); and one end of the return spring (202) away from the pressure plate (201) contacts the surface of the end cover (104).

7. The damper with adjustable damping according to claim 4, characterized in that: The oil inlet (109) and the oil return port (110) are respectively installed at the front end and the rear end of the surface of the shell (101); the threaded hole (108) is opened on the back side of the lifting ring (103); the end of the piston rod (102) away from the piston body (106) extends to the inner cavity of the threaded hole (108) and is threadedly connected to the inner cavity of the threaded hole (108).

Images