Auxiliary adjusting device for precharge of shock absorber

Abstract

This utility model discloses an auxiliary adjustment device for the preload of a shock absorber, including a worktable and a movable seat, a pressure seat, and a pressure display mounted on the worktable. The movable seat and the pressure seat are arranged opposite to each other and are respectively used to connect the two ends of the shock absorber. The movable seat reciprocates a specific distance on the worktable to change the preload of the shock absorber. The pressure seat is equipped with a pressure sensor for detecting the preload of the shock absorber, and the pressure sensor is connected to the pressure display. The device of this application can assist in adjusting the preload of the shock absorber, ensuring that the preload of the shock absorber to be adjusted can be adjusted to a preset value so that the assembled shock absorber meets the installation requirements. Even if there are differences in the factory specifications of the shock absorber, it can be adjusted for the installation and use of the robot.

Description

Technical Field

[0001] This utility model relates to the field of adjustment equipment technology, and in particular to an auxiliary adjustment device for the preload of a shock absorber. Background Technology

[0002] Shock absorbers are used to suppress the oscillations when the spring absorbs shock and rebounds, as well as the impact from the road surface. They are widely used in automobiles, inspection robots, etc., to reduce the vibration of the chassis during the movement of the vehicle and improve the ride comfort.

[0003] Before assembly and production, the shock absorbers used on inspection robots (such as explosion-proof robots) need to be pre-pressurized to change their stiffness and adapt to different vehicle heights, ensuring that the shock absorbers meet production requirements.

[0004] During the adjustment of the shock absorber preload, changing the position of the adjusting plate on the shock absorber can change the spring preload. However, the change in the shock absorber preload value when the position of the adjusting plate is changed is unknown, and it is unclear where the adjusting plate is positioned to ensure that the shock absorber preload meets the robot assembly requirements. Therefore, an auxiliary adjustment device is needed to ensure that the preload value of each shock absorber after adjustment meets the requirements. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an auxiliary adjustment device for the preload of shock absorbers. This device can assist in adjusting the preload of shock absorbers, ensuring that all purchased shock absorbers have the same preload before installation, thus facilitating the assembly and use of shock absorbers in robots.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an auxiliary adjustment device for the preload of a shock absorber, comprising a workbench and a movable seat, a pressure seat, and a pressure display mounted on the workbench.

[0007] The movable seat and the pressure seat are arranged opposite each other and are used to connect the two ends of the shock absorber, respectively;

[0008] The movable seat moves back and forth a specific distance on the worktable to change the preload of the shock absorber;

[0009] The pressure seat is equipped with a pressure sensor for detecting the pre-pressure of the shock absorber, and the pressure sensor is connected to a pressure display.

[0010] The principle of this application:

[0011] The purchased shock absorber has perforated structures at both ends for connection. The two ends of the shock absorber are fixed to the moving seat and pressure seat respectively. The moving seat is driven to move a specific distance, shortening the length of the shock absorber and compressing the spring. The pressure generated by the spring compression is sensed by a pressure sensor on the pressure seat and displayed on a pressure display. Based on the pressure value on the pressure display, the adjustable plate on the shock absorber is manually adjusted to change the spring preload, while simultaneously observing the pressure value on the pressure display. This process continues until the adjustable plate reaches the target value on the pressure display, completing the adjustment of the shock absorber's preload. The shock absorber is then separated from the moving seat and pressure seat, and the moving seat is reset for auxiliary adjustment of the preload of the next shock absorber.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The device described in this application can assist in adjusting the preload of the shock absorber, ensuring that the preload of the purchased shock absorber can be adjusted to a preset value so that the assembled shock absorber meets the installation requirements. Even if there are differences in the shock absorber at the factory, it can be adjusted for the installation and use of the robot.

[0014] Furthermore, the movable seat is located inside the sliding sleeve on the worktable and is driven to slide a specific distance along the worktable by a driving component.

[0015] Furthermore, the driving components include a push rod and a bend rod.

[0016] One end of the push rod is hinged to the worktable, one end of the bent rod is hinged to the middle of the push rod, and the other end of the bent rod is hinged to the movable seat. The push rod rotates along the worktable so that the movable seat moves back and forth along the sliding sleeve.

[0017] Furthermore, the distance between the pressure seat and the moving seat is adjustable, allowing for the connection of shock absorbers of different lengths.

[0018] Furthermore, the pressure seat slides on the worktable via an adjusting mechanism.

[0019] Furthermore, the adjusting component includes a threaded rotating sleeve and a movable lead screw, the movable lead screw being connected to the pressure seat, and the rotating sleeve being rotatably connected to the worktable.

[0020] Furthermore, the worktable is equipped with a slide rail, and the pressure seat is slidably connected to the slide rail.

[0021] Furthermore, the movable seat and the pressure seat are each equipped with a connector, which is detachably connected to the end of the shock absorber.

[0022] The connector includes a connecting groove and a locking bolt detachably connected to the connecting groove. The locking bolt passes through a mounting hole at the end of the shock absorber. Attached Figure Description

[0023] Figure 1 This is an exploded view of the structure of this utility model and its combination with a shock absorber.

[0024] In the diagram: workbench 100, movable seat 110, pressure seat 120, adjusting component 130, movable lead screw 131, rotating sleeve 132, pressure display 140, connecting component 150, connecting groove 151, locking bolt 152, pressure sensor 160, sliding sleeve 170, driving component 180, bent rod 181, push rod 182, slide rail 190, handle 1010, shock absorber 200, adjusting plate 210. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] like Figure 1 As shown, an auxiliary adjustment device for the preload of a shock absorber includes a workbench 100 and a movable seat 110, a pressure seat 120, and a pressure display 140 disposed on the workbench 100. The movable seat 110 and the pressure seat 120 are disposed opposite to each other and are respectively used to connect the two ends of the shock absorber 200. The movable seat 110 reciprocates a specific distance on the workbench 100 to change the preload of the shock absorber 200. The pressure seat 120 is provided with a pressure sensor 160 for detecting the preload of the shock absorber 200, and the pressure sensor 160 is connected to the pressure display 140.

[0027] Understandably, the workbench 100 facilitates the installation of various components. The workbench 100 can adopt a box structure, plate structure, block structure, etc. Furthermore, the workbench 100 can be movable or fixed, depending on the usage requirements. In this application, the workbench 100 is generally a plate structure, with two handles 1010 on each side. The components are mounted on the workbench 100, making the entire device a movable structure. During use, the operator moves the workbench 100 using the two handles 1010, allowing the entire device to be moved and used according to the usage scenario.

[0028] Both the movable seat 110 and the pressure seat 120 are mounted on the surface of the worktable 100 for connecting the shock absorber 200. Therefore, the structures of the movable seat 110 and the pressure seat 120 only need to ensure connection with the shock absorber 200, such as rod-shaped or block-shaped structures. In this application, since the movable seat 110 needs to move a specific distance, and the pressure seat 120 needs to be equipped with a pressure sensor 160, the movable seat 110 is designed as a rod-shaped structure, and the pressure seat 120 is designed as a block-shaped structure. Furthermore, the movable seat 110 and the pressure seat 120 are arranged opposite each other in the horizontal direction, and after the shock absorber 200 is connected to the movable seat 110 and the pressure seat 120, all three are located on the same horizontal plane, ensuring that the movable seat 110 moves along the centerline of the shock absorber 200 to compress it. The specific distance the movable seat 110 moves on the worktable 100 is limited by the pre-pressure range of the shock absorber 200, which needs to be adjusted as needed, such as 50 kg or 70 kg. After the movable seat 110 moves, the pre-pressure reading of the shock absorber 200 is approximately 70 kg. Adjusting the adjusting plate 210 of the shock absorber 200 to bring the pre-pressure reading to 70 kg indicates that the pre-pressure adjustment of the shock absorber 200 is complete. To facilitate the detection of the shock absorber 200's pre-pressure, a pressure sensor 160 is provided on the pressure seat 120. The pressure sensor 160 can be directly connected to the end of the shock absorber 200. When the movable seat 110 presses against the other end of the shock absorber 200, the connection between the shock absorber 200 and the pressure seat 120 will detect the pre-pressure of the shock absorber 200 (the force of the spring restoring its deformation). The pressure sensor 160 is electrically connected to the pressure display 140, and the pressure value detected by the pressure sensor 160 is displayed on the pressure display 140 so that the operator can observe the pressure value and adjust the adjusting plate 210 of the shock absorber 200 to ensure that the pre-pressure of the shock absorber 200 meets the requirements.

[0029] Since the movable seat 110 in this application adopts a rod-like structure, in order to limit the movement direction of the movable seat 110 on the worktable 100, the movable seat 110 is sleeved in the sliding sleeve 170 on the worktable 100. The sliding sleeve 170 is fixedly connected to the worktable 100 by a fastener, and the orientation of the sliding sleeve 170 defines the sliding direction of the movable seat 110. Since the movable seat 110 needs to move a specific distance on the worktable 100, this application uses a driving member 180 to drive the movable seat 110 to slide a specific distance along the worktable 100.

[0030] Specifically, the driving component 180 includes a push rod 182 and a bent rod 181. One end of the push rod 182 is hinged to the worktable 100, one end of the bent rod 181 is hinged to the middle of the push rod 182, and the other end of the bent rod 181 is hinged to the movable seat 110. The push rod 182 rotates along the worktable 100, causing the movable seat 110 to reciprocate along the sliding sleeve 170. Figure 1As shown, the overall structure of the drive unit 180 adopts a quick-clamp structure with a built-in locking function. The upper part of the push rod 182 not only facilitates the movement of the push rod 182, but also enables the locking and unlocking functions between the push rod 182 and the worktable 100. In use, when the push rod 182 is moved, the maximum angle of movement of the push rod 182 is when it contacts the worktable 100 in the direction of movement, thereby limiting the reciprocating movement distance of the moving seat 110 and enabling the moving seat 110 to reciprocate a specific distance on the worktable 100.

[0031] Since the moving distance of the movable seat 110 on the worktable 100 is a fixed value, and the shock absorbers 200 to be adjusted may have different initial lengths even with the same signal due to different manufacturers, in order to facilitate the fixing of shock absorbers 200 of different lengths between the movable seat 110 and the pressure seat 120, this application sets the distance between the pressure seat 120 and the movable seat 110 to be adjustable for connecting shock absorbers 200 of different lengths.

[0032] Since the moving direction of the movable seat 110 is fixed, in order to make the distance between the movable seat 110 and the pressure seat 120 adjustable, this application moves the pressure seat 120, and the moving directions of the pressure seat 120 and the movable seat 110 are consistent. To limit the moving direction of the pressure seat 120, this application provides a slide rail 190 on the worktable 100. The length direction of the slide rail 190 is parallel to the moving direction of the movable seat 110. The slide rail 190 is fixed on the worktable 100, and the pressure seat 120 is located above the slide rail 190 and slidably connected to the slide rail 190. To facilitate the movement of the pressure seat 120, the pressure seat 120 of this application is driven to slide on the worktable 100 by an adjusting member 130. The adjusting member 130 can be manually adjusted or electrically adjusted. In this application, the adjusting member 130 is a manually adjustable structure. Specifically, as shown in the figure... Figure 1 As shown, the adjusting component 130 includes a threaded rotating sleeve 132 and a moving lead screw 131. The length direction of the moving lead screw 131 is parallel to the length direction of the slide rail 190. The moving lead screw 131 is connected to the pressure seat 120, and the rotating sleeve 132 is rotatably connected to the worktable 100. In use, rotating the rotating sleeve 132 can drive the moving lead screw 131 to move, thereby driving the pressure seat 120 to move. With the position of the moving seat 110 unchanged, the distance between the moving seat 110 and the pressure seat 120 can be changed to accommodate shock absorbers 200 of different lengths, thus increasing the applicability of this application.

[0033] Since the shock absorber 200 has connection holes at both ends, to facilitate the detachable connection of the movable seat 110, pressure seat 120, and shock absorber 200, this application provides connectors 150 on the movable seat 110 and pressure seat 120 respectively. The connectors 150 are detachably connected to the ends of the shock absorber 200. The connector 150 includes a connecting groove 151 and a locking bolt 152 detachably connected to the connecting groove 151. The locking bolt 152 passes through the mounting hole at the end of the shock absorber 200. Figure 1 As shown, when the connector 150 and the end of the shock absorber 200 are connected, the locking bolt 152 and the connecting groove 151 are separated, and the end of the shock absorber 200 is opened in the connecting groove 151. The locking bolt 152 can lock the connecting hole and the connecting groove 151 of the shock absorber 200, thereby realizing the connection between the connector 150 and the shock absorber 200.

[0034] The principle of this application:

[0035] The shock absorber 200 to be adjusted has two connected perforated structures (connecting holes) at its two ends. The two ends of the shock absorber 200 are fixed to the moving seat 110 and the pressure seat 120, respectively. The moving seat 110 is driven to move a specific distance. At this time, the length of the shock absorber 200 becomes shorter, and the spring on the shock absorber 200 is compressed. The pressure generated after the spring is compressed is sensed by the pressure sensor 160 on the pressure seat 120 and displayed on the pressure display 140. Based on the pressure value on the pressure display 140, the adjusting plate 210 on the shock absorber 200 is manually adjusted to change the preload of the spring. At the same time, the pressure value on the pressure display 140 is observed until the adjusting plate 210 moves to the value on the pressure display 140, which is the target value. The preload adjustment of the shock absorber 200 is then completed. The shock absorber 200 is then separated from the moving seat 110 and the pressure seat 120. The moving seat 110 is reset so that the preload adjustment of the next shock absorber 200 can be assisted.

[0036] The device of this application can assist in adjusting the preload of the shock absorber 200, ensuring that the preload of the shock absorber 200 to be adjusted can be adjusted to a preset value so that the assembled shock absorber 200 meets the installation requirements. Even if there are differences in the factory of the shock absorber 200, it can be adjusted for use and installation of the robot.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An auxiliary adjusting device for the precharge of a shock absorber, characterized in that: Includes a worktable (100) and a movable seat (110), a pressure seat (120), and a pressure display (140) mounted on the worktable (100). The movable seat (110) and the pressure seat (120) are arranged opposite to each other and are used to connect the two ends of the shock absorber (200); The movable seat (110) moves back and forth a specific distance on the worktable (100) to change the preload of the shock absorber (200); The pressure seat (120) is equipped with a pressure sensor (160) for detecting the pre-pressure of the shock absorber (200), and the pressure sensor (160) is connected to the pressure display (140).

2. The auxiliary adjusting device for the precharge pressure of a shock absorber according to claim 1, characterized in that: The movable seat (110) is fitted inside the sliding sleeve (170) on the worktable (100) and is driven by the drive unit (180) to slide a certain distance along the worktable (100).

3. The auxiliary adjustment device for the preload of the shock absorber according to claim 2, characterized in that: The drive component (180) includes a push rod (182) and a bend rod (181). One end of the push rod (182) is hinged to the worktable (100), one end of the bent rod (181) is hinged to the middle of the push rod (182), and the other end of the bent rod (181) is hinged to the moving seat (110). The push rod (182) rotates along the worktable (100) so that the moving seat (110) moves back and forth along the sliding sleeve (170).

4. The device for auxiliary adjustment of the precharge of a shock absorber according to any of claims 1-3, characterized in that: The distance between the pressure seat (120) and the movable seat (110) is adjustable for connecting shock absorbers (200) of different lengths.

5. The auxiliary adjusting device for the precharge pressure of a shock absorber according to claim 4, characterized in that: The pressure seat (120) is driven to slide on the worktable (100) by the adjusting element (130).

6. The auxiliary adjusting device for the precharge pressure of a shock absorber according to claim 5, characterized in that: The adjusting component (130) includes a threaded rotating sleeve (132) and a movable lead screw (131). The movable lead screw (131) is connected to the pressure seat (120), and the rotating sleeve (132) is rotatably connected to the worktable (100).

7. The auxiliary adjustment device for the preload of the shock absorber according to claim 5 or 6, characterized in that: The worktable (100) is provided with a slide rail (190), and the pressure seat (120) is slidably connected to the slide rail (190).

8. The device for auxiliary adjustment of the precharge of a shock absorber according to claim 1, 2, 3, 5 or 6, characterized in that: The movable seat (110) and the pressure seat (120) are respectively provided with connecting parts (150), and the connecting parts (150) are detachably connected to the end of the shock absorber (200). The connector (150) includes a connecting groove (151) and a locking bolt (152) detachably connected to the connecting groove (151), the locking bolt (152) being used to pass through a mounting hole at the end of the shock absorber (200).

9. The auxiliary adjusting device for the precharge pressure of a shock absorber according to claim 4, characterized in that: The movable seat (110) and the pressure seat (120) are respectively provided with connecting parts (150), and the connecting parts (150) are detachably connected to the end of the shock absorber (200). The connector (150) includes a connecting groove (151) and a locking bolt (152) detachably connected to the connecting groove (151), the locking bolt (152) being used to pass through a mounting hole at the end of the shock absorber (200).

10. The auxiliary adjusting device for the precharge pressure of a shock absorber according to claim 7, characterized in that: The movable seat (110) and the pressure seat (120) are respectively provided with connecting parts (150), and the connecting parts (150) are detachably connected to the end of the shock absorber (200). The connector (150) includes a connecting groove (151) and a locking bolt (152) detachably connected to the connecting groove (151), the locking bolt (152) being used to pass through a mounting hole at the end of the shock absorber (200).

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