Guide arm adjustment device and adjustment method thereof

Abstract

A guide arm adjustment device includes a sleeve and an adjustment gasket. The sleeve is in the shape of a circular pancake, and a boss is fixed on both opposite sides thereof. The inner side surfaces of the two bosses are arranged along the Y-axis direction. The area between the two bosses is a gasket area. The gasket area is provided with a strip hole, and the strip hole is arranged along the X-axis direction. The adjustment gasket is located in the gasket area; the adjustment gasket is prismatic as a whole. The present invention also discloses an adjustment method using the above-mentioned guide arm adjustment device. Compared with the prior art, the technical effect of the present invention is that the adjustment gasket of the present invention is polygonal, and is provided with a circular hole. The bolt will not slide in the circular hole, so the guide arm and the bracket are very stable after adjustment.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle suspension, and relates to a guide arm adjustment device and an adjustment method thereof. Background Art

[0002] Currently, in the vehicle suspension system, the guide arm is connected to the frame through a bracket. In order to calibrate the axle, it is necessary to fine-tune the connection between the guide arm and the bracket.

[0003] For example, the Chinese patent application number CN202011092087.1 discloses a guide arm adjustment device, which is provided with a sleeve 12, an adjusting gasket 13 and a bolt 14. The end of the guide arm is hinged to the bracket through the sleeve 12 and the bolt 14 and fixed on the bracket. By changing the relative position of the adjusting gasket 13 and the sleeve 12, the relative position of the bolt 14 and the end of the guide arm relative to the sleeve 12 is also changed, thereby achieving the above-mentioned fine-tuning. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the adjusting gasket is provided with a strip-shaped oblique adjusting hole. After such adjustment, the bolt 14 may still slide in the strip-shaped oblique adjusting hole, and the guide arm and the bracket are not stable.

[0005] The technical solution of the present invention is specifically as follows:

[0006] A guide arm adjustment device comprises a shaft sleeve and an adjustment gasket, wherein the shaft sleeve is in a round cake shape, and a boss is fixed on both opposite sides of the shaft sleeve, the inner side surfaces of the two bosses are arranged along the Y-axis direction, the area between the two bosses is a gasket area, the gasket area is provided with a strip hole, the strip hole is arranged along the X-axis direction, and the adjustment gasket is located in the gasket area;

[0007] The adjusting gasket is prismatic as a whole, and its bottom surface is a 2n-sided shape, where n is an integer greater than or equal to 2. The adjusting gasket is provided with a cylindrical through hole along the height direction of the adjusting gasket, and the 2n side surfaces of the adjusting gasket are sequentially recorded as: a1, a2, ..., a 2n , each side surface is a parallel plane to the side surface opposite to it;

[0008] The distances from the through hole to each side of the adjusting gasket are recorded as: d1, d2, ..., d 2n , the distance from the center of the through hole to each side of the adjusting gasket is recorded as: D1, D2, ..., D 2n , the distance from the through hole to each side is equal to the distance from the center of the through hole to each side minus the radius r of the through hole, that is:

[0009] d1=D1-r,

[0010] d2=D2-r,

[0011] …

[0012] d 2n =D 2n –r;

[0013] The distance between the two inner sides is N, the width of the strip hole is m, and it also satisfies:

[0014] D x+Dx+n +r + r =N, x is an integer between 1 and n,

[0015] r + r = m,

[0016] d x ≠ d x+n , x is an integer between 1 and n.

[0017] d1, d2, …, d 2n Any two of them are not equal.

[0018] Sort them according to the distance from the through hole to each side of the adjusting gasket. Mark "1" on the bottom surface of the adjusting gasket at the position corresponding to the smallest gear, mark "2" on the bottom surface of the adjusting gasket at the position corresponding to the second smallest gear, and so on. Mark "2n" on the bottom surface of the adjusting gasket at the position corresponding to the largest gear.

[0019] When the adjusting gasket is located in the gasket area, the outer surface of the adjusting gasket and the outer surface of the boss are in the same plane.

[0020] A method for adjusting a guide arm adjusting device, using the guide arm adjusting device, placing a shaft sleeve in a mounting hole of a bracket, making the strip hole arranged along the X-axis direction, selecting a suitable gear position corresponding to a side facing a side of the guide arm, placing an adjusting gasket in a gasket area, making the contact between the adjusting side surface and the side surface opposite thereto and the two inner side surfaces respectively be surface contact, and passing a bolt for hingedly connecting the guide arm and the bracket through the through hole and the strip hole;

[0021] In the X-axis direction: the bolt is inserted into the through hole, and its position is limited by the adjusting gasket, and the adjusting gasket is blocked by two bosses. The position of the adjusting gasket is limited by the bosses, and the sleeve is in the mounting hole of the bracket, and the position of the sleeve is also limited, and the bolt is limited in the X-axis direction;

[0022] In the Y-axis direction: the bolt is inserted into the strip hole, and the bolt contacts the two hole walls in the strip hole. Its position is limited by the sleeve, and the sleeve is in the mounting hole of the bracket, and the position of the sleeve is also limited;

[0023] The bolts are fixed in both the X-axis direction and the Y-axis direction;

[0024] If the gear is too large, select a smaller gear to face the guide arm and repeat the above steps; if the gear is too small, select a larger gear to face the guide arm and repeat the above steps until it is adjusted appropriately.

[0025] Compared with the prior art, the technical effect of the present invention is that the adjusting gasket of the present invention is polygonal and is provided with a circular hole, and the bolt will not slide in the circular hole, so the guide arm and the bracket are very stable after adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the present invention.

[0027] Figure 2 This is an enlarged schematic diagram of the sleeve.

[0028] Figure 3 This is an enlarged schematic diagram of the adjustment gasket.

[0029] Figure 4 This is an enlarged top view of the adjusting gasket (a).

[0030] Figure 5 This is an enlarged top view of the adjusting gasket (II).

[0031] Figure 6 Schematic diagram of the processing of adjusting gaskets. DETAILED DESCRIPTION

[0032] For the sake of convenience, in this specification, the axial direction of the guide arm is the X-axis direction, the axial direction of the bolt (or the round hole of the adjusting gasket) is the Z-axis direction, and the other direction is the Y-axis direction. The above-mentioned fine-tuning is to adjust the relative position of the bolt and the end of the guide arm (the two are relatively fixed) relative to the sleeve in the X-axis direction.

[0033] like Figure 1-5 A guide arm adjustment device includes a sleeve 10 and an adjustment gasket 20. The sleeve 10 is in the shape of a round cake, and a boss 11 is fixed on both opposite sides thereof. The inner side surfaces 111 of the two bosses 11 are arranged along the Y-axis direction. The area between the two bosses 11 is a gasket area 13. The gasket area 13 is provided with a strip hole 12. The strip hole 12 is arranged along the X-axis direction. The adjustment gasket 20 is located in the gasket area 13.

[0034] like Figure 3-5 The adjusting gasket 20 is prism-shaped as a whole, with a height of h and a bottom surface of 2n-gonal shape, where n is an integer greater than or equal to 2. When n is equal to 2, the bottom surface is quadrilateral; when n is equal to 3, the bottom surface is hexagonal, and so on. The adjusting gasket 20 is provided with a cylindrical through hole 21 along the height direction of the adjusting gasket 20. The 2n side surfaces of the adjusting gasket 20 are sequentially recorded as: a1, a2, ..., a 2n , each side (which can be denoted as ax ) and its opposite side (which can be denoted as a x+n ) are parallel planes. For example, in an octagonal prism, a1 is parallel to the opposite side a5, a2 is parallel to the opposite side a6, a3 is parallel to the opposite side a7, and a4 is parallel to the opposite side a8.

[0035] like Figure 5 The distances from the through hole 21 to each side of the adjusting gasket 20 are recorded as: d1, d2, ..., d 2n The distances from the center of the through hole 21 to each side of the adjusting gasket 20 are recorded as: D1, D2, ..., D 2n , the distance from the through hole 21 to each side is equal to the distance from the center of the through hole 21 to each side minus the radius r of the through hole 21, that is:

[0036] d1=D1-r,

[0037] d2=D2-r,

[0038] …

[0039] d 2n =D 2n –r.

[0040] The distance between the two inner sides 111 is N, the width of the strip hole 12 is m, and the following conditions are satisfied:

[0041] D x+Dx+n +r + r =N, x is an integer between 1 and n, so that the adjusting gasket 20 can be stuck in the shaft sleeve 10;

[0042] r + r = m,

[0043] d x ≠ d x+n , x is an integer between 1 and n (including 1 and n).

[0044] In order to have more adjustment gears, d1, d2, ..., d 2n Any two of them are not equal, so there are 2n adjustment gears.

[0045] like Figure 1 In order to facilitate bolt tightening, when the adjusting gasket 20 is located in the gasket area 13, the outer surface of the adjusting gasket 20 and the outer surface of the boss 11 are in the same plane.

[0046] like Figure 4For the convenience of adjustment, the distances from the through hole 21 to each side of the adjusting gasket 20 are sorted, and "1" (see the reference numeral 28) is marked on the bottom surface of the adjusting gasket 20 at the position corresponding to the smallest gear (that is, the distance from the through hole 21 to each side of the adjusting gasket 20 is the smallest), and "2" is marked on the bottom surface of the adjusting gasket 20 at the position corresponding to the second smallest gear (that is, the distance from the through hole 21 to each side of the adjusting gasket 20 is the second smallest). Similarly, "2n" is marked on the bottom surface of the adjusting gasket 20 at the position corresponding to the largest gear (that is, the distance from the through hole 21 to each side of the adjusting gasket 20 is the largest). In this way, when a certain gear is not suitable, a larger gear or a smaller gear can be selected in a targeted manner.

[0047] When processing the adjusting gasket 20:

[0048] like Figure 6 , select a rectangular plate 90, draw a marking line A91 corresponding to the through hole 21, and then draw a marking line B92 corresponding to the outer contour of the adjusting gasket 20, and cut along the marking line A91 and the marking line B92, which is also relatively convenient.

[0049] Its working principle is:

[0050] When it is used, the sleeve 10 is placed in the mounting hole of the bracket, the strip hole 12 is arranged along the X-axis direction (the axial direction of the guide arm), the side corresponding to the appropriate gear position (hereinafter referred to as the adjustment side) is selected to face the side of the guide arm, the adjustment gasket 20 is located in the gasket area 13, the contact between the adjustment side and its opposite side and the two inner sides 111 is surface contact, and the bolts (not shown in the figure) for hingedly connecting the guide arm and the bracket pass through the through hole 21 and the strip hole 12.

[0051] At this time, see Figure 1 , the bolts are set along the Z axis.

[0052] Bolt in the X-axial direction: Since the bolt passes through the through hole 21, its position is limited by the adjusting gasket 20, and the adjusting gasket 20 is blocked by two bosses 11. Therefore, the position of the adjusting gasket 20 is limited by the bosses 11, and the sleeve 10 is in the mounting hole of the bracket, and the position of the sleeve 10 is also limited. Therefore, the bolt is limited in the X-axial direction.

[0053] Bolt in the Y-axial direction: Since the bolt is passed through the strip hole 12, the width of the strip hole 12 (the distance between the two hole walls of the strip hole in the Y-axial direction) is the same as the diameter of the through hole 21. The bolt is in contact with both hole walls of the strip hole 12, and its position is limited by the sleeve 10. The sleeve 10 is in the mounting hole of the bracket, and the position of the sleeve 10 is also limited. Therefore, the bolt is limited in the Y-axial direction.

[0054] In this way, the bolt is fixed in both the X-axial direction and the Y-axial direction, the bolt is very stable, and the guide arm connected with the bolt is also very stable.

[0055] If the gear is too large, select a smaller gear to face the guide arm and repeat the above steps; if the gear is too small, select a larger gear to face the guide arm and repeat the above steps until it is adjusted appropriately.

[0056] When the above-mentioned gear position is changed, the position of the bolt in the strip direction in the strip hole is actually adjusted, thereby achieving the distance adjustment between the guide arm and the bracket.

[0057] For other contents, please refer to the prior art.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, which should also be regarded as the scope of protection of the present invention.

Claims

1. A guide arm adjustment device, comprising a shaft sleeve (10) and an adjustment gasket (20), wherein the shaft sleeve (10) is in the shape of a round cake, and a boss (11) is fixed on both opposite sides thereof, and characterized in that: The inner side surfaces (111) of the two bosses (11) are arranged along the Y-axis direction, the area between the two bosses (11) is a gasket area (13), the gasket area (13) is provided with a strip hole (12), the strip hole (12) is arranged along the X-axis direction, and the adjustment gasket (20) is located in the gasket area (13); The adjusting gasket (20) is prism-shaped as a whole, and its bottom surface is a 2n-sided shape, where n is an integer greater than or equal to 2. The adjusting gasket (20) is provided with a cylindrical through hole (21) along the height direction of the adjusting gasket (20), and the 2n side surfaces of the adjusting gasket (20) are sequentially recorded as: a1, a2, ..., a 2n , each side surface is a parallel plane to the side surface opposite to it; The distances from the through hole (21) to each side of the adjusting gasket (20) are recorded as: d1, d2, ..., d 2n , the distances from the center of the through hole (21) to each side of the adjusting gasket (20) are recorded as: D1, D2, ..., D 2n , the distance from the through hole (21) to each side surface is equal to the distance from the center of the through hole (21) to each side surface minus the radius r of the through hole (21), that is: d1=D1-r, d2=D2-r, … d 2n =D 2n –r; The distance between the two inner side surfaces (111) is N, the width of the strip hole (12) is m, and the following conditions are satisfied: D x + D x+n +r + r =N, x is an integer between 1 and n, r + r = m， d x ≠ d x+n , x is an integer between 1 and n; d1, d2, …, d 2n Any two of them are not equal; When the adjusting gasket (20) is located in the gasket area (13), the outer surface of the adjusting gasket (20) and the outer surface of the boss (11) are in the same plane.

2. A method for adjusting a guide arm adjusting device, characterized in that: Use the guide arm adjustment device as claimed in claim 1; The adjusting pads (20) are arranged in order according to the distance from the through hole (21) to each side surface thereof, with "1" being marked on the bottom surface of the adjusting pad (20) at the position corresponding to the smallest gear, "2" being marked on the bottom surface of the adjusting pad (20) at the position corresponding to the second smallest gear, and so on, with "2n" being marked on the bottom surface of the adjusting pad (20) at the position corresponding to the largest gear; Place the shaft sleeve (10) in the mounting hole of the bracket so that the strip hole (12) is arranged along the X-axis direction, select the side corresponding to the appropriate gear position to face the side of the guide arm, place the adjustment gasket (20) in the gasket area (13), adjust the side surface and the side surface opposite thereto to form surface contact with the two inner side surfaces (111), and pass the bolts for hingedly connecting the guide arm and the bracket through the through hole (21) and the strip hole (12); In the X-axial direction: the bolt is inserted into the through hole (21), and its position is limited by the adjusting gasket (20), and the adjusting gasket (20) is blocked by the two bosses (11). The position of the adjusting gasket (20) is limited by the bosses (11), and the shaft sleeve (10) is in the mounting hole of the bracket, and the position of the shaft sleeve (10) is also limited, and the bolt is limited in the X-axial direction; In the Y-axis direction: since the bolt is inserted into the strip hole (12), the bolt contacts both hole walls in the strip hole (12), and its position is limited by the shaft sleeve (10). The shaft sleeve (10) is in the mounting hole of the bracket, and the position of the shaft sleeve (10) is also limited; The bolts are fixed in both the X-axis direction and the Y-axis direction; If the gear is too large, select a smaller gear to face the guide arm and repeat the above steps; if the gear is too small, select a larger gear to face the guide arm and repeat the above steps until it is adjusted appropriately.

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