Shaft distance adjusting eccentric mechanism
Through the wheelbase adjustment mechanism designed by the eccentric casting, the outer adjustment block and the inner adjustment block are connected to the bolt, solving the cumbersome and labor-intensive problems in the prior art, and achieving efficient and labor-saving adjustment of the trailer wheelbase.
Patent Information
- Application Number
- CN202422260551.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-14
AI Technical Summary
The existing trailer adjustment mechanism is cumbersome to manufacture and laborious to operate, making it difficult to adjust the wheelbase efficiently.
The wheelbase adjustment mechanism designed with an eccentric casting is connected to the bolt by the outer adjustment block and the inner adjustment block, and the eccentric hole design is used to realize simple rotation adjustment of the guide arm.
It realizes labor-saving, simplicity and efficiency in wheelbase adjustment, and the maximum range is adjusted by 6mm, reducing operational difficulty and production costs.
Smart Images
Figure CN223085779U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air suspension, in particular to an eccentric mechanism for adjusting wheelbase. Background Technique
[0002] With the development of the logistics industry, the use of trailers has gradually increased, and the use of trailer air suspensions has also become increasingly popular. The common structural forms of trailer air suspensions are diverse. Whether it is a leaf spring guide arm structure or a welded part guide arm structure, the relative position of the guide arm connected to the front bracket cannot be determined immediately during installation because the relative position between the wheelbases needs to be adjusted. Only when the wheelbase is adjusted properly can the relative position of the guide arm and the front bracket be determined. Therefore, a trailer adjustment mechanism is needed.
[0003] Most of the adjustment mechanisms widely used in the market now are relatively cumbersome adjustment mechanisms composed of nuts and welded parts. The manufacturing method of this kind of adjustment mechanism is cumbersome, and it is also relatively laborious to adjust. Since the demand for this component is large, a trailer eccentric casting adjustment mechanism with low cost and simple operation has emerged as the times require.
[0004] The old-fashioned adjustment mechanism rotates the adjusting nut to make the bolt stuck in the middle of the bracket generate a displacement in the front and back directions, driving the guide arm to move, so as to realize the adjustment of the left and right wheelbases of a single axle and the adjustment of the wheelbases between multiple axles. Since the operation space of the tires on the outside is limited after the vehicle is installed, in fact, manual use of an open-ended wrench is required to continuously rotate the hexagonal nut, and only about 2 mm can be adjusted per turn, resulting in low efficiency, time-consuming and laborious. Content of the Utility Model
[0005] The purpose of the utility model is to provide an eccentric mechanism for adjusting wheelbase to solve the problems put forward in the above background technique.
[0006] To achieve the above purpose, the utility model provides the following technical scheme: an eccentric mechanism for adjusting wheelbase, including a guide arm and a front bracket. The bottom of the front bracket is sleeved on the end of the guide arm, and the guide arm and the front bracket are connected by bolts. Both ends of the bolts extend outside the front bracket. Outer adjustment blocks and inner adjustment blocks are connected to both sides of the front bracket, and both the outer adjustment blocks and the inner adjustment blocks are sleeved on the bolts;
[0007] An adjustment opening is provided on one side of the outer adjustment block, and limit blocks installed on the front bracket are provided on both sides of the outer adjustment block.
[0008] Preferably, both the outer adjustment block and the inner adjustment block are connected to the front bracket by bolts.
[0009] Preferably, the adjustment opening is a square opening.
[0010] Preferably, the hole for the bolt to pass through the middle of the outer adjustment block is eccentrically arranged with the outer circle.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0012] 1. The hole for passing the bolt in the middle of the outer adjustment block is eccentric with the outer circle. By rotating the outer adjustment block, the guiding arm can be driven to move back and forth, so as to adjust the front and rear positions of the axle;
[0013] 2. The adjustment is simpler than the adjustment mechanism composed of a nut and a welded part. For this eccentric casting adjustment mechanism, when the outer adjustment block rotates 90 degrees, the maximum range of axle movement can be adjusted by about 6 mm. While for the adjustment mechanism composed of a nut and a welded part, the movement range of the axle is only 2 mm when the nut needs to be rotated several turns with a wrench for one circle. It can be seen that the eccentric casting adjustment mechanism is more labor-saving, simple and convenient to use;
[0014] 3. The structure is simple. The inner adjustment block and the outer adjustment block are both castings, and the mold cost is low, which is suitable for mass production. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the utility model;
[0016] Figure 2 is a schematic side structural diagram of the utility model;
[0017] Figure 3 is a schematic top structural diagram of the utility model.
[0018] In the figure: 1. Guiding arm; 2. Front bracket; 3. Bolt; 4. Outer adjustment block; 5. Inner adjustment block; 6. Adjustment opening; 7. Limit stop block. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0020] Please refer to Figures 1-3 , the present utility model provides a technical solution: an eccentric mechanism for adjusting the wheelbase, including a guiding arm 1 and a front bracket 2. The bottom of the front bracket 2 is sleeved on the end of the guiding arm 1, and the guiding arm 1 and the front bracket 2 are connected by a bolt 3. Both ends of the bolt 3 extend outside the front bracket 2. Outer adjustment blocks 4 and inner adjustment blocks 5 are connected to both sides of the front bracket 2, and both the outer adjustment blocks 4 and the inner adjustment blocks 5 are sleeved on the bolt 3;
[0021] An adjustment opening 6 is provided on one side of the outer adjustment block 4, and limit blocks 7 installed on the front bracket 2 are provided on both sides of the outer adjustment block 4.
[0022] In the present utility model, both the outer adjustment block 4 and the inner adjustment block 5 are connected to the front bracket 2 by bolts.
[0023] In the present utility model, the adjustment opening 6 is a square opening.
[0024] In the present utility model, the hole for passing the bolt 3 in the middle of the outer adjustment block 4 is eccentrically arranged with the outer circle.
[0025] In the present utility model: the front bracket has an adjustment equal to the bolt. When adjustment is needed, use a square right-angle elbow tool to insert it into the adjustment opening and rotate it clockwise or counterclockwise. Since the outer edge of the outer adjustment block is limited by the limit block, when rotating, the eccentric block drives the guide arm to move back and forth, and a full-stroke adjustment can be achieved with a maximum adjustment angle of only 90 degrees, which is convenient and fast.
[0026] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. An eccentric mechanism for wheelbase adjustment, characterized in that: It includes a guiding arm (1) and a front bracket (2). The bottom of the front bracket (2) is sleeved on the end of the guiding arm (1), and the guiding arm (1) and the front bracket (2) are connected by bolts (3). Both ends of the bolts (3) extend outside the front bracket (2). Outer adjusting blocks (4) and inner adjusting blocks (5) are connected to both sides of the front bracket (2), and both the outer adjusting blocks (4) and the inner adjusting blocks (5) are sleeved on the bolts (3). An adjusting opening (6) is formed on one side of the outer adjusting block (4), and limiting blocks (7) installed on the front bracket (2) are provided on both sides of the outer adjusting block (4).
2. The eccentric mechanism for wheelbase adjustment according to claim 1, characterized in that: Both the outer adjusting blocks (4) and the inner adjusting blocks (5) are connected to the front bracket (2) by bolts.
3. The eccentric mechanism for adjusting wheelbase according to claim 1, wherein: The adjusting opening (6) is a square opening.
4. The eccentric mechanism for adjusting wheelbase according to claim 1, characterized in that: The hole for the bolt (3) to pass through in the middle of the outer adjusting block (4) is eccentrically arranged with the outer circle.