Lock pin structure with guiding function, tractor front suspension counter weight and tractor
By designing a locking pin structure with a guiding function, including a positioning ring sleeve, a guide part, and a locking pin, the slippage problem when the tractor counterweight is connected to the suspension is solved, achieving a stable locking and guiding effect.
Patent Information
- Application Number
- CN202423209576.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In the prior art, when the tractor counterweight is connected to the suspension, relative translational slippage is prone to occur, resulting in unstable assembly.
Design a locking pin structure with guiding function, including a positioning ring sleeve, a guide part and a locking pin. The guide part guides the pull rod, and the locking pin is stably connected by a flexible connector and a limiting ring.
It achieves a stable connection of the locking pin and a guiding function of the pull rod, avoiding slippage. The structure is simple and reasonable, and improves the stability of assembly.
Smart Images
Figure CN223590864U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to agricultural machinery parts technical field, especially a kind of lock pin structure with guiding function, tractor front suspension counterweight and tractor. BACKGROUND
[0002] The counterweight block of tractor is suspended and assembled, the top of the counterweight block is provided with the pull rod frame connected with suspension, the pull rod pin connected with the lower pull rod of suspension is used on both sides of the counterweight block, then the lower pull rod is moved and suspended, and the pull rod pin is connected, since the lower pull rod can be translated, the relative translation and slippage phenomenon is prone to occur in the process of connection and assembly.
[0003] Therefore, a kind of lock pin structure with guiding function, tractor front suspension counterweight and tractor need to be developed, the limiting of the end of the connecting pin is realized, and the guiding effect of the assembly of the lower pull rod is also realized. UTILITY MODEL CONTENTS
[0004] The utility model provides a kind of lock pin structure with guiding function, tractor front suspension counterweight and tractor to overcome the defects of prior art effectively.
[0005] The technical scheme for solving the above technical problems of the utility model is as follows:
[0006] A kind of lock pin structure with guiding function, including positioning ring cover, guide portion and locking bolt, the positioning ring cover is equipped with the bolt hole that is radially through both sides, the locking bolt is through the bolt hole of both sides, the guide portion is fixed in the lower part of the positioning ring cover, the guide portion has the guide surface extending towards the one end of the positioning ring cover.
[0007] On the basis of the above technical scheme, the utility model can also be improved as follows.
[0008] Further, the guide portion is the semicircular member coaxially arranged with the positioning ring cover, and the guide portion extends in a circular arc shape from one end to the other end of the positioning ring cover.
[0009] Further, one end of the locking bolt is connected with the limiting ring rotationally assembled therewith.
[0010] Further, it further includes flexible connecting piece, and the flexible connecting piece is connected with the limiting ring and the side, away from the guide surface, of the guide portion respectively.
[0011] Further, the flexible connecting piece is metal chain.
[0012] Further, the side, away from the guide surface, of the guide portion is provided with connecting ring, and one end of the flexible connecting piece is connected with the connecting ring.
[0013] The beneficial effects are: the structural design is simple and reasonable, and it can guide other objects to a certain extent through the guide part while locking the end of the locking pin type component.
[0014] A tractor front suspension counterweight is also provided, including a counterweight block and a locking pin structure. An upper tie rod bracket is mounted on the top of the counterweight block, and lower tie rod brackets are mounted on both sides of the counterweight block. The lower tie rod bracket has a horizontally extending hook pin. The end of the hook pin away from the counterweight block is provided with a insertion hole. The positioning ring is sleeved on the end of the hook pin away from the counterweight block. The locking pin passes through the insertion hole and the pin hole. The distance between the guide portion and the side end of the counterweight block gradually decreases from the outside to the inside.
[0015] Based on the above technical solution, the present invention can be further improved as follows.
[0016] Furthermore, the aforementioned hook pin has a ball head inserted into it, and the ball head is confined between the positioning ring and the counterweight.
[0017] Furthermore, a storage slot is provided at the upper end of the aforementioned counterweight.
[0018] The beneficial effect is that, while locking and limiting the end of the hook pin, the guide part plays a guiding role in the connection and assembly of the tractor's lower lever and the hook pin.
[0019] A tractor is also provided, including a front suspension counterweight for the tractor. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the locking pin structure with guiding function of this utility model.
[0021] Figure 2 This is a side view of the locking pin structure with guiding function of this utility model;
[0022] Figure 3 This is a schematic diagram of the tractor front suspension counterweight of this utility model.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Positioning ring sleeve; 2. Guide part; 3. Locking pin; 4. Flexible connector; 5. Counterweight; 6. Lower pull rod bracket; 21. Guide surface; 31. Limiting ring; 51. Upper pull rod bracket; 61. Hanging pin; 62. Ball head. Detailed Implementation
[0025] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0026] Example 1
[0027] like Figure 1 and 2 As shown, the locking pin structure with guiding function in this embodiment includes a positioning ring sleeve 1, a guide part 2 and a locking pin 3. The positioning ring sleeve 1 is provided with pin holes that penetrate radially through both sides. The locking pin 3 penetrates the pin holes on both sides. The guide part 2 is fixed to the lower part of the positioning ring sleeve 1. The guide part 2 has a guide surface 21 that extends obliquely toward one end of the positioning ring sleeve 1.
[0028] The locking pin structure with guiding function in this embodiment is used to load the end of a pin-like component. Generally, the end of the pin-like component has a radially penetrating hole. After the positioning ring 1 is fitted onto the end of the pin-like component, the pin hole on the positioning ring 1 is aligned with the hole at the end of the pin-like component. Then, the locking pin 3 passes through both the pin hole and the hole at the end of the pin-like component. The guide part 2 is designed primarily to facilitate the downward sliding of components connected to the pin along the guide surface 21. The overall structure is simple and reasonable, and while locking the end of the pin-like component, the guide part provides a certain degree of sliding guidance for other objects.
[0029] In this embodiment, the guide portion 2 is a semi-circular component coaxially arranged with the positioning ring 1. The guide portion 2 extends in an arc shape from one end of the positioning ring 1 to the other end. More specifically, the guide portion 2 is a semi-circular component, which is similar to half a "bowl" or half a trumpet, and is fixed coaxially with the positioning ring 1.
[0030] In this embodiment, one end of the locking pin 3 is connected to a limiting ring 31 that is rotatably assembled with it. The limiting ring 31 is connected to one end of the locking pin 3 and can rotate around the locking pin 3. During assembly, the rotation of the two has a certain damping effect, so that the limiting ring 31 can remain in the current position after rotating relative to the locking pin 3.
[0031] In this embodiment, a flexible connector 4 is also included. The flexible connector 4 connects the limiting ring 31 and the guide portion 2 to the side opposite to the guide surface 21. By connecting the limiting ring 31 and the guide portion 2 with the flexible connector 4, the locking pin 3 can be suspended on the guide portion 2 by the flexible connector 4 before insertion, making it less likely to be lost.
[0032] In this embodiment, the flexible connector 4 is a metal chain.
[0033] In this embodiment, a connecting ring is provided on the side of the guide portion 2 opposite to the guide surface 21, and one end of the flexible connector 4 is connected to the connecting ring. The design of the connecting ring facilitates the connection between the end of the flexible connector 4 and the guide portion 2.
[0034] In this embodiment, a limiting head is provided at one end of the locking pin 3, and the limiting ring 31 is rotatably connected to the limiting head. The cross-sectional area of the limiting head is larger than the area of the pin hole. Combined with the insertion of the locking pin 3 at the other end of the locking pin 3, the locking pin 3 will not easily disengage from the pin hole, thus achieving good locking.
[0035] Example 2
[0036] like Figure 3 As shown, the tractor front suspension counterweight of this embodiment includes a counterweight block 5 and a locking pin structure with a guiding function as in embodiment 1. The top of the counterweight block 5 is equipped with an upper pull rod bracket 51, and the two sides of the counterweight block 5 are respectively equipped with lower pull rod brackets 6. The lower pull rod bracket 6 has a horizontally extending hook pin 61. The end of the hook pin 61 away from the counterweight block 5 is provided with a hole. The positioning ring sleeve 1 is fitted onto the end of the hook pin 61 away from the counterweight block 5. The locking pin 3 passes through the hole and the pin hole. The distance between the guide part 2 and the side end of the counterweight block 5 gradually decreases from the outside to the inside.
[0037] In this embodiment, the tractor front suspension counterweight and tractor front suspension loading are specifically configured such that the end of the upper tie rod of the tractor front suspension is pinned to the upper tie rod bracket 51 at the upper end of the counterweight block 5, and the ends of the two lower tie rods of the front suspension are respectively hooked to the hook pins 61. During the hooking assembly, the ends of the lower tie rods can slide along the guide part 2 to the lower part of the hook pin 61 to complete the hooking. At the same time, the ends of the lower tie rods are restricted between the guide part 2 and the side end of the counterweight block 5 to prevent translational detachment.
[0038] In this embodiment, a ball head 62 is inserted into the hook pin 61, and the ball head 62 is confined between the positioning ring sleeve 1 and the counterweight block 5. Specifically, the end of the front suspension pull rod is provided with a ball socket that matches the ball head 62. During assembly, the end of the pull rod slides along the guide surface 21 of the guide part 2 to the ball socket and engage with the ball head 62, thereby achieving positioning and assembly of the two. At the same time, the guide part 2 is used to limit the horizontal movement of the pull rod after assembly.
[0039] It should be noted that after the locking pin structure and counterweight 5 are assembled, the guide part 2 is located at the lower part of the positioning ring sleeve 1, because the front suspension pull rod slides obliquely from the lower part along the guide surface 21 to its end ball joint and ball head 62. Generally, the end of the pull rod is hook-shaped and semi-enclosed, "hooked" on the outside of the hook pin 61.
[0040] In this embodiment, the upper end of the counterweight 5 is provided with a storage slot. Agricultural machinery parts and tools can be loaded into the storage slot. An openable or closable cover can also be provided on the upper part of the storage slot.
[0041] In this embodiment, the cross-section of the counterweight 5 is approximately semi-circular or trapezoidal.
[0042] Example 3
[0043] The tractor in this embodiment includes the front suspension counterweight of the tractor in embodiment 2.
[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0046] 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0047] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0049] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A locking pin structure with guiding function, characterized in that: It includes a positioning ring sleeve (1), a guide part (2) and a locking pin (3). The positioning ring sleeve (1) is provided with pin holes that penetrate radially through both sides. The locking pin (3) penetrates the pin holes on both sides. The guide part (2) is fixed to the lower part of the positioning ring sleeve (1). The guide part (2) has a guide surface (21) that extends obliquely toward one end of the positioning ring sleeve (1).
2. The locking pin structure with guiding function according to claim 1, characterized in that: The guide part (2) is a semi-circular component coaxially arranged with the positioning ring (1). The guide part (2) extends in an arc shape from one end of the positioning ring (1) to the other end.
3. The locking pin structure with guiding function according to claim 1, characterized in that: One end of the locking pin (3) is connected to a limiting ring (31) that is rotatably assembled with it.
4. A locking pin structure with guiding function according to claim 3, characterized in that: It also includes a flexible connector (4), which connects the limiting ring (31) and the guide portion (2) to the side away from the guide surface (21).
5. A locking pin structure with guiding function according to claim 4, characterized in that: The flexible connector (4) is a metal chain.
6. A locking pin structure with guiding function according to claim 4, characterized in that: The guide part (2) has a connecting ring on the side opposite to the guide surface (21), and one end of the flexible connector (4) is connected to the connecting ring.
7. A tractor front suspension counterweight, characterized in that: The device includes a counterweight (5) and a locking pin structure with a guiding function as described in any one of claims 1 to 6. The counterweight (5) is equipped with an upper pull rod bracket (51) on its top and lower pull rod brackets (6) on both sides of the counterweight (5). The lower pull rod bracket (6) has a horizontally extending hook pin (61). The end of the hook pin (61) away from the counterweight (5) is provided with a hole. The positioning ring sleeve (1) is fitted onto the end of the hook pin (61) away from the counterweight (5). The locking pin (3) passes through the hole and the pin hole. The distance between the guide part (2) and the side end of the counterweight (5) gradually decreases from the outside to the inside.
8. A tractor front suspension counterweight according to claim 7, characterized in that: A ball head (62) is inserted into the hook pin (61), and the ball head (62) is restricted between the positioning ring (1) and the counterweight (5).
9. A tractor front suspension counterweight according to claim 7, characterized in that: The counterweight (5) has a storage slot at its upper end.
10. A tractor, characterized in that: Includes the tractor front suspension counterweight as described in any one of claims 7 to 9.