Anti-loose hinge structure
By designing an anti-loose hinge structure in the articulated structure of the engineering machinery, and using the combination of septa, variable diameter sleeve opening and fastening sleeve ring, the wear and shaking of the articulated structure in the prior art is solved, and a more stable connection is achieved.
Patent Information
- Application Number
- CN202421766870.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The existing engineering machinery articulated structures are prone to wear the pin shaft or shaft holes when used, and due to the existence of gaps, the whole machine will shake greatly, affecting stability.
An anti-loose hinged structure is designed. By providing a spacer, a variable diameter sleeve opening and a fastening sleeve ring on the pin shaft, the tapered structure and side opening of the fastening sleeve ring are used to fill the gap of the shaft hole to prevent loosening and shaking.
It effectively prevents structure shaking, enhances connection stability, reduces wear of pins and shaft holes, and extends the service life of the equipment.
Smart Images
Figure CN222963172U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of articulated structures of construction machinery, and specifically refers to an anti-loosening articulated structure. Background Technique
[0002] At present, the articulation of construction machinery structural parts generally adopts pin connection, and the clearance tolerance is adopted for the fit between the pin and the hole of the structural part.
[0003] However, the following problems exist in its use: Since the structural parts often need to perform moving actions, it is easy to cause large wear of the pin or the shaft hole. Although it needs to be frequently replaced or repaired, and due to the gap between the pin and the shaft hole, it is easy to cause large shaking of the whole machine during operation. Content of the Utility Model
[0004] (1) Problems to be Solved
[0005] The technical problem to be solved by the utility model is to overcome the above technical defects and provide an anti-loosening articulated structure that can prevent the structure from shaking and has strong stability after connection.
[0006] (2) Technical Solution
[0007] To solve the above technical problem, the technical solution provided by the utility model is: an anti-loosening articulated structure, including a pin, a spacer is sleeved on the pin, variable-diameter socket openings are provided at both ends of the pin, a fastening collar is sleeved on the variable-diameter socket openings, and a bolt is connected to the variable-diameter socket openings.
[0008] As an improvement, the diameter of the variable-diameter socket opening gradually decreases from outside to inside, a side opening is provided on the fastening collar, and one side of the inner hole of the fastening collar is tapered.
[0009] As an improvement, a screw groove for cooperating with the bolt is concavely provided at the end of the variable-diameter socket opening, and a retaining ring is also sleeved on the bolt.
[0010] As an improvement, the pin, the spacer, the fastening collar and the retaining ring are all made of steel.
[0011] (3) Beneficial Effects
[0012] The advantages of the utility model compared with the prior art are as follows: In this application, by performing variable-diameter treatment on both sections of the pin, the gap between the fastening collar and the shaft hole on the equipment can be filled by changing the fastening collar through the tapered opening and the fastening collar cooperating with it during the installation and use of the pin, thereby preventing loosening and shaking and ensuring the normal use of the equipment. Description of the Drawings
[0013] Figure 1 It is a schematic structural diagram of an anti-loosening articulated structure.
[0014] Figure 2Schematic diagram of the structure of a loosening-preventing hinge structure during use Figure 1 。
[0015] Figure 3 Schematic diagram of the structure of a loosening-preventing hinge structure during use Figure 2 。
[0016] As shown in the figure: 1. Bolt; 2. Retaining ring; 3. Tightening collar; 4. Spacer gasket; 5. Pin shaft; 6. Side opening; 7. Reducing socket Specific implementation mode
[0017] The following further illustrates the specific implementation mode of the present utility model with reference to the attached drawings. The same parts are denoted by the same reference numerals.
[0018] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the attached drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.
[0019] It should be noted that when an element is referred to as "fixedly provided on" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0021] In order to make the content of the present utility model more clearly understood, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the attached drawings in the embodiments of the present utility model.
[0022] Please refer specifically to the attached Figures 1-3 , A loosening-preventing hinge structure includes a bolt 1, a retaining ring 2, a tightening collar 3, a spacer gasket 4, a pin shaft 5, a side opening 6, and a reducing socket 7.
[0023] The specific connection method is as follows: The spacer gasket 4 is placed on both sides of the leg shaft seat to separate the leg and the leg seat. The pin shaft 5 passes through the leg and the leg seat. Tightening collars 3 are respectively sleeved on both sides of the pin shaft 5. A retaining ring 2 is placed on the end face of the tightening collar 3 and then the bolt 1 is tightened.
[0024] Specific implementation process:
[0025] The spacer 4 is made of high-strength steel and placed between the support leg and the support leg seat, making it easier for the support leg and the support leg seat to move, avoiding wear caused by frequent movement of the support leg and the support leg seat, and increasing the service life of the support leg and the support leg seat. The two ends of the pin shaft 5 are provided with stepped sleeve openings 7, which are conical structures and are provided with screw holes, and can easily pass through the shaft holes of the support leg and the support leg seat. The inner hole of the fastening collar 3 has a taper and is provided with a side opening 6. After the fastening collar 3 is sleeved on the pin shaft, by tightening the bolt 1, the retaining ring 2 is pushed into the fastening collar 3. Due to the tapers of both the stepped sleeve opening 7 and the fastening collar 3, the more the fastening collar 3 is pushed in, the more it expands until the fastening collar tightens the shaft hole without any gap.
[0026] The inner hole of the fastening collar 3 has a taper and is provided with a side opening 6, making it easy to install the fastening collar 3 on the pin shaft 5. And as the fastening collar 3 is pushed in, the outer diameter of the fastening collar 3 expands more and more until the fastening collar 3 tightens the shaft hole without any gap, avoiding wear between the pin shaft and the shaft hole.
[0027] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.
[0028] All the standard parts used in the present utility model can be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.
[0029] The above describes the present utility model and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the creative purpose of the present utility model, design similar structural manners and embodiments to this technical solution without creative efforts, they shall all fall within the protection scope of the present utility model.
Claims
1. An anti-loosening hinge structure, characterized in that: The invention comprises a pin shaft (5), a spacer (4) is sleeved on the pin shaft (5), reducing sleeves (7) are provided at both ends of the pin shaft (5), a fastening ring (3) is sleeved on the reducing sleeve (7), and a bolt (1) is connected to the reducing sleeve (7).
2. The anti-loosening hinge structure according to claim 1, characterized in that: The diameter of the reducing sleeve (7) gradually decreases from the outside to the inside, the fastening collar (3) is provided with a side opening (6), and one side of the inner hole of the fastening collar (3) is tapered.
3. The anti-loosening hinge structure according to claim 2, characterized in that: The end of the reducing sleeve (7) is provided with a screw groove which matches the bolt (1), and a retaining ring (2) is sleeved on the bolt (1).
4. The anti-loosening hinge structure according to claim 1, characterized in that: The pin shaft (5), the spacer (4), the fastening collar (3) and the retaining ring (2) are all made of steel.