Wear-resistant positioning pin for automobile bearing
By designing protection mechanisms and limiting mechanisms in automotive bearing positioning pins, the problem of insufficient wear resistance of existing positioning pins is solved, and a higher service life and more stable bearing operation are achieved.
Patent Information
- Application Number
- CN202421995414.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-17
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-08-17
AI Technical Summary
The wear resistance of existing automobile bearing positioning pins is insufficient, which can easily lead to wear, looseness and failure, affecting the normal operation and service life of the bearing.
A positioning pin for wear-resistant automotive bearings including a protection mechanism and a limiting mechanism is designed. The protection mechanism reduces direct wear through the fit of the slide groove and the resisting slide; the limiting mechanism ensures the stable position and high-precision position of the positioning pin rod through precise control of the threaded rod and the positioning screw.
It effectively improves the wear resistance and service life of the positioning pin, ensures the stability and precise position of the bearing, avoids loosening caused by vibration or impact, and improves the overall durability and vibration resistance.
Smart Images
Figure CN222848482U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of positioning pins, in particular to a wear-resistant positioning pin for automobile bearings. Background Art
[0002] Automobile bearings are one of the key parts of automobiles. They are mainly used to support rotating parts of automobiles, reduce friction and wear during movement, and ensure the accuracy of rotation and the smoothness of movement. In modern automobiles, bearings are widely used in engines, gearboxes, chassis and other parts, and are an important component for the smooth operation of automobiles. Locating pins are a commonly used mechanical connection element, mainly used to ensure that two or more parts can be accurately aligned and positioned during assembly. It limits the degrees of freedom of the parts to ensure that the relative position between the parts remains correct and stable, thereby meeting strict assembly requirements.
[0003] Since automobile bearings are subjected to high temperature, high pressure and high-speed operation during operation, the existing locating pins have insufficient wear resistance, which can easily lead to wear, looseness or even failure, affecting the normal operation of the bearings. In addition, during the operation of the automobile, the positioning accuracy of the locating pins has an important influence on the stability and service life of the bearings. The positioning accuracy of the existing locating pins is low, which can easily cause unstable operation of the bearings and reduce their service life. Utility Model Content
[0004] The utility model aims to provide a wear-resistant positioning pin for automobile bearings to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant positioning pin for automobile bearings, comprising a bearing body, a positioning pin rod is arranged in the middle of the bearing body, a protective mechanism is arranged in the middle of the positioning pin rod, and limiting mechanisms are arranged on the left and right sides of the positioning pin rod, and the protective mechanism comprises a slide groove, a resisting slider, a snap groove, a first guide groove, a first slider, a second guide groove and a second slider, a slide groove is arranged in the middle of the positioning pin rod, a resisting slider is arranged on the inner side of the slide groove, and a snap groove is opened at the left end of the resisting slider, and the six slide grooves are evenly surrounded on the positioning pin rod with the midpoint of the positioning pin rod as the axis, and a resisting slider is arranged inside each of the slide grooves.
[0006] Optionally, a first guide groove and a second guide groove are provided on the inner wall of the slide groove, the first slide block is fixedly mounted on the front end of the resisting slide block, and the second slide block is fixedly mounted on the rear end of the resisting slide block.
[0007] Optionally, the first sliding block is slidably connected to the first guide groove, and the second sliding block is slidably connected to the second guide groove.
[0008] Optionally, the limiting mechanism includes a threaded push rod, an extrusion head, a hexagonal groove, a first thread groove, a first positioning screw, a second thread groove and a second positioning screw, and the inner side of the positioning pin is threadedly connected to the threaded push rod.
[0009] Optionally, an extrusion head is fixedly mounted on the left end of the threaded push rod, and a hexagonal groove is formed on the right end of the threaded push rod.
[0010] Optionally, a first thread groove and a second thread groove are provided on the right side of the positioning pin rod, the inner side of the first thread groove is threadedly connected to a first positioning screw rod, and the inner side of the second thread groove is threadedly connected to a second positioning screw rod.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] In the utility model, a protection mechanism and a limiting mechanism are provided. The protection mechanism effectively improves the wear resistance of the locating pin, especially in the harsh working environment of high temperature, high pressure and high-speed operation. The cooperation of the slope structure of the resisting slide block and the slide groove reduces direct wear and prolongs the service life of the locating pin. Under the limiting action of the first slide block and the second slide block, the resisting slide block ensures the stable positioning of the locating pin rod in the bearing body and avoids loosening due to vibration or impact. The first guide groove and the second guide groove of the protection mechanism enable the resisting slide block to move smoothly, which is convenient for the installation and maintenance of the locating pin rod; the limiting mechanism and the protection mechanism complement each other. Through the precise control of the first positioning screw and the second positioning screw, the precise position of the locating pin rod in the bearing body is guaranteed, and the positioning accuracy is improved. The stability of the threaded resist rod is strengthened by the fixation of the first positioning screw and the second positioning screw, which further improves the overall durability of the locating pin. The limiting mechanism enhances the vibration resistance of the locating pin, maintains the stability of the locating pin rod, and avoids failure caused by vibration. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model in a three-dimensional front view;
[0014] Figure 2 It is a schematic diagram of the structure of the utility model from a plan view;
[0015] Figure 3 It is a schematic diagram of the structure of the utility model in a plane right view;
[0016] Figure 4 The structure of the utility model is shown in a three-dimensional cutaway view. Figure 1 ;
[0017] Figure 5 It is a schematic diagram of the structure of the utility model in a planar cross-section;
[0018] Figure 6The structure of the utility model is shown in a three-dimensional cutaway view. Figure 2 ;
[0019] Figure 7 The structure of the utility model is shown in a three-dimensional cutaway view. Figure 3 ;
[0020] Figure 8 It is a three-dimensional enlarged structural schematic diagram of A in Tu 7 of the utility model.
[0021] In the figure: 1. bearing body; 2. positioning pin rod; 3. protection mechanism; 301. slide groove; 302. blocking slider; 303. buckle groove; 304. first guide groove; 305. first slider; 306. second guide groove; 307. second slider; 4. limiting mechanism; 401. threaded supporting rod; 402. extrusion head; 403. hexagonal groove; 404. first thread groove; 405. first positioning screw; 406. second thread groove; 407. second positioning screw. DETAILED DESCRIPTION
[0022] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] See also Figures 1 to 8 In the embodiment of the utility model, a wear-resistant positioning pin for automobile bearings includes a bearing body 1, a positioning pin rod 2 is arranged in the middle of the bearing body 1, a protection mechanism 3 is arranged in the middle of the positioning pin rod 2, and a limiting mechanism 4 is arranged on the left and right sides of the positioning pin rod 2. The protection mechanism 3 includes a slide groove 301, a blocking slider 302, a buckle groove 303, a first guide groove 304, a first slider 305, a second guide groove 306 and a second slider 307. The middle of the positioning pin rod 2 is provided with a slide groove 301, and the inner side of the slide groove 301 is provided with a blocking slider 302, and the blocking slider 303 is provided with a locking mechanism 4. A buckle groove 303 is provided at the left end of the block 302, and six slide grooves 301 are evenly surrounded on the positioning pin rod 2 with the midpoint of the positioning pin rod 2 as the axis. A resisting slider 302 is provided inside each slide groove 301, and a first guide groove 304 and a second guide groove 306 are provided on the inner wall of the slide groove 301. A first slider 305 is fixedly installed at the front end of the resisting slider 302, and a second slider 307 is fixedly installed at the rear end of the resisting slider 302. The first slider 305 is slidably connected to the first guide groove 304, and the second slider 307 is slidably connected to the second guide groove 306;
[0026] The slide groove 301 provides a stable moving path for the resisting slider 302, which helps to guide the resisting slider 302 to move accurately and improve the installation accuracy of the positioning pin rod 2. The sloped structure of the resisting slider 302 optimizes the contact mode with the extrusion head 402 and improves the extrusion efficiency. When running at high speed, the resisting slider 302 can effectively resist the displacement caused by vibration and ensure the stability of the positioning pin rod 2. The close fit between the buckle groove 303 and the bearing body 1 provides a strong locking effect to prevent the positioning pin rod 2 from slightly moving during use, thereby ensuring the stability and reliability of the bearing. The coordinated use of the first guide groove 304 and the second guide groove 306 ensures the stable movement of the resisting slider 302 in the vertical direction, avoids the deviation caused by the lateral force, and further improves the installation accuracy of the positioning pin rod 2. The limiting effect of the first slider 305 and the second slider 307 ensures the stability of the resisting slider 302 during movement.
[0027] The limiting mechanism 4 includes a threaded rod 401, an extrusion head 402, a hexagonal groove 403, a first threaded groove 404, a first positioning screw 405, a second threaded groove 406 and a second positioning screw 407. The inner side of the positioning pin 2 is threadedly connected with the threaded rod 401, the extrusion head 402 is fixedly installed on the left end of the threaded rod 401, the right end of the threaded rod 401 is provided with a hexagonal groove 403, the right side of the positioning pin 2 is provided with a first threaded groove 404 and a second threaded groove 406, and the first threaded groove 40 4 is threadedly connected to a first positioning screw 405, and a second positioning screw 407 is threadedly connected to an inner side of the second thread groove 406; the threaded push rod 401 realizes linear movement through a rotational action, thereby accurately controlling the position of the positioning pin 2. The sloped structure of the extrusion head 402 optimizes the contact area with the resisting slider 302 and improves the extrusion efficiency. The use of the first positioning screw 405 and the second positioning screw 407 increases the fixing force of the threaded push rod 401 and ensures the stability of the positioning pin 2.
[0028] The working principle of the utility model is as follows: the positioning pin for automobile bearing is additionally provided with a protection mechanism 3 and a limiting mechanism 4. When the positioning pin for automobile bearing is used, the protection mechanism 3 and the limiting mechanism 4 are activated. First, the positioning pin rod 2 is inserted into the inner side of the bearing body 1, and the hexagonal groove 403 is screwed to make the threaded rod 401 rotate and move, thereby making the extrusion head 402 squeeze the resisting slider 302. The end of the extrusion head 402 close to the resisting slider 302 is a slope structure, and the lower end of the resisting slider 302 is also a slope structure, so as to facilitate the extrusion head 402 to squeeze the resisting slider 302. Under the limiting effect of the first slider 305 and the second slider 307, the resisting slider 302 will move from bottom to top along the first guide groove 304 and the second guide groove 306, thereby making the resisting slider 3 02 stably presses the bearing body 1 so that the buckle groove 303 fits tightly with the bearing body 1, thereby achieving the effect of stably installing the positioning pin 2, and then tightens the first positioning screw 405 and the second positioning screw 407, and uses the first positioning screw 405 and the second positioning screw 407 to press the threaded push rod 401 to ensure the stability of the threaded push rod 401; in summary, the protection mechanism 3 is gathered on the left and right sides of the bearing body 1 to ensure that the bearing body 1 is stably located in the middle of the positioning pin 2, and the limiting mechanism 4 complements the protection mechanism 3. By activating the limiting mechanism 4, multiple groups of resisting slide blocks 302 can be pushed, so that the group of resisting slide blocks 302 squeezes and stabilizes the positioning pin 2, thereby ensuring that the positioning pin 2 is stably located in the middle of the bearing body 1, thereby improving the stability of the positioning pin 2.
[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A wear-resistant positioning pin for an automobile bearing, comprising a bearing body (1), a positioning pin rod (2) being arranged in the middle of the bearing body (1), characterized in that: A protection mechanism (3) is provided in the middle of the positioning pin rod (2), and limit mechanisms (4) are provided on both the left and right sides of the positioning pin rod (2). The protection mechanism (3) comprises a slide groove (301), a resisting slider (302), a buckle groove (303), a first guide groove (304), a first slider (305), a second guide groove (306) and a second slider (307). A slide groove (301) is provided in the middle of the positioning pin rod (2), a resisting slider (302) is provided on the inner side of the slide groove (301), and a buckle groove (303) is provided at the left end of the resisting slider (302). The six slide grooves (301) are evenly surrounded on the positioning pin rod (2) with the midpoint of the positioning pin rod (2) as the axis, and a resisting slider (302) is provided inside each of the slide grooves (301).
2. The wear-resistant positioning pin for automobile bearing according to claim 1, characterized in that: A first guide groove (304) and a second guide groove (306) are provided on the inner wall of the slide groove (301); a first slide block (305) is fixedly mounted on the front end of the resisting slide block (302); and a second slide block (307) is fixedly mounted on the rear end of the resisting slide block (302).
3. A wear-resistant positioning pin for automobile bearing according to claim 2, characterized in that: The first sliding block (305) is slidably connected to the first guide groove (304), and the second sliding block (307) is slidably connected to the second guide groove (306).
4. The wear-resistant positioning pin for automobile bearing according to claim 1, characterized in that: The limiting mechanism (4) comprises a threaded stopper (401), an extrusion head (402), a hexagonal groove (403), a first thread groove (404), a first positioning screw (405), a second thread groove (406) and a second positioning screw (407); the inner side of the positioning pin (2) is threadedly connected to the threaded stopper (401).
5. A wear-resistant positioning pin for automobile bearing according to claim 4, characterized in that: An extrusion head (402) is fixedly mounted on the left end of the threaded support rod (401), and a hexagonal groove (403) is formed on the right end of the threaded support rod (401).
6. The wear-resistant positioning pin for automobile bearing according to claim 1, characterized in that: A first thread groove (404) and a second thread groove (406) are provided on the right side of the positioning pin rod (2); the inner side of the first thread groove (404) is threadedly connected to a first positioning screw rod (405); and the inner side of the second thread groove (406) is threadedly connected to a second positioning screw rod (407).