Connecting structure for preventing pin from being abraded

Abstract

The utility model discloses a connecting structure capable of preventing a pin from being abraded, and relates to the technical field of connecting structures. The connecting structure for preventing the pin from being abraded comprises a second connecting piece, an arc-shaped groove fixing groove is formed in the lower surface of the second connecting piece, an arc-shaped inserting plate is movably connected to the inner wall of the arc-shaped groove fixing groove in a clamped mode, a first connecting piece is fixedly connected to the lower surface of the arc-shaped inserting plate, and a second matching hole is formed in the first connecting piece; a circular groove is formed in the inner wall of the second matching hole, a sleeve is slidably connected to the inner wall of the circular groove, a pin is inserted into the inner wall of the sleeve, four arc-shaped rubber blocks are fixedly connected into the inner wall of the sleeve, and when the pin works, the fixing sleeve and the sleeve can replace the pin to rotate on the inner walls of the second matching hole and the first matching hole; the contact area between the pin and the second matching hole and the first matching hole is reduced, pin abrasion is prevented, and the service life of the pin is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to connecting structure technical field, especially relate to a connecting structure of preventing pin wear and tear. BACKGROUND

[0002] In mechanical equipment, pin connecting structure is often used for transmitting force and torque, but under long-term operation and frequent use, the friction between the pin and the matching hole can cause wear and tear, which further affects the stability of the connection and the performance of the equipment, so a connecting structure is needed to prevent pin wear and tear. UTILITY MODEL CONTENTS

[0003] The utility model discloses a connecting structure for preventing pin wear and tear, which can solve the problem of pin wear and tear in mechanical equipment.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a connecting structure for preventing pin wear and tear, comprising a second connecting piece;

[0005] The lower surface of the second connecting piece is provided with an arc-shaped slot fixing groove, the inner wall of the arc-shaped slot fixing groove is movably connected with an arc-shaped plugboard, the lower surface of the arc-shaped plugboard is fixedly connected with a first connecting piece, the first connecting piece is provided with a second matching hole, the inner wall of the second matching hole is provided with a circular groove, and the inner wall of the circular groove is slidably connected with a sleeve.

[0006] Preferably, the inner wall of the sleeve is inserted with a pin, and the inner wall of the sleeve is fixedly connected with four arc-shaped rubber blocks, which can not only increase the firmness of the sleeve and the pin, but also absorb the vibration generated during the whole work.

[0007] Preferably, the second connecting piece is provided with a first matching hole, the upper end of the pin extends into the interior of the first matching hole, the outer wall of the pin is fixedly sleeved with a fixing sleeve, and the fixing sleeve is rotatably connected with the first matching hole.

[0008] Preferably, the left and right sides of the second connecting piece are fixedly connected with a second connecting plate, and the first fixing hole is formed in the two second connecting plates.

[0009] Preferably, the left and right sides of the first connecting piece are fixedly connected with a first connecting plate, and the second fixing hole is formed in the two first connecting plates.

[0010] Preferably, the two second connecting plates and the first connecting plates are fixedly installed together by two fixing bolts.

[0011] Compared with the prior art, the utility model has the advantages of

[0012] (1), this prevent the connecting structure of pin wear, fixed sleeve and sleeve will replace the pin in the inner wall of second cooperation hole and first cooperation hole and rotate, reduce the contact area of pin and second cooperation hole and first cooperation hole, prevent the pin wear, improve the service life of pin.

[0013] (2), this prevent the connecting structure of pin wear, through setting up four arc rubber block not only can increase the firm degree of sleeve and pin connect together, still can absorb the vibration of whole work, improve the stability of pin when working. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model is further explained in connection with the drawings and examples:

[0015] Fig. 1 It is the structure schematic diagram of the utility model whole;

[0016] Fig. 2 It is the first connecting piece lower surface view schematic drawing of the utility model;

[0017] Fig. 3 It is the first connecting piece inside schematic drawing of the utility model.

[0018] Reference numeral: 1, pin;2, first connecting piece;3, first connecting plate;4, second connecting plate;5, first cooperation hole;6, fixed sleeve;7, second cooperation hole;8, arc rubber block;9, arc-shaped plugboard;10, arc-shaped slot fixed slot;11, second connecting piece;12, sleeve barrel;13, round groove. DETAILED DESCRIPTION

[0019] This part will describe the specific embodiment of the utility model in detail, the preferred embodiment of the utility model is shown in the drawings, the role of the drawing is to supplement the description of the written part with graphics, so that people can intuitively, visually understand each technical feature and overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0020] In the description of the utility model, it is understood that, in relation to the orientation description, such as the orientation or position relation indicated by up, down, front, back, left, right etc. for the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as the limitation of the utility model.

[0021] In the description of the utility model, greater than, less than, exceed and the like are understood as not including the number, above, below, within and the like are understood as including the number.If there is a description to the first, second is only used for distinguishing technical features for the purpose, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0022] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be understood in a broad sense, and the person skilled in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.

[0023] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: a connecting structure to prevent pin wear, including second connecting piece 11, the lower surface of second connecting piece 11 is equipped with arc slot fixed groove 10, the inner wall of arc slot fixed groove 10 movably clamps arc-shaped insert plate 9, the lower surface of arc-shaped insert plate 9 is fixedly connected with first connecting piece 2, and second matching hole 7 is formed in first connecting piece 2, and circular groove 13 is formed in the inner wall of second matching hole 7, and sleeve 12 is slidably connected to the inner wall of circular groove 13.

[0024] Further, the inner wall of sleeve 12 is inserted with pin 1, and four arc-shaped rubber blocks 8 are fixedly connected to the inner wall of sleeve 12, which can not only increase the firmness of the connection between sleeve 12 and pin 1, but also absorb the vibration generated during the whole work, improve the stability of pin 1 during work.

[0025] Further, first matching hole 5 is formed in second connecting piece 11, and the upper end of pin 1 extends to the inside of first matching hole 5, and fixed sleeve 6 is fixedly sleeved on the outer wall of pin 1, and fixed sleeve 6 is rotatably connected with first matching hole 5.

[0026] Further, second connecting plate 4 is fixedly connected to the left and right sides of second connecting piece 11, and first fixing hole is formed in the two second connecting plates 4.

[0027] Further, first connecting plate 3 is fixedly connected to the left and right sides of first connecting piece 2, and second fixing hole is formed in the two first connecting plates 3.

[0028] Further, the two upper and lower corresponding second connecting plates 4 and first connecting plates 3 are fixedly installed together by two fixing bolts.

[0029] Further, when the connecting structure for preventing the pin from wearing is used, first, the pin 1 is held, the pin 1 is inserted into the inside of the first matching hole 5, the outer surface of the fixing sleeve 6 is attached to the inner wall of the first matching hole 5, then the first connecting piece 2 is held, the arc-shaped insertion plate 9 is inserted into the inner wall of the arc-shaped slot fixing groove 10, and the lower end of the pin 1 is sequentially penetrated through the sleeve 12 and the inside of the second matching hole 7, the four arc-shaped rubber blocks 8 can not only increase the firmness of the sleeve 12 and the pin 1 connected together, but also absorb the vibration generated during the whole work, improve the stability of the pin 1 during work, then the two upper and lower corresponding second connecting plates 4 and the first connecting plate 3 are fixedly installed together through two fixing bolts, during the work of the pin 1, the fixing sleeve 6 and the sleeve 12 replace the pin 1 to rotate on the inner wall of the second matching hole 7 and the first matching hole 5, the contact area of the pin 1 and the second matching hole 7 and the first matching hole 5 is reduced, the pin 1 is prevented from wearing, and the service life of the pin 1 is improved.

[0030] Working principle: when the connecting structure for preventing the pin from wearing is used, first, the pin 1 is held, the pin 1 is inserted into the inside of the first matching hole 5, the outer surface of the fixing sleeve 6 is attached to the inner wall of the first matching hole 5, then the first connecting piece 2 is held, the arc-shaped insertion plate 9 is inserted into the inner wall of the arc-shaped slot fixing groove 10, and the lower end of the pin 1 is sequentially penetrated through the sleeve 12 and the inside of the second matching hole 7, the four arc-shaped rubber blocks 8 can not only increase the firmness of the sleeve 12 and the pin 1 connected together, but also absorb the vibration generated during the whole work, improve the stability of the pin 1 during work, then the two upper and lower corresponding second connecting plates 4 and the first connecting plate 3 are fixedly installed together through two fixing bolts, during the work of the pin 1, the fixing sleeve 6 and the sleeve 12 replace the pin 1 to rotate on the inner wall of the second matching hole 7 and the first matching hole 5, the contact area of the pin 1 and the second matching hole 7 and the first matching hole 5 is reduced, the pin 1 is prevented from wearing.

[0031] The embodiments of the utility model are explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, within the knowledge range of ordinary skill in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A connection structure for preventing pin wear, characterized in that: include: A second connecting member (11); The lower surface of the second connecting member (11) is provided with an arc-shaped fixing groove (10), the inner wall of the arc-shaped fixing groove (10) is movably connected with an arc-shaped inserting plate (9), the lower surface of the arc-shaped inserting plate (9) is fixedly connected with the first connecting member (2), the first connecting member (2) is provided with a second matching hole (7), the inner wall of the second matching hole (7) is provided with a circular groove (13), and the inner wall of the circular groove (13) is slidably connected with a sleeve (12).

2. A connection structure for preventing pin wear according to claim 1, characterized in that: The inner wall of the sleeve (12) is plugged with a pin (1), and the inner wall of the sleeve (12) is fixedly connected with four arc-shaped rubber blocks (8). The provision of the four arc-shaped rubber blocks (8) not only increases the firmness of the connection between the sleeve (12) and the pin (1), but also absorbs vibrations generated during overall operation.

3. A connection structure for preventing pin wear according to claim 2, characterized in that: The second connecting member (11) is provided with a first matching hole (5), the upper end of the pin (1) extends to the inside of the first matching hole (5), the outer wall of the pin (1) is fixedly sleeved with a fixing sleeve (6), and the fixing sleeve (6) and the first matching hole (5) are rotatably connected.

4. A connection structure for preventing pin wear according to claim 3, characterized in that: The left and right sides of the second connecting member (11) are both fixedly connected to second connecting plates (4), and the two second connecting plates (4) are both provided with first fixing holes.

5. A connection structure for preventing pin wear according to claim 4, characterized in that: The left and right sides of the first connecting member (2) are both fixedly connected with first connecting plates (3), and the two first connecting plates (3) are both provided with second fixing holes.

6. A connection structure for preventing pin wear according to claim 5, characterized in that: The two upper and lower corresponding second connecting plates (4) and the first connecting plate (3) are fixed together by two fixing bolts respectively.

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