Pin shaft with anti-extraction bushing for excavator

Abstract

The utility model discloses a pin shaft with anti -drop axle sleeve for excavator has, and the connecting lug plate is swingedly connected with the rotating part through the pin shaft, and the both sides of pin shaft are equipped with the axle sleeve, and the axle sleeve of both sides corresponds with the connecting lug plate of both sides respectively, and the pin shaft hole on axle sleeve and connecting lug plate corresponds and cooperates, and the pin shaft hole of rotating part corresponds with the middle part of pin shaft, and the both ends of pin shaft all are provided with the baffle, and the baffle corresponds with axle sleeve and cooperates and limits axle sleeve, the utility model discloses the axle sleeve is set up, and when the wear of axle sleeve and connecting lug plate junction is serious, only needs to replace axle sleeve, reduces the cost of maintenance and maintenance, and through the baffle to limit axle sleeve, avoids the axle sleeve to drop out, improves stability, and the device still is provided with the baffle of bolt connection, and when replacing axle sleeve, the baffle is convenient to dismantle, improves the efficiency of maintenance and maintenance, has better practicality.

Description

Technical Field

[0001] This utility model relates to the field of barbecue technology, specifically a pin with an anti-detachment bushing for excavators. Background Technology

[0002] An excavator, also known as a digging machine or a soil excavator, is an earthmoving machine that uses a bucket to dig materials above or below the machine's bearing surface and load them into transport vehicles or unload them into a stockpile.

[0003] In excavators, especially large excavators, the pins of rotating components such as the boom cylinder and the connecting lugs are severely worn, resulting in the need for regular replacement of the pins. Furthermore, the pins of rotating components such as the boom cylinder are usually fixed by welding baffles to both ends of the pin, which makes it difficult to disassemble the pins during maintenance and is inefficient. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the shortcomings of the prior art by providing a pin with an anti-detachment bushing for excavators, thereby solving at least one of the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A pin shaft with anti-detachment bushing for excavators includes two symmetrically arranged connecting lugs, a rotating component, and a pin shaft. The connecting lugs are provided with pin shaft holes, and one end of the rotating component is provided with a pin shaft hole. The two connecting lugs are movably connected to the rotating component through the pin shaft. Bushings are fitted on both sides of the pin shaft, and the bushings on both sides correspond to the connecting lugs on both sides respectively. The bushings are correspondingly engaged with the pin shaft holes on the connecting lugs. The pin shaft hole of the rotating component corresponds to the middle part of the pin shaft. Both ends of the pin shaft are provided with baffles, and the baffles are correspondingly engaged with the bushings to limit the bushings.

[0006] Furthermore, the baffle is an annular baffle, and a reinforcing side plate is provided at the pin hole of the connecting ear plate. The annular baffle and the reinforcing side plate are fixedly connected by a first fastener, and the annular baffle and the bushing are correspondingly matched to limit the bushing.

[0007] Furthermore, the reinforcing side plate is provided with a plurality of first threaded holes, the first fastener is a fixing bolt, the annular baffle is provided with first bolt holes corresponding to the first threaded holes, and the annular baffle is fixed to the reinforcing side plate by fixing bolts.

[0008] Furthermore, the baffle is a circular baffle, and the circular baffle is fixedly connected to the end of the pin shaft by a second fastener. The circular baffle and the bushing are correspondingly matched to limit the bushing.

[0009] Furthermore, the end of the pin is provided with a plurality of second threaded holes, the second fastener is a fastening bolt, the circular baffle is provided with second bolt holes corresponding to the second threaded holes, and the circular baffle is fixed to the end of the pin by fastening bolts.

[0010] The beneficial effects of this utility model are: This utility model, by incorporating a bushing, requires only the bushing to be replaced when the connection between the bushing and the connecting lug plate is severely worn, thus reducing maintenance costs. Furthermore, the bushing is limited by a baffle to prevent it from dislodging, improving stability. The device also features a bolt-connected baffle, which facilitates disassembly when replacing the bushing, further enhancing maintenance efficiency and demonstrating good practicality. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the installation of the annular baffle of this utility model.

[0013] Figure 2 This is a schematic diagram of the installation of the circular baffle of this utility model.

[0014] The attached diagram lists the components represented by each number as follows: Connecting ear plate 1; rotating part 2; pin 3; bushing 4; annular baffle 5; reinforcing side plate 6; first threaded hole 7; first bolt hole 8; first fastener 9; circular baffle 10; second bolt hole 11; second fastener 12; second threaded hole 13. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0019] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example 1: See Figures 1 to 2This is a schematic diagram of the structure of this utility model, including two symmetrically arranged connecting lugs 1, a rotating member 2, and a pin 3. The connecting lugs 1 are provided with pin 3 holes, and one end of the rotating member is provided with a pin 3 hole. The boom serves as the rotating member 2. The two connecting lugs 1 are movably connected to the rotating member 2 through the pin 3. The rotating member 2 rotates around the pin 3. Bushings are fitted on both sides of the pin 3, and the bushings on both sides correspond to the connecting lugs 1 on both sides. The bushings are correspondingly engaged with the pin 3 holes on the connecting lugs 1. The pin 3 holes of the rotating member 2 correspond to the middle part of the pin 3. Both ends of the pin 3 are provided with baffles, and the baffles are correspondingly engaged with the bushings to limit the bushings. The other side of the bushing is limited by the rotating member 2.

[0022] Specifically, the baffle is an annular baffle 5, and a reinforcing side plate 6 is provided at the pin 3 hole of the connecting ear plate 1. The annular baffle 5 and the reinforcing side plate 6 are fixedly connected by the first fastener 9. The annular baffle 5 and the bushing are correspondingly matched to limit the bushing. The inner ring diameter of the baffle is smaller than the diameter of the bushing, thus limiting the bushing.

[0023] Specifically, the reinforcing side plate 6 is provided with a number of first threaded holes 7, the first fastener 9 is a fixing bolt, the annular baffle 5 is provided with first bolt holes 8 corresponding to the first threaded holes 7, and the annular baffle 5 is fixed to the reinforcing side plate 6 by fixing bolts.

[0024] When the diameter of the pin 3 is small or the empty area at the pin 3 hole of the connecting ear plate 1 is large, the annular baffle 5 is installed on the reinforcing side plate 6 by fastening bolts to prevent the bushing from shifting or even falling off. When replacing the bushing later, only the annular baffle 5 needs to be removed and the bushing replaced.

[0025] Example 2: Specifically, the baffle is a circular baffle 10. The circular baffle 10 is fixedly connected to the end of the pin 3 by a second fastener 12. The circular baffle 10 and the bushing are correspondingly matched to limit the bushing. The diameter of the circular baffle 10 is greater than the maximum diameter of the bushing, thus limiting the bushing.

[0026] Specifically, the end of the pin 3 is provided with a number of second threaded holes 13, the second fastener 12 is a fastening bolt, and the circular baffle 10 is provided with second bolt holes 11 corresponding to the second threaded holes 13. The circular baffle 10 is fixed to the end of the pin 3 by fastening bolts.

[0027] When the diameter of the pin 3 is large or the empty area at the pin 3 hole of the connecting ear plate 1 is small, the circular baffle 10 is installed at the end of the pin 3 by fastening bolts to prevent the bushing from shifting or even falling off. When replacing the bushing later, only the circular baffle 10 needs to be removed and the bushing replaced.

[0028] This utility model, by providing a bushing, only requires replacing the bushing when the connection between the bushing and the connecting ear plate 1 is severely worn, reducing maintenance costs. Furthermore, the bushing is limited by a baffle to prevent it from coming off, improving stability. The device also features a bolt-connected baffle, which facilitates disassembly when replacing the bushing, improving maintenance efficiency and demonstrating good practicality.

[0029] The above are merely optional embodiments of this utility model and are not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0030] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

Claims

1. A pin with an anti-detachment bushing for an excavator, characterized in that: The device includes two symmetrically arranged connecting lugs (1), a rotating component (2), and a pin (3). The connecting lugs (1) are provided with pin (3) holes, and one end of the rotating component is provided with a pin (3) hole. The two connecting lugs (1) are movably connected to the rotating component (2) through the pin (3). The pin (3) is fitted with bushings on both sides, and the bushings on both sides correspond to the connecting lugs (1) on both sides respectively. The bushings are correspondingly engaged with the pin (3) holes on the connecting lugs (1). The pin (3) holes of the rotating component (2) correspond to the middle part of the pin (3). Both ends of the pin (3) are provided with baffles, and the baffles are correspondingly engaged with the bushings to limit the bushings.

2. A pin shaft with an anti-detachment bushing for an excavator according to claim 1, characterized in that: The baffle is an annular baffle (5), and a reinforcing side plate (6) is provided at the pin (3) hole of the connecting ear plate (1). The annular baffle (5) and the reinforcing side plate (6) are fixedly connected by a first fastener (9). The annular baffle (5) and the bushing are correspondingly matched to limit the bushing.

3. A pin with an anti-detachment bushing for an excavator according to claim 2, characterized in that: The reinforcing side plate (6) is provided with a plurality of first threaded holes (7), the first fastener (9) is a fixing bolt, the annular baffle (5) is provided with first bolt holes (8) corresponding to the first threaded holes (7), and the annular baffle (5) is fixed to the reinforcing side plate (6) by fixing bolts.

4. A pin with an anti-detachment bushing for an excavator according to claim 1, characterized in that: The baffle is a circular baffle (10). The circular baffle (10) is fixedly connected to the end of the pin (3) by a second fastener (12). The circular baffle (10) and the bushing are correspondingly matched to limit the bushing.

5. A pin with an anti-detachment bushing for an excavator according to claim 4, characterized in that: The end of the pin (3) is provided with a plurality of second threaded holes (13), the second fastener (12) is a fastening bolt, the circular baffle (10) is provided with a second bolt hole (11) corresponding to the second threaded hole (13), and the circular baffle (10) is fixed to the end of the pin (3) by fastening bolts.

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