Pin shaft structure of a track-type construction machine

Abstract

The utility model relates to the technical field of engineering machinery, concretely relates to a pin shaft structure of tracked engineering machinery, including pin shaft body, sealing platform and rotating cover plate, still include blocking component, blocking component includes positioning mounting bracket, fixed column, filter screen, sealing ring holder and mounting component, positioning mounting bracket is fixedly connected with sealing platform, fixed column is fixedly connected with positioning mounting bracket, filter screen is connected with fixed column through mounting component, sealing ring holder is fixedly connected with filter screen, mounting component sets up on filter screen, and is connected with fixed column, can carry out blocking adsorption to the impurity of outside or the solid particle in the entering lubricating oil through filter screen, thereby avoided the impurity of outside or the particle in lubricating oil to pass through sealing platform and enter the gap between pin shaft body and work piece, and then reduced wear and tear and failure.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to a pin structure for tracked engineering machinery. Background Technology

[0002] Traditional pins are prone to loosening due to vibration during equipment use, which can cause the locking sleeve to rotate and come loose. This can lead to the pin coming loose from the equipment, affecting its use. Furthermore, when the gap between the pin and the equipment is small, the effect of adding lubricating oil is not good, and the lubricating oil cannot easily enter the gap between the pin and the workpiece through the transition part.

[0003] The prior art CN217198426U discloses a pin structure for tracked engineering machinery, including a pin body, a connecting block fixedly connected to one end of the pin body, a sealing sleeve slidably connected to the outside of the connecting block, a limiting component for restricting the sliding of the sealing sleeve between the sealing sleeve and the connecting block, and a sealing platform with a circular cross-section fixedly connected to the end of the pin body away from the connecting block. The sealing platform has a cavity for adding lubricating oil inside, and a drainage groove is formed on the side wall of the pin body. The pin is installed inside the workpiece, and the interface is sealed by the sealing platform and the sealing sleeve. The sealing sleeve is limited and fixed by the limiting component, so that the sealing sleeve cannot slide outside the connecting block. This effectively avoids the sealing sleeve from loosening due to equipment vibration, which would cause the pin to loosen from the workpiece, thus enhancing the performance of the equipment.

[0004] However, when the cover is opened to add lubricating oil, external impurities or particles in the lubricating oil can enter the gap between the pin body and the workpiece through the sealing plate, which can easily cause wear and malfunction of the equipment and workpiece. Utility Model Content

[0005] The purpose of this utility model is to provide a pin structure for tracked engineering machinery, which solves the problem that when adding lubricating oil by opening the cover plate, external impurities or particulate matter in the lubricating oil can enter the gap between the pin body and the workpiece through the sealing platform, which can easily cause wear and failure of the equipment and workpiece.

[0006] To achieve the above objectives, this utility model provides a pin structure for tracked engineering machinery, including a pin body, a sealing platform, and a rotating cover plate. The sealing platform is disposed on the pin body, and the rotating cover plate is disposed on the sealing platform. Its characteristic is that...

[0007] It also includes blocking components,

[0008] The blocking assembly includes a positioning mounting bracket, a fixing post, a filter screen, a sealing ring bracket, and a mounting component. The positioning mounting bracket is fixedly connected to the sealing platform and located on one side of the sealing platform. The fixing post is fixedly connected to the positioning mounting bracket and located on one side of the positioning mounting bracket. The filter screen is connected to the fixing post through the mounting component and located on the side of the fixing post closer to the sealing platform. The sealing ring bracket is fixedly connected to the filter screen and located on the side of the filter screen closer to the sealing platform. The mounting component is disposed on the filter screen and connected to the fixing post.

[0009] The mounting component includes a connecting frame, a through-hole plate, and mounting bolts. The connecting frame is fixedly connected to the filter screen and is located on one side of the filter screen. The through-hole plate is fixedly connected to the connecting frame and is located on the side of the connecting frame closer to the fixing post. The mounting bolts are disposed on the fixing post and abut against the through-hole plate.

[0010] The mounting component further includes a rubber gasket, which is fixedly connected to the through-hole plate and located on the side of the through-hole plate near the mounting bolt.

[0011] The fixing post has a threaded hole located on one side of the fixing post and engages with the mounting bolt.

[0012] The blocking assembly further includes a rubber ring, which is fixedly connected to the sealing ring frame and located on the side of the sealing ring frame closer to the sealing platform.

[0013] This utility model discloses a pin structure for tracked engineering machinery. The filter screen is connected and fixed within the cavity of the sealing platform via the mounting component. Simultaneously, the sealing ring frame prevents impurities and particles from flowing into the pin body through the gap between the filter screen and the sealing platform. When the operator needs to add lubricating oil, the rotating cover plate on the sealing platform is opened. The filter screen blocks and adsorbs external impurities or solid particles from the lubricating oil, thus preventing these from entering the gap between the pin body and the workpiece through the sealing platform, thereby reducing wear and malfunctions. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the pin structure of the tracked engineering machinery of this utility model.

[0016] Figure 2 This is a schematic diagram of the sealing platform of this utility model.

[0017] Figure 3 This is a schematic diagram of the blocking component of this utility model.

[0018] Figure 4 This is a structural schematic diagram of the fixing column of this utility model.

[0019] In the diagram: 101-Pin body, 102-Sealing platform, 103-Rotating cover plate, 104-Positioning mounting bracket, 105-Fixing column, 106-Filter screen, 107-Sealing ring bracket, 108-Rubber ring, 109-Connecting bracket, 110-Through hole plate, 111-Mounting bolt, 112-Rubber gasket, 113-Threaded hole. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] Please see Figures 1 to 4 ,in Figure 1 This is a schematic diagram of the pin structure of the tracked engineering machinery of this utility model. Figure 2 This is a schematic diagram of the sealing platform of this utility model. Figure 3 This is a schematic diagram of the blocking component of this utility model. Figure 4 This is a structural schematic diagram of the fixing column of this utility model.

[0022] This utility model provides a pin structure for tracked engineering machinery, including a pin body 101, a sealing platform 102, a rotating cover plate 103, and a blocking assembly. The blocking assembly includes a positioning mounting bracket 104, a fixing column 105, a filter screen 106, a sealing ring bracket 107, a mounting component, and a rubber ring 108. The mounting component includes a connecting bracket 109, a through-hole plate 110, a mounting bolt 111, and a rubber gasket 112. The fixing column 105 has a threaded hole 113. This solution solves the problem that when adding lubricating oil to the pin by opening the cover plate, external dust and impurities or particulate matter in the lubricating oil can enter the gap between the pin body 101 and the workpiece through the sealing platform 102, easily causing wear and malfunction of the equipment and workpiece. It is understood that the aforementioned solution can be used in situations where it is necessary to prevent dust and impurities from entering when adding lubricating oil by opening the cover plate.

[0023] In this embodiment, the sealing platform 102 is disposed on the pin body 101, and the rotating cover plate 103 is disposed on the sealing platform 102. By opening the rotating cover plate 103 on the sealing platform 102, the operator can easily replenish the lubricating oil in the cavity of the sealing platform 102, so that the lubricating oil can flow between the pin body 101 and the workpiece. The structure of the pin body 101 and its connection structure, the sealing platform 102 and the rotating cover plate 103 are described in detail in the prior art CN217198426U, and will not be repeated here.

[0024] The positioning mounting bracket 104 is fixedly connected to the sealing platform 102 and located on one side of the sealing platform 102. The fixing post 105 is fixedly connected to the positioning mounting bracket 104 and located on one side of the positioning mounting bracket 104. The filter screen 106 is connected to the fixing post 105 through the mounting component and located on the side of the fixing post 105 near the sealing platform 102. The sealing ring bracket 107 is fixedly connected to the filter screen 106 and located on the side of the filter screen 106 near the sealing platform 102. The mounting component is disposed on the filter screen. The filter screen 106 is connected to the fixed post 105 and is welded to the cavity of the sealing platform 102. The fixed post 105 is welded to the positioning mounting frame 104. The filter screen 106 is connected and fixed to the fixed post 105 through the mounting component. The filter screen 106 has a mesh size of 100-200 mesh, which can filter solid particles and impurities, while ensuring that lubricating oil can pass through smoothly and avoid clogging. The sealing ring frame 107 is welded to the filter screen 106 and can be attached to the cavity of the sealing platform 102. On the wall, the sealing ring frame 107 prevents impurities and particles from flowing into the pin body 101 through the gap between the filter screen 106 and the sealing platform 102. The mounting member is disposed on the filter screen 106 and connected to the fixing post 105. The mounting member can connect and fix the filter screen 106 to the fixing post 105, thereby connecting and fixing the filter screen 106 in the cavity of the sealing platform 102. This achieves the goal of connecting and fixing the filter screen 106 in the cavity of the sealing platform 102 through the mounting member. Meanwhile, the sealing ring frame 107 prevents impurities and particles from flowing into the pin body 101 through the gap between the filter screen 106 and the sealing platform 102. When the operator needs to add lubricating oil, the rotating cover plate 103 on the sealing platform 102 is opened. The filter screen 106 can block and adsorb external impurities or solid particles in the lubricating oil, thereby preventing external impurities or particles in the lubricating oil from entering the gap between the pin body 101 and the workpiece through the sealing platform 102, thus reducing wear and malfunctions.

[0025] Secondly, the connecting frame 109 is fixedly connected to the filter screen 106 and located on one side of the filter screen 106; the through-hole plate 110 is fixedly connected to the connecting frame 109 and located on the side of the connecting frame 109 near the fixing post 105; the mounting bolt 111 is disposed on the fixing post 105 and abuts against the through-hole plate 110; the connecting frame 109 is welded to the filter screen 106; the through-hole plate 110 is welded to the connecting frame 109; the through-hole plate 110 has a mounting through hole in the center; by turning the mounting bolt 111 through the through-hole plate 110 into the fixing post 105, the mounting bolt 111 can abut and fix the through-hole plate 110 to the fixing post 105, thereby allowing the filter screen 106 on the connecting frame 109 to be installed in the cavity of the sealing platform 102.

[0026] Meanwhile, the rubber gasket 112 is disposed on the through-hole plate 110 and located on the side of the through-hole plate 110 close to the mounting bolt 111. The rubber gasket 112 is placed on the through-hole plate 110, which can increase the friction between the mounting bolt 111 and the through-hole plate 110 when they abut, thereby preventing the mounting bolt 111 from loosening and falling off the fixing post 105.

[0027] In addition, the threaded hole 113 is located on one side of the fixing post 105 and cooperates with the mounting bolt 111. The threaded hole 113 is located at the center of the fixing post 105 and can cooperate with the external threaded hole 113 of the mounting bolt 111, thereby achieving the purpose of screwing and fixing the mounting bolt 111 on the fixing post 105.

[0028] Finally, the rubber ring 108 is fixedly connected to the sealing ring frame 107 and is located on the side of the sealing ring frame 107 close to the sealing platform 102. The rubber ring 108 is bonded to the outside of the sealing ring frame 107. The rubber ring 108 can better improve the sealing performance when the sealing ring frame 107 is in close contact with the inner wall of the cavity of the sealing platform 102.

[0029] When using a stacked storage rack according to this embodiment, the filter screen 106 is connected and fixed in the cavity of the sealing platform 102 by the mounting component. At the same time, the sealing ring frame 107 can prevent impurities and particles from flowing into the pin body 101 through the gap between the filter screen 106 and the sealing platform 102. When the operator needs to add lubricating oil, the rotating cover plate 103 on the sealing platform 102 is opened. The filter screen 106 can block and adsorb external impurities or solid particles in the lubricating oil, thereby preventing external impurities or particles in the lubricating oil from entering the gap between the pin body 101 and the workpiece through the sealing platform 102, thus reducing wear and malfunctions.

[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A pin structure for tracked engineering machinery, comprising a pin body, a sealing platform, and a rotating cover plate, wherein the sealing platform is disposed on the pin body, and the rotating cover plate is disposed on the sealing platform, characterized in that, It also includes blocking components, The blocking assembly includes a positioning mounting bracket, a fixing post, a filter screen, a sealing ring bracket, and a mounting component. The positioning mounting bracket is fixedly connected to the sealing platform and located on one side of the sealing platform. The fixing post is fixedly connected to the positioning mounting bracket and located on one side of the positioning mounting bracket. The filter screen is connected to the fixing post through the mounting component and located on the side of the fixing post closer to the sealing platform. The sealing ring bracket is fixedly connected to the filter screen and located on the side of the filter screen closer to the sealing platform. The mounting component is disposed on the filter screen and connected to the fixing post.

2. The pin structure of the tracked engineering machinery as described in claim 1, characterized in that, The mounting components include a connecting frame, a through-hole plate, and mounting bolts. The connecting frame is fixedly connected to the filter screen and is located on one side of the filter screen. The through-hole plate is fixedly connected to the connecting frame and is located on the side of the connecting frame closer to the fixing post. The mounting bolts are disposed on the fixing post and abut against the through-hole plate.

3. The pin structure of the tracked engineering machinery as described in claim 2, characterized in that, The mounting component also includes a rubber gasket disposed on the through-hole plate and located on the side of the through-hole plate near the mounting bolt.

4. The pin structure of the tracked engineering machinery as described in claim 2, characterized in that, The fixing post has a threaded hole located on one side of the fixing post and engages with the mounting bolt.

5. The pin structure of the tracked engineering machinery as described in claim 1, characterized in that, The blocking assembly also includes a rubber ring, which is fixedly connected to the sealing ring frame and located on the side of the sealing ring frame closer to the sealing platform.

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