Lubricating mechanism for shovel plate part pin shaft
By setting up oil filling ports, lubricating pipes and liquid inlet channels in the lubricating mechanism of the pin shaft of the shovel part, the problems of grease filling difficulties and easy pipeline damage are solved, and the effect of convenient filling and extended service life is achieved.
Patent Information
- Application Number
- CN202422589664.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-25
AI Technical Summary
In the prior art, grease filling of the pin of the shovel part is difficult, and the external lubricating pipe is easily crushed by walking tracks or gangue, which is difficult to maintain, affecting the lubrication effect and service life.
A lubrication mechanism is designed, including an oil injection port above the connection part, an internal lubrication pipe and an installation ring. The lubrication pipe is connected to the liquid inlet channel. The oil inlet port is convenient for operation. The lubrication liquid enters between the pin shaft and the articulated shaft through the lubrication pipe and the liquid inlet channel to avoid damage to the external pipeline.
It realizes the convenience of grease filling and the durability of lubricating pipes, reduces maintenance frequency, extends service life and reduces maintenance costs.
Smart Images
Figure CN223256826U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of tunnel boring machines, and in particular to a lubrication mechanism for a pin shaft of a shovel plate. Background Art
[0002] A roadheader (TBM) is a machine used to excavate tunnels on flat ground. It comes in two types: open-type and shield-type. It primarily consists of a traveling mechanism, a working mechanism, a loading mechanism, and a transfer mechanism. As the traveling mechanism advances, the cutting head in the working mechanism continuously crushes rock. The shovel of the TBM scoops the rock removed by the cutting head onto the shovel. A star wheel on the shovel then scoops the rock onto a conveyor in a chute between the shovels, transporting it away. The shovel effectively clears debris and rocks from the road ahead, ensuring stable movement. It is essential for the TBM's forward motion.
[0003] The shovel plate is generally connected to the traveling mechanism through a connecting part, and one end of the shovel plate is hinged to the connecting part through a hinge shaft and a pin shaft. When the shovel plate is working, the rotation of the hinge shaft drives the shovel plate to move. In order to ensure that the rotation of the hinge shaft relative to the pin shaft is relatively smooth, it is often necessary to add grease between the two. In the existing technology, the position of the pin shaft is mostly on the inner side of the traveling mechanism, blocked by the traveling mechanism and the shovel plate oil cylinder, and the pin shaft cannot be directly filled with grease. The more common improvement method is to move the grease filling point to a convenient position and connect it to the pin shaft or bushing lubrication hole through a hose, but this external lubrication tube method is not convenient for protection. The lubrication tube is often squeezed by the walking track or gangue, and it is difficult to replace the tube due to limited space after damage. Utility Model Content
[0004] In view of the deficiencies or problems existing in the prior art, the present disclosure provides a lubricating mechanism for a shovel plate pin shaft.
[0005] The technical solution adopted by the present disclosure to solve the above-mentioned technical problems is: a lubrication mechanism for the pin shaft of the shovel plate part, including an oil filling port arranged above the connecting part, and a lubrication pipe and a mounting ring arranged inside the connecting part, the mounting ring is interference fit with a pin shaft, the pin shaft is used to connect the hinge shaft, the mounting ring is provided with a liquid inlet channel, the lubrication pipe is arranged between the oil filling port and the liquid inlet channel, and the oil filling port, the lubrication pipe and the liquid inlet channel are connected.
[0006] As a preferred embodiment, the mounting ring includes an inner peripheral wall and an outer peripheral wall, and the liquid inlet channel runs through the inner peripheral wall and the outer peripheral wall.
[0007] As a preferred embodiment, the liquid inlet channel is arranged along the radial direction of the mounting ring.
[0008] As a preferred embodiment, a mounting block is provided on the connecting portion, and the oil filling port is provided on the mounting block.
[0009] In a preferred embodiment, the lubrication pipe is sheathed with at least one stopper, which has a mounting hole corresponding to the lubrication pipe. The stopper is used to limit the lubrication pipe's position. During operation, the roadheader's internal lubrication mechanism inevitably vibrates or shakes. The stopper prevents the lubrication pipe from shifting or falling due to prolonged vibration or shaking, which could affect the lubrication mechanism's proper functioning.
[0010] As a preferred embodiment, the first end of the lubrication pipeline is connected to the oil filling port, and the second end of the lubrication pipeline is connected to the liquid inlet channel.
[0011] As a preferred embodiment, the liquid inlet channel includes a first channel and a second channel that are interconnected, the inner diameter of the first channel is larger than the inner diameter of the second channel, and the first channel is connected to the lubrication pipeline.
[0012] As a preferred embodiment, a lubrication hole is provided on the pin shaft, and the lubricating liquid in the liquid inlet channel enters between the pin shaft and the hinge shaft through the lubrication hole.
[0013] As a preferred embodiment, the lubrication pipeline includes a first section and a second section that are interconnected, the first section is connected to the oil filling port, and the second section is connected to the liquid inlet channel.
[0014] As a preferred embodiment, the first section is vertically arranged, and the angle between the second section and the first section is greater than or equal to ninety degrees.
[0015] Compared with existing products, since the oil filling port is arranged above the connecting part, there is no obstruction when adding lubricating liquid, which is convenient to operate and the maintenance of the oil filling port is also more convenient; since the lubrication pipeline is arranged between the oil filling port and the liquid inlet channel, the oil filling port, the lubrication pipeline and the liquid inlet channel are connected. After the lubricating liquid enters from the oil filling port, it passes through the lubrication pipeline and the liquid inlet channel in turn, and finally enters between the pin shaft and the articulated shaft to lubricate the contact position between the articulated shaft and the pin shaft; since the lubrication pipeline is arranged inside the mounting part, there is no need to worry about the lubrication pipeline being squeezed by the walking track or gangue, which makes the lubrication pipeline have a longer service life, and can also reduce the maintenance frequency of the lubrication pipeline, saving maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present application will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. In addition, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the described objects and may contain exaggerated representations. The drawings are not necessarily drawn to scale.
[0017] Figure 1 This is one of the cross-sectional views of a lubrication mechanism for a shovel plate pin disclosed herein;
[0018] Figure 2 This is the second cross-sectional view of a lubrication mechanism for a shovel plate pin disclosed herein;
[0019] Figure 3 is a schematic structural diagram of the mounting ring disclosed herein;
[0020] Figure 4 The present invention is a structural schematic diagram of a lubrication mechanism for a shovel plate pin shaft.
[0021] Description of reference numerals:
[0022] 1. Connecting part; 2. Lubrication pipe; 3. Mounting ring; 4. Mounting block; 5. Oil filling port; 6. First section; 7. Second section; 8. Limit block; 9. First channel; 10. Second channel; 11. Outer wall; 12. Inner wall; 13. Pin shaft. DETAILED DESCRIPTION
[0023] In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure is described in detail, clearly, and completely in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not intended to limit the present disclosure.
[0024] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.
[0025] Please see Figure 1 、 Figure 2 and Figure 4As shown, the present application provides a lubrication mechanism for the shovel plate pin shaft, including an oil filling port 5 arranged above the connecting portion 1, and a lubrication pipe 2 and a mounting ring 3 arranged inside the connecting portion 1, a pin shaft 13 is interference fit on the mounting ring 3, the pin shaft 13 is used to connect the hinge shaft, a liquid inlet channel is provided on the mounting ring 3, the lubrication pipe 2 is arranged between the oil filling port 5 and the liquid inlet channel, a first end of the lubrication pipe 2 is connected to the oil filling port 5, and a second end of the lubrication pipe 2 is connected to the liquid inlet channel, and the oil filling port 5, the lubrication pipe 2 and the liquid inlet channel are connected. Since the oil filling port 5 is arranged above the connecting part 1, there is no obstruction and the operation is convenient when adding lubricating liquid, and the maintenance of the oil filling port 5 is also more convenient; since the lubricating pipe 2 is arranged between the oil filling port 5 and the liquid inlet channel, the oil filling port 5, the lubricating pipe 2 and the liquid inlet channel are connected. After the lubricating liquid enters from the oil filling port 5, it passes through the lubricating pipe 2 and the liquid inlet channel in turn, and finally enters between the pin shaft 13 and the hinge shaft, lubricating the contact position between the hinge shaft and the pin shaft 13; since the lubricating pipe 2 is arranged inside the mounting part, there is no need to worry about the lubricating pipe 2 being squeezed by the walking track or gangue, thereby making the lubricating pipe 2 have a longer service life, and the maintenance frequency of the lubricating pipe 2 can also be reduced, saving maintenance costs.
[0026] Please also refer to Figure 3 As shown, the mounting ring 3 further includes an inner circumferential wall 12 and an outer circumferential wall 11, and a liquid inlet channel penetrates the inner circumferential wall 12 and the outer circumferential wall 11. In this way, the lubricating liquid can flow from the liquid inlet channel to the pin 13. Preferably, the liquid inlet channel is arranged in the radial direction of the mounting ring 3. In this way, the liquid inlet channel can be regarded as perpendicular to the inner circumferential wall 12 and the outer circumferential wall 11 of the mounting ring 3, respectively. The length of the liquid inlet channel is minimized, thereby making the mounting ring 3 more structurally strong and easier to process.
[0027] Furthermore, the liquid inlet channel includes a first channel 9 and a second channel 10 that are interconnected. The inner diameter of the first channel 9 is larger than the inner diameter of the second channel 10, and the first channel 9 is connected to the lubrication pipe 2. Specifically, the inner diameter of the first channel 9 is adapted to the outer diameter of the lubrication pipe 2, one end of the lubrication pipe 2 is located within the first channel 9, and the inner diameter of the second channel 10 is adapted to the inner diameter of the lubrication pipe 2. This prevents lubricating liquid from leaking from the interface between the lubrication pipe 2 and the liquid inlet channel. Preferably, the inner diameter of the second channel 10 is greater than or equal to the inner diameter of the lubrication pipe 2, and the inner diameter of the second channel 10 is smaller than the outer diameter of the lubrication pipe 2. This allows lubricating liquid in the lubrication pipe 2 to enter the second channel 10 smoothly without waste. To make the connection between the lubrication pipe 2 and the liquid inlet channel tighter, a sealing member, including but not limited to a sealing ring, may be provided at the connection between the two.
[0028] like Figure 1 and Figure 4As shown, in one embodiment of the present disclosure, a mounting block 4 is provided on the connecting portion 1, and an oil filling port 5 is provided on the mounting block 4. The provision of the mounting block 4 facilitates maintenance of the oil filling port 5. If the oil filling port 5 is blocked or damaged, the mounting block 4 can be replaced.
[0029] To better secure the lubrication pipe 2 within the connection portion 1, two stoppers 8 are mounted on the outside of the lubrication pipe 2. Each stopper 8 has mounting holes corresponding to the lubrication pipe 2. The stoppers 8 are used to limit the position of the lubrication pipe 2. During operation, the lubrication mechanism within the roadheader inevitably vibrates or shakes. The stoppers 8 limit the position of the lubrication pipe 2 to prevent it from shifting or falling off due to prolonged vibration or shaking, which could affect the normal operation of the lubrication mechanism.
[0030] like Figure 2 As shown, in one embodiment of the present disclosure, the lubrication conduit 2 includes a first section 6 and a second section 7 that are interconnected. The first section 6 is connected to the oil inlet 5, and the second section 7 is connected to the liquid inlet channel. Preferably, the first section 6 is vertically arranged, and the angle between the second section 7 and the first section 6 is greater than or equal to 90 degrees. The vertical arrangement of the first section 6 facilitates the smooth flow of the lubricating liquid, allowing it to flow smoothly into the second section 7. The angle between the second section 7 and the first section 6 is greater than or equal to 90 degrees, allowing the second section 7 to be tilted downward, allowing the lubricating liquid to flow smoothly into the liquid inlet channel within the mounting ring 3.
[0031] It is understood that the pin 13 is provided with a lubrication hole, and the lubricating liquid in the liquid inlet channel enters the lubrication hole between the pin 13 and the hinge shaft to lubricate the contact point between the hinge shaft and the pin 13, thereby making the hinge shaft rotate more smoothly and avoiding jamming. The pin 13 in this application is a common component in the prior art, and the connection method between the pin 13 and the hinge shaft is also a common connection method in the prior art. This application does not further describe the specific structure of the pin 13 and its specific connection method with the hinge shaft.
[0032] The present application has been described in detail above. Specific examples have been used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is intended only to facilitate understanding of the present application and its core concepts. It should be noted that, without departing from the principles of the present application, a number of improvements and modifications may be made to the present application by a person skilled in the art, and such improvements and modifications shall fall within the scope of protection of the claims of the present application.
Claims
1. A lubricating mechanism for a shovel pin, characterized in that: The invention comprises an oil filling port (5) arranged above the connecting portion (1), and a lubricating pipe (2) and a mounting ring (3) arranged inside the connecting portion (1); a pin shaft (13) is interference-fitted on the mounting ring (3); the pin shaft (13) is used to connect the hinge shaft; a liquid inlet channel is provided on the mounting ring (3); the lubricating pipe (2) is arranged between the oil filling port (5) and the liquid inlet channel; the oil filling port (5), the lubricating pipe (2) and the liquid inlet channel are connected.
2. The lubrication mechanism for the scraper pin according to claim 1, characterized in that: The mounting ring (3) comprises an inner peripheral wall (12) and an outer peripheral wall (11), and the liquid inlet channel penetrates the inner peripheral wall (12) and the outer peripheral wall (11).
3. The lubrication mechanism for the scraper pin according to claim 2, characterized in that: The liquid inlet channel is arranged along the radial direction of the mounting ring (3).
4. The lubrication mechanism for the scraper pin according to claim 1, characterized in that: A mounting block (4) is provided on the connecting portion (1), and the oil filling port (5) is provided on the mounting block (4).
5. The lubrication mechanism for the scraper pin according to claim 1, characterized in that: At least one limiting block (8) is sleeved on the outside of the lubricating pipeline (2), and a mounting hole adapted to the lubricating pipeline (2) is provided on the limiting block (8). The limiting block (8) is used to limit the lubricating pipeline (2).
6. The lubrication mechanism for the scraper pin according to claim 1, characterized in that: The first end of the lubrication pipeline (2) is connected to the oil filling port (5), and the second end of the lubrication pipeline (2) is connected to the liquid inlet channel.
7. The lubricating mechanism for the scraper pin according to claim 6, characterized in that: The liquid inlet channel comprises a first channel (9) and a second channel (10) which are interconnected, the inner diameter of the first channel (9) is larger than the inner diameter of the second channel (10), and the first channel (9) is connected to the lubrication pipeline (2).
8. The lubrication mechanism for the scraper pin according to claim 1, characterized in that: The pin shaft (13) is provided with a lubrication hole, and the lubricating liquid in the liquid inlet channel enters between the pin shaft (13) and the hinge shaft through the lubrication hole.
9. The lubrication mechanism for the scraper pin according to claim 1, characterized in that: The lubrication pipeline (2) comprises a first section (6) and a second section (7) which are connected to each other, wherein the first section (6) is connected to the oil filling port (5), and the second section (7) is connected to the liquid inlet channel.
10. The lubrication mechanism for the scraper pin according to claim 9, characterized in that: The first section (6) is arranged vertically, and the angle between the second section (7) and the first section (6) is greater than or equal to ninety degrees.