Self-lubricating guide wheel

Abstract

The utility model is suitable for engineering machinery parts field provides a kind of self-lubricating guide wheel, comprising: guide wheel main body, by wheel body, rim and two wheel cores are welded and constitute;The oil storage cavity is fixed in the wheel body and is opened, the oil storage cavity and the inboard of rim constitute airtight chamber, for storing lubricating oil, the oil storage cavity is evenly distributed and is arranged in the annular multiple wave-breaker, the inboard of wheel body is also fixed and opened and has lubricating cavity, the oil storage cavity and lubricating cavity are connected by the multiple communication holes of evenly distributed ring, the side surface of wheel body is also evenly distributed and is opened and has multiple oil injection holes in the annular, the oil injection hole is fixed and is installed with oil injection valve.The utility model still can guarantee that the outside of rotating shaft exists certain amount of lubricating oil by the wave-breaker that setting, still can guarantee the self-lubricating effect of guide wheel, and the space in the oil storage cavity is cut off into multiple areas by the wave-breaker that setting, limit lubricating oil flow path, shorten fluid stabilization time, greatly reduce the inertial impact force when rotating,

Description

Technical Field

[0001] This utility model belongs to the field of engineering machinery parts, and in particular relates to a self-lubricating guide wheel. Background Technology

[0002] The idler wheel (also known as the guide wheel) is a core component of the walking system of tracked construction machinery (such as excavators, bulldozers, rotary drilling rigs, etc.). It is mainly installed at the front end of the track and plays a key role in guiding the winding and tensioning of the track.

[0003] The existing Chinese utility model patent with announcement number CN220281530U discloses a self-lubricating guide wheel. A portion of the weight-reducing cavity of the guide wheel is carved out to set up a temporary storage chamber for storing a large amount of lubricating oil. An oil guide channel is set up to guide the lubricating oil to the oil reservoir for lubricating the main shaft. An oil control mechanism set in the oil guide channel can automatically control the amount of lubricating oil entering the oil reservoir, thereby ensuring that the lubricating oil entering the oil reservoir is not excessive. This avoids excessive lubricating oil from hindering the rotation of the wheel shaft and increasing the pressure in the oil reservoir, which could lead to oil leakage.

[0004] However, when the aforementioned guide wheel is in use, as the guide wheel rotates, the internal lubricating oil flows freely in the temporary storage cavity. The lubricating oil has an inertial effect, which generates a large amount of shaking and impact, which has an adverse effect on the structural stability. With long-term use, the connection performance at the shaft may be reduced, and local wear due to local impact may even occur, leading to lubricating oil leakage and affecting the working life of the guide wheel. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide a self-lubricating guide wheel, which aims to solve the problems mentioned in the background art.

[0006] This utility model embodiment is implemented as follows: a self-lubricating guide wheel includes:

[0007] The main body of the guide wheel is constructed by welding together the wheel body, the wheel rim, and two wheel cores.

[0008] An oil storage chamber is fixedly provided inside the wheel body. The oil storage chamber and the inner side of the wheel rim form a sealed chamber for storing lubricating oil. Multiple anti-wave plates are evenly and interspersed in a ring shape inside the oil storage chamber.

[0009] A lubrication chamber is also fixedly provided on the inner side of the wheel body. The oil storage chamber and the lubrication chamber are connected by a plurality of interconnecting holes that are evenly distributed in a ring.

[0010] The wheel body is also provided with multiple oil injection holes in a ring shape on the side, and an oil injection valve is fixedly installed in each oil injection hole;

[0011] The rotating shaft is rotatably mounted inside the wheel core, and its side forms a sealed oil chamber with the lubrication chamber.

[0012] The wheel frame serves as the mounting carrier for the guide wheel body and the rotating shaft, connecting it to the engineering equipment.

[0013] As a further embodiment of this utility model: the guide wheel body also includes a one-way valve fixedly installed in the connecting hole, the one-way valve allowing lubricating oil in the oil storage chamber to flow unidirectionally into the lubrication chamber.

[0014] As a further embodiment of this utility model: the wave deflector is configured as a plate-shaped structure and integrally formed with the wheel body.

[0015] As a further embodiment of this utility model: the wheel frame includes two wheel frame arms, which are fixedly installed at both ends of the rotating shaft and extend to the outside of the wheel core, and achieve dynamic sealing with the wheel core through a floating seal.

[0016] As a further embodiment of this utility model: the wheel frame also includes a fixing pin, a positioning hole adapted to the diameter of the fixing pin is fixedly opened on the wheel frame arm, and fixing holes are fixedly opened at both ends of the rotating shaft at positions corresponding to the positioning holes, and the fixing pin is engaged in the positioning holes and fixing holes.

[0017] The beneficial effects of this utility model are as follows:

[0018] The present invention provides a self-lubricating guide wheel, which divides the space inside the oil storage chamber into multiple areas by setting a baffle plate, restricting the flow path of lubricating oil, shortening the fluid stabilization time, greatly reducing the inertial impact force during rotation, and ensuring that there is still a certain amount of lubricating oil on the outside of the rotating shaft through the set lubrication chamber, thereby ensuring the self-lubricating effect of the guide wheel. Attached Figure Description

[0019] Figure 1 A three-dimensional structural diagram of a self-lubricating guide wheel provided for an embodiment of this utility model;

[0020] Figure 2 A partial cross-sectional view of a self-lubricating guide wheel provided in an embodiment of this utility model. Figure 1 ;

[0021] Figure 3 A partial cross-sectional view of a self-lubricating guide wheel provided in an embodiment of this utility model. Figure 2 ;

[0022] Figure 4 An exploded view of the structure of a self-lubricating guide wheel provided for an embodiment of this utility model.

[0023] In the attached diagram: 1. Guide wheel body; 11. Wheel body; 111. Oil reservoir; 112. Baffle plate; 113. Lubrication chamber; 114. Connecting hole; 115. Oil injection hole; 12. Wheel rim; 13. Wheel core; 14. One-way valve; 15. Oil injection valve; 2. Rotating shaft; 21. Fixing hole; 3. Wheel frame; 31. Wheel frame arm; 311. Positioning hole; 32. Fixing pin; 33. Floating seal. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] Please see Figures 1 to 4 This utility model embodiment provides a self-lubricating guide wheel, comprising:

[0027] The main body of the guide wheel 1 is welded together from the wheel body 11, the wheel rim 12 and two wheel cores 13;

[0028] An oil storage chamber 111 is fixedly provided inside the wheel body 11. The oil storage chamber 111 and the inner side of the wheel rim 12 form a sealed chamber for storing lubricating oil. Multiple baffles 112 are evenly and interspersed in a ring shape inside the oil storage chamber 111.

[0029] A lubrication chamber 113 is also fixedly provided on the inner side of the wheel body 11. The oil storage chamber 111 and the lubrication chamber 113 are connected by a plurality of connecting holes 114 evenly distributed in a ring.

[0030] The wheel body 11 also has a plurality of oil injection holes 115 in a ring shape on its side, and an oil injection valve 15 is fixedly installed in the oil injection hole 115.

[0031] The rotating shaft 2 is rotatably installed inside the wheel core 13, and its side and the lubrication cavity 113 form a closed oil cavity.

[0032] The wheel frame 3 serves as the mounting carrier for the guide wheel body 1 and the rotating shaft 2, and is connected to the engineering equipment.

[0033] In practical application, lubricating fluid is injected into the oil storage chamber 111 through the oil injection valve 15. As the lubricating fluid is continuously injected, it flows into the lubrication chamber 113 through the connecting hole 114, thereby achieving self-lubrication. When the guide wheel body 1 rotates, the anti-wave plate 112 hinders the fluid movement in the oil storage chamber 111, thereby reducing the influence of liquid inertia on the rotation of the guide wheel body 1.

[0034] In this embodiment, the space inside the oil storage chamber 111 is divided into multiple areas by the anti-wave plate 112, which restricts the flow path of the lubricating oil, shortens the fluid stabilization time, and greatly reduces the inertial impact force during rotation. Furthermore, the lubrication chamber 113 ensures that there is still a certain amount of lubricating oil on the outside of the rotating shaft 2, thereby ensuring the self-lubricating effect of the guide wheel.

[0035] Please see Figures 2 to 4 As a preferred embodiment of the present invention, the guide wheel body 1 further includes a one-way valve 14 fixedly installed in the connecting hole 114, the one-way valve 14 allowing the lubricating oil in the oil storage chamber 111 to flow unidirectionally into the lubrication chamber 113.

[0036] In practical applications, this embodiment uses a one-way valve 14 to further isolate the oil reservoir 111 and the lubrication chamber 113, which can effectively reduce the impact of the lubricating fluid flowing back and forth in the oil reservoir 111 and the lubrication chamber 113 on the balance during use.

[0037] In one embodiment, based on the positional design of the baffle plate 112 and the one-way valve 14, when the guide wheel body 1 rotates, regardless of the height of the lubricating oil in the oil storage chamber 111, a certain amount of lubricating oil can always be stored in the two wheel rims 12 that are one wheel rim apart, and the lubricating oil in the lubricating chamber 113 is replenished by flowing into the lubricating chamber 113 through the one-way valve 14.

[0038] Please see Figure 2 In another preferred embodiment of this utility model, the wave deflector 112 is configured as a plate-shaped structure and is integrally formed with the wheel body 11.

[0039] In practical applications, this embodiment uses an integrally molded baffle plate 112 to ensure the strength of the connection between the baffle plate 112 and the oil storage cavity 111, reducing the possibility of cracking due to liquid impact.

[0040] Please see Figure 3 and Figure 4 In another preferred embodiment of the present invention, the wheel frame 3 includes two wheel frame arms 31, which are fixedly installed at both ends of the rotating shaft 2 and extend to the outside of the wheel core 13, and achieve dynamic sealing with the wheel core 13 through the floating seal 33.

[0041] In practical applications, this embodiment uses a wheel frame arm 31 that is fixed to the rotating shaft 2 and can rotate relative to the wheel core 13, which facilitates the normal rotation of the wheel body 1. The floating seal 33 provides dynamic sealing, preventing the loss of lubricating oil, extending working time, and reducing the frequency of maintenance.

[0042] Please see Figure 3 and Figure 4In another preferred embodiment of the present invention, the wheel frame 3 further includes a fixing pin 32, and a positioning hole 311 adapted to the diameter of the fixing pin 32 is fixedly opened on the wheel frame arm 31. Fixing holes 21 are fixedly opened at both ends of the rotating shaft 2 at the positions corresponding to the positioning holes 311. The fixing pin 32 is fitted into the positioning holes 311 and the fixing holes 21.

[0043] In practical applications, this embodiment uses a fixed pin 32 in conjunction with a positioning hole 311 and a fixed hole 21 to connect and fix the rotating shaft 2 and the wheel frame arm 31. The rigid fixing method of the fixed pin 32 can greatly ensure the connection strength and the guiding effect of the guide wheel body 1.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A self-lubricating guide wheel, characterized in that: include: The main body of the guide wheel (1) is welded together from the wheel body (11), the wheel rim (12) and two wheel cores (13); An oil storage chamber (111) is fixedly provided inside the wheel body (11). The oil storage chamber (111) and the inner side of the wheel rim (12) form a sealed chamber for storing lubricating oil. Multiple baffles (112) are evenly distributed in a ring inside the oil storage chamber (111). The inner side of the wheel body (11) is also fixedly provided with a lubrication cavity (113), and the oil storage cavity (111) and the lubrication cavity (113) are connected by a plurality of connecting holes (114) evenly distributed in a ring; The wheel body (11) is also provided with a plurality of oil injection holes (115) in a ring shape on the side, and an oil injection valve (15) is fixedly installed in the oil injection hole (115). The rotating shaft (2) is rotatably installed inside the wheel core (13), and its side and the lubrication cavity (113) form a closed oil cavity; The wheel frame (3) serves as the mounting carrier for the guide wheel body (1) and the rotating shaft (2), and is connected to the engineering equipment.

2. The self-lubricating guide wheel according to claim 1, characterized in that: The guide wheel body (1) also includes a one-way valve (14) fixedly installed in the connecting hole (114), the one-way valve (14) allowing lubricating oil in the oil storage chamber (111) to flow unidirectionally into the lubrication chamber (113).

3. The self-lubricating guide wheel according to claim 1, characterized in that: The wave deflector (112) is configured as a plate structure and is integrally formed with the wheel body (11).

4. A self-lubricating guide wheel according to claim 1, characterized in that: The wheel frame (3) includes two wheel frame arms (31), which are fixedly installed at both ends of the rotating shaft (2) and extend to the outside of the wheel core (13). A dynamic seal with the wheel core (13) is achieved through a floating seal (33).

5. A self-lubricating guide wheel according to claim 4, characterized in that: The wheel frame (3) also includes a fixing pin (32). The wheel frame arm (31) is fixedly provided with a positioning hole (311) that matches the diameter of the fixing pin (32). The two ends of the rotating shaft (2) are fixedly provided with fixing holes (21) at the positions corresponding to the positioning holes (311). The fixing pin (32) is fitted into the positioning hole (311) and the fixing hole (21).

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