Mechanical thrust wheel structure with static sealing clamping shaft ring

Abstract

The utility model provides a mechanical thrust wheel structure with a static sealing clamping shaft ring, which relates to the technical field of mechanical thrust wheels and comprises a wheel shaft body, a wheel body is rotatably sleeved on the outer surface of the wheel shaft body, cover plates are arranged at two ends of the wheel body, the shaft ring is arranged between the wheel shaft body and the wheel body, and the shaft ring is sleeved with the wheel body. According to the mechanical thrust wheel structure with the static sealing and clamping shaft ring, the shaft ring is arranged and connected to the outer surface of the wheel shaft body in a sleeving mode, in the normal use process, the cover plate extrudes the shaft ring, the shaft ring extrudes the oil sealing ring and the sealing rubber strip, the shaft ring, the cover plate and the oil sealing ring extrude and clamp the sealing rubber strip, the size of a gap is reduced, and the sealing effect is improved. And meanwhile, the sealing rubber strip located on the outer side is extruded to block the oil filling pipe, so that lubricating oil in the oil cavity cannot leak out, tight attachment between internal structures of the mechanical thrust wheel is achieved, and oil leakage is reduced as much as possible.

Description

Technical Field

[0001] The utility model relates to a mechanical track roller structure, in particular to a mechanical track roller structure with a static sealing clamping shaft ring, belonging to the technical field of mechanical track rollers. Background Art

[0002] Rotatable elements are used in all kinds of machine systems to enable one piece of equipment or part of it to rotate against another piece of equipment or part of it or against an object or material to be moved relative to the machine. The track roller is used to support the weight of the excavator or tractor while rolling on the guide rails or track shoes of the track. It also serves to limit the track and prevent lateral slippage.

[0003] As a crawler support component of an excavator or tractor, the mechanical track roller structure needs to operate in different environments, so it is often in extreme working conditions and is subjected to great stress and wear. When working under extreme conditions in mountainous and rocky areas, the mechanical track roller structure is more easily damaged. Therefore, the mechanical track roller structure has high maintenance costs, short lifespan due to wear and other structural problems. The solution to these problems lies in the need to constantly keep the mechanical track roller structure well lubricated. However, the existing mechanical track roller structure has poor sealing performance, which often causes lubricating oil to leak from the internal area of the mechanical track roller structure to the external area, thereby significantly increasing the maintenance cost of repairing the leak or replacing the entire mechanical track roller structure.

[0004] Therefore, a mechanical track roller structure with a static sealing clamping collar is proposed. Utility Model Content

[0005] The utility model proposes a mechanical track roller structure with a static sealing clamping collar to achieve a tight fit between the internal structures of the mechanical track rollers, thereby minimizing oil leakage and facilitating the replenishment of lubricating oil to the internal structures of the mechanical track rollers.

[0006] The utility model is realized by the following technical solutions: a mechanical track roller structure with a static sealing clamping collar, comprising a wheel axle body, a wheel body being rotatably sleeved on the outer surface of the wheel axle body, cover plates being provided at both ends of the wheel body, a collar being provided between the wheel axle body and the wheel body, the collar being sleeved on the wheel body, and an oil chamber being provided between the wheel body, the cover plate and the collar;

[0007] An oil sealing ring is provided inside the oil chamber, and grooves are provided on both the inner and outer sides of the oil sealing ring. A sealing strip is provided inside the groove, the sealing strip located on the inner side contacts the wheel body, and the sealing sleeve located on the outer side contacts the cover plate. A notch is provided on a side of the oil sealing ring close to the shaft ring, and a ball is installed inside the notch, and the ball contacts the shaft ring.

[0008] Furthermore, an oil filling pipe is provided on the side of the cover plate, the oil filling pipe passes through the cover plate, and the inner port of the oil filling pipe is connected to the oil cavity. Lubricating oil can be injected into the oil cavity through the oil filling pipe, thereby assisting in the lubrication of the inside of the supporting wheel body.

[0009] The cross-sectional size of the sealing strip is larger than the size of the flow opening reserved between the cover plate and the shaft ring, and the sealing strip is elastic.

[0010] A plurality of auxiliary grooves arranged in a circumferential manner are formed on a side surface of the shaft ring close to the cover plate. Auxiliary blocks are slidably connected inside the auxiliary grooves, and one end of the auxiliary blocks contacts the cover plate.

[0011] Furthermore, an auxiliary spring and an auxiliary telescopic rod are provided inside the auxiliary slot, and the other ends of the auxiliary spring and the auxiliary telescopic rod are fixed to the auxiliary block. The original length of the auxiliary telescopic rod is greater than the length of the auxiliary slot, and the auxiliary block can be driven to move by the auxiliary telescopic rod.

[0012] An end cover is fixed on the outer surface of the cover plate, and two connecting plates are fixed on the upper surface of the end cover. Bolt holes are opened on the upper surface of the connecting plate, and the end cover is connected to external components by installing connecting bolts at the position of the connecting plate.

[0013] A slot is provided on the upper surface of the cover plate, and the slot passes through the end cover, the cover plate and the axle body. A pin is inserted into the slot, and the insertion of the pin limits the mutual movement of the cover plate and the axle body, thereby maintaining the overall stability.

[0014] The utility model provides a mechanical track roller structure with a static seal clamping collar, which has the following beneficial effects:

[0015] 1. The mechanical track roller structure with a static sealing clamping collar is provided with a collar so that the collar is sleeved on the outer surface of the wheel axle body. During normal use, the cover plate squeezes the collar, which in turn squeezes the oil seal ring and the sealing strip. The collar, the cover plate, and the oil seal ring squeeze and clamp the sealing strip, reducing the size of the gap. At the same time, the sealing strip on the outside is squeezed to seal the oil filling pipe, so that the lubricating oil inside the oil cavity will not leak out, thereby achieving a close fit between the internal structures of the mechanical track roller and minimizing oil leakage.

[0016] 2. The mechanical track roller structure with a static sealing clamping collar is provided with a latch. When lubricating oil needs to be added between the internal structures of the mechanical track roller, the latch is removed, and the limit between the cover plate and the wheel axle body is released. At the same time, the auxiliary spring pushes the auxiliary block to move, and the movement of the auxiliary block pushes the cover plate to move. The movement of the cover plate releases the squeezing of the sealing strip, allowing the lubricating oil to enter the oil chamber through the oil filling pipe, thereby completing the replenishment of the lubricating oil inside the mechanical track roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the front view of the wheel body of the present invention;

[0019] Figure 3 For this utility model Figure 2 A magnified schematic diagram of the structure at A in the middle;

[0020] Figure 4 This is the utility model in the oil filling state Figure 2 Schematic diagram of the structural state at point A in the middle;

[0021] Figure 5 This is a schematic structural diagram of the oil seal ring of the utility model.

[0022] Description of Reference Numerals

[0023] 1. Axle body; 2. Wheel body; 3. Cover plate; 4. Shaft collar; 5. Oil chamber;

[0024] 501, oil seal ring; 502, sealing strip; 503, ball bearing;

[0025] 6. Oil filling pipe; 7. Auxiliary groove; 8. Auxiliary block; 9. Auxiliary spring; 10. Auxiliary telescopic rod; 11. End cover; 12. Connecting plate; 13. Bolt hole; 14. Pin. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] See also Figures 1 to 5An embodiment of the utility model provides a mechanical supporting wheel structure with a static sealing clamping collar 4, including a wheel axle body 1, a wheel body 2 is rotatably sleeved on the outer surface of the wheel axle body 1, cover plates 3 are provided at both ends of the wheel body 2, a collar 4 is provided between the wheel axle body 1 and the wheel body 2, the collar 4 is sleeved on the wheel body 2, and an oil chamber 5 is provided between the wheel body 2, the cover plate 3 and the collar 4.

[0028] An oil seal ring 501 is provided inside the oil chamber 5. Grooves are provided on both the inner and outer sides of the oil seal ring 501. A sealing strip 502 is provided inside the groove. The sealing strip 502 located on the inner side contacts the wheel body 2, and the sealing sleeve located on the outer side contacts the cover plate 3. A notch is provided on the side of the oil seal ring 501 close to the shaft ring 4. A ball 503 is installed inside the notch, and the ball 503 contacts the shaft ring 4.

[0029] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 5 An oil filling pipe 6 is provided on the side of the cover plate 3, which passes through the cover plate 3. The inner port of the oil filling pipe 6 is connected to the oil chamber 5. Lubricating oil can be injected into the oil chamber 5 through the oil filling pipe 6, thereby assisting the lubrication of the inside of the supporting wheel body 2. The cross-sectional size of the sealing strip 502 is larger than the size of the flow port reserved between the cover plate 3 and the shaft ring 4, and the sealing strip 502 is elastic.

[0030] Please refer to Figure 1 、 Figure 2 and Figure 3 A plurality of auxiliary grooves 7 are provided on one side of the collar 4 close to the cover plate 3 in a circumferential manner. An auxiliary block 8 is slidably connected to the inside of the auxiliary groove 7. One end of the auxiliary block 8 is in contact with the cover plate 3. An auxiliary spring 9 and an auxiliary telescopic rod 10 are provided inside the auxiliary groove 7. The other ends of the auxiliary spring 9 and the auxiliary telescopic rod 10 are fixed to the auxiliary block 8. The original length of the auxiliary telescopic rod 10 is greater than the length of the auxiliary groove 7. The auxiliary block 8 can be driven to move by the auxiliary telescopic rod 10.

[0031] Please refer to Figure 1 、 Figure 2 and Figure 3 An end cover 11 is fixed to the outer surface of the cover plate 3, and two connecting plates 12 are fixed to the upper surface of the end cover 11. Bolt holes 13 are provided on the upper surface of the connecting plate 12. The end cover 11 is connected to external components by installing connecting bolts at the position of the connecting plate 12. A slot is provided on the upper surface of the cover plate 3. The slot passes through the end cover 11, the cover plate 3 and the wheel axle body 1. A pin 14 is inserted into the inside of the slot. By inserting the pin 14, the mutual movement of the cover plate 3 and the wheel axle body 1 is limited, thereby maintaining the overall stability.

[0032] When the utility model is in use: when the overall installation is completed and in normal operating condition, the axle body 1, the cover plate 3 and the end cover 11 are fixed together by the pin 14, and the cover plates 3 on both sides push the shaft ring 4 and the middle wheel body 2 to jointly squeeze the oil seal ring 501 and the sealing strip 502. At this time, the auxiliary spring 9 and the auxiliary telescopic rod 10 retract into the auxiliary groove 7. The size of the gap is reduced by squeezing the shaft ring 4, the cover plate 3 and the wheel body 2. At the same time, the sealing strip 502 on the outside is squeezed to block the oil filling pipe 6, so that the lubricating oil inside the oil chamber 5 will not leak out, thereby achieving a close fit between the internal structures of the mechanical supporting wheels, thereby minimizing oil leakage.

[0033] When lubricating oil needs to be added between the internal structures of the mechanical supporting wheel, the pin 14 is removed, and the limit between the cover plate 3 and the wheel axle body 1 is released. At the same time, the auxiliary spring 9 pushes the auxiliary block 8 to move, and the movement of the auxiliary block 8 pushes the cover plate 3 to move. The movement of the cover plate 3 releases the squeezing of the sealing strip 502, allowing the lubricating oil to enter the oil chamber 5 through the oil filling pipe 6, thereby completing the replenishment of the lubricating oil inside the mechanical supporting wheel.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A mechanical track roller structure with a static sealing clamping collar, comprising a wheel axle body (1), characterized in that: The outer surface of the wheel axle body (1) is rotatably sleeved with a wheel body (2), and cover plates (3) are provided at both ends of the wheel body (2). A shaft ring (4) is provided between the wheel axle body (1) and the wheel body (2), and the shaft ring (4) is sleeved with the wheel body (2). An oil chamber (5) is provided between the wheel body (2), the cover plate (3) and the shaft ring (4); An oil seal ring (501) is provided inside the oil cavity (5), and grooves are provided on both inner and outer sides of the oil seal ring (501). A sealing rubber strip (502) is provided inside the groove, and the sealing rubber strip (502) located on the inner side contacts the wheel body (2), and the sealing rubber sleeve located on the outer side contacts the cover plate (3). A notch is provided on a side of the oil seal ring (501) close to the shaft ring (4), and a ball (503) is installed inside the notch, and the ball (503) contacts the shaft ring (4).

2. A mechanical track roller structure with a static seal clamping collar according to claim 1, characterized in that: An oil filling pipe (6) is provided on the side of the cover plate (3), the oil filling pipe (6) passes through the cover plate (3), and the inner end of the oil filling pipe (6) is connected to the oil cavity (5).

3. The mechanical track roller structure with a static seal clamping collar according to claim 1, characterized in that: The cross-sectional size of the sealing strip (502) is larger than the size of the flow opening reserved between the cover plate (3) and the shaft ring (4), and the sealing strip (502) is elastic.

4. The mechanical track roller structure with a static seal clamping collar according to claim 1, characterized in that: A plurality of auxiliary grooves (7) arranged in a circumferential manner are provided on a side surface of the shaft ring (4) close to the cover plate (3); an auxiliary block (8) is slidably connected inside the auxiliary groove (7); and one end of the auxiliary block (8) is in contact with the cover plate (3).

5. A mechanical track roller structure with a static seal clamping collar according to claim 4, characterized in that: An auxiliary spring (9) and an auxiliary telescopic rod (10) are provided inside the auxiliary groove (7), the other ends of the auxiliary spring (9) and the auxiliary telescopic rod (10) are fixed to the auxiliary block (8), and the original length of the auxiliary telescopic rod (10) is greater than the length of the auxiliary groove (7).

6. The mechanical track roller structure with a static seal clamping collar according to claim 1, characterized in that: An end cover (11) is fixed to the outer surface of the cover plate (3), two connecting plates (12) are fixed to the upper surface of the end cover (11), and bolt holes (13) are provided on the upper surfaces of the connecting plates (12).

7. The mechanical track roller structure with a static seal clamping collar according to claim 1, characterized in that: A slot is provided on the upper surface of the cover plate (3), the slot passing through the end cover (11), the cover plate (3) and the axle body (1), and a latch (14) is inserted into the slot.

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