A stable and wear-resistant TBM tunnel battery traction wheel set

Abstract

A TBM tunnel battery traction wheel set that runs smoothly and is wear-resistant, relates to the technical field of traction wheel set devices, and includes a traction wheel set body, the traction wheel set body includes a drive shaft, a wheel, and a bearing, the traction wheel set body is connected to the tractor suspension through a bearing, the wheel includes a rim and a tread, and a shock-absorbing rim that can move along the axis of the drive shaft is also installed at the end of the tread away from the rim, and the tread between the outer end face of the rim and the inner end face of the shock-absorbing rim on the same side is used in conjunction with a rail. The present invention provides a TBM tunnel traction wheel set that runs smoothly and is wear-resistant, and by improving the structure of the traction wheel set, the TBM tunnel tractor can maintain high-speed and stable driving, and can avoid rapid wear of the rim by the rail, thereby improving the safety performance of the TBM tunnel tractor and extending the service life of the traction wheel set.

Description

Technical Field

[0001] The invention relates to the technical field of traction wheel set devices, and in particular to a TBM tunnel battery traction wheel set which is stable in operation and wear-resistant. Background Art

[0002] TBM tunnel battery tractors have high safety requirements when discharging slag or transporting materials. If a rollover accident occurs, it will cause great property losses and even delay the construction period. The tread of the wheel set of TBM tunnel battery tractors in the prior art is mostly a conical structure, which helps to keep the tractor moving along the center line of the rail during operation and reduce the wear of the rail on the wheel flange, but it is also the reason for the tractor to run unsteadily or even move in a serpentine manner.

[0003] In the prior art, there is a method of making the tractor run smoothly by reducing the taper of the tread. However, while the running is smooth, it also causes the wheel rim to wear more severely, which greatly reduces the service life of the wheel. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a TBM tunnel battery traction wheel set that runs smoothly and is wear-resistant. By improving the structure of the traction wheel set, the TBM tunnel battery traction vehicle can maintain high-speed and stable driving and avoid rapid wear of the wheel flange by the rails, thereby improving the safety performance of the TBM tunnel battery traction vehicle and extending the service life of the traction wheel set.

[0005] To achieve the above object, the technical solution of the present invention is:

[0006] A TBM tunnel battery traction wheel set with stable operation and wear resistance comprises a traction wheel set body installed at the bottom of a tractor suspension, the traction wheel set body comprises a drive shaft, wheels, and bearings, the wheels are installed at both sides of the drive shaft, the bearings are installed at both ends of the drive shaft outside the wheels, the traction wheel set body is connected to the tractor suspension through the bearings, the wheels comprise a rim and a tread, a shock-absorbing rim movable along the axis of the drive shaft is further installed at one end of the tread away from the rim, and the tread between the outer end face of the rim and the inner end face of the shock-absorbing rim on the same side is used in conjunction with a rail.

[0007] Preferably, a distance A between an outer end surface of the wheel rim on one side and an inner end surface of the shock-absorbing wheel rim on the other side is smaller than a distance B between an inner end surface of the rail on one side and an outer end surface of the rail on the other side.

[0008] Preferably, the shock-absorbing rim is detachably connected to the wheel.

[0009] Preferably, the tread constitutes a wheel body with a truncated cone structure, and the small diameter end of the truncated cone structure faces outward, and the shock-absorbing rim includes an annular plate A that surrounds the outer end of the tread and is coaxial with the drive shaft, and the annular plate A is connected to the outer end face of the wheel body through an elastic mechanism.

[0010] Preferably, the inner hole diameter of the annular plate A is larger than the outer diameter of the outer end of the tread, and the outer diameter of the annular plate A is smaller than the outer diameter of the wheel rim.

[0011] Preferably, the elastic mechanism includes an annular plate B which is arranged on the outside of the annular plate A and is integrally formed with the annular plate A. The annular plate B is coaxial with the annular plate A, and the diameter of the inner hole of the annular plate B is smaller than the diameter of the inner hole of the annular plate A, and surrounds the outer circumference of the driving shaft where the outer side of the tread is located. An elastic component is connected between the end of the annular plate B close to the inner hole and the outer end face of the wheel body.

[0012] Preferably, the elastic component includes a sliding hole arranged along the axial direction of the driving shaft and opening at the outer end of the wheel body, a slider slidably connected to the sliding hole, and a limiting ring A fixedly connected to the outer port of the sliding hole. A threaded hole is provided on the end surface of the slider facing the opening of the sliding hole, and a countersunk bolt hole is provided on the annular plate B opposite to the opening of the sliding hole. A bolt is installed at the countersunk bolt hole, and the bottom end of the bolt is provided with an external thread and is screwed with the threaded hole. A return spring is also connected to the outer periphery of the screw rod of the bolt and between the slider and the limiting ring A.

[0013] Preferably, the bolt is a high-strength bolt, and the screw rod is slidably connected to the inner hole of the limiting ring A.

[0014] Preferably, a guide sleeve is fixedly connected to the inner hole of the annular plate B. The guide sleeve is sleeved on the drive shaft between the shock-absorbing wheel rim and the bearing and is slidably connected to the outer wall surface of the drive shaft.

[0015] Preferably, a limiting ring B is also fixedly connected to the outer wall surface of the driving shaft located on the outer side of the guide sleeve and on the inner side of the bearing.

[0016] The TBM tunnel battery traction wheel pair of the present invention, which runs smoothly and is wear-resistant, has the following beneficial effects:

[0017] Through technical improvements, the present invention can improve the running stability of the TBM tunnel battery tractor by reducing the wheel body taper, reduce the risk during the operation process, and on the basis of maintaining high-speed and stable operation, can also reduce the wear of the wheel rim through the shock-absorbing wheel rim, thereby increasing the service life of the traction wheel set body, and the shock-absorbing wheel rim is detachable and convenient to replace. Through the low-cost consumption of the shock-absorbing wheel rim, the use cost of the TBM tunnel battery tractor wheel set is significantly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 : A schematic diagram of the front structure of the present invention;

[0019] Figure 2 : A-A1 section view of the present invention;

[0020] Figure 3 : A front structural cross-sectional view of the present invention;

[0021] Figure 4 : An enlarged schematic diagram of the local structure at B of the present invention;

[0022] Figure 5 : An enlarged schematic diagram of the local structure at C of the present invention;

[0023] Figure 6 : Schematic diagram of the cooperation between the present invention and the rail in the use state;

[0024] Figure 7 : A schematic diagram of an embodiment of the present invention provided with a guide sleeve;

[0025] 1: driving shaft, 2: wheel, 20: wheel body, 21: wheel rim, 211: outer end face of wheel rim, 22: tread, 221: outer end face of wheel body, 23: shock-absorbing rim, 231: inner end face of shock-absorbing rim, 232: outer end face of shock-absorbing rim, 233: annular plate A, 234: annular plate B, 3: bearing, 4: distance A, 5: distance B, 6: rail, 61: inner end face of rail, 62: outer end face of rail, 7: bolt, 71: bolt cap, 72: screw, 73: bottom end, 8: countersunk bolt hole, 9: slider, 91: threaded hole, 10: return spring, 11: sliding hole, 12: limiting ring A, 13: guide sleeve, 14: limiting ring B. DETAILED DESCRIPTION

[0026] The following describes in detail the implementation mode of the present invention in a step-by-step manner. The description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the purpose of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore cannot be understood as a limitation on the present invention.

[0028] In one embodiment, the present invention provides a stable and wear-resistant TBM tunnel battery traction wheel pair, such as Figure 1 As shown, the tractor wheel pair body is installed at the bottom of the tractor suspension (not shown in the figure), the tractor wheel pair body includes a drive shaft 1, a wheel 2, and a bearing 3. The wheel 2 is installed on both sides of the drive shaft 1, and the bearing 3 is installed at both ends of the drive shaft 1 outside the wheel 2. The tractor wheel pair body is connected to the tractor suspension through the bearing 3. The wheel 2 includes a rim 21 and a tread 22. A shock-absorbing rim 23 that can move along the axis of the drive shaft 1 is also installed at one end of the tread 22 away from the rim 21. Figure 3 , Figure 6 As shown, the tread 22 between the outer end surface of the rim 21 and the inner end surface 231 of the shock-absorbing rim on the same side is used in conjunction with the rail 6; in this embodiment, by providing the shock-absorbing rim 23, when the TBM tunnel battery tractor turns or runs at high speed, the shock-absorbing rim 23 and the rail 6 elastically offset each other, which can reduce the vibration of the TBM tunnel battery tractor in the left and right directions, and at the same time, reduce the wear of the rail 6 on the rim 21.

[0029] In a further embodiment, Figure 6 As shown, the distance A4 between the outer end face 211 of the wheel rim on one side and the inner end face 231 of the shock-absorbing wheel rim on the other side is smaller than the distance B5 between the inner end face 61 of the rail on one side and the outer end face 62 of the rail on the other side; when the TBM tunnel battery tractor turns or travels at high speed, before the outer end face 211 of the wheel rim on one side abuts against the inner end face 61 of the rail on one side, the outer end face 62 of the rail on the other side abuts against the inner end face 231 of the shock-absorbing wheel rim on the other side in advance, thereby avoiding the wear of the rail 6 on the wheel rim 21.

[0030] In a further embodiment, the shock-absorbing rim 23 is detachably connected to the wheel 2; since the wear is concentrated on the shock-absorbing rim 23, and the shock-absorbing rim 23 is detachable, the wear resistance of the rim 21 can be maintained by replacing the shock-absorbing rim 23, thereby extending the service life of the TBM tunnel battery traction wheel pair and reducing the use cost of the TBM tunnel battery traction wheel pair.

[0031] In a further embodiment, Figure 1 , Figure 3 As shown, the tread 22 constitutes a wheel body of a truncated cone structure, and the small diameter end of the truncated cone structure faces outward, and the shock-absorbing rim 23 includes an annular plate A233 surrounding the outer end of the tread 22 and coaxial with the drive shaft 1, and the annular plate A233 is connected to the outer end face 221 of the wheel body through an elastic mechanism; on the basis of the above embodiments, the wear of the rim 21 can be effectively reduced by setting the shock-absorbing rim 23, so in order to make the TBM tunnel battery tractor run smoothly, the taper of the wheel body can be reduced. After the taper of the wheel body is reduced, the TBM tunnel battery tractor can maintain high-speed and stable operation and avoid excessive wear of the rim.

[0032] In a further embodiment, Figure 1 , Figure 3 As shown, the inner hole diameter of the annular plate A233 is larger than the outer diameter of the outer end of the tread 22, and the outer diameter of the annular plate A233 is smaller than the outer diameter of the rim 21; through this embodiment, the annular plate A233 has a relatively free space to move along the axis of the drive shaft 1.

[0033] In a further embodiment, Figure 3 , Figure 4 As shown, the elastic mechanism includes an annular plate B234 which is arranged on the outside of the annular plate A233 and is integrally formed with the annular plate A233. The annular plate B234 is coaxial with the annular plate A233, and the diameter of the inner hole of the annular plate B234 is smaller than the diameter of the inner hole of the annular plate A233, and surrounds the outer periphery of the driving shaft 1 where the outer side of the tread 22 is located. An elastic component is connected between one end of the annular plate B234 close to the inner hole and the outer end face 221 of the wheel body.

[0034] In a further embodiment, Figure 3 , Figure 4 , Figure 5 As shown, the elastic component includes a sliding hole 11 arranged along the axial direction of the driving shaft 1 and opening at the outer end of the wheel body, a slider 9 slidably connected to the sliding hole 11, and a limiting ring A12 fixedly connected to the outer port of the sliding hole 11. A threaded hole 91 is provided on the end face of the slider 9 facing the opening of the sliding hole 11, and a countersunk bolt hole 8 is provided on the annular plate B234 opposite to the opening of the sliding hole 11. A bolt 7 is installed at the countersunk bolt hole. The bottom end 73 of the bolt 7 is provided with an external thread and passes through the limiting ring A12 to be screwed with the threaded hole 91. A reset spring 10 is also connected to the outer periphery of the screw rod 72 of the bolt 7 and between the slider 9 and the limiting ring A12. This embodiment discloses a preferred structure of the elastic component. When the TBM tunnel battery tractor is running, as shown in FIG. Figure 6 As shown, the outer end face 62 of the other side rail abuts against the inner end face 231 of the other side shock-absorbing wheel rim, and the return spring 10 shortens the lateral displacement distance of the TBM tunnel battery tractor and reduces the friction between the rail 6 and the wheel rim 21.

[0035] In a further embodiment, the bolt 7 is a high-strength bolt, and the screw rod 72 is slidably connected to the inner hole of the limiting ring A12.

[0036] In a further embodiment, Figure 7As shown, a guide sleeve 13 is fixedly connected to the inner hole of the annular plate B234, and the guide sleeve 13 is sleeved on the drive shaft 1 between the shock-absorbing rim 23 and the bearing 3, and is slidably connected to the outer wall surface of the drive shaft 1; in this embodiment, by providing the guide sleeve 13, the shock-absorbing rim 23 can be prevented from tilting and deforming when squeezed by the rail 6, thereby maintaining movement along the axial direction of the drive shaft 1.

[0037] In a further embodiment, Figure 7 As shown, the outer wall surface of the driving shaft 1 located on the outer side of the guide sleeve 13 and the inner side of the bearing 3 is also fixedly connected with a limiting ring B14; the guide sleeve 13 is separated from the bearing 3 by the limiting ring B14, thereby protecting the safe use of the bearing 3.

Claims

1. A stable and wear-resistant TBM tunnel battery traction wheel set, characterized by: The invention comprises a traction wheel pair body installed at the bottom of the tractor suspension, the traction wheel pair body comprises a driving shaft, a wheel, and a bearing, the wheel is installed at both sides of the driving shaft, the bearing is installed at both ends of the driving shaft outside the wheel, the traction wheel pair body is connected with the tractor suspension through the bearing, the wheel comprises a rim and a tread, a shock-absorbing rim movable along the axis of the driving shaft is also installed at one end of the tread away from the rim, the tread between the outer end face of the rim and the inner end face of the shock-absorbing rim on the same side is used in conjunction with the rail; the distance A between the outer end face of the rim on one side and the inner end face of the shock-absorbing rim on the other side is smaller than the distance B between the inner end face of the rail on one side and the outer end face of the rail on the other side; when the TBM tunnel battery tractor turns or travels at high speed, before the outer end face of the rim on one side abuts against the inner end face of the rail on one side, the outer end face of the rail on the other side abuts against the inner end face of the shock-absorbing rim on the other side in advance, thereby avoiding the wear of the rim by the rail.

2. A stable and wear-resistant TBM tunnel battery traction wheel set as claimed in claim 1, characterized in that: The shock-absorbing rim is detachably connected to the wheel.

3. A stable and wear-resistant TBM tunnel battery traction wheel set as claimed in claim 2, characterized in that: The tread constitutes a wheel body with a truncated cone structure, and the small diameter end of the truncated cone structure faces outward. The shock-absorbing rim includes an annular plate A surrounding the outer end of the tread and coaxial with the drive shaft. The annular plate A is connected to the outer end surface of the wheel body through an elastic mechanism.

4. A stable and wear-resistant TBM tunnel battery traction wheel set as claimed in claim 3, characterized in that: The inner diameter of the annular plate A is larger than the outer diameter of the outer end of the tread, and the outer diameter of the annular plate A is smaller than the outer diameter of the wheel rim.

5. A stable and wear-resistant TBM tunnel battery traction wheel set as claimed in claim 4, characterized in that: The elastic mechanism includes an annular plate B which is arranged on the outside of the annular plate A and is integrally formed with the annular plate A. The annular plate B is coaxial with the annular plate A, and the diameter of the inner hole of the annular plate B is smaller than the diameter of the inner hole of the annular plate A, and surrounds the outer circumference of the driving shaft where the outer side of the tread is located. An elastic component is connected between the end of the annular plate B close to the inner hole and the outer end face of the wheel body.

6. A stable and wear-resistant TBM tunnel battery traction wheel set as claimed in claim 5, characterized in that: The elastic component includes a sliding hole arranged along the axial direction of the driving shaft and opening at the outer end of the wheel body, a slider slidably connected to the sliding hole, and a limit ring A fixedly connected to the outer port of the sliding hole. A threaded hole is provided on the end face of the slider facing the opening of the sliding hole, and a countersunk bolt hole is provided on the annular plate B opposite to the opening of the sliding hole. A bolt is installed at the countersunk bolt hole. The bottom end of the bolt is provided with an external thread and is screwed with the threaded hole. A return spring is also connected to the outer periphery of the screw rod of the bolt and between the slider and the limit ring A.

7. A stable and wear-resistant TBM tunnel battery traction wheel set as claimed in claim 6, characterized in that: The bolts are high-strength bolts, and the screw rod is slidably connected to the inner hole of the limiting ring A.

8. A stable and wear-resistant TBM tunnel battery traction wheel set as claimed in claim 7, characterized in that: A guide sleeve is fixedly connected to the inner hole of the annular plate B. The guide sleeve is sleeved on the drive shaft between the damping wheel rim and the bearing and is slidably connected to the outer wall surface of the drive shaft.

9. A stable and wear-resistant TBM tunnel battery traction wheel set as claimed in claim 8, characterized in that: A limiting ring B is also fixedly connected to the outer wall surface of the driving shaft located on the outer side of the guide sleeve and the inner side of the bearing.

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