CN113895180B

CN113895180B - Track power wheel with removable tread

Info

Publication number: CN113895180B
Application number: CN202111359291.XA
Authority: CN
Inventors: 陈建
Original assignee: Changshu Institute of Technology
Current assignee: Changshu Institute of Technology
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2023-04-21
Anticipated expiration: 2041-11-17
Also published as: CN113895180A

Abstract

The invention discloses a track power wheel with a detachable tread, which comprises a rim and a spoke, wherein the rim comprises a supporting ring and a rubber tread, a first flange is arranged on the inner side of the outer circumferential surface of the spoke, the supporting ring comprises a ring body, a step surface matched with the first flange is arranged at one end of the inner side of the inner circumferential surface of the ring body, a second flange is arranged at one end of the inner side of the outer circumferential surface of the ring body, the rubber tread covers the surfaces of the outer circumferential surface of the ring body and the second flange, a detachable retainer ring is arranged at one end, close to the outer side of the wheel, of the spoke, the rim is limited between the retainer ring and the first flange, the spoke is provided with a plurality of radial telescopic pins, the surface, facing the outer side of the wheel, of the head end of each radial telescopic pin is a slope surface, the surface, facing the inner side of the wheel, of each radial telescopic pin is a vertical surface, the tail end exposed out of the spoke is arranged on the inner circumferential surface of the ring body, and a locking groove matched with the radial telescopic pin is arranged on the inner circumferential surface of the ring body. The invention has simple installation and replacement, does not need special tools and has high maintenance efficiency.

Description

Track power wheel with removable tread

Technical Field

The invention relates to a rail power wheel, in particular to a rail power wheel with a detachable tread.

Background

At present, track traffic equipment is developing to the direction of miniaturization, integration and convenience, and in recent years, multifunctional track equipment such as inspection, rescue, transportation and the like which takes a small-sized track car as a carrier appears, so that the market prospect is huge. In the use process of the rail car, the dispatching requirement of the car body and the rail insulation is met, so that the used wheels are mainly insulated in a rubber tread mode. Because of the structural particularity of railway wheels, it is necessary to provide a rim on the inside of the wheel, and therefore, it is generally necessary to cover the wheel periphery and the outside of the rim with rubber treads. In the use, rubber tread rubs with the rail, and the operating mode is abominable, leads to tread life low, and equipment maintenance frequency is higher, and the cladding is difficult to change at the periphery side and the outer rubber tread of rim, and is long to the maintenance time consuming of rail wheel, and is efficient, and then has further influenced railway construction.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the track power wheel with the detachable tread, which aims to facilitate the replacement and maintenance of the rubber tread, reduce the maintenance time and ensure the reliability and stability of the tread.

The technical scheme of the invention is as follows: the utility model provides a removable track power wheel of tread, includes rim and spoke, the rim cover is established on the spoke, the rim includes supporting ring and rubber tread, the outer peripheral face of spoke is equipped with first flange in the inboard one end that is close to the wheel, the supporting ring includes the ring body, the inner peripheral face of ring body be equipped with in the inboard one end that is close to the wheel with first flange complex step face, the outer peripheral face of ring body is equipped with the second flange in the inboard one end that is close to the wheel, rubber tread cover in the outer peripheral face of ring body with the surface of second flange, the spoke is equipped with detachable retaining ring in the outside one end that is close to the wheel, the retaining ring will the rim is limited in between retaining ring and the first flange, the spoke is equipped with a plurality of radial expansion pin, the head end of radial expansion pin is the slope face towards the one side of the outside of wheel, the head end of radial expansion pin is the vertical face towards the inboard one side of wheel, the radial expansion pin has one and exposes the tail end outside the spoke, the ring body is equipped with radial expansion pin with the radial inner peripheral face with the locking groove.

Further, in order to facilitate the separation of the rim from the spoke, the first flange is provided with a plurality of axial dismounting threaded holes.

Further, the step surface of the inner peripheral surface of the ring body is a conical surface or a curved surface inclined to the wheel axle.

Further, the end face, close to the outer side of the wheel, of the supporting ring is a conical surface inclined to the wheel axle of the wheel, and the outer peripheral surface of the retainer ring is matched with the end face of the supporting ring in a fitting mode.

Further, the spoke is provided with a plurality of spoke plates, the spoke plates are provided with radial pin grooves, the radial telescopic pins are arranged in the pin grooves through springs, the tail ends of the radial telescopic pins penetrate out of the bottoms of the pin grooves, the parts, extending out of the pin grooves, of the tail ends of the radial telescopic pins are provided with nuts with adjustable positions, and the nuts control the protruding amounts of the radial telescopic pins from the outer peripheral surfaces of the spoke plates.

Further, the spoke plate is provided with a grease injection hole communicated with the pin groove.

Further, the pin grooves form pin openings in the outer peripheral surface of the spoke, and the spoke plate is provided with auxiliary dismounting holes which are obliquely arranged towards the pin openings.

Further, in order to facilitate the sleeving of the rim and the spoke, the outer circumferential surface of the spoke is a conical surface gradually expanding from the outer side to the inner side.

Further, the center of the spoke is provided with a connecting hole, and the spoke is connected with a rotor of the hub motor through the connecting hole.

The technical scheme provided by the invention has the advantages that:

according to the technical scheme, the rim is formed by the support ring and the rubber tread, the rim is fixedly mounted on the spoke in a check ring mode, the rim is positioned through the first flange and the radial telescopic pin, the axial runout of the rim is reduced, the end face of the support ring is set to be a conical surface, the axial force during mounting of the baffle is adjusted, and the runout tolerance of the rubber tread along the central shaft is met by utilizing the acting force of the baffle to the support ring. According to the invention, special tools are not required for mounting and dismounting the rim, and the mode of combining the support ring and the rubber tread avoids singly replacing the rubber tread, is beneficial to quick on-site dismounting and replacing, reduces maintenance time and improves efficiency.

Drawings

FIG. 1 is a perspective view of a tread removable rail powered wheel of an embodiment.

FIG. 2 is a schematic longitudinal section of a tread removable rail powered wheel of an embodiment.

FIG. 3 is a schematic longitudinal cross-sectional perspective view of a tread removable rail powered wheel of an embodiment.

FIG. 4 is a schematic elevational view of a tread removable track-powered wheel of an embodiment.

Detailed Description

The present invention is further described below with reference to examples, which are to be construed as merely illustrative of the present invention and not limiting of its scope, and various modifications to the equivalent arrangements of the present invention will become apparent to those skilled in the art upon reading the present description, which are within the scope of the appended claims.

As shown in fig. 1 to 4, the tread-replaceable track power wheel of the present embodiment includes a rim 1, a spoke 2 and a hub motor 3, a connecting hole is provided in the center of the spoke 2, the spoke 2 is fixedly connected with a rotor of the hub motor 3 through the connecting hole, the hub motor 3 drives the track power wheel to rotate, and the rim 1 is sleeved on the spoke 2. Considering the requirement of the rail power wheel insulation, the wheel should have a rim for preventing derailment, so the rim 1 is not formed by a single rubber tread, but comprises a supporting ring 101 and the rubber tread 102, wherein the supporting ring 101 is similar to a framework embedded in the rubber tread 102, on one hand, the strength of the rubber tread 102 can be improved through the supporting ring 101, and on the other hand, the rim 1, namely the rubber tread 102, can be conveniently replaced integrally. Specifically, the outer peripheral surface of the spoke 2 is a tapered surface gradually expanding from the outer side toward the inner side near the wheel, i.e., the outer side has a small diameter, and the inner side has a large diameter, and a first flange 201 is provided at one end of the inner side of the spoke 2. The support ring 101 of the rim 1 includes a ring body whose inner peripheral surface is provided with a stepped surface 103 at an end near the inner side of the wheel, which is fitted with a first flange 201. When the rim 1 is fitted over the spoke 2, the stepped surface 103 abuts against the first flange 201 to restrict the rim 1 from moving inward of the wheel. In order to facilitate the separation of the rim 1 from the web 2 during maintenance, a plurality of axial dismounting screw holes 202 are provided in the first flange 201, and the step surface 103 of the ring body is provided as a conical surface or a curved surface inclined to the wheel axis. When the rim 1 and the spoke 2 are separated, after the bolts are screwed into the screw holes 202 and the tail ends of the bolts touch the step surface 103, the bolt tightening force becomes an outward and upward force applied to the rim 1, thereby facilitating separation of the rim 1 and the spoke 2. The outer peripheral surface of the ring body is provided with a second flange 104 at one end close to the inner side of the wheel, the rubber tread 102 covers the outer peripheral surface of the ring body and the surface of the second flange 104, and the second flange 104 embedded into the rubber tread 102 plays a role in preventing the rubber tread 102 from slipping off and reinforcing the rim strength.

As shown in fig. 4, the spoke 2 is provided with a detachable retainer ring 4 at one end near the outer side of the wheel, the end face 101a of the support ring 101 near the outer side of the wheel is a conical surface inclined to the wheel axle, the section of the retainer ring 4 is wedge-shaped, and the outer peripheral surface of the retainer ring 4 is matched with the end face 101a of the support ring 101. When the rim 1 is sleeved on the spoke 2 and reaches a preset limit matching position, the retainer ring is mounted on the outer side end face of the spoke 2 through the bolts 5, the rim 1 is limited between the retainer ring 4 and the first flange 201 through matching of the outer peripheral face of the retainer ring 4 and the end face 101a of the supporting ring 101, and the pretightening force of 6 bolts 5 is adjusted, so that the runout tolerance of the rubber tread 102 along the central shaft meets the requirement.

Referring to fig. 2 and 3 again, in order to further reduce the axial play of the rim 1, in this embodiment, four radial expansion pins 6 are provided on the spoke 2, radial pin grooves 204 are provided on four spoke plates 203 of the spoke 2, the spoke plates 203 are symmetrically distributed with the wheel axle as the center, the pin grooves 204 form openings 205 on the outer peripheral surface of the spoke 2, the radial expansion pins 6 are provided in the pin grooves 204, and the spoke plates 203 are provided with symmetrical weight reducing holes 203a, so as to reduce unsprung mass and improve running quality. In this embodiment, the pin groove 204 is formed as a stepped hole, the diameter of the lower portion (the end close to the wheel axle) is larger, the diameter of the upper portion (the end close to the outer peripheral surface of the spoke) is smaller, the tail portion of the radial expansion pin 6 is connected with a limiting ring 7, the limiting ring 7 is limited at the lower portion of the stepped hole, the head portion of the radial expansion pin 6 is slightly thicker, a spring 8 is arranged between the head portion of the radial expansion pin 6 and the bottom surface of the upper portion of the stepped hole, when the radial expansion pin 6 moves downwards under the action of an external force, the spring 8 is compressed, and after the external force is removed, the radial expansion pin 6 extends out from the opening 205 of the spoke 2 under the action of the spring 8. Meanwhile, in order to ensure the convenience of installation, the surface of the head end of the radial expansion pin 6 facing the outer side of the wheel is a slope surface, the surface of the head end of the radial expansion pin 6 facing the inner side of the wheel is a vertical surface, and the inner circumferential surface of the ring body is provided with a locking groove 105 matched with the radial expansion pin 6. When the rim 1 is sleeved on the spoke 2, the inner side end surface of the rim 1 firstly acts on the slope surface of the head end of the radial expansion pin 6 to generate downward acting force to press the radial expansion pin 6, and when the rim 1 moves further axially to the position that the locking groove 105 is positioned above the radial expansion pin 6, the radial expansion pin 6 is ejected and clamped into the locking groove 105 under the action of the spring 8 to complete locking.

The tail of the radial expansion pin 6 is threaded from the part of the tail of the radial expansion pin 6 extending out of the pin groove 204 of the spoke plate 203 except for the connection of the limit ring 7, and the part extending out of the pin groove 204 is provided with a position-adjustable nut 9, so that the extending amount of the radial expansion pin 6 from the outer peripheral surface of the spoke 2 can be controlled by screwing the nut 9. In the process of removing the rim 1, the nut 9 is screwed to fully retract the radially extending pin 6 into the pin slot 204, thereby releasing the lock with the rim 1. In addition, the position of the nut 9 can also be used as an indicator of whether the radial expansion pin 6 enters the locking groove 105 of the rim 1, so that the danger caused by the locking is prevented.

As a further optimization of the above embodiment, grease injection holes 206 communicating with the pin grooves 204 are formed in the spoke plates 203 in the lateral direction of the pin grooves 204, and the radial expansion pins 6 and springs 8 are prevented from being corroded by injecting grease. In addition, the spoke plate 203 is provided with an auxiliary dismounting hole 207 which is inclined towards the pin opening 205, and when the rim 1 is dismounted, the rim 1 can be assisted to move outwards by means of pressing a screw or injecting oil pressure into the auxiliary dismounting hole 207, so that the detachment of the rim 1 and the spoke 2 which are engaged after long-time use is facilitated.

Claims

1. The utility model provides a removable track power wheel of tread, includes rim and spoke, the rim cover is established on the spoke, its characterized in that, the rim includes supporting ring and rubber tread, the outer peripheral face of spoke is being close to the inboard one end of wheel and is equipped with first flange, the supporting ring includes the ring body, the inner peripheral face of ring body is being close to the inboard one end of wheel be equipped with first flange complex step face, the outer peripheral face of ring body is being close to the inboard one end of wheel and is equipped with the second flange, the rubber tread cover in the outer peripheral face of ring body with the surface of second flange, the spoke is being close to the outside one end of wheel and is equipped with the detachable retaining ring, the retaining ring will the rim is restricted in between retaining ring and the first flange, the spoke is equipped with a plurality of radial expansion pin, the head end of radial expansion pin is towards the one side of the outside of wheel is the ramp surface, the radial expansion pin has one and exposes in the tail end of spoke body, the ring inner peripheral face that is being close to the wheel is equipped with the second flange, the radial expansion pin is equipped with the radial expansion pin groove is equipped with radial expansion pin groove from the radial expansion pin groove is equipped with radial expansion pin groove the radial extension from the radial expansion pin groove of the end of the spoke.

2. The tread removable rail powered wheel of claim 1, wherein the first flange is provided with a plurality of axial removal threaded holes.

3. The tread removable rail powered wheel of claim 2, wherein the step surface of the inner peripheral surface of the ring body is a curved surface inclined to the wheel axle.

4. The removable tread rail power wheel of claim 1, wherein the end face of the support ring near the outside of the wheel is a conical surface inclined to the wheel axle, and the outer peripheral surface of the retainer ring is matched with the end face of the support ring in a fitting way.

5. The tread removable rail powered wheel of claim 1, wherein the spoked plates are provided with grease injection holes in communication with the pin grooves.

6. The removable tread rail powered wheel of claim 1, wherein the pin grooves form pin openings in the outer peripheral surface of the spokes and the spoked plate is provided with auxiliary removal holes disposed obliquely toward the pin openings.

7. The removable tread rail powered wheel of claim 1, wherein the outer peripheral surface of the spokes is tapered from the outside to the inside.

8. The tread removable rail powered wheel of claim 1, wherein the spoke has a connecting hole in the center thereof, the spoke being connected to the rotor of the in-wheel motor through the connecting hole.