CN-224222924-U - Mine car wheel prosthetic devices

Abstract

The utility model relates to the technical field of maintenance of mining machinery, in particular to a mine car wheel repairing device which comprises a repairing table, a servo motor and a rotary positioning mechanism, wherein the rotary positioning mechanism drives an arc-shaped positioning block to radially expand to clamp a mine car wheel hub through linkage of a screw cylinder, a fixed ring, a movable ring and a U-shaped swinging frame, and the repairing table is provided with a supporting sleeve rod and a balance pipe to ensure rotary stability. According to the utility model, the travel of the movable ring is regulated through the threaded power ring, so that the hub is rapidly positioned, the rim abrasion area is repaired by matching with two welding-protecting welding piles, the repair efficiency is improved, and the service life of the wheel is prolonged. The device has the characteristics of high precision, low vibration and strong adaptability.

Inventors

• ZHANG YINGFEI
• Xiong Chongquan
• YANG JING

Assignees

• 浙江建辉矿建集团有限公司

Dates

Publication Date

20260512

Application Date

20250519

Claims (6)

1. 1. The mine car wheel repairing device is characterized by comprising a mine car wheel (10) and a repairing table (12), wherein a rotary positioning mechanism is arranged at the top of the repairing table (12), a hub at the center of the mine car wheel (10) to be repaired is inserted into the outer side of the rotary positioning mechanism, the rotary positioning mechanism radially expands to support and fix the mine car wheel (10), one side of the rotary positioning mechanism is connected with a servo motor (13) arranged at the top of the repairing table (12), a rim on the mine car wheel (10) is processed by adopting a widening and thickening repairing process, a layer of wear-resistant material is deposited on the worn part of the rim, and a reinforcing steel bar (26) is machined on the outer ring.
2. 2. A mining wheel repairing apparatus according to claim 1, wherein the hub and the rim are connected through spokes, a supporting sleeve is sleeved on an output shaft (14) positioned on the upper side of the repairing table (12), the bottom of the supporting sleeve is fixed on the top of the repairing table (12), and balance pipes (15) are sleeved on two sides of the supporting sleeve.
3. 3. The mine car wheel repairing device according to claim 1, wherein the rotary positioning mechanism comprises an output shaft (14) connected to the output end of the servo motor (13), the end part of the output shaft (14) extends to the top outside of the repairing table (12), a screw cylinder (16) is fixedly arranged on the outer side of the output shaft (14) arranged in the top outer area of the repairing table (12), a fixed ring (17) is fixedly arranged at the end part of the screw cylinder (16) far away from the servo motor (13), a movable ring (18) is sleeved on the screw cylinder (16) on one side of the fixed ring (17) in a sliding manner, a threaded power ring (19) is connected to the side wall of the movable ring (18) far away from the fixed ring (17) in a limiting rotary manner, the threaded power ring (19) is connected to the screw cylinder (16) in a threaded manner, and a plurality of arc-shaped positioning blocks (23) are arranged between the fixed ring (17) and the peripheral outer wall of the movable ring (18) in an annular equidistant manner through a plurality of groups of swing connecting pieces.
4. 4. A mining wheel repairing device according to claim 3, wherein the swinging connecting piece comprises a swinging shaft block (20) arranged on the peripheral outer wall corresponding to the fixed ring (17) and the movable ring (18), the swinging shaft block (20) is connected with a U-shaped swinging frame (22) in a swinging way through a swinging shaft (21), and the end parts, close to the arc-shaped positioning blocks (23), of the U-shaped swinging frames (22) on two sides are also connected to the bottoms of the arc-shaped positioning blocks (23) through the swinging shaft block (20) and the swinging shaft (21).
5. 5. The mine car wheel repairing device according to claim 4, wherein a limit rotating ring (24) is installed on the side wall of the threaded power ring (19) facing the movable ring (18), a limit rotating groove (25) which is rotationally connected with the limit rotating ring (24) is formed in the side wall of the movable ring (18) corresponding to the limit rotating ring (24), and the vertical sections of the limit rotating ring (24) and the limit rotating ring (24) are of T-shaped structures.
6. 6. The mining wheel repairing device according to claim 5, wherein a plurality of through holes are uniformly formed in the circumferential outer wall of the threaded power ring (19), and the through holes are matched with an external pry bar.

Description

Mine car wheel prosthetic devices Technical Field The utility model relates to the technical field of maintenance of mining machinery, in particular to a mine car wheel repairing device. Background The wheels are used as components for directly contacting the electric mine car and the rails, and are subjected to complex mechanical stress, friction force and impact load for a long time, so that the abrasion phenomenon is very common. Serious wheel abrasion not only can lead to the falling of the electric locomotive, cause transportation interruption, but also can cause serious safety accidents such as equipment damage, personal injury and the like. In addition, the worn wheels are frequently replaced, so that a large amount of manpower and material resources are consumed, the operation cost of enterprises is increased, and a plurality of adverse effects are brought to production. In the aspect of abrasion mechanism research, stress distribution, friction characteristics and material failure mechanisms in the process of wheel abrasion are deeply analyzed by means of theories such as material mechanics, tribology and the like. On the aspect of solving measures, on one hand, starting from material selection and manufacturing process, novel wear-resistant materials are developed and wheel manufacturing process is optimized to improve the wear resistance of the wheels, and on the other hand, abnormal acting force between the wheels and the rail is reduced and the wear degree is reduced by improving the rail structure, optimizing the operation control strategy of the electric locomotive and the like. The traditional solution is mainly to directly replace the wheel after the wheel is worn to a certain extent. This approach, while simple and straightforward, is costly, requires not only the purchase of new wheels, but also the use of significant manpower and time to replace. In addition, frequent replacement of the wheels can cause the increase of downtime of the electric locomotive and affect the production efficiency, or the wear resistance of the wheels can be improved by adopting a single wear-resistant technology such as surface hardening treatment, adding a wear-resistant coating and the like. However, these techniques have certain limitations in practical applications, such as the reduction of toughness of the wheel material and the increase of the risk of wheel fracture due to the surface hardening treatment, the limited adhesion and durability of the wear-resistant coating, easy falling off under complex working conditions, and failure to fundamentally solve the problems of wheel wear and falling, and because of the metal material of the wheel, the problems of insufficient positioning, inconvenient movement adjustment and the like exist in the process of performing maintenance treatment on the wheel, Therefore, the technical scheme aims at the problems and designs the mine car wheel repairing device. Disclosure of Invention The utility model aims to provide a mine car wheel repairing device which is used for solving the problems in the background technology. In order to achieve the above purpose, the present utility model provides the following technical solutions: A repairing device for mine car wheels comprises mine car wheels and a repairing table, wherein a rotary positioning mechanism is arranged at the top of the repairing table, a hub (the hub is connected with an axle of an electric locomotive to realize power transmission, the mine car wheels are detached from the axle during repairing, the center of the hub is in a penetrating state) is inserted and connected to the outer side of the rotary positioning mechanism, the rotary positioning mechanism is radially expanded to support and fix the mine car wheels, one side of the rotary positioning mechanism is connected with a servo motor arranged at the top of the repairing table, the servo motor is started to drive the rotary positioning mechanism to control the fixed mine car wheels to rotate, and further the rim (the part of the wheel, which is in direct contact with a track, of which the surface quality and the geometric shape are critical to the wear resistance and the running stability of the wheel) is subjected to widening and thickening repairing process, namely, a layer of wear-resistant material is deposited on the worn part of the rim, and then reinforcing steel bars are machined on the outer ring to widen and thicken the rim. In the embodiment of the invention, the hub and the rim are connected through the spoke, the support sleeve rod with the bottom fixed at the top of the repairing table is sleeved on the output shaft positioned at the upper side of the repairing table, and is used for keeping the stability of the output shaft. Compared with the prior art, the utility model has the beneficial effects that the positioning accuracy is less than or equal to 0.5mm by radially expanding the arc positioning blocks to adapt to hubs with different