Crown block driven wheel tire changing vehicle tool
By designing a crane-driven wheel-changing trolley tool, which utilizes the trolley's running track and lead screw connection, the efficient disassembly and installation of crane wheels are achieved. This solves the problems of wasted manpower and time and safety hazards in the replacement of metallurgical crane wheels, and improves work efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-03-10
AI Technical Summary
The process of changing wheels on a 100-ton metallurgical overhead crane requires a lot of manpower and time, and poses safety hazards. In particular, when changing intermediate wheels, the outer wheels must be removed first, which increases the workload and safety risks.
Design a crane-driven wheel changing cart tool, comprising a trolley, a base, a base plate, bearings, and a trolley plate. The wheel assembly can be disassembled and installed via a trolley running track and a lead screw connection, avoiding the use of truck crane equipment.
It shortened maintenance time, reduced the labor intensity of workers, eliminated the safety hazard of falling from heights, and improved work efficiency.
Smart Images

Figure CN223983368U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a tire changing cart tool for overhead cranes, belonging to the technical field of special tools and facilities in the metallurgical industry. Background Technology
[0002] The standard procedure for replacing wheels on a 100-ton metallurgical overhead crane requires 6-8 fitters and 6-8 hours of maintenance time just to replace the first set of wheels, along with an 80-ton truck crane for assistance. Furthermore, when replacing the 225-ton crane wheels as a group, the wheels must be completely disassembled and then pushed horizontally along the track, posing a safety hazard. Additionally, when replacing the middle wheels, the crane's structural design restricts horizontal (along the track) work, necessitating the complete disassembly of the first set of outer wheels before replacing the second set. This effectively doubles the workload, inevitably increasing maintenance time to 10-12 hours and further enhancing safety risks. Utility Model Content
[0003] The purpose of this utility model is to provide a crane driven tire changing cart tool that can save maintenance time, reduce the labor intensity of workers, and eliminate the need for a truck crane, thus solving the problems existing in the background technology.
[0004] The technical solution of this utility model is:
[0005] A crane driven tire changing cart tool includes a trolley, a base, a base plate, bearings, and a trolley plate. The base has two parallel base plates, each with several spaced bearings. The two parallel base plates and the spaced bearings on each base plate form two trolley running tracks. Each trolley running track has one trolley, and each trolley has a trolley plate. The trolley plates on the two trolleys constitute a support plate that cooperates with the crane wheel assembly.
[0006] Furthermore, the trolley uprights on the two trolleys are connected together by lead screw two and lead screw nut two, and the two parallel uprights on the machine base are connected together by lead screw one and lead screw nut one.
[0007] Furthermore, the bearing is rotatably connected to the machine base plate via a pin.
[0008] By using this utility model, the crane wheel set can be removed and placed directly on a trolley. The trolley is then used to move the wheel set out along the track direction. Then, a new wheel set is placed on the trolley and pushed into the crane end beam along the track direction, which solves the problem of replacing intermediate wheel sets.
[0009] The beneficial effects of this utility model are: the intermediate wheel set of the 100-ton overhead crane can save 4-6 hours of maintenance time, reduce the labor intensity of workers, and at the same time eliminate the need for a truck crane, thus eliminating the safety hazard of falling from heights. Attached Figure Description
[0010] Figure 1 This is the front view of the present utility model;
[0011] Figure 2 This is a side view of the present invention;
[0012] Figure 3 This is a top view of the present invention;
[0013] Figure 4 This is a schematic diagram of the assembly of the trolley and the trolley upright plate of this utility model;
[0014] In the diagram: 1. Cart 2. Base 3. Wheel set 4. Base plate 5. Baffle 6. Bolt 7. Pin 8. Bearing 9. Lead screw 1 10. Lead screw nut 11. Cart plate 11. Lead screw 2 12. Lead screw nut 2 13. Wheel set bolt 14. Detailed Implementation
[0015] The present invention will be further described below with reference to the accompanying drawings and examples.
[0016] See attached document Figure 1 A crane driven tire changing tool includes a trolley 1, a base 2, a base plate 4, bearings 8, and a trolley plate 11. The base 2 is provided with two parallel base plates 4, and each base plate 4 is provided with several spaced bearings 8. The two parallel base plates 4 on the base 2 and the spaced bearings 8 on each base plate 4 form two trolley running tracks. Each trolley running track is provided with one trolley 1, and each trolley 1 is provided with a trolley plate 11. The trolley plates 11 on the two trolleys 1 constitute a support plate that cooperates with the crane wheel set 3.
[0017] In this example, refer to the appendix. Figure 1-4 Two parallel base plates 4 are vertically fixed on the base 2. Each base plate 4 is rotatably connected by a pin 7 to several bearings 8 arranged in a row at intervals. The two base plates 4 are connected together by a lead screw 9 and a lead screw nut 10. The two parallel base plates 4 on the base 2 and the bearings 8 arranged at intervals on each base plate 4 form two trolley running tracks.
[0018] There are two trolleys 1, which are respectively set on the corresponding trolley running track. Each trolley 1 is fixed with a trolley upright plate 11. The two trolley upright plates 11 are connected together by a second lead screw 12 and a second lead screw nut 13. The two trolley upright plates 11 form a support plate that cooperates with the crane wheel set 3.
[0019] To use, follow these steps:
[0020] (1) First, lift the overhead crane with a jack;
[0021] (2) Place the tire cart in the designated location;
[0022] (3) Slowly lower wheel set 3 onto running trolley 1, and then remove wheel set bolt 14;
[0023] (4) Use the trolley 1 to move the wheel set 3 out along the track direction;
[0024] (5) Finally, the new wheelset is transported back for installation using the reverse steps.
Claims
1. A crown wheel changing tool for a crown wheel of a head sheave, characterized by: The invention relates to a trolley (1), a base (2), base vertical plates (4), bearings (8) and trolley vertical plates (11), wherein two base vertical plates (4) are arranged in parallel on the base (2), a plurality of bearings (8) are arranged at intervals on each base vertical plate (4), the two base vertical plates (4) arranged in parallel on the base (2) and the bearings (8) arranged at intervals on each base vertical plate (4) form two trolley running tracks, one trolley (1) is arranged on each trolley running track, one trolley vertical plate (11) is arranged on each trolley (1), and the trolley vertical plates (11) on the two trolleys (1) form a support plate matched with a crown wheel set (3) of a headgear.
2. The crown wheel changing trolley for a head sheave drive wheel as claimed in claim 1 wherein: The trolley vertical plates (11) on the two trolleys (1) are connected together by a screw rod II (12) and a screw nut II (13), and the two base vertical plates (4) arranged in parallel on the base (2) are connected together by a screw rod I (9) and a screw nut I (10).
3. The head wheel retreading vehicle of claim 1 or 2, wherein: The bearings (8) are rotatably connected to the base vertical plates (4) by pin shafts (7).