Rim dismounting device

Abstract

The utility model discloses a rim dismounting device which is characterized in that the rim dismounting device comprises a main body drawing rod, a drawing screw rod is arranged in the main body drawing rod, and an operation torsion rod is arranged at the rear end of the drawing screw rod; a drawing sliding barrel is arranged on the drawing screw rod, and the drawing sliding barrel is connected with the main body drawing rod in a sliding manner; the front part of the main body drawing rod penetrates through the drawing sliding barrel, and a top pressure plate is fixed at the front end of the main body drawing rod; the rear end of the drawing sliding cylinder is rotationally connected with a drawing pry; a tight supporting lead screw is arranged in the drawing sliding barrel, the rear portion of the tight supporting lead screw penetrates through the drawing lead screw, and the tight supporting lead screw and the drawing lead screw are rotationally and slidably connected. A tight supporting knob is arranged at the rear end of the tight supporting lead screw, and a tight supporting mechanism is arranged on the tight supporting lead screw; by means of the device, the inner side of the rim can share stress and disperse drawing force when the rim is disassembled, the stress stability is improved, the disassembling operation is convenient and fast, and the working efficiency is improved; and meanwhile, the damage rate of rim dismounting operation is reduced, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly tools, in particular to a wheel rim disassembly device. Background Art

[0002] Due to the uneven roads underground, truck tires are severely worn. Therefore, in order to ensure safety underground and prevent tire blowouts, tires need to be replaced regularly. Before replacing the tires, the rims need to be removed from the truck. Due to the narrow gap between the rims and the axle, dust, gravel, etc. are easily stuck during operation; and due to the high humidity in the air underground, the rims are prone to corrosion and rust. Therefore, operators cannot easily remove the rims by hand, and need to use a special rim removal device to remove the rims.

[0003] The existing rim removal device needs to be buckled with the rim cover first, and then force is applied to pull the rim. In this process, since only the rim cover is pulled, the rim cover bears all the pulling force, and the force on the rim is unstable, making the rim removal operation very difficult, thereby affecting work efficiency; moreover, since the force on the rim cover is uneven, it is very easy to tear the rim during the pulling process, and the rim often needs to be welded and repaired later, or even directly replaced, resulting in high maintenance costs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a rim disassembly device, through which the inner side of the rim can share the force during the rim disassembly operation, disperse the pulling force, improve the stability of the force, facilitate the disassembly operation, and improve the work efficiency; at the same time, the breakage rate of the rim disassembly operation is reduced and the maintenance cost is reduced.

[0005] In order to solve this technical problem, the utility model adopts the following technical solutions:

[0006] A rim removal device comprises a main body drawing rod, a drawing screw rod is rotatably connected inside the main body drawing rod, and an operating torsion rod is fixed at the rear end of the drawing screw rod;

[0007] A drawing slide is threadedly connected to the drawing screw rod, and the drawing slide is slidably connected to the main drawing rod; the front part of the main drawing rod passes through the drawing slide, and a top pressure plate is fixed to the front end of the main drawing rod, and the top pressure plate is located on the front side of the drawing slide; the rear end of the drawing slide is rotatably connected to a number of drawing pries for buckling the rim side cover; a tightening screw is rotatably connected in the drawing slide, and the rear part of the tightening screw passes through the drawing screw, and the tightening screw is rotatably and slidably connected to the drawing screw; a tightening knob is fixed to the rear end of the tightening screw, and the tightening knob is located on the rear side of the operating torsion bar; a tightening mechanism for tightening the inner side of the rim is threadedly connected to the tightening screw, and the tightening mechanism is located on the front side of the pulling pry.

[0008] Preferably, the tightening mechanism includes two supporting slide rails respectively fixed on the left and right sides of the drawing slide, each supporting slide rail is slidably connected with a tightening slider, the outer ends of the two tightening sliders are respectively in contact with the inner side of the rim, and the rear side of each tightening slider is fixed with a connecting support; the tightening screw rod is threadedly connected with a transmission slide, and the transmission slide is slidably connected to the main pulling rod and the drawing slide; the left and right sides of the transmission slide are respectively rotatably connected with transmission connecting rods, and the front ends of the two transmission connecting rods are respectively rotatably connected with the corresponding connecting supports.

[0009] Further preferably, the drawing slide is perpendicular to the two supporting slide rails respectively, and the two supporting slide rails are bilaterally symmetrical and located on the same straight line.

[0010] Further preferably, the supporting slide rail comprises two parallel slideways, and the two sides of the tightening slider are slidably connected to the corresponding slideways respectively.

[0011] Further preferably, a sharing support block is fixed to the outer end of each of the tightening sliders, and the outer ends of the two sharing support blocks are in contact with two symmetrical points on the inner side of the rim respectively.

[0012] Further preferably, friction lines are provided on the surface of the sharing support block in contact with the rim.

[0013] Preferably, the rear end of the pulling slide is rotatably connected to the rear end of each pulling sled, and the front end of each pulling sled is inwardly bent.

[0014] The positive effects of the utility model are:

[0015] First, the utility model shares the force during rim disassembly by providing a tightening mechanism, disperses the pulling force, improves the stability of the force, enhances the convenience of disassembly work, and improves work efficiency; at the same time, it reduces the breakage rate of rim disassembly work and reduces maintenance costs.

[0016] Secondly, the utility model provides a pressure plate, which passes through the center of the rim and is pressed against the corresponding axle, thereby providing a fixed position for applying force for disassembling the rim, further improving work efficiency.

[0017] Third, the utility model provides a tightening knob to drive the tightening screw to rotate, so that the transmission slide moves relative to the drawing slide, so that the transmission connecting rod drives the tightening slider to slide relatively on the supporting slide rail, thereby achieving the tightening of the shared support block and the inner wall of the rim.

[0018] Fourthly, the utility model provides an operating torsion bar to drive the drawing screw rod to rotate, so that the drawing slide, the drawing pry and the internal tightening mechanism are all moved synchronously, thereby realizing the removal of the wheel rim from the axle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the rim of the utility model in the pulling state;

[0021] Figure 3 It is a schematic diagram of the structure of the pull-out slide and the pull-out pry of the utility model;

[0022] Figure 4 This is a schematic diagram of a half-section structure of the main pull rod of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the transmission connecting rod and the tightening slider of the utility model;

[0024] Figure 6 It is a structural schematic diagram of a tightening screw rod and a drawing screw rod of the utility model. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] like Figures 1 to 6 As shown, the utility model comprises a main body drawing rod 1, a drawing screw rod 2 is rotatably connected inside the main body drawing rod 1, and an operating torsion rod 3 is fixed to the rear end of the drawing screw rod 2.

[0027] The drawing rod 2 is threadedly connected with a drawing slide 5, and the inner side of the rear end of the drawing slide 5 is threadedly connected to the drawing rod 2. The front part of the main drawing rod 1 passes through the drawing slide 5, and the drawing slide 5 is slidably connected with the main drawing rod 1. The front end of the main drawing rod 1 is fixed with a disc-shaped top pressure plate 4, and the top pressure plate 4 is located on the front side of the drawing slide 5. By setting the top pressure plate 4, after passing through the center position of the rim and pressing against the corresponding axle, a fixed position for exerting force is provided for disassembling the rim, further improving work efficiency.

[0028] The rear end of the pull slide 5 is rotatably connected with four pull plies 6 arranged at equal intervals. The rear end outer side of the pull slide 5 is rotatably connected with the rear ends of each pull ply 6, and the front end of each pull ply 6 is bent inwardly for buckling the rim cover.

[0029] The tensioning screw 10 is rotatably connected in the drawing slide 5, and the drawing slide 5 moves synchronously with the tensioning screw 10. The rear portion of the tensioning screw 10 passes through the drawing screw 2, and the tensioning screw 10 is rotatably and slidably connected to the drawing screw 2. A tensioning knob 14 is fixed to the rear end of the tensioning screw 10, and the tensioning knob 14 is located at the rear side of the operating torsion bar 3.

[0030] The tightening screw rod 10 is threadedly connected with a tightening mechanism for tightening the inner side of the rim, and the tightening mechanism is located on the front side of the pulling pry 6. The tightening mechanism includes two hollow support rails 7 respectively fixed on the left and right sides of the pulling slide 5, and the pulling slide 5 is perpendicular to the two support rails 7, and the two support rails 7 are symmetrical and located on the same straight line. Each support rail 7 is slidably connected with a tightening slider 8, and each support rail 7 includes two parallel slideways, and the two sides of each tightening slider 8 are slidably connected with the corresponding slideways. The outer ends of each tightening slider 8 are respectively fixed with a sharing support block 9, and the outer ends of the two sharing support blocks 9 are respectively in contact with two symmetrical points on the inner side of the rim, and the surface of each sharing support block 9 in contact with the rim is provided with friction lines to increase the tightening force. The rear side of each tightening slider 8 is fixed with a connecting support 13. The tightening screw rod 10 is threadedly connected with a transmission slide 11, and the transmission slide 11 is slidably connected to the main drawing rod 1 and the drawing slide 5. The left and right sides of the transmission slide 11 are rotatably connected with transmission connecting rods 12, and the front ends of the two transmission connecting rods 12 are rotatably connected to the corresponding connecting supports 13. By setting up a tightening mechanism, the force during rim disassembly is shared, the pulling force is dispersed, the stability of the force is improved, the convenience of disassembly operation is improved, and the work efficiency is improved; at the same time, the breakage rate of rim disassembly operation is reduced, and the maintenance cost is reduced.

[0031] The rim disassembly device described in the utility model is used as follows:

[0032] First, pass the top pressure plate 4 through the center position of the rim and press it against the axle, and then buckle the front ends of all the pulling prys 6 on the side cover of the rim; then, rotate the tightening knob 14 to drive the tightening screw 10 to rotate, so that the transmission slide 11 moves forward relative to the pulling slide 5, so that the transmission connecting rod 12 drives the tightening slider 8 to slide outward on the supporting slide rail 7, so that the sharing support block 9 is tightened against the inner wall of the rim; finally, rotate the operating torsion bar 3 to drive the drawing screw 2 to rotate, so that the pulling slide 5, the pulling pry 6 and the tightening mechanism inside them all move backward synchronously (the main pulling rod 1 and the top pressure plate 4 do not move accordingly, providing a fixed position for the pulling force), thereby completing the rim disassembly operation.

Claims

1. A rim removal device, characterized in that: It comprises a main body drawing rod (1), a drawing screw rod (2) is rotatably connected inside the main body drawing rod (1), and an operating torsion rod (3) is fixed at the rear end of the drawing screw rod (2); The drawing screw rod (2) is threadedly connected with a drawing slide (5), and the drawing slide (5) is slidably connected to the main drawing rod (1); the front part of the main drawing rod (1) passes through the drawing slide (5), and the front end of the main drawing rod (1) is fixed with a top pressure plate (4), and the top pressure plate (4) is located on the front side of the drawing slide (5); the rear end of the drawing slide (5) is rotatably connected with a plurality of drawing pries (6) for buckling the rim cover; the drawing slide (5) is internally connected to the drawing slide (5). A tightening screw rod (10) is rotatably connected, and the rear part of the tightening screw rod (10) passes through the drawing screw rod (2). The tightening screw rod (10) is rotatably connected and slidably connected to the drawing screw rod (2); a tightening knob (14) is fixed to the rear end of the tightening screw rod (10), and the tightening knob (14) is located on the rear side of the operating torsion rod (3); a tightening mechanism for tightening the inner side of the rim is threadedly connected to the tightening screw rod (10), and the tightening mechanism is located on the front side of the drawing pry (6).

2. The rim removal device according to claim 1, characterized in that: The tightening mechanism comprises two supporting rails (7) respectively fixed on the left and right sides of the drawing slide (5), each supporting rail (7) is slidably connected with a tightening slider (8), the outer ends of the two tightening sliders (8) are respectively in contact with the inner side of the rim, and the rear side of each tightening slider (8) is fixed with a connecting support (13); the tightening screw rod (10) is threadedly connected with a transmission slide (11), and the transmission slide (11) is slidably connected to the main drawing rod (1) and the drawing slide (5); the left and right sides of the transmission slide (11) are respectively rotatably connected with transmission connecting rods (12), and the front ends of the two transmission connecting rods (12) are respectively rotatably connected to the corresponding connecting supports (13).

3. The rim removal device according to claim 2, characterized in that: The drawing slide cylinder (5) is perpendicular to the two supporting slide rails (7) respectively, and the two supporting slide rails (7) are symmetrical and located on the same straight line.

4. The rim removal device according to claim 2, characterized in that: The supporting slide rail (7) comprises two parallel slideways, and the two sides of the tightening slide block (8) are respectively slidably connected to the corresponding slideways.

5. The rim removal device according to claim 2, characterized in that: A sharing support block (9) is fixed to the outer end of each of the tightening sliders (8), and the outer ends of the two sharing support blocks (9) are in contact with two symmetrical points on the inner side of the wheel rim.

6. The rim removal device according to claim 5, characterized in that: The surface of the sharing support block (9) in contact with the wheel rim is provided with friction patterns.

7. The rim removal device according to any one of claims 1 to 6, characterized in that: The rear end of the pulling slide (5) is rotatably connected to the rear end of each pulling pry (6), and the front end of each pulling pry (6) is in an inwardly bent shape.

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