An auxiliary tool for hydraulic tire changing

Abstract

This utility model discloses an auxiliary tooling for hydraulic tire removal. The tooling includes a crossbeam and legs. The crossbeam is rotatably mounted on a leveling base plate, and the legs are mounted on the base plate, with the crossbeam abutting against the legs. A roller assembly is slidably connected to the crossbeam, and a hydraulic cylinder is connected to the roller assembly. The hydraulic cylinder is connected to a tire-mounting frame via a hydraulic push rod. The tire and rim are placed under the tire-mounting frame, and the frame is driven to move downwards to press down on the tire, separating the tire from the rim's pressure ring. The tire and rim are then flipped onto a tire-releasing base, and the tire-mounting frame is driven to move downwards again to press down on the tire, separating it from the rim. This auxiliary tooling for hydraulic tire removal reduces the difficulty of tire repair and disassembly, improves tire disassembly efficiency, and because its tire-releasing base and tire-mounting frame are replaceable and adjustable, it can be customized for the tire sizes of large lifting and transport vehicles, and has better compatibility and adaptability for the repair of marine engineering vehicles.

Description

Technical Field

[0001] This utility model belongs to the field of marine oil engineering technology, and in particular relates to an auxiliary tooling for hydraulic tire removal. Background Technology

[0002] Heavy marine engineering equipment has special tire sizes and operates in complex environments. Tires on construction cranes and transport flatbed trucks are prone to punctures. Traditionally, manual tire removal is necessary because the tires often stick to the rims after prolonged use. Each tire removal operation requires 3 to 4 people simultaneously placing angle irons between the tire and the rim, striking with a sledgehammer until a gap appears, and then using a crowbar to pry out the pressure ring. The tire then has to be flipped over and squeezed off the rim again with angle irons and a sledgehammer. This process is time-consuming, labor-intensive, and reduces the efficiency of the machinery.

[0003] The existing methods for tire removal are as follows:

[0004] The first step is to lay the tire flat on the ground and place 5-6 pieces of 10mm x 10mm angle iron at the junction of the tire and the rim. 4-5 people should use a hammer to evenly tap the tire to separate it from the rim and create a certain gap.

[0005] The second step is to use a long pry bar to align with the opening of the insert ring, creating a gap between the insert ring and the wheel hub. Then, use another pry bar to pry out part of the insert ring. Pry the pry bar back and forth to remove the insert ring.

[0006] The third step is to turn the tire inside out and remove it from the rim using the same method as the first step.

[0007] The disadvantages of the above method are: First, the tires are large and heavy, requiring a lot of manpower. Second, due to the long-term engagement between the tire and the rim, the rim rusts, making it difficult to separate the tire and the rim, resulting in a huge workload for repair workers. Finally, when removing the pressure ring, its high elasticity makes it difficult to pry with a pry bar, making the operation difficult for construction workers.

[0008] Therefore, there is an urgent need to design an auxiliary tool for hydraulic tire changing to solve the problems mentioned above. Utility Model Content

[0009] To address the technical problems mentioned in the background art, such as tires and rims being engaged for extended periods, rims rusting, making tire-rim separation difficult and resulting in a heavy workload for repair workers; and the high elasticity of the tire rim, making it difficult to pry with a pry bar and hindering operation by construction personnel, this invention provides an auxiliary tool for hydraulic tire removal to solve the problem of removing tires from rims.

[0010] To achieve the above objectives, the specific technical solution of the auxiliary tooling for hydraulic tire changing of this utility model is as follows:

[0011] An auxiliary tooling for hydraulic tire removal includes a crossbeam and legs. The crossbeam is rotatably mounted on a leveling base plate, and the legs are mounted on the leveling base plate. The crossbeam is abutted against the legs, and a roller assembly is slidably connected to the crossbeam. A hydraulic cylinder is connected to the roller assembly, and the hydraulic cylinder is connected to a tire-mounting frame via a hydraulic push rod. The tire and rim are placed under the tire-mounting frame, and the tire-mounting frame is driven to move downward to press down on the tire, thereby separating the tire from the rim's pressure ring. The tire and rim are then flipped over and placed on a tire-releasing base, and the tire-mounting frame is driven to move downward again to press down on the tire, thereby separating the tire from the rim.

[0012] Furthermore, the crossbeam includes a first connecting arm and a second connecting arm. The first connecting arm is vertically connected to the leveling base plate, and the end of the first connecting arm away from the leveling base plate is connected to the second connecting arm via a pivot, so that the second connecting arm can rotate around the first connecting arm.

[0013] Furthermore, the support leg is vertically connected to the leveling base plate, and the end of the support leg away from the leveling base plate abuts against the second connecting arm. The second connecting arm and the support leg are respectively provided with through holes, and a thrust bearing is connected in the through hole so that the second connecting arm is fixedly connected to the support leg.

[0014] Furthermore, a roller assembly is slidably connected along the length of the second connecting arm, and a hydraulic cylinder is vertically connected to the roller assembly so that the hydraulic cylinder slides along the second connecting arm.

[0015] Furthermore, a handle is attached to the roller assembly, which can be pulled to slide the roller assembly.

[0016] Furthermore, the hydraulic cylinder is connected to the center of the top tire frame via a hydraulic push rod, so that the top tire frame can move in the vertical direction.

[0017] Furthermore, the hydraulic cylinder is connected to the hydraulic pump station via hydraulic pipelines, and the hydraulic pump station is mounted on the leveling base plate to drive the hydraulic push rod to move.

[0018] Furthermore, the tire release base abuts against the leveling base plate, and the end of the tire release base away from the leveling base plate abuts against the wheel hub.

[0019] Furthermore, a hub cross plate is connected to the top tire frame. The hub cross plate is inserted into the fixing hole of the hub, and the hydraulic push rod rises to lift the hub.

[0020] Furthermore, the top tire frame is cylindrical in shape, and the wheel hub crossbar is connected inside the top tire frame.

[0021] The auxiliary tooling for hydraulic tire changing of this utility model has the following advantages:

[0022] The main structure is formed by rotating the crossbeam mounted on the leveling base plate and the support legs spaced apart on the leveling base plate. A hydraulic cylinder drives the top tire frame to move up and down, thereby separating the tire from the rim. This application reduces the difficulty of tire repair and disassembly, and improves tire removal efficiency. Because its tire mounting base and top tire frame are replaceable and adjustable, it can be customized for the tire sizes of large lifting and transport vehicles. It also has better compatibility and adaptability for the repair of marine engineering vehicles. Using tooling instead of traditional hammering methods effectively protects the rim and tire. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the auxiliary tooling for the hydraulic tire changing of this utility model.

[0024] Explanation of markings in the diagram:

[0025] 1. Crossbeam; 101. First connecting arm; 102. Second connecting arm; 2. Frame leg; 3. Leveling base plate; 4. Roller assembly; 5. Hydraulic cylinder body; 6. Hydraulic push rod; 7. Tire top frame; 8. Tire; 9. Wheel hub; 10. Tire release base; 11. Thrust bearing; 12. Handle; 13. Hydraulic pipeline; 14. Hydraulic pump station; 15. Wheel hub cross plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0028] The following is a reference to the appendix. Figure 1 This invention describes the auxiliary tooling for hydraulic tire changing.

[0029] like Figure 1As shown, the auxiliary tooling for hydraulic tire removal in this utility model includes a crossbeam 1 and a support leg 2. The crossbeam 1 is rotatably mounted on a leveling base plate 3. The support leg 2 is mounted on the leveling base plate 3 and abuts against the crossbeam 1. A roller assembly 4 is slidably connected to the crossbeam 1. A hydraulic cylinder 5 is connected to the roller assembly 4. The hydraulic cylinder 5 is connected to a tire-mounting frame 7 via a hydraulic push rod 6. The tire 8 and rim 9 are placed under the tire-mounting frame 7. The tire-mounting frame 7 is driven to move downwards to press down on the tire 8, so that the tire 8 is separated from the rim 9. The tire 8 and rim 9 are flipped over and placed on the tire-releasing base 10. The tire-mounting frame 7 is driven to move downwards again to press down on the tire 8, so that the tire 8 is separated from the rim 9.

[0030] The main structure is formed by rotating the crossbeam 1 mounted on the leveling base plate 3 and the support legs 2 spaced apart on the leveling base plate 3. The top tire frame 7 is driven up and down by the hydraulic cylinder 5, thereby separating the tire 8 from the wheel hub 9. This application reduces the difficulty of tire 8 maintenance and disassembly, and improves the efficiency of tire 8 disassembly. Because its tire mounting base 10 and top tire frame 7 are replaceable and adjustable, they can be customized for the tire size of large lifting and transport vehicles. It has better matching and adaptability for the maintenance of marine engineering vehicles. The use of tooling instead of traditional hammering can effectively protect the wheel hub and tire.

[0031] Furthermore, such as Figure 1 As shown, the crossbeam 1 includes a first connecting arm 101 and a second connecting arm 102. The first connecting arm 101 is vertically connected to the leveling base plate 3. The end of the first connecting arm 101 away from the leveling base plate 3 is connected to the second connecting arm 102 through a pivot, so that the second connecting arm 102 can rotate around the first connecting arm 101. The support leg 2 is vertically connected to the leveling base plate 3. The end of the support leg 2 away from the leveling base plate 3 abuts against the second connecting arm 102. The second connecting arm 102 and the support leg 2 are respectively provided with through holes. A thrust bearing 11 is connected in the through hole so that the second connecting arm 102 is fixedly connected to the support leg 2.

[0032] In this embodiment, preferably, the crossbeam 1 is composed of a first connecting arm 101 and a second connecting arm 102. The first connecting arm 101 is vertically welded to the leveling base plate 3. The end of the first connecting arm 101 away from the leveling base plate 3 is provided with a rotating shaft. The second connecting arm 102 is connected to the rotating shaft so that the second connecting arm 102 can rotate horizontally.

[0033] A support leg 2 is vertically welded onto the leveling base plate 3. The support leg 2 is spaced apart from the first connecting arm 101, so that the end of the second connecting arm 102 away from the first connecting arm 101 abuts against the support leg 2. Both the second connecting arm 102 and the support leg 2 are provided with through holes. When the second connecting arm 102 is rotated so that the second connecting arm 102 abuts against the support leg 2, the through holes of the second connecting arm 102 and the support leg 2 are connected through the thrust bearing 11, thereby fixing the second connecting arm 102 to the support leg 2.

[0034] Furthermore, such as Figure 1 As shown, a roller assembly 4 is slidably connected along the length of the second connecting arm 102, and a hydraulic cylinder 5 is vertically connected to the roller assembly 4 so that the hydraulic cylinder 5 slides along the second connecting arm 102; a handle 12 is connected to the roller assembly 4, and the roller assembly 4 slides by pulling the handle 12; the hydraulic cylinder 5 is connected to the center of the top tire frame 7 through a hydraulic push rod 6 so that the top tire frame 7 moves in the vertical direction; the hydraulic cylinder 5 is connected to the hydraulic pump station 14 through a hydraulic pipeline 13, and the hydraulic pump station 14 is set on the leveling base plate 3 to drive the hydraulic push rod 6 to move.

[0035] In this embodiment, a roller assembly 4 is provided on the second connecting arm 102. Preferably, the second connecting arm 102 is a hollow structure so that the roller assembly 4 slides along the hollow structure of the second connecting arm 102.

[0036] A hydraulic cylinder 5 is connected to the roller assembly 4. The hydraulic cylinder 5 is fixedly connected to the roller assembly 4 in a vertical direction. The roller assembly 4 is connected to a handle 12. Pulling the handle 12 causes the hydraulic cylinder 5 to move within the hollow structure of the second connecting arm 102.

[0037] Preferably, the hydraulic cylinder 5 is detachably connected to the center of the top tire frame 7 via a hydraulic push rod 6, that is, the size of the top tire frame 7 can be changed according to different sizes of tires 8 and rims 9, and the hydraulic push rod 6 can drive the top tire frame 7 to move in the vertical direction; the power of the hydraulic cylinder 5 is provided by the hydraulic pump station 14, and the hydraulic cylinder 5 is connected to the hydraulic pump station 14 via a hydraulic line 13, thereby driving the hydraulic push rod 6 to move.

[0038] Furthermore, such as Figure 1 As shown, the tire-releasing base 10 abuts against the leveling base plate 3, and the end of the tire-releasing base 10 away from the leveling base plate 3 abuts against the wheel hub 9; the top tire frame 7 is connected to the wheel hub cross plate 15, which is inserted into the fixing hole of the wheel hub 9, and the hydraulic push rod 6 rises to lift the wheel hub 9; the top tire frame 7 is cylindrical in shape, and the wheel hub cross plate 15 is connected inside the top tire frame 7.

[0039] In this embodiment, preferably, a hub plate 15 is connected to the top tire frame 7. When the hub plate 15 is not in use, it can be fixed in the fixing hole inside the top tire frame 7.

[0040] The working principle of the hydraulic tire-changing auxiliary tooling in this utility model is as follows:

[0041] First, the first connecting arm 101 is vertically welded to the leveling base plate 3, the hydraulic pump station 14 is powered on, and the top tire frame 7 is installed according to the wheel hub size of the tire model to be repaired.

[0042] Then, rotate the second connecting arm 102 so that it rotates above the support leg 2 and is fixed by the thrust bearing 11;

[0043] Then, place the tire 8 to be repaired at the designated point, and then use the handle 12 to position the hydraulic push rod 6 to the center of the wheel hub 9;

[0044] Then, operate the hydraulic pump station 14 to make the hydraulic push rod 6 drive the top tire frame 7 downward. After aligning it with the tire 8, operate the hydraulic pump station 14 to make the hydraulic push rod 6 continue to descend. During operation, observe the downward movement of the top tire frame 7 and the tire 8, and observe the pressure changes of the hydraulic pump station 14 to prevent damage to the tire 8.

[0045] Then, when the tire 8 has descended about 10 centimeters and the top tire frame 7 has stopped descending, align the pressure ring bracket, place it 15cm away from one side of the pressure ring opening and support it on the pressure ring, adjust and fix the fixing screws, put the 10-ton hydraulic jack into the bracket, and close the return oil valve of the hand pump.

[0046] Then, operate the hand pump and observe the jack's ejection. Make sure there is no deviation. Use the hydraulic pressure of the jack to pull the open side of the pressure ring out of the hub. When the pressure ring is out to a certain position, release the pressure of the jack and move the pressure ring removal bracket backward along the edge of the pressure ring. Repeat the above actions to remove the pressure ring from the hub in three steps.

[0047] Then, lift the top tire frame 7, move the hydraulic cylinder to one side, and remove the pressure ring;

[0048] Then, tire 8 flipped over in place;

[0049] Then, drive the hydraulic push rod 6 downwards. After the top tire frame 7 is attached to the tire 8, stop the downward movement, lower the wheel hub cross plate 15 and hang it in the fixing hole of the wheel hub 9. Then, operate the hydraulic push rod 6 upwards to lift the tire 8 to the highest position.

[0050] Then, place the tire release base 10 under the tire 8, operate the hydraulic push rod 6 to move it down, and place the wheel hub 9 on the tire release base 10;

[0051] Then, operate the hydraulic push rod 6 to continue downward. After the top tire frame 7 is attached to the tire 8, use the valve wrench to pry the valve position straight.

[0052] Then, continue to operate the hydraulic push rod 6 downwards and observe the downward movement of the hydraulic push rod 6 to press the tire 8 down onto the wheel hub 9;

[0053] Finally, push the second connecting arm 102 aside, remove the tire 8 and wheel hub 9, and the tire removal operation is complete.

[0054] Based on the auxiliary tooling for hydraulic tire removal, this utility model forms the main structure by rotating the second connecting arm 102 mounted on the leveling base plate 3 and the support legs 2 spaced apart on the leveling base plate 3. The top tire frame 7 is driven up and down by the hydraulic cylinder 5, thereby separating the tire 8 from the wheel hub 9. This application reduces the difficulty of tire 8 maintenance and disassembly, and improves the efficiency of tire 8 disassembly. Because its tire release base 10 and top tire frame 7 are replaceable and adjustable, they can be customized for the tire sizes of large lifting and transport vehicles, and have better matching and adaptability for the maintenance of marine engineering vehicles. Using tooling instead of the traditional hammering method can effectively protect the wheel hub 9 and tire 8.

[0055] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An auxiliary tool for hydraulic tire changing, characterized in that, It includes a crossbeam and legs. The crossbeam is rotatably mounted on a leveling base plate. The leveling base plate is equipped with legs, which abut against the crossbeam. A roller assembly is slidably connected to the crossbeam. A hydraulic cylinder is connected to the roller assembly. The hydraulic cylinder is connected to a top tire frame through a hydraulic push rod. The tire and rim are placed under the top tire frame, and the top tire frame is driven to move downward to press down on the tire, so that the tire is separated from the rim's pressure ring. The tire and rim are flipped over and placed on the tire release base. The top tire frame is then driven to move downwards again to press down on the tire, thus separating the tire from the rim.

2. The hydraulic tire changing aid of claim 1, wherein, The crossbeam includes a first connecting arm and a second connecting arm. The first connecting arm is vertically connected to the leveling base plate. The end of the first connecting arm away from the leveling base plate is connected to the second connecting arm via a pivot, so that the second connecting arm can rotate around the first connecting arm.

3. The hydraulic tire changing aid of claim 1, wherein, The support leg is vertically connected to the leveling base plate. The end of the support leg away from the leveling base plate abuts against the second connecting arm. Corresponding through holes are opened on the second connecting arm and the support leg. A thrust bearing is connected in the through hole so that the second connecting arm is fixedly connected to the support leg.

4. The hydraulic tire changing aid of claim 2, wherein, A roller assembly is slidably connected along the length of the second connecting arm, and a hydraulic cylinder is vertically connected to the roller assembly so that the hydraulic cylinder slides along the second connecting arm.

5. The hydraulic tire changing aid of claim 4, wherein, A handle is attached to the roller assembly, and the roller assembly is slid by pulling the handle.

6. The hydraulic tire changing aid of claim 4, wherein, The hydraulic cylinder is connected to the center of the top tire frame via a hydraulic push rod, so that the top tire frame can move vertically.

7. The hydraulic tire changing aid of claim 1, wherein, The hydraulic cylinder is connected to the hydraulic pump station via hydraulic lines. The hydraulic pump station is mounted on the leveling base plate to drive the hydraulic push rod to move.

8. The hydraulic tire changing aid of claim 1, wherein, The tire release base rests against the leveling base plate, and the end of the tire release base away from the leveling base plate rests against the wheel hub.

9. The hydraulic tire changing aid of claim 1, wherein, A wheel hub cross plate is connected to the top tire frame. The wheel hub cross plate is inserted into the fixing hole of the wheel hub, and the hydraulic push rod rises to lift the wheel hub.

10. The hydraulic tire changing aid of claim 9, wherein, The top tire frame is cylindrical in shape, and the wheel hub crossbar is connected inside the top tire frame.

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