Variable position large horizontal tire changer

Abstract

The utility model discloses a horizontal tire dismounting machine for large tire is used for dismounting large diameter tire. The dismounting machine includes base, crossbeam slide, crossbeam sliding sleeve, tire dismounting subassembly and variable position tire clamping part, the variable position tire clamping part includes cantilever beam and cantilever beam slide sleeve and first drive part of forming motion pay, one side of cantilever beam is equipped with the slide groove of going out cantilever beam slide sleeve and the shift axle of axial opposite movement with cantilever beam slide sleeve, the support sliding column of forming motion pay and cross moving connecting part and second drive part are fixed on the base, the shift axle slide hole of cross moving connecting part is equipped with the shift axle sliding connection, the shift axle slide hole swing joint shift axle, when the cross moving connecting part goes up and down linear motion, drives the rotation corresponding angle of cantilever beam, still include synchronous rotation connecting part, when cantilever beam rotates, through synchronous rotation connecting part drive crossbeam slide synchronous rotation.

Description

Technical Field

[0001] This utility model relates to the field of automotive maintenance equipment technology, and in particular to a horizontal tire changer suitable for removing and installing large tires. Background Technology

[0002] Large vehicle tires have a larger diameter, making tire removal and installation relatively difficult. Generally, a larger tire changer is required to complete the tire removal and installation. Ordinary small vertical tire changers place the tire flat on the tire changer. If a large diameter tire is placed flat, the diameter of the tire changer's worktable must also be very large. This results in a large distance between the tire removal head and other components and the clamping components, making the tire changer very bulky. This structure and tire clamping method are not suitable for removing and installing large tires.

[0003] To meet the needs of changing large tires, horizontal tire changers are generally used. On August 14, 2020, the applicant published a patent application (CN111775640B) for a large horizontal tire changer that prevents inner tube damage. This machine features a tire clamping device at the end of a cantilevered support arm. This type of cantilevered horizontal tire changer is convenient for clamping tires and has a relatively compact overall structure. However, for some extra-large tires, especially those of large engineering vehicles, a longer support arm is required. An excessively long support arm can easily cause vibration during tire changing, and there is also a risk of deformation and bending. Furthermore, the range of tire diameters that this type of tire changer can handle is significantly limited.

[0004] Furthermore, due to the large diameter and weight of large tires, the greater rigidity of their bead, and the different rim structures and materials, different types of tire removal components are required. The currently used single tire removal arm cannot complete the quick and smooth tire removal and installation. In addition, the clamping process for large-diameter tires also presents problems such as difficulty in straightening the tire. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a large horizontal tire changer with a variable cantilever beam, good rigidity, and a wide range of applicable tire diameters; a further technical problem to be solved by this utility model is to provide a variable tire changer component and an auxiliary tire changer support component for the tire changer.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a variable-position large horizontal tire changer, comprising: a base; a crossbeam slide rail and a crossbeam sliding sleeve rotatably fixed on the base; a tire removal assembly fixed on the crossbeam sliding sleeve; and a variable-position tire clamping component disposed on the crossbeam slide rail and having a tire clamp at its end, the variable-position tire clamping component comprising a cantilever beam and a cantilever beam sliding sleeve forming a kinematic pair, and a first driving component for driving the cantilever beam sliding sleeve to move, wherein one side of the cantilever beam has a groove extending out of the cantilever beam sliding sleeve and is axially movable with the cantilever beam sliding sleeve. The system includes a relatively movable pivot shaft; a supporting sliding column and a cross-moving connecting component fixed on the base to form a kinematic pair; and a second driving component that drives the cross-moving connecting component to move. The cross-moving connecting component is provided with a pivot shaft sliding hole that is slidably connected to the pivot shaft. The pivot shaft sliding hole is movably connected to the pivot shaft. When the cross-moving connecting component moves up and down in a linear motion, it drives the cantilever beam to rotate by a corresponding angle. The system also includes a synchronous rotation connecting component that vertically and fixedly connects the cantilever beam and the crossbeam slide rail. When the cantilever beam rotates, it drives the crossbeam slide rail to rotate synchronously through the synchronous rotation connecting component.

[0007] In a preferred embodiment of the tire changing and mounting machine of this utility model, the supporting sliding column is arranged perpendicularly to the base.

[0008] In a preferred embodiment of the tire changing machine of this utility model, the cross sections of the cantilever beam, the cantilever beam sleeve, the supporting sliding column, and the cross-moving connecting component are all square.

[0009] In a preferred embodiment of the tire changer of this utility model, the dial shaft is a cylinder disposed in the middle of the opposite side of the cantilever beam and the cross-moving connecting component, and the slide groove is a long strip-shaped through groove in which the dial shaft can slide along the length direction of the cantilever beam slide sleeve.

[0010] In a preferred embodiment of the tire changing machine of this utility model, a shift fork is provided on the side of the cross-moving connecting component opposite to the cantilever beam sliding sleeve, and the shift fork is provided with the shift shaft sliding hole.

[0011] Furthermore, the sliding hole of the dial shaft is an elongated through hole.

[0012] In a preferred embodiment of the tire mounting and dismounting machine of this utility model, the synchronous rotation connecting component includes a first groove for fixing the crossbeam slide and a second groove perpendicular to the first groove for fixing the cantilever beam.

[0013] In a preferred embodiment of the tire changing machine of this utility model, a third driving component is further included, which is disposed on the synchronous rotation connecting component to drive the crossbeam sliding sleeve to move along the axis of the crossbeam slide rail, and a transverse trolley is fixed on the crossbeam sliding sleeve, and the tire changing assembly is disposed on the transverse trolley.

[0014] In a preferred embodiment of the tire changing machine of this utility model, the tire changing assembly is a first tire changing arm fixedly disposed at one end of the transverse trolley. The first tire changing arm includes a first outer sliding sleeve, a first inner sliding arm telescopically disposed in the first outer sliding sleeve, and a fifth driving component for driving the relative movement of the two. The outer end of the first inner sliding arm is provided with a tire changing roller and a tire changing hook.

[0015] In a preferred embodiment of the tire changing machine of this utility model, a rotating telescopic component is provided at the outer end of the first inner sliding arm. The tire hook is controlled to retract axially by locking pin one and to rotate by locking pin two.

[0016] In a preferred embodiment of the tire changer of this utility model, a second tire-removing arm is arranged parallel to the first tire-removing arm at one end of the transverse trolley and can move laterally along the length direction of the transverse trolley. The second tire-removing arm includes a second outer sliding sleeve, a second inner sliding arm telescopically disposed in the second outer sliding sleeve, and a sixth driving component for driving the relative movement of the two. The outer end of the second inner sliding arm is provided with a tire-removing pressure plate and a tire-removing tongue component. A fourth driving component is also provided to drive the transverse trolley to move laterally along its length direction. An upper sliding plate is provided between the second outer sliding sleeve and the transverse trolley, and the second outer sliding sleeve is fixed on the upper sliding plate.

[0017] In a preferred embodiment of the tire changing machine of this utility model, a locking pin three is provided at the front end of the second inner sliding arm to control the rotation of the tire changing pressure plate and the tire changing part.

[0018] In a preferred embodiment of the tire disassembly and assembly machine of this utility model, an auxiliary disassembly and assembly device is provided on the auxiliary slide rail on the base, which can move along the slide rail. The auxiliary disassembly and assembly device includes a tire support trolley at the bottom, a column arranged perpendicularly to the tire support trolley, and an auxiliary pressure roller assembly that can move up and down along the column. The auxiliary disassembly and assembly device is driven to move by a seventh drive component.

[0019] In a preferred embodiment of the tire changing and mounting machine of this utility model, the auxiliary pressure roller assembly includes two sets of auxiliary slides arranged parallel to the column, each set of auxiliary slides is provided with a set of auxiliary arms that can slide up and down, and each set of auxiliary arms is provided with an auxiliary pressure roller at one end. The column is provided with a locking groove for embedding the auxiliary arm, and each set of auxiliary arms is provided with a locking wheel at the end away from the auxiliary pressure roller to fix the auxiliary arm and the locking groove. A hook plate is provided between the two locking wheels.

[0020] Furthermore, the locking groove includes a first locking groove near the top of the column and a second locking groove away from the top of the column.

[0021] Compared with the prior art, this utility model of tire changer has the following advantages: It employs a cantilever beam and a cantilever beam sliding sleeve to form a variable-position cantilever beam structure. Simultaneously, it uses a cross-moving connecting component to connect the supporting sliding column and the movable connecting cantilever beam. This ensures sufficient support force is provided to the middle of the cantilever beam during the upward movement of the cross-moving connecting component, preventing vibration or even bending deformation of the tire-removing arm. During the upward movement of the cross-moving connecting component, the cantilever beam sliding sleeve can move freely along the cantilever beam, expanding the applicable range of tire diameters. The synchronous rotation connecting component connects the cantilever beam and the crossbeam slide, enabling the tire-removing assembly and the tire clamping assembly to rotate synchronously, resulting in a simple and reliable structure. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0023] Figure 1 This is a perspective view of the overall structure of a tire changer according to one embodiment of the present invention; Figure 2 yes Figure 1 Exploded view of the overall structure; Figure 3 This is a perspective view of the preferred variable-position tire clamping component structure of this utility model; Figure 4 is a perspective view of the connection structure between the cantilever beam sleeve and the tire clamp of the variable position tire clamping component. Figure 5 This is a perspective view of the preferred cross-moving connection component structure; Figure 6 This is a perspective view of the preferred synchronous rotation connection component structure; Figure 7 This is a perspective view of the cantilever beam after it is connected to the crossbeam slide rail via a synchronously rotating connecting component. Figure 8 is a perspective view of the preferred tire removal assembly structure; Figure 9 is Figure 8An exploded view of the tire removal assembly structure; Figure 10 This is a schematic diagram of one of the application scenarios of the first and second tire removal arms. Figure 11 This is a schematic diagram of the first and second tire removal arms, illustrating a second application scenario. Figure 12 This is a schematic diagram of the retracted tire hook of the first tire removal arm. Figure 13 This is a schematic diagram of the tire removal hook and telescopic shaft; Figure 14 This is a schematic diagram of the structure of the second outer sliding sleeve and the upper sliding plate; Figure 15 is a perspective schematic diagram of the preferred auxiliary dismantling and support device structure; Figure 16 This is a perspective view of the auxiliary dismantling and support device locking in the first locking groove structure; Figure 17 This is a perspective view of the auxiliary dismantling and support device locking in the second locking groove structure. Figure 18 This is a perspective diagram of the connection structure between the auxiliary arm and the auxiliary pressure roller.

[0024] The labels in the diagram represent: 1- Variable tire clamping component; 2- First tire removal arm; 3- Crossbeam slide rail; 4- Base; 5- Second tire removal arm; 6- Auxiliary tire removal device; 7- Power distribution and hydraulic pump station; 11- Cantilever beam; 12- Cantilever beam sleeve; 13- First drive component; 14- Tire clamp; 15- Support sliding column; 16- Cross-moving connection component; 17- Second drive component; 18- Synchronous rotation connection component; 20- First inner slide arm; 21- Tire removal roller; 22- Tire removal hook; 23- First outer slide sleeve; 24- Fifth drive component; 25- Locking pin one; 26- Locking pin two; 27- Rotary telescopic component; 31- Crossbeam slide sleeve; 32- Third drive component; 33- Lateral trolley; 34- Bearing assembly; 35- Shaft platform; 36- Fourth drive component; 41- Auxiliary trolley track; 50- Second inner slide arm; 51 - Tire removal pressure plate; 52 - Tire removal component with a bull's tongue; 53 - Second outer sliding sleeve; 54 - Sixth drive component; 55 - Locking pin three; 56 - Upper slide plate; 57 - Upper slide plate connecting part; 61 - Tire support trolley; 62 - Column; 63 - Auxiliary pressure roller assembly; 64 - Seventh drive component; 111 - Shaft; 121 - Slide groove; 161 - Shaft sliding hole; 162 - Shaft fork; 181 - First groove; 182 - Second groove; 251-Rotation positioning hole; 261-Positioning groove; 271-Telescopic cylinder; 272-Telescopic shaft; 273-Mounting hole; 311-Sliding sleeve connection part; 331-Transverse trolley track; 621-First locking groove; 622-Second locking groove; 631-Auxiliary pressure roller; 632-Auxiliary slide; 633-Auxiliary arm; 634-Hook plate; 635-Locking wheel; 636-Slide bushing; 637-Connecting angle. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] Please see Figure 1-7 As shown, this utility model embodiment provides a variable-position large horizontal tire changer. The changer includes a base 4, and the shaft platform 35 of the crossbeam slide 3 is rotatably fixed on the bearing seats on both sides of the base 4 through the bearing assembly 34. An electrical and hydraulic pump station 7 is arranged near the base 4.

[0027] In this embodiment, the tire clamping component 1 is disposed on the crossbeam slide rail. The variable-position tire clamping component 1 includes a cantilever beam 11 and a cantilever beam sleeve 12. A tire clamp is fixedly disposed at the front end of the cantilever beam sleeve 12. The cantilever beam 11 slides in the cantilever beam sleeve 12, forming a kinematic pair that can move axially relative to each other. One end of the first driving component 13 is connected to the cantilever beam sleeve 12, and the other end is connected to the synchronous rotation connecting component 18 to drive the cantilever beam sleeve 12 to move. The cantilever beam 11 and the cantilever beam sleeve 12 preferably have a square cross-sectional shape. A pivot 111 is provided on the side of the cantilever beam 11 opposite to the cross-moving connecting component 16. The pivot 111 may be a cylinder disposed in the middle of the cantilever beam 11. The cantilever beam sleeve 12 has a groove 121 on the same side as the cantilever beam 11. The groove 121 is an elongated through-groove along the length of the cantilever beam sleeve 12, and the pivot 111 can slide in the elongated through-groove. The supporting sliding column 15 is fixed on the base 4, and the cross-moving connecting component 16 is fitted outside the supporting sliding column 15 to form a kinematic pair with it. The second driving component 17 is connected to and drives the cross-moving connecting component 16 to move. In a preferred embodiment, the supporting sliding column 15 is arranged perpendicularly to the base 4, and the cross-section of both the supporting sliding column 15 and the cross-moving connecting component 16 can be square. A pivot fork 162 is provided on the side of the cross-moving connecting component 16 opposite to the cantilever beam sleeve 12, and a pivot sliding hole 161 is provided on the pivot fork 162. The pivot sliding hole 161 can be an elongated through-hole with a width of 140mm-160mm.

[0028] The pivot 111 of the cantilever beam 11 passes through the groove 121 of the cantilever beam sliding sleeve 12 and is slidably connected to the pivot sliding hole 161 of the cross-moving connecting component 16 on the opposite side. When the cross-moving connecting component 16 moves vertically, it can drive the cantilever beam 11 to rotate by a corresponding angle through the pivot sliding hole 161 and the pivot 111. The rotation angle is approximately 25º-30º upward from the surface of the base 4. The synchronous rotation connecting component 18 vertically and fixedly connects the cantilever beam 11 and the crossbeam slide 3. The synchronous rotation connecting component 18 includes a first slot 181 for fixing the crossbeam slide 3 and a second slot 182 perpendicular to the first slot 181 for fixing the cantilever beam 11. When the cantilever beam 11 rotates, it drives the crossbeam slide 3 to rotate synchronously through the synchronous rotation connecting component 18.

[0029] The cantilever beam 11 and the relatively movable cantilever beam sleeve 12 structure allow the length of the cantilever beam to be extended. The supporting sliding column 15 and the relatively movable cross-moving connecting component 16 structure allow the angle between the cantilever beam and the horizontal plane to change. The change in the length and angle of the cantilever beam can accommodate a wider range of tire diameter changes, i.e., it can be used for tires of various diameters. When the tire diameter is small, the total length of the cantilever beam and the cantilever beam sleeve can be shortened and a smaller angle can be used. When the tire diameter is large, the total length of the cantilever beam and the cantilever beam sleeve can be extended and a larger angle can be used. Thus, the change in the total length and angle of the cantilever beam and the cantilever beam sleeve enables the tire changer to change and install various tire diameter specifications. The structure employs a sliding connection between the supporting sliding column and the cross-moving connection, where the pivot of the cantilever beam passes through the groove of the cantilever beam sliding sleeve and slides through the pivot hole of the cross-moving connection component on the opposite side. The supporting sliding column provides reliable support for the cantilever beam, and the axial movement of the cantilever beam sliding sleeve will not interfere with the vertical movement of the cross-moving connection component. The angle and length of the cantilever beam can be adjusted simultaneously to ensure that the cantilever beam does not experience vibration or bend.

[0030] Please see Figure 8-14 As shown, in this embodiment, a crossbeam sliding sleeve 31 is provided on the outer periphery of the crossbeam slide rail 3, and both the crossbeam slide rail 3 and the crossbeam sliding sleeve 31 can have square cross-sections. One end of the third driving component 32 is disposed on the synchronous rotation connecting component 18 at the end of the crossbeam slide rail 3, and the other end is disposed on the sliding sleeve connecting portion 311 of the crossbeam sliding sleeve 31, used to drive the crossbeam sliding sleeve 31 to move along the axis of the crossbeam slide rail 3. A transverse trolley 33 is fixed on the crossbeam sliding sleeve 31. One or more sets of tire-removing assemblies can be provided on the crossbeam sliding sleeve 31. The tire-removing assemblies can be fixedly disposed on the transverse trolley 33 or movably disposed on the transverse trolley 33.

[0031] In this embodiment, a preferred embodiment is that two sets of tire removal components, a first tire removal arm 2 and a second tire removal arm 5, are arranged side by side on the transverse trolley 33. The first tire removal arm 2 is fixedly arranged at one end of the transverse trolley 33, and the second tire removal arm 5, which can move laterally along the length direction of the transverse trolley 33, is arranged side by side with the first tire removal arm 2 at the other end of the transverse trolley 33.

[0032] In this embodiment, the first tire-removing arm 2 includes a first outer sliding sleeve 23 and a first inner sliding arm 20 telescopically disposed within the first outer sliding sleeve 23. A fifth driving component 24 drives the first inner sliding arm 20 to move within the first outer sliding sleeve 23. A tire-removing roller 21 is provided at the outer end of the first inner sliding arm 20. A rotary telescopic component 27 is also provided near the tire-removing roller 21 at the outer end of the first inner sliding arm 20. The rotary telescopic component 27 includes a telescopic cylinder 271 and a telescopic shaft 272 with a central mounting hole 273. A tire-removing hook 22 is provided at the outer end of the telescopic shaft 272. The shaft end of the tire-removing hook 22 has a through-hole rotary positioning hole 251. A locking pin 25 for controlling the rotation of the tire-removing hook 22 is provided at the location where the telescopic shaft 272 mates with the shaft end of the tire-removing hook 22. After the tire-removing hook 22 is inserted into the mounting hole 273, its initial position is as follows: Figure 11 As shown, during installation, first pull the locking pin 25 upwards, then rotate the tire removal hook 22 so that the mounting hole 273 aligns with the locking pin 25, and finally lower the locking pin 25 so that its lower part enters the mounting hole 273 to lock it in place; if it is necessary for the tire removal hook 22 to be positioned as follows... Figure 10 In the tire removal working state shown, pull out the locking pin 25 again, rotate the tire removal hook 22 180º so that the other side of the mounting hole 273 is aligned with the locking pin 25, and put the locking pin 25 down so that it enters the mounting hole 273 and locks it. A locking pin 26 is provided on the telescopic cylinder 271 to control the axial extension and retraction of the tire removal hook 22. A positioning groove 261 is provided on the telescopic shaft 272. The locking pin 26 and the positioning groove 261 cooperate to control the extension length of the telescopic shaft 272. When the tire removal roller 21 is used, the tire removal hook 22 needs to be retracted to a position close to the telescopic cylinder 271. At this time, pulling up the locking pin 26 and pushing the telescopic shaft 272 into the telescopic cylinder 271 will retract the tire removal hook 22. If the tire removal hook 22 needs to be used, pulling up the locking pin 26 and pulling the telescopic shaft 272 outward will cause the locking pin 26 to fall into the positioning groove 261 when the positioning groove 261 reaches the position of the locking pin 26, and the tire removal hook 22 will be fixed in its working position.

[0033] In this embodiment, the second tire-removing arm 5 includes a second outer sliding sleeve 53, a second inner sliding arm 50 telescopically disposed within the second outer sliding sleeve 53, and a sixth driving component 54 for driving the relative movement of the two. The outer end of the second inner sliding arm 50 is provided with a tire-removing pressure plate 51 and a tire-removing tongue component 52. The fourth driving component 36 drives the second tire-removing arm 5 to move laterally along the length direction of the transverse trolley 33. An upper sliding plate 56 is provided between the second outer sliding sleeve 53 and the transverse trolley 33. The second outer sliding sleeve 53 is fixed to the upper sliding plate 56, and the upper sliding plate 56 moves on the transverse trolley track 331 of the transverse trolley 33. A locking pin 3 55 is provided at the front end of the second inner sliding arm 50 to control the rotation of the tire-removing pressure plate 51 and the tire-removing tongue component 52. Pulling up the locking pin 3 55 allows the tire-removing pressure plate 51 and the tire-removing tongue component 52 to be rotated and changed. After the change, lowering the locking pin 3 55 locks the position.

[0034] Depending on the specific circumstances, the combined variable-position tire removal device can be used to remove and install tires.

[0035] Application Scenario 1: Removal of large-diameter tires from aluminum alloy rims. The first tire removal arm 2 and the second tire removal arm 5 can be used together to complete the tire removal work. First, the tire is clamped on the tire clamp 14, the tire is rotated and the tire removal roller 21 of the first tire removal arm 2 is used to loosen the tire bead. Then, the tire removal hook 22 is inserted into the tire bead and the tire is rotated to pull the tire bead out of the rim. Next, the tire removal pressure plate 51 of the second tire removal arm 5 is inserted into the tire bead on the other side and the tire is rotated. Finally, the tire removal pressure plate 51 of the second tire removal arm 5 inserted into the tire bead on one side of the tire pushes the tire, and the tire removal hook 22 of the first tire removal arm 2 inserted into the tire bead on the other side of the tire pulls the tire. Together, they remove the tire from the rim.

[0036] Application Scenario 2: For a medium-diameter tire with a steel rim, the tire removal work can be completed by using the first tire removal arm 2 alone. First, the tire is clamped on the tire clamp 14, the tire is rotated and the tire removal roller 21 of the first tire removal arm 2 is used to loosen the tire bead. Then, the tire removal hook 22 is inserted into the tire bead to remove the rim retainer ring. After that, the tire is rotated to pull the tire bead out of the rim. Finally, the tire is removed from the rim by pulling the tire removal hook 22.

[0037] Application Scenario 3: For a large-diameter tire with a steel rim and retaining ring, the first tire removal arm 2 and the second tire removal arm 5 can be used together to remove the tire. First, move the second tire removal arm 5 close to the first tire removal arm 5 and clamp the tire. Rotate the tire removal tab 52 toward the tire. Then, insert the tire removal tab 52 into the tire bead, rotate the tire, remove the rim retaining ring, and pull the tire bead out of the rim. Next, move the second tire removal arm 5 to the other side of the tire, insert the tire removal pressure plate 51 into the tire bead on the other side of the tire, and rotate the tire. Finally, use the tire removal pressure plate 51 inserted into the tire bead on one side of the tire with the second tire removal arm 5 to push the tire, and use the tire removal hook 22 inserted into the tire bead on the other side of the tire with the first tire removal arm 2 to pull the tire. Together, they remove the tire from the rim.

[0038] In addition, the tire-removing roller 21 of the first tire-removing arm can also be used in combination with the auxiliary pressure roller 631 of the auxiliary tire-removing device 6 for tire loading operations (see description below).

[0039] Of course, for tires with smaller diameters, tire removal roller 21, tire removal hook 22, tire removal pressure plate 51 or tire removal tool 52 can be used for removal and installation.

[0040] Please see Figure 15-18 As shown, in this embodiment, an auxiliary lifting and stabilizing device 6 is provided on the auxiliary slide rail 41 on the base 4, which can move along the track. It is used to assist in moving, clamping, and straightening the tire during the clamping or removal of large tires. The auxiliary lifting and stabilizing device 6 includes a tire-supporting trolley 61 at the bottom. The bottom surface of the tire-supporting trolley 61 is provided with a slide rail that slides in cooperation with the auxiliary slide rail 41. A column 62 is vertically arranged on the tire-supporting trolley 61. An auxiliary pressure roller assembly 63 that can move up and down along the column 62 is arranged on the column 62. A seventh driving component 42 that drives the auxiliary lifting and stabilizing device 6 to move on the base 4 is arranged below the tire-supporting trolley 61.

[0041] The auxiliary pressure roller assembly 63 includes two sets of auxiliary slides 632 arranged parallel to the column 62. Each set of auxiliary slides 632 is provided with an auxiliary arm 633. A slide sleeve 636 is provided on the side of the auxiliary arm 633 near the column 62. The auxiliary slide 632 passes through the slide sleeve 636 and is connected to it, allowing the auxiliary pressure roller assembly 63 to slide up and down along the auxiliary slide 632. The auxiliary arm 633 can be connected to the auxiliary pressure roller assembly 63 through a right-angle connecting angle 637 on the side away from the column 62. Each set of auxiliary arms 633 is provided with an auxiliary pressure roller 631 at one end. The column 62 is provided with a locking groove into which the auxiliary arm 633 can be embedded. The locking groove includes a first locking groove 621 near the top of the column 62 and a second locking groove 622 away from the top of the column 62. Each set of auxiliary arms 633 has a locking wheel 635 at one end away from the auxiliary pressure roller 631, which fixes the auxiliary arm 633 and the locking groove. A locking wheel hook plate 634 is provided between the two locking wheels 635.

[0042] When performing tire removal and installation operations, if the auxiliary pressure roller assembly 63 is not locked in the second locking groove 622, firstly, loosen the two locking wheels 635 to separate the hook plate 634 from one locking wheel. Then, move the auxiliary arm 633 into the second locking groove 622. Finally, adjust the hook plate 634 and tighten the two locking wheels 635 to lock the auxiliary pressure roller assembly 63 in the second locking groove 622. If the auxiliary pressure roller assembly 63 is not locked in the first locking groove 621 during tire support operations, the corresponding steps can be performed to lock the auxiliary pressure roller assembly 63 in the first locking groove 621.

[0043] When removing or installing large-diameter tires, first place the tire on the tire support trolley 61 of the auxiliary removal device 6. For tires with a diameter exceeding 3500mm, the auxiliary pressure roller assembly 63 should be locked in the second locking groove 622. For tires with a diameter smaller than the above, the auxiliary pressure roller assembly 63 can be locked in the first locking groove 621. The auxiliary removal device can maintain the stability of the tire during movement and clamping.

[0044] When installing tires, because some large tires, especially the steel wires in the tire bead, are relatively hard, a single tire removal roller may not be able to press the tire bead into the rim ring smoothly. Two auxiliary pressure rollers 631 can be used in conjunction with the tire removal roller 21 to form three roller pressure points, which can easily install the tire. At this time, the locking groove of the auxiliary removal device needs to be determined according to the size of the tire.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A variable-position large horizontal tire changer, comprising: Base (4); A crossbeam slide (3) and a crossbeam sliding sleeve (31) are rotatably fixed on the base (4). Tire removal assembly fixed to the sliding sleeve (31) of the crossbeam; and A variable-position tire clamping component (1) is installed on the crossbeam slide (3) and has a tire clamp at its end. The variable-position tire clamping component (1) is characterized in that it includes a cantilever beam (11) and a cantilever beam sleeve (12) forming a kinematic pair, and a first driving component (13) for driving the cantilever beam sleeve (12) to move. The cantilever beam (11) has a groove (121) extending through the cantilever beam sleeve (12) on one side, and a pivot (111) that can move axially relative to the cantilever beam sleeve (12). A support sliding column (15) and a cross-moving connecting component (16) are fixed on the base (4) to form a kinematic pair, and a second driving component (17) for driving the cross-moving connecting component (16) to move. The cross-moving connecting component (16) has a pivot sliding hole (161) that is slidably connected to the pivot (111). The pivot sliding hole (161) is movably connected to the pivot (111). When the cross-moving connecting component (16) moves vertically, it drives the cantilever beam (11) to rotate by a corresponding angle. It also includes... The synchronous rotation connecting component (18) vertically and fixedly connects the cantilever beam (11) and the crossbeam slide (3). When the cantilever beam (11) rotates, it drives the crossbeam slide (3) to rotate synchronously through the synchronous rotation connecting component (18).

2. The variable-position large horizontal tire changer according to claim 1, characterized in that, The supporting sliding column (15) is perpendicular to the base (4).

3. The variable position large horizontal tire changer of claim 2, wherein, The cross-sections of the cantilever beam (11), the cantilever beam sleeve (12), the support sliding column (15), and the cross-moving connecting component (16) are all square.

4. The variable position large horizontal tire changer of claim 3, wherein, The pivot (111) is a cylinder located in the middle of the opposite side of the cantilever beam (11) and the cross-moving connecting component (16), and the slide groove (121) is a long strip-shaped through groove along the length direction of the cantilever beam slide sleeve (12) in which the pivot (111) can slide.

5. The variable position large horizontal tire changer of claim 4, wherein, A fork (162) is provided on the side of the cross-moving connecting component (16) opposite to the cantilever beam sleeve (12), and a sliding hole (161) of the fork (162) is provided on the fork (162).

6. The variable position large horizontal tire changer of claim 5, wherein, The sliding hole (161) of the dial shaft is an elongated through hole.

7. The variable position large horizontal tire changer according to any one of claims 2 to 6, characterized in that, The synchronous rotation connecting component (18) includes a first slot (181) for fixing the crossbeam slide (3) and a second slot (182) perpendicular to the first slot (181) for fixing the cantilever beam (11).

8. The variable position large horizontal tire changer of claim 7, wherein, It also includes a third drive component (32) disposed on the synchronous rotation connection component (18) to drive the crossbeam sliding sleeve (31) to move along the axis of the crossbeam slide (3), a transverse trolley (33) fixed on the crossbeam sliding sleeve (31), and the tire removal assembly disposed on the transverse trolley (33).

9. The variable position large horizontal tire changer of claim 8, wherein, The tire removal assembly is a first tire removal arm (2) fixedly installed at one end of the transverse trolley (33). The first tire removal arm (2) includes a first outer sliding sleeve (23), a first inner sliding arm (20) telescopically installed in the first outer sliding sleeve (23), and a fifth driving component (24) for driving the relative movement of the two. The outer end of the first inner sliding arm (20) is provided with a tire removal roller (21) and a tire removal hook (22).

10. The variable-position large horizontal tire changer according to claim 9, characterized in that, A rotating telescopic component (27) is also provided at the outer end of the first inner sliding arm (20). The tire removal hook (22) is controlled to retract axially by locking pin one (25), and the tire removal hook (22) is controlled to rotate by locking pin two (26).

11. The variable-position large horizontal tire changer according to claim 10, characterized in that, A second tire-removing arm (5) is arranged parallel to the first tire-removing arm (2) at one end of the transverse trolley (33) and can move laterally along the length direction of the transverse trolley (33). The second tire-removing arm (5) includes a second outer sliding sleeve (53), a second inner sliding arm (50) telescopically arranged in the second outer sliding sleeve (53), and a sixth driving component (54) for driving the relative movement of the two. The outer end of the second inner sliding arm (50) is provided with a tire-removing pressure plate (51) and a tire-removing tongue component (52). A fourth driving component (36) is also provided to drive the transverse trolley (33) to move laterally along its length direction. An upper sliding plate (56) is provided between the second outer sliding sleeve (53) and the transverse trolley (33). The second outer sliding sleeve (53) is fixed on the upper sliding plate (56).

12. The variable position large horizontal tire changer of claim 11, wherein, The front end of the second inner sliding arm (50) is provided with a locking pin three (55) for controlling the rotation of the tire-removing pressure plate (51) and the tire-removing tongue component (52).

13. The variable position large horizontal tire changer of claim 12, wherein, An auxiliary support device (6) is provided on the auxiliary slide (632) on the base (4) and can move along it. The auxiliary support device (6) includes a tire support trolley (61) at the bottom, a column (62) arranged vertically to the tire support trolley (61), and an auxiliary pressure roller assembly (63) that can move up and down along the column (62). The auxiliary support device (6) is driven to move by the seventh drive component (42).

14. The variable position large horizontal tire changer of claim 13, wherein, The auxiliary pressure roller assembly (63) includes two sets of auxiliary slides (632) arranged parallel to the column (62), each set of auxiliary slides (632) is provided with a set of auxiliary arms (633) that can slide up and down, and each set of auxiliary arms (633) is provided with an auxiliary pressure roller (631) at one end. The column (62) is provided with a locking groove for embedding the auxiliary arm (633). Each set of auxiliary arms (633) is provided with a locking wheel (635) at the end away from the auxiliary pressure roller (631) to fix the auxiliary arm (633) and the locking groove. A hook plate (634) is provided between the two locking wheels (635).

15. The variable position large horizontal tire changer of claim 14, wherein, The locking groove includes a first locking groove (621) near the top of the column (62) and a second locking groove (622) away from the top of the column (62).

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