A tire dismantling machine

Abstract

The present invention discloses a tire disassembly and assembly machine, including a machine body, wherein the machine body is provided with a single-column double-sliding body structure, a column and a working turntable, the single-column double-sliding body structure includes an upper tire disassembly and assembly assembly and a lower tire disassembly and assembly assembly, and the upper tire disassembly and assembly assembly and the lower tire disassembly and assembly assembly can respectively adjust their positions on the column; the upper tire disassembly and assembly assembly includes a tire mounting head, and the tire mounting head includes a first roller, a second roller, a connecting portion and a docking portion, and when the tire mounting head is used to install the tire, friction resistance can be reduced, which facilitates the installation of the tire while avoiding wear on the tire lip and the wheel rim; the lower tire disassembly and assembly assembly includes a lower tire disassembly and assembly tool, and the lower tire disassembly and assembly tool includes a lower tire disassembly and assembly pressure roller and a lower tire mounting straight column, and the lower tire mounting straight column and the lower tire disassembly and assembly pressure roller are an integrated structure and can be switched according to the needs of tire disassembly and assembly, simplifying the structure of the tire disassembly and assembly machine while ensuring normal use, and reducing the volume of the tire disassembly and assembly machine.

Description

Technical Field

[0001] The present invention relates to the technical field of tire installation, in particular to a tire disassembly and assembly machine. Background Art

[0002] Tire changers are commonly used for installing and removing tires in automotive tire repair. They can replace tires on a variety of vehicles, including cars, heavy trucks, and motorcycles. A tire changer consists of a tire support assembly, which locks and rotates the wheel rim, and a tire changer assembly, which removes or installs the tire from or onto the rim.

[0003] When the tire is being disassembled and installed, the tire disassembly and assembly machine needs to adjust and determine the position between the disassembly and assembly component and the wheel. When the disassembly and assembly component is working, it will rub against the tire and the rim to smoothly disassemble and install the tire. In the prior art, when disassembling and installing the tire, the disassembly and assembly component of the disassembly and assembly machine is not flexible enough to use, and it is not convenient to adjust the position between the disassembly and assembly component and the wheel. Moreover, the friction with the tire and the rim can easily cause wear of the tire and the rim. Summary of the Invention

[0004] The present invention provides a tire disassembly and assembly machine, which overcomes the problem that the position relationship between the tire and the tire cannot be flexibly adjusted during disassembly and assembly, and the tire and the wheel rim are easily worn.

[0005] In order to achieve the above object, the technical solution of the present invention is:

[0006] A tire disassembly machine includes a body, wherein the body is provided with a single-column double-slide structure, a column, and a working turntable, wherein the single-column double-slide structure includes an upper tire disassembly assembly and a lower tire disassembly assembly, wherein the upper tire disassembly assembly and the lower tire disassembly assembly are vertically mounted on the column;

[0007] The upper tire mounting and dismounting assembly comprises a tire mounting head, an upper tire mounting and dismounting cross arm and an upper tire mounting and dismounting sliding assembly;

[0008] The tire mounting head comprises a first roller, a second roller, a connecting portion and a docking portion, one end of the connecting portion is sleeved with the first roller; the docking portion comprises a connecting rod and an upper tire mounting column; one end of the connecting portion is connected to one end of the connecting rod, the other end of the connecting rod is connected to the upper tire mounting column, and the connecting rod is sleeved with the second roller; the first roller and the second roller are axially perpendicularly arranged; one end of the upper tire mounting and dismounting cross arm is connected to the connecting portion, and the other end is connected to the upper tire mounting and dismounting sliding assembly, and the upper tire mounting and dismounting sliding assembly is slidably connected to the column; when the tire is mounted, the wheel is placed on the work turntable, the first roller abuts against the sidewall of the tire, the second roller abuts against the rim of the wheel, and the upper tire mounting column extends between the tire bead and the rim of the wheel;

[0009] The lower tire disassembly assembly includes a lower tire disassembly tool, a lower tire disassembly cross arm and a lower tire disassembly sliding assembly;

[0010] The lower tire disassembly and installation tool includes a lower tire disassembly and installation pressure roller and a lower tire disassembly and installation column; the lower tire disassembly and installation pressure roller and the lower tire disassembly and installation column are arranged on the same side end of the lower tire disassembly and installation cross arm, and the other end of the lower tire disassembly and installation cross arm is connected to the lower tire disassembly and installation sliding assembly, and the lower tire disassembly and installation sliding assembly is slidably connected to the column; when disassembling the tire, the lower tire disassembly and installation pressure roller abuts against the sidewall of the tire, and when installing the tire, the lower tire disassembly and installation column extends between the tire bead and the wheel rim.

[0011] Furthermore, it also includes a power-assisting device, which includes a large arm, a placenta supporting plate, a pressure head and a small arm; one end of the large arm is pivotally connected to the upper tire disassembly and installation sliding assembly, and the other end of the large arm is pivotally connected to the small arm, and the large arm and the small arm can both swing on a plane perpendicular to the sliding direction of the upper tire disassembly and installation sliding assembly, the placenta supporting plate is installed at the pivotal connection between the large arm and the small arm, and the pressure head is installed at the end of the small arm away from one end of the large arm.

[0012] Furthermore, the docking portion also includes a pressure block, the end face of which is an arc surface. The pressure block is arranged on one side of the upper tire mounting column and is connected to the connecting rod. When the first roller abuts against the sidewall of the tire, the pressure block abuts against the tire lip.

[0013] Furthermore, the upper tire assembly further comprises an upper tire assembly cross arm support, the upper tire assembly cross arm support is fixedly connected to the upper tire assembly sliding assembly; the upper tire assembly cross arm support is provided with a prismatic upper mounting hole, the upper tire assembly cross arm is slidably connected to the upper tire assembly cross arm support through the upper mounting hole;

[0014] The lower tire disassembly assembly also includes a lower tire disassembly arm support, which is fixedly connected to the lower tire disassembly arm sliding assembly; the lower tire disassembly arm support is provided with a prismatic lower mounting hole, and the lower tire disassembly arm is slidably connected to the lower tire disassembly arm support through the lower mounting hole.

[0015] Furthermore, the upper tire disassembly cross arm and the lower tire disassembly cross arm are prisms, the outer side wall of the upper tire disassembly cross arm is provided with a scale line, and the lower tire disassembly cross arm is provided with an adjustment section, the cross-sectional shape of the adjustment section is circular, and the circle is the inscribed circle of the lower mounting hole, and the adjustment section can rotate in the lower mounting hole to make the lower tire column in the working position or the non-working position

[0016] Furthermore, the machine body is provided with a first driving device and a second driving device, the first driving device drives the upper tire disassembly and installation sliding assembly to slide up and down along the column, and the second driving device drives the lower tire disassembly and installation sliding assembly to slide up and down along the column.

[0017] Furthermore, the docking portion further includes a supporting portion, one end of the connecting rod is provided with the supporting portion, the diameter of the supporting portion is larger than the diameter of the connecting rod, and the supporting portion is provided with the upper tire column and the pressure block.

[0018] Beneficial effects: The present invention provides a single-column and double-slide rail structure on the tire disassembly and assembly machine, so that the upper tire disassembly and assembly assembly and the lower tire disassembly and assembly assembly can adjust their positions on the columns respectively, reducing the number of position adjustment operations when disassembling and assembling the tire, and facilitating the staff to flexibly manipulate the corresponding tire disassembly and assembly assembly to perform tire disassembly and assembly work; by providing a tire mounting head including a first roller, a second roller, a connecting portion and a docking portion, when the tire mounting head docks the tire bead and the wheel rim, the friction resistance is reduced, and the tire is conveniently installed while avoiding wear on the tire bead and the wheel rim; by integrating the lower tire mounting column and the lower tire disassembly and assembly pressure roller into an integrated structure, the lower tire mounting column and the lower tire disassembly and assembly pressure roller can be switched according to usage requirements. Under the premise of ensuring normal use, the structure of the tire disassembly and assembly machine is simplified and the volume of the tire disassembly and assembly machine is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 This is a schematic diagram of a single-column and double-slide structure of a tire changer of the present invention;

[0021] Figure 2 This is a structural schematic diagram of a tire dismantling machine according to the present invention;

[0022] Figure 3 This is a three-dimensional schematic diagram of a single-column and double-slide tire changer of the present invention;

[0023] Figure 4 This is a structural schematic diagram of a tire mounting head and an upper tire mounting and dismounting cross arm in a tire dismounting and mounting machine of the present invention;

[0024] Figure 5 for Figure 4 The main view;

[0025] Figure 6 for Figure 5Cross-sectional view at AA in the middle;

[0026] Figure 7 Schematic diagram of the structure of the docking portion of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the upper tire assembly of the present invention;

[0028] Figure 9 This is a schematic structural diagram of the upper tire disassembly and assembly cross arm support in the present invention;

[0029] Figure 10 This is a schematic structural diagram of the lower tire disassembly assembly of the present invention;

[0030] Figure 11 for Figure 10 Enlarged view of the middle FF;

[0031] Figure 12 This is a schematic structural diagram of the lower tire disassembly and assembly cross arm support in the present invention;

[0032] Figure 13 It is a structural schematic diagram of the lower tire disassembly and assembly cross arm in the present invention.

[0033] In the picture:

[0034] 1. Single column and double slide structure;

[0035] 2. Pillar;

[0036] 3. Working turntable;

[0037] 4. Upper tire assembly; 41. Tire mounting head; 411. First roller; 412. Second roller; 413. Connecting portion; 413a. Baffle; 414. Docking portion; 415. Connecting rod; 416. Upper tire mounting post; 417. Pressure block; 418. Supporting portion; 419. Gasket; 42. Upper tire mounting cross arm; 421. Fixing portion; 43. Upper tire mounting sliding assembly; 44. Upper tire mounting cross arm support; 441. Upper mounting hole; 442. Upper support ear plate; 45. Upper tire mounting reinforcement plate; 46. First support; 47. First connecting plate;

[0038] 5. Lower tire assembly; 51. Lower tire assembly tool; 511. Lower tire pressure roller; 512. Lower tire column; 512a. Bending rod; 512b. Lower column; 52. Lower tire cross arm; 521. Adjustment section; 522. Lower pressure roller mounting shaft; 53. Lower tire sliding assembly; 54. Lower tire cross arm support; 541. Lower mounting hole; 542. Lower support ear plate; 55. Lower tire reinforcement plate; 56. Second support; 57. Second connecting plate.

[0039] 6. Power assist device; 61. Upper arm; 62. Placenta support; 63. Pressure head; 64. Lower arm;

[0040] 7. First driving device;

[0041] 8. Second driving device. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0043] This embodiment provides a tire disassembly and assembly machine. Figures 1 to 3 As shown, the machine body is provided with a single-column double-slide structure 1, a column 2, and a working turntable 3. The single-column double-slide structure 1 includes an upper tire disassembly assembly 4 and a lower tire disassembly assembly 5, which are vertically mounted on the column 2. The upper tire disassembly assembly 4 includes a tire mounting head 41, an upper tire disassembly cross arm 42, and an upper tire disassembly sliding assembly 43.

[0044] The tire loading head 41 includes a first roller 411, a second roller 412, a connecting portion 413 and a docking portion 414. One end of the connecting portion 413 is sleeved with the first roller 411; the docking portion 414 includes a connecting rod 415 and an upper tire loading column 416. One end of the connecting portion 413 is connected to one end of the connecting rod 415, and the other end of the connecting rod 415 is connected to the upper tire loading column 416. The connecting rod 415 is sleeved with the second roller 412; the first roller 4 11 is arranged axially perpendicular to the second roller 412; one end of the upper tire mounting and dismounting cross arm 42 is connected to the connecting portion 413, and the other end is connected to the upper tire mounting and dismounting sliding assembly 43, and the upper tire mounting and dismounting sliding assembly 43 is slidably connected to the column 2; when installing the tire, the wheel is placed on the working turntable 3, when the first roller 411 abuts against the sidewall of the tire, the second roller 412 abuts against the rim of the wheel, and the upper tire mounting column 416 extends between the tire bead and the wheel rim;

[0045] The lower tire disassembly assembly 5 includes a lower tire disassembly tool 51, a lower tire disassembly cross arm 52 and a lower tire disassembly sliding assembly 53. The lower tire disassembly tool 51 includes a lower tire disassembly roller 511 and a lower tire column 512.

[0046] The lower tire pressure roller 511 and the lower tire column 512 are arranged at the same end of the lower tire disassembly and installation cross arm 46, and the other end of the lower tire disassembly and installation cross arm 46 is connected to the lower tire disassembly and installation sliding assembly 47, and the lower tire disassembly and installation sliding assembly 47 is slidingly connected to the column 2; when disassembling the tire, the lower tire pressure roller 511 abuts against the tire bead, and when installing the tire, the lower tire column 512 penetrates between the tire bead and the wheel rim.

[0047] Specifically, if Figure 1 As shown, a single-column double-sliding body structure 1 is provided on the column 2, wherein the upper tire disassembly and installation assembly 4 and the lower tire disassembly and installation assembly 5 can slide along the column 2, and are slidably connected to the column 2 through the upper tire disassembly and installation sliding assembly 43, thereby driving the upper tire disassembly and installation cross arm support 44 fixedly connected to the upper tire disassembly and installation sliding assembly 43 to slide along the column 2, and then driving the upper tire disassembly and installation cross arm 42 slidably connected to the upper tire disassembly and installation cross arm support 44 to slide along the column 2, so that the tire mounting head 41 installed at one end of the upper tire disassembly and installation cross arm 42 can independently adjust its position on the column 2; the lower tire disassembly and installation sliding assembly 53 is slidably connected to the column 2, thereby driving the upper tire disassembly and installation cross arm support 44 to slide along the column 2. The lower tire disassembly and installation cross arm support 54 fixedly connected to 53 slides along the column 2, driving the lower tire disassembly and installation cross arm 52 slidably connected to the lower tire disassembly and installation cross arm support 53 to slide along the column 2, so that the lower tire disassembly and installation tool 51 installed at one end of the lower tire disassembly and installation cross arm 52 can adjust its position on the column independently, reducing the number of machine adjustment operations when disassembling and installing the tire and improving the efficiency of tire disassembly and installation; in actual application, the upper tire disassembly and installation sliding assembly 43 and the lower tire disassembly and installation sliding assembly 53 are provided with square holes matching the column 2, and the upper tire disassembly and installation sliding assembly 43 and the lower tire disassembly and installation sliding assembly 53 are sleeved on the column 2 through the square holes and can slide up and down along the column.

[0048] Specifically, if Figures 4 to 6As shown, the connecting portion 413 is connected to the tire disassembly and assembly machine through the upper tire disassembly and assembly cross arm 42, the end of the upper tire disassembly and assembly cross arm 42 is provided with an external thread, and the end of the connecting portion 413 that is sleeved with the first roller 411 is provided with a threaded hole, and the connecting portion 413 is connected to the upper tire disassembly and assembly cross arm 42 through a threaded connection; the end of the connecting portion 413 away from the first roller 411 is provided with a through hole, the axis of the through hole is perpendicular to the axis of the threaded hole, and the connecting rod 415 includes a threaded section and a smooth section, the smooth section is sleeved with the second roller 412, the diameter of the smooth section is larger than the diameter of the through hole, the diameter of the threaded section matches the through hole, and the threaded section passes through the through hole and is connected to the connecting rod through a nut. The first roller 411 and the second roller 412 are fixedly connected by the part 413, and the docking part 414 is fixed by the cooperation of the nut, the threaded section and the smooth section. The first roller 411 which is coaxial with the upper tire disassembly and installation cross arm 42 and the second roller 412 which is axially perpendicular to the upper tire disassembly and installation cross arm 42 are connected as a whole through the connecting part 413 to ensure that the relative positions of each component cooperate to complete the tire installation work. According to the positional relationship between the tire and the rim, in order to ensure that the second roller 412 can be accurately positioned to the rim when the first roller 411 abuts against the sidewall, it is necessary to keep the bottom surfaces of the first roller 411 and the second roller 412 at the same horizontal height to prevent the bottom surface of the first roller 411 from exceeding the second roller 412, resulting in the second roller 412 being unable to be positioned to the position of the rim after the first roller 411 is positioned.

[0049] Specifically, if Figure 7 As shown, a gasket 419 is provided on the end face of the upper tire mounting column 416 away from the pressing block 417. When the tire is mounted, the upper tire mounting column 416 contacts the wheel rim. The gasket 419 is provided on the end face of the upper tire mounting column 416. In this embodiment, the gasket 419 is made of rubber. The contact between the gasket 419 and the wheel rim can prevent the upper tire mounting column 416 from wearing the wheel rim.

[0050] Specifically, if Figure 10 and Figure 11 As shown, in this embodiment, the lower tire mounting column 512 and the lower tire dismounting pressure roller 511 are integrated into an integral structure, which simplifies the structure of the tire dismounting machine and reduces the size of the tire dismounting machine while ensuring normal use.

[0051] Specifically, if Figure 10As shown, the lower tire pressure roller 511 is rotatably connected to the end of the lower tire pressure roller 511 and the lower tire column 512 is fixed to the lower tire pressure roller 52 and provided with one end of the lower tire pressure roller 511; in this embodiment, the end of the lower tire pressure roller 52 is provided with a lower pressure roller mounting shaft 522, and the lower tire pressure roller 511 is sleeved on the lower pressure roller mounting shaft 522, and the lower tire pressure roller 511 can rotate on the lower pressure roller mounting shaft 522; the end of the lower pressure roller mounting shaft 522 is provided with a threaded hole, and the operator installs the bolt in the threaded hole, and the bolt head acts as a barrier to prevent the lower tire pressure roller 511 from falling off from the lower pressure roller mounting shaft 522 during rotation.

[0052] Specifically, if Figure 11 As shown, the lower tire mounting column 512 includes a bending rod 512a and a lower column 512b. The lower column 512b can be inserted between the tire bead and the wheel rim. One end of the bending rod 512a is fixed on the outer surface of one end of the lower tire mounting and disassembling cross arm 52 provided with the lower tire mounting and disassembling pressure roller 511, and the other end of the bending rod 512a is vertically fixed with the lower column 512b. The bending rod 512a prevents the lower tire mounting column 512 from contacting the lower tire mounting and disassembling pressure roller 511, thereby avoiding interference between the lower tire mounting column 512 and the lower tire mounting and disassembling pressure roller 511. In this embodiment, the bending rod 512a is fixed to the lower tire mounting and disassembling cross arm 52 by welding, and the bending rod 512a and the lower column 512b are formed as one piece.

[0053] Specifically, in actual operation, the tire is fixed on the working turntable 3 of the machine body, and the upper tire disassembly and installation cross arm 42 and the lower tire disassembly and installation cross arm 52 point to the center of the working turntable 3 (i.e., the center of the tire);

[0054] The working process of the tire changing machine in this embodiment is as follows:

[0055] When the tire is disassembled, the tire disassembly hook on the tire disassembly machine disassembles the upper bead, and the lower bead of the tire is stuck on the upper wheel rim. The lower tire disassembly roller 511 in the initial state is aligned with the lower end of the wheel rim. At this time, the lower tire disassembly column 512 is in the non-working position (the lower tire disassembly column 512 is not vertically upward). The operator pulls the lower tire disassembly cross arm 52 to make it slide on the lower tire disassembly cross arm support 54 until the end face of the lower tire disassembly roller 511 abuts the edge of the wheel rim. At this time, the operator controls the telescopic end of the second driving device 8 to extend and retract, driving the lower tire disassembly sliding assembly 53 to slide along the column 2, and the lower tire disassembly roller 511 cooperates with the rotating work turntable 3 to lift the tire, separate the tire from the wheel rim, and complete the disassembly of the lower bead. After the lower bead is disassembled, the lower tire disassembly assembly 5 can be reset to its initial state alone.

[0056] When installing the lower tire lip, the lower tire mounting roller 511 is initially aligned with the lower end of the wheel rim. At this time, the lower tire mounting column 512 is in a non-working position (the lower tire mounting column 512 is not vertically upward at this time). The operator pulls the lower tire mounting cross arm 52 to make it slide on the lower tire mounting cross arm support 54 until the adjustment section 521 slides to the lower mounting hole 541. The operator rotates the lower tire mounting cross arm 52 to make the lower tire mounting column 512 in a working position (the lower tire mounting column 512 is vertically upward at this time). After the lower tire mounting post 512 is adjusted to the working position, the operator pulls the lower tire mounting and dismounting cross arm 52 again until the end surface of the lower tire mounting and dismounting roller 511 abuts against the edge of the wheel rim. At this time, the operator controls the telescopic end of the second driving device 8 to extend and retract, and the lower tire mounting post 512 penetrates between the wheel rim and the lower bead of the tire. The lower tire mounting post 512 cooperates with the rotating working turntable 3 to install the lower bead of the tire into the wheel rim, completing the installation of the lower bead. After the lower bead is installed, the lower tire mounting and dismounting assembly 5 can be reset to its initial state separately.

[0057] When installing the upper tire lip, the operator pulls the upper tire disassembly and installation cross arm 42 to make it slide on the upper tire disassembly and installation cross arm support 44. At the same time, the telescopic end of the first drive device 7 is extended and retracted until the first roller 411 abuts against the upper sidewall of the tire and the second roller 412 abuts against the upper tire lip of the tire. At this time, the upper tire installation column 416 penetrates between the upper tire lip and the wheel rim. Since the upper side of the tire is deformed after being compressed (the deformed part will be tilted upward), it is necessary to adjust the position of the rotating arm 64 to adjust the position of the pressure head 63 so that the pressure head 63 presses the deformed and tilted part of the upper side of the tire to ensure that the tire installation head 41 can work smoothly. The position of the tire installation head 41 is fixed and unchanged, and cooperates with the rotating work turntable 3 to install the lower tire lip into the wheel rim to complete the installation of the upper tire lip. By setting the first roller 411 to roll in contact with the sidewall of the tire, the frictional resistance between the tire loading head 41 and the sidewall of the tire can be reduced, thereby avoiding wear on the sidewall of the tire; since the connecting rod 415 and the wheel rim are both made of metal, the friction between the wheel rim and the connecting rod 415 during rotation can easily cause wear on the wheel rim, and the connecting rod 415 may also be worn and broken. Therefore, by arranging the second roller 412 outside the connecting rod 415, damage to the wheel rim can be avoided.

[0058] The power-assisting device 6 includes a large arm 61, a placenta support 62, a pressure head 63 and a small arm 64;

[0059] Specifically, if Figure 3As shown, one end of the upper arm 61 is pivotally connected to the upper tire disassembly and installation sliding assembly 43, and the other end of the upper arm 61 is pivotally connected to a small arm 64. The upper arm 61 and the small arm 64 can both swing on a plane perpendicular to the sliding direction of the upper tire disassembly and installation sliding assembly 43, and the placenta plate 62 is installed at the pivot point of the upper arm 61 and the small arm 64, and the pressure head 63 is installed at the end of the small arm 64 away from one end of the upper arm 61. Through the cooperation of the upper arm 61 and the small arm 64, the pressure head 63 and the placenta plate 62 can be moved to the corresponding position of the tire to assist in disassembling and installing the tire, which is more time-saving and labor-saving; when installing the upper bead of the tire, the pressure head 63 can press the sidewall of the tire and cooperate with the tire installation head 41 to realize the installation of the upper side of the tire; when disassembling a large-size tire, the tire removal hook hooks the upper bead of the tire, and the placenta plate 62 is responsible for supporting the lower side of the tire, assisting the tire removal hook to lift the tire to separate the tire from the rim.

[0060] The docking portion 414 also includes a pressure block 417, the end face of which is an arc surface. The pressure block 417 is arranged on one side of the upper tire mounting column 416 and is connected to the connecting rod 415. When the first roller 411 abuts against the sidewall of the tire, the pressure block 417 abuts against the bead of the tire.

[0061] Specifically, if Figure 7 As shown, a pressure block 417 is provided at the end of connecting rod 415. Pressure block 417 has a circular arc surface that abuts the tire sidewall, preventing wear on the tire sidewall during the tire's rotation and installation process. Pressure block 417 can be connected to the end of connecting rod 415 by welding, or by providing a threaded hole at the end of pressure block 417 and corresponding external threads on connecting rod 415, thereby securing pressure block 417 and connecting rod 415 via threads. In this embodiment, preferably, pressure block 417 and connecting rod 415 are an integrally welded structure.

[0062] The upper tire disassembly and installation assembly 4 also includes the upper tire disassembly and installation cross arm support 44, and the upper tire disassembly and installation cross arm support 44 is fixedly connected to the upper tire disassembly and installation sliding assembly 43; the upper tire disassembly and installation cross arm support 44 is provided with a prismatic upper mounting hole 441, and the upper tire disassembly and installation cross arm 42 is slidably connected to the upper tire disassembly and installation cross arm support 44 through the upper mounting hole 441; the lower tire disassembly and installation assembly 5 also includes a lower tire disassembly and installation cross arm support 54, and the lower tire disassembly and installation cross arm support 54 is fixedly connected to the lower tire disassembly and installation sliding assembly 53; the lower tire disassembly and installation cross arm support 54 is provided with a prismatic lower mounting hole 541, and the lower tire disassembly and installation cross arm 52 is slidably connected to the lower tire disassembly and installation cross arm support 54 through the lower mounting hole 541.

[0063] The upper tire disassembly and installation cross arm 42 and the lower tire disassembly and installation cross arm 52 are prisms, and the outer side wall of the upper tire disassembly and installation cross arm 42 is provided with scale lines. The lower tire disassembly and installation cross arm 52 is provided with an adjustment section 521. The cross-sectional shape of the adjustment section 521 is circular, and the circle is the inscribed circle of the lower mounting hole 541. The adjustment section 521 can rotate in the lower mounting hole 541 to make the lower tire mounting column 512 be in a working position or a non-working position.

[0064] Specifically, if Figure 4 As shown, in this embodiment, the upper tire disassembly and installation cross arm 42 is a prism, and the tire mounting head is connected to the tire disassembly and installation machine through the upper tire disassembly and installation cross arm 42. The outer wall of the upper tire disassembly and installation cross arm 42 is provided with scale lines. When changing tires of different models, the upper tire disassembly and installation cross arm 42 is stretched to the corresponding scale position so that the tire mounting head 41 matches and docks with the tire, saving debugging time; the upper tire disassembly and installation cross arm 42 is provided with a fixing part 421, and the fixing part 421 is radially provided with a threaded hole. The operator tightens the screw in the threaded hole of the fixing part 421 The bolt is used to press the outer surface of the upper tire disassembly and installation cross arm 42 so that the fixing portion 421 is fixed on the upper tire disassembly and installation cross arm 42. The outer wall of one end of the connecting portion 413, which is provided with the first roller 411, is provided with a baffle 413a. The first roller 411 is arranged between the fixing portion 421 and the baffle 413a, ensuring that the position of the first roller 411 is limited between the fixing portion 421 and the baffle 413a when it can rotate, limiting the axial movement range of the first roller 411 to ensure that the tire installation process proceeds smoothly.

[0065] Specifically, if Figure 9 As shown, the upper tire mounting cross arm support 54 is provided with a prismatic upper mounting hole 441, and the upper tire mounting cross arm 42 is slidably connected to the upper tire mounting cross arm support 44 through the upper mounting hole 441; the prismatic upper tire mounting cross arm 42 and the upper mounting hole 441 can prevent the upper tire mounting cross arm 42 from rotating in the upper mounting hole 441 of the upper tire mounting cross arm support 44, ensuring that the upper tire mounting column 416 can maintain its working position.

[0066] Specifically, if Figure 12 As shown, the lower mounting hole 541 is prismatic, as shown in FIG. Figure 13 As shown, the lower tire mounting cross arm 52 is a prism corresponding to the lower mounting hole 541; the prismatic lower tire mounting cross arm 52 and the lower mounting hole 541 can prevent the lower tire mounting cross arm 52 (the portion other than the adjustment section 521) from rotating within the lower mounting hole 541 of the lower tire mounting cross arm support 54, thereby ensuring that the lower tire mounting column 512 can maintain a working position or a non-working position;

[0067] Preferably, in this embodiment, the prism shape is a regular hexagonal prism, and the prism body is a regular hexagonal prism body, which has good compressive resistance.

[0068] Specifically, if Figure 9 As shown, the upper tire mounting and disassembling cross arm support 44 includes a plurality of upper support lugs 442 arranged parallel to each other, and the upper mounting holes 441 are arranged on the upper support lugs 442; Figure 12 As shown, the lower tire disassembly and installation cross arm support 54 includes a plurality of lower support lugs 542 arranged in parallel with each other, the lower mounting holes 541 are provided on the lower support lugs 542, and the lower tire disassembly and installation cross arm 52 is provided with a plurality of adjustment sections 521 corresponding to the number and spacing of the lower support lugs 542. Specifically, as shown in FIG. Figure 13 As shown, the cross-sectional shape of the adjustment section 521 is circular, and the circle is the inscribed circle of the lower mounting hole 541. The adjustment section 521 can rotate in the lower mounting hole 541. The operator slides the adjustment section 521 of the lower tire disassembly and installation cross arm 52 to the lower mounting hole 541 and rotates it to place the lower tire installation column 512 in the working position or the non-working position. A plurality of mutually parallel support ear plates are provided to firmly support the cross arm. At the same time, the mounting holes provided on the plurality of mutually parallel support ear plates can guide the sliding of the cross arm to a certain extent, thereby ensuring that the cross arm can slide smoothly.

[0069] Specifically, if Figure 8 As shown, the upper tire assembly 4 in this embodiment further includes an upper tire reinforcement plate 45, and the upper tire cross arm support 44 and the upper tire sliding assembly 43 are fixedly connected via the upper tire reinforcement plate 45 to improve the connection strength between the upper tire cross arm support 44 and the upper tire sliding assembly 43;

[0070] like Figure 10 As shown, the lower tire disassembly assembly 5 also includes a lower tire disassembly reinforcement plate 55, and the lower tire disassembly arm support 54 and the lower tire disassembly sliding assembly 53 are fixedly connected through the lower tire disassembly reinforcement plate 55 to improve the connection strength between the lower tire disassembly arm support 54 and the lower tire disassembly sliding assembly 53.

[0071] The machine body is further provided with a first driving device 7 and a second driving device 8 . The first driving device 7 drives the upper tire disassembly and installation sliding assembly 43 to move up and down along the column 2 , and the second driving device 8 drives the lower tire disassembly and installation sliding assembly 53 to move up and down along the column 2 .

[0072] Specifically, if Figure 2 and Figure 3 As shown, by providing two drive devices to independently control the upper tire assembly 4 and the lower tire assembly 5 to perform tire installation and removal, the tire installation and removal process is made more flexible and convenient. In this embodiment, the first drive device 7 is an upper tire installation cylinder, the stroke direction of which is parallel to the length direction of the column 2, and the second drive device 8 is a lower tire installation cylinder, the stroke direction of which is parallel to the length direction of the column 2.

[0073] The upper tire disassembly assembly 4 further includes a first support 46, on which the fixed end of the upper tire disassembly cylinder is mounted via a threaded fastener, and the first support 46 is mounted on the bottom of the machine body;

[0074] The lower tire disassembly assembly 5 further includes a second support 56, on which the fixed end of the lower tire disassembly cylinder is mounted via a threaded fastener, and the second support 56 is mounted on the top of the machine body;

[0075] Specifically, the column 2 is a rectangular structure (including upper and lower bottom surfaces and four side surfaces), and the lower tire disassembly reinforcement plate 55 is close to two side surfaces of the column 2. In this embodiment, in order to avoid interference, the upper tire disassembly cylinder and the lower tire disassembly cylinder are respectively close to the other two side surfaces of the column 2.

[0076] In this embodiment, Figure 8 As shown, the upper tire mounting assembly 4 further includes a first connecting plate 47. Two parallel first connecting plates 47 are fixed to the upper tire mounting sliding assembly 43. The first connecting plates 47 are provided with through holes, through which the operator assembles the telescopic end of the upper tire mounting cylinder with the first connecting plates 47.

[0077] like Figure 10 As shown, the lower tire disassembly assembly 5 also includes a second connecting plate 57. Two parallel second connecting plates 57 are fixed on the lower tire disassembly sliding assembly 53. The second connecting plates 57 are provided with through holes. The operator assembles the telescopic end of the lower tire disassembly cylinder with the second connecting plate 57 through the through holes.

[0078] The docking portion 414 further includes a supporting portion 418 . The supporting portion 418 is provided at one end of the connecting rod 415 . The diameter of the supporting portion 418 is larger than that of the connecting rod 415 . The supporting portion 418 is provided with the tire mounting post 416 and the pressure block 417 .

[0079] Specifically, a supporting portion 418 is provided between the upper tire mounting post 416, the pressure block 417, and the connecting rod 415. The provision of the supporting portion 418 increases the stability of the connection between the upper tire mounting post 416, the pressure block 417, and the connecting rod 415, preventing breakage during tire installation. A receiving cavity is provided near one end of the supporting portion 418, and the supporting portion 418 is disposed in the receiving cavity. Since the connecting rod 415 is provided with the supporting portion 418, friction is likely to occur between the supporting portion 418 and the wheel rim. Therefore, to avoid wear, a corresponding receiving cavity with a shape matching that of the supporting portion 418 is provided in the second roller 412. The supporting portion 418 is placed in the receiving cavity, while the upper tire mounting post 416 and the pressure block 417 are placed outside the receiving cavity. This does not hinder the tire installation process and can avoid tire wear.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tire changer, comprising a body, characterized in that: The machine body is provided with a single-column double-slide structure (1), a column (2) and a working turntable (3); the single-column double-slide structure (1) comprises an upper tire disassembly assembly (4) and a lower tire disassembly assembly (5); the upper tire disassembly assembly (4) and the lower tire disassembly assembly (5) are mounted on the column (2) in a vertical direction; The upper tire mounting and dismounting assembly (4) comprises a tire mounting head (41), an upper tire mounting and dismounting cross arm (42) and an upper tire mounting and dismounting sliding assembly (43); The tire mounting head (41) includes a first roller (411), a second roller (412), a connecting portion (413) and a docking portion (414), wherein one end of the connecting portion (413) is sleeved with the first roller (411); the docking portion (414) includes a connecting rod (415) and an upper tire mounting column (416), wherein one end of the connecting portion (413) is connected to one end of the connecting rod (415), and the other end of the connecting rod (415) is connected to the upper tire mounting column (416), and the connecting rod (415) is sleeved with the second roller (412); The first roller (411) and the second roller (412) are axially arranged perpendicularly; one end of the upper tire mounting and dismounting cross arm (42) is connected to the connecting portion (413), and the other end is connected to the upper tire mounting and dismounting sliding assembly (43); the upper tire mounting and dismounting sliding assembly (43) is slidably connected to the column (2); when the tire is mounted, the wheel is placed on the working turntable (3), the first roller (411) abuts against the sidewall of the tire, the second roller (412) abuts against the rim of the wheel, and the upper tire mounting column (416) extends between the tire bead and the wheel rim; The docking portion (414) further includes a pressing block (417), the end surface of the pressing block (417) being an arc surface, the pressing block (417) being arranged on one side of the upper tire mounting column (416) and connected to the connecting rod (415), and when the first roller (411) abuts against the sidewall of the tire, the pressing block (417) abuts against the tire lip; The lower tire disassembly assembly (5) comprises a lower tire disassembly tool (51), a lower tire disassembly cross arm (52) and a lower tire disassembly sliding assembly (53); The lower tire disassembly and installation tool (51) comprises a lower tire disassembly and installation pressure roller (511) and a lower tire disassembly and installation column (512); the lower tire disassembly and installation pressure roller (511) and the lower tire disassembly and installation column (512) are arranged at the same side end of the lower tire disassembly and installation cross arm (52), the other end of the lower tire disassembly and installation cross arm (52) is connected to the lower tire disassembly and installation sliding assembly (53), and the lower tire disassembly and installation sliding assembly (53) is slidably connected to the column (2); when disassembling the tire, the lower tire disassembly and installation pressure roller (511) abuts against the sidewall of the tire, and when installing the tire, the lower tire disassembly and installation column (512) penetrates between the tire bead and the wheel rim.

2. A tire changer according to claim 1, characterized in that: It also includes a power-assisting device (6), which includes a large arm (61), a placenta (62), a pressure head (63) and a small arm (64); One end of the upper arm (61) is pivotally connected to the upper tire disassembly and installation sliding assembly (43), and the other end of the upper arm (61) is pivotally connected to the small arm (64). Both the upper arm (61) and the small arm (64) can swing on a plane perpendicular to the sliding direction of the upper tire disassembly and installation sliding assembly (43). The tire supporting plate (62) is installed at the pivotal connection between the upper arm (61) and the small arm (64), and the pressure head (63) is installed at the end of the small arm (64) away from one end of the upper arm (61).

3. A tire changer according to claim 1, characterized in that: The upper tire assembly (4) further comprises an upper tire assembly cross arm support (44), wherein the upper tire assembly cross arm support (44) is fixedly connected to the upper tire assembly sliding assembly (43); the upper tire assembly cross arm support (44) is provided with a prismatic upper mounting hole (441), and the upper tire assembly cross arm (42) is slidably connected to the upper tire assembly cross arm support (44) through the upper mounting hole (441); The lower tire disassembly assembly (5) further comprises a lower tire disassembly arm support (54), wherein the lower tire disassembly arm support (54) is fixedly connected to the lower tire disassembly sliding assembly (53); the lower tire disassembly arm support (54) is provided with a prismatic lower mounting hole (541), and the lower tire disassembly arm (52) is slidably connected to the lower tire disassembly arm support (54) through the lower mounting hole (541).

4. A tire changer according to claim 3, characterized in that: The upper tire disassembly and installation cross arm (42) and the lower tire disassembly and installation cross arm (52) are prisms, the outer side wall of the upper tire disassembly and installation cross arm (42) is provided with a scale line, and the lower tire disassembly and installation cross arm (52) is provided with an adjustment section (521), the cross-section of the adjustment section (521) is circular, and the circle is an inscribed circle of the lower mounting hole (541), and the adjustment section (521) can rotate in the lower mounting hole (541) to make the lower tire mounting column (512) be in a working position or a non-working position.

5. A tire changer according to claim 1, characterized in that: The machine body is also provided with a first driving device (7) and a second driving device (8), wherein the first driving device (7) drives the upper tire disassembly and assembly sliding assembly (43) to slide up and down along the column, and the second driving device (8) drives the lower tire disassembly and assembly sliding assembly (53) to slide up and down along the column.

6. A tire changer according to claim 1, characterized in that: The docking portion (414) further includes a supporting portion (418), one end of the connecting rod (415) is provided with the supporting portion (418), the diameter of the supporting portion (418) is larger than the diameter of the connecting rod (415), and the supporting portion (418) is provided with the upper tire mounting column (416) and the pressure block (417).

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