Automobile repair hub fixing device

Abstract

The utility model discloses a kind of automobile maintenance hub fixing devices, including tyre changer assembly;Tire lifting mechanism;Hub clamping fixed mechanism.The utility model is through setting the tire lifting mechanism of overturning, support arm lays flat, and support plate is lowered to ground, and operator can easily roll into tire, and then through the contraction of first telescopic cylinder can make support arm overturn to vertical state, and further realize that tire can be automatically lifted from ground to working position, reduce the labor intensity of artificial handling, especially suitable for the lifting operation of heavier tire;Through the setting of second telescopic cylinder, support plate can always be dynamically kept level during the overturning process of support arm, so that tire is always in vertical state during lifting process, can improve the stability of support platform to tire clamping fixation.

Description

Technical Field

[0001] This utility model belongs to the technical field of tire disassembly and assembly equipment, and in particular relates to a wheel hub fixing device for automobile repair. Background Technology

[0002] Tire changers are key pieces of equipment in automotive repair and tire replacement for construction vehicles, primarily used to separate tires from or install tires on rims. Currently, tire changers on the market are mainly divided into two types: vertical and horizontal. Among vertical tire changers, for example, one disclosed in publication number CN204978118U, involves placing the tire vertically, fixing the rim with a clamping mechanism, and then using a tire-removing mechanism to separate the tire bead.

[0003] In actual use, when fixing the tires, the tires are usually lifted onto the workbench manually for assembly. Due to the large weight of the tires, manual lifting is difficult and labor-intensive. In addition, the wheel rim is easily damaged during the lifting process.

[0004] In view of the shortcomings of the existing technology, this utility model discloses a wheel hub fixing device for automobile repair. By setting a rotatable tire lifting mechanism, the tire can be automatically lifted from the ground to the working position, reducing the labor intensity of manual handling, and is especially suitable for lifting heavy tires. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an automotive wheel hub fixing device to solve the technical problems mentioned in the background art.

[0006] This utility model provides the following technical solution: A wheel hub fixing device for automobile maintenance, comprising: A tire changing machine assembly includes a base, a frame is vertically mounted at the rear end of the base, and a U-shaped machine platform is mounted on the upper surface of the base. A tire lifting mechanism is provided in the recess of the machine platform, including a support arm. The lower end of the support arm is hinged to the middle of the upper end surface of the base. A support plate is hinged to the upper end of the support arm. A first telescopic cylinder for driving the support arm to flip is provided between the support arm and the machine frame. A second telescopic cylinder for keeping the support plate tending to be horizontal during the flipping process is provided between the support plate and the support arm. A wheel hub clamping and fixing mechanism is provided at the upper end of the support plate, including a support platform. The upper end of the support platform is provided with a plurality of clamping plates for clamping the inner side of the wheel hub at equal intervals along its circumference. Each clamping plate is driven by a third telescopic cylinder. The plurality of clamping plates retract or extend synchronously in a radial manner along the radial direction of the support platform.

[0007] Preferably, the machine platform includes a left guard platform and a right guard platform located at the left and right ends of the upper surface of the base. The rear ends of the left guard platform and the right guard platform are connected by a rear guard platform. The tire lifting mechanism is located between the left guard platform and the right guard platform. The rear guard platform is provided with a first opening for the first telescopic cylinder to pass through.

[0008] Preferably, the upper end of the frame is provided with a tire removal mechanism.

[0009] Preferably, the lower end of the support arm is hinged to the middle of the upper surface of the base via a first hinge seat, and the upper end of the support arm is hinged to the middle of the lower end of the support plate via a second hinge seat.

[0010] Preferably, the cylinder body of the first telescopic cylinder is hinged to the frame via a third hinge seat, and the piston part of the first telescopic cylinder is hinged to the support arm via a fourth hinge seat.

[0011] Preferably, a sixth hinge seat is provided on the left and right sides of the front end of the lower end of the pallet, and a fifth hinge seat is provided on the left and right sides of the upper end of the support arm, and the second telescopic cylinder is located between the fifth hinge seat and the sixth hinge seat.

[0012] Preferably, the upper end of the front end face of the support arm is further provided with a first support rod for support.

[0013] Preferably, a second support rod for support is provided on the left and right sides of the front end of the lower end of the tray.

[0014] Preferably, the support platform and the pallet are arranged parallel to each other, and a rotating shaft is vertically arranged in the middle of the lower end face of the support platform. The lower end of the rotating shaft is connected to the middle of the upper end face of the pallet through a bearing.

[0015] Preferably, the support platform is provided with a second opening extending vertically through each of the moving trajectory positions of the clamping plate. The length direction of the second opening is arranged along the radial direction of the support platform. A guide slide rod is also provided in the second opening along its length direction. A guide slider is adapted on the guide slide rod. The lower end of the clamping plate is connected to the upper end face of the guide slider.

[0016] Preferably, the extension and retraction direction of the third telescopic cylinder is parallel to the axial direction of the guide slide rod, the cylinder body of the third telescopic cylinder is connected to the lower end face of the support platform, and the piston part of the third telescopic cylinder is connected to the lower end face of the guide slide rod through a connecting rod.

[0017] Preferably, each of the clamping plates is equipped with two third telescopic cylinders.

[0018] Preferably, the third telescopic cylinders work synchronously and in the same manner.

[0019] Preferably, each of the clamping plates has an anti-slip rubber layer on its outer side.

[0020] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention provides a wheel hub fixing device for automobile repair. By setting a rotatable tire lifting mechanism, when the support arm is laid flat, the pallet is lowered to the ground, and the operator can easily roll the tire in. Then, the support arm can be flipped to a vertical state by the contraction of the first telescopic cylinder, thereby realizing that the tire can be automatically lifted from the ground to the working position, reducing the labor intensity of manual handling, and is especially suitable for lifting heavy tires.

[0021] (2) The present invention provides a wheel hub fixing device for automobile repair. By setting the second telescopic cylinder, the pallet can be dynamically kept horizontal during the rotation of the support arm, so that the tire is always in a vertical state during the lifting process, which can improve the stability of the support platform for clamping and fixing the tire. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a left-side view of the present invention.

[0024] Figure 2 This is a schematic diagram of the tire lifting mechanism of this utility model.

[0025] Figure 3 This is a schematic diagram of the support arm of this utility model when it is laid flat.

[0026] Figure 4 This is a schematic diagram of the lower end face structure of the support platform of this utility model.

[0027] Figure 5 This is a schematic diagram of the stabilizing mechanism of this utility model.

[0028] Figure 6 This is a schematic diagram of the lower end face structure of the support platform in Embodiment 2 of this utility model.

[0029] In the diagram: 1. Base; 2. Frame; 3. Machine platform; 31. Left guard platform; 32. Right guard platform; 33. Rear guard platform; 34. First opening; 4. Tire removal mechanism; 5. Tire lifting mechanism; 51. Support arm; 52. Pallet; 53. First telescopic cylinder; 54. Second telescopic cylinder; 55. First hinge seat; 56. Second hinge seat; 57. Third hinge seat; 58. Fourth hinge seat; 59. Fifth hinge seat; 510. Sixth hinge seat; 6. Wheel hub clamping and fixing mechanism; 61. Support platform; 62. Clamping plate; 63. Third telescopic cylinder; 64. Rotating shaft; 65. Second opening; 66. Guide slide rod; 67. Guide slider; 68. Connecting rod; 69. Anti-slip rubber layer; 7. Stabilizing mechanism; 71. Fourth telescopic cylinder; 72. Clamping head; 73. Clamping blind hole; 8. First support rod; 9. Second support rod; 10. Annular internal rack. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] Example 1 This utility model provides a wheel hub fixing device for automobile repair, see reference. Figure 1-5 The system includes a tire changing machine assembly, which includes a base 1. A frame 2 is vertically mounted at the rear end of the base 1. A tire-removing mechanism 4 is mounted at the upper end of the frame 2. A U-shaped platform 3 is mounted on the upper surface of the base 1. The platform 3 includes a left guard platform 31 and a right guard platform 32 located at the left and right ends of the upper surface of the base 1. The rear ends of the left guard platform 31 and the right guard platform 32 are connected by a rear guard platform 33. A tire lifting mechanism 5 is located between the left guard platform 31 and the right guard platform 32. The rear guard platform 33 has a first opening 34 for the passage of the first telescopic cylinder 53. The structure and working principle of the tire-removing mechanism 4 are the same as those of the tire-removing mechanism in a tire changing machine disclosed in publication number CN204978118U.

[0033] refer to Figure 1-5 It also includes a tire lifting mechanism 5, which is located in the recess of the machine base 3. The tire lifting mechanism includes a support arm 51. The lower end of the support arm 51 is hinged to the middle of the upper end surface of the base 1. The upper end of the support arm 51 is hinged to a support plate 52. A first telescopic cylinder 53 for driving the support arm 51 to flip is provided between the support arm 51 and the machine frame 2. A second telescopic cylinder 54 for keeping the support plate 52 tending to be horizontal during the flipping process is provided between the support plate 52 and the support arm 51. The lower end of the support arm 51 is hinged to the middle of the upper surface of the base 1 via the first hinge seat 55, and the upper end of the support arm 51 is hinged to the middle of the lower end of the pallet 52 via the second hinge seat 56; the cylinder body of the first telescopic cylinder 53 is hinged to the frame 2 via the third hinge seat 57, and the piston part of the first telescopic cylinder 53 is hinged to the support arm 51 via the fourth hinge seat 58; the left and right sides of the front end of the lower end of the pallet 52 are respectively provided with the sixth hinge seat 510, and the left and right sides of the upper end of the support arm 51 are respectively provided with the fifth hinge seat 59, and the second telescopic cylinder 54 is located between the fifth hinge seat 59 and the sixth hinge seat 510. Both the first telescopic cylinder 53 and the second telescopic cylinder 54 are hydraulic cylinders. The first telescopic cylinder 53 provides 90-degree tilting power. When the first telescopic cylinder 53 extends, the support arm 51 can rotate forward around the first hinge seat 55 until it is in a horizontal state. During the tilting process, the second telescopic cylinder 54 is also in an extended state, which enables the pallet 52 to remain dynamically horizontal during the downward tilting process of the support arm 51. When it is necessary to lift the tire, the first telescopic cylinder 53 retracts, and the support arm 51 can rotate backward around the first hinge seat 55 until it is in a vertical state. During the tilting process, the second telescopic cylinder 54 is in a retracted state, which enables the pallet 52 to remain dynamically horizontal during the upward tilting process of the support arm 51.

[0034] The upper end of the front face of the support arm 51 is also provided with a first support rod 8 for support; the left and right sides of the front end of the lower end of the tray 52 are respectively provided with second support rods 9 for support. When the support arm 51 is in a horizontal state, the lower ends of the first support rod 8 and the second support rod 9 are in contact with the ground, improving the stability of the support arm 51 and the tray 52 when the tire is placed in a three-point support manner.

[0035] refer to Figure 1-5It also includes a hub clamping and fixing mechanism 6, located at the upper end of the support plate 52. The hub clamping and fixing mechanism 6 includes a support platform 61. The upper end of the support platform 61 is provided with a plurality of clamping plates 62 for clamping the inner side of the hub at equal intervals along its circumference. Each clamping plate 62 is driven by a third telescopic cylinder 63. The plurality of clamping plates 62 radially retract or extend synchronously along the radial direction of the support platform 61. The support platform 61 and the support plate 52 are arranged parallel to each other. A rotating shaft 64 is vertically arranged in the middle of the lower end face of the support platform 61. The lower end of the rotating shaft 64 is connected to the middle of the upper end face of the support plate 52 through a bearing. The support platform 61 is also provided with a second opening 65 at the position of each clamping plate 62's moving trajectory, which is provided vertically. The second opening 65 is arranged radially along the length of the support platform 61. A guide slide rod 66 is also arranged along its length inside the second opening 65. A guide slider 67 is adapted to be mounted on the guide slide rod 66. The lower end of the clamping plate 62 is connected to the upper end face of the guide slider 67. The extension and retraction direction of the third telescopic cylinder 63 is parallel to the axial direction of the guide slide rod 66. The cylinder body of the third telescopic cylinder 63 is connected to the lower end face of the support platform 61. The piston of the third telescopic cylinder 63 is connected to the lower end face of the guide slider 67 through a connecting rod 68. Each clamping plate 62 is equipped with two third telescopic cylinders 63. Several third telescopic cylinders 63 work synchronously and in the same manner. An anti-slip rubber layer 69 is provided on the outer side of each clamping plate 62. Before the tire is placed on the upper surface of the support platform 61, several clamping plates 62 are in a state of retraction towards the center to facilitate the placement of the wheel hub. After the tire is placed on the upper surface of the support platform 61, the simultaneous operation of several third telescopic cylinders 63 can drive several clamping plates 62 to expand outward in a radial direction, thereby achieving the centering and clamping fixation of the wheel hub position.

[0036] refer to Figure 1-5 As shown, the system also includes a stabilizing mechanism 7, which comprises two fourth telescopic cylinders 71. The piston portion of each fourth telescopic cylinder 71 is equipped with a clamping head 72. Clamping blind holes 73, adapted to the two clamping heads 72, are respectively provided on the left and right sides of the support arm 51, for stabilizing the support arm 51 when it is in a vertical position. The fourth telescopic cylinders 71 are horizontally arranged in the left-right direction, and the cylinder bodies of the two fourth telescopic cylinders 71 are symmetrically located inside the left guardrail 31 and right guardrail 32. When the support arm 51 is in a vertical position, the synchronous extension of the two fourth telescopic cylinders 71 pushes the two clamping heads 72 into the two clamping blind holes 73, achieving clamping of the support arm 51 and improving the stability of the tire during tire removal operations.

[0037] Example 2 Based on Example 1, and referring to Figure 6The lower end face of the support platform 61 is also coaxially provided with an annular internal rack 10, which meshes with a drive gear. The drive gear is driven by a motor, and the motor body is mounted on the support plate 52. During tire removal, the tire bead is separated from the wheel hub by inserting the tire removal mechanism 4 between the wheel hub and the tire bead and by rotating the support platform 61 around its axis. In the prior art, the support platform 61 is generally manually rotated around its axis. This technical solution controls the operation of the motor to drive the drive gear to rotate slowly, thereby driving the annular internal rack 10 and the support platform 61 to rotate around its axis, replacing the manual rotation of the support platform 61 and further reducing labor intensity.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wheel hub fixing device for automobile repair, characterized in that, include: The tire changing machine assembly includes a base (1), a frame (2) is vertically arranged at the rear end of the base (1), and a U-shaped machine platform (3) is arranged on the upper surface of the base (1). The tire lifting mechanism (5) is located in the recess of the machine base (3) and includes a support arm (51). The lower end of the support arm (51) is hinged to the middle of the upper end face of the base (1). The upper end of the support arm (51) is hinged to a support plate (52). A first telescopic cylinder (53) for driving the support arm (51) to flip is provided between the support arm (51) and the machine frame (2). A second telescopic cylinder (54) for keeping the support plate (52) tending to be horizontal during the flipping process is provided between the support plate (52) and the support arm (51). The wheel hub clamping and fixing mechanism (6) is located at the upper end of the support plate (52) and includes a support platform (61). The upper end of the support platform (61) is provided with a plurality of clamping plates (62) for clamping the inner side of the wheel hub at equal intervals along its circumference. Each clamping plate (62) is driven by a third telescopic cylinder (63). The plurality of clamping plates (62) retract or extend synchronously in a radial manner along the radial direction of the support platform (61).

2. The automotive wheel hub fixing device according to claim 1, characterized in that, The machine platform (3) includes a left guard platform (31) and a right guard platform (32) located on the left and right ends of the upper surface of the base (1). The rear ends of the left guard platform (31) and the right guard platform (32) are connected by a rear guard platform (33). The tire lifting mechanism (5) is located between the left guard platform (31) and the right guard platform (32). The rear guard platform (33) is provided with a first opening (34) for the first telescopic cylinder (53) to pass through.

3. The automotive wheel hub fixing device according to claim 1, characterized in that, The lower end of the support arm (51) is hinged to the middle of the upper surface of the base (1) through the first hinge seat (55), and the upper end of the support arm (51) is hinged to the middle of the lower end of the pallet (52) through the second hinge seat (56); the cylinder body of the first telescopic cylinder (53) is hinged to the frame (2) through the third hinge seat (57), and the piston part of the first telescopic cylinder (53) is hinged to the support arm (51) through the fourth hinge seat (58).

4. The automotive wheel hub fixing device according to claim 3, characterized in that, The lower end of the pallet (52) is provided with a sixth hinge seat (510) on the left and right sides of the front end, and the upper end of the support arm (51) is provided with a fifth hinge seat (59) on the left and right sides of the front end. The second telescopic cylinder (54) is located between the fifth hinge seat (59) and the sixth hinge seat (510).

5. The automotive wheel hub fixing device according to claim 4, characterized in that, The upper end of the front face of the support arm (51) is also provided with a first support rod (8) for support; the left and right sides of the front end of the lower end of the tray (52) are respectively provided with second support rods (9) for support.

6. The automotive wheel hub fixing device according to claim 1, characterized in that, The support platform (61) and the pallet (52) are arranged parallel to each other. A rotating shaft (64) is vertically arranged in the middle of the lower end face of the support platform (61). The lower end of the rotating shaft (64) is connected to the middle of the upper end face of the pallet (52) through a bearing.

7. The automotive wheel hub fixing device according to claim 1, characterized in that, The support platform (61) is provided with a second opening (65) at each position of the moving trajectory of the clamping plate (62), which is provided vertically. The length direction of the second opening (65) is arranged along the radial direction of the support platform (61). A guide slide rod (66) is also provided in the second opening (65) along its length direction. A guide slider (67) is adapted on the guide slide rod (66). The lower end of the clamping plate (62) is connected to the upper end face of the guide slider (67).

8. The automotive wheel hub fixing device according to claim 7, characterized in that, The extension and retraction direction of the third telescopic cylinder (63) is parallel to the axial direction of the guide slide rod (66). The cylinder body of the third telescopic cylinder (63) is connected to the lower end face of the support platform (61). The piston part of the third telescopic cylinder (63) is connected to the lower end face of the guide slider (67) through the connecting rod (68).

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