Guide gap adjusting mechanism of tire changer

Abstract

A guide gap adjusting mechanism of a tire changer relates to the field of tire changers, is mounted on a rectangular sleeve and comprises a support frame, a mounting groove is formed in the left side of the support frame, a rotating shaft is mounted in the mounting groove, a rotating part is rotatably connected to the rotating shaft, an insertion hole matched with the support frame is formed in the rectangular sleeve, and the rectangular sleeve is provided with an insertion hole matched with the support frame. A locking assembly is arranged between the inserting hole and the supporting frame and can limit movement of the supporting frame in the inserting hole. By means of the supporting frame, the rotating piece and the locking assembly, accurate adjustment of the guide gap between the rectangular sleeve and the rectangular steel pipe of the tire changer is achieved, the stability and efficiency of the tire changer in the working process are improved, it is guaranteed that the rectangular sleeve can smoothly and stably move vertically along the rectangular steel pipe, and the service life of the tire changer is prolonged. Therefore, the service life of the tire changer is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tire changing machines, in particular to a guide gap adjusting mechanism for tire changing machines. Background Art

[0002] In the field of tire repair and replacement, vertical tire changing machines are an efficient and automated equipment, and their design and performance are of great significance for improving work efficiency and reducing labor intensity. Traditional vertical tire changing machines often use a combination of slide rails and sliders as a guide mechanism in the vertical direction to achieve precise lifting and lowering adjustment of the tire changing assembly. However, this design exposes several key problems when dealing with heavy load conditions, which limits its wide application and reliability. The vertical large-scale tire changing device disclosed by Chinese patent CN207579470U realizes the lifting function through vertical slide rails and slidingly connected pulleys. When the load is large, the contact pressure between the pulley and the slide rail is unevenly distributed, resulting in local stress concentration, which may lead to the risk of slide rail deformation or pulley falling off, seriously affecting the stability and safety of the equipment.

[0003] In order to overcome the above-mentioned defects, Jining Keshang Machinery Equipment Co., Ltd. has carried out technological innovation and developed a vertical trolley tire changer that uses a vertical rectangular steel tube as a guide rod and a rectangular sleeve on its outside. This design effectively improves the load-bearing capacity of the guide mechanism through the geometric stability of the rectangular structure, allowing the tire changer to handle larger tire weights. However, over time, the long-term sliding fit between the rectangular steel tube and the rectangular sleeve will inevitably cause wear, resulting in a gradual increase in the fit gap. The existence of this gap causes the tire changing assembly to shake unnecessary during the lifting process, which not only affects the accuracy and efficiency of the tire changing, but may also cause potential damage to the tire and wheel hub. Utility Model Content

[0004] The purpose of the present invention is to solve the problems raised in the above background technology, and then proposes a tire changing machine guide gap adjustment mechanism.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A tire changer guide gap adjustment mechanism is installed on a rectangular sleeve and includes a support frame. A mounting groove is formed on the left side of the support frame. A rotating shaft is installed in the mounting groove. A rotating part is rotatably connected to the rotating shaft. A plug hole that matches the support frame is provided on the rectangular sleeve. A locking assembly is provided between the plug hole and the support frame. The locking assembly can limit the movement of the support frame in the plug hole.

[0007] Furthermore, the rotating member is a roller or a needle bearing.

[0008] Furthermore, the locking assembly includes an internal thread fixing ring, an internal thread fixing ring is provided on the outside of the plug-in hole, the support frame is cylindrical, and an external thread is provided on the outside of the support frame, and the external thread cooperates with the internal thread fixing ring.

[0009] Furthermore, a hexagonal rotating hole is provided on a side of the support frame away from the rotating member.

[0010] Furthermore, the locking assembly includes an internal threaded fixing ring, an internal threaded fixing ring is provided on the outside of the plug-in hole, a guide block is provided on the outside of the support frame, a guide groove matching the guide block is provided on the inner wall of the plug-in hole, and a bolt or a set screw is threadedly connected to the internal threaded fixing ring.

[0011] Furthermore, the end of the bolt or set screw can abut against the end of the support frame to drive the guide block to move along the guide groove.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the present invention realizes the precise adjustment of the guide gap between the rectangular sleeve of the tire changer and the rectangular steel pipe through the support frame, the rotating part and the locking assembly, which not only improves the stability and efficiency of the tire changer during operation, but also ensures that the rectangular sleeve can move vertically smoothly and stably along the rectangular steel pipe, thereby extending the service life of the tire changer and reducing maintenance costs, and has significant practical value and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the first embodiment of the present utility model in use;

[0014] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0015] Figure 3 It is the left view of the support frame;

[0016] Figure 4 It is the right side view of the support frame;

[0017] Figure 5 This is a schematic diagram of the second embodiment of the present utility model in use;

[0018] Figure 6 for Figure 5 A partial enlarged view of point B in the middle;

[0019] Among them: 21 plug hole, 22 internal thread fixing ring, 23 support frame, 24 rotating shaft, 25 rotating part, 26 external thread, 27 hexagonal rotating hole, 28 guide block, 29 bolt, 101 support plate, 102 rectangular steel pipe, 103 rectangular sleeve, 104 hydraulic cylinder. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The present invention is further described in conjunction with the drawings and embodiments:

[0021] First embodiment

[0022] like Figures 1-4 As shown, the tire changer includes a support plate 101, on which a rectangular steel pipe 102 is provided, and a rectangular sleeve 103 is slidably fitted on the outer side of the rectangular steel pipe. A hydraulic cylinder 104 is rotatably connected to the support plate, and the telescopic rod of the hydraulic cylinder is connected to the rectangular sleeve. The hydraulic cylinder can make the rectangular sleeve move vertically along the rectangular steel pipe.

[0023] A tire changer guide gap adjustment mechanism is installed on a rectangular sleeve, including a support frame 23, a mounting groove is formed on the left side of the support frame, a rotating shaft 24 is installed in the mounting groove, and a rotating member 25 is rotatably connected to the rotating shaft, and a plug hole 21 that matches the support frame is provided on the rectangular sleeve, and a locking assembly is provided between the plug hole and the support frame, and the locking assembly can limit the movement of the support frame in the plug hole.

[0024] Furthermore, the rotating member may be a roller or a needle bearing.

[0025] Specifically, the locking assembly includes an internal thread fixing ring 22, an internal thread fixing ring is provided on the outside of the plug hole, and the support frame is cylindrical. Figure 3 As shown, an external thread 26 is provided on the outer side of the support frame, and the external thread cooperates with the internal thread fixing ring.

[0026] Furthermore, a hexagonal rotating hole 27 is provided on a side of the support frame away from the rotating member.

[0027] Working method, ensure that the rectangular sleeve and rectangular steel pipe of the tire changer are in the correct position and the hydraulic cylinder is working properly. Prepare an Allen wrench for subsequent locking operations. First insert the end of the support frame with the rotating part (roller or needle bearing) into the socket hole on the rectangular sleeve. Use an Allen wrench to insert it into the hexagonal rotating hole on the support frame. Rotate the support frame so that the external thread on its outside is matched with the thread of the internal thread fixing ring. Continue to rotate the support frame until the rotating part is close to the rectangular steel pipe, and ensure that the rolling surface of the rotating part is matched with the vertical lifting direction of the rectangular sleeve.

[0028] As needed, adjust the position of the rotating member on the rectangular sleeve to achieve optimal guide clearance. Perform a functional test to ensure that the rectangular sleeve can move smoothly and stably vertically along the rectangular steel tube when the tire changer is operating. Confirm that all components are securely installed and not loose. Perform a final functional verification to ensure that the tire changer's guide clearance adjustment mechanism is functioning properly.

[0029] Second embodiment

[0030] like Figure 5 and Figure 6 As shown, the tire changer includes a support plate 101, on which a rectangular steel pipe 102 is provided, and a rectangular sleeve 103 is slidably fitted on the outer side of the rectangular steel pipe. A hydraulic cylinder 104 is rotatably connected to the support plate, and the telescopic rod of the hydraulic cylinder is connected to the rectangular sleeve. The hydraulic cylinder can make the rectangular sleeve move vertically along the rectangular steel pipe.

[0031] A tire changer guide gap adjustment mechanism is installed on a rectangular sleeve, including a support frame 23, a mounting groove is formed on the left side of the support frame, a rotating shaft 24 is installed in the mounting groove, and a rotating member 25 is rotatably connected to the rotating shaft, and a plug hole 21 that matches the support frame is provided on the rectangular sleeve, and a locking assembly is provided between the plug hole and the support frame, and the locking assembly can limit the movement of the support frame in the plug hole.

[0032] Furthermore, the rotating member may be a roller or a needle bearing.

[0033] Specifically, the locking assembly includes an internal threaded fixing ring 22, an internal threaded fixing ring is provided on the outside of the plug-in hole, and a guide block 28 is provided on the outside of the support frame. In conjunction with this, a guide groove that cooperates with the guide block is provided on the inner wall of the plug-in hole, and a bolt 29 or a set screw is threadedly connected to the internal threaded fixing ring.

[0034] Furthermore, the end of the bolt or set screw can abut against the end of the support frame, driving the guide block to move along the guide groove, thereby causing the rotating member to abut against the surface of the rectangular steel pipe.

[0035] Working method, ensure that the rectangular sleeve and rectangular steel pipe of the tire changer are in the correct position, and the hydraulic cylinder can work normally, so that the rectangular sleeve can move vertically along the rectangular steel pipe. Prepare the necessary tools, such as wrenches, etc., for subsequent assembly and adjustment. Align the mounting groove of the support frame with the plug hole on the rectangular sleeve, and insert the support frame into the plug hole. Make sure that the guide block on the support frame is correctly matched with the guide groove on the inner wall of the plug hole. Use bolts or set screws to lock the internal threaded fixing ring on the outside of the plug hole. Rotate the bolt or set screw so that its end rests on the end of the support frame, thereby driving the guide block to move along the guide groove. Continue to rotate the bolt or set screw until the rotating part (roller or needle bearing) is tightly against the surface of the rectangular steel pipe.

[0036] As needed, the position of the rotating member on the rectangular steel tube can be fine-tuned to achieve the optimal guide clearance. A functional test is performed to ensure that the rectangular sleeve can move smoothly and stably vertically along the rectangular steel tube during operation, and that the rotating member can roll normally to reduce friction. Confirm that all components are securely installed and not loose. A final functional verification is performed to ensure that the tire changer's guide clearance adjustment mechanism is functioning properly and effectively improving the machine's efficiency and stability.

[0037] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A tire changing machine guide gap adjustment mechanism, mounted on a rectangular sleeve, characterized in that: It includes a support frame, an installation groove is formed on the left side of the support frame, a rotating shaft is installed in the installation groove, a rotating part is rotatably connected to the rotating shaft, a plug hole matching the support frame is provided on the rectangular sleeve, a locking assembly is provided between the plug hole and the support frame, and the locking assembly can limit the movement of the support frame in the plug hole; the locking assembly includes an internal thread fixing ring, an internal thread fixing ring is provided on the outside of the plug hole, the support frame is cylindrical, and an external thread is provided on the outside of the support frame, and the external thread matches the internal thread fixing ring.

2. The tire changing machine guide gap adjustment mechanism according to claim 1, characterized in that: The rotating member is a roller or a needle bearing.

3. The tire changing machine guide gap adjustment mechanism according to claim 1, characterized in that: A hexagonal rotating hole is provided on one side of the support frame away from the rotating member.

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