Stand column of tire changer

Abstract

The utility model discloses an upright post of a tire changer, which comprises a rotary lifting upright post arranged above a fixed upright post; the bottom end of the fixed stand column is fixed on the tire changer base, and the fixed stand column is provided with a containing cavity; the top end of the connecting rod is fixedly connected with the bottom end of the rotary lifting stand column, and a pulley is arranged on the connecting rod; the guide sleeve is arranged in the containing cavity, the connecting rod is sleeved with the guide sleeve, a sliding groove is formed in the side wall of the guide sleeve, and the pulley can slide along the sliding groove; the air cylinder is arranged in the containing cavity, the bottom end of the air cylinder is arranged on the tire changer base, and the top end of the air cylinder is rotationally connected with the bottom end of the connecting rod; the air cylinder drives the connecting rod to ascend and descend, and the pulley slides in the sliding groove, so that the connecting rod rotates along the axis of the connecting rod. The problems existing in an existing tire changer stand column are solved.

Description

Technical Field

[0001] This utility model relates to the field of tire changing machine technology, and in particular to a tire changing machine column. Background Technology

[0002] Tire changers are used to remove tires from wheel rims. During tire removal and installation, the working head needs to be kept away from the tire to ensure sufficient operating space for tasks such as clamping the rim and changing the tire.

[0003] Most common tire changers use a tilting column, driven by a cylinder to tilt the column backward, thus moving the working head away from the tire. However, the working head at the top of the column tilts backward, causing the overall center of gravity of the column to shift backward. The cylinder must continuously bear a large pulling force to maintain the stability of the column and prevent it from tipping over. This design makes the cylinder prone to fatigue, thus shortening its service life and adversely affecting the overall reliability of the tire changer. In addition, the operating space provided after the column tilts backward is still limited, which greatly restricts the operator's operation. Therefore, some tire changers use a rotating connection between the column and the push-pull arm that mounts the working head. The push-pull arm must be manually rotated to move the working head away from the top of the tire changer base, and the lifting and rotating of the working head are done separately, making the operation process cumbersome. Summary of the Invention

[0004] This utility model provides a tire changer column to overcome the problems existing in the existing tire changer columns.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A tire changer column includes:

[0007] A rotating column is installed above a fixed column;

[0008] A fixed column is fixed at its bottom end to the tire changer base, and the fixed column is provided with a receiving cavity;

[0009] The connecting rod is fixedly connected at its top end to the bottom end of the lifting column, and a pulley is provided on the connecting rod;

[0010] A guide sleeve is disposed within the receiving cavity. The guide sleeve is fitted onto the connecting rod. The side wall of the guide sleeve is provided with a sliding groove, and the pulley can slide along the sliding groove.

[0011] A cylinder is disposed in the receiving cavity, the bottom end of the cylinder is disposed on the tire changer base, and the top end of the cylinder is rotatably connected to the bottom end of the connecting rod.

[0012] The cylinder drives the connecting rod to rise and fall, and the pulley slides in the groove, causing the connecting rod to rotate along its own axis.

[0013] Furthermore, the groove is a spiral groove.

[0014] Furthermore, the rotation angle of the spiral groove is 90 degrees.

[0015] Furthermore, two symmetrical sliding grooves are provided on the side wall of the guide sleeve.

[0016] Furthermore, it also includes a support shaft perpendicular to the axis of the connecting rod, with two pulleys respectively disposed at both ends of the support shaft.

[0017] Furthermore, it also includes positioning protrusions on the lifting column and positioning grooves on the top of the fixed column.

[0018] Furthermore, it also includes a bushing and a connecting shaft. The bottom end of the connecting rod is provided with a hole for embedding the bushing. The bushing is sleeved on the connecting shaft, and the bushing and the connecting shaft are clearance-fitted.

[0019] One end of the connecting shaft is provided with a connecting hole for accommodating the end of the cylinder piston rod, and the end of the piston rod in the connecting hole is fixed by a fixing bolt.

[0020] The connecting shaft has a threaded portion at the end away from the piston rod, and a limiting nut is fitted on the threaded portion to prevent the bushing from disengaging from the connecting shaft.

[0021] Furthermore, the fixed column is provided with an inspection hole corresponding to the starting end of the slide groove.

[0022] Beneficial effects: The tire changer column provided by this utility model has a guide sleeve with a sliding groove inside the fixed column, and the cylinder is connected to the lifting column through the connecting rod. The cylinder drives the connecting rod to rise and fall, and the pulley of the connecting rod slides in the sliding groove of the guide sleeve, so that the connecting rod rotates along its own axis, thereby driving the lifting column to rotate during the rising and falling process, so that the working head can be moved away from the top of the tire changer base, providing operating space for the operator. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a tire changer column installed on a tire changer, as disclosed in this utility model.

[0025] Figure 2 This is a schematic diagram of the structure of a tire changing machine column disclosed in this utility model;

[0026] Figure 3 This is a rear view of a tire changing machine column disclosed in this utility model;

[0027] Figure 4 for Figure 3 DD sectional view;

[0028] Figure 5 for Figure 4 Enlarged view at point F;

[0029] Figure 6 This is a right view of a tire changing machine column disclosed in this utility model;

[0030] Figure 7 for Figure 6 EE sectional view;

[0031] Figure 8 This is a schematic diagram of the structure of a tire changing machine column with part of the fixed column removed, as disclosed in this utility model;

[0032] Figure 9 This is a schematic diagram of the structure of a tire changing machine column with the guide sleeve and part of the fixed column removed, as disclosed in this utility model.

[0033] Figure 10 This is a schematic diagram of the structure of the guide sleeve of the tire changing machine column disclosed in this utility model.

[0034] In the picture:

[0035] 1. Spiral-lift column;

[0036] 2. Fix the columns;

[0037] 3. Connecting rod; 301. Pulley;

[0038] 4. Guide sleeve; 401, spiral groove;

[0039] 5. Cylinder;

[0040] 6. Support shaft;

[0041] 7. Bushing;

[0042] 8. Positioning protrusion;

[0043] 9. Positioning groove;

[0044] 10. Inspection hole cover;

[0045] 11. Connecting shaft; 1101. Connecting hole; 1102. Threaded part;

[0046] 12. Fixing bolts;

[0047] 13. Limit nut;

[0048] A. Tire changer base; B. Push-pull arm; C. Working head. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0050] This embodiment provides a tire changing machine column, such as... Figures 1 to 9 As shown, it includes:

[0051] The lifting column 1 is positioned above the fixed column 2;

[0052] The fixed column 2 is fixed at its bottom end to the tire changer base A, and the fixed column 2 is provided with a receiving cavity;

[0053] The top end of the connecting rod 3 is welded and fixed to the bottom end of the lifting column 1, and a pulley 301 is provided on the connecting rod 3;

[0054] The guide sleeve 4 is disposed in the receiving cavity. The guide sleeve 4 is fixedly connected to the fixed column 2 by bolts. The guide sleeve 4 is sleeved on the connecting rod 3. The side wall of the guide sleeve 4 is provided with a sliding groove, and the pulley 301 can slide along the sliding groove.

[0055] Cylinder 5 is disposed in the receiving cavity. The bottom end of cylinder 5 is disposed on the tire changer base A. The top end of cylinder 5 is rotatably connected to the bottom end of connecting rod 3. In this embodiment, the cylinder body of cylinder 5 is hinged to tire changer base A.

[0056] The cylinder 5 drives the connecting rod 3 to rise and fall, and the pulley 301 slides in the groove, causing the connecting rod 3 to rotate along its own axis.

[0057] This embodiment provides a tire changer column, in which a guide sleeve 4 with a sliding groove is provided in the fixed column 2, and a cylinder 5 is connected to the lifting column 1 through a connecting rod 3, so that the cylinder 5 drives the connecting rod 3 to rise and fall. The pulley 301 of the connecting rod 3 slides in the sliding groove of the guide sleeve 4, so that the connecting rod 3 rotates along its own axis, thereby driving the lifting column 1 to rotate during the rising and falling process, so that the working head can be moved away from the top of the tire changer base A, providing operating space for the operator.

[0058] In a specific embodiment, such as Figure 4 As shown, it also includes a support shaft 6 perpendicular to the axis of the connecting rod 3, the support shaft 6 being fixed to the connecting rod 3, as shown. Figure 9 As shown, the two pulleys 301 are respectively disposed at both ends of the support shaft 6, as... Figure 10 As shown, two sliding grooves are symmetrically provided on the side wall of the guide sleeve 4. The sliding grooves are spiral grooves 401, and the rotation angle of the spiral grooves 401 is 90 degrees.

[0059] In this embodiment, as Figure 9 As shown, nuts are fitted at both ends of the support shaft 6, and the nuts are used to prevent the pulley 301 from separating from the support shaft 6;

[0060] The two symmetrically arranged grooves can improve the stability and motion accuracy of the connecting rod 3 during operation. The spiral groove 401 allows the pulley 301 to rise and fall spirally, so that the rotation of the connecting rod 3 can proceed smoothly. The 90-degree rotation angle allows the lifting column 1 to drive the working head to rotate at a large angle, thus leaving enough operating space for the operator.

[0061] In a specific embodiment, such as Figure 2 As shown, it also includes a positioning protrusion 8 on the lifting column 1 and a positioning groove 9 on the top of the fixed column 2, so as to achieve positioning and locking of the fixed column 2 and the lifting column 1 after the lifting column 1 descends.

[0062] In a specific embodiment, such as Figure 5 and Figure 7 As shown, it also includes a bushing 7 and a connecting shaft 11. The bottom end of the connecting rod 3 is provided with a hole for embedding the bushing 7. The bushing 7 is sleeved on the connecting shaft 11. The bushing 7 and the connecting shaft 11 are clearance-fitted, so that the bushing 7 can rotate on the connecting shaft 11.

[0063] One end of the connecting shaft 11 is provided with a connecting hole 1101 for accommodating the end of the piston rod of the cylinder 5, and the end of the piston rod in the connecting hole 1101 is fixed by a fixing bolt 12 screwed onto the connecting shaft 11.

[0064] like Figure 5 As shown, the end of the connecting shaft 11 away from the piston rod is provided with a threaded part 1102, and a limiting nut 13 is fitted on the threaded part 1102 to prevent the bushing 7 from disengaging from the connecting shaft 11.

[0065] In a specific embodiment, the fixed column 2 is provided with an inspection hole corresponding to the starting end of the slide groove, so as to facilitate the installation and maintenance of the pulley 301. In this embodiment, the fixed column 2 is fixed with an inspection hole cover 10 for covering the inspection hole by bolts, so as to prevent debris from entering the inspection hole.

[0066] In practical use, such as Figure 1As shown, the top of the lifting column 1 is provided with an insertion hole for inserting the push-pull arm B, the working head C is set on the push-pull arm B, and the bottom of the fixed column 2 is fixed on the tire changer base A. The lifting column 1 is rotated and raised and lowered by the cylinder 5, so that the lifting column 1 drives the working head C to approach or move away from the tire located on the tire changer base A.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tire changing machine column, characterized by, The utility model relates to a tire changing machine, including: A rotating column (1) is arranged above a fixed column (2); The bottom end of the fixed column (2) is fixed on the tire changing machine base, and the fixed column (2) is provided with a containing cavity; A connecting rod (3) is fixedly connected with the bottom end of the rotating column (1), and a pulley (301) is arranged on the connecting rod (3); A guide sleeve (4) is arranged in the containing cavity, the guide sleeve (4) is sleeved on the connecting rod (3), and a sliding groove is arranged on the side wall of the guide sleeve (4), and the pulley (301) can slide in the sliding groove; A pneumatic cylinder (5) is arranged in the containing cavity, the bottom end of the pneumatic cylinder (5) is arranged on the tire changing machine base, and the top end of the pneumatic cylinder (5) is rotatably connected with the bottom end of the connecting rod (3); The pneumatic cylinder (5) drives the connecting rod (3) to ascend and descend, and the pulley (301) slides in the sliding groove, so that the connecting rod (3) rotates along the axis thereof.

2. A tire changing machine column according to claim 1, characterized in that The sliding groove is a spiral groove (401).

3. A tire changing machine column according to claim 2, wherein, The rotation angle of the spiral groove (401) is 90 degrees.

4. A tire changing machine column according to claim 1, wherein Two sliding grooves are symmetrically arranged on the side wall of the guide sleeve (4).

5. A tire changing machine column according to claim 4, wherein, A supporting shaft (6) perpendicular to the axis of the connecting rod (3) is further included, and the two pulleys (301) are arranged at the two ends of the supporting shaft (6) respectively.

6. A tire changing machine column according to claim 1, wherein A positioning protrusion (8) arranged on the rotating column (1) and a positioning groove (9) arranged at the top end of the fixed column (2) are further included.

7. A tire changing machine column according to claim 1 wherein, A shaft sleeve (7) and a connecting shaft (11) are further included, the bottom end of the connecting rod (3) is provided with a hole for embedding the shaft sleeve (7), the shaft sleeve (7) is sleeved on the connecting shaft (11), and the shaft sleeve (7) is in clearance fit with the connecting shaft (11); One end of the connecting shaft (11) is provided with a connecting hole (1101) for accommodating the end part of the piston rod of the pneumatic cylinder (5), and the end part of the piston rod in the connecting hole (1101) is fixed through a fixing bolt (12); The end of the connecting shaft (11) away from the piston rod is provided with a threaded part (1102), a limiting nut (13) is sleeved on the threaded part (1102), and the shaft sleeve (7) is blocked from being separated from the connecting shaft (11) through the limiting nut (13).

8. A tire changing machine column according to claim 1 wherein, The fixed column (2) is provided with an inspection hole corresponding to the starting end of the sliding groove.

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