Lifting appliance for brake drum

Abstract

The utility model relates to the field of brake drum lifting appliances, and discloses a lifting appliance for a brake drum, which comprises a supporting disc frame for connecting and supporting, a plurality of supporting frameworks are fixedly connected to the periphery of the outer side of the supporting disc frame, clamping L-shaped rods are connected to the top ends of the supporting frameworks in a sliding manner, and a rolling frame is fixedly connected to the inner side of the supporting disc frame. The device comprises a rolling frame, a rotating hanging rod is rotatably connected to the interior of the rolling frame, a hanging ring is fixedly connected to the top end of the rotating hanging rod, a rotating disc is fixedly connected to the upper side of the exterior of the rotating hanging rod, and a rolling assembly is installed in the rolling frame and used for achieving convenient clamping of a brake drum. According to the device, the fixing efficiency of the device is improved, the device can conveniently clamp the brake drum, the stability of the device for adsorbing and fixing the brake drum is improved, and the stability of hoisting operation of the brake drum is further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of brake drum lifting tools, and in particular to a brake drum lifting tool. Background Technology

[0002] Brake drum lifting tools are specialized tools designed for the safe and efficient handling of brake drums. They are typically made of high-strength steel and are suitable for production lines, repair shops, and other similar settings. They significantly improve handling stability and reduce the risks associated with manual operation, meeting the needs of automobile manufacturing and after-sales maintenance.

[0003] Most lifting devices that clamp brake drums use screw adjustment to hold them, which requires multiple rotations of the screw for fixation, resulting in low clamping efficiency. In addition, most existing brake drums are round, and the friction of the claw surfaces at the contact points is small. Fixing them solely by clamping force results in poor stability. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology by proposing a brake drum lifting device, which facilitates the clamping of the device and improves the stability of the device in adsorbing and fixing the brake drum.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A brake drum lifting tool, comprising:

[0007] A support disc frame for connecting the support is provided. Multiple support frames are fixedly connected to the outer circumference of the support disc frame. Clamping L-shaped rods are slidably connected to the top of each support frame. A winding frame is fixedly connected to the inner side of the support disc frame. A rotating rod is rotatably connected inside the winding frame. A lifting ring is fixedly connected to the top of the rotating rod. A rotating disk is fixedly connected to the upper outer side of the rotating rod. A winding assembly is installed inside the winding frame to facilitate the clamping of the brake drum.

[0008] Multiple support columns are used to support the top of the disc frame. The top of each support column is fixedly connected to a transmission air ring. The outer side of the transmission air ring is connected to the inside of the clamping L-rod through a suction assembly to achieve stable adsorption of the brake drum.

[0009] Furthermore, the suction assembly includes an embedded air tube located inside the clamping L-bar, and multiple transmission hoses are fixedly connected to the outer circumference of the transmission air ring, with the outer sides of the transmission hoses respectively fixedly connected to the top end of the embedded air tube.

[0010] Furthermore, the winding assembly includes a winding roller located outside the rotating boom, with a strand of pull rope wound around the outside of the winding roller. The outer sides of the pull rope are respectively fixedly connected to the inner side of the clamping L-bar, and the outer sides of the pull rope are inserted into the interior of the supporting disc frame.

[0011] Furthermore, limiting slide rods are fixedly connected to both sides of the clamping L-rod, and the external of the limiting slide rods is slidably connected to the inside of the support frame.

[0012] Furthermore, the bottom end of the rotating disk is connected to the top end of the winding frame via a strong torsion spring.

[0013] Furthermore, an external exhaust pipe is fixedly connected to the top of the transmission air ring, and an air valve is fixedly connected to the outside of the external exhaust pipe.

[0014] Furthermore, a stable adsorption frame is fixedly connected to the bottom inner side of each clamping L-rod, and the lower outer side of each embedded air tube penetrates the interior of the stable adsorption frame.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, by pulling the L-bar outward, an outward pulling force is generated on the pull rope, causing the take-up roller to rotate. The powerful torsion spring then generates stored potential energy. When the L-bar is released, the powerful torsion spring drives the rotating disk to reverse, thereby fixing the brake drum by clamping the L-bar, improving the efficiency of fixing the device and making it convenient to clamp.

[0017] 2. In this utility model, an air pump generates an outward suction force on the external exhaust pipe, and the transmission air ring is connected to the embedded air pipe through the transmission hose, thereby discharging the air inside the stable adsorption frame to the outside, creating a negative pressure environment inside the stable adsorption frame, thereby adsorbing the outside of the brake drum, improving the stability of the device in adsorbing and fixing the brake drum, and further ensuring the stability of the brake drum during lifting and operation. Attached Figure Description

[0018] Figure 1 This is an overall drawing of a brake drum lifting device proposed in this utility model;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is an internal view of the support disc frame of a brake drum lifting device proposed in this utility model;

[0021] Figure 4 This is an internal view of the clamping L-shaped rod of a brake drum lifting device proposed in this utility model.

[0022] Legend:

[0023] 1. Support disc frame; 2. Support frame; 3. Limiting slide bar; 4. Clamping L-bar; 5. Stabilizing suction frame; 6. Lifting ring; 7. External exhaust pipe; 8. Transfer hose; 9. High-strength torsion spring; 10. Rewinding frame; 11. Support column; 12. Transfer air ring; 13. Rotating disc; 14. Rotating lifting rod; 15. Rewinding roller; 16. Pull rope; 17. Air valve; 18. Embedded air pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-3 This utility model provides an embodiment of a brake drum lifting device, comprising: a support disc frame 1 for connecting and supporting; multiple support frames 2 fixedly connected to the outer circumference of the support disc frame 1; clamping L-shaped rods 4 slidably connected to the top of each support frame 2; a winding frame 10 fixedly connected to the inner side of the support disc frame 1; a rotating lifting rod 14 rotatably connected inside the winding frame 10; a lifting ring 6 fixedly connected to the top of the rotating lifting rod 14; a rotating disk 13 fixedly connected to the upper outer side of the rotating lifting rod 14; and a rotating disc 13 fixedly connected to the upper outer side of the winding frame 14. The device is equipped with a winding assembly for convenient clamping of the brake drum. The winding assembly includes a winding roller 15 located outside the rotating rod 14. A strand of pull rope 16 is wound around the outside of the winding roller 15. The outer sides of the pull rope 16 are respectively fixedly connected to the inner side of the clamping L rod 4. The outer side of the pull rope 16 is inserted into the interior of the supporting disc frame 1. Limiting slide rods 3 are fixedly connected to both sides of the clamping L rod 4. The outer side of the limiting slide rod 3 is slidably connected to the interior of the supporting frame 2. The bottom end of the rotating disc 13 is connected to the top end of the winding frame 10 through a strong torsion spring 9.

[0026] The clamping process of this brake drum lifting device adopts a spring-loaded automatic locking mechanism: During operation, the clamping L-bar 4 is first pulled outward, which drives the take-up roller 15 to rotate through the pull rope 16. At the same time, the rotating lifting rod 14 causes the powerful torsion spring 9 to generate stored force deformation. After the lifting device is lowered to position the brake drum, the rotational force of the lifting ring 6 is released, and the powerful torsion spring 9 releases its potential energy, driving the take-up roller 15 to rotate in the opposite direction. Through the pull rope 16, all clamping L-bars 4 are simultaneously pulled to retract inward, realizing the rapid automatic clamping of the brake drum. This design utilizes the torsion spring energy storage principle to realize the linkage and synchronous action of multiple grippers, which not only ensures the uniform distribution of clamping force, but also significantly improves clamping efficiency, making it particularly suitable for batch operation scenarios.

[0027] Reference Figure 2 , Figure 3 and Figure 4 Multiple support columns 11 are used to support the top of the disc frame 1. A transmission air ring 12 is fixedly connected to the top of the support column 11. The outer side of the transmission air ring 12 is connected to the inside of the clamping L rod 4 through the suction adsorption assembly to achieve adsorption stability of the brake drum. The suction adsorption assembly includes an embedded air tube 18 located inside the clamping L rod 4. Multiple transmission hoses 8 are fixedly connected to the outer circumference of the transmission air ring 12. The outer side of the transmission hoses 8 is fixedly connected to the top of the embedded air tube 18. An external exhaust pipe 7 is fixedly connected to the top of the external exhaust pipe 7. An air valve 17 is fixedly connected to the outside of the external exhaust pipe 7. A stabilizing adsorption frame 5 is fixedly connected to the bottom of the inner side of the clamping L rod 4. The lower outer side of the embedded air tube 18 passes through the inside of the stabilizing adsorption frame 5.

[0028] When the stable adsorption frame 5 is attached to the outer surface of the brake drum, its flexible sealing structure automatically adapts to the contour deformation. After the vacuum pump is started, the airflow passes through the external exhaust pipe 7, the transmission air ring 12, the transmission hose 8 and the embedded air pipe 18 in sequence, continuously drawing the air out of the adsorption frame 5 to form a negative pressure chamber. When the vacuum reaches the set value, the air valve 17 automatically closes to maintain the seal, so that the adsorption frame 5 generates a strong adsorption force, forming a double fixation with the mechanical clamping mechanism. This design achieves rapid vacuuming through the air circuit linkage system, which not only compensates for the radial gap that may exist in traditional clamping, but also significantly improves the anti-swaying ability during the hoisting process. It is especially suitable for the safe hoisting of brake drums with high surface finish requirements.

[0029] Working principle: When fixing the brake drum, the clamping L-bar 4 is pulled outward, generating an outward pulling force on the pull rope 16, thereby rotating the take-up roller 15. At this time, the lifting device is lowered, and the brake drum is placed between multiple clamping L-bars 4. Due to the rotation of the rotating lifting rod 14, the high-strength torsion spring 9 is deformed, thereby generating stored potential energy in the high-strength torsion spring 9. After the brake drum is placed, the rotational force of the lifting ring 6 is canceled, and the stored potential energy of the high-strength torsion spring 9 is released, thereby rotating the take-up roller 15 in the opposite direction, generating an inward pulling force on the pull rope 16, thereby moving multiple clamping L-bars 4 inward simultaneously, thus controlling the brake drum. The brake drum is clamped and fixed. The stabilizing adsorption frame 5 deforms upon contact with the outside of the brake drum. The air pump is connected to the outside of the exhaust pipe 7 through the air pipe of the air pump. The air pump discharges the air inside the transmission air ring 12 to the outside and connects to the inside of the embedded air pipe 18 through the transmission hose 8. The embedded air pipe 18 connects to the inside of the stabilizing adsorption frame 5, thereby discharging the air inside the stabilizing adsorption frame 5 to the outside. This creates a negative pressure environment inside the stabilizing adsorption frame 5, which generates suction on the outside of the brake drum. Then, the air valve 17 is closed, thereby adsorbing the stabilizing adsorption frame 5 onto the outer surface of the brake drum, further improving the fixation of the brake drum.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lifting device for a brake drum, characterized in that, include: A support disc frame (1) is used for connecting the support. Multiple support frames (2) are fixedly connected to the outer circumference of the support disc frame (1). Clamping L rods (4) are slidably connected to the top of each support frame (2). A winding frame (10) is fixedly connected to the inner side of the support disc frame (1). A rotating rod (14) is rotatably connected inside the winding frame (10). A lifting ring (6) is fixedly connected to the top of the rotating rod (14). A rotating disk (13) is fixedly connected to the upper outer side of the rotating rod (14). A winding assembly is installed inside the winding frame (10) to facilitate the clamping of the brake drum. Multiple support columns (11) are used to support the top of the disc frame (1). The top of the support column (11) is fixedly connected to a transmission air ring (12). The outer side of the transmission air ring (12) is connected to the inside of the clamping L rod (4) through a suction adsorption assembly to achieve adsorption stability of the brake drum.

2. The brake drum lifting device according to claim 1, characterized in that: The suction assembly includes an embedded air tube (18) located inside the clamping L rod (4). Multiple transmission hoses (8) are fixedly connected to the outer circumference of the transmission air ring (12). The outer sides of the transmission hoses (8) are respectively fixedly connected to the top of the embedded air tube (18).

3. The brake drum lifting device according to claim 1, characterized in that: The winding assembly includes a winding roller (15) located outside the rotating boom (14), with a strand of pull rope (16) wound around the outside of the winding roller (15). The outer sides of the pull rope (16) are respectively fixedly connected to the inner side of the clamping L rod (4), and the outer side of the pull rope (16) is inserted into the interior of the supporting disc frame (1).

4. A brake drum lifting device according to claim 1, characterized in that: Both sides of the clamping L rod (4) are fixedly connected to limiting slide rods (3), and the external of the limiting slide rods (3) is slidably connected to the inside of the support frame (2).

5. A brake drum lifting device according to claim 1, characterized in that: The bottom end of the rotating disk (13) is connected to the top end of the winding frame (10) by a strong torsion spring (9).

6. A brake drum lifting device according to claim 2, characterized in that: The top end of the transmission air ring (12) is fixedly connected to an external exhaust pipe (7), and an air valve (17) is fixedly connected to the outside of the external exhaust pipe (7).

7. A brake drum lifting device according to claim 2, characterized in that: The inner bottom of each clamping L rod (4) is fixedly connected to a stable adsorption frame (5), and the outer lower side of the embedded air tube (18) respectively penetrates the interior of the stable adsorption frame (5).

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