Roller lifting device

Abstract

A roller lifting device relates to the technical field of workover rig equipment and comprises a support, a lifting mechanism and a control mechanism. The support is fixedly arranged on the winch frame, a roller and a push disc type clutch are arranged on the winch frame, the roller comprises a roller shaft and a brake disc, the brake disc is arranged on the side close to the push disc type clutch, and the support is located below the brake disc; the inner side end of the lifting mechanism is hinged to the support, the lifting end of the lifting mechanism is located below the brake disc, and the lifting end of the lifting mechanism is located between the inner side end and the outer side end of the lifting mechanism and is close to the support; the control mechanism is installed on the winch frame, and the force application end of the control mechanism is hinged to the outer side end of the lifting mechanism. An original mode of lifting the roller by adopting a crane or a jack can be changed, the lifting cost is reduced, the lifting stability is ensured, and the service life of the roller is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of workover rig equipment, in particular to a drum lifting device. Background Art

[0002] A workover rig is a special oil drilling and production equipment and is the most basic and main power source in workover and downhole operation construction.

[0003] The workover rig includes a drum and a disc clutch. During the use of the drum, the disc clutch needs to be used in cooperation. When the disc clutch is combined with the drum, the drum will cause wear to the friction plates inside the disc clutch. After long-term use, the wear of the friction plates will be relatively serious and the friction plates need to be replaced. The traditional replacement methods are as follows: one is to lift the entire drum from the winch frame by a crane and then replace the friction plates inside the disc clutch, which is costly and time-consuming; the other is to place a jack at the bottom of the drum, support the drum through the jack to lift it, and then replace the friction plates inside the disc clutch. This requires workers to manually place the jack on the winch frame and then control the jack to lift and lower to lift the drum, which is time-consuming and laborious; moreover, when lifting the drum by the jack, it is easy to damage the drum shaft of the drum due to the difficulty in controlling the lifting speed of the jack, affecting the use safety and service life of the drum and increasing the production cost. Summary of the Utility Model

[0004] In view of this, the technical problem to be solved by the utility model is to provide a drum lifting device that can lift one end of the drum, facilitating workers to disassemble the friction plates inside the disc clutch, changing the original lifting method using a crane or a jack, reducing the lifting cost, ensuring the lifting stability, and extending the service life of the drum.

[0005] To solve the above technical problem, the technical solution of the utility model is:

[0006] The drum lifting device includes a support, a lifting mechanism, and a control mechanism;

[0007] The support is fixedly arranged on the winch frame. A drum and a disc clutch are arranged on the winch frame. The drum includes a drum shaft and a brake disc vertically arranged on the drum shaft. The brake disc is arranged on one side close to the disc clutch. The support is located below the brake disc;

[0008] The inner end of the lifting mechanism is hinged to the support. The outer end of the lifting mechanism extends out of the winch frame and is located outside it. The lifting end of the lifting mechanism is located below the brake disc. The lifting end of the lifting mechanism is between the inner end and the outer end of the lifting mechanism and is arranged close to the support;

[0009] The control mechanism is installed on the winch frame. The force application end of the control mechanism is hinged to the outer side end of the lifting mechanism. When the force application end of the control mechanism moves upward vertically, it drives the lifting end of the lifting mechanism to move upward vertically and lift the brake disc upward.

[0010] Preferably, the lifting mechanism includes a lever and a support plate;

[0011] The lever is arranged below the brake disc along the width direction of the winch frame. The inner side end of the lever is hinged to the support. The outer side end of the lever extends out of the winch frame and is located outside it;

[0012] The support plate is hinged to the lever and is located between the lever and the brake disc. The hinged position of the support plate and the lever is directly below the center of the brake disc.

[0013] Preferably, the hinged position of the support plate and the lever is between the inner side end and the outer side end of the lever, and the hinged position of the support plate and the lever is arranged close to the support.

[0014] Preferably, the support plate includes a support plate body and two hinge ears fixedly arranged below the support plate body;

[0015] A receiving groove for receiving the brake disc is concavely arranged on the support plate body;

[0016] The lever is hinged between the two hinge ears.

[0017] Preferably, the hinged position of the support plate and the lever is on the center line of the lever.

[0018] Preferably, the control mechanism includes a bracket fixedly arranged on the winch frame. A vertical turnbuckle bolt is rotatably installed on the bracket;

[0019] The bolt head of the turnbuckle bolt is hinged to the outer side end of the lifting mechanism, and an adjusting nut is threadedly connected to the screw rod of the turnbuckle bolt.

[0020] Preferably, the bracket includes a support flat plate fixedly arranged on the winch frame. The vertical turnbuckle bolt is rotatably installed on the support flat plate; A rib plate is fixedly arranged between the support flat plate and the winch frame.

[0021] After adopting the above technical solution, the beneficial effects of the present utility model are:

[0022] In the present utility model, it includes a support, a lifting mechanism and a control mechanism. Among them, the support is fixedly arranged on the winch frame. A drum and a disc clutch are arranged on the winch frame. The drum includes a drum shaft and a brake disc vertically arranged on the drum shaft. The brake disc is arranged on one side close to the disc clutch. The support is located below the brake disc. The inner end of the lifting mechanism is hinged to the support. The outer end of the lifting mechanism extends out of the winch frame and is located outside it. The lifting end of the lifting mechanism is located below the brake disc. The lifting end of the lifting mechanism is located between the inner end and the outer end of the lifting mechanism and is arranged close to the support. The control mechanism is installed on the winch frame. The force - applying end of the control mechanism is hinged to the outer end of the lifting mechanism. When the force - applying end of the control mechanism moves upward vertically, it drives the lifting end of the lifting mechanism to move upward vertically and lift the brake disc upward. When driving the brake disc to move upward, it can make the disc clutch connected to the drum move upward together. After the disc clutch moves out of the winch frame, it is convenient for workers to disassemble the friction plates inside the disc clutch, changing the original lifting method using a crane or a jack, and reducing the lifting cost.

[0023] Since the lifting end of the lifting mechanism is located between the inner end and the outer end of the lifting mechanism and is arranged close to the support, the inner end of the lifting mechanism is hinged to the support, and the force - applying end of the control mechanism is hinged to the outer end of the lifting mechanism. Therefore, a power arm is formed between the outer end of the lifting mechanism and the support, and a resistance arm is formed between the lifting end of the lifting mechanism and the support. The length of the power arm is greater than the length of the resistance arm, which belongs to a labor - saving lever. During the lifting process, workers can use a smaller force to drive the lifting end of the lifting mechanism to move upward through the control mechanism to lift the drum, thus saving time and effort. Moreover, using the control mechanism to control the lifting mechanism for lifting has a simple structure, is easy to operate, does not require picking up and placing a jack, improves the lifting efficiency, the lifting speed is controllable and much less than the jacking speed of the jack, will not cause damage to the drum shaft of the drum, ensures the lifting stability, and extends the service life of the drum. Brief Description of the Drawings

[0024] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0025] Figure 1 is the structural schematic diagram of the drum lifting device according to the embodiment of the present utility model;

[0026] Figure 2 is the cross - sectional view of the drum lifting device according to the embodiment of the present utility model;

[0027] Figure 3 is Figure 2 the enlarged view of part A of

[0028] In the figure:

[0029] 1. Support;

[0030] 2. Lifting mechanism; 21. Lever; 22. Support plate; 221. Support plate body; 222. Hinge ear; 223. Accommodating groove;

[0031] 3. Control mechanism; 31. Bracket; 311. Support flat plate; 312. Rib plate; 32. Toggle bolt; 33. Adjusting nut;

[0032] 4. Winch frame;

[0033] 5. Drum; 51. Drum shaft; 52. Brake disc;

[0034] 6. Disc clutch; 61. Friction plate. Specific embodiments

[0035] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0036] As Figures 1 to 3 collectively shown, the present utility model includes a support 1, a lifting mechanism 2 and a control mechanism 3.

[0037] Among them, the support 1 is fixedly arranged on the winch frame 4. A drum 5 and a disc clutch 6 are arranged on the winch frame 4. The drum 5 includes a drum shaft 51 and a brake disc 52 vertically arranged on the drum shaft 51. The brake disc 52 is arranged on one side close to the disc clutch 6. The support 1 is located below the brake disc 52. The inner end of the lifting mechanism 2 is hinged to the support 1. The outer end of the lifting mechanism 2 extends out of the winch frame 4 and is located outside thereof. The lifting end of the lifting mechanism 2 is located below the brake disc 52. The lifting end of the lifting mechanism 2 is located between the inner end and the outer end of the lifting mechanism 2 and is arranged close to the support 1. The control mechanism 3 is installed on the winch frame 4. The force application end of the control mechanism 3 is hinged to the outer end of the lifting mechanism 2. When the force application end of the control mechanism 3 moves upward vertically, it drives the lifting end of the lifting mechanism 2 to move upward vertically and lift the brake disc 52 upward.

[0038] When driving the brake disc 52 to move upward, it can make the disc clutch 6 connected to the drum 5 move upward together. After the disc clutch 6 moves out of the winch frame 4, it is convenient for workers to disassemble the friction plate 61 in the disc clutch 6, changing the original lifting method using a crane or a jack, and reducing the lifting cost.

[0039] Moreover, using the control mechanism 3 to control the lifting of the lifting mechanism 2 has a simple structure, is easy to operate, does not require handling a jack, improves the lifting efficiency, the lifting speed is controllable and much lower than the jacking speed of the jack, will not cause damage to the drum shaft 51 of the drum 5, ensures the lifting stability, and extends the service life of the drum 5.

[0040] In the present application, the lifting mechanism 2 includes a lever 21 and a support plate 22; the lever 21 is disposed below the brake disc 52 along the width direction of the winch frame 4, the inner end of the lever 21 is hinged to the support 1, and the outer end of the lever 21 extends out of the winch frame 4 and is located outside thereof; the support plate 22 is hinged to the lever 21 and is located between the lever 21 and the brake disc 52, and the hinge joint between the support plate 22 and the lever 21 is directly below the center of the brake disc 52.

[0041] The hinge joint between the support plate 22 and the lever 21 is located between the inner end and the outer end of the lever 21, and the hinge joint between the support plate 22 and the lever 21 is disposed close to the support 1.

[0042] Since the lifting end of the lifting mechanism 2 is located between the inner end and the outer end of the lifting mechanism 2 and is disposed close to the support 1, specifically, the hinge joint between the support plate 22 and the lever 21 is disposed close to the support 1, the outer end of the lever 21 and the support 1 form a power arm, and the support plate 22 and the support 1 form a resistance arm. The length of the power arm is greater than the length of the resistance arm, which belongs to a labor-saving lever. During the lifting process, the worker can use a smaller force to drive the lifting end of the support plate 22 to move upward through the control mechanism 3 to lift the drum 5, thereby saving time and effort.

[0043] The hinge joint between the support plate 22 and the lever 21 is located on the center line of the lever 21. When the support plate 22 just abuts against the brake disc 52, the center line of the lever 21 is parallel to the horizontal plane, and the vertical distance from the support 1 to the force application end of the control mechanism 3 is the longest. The length of the power arm formed by the support 1 and the outer end of the lever 21 is the longest. Therefore, the acting force required to lift the brake disc 52 through the support plate 22 is the smallest, achieving the purpose of saving labor.

[0044] The support plate 22 includes a support plate body 221 and two hinge ears 222 fixedly provided below the support plate body 221; a receiving groove 223 for receiving the brake disc 52 is concavely provided on the support plate body 221; the lever 21 is hinged between the two hinge ears 222. The provision of the receiving groove 223 can ensure the stability when the support plate body 221 abuts against the brake disc 52, prevent it from separating from the brake disc 52, and improve the reliability of the lifting.

[0045] In the present application, the control mechanism 3 includes a bracket 31 fixedly provided on the winch frame 4, and a vertical knuckle bolt 32 is rotatably installed on the bracket 31; the bolt head of the knuckle bolt 32 is hinged to the outer end of the lifting mechanism 2, and an adjusting nut 33 is threadedly connected to the screw rod of the knuckle bolt 32. Specifically, the bolt head of the knuckle bolt 32 is hinged to the outer end of the lever 21, and when the knuckle bolt 32 moves up and down, it drives the lever 21 to move up and down together.

[0046] The bracket 31 includes a support plate 311 fixed on the winch frame 4, and a vertically arranged eyebolt 32 is rotatably mounted on the support plate 311; a rib plate 312 is fixed between the support plate 311 and the winch frame 4. In the present application, the adjustment nut 33 is located above the support plate 311, and the eyebolt 32 is vertically arranged and hinged to the lever 21, so that the force transmitted by the lever 21 is transmitted to the adjustment nut 33 through the eyebolt 32, and all the force acts on the support plate 311 through the adjustment nut 33, so the setting of the rib plate 312 enhances the support strength of the support plate 311.

[0047] When the present application is in use, the adjusting nut 33 is screwed to drive the movable bolt 32 to move upward, and the lever 21 drives the support plate 22 to move upward together. The support plate 22 lifts the brake disc 52, drives the drum 5 and the push-plate clutch 6 to move upward together, so that the push-plate clutch 6 leaves the winch frame 4, and then the worker disassembles and replaces the friction plate 61. The structure is simple and the operation is convenient.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The drum lifting device is characterized in that: Including support, lifting mechanism and control mechanism; The support is fixed on the winch frame, and the winch frame is provided with a drum and a push-disk clutch, the drum comprises a drum shaft and a brake disc vertically arranged on the drum shaft, the brake disc is arranged on a side close to the push-disk clutch, and the support is located below the brake disc; The inner end of the lifting mechanism is hinged to the support, the outer end of the lifting mechanism extends out of the winch frame and is located outside the winch frame, the lifting end of the lifting mechanism is located below the brake disc, and the lifting end of the lifting mechanism is located between the inner end and the outer end of the lifting mechanism and is arranged close to the support; The control mechanism is installed on the winch frame, and the force-applying end of the control mechanism is hinged to the outer end of the lifting mechanism. When the force-applying end of the control mechanism moves vertically upward, it drives the lifting end of the lifting mechanism to move vertically upward and lift the brake disc upward.

2. The drum lifting device according to claim 1, characterized in that: The lifting mechanism comprises a lever and a supporting plate; The lever is arranged below the brake disc along the width direction of the winch frame, the inner end of the lever is hinged to the support, and the outer end of the lever extends out of the winch frame and is located outside the winch frame; The support plate is hinged to the lever and is located between the lever and the brake disc. The hinge point between the support plate and the lever is located directly below the center of the brake disc.

3. The drum lifting device according to claim 2, characterized in that: The hinged joint between the support plate and the lever is located between the inner end and the outer end of the lever, and the hinged joint between the support plate and the lever is arranged close to the support.

4. The drum lifting device according to claim 2, characterized in that: The support plate comprises a support plate body and two hinged ears fixedly arranged below the support plate body; The support plate body is provided with a receiving groove for receiving the brake disc; The lever is hinged between the two hinge ears.

5. The drum lifting device according to claim 2, characterized in that: The hinged joint between the support plate and the lever is located on the center line of the lever.

6. The drum lifting device according to claim 1, characterized in that: The control mechanism comprises a bracket fixed on the winch frame, and a vertically arranged movable bolt is rotatably mounted on the bracket; The bolt head of the movable bolt is hinged to the outer end of the lifting mechanism, and an adjusting nut is threadedly connected to the screw rod of the movable bolt.

7. The drum lifting device according to claim 6, characterized in that: The bracket comprises a supporting plate fixedly arranged on the winch frame, on which the vertically arranged movable bolt is rotatably mounted; a rib plate is fixedly arranged between the supporting plate and the winch frame.

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