Emergency brake assembly for winch of workover rig

Abstract

The utility model discloses a workover rig winch emergency brake assembly which comprises a supporting seat, a mounting shaft is rotationally connected to the supporting seat, a winding wheel is fixed to the mounting shaft, a traction rope is wound on the winding wheel, the workover rig winch emergency brake assembly further comprises a brake box fixed to one side of the supporting seat, one end of the mounting shaft is located in the brake box, and the other end of the mounting shaft is located in the brake box. A brake assembly used for emergency braking is arranged in the brake box. When the workover rig winch emergency brake assembly and the workover rig winch are used, rotation of the brake disc, the installation shaft and the winding wheel is limited through the brake assembly, the emergency brake effect is achieved, and in the braking process, hydraulic oil bubbles are separated from the assembly, so that the service life of the workover rig winch is prolonged. And air bubbles stored in the circulated and conveyed hydraulic oil are cut and crushed, the air bubbles are assisted to be separated from the interior of the hydraulic oil, and the process of hydraulic transmission for emergency braking is more sensitive and efficient.

Description

Technical Field

[0001] The utility model belongs to the technical field of emergency brakes for winches of well repair rigs, and in particular relates to an emergency brake assembly for winches of well repair rigs. Background Art

[0002] The emergency brake of the workover rig winch is a part of the brake system of the workover rig. It is mainly used to quickly brake the workover rig in an emergency and stop the transportation of personnel and materials. Hydraulic drive is a common driving method for brake components. During the hydraulic drive process, in order to ensure the sensitivity and transmission effect of the drive, the air in the hydraulic oil inside the hydraulic pipe needs to be discharged through the air bleed valve. During the exhaust process, some air circulates in the hydraulic oil in the form of bubbles, which is not convenient for direct discharge, affecting the braking effect of the emergency brake component during the hydraulic transmission process.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0005] A workover rig winch emergency brake assembly, comprising a support seat, a mounting shaft rotatably connected to the support seat, a winding wheel fixed to the mounting shaft, a traction rope wound on the winding wheel, and a brake box fixed to one side of the support seat, one end of the mounting shaft is located inside the brake box, and a brake assembly for emergency braking is arranged inside the brake box;

[0006] The brake assembly includes a U-shaped frame fixed inside the brake box, a brake disc is fixed at one end of the mounting shaft, the brake disc is located between the U-shaped frames, mounting cylinders are fixed on opposite sides of the U-shaped frame, brake pads for pressing against the brake disc are connected to the mounting cylinders through connecting components, a hydraulic component for hydraulically driving the brake pads is arranged inside the brake box, and a hydraulic oil bubble separation component for ensuring transmission is arranged on the hydraulic component.

[0007] The connecting assembly includes a first piston plate slidably connected to the inside of the mounting cylinder, a transmission rod slidably connected to the front end of the mounting cylinder, two ends of the transmission rod are respectively fixed to the brake pad and the first piston plate, and a spring is sleeved on the outer side of the transmission rod.

[0008] The hydraulic assembly includes a piston cylinder installed inside a brake box, a second piston plate being slidably connected to the piston cylinder, the piston cylinder and two mounting cylinders being communicated with each other through two sets of delivery pipes, hydraulic oil being filled between the second piston plate and the first piston plate, and a driving member for pushing the second piston plate is provided on the outside of the brake box.

[0009] The driving member is a cylinder installed outside the brake box, and the output end of the cylinder is fixed to the second piston plate.

[0010] An exhaust valve for exhausting air is arranged at the upper end of the piston cylinder.

[0011] The hydraulic oil bubble separation component includes a mounting frame fixed inside the piston cylinder, the mounting frame is rotatably connected to a drive shaft, a plurality of cutters for cutting and crushing bubbles inside the hydraulic oil are fixed on the drive shaft, and fan blades are fixed to the upper end of the drive shaft, and the fan blades are arranged at an angle.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model discloses an emergency brake assembly for a workover rig winch. When the workover rig winch is in use, the brake assembly is used to limit the rotation of the brake disc, the mounting shaft and the winding wheel, thereby achieving the effect of emergency braking. In addition, during the braking process, the hydraulic oil bubble separation assembly is used to cut and crush the air bubbles in the circulating hydraulic oil, thereby assisting the air bubbles to separate from the hydraulic oil, thereby making the emergency braking process of the hydraulic transmission more sensitive and efficient.

[0014] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In the attached picture:

[0016] Figure 1 It is a schematic diagram of the overall appearance structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the brake box structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the brake assembly structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the connection component, hydraulic component and hydraulic oil bubble separation component of the utility model.

[0020] In the figure: 101-support seat; 102-mounting shaft; 103-winding wheel; 2-brake box; 301-brake disc; 302-U-shaped frame; 303-mounting cylinder; 304-brake pad; 401-first piston plate; 402-transmission rod; 403-spring; 501-piston cylinder; 502-second piston plate; 503-delivery pipe; 6-cylinder; 7-exhaust valve; 801-mounting frame; 802-drive shaft; 803-cutter; 804-fan blade. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0022] like Figures 1 to 4 As shown, a workover rig winch emergency brake assembly includes a support seat 101, a mounting shaft 102 is rotatably connected to the support seat 101, a winding wheel 103 is fixed to the mounting shaft 102, a traction rope is wound on the winding wheel 103, and a brake box 2 is fixed to one side of the support seat 101, one end of the mounting shaft 102 is located inside the brake box 2, and a brake assembly for emergency braking is arranged inside the brake box 2;

[0023] The brake assembly includes a U-shaped frame 302 fixed inside the brake box 2, a brake disc 301 is fixed at one end of the mounting shaft 102, the brake disc 301 is located between the U-shaped frames 302, mounting cylinders 303 are fixed on opposite sides of the U-shaped frame 302, and a brake pad 304 for abutting and squeezing the brake disc 301 is connected to the mounting cylinder 303 through a connecting assembly, and a hydraulic assembly for hydraulically driving the brake pad 304 is arranged inside the brake box 2, and a hydraulic oil bubble separation assembly for ensuring transmission is arranged on the hydraulic assembly;

[0024] When the workover rig winch is in use, the brake assembly is used to limit the rotation of the brake disc 301, the mounting shaft 102 and the winding wheel 103, thereby achieving the effect of emergency braking. In addition, during the braking process, the hydraulic oil bubble separation assembly is used to cut and crush the air bubbles in the circulating hydraulic oil, thereby assisting in their separation from the hydraulic oil, thereby making the hydraulic transmission emergency braking process more sensitive and efficient.

[0025] The connecting component includes a first piston plate 401 slidably connected to the inside of the mounting cylinder 303, a transmission rod 402 is slidably connected to the front end of the mounting cylinder 303, two ends of the transmission rod 402 are respectively fixed to the brake pad 304 and the first piston plate 401, and a spring 403 is sleeved on the outer side of the transmission rod 402; the first piston plate 401 and the transmission rod 402 are used to facilitate the connection and transmission of the brake pad 304, and the spring 403 is used to facilitate the reset of the brake pad 304 after braking.

[0026] The hydraulic assembly includes a piston cylinder 501 installed inside the brake box 2, and a second piston plate 502 is slidably connected to the piston cylinder 501. The piston cylinder 501 is communicated with the two mounting cylinders 303 through two groups of delivery pipes 503. Hydraulic oil is filled between the second piston plate 502 and the first piston plate 401. A driving member for pushing the second piston plate 502 is provided on the outside of the brake box 2; the second piston plate 502 is pushed to slide inside the piston cylinder 501 by the cylinder 6 to squeeze the hydraulic oil. Under the pressure of the hydraulic oil, the two first piston plates 401 are pushed toward the outside of the mounting cylinder 303. During the movement of the first piston plate 401, the two transmission rods 402 push the two brake pads 304 to abut against the two sides of the brake disc 301 respectively. Through the abutment and squeezing effect, the rotation of the brake disc 301, the mounting shaft 102 and the winding wheel 103 is restricted, thereby achieving the effect of emergency braking.

[0027] The driving member is a cylinder 6 installed on the outside of the brake box 2, and the output end of the cylinder 6 is fixed to the second piston plate 502; through the cylinder 6, the second piston plate 502 is conveniently driven.

[0028] An exhaust valve 7 for exhausting air is provided at the upper end of the piston cylinder 501; during the hydraulic transmission process, the air inside the piston cylinder 501 is regularly discharged to the outside through the exhaust valve 7, so that the emergency braking process of the hydraulic transmission is more sensitive and efficient.

[0029] The hydraulic oil bubble separation component includes a mounting frame 801 fixed inside the piston cylinder 501, and a driving shaft 802 is rotatably connected to the mounting frame 801. A plurality of cutters 803 for cutting and crushing bubbles inside the hydraulic oil are fixed on the driving shaft 802. A fan blade 804 is fixed to the upper end of the driving shaft 802, and the fan blade 804 is inclined. In the process of pushing the hydraulic oil to slide inside the piston cylinder 501 through the second piston plate 502, the flowing hydraulic oil and the inclined fan blade 804 are pressed against each other, pushing the driving shaft 802 to rotate on the mounting frame 801. In the process of the driving shaft 802 rotating, each cutter 803 is driven to rotate. Through the rotation of each cutter 803, the air bubbles inside the circulating hydraulic oil are cut and crushed, thereby assisting their separation from the hydraulic oil.

[0030] When the workover rig winch is in use, the winding wheel 103 is driven by the rotation of the mounting shaft 102 to reel in or release the traction rope, thereby assisting the lifting and lowering operation of the workover rig;

[0031] During the lifting and lowering of the well repair machine, when emergency braking is required, the second piston plate 502 is pushed by the cylinder 6 to slide inside the piston cylinder 501 to squeeze the hydraulic oil. Under the pressure of the hydraulic oil, the two first piston plates 401 are pushed to move toward the outside of the mounting cylinder 303. During the movement of the first piston plate 401, the two transmission rods 402 push the two brake pads 304 to respectively abut against the two sides of the brake disc 301. Through the abutment and squeezing effect, the rotation of the brake disc 301, the mounting shaft 102 and the winding wheel 103 is restricted, thereby achieving the effect of emergency braking.

[0032] During the hydraulic transmission process, the air inside the piston cylinder 501 is regularly discharged through the exhaust valve 7, so that the emergency braking process of the hydraulic transmission is more sensitive and efficient. In the process of pushing the hydraulic oil to slide inside the piston cylinder 501 through the second piston plate 502, the flowing hydraulic oil and the inclined fan blades 804 are squeezed against each other, pushing the drive shaft 802 to rotate on the mounting frame 801. During the rotation of the drive shaft 802, each cutter 803 is driven to rotate. Through the rotation of each cutter 803, the air bubbles inside the circulating hydraulic oil are cut and broken, and the air bubbles are assisted to separate from the hydraulic oil. Through the separation of air, the subsequent more effective exhaust operation of the interior of the piston cylinder 501 is facilitated.

Claims

1. A workover rig winch emergency brake assembly, comprising: A support seat (101), wherein a mounting shaft (102) is rotatably connected to the support seat (101), a winding wheel (103) is fixed to the mounting shaft (102), and a traction rope is wound on the winding wheel (103); It is characterized by further comprising: A brake box (2) is fixed on one side of the support seat (101), one end of the mounting shaft (102) is located inside the brake box (2), and a brake assembly for emergency braking is arranged inside the brake box (2); The brake assembly comprises a U-shaped frame (302) fixed inside a brake box (2); a brake disc (301) is fixed to one end of the mounting shaft (102); the brake disc (301) is located between the U-shaped frames (302); mounting cylinders (303) are fixed on opposite sides of the U-shaped frame (302); a brake pad (304) for abutting and squeezing the brake disc (301) is connected to the mounting cylinder (303) via a connecting assembly; a hydraulic assembly for hydraulically driving the brake pad (304) is arranged inside the brake box (2); and a hydraulic oil bubble separation assembly for ensuring transmission is arranged on the hydraulic assembly.

2. The emergency brake assembly of a workover rig winch according to claim 1, characterized in that: The connecting assembly includes a first piston plate (401) slidably connected to the inside of the mounting cylinder (303), a transmission rod (402) slidably connected to the front end of the mounting cylinder (303), two ends of the transmission rod (402) are respectively fixed to the brake pad (304) and the first piston plate (401), and a spring (403) is sleeved on the outer side of the transmission rod (402).

3. The emergency brake assembly of a workover rig winch according to claim 2, characterized in that: The hydraulic assembly comprises a piston cylinder (501) installed inside a brake box (2), a second piston plate (502) being slidably connected to the piston cylinder (501), the piston cylinder (501) being communicated with two mounting cylinders (303) via two groups of delivery pipes (503), hydraulic oil is filled between the second piston plate (502) and the first piston plate (401), and a driving member for pushing the second piston plate (502) is provided on the outer side of the brake box (2).

4. The emergency brake assembly for a workover rig winch according to claim 3, characterized in that: The driving member is a cylinder (6) installed outside the brake box (2), and the output end of the cylinder (6) is fixed to the second piston plate (502).

5. The emergency brake assembly of a workover rig winch according to claim 4, characterized in that: An exhaust valve (7) for exhausting air is provided at the upper end of the piston cylinder (501).

6. The emergency brake assembly of a workover rig winch according to claim 5, characterized in that: The hydraulic oil bubble separation component comprises a mounting frame (801) fixed inside a piston cylinder (501), a driving shaft (802) being rotatably connected to the mounting frame (801), a plurality of cutters (803) for cutting and crushing bubbles inside the hydraulic oil being fixed on the driving shaft (802), a fan blade (804) being fixed at the upper end of the driving shaft (802), and the fan blade (804) being arranged in an inclined manner.

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