Safety brake device of beam-pumping unit

Abstract

The utility model relates to the technical field of oil pumping units, in particular to a safety brake device of a beam-pumping unit, which comprises a base, the front of the base is rotatably connected with the back of an oil pumping mechanism, the inner wall of the base is movably clamped with the outer wall of a rotating mechanism, and the outer wall of the rotating mechanism is slidably connected with the inner wall of a brake mechanism. The bottom of the brake mechanism is connected with the top of the base, the bottom of the brake mechanism movably abuts against the top of the reset mechanism, the outer wall of the reset mechanism is movably connected with the inner wall of the base in a clamped mode, and the top of the rebound spring movably abuts against the bottom of the reset limiting plate. The bottom of the rebound spring is movably connected with the inner bottom wall of the reset rebound box in an abutting mode. According to the improved safety brake device, the rotating speed of the transmission belt is slowly reduced, the oil pumping unit is braked and decelerated, oil gas is prevented from being ignited due to overheating caused by metal structure braking, meanwhile, the brake pad is reset after braking, and the situation that a brake disc is abraded and the service life of the device is affected during normal work is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pumping unit, concretely is the beam -type pumping unit safety brake device. BACKGROUND

[0002] The beam -type pumping unit is a common oilfield equipment, is mainly used to the crude oil under the well is drawn to the ground. It is driven by motor, passes through the reduction gear and the connecting rod mechanism and is converted into the up and down motion of the horse head to the rotary motion, and then drives the plunger of the oil well pump to carry out the reciprocating motion, thereby realizes the oil pumping function, and the beam -type pumping unit safety brake device is a kind of equipment for ensuring that pumping unit can be quickly and safely stopped in emergency.

[0003] The inventor finds that the prior art has the following problems in the process of realizing the utility model:

[0004] 1, the existing beam -type pumping unit safety brake device when using, the speed of pumping unit is reduced by mechanical friction, and mechanical friction can produce spark, and there is the risk of igniting oil gas;

[0005] 2, the existing beam -type pumping unit safety brake device after using, brake disc needs manual reset, and manual reset exists the sealing box of not completely resetting, can lead to normal work wear brake pad, the service life of device is affected. UTILITY MODEL CONTENTS

[0006] The utility model discloses a beam -type pumping unit safety brake device to solve the problems in the background art. To achieve the above object, the utility model provides the following technical scheme: the beam -type pumping unit safety brake device, including base, the front of base and the back of pumping mechanism are connected, the inner wall of base and the outer wall of rotating mechanism are movably connected, the outer wall of rotating mechanism and the inner wall of brake mechanism are slidably connected, the bottom of brake mechanism and the top of base are connected, the bottom of brake mechanism and the top of reset mechanism are movably abutted, and the outer wall of reset mechanism and the inner wall of base are movably connected.

[0007] Further preferably, the base includes a base, a transmission assembly, a connecting plate and a motor mounting groove, the top of the left side of the base is movably connected with the bottom of the transmission assembly, and the transmission assembly includes two transmission fixed blocks, a transmission belt and a transmission turnover rod, the outer wall of the transmission turnover rod is rotatably connected with the inner wall of the bottom of the connecting plate, the left side of the base is provided with a motor mounting groove in the inside, and the top of the left side of the base is provided with a rotating through hole, and the top of the middle part of the base is provided with a rebound through hole.

[0008] Further preferably, the oil pumping mechanism comprises an oil pumping turnover plate, an oil pumping support column, an oil pumping connecting block and an oil pumping piston, the back surface of the bottom of the oil pumping turnover plate is rotationally connected with the front surface of the top of the connecting plate, and the outer wall of the middle part of the oil pumping turnover plate is rotationally connected with the inner wall of the top of the oil pumping support column, the right side of the oil pumping turnover plate is movably clamped with the left side of the oil pumping connecting block, and the bottom of the oil pumping connecting block is movably clamped with the top of the oil pumping piston.

[0009] Further preferably, the rotating mechanism comprises a motor mounting seat, a driving motor, a driving threaded rod, a driving threaded tube and two driving limiting plates, the outer wall of the motor mounting seat is movably clamped with the inner wall of the motor mounting groove, and the inner wall of the motor mounting seat is movably clamped with the outer wall of the driving motor, the top end of the driving motor is connected with the bottom end of the driving threaded rod through a shaft coupling, the outer wall of the top of the driving threaded rod is screw-connected with the inner wall of the driving threaded tube, and the outer side walls of the driving threaded tube are movably clamped with the opposite sides of the two driving limiting plates.

[0010] Further preferably, the brake mechanism comprises a fixed square tube, two fixed limiting grooves, a brake mounting plate, a brake disc, a brake turnover rod and two brake mounting blocks, the inner wall of the fixed square tube is provided with the two fixed limiting grooves, the inner walls of the two fixed limiting grooves are movably connected with the outer walls of the two driving limiting plates, the top of the fixed square tube is movably abutted with the bottom of the left side of the brake mounting plate, the top of the middle part of the brake mounting plate is movably clamped with the bottom of the brake disc, the front surface of the right side of the brake mounting plate is provided with a brake through hole, the inner wall of the brake through hole is rotationally connected with the outer wall of the brake turnover rod, the outer walls of the two ends of the brake turnover rod are rotationally connected with the inner walls of the two brake mounting blocks, and the bottom of the fixed square tube is movably clamped with the top of the base.

[0011] Further preferably, the reset mechanism comprises a reset connecting rod, a reset limiting plate, a reset rebound box and a rebound spring, the top of the reset connecting rod is movably abutted with the bottom of the right side of the brake mounting plate, the bottom end of the reset connecting rod is movably clamped with the top of the reset limiting plate, the outer wall of the reset limiting plate is slidably connected with the inner wall of the reset rebound box, the inner wall of the reset rebound box is movably sleeved with the inner wall of the rebound spring, and the outer wall of the reset rebound box is movably clamped with the inner wall of the rebound through hole.

[0012] Further preferably, the top of the rebound spring is movably abutted with the bottom of the reset limiting plate, and the bottom of the rebound spring is movably abutted with the inner bottom wall of the reset rebound box.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] The brake mechanism is arranged, pressure can be applied to the transmission belt for friction, so that the rotating speed of the transmission belt is slowly reduced, the pumping unit is braked and decelerated, and overheat caused by metal structure brake is avoided.

[0015] The reset mechanism is arranged, the brake pad after braking is reset, the brake disc is prevented from being abraded during normal work, and the service life of the device is affected. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view full disassembly structure schematic view of the utility model;

[0017] Figure 2 It is a whole structure schematic view of the utility model;

[0018] Figure 3 It is a base and pumping mechanism structure sectional view of the utility model;

[0019] Figure 4 It is a rotating mechanism structure sectional view of the utility model;

[0020] Figure 5 It is a brake mechanism structure sectional view of the utility model;

[0021] Figure 6 It is a reset mechanism structure sectional view of the utility model;

[0022] Figure 7 It is a base and pumping mechanism structure sectional view of the utility model; Figure 5 It is a structure schematic view of A place in the utility model.

[0023] In the drawing: 1, base; 101, base; 102, transmission assembly; 103, connecting plate; 104, motor installation groove; 2, pumping mechanism; 201, pumping turnover plate; 202, pumping support column; 203, pumping connecting block; 204, pumping piston; 3, rotating mechanism; 301, motor mounting seat; 302, driving motor; 303, driving threaded rod; 304, driving threaded tube; 305, driving limit plate; 4, brake mechanism; 401, fixed square tube; 402, fixed limit groove; 403, brake installation plate; 404, brake disc; 405, brake turnover rod; 406, brake installation block; 5, reset mechanism; 501, reset connecting rod; 502, reset limit plate; 503, reset rebound box; 504, rebound spring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of the present application.

[0025] Please refer to Figures 1 to 7 The present application provides a technical solution: a beam-pumping unit safety brake device, comprising a base 1, the front surface of the base 1 is rotationally connected with the back surface of a pumping unit 2, the inner wall of the base 1 is movably clamped with the outer wall of a rotating mechanism 3, the outer wall of the rotating mechanism 3 is slidably connected with the inner wall of a brake mechanism 4, the bottom of the brake mechanism 4 is connected with the top of the base 1, the bottom of the brake mechanism 4 movably abuts against the top of a reset mechanism 5, and the outer wall of the reset mechanism 5 is movably clamped with the inner wall of the base 1.

[0026] In the embodiment, as shown in Figure 1 , Figure 2 and Figure 3 , the base 1 comprises a base 101, a transmission assembly 102, a connecting plate 103 and a motor mounting groove 104, the top of the left side of the base 101 is movably clamped with the bottom of the transmission assembly 102, the transmission assembly 102 comprises two transmission fixed blocks, a transmission belt and a transmission turnover rod, the outer wall of the transmission turnover rod is rotationally connected with the inner wall of the bottom of the connecting plate 103, the motor mounting groove 104 is arranged in the left side of the base 101, the top of the left side of the base 101 is provided with a rotating through hole, and the top of the middle part of the base 101 is provided with a rebound through hole.

[0027] In the embodiment, as shown in Figure 1 , Figure 2 and Figure 3 , the pumping unit 2 comprises a pumping turnover plate 201, a pumping support column 202, a pumping connecting block 203 and a pumping piston 204, the back surface of the bottom of the pumping turnover plate 201 is rotationally connected with the front surface of the top of the connecting plate 103, the outer wall of the middle part of the pumping turnover plate 201 is rotationally connected with the inner wall of the top of the pumping support column 202, the right side of the pumping turnover plate 201 is movably clamped with the left side of the pumping connecting block 203, and the bottom of the pumping connecting block 203 is movably clamped with the top of the pumping piston 204.

[0028] In the embodiment, as shown in Figure 1 and Figure 4As shown, the rotating mechanism 3 comprises a motor mounting seat 301, a driving motor 302, a driving threaded rod 303, a driving threaded tube 304 and two driving limiting plates 305. The outer wall of the motor mounting seat 301 is movably connected with the inner wall of the motor mounting groove 104, and the inner wall of the motor mounting seat 301 is movably connected with the outer wall of the driving motor 302. The top end of the driving motor 302 is connected with the bottom end of the driving threaded rod 303 through a shaft coupling, and the outer wall of the top of the driving threaded rod 303 is threadedly connected with the inner wall of the driving threaded tube 304. The outer side walls of the driving threaded tube 304 are movably connected with the opposite sides of the two driving limiting plates 305, respectively. The driving motor 302 is started, and the rotating driving motor 302 drives the driving threaded rod 303 to rotate through the shaft coupling.

[0029] In this embodiment, as shown in Figure 1 、 Figure 2 、 Figure 5 and Figure 7 , the brake mechanism 4 comprises a fixed square tube 401, two fixed limiting grooves 402, a brake mounting plate 403, a brake disc 404, a brake turnover rod 405 and two brake mounting blocks 406. The inner wall of the fixed square tube 401 is provided with two fixed limiting grooves 402, respectively, and the inner walls of the two fixed limiting grooves 402 are movably connected with the outer walls of the two driving limiting plates 305, respectively. The top of the fixed square tube 401 movably abuts against the bottom of the left side of the brake mounting plate 403, and the top of the middle of the brake mounting plate 403 movably abuts against the bottom of the brake disc 404. The front surface of the right side of the brake mounting plate 403 is provided with a brake through hole, and the inner wall of the brake through hole is rotatably connected with the outer wall of the brake turnover rod 405. The outer walls of the two ends of the brake turnover rod 405 are rotatably connected with the inner walls of the two brake mounting blocks 406, respectively. The bottom of the fixed square tube 401 is movably connected with the top of the base 101. The driving threaded rod 303 rotates to drive the driving threaded tube 304 to move upward through the thread action and the limiting action of the fixed limiting groove 402. The driving threaded tube 304 moving upward drives the brake mounting plate 403 to overturn, and the brake mounting plate 403 overturning drives the brake disc 404 to move upward. The brake disc 404 moving upward can exert a friction force on the transmission belt, slowly reduce the rotating speed of the transmission belt, brake the pumping unit, and avoid that the metal brake causes overheating to ignite the oil gas.

[0030] In this embodiment, as shown in Figure 1 and Figure 6As shown, the reset mechanism 5 includes a reset link 501, a reset limiting plate 502, a reset rebound box 503 and a rebound spring 504, the top of the reset link 501 is movably abutted with the bottom of the right side of the brake mounting plate 403, and the bottom end of the reset link 501 is movably connected with the top of the reset limiting plate 502, the outer wall of the reset limiting plate 502 is slidably connected with the inner wall of the reset rebound box 503, and the inner wall of the reset rebound box 503 is movably sleeved with the inner wall of the rebound spring 504, the outer wall of the reset rebound box 503 is movably connected with the inner wall of the rebound through hole, after braking, the overturned brake mounting plate 403 drives the reset link 501 to move downward, the downward moving reset link 501 drives the reset limiting plate 502 to move downward, the downward moving reset limiting plate 502 can compress the rebound spring 504, and after the braking is completed, the brake mounting plate 403 is driven to move upward by the elastic action of the rebound spring 504, so that the brake mounting plate 403 can be reset, and the brake disc 404 can be prevented from being abraded during normal work.

[0031] In this embodiment, as shown in Figure 1 、 Figure 2 、 Figure 5 and Figure 7 , the top of the rebound spring 504 is movably abutted with the bottom of the reset limiting plate 502, and the bottom of the rebound spring 504 is movably abutted with the inner bottom wall of the reset rebound box 503.

[0032] The use method and advantages of the present utility model are as follows:

[0033] As shown in Figures 1 to 7 , first, the driving motor 302 is started, the rotating driving motor 302 drives the driving threaded rod 303 to rotate through the shaft coupling, the driving threaded rod 303 rotates to drive the driving threaded pipe 304 to move upward through the threaded action and the limiting action of the fixed limiting groove 402, the upward moving driving threaded pipe 304 drives the brake mounting plate 403 to overturn, the overturning brake mounting plate 403 drives the brake disc 404 to move upward, the upward moving brake disc 404 can apply friction force to the transmission belt, slowly reduces the rotating speed of the transmission belt, brakes the oil pumping unit, and avoids that the metal brake causes overheat to ignite oil gas, after braking, the overturned brake mounting plate 403 drives the reset link 501 to move downward, the downward moving reset link 501 drives the reset limiting plate 502 to move downward, the downward moving reset limiting plate 502 can compress the rebound spring 504, and after the braking is completed, the brake mounting plate 403 is driven to move upward by the elastic action of the rebound spring 504, so that the brake mounting plate 403 can be reset, and the brake disc 404 can be prevented from being abraded during normal work.

[0034] The basic principle, main features and advantages of the present application are shown and described above. The technical personnel in the industry should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A safety brake device for beam-pumping unit, comprising a base (1), characterized in that: The front surface of the base (1) is rotationally connected with the back surface of the oil pumping mechanism (2), the inner wall of the base (1) is movably clamped with the outer wall of the rotating mechanism (3), the outer wall of the rotating mechanism (3) is slidably connected with the inner wall of the brake mechanism (4), the bottom of the brake mechanism (4) is connected with the top of the base (1), the bottom of the brake mechanism (4) is movably abutted with the top of the reset mechanism (5), and the outer wall of the reset mechanism (5) is movably clamped with the inner wall of the base (1).

2. The beam-pumping unit safety brake device according to claim 1, characterised in that: The base (1) comprises a base (101), a transmission assembly (102), a connecting plate (103) and a motor mounting groove (104), the top of the left side of the base (101) is movably clamped with the bottom of the transmission assembly (102), and the transmission assembly (102) comprises two transmission fixed blocks, a transmission belt and a conveying and overturning rod, the outer wall of the conveying and overturning rod is rotationally connected with the inner wall of the bottom of the connecting plate (103), the left side of the base (101) is internally provided with the motor mounting groove (104), and the top of the left side of the base (101) is provided with a rotating through hole, and the top of the middle part of the base (101) is provided with a rebound through hole.

3. The beam-pumping unit safety brake device according to claim 2, characterised in that: The oil pumping mechanism (2) comprises an oil pumping overturning plate (201), an oil pumping support column (202), an oil pumping connecting block (203) and an oil pumping piston (204), the back surface of the bottom of the oil pumping overturning plate (201) is rotationally connected with the front surface of the top of the connecting plate (103), and the outer wall of the middle part of the oil pumping overturning plate (201) is rotationally connected with the inner wall of the top of the oil pumping support column (202), the right side of the oil pumping overturning plate (201) is movably clamped with the left side of the oil pumping connecting block (203), and the bottom of the oil pumping connecting block (203) is movably clamped with the top of the oil pumping piston (204).

4. The beam-pumping unit safety brake device according to claim 2, characterised in that: The rotating mechanism (3) comprises a motor mounting seat (301), a driving motor (302), a driving threaded rod (303), a driving threaded tube (304) and two driving limiting plates (305), the outer wall of the motor mounting seat (301) is movably clamped with the inner wall of the motor mounting groove (104), and the inner wall of the motor mounting seat (301) is movably clamped with the outer wall of the driving motor (302), the top end of the driving motor (302) is connected with the bottom end of the driving threaded rod (303) through a shaft coupling, the outer wall of the top of the driving threaded rod (303) is threadedly connected with the inner wall of the driving threaded tube (304), and the outer side walls of the driving threaded tube (304) are movably clamped with the opposite sides of the two driving limiting plates (305) respectively.

5. The beam-pumping unit safety brake device according to claim 4, characterised in that: The brake mechanism (4) comprises a fixed square tube (401), two fixed limiting grooves (402), a brake mounting plate (403), a brake disc (404), a brake turnover rod (405) and two brake mounting blocks (406), the inner wall of the fixed square tube (401) is respectively provided with two fixed limiting grooves (402), and the inner walls of the two fixed limiting grooves (402) are respectively movably connected with the outer walls of the two drive limiting plates (305), the top of the fixed square tube (401) movably abuts against the bottom of the left side of the brake mounting plate (403), the top of the middle part of the brake mounting plate (403) movably clamps the bottom of the brake disc (404), the front surface of the right side of the brake mounting plate (403) is provided with a brake through hole, the inner wall of the brake through hole is rotationally connected with the outer wall of the brake turnover rod (405), the outer walls of the two ends of the brake turnover rod (405) are respectively rotationally connected with the inner walls of the two brake mounting blocks (406), and the bottom of the fixed square tube (401) movably clamps the top of the base (101).

6. The beam-pumping unit safety brake device according to claim 5, characterised in that: The reset mechanism (5) comprises a reset connecting rod (501), a reset limiting plate (502), a reset rebound box (503) and a rebound spring (504), the top of the reset connecting rod (501) movably abuts against the bottom of the right side of the brake mounting plate (403), the bottom end of the reset connecting rod (501) movably clamps the top of the reset limiting plate (502), the outer wall of the reset limiting plate (502) is slidably connected with the inner wall of the reset rebound box (503), the inner wall of the reset rebound box (503) movably sleeves the inner wall of the rebound spring (504), and the outer wall of the reset rebound box (503) movably clamps the inner wall of the rebound through hole.

7. The beam-pumping unit safety brake device according to claim 6, characterised in that: The top of the rebound spring (504) movably abuts against the bottom of the reset limiting plate (502), and the bottom of the rebound spring (504) movably abuts against the inner bottom wall of the reset rebound box (503).

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