Emergency brake device for a tower pump jack

Abstract

The application discloses an emergency brake device of a tower type oil pumping machine and relates to the technical field of oil exploitation equipment. The device comprises a base, the upper end surface of the base is provided with a plurality of positioning frames, the side of the two positioning frames on the same side is jointly provided with a cladding plate, the upper end surface of the base is fixedly connected with two symmetrically arranged rotating frames, the rotating frame is rotationally connected with a brake arm, the brake arm is provided with a pin shaft, the side wall of the pin shaft is provided with two symmetrically arranged connecting frames, the side of the connecting frame is fixedly connected with a brake pad, the device has the advantages that the device is convenient to install and disassemble, the maintenance cost and the maintenance difficulty are greatly reduced, the device has the effects of simple structure and convenient maintenance, the adaptability of the device to various working environments is improved, the working efficiency and the safety are improved, the device can be quickly braked and reset in an emergency, the safe operation of the tower type oil pumping machine is effectively ensured, and the device has the effects of flexible adjustment, strong adaptability, quick response and reliable braking.

Description

Technical Field

[0001] This invention relates to the field of oil extraction equipment technology, and in particular to an emergency braking device for tower pumping units. Background Technology

[0002] In the oil extraction process, tower pumping units are one of the key pieces of equipment; however, existing emergency braking devices for tower pumping units have some shortcomings: Some braking devices have complex structures, high maintenance costs, and slow response speed in emergency situations, making them unable to brake quickly and effectively. This may lead to damage to pumping unit components or even safety accidents. In addition, some braking devices are not flexible enough to adapt to braking requirements under different working conditions, reducing the efficiency and safety of the equipment. Therefore, it is of great significance to develop a tower pumping unit emergency braking device that is simple in structure, responds quickly, is flexible in adjustment, and has high reliability. Summary of the Invention

[0003] The purpose of this invention is to solve the problems in the background art, and to propose an emergency braking device for a tower pumping unit.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An emergency braking device for a tower pumping unit includes a base. Multiple positioning frames are provided on the upper surface of the base. Two positioning frames on the same side share a common fitting plate. Two symmetrically arranged rotating frames are fixedly connected to the upper surface of the base. A brake arm is rotatably connected within each rotating frame. A pin is provided within each brake arm. Two symmetrically arranged connecting frames are provided on the side wall of the pin. A brake pad is fixedly connected to one side of each connecting frame. A traction mechanism for pulling the brake arm is provided between the two brake arms. A propulsion mechanism for moving and advancing the brake pad is provided on one side of the brake arm. A drive mechanism for resetting and pushing the brake arm is provided on the upper surface of the base.

[0005] In the emergency braking device of the aforementioned tower pumping unit, the traction mechanism includes two fixed plates fixedly connected to both sides of the brake arm. Two grooves are provided on one side of each fixed plate. A connecting rod and a reset rod are provided through the multiple fixed plates on both sides. Adjusting nuts are threaded to the side walls of the connecting rod and the reset rod. The adjusting nuts are in contact with and abut against the fixed plates.

[0006] In the emergency braking device of the aforementioned tower pumping unit, the propulsion mechanism includes two rotating frames that are fixedly connected to one end of the connecting rod and the reset rod, respectively. One side of the rotating frame is rotatably connected to two abutment plates. One side of the two abutment plates is fixedly connected to a rotating frame. One side of the rotating frame is fixedly connected to a rotating handle. The abutment plates abut against the fixed plate on one side.

[0007] In the emergency braking device of the aforementioned tower pumping unit, the drive mechanism includes an eccentric wheel rotatably connected to the rotating frame on the other side, an electric push rod rotatably connected inside the eccentric wheel, a push rod driver fixedly connected to the lower end face of the electric push rod, a fixed seat fixedly connected to the upper end face of the base, and the push rod driver rotatably connected inside the inner fixed seat.

[0008] In the emergency braking device of the tower pumping unit described above, two positioning blocks are fixedly connected to both sides of the brake arm, and the positioning blocks cooperate with the connecting frame.

[0009] In the emergency braking device of the aforementioned tower pumping unit, a return spring is sleeved on the side wall of the return rod, and the two ends of the return spring respectively contact and abut against the two fixed plates on both sides.

[0010] Compared with existing technologies, the advantages of this invention are: 1. The present invention features a simple layout consisting of a base, positioning frame, bonding plate, rotating frame, brake arm, pin, connecting frame, brake pad, and clearly structured traction, propulsion, and drive mechanisms. This makes the connection relationship of each component of the emergency braking device clear at a glance, facilitating installation and disassembly, reducing maintenance costs and repair difficulty, and achieving the effect of simple structure and convenient maintenance. 2. This invention is equipped with a traction mechanism and a propulsion mechanism, which enables flexible adjustment of braking force and brake pad position to meet the needs of different working conditions, enhance the adaptability of the equipment to various working environments, and improve work efficiency and safety. At the same time, the rationally arranged drive mechanism, in conjunction with the traction and propulsion mechanism, ensures rapid braking and reset in emergency situations, effectively guaranteeing the safe operation of the tower pumping unit. Attached Figure Description

[0011] Figure 1 This is a schematic front view of the emergency braking device for the tower pumping unit proposed in this invention. Figure 2 This is a side view of the emergency braking device for the tower pumping unit proposed in this invention. Figure 3 This is a schematic diagram of the bottom plate structure of the emergency braking device for the tower pumping unit proposed in this invention; Figure 4 This is a schematic diagram of the bottom structure of the emergency braking device for the tower pumping unit proposed in this invention; Figure 5 This is a schematic diagram of the reset rod structure of the emergency braking device for the tower-type pumping unit proposed in this invention.

[0012] In the diagram: 1. Base; 2. Positioning frame; 3. Adhesive plate; 4. Rotating frame; 5. Brake arm; 6. Pin; 7. Connecting frame; 8. Brake pad; 9. Positioning block; 10. Rotating frame; 11. Rotating handle; 12. Fixing plate; 13. Waist groove; 14. Connecting rod; 15. Support plate; 16. Fixing frame; 17. Reset rod; 18. Reset spring; 19. Fixing seat; 20. Push rod driver; 21. Electric push rod; 22. Eccentric wheel; 23. Adjusting nut. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] Reference Figures 1-5 An emergency braking device for a tower pumping unit includes a base 1. The upper surface of the base 1 is provided with multiple positioning frames 2. Two positioning frames 2 on the same side are provided with a fitting plate 3 on one side. Two symmetrically arranged rotating frames 4 are fixedly connected to the upper surface of the base 1. A brake arm 5 is rotatably connected inside the rotating frame 4. A pin 6 is provided inside the brake arm 5. Two symmetrically arranged connecting frames 7 are provided on the side wall of the pin 6. Two positioning blocks 9 are fixedly connected to both sides of the brake arm 5. The positioning blocks 9 cooperate with the connecting frames 7. Two symmetrically arranged threaded holes are opened on one side of the positioning block 9. An adjusting screw is connected to the threaded hole.

[0015] A brake pad 8 is fixedly connected to one side of the connecting frame 7. A traction mechanism for pulling the brake arms 5 is provided between the two brake arms 5. The traction mechanism includes two fixed plates 12 fixedly connected to both sides of the brake arms 5. Two grooves 13 are opened on one side of the fixed plates 12. A connecting rod 14 and a reset rod 17 are arranged through the multiple fixed plates 12 on both sides. A reset spring 18 is sleeved on the side wall of both the reset rod 17 and the connecting rod 14. The two ends of the reset spring 18 contact and abut against the two fixed plates 12 on both sides. An adjusting nut 23 is threadedly connected to the side wall of both the connecting rod 14 and the reset rod 17. The adjusting nut 23 contacts and abuts against the fixed plate 12. The connecting rod 14 and the reset rod 17 have the same structure and function. The difference is that they are installed in different directions and have different driving forces.

[0016] Among them, such as Figure 1The two brake pads 8 shown are connected to a braking structure. Both manual and electric braking of the two brake pads 8 are achieved by contacting and abutting against the braking structure. One brake arm 5 is provided with a propulsion mechanism for moving and advancing the brake pads 8. The propulsion mechanism includes two fixed brackets 16, which are respectively fixedly connected to one end of the connecting rod 14 (manual drive) and the reset rod 17 (electric drive). One fixed bracket 16 is rotatably connected to two abutment plates 15. A rotating frame 10 is fixedly connected to one side of the two abutment plates 15. A rotating handle 11 is fixedly connected to one side of the rotating frame 10. The abutment plates 15 abut against one fixed plate 12. The upper end face of the base 1 is provided with a drive mechanism for resetting and pushing the brake arm 5. The drive mechanism includes an eccentric wheel 22 rotatably connected to the other fixed bracket 16. An electric push rod 21 is rotatably connected inside the eccentric wheel 22. A push rod driver 20 is fixedly connected to the lower end face of the electric push rod 21. A fixed seat 19 is fixedly connected to the upper end face of the base 1. The push rod driver 20 is rotatably connected inside the inner fixed seat 19.

[0017] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art. The specific operation steps of this invention are as follows:

[0018] like Figure 1-5 As shown, during use, the positioning frame 2 and the bonding plate 3 are first installed on the base 1 to limit the swing angle of the brake arm 5 during its rotation within the rotating frame 4. Then, the brake arm 5 is installed in the rotating frame 4 via the pin 6. Simultaneously, the connecting frame 7 is installed on both sides of the brake arm 5 via the pin 6. The adjusting screw threaded onto the positioning block 9 can be rotated to adjust the extension length of the connecting frame 7, thereby adjusting the rotation range of the connecting frame 7 and thus the operating angle of the brake pad 8. Under the traction of the connecting rod 14, the distance between the left and right brake arms 5 can be determined. Simultaneously, the positioning position of the two brake arms 5 can be adjusted by rotating the adjusting nut 23, thus adjusting the distance between the two brake pads 8. When braking is required, the power to the push rod driver 20 is disconnected. At this time, the electric push rod 21 retracts, causing the eccentric wheel 22 to swing downwards, pushing... Figure 1 The left brake arm 5 swings clockwise to the right, pulling and rotating, simultaneously causing the rotating frame 10 and the abutment plate 15 to contact and abut against the fixed plate 12. At this time, due to the arc-shaped structure of the abutment plate 15 (which functions the same as the eccentric wheel 22), it can be pushed as... Figure 1The brake arm 5 on the right side swings to the left (during this process, both the abutment plate 15 and the eccentric wheel 22 rotate and are connected to the fixing frame 16). At this time, the brake pads 8 on both sides come closer together, and the braking effect is achieved by contacting and pressing against each other. When it is necessary to release the brake, the rotating frame 10 is rotated to reset. Under the push of the two reset springs 18 on the connecting rod 14 and the reset rod 17, the right brake arm 5 can be driven to swing back to reset. At the same time, the push rod driver 20 is energized, and the electric push rod 21 drives the eccentric wheel 22 to rotate clockwise. At this time, the contact push on the left brake arm 5 is released, thus completing the process of releasing the brake. In addition, when the handle 11 is pulled upwards to rotate the rotating frame 10, the two brake arms 5 are clamped together, which can complete the manual braking action alone, or the more reliable braking action of dual brakes.

[0019] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An emergency braking device for a tower pumping unit, comprising a base (1), characterized in that, The upper surface of the base (1) is provided with multiple positioning frames (2). Two positioning frames (2) on the same side are provided with a bonding plate (3) on one side. Two symmetrically arranged rotating frames (4) are fixedly connected to the upper surface of the base (1). A brake arm (5) is rotatably connected inside the rotating frame (4). A pin (6) is provided inside the brake arm (5). Two symmetrically arranged connecting frames (7) are provided on the side wall of the pin (6). A brake pad (8) is fixedly connected to one side of the connecting frame (7). A traction mechanism for pulling the brake arm (5) is provided between the two brake arms (5). A propulsion mechanism for moving and pushing the brake pad (8) is provided on one side of the brake arm (5). A drive mechanism for resetting and pushing the brake arm (5) is provided on the upper surface of the base (1).

2. The emergency braking device for the tower pumping unit according to claim 1, characterized in that, The traction mechanism includes two fixed plates (12) fixedly connected to both sides of the brake arm (5). Two waist grooves (13) are opened on one side of the fixed plate (12). A connecting rod (14) and a reset rod (17) are provided through the multiple fixed plates (12) on both sides. An adjusting nut (23) is threadedly connected to the side wall of the connecting rod (14) and the reset rod (17). The adjusting nut (23) contacts and abuts against the fixed plate (12).

3. The emergency braking device for the tower pumping unit according to claim 2, characterized in that, The propulsion mechanism includes two fixed frames (16) respectively fixedly connected to one end of the connecting rod (14) and the reset rod (17). One fixed frame (16) is rotatably connected to two abutment plates (15). A rotating frame (10) is fixedly connected to one side of the two abutment plates (15). A rotating handle (11) is fixedly connected to one side of the rotating frame (10). The abutment plates (15) abut against the fixed plate (12) on one side.

4. The emergency braking device for the tower pumping unit according to claim 1, characterized in that, The drive mechanism includes an eccentric wheel (22) rotatably connected to the fixed frame (16) on the other side, an electric push rod (21) rotatably connected inside the eccentric wheel (22), a push rod driver (20) fixedly connected to the lower end face of the electric push rod (21), a fixed seat (19) fixedly connected to the upper end face of the base (1), and the push rod driver (20) rotatably connected inside the fixed seat (19).

5. The emergency braking device for the tower pumping unit according to claim 1, characterized in that, Two positioning blocks (9) are fixedly connected to both sides of the brake arm (5). The positioning blocks (9) cooperate with the connecting frame (7). Two symmetrically arranged threaded holes are opened on one side of the positioning block (9), and an adjusting screw is connected to the internal thread of the thread.

6. The emergency braking device for a tower pumping unit according to claim 2, characterized in that, The side walls of the reset rod (17) and the connecting rod (14) are both fitted with reset springs (18), and the two ends of the reset springs (18) are respectively in contact with and abut against the two fixing plates (12) on both sides.

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