Remote automatic brake device of oil pumping unit and application method

Abstract

The invention relates to the technical field of brake equipment, in particular to a remote automatic brake device of an oil pumping unit and an application method.The remote automatic brake device is characterized in that a brake disc is fixedly connected with one end of a brake baffle, the other end of the brake baffle is fixedly connected with one end of a first extension rod, and the other end of the first extension rod is fixedly connected with one end of a special-shaped transmission part; the other end of the special-shaped transmission part is fixedly connected with one end of a second extension rod, the other end of the second extension rod is fixedly connected with one end of a third extension rod, and the other end of the third extension rod is fixedly connected with the output end of a manual / electric telescopic device through a telescopic shaft. And the fixed end of the manual / electric telescopic device is connected with the manual rotating wheel through a telescopic device extension shaft. Remote automatic control over brake of the pumping unit is achieved, the operation efficiency, safety and reliability are remarkably improved, the manual operation function is achieved, and the operation and maintenance cost and field risks are effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of braking equipment, and in particular, to a remote automatic braking device for a pumping unit and an application method thereof. Background Art

[0002] A pumping unit is a key power equipment widely used in the process of oil extraction. Its stable and efficient operation is directly related to the production efficiency of the oilfield. In the daily operation, maintenance and repair, emergency handling, and specific process requirements of the pumping unit, reliable braking or positioning of the crank is an essential operation link. At present, for the existing braking methods of pumping units, on the one hand, it largely relies on on-site manual operation, and it is necessary for the staff to reach the equipment site to manually apply or release the braking force. This not only has a slow response speed and cannot meet the timeliness requirements of emergency braking, but also in bad weather or remote areas, it is difficult for personnel to reach, increasing the operation cost and potential safety risks. On the other hand, traditional manual braking devices often lack an effective status feedback mechanism, and the remote control center cannot accurately know whether the brake has acted reliably or been completely released, which is prone to misjudgment or delay in subsequent operations, affecting production efficiency and equipment safety. Summary of the Invention

[0003] The purpose of the present invention is to provide a remote automatic braking device for a pumping unit and an application method thereof, which realizes the remote automatic control of the pumping unit braking, significantly improves the operation efficiency, safety and reliability, and has a manual operation function, effectively reducing the operation and maintenance cost and on-site risk.

[0004] The embodiments of the present invention are realized by the following technical solutions:

[0005] A remote automatic braking device for a pumping unit includes: a brake disc, a brake baffle, a first extension rod, a special-shaped transmission component, a third extension rod, a manual / electric telescopic device, a second extension rod, a telescopic device extension shaft, a manual runner, and a telescopic device fixed base;

[0006] The brake disc is fixedly connected to one end of the brake baffle, the other end of the brake baffle is fixedly connected to one end of the first extension rod, the other end of the first extension rod is fixedly connected to one end of the special-shaped transmission component, the other end of the special-shaped transmission component is fixedly connected to one end of the second extension rod, the other end of the second extension rod is fixedly connected to one end of the third extension rod, the other end of the third extension rod is fixedly connected to the output end of the manual / electric telescopic device through a telescopic shaft, and the fixed end of the manual / electric telescopic device is connected to the manual runner through the telescopic device extension shaft.

[0007] Optionally, it further includes: a first connecting and fixing member, a second connecting and fixing member, and a third connecting and fixing member; wherein, the other end of the brake baffle is fixedly connected to one end of the first extension rod through the first connecting and fixing member, the other end of the first extension rod is fixedly connected to one end of the special-shaped transmission member through the second connecting and fixing member, and the other end of the special-shaped transmission member is fixedly connected to one end of the second extension rod through the third connecting and fixing member.

[0008] Optionally, it further includes: a first extension rod adjusting bolt and a second extension rod adjusting bolt; wherein, the first extension rod adjusting bolt is arranged in the middle of the first extension rod for adjusting the length of the first extension rod, and the second extension rod adjusting bolt is arranged in the middle of the second extension rod for adjusting the length of the second extension rod.

[0009] Optionally, it further includes: a first base, a second base, and a third base; the top of one side of the third base is fixedly connected to the bottom of the second base, the third extension rod, the third connecting and fixing member, the second extension rod, the second extension rod adjusting bolt, and the telescopic shaft are all arranged inside the third base, the output end of the hand / electric telescopic device penetrates through the side wall of the third base and is fixedly connected to the other end of the third extension rod through the telescopic shaft, the other end of the special-shaped transmission member penetrates through the top of the third base and is fixedly connected to one end of the second extension rod, the top of the second base is fixedly connected to the top of the first base, and the first base is used to support and fix the brake disc and the brake baffle.

[0010] Optionally, it further includes a camera; the camera is installed on the top of the other side of the base for monitoring and recording the working state of the brake disc and judging whether the conditions for braking or releasing the brake are met around the pumping unit.

[0011] Optionally, the camera is fixedly connected to the top of the other side of the base through a camera telescopic device.

[0012] Optionally, a telescopic device fixing base is fixedly arranged on the top of one side of the base close to the hand / electric telescopic device, and the top of the telescopic device fixing base is fixedly connected to the bottom of the hand / electric telescopic device.

[0013] An application method of a remote automatic braking device for a pumping unit, which is applied to the remote automatic braking device for a pumping unit, includes a braking step and a brake release step. Among them, the braking step is specifically as follows:

[0014] Receive the braking instruction signal sent by the remote control system, and the hand / electric telescopic device drives its output end to move according to the braking instruction signal;

[0015] The movement of the output end of the manual / electric telescopic device is transmitted sequentially through the telescopic shaft, the third extension rod, the second extension rod, the special-shaped transmission component, and the first extension rod;

[0016] The movement of the first extension rod drives the brake baffle to move into contact with the brake disc, completing the braking operation on the pumping unit.

[0017] Optionally, the brake release step is specifically:

[0018] Receive the brake release command signal sent by the remote control system, and the manual / electric telescopic device drives the movement of its output end in the reverse direction according to the brake release command signal;

[0019] The reverse movement of the output end of the manual / electric telescopic device is transmitted sequentially through the telescopic shaft, the third extension rod, the second extension rod, the special-shaped transmission component, and the first extension rod;

[0020] The reverse movement of the first extension rod drives the brake baffle to move away from the brake disc, completing the brake release of the pumping unit.

[0021] Optionally, it further includes: by rotating the manual wheel, driving the manual / electric telescopic device to expand and contract through the extension shaft of the telescopic device, and then realizing manual braking or manual brake release through mechanical transmission.

[0022] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0023] On the one hand, in the embodiment of the present invention, by integrating the manual / electric telescopic device with a precise mechanical transmission chain, remote automatic precise control of the pumping unit brake is realized. The control center can quickly issue brake or brake release commands as needed, and the actuator responds quickly, greatly improving the timeliness and convenience of operation, significantly reducing the dependence on on-site manual intervention, and reducing the opportunity for personnel to be exposed to potential risk environments and related operation and maintenance costs. On the other hand, the device also takes into account practicality and emergency needs, and designs a manual wheel interface, so that in the special cases of power failure or the need for fine manual adjustment, local manual braking or brake release operations can still be conveniently carried out, ensuring the all-weather availability and flexibility of the device. Its structural design is compact and reasonable, the transmission is stable, and it is easy to integrate and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a remote automatic braking device for a pumping unit provided by an embodiment of the present invention;

[0025] Figure 2 It is a schematic flow chart of a braking method provided by an embodiment of the present invention;

[0026] Figure 3Schematic flowchart of the brake release method provided by the embodiments of the present invention. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. Components of the embodiments of the present invention generally described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0028] As Figure 1 shown, the present invention provides one of the embodiments: a remote automatic brake device for a pumping unit, including: a brake disc 1, a brake baffle 2, a first extension rod 4, a special-shaped transmission component 8, a third extension rod 9, a hand / electric telescopic device 10, a second extension rod 12, a telescopic device extension shaft 14, a manual runner 15, and a telescopic device fixing second first base;

[0029] One end of the brake disc 1 is fixedly connected to one end of the brake baffle 2, the other end of the brake baffle 2 is fixedly connected to one end of the first extension rod 4, the other end of the first extension rod 4 is fixedly connected to one end of the special-shaped transmission component 8, the other end of the special-shaped transmission component 8 is fixedly connected to one end of the second extension rod 12, the other end of the second extension rod 12 is fixedly connected to one end of the third extension rod 9, the other end of the third extension rod 9 is fixedly connected to the output end of the hand / electric telescopic device 10 through a telescopic shaft 20, and the fixed end of the hand / electric telescopic device 10 is connected to the manual runner 15 through the telescopic device extension shaft 14.

[0030] In this embodiment, the device mainly consists of a brake disc 1 and a brake baffle 2 that implement the braking function, as well as a driving and transmission mechanism. Specifically, the brake disc 1 serves as the braking foundation and forms a connection with one end of the brake baffle 2. The other end of the brake baffle 2 is connected to a carefully designed transmission chain that starts from the first extension rod 4. One end of the first extension rod 4 is connected to the brake baffle 2, and the other end is connected to a special-shaped transmission component 8. The special-shaped transmission component 8 is further connected to the second extension rod 12, and the other end of the second extension rod 12 is connected to the third extension rod 9. This transmission chain formed by sequentially connecting the first extension rod 4, the special-shaped transmission component 8, the second extension rod 12, and the third extension rod 9 is responsible for accurately transmitting the action of the actuator to the brake baffle 2. The driving force comes from the hand / electric telescopic device 10. Its output end is fixedly connected to the other end of the third extension rod 9 through the telescopic shaft 20, so that the entire transmission chain can be pushed or pulled through the telescopic action. The fixed end of the hand / electric telescopic device 10 is connected to the manual rotating wheel 15 through the telescopic device extension shaft 14. This enables the device to not only receive remote electrical signal commands for automatic telescoping to achieve remote braking or release of the brake, but also perform manual operations by rotating the manual rotating wheel 15 when needed. To ensure the stable installation and operation of the hand / electric telescopic device 10, a telescopic device fixing second first base is provided. In addition, the device also integrates a camera 18 for real-time monitoring of the working states of the brake disc 1 and the brake baffle 2 and feeding back visual information to the remote system, thus constituting a complete remote automatic braking solution including remote driving, precise transmission, state visualization, and manual / electric compatibility. It can be understood that the special-shaped transmission component 8 serves as a bridge, enabling the lower part of the device to push the upper part to achieve the braking action.

[0031] Furthermore, it also includes: a first connection fixing part 3, a second connection fixing part 7, and a third connection fixing part 11; wherein, the other end of the brake baffle 2 is fixedly connected to one end of the first extension rod 4 through the first connection fixing part 3, the other end of the first extension rod 4 is fixedly connected to one end of the special-shaped transmission component 8 through the second connection fixing part 7, and the other end of the special-shaped transmission component 8 is fixedly connected to one end of the second extension rod 12 through the third connection fixing part 11.

[0032] In implementation, to ensure the stability of the connection between the brake baffle 2 and the first extension rod 4, between the first extension rod 4 and the special-shaped transmission component 8, and between the special-shaped transmission component 8 and the second extension rod 12, as well as the reliability of torque transmission, the first connection fixing member 3, the second connection fixing member 7, and the third connection fixing member 11 are specifically provided in this embodiment. Specifically, the other end of the brake baffle 2 is not directly connected to the first extension rod 4, but through the introduction of the first connection fixing member 3 as a medium, the two are firmly fixed together, effectively preventing connection loosening or relative rotation. Similarly, between the other end of the first extension rod 4 and one end of the special-shaped transmission component 8, the fixed connection is also achieved through the second connection fixing member 7, ensuring the effective transmission of force between the two. Further, the other end of the special-shaped transmission component 8 and one end of the second extension rod 12 rely on the third connection fixing member 11 for fixation, completing the reliable connection between key components in the transmission chain. The use of connection fixing members significantly enhances the structural rigidity and connection strength of the entire transmission chain, ensuring that the action output from the hand / electric telescopic device 10 can be accurately and without energy loss transmitted to the final brake baffle 2, improving the accuracy of the braking action and the overall durability of the device.

[0033] In a further application of this embodiment, it further includes: a first extension rod adjusting bolt 5, a second extension rod adjusting bolt 13; wherein, the other end of the first extension rod 4 is fixedly connected to one end of the special-shaped transmission component 8 in sequence through the first extension rod adjusting bolt 5 and the second connection fixing member 7, and the other end of the second extension rod 12 is fixedly connected to one end of the third extension rod 9 through the second extension rod adjusting bolt 13.

[0034] During implementation, in order to further improve the adaptability of this device and the convenience of installation and debugging, this embodiment particularly introduces an adjustment mechanism. Specifically, the device further includes a first extension rod adjustment bolt 5 and a second extension rod adjustment bolt 13. In the connection structure of the transmission chain, the other end of the first extension rod 4 is fixedly connected to one end of the special-shaped transmission component 8, not simply completed through the second connection fixture 7, but by a more delicate method: the end of the first extension rod 4 is first connected through the first extension rod adjustment bolt 5, and then combined with the second connection fixture 7, and finally fixed to one end of the special-shaped transmission component 8. This design enables the effective connection length or relative position of the first extension rod 4 relative to the special-shaped transmission component 8 to be finely adjusted by adjusting the first extension rod adjustment bolt 5. Similarly, the fixed connection between the other end of the second extension rod 12 and one end of the third extension rod 9 is directly achieved through the second extension rod adjustment bolt 13. This means that the relative distance or total length between the second extension rod 12 and the third extension rod 9 can be conveniently changed by adjusting the second extension rod adjustment bolt 13. The introduction of these two adjustment bolts gives a certain length adjustability to the entire transmission chain, greatly facilitating the precise setting of the brake clearance during initial installation or compensating for possible wear during later use, ensuring that the braking system is always in the best working state.

[0035] Specifically, it further includes: a first base 16, a second base 17, and a third base 19; one side top of the third base 19 is fixedly connected to the bottom of the second base 17, the third extension rod 9, the third connection fixture 11, the second extension rod 12, the second extension rod adjustment bolt 13, and the telescopic shaft 20 are all arranged inside the third base 19, the output end of the hand / electric telescopic device 10 penetrates through the side wall of the third base 19 and is fixedly connected to the other end of the third extension rod 9 through the telescopic shaft 20, the other end of the special-shaped transmission component 8 penetrates through the top of the third base 19 and is fixedly connected to one end of the second extension rod 12, the top of the second base 17 is fixedly connected to the top of the first base 16, and the first base 16 is used to support and fix the brake disc 1 and the brake baffle 2.

[0036] In this embodiment, the first base 16, the second base 17, and the third base 19 form the overall support framework of the device: One side top of the third base 19 is fixedly connected to the bottom of the second base 7 to form a lower structure; while the top of the second base 17 is fixedly connected to the top of the first base 16 to form an upper support. Among them, the first base 16, as the topmost base, its main function is to directly support and firmly fix the core braking elements, namely the brake disc 1 and the brake baffle 2, to ensure their stable positions during operation. The lower third base 19 is ingeniously designed as a receiving space to accommodate and arrange some key components in the transmission chain, namely the third extension rod 9, the third connection fixing part 11 for connection, the second extension rod 12, the second extension rod adjusting bolt 13 for adjustment, and the telescopic shaft 20 connecting the actuator, all of which play a good role in protection and guidance. To achieve power input and output, the output end of the hand / electric telescopic device 10 is designed to penetrate the side wall of the third base 19, and then is fixedly connected to the other end of the third extension rod 9 accommodated inside through the telescopic shaft 20. At the same time, the connection of the transmission chain also penetrates the boundary of the base, and the other end of the special-shaped transmission part 8 can penetrate the top of the third base 19 and is fixedly connected to one end of the second extension rod 12 also located inside the third base 19. This layered integrated base design not only provides a solid installation foundation and structural stability for the entire device, but also effectively protects the internal transmission mechanism, ensuring the precise alignment and smooth operation of each component.

[0037] In this embodiment, it further includes a camera 18; The camera 18 is installed on the other side top of the third base 19 for monitoring and recording the working state of the brake disc 1. The camera 18 is fixedly connected to the other side top of the third base 19 through a camera telescopic device.

[0038] This embodiment integrates a camera 18. The camera 18 is installed on the other side top of the third base 19. This installation position is selected to ensure that the camera can have a clear and unobstructed view and directly focus on the core braking area.

[0039] As Figure 2 shown, the present invention also provides another embodiment: An application method of a remote automatic braking device for a pumping unit, which is applied to the remote automatic braking device for a pumping unit, including a braking step and a brake release step. Among them, the braking step is specifically as follows:

[0040] Receive the braking command signal sent by the remote control system, and the hand / electric telescopic device 10 drives its output end to move according to this braking command signal;

[0041] The movement of the output end of the manual / electric telescopic device 10 is transmitted sequentially through the telescopic shaft 20, the third extension rod 9, the second extension rod 12, the special-shaped transmission component 8, and the first extension rod 4;

[0042] The movement of the first extension rod 4 drives the brake baffle 2 to move into contact with the brake disc 1, completing the braking operation on the pumping unit.

[0043] As Figure 3 shown, the brake release step is specifically as follows:

[0044] Receive the brake release command signal sent by the remote control system, and the manual / electric telescopic device 10 drives the movement of its output end in the reverse direction according to this brake release command signal;

[0045] The reverse movement of the output end of the manual / electric telescopic device 10 is transmitted sequentially through the telescopic shaft 20, the third extension rod 9, the second extension rod 12, the special-shaped transmission component 8, and the first extension rod 4;

[0046] The reverse movement of the first extension rod 4 drives the brake baffle 2 to move away from the brake disc 1, completing the release of the brake on the pumping unit.

[0047] When performing the braking operation, the whole process starts with the brake command signal sent by the remote control system. After receiving this signal, the manual / electric telescopic device 10 is immediately activated, and its output end starts to move (for example, extend) according to the command requirements. This initial movement is precisely transmitted to the third extension rod 9 through the connected telescopic shaft 20. Subsequently, the movement is transmitted sequentially along the carefully designed transmission chain: from the third extension rod 9 to the second extension rod 12, then through the special-shaped transmission component 8, and finally to the first extension rod 4. The final movement of the first extension rod 4 directly drives the connected brake baffle 2 to move, making it come into reliable contact with the brake disc 1, thereby applying a braking force to the crank or related components of the pumping unit and completing the braking operation. Conversely, when it is necessary to release the brake, the remote control system sends a brake release command signal. After receiving this signal, the manual / electric telescopic device 10 drives the movement of its output end in the reverse direction (for example, retract). This reverse movement also passes through the telescopic shaft 20 and is transmitted reversely sequentially along the same transmission path - that is, the third extension rod 9, the second extension rod 12, the special-shaped transmission component 8, and the first extension rod 4. Finally, the reverse movement of the first extension rod 4 drives the brake baffle 2 to move, separating it from the state of contacting the brake disc 1, releasing the braking of the pumping unit and enabling it to operate freely. The entire braking and brake release process realizes the precise transmission of force and the execution of actions through this fixed mechanical transmission chain.

[0048] Specifically, it further includes: by rotating the manual runner 15, driving the hand / electric telescopic device 10 to extend and retract via the telescopic device extension shaft 14, and then realizing manual application of brakes or manual release of brakes through mechanical transmission.

[0049] This embodiment allows the operator to intervene in the braking system by directly rotating the manual runner 15. When the manual runner 15 is rotated, its rotational movement will be directly transmitted to the input end or the adjustment mechanism of the hand / electric telescopic device 10 via the connected telescopic device extension shaft 14. This rotational input is converted into a linear telescopic movement at the output end of the hand / electric telescopic device 10 by the internal mechanical structure (such as a lead screw nut mechanism) of the hand / electric telescopic device 10. The effect is the same as when receiving an electric signal drive, except that the power source becomes manual rotation. Subsequently, the telescopic displacement generated by the hand / electric telescopic device 10 is still accurately transmitted to the brake baffle 2 through the same mechanical transmission path, that is, the telescopic shaft 20, the third extension rod 9, the second extension rod 12, the special-shaped transmission component 8, and the first extension rod 4. According to the rotation direction and the number of turns of the manual runner 15, the operator can control the brake baffle 2 to approach the brake disc 1 and apply braking force (manual braking), or make it away from the brake disc 1 to release the braking (manual brake release). This manual operation mode provides a direct and reliable control means for on-site personnel and serves as an important supplement and backup for remote automatic control.

[0050] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A remote automatic braking device for a pumping unit, characterized in that Including: Brake disc (1), brake baffle (2), first extension rod (4), special-shaped transmission component (8), third extension rod (9), hand / electric telescopic device (10), second extension rod (12), telescopic device extension shaft (14), manual rotating wheel (15) and telescopic device fixed base (21); One end of the brake disc (1) is fixedly connected to one end of the brake baffle (2), the other end of the brake baffle (2) is fixedly connected to one end of the first extension rod (4), the other end of the first extension rod (4) is fixedly connected to one end of the special-shaped transmission component (8), the other end of the special-shaped transmission component (8) is fixedly connected to one end of the second extension rod (12), the other end of the second extension rod (12) is fixedly connected to one end of the third extension rod (9), the other end of the third extension rod (9) is fixedly connected to the output end of the hand / electric telescopic device (10) through a telescopic shaft (20), and the fixed end of the hand / electric telescopic device (10) is connected to the manual rotating wheel (15) through a telescopic device extension shaft (14).

2. The remote automatic braking device for pumping units according to claim 1, wherein Also including: First connection fixing piece (3), second connection fixing piece (7) and third connection fixing piece (11); wherein, the other end of the brake baffle (2) is fixedly connected to one end of the first extension rod (4) through the first connection fixing piece (3), the other end of the first extension rod (4) is fixedly connected to one end of the special-shaped transmission component (8) through the second connection fixing piece (7), and the other end of the special-shaped transmission component (8) is fixedly connected to one end of the second extension rod (12) through the third connection fixing piece (11).

3. The remote automatic braking device for pumping units according to claim 2, characterized in that, Also including: First extension rod adjusting bolt (5), second extension rod adjusting bolt (13); wherein, the first extension rod adjusting bolt (5) is arranged in the middle of the first extension rod (4) for adjusting the length of the first extension rod (4), and the second extension rod adjusting bolt (13) is arranged in the middle of the second extension rod (12) for adjusting the length of the second extension rod (12).

4. The remote automatic braking device for pumping units according to claim 3, characterized in that, Also including: First base (16), second base (17), third base (19); one side top of the third base (19) is fixedly connected to the bottom of the second base (17), the third extension rod (9), the third connection fixing piece (11), the second extension rod (12), the second extension rod adjusting bolt (13) and the telescopic shaft (20) are all arranged inside the third base (19), the output end of the hand / electric telescopic device (10) penetrates through the side wall of the third base (19) and is fixedly connected to the other end of the third extension rod (9) through the telescopic shaft (20), the other end of the special-shaped transmission component (8) penetrates through the top of the third base (19) and is fixedly connected to one end of the second extension rod (12), the top of the second base (17) is fixedly connected to the top of the first base (16), and the first base (16) is used to support and fix the brake disc (1) and the brake baffle (2).

5. The remote automatic braking device for pumping unit according to claim 4, characterized in that, It further includes a camera (18); the camera (18) is installed at the top of the other side of the third base (19) and is used to monitor and record the working state of the brake disc (1).

6. The remote automatic braking device for pumping units according to claim 4, characterized in that, The camera (18) is fixedly connected to the top of the other side of the third base (19) through a camera telescopic device.

7. The remote automatic braking device for pumping unit according to claim 6, wherein, A telescopic device fixed base (21) is fixedly arranged at the top of one side of the third base (19) close to the hand / electric telescopic device (10), and the top of the telescopic device fixed base (21) is fixedly connected to the bottom of the hand / electric telescopic device (10).

8. A method for applying an automatic remote braking device for a pumping unit, which is applied to the automatic remote braking device for a pumping unit according to any one of claims 1-7, characterized in that, It includes a braking step and a brake release step. Among them, the braking step is specifically as follows: Receive a braking command signal sent by the remote control system, and the hand / electric telescopic device (10) drives the movement of its output end according to this braking command signal. The movement of the output end of the hand / electric telescopic device (10) is sequentially transmitted through the telescopic shaft (20), the third extension rod (9), the second extension rod (12), the special-shaped transmission part (8), and the first extension rod (4). The movement of the first extension rod (4) drives the brake baffle (2) to move into contact with the brake disc (1), completing the braking operation on the pumping unit.

9. The application method of the remote automatic braking device for pumping units according to claim 8, characterized in that, The brake release step is specifically as follows: Receive a brake release command signal sent by the remote control system, and the hand / electric telescopic device (10) drives the reverse movement of its output end according to this brake release command signal. The reverse movement of the output end of the hand / electric telescopic device (10) is sequentially transmitted through the telescopic shaft (20), the third extension rod (9), the second extension rod (12), the special-shaped transmission part (8), and the first extension rod (4). The reverse movement of the first extension rod (4) drives the brake baffle (2) to move away from the brake disc (1), completing the brake release of the pumping unit.

10. The application method of the remote automatic braking device for the pumping unit according to claim 9, characterized in that, It further includes: By rotating the manual runner (15), the hand / electric telescopic device (10) is driven to extend and contract via the telescopic device extension shaft (14), and then manual braking or manual brake release is achieved through mechanical transmission.

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