Portable brake auxiliary locking device of oil pumping unit

Abstract

The utility model relates to a portable brake auxiliary locking device of an oil pumping unit, which is provided with a clamping jaw I, a clamping jaw II, a sliding guide rail and a clamping lead screw, a clamping thread I and a clamping thread II which are opposite in rotation direction are arranged outside the clamping lead screw, and a force application part is arranged at one end of the clamping lead screw; a brake hoop clamping groove is formed in the inner side of the second clamping jaw, and a clamping clamping groove is formed in the inner side of the first clamping jaw. One of the clamping jaw I and the clamping jaw II is fixedly connected with the sliding guide rail, and the other one is movably connected with the sliding guide rail through a sliding pin; the first clamping jaw and the second clamping jaw are in threaded connection with the clamping lead screw through the first clamping thread and the second clamping thread correspondingly. The device is mainly applied to an external embracing type brake device of a beam-pumping unit, and the phenomenon that a brake wheel in the brake device is loosened is prevented. All negative effects caused by failure of the brake device can be eradicated, the existing brake device does not need to be transformed, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to an auxiliary locking tool for a brake device of an oil pumping unit, in particular to a portable brake auxiliary locking device of the oil pumping unit. Background Art

[0002] In oil production, the pumping unit cooperates with the sucker rod, pump and other related equipment to extract the underground crude oil to the surface. The pumping unit is powered by an electric motor, which converts the high-speed rotation of the motor into the low-speed rotation of the pumping unit crank through the reduction gear box, and the crank, connecting rod and walking beam mechanism of the pumping unit convert the rotational motion into the up and down reciprocating motion of the pumping unit donkey head, which drives the deep well pump to work through the suspension rope assembly to extract the crude oil to the surface.

[0003] In the process of crude oil extraction and production, there are many construction operations that need to be performed on the pumping unit, such as adjusting the extraction parameters of the oil well, adjusting the position of the pumping unit when the downhole oil production equipment is lifted and lowered, etc. At the same time, the pumping unit itself will also be worn, and parts will be replaced and repaired, which often needs to be performed on the pumping unit. During the maintenance and construction operations, the donkey head of the pumping unit must be stopped at the appropriate position according to the needs of the site, but the huge weight of the balance block that ensures the balance of the pumping unit is in an unbalanced state, driving the walking beam of the pumping unit to swing. This requires the use of the pumping unit's own brake device to control the parking angle of the walking beam and the donkey head of the pumping unit to ensure the safety of the construction workers on the ground around the pumping unit and the construction workers on the pumping unit body.

[0004] There are many types and models of pumping units. The most commonly used pumping unit is the beam pumping unit, and the 10-type and 12-type pumping units are the most commonly used. The brake device is an external brake device, which is installed at the end of the shoe shaft of the beam pumping unit reduction gearbox. The brake device consists of a brake wheel, a half brake hoop on each side, a brake pad, a fixing bolt, an adjustment bolt, and a spring. It is linked with the handle brake device to achieve the locking of the brake hoop on the brake wheel and the braking action.

[0005] Due to the aging and wear of brake pads in long-term use and the inadequate maintenance of the entire brake system, brake failure is easy to occur, and the rotation of the pump pulley and the donkey head often occurs, which can easily cause squeezing and collision to the construction personnel and cause safety accidents. From a safety perspective, the brake system of the pump itself is only a working brake and cannot be used as a dead brake or locking device with safety guarantees. Therefore, it is very necessary to install an auxiliary dead brake or locking device for the external brake device of the walking beam pump. Because in the process of crude oil extraction, various construction operations are frequently carried out on the pump and the surrounding ground. Any construction must prevent personal injury accidents and equipment damage accidents caused by the failure of the pump's own brake device and the rotation of the pump. Ensuring the safety of operators is an important issue in oilfield safety production.

[0006] In order to overcome the safety defects of the above-mentioned old-style oil pumps, the manufacturers of oil pumps have modified the existing brake devices for the oil pumps, added safety protection devices to the brake devices, and launched various modification measures, such as: sliding bar safety brakes, walking beam oil pump brake protection devices, etc.

[0007] 1. Sliding bar type safety brake This device is composed of a fixed cover and a sliding bar. The sliding bar can move left and right in the fixed cover and is installed at the rear end of the pumping unit reduction box. For a normally operating pumping unit, the sliding bar moves to the right without affecting the rotation of the large pulley. After the pumping unit stops at the specified position, move the sliding bar to the left and insert it between the spokes of the large pulley. The sliding bar blocks the spokes to ensure that the pumping unit will not rotate, thus playing a safety protection role. The advantages are: safe and reliable. The disadvantages are: a set of safety brakes must be installed on each pumping unit, and the unit needs to be shut down and production stopped during the installation process. At the same time, the processing and installation cost of the device is about 1,000 yuan / set, and the installation and transformation costs are relatively high.

[0008] 2. Brake protection device for beam pumping units

[0009] The device consists of three parts: the first is the lock plate device, which is installed on the large pulley of the oil pump; the second is the lock pin device, which is installed on the end cover of the input shaft of the reduction box; and the third is the telescopic handle safety device, which is installed next to the brake device of the oil pump. In a normally operating oil pump, the lock pin moves backward and does not affect the rotation of the large pulley. After the oil pump stops at the specified position, the lock pin is moved forward by pushing the telescopic handle and inserted into the lock plate to ensure that the oil pump will not rotate, which plays a safety protection role. The advantages are: safe and reliable, and the operator can control the safety brake while standing on the ground. The disadvantages are: each oil pump must be installed with a set of safety brakes, and the machine needs to be shut down and production stopped during the installation process. The purchase and installation cost of the device is about 5,000 yuan / set, and the installation and transformation costs are too high.

[0010] 3. Gear pumping unit brake protection device

[0011] The device consists of four parts. The first is the toothed disc device, which is installed on the output shaft of the oil pumping unit reduction box and welded to the brake wheel. The second is the crescent tooth device, which is installed above the toothed disc, one end of which is connected to the brake shoe shaft of the reduction box, and the other end is connected to the longitudinal connecting rod. The third is the guide device, one end of which is connected to the longitudinal connecting rod and the other end is connected to the transverse connecting rod. The fourth is the locking device, which is equipped with a rotating locking mechanism. The crescent teeth are engaged or released with the toothed disc by rotating the handle forward and reverse. The advantages are: safe and reliable, and the operator can control the safety brake while standing on the ground. The disadvantages are: each oil pumping unit must be installed with a set of safety brakes, and the unit needs to be shut down and production stopped during the installation process. The purchase and installation cost of the device is about 3,000 yuan / set, and the installation and modification costs are relatively high.

[0012] In order to solve the above problems, the on-site operators have done a lot of work and achieved certain results. After searching, the following related technologies were also found:

[0013] 1. Chinese patent application number CN202320248487.X discloses an auxiliary brake protection device for an oil pump, which relates to the technical field of brake auxiliary devices for oil pumps, and includes a dead brake pad, a brake hook, a multi-link mechanism, a brake handle and a locking disk. The outer edge of the dead brake pad is provided with a uniform brake groove, the upper end of the brake hook is rotatably connected to the oil pump, the lower part of the brake hook is provided with a clamping block for inserting into the brake groove, the lower end of the brake hook is hinged to the upper end of the multi-link mechanism, and the lower end of the multi-link mechanism is hinged to the brake handle; the top section of the multi-link mechanism is provided with an elastic telescopic buffer; the above utility model solves the problem that the two-way fixed dead brake requires workers to approach the oil pump to operate, which poses a safety hazard, and provides a brake auxiliary device for an oil pump that is easy to operate and has higher reliability of the two-way dead brake.

[0014] The above-mentioned auxiliary brake protection device for the oil pump is a fixed dead brake installed on the oil pump, which effectively solves the problem that the oil pump has no dead brake. The main defect is that the structure is relatively complicated and one needs to be installed on each oil pump, which increases the production cost.

[0015] 2. Chinese patent application number CN202121787842.8 discloses an automatic brake device for a walking beam oil pump, comprising a square shell with an opening at the front end, a turntable rotatably connected to the upper side of the rear wall of the shell cavity, a motor connected to the turntable, a limit switch installed at the upper end of the shell cavity and electrically connected to the motor, and a touch block installed on the right side of the upper end of the turntable that can touch the limit switch to cut off the power of the motor. It also includes an energy storage mechanism that generates elastic potential energy by rotating the turntable, a locking mechanism that can lock the energy storage mechanism after storing elastic potential energy using the principle of a lever, and an electromagnetic mechanism that can push the locking mechanism to release the elastic potential energy of the energy storage mechanism when the power is off. The energy storage mechanism after releasing the elastic potential energy can tighten the brake pull rod of the oil pump to form power-off protection.

[0016] The above-mentioned automatic brake device for a walking beam oil pump controls the brake through a circuit, and can use the lever principle to tighten the brake rod of the oil pump, and the effect can also achieve the expected purpose. The disadvantage is that the structure is relatively complex and the manufacturing and installation costs are high. Summary of the invention

[0017] In order to solve the above problems, the utility model provides a portable brake auxiliary locking device for an oil pump, which ensures that the brake device installed on one side of the reduction box is safer and more reliable without changing the structure of the original brake system of the oil pump, and prevents brake failure. It eliminates all adverse consequences caused by brake device failure, ensures the personal safety of on-site construction personnel, does not require modification of the existing brake device, and reduces production costs.

[0018] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable brake auxiliary locking device for an oil pump, comprising a clamping claw 1, a clamping claw 2, a sliding guide rail and a clamping screw, wherein: a clamping thread 1 and a clamping thread 2 with opposite rotation directions are arranged on the outside of the clamping screw and a force-applying component is installed at one end; a brake hoop clamping groove is arranged on the inner side of the clamping claw 2, and a clamping groove is arranged on the inner side of the clamping claw 1; one of the clamping claw 1 and the clamping claw 2 is fixedly connected to the sliding guide rail, and the other is movably connected to the sliding guide rail through a sliding pin; the clamping claw 1 and the clamping claw 2 are respectively threadedly connected to the clamping screw through the clamping thread 1 and the clamping thread 2.

[0019] Preferably, the clamping screw between the clamping thread 1 and the clamping thread 2 is not provided with threads.

[0020] Preferably, the force-applying component is a hand wheel, a handle or a force-applying rod; a wrench square is provided at the end of the clamping screw outside the force-applying component, and the wrench square can be connected to a ratchet wrench.

[0021] Preferably, the handwheel is connected to the clamping screw via a key and a groove, and a retaining spring is installed between the handwheel and the wrench.

[0022] Preferably, screw holes threadably connected to clamping thread one and clamping thread two are respectively provided in the main body above the clamping slot in jaw one and the brake hoop holding slot in jaw two, and the clamping screw is installed in the main body above the clamping slot in jaw one and jaw two and the brake hoop holding slot.

[0023] Preferably, the brake hoop clamping groove comprises a large brake hoop clamping groove and a small brake hoop clamping groove, and the small brake hoop clamping groove is in a convex shape after being connected with the large brake hoop clamping groove and is continuously arranged in the inner body of the second clamping claw from the inside to the outside.

[0024] Preferably, the clamping slot in the first clamping jaw and the brake hoop holding slot in the second clamping jaw are arranged correspondingly, and the width and depth of the clamping slot are consistent with those of the large brake hoop slot; the bottoms of the large brake hoop slot, the small brake hoop slot and the clamping slot are all provided with teeth, and the teeth in the brake hoop holding slot and the clamping slot are longitudinal teeth or transverse teeth.

[0025] Preferably, a track groove is provided at the lower end of the sliding guide rail, a sliding pin is provided at the upper end of the clamping claw 1 or the clamping claw 2, and the clamping claw 1 or the clamping claw 2 is movably connected to the sliding guide rail via the sliding pin.

[0026] Preferably, the upper end of the clamping claw one or the clamping claw two is fixedly connected to the sliding guide rail by a fixing bolt.

[0027] Preferably, the first and second claws in the brake auxiliary locking device are installed outside the brake hoop rib plate and inside the brake wheel spokes on one side of the oil pumping unit brake hoop shoe shaft.

[0028] Compared with the prior art, the utility model has the following significant effects: 1. The utility model comprises a first claw and a second claw as the embracing part of the pumping unit brake hoop, and the first claw and the second claw are both provided with teeth for increasing friction resistance. One claw hooks the inner side of the brake wheel, and the other claw holds the rib plate on the outer side of the brake hoop, and the force is applied by the force applying component to clamp the first claw and the second claw, thereby adding an auxiliary locking device to the existing pumping unit brake device.

[0029] 2. The utility model provides a clamping thread 1 and a clamping thread 2 with opposite rotation directions in the clamping screw, and connects two clamping claws together through the positive and negative thread segments in the clamping screw. By rotating the clamping screw, the two clamping claws are opened outward and clamped inward, which facilitates the installation and use of the tool.

[0030] 3. The utility model is provided with a force-applying component and a wrench square at one end of the clamping screw, and the wrench square can be connected with a ratchet wrench to improve the installation and removal speed of the tool. In order to ensure the clamping force of the tool on the pumping unit brake hoop, a wrench, a pipe clamp or a ratchet wrench can be used to force the clamping screw to rotate, so as to achieve the maximum clamping force of the tool and realize the first line of protection.

[0031] 4. In addition to using the clamping screw, the holding part and the force-applying component to increase the holding force, the utility model also takes advantage of the convenient installation position of the utility model, that is, the tool is installed near the brake hoop of the oil pump. Hoof shaft On one side. According to the parking position of the balance block in the oil pump and the direction in which the oil pump may rotate when the oil pump is stopped, the utility model is selectively installed on the left or right side close to the brake hoop shoe shaft of the oil pump, so that the brake hoop shoe shaft of the oil pump and the utility model can jointly inhibit the rotation of the brake wheel of the oil pump. Even if the brake device of the oil pump fails, the brake hoop is not tightly engaged, and the brake wheel rotates, the two claws connected to the clamping screw are blocked by the brake hoop shoe shaft, and the brake wheel in the brake device still cannot rotate, thus realizing the second line of protection and exerting and reflecting the absolute safety performance of the utility model.

[0032] The utility model is mainly used for the external brake device of the walking beam pumping unit to prevent the brake wheel in the brake device from loosening. For wells with light underground loads, the ground pumping unit only needs to be equipped with two balance blocks; for wells with heavy underground loads, the ground pumping unit needs to be equipped with four balance blocks. This tool was tested on a pumping unit with four balance blocks installed, proving that when the balance block on the pumping unit is the heaviest, it can also independently perform the braking task, and even if the brake device of the pumping unit is damaged and fails, it will not cause the pumping unit to rotate.

[0033] The utility model has the advantages of simple structure, easy to carry and quick installation. However, the most important thing about using the utility model is that it does not need to be installed on each oil pumping unit. It can be installed when in use and removed when not in use, which saves the safety modification cost for the shutdown and production suspension of the old oil pumping unit. The manufacturing cost of the tool is low, and each oil production team only needs one, which greatly saves the production cost. While saving the production cost, the construction safety of the operator is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0035] Figure 1 It is a front view of the structural schematic diagram of the present invention.

[0036] Figure 2 for Figure 1 Top view of the .

[0037] Figure 3 for Figure 1 Left view of .

[0038] Figure 4 for Figure 1 Right view of .

[0039] In the figure: claw one 1, claw two 2, large brake hoop slot 3, small brake hoop slot 4, clamping thread one 5, clamping thread two 6, force-applying component 7, retaining spring 8, wrench square 9, sliding guide rail 10, fixing bolt 11, sliding pin 12, clamping slot 13, clamping screw 14, and tooth 15. DETAILED DESCRIPTION

[0040] The accompanying drawings are for reference and illustration only and are not intended to limit the scope of protection of the present utility model. The technical solutions in the embodiments of the present utility model will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.

[0041] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0042] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0043] See also Figure 1 - Figure 4 A portable brake auxiliary locking device for an oil pumping unit is provided with a clamping claw 1, a clamping claw 2, a sliding guide rail 10 and a clamping screw 14, wherein: the clamping screw 14 is provided with a clamping thread 1 5 and a clamping thread 2 6 with opposite rotation directions on the outside and a force-applying component 7 is installed at one end; a brake hoop clamping groove is provided on the inner side of the clamping claw 2, and a clamping groove 13 is provided on the inner side of the clamping claw 1; one of the clamping claw 1 and the clamping claw 2 is fixedly connected to the sliding guide rail 10, and the other is movably connected to the sliding guide rail 10 through a sliding pin 12; the clamping claw 1 and the clamping claw 2 are respectively threadedly connected to the clamping screw 14 through the clamping thread 1 5 and the clamping thread 2 6.

[0044] The utility model has a simple structure, is compact and light, has a low manufacturing cost, can be carried around, and can ensure the personal safety of on-site construction personnel and the safety of the oil pumping unit equipment without modifying the brake device of the existing old oil pumping unit.

[0045] The clamping claw 2 with the clamping groove of the brake hoop and the clamping claw 1 with the clamping groove 13 are correspondingly installed on the outside of the clamping screw 14. The clamping claw 1 and the clamping claw 2 are both connected to the sliding guide rail 10. By rotating the force-applying component 7 installed at one end of the clamping screw 14, the clamping claw 1 and the clamping claw 2 can move in opposite directions along the clamping thread 1 5 and the clamping thread 2 6 on the outside of the clamping screw 14, respectively, to realize the opening installation and clamping locking functions between the clamping claw 1 and the clamping claw 2.

[0046] The clamping claw 1 with the clamping groove 13 and the clamping claw 2 with the brake hoop clamping groove are respectively installed on the inner side of the wheel body of the brake wheel in the brake device and the outer side of the brake hoop rib. The clamping screw 14 is rotated to make the clamping claw 1 and the clamping claw 2 move toward each other and clamp in the brake wheel of the brake device to prevent the oil pump from rotating. Even if the brake device of the oil pump is damaged and fails, it will not cause the oil pump to rotate, thereby ensuring the personal safety of the construction personnel and the safety of the use of the oil pump.

[0047] Based on the above embodiment 1, the utility model also has the following embodiments: A preferred embodiment: the clamping screw 14 between the clamping thread 1 5 and the clamping thread 2 6 is not provided with threads. The length of this section without threads is set to be more than 1 cm, mainly to facilitate the leaving of a tool groove for thread processing, and to be turned into a polished rod for the sake of beauty.

[0048] A preferred embodiment: the force-applying component 7 is a hand wheel, a handle or a force-applying rod; a wrench square 9 is provided at the end of the clamping screw 14 outside the force-applying component 7, and the wrench square 9 can be connected with a ratchet wrench for more convenient operation. If the force-applying component 7 is a handle, the handle can be connected to the threaded hole in the clamping screw 14; if a force-applying rod is selected, the force-applying rod can be directly inserted into the jack of the clamping screw 14.

[0049] A preferred embodiment: the hand wheel is connected to the clamping screw 14 through a key and a groove, and a retaining spring 8 is installed between the hand wheel and the wrench 9. The stability of the selected hand wheel at the end of the clamping screw 14 is increased.

[0050] A preferred embodiment: screw holes threadedly connected to the clamping thread 1 5 and the clamping thread 2 6 are respectively provided in the main body above the clamping groove 13 in the clamping jaw 1 and the brake hoop holding groove in the clamping jaw 2, and the clamping screw 14 is installed in the clamping groove 13 in the clamping jaw 1 and the clamping jaw 2 and the main body above the brake hoop holding groove.

[0051] A preferred embodiment: the brake hoop clamping groove includes a large brake hoop clamping groove 3 and a small brake hoop clamping groove 4. The small brake hoop clamping groove 4 is in a convex shape after being connected with the large brake hoop clamping groove 3 and is arranged in the inner body of the claw 2 from the inside to the outside. The small brake hoop clamping groove 4 is suitable for use in a 10-type oil pumping unit. After the utility model is installed in the brake device outside the reducer of the 10-type oil pumping unit, the small brake hoop clamping groove 4 is clamped on the outside of its brake hoop rib plate; the large brake hoop clamping groove 3 is suitable for use in a 12-type oil pumping unit. After the utility model is installed in the brake device outside the reducer of the 12-type oil pumping unit, the large brake hoop clamping groove 3 is clamped on the outside of its brake hoop rib plate. The brake hoop clamping groove in the utility model is suitable for use in a 10-type oil pumping unit and a 12-type oil pumping unit, which expands the scope of use of the utility model and achieves dual use. Of course, it can also be made separately and individually according to the type of oil pumping unit and the specific size of the brake hoop in the brake device, that is, the utility model can be made in series and used separately for each type of oil pumping unit.

[0052] A preferred embodiment: the clamping slot 13 in the clamping claw 1 is correspondingly arranged with the brake hoop holding slot in the clamping claw 2, and the width and depth of the clamping slot 13 are consistent with the large brake hoop slot 3; the large brake hoop slot 3, the small brake hoop slot 4 and the clamping slot 13 are all provided with teeth 15 at the bottom of the slot, and the teeth 15 in the brake hoop holding slot and the clamping slot 13 are longitudinal teeth or transverse teeth, Figure 1 The horizontal teeth are shown in FIG. The teeth 15 are arranged in the brake hoop holding groove and the clamping groove 13 to increase the firmness between the parts held therein.

[0053] A preferred embodiment: the lower end of the sliding guide rail 10 is provided with a track groove, the upper end of the clamping claw 1 or the clamping claw 2 is provided with a sliding pin 12, and the clamping claw 1 or the clamping claw 2 is movably connected to the sliding guide rail 10 through the sliding pin 12. The clamping claw 1 or the clamping claw 2 in which the sliding pin 12 is provided is movably connected to the track groove at the lower end of the sliding guide rail 10.

[0054] A preferred embodiment: the upper end of the clamping claw 1 or the clamping claw 2 is fixedly connected to the sliding guide rail 10 by a fixing bolt 11. The clamping claw 1 or the clamping claw 2, which has a bolt connection hole, is fixedly connected to the sliding guide rail 10 by the fixing bolt 11. Whether the clamping claw 1 or the clamping claw 2 is movably connected or fixedly connected to the sliding guide rail 10, under the action of the clamping thread 1 5 and the clamping thread 2 6 with opposite rotation directions, they can move relative to or oppositely along the sliding guide rail 10.

[0055] A preferred embodiment: the clamping claw 1 and the clamping claw 2 in the brake auxiliary locking device are installed on the outside of the brake hoop rib plate and inside the brake wheel spokes near the brake hoop shoe shaft of the oil pumping unit. According to the parking position of the balance block in the oil pumping unit and the direction in which the oil pumping unit may rotate when the unit is stopped, the utility model is selectively installed on the left or right side near the brake hoop shoe shaft of the oil pumping unit, so that the brake hoop shoe shaft of the oil pumping unit and the utility model can jointly inhibit the rotation of the brake wheel of the oil pumping unit to ensure the shortest sliding distance of the brake wheel.

[0056] Operation and use of the utility model:

[0057] 1. Install the utility model

[0058] 1.1 Stop pumping according to the standardized pumping operation requirements: stop the pumping unit in a position convenient for on-site construction operations, tighten the brake device outside the pumping unit reduction box, cut off the power supply, close the electric control cabinet door, and hang a warning sign on the brake handle.

[0059] 1.2 Rotate the force-applying component 7 to allow the clamping claw 1 and the clamping claw 2 to open outward at the same time: under the action of the clamping thread 1 5 and the clamping thread 2 6, the maximum opening size is reached; under the action of the sliding guide rail 10 and the sliding pin 12, the clamping claw 1 and the clamping claw 2 will not be skewed or deformed during the movement.

[0060] 1.3 Install the claw 1 in the spoke of the brake wheel of the brake device;

[0061] 1.4 Install the clamping claw 2 on the outside of the brake hoop rib of the brake device and install the tool close to the brake shoe shaft in the brake device; when used for a 10-type oil pump, clamp the small brake hoop clamping groove 4 on the outside of the brake hoop rib, and when used for a 12-type oil pump, clamp the large brake hoop clamping groove 3 on the outside of the brake hoop rib.

[0062] 1.5 Rotate the force-applying component 7 in the opposite direction to allow the tool to tightly hold the brake hoop and brake wheel in the brake device; under the action of the clamping thread 1 5 and the clamping thread 2 6, the clamping claw 1 and the clamping claw 2 2 are locked inward at the same time; 1.6 In order to ensure the locking of the clamping claw 1 and the clamping claw 2, a ratchet wrench can be installed on the wrench square 9 to apply force to ensure that the maximum locking force is achieved; 1.7 After completing the installation of the above steps of the tool, various construction works can be carried out on the oil pump.

[0063] 2. Disassembly of the Utility Model

[0064] 2.1 Rotate the force-applying component 7 to allow the clamping claw 1 and the clamping claw 2 to open outward at the same time to reach the maximum opening size; under the action of the sliding guide rail 10 and the sliding pin 12, the clamping claw 1 and the clamping claw 2 will not be skewed or deformed.

[0065] 2.2 Take out the utility model and start the well opening operation.

[0066] 3. Start pumping according to the standardized pumping operation requirements of the oil pump.

[0067] The embodiments described above are only typical embodiments, but the utility model is not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and enlightenment of the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. Any modifications, equivalent replacements, improvements, etc. made within the creative spirit and creative concept of the utility model should be included in the protection scope of the utility model. Therefore, the protection scope is not limited to the above description.

Claims

1. A portable brake auxiliary locking device for an oil pump, characterized in that: It is provided with a clamping claw 1, a clamping claw 2, a sliding guide rail and a clamping screw, wherein: a clamping thread 1 and a clamping thread 2 with opposite rotation directions are provided on the outside of the clamping screw and a force-applying component is installed at one end; a brake hoop clamping groove is provided on the inner side of the clamping claw 2, and a clamping groove is provided on the inner side of the clamping claw 1; one of the clamping claw 1 and the clamping claw 2 is fixedly connected to the sliding guide rail, and the other is movably connected to the sliding guide rail through a sliding pin; the clamping claw 1 and the clamping claw 2 are respectively threadedly connected to the clamping screw through the clamping thread 1 and the clamping thread 2.

2. A portable brake auxiliary locking device for an oil pumping unit as claimed in claim 1, characterized in that: The clamping screw between the clamping thread 1 and the clamping thread 2 is not provided with threads.

3. A portable brake auxiliary locking device for an oil pumping unit as claimed in claim 1 or 2, characterized in that: The force-applying component is a hand wheel, a handle or a force-applying rod; a wrench square is provided at the end of the clamping screw outside the force-applying component, and the wrench square can be connected to a ratchet wrench.

4. A portable brake auxiliary locking device for an oil pumping unit as claimed in claim 3, characterized in that: The hand wheel is connected to the clamping screw by a key and a groove, and a retaining spring is arranged between the hand wheel and the wrench.

5. A portable brake auxiliary locking device for an oil pumping unit as claimed in claim 3, characterized in that Screw holes threadedly connected to clamping thread one and clamping thread two are respectively provided in the main body above the clamping slot in clamping jaw one and clamping jaw two, and the clamping screw is installed in the main body above the clamping slot in clamping jaw one and clamping jaw two and the brake hoop holding slot.

6. A portable brake auxiliary locking device for an oil pumping unit as claimed in claim 5, characterized in that: The brake hoop clamping groove comprises a large brake hoop clamping groove and a small brake hoop clamping groove. The small brake hoop clamping groove is connected with the large brake hoop clamping groove to form a convex shape and is continuously arranged in the inner body of the second clamping claw from the inside to the outside.

7. A portable brake auxiliary locking device for an oil pumping unit as claimed in claim 6, characterized in that: The clamping slot in the first clamping jaw is arranged corresponding to the brake hoop holding slot in the second clamping jaw, and the width and depth of the clamping slot are consistent with those of the large brake hoop slot; the bottoms of the large brake hoop slot, the small brake hoop slot and the clamping slot are all provided with teeth, and the teeth in the brake hoop holding slot and the clamping slot are longitudinal teeth or transverse teeth.

8. A portable brake auxiliary locking device for an oil pumping unit as claimed in claim 7, characterized in that: A track groove is arranged at the lower end of the sliding guide rail, a sliding pin is arranged at the upper end of the first clamping claw or the second clamping claw, and the first clamping claw or the second clamping claw is movably connected to the sliding guide rail through the sliding pin.

9. A portable brake auxiliary locking device for an oil pumping unit as claimed in claim 8, characterized in that: The upper end of the first clamping claw or the second clamping claw is fixedly connected to the sliding guide rail via a fixing bolt.

10. A portable brake auxiliary locking device for an oil pumping unit as claimed in claim 9, characterized in that: The first and second clamping claws in the brake auxiliary locking device are arranged outside the brake hoop rib plate and inside the brake wheel spokes on one side of the brake hoop shoe shaft of the oil pumping unit.

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