Pumping unit horse head positioning and cutting device

Abstract

The utility model relates to the technical field of cutting devices, in particular to a horsehead positioning and cutting device of a pumping unit. The oil pumping unit horse head positioning and cutting device comprises a bottom plate, supporting rods are arranged at the four corners of the top of the bottom plate, and guiding assemblies are arranged at the tops of the supporting rods; the guide assembly comprises a top frame, the top frame is fixedly connected with the supporting rod through a nut, a guide strip is arranged in the top frame, a guide groove is formed in the guide strip, a guide piece in sliding connection is inserted into the guide groove, and arc-shaped guide rails are arranged on the two sides of the outer wall of the top frame. When the horse head positioning and cutting device of the oil pumping unit is used, the cutting blade is installed on the arc-shaped guide rail, the arc-shaped guide rail can position the cutting blade and guide the moving track of the cutting blade when the horse head positioning and cutting device is used in the later period, and therefore the depth of a cut opening by the cutting blade can be more accurate and even, and the cutting efficiency is improved. And meanwhile, the operation difficulty of workers can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting devices, in particular to a donkey head positioning and cutting device for an oil pump. Background Art

[0002] The donkey head of the oil pump is one of the key components of the oil pump. It is a device shaped like a "donkey head" and is mainly installed at the front end of the walking beam of the oil pump. Its function is to connect the polished rod and drive the polished rod through up and down reciprocating motion, thereby pumping the crude oil from the well to the ground. During the oil field exploitation process, with the changes in the production conditions of the oil well, such as the reduction of oil layer pressure and the reduction of liquid production, the oil pump sometimes needs to be modified. If you want to replace a different type of polished rod, you may need to cut the donkey head. For example, when you need to install a larger diameter polished rod to meet the higher intensity of oil pumping, the original opening size of the donkey head may not be suitable. By cutting, the opening size can be adjusted to adapt to the new polished rod.

[0003] At present, when the opening of the oil pumping unit is cut, the staff generally uses a hand-held cutting device to operate. Since the outer wall of the oil pumping unit is an arc-shaped structure, in order to make the oil pumping unit swing the light rod up and down to better fit the inner wall of the opening, the inner wall of the opening also has the same arc as the outer wall of the oil pumping unit. Therefore, the staff uses a hand-held cutting method, which not only increases the difficulty of operation for the staff, but also has a relatively low cutting accuracy.

[0004] Therefore, it is necessary to provide a new pumping unit donkey head positioning and cutting device to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a donkey head positioning and cutting device for an oil pumping unit.

[0006] The utility model provides a donkey head positioning and cutting device for an oil pumping unit, comprising: a bottom plate, four corners of the top of the bottom plate are provided with support rods, and the top of the support rods is provided with a guide assembly;

[0007] The guide assembly comprises a top frame, the top frame is fixedly connected to the support rod through a nut, a guide bar is arranged inside the top frame, a guide groove is provided inside the guide bar, a guide sheet connected in a sliding manner is inserted inside the guide groove, and arc guide rails are arranged on both sides of the outer wall of the top frame;

[0008] A sliding connection support frame is provided inside the arc-shaped guide rail, and a movably connected cutting sheet is provided inside the support frame.

[0009] Preferably, a slidably connected linkage frame is inserted inside the guide plate, the bottom end of the linkage frame is inserted into the support frame and fixedly connected by a nut, rolling plates are provided on both side walls of the support frame, and the outer wall of the rolling plate is abutted against and slidably connected to the inner wall of the arc guide rail.

[0010] Preferably, a mounting frame is provided inside the support frame, a rotatably connected adjusting rod a is provided inside the mounting frame, a guide rod a is provided above the adjusting rod a inside the mounting frame, and a threaded adapter frame is sleeved outside the adjusting rod a.

[0011] Preferably, the interior of the adapter frame is slidably connected to the outer wall of the guide rod a, the interior of the adapter frame is rotationally connected to the cutting blade via a shaft, and the exterior of the adapter frame is provided with a motor for driving the cutting blade.

[0012] Preferably, a rotatably connected adjusting rod b is provided at the center of the top of the mounting frame, the outer wall of the adjusting rod b is threadedly connected to the inner wall of the support frame, guide rods b are provided on both sides of the top of the mounting frame, and the outer wall of the guide rod b is slidably connected to the inner wall of the support frame.

[0013] Preferably, both sides of the bottom plate are provided with slide grooves, a sliding block connected in a sliding manner is inserted into the slide groove, and a fixedly connected support column is provided on the top of the sliding block.

[0014] Preferably, a threaded limit cap is provided on the outer wall of the support column, the bottom of the limit cap is abutted against the top of the base plate, the bracket of the support column is inserted with a threaded rotating column, and the end of the rotating column is provided with a fixedly connected extrusion disk.

[0015] Compared with the related art, the oil pumping unit donkey head positioning and cutting device provided by the utility model has the following beneficial effects:

[0016] 1. The utility model is provided with a guide component. When in use, the cutting blade is installed on the arc guide rail. When in use later, the arc guide rail can position the cutting blade and guide its moving trajectory, so that the cutting blade can cut the opening depth more accurately and evenly, and the operation difficulty of the staff can also be reduced.

[0017] 2. The utility model flexibly connects the guide assembly with the support rod, and flexibly connects the support frame with the guide assembly. When used later, a curved guide rail that matches the outer wall of the pumping unit head can be selected according to the curvature of the outer wall, thereby improving the flexibility and application scope of the device in later use.

[0018] 3. The utility model sets the cutting blade in the guide assembly, which can reduce the force required for the worker to hold the cutting blade when in use, and can also reduce the reverse force of the cutting blade when working, and the vibration to the worker's arm, thereby improving the user experience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model provides a structural schematic diagram of a preferred embodiment of the donkey head positioning and cutting device for an oil pumping unit;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the connection between the guide assembly and the support frame shown;

[0021] Figure 3 for Figure 2 A schematic diagram of the structure of the support frame and its components shown;

[0022] Figure 4 for Figure 1 A schematic diagram of the structure of the bottom plate and its components shown;

[0023] Figure 5 It is a schematic diagram of the structure of the installation of the utility model.

[0024] Numbers in the figure: 1. Base plate; 11. Support rod; 12. Slide groove; 13. Slider; 14. Support column; 15. Limiting cap; 16. Rotating column; 17. Extrusion plate; 2. Guide assembly; 21. Top frame; 211. Guide strip; 212. Guide groove; 213. Guide sheet; 22. Arc guide rail; 3. Support frame; 31. Linkage frame; 32. Roller; 4. Mounting frame; 41. Adjustment rod a; 411. Guide rod a; 42. Adjustment rod b; 421. Guide rod b; 43. Adapter frame; 5. Cutting disc. DETAILED DESCRIPTION

[0025] 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.

[0026] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0027] See also Figures 1 to 5 The utility model provides a pumping unit donkey head positioning and cutting device, which includes a base plate 1, support rods 11 are arranged at the four corners of the top of the base plate 1, and a guide assembly 2 is arranged at the top of the support rod 11.

[0028] In the embodiments of the present invention, please refer to Figures 1 to 5 The guide assembly 2 includes a top frame 21, which is fixedly connected to the support rod 11 through a nut. A guide bar 211 is provided in the top frame 21, and a guide groove 212 is provided inside the guide bar 211, and a slidably connected guide piece 213 is inserted inside the guide groove 212. Arc guide rails 22 are provided on both sides of the outer wall of the top frame 21; a slidably connected support frame 3 is provided inside the arc guide rail 22, and a movably connected cutting piece 5 is provided inside the support frame 3, and a slidably connected linkage frame 31 is inserted inside the guide piece 213, and the bottom end of the linkage frame 31 is inserted into the support frame 3 and fixedly connected by a nut, and rolling pieces 32 are provided on the two side walls of the support frame 3, and the outer wall of the rolling piece 32 is abutted against and slidably connected to the inner wall of the arc guide rail 22.

[0029] It should be noted that: through the sliding of the roller 32 and the inner wall of the arc-shaped guide rail 22, the sliding connection between the guide piece 213 and the guide groove 212 and the linkage frame 31, when the staff pushes the support frame 3 to move in the later stage, the support frame 3 can drive the roller 32 and the sliding piece to slide synchronously. When the roller 32 moves to the protruding part inside the arc-shaped guide rail 22 and applies a vertical driving force to the support frame 3, the linkage frame 31 can slide vertically inside the guide piece 213, and then the support frame 3 can move smoothly along the inner wall of the arc-shaped guide rail 22, so as to realize the positioning and guiding of the cutting blade 5 inside the support frame 3, so that the cutting blade 5 can control the depth of the cut opening more accurately and evenly, and at the same time, it can also reduce the difficulty of operation for the staff.

[0030] In the embodiments of the present invention, please refer to Figures 1 to 5 A mounting frame 4 is mounted inside the support frame 3, and a rotatably connected adjusting rod a41 is arranged inside the mounting frame 4, a guide rod a411 is arranged above the adjusting rod a41 inside the mounting frame 4, and a threaded adapter frame 43 is sleeved on the outside of the adjusting rod a41, the inside of the adapter frame 43 is slidably connected to the outer wall of the guide rod a411, the inside of the adapter frame 43 is rotatably connected to the cutting blade 5 through an axle rod, and a motor for driving the cutting blade 5 is arranged on the outside of the adapter frame 43, a rotatably connected adjusting rod b42 is arranged at the center of the top of the mounting frame 4, the outer wall of the adjusting rod b42 is threadedly connected to the inner wall of the support frame 3, guide rods b421 are arranged on both sides of the top of the mounting frame 4, and the outer wall of the guide rod b421 is slidably connected to the inner wall of the support frame 3.

[0031] It should be noted that: through the setting of the adjusting rod a41 and the adjusting rod b42, when installing the present device, the rotating adjusting rod a41 can drive the cutting disc 5 below to move left and right in the vertical plane, and through the rotation of the adjusting rod b42, the cutting disc 5 below can be driven to move up and down in the vertical plane, thereby realizing the adjustment of the vertical plane direction of the cutting disc 5, so that the cutting disc 5 can perform precise cutting of the donkey head of the oil pump as needed in the later stage.

[0032] In the embodiments of the present invention, please refer to Figures 1 to 5 A slide groove 12 is provided on both sides of the bottom plate 1, a sliding block 13 is inserted into the inside of the slide groove 12, and a fixedly connected support column 14 is provided on the top of the slider 13, a threaded limit cap 15 is provided on the outer wall of the support column 14, the bottom of the limit cap 15 is abutted against the top of the bottom plate 1, a threaded rotating column 16 is inserted into the bracket of the support column 14, and a fixedly connected extrusion disk 17 is provided at the end of the rotating column 16.

[0033] It should be noted that: by making the squeeze plate 17 movable, the position of the squeeze plate 17 can be flexibly adjusted when installing the device, so that the outer wall of the squeeze plate 17 can smoothly abut against the through holes on the outer wall of the donkey head of different models of oil pumps, so that the device can be flexibly installed outside the donkey head of the oil pump.

[0034] The working principle of the oil pumping unit donkey head positioning and cutting device provided by the utility model is as follows:

[0035] When using the device, the staff can first move the bottom plate 1 to one side wall of the pumping unit donkey head plane, and take out the slider 13, insert the support column 14 into the slide groove 12, and then control the slider 13 to drive the support column 14 and the extrusion plate 17 inside it to move, until the position of the extrusion plate 17 is opposite to the through hole on the side wall of the pumping unit donkey head, and first control the limit rod to rotate, so that the bottom of the limit cap 15 is against the top of the bottom plate 1, so as to achieve the fixation between the support column 14 and the bottom plate 1, and then control the rotating column 16 to drive the extrusion plate 17 to move in the direction close to the pumping unit donkey head, until the outer wall of the extrusion plate 17 is against the outer wall of the through hole of the pumping unit donkey head, the bottom plate 1 and the pumping unit donkey head can be fixed;

[0036] Then, the guide assembly 2 that matches the arc shape of the outer wall of the pumping unit can be taken out, and the top frame 21 in the guide assembly 2 is inserted into the top of the plurality of support rods 11 on the bottom plate 1, and then fixed by nuts, and the installation of the guide assembly 2 can be completed at this time;

[0037] Next, the linkage frame 31 can be taken out and inserted into the guide piece 213. After the linkage frame 31 is inserted, the support frame 3 can be taken out and inserted into the bottom of the linkage frame 31 and fixedly connected by nuts. Then, the support frame 3 can be lifted up so that the rolling piece 32 on the side wall of the support frame 3 is inserted into the arc guide rail 22. At this point, the support installation of the cutting piece 5 in the support frame 3 can be completed.

[0038] At this time, the staff can control the adjustment rod a41 and the adjustment rod b42 to rotate as needed to adjust the position of the cutting blade 5. After completing the adjustment of the position of the cutting blade 5, the motor can be controlled to drive the cutting blade 5 to rotate, and then the linkage frame 31 can be pushed to make the linkage frame 31 and the support frame 3 slide inside the guide assembly 2, thereby driving the cutting blade 5 to move along the inner wall of the arc guide rail 22, so that the cutting blade 5 can cut the outer wall of the opening in the donkey head of the oil pump more evenly.

[0039] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0040] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A donkey head positioning and cutting device for an oil pump, characterized in that: include: A bottom plate (1), wherein four corners of the top of the bottom plate (1) are each provided with a support rod (11), and a guide assembly (2) is provided on the top of each support rod (11); The guide assembly (2) comprises a top frame (21), the top frame (21) being fixedly connected to the support rod (11) via a nut, a guide bar (211) being provided inside the top frame (21), a guide groove (212) being provided inside the guide bar (211), a guide sheet (213) being slidably connected being inserted inside the guide groove (212), and arc-shaped guide rails (22) being provided on both sides of the outer wall of the top frame (21); A slidably connected support frame (3) is provided inside the arc-shaped guide rail (22), and a movably connected cutting piece (5) is provided inside the support frame (3).

2. The oil pumping unit donkey head positioning and cutting device according to claim 1 is characterized in that: A slidably connected linkage frame (31) is inserted into the guide piece (213), the bottom end of the linkage frame (31) is inserted into the support frame (3) and fixedly connected via a nut, and rolling pieces (32) are provided on both side walls of the support frame (3), and the outer wall of the rolling piece (32) abuts against the inner wall of the arc-shaped guide rail (22) and is slidably connected.

3. The oil pumping unit donkey head positioning and cutting device according to claim 2 is characterized in that: A mounting frame (4) is arranged inside the support frame (3), a rotatably connected adjusting rod a (41) is arranged inside the mounting frame (4), a guide rod a (411) is arranged above the adjusting rod a (41) inside the mounting frame (4), and a threadedly connected adapter frame (43) is sleeved outside the adjusting rod a (41).

4. The oil pumping unit donkey head positioning and cutting device according to claim 3 is characterized in that: The interior of the adapter frame (43) is slidably connected to the outer wall of the guide rod a (411), the interior of the adapter frame (43) is rotatably connected to the cutting blade (5) via a shaft, and a motor for driving the cutting blade (5) is provided on the outside of the adapter frame (43).

5. The oil pumping unit donkey head positioning and cutting device according to claim 4 is characterized in that: A rotatably connected adjusting rod b (42) is provided at the center of the top of the mounting frame (4), the outer wall of the adjusting rod b (42) is threadedly connected to the inner wall of the support frame (3), and guide rods b (421) are provided on both sides of the top of the mounting frame (4), and the outer wall of the guide rod b (421) is slidably connected to the inner wall of the support frame (3).

6. The oil pumping unit donkey head positioning and cutting device according to claim 1, characterized in that: Slide grooves (12) are provided on both sides of the bottom plate (1), a sliding block (13) is inserted into the inside of the slide groove (12), and a fixedly connected support column (14) is provided on the top of the sliding block (13).

7. The oil pumping unit donkey head positioning and cutting device according to claim 6 is characterized in that: A threaded limiting cap (15) is provided on the outer wall of the support column (14), the bottom of the limiting cap (15) abuts against the top of the bottom plate (1), a threaded rotating column (16) is inserted into the bracket of the support column (14), and a fixedly connected extrusion disc (17) is provided at the end of the rotating column (16).

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