Hoisting tool for maintaining crank of oil pumping unit

Abstract

The utility model belongs to the technical field of hoisting tools, and particularly relates to a hoisting tool for maintenance of a crank of an oil pumping unit, which comprises a mounting seat. The hoisting assembly comprises a mounting frame fixed to the upper surface of the mounting base, a driving motor fixed to one side of the mounting frame and a winding roller arranged in the mounting frame, a rope is wound around the surface of the winding roller, and two sets of extrusion plates are arranged on the lower surface of the mounting base; wherein one set of extrusion plates is fixedly connected with the mounting base, a protruding block is fixed to the upper surface of the other set of extrusion plates, a sliding groove matched with the protruding block is formed in the surface of the mounting base, the protruding block is slidably connected with the mounting base through the sliding groove, and a first threaded rod is arranged in the sliding groove. And therefore, manual pulling through a rope is not needed, the safety of workers is improved, meanwhile, the labor intensity of the workers is relieved, and the using effect of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hoisting tools, in particular to a hoisting tool for repairing a crank of an oil pumping unit. Background Art

[0002] The pumping unit is mainly used to extract oil from underground oil wells. It pumps the oil from the bottom of the well to the ground through up and down reciprocating motion. The pumping unit is one of the important equipment in the oil production process, and the crank is the transmission component on the pumping unit. Its function is to convert the rotation into the swing of the donkey head. When replacing the crank accessories of the pumping unit, a pumping unit crank maintenance hoisting tool is required;

[0003] At present, when replacing and repairing accessories such as crank pins, bearings and bushings, without a crane, they need to be pulled up manually with ropes, which is extremely dangerous and increases the labor intensity of the staff, reducing the use effect of the device;

[0004] In order to solve the above problems, the present application proposes a pumping unit crank maintenance hoisting tool. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a pumping unit crank maintenance hoisting tool, which has the characteristics of not requiring manual pulling with ropes, improving the safety of workers, reducing the labor intensity of workers, and improving the use effect of the device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pumping unit crank maintenance lifting tool, comprising a mounting seat, a lifting assembly installed on the mounting seat, the lifting assembly comprising a mounting frame fixed to the upper surface of the mounting seat, a driving motor fixed to one side of the mounting frame and a winding roller arranged inside the mounting frame, a rope is wound around the surface of the winding roller, two groups of extrusion plates are arranged on the lower surface of the mounting seat, one group of the extrusion plates is fixedly connected to the mounting seat, and a protrusion is fixed on the upper surface of the other group of the extrusion plates, a sliding groove matched with the protrusion is opened on the surface of the mounting seat, the protrusion and the mounting seat are slidably connected through the sliding groove, a threaded rod 1 is arranged in the sliding groove, the two end surfaces of the threaded rod 1 are rotatably connected to the mounting seat through bearings, and the protrusion and the threaded rod 1 are threadedly connected.

[0007] As a preferred embodiment of the utility model for repairing and lifting the crank of the oil pump, one end of the rope is fixedly connected to the winding rod, a rotating shaft is fixed at the inner center of the winding rod, and the rotating shaft is rotatably connected to the mounting frame through a bearing, the output end of the driving motor is fixedly connected to the rotating shaft, and one end of the threaded rod extends to the outside of the mounting seat.

[0008] As a preferred embodiment of the utility model for repairing and lifting the crank of the oil pump, the lower surface of the mounting seat is provided with symmetrically arranged mounting grooves, and an electromagnet is arranged in the mounting groove. The electromagnet is fixedly connected to the mounting seat, and silicone pads are fixed on the sides of the two groups of extrusion plate surfaces close to each other.

[0009] As a preferred embodiment of the utility model of the oil pump crank maintenance and lifting tool, the interior of the mounting seat is rotatably connected to a threaded barrel via a bearing, the internal thread of the threaded barrel is threadedly connected to a threaded rod 2, one end of the threaded rod 2 is rotatably connected to a limit frame via a bearing, symmetrically arranged telescopic rods are fixed between the limit frame and the mounting seat, a hook is arranged below the limit frame, a through hole compatible with the rope is opened on the surface of the limit frame, one end of the rope passes through the through hole and is fixedly connected to the hook below the limit frame.

[0010] As a preferred embodiment of the utility model for repairing and hoisting the crank of an oil pump, a roller is rotatably connected to the interior of the limit frame via a rotating shaft.

[0011] As a preferred embodiment of the utility model of the oil pump crank maintenance and lifting tool, an auxiliary component is installed between the threaded rod 1 and the threaded barrel, and the auxiliary component includes a gear 1 fixed on the surface of the threaded barrel, a gear 2 arranged on the surface of the threaded rod 1 and matching the gear 1, and a sleeve sleeved on the surface of the threaded rod 1, the sleeve and the gear 2 are fixedly connected, a pin is slidably connected to the surface of the sleeve, a spring is wound around the surface of the pin, both ends of the spring are fixedly connected to the sleeve and the pin, respectively, and the surface of the threaded rod 1 is provided with a socket 2 and a socket 1 matching the pin, respectively.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] By setting up a lifting component, there is no need for manual pulling with ropes, which improves the safety of the workers, reduces the labor intensity of the workers, and improves the use effect of the device. An auxiliary component is added to this mechanism, so that only by rotating the threaded cylinder, the limit frame can be extended outward and the extrusion plate can be squeezed and fixed on the crank, which eliminates the need for step-by-step operation, further reduces the labor intensity of the workers, and improves the practicability and flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a structural cross-sectional view of the mounting seat in the utility model;

[0017] Figure 3 It is a partial cross-sectional view of the structure of the threaded rod 1 in the utility model;

[0018] Figure 4 For the utility model Figure 3 A is an enlarged structural diagram of FIG.

[0019] In the figure: 1. mounting base; 2. lifting assembly; 201. mounting frame; 202. winding roller; 203. driving motor; 204. rope; 205. extrusion plate; 206. silicone pad; 207. threaded rod one; 208. bump; 209. threaded cylinder; 210. threaded rod two; 211. limiting frame; 212. roller; 213. telescopic rod; 214. hook; 215. electromagnet; 3. auxiliary assembly; 301. gear one; 302. gear two; 303. sleeve; 304. socket one; 305. socket two; 306. latch; 307. spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] like Figure 1 As shown:

[0023] A maintenance hoisting tool for a pumping unit crank comprises a mounting base 1.

[0024] In this implementation scheme: In order to solve the technical problems existing in this prior art, as disclosed in the background technology above, "at present, when replacing and repairing accessories such as crank pins, bushings and bearings, in the absence of a crane, it is necessary to manually pull them up with ropes, which is extremely dangerous and increases the labor intensity of the staff and reduces the use effect of the device." In terms of use, this problem is obviously a real and difficult problem to solve. In view of this, in order to solve this technical problem, a lifting component 2 and an auxiliary component 3 are added to the application document, and the electrical equipment involved in this product are all powered by an external power supply.

[0025] More specifically:

[0026] like Figure 1-Figure 4 As shown:

[0027] A hoisting assembly 2 is installed on the mounting seat 1, and the hoisting assembly 2 includes a mounting frame 201 fixed on the upper surface of the mounting seat 1, a driving motor 203 fixed on one side of the mounting frame 201, and a winding roller 202 arranged inside the mounting frame 201, a rope 204 is wound around the surface of the winding roller 202, two groups of extrusion plates 205 are arranged on the lower surface of the mounting seat 1, one group of extrusion plates 205 is fixedly connected to the mounting seat 1, and a protrusion 208 is fixed on the upper surface of the other group of extrusion plates 205, and a sliding groove matching the protrusion 208 is opened on the surface of the mounting seat 1. The protrusion 208 and the mounting seat 1 are slidably connected through the sliding groove, and a threaded rod 207 is arranged in the sliding groove. The two end surfaces of the threaded rod 207 are rotatably connected to the mounting seat 1 through bearings, and the protrusion 208 and the threaded rod 207 are threadedly connected;

[0028] One end of the rope 204 is fixedly connected to the winding roller 202. A rotating shaft is fixed at the inner center of the winding roller 202, and the rotating shaft is rotatably connected to the mounting frame 201 through a bearing. The output end of the driving motor 203 is fixedly connected to the rotating shaft, and one end of the threaded rod 207 extends to the outside of the mounting seat 1.

[0029] In this embodiment: the pumping unit crank maintenance hoisting tool, when in use, the device is placed at a specified position of the crank (not shown in the figure), and then the threaded rod 207 is rotated to drive the protrusion 208 to move, and the movement of the protrusion 208 drives the extrusion plate 205 to move, and the device is clamped and fixed on the crank by two groups of extrusion plates 205. When the device is fixed, the drive motor 203 is started to drive the winding rod 202 to rotate, and the rope 204 is released by the winding rod 202, and then the accessory is hung on the hook 214, and then the drive motor 203 is started to reverse and the rope 204 is wound up, so as to lift the accessory until it rises to the designated maintenance position. Through this operation, there is no need to manually pull the rope, which improves the safety of the staff, reduces the labor intensity of the staff, and improves the use effect of the device.

[0030] Going further;

[0031] In an optional embodiment, the lower surface of the mounting base 1 is provided with symmetrically arranged mounting grooves, and an electromagnet 215 is arranged in the mounting groove. The electromagnet 215 is fixedly connected to the mounting base 1, and a silicone pad 206 is fixed on the side where the two groups of extrusion plates 205 are close to each other.

[0032] In this embodiment: before fixing the device, the electromagnet 215 is energized to generate magnetism and adsorb the mounting base 1 to the surface of the crank, thereby preliminarily fixing the device on the crank, reducing the force of holding the device relative to the crank, thereby making it easier to rotate the threaded rod 207 and improving the practicality of the device. By setting the silicone pad 206, the friction between the extrusion plate 205 and the crank can be increased, thereby improving the fixing effect of the device.

[0033] Going further;

[0034] In an optional embodiment, the interior of the mounting seat 1 is rotatably connected with a threaded cylinder 209 through a bearing, the interior of the threaded cylinder 209 is threadedly connected with a threaded rod 210, one end of the threaded rod 210 is rotatably connected to a limit frame 211 through a bearing, symmetrically arranged telescopic rods 213 are fixed between the limit frame 211 and the mounting seat 1, a hook 214 is provided below the limit frame 211, a through hole adapted to the rope 204 is opened on the surface of the limit frame 211, one end of the rope 204 passes through the through hole and is fixedly connected to the hook 214 below the limit frame 211;

[0035] The interior of the limiting frame 211 is rotatably connected to a roller 212 via a rotating shaft.

[0036] In this embodiment, the threaded cylinder 209 is rotated to drive the second threaded rod 210 to extend, and the second threaded rod 210 drives the limit frame 211 to move, and the limit frame 211 drives the telescopic rod 213 to stretch. The setting of the telescopic rod 213 can limit the limit frame 211, so that the limit frame 211 is more stable during the movement. As the second threaded rod 210 continues to extend outward, the limit frame 211 is driven to continuously move away from the mounting seat 1. Through this operation, when the accessory is stretched, the accessory can be placed in a relatively far state relative to the crank, so that when the accessory is stretched, the limit frame 211 can be moved away from the mounting seat 1. When the accessory moves up, it is avoided to touch the crank and affect the upward movement of the accessory, thereby further improving the use effect of the device. When the accessory is stretched by the rope 204, the rope 204 slides on the roller 212, thereby reducing the friction between the rope 204 and the limiting frame 211. At the same time, the through hole on the limiting frame 211 can limit the rope 204. When the accessory corresponds to the maintenance position, the threaded cylinder 209 is rotated in the opposite direction to drive the threaded rod 210 to retract, and the drive motor 203 is started to drive the rope 204 to reel in. At this time, the accessory is close to the maintenance position.

[0037] Further,

[0038] In an optional embodiment, an auxiliary component 3 is installed between the threaded rod 207 and the threaded barrel 209, and the auxiliary component 3 includes a gear 1 301 fixed on the surface of the threaded barrel 209, a gear 2 302 arranged on the surface of the threaded rod 207 and matching the gear 1 301, and a sleeve 303 sleeved on the surface of the threaded rod 207, the sleeve 303 and the gear 2 302 are fixedly connected, the surface of the sleeve 303 is slidably connected with a pin 306, the surface of the pin 306 is wound with a spring 307, the two ends of the spring 307 are respectively fixedly connected to the sleeve 303 and the pin 306, and the surface of the threaded rod 207 is respectively provided with a socket 2 305 and a socket 1 304 adapted to the pin 306.

[0039] In this embodiment, while the threaded barrel 209 is rotated, the gear 1 301 is driven to rotate, and the gear 2 302 is driven to rotate through the rotation of the gear 1 301, and the extrusion plate 205 is driven to move. When the two sets of extrusion plates 205 squeeze and fix the crank, it is difficult to rotate the threaded rod 1 207. At this time, the latch 306 is pulled and the spring 307 is stretched until the latch 306 is moved out of the second socket 305, and then the sleeve 303 is slid, thereby driving the gear 2 302 to move. , until the pin 306 is inserted into the inside of the socket 1 304 again, at this time, the gear 1 301 and the gear 2 302 are separated, and the threaded cylinder 209 continues to be rotated, and the limit frame 211 is driven to extend outward through the threaded rod 210. Through this operation, only by rotating the threaded cylinder 209, the limit frame 211 can be partially extended outward, and the extrusion plate 205 can also be squeezed and fixed to the crank, so there is no need for step-by-step operation, which further reduces the labor intensity of the staff and improves the practicality and flexibility of the device.

[0040] The working principle and use process of the utility model are as follows: when using the pumping unit crank maintenance lifting tool, the device is placed at a specified position of the crank (not shown in the figure), and then the threaded rod 207 is rotated to drive the protrusion 208 to move, and the movement of the protrusion 208 drives the extrusion plate 205 to move, and the device is clamped and fixed on the crank by two groups of extrusion plates 205. The friction between the extrusion plate 205 and the crank can be increased by the provision of the silicone pad 206, thereby improving the fixing effect of the device. Before fixing the device, the electromagnet 215 is energized, and the electromagnet 215 generates magnetism, and the mounting seat 1 is adsorbed on the surface of the crank, and the device is initially fixed on the crank, which reduces the difficulty of holding the device relative to the crank. The force of the crank makes it easier to rotate the threaded rod 1 207, thereby improving the practicality of the device. When the device is fixed, the drive motor 203 is then started, thereby driving the winding rod 202 to rotate, and the rope 204 is released through the winding rod 202, and then the accessory is hung on the hook 214, and then the drive motor 203 is started to reverse and the rope 204 is rolled up to lift the accessory until it rises to the designated maintenance position. Through this operation, there is no need to manually pull with a rope, which improves the safety of the staff, reduces the labor intensity of the staff, and improves the use effect of the device. Before pulling the accessory, the threaded cylinder 209 is then rotated to drive the threaded rod 210 to extend, and then the threaded rod 210 is pulled up. The threaded rod 210 drives the limit frame 211 to move, and the limit frame 211 drives the telescopic rod 213 to stretch. The setting of the telescopic rod 213 can limit the limit frame 211, making the limit frame 211 more stable during movement. As the threaded rod 210 continues to stretch outward, the limit frame 211 is driven to continuously move away from the mounting seat 1. Through this operation, when the accessory is stretched, the accessory can be placed in a relatively far state relative to the crank, so that when the accessory is moved upward, it is avoided to touch the crank and affect the upward movement of the accessory, thereby further improving the use effect of the device. When the rope 204 is stretched, the rope 204 slides on the roller 212, so that the rope can be lowered. The friction between 204 and the limiting frame 211, and the through hole on the limiting frame 211 can limit the rope 204. When the accessory corresponds to the maintenance position, the threaded cylinder 209 is rotated in the opposite direction to drive the threaded rod 210 to shrink, and the driving motor 203 is started to drive the rope 204 to reel. At this time, the accessory is close to the maintenance position, and while the threaded cylinder 209 is rotated, the gear 1 301 is driven to rotate, and the gear 2 302 is driven to rotate through the rotation of the gear 1 301, and the extrusion plate 205 is driven to move. When the two groups of extrusion plates 205 squeeze and fix the crank, it is difficult to rotate the threaded rod 1 207. At this time, the pin 306 is pulled and the spring 307 is stretched.Until the latch 306 is removed from the second socket 305, the sleeve 303 is then slid, thereby driving the second gear 302 to move, until the latch 306 is inserted into the first socket 304 again, at which time the first gear 301 and the second gear 302 are separated, and the threaded cylinder 209 is continued to be rotated, and the limit frame 211 is driven to extend outward through the threaded rod 210. Through this operation, only by rotating the threaded cylinder 209, the limit frame 211 can be partially extended outward, and the extrusion plate 205 can also be squeezed and fixed on the crank, so that there is no need for step-by-step operation, which further reduces the labor intensity of the staff and improves the practicality and flexibility of the device.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pumping unit crank maintenance hoisting tool, comprising a mounting base (1), characterized in that: A hoisting assembly (2) is mounted on the mounting seat (1), the hoisting assembly (2) comprising a mounting frame (201) fixed to the upper surface of the mounting seat (1), a driving motor (203) fixed to one side of the mounting frame (201), and a winding roller (202) arranged inside the mounting frame (201), a rope (204) being wound around the surface of the winding roller (202), and two groups of extrusion plates (205) being arranged on the lower surface of the mounting seat (1), one group of the extrusion plates (205) being arranged on the lower surface of the mounting seat (1), and the other group of the extrusion plates (205) being arranged on the lower surface of the mounting seat (1). 5) and the mounting seat (1), the upper surface of the other group of extrusion plates (205) is fixedly connected with a protrusion (208), the surface of the mounting seat (1) is provided with a sliding groove adapted to the protrusion (208), the protrusion (208) and the mounting seat (1) are slidably connected through the sliding groove, a threaded rod (207) is arranged in the sliding groove, the two end surfaces of the threaded rod (207) are rotatably connected with the mounting seat (1) through bearings, and the protrusion (208) and the threaded rod (207) are threadedly connected.

2. The pumping unit crank maintenance hoisting tool according to claim 1, characterized in that: One end of the rope (204) is fixedly connected to the winding roller (202), a rotating shaft is fixed at the inner center of the winding roller (202), and the rotating shaft is rotatably connected to the mounting frame (201) through a bearing, the output end of the driving motor (203) is fixedly connected to the rotating shaft, and one end of the threaded rod (207) extends to the outside of the mounting seat (1).

3. The pumping unit crank maintenance hoisting tool according to claim 2, characterized in that: The lower surface of the mounting seat (1) is provided with symmetrically arranged mounting grooves, and an electromagnet (215) is arranged in the mounting groove. The electromagnet (215) and the mounting seat (1) are fixedly connected, and a silicone pad (206) is fixed on the side of the surfaces of the two groups of extrusion plates (205) that are close to each other.

4. The pumping unit crank maintenance hoisting tool according to claim 3 is characterized by: The interior of the mounting seat (1) is rotatably connected to a threaded cylinder (209) via a bearing, the interior of the threaded cylinder (209) is threadably connected to a second threaded rod (210), one end of the second threaded rod (210) is rotatably connected to a limit frame (211) via a bearing, symmetrically arranged telescopic rods (213) are fixed between the limit frame (211) and the mounting seat (1), a hook (214) is provided below the limit frame (211), a through hole matching the rope (204) is provided on the surface of the limit frame (211), one end of the rope (204) passes through the through hole and is fixedly connected to the hook (214) below the limit frame (211).

5. The pumping unit crank maintenance hoisting tool according to claim 4, characterized in that: The interior of the limiting frame (211) is rotatably connected to a roller (212) via a rotating shaft.

6. The pumping unit crank maintenance hoisting tool according to claim 5, characterized in that: An auxiliary component (3) is installed between the threaded rod (207) and the threaded barrel (209), and the auxiliary component (3) comprises a gear (301) fixed on the surface of the threaded barrel (209), a gear (302) arranged on the surface of the threaded rod (207) and matching the gear (301), and a sleeve (303) sleeved on the surface of the threaded rod (207), the sleeve (303) and the gear (302) being fixedly connected, a latch (306) being slidably connected to the surface of the sleeve (303), a spring (307) being wound around the surface of the latch (306), two ends of the spring (307) being fixedly connected to the sleeve (303) and the latch (306), respectively, and a second socket (305) and a first socket (304) matching the latch (306) are respectively opened on the surface of the threaded rod (207).

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