CN218428141U - Crank pin pulling device of oil pumping unit - Google Patents

Crank pin pulling device of oil pumping unit Download PDF

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Publication number
CN218428141U
CN218428141U CN202222719231.0U CN202222719231U CN218428141U CN 218428141 U CN218428141 U CN 218428141U CN 202222719231 U CN202222719231 U CN 202222719231U CN 218428141 U CN218428141 U CN 218428141U
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China
Prior art keywords
crank pin
pulling
pumping unit
screw rod
threaded screw
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CN202222719231.0U
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Chinese (zh)
Inventor
张春来
郭瑞
黄甫自愿
陈方颖
王香萍
信思英
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Sinopec Shengli Oilfield Co Shengli Oil Extraction Plant
Original Assignee
China Petroleum and Chemical Corp
Sinopec Shengli Oilfield Co Shengli Oil Extraction Plant
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Application filed by China Petroleum and Chemical Corp, Sinopec Shengli Oilfield Co Shengli Oil Extraction Plant filed Critical China Petroleum and Chemical Corp
Priority to CN202222719231.0U priority Critical patent/CN218428141U/en
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Publication of CN218428141U publication Critical patent/CN218428141U/en
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Abstract

The utility model relates to a extracting tool technical field, concretely relates to device is extracted to beam-pumping unit crank pin. Comprises a supporting frame, a crank pin pulling-out body and a crank pin clamping hoop; the crank pin pulling-out body comprises a rotating handle, a rotating nut, a threaded screw rod and a pulling-out device force arm; the rotary handle, the threaded screw rod and the force arm of the puller are sequentially connected, and the threaded screw rod is provided with a rotary nut; the crank pin clamp is connected with the force arm of the puller; the crank pin pulling-out body is fixed through the supporting frame. The device need not to use striking or pneumatic cylinder, thousand golden tops etc. to carry out the shore, can extract labour saving and time saving with the crank pin through the multitime rotation.

Description

Crank pin pulling device of oil pumping unit
Technical Field
The utility model relates to a extracting tool technical field, concretely relates to device is extracted to beam-pumping unit crank pin.
Background
The pumping unit is used as a main lifting device for crude oil production in oil fields, and is widely applied to various oil fields in China, because the pumping unit is continuously produced pumping equipment, and a crank pin is used as a key part of a four-bar mechanism, the crank pin bears the influence of alternating load, friction load and the like, the crank pin is easy to cause problems, needs to be maintained and replaced, and otherwise, serious equipment accidents are caused. When the crank pin is replaced, the crank pin body needs to be pulled out of the bush, but due to the influence of factors such as long-term corrosion, fit clearance and the like, the old crank pin is very difficult to pull out of the bush. The method mainly comprises the following steps: firstly, the copper bar or the sizing block is supported on the back of the crank pin, the copper bar or the sizing block needs to be held by one person, the copper bar or the sizing block is knocked by a sledgehammer by one person, and the crank pin is loosened by means of impact impulse; secondly, a hydraulic jack is utilized to carry out jacking, the operation method is heavy in equipment, two cranks of the pumping unit are easy to deform, and the effect is not ideal; thirdly, the crank pin is heated by oxygen and acetylene and then knocked, and the problems of safety exist. The three methods have the problems of long disassembly time, high labor intensity of workers and high safety risk.
Chinese utility model patent CN201224082 discloses a crank pin bush replacer for beam-pumping unit, include: the device comprises a power nut, a central rod, a check ring, a sheath, a bearing, a support frame, a rib plate, a blocking nut, a spare cap, a cover plate and a tensioning nut; the supporting frame is of a channel steel structure, the cross section of the supporting frame is rectangular, a through hole is formed in the center of the supporting frame, and right-angled triangular rib plates are respectively arranged on the upper inner side and the lower inner side of the supporting frame; a crown power nut is fixed on a T-shaped central rod provided with external threads from right to left and right ends, a check ring, a sheath, a bearing and a support frame are fixed at a certain interval, the support frame is limited by a blocking nut and a spare cap which are arranged in the middle of the central rod, a circular cover plate and a tensioning nut are arranged at the left end of the central rod, the cover plate can rotate on the central rod, and the diameter of the cover plate is between the inner diameter and the outer diameter of a bushing.
The utility model CN207788830U discloses a ware is pulled out to beam-pumping unit crank pin bush, include first backup pad, second screw rod, support frame, bottom plate and strike the stake, the guide rail is installed on the top of support frame, the crank pin has been placed with the top of activity bottom plate to PMKD, install the bush in the crank pin, strike the outside of stake bottom and install the baffle through helicitic texture, the outside of preparing the position department locking screw pole of board below installs lock nut through helicitic texture, the second screw rod is installed through helicitic texture in the bottom of first backup pad, the pneumatic cylinder is installed to the bottom of mount pad. The utility model discloses an install the pneumatic cylinder, can reduce operating personnel's intensity of labour, promote the bush many times through the baffle, make the bush become the pine gradually and move in the stroke hole of crank pin, then will strike stake and bush through the piston rod and release the crank pin together, reduced personal injury accident hidden danger, ensured operation safety.
Chinese utility model CN213197361U a crank pin quick dismounting tool of a pumping unit, which comprises a pumping unit, wherein the pumping unit is internally connected with a crank pin, the inner side wall of the crank pin is connected with a copper bar, one side of the outer side wall of the crank pin is connected with a dismounting impactor, and the other side of the outer side wall of the crank pin is connected with a support frame; through the gyro wheel, the setting of backup pad and installation impinger, the staff of being convenient for is to the installation of crank pin, through driving motor, electric putter and cleaning brush's setting, make the staff in the in-process of clearing up the mounting hole, one side at the mounting hole is fixed with the supporting shoe to the fixed telescopic link of accessible, when making electric putter slowly stretch out and draw back under the control of external controller, the driving motor of electric putter one end drives the cleaning brush of adjusting on the telescopic link and polishes the clearance to the mounting hole, improve staff's cleaning efficiency, can not delay the going on fast of beam-pumping unit oil pumping work.
In view of the above, there is still a need to develop a pumping unit crank pin pulling device that is simple to operate, safe and reliable according to the field requirements.
Disclosure of Invention
The utility model aims at providing a device is extracted to beam-pumping unit crank pin, the device need not to use striking or pneumatic cylinder, thousand golden tops etc. to carry out the shore, can extract labour saving and time saving with the crank pin through the multitime revolution.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a crank pin pulling device of an oil pumping unit, which comprises a support frame, a crank pin pulling body and a crank pin clamp; the crank pin pulling-out body comprises a rotary handle, a rotary nut, a threaded screw rod and a pulling-out device force arm; the rotary handle, the threaded screw rod and the force arm of the puller are sequentially connected, and the threaded screw rod is provided with a rotary nut; the crank pin clamp is connected with the force arm of the puller; the crank pin pulling-out body is fixed through the supporting frame.
Furthermore, the force arm of the puller is composed of two L-shaped frames, and the crank pin is connected to the bottom ends of the L-shaped frames in a clamping mode.
Furthermore, the upper part of the L-shaped frame is provided with a rectangular hole.
Furthermore, the support frame is of a door-shaped frame structure, a through hole is formed in the middle of the support frame, the threaded screw rod penetrates through the through hole, and the rotary nut is located on the right side of the through hole.
Furthermore, a hanging ring is arranged at the upper part of the supporting frame.
Further, the crank pin clamp includes U type clamp and two clamp bolts.
The utility model discloses a pumping unit crank pin extraction device's application method:
firstly, fastening a U-shaped hoop through hoop bolts at two ends to enable the U-shaped hoop to lock a crank pin; then the support frame is supported on the surface of the crank of the oil pumping unit to form a support point through the adjustment of a rotating handle and an adjusting nut; after the crank pin and the support frame are fixed, the rotary nut at the upper end of the support frame is clamped by using a pipe wrench to continuously rotate, and the threaded screw rod and the puller force arm drive the crank pin to move outwards, so that the crank pin is pulled out.
Compared with the prior art, the device has the following beneficial effects:
adopt the device uses the breakout tongs to block the swivel nut of support frame upper end, continuously rotates, and the screw lead screw drives the crank pin with the extractor arm of force and moves outward to accomplish extracting of crank pin, operation process labour saving and time saving need not to use striking or pneumatic cylinder, thousand golden tops etc. to carry out the shore, effectively avoids the screw thread to damage, the emergence of crank top deformation scheduling problem.
Adopt the device can shorten crank pin change time, rate when having improved beam-pumping unit well production.
Drawings
Fig. 1 is a schematic structural view of a crank pin pulling-out device of an oil pumping unit according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a crank pin extractor in the crank pin extractor of the pumping unit according to embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a crank pin clamp in the oil pumping unit crank pin extraction device according to embodiment 1 of the present invention.
The reference signs are:
1. the oil pumping unit comprises a support frame, 2 through holes, 3 rotating handles, 4 rotating nuts, 5 threaded lead screws, 6 extractor force arms, 7U-shaped clamps, 8 clamp bolts, 9 oil pumping unit cranks, 10 crank pin bushes, 11 crank pins and 12 lifting rings.
Detailed Description
In order to make the objects, 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, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The invention will be further illustrated by the following specific examples and the accompanying drawings.
Example 1
As shown in fig. 1-3, the crank pin pulling device of the oil pumping unit comprises a support frame 1, a crank pin pulling body and a crank pin hoop; the crank pin pulling-out body comprises a rotating handle 3, a rotating nut 4, a threaded screw rod 5 and a pulling-out device force arm 6; the rotary handle 3, the threaded screw rod 5 and the puller moment arm 6 are sequentially connected, and the threaded screw rod 5 is provided with a rotary nut 4; the crank pin clamp is connected with the force arm 6 of the puller; the crank pin puller is fixed by the support frame 1.
The force arm of the puller is composed of two L-shaped frames, and the crank pin is connected to the bottom ends of the L-shaped frames in a clamping manner; the upper part of the L-shaped frame is provided with a rectangular hole.
The support frame 1 is a door-shaped frame structure, a through hole 2 is formed in the middle of the support frame, the threaded screw rod 5 penetrates through the through hole 2, and the rotary nut 4 is located on the right side of the through hole 2.
A hanging ring 12 is arranged on the upper part of the supporting frame 1.
The crank pin clamp comprises a U-shaped clamp 7 and two clamp bolts 8.
When the crank pin locking device works, the U-shaped hoop 7 is used for clamping the bearing step on the outer side of the crank pin body 11 and is tightened by two hoop bolts to ensure that the crank pin is locked; the upper part of the L-shaped frame of the puller force arm 6 is provided with a rectangular hole which is sleeved on the inverted T-shaped steel. The upper end of the L-shaped frame can freely move on the inverted T-shaped steel in the clamping process, so that the U-shaped hoop can be tensioned freely in the transverse direction during clamping; after the step of the crank pin body is clamped, the rotating nut 4 is adjusted, so that the whole crank pin pulling-out body is supported on the support frame 1.
The support frame 1 is supported on a crank 9 of the oil pumping machine by using a rotary handle 3 and a rotary nut 4 for adjustment, so as to form a support point. When the crank pin needs to be pulled out, the rotary nut 4 is clamped by using a pipe wrench, the rotary nut rotates clockwise, the threaded screw rod 5 continuously moves outwards, and the force arm 6 of the puller and the locked crank pin 11 move outwards together, so that the operation of pulling out the crank pin bush 10 from the crank pin 11 is completed. Before operation, the hanging ring 12 is fixed at a proper position of the oil pumping unit to prevent equipment from falling and injuring people, and when the pipe tongs are used, the edges of the rotating nuts are clamped uniformly, so that the slipping of the pipe tongs caused by over-violent force is avoided.
The connection mode of each component in the present application belongs to the known technology in the technical field, and is not described in detail. Such as welding, threaded connections, etc.
In the present application, the term "plurality" is intended to mean two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A crank pin pulling device of an oil pumping unit is characterized by comprising a support frame, a crank pin pulling body and a crank pin hoop;
the crank pin pulling-out body comprises a rotating handle, a rotating nut, a threaded screw rod and a pulling-out device force arm; the rotary handle, the threaded screw rod and the force arm of the puller are sequentially connected, and the threaded screw rod is provided with a rotary nut; the crank pin clamp is connected with the force arm of the puller; the crank pin pulling-out body is fixed through the supporting frame.
2. The extractor crank pin extractor of claim 1 wherein the extractor arm is comprised of two L-shaped frames and the crank pin clip is attached to the bottom ends of the L-shaped frames.
3. The pumping unit crank pin extractor as claimed in claim 2, wherein the L-shaped frame has a rectangular hole at an upper portion thereof.
4. The device for pulling out the crank pin of the pumping unit according to claim 1, wherein the support frame is a door-shaped frame structure, a through hole is formed in the middle of the support frame, the threaded screw rod penetrates through the through hole, and the rotating nut is located on the right side of the through hole.
5. The extractor of claim 1 or 4 wherein a lifting ring is mounted on the top of the support frame.
6. The pumping unit crank pin extractor of claim 1, wherein the crank pin clamp comprises a U-shaped clamp and two clamp bolts.
CN202222719231.0U 2022-10-17 2022-10-17 Crank pin pulling device of oil pumping unit Active CN218428141U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222719231.0U CN218428141U (en) 2022-10-17 2022-10-17 Crank pin pulling device of oil pumping unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222719231.0U CN218428141U (en) 2022-10-17 2022-10-17 Crank pin pulling device of oil pumping unit

Publications (1)

Publication Number Publication Date
CN218428141U true CN218428141U (en) 2023-02-03

Family

ID=85043188

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222719231.0U Active CN218428141U (en) 2022-10-17 2022-10-17 Crank pin pulling device of oil pumping unit

Country Status (1)

Country Link
CN (1) CN218428141U (en)

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