Special tool for disassembling connecting rod bearing of oil pumping unit
By designing a special tool for disassembling the connecting rod bearing of an oil pumping unit, and utilizing the power and structural design of an air hammer, the problem of difficult crank pin disassembly was solved, achieving a safe and efficient disassembly process, reducing damage frequency and cost, and improving equipment utilization and output.
Patent Information
- Application Number
- CN202520009538.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-03
AI Technical Summary
During the maintenance of oil pumping units, the lack of suitable special tools often leads to severe damage to the crank pins, resulting in problems such as difficult disassembly, numerous safety hazards, frequent replacements, high costs, low equipment utilization, and production downtime.
A special tool for disassembling connecting rod bearings of oil pumping units has been designed, including a sleeve, a thickened steel plate, a fixing nut, a groove, and a ring. It uses the power of an air hammer to quickly disassemble the crank pin. The vertical rod and the locking block cooperate to prevent the crank pin from detaching from the sleeve, ensuring safe and efficient disassembly.
It achieves a safe and labor-saving disassembly process, reduces manpower and material waste, lowers the frequency of crank pin damage, improves equipment utilization and output, and reduces safety risks and production costs.
Smart Images
Figure CN223656930U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to special tool technical field, more specifically, relate to the special tool of oil pumping unit connecting rod bearing dismounting. BACKGROUND
[0002] In the operation process of oil pumping unit, the crank pin is damaged seriously due to various reasons, and the crank pin is not replaced for a long time during the maintenance process, so there is no suitable special tool for the crank pin, which leads to the fact that the crank pin cannot be manually removed normally during the maintenance and replacement process, and the manual installation and disassembly belong to high-altitude operation, and the operator can be easily thrown to the ground during the disassembly process with a hammer, and the hammer can hit the human body, so there are many safety hazards. When installing, the manual hammer fastening is not in place, and sometimes it needs to be replaced once every few days, which leads to repeated maintenance and serious waste of manpower and materials. After using the special tool, the fastening and disassembly of the air gun are convenient and labor-saving, the crank pin is more tightly fastened after fastening, and the crank pin is not easily damaged, which reduces the maintenance frequency. Because there is no special tool, the manual fastening is not in place, and the crank pin is frequently damaged and replaced after a period of time, which increases the cost, and the long-term shutdown caused by the disassembly of the crank pin screw leads to the impact on the production task, therefore, we provide the special tool for the dismounting of the oil pumping unit connecting rod bearing. CONTENT OF THE UTILITY MODEL
[0003] The utility model aims at providing the special tool for the dismounting of the oil pumping unit connecting rod bearing to solve the problems in the above background technology.
[0004] In the operation process of oil pumping unit, the crank pin is damaged seriously due to various reasons, and the crank pin is not replaced for a long time during the maintenance process, so there is no suitable special tool for the crank pin.
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme.
[0006] The special tool for the dismounting of the oil pumping unit connecting rod bearing comprises a sleeve pipe, a thickened steel plate is fixedly connected to the outside of the sleeve pipe, a fixed nut is fixedly connected to the outside of the thickened steel plate, a recess is arranged in the inside of the sleeve pipe, the tail of the sleeve pipe is welded with a thickened steel plate, four recesses with the same size as the crank pin are cut at the front end of the sleeve pipe, the crank pin can be firmly clamped, the air gun sleeve pipe wrench can be fixed on the fixed nut at the tail, the crank pin can be clamped, the air gun power is utilized to quickly dismount the crank pin, the four recesses are symmetrically distributed, a circular ring is arranged on the outside of the sleeve pipe, the circular ring is rotatably connected with the sleeve pipe, a horizontal rod is fixedly connected to the outside of the circular ring and located on one side of the recess, and the vertical rod is fixedly connected to the outside of the horizontal rod. When the circular ring is rotated, the circular ring drives the vertical rod to rotate to the inside of the recess through the horizontal rod, so that the crank pin clamped in the recess is blocked.
[0007] Preferably, the inner part of the circular ring is provided with a sliding groove, a sliding rod is slidably connected in the sliding groove, and the sliding rod is fixedly connected with the sleeve. The sliding groove and the sliding rod are used for limiting the circular ring, so that the circular ring cannot be separated from the sleeve.
[0008] Preferably, a blind hole is formed in the inner part of the sliding rod, a clamping block is slidably connected in the blind hole, a spring is arranged between the clamping block and the blind hole, a clamping groove is formed in the inner part of the circular ring, the clamping groove is communicated with the sliding groove, and the clamping groove and the clamping block are used in cooperation. The position of the rotated circular ring is limited by the clamping block and the clamping groove. When the clamping block is clamped in the clamping groove, the vertical rod is blocked in the inner side of the groove.
[0009] Preferably, the outer side wall of the clamping block is attached to the inner side wall of the blind hole, and the clamping block is closely attached to the blind hole, so that the clamping block slides more stably in the blind hole.
[0010] Preferably, the inner part of the sleeve is provided with a slope, and the inner side of each groove is provided with two slopes, which is more conducive to the clamping of the crank pin into the groove.
[0011] Preferably, the vertical rod is in a circular arc structure, the center of the vertical rod in the circular arc structure coincides with the center of the sleeve, the vertical rod is attached to the sleeve, and the vertical rod, the horizontal rod and the circular ring can be limited.
[0012] Compared with the prior art, the utility model has the advantages that:
[0013] 1) It is convenient and labor-saving to fasten and disassemble the air gun, the crank pin is more tightly fastened after being fastened, the damage of the crank pin is avoided, the yield is improved, and the cost is saved;
[0014] 2) It is convenient to disassemble, manpower is saved, the frequency of frequently replacing the crank pin due to improper fastening is reduced, and the equipment utilization rate is improved;
[0015] 3) The cost is saved, and the service life of the equipment is prolonged;
[0016] 4) The replacement time is shortened, the production is resumed as soon as possible, the yield and the equipment utilization rate are improved;
[0017] 5) The safety risk of the operator is reduced due to frequent replacement;
[0018] 6) The safety accidents of falling and bruising caused by personnel in operation are prevented;
[0019] 7) The fire accidents caused by the welding and cutting of the crank pin during the disassembly process are avoided. BRIEF DESCRIPTION OF DRAWINGS
[0020] Fig. 1 It is a whole structure schematic view of the utility model;
[0021] Fig. 2 It is the structure schematic view of the chute of the utility model;
[0022] Fig. 3 It is the structure schematic view of the ring of the utility model;
[0023] Fig. 4 It is the section view schematic view of the slide bar of the utility model.
[0024] Mark explanation in drawing: 1, sleeve; 2, thick steel plate; 3, fixed nut; 4, recess; 5, ring; 6, cross bar; 7, vertical bar; 8, chute; 9, slide bar; 10, blind hole; 11, clamping block; 12, spring; 13, clamping groove; 14, inclined surface. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range protected by the utility model.
[0026] Please refer to Figs. 1 to 4 , the beam bearing of pumping unit is detached special tool, including sleeve 1, the outside fixed connection of sleeve 1 has thick steel plate 2, the outside fixed connection of thick steel plate 2 has fixed nut 3, the inside of sleeve 1 is set with recess 4, sleeve 1 tail welding thick steel plate 2, cutting four recesses 4 of the same size as the crank pin in the front end of sleeve 1, can firmly hold, be applicable to the fixed screw nut 3 of wind cannon sleeve cylinder wrench in tail, can hold the crank pin, utilize the power of wind cannon, quickly dismounts the crank pin, recess 4 has four, four recesses 4 are symmetrically distributed, the outside of sleeve 1 is sleeved with ring 5, ring 5 is rotatably connected with sleeve 1, the outside of ring 5 and located one side fixed connection of recess 4 has cross bar 6, the outside fixed connection of cross bar 6 has vertical bar 7, when rotating ring 5, ring 5 will drive vertical bar 7 to rotate to the inside of recess 4 through cross bar 6, to block the crank pin inserted in the inside of recess 4, prevent the crank pin from being disassembled after falling off and separating from sleeve 1.
[0027] Further, the inside of ring 5 is provided with chute 8, the inside of chute 8 is slidably connected with slide bar 9, slide bar 9 is fixedly connected with sleeve 1, the ring 5 is limited by using chute 8 and slide bar 9, so that the ring 5 will not separate from the sleeve 1, so that the ring 5 will only rotate on the sleeve 1.
[0028] Further, the inside of the slide rod 9 is provided with a blind hole 10, the inside of the blind hole 10 is slidably connected with a clamping block 11, the spring 12 is arranged between the clamping block 11 and the blind hole 10, the inside of the circular ring 5 is provided with a clamping groove 13, the clamping groove 13 is communicated with the sliding groove 8, the clamping groove 13 is used in cooperation with the clamping block 11, the position of the rotated circular ring 5 is limited by the clamping block 11 and the clamping groove 13, when the clamping block 11 is clamped with the clamping groove 13, the vertical rod 7 is blocked in the inside of the groove 4, thereby preventing the crank pin from being directly separated from the sleeve 1 after being disassembled.
[0029] Further, the outside wall of the clamping block 11 is attached to the inside wall of the blind hole 10, the clamping block 11 is closely attached to the blind hole 10, so that the clamping block 11 is more stable when sliding in the blind hole 10, and the clamping block 11 can be prevented from shaking in the blind hole 10.
[0030] Further, the inside of the sleeve 1 is provided with a slope 14, the inside of each groove 4 is provided with two slopes 14, and the two slopes 14 are arranged at the opening of the groove 4, which is more conducive to the crank pin being clamped into the groove 4.
[0031] Further, the vertical rod 7 is in a circular arc structure, the center of the circular arc structure of the vertical rod 7 is coincided with the center of the sleeve 1, so that the vertical rod 7 is attached to the sleeve 1, and the vertical rod 7, the horizontal rod 6 and the circular ring 5 can be limited, and the stability of the whole is ensured.
[0032] The use steps of the utility model are as follows: when the special tool for disassembling the connecting rod bearing of the oil pumping unit is used, the sleeve matched with the fixed nut 3 is mounted on the air gun, then the fixed nut 3 is clamped with the sleeve, the crank pin is clamped with the groove 4 on the sleeve 1, then the circular ring 5 on the sleeve 1 is rotated, the circular ring 5 drives the vertical rod 7 to rotate to the inside of the groove 4 through the horizontal rod 6, after the vertical rod 7 is rotated in place, the clamping block 11 is automatically clamped with the clamping groove 13 under the elastic force of the spring 12, so that the circular ring 5 is positioned, and then the crank pin is blocked by the vertical rod 7, the crank pin can be disassembled after the air gun is started, due to the blocking of the vertical rod 7, the crank pin will not be directly separated from the sleeve 1 after being disassembled, so that the situation that the crank pin falls by itself can be avoided, the utility model is fast and labor-saving in fastening and disassembling, the crank pin is more fastened after being fastened, and the crank pin is not easy to be damaged, the yield is improved, the cost is saved, the disassembly is convenient, the manpower is saved, the frequency of frequently replacing the crank pin due to fastening is not in place is reduced, the equipment utilization rate is improved, the cost is saved, the equipment life is prolonged, the replacement time is shortened, the production is resumed as soon as possible, the yield and the equipment utilization rate are improved, the safety risk of the operator is reduced due to frequent replacement, the safety accidents of workers falling and being injured by being hit are prevented, the fire accidents are avoided in the process of disassembling the crank pin due to the fact that the crank pin cannot be disassembled, welding and cutting by electricity are used, and the safety accidents of workers are avoided.
[0033] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A special tool for dismounting the bearing of the connecting rod of a pumping unit, comprising a sleeve (1), the outer part of which is fixedly connected to a thickened steel plate (2), characterized in that: The thickened steel plate (2) is externally fixedly connected with a fixed nut (3), the sleeve (1) is internally provided with a groove (4), the groove (4) is symmetrical and has four, the sleeve (1) is externally sleeved with a circular ring (5), the circular ring (5) is rotatably connected with the sleeve (1), the circular ring (5) is externally and fixedly connected with a horizontal rod (6) on one side of the groove (4), and the horizontal rod (6) is externally fixedly connected with a vertical rod (7).
2. The special tool for dismounting of the bearing of the beam of the pumping unit according to claim 1, characterized in that: The circular ring (5) is internally provided with a sliding groove (8), the sliding groove (8) is internally and slidably connected with a sliding rod (9), and the sliding rod (9) is fixedly connected with the sleeve (1).
3. The special tool for dismounting of the bearing of the connecting rod of the pumping unit according to claim 2, characterized in that: The sliding rod (9) is internally provided with a blind hole (10), the blind hole (10) is internally and slidably connected with a clamping block (11), a spring (12) is arranged between the clamping block (11) and the blind hole (10), the circular ring (5) is internally provided with a clamping groove (13), the clamping groove (13) is communicated with the sliding groove (8), and the clamping groove (13) is used in cooperation with the clamping block (11).
4. The special tool for dismounting of the bearing of the connecting rod of the pumping unit according to claim 3, characterized in that: The outer side wall of the clamping block (11) is attached to the inner side wall of the blind hole (10).
5. The special tool for dismounting of the bearing of the connecting rod of the pumping unit according to claim 1, characterized in that: The sleeve (1) is internally provided with an inclined surface (14).
6. The special tool for dismounting of the bearing of the pumping unit connecting rod according to claim 1, characterized in that: The vertical rod (7) is in a circular arc structure.