Automatic centralizing device for polish rod of oil pumping unit
By designing the automatic straightening device of the oil pump rod, the automatic straightening and stable movement of the light rod is achieved by using the straightening guide wheel and the adjustment of the ball head, the pack wear and liquid leakage caused by the deflection of the light rod is solved, and the normal operation of the oil pump machine is ensured.
Patent Information
- Application Number
- CN202421401741.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-19
AI Technical Summary
During long-term skewed work of the oil pump, the packing is easily worn and the sealing effect is reduced, which in turn causes liquid leakage in the wellhead area.
An automatic straightening device for the oil pump is designed, including the bar, support seat, straightening guide wheel, sealing chamber, adjusting ball head and shock absorbing mechanism. Through the sliding connection of the straightening guide wheel and the sliding connection of the ball head, the automatic straightening and stable movement of the bar are achieved.
It effectively solves the problem of skewed pole and wellhead, reduces the amount of offset wear between the pack and the pole, prevents liquid leakage, and ensures the normal and stable operation of the pole of the pumping machine.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of polished rods of oil pumping units, in particular to an automatic straightening device for polished rods of oil pumping units. Background Art
[0002] The oil pump is a kind of machine equipment for oil extraction, commonly known as the "kowtow machine". The oil pump is the most important lifting equipment in the rod pumping system. According to whether there is a walking beam, it can be divided into a walking beam type oil pump and a non-walking beam type oil pump. In fact, it is the same as the principle of pumping water from the wells we dig at home. The oil is also pumped up by the pumping action of a piston pull rod (sucker rod), and then sent away through the underground pipeline. The only difference is that the movement of this pull rod is driven by a motor. There are many types of oil pumps in China. The most common one is the one seen on TV with a large fan-shaped iron block, which moves back and forth, and is figuratively called a "kowtow machine".
[0003] If the polished rod is in a skewed working state for a long time during the working process, it is easy to cause the packing to wear out during the continuous back and forth working process, and then the overall sealing effect will be greatly reduced, directly causing the problem of liquid leakage in the wellhead area. In view of this, we propose an automatic straightening device for the polished rod of the oil pump. Utility Model Content
[0004] The utility model aims to provide an automatic straightening device for a polished rod of an oil pumping unit to solve the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A pumping unit polished rod automatic straightening device comprises a polished rod, a support seat is arranged on the outside of the polished rod, three groups of clamping plates are fixedly connected to the inside of the support seat, a straightening guide wheel is arranged on the clamping plate, one side of the straightening guide wheel is slidably connected to the outer wall of the polished rod, there are three straightening guide wheels, and the three straightening guide wheels are evenly arranged in a circular sequence, a sealing bin is fixedly connected to the bottom of the support seat, the polished rod is arranged inside the sealing bin, an adjusting ball head is arranged in the middle of the polished rod, the outside of the adjusting ball head is slidably connected to a ball head seat, a rubber valve is fixedly connected to the bottom of the ball head seat, and valve mouths are arranged on both sides of the rubber valve.
[0007] Preferably, a clamp head is provided at the bottom of the rubber valve, and the clamp head is arranged outside the polished rod.
[0008] Preferably, a shock absorbing mechanism is provided on one side of the support seat, and the shock absorbing mechanism includes a damper. The number of the dampers is four, and the four dampers are fixedly connected to one side of the support seat.
[0009] Preferably, a protective plate is fixedly connected to the left side of the damper, and a spring is sleeved on the outside of the damper. The protective plate is provided to protect the support seat.
[0010] Preferably, one end of the spring is fixedly connected to the protective plate, and the other end of the spring away from the protective plate is fixedly connected to the support seat. The spring is provided to drive the damper to rebound.
[0011] Preferably, a slide groove is provided on one side of the support seat, a sliding block is slidably connected inside the slide groove, and the sliding block is hinged to the protective plate through a connecting rod.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. Through the effective use of the pumping unit polished rod centralizer, the problem of deflection between the polished rod and the wellhead is solved. At the same time, the offset wear between the packing and the polished rod is reduced, preventing the problem of excessive wear on one side of the packing.
[0014] 2. When the movement center of the pumping unit's polished rod is offset, it is necessary to effectively adjust the fixing clamp under the pumping unit's polished rod centralizer, and then tighten it completely with bolts to achieve a good fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is a front cross-sectional view of the utility model;
[0017] Figure 3 For the utility model Figure 2 A magnified image of the middle A area;
[0018] Figure 4 For the utility model Figure 1 A magnified view of area B.
[0019] In the figure: 1. bare rod; 2. support seat; 3. straightening guide wheel; 4. sealing chamber; 5. ball head seat; 6. adjustment ball head; 7. rubber valve; 8. valve mouth; 9. clamp head; 10. shock absorbing mechanism; 1001. damper; 1002. protective plate; 1003. spring; 1004. slide groove; 1005. slider; 1006. connecting rod. 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] like Figure 1-4 As shown, an automatic straightening device for a polished rod of an oil pumping unit comprises a polished rod 1, a support seat 2 is arranged outside the polished rod 1, three groups of clamping plates are fixedly connected inside the support seat 2, a straightening guide wheel 3 is arranged on the clamping plate, one side of the straightening guide wheel 3 is slidably connected to the outer wall of the polished rod 1, there are three straightening guide wheels 3, and the three straightening guide wheels 3 are evenly arranged in a circumferential sequence, a sealing chamber 4 is fixedly connected to the bottom of the support seat 2, the polished rod 1 is arranged inside the sealing chamber 4, an adjustment ball head 6 is arranged in the middle of the polished rod 1, a ball head seat 5 is slidably connected to the outside of the adjustment ball head 6, a rubber valve 7 is fixedly connected to the bottom of the ball head seat 5, and valve mouths 8 are arranged on both sides of the rubber valve 7. A clamp head 9 is arranged at the bottom of the rubber valve 7, and the clamp head 9 is arranged outside the polished rod 1. A damping mechanism 10 is arranged on one side of the support seat 2, and the damping mechanism 10 comprises a damper 1001, and the number of the dampers 1001 is four, and the four dampers 1001 are fixedly connected to one side of the support seat 2. The left side of the damper 1001 is fixedly connected with a protective plate 1002, and the outer sleeve of the damper 1001 is provided with a spring 1003. The support seat 2 is protected by providing the protective plate 1002. One end of the spring 1003 is fixedly connected with the protective plate 1002, and the other end of the spring 1003 away from the protective plate 1002 is fixedly connected with the support seat 2. The damper 1001 is driven to rebound by providing the spring 1003. A slide groove 1004 is provided on one side of the support seat 2, and a slider 1005 is slidably connected inside the slide groove 1004, and the slider 1005 is hinged to the protective plate 1002 through a connecting rod 1006.
[0022] When in use, in actual processing work, the polished rod 1 is in the effective center position of the three straightening guide wheels 3. When the polished rod 1 works up and down, the straightening guide wheel 3 slowly pushes the polished rod 1 to move toward the vertical center line of the polished rod 1 according to the offset amount and offset direction of the polished rod 1. After the polished rod 1 returns to the correct vertical center line position, the straightening guide wheel 3 returns to a stress-free state. After the oil pump is started, the polished rod 1 will make a stable reciprocating motion under the transmission action of the automatic straightener to ensure the normal and stable operation of the polished rod 1 of the oil pump.
[0023] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. An automatic straightening device for a polished rod of an oil pumping unit, comprising a polished rod (1), characterized in that: A support seat (2) is arranged outside the light rod (1), three groups of clamping plates are fixedly connected inside the support seat (2), a straightening guide wheel (3) is arranged on the clamping plate, one side of the straightening guide wheel (3) is slidably connected to the outer wall of the light rod (1), the number of the straightening guide wheels (3) is three, and the three straightening guide wheels (3) are evenly arranged in a circular sequence, a sealing chamber (4) is fixedly connected to the bottom of the support seat (2), the light rod (1) is arranged inside the sealing chamber (4), an adjusting ball head (6) is arranged in the middle of the light rod (1), the outside of the adjusting ball head (6) is slidably connected to a ball head seat (5), the bottom of the ball head seat (5) is fixedly connected to a rubber valve (7), and valve mouths (8) are arranged on both sides of the rubber valve (7).
2. The automatic straightening device for a polished rod of an oil pumping unit according to claim 1, characterized in that: A clamp head (9) is arranged at the bottom of the rubber valve (7), and the clamp head (9) is arranged outside the polished rod (1).
3. The automatic straightening device for a polished rod of an oil pumping unit according to claim 2, characterized in that: A shock absorbing mechanism (10) is provided on one side of the support seat (2), and the shock absorbing mechanism (10) comprises a damper (1001). The number of the dampers (1001) is four, and the four dampers (1001) are fixedly connected to one side of the support seat (2).
4. The automatic straightening device for a polished rod of an oil pumping unit according to claim 3, characterized in that: A protective plate (1002) is fixedly connected to the left side of the damper (1001), and a spring (1003) is sleeved on the outside of the damper (1001).
5. The automatic straightening device for polished rod of an oil pumping unit according to claim 4, characterized in that: One end of the spring (1003) is fixedly connected to the protective plate (1002), and the other end of the spring (1003) away from the protective plate (1002) is fixedly connected to the support seat (2).
6. The automatic straightening device for polished rod of an oil pumping unit according to claim 5, characterized in that: A slide groove (1004) is provided on one side of the support seat (2), and a slider (1005) is slidably connected inside the slide groove (1004), and the slider (1005) is hinged to the protective plate (1002) through a connecting rod (1006).