A sucker rod string clamp, a component of a pumping unit

Abstract

The present application discloses a sucker rod string suspension device for a pumping unit, belonging to the technical field of pumping units. It includes a suspension device body, and the suspension device body includes a first clamping block and a second clamping block, which are spliced and connected. By adding wear-resistant pads, this suspension device effectively prevents the sliding and wear of the steel wire rope inside the suspension device, ensuring the reliability and safety of the connection between the steel wire rope and the suspension device body. During the installation process, the levelness of the suspension device can be ensured, the installation accuracy can be improved, and the adjustment and installation are convenient. By setting a locator and a buffer mechanism, precise positioning of the U-shaped lock seat can be achieved, and it can play a buffering role when the suspension device is impacted, effectively reducing the damage of the impact force to the suspension device and the polished rod, and extending the service life of the equipment. By installing a pressure sensor at the bottom of the U-shaped lock seat, the pressure change inside the suspension device can be monitored in real time, facilitating the discovery of potential problems and timely handling, and improving the safety and reliability of the equipment.

Description

Technical Field

[0001] This application relates to the field of oil pumping unit technology, and more specifically, to a suspension rope device for an oil pumping unit. Background Technology

[0002] As a commonly used piece of equipment in oil extraction, the pumping unit's suspension rope is a key component, playing a crucial role in connecting the polished rod and the wire rope for power transmission. Traditional suspension ropes, due to wear and loosening, can lead to unstable connections between the wire rope and the suspension rope, affecting the normal operation of the pumping unit. The suspension rope is subjected to significant impact forces during operation, and the lack of effective cushioning devices can easily cause component damage and shorten its service life. Furthermore, monitoring the operating status of the suspension rope is difficult, making it hard to detect potential safety hazards in a timely manner. Therefore, we propose a new suspension rope design for pumping units. Utility Model Content

[0003] 1. Technical problems to be solved

[0004] The purpose of this application is to provide a suspension rope device for an oil pumping unit, which solves the technical problems mentioned in the background. This suspension rope device, by adding a wear-resistant pad, effectively prevents the steel rope from sliding and wearing inside the device, ensuring the reliability and safety of the connection between the steel rope and the suspension rope device body. During installation, it ensures the levelness of the suspension rope device, improving installation accuracy and facilitating adjustment and installation. By setting a locator and a buffer mechanism, it achieves precise positioning of the U-shaped lock seat and provides a buffering effect when the suspension rope device is subjected to impact, effectively reducing the impact force on the suspension rope device and the polished rod, extending the service life of the equipment. A pressure sensor installed at the bottom of the U-shaped lock seat monitors the pressure changes inside the suspension rope device in real time, facilitating the detection and timely handling of potential problems, thus improving the safety and reliability of the equipment.

[0005] 2. Technical Solution

[0006] This application provides a suspension rope device for an oil pumping unit, comprising:

[0007] The suspension device body includes a first clamping block and a second clamping block, which are spliced ​​together and threaded with four studs. The suspension device body has U-shaped grooves on both sides for inserting and installing steel ropes, and a circular groove in the middle for inserting and installing light rods.

[0008] A locator includes a U-shaped locking seat, which is sleeved on the outside of a light rod and slidably connected to a first clamping block and a second clamping block. A concave block is inserted into the U-shaped locking seat, and a screw is threaded onto the concave block. A slider is movably inserted into the screw, and the slider is slidably connected to the second clamping block. An L-shaped seat is fixedly installed on the second clamping block by bolts, and a pressure sensor is detachably and limitably installed on the L-shaped seat. The detection end of the pressure sensor abuts against the bottom surface of the U-shaped locking seat.

[0009] The buffer mechanism includes four piston rods. The first and second clamping blocks each have two oil chambers arranged in a rectangular pattern. The piston rods are slidably disposed in one of the oil chambers. The first and second clamping blocks are threaded with oil injection valves at the oil chambers. The upper end of the piston rod abuts against the bottom surface of the U-shaped lock seat.

[0010] By adopting the above technical solution, the suspension device body is assembled using four studs on the first and second clamping blocks. The smooth rod is inserted into the circular groove in the middle of the suspension device body, and U-shaped grooves are formed on both sides of the suspension device body. The steel rope is inserted into the U-shaped grooves on both sides of the suspension device body. The wear-resistant pads in the U-shaped grooves can reduce the wear of the steel rope. The nuts at both ends of the studs firmly fix the steel rope in the U-shaped grooves. By rotating the adjusting sleeve, the adjusting sleeve moves along the corresponding top sleeve, which facilitates the adjustment of the steel rope length. With the setting of the spirit level, it can adapt to different working requirements and helps to ensure that the suspension device body is in a horizontal state when installed, ensuring the normal operation of the equipment. By tightening the locking screw, the concave block forces the U-shaped locking seat to move and tighten. The device is tightly fitted onto the outside of the guide rod to achieve precise positioning of the guide rod. When the suspension device body is subjected to the impact force transmitted by the guide rod, the buffer mechanism installed at the bottom of the U-shaped lock seat starts to function. The piston rod slides in the oil chamber, compressing the hydraulic oil in the oil chamber. The energy of the impact force is consumed by the damping effect of the hydraulic oil. At the same time, the return spring is compressed. When the impact force disappears, the return spring pushes the piston rod back to the initial position, thereby achieving the buffering effect. The pressure sensor is installed on the second clamping block through the limit of the L-shaped seat. The detection end of the pressure sensor abuts against the bottom surface of the U-shaped lock seat, which can monitor the pressure on the U-shaped lock seat in real time and convert the pressure signal into an electrical signal and transmit it to the control system so that the staff can understand the working status of the suspension device in a timely manner.

[0011] Optionally, the first clamping block is provided with a rectangular cavity, the second clamping block is provided with two strip grooves and a sliding groove, the U-shaped locking seat is slidably installed along the rectangular cavity and the strip groove, and the slider is slidably disposed in the sliding groove.

[0012] By adopting the above technical solution, when the suspension device body is subjected to the impact force transmitted by the light rod, the light rod forces the U-shaped lock seat to have a tendency to slide along the two strip grooves and one slide groove, so that the buffer mechanism installed at the bottom of the U-shaped lock seat starts to work and achieves the buffering effect.

[0013] Optionally, the U-shaped lock seat has two rectangular slots, and the concave block is inserted and installed along the rectangular slots.

[0014] By adopting the above technical solution, the concave block and the U-shaped lock seat are connected by insertion. By rotating and tightening the screw, the end of the screw is connected to the slider, and the screw is threadedly connected to the concave block, thereby forcing the concave block to move the U-shaped lock seat away from the second clamping block, so that the U-shaped lock seat is positioned on the optical rod.

[0015] Optionally, two studs are provided at each of the U-shaped grooves, and nuts are threaded onto both ends of each stud. A wear-resistant pad is provided inside the U-shaped groove. The wear-resistant pad has a U-shaped structure, and the studs penetrate through the wear-resistant pad.

[0016] By adopting the above technical solution, the steel rope is inserted and installed through the U-shaped grooves on both sides of the suspension device body. The steel rope can be firmly fixed in the U-shaped groove by installing studs in the U-shaped grooves and tightening the nuts at both ends.

[0017] Optionally, a T-shaped post is fixedly connected to the bottom end of the steel rope, and a guide ring is fixedly provided on the outside of the T-shaped post. An adjusting screw sleeve is rotatably sleeved through the guide ring, and the adjusting screw sleeve is threadedly sleeved with the top sleeve.

[0018] By adopting the above technical solution, the bottom end of the steel rope is connected to the top sleeve, the adjusting screw sleeve and the T-shaped column. The top sleeve and the adjusting screw sleeve are threaded together, and the top sleeve abuts against the suspension device body, which can easily achieve the purpose of adjusting the length of the steel rope and facilitate the horizontal setting of the suspension device body.

[0019] Optionally, a connecting plate is fixedly connected to the top of each pair of piston rods, and a return spring is sleeved and installed on the outside of the piston rod and at the bottom of the connecting plate.

[0020] By adopting the above technical solution, a connecting plate is fixedly connected to the upper end of the piston rod. The connecting plate can increase the contact area with the bottom surface of the U-shaped lock seat. By setting a return spring, after the impact force disappears, the return spring pushes the piston rod back to the initial position, thereby achieving a buffering effect.

[0021] Optionally, a level bubble is fixedly installed on the first clamping block, and the level bubble is installed horizontally.

[0022] By adopting the above technical solution, the T-shaped column fixedly connected to the bottom of the steel rope is equipped with an adjusting screw sleeve. The adjusting screw sleeve is threadedly connected to the top sleeve. By rotating the adjusting screw sleeve, the length of the steel rope can be easily adjusted. Combined with the spirit level, it helps to ensure the levelness of the suspension device body during installation.

[0023] 3. Beneficial effects

[0024] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0025] 1. The suspension device body, by setting wear-resistant pads in the U-shaped groove, can effectively prevent the steel rope from sliding and wearing inside the suspension device, ensuring a more stable and reliable connection between the steel rope and the suspension device, reducing accidents caused by connection problems. The T-shaped post fixedly connected to the bottom of the steel rope is equipped with an adjusting screw sleeve on the outside. The adjusting screw sleeve is threaded with the top sleeve, which facilitates the adjustment of the steel rope length. Together with the spirit level, it helps to ensure the levelness of the suspension device during installation, improves installation accuracy, and facilitates adjustment and installation.

[0026] 2. By setting a positioner, only the screw needs to be tightened to allow the U-shaped lock seat to fit tightly with the guide rod, achieving precise positioning of the U-shaped lock seat. The piston rod, oil chamber and return spring in the buffer mechanism combine to form a damper, which can play a buffering role when the suspension rope device is impacted, effectively reducing the impact force on the suspension rope device and guide rod, and extending the service life of the equipment.

[0027] 3. By installing a pressure sensor at the bottom of the U-shaped lock seat, the pressure changes inside the suspension device can be monitored in real time, allowing staff to understand the working status of the suspension device in a timely manner, identify potential problems and deal with them promptly, thereby improving the safety and reliability of the equipment. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a suspension rope device for an oil pumping unit, as disclosed in a preferred embodiment of this application.

[0029] Figure 2 This is a partial structural dismantling diagram of a suspension rope device for an oil pumping unit disclosed in a preferred embodiment of this application;

[0030] Figure 3 This is a cross-sectional structural diagram of the suspension rope device body of a pumping unit accessory disclosed in a preferred embodiment of this application;

[0031] Figure 4 A preferred embodiment of this application discloses a suspension rope device for an oil pumping unit. Figure 3 Enlarged structural diagram at point A in the middle;

[0032] Figure 5This is a schematic diagram of the positioner structure of a suspension rope device for an oil pumping unit, as disclosed in a preferred embodiment of this application;

[0033] The following are the labels in the diagram: 1. Suspension device body; 11. First clamping block; 111. Rectangular cavity; 12. Second clamping block; 121. Strip groove; 122. Sliding groove; 13. U-shaped groove; 14. Stud; 15. Circular groove; 16. Oil cavity; 2. Steel rope; 21. T-shaped column; 22. Adjusting screw sleeve; 23. Top sleeve; 3. Smooth rod; 4. Wear-resistant pad; 5. Positioner; 51. U-shaped lock seat; 52. Concave block; 53. Screw; 54. Sliding block; 6. Buffer mechanism; 61. Oil injection valve; 62. Piston rod; 63. Connecting plate; 64. Return spring; 7. L-shaped seat; 8. Pressure sensor; 9. Horizontal bubble. Detailed Implementation

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] Reference Figures 1 to 5 This application provides a suspension rope device for an oil pumping unit, comprising:

[0036] The suspension device body 1 includes a first clamping block 11 and a second clamping block 12. The first clamping block 11 and the second clamping block 12 are spliced ​​together and four studs 14 are threadedly fixed. The suspension device body 1 has U-shaped grooves 13 on both sides for inserting and installing steel rope 2. The suspension device body 1 has a circular groove 15 in the middle for inserting and installing light rod 3.

[0037] Positioner 5 includes a U-shaped locking seat 51, which is sleeved on the outside of the light rod 3 and is slidably connected to the first clamping block 11 and the second clamping block 12. A concave block 52 is inserted into the U-shaped locking seat 51, and a screw 53 is threaded on the concave block 52. A slider 54 is movably inserted into the screw 53 and is slidably connected to the second clamping block 12. An L-shaped seat 7 is fixedly installed on the second clamping block 12 by bolts. A pressure sensor 8 is detachably limited and installed on the L-shaped seat 7. The detection end of the pressure sensor 8 abuts against the bottom surface of the U-shaped locking seat 51.

[0038] The buffer mechanism 6 includes four piston rods 62. Each of the first clamping block 11 and the second clamping block 12 has two oil chambers 16 arranged in a rectangular pattern. The piston rods 62 are slidably positioned in one of the oil chambers 16. Each of the first clamping block 11 and the second clamping block 12 has a threaded oil injection valve 61 threaded onto its oil chamber 16. The upper end of the piston rod 62 abuts against the bottom surface of the U-shaped lock seat 51. The suspension device body 1 is assembled using the first clamping block 11 and the second clamping block 12 with four studs 14. The bare rod 3... The steel rope 2 is inserted into the circular groove 15 in the middle of the suspension device body 1. U-shaped grooves 13 are formed on both sides of the suspension device body 1. The wear-resistant pads 4 in the U-shaped grooves 13 reduce the wear of the steel rope 2. The nuts at both ends of the stud 14 firmly fix the steel rope 2 in the U-shaped grooves 13. By rotating the adjusting sleeve 22, the adjusting sleeve 22 moves along the corresponding top sleeve 23, which facilitates the adjustment of the length of the steel rope 2. With the setting of the level bubble 9, it can adapt to different working needs. The design helps ensure the suspension device body 1 is horizontal during installation, guaranteeing normal operation. The locking screw 53 causes the concave block 52 to move the U-shaped locking seat 51, tightly fitting it onto the outside of the smooth rod 3, achieving precise positioning of the smooth rod 3. When the suspension device body 1 is subjected to impact force transmitted by the smooth rod 3, the buffer mechanism 6 installed at the bottom of the U-shaped locking seat 51 activates. The piston rod 62 slides within the oil chamber 16, compressing the hydraulic oil. The damping effect of the hydraulic oil dissipates the energy of the impact force, while the return spring 64 is compressed. When the impact force disappears, the return spring 64 pushes the piston rod 62 back to its initial position, thus achieving a buffering effect. A pressure sensor 8 is installed on the second clamping block 12 via an L-shaped seat 7. The detection end of the pressure sensor 8 abuts against the bottom surface of the U-shaped locking seat 51, enabling real-time monitoring of the pressure on the U-shaped locking seat 51 and converting the pressure signal into an electrical signal for transmission to the control system, allowing operators to promptly understand the suspension device's operating status.

[0039] Reference Figure 2 and Figure 3 The first clamping block 11 is provided with a rectangular cavity 111, and the second clamping block 12 is provided with two strip grooves 121 and a sliding groove 122. The U-shaped locking seat 51 is slidably installed along the rectangular cavity 111 and the strip groove 121, and the slider 54 is slidably disposed in the sliding groove 122. When the suspension rope body 1 is subjected to the impact force transmitted by the light rod 3, the light rod 3 forces the U-shaped locking seat 51 to have a sliding tendency along the two strip grooves 121 and the sliding groove 122, so that the buffer mechanism 6 installed at the bottom of the U-shaped locking seat 51 starts to work and achieves the buffering effect.

[0040] Reference Figure 1 and Figure 5The U-shaped lock seat 51 has two rectangular slots. The concave block 52 is inserted and installed along the rectangular slots. The concave block 52 and the U-shaped lock seat 51 are connected by insertion. By rotating and tightening the screw 53, since the end of the screw 53 is connected to the slider 54, and the screw 53 is threadedly connected to the concave block 52, the concave block 52 is forced to move the U-shaped lock seat 51 away from the second clamping block 12, so that the U-shaped lock seat 51 positions the light rod 3.

[0041] Reference Figure 2 and Figure 3 Two studs 14 are provided at each U-shaped groove 13, and nuts are threaded onto both ends of the studs 14. Wear-resistant pads 4 are provided inside the U-shaped groove 13. The wear-resistant pads 4 have a U-shaped structure, and the studs 14 pass through the wear-resistant pads 4. The steel rope 2 is inserted and installed through the U-shaped grooves 13 on both sides of the suspension device body 1. By installing the studs 14 at the U-shaped groove 13 and locking the nuts at both ends, the steel rope 2 can be firmly fixed in the U-shaped groove 13.

[0042] Reference Figure 1 and Figure 2 The bottom end of the steel rope 2 is fixedly connected to a T-shaped post 21. A guide ring is fixedly provided on the outside of the T-shaped post 21, and an adjusting screw sleeve 22 is rotatably sleeved through the guide ring. The adjusting screw sleeve 22 is threadedly sleeved with the top sleeve 23. The bottom end of the steel rope 2 is connected to the top sleeve 23, the adjusting screw sleeve 22 and the T-shaped post 21. The top sleeve 23 is threadedly sleeved with the adjusting screw sleeve 22. The top sleeve 23 abuts against the suspension device body 1, which can easily achieve the purpose of adjusting the length of the steel rope 2 and facilitate the horizontal setting of the suspension device body 1.

[0043] Reference Figure 3 and Figure 4 A connecting plate 63 is fixedly connected to the top of each pair of piston rods 62. A return spring 64 is sleeved and installed on the outside of the piston rod 62 and at the bottom of the connecting plate 63. The upper end of the piston rod 62 is fixedly connected to the connecting plate 63. The connecting plate 63 can increase the contact area with the bottom surface of the U-shaped lock seat 51. By setting the return spring 64, after the return spring 64 is compressed, when the impact force disappears, the return spring 64 pushes the piston rod 62 back to the initial position, thereby achieving a buffering effect.

[0044] Reference Figure 1 and Figure 3 A level bubble 9 is fixedly installed on the first clamping block 11. The level bubble 9 is installed horizontally. The T-shaped column 21, which is fixedly connected to the bottom of the steel rope 2, is connected to the outside of the adjustment screw sleeve 22. The adjustment screw sleeve 22 is threadedly connected to the top sleeve 23. By rotating the adjustment screw sleeve 22, the length of the steel rope 2 can be easily adjusted. Together with the level bubble 9, it helps to ensure the levelness of the suspension device body 1 during the installation process.

[0045] Working principle: When the pumping unit is working, the polished rod 3 is inserted into the circular groove 15 in the middle of the suspension device body 1. The U-shaped locking seat 51 is sleeved on the outside of the polished rod 3 and is slidably connected with the first clamping block 11 and the second clamping block 12. Through the locking screw 53, the concave block 52 is forced to press the U-shaped locking seat 51 in the opposite direction, so that the U-shaped locking seat 51 accurately positions the polished rod 3. The power is transmitted to the suspension device body 1 through the polished rod 3. The steel rope 2 is inserted into the U-shaped grooves 13 on both sides of the suspension device body 1. The wear-resistant pads 4 in the U-shaped grooves 13 can reduce the wear of the steel rope 2. The nuts at both ends of the stud 14 firmly fix the steel rope 2 in the U-shaped grooves 13. When the suspension device body 1 is subjected to the impact force transmitted by the polished rod 3, the buffer mechanism 6 installed at the bottom of the U-shaped locking seat 51 starts to work. Because high-pressure hydraulic oil is injected into each oil chamber 16 through the corresponding oil injection valve 61, the piston rod 62 slides in the oil chamber 16, compressing the hydraulic oil in the oil chamber 16, and through hydraulic... The damping effect of the oil dissipates the energy of the impact force, while the return spring 64 is compressed. When the impact force disappears, the return spring 64 pushes the piston rod 62 back to its initial position, thus achieving a buffering effect. The pressure sensor 8 is installed on the L-shaped seat 7, and its detection end abuts against the bottom surface of the U-shaped lock seat 51. It can monitor the pressure borne by the U-shaped lock seat 51 in real time and convert the pressure signal into an electrical signal to transmit to the control system so that the staff can understand the working status of the suspension device in a timely manner. The T-shaped column 21 fixedly connected to the bottom end of the steel rope 2 is externally connected to the adjusting screw sleeve 22 through the guide ring. The adjusting screw sleeve 22 is threadedly connected to the top sleeve 23, and the top sleeve 23 abuts against the suspension device body 1. With this design, the length of the steel rope 2 can be easily adjusted by rotating the adjusting screw sleeve 22. With the setting of the level bubble 9, it can adapt to different working requirements and help ensure that the suspension device body 1 is in a horizontal state when installed, thus ensuring the normal operation of the equipment.

Claims

1. A sucker rod hanger for a pumping unit, the sucker rod hanger comprising: Include: The suspension device body (1) includes a first clamping block (11) and a second clamping block (12). The first clamping block (11) and the second clamping block (12) are spliced ​​together and four studs (14) are threadedly fixed. The suspension device body (1) has U-shaped grooves (13) on both sides for inserting and installing steel ropes (2). The suspension device body (1) has a circular groove (15) in the middle for inserting and installing light rods (3). Positioner (5), the positioner (5) includes a U-shaped locking seat (51), the U-shaped locking seat (51) is sleeved on the outside of the light rod (3), and the U-shaped locking seat (51) is slidably connected to the first clamping block (11) and the second clamping block (12). The U-shaped locking seat (51) is inserted and fitted with a concave block (52), and a screw (53) is threaded on the concave block (52). A slider (54) is movably inserted into the screw (53), and the slider (54) is slidably connected to the second clamping block (12). An L-shaped seat (7) is fixedly installed on the second clamping block (12) by bolts. A pressure sensor (8) is detachably limited and installed on the L-shaped seat (7). The detection end of the pressure sensor (8) abuts against the bottom surface of the U-shaped locking seat (51). The buffer mechanism (6) includes four piston rods (62). The first clamping block (11) and the second clamping block (12) are each provided with two oil chambers (16) and are arranged in a rectangular shape. The piston rods (62) are slidably disposed in one oil chamber (16). The first clamping block (11) and the second clamping block (12) are threaded with oil injection valves (61) at the oil chambers (16). The upper end of the piston rod (62) abuts against the bottom surface of the U-shaped lock seat (51).

2. The suspension rope device for an oil pumping unit according to claim 1, characterized in that: The first clamping block (11) is provided with a rectangular cavity (111), and the second clamping block (12) is provided with two strip grooves (121) and a sliding groove (122). The U-shaped lock seat (51) is slidably installed along the rectangular cavity (111) and the strip groove (121), and the slider (54) is slidably disposed in the sliding groove (122).

3. The suspension rope device for an oil pumping unit according to claim 2, characterized in that: The U-shaped lock seat (51) has two rectangular slots, and the concave block (52) is inserted and installed along the rectangular slots.

4. The suspension rope device for an oil pumping unit according to claim 1, characterized in that: Two studs (14) are provided at each of the U-shaped grooves (13), and nuts are threaded onto both ends of the studs (14). A wear-resistant pad (4) is provided inside the U-shaped groove (13). The wear-resistant pad (4) has a U-shaped structure, and the studs (14) penetrate the wear-resistant pad (4).

5. A suspension rope device for an oil pumping unit according to claim 1, characterized in that: The bottom end of the steel rope (2) is fixedly connected to a T-shaped post (21). A guide ring is fixedly provided on the outside of the T-shaped post (21), and an adjusting screw sleeve (22) is rotated and sleeved through the guide ring. The adjusting screw sleeve (22) is threadedly connected to the top sleeve (23).

6. The suspension rope device for an oil pumping unit according to claim 1, characterized in that: A connecting plate (63) is fixedly connected to the top of each pair of piston rods (62), and a return spring (64) is sleeved and installed on the outside of the piston rod (62) and at the bottom of the connecting plate (63).

7. The suspension rope device for an oil pumping unit according to claim 1, characterized in that: A horizontal bubble (9) is fixedly installed on the first clamping block (11), and the horizontal bubble (9) is installed horizontally.

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