Anti-deviation deceleration drum of tower type pumping unit

Abstract

The utility model relates to tower type pumping unit technical field, concretely is tower type pumping unit anti -migration reduction gear cylinder, including cylinder body and be used for controlling the reduction drive mechanism of cylinder body rotation, the outer surface of cylinder body is equipped with two first recesses for installing wellhead pumping rod conveyor belt and a second recess for installing counterweight conveyor belt, the cross section shape of first recess and second recess is same, and the inside of first recess and second recess all is equipped with pressure assembly, through setting first recess, second recess, pressure assembly and drive component, reached the effect that can drive multiple screws to rotate in step, replaced traditional screw -by -screw operation mode, significantly promoted the dismounting efficiency of conveyor belt, effectively reduced the equipment downtime, and multiple screws can simultaneously threadedly connect the thread hole of cylinder body, thereby can form full contact type fixation to conveyor belt, avoid the wrinkling, wear and tear problem of conveyor belt caused by uneven local stress.

Description

Technical Field

[0001] This utility model relates to the field of tower-type pumping unit technology, and in particular to the anti-deviation reduction drum of tower-type pumping unit. Background Technology

[0002] The reduction drum of a tower-type pumping unit is the core transmission component of the tower-type pumping unit. It transmits the motor power to the drum after the speed is reduced and the torque is increased through the reduction mechanism. The drive belt or wire rope drives the sucker rod and the counterweight box to reciprocate and complete the oil pumping operation.

[0003] A tower-type pumping unit power drum assembly is disclosed in Chinese Patent Publication No. CN214145459U. This power drum assembly includes a drum and a motor, which are fixedly mounted on the top platform of the tower-type pumping unit frame. The motor is located inside the drum, and a power transmission belt is wound around the outer circumference of the drum to pull the sucker rod and counterweight in a reciprocating motion. In comparison with related equipment and similar equipment, it has been found that existing drums often use a single-screw independent fastening structure to fix the conveyor belt. Disassembling and assembling the conveyor belt requires tightening multiple screws one by one, which is cumbersome. Especially in emergency maintenance scenarios in oilfields, this is time-consuming, labor-intensive, and significantly extends equipment downtime, affecting the continuity of pumping operations. Furthermore, during drum rotation, the conveyor belt is prone to wrinkling, wear, and even slippage and deviation due to uneven local stress. This not only shortens the service life of the conveyor belt but also causes the sucker rod and counterweight to move asynchronously, affecting pumping efficiency and potentially leading to equipment failure. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a tower-type pumping unit anti-deviation deceleration drum.

[0005] The objective of this utility model is achieved through the following technical solution: a tower-type pumping unit anti-deviation deceleration drum, comprising a drum body and a deceleration drive mechanism for controlling the rotation of the drum body. The outer surface of the drum body has two first grooves for installing the wellhead sucker rod conveyor belt and one second groove for installing the counterweight conveyor belt. The first groove and the second groove have the same cross-sectional shape. Both the first groove and the second groove are provided with a clamping assembly inside. The clamping assembly includes a pressure plate fitted inside the first groove or the second groove. Multiple screws are rotatably provided on the pressure plate. The pressure plate is provided with a drive assembly for controlling the synchronous rotation of the multiple screws. The pressure plate and the drum body are provided with threaded holes that match the position of each screw.

[0006] Preferably, the outer side of the pressure plate is provided with a receiving groove, the driving assembly includes a slider that is slidably disposed inside the receiving groove, multiple racks are fixedly installed on the side of the slider facing the inside of the receiving groove, a gear is fixedly provided at the top of the screw, multiple gears arranged in a row along the sliding direction of the slider mesh with one of the racks, a lead screw is threadedly connected to the middle of the slider, and the lead screw is rotatably connected to the pressure plate.

[0007] Preferably, the cross-sectional shape of the slider is cross-shaped, and the pressure plate is provided with slide rails at both ends of the slider to match it.

[0008] Preferably, the pressure plate has a rotating hole at one end of the lead screw, the lead screw is connected to the rotating hole through a damping bearing, and a driving block is fixed at the end of the lead screw away from the damping bearing. The cross-sectional shape of the driving block is hexagonal.

[0009] Preferably, the first groove includes a flat surface and a concave surface, the side of the pressure plate facing the first groove is in accordance with its shape, and the width of the second groove is greater than the width of the first groove.

[0010] Preferably, the reduction drive mechanism includes a main shaft, with supports and bearing seats at both ends of the main shaft, and a planetary reducer located inside the drum body. The planetary reducer is used to drive the drum body to rotate, and an oil storage structure is provided inside the bearing seat.

[0011] The beneficial effects of the anti-deviation reduction roller of this tower-type pumping unit are as follows: by setting the first groove, the second groove, the clamping component, and the driving component, it achieves the effect of driving multiple screws to rotate synchronously, replacing the traditional operation method of tightening screws one by one, significantly improving the disassembly and assembly efficiency of the conveyor belt, effectively reducing equipment downtime, ensuring the continuity of pumping operations, and at the same time, multiple screws can be threaded into the threaded holes of the roller body at the same time, thereby forming a full contact fixation of the conveyor belt, avoiding the problems of conveyor belt wrinkling and wear caused by uneven local stress. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a schematic diagram of the deceleration drive mechanism of this utility model; Figure 3 This is a first-view structural schematic diagram of the roller body of this utility model; Figure 4 This is a structural schematic diagram of the roller body of this utility model from a second perspective; Figure 5 This is a schematic diagram of the state of the drive assembly before the screw and the threaded hole of the roller body are connected. Figure 6 This is a schematic diagram showing the state of the drive assembly after the screw is connected to the threaded hole of the roller body. Figure 7 This is a schematic diagram showing the disassembled structure of the pressure plate and the first groove of this utility model; Figure 8 This is a schematic diagram of the structure of the first groove of this utility model; Figure 9 This is a schematic diagram of the structure of the drive assembly and the clamping assembly of this utility model; Figure 10 This is a schematic diagram showing the disassembled structure of the driving component and the clamping component of this utility model.

[0014] In the diagram: 1. Roller body; 101. First groove; 102. Second groove; 2. Reduction drive mechanism; 201. Main shaft; 202. Support; 203. Bearing seat; 204. Planetary reducer; 205. Oil storage structure; 3. Clamping assembly; 301. Pressure plate; 3011. Receiving groove; 3012. Slide rail; 302. Screw; 4. Drive assembly; 401. Slider; 402. Rack; 403. Gear; 404. Lead screw; 4041. Damping bearing; 4042. Drive block; 5. Threaded hole. Detailed Implementation

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0017] like Figures 1 to 10As shown, the tower-type pumping unit anti-deviation reduction drum includes a drum body 1 and a reduction drive mechanism 2 for controlling the rotation of the drum body 1. The outer surface of the drum body 1 has two first grooves 101 for installing the wellhead sucker rod conveyor belt and one second groove 102 for installing the counterweight conveyor belt. The first grooves 101 and second grooves 102 have the same cross-sectional shape. Both the first and second grooves 101 and 102 are equipped with clamping components 3. The clamping components 3 include a pressure plate 301 fitted inside the first groove 101 or the second groove 102. Multiple screws 302 are rotatably mounted on the pressure plate 301. The pressure plate 301 is equipped with a drive component 4 for controlling the synchronous rotation of the multiple screws 302. The pressure plate 301 and the drum body 1 are each provided with a threaded hole 5 corresponding to the position of each screw 302. Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, the first groove 101 includes a flat surface and a concave surface. The side of the pressure plate 301 facing the first groove 101 matches its shape. The width of the second groove 102 is greater than the width of the first groove 101. By adopting a combination structure of flat and concave surfaces, the pressure plate 301 and the groove shape are precisely matched. After being tightened by the screw 302, the conveyor belt can be fixed in full contact, avoiding the problem of conveyor belt wrinkling and wear caused by uneven local force. At the same time, the stable clamping effect ensures that when the drum body 1 rotates, the sucker rod conveyor belt and the counterweight conveyor belt move synchronously, effectively preventing the conveyor belt from slipping and running off-center, and improving the reliability of the pumping unit.

[0018] like Figure 5 , Figure 6 , Figure 7 , Figure 9 and Figure 10As shown, a receiving groove 3011 is provided on the outer side of the pressure plate 301. The driving assembly 4 includes a slider 401 slidably disposed inside the receiving groove 3011. Multiple racks 402 are fixedly installed on the side of the slider 401 facing the inside of the receiving groove 3011. A gear 403 is fixedly installed at the top of the screw 302. Multiple gears 403 arranged in a row along the sliding direction of the slider 401 mesh with one of the racks 402. A lead screw 404 is threadedly connected to the middle of the slider 401. The lead screw 404 is rotatably connected to the pressure plate 301. The cross-sectional shape of the slider 401 is cross-shaped. The pressure plate 301 has corresponding fittings at both ends of the slider 401. The slide rail 3012, through the sliding engagement of the slider 401 and the slide rail 3012, can improve the stability of the slider 401 and the rack 402 during sliding. In use, by rotating the lead screw 404, the slider 401 is threadedly connected to the lead screw 404, and multiple gears 403 arranged in a row along the sliding direction of the slider 401 mesh with one of the racks 402. When multiple racks 402 slide, multiple gears 403 can drive multiple screws 302 to rotate synchronously, replacing the traditional operation method of tightening screws 302 one by one. This significantly improves the disassembly and assembly efficiency of the conveyor belt, effectively reduces equipment downtime, and ensures the continuity of oil pumping operations.

[0019] like Figure 10 As shown, a rotating hole is provided at one end of the pressure plate 301 located on the lead screw 404. The lead screw 404 is connected to the rotating hole through a damping bearing 4041. A drive block 4042 is fixed at the end of the lead screw 404 away from the damping bearing 4041. The drive block 4042 has a hexagonal cross-section. By setting the damping bearing 4041, the alternating load vibration generated during the rotation of the drum body 1 can be effectively offset, preventing the screw 302 from loosening its threaded connection with the drum body 1, and preventing faults such as the pressure plate 301 falling off and the conveyor belt shifting. (The damping bearing 4041 contains a damping medium inside. When the shaft rotates, the damping medium flows and forms a thin oil film inside the bearing. This oil film generates resistance under external force and absorbs vibration energy, thereby achieving a shock absorption effect.) Through the hexagonal drive block 4042, a power tool can be used with an internal hex socket to control the lead screw 404, thereby further improving the installation efficiency of the pressure plate 301.

[0020] like Figure 2As shown, the reduction drive mechanism 2 includes a main shaft 201. Supports 202 and bearing seats 203 are respectively provided at both ends of the main shaft 201. A planetary reducer 204 is provided inside the main shaft 201 located in the drum body 1. The planetary reducer 204 is used to drive the drum body 1 to rotate. An oil storage structure 205 is provided inside the bearing seat 203. The motor adopts an external installation design and is connected to the main shaft 201. The external motor heat dissipation channel is unobstructed, which can effectively reduce the motor failure rate. At the same time, it avoids the influence of high temperature on the lubricating oil performance of the reduction drive mechanism 2, and indirectly improves the transmission efficiency and operating stability of the reduction drive mechanism 2.

[0021] The work process is as follows: S1: During installation, the conveyor belt is placed into the first groove 101 or the second groove 102, and then the pressure plate 301 is fastened. S2: When the pressure plate 301 is engaged in the first groove 101 or the second groove 102, the screw 404 is rotated by the drive block 4042. Then, the slider 401 is threadedly connected to the screw 404, and multiple gears 403 arranged in a row along the sliding direction of the slider 401 mesh with one of the racks 402. This allows multiple racks 402 to slide, and multiple gears 403 to drive multiple screws 302 to rotate synchronously. S3: When multiple screws 302 rotate synchronously, multiple screws 302 can be threadedly connected to the threaded hole 5 of the roller body 1 at the same time, thereby forming a full contact fixation of the conveyor belt and avoiding the problem of conveyor belt wrinkling and wear caused by uneven local force. S4: In summary, multiple gears 403 can drive multiple screws 302 to rotate synchronously, replacing the traditional method of turning screws 302 one by one, significantly improving the disassembly and assembly efficiency of the conveyor belt, effectively reducing equipment downtime, and ensuring the continuity of oil pumping operations.

[0022] The speed reduction drive mechanism 2 described in this application is known in the art, therefore its specific structure and working principle are not described in detail.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A tower-type pumping unit anti-deviation reduction drum, characterized in that: The device includes a drum body (1) and a speed reduction drive mechanism (2) for controlling the rotation of the drum body (1). The outer surface of the drum body (1) has two first grooves (101) for installing the wellhead sucker rod conveyor belt and a second groove (102) for installing the counterweight conveyor belt. The first groove (101) and the second groove (102) have the same cross-sectional shape. Both the first groove (101) and the second groove (102) are provided with a clamping assembly (3). The clamping assembly (3) includes a pressure plate (301) fitted inside the first groove (101) or the second groove (102). Multiple screws (302) are rotatably provided on the pressure plate (301). A drive assembly (4) for controlling the synchronous rotation of the multiple screws (302) is provided on the pressure plate (301). The pressure plate (301) and the roller body (1) are provided with threaded holes (5) that are adapted to each screw (302) at their respective positions.

2. The anti-deviation reduction drum of the tower-type pumping unit according to claim 1, characterized in that: The pressure plate (301) has a receiving groove (3011) on its outer side. The driving assembly (4) includes a slider (401) that is slidably disposed inside the receiving groove (3011). Multiple racks (402) are fixedly installed on the side of the slider (401) facing the inside of the receiving groove (3011). A gear (403) is fixedly disposed at the top of the screw (302). Multiple gears (403) arranged in a row along the sliding direction of the slider (401) mesh with one of the racks (402). A lead screw (404) is threadedly connected to the middle of the slider (401). The lead screw (404) is rotatably connected to the pressure plate (301).

3. The anti-deviation reduction drum of the tower-type pumping unit according to claim 2, characterized in that: The slider (401) has a cross-shaped cross section, and the pressure plate (301) is provided with slide rails (3012) at both ends of the slider (401) to match it.

4. The anti-deviation reduction drum of the tower-type pumping unit according to claim 2, characterized in that: The pressure plate (301) has a rotating hole at one end of the lead screw (404). The lead screw (404) is connected to the rotating hole through a damping bearing (4041). A driving block (4042) is fixed at the end of the lead screw (404) away from the damping bearing (4041). The cross-sectional shape of the driving block (4042) is hexagonal.

5. The anti-deviation reduction drum of the tower-type pumping unit according to claim 1, characterized in that: The first groove (101) includes a flat surface and a concave surface. The side of the pressure plate (301) facing the first groove (101) is in line with its shape. The width of the second groove (102) is greater than the width of the first groove (101).

6. The anti-deviation reduction drum of the tower-type pumping unit according to claim 1, characterized in that: The speed reduction drive mechanism (2) includes a main shaft (201), with a support (202) and a bearing seat (203) at both ends of the main shaft (201). The main shaft (201) is located inside the drum body (1) and is equipped with a planetary reducer (204). The planetary reducer (204) is used to drive the drum body (1) to rotate. The bearing seat (203) is equipped with an oil storage structure (205).

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