A device for reducing oil loss in a tower type pumping unit reduction drum

Abstract

The utility model relates to tower type oil pumping unit reduction roller technical field provides a device that slows down oil consumption in tower type oil pumping unit reduction roller, including slow down structure: slow down structure coaxially installed in the middle part of one end of main part structure, main part structure: main part structure includes roller body, left support shaft. The utility model discloses through setting slow down structure, through the auxiliary cooperation between oil nozzle and bearing end cover, when the roller body is operating, can design the grease baffle in the sealed cavity of roller body, can make the two sides of grease baffle open groove, can make the groove block and store oil, when the roller body is operating, can store oil in the limited space, prevent oil everywhere to swing, can apply the principle of fluid mechanics, and the splashing oil is blocked, and the speed slows down, makes the oil temperature drop, slows down the oxidation consumption of oil, and the speed of splashing oil slows down, and it is more difficult to break through the oil seal and flow out the cavity, reduces the consumption of oil leakage.

Description

Technical Field

[0001] This utility model relates to the field of deceleration drum technology for tower-type pumping units, and in particular to a device for reducing grease loss in the deceleration drum of a tower-type pumping unit. Background Technology

[0002] The pumping unit is the most important lifting equipment in a rod-type pumping system. Depending on whether it has a walking beam, it can be divided into walking beam pumping units and beamless pumping units. Currently, there are dozens of pumping unit manufacturers in China, and the product types have diversified. However, walking beam pumping units still dominate the market. Various new energy-saving walking beam pumping units, such as double-donkey-head pumping units, front-mounted pumping units, out-of-phase crank-balanced pumping units, front-mounted gas-balanced pumping units, lower-biased barbell series energy-saving pumping units, and conventional pumping units with narrow V-belt drives, have been promoted and applied in oilfields across the country and have achieved significant economic benefits. To this end, patent CN214145459U discloses a power drum assembly for a tower-type pumping unit. This utility model includes a drum and a motor. The motor is housed inside the drum, and a power transmission belt wound around the outer circumference of the drum pulls a guide rod and counterweight, causing them to reciprocate up and down. The motor is a switched reluctance motor, and an oil scraper is installed on the inner surface of the drum corresponding to the motor. When the motor is working, the oil scraper collects the cooling oil carried by the motor and sprays it onto the motor and reduction mechanism. The motor drives the drum to rotate through a planetary gear reduction mechanism installed inside the drum. Its advantages are: reasonable design, compact structure, reliable operation; the oil scraper and vent cap solve the problems of heat dissipation of the motor inside the drum and oil leakage from the drum, effectively extending the service life of the drum assembly, reducing non-production operation time, and lowering oil production costs. The existing technical solutions described above have the following drawbacks: Although the oil scraper and vent cap solve the problems of heat dissipation of the motor inside the drum and oil leakage, effectively extending the service life of the drum assembly, reducing non-production operation time, and lowering oil production costs, the reduction drum of the tower-type pumping unit currently experiences heavy loads during use, making the drum extremely prone to deformation. Based on current market feedback, the following problems exist: poor sealing leading to oil leakage, inability to withstand repeated forward and reverse rotation resulting in short lifespan, inability to withstand low-temperature environments causing drum jamming, excessive grease consumption, and poor bearing lubrication. Utility Model Content

[0003] The purpose of this invention is to provide a device for reducing grease loss in the deceleration drum of a tower-type pumping unit, in order to solve the defects of the existing tower-type pumping unit deceleration drum device, such as poor sealing and oil leakage, inability to adapt to repeated forward and reverse rotation, short lifespan, inability to adapt to low temperature environment, drum jamming, and excessive grease consumption.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a device for reducing grease loss in the reduction drum of a tower-type oil pumping unit, comprising; Mitigation structure: The mitigation structure is coaxially mounted at the middle of one end of the main structure; Main structure: The main structure includes a roller body, a left support shaft, and a left support base; The left support shaft is fixedly connected to the middle of one end of the drum body, and the left support seat is fixedly connected to the outside of the left support shaft; The damping structure includes an oil nozzle, a bearing end cap, an O-ring, screws and anti-loosening washers, a grease baffle, and an input shaft body. The grease nipple is installed on the outer side of one end of the left support shaft, the bearing end cap is fixedly connected to one end of the left support shaft, the O-ring is fixedly connected to one end of the bearing end cap, the screw and anti-loosening washer are fixedly connected to the inside of the grease nipple, the input shaft body is fixedly connected to one end of the left support shaft, and the grease baffle is fixedly connected to both sides of one end of the input shaft body.

[0005] Preferably, the damping structure further includes a first skeleton oil seal, an oil seal gasket, an input shaft end cover, an oil seal bushing, an O-ring II, a shaft snap ring, a bearing body, and a second skeleton oil seal; The first skeleton oil seal is fixedly connected to both sides of one end of the input shaft body, the oil seal gasket is fixedly connected to one side of the first skeleton oil seal, the input shaft end cap is fixedly connected to the front end of the first skeleton oil seal, the oil seal bushing is sleeved on the outside of the input shaft body, the second O-ring is fixedly connected to the connection between the input shaft body and the oil seal bushing, the shaft snap ring is installed at the connection between the input shaft body and the left support shaft, the bearing body is rotatably connected to both ends of the front part of the left support shaft, and the second skeleton oil seal is fixedly connected to one end of the left support seat.

[0006] Preferably, the left support shaft and the input shaft body are sealed by a second skeleton oil seal, and the bearing end cover and the input shaft end cover are sealed by an O-ring.

[0007] Preferably, the input shaft end cover and the oil seal bushing are sealed by a first skeleton oil seal, and the oil seal bushing and the input shaft body are sealed by an O-ring.

[0008] Preferably, the main structure further includes a left end cover of the roller; The left end cap of the roller is fixedly connected to the outer end of the roller body.

[0009] Preferably, the grease baffle is designed with grooves on both sides of the input shaft body.

[0010] Preferably, the number of the first skeleton oil seals is two sets.

[0011] The present invention provides a device for reducing grease loss in the reduction drum of a tower-type oil pumping unit, the advantages of which are: This invention, through the setting of a mitigation structure and the auxiliary cooperation between the grease nipple and the bearing end cover, allows for the design of a grease baffle plate within the sealed cavity of the drum body during operation. Grooves are opened on both sides of the grease baffle plate to block and store oil. This allows grease to be stored within a limited space during operation, preventing it from splashing everywhere. Utilizing fluid dynamics principles, it blocks and slows down splashed grease, lowering its temperature and reducing oxidation and consumption. Simultaneously, the slower speed of splashed grease makes it less likely to break through the oil seal and flow out of the cavity, reducing grease leakage and consumption. Attached Figure Description

[0012] Figure 1 This is an axonometric view of the present invention; Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the bearing end cap structure of this utility model; Figure 4 This is a schematic diagram of the grease-blocking plate structure of this utility model; Figure 5 This is a schematic diagram of the structure of the oil seal gasket of this utility model; Figure 6 This is a schematic diagram of the oil seal bushing structure of this utility model; Figure 7 This is a schematic diagram of the input shaft body structure of this utility model.

[0013] Explanation of the reference numerals in the figure: 11. Drum body; 12. Left support shaft; 13. Left support seat; 14. Left end cover of the drum; 21. Oil nozzle; 22. Bearing end cover; 23. O-ring one; 24. Screw and anti-loosening washer; 25. Grease baffle; 26. First skeleton oil seal; 27. Oil seal gasket; 28. Input shaft end cover; 29. ​​Oil seal bushing; 210. O-ring two; 211. Input shaft body; 212. Shaft snap ring; 213. Bearing body; 214. Second skeleton oil seal. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-7This utility model provides a device for reducing grease loss in the reduction drum of a tower-type oil pumping unit, comprising: Mitigation structure: The mitigation structure is coaxially mounted at the middle of one end of the main structure; Main structure: The main structure includes the drum body 11, the left support shaft 12, and the left support seat 13; The left support shaft 12 is fixedly connected to the middle of one end of the drum body 11, and the left support seat 13 is fixedly connected to the outside of the left support shaft 12; The main structure also includes the left end cover 14 of the roller; The left end cap 14 of the roller is fixedly connected to the outer end of the roller body 11; The damping structure includes an oil nozzle 21, a bearing end cover 22, an O-ring 23, screws and anti-loosening washers 24, a grease baffle 25, and an input shaft body 211. The grease nipple 21 is installed on the outer side of one end of the left support shaft 12, the bearing end cover 22 is fixedly connected to one end of the left support shaft 12, the O-ring 23 is fixedly connected to one end of the bearing end cover 22, the screw and anti-loosening washer 24 are fixedly connected to the inside of the grease nipple 21, the input shaft body 211 is fixedly connected to one end of the left support shaft 12, and the grease baffle 25 is fixedly connected to both sides of one end of the input shaft body 211. The damping structure also includes a first skeleton oil seal 26, an oil seal gasket 27, an input shaft end cover 28, an oil seal bushing 29, an O-ring 210, a shaft snap ring 212, a bearing body 213, and a second skeleton oil seal 214. The first skeleton oil seal 26 is fixedly connected to both sides of one end of the input shaft body 211, the oil seal gasket 27 is fixedly connected to one side of the first skeleton oil seal 26, the input shaft end cover 28 is fixedly connected to the front end of the first skeleton oil seal 26, the oil seal bushing 29 is sleeved on the outside of the input shaft body 211, the second O-ring 210 is fixedly connected to the connection between the input shaft body 211 and the oil seal bushing 29, the shaft snap ring 212 is installed at the connection between the input shaft body 211 and the left support shaft 12, the bearing body 213 is rotatably connected to the front two ends of the left support shaft 12, and the second skeleton oil seal 214 is fixedly connected to one end of the left support seat 13. The left support shaft 12 is sealed to the input shaft body 211 by a second skeleton oil seal 214, the bearing end cover 22 is sealed to the input shaft end cover 28 by an O-ring 23, the input shaft end cover 28 is sealed to the oil seal bushing 29 by a first skeleton oil seal 26, and the oil seal bushing 29 is sealed to the input shaft body 211 by an O-ring 210. With the auxiliary cooperation between the grease nipple 21 and the bearing end cover 22, when the drum body 11 is working, a grease baffle 25 can be designed in the sealing cavity of the drum body 11, and grooves can be opened on both sides of the grease baffle 25, which can block and store grease. Working principle: When the reduction drum of the tower-type pumping unit is working; First, the input shaft body 211 is driven to work, causing the input shaft of the input shaft body 211 to repeatedly rotate forward and backward, resulting in the splashing of lubricating grease in the cavity, the temperature rises, and oxidation and wear occurs quickly. In addition, the grease splashes very quickly, which may cause the grease to enter the oil lubrication area at the right end of the input shaft body 211 through the oil seal, causing lubricating oil contamination or flowing out of the cavity from the left end, causing wear. Next, by adding grease baffles 25 and designing grooves on both sides of the input shaft body 211, grease can be stored in a limited space. According to the principle of fluid dynamics, when the grease splashes, it is blocked, slowing down the grease and allowing it to flow slowly down the baffles to lubricate the bearing. In this step, when the drum body 11 is working, it can store grease in a limited space to prevent grease from splashing everywhere. It can use the principle of fluid dynamics to block the splashed grease, slow down its speed, and lower the temperature of the grease, thus slowing down the oxidation and consumption of the grease. At the same time, the speed of the splashed grease is slowed down, making it less likely to break through the oil seal and flow out of the cavity, thus reducing the external leakage and consumption of grease.

[0016] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for reducing grease loss in the reduction drum of a tower-type pumping unit, comprising a main structure, characterized in that: Mitigation structure: The mitigation structure is coaxially mounted at the middle of one end of the main structure; Main structure: The main structure includes a roller body (11), a left support shaft (12) and a left support seat (13). The left support shaft (12) is fixedly connected to the middle of one end of the drum body (11), and the left support seat (13) is fixedly connected to the outside of the left support shaft (12); The damping structure includes an oil nozzle (21), a bearing end cap (22), an O-ring (23), screws and anti-loosening washers (24), a grease baffle (25), and an input shaft body (211). The grease nipple (21) is installed on the outer side of one end of the left support shaft (12), the bearing end cover (22) is fixedly connected to one end of the left support shaft (12), the O-ring (23) is fixedly connected to one end of the bearing end cover (22), the screw and anti-loosening washer (24) are fixedly connected to the inside of the grease nipple (21), the input shaft body (211) is fixedly connected to one end of the left support shaft (12), and the grease baffle (25) is fixedly connected to both sides of one end of the input shaft body (211).

2. The device for reducing grease loss in the reduction drum of a tower-type pumping unit according to claim 1, characterized in that, The mitigation structure also includes a first skeleton oil seal (26), an oil seal gasket (27), an input shaft end cover (28), an oil seal bushing (29), an O-ring II (210), a shaft snap ring (212), a bearing body (213), and a second skeleton oil seal (214). The first skeleton oil seal (26) is fixedly connected to both sides of one end of the input shaft body (211), the oil seal gasket (27) is fixedly connected to one side of the first skeleton oil seal (26), the input shaft end cap (28) is fixedly connected to the front end of the first skeleton oil seal (26), the oil seal bushing (29) is sleeved on the outside of the input shaft body (211), the second O-ring (210) is fixedly connected to the connection between the input shaft body (211) and the oil seal bushing (29), the shaft snap ring (212) is installed at the connection between the input shaft body (211) and the left support shaft (12), the bearing body (213) is rotatably connected to the front two ends of the left support shaft (12), and the second skeleton oil seal (214) is fixedly connected to one end of the left support seat (13).

3. The device for reducing grease loss in the reduction drum of a tower-type pumping unit according to claim 2, characterized in that, The left support shaft (12) and the input shaft body (211) are sealed by a second skeleton oil seal (214), and the bearing end cover (22) and the input shaft end cover (28) are sealed by an O-ring (23).

4. The device for reducing grease loss in the reduction drum of a tower-type pumping unit according to claim 2, characterized in that, The input shaft end cap (28) and the oil seal bushing (29) are sealed by a first skeleton oil seal (26), and the oil seal bushing (29) and the input shaft body (211) are sealed by an O-ring two (210).

5. The device for reducing grease loss in the reduction drum of a tower-type pumping unit according to claim 1, characterized in that, The main structure also includes the left end cover (14) of the drum. The left end cap (14) of the roller is fixedly connected to the outer end of the roller body (11).

6. The device for reducing grease loss in the reduction drum of a tower-type pumping unit according to claim 2, characterized in that, The grease baffle (25) has grooves designed on both sides of the input shaft body (211).

7. The device for reducing grease loss in the reduction drum of a tower-type pumping unit according to claim 2, characterized in that, The first skeleton oil seal (26) consists of two sets.

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