Speed-adjustable gear transmission device of oil pumping unit

Abstract

The invention relates to the technical field of oil production engineering, in particular to a speed-adjustable gear transmission device of a pumping unit. The speed-adjustable gear transmission device of the oil pumping unit comprises a speed adjusting box body, a driven gear set, a driving gear set and a speed adjusting screw rod. An input shaft end cover of a reduction gearbox of the speed-adjustable gear transmission device of the oil pumping unit is mounted at an input shaft end cover seat of the reduction gearbox of the oil pumping unit, a driving shaft is connected with a motor to realize power transmission, and power is transmitted by a gear set, so that the power loss of the motor is reduced, and the operation stability of the oil pumping unit is improved; the original time-consuming and labor-consuming method for adjusting the stroke frequency by replacing a belt pulley is changed, and the stroke frequency adjustment of the oil pumping unit is realized by rotating the speed regulating screw rod and realizing the speed ratio conversion of high and low speed gears, so that the stroke frequency adjustment of the oil pumping unit is faster and more labor-saving, and the effective utilization of electric energy and mechanical energy is ensured, thereby achieving the purposes of reducing personnel investment and improving the working efficiency. And the stroke frequency adjustment of the oil pumping unit is quicker and more labor-saving, and the effective utilization of electric energy and mechanical energy is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of oil production engineering, and in particular to an adjustable speed gear transmission device for an oil pump. Background Art

[0002] The existing commonly used walking beam pump is the main oil production equipment in my country's oil fields. The operating power is mainly transmitted by the motor through the belt. During production, due to various reasons, the belt often burns out, causing the power transmission to be interrupted and the pump to stop. The pump is located in the wild and the road conditions are often complicated. The belt burns out and is not discovered in time, causing the motor to idle and waste electricity, and the pump to stop, affecting production capacity. The existing technology is that the motor drives the pump to operate through the belt transmission power. The existing technology has the following problems. The power loss caused by slipping during belt transmission causes waste of electricity; when the pump is heavily loaded, the belt often burns out, increasing the operation and maintenance cost; after the belt burns out, the pump will stop production and seriously affect the production capacity; the pump needs to adjust the stroke frequency by replacing pulleys of different diameters, which is inefficient. Summary of the invention

[0003] 1. Technical issues to be resolved The present invention provides an adjustable speed gear transmission device for an oil pump, so as to overcome the problems in the prior art that when the oil pump belt burns out, the motor idles and wastes electric energy, and the oil pump stops, affecting the production capacity and increasing the production and operation and maintenance costs.

[0004] (II) Technical solution To achieve the above-mentioned purpose, the present invention provides an adjustable speed gear transmission device for an oil pump, comprising: a speed regulating box; The speed regulating box body comprises: a speed regulating box shell and a speed regulating box side cover; One side of the speed regulating box housing is connected to the speed regulating box side cover, and the other side is provided with a reduction box input shaft end cover; The speed regulating box housing is provided with a refueling port at the upper end and an oil drain port at the lower end; The head of the speed regulating box housing is provided with a driven gear set, and the tail of the speed regulating box housing is provided with a driving gear set; A keyway is provided on one side of the head of the speed regulating box housing, and a driven gear set is sleeved on the keyway; The rear part of the speed regulating box housing is provided with a driving shaft, bearings are press-fitted at both ends of the driving shaft, the driving shaft is provided with a gear spline hole larger than the shaft diameter of the driving shaft, and a driving gear set is sleeved on the gear spline hole; A speed regulating screw positioning hole is provided on one side of the rear end of the speed regulating box housing, the speed regulating screw is installed in the speed regulating screw positioning hole, the fork driving sleeve is sleeved on the front end of the speed regulating screw, the front end of the fork driving sleeve is connected with a speed regulating fork, and the speed regulating fork is inserted between the active gear sets to push the active gear sets to perform speed ratio conversion.

[0005] Preferably, the driven gear set includes: a driven low-speed gear, a driven high-speed gear and a reduction gear input sleeve. The outer diameter of the driven low-speed gear is larger than that of the driven high-speed gear. The driven low-speed gear is placed at the lower end of the driven high-speed gear. The driven low-speed gear, the driven high-speed gear and the reduction gear input sleeve are coaxially integrated and installed on the keyway.

[0006] Preferably, the driving gear set comprises: a driving high-speed gear, a driving low-speed gear and a spline hole, the driving high-speed gear is placed on the upper end of the driving low-speed gear, the driving high-speed gear, the driving low-speed gear and the spline hole are coaxially formed as one body and sleeved on the driving shaft.

[0007] Preferably, it also includes: a ventilation valve, wherein the ventilation valve is connected to the fuel filling port.

[0008] Preferably, it also includes: an oil drain screw, which is connected to the oil drain port and is used to control the outflow of gear oil to ensure the air pressure balance in the box.

[0009] Preferably, it also includes: a lifting ring, and the lifting ring is arranged on the ventilation valve.

[0010] Preferably, the reducer input shaft end cover is connected to the pumping unit reducer input shaft.

[0011] Preferably, the bearing is positioned by a main shaft pressure cover, an oil seal seat hole is provided on the inner side of the main shaft pressure cover, and an oil seal is installed in the oil seal seat hole.

[0012] (III) Beneficial effects The present invention provides an adjustable speed gear transmission device for an oil pump, which can realize power transmission by a gear set, reduce motor power loss, improve the operation stability of the oil pump, and replace the process of replacing belts. The adjustable speed gear transmission device for an oil pump can change the transmission ratio of the gear by rotating the speed regulating screw to realize the stroke adjustment of the oil pump, making the stroke adjustment of the oil pump faster and more labor-saving, ensuring the effective use of electrical energy and mechanical energy, and changing the original time-consuming and labor-intensive method of replacing pulleys to adjust the stroke, thereby achieving the purpose of reducing personnel input and reducing the cost of crude oil production and operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the front view of the adjustable speed gear transmission device for an oil pumping unit according to the present invention is shown; Figure 2 A schematic diagram of the front view and full cross-section structure of an adjustable speed gear transmission device for an oil pumping unit according to the present invention is shown; Figure 3 A schematic diagram of a partial cross-sectional structure of an adjustable speed gear transmission device for an oil pumping unit according to the present invention is shown.

[0014] Among them: 1: speed control box housing; 2: speed control box side shell; 3: reduction gear input shaft end cover; 4: oil filling port; 5: ventilation valve; 6: oil drain port; 7: oil drain screw; 8: lifting ring; 9: main shaft front bearing hole; 10: main shaft rear bearing bracket; 11: speed control screw positioning hole; 12: driven low-speed gear; 13: driven high-speed gear; 14: reduction gear input shaft sleeve; 15: keyway; 16: active high-speed gear; 17: active low-speed gear; 18: spline hole; 19: active shaft; 20: gear spline hole; 21: main shaft pressure cover; 22: oil seal; 23: bearing; 24: fork drive sleeve; 25: speed control fork; 26: speed control screw. Implementation

[0015] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1-3 As shown, the present invention provides an adjustable speed gear transmission device for an oil pump, comprising: a speed regulating box; The speed regulating box comprises: a speed regulating box housing 1 and a speed regulating box side cover 2. One side of the speed regulating box housing 1 is connected to the speed regulating box side cover 2 to form a sealed speed regulating box. The speed regulating box is used to support the gears in the gear box and store lubricating oil. One side of the speed regulating box housing 1 is connected to the speed regulating box side cover 2, and the other side thereof is provided with a reduction box input shaft end cover 3, and the reduction box input shaft end cover 3 is used to dock and fix the input shaft of the oil pumping unit reduction box to achieve docking of the speed regulating box housing 1 and the oil pumping unit reduction box; the upper end of the speed regulating box housing 1 is provided with a refueling port 4, and the lower end is provided with an oil drain port 6; the refueling port 4 is used to input gear oil, and the oil drain port 6 is used to discharge gear oil, and the refueling port 4 and the oil drain port 6 are used to replace the gear oil used in the adjustable speed gear transmission device of the oil pumping unit; the refueling port 4 is connected to the air exchange valve 5, the lower end of the air exchange valve 5 is provided with a thread, and the upper end of the air exchange valve 5 is provided with a lifting ring 8, and the lifting ring 8 is used for lifting the adjustable speed gear transmission device of the oil pumping unit; the oil drain port 6 is connected to the oil drain screw 7, and the oil drain screw 7 is used to ensure the air pressure balance in the box of the adjustable speed gear transmission device of the oil pumping unit; The head of the speed regulating box housing 1 is provided with a driven gear set, which includes: a driven low-speed gear 12, a driven high-speed gear 13 and a reduction box input shaft sleeve 14. The outer diameter of the driven low-speed gear 12 is larger than that of the driven high-speed gear 13. The driven low-speed gear 12 is placed at the lower end of the driven high-speed gear 13. The driven low-speed gear 12 and the driven high-speed gear 13 are integrally coaxially installed through the reduction box input shaft sleeve 14, and are sleeved on the input shaft of the pumping unit reduction box through the reduction box input shaft sleeve 14, and are positioned with the input shaft by a keyway 15. The driven gear set replaces the original pulley transmission device to input power to the reduction box of the pumping unit; The rear part of the speed regulating box housing 1 is provided with a driving gear set, which includes: a driving high-speed gear 16, a driving low-speed gear 17 and a spline hole 18. The driving high-speed gear 16 is placed on the upper end of the driving low-speed gear 17. The driving high-speed gear 16, the driving low-speed gear 17 and the spline hole 18 are integrally coaxially installed and sleeved on the driving shaft 19 and can slide radially relative to each other, so that the driving high-speed gear 16 and the driving low-speed gear 17 are meshed with each other and the driven low-speed gear 12 are meshed with each other, and the driving high-speed gear 16 and the driving low-speed gear 17 are meshed with each other and the driven high-speed gear 13 are meshed with each other. A keyway 15 is provided on one side of the head of the speed regulating box housing 1, and a driven gear set is sleeved on the keyway 15; a driving shaft 19 is provided at the rear of the speed regulating box housing 1, and bearings 23 are pressed on both ends of the driving shaft 19, and a gear spline hole 20 larger than the shaft diameter of the driving shaft 19 is provided on the driving shaft 19, and a driving gear set is sleeved on the gear spline hole; a main shaft front bearing hole 9 is provided on one side of the rear of the speed regulating box housing 1, and a main shaft rear bearing support frame 10 and a speed regulating screw positioning hole 11 are provided on the other side. The main shaft front bearing hole 9 and the main shaft rear bearing support frame 10 are used to install the bearing 23 to achieve alignment The speed regulating screw positioning hole 11 at the rear of the speed regulating box housing 1 is used to install and position the speed regulating screw 26. The speed regulating screw 26 is installed in the speed regulating screw positioning hole 11. The speed regulating screw 26 is threadedly connected with the fork driving sleeve 24. The front end of the fork driving sleeve 24 is connected with a speed regulating fork 25. The speed regulating fork 25 is inserted into the active high-speed gear 17. The rotation of the speed regulating screw 26 can drive the fork driving sleeve 24 to move, and then the speed regulating fork 25 pushes the active high-speed gear 17 to slide on the active shaft 19 to realize the speed ratio conversion of high and low speed gears. The driving shaft 19 is provided with bearings 23 at both ends, and the driving shaft 19 is positioned on the main shaft front bearing hole 9 and the main shaft rear bearing bracket 10 through the bearings 23, and is connected to the speed regulating box housing 1 by the main shaft pressure cover 21. The main shaft pressure cover 21 has an oil seal seat hole on the inner side, and the oil seal seat hole is provided with an oil seal 22. The oil seal 22 is used to seal the adjustable speed gear transmission device of the oil pumping unit to ensure that the liquid in the adjustable speed gear transmission device of the oil pumping unit will not leak out.

[0017] The actual working scenario of the adjustable speed gear transmission device of the oil pump is introduced in detail below.

[0018] like Figure 1-3 As shown, in actual work, first remove the speed regulating box housing 1, take out the driven gear set, install the reduction box input shaft end cover 3 on the pumping unit reduction box input shaft end cover seat by hoisting, then install the driven gear set on the reduction box input shaft, inject gear oil from the refueling port 4 on the speed regulating box side cover 2, connect the motor to the driving shaft 19, and realize power transmission through the driving gear set.

[0019] like Figure 1-3As shown, in actual work, when the pumping unit stroke frequency needs to be changed, the speed regulating screw 26 can be rotated to drive the fork drive sleeve 24 to move, and the speed regulating fork 25 can push the active high-speed gear 16 to slide on the active shaft 19 to achieve the speed ratio conversion of the high and low speed gears, thereby achieving the purpose of adjusting the pumping unit stroke frequency.

[0020] It can be understood that the above-mentioned various embodiments mentioned in the present invention can be combined with each other to form a combined embodiment without violating the principle logic. Due to space limitations, the present invention will not go into details.

[0021] Those skilled in the art will appreciate that, in the above method of specific implementation, the order in which the steps are written does not imply a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of the steps should be determined by their functions and possible internal logic.

[0022] The adjustable speed gear transmission device for an oil pump provided by the present invention can realize power transmission by a gear set, reduce motor power loss, improve the operation stability of the oil pump, and replace the process of replacing the belt. The adjustable speed gear transmission device for an oil pump can change the transmission ratio of the gear by rotating the speed regulating screw to adjust the stroke frequency of the oil pump. The stroke frequency adjustment of the oil pump is made faster and more labor-saving, ensuring the effective use of electrical energy and mechanical energy, changing the original time-consuming and labor-intensive method of adjusting the stroke frequency by replacing the pulley, reducing personnel input, and reducing the cost of crude oil production and operation and maintenance.

[0023] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An adjustable speed gear transmission device for an oil pumping unit, It is characterized in that include: Speed ​​regulating box; The speed regulating box body comprises: a speed regulating box housing (1) and a speed regulating box side cover (2); One side of the speed regulating box housing (1) is connected to the speed regulating box side cover (2), and the other side is provided with a reduction box input shaft end cover (3); The speed regulating box housing (1) is provided with a refueling port (4) at the upper end and an oil drain port (6) at the lower end; The head of the speed regulating box housing (1) is provided with a driven gear set, and the tail of the speed regulating box housing (1) is provided with a driving gear set; A keyway (15) is provided on one side of the head of the speed regulating box housing (1), and a driven gear set is sleeved on the keyway (15); A driving shaft (19) is provided at the rear of the speed regulating box housing (1), bearings (23) are press-fitted at both ends of the driving shaft (19), the driving shaft (19) is provided with a gear spline hole (20) larger than the shaft diameter of the driving shaft (19), and a driving gear set is sleeved on the gear spline hole; A speed regulating screw positioning hole (11) is provided on one side of the rear end of the speed regulating box housing (1), the speed regulating screw (26) is installed in the speed regulating screw positioning hole (11), a fork drive sleeve (24) is sleeved on the front end of the speed regulating screw (26), a speed regulating fork (25) is connected to the front end of the fork drive sleeve (24), and the speed regulating fork (25) is inserted between the driving gear sets to drive the driving gear sets to perform speed ratio conversion.

2. The adjustable speed gear transmission device for the oil pump according to claim 1, It is characterized in that The driven gear set comprises: a driven low-speed gear (12), a driven high-speed gear (13) and a reduction gear input shaft sleeve (14); the driven low-speed gear (12) has an outer diameter greater than that of the driven high-speed gear (13); the driven low-speed gear (12) is disposed at the lower end of the driven high-speed gear (13); the driven low-speed gear (12), the driven high-speed gear (13) and the reduction gear input shaft sleeve (14) are coaxially formed as one body and mounted on a keyway (15).

3. The adjustable speed gear transmission device for the oil pumping unit according to claim 1, It is characterized in that The driving gear set comprises: a driving high-speed gear (16), a driving low-speed gear (17) and a spline hole (18); the driving high-speed gear (16) is disposed on the upper end of the driving low-speed gear (17); the driving high-speed gear (16), the driving low-speed gear (17) and the spline hole (18) are coaxially formed into one body and sleeved on the driving shaft (19).

4. The adjustable speed gear transmission device for an oil pump according to claim 1, It is characterized in that Also includes: A ventilation valve (5) is connected to the fuel filling port (4).

5. The adjustable speed gear transmission device for an oil pump according to claim 1, It is characterized in that Also includes: An oil drain screw (7) is connected to the oil drain port (6) and is used to control the outflow of gear oil to ensure the balance of air pressure in the box.

6. The adjustable speed gear transmission device for the oil pumping unit according to claim 5, It is characterized in that Also includes: A lifting ring (8), wherein the lifting ring (8) is arranged on the ventilation valve (5).

7. The adjustable speed gear transmission device for an oil pump according to claim 1, It is characterized in that The reduction gearbox input shaft end cover (3) is connected to the oil pump reduction gearbox input shaft.

8. The adjustable speed gear transmission device for an oil pump according to claim 1, It is characterized in that The bearing (23) is positioned by a main shaft pressure cover (21); an oil seal seat hole is provided inside the main shaft pressure cover (21); and an oil seal (22) is installed in the oil seal seat hole.

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