Novel composite transmission device of oil pumping unit

Abstract

The utility model relates to a novel composite transmission device of a pumping unit. According to the technical scheme, one end of a tooth-shaped triangular belt is wound on a large belt pulley, and the other end of the tooth-shaped triangular belt is wound on a tooth-shaped belt pulley; the toothed belt wheel comprises a belt wheel body and a taper sleeve, the belt wheel body and the taper sleeve are fixedly connected through taper sleeve connecting bolts, and a plurality of sets of belt wheel teeth are installed on the outer ring of the belt wheel body; the tooth-shaped triangular belt is of a rubber tooth-shaped multi-connection structure and is meshed with a plurality of sets of belt wheel teeth outside the belt wheel body to drive the large belt wheel to rotate in a transmission mode. The belt wheel has the advantages that on one hand, the belt wheel body and the taper sleeve are rapidly connected into an integral structure through the taper sleeve connecting bolt, and rapid installation operation is achieved; and on the other hand, the taper sleeve connected with the output shaft of the motor of the oil pumping unit drives the toothed belt wheel to rotate, the toothed triangular belt adopts a rubber toothed multi-connection structure, and pure friction transmission is changed into composite transmission combining friction and meshing, so that the transmission efficiency is improved, and the transmission energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pumping unit belt transmission, in particular to a novel oil pumping unit composite transmission device. Background Art

[0002] At present, in the petroleum industry, the commonly used oil extraction machinery is the beam pumping unit. Its working principle is that the rotation of the motor is converted into the up and down movement of the donkey head through the gearbox and the crank-connecting rod mechanism. The donkey head drives the plunger of the downhole pump to move up and down through the bare rod and the sucker rod, thereby continuously pumping the crude oil out of the wellbore. Due to its reliability and stability, it is widely used. However, the beam pumping unit generally adopts a belt transmission method, which transmits power to the large pulley through the friction between the belt and the pulley. When encountering rainy and snowy weather, the belt may slip; this is because the small pulley has a small wrap angle and a small transmission torque. When rain and snow flow in, the friction coefficient between the belt and the pulley will be reduced, thereby reducing the effective tension of the belt, causing slippage, and reducing the transmission efficiency of the belt; in addition, when encountering a large load requirement, the belt is also prone to slippage. Therefore, not only does it need to maintain and replace the belt frequently, but it also reduces the mechanical efficiency of the pumping unit, affects the normal production of the oil well, and has high transmission energy consumption. Utility Model Content

[0003] The purpose of the utility model is to address the above-mentioned defects in the prior art and to provide a new type of oil pumping unit composite transmission device, which adopts a toothed V-belt and a toothed pulley, and the toothed pulley is a split structure. The cone sleeve and the pulley body are connected together by cone sleeve connecting bolts, which changes from a simple friction transmission to a composite transmission combining friction and meshing, thereby improving the transmission efficiency and reducing the transmission energy consumption.

[0004] The utility model discloses a novel composite transmission device for an oil pumping unit, and the technical scheme thereof is as follows: comprising a large pulley (1), which further comprises a toothed V-belt (2), a toothed pulley (3), a tapered sleeve (4), a tooth connecting pin (5), a tapered sleeve connecting bolt (6), a pulley body (7), and pulley teeth (8); one end of the toothed V-belt (2) is wound around the large pulley (1), and the other end is wound around the toothed pulley (3); the toothed pulley (3) comprises a pulley body (7) and a tapered sleeve (4); the pulley body (7) and the tapered sleeve (4) are fixedly connected via tapered sleeve connecting bolts (6); and a plurality of groups of pulley teeth (8) are installed on the outer ring of the pulley body (7); the toothed V-belt (2) adopts a rubber toothed multi-link structure, and meshes with the plurality of groups of pulley teeth (8) outside the pulley body (7), so as to drive the large pulley (1) to rotate.

[0005] Preferably, the above-mentioned cone sleeve (4) comprises a cone sleeve body (4.1), a cone transition body (4.2), a cylindrical connecting body (4.3) and a keyway (4.4); the cone sleeve body (4.1) is provided with a cylindrical connecting body (4.3) on the outside, and a plurality of screw holes are distributed on the cylindrical connecting body (4.3); one end of the cone sleeve body (4.1) is connected to the cone transition body (4.2); the cone transition body (4.2) is connected to the inner cavity of the toothed belt wheel (3); the inner cavity of the cone sleeve body (4.1) is a cylindrical cavity, and a keyway (4.4) is provided on the inner wall.

[0006] Preferably, the inner cavity of the toothed belt wheel (3) is a conical structure, which is cooperatively connected with the conical transition body (4.2).

[0007] Preferably, the above-mentioned pulley teeth (8) are of a bevel tooth structure, and more than four groups of pulley teeth (8) are provided on the outer ring of the pulley body (7).

[0008] Preferably, the toothed V-belt (2) is provided with a top cloth (2.1), a top rubber (2.2), a tensile body (2.3), a cord reinforcement layer (2.4), a fiber-containing base rubber (2.5) and a wear-resistant nylon base cloth (2.6) in sequence from top to bottom, wherein the fiber-containing base rubber (2.5) and the wear-resistant nylon base cloth (2.6) form a plurality of groups of toothed structures for meshing with pulley teeth (8).

[0009] Preferably, the cords in the cord reinforcement layer (2.4) are arranged transversely.

[0010] The beneficial effects of the utility model are:

[0011] On the one hand, multiple groups of pulley teeth are installed on the outer ring of the pulley body of the toothed pulley, and the toothed V-belt is mounted on the large pulley and the toothed pulley, and then connected and fixed with the motor output shaft of the pumping unit through the keyway and key of the taper sleeve, and the pulley body and the taper sleeve are quickly connected into an integral structure through the taper sleeve connecting bolts, thereby realizing a quick installation operation;

[0012] On the other hand, the tapered sleeve connected to the output shaft of the motor of the oil pump drives the toothed pulley to rotate. The toothed V-belt adopts a rubber toothed multi-link structure, which is transmitted to the large pulley on the input shaft of the oil pump reducer through the toothed V-belt, driving the large pulley to rotate, realizing belt reduction transmission movement, avoiding belt slippage, and changing from simple friction transmission to a composite transmission combining friction and meshing, which improves transmission efficiency, reduces transmission energy consumption, and reduces the impact on normal production of the oil field. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 is a schematic cross-sectional view of a toothed belt pulley;

[0015] Figure 3 It is a side installation diagram of the toothed belt pulley;

[0016] Figure 4 It is a structural schematic diagram of the cone sleeve;

[0017] Figure 5 It is a schematic diagram of the structure of a toothed V-belt;

[0018] Figure 6 is a schematic cross-sectional view of a second embodiment of a toothed belt pulley;

[0019] In the above figure: large pulley 1, toothed V-belt 2, toothed pulley 3, tapered sleeve 4, gear connecting pin 5, tapered sleeve connecting bolt 6, pulley body 7, pulley teeth 8, top cloth 2.1, top glue 2.2, tensile body 2.3, cord reinforcement layer 2.4, fiber-containing base glue 2.5 and wear-resistant nylon base cloth 2.6, tapered sleeve body 4.1, tapered transition body 4.2, cylindrical connector 4.3 and keyway 4.4, anti-slip protrusion 7.1. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Example 1, reference Figure 1-Figure 4 The utility model mentions a novel composite transmission device for an oil pumping unit, comprising a large pulley 1, which also includes a toothed V-belt 2, a toothed pulley 3, a tapered sleeve 4, a gear connecting pin 5, a tapered sleeve connecting bolt 6, a pulley body 7, and pulley teeth 8. One end of the toothed V-belt 2 is wound around the large pulley 1, and the other end is wound around the toothed pulley 3; the toothed pulley 3 comprises a pulley body 7 and a tapered sleeve 4, the pulley body 7 is fixedly connected to the tapered sleeve 4 by a tapered sleeve connecting bolt 6, and a plurality of groups of pulley teeth 8 are installed on the outer ring of the pulley body 7; the toothed V-belt 2 adopts a rubber toothed multi-link structure, and meshes with a plurality of groups of pulley teeth 8 outside the pulley body 7, driving the large pulley 1 to rotate.

[0022] Reference Figure 3-Figure 4 The cone sleeve 4 mentioned in the utility model includes a cone sleeve body 4.1, a cone transition body 4.2, a cylindrical connector 4.3 and a keyway 4.4. The cone sleeve body 4.1 is provided with a cylindrical connector 4.3 on the outside, and a plurality of screw holes are distributed on the cylindrical connector 4.3. One end of the cone sleeve body 4.1 is connected to the cone transition body 4.2, and the cone transition body 4.2 is matched with the inner cavity of the toothed belt wheel 3. The inner cavity of the cone sleeve body 4.1 is a cylindrical cavity, and a keyway 4.4 is provided on the inner wall.

[0023] The inner cavity of the toothed belt wheel 3 is a conical structure, which is connected with the conical transition body 4.2.

[0024] In addition, the above-mentioned pulley teeth 8 are of a bevel tooth structure, and more than four groups of pulley teeth 8 are provided on the outer ring of the pulley body 7 .

[0025] When the utility model is used, the specific operations are as follows:

[0026] First, the pulley body 7 and the tapered sleeve 4 are quickly connected to form an integral structure through the tapered sleeve connecting bolts 6, and multiple groups of pulley teeth 8 are installed on the outer ring of the pulley body 7 of the toothed pulley 3. Then, the toothed V-belt 2 is mounted on the large pulley 1 and the toothed pulley 3, and then connected and fixed to the motor output shaft of the pumping unit through the keyway and key of the tapered sleeve 4, thereby realizing a quick installation operation;

[0027] Then, the oil pumping unit motor is started, and the tapered sleeve 4 connected to the motor output shaft drives the toothed pulley 3 to rotate. Then, the toothed V-belt 2 adopts a rubber toothed multi-link structure and meshes with multiple groups of pulley teeth 8 outside the pulley body 7. The toothed V-belt 2 transmits to the large pulley 1 on the input shaft of the oil pumping unit reducer, driving the large pulley 1 to rotate, realizing the belt reduction transmission movement, and then driving other mechanisms of the oil pump to perform lifting and oil production.

[0028] Embodiment 2, the utility model mentions a new type of oil pumping unit composite transmission device, including a large pulley 1, which also includes a toothed V-belt 2, a toothed pulley 3, a tapered sleeve 4, a gear connecting pin 5, a tapered sleeve connecting bolt 6, a pulley body 7, and pulley teeth 8. One end of the toothed V-belt 2 is wound around the large pulley 1, and the other end is wound around the toothed pulley 3; the toothed pulley 3 includes a pulley body 7 and a tapered sleeve 4, the pulley body 7 and the tapered sleeve 4 are fixedly connected by a tapered sleeve connecting bolt 6, and a plurality of groups of pulley teeth 8 are installed on the outer ring of the pulley body 7; the toothed V-belt 2 adopts a rubber toothed multi-link structure, and meshes with the plurality of groups of pulley teeth 8 outside the pulley body 7, driving the large pulley 1 to rotate.

[0029] The difference from Example 1 is:

[0030] Reference Figure 5 The toothed V-belt 2 mentioned in the utility model is provided with a top cloth 2.1, a top rubber 2.2, a tension-resistant body 2.3, a cord reinforcement layer 2.4, a fiber-containing base rubber 2.5 and a wear-resistant nylon base cloth 2.6 from top to bottom. The fiber-containing base rubber 2.5 and the wear-resistant nylon base cloth 2.6 form a plurality of groups of toothed structures for meshing with the pulley teeth 8.

[0031] Among them, the cords in the above-mentioned cord reinforcement layer 2.4 adopt a transverse arrangement structure, which improves the strength, avoids compression and tensile deformation of the belt during transmission, and extends its service life. The tensioning force of the toothed V-belt 2 of the utility model is 1500N~2500N, compared with the tensioning force of traditional ordinary belts of 3500N~5000N, which achieves a significant reduction in energy consumption and power saving.

[0032] In addition, the convex teeth and concave teeth in the multiple groups of tooth structures composed of fiber-containing base rubber 2.5 and wear-resistant nylon base cloth 2.6 adopt a tangent circle transition design structure, which can jump slots when a mechanical failure occurs, effectively protecting the motor, and at the same time can adapt to changes in the geometric shape and dimensional errors of the pulley groove, so that all components of the transmission body can have good contact with the pulley groove, and give full play to the transmission capacity of each transmission body, which not only ensures the smoothness of the transmission, but also extends the life of the belt, thereby achieving the purpose of improving transmission efficiency and reducing transmission energy consumption.

[0033] Embodiment 3, the utility model mentions a new type of oil pumping unit composite transmission device, including a large pulley 1, which also includes a toothed V-belt 2, a toothed pulley 3, a tapered sleeve 4, a gear connecting pin 5, a tapered sleeve connecting bolt 6, a pulley body 7, and pulley teeth 8. One end of the toothed V-belt 2 is wound around the large pulley 1, and the other end is wound around the toothed pulley 3; the toothed pulley 3 includes a pulley body 7 and a tapered sleeve 4, the pulley body 7 and the tapered sleeve 4 are fixedly connected by a tapered sleeve connecting bolt 6, and a plurality of groups of pulley teeth 8 are installed on the outer ring of the pulley body 7; the toothed V-belt 2 adopts a rubber toothed multi-link structure, and meshes with the plurality of groups of pulley teeth 8 outside the pulley body 7, driving the large pulley 1 to rotate.

[0034] The difference from Example 2 is:

[0035] In order to avoid possible displacement of the toothed V-belt 2, anti-slip protrusions 7.1 are provided on both sides of the pulley body 7. In this way, when the toothed V-belt 2 is engaged with multiple sets of pulley teeth 8, it will be limited by the anti-slip protrusions 7.1 on both sides, thereby avoiding the position movement of the toothed V-belt 2 and improving safety.

[0036] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent transformation based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. A novel compound transmission device for an oil pumping unit, comprising a large pulley (1), characterized in that: The invention also comprises a toothed V-belt (2), a toothed pulley (3), a tapered sleeve (4), a gear connecting pin (5), a tapered sleeve connecting bolt (6), a pulley body (7), and pulley teeth (8); one end of the toothed V-belt (2) is wound around the large pulley (1), and the other end is wound around the toothed pulley (3); the toothed pulley (3) comprises a pulley body (7) and a tapered sleeve (4); the pulley body (7) and the tapered sleeve (4) are fixedly connected via a tapered sleeve connecting bolt (6); a plurality of groups of pulley teeth (8) are mounted on the outer ring of the pulley body (7); the toothed V-belt (2) adopts a rubber toothed multi-link structure, and meshes with the plurality of groups of pulley teeth (8) outside the pulley body (7), thereby driving the large pulley (1) to rotate.

2. The novel compound transmission device for oil pumping unit according to claim 1 is characterized in that: The cone sleeve (4) comprises a cone sleeve body (4.1), a cone transition body (4.2), a cylindrical connecting body (4.3) and a keyway (4.4); the cone sleeve body (4.1) is provided with a cylindrical connecting body (4.3) on the outside, and a plurality of screw holes are distributed on the cylindrical connecting body (4.3); one end of the cone sleeve body (4.1) is connected to the cone transition body (4.2); the cone transition body (4.2) is connected to the inner cavity of the toothed belt wheel (3); the inner cavity of the cone sleeve body (4.1) is a cylindrical cavity, and a keyway (4.4) is provided on the inner wall.

3. The novel compound transmission device for oil pumping unit according to claim 2 is characterized in that: The inner cavity of the toothed belt wheel (3) is a conical structure, and is connected in cooperation with the conical transition body (4.2).

4. The novel compound transmission device for oil pumping unit according to claim 3 is characterized in that: The pulley teeth (8) are of a conical tooth structure, and more than four groups of pulley teeth (8) are provided on the outer ring of the pulley body (7).

5. The novel compound transmission device for oil pumping unit according to claim 1 or 4 is characterized in that: The toothed V-belt (2) is provided with a top cloth (2.1), a top rubber (2.2), a tensile body (2.3), a cord reinforcement layer (2.4), a fiber-containing base rubber (2.5) and a wear-resistant nylon base cloth (2.6) in sequence from top to bottom. The fiber-containing base rubber (2.5) and the wear-resistant nylon base cloth (2.6) form a plurality of groups of toothed structures for meshing with pulley teeth (8).

6. The novel compound transmission device for oil pumping unit according to claim 5 is characterized in that: The cords in the cord reinforcement layer (2.4) adopt a transverse arrangement structure.

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