CN209875773U - Coaxiality adjustable connecting device - Google Patents
Coaxiality adjustable connecting device Download PDFInfo
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- CN209875773U CN209875773U CN201920719648.2U CN201920719648U CN209875773U CN 209875773 U CN209875773 U CN 209875773U CN 201920719648 U CN201920719648 U CN 201920719648U CN 209875773 U CN209875773 U CN 209875773U
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- sleeve
- motor
- coaxiality
- coupling
- steel balls
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Abstract
A coaxiality-adjustable connecting device. The main belt of being connected between current beam-pumping unit motor and the reduction gear of solving changes with the installation hard, easily arouses the problem of incident. The method is characterized in that: the coupling sleeve (4) is connected to the input shaft (6) of the speed reducer through a flat key (5), a plurality of steel balls (2) which are circumferentially arranged are arranged outside the coupling sleeve (4), the steel balls (2) are supported through a steel ball support (3), a wheel alignment sleeve (1) is sleeved outside the steel balls (2), the wheel alignment sleeve (1) is connected with a sealing sleeve (7) through a bolt (8), and the wheel alignment sleeve (1) and the sealing sleeve (7) are embedded inside the motor. The coaxiality-adjustable connecting device is used for connecting the motor and the speed reducer, a belt transmission mechanism is omitted, the size is small, the structure is simple, the maintenance and the assembly are convenient, and the operation is safe and stable.
Description
Technical Field
The utility model relates to an oil field machinery, a coaxial adjustable coupling device specifically says so.
Background
The pumping unit is the most common oil extraction equipment in oil field production, and in the pumping unit, the motor is in power connection with the speed reducer through a belt. In a belt transmission mechanism, a belt belongs to a wearing part and needs to be replaced frequently. When changing the belt, need use the crowbar to prize the belt hard out from the belt groove on the belt pulley, artifical rotatory belt pulley simultaneously prizes the old belt that just can will wear and tear repeatedly many times. The installation of new belt is equally hard, and when the input shaft takes place to warp and outstanding, the belt pulley also can rock or arch along with the input shaft, causes the belt fracture very easily or the belt pulley drops, scrapes the balancing piece seriously even, arouses circumstances such as the machine that turns over to take place, can only maintain the reducing gear box for work is heavy, cost of maintenance is expensive.
SUMMERY OF THE UTILITY MODEL
The utility model provides an it is hard, easily arouse the not enough of incident in order to overcome the belt of being connected between current beam-pumping unit motor and the reduction gear, the utility model provides an adjustable coupling device of axiality, this adjustable coupling device of axiality connect motor and reduction gear, have saved belt drive mechanism, and is small, simple structure, maintenance easy dismounting, operation safety and stability.
The technical scheme of the utility model is that: the utility model provides an adjustable coupling device of axiality, includes the reduction gear input shaft, connect the shaft coupling cover through the parallel key on the reduction gear input shaft, the shaft coupling cover outside is equipped with a plurality of steel ball that circumference was arranged, and the steel ball passes through the steel ball support and supports, and the steel ball outside cover has the counter wheel cover, and the counter wheel cover passes through bolted connection seal cover, and counter wheel cover and seal cover are inlayed inside the motor.
The left end of the steel ball support is propped against the step on the outer wall of the coupler sleeve, and the right end of the steel ball support is propped against the step on the inner wall of the counter wheel sleeve.
The inner diameter of the sealing sleeve is larger than the outer diameter of the coupling sleeve.
The utility model discloses following beneficial effect has: by adopting the scheme, the input shaft of the speed reducer is connected with the coupling sleeve, the motor is connected with the coupling sleeve, and the coupling sleeve is connected with the coupling sleeve by adopting the rotatable spherical surface, so that the coaxiality of the input shaft of the speed reducer and the motor can be adjusted within the range of 0-10 degrees, the mounting precision is reduced, the mounting time and the mounting cost are saved, the output efficiency is improved, the operation vibration and the noise are small, and the operation is safe and stable.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view taken along A-A in FIG. 1;
fig. 3 is a schematic diagram of the angle between the motor axis and the input shaft of the reducer as alpha.
In the figure, 1-pair of wheel sleeves, 2-steel balls, 3-steel ball supports, 4-coupling sleeves, 5-flat keys, 6-input shafts of the speed reducers, 7-sealing sleeves and 8-bolts are arranged.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 to 3, the coaxiality-adjustable coupling device comprises a speed reducer input shaft 6, wherein the speed reducer input shaft 6 is connected with a coupling sleeve 4 through a flat key 5, and the coupling sleeve 4 is sleeved at the shaft end of the speed reducer input shaft 6 and radially fixed through the flat key 5. The outer part of the coupling sleeve 4 is provided with a plurality of steel balls 2 which are circumferentially arranged, the steel balls 2 are supported by steel ball supports 3, and the steel ball supports 3 are in contact with the steel balls 2 through spherical surfaces, so that the steel balls 2 can rotate freely. The steel ball 2 is externally sleeved with a wheel alignment sleeve 1, the wheel alignment sleeve 1 is connected with a sealing sleeve 7 through a bolt 8, and the wheel alignment sleeve 1 and the sealing sleeve 7 are both embedded in the motor and fixed together through the bolt 8. The left end of the steel ball support 3 is abutted against the step on the outer wall of the coupler sleeve 4, the right end of the steel ball support is abutted against the step on the inner wall of the counter wheel sleeve 1, therefore, the input shaft 6 of the speed reducer can move left and right in a certain range relative to the counter wheel sleeve 1, and at the moment, the steel ball rolls left and right along the outer surface of the input shaft 6 of the speed reducer. Meanwhile, the inner diameter of the sealing sleeve 7 is larger than the outer diameter of the coupling sleeve 4, so that the coupling sleeve 4 can swing in a certain range relative to the sealing sleeve 7.
The coaxiality adjustable connecting device is connected between a motor and a speed reducer input shaft 6, and adopts rotatable spherical connection, so that the speed reducer input shaft 6 can swing within a certain range, and the included angle alpha between the speed reducer input shaft 6 and a motor shaft line is 0-10 degrees, so that the coaxiality is adjustable within the range of 0-10 degrees. Meanwhile, the coupling sleeve 4 can move in a certain range in the axis direction relative to the wheel sleeve 1, namely the coupling sleeve 4 can move leftwards and rightwards, so that when the input shaft of the speed reducer is damaged, a movable room is reserved between the speed reducer and the motor, and the speed reducer and the motor are protected. The connecting device is applied to the connection of the motor and the reducer of the oil pumping unit, a belt transmission mechanism between the existing motor and the reducer is omitted, on one hand, the output efficiency is improved, meanwhile, the installation precision is reduced, the installation cost is low, the installation time and the installation cost are saved, and the connecting device is small in operation vibration and noise, safe and reliable.
Claims (3)
1. A coaxiality-adjustable coupling device comprising a reducer input shaft (6), characterized in that: the coupling sleeve (4) is connected to the input shaft (6) of the speed reducer through a flat key (5), a plurality of steel balls (2) which are circumferentially arranged are arranged outside the coupling sleeve (4), the steel balls (2) are supported through a steel ball support (3), a wheel alignment sleeve (1) is sleeved outside the steel balls (2), the wheel alignment sleeve (1) is connected with a sealing sleeve (7) through a bolt (8), and the wheel alignment sleeve (1) and the sealing sleeve (7) are embedded inside the motor.
2. The axiality adjustable coupling of claim 1, wherein: the left end of the steel ball support (3) is propped against the step on the outer wall of the coupler sleeve (4), and the right end of the steel ball support is propped against the step on the inner wall of the counter wheel sleeve (1).
3. The axiality adjustable coupling device of claim 2, wherein: the inner diameter of the sealing sleeve (7) is larger than the outer diameter of the coupling sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920719648.2U CN209875773U (en) | 2019-05-17 | 2019-05-17 | Coaxiality adjustable connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920719648.2U CN209875773U (en) | 2019-05-17 | 2019-05-17 | Coaxiality adjustable connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209875773U true CN209875773U (en) | 2019-12-31 |
Family
ID=68947163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920719648.2U Active CN209875773U (en) | 2019-05-17 | 2019-05-17 | Coaxiality adjustable connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209875773U (en) |
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2019
- 2019-05-17 CN CN201920719648.2U patent/CN209875773U/en active Active
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