CN217522696U

CN217522696U - Special gear motor of GRT screw pump

Info

Publication number: CN217522696U
Application number: CN202221169039.2U
Authority: CN
Inventors: 金超; 马晓锋
Original assignee: Jiangsu Guomao Reducer Group Co ltd
Current assignee: Jiangsu Guomao Reducer Group Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-09-30
Anticipated expiration: 2032-05-16

Abstract

The utility model discloses a special gear motor of GRT screw pump, its technical scheme main points are: the device comprises a transmission machine, wherein one side of the transmission machine is fixedly connected with a case, and one end of the case is fixedly connected with an output flange; the output shaft is movably sleeved inside the output flange; the thrust ball bearing is a special axial force bearing and can bear axial force during high-speed operation, meanwhile, the thrust ball bearing does not perform radial positioning on the output shaft and does not bear radial load, one end of the output shaft is fixed to the inside of the case through the second cylindrical roller bearing, the second cylindrical roller bearing is a special radial force bearing and bears radial load generated by the output gear during operation, and meanwhile, the second cylindrical roller bearing and the case are only radially fixed and do not bear axial load, and the axial load and the radial load generated during operation of the screw pump are respectively transmitted to the thrust ball bearing and the second cylindrical roller bearing through the structure.

Description

Special gear motor for GRT screw pump

Technical Field

The utility model relates to a gear motor field, concretely relates to special gear motor of GRT screw pump.

Background

Screw pumps are one type of common hydraulic pump, and utilize the rotation of a screw to propel fluid. The method is widely applied to the industries of environmental protection energy, chemical industry, food, petroleum and natural gas and the like. Compared with an industrial rotor pump, the screw has the following advantages: the pressure and flow range is wide; the pressure is about 3.4-340Kgf/cm ² (ii) a The flow rate can reach 100cm ³ Min; the variety and viscosity range of the conveying liquid is wide; because of the low inertial forces of the rotating parts in the pump, very high rotational speeds can be used.

However, the tail end of the existing screw rod can rotate and simultaneously generate large axial force, and the selection of a screw rod fixing mode requires simultaneous axial force and radial force, so that a transmission machine during working needs to simultaneously bear the torque and the axial load generated by a rotor.

SUMMERY OF THE UTILITY MODEL

To the problem mentioned in the background art, the utility model aims at providing a special gear motor of GRT screw pump to solve the problem mentioned in the background art.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a special gear motor for a GRT screw pump comprises: one side of the transmission machine is fixedly connected with a case, and one end of the case is fixedly connected with an output flange; the output shaft is movably sleeved inside the output flange, one end of a driving shaft of the driving machine is fixedly connected with a driving gear, the inside of the case is fixedly connected with a second cylindrical roller bearing, the outer circle wall surface of the output shaft is fixedly connected with the inner circle wall surface of the second cylindrical roller bearing, the top surface of the output shaft is fixedly connected with an elastic check ring for a shaft, the inner circle wall surface of the output flange is fixedly connected with a thrust ball bearing, the inner circle wall surface of the thrust ball bearing is movably sleeved with the top surface of the output shaft, and the inside of the output flange is fixedly connected with an oil seal; and the transmission assembly is arranged in the case and used for transmitting power to the output shaft.

Through adopting above-mentioned technical scheme, through setting up transmission assembly, transmission assembly can transmit the transmission machine to the output shaft on.

Preferably, the transmission assembly comprises: the first cylindrical roller bearing is fixedly connected inside the case, and the inner circle wall surface of the inner ring of the first cylindrical roller bearing is fixedly connected with a threaded gear shaft; the driven gear is fixedly connected to the top surface of the threaded gear shaft and is meshed with the driving gear; the output gear is fixedly connected to the top surface of the output shaft, and the output gear is meshed with the threaded gear shaft together.

Through adopting above-mentioned technical scheme, through setting up the transmission, when the drive shaft of transmission was rotating driving gear, the driving gear can drive the screw thread gear shaft through driven gear and rotate this moment to make the screw thread gear shaft pass through output gear and can drive the output shaft and rotate, make the output shaft spread power.

Preferably, the inside of the case is fixedly connected with a first deep groove ball bearing, an inner circular wall surface of an inner ring of the first deep groove ball bearing is fixedly connected with a top surface of the threaded gear shaft, a first distance ring is movably installed between the driven gear and the first cylindrical roller bearing, and the first distance ring is movably sleeved with the threaded gear shaft.

Through adopting above-mentioned technical scheme, through setting up first deep groove ball bearing, first deep groove ball bearing can fix the inside at quick-witted case with the screw gear axle.

Preferably, the inside of the case is fixedly connected with a second deep groove ball bearing, the inner circular wall surface of the inner ring of the second deep groove ball bearing is fixedly connected with the top surface of the threaded gear shaft, the top surface of the threaded gear shaft is fixedly connected with a circlip for holes, and the top surface of the threaded gear shaft is movably sleeved with a sealing ring.

By adopting the technical scheme, the thrust ball bearing is arranged, and the thrust ball bearing is a special bearing for axial force, so that the thrust ball bearing can bear the axial force during high-speed operation, and meanwhile, the thrust ball bearing does not radially position the output shaft, so that the thrust ball bearing does not bear radial load.

Preferably, a third deep groove ball bearing is fixedly connected to the inside of the case, a second distance ring is movably installed between the third deep groove ball bearing and the output gear, and an output shaft of the second distance ring is movably sleeved together.

Through adopting above-mentioned technical scheme, through setting up the output shaft, the inside of fixed to quick-witted case of one end of output shaft through second cylindrical roller bearing because second cylindrical roller bearing is radial force special bearing, bears the operation by the radial load that output gear produced.

Preferably, the top surface of the case is provided with an observation hole, the inside of the observation hole is fixedly connected with a sight hole cover, the bottom surface of the case is provided with an oil drain hole, an oil drain plug is movably sleeved inside the oil drain hole, the top surface of the case is provided with an air vent, the inside of the air vent is fixedly connected with a vent cap, the top surface of the case is provided with a screw groove, and the inside of the screw groove is in threaded connection with a lifting screw.

Through adopting above-mentioned technical scheme, through setting up the screw groove, because the inside threaded connection in screw groove has eyebolt, the later stage of being convenient for is hoisted quick-witted case and is carried etc..

To sum up, the utility model discloses mainly have following beneficial effect:

by arranging the output shaft, after a worker fixedly connects the screw pump rotor with one end of the output shaft, by arranging the transmission machine, when a driving shaft of the transmission machine drives the driving gear to rotate, the driving gear can drive the threaded gear shaft to rotate through the driven gear, so that the threaded gear shaft can drive the output shaft to rotate through the output gear, and the output shaft transmits power, by arranging the thrust ball bearing, as the thrust ball bearing is a special axial force bearing, the thrust ball bearing can bear axial force during high-speed operation, and meanwhile, the thrust ball bearing does not radially position the output shaft, so that the thrust ball bearing does not bear radial load, one end of the output shaft is fixed to the inner part of the case through the second cylindrical roller bearing, as the second cylindrical roller bearing is a special radial force bearing, the radial load generated by the output gear during operation is borne, and meanwhile, the second cylindrical roller bearing is only radially fixed with the case, therefore, the axial load is not born, the axial load and the radial load generated when the screw pump operates can be respectively transmitted to the thrust ball bearing and the second cylindrical roller bearing through the structure, and the torque and the axial load generated by the rotor are simultaneously born by the transmission machine during operation.

Drawings

Fig. 1 is a schematic view of the main view of the half-throwing structure of the present invention.

Reference numerals: 1. a transmission machine; 2. a driving gear; 3. a driven gear; 4. a chassis; 5. a first deep groove ball bearing; 6. an oil drain hole; 7. a first pitch ring; 8. a first cylindrical roller bearing; 9. a threaded gear shaft; 10. a second deep groove ball bearing; 11. a circlip for a hole; 12. a seal ring; 13. an output flange; 14. a third deep groove ball bearing; 15. a thrust ball bearing; 16. an output shaft; 17. oil sealing; 18. a second distance ring; 19. an observation hole; 20. a vent hole; 21. an output gear; 22. a second cylindrical roller bearing; 23. a circlip for the shaft; 24. a screw groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, a speed reduction motor special for a GRT screw pump includes a transmission machine 1, a machine case 4 is fixedly connected to one side of the transmission machine 1, an output flange 13 is fixedly connected to one end of the machine case 4, an output shaft 16 is movably sleeved inside the output flange 13, a driving gear 2 is fixedly connected to one end of a driving shaft of the transmission machine 1, a transmission assembly is arranged inside the machine case 4 and used for transmitting power to the output shaft 16, the transmission assembly includes a first cylindrical roller bearing 8, the first cylindrical roller bearing 8 is fixedly connected inside the machine case 4, a threaded gear shaft 9 is fixedly connected to an inner circular wall surface of an inner ring of the first cylindrical roller bearing 8, a driven gear 3 is fixedly connected to a top surface of the threaded gear shaft 9, the driven gear 3 is meshed with the driving gear 2, an output gear 21 is fixedly connected to a top surface of the output shaft 16, the output gear 21 is meshed with the threaded gear shaft 9, a first deep groove ball bearing 5 is fixedly connected inside the case 4, the inner circular wall surface of the inner ring of the first deep groove ball bearing 5 is fixedly connected with the top surface of a threaded gear shaft 9, a first distance ring 7 is movably arranged between the driven gear 3 and a first cylindrical roller bearing 8, and the first distance ring 7 is movably sleeved with the threaded gear shaft 9;

a second deep groove ball bearing 10 is fixedly connected inside the case 4, the inner circular wall surface of the inner ring of the second deep groove ball bearing 10 is fixedly connected with the top surface of a threaded gear shaft 9, the top surface of the threaded gear shaft 9 is fixedly connected with a hole elastic retainer ring 11, a sealing ring 12 is movably sleeved on the top surface of the threaded gear shaft 9, a second cylindrical roller bearing 22 is fixedly connected inside the case 4, the outer circular wall surface of an output shaft 16 is fixedly connected with the inner circular wall surface of the second cylindrical roller bearing 22, the top surface of the output shaft 16 is fixedly connected with a shaft elastic retainer ring 23, a third deep groove ball bearing 14 is fixedly connected inside the case 4, a second distance ring 18 is movably arranged between the third deep groove ball bearing 14 and the output gear 21, the output shaft 16 of the second distance ring 18 is movably sleeved together, a thrust ball bearing 15 is fixedly connected with the inner circular wall surface of the output flange 13, and the inner circular wall surface of the thrust ball bearing 15 is movably sleeved together with the top surface of the output shaft 16, the inside fixedly connected with oil blanket 17 of output flange 13, observation hole 19 has been seted up to the top surface of quick-witted case 4, and the inside fixedly connected with eye-hole lid of observation hole 19, oil drain hole 6 has been seted up to the bottom surface of quick-witted case 4, and the inside activity cover of oil drain hole 6 is equipped with the oil drain plug, and air vent 20 has been seted up to the top surface of quick-witted case 4, and the inside fixedly connected with ventilation cap of air vent 20, screw groove 24 has been seted up to the top surface of quick-witted case 4, and the internal thread connection of screw groove 24 has eyebolt.

The working principle is as follows: referring to fig. 1, when in use, by providing the output shaft 16, when a worker fixedly connects the screw pump rotor to one end of the output shaft 16, by providing the transmission machine 1, when the driving shaft of the transmission machine 1 drives the driving gear 2 to rotate, the driving gear 2 can drive the threaded gear shaft 9 to rotate through the driven gear 3, so that the threaded gear shaft 9 can drive the output shaft 16 to rotate through the output gear 21, so that the output shaft 16 transmits power, by providing the thrust ball bearing 15, because the thrust ball bearing 15 is a special axial force bearing, it can bear axial force during high-speed operation, and at the same time, the thrust ball bearing 15 does not radially position the output shaft 16, it does not bear radial load, one end of the output shaft 16 is fixed to the inside of the casing 4 through the second cylindrical roller bearing 22, because the second cylindrical roller bearing 22 is a special radial force bearing, the screw pump bears the radial load generated by the output gear 21 during operation, and the second cylindrical roller bearing 22 and the machine case 4 are only fixed in the radial direction, so that the screw pump does not bear the axial load, and the axial load and the radial load generated during the operation of the screw pump are respectively transmitted to the thrust ball bearing 15 and the second cylindrical roller bearing 22 through the structure, so that the transmission machine 1 can bear the torque and the axial load generated by the rotor during the operation at the same time.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a special gear motor of GRT screw pump which characterized in that includes:

the device comprises a transmission machine (1), wherein one side of the transmission machine (1) is fixedly connected with a case (4), and one end of the case (4) is fixedly connected with an output flange (13);

the output shaft (16) is movably sleeved inside the output flange (13), one end of a driving shaft of the transmission machine (1) is fixedly connected with the driving gear (2), the inside of the case (4) is fixedly connected with the second cylindrical roller bearing (22), the outer circle wall surface of the output shaft (16) is fixedly connected with the inner circle wall surface of the second cylindrical roller bearing (22), the top surface of the output shaft (16) is fixedly connected with an elastic collar (23) for a shaft, the inner circle wall surface of the output flange (13) is fixedly connected with a thrust ball bearing (15), the inner circle wall surface of the thrust ball bearing (15) is movably sleeved with the top surface of the output shaft (16), and the inside of the output flange (13) is fixedly connected with an oil seal (17);

a transmission assembly disposed inside the case (4) for transmitting power to the output shaft (16).

2. The special speed reducing motor for a GRT screw pump according to claim 1, wherein the transmission assembly comprises:

the first cylindrical roller bearing (8), the first cylindrical roller bearing (8) is fixedly connected inside the case (4), and the inner circle wall surface of the inner ring of the first cylindrical roller bearing (8) is fixedly connected with a threaded gear shaft (9);

the driven gear (3) is fixedly connected to the top surface of the threaded gear shaft (9), and the driven gear (3) is meshed with the driving gear (2);

the output gear (21) is fixedly connected to the top surface of the output shaft (16), and the output gear (21) is meshed with the threaded gear shaft (9).

3. The special speed reducing motor for the GRT screw pump is characterized in that a first deep groove ball bearing (5) is fixedly connected to the inside of the case (4), the inner circular wall surface of the inner ring of the first deep groove ball bearing (5) is fixedly connected with the top surface of the threaded gear shaft (9), a first distance ring (7) is movably installed between the driven gear (3) and the first cylindrical roller bearing (8), and the first distance ring (7) is movably sleeved with the threaded gear shaft (9).

4. The special speed reducing motor for the GRT screw pump is characterized in that a second deep groove ball bearing (10) is fixedly connected to the inside of the case (4), the inner circle wall surface of the inner ring of the second deep groove ball bearing (10) is fixedly connected with the top surface of the threaded gear shaft (9), a hole elastic check ring (11) is fixedly connected to the top surface of the threaded gear shaft (9), and a sealing ring (12) is movably sleeved on the top surface of the threaded gear shaft (9).

5. The speed reducing motor special for the GRT screw pump as claimed in claim 2, wherein a third deep groove ball bearing (14) is fixedly connected inside the case (4), a second distance ring (18) is movably installed between the third deep groove ball bearing (14) and the output gear (21), and an output shaft (16) of the second distance ring (18) is movably sleeved together.

6. The special speed reducing motor for the GRT screw pump is characterized in that an observation hole (19) is formed in the top surface of the case (4), a sight hole cover is fixedly connected to the inside of the observation hole (19), an oil drain hole (6) is formed in the bottom surface of the case (4), an oil drain plug is movably sleeved in the oil drain hole (6), an air vent (20) is formed in the top surface of the case (4), a ventilation cap is fixedly connected to the inside of the air vent (20), a screw groove (24) is formed in the top surface of the case (4), and a lifting screw is connected to the inside of the screw groove (24) in a threaded manner.