CN115263658A - Gear motor with double driven teeth and double rotation directions and high rotation speed - Google Patents
Gear motor with double driven teeth and double rotation directions and high rotation speed Download PDFInfo
- Publication number
- CN115263658A CN115263658A CN202211053862.1A CN202211053862A CN115263658A CN 115263658 A CN115263658 A CN 115263658A CN 202211053862 A CN202211053862 A CN 202211053862A CN 115263658 A CN115263658 A CN 115263658A
- Authority
- CN
- China
- Prior art keywords
- oil
- gear
- double
- rotation
- way
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims description 15
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 239000003566 sealing material Substances 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C2/00—Rotary-piston engines
- F03C2/08—Rotary-piston engines of intermeshing-engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Motors (AREA)
Abstract
The invention discloses a gear motor with double driven gears rotating in double directions to high rotation speed, which comprises a shell and a rear cover, wherein one end of the shell is provided with a gear installation cavity, a driving gear, a driven gear I and a driven gear II are arranged in the gear installation cavity, and the driven gear I and the driven gear II are symmetrically arranged and are simultaneously meshed with the driving gear; the rear cover is provided with a first oil inlet and outlet, a second oil inlet and outlet, a first oil way, a second oil way, a third oil way and a fourth oil way. The gear motor adopts a double-slave-tooth structure, two slave teeth are symmetrical relative to a master tooth, double oil supply amount in the same space is realized, radial force borne by a driving gear is balanced, and the service life of the gear pump is prolonged; the gear motor is integrally cylindrical, so that the overall material is saved, the installation mode is that clamping grooves on two sides of a pump body are installed in a clamping mode, and the installation space is greatly saved in the axial direction and the radial direction; through setting up the oil blanket that uses the oil blanket seat as the skeleton, star type sealing washer as the sealing material, can bear higher backpressure, higher rotational speed, be difficult to lead to the oil blanket to be washed out by high-pressure oil.
Description
Technical Field
The invention relates to the technical field of hydraulic power equipment, in particular to a gear motor with double driven teeth and double rotation directions at high rotation speed.
Background
The hydraulic motor is an actuator of the hydraulic system, which converts the hydraulic pressure energy provided by the hydraulic pump into mechanical energy (torque and rotational speed) of its output shaft. Liquids are media that transmit forces and motions. Hydraulic motors, also known as oil motors, are mainly used in injection molding machines, ships, cranes, engineering machines, construction machines, coal mine machines, mining machines, metallurgical machines, marine machines, petrochemical machines, port machines, and the like.
In the prior art, a conventional hydraulic motor generally has a spigot, a mounting hole, a threaded oil port or a flange oil port, and has an irregular shape, so that the conventional hydraulic motor occupies a mounting space; meanwhile, in the conventional hydraulic motor in the prior art, one driving gear and one driven gear are adopted, radial force is required to be applied to the driving gear in the working process, the service life of the gear motor can be reduced, in addition, the conventional gear motor is mostly sealed by a rotary shaft lip-shaped sealing ring, the pressure borne by the sealing is small, and the conventional hydraulic motor cannot operate under the conditions of high rotating speed and high back pressure.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a gear motor with double driven gears rotating in double directions to high rotation speed so as to solve the problem that radial force needs to be applied to the driving gear in the working process.
The invention provides a gear motor with double driven gears rotating towards high rotation speed, which comprises a shell and a rear cover, wherein one end of the shell is provided with a gear installation cavity, a driving gear, a driven gear I and a driven gear II are arranged in the gear installation cavity, and the driven gear I and the driven gear II are symmetrically arranged and are simultaneously meshed with the driving gear; the rear cover is provided with a first oil inlet and outlet, a second oil inlet and outlet, a first oil way, a second oil way, a third oil way and a fourth oil way; the first oil inlet and outlet is communicated to the gear mounting cavity through the first oil way and the second oil way, and the second oil inlet and outlet is communicated to the gear mounting cavity through the third oil way and the fourth oil way.
Furthermore, the first oil way and the second oil way are arranged in a central symmetry manner and are communicated through a first communication cavity channel which is communicated with the first oil inlet and outlet; the oil way III and the oil way IV are arranged in a centrosymmetric manner and are communicated through the communicating cavity channel II, and the communicating cavity channel II is communicated with the oil inlet and outlet port II.
Furthermore, the first communicating cavity channel and the second communicating cavity channel are blind holes, the outer ends of the blind holes are provided with plugs, and the blind holes extend along the radial direction of the rear cover.
Furthermore, the shell and the rear cover are cylindrical, a pair of installation clamping grooves are formed in the circumferential surface of the shell, and the installation clamping grooves extend along the axial direction of the shell.
Furthermore, be equipped with the oil blanket between the pivot of driving gear and the casing, the oil blanket includes oil seal seat and star type sealing washer.
Further, a first reversing oil way and a second reversing oil way are arranged on the shell, and one ends of the first reversing oil way and the second reversing oil way are communicated with the gear installation cavity; the other ends of the first reversing oil way and the second reversing oil way are communicated with each other and extend to the position of the oil seal seat, a first one-way valve is arranged in the first reversing oil way, and a second one-way valve is arranged in the second reversing oil way.
Furthermore, the first check valve and the second check valve are respectively provided with a plug and a ball.
The gear motor with double slave teeth rotating in double directions to high rotation speed provided by the invention adopts a double slave tooth structure, and the two slave teeth are symmetrical relative to the master tooth, so that the double oil supply amount in the same space is realized, the radial force borne by the driving gear is balanced, and the service life of the gear pump is prolonged; the gear motor is integrally cylindrical, so that the overall material is saved, the mounting mode is that clamping grooves on two sides of a pump body are mounted in a clamping mode, and the mounting space is greatly saved in the axial direction and the radial direction compared with the motor with the same specification; by arranging the oil seal with the oil seal seat as a framework and the star-shaped sealing ring as a sealing material, higher back pressure can be borne, and the oil seal is not easy to be washed down by high-pressure oil; through setting up four check valves, any spiral downward homoenergetic realizes that the gear stabilizes output hydraulic medium, and the switching-over is simple easy to operate.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a front view of a dual slave tooth dual direction high speed gear motor of the present invention;
FIG. 2 is a top view of the dual slave tooth dual rotary direction high speed gear motor of the present invention;
FIG. 3 is a right side view of the dual slave tooth dual direction high speed gear motor of the present invention;
FIG. 4 is a sectional view of the present invention taken along line F-F of a double slave tooth double rotation high speed gear motor;
FIG. 5 isbase:Sub>A sectional view taken along line A-A ofbase:Sub>A double slave tooth double rotation high speed gear motor of the present invention;
FIG. 6 is a sectional view of the gear motor of the present invention, shown in the direction B-B, showing the double driven teeth rotating in double direction to high rotation speed;
FIG. 7 is a C-C cross sectional view of the double slave tooth double rotation high speed gear motor of the present invention;
FIG. 8 is a cross-sectional view of the double slave tooth double rotation direction high speed gear motor of the present invention taken along line D-D;
FIG. 9 is a cross-sectional view taken along line E-E of the double slave tooth double rotation high speed gear motor of the present invention;
description of the reference numerals
1. A housing; 2. a rear cover; 3. a driving gear; 4. a first driven gear; 5. a driven gear II; 6. an oil seal seat; 7. a star-shaped seal ring; 11. installing a clamping groove; 13. a one-way valve I; 14. a second one-way valve; 15. a reversing oil way I; 16. a reversing oil way II; 21. an oil inlet and an oil outlet I; 22. an oil inlet and an oil outlet II; 23. a first communicating cavity; 24. a second cavity channel is communicated; 25. a first oil way; 26. an oil way II; 27. an oil way III; 28. and an oil path IV.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 9, the gear motor with double driven gears rotating in double directions to high rotation speed of the present invention comprises a housing 1 and a rear cover 2, wherein one end of the housing 1 is provided with a gear installation cavity, a driving gear 3, a driven gear 4 and a driven gear 5 are arranged in the gear installation cavity, the driven gear 4 and the driven gear 5 are symmetrically arranged and are simultaneously engaged with the driving gear 3; the rear cover 2 is provided with a first oil inlet/outlet port 21 and a second oil inlet/outlet port 22 which are communicated with an external oil path, the rear cover 2 is further provided with a first oil path 25, a second oil path 26, a third oil path 27 and a fourth oil path 28, the first oil inlet/outlet port 21 is communicated with the gear installation cavity through the first oil path 25 and the second oil path 26, and the second oil inlet/outlet port 22 is communicated with the gear installation cavity through the third oil path 27 and the fourth oil path.
Specifically, as shown in fig. 6 to 8, the first oil path 25 and the second oil path 26 are arranged in a central symmetry manner, and are communicated with each other through the first communication cavity channel 23, and the first oil path 25 and the second oil path 26 are connected to the first oil inlet/outlet port 21 through the first communication cavity channel 23; the third oil path 27 and the fourth oil path 28 are arranged in a central symmetry mode and are communicated through the second communication cavity channel 24, and the third oil path 27 and the fourth oil path 28 are connected to the second oil inlet and outlet port 22 through the second communication cavity channel 24. The first communication cavity channel 23 and the second communication cavity channel 24 comprise blind holes and plugs arranged at the outer ends of the blind holes, and the blind holes extend along the radial direction of the rear cover 2.
When the gear motor works, hydraulic medium enters the rear cover 2 from the first oil inlet/outlet 21, then enters the gear mounting cavity through the first communication cavity channel 23, the first oil channel 25 and the second oil channel 26, then flows into the second communication cavity channel 24 through the third oil channel 27 and the fourth oil channel 28, and finally flows out from the second oil inlet/outlet 22 to form a closed-loop oil channel. In the process of unidirectional flow of the hydraulic medium, the first driven gear 4 and the second driven gear 5 are driven to synchronously rotate, and then the driving gear 3 is driven to rotate, so that the process of converting the hydraulic pressure energy into the mechanical energy of the output shaft is completed.
The hydraulic medium transmitted by the hydraulic gear motor through one oil inlet is respectively supplied to two meshed gears after being shunted by the oil path cavity, and the hydraulic medium transmitted by the gears is integrated and converged to the same oil outlet through the oil path cavity. The two pairs of meshing gears share the same oil inlet and outlet, so that the oil supply amount is doubled.
As shown in fig. 1 to 3, the casing 1 and the rear cover 2 are both cylindrical as a whole, a pair of mounting notches 11 are formed in the circumferential surface of the casing 1, the mounting notches 11 extend in the axial direction, and the hydraulic gear motor is installed in a clamping manner with an external connecting piece through the mounting notches 11. This hydraulic motor wholly is cylindric, practices thrift whole material, adopts the draw-in groove clamp type installation, compares in the motor with the specification in the axial with radially all great saving the installation space.
As shown in fig. 4, an oil seal is provided between the rotating shaft of the driving gear 3 and the housing 1, and the oil seal includes an oil seal seat 6 and a star-shaped seal ring 7. The gear motor adopts a unique sealing structure because of performance indexes of high rotating speed and high back pressure required by the gear motor, the sealing mode of the gear motor is sealed by a traditional rotating shaft lip-shaped sealing ring, an oil seal seat is changed into a combined structure which takes an oil seal seat as a framework and a star-shaped sealing ring as a sealing material, compared with the traditional sealing mode, the gear motor can bear 0.6MPa of back pressure, the oil seal seat 6 structure can bear 3MPa of back pressure, and the star-shaped sealing ring 7 which surrounds the inside of the oil seal seat is of a winding structure, so that the gear motor is fully ensured to have better ductility under pressure impact, bear higher back pressure and be difficult to cause the oil seal to be broken down by high-pressure oil. In addition, compare in traditional seal structure, the linear velocity that this application hydraulic motor's high rotational speed performance required is higher, and the star type sealing washer linear velocity bearing capacity of oil seal seat is superior to ordinary rotation axis lip oil blanket.
As shown in fig. 5 and 9, a first reversing oil path 15 and a second reversing oil path 16 are arranged on the shell 1, and one ends of the first reversing oil path 15 and the second reversing oil path 16 are communicated with the gear installation cavity; the other ends of the first reversing oil way 15 and the second reversing oil way 16 extend to the oil seal seat and are communicated with each other, a one-way valve I13 is arranged in the first reversing oil way 15, and a one-way valve II 14 is arranged in the second reversing oil way 16; wherein, the first check valve 13 and the second check valve 14 are respectively provided with a plug and a ball.
When the oil inlet and the oil outlet of the hydraulic motor are interchanged, the oil pressure in the first reversing oil way 15 and the second reversing oil way 16 is instantly increased or reduced, the first check valve 13 and the second check valve 14 are pushed to move, the steering directions of the driving gear 3, the first driven gear 4 and the second driven gear 5 are also changed, and at the moment, the first reversing oil way 15 and the second reversing oil way 16 are communicated to finish pressure relief; by arranging the one-way valve I13 and the one-way valve II 14, the situation that pressure oil in a gear cavity cannot be removed when the hydraulic motor is reversed is avoided, the impact of the quick steering of the driving gear 3 on the oil seal seat is relieved, and the service life of the oil seal is prolonged.
The hydraulic gear motor is provided with the four one-way valves in the oil path, and the four one-way valves are disengaged or closed according to different pressures in the pipeline, so that the oil inlet and the oil outlet at the end connected with the oil seal are interchanged, the gear can stably output a hydraulic medium in any rotating direction, and the reversing is simple and easy to operate.
The operation of the double-driven-tooth double-rotation-direction high-rotation-speed gear motor of the invention is briefly described below with reference to the accompanying drawings.
When the gear motor works, a hydraulic medium enters the rear cover 2 from the oil inlet/outlet port I21, then enters the gear installation cavity through the communication cavity I23, the oil path I25 and the oil path II 26, then flows into the communication cavity II 24 through the oil path III 27 and the oil path IV 28, and finally flows out from the oil inlet/outlet port II 22 to form a closed-loop oil path. In the process of unidirectional flow of the hydraulic medium, the first driven gear 4 and the second driven gear 5 are driven to synchronously rotate, and then the driving gear 3 is driven to rotate, so that the process of converting the hydraulic pressure energy into the mechanical energy of the output shaft is completed.
When the oil inlet and the oil outlet of the hydraulic motor are interchanged, the oil pressure in the first reversing oil way 15 and the second reversing oil way 16 is instantly increased or decreased, the first check valve 13 and the second check valve 14 are pushed to move, and the first reversing oil way 15 and the second reversing oil way 16 are communicated to complete pressure relief; the problem that pressure oil in a gear cavity cannot be removed when a hydraulic motor is reversed is avoided, impact on an oil seal seat caused by rapid steering of the driving gear 3 is relieved, and the service life of an oil seal is prolonged.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A gear motor with double driven teeth and double rotation directions to high rotation speed is characterized by comprising a shell (1) and a rear cover (2),
one end of the shell (1) is provided with a gear installation cavity, a driving gear (3), a driven gear I (4) and a driven gear II (5) are arranged in the gear installation cavity, and the driven gear I (4) and the driven gear II (5) are symmetrically arranged and are simultaneously meshed with the driving gear (3) in a gear manner;
the rear cover (2) is provided with a first oil inlet/outlet (21), a second oil inlet/outlet (22), a first oil way (25), a second oil way (26), a third oil way (27) and a fourth oil way (28); the first oil inlet and outlet (21) is communicated with the gear installation cavity through the first oil way (25) and the second oil way (26), and the second oil inlet and outlet (22) is communicated with the gear installation cavity through the third oil way (27) and the fourth oil way (28).
2. The double-slave-tooth double-rotation high-rotation-speed gear motor according to claim 1, wherein the first oil passage (25) and the second oil passage (26) are arranged in a central symmetry manner and are communicated through a first communication cavity (23), and the first communication cavity (23) is communicated with the first oil inlet/outlet (21); the oil way III (27) and the oil way IV (28) are arranged in a central symmetry mode, the oil way III and the oil way IV are communicated through a communicating cavity channel II (24), and the communicating cavity channel II (24) is communicated with the oil inlet/outlet port II (22).
3. The double-slave-tooth double-rotation-direction high-rotation-speed gear motor according to claim 2, wherein the first communication channel (23) and the second communication channel (24) are blind holes with plugs mounted at outer ends, and the blind holes extend in the radial direction of the rear cover (2).
4. The double-driven-tooth double-rotation-direction high-rotation-speed gear motor according to claim 1, wherein the housing (1) and the rear cover (2) are cylindrical, and a pair of mounting notches (11) are provided on a circumferential surface of the housing (1), the mounting notches (11) extending in an axial direction of the housing (1).
5. The double-driven-tooth double-rotation-direction high-rotation-speed gear motor according to claim 1, wherein an oil seal is arranged between a rotating shaft of the driving gear (3) and the housing (1), and the oil seal comprises an oil seal seat (6) and a star-shaped sealing ring (7).
6. The double-slave-tooth double-rotation-direction high-rotation-speed gear motor according to claim 5, wherein a first reversing oil path (15) and a second reversing oil path (16) are arranged on the housing (1), and one ends of the first reversing oil path (15) and the second reversing oil path (16) are communicated with the gear installation cavity; the other ends of the first reversing oil way (15) and the second reversing oil way (16) are communicated with each other and extend to the position of the oil seal seat (6), a one-way valve (13) is arranged in the first reversing oil way (15), and a one-way valve (14) is arranged in the second reversing oil way (16).
7. The double-slave-tooth double-rotation-direction high-rotation-speed gear motor according to claim 6, wherein the first check valve (13) and the second check valve (14) are respectively provided with a plug and a ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211053862.1A CN115263658A (en) | 2022-08-31 | 2022-08-31 | Gear motor with double driven teeth and double rotation directions and high rotation speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211053862.1A CN115263658A (en) | 2022-08-31 | 2022-08-31 | Gear motor with double driven teeth and double rotation directions and high rotation speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115263658A true CN115263658A (en) | 2022-11-01 |
Family
ID=83755011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211053862.1A Pending CN115263658A (en) | 2022-08-31 | 2022-08-31 | Gear motor with double driven teeth and double rotation directions and high rotation speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115263658A (en) |
-
2022
- 2022-08-31 CN CN202211053862.1A patent/CN115263658A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101372992B (en) | Method for converting fluid input into torque and swinging angle outputs and specific oil cylinder | |
| AU2015292611B2 (en) | External gear pump integrated with two independently driven prime movers | |
| CN201225348Y (en) | Hydraulic two-stage spiral swinging oil cylinder | |
| US4909714A (en) | Pressure balanced external gear pump or motor of floating shaft type | |
| CN102434382B (en) | Radial piston rolling ball type end face valve low-speed high-torque hydraulic motor | |
| KR100462434B1 (en) | Two speed gerotor motor with pressurized recirculation | |
| CN218030428U (en) | Gear motor with double driven teeth and double rotation directions and high rotation speed | |
| CN115263658A (en) | Gear motor with double driven teeth and double rotation directions and high rotation speed | |
| CN216342554U (en) | Inner curve hydraulic motor with bidirectional oil distribution | |
| CN204327396U (en) | Compact axial flow distribution cycloid hydraulic motor with short shell | |
| CN213870994U (en) | Hydraulic centrifugal force transmission | |
| CN111765040B (en) | Hydraulic motor with stator shrinkage type oil baffle flashboard | |
| CN215949724U (en) | Axial flow distribution cycloid hydraulic motor | |
| CN212155034U (en) | Double-output-shaft flow distribution cycloid hydraulic motor | |
| CN103206508A (en) | Novel hydraulic torque converter | |
| CN101660577A (en) | Overrunning clutch device | |
| CN109441709B (en) | A compact high-torque anti-pollution gear hydraulic motor | |
| CN109404276B (en) | Double-acting vane pump | |
| CN109109971B (en) | Full hydraulic steering gear | |
| CN209892441U (en) | Bidirectional gear oil pump | |
| CN222276836U (en) | A cycloid hydraulic motor with shaft flow distribution | |
| CN222010395U (en) | Cycloid hydraulic motor | |
| CN104632571B (en) | Valve matches somebody with somebody formula binary channels piston valving pump | |
| WO2018108039A1 (en) | Cycloid hydraulic motor | |
| CN218953478U (en) | Axle joins in marriage class cycloid hydraulic motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |