CN107791824B - Low-speed large-torque shell-turning hydraulic motor for axle and heavy transport vehicle - Google Patents
Low-speed large-torque shell-turning hydraulic motor for axle and heavy transport vehicle Download PDFInfo
- Publication number
- CN107791824B CN107791824B CN201711218063.4A CN201711218063A CN107791824B CN 107791824 B CN107791824 B CN 107791824B CN 201711218063 A CN201711218063 A CN 201711218063A CN 107791824 B CN107791824 B CN 107791824B
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- China
- Prior art keywords
- shell
- stator
- hydraulic motor
- axle
- valve plate
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- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 239000003921 oil Substances 0.000 claims description 41
- 239000010720 hydraulic oil Substances 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0015—Disposition of motor in, or adjacent to, traction wheel the motor being hydraulic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0038—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the wheel axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses a low-speed large-torque shell-rotating hydraulic motor for an axle and a heavy transport vehicle, wherein a transmission shaft of the hydraulic motor is fixed with the axle of the vehicle, a shell of the hydraulic motor is fixed with wheels, a main body part of the hydraulic motor is arranged in a hub of the wheels, a plunger of the hydraulic motor and a stator generate acting force through the change of an internal oil way of the hydraulic motor, and after the stator rotates, the shell of the hydraulic motor rotates to drive the wheels to rotate.
Description
Technical Field
The invention relates to a hydraulic motor, in particular to a low-speed high-torque shell-turning hydraulic motor for an axle and a heavy-duty transport vehicle.
Background
In mines, tunnels and coal mine transportation, heavy transportation vehicles are required, and hydraulic motors for providing power for the heavy transportation vehicles are arranged on the heavy transportation vehicles and drive wheels of the transportation vehicles to enable the vehicles to travel.
At present, a hydraulic motor is used for driving engineering vehicles on the market, and a traditional wheel-side hydraulic motor is generally adopted on an axle. The traditional wheel side hydraulic motor shell is arranged on an axle of the engineering vehicle and is placed in the vehicle body, the hydraulic motor shell and the vehicle body are kept relatively static, and a transmission shaft of the hydraulic motor is connected with a wheel hub. The engineering vehicle drives the transmission shaft of the hydraulic motor to rotate through high-pressure hydraulic oil provided by the vehicle-mounted hydraulic system, and the transmission shaft of the hydraulic motor drives the wheels to drive, so that the engineering vehicle is driven to travel.
An automobile axle (also called an axle) is connected with a frame (or a bearing type automobile body) through a suspension, and wheels are arranged at two ends of the axle. The axle is used for bearing the load of the automobile and maintaining the normal running of the automobile on a road.
Because the volume of the hydraulic motor shell is larger, when the motor shell consisting of the front cover, the stator, the rear cover and the like is arranged in the vehicle body, the motor shell can occupy a larger space position on the vehicle body, and the vehicle body space is narrow, so that the problems of troublesome installation, complex layout, difficult maintenance, high cost and the like of the hydraulic motor can be caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing a low-speed large-torque shell-turning hydraulic motor for an axle and further provides an engineering transport vehicle using the hydraulic motor. The wheel hub and the wheel are driven to rotate through the rotation of the shell of the hydraulic motor, the main body (shell) of the hydraulic motor is installed in the wheel hub of the wheel, the transmission shaft of the hydraulic motor is fixedly connected with the axle, the complexity of installation and the requirement on the space of the vehicle body are reduced, and the installation, the disassembly, the maintenance and other daily maintenance work of the hydraulic motor are facilitated.
The technical scheme adopted for solving the technical problems is as follows: the low-speed large-torque shell-rotating hydraulic motor for the vehicle axle comprises a rotating shaft, a rotor, a stator and a motor shell, wherein a transmission shaft of the hydraulic motor is fixedly connected with the vehicle axle; the motor shell is fixedly connected with the vehicle hub, the motor shell is fixedly connected with the valve plate, the valve plate is in sliding connection with the rotor, and the valve plate is in sliding connection with the valve shaft; the motor shell is connected with the motor transmission shaft through a rolling bearing;
an oil inlet and an oil outlet are formed in the transmission shaft, an axial oil inlet passage and an axial oil return passage are formed in the transmission shaft, and the oil inlet passage and the oil return passage are respectively connected with the vehicle-mounted hydraulic system;
hydraulic oil flows into an oil inlet oil duct in the transmission shaft from an oil inlet, flows into a valve plate through a valve shaft and flows into a plunger hole of the rotor, hydraulic oil in the plunger hole pushes the plunger and the roller to move in a direction away from the circle center of the rotor, when the roller contacts an inner curved surface of the stator, the stator is acted by the thrust force of the roller, the thrust force acts on the inner curved surface of the stator, the inner curved surface of the stator enables the thrust force to generate tangential component force (component force tangential to the circumference of the stator), and the generated tangential component force enables the stator to rotate relative to the rotor.
The invention further preferably comprises the following steps: when the stator rotates, the plunger and the roller of the plunger hole are pushed to retract to the plunger hole under the extrusion of the inner curved surface of the stator, and hydraulic oil in the plunger hole is pushed to flow back to the vehicle-mounted hydraulic system.
The invention further preferably comprises the following steps: the motor shell comprises a front cover and a rear cover, and the front cover, the rear cover and the stator are fastened and connected through screws.
The invention further preferably comprises the following steps: the front cover is arranged on the transmission shaft through the rolling bearing, the front cover is connected with the hub through bolt fastening, the rear cover and the valve plate fixing plate are positioned through the positioning pin and kept relatively static, and the valve plate fixing plate are mutually fixed.
The invention further preferably comprises the following steps: the periphery of the outer side of the valve plate is provided with a plurality of first planes, the inner side of the valve plate fixing plate is provided with a plurality of second planes, and when the valve plate is fixed with the valve plate fixing plate, the first planes are matched with the second planes.
A heavy transportation vehicle characterized by comprising the low-speed high-torque shell-rotor hydraulic motor for an axle in the above scheme.
Compared with the prior art, the invention has the advantages that the transmission shaft of the hydraulic motor is fixed with the axle of the vehicle, the shell of the hydraulic motor is fixed with the wheels, the main body part of the hydraulic motor is arranged in the hubs of the wheels, the rollers and the stator of the hydraulic motor generate acting force through the change of the internal oil way of the hydraulic motor, and after the stator rotates, the shell of the hydraulic motor rotates to drive the wheels to rotate.
Drawings
FIG. 1 is a general view of an axle of the present invention;
FIG. 2 is a block diagram of a low speed, high torque shell-to-hydraulic motor for an axle of the present invention;
FIG. 3 is a cross-sectional view of a stator and rotor construction of the present invention;
FIG. 4 is a schematic diagram of the fit relationship and force between the stator and the roller according to the present invention;
FIG. 5 is a block diagram of a port plate retention plate of the present invention;
FIG. 6 is a block diagram of a port plate of the present invention;
fig. 7 is a view showing an assembled structure of a port plate and a port plate fixing plate according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
The engineering transport vehicle comprises a vehicle body, wheels 1 and an axle 2, wherein the axle 2 is fixed with a transmission shaft 3 of a hydraulic motor M, the hydraulic motor M is directly arranged in a hub 4, and a front cover of the hydraulic motor M is fixed with the hub 4 and the wheels 1 of the vehicle.
The low-speed large-torque shell-turning hydraulic motor for the axle comprises a rotating shaft 3, a rotor 6, a stator 5 and a motor shell 7, wherein the transmission shaft 3 is fixedly connected with the axle 2 of the vehicle; the rotor 6 is connected with the transmission shaft 3 through a spline.
The motor shell 7 is fixedly connected with the vehicle hub 4, the motor shell 7 is fixedly connected with the valve plate 8, the valve plate 8 is in sliding connection with the rotor 6, and the valve plate 8 is in sliding connection with the valve shaft 9; the motor housing 7 is fixed with the stator 5;
an oil inlet K1 and an oil outlet K2 are formed in the transmission shaft 3, an axial oil inlet oil duct L1 and an axial oil return oil duct L2 are formed in the transmission shaft 3, and the oil inlet oil duct L1 and the oil return oil duct L2 are connected with a vehicle-mounted hydraulic system through the oil inlet K1 and the oil outlet K2 respectively;
the hydraulic oil flows into the oil inlet oil duct L1 in the transmission shaft 3 from the oil inlet K1, flows into the flow distribution shaft 9 through the oil port K3, flows into the flow distribution plate 8 through the oil port K4, flows into the plunger hole 10 of the rotor 6 through the oil port K5, the hydraulic oil in the plunger hole 10 pushes the plunger 11 and the roller 12 to move towards the direction far away from the center of the rotor, when the roller 12 contacts with the inner curved surface of the stator 5, the resistance of the inner curved surface of the stator 5 is received, according to Newton's third law (reaction force principle), the stator receives acting force with the same magnitude and opposite direction, the acting force acts on the inner curved surface of the stator and can be decomposed into radial component Fr and tangential component Ft, and under the action of the tangential component Ft, the stator 5 rotates relative to the rotor 6 (shown in figure 4).
When the stator 5 rotates, the plunger 11 and the roller 12 of the plunger hole 10 are retracted to the plunger hole 10 under the extrusion of the inner curved surface of the stator 5, and hydraulic oil in the plunger hole 10 is pushed to flow back to the vehicle-mounted hydraulic system through the oil ports K6, K7, K8 and K2. The oil return path is pressureless, and when the oil return path is connected with the plunger hole, the hydraulic oil in the plunger hole loses pressure and is changed into low-pressure hydraulic oil from high-pressure hydraulic oil. The plunger hole in the pressure loss is the plunger hole when the plunger hole is communicated with the oil return path.
The motor housing 7 includes a front cover 71 and a rear cover 72, and the front cover 71, the rear cover 72 and the stator 5 are connected by screw fastening 13.
The front cover 71 is mounted on the transmission shaft 3 through the rolling bearing 14, the front cover 71 is fastened to the hub 4 through bolts 15, the rear cover 72 and the valve plate fixing plate 16 are positioned and kept relatively stationary through positioning pins, and the valve plate 8 and the valve plate fixing plate 16 are fixed to each other. The periphery of the outer side of the valve plate 8 is provided with a plurality of first planes 81, the inner side of the valve plate fixing plate 16 is provided with a plurality of second planes 161, and when the valve plate 8 is fixed with the valve plate fixing plate 16, the first planes 81 and the second planes 161 are matched with each other.
The low-speed torque shell-turn hydraulic motor for the axle and the engineering transport vehicle provided by the invention are described in detail, and specific examples are applied to illustrate the principle and the implementation mode of the invention, and the description of the examples is only used for helping to understand the invention and the core idea. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (6)
1. A low-speed big moment of torsion shell changes hydraulic motor for axle, its characterized in that: the motor comprises a transmission shaft, a rotor, a stator and a motor shell, wherein the transmission shaft is fixedly connected with an axle of a vehicle;
the motor shell is fixedly connected with the vehicle hub, the motor shell is fixedly connected with the valve plate, the valve plate is in sliding connection with the rotor, and the valve plate is in sliding connection with the valve shaft; the motor shell is fixed with the stator;
an oil inlet and an oil outlet are formed in the transmission shaft, an axial oil inlet passage and an axial oil return passage are formed in the transmission shaft, and the oil inlet passage and the oil return passage are connected with the vehicle-mounted hydraulic system;
hydraulic oil flows into an oil inlet oil duct in the transmission shaft from the oil inlet, flows into the valve plate through the valve shaft and flows into a plunger hole of the rotor, hydraulic oil in the plunger hole pushes the plunger and the roller to move in a direction away from the circle center of the rotor, when the roller contacts with the inner curved surface of the stator, the resistance of the inner curved surface of the stator is received, and the stator receives opposite acting force to enable the stator to rotate relative to the rotor.
2. The low-speed high-torque shell-rotor hydraulic motor for an axle according to claim 1, wherein when the stator rotates, the plunger and the roller of the plunger hole, which are not pressurized, retract into the plunger hole under the extrusion of the inner curved surface of the stator, and hydraulic oil in the plunger hole is pushed to flow back to the vehicle-mounted hydraulic system.
3. The low-speed, high-torque, shell-to-hydraulic motor for an axle of claim 1, wherein the motor housing comprises a front cover and a rear cover, the front cover, the rear cover and the stator being fastened by screws.
4. A low-speed high-torque shell-rotor hydraulic motor for an axle according to claim 3, wherein the front cover is mounted on the drive shaft by a rolling bearing, the front cover is connected to the hub by bolting, the rear cover and the valve plate fixing plate are positioned and held relatively stationary by a positioning pin, and the valve plate fixing plate are fixed to each other.
5. The low-speed high-torque shell-rotor hydraulic motor for an axle of claim 4, wherein a plurality of first planes are provided around the outside of said valve plate, a plurality of second planes are provided inside said valve plate fixing plate, and said first planes are matched with said second planes when said valve plate is fixed to said valve plate fixing plate.
6. Heavy transportation vehicle characterized by comprising a low-speed high torque shell-turn hydraulic motor for an axle according to any of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711218063.4A CN107791824B (en) | 2017-11-28 | 2017-11-28 | Low-speed large-torque shell-turning hydraulic motor for axle and heavy transport vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711218063.4A CN107791824B (en) | 2017-11-28 | 2017-11-28 | Low-speed large-torque shell-turning hydraulic motor for axle and heavy transport vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107791824A CN107791824A (en) | 2018-03-13 |
| CN107791824B true CN107791824B (en) | 2023-12-05 |
Family
ID=61537022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711218063.4A Active CN107791824B (en) | 2017-11-28 | 2017-11-28 | Low-speed large-torque shell-turning hydraulic motor for axle and heavy transport vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107791824B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1089439A (en) * | 1996-09-11 | 1998-04-07 | Keihin Seiki Mfg Co Ltd | Assembly of power unit and driving wheel |
| CN201297128Y (en) * | 2008-11-05 | 2009-08-26 | 宁波市恒通液压科技有限公司 | Portable emulsion liquid drilling machine |
| CN203822539U (en) * | 2014-04-29 | 2014-09-10 | 安徽理工大学 | Torque self-checking inner curve hydraulic motor |
| CN105179157A (en) * | 2015-09-15 | 2015-12-23 | 宁波斯达弗液压传动有限公司 | Outer-curve radial plunger hydraulic motor |
| CN206190451U (en) * | 2016-10-27 | 2017-05-24 | 李海荣 | Big moment of torsion shell of ultralow speed changes steel ball hydraulic motor |
| CN206221143U (en) * | 2016-11-18 | 2017-06-06 | 秦皇岛正时乐液压设备有限公司 | A kind of housing rotates the inner curve low speed high torque hydraulic motor of output torque |
| CN106988958A (en) * | 2017-04-05 | 2017-07-28 | 温州职业技术学院 | Low-speed big axial-piston hydraulic motor |
| CN207496450U (en) * | 2017-11-28 | 2018-06-15 | 宁波恒通诺达液压股份有限公司 | For the low-speed big shell-rotating hydraulic motor and heavy goods vehicle of vehicle bridge |
-
2017
- 2017-11-28 CN CN201711218063.4A patent/CN107791824B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1089439A (en) * | 1996-09-11 | 1998-04-07 | Keihin Seiki Mfg Co Ltd | Assembly of power unit and driving wheel |
| CN201297128Y (en) * | 2008-11-05 | 2009-08-26 | 宁波市恒通液压科技有限公司 | Portable emulsion liquid drilling machine |
| CN203822539U (en) * | 2014-04-29 | 2014-09-10 | 安徽理工大学 | Torque self-checking inner curve hydraulic motor |
| CN105179157A (en) * | 2015-09-15 | 2015-12-23 | 宁波斯达弗液压传动有限公司 | Outer-curve radial plunger hydraulic motor |
| CN206190451U (en) * | 2016-10-27 | 2017-05-24 | 李海荣 | Big moment of torsion shell of ultralow speed changes steel ball hydraulic motor |
| CN206221143U (en) * | 2016-11-18 | 2017-06-06 | 秦皇岛正时乐液压设备有限公司 | A kind of housing rotates the inner curve low speed high torque hydraulic motor of output torque |
| CN106988958A (en) * | 2017-04-05 | 2017-07-28 | 温州职业技术学院 | Low-speed big axial-piston hydraulic motor |
| CN207496450U (en) * | 2017-11-28 | 2018-06-15 | 宁波恒通诺达液压股份有限公司 | For the low-speed big shell-rotating hydraulic motor and heavy goods vehicle of vehicle bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107791824A (en) | 2018-03-13 |
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