CN108656939B - Method for assembling electric wheels of dump truck - Google Patents
Method for assembling electric wheels of dump truck Download PDFInfo
- Publication number
- CN108656939B CN108656939B CN201810415875.6A CN201810415875A CN108656939B CN 108656939 B CN108656939 B CN 108656939B CN 201810415875 A CN201810415875 A CN 201810415875A CN 108656939 B CN108656939 B CN 108656939B
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- Prior art keywords
- traction motor
- wheel
- reduction gear
- brake
- support
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- 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
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
-
- 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Braking Arrangements (AREA)
Abstract
The method for assembling the electric wheel of the dump truck comprises two steps of turning over the wheel-side speed reducer and assembling the traction motor and the speed reducer, and in the step of assembling the traction motor and the speed reducer, the production standardization operation is facilitated by refining the assembling process of the traction motor and the speed reducer.
Description
Technical Field
The invention relates to a method for assembling an electric wheel of a dump truck.
Background
The electric wheel assemblies of the dump truck are usually positioned at two ends of a rear axle housing and provide electric drive and power brake for the whole truck. When driving, it converts the electric energy into mechanical kinetic energy to rotate the wheels; when braking, it changes the kinetic energy of the dumper into electric energy to reduce the speed of the dumper. The electric wheel is composed of main components such as a traction motor, a speed reducer, a brake and the like. Its advantages are simple structure, high drive efficiency, heavy load and easy maintenance. Is the most main part of the prior mining dump truck with electric wheels. At present, the assembly of the electric wheel of the dump truck does not have a special operation flow, and the production standardization operation is inconvenient.
Disclosure of Invention
The invention aims to provide a dumper electric wheel assembling method which is simple, reasonable and convenient in operation process.
In order to solve the technical problem, the invention comprises the following steps:
firstly, turning over a wheel reduction gear:
placing the hub reduction gear on a supporting tool from the horizontal direction, turning over the hub reduction gear to vertically place the hub reduction gear on the supporting tool: fixing a lifting appliance at a lifting point of the wheel-side speed reducer, and vertically placing the wheel-side speed reducer on a supporting tool through the lifting appliance under the action of a crown block;
secondly, assembling the traction motor and the speed reducer:
A. heating the spline housing, sleeving the spline housing into the bottom of the external spline of the motor spindle after the spline housing expands, and then cooling;
B. the O-shaped sealing ring is arranged in a sealing groove of the end face of the traction motor, the sealing ring is ensured to be completely arranged in the sealing groove, the sealing ring cannot be distorted, and then the sun wheel protective cover is arranged on the end face of the traction motor, so that the protective cover is ensured to be tightly attached to the end face of the traction motor;
C. cleaning impurities and oil stains in a main shaft spline of the traction motor, and vertically hoisting the traction motor by using a hoisting tool and a crown block;
D. slowly inserting a traction motor into a vertically arranged wheel reduction gear through a crown block, so that a flange surface of the traction motor is tightly attached to a surface of the wheel reduction gear, and slightly rotating the traction motor in the descending process of the traction motor, so that a traction motor protective cover can be inserted into a protective cover slot hole reserved in the wheel reduction gear;
E. fixing a brake disc on a flange plate of a traction motor in a bolt connection mode, mounting a plurality of brake supports around the flange plate of the traction motor, mounting a service brake on one brake support, and mounting a parking brake on one brake support;
F. the traction motor and the hub reduction gear are horizontally placed through the crown block, the sun wheel end cover of the hub reduction gear is disassembled, the sun wheel of the hub reduction gear is horizontally inserted into the spline sleeve of the traction motor, and then the sun wheel end cover is installed at the rear part of the hub reduction gear.
As a further improvement of the present invention, in step one: the hoisting point of the wheel-side speed reducer is selected from the upper end position of the flange surface in the front of the wheel-side speed reducer and the lower end position of the tail of the wheel-side speed reducer.
As a further improvement of the present invention, in step two, step a: heating the spline sleeve to 180 +/-10 ℃, applying a certain axial force to the spline sleeve in the cooling process and keeping for 5min to ensure that the spline sleeve cannot slip out.
As a further improvement of the present invention, in step B of step two: the sun gear protective cover is installed on the end face of the traction motor through 8M 10x40 bolts of a hub reduction gear, and the bolt tightening torque is 66 N.m.
As a further improvement of the present invention, in step E of step two: the brake support comprises a service brake support and a parking brake support, the parking brake support is placed in the 6 o ' clock direction of a flange plate of a traction motor, the service brake support is placed in the 3 o ' clock direction and the 9 o ' clock direction of the flange plate of the traction motor, a service brake is installed on the service brake support, a clearance between a friction plate and a brake disc of the service brake is measured by using a feeler gauge, an adjusting gasket carried by the service brake is placed between the service brake and the service brake support to ensure that the distance between the upper friction plate and the lower friction plate of the service brake and the brake disc is 0.254mm, the parking brake support comprises a first support, a second support and a third support which are arranged from top to bottom, the upper half part of the parking brake is fixed on the first support, the lower half part of the parking brake is fixed on the third support, the adjusting gasket of the parking brake is placed, and the distance difference between the upper friction surface and the lower friction surface of the parking brake and the brake disc is adjusted to be 0.254mm between the upper half part of the parking brake and the first bracket.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a position diagram of a hoisting point of a wheel reduction gear in the present invention.
Fig. 2 is an assembly view of the wheel reduction unit and the traction motor according to the present invention.
Fig. 3 is a structural view of a traction motor of the present invention.
FIG. 4 is an assembled view of the wheel reduction unit and traction motor of the present invention from another perspective.
Detailed Description
As shown in fig. 1 to 4, the present invention includes the following steps:
firstly, turning over a hub reduction gear 1:
placing the hub reduction gear 1 on a supporting tool from the horizontal direction, turning over the hub reduction gear to vertically place the hub reduction gear on the supporting tool: fixing a lifting appliance at a lifting point of the wheel-side speed reducer 1, selecting the upper end position of a flange surface at the front part of the wheel-side speed reducer 1 and the lower end position of the tail part of the wheel-side speed reducer 1 at the lifting point of the wheel-side speed reducer 1, and vertically placing the wheel-side speed reducer 1 on a supporting tool through the lifting appliance under the action of a crown block;
secondly, assembling the traction motor 3 and a speed reducer:
A. heating the spline housing 2 to 180 +/-10 ℃, sleeving the spline housing 2 into the bottom of the external spline of the motor spindle after the spline housing 2 expands, then cooling, applying a certain axial force to the spline housing 2 in the cooling process, and keeping for 5min to ensure that the spline housing 2 cannot slip out;
B. the O-shaped sealing ring is arranged in a sealing groove of the end face of the traction motor 3, the sealing ring is completely arranged in the sealing groove and cannot be twisted, then the sun gear protective cover is arranged on the end face of the traction motor 3 through 8M 10x40 bolts carried by the hub reduction gear 1, the bolt tightening torque is 66N.m, and the protective cover is ensured to be tightly attached to the end face of the traction motor 3;
C. cleaning impurities and oil stains in a main shaft spline of the traction motor 3, and vertically hoisting the traction motor 3 by using a hoisting tool and a crown block;
D. slowly inserting a traction motor 3 into a vertically arranged hub reduction gear 1 through a crown block, so that a flange surface of the traction motor 3 is tightly attached to the surface of the hub reduction gear 1, slightly rotating the traction motor 3 in the descending process of the traction motor 3, and inserting a protective cover of the traction motor 3 into a protective cover slot hole reserved in the hub reduction gear 1;
E. fixing a brake disc 4 on a flange of a traction motor 3 in a bolt connection mode, installing a parking brake bracket 5 at 6 o ' clock direction of the flange of the traction motor 3, installing service brake brackets 6 at 3 o ' clock and 9 o ' clock directions of the flange of the traction motor 3, installing a service brake 7 on the service brake brackets 6, measuring a gap between a friction plate of the service brake 7 and the brake disc 4 by using a feeler gauge, placing an adjusting gasket of the service brake 7 between the service brake 7 and the service brake brackets 6, ensuring that the distance between upper and lower friction plates of the service brake 7 and the brake disc 4 is 0.254mm, wherein the parking brake bracket 5 comprises a first bracket, a second bracket and a third bracket which are arranged from top to bottom, fixing the upper half part of the parking brake on the first bracket, fixing the lower half part of the parking brake on the third bracket, placing a parking brake adjusting gasket between the lower half part of the parking brake and the third support and between the upper half part of the parking brake and the first support, and adjusting the distance difference between the upper and lower friction surfaces of the parking brake and the brake disc 4 to be 0.254 mm;
F. the traction motor 3 and the hub reduction gear 1 are horizontally placed through the crown block, the sun gear end cover 8 of the hub reduction gear 1 is disassembled, the sun gear 9 of the hub reduction gear 1 is horizontally inserted into the spline housing 2 of the traction motor 3, and then the sun gear end cover 8 is installed at the rear part of the hub reduction gear 1.
Claims (5)
1. A method for assembling an electric wheel of a dump truck is characterized by comprising the following steps:
firstly, turning over a wheel reduction gear:
placing the hub reduction gear on a supporting tool from the horizontal direction, turning over the hub reduction gear to vertically place the hub reduction gear on the supporting tool: fixing a lifting appliance at a lifting point of the wheel-side speed reducer, and vertically placing the wheel-side speed reducer on a supporting tool through the lifting appliance under the action of a crown block;
secondly, assembling the traction motor and the speed reducer:
A. heating the spline housing, sleeving the spline housing into the bottom of the external spline of the motor spindle after the spline housing expands, and then cooling;
B. the O-shaped sealing ring is arranged in a sealing groove of the end face of the traction motor, the sealing ring is ensured to be completely arranged in the sealing groove, the sealing ring cannot be distorted, and then the sun wheel protective cover is arranged on the end face of the traction motor, so that the protective cover is ensured to be tightly attached to the end face of the traction motor;
C. cleaning impurities and oil stains in a main shaft spline of the traction motor, and vertically hoisting the traction motor by using a hoisting tool and a crown block;
D. slowly inserting a traction motor into a vertically arranged wheel reduction gear through a crown block, so that a flange surface of the traction motor is tightly attached to a surface of the wheel reduction gear, and slightly rotating the traction motor in the descending process of the traction motor, so that a traction motor protective cover can be inserted into a protective cover slot hole reserved in the wheel reduction gear;
E. fixing a brake disc on a flange plate of a traction motor in a bolt connection mode, mounting a plurality of brake supports around the flange plate of the traction motor, mounting a service brake on one brake support, and mounting a parking brake on one brake support;
F. the traction motor and the hub reduction gear are horizontally placed through the crown block, the sun wheel end cover of the hub reduction gear is disassembled, the sun wheel of the hub reduction gear is horizontally inserted into the spline sleeve of the traction motor, and then the sun wheel end cover is installed at the rear part of the hub reduction gear.
2. The dump truck electric wheel assembling method according to claim 1, characterized in that: in the first step: the hoisting point of the wheel-side speed reducer is selected from the upper end position of the flange surface in the front of the wheel-side speed reducer and the lower end position of the tail of the wheel-side speed reducer.
3. The dump truck electric wheel assembling method according to claim 1, characterized in that: in step two, step A: heating the spline sleeve to 180 +/-10 ℃, applying a certain axial force to the spline sleeve in the cooling process and keeping for 5min to ensure that the spline sleeve cannot slip out.
4. The dump truck electric wheel assembling method according to claim 1, characterized in that: in step B: the sun gear protective cover is installed on the end face of the traction motor through 8M 10x40 bolts of a hub reduction gear, and the bolt tightening torque is 66 N.m.
5. The dump truck electric wheel assembling method according to claim 1, characterized in that: in step two, E: the brake support comprises a service brake support and a parking brake support, the parking brake support is placed in the 6 o ' clock direction of a flange plate of a traction motor, the service brake support is placed in the 3 o ' clock direction and the 9 o ' clock direction of the flange plate of the traction motor, a service brake is installed on the service brake support, a clearance between a friction plate and a brake disc of the service brake is measured by using a feeler gauge, an adjusting gasket carried by the service brake is placed between the service brake and the service brake support to ensure that the distance between the upper friction plate and the lower friction plate of the service brake and the brake disc is 0.254mm, the parking brake support comprises a first support, a second support and a third support which are arranged from top to bottom, the upper half part of the parking brake is fixed on the first support, the lower half part of the parking brake is fixed on the third support, the adjusting gasket of the parking brake is placed, and the distance difference between the upper friction surface and the lower friction surface of the parking brake and the brake disc is adjusted to be 0.254mm between the upper half part of the parking brake and the first bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810415875.6A CN108656939B (en) | 2018-05-03 | 2018-05-03 | Method for assembling electric wheels of dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810415875.6A CN108656939B (en) | 2018-05-03 | 2018-05-03 | Method for assembling electric wheels of dump truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108656939A CN108656939A (en) | 2018-10-16 |
| CN108656939B true CN108656939B (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810415875.6A Active CN108656939B (en) | 2018-05-03 | 2018-05-03 | Method for assembling electric wheels of dump truck |
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| Country | Link |
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| CN (1) | CN108656939B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015008702A1 (en) * | 2013-07-17 | 2015-01-22 | Ntn株式会社 | In-wheel motor driving device |
| CN204366315U (en) * | 2014-12-10 | 2015-06-03 | 广州电力机车有限公司 | A kind of electric power wheel self-discharging vehicle front frame assembling mounting tool |
| CN105345444A (en) * | 2015-12-02 | 2016-02-24 | 广州电力机车有限公司 | Electric wheel assembly tool and assembly method |
| JP2017024655A (en) * | 2015-07-27 | 2017-02-02 | Ntn株式会社 | In-wheel motor drive device |
| CN106704554A (en) * | 2016-12-30 | 2017-05-24 | 中国煤炭科工集团太原研究院有限公司 | Through shaft tapered-tooth planet wheel side reducer with brake |
| CN206317692U (en) * | 2016-07-05 | 2017-07-11 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of electric motor car transmission and braking integration arrangement |
| CN107206907A (en) * | 2014-11-24 | 2017-09-26 | 极步公司 | The apparatus and method of wheel for motor vehicle |
-
2018
- 2018-05-03 CN CN201810415875.6A patent/CN108656939B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015008702A1 (en) * | 2013-07-17 | 2015-01-22 | Ntn株式会社 | In-wheel motor driving device |
| CN107206907A (en) * | 2014-11-24 | 2017-09-26 | 极步公司 | The apparatus and method of wheel for motor vehicle |
| CN204366315U (en) * | 2014-12-10 | 2015-06-03 | 广州电力机车有限公司 | A kind of electric power wheel self-discharging vehicle front frame assembling mounting tool |
| JP2017024655A (en) * | 2015-07-27 | 2017-02-02 | Ntn株式会社 | In-wheel motor drive device |
| CN105345444A (en) * | 2015-12-02 | 2016-02-24 | 广州电力机车有限公司 | Electric wheel assembly tool and assembly method |
| CN206317692U (en) * | 2016-07-05 | 2017-07-11 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of electric motor car transmission and braking integration arrangement |
| CN106704554A (en) * | 2016-12-30 | 2017-05-24 | 中国煤炭科工集团太原研究院有限公司 | Through shaft tapered-tooth planet wheel side reducer with brake |
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| Publication number | Publication date |
|---|---|
| CN108656939A (en) | 2018-10-16 |
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