CN106289761B - The vertical reduction gearbox fatigue experimental device of warehousing forklift - Google Patents
The vertical reduction gearbox fatigue experimental device of warehousing forklift Download PDFInfo
- Publication number
- CN106289761B CN106289761B CN201610665413.0A CN201610665413A CN106289761B CN 106289761 B CN106289761 B CN 106289761B CN 201610665413 A CN201610665413 A CN 201610665413A CN 106289761 B CN106289761 B CN 106289761B
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- reduction gearbox
- shaft
- balladeur train
- torque
- bearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention relates to the vertical reduction gearbox fatigue experimental devices of warehousing forklift, including reduction gearbox, platen, and the magnetic powder brake, sensor stand, bearing bracket and the column balladeur train assembly that are successively set on platen；Torque and speed sensors are housed on the sensor stand, at least one rolling bearing units is housed on the bearing bracket, the rolling bearing units are provided with splined shaft, one end of the splined shaft is connect by shaft coupling with torque and speed sensors, the other end of splined shaft is equipped with internal splined hole, it is fitted with external splines in the internal splined hole, the flange matched with reduction gearbox output end is connected on the external splines, institute's magnetic powder brake is connect by shaft coupling with torque and speed sensors；The present invention improves the accuracy of test result so that the operating condition of test of reduction gearbox and actual condition more coincide using the test method of two kinds of load of simulation.
Description
Technical field
The present invention relates to fork truck field, the fatigue experimental device of especially a kind of vertical reduction gearbox of warehousing forklift.
Background technique
Warehousing forklift reduction gearbox is vertical installation on vehicle, and the input terminal of reduction gearbox is connect with travel driving motor, defeated
Outlet is equipped with tire.It when travel driving motor operates, is rotated by reduction gearbox deceleration tire, i.e. the walking of driving vehicle.It should
Reduction gearbox is primarily subjected to two kinds of load in vehicle, first is that the part of vehicle acts on reduction gearbox from heavy load on vertical direction,
And the load becomes with working condition (such as unloaded level land traveling is fully loaded with level land traveling, the fully loaded climbing traveling) difference of vehicle
Change；Second is that the output loads of reduction gearbox are equally different with the working condition of vehicle and change.It is directed to the rack of the reduction gearbox at present
Test is to simulate one of load to be tested, and be mainly used for delivery test mostly.It is such as carried out using existing device tired
Labor test then has the disadvantage in that 1, is only capable of simulating one of load and carries out fatigue test, the accuracy of test result compared with
It is low.2, for newly developed reduction gearbox, load suffered by actual condition cannot be simulated, causes Durability Test completely sudden and violent
Expose the weak spot of design.3, the reduction gearbox quality problems fed back after sale are difficult to carry out recurrence of failure by bench test.
Summary of the invention
The purpose of the present invention is to provide a kind of fatigue experimental devices of the vertical reduction gearbox of warehousing forklift, can real simulation storehouse
The actual condition of the vertical reduction gearbox of fork truck is stored up to carry out fatigue detecting.
To solve the above problems, the invention adopts the following technical scheme:
The vertical reduction gearbox fatigue experimental device of warehousing forklift, including reduction gearbox, platen, and be successively set on platen
Magnetic powder brake, sensor stand, bearing bracket and column balladeur train assembly；It is passed on the sensor stand equipped with rotational speed and torque
Sensor, at least one rolling bearing units is equipped on the bearing bracket, and the rolling bearing units are provided with splined shaft, the splined shaft
One end connect with torque and speed sensors by shaft coupling, the other end of splined shaft is equipped with internal splined hole, the internal splined hole
It is inside fitted with external splines, the flange matched with reduction gearbox output end is connected on the external splines, institute's magnetic powder brake passes through
Shaft coupling is connect with torque and speed sensors；
The column balladeur train assembly is equipped with the balladeur train for driving by oil cylinder and moving up and down along the vertical direction, the balladeur train
On be fixed with bracket assembly, motor is housed, the motor shaft of the motor is directed toward platen along the vertical direction, institute on the bracket assembly
The lower end for stating motor shaft is connected with axle sleeve, axle sleeve flange, universal joint, connector sleeve flange, connector sleeve and input in turn from top to bottom
Axis, the input shaft are connected by the input terminal of bearing flange and reduction gearbox.
Further, the column balladeur train assembly includes upright post base, is arranged on upright post base in three of triangle arrangement
Guide post, and the crossbeam of three guide post upper ends of connection；It is fixed with cylinder support on the crossbeam, passes through pin in the cylinder support
Axis is fixed with oil cylinder, and the tailpiece of the piston rod of the oil cylinder is directed toward platen along the vertical direction, and passes in piston rod end equipped with pressure
Sensor, the pull pressure sensor are fixedly connected by connecting plate with balladeur train, and corresponding three guide post positions are equipped on the balladeur train
Three bearings matched with guide post external cylindrical surface, the balladeur train are flexibly connected by bearing with guide post.
Further, the bracket assembly includes chassis and the electric machine support that is fixed on chassis, the base surface of the chassis
It is equipped with the limit hole matched with bearing flange.
Further, the axle sleeve is flexibly connected with input shaft, and the top of the input shaft is fixed with for limiting to axle sleeve
Retaining ring.
The beneficial effects of the present invention are: the present invention can be in applying vertical load to reduction gearbox on a test platen simultaneously
With output loaded load, the operating condition of the reduction gearbox under the driving status such as unloaded level land, fully loaded level land, fully loaded climbing is simulated, is passed through
Torque and speed sensors detect the load torque of the output revolving speed and magnetic powder brake of reduction gearbox, are detected by pull pressure sensor
The vertical magnitude of load that oil cylinder applies reduction gearbox, to carry out the fatigue test of reduction gearbox；The present invention is using two kinds of simulation
The test method of load improves the accuracy of test result so that the operating condition of test of reduction gearbox and actual condition more coincide；
For newly developed reduction gearbox, using test method of the invention, can faster carrying out verification experimental verification, (bench test can connect
It is continuous to carry out for 24 hours), and the weak spot in design can be completely revealed；It can be simultaneously for the reduction gearbox quality problems of site feedback
Device through the invention carries out bench test at any time and carries out recurrence of failure, efficiently convenient.
Detailed description of the invention
A specific embodiment of the invention is described further with reference to the accompanying drawing, in which:
Fig. 1 is front axis side view of the invention；
Fig. 2 is back side axis side view of the invention；
Fig. 3 is main view of the invention；
Fig. 4 is left view of the invention；
Fig. 5 is top view of the invention；
Fig. 6 is the main view of column balladeur train assembly；
Fig. 7 is the left part cross-sectional view of column balladeur train assembly；
Fig. 8 is the axis side view of column balladeur train assembly；
Fig. 9 is the partial sectional view of reduction gearbox and portion support assembly；
Figure 10 is the axis side view of reduction gearbox and portion support assembly.
Specific embodiment
Referring to attached drawing 1 to the vertical reduction gearbox fatigue experimental device of warehousing forklift shown in fig. 5, including platen 1, and successively
Magnetic powder brake 12, sensor stand 9, bearing bracket 6 and column balladeur train assembly 22 on platen 1 are set.Magnetic powders brake
Device 12 and sensor stand 9 are installed on pedestal 13, guarantee each section in same level height.
Torque and speed sensors 10 are housed, there are two axis of usheing to seat for dress on the bearing bracket 6 on the sensor stand 9
7 are held, the rolling bearing units 7 are provided with splined shaft 5, and one end of the splined shaft 5 passes through shaft coupling 8 and torque and speed sensors 10
Connection, the other end of splined shaft 5 is machined with internal splined hole, is fitted with external splines 4 in the internal splined hole, and external splines 4 can be along
Splined hole axial movement, the other end of the external splines 4 are connected with the flange 3 matched with 2 output end of reduction gearbox, magnetic powder system
Dynamic device 12 is connect by shaft coupling 11 with torque and speed sensors 10.
Referring to shown in Fig. 6 to Fig. 8,22 assembly of column balladeur train includes upright post base 36, is arranged on upright post base 36
In three guide posts 32 that triangle is arranged, and pass through baffle 27 and the crossbeam 28 for being bolted three 32 upper ends of guide post.
It is fixed with cylinder support 29 on the crossbeam 28, passes through pin shaft 30 in the cylinder support 29 and is fixed with oil cylinder 31,
The tailpiece of the piston rod of the oil cylinder 31 is directed toward platen along the vertical direction, and has been connected through a screw thread pressure sensing in piston rod end
Device 33, the pull pressure sensor 33 are fixedly connected by connecting plate 34 with balladeur train 35, corresponding three guide posts on the balladeur train 35
32 positions are set there are three the bearing 37 matched with 32 external cylindrical surface of guide post, and the balladeur train 35 passes through 32 activity of bearing 37 and guide post
Connection, and then can be acted with the piston rod of oil cylinder 31 and balladeur train 35 is driven to move up and down along guide post 32.
It is fixed with bracket assembly on the balladeur train 35, shown bracket assembly includes chassis 14 and the electricity that is fixed on chassis 14
Machine support 24, carrying is fixed with motor 23 on electric machine support 24, and the motor shaft of the motor 23 is directed toward platen 1 along the vertical direction,
The lower end of the motor shaft is equipped with axle sleeve 21, and axle sleeve flange 20 is fixed on axle sleeve 21,19 upper end of universal joint and axle sleeve flange 20
Connection, the lower end of universal joint 19 are connect with connector sleeve flange 18, and connector sleeve flange 18 is mounted on connector sleeve 17.
Referring to shown in Fig. 9 and Figure 10, shown connector sleeve 17 is sleeved on input shaft 25, and connector sleeve 17 and input shaft 25 are living
Dynamic connection, can move up and down a certain distance along input shaft 25, upward to its by the retaining ring 26 for being fixed on 25 top of input shaft
Mobile position is limited.
Input shaft 25 is designed and produced according to the motor shaft that reduction gearbox 2 is equipped with, while utilizing the motor on reduction gearbox 2
Location hole, designs and produces bearing flange 16, and input shaft 25 is connect by bearing flange 16 with the bearing that reduction gearbox 2 carries.It is described
The base surface 15 of chassis 14 is equipped with the limit hole matched with bearing flange 16, and limit hole determines the position of bearing flange 16.
The upper end of reduction gearbox 2 is bolted on the floor board 15 of chassis 14, and the output end of reduction gearbox 2 is dismantled institute
Mounting flange 3 after the tire of dress, flange 3 are connect with external splines 4, to form " a motor+gearbox+rotational speed and torque sensing
The transmission chain of device+magnetic powder brake ".
Test process of the invention is as follows: reduction gearbox 2 to be tested is installed by above-mentioned connection type, when motor 23 drives
When reduction gearbox 2 operates, while oil cylinder 31 squeezes into pressure oil and pressure maintaining, i.e., applies the load of a vertical direction, simulation to reduction gearbox 2
The vehicle vertical load that vehicle applies reduction gearbox 2 under the driving status such as unloaded level land, fully loaded level land, fully loaded climbing.
The current value for controlling magnetic powder brake 12 simultaneously, makes magnetic powder brake 12 to the load torque value of reduction gearbox 2 and this
When the fork truck driving status simulated of oil cylinder 31 it is consistent, i.e., oil cylinder 31 applies unloaded level land, fully loaded level land, fully loaded to reduction gearbox 2
When the vertical load of driving status such as climbing, magnetic powder brake 12 applies unloaded level land to reduction gearbox 2 simultaneously, is fully loaded with level land, full
Carry the output loaded load of the driving status such as climbing.
The duration of runs and the sequence of various driving status are set, to carry out the fatigue test to reduction gearbox 2.Wherein, turn
Fast torque sensor 10 is used to detect the output revolving speed of reduction gearbox 2 and magnetic powder brake 12 loads torque.Pull pressure sensor 33
The vertical magnitude of load that reduction gearbox 2 is applied for detecting oil cylinder 31.
The above, preferable specific embodiment only of the invention, but the scope of the present invention is not limited thereto, and it is any
Within the technical scope of the present disclosure, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore the scope of the present invention is subject to the scope of protection of the claims.
Claims (4)
1. the vertical reduction gearbox fatigue experimental device of warehousing forklift, including reduction gearbox, which is characterized in that further include platen, Yi Jiyi
The secondary magnetic powder brake being arranged on platen, sensor stand, bearing bracket and column balladeur train assembly；The sensor stand
It is upper that torque and speed sensors are housed, at least one rolling bearing units is housed on the bearing bracket, the rolling bearing units are provided with
One end of splined shaft, the splined shaft is connect by shaft coupling with torque and speed sensors, and the other end of splined shaft is equipped with interior flower
Keyhole is fitted with external splines in the internal splined hole, the flange matched with reduction gearbox output end is connected on the external splines,
The magnetic powder brake is connect by shaft coupling with torque and speed sensors；The column balladeur train assembly is equipped with to be driven by oil cylinder
Balladeur train that is dynamic and moving up and down along the vertical direction is fixed with bracket assembly on the balladeur train, motor is housed on the bracket assembly,
The motor shaft of the motor is directed toward platen along the vertical direction, and the lower end of the motor shaft is connected with axle sleeve, axis in turn from top to bottom
Flange, universal joint, connector sleeve flange, connector sleeve and input shaft are covered, the input shaft passes through the input of bearing flange and reduction gearbox
End connection.
2. the vertical reduction gearbox fatigue experimental device of warehousing forklift according to claim 1, which is characterized in that the column is sliding
Frame assembly includes upright post base, is arranged on upright post base in three guide posts of triangle arrangement, and three guide post upper ends of connection
Crossbeam；Cylinder support is fixed on the crossbeam, the cylinder support is interior to be fixed with oil cylinder, the work of the oil cylinder by pin shaft
Platen is directed toward at stopper rod end along the vertical direction, and pull pressure sensor is housed in piston rod end, and the pull pressure sensor passes through
Connecting plate is fixedly connected with balladeur train, and corresponding three guide post positions set that there are three match with guide post external cylindrical surface on the balladeur train
Bearing, the balladeur train are flexibly connected by bearing with guide post.
3. the vertical reduction gearbox fatigue experimental device of warehousing forklift according to claim 1, which is characterized in that the bracket is total
At the electric machine support for including chassis and being fixed on chassis, the base surface of the chassis is equipped with the limit matched with bearing flange
Position hole.
4. the vertical reduction gearbox fatigue experimental device of warehousing forklift according to claim 1, which is characterized in that the axle sleeve with
Input shaft is flexibly connected, and the top of the input shaft is fixed with the retaining ring for limiting to axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610665413.0A CN106289761B (en) | 2016-08-13 | 2016-08-13 | The vertical reduction gearbox fatigue experimental device of warehousing forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610665413.0A CN106289761B (en) | 2016-08-13 | 2016-08-13 | The vertical reduction gearbox fatigue experimental device of warehousing forklift |
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| CN106289761A CN106289761A (en) | 2017-01-04 |
| CN106289761B true CN106289761B (en) | 2018-12-18 |
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| CN201610665413.0A Active CN106289761B (en) | 2016-08-13 | 2016-08-13 | The vertical reduction gearbox fatigue experimental device of warehousing forklift |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444735A (en) * | 2018-05-23 | 2018-08-24 | 柳州上汽汽车变速器有限公司 | Automotive transmission assembly fatigue life test stand |
| CN109484896A (en) * | 2019-01-14 | 2019-03-19 | 陕西誉邦科技股份有限公司 | A kind of simple winding mechanism of disassembly |
| CN109946070B (en) * | 2019-03-08 | 2023-10-24 | 天津大学 | High-precision comprehensive performance detector of precision speed reducer for robot |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101391412B1 (en) * | 2012-09-14 | 2014-05-27 | 우림기계(주) | Device for testing planitary gear box |
| CN103115771B (en) * | 2013-01-22 | 2015-09-02 | 索特传动设备有限公司 | A kind of reductor test unit and reductor production line |
| CN103149028B (en) * | 2013-03-18 | 2016-02-10 | 索特传动设备有限公司 | A kind of reductor proving installation |
| CN104568426B (en) * | 2014-07-08 | 2017-10-03 | 东莞市鑫拓智能机械科技有限公司 | A kind of harmonic speed reducer dynamic performance integrated test system |
| CN203962961U (en) * | 2014-07-21 | 2014-11-26 | 大冶特殊钢股份有限公司 | Oil-filling device |
| CN205449496U (en) * | 2016-03-29 | 2016-08-10 | 江苏泰隆减速机股份有限公司 | Vertical cycloidal -pin gear speed reducer loading testing arrangement |
| CN205910006U (en) * | 2016-08-13 | 2017-01-25 | 安徽合力股份有限公司 | Vertical reducing gear box fatigue test device of storage fork truck |
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