CN105841975A - Pneumatic type mechanical differential lock functional rack test device - Google Patents
Pneumatic type mechanical differential lock functional rack test device Download PDFInfo
- Publication number
- CN105841975A CN105841975A CN201610279883.3A CN201610279883A CN105841975A CN 105841975 A CN105841975 A CN 105841975A CN 201610279883 A CN201610279883 A CN 201610279883A CN 105841975 A CN105841975 A CN 105841975A
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- CN
- China
- Prior art keywords
- flywheel
- location
- differential lock
- test device
- inertial flywheel
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- 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.)
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Classifications
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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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Abstract
The invention relates to a pneumatic type mechanical differential lock functional rack test device. The test device is characterized by comprising a variable frequency motor, a slave axle assembly, an inertia flywheel assembly, a positioning support mechanism and an air source. The variable frequency motor is connected with a subject differential lock mounted in the slave axle assembly through an input shaft. The air source is connected with a housing of the subject differential lock through an air pipe. The air pipe is provided with a reversing valve and a pressure adjusting valve. An output transmission shaft of the slave axle assembly is connected with a flywheel spindle of the inertia flywheel assembly through a transition flange while the other end of the slave axle assembly is suspended. The slave axle assembly is fixed between a support board and a pressing board of the positioning support mechanism. The test device has advantages of simple structure and reasonable design and product development is reduced.
Description
Technical field
The present invention relates to a kind of pneumatic type mechanical differential lock function bench test device, belong to auto parts and components experimental rig technology neck
Territory.
Background technology
Pneumatic type mechanical differential lock is as an important configuration of drive axle, and in being widely used in, back axle and part front driving axle work as
In, its operation principle is to be engaged and disengagement by what cylinder air pressure controlled with spring that sliding gear collar overlaps with fixing tooth.Normal conditions
Under, when car load passes through the road surface that left and right sides wheel coefficient of road adhesion differs bigger, use differential lock to promote the driving of car load
Power.In order to verify the reliability of differential lock, need to consider, its dynamic characteristic such as release capability and Locking property formally
Entrucking carries out before real vehicle uses test and product puts into serial production rear quality control procedure, is required to the functional stand carrying out being correlated with
Test.For the special construction of pneumatic type mechanical differential lock, through technical investigation and detailed search, currently without for this structure
The device of function test.
Summary of the invention
It is an object of the invention to provide a kind of pneumatic type mechanical differential function bench test device, there is simple in construction, reasonable in design
Advantage, reduce product development cost.
The purpose of the present invention is achieved through the following technical solutions:
A kind of pneumatic type mechanical differential lock function bench test device, it is characterised in that: include variable-frequency motor 1, slave axle
Assembly 5, inertial flywheel assembly 37, supporting mechanism for location 38 and source of the gas 23；Described variable-frequency motor 1 by power shaft 2 with
The tested differential lock 4 being arranged in slave axle assembly 5 connects；Described source of the gas 23 is by tracheae 22 and tested differential lock
4 housings connect, and described tracheae 22 is provided with reversal valve 20 and pressure regulator valve 21；Described slave axle assembly 5 defeated
Going out power transmission shaft 6 to be connected with the flywheel head shaft 32 of inertial flywheel assembly 37 by counter flange 30, the other end is unsettled；Described
Slave axle assembly 5 is fixed on supporting mechanism for location and arranges between the gripper shoe 17 of 38 and pressing plate 3.
Described inertial flywheel assembly 37 includes flywheel head shaft 32, left side guide rail bearing 10 and right side guide rail bearing
16；Described flywheel head shaft 32 two ends are separately fixed in the support seat supported by support, and flywheel head shaft 32 is equipped with can edge
The first inertial flywheel 7 and the second inertial flywheel 8 that flywheel head shaft moves axially, the first inertial flywheel 7 and the second inertial flywheel 8
Between flywheel head shaft 32 on the fixing flywheel being nested with fix the shaft shoulder 33；Two side end faces of the shaft shoulder 33 fixed by described flywheel
On offer the positioning spiro pit 34 matched with the hole on inertial flywheel；Described left side guide rail bearing 10 and right side are led
On track bearing 16, it is provided with guide rail 14, in described guide rail 14, is provided with guide runner 11, described
Being fixed with flywheel by L-type fixed plate 15 on guide runner 11 and adjust arm 9, the both sides of described inertial flywheel are provided with and fly
Wheel adjusts arm 9.
Further, described supporting mechanism for location 38 includes gripper shoe 17, pressing plate 3 and arranged in parallel two location
Propping up support component 39, the location support seat 25 that support component 39 includes fixing on the ground is propped up in each location, and location supports seat 25
Two ends are fixed with location support post 19, and the upper end of location support post 19 is fixedly connected with location and supports lifting screw 29, fixed
Position supports the upper end of lifting screw 29 and is fixedly connected with gripper shoe 17, and the two ends of described gripper shoe 17 are separately fixed at two
The location of location support component 39 supports on lifting screw 29, and described pressing plate 3 is connected with gripper shoe 17 by bolt, accompanies
The housing of examination driving axis 5 is fixed in the middle of pressing plate 3 and gripper shoe 17.
Further, described location supports seat 25 upper end and has location support shifting chute 26, described location support post 19
On location support regulation bolt 27 and be fixed on location and support in shifting chute 26.
Further, described variable-frequency motor 1 is arranged on variable-frequency motor base 24.
The invention has the beneficial effects as follows:
The air admission hole of the tested differential lock of the pneumatic type mechanical differential lock function bench test device that the present invention provides connects source of the gas,
By regulation pressure, tested differential lock is disengaged the functional trial with locking to verify, determine the pressure limit of its work permit, this
Inventing the braking inertia by inertial flywheel simulation car load, the driving axis of tested differential lock side produces certain moment of resistance,
The driving axis left and right sides produces certain speed discrepancy, it is achieved the latch functions of differential lock.The present invention has simple in construction, can
By the advantage that property is high, it is achieved that consider the purpose of product function the most really, reduce product development cost, promote
Test capability.
Accompanying drawing explanation
Fig. 1 is the pneumatic type mechanical differential lock function bench test device general arrangement schematic diagram of the present invention；
Fig. 2 is the supporting mechanism for location schematic diagram in the pneumatic type mechanical differential lock function bench test device of the present invention；
Fig. 3 is the inertial flywheel component diagram in the pneumatic type mechanical differential lock function bench test device of the present invention.
In figure: 1-variable-frequency motor；2-input shaft；3-special pressing plate；The tested differential lock of 4-；5-accompanies examination axle assembly；6-exports
Power transmission shaft；7-the first inertial flywheel；8-the second inertial flywheel；9-flywheel adjusts arm；Guide rail bearing on the left of 10-；11-guides
Slide block；12-rear end bearing seat support；13-rear end bearing seat；14-guide rail；15-L type fixed plate；Guided way on the right side of 16-
Road bearing；17-Special support plate；18-locking nut；19-positions support post；20-reversal valve；21-pressure regulator valve；22-tracheae；
23-source of the gas；24-variable-frequency motor base；25-location supports seat；26-location supports shifting chute；27-location supports and adjusts bolt；
28-positions support post locking hoop；29-location supports lifting screw；30-counter flange；End bearing block before 31-；32-flywheel
Main shaft；The shaft shoulder fixed by 33-flywheel；34-flywheel positioning spiro pit；35-front end bearing bracket；36-flywheel adjusts hole, arm location；
37-inertial flywheel assembly 37；38-supporting mechanism for location.
Detailed description of the invention
Describe specific embodiments of the present invention below in conjunction with the accompanying drawings in detail.
The invention provides a kind of pneumatic type mechanical differential lock function bench test device, including variable-frequency motor 1, slave axle
Assembly 5, inertial flywheel assembly 37, supporting mechanism for location 38 and source of the gas 23, described variable-frequency motor 1 by power shaft 2 with
The tested differential lock 4 being arranged in slave axle assembly 5 connects；The power that variable-frequency motor 1 provides is passed to tested differential
Lock 4；The air admission hole of tested differential lock 4 is connected to source of the gas 23 by tracheae 22, and tracheae 22 is provided with reversal valve 20 and pressure regulation
Valve 21；Described pressure regulator valve 21 adjusting knob can with the atmospheric pressure in control piper, by under different pressures to described quilt
The disengagement of examination differential lock 4 is verified with the functional trial of locking, it may be determined that the pressure limit of its work permit, described reversal valve
20 by the commutation of intervals, makes endotracheal air pressure removal and applying, discharges pressure to tested differential lock 4 and executes
Plus-pressure, is allowed to realize disengaging and the action of locking.The take-off (propeller) shaft 6 of described slave axle assembly 5 is by transition method
Blue 30 are connected with the flywheel head shaft 32 of inertial flywheel assembly 37, and the other end is unsettled；Described slave axle assembly 5 is fixed
Arrange between the gripper shoe 17 of 38 and pressing plate 3 at supporting mechanism for location.Described slave axle assembly 5 is tested in its installation
The output of differential lock 4 side is connected with the counter flange 30 of inertial flywheel assembly via take-off (propeller) shaft 6, and the other end is unsettled.
Described inertial flywheel assembly 37 includes flywheel head shaft 32, left side guide rail bearing 10 and right side guide rail bearing
16；Described flywheel head shaft 32 two ends are separately fixed in the support seat supported by support, and flywheel head shaft 32 is equipped with can edge
The first inertial flywheel 7 and the second inertial flywheel 8 that flywheel head shaft moves axially, the first inertial flywheel 7 and the second inertial flywheel 8
Between flywheel head shaft 32 on the fixing flywheel being nested with fix the shaft shoulder 33；Two side end faces of the shaft shoulder 33 fixed by described flywheel
On offer the positioning spiro pit 34 matched with the hole on inertial flywheel；Described left side guide rail bearing 10 and right side are led
On track bearing 16, it is provided with guide rail 14, in described guide rail 14, is provided with guide runner 11, described
Being fixed with flywheel by L-type fixed plate 15 on guide runner 11 and adjust arm 9, the both sides of described inertial flywheel are provided with and fly
Wheel adjusts arm 9.
The front end of described flywheel head shaft 32 is positioned by front end bearing block 31 and is supported by front end bearing bracket 35, through front end
Bearing block counter flange 30 is connected with output shaft 6, and described flywheel is fixed the shaft shoulder 33 and will be tested required by bolt
Inertial flywheel fix, described flywheel head shaft 32 rear end is positioned by rear end bearing seat 13 and by front end bearing bracket 12
Support is fixing.
The described each inertial flywheel in inertial flywheel assembly is adjusted arms 9 by four flywheels and controls it in use and when disabling
Action.The first described inertial flywheel 7 and the second inertial flywheel 8, the two quality is different, both can apply simultaneously, it is possible to
To be used alone.When four flywheels adjustment arms 9 are fastened on the second inertial flywheel 8 simultaneously, the second inertial flywheel 8 and flywheel
Main shaft 32 separates；Mobile guide slide block 11 is near and mobile second inertial flywheel 8 fixes the shaft shoulder 33, by flying to being adjacent to flywheel
Wheel positioning spiro pit 34 bolt the second inertial flywheel 8 is integrally forming with flywheel head shaft 32, after by described four flywheels adjustment
Arm 9 bolt disengage, the second inertial flywheel 8 flywheel operates with flywheel head shaft, the first flywheel 7 and the use of the second flywheel and
Demounting procedure is identical.
Described supporting mechanism for location 38 includes gripper shoe 17, pressing plate 3 and arranged in parallel two location support components 39,
The location support seat 25 that support component 39 includes fixing on the ground is propped up in each location, and it is fixed that the two ends of location support seat 25 are fixed with
Position support post 19, the upper end of location support post 19 is supported lifting screw 29 with location and is connected by locking nut 18, fixed
Position supports the upper end of lifting screw 29 and is fixedly connected with gripper shoe 17, and the two ends of described gripper shoe 17 are separately fixed at two
The location of location support component 39 supports on lifting screw 29, and described pressing plate 3 is connected with gripper shoe 17 by bolt, accompanies
The housing of examination driving axis 5 is fixed in the middle of pressing plate 3 and gripper shoe 17.Described location supports lifting screw 29 top
Square general connecting hole position is designed, it is simple to installs with other fixtures, is connected with gripper shoe 17 above it.
Described location supports seat 25 upper end and has location support shifting chute 26, the described location on the support post 19 of location
Support regulation bolt 27 to be fixed in location support shifting chute 26.Location support post 19 can support seat 25 in location and take up an official post
Meaning regulation is to suitable mounting distance.
The course of work of the pneumatic type mechanical differential lock function bench test device that the present invention provides is as follows:
First according to the fan-out capability of tested the mated vehicle bridge of differential lock 4, the car load braking born driving axis one side is calculated
Inertia, selects to be suitable for inertial flywheel.The first inertial flywheel 7 and the second inertial flywheel 8 in described inertial flywheel assembly, two
Person's mass is different, in application process of the present invention, both can apply, it is also possible to be used alone simultaneously.When four inertial flywheels are adjusted
When whole arm 9 is fastened on the first inertial flywheel 7 simultaneously, this inertial flywheel separates with flywheel head shaft 32, when moving integrally guiding
Slide block 11, is allowed to fix the shaft shoulder 33 with flywheel and coordinates, after flywheel being fastened with bolt by the screwed hole 34 on the shaft shoulder, this
Inertial flywheel is integrally forming with flywheel head shaft 32, then described four flywheels is adjusted arms 9 and disengages, and this inertial flywheel will be with
Flywheel head shaft 32 operates together.After inertial flywheel installation, the power of variable-frequency motor 1 it is input to slave axle assembly
5, owing to tested driving axis one end is unsettled, the other end is connected with inertial flywheel assembly, and the inertia of inertial flywheel assembly flies
The braking inertia of wheel simulation car load, causes tested differential lock 4 side to produce certain moment of resistance, is passed through air pressure at tested differential lock 4
After being released, tested differential lock 4 is in disengaged condition, after ventilating again to tested differential lock 4, and the movement of tested differential lock 4
Tooth set will recover engagement, due to the existence of the moment of resistance of inertial flywheel, make the driving axis left and right sides produce certain turning
Speed difference, forces mobile tooth set with the engaging tooth fixing tooth set and does relative slip under the frictional force that the moment of resistance produces, make differential lock reach
To engagement, finally realize the latch functions of differential lock, through such process, it is achieved that checking pneumatic type mechanical differential lock
The stand checking of function.
Claims (5)
1. a pneumatic type mechanical differential lock function bench test device, it is characterised in that: include variable-frequency motor (1), accompany examination
Driving axis (5), inertial flywheel assembly (37), supporting mechanism for location (38) and source of the gas (23)；Described variable-frequency motor
(1) it is connected with the tested differential lock (4) being arranged in slave axle assembly (5) by power shaft (2)；Described gas
Source (23) is connected with tested differential lock (4) housing by tracheae (22), and described tracheae (22) is provided with reversal valve
And pressure regulator valve (21) (20)；The take-off (propeller) shaft (6) of described slave axle assembly (5) passes through counter flange (30)
Being connected with the flywheel head shaft (32) of inertial flywheel assembly (37), the other end is unsettled；Described slave axle assembly (5)
It is fixed between gripper shoe (17) and the pressing plate (3) that supporting mechanism for location arranges (38).
2. a kind of pneumatic type mechanical differential lock function bench test device as claimed in claim 1, it is characterised in that: described
Inertial flywheel assembly (37) include flywheel head shaft (32), left side guide rail bearing (10) and right side guide rail bearing
(16)；Described flywheel head shaft (32) two ends are separately fixed in the support seat supported by support, on flywheel head shaft (32)
It is equipped with the first inertial flywheel (7) and the second inertial flywheel (8), the first inertial flywheel (7) that can move axially along flywheel head shaft
With the upper fixing flywheel being nested with of flywheel head shaft (32) that second between inertial flywheel (8) fixes the shaft shoulder (33)；Described flywheel
Offer, on two side end faces of the fixing shaft shoulder (33), the positioning spiro pit (34) matched with the hole on inertial flywheel；Described
Left side guide rail bearing (10) and right side guide rail bearing (16) on be provided with guide rail (14), described
Guide runner (11) it is provided with, by L-type fixed plate (15) on described guide runner (11) in guide rail (14)
Being fixed with flywheel and adjust arm (9), the both sides of described inertial flywheel are provided with flywheel and adjust arm (9).
3. a kind of pneumatic type mechanical differential lock function bench test device as claimed in claim 1, it is characterised in that: described
Supporting mechanism for location (38) include gripper shoe (17), pressing plate (3) and arranged in parallel two location support components (39),
Location support seat (25) that support component (39) includes fixing on the ground is propped up in each location, and location supports the two ends of seat (25)
Being fixed with location support post (19), the upper end of location support post (19) is fixedly connected with location and supports lifting screw (29),
Location supports the upper end of lifting screw (29) and is fixedly connected with gripper shoe (17), and the two ends of described gripper shoe (17) are respectively
The location being fixed on two location support components (39) supports on lifting screw (29), and described pressing plate (3) passes through bolt
It is connected with gripper shoe (17).
4. a kind of pneumatic type mechanical differential lock function bench test device as claimed in claim 1, it is characterised in that: described
Location support seat (25) upper end have location support shifting chute (26), the described location on location support post (19)
Support regulation bolt (27) to be fixed in location support shifting chute (26).
5. a kind of pneumatic type mechanical differential lock function bench test device as claimed in claim 1, it is characterised in that: described
Variable-frequency motor (1) be arranged on variable-frequency motor base (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610279883.3A CN105841975B (en) | 2016-04-29 | 2016-04-29 | A kind of pneumatic type mechanical differential lock function bench test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610279883.3A CN105841975B (en) | 2016-04-29 | 2016-04-29 | A kind of pneumatic type mechanical differential lock function bench test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105841975A true CN105841975A (en) | 2016-08-10 |
| CN105841975B CN105841975B (en) | 2018-05-08 |
Family
ID=56590518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610279883.3A Active CN105841975B (en) | 2016-04-29 | 2016-04-29 | A kind of pneumatic type mechanical differential lock function bench test device |
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| Country | Link |
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| CN (1) | CN105841975B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907199A (en) * | 2019-12-31 | 2020-03-24 | 一汽解放汽车有限公司 | Impact durability test bed and bench test method for differential lock between wheels of drive axle |
| CN112924148A (en) * | 2021-02-04 | 2021-06-08 | 成都超德创机电设备有限公司 | Electromagnetic brake fatigue test device |
| CN113008480A (en) * | 2021-02-26 | 2021-06-22 | 一汽解放汽车有限公司 | Comprehensive performance test device for differential lock control mechanism |
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|---|---|---|---|---|
| JPH0242334A (en) * | 1988-08-03 | 1990-02-13 | Honda Motor Co Ltd | Method and device for inspecting operation of differential gear lock mechanism |
| CN201837522U (en) * | 2010-05-12 | 2011-05-18 | 成都成保发展股份有限公司 | Differential velocity test table of vehicle |
| CN201903446U (en) * | 2010-12-24 | 2011-07-20 | 邵春平 | Endurance test stand for automobile transmission assembly |
| US20150040654A1 (en) * | 2013-08-06 | 2015-02-12 | Soresh Khateri | Differential lock and differential testing device |
| CN205607653U (en) * | 2016-05-12 | 2016-09-28 | 王丽琴 | Bridge assembly bench test machine |
| CN205748928U (en) * | 2016-04-29 | 2016-11-30 | 中国第一汽车股份有限公司 | A kind of pneumatic type mechanical differential lock function bench test device |
-
2016
- 2016-04-29 CN CN201610279883.3A patent/CN105841975B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0242334A (en) * | 1988-08-03 | 1990-02-13 | Honda Motor Co Ltd | Method and device for inspecting operation of differential gear lock mechanism |
| CN201837522U (en) * | 2010-05-12 | 2011-05-18 | 成都成保发展股份有限公司 | Differential velocity test table of vehicle |
| CN201903446U (en) * | 2010-12-24 | 2011-07-20 | 邵春平 | Endurance test stand for automobile transmission assembly |
| US20150040654A1 (en) * | 2013-08-06 | 2015-02-12 | Soresh Khateri | Differential lock and differential testing device |
| CN205748928U (en) * | 2016-04-29 | 2016-11-30 | 中国第一汽车股份有限公司 | A kind of pneumatic type mechanical differential lock function bench test device |
| CN205607653U (en) * | 2016-05-12 | 2016-09-28 | 王丽琴 | Bridge assembly bench test machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907199A (en) * | 2019-12-31 | 2020-03-24 | 一汽解放汽车有限公司 | Impact durability test bed and bench test method for differential lock between wheels of drive axle |
| CN110907199B (en) * | 2019-12-31 | 2022-02-01 | 一汽解放汽车有限公司 | Impact durability test bed and bench test method for differential lock between wheels of drive axle |
| CN112924148A (en) * | 2021-02-04 | 2021-06-08 | 成都超德创机电设备有限公司 | Electromagnetic brake fatigue test device |
| CN112924148B (en) * | 2021-02-04 | 2023-09-26 | 成都超德创科技有限公司 | Electromagnetic brake fatigue test device |
| CN113008480A (en) * | 2021-02-26 | 2021-06-22 | 一汽解放汽车有限公司 | Comprehensive performance test device for differential lock control mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105841975B (en) | 2018-05-08 |
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