CN108645585A - A kind of cab mounting fatigue endurance test rack and its test method - Google Patents
A kind of cab mounting fatigue endurance test rack and its test method Download PDFInfo
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- CN108645585A CN108645585A CN201810600200.9A CN201810600200A CN108645585A CN 108645585 A CN108645585 A CN 108645585A CN 201810600200 A CN201810600200 A CN 201810600200A CN 108645585 A CN108645585 A CN 108645585A
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- 238000012360 testing method Methods 0.000 title claims abstract description 33
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- 230000005484 gravity Effects 0.000 claims description 48
- 230000003014 reinforcing effect Effects 0.000 claims description 31
- 239000003351 stiffener Substances 0.000 claims description 12
- 208000037656 Respiratory Sounds Diseases 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/06—Multidirectional test stands
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Abstract
A kind of cab mounting fatigue endurance test rack, it includes mainly test-bed pedestal, cab mounting pedestal, driving cab rear suspension, portal frame, removable equivalent driver's cabin, longitudinal vibrator, vertical vibrator, cabin front suspension is set, the cab mounting pedestal is bolted in the T-slot for being installed on test-bed pedestal, cabin front suspension is set to be bolted with cab mounting pedestal top respectively with the bottom of driving cab rear suspension, removable equivalent cab bottom is set with cabin front suspension respectively to be bolted with driving cab rear suspension top, portal frame is bolted in the T-slot for being installed on test-bed pedestal, it is vertical that vibrator can carry out cab mounting after being connect with portal frame and equivalent driver's cabin corresponding portion, it is longitudinal, lateral fatigue endurance test.The present invention has versatile, simple operation and other advantages.
Description
Technical field
The present invention relates to cab mounting measuring technology more particularly to a kind of cab mounting fatigue endurance test rack and
Its test method.
Background technology
As domestic level steadily improves, commercial car plays increasingly important role in terms of logistics transportation.According to
Estimation, commercial car ownership will respectively reach 0.33 and 0.47 hundred million in the year two thousand twenty and the year two thousand thirty, before the year two thousand thirty, Chinese quotient
It will quickly be improved with vehicle ownership, but have larger gap always compared to developed country.Meanwhile it is domestic at present, commercial car
There is also a certain distance for design level more developed country, thus adhere to autonomous innovation, and it is state's inside trade to break through core technology monopolization
The target with manufacture practitioner's long-term struggle is designed with vehicle.
Third level vibration insulating system of the cab mounting as commercial car, energy effective attenuation are reached from engine with road surface
The excitation of vehicle frame, enables ride comfort to significantly improve.Currently, classifying according to supporting form, cab mounting is broadly divided into
The utilization rate of semi-floating and full floating, wherein full-float cab suspension improves year by year；Classify according to elastic original paper, drives suspension
It is broadly divided into rubber pad, helical spring type and air spring type, low and middle-end commercial car is equipped with helical spring type or rubber pad
Cab mounting, middle and high end vehicle are equipped with air spring type cab mounting.Cab mounting is in designing the complete period, leading indicator
There are ride comfort, safety, fatigue endurance characteristic, wherein cab mounting fatigue endurance characteristic to refer to as the direct investigation in its service life
Mark, importance are self-evident.
Currently, main engine plants would generally judge the fatigue endurance characteristic of cab mounting, period by the way of road test
Longer, cost is very high, although this is the essential link of vehicle test, if also using this method simultaneously at design initial stage
Automobile research is not utilized to be smoothed out.In general, cab mounting spare and accessory parts producer can be driven using the method for bench test to test
The fatigue endurance characteristic for sailing room suspension, a kind of economic convenient strategy of can yet be regarded as, but at present there are still some technical problems,
As true driver's cabin obtains, difficulty is larger, and true driver's cabin cannot be directly used to the fatigue endurance test of cab mounting, need
To pass through a large amount of transformations, difficulty is larger with cost.Phase is manufactured according to parameter designings such as the quality of true driver's cabin, geometry, mechanics
The equivalent driver's cabin answered is the effective solution to solve the above problems, if but developing several model cab mountings simultaneously
When, the versatility of equivalent driver's cabin is poor.
Therefore, it is preferably and easily and effectively relevant industries for cab mounting fatigue endurance test there is an urgent need for invention versatility
Technical staff needs the problem of deeply thinking deeply.
Invention content
The technical problem to be solved by the present invention is to be directed to existing cab mounting fatigue endurance bench test versatility not
By force, a kind of easy to operate, versatile cab mounting fatigue endurance test rack and its test method are provided.
Technical solution is used by the present invention solves the above problems：A kind of cab mounting fatigue endurance test rack,
It includes mainly test-bed pedestal, cab mounting pedestal, driving cab rear suspension, portal frame, removable equivalent driver's cabin, indulges
It is set to vibrator, vertical vibrator, cabin front suspension, the cab mounting pedestal, which is bolted, is installed on test-bed
In the T-slot of pedestal, cabin front suspension is set passes through spiral shell with cab mounting pedestal top respectively with the bottom of driving cab rear suspension
It tethering and connects, removable equivalent cab bottom is set with cabin front suspension respectively to be bolted with driving cab rear suspension top,
Portal frame is bolted in the T-slot for being installed on test-bed pedestal, it is characterised in that：Vertical vibrator one end and gantry
Frame crossbeam lower reinforcing plate is bolted, and the vertical connection card slot of the other end and removable equivalent driver's cabin is connected by bolt
It connects, when vertical vibrator carries out vertical exciting by input road spectrum, the vertical fatigue endurance characteristic of cab mounting can be measured；It is longitudinal
Vibrator one end is bolted with portal frame vibrator mounting plate, the horizontal card slot of the other end and removable equivalent driver's cabin
It is bolted with longitudinal card slot, when longitudinal vibrator carries out vertical or horizontal exciting by input road spectrum, driving can be measured
The vertical or horizontal fatigue endurance characteristic of room suspension.
Preferably, above-mentioned portal frame includes mainly portal frame pedestal, gantry pillar reinforcing plate, vibrator mounting plate, dragon
Door frame top stiffener, portal frame crossbeam, portal frame crossbeam upper reinforcing plate, portal frame crossbeam lower reinforcing plate, portal frame vertical beam connect
Fishplate bar, portal frame top stiffener connecting plate, portal frame vertical beam, portal frame bottom reinforcement, above-mentioned portal frame substructure height can
It is adjusted replacement according to the height of driver's cabin.
Further, portal frame vertical beam reinforcing plate, strengthening version, portal frame crossbeam lower reinforcing plate, gantry on portal frame crossbeam
The comprehensive of top of the trellis reinforcing plate uses the every rigidity and intensity for enhancing portal frame, extraneous vibration when vibrator works to subtract
It is small.
Preferably, above-mentioned removable equivalent driver's cabin mainly include driving cab rear suspension connecting elements, back wall, tie-beam,
Front wall, ballast box, cabin front suspension set connecting elements, preceding rebound, driver's cabin center of gravity component, rear rebound, wherein driver's cabin
Rear-suspending connecting elements, back wall, tie-beam, front wall, cabin front suspension set connecting elements, preceding rebound, driver's cabin center of gravity component,
It is bolted two-by-two between each component of rebound afterwards, and for the driver's cabin of different automobile types, above-mentioned each component can carry out phase
It should replace.
Specifically, above-mentioned driver's cabin center of gravity component records true driver's cabin barycentric coodinates, and above-mentioned ballast box and tie-beam can
It is moved in the forward and backward bolt elongated slot enclosed, and the solid particle or solid block of different densities can be packed into above-mentioned ballast box, by
Removable equivalent driver's cabin parameter is adjusted in this, until equivalent driver's cabin is consistent with the center-of-mass coordinate of true driver's cabin, quality one
Cause, inertia are consistent.
Further, above-mentioned driver's cabin center of gravity component includes mainly driver's cabin center of gravity component negative, vibrator support, center of gravity
Square steel, longitudinally connected card slot, vertical connection card slot, metal center of gravity block, lateral connection card slot are adjusted, several stacked arrangements in length and breadth
Above-mentioned center of gravity adjust the bottom and top of square steel and pass through the company of welding with driver's cabin center of gravity component negative and metal center of gravity block respectively
It connects, above-mentioned vertical connection card slot, lateral connection card slot are connected with metal center of gravity block by welding manner respectively with longitudinally connected card slot
It connects, and the straight line at each connection card groove center along respective respective direction is met at a bit, i.e. the geometric center of metal center of gravity block, it is above-mentioned
Metal weight geometric center is the center of gravity of true driver's cabin.Above-mentioned damper branch support has identical with cylindrical vibrator
Diameter can effectively support vertical, horizontal vibrator, reduce abnormal shake when vibrator work.
Preferably, above-mentioned vertical vibrator or longitudinal vibrator include mainly upper junction plate, oscillating bearing, lower connecting plate,
Excitation head, wherein exciting cephalic par connect lower connecting plate and upper junction plate with lower connecting plate by several bolts being circular layout
It is connected with respective bolt by oscillating bearing, can avoid vibrator as a result, and occur Planar Mechanisms state during the work time.
Specifically, above-mentioned upper junction plate passes through bolt with vibrator mounting plate in portal frame or portal frame crossbeam lower reinforcing plate
Connection, above-mentioned vertical vibrator work independently with longitudinal vibrator, and when removable equivalent driver's cabin is along respective direction rotation nine
After ten degree, longitudinal vibrator can be used as lateral vibrator and use.
Preferably, the test method of above-mentioned cab mounting fatigue endurance includes the following steps：
(1) 1, No. 2 tie-beam and ballast box are moved, and is packed into the solid particle of appropriate corresponding density in ballast box, directly
Center of gravity, quality, rotary inertia to equivalent driver's cabin is consistent with true driver's cabin；
(2) by above-mentioned test-bed pedestal, cab mounting pedestal, the forward and backward suspension of driver's cabin, portal frame, removable etc.
Effect driver's cabin is installed in place as required；
(3) above-mentioned vertical vibrator one end is installed on above-mentioned portal frame crossbeam lower reinforcing plate by bolt, the other end is logical
Cross the vertical connection card slot that bolt is installed in removable equivalent driver's cabin；
(4) oil circuit, the circuit for connecting vibrator, the loading frequency and load of vibrator are controlled by hydraulic control system；
(5) if under minimal circulation number, there is fracture, crackle or wear extent mistake in cab mounting metalwork and elastic component
Greatly, then turn (12), otherwise, turn (6)；
(6) vertical vibrator is unloaded, above-mentioned longitudinal vibrator one end is installed on the installation of portal frame vibrator by bolt
Plate, the other end are installed on the longitudinally connected card slot in removable equivalent driver's cabin by bolt；
(7) oil circuit, the circuit for connecting vibrator, the loading frequency and load of vibrator are controlled by hydraulic control system；
(8) if under minimal circulation number, there is fracture, crackle or wear extent mistake in cab mounting metalwork and elastic component
Greatly, then turn (12), otherwise, turn (9)；
(9) connection for unloading longitudinal vibrator and longitudinally connected card slot swashs longitudinal equivalent driver's cabin rotated ninety degrees
The device that shakes is bolted with lateral connection card slot；
(10) oil circuit, the circuit for connecting vibrator, the loading frequency and load of vibrator are controlled by hydraulic control system；
(11) if under minimal circulation number, there is fracture, crackle or wear extent in cab mounting metalwork and elastic component
It is excessive, then turn (12), otherwise, and off-test, cab mounting fatigue endurance qualification；
(12) off-test, cab mounting fatigue endurance are unqualified.
Compared with the prior art, the advantages of the present invention are as follows：
1. driving cab rear suspension connecting elements, back wall, tie-beam, front wall in the present invention in removable equivalent driver's cabin,
Cabin front suspension is set to be connected by bolt two-by-two between connecting elements, preceding rebound, driver's cabin center of gravity component, each component of rear rebound
It connects, and for the driver's cabin of different automobile types, above-mentioned each component can be replaced accordingly, and connection type is simple, and versatile；
Use oscillating bearing when 2. vibrator being connect with portal frame in the present invention, can effectively avoid vibrator with it is removable
Planar Mechanisms between the equivalent driver's cabin of formula reduce abnormal shake；
3. portal frame substructure height can be adjusted replacement according to the height of driver's cabin in the present invention, and portal frame vertical beam adds
The comprehensive use of strengthening version, portal frame crossbeam lower reinforcing plate, portal frame top stiffener enhances dragon on strong plate, portal frame crossbeam
The every rigidity and intensity of door frame, extraneous vibration when vibrator works reduce.
Description of the drawings
Fig. 1 is cab mounting fatigue endurance test rack schematic diagram in the present invention, wherein 1 being test-bed pedestal, 2 being
Cab mounting pedestal, 3 be driving cab rear suspension, 4 be portal frame, 5 be removable equivalent driver's cabin, 6 be longitudinal vibrator, 7
It is that cabin front suspension is set for vertical vibrator, 8；
Fig. 2 is cab mounting schematic diagram in the present invention, wherein 3.1 be that cabin front suspension sets driver's cabin connector, 3.2 is
Cabin front suspension sets resilient support, 3.3 and sets frame connecting piece for cabin front suspension；8.1 connect for driving cab rear suspension driver's cabin
Part, 8.2 are that driving cab rear suspension flexibly supports, 8.3 be driving cab rear suspension frame connecting piece；
Fig. 3 is portal frame schematic diagram in the present invention, wherein 4.1 be portal frame pedestal, 4.2 be gantry pillar reinforcing plate,
4.3 it is vibrator mounting plate, 4.4 be portal frame top stiffener, 4.5 be portal frame crossbeam, 4.6 is to reinforce on portal frame crossbeam
Plate, 4.7 be portal frame crossbeam lower reinforcing plate, 4.8 be portal frame vertical beam connecting plate, 4.9 be portal frame top stiffener connecting plate,
4.10 it is portal frame vertical beam, 4.11 is portal frame bottom reinforcement；
Fig. 4 is removable equivalent driver's cabin schematic diagram in the present invention, wherein 5.1 be driving cab rear suspension connecting elements, 5.2
It is No. 1 tie-beam for back wall, 5.3,5.4 be No. 2 tie-beams, 5.5 be front wall, 5.6 be ballast box, 5.7 is that cabin front suspension is set
Connecting elements, 5.8 be preceding rebound, 5.9 be driver's cabin center of gravity component, 5.10 be rear rebound；
Fig. 5 is driver's cabin center of gravity component schematic diagram in the present invention, and wherein 5.9.1 is driver's cabin center of gravity component negative, 5.9.2
For vibrator support, 5.9.3 be center of gravity adjust square steel, 5.9.4 be longitudinally connected card slot, 5.9.5 be vertical connection card slot,
5.9.6 be metal center of gravity block, 5.9.7 it is lateral connection card slot；
Fig. 6 is that cabin front suspension sets connecting elements schematic diagram in the present invention, and wherein 5.7.1 is that cabin front suspension sets connection bottom
Plate, 5.7.2 are that cabin front suspension sets connecting plate, 5.7.3 is that cabin front suspension sets bolt slot；
Fig. 7 is driving cab rear suspension connecting elements schematic diagram in the present invention, and wherein 5.1.1 is that driving cab rear suspension connects bottom
Plate, 5.1.2 are driving cab rear suspension link block；
Fig. 8 is vibrator schematic diagram in the present invention, wherein 7.1 being upper junction plate, 7.2 being oscillating bearing, 7.3 being lower connection
Plate, 7.4 are excitation head.
Specific implementation mode
Below in conjunction with attached drawing 1~8, present invention is further described in detail, and a kind of cab mounting proposed by the present invention is tired
Labor endurance test rack, the specific technical solution taken are：
A kind of cab mounting fatigue endurance test rack includes mainly test-bed pedestal 1, cab mounting pedestal
2, driving cab rear suspension 8, portal frame 4, removable equivalent driver's cabin 5, longitudinal vibrator 6, vertical vibrator 7, cabin front suspension
3 are set, as described in Figure 1, cab mounting pedestal 2 is bolted in the T-slot for being installed on test-bed pedestal 1, driver's cabin
The bottom of front-suspension 3 and driving cab rear suspension 8 is bolted with 2 top of cab mounting pedestal respectively, removable equivalent
5 bottom of driver's cabin set respectively with cabin front suspension 3 and 8 top of driving cab rear suspension be bolted；Portal frame 4 passes through bolt
It is connected and installed in the T-slot of test-bed pedestal 1；7 end of vertical vibrator is bolted with portal frame, vertical exciting
7 head of device and the vertical connection card slot of removable equivalent driver's cabin 5 are bolted, when vertical vibrator 7 is by input road spectrum
When carrying out vertical exciting, the vertical fatigue endurance characteristic of cab mounting can be measured；6 end of longitudinal vibrator passes through spiral shell with portal frame
It tethering and connects, 6 head of longitudinal vibrator can be bolted with the horizontal card slot of removable equivalent driver's cabin 5 with longitudinal card slot,
When longitudinal vibrator 6 carries out vertical or horizontal exciting by input road spectrum, the vertical or horizontal fatigue of cab mounting can be measured
Wear properties.
Above-mentioned cab mounting includes that cabin front suspension sets 3 and driving cab rear suspension 8, and it includes driving that cabin front suspension, which is set main,
Sail room front-suspension driver's cabin connector 3.1, cabin front suspension sets resilient support 3.2, cabin front suspension sets frame connecting piece 3.3；
Driving cab rear suspension includes mainly driving cab rear suspension driver's cabin connector 8.1, driving cab rear suspension resilient support 8.2, drives
Room rear-suspending frame connecting piece 8.3, as shown in Figure 2.The fatigue endurance index of cab mounting refers mainly to cab mounting process
The cracking of its metal connecting piece, deformation, abrasion or the abrasion of flexible connector, aging when long-play.
Above-mentioned portal frame 4 mainly include portal frame pedestal 4.1, gantry pillar reinforcing plate 4.2, vibrator mounting plate 4.3,
Portal frame top stiffener 4.4, portal frame crossbeam 4.5, portal frame crossbeam upper reinforcing plate 4.6, portal frame crossbeam lower reinforcing plate
4.7, portal frame vertical beam connecting plate 4.8, portal frame top stiffener connecting plate 4.9, portal frame vertical beam 4.10, portal frame bottom add
Strengthening tendons 4.11, as shown in Figure 3.Above-mentioned portal frame pedestal 4.1 highly can be adjusted replacement according to the height of driver's cabin, work as longitudinal direction
Vibrator 6 is bolted when being installed on vibrator mounting plate 4.3 and being worked, and the deformation of portal frame vertical beam is larger, at this point,
Can by portal frame vertical beam reinforcing plate 4.2 improve portal frame the direction rigidity.On portal frame crossbeam 4.5 and portal frame crossbeam
Reinforcing plate 4.6 and portal frame crossbeam lower reinforcing plate 4.7 are by being welded to connect, and the upper and lower reinforcing plate width of portal frame is slightly larger than dragon
4.5 width of door frame crossbeam is not only installation portal frame vertical beam 4.10 and vertical vibrator 7, also obtains portal frame vertical stiffness
To significantly improving, reduce extraneous vibration when vertical vibrator 7 works.Portal frame crossbeam lower reinforcing plate 4.7 and portal frame vertical beam
Connecting plate 4.8 and portal frame vertical beam 4.10 are connected by screw bolts, and portal frame at the top of strengthening version 4.4 respectively under portal frame crossbeam
Reinforcing plate 4.7 is bolted with portal frame top stiffener connecting plate 4.9, further increase portal frame it is vertical with it is lateral
Rigidity, portal frame top stiffener connecting plate 4.9 are installed on 4.10 corresponding position of portal frame vertical beam by welding manner.Above-mentioned dragon
Door frame bottom reinforcement 4.11 is connect by welding manner with portal frame vertical beam 4.10, and portal frame overall stability is improved.
Above-mentioned removable equivalent driver's cabin 5 includes mainly 5.2, No. 1 driving cab rear suspension connecting elements 5.1, back wall connections
5.3, No. 2 tie-beams 5.4 of beam, front wall 5.5, ballast box 5.6, cabin front suspension are set connecting elements 5.7, preceding rebound 5.8, are driven
Room center of gravity component 5.9, rear rebound 5.10, as shown in figure 4, wherein driving cab rear suspension connecting elements 5.1, back wall No. 5.2,1 numbers
5.3, No. 2 tie-beams 5.4 of tie-beam, front wall 5.5, cabin front suspension set connecting elements 5.7, preceding rebound 5.8, driver's cabin center of gravity
It is bolted two-by-two between component 5.9,5.10 each component of rear rebound, and for the driver's cabin of different automobile types, it is above-mentioned each
Component can be replaced accordingly.Above-mentioned driver's cabin center of gravity component 5.9 records true driver's cabin barycentric coodinates, above-mentioned ballast box 5.6
It can be moved, and can be packed into above-mentioned ballast box 5.6 different close in the forward and backward bolt elongated slot 5.2.1 enclosed with 1, No. 2 tie-beam
The solid particle or solid block of degree adjust the barycenter of removable equivalent driver's cabin successively, until equivalent driver's cabin drives with true
The center-of-mass coordinate of room is consistent, uniform quality, inertia are consistent.
Above-mentioned driver's cabin center of gravity component 5.9 mainly include driver's cabin center of gravity component negative 5.9.1, vibrator support 5.9.2,
Center of gravity adjusts square steel 5.9.3, longitudinally connected card slot 5.9.4, vertical connection card slot 5.9.5, metal center of gravity block 5.9.6, laterally connects
Card slot 5.9.7 is met, as shown in figure 5, the center of gravity of several stacked arrangements in length and breadth adjusts bottom and the driver's cabin center of gravity of square steel 5.9.3
Component negative 5.9.1 is connected by welding manner, top with metal center of gravity block 5.9.6 by being welded to connect, above-mentioned metal weight
The geometric center of heart block 5.9.6 is the center of gravity of true driver's cabin, above-mentioned vertical connection card slot 5.95, lateral connection card slot
5.9.7 it is connect respectively by welding manner with metal center of gravity block 5.9.6 with longitudinally connected card slot 5.9.4, and in each connection card slot
Straight line at the heart along respective respective direction is met at a bit, i.e. the geometric center of metal center of gravity block 5.96.Above-mentioned damper support
5.9.2 top has diameter identical with cylindrical vibrator, can effectively support vertical, horizontal vibrator, reduces vibrator work
Abnormal shake when making.
Before above-mentioned cabin front suspension sets that connecting elements 5.7 is main and sets connecting bottom board 5.7.1, driver's cabin including cabin front suspension
Suspension connecting plate 5.7.2, cabin front suspension set bolt slot 5.7.3, as shown in fig. 6, cabin front suspension sets connecting bottom board 5.7.1 tables
There are several cabin front suspensions to set bolt slot 5.7.3 in face, and cabin front suspension sets connecting plate 5.7.2 and sets spiral shell by cabin front suspension
It sets and connect with cabin front suspension after croze 5.7.3 connections.
Above-mentioned driving cab rear suspension connecting elements 5.1 includes mainly driving cab rear suspension connecting bottom board 5.1.1, after driver's cabin
Link block 5.1.2 is suspended, as shown in fig. 7, the one end driving cab rear suspension link block 5.1.2 passes through welding manner and steering room back suspension
After setting connecting bottom board 5.1.1 connections, the other end is connect with driving cab rear suspension by threaded screw fasteners.
Above-mentioned vertical vibrator 7 or longitudinal vibrator 6 include mainly upper junction plate 7.1, oscillating bearing 7.2, lower connecting plate
7.3, excitation head 7.4, as shown in figure 8, wherein 7.4 end of excitation head is connected with lower connecting plate by several bolts being circular layout
It connects；Meanwhile lower connecting plate 7.3 is connect with upper junction plate 7.1 by oscillating bearing 7.2 and respective bolt, can avoid vibrator as a result,
Occur Planar Mechanisms state, above-mentioned upper junction plate 7.1 and vibrator mounting plate 4.3 or portal frame in portal frame 4 during the work time
Crossbeam lower reinforcing plate 4.7 is bolted.Above-mentioned vertical vibrator 7 works independently with longitudinal vibrator 6, and when removable etc.
Driver's cabin 5 is imitated after respective direction rotated ninety degrees, longitudinal vibrator can be used as lateral vibrator and use.
The present invention also provides the test methods of above-mentioned cab mounting fatigue endurance comprising following steps：
(1) 1, No. 2 tie-beam and ballast box are moved, and is packed into the solid particle of appropriate corresponding density in ballast box, directly
Center of gravity, quality, rotary inertia to equivalent driver's cabin is consistent with true driver's cabin；
(2) by above-mentioned test-bed pedestal, cab mounting pedestal, the forward and backward suspension of driver's cabin, portal frame, removable etc.
Effect driver's cabin is installed in place as required；
(3) above-mentioned vertical vibrator one end is installed on above-mentioned portal frame crossbeam lower reinforcing plate by bolt, the other end is logical
Cross the vertical connection card slot that bolt is installed in removable equivalent driver's cabin；
(4) oil circuit, the circuit for connecting vibrator, the loading frequency and load of vibrator are controlled by hydraulic control system；
(5) if under minimal circulation number, there is fracture, crackle or wear extent mistake in cab mounting metalwork and elastic component
Greatly, then turn (12), otherwise, turn (6)；
(6) vertical vibrator is unloaded, above-mentioned longitudinal vibrator one end is installed on the installation of portal frame vibrator by bolt
Plate, the other end are installed on the longitudinally connected card slot in removable equivalent driver's cabin by bolt；
(7) oil circuit, the circuit for connecting vibrator, the loading frequency and load of vibrator are controlled by hydraulic control system；
(8) if under minimal circulation number, there is fracture, crackle or wear extent mistake in cab mounting metalwork and elastic component
Greatly, then turn (12), otherwise, turn (9)；
(9) connection for unloading longitudinal vibrator and longitudinally connected card slot swashs longitudinal equivalent driver's cabin rotated ninety degrees
The device that shakes is bolted with lateral connection card slot；
(10) oil circuit, the circuit for connecting vibrator, the loading frequency and load of vibrator are controlled by hydraulic control system；
(11) if under minimal circulation number, there is fracture, crackle or wear extent in cab mounting metalwork and elastic component
It is excessive, then turn (12), otherwise, and off-test, cab mounting fatigue endurance qualification；
(12) off-test, cab mounting fatigue endurance are unqualified.
The foregoing is merely illustrative of the preferred embodiments of the present invention, it will be understood by those skilled in the art that not departing from the present invention
Spirit and scope in the case of, various changes or equivalent replacement can be carried out to these features and embodiment.
Claims (10)
1. a kind of cab mounting fatigue endurance test rack includes mainly test-bed pedestal, cab mounting pedestal, drives
Room rear-suspending, portal frame, removable equivalent driver's cabin, longitudinal vibrator, vertical vibrator, cabin front suspension is sailed to set, it is described to drive
It sails room suspension pedestal to be bolted in the T-slot for being installed on test-bed pedestal, cabin front suspension is set and steering room back suspension
The bottom set is bolted with cab mounting pedestal top respectively, removable equivalent cab bottom respectively with driver's cabin
Front-suspension and driving cab rear suspension top are bolted, and the T for being installed on test-bed pedestal is bolted in portal frame
In type groove, it is characterised in that：Vertical vibrator one end is bolted with portal frame crossbeam lower reinforcing plate, the other end with it is removable
The vertical connection card slot of the equivalent driver's cabin of formula is bolted, when vertical vibrator carries out vertical exciting by input road spectrum,
The vertical fatigue endurance characteristic of cab mounting can be measured；Longitudinal vibrator one end is connected with portal frame vibrator mounting plate by bolt
It connects, the horizontal card slot of the other end and removable equivalent driver's cabin is bolted with longitudinal card slot, when longitudinal vibrator is by defeated
When approach spectrum carries out vertical or horizontal exciting, the vertical or horizontal fatigue endurance characteristic of cab mounting can be measured.
2. a kind of cab mounting fatigue endurance test rack according to claim 1, it is characterised in that：Above-mentioned portal frame
Mainly include portal frame pedestal, gantry pillar reinforcing plate, vibrator mounting plate, portal frame top stiffener, portal frame crossbeam,
Portal frame crossbeam upper reinforcing plate, portal frame crossbeam lower reinforcing plate, portal frame vertical beam connecting plate, the connection of portal frame top stiffener
Plate, portal frame vertical beam, portal frame bottom reinforcement, above-mentioned portal frame substructure height can be adjusted according to the height of driver's cabin and replace
It changes.
3. a kind of cab mounting fatigue endurance test rack according to claim 2, it is characterised in that：Portal frame vertical beam
The comprehensive use of strengthening version, portal frame crossbeam lower reinforcing plate, portal frame top stiffener enhances in reinforcing plate, portal frame crossbeam
The every rigidity and intensity of portal frame, extraneous vibration when vibrator works reduce.
4. a kind of cab mounting fatigue endurance test rack according to claim 1, it is characterised in that：It is above-mentioned removable
Equivalent driver's cabin mainly sets company including driving cab rear suspension connecting elements, back wall, tie-beam, front wall, ballast box, cabin front suspension
Connection member, preceding rebound, driver's cabin center of gravity component, rear rebound, wherein driving cab rear suspension connecting elements, back wall, tie-beam,
Front wall, cabin front suspension are set to be passed through two-by-two between connecting elements, preceding rebound, driver's cabin center of gravity component, each component of rear rebound
It is bolted, and for the driver's cabin of different automobile types, above-mentioned each component can be replaced accordingly.
5. a kind of cab mounting fatigue endurance test rack according to claim 4, it is characterised in that：Above-mentioned driver's cabin
Center of gravity component records true driver's cabin barycentric coodinates, and above-mentioned ballast box and tie-beam can be moved in the forward and backward bolt elongated slot enclosed
It is dynamic, and the solid particle or solid block of different densities can be packed into above-mentioned ballast box, removable equivalent driver's cabin is thus adjusted
Parameter, until equivalent driver's cabin is consistent with the center-of-mass coordinate of true driver's cabin, uniform quality, inertia are consistent.
6. a kind of cab mounting fatigue endurance test rack according to claim 5, it is characterised in that：Above-mentioned driver's cabin
Center of gravity component includes mainly that driver's cabin center of gravity component negative, vibrator support, center of gravity adjust square steel, longitudinally connected card slot, vertical
Connect card slot, metal center of gravity block, lateral connection card slot, several in length and breadth stacked arrangement above-mentioned center of gravity adjust square steel bottom and
Respectively with driver's cabin center of gravity component negative and metal center of gravity block by being welded to connect, above-mentioned vertical connection card slot laterally connects at top
It connects card slot to connect by welding manner with metal center of gravity block respectively with longitudinally connected card slot, and along respective at each connection card groove center
The straight line of respective direction is met at a bit, i.e. the geometric center of metal center of gravity block, and above-mentioned metal weight geometric center is true drives
The center of gravity of room.
7. a kind of cab mounting fatigue endurance test rack according to claim 6, it is characterised in that：Above-mentioned damper
Branch support has diameter identical with cylindrical vibrator, can effectively support vertical, horizontal vibrator, reduces vibrator work
When abnormal shake.
8. a kind of cab mounting fatigue endurance test rack according to claim 1, it is characterised in that：It is above-mentioned vertical sharp
It shakes device or longitudinal vibrator includes mainly upper junction plate, oscillating bearing, lower connecting plate, excitation head, wherein exciting cephalic par is under
Connecting plate connects lower connecting plate by several bolts being circular layout and is connect by oscillating bearing and respective bolt with upper junction plate,
It can avoid vibrator as a result, and occur Planar Mechanisms state during the work time.
9. a kind of cab mounting fatigue endurance test rack according to claim 8, it is characterised in that：Above-mentioned upper connection
Plate is bolted with vibrator mounting plate in portal frame or portal frame crossbeam lower reinforcing plate, above-mentioned vertical vibrator and longitudinal direction
Vibrator works independently, and after removable equivalent driver's cabin is along respective direction rotated ninety degrees, longitudinal vibrator can be used as cross
It is used to vibrator.
10. a kind of test method of cab mounting fatigue endurance test rack as described in claim 1, it is characterised in that：
It the described method comprises the following steps：
(1) mobile connection beam and ballast box, and it is packed into ballast box the solid particle of appropriate corresponding density, until equivalent driving
The center of gravity of room, quality, rotary inertia are consistent with true driver's cabin；
(2) by above-mentioned test-bed pedestal, cab mounting pedestal, the forward and backward suspension of driver's cabin, portal frame, removable equivalent drive
Room is sailed to be installed in place as required；
(3) above-mentioned vertical vibrator one end is installed on above-mentioned portal frame crossbeam lower reinforcing plate by bolt, the other end passes through spiral shell
Bolt is installed on the vertical connection card slot in removable equivalent driver's cabin；
(4) oil circuit, the circuit for connecting vibrator, the loading frequency and load of vibrator are controlled by hydraulic control system；
(5) if under minimal circulation number, cab mounting metalwork and elastic component appearance fracture, crackle or wear extent are excessive,
Then turn (12), otherwise, turns (6)；
(6) vertical vibrator is unloaded, above-mentioned longitudinal vibrator one end is installed on portal frame vibrator mounting plate by bolt, separately
One end is installed on the longitudinally connected card slot in removable equivalent driver's cabin by bolt；
(7) oil circuit, the circuit for connecting vibrator, the loading frequency and load of vibrator are controlled by hydraulic control system；
(8) if under minimal circulation number, cab mounting metalwork and elastic component appearance fracture, crackle or wear extent are excessive,
Then turn (12), otherwise, turns (9)；
(9) connection for unloading longitudinal vibrator and longitudinally connected card slot, by equivalent driver's cabin rotated ninety degrees, by longitudinal vibrator
It is bolted with lateral connection card slot；
(10) oil circuit, the circuit for connecting vibrator, the loading frequency and load of vibrator are controlled by hydraulic control system；
(11) if under minimal circulation number, cab mounting metalwork and elastic component appearance fracture, crackle or wear extent are excessive,
Then turn (12), otherwise, off-test, cab mounting fatigue endurance qualification；
(12) off-test, cab mounting fatigue endurance are unqualified.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810600200.9A CN108645585A (en) | 2018-06-12 | 2018-06-12 | A kind of cab mounting fatigue endurance test rack and its test method |
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| CN201810600200.9A CN108645585A (en) | 2018-06-12 | 2018-06-12 | A kind of cab mounting fatigue endurance test rack and its test method |
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Application publication date: 20181012 |