CN114034496A

CN114034496A - Universal axle automatic test bed

Info

Publication number: CN114034496A
Application number: CN202210011991.8A
Authority: CN
Inventors: 顾国进; 朱昶昱
Original assignee: Jiangsu Huayong Composite Materials Co Ltd
Current assignee: Jiangsu Huayong Composite Materials Co Ltd
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-02-11
Anticipated expiration: 2042-01-07
Also published as: CN114034496B

Abstract

The invention relates to a universal type vehicle axle automatic test bed which is used for detecting the performance of a vehicle axle and is provided with a vehicle axle placing area and a test transmission area, wherein the vehicle axle placing area comprises a vehicle axle support and a vehicle axle body lifting assembly, the vehicle axle support is used for placing the vehicle axle, the vehicle axle support is driven by the vehicle axle body lifting assembly to move up and down, the test transmission area comprises an operating motor, a transmission shaft system, an adjusting bottom plate, a rear end lifting adjusting mechanism and an automatic butt joint assembly, the adjusting bottom plate adjusts the inclination angle through the rear end lifting adjusting mechanism, the transmission shaft system adjusts the inclination angle through the automatic butt joint assembly, the transmission shaft system is driven by the operating motor to rotate, and the automatic butt joint with the vehicle axle is realized through an elastic connecting piece. The invention has the advantages that: the test bed can be automatically adjusted according to different sizes and inclination angles of the axle, so that the axle loading posture can be truly simulated, the test data error is reduced, the automatic butt joint of the transmission shaft system and the axle input flange is realized, and the maintenance cost is reduced.

Description

Universal axle automatic test bed

Technical Field

The invention relates to axle test equipment, in particular to a universal automatic axle test bed.

Background

The automobile axle is also called as axle, and is connected with the frame or the automobile body through a suspension, wheels are installed at two ends of the automobile axle, and the axle is used for bearing the load of the automobile and maintaining the normal running of the automobile on the road. The automobile axle is an important component of an automobile, a series of tests are needed to enter a subsequent link after the axle is assembled, and the existing tests are all provided with special test beds for batch production.

In the existing axle test bed, the transmission shaft system connected with the axle input flange is in a horizontal fixed state, when an axle product with a certain inclination angle is tested, the transmission shaft system and the axle input flange can generate an assembly angle, inertia whipping is formed under the condition of high rotating speed, certain potential safety hazards exist, the loading posture of an axle cannot be truly simulated, the tested experimental data has a certain error compared with the loading operation data, in addition, under the condition of batch production, the test pursuit is high in efficiency, the upper shaft system and the axle input flange of the existing test bed need manual connection, and the upper shaft system and the axle input flange are manually disconnected after the test is finished, so that time and labor are consumed.

The Chinese patent with publication number CN 103344440B provides an axle test bed for an axle assembly running-in test, the axle test bed comprises a mounting base, a gripping device, an automatic centering running-in device, a sliding screw rod transmission device, a translation screw rod transmission device, a lifting clamping device and the like, the test bed can automatically complete the actions of grabbing, lifting, translating, putting in, lifting, positioning, centering, clamping and the like of the axle assembly, has high automation degree, realizes unmanned operation, although the test bed realizes the automatic occlusion butt joint and separation of the test head and the main cone flange surface of the axle assembly through the translation screw rod transmission device, but the coupling between connecting test head and variable frequency speed regulating motor still is the horizontality, is not suitable for the axle that has certain inclination, and translation lead screw transmission is comparatively loaded down with trivial details moreover, and cost of maintenance is higher.

Disclosure of Invention

The invention aims to provide a universal automatic axle test bed which can be automatically adjusted according to different sizes and inclination angles of axles, so that the test bed can truly simulate the loading posture of the axles, the error of test data is reduced, the automatic butt joint of a transmission shaft system and an axle input flange is realized, and the maintenance cost is reduced.

In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a general type axle automatic test platform for axle performance detects, and its innovation point lies in: the universal automatic axle test bed comprises a rack, wherein an axle placing area and a test transmission area are arranged above the rack, and the axle placing area is positioned on one side of the test transmission area;

the axle placing area comprises an axle support for placing an axle and an axle body lifting assembly, and the axle support is driven by the axle body lifting assembly to move up and down;

the test transmission area comprises an operation motor, a transmission shaft system, an adjusting bottom plate, a rear lifting adjusting mechanism and an automatic butt joint assembly, the adjusting bottom plate is connected to the rack in a rotating mode through a front adjusting rotating shaft, the rear lifting adjusting mechanism drives the adjusting bottom plate to rotate around the front adjusting rotating shaft, the operation motor is installed on the adjusting bottom plate, the central axis of the output end of the operation motor is parallel to the adjusting bottom plate, one side of the transmission shaft system is connected with the output end of the operation motor, the other side of the transmission shaft system is connected with the axle through an elastic connecting piece, the transmission shaft system adjusts the inclination angle through the automatic butt joint assembly to enable the transmission shaft system to be parallel to the adjusting bottom plate, the transmission shaft system is driven to rotate by the operation motor and is automatically butted with the axle through the elastic connecting piece, and the transmission shaft system comprises a torque sensor, a connecting inner shaft, a universal coupling and a general alignment connector, the torque sensors are arranged on the top of the adjusting bottom plate through a shafting bridge and are parallel to the adjusting bottom plate, and the connecting inner shaft is arranged on the top of the adjusting bottom plate through a bearing limiting seat and is parallel to the adjusting bottom plate;

the automatic butt joint assembly comprises a pushing butt joint cylinder, a lifting centering cylinder and a lower jacking head;

the pushing butt joint cylinder is arranged on one side, close to the axle placing area, of the front adjusting rotating shaft and is installed on the top of the adjusting bottom plate through a front end installing bottom plate;

the lifting centering cylinder is arranged on one side, close to the axle placing area, of the pushing butt joint cylinder and is connected with the end part of a telescopic rod of the pushing butt joint cylinder through an upper jacking cylinder mounting plate, the telescopic rod of the lifting centering cylinder faces upwards and is perpendicular to the adjusting bottom plate, and the lifting centering cylinder is driven to be close to or far away from the axle placing area through the pushing butt joint cylinder below the universal coupling and the universal butt joint head;

the top of the lower jacking head is provided with an arc-shaped groove matched with the outer surface of the universal coupling, the lower jacking head is installed at the end part of a telescopic rod of the lifting centering cylinder, and the lower jacking head is driven to be close to or far away from the universal coupling through the lifting centering cylinder;

go up top cylinder mounting panel below and be equipped with two slip tracks, two the equal fixed mounting of slip track is on front end mounting plate and the symmetry sets up the both sides of propelling movement butt joint cylinder telescopic link, two slip track and propelling movement butt joint cylinder telescopic link parallel arrangement, go up the bottom of top cylinder mounting panel and install two sliders that correspond respectively with the slip track, the slider sets up on the slip track and moves along the slip track.

Furthermore, the two bridge supports are provided, each bridge body lifting assembly comprises a first driving motor, two first lead screw lifters and a commutator, the two first lead screw lifters are symmetrically arranged on the vertical plane of the central axis of the transmission shaft system and are arranged on the rack through a bridge support underframe, the two bridge supports are respectively and horizontally arranged at the tops of the two first lead screw lifters, the first driving motor is arranged between the two first lead screw lifters and simultaneously drives the two first lead screw lifters through the commutator to drive the two bridge supports to synchronously move upwards or downwards;

the first lead screw lifter is arranged in the middle of the lower portion of the bridge support, two linear shafts used for linear guiding and limiting are symmetrically arranged on two sides of the first lead screw lifter, a limiting moving groove for the linear shafts to move up and down is formed in the bridge support underframe, and the top ends of the two linear shafts are connected to two sides of the bottom surface of the bridge support respectively.

Further, elastic connection spare is the elasticity bolt, the setting of elasticity bolt is on general counterpoint connector, general counterpoint connector is close to one side that the district was placed to the axle and has flange, flange is last to have a plurality of fixed orificess, a plurality of locating holes have on the input flange of axle, one side of elasticity bolt is fixed to be set up in the fixed orifices, and the opposite side of elasticity bolt gets into the locating hole and realizes general counterpoint connector and axle connection.

Furthermore, the front adjusting rotating shaft is horizontally arranged on one side, close to the axle placing area, of the adjusting bottom plate and is perpendicular to the transmission shaft system, the front adjusting rotating shaft is horizontally arranged on the rack through two upper end adjusting frames, the two upper end adjusting frames are vertically arranged on two sides of the adjusting bottom plate respectively, two sides of the front adjusting rotating shaft are fixedly connected to the upper portions of the upper end adjusting frames respectively, one side, far away from the adjusting bottom plate, of each upper end adjusting frame is fixedly connected with an adjusting frame side support, and the bottom of each adjusting frame side support is fixedly connected to the rack;

the adjusting bottom plate rotates around the front adjusting rotating shaft through two first vertical seat bearings, the two first vertical seat bearings are arranged on the front adjusting rotating shaft, and the bottoms of the two first vertical seat bearings are fixedly arranged at the tops of the two sides of the adjusting bottom plate respectively.

Furthermore, the rear end lifting adjusting mechanism is arranged below one side of the adjusting bottom plate, which is far away from the axle placing area, and comprises a second screw rod lifter, a slideway component and a bearing component;

the second lead screw lifter is arranged below the adjusting bottom plate and is vertical to the adjusting bottom plate, the second lead screw lifter is arranged on the rack through a bearing assembly, the second lead screw lifter is driven by a second driving motor, and the adjusting bottom plate is driven to rotate around the front adjusting rotating shaft through a slide assembly;

the slide way assembly comprises a slide way strip, a rear screw rod sliding head and a sliding sleeve plate, the slide way strip is installed at the bottom of the adjusting bottom plate, the rear screw rod sliding head is fixed at the top of the sliding sleeve plate, the sliding sleeve plate is fixedly connected with the extending end of the second screw rod lifter, a groove matched with the rear screw rod sliding head is formed in the bottom of the slide way strip, the rear screw rod sliding head is arranged in the groove and drives the rear screw rod sliding head to move along the groove direction through the sliding sleeve plate, and the moving direction is parallel to the central axis of the adjusting bottom plate;

the bearing subassembly includes back bearing board, two back transfer fagging and four vertical pedestal bearings of second, four two liang of vertical pedestal bearings of second are corresponding with a back transfer fagging respectively, second lead screw lift and second driving motor are all installed at back bearing board top surface, two back transfer fagging vertical setting respectively is in back bearing board both sides, two pairs of vertical pedestal bearings of second are all fixed to be set up on the rack and set up respectively and transfer the fagging after two and keep away from back bearing board one side, two back transfer the fagging all be connected with a pair of vertical pedestal bearing of second through the back pivot that a level set up, two the coaxial setting of back pivot and with preceding regulation pivot is parallel, back bearing board drives through second lead screw lift and rotates around the back pivot.

Furthermore, two sides of the adjusting bottom plate are respectively provided with a vibration stopping tensioning cylinder, the vibration stopping tensioning cylinders are symmetrically arranged relative to the central axis of the adjusting bottom plate, the vibration stopping tensioning cylinders are vertically arranged on the rack and are arranged on one side, away from the axle placing area, of the front adjusting rotating shaft, and the extending end of each vibration stopping tensioning cylinder is connected with the adjusting bottom plate through an adjusting assembly;

the adjusting part includes that cylinder regulating plate and cylinder adjust the head, the cylinder regulating plate has diaphragm and riser, diaphragm and riser mutually support and form 7 font structures, diaphragm and regulation bottom plate fixed connection, the riser sets up in regulation bottom plate one side, the cylinder is adjusted the head setting and is kept away from regulation bottom plate one side at the riser and hold fixed connection with ending stretching out of quivering taut cylinder, the cylinder is adjusted one side that the head is close to the riser and is had an arch, have one on the riser and protruding complex spout, the arch sets up in the spout and along spout rectilinear movement, and the moving direction with it is parallel to adjust the bottom plate axis.

Furthermore, the universal axle automatic test bed also comprises a protection mechanism, wherein the protection mechanism comprises a test transmission area protection plate, an axle placing area fence, a rear transmission shield, a rear section protection sheet and a front transmission shield;

the test transmission area protection plate surrounds the test transmission area, the test transmission area protection plate is provided with a plurality of heat dissipation holes which are arranged in a matrix mode at the position of a transmission motor, two sides of a transmission shaft system on the test transmission area protection plate are provided with first sliding doors, and the sliding doors are provided with observation windows;

the vehicle axle placing area fence surrounds the periphery of the vehicle axle placing area, and a second sliding door is arranged on one side, away from the test transmission area, of the vehicle axle placing area fence;

the rear transmission shield surrounds two sides and the upper part of the torque sensor, and is arranged on the shafting bridge;

rear-end protection piece and preceding transmission guard shield are mutually supported and are protected universal joint and general counterpoint connector, rear-end protection piece and preceding transmission guard shield are all installed on front end mounting plate through the mounting bar at the bottom of protecting, the rear-end screening glass setting is kept away from one side that the district was placed to the axle at universal joint and is protected universal joint, preceding transmission guard shield is including fixed guard shield and removal guard shield, fixed guard shield sets up and protects universal joint in one side that the district was placed to the rear-end screening glass near the axle, it protects universal joint and general counterpoint connector to remove one side that fixed guard shield set up the district was placed to the axle, it cup joints on fixed guard shield and removes to be close to or keep away from the axle along fixed guard shield direction and places the district to remove the guard shield.

The invention has the advantages that:

(1) according to the universal automatic axle test bed, the axles with different sizes and inclination angles can be tested by the test bed through the bidirectional automatic adjustment of the axle placing area and the test transmission area, and the application range is wide; the inclination angle of the adjusting bottom plate is adjusted through the rear end lifting adjusting mechanism, so that the adjusting bottom plate is suitable for the inclination angle of the axle input flange, the angle of the transmission shaft system is adjusted through the automatic butt joint assembly to be parallel to the adjusting bottom plate, after the axle is placed, the placing height of the axle is adjusted through the axle body lifting assembly, so that the central axis of the output end of the transmission motor, the central axis of the transmission shaft system and the central axis of the axle input flange are in the same straight line, the axle loading posture is truly simulated, and the error of test data is reduced; through setting up elastic connection spare, the transmission shafting only drives the rotation through the operation motor and can realize the automatic butt joint with the axle, simple structure, and cost of maintenance is low.

(2) The two bridge supports correspond to one first lead screw lifter respectively, the first driving motor drives the two first lead screw lifters simultaneously through the commutator to drive the two bridge supports to move upwards or downwards synchronously, and the inclination of the axle in the up-and-down moving process can be effectively avoided; two linear shafts are symmetrically arranged on two sides of the first lead screw lifter, when the bridge support is driven by the first lead screw lifter to move up and down, the linear shafts on two sides also move up and down along the limiting moving groove, so that the guiding and limiting effects are achieved in the linear motion process, and the two sides of the bridge support are effectively prevented from shaking in the moving process.

(3) The transmission shaft system is provided with the universal coupling, so that a complicated alignment process can be avoided, and the detection efficiency is improved; elastic connection spare sets up to elastic bolt to set up one side in the flange fixed orifices of general counterpoint connector, utilize elastic bolt's elasticity characteristic, after the axle is put, drive general counterpoint connector through driving motor and slowly rotate, get into the flange's of axle input flange in the opposite side of elastic bolt until, realize flexible butt joint success, simple structure, easy to operate, during the maintenance only need change elastic bolt can, easy maintenance is swift.

(4) The upper end adjusting frame can raise and adjust the height of the front end of the bottom plate, so that the upper end adjusting frame can better adapt to the size of an axle and reduce the butt joint difficulty; adjusting frame side supports are arranged on two sides of the upper adjusting frame to support the upper adjusting frame, so that the upper adjusting frame is prevented from being inclined due to the gravity of the adjusting bottom plate, and the firmness of the upper adjusting frame is improved; through setting up two first vertical pedestal bearings, avoid adjusting the bottom plate and take place to rock at the rotation in-process.

(5) According to the invention, the lower supporting head is indirectly driven to move to the axle placing area through the pushing butt joint cylinder and the lifting centering cylinder by arranging the pushing butt joint cylinder and the lifting centering cylinder, and the lifting action is carried out on the universal coupling by the driving of the lifting centering cylinder, so that the universal coupling is parallel to the adjusting bottom plate, and the automatic butt joint of the alignment connector and the axle input flange at one side of the universal coupling is prepared; through setting up top cylinder mounting panel and slip track, can support the telescopic link of propelling movement butt joint cylinder, improve the life of propelling movement butt joint cylinder.

(6) According to the rear-end lifting adjusting mechanism, the slideway component and the supporting component are arranged, so that the second screw rod lifter can be always vertical to the adjusting bottom plate in the rotating process of the adjusting bottom plate, and the adjusting bottom plate can be ensured to normally rotate; through setting up the vertical pedestal bearing of two pairs of second, make back bearing plate remain stable unsettled state and the rotation of duplex winding back pivot, can effectively avoid because the action of gravity leads to the back pivot to take place to incline, influence angle modulation and structural stability.

(7) The anti-shake tensioning cylinder disclosed by the invention can apply a fastening force to the adjusting bottom plate in the working process of the test bed, so that the test transmission area is prevented from shaking.

(8) The protection mechanism not only protects each device in the test bed, but also protects external operators, improves the safety factor, and facilitates the observation of personnel and the maintenance of devices.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural diagram of a universal axle automatic test bed according to the present invention;

FIG. 2 is a schematic view of the axle receiving area of the present invention;

FIG. 3 is a schematic illustration of the connection of the bridge span and the bridge lifting assembly of the present invention;

FIG. 4 is a schematic illustration of a test drive zone configuration in accordance with the present invention;

FIG. 5 is a schematic view of a transmission shafting structure according to the present invention;

FIG. 6 is a schematic connection diagram of the universal alignment connector and the elastic connector according to the present invention;

FIG. 7 is a schematic view of the connection between the front adjusting spindle and the adjusting base plate according to the present invention;

FIG. 8 is a schematic view of the connection between the automatic docking assembly and the adjusting base plate and the transmission shaft system;

FIG. 9 is a schematic view of the connection of the upper cylinder mounting plate to the slide rail according to the present invention;

FIG. 10 is a schematic view of the connection between the rear lifting adjustment mechanism and the adjustment base plate according to the present invention;

FIG. 11 is a schematic structural view of a rear lift adjustment mechanism according to the present invention;

FIG. 12 is a schematic structural view of a flutter stopping tensioning cylinder in the invention;

FIG. 13 is a schematic view of the connection of the back guard and the front transmission shield of the present invention.

Reference numbers in the figures: A. a test drive zone; B. an axle placement area; C. a rack; 1. an axle; 2. supporting a bridge; 3. a bridge lifting assembly; 301. a first drive motor; 302. a first lead screw elevator; 303. a bridge pedestal; 304. a commutator; 305. a linear shaft; 306. a shaft bridge; 307. a shaft sleeve; 4. operating the motor; 5. a drive shaft system; 501. a torque sensor; 502. connecting the inner shaft; 5021. a bearing limit seat; 503. a universal coupling; 504. a universal alignment connector; 5041. an elastic bolt; 5042. a fixing hole; 505. a shafting bridge frame; 6. adjusting the bottom plate; 7. a rear end lifting adjusting mechanism; 701. a second lead screw lifter; 702. a second drive motor; 703. a chute assembly; 7031. a slide way strip; 7032. a rear screw slider; 7033. a slipcover plate; 704. a holding assembly; 7041. a rear bearing plate; 7042. a back supporting plate is adjusted; 7043. a second vertical mount bearing; 7044. a rear rotating shaft; 8. an automatic docking assembly; 801. pushing the butting cylinder; 802. lifting the centering cylinder; 803. a lower propping head; 804. a bottom plate is arranged at the front end; 805. an upper jacking cylinder mounting plate; 8051. a first transverse plate; 8052. a second transverse plate; 8053. a first vertical plate; 8054. a second vertical plate; 8055. a telescopic end head; 8056. a telescopic side rod; 8057. a sliding track; 8058. a slider; 9. a front adjusting rotating shaft; 901. an upper end adjusting frame; 902. the adjusting frame is laterally supported; 903. a first vertical base bearing; 10. a vibration-stopping tensioning cylinder; 1001. a cylinder adjusting plate; 1002. a cylinder adjusting head; 1003. a protrusion; 1004. a chute; 11. a protection mechanism; 1101. a test transmission area protection plate; 1102. an axle placement area fence; 1103. a rear drive guard; 1104 a back protective sheet; 1105. a front drive shield; 11051. fixing the shield; 11052 moving the shield; 1106. a bottom plate is arranged at the front end; 1107. a reinforcing sheet.

Detailed Description

The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the scope of the embodiments described herein.

As shown in FIG. 1, the universal automatic axle test bed comprises a rack C, wherein an axle placing area B and a test transmission area A are arranged above the rack C, and the axle placing area B is positioned on one side of the test transmission area A.

As shown in fig. 2, the axle placing area B includes a bridge 2 for placing the axle 1 and a bridge lifting assembly 3, and the bridge 2 is driven by the bridge lifting assembly 3 to move up and down.

As shown in fig. 4, the test transmission area a includes an operation motor 4, a transmission shaft system 5, an adjustment bottom plate 6, a rear-end lifting adjustment mechanism 7 and an automatic docking assembly 8, the adjustment bottom plate 6 is rotatably connected to the rack C through a front adjustment rotating shaft 9, the rear-end lifting adjustment mechanism 7 drives the adjustment bottom plate 6 to rotate around the front adjustment rotating shaft 9, the operation motor 4 is installed at the top of one side of the adjustment bottom plate 6 away from the axle placing area B, the central axis of the output end of the operation motor 4 is parallel to the adjustment bottom plate 6, the transmission shaft system 5 is arranged at one side of the operation motor close to the axle placing area B, one side of the transmission shaft system 5 is connected with the output end of the operation motor 4, the other side of the transmission shaft system 5 is connected with the axle 1 through an elastic connecting piece, the transmission shaft system 5 adjusts the inclination angle through the automatic docking assembly 8 to enable the transmission shaft system 5 to be parallel to the adjustment bottom plate 6, the transmission shaft system 5 is driven to rotate by the operation motor 4, and the automatic butt joint with the axle 1 is realized through the elastic connecting piece.

As a specific implementation, the scheme is further optimized, specifically: as shown in fig. 3, the axle supports 2 of the axle placing area B have two, that is, the axle is stably supported, and raw materials are saved, the axle body lifting assembly 3 includes a first driving motor 301, two first lead screw lifters 302 and a commutator 304, the two first lead screw lifters 302 are symmetrically arranged about a vertical plane where a central axis of the transmission shafting 5 is located, and are installed on the rack C through the axle bracket chassis 303, the two axle supports 2 are respectively horizontally installed on the tops of the two first lead screw lifters 302, the first driving motor 301 is arranged between the two first lead screw lifters 302, and simultaneously drives the two first lead screw lifters 302 through the commutator 304, and drives the two axle supports 2 to synchronously move upwards or downwards, so as to effectively prevent the axle 1 from tilting during the up-down movement; first lead screw lift 302 sets up in the middle part of 2 below of bridge props, the both sides of first lead screw lift 302 still symmetry are equipped with and are used for two sharp axles 305 of sharp direction spacing, two sharp axle 305 top are connected respectively in 2 bottom surfaces both sides of bridge props, bridge crane chassis 303 upwards extends at sharp axle 305 position department has axle bridge 306, be fixed with axle sleeve 307 on the axle bridge 306, sharp axle 305 sets up in axle sleeve 307 to prop 2 drive by the bridge along the axle sleeve direction and reciprocate, effectively avoid 2 both sides of bridge props to take place to rock at the removal in-process.

As shown in fig. 5, the transmission shaft system 5 includes a torque sensor 501, a connecting inner shaft 502, a universal coupling 503 and a universal alignment connector 504, and the torque sensor 501 is sequentially connected from the output end of the transmission motor 4 to the direction of the axle placing area B, the torque sensor 501 is installed on the top of the adjusting base plate 6 through a shaft system bridge 505 and is parallel to the adjusting base plate 6, the connecting inner shaft 502 is installed on the top of the adjusting base plate 6 through a bearing spacing seat 5021 and is parallel to the adjusting base plate 6, the transmission shaft system is provided with the universal coupling 503 to avoid a complicated alignment process, and the detection efficiency is improved.

As shown in fig. 6, the elastic connection piece is an elastic bolt 5041, the elastic bolt 5041 is disposed on the universal alignment connector 504, one side of the universal alignment connector 504, which is close to the axle placement area B, is provided with a connecting flange, the connecting flange is provided with a plurality of fixing holes 5042, the input flange of the axle 1 is provided with a plurality of positioning holes, one side of the elastic bolt 5041 is fixedly disposed in the fixing holes 5042, the other side of the elastic bolt 5041 enters the positioning holes to realize the connection of the universal alignment connector 504 and the axle 1, the structure is simple, the operation is convenient, only the elastic bolt 5041 needs to be replaced during maintenance, and the maintenance is convenient and rapid.

As shown in fig. 7, the front adjusting spindle 9 is horizontally disposed on one side of the adjusting base plate 6 close to the axle placing area B and perpendicular to the transmission shaft system 5, in order to raise the height of the front end of the adjusting base plate, so that the front end of the adjusting base plate can better adapt to the size of an axle, and reduce the difficulty of butt joint, the front adjusting spindle 9 is horizontally mounted on the rack C through two upper end adjusting brackets 901, the two upper end adjusting brackets 901 are respectively vertically disposed on two sides of the adjusting base plate 6, two sides of the front adjusting spindle 9 are respectively and fixedly connected to the upper portions of the upper end adjusting brackets 901, one side of the upper end adjusting bracket 901 away from the adjusting base plate 6 is respectively and fixedly connected with an adjusting bracket side brace 902, the bottom of the adjusting bracket side brace 902 is fixedly connected to the rack C to support the upper end adjusting brackets 901, so as to prevent the adjusting base plate 6 from gravity pressing the upper end adjusting brackets 901 to incline, and improve the firmness of the upper end adjusting brackets 901; for avoiding adjusting baseplate 6 to take place to rock at the rotation in-process, adjusting baseplate 6 rotates around preceding regulation pivot through two first vertical pedestal bearings 903, and two first vertical pedestal bearings 903 set up in the front on regulation pivot 9, and two first vertical pedestal bearings 903 bottom difference fixed mounting are at 6 both sides tops of adjusting baseplate.

As shown in fig. 8, the automatic docking assembly 8 includes a pushing docking cylinder 801, a lifting centering cylinder 802 and a lower supporting head 803, the pushing docking cylinder 801 is disposed on one side of the front adjusting rotating shaft 9 close to the axle placing region B and is mounted on the top of the adjusting bottom plate 6 through a front end mounting bottom plate 804, and an expansion rod of the pushing docking cylinder 801 is parallel to the central axis of the adjusting bottom plate 6.

The lifting centering cylinder 802 is arranged on one side, close to the axle placing area B, of the pushing butt joint cylinder 801, is connected with the end portion of a telescopic rod of the pushing butt joint cylinder 801 through an upper top cylinder mounting plate 805, the telescopic rod of the lifting centering cylinder 802 faces upwards and is perpendicular to the adjusting bottom plate 6, and the lifting centering cylinder 802 is driven to be close to or far away from the axle placing area B through the pushing butt joint cylinder 801 below the universal coupling 503 and the universal butt joint connector 504.

The top of the lower supporting head 803 is provided with an arc-shaped groove 8031 matched with the outer surface of the universal coupling 503, the lower supporting head 803 is installed at the end part of a telescopic rod of the lifting centering cylinder 802, the lower supporting head 803 is driven to be close to or far from the universal coupling through the lifting centering cylinder 802, and the lower supporting head 803 is driven to move towards or far from the direction of the universal coupling while being close to or far from the axle placing area B through the mutual matching of the pushing butt joint cylinder 801 and the lifting centering cylinder 802.

As shown in fig. 9, the upper cylinder mounting plate 805 has a first cross plate 8051, a second cross plate 8052, a first vertical plate 8053, the push-butt-joint air cylinder comprises a second vertical plate 8054, two telescopic end heads 8055 and two telescopic side rods 8056 which correspond to the telescopic end heads respectively, wherein the first horizontal plate 8051 is arranged above the second horizontal plate 8052, the first vertical plate 8053 and the second vertical plate 8054 are arranged between the first horizontal plate 8051 and the second horizontal plate 8052 and are perpendicular to the telescopic rods of the push-butt-joint air cylinder 801, the first vertical plate 8053 is arranged on one side, close to the push-butt-joint air cylinder 801, of the second vertical plate 8054, the first vertical plate 8053 is arranged on one side, close to the push-butt-joint air cylinder 801, of the first vertical plate 8053, the two telescopic end heads 8055 are arranged on one side, close to the push-butt-joint air cylinder 801, of the telescopic side rods 8056, one side of the telescopic side rods 8056 is fixedly connected to one side, close to the first vertical plate 8053, of the other side of the telescopic side rods 8056 penetrates through the first vertical plate 8053 to be fixedly connected with the telescopic end heads, and the arrangement of the telescopic side rods 8056 improves the stability degree of the upper top air cylinder mounting plate 805; two sliding rails 8057 are arranged below the second transverse plate 8052, the two sliding rails 8057 are fixedly mounted on the front end mounting base plate 804 and symmetrically arranged on two sides of the telescopic rod of the pushing and butting cylinder 801, the two sliding rails 8057 are arranged in parallel with the telescopic rod of the pushing and butting cylinder 801, two sliding blocks 8058 corresponding to the sliding rails 8057 are mounted at the bottom of the second transverse plate 8052, the sliding blocks 8058 are arranged on the sliding rails 8057 and move along the sliding rails 8057, and by arranging the upper top cylinder mounting plate 805 and the sliding rails 8057, the telescopic rod of the pushing and butting cylinder 801 is supported while the pushing and lifting centering cylinder 802 is pushed to move, so that the service life of the pushing and butting cylinder 801 is prolonged.

As shown in fig. 10, the rear end lifting adjusting mechanism 7 is disposed below one side of the adjusting bottom plate 6 away from the axle placing region B, and the rear end lifting adjusting mechanism 7 includes a second lead screw lifter 701, a slide assembly 703 and a bolster assembly 704; the second lead screw lifter 701 is arranged below the adjusting bottom plate 6 and is perpendicular to the adjusting bottom plate 6, the second lead screw lifter 701 is arranged on the rack C through a bearing assembly 704, the second lead screw lifter 701 is driven by a second driving motor 702, and the adjusting bottom plate 6 is driven to rotate around the front adjusting rotating shaft 9 through a slide assembly 703.

As shown in fig. 11, the sliding track assembly 703 includes a sliding track bar 7031 installed at the bottom of the adjusting bottom plate 6, a rear lead screw sliding head 7032 and a sliding sleeve plate 7033, the rear lead screw sliding head 7032 is fixed at the top of the sliding sleeve plate 7033, the sliding sleeve plate 7033 is fixedly connected to the extending end of the second lead screw elevator 701, a groove matched with the rear lead screw sliding head 7032 is formed at the bottom of the sliding track bar 7031, the rear lead screw sliding head 7032 is disposed in the groove and is driven by the sliding sleeve plate 7033 to move along the groove, and the moving direction is parallel to the central axis of the adjusting bottom plate 6; the supporting component 704 comprises a rear supporting plate 7041, two rear supporting plates 7042 and four second vertical seat bearings 7043, every two of the four second vertical seat bearings 7043 correspond to one rear supporting plate 7042 in a pair, the second screw elevator 701 and the second driving motor 702 are both installed on the top surface of the rear supporting plate 7041, the two rear supporting plates 7042 are respectively vertically arranged on two sides of the rear supporting plate 7041, the two pairs of second vertical seat bearings 7043 are both fixedly arranged on the rack C and are respectively arranged on one side, away from the rear supporting plate 7041, of the two rear supporting plates 7042, the two rear supporting plates 7042 are both connected with the pair of second vertical seat bearings 7043 through a horizontally arranged rear rotating shaft 7044, the two rear rotating shafts 7044 are coaxially arranged and are parallel to the front adjusting rotating shaft 9, and the rear supporting plate 7041 is driven to rotate around the rear rotating shaft 7044 through the second screw elevator 701; by arranging the slideway component 703 and the supporting component 704, the second lead screw lifter 701 can be always vertical to the adjusting bottom plate 6 in the rotating process of the adjusting bottom plate 6, so that the adjusting bottom plate 6 can normally rotate; through setting up two pairs of vertical seat bearings 7043 of second, make back bearing plate 7041 keep stablizing unsettled state and revolve the rotation of back pivot, can effectively avoid because the action of gravity leads to back pivot 7044 to take place to incline, influences angle modulation and structural stability.

As shown in figures 4 and 12, the two sides of the adjusting bottom plate 6 are respectively provided with a vibration stopping tensioning cylinder 10, a fastening force can be applied to the adjusting bottom plate 6 in the working process of the test bed to prevent a test transmission area from vibrating, the vibration stopping tensioning cylinders 10 are symmetrically arranged about the axis of the adjusting bottom plate 6, the vibration stopping tensioning cylinders 10 are vertically arranged on the rack C and are arranged on one side, away from an axle placing area B, of the front adjusting rotating shaft 9, the extending ends of the vibration stopping tensioning cylinders 10 are connected with the adjusting bottom plate 6 through adjusting components, each adjusting component comprises a cylinder adjusting plate 1001 and a cylinder adjusting head 1002, the cylinder adjusting plate 1001 is provided with a transverse plate and a vertical plate, the transverse plate and the vertical plate are matched with each other to form a 7-shaped structure, the transverse plate is fixedly connected with the adjusting bottom plate 6, the vertical plate is arranged on one side, away from the adjusting bottom plate, of the cylinder adjusting head 1002 is arranged on one side, away from the vertical plate, and is fixedly connected with the extending ends of the vibration stopping tensioning cylinders 10, the side of the cylinder adjusting head 1002 close to the vertical plate is provided with a protrusion 1003, the vertical plate is provided with a sliding groove 1004 matched with the protrusion 1003, the protrusion 1003 is arranged in the sliding groove 1004 and moves linearly along the sliding groove 1004, and the moving direction is parallel to the central axis of the adjusting bottom plate 6.

In order to better protect the test bed equipment and improve the safety factor of external operators, as shown in fig. 1, the universal axle automatic test bed further comprises a protection mechanism 11, wherein the protection mechanism 11 comprises a test transmission area protection plate 1101, an axle placing area fence 1102, a rear transmission shield 1103, a rear section protection sheet 1104 and a front transmission shield 1105; the test transmission area protection plate 1101 surrounds the test transmission area A, the test transmission area protection plate 1101 is provided with a plurality of heat dissipation holes which are arranged in a matrix mode at the position of the transmission motor 4, two sides of a transmission shaft system 5 on the test transmission area protection plate 1101 are provided with first sliding doors, and the sliding doors are provided with observation windows; the axle placing area fence 1102 surrounds the axle placing area B, and the axle placing area fence 1102 is provided with a second sliding door at one side of the axle placing area, which is far away from the test transmission area; a rear drive shroud 1103 is wrapped around the torque sensor 501 on both sides and above, and the rear drive shroud 1103 is mounted on a shafting bridge 505.

As shown in fig. 13, the rear-section protection plate 1104 and the front transmission shield 1105 are matched with each other to protect the universal coupling 503 and the universal alignment connector 504, the rear-section protection plate 1104 and the front transmission shield 1105 are both mounted on the front end mounting base plate 804 through the protection bottom mounting bar 1106, the protection bottom mounting bars 1106 are provided with two bars and respectively arranged on two sides of the universal coupling 503, one side of each protection bottom mounting bar 1106 is fixedly connected to the shafting bridge 505, the bottom of the other side of each protection bottom mounting bar 1106 is fixed on the front end mounting base plate 804 through a vertical support plate, the two protection bottom mounting bars 1106 are fixed through the reinforcing plate 1107, the automatic docking assembly is arranged between the two protection bottom mounting bars 1106, the lower support head 803 is located on the side of the reinforcing plate 1107 close to the axle placing area B, and the reinforcing plate 1107 is used for connecting and fixing the two protection bottom mounting bars 1106 and also for limiting the lower support head 803; rear segment protection sheet 1104 sets up and protects universal joint 503 in the one side that universal joint 503 kept away from axle and places district B, preceding transmission guard 1105 includes fixed guard 11051 and removal guard 11052, fixed guard 11051 sets up and protects universal joint 503 in the one side that rear segment protection sheet 1104 is close to axle and places district B, removal guard 11052 sets up one side that fixed guard 11051 is close to axle and places district B and protects universal joint head 504, removal guard 11052 cup joints on fixed guard 11051 and moves and is close to or keep away from axle and place district B along fixed guard 11051 direction, fixed guard 11051 and removal guard 11052 all adopt the grid structure, can enough play the guard action, the automatic butt joint condition of convenient observation again.

The working principle is as follows: when the universal automatic axle test bed needs to detect the axle, according to the size of the axle to be detected and the inclination angle of an input flange of the axle to be detected, in a test transmission area A, a second driving motor 702 is started firstly to drive a second lead screw lifter 701 to lift and drive an adjusting bottom plate 6 to rotate around a front adjusting rotating shaft 9, so that the included angle between the adjusting bottom plate 6 and the horizontal plane is consistent with the inclination angle of the input flange of the axle to be detected, in the rotating process of the adjusting bottom plate 6, the second lead screw lifter 701 drives a rear lead screw sliding head 7032 to move in a slideway strip 7031, a rear bearing plate 7041 rotates around a rear rotating shaft 7044 synchronously, and the second lead screw lifter 701 is always kept perpendicular to the adjusting bottom plate 6; then, a pushing and butting cylinder 801 is started to push a lifting and centering cylinder 802, the lifting and centering cylinder 802 lifts a lower supporting head 803, the lower supporting head 803 is lifted after contacting with a universal coupling 503, after the sensor senses that the central axis of the universal coupling 503 is parallel to an adjusting bottom plate 6, the lifting and centering cylinder 802 drives the lower supporting head 803 to move downwards to be separated from the universal coupling 503, the pushing and butting cylinder 801 continues to push the lifting and centering cylinder 802 to drive the lower supporting head 803, and the lower supporting head is continuously abutted to a connecting flange of a universal aligning connector 504 to apply a fastening force; in the axle placing area B, a first driving motor 301 is started to drive a first lead screw lifter 302 to lift the axle support 2 to a proper height; placing an axle to be tested, placing an input flange of the axle to be tested at the universal alignment connector 504, starting the transmission motor 4, transmitting power to the universal alignment connector 504 through the torque sensor 501, the connecting inner shaft 502 and the universal coupling 503, driving the elastic bolt 5041 on the connecting flange of the universal alignment connector 504 to slowly rotate until the elastic bolt 5041 is clamped into a connecting hole on the axle input flange, and realizing the automatic successful butt joint.

The universal automatic axle test bed can automatically adjust the test bed according to different sizes and inclination angles of axles, so that the test bed can truly simulate the loading posture of the axles, reduce the error of test data, realize the automatic butt joint of a transmission shaft system and an axle input flange and reduce the maintenance cost.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a general type axle automatic test platform for axle performance detects, its characterized in that: the universal automatic axle test bed comprises a rack, wherein an axle placing area and a test transmission area are arranged above the rack, and the axle placing area is positioned on one side of the test transmission area;

2. The universal axle automatic test stand of claim 1, wherein: the bridge body lifting assembly comprises two driving motors, two first lead screw lifters and a commutator, the two first lead screw lifters are symmetrically arranged on a vertical plane where a central axis of the transmission shaft system is located, and are arranged on the rack through a bridge support underframe, the two bridge supports are respectively and horizontally arranged at the tops of the two first lead screw lifters, the first driving motor is arranged between the two first lead screw lifters, and simultaneously drives the two first lead screw lifters through the commutator to drive the two bridge supports to synchronously move upwards or downwards;

3. The universal axle automatic test stand of claim 1, wherein: elastic connection spare is the elasticity bolt, the setting of elasticity bolt is on general counterpoint connector, one side that general counterpoint connector is close to the axle and places the district has flange, flange is last to have a plurality of fixed orificess, a plurality of locating holes have on the input flange of axle, one side of elasticity bolt is fixed to be set up in the fixed orifices, and the opposite side of elasticity bolt gets into the realization in the locating hole general counterpoint connector and is connected with the axle.

4. The universal axle automatic test stand of claim 1, wherein: the front adjusting rotating shaft is horizontally arranged on one side, close to the axle placing area, of the adjusting bottom plate and is perpendicular to the transmission shaft system, the front adjusting rotating shaft is horizontally arranged on the rack through two upper end adjusting frames, the two upper end adjusting frames are vertically arranged on two sides of the adjusting bottom plate respectively, two sides of the front adjusting rotating shaft are fixedly connected to the upper portions of the upper end adjusting frames respectively, one side, far away from the adjusting bottom plate, of each upper end adjusting frame is fixedly connected with an adjusting frame side support, and the bottom of each adjusting frame side support is fixedly connected to the rack;

5. The universal axle automatic test stand of claim 1, wherein: the rear end lifting adjusting mechanism is arranged below one side of the adjusting bottom plate, which is far away from the axle placing area, and comprises a second lead screw lifter, a slideway component and a bearing component;

6. The universal axle automatic test stand of claim 1, wherein: the anti-shake tensioning device comprises an adjusting bottom plate, a front adjusting rotating shaft, an axle placing area, a front adjusting rotating shaft, a rear adjusting rotating shaft, a front adjusting rotating shaft and a rear adjusting rotating shaft, wherein two sides of the adjusting bottom plate are respectively provided with an anti-shake tensioning cylinder, the anti-shake tensioning cylinders are symmetrically arranged relative to the central axis of the adjusting bottom plate, the anti-shake tensioning cylinders are vertically arranged on a rack and are arranged on one side of the front adjusting rotating shaft, which is far away from the axle placing area, and the extending ends of the anti-shake tensioning cylinders are connected with the adjusting bottom plate through adjusting components;

7. The universal axle automatic test stand of claim 1, wherein: the universal axle automatic test bed also comprises a protection mechanism, wherein the protection mechanism comprises a test transmission area protection plate, an axle placing area fence, a rear transmission shield, a rear section protection sheet and a front transmission shield;