CN105136564A - Forklift steering frame strength testing tool - Google Patents
Forklift steering frame strength testing tool Download PDFInfo
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- CN105136564A CN105136564A CN201510521303.2A CN201510521303A CN105136564A CN 105136564 A CN105136564 A CN 105136564A CN 201510521303 A CN201510521303 A CN 201510521303A CN 105136564 A CN105136564 A CN 105136564A
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- top board
- web joint
- base plate
- hole
- steeraxle
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Abstract
The invention relates to a forklift steering frame strength testing tool. The tool comprises a first supporting seat arranged at shaft ends at two sides of a steering frame and used for supporting two ends of the steering frame, a second supporting seat arranged in the middle of the first supporting seat and used for supporting the middle position of the steering frame in an auxiliary manner, and a switching device arranged above the steering frame and used for connecting the steering frame and a power output device. By adopting the above technical scheme, the test axle wheel tread and angle real-time compensation is realized through the first supporting seat, and the practical bearing state of the axle is accurately simulated; the safety protection problem of the forklift steering frame in the test process is solved through the second supporting seat; and transverse change of the position of a pressure head is realized through the switching device, so the revolution center line of the pressure head and the revolution center line of the steering frame are positioned in a same plumb plane is guaranteed, the transverse offset load phenomenon in the loading process is avoided, test requirements are met, and a force application mode changes from two points to a single point, so the test precision is effectively guaranteed.
Description
Technical field
The present invention relates to fork truck field, be specifically related to a kind of forklift steering bridge strength test frock.
Background technology
Forklift steering bridge is as one of the main stressed member of fork truck, and whether its intensity meets the demands is directly connected to the reliability and security of fork truck.Easily there is permanent strain when its intensity is not enough in forklift steering bridge, causes tire premature wear, steering cylinder leakage of oil, turns to the situation generations such as malfunctioning, pontic fracture can occur time serious, cause security incident.Therefore, testing inspection is carried out to the intensity of forklift steering bridge and seem particularly important.
Mainly there is following weak point in the domestic strength test device to forklift steering bridge at present: 1) steeraxle center of gravity does not overlap with the centre of gyration of deflecting roller, exists and lay particular stress on phenomenon, easily tumble, cause the accident, there is potential safety hazard during press-bending.2) switching device many employings two point form switching device, easily produces " seesaw " effect, and the simulation of its virtual condition is difficult to meet the requirement of standard to test, causes the position of stress point and testing requirements and real vehicle situation to be misfitted.3) easily there is horizontal and axial skew accumulation in steeraxle in strength test process, causes pontic to depart from the change of bracing or strutting arrangement and Impact direction, and time serious, meeting damage equipment, causes the accident.
Summary of the invention
The object of the present invention is to provide a kind of forklift steering bridge strength test frock, this frock can go out the actual forced status of vehicle bridge by accurate simulation, avoids horizontal unbalance loading phenomenon in loading procedure, effectively ensure that test accuracy.
For achieving the above object, present invention employs following technical scheme: comprise be separately positioned on steeraxle both sides axle head be used for supporting steeraxle two ends the first supporting seat, be arranged on first be used in the middle of supporting seat supplemental support steeraxle middle part the second supporting seat and be arranged on the switching device being used for connecting steeraxle and PTO above steeraxle;
The first described supporting seat comprises the load bearing be connected with equipment platform and the axle head stop means be fixed on above load bearing, described load bearing settlement is in the axle head position, both sides of steeraxle, described axle head stop means comprises position-limited box, be placed in position-limited box in and the rolling body that can roll in position-limited box, for connecting the axle head sleeve of steeraxle axle head and connecting the web joint of axle head sleeve and rolling body, described steeraxle realizes by axle head stop means the real-Time Compensation that the real-Time Compensation of length variations and angle change under the effect of test load;
The second described supporting seat comprises the stake body be connected with equipment platform and the auxiliary support frame be arranged on stake body, described auxiliary support frame is provided with the adjustment screw for supporting steeraxle middle part, described stake body is provided with the Guide column component supporting switching device, and described switching device is used for connecting power take-off unit and steeraxle.
Described switching device comprises the crossbeam assembly being placed in and being connected above steeraxle and with steeraxle, the top of crossbeam assembly is provided with the pressure head be connected with Power output head, the below of crossbeam assembly is provided with the Hough of connecting cross beam assembly and steeraxle, described crossbeam assembly is also provided with the longitudinal direction making plane on crossbeam assembly lower plane and steeraxle be in parastate to adjust screw and regulate the transverse direction of Hough and the horizontal relative position of pressure head to adjust screw, by the adjustment laterally adjusting screw, the centre of gyration of the centre of gyration of pressure head and steeraxle axle head is in same vertical guide.
Described position-limited box is the quadrangle box of uncovered shape, be welded by the first base plate, front side board, back side panel, left plate, right plate, described front side board, back side panel, left plate and right plate are respectively equipped with two the first threaded holes, the position of the adjustable rolling body of adjusting bolt in position-limited box arranged in first threaded hole, the first described base plate is provided with the first countersunk screw hole for connecting T-shaped bolt.
Described rolling body comprises the sleeve of open column shape, rotating shaft is provided with in described sleeve, described rotating shaft is fixed in sleeve by the bearing at two ends, and the two ends of sleeve are provided with the bearing cap matched with bearing, described web joint comprises the sleeve connection plate be connected with axle head sleeve and the rotating shaft web joint be connected with rotating shaft, axle head sleeve and sleeve connection plate, link position between sleeve connection plate and rotating shaft web joint is adjustable, the front end of described rotating shaft web joint is provided with the first party v notch v for dodging steeraxle, the front end of described sleeve connection plate is provided with the second party v notch v for dodging steeraxle, on the outer tube wall of described sleeve, cutting forms the third party's v notch v holding rotating shaft web joint downwards, the groove formed for installing rotating shaft web joint is cut in the centre position of described rotating shaft downwards, the bottom land of groove is a plane, and this plane is provided with the second threaded hole be connected with rotating shaft web joint.
The lower face of described rotating shaft web joint is provided with the first rectangular boss with the fit depressions of rotating shaft, rotating shaft web joint is provided with the second countersunk screw hole of connection rotating shaft, the position of the second countersunk screw hole and the position of the second threaded hole match, described rotating shaft web joint is also provided with the 3rd threaded hole be connected with sleeve connection plate, the 3rd described threaded hole equidistantly distributes, described axle head sleeve is an eccentric cylindrical shell, the position that described axle head sleeve is connected with sleeve connection plate is a plane, this plane is provided with the 4th threaded hole be connected with sleeve connection plate, the upper surface of described sleeve connection plate is provided with the second rectangular boss be connected with axle head sleeve, described sleeve connection plate is provided with the 3rd countersunk screw hole be connected with the 4th threaded hole, described sleeve connection plate is also provided with the 4th countersunk screw hole be connected with the 3rd threaded hole.
Described load bearing comprises the top board and base plate that above-below direction is arranged in parallel, be provided with along vertically disposed two piece of first side plate of top board Width between described top board and base plate, two piece of second side plate arranged along top board length direction is provided with between two piece of first described side plate, the outer plate surface of two piece of first described side plate is connected the first side plate with being provided with between top board and base plate, the gusset of top board and base plate, the upper face of described top board is provided with the T-slot being used for fixing axle head stop means, two piece of first described side plate and two piece of second side plate are respectively equipped with the hole for hoist being convenient to the lifting of load bearing, described base plate is provided with lightening hole, four limits of base plate are also provided with the U-type groove be connected with equipment platform.
Described crossbeam assembly comprises the second base plate arranged in horizontal direction, the second described base plate entirety is in cruciform, the long slab different by length and short slab form, described long slab is provided with two blocks of side plates perpendicular to long slab along its length, spacing between two blocks of side plates and the width of long slab match, the top of two blocks of side plates is provided with the second top board of connection two blocks of side plates, and described pressure head is fixed on the second top board.
The first gusset of both connections is provided with between two blocks of described side plates, first gusset is positioned at the centre position of two blocks of side plates and the first gusset is provided with the 5th lightening hole, the both sides of the first gusset are respectively equipped with the spiral shell plate of fixed lateral adjustment screw, spiral shell plate parallels setting with the first gusset, described transverse direction adjustment screw vertically runs through spiral shell plate and arranges, described long slab is provided with two groups of kidney slots, two groups of described kidney slots are separately positioned on the both sides of the first gusset, the flute length direction of kidney slot and the length direction of long slab match, and often group kidney slot be arranged three in parallel, four the 5th threaded holes are also provided with between two groups of kidney slots, described side plate entirety is in trapezoidal, two blocks of described side plates are respectively equipped with the first hole for hoist, the outer plate surface of two blocks of described side plates be provided with the 3rd gusset both being connected between short slab.
The center of described second top board is provided with through hole, the periphery of through hole is provided with threaded mounting hole, described pressure head comprises a column, the upper and lower surface of column is respectively equipped with the first boss and the second boss, the center of the first boss is provided with the ball-and-socket shape power input interface matched with unit head shape, the second described boss matches with the through hole of the second top board, and the periphery of column arranges the countersunk screw hole matched with threaded mounting hole.
The two ends of described short slab are respectively equipped with the second kidney slot of fixing longitudinally adjustment screw, the direction that the setting direction of the second kidney slot and kidney slot are arranged matches, described Hough is connected with the second base plate by web joint assembly, described web joint assembly is by the first web joint be arranged on above the second base plate, be arranged on the second web joint below the second base plate, and to be connected with the second web joint and through the second base plate and the first web joint and with laterally adjust screw and form and form against the gag lever post coordinated, the first described web joint is connected by bolt with the second web joint.
The first described web joint and the second web joint are rectangular steel plates, the center of the second web joint is provided with the stepped hole connecting gag lever post, second web joint is also provided with the threaded hole be connected with the first web joint and the 5th countersunk screw hole be connected with Hough, the center of the first web joint is provided with the first through hole be convenient to gag lever post and passed through, first web joint is also provided with the bolt connecting hole corresponding with the second web joint upper screwed hole position, described gag lever post is two-part Step Shaft, comprise the first diameter segment of fixing with the second web joint and through the second base plate and the first web joint and with laterally adjust screw and form Second bobbin diameter section against coordinating, the diameter of described Second bobbin diameter section is greater than the first diameter segment, and Second bobbin diameter section is provided with the axle body that the cross section of matching with kidney slot is kidney-shaped, described Hough arranges two, be used for respectively connecting two axle heads being connected with vehicle frame of steeraxle, Hough comprises upper Hough by cooperatively interacting and lower Hough, described upper Hough is connected with the second web joint by bolt, described lower Hough is connected with upper Hough by bolt.
Described stake body comprises horizontally disposed 3rd top board and the 3rd base plate in above-below direction, the 3rd described top board and two piece of the 3rd side plate being provided with vertical connection both between the 3rd base plate, the 3rd described side plate is arranged along the length direction of the 3rd top board, four piece of the 4th gusset is provided with successively between two piece of the 3rd described side plate, the outer panel face of described two piece of the 3rd side plate, be provided with between 3rd base plate with the 3rd top board and be connected the 3rd side plate, 5th gusset of the 3rd base plate and the 3rd top board, described Guide column component is separately positioned on two ends of the 3rd top board length direction.
Described auxiliary support frame comprises horizontally disposed 4th top board and the 4th base plate in above-below direction, the 4th described top board and the two pieces of risers being provided with vertical connection both between the 4th base plate, described riser is arranged along the Width of the 4th top board, the 4th described base plate is fixed on the 3rd top board, described adjustment screw is arranged on the 4th top board, the 4th described top board is provided with the 3rd kidney slot of fixed adjustment screw, the flute length direction of described 3rd kidney slot and the length direction of the 4th top board match, the 3rd described kidney slot arranges eight altogether, the 3rd described top board is provided with two the first T-slot for connecting auxiliary support frame, the first described T-slot is arranged along the length direction of the 3rd top board, the 4th described base plate is provided with the second U-type groove be connected by bolt with the first T-slot, the 3rd described base plate is provided with the first U-type groove for connection device platform, the 3rd described base plate is provided with the first lightening hole, the center of described 3rd top board is provided with the second lightening hole, the center of described 4th base plate is provided with the 3rd lightening hole, the 3rd described side plate is provided with the 4th lightening hole, the upper face of described 4th gusset is provided with the U-shaped breach for dodging Guide column component.
Described Guide column component comprises the guide pillar arranged in vertical, the guide pin bushing matched with guide pillar and be arranged on the supporting screw of guide pillar upper end, described guide pillar comprises guide pillar body and is arranged on the nut of guide pillar body upper end, described guide pillar body is through guide pin bushing and the 3rd top board, described guide pillar body is Step Shaft, comprise the enlarged diameter section being positioned at top and the reduced diameter section being positioned at below, described reduced diameter section is provided with screw thread, described enlarged diameter section is arranged with spring, one end of spring is resisted against on nut, the other end of spring is resisted against guide pin bushing upper end, the enlarged diameter section that described guide pillar body is positioned at guide pin bushing is provided with the lining matched with guide pin bushing inwall, the top of described guide pillar is provided with the 6th threaded hole matched with supporting screw.
Described guide pin bushing comprises and the sleeve of guide pillar mates and the ring flange being arranged on sleeve lower end, the inwall at sleeve two ends is provided with the lining mounting groove for mounting bush, ring flange is connected by screw with the 3rd top board, the 3rd described top board is provided with the circular hole matched with guide pin bushing, four the 7th threaded holes being circumferentially with fixing guide pin bushing of described circular hole.
As shown from the above technical solution, axle head sleeve is connected with rolling body by the web joint of the first supporting seat by the present invention, by the rolling of rolling body in position-limited box, can realize the real-Time Compensation testing vehicle bridge wheelspan and angle, accurate simulation goes out the actual forced status of vehicle bridge; Realize supporting to the middle part of steeraxle by the auxiliary support frame of the second supporting seat, realize supporting to switching device by the Guide column component on stake body, thus solve the security protection problem of forklift steering bridge in process of the test; By the longitudinal direction adjustment screw of switching device, the lower plane of crossbeam assembly is adjusted to and parallel plane position on forklift steering bridge, laterally adjustment screw is utilized to regulate the position of crossbeam assembly, thus realize the horizontal change of ram position, ensure that the centre of gyration line of pressure head and the centre of gyration line of steeraxle are in same vertical plane, avoid horizontal unbalance loading phenomenon in loading procedure, meet testing requirements, force mechanism changes single-point into by 2, effectively ensure that test accuracy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of the present invention first supporting seat axle head stop means;
Fig. 3 is the structural representation of the present invention first supporting seat position-limited box;
Fig. 4 is the structural representation of the present invention first supporting seat rolling body;
Fig. 5 is the structural representation of the present invention first supporting seat sleeve;
Fig. 6 is the structural representation of the present invention first supporting seat rotating shaft;
Fig. 7 is the structural representation of the present invention first supporting seat rotating shaft web joint;
Fig. 8 is the structural representation of the present invention first supporting seat sleeve connection plate;
Fig. 9 is the structural representation of the present invention first supporting seat axle head sleeve;
Figure 10 is the structural representation of the present invention first supporting seat load bearing;
Figure 11 is the perspective view of switching device of the present invention;
Figure 12 is the front view of switching device of the present invention;
Figure 13 is the vertical view of Fig. 2;
Figure 14 is the structural representation of switching device crossbeam assembly of the present invention;
Figure 15 is the structural representation of switching device base plate of the present invention;
Figure 16 is the perspective view of switching device pressure head of the present invention;
Figure 17 is the sectional view of switching device pressure head of the present invention;
Figure 18 is the structural representation of switching device first web joint of the present invention;
Figure 19 is the structural representation of switching device second web joint of the present invention;
Figure 20 is the structural representation of switching device gag lever post of the present invention;
Figure 21 is the fit structure schematic diagram of switching device second web joint of the present invention and gag lever post;
Figure 22 is the structural representation of Hough on switching device of the present invention;
Figure 23 is the structural representation of Hough under switching device of the present invention;
Figure 24 is the structural representation of the present invention second supporting seat;
Figure 25 is the sectional view of the present invention second supporting seat;
Figure 26 is the structural representation of the present invention second supporting seat stake body;
Figure 27 is the structural representation of the present invention second supporting seat auxiliary support frame;
Figure 28 is the structural representation of the present invention second supporting seat guide pillar;
Figure 29 is the structural representation of the present invention second supporting seat guide pin bushing.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described:
A kind of forklift steering bridge strength test frock as shown in Figure 1, comprise be separately positioned on steeraxle 1 both sides axle head be used for supporting steeraxle two ends the first supporting seat, be arranged on first be used in the middle of supporting seat supplemental support steeraxle 1 middle part the second supporting seat and be arranged on the switching device being used for connecting steeraxle 1 and PTO above steeraxle 1.
As shown in Figure 2, first supporting seat comprises the load bearing be connected with equipment platform and the axle head stop means be fixed on above load bearing, load bearing 100 is arranged on the axle head position, both sides of steeraxle 1, axle head stop means 200 comprises position-limited box 210, to be placed in position-limited box 210 and the rolling body 220 that can roll in position-limited box 210, for connecting the axle head sleeve 230 of steeraxle 1 axle head and connecting the web joint 240 of axle head sleeve 230 and rolling body 220, steeraxle 1 realizes the real-Time Compensation of length variations and the real-Time Compensation of angle change by axle head stop means 200 under the effect of test load, the rolling body 220 be namely connected with vehicle bridge 2 can roll in position-limited box 210.Steeraxle is generally provided with four axle heads, and two axle heads are connected with vehicle frame, and another two axle heads are connected with tire, and axle head sleeve 230 is here used to connect two axle heads be connected with tire.
Further, as shown in Figure 3, position-limited box 210 is the quadrangle box of uncovered shape, be welded by the first base plate 211, front side board 212, back side panel 213, left plate 214, right plate 215, front side board 212, back side panel 213, left plate 214 and right plate 215 are respectively equipped with two the first threaded holes 216, the adjustable position of rolling body 220 in position-limited box 210 of adjusting bolt arranged in first threaded hole 216, meanwhile, the first threaded hole 216 can also be convenient to lifting; First base plate 211 is provided with the first countersunk screw hole 218 for connecting T-shaped bolt 217, first countersunk screw hole 218 arranges two rows, utilize sunk screw by the first base plate by T-shaped bolt presses to the upper surface of load bearing 100, and sunk screw does not exceed the upper surface of the first base plate 211 after installing, do not affect the free movement of rolling body 220 in position-limited box 210; The lower surface of the first base plate 211 adopts the mode of machining to process, and ensures its flatness, thus guarantees the reliable connection of itself and load bearing 100 upper surface.
Further, as shown in Figure 4, rolling body 220 comprises the sleeve 221 of open column shape, is provided with rotating shaft 222 in sleeve 221, and rotating shaft 222 is fixed in sleeve 221 by the bearing 223 at two ends, and the two ends of sleeve 221 are provided with the bearing cap 224 matched with bearing 223.Bearing 223 is installed on the two ends of rotating shaft 222 and is placed on the inside of sleeve 221, and bearing cap 224 utilizes sunk screw to be fixed on the two ends of sleeve 221, carries out axial limiting, prevent the axial float of rotating shaft 222 to bearing 223.Preferably, bearing 223 adopts cylinder roller bearing, can bear larger radial force, meets the requirement of the vertical bending test of forklift axle.
As Fig. 7, shown in Fig. 8, web joint 240 comprises the sleeve connection plate 241 be connected with axle head sleeve 230 and the rotating shaft web joint 242 be connected with rotating shaft 222, axle head sleeve 230 and sleeve connection plate 241, link position between sleeve connection plate 241 and rotating shaft web joint 242 is adjustable, the front end of rotating shaft web joint 242 is provided with the first party v notch v 243 for dodging steeraxle 1, the front end of sleeve connection plate 241 is provided with the second party v notch v 244 for dodging steeraxle, first party v notch v 243 and second party v notch v 244 are to dodge vehicle bridge, avoid producing when installing and test interfering.
As shown in Figure 5, on the outer tube wall of sleeve 221, cutting forms the third party's v notch v 225 holding rotating shaft web joint 242 downwards, the periphery of namely sleeve 221 processes square breach by the physical dimension of rotating shaft web joint 242, the two ends of sleeve 221 endoporus process bearing mounting groove, sleeve 221 two end faces process threaded hole, are convenient to the connection of bearing cap 224; As shown in Figure 6, the groove 226 formed for installing rotating shaft web joint 242 is cut in the centre position of rotating shaft 222 downwards, and the bottom land of groove 226 is a plane, and this plane is provided with the second threaded hole 227 be connected with rotating shaft web joint 242.
Further, the lower face of rotating shaft web joint 242 is provided with the first rectangular boss 2421 matched with the groove 226 of rotating shaft 222, rotating shaft web joint 242 is provided with the second countersunk screw hole 245 of connection rotating shaft 222, the position of the second countersunk screw hole 245 and the position of the second threaded hole 227 match, rotating shaft web joint 242 is also provided with the 3rd threaded hole 246 be connected with sleeve connection plate 241,3rd threaded hole 246 equidistantly distributes, and is convenient to the multistage adjustment of different wheelspan vehicle bridge test.
As shown in Figure 9, axle head sleeve 230 is an eccentric cylindrical shell, the position that axle head sleeve 230 is connected with sleeve connection plate 241 is a plane 231, and the axial location that this plane is provided with the 4th threaded hole the 232, four threaded hole 232 be connected with sleeve connection plate 241 is determined according to deflecting roller wheelspan.
The upper surface of sleeve connection plate 241 is provided with the second rectangular boss 247 be connected with axle head sleeve 230, sleeve connection plate 241 is provided with the 3rd countersunk screw hole 248 be connected with the 4th threaded hole 232, sleeve connection plate 241 is also provided with the 4th countersunk screw hole 249 be connected with the 3rd threaded hole 246,4th countersunk screw hole 249 is also spaced set, is convenient to the multistage adjustment of different wheelspan vehicle bridge test.
Further, as shown in Figure 10, load bearing 100 comprises the top board 110 and base plate 120 that above-below direction is arranged in parallel, be provided with along vertically disposed two piece of first side plate 130 of top board 110 Width between top board 110 and base plate 120, be provided with between two piece of first side plate 130 along top board 110 length direction arrange two piece of second side plate, 140, two piece of first side plate 130 outer plate surface be provided with the gusset 150 being connected the first side plate 130, top board 110 and base plate 120 between top board 110 and base plate 120.The mode that load bearing 100 adopts postwelding to process is carried out, and to eliminate welding stress, prevents the later stage to fail the distortion caused because of the welding stress in use procedure, thus affects the normal use of load bearing 100.Meanwhile, the upper and lower surface of load bearing 100 all carries out machining, ensures the depth of parallelism of its upper and lower surface.
The upper face of top board 110 is provided with the T-slot 111 being used for fixing axle head stop means 200, and T-slot 111 arranges two, is convenient to adopt T-shaped bolt 217 to connect axle head stop means 200; Two piece of first side plate 130 and two piece of second side plate 140 are respectively equipped with the hole for hoist 160 be convenient to load bearing 100 and lifted, and base plate 120 is provided with lightening hole, and four limits of base plate 120 are also provided with the U-type groove 121 be connected with equipment platform.
The installation process of above-mentioned first supporting seat is as follows:
Two load bearings are arranged on equipment platform according to vehicle bridge track width dimensions; Two position-limited box are positioned on load bearing, T-shaped bolt is inserted in the T-slot that load bearing is corresponding, the position of adjustment position-limited box, to track width dimensions, adopts socket head cap screw through position-limited box and screws in T-shaped bolt, thus position-limited box being fastened to the upper plane of load bearing;
According to different types of vehicle bridge, select two corresponding axle head sleeves to be mounted to the both sides axle head of vehicle bridge, the plane that axle head sleeve processes straight down, be consistent, and axle head sleeve is locked by the nut adopting vehicle bridge to carry with test vehicle bridge Impact direction;
Different according to wheelspan, select the 3rd countersunk screw hole corresponding on sleeve connection plate, adopt socket head cap screw to be mounted on axle head sleeve by sleeve connection plate;
Different according to wheelspan, select the 3rd threaded hole corresponding on rolling body, rolling body is mounted on sleeve connection, makes vehicle bridge and rolling body form an entirety;
Hoisting test vehicle bridge, is placed in rolling body in position-limited box;
Adjusting bolt in adjustment position-limited box front side board, back side panel, left plate and right plate first threaded hole, promote the side-to-side movement of test vehicle bridge, the design center of effort of vehicle bridge and equipment dynamic output center are coincide, then according to axle shaft to length variations amount, gap between adjustment adjusting bolt and excircle of sleeve face, makes it in process of the test, not interfere pontic wheelspan to change and is as the criterion; Adjusting bolt on the forward and backward side plate of adjustment position-limited box, the gap of monolateral reservation about 0.5 ~ 1mm, completes the installation of test vehicle bridge.
The principle of work of the first supporting seat is as follows:
When testing the stressed flexural deformation of vehicle bridge, wheelspan diminishes, and because the adjusting bolt on position-limited box left and right side plate all and between sleeve exists suitable gap, makes sleeve can clog-free horizontal rolling vertically, realizes the real-Time Compensation of wheelspan change;
When testing vehicle bridge and being stressed, entirety bends, and shape has a certain degree by its axle head and surface level, and now, rotating shaft is carried out accessiblely turning to corresponding angle around spindle central together with rotating shaft web joint, thus realizes the real-Time Compensation that angle changes;
When test vehicle bridge makes a strength test especially torture test, owing to test vehicle bridge cannot be adjusted to the position be absolutely correct, each stressed time, vehicle bridge all can produce the lateral excursion of trace, when skew is accumulate to a certain amount of, adjusting bolt before and after position-limited box on side plate is by the continuation transverse shifting of restriction rolling body, thus the transversal displacement of restriction vehicle bridge continues accumulation; Each stressed time, vehicle bridge also can produce the axial dipole field of trace simultaneously, when skew is accumulate to a certain amount of, the adjusting bolt on position-limited box left side plate by restriction rolling body continue move axially, thus the axial displacement of restriction vehicle bridge continues accumulation.
Further, as Figure 11, Figure 12, shown in Figure 13, switching device comprises the crossbeam assembly 600 being placed in and being connected above steeraxle 1 and with steeraxle 1, the top of crossbeam assembly 600 is provided with the pressure head 700 be connected with Power output head, the below of crossbeam assembly 600 is provided with the Hough 800 of connecting cross beam assembly 600 and steeraxle 1, crossbeam assembly 600 is also provided with the longitudinal direction making plane on crossbeam assembly 600 lower plane and steeraxle 1 be in parastate to adjust screw 910 and regulate Hough 800 to adjust screw 920 with the transverse direction of the horizontal relative position of pressure head 700, by the adjustment laterally adjusting screw 920, the centre of gyration of the centre of gyration of pressure head 700 and steeraxle 1 axle head is in same vertical guide.
Further, as shown in Figure 14, Figure 15, crossbeam assembly 600 comprises the second base plate 610 arranged in horizontal direction, second base plate 610 entirety is in cruciform, be made up of the different long slab of length 611 and short slab 612, the spacing between long slab 611 is provided with along its length perpendicular to two blocks of side plates, 620, two blocks of side plates 620 of long slab 611 and the width of long slab 611 match, the top of two blocks of side plates 620 is provided with the second top board 630 of connection two blocks of side plates 620, and pressure head 700 is fixed on the second top board 630.It should be noted that base plate 610 is one block of criss-cross whole plate, be just split as long slab 611 and short slab 612 structure for convenience of explanation, be intended to illustrate that base plate 610 is for asymmetrical cross plate.
Further, the first gusset 640 of both connections is provided with between two blocks of side plates 620, first gusset 640 is positioned at the centre position of two blocks of side plates 620 and the first gusset 640 is provided with the 5th lightening hole 641, the both sides of the first gusset 640 are respectively equipped with the spiral shell plate 650 of fixed lateral adjustment screw 920, spiral shell plate 650 parallels setting with the first gusset 640, horizontal adjustment screw 920 vertically runs through spiral shell plate 650 and arranges, long slab 611 is provided with two groups of kidney slots 613, two groups of kidney slots 613 are separately positioned on the both sides of the first gusset 640, the flute length direction of kidney slot 613 and the length direction of long slab 611 match, and often group kidney slot 613 be arranged three in parallel, four the 5th threaded holes 615 are also provided with between two groups of kidney slots 613.
Side plate 620 entirety in trapezoidal, the outer plate surface two blocks of side plates 620 being respectively equipped with the first hole for hoist 621, two blocks of side plates 620 be provided with the 3rd gusset 660 both being connected between short slab 612.
Further, the center of the second top board 630 is provided with through hole 631, the periphery of through hole 631 is provided with threaded mounting hole 632, as shown in Figure 16, Figure 17, pressure head 700 comprises a column 710, the upper and lower surface of column 710 is respectively equipped with the first boss 720 and the second boss 730, the center of the first boss 720 is provided with the ball-and-socket shape power input interface 721 matched with unit head shape, second boss 730 matches with the through hole 631 of the second top board 630, and the periphery of column 710 arranges the countersunk screw hole 711 matched with threaded mounting hole 632.
Further, the two ends of short slab 612 are respectively equipped with the direction that the setting direction of the second kidney slot 614, second kidney slot 614 of fixing longitudinally adjustment screw 910 and kidney slot 613 arrange and match.
Hough 800 is connected with the second base plate 610 by web joint assembly, as shown in Figure 18, Figure 19, web joint assembly by the first web joint 830 be arranged on above the second base plate 610, be arranged on the second web joint 840 below the second base plate 610 and be connected with the second web joint 840 and through the second base plate 610 and the first web joint 830 and with laterally adjust the gag lever post 850 that screw 920 forms against coordinating and form, the first web joint 830 is connected by bolt with the second web joint 840.
Further, first web joint 830 and the second web joint 840 are rectangular steel plates, the center of the second web joint 840 is provided with the stepped hole 841 connecting gag lever post 850, second web joint 840 is also provided with the threaded hole 842 be connected with the first web joint 830 and the 5th countersunk screw hole 843 be connected with Hough 800, the center of the first web joint 830 is provided with to be convenient to the first through hole 831, first web joint 830 that gag lever post 850 passes through also is provided with the bolt connecting hole 832 corresponding with the second web joint 840 upper screwed hole 842 position.
As Figure 20, shown in Figure 21, gag lever post 850 is two-part Step Shaft, comprise the first diameter segment 851 of fixing with the second web joint 840 and through the second base plate 610 and the first web joint 830 and with laterally adjust screw 920 and form Second bobbin diameter section 852 against coordinating, the diameter of Second bobbin diameter section 852 is greater than the first diameter segment 851, and Second bobbin diameter section 852 is provided with the axle body 853 that the cross section of matching with kidney slot 613 is kidney-shaped, outer peripheral face namely along Second bobbin diameter section 852 forms two planes respectively to internal cutting, two planes and original arc-shaped circumference form the axle body of a kidney-shaped, the kidney slot be used for by base plate is arranged, realize the object of accurate guide and limit.
As shown in Figure 22, Figure 23, Hough 800 arranges two, be used for respectively connecting two axle heads being connected with vehicle frame of steeraxle 1, steeraxle is generally provided with four axle heads, two axle heads are connected with vehicle frame, another two axle heads are connected with tire, and Hough is here fixing two axle heads be connected with vehicle frame mainly.Hough 800 comprises upper Hough 810 by cooperatively interacting and lower Hough 820, and upper Hough 810 is connected with the second web joint 840 by bolt, and lower Hough 820 is connected with upper Hough 810 by bolt.
Installation process and the principle of work of above-mentioned switching device are as follows:
1, the installation of forklift steering bridge: select corresponding upper Hough and lower Hough, upper Hough is connected on switching device, then overall being sling by switching device is placed on forklift steering bridge, utilizes bolt to be connected with upper Hough by lower Hough; Utilize and longitudinally adjust screw, the lower plane of crossbeam assembly is adjusted to and parallel plane position on forklift steering bridge, now unclamp the trip bolt on the first web joint, laterally adjustment screw is utilized to regulate the position of crossbeam assembly, thus realize the horizontal change of ram position, ensure that the centre of gyration line of pressure head and the centre of gyration line of steeraxle are in same vertical plane; Then the trip bolt on fastening first web joint, unclamps and longitudinally adjusts screw, makes longitudinally to adjust plane on its end of screw and forklift steering bridge and keeps suitable distance, can complete the installation of forklift steering bridge on switching device.
2, the adaptation of different forklift steering bridge lateral dimension: the horizontal relative position regulating left Hough and right Hough and pressure head, ensure that the axle head centre of gyration of pressure head and steeraxle is in same vertical guide, avoid horizontal unbalance loading phenomenon in loading procedure, meet testing requirements.
3, the adaptation of different steeraxle load axle head size: by changing corresponding upper Hough and lower Hough, the load axle head size of different forklift steering bridge can be met.
4, steeraxle test: pressure puts on pressure head by equipment dynamic delivery, through this switching device, automatically pressure is pro rata distributed on the stressed axle head of steeraxle both sides, ratio and the car load force-bearing situation of the stressed size of forklift steering bridge both sides load axle head fit like a glove, take single-point type force way, test force and travel parameters easy to adjust, in process of the test, only need to carry out adjustment to the parameter of single-point can meet testing requirements.
5, the raising of test accuracy: this apparatus structure rigidity is high, the distortion in process of the test can not produce any impact to test findings; Single-point exerts a force without unbalance loading, guarantees that applied test force can be assigned on the load axle of steeraxle both sides accurately, and force will be caused incorrect because of " seesaw " effect, thus improves measuring accuracy.
6, the raising of security: adopt the present invention, because of without the impact of horizontal unbalance loading on process of the test, eliminate the hidden danger of tumbling because unbalance loading causes forklift steering bridge in process of the test; Because affecting without longitudinal unbalance loading, avoiding steeraxle axle head and departing from the danger supported.
As shown in Figure 24, Figure 25, second supporting seat comprises the stake body 300 be connected with equipment platform and the auxiliary support frame 400 be arranged on stake body 300, auxiliary support frame 400 is provided with the adjustment screw 440 for supporting steeraxle 1 middle part, stake body 300 is provided with the Guide column component 500 supporting switching device, and switching device is used for connecting power take-off unit and steeraxle 1.
Further, as shown in figure 26, stake body 300 comprises horizontally disposed 3rd top board 310 and the 3rd base plate 320 in above-below direction, two piece of the 3rd side plate 330 of vertical connection both is provided with between 3rd top board 310 with the 3rd base plate 320, 3rd side plate 330 is arranged along the length direction of the 3rd top board 310, four piece of the 4th gusset 340 is provided with successively between two piece of the 3rd side plate 330, the outer panel face of two piece of the 3rd side plate 330, be provided with between 3rd base plate 320 with the 3rd top board 310 and be connected the 3rd side plate 330, 5th gusset 350 of the 3rd base plate 320 and the 3rd top board 310, Guide column component is separately positioned on two ends of the 3rd top board 310 length direction.
Further, as shown in figure 27, auxiliary support frame 400 comprises horizontally disposed 4th top board 410 and the 4th base plate 420 in above-below direction, two pieces of risers 430 of vertical connection both are provided with between 4th top board 410 with the 4th base plate 420, riser 430 is arranged along the Width of the 4th top board 410,4th base plate 420 is fixed on the 3rd top board 310, adjustment screw 440 is arranged on the 4th top board 410, riser 430 is arranged between the 4th top board 410 and the 4th base plate 420, for connecting the 4th top board 410 and the 4th base plate 420 and increasing the height of auxiliary support frame 400.
4th top board 410 is provided with the flute length direction of the 3rd kidney slot the 411, three kidney slot 411 of fixed adjustment screw 440 and the length direction of the 4th top board 410 matches, and the 3rd kidney slot 411 arranges eight altogether.
3rd top board 310 is provided with two the first T-slot 311 for connecting auxiliary support frame 400, first T-slot 311 is arranged along the length direction of the 3rd top board 310,4th base plate 420 is provided with and is provided with the first U-type groove 321 for connection device platform with the first T-slot 311 by the second U-type groove the 421, three base plate 320 that bolt is connected.
3rd base plate 320 is provided with the first lightening hole 322, the center of the 3rd top board 310 is provided with the second lightening hole 312, the center of the 4th base plate 420 is provided with the 3rd lightening hole 422, the upper face that 3rd side plate 330 is provided with the 4th lightening hole the 331, four gusset 340 is provided with the U-shaped breach 341 for dodging Guide column component.
Further, as Figure 28, shown in Figure 29, Guide column component 500 comprises the guide pillar 510 arranged in vertical, the guide pin bushing 520 matched with guide pillar 510 and be arranged on the supporting screw 530 of guide pillar 510 upper end, guide pillar 510 comprises guide pillar body 511 and is arranged on the nut 512 of guide pillar body 511 upper end, guide pillar body 511 is through guide pin bushing 520 and the 3rd top board 310, guide pillar body 511 is Step Shaft, comprise the enlarged diameter section being positioned at top and the reduced diameter section being positioned at below, reduced diameter section is provided with screw thread, enlarged diameter section is arranged with spring 540, one end of spring 540 is resisted against on nut 512, the other end of spring 540 is resisted against guide pin bushing 520 upper end, spring fitting is between guide pillar and guide pin bushing, distortion is not continued to the offset loading force that just can bear steeraxle by both pretensions, the ratio of rigidity of two springs equals the lever ratio of its turning torque, nut 512 is an annular slab, and there is sunk step cutting pattern the side of annular slab, for positioning guide column body, preferably, the periphery of nut 512 processes spanner side's body, is convenient to adjustment and fastening support screw, the enlarged diameter section that guide pillar body 511 is positioned at guide pin bushing 520 is provided with the lining 550 matched with guide pin bushing 520 inwall, preferably, lining 550 adopts brass or nylon material to make, and is a cylinder, for reducing the friction between guide pin bushing 520 and guide pillar 510, increase its serviceable life, the top of guide pillar 510 is provided with the 6th threaded hole 513 matched with supporting screw 530.
Further, guide pin bushing is a weldment, guide pin bushing 520 comprises the sleeve 521 matched with guide pillar body 511 and the ring flange 522 being arranged on sleeve 521 lower end, the inwall at sleeve 521 two ends is provided with the lining mounting groove for mounting bush 550, ring flange 522 is connected by screw with the 3rd top board 310, ring flange 522 is an annular plate, centre is stepped hole, macropore is used for installing sleeve 521, hole diameter is greater than the outside diameter of lining 550, being convenient to lining 550 loads in guide pin bushing 520, the another side of ring flange 522 processes round ring boss, boss periphery processes screw mounting hole, for the connection of guide pin bushing 520 and stake body 300.
3rd top board 310 is provided with the circular hole 313 matched with guide pin bushing 520, four the 7th threaded holes 314 being circumferentially with fixing guide pin bushing 520 of circular hole 313.
Installation process and the principle of work of above-mentioned second supporting seat are as follows:
1, by the installation of test piece: the adjustment screw on adjustment auxiliary support frame, make it use height a little more than reality, ready steeraxle is placed on adjustment head of screw; Reduce adjustment screw height, fall within the bracing or strutting arrangement 3 at two ends under making steeraxle, now, between the end of adjustment screw and steeraxle pontic, retain certain gap, be as the criterion still to reserve about 5 ~ 10mm gap after the stressed elastic deformation of pontic;
2, the adjustment of initial tension of spring: after test trade union college, steeraxle is in free water level state, and the spring that steeraxle lays particular stress on side is compressed, and is as the criterion by decrement with reality, regulates and locks the nut on guide pillar reduced diameter section; Opposite side spring is in non-Pre strained state, and the supporting screw of adjustment guide pillar end, just touches frock with supporting screw head and be as the criterion;
3, equilibrium of forces principle is laid particular stress on: by laying particular stress on side and the non-spring pre-tightening amount laying particular stress on side is arranged, the difference of the pretightning force of two springs is relative to the torque of the pontic axle head centre of gyration, equal the torque relative to the centre of gyration of the weight that lays particular stress on, now steeraxle reaches equilibrium state, and steeraxle keeps balance;
4, the maintenance of equilibrium state during workpiece test: the ratio of rigidity because of two springs equals its lever ratio relative to the steeraxle centre of gyration, when therefore being bent by test specimen, the torque that two springs produce relative to the drive axle centre of gyration is equal, and the stress point of workpiece can keep its original state vertically descending and not rotate;
5, turn to pontic to rupture to protect: during the fracture of steeraxle pontic, its fracture location falls to rapidly supporting screw top and no longer continues to fall, and the Guide column component of supplemental support both sides can effectively stop its rolling to be fallen simultaneously, avoids security incident to occur.
Beneficial effect of the present invention is: the real-Time Compensation 1) achieving wheelspan change and angle change, effectively eliminates the skew that steeraxle is horizontal and axial, avoid the potential safety hazard because displacement causes; 2) switching device possesses enough rigidity, and the force mechanism of switching device changes single-point into by 2, all effectively ensure that test accuracy; Eliminate the horizontal unbalance loading in process of the test and longitudinal unbalance loading simultaneously, eliminate potential safety hazard; 3) test of multiple steeraxle can be met, only need to change corresponding axle head sleeve and corresponding Hough, the test of different steeraxle can be met; 4) position-limited box in the first supporting seat and the installation site of load bearing adjustable, can adapt to different wheelspan vehicle bridge test; 5) rolling body of the first supporting seat and steeraxle are linked to be entirety, and rolling body is placed in position-limited box, and when fracture occurs steeraxle, spindle nose falls to position-limited box upper inside edges just no longer to be continued to fall, and can effectively avoid the accident that tumbles of spindle nose to occur; 6) the second supporting seat solves steeraxle it can not be interfered in process of the test to be out of shape, the contradiction of effectively protection again simultaneously; 7) tool structure of the present invention is simple, and the installation adjustment of steeraxle is very convenient, experimental safe is good, test accuracy is high, and avoid testing crew needs repeatedly to the labour intensity adjusted by test piece in process of the test.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (15)
1. a forklift steering bridge strength test frock, is characterized in that: comprise be separately positioned on steeraxle (1) both sides axle head be used for supporting steeraxle two ends the first supporting seat, be arranged on first be used in the middle of supporting seat supplemental support steeraxle (1) middle part the second supporting seat and be arranged on the switching device that steeraxle (1) top is used for connecting steeraxle (1) and PTO;
The first described supporting seat comprises the load bearing be connected with equipment platform and the axle head stop means be fixed on above load bearing, described load bearing (100) is arranged on the axle head position, both sides of steeraxle (1), described axle head stop means (200) comprises position-limited box (210), to be placed in position-limited box (210) and the rolling body (220) that can roll in position-limited box (210), for connecting the axle head sleeve (230) of steeraxle (1) axle head and connecting the web joint (240) of axle head sleeve (230) and rolling body (220), described steeraxle (1) realizes the real-Time Compensation of length variations and the real-Time Compensation of angle change by axle head stop means (200) under the effect of test load,
The second described supporting seat comprises the stake body (300) be connected with equipment platform and the auxiliary support frame (400) be arranged on stake body (300), described auxiliary support frame (400) is provided with the adjustment screw (440) for supporting steeraxle (1) middle part, described stake body (300) is provided with the Guide column component (500) supporting switching device, and described switching device is used for connecting power take-off unit and steeraxle (1).
2. forklift steering bridge strength test frock according to claim 1, it is characterized in that: described switching device comprise be placed in steeraxle (1) top and the crossbeam assembly (600) be connected with steeraxle (1), the top of crossbeam assembly (600) is provided with the pressure head (700) be connected with Power output head, the below of crossbeam assembly (600) is provided with the Hough (800) of connecting cross beam assembly (600) and steeraxle (1), described crossbeam assembly (600) is also provided with the longitudinal direction making crossbeam assembly (600) lower plane and the upper plane of steeraxle (1) be in parastate to adjust screw (910) and regulate Hough (800) to adjust screw (920) with the transverse direction of pressure head (700) horizontal relative position, by the adjustment laterally adjusting screw (920), the centre of gyration of the centre of gyration of pressure head (700) and steeraxle (1) axle head is in same vertical guide.
3. forklift steering bridge strength test frock according to claim 1, it is characterized in that: the quadrangle box that described position-limited box (210) is uncovered shape, by the first base plate (211), front side board (212), back side panel (213), left plate (214), right plate (215) is welded, described front side board (212), back side panel (213), left plate (214) and right plate (215) are respectively equipped with two the first threaded holes (216), the position of the adjustable rolling body of adjusting bolt (220) in position-limited box (210) arranged in first threaded hole (216), described the first base plate (211) is provided with the first countersunk screw hole (218) for connecting T-shaped bolt (217).
4. forklift steering bridge strength test frock according to claim 1, it is characterized in that: described rolling body (220) comprises the sleeve (221) of open column shape, rotating shaft (222) is provided with in described sleeve (221), described rotating shaft (222) is fixed in sleeve (221) by the bearing (223) at two ends, and the two ends of sleeve (221) are provided with the bearing cap (224) matched with bearing (223), described web joint (240) comprises the sleeve connection plate (241) be connected with axle head sleeve (230) and the rotating shaft web joint (242) be connected with rotating shaft (222), axle head sleeve (230) and sleeve connection plate (241), link position between sleeve connection plate (241) and rotating shaft web joint (242) is adjustable, the front end of described rotating shaft web joint (242) is provided with the first party v notch v (243) for dodging steeraxle (1), the front end of described sleeve connection plate (241) is provided with the second party v notch v (244) for dodging steeraxle, on the outer tube wall of described sleeve (221), cutting forms the third party's v notch v (225) holding rotating shaft web joint (242) downwards, the groove (226) formed for installing rotating shaft web joint (242) is cut in the centre position of described rotating shaft (222) downwards, the bottom land of groove (226) is a plane, and this plane is provided with the second threaded hole (227) be connected with rotating shaft web joint (242).
5. forklift steering bridge strength test frock according to claim 4, it is characterized in that: the lower face of described rotating shaft web joint (242) is provided with the first rectangular boss (2421) matched with the groove of rotating shaft (222) (226), rotating shaft web joint (242) is provided with second countersunk screw hole (245) of connection rotating shaft (222), the position of the second countersunk screw hole (245) and the position of the second threaded hole (227) match, described rotating shaft web joint (242) is also provided with the 3rd threaded hole (246) be connected with sleeve connection plate (241), the 3rd described threaded hole (246) equidistantly distributes, described axle head sleeve (230) is an eccentric cylindrical shell, the position that described axle head sleeve (230) is connected with sleeve connection plate (241) is a plane (231), this plane is provided with the 4th threaded hole (232) be connected with sleeve connection plate (241), the upper surface of described sleeve connection plate (241) is provided with the second rectangular boss (247) be connected with axle head sleeve (230), described sleeve connection plate (241) is provided with the 3rd countersunk screw hole (248) be connected with the 4th threaded hole (232), described sleeve connection plate (241) is also provided with the 4th countersunk screw hole (249) be connected with the 3rd threaded hole (246).
6. forklift steering bridge strength test frock according to claim 1, it is characterized in that: described load bearing (100) comprises the top board (110) and base plate (120) that above-below direction is arranged in parallel, be provided with along vertically disposed two piece of first side plate (130) of top board (110) Width between described top board (110) and base plate (120), two piece of second side plate (140) arranged along top board (110) length direction is provided with between two piece of first described side plate (130), the outer plate surface of two piece of first described side plate (130) is connected the first side plate (130) with being provided with between top board (110) and base plate (120), the gusset (150) of top board (110) and base plate (120), the upper face of described top board (110) is provided with the T-slot (111) being used for fixing axle head stop means (200), two piece of first described side plate (130) and two piece of second side plate (140) are respectively equipped with the hole for hoist (160) be convenient to load bearing (100) and lifted, described base plate (120) is provided with lightening hole, four limits of base plate (120) are also provided with the U-type groove (121) be connected with equipment platform.
7. forklift steering bridge strength test frock according to claim 2, it is characterized in that: described crossbeam assembly (600) comprises the second base plate (610) arranged in horizontal direction, described the second base plate (610) entirety is in cruciform, the long slab (611) different by length forms with short slab (612), described long slab (611) is provided with two pieces of side plates (620) perpendicular to long slab (611) along its length, spacing between two pieces of side plates (620) and the width of long slab (611) match, the top of two pieces of side plates (620) is provided with second top board (630) of connection two pieces of side plates (620), described pressure head (700) is fixed on the second top board (630).
8. forklift steering bridge strength test frock according to claim 7, it is characterized in that: the first gusset (640) being provided with both connections between two pieces of described side plates (620), first gusset (640) is positioned at the centre position of two pieces of side plates (620) and the first gusset (640) is provided with the 5th lightening hole (641), the both sides of the first gusset (640) are respectively equipped with the spiral shell plate (650) of fixed lateral adjustment screw (920), spiral shell plate (650) parallels setting with the first gusset (640), described transverse direction adjustment screw (920) vertically runs through spiral shell plate (650) and arranges, described long slab (611) is provided with two groups of kidney slots (613), two groups of described kidney slots (613) are separately positioned on the both sides of the first gusset (640), the flute length direction of kidney slot (613) and the length direction of long slab (611) match, and often organize kidney slot (613) and be arranged three in parallel, four the 5th threaded holes (615) are also provided with between two groups of kidney slots (613), described side plate (620) entirety is in trapezoidal, two pieces of described side plates (620) are respectively equipped with the first hole for hoist (621), the outer plate surface of two pieces of described side plates (620) be provided with the 3rd gusset (660) both being connected between short slab (612).
9. forklift steering bridge strength test frock according to claim 7, it is characterized in that: the center of described second top board (630) is provided with through hole (631), the periphery of through hole (631) is provided with threaded mounting hole (632), described pressure head (700) comprises a column (710), column (710) upper, lower surface is respectively equipped with the first boss (720) and the second boss (730), the center of the first boss (720) is provided with ball-and-socket shape power input interface (721) matched with unit head shape, described the second boss (730) matches with the through hole (631) of the second top board (630), the periphery of column (710) arranges the countersunk screw hole (711) matched with threaded mounting hole (632).
10. forklift steering bridge strength test frock according to claim 8, it is characterized in that: the two ends of described short slab (612) are respectively equipped with fixing the second kidney slot (614) longitudinally adjusting screw (910), the direction that the setting direction of the second kidney slot (614) and kidney slot (613) are arranged matches, described Hough (800) is connected with the second base plate (610) by web joint assembly, described web joint assembly is by the first web joint (830) being arranged on the second base plate (610) top, be arranged on second web joint (840) of the second base plate (610) below, and to be connected with the second web joint (840) and through the second base plate (610) and the first web joint (830) and with laterally adjust screw (920) and form and form against the gag lever post coordinated (850), described the first web joint (830) is connected by bolt with the second web joint (840).
11. forklift steering bridge strength test frocks according to claim 10, it is characterized in that: described the first web joint (830) and the second web joint (840) are rectangular steel plates, the center of the second web joint (840) is provided with the stepped hole (841) connecting gag lever post (850), second web joint (840) is also provided with the threaded hole (842) be connected with the first web joint (830) and the 5th countersunk screw hole (843) be connected with Hough (800), the center of the first web joint (830) is provided with the first through hole (831) be convenient to gag lever post (850) and passed through, first web joint (830) is also provided with the bolt connecting hole (832) corresponding with the second web joint (840) upper screwed hole (842) position, described gag lever post (850) is two-part Step Shaft, comprise the first diameter segment (851) of fixing with the second web joint (840) and through the second base plate (610) and the first web joint (830) and with laterally adjust screw (920) and form Second bobbin diameter section (852) against coordinating, the diameter of described Second bobbin diameter section (852) is greater than the first diameter segment (851), and Second bobbin diameter section (852) is provided with the axle body (853) that the cross section of matching with kidney slot (613) is kidney-shaped, described Hough (800) arranges two, be used for respectively connecting steeraxle (1) two axle heads being connected with vehicle frame, Hough (800) comprises upper Hough (810) by cooperatively interacting and lower Hough (820), described upper Hough (810) is connected with the second web joint (840) by bolt, described lower Hough (820) is connected with upper Hough (810) by bolt.
12. forklift steering bridge strength test frocks according to claim 1, it is characterized in that: described stake body (300) comprises horizontally disposed 3rd top board (310) and the 3rd base plate (320) in above-below direction, the 3rd described top board (310) and two piece of the 3rd side plate (330) being provided with vertical connection both between the 3rd base plate (320), the 3rd described side plate (330) is arranged along the length direction of the 3rd top board (310), four piece of the 4th gusset (340) is provided with successively between two piece of the 3rd described side plate (330), the outer panel face of described two piece of the 3rd side plate (330), be provided with between 3rd base plate (320) with the 3rd top board (310) and be connected the 3rd side plate (330), 5th gusset (350) of the 3rd base plate (320) and the 3rd top board (310), described Guide column component is separately positioned on two ends of the 3rd top board (310) length direction.
13. forklift steering bridge strength test frocks according to claim 12, it is characterized in that: described auxiliary support frame (400) comprises horizontally disposed 4th top board (410) and the 4th base plate (420) in above-below direction, the 4th described top board (410) and the two pieces of risers (430) being provided with vertical connection both between the 4th base plate (420), described riser (430) is arranged along the Width of the 4th top board (410), the 4th described base plate (420) is fixed on the 3rd top board (310), described adjustment screw (440) is arranged on the 4th top board (410), the 4th described top board (410) is provided with the 3rd kidney slot (411) of fixed adjustment screw (440), the flute length direction of described 3rd kidney slot (411) and the length direction of the 4th top board (410) match, the 3rd described kidney slot (411) arranges eight altogether, the 3rd described top board (310) is provided with two the first T-slot (311) for connecting auxiliary support frame (400), described the first T-slot (311) is arranged along the length direction of the 3rd top board (310), the 4th described base plate (420) is provided with the second U-type groove (421) be connected by bolt with the first T-slot (311), the 3rd described base plate (320) is provided with the first U-type groove (321) for connection device platform, the 3rd described base plate (320) is provided with the first lightening hole (322), the center of described 3rd top board (310) is provided with the second lightening hole (312), the center of described 4th base plate (420) is provided with the 3rd lightening hole (422), the 3rd described side plate (330) is provided with the 4th lightening hole (331), the upper face of described 4th gusset (340) is provided with the U-shaped breach (341) for dodging Guide column component.
14. forklift steering bridge strength test frocks according to claim 12, it is characterized in that: described Guide column component (500) comprises the guide pillar (510) arranged in vertical, the guide pin bushing (520) matched with guide pillar (510) and the supporting screw (530) being arranged on guide pillar (510) upper end, described guide pillar (510) comprises guide pillar body (511) and is arranged on the nut (512) of guide pillar body (511) upper end, described guide pillar body (511) is through guide pin bushing (520) and the 3rd top board (310), described guide pillar body (511) is Step Shaft, comprise the enlarged diameter section being positioned at top and the reduced diameter section being positioned at below, described reduced diameter section is provided with screw thread, described enlarged diameter section is arranged with spring (540), one end of spring (540) is resisted against on nut (512), the other end of spring (540) is resisted against guide pin bushing (520) upper end, the enlarged diameter section that described guide pillar body (511) is positioned at guide pin bushing (520) is provided with the lining (550) matched with guide pin bushing (520) inwall, the top of described guide pillar (510) is provided with the 6th threaded hole (513) matched with supporting screw (530).
15. forklift steering bridge strength test frocks according to claim 14, it is characterized in that: described guide pin bushing (520) comprises the sleeve (521) matched with guide pillar body (511) and the ring flange (522) being arranged on sleeve (521) lower end, the inwall at sleeve (521) two ends is provided with the lining mounting groove for mounting bush (550), ring flange (522) is connected by screw with the 3rd top board (310), the 3rd described top board (310) is provided with the circular hole (313) matched with guide pin bushing (520), four the 7th threaded holes (314) being circumferentially with fixing guide pin bushing (520) of described circular hole (313).
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| CN201510521303.2A CN105136564B (en) | 2015-08-24 | 2015-08-24 | Forklift steering bridge strength test frock |
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| CN201510521303.2A CN105136564B (en) | 2015-08-24 | 2015-08-24 | Forklift steering bridge strength test frock |
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| CN105136564B CN105136564B (en) | 2017-12-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198279A (en) * | 2016-06-24 | 2016-12-07 | 湖北泰和电气有限公司 | A kind of spring catch force measuring machine for quickly detecting ground intensity |
| CN110836765A (en) * | 2019-10-25 | 2020-02-25 | 安徽合力股份有限公司 | Test device for fatigue strength of forklift frame |
| CN113310827A (en) * | 2021-05-27 | 2021-08-27 | 一汽解放汽车有限公司 | Multidirectional loading test device for driving axle housing of commercial vehicle |
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| CN201697795U (en) * | 2010-05-15 | 2011-01-05 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Axle housing double-side perpendicular independent loading test device |
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| CN103196754A (en) * | 2013-03-18 | 2013-07-10 | 中国长安汽车集团股份有限公司四川建安车桥分公司 | Bending test device for semi-floating drive axle, and test method of same |
| CN204903279U (en) * | 2015-08-24 | 2015-12-23 | 安徽合力股份有限公司 | Forklift steering bridge pressure test frock |
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| KR20120063971A (en) * | 2010-12-08 | 2012-06-18 | 현대위아 주식회사 | Jig for testing axle housing for vehicle |
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| CN202836980U (en) * | 2012-07-27 | 2013-03-27 | 上海汇众汽车制造有限公司 | Vertical force loading apparatus for automotive rear axle assembly test |
| CN103134694A (en) * | 2013-02-28 | 2013-06-05 | 长城汽车股份有限公司 | Vehicle axle strength detection device |
| CN103196754A (en) * | 2013-03-18 | 2013-07-10 | 中国长安汽车集团股份有限公司四川建安车桥分公司 | Bending test device for semi-floating drive axle, and test method of same |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106198279A (en) * | 2016-06-24 | 2016-12-07 | 湖北泰和电气有限公司 | A kind of spring catch force measuring machine for quickly detecting ground intensity |
| CN106198279B (en) * | 2016-06-24 | 2023-03-10 | 湖北泰和电气有限公司 | Spring pin force measuring mechanism for rapidly detecting ground strength |
| CN110836765A (en) * | 2019-10-25 | 2020-02-25 | 安徽合力股份有限公司 | Test device for fatigue strength of forklift frame |
| CN110836765B (en) * | 2019-10-25 | 2024-05-31 | 安徽合力股份有限公司 | Test device for fatigue strength of forklift frame |
| CN113310827A (en) * | 2021-05-27 | 2021-08-27 | 一汽解放汽车有限公司 | Multidirectional loading test device for driving axle housing of commercial vehicle |
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