A load-movable electric drive axle assembly running-in bench

Abstract

The present invention provides a load-movable electric drive axle assembly running-in bench, which improves the efficiency of clamping and disassembly operations. It includes: two groups of mobile load components, each group of mobile load components includes a load base plate at the bottom, a horizontal linear drive mechanism, and a load fixed base assembly, and the horizontal output end of the horizontal linear drive mechanism is connected to the load fixed base assembly; two groups of wheel hub tooling lifting components, each of which includes a support base plate, a support frame, a lifting cylinder, and a support bracket. The upper surface of the support base plate is provided with at least one guide rail, and the bottom of the support frame is arranged to move along the guide rail. The support frame is provided with a lifting cylinder, and the upper output end of the lifting cylinder is connected to the support bracket; a pair of electric drive axle fixed bases; two groups of load assemblies; two groups of wheel hub transfer tooling, each group of wheel hub transfer tooling includes a connecting shaft and a flange connecting frame; two groups of universal shafts; and a cast iron platform.

Description

Technical Field

[0001] The invention relates to the technical field of electric drive axle running-in tooling, and in particular to a load-movable electric drive axle assembly running-in bench. Background Art

[0002] Before the electric drive axle assembly is produced and shipped out of the factory, it is necessary to conduct a running-in test to simulate the actual vehicle working conditions to detect the various functional performances of the assembly. There are two conventional electric drive axle testing methods. One is that the load assembly is directly locked on the cast iron platform with T-bolts. If the electric drive axle assembly needs to be loaded and unloaded, the load assembly bolts need to be manually loosened and moved to both sides. After the electric drive axle assembly is installed, the load assembly is moved inward to assemble the hub of the bridge into the hub adapter tooling. The other method is to fix the load assemblies on both sides. Before installation, the hub adapter tooling on both sides needs to be locked on the bridge hub in advance outside the test bench, and then the bridge is installed on the test bench and connected to the universal shaft.

[0003] The clamping and disassembly efficiencies of the above two test methods are not high, and both require manpower to install the hub adapter tooling, which has high manpower costs. Summary of the invention

[0004] In view of the above problems, the present invention provides a load-movable electric drive axle assembly running-in bench, which improves the efficiency of clamping and disassembly operations, eliminates the need to install hub adapter tooling in advance, and saves manpower.

[0005] A load-movable electric drive axle assembly running-in bench, characterized in that it comprises:

[0006] Two groups of mobile load assemblies, each group of mobile load assemblies includes a load base plate at the bottom, a horizontal linear drive mechanism, and a load fixed base assembly, and the horizontal output end of the horizontal linear drive mechanism is connected to the load fixed base assembly;

[0007] Two sets of wheel hub tooling lifting assemblies, each of which comprises a supporting base plate, a supporting frame, a lifting cylinder, and a supporting bracket, wherein the upper surface of the supporting base plate is provided with at least one guide rail, the bottom of the supporting frame is arranged to move along the guide rail, the supporting frame is provided with a lifting cylinder, and the upper output end of the lifting cylinder is connected to the supporting bracket;

[0008] A pair of electric drive axle fixing bases;

[0009] Two sets of load assemblies;

[0010] Two sets of wheel hub transfer fixtures, each set of wheel hub transfer fixtures includes a connecting shaft and a flange connecting frame;

[0011] Two sets of cardan shafts;

[0012] and cast iron platforms;

[0013] A pair of electric drive axle fixed bases are respectively fixedly installed in the central area of ​​the length direction of the cast iron platform, and the two ends of the electric drive axle assembly under test in the length direction are respectively supported on the upper supporting ends of the corresponding electric drive axle fixed bases, and the wheel hubs of the electric drive axle assembly under test are arranged toward both sides, and the load base plates of each group of the mobile load components are fixedly connected to the corresponding sides in the length direction of the cast iron platform, and the support base plates of each group of the wheel hub tooling lifting components are fixedly connected to the corresponding sides in the length direction of the cast iron platform, and the wheel hub tooling lifting components on each side are arranged on the inner side of the mobile load components on the corresponding side, and the upper end of the load fixed base assembly supports the corresponding load assembly, and the inner end output end of each load assembly is connected to the connecting shaft of the corresponding wheel hub adapter tooling through a universal shaft, and the flange connecting frame is supported on the supporting bracket, and the flange surface of the flange connecting frame is arranged toward the corresponding connecting surface of the wheel hub.

[0014] It is further characterized by:

[0015] The load fixing base assembly comprises a load translation plate, a first load fixing base, a second load fixing base, and a plurality of T-shaped bolts and nuts. The two ends of the load base relative to the width of the load translation plate are respectively provided with upwardly convex T-shaped hard rails. The two ends of the load translation plate in the width direction are respectively supported on the upper surface of the T-shaped hard rails and are limited or fixedly installed by T-shaped bolts and nuts. The corresponding two ends of the load assembly are respectively supported on the upper end supporting structures of the first load fixing base and the second load fixing base.

[0016] The horizontal linear drive mechanism is specifically at least two groups of rodless cylinders arranged in parallel, and the output end of each group of rodless cylinders is respectively fixed to the bottom end surface of the load translation plate to ensure stable and reliable movement;

[0017] The support frame includes a support translation plate, four guide columns, four sets of linear bearings, and a support lifting plate. The support lifting plate is connected to the support translation plate at the bottom through guide columns and linear bearings at four corners. The lifting cylinder is fixedly mounted on the upper plate surface of the support translation plate, and the upper output end of the lifting cylinder is fixedly connected to the support lifting plate.

[0018] The bottom of the supporting translation plate is supported on the guide rail through a guide rail pair, and the number of the guide rails is at least two;

[0019] The support translation plate and the load translation plate are fixedly connected by a connecting seat and a connecting rod to form an integral structure, thereby ensuring stable and reliable linkage;

[0020] The support bracket is specifically a V-shaped bracket, which ensures stable and reliable support of the flange connection frame of the hub adapter tooling.

[0021] After adopting the above technical solution, the horizontal linear drive mechanism is used to drive the load assembly components on both sides to move, which is convenient for the installation of the electric drive axle assembly before the bench running-in test and the disassembly after the test; and the lifting cylinder is used to support the hub adapter tooling, which provides auxiliary support before installation and descends during running-in without affecting the running-in rotation; it improves the efficiency of clamping and disassembly operations, and there is no need to install the hub adapter tooling in advance, saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0023] Figure 2 It is a three-dimensional schematic diagram of the assembly of the mobile load assembly and the hub tooling lifting assembly of the present invention;

[0024] The names corresponding to the serial numbers in the figure are as follows:

[0025] 1 mobile load assembly, 1-1 load base plate, 1-2 rodless cylinder, 1-3 T-type hard rail, 1-4 load translation plate, 1-5 first load fixed base, 1-6 second load fixed base, 1-7 T-type bolts and nuts, 2 hub tooling lifting assembly, 2-1 support base plate, 2-2 support translation plate, 2-3 lifting cylinder, 2-4 linear bearing, 2-5 support lifting plate, 2-6 support V-type support, 2-7 connecting rod, 2-8 guide rail, 2-9 connecting seat, 2-10 guide column, 3 electric drive axle fixed base, 4 universal shaft, 5 hub adapter tooling, 6 load assembly, 7 tested electric drive axle assembly, 8 cast iron platform. DETAILED DESCRIPTION

[0026] A load-removable electric drive axle assembly running-in bench, see Figure 1 and Figure 2 It includes two sets of mobile load components 1, two sets of wheel hub tooling lifting components 2, a pair of electric drive axle fixing bases 3, two sets of load assemblies 6, two sets of wheel hub adapter tooling 5, two sets of universal shafts 4, and a cast iron platform 8;

[0027] Each group of mobile load components 1 includes a load base plate 1-1 at the bottom, a horizontal linear drive mechanism, and a load fixed base component, and the horizontal output end of the horizontal linear drive mechanism is connected to the load fixed base component;

[0028] Each hub tooling lifting assembly 2 includes a supporting base plate 2-1, a supporting frame, a lifting cylinder 2-3, and a supporting bracket. Two guide rails 2-8 are arranged on the upper surface of the supporting base plate 2-1. The bottom of the supporting frame is arranged to move along the guide rails 2-8. The supporting frame is provided with a lifting cylinder 2-3. The upper output end of the lifting cylinder 2-3 is connected to the supporting bracket.

[0029] Each set of wheel hub adapter tooling 5 includes a connecting shaft and a flange connecting frame;

[0030] A pair of electric drive axle fixed bases 3 are respectively fixedly installed in the central area of ​​the length direction of the cast iron platform 8, and the two ends of the electric drive axle assembly 7 under test in the length direction are respectively supported on the upper supporting ends of the corresponding electric drive axle fixed bases 3, and the hubs of the electric drive axle assembly 7 under test are arranged toward both sides, and the load base plate 1-1 of each group of mobile load components 1 is fixedly connected to the corresponding side of the length direction of the cast iron platform 8, and the support base plate 2-1 of each group of hub tooling lifting components 2 is fixedly connected to the corresponding side of the length direction of the cast iron platform 8. The hub tooling lifting components 2 on each side are arranged on the inner side of the mobile load component 1 on the corresponding side, and the upper end of the load fixed base assembly supports the corresponding load assembly 6, and the inner end output end of each load assembly 6 is connected to the connecting shaft of the corresponding hub adapter tooling 5 through a universal shaft 4, and the flange connecting frame is supported on the supporting bracket, and the flange surface of the flange connecting frame is arranged toward the corresponding connecting surface of the hub.

[0031] During specific implementation: the load fixed base assembly includes a load translation plate 1-4, a load first fixed base 1-5, a load second fixed base 1-6, and a plurality of T-shaped bolts and nuts 1-7. The load base plate 1-1 is provided with upwardly convex T-shaped hard rails 1-3 at both ends of the width relative to the load translation plate 1-4. The two ends of the load translation plate 1-4 in the width direction are respectively supported on the upper surface of the T-shaped hard rail 1-3, and are limited or fixedly installed by T-shaped bolts and nuts 1-7. The two ends of the corresponding load assembly 6 are respectively supported on the upper end support structures of the load first fixed base 1-5 and the load second fixed base 1-6.

[0032] The horizontal linear drive mechanism is specifically composed of three groups of rodless cylinders 1-2 arranged in parallel, and the output end of each group of rodless cylinders 1-2 is respectively fixed to the bottom end surface of the load translation plate 1-4 to ensure stable and reliable movement;

[0033] The support frame includes a support translation plate 2-2, four guide columns 2-10, four sets of linear bearings 2-4, and a support lifting plate 2-5. The support lifting plate 2-5 is connected to the bottom support translation plate 2-2 through the guide columns 2-10 and linear bearings 2-4 at the four corners. The lifting cylinder 2-3 is fixedly mounted on the upper plate surface of the support translation plate 2-2, and the upper output end of the lifting cylinder 2-3 is fixedly connected to the support lifting plate 2-5.

[0034] The bottom of the support translation plate 2-2 is supported on the guide rail 2-8 through a guide rail pair;

[0035] The supporting translation plate 2-2 and the load translation plate 1-4 are fixedly connected by the connecting seat 2-9 and the connecting rod 2-7 to form an integral structure, ensuring stable and reliable linkage;

[0036] The supporting bracket is specifically a V-shaped bracket 2-6, which ensures stable and reliable support of the flange connection frame of the hub adapter tooling.

[0037] Working principle and process:

[0038] The status of this device before the bridge is installed: the T-bolts and nuts 1-7 on the mobile load component 1 are loosened, and the rodless cylinder 1-2 drives the mobile load component 1 and the hub tooling lifting component 2 to be in the outermost state of the test bench. At this time, the empty space in the middle of the test bench can be used to lift the electric drive axle to the electric drive axle fixed base 3 with the bolts and nuts locked.

[0039] The state of this device during bridge installation: through the operation of the button of the external electric control box, the rodless cylinder 1-2 is controlled to move toward the center of the test stand until the hub adapter 5 is inserted into the limit position of the electric drive bridge hub. Due to the deviation of the external dimensions of different bridges, the center height and the hub adapter are different. When the hub adapter 5 is about to be inserted into the electric drive bridge hub, the lifting cylinder 2-3 can be controlled to rise or fall through the button of the external electric control box so that it can be inserted into the hub smoothly. Use nuts to lock and fix the hub adapter 5 and the electric drive bridge hub, and tighten the T-bolt nuts 1-7 on the load translation plate 1-4.

[0040] The state of this device during the bridge running-in: through the button operation of the external electric control box, the lifting cylinder 2-3 is controlled to descend to the lowest position to ensure that the supporting V-shaped support 2-6 does not contact the wheel hub adapter tooling 5, so as not to hinder the rotation of the wheel hub during the subsequent bridge running-in.

[0041] After the bridge running-in is completed, the disassembly steps are as follows: through the buttons of the external electric control box, control the lifting cylinder 2-3 to rise and support the hub adapter 5, loosen the nut of the hub to loosen the hub adapter 5 from the electric drive bridge hub. Loosen the T-shaped bolts and nuts 1-7 on the load translation plate 1-4, and through the buttons of the external electric control box, control the rodless cylinder 1-2 to move to both sides of the test bench until the hub adapter 5 is separated from the electric drive bridge hub. Loosen the bolts and nuts between the electric drive bridge and the electric drive bridge fixed base, and use a crane to lift the electric drive bridge away from the running-in test bench.

[0042] Connection relationship:

[0043] The cast iron platform is fixed to the ground by expansion bolts, the load base plate 1-1 is fixed to the surface of the cast iron platform by T-bolts and nuts, and the rodless cylinder 1-2 and the T-hard rail 1-3 are bolted to the load base plate 1-1. The load translation plate 1-4 is fixed to the slider of the rodless cylinder 1-2 by bolts, and there is sliding friction between the load translation plate 1-4 and the T-hard rail 1-3. The load fixed base 11-5 and the load fixed base 21-6 are fixed to the load translation plate 1-4 by bolts, and the load assembly 6 is fixed to the load fixed base by bolts.

[0044] The support base plate 2-1 is fixed to the surface of the cast iron platform by T-shaped bolts and nuts, the guide rail 2-8 is fixed to the support base plate 2-1 by bolts, the support translation plate 2-2 is connected to the slider on the guide rail 2-8 by bolts, the lifting cylinder 2-3 is fixed to the surface of the support translation plate 2-2 by bolts, the support lifting plate 2-5 is threadedly connected to the end of the piston rod of the lifting cylinder 2-3, and the support V-shaped bracket 2-6 is fixed to the support lifting plate 2-5 by bolts. The load translation plate 1-4 and the support translation plate 2-2 are both bolted to the connecting seat 2-9, and the connecting rod 2-7 is bolted between the connecting seats 2-9.

[0045] Beneficial effects: The horizontal linear drive mechanism is used to drive the load assembly components on both sides to move, which facilitates the installation of the electric drive axle assembly before the bench running-in test and the disassembly after the test; and the lifting cylinder is used to support the hub adapter tooling, which provides auxiliary support before installation and descends during running-in without affecting the running-in rotation; it improves the efficiency of clamping and disassembly operations, and there is no need to install the hub adapter tooling in advance, saving manpower.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A load-removable electric drive axle assembly running-in bench, It is characterized in that It includes: Two groups of mobile load assemblies, each group of mobile load assemblies includes a load base plate at the bottom, a horizontal linear drive mechanism, and a load fixed base assembly, and the horizontal output end of the horizontal linear drive mechanism is connected to the load fixed base assembly; Two sets of wheel hub tooling lifting assemblies, each of which comprises a supporting base plate, a supporting frame, a lifting cylinder, and a supporting bracket, wherein the upper surface of the supporting base plate is provided with at least one guide rail, the bottom of the supporting frame is arranged to move along the guide rail, the supporting frame is provided with a lifting cylinder, and the upper output end of the lifting cylinder is connected to the supporting bracket; A pair of electric drive axle fixing bases; Two sets of load assemblies; Two sets of wheel hub transfer fixtures, each set of wheel hub transfer fixtures includes a connecting shaft and a flange connecting frame; Two sets of cardan shafts; and cast iron platforms; A pair of electric drive axle fixed bases are respectively fixedly installed in the central area of ​​the length direction of the cast iron platform, and the two ends of the electric drive axle assembly under test in the length direction are respectively supported on the upper supporting ends of the corresponding electric drive axle fixed bases, and the wheel hubs of the electric drive axle assembly under test are arranged toward both sides, and the load base plates of each group of the mobile load components are fixedly connected to the corresponding sides in the length direction of the cast iron platform, and the support base plates of each group of the wheel hub tooling lifting components are fixedly connected to the corresponding sides in the length direction of the cast iron platform, and the wheel hub tooling lifting components on each side are arranged on the inner side of the mobile load components on the corresponding side, and the upper end of the load fixed base assembly supports the corresponding load assembly, and the inner end output end of each load assembly is connected to the connecting shaft of the corresponding wheel hub adapter tooling through a universal shaft, and the flange connecting frame is supported on the supporting bracket, and the flange surface of the flange connecting frame is arranged toward the corresponding connecting surface of the wheel hub.

2. A load-movable electric drive axle assembly running-in bench as claimed in claim 1, Features: The load fixed base assembly includes a load translation plate, a first load fixed base, a second load fixed base, and a plurality of T-shaped bolts and nuts. The load base plate is provided with upwardly convex T-shaped hard rails at both ends relative to the width of the load translation plate. The two ends of the load translation plate in the width direction are respectively supported on the upper surface of the T-shaped hard rails and are limited or fixedly installed by T-shaped bolts and nuts. The corresponding two ends of the load assembly are respectively supported on the upper end supporting structures of the first load fixed base and the second load fixed base.

3. A load-movable electric drive axle assembly running-in bench as claimed in claim 2, Features: The horizontal linear drive mechanism is specifically at least two groups of rodless cylinders arranged in parallel, and the output end of each group of rodless cylinders is respectively fixedly connected to the bottom end surface of the load translation plate.

4. A load-movable electric drive axle assembly running-in bench as claimed in claim 3, Features: The support frame includes a supporting translation plate, four guide columns, four sets of linear bearings, and a supporting lifting plate. The supporting lifting plate is connected to the supporting translation plate at the bottom through guide columns and linear bearings at four corners. The lifting cylinder is fixedly mounted on the upper plate surface of the supporting translation plate, and the upper output end of the lifting cylinder is fixedly connected to the supporting lifting plate.

5. A load-movable electric drive axle assembly running-in bench as claimed in claim 4, Features: The bottom of the supporting translation plate is supported on the guide rail through a guide rail pair, and the number of the guide rails is at least two.

6. A load-movable electric drive axle assembly running-in bench as claimed in claim 5, Features: The supporting translation plate and the load translation plate are fixedly connected via a connecting seat and a connecting rod to form an integral structure.

7. A load-movable electric drive axle assembly running-in bench as claimed in claim 1, Features: The supporting bracket is specifically a V-shaped bracket.

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