CN221003550U - Shaft coupling expansion device for testing wheel hub motor rack - Google Patents
Shaft coupling expansion device for testing wheel hub motor rack Download PDFInfo
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- CN221003550U CN221003550U CN202322751683.1U CN202322751683U CN221003550U CN 221003550 U CN221003550 U CN 221003550U CN 202322751683 U CN202322751683 U CN 202322751683U CN 221003550 U CN221003550 U CN 221003550U
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- 238000012360 testing method Methods 0.000 title claims abstract description 46
- 230000008878 coupling Effects 0.000 title claims abstract description 39
- 238000010168 coupling process Methods 0.000 title claims abstract description 39
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 177
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 37
- 238000007906 compression Methods 0.000 abstract description 37
- 238000005299 abrasion Methods 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 abstract 2
- 210000001503 joint Anatomy 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a shaft coupling expanding device for testing a wheel hub motor rack, which is characterized in that a transmission seat is provided with a mounting hole, a motor shaft penetrates through the mounting hole, a transmission block is provided with a first transmission hole, a transmission shaft of a dynamometer is provided with a plug-in column, and the plug-in column is in plug-in fit with the first transmission hole; the inner circle of the expansion ring is provided with a limit table, the transmission seat is arranged on the expansion ring in a penetrating manner and is abutted against the limit table, the compression ring is arranged on the expansion ring in a penetrating manner and is detachably connected with the transmission seat, an inlet of one end of the expansion ring, which is close to the compression ring, is in a horn mouth shape, the compression ring is in a cone frustum structure, the outer peripheral surface of the cone frustum structure is abutted against the inner peripheral wall of the inlet in the horn mouth shape, and the compression ring is matched with the transmission seat to adjust the ring diameter of the expansion ring, so that the outer peripheral surface of the expansion ring is abutted against the inner peripheral wall of the brake groove. The coupling expansion device for the hub motor bench test does not need to be connected with a valve hole, cannot cause abrasion of the valve hole, and is easy to install and high in safety.
Description
Technical Field
The utility model relates to the technical field of motor testing, in particular to a coupling expansion device for hub motor bench testing.
Background
Currently, two-wheeled electric vehicles are one of the main choices for people to travel daily. The motor is one of the most important components of the two-wheeled electric vehicle and is the core of a power system of the two-wheeled electric vehicle. The existing two-wheel electric vehicles are mainly provided with integrated hub motors, so that bench test of the hub motors is particularly important.
At present, the bench test mode of the hub motor is as follows: the motor is connected through a rocker on the dynamometer and a hook arranged on the rocker, and the hook is hung on a valve hole of the hub motor, so that the power transmission from the motor to the dynamometer is realized. However, due to the limitation of the appearance of the motor, the position of the hook on the rocker of the dynamometer needs to be adjusted repeatedly during connection, and the operation is complicated; in addition, the phenomenon that the hook is separated from the valve hole can occur in the test process, so that certain safety problems exist; meanwhile, the problem that the motor valve cannot be assembled normally due to damage and abrasion to the valve hole caused by the fact that the hook is hung on the valve hole is also solved.
Disclosure of utility model
The utility model aims at: the utility model provides a shaft coupling expansion device for in-wheel motor rack test to solve current in-wheel motor rack test and carry out motor power transmission's mode through couple and rocker, the operation is complicated, exists the couple and breaks away from the risk of valve hole, and the couple causes destruction, wearing and tearing to the valve hole, leads to the unable problem of normal assembly of inflating valve.
To achieve the purpose, the utility model adopts the following technical scheme:
Shaft coupling expanding device for in-wheel motor rack test, in-wheel motor include casing and motor shaft, the motor shaft wears to locate the casing, follows motor shaft axial one end, the brake groove has been seted up in the casing, shaft coupling expanding device for in-wheel motor rack test includes:
The transmission assembly comprises a transmission seat and a transmission block in transmission connection with the transmission seat, the transmission seat is provided with a mounting hole, the motor shaft penetrates through the mounting hole, the transmission block is provided with a first transmission hole, one end of a transmission shaft of the dynamometer is provided with a plug-in column, and the plug-in column is in plug-in fit with the first transmission hole;
the expansion assembly comprises an expansion ring and a compression ring, wherein the inner ring of the expansion ring is integrally provided with a limit table extending along the circumferential direction of the expansion ring, one side of the axial direction of the expansion ring is penetrated by a transmission seat, the transmission seat is in butt joint with the limit table, the other side of the axial direction of the expansion ring is penetrated by the compression ring, the expansion ring is detachably connected with the transmission seat, an inlet close to one end of the compression ring is in a horn mouth shape, the compression ring is in a cone table structure, the outer circumferential surface of the cone table structure is in butt joint with the inner circumferential wall of the inlet in the horn mouth shape, and the compression ring is matched with the transmission seat to adjust the ring diameter of the expansion ring so that the outer circumferential surface of the expansion ring is in butt joint with the inner circumferential wall of the brake groove.
As the preferred scheme of shaft coupling expanding device for the hub motor bench test, the transmission seat is of a stepped round platform structure, the stepped round platform structure comprises a first round platform, a second round platform and a third round platform, the diameters of the first round platform, the second round platform and the third round platform are sequentially reduced, the first round platform is close to the end face of the second round platform and is abutted against the limiting platform, the compression ring is sleeved on the second round platform, and the transmission block is sleeved on the third round platform.
As the preferable scheme of the shaft coupling expansion device for the hub motor bench test, the transmission block is provided with a second transmission hole, the end face of the second round table is provided with a transmission pin column, and the transmission pin column is in plug-in fit with the second transmission hole.
As the preferred scheme of the shaft coupling expansion device for the hub motor bench test, a plurality of first transmission holes and second transmission holes are formed in the first transmission holes and the second transmission holes, and the first transmission holes and the second transmission holes are uniformly distributed at intervals along the circumferential direction of the transmission block.
As the preferable scheme of the coupling expansion device for the hub motor bench test, the transmission block is made of rubber.
As the preferable scheme of the shaft coupling expanding device for the hub motor bench test, the transmission assembly further comprises a protection ring, and the protection ring is sleeved on the periphery of the transmission block.
As the preferable scheme of the shaft coupling expansion device for the hub motor bench test, one of the inner ring of the compression ring and the periphery of the second round table is provided with a limiting protrusion, and the other is provided with a limiting groove, and the limiting protrusion is in plug-in fit with the limiting groove.
As the preferred scheme of above-mentioned shaft coupling expanding device for in-wheel motor bench test, the clamp ring has seted up a plurality of tight holes of tightening, and is a plurality of tightening holes is followed the even interval distribution of circumference of clamp ring, a plurality of first screw holes have been seted up to first round platform, and a plurality of tightening holes and a plurality of first screw hole one-to-one, the fastener passes tightening hole with first screw hole threaded connection.
As the preferred scheme of above-mentioned shaft coupling expanding device for in-wheel motor bench test, a plurality of second screw holes have still been seted up to the clamp ring, along the circumference of clamp ring, a plurality of the second screw hole with a plurality of tightening Kong Jiaoti and even interval distribution.
As the preferable scheme of the shaft coupling expansion device for the hub motor bench test, the expansion ring is provided with a notch.
The beneficial effects of the utility model are as follows:
The utility model provides a coupling expansion device for testing a wheel hub motor rack, which comprises a transmission assembly and an expansion assembly. The transmission assembly comprises a transmission seat and a transmission block in transmission connection with the transmission seat, the transmission seat is provided with a mounting hole, a motor shaft penetrates through the mounting hole, the transmission block is provided with a first transmission hole, one end of a transmission shaft of the dynamometer is provided with a plug-in column, and the plug-in column is in plug-in fit with the first transmission hole; the expansion assembly comprises an expansion ring and a compression ring, wherein the inner ring of the expansion ring is integrally provided with a limit table extending along the circumferential direction of the expansion ring, one side of the axial direction of the expansion ring is penetrated and arranged by the transmission seat, the transmission seat is abutted against the limit table, the other side of the axial direction of the expansion ring is penetrated and arranged by the compression ring, the compression ring is detachably connected with the transmission seat, the inlet of one end of the expansion ring, which is close to the compression ring, is in a horn mouth shape, the compression ring is in a cone frustum structure, the outer circumferential surface of the cone frustum structure is abutted against the inner circumferential wall of the inlet which is in the horn mouth shape, and the compression ring is matched with the transmission seat to adjust the ring diameter of the expansion ring so that the outer circumferential surface of the expansion ring is abutted against the inner circumferential wall of the brake groove.
When the device is installed, the transmission block is connected with the transmission seat in a transmission way, the transmission seat is penetrated with the expansion ring and is abutted to the limiting table, then the expansion ring and the transmission seat are placed in the brake groove, the motor shaft is penetrated with the mounting hole, the compression ring is connected with the transmission seat and is regulated, the large end of the cone frustum structure is gradually moved towards the small end of the bell mouth-shaped inlet, the ring diameter of the expansion ring is continuously increased, and the periphery of the expansion ring can be abutted to the inner peripheral wall of the brake groove. After the coupling expansion device for the hub motor bench test is fixedly arranged in the brake groove, the plug-in column of the power measuring machine transmission shaft is plugged into the first transmission hole. When the power testing device works, the shell of the hub motor is driven to rotate around the motor shaft, and as the expansion ring is abutted against the inside of the brake groove of the shell, power can be sequentially transmitted to the transmission block through the inner peripheral wall of the brake groove, the expansion ring, the compression ring and the transmission seat, so that the transmission block rotates around the motor shaft, the transmission block drives the transmission shaft of the dynamometer to synchronously rotate, and finally, the power is transmitted to the dynamometer equipment for power testing through the transmission shaft of the dynamometer.
Compared with the power conduction mode of the existing hook and rocker, the coupling expansion device for the hub motor bench test does not need to be connected with a valve hole, so that abrasion of the valve hole cannot be caused, in addition, the coupling expansion device is easy to install, the phenomenon similar to unhooking of the hook does not exist, and the safety is high.
Drawings
FIG. 1 is a schematic installation diagram of a coupling expansion device for in-wheel motor rack testing provided by an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of a coupling expansion device for in-wheel motor rack testing according to an embodiment of the present utility model;
FIG. 3 is a schematic view of the transmission seat of FIG. 2;
FIG. 4 is a schematic view of the structure of the drive block of FIG. 2;
FIG. 5 is a schematic view of the construction of the expansion ring of FIG. 2;
Fig. 6 is a schematic view of the construction of the compression ring of fig. 2.
In the figure:
100. A housing; 101. a motor shaft; 102. a brake groove; 200. a power measuring machine transmission shaft; 201. a limiting ejector pin; 202. a dynamometer shaft mounting hole;
11. A transmission seat; 111. a mounting hole; 112. a first round table; 1121. a first threaded hole; 113. a second round table; 1131. a drive pin; 1132. a limit groove; 114. a third round table; 12. a transmission block; 121. a first transmission hole; 122. a second transmission hole; 123. a connection hole; 13. a protective ring;
21. A tension ring; 211. a limiting table; 212. a notch; 22. a compression ring; 221. a limit protrusion; 222. tightening the hole; 223. and a second threaded hole.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
The embodiment of the utility model provides a coupling expansion device for testing a wheel hub motor rack, wherein, as shown in fig. 1, a wheel hub motor comprises a shell 100 and a motor shaft 101, the motor shaft 101 penetrates through the shell 100, one end of the motor shaft 101 along the axial direction is provided with a brake groove 102 in the shell 100.
Specifically, as shown in fig. 1 to 6, the coupling expanding device for in-wheel motor bench test includes a transmission assembly and an expanding assembly. Wherein, the drive assembly includes drive seat 11 and drive seat 11 transmission connection drive block 12, and mounting hole 111 has been seted up to drive seat 11, and mounting hole 111 is worn to establish by motor shaft 101, and first drive hole 121 has been seted up to drive block 12, and the one end of dynamometer transmission shaft 200 is provided with the spliced pole, spliced pole and first drive hole 121 grafting cooperation. The expansion assembly comprises an expansion ring 21 and a compression ring 22, wherein a limit table 211 extending along the circumferential direction of the expansion ring 21 is integrally arranged on the inner ring of the expansion ring 21, one side of the expansion ring 21 in the axial direction is penetrated by the transmission seat 11 and is abutted against the limit table 211, the other side of the expansion ring 21 in the axial direction is penetrated by the compression ring 22, the compression ring 22 is penetrated by the expansion ring 21 and is detachably connected with the transmission seat 11, an inlet of one end, close to the compression ring 22, of the expansion ring 21 is in a horn mouth shape, the compression ring 22 is in a cone frustum structure, the outer circumferential surface of the cone frustum structure is abutted against the inner circumferential wall of the inlet in the horn mouth shape, and the compression ring 22 is matched with the transmission seat 11 to adjust the ring diameter of the expansion ring 21 so that the outer circumferential surface of the expansion ring 21 is abutted against the inner circumferential wall of the brake groove 102.
Specifically, as shown in fig. 1 to 6, when in installation, the transmission block 12 is firstly in transmission connection with the transmission seat 11, the transmission seat 11 is penetrated with the expansion ring 21 and is abutted against the limiting table 211, the expansion ring 21 and the transmission seat 11 are placed in the brake groove 102, the motor shaft 101 is penetrated with the mounting hole 111, the compression ring 22 is connected with the transmission seat 11 and the compression ring 22 is adjusted, so that the large end of the cone frustum structure gradually moves towards the small end of the bell mouth-shaped inlet, the ring diameter of the expansion ring 21 is continuously increased, and the outer periphery of the expansion ring 21 can be abutted against the inner peripheral wall of the brake groove 102. After the coupling expansion device for the hub motor bench test is fixedly arranged in the brake groove 102, the plug-in column of the dynamometer transmission shaft 200 is plugged into the first transmission hole 121. In detail, during operation, the casing 100 of the hub motor is driven to rotate around the motor shaft 101, and since the expansion ring 21 is abutted against the brake groove 102 of the casing 100, power can be sequentially transmitted to the transmission block 12 through the inner peripheral wall of the brake groove 102, the expansion ring 21, the compression ring 22 and the transmission seat 11, so that the transmission block 12 synchronously rotates around the motor shaft 101, then the transmission block 12 drives the dynamometer transmission shaft 200 to synchronously rotate, and finally the dynamometer transmission shaft 200 transmits power to the dynamometer equipment for power testing.
Compared with the existing power transmission mode of the hook and the rocker, the coupling expansion device for the hub motor bench test is abutted to the inner peripheral wall of the brake groove 102 through the expansion ring 21, and is not connected with a valve hole, so that abrasion of the valve hole and the phenomenon that a valve is incapable of being assembled normally are avoided, in addition, the coupling expansion device is easy to install, and is free from the phenomenon similar to unhooking of the hook, and the safety is high.
Specifically, as shown in fig. 2 to 4, the transmission seat 11 is a stepped circular truncated cone structure, the stepped circular truncated cone structure includes a first circular truncated cone 112, a second circular truncated cone 113 and a third circular truncated cone 114, the end surface of the first circular truncated cone 112, which is close to the second circular truncated cone 113, is abutted against the limiting table 211, the pressing ring 22 is sleeved on the second circular truncated cone 113, and the transmission block 12 is sleeved on the third circular truncated cone 114. More specifically, the transmission block 12 is provided with a second transmission hole 122, the end face of the second round table 113 is provided with a transmission pin 1131, the transmission pin 1131 is in plug-in fit with the second transmission hole 122, and when the transmission seat 11 rotates, the transmission block 12 is driven to synchronously rotate by the cooperation of the transmission pin 1131 and the second transmission hole 122, so that the force transmission between the transmission seat 11 and the transmission block 12 is realized, and the transmission block 12 is also convenient to install on the transmission seat 11. Further, the first transmission holes 121 and the second transmission holes 122 are all provided with a plurality of transmission holes, and the plurality of first transmission holes 121 and the plurality of second transmission holes 122 are alternately and uniformly distributed at intervals along the circumferential direction of the transmission block 12. By the arrangement, the force distribution of the transmission pin 1131 and the plug column on the transmission block 12 is balanced, and the transmission effect of the transmission block 12 is ensured.
Illustratively, three first drive holes 121, three second drive holes 122, and three drive pins 1131 are provided.
Preferably, the material of the driving block 12 is rubber. By the arrangement, the transmission seat 11 and the dynamometer transmission shaft 200 can be buffered and protected, and the problems of abrasion and deformation caused by direct rigid contact of the transmission seat 11 and the dynamometer transmission shaft 200 are avoided. Further, the transmission assembly further comprises a protection ring 13, and the protection ring 13 is sleeved on the periphery of the transmission block 12. Preferably, the material of the protection ring 1 is metal. When the hub motor works under a large load, the transmission pin 1131 and the plug post of the power meter transmission shaft 200 can squeeze the transmission block 12, so that the transmission block 12 is deformed in a squeezing way, and the force transmission of the transmission block 12 is unbalanced, therefore, the protection ring 13 is sleeved on the periphery of the transmission block 12, so that the deformation of the transmission block 12 is restrained, the force transmission is more balanced, and the effect of protecting the transmission block 12 is also achieved.
Specifically, as shown in fig. 1, 2, 3 and 6, the compression ring 22 is provided with a plurality of tightening holes 222, the plurality of tightening holes 222 are uniformly distributed at intervals along the circumferential direction of the compression ring 22, the first round table 112 is provided with a plurality of first threaded holes 1121, the plurality of tightening holes 222 are in one-to-one correspondence with the plurality of first threaded holes 1121, and the fastener passes through the tightening holes 222 to be in threaded connection with the first threaded holes 1121. In detail, the fastener is a fastening screw. The outer circumferential surface of the compression ring 22 and the inner wall of the bell mouth-shaped inlet can be conveniently adjusted to be tightly abutted against the inner circumferential wall of the brake groove 102 by the fastening screw in threaded connection with the first threaded hole 1121.
Preferably, as shown in fig. 2, 3 and 6, the compression ring 22 is further provided with a plurality of second screw holes 223, and the plurality of second screw holes 223 are alternately and uniformly spaced apart from the plurality of tightening holes 222 along the circumferential direction of the compression ring 22. So set up, when dismantling, through dismantling screw and second screw hole 223 threaded connection to make the screw portion of dismantling the screw pass second screw hole and the terminal surface butt of first round platform 112, continue to twist and dismantle the screw and make and produce opposite effort between clamp ring 22 and the drive seat 11, thereby enable clamp ring 22 or drive seat 11 to withdraw from the expansion ring 21, thereby improve the efficiency of dismantling.
Illustratively, three tightening holes 222, three first threaded holes 1121, and three second threaded holes 223 are provided as examples.
Preferably, as shown in fig. 2, 3 and 6, one of the inner ring of the compression ring 22 and the outer circumference of the second round table 113 is provided with a limit protrusion 221, and the other is provided with a limit groove 1132, and the limit protrusion 221 is in a plug-in fit with the limit groove 1132. So set up, when in-wheel motor's power passes through the tight circle 21 of expanding and transmits to clamp ring 22, can pass through spacing arch 221 and spacing recess 1132 with power transmission to drive seat 11, finally transmit to dynamometer transmission shaft 200 to avoid carrying out the problem that force transmission leads to the fastening screw to receive radial force deformation through the fastening screw.
Illustratively, as shown in fig. 3 and 6, in the present embodiment, the pressing ring 22 is provided with the limit protrusion 221, and the second round table 113 is provided with the limit groove 1132 as an example. Further, the plurality of limiting protrusions 221 and the plurality of limiting grooves 1132 are respectively provided, the plurality of limiting protrusions 221 are uniformly distributed at intervals along the circumferential direction of the pressing ring 22, and the plurality of limiting grooves 1132 are uniformly distributed at intervals along the circumferential direction of the second round table 113. Further, the setting position of the tightening hole 222 corresponds to the setting position of the limiting protrusion 221, and the setting position of the limiting groove 1132 corresponds to the setting position of the first threaded hole 1121, so that the tightening hole 222 and the first threaded hole 1121 can be quickly aligned Ji Le through the plug-in matching of the limiting groove 1132 and the limiting protrusion 221, and the installation efficiency is improved.
Specifically, as shown in fig. 2 and 5, the expander ring 21 is provided with a notch 212. So arranged, the ring diameter of the expansion ring 21 is adjusted by the compression ring 22. Alternatively, the gap 212 may not be provided when the expansion ring 21 is made of rubber, and the ring diameter of the expansion ring 21 may be changed due to the easy deformation of the rubber.
Specifically, as shown in fig. 1 and 2, one end, which is close to the plug post, of the power meter transmission shaft 200 along the axial direction is provided with a butt joint hole extending along the axial direction, a bearing and a limit knock pin 201 are arranged in the butt joint hole, the bearing is fixedly connected to the peripheral wall of the butt joint hole and is sleeved on the periphery of the limit knock pin 201, when the plug post is plugged into the first transmission hole 121, the motor shaft 101 is inserted into the butt joint hole and is abutted against the limit knock pin 201, and the central axis of the motor shaft 101 is collinear with the central axis of the power meter transmission shaft 200, so that the power meter transmission shaft 200 does not shake during rotation, and the test effect is ensured. More specifically, along the other axial end of the power meter transmission shaft 200, the power meter transmission shaft 200 is provided with a power meter shaft mounting hole 202 extending along the axial direction, and the power meter shaft is in plug-in fit with the power meter shaft mounting hole 202, so that the power meter transmission shaft 200 can drive the power meter shaft to synchronously rotate.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. Shaft coupling expanding device for in-wheel motor rack test, in-wheel motor include casing (100) and motor shaft (101), motor shaft (101) wear to locate casing (100), follow motor shaft (101) axial one end, brake groove (102) have been seted up in casing (100), a serial communication port, shaft coupling expanding device for in-wheel motor rack test includes:
The transmission assembly comprises a transmission seat (11) and a transmission block (12) connected with the transmission seat (11) in a transmission manner, wherein the transmission seat (11) is provided with a mounting hole (111), a motor shaft (101) penetrates through the mounting hole (111), the transmission block (12) is provided with a first transmission hole (121), one end of a power measuring machine transmission shaft (200) is provided with a plug-in column, and the plug-in column is in plug-in fit with the first transmission hole (121);
The utility model provides an expansion assembly, includes expansion ring (21) and clamp ring (22), the integrative limit table (211) that extend along the circumference of expansion ring (21) that is equipped with of inner circle of expansion ring (21), follow expansion ring (21) axis direction's one side, transmission seat (11) wear to locate expansion ring (21) and with limit table (211) looks butt, follow expansion ring (21) axis direction's opposite side, clamp ring (22) wear to locate expansion ring (21) and with transmission seat (11) detachable connection, expansion ring (21) are close to the entry of clamp ring (22) one end is the horn mouth form, clamp ring (22) are the circular cone frustum structure, circular cone frustum structure's outer peripheral face with be the inner peripheral wall looks butt of the entry, clamp ring (22) with transmission seat (11) cooperation is adjusted expansion ring (21) circle footpath to make expansion ring (21) and clamp ring's outer peripheral wall (21) is in the brake groove 102.
2. The coupling expansion device for hub motor bench test according to claim 1, wherein the transmission seat (11) is of a stepped circular truncated cone structure, the stepped circular truncated cone structure comprises a first circular truncated cone (112), a second circular truncated cone (113) and a third circular truncated cone (114), the end face, close to the second circular truncated cone (113), of the first circular truncated cone (112) is abutted against the limiting table (211), the pressing ring (22) is sleeved on the second circular truncated cone (113), and the transmission block (12) is sleeved on the third circular truncated cone (114).
3. The coupling expansion device for hub motor bench test according to claim 2, wherein the transmission block (12) is provided with a second transmission hole (122), the end surface of the second round table (113) is provided with a transmission pin (1131), and the transmission pin (1131) is in plug-in fit with the second transmission hole (122).
4. A coupling expanding device for testing an in-wheel motor bench according to claim 3, wherein the first transmission holes (121) and the second transmission holes (122) are all provided in plurality, and the first transmission holes (121) and the second transmission holes (122) are alternately and uniformly distributed at intervals along the circumferential direction of the transmission block (12).
5. The coupling expanding device for in-wheel motor bench test according to claim 1, characterized in that the material of the transmission block (12) is rubber.
6. The coupling expanding device for testing the wheel hub motor rack according to claim 5, wherein the transmission assembly further comprises a protection ring (13), and the protection ring (13) is sleeved on the periphery of the transmission block (12).
7. The coupling expansion device for in-wheel motor bench test according to claim 2, wherein one of the inner ring of the pressing ring (22) and the outer periphery of the second round table (113) is provided with a limiting protrusion (221), the other is provided with a limiting groove (1132), and the limiting protrusion (221) is in plug-in fit with the limiting groove (1132).
8. The coupling expansion device for hub motor bench test according to claim 2, wherein the pressing ring (22) is provided with a plurality of tightening holes (222), the tightening holes (222) are uniformly distributed at intervals along the circumferential direction of the pressing ring (22), the first round table (112) is provided with a plurality of first threaded holes (1121), the tightening holes (222) are in one-to-one correspondence with the first threaded holes (1121), and a fastener penetrates through the tightening holes (222) to be in threaded connection with the first threaded holes (1121).
9. The coupling expanding device for testing the wheel hub motor rack according to claim 8, wherein the pressing ring (22) is further provided with a plurality of second threaded holes (223), and the second threaded holes (223) and the tightening holes (222) are alternately and uniformly distributed at intervals along the circumferential direction of the pressing ring (22).
10. The coupling expansion device for in-wheel motor rack testing according to any of the claims 1-9, characterized in that the expansion ring (21) is provided with notches (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322751683.1U CN221003550U (en) | 2023-10-13 | 2023-10-13 | Shaft coupling expansion device for testing wheel hub motor rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322751683.1U CN221003550U (en) | 2023-10-13 | 2023-10-13 | Shaft coupling expansion device for testing wheel hub motor rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221003550U true CN221003550U (en) | 2024-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322751683.1U Active CN221003550U (en) | 2023-10-13 | 2023-10-13 | Shaft coupling expansion device for testing wheel hub motor rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221003550U (en) |
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2023
- 2023-10-13 CN CN202322751683.1U patent/CN221003550U/en active Active
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