CN112440619A - Mobile device - Google Patents
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- CN112440619A CN112440619A CN201910821574.8A CN201910821574A CN112440619A CN 112440619 A CN112440619 A CN 112440619A CN 201910821574 A CN201910821574 A CN 201910821574A CN 112440619 A CN112440619 A CN 112440619A
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- Prior art keywords
- axle
- hole
- wheel
- mobile device
- transmission key
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B37/00—Wheel-axle combinations, e.g. wheel sets
- B60B37/06—Wheel-axle combinations, e.g. wheel sets the wheels being integral with, or rigidly attached to, hollow axles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
- B61D15/08—Railway inspection trolleys
Abstract
The present disclosure provides a mobile device, comprising: an axle provided with a first through hole, wherein the first through hole penetrates the axle in a direction perpendicular to an axis of the axle; the transmission key penetrates through the first through hole, and two ends of the transmission key protrude out of the surface of the axle; and a wheel provided with a mounting hole for mounting the axle and the transmission key; wherein the axle drives the wheels to rotate through the transmission key.
Description
Technical Field
The present disclosure relates to the field of warehouse logistics, and more particularly, to a mobile device.
Background
With the rapid development of artificial intelligence, automatic control, communication and computer technologies, robots are increasingly used in many fields such as industrial and agricultural production, buildings, logistics, and daily life. The wheel type robot moves through rotation of wheels, the chassis of the wheel type robot is provided with axles and wheels, the axles and the wheels can be connected through flat keys to transmit torque, and the flat keys are arranged in parallel to the axis direction of the axles.
In implementing the disclosed concept, the inventors found that there are at least the following problems in the related art:
when the flat key is installed, the key groove needs to be arranged on the surface of the axle to accommodate the flat key, the existing flat key installation mode needs the axle to have certain wall thickness, and the key groove is not easy to be arranged on the axle with thin tube wall, so that the flat key is difficult to install.
Disclosure of Invention
In view of this, the present disclosure provides a mobile device, comprising: an axle provided with a first through hole, wherein the first through hole penetrates the axle in a direction perpendicular to an axis of the axle; the transmission key penetrates through the first through hole, and two ends of the transmission key protrude out of the surface of the axle; and a wheel provided with a mounting hole for mounting the axle and the transmission key; wherein the axle drives the wheels to rotate through the transmission key.
According to an embodiment of the present disclosure, the mobile device further comprises: a fastener for connecting the axle and the wheel; the end part of the axle is provided with a connecting hole, the end part of the axle penetrates into the mounting hole from the first side of the wheel, and the end part of the fastener penetrates into the mounting hole from the second side of the wheel and is fastened in the connecting hole at the end part of the axle.
According to an embodiment of the present disclosure, the mounting hole includes a second through hole and two blind holes communicating with the second through hole, the two blind holes are symmetrically disposed along an axis of the second through hole, wherein the axis of the second through hole coincides with an axis of the wheel; the two blind holes are arranged on the surface of the first side of the wheel, and the shapes of the two blind holes are matched with the shape of the part, protruding out of the surface of the axle, of the transmission key; the end part of the axle is positioned in the second through hole, and the part of the transmission key, which protrudes out of the surface of the axle, is positioned in the two blind holes.
According to an embodiment of the present disclosure, the mobile device further comprises: and the adjusting piece is arranged between the transmission key and the mounting hole and is used for adjusting the position relation between the axle and the wheel.
According to an embodiment of the present disclosure, the mobile device further comprises: the adjusting piece is arranged between the transmission key and the mounting hole; the shape of the adjusting piece is matched with that of the blind hole, the adjusting piece is arranged between the bottom surface of the blind hole and the transmission key, the adjusting piece comprises a plurality of adjusting gaskets, and the number of the adjusting gaskets arranged in the two blind holes is equal.
According to an embodiment of the present disclosure, the axle is a hollow structure; the cross section of the axle perpendicular to the axle axis is circular; the first through hole penetrates through wall surfaces on both sides of the axle in a diameter direction of the circular cross section.
According to this disclosed embodiment, the drive key includes straight section and is located the circular arc section at straight section both ends, straight section is located in the first through-hole, the circular arc section protrusion in the surface of axletree.
According to an embodiment of the present disclosure, the fastener includes a bolt including a head portion and a shank portion, and an elastic washer; the screw part penetrates through the elastic gasket and penetrates into the mounting hole, and the head part and the elastic gasket are positioned on the second side of the wheel.
According to an embodiment of the present disclosure, the mobile device further comprises: the chassis frame comprises two pairs of mounting bearings, and the two pairs of mounting bearings are respectively arranged on the front half part and the rear half part of the mobile equipment; each pair of the mounting bearings comprises two mounting bearings symmetrically arranged along a symmetrical plane of the chassis frame, each axle is mounted on the pair of the mounting bearings, and two wheels are respectively mounted at two ends of each axle.
According to an embodiment of the present disclosure, the mobile device further comprises: and the driving device is used for driving the axle to rotate, so that the axle drives the wheels to rotate through the transmission key.
According to the embodiment of the disclosure, because the technical means that the through hole perpendicular to the axis is formed in the axle, the transmission key penetrates through the through hole, the two ends of the transmission key protrude out of the axle, the axle and the transmission key are installed in the installation hole of the wheel, and the transmission key uniformly transmits torque to the wheel on two sides of the axle is adopted, the technical problem that flat keys are not easily installed on axles with thin tube walls in the related technology is at least partially solved, and the technical effects that key holes are easily machined on the axles, the transmission keys are easily installed on the axles, and the transmission effect is better are achieved.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent from the following description of embodiments of the present disclosure with reference to the accompanying drawings, in which:
fig. 1 schematically shows an application scenario of a mobile device according to an embodiment of the present disclosure;
FIG. 2 schematically illustrates a partially exploded view of a chassis of a mobile device in accordance with an embodiment of the disclosure;
FIG. 3 schematically illustrates a structural schematic of an axle according to an embodiment of the present disclosure;
FIG. 4 schematically illustrates an assembly schematic of an axle and drive key according to an embodiment of the present disclosure;
FIG. 5 schematically illustrates a structural schematic of a wheel according to an embodiment of the present disclosure;
FIG. 6 schematically illustrates an axle and wheel assembly according to an embodiment of the present disclosure;
FIG. 7 schematically illustrates a fastener assembly with a wheel according to an embodiment of the disclosure;
FIG. 8 schematically illustrates a structural schematic of a drive key according to an embodiment of the disclosure;
FIG. 9 schematically illustrates a partially exploded view of a mobile device chassis according to another embodiment of the present disclosure;
FIG. 10 schematically illustrates a structural view of a drive key and an adjustment member according to an embodiment of the present disclosure; and
fig. 11 schematically shows a structural schematic diagram of a mobile device chassis according to an embodiment of the present disclosure.
Detailed Description
Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is illustrative only and is not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.
All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of this specification and should not be interpreted in an idealized or overly formal sense.
Where a convention analogous to "A, B, at least one of C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a component having at least one of A, B and C" would include but not be limited to components having a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.). Where a convention analogous to "A, B or at least one of C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a component having at least one of A, B or C" would include but not be limited to components having a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.).
Embodiments of the present disclosure provide a mobile device including an axle, a drive key, and a wheel. Wherein the axle is provided with a first through hole that penetrates the axle in a direction perpendicular to the axis of the axle. The transmission key penetrates through the first through hole, and two ends of the transmission key protrude out of the surface of the axle. The wheel is provided with a mounting hole for mounting an axle and a transmission key, and the axle drives the wheel to rotate through the transmission key.
Fig. 1 schematically shows an application scenario of a mobile device according to an embodiment of the present disclosure. It should be noted that fig. 1 is only an example of an application scenario in which the embodiments of the present disclosure may be applied to help those skilled in the art understand the technical content of the present disclosure, but does not mean that the embodiments of the present disclosure may not be applied to other devices, systems, environments or scenarios.
As shown in fig. 1, the mobile device of the embodiment of the present disclosure may be, for example, a track inspection robot, which may be used as an inspection device in a place such as a machine room or a warehouse, and the track inspection robot can move along a track 120 and inspect facilities in the place during the movement.
The moving device includes a chassis 200, and the chassis 200 is provided with an axle 210 and wheels 220 connected to both ends of the axle, and the wheels 220 move along the rail 100.
In the related art, the axle 210 and the wheel 220 are connected by a flat key for transmitting torque, the flat key is arranged parallel to the axial direction of the axle, and the surface of the axle 210 needs to be provided with a key groove parallel to the axial direction so as to accommodate the flat key, but for the axle with a thin pipe wall, the thickness of the key groove is not enough, so that the installation of the flat key is difficult.
The mobile equipment provided by the embodiment of the disclosure has the advantages that the transmission key is arranged perpendicular to the axle axis, namely, the transmission key perpendicular to the axle axis is adopted to transmit torque, the wall thickness of the axle is not required, the processing and mounting processes are simpler, and the torque transmission effect is better.
It is understood that the application scenario in fig. 1 is only an example, and the mobile device may be any other mobile device having an axle and a wheel besides a track inspection robot.
Fig. 2 schematically illustrates a partially exploded view of a mobile device chassis 200 according to an embodiment of the disclosure.
Fig. 3 schematically illustrates a structural schematic view of the axle 210 according to an embodiment of the present disclosure.
Fig. 4 schematically illustrates an assembly of the axle 210 and the drive key 230 according to an embodiment of the present disclosure.
Fig. 5 schematically illustrates a structural schematic of a wheel 220 according to an embodiment of the present disclosure.
Fig. 6 schematically illustrates an assembly schematic of an axle 210 and a wheel 220 according to an embodiment of the present disclosure.
As shown in fig. 2 to 6, the mobile device chassis 200 includes an axle 210, wheels 220, and a power key 230.
As shown in fig. 2 and 3, the axle 210 is provided with a first through hole 211, wherein the first through hole 211 penetrates the axle 210 in a direction perpendicular to the axis of the axle 210. The first through hole 211 is provided at a position where the end of the axle 210 is connected to the wheel 220.
According to an embodiment of the present disclosure, the axle 210 may be a hollow structure, i.e., the axle 210 may be a hollow shaft, which may reduce the weight of the axle 210. The cross-section of the axle 210 perpendicular to the axle axis may be, for example, circular.
The first through hole 211 penetrates wall surfaces of both sides of the axle 210 in a diameter direction of the circular cross section. That is, the first through hole 211 penetrates the two wall surfaces of the hollow shaft to form a through hole passing through the center of the circular section.
The driving key 230 may be similar to a flat key, for example, may have a substantially rectangular parallelepiped shape, and the shape and size of the first through hole 211 may be adapted to the shape and size of the driving key 230, for example, the first through hole 211 may have a square shape.
As shown in fig. 4, the driving key 230 penetrates into the first through hole 211 from one side of the axle 210, and both ends of the driving key 230 protrude out of the surface of the axle 210, that is, both ends of the driving key 230 are exposed outside the axle 210.
As shown in fig. 4 and 5, the wheel 220 is provided with a mounting hole 221, and the mounting hole 221 is used for mounting the axle 210 and the power transmission key 230. The mounting hole 221 may be disposed at a central position of a hub of the wheel 220, an end of the axle 210 and the transmission key 230 are fixedly connected to the mounting hole 221, and the axle 210 transmits torque to the wheel 220 through the transmission key 230 to drive the wheel 220 to rotate.
As shown in fig. 5, according to the embodiment of the present disclosure, the mounting hole 221 includes a second through hole 2211 and two blind holes 2212 communicated with the second through hole 2211, wherein an axis of the second through hole 2211 coincides with an axis X-X of the wheel 220, the second through hole 2211 penetrates through a hub of the wheel along an axial direction of the wheel, the blind holes 2212 are grooves which do not penetrate through the hub and have a certain depth, and the two blind holes 2212 are symmetrically arranged along the axis of the second through hole 2211.
Two blind holes 2212 are provided on the surface of a first side of the wheel 220, which may be the side facing the axle, and may also be referred to as the inner side of the wheel. The shape and size of the two blind holes 2212 match the shape and size of the exposed portion of the drive key 230.
During the assembly process, the driving key 230 is inserted into the first through hole 211 of the axle 210, the end of the axle 210 is inserted into the second through hole 2211 of the wheel 220, and the exposed portions of the two ends of the driving key 230 are respectively inserted into the two blind holes 2212. The axle 210 is then fixedly connected to the wheel 220. As shown in fig. 6, after the axle 210 is fixedly connected to the wheel 220, the end of the axle 210 is located in the second through hole 2211 of the wheel, and the portion of the power transmission key 230 protruding from the surface of the axle 210 is located in the two blind holes 2212.
Based on the above, the axle may transmit torque to the wheel 220 through the transmission key 230 to rotate the wheel 220. Compared with a flat key connection mode in the related art, the transmission key disclosed by the embodiment of the disclosure is easier to process and install, can not be influenced even if the axle tube wall is thin, can well transmit torque, has a better transmission effect, and can enable the mobile equipment to run more stably.
The axle 210 and the wheel 220 may be fixedly connected in the following manner.
As shown in fig. 3, the end of the axle 210 may be provided with a connection hole 212, the connection hole 212 extending in the axial direction of the axle, and the connection hole 212 may be provided with, for example, an internal thread.
As shown in fig. 4, the mobile device chassis 200 may further include a fastener 240, the fastener 240 for fixedly connecting the axle 210 and the wheel 220, according to an embodiment of the present disclosure.
Fig. 7 schematically illustrates an assembly of a fastener 240 with a wheel 220 according to an embodiment of the disclosure.
As shown in fig. 4 and 7, the fastener 240 may, for example, have external threads that mate with internal threads of the connection bore 212.
During assembly, the axes of the axle 210, the mounting hole 221 and the fastener 240 are coincident, the end of the axle 210 is inserted into the mounting hole 221 from the first side of the wheel 220, the end of the fastener 240 is inserted into the mounting hole 221 from the second side of the wheel 220 and into the connecting hole 212 of the end of the axle, and then the fastener 240 is fastened in the connecting hole 212 of the axle through the matching of the internal thread and the external thread.
According to an embodiment of the present disclosure, the fastener 240 may include a bolt including a head portion and a shank portion, which may be provided with an external thread, for example, and an elastic washer. The screw portion passes through the spring washer and into the mounting hole 221, with the head of the bolt and the spring washer abutting against the second side of the wheel 220.
In the related art, because the conventional flat key cannot achieve a good transmission effect, a multi-point fixing mode needs to be adopted when the axle 210 is fixedly connected with the wheel 220, that is, a plurality of fixing structures need to be arranged in the circumferential direction of the wheel 220, so that the fixing structures bear part of the transmission function, but the fixing structures are easy to loosen and fall off due to the arrangement. In the mobile equipment of the embodiment of the disclosure, due to the adoption of the vertical transmission key, the torque can be well transmitted, so that the wheel and the axle can be fixed by adopting a single fastener, and the single fastener is coaxial with the rolling axes of the axle and the wheel, so that the fastener only needs to be responsible for tightening the wheel and the axle and does not need to be responsible for transmitting the torque, the load complexity of connection of the single fastener can be reduced, the loosening of the fastener is avoided, the complexity of the connection part of the wheel is simplified, and the use number of the fasteners is reduced. And meanwhile, the elastic pad is added, so that the pretightening force is improved, and the looseness of the fastening piece is further avoided.
Fig. 8 schematically illustrates a structural schematic of a drive key 230 according to an embodiment of the present disclosure.
As shown in fig. 8, according to an embodiment of the present disclosure, the power transmission key 230 may include a straight section 231 and circular arc sections 232 at both ends of the straight section 231. When the transmission key is assembled with the axle, the straight section 231 can be located in the first through hole of the axle, and the arc section 232 protrudes out of the surface of the axle and is exposed outside the first through hole.
The shape and the size of the blind hole on the wheel are matched with the shape and the size of the arc section 232, and when the axle is assembled with the wheel, the two arc sections 232 are respectively arranged in the two blind holes of the wheel.
The track inspection robot in the related art has the advantages that the track inspection robot has a fixed wheel base which cannot be adjusted, but the wheels are assembled through various parts, each part has respective dimensional tolerance, assembly errors can be introduced into each assembly, all the tolerances are accumulated, the dimensional accuracy of the track is not enough, the wheels are not well matched with the track, and the operation is unstable. Therefore, another embodiment of the present disclosure provides a mobile device with an adjustable wheel track.
Fig. 9 schematically illustrates a partially exploded view of a mobile device chassis according to another embodiment of the present disclosure.
As shown in fig. 9, according to the embodiment of the present disclosure, the mobile device chassis 200 may further include an adjusting member 250, the adjusting member 250 may be inserted between the transmission key 230 and the mounting hole 221, and particularly may be inserted between the bottom surface of the blind hole 2212 of the mounting hole 221 and the exposed portion of the transmission key 230, and the adjusting member 250 may be used to adjust the positional relationship between the axle 210 and the wheel 220.
Fig. 10 schematically illustrates a structural schematic of a drive key and an adjustment member according to an embodiment of the present disclosure.
As shown in fig. 9 and 10, according to the embodiment of the present disclosure, the adjusting member 250 may include a plurality of adjusting pads 251, for example, the shape of the adjusting pads 251 matches with the shape of the blind holes 2212, so as to ensure that the adjusting pads 251 and the exposed portions of the driving keys 230 and the blind holes 2212 are flush.
The adjusting shims 251 have a certain thickness, and when the axle 210 and the wheel 220 are assembled, a plurality of adjusting shims 251 are firstly plugged into the blind holes 2212, then the exposed parts of the driving keys 230 are placed into the blind holes 2212, and then the axle 210 and the wheel 220 are fixedly connected through the fasteners 240.
The number of shims 251 used may affect the length of the portion of axle 210 that penetrates wheel 220, and thus the track width between two wheels 220 at either end of axle 210, and thus the track width of the wheels on either side may be increased or decreased by increasing or decreasing the number of shims on either side of the axle. When the number of shims 251 to be provided is increased, the tread between the two wheels 220 can be increased, and when the number of shims 251 to be provided is decreased, the tread between the two wheels 220 can be decreased. Wherein, the number of the adjusting gaskets 251 arranged in the two blind holes 2212 on the same wheel is equal.
Because the transmission key is assembled perpendicular to the axle axis and the exposed part of the transmission key is arranged in the blind hole formed in the surface of the wheel, the position relation between the transmission key and the wheel can be adjusted by increasing or reducing the number of the gaskets, and then the position relation between the axle and the wheel can be adjusted.
Fig. 11 schematically shows a structural schematic diagram of a mobile device chassis according to an embodiment of the present disclosure.
As shown in fig. 6 and 11 in conjunction, the mobile device chassis 200 may further include a chassis frame 260, and the chassis frame 260 includes two longitudinal beams 261 located at both sides of the chassis, and the longitudinal beams 261 extend in the front-rear direction of the mobile device according to an embodiment of the present disclosure.
Two pairs of mounting bearings 262 are fixedly arranged on the chassis frame 260, the mounting bearings 262 can be fixed on the longitudinal beam 261, and the mounting bearings 261 can be seat bearings, for example.
Two pairs of mounting bearings 261 are provided on the front and rear halves of the mobile device chassis 200, respectively, wherein each pair of mounting bearings comprises two mounting bearings symmetrically arranged along the plane of symmetry of the chassis frame. For example, the mounting bearings 261A and 261B in fig. 11 are a pair of bearings provided, for example, at the front half portion of the chassis 200; the mounting bearing 261C and one not shown in the drawings are a pair of bearings provided, for example, in the rear half of the chassis 200.
Each axle is mounted on a pair of mounting bearings, e.g., axle 210A in fig. 11 is mounted on mounting bearing 261A and mounting bearing 261B, enabling axle 210A to rotate relative to chassis frame 260; axle 210B is mounted on mounting bearing 261A and one not shown in the figures so that axle 210B is also able to rotate relative to chassis frame 260.
According to the embodiment of the present disclosure, the mobile device further includes a driving device 270, and the driving device 270 is used for driving the axles 210A and 210B to rotate, so that the axles 210A and 210B drive the wheels to rotate through the transmission keys.
The driving device 270 may be, for example, a motor, and the motor may drive the first and second driving members 210A and 210B to rotate by a belt or the like.
Those skilled in the art will appreciate that various combinations and/or combinations of features recited in the various embodiments and/or claims of the present disclosure can be made, even if such combinations or combinations are not expressly recited in the present disclosure. In particular, various combinations and/or combinations of the features recited in the various embodiments and/or claims of the present disclosure may be made without departing from the spirit or teaching of the present disclosure. All such combinations and/or associations are within the scope of the present disclosure.
The embodiments of the present disclosure have been described above. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although the embodiments are described separately above, this does not mean that the measures in the embodiments cannot be used in advantageous combination. The scope of the disclosure is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be devised by those skilled in the art without departing from the scope of the present disclosure, and such alternatives and modifications are intended to be within the scope of the present disclosure.
Claims (10)
1. A mobile device, comprising:
an axle provided with a first through hole, wherein the first through hole penetrates the axle in a direction perpendicular to an axis of the axle;
the transmission key penetrates through the first through hole, and two ends of the transmission key protrude out of the surface of the axle; and
the wheel is provided with a mounting hole for mounting the axle and the transmission key;
wherein the axle drives the wheels to rotate through the transmission key.
2. The mobile device of claim 1, further comprising:
a fastener for connecting the axle and the wheel;
the end part of the axle is provided with a connecting hole, the end part of the axle penetrates into the mounting hole from the first side of the wheel, and the end part of the fastener penetrates into the mounting hole from the second side of the wheel and is fastened in the connecting hole at the end part of the axle.
3. The mobile device of claim 2, wherein:
the mounting hole comprises a second through hole and two blind holes communicated with the second through hole, the two blind holes are symmetrically arranged along the axis of the second through hole, and the axis of the second through hole is superposed with the axis of the wheel;
the two blind holes are arranged on the surface of the first side of the wheel, and the shapes of the two blind holes are matched with the shape of the part, protruding out of the surface of the axle, of the transmission key;
the end part of the axle is positioned in the second through hole, and the part of the transmission key, which protrudes out of the surface of the axle, is positioned in the two blind holes.
4. The mobile device of claim 1, further comprising:
and the adjusting piece is arranged between the transmission key and the mounting hole and is used for adjusting the position relation between the axle and the wheel.
5. The mobile device of claim 3, further comprising:
the adjusting piece is arranged between the transmission key and the mounting hole;
the shape of the adjusting piece is matched with that of the blind hole, the adjusting piece is arranged between the bottom surface of the blind hole and the transmission key, the adjusting piece comprises a plurality of adjusting gaskets, and the number of the adjusting gaskets arranged in the two blind holes is equal.
6. The mobile device of claim 1, wherein:
the axle is of a hollow structure;
the cross section of the axle perpendicular to the axle axis is circular;
the first through hole penetrates through wall surfaces on both sides of the axle in a diameter direction of the circular cross section.
7. The mobile device of claim 1, wherein:
the transmission key comprises a straight section and arc sections positioned at two ends of the straight section, the straight section is positioned in the first through hole, and the arc sections protrude out of the surface of the axle.
8. The mobile device of claim 2, wherein:
the fastener includes a bolt including a head portion and a shank portion and an elastic washer;
the screw part penetrates through the elastic gasket and penetrates into the mounting hole, and the head part and the elastic gasket are positioned on the second side of the wheel.
9. The mobile device of claim 1, further comprising:
the chassis frame comprises two pairs of mounting bearings, and the two pairs of mounting bearings are respectively arranged on the front half part and the rear half part of the mobile equipment;
wherein each pair of the mounting bearings comprises two mounting bearings symmetrically arranged along a symmetry plane of the chassis frame, and each axle is mounted on one pair of the mounting bearings.
10. The mobile device of claim 1, further comprising:
and the driving device is used for driving the axle to rotate, so that the axle drives the wheels to rotate through the transmission key.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910821574.8A CN112440619A (en) | 2019-08-30 | 2019-08-30 | Mobile device |
| PCT/CN2020/109326 WO2021036831A1 (en) | 2019-08-30 | 2020-08-14 | Moving device and rail inspection robot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910821574.8A CN112440619A (en) | 2019-08-30 | 2019-08-30 | Mobile device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112440619A true CN112440619A (en) | 2021-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910821574.8A Pending CN112440619A (en) | 2019-08-30 | 2019-08-30 | Mobile device |
Country Status (2)
| Country | Link |
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| CN (1) | CN112440619A (en) |
| WO (1) | WO2021036831A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113665606B (en) * | 2021-08-19 | 2022-11-18 | 中铁二十五局集团第三工程有限公司 | A track platform car for tunnel operation |
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| WO2021036831A1 (en) | 2021-03-04 |
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