CN211398438U - Gear transmission structure suitable for driving wheel - Google Patents
Gear transmission structure suitable for driving wheel Download PDFInfo
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- CN211398438U CN211398438U CN201922373346.7U CN201922373346U CN211398438U CN 211398438 U CN211398438 U CN 211398438U CN 201922373346 U CN201922373346 U CN 201922373346U CN 211398438 U CN211398438 U CN 211398438U
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Abstract
The utility model discloses a gear drive structure suitable for drive wheel, include: the device comprises a chassis, two driving wheels and a transmission mechanism; the transmission mechanism includes: the driving motor, the first driving wheel, the second driving wheel, the third driving wheel, the first driven wheel, the second driven wheel, the third driven wheel and the transmission shaft are arranged on the transmission shaft; the transmission shaft is rotationally connected to the chassis; the two driving wheels are respectively connected to two ends of the transmission shaft through keys; the first driving wheel is connected to the motor shaft through a key; the second driving wheel and the third driving wheel are rotationally connected to the motor shaft as a whole; the first driven wheel and the second driven wheel are rotationally connected to the transmission shaft as a whole; the third driven wheel is connected to the transmission shaft through a key. The gear transmission structure suitable for the driving wheel is simple in structure, effectively reduces space occupancy rate, is high in strength, can adapt to multi-stage transmission, and guarantees transmission efficiency.
Description
Technical Field
The utility model relates to a gear drive structure suitable for drive wheel.
Background
In a driving structure of a driving wheel of a conventional transfer robot, a motor and a speed reducer are generally adopted to achieve the purpose of reducing speed and increasing torque or a synchronous belt is adopted to increase torque. The reducer with the small speed ratio in the structure is too large in size, and is inconvenient to mount in a small mounting space. And the synchronous belt structure is poor in strength, large in span and occupied space.
SUMMERY OF THE UTILITY MODEL
The utility model provides a gear drive structure suitable for drive wheel adopts following technical scheme:
a gear transmission structure adapted for a drive wheel, comprising: the device comprises a chassis, two driving wheels and a transmission mechanism; the transmission mechanism includes: the driving motor, the first driving wheel, the second driving wheel, the third driving wheel, the first driven wheel, the second driven wheel, the third driven wheel and the transmission shaft are arranged on the transmission shaft; the transmission shaft is rotationally connected to the chassis; the two driving wheels are respectively connected to two ends of the transmission shaft through keys; the first driving wheel, the second driving wheel and the third driving wheel are sequentially sleeved on the periphery of a motor shaft of the driving motor; the first driving wheel is connected to the motor shaft through a key; the second driving wheel and the third driving wheel are rotationally connected to the motor shaft as a whole; the first driven wheel, the second driven wheel and the third driven wheel are sequentially sleeved on the periphery of the transmission shaft; the first driven wheel and the second driven wheel are rotationally connected to the transmission shaft as a whole; the third driven wheel is connected to the transmission shaft through a key; the first driven wheel, the second driven wheel and the third driven wheel are respectively meshed with the first driving wheel, the second driving wheel and the third driving wheel.
Further, the second driving wheel is fixedly connected to the third driving wheel through welding; first rotating bearings are arranged between the second driving wheel and the transmission shaft and between the third driving wheel and the transmission shaft.
Furthermore, one end of the motor shaft, which is far away from the motor shell of the driving motor, is provided with an axial fixing piece for limiting the axial positions of the second driving wheel and the third driving wheel; the axial fixing member is fixed to one end of the motor shaft and contacts the first rotating bearing.
Further, a first clamp spring is arranged between the axial fixing piece and the first rotating bearing; the first clamp spring at least partially extends into a clamp spring groove formed by the third driving wheel.
Further, the first driven wheel is fixedly connected to the second driven wheel through welding; and a second rotating bearing is arranged between the first driven wheel and the motor shaft and between the second driven wheel and the motor shaft.
Furthermore, a positioning flange and a limiting shaft sleeve for limiting the axial position of the third driven wheel are sleeved on the periphery of the transmission shaft; the positioning flange and the limiting shaft sleeve are respectively arranged on two sides of the third driven wheel and are in contact with two sides of the third driven wheel.
Further, one end of the limiting shaft sleeve, which is far away from the third driven wheel, is contacted with one end of the second rotating bearing.
Further, a second clamp spring is arranged between the shaft sleeve and the second rotating bearing; the second clamp spring at least partially extends into a clamp spring groove formed by the second driven wheel.
Furthermore, the transmission shaft is provided with a limiting bulge which is used for matching with the positioning flange to limit the axial positions of the first driven wheel, the second driven wheel and the third driven wheel; the limiting protrusion contacts the other end of the second rotating bearing.
Furthermore, the chassis is provided with two supporting bearing seats which are respectively positioned at two ends of the transmission shaft to support the transmission shaft; the transmission shaft is rotatably connected to the support bearing seat.
The utility model discloses an useful part lies in the gear drive structure who is applicable to the drive wheel that provides and carries out the transmission through a plurality of gear structure and realize the deceleration increase moment of torsion, simple structure has effectively reduced the space occupancy to the gear is the steel construction, and intensity is higher, can adapt to multistage transmission, guarantees transmission efficiency.
Drawings
Fig. 1 is a schematic view of a gear transmission structure suitable for a driving wheel of the present invention;
FIG. 2 is a schematic view of the first driving wheel, the second driving wheel and the third driving wheel of the gear transmission structure for driving wheels in FIG. 1 mounted on a motor shaft;
FIG. 3 is a schematic view of the first driven wheel, the second driven wheel, and the third driven wheel of the geared arrangement for the drive wheel of FIG. 1 mounted to a drive shaft;
fig. 4 is a partially enlarged view of the gear transmission structure of fig. 3 adapted to the driving wheel.
The gear transmission structure 10 is suitable for a driving wheel, a chassis 11, a driving wheel 12, a transmission mechanism 13, a driving motor 131, a first driving wheel 132, a second driving wheel 133, a third driving wheel 134, a first rotating bearing 135, an axial fixing piece 136, a snap spring 137, a snap spring groove 138, a first driven wheel 139, a second driven wheel 140, a third driven wheel 141, a second rotating bearing 142, a positioning flange 143, a limiting protrusion 144, a limiting shaft sleeve 145, a second snap spring 146, a transmission shaft 147, a supporting shaft bearing seat 148, a supporting bearing 149, a second shaft sleeve 150, a limiting step 151 and a motor seat 152.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 4, a gear transmission structure 10 for a driving wheel includes: a chassis 11, two drive wheels 12 and a transmission 13. Wherein, drive mechanism 13 includes: the driving device comprises a driving motor 131, a motor base 152, a first driving wheel 132, a second driving wheel 133, a third driving wheel 134, a first driven wheel 139, a second driven wheel 140, a third driven wheel 141 and a transmission shaft 147. The driving motor 131 is fixed to the motor mount 152. The motor mount 152 is mounted to the chassis 11. The drive shaft 147 is rotatably connected to the chassis 11. The two drive wheels 12 are respectively keyed to both ends of the drive shaft 147. The first driving pulley 132, the second driving pulley 133 and the third driving pulley 134 are sequentially sleeved on the periphery of the motor shaft of the driving motor 131. The first drive pulley 132 is keyed to the motor shaft. The second drive pulley 133 and the third drive pulley 134 are rotatably connected to the motor shaft as a unit. The first driven wheel 139, the second driven wheel 140 and the third driven wheel 141 are sequentially sleeved on the periphery of the transmission shaft 147. The first driven pulley 139 and the second driven pulley 140 are rotatably connected to the transmission shaft 147 as a unit. The third driven wheel 141 is connected to the transmission shaft 147 by a key. The first driven pulley 139, the second driven pulley 140, and the third driven pulley 141 are engaged with the first driving pulley 132, the second driving pulley 133, and the third driving pulley 134, respectively.
In operation, the driving motor 131 drives the motor 131 to rotate. The motor shaft drives the first driving wheel 132 to rotate through the key. The first driving wheel 132 rotates to drive the first driven wheel 139 engaged therewith to rotate. Since the first driven wheel 139 and the second driven wheel 140 are rotatably connected to the transmission shaft 147 as a unit, the first driven wheel 139 rotates while the second driven wheel 140 rotates. The second driven wheel 140 rotates to drive the second driving wheel 133 engaged therewith to rotate. Since the second driving pulley 133 and the third driving pulley 134 are rotatably connected to the motor shaft as a whole, the second driving pulley 133 drives the third driving pulley 134 to rotate simultaneously. The third driving wheel 134 rotates to drive the third driven wheel 141 engaged with the third driving wheel to rotate. The third driven wheel 141 drives the transmission shaft 147 to rotate relative to the chassis 11 through a key structure. At this time, the two ends of the transmission shaft 147 drive the driving wheels 12 at the two ends of the transmission shaft 147 to rotate through the key structure, thereby realizing driving.
Particularly, gear drive structure 10 suitable for the drive wheel carries out multistage transmission through a plurality of gear structure and realizes the increase moment of torsion of deceleration, and simple structure has effectively reduced the space occupancy to the gear is the steel construction, and intensity is higher, can adapt to multistage transmission, guarantees transmission efficiency.
As a specific embodiment, the second drive wheel 133 is fixedly connected to the third drive wheel 134 by welding to ensure stability of the second drive wheel 133 and the third drive wheel 134 as a unitary structure. First rotating bearings 135 are arranged between the second driving wheel 133 and the third driving wheel 134 and the transmission shaft 147 so as to ensure the stability of synchronous rotation of the second driving wheel 133 and the third driving wheel 134.
Further, an axial fixing member 136 is provided at an end of the motor shaft remote from the motor housing of the driving motor 131. The axial fixings 136 serve to limit the axial position of the second drive pulley 133 and the third drive pulley 134. Specifically, the axial fixing member 136 is fixed to one end of the motor shaft and contacts the first rotating bearing 135, thereby limiting the axial displacement of the first rotating bearing 135, and thus the third driving pulley 134.
Further, a first snap spring 137 is disposed between the axial fixing member 136 and the first rotating bearing 135. The first circlip 137 extends at least partially into a circlip groove 138 formed in the third drive wheel 134 to define the axial position of the third drive wheel 134, i.e., the axial position of the second drive wheel 133 and the third drive wheel 134 as a unitary structure.
As a specific embodiment, the first driven wheel 139 is fixedly connected to the second driven wheel 140 by welding to ensure stability of the first driven wheel 139 and the second driven wheel 140 as a whole structure. A second rotating bearing 142 is arranged between the first driven wheel 139 and the second driven wheel 140 and the motor shaft to ensure the stability of the synchronous rotation of the second driving wheel 133 and the third driving wheel 134.
Further, the periphery of the transmission shaft 147 is also sleeved with a positioning flange 143 and a limiting bushing 145. The positioning flange 143 and the restraining boss 145 serve to restrain the axial position of the third driven wheel 141. Specifically, the positioning flange 143 and the restraining boss 145 are respectively disposed at both sides of the third driven wheel 141 and contact both sides of the third driven wheel 141.
As a further embodiment, the transmission shaft 147 is formed with a stopper protrusion 144. The limiting projection 144 is used for matching with the positioning flange 143 to limit the axial positions of the first driven wheel 139, the second driven wheel 140 and the third driven wheel 141. Specifically, the stopper protrusion 144 contacts the other end of the second rotation bearing 142.
Further, an end of the restraining bush 145, which is far from the third driven wheel 141, contacts an end of the second rotation bearing 142. A second snap spring 146 is arranged between the shaft sleeve and the second rotating bearing 142. The second circlip 146 extends at least partially into the circlip groove 138 formed in the second driven wheel 140 to define the axial position of the second driven wheel 140, i.e., the axial position of the first driven wheel 139 and the second driven wheel 140 as a unitary structure.
As a specific embodiment, the chassis 11 is provided with two support bearing seats 148. Support bearing blocks 148 are respectively located at both ends of the driving shaft 147 to support the driving shaft 147. Specifically, the drive shaft 147 is rotatably connected to the support bearing housing 148.
In the above solution, the supporting bearing seat 148 is sleeved on the outer circumference of the transmission shaft 147. A support bearing 149 is provided between the transmission shaft 147 and the support bearing seat 148 to ensure the stability of the rotation of the transmission shaft 147 relative to the support bearing seat 148. The outer periphery of the transmission shaft 147 is also provided with a second bushing 150. The second bushing 150 serves to define a support bearing 149 and thus the axial position of the drive shaft 147 relative to the support bearing seat 148. The drive shaft 147 is also formed with a limit step 151 for engaging the second bushing 150 to limit the axial position of the drive shaft 147.
Specifically, the stopping step 151 contacts one side of the supporting bearing housing 148. Both ends of the second sleeve 150 contact the other side of the supporting bearing housing 148 and the driving wheel 12, respectively.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.
Claims (10)
1. A gear transmission structure adapted for a drive wheel, comprising: the device comprises a chassis, two driving wheels and a transmission mechanism; characterized in that, drive mechanism includes: the driving motor, the first driving wheel, the second driving wheel, the third driving wheel, the first driven wheel, the second driven wheel, the third driven wheel and the transmission shaft are arranged on the transmission shaft; the transmission shaft is rotationally connected to the chassis; the two driving wheels are respectively connected to two ends of the transmission shaft through keys; the first driving wheel, the second driving wheel and the third driving wheel are sequentially sleeved on the periphery of a motor shaft of the driving motor; the first driving wheel is connected to the motor shaft through a key; the second driving wheel and the third driving wheel are rotationally connected to the motor shaft as a whole; the first driven wheel, the second driven wheel and the third driven wheel are sequentially sleeved on the periphery of the transmission shaft; the first driven wheel and the second driven wheel are rotationally connected to the transmission shaft as a whole; the third driven wheel is connected to the transmission shaft through a key; the first driven wheel, the second driven wheel and the third driven wheel are respectively meshed with the first driving wheel, the second driving wheel and the third driving wheel.
2. The gear transmission structure for a drive wheel according to claim 1,
the second driving wheel is fixedly connected to the third driving wheel through welding; and first rotating bearings are arranged between the second driving wheel and the transmission shaft and between the third driving wheel and the transmission shaft.
3. The gear transmission structure for a drive wheel according to claim 2,
an axial fixing piece used for limiting the axial positions of the second driving wheel and the third driving wheel is arranged at one end, far away from the motor shell of the driving motor, of the motor shaft; the axial fixing member is fixed to one end of the motor shaft and contacts the first rotational bearing.
4. The gear transmission structure for a drive wheel according to claim 3,
a first clamp spring is arranged between the axial fixing piece and the first rotating bearing; and at least part of the first clamp spring extends into a clamp spring groove formed by the third driving wheel.
5. The gear transmission structure for a drive wheel according to claim 1,
the first driven wheel is fixedly connected to the second driven wheel through welding; and a second rotating bearing is arranged between the first driven wheel and the motor shaft, and between the second driven wheel and the motor shaft.
6. The gear transmission structure for a driving wheel according to claim 5,
the periphery of the transmission shaft is further sleeved with a positioning flange and a limiting shaft sleeve for limiting the axial position of the third driven wheel; the positioning flange and the limiting shaft sleeve are respectively arranged on two sides of the third driven wheel and are in contact with two sides of the third driven wheel.
7. The gear transmission structure for a driving wheel according to claim 6,
one end of the limiting shaft sleeve, which is far away from the third driven wheel, is contacted with one end of the second rotating bearing.
8. The gear transmission structure for a driving wheel according to claim 7,
a second clamp spring is arranged between the shaft sleeve and the second rotating bearing; and at least part of the second clamp spring extends into a clamp spring groove formed by the second driven wheel.
9. The gear transmission structure for a driving wheel according to claim 8,
the transmission shaft is provided with a limiting bulge which is used for matching with the positioning flange to limit the axial positions of the first driven wheel, the second driven wheel and the third driven wheel; the limiting protrusion contacts the other end of the second rotating bearing.
10. The gear transmission structure for a drive wheel according to claim 1,
the chassis is provided with two supporting bearing seats which are respectively positioned at two ends of the transmission shaft to support the transmission shaft; the transmission shaft is rotatably connected to the support bearing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922373346.7U CN211398438U (en) | 2019-12-26 | 2019-12-26 | Gear transmission structure suitable for driving wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922373346.7U CN211398438U (en) | 2019-12-26 | 2019-12-26 | Gear transmission structure suitable for driving wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211398438U true CN211398438U (en) | 2020-09-01 |
Family
ID=72224320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922373346.7U Active CN211398438U (en) | 2019-12-26 | 2019-12-26 | Gear transmission structure suitable for driving wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211398438U (en) |
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2019
- 2019-12-26 CN CN201922373346.7U patent/CN211398438U/en active Active
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