CN209781627U - Driving wheel gear box - Google Patents
Driving wheel gear box Download PDFInfo
- Publication number
- CN209781627U CN209781627U CN201920138218.1U CN201920138218U CN209781627U CN 209781627 U CN209781627 U CN 209781627U CN 201920138218 U CN201920138218 U CN 201920138218U CN 209781627 U CN209781627 U CN 209781627U
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- shaft hole
- drive wheel
- installation department
- transmission chamber
- box
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Abstract
The utility model provides a drive wheel gear box belongs to drive wheel technical field, and it includes: the box, it extends respectively to be formed with wheel installation department, motor installation department about following the flange portion including the flange portion that is used for connecting the frame, inwards digs along wheel installation department left end and is equipped with the second grade transmission chamber, digs downwards along motor installation department upper end and is equipped with the one-level transmission chamber, inwards has seted up first shaft hole, second shaft hole respectively along motor installation department right side, and first shaft hole runs through to the one-level transmission chamber, and the second shaft hole runs through to the second grade transmission chamber. The utility model has the advantages of high transmission efficiency and stable quality.
Description
Technical Field
The utility model belongs to the technical field of the drive wheel, a drive wheel gear box is related to.
Background
The driving wheel of the electric vehicle generally includes a motor, a transmission mechanism connected to an output shaft of the motor, a wheel assembly connected to an output end of the transmission mechanism, and a gear box for mounting the motor and the transmission mechanism.
In order to guarantee the driving ability of the forklift, the driving wheel gearbox is usually provided with a secondary transmission mechanism in the gearbox, the transmission mechanism comprises two pairs of gear sets to realize secondary speed reduction, and the working principle is as follows: the motor is connected with a first-stage input gear, two ends of the speed reducing shaft are respectively connected with a first-stage output gear, a second-stage input gear, the wheel assembly is connected with a second-stage output gear, the first-stage input gear is meshed with the first-stage input gear, the second-stage input gear is meshed with the second-stage output gear, the speed reducing shaft is used for transmission, and the gear box is hinged to two ends of the speed reducing shaft.
In the prior art, in order to integrally insert the reduction shaft, the primary output gear and the secondary input gear, the gear box is usually divided into a box body and a box cover, and the box body and the box cover are respectively hinged with two ends of the reduction shaft. Due to the fact that the box body and the box cover are processed in a split mode, coaxiality of two ends of the reduction shaft hinged to the gear box is poor, the coaxiality can be affected by assembling accuracy between the box body and the box cover, and therefore transmission efficiency of the driving wheel is poor and quality is unstable.
Therefore, it is necessary to design a driving wheel gear box with high transmission efficiency and stable quality.
Disclosure of Invention
The utility model aims at having the above-mentioned problem to current technique, proposed: driving wheel gear box with high transmission efficiency and stable quality
The purpose of the utility model can be realized by the following technical proposal: a drive wheel gearbox comprising:
the box, it extends respectively to be formed with wheel installation department, motor installation department about following the flange portion including the flange portion that is used for connecting the frame, inwards digs along wheel installation department left end and is equipped with the second grade transmission chamber, digs downwards along motor installation department upper end and is equipped with the one-level transmission chamber, inwards has seted up first shaft hole, second shaft hole respectively along motor installation department right side, and first shaft hole runs through to the one-level transmission chamber, and the second shaft hole runs through to the second grade transmission chamber.
As a further improvement, the utility model discloses a third shaft hole has inwards been seted up along motor installation department right side, and the third shaft hole runs through to the second grade transmission chamber.
As a further improvement of the utility model, the first shaft hole, the second shaft hole and the third shaft hole are arranged in a triangular shape.
As the utility model discloses a further improvement, the box is formed with first bearing step along the wheel installation department left end indent, and the box is sunken left along the inner wall in one-level transmission chamber to be formed with second bearing step, third bearing step, first bearing step, third bearing step and the coaxial setting in third shaft hole, second bearing step and the coaxial setting in second shaft hole.
As a further improvement, the right side of the motor installation part is embedded with a second end cover and a third end cover, and the second end cover and the third end cover are respectively embedded and sealed in a second shaft hole and a third shaft hole.
As a further improvement, the second end cover is formed with a bearing cavity close to the concave part on one side of the one-level transmission cavity, and the bearing cavity is coaxially arranged with the second shaft hole.
As the utility model discloses a further improvement, the front side of box is inlayed and is equipped with the portal mount pad, and the embedded portal axle sleeve that is equipped with of portal mount pad, portal axle sleeve are used for supporting the bottom of fork truck portal.
As a further improvement, the second case lid of sealing one-level transmission chamber is installed to the upside of motor installation department, and second case lid middle part is equipped with the arc arch, and the arc arch is formed with the gear and holds the chamber near one side indent in first transmission chamber.
As a further improvement, the oil injection holes communicated with the second-stage transmission cavity and the first-stage transmission cavity are also respectively arranged on the wheel mounting part and the motor mounting part.
As a further improvement of the utility model, the left end of the wheel mounting part is in the shape of a round platform.
Based on the technical scheme, the embodiment of the utility model provides a can produce following technological effect at least:
1. The second shaft hole for hinging and supporting the speed reducing shaft in the box body is formed by one-step processing, so that the coaxiality of two ends of the speed reducing shaft is ensured, the transmission efficiency of the driving wheel is further improved, the coaxiality is not easily influenced by the manual assembly precision, and the product quality is stable.
2. through setting up the third shaft hole for the shaft right-hand member can stretch out to one-level transmission chamber, and the workman can pass the one-level transmission chamber and install, adjust, fix etc. work to the shaft right-hand member, thereby simplifies the installation technology and improves installation quality.
3. During practical application, the portal mounting seats on the two driving wheels support the bottom of the forklift portal together, so that the portal does not need to be mounted on a forklift frame, the portal is mounted more conveniently, and the gear box is more practical.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
Fig. 2 is a schematic structural view of another angle of a preferred embodiment of the present invention.
FIG. 3 is an assembly application diagram of the present invention
Fig. 4 is a right side view of fig. 3.
3 fig. 3 5 3 is 3 a 3 cross 3- 3 sectional 3 view 3 at 3 a 3- 3 a 3 in 3 fig. 3 4 3. 3
In the figure, 110, a box body; 110a, oil holes; 111. a flange portion; 112. a wheel mounting portion; 1121. a secondary transmission cavity; 113. a motor mounting portion; 1131. a primary transmission cavity; 114. a first shaft hole; 115. a second shaft hole; 116. a third shaft hole; 117. a second bearing step; 118. a third bearing step; 119. a first bearing step; 120. a second end cap; 121. a bearing cavity; 130. a third end cap; 140. a second cover; 141. a gear receiving cavity; 150. a gantry mounting base; 151. portal axle sleeve.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 5, the present drive wheel gear box includes:
The box body 110 includes a flange portion 111 for connecting the frame, a wheel mounting portion 112 and a motor mounting portion 113 are formed by extending along the left and right sides of the flange portion 111, a secondary transmission cavity 1121 is formed by digging inwards along the left end of the wheel mounting portion 112, a primary transmission cavity 1131 is formed by digging downwards along the upper end of the motor mounting portion 113, a first shaft hole 114 and a second shaft hole 115 are formed inwards along the right side of the motor mounting portion 113, the first shaft hole 114 penetrates through the primary transmission cavity 1131, and the second shaft hole 115 penetrates through the secondary transmission cavity 1121.
That is to say, box 110 in this application is integrated into one piece, and the second shaft hole 115 that is used for articulated support speed reduction shaft in the box 110 is one shot forming moreover to guaranteed the axiality at speed reduction shaft both ends, and then improved the transmission efficiency of drive wheel, and this axiality is difficult for receiving the influence of manual assembly precision, and product quality is stable.
A third shaft hole 116 is formed along the right side of the motor mounting portion 113, and the third shaft hole 116 penetrates through the secondary transmission cavity 1121.
Through the third shaft hole 116, the right end of the wheel shaft can extend out of the first-stage transmission cavity 1131, and a worker can install, adjust, fix and the like the right end of the wheel shaft through the first-stage transmission cavity 1131, so that the installation process is simplified and the installation quality is improved.
Preferably, the first shaft hole 114, the second shaft hole 115 and the third shaft hole 116 are arranged in a triangular shape, so that the space utilization rate of the gearbox is improved, and the overall structure is more compact.
The box body 110 is inwards recessed along the left end of the wheel mounting portion 112 to form a first bearing step 119, the box body 110 is inwards recessed along the inner wall of the first-stage transmission cavity 1131 to form a second bearing step 117 and a third bearing step 118, the first bearing step 119 and the third bearing step 118 are coaxially arranged with the third shaft hole 116, and the second bearing step 117 and the second shaft hole 115 are coaxially arranged, so that the overall structure of the gearbox is more compact on the premise of meeting the mounting requirements.
The second and third caps 120 and 130 are fitted to the right side of the motor mounting portion 113, and the second and third caps 120 and 130 are fitted into and close the second and third shaft holes 115 and 116, respectively, to close the right side of the motor mounting portion 113.
In addition, a bearing cavity 121 is formed in one side of the second end cover 120 close to the first-stage transmission cavity 1131 in a concave manner, the bearing cavity 121 and the second shaft hole 115 are coaxially arranged, a bearing can be embedded in the bearing cavity 121 to support the speed reduction shaft in a hinged manner, and the second end cover 120 and the second shaft hole 115 are tightly attached to ensure the coaxiality of two ends of the speed reduction shaft.
The second cover 140 for closing the first-stage transmission cavity 1131 is installed on the upper side of the motor installation part 113, an arc-shaped protrusion is arranged in the middle of the second cover 140, and a gear accommodating cavity 141 is formed in the concave part of one side of the arc-shaped protrusion close to the first transmission cavity. The second cover 140 is used to close the upper opening of the first stage transmission cavity 1131 and avoid interference with the transmission gear by providing the gear accommodating cavity 141, and the second case 110 is compact and light.
Oil holes 110a communicated with the secondary transmission cavity 1121 and the primary transmission cavity 1131 are further formed in the wheel mounting portion 112 and the motor mounting portion 113 respectively, so that lubricating oil can be conveniently injected inwards after the secondary transmission cavity 1121 and the primary transmission cavity 1131 are integrally sealed, and transmission efficiency is improved.
The front side of the box body 110 is embedded with a door frame mounting seat 150, a door frame shaft sleeve 151 is embedded in the door frame mounting seat 150, and the door frame shaft sleeve 151 is used for supporting the bottom of a forklift door frame.
In practical application, two drive wheels are usually installed on the forklift, two drive wheel mirror images are arranged on the left side and the right side of the forklift, and the portal mounting seats 150 on the two drive wheels support the bottom of the forklift portal together, so that the portal does not need to be mounted on a frame of the forklift again, the portal is mounted more conveniently, and the gear box is more practical.
In this application, the left end of wheel installation portion 112 is round platform form setting to under the prerequisite of guaranteeing wheel installation portion 112 actual installation requirement, further compress the volume of box 110, manufacturing cost is lower.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. A drive wheel gearbox, comprising:
The box, it extends respectively to be formed with wheel installation department, motor installation department about following the flange portion including the flange portion that is used for connecting the frame, inwards digs along wheel installation department left end and is equipped with the second grade transmission chamber, digs downwards along motor installation department upper end and is equipped with the one-level transmission chamber, inwards has seted up first shaft hole, second shaft hole respectively along motor installation department right side, and first shaft hole runs through to the one-level transmission chamber, and the second shaft hole runs through to the second grade transmission chamber.
2. A drive wheel gearbox according to claim 1 wherein: a third shaft hole is formed inwards along the right side of the motor mounting part and penetrates through the secondary transmission cavity.
3. A drive wheel gearbox according to claim 2 wherein: the first shaft hole, the second shaft hole and the third shaft hole are arranged in a triangular mode.
4. A drive wheel gearbox according to claim 3 wherein: the box is concave inwards along wheel installation portion left end and is formed with first bearing step, and the box is sunken left along the inner wall in one-level transmission chamber and is formed with second bearing step, third bearing step, and first bearing step, third bearing step and third shaft hole coaxial arrangement, second bearing step and second shaft hole coaxial arrangement.
5. A drive wheel gearbox according to claim 3 wherein: and a second end cover and a third end cover are embedded on the right side of the motor mounting part and are respectively embedded into and seal the second shaft hole and the third shaft hole.
6. the drive wheel gearbox as set forth in claim 5, wherein: and one side of the second end cover, which is close to the primary transmission cavity, is concavely provided with a bearing cavity, and the bearing cavity and the second shaft hole are coaxially arranged.
7. A drive wheel gearbox according to claim 1 wherein: the front side of box inlays and is equipped with the portal mount pad, and the embedded portal axle sleeve that is equipped with of portal mount pad, portal axle sleeve are used for supporting the bottom of fork truck portal.
8. A drive wheel gearbox according to claim 1 wherein: the second case lid of sealing one-level transmission chamber is installed to the upside of motor installation department, and second case lid middle part is equipped with the arc arch, and the arc arch is close to one side indent in first transmission chamber and is formed with the gear and holds the chamber.
9. A drive wheel gearbox according to claim 1 wherein: and oil injection holes communicated with the secondary transmission cavity and the primary transmission cavity are also formed in the wheel mounting part and the motor mounting part respectively.
10. a drive wheel gearbox according to claim 1 wherein: the left end of the wheel mounting part is arranged in a round table shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920138218.1U CN209781627U (en) | 2019-01-25 | 2019-01-25 | Driving wheel gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920138218.1U CN209781627U (en) | 2019-01-25 | 2019-01-25 | Driving wheel gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209781627U true CN209781627U (en) | 2019-12-13 |
Family
ID=68793881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920138218.1U Active CN209781627U (en) | 2019-01-25 | 2019-01-25 | Driving wheel gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209781627U (en) |
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2019
- 2019-01-25 CN CN201920138218.1U patent/CN209781627U/en active Active
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