CN215944292U - Wheel rim driving device - Google Patents
Wheel rim driving device Download PDFInfo
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- CN215944292U CN215944292U CN202122624728.XU CN202122624728U CN215944292U CN 215944292 U CN215944292 U CN 215944292U CN 202122624728 U CN202122624728 U CN 202122624728U CN 215944292 U CN215944292 U CN 215944292U
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- reduction gear
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Abstract
The utility model provides a wheel driving device, which comprises dual driving assemblies oppositely arranged in an electric forklift, wherein each driving assembly comprises a wheel speed reducer, a flange plate and a driving unit; the hub reduction gear and the driving unit are respectively connected with a flange plate and fixed in a frame of the electric forklift through the flange plate; a through hole is formed in the central axis of the flange plate, and the driving unit penetrates through the through hole through a connecting shaft and is connected with the hub reduction gear; an oil passage is arranged in the flange plate, an oil port at one end of the oil passage is positioned on the side face of the flange plate, and an oil port at the other end of the oil passage is positioned on the end face, close to the wheel reduction gear, of the flange plate and is communicated with a corresponding oil passage of the wheel reduction gear. The device can complete the maintenance of the oil circuit without disassembling the driving assembly; a connecting shaft is adopted between the driving unit and the wheel-side reducer to transmit torque, so that later-stage disassembly and assembly and maintenance are facilitated, and the maintenance cost is reduced; the universal driving device has universality aiming at driving units with different volumes.
Description
Technical Field
The utility model relates to a wheel edge driving device, and belongs to the technical field of electric forklifts.
Background
At present, wheel-side driving arrangement forms of large-tonnage electric forklifts mostly adopt double-motor independent driving arrangement forms, the double-motor independent driving is that a left motor and a right motor are respectively connected with a left wheel-side reducer and a right wheel-side reducer, and two driving wheels are independently controlled and driven by two controllers, so that the driving and walking functions of the whole forklift are realized.
The restriction of current technical scheme to the motor size is great, increases along with motor power demand, and motor overall dimension increases, and when motor overall dimension and wheel reduction gear hydraulic fluid port distribution circle size were close, then can't realize that the motor wholly passes the connection flange dish, and application scope is narrower. Under the condition that the oil circuit in the connecting flange plate is blocked or leaked, the connecting flange plate can only be dismantled and replaced, and is inconvenient to maintain.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, provides a wheel-side driving device, realizes the maintenance of an oil way without disassembling a driving assembly, and has universality.
In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:
the utility model provides a wheel-side driving device, which comprises dual driving assemblies oppositely arranged in an electric forklift, wherein each driving assembly comprises a wheel-side speed reducer, a flange plate and a driving unit,
the hub reduction gear and the driving unit are respectively connected with a flange plate and are fixed in a frame of the electric forklift through the flange plate;
a through hole is formed in the central axis of the flange plate, and the driving unit penetrates through the through hole through a connecting shaft to be connected with the hub reduction gear;
and an L-shaped oil way is arranged in the flange plate, an oil port at one end of the oil way is positioned on the side surface of the flange plate, and an oil port at the other end of the oil way is positioned on the end surface of the flange plate close to the wheel-side speed reducer and is communicated with a corresponding oil way of the wheel-side speed reducer.
The oil port on the side face of the flange plate is connected to a hydraulic brake system of the whole vehicle through a hydraulic pipeline, and the oil port on the end face of the flange plate is communicated with a corresponding oil way of the wheel-side speed reducer, so that the braking and cooling effects are finally realized.
Preferably, the number of the oil passages is five, and the oil passages are respectively a cooling oil inlet passage, a cooling oil return passage, a parking brake oil passage, a service brake oil passage and a cooling oil discharge passage,
a first cooling oil inlet of the cooling oil inlet path is positioned on the side surface of the flange plate, and a second cooling oil inlet is positioned on the end surface of the flange plate close to the hub reduction gear;
a first cooling oil return port of the cooling oil return path is positioned on the side surface of the flange plate, and a second cooling oil return port is positioned on the end surface of the flange plate close to the hub reduction gear;
a first parking brake oil port of the parking brake oil way is positioned on the side surface of the flange plate, and a second parking brake oil port is positioned on the end surface of the flange plate close to the hub reduction gear;
a first service brake oil port of the service brake oil way is positioned on the side surface of the flange plate, and a second service brake oil port is positioned on the end surface of the flange plate close to the wheel hub reducer;
and a first cooling oil discharge port of the cooling oil discharge way is positioned on the side surface of the flange plate, and a second cooling oil discharge port is positioned on the end surface of the flange plate close to the wheel reduction gear.
The first cooling oil inlet, the first cooling oil return opening, the first parking braking oil opening, the first traveling braking oil opening and the first cooling oil discharging opening can also be used as maintenance windows, and maintenance work of an oil way is achieved.
Preferably, the flange plate is further provided with an air release plug opening, and the air release plug opening is in an arc-shaped notch shape.
Preferably, a frame mounting hole is formed in the annular boss of the flange plate close to the driving unit, and the flange plate penetrates through the frame mounting hole through a first connecting piece and is fixedly connected with the frame.
Preferably, the number of the frame mounting holes is 10, and the frame mounting holes are uniformly distributed on the annular boss of the flange close to the driving unit.
Preferably, the flange plate is provided with a wheel reduction gear mounting hole at the end part close to the wheel reduction gear, and the flange plate penetrates through the wheel reduction gear mounting hole through a second connecting piece to be fixedly connected with the wheel reduction gear.
Preferably, the flange plate is provided with a driving unit mounting hole at an end portion close to the driving unit, and the flange plate penetrates through the driving unit mounting hole through a third connecting piece to be fixedly connected with the driving unit.
Preferably, key grooves are formed in the wheel-side speed reducer and the driving unit, and key parts matched with the key grooves are arranged at two ends of the connecting shaft.
Specifically, the key portion may be a spline or a flat key, and power transmission between the drive unit and the hub reduction gear is realized by engagement of the spline or the flat key.
Compared with the prior art, the utility model has the following beneficial effects:
the device leads the oil drain channel and the brake channel of the wheel hub reducer to the circular outer leakage surface of the connecting flange plate in an oil way, so that the maintenance of the oil way can be realized without disassembling the driving assembly;
a connecting shaft is adopted between the driving unit and the wheel-side reducer to transmit torque, so that later-stage disassembly and assembly and maintenance are facilitated, and the maintenance cost is reduced; the universal driving device has universality aiming at driving units with different volumes.
Drawings
FIG. 1 is a schematic illustration of a dual drive assembly of the wheel-side drive;
FIG. 2 is a schematic view of a drive assembly of the wheel-side drive apparatus;
FIG. 3 is a right side view of the flange configuration of the wheel-side drive assembly;
FIG. 4 is a left side view of the flange configuration of the wheel-side drive assembly;
FIG. 5 is a cross-sectional view of a drive assembly of the wheel-side drive;
in the figure: 1. a drive assembly; 2. a hub reduction gear; 3. a flange plate; 4. a drive unit; 5. a frame; 6. a connecting shaft; 7. a first cooling oil inlet; 8. a first cooling oil return port; 9. a first parking brake oil port; 10. a first driving brake oil port; 11. a first cooling oil discharge port; 12. a second cooling oil inlet; 13. a second cooling oil return port; 14. a second parking brake oil port; 15. a second service brake oil port; 16. a second cooling oil discharge port; 17. a vent plug port; 18. a frame mounting hole; 19. a first connecting member; 20. a hub reduction gear mounting hole; 21. a second connecting member; 22. a drive unit mounting hole; 23. and a third connecting member.
Detailed Description
The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The embodiment describes a wheel-side driving device, as shown in fig. 1, comprising dual driving assemblies 1 oppositely arranged in an electric forklift, as shown in fig. 2, the driving assembly 1 comprises a wheel-side reducer 2, a flange 3 and a driving unit 4,
the hub reduction gear 2 and the driving unit 4 are respectively connected with a flange 3 and fixed in a frame 5 of the electric forklift through the flange 3;
a through hole is formed in the central axis of the flange plate 3, and the driving unit 4 penetrates through the through hole through a connecting shaft 6 to be connected with the hub reduction gear 2;
an L-shaped oil way is arranged inside the flange plate 3, an oil port at one end of the oil way is positioned on the side surface of the flange plate 3, and an oil port at the other end of the oil way is positioned on the end surface, close to the wheel-side speed reducer 2, of the flange plate 3 and is communicated with a corresponding oil way of the wheel-side speed reducer 2.
The technical idea of the utility model is that the oil port is arranged on the outer leakage surface of the flange plate in an oil way mode, and the maintenance work of the oil way can be realized without disassembling the driving assembly and passing through the oil port; the power transmission between the driving unit and the hub reduction gear is realized through the connecting shaft, so that later-stage disassembly and maintenance are facilitated, and meanwhile, the maintenance cost is reduced.
As shown in fig. 3 and 4, the number of the oil passages is five, and the oil passages are respectively a cooling oil inlet passage, a cooling oil return passage, a parking brake oil passage, a service brake oil passage and a cooling oil discharge passage.
A first cooling oil inlet 7 of a cooling oil inlet path is positioned on the side surface of the flange plate 3, and a second cooling oil inlet 12 is positioned on the end surface of the flange plate 3 close to the hub reduction gear 2;
a first cooling oil return port 8 of the cooling oil return path is positioned on the side surface of the flange plate 3, and a second cooling oil return port 13 is positioned on the end surface of the flange plate 3 close to the hub reduction gear 2;
a first parking brake oil port 9 of the parking brake oil way is positioned on the side surface of the flange plate 3, and a second parking brake oil port 14 is positioned on the end surface of the flange plate 3 close to the wheel hub reducer 2;
a first service braking oil port 10 of the service braking oil way is positioned on the side surface of the flange plate 3, and a second service braking oil port 15 is positioned on the end surface of the flange plate 3 close to the wheel hub reducer 2;
a first cooling oil discharge port 11 of the cooling oil discharge path is positioned on the side surface of the flange plate 3, and a second cooling oil discharge port 16 is positioned on the end surface of the flange plate 3 close to the wheel reduction gear 2.
Specifically, the first cooling oil inlet 7, the first cooling oil return opening 8, the first parking brake opening 9, the first traveling brake opening 10 and the first cooling oil discharge opening 11 can also be used as maintenance window holes, so that maintenance of an oil path is realized.
As shown in fig. 5, the oil path inside the flange is L-shaped, and an oil port at one end is located on the outer leakage surface of the flange, so that the maintenance of the oil path is facilitated. The oil port on the side face of the flange plate is connected to a hydraulic brake system of the whole vehicle through a hydraulic pipeline, and the oil port on the end face of the flange plate is communicated with the corresponding oil way of the wheel reduction gear 2, so that the braking and cooling effects are finally realized.
In a preferred embodiment of the present invention, the flange 3 is further provided with a vent plug opening 17, and the vent plug opening 17 is in the shape of an arc-shaped notch.
In a preferred embodiment of the present invention, a frame mounting hole 18 is formed on the annular boss of the flange 3 adjacent to the driving unit 4, and the flange 3 is fixedly connected to the frame 5 through a first connecting member 19 passing through the frame mounting hole 18.
The number of the frame mounting holes 18 is 10, and the frame mounting holes are uniformly distributed on the annular boss of the flange plate 3 close to the driving unit 4. The number of frame mounting holes 18 may be increased or decreased depending on the application.
Specifically, the frame mounting hole of the present embodiment can also be used as a lifting hole.
The flange 3 is provided with a hub reduction gear mounting hole 20 at the end part close to the hub reduction gear 2, and the flange 3 penetrates through the hub reduction gear mounting hole 20 through a second connecting piece 21 to be fixedly connected with the hub reduction gear 2.
In the present embodiment, the number of the hub reduction gear mounting holes is 10, and the mounting holes are uniformly distributed on the end portion of the flange 3 close to the hub reduction gear 2. The number of the wheel reduction gear mounting holes can be increased or decreased according to actual conditions.
The flange 3 is provided with a driving unit mounting hole 22 at an end portion close to the driving unit 4, and the flange 3 is fixedly connected with the driving unit 4 through a third connecting member 23 passing through the driving unit mounting hole 22.
In the present embodiment, the number of the driving unit mounting holes is 10, and the driving unit mounting holes are uniformly distributed on the end portion of the flange 3 near the driving unit 2. The number of the driving unit mounting holes may be increased or decreased according to actual circumstances.
Specifically, the position of the driving unit mounting hole 22 can be changed according to the volume of the driving unit, the limitation of the volume of the driving unit is broken, the mounting of a large-volume driving unit or a small-volume driving unit is realized, and the universal driving device has universality.
The first connecting piece, the second connecting piece and the third connecting piece can be connected by bolts.
In a preferred embodiment of the present invention, the hub reduction gear 2 and the driving unit 4 are provided with key grooves therein, and the connecting shaft 6 is provided at both ends thereof with key portions that fit the key grooves.
Specifically, the key portion may be a spline or a flat key, and power transmission between the drive unit and the hub reduction gear is realized by engagement of the spline or the flat key.
The flange plate is machined in a machining mode, the thickness of the flange plate can be flexibly designed, and the design requirements of different wheel tracks are met.
The drive unit may employ a drive motor or a hydraulic motor.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A wheel-side driving device comprises dual driving assemblies (1) which are oppositely arranged in an electric forklift, and is characterized in that the driving assemblies (1) comprise a wheel-side reducer (2), a flange plate (3) and a driving unit (4),
the hub reduction gear (2) and the driving unit (4) are respectively connected with a flange plate (3) and are fixed in a frame (5) of the electric forklift through the flange plate (3);
a through hole is formed in the central axis of the flange plate (3), and the driving unit (4) penetrates through the through hole through a connecting shaft (6) to be connected with the hub reduction gear (2);
an L-shaped oil way is arranged inside the flange plate (3), an oil port at one end of the oil way is positioned on the side face of the flange plate (3), and an oil port at the other end of the oil way is positioned on the end face, close to the wheel-side speed reducer (2), of the flange plate (3) and is communicated with a corresponding oil way of the wheel-side speed reducer (2).
2. The wheel-side driving device according to claim 1, wherein the number of the oil passages is five, and the oil passages are respectively a cooling oil inlet passage, a cooling oil return passage, a parking brake oil passage, a service brake oil passage and a cooling oil discharge passage;
a first cooling oil inlet (7) of the cooling oil inlet path is positioned on the side surface of the flange plate (3), and a second cooling oil inlet (12) is positioned on the end surface, close to the hub reduction gear (2), of the flange plate (3);
a first cooling oil return opening (8) of the cooling oil return path is positioned on the side surface of the flange plate (3), and a second cooling oil return opening (13) is positioned on the end surface of the flange plate (3) close to the hub reduction gear (2);
a first parking brake oil port (9) of the parking brake oil way is positioned on the side surface of the flange plate (3), and a second parking brake oil port (14) is positioned on the end surface, close to the wheel hub reducer (2), of the flange plate (3);
a first service braking oil port (10) of the service braking oil way is positioned on the side surface of the flange plate (3), and a second service braking oil port (15) is positioned on the end surface, close to the wheel reduction gear (2), of the flange plate (3);
a first cooling oil discharging opening (11) of the cooling oil discharging way is located on the side face of the flange plate (3), and a second cooling oil discharging opening (16) is located on the end face, close to the hub reduction gear (2), of the flange plate (3).
3. A wheel-rim driving device according to claim 1, characterized in that the flange plate (3) is further provided with a vent plug opening (17), and the vent plug opening (17) is in the shape of an arc-shaped notch.
4. A wheel-rim drive unit according to claim 1, characterized in that the ring-shaped projection of the flange (3) adjacent to the drive unit (4) is provided with a frame mounting hole (18), and the flange (3) is fixedly connected to the frame (5) by means of a first connecting piece (19) passing through the frame mounting hole (18).
5. A wheel-rim drive according to claim 4, characterized in that the number of frame mounting holes (18) is 10, evenly distributed over the annular projection of the flange (3) adjacent to the drive unit (4).
6. The hub driving device according to claim 1, wherein the flange plate (3) is provided with a hub reduction gear mounting hole (20) at an end portion close to the hub reduction gear (2), and the flange plate (3) is fixedly connected with the hub reduction gear (2) through the hub reduction gear mounting hole (20) by a second connecting member (21).
7. A wheel-rim drive unit according to claim 1, characterized in that the flange (3) is provided with drive unit mounting holes (22) at the end adjacent to the drive unit (4), the flange (3) being fixedly connected to the drive unit (4) by means of third connecting members (23) extending through the drive unit mounting holes (22).
8. The wheel-side driving device as claimed in claim 1, wherein key grooves are formed in the wheel-side speed reducer (2) and the driving unit (4), and key portions matched with the key grooves are formed at two ends of the connecting shaft (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122624728.XU CN215944292U (en) | 2021-10-29 | 2021-10-29 | Wheel rim driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122624728.XU CN215944292U (en) | 2021-10-29 | 2021-10-29 | Wheel rim driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215944292U true CN215944292U (en) | 2022-03-04 |
Family
ID=80411264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122624728.XU Active CN215944292U (en) | 2021-10-29 | 2021-10-29 | Wheel rim driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215944292U (en) |
-
2021
- 2021-10-29 CN CN202122624728.XU patent/CN215944292U/en active Active
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