CN209948871U - Permanent magnet direct current motor single-wheel driving device and electric forklift thereof - Google Patents
Permanent magnet direct current motor single-wheel driving device and electric forklift thereof Download PDFInfo
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- CN209948871U CN209948871U CN201920991265.0U CN201920991265U CN209948871U CN 209948871 U CN209948871 U CN 209948871U CN 201920991265 U CN201920991265 U CN 201920991265U CN 209948871 U CN209948871 U CN 209948871U
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Abstract
The utility model discloses a permanent magnet direct current motor single-wheel driving device and an electric forklift thereof, which comprises a permanent magnet direct current motor, a brake, a reduction gearbox, a solid tire, a tire bearing and an inverted L-shaped mounting piece, wherein the reduction gearbox is arranged at one end of a motor shaft of the permanent magnet direct current motor, the tire bearing is sleeved outside a casing of the permanent magnet direct current motor, the solid tire is sleeved outside the tire bearing, the brake is arranged on the reduction gearbox, one end of the mounting piece is fixed on the reduction gearbox, and the other end extends to the upper part of the solid tire and forms a mounting plane; adopt permanent magnet direct current motor and reducing gear box composite assembly to become a power drive unit, the solid tyre suit is in the permanent magnet direct current motor outside, and structural design is reasonable, makes whole permanent magnet direct current motor single wheel drive device's structure compacter, and the cooperation precision is higher, still forms the mounting plane above the solid tyre, is convenient for assemble together with other parts of electric fork truck, and the running noise is little, and is small, and is not fragile, long service life.
Description
Technical Field
The utility model relates to a drive arrangement field, in particular to permanent magnet direct current motor single wheel drive and electric fork truck thereof.
Background
In the traditional cleaning industry, the logistics industry and the warehousing industry, a large amount of manpower is used for mechanical manual labor, and the labor is consumed, and the working efficiency is low. The cleaning industry, logistics industry and warehousing industry all begin to adopt electric cleaning vehicles or electric forklifts nowadays, and its characteristics are light, nimble in operation, can realize 90 turns in slowly going, and zero release is favorable to narrow and small space's such as market, supermarket cleaning operation, is favorable to the light transportation of logistics, complicated topography of storage, reduces intensity of labour, saves time, laborsaving, improves work efficiency, practices thrift the labour cost, creates the profit for the enterprise. Most of driving devices of the electric cleaning vehicles or the electric forklifts have the problems that the structural design is not reasonable enough, the service life is short, the operation noise is large, the assembly is difficult, the driving devices are easy to damage, and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve one of the technical problem that exists among the prior art at least, provide a permanent magnet direct current motor single wheel drive and electric fork truck thereof, structural design is reasonable, and the part assembly is compact, and the running noise is little, and is small, and is not fragile, long service life.
The utility model discloses a first aspect provides a permanent magnet direct current motor single wheel drive arrangement, including permanent magnet direct current motor, brake, reducing gear box, solid tyre, tire bearing and the installed part of falling the L type, the reducing gear box is installed in permanent magnet direct current motor's motor shaft one end, and the tire bearing housing is in permanent magnet direct current motor's the casing outside, and the solid tyre cover is in the tire bearing outside, and the brake is installed on the reducing gear box, and the one end of installed part is fixed on the reducing gear box, and the other end extends to the solid tyre top and forms mounting plane.
The permanent magnet direct current motor single-wheel driving device at least has the following beneficial effects: adopt permanent magnet direct current motor and reducing gear box composite assembly to become a power drive unit, the solid tyre suit is in the permanent magnet direct current motor outside, and structural design is reasonable, makes whole permanent magnet direct current motor single wheel drive device's structure compacter, and the cooperation precision is higher, still forms the mounting plane above the solid tyre, is convenient for assemble together with other parts of electric fork truck, and the running noise is little, and is small, and is not fragile, long service life.
According to the utility model discloses a permanent magnet direct current motor single wheel drive device of first aspect, permanent magnet direct current motor includes rotor subassembly and the stator module of cover in the rotor subassembly outside, the rotor subassembly includes the motor shaft, fix the rotor core on the motor shaft, around rotor winding and the commutator on the rotor core, stator module includes the casing of one end opening one end closure and installs the rear end cap in casing closure one end, the casing inner wall is provided with the magnet steel, the opening one end of casing is provided with the bearing frame, be provided with rotor bearing on the bearing frame, the motor shaft passes rotor bearing, still be provided with the skeleton oil blanket on the bearing frame.
According to the utility model discloses a permanent magnet direct current motor single wheel drive arrangement of first aspect, the casing use cast steel to make and form, the wall thickness of casing is greater than 10 mm. The whole product has very good structural strength, and the magnetic conduction machine shell which is thick enough can ensure that the magnetic steel does not leak magnetic flux to the outside, ensure that all effective magnetic fields are used on the working of the motor, and realize the maximization of the motor efficiency.
According to the utility model discloses a permanent magnet direct current motor single wheel drive arrangement of first aspect, the gear of reducing gear box adopts the skewed tooth structure. To increase the meshing area and reduce gear noise.
According to the utility model discloses a permanent magnet direct current motor single wheel drive arrangement of first aspect still includes drive control module, and drive control module includes direct current drive module and the battery module, speed governing control module and the positive reverse control button of being connected with direct current drive module respectively, and permanent magnet direct current motor is connected to direct current drive module. The forward rotation, reverse rotation and acceleration and deceleration control of the permanent magnet direct current motor can be easily realized.
The second aspect of the utility model provides an electric fork-lift truck, including the above-mentioned arbitrary permanent magnet direct current motor single wheel drive.
The electric forklift at least has the following beneficial effects: adopt permanent magnet direct current motor and reducing gear box composite assembly to become a power drive unit, the solid tyre suit is in the permanent magnet direct current motor outside, and structural design is reasonable, makes whole permanent magnet direct current motor single wheel drive device's structure compacter, and the cooperation precision is higher, still forms the mounting plane above the solid tyre, is convenient for assemble together with other parts of electric fork truck, and the running noise is little, and is small, and is not fragile, long service life.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples;
fig. 1 is an overall schematic view of a single-wheel driving device of a permanent-magnet dc motor according to an embodiment of the present invention;
fig. 2 is a structural diagram of a permanent magnet direct current motor of a single-wheel driving device of a permanent magnet direct current motor according to an embodiment of the present invention;
fig. 3 is a sectional view of a stator assembly of a single-wheel driving device of a permanent magnet direct current motor according to an embodiment of the present invention;
fig. 4 is a side view of a stator assembly of a single-wheel driving device of a permanent magnet dc motor according to an embodiment of the present invention;
fig. 5 is a structural diagram of a rotor assembly of a single-wheel driving device of a permanent magnet direct current motor according to an embodiment of the present invention;
fig. 6 is a drive control module structure diagram of a single-wheel driving device of a permanent magnet dc motor according to an embodiment of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1-2, an embodiment of the present invention provides a single wheel driving device of a permanent magnet dc motor, including a permanent magnet dc motor 10, a brake 20, a reduction gearbox 30, a solid tire 40, a tire bearing 50 and an inverted L-shaped mounting member 60, the reduction gearbox 30 is installed at one end of a motor shaft 111 of the permanent magnet dc motor 10, the tire bearing 50 is sleeved outside a casing 121 of the permanent magnet dc motor 10, the solid tire 40 is sleeved outside the tire bearing 50, the brake 20 is installed on the reduction gearbox 30, one end of the mounting member 60 is fixed on the reduction gearbox 30, and the other end extends to above the solid tire 40 and forms a mounting plane 61.
In this embodiment, adopt permanent magnet direct current motor 10 and reducing gear box 30 composite assembly to assemble a power drive unit, solid tyre 40 suit is in the permanent magnet direct current motor 10 outside, the front end excircle of permanent magnet direct current motor 10's casing 121 passes through precision finishing and the built-in bearing inner race precision assembly of reducing gear box 30 drive wheel in order to reach best assembly precision effect and make reducing gear box 30 and permanent magnet direct current motor 10 cooperation part realize the effect of low noise and longest life, structural design is reasonable, make whole permanent magnet direct current motor single wheel drive unit's structure compacter, cooperation precision is higher, still form mounting plane 61 above solid tyre 40, be convenient for assemble together with other parts of electric fork truck, the running noise is little, small, not fragile, long service life.
Referring to fig. 2-5, another embodiment of the present invention further provides a single wheel driving device for a permanent magnet dc motor, wherein, the permanent magnet dc motor 10 includes a rotor assembly 11 and a stator assembly 12 sleeved outside the rotor assembly 11, the rotor assembly 11 includes a motor shaft 111, a rotor core 112 fixed on the motor shaft 111, a rotor winding 113 wound on the rotor core 112 and a commutator 114, the stator assembly 12 includes a casing 121 with an open end and a closed end and a rear end cover 122 installed on the closed end of the casing 121, an inner wall of the casing 121 is provided with a magnetic steel 123, the open end of the casing 121 is provided with a bearing seat 124, the bearing seat 124 is provided with a rotor bearing 115, the motor shaft 111 passes through the rotor bearing 115, and the bearing seat 124 is further provided with a frame.
In this embodiment, the permanent magnet dc motor 10 adopts the uniformly distributed four poles of permanent magnets and the uniformly distributed four carbon brushes to supply power, so that the current branch is increased compared with the conventional two-pole motor, the working current of the carbon brushes and the winding is reduced, the service life of the carbon brushes is effectively prolonged, the service life of the motor is longer than 3500 hours through a life test, and the service life of the motor is longer than 1500 hours compared with the conventional motor. The designed output power of the motor is more than 1 horsepower, so that the motor can meet the load use requirements of most electric cleaning vehicles or electric forklifts; the magnetic steel 123 adopts a high-magnetic performance ferrite permanent magnet with the remanence Br larger than 420mT, and a motor with higher torque, higher efficiency and higher output power can be manufactured by selecting the high-performance ferrite; the commutator 114 is processed and executed with a strict and scientific process, the assembled bearing is used as the standard for turning the commutator, the roughness of the commutator after turning is ensured to be controlled to be Ra of 0.8-1.2 μm, the concentricity is controlled to be 5 μm, the running noise of the motor brush can be effectively reduced through the control, and the low noise effect of the whole product is realized.
Referring to fig. 3 and 4, another embodiment of the present invention further provides a single wheel driving apparatus with a permanent magnet dc motor, wherein the casing 121 is made of cast steel, and the wall thickness of the casing 121 is greater than 10 mm.
In this embodiment, the whole product has very good structural strength, and the sufficiently thick magnetic conduction casing 121 can ensure that the magnetic steel 123 does not leak magnetic flux to the outside, ensures that all effective magnetic fields are used on the motor work, and realizes the maximization of the motor efficiency.
Another embodiment of the utility model provides a permanent magnet direct current motor single wheel drive arrangement still, wherein, the gear of reducing gear box 30 adopts the skewed tooth structure to increase mesh area and reduce the gear noise.
Referring to fig. 6, another embodiment of the present invention further provides a permanent magnet direct current motor single-wheel driving device, wherein, the device further includes a driving control module, the driving control module includes a direct current driving module 71 and a storage battery module 72, a speed regulation control module 73 and a forward and reverse rotation control button 74 respectively connected with the direct current driving module 71, and the direct current driving module 71 is connected with the permanent magnet direct current motor 10. The forward rotation, reverse rotation, acceleration and deceleration control of the permanent magnet direct current motor 10 can be easily realized.
The second aspect of the utility model provides an electric fork-lift truck, including the above-mentioned arbitrary permanent magnet direct current motor single wheel drive.
In this embodiment, adopt permanent magnet direct current motor 10 and reducing gear box 30 composite set to assemble into a power drive unit, solid tyre 40 suit is in the permanent magnet direct current motor 10 outside, structural design is reasonable, make whole permanent magnet direct current motor single wheel drive unit's structure compacter, the cooperation precision is higher, still form mounting plane 61 above solid tyre 40, be convenient for with electric fork truck's other parts assembly together, the running noise is little, and is small, and is not fragile, long service life, this electric fork truck can effectively save the labour, reduce intensity of labour, to the environment zero release, practice thrift the cost of labor, and can improve goods transport treatment efficiency, well reduced intensity of labour, time saving, laborsaving, work efficiency is high.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art.
Claims (6)
1. The utility model provides a permanent magnet direct current motor single wheel drive arrangement which characterized in that, includes permanent magnet direct current motor, brake, reducing gear box, solid tyre, tire bearing and the installed part of falling L type, and the reducing gear box is installed in permanent magnet direct current motor's motor shaft one end, and the tire bearing cover is in permanent magnet direct current motor's casing outside, and solid tyre covers in the tire bearing outside, and the brake is installed on the reducing gear box, and the one end of installed part is fixed on the reducing gear box, and the other end extends to solid tyre top and forms the mounting plane.
2. The single-wheel driving device of the permanent-magnet direct-current motor according to claim 1, wherein the permanent-magnet direct-current motor comprises a rotor assembly and a stator assembly sleeved outside the rotor assembly, the rotor assembly comprises a motor shaft, a rotor core fixed on the motor shaft, a rotor winding wound on the rotor core, and a commutator, the stator assembly comprises a casing with an open end and a closed end, and a rear end cover installed at the closed end of the casing, the inner wall of the casing is provided with magnetic steel, the open end of the casing is provided with a bearing seat, the bearing seat is provided with a rotor bearing, the motor shaft passes through the rotor bearing, and the bearing seat is further provided.
3. The single-wheel drive device with the permanent-magnet direct-current motor as claimed in claim 2, wherein the casing is made of cast steel, and the wall thickness of the casing is greater than 10 mm.
4. The single-wheel driving device with the permanent-magnet direct-current motor as claimed in claim 1, wherein the gear of the reduction box is in a helical tooth structure.
5. The single-wheel driving device of claim 1, further comprising a driving control module, wherein the driving control module comprises a dc driving module, and a battery module, a speed-adjusting control module and a forward/reverse control button respectively connected to the dc driving module, and the dc driving module is connected to the dc permanent magnet motor.
6. An electric forklift comprising a permanent magnet direct current motor single wheel drive according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920991265.0U CN209948871U (en) | 2019-06-27 | 2019-06-27 | Permanent magnet direct current motor single-wheel driving device and electric forklift thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920991265.0U CN209948871U (en) | 2019-06-27 | 2019-06-27 | Permanent magnet direct current motor single-wheel driving device and electric forklift thereof |
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| CN209948871U true CN209948871U (en) | 2020-01-14 |
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| CN201920991265.0U Active CN209948871U (en) | 2019-06-27 | 2019-06-27 | Permanent magnet direct current motor single-wheel driving device and electric forklift thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115664064A (en) * | 2022-12-26 | 2023-01-31 | 常州市凯迪电器股份有限公司 | Lifting upright post using permanent magnet direct current motor |
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2019
- 2019-06-27 CN CN201920991265.0U patent/CN209948871U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115664064A (en) * | 2022-12-26 | 2023-01-31 | 常州市凯迪电器股份有限公司 | Lifting upright post using permanent magnet direct current motor |
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