CN214534391U

CN214534391U - Electric steering driving wheel directly driven by direct current motor

Info

Publication number: CN214534391U
Application number: CN202120541932.2U
Authority: CN
Inventors: 叶海刚
Original assignee: Ningbo Tuoke Transmission Co ltd
Current assignee: Ningbo Tuoke Transmission Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-10-29
Anticipated expiration: 2031-03-16

Abstract

The utility model provides a direct current motor direct drive's electronic steering drive wheel, include: reduction gear casing, bearing, driving motor and reduction gear assembly are provided with the bearing subassembly between bearing and the reduction gear casing, and the bearing subassembly includes: the supporting seat is connected with an external frame through a second mounting flange and arranged in the reducer shell, and one end of the driving motor is mounted on the supporting seat and matched with the reducer assembly through the accommodating cavity; the speed reducer subassembly includes: duplicate gears and single gears. The utility model relates to a direct current motor direct drive's electronic steering drive wheel duplex bearing supports more stably, can effectively reduce the abnormal sound, and inside leakproofness is better, and overall structure is simple, effectively reduces the processing degree of difficulty and cost.

Description

Electric steering driving wheel directly driven by direct current motor

Technical Field

The utility model relates to a direct current motor reduction gear technical field, in particular to direct current motor direct drive's electronic steering drive wheel.

Background

At present, an electric driving wheel for self-walking of a scissor-fork type aerial work vehicle is mostly connected with a frame of the scissor-fork type aerial work vehicle through an L-shaped fixed support, a shell of a speed reducer is only supported by one bearing, the structural stability is poor, and the bearing is easy to generate abnormal sound when the electric driving wheel is used as a steering driving wheel, so that the driving wheel with the existing structure can only be used as a fixed driving wheel and cannot be used as the steering driving wheel. And the rubber tire of current electric drive wheel adopts interference's press-fit mode fixed between the reduction gear casing, and this mode is high to the requirement of machining, in case the rubber wheel appears wearing and tearing and need change then must be changed together with the reduction gear casing, and the replacement cost is higher.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The to-be-solved technical problem of the utility model is to provide a direct current motor direct drive's that easy to assemble, duplex bearing support more stable, effectively reduce abnormal sound, reduce the processing degree of difficulty and cost electronic steering drive wheel.

(II) technical scheme

In order to solve the technical problem, the utility model discloses a direct current motor direct drive's electronic drive wheel that turns to, include: the speed reducer comprises a speed reducer shell, a supporting seat, a driving motor and a speed reducer assembly, wherein a bearing assembly is arranged between the supporting seat and the speed reducer shell, an accommodating cavity is formed in the middle of the supporting seat, the speed reducer assembly is arranged in the accommodating cavity and connected with the driving motor, the outer side of the speed reducer shell is connected with a driving wheel through a first mounting flange, the supporting seat is connected with an external frame through a second mounting flange, the supporting seat is arranged in the speed reducer shell, and one end of the driving motor is arranged on the supporting seat and penetrates through the accommodating cavity to be matched with the speed reducer assembly; the speed reducer assembly includes: duplicate gear and single gear, duplicate gear with driving motor's output wheel meshing, single gear respectively with duplicate gear with the internal tooth meshing of reduction gear casing, be provided with self-sealing bearing on the footpath of output wheel, self-sealing bearing installs in the bearing hole of bearing, the bearing is whole casting formula technology and casts integrative structure, and the setting of this structure is through with reduction gear casing with the drive wheel adopts flange joint to carry out the output, can reduce the wearing and tearing to outside tire, need not to change reduction gear casing, and it is more swift to change the maintenance, has reduced cost of maintenance and has shortened maintenance cycle, utilizes in addition the setting of bearing assembly can make inside structure more stable at the during operation, solves the abnormal sound problem of single bearing supporting when as turning to the drive wheel.

Further, the accommodating cavity comprises: the output wheel is arranged in the second cavity, the duplicate gear is arranged in the first cavity, the simplex gear is arranged in the third cavity, the internal space occupation can be reduced by the arrangement of the structure, the installation arrangement of the speed reducer assembly can be effectively guaranteed, meanwhile, the speed reducer assembly can be more stable in working, and the speed reduction effect is guaranteed.

Further, the bearing assembly includes: the structure of the bearing device is characterized in that an inner ring of the bearing assembly is arranged on the bearing seat, an outer ring of the bearing assembly is matched with the reducer shell, the first deep groove ball bearing and the second deep groove ball bearing are respectively arranged at two ends of the bearing seat, the first deep groove ball bearing is arranged on the left side of the bearing seat, the first deep groove ball bearing is arranged on the right side of the bearing seat, the structure is arranged by utilizing the first deep groove ball bearing and the second deep groove ball bearing which are arranged on two sides, the structure between the bearing seat and the reducer shell can be guaranteed to be more stable, the problem of abnormal sound of single bearing support when the bearing device is used as a steering driving wheel can be solved to a certain extent, the using effect is effectively improved, and the internal structure is more reasonable.

Further, the outside of reduction gear housing is outwards formed with the installation department, be formed with cooperation portion on the drive wheel, first mounting flange arranges in the installation department with between the cooperation portion and will reduction gear housing with the drive wheel carries out fixed connection, and the setting up of this structure has adopted flange formula hookup mode, has reduced the processing degree of difficulty and cost, outside tire wear only need when changing can, and do not change reduction gear housing, and need not decompose the complete machine, has reduced cost of maintenance and has shortened maintenance cycle.

Furthermore, an electromagnetic brake is arranged at one end, far away from the speed reducer assembly, of the driving motor, the output wheel is meshed with the large gear of the duplicate gear, the small gear of the duplicate gear is meshed with the single gear, and the electromagnetic brake can be used for guaranteeing the reliable parking brake and the slope parking safety of the whole machine.

Further, the reduction gear assembly sets up in the bearing, the duplicate gear with the simple gang gear passes through bearing and rotates the setting and be in on the bearing, bearing installs through the round pin axle on the bearing, through bearing's setting can guarantee the rationality that inner structure set up, right duplicate gear with simple gang gear plays spacing pivoted effect, and inner structure occupation space still less, and overall structure is simpler.

Furthermore, be provided with the skeleton oil blanket on the bearing, install in the outside of skeleton oil blanket on retarder casing's hole, one side of retarder casing is provided with the reduction gear end cover, the reduction gear end cover with be provided with the packing ring between the retarder casing, the setting of packing ring and inside debris such as outside water and silt have been prevented effectively to set up of skeleton oil blanket gets into the speed reducer, guarantees that inside parts can normally work.

(III) advantageous effects

The utility model relates to a direct current motor direct drive's electronic drive wheel that turns to lies in for prior art's advantage: the bearing adopts the whole casting formula structure, make holistic simple structure, the inner structure is more stable, it is more convenient to produce and manufacture, and holistic leakproofness and bearing nature are better, carry out the mode of supporting through setting up the bearing assembly between reduction gear casing and bearing, the abnormal sound problem of single bearing supporting when as turning to the drive wheel can effectively be solved, in addition through the mode that adopts mounting flange, can conveniently install on the steering axle, the processing degree of difficulty and cost have been reduced, only need when the tire wearing and tearing are changed in addition can, and do not need to change reduction gear casing, and need not decompose the complete machine, maintenance cost has been reduced and maintenance cycle has been shortened, it is better to utilize simultaneously to set up packing ring and reduction gear end cover and can guarantee holistic leakproofness.

Drawings

Fig. 1 is a schematic structural view of an electric steering driving wheel directly driven by a dc motor according to the present invention;

FIG. 2 is a schematic structural view of the electric steering driving wheel without the reducer casing directly driven by the DC motor according to the present invention;

fig. 3 is an enlarged view of a dc motor directly driven electric steering driving wheel a of the present invention;

fig. 4 is an enlarged view of a dc motor directly driven electric steering driving wheel B of the present invention;

fig. 5 is a schematic structural view of a direct current motor direct drive support base of the present invention;

wherein: the structure comprises a speed reducer shell 1, a supporting seat 2, a driving motor 3, a driving wheel 4, a duplicate gear 5, a single-link gear 6, an output wheel 7, a first cavity 801, a second cavity 802, a third cavity 803, a first deep groove ball bearing 9, a second deep groove ball bearing 10, an installation part 11, a first installation flange 1201, a second installation flange 1202, a matching part 13, an electromagnetic brake 14, a needle bearing 15, a pin shaft 16, a framework oil seal 17, an inner hole 18, a speed reducer end cover 19, a gasket 20 and a self-sealing bearing 21.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 5, an electric steering driving wheel directly driven by a dc motor includes: the method comprises the following steps: the reducer comprises a reducer shell 1, a supporting seat 2, a driving motor 3 and a reducer assembly, wherein a bearing assembly is arranged between the supporting seat 2 and the reducer shell 1, an accommodating cavity is formed in the middle of the supporting seat 2, the reducer assembly is arranged in the accommodating cavity and connected with the driving motor 3, the outer side of the reducer shell 1 is connected with a driving wheel 4 through a first mounting flange 1201, the supporting seat 2 is connected with an external frame through a second mounting flange 1202, the supporting seat 2 is arranged in the reducer shell 1, and one end of the driving motor 3 is arranged on the supporting seat 2 and is matched with the reducer assembly through the accommodating cavity; the speed reducer subassembly includes: duplicate gear 5 and single-link gear 6, duplicate gear 5 meshes with driving motor 3's output wheel 7, single-link gear 6 respectively with duplicate gear 5 and reducer case 1's internal tooth engagement, in this embodiment, bearing 2 adopts whole cast formula structure, utilize whole cast formula technology and cast into an organic whole structure, guarantee inside leakproofness and support stability, be provided with self-sealing bearing 21 on output wheel 7's the shaft diameter, self-sealing bearing 21 installs in bearing 2's the dead eye, and is concrete: when the mounting flange is used, the reducer casing 1 is installed and connected with an external tire through the first mounting flange 1201, the external frame is connected through the second mounting flange 1202, the driving motor 3 drives the duplicate gear 5 to rotate, the single-duplicate gear 6 is driven to rotate, the speed reduction effect is achieved for the reducer casing 1 and the driving wheel 4, the bearing assemblies are arranged on two sides of the supporting seat 2, the stabilizing effect of two sides is achieved for the supporting seat 2, the reducer casing 1 and the driving wheel 4 are connected through flanges to be output, abrasion to the external tire can be reduced, the reducer casing does not need to be replaced, replacement and maintenance are faster, maintenance cost is reduced, maintenance period is shortened, in addition, the arrangement of the bearing assemblies can enable the internal structure to be more stable during working, and the problem of abnormal sound of single-bearing support when the reducer casing and the driving wheel are used is solved.

Referring to fig. 1 and 2, the accommodating chamber includes: first cavity 801, second cavity 802 and third cavity 803, output wheel 7 arranges in second cavity 802, duplicate gear 5 arranges in first cavity 801, singly join gear 6 arranges in third cavity 803, singly join gear 6 and duplicate gear 5 form the driving chain of external gearing-internal gearing with output wheel 7 in the holding intracavity, and symmetrical arrangement has two sets ofly in the whole circumference within range of reduction gear housing 1, guarantee the job stabilization nature of reduction gear effectively, can reduce the inner space and occupy, can effectively guarantee the installation setting of reduction gear subassembly, simultaneously can make the reduction gear subassembly during operation more stable, guarantee the effect of slowing down.

Referring to fig. 2 and 4, the bearing assembly includes: first deep groove ball bearing 9 and second deep groove ball bearing 10, the inner circle of bearing assembly is installed on bearing 2, and the outer lane of bearing assembly and the cooperation of reduction gear casing 1, first deep groove ball bearing 9 and second deep groove ball bearing 10 set up respectively at the both ends of bearing 2, and first deep groove ball bearing 9 sets up the left side of bearing 2, and first deep groove ball bearing 9 sets up the right side of bearing 2, specific: in this embodiment, the supporting seat 2 is of an integrally cast structure, the first deep groove ball bearing 9 and the second deep groove ball bearing 10 arranged on the two sides can ensure that the structure between the supporting seat 2 and the reducer housing 1 is more stable, the abnormal sound problem of the single bearing support when the single bearing support is used as a steering driving wheel can be solved to a certain extent, the use effect is effectively improved, and the internal structure is more reasonable.

Referring to fig. 1 and 2, an installation part 11 is formed outwards on the outer side of a reducer casing 1, a matching part 13 is formed on a driving wheel 4, a first installation flange 1201 is arranged between the installation part 11 and the matching part 13 and fixedly connects the reducer casing 1 and the driving wheel 4, a flange type connection mode is adopted, the processing difficulty and cost are reduced, when an external tire is worn and replaced, only a rubber tire needs to be replaced, the reducer casing does not need to be replaced, the whole machine does not need to be disassembled, the maintenance cost is reduced, and the maintenance period is shortened.

Referring to fig. 1 and 2, an electromagnetic brake 14 is arranged at one end of the driving motor 3, which is far away from the reducer assembly, the output wheel 7 is meshed with a large gear of the duplicate gear 5, a small gear of the duplicate gear 5 is meshed with the single gear 6, the reducer assembly is arranged in the supporting seat 2, the duplicate gear 5 and the single gear 6 are rotatably arranged on the supporting seat 2 through a needle bearing 15, the needle bearing 15 is arranged on the supporting seat 2 through a pin shaft 16, the needle bearing 15 is arranged on the supporting seat 2 through two ends of the pin shaft 16, the reasonability of the internal structure arrangement can be ensured through the arrangement of the needle bearing 15, the double gear 5 and the single gear 6 are limited to rotate, the internal structure occupies less space, and the overall structure is simpler.

Referring to fig. 1, a framework oil seal 17 is arranged on a supporting seat 2, the outer side of the framework oil seal 17 is installed on an inner hole 18 of a reducer casing 1, a reducer end cover 19 is arranged on one side of the reducer casing 1, a gasket 20 is arranged between the reducer end cover 19 and the reducer casing 1, and the arrangement of the gasket 20 and the framework oil seal 17 can effectively prevent foreign matters such as external water and silt from entering the interior of the reducer and ensure that internal components can normally work.

The electric steering driving wheel directly driven by the direct current motor is supported by arranging the bearing assembly between the reducer casing and the supporting seat, the abnormal sound problem of single bearing support when the electric steering driving wheel is used as the steering driving wheel can be effectively solved, in addition, the electric steering driving wheel can be conveniently installed on a steering axle by adopting a mounting flange mode, the processing difficulty and the cost are reduced, only rubber tires need to be replaced when tires are worn and replaced, the reducer casing is not required to be replaced, the whole machine is not required to be decomposed, the maintenance cost is reduced, the maintenance period is shortened, meanwhile, the whole sealing performance can be better ensured by arranging the gasket and the reducer end cover, the whole structure is simple, and the internal structure is more stable.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An electric steering drive wheel directly driven by a direct current motor, comprising: reduction gear casing (1), bearing (2), driving motor (3) and reduction gear assembly, bearing (2) with be provided with the bearing assembly between reduction gear casing (1), the bearing assembly includes: the device comprises a first deep groove ball bearing (9) and a second deep groove ball bearing (10), wherein an accommodating cavity is formed in the middle of a supporting seat (2), a speed reducer assembly is arranged in the accommodating cavity and connected with a driving motor (3), the outer side of a speed reducer shell (1) is connected with a driving wheel (4) through a first mounting flange (1201), the supporting seat (2) is connected with an external frame through a second mounting flange (1202), the supporting seat (2) is arranged in the speed reducer shell (1), and one end of the driving motor (3) is installed on the supporting seat (2) and penetrates through the accommodating cavity to be matched with the speed reducer assembly; the speed reducer assembly includes: the dual-gear type speed reducer is characterized by comprising a dual gear (5) and a single gear (6), wherein the dual gear (5) is meshed with an output wheel (7) of the driving motor (3), and the single gear (6) is respectively meshed with the dual gear (5) and the inner teeth of the speed reducer shell (1).

2. An electric power steering drive wheel directly driven by a direct current motor as claimed in claim 1, wherein said housing chamber comprises: a first chamber (801), a second chamber (802), and a third chamber (803), the output wheel (7) being disposed within the second chamber (802), the dual gear (5) being disposed within the first chamber (801), and the single gear (6) being disposed within the third chamber (803).

3. An electric power steering drive wheel directly driven by a direct current motor according to claim 1, characterized in that the inner ring of the bearing assembly is mounted on the support block (2) and the outer ring of the bearing assembly is fitted with the reducer case (1).

4. A direct drive electric steering drive wheel according to claim 1, characterised in that said support block (2) is of one-piece casting technology and is cast as one piece.

5. An electric steering driving wheel directly driven by a direct current motor according to claim 1, characterized in that the output wheel (7) is provided with a self-sealing bearing (21) on the shaft diameter, and the self-sealing bearing (21) is installed in the bearing hole of the supporting seat (2).

6. The direct-current motor directly driven electric steering drive wheel according to claim 3, characterized in that the first deep groove ball bearing (9) and the second deep groove ball bearing (10) are respectively arranged at both ends of the bearing block (2), the first deep groove ball bearing (9) is arranged at the left side of the bearing block (2), and the first deep groove ball bearing (9) is arranged at the right side of the bearing block (2).

7. The direct-current motor directly driven electric steering driving wheel according to claim 1, wherein the reducer case (1) is formed with a mounting portion (11) outwardly at an outer side thereof, and the driving wheel (4) is formed with an engaging portion (13), and the first mounting flange (1201) is interposed between the mounting portion (11) and the engaging portion (13) and fixedly connects the reducer case (1) and the driving wheel (4).

8. An electric steering driving wheel directly driven by a direct current motor as claimed in claim 1, characterized in that the end of the driving motor (3) remote from the retarder unit is provided with an electromagnetic brake (14), the output wheel (7) is engaged with a large gear of the double gear (5), and a small gear of the double gear (5) is engaged with the single gear (6).

9. The direct-current motor directly driven electric steering drive wheel according to claim 1, wherein the reducer assembly is disposed in the support base (2), the dual gear (5) and the single gear (6) are rotatably disposed on the support base (2) through needle bearings (15), and the needle bearings (15) are mounted on the support base (2) through pin shafts (16).

10. A direct current motor driven electric steering drive wheel according to claim 1, wherein a skeleton oil seal (17) is provided on the support base (2), the outer side of the skeleton oil seal (17) is mounted on the inner hole (18) of the reducer casing (1), a reducer end cover (19) is provided on one side of the reducer casing (1), and a gasket (20) is provided between the reducer end cover (19) and the reducer casing (1).