CN115676713A

CN115676713A - Drive assembly

Info

Publication number: CN115676713A
Application number: CN202211480962.2A
Authority: CN
Inventors: 陈学富
Original assignee: Zhejiang Boqian Technology Co ltd
Current assignee: Zhejiang Boqian Technology Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-02-03

Abstract

The invention belongs to the technical field of forklift drive, and particularly relates to a drive assembly which comprises a gear box, a drive motor and a drive wheel. The driving motor is transversely arranged, a motor connecting piece is arranged in the middle of the right side wall of the gear box, the driving motor is fixed outside the gear box through the motor connecting piece, an output shaft of the driving motor penetrates through the gear box and is fixed with a brake device, and the brake device is positioned on the other side of the gear box; the output shaft of the driving motor in the gear box is provided with a circle of output tooth grooves, a transmission gear in transmission connection with the output tooth grooves is rotationally arranged in the gear box on one side of the output tooth grooves, a transmission shaft is fixed on the transmission gear, one end of the transmission shaft is fixedly connected with the transmission gear, the other end of the transmission shaft penetrates through the side wall of the gear box and is provided with a circle of transmission tooth grooves, the driving wheel is rotationally arranged on the right side of the gear box and is sleeved outside the driving motor, and a gear ring meshed with the transmission tooth grooves is fixed on one side of the driving wheel facing the gear box. The invention has compact structure and large torque.

Description

Drive assembly

Technical Field

The invention belongs to the technical field of forklift drive, and particularly relates to a drive assembly.

Background

The forklift is one of the commonly used transport vehicles at present, and is a general name of various wheeled transport vehicles for loading, unloading, stacking, short-distance transportation and heavy object transport operations of finished pallet goods. The pallet loading and unloading device is widely applied to ports, stations, airports, goods yards, factory workshops, warehouses, circulation centers, distribution centers and the like, can enter cabins, carriages and containers to load, unload and carry pallet goods, and is necessary equipment in pallet transportation and container transportation.

The forklift generally has a large load during working, the forklift has a low requirement on speed and a high requirement on power, and at present, the existing forklift is complex in driving structure, a transmission gear from a motor output shaft to a driving wheel is more, the transmission times are more, most of the motors are 5 antipodal motors, the transmission torque is small, and the power is insufficient.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provides the driving assembly with small volume and large torque.

The invention aims to solve the problems by the following technical scheme:

the utility model provides a drive assembly, includes gear box, driving motor, drive wheel, its characterized in that: the driving motor is transversely arranged, a motor connecting piece is arranged in the middle of the right side wall of the gear box, the driving motor is fixed outside the gear box through the motor connecting piece, an output shaft of the driving motor penetrates through the gear box and is fixed with a brake device, and the brake device is positioned on the other side of the gear box; the driving motor is characterized in that a circle of output tooth grooves are formed in an output shaft of a driving motor in the gear box, a transmission gear in transmission connection with the output tooth grooves is arranged in the gear box on one side of the output tooth grooves in a rotating mode, a transmission shaft is fixed on the transmission gear, the central axis of the transmission shaft coincides with the central axis of the transmission gear, one end of the transmission shaft is fixedly connected with the transmission gear, the other end of the transmission shaft penetrates through the side wall of the gear box and is provided with a circle of transmission tooth grooves, the driving wheel is rotatably arranged on the right side of the gear box and is sleeved outside the driving motor, and a gear ring meshed with the transmission tooth grooves is fixed on one side, facing the gear box, of the driving wheel.

Based on above-mentioned structure, the drive wheel cover is established outside the drive motor, has reduced the volume of whole drive assembly greatly, and meanwhile the distance of drive wheel and drive motor output shaft is also nearer, the output tooth's socket that sets up on the motor output shaft drives drive gear and rotates, drive gear drives the transmission shaft and rotates, the transmission tooth's socket that sets up on the transmission shaft drives the ring gear and rotates, the ring gear that sets up on the drive wheel drives the drive wheel and rotates, whole transmission process only has the secondary drive, only set up a drive gear, compact structure, greater moment of torsion is provided for the drive wheel.

Preferably, the driving motor is a seven-pair-pole motor or an eight-pair-pole motor.

Furthermore, the gear box is a box body with an opening at the left side, a cover body matched with the gear box is arranged on the opening, the driving motor is arranged on the right side wall of the box body, and the brake device is arranged on one side of the cover body; the output shaft of the driving motor penetrates through the bottom of the box body and the cover body to be connected with the brake device, and bearings are arranged at the joints of the output shaft of the driving motor, the box body and the cover body; the transmission shaft penetrates through the right side wall of the box body to be meshed with the gear ring, and a bearing is arranged at the joint of the transmission shaft and the box body.

Furthermore, the right side wall of the box body is provided with a first threaded through hole, the motor connecting piece is provided with a first threaded blind hole matched with the first threaded through hole, the box body further comprises a first bolt matched with the motor connecting piece, and the motor connecting piece is fixed on the right side wall of the box body through the matching of the first bolt, the first threaded through hole and the first threaded blind hole.

Furthermore, the motor connecting piece is provided with a motor mounting groove for mounting a driving motor, a support lug is arranged on the side wall of the driving motor, a second threaded through hole is formed in the support lug, a second threaded blind hole is formed in the position, corresponding to the second threaded through hole, of the motor connecting piece, and a second bolt matched with the second threaded through hole and the second threaded blind hole is further included, and the driving motor is fixed in the motor mounting groove through the matching of the second bolt, the second threaded through hole and the second threaded blind hole.

Furthermore, the driving wheel is rotatably arranged on the motor connecting piece, and a bearing is arranged at the connecting part of the driving motor and the motor connecting piece.

Furthermore, the driving wheel comprises a wheel hub and a tire, wherein a plurality of circles of bulges are arranged on the outer surface of the wheel hub, the inner ring of the tire is covered on the plurality of circles of bulges, the wheel hub is made of nodular cast iron, the tire is made of rubber, and the central axis of the tire and the central axis of the wheel hub are overlapped.

Furthermore, a gear ring mounting groove is formed in one side, facing the gear box, of the hub, a third threaded blind hole is formed in the bottom of the gear ring mounting groove, a third threaded through hole is formed in the position, matched with the third threaded blind hole, on the gear ring, and a third bolt is further included; the central axis of the gear ring is coincident with the central axis of the hub.

Furthermore, the top of the gear box is provided with a rotating shaft mounting hole for mounting a rotating shaft of a steering wheel of a forklift, and the rotating shaft mounting hole is positioned right above the driving wheel.

Compared with the prior art, the invention has the following characteristics and beneficial effects:

1. the driving wheel cover of this equipment is established outside drive motor, has reduced the volume of whole drive assembly greatly, and meanwhile the distance of drive wheel and drive motor output shaft is also nearer, and whole transmission process only has the second grade transmission, has only set up a drive gear, and compact structure can provide bigger moment of torsion, brings bigger power for fork truck, makes it all comparatively light when the transport goods with go up the downhill path, and it also can easily scramble on the degree slope when the transport goods.

2. The driving motor is preferably a seven-pair-pole motor or an eight-pair-pole motor, and the seven-pair-pole motor and the eight-pair-pole motor can provide larger torque compared with a counter-pole motor commonly used by a traditional forklift.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a schematic sectional front view of the present invention.

FIG. 3 is a left side view of the present invention.

In the figure: the gear box comprises a gear box 1, a driving motor 2, a driving wheel 3, a motor connecting piece 4, a brake device 5, a box body 6, a cover body 7, a first threaded through hole 8, a first threaded blind hole 9, a first bolt 10, a motor mounting groove 11, a support lug 12, a second threaded through hole 13, a second threaded blind hole 14, a second bolt 15, an output tooth groove 16, a transmission gear 17, a transmission shaft 18, a transmission tooth groove 19, a hub 20, a tire 21, a gear ring mounting groove 23, a third threaded blind hole 24, a gear ring 25, a third threaded through hole 26, a third bolt 27 and a rotating shaft mounting hole 28.

Detailed Description

The invention will be described in further detail below with reference to the accompanying figures 1-3.

A drive assembly comprises a gear box 1, a drive motor 2 and a drive wheel 3.

Driving motor 2 transversely sets up, and 1 right side wall middle part of gear box is equipped with motor connecting piece 4, and driving motor 2 passes through motor connecting piece 4 to be fixed outside gear box 1, and 2 output shafts of driving motor pass gear box 3 and be fixed with brake equipment 5, and this brake equipment 5 is located 1 opposite side of gear box, driving motor 2 is preferred for seven antipodal motors or eight antipodal motors, compares in the 5 antipodal motors that traditional fork truck was used commonly, and seven antipodal and eight antipodal motors can provide bigger moment of torsion.

The preferable structure is as follows: the gear box 1 is a box body 6 with an opening on the left side, and a cover body 7 matched with the opening is arranged on the opening. First screw thread through-hole 8 has been seted up to 6 right side walls of box, be equipped with on the motor connecting piece 4 with the first screw thread blind hole 9 of first screw thread through-hole 8 complex, still include rather than the first bolt 10 of complex, motor connecting piece 4 is fixed at 6 right side walls of box through the cooperation of first bolt 10 with first screw thread through-hole 8, first screw thread blind hole 9. Offer the motor mounting groove 11 that is used for installing driving motor 2 on the motor connecting piece 4, be equipped with journal stirrup 12 on the 2 lateral walls of driving motor, offered second screw thread through-hole 13 on the journal stirrup 12, the position that corresponds with second screw thread through-hole 13 on the motor connecting piece 4 is equipped with second screw thread blind hole 14, still include with second screw thread through-hole 13, second screw thread blind hole 14 complex second bolt 15, driving motor 2 is fixed in motor mounting groove 11 through the cooperation of second bolt 15 with second screw thread through-hole 13, second screw thread blind hole 14.

The driving motor 2 is arranged on the right side of the box body 6, and the brake device 5 is arranged on one side of the cover body 7; the output shaft of the driving motor 2 penetrates through the bottom of the box body 6 and the cover body 7 to be connected with the brake device 5, and bearings are arranged at the joints of the output shaft of the driving motor 2, the box body 6 and the cover body 7.

The output shaft of the driving motor 2 in the gear box 1 is provided with a circle of output tooth grooves 16, the gear box 1 at one side of the output tooth grooves 16 is rotatably provided with a transmission gear 17 in transmission connection with the output tooth grooves 16, the transmission gear 17 is fixed with a transmission shaft 18, the central axis of the transmission shaft 18 coincides with the central axis of the transmission gear 17, one end of the transmission shaft 18 is fixedly connected with the transmission gear 17, the other end of the transmission shaft passes through the side wall of the gear box 1 and is provided with a circle of transmission tooth grooves 19, and the joint of the transmission shaft 18 and the box body 6 is provided with a bearing.

The driving wheel 3 is rotatably arranged on the right side of the gear box 1 and sleeved outside the driving motor 2, and is sleeved on the motor connecting piece 4, and a bearing is arranged at the joint of the driving wheel 3 and the motor connecting piece 4. The driving wheel 3 comprises a hub 20 and a tire 21, wherein a plurality of circles of bulges 22 are arranged on the outer surface of the hub 20, the inner circle of the tire 21 is wrapped on the plurality of circles of bulges 22, the hub 20 is made of nodular cast iron, the tire 21 is made of rubber, and the central axis of the tire 21 and the central axis of the hub 20 coincide.

A gear ring mounting groove 23 is formed in one side, facing the gear box 1, of the hub 20, a third threaded blind hole 24 is formed in the bottom of the gear ring mounting groove 23, a gear ring 25 is arranged in the gear ring mounting groove 23, a third threaded through hole 26 is formed in the gear ring 25 in a position matched with the third threaded blind hole 24, the gear ring 25 further comprises a third bolt 27, and the gear ring 25 is fixed in the gear ring mounting groove 23 through the matching of the third bolt 27, the third threaded through hole 26 and the third threaded blind hole 24; the central axis of the gear ring 25 is coincident with the central axis of the hub 23. The transmission shaft 18 penetrates through the right side wall of the box body 6 to be meshed with the gear ring 20 and drive the driving wheel 3 to rotate.

The top of the gear box 1 is provided with a rotating shaft mounting hole 28 for mounting a rotating shaft of a steering wheel of a forklift, and the rotating shaft mounting hole 28 is positioned right above the driving wheel 3.

The working process of the equipment is as follows:

an output shaft of a driving motor 2 fixed in the motor connecting piece 4 penetrates through the right side wall of the gear box 1, an output tooth groove 16 arranged on the output shaft of the driving motor 2 drives a transmission gear 17 to rotate, the transmission gear 17 drives a transmission shaft 18 fixed at the center of the transmission gear to rotate, a transmission tooth groove 19 on the transmission shaft 18 drives a tooth ring 20 to rotate, and a tooth ring 25 arranged on the driving wheel 3 drives the driving wheel 3 to rotate.

3 covers of drive wheel of this equipment are established outside driving motor 2, the volume of whole drive assembly has been reduced greatly, meanwhile the distance of drive wheel 3 and 2 output shafts of driving motor is also nearer, whole transmission process only has the second grade transmission, only has set up a drive gear 17, compact structure can provide bigger moment of torsion, bring bigger power for fork truck, it is all comparatively light when the transport goods with go up the downhill path, it also can easily scramble on 6 degrees slopes when the transport goods.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The utility model provides a drive assembly, includes gear box, driving motor, drive wheel, its characterized in that: the driving motor is transversely arranged, a motor connecting piece is arranged in the middle of the right side wall of the gear box, the driving motor is fixed outside the gear box through the motor connecting piece, an output shaft of the driving motor penetrates through the gear box and is fixed with a brake device, and the brake device is positioned on the other side of the gear box; the output shaft of a driving motor in the gear box is provided with a circle of output tooth grooves, a transmission gear in transmission connection with the output tooth grooves is rotationally arranged in the gear box on one side of the output tooth grooves, a transmission shaft is fixed on the transmission gear, the central axis of the transmission shaft is overlapped with the central axis of the transmission gear, one end of the transmission shaft is fixedly connected with the transmission gear, the other end of the transmission shaft penetrates through the side wall of the gear box and is provided with a circle of transmission tooth grooves, the driving wheel is rotationally arranged on the right side of the gear box and is sleeved outside the driving motor, and a gear ring meshed with the transmission tooth grooves is fixed on one side of the driving wheel facing the gear box.

2. The drive assembly of claim 1, wherein: the driving motor is a seven-pair-pole motor or an eight-pair-pole motor.

3. A drive assembly as claimed in claim 1 or 2, wherein: the gear box is a box body with an opening at the left side, a cover body matched with the gear box is arranged on the opening, the driving motor is arranged on the right side wall of the box body, and the brake device is arranged on one side of the cover body; an output shaft of the driving motor penetrates through the bottom of the box body and the cover body to be connected with the brake device, and bearings are arranged at the joints of the output shaft of the driving motor, the box body and the cover body; the transmission shaft penetrates through the right side wall of the box body to be meshed with the gear ring, and a bearing is arranged at the joint of the transmission shaft and the box body.

4. A drive assembly as claimed in claim 3, wherein: first screw thread through-hole has been seted up to the box right side wall, be equipped with on the motor connecting piece with first screw thread through-hole complex first screw thread blind hole, still include rather than complex first bolt, the motor connecting piece is fixed at the box right side wall through the cooperation of first bolt with first screw thread through-hole, first screw thread blind hole.

5. The drive assembly of claim 1 or 2 or 4, wherein: offer the motor mounting groove that is used for installing driving motor on the motor connecting piece, be equipped with the journal stirrup on the driving motor lateral wall, seted up second screw thread through-hole on the journal stirrup, the position that corresponds with second screw thread through-hole on the motor connecting piece is equipped with second screw thread blind hole, still includes with second screw thread through-hole, second screw thread blind hole complex second bolt, driving motor passes through the second bolt and fixes in the motor mounting groove with the cooperation of second screw thread through-hole, second screw thread blind hole.

6. The drive assembly of claim 5, wherein: the driving wheel is rotatably arranged on the motor connecting piece, and a bearing is arranged at the joint of the driving motor and the motor connecting piece.

7. The drive assembly of claim 1 or 2 or 4 or 6, wherein: the driving wheel comprises a wheel hub and a tire, a plurality of circles of bulges are arranged on the outer surface of the wheel hub, the inner ring of the tire is covered on the plurality of circles of bulges, the wheel hub is made of nodular cast iron, the tire is made of rubber, and the central axis of the tire and the central axis of the wheel hub coincide.

8. The drive assembly of claim 7, wherein: the gear ring mounting groove is formed in one side, facing the gear box, of the hub, a third threaded blind hole is formed in the bottom of the gear ring mounting groove, a third threaded through hole is formed in the position, matched with the third threaded blind hole, on the gear ring, and a third bolt is further included, and the gear ring is fixed in the gear ring mounting groove through the matching of the third bolt, the third threaded through hole and the third threaded blind hole; the central axis of the gear ring is coincident with the central axis of the hub.

9. The drive assembly of claim 1 or 2 or 4 or 6 or 8, wherein: the top of the gear box is provided with a rotating shaft mounting hole for mounting a rotating shaft of a steering wheel of a forklift, and the rotating shaft mounting hole is positioned right above the driving wheel.