TWM585781U - Electric pallet truck - Google Patents

Abstract

An electric pallet truck mainly includes a pallet truck body and a driving device. The driving device includes a gear box, a gear box cover, a driving motor, at least one rear wheel, and a driving gear set. An accommodation space with an opening is provided on the side, the gearbox cover is fixed on one side of the gearbox and closes the opening, the driving gear set is disposed in the accommodation space, and the other side of the gearbox corresponds to the driving gearset There is a platform, the drive motor is provided on the platform, the at least one rear wheel is provided on one side of the gear box, and the power of the drive motor is changed to low speed and high torque by the drive gear set, and then the at least one rear wheel The output is used to cover the driving gear set in the accommodating space surrounded by the gear box and the gear box cover, so that it will not be involved in foreign objects and affect the operation during high-speed operation.

Description

Electric pallet truck

This creation is related to electric pallet trucks, especially a structure that changes the power of the motor to a low speed and high torque with a gear set and drives the wheel.

According to the existing electric pallet trucks are mainly used to move goods in warehouses and stores, so as to improve work efficiency and reduce the effort required for staff to carry heavy objects. Generally common electric pallet trucks mainly include a body, a fork rack, an operation Device and a driving device, the body is provided with a battery, the fork frame is provided on the front side of the body, and the bottom of the fork frame is provided with a front wheel, and the operating device is provided on the rear side of the body, which can be controlled by a user. At the bottom of the operating device.

The driving device mainly includes a motor, a speed reducer, and a rear wheel. The speed reducer is used to reduce the power output by the motor, and a first sprocket is provided on one side of the motor, and the rear wheel corresponds to the first chain. The wheel is provided with a second sprocket, and a chain is further connected to the first sprocket and the second sprocket. The first sprocket and the chain are driven by the motor to drive the rear wheel to rotate.

However, under long-term use of the chain, the chain will become loose due to the consumption of tensile force, leading to an increase in the failure rate, and the driving device is exposed to the body. Therefore, when the driving device is activated, it is easy to involve the garbage and debris on the ground, and the interference affects the operation of the moving device in the area. Although it is covered by a design cover, it cannot be completely sealed due to heat dissipation considerations. There are still the problems mentioned above.

In view of the shortcomings of the above-mentioned conventional technology, one of the purposes of this creation is to provide an electric pallet truck.

In order to achieve the above-mentioned purpose, the electric pallet truck of this creation mainly includes: a pallet truck body, a front fork unit and a power supply part are arranged on one side, a front wheel unit is disposed on the bottom of the front fork unit, and the pallet truck A control unit is provided on the other side of the body. And a driving device provided at the bottom of the control unit. The driving device includes a gear box, a gear box cover, a driving motor, at least one rear wheel, and a driving gear set. A side of the gear box is provided with an opening. The gear box cover is fixed on one side of the gear box and closes the opening. The driving gear set is set in the accommodating space. The other side of the gear box is provided with a platform corresponding to the driving gear set. The motor is arranged on the platform, the at least one rear wheel is arranged on one side of the gear box, and the power of the driving motor is changed to low speed and high torque through the driving gear set, and then output by the at least one rear wheel.

Based on the structural characteristics of low speed and high torque of the driving gear set, this article can increase the weight that can be carried, and the driving gear set is covered in the gear box. And the housing space enclosed by the gear box cover, so that it will not be caught in foreign objects and affect the operation during high-speed operation.

(1) ‧‧‧Electric Pallet Truck

(2) ‧‧‧Trailer

(21) ‧‧‧Fork unit

(211) ‧‧‧Fork

(22) ‧‧‧Power Supply

(23) ‧‧‧Front wheel unit

(24) ‧‧‧Control unit

(241) ‧‧‧Hydraulic mechanism

(242) ‧‧‧Joystick

(243) ‧‧‧handle

(25) ‧‧‧Control agency

(251) ‧‧‧Shell

(252) ‧‧‧Level

(253) ‧‧‧Security Button

(254) ‧‧‧Acceleration control

(3) ‧‧‧Drive

(31) ‧‧‧Gearbox

(311) ‧‧‧Accommodation space

(312) (322) ‧‧‧Fixed

(313) ‧‧‧Platform

(314) ‧‧‧First perforation

(315) ‧‧‧Second Perforation

(32) ‧‧‧Gearbox cover

(321) ‧‧‧The third perforation

(33) ‧‧‧Drive motor

(331) ‧‧‧Drive shaft

(34) ‧‧‧Rear

(341) ‧‧‧Second tooth hole

(35) ‧‧‧Drive gear set

(351) ‧‧‧First transmission gear

(352) ‧‧‧First driven gear

(353) ‧‧‧Second transmission gear

(354) ‧‧‧Second driven gear

(355) ‧‧‧Third transmission gear

(356) ‧‧‧Drive Gear

(357) ‧‧‧First tooth hole

(36) ‧‧‧Drive shaft

(361) (362) ‧‧‧Tooth pattern

(363) ‧‧‧External thread

(4) ‧‧‧ Cover

(P1) ‧‧‧washer

(B1) ‧‧‧bearing

(S1) ‧‧‧Fixed element

Figure 1: A three-dimensional illustration of this creation.

Figure 2: An exploded view of this creation.

Figure 3: A perspective view of the driving device of this creation.

FIG. 4 is an exploded view of FIG. 3.

Figure 5: A perspective view of the driving device of this creation.

Figure 6: A partial plan view of the driving device of this creation.

Please refer to FIG. 1 to FIG. 6, which is a preferred embodiment of the electric cart (1), which mainly includes: a cart body (2) and a driving device (3), wherein the cart The front side of the vehicle body (2) is provided with a front fork unit (21) and a power supply member (22). The front fork unit (21) has two fork frames (211) arranged at intervals, and a front wheel unit (23) is further provided. The bottom of the front fork unit (21). In this embodiment, the front wheel unit (23) is a plurality of wheels arranged at the bottom of each fork frame (211) near the front end, and behind the trailer body (2). A control unit (24) is provided on the side.

As mentioned above, the control unit (24) includes an oil pressure mechanism (241), a control lever (242), and a set of handles (243) arranged symmetrically. One end of the control lever (242) It is connected to the oil pressure mechanism (241), and the other end is connected to the handles (243). A control mechanism (25) is included between the handles (243), which includes a control rod (242) end. A housing (251), a spirit level (252) provided inside the housing (251), a safety button (253) provided on the top of the housing (251), and two housings (251). Acceleration control on the side (254).

The acceleration control button (254) is electrically connected to the power supply (22), and the operator can control the unilateral acceleration control button (254) according to environmental conditions or usage habits to drive the creation forward or backward; the safety The button (253) is electrically connected to the power source (22), which is mainly to prevent the operator from walking on the electric pallet truck (1) in the state where the handle is pressed and the handle (243) is depressed. When the speed in front is too slow, the safety button (253) will touch the human body. At this time, the power will be interrupted and the operation will be stopped to avoid the electric pallet truck (1) being faster than the operator, which will cause the operator to be injured. The situation arises. In addition, the spirit level (252) is mainly used to cut off the power when the handle (243) is pushed down too much, so that the operator cannot use electric acceleration, and can only operate the creation by hand pushing.

The driving device (3) is located at the bottom of the control unit (24). The driving device (3) mainly includes a gear box (31), a gear box cover (32), a driving motor (33), at least one rear A wheel (34) and a driving gear set (35), the gear box cover (32) is mated to one side of the gear box (31), the driving motor (33) and the at least one rear wheel (34) are set On the other side of the gear box (31), the driving gear set (35) is arranged inside the gear box (31).

An accommodation space (311) with an opening is provided on one side of the gear box (31), and the gear box cover (32) is fixed on one side of the gear box (31) and closes the opening. The accommodation space (311) is hermetically sealed, and in order to improve the sealing effect, a gasket (P1) is further provided between the gearbox (31) and the gearbox cover (32); the gearbox (31) and The gear box cover (32) is correspondingly provided with a plurality of fixed seats (312) (322). Each of the fixed seats (312) is embedded with a bearing (B1), and the driving gear set (35) is provided in the accommodation space. In the fixed seats (312) of (311), a side of the gear box (31) facing away from the accommodation space (311) is provided with a platform (313), and the platform (313) is provided with a first perforation ( 314) and a second perforation (315), the gearbox cover (32) is provided with a third perforation (321) coaxial with the second perforation (315), the first perforation (314), the second perforation ( 315) and the third perforation (321) are connected to the accommodating space (311), the driving motor (33) is fixed on the platform (313), and is electrically connected to the power supply (22), and the driving The motor (33) has a driving shaft (331) aligned with the first perforation (314), and the at least one rear wheel (34) is disposed on one side of the gear box (31) and is the same as the driving motor (33) Side and align the second perforation (315). In this embodiment, the driving motor (33) is a brushless motor, but is not limited thereto. The brushless motor has the characteristics that it is not easy to generate high temperature arcs and metal shavings, so it has good durability and can reduce losses.

The driving gear set (35) includes a first transmission gear (351), one end of which is connected to the driving shaft (331) of the driving motor (33) through the first perforation (314), and a first driven gear (352 ) Meshed with the first transmission gear (351), a second transmission gear (353) is provided on the side of the first driven gear (352) and rotates with the first driven gear (352), a second driven gear A driving gear (354) is meshed with the second transmission gear (353), a third transmission gear (355) is provided on the side of the second driven gear (354) and rotates with the second driven gear (354), A driving gear (356) is meshed with the third transmission gear (355). The driving gear (356) is provided with a first toothed hole (357) in the axial direction. The center of the at least one rear wheel (34) is provided in the axial direction. There is A second toothed hole (341); and the first transmission gear (351), the first driven gear (352), the second transmission gear (353), the second driven gear (354), and the third transmission gear ( 355) and two ends of the driving gear (356) are respectively fixed in the bearings (B1) of the corresponding fixed seat (312). In this embodiment, the second transmission gear (353) is integrally extended from the first driven gear (352), and the third transmission gear (355) is integrally extended from the second driven gear (354) Out, but not limited to this.

As mentioned above, the driving gear set (35) further includes a transmission shaft (36), and the transmission shaft (36) is sequentially passed through the second tooth profile from one side of the at least one rear wheel (34). Hole (341), the second perforation (315), the first toothed hole (357) and the third perforation (321), and the end of the transmission shaft (36) is fixed to the end by a fixing element (S1) Outside the gear box cover (32), in this embodiment, the fixing element (S1) is a nut, and the end of the transmission shaft (36) is provided with an external thread (363); and the transmission shaft (36) corresponds to the first The toothed hole (357) and the second toothed hole (341) are respectively provided with corresponding tooth patterns (361) (362). When the driving gear (356) is rotated, the transmission shaft can be used. (36) Drive the at least one rear wheel (34) to run.

Furthermore, this creation further includes an outer cover (4), which is sleeved on the outer edge of the end of the transmission shaft (36) and fixed to the gear box cover (32), so as to expose the bare The end of the transmission shaft (36) outside the gear box cover (32) is covered. This creation does not limit the manner in which the outer cover (4) is fixed to the gear box cover (32). The drawing is fixed by screws. Way to express it.

Here, the author uses the driving gear set (35) to shift the power of the driving motor (33) to a low speed and high torque, and then outputs it from the at least one rear wheel (34), so that This creation can be operated in a relatively labor-saving manner, and the driving gear set (35) is entirely enclosed in the gear box (31) and the gear box cover (32), so no previous technology is involved in foreign objects The problem arises. It is worth mentioning that when replacing the at least one rear wheel (34), the author only needs to disassemble the outer cover (4) and the fixing element (S1) at the end of the transmission shaft (36). Replace it.

However, the above is only a preferred embodiment of this creation, and is not intended to limit the characteristics of this creation. For example, any re-creation that uses the technical means and creation principles of this creation is still within the scope of this creation. Therefore, the descriptions in the illustrations and the description of this creation are not intended to limit the scope of the implementation of this creation; any changes and modifications made by those skilled in the art without departing from the spirit and scope of this creation should be covered in this creation Within the scope of the patent, it is reasonable.

Claims (8)

An electric pallet truck mainly comprises: a pallet truck body, a front fork unit and a power supply part are arranged on one side, a front wheel unit is arranged on the bottom of the front fork unit, and a control unit is arranged on the other side of the trailer body A unit; and a drive device provided at the bottom of the control unit, the drive device including a gear box, a gear box cover, a drive motor, at least one rear wheel, and a drive gear set, one side of the gear box is provided with an opening In the accommodation space, the gear box cover is fixed on one side of the gear box and closes the opening. The driving gear set is disposed in the accommodation space. The other side of the gear box is provided with a platform corresponding to the driving gear set. The driving motor is disposed on the platform, the at least one rear wheel is disposed on one side of the gear box, and the power of the driving motor is changed to low speed and high torque through the driving gear set, and then output by the at least one rear wheel. The electric pallet truck according to item 1 of the scope of patent application, wherein the gearbox is provided with a first perforation corresponding to the driving motor and a second perforation corresponding to the rear wheel, the first perforation and the second perforation. The drive motor has a drive shaft, the drive gear set includes a first transmission gear, one end of which is connected to the drive shaft through the first hole, and a first driven gear is engaged with the first A transmission gear, a second transmission gear are disposed on one side of the first driven gear and rotate with the first driven gear, a second driven gear is meshed with the second transmission gear, and a third transmission gear is disposed on the One side of the second driven gear rotates with the second driven gear, a driving gear meshes with the third driving gear, and the rear wheel train rotates as the driving gear rotates. The electric pallet truck according to item 2 of the scope of patent application, wherein the driving gear is provided with a first toothed hole in the axial direction, the rear wheel is provided with a second toothed hole in the axial direction, and the gear box cover is provided with a first The second perforation is coaxial with the third perforation. The driving gear set further includes a transmission shaft. The transmission shaft is sequentially passed through the second toothed hole, the second hole, the first toothed hole, and the third hole. The end of the transmission shaft is fixed outside the gear box cover with a fixing element. The transmission shaft is provided with corresponding tooth patterns corresponding to the first toothed hole and the second toothed hole. The electric tractor according to item 3 of the scope of patent application, wherein the gear box and the gear box cover correspond to the first transmission gear, the first driven gear, the second transmission gear, the second driven gear, and the third The driving gear and the driving gear are respectively provided with a fixed seat, and each of the fixed seats is respectively embedded with a bearing. The first driving gear, the first driven gear, the second driving gear, the second driven gear, and the third driving gear. And the driving gear is fixed in the corresponding bearing. The electric tractor according to item 3 of the scope of patent application, further comprising an outer cover, which is sleeved on the outer edge of the end of the transmission shaft and is fixed on the gear box cover. According to the electric pallet truck described in item 2 of the patent application scope, wherein the second transmission gear train is integrally extended from the first driven gear, and the third transmission gear train is integrally extended from the second driven gear. The electric carriage according to item 1 of the patent application scope, wherein the drive motor is a brushless motor. The electric trailer according to item 1 of the scope of patent application, wherein the control unit is provided with a level inside.