CN220317282U

CN220317282U - Front driving force transmission forklift

Info

Publication number: CN220317282U
Application number: CN202321779090.XU
Authority: CN
Inventors: 衣学航; 陈洪庆; 王国村
Original assignee: Shandong Mingyu Heavy Industry Machinery Co Ltd
Current assignee: Shandong Mingyu Heavy Industry Machinery Co Ltd
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2024-01-09
Anticipated expiration: 2033-07-07

Abstract

The utility model relates to a front driving force transmission forklift, which belongs to the technical field of forklifts and comprises a cab, an axle, a power unit, a front axle with a main speed reducer in the axle, a rear axle, a steering axle, an engine in the power unit, a speed changing box with a hydraulic torque converter, a flexible disc, a transmission shaft, a tail balancing weight and a lifting weight.

Description

Front driving force transmission forklift

Technical Field

The utility model relates to the field of forklifts, in particular to a front driving force transmission forklift.

Background

The forklift is used as an industrial carrying vehicle and is used for loading and unloading, stacking and short-distance transportation of finished pallet cargoes, so that the forklift can lift corresponding loads, meanwhile, the rear wheels of the forklift can be kept to have enough adhesive force with the ground, the forklift can be guaranteed to normally run and turn, tilting is prevented, and a balancing weight, namely a balancing weight, needs to be arranged at the tail of the forklift. The balancing weight is guaranteed to be safe in operation of the whole vehicle, meanwhile, the weight of the whole vehicle is increased, manufacturing cost of equipment manufacturers is increased, fuel consumption of later periods of users is increased, a conventionally configured gearbox is matched with a clutch, operation is complex, speed switching is unsmooth, and climbing capacity is poor.

Disclosure of Invention

The purpose of the utility model is that: in order to overcome the defects in the prior art, the novel front driving force transmission forklift is provided, the gravity center of the whole power unit is moved backwards through the rearrangement of a power transmission system, the weight of a balancing weight is reduced, an automatic gearbox with a hydraulic torque converter is configured, automatic gear shifting can be achieved, and meanwhile the climbing capacity of the forklift is increased.

The technical scheme for solving the technical problems is as follows:

the utility model provides a front driving force transmission forklift which comprises a cab, an axle and a power unit, wherein a front axle with a main speed reducer in the axle is a driving axle, a rear axle is a steering axle, an engine in the power unit is a source power part, the engine is connected with a gearbox with a hydraulic torque converter through a flexible disc, the input end of the main speed reducer of the front axle is connected with a transmission shaft, the other end of the transmission shaft is connected with the output end of the gearbox, and the transmission shaft moves the gravity center position of the power unit to the side of a tailstock balancing weight.

Compared with the prior art, the utility model has the following beneficial effects:

according to the front driving force transmission forklift provided by the utility model, the front axle with the main speed reducer is taken as a driving axle, the transmission shaft is introduced as a power transmission transition part, one end of the transmission shaft is connected with the front axle, and the other end of the transmission shaft is connected with the power unit. The engine is used as a power source in the power unit, and is flexibly connected with the gearbox with the hydraulic torque converter through the flexible disc, so that the overall size of the power unit is reduced, the space occupation ratio of the power unit is reduced, interference in the backward movement process of the power unit is effectively prevented, the speed switching is smoother in the gear shifting control process due to the hydraulic torque converter arranged in the gearbox, the occurrence of clamping is avoided, the torque increasing effect is better, and the equipment has stronger climbing capacity when in low speed.

Preferably, the gearbox is provided with a gear shifter capable of realizing forward or backward movement, and the forward or backward movement is configured with a low speed mode and a high speed mode. A gear shifting handle is arranged below the steering wheel of the cab.

Through the beneficial effect that adopts above-mentioned technical scheme to bring, operating personnel realizes hydraulic gear shift through the gear shift handle of steering wheel below, can make the vehicle convenient switch to advance fender or the mode of backing off, and the vehicle can both realize low-speed and high-speed traveling in advancing fender and backing off, and driving simple operation, speed switch is more smooth and easy, avoids the card of the in-process of shifting.

Preferably, the rear axle realizes the steering function through the expansion and contraction of the first oil cylinder.

The technical scheme has the beneficial effects that the rear axle is used for oil feeding or oil discharging through the front cavity and the rear cavity of the hydraulic cylinder, and the steering axle is driven by extending or retracting the piston rod, so that steering is realized.

Preferably, the front driving force transmission forklift further comprises an air storage tank, and the air storage tank provides an air source for the brake booster pump.

The pneumatic braking system of the whole vehicle has the beneficial effects that the large-tonnage braking performance is better due to the adoption of the technical scheme.

Preferably, the front driving force transmission forklift further comprises a forklift mast, wherein the forklift mast is connected with a forklift chassis through a connecting device, and the connecting device is provided with a pin shaft and a second oil cylinder; the fork truck comprises a fork truck body, a fork truck frame, a first oil cylinder, a second oil cylinder, a fork truck frame, a pin shaft, a connecting device and a connecting device.

Through the beneficial effect that adopts above-mentioned technical scheme to bring, fork portal passes through the round pin hub connection with fork truck chassis bottom, and the mode that the second hydro-cylinder is passed through on upper portion makes fork portal and fork truck chassis keep certain displacement, and the impact to the fork truck chassis when reducible fork portal fork goods operation, extension fork portal's life.

Drawings

Fig. 1 is a front view of the present utility model.

Fig. 2 is a bottom view of the present utility model.

Fig. 3 is an isometric view of the present utility model.

FIG. 4 is a perspective view of a drive shaft according to the present utility model

In the figure, 1, a cab; 2. balancing weight; 3. an axle; 4. a power unit; 5. a transmission shaft; 6. a shift handle; 7. a gas storage tank; 8. a brake booster pump; 9. a shifter; 10. a fork portal; 11. a second cylinder; 12. a pin shaft; 13. a forklift chassis; 14. a first cylinder; 301. a rear axle; 302. a front axle; 303. a main speed reducer; 401. a gearbox; 402. an engine; 403. a heat sink.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

The utility model provides a front driving force transmission forklift, which is shown in fig. 1-4, and comprises a cab 1, an axle 3 and a power unit 4, wherein the cab 1 is an operation area of forklift operators, the axle 3 comprises a front axle 302 and a rear axle 301, the front axle 302 is provided with a main speed reducer 303, the front axle 302 is a driving axle, the rear axle 301 is a steering axle, the steering of the rear axle 301 can be realized through the expansion and contraction of a first oil cylinder 14, the power unit 4 is used as a power part of the whole machine operation, an engine 402 is used as a source power, the power output end of the engine 402 is flexibly connected with a gearbox 401 with a hydraulic torque converter through a flexible disc, the fan side of the engine 402 is provided with a radiator 403, and the radiator 403 is used for cooling and heat dissipation in the engine operation process. One end of a transmission shaft 5 for transmitting power is connected with the input end of a main reducer 303 of the front axle 302, the other end of the transmission shaft is connected with the output end of a gearbox 401, and when an engine 402 works, the power is transmitted to the gearbox 401 through the transmission shaft 401, and the power is transmitted to the front axle 302 through the connected transmission shaft 5. In order to enable the forklift to lift corresponding loads, meanwhile, the rear wheels of the forklift can be kept to have enough adhesive force with the ground, the forklift can be guaranteed to run normally and turn, tilting is prevented, the balancing weight 2 is arranged at the tail of the forklift, the balancing weight 2 is used for adjusting the position of the center of gravity of the whole forklift, the position of the center of gravity of the whole forklift is enabled to move backwards, a 3T forklift is taken as an example, when the total length of the transmission shaft 5 is 800mm, the center of gravity of the power unit 4 moves backwards by 800mm, the center of gravity of the power unit 4 is close to the balancing weight 2, the weight of the balancing weight 2 at the tail of the forklift is reduced by 400kg, the weight of the whole forklift can be effectively reduced, meanwhile, the center of gravity of the power unit 4 moves backwards, the power unit 4 is far away from a work control area of the cab 1, and the influence of noise on operators is reduced.

The front driving force transmission forklift is provided with a forward gear and a backward gear, the gear shifting handle 6 is positioned below a steering wheel of the cab 1, hydraulic gear shifting and speed regulation are realized through a gear shifter 9 of the gearbox 401 body, the forward gear and the backward gear are both provided with a low-speed mode and a high-speed mode, the driving process is simplified, and the gear shifting and speed regulation process is smooth.

The whole vehicle is provided with a pneumatic forklift system, the forklift chassis 13 is provided with the air storage tank 7, when the engine 402 works, the air compressor of the engine 402 can automatically supply air to the air storage tank 7, the air storage tank 7 provides an air source for the brake booster pump 8, and the pneumatic brake system is started to realize brake.

The fork portal 10 is as the high bearing part when fork truck operation, fork portal 10 passes through connecting device and is connected with fork truck chassis 13, connecting device includes a round pin axle 12 and a second hydro-cylinder 11, round pin axle 12 is fixed fork portal 10 bottom and fork truck chassis 13, fork portal 10 is connected to second hydro-cylinder 11 one end, fork truck chassis 13 is connected to its other end, connecting device is equipped with two sets of, and be located the left and right sides of fork truck automobile body respectively, fork portal 10 adopts the connected mode of round pin axle 12 with fork truck chassis 13 adoption bottom, make fork portal 10 and fork truck chassis 13 keep certain movable displacement.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. Front drive power transmission fork truck, including driver's cabin (1), axle (3), power unit (4), its characterized in that: the front axle (302) with the main speed reducer (303) in the axle (3) is a driving axle, the rear axle (301) is a steering axle, the engine (402) in the power unit (4) is a source power component, the engine (402) is connected with the gearbox (401) with the hydraulic torque converter through a flexible disc, the input end of the main speed reducer (303) of the front axle (302) is connected with the transmission shaft (5), the other end of the transmission shaft (5) is connected with the output end of the gearbox (401), and the transmission shaft (5) moves the gravity center position of the power unit (4) to the side of the tail balancing weight (2).

2. The front drive power transmitting forklift of claim 1, wherein: the gearbox (401) is provided with a gear shifter (9) capable of realizing forward movement or backward movement, and the forward movement or the backward movement is configured with a low speed mode and a high speed mode.

3. The front drive power transmitting forklift of claim 1, wherein: a gear shifting handle (6) is arranged below the steering wheel of the cab (1).

4. The front drive power transmitting forklift of claim 1, wherein: the rear axle (301) realizes a steering function through the expansion and contraction of the first oil cylinder (14).

5. The front drive power transmitting forklift of claim 1, wherein: the novel brake booster pump also comprises an air storage tank (7), wherein the air storage tank (7) provides an air source for the brake booster pump (8).

6. The front drive power transmitting forklift of claim 1, wherein: the forklift truck further comprises a forklift truck frame (10), wherein the forklift truck frame (10) is connected with a forklift truck chassis (13) through a connecting device, and the connecting device is provided with a pin shaft (12) and a second oil cylinder (11); the fork truck is characterized in that the bottom of the fork truck frame (10) is fixedly connected with the fork truck chassis (13) through the pin shaft (12), the fork truck frame (10) is connected to one end of the second oil cylinder (11), the fork truck chassis (13) is connected to the other end of the second oil cylinder, and the connecting devices are provided with two groups and are respectively positioned on the left side and the right side of the fork truck body.