CN113666301A

CN113666301A - Forklift system

Info

Publication number: CN113666301A
Application number: CN202110805658.XA
Authority: CN
Inventors: 何碧容
Original assignee: Chongqing Amm Machinery Manufacturing Co ltd
Current assignee: Chongqing Amm Machinery Manufacturing Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-11-19

Abstract

The invention discloses a forklift system, which comprises an intermediate component; the tilting device comprises a tilting device, a lifting device, a deviation device, a fork foot mounting frame, a push-out device, an operation assembly and a multi-way control valve group, wherein an intermediate assembly is arranged in the front of a vehicle head, the tilting device is arranged between the intermediate assembly and the vehicle head, the lifting device is arranged on the intermediate assembly, the deviation device is arranged on the intermediate assembly and can deviate along the left side or the right side of the vehicle head, the fork foot mounting frame is arranged on the deviation device, and the fork foot assembly is arranged on the fork foot mounting frame. The pushing device is arranged on the fork foot mounting frame, the multi-path control valve group is arranged on the vehicle head, and the multi-path control valve group is connected with the inclining device, the lifting device, the deviation device and the pushing device; the fork leg assembly can be driven to pitch forward and lean backward, or lift, or deflect or push the goods on the fork leg assembly out. This fork truck system, can be fast, safe with the orderly pile of goods on the fork truck in the arbitrary place, and then raise the efficiency and reduce the goods accidental injury.

Description

Forklift system

Technical Field

The invention relates to the field of logistics machinery, in particular to a forklift system.

Background

With the rapid development of economy, the quality, reliability and production efficiency of engineering machinery and equipment are higher and higher. At present, in the transportation process of products, goods need to be moved in or out in general. The traditional method is to move goods in or out through manpower, then stack and carry, and the handling process needs to consume a large amount of manpower, and not only intensity of labour is big, and is efficient, also has some potential safety hazards simultaneously. The advent of industrial handling vehicles solved some of the problems. Industrial transportation vehicles are widely used in ports, stations, airports, cargo yards, factory workshops, warehouses, distribution centers, and the like, and are equipments essential for carrying and loading/unloading pallet goods in cabins, carriages, and containers.

The forklift is an industrial carrying vehicle, plays a very important role in a logistics system of an enterprise, is a main force in material carrying equipment, and is widely applied to various departments in national economy such as stations, ports, airports, factories, warehouses and the like. When the forklift is used, a worker firstly carries goods to a carrying device of the forklift, then the forklift is driven to transport the goods to a destination, and the worker then carries the goods on the forklift down for stacking, so that the efficiency is relieved to a certain extent, but the following problems exist: 1. the goods need to be manually carried in the process of loading and unloading; 2. when the goods are placed, the goods cannot be shifted left and right, and the goods are placed at any required position; 3. only simple lifting can be performed; 4. in the transportation process, the phenomenon of goods sliding easily appears.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a forklift system which can quickly and safely stack goods on a forklift at any place in order, so that the efficiency is improved and the accidental injury of the goods is reduced.

In order to achieve the purpose, the invention is realized by the following technical scheme: a forklift system comprising:

the middle assembly is arranged at the front part of the vehicle head, and the bottom end of the middle assembly is hinged with the vehicle head;

the tilting device is arranged between the middle assembly and the vehicle head and used for driving the middle assembly to rotate;

the lifting device is arranged on the middle assembly, can ascend or descend along the middle assembly, and can ascend and descend twice;

the shifting device is arranged on the middle assembly, can shift the fork foot mounting frame along the left side or the right side of the locomotive and is arranged on the shifting device and is positioned on one side far away from the locomotive;

the pushing device is arranged on the fork leg mounting rack and can extend or retract along the fork leg assembly so as to push the goods on the fork leg assembly out;

the operating assembly is arranged on the vehicle head; and

the multi-path control valve group is arranged on the locomotive head, an oil inlet end and an oil return end of the multi-path control valve group are both connected with a hydraulic station of the locomotive head, and the multi-path control valve group comprises a tilting multi-path control valve, a lifting multi-path control valve, an offset multi-path control valve and a pushing multi-path control valve; the operation assembly is connected with the multi-path control valve, the lifting multi-path control valve, the offset multi-path control valve and the push-out multi-path control valve, and the tilting multi-path control valve, the lifting multi-path control valve, the offset multi-path control valve and the push-out multi-path control valve are respectively connected with the tilting device, the lifting device, the offset device and the push-out device; the operating assembly is operated to drive the fork foot assembly to pitch forwards and back, or lift, or deflect or push the goods on the fork foot assembly out.

Further, the operating assembly comprises a round shaft, an operating rod, a sleeve and a connecting pipe; the circle hub connection be in the locomotive is overhead, it is the L venturi tube to release the action bars, the action bars has four, every the tip of releasing the action bars is provided with one the sleeve, every be connected with one on the sleeve the connecting pipe, the sleeve can rotate the cover and establish the circle is epaxial, connecting pipe one end with the sleeve is articulated, in addition one end respectively with incline and face upward the multiple control valve the lift multiple control valve the skew multiple control valve with it connects to release the multiple control valve.

Furthermore, the tilting device comprises a main shaft, a shaft sleeve, a tilting oil cylinder and a tilting oil path system; the main shaft is arranged at the bottom end of the headstock along the left side and the right side of the headstock, the shaft sleeve is arranged on the middle assembly and can be sleeved on the main shaft in a rotating manner, one end of the tilting oil cylinder is hinged with the headstock, and a telescopic shaft of the tilting oil cylinder is hinged with the middle part of the middle assembly;

the tilting oil circuit system comprises a tilting oil inlet pipe, a tilting oil return pipe and a tilting steering valve, wherein the tilting steering valve is arranged on the middle assembly, and one end of the tilting oil inlet pipe and one end of the tilting oil return pipe are connected with the tilting multi-way control valve and then are connected with an oil inlet and an oil return port of the tilting oil cylinder respectively.

Further, the lifting device comprises a first lifting mechanism, a second lifting mechanism and a lifting oil way system;

the first-time lifting mechanism comprises a first lifting oil cylinder and a strip-shaped lifting plate; the middle assembly comprises two side plates and a bottom plate, the two side plates are oppositely arranged along the left and right direction of the vehicle head, the two side plates are connected by the bottom plate, first vertical guide grooves are formed in the opposite surfaces of the two side plates, the two strip-shaped lifting plates are slidably clamped with the two first vertical guide grooves respectively, the first lifting oil cylinder is vertically arranged on the bottom plate, and a telescopic rod of the first lifting oil cylinder is connected with the top of each strip-shaped lifting plate;

the secondary lifting mechanism comprises an oil cylinder mounting plate, a second lifting oil cylinder, a chain guide wheel and a pulling chain, the oil cylinder mounting plate is connected between the two strip-shaped lifting plates and is positioned on one side close to the ground, the second lifting oil cylinder is vertically mounted on the oil cylinder mounting plate, the chain guide wheel is arranged at the end part of a telescopic shaft of the second lifting oil cylinder, one end of the pulling chain is mounted on the oil cylinder mounting plate, and the other end of the pulling chain is connected with the deviation device after bypassing the chain guide wheel;

the lifting oil way system comprises a lifting oil inlet pipe, a lifting oil return pipe and a lifting steering valve; the lifting steering valve is arranged on the middle assembly, the first sections of the lifting oil inlet pipe and the lifting oil return pipe are respectively connected with the lifting multi-way control valve and then connected with the lifting steering valve, the tail ends of the lifting oil inlet pipe and the lifting oil return pipe are respectively provided with two branch pipes, and the two branch pipes at the tail ends of the lifting oil inlet pipe and the lifting oil return pipe are respectively connected with oil inlets and oil return ports of the first lifting oil cylinder and the second lifting oil cylinder.

Further, first time elevating system still includes first antifriction bearing, first antifriction bearing sets up the outside of bar lifter plate, the bar lifter plate passes through first antifriction bearing with the lateral wall joint and the roll connection of first vertical guide way.

Further, the deviation device comprises a deviation mounting frame, a double-head telescopic oil cylinder, a connecting frame and a deviation oil circuit system; the offset mounting frame comprises an offset mounting plate and two side plates, the offset mounting plate is arranged in parallel with the middle assembly and is positioned on one side far away from the vehicle head, the pulling chain is connected with the offset mounting plate, the two side plates are arranged on the offset mounting frame at intervals, second vertical guide grooves are formed in the opposite inner side surfaces of the two strip-shaped lifting plates, and the two side plates are respectively clamped in the second vertical guide grooves in a sliding manner;

an upper slide rail extending along the left and right directions of the forklift is arranged at the top of the offset mounting plate, an upper slide groove is arranged at the top end of the connecting frame, the upper slide groove is reversely buckled on the upper slide rail and can slide along the upper slide rail, the double-end telescopic oil cylinders are arranged on the offset mounting plate, telescopic rods are arranged at two ends of each double-end telescopic oil cylinder, the telescopic rods at two ends of each double-end telescopic oil cylinder can be telescopic along the left and right directions of the forklift, the telescopic rods at two ends of the two double-end telescopic oil cylinders are respectively connected with the left side and the right side of the connecting frame, and the fork foot mounting frame is arranged on the connecting frame and is positioned at one side far away from the head of the forklift;

the offset oil way system comprises an offset oil inlet pipe, an offset oil return pipe and an offset steering valve, wherein the offset steering valve is arranged on the intermediate assembly, one end of the offset oil inlet pipe and one end of the offset oil return pipe are respectively connected with the offset multi-way control valve, and then the offset oil inlet pipe and one end of the offset oil return pipe are respectively connected with an oil inlet and an oil return port of the offset oil cylinder after being connected with the offset steering valve.

Furthermore, the excursion device also comprises two guide pipe plates, the two guide pipe plates are vertically arranged on the middle assembly at intervals, clamping grooves are formed in the opposite surfaces of the guide pipe plates, and the first sections of the excursion oil inlet pipe and the excursion oil return pipe are bent to form a U-shaped clamping and arranged in the clamping grooves.

Furthermore, the deviation device further comprises a first oil pipe guide wheel, the first oil pipe guide wheel is arranged at the end part of the telescopic shaft of the second lifting oil cylinder, and the deviation oil inlet pipe and the deviation oil return pipe simultaneously bypass through the first oil pipe guide wheel and are connected with the deviation multi-way control valve.

Further, the push-out device comprises a push-out oil cylinder, a push-out assembly, a push disc and a push-out oil path system; one end of the push-out assembly is connected to the fork foot mounting frame and can be extended or shortened, the push disc is connected to the other end of the push-out assembly, the push-out oil cylinder is hinged to the fork foot mounting frame, and a telescopic rod of the push-out oil cylinder is hinged to the push-out assembly;

the push-out assembly comprises a front support column, a rear support column, a push rod group, a front connecting pipe and an eccentric seat; the front supporting columns are vertically arranged on the fork leg mounting rack in a spaced and opposite mode, front guide grooves are vertically and oppositely formed in opposite surfaces of the two front supporting columns, the rear supporting columns are arranged in a spaced mode with the front supporting columns, the push disc is connected between the two rear supporting columns, rear guide grooves are vertically and oppositely formed in opposite surfaces of the two rear supporting columns, the push rod groups are divided into two groups, and the two groups of push rod groups are parallelly and alternately located between the front supporting columns and the rear supporting columns;

the push rod group comprises a first push rod, a second push rod, a third push rod and a fourth push rod; the end parts of the first push rod and the second push rod are hinged with each other, a first bearing seat is arranged at the other end of the first push rod, a first bearing is sleeved on the first bearing seat and can be clamped in the front guide groove in a rolling manner, a second bearing seat is arranged at the other end of the second push rod and can be clamped in the rear guide groove in a rolling manner, and a second bearing is arranged on the second bearing seat;

the end parts of the third push rod and the fourth push rod are hinged with each other, the middle part of the third push rod is hinged with the middle part of the first push rod, the middle part of the fourth push rod is hinged with the middle part of the second push rod, and the other end of the fourth push rod is hinged with the bottom of the push disc;

the front connecting pipe is connected between the end parts of the two third push rods close to one side of the vehicle head, the eccentric seat is arranged on the front connecting pipe, the bottom end of the push-out oil cylinder is hinged to the top end of the fork foot mounting frame, and the telescopic end of the push-out oil cylinder is hinged to the eccentric seat;

the oil pushing-out oil way system comprises an oil pushing-out pipe, a first pushing-out steering valve and a second pushing-out steering valve, the first pushing-out steering valve and the second pushing-out steering valve are arranged on the intermediate assembly, and after the oil pushing-out pipe and the oil pushing-out pipe are connected with the first pushing-out multi-way control valve and the second pushing-out multi-way control valve in a compliant mode, the oil pushing-out pipe is connected with an oil inlet and an oil return port of the pushing-out oil cylinder respectively.

Furthermore, the oil pushing-out system further comprises a second guide wheel, the second guide wheel is arranged at the end of a telescopic shaft of the second lifting oil cylinder, and the lifting oil inlet pipe and the lifting oil return pipe between the first pushing-out multi-way control valve and the second pushing-out multi-way control valve bypass the second guide wheel.

The invention has the beneficial effects that:

the forklift system comprises an intermediate component; the device comprises a tilting device, a lifting device, a deviation device, a fork foot mounting frame, a pushing device, an operation assembly and a multi-way control valve group. For forking cargo.

The middle assembly is arranged in the front of the vehicle head, and the bottom end of the middle assembly is hinged with the vehicle head. The tilting device is arranged between the middle assembly and the vehicle head and used for driving the middle assembly to rotate; the lifting device is arranged on the middle assembly and can ascend or descend along the middle assembly, and the lifting device can ascend and descend twice. The offset device is arranged on the middle assembly and can be offset along the left side or the right side of the locomotive. The fork foot mounting bracket is arranged on the deviation device and is positioned on one side far away from the vehicle head, and the fork foot assembly is arranged on the fork foot mounting bracket. The pushing device is arranged on the fork leg mounting frame and can extend or retract along the fork leg assembly so as to push the goods on the fork leg assembly out. The operating assembly is arranged on the vehicle head.

The multi-path control valve group is arranged on the vehicle head, an oil inlet end and an oil return end of the multi-path control valve group are both connected with a hydraulic station of the vehicle head, and the multi-path control valve group comprises a tilting multi-path control valve, a lifting multi-path control valve, an offset multi-path control valve and a pushing multi-path control valve; the operation assembly is connected with the multi-path control valve, the lifting multi-path control valve, the deviation multi-path control valve and the pushing multi-path control valve, and the tilting multi-path control valve, the lifting multi-path control valve, the deviation multi-path control valve and the pushing multi-path control valve are respectively connected with the tilting device, the lifting device, the deviation device and the pushing device; the operation assembly can drive the fork foot assembly to lean forwards and backwards, or lift, or deflect or push the goods on the fork foot assembly out.

The forklift system can perform forward and backward tilting, lifting, offsetting and pushing actions in the transporting process, so that goods on the forklift can be quickly and safely stacked at any place in order, the efficiency is improved, and accidental damage to the goods is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

Fig. 1 is a schematic diagram of a forklift system according to an embodiment of the present invention;

FIG. 2 is a schematic view of an intermediate assembly of the forklift system shown in FIG. 1;

FIG. 3 is a schematic view of a tipping device of the fork lift system of FIG. 1;

FIG. 4 is a schematic view of a lift mechanism of the fork lift system of FIG. 1;

FIG. 5 is a schematic view of an offset device of the fork lift system of FIG. 1;

FIG. 6 is a schematic view of an offset mounting bracket of the forklift system of FIG. 1;

FIG. 7 is a schematic view of a kick-off device of the fork lift system of FIG. 1;

FIG. 8 is a schematic view of a kick-off assembly of the fork lift system of FIG. 1;

FIG. 9 is a rear view of the fork lift system of FIG. 1 after removal of the ejector;

reference numerals:

1. a headstock; 2. a fork foot mounting rack; 3. a fork foot assembly;

100. an intermediate component; 110. a side plate; 111. a first vertical guide groove; 120. a base plate;

200. an operating component; 210. a circular shaft; 220. an operating lever; 230. a sleeve; 240. a connecting pipe;

300. a multi-way control valve group; 310. a tilting multi-way control valve; 320. lifting a multi-way control valve; 330. offsetting a multi-way control valve; 340. pushing out the multi-way control valve;

400. a tilting device; 410. a main shaft; 420. a shaft sleeve; 430. a tilting oil cylinder; 440. a tilt oil path system;

500. a lifting device; 510. a first lifting mechanism; 511. a first lift cylinder; 512. a strip-shaped lifting plate; 520. a second lifting mechanism; 521. an oil cylinder mounting plate; 522. a second lift cylinder; 523. a chain guide wheel; 524. pulling the chain; 530. a lifting oil way system; 531. lifting the oil inlet pipe; 532. lifting an oil return pipe;

600. a biasing device; 610. an offset mounting bracket; 611. a deflection mounting plate; 612. a lateral plate; 613. an upper slide rail; 620. a double-head telescopic oil cylinder; 630. a connecting frame; 631. an upper chute; 640. a guide plate; 650. a first tubing guide pulley;

700. a push-out device; 710. a push-out assembly; 711. a front support column; 7111. a front guide groove; 712. a rear support column; 7121. a rear guide groove; 713. a push rod group; 7131. a first push rod; 7132. a second push rod; 7133. a third push rod; 7134. a fourth push rod; 7135. a first bearing housing; 714. a front connecting rod; 715. an eccentric seat; 720. pushing out the oil cylinder; 730. pushing the disc; 740. shock attenuation glue stick.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1 to 9, the present invention provides a forklift system, which includes a vehicle head 1, a fork foot mounting frame 2 and a fork foot assembly 3. The fork leg assembly 3 is arranged on the fork leg mounting frame 2. The forklift system also includes an intermediate assembly 100, an operating assembly 200, a manifold 300, a tipping device 400, a lift device 500, a biasing device 600, and a push device 700. For forking cargo.

Referring to fig. 1 and 2, specifically, the middle assembly 100 is disposed at the front of the vehicle head 1, and the bottom end of the middle assembly 100 is hinged to the vehicle head 1. The tilting device 400 is used between the intermediate assembly 100 and the vehicle head 1 for driving the intermediate assembly 100 to rotate. The lifting device 500 is provided on the middle assembly 100 and can be lifted up or down along the middle assembly 100, and the lifting device 500 can be lifted up and down twice. The offset device 600 is provided on the intermediate assembly 100 and can be offset along the left or right side of the vehicle head 1. Fork foot mounting bracket 2 sets up on biasing means 600 to be located the one side of keeping away from locomotive 1, fork foot subassembly 3 sets up on fork foot mounting bracket 2. The pushing device 700 is disposed on the fork leg mounting frame 2 and can be extended or retracted along the fork leg assembly 3 to push the goods on the fork leg assembly 3. The operating assembly 200 is provided on the vehicle head 1.

In this embodiment, the multiple control valve set 300 is disposed on the vehicle head 1, and both the oil inlet end and the oil return end of the multiple control valve set 300 are connected to the hydraulic station of the vehicle head 1. The manifold 300 includes a tilt manifold 310, a lift manifold 320, a bias manifold 330, and a push manifold 340. The operating assembly 200 is connected to a pitch multiplex control valve 310, a lift multiplex control valve 320, a bias multiplex control valve 330, and a push multiplex control valve 340. The pitch multi-way control valve 310, the lift multi-way control valve 320, the shift multi-way control valve 330, and the push multi-way control valve 340 are connected to the pitch device 400, the lift device 500, the shift device 600, and the push device 700, respectively. By operating the operating assembly 200, the fork leg assembly 3 can be driven to pitch forward and back, or to lift, or to offset or push the cargo on the fork leg assembly 3.

With continued reference to fig. 1 and 2, in the present embodiment, the operation assembly 200 includes a circular shaft 210, an operation rod 220, a sleeve 230 and a connection tube 240. The round shaft 210 is connected to the head 1, and the push-out lever 220 is an L-shaped pipe. The number of the operating rods 220 is four, a sleeve 230 is arranged at the end of each push-out operating rod 220, a connecting pipe 240 is connected to each sleeve 230, the sleeve 230 can be rotatably sleeved on the round shaft 210, one end of each connecting pipe 240 is hinged to the sleeve 230, and the other end of each connecting pipe 240 is respectively connected with the tilting multi-way control valve 310, the lifting multi-way control valve 320, the offset multi-way control valve 330 and the push-out multi-way control valve 340.

When the fork foot assembly 3 needs to be tilted forwards and backwards, or lifted, or deflected, or the goods on the fork foot assembly 3 needs to be pushed out, the fork foot assembly 3 can be tilted forwards and backwards, or lifted, or deflected, or the goods on the fork foot assembly 3 can be pushed out only by operating the operating rod 220 on the corresponding multi-way control valve.

Referring to fig. 3, in the present embodiment, the tilting apparatus 400 includes a main shaft 410, a shaft sleeve 420, a tilting cylinder 430, and a tilting oil system 440. The main shaft 410 is arranged at the bottom end of the vehicle head 1 along the left and right sides of the vehicle head 1. The shaft sleeve 420 is disposed on the intermediate assembly 100 and rotatably fitted over the main shaft 410. One end of the tilting oil cylinder 430 is hinged with the headstock 1, and the telescopic shaft of the tilting oil cylinder 430 is hinged with the middle part of the middle assembly 100.

The tilt oil path system 440 includes a tilt oil inlet pipe, a tilt oil return pipe, and a tilt steering valve. The tilt steering valve is disposed on the intermediate assembly 100. One end of the tilting oil inlet pipe and one end of the tilting oil return pipe are respectively connected with the tilting multi-way control valve 310 and then respectively connected with an oil inlet and an oil return port of the tilting oil cylinder 430.

When it is desired to unload the cargo from the fork legs, the operating lever 220 connected to the tilt multi-way control valve 310 is operated, and when the operating lever 220 is pushed forward, pressurized oil enters the tilt cylinder 430 through the tilt oil system 440. The telescopic shaft of the tilting cylinder 430 extends to drive the intermediate assembly 100 to rotate around the main shaft 410 in a direction away from the vehicle head 1, so that the tail end of the fork foot assembly 3 is inclined downwards, which is beneficial to unloading goods. When the operating rod 220 can be pulled backwards during the operation of the forklift, the pressure oil of the tilting oil cylinder 430 flows out through the tilting oil path system 440, the telescopic shaft of the tilting oil cylinder 430 retracts, the middle assembly 100 is driven to rotate around the main shaft 410 to the direction close to the vehicle head 1, the tail end of the fork foot assembly 3 tilts upwards, and then the goods can be placed to slide out from the front end of the fork foot assembly 3.

Referring to fig. 4 and 9, the lifting device 500 includes a first lifting mechanism 510, a second lifting mechanism 520, and a lifting oil system 530.

The first-time lifting mechanism 510 includes a first lift cylinder 511 and a bar-shaped lift plate 512. The intermediate assembly 100 includes side plates 110 and a bottom plate 120. The two side plates 110 are arranged oppositely along the left and right direction of the vehicle head 1. The bottom plate 120 connects the two side plates 110. The opposite surfaces of the two side plates 110 are provided with first vertical guide grooves 111. There are two strip-shaped lifting plates 512. The two strip-shaped lifting plates 512 are slidably clamped with the two first vertical guide grooves 111 respectively. The first lifting cylinder 511 is vertically arranged on the bottom plate 120, and an expansion rod of the first lifting cylinder 511 is connected with the top of the strip-shaped lifting plate 512.

The second elevating mechanism 520 includes a cylinder mounting plate 521, a second elevating cylinder 522, a chain guide 523 and a pulling chain 524, the cylinder mounting plate 521 is connected between the two strip-shaped elevating plates 512 and is located at one side close to the ground. The second lift cylinder 522 is vertically installed on the cylinder mounting plate 521, the chain guide wheel 523 is arranged at an end of a telescopic shaft of the second lift cylinder 522, one end of the pulling chain 524 is installed on the cylinder mounting plate 521, and the other end of the pulling chain bypasses the chain guide wheel 523 and then is connected with the deviation device 600.

The lifting oil circuit system 530 comprises a lifting oil inlet pipe 531, a lifting oil return pipe 532 and a lifting steering valve. The lift diverter valve is disposed on the intermediate assembly 100. The first sections of the lifting oil inlet pipe 531 and the lifting oil return pipe 532 are respectively connected with the lifting multi-way control valve 320 and then connected with the lifting steering valve, two branch pipes are respectively arranged at the tail ends of the lifting oil inlet pipe 531 and the lifting oil return pipe 532, and the two branch pipes at the tail ends of the lifting oil inlet pipe 531 and the lifting oil return pipe 532 are respectively connected with the oil inlets and the oil return openings of the first lifting oil cylinder 511 and the second lifting oil cylinder 522.

When the goods need to be carried, the operating rod 220 connected with the tilting multi-way control valve 310 can be pushed slightly, the operating rod 220 enters a first-gear position, and the pressure oil enters the second lifting oil cylinder 522 through the lifting oil return pipe 532. The telescopic shaft of the second lift cylinder 522 is extended to pull the chain 524 to slide on the chain guide wheel 523 and drive the whole shifting device 600 to ascend, so as to drive the fork leg assembly 3 to ascend. The first rise is completed. When unloading is needed, the operating rod 220 is pulled backwards, and the pressure oil flows out through the lifting oil return pipe 532, so that the whole deviation device 600 can be driven to descend, and the fork foot assembly 3 is driven to ascend. Then unloading can be carried out

When the lifting height is high, if cargo needs to be forked into a boxcar or a container, the first lifting is performed, the operating rod 220 is pushed forward again, the operating rod 220 enters the second-gear position, pressure oil enters the first lifting oil cylinder 511 through the lifting oil return pipe 532, the pin assembly is pulled to be lifted by the pulling chain 524, and the second lifting is completed.

After the second lifting is completed, when the fork leg assembly 3 needs to be lowered, the operating rod 220 needs to be pushed backwards, the pressure oil in the first lifting oil cylinder 511 firstly flows out through the lifting oil return pipe 532, and the goods are lowered for the first time; then, the operating rod 220 is pulled further backward, the pressure oil in the second lift cylinder 522 flows out through the lift return pipe 532, and the cargo descends for the second time.

Adopt this kind of mode, can transport higher position with the goods, simultaneously, adopt twice lift, can reduce the stroke height of the lift of whole device, then the stationarity of multiplicable lift can also reduce the space that spare part occupy, further makes things convenient for fork truck's storage.

As a preferred embodiment, the lifting device 500 further comprises a first rolling bearing. First antifriction bearing sets up in the outside of bar lifter plate 512, and bar lifter plate 512 passes through first antifriction bearing and the lateral wall joint and the rolling connection of first vertical guide way 111. By changing the sliding connection of the strip-shaped lifting plate 512 and the first vertical guide groove 111 into the rolling connection through the first rolling bearing, friction during the ascending or descending process can be reduced.

Referring to fig. 5, 6 and 9, in the present embodiment, the offset device 600 includes an offset mounting frame 610, a dual-head telescopic cylinder 620, a connecting frame 630 and an offset oil path system. Offset mounting bracket 610 includes an offset mounting plate 611 and a lateral plate 612. The offset mounting plate 611 is arranged parallel to the intermediate assembly 100 and on the side remote from the vehicle head 1, and the pull chain 524 is connected to the offset mounting plate 611. When the lifting device is lifted, the pulling chain 524 pulls the offset mounting plate 611, so that the whole offset device 600 can be lifted. The two lateral plates 612 are arranged on the offset mounting frame 610 at intervals, and the two strip-shaped lifting plates 512 are provided with second vertical guide grooves 513 on the opposite inner side surfaces. The two lateral plates 612 are slidably engaged in the second vertical guide grooves 513, respectively.

Similarly, in an embodiment, a bearing may be installed on an outer wall of the lateral plate 612, and the lateral plate 612 and the second vertical guide groove are connected through the bearing, so that friction between the lateral plate 612 and an inner wall of the second vertical guide groove 513 can be reduced.

The offset mounting plate 611 is provided at the top thereof with an upper rail 613 extending in the left-right direction of the forklift. The top end of the connecting frame 630 is provided with an upper chute 631, the upper chute 631 is reversely buckled on the upper slide rail 613 and can slide along the upper slide rail 613, the double-head telescopic oil cylinder 620 is arranged on the offset mounting plate 611, telescopic rods are arranged at two ends of the double-head telescopic oil cylinder 620, the telescopic rods at two ends of the double-head telescopic oil cylinder 620 can extend and retract along the left and right directions of the forklift, the telescopic rods at two ends of the two double-head telescopic oil cylinder 620 are respectively connected with the left side and the right side of the connecting frame 630, and the fork foot mounting frame 2 is arranged on the connecting frame 630 and is positioned at one side far away from the vehicle head 1;

the offset oil way system comprises an offset oil inlet pipe, an offset oil return pipe and an offset steering valve. The offset steering valve is arranged on the middle assembly 100, and one end of the offset oil inlet pipe and one end of the offset oil return pipe are respectively connected with the offset multi-path control valve 330, and then are respectively connected with the oil inlet and the oil return port of the offset oil cylinder after being connected with the offset steering valve.

As a preferred embodiment, biasing apparatus 600 further includes a first tubing guide 650. A first oil pipe guide wheel 650 is provided at an end of the telescopic shaft of the second lift cylinder 522, and the offset oil inlet pipe and the offset oil return pipe are connected to the offset multi-way control valve while bypassing the first oil pipe guide wheel 650. The offset oil inlet pipe and the offset oil return pipe can be guided by the first oil pipe guide wheel 650, so that the offset oil inlet pipe and the offset oil return pipe are prevented from being jumbled in the ascending or descending process.

When the transport goods need control the skew, through promoting the action bars 220 who is connected with skew multiple control valve 330, rethread skew oil piping system, to input pressure oil in the flexible hydro-cylinder 620 of double-end, then can drive the flexible hydro-cylinder 620 left side of double-end or the telescopic link extension on the right to drive whole link 630 and move left or right, and then drive fork foot mounting bracket 2 and fork foot subassembly 3 and move left or right, then can place the destination with the goods. Then can be fast, safe with the orderly pile of goods on the fork truck in the carriage, and then raise the efficiency and reduce the goods accidental injury.

Referring to fig. 7 and 8, in the present embodiment, the pushing device 700 includes a pushing cylinder 720, a pushing assembly 710, a pushing plate 730, and a pushing oil path system. One end of the push-out component 710 is connected to the fork foot mounting frame 2 and can extend or shorten, the push disc 730 is connected to the other end of the push-out component 710, the push-out oil cylinder 720 is hinged to the fork foot mounting frame 2, and the telescopic rod of the push-out oil cylinder 720 is hinged to the push-out component 710;

the kick-out assembly 710 includes a front support post 711, a rear support post 712, a ram set 713, a front connecting rod 714, and an eccentric 715. The two front supporting columns 711 are vertically spaced and oppositely arranged on the fork foot mounting rack 2, and front guide grooves 7111 are vertically and oppositely formed on the opposite surfaces of the two front supporting columns 711. The rear support columns 712 are two and spaced apart from the front support columns 711, the push plate 730 is connected between the two rear support columns 712, and the rear guide grooves 7121 are vertically and oppositely formed on the opposite surfaces of the two rear support columns 712. There are two sets of pusher bar sets 713, the two sets of pusher bar sets 713 being spaced in parallel between the front support 711 and the rear support 712.

When the pushing-out component 710 is not used at ordinary times, the pushing-out component 710 is in a contracted state, when goods on the fork leg component 3 need to be pushed out, the pushing-out oil path system 740 inputs pressure oil into the pushing-out oil cylinder 720 by pushing the operating rod 220 connected with the pushing-out multi-path control valve 340, and then the telescopic end of the pushing-out oil cylinder 720 can be driven to extend, so that the whole pushing-out component 710 is driven to push the pushing disc 730 to advance, and the goods are pushed out.

The push rod group 713 includes a first push rod 7131, a second push rod 7132, a third push rod 7133, and a fourth push rod 7134. The ends of the first push rod 7131 and the second push rod 7132 are hinged to each other, and the other end of the first push rod 7131 is provided with a first bearing block 7135. The first bearing block 7135 is sleeved with a first bearing. The first bearing is rotatably engaged with the front guide groove 7111. The other end of the second push rod 7132 is provided with a second bearing block on which a second bearing is arranged. The second bearing is rotatably engaged in the rear guide groove 7121.

The ends of the third and

fourth push rods

7133 and 7134 are hinged to each other, and the middle of the third push rod 7133 is hinged to the middle of the first push rod 7131. The middle part of the fourth push rod 7134 is hinged with the middle part of the second push rod 7132, and the other end of the fourth push rod 7134 is hinged with the bottom of the push disc 730.

The front connecting pipe 240 is connected between the end parts of the two third push rods 7133 close to the vehicle head 1 side, the eccentric seat 715 is arranged on the front connecting pipe 240, the bottom end of the push-out oil cylinder 720 is hinged to the top end of the fork foot mounting frame 2, and the telescopic end of the push-out oil cylinder 720 is hinged to the eccentric seat 715;

the push-out oil way system comprises a push-out oil inlet pipe, a push-out oil return pipe, a first push-out steering valve and a second push-out steering valve, wherein the first push-out steering valve and the second push-out steering valve are arranged on the middle assembly 100, and one end of the push-out oil inlet pipe and one end of the push-out oil return pipe are connected with the first push-out multi-way control valve 340 and the second push-out multi-way control valve 340 along the same direction and are connected with an oil inlet and an oil return port of the push-out oil cylinder 720 respectively.

When oil is fed into the push-out oil cylinder 720, the telescopic end of the push-out oil cylinder 720 extends to push the eccentric seat 715, the eccentric seat 715 drives the front connecting pipe 240 to rotate, and simultaneously drives the second bearing seat to slide downwards along the front guide groove 7111, so as to push the first push rod 7131, the second push rod 7132, the third push rod 7133 and the fourth push rod 7134 to expand and push, further push the second bearing seat to slide along the rear guide groove 7121, further push the push disc 730 to move in the direction far away from the forklift head 1, and conversely, when the push-out oil cylinder 720 returns oil, the telescopic end of the push-out oil cylinder 720 is retracted, so that the push disc 730 can be driven to move in the direction close to the forklift head 1. The pushing plate 730 is in a contracted state, and then fork can be carried out.

In addition, in practical implementation, the shock absorbing glue bars 740 are disposed on the side walls of the front supporting column 711 facing the rear supporting column 712, and when the push rod set 713 is in the contracted state, the shock absorbing glue bars 740 can abut against the side walls of the rear supporting column 712. The shock-absorbing rubber rod 740 is generally made of rubber, and when the push rod set 713 contracts, the shock-absorbing rubber rod 740 can prevent the front support column 711 and the rear support column 712 from being rigidly abutted against each other, so that the parts are damaged.

According to the forklift system, the fork foot component 3 can be driven to move forward and backward, or lift, or shift or push out the goods on the fork foot component 3 by operating the corresponding operating rod 220 in the process of forking and transporting the goods, so that the goods on the forklift can be quickly and safely stacked at any place in order, the efficiency is improved, and the accidental injury of the goods is reduced.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. The utility model provides a fork truck system, includes locomotive, fork foot mounting bracket and fork foot subassembly, the fork foot subassembly sets up on the fork foot mounting bracket, its characterized in that still includes:

the operating assembly is arranged on the vehicle head; and

2. The lift truck system of claim 1, wherein the operating assembly includes a round shaft, an operating lever, a sleeve, and a connecting tube; the circle hub connection be in the locomotive is overhead, it is the L venturi tube to release the action bars, the action bars has four, every the tip of releasing the action bars is provided with one the sleeve, every be connected with one on the sleeve the connecting pipe, the sleeve can rotate the cover and establish the circle is epaxial, connecting pipe one end with the sleeve is articulated, in addition one end respectively with incline and face upward the multiple control valve the lift multiple control valve the skew multiple control valve with it connects to release the multiple control valve.

3. The lift truck system of claim 1, wherein the tipping device includes a main shaft, a bushing, a tipping cylinder, and a tipping oil system; the main shaft is arranged at the bottom end of the headstock along the left side and the right side of the headstock, the shaft sleeve is arranged on the middle assembly and can be sleeved on the main shaft in a rotating manner, one end of the tilting oil cylinder is hinged with the headstock, and a telescopic shaft of the tilting oil cylinder is hinged with the middle part of the middle assembly;

4. The forklift system of claim 1, wherein the lifting device comprises a primary lifting mechanism, a secondary lifting mechanism and a lifting oil circuit system;

5. The forklift system according to claim 4, wherein the first-time lifting mechanism further comprises a first rolling bearing, the first rolling bearing is arranged on the outer side of the strip-shaped lifting plate, and the strip-shaped lifting plate is clamped and in rolling connection with the side wall of the first vertical guide groove through the first rolling bearing.

6. The lift truck system of claim 4, wherein the offset device includes an offset mounting bracket, a double-headed telescopic cylinder, a link bracket and an offset oil system; the offset mounting frame comprises an offset mounting plate and two side plates, the offset mounting plate is arranged in parallel with the middle assembly and is positioned on one side far away from the vehicle head, the pulling chain is connected with the offset mounting plate, the two side plates are arranged on the offset mounting frame at intervals, second vertical guide grooves are formed in the opposite inner side surfaces of the two strip-shaped lifting plates, and the two side plates are respectively clamped in the second vertical guide grooves in a sliding manner;

7. The lift truck system of claim 6, wherein said offset means further comprises two guide tube plates vertically spaced apart from each other on said intermediate assembly, opposite surfaces of said guide tube plates each having a slot, first ends of said offset inlet and return oil tubes being bent to engage in said slots in a U-shaped configuration.

8. The lift truck system of claim 6, wherein the offset device further comprises a first oil pipe guide wheel disposed at an end of the extension shaft of the second lift cylinder, the offset inlet pipe and the offset return pipe being connected to the offset multi-way control valve while bypassing through the first oil pipe guide wheel.

9. The lift truck system of claim 4, wherein the kick-out device includes a kick-out cylinder, a kick-out assembly, a kick-out plate, and a kick-out oil system; one end of the push-out assembly is connected to the fork foot mounting frame and can be extended or shortened, the push disc is connected to the other end of the push-out assembly, the push-out oil cylinder is hinged to the fork foot mounting frame, and a telescopic rod of the push-out oil cylinder is hinged to the push-out assembly;

10. The forklift system according to claim 9, wherein the oil push-out path system further includes a second guide wheel provided at an end of a telescopic shaft of the second lift cylinder, and the lift oil inlet pipe and the lift oil return pipe between the first push-out multi-way control valve and the second push-out multi-way control valve bypass the second guide wheel.