CN111056501A - Cut fork antedisplacement formula fork truck - Google Patents
Cut fork antedisplacement formula fork truck Download PDFInfo
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- CN111056501A CN111056501A CN202010028715.3A CN202010028715A CN111056501A CN 111056501 A CN111056501 A CN 111056501A CN 202010028715 A CN202010028715 A CN 202010028715A CN 111056501 A CN111056501 A CN 111056501A
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- Prior art keywords
- valve group
- fork
- assembly
- frame assembly
- controller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/14—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
- B66F9/146—Side shift, i.e. both forks move together sideways relative to fork support
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/22—Hydraulic devices or systems
Abstract
The invention relates to the field of forklifts, in particular to a scissor-fork forward-moving type forklift, which comprises a forklift body, a portal frame and a top protection frame part, wherein the portal frame is arranged on the forklift body; the automobile body part comprises a frame assembly, a driving unit is arranged on the left rear side of the frame assembly, a standing cab is arranged on the right rear side of the frame assembly, an operation control unit is arranged above the front side of the standing cab, a battery unit is arranged below the operation control unit, and a hydraulic station is arranged above the driving unit; the gantry part comprises a fork and a gantry structure, the gantry structure is provided with a scissor structure, a first controller and a second controller are arranged in the frame assembly, and the control unit is in electric signal connection with the first controller and the second controller; a main valve group is also arranged in the frame assembly, and a first controller controls a hydraulic station to supply hydraulic pressure to the main valve group; the shear fork structure is provided with a forward and backward movement and side movement valve group, the second controller controls the hydraulic station to supply hydraulic pressure to the forward and backward movement, inclination and elevation and side movement valve group, and the problems that oil pipes are multiple, oil paths are long, difficulty exists in assembly and maintenance, and the service life is influenced by uneven stress of the bearing wheels when a forklift corresponds to an uneven road are solved.
Description
Technical Field
The invention relates to the technical field of forklifts, in particular to a scissor-fork forward-moving type forklift.
Background
Fork trucks are industrial handling vehicles, and refer to various wheeled handling vehicles that perform handling, stacking, and short-distance transport operations on piece pallet goods. It is commonly used for transportation of large warehouse goods, and is usually driven by an oil-burning engine or a battery. The tray can be 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 carry out loading, unloading and carrying operations of tray goods, and is necessary equipment in tray transportation and container transportation.
The Chinese patent with the application number of CN201810714936.9 discloses a forward fork truck portal frame shifting device, wherein a motor drives a folding frame to stretch, so that the folding frame drives a fork to move forward and backward, the goods are conveniently loaded, and the fork truck does not need to move integrally; the flexible stability of execution slip, the flexibility is stronger, is convenient for operate, and the cost of manufacture is lower, and fork truck dead weight can reduce.
The technical scheme has the following problems: the telescopic structure only has a back-and-forth movement function, and is driven by a motor, the arrangement of a motor circuit is troublesome, in addition, if other actions such as transverse lateral movement and the like are added, a mechanical multi-way valve or a relay is required to be additionally arranged to be matched with an electromagnetic valve for control, the multi-way valve is limited by position and rigid in assembly, so that a plurality of limitations are added to the appearance design of the whole vehicle, the multi-way valve is provided with more oil pipes, and the assembly and the maintenance are difficult to a certain degree; the relay cooperates the solenoid valve control wiring complicated, and is comparatively troublesome to more complicated oil circuit control, and the easy atress of bearing wheel is inhomogeneous when fork truck in uneven inside operation in addition.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a scissor-fork forward-moving forklift, which is characterized in that two controllers are arranged to respectively control the lifting action and the posture adjustment action of the forklift, a controller module is used for replacing a plurality of relays to be matched with an electromagnetic valve for control, and front and rear bearing wheels can swing in a small amplitude, so that the problems that in the prior art, the number of oil pipes is large, oil circuit lines are long, assembly and maintenance are difficult, the wiring of the relays to be matched with the electromagnetic valve is complex, the control of complex oil circuits is troublesome, and the service life of the bearing wheels is influenced due to uneven stress when the forklift is used on uneven road surfaces are solved.
In order to achieve the purpose, the invention provides the following technical scheme:
a scissor-fork forward-moving forklift comprises a body part, a portal part arranged on the front side of the body part and a top protection frame part arranged on the upper side of the body part; the automobile body part comprises a frame assembly, a driving unit is arranged on the left rear side of the frame assembly, a standing cab is arranged on the right rear side of the frame assembly, an operation control unit is arranged above the front side of the standing cab, a battery unit is arranged below the operation control unit, and a hydraulic station is arranged above the driving unit; the frame assembly comprises a frame part and a frame part, wherein the frame part comprises a fork and a frame structure, the frame structure is provided with a scissor structure capable of moving up and down along the frame structure, the fork is arranged at the front end of the scissor structure, a first controller and a second controller connected with a hydraulic station are further arranged at positions between an operation unit and a battery unit in the frame assembly, and the operation unit is in electric signal connection with the first controller and the second controller;
the frame assembly is also internally provided with a main valve group for controlling the scissor structure and the whole fork to lift, and the first controller controls the hydraulic station to start and provide hydraulic pressure for the main valve group; the fork structure is provided with a front-back moving valve group for controlling the fork structure to open or close at a position close to the portal structure, a tilting valve group for controlling the fork to tilt and a side-shifting valve group for controlling the fork to shift laterally are arranged at a position close to the fork, and the second controller controls the hydraulic station to start to provide hydraulic pressure for the front-back moving valve group, the tilting valve group and the side-shifting valve group.
As an improvement, the main valve group is connected with a lifting middle oil cylinder and a lifting side oil cylinder, one side of the scissor structure close to the frame assembly is provided with a sliding frame, the sliding frame is fixed on an inner gantry of the gantry structure, the scissor structure slides up and down along the inner gantry of the gantry structure under the driving of the lifting middle oil cylinder through the sliding frame, and the lifting side oil cylinder is used for driving the inner gantry of the gantry structure and the scissor structure to integrally slide up and down along an outer fixed gantry of the gantry structure.
As an improvement, the forward and backward moving valve group is connected with a forward and backward moving oil cylinder, one end of the forward and backward moving oil cylinder is rotatably connected with the sliding frame, and the other end of the forward and backward moving oil cylinder is rotatably connected with an inner fork plate of the scissor fork structure.
As an improvement, the tilting valve group and the side shifting valve group are arranged integrally, the tilting valve group is connected with a tilting oil cylinder, the side shifting valve group is connected with a side shifting oil cylinder, the forks can be arranged to tilt forwards or backwards under the action of the tilting oil cylinder in a swinging mode, the side shifting oil cylinder is a bidirectional oil cylinder, and two ends of the bidirectional oil cylinder are connected with the left fork and the right fork respectively to drive the left fork and the right fork to move leftwards or rightwards synchronously.
As an improvement, the main valve group and the forward and backward moving valve group, the inclining valve group and the side moving valve group are connected through rubber pipes, a pulley block is arranged on the scissor fork structure, and the rubber pipes between the forward and backward moving valve group, the inclining valve group and the side moving valve group bypass the pulley block.
As a refinement, the drive unit is in signal connection with a second controller.
As an improvement, the bicycle frame assembly further comprises a supporting leg component and a bearing wheel component which are fixed on the bicycle frame assembly, wherein an installation opening is formed at the front end part of the supporting leg component, the bearing wheel component is arranged in the installation opening, a supporting block is fixedly arranged at the middle position of the installation opening, and supporting shafts are arranged at two ends of the supporting block;
the bearing wheel assembly comprises a front wheel unit and a rear wheel unit which are respectively arranged on the front side and the rear side of the supporting block, and the front wheel unit and the rear wheel unit are arranged in a swinging mode by taking the supporting shaft on the supporting block as a fulcrum.
As an improvement, the front wheel unit and the rear wheel unit respectively comprise a supporting piece, a fixed shaft fixed on the supporting piece and a pulley rotatably arranged on the fixed shaft; the utility model discloses a support piece, including installation opening, back shaft, support piece, mounting groove, support piece, mounting shaft, support piece, mounting groove, mounting opening's both sides edge is opened all and is equipped with the mounting groove, the back shaft extends to in the mounting groove, support piece sets up in the mounting groove.
As an improvement, the supporting piece comprises a detachable and spliced yoke plate, and mounting holes for the fixed shaft to pass through are formed in two end parts of the upper yoke plate; a limiting groove is formed in the outer side face of the connecting plate along the length direction of the connecting plate, a limiting part is arranged on the fixing shaft, and the end part of the limiting part extends into the limiting groove.
As an improvement, the limiting part is a limiting pin, a pin hole is formed in the end of the fixed shaft, and the limiting part is detachably inserted into the pin hole.
As a further improvement, the driving unit comprises a driving wheel assembly and an auxiliary wheel assembly, a balance suspension is connected between the driving wheel assembly and the auxiliary wheel assembly, the balance suspension comprises a right-angle crank and a lever, a horizontal section of the right-angle crank is used for mounting the driving wheel assembly, an ear plate is arranged at a position, close to the vertical section, of the horizontal section, the end of the ear plate is pivoted with an upper swing arm, the other end of the upper swing arm is pivoted on the frame assembly, and a first spring is arranged between the other end of the horizontal section and the frame assembly; one end of the lever is pivoted with the lower end of the vertical section of the right-angle crank, and the middle fulcrum of the lever is supported and fixed on the frame assembly; and a wheel carrier bottom plate is fixed at the other end of the lever and used for mounting an auxiliary wheel assembly, and a second spring is connected between the wheel carrier bottom plate and the frame assembly.
Here, driving wheel subassembly and supplementary wheel subassembly are installed respectively on the horizontal segment of right angle crank and obtuse angle crank, according to plane link mechanism's motion principle for fork truck can adapt to the uneven road surface automatically, and especially when the action wheel crossed the pit, the action wheel can descend automatically and contact ground and keep the power that gos forward, wherein installs first spring of shock attenuation part and second spring additional, can absorb and cushion the impact shock of the in-process of traveling, improves travelling comfort and life.
The invention has the beneficial effects that:
1. the two controllers are arranged to respectively control the lifting action and the posture adjustment action of the forklift, on one hand, programs can be written into the controllers at will according to user requirements, the wiring mode is flexible and various, simplicity and clarity are realized, the controller module is utilized to replace a plurality of relays to be matched with the electromagnetic valve for control, and compared with the existing mechanical multi-way valve control and relay electromagnetic valve control modes, the multi-way valve overcomes the defects that the mechanical multi-way valve is used for oil circuit switching and control, the multi-way valve is limited by position and rigid in assembly, so that a plurality of limitations are added to the appearance design of the whole forklift, oil pipes are arranged on the multi-way valve, and certain difficulty is caused in; the relay is matched with the electromagnetic valve to control complex wiring, and for the problem that complex oil circuit control is troublesome, the electromagnetic valve can be distributed at different parts of the vehicle body according to different vehicle types, so that convenience is provided for diversified design of the whole vehicle, meanwhile, the control system is stable, the control modes are diverse, and a good solution is provided for switching of an oil circuit system; on the other hand, the lifting action and the posture adjusting action are distributed to the two independent controllers, and the hydraulic station is connected between the two controllers, so that the path of an oil circuit is further shortened, the structure is more compact, and the hydraulic station is simple and has better stability.
2. According to the forklift, the main valve block, the forward and backward moving valve group, the tilting valve group and the side moving valve group are respectively arranged at each part of the forklift, each valve group is arranged near the corresponding action part and the action oil cylinder, so that the stroke of an oil control path is shortened, the action is more efficient, the valve groups are only connected with each other through two general rubber pipes in an oil path manner, each action unit is prevented from being connected with a hydraulic station through one rubber pipe, and the action units are connected with the rubber pipes in a long-distance series manner, so that the connecting lines of the oil path rubber pipes are disordered.
3. In the invention, the supporting blocks with the supporting shafts on two sides are arranged in the middle of the mounting opening, and the supporting pieces for mounting the pulley fixing shafts are arranged on the supporting shafts in a rotatable mode, so that the pulleys of the front wheel unit and the pulleys on the rear wheel unit can rotate around the supporting shafts in a small range in the use process, the heights of the front and rear wheels can be automatically adjusted along with the road surface when the front and rear wheels correspond to uneven road surfaces, the problem that the shaft of the bearing wheel is easily damaged due to the fact that one wheel supports the other wheel to be suspended when the existing bearing wheel meets the uneven road surface is avoided, and the service life of the bearing wheel is prolonged.
4. According to the invention, the mounting grooves are formed in the two side edges of the mounting opening, the supporting piece is mounted in the mounting groove, the limiting groove is formed in the outer side surface of the supporting piece, namely the connecting plate, along the length direction of the supporting piece, and the limiting piece is detachably mounted on the fixed shaft in a matched manner, so that the whole structure is simple and ingenious, the mounting and dismounting are convenient, and the maintenance is convenient.
In conclusion, the invention has the advantages of stable control, multiple control modes, compact structure, low cost, reasonable layout and the like; is particularly suitable for the technical field of forklifts.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a scissor reach truck;
FIG. 2 is a schematic view of a mast structure and a fork portion;
FIG. 3 is a schematic view of a scissors configuration;
FIG. 4 is a schematic view of the mounting positions of the forward and backward moving valve block, the tilting valve block and the side moving valve block;
FIG. 5 is a schematic structural view of a rubber hose and a pulley block;
FIG. 6 is a schematic view of the interior of the frame assembly;
FIG. 7 is a schematic structural view of a leg assembly and a load wheel assembly;
FIG. 8 is a schematic view of the mounting structure of the yoke plate;
FIG. 9 is a partial schematic structural view of the leg assembly;
FIG. 10 is a schematic view of the structure of the yoke plate;
FIG. 11 is a schematic structural diagram of a position limiting member;
fig. 12 is a schematic structural view of a scissor-type reach truck steering unit;
FIG. 13 is a schematic structural diagram of a driving unit;
FIG. 14 is a schematic structural view of a counterbalanced suspension;
fig. 15 is a schematic view of a bell crank and lever configuration.
Detailed Description
The technical scheme in the embodiment of the invention is clearly and completely explained by combining the attached drawings.
Example one
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1 to 6, and 12 to 15, a scissors-type reach truck includes a vehicle body portion 1a, a mast portion 2a provided on a front side of the vehicle body portion 1a, and a roof rack portion 3a provided on an upper side of the vehicle body portion 1 a; the vehicle body part 1a comprises a vehicle frame assembly 1, a driving unit 1b is arranged on the left rear side of the vehicle frame assembly 1, a standing cab 2b is arranged on the right rear side of the vehicle frame assembly 1, a control unit 3b is arranged above the front side of the standing cab 2b, a battery unit 4b is arranged below the control unit 3b, and a hydraulic station 6 is arranged above the driving unit 1 b; the forklift truck is characterized in that a first controller 7 and a second controller 8 which are connected with a hydraulic station 6 are further arranged at positions between an operation control unit 3b and a battery unit 4b in the truck frame assembly 1, and the operation control unit 3b is in electric signal connection with the first controller 7 and the second controller 8;
the frame assembly 1 is also internally provided with a main valve group 10 for controlling the overall lifting of the scissor structure 5 and the fork 2, and the first controller 7 controls the hydraulic station 6 to start to provide hydraulic pressure for the main valve group 10; the front and back moving valve group 20 for controlling the scissor structure 5 to open or close is arranged at the position, close to the portal structure 4, of the scissor structure 5, the tilting valve group 30 for controlling the fork 2 to tilt and the side moving valve group 40 for controlling the fork 2 to move laterally are arranged at the position, close to the fork 2, of the scissor structure 5, and the second controller 8 controls the hydraulic station 6 to start to provide hydraulic pressure for the front and back moving valve group 20, the tilting valve group 30 and the side moving valve group 40.
It is worth mentioning that the two controllers are arranged to respectively control the lifting action and the posture adjustment action of the forklift, on one hand, programs can be written into the controllers at will according to user requirements, the wiring mode is flexible and various, the operation is simple and clear, the controller module is utilized to replace a plurality of relays to be matched with the electromagnetic valve for control, and compared with the existing mechanical multi-way valve control and relay electromagnetic valve control modes, the multi-way valve overcomes the defects that the mechanical multi-way valve is limited by the position and rigid in assembly, so that a plurality of limitations are added to the appearance design of the whole forklift, a plurality of oil pipes are arranged on the multi-way valve, and certain difficulty is caused in assembly and maintenance; the relay is matched with the electromagnetic valve to control complex wiring, and for the problem that complex oil circuit control is troublesome, the electromagnetic valve can be distributed at different parts of the vehicle body according to different vehicle types, so that convenience is provided for diversified design of the whole vehicle, meanwhile, the control system is stable, the control modes are diverse, and a good solution is provided for switching of an oil circuit system; on the other hand, the lifting action and the posture adjusting action are distributed to the two independent controllers, and the hydraulic station is connected between the two controllers, so that the path of an oil circuit is further shortened, the structure is more compact, and the hydraulic station is simple and has better stability.
Further, the main valve group 10 is connected with a lifting middle oil cylinder 101 and a lifting side oil cylinder 102, one side of the scissor structure 5 close to the frame assembly 1 is provided with a sliding frame 51, the sliding frame 51 is fixed on an inner gantry of the gantry structure 4, the scissor structure 5 slides up and down along the inner gantry of the gantry structure 4 under the driving of the lifting middle oil cylinder 101 through the sliding frame 51, and the lifting side oil cylinder 102 is used for driving the inner gantry of the gantry structure 4 and the scissor structure 5 to integrally slide up and down along an outer fixed gantry of the gantry structure 4.
Further, the forward and backward movement valve group 20 is connected with a forward and backward movement oil cylinder 201, one end of the forward and backward movement oil cylinder 201 is rotatably connected with the sliding frame 51, and the other end thereof is rotatably connected with the inner fork plate 53 of the scissors structure 5.
Further, the valve bank 30 and the side valve bank 40 are arranged integrally, the valve bank 30 is connected with the tilting oil cylinder 301, the side valve bank 40 is connected with the side shifting oil cylinder 401, the forks 2 can be arranged to tilt forward or backward under the action of the tilting oil cylinder 301 in a swinging manner, the side shifting oil cylinder 401 is a two-way oil cylinder, two ends of the side shifting oil cylinder are respectively connected with the left fork 2 and the right fork 2, and the left fork 2 and the right fork 2 are driven to move left or right synchronously.
Further, the main valve group 10 and the forward and backward moving valve group 20, the tilting valve group 30 and the lateral moving valve group 40 are connected through rubber pipes 50, a pulley block 52 is arranged on the scissor structure 5, and the rubber pipes 50 between the forward and backward moving valve group 20, the tilting valve group 30 and the lateral moving valve group 40 bypass the pulley block 52.
Here, through with the main valve piece, move the valves backward and forward, incline the valves of pitching and side and move the valves and set up respectively in each position department of fork truck, each valves sets up near action part and the action hydro-cylinder that corresponds, control oil circuit stroke has been shortened, make the action more high-efficient, and only need carry out the oil circuit through two total rubber tubes between each valves and connect can, it all will be connected with the hydraulic pressure station through a rubber tube to have avoided every action unit, a plurality of action units just need establish the connection with rubber tube long distance cluster more, make oil circuit rubber tube interconnecting link in a jumble.
Further, the driving unit 1b is in signal connection with a second controller 8.
In addition, through going on being connected to same manipulation module with two controllers finally in this embodiment for fork truck's advance and retreat, go up and down and each gesture adjustment action all finally gathers same region and controls, makes to control convenient.
When the hydraulic lifting device works, an operator stands in the driving room 2b and sends an instruction electric signal through the control unit 3b, the control unit 3b sends an electric signal to the first controller 7, and the first controller 7 controls the hydraulic station 6 to start to provide hydraulic pressure for the main valve group 10, so that the gantry part 2a completes the upgrading action; the control unit 3b sends an electric signal to the second controller 8, the second controller 8 controls the hydraulic station 6 to start to provide hydraulic pressure for the forward and backward movement valve group 20, the tilting valve group 30 and the side movement valve group 40, the fork shearing structure 5 performs opening or closing actions to complete the forward and backward movement of the fork when a forward and backward movement instruction is sent, the fork performs tilting actions under the driving of the tilting oil cylinder 301 when a tilting instruction is sent, the fork performs side movement under the action of the side movement oil cylinder 401 when a side movement instruction is sent, and the distance between the two forks is adjusted.
Furthermore, the driving unit 1b includes a driving wheel component 31 and an auxiliary wheel component 32, a balance suspension 33 is connected between the driving wheel component 31 and the auxiliary wheel component 32, the balance suspension 33 includes a right-angle crank 331 and a lever 332, a horizontal section of the right-angle crank 331 is used for mounting the driving wheel component 31, an ear plate 333 is arranged at a position of the horizontal section close to the vertical section, an end of the ear plate 333 is pivotally connected with an upper swing arm 334, the other end of the upper swing arm 334 is pivotally connected to the frame assembly 1, and a first spring 335 is arranged between the other end of the horizontal section and the frame assembly 1; one end of the lever 332 is pivoted with the lower end of the vertical section of the right-angle crank 331, and the middle fulcrum 336 of the lever 332 is supported and fixed on the frame assembly 1; a wheel carrier base plate 337 is fixed to the other end of the lever 332, the wheel carrier base plate 337 is used for mounting the auxiliary wheel assembly 32, and a second spring 338 is connected between the wheel carrier base plate 337 and the frame assembly 1.
Here, driving wheel subassembly and supplementary wheel subassembly are installed respectively on the horizontal segment of right angle crank and obtuse angle crank, according to plane link mechanism's motion principle for fork truck can adapt to the uneven road surface automatically, and especially when the action wheel crossed the pit, the action wheel can descend automatically and contact ground and keep the power that gos forward, wherein installs first spring of shock attenuation part and second spring additional, can absorb and cushion the impact shock of the in-process of traveling, improves travelling comfort and life.
Example two
As shown in fig. 7 to 11, in which the same or corresponding components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience; the second embodiment is different from the first embodiment in that: further, the bicycle support frame assembly comprises a leg component 11 and a bearing wheel component 12 which are fixed on the bicycle frame assembly 1, wherein a mounting opening 111 is formed at the front end of the leg component 11, the bearing wheel component 12 is arranged in the mounting opening 111, a supporting block 112 is fixedly arranged in the middle of the mounting opening 111, and supporting shafts 114 are arranged at two ends of the supporting block 112;
the carrier wheel assembly 12 includes a front wheel unit 121 and a rear wheel unit 122 respectively disposed at the front and rear sides of the supporting block 112, and the front wheel unit 121 and the rear wheel unit 122 are swingably disposed with the supporting shaft 114 on the supporting block 112 as a fulcrum.
Further, each of the front wheel unit 121 and the rear wheel unit 122 includes a support 1211, a fixed shaft 1212 fixed to the support 1211, and a pulley 1213 rotatably disposed on the fixed shaft 1212; the two sides of the mounting opening 111 are both provided with mounting slots 113, the supporting shaft 114 extends into the mounting slots 113, and the supporting member 1211 is disposed in the mounting slots 113.
Further, the support 1211 includes a detachable coupling plate 100, and mounting holes 1001 for the fixing shaft 1212 to pass through are formed at both ends of the upper coupling plate 100; a limiting groove 1002 is formed in the outer side surface of the yoke plate 100 along the length direction thereof, a limiting member 200 is disposed on the fixing shaft 1212, and the end of the limiting member 200 extends into the limiting groove 1002.
Furthermore, the limiting member 200 is configured as a limiting pin, the end of the fixing shaft 1212 is provided with a pin hole 300, and the limiting member 200 is detachably inserted into the pin hole 300.
In the embodiment, the supporting blocks with the supporting shafts on two sides are arranged at the middle position of the mounting opening, and the supporting piece for mounting the pulley fixing shaft is rotatably arranged on the supporting shaft, so that the pulley of the front wheel unit and the pulley on the rear wheel unit can rotate around the supporting shaft in a small amplitude in the using process, the height of the front wheel and the height of the rear wheel can be automatically adjusted along with the condition of the road surface when the front wheel and the rear wheel correspond to some uneven road surfaces, the problem that the shaft of the bearing wheel is easily damaged due to the fact that the single wheel supports the other wheel in a suspension mode when the existing bearing wheel meets an uneven road surface is avoided, and the service life of the.
In addition, all be equipped with the mounting groove through opening on the installing opening both sides, install support piece in the mounting groove to set up support piece and set up the spacing groove on the lateral surface of yoke plate promptly along its length direction, at a fixed axle demountable installation locating part coordinately, make whole simple structure ingenious, the dismouting is convenient, is convenient for maintain.
In the present invention, it is to be understood that: the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or replacements that can be easily conceived by those skilled in the art with the technical suggestion of the present invention, such as a design concept that after bottle blanks are arranged in a state that openings face upward, bottle blanks are positioned by a bottle blank feeding mechanism, then bottle blanks are positioned by a transfer mechanism, then bottle blanks are fixed by negative pressure adsorption, and then the bottle blanks are subjected to phase analysis by a detection component to realize detection of bottle openings and bottle body peripheral surfaces of bottle blanks, should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A scissors-type forklift truck includes a truck body portion (1a), a mast portion (2a) provided on a front side of the truck body portion (1a), and a roof rack portion (3a) provided on an upper side of the truck body portion (1 a); the automobile body part (1a) comprises an automobile frame assembly (1), a driving unit (1b) is arranged on the left rear side of the automobile frame assembly (1), a standing cab (2b) is arranged on the right rear side of the automobile frame assembly, an operation and control unit (3b) is arranged above the front side of the standing cab (2b), a battery unit (4b) is arranged below the operation and control unit (3b), and a hydraulic station (6) is arranged above the driving unit (1 b); the forklift truck is characterized in that a first controller (7) and a second controller (8) which are connected with a hydraulic station (6) are further arranged at positions between a control unit (3b) and a battery unit (4b) in the truck frame assembly (1), and the control unit (3b) is in electric signal connection with the first controller (7) and the second controller (8);
a main valve group (10) for controlling the overall lifting of the scissor structure (5) and the fork (2) is further arranged in the frame assembly (1), and the first controller (7) controls the hydraulic station (6) to start to provide hydraulic pressure for the main valve group (10); the hydraulic control fork mechanism is characterized in that a forward and backward moving valve group (20) for controlling the scissor structure (5) to be opened or closed is arranged at a position, close to the portal structure (4), of the scissor structure (5), an inclining valve group (30) for controlling the fork (2) to incline and a side moving valve group (40) for controlling the fork (2) to move laterally are arranged at a position, close to the fork (2), of the scissor structure (5), and the second controller (8) controls the hydraulic station (6) to be started to provide hydraulic pressure for the forward and backward moving valve group (20), the inclining valve group (30) and the side moving valve group (40).
2. A scissors reach truck as set forth in claim 1, characterized in that: the main valve group (10) is connected with a lifting middle oil cylinder (101) and a lifting side oil cylinder (102), one side of the scissor structure (5) close to the frame assembly (1) is provided with a sliding frame (51), the sliding frame (51) is fixed on an inner portal frame of the portal frame structure (4), the scissor structure (5) slides up and down along the inner portal frame of the portal frame structure (4) under the driving of the lifting middle oil cylinder (101) through the sliding frame (51), and the lifting side oil cylinder (102) is used for driving the inner portal frame of the portal frame structure (4) and the scissor structure (5) to integrally slide up and down along an outer fixed portal frame of the portal frame structure (4).
3. A scissors reach truck as set forth in claim 2, characterized in that: the front and rear moving valve group (20) is connected with a front and rear moving oil cylinder (201), one end of the front and rear moving oil cylinder (201) is rotatably connected with the sliding frame (51), and the other end of the front and rear moving oil cylinder is rotatably connected with an inner fork plate (53) of the scissor fork structure (5).
4. A scissors reach truck as set forth in claim 1, characterized in that: incline and face upward valves (30) and side group of moving (40) and set up as an organic whole, it is connected with the hydro-cylinder of inclining (301) to incline and face upward valves (30), the side group of moving (40) is connected with side and moves hydro-cylinder (401), fork (2) are for can swinging to set up it and incline and face upward or pitch backward under the hydro-cylinder of inclining (301) effect, side moves hydro-cylinder (401) and is two-way hydro-cylinder, and its both ends are connected with two fork (2) about with respectively, and two fork (2) move left or move right in step about the drive.
5. A scissors reach truck as set forth in claim 1, characterized in that: the main valve group (10) and the forward and backward moving valve group (20) are connected through rubber pipes (50), the forward and backward moving valve group (20) and the tilting valve group (30) and the side moving valve group (40) are connected through rubber pipes (50), a pulley block (52) is arranged on the scissor fork structure (5), and the rubber pipes (50) between the forward and backward moving valve group (20) and the tilting valve group (30) and between the side moving valve group (40) bypass the pulley block (52).
6. A scissors reach truck as set forth in claim 1, characterized in that: the driving unit (1b) is in signal connection with a second controller (8).
7. A scissors reach truck as set forth in claim 1, characterized in that: the bicycle frame assembly is characterized by further comprising a supporting leg assembly (11) and a bearing wheel assembly (12) which are fixed on the bicycle frame assembly (1), wherein an installation opening (111) is formed in the front end portion of the supporting leg assembly (11), the bearing wheel assembly (12) is arranged in the installation opening (111), a supporting block (112) is fixedly arranged in the middle of the installation opening (111), and supporting shafts (114) are arranged at two ends of the supporting block (112);
the bearing wheel assembly (12) comprises a front wheel unit (121) and a rear wheel unit (122) which are respectively arranged on the front side and the rear side of the supporting block (112), and the front wheel unit (121) and the rear wheel unit (122) are arranged in a swinging mode by taking a supporting shaft (114) on the supporting block (112) as a fulcrum.
8. A scissors reach truck as set forth in claim 7, wherein: the front wheel unit (121) and the rear wheel unit (122) respectively comprise a support part (1211), a fixed shaft (1212) fixed on the support part (1211) and a pulley (1213) rotatably arranged on the fixed shaft (1212); both sides of the installation opening (111) are provided with installation grooves (113), the support shaft (114) extends into the installation grooves (113), and the support piece (1211) is arranged in the installation grooves (113).
9. A scissors reach truck as set forth in claim 7, wherein: the support element (1211) comprises a detachable jointed connecting plate (100), and mounting holes (1001) for a fixing shaft (1212) to pass through are formed at two end parts of the upper connecting plate (100); a limiting groove (1002) is formed in the outer side surface of the connecting plate (100) along the length direction of the connecting plate, a limiting piece (200) is arranged on the fixed shaft (1212), and the end of the limiting piece (200) extends into the limiting groove (1002); the limiting piece (200) is arranged to be a limiting pin, the end of the fixing shaft (1212) is provided with a pin hole (300), and the limiting piece (200) can be detachably inserted into the pin hole (300).
10. A scissors reach truck as set forth in claim 7, wherein: the driving unit (1b) comprises a driving wheel assembly (31) and an auxiliary wheel assembly (32), a balance suspension (33) is connected between the driving wheel assembly (31) and the auxiliary wheel assembly (32), the balance suspension (33) comprises a right-angle crank (331) and a lever (332), the horizontal section of the right-angle crank (331) is used for mounting the driving wheel assembly (31), an ear plate (333) is arranged at the position, close to the vertical section, of the horizontal section, the end part of the ear plate (333) is pivoted with an upper swing arm (334), the other end of the upper swing arm (334) is pivoted on the frame assembly (1), and a first spring (335) is arranged between the other end of the horizontal section and the frame assembly (1); one end of the lever (332) is pivoted with the lower end of the vertical section of the right-angle crank (331), and a middle fulcrum (336) of the lever (332) is supported and fixed on the frame assembly (1); a wheel carrier base plate (337) is fixed at the other end of the lever (332), the wheel carrier base plate (337) is used for mounting the auxiliary wheel assembly (32), and a second spring (338) is connected between the wheel carrier base plate (337) and the frame assembly (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010028715.3A CN111056501B (en) | 2020-01-11 | 2020-01-11 | Cut fork antedisplacement formula fork truck |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010028715.3A CN111056501B (en) | 2020-01-11 | 2020-01-11 | Cut fork antedisplacement formula fork truck |
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| CN111056501A true CN111056501A (en) | 2020-04-24 |
| CN111056501B CN111056501B (en) | 2020-09-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112062049A (en) * | 2020-08-27 | 2020-12-11 | 广东博智林机器人有限公司 | Top plate mechanism of fork taking device, fork taking device and carrying equipment |
| CN113173521A (en) * | 2021-05-28 | 2021-07-27 | 华侨大学 | Automatic change automobile-used fork truck device of lift access |
| CN113788437A (en) * | 2021-09-14 | 2021-12-14 | 杭州联核科技有限公司 | Unmanned reach fork truck |
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| CN205953433U (en) * | 2016-06-30 | 2017-02-15 | 浙江加力仓储设备股份有限公司 | Forward type forklift truck's assembly that traveles |
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| CN1050706A (en) * | 1989-10-04 | 1991-04-17 | 日本石油化学株式会社 | The control setup of forklift truck cargo handling operation |
| CN101863433A (en) * | 2010-05-20 | 2010-10-20 | 谷维才 | Full hydraulic driving forklift driven by double static pressure motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112062049A (en) * | 2020-08-27 | 2020-12-11 | 广东博智林机器人有限公司 | Top plate mechanism of fork taking device, fork taking device and carrying equipment |
| CN112062049B (en) * | 2020-08-27 | 2022-02-11 | 广东博智林机器人有限公司 | Top plate mechanism of fork taking device, fork taking device and carrying equipment |
| CN113173521A (en) * | 2021-05-28 | 2021-07-27 | 华侨大学 | Automatic change automobile-used fork truck device of lift access |
| CN113788437A (en) * | 2021-09-14 | 2021-12-14 | 杭州联核科技有限公司 | Unmanned reach fork truck |
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|---|---|
| CN111056501B (en) | 2020-09-08 |
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