CN110872081A - Small front overhang hoisting system - Google Patents

Small front overhang hoisting system Download PDF

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Publication number
CN110872081A
CN110872081A CN201911176884.5A CN201911176884A CN110872081A CN 110872081 A CN110872081 A CN 110872081A CN 201911176884 A CN201911176884 A CN 201911176884A CN 110872081 A CN110872081 A CN 110872081A
Authority
CN
China
Prior art keywords
gantry
portal
hoisting system
fixedly connected
proximity switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911176884.5A
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Chinese (zh)
Inventor
王茂兵
时爱东
张征
李祥祥
陈春梅
吴年年
王思睿
任新雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Heli Co Ltd
Original Assignee
Anhui Heli Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Heli Co Ltd filed Critical Anhui Heli Co Ltd
Priority to CN201911176884.5A priority Critical patent/CN110872081A/en
Publication of CN110872081A publication Critical patent/CN110872081A/en
Pending legal-status Critical Current

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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
    • B66F9/08—Masts; Guides; Chains
    • 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
    • B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
    • B66F17/003—Safety devices, e.g. for limiting or indicating lifting force for fork-lift trucks
    • 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
    • B66F9/24—Electrical devices or systems

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

The invention discloses a small front suspension lifting system, which comprises an outer gantry and an inner gantry vertically and slidably connected with the outer gantry, wherein a gear is arranged at the inner side of the outer gantry, which is close to the inner gantry, a rack is fixedly connected to the inner gantry, the rack is meshed with the gear, a lower buffer proximity switch is fixedly connected to the lower end of the outer gantry, an upper buffer proximity switch is fixedly connected to the upper end of the outer gantry, the upper buffer proximity switch is positioned above the lower buffer proximity switch, and an induction support plate is fixedly connected to the middle part of the inner gantry. Therefore, the requirement on the front suspension of the forklift is reduced, the front suspension of the forklift is lower, and the turning radius of the forklift is further reduced.

Description

Small front overhang hoisting system
Technical Field
The invention relates to a forklift hoisting system, in particular to a small front suspension hoisting system.
Background
The hoisting system includes: outer door frame, inner door frame, fork frame, fender goods shelves, gyro wheel, and hydraulic system and electrical system. The outer gantry is fixed on the front axle, the whole front and back inclination of the gantry is realized through the inclined oil cylinder, the elevation of the gantry is realized between the inner gantry and the outer gantry through a hydraulic system, and the hydraulic system mainly comprises a reversing valve, a synchronous valve, a stop valve, a hydraulic motor and a reduction gearbox. The hydraulic oil evenly distributes the oil to the left oil circuit and the right oil circuit through the synchronous valves, and then the two hydraulic oil cylinders drive the inner gantry to lift.
However, in the design process of the hoisting system, the front overhang is an important parameter of the design, and in the design, the smaller the front overhang is, the better the front overhang is. The traditional hoisting system has the problem that due to the existence of a hoisting oil cylinder (and the view of the hoisting system is considered), the front overhang of the whole hoisting system is very large, and the reduction is difficult.
Disclosure of Invention
The present invention is directed to a small front suspension crane system to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a little front overhang hoisting system, including outer portal and with outer portal upper and lower sliding connection's interior portal, it is inboard that interior portal is located outer portal, outer portal inboard is close to interior portal department is equipped with the gear, fixedly connected with rack on the interior portal, the rack with gear engagement connects, buffering proximity switch under outer portal lower extreme fixedly connected with, buffering proximity switch is gone up to outer portal upper end fixedly connected with, it is located to go up buffering proximity switch down buffering proximity switch's top, interior portal middle part fixedly connected with response extension board, the response extension board is located go up buffering proximity switch, down between the buffering proximity switch.
As a further scheme of the invention: the outer door frame comprises an outer door frame channel steel and an outer door frame middle cross beam and an outer door frame upper cross beam which are fixedly connected to the inner side of the outer door frame channel steel.
As a further scheme of the invention: the lower buffering proximity switch is fixedly connected to the upper end of the middle cross beam of the outer gantry, and the upper buffering proximity switch is located at the lower end of the upper cross beam of the outer gantry.
As a further scheme of the invention: and the outer gantry channel steel is fixedly connected with a power motor, and the power motor is in power connection with the gear.
As a further scheme of the invention: the outer gantry channel steel is fixedly connected with a power motor support, the power motor is fixedly connected to the power motor support, and the power motor is in power connection with the gear through a speed reducer.
As a further scheme of the invention: the power motor support, the power motor, the gear and the rack are arranged symmetrically.
As a further scheme of the invention: and an inclined oil cylinder support used for being connected with an inclined oil cylinder of the forklift is fixedly connected to one side of the middle cross beam of the outer gantry, which is far away from the inner gantry.
As a further scheme of the invention: one end of the outer door frame far away from the inner door frame is fixedly connected with a door frame support, and the door frame support is located below a middle cross beam of the outer door frame.
As a further scheme of the invention: interior portal include interior portal channel-section steel and fixed connection in interior portal bottom end rail and interior portal entablature on the interior portal channel-section steel, rack fixed connection in be close on the interior portal channel-section steel one side of outer portal.
As a further scheme of the invention: one end of the inner gantry, which is far away from the outer gantry, is connected with a fork frame.
Compared with the prior art, the invention has the beneficial effects that:
1. the hydraulic transmission system is replaced by the gear rack transmission system, so that a hydraulic oil way and a lifting oil cylinder are not required to be installed, the structure of the forklift gantry is greatly simplified, the reduction of a front suspension is realized, the weight of the whole forklift is reduced, the oil consumption of the forklift is reduced, and the structure is simple, the required installation space is small, so that the requirement on the front suspension of the forklift is reduced, the front suspension of the forklift is lower, and the turning radius of the forklift is further reduced;
2. according to the forklift gantry lifting control system, the upper proximity buffer switch, the lower proximity buffer switch and the sensing support plate are arranged, and the position of the sensing support plate is detected through the proximity switch, so that position signals can be sent out at the high position and the low position of the lifting of a forklift gantry, and therefore the output rotating speed of a power motor and a speed reducer of the forklift can be controlled through the position signals, so that the speed reduction and buffering of the movement of the inner gantry in the upper limit position and the lower limit position are realized, and the safety performance;
3. this application has replaced original hydraulic system and hydraulic cylinder as power transmission structure through rack and pinion for it is simpler to play to rise the system, easily overhauls moreover, has reduced use cost, has also reduced fork truck fault rate.
Drawings
FIG. 1 is a front view of the door frame of the present embodiment;
FIG. 2 is a side view of the door frame of the present embodiment;
FIG. 3 is a front view of the outer gantry of the present embodiment;
FIG. 4 is a side view of the outer gantry of the present embodiment;
fig. 5 is a front view of the inner gantry.
In the figure: 1-outer door frame, 11-outer door frame middle beam, 12-outer door frame upper beam, 13-lower buffer proximity switch, 14-power motor, 15-power motor bracket and 16-gear;
2-an inner gantry, 21-an inner gantry lower beam, 22-an outer gantry upper beam, 23-a rack and 24-an induction support plate;
3-a gantry support, 4-a fork frame and 5-an inclined oil cylinder support.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, in the embodiment of the invention, a small front overhang hoisting system comprises an outer gantry 1 and an inner gantry 2 connected with the outer gantry 1 in an up-and-down sliding manner, the inner gantry 2 is positioned at the inner side of the outer gantry 1, an inclined cylinder support 5 used for connecting a forklift inclined cylinder is fixedly connected to one side of the outer gantry 1 far away from the inner gantry 2, a gantry support 3 is fixedly connected to one end of the outer gantry 1 far away from the inner gantry 2, a fork frame 4 is connected to one end of the inner gantry 2 far away from the outer gantry 1, the whole gantry is rotatably connected with a forklift front axle through the gantry support 3, and a gantry main body is driven to rotate around the gantry support 3 through the inclined cylinder so as to realize the integral inclination of the gantry.
The outer gantry 1 comprises an outer gantry channel steel, an outer gantry middle cross beam 11 and an outer gantry upper cross beam 12 which are fixedly connected to the inner side of the outer gantry channel steel, an inclined oil cylinder is rotatably connected to the outer gantry middle cross beam 11, the lower end of the outer gantry 1 is fixedly connected with a lower buffering proximity switch 13, the upper end of the outer gantry 1 is fixedly connected with an upper buffering proximity switch 17, the lower buffering proximity switch 13 is fixedly connected to the upper end of the outer gantry middle cross beam 11, the upper buffering proximity switch 17 is positioned at the lower end of the outer gantry upper cross beam 12, the upper buffering proximity switch 17 is positioned above the lower buffering proximity switch 13, a gear 16 is arranged on the inner side of the outer gantry 1 close to the inner gantry 2, a power motor support 15 is fixedly connected to the outer gantry channel steel, the power motor 14 is fixedly connected to the power motor support 15, the power motor 14 is in power connection with the gear 16 through a speed reducer, the power motor support 15, and then can drive gear revolve through power motor 14 to rise to provide power for the fork truck portal.
Interior portal 2 includes interior portal channel-section steel and inner portal bottom end rail 21 and the interior portal entablature 22 of fixed connection on interior portal channel-section steel, fixedly connected with rack 23 on the interior portal channel-section steel of both sides, rack 23 is located the one side that is close outer portal 1 on interior portal 2, rack 23 is connected with the meshing of gear 16, and then be connected transmission power through the meshing of gear 16 with rack 23, drive the relative outer portal 1 up-and-down sliding motion of interior portal 2, interior portal 2 middle part fixedly connected with response extension board 24, response extension board 24 is located buffering proximity switch 17, buffer proximity switch 13 down between, including the relative outer portal 2 gliding in-process of portal 2, can detect internal high level and low level of portal through proximity switch and response extension board 24, rise to the portal and descend and carry out buffer control through the result that detects.
When the forklift internal gantry 2 is in a lifting state, the power motor 14 drives the gear 16 to rotate through the speed reducer, and the gear 16 is meshed with the rack 23, so that in the rotating process of the gear 16, the rack 23 moves upwards relative to the gear 16, namely, the internal gantry 2 moves upwards relative to the external gantry 1, so as to achieve the effect of lifting the gantry; when the inner gantry 2 is in a descending state, the power motor 14 and the speed reducer drive the gear 16 to rotate reversely, and further drive the rack 23 to move downwards relative to the gear 16, namely the inner gantry 2 moves downwards relative to the gear 23, when the lower buffer proximity switch 13 detects that the induction support plate 24 is close to the induction support plate, information that the inner gantry 2 moves to a low-position state is sent, and further the output rotating speed of the speed reducer can be reduced, so that the descending speed of the inner gantry 2 is reduced, and the safety performance of the gantry is guaranteed.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. The utility model provides a little overhang hoisting system, including outer portal (1) and with outer portal (1) upper and lower sliding connection's interior portal (2), interior portal (2) are located outer portal (1) inboard, its characterized in that, outer portal (1) inboard is close to interior portal (2) department is equipped with gear (16), fixedly connected with rack (23) are gone up to interior portal (2), rack (23) with gear (16) meshing is connected, buffering proximity switch (13) under outer portal (1) lower extreme fixedly connected with, buffering proximity switch (17) are gone up to outer portal (1) upper end fixedly connected with, it is located to go up buffering proximity switch (17) down the top of buffering proximity switch (13), interior portal (2) middle part fixedly connected with response extension board (24), response extension board (24) are located go up buffering proximity switch (17), Between the lower buffer proximity switches (13).
2. A small front overhang hoisting system as in claim 1 wherein said outer gantry (1) comprises an outer gantry channel and an outer gantry middle beam (11) and an outer gantry upper beam (12) fixedly attached to the inside of said outer gantry channel.
3. A small front overhang hoisting system as in claim 2 wherein said lower buffer proximity switch (13) is fixedly attached to the upper end of said outer gantry middle beam (11) and said upper buffer proximity switch (17) is located at the lower end of said outer gantry upper beam (12).
4. The small front overhang hoisting system of claim 2, wherein a power motor (14) is fixedly connected to the outer gantry channel steel, and the power motor (14) is in power connection with the gear (16).
5. A small front overhang hoisting system as claimed in claim 4, wherein said outer gantry channel steel (1) is fixedly connected with a power motor bracket (15), said power motor (14) is fixedly connected with said power motor bracket (15), and said power motor (14) is power-connected with said gear (16) through a speed reducer.
6. Small front overhang hoisting system according to claim 4, wherein said power motor bracket (15), power motor (14), gear (16) and rack (23) are arranged in two groups and are arranged symmetrically.
7. A small front overhang hoisting system as in claim 2 wherein a tilt cylinder support (5) for attachment of a forklift tilt cylinder is fixedly attached to the outer mast center sill (11) on the side remote from the inner mast (2).
8. A small front overhang hoisting system as claimed in claim 2, wherein a mast support (3) is fixedly attached to an end of said outer mast (1) remote from said inner mast (2), said mast support (3) being located below said outer mast center sill (11).
9. A small front overhang hoisting system as in claim 1 wherein said inner gantry (2) comprises an inner gantry channel and an inner gantry lower beam (21) and an inner gantry upper beam (22) fixedly attached to said inner gantry channel, said rack (23) being fixedly attached to said inner gantry channel on the side close to said outer gantry (1).
10. A small front overhang hoisting system as in claim 1 wherein the end of the inner mast (2) remote from the outer mast (1) is attached to a fork carriage (4).
CN201911176884.5A 2019-11-26 2019-11-26 Small front overhang hoisting system Pending CN110872081A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911176884.5A CN110872081A (en) 2019-11-26 2019-11-26 Small front overhang hoisting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911176884.5A CN110872081A (en) 2019-11-26 2019-11-26 Small front overhang hoisting system

Publications (1)

Publication Number Publication Date
CN110872081A true CN110872081A (en) 2020-03-10

Family

ID=69717273

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911176884.5A Pending CN110872081A (en) 2019-11-26 2019-11-26 Small front overhang hoisting system

Country Status (1)

Country Link
CN (1) CN110872081A (en)

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