CN105502232B - A kind of electric motor type goods shelf - Google Patents

A kind of electric motor type goods shelf Download PDF

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Publication number
CN105502232B
CN105502232B CN201511005740.5A CN201511005740A CN105502232B CN 105502232 B CN105502232 B CN 105502232B CN 201511005740 A CN201511005740 A CN 201511005740A CN 105502232 B CN105502232 B CN 105502232B
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CN
China
Prior art keywords
internal frame
movable stand
main
screw mandrel
sidesway
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CN201511005740.5A
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Chinese (zh)
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CN105502232A (en
Inventor
夏萍
褚护生
相彬彬
颜丽华
牛顺义
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Anhui Agricultural University AHAU
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Anhui Agricultural University AHAU
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Priority to CN201511005740.5A priority Critical patent/CN105502232B/en
Publication of CN105502232A publication Critical patent/CN105502232A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F9/00Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06Devices 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
    • B66F9/075Constructional features or details
    • B66F9/20Means for actuating or controlling masts, platforms, or forks
    • B66F9/24Electrical devices or systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F9/00Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06Devices 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
    • B66F9/075Constructional features or details
    • B66F9/12Platforms; Forks; Other load supporting or gripping members
    • B66F9/14Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
    • B66F9/147Whole unit including fork support moves relative to mast
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F2700/00Lifting apparatus
    • B66F2700/09Other lifting devices

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

Abstract

The present invention proposes a kind of electric motor type goods shelf, including balladeur train, multiple main pins, multiple linking arms, internal frame, side arm, first driving means, the second drive device, pallet fork and the 3rd drive device;It is provided with balladeur train on multiple first connectors, internal frame and the second connector is installed, internal frame lower end is provided with positive stop strip, side arm and is provided with limiting card;First driving means include tilt telescopic motor, tilt the flexible deceleration device of main screw mandrel and installing plate;It is provided with internal frame in worm screw connecting bracket, worm screw connecting bracket and small clevis pin with head is installed;Second drive device includes sidesway telescopic drive motor and the flexible deceleration device of the main screw mandrel of sidesway;Pallet fork includes mounting bracket, the first movable stand and the second movable stand;First movable stand and the second movable stand are separately installed with the first permanent magnet and the second permanent magnet, mounting bracket and are provided with electromagnet.Combination of the invention is easy, is easy to maintenance, and driver's visual range is wide and environmentally friendly.

Description

A kind of electric motor type goods shelf
Technical field
The present invention relates to fork truck Special accessory technical field, and in particular to a kind of electric motor type goods shelf.
Background technology
Reach truck is one kind of industrial carrying and the warehousing forklift of handling, and it is mainly used in narrow space and height High-order access pallet in frame storehouse, luggage of going forward side by side is unloaded, the wheeled carrying vehicle of the reach of stacking and short distance hauling operation.For convenience Goods is forked and stacking, and improves flexibility and the handling efficiency of fork truck, according to the particularity of its working environment, need to make reach The goods shelf of formula fork truck has the function of left and right sidesway and anteversion and retroversion.Two are all used for the goods shelf of this current reach truck This function is realized to three hydraulic jacks, this will necessarily bring the hydraulic plumbing system of complexity to portal frame system, thus cause The very poor influence in the visual field of driver forks the efficiency of pallet and stacking and easily occurs security incident, complicated fluid pressure line system The shortcoming that system is difficult to overcome in itself is exactly pipeline breakage and joint oil leak, and this can undoubtedly influence the working time that fork truck is worked continuously With the pollution for causing environment.The goods shelf of current this hydraulic cylinder type also cause portal frame system it is complicated, assemble it is cumbersome with And maintenance is complicated.
The content of the invention
The technical problem existed based on background technology, the present invention proposes a kind of electric motor type goods shelf.
A kind of electric motor type goods shelf proposed by the present invention, including it is balladeur train, multiple main pins, multiple linking arms, internal frame, preceding Frame, first driving means, the second drive device, pallet fork and the 3rd drive device;
Removable installation has multiple first connectors on balladeur train, and the first connector moving direction is vertical direction, main pin Corresponded with the first connector, main pin may be rotatably mounted on its corresponding first connector;
Second connector is installed, the second connector is corresponded with main pin, and the second connector is provided with master on internal frame Bearing pin connecting hole, the position of main pin correspondence main pin connecting hole may be rotatably mounted on the second connector, and whole main pins connect Connect axially bored line coincidence;Internal frame lower end is provided with positive stop strip, and positive stop strip is tapered into along the direction cross-sectional area away from internal frame, Side arm correspondence positive stop strip position is provided with limiting card, and side arm is movably mounted on internal frame, and positioned at internal frame away from balladeur train side;
First driving means include tilt telescopic motor, tilt the flexible deceleration device of main screw mandrel and installing plate;Install Plate is movably mounted on balladeur train, and installing plate moving direction is vertical direction, and tilt telescopic motor is installed on a mounting board, Be provided with internal frame it is rotatably mounted in worm screw connecting bracket, worm screw connecting bracket have a small clevis pin with head, tilt telescopic motor leads to Cross and tilt the flexible deceleration device drive connection small clevis pin with head of main screw mandrel, tilt telescopic motor driving small clevis pin with head makes worm screw connection branch Frame is rotated around main pin axis;
Second drive device includes sidesway telescopic drive motor and the flexible deceleration device of the main screw mandrel of sidesway;Sidesway telescopic drive Motor is arranged on side arm, and sidesway telescopic drive motor drives internal frame by the flexible deceleration device of the main screw mandrel of sidesway, and sidesway stretches Motor driving internal frame makes side arm be moved with respect to internal frame;
Pallet fork includes mounting bracket, the first movable stand and the second movable stand;Mounting bracket is removably mounted at side arm away from internal frame Side, mounting bracket is provided with the first shifting chute moved for the first movable stand to close and remote internal frame direction, the first movable stand Corresponding first movement groove location is arranged on mounting bracket, and the first movable stand, which is provided with, supplies the second movable stand to close and remote internal frame Second shifting chute of direction movement, the second movable stand correspondence second moves groove location and is arranged on the first movable stand, the first movement Frame and the second movable stand, which are separately installed with the first permanent magnet and the second permanent magnet, mounting bracket, is provided with electromagnet, and first Permanent magnet is located between electromagnet and the second permanent magnet;
3rd drive device drive connection internal frame and installing plate, the 3rd drive device driving internal frame and installing plate synchronously rise Drop.
Preferably, four-drive device, the permanent magnetic of four-drive device drive connection second are installed on second movable stand Iron, four-drive device drives the second permanent magnet to rotate.
Preferably, balladeur train limited block is installed on balladeur train.
Preferably, internal frame lower end is provided with sliding assisting apparatus close to side arm side, and sliding assisting apparatus includes hard Buddhist nun Imperial sliding block and baffle group, baffle group are multiple baffle plates around the distribution of hard nylon slide block periphery.
Preferably, hard nylon slide block is provided with oil groove.
Preferably, internal frame top is provided with raised draw runner, and side arm top position corresponding with raised draw runner is provided with Open Side Down Chute, chute shape with raised draw runner shape is removable coordinates.
Preferably, the main screw mandrel of sidesway stretches deceleration device and the flexible deceleration device of the main screw mandrel of inclination including cabinet, zanjon Ball bearing, main screw mandrel, spacing back-up ring, aiding support seat, minor leading screw, retainer, geared worm, internal thread worm gear and taper roller axle Hold;
Geared worm may be rotatably mounted on cabinet by deep groove ball bearing, and main screw mandrel passes through spacing back-up ring and aiding support Seat be may be rotatably mounted on cabinet, and minor leading screw is arranged on main screw mandrel by retainer, and internal thread worm gear passes through taper roll bearing Engaged on cabinet, and with minor leading screw and geared worm, main screw mandrel is connected with internal frame or small clevis pin with head.
Needed when the present invention is used flexible by tilting main screw mandrel by tilt telescopic motor during pallet fork run-off the straight Deceleration device drives small clevis pin with head, make worm screw connecting bracket around main pin axis rotate it is i.e. achievable, it is necessary to pallet fork in the horizontal direction When upper mobile, sidesway telescopic drive motor drives internal frame internal frame is occurred with respect to side arm by the flexible deceleration device of the main screw mandrel of sidesway The mobile pallet fork that can be achieved on side arm is moved horizontally, and when the height for needing pallet fork is adjusted, is passed through the 3rd and is driven Dynamic device driving internal frame and installing plate lifting, side arm of the invention, internal frame, sliding framework structure are simple, and combination is easy, coordinates skilful It is wonderful, assembly difficulty is not only reduced, the visual range for also improving driver is also convenient for after-sales service;Electromagnet and first permanent Magnet coordinates, and pallet fork can carry out the flexible of the first movable stand, effectively save electric motor type pallet fork by ferromagnetic change of electromagnetism The occupation of land face of frame simultaneously effectively adapts to different size of goods, and the second permanent magnet and the first permanent magnet are arranged into mutually exclusive One side it is relative, it is possible to prevente effectively from pallet fork position do not adjust and with article hard contact, cause article to damage, the present invention gram The shortcoming that hydraulic plumbing system is had by oneself in itself is taken, damaged and joint oil leak the history chronic illness of pipeline, reduction reach is thoroughly solved The fault rate of formula fork truck, extends fork truck stream time;Carriage mechanism has self-locking performance, oblique telescopic drive motor and sidesway When telescopic drive motor does not work, mechanism will not be moved because of external force, it is ensured that safety;Tilt the flexible deceleration device of main screw mandrel and sidesway The flexible deceleration device of main screw mandrel can improve the service life and bearing capacity of the present invention;The present invention is also effectively increased driver Visual range, improve the feature of environmental protection.
Brief description of the drawings
Fig. 1 is a kind of electric motor type goods shelf structural representation proposed by the present invention;
Fig. 2 is internal frame of the present invention and side arm structural representation;
Fig. 3 is side arm structural representation of the present invention;
Fig. 4 is inner rack structure schematic diagram of the present invention;
Fig. 5 is sliding framework structure schematic diagram of the present invention;
Fig. 6 is the flexible deceleration device structural representation of the main screw mandrel of sidesway of the present invention;
Fig. 7 is internal frame rearview structural representation of the present invention;
Fig. 8 is limiting clamp structure schematic diagram of the present invention;
Fig. 9 is pallet fork perspective view.
Embodiment
Shown in reference picture 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9, a kind of electric motor type goods proposed by the present invention Crotch, including balladeur train 1, multiple main pins, multiple linking arms, internal frame 4, side arm 5, first driving means, the second drive device, goods Fork and the 3rd drive device 9.
Removable installation has multiple first connectors 11 on balladeur train 1, and the moving direction of the first connector 11 is vertical direction, main Bearing pin is corresponded with the first connector 11, and main pin may be rotatably mounted on its corresponding first connector 11.
Second connector 43 is installed, the second connector 43 is corresponded with main pin, on the second connector 43 on internal frame 4 Provided with main pin connecting hole 431, the position of main pin correspondence main pin connecting hole 431 may be rotatably mounted at the second connector 43 On, whole axis of main pin connecting hole 431 are overlapped;The lower end of internal frame 4 is provided with positive stop strip 41, and positive stop strip 41 is along away from internal frame 4 Direction cross-sectional area taper into, the corresponding positive stop strip position of side arm 5 is provided with limiting card 51, and side arm 5 is movably mounted to On internal frame 4, and positioned at internal frame 4 away from the side of balladeur train 1, the lower end of internal frame 4 is provided with sliding assisting apparatus close to the side of side arm 5, sliding Dynamic auxiliary device includes hard nylon slide block 441 and baffle group 442, and baffle group 442 is to be multiple around the periphery of hard nylon slide block 441 The baffle plate of distribution.
First driving means include tilt telescopic motor 61, tilt the flexible deceleration device 62 of main screw mandrel and installing plate 63;Installing plate 63 is movably mounted on balladeur train 1, and the moving direction of installing plate 63 is vertical direction, tilt telescopic motor 61 On installing plate 63, being provided with internal frame 4 rotatably mounted in worm screw connecting bracket 42, worm screw connecting bracket 42 has small pin Axle, tilt telescopic motor 61 is by tilting the flexible drive connection small clevis pin with head of deceleration device 62 of main screw mandrel, tilt telescopic driving The driving small clevis pin with head of motor 61 makes worm screw connecting bracket 42 be rotated around main pin axis.
Second drive device includes sidesway telescopic drive motor 71 and the flexible deceleration device 72 of the main screw mandrel of sidesway;Sidesway stretches Motor 71 is arranged on side arm 5, and sidesway telescopic drive motor 71 is driven interior by the flexible deceleration device 72 of the main screw mandrel of sidesway Frame 4, the driving internal frame 4 of sidesway telescopic drive motor 71 makes side arm 5 be moved with respect to internal frame 4.
Pallet fork includes mounting bracket 81, the first movable stand 82 and the second movable stand 83;Mounting bracket 81 is removably mounted at side arm 5 Away from the side of internal frame 4, mounting bracket 81 is provided with the first movement moved for the first movable stand 82 to the close and remote direction of internal frame 4 Groove, the first movable stand 82 correspondence first moves groove location and is arranged on mounting bracket 81, and the first movable stand 82 is provided with to be moved for second Moving frame 83 is to the second shifting chute that is close and being moved away from the direction of internal frame 4, and the second movable stand 83 correspondence second moves groove location and pacified On the first movable stand 82, the first movable stand 82 and the second movable stand 83 are separately installed with the first permanent magnet 821 and second Electromagnet 811 is installed, it is permanent that the first permanent magnet 821 is located at electromagnet 811 and second on permanent magnet 831, mounting bracket 81 Between magnet 831;
The drive connection internal frame 4 of 3rd drive device 9 and installing plate 63, the 3rd drive device 9 driving internal frame 4 and installing plate 63 Synchronization lifting.
Four-drive device 832, the second permanent magnetic of drive connection of four-drive device 832 are installed on second movable stand 83 Iron 831, four-drive device 832 drives the second permanent magnet 831 to rotate.
Need during pallet fork run-off the straight to stretch by tilting main screw mandrel by tilt telescopic motor 61 when the present invention is used Reduce the driving small clevis pin with head of speed variator 62, worm screw connecting bracket 42 is rotated around main pin axis and can be achieved, it is necessary to which pallet fork is in water When square moving up, sidesway telescopic drive motor 71 drives internal frame 4 to make internal frame by the main screw mandrel of the sidesway deceleration device 72 that stretches It is moved with respect to side arm 5 and moving horizontally for pallet fork on the side arm 5 can be achieved, is adjusted needing the height of pallet fork When whole, internal frame 4 and installing plate 63 is driven to lift by the 3rd drive device 9, side arm of the invention, internal frame, sliding framework structure Simply, combine easy, coordinate ingenious, not only reduce assembly difficulty, the visual range for also improving driver is also convenient for after sale Maintenance;The permanent magnet 821 of electromagnet 811 and first coordinates, and pallet fork can carry out first by the change of the magnetic of electromagnet 811 and move Moving frame 82 it is flexible, the occupation of land face of effectively save electric motor type goods shelf simultaneously effectively adapts to different size of goods, diminution fork truck Radius of turn, makes fork truck adapt to smaller job space, and four-drive device 832 drives the second permanent magnet 831 to rotate can be with Make the second permanent magnet 831 and the mutually exclusive one side of the first permanent magnet 821 close to each other, be prevented effectively from pallet fork position and do not adjust It is whole good and with article hard contact, cause article to damage, the first permanent magnet 821 and the phase of the second permanent magnet 831 can also be made The one side of suction is close to each other, realizes that the second movable stand 83 is retracted in the second shifting chute.
In present embodiment, balladeur train 1 is provided with chaining plate away from the side of internal frame 4, and chaining plate can prevent balladeur train 1 to be arranged on Dropped when on inner upright mounting, the present invention is provided with balladeur train limited block from balladeur train 1, can limit the height that internal frame 4 rises in balladeur train 1 Degree.
In present embodiment, hard nylon slide block 441 is provided with oil groove, further reduces rubbing between internal frame 4 and side arm 5 Wipe power.
In present embodiment, the top of internal frame 4 is provided with raised draw runner 45, the top of side arm 5 and the raised corresponding position of draw runner 45 Provided with the chute that Open Side Down, chute shape with the raised shape of draw runner 45 is removable coordinates, by chute and raised draw runner 45 not Only facilitate and side arm 5 is arranged on internal frame 4, and make side arm 5 be difficult to drop using the effect of gravity.
In present embodiment, the flexible deceleration device 72 of the main screw mandrel of sidesway and the flexible deceleration device 62 of the main screw mandrel of inclination include Cabinet 001, deep groove ball bearing 002, main screw mandrel 003, spacing back-up ring 004, aiding support seat 005, minor leading screw 006, retainer 007th, geared worm 008, internal thread worm gear 009 and taper roll bearing 010;
Geared worm 008 may be rotatably mounted on cabinet 001 by deep groove ball bearing 002, and main screw mandrel 003 passes through limiting block Circle 004 and aiding support seat 005 may be rotatably mounted on cabinet 001, and minor leading screw 006 is arranged on main screw mandrel by retainer 007 On 003, internal thread worm gear 009 by taper roll bearing 010 be arranged on cabinet 001 on, and with minor leading screw 006 and geared worm 008 engagement, main screw mandrel 003 is connected with internal frame 4 or small clevis pin with head, and easy and effective and stable realizes tilt telescopic motor 61 With the transmission of sidesway telescopic drive motor 71.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto, Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.

Claims (7)

1. a kind of electric motor type goods shelf, it is characterised in that:Including balladeur train (1), multiple main pins, internal frame (4), side arm (5), first Drive device, the second drive device, pallet fork and the 3rd drive device (9);
Removable installation has multiple first connectors (11) on balladeur train (1), and the first connector (11) moving direction is vertical direction, Main pin is corresponded with the first connector (11), and main pin may be rotatably mounted on its corresponding first connector (11);
Second connector (43) is installed, the second connector (43) is corresponded with main pin, the second connector on internal frame (4) (43) main pin connecting hole (431) is provided with, the position of main pin correspondence main pin connecting hole (431) may be rotatably mounted at second On connector (43), whole main pin connecting hole (431) axis are overlapped;Internal frame (4) lower end is provided with positive stop strip (41), positive stop strip (41) tapered into along the direction cross-sectional area away from internal frame (4), side arm (5) correspondence positive stop strip position is provided with limiting card (51), side arm (5) is movably mounted on internal frame (4), and positioned at internal frame (4) away from balladeur train (1) side;
First driving means include tilt telescopic motor (61), tilt the flexible deceleration device (62) of main screw mandrel and installing plate (63);Installing plate (63) is movably mounted on balladeur train (1), and installing plate (63) moving direction is vertical direction, and tilt telescopic drives Dynamic motor (61) is arranged on installing plate (63), and worm screw connecting bracket (42), worm screw connecting bracket (42) are provided with internal frame (4) Above rotatably mounted to have small clevis pin with head, tilt telescopic motor (61) is connected by tilting flexible deceleration device (62) driving of main screw mandrel Small clevis pin with head is connect, tilt telescopic motor (61) driving small clevis pin with head makes worm screw connecting bracket (42) be rotated around main pin axis;
Second drive device includes sidesway telescopic drive motor (71) and the flexible deceleration device (72) of the main screw mandrel of sidesway;Sidesway stretches Motor (71) is arranged on side arm (5), and sidesway telescopic drive motor (71) passes through the flexible deceleration device of the main screw mandrel of sidesway (72) driving internal frame (4), sidesway telescopic drive motor (71) driving internal frame (4) makes side arm (5) be moved with respect to internal frame (4);
Pallet fork includes mounting bracket (81), the first movable stand (82) and the second movable stand (83);Mounting bracket (81) is removably mounted at Side arm (5) is away from internal frame (4) side, and mounting bracket (81), which is provided with, supplies the first movable stand (82) to close and remote internal frame (4) side To the first mobile shifting chute, the first movable stand (82) correspondence first moves groove location and is arranged on mounting bracket (81), and first moves Moving frame (82) is provided with for the second movable stand (83) to the second shifting chute that is close and being moved away from internal frame (4) direction, and second moves Moving frame (83) correspondence second moves groove location and is arranged on the first movable stand (82), the first movable stand (82) and the second movable stand (83) the first permanent magnet (821) and the second permanent magnet (831) are separately installed with, mounting bracket is provided with electromagnet on (81) (811), the first permanent magnet (821) is located between electromagnet (811) and the second permanent magnet (831);
3rd drive device (9) drive connection internal frame (4) and installing plate (63), the 3rd drive device (9) driving internal frame (4) and peace Fill plate (63) synchronization lifting.
2. electric motor type goods shelf according to claim 1, it is characterised in that:Second movable stand is provided with 4 wheel driven on (83) Dynamic device (832), four-drive device (832) second permanent magnet of drive connection (831), four-drive device (832) driving Second permanent magnet (831) is rotated.
3. electric motor type goods shelf according to claim 1, it is characterised in that:Balladeur train is provided with balladeur train limited block on (1).
4. electric motor type goods shelf according to claim 1, it is characterised in that:Pacify close to side arm (5) side internal frame (4) lower end Equipped with sliding assisting apparatus, sliding assisting apparatus includes hard nylon slide block (441) and baffle group (442), and baffle group (442) is Multiple baffle plates around the distribution of hard nylon slide block (441) periphery.
5. electric motor type goods shelf according to claim 4, it is characterised in that:Hard nylon slide block (441) is provided with oil groove.
6. electric motor type goods shelf according to claim 1, it is characterised in that:Internal frame (4) top is provided with raised draw runner (45), Side arm (5) top position corresponding with raised draw runner (45) is provided with the chute that Open Side Down, chute shape and raised draw runner (45) Shape is removable to be coordinated.
7. the electric motor type goods shelf according to claim 1-6 any one, it is characterised in that:The main screw mandrel of sidesway is flexible to slow down Device (72) and the main screw mandrel of inclination stretch deceleration device (62) including cabinet (001), deep groove ball bearing (002), main screw mandrel (003), spacing back-up ring (004), aiding support seat (005), minor leading screw (006), retainer (007), geared worm (008), interior Silk worm gear (009) and taper roll bearing (010);
Geared worm (008) may be rotatably mounted on cabinet (001) by deep groove ball bearing (002), and main screw mandrel (003) passes through limit Position back-up ring (004) and aiding support seat (005) may be rotatably mounted on cabinet (001), and minor leading screw (006) passes through retainer (007) it is arranged on main screw mandrel (003), internal thread worm gear (009) is arranged on cabinet (001) by taper roll bearing (010), And engaged with minor leading screw (006) and geared worm (008), main screw mandrel (003) is connected with internal frame (4) or small clevis pin with head.
CN201511005740.5A 2015-12-28 2015-12-28 A kind of electric motor type goods shelf Active CN105502232B (en)

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CN2183357Y (en) * 1993-12-13 1994-11-23 张玉杰 Manual fork lift
CN2277980Y (en) * 1994-02-09 1998-04-08 卢庆光 Fork regulator for fork lift
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