Lifting and transferring device

Abstract

The utility model discloses a lifting and transferring device which comprises a first lifting rack and a second lifting rack which are symmetrically arranged. A lifting frame is movably arranged between the first lifting rack and the second lifting rack, and chain type lifting structures are arranged on the first lifting rack and the second lifting rack; the two chain type lifting structures are connected to the two sides of the lifting frame in a traction mode. Lifting beams are arranged on the two side edges of the lifting frame; due to the fact that the chain type lifting structure is in the tightened state all the time, accidents such as tooth skipping and chain disengaging between the chain links and the chain wheels can be avoided, meanwhile, the tightened chain can avoid interference with other objects around, the situation that the lifting process is driven by the gravity of goods can be avoided in the lifting process, and the lifting process is more stable.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of warehousing machinery, more specifically is a kind of lifting transfer device. BACKGROUND

[0002] The conventional lifting transfer device generally selects the transmission method of suspension chain type chain transmission, due to the vertical hanging phenomenon of chain, the meshing angle of chain link and sprocket will change constantly in transmission process, the meshing precision is poor, and gravity participates in driving in the process of descending, and the lifting transfer device is easily caused jump tooth, chain off and other accidents, affect normal transmission, and the chain of drooping is easy to interfere with goods shelf or goods, so as to cause the descending speed of lifting transfer device to be uncontrollable, cause the collapse of goods or goods shelf. SUMMARY

[0003] The utility model discloses a kind of lifting transfer devices, can avoid the jump tooth, chain off and other accidents between chain link and sprocket, simultaneously tight chain can avoid interference with other things, the gravity of goods can be avoided to drive lifting process when lifting, so that lifting process is more stable.

[0004] Technical scheme: to achieve the above object, the utility model discloses a kind of lifting transfer device, including the first lifting frame and the second lifting frame of symmetrical arrangement;First lifting frame and the second lifting frame between movably set have lifting frame, first lifting frame and the second lifting frame are all provided with chain type lifting structure;Two chain type lifting structures are tractionally connected to the two sides of lifting frame;The two sides of lifting frame are lifting beam;

[0005] Each chain type lifting device includes first transmission chain, second transmission chain, driving sprocket group, first driven sprocket group, second driven sprocket group and third driven sprocket group, driving sprocket group is located at the downside of lifting beam A end, first driven sprocket is located at the upside of lifting beam B end, second driven sprocket group is located at the upside of lifting beam A end, third driven sprocket group is located at the downside of lifting beam middle part, one end of first transmission chain and second transmission chain is fixedly connected at the downside of lifting beam middle part, first transmission chain is crossed in order driving third driven sprocket group, driving sprocket group, second driven sprocket group and first driven sprocket group, second transmission chain is crossed in order driving third driven sprocket group, driving sprocket group and second driven sprocket group;The other end of first transmission chain is connected at the upside of lifting beam B end, the other end of second transmission chain is connected at the upside of lifting beam A end.

[0006] Further, first lifting frame and the second lifting frame are all provided with vertical slide rail, two lifting beams are installed with slider block seat, two slider block seats are respectively close to the side of first lifting frame and the second lifting frame and are all provided with slider block, slider block and slide rail sliding fit.

[0007] Further, the first transmission chain comprises a first a section chain, a first b section chain, a first c section chain, a first d section chain and a first e section chain along the length direction, the first a section chain is vertically arranged between the lifting beam B end and the first driven sprocket set, the first b section chain is horizontally arranged between the first driven sprocket set and the second driven sprocket set, the first c section chain is vertically arranged between the second driven sprocket set and the driving sprocket set, the first d section chain is horizontally arranged between the driving sprocket set and the third driven sprocket set, and the first e section chain is vertically arranged between the third driven sprocket set and the lower middle end of the lifting beam.

[0008] Further, the second transmission chain 10 comprises a second f section chain, a second g section chain, a second h section chain and a second i section chain along the length direction, the second f section chain is vertically arranged between the second driven sprocket set and the lifting beam A end, the second g section chain is vertically arranged between the second driven sprocket set and the driving sprocket set, the second h section chain is horizontally arranged between the driving sprocket set and the third driven sprocket set, and the second i section chain is vertically arranged between the third driven sprocket set and the lower middle end of the lifting beam.

[0009] Further, the upper side of the lifting frame is provided with a translation fork, the translation fork comprises a pair of parallel fork bars, each fork bar is parallel to the lifting beam, and the fork bar driving device can drive the two fork bars to translate to the front side and the rear side between the first lifting frame and the second lifting frame along the length direction.

[0010] Further, the two sets of driving sprocket sets are arranged at the two ends of the driving shaft, and the driving shaft is coaxially arranged in transmission connection with the driving shaft of the driving motor.

[0011] Beneficial effects: the lifting and transferring device can avoid the tooth skipping and chain disengagement between the chain links and the sprockets, and the tight chain can avoid the interference with other things, so that the gravity of the goods can not drive the lifting process, and the lifting process is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structure schematic view of the lifting and transferring device.

[0013] Figure 2 It is an enlarged schematic view of the connection structure of the first transmission chain and the second transmission chain and the lifting beam.

[0014] Figure 3 It is a front view of the overall structure of the lifting and transferring device when the translation fork is installed on the lifting frame.

[0015] Figure 4 It is a left view of the overall structure of the lifting and transferring device when the translation fork is installed on the lifting frame. DETAILED DESCRIPTION

[0016] The utility model will be further explained in connection with the drawings.

[0017] As shown in Figure 1 and 2 A lifting and transferring device, comprising a first lifting frame 1 and a second lifting frame 2 arranged symmetrically, a lifting frame 4 movably arranged between the first lifting frame 1 and the second lifting frame 2, a chain lifting structure arranged on each of the first lifting frame 1 and the second lifting frame 2, the two chain lifting structures being tractionally connected to the two sides of the lifting frame 4, the two side edges of the lifting frame 4 being lifting beams 5, two beams arranged perpendicularly to the lifting beams 5 on the lifting frame 4 being connecting beams 6, a driving motor 3 being installed on the first lifting frame 1 or the second lifting frame 2, and the driving motor 3 being located on the side away from the other of the first lifting frame 1 and the second lifting frame 2, the driving motor 3 driving the lifting frame 4 to lift or lower through driving the chain lifting structure.

[0018] Each chain lifting device comprises a first transmission chain 9, a second transmission chain 10, a driving sprocket set 15, a first driven sprocket set 11, a second driven sprocket set 12 and a third driven sprocket set 13, one end of the lifting beam 5 being an A end and the other end being a B end, the driving sprocket set 15 being located on the lower side of the A end of the lifting beam 5, the first driven sprocket set 11 being located on the upper side of the B end of the lifting beam 5, the second driven sprocket set 12 being located on the upper side of the A end of the lifting beam 5, the third driven sprocket set 13 being located on the lower side of the middle part of the lifting beam 5, the two first driven sprocket sets 11 being installed on the first lifting frame 1 and the second lifting frame 2 above the B end of the lifting beam 5 through two first sprocket supports respectively, the two second driven sprocket sets 12 being installed on the first lifting frame 1 and the second lifting frame 2 above the A end of the lifting beam 5 through two second sprocket supports respectively, the two third driven sprocket sets 13 being arranged below the middle part of the lifting frame 5 on the first lifting frame 1 and the second lifting frame 2 through two support shafts respectively, the two driving sprocket sets 15 being transmissionally arranged on the two ends of a driving shaft 14, the driving shaft 14 being coaxially transmissionally connected with the driving shaft of the driving motor 3, when the driving shaft 14 rotates under the driving of the driving shaft of the driving motor 3, one driving sprocket set 15 can simultaneously drive the first transmission chain 9 and the second transmission chain 10 to move, the first transmission chain 9 and the second transmission chain 10 being driven by the driving sprocket set 15 to simultaneously lift or lower the A end and the B end of the lifting beam 5, and the two lifting beams 5 are always on the same horizontal plane during the lifting or lowering process, and the A end and the B end of each lifting beam 5 are always on the same horizontal plane;

[0019] One end of the first transmission chain 9 and the second transmission chain 10 is fixedly connected to the lower side of the middle part of the lifting beam 5, the first transmission chain 9 is sequentially crossed over the third driven sprocket set 13, the driving sprocket set 15, the second driven sprocket set 12 and the first driven sprocket set 11, and the second transmission chain 10 is sequentially crossed over the third driven sprocket set 13, the driving sprocket set 15 and the second driven sprocket set 12; the other end of the first transmission chain 9 is connected to the upper side of the B end of the lifting beam 5, and the other end of the second transmission chain 10 is connected to the upper side of the A end of the lifting beam 5, and the first transmission chain 9 and the second transmission chain 10 are always in a taut state, and the first transmission chain 9 and the second transmission chain 10 still have a certain reserved tension in the taut state, so as to prevent the first transmission chain 9 or the second transmission chain 10 from being broken due to the tension generated by the gravity of the goods on the first transmission chain 9 or the second transmission chain 10 when the goods are placed on the lifting frame 4, and simultaneously prevent the first transmission chain 9 and the second transmission chain 10 from being broken due to the inertia of the lifting frame 4 and the goods when the lifting frame 4 and the goods are simultaneously lifted by the driving of the driving sprocket set 15, if the driving motor 3 suddenly stops in the process of the lifting frame 4 and the goods being simultaneously lifted; simultaneously, since the first transmission chain 9 and the second transmission chain 10 are always in a taut state, the gravity of the lifting frame 4 and the goods does not play a driving role in the process of the lifting frame 4 and the goods being simultaneously lowered by the driving of the driving sprocket set 15, on the contrary, the first transmission chain 9 connected to the B end of the lifting beam 5 and the second transmission chain 10 connected to the A end of the lifting beam 5 need to overcome the gravity of the lifting frame 4 and the goods, so in the lifting and transferring device, the lowering process of the lifting frame 4 and the goods is realized by simultaneously driving the first transmission chain 9 and the second transmission chain 10 to move by the driving motor 3, so that the first transmission chain 9 and the second transmission chain 10 connected to one end of the lower side of the middle part of the lifting beam 5 simultaneously generate downward tension on the lifting beam 5, and the lifting frame 4 and the goods are simultaneously lowered under the action of the above-mentioned tension, so that the process of the lifting frame 4 and the goods being simultaneously lowered is more stable.

[0020] The first transmission chain 9 includes a first a section chain, a first b section chain, a first c section chain, a first d section chain and a first e section chain along the length direction, the first a section chain is vertically arranged between the B end of the lifting beam 5 and the first driven sprocket set 11, the first b section chain is horizontally arranged between the first driven sprocket set 11 and the second driven sprocket set 12, the first c section chain is vertically arranged between the second driven sprocket set 12 and the driving sprocket set 15, the first d section chain is horizontally arranged between the driving sprocket set 15 and the third driven sprocket set 13, and the first e section chain is vertically arranged between the third driven sprocket set 13 and the lower end of the middle part of the lifting beam 5;

[0021] The second transmission chain 10 includes a second f-section chain, a second g-section chain, a second h-section chain and a second i-section chain in the length direction, the second f-section chain is vertically arranged between the second driven sprocket set 12 and the A end of the lifting beam 5, the second g-section chain is vertically arranged between the second driven sprocket set 12 and the driving sprocket set 15, the second h-section chain is horizontally arranged between the driving sprocket set 12 and the third driven sprocket set 13, and the second i-section chain is vertically arranged between the third driven sprocket set 13 and the lower middle end of the lifting beam 5.

[0022] The upper side of the A end of the lifting beam 5 is provided with the first connecting pin 7, the upper side of the B end of the lifting beam 5 is provided with the second connecting pin 8, and the lower side of the middle section of the lifting beam 5 is provided with two third connecting pins 23; the first a-section chain of the first transmission chain 9 is connected to the first connecting pin 7, and the first e-section chain of the first transmission chain 9 is connected to any one of the third connecting pins 23; the second f-section chain of the second transmission chain 10 is connected to the second connecting pin 8, and the second i-section chain of the second transmission chain 10 is connected to the other third connecting pin 23.

[0023] The first lifting frame 1 and the second lifting frame 2 are both provided with slide rails 17, the two lifting beams 5 are installed with sliding block seats 19, and the two sliding block seats 19 are both provided with sliding blocks 18 near one side of the first lifting frame 1 and the second lifting frame 2 respectively, and the sliding blocks are in sliding cooperation with the slide rails 17; the slide rails 17 can make the A end and the B end of the lifting beam 5 simultaneously lift more stably under the driving of the driving sprocket set 15, so that the lifting frame 4 will not shake due to vibration generated during the operation of the lifting machine, and the lifting height of the lifting and transferring device can be increased by increasing the length of the slide rails 17 and the first transmission chain 9 and the second transmission chain 10.

[0024] As shown in Figure 3 and 4 The upper side of the lifting frame 4 is installed with a translating fork 24, the translating fork 24 includes a pair of parallel fork bars 26, each of which is parallel to the lifting beam 5, the B end of the lifting beam 5 is the front side between the first lifting frame 1 and the second lifting frame 2, and the A end of the lifting beam 5 is the rear side between the first lifting frame 1 and the second lifting frame 2; a fork bar driving device can drive the two fork bars 26 to translate to the front side and the rear side between the first lifting frame 1 and the second lifting frame 2 in the length direction, the two fork bars 26 are in sliding cooperation with two guide devices 25, each guide device 25 includes a fixed guide rail and a sliding guide rail, the two fixed guide rails are parallel to the lifting beam 5 and are fixedly installed on the lifting frame 4, the two sliding guide rails are in sliding cooperation with the two fixed guide rails through guide bars, and the two fork bars 26 are in sliding cooperation with the two sliding guide rails through the guide bars; in the initial state, the two fork bars 26 and the two sliding guide rails are located between the first lifting frame 1 and the second lifting frame 2.

[0025] In the working method of the lifting and transferring device, when the carrying vehicle device carries the tray carrying the goods to the warehouse-in side of the lifting and transferring device, the lifting structure of the carrying device lifts the tray carrying the goods upward until the lower end of the tray carrying the goods is lifted above the translation fork 24;

[0026] The fork driving device drives the two prongs 26 of the translation fork 24 to translate to the front side between the first lifting frame 1 and the second lifting frame 2. When the two prongs 26 move to the end of the two sliding rails close to the front side between the first lifting frame 1 and the second lifting frame 2, under the driving of the fork driving device, the two prongs 26 and the two sliding rails simultaneously translate relative to the fixed rail to the front side between the first lifting frame 1 and the second lifting frame 2, until the two prongs 26 move away from the end of the fixed rail to the side of the tray carrying the goods away from the lifting and transferring device, and then the fork driving device is controlled to be paused;

[0027] The driving motor 3 is controlled to start, so that the two groups of driving sprockets 15 on the driving shaft 14 can simultaneously drive the first transmission chain 9 and the second transmission chain 10 arranged on the first lifting frame 1 and the second lifting frame 2. The two first transmission chains 9 and the two second transmission chains 10 move synchronously, so that the translation fork 24 slowly lifts upward together with the lifting frame 4 under the joint action of the two first transmission chains 9 and the two second transmission chains 10. The two prongs 26 of the translation fork 24 first contact the bottom of the tray carrying the goods, and then the two prongs 26 of the translation fork 24 lift the tray carrying the goods together with the lifting frame 4 to continue to rise under the joint action of the two first transmission chains 9 and the two second transmission chains 10;

[0028] When the lifting frame 4 and the translation fork 24 rise to the upper side of the warehouse-in device under the joint action of the two first transmission chains 9 and the two second transmission chains 10, the driving motor 3 is controlled to be paused, and the fork driving device drives the two prongs 26 of the translation fork 24 to translate to the rear side between the first lifting frame 1 and the second lifting frame 2. When the two prongs 26 move to the end of the two sliding rails close to the rear side between the first lifting frame 1 and the second lifting frame 2, under the driving of the fork driving device, the two prongs 26 and the two sliding rails simultaneously translate relative to the fixed rail to the rear side between the first lifting frame 1 and the second lifting frame 2, until the two prongs 26 move to the upper side of the warehouse-in device, and then the fork driving device is controlled to be paused;

[0029] The driving motor 3 is controlled to start, the lifting frame 4 and the translation fork 24 are lowered to the lower end of the pallet carrying the goods to contact the warehousing device under the joint action of the two first transmission chains 9 and the two second transmission chains 10, then the driving motor 3 is controlled to stop, and the warehousing device is started to drive the pallet carrying the goods to move to the warehouse direction, so that the warehousing process is completed.

[0030] The above is the preferred embodiment of the utility model, it should be pointed out that: for the ordinary skilled person in the art without departing from the principle of the utility model, can make several improvements and refinements, these improvements and refinements should also be considered as the protection scope of the utility model.

Claims

1. A hoist and transport device, characterized by: It includes symmetrically arranged first and second lifting frames (1) and (2), a lifting frame (4) movably arranged between the first and second lifting frames (1) and (2), and chain lifting structures arranged on the first and second lifting frames (1) and (2); the two chain lifting structures are tractionally connected to the two sides of the lifting frame (4); the two side edges of the lifting frame (4) are lifting beams (5); Each chain lifting structure includes a first transmission chain (9), a second transmission chain (10), a driving sprocket set (15), a first driven sprocket set (11), a second driven sprocket set (12), and a third driven sprocket set (13); the driving sprocket set (15) is located on the lower side of the A end of the lifting beam (5), the first driven sprocket set (11) is located on the upper side of the B end of the lifting beam (5), the second driven sprocket set (12) is located on the upper side of the A end of the lifting beam (5), the third driven sprocket set (13) is located on the lower side of the middle part of the lifting beam (5), one end of the first transmission chain (9) and the second transmission chain (10) is fixedly connected to the lower side of the middle part of the lifting beam (5), the first transmission chain (9) sequentially passes through the third driven sprocket set (13), the driving sprocket set (15), the second driven sprocket set (12), and the first driven sprocket set (11), and the second transmission chain (10) sequentially passes through the third driven sprocket set (13), the driving sprocket set (15), and the second driven sprocket set (12); the other end of the first transmission chain (9) is connected to the upper side of the B end of the lifting beam (5), and the other end of the second transmission chain (10) is connected to the upper side of the A end of the lifting beam (5).

2. A lifting and transfer device according to claim 1, characterised in that: The first and second lifting frames (1) and (2) are each provided with a vertical sliding rail (17), the two lifting beams (5) are each provided with a sliding block seat (19), and the two sliding block seats (19) are each provided with a sliding block (18) near one side of the first and second lifting frames (1) and (2); the sliding blocks are in sliding cooperation with the sliding rails (17).

3. The lifting and transferring device according to claim 1, wherein: The first transmission chain (9) includes a first a section chain, a first b section chain, a first c section chain, a first d section chain, and a first e section chain along the length direction; the first a section chain is vertically arranged between the B end of the lifting beam (5) and the first driven sprocket set (11), the first b section chain is horizontally arranged between the first driven sprocket set (11) and the second driven sprocket set (12), the first c section chain is vertically arranged between the second driven sprocket set (12) and the driving sprocket set (15), the first d section chain is horizontally arranged between the driving sprocket set (15) and the third driven sprocket set (13), and the first e section chain is vertically arranged between the third driven sprocket set (13) and the lower end of the middle part of the lifting beam (5).

4. The lifting and transfer device of claim 1, wherein: The second transmission chain (10) includes a second f-section chain, a second g-section chain, a second h-section chain and a second i-section chain in length direction, the second f-section chain is vertically between the second driven sprocket set (12) and the A end of the lifting beam (5), the second g-section chain is vertically between the second driven sprocket set (12) and the driving sprocket set (15), the second h-section chain is horizontally between the driving sprocket set (15) and the third driven sprocket set (13), and the second i-section chain is vertically between the third driven sprocket set (13) and the middle lower end of the lifting beam (5).

5. The lifting and transfer device of claim 1, wherein: The upper side of the lifting frame (4) is provided with a translating fork (24), the translating fork (24) includes a pair of parallel fork bars (26), each of the fork bars (26) is parallel to the lifting beam (5), and a fork bar driving device can drive the two fork bars (26) to translate to the front side and the rear side between the first lifting frame (1) and the second lifting frame (2) in length direction.

6. The lifting and transfer device of claim 1, wherein: Two groups of the driving sprocket set (15) are drivingly arranged at the two ends of the driving shaft (14), and the driving shaft (14) is coaxially drivingly connected with the driving shaft of the driving motor (3).

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