CN219823564U

CN219823564U - Lifting feeding device with anti-falling function

Info

Publication number: CN219823564U
Application number: CN202320394500.2U
Authority: CN
Inventors: 欧阳志尧; 蓝志坚; 黄春森
Original assignee: Guangdong Chuangxing Precision Manufacturing Co ltd
Current assignee: Guangdong Chuangxing Precision Manufacturing Co ltd
Priority date: 2023-03-06
Filing date: 2023-03-06
Publication date: 2023-10-13
Anticipated expiration: 2033-03-06

Abstract

The utility model relates to the technical field of lifting equipment, in particular to a lifting feeding device with a falling prevention function, which comprises a lifting frame, a lifting device, a falling prevention device, a telescopic device and a lifting platform; the lifting platform is fixedly connected with the lifting device, and the lifting device is used for driving the lifting platform to vertically move on the lifting frame; the telescopic device is arranged on the lifting platform, the material is placed on the telescopic device, and the telescopic device enables the material to extend out or retract back to the lifting platform; the anti-falling device comprises a locking mechanism and a speed limiting mechanism, wherein the locking mechanism is connected with the lifting platform and the speed limiting mechanism, and the speed limiting mechanism is used for controlling the lifting speed of the lifting platform; when the falling speed of the lifting platform is too high, the speed limiting mechanism drives the locking mechanism to emergently brake, so that the lifting platform stops lifting, and the problem that the lifting feeding device in the prior art is free of a falling prevention mechanism is solved, and if the lifting device driving the lifting frame to move is damaged in the use process, the safety problems of personnel, equipment, products and materials are easily caused.

Description

Lifting feeding device with anti-falling function

Technical Field

The utility model relates to the technical field of lifting equipment, in particular to a lifting feeding device with a falling prevention function.

Background

In the production of the modern society, the requirement on the production automation of equipment is higher and higher, and the conveying equipment plays an irreplaceable role, and the strong conveying capacity of the conveying equipment is not exceeded by other common mechanical equipment. The lifting feeding device plays an important role in the modern social development as a machine capable of operating in a vertical space.

The lifting feeding device in the prior art, like the combined type elevator disclosed in Chinese patent CN204097002U, comprises a fixed frame, wherein two sides of the fixed frame are respectively provided with a lifting cylinder, the upper end of a push rod of the lifting cylinder is connected with a lifting frame, the upper end of the lifting frame is provided with a lifting roller shaft support, and the lifting cylinder is opened to lift the lifting roller shaft support on the lifting frame to the height position of a workshop, so that lifting of materials is realized.

The lifting feeding device realizes the transfer of the lifting feeding device to materials in the horizontal direction by arranging a plurality of lifting roller shafts on the lifting roller shaft support, when the lifting feeding device is used for conveying the materials from the warehouse to the workshop, the warehouse and the workshop are all required to be provided with roller shafts for receiving the materials, so that the stability of the material transfer is ensured.

Disclosure of Invention

Aiming at the defects, the utility model aims to provide the lifting feeding device with the anti-falling function, which is provided with the anti-falling device and can ensure the safety problems of personnel, equipment, products and materials in the production process.

To achieve the purpose, the utility model adopts the following technical scheme:

a lifting feeding device with a falling prevention function comprises a lifting frame, a lifting device, a falling prevention device, a telescopic device and a lifting platform;

the lifting platform is fixedly connected with the lifting device, and the lifting device is used for driving the lifting platform to vertically move on the lifting frame;

the telescopic device is arranged on the lifting platform, materials are placed on the telescopic device, and the telescopic device enables the materials to extend out or retract back to the lifting platform;

the anti-falling device is arranged on the lifting frame and comprises a locking mechanism and a speed limiting mechanism, the locking mechanism is connected with the lifting platform and the speed limiting mechanism, and the speed limiting mechanism is used for controlling the lifting speed of the lifting platform;

when the descending speed of the lifting platform is too high, the speed limiting mechanism drives the locking mechanism to emergently brake, so that the lifting platform stops lifting.

Further, the lifting frame comprises a first frame, a second frame and a connecting frame, wherein the connecting frame is connected with the first frame and the second frame;

the first frame and the second frame comprise the anti-falling device and two upright posts, and the locking mechanism and the speed limiting mechanism are respectively positioned on two side surfaces of the same upright post, which are mutually perpendicular.

Further, the locking mechanism comprises a guide rail, a locking seat, a U-shaped block, a brake block and a pull rod;

the guide rail is arranged along the vertical direction of the upright post, and the locking seat moves along the guide rail;

the U-shaped block is arranged on the locking seat, and an opening of the U-shaped block is opposite to the guide rail;

one end of the pull rod is arranged at the top of the locking seat, and the other end of the pull rod is fixedly connected with the brake block;

the pull rod moves upwards to drive the brake block to move in the opening of the U-shaped block, so that the brake block locks the guide rail.

Further, two wedge-shaped blocks are arranged at two ends of the opening of the U-shaped block, the number of the two brake blocks is two, and the two brake blocks are respectively arranged on the two wedge-shaped blocks;

the pull rod is connected with the two braking blocks through a support, and a return spring is arranged between the support and a top plate of the locking seat;

a guide rail moving space is formed between the two brake blocks, and the pull rod moves upwards to drive the brake blocks to move along the wedge blocks, so that the guide rail moving space is reduced.

Further, the speed limiting mechanism comprises a speed limiter, a tensioner and a conveying rope;

the speed limiter is positioned at the top of the upright post, the tensioner is positioned at the bottom of the upright post, and the conveying rope is sleeved on the speed limiter and the tensioner;

the conveying rope is provided with a linkage rod, and the linkage rod is fixedly connected with the pull rod.

Further, the speed limiter comprises a speed limiting seat, a rope pulley, a cam and a swing arm assembly;

the rope pulley and the cam are arranged on the speed limiting seat through a rope pulley shaft;

the swing arm assembly comprises a swing arm roller, a swing arm support and a swing arm, wherein the swing arm support is fixedly arranged on the speed limiting seat, and the swing arm is rotatably arranged between the swing arm support and a side plate of the speed limiting seat;

the swing arm roller is connected with the swing arm, and the circumferential side surface of the swing arm roller is tangent with the circumferential side surface of the cam.

Further, the telescopic device comprises a supporting plate, a middle sliding plate, an upper sliding plate, a driving assembly and a chain assembly;

the supporting plate is fixedly arranged on the lifting platform, and the driving assembly drives the middle sliding plate to move along the length direction of the supporting plate;

the chain assembly drives the upper slide plate to move along the length direction of the middle slide plate.

Further, the driving assembly comprises a driving motor, a driving gear and a driving rack;

the driving rack is fixedly connected with the middle sliding plate, the driving motor is arranged at the bottom of the supporting plate, the driving gear is arranged at the driving end of the driving motor, and the driving rack is meshed with the driving gear;

the chain assembly comprises a first chain and a sprocket, one end of the first chain is connected with the upper sliding plate, the other end of the first chain is connected with the supporting plate, the sprockets are respectively arranged on the top surface and the bottom surface of the middle sliding plate, and the first chain is meshed with the sprockets.

Further, the first frame and the second frame are provided with the lifting device and the guiding device;

the lifting device comprises a lifting oil cylinder, a lifting bracket and a second chain, wherein the lifting bracket is arranged at the driving end of the lifting oil cylinder, and the lifting bracket is mutually perpendicular to the lifting oil cylinder;

one end of the second chain is fixedly connected with the lifting frame, and after the second chain bypasses the lifting frame, the other end of the second chain is fixedly connected with the lifting platform;

the guide device comprises a guide groove and a guide wheel, wherein the guide groove is arranged on one side, opposite to the two upright posts, of the first frame or the second frame, the guide groove is positioned on the upper part of the upright posts, and the lifting oil cylinder is arranged on the lower part of the upright posts;

the guide wheels vertically move along the lifting frame, the guide wheels are positioned at two ends of the lifting frame, and the guide wheels move in the guide grooves.

Further, the lifting feeding device with the anti-falling function further comprises a positioning device, wherein the positioning device comprises a positioning plate, a positioning assembly and an induction assembly;

the same upright post is provided with a plurality of positioning plates at equal intervals along the moving direction of the lifting platform, the positioning assembly is telescopically arranged on the lifting platform, and the induction assembly is arranged on the upright post;

the sensing component is used for sensing the moving position of the lifting platform and transmitting signals to the positioning component, and the positioning component stretches out to limit the movement of the lifting platform after receiving the signals.

The technical scheme provided by the utility model can comprise the following beneficial effects:

according to the utility model, the lifting frame is provided with the anti-falling device, the locking mechanism of the anti-falling device is connected with the lifting platform and the speed limiting mechanism, the lifting speed of the lifting platform is controlled to be within a safe production range through the speed limiting mechanism, when the lifting device is damaged, the lifting speed of the lifting platform is too high, the speed limiting mechanism drives the locking mechanism to take emergency braking to force the lifting platform to stop lifting, the falling of the lifting platform is prevented, the problem that the lifting feeding device in the prior art is free of the anti-falling mechanism is solved, if the lifting device driving the lifting frame to move is damaged in the using process, safety problems of personnel, equipment, products, materials and the like are easily caused, in addition, the transfer of the materials in the horizontal direction among the material warehouse is realized through the telescopic device, compared with the prior art, the transfer of the materials in the horizontal position is realized through synchronous rotation of the lifting roller shaft, the telescopic device is more flexible, and an additional roller shaft is not required to be arranged to bear the materials.

Drawings

FIG. 1 is a schematic view of an embodiment of a lifting and lowering feeding device with fall protection according to the present utility model;

FIG. 2 is a schematic illustration of the fall arrest device of the embodiment of FIG. 1;

FIG. 3 is a front view of the locking mechanism shown in FIG. 2;

FIG. 4 is a side view of the speed limiting mechanism shown in FIG. 2;

FIG. 5 is a schematic view of the telescopic device of the embodiment of FIG. 1;

FIG. 6 is a schematic view of the elevating device in the embodiment shown in FIG. 1;

FIG. 7 is an enlarged partial schematic view of A in FIG. 1;

FIG. 8 is an enlarged partial schematic view of B in FIG. 1;

wherein: 1-lifting frame, 10-upright post, 101-first fixing bracket, 102-first mounting seat, 11-first frame, 12-second frame and 13-connecting frame; 2-lifting device, 21-lifting cylinder, 22-lifting bracket and 23-second chain; the anti-falling device comprises a 3-anti-falling device, a 31-locking mechanism, a 311-guide rail, a 312-locking seat, a 313-U-shaped block, a 314-brake block, a 315-pull rod, a 316-wedge block, a 317-support, a 32-speed limiting mechanism, a 321-speed limiter, a 3211-speed limiting seat, a 3212-rope wheel, a 3213-cam, a 3214-swing arm assembly, a 3214 a-swing arm roller, a 3214 b-swing arm bracket, a 3214 c-swing arm, a 322-tensioner, a 323-transmission rope and a 3231-linkage rod; 4-telescopic devices, 41-supporting plates, 42-middle sliding plates, 421-middle sliding grooves, 43-upper sliding plates, 44-driving assemblies, 441-driving motors, 442-driving gears, 443-couplings, 45-chain assemblies, 451-chain installation seats and 452-sliding grooves; the device comprises a 5-lifting platform, a 51-supporting plate, a 52-side plate, a 521-guide wheel assembly, a 5211-first guide wheel, a 5212-second guide wheel and a 522-second mounting seat; 6-guiding devices, 61-guiding grooves and 62-guiding wheels; 7-positioning device, 71-positioning plate, 72-positioning component, 721-positioning rod, 722-motor, 73-sensing component, 731-ranging bar code, 732-reader and 733-connecting plate.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following describes a lifting feeding device with a falling prevention function according to an embodiment of the present utility model with reference to fig. 1 to 8, including a lifting frame 1, a lifting device 2, a falling prevention device 3, a telescopic device 4 and a lifting platform 5; the lifting platform 5 is fixedly connected with the lifting device 2, and the lifting device 2 is used for driving the lifting platform 5 to vertically move on the lifting frame 1; the telescopic device 4 is arranged on the lifting platform 5, materials are placed on the telescopic device 4, and the telescopic device 4 enables the materials to extend out or retract back to the lifting platform 5; the anti-falling device 3 is arranged on the lifting frame 1, the anti-falling device 3 comprises a locking mechanism 31 and a speed limiting mechanism 32, the locking mechanism 31 is connected with the lifting platform 5 and the speed limiting mechanism 32, and the speed limiting mechanism 32 is used for controlling the lifting speed of the lifting platform 5; when the descending speed of the lifting platform 5 is too high, the speed limiting mechanism 32 drives the locking mechanism 31 to brake emergently, so that the lifting platform 5 stops lifting.

In the utility model, when the lifting feeding device with the anti-falling function is applied to the transfer of materials in a material warehouse, the materials to be transferred are placed at the telescopic end of the telescopic device 4, the telescopic device 4 is fixedly arranged on the top surface of the lifting platform 5, generally, the goods shelves of the material warehouse are generally provided with a plurality of goods shelf layers, when the materials are placed on the lifting platform 5, the lifting device 2 drives the lifting platform 5 to ascend or descend to a specified goods shelf layer, and then the telescopic device 4 stretches out towards the direction of the goods shelf until the upper sliding plate 43 is erected on the goods shelf, so that the successful transfer of the materials is realized.

According to the utility model, the lifting frame 1 is provided with the anti-falling device 3, the locking mechanism 31 of the anti-falling device 3 is connected with the lifting platform 5 and the speed limiting mechanism 32, the lifting speed of the lifting platform 5 is controlled to be within a safe production range through the speed limiting mechanism 32, when the lifting device 2 is damaged to cause the falling speed of the lifting platform 5 to be too high, the speed limiting mechanism 32 drives the locking mechanism 31 to take emergency braking to force the lifting platform 5 to stop lifting, the falling of the lifting platform 5 is prevented, the problem that the lifting feeding device in the prior art does not have the anti-falling mechanism is solved, if the lifting device 2 driving the lifting frame 1 to move is damaged in the using process, the safety problems of personnel, equipment, products and materials are easily caused, in addition, the transfer of the materials in the horizontal direction among the material warehouse is realized through the telescopic device 4, and compared with the prior art, the telescopic device 4 adopts the synchronous rotation of the lifting roller shaft to realize the transfer of the materials in the horizontal position, the flexibility is further provided, and no additional roller shaft bearing materials are required.

The lifting frame 1 comprises a first frame 11, a second frame 12 and a connecting frame 13, wherein the connecting frame 13 connects the first frame 11 and the second frame 12; the first frame 11 and the second frame 12 comprise the anti-falling device 3 and two upright posts 10, and the locking mechanism 31 and the speed limiting mechanism 32 are respectively positioned on two mutually perpendicular side surfaces of the same upright post 10.

Specifically, the connecting frame 13 is mounted on top of the first frame 11 and the second frame 12, and is used for connecting the first frame 11 and the second frame 12, a moving space of the lifting platform 5 is formed between the first frame 11, the second frame 12 and the connecting frame 13, and the lifting platform 5 is driven to move in the moving space by the lifting device 2; in order to ensure that when the lifting feeding device adopts emergency braking, the left side and the right side of the lifting platform 5 can be kept balanced and stable, anti-falling devices 3 are arranged on the two sides of the lifting frame 1, namely, the anti-falling devices 3 are arranged on the first frame 11 and the second frame 12, the locking mechanism 31 and the speed limiting mechanism 32 are respectively positioned on the two sides of the same upright post 10, which are mutually perpendicular, the locking mechanism 31 is positioned between the speed limiting mechanism 32 and the lifting platform 5 and used for connecting the lifting platform 5 and the speed limiting mechanism 32, and the locking mechanism 31 is used for locking the lifting platform 5 through the driving of the speed limiting mechanism 32 to the locking mechanism 31.

Further, the locking mechanism 31 includes a guide rail 311, a locking seat 312, a U-shaped block 313, a brake block 314 and a pull rod 315; the guide rail 311 is installed along the vertical direction of the upright 10, and the locking seat 312 moves along the guide rail 311; the U-shaped block 313 is arranged on the locking seat 312, and an opening of the U-shaped block 313 is opposite to the guide rail 311; one end of a pull rod 315 is arranged at the top of the locking seat 312, and the other end of the pull rod 315 is fixedly connected with the brake block 314; the pull rod 315 moves upwards to drive the brake block 314 to move in the opening of the U-shaped block 313, so that the brake block 314 locks the guide rail 311.

Specifically, the opening of the U-shaped block 313 is opposite to the guide rail 311, the positions of the top and the bottom of the locking seat 312 opposite to the guide rail 311 are provided with U-shaped grooves, the guide rail 311 penetrates through the U-shaped grooves and the U-shaped block 313, the locking seat 312 moves along the guide rail 311, one end of the pull rod 315 is mounted at the top of the locking seat 312, the other end of the pull rod 315 is fixedly connected with the brake block 314, when the pull rod 315 is pulled upwards, the brake block 314 is driven to move upwards, the opening of the U-shaped block 313 is reduced, the brake block 314 is further enabled to lock the guide rail 311, the locking mechanism 31 stops moving, and at the moment, the lifting platform 5 fixedly connected with the locking mechanism 31 stops moving.

Wedge-shaped blocks 316 are arranged at two ends of the opening of the U-shaped block 313, the number of the brake blocks 314 is two, and the two brake blocks 314 are respectively arranged on the two wedge-shaped blocks 316; the pull rod 315 is connected with the two brake blocks 314 through a support 317, and a return spring is arranged between the support 317 and the top plate of the locking seat 312; a guide rail 311 moving space is formed between the two brake blocks 314, and the pull rod 315 moves upwards to drive the brake blocks 314 to move along the wedge-shaped blocks 316, so that the guide rail 311 moving space is reduced.

Specifically, wedge blocks 316 are arranged at two ends of the opening of the U-shaped block 313, the two wedge blocks 316 are oppositely arranged, so that the opening of the U-shaped block 313 is gradually reduced from bottom to top, when the pull rod 315 drives the support 317 to move upwards, the two wedge blocks 316 play a role in limiting and guiding the movement of the brake blocks 314, so that the two brake blocks 314 move upwards and move towards the direction of the clamping guide rail 311 in opposite directions, the moving space of the guide rail 311 is reduced, and the brake blocks 314 clamp the guide rail 311 tightly, thereby realizing emergency braking. Meanwhile, the reset spring deforms under the action of the support 317, one end of the reset spring abuts against the top plate of the locking seat 312, and further reaction force is provided to prevent the support 317 from moving upwards, so that the emergency braking effect is prevented from being influenced by too fast rising of the support 317, elastic braking is further realized, in addition, the reset spring also has the reset effect, and when the pull rod 315 is loosened, the reset spring stretches to push the support 317 to the original position, so that the reset effect is realized.

Still further, the speed limiting mechanism 32 includes a speed limiter 321, a tensioner 322, and a transmission rope 323; the speed limiter 321 is positioned at the top of the upright post 10, the tensioner 322 is positioned at the bottom of the upright post 10, and the conveying rope 323 is sleeved on the speed limiter 321 and the tensioner 322; the conveying rope 323 is provided with a link lever 3231, and the link lever 3231 is fixedly connected with the pull rod 315.

Specifically, the speed limiter 321 is installed at the top of the upright 10, the tensioner 322 is installed at the bottom of the upright 10, and the tensioner 322 guides and tightens the transmission rope 323 to be in an optimal tightening state all the time. In addition, the conveying rope 323 is provided with a linkage rod 3231 and a pull rod 315 which are fixedly connected, when the descending speed of the lifting platform 5 is too high, the speed limiter 321 is braked urgently, so that the conveying rope 323 stops moving, the pull rod 315 moves upwards, at the moment, because the locking mechanism 31 is fixedly connected with the lifting platform 5, the locking seat 312 is subjected to downward pulling force, the pull rod 315 moves upwards relative to the locking seat 312, the brake block 314 is driven to move along the wedge block 316, the moving space of the guide rail 311 is further reduced, and the brake block 314 holds the guide rail 311 tightly, so that emergency braking is realized.

The speed limiter 321 comprises a speed limiting seat 3211, a rope pulley 3212, a cam 3213 and a swing arm assembly 3214; the sheave 3212 and the cam 3213 are mounted on a speed-limiting seat 3211 by a sheave shaft; the swing arm assembly 3214 comprises a swing arm roller 3214a, a swing arm support 3214b and a swing arm 3214c, the swing arm support 3214b is fixedly arranged on the speed limiting seat 3211, and the swing arm 3214c is rotatably arranged between the swing arm support 3214b and a side plate of the speed limiting seat 3211; the swing arm roller 3214a is connected to the swing arm 3214c, and a circumferential side surface of the swing arm roller 3214a is tangential to a circumferential side surface of the cam 3213. The lifting of the lifting platform 5 drives the rope pulley 3212 to rotate around a rope pulley shaft, the rope pulley 3212 rotates to drive the cam 3213 to rotate, and the cam 3213 rotates to drive the swing arm roller 3214a to rotate due to the fact that the cam 3213 is tangent to the circumferential side face of the swing arm roller 3214a, so that the swing arm 3214c is driven to rotate between the swing arm support 3214b and the side plate of the speed limiting seat 3211, and the running speed of the lifting platform 5 is controlled not to exceed the safe production range through inertia moment generated by the swing arm 3214c when the cam 3213 rotates, so that the production safety is guaranteed.

Further, the telescopic device 4 comprises a support plate 41, a middle sliding plate 42, an upper sliding plate 43, a driving assembly 44 and a chain assembly 45; the supporting plate 41 is fixedly arranged on the lifting platform 5, and the driving assembly 44 drives the middle sliding plate 42 to move along the length direction of the supporting plate 41; the chain assembly 45 drives the upper sled 43 along the length of the middle sled 42.

The lifting feeding device with the anti-falling function is applied to a material warehouse, the telescopic device 4 is fixedly arranged on the lifting platform 5, when materials placed on the lifting platform 5 are required to be transferred to the material warehouse, the driving assembly 44 drives the middle sliding plate 42 to extend out of the lifting platform 5, and meanwhile, the chain assembly 45 drives the upper sliding plate 43 to extend out until the upper sliding plate 43 is erected on the material warehouse, so that the transfer of the materials is realized. It should be noted that, the lifting platform 5 includes a support plate 51 and two side plates 52, the support plate 51 is fixedly installed between the two side plates 52, the two side plates 52 move vertically along the first frame 11 and the second frame 12 respectively, and the support plate 41 of the telescopic device 4 is fixedly installed on the support plate 51.

The drive assembly 44 includes a drive motor 441, a drive gear 442, and a drive rack; the driving rack is fixedly connected with the middle sliding plate 42, the driving motor 441 is arranged at the bottom of the supporting plate 41, the driving gear 442 is arranged at the driving end of the driving motor 441, and the driving rack is meshed with the driving gear 442; the chain assembly 45 includes a first chain having one end connected with the upper slider 43 and the other end connected with the support plate 41, and a plurality of sprockets respectively mounted on the top and bottom surfaces of the middle slider 42, the first chain being engaged with the sprockets.

As shown in fig. 5, the number of the supporting plates 41 is two, the two supporting plates 41 are fixedly installed on the top surface of the lifting platform 5 side by side through the mounting plates, the driving gear 442 is installed between the two supporting plates 41, and in order to ensure the sliding stability of the middle sliding plate 42, the driving gear 442 is meshed with a plurality of driven gears along the length direction of the supporting plates 41, one side of the middle sliding plate 42 opposite to the supporting plates 41 is provided with a middle sliding groove 421, the driving rack is fixedly installed at the bottom of the middle sliding groove 421, the middle sliding plate 42 is installed on the top of the supporting plates 41 through the middle sliding groove 421, and meanwhile, the middle sliding plate 42 is moved on the supporting plates 41 through the meshed transmission of the driving rack, the driving gear 442 and the driven gears.

Specifically, the top surface and the bottom surface of middle part slide 42 all are equipped with spout 452, and the both sides of two backup pads 41 are equipped with chain mount pad 451, and first chain one end and upper portion slide 43 fixed connection, the other end are installed in chain mount pad 451, and first chain removes along spout 452, has improved first chain sliding stability.

In addition, in order to ensure the stability and balance of the movement of the material placed on the telescopic device 4, the number of telescopic devices 4 is plural, preferably, in this embodiment, the number of telescopic devices 4 is two, and the telescopic devices are respectively installed on two sides of the lifting platform 5, it should be noted that the two telescopic devices 4 share a driving motor 441, and the driving gears 442 of the two telescopic devices 4 are connected through the coupling 443, so as to ensure the rotation synchronism of the driving gears 442.

Further, the first frame 11 and the second frame 12 are provided with a lifting device 2 and a guiding device 6; the lifting device 2 comprises a lifting oil cylinder 21, a lifting support 22 and a second chain 23, wherein the lifting support 22 is arranged at the driving end of the lifting oil cylinder 21, and the lifting support 22 is mutually perpendicular to the lifting oil cylinder 21; one end of the second chain 23 is fixedly connected with the lifting frame 1, and after the second chain 23 bypasses the lifting frame 22, the other end of the second chain 23 is fixedly connected with the lifting platform 5; the guiding device 6 comprises a guiding groove 61 and a guiding wheel 62, the guiding groove 61 is arranged on one side of the first frame 11 or the second frame 12 opposite to the two upright posts 10, the guiding groove 61 is positioned on the upper part of the upright posts 10, and the lifting oil cylinder 21 is arranged on the lower part of the upright posts 10; the guide wheels 62 vertically move along the lifting frame 1, the guide wheels 62 are positioned at two ends of the lifting frame 22, and the guide wheels 62 move in the guide grooves 61.

In order to ensure the stability of the lifting device 2 when driving the lifting platform 5 to move, the lifting device 2 and the guiding device 6 are respectively arranged on two sides of the lifting frame 11, the lifting device 2 and the guiding device 6 on the same side are mutually matched, and particularly, the guiding grooves 61 are formed in one side of the first frame 11 and the second frame 12 opposite to the two upright posts 10, and the guiding wheels 62 are arranged at two ends of the lifting frame 22 so that the guiding wheels 62 longitudinally move along the guiding grooves 61, so that the lifting frame 22 moves more stably and has guiding performance, and the balance of the lifting frame 22 when moving is ensured.

Specifically, the cylinder body of the lifting cylinder 21 is fixedly installed with the lifting frame 1, the telescopic rod of the lifting cylinder 21 is fixedly installed with the lifting frame 22, meanwhile, one end of the second chain 23 is fixedly connected with the lifting platform 5 through the second mounting seat 522 on the lifting platform 5, the other end of the second chain 23 bypasses the lifting frame 22 and then is fixedly connected with the lifting frame 1 through the first mounting seat 102 on the first fixing support 101, when the lifting cylinder 21 is started, the telescopic rod moves in the vertical direction to drive the lifting frame 22 to move in the vertical direction, and then the second chain 23 fixedly connected with the lifting platform 5 is driven to move, and in addition, in order to ensure the balance when the lifting device 2 drives the lifting platform 5 to move, lifting devices 2 are arranged on two sides of the lifting frame 1. In addition, the bottom of crane 1 is equipped with the pulley, and the setting of pulley is convenient for the removal of crane 1.

It should be noted that, to further ensure the stability of lifting the lifting platform 5 and reduce the friction between the lifting platform 5 and the upright 10 during the moving process, a guide wheel assembly 521 is disposed on the side plate 52 of the lifting platform 5, the guide wheel assembly 521 includes a first guide wheel 5211 and a second guide wheel 5212, the rotation directions of the first guide wheel 5211 and the second guide wheel 5212 are perpendicular to each other, and in addition, the first guide wheel 5211 and the second guide wheel 5212 both rotate along the length direction of the upright 10.

Further, the lifting feeding device with the anti-falling function further comprises a positioning device 7, wherein the positioning device 7 comprises a positioning plate 71, a positioning assembly 72 and a sensing assembly 73;

a plurality of positioning plates 71 are equidistantly distributed on the same upright post 10 along the moving direction of the lifting platform 5, positioning assemblies 72 are telescopically arranged on the lifting platform 5, and sensing assemblies 73 are arranged on the upright post 10;

the sensing component 73 is used for sensing the moving position of the lifting platform 5 and transmitting a signal to the positioning component 72, and the positioning component 72 stretches out to limit the lifting platform 5 to move after receiving the signal.

When being applied to the stock house with this lift material feeding unit, the stock house generally has the multilayer goods shelves, sets up positioner 7 on this lift material feeding unit for when lifting platform 5 goes up and down to the relevant position of goods shelves, lifting platform 5 can be positioned in the place ahead of goods shelves, and the goods on the lifting platform 5 of being convenient for can carry to the goods shelves of stock house in. Specifically, the positioning component 72 includes a positioning rod 721 and a motor 722, the motor 722 drives the positioning rod 721 to extend or retract, the sensing component 73 includes a ranging bar code 731, a code reader 732 and a connecting plate 733, the code reader 732 is fixedly connected with the lifting platform 5 through the connecting plate 733, the code reader 732 is driven to move along the ranging bar code 731 along with the movement of the lifting platform 5, the code reader 732 reads positioning information about the lifting platform 5 on the ranging bar code 731 and gives the information to the positioning component 72, and the positioning component 72 receives signals to perform corresponding actions.

Other constructions, etc. and operations of a lifting and lowering feeding device with fall protection according to an embodiment of the present utility model are known to those skilled in the art, and will not be described in detail herein.

In the description herein, reference to the term "embodiment," "example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. Lifting feeding device with anti-falling function, which is characterized in that: comprises a lifting frame, a lifting device, a falling-preventing device, a telescopic device and a lifting platform;

when the descending speed of the lifting platform is too high, the speed limiting mechanism drives the locking mechanism to emergently brake, so that the lifting platform stops lifting;

the lifting frame comprises a first frame, a second frame and a connecting frame, wherein the connecting frame is connected with the first frame and the second frame;

the first frame and the second frame comprise the anti-falling device and two upright posts, and the locking mechanism and the speed limiting mechanism are respectively positioned on two mutually perpendicular side surfaces of the same upright post;

the locking mechanism comprises a guide rail, a locking seat, a U-shaped block, a brake block and a pull rod;

2. The lifting feeding device with anti-falling function according to claim 1, wherein: wedge-shaped blocks are arranged at two ends of the opening of the U-shaped block, the number of the two brake blocks is two, and the two brake blocks are respectively arranged on the two wedge-shaped blocks;

3. The lifting feeding device with a fall protection function according to claim 2, wherein: the speed limiting mechanism comprises a speed limiter, a tensioner and a conveying rope;

4. The lifting feeding device with anti-falling function according to claim 3, wherein: the speed limiter comprises a speed limiting seat, a rope pulley, a cam and a swing arm assembly;

5. The lifting feeding device with anti-falling function according to claim 1, wherein: the telescopic device comprises a supporting plate, a middle sliding plate, an upper sliding plate, a driving assembly and a chain assembly;

6. The lifting feeding device with anti-falling function according to claim 5, wherein: the driving assembly comprises a driving motor, a driving gear and a driving rack;

7. The lifting feeding device with anti-falling function according to claim 1, wherein: the lifting device and the guiding device are arranged on the first frame and the second frame;

8. The lifting feeding device with anti-falling function according to claim 7, wherein: the positioning device comprises a positioning plate, a positioning assembly and an induction assembly;