CN213922610U - Stacking machine - Google Patents

Abstract

The utility model provides a stacker, it includes the stand, along the cargo carrying device that the stand goes up and down, be fixed in base, running gear, elevating gear, disconnected rope detection device and the PLC controller of stand lower extreme, running gear includes walking wheel, supporting wheel and walking motor, elevating gear includes wire rope and coiling wire rope's reel, disconnected rope detection device includes first detection mechanism, and first detection mechanism includes the support frame and locates the mechanical contact switch on the support frame, and mechanical contact switch is close to the reel setting, and when the wire rope took place not hard up or breaks when the reel, the wire rope contact triggered mechanical contact switch, PLC controller received signal and control walking motor stop. By the arrangement, the condition that the steel wire rope is broken or loosened can be detected in time, the stacker is controlled to stop working in time, and safety accidents are avoided.

Description

Stacking machine

Technical Field

The utility model relates to an intelligent storage technical field especially relates to a stacker.

Background

The stacker is very important automatic handling equipment in a stereoscopic warehouse, and is mainly used for running along a fixed track in a roadway of a high-rise goods shelf warehouse and taking out goods positioned at a specified roadway port and storing the goods into a specified goods shelf lattice; or conversely, the goods in the specified goods shelf grids are taken out and conveyed to the specified road junction, and the corresponding warehouse entry and exit operation is completed. The safety problem of stacker is also more and more taken into account by people, and after stacker in stereoscopic warehouse used for a period of time, its wire rope appeared the condition of being elongated easily, leads to fatigue stress accumulation, and when fatigue stress accumulation to certain extent, wire rope will break off, and artifical or the machine did not detect wire rope fracture this moment, and the continuation operation stacker often can lead to the emergence of accident.

Therefore, it is necessary to design a stacker to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stacker with disconnected rope detects function.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a stacker, its includes the stand, along the cargo carrying device of stand lift, be fixed in base, running gear, elevating gear, disconnected rope detection device and the PLC controller of stand lower extreme, running gear includes walking wheel, supporting wheel and walking motor, elevating gear includes wire rope and coiling wire rope's reel, disconnected rope detection device includes first detection mechanism, and first detection mechanism includes the support frame and locates the mechanical contact switch on the support frame, and mechanical contact switch is close to the reel setting, and when the wire rope took place to become flexible or split on the reel, the wire rope contact triggered mechanical contact switch, PLC controller received signal and control walking motor stop.

As a further improved technical solution of the present invention, the support frame includes a first support, a second support and a third support which are arranged in sequence from bottom to top, the first support is L-shaped, the second support includes a vertical portion and an inclined portion which are connected to the first support, and the inclined portion and the included angle α of the horizontal direction are preferably 30-60 °.

As the utility model discloses further modified technical scheme, be equipped with the mounting hole on first support and the second support, first support and second support pass through bolt and mounting hole fixed, and the mounting hole of first support or second support is vertical waist type hole, second support accessible height-adjusting about vertical waist type hole.

As the utility model discloses further modified technical scheme, the third support is two, locates the both sides of second support respectively, mechanical contact switch also is two, corresponds respectively and locates on the third support, and mechanical contact switch includes the body and locates the spring drive portion on the body, and two mechanical contact switch's spring drive portion sets up and all perpendicular to wire rope's extending direction relatively.

As a further improved technical scheme of the utility model, the length sum of two spring drive portions is greater than the width of reel.

As the utility model discloses further modified technical scheme, disconnected rope detection device still includes second detection mechanism, second detection mechanism is close to the junction with the device that carries cargo at wire rope both ends.

As the utility model discloses further modified technical scheme, second detection mechanism includes the elastic component of being connected with wire rope and locates the limit switch of elastic component below, the elastic component is compression state.

As the utility model discloses further modified technical scheme, the spring in elasticity portion includes the sleeve and locates the sleeve, wire rope's tip and muffjoint, cargo carrying device is including the platform that carries cargo that is equipped with bottom plate and curb plate, the inside horizontal projection butt board of curb plate, set up the through-hole that supplies wire rope to pass on the butt board, spring butt between sleeve and butt board.

As the utility model discloses further modified technical scheme, limit switch is gyro wheel pendulum rod type switch, and the tip of its gyro wheel pendulum rod is located telescopic below.

As the utility model discloses further modified technical scheme, elevating gear is still including the drive reel pivoted elevator motor works as when wire rope splits, the PLC controller control elevator motor stop work.

According to the above technical scheme, the utility model discloses a stacker is through setting up first detection mechanism, is close to the reel setting with mechanical contact switch, and when the wire rope took place not hard up or the fracture on the reel, the wire rope contact triggered mechanical contact switch, PLC controller received signal and control walking motor stop. By the arrangement, the condition that the steel wire rope is broken or loosened can be detected in time, the stacker is controlled to stop working in time, and safety accidents are avoided.

Drawings

Fig. 1 is a structural diagram of the stacker of the present invention.

Fig. 2 is a structural diagram of the second positioning mechanism and the third positioning mechanism in fig. 1.

Fig. 3 is a block diagram of the cargo carrying device of fig. 1.

Fig. 4 is a side view of the cargo carrier of fig. 3.

FIG. 5 is a block diagram of the photosensor of FIG. 3.

FIG. 6 is a diagram showing the cooperation between the first detecting mechanism and the winding drum of the stacker of the present invention.

Fig. 7 is a structural diagram of the first detecting mechanism of the stacker of the present invention.

Fig. 8 is a view showing the first detecting means of fig. 7 in cooperation with the spool.

Fig. 9 is a structural diagram of a second detecting mechanism of the stacker of the present invention.

Fig. 10 is a view showing the second detecting means and the elastic portion of fig. 9.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, the present invention provides a stacker 100, which comprises a base 10, a column 20, a traveling device 30, a traveling positioning device 40, a cargo carrying device 50, a lifting device 60, a rope breakage detecting device, a ground rail 80 and a sky rail. Base 10 extends along ground rail 80 length direction, the utility model discloses in, stand 20 is the double column, including locating front column and the rear column on base 10 side by side.

The traveling device 30 includes a traveling wheel 31, a support wheel 32, and a traveling motor 33 for driving the traveling wheel to travel. The walking wheels 31 comprise lower walking wheels positioned on the ground rail 80 and upper walking wheels positioned on the top rail, and the supporting wheels comprise lower supporting wheels positioned on the ground rail 80 and upper supporting wheels positioned on the top rail. The walking motor 33 is fixed at one end of the base 10 and is in power connection with the walking wheel 31. In other embodiments, only the ground rail can be arranged according to actual needs, and correspondingly, the walking device only comprises the walking wheels matched with the ground rail and the supporting wheels.

Referring to fig. 2, the walking and positioning device 40 includes a first positioning mechanism 41, a second positioning mechanism 42, and a third positioning mechanism 43 for positioning the stacker 100. The priority of the three positioning mechanisms is from high to low: a first positioning mechanism 41, a second positioning mechanism 42, and a third positioning mechanism 43.

Specifically, the first positioning mechanism 41 includes a distance sensor 411 and a reflector 412 opposite to the distance sensor 411, and the distance sensor 411 is used for measuring the moving distance of the stacker 100. The distance sensor 411 is an optical distance sensor, which includes a transmitting unit, a receiving unit, and a data processing unit. The distance sensor 411 is disposed at one end of the base 10, and the distance sensor 411 and the light reflection plate 412 are disposed along the traveling direction of the stacker 100. The light signal emitted by the emitting unit enters the receiving unit after being reflected by the reflecting plate 412, the light signal is converted by the data processing unit and then transmitted to the PLC controller, and the PLC controller controls the walking motor to stop or start according to the received signal.

Referring to fig. 2, the second positioning mechanism 42 includes a photoelectric sensor 421 disposed on the base 10 and a position mark 422 disposed on the ground rail 80 and matched with the photoelectric sensor 421. The two position marks 422 are respectively arranged at the positions close to the two ends of the ground rail 80, and the photoelectric sensor 421 is arranged on the side surface of the base 10. The first positioning mechanism 41 has a higher priority than the second positioning mechanism 42, and thus, when the first positioning mechanism 41 fails, the PLC controller controls the second positioning mechanism 42 to operate. Specifically, when the first positioning mechanism 41 fails, the stacker 100 continues to travel, the photoelectric sensor 421 detects the position mark 422 and transmits a signal to the PLC controller, and the PLC controller controls the travel motor 33 to stop.

Referring to fig. 2, the third positioning mechanism 43 includes two limit switches 431 fixed on the ground rail 80 and a protrusion 432 disposed below the base 10, where the two limit switches 431 are respectively disposed at positions of the ground rail 80 near two ends and are closer to the end of the ground rail 80 than the position mark 422. The third positioning mechanism 43 is located outside the second positioning mechanism 42 in the traveling direction of the stacker 100, and the first positioning mechanism 41 and the second positioning mechanism 42 have higher priority than the third positioning mechanism 43. When the first positioning mechanism 41 and the second positioning mechanism 42 fail, the stacker crane 100 continues to run and automatically triggers the third positioning mechanism 43 to work. Specifically, when the stacker 100 travels to the limit switch 431, the protruding portion 432 touches and activates the limit switch 431, and the limit switch 431 transmits a signal to the PLC controller and controls the traveling motor 33 to stop.

Stacker 100 still includes buffer gear 90, buffer gear 90 is including two elastic buffer spare of locating base 10 both ends and two baffles that are located ground rail 80 both sides, the baffle sets up with the buffer spare relatively, when first positioning mechanism 41, second positioning mechanism 42 and third positioning mechanism 43 all break down, stacker 100 continues to travel, buffer spare and baffle butt play the cushioning effect in stacker 100 the place ahead or rear, prevent that stacker 100 from because of the damage that causes of out of control striking to warehouse wall or other equipment.

Referring to fig. 1, 3 and 4, the cargo carrying device 50 is disposed between the front and rear vertical posts 20 and moves up and down along the vertical posts 20, and includes a cargo carrying platform 51, a fork 52 disposed on the cargo carrying platform 51, a telescopic motor 53 for driving the fork 52 to extend and retract, a limiting mechanism 54 and a detecting mechanism 55. The cargo bed 51 specifically includes a bottom plate 511 and side plates 512 disposed on both sides of the bottom plate 511. The cargo bed 51 is provided with two cargo spaces 513 side by side, and each cargo space 513 is provided with a fork 52.

The stop mechanism 54 is used to detect whether the cargo 200 is off the cargo space 513. Specifically, the limit mechanism 54 includes a plurality of limit switches 541 and an installation rack 542 for installing the limit switches 541. Preferably, the number of the limit switches 541 corresponding to each loading position 513 is 4, and 4 limit switches 541 are respectively disposed on two sides of each loading position 513. When the goods 200 deviate and touch the limit switch 541 in the telescopic process of the fork 52, the limit switch 541 transmits a signal to the PLC controller to control the telescopic motor 53 to stop working, and the fork 52 stops telescopic. If the goods 200 deviate and touch the limit switch 541 in the running process of the stacker 100, the limit switch 541 transmits a signal to the PLC controller to control the walking motor 33 to stop working, and the stacker 100 stops moving. By the arrangement, the action is stopped in time, the goods 200 are prevented from falling, and the safety of the stacker 100 in the operation process is greatly improved.

The detection mechanism 55 is used for detecting the position information of the cargo 200 on the cargo carrying platform 513 in real time, the detection mechanism 55 specifically comprises a plurality of pairs of photoelectric sensors 551 and a mounting rack 552 for mounting the photoelectric sensors 551, the photoelectric sensors 551 are correlation type photoelectric sensors, and each pair of photoelectric sensors 551 is respectively arranged on two sides of each cargo carrying platform 513. In this embodiment, 3 pairs of photoelectric sensors 551 are correspondingly disposed on two sides of each cargo space 513. Referring to fig. 4, each pair of photosensors 551 has different installation heights, and the opposite lines of the two photosensors 551 are inclined and pass through the position of the cargo 200. So set up, be applicable to the detection of the goods of different sizes, increased photoelectric sensor 551's detection range. Preferably, the mounting height ratio of each pair of photosensors 551 is 1:2 to 1: 3.

Referring to fig. 1 and 5, the cargo carrying device 50 further includes a photoelectric sensor 56 disposed on the cargo carrying platform 51, and the photoelectric sensor 56 is used for detecting the lifting position of the cargo carrying device. Two photoelectric sensors 56 are respectively arranged in the middle of two sides of the bottom plate 511 of the cargo platform 51. Further, in order to detect the lifting position of the cargo platform 51, a reflector 572 is disposed on one side of the cargo platform 51, and a distance sensor 571 is disposed at a position on one side of the base 10 corresponding to the reflector 572 in a vertical direction.

Referring to fig. 1, 3 and 6, the lifting device 60 includes a guide rail 61 disposed on the upright post 20, a guide wheel 62 and a wire rope 63 disposed on the cargo bed 51, a winding drum 64 for winding the wire rope 63, and a lifting motor 65 for driving the winding drum 64 to rotate. If the goods deviate and touch the limit switch 541 in the process of lifting the goods carrying device 50, the limit switch 541 transmits a signal to the PLC controller to control the lifting motor 65 to stop working, the goods carrying device 50 stops moving, and the goods are prevented from falling off in the lifting process.

Referring to fig. 6 to 10, the rope breakage detecting device includes a first detecting mechanism 71 and a second detecting mechanism 72. The first detection mechanism 71 includes a support frame 711 and a mechanical contact switch 712 disposed on the support frame 711, the mechanical contact switch 712 is disposed near the winding drum 64, and when the wire 63 on the winding drum 64 is loosened or broken, the wire 63 contacts and triggers the mechanical contact switch 712. Specifically, the supporting frame 711 includes a first supporting frame 713, a second supporting frame 715 and a third supporting frame 716, which are sequentially arranged from bottom to top, the first supporting frame 713 is L-shaped, the second supporting frame 715 includes a vertical portion and an inclined portion connected to the first supporting frame 713, and an included angle α between the inclined portion and the horizontal direction is preferably 30-60 °. Be equipped with the mounting hole on first support 713 and the second support 715, first support 713 and second support 715 are fixed through bolt and mounting hole, and the mounting hole of first support 713 and second support 715 is vertical waist type hole, the utility model discloses in, mounting hole 714 on the second support 715 is vertical waist type hole, height-adjusting about the vertical waist type hole 714 of second support accessible, and then the distance between adjustment mechanical contact switch 712 and reel 64.

The number of the third supports 716 is two, and the two third supports 716 are respectively disposed on two sides of the second support 715, and the two mechanical contact switches 712 are respectively disposed on the third supports 716. The utility model discloses in, mechanical contact switch 712 includes the body and locates the spring drive portion on the body, and two mechanical contact switch 712's spring drive portion sets up relatively and equal perpendicular to wire rope 63's extending direction. The sum of the lengths of the two spring drives is greater than the width of the spool 64, i.e.: the detection ranges of the two spring drivers cover one side of the drum 64, so that the breakage of the wire 63 at any position on the drum 64 can be detected by the mechanical contact switch 712.

Referring to fig. 9 and 10, the second detecting mechanism 72 includes an elastic portion 721 connected to the wire 63 and a limit switch 722 disposed below the elastic portion 721, and the elastic portion 721 is in a compressed state. The second detection mechanism 72 is located near the connection of the two ends of the wire 63 to the cargo carrying device 50. Both ends of the wire rope 63 are connected to the side plates 512 of the cargo bed 51, respectively. Specifically, the elastic portion 721 includes a sleeve 723 and a spring 724 disposed in the sleeve 723, an end of the steel wire 63 is connected to the sleeve 723, the side plate 512 protrudes inward and laterally to form a contact plate 514, a through hole for the steel wire 63 to pass through is formed in the contact plate 514, and the spring 724 is in a compressed state and is in contact with a space between the sleeve 723 and the contact plate 514. The limit switch 722 is a roller swing rod type switch, and the end of a roller swing rod 725 of the limit switch is positioned below the sleeve 723. When the steel wire 63 is broken, the elastic part 721 moves downwards at the moment of breaking and triggers the limit switch 722, and the PLC controller receives a signal and controls the traveling motor 33 and the lifting motor 65 to stop, thereby preventing further damage.

To sum up, the utility model discloses a stacker carries out the accurate positioning through setting up first positioner, through setting up second positioner, third positioner in order to prevent when first positioner breaks down that the stacker is out of control, ensures the stacker walking at controllable range, has improved the security of stacker operation in-process greatly. Additionally the utility model discloses a set up stop gear and detection mechanism on carrying cargo bed, in time detect the position and the state of carrying cargo bed on the goods, prevent that the goods from dropping, reduced transportation loss and safe risk. The utility model discloses still be used for detecting the first detection mechanism and the second detection mechanism of disconnected rope through the setting, diversified control wire rope in time stops the action of stacker when disconnected rope, further reduces the loss, has improved the safe in utilization of stacker.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present specification should be based on the technical personnel in the technical field, and although the present specification has described the present invention in detail with reference to the above embodiments, the person of ordinary skill in the art should understand that the person of ordinary skill in the art can still modify the present invention or substitute the same, and all the technical solutions and modifications that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a stacker, its includes the stand, along the cargo carrying device of stand lift, be fixed in base, running gear, elevating gear, disconnected rope detection device and the PLC controller of stand lower extreme, running gear includes walking wheel, supporting wheel and walking motor, elevating gear includes wire rope and coiling wire rope's reel, its characterized in that: the rope breakage detection device comprises a first detection mechanism, the first detection mechanism comprises a support frame and a mechanical contact switch arranged on the support frame, the mechanical contact switch is arranged close to the winding drum, when a steel wire rope on the winding drum is loosened or broken, the steel wire rope is in contact with and triggers the mechanical contact switch, and the PLC receives signals and controls the walking motor to stop.

2. The stacker according to claim 1, wherein: the support frame includes first support, second support and the third support that sets gradually from bottom to top, and first support is L shape, and the second support includes vertical portion and the rake of being connected with first support, and the rake is 30-60 with the contained angle alpha of horizontal direction.

3. The stacker according to claim 2, wherein: the first support and the second support are provided with mounting holes, the first support and the second support are fixed through bolts and the mounting holes, the mounting holes of the first support or the second support are vertical waist-shaped holes, and the second support can be adjusted in height up and down through the vertical waist-shaped holes.

4. The stacker according to claim 2, wherein: the mechanical contact switches comprise bodies and spring driving parts arranged on the bodies, and the spring driving parts of the two mechanical contact switches are arranged oppositely and are all perpendicular to the extending direction of the steel wire rope.

5. The stacker according to claim 4, wherein: the sum of the lengths of the two spring driving parts is larger than the width of the winding drum.

6. The stacker according to claim 1, wherein: the rope breakage detection device further comprises a second detection mechanism, and the second detection mechanism is close to the connection parts of the two ends of the steel wire rope and the cargo carrying device.

7. The stacker according to claim 6, wherein: the second detection mechanism comprises an elastic part connected with the steel wire rope and a limit switch arranged below the elastic part, and the elastic part is in a compressed state.

8. The stacker according to claim 7, wherein: the elastic part comprises a sleeve and a spring arranged in the sleeve, the end part of the steel wire rope is connected with the sleeve, the cargo carrying device comprises a cargo carrying platform provided with a bottom plate and a side plate, the side plate transversely extends inwards to form a butt joint plate, a through hole for the steel wire rope to pass through is formed in the butt joint plate, and the spring is in butt joint between the sleeve and the butt joint plate.

9. The stacker according to claim 8, wherein: the limit switch is a roller swing rod type switch, and the end part of the roller swing rod is positioned below the sleeve.

10. The stacker according to claim 1, wherein: the lifting device further comprises a lifting motor for driving the winding drum to rotate, and when the steel wire rope is broken, the PLC controls the lifting motor to stop working.

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