CN211034108U

CN211034108U - Stacking machine

Info

Publication number: CN211034108U
Application number: CN201921625522.5U
Authority: CN
Inventors: 张剑; 向小波; 卢建旭; 谢忠全
Original assignee: Broad Homes Industrial Tianjin Co ltd
Current assignee: Broad Homes Industrial Tianjin Co ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-07-17
Anticipated expiration: 2029-09-26

Abstract

The utility model relates to a stacker, including support, operation platform, drive assembly, control switch and gravity piece. Through setting up foretell stacker, the gravity piece hangs in the operation platform top, and control switch's trigger part is triggered through the gravity piece, the tension of gravity piece to trigger part is unchangeable, control switch then is in first state all the time, and rise to contact with the gravity piece when operation platform, and the gravity piece supports and presses in operation platform in addition, the gravity piece can disappear to trigger part this moment, thereby then make control switch disconnection drive assembly and external power supply's be connected, operation platform stops rising. Compared with the existing mode that the travel switch is arranged at the ascending track of the operating platform, the operating platform cannot be damaged due to collision caused by deflection in the ascending process, and meanwhile, the gravity piece can also stop ascending after stopping triggering the triggering part, so that the over-travel condition caused by switch failure is effectively avoided, and the safety is improved.

Description

Stacking machine

Technical Field

The utility model relates to a stereoscopic warehouse component conveying equipment technical field especially relates to a stacker.

Background

At present, in the field of fabricated building, after the components are poured, the components are conveyed to a curing kiln by a steel trolley, the steel trolley is placed in a three-dimensional curing room in batches by a stacker, after the components are placed and cured, the steel trolley carrying the components is taken out by the stacker and conveyed to a steel rail wheel assembly line, and a curing process is completed. The stacker usually detects the rising limit position by setting a travel switch, but the travel switch is easily damaged due to frequent lifting actions of the stacker, so that the over-travel condition is easily caused when the stacker rises, and the risk is high.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a stacker that effectively avoids the over-travel when ascending and improves safety, in view of the problem of high risk of the conventional stacker.

A stacker, comprising:

a support;

the operating platform is slidably arranged on the bracket along the vertical direction;

the driving assembly is used for driving the operation platform to slide along the vertical direction;

the control switch is arranged at the top end of the bracket and comprises a first state for controlling the conduction of an external power supply and the driving assembly and a second state for controlling the disconnection of the external power supply and the driving assembly; and

the gravity piece is suspended on the trigger part of the control switch, and the trigger part of the control switch can be triggered under the action of pulling force provided by the gravity piece so as to switch the control switch from the second state to the first state; and the gravity piece is positioned above the operating platform.

Through setting up foretell stacker, the gravity piece hangs in the operation platform top, and control switch's trigger part is triggered through the gravity piece, the tension of gravity piece to trigger part is unchangeable, control switch then is in first state all the time, and rise to contact with the gravity piece when operation platform, and the gravity piece supports and presses in operation platform in addition, the gravity piece can disappear to trigger part this moment, thereby then make control switch disconnection drive assembly and external power supply's be connected, operation platform stops rising. Compared with the existing mode that the travel switch is arranged at the ascending track of the operating platform, the operating platform cannot be damaged due to collision caused by deflection in the ascending process, and meanwhile, the gravity piece can also stop ascending after stopping triggering the triggering part, so that the over-travel condition caused by switch failure is effectively avoided, and the safety is improved.

In one embodiment, the stacker further comprises a connecting rope, wherein one end of the connecting rope is connected to the triggering part of the control switch, and the other end of the connecting rope is connected to the gravity piece, so that the gravity piece is suspended at the preset height.

In one embodiment, the control switch is a pull switch.

In one embodiment, the stacker further comprises a lifting switch, wherein the lifting switch is connected between the external power supply and the driving assembly and used for communicating the external power supply and the driving assembly when the lifting switch is closed, so that the driving assembly drives the operating platform to lift.

In one embodiment, the stacker further comprises descending switches, and the descending switches are connected between the external power supply and the driving assembly and used for communicating the external power supply and the driving assembly when the stacker is closed, so that the driving assembly drives the operating platform to descend.

In one embodiment, the stacker further comprises a first contactor and a second contactor, wherein the first contactor comprises a first normally closed contact and a first coil which are linked, the second contactor comprises a second normally closed contact and a second coil which are linked, the second normally closed contact is electrically connected with the first coil, and the first normally closed contact is electrically connected with the second coil;

the stacker further comprises a control power supply, the first normally closed contact and the second normally closed contact can be electrically connected with the control power supply, when the control power supply is electrically connected with the first coil, the first normally closed contact is disconnected, the ascending switch is closed, and when the control power supply is electrically connected with the second coil, the second normally closed contact is disconnected, and the descending switch is closed;

the control switch is connected between the control power supply and the second normally closed contact and used for controlling the on-off between the control power supply and the first coil.

In one embodiment, the stacker further includes an ascending key switch and a descending key switch, the ascending key switch is connected between the control switch and the control power supply, and the descending key switch is connected between the first normally-closed contact and the control power supply.

In one embodiment, the driving assembly includes a three-phase asynchronous motor and a lifting winch mechanism, the three-phase asynchronous motor is disposed on the operating platform, the lifting winch mechanism is connected between the operating platform and the support, and the lifting winch mechanism is driven by the three-phase asynchronous motor to drive the operating platform to slide on the support along the vertical direction.

In one embodiment, the gravity member is a metal ball or a metal rod.

In one embodiment, the stacker further comprises a roller, wherein the roller is arranged at the bottom end of the support and is used for sliding along a rail laid below the stacker.

Drawings

Fig. 1 is a schematic structural diagram of a stacker according to an embodiment of the present invention;

FIG. 2 is an enlarged view of the structure at A of the stacker shown in FIG. 1;

FIG. 3 is a circuit schematic of the operating circuit of the stacker shown in FIG. 1;

fig. 4 is a circuit schematic diagram of a control circuit of the stacker shown in fig. 1.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, a stacker crane 10 according to an embodiment of the present invention includes a support 12, an operation platform 14, a driving assembly 16, a control switch 17, and a gravity member 18.

The operation platform 14 is slidably disposed on the support 12 along a vertical direction, the driving assembly 16 is configured to drive the operation platform 14 to slide along the vertical direction, the control switch 17 is disposed at a top end of the support 12, and the control switch 17 includes a first state for controlling the external power supply to be connected with the driving assembly 16 and a second state for controlling the external power supply to be disconnected with the driving assembly 16.

The gravity piece 18 is suspended on the trigger part of the control switch 17, and the trigger part of the control switch 17 can be triggered under the action of the pulling force provided by the gravity piece 18, so that the control switch 17 is switched from the second state to the first state; and the weight member 18 is located above the operation platform 14.

By arranging the stacker, the gravity piece 18 is suspended above the operation platform, the triggering part of the control switch 17 is triggered through the gravity piece 18, if the pulling force of the gravity piece 18 on the triggering part is not changed, the control switch 17 is always in the first state, when the operation platform 14 rises to be in contact with the gravity piece 18, the gravity piece 18 is pressed against the operation platform 14, at the moment, the gravity piece 18 disappears to the triggering part, so that the control switch 17 is enabled to disconnect the driving component 16 from the external power supply, and the operation platform 14 stops rising. Compared with the existing mode that the travel switch is arranged at the ascending track of the operating platform 14, the operating platform 14 cannot be damaged due to deflection collision in the ascending process, and meanwhile, the gravity piece 18 can also stop ascending after stopping triggering the triggering part, so that the over-travel condition caused by switch failure is effectively avoided, and the safety is improved.

It should be noted that the trigger part of the control switch 17 is only used to describe the condition for switching the control switch 17 between the first state and the second state, that is, the trigger part is triggered or stops triggering, and the trigger part may have different structures on the switch corresponding to different switch types.

In some embodiments, the support 12 is provided with a vertically extending lifting guide rail, and the operation platform 14 slides along the lifting guide rail, so that the operation platform 14 is slidably provided on the support 12 in the vertical direction. Furthermore, the operating platform 14 is provided with a guide wheel, and the guide wheel is slidably arranged in the lifting guide track.

It should be noted that, a certain gap actually exists between the guide wheel and the lifting guide rail, which causes a certain deflection phenomenon of the operation platform 14 during the lifting or lowering process, which causes inconvenient installation of the travel switch, and also causes easy damage of the travel switch due to frequent lifting and deflection.

Furthermore, the above-mentioned predetermined height is actually the highest height at which the operating platform 14 is allowed to rise, and the rise would overtravel, causing damage to the equipment.

In some embodiments, the stacker further comprises rollers disposed at the bottom end of the frame 12 for facilitating movement of the frame 12, and typically sliding along rails laid underneath the stacker. In practical application, the number of the rollers is multiple, and at least two rollers are provided with clamping feet for preventing the support 12 from moving when the stacker is required to be stationary.

Referring to fig. 2, in some embodiments, the stacker further includes a connecting rope 19, one end of the connecting rope 19 is connected to the triggering portion of the control switch 17, and the other end is connected to the gravity member 18, so that the gravity member 18 is suspended at a predetermined height and is located above the operation platform.

It can be determined that the gravity element 18 will convert its gravity force into a pulling force for the control switch 17 through the connection rope 19, and when the gravity element 18 is pressed against the operation platform 14, the pulling force of the gravity element 18 for the connection rope 19 disappears, and thus the pulling force for the control switch 17 also disappears.

It can be understood by combining the above embodiments that the change of the pulling force of the gravity member 18 and the connecting rope 19 on the control switch 17 changes the state of the control switch 17, and when the control switch 17 is pulled by the gravity of the gravity member 18 and the connecting rope 19, the control switch 17 is in the first state, and when the pulling force provided by the gravity member 18 on the control switch 17 disappears, the control switch 17 is in the second state.

Further, the control switch 17 is a pull switch. So, gravity piece 18 hangs through connecting rope 19, and connects 19 one end of the rope and be connected with the pull switch, that is to say the gravity of gravity piece 18 self provides a pulling force for the pull switch for pull switch is in the state of pulling open, and supports when pressing in operation platform 14 as gravity piece 18, and the gravity of gravity piece 18 can be pressed on operation platform 14, and the pulling force to the pull switch also can disappear, and the pull switch also can be closed.

It is understood that in the above embodiment, when the pull switch is in the open state, the external power source is electrically connected to the driving assembly 16, that is, the user can control the driving assembly 16 to move to lift the operation platform 14, and when the pull switch is in the closed state, the external power source is disconnected from the driving assembly 16, that is, the user cannot control the driving assembly 16 to drive the operation platform 14 to ascend.

Specifically, the connecting rope 19 is a steel wire string, the gravity element 18 is a metal ball, so as to avoid generating elasticity during connection and influencing the action of the pull switch, and compared with the metal ball, the string is not enough in gravity to trigger the pull switch, so that the string can be regarded as not providing pulling force. Of course, in other embodiments, the gravity member 18 may be a metal rod, a metal block, etc., as long as the gravity for pulling the pull switch is provided.

In some embodiments, a connecting portion 11 extends from one side of the top end of the bracket 12 to the outside, and the pull switch is disposed at the connecting portion 11. The operating platform 14 usually extends out of the bracket 12, and the orthographic projection of the pull switch arranged on the connecting portion 11 towards the horizontal plane should be within the orthographic projection range of the operating platform 14 towards the horizontal plane, so as to ensure that the gravity member 18 is positioned above the operating platform 14, i.e. to ensure that the operating platform 14 is pressed by the gravity member 18 connected with the pull switch through the connecting rope 19 hanging vertically when the operating platform 14 is lifted to a preset height.

In some embodiments, the driving assembly 16 includes a three-phase asynchronous motor 162 and a lifting/lowering mechanism 164, the three-phase asynchronous motor 162 is disposed on the operation platform 14, the lifting/lowering mechanism 164 is connected between the operation platform 14 and the support 12, and the lifting/lowering mechanism 164 is driven by the three-phase asynchronous motor 162 to drive the operation platform 14 to slide on the support 12 along the vertical direction.

As shown in fig. 3, in some embodiments, the stacker further includes a raising switch KM1 and a lowering switch KM2, wherein the raising switch KM1 and the lowering switch KM2 are both connected between the external power source and the driving module 16, and the raising switch KM1 drives the operating platform 14 to raise when closed, and the lowering switch KM2 drives the operating platform 14 to lower when closed.

As can be understood by referring to the figure, if the motor is a three-phase asynchronous motor 162, the motor can be controlled to rotate forward and backward by changing the phase, that is, the three-phase asynchronous motor 162 is electrically connected with the same external power supply through two circuits, one is a forward rotation circuit, the other is a reverse rotation circuit, the upward rotation is performed by ascending, the upward switch KM1 is arranged on the forward transmission circuit and used for controlling the on-off of the forward transmission circuit, and the downward switch KM2 is arranged on the reverse rotation circuit and used for controlling the on-off of the reverse rotation circuit.

In addition, in the above embodiment, in practical applications, it is only necessary to ensure that the operation platform 14 does not ascend after reaching the preset height, that is, the three-phase asynchronous motor 162 does not rotate forward any more, that is, the forward rotation circuit is disconnected and cannot be connected, and the operation platform 14 can descend, that is, the reverse rotation circuit can be connected. Of course, at a predetermined height, both the forward rotation circuit and the reverse rotation circuit are connected, but cannot be connected at the same time, that is, when the up switch KM1 is closed, the down switch KM2 is opened, and when the down switch KM2 is closed, the up switch KM1 is opened.

Referring to fig. 4, in some embodiments, the stacker further includes a first contactor and a second contactor, the first contactor includes a first normally closed contact KM1 and a first coil KM1, the second contactor includes a second normally closed contact KM2 and a second coil KM2, the second normally closed contact KM2 and the first coil KM1 are electrically connected, and the first normally closed contact KM1 and the second coil KM2 are electrically connected.

Further, the stacker further comprises a control power supply, both the first normally closed contact KM1 and the second normally closed contact KM2 can be electrically connected with the control power supply, when the control power supply is electrically connected with the first coil KM1, the first normally closed contact KM1 is opened, the ascending switch KM1 is closed, and when the control power supply is electrically connected with the second coil KM2, the second normally closed contact KM2 is opened, and the descending switch KM2 is closed.

It should be explained that, the above-mentioned first contactor and second contactor, that is, the contactor in the conventional control circuit, the coil and the contact point are linked to mean that: the contacts are normally closed contacts which remain closed when the coil with which they are associated is not energized, and open when the coil with which they are associated is energized.

Meanwhile, a rising switch KM1 and a falling switch KM2 in the working circuit in the figure are controlled by a control circuit, and actually correspond to two contactors in the control circuit, a first coil KM1 is electrified, a rising switch KM1 is closed, a second coil KM2 is electrified, a falling switch KM2 is closed, and a first coil KM1 and a second coil KM2 in the control circuit are not electrified at the same time.

With continued reference to fig. 4, in some embodiments, the control switch 17 is connected between the control power source and the second normally closed contact KM2 (the control switch 17 is labeled S L in the control circuit, so that the control switch is labeled as such in fig. 4 for ease of understanding of its position), for controlling the connection and disconnection between the control power source and the first coil KM 1. further, the stacker further includes a raising button SB1 and a lowering button SB2, the raising button SB1 being connected between the control power source and the control switch 17, and the lowering button SB2 being connected between the control power source and the first normally closed contact KM1, so that the user can control the operation of the actuator assembly 16 through the two buttons.

When the control switch 17 is in the on state, the control power supply and the first coil KM1 can be powered on, that is, the rising button SB1 is pressed, the first coil KM1 can be powered on, the rising switch KM1 is closed, the three-phase asynchronous motor 162 rotates forward, the operation platform 14 rises, when the control switch 17 is in the off state, the control power supply and the first coil KM1 are disconnected, the rising button SB1 cannot be powered on even when pressed, and the operation platform 14 cannot rise continuously.

Compared with the prior art, the utility model provides a stacker has following advantage at least:

1) when the operating platform rises to a preset height, the operating platform touches the gravity piece, so that the pull switch is closed, the rising switch is disconnected, the operating platform stops rising, the operating platform cannot be damaged due to deflection in the rising process of the operating platform, the over-stroke condition caused by switch failure is effectively avoided, and the safety is improved;

2) the device can be realized only by a pull switch, a connecting rope and a gravity piece, and has the advantages of simple structure, low cost and easy popularization;

3) can the on-the-spot debugging, guarantee promptly that operating platform rises and to predetermine when high pull switch can change the state.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A stacker, comprising:

a support;

2. The stacker according to claim 1, wherein the stacker further comprises a connection rope, one end of the connection rope is connected to the trigger portion of the control switch, and the other end of the connection rope is connected to the gravity piece, so that the gravity piece is suspended at a preset height.

3. The stacker according to claim 1 wherein the control switch is a pull switch.

4. The stacker according to claim 1, further comprising a lifting switch, wherein the lifting switch is connected between the external power supply and the driving assembly and used for communicating the external power supply and the driving assembly when the lifting switch is closed, so that the driving assembly drives the operation platform to lift.

5. The stacker according to claim 4, wherein the stacker further comprises a descent switch, and the descent switches are connected between the external power supply and the driving assembly and are used for communicating the external power supply and the driving assembly when being closed, so that the driving assembly drives the operation platform to descend.

6. The stacker according to claim 5, wherein the stacker further comprises a first contactor and a second contactor, wherein the first contactor comprises a first normally closed contact and a first coil which are linked, the second contactor comprises a second normally closed contact and a second coil which are linked, the second normally closed contact is electrically connected with the first coil, and the first normally closed contact is electrically connected with the second coil;

7. The stacker according to claim 6, wherein the stacker further comprises an ascending key switch and a descending key switch, the ascending key switch is connected between the control switch and the control power supply, and the descending key switch is connected between the first normally closed contact and the control power supply.

8. The stacker according to any one of claims 1 to 7 wherein the drive assembly comprises a three-phase asynchronous motor and a lifting winch mechanism, the three-phase asynchronous motor is disposed on the operating platform, the lifting winch mechanism is connected between the operating platform and the support, and the lifting winch mechanism is driven by the three-phase asynchronous motor to drive the operating platform to slide on the support in the vertical direction.

9. The stacker according to any one of claims 1 to 7 wherein the gravity piece is a metal ball or a metal rod.

10. The stacker according to any one of claims 1 to 7, wherein said stacker further comprises a roller, said roller being disposed at a bottom end of said support for sliding along a rail laid underneath said stacker.