CN216764218U - Electric lifting stacking machine - Google Patents

Abstract

The utility model discloses an electric lifting fork lift, which comprises a movable base, a frame, a lifting frame and a lifting driving mechanism, wherein the movable base is provided with a lifting frame; the device also comprises a positioning ruler, a goods sensing device, an upper limit switch, a lower limit switch, a control box and a battery; the upper limit switch, the lower limit switch, the first sensor and the second sensor are all connected with the control box. The lifting frame can be lifted to a preset position in a self-adaptive manner according to the height of the goods, so that the carrying operation is facilitated, and meanwhile, the device has the advantages of convenience in adjustment and multiple functions.

Description

Electric lifting stacking machine

Technical Field

The utility model relates to an electric stacking device.

Background

A forklift is a mechanical device that performs loading, unloading, stacking, and transporting operations. For example, in the structure disclosed in "an electric stacker" of chinese utility model having publication No. CN206654689U, the conventional stacker mainly includes a movable base, a support installed on the base, and a support plate which is vertically moved along the support. During the use, the operator puts the goods on the layer board of liftable, moves between the station.

The existing stacking machine has the following defects: when the goods volume that stacks is great, the layer board need reduce to very low position, and the operator is got and is put the lower goods in position and need bow, if the goods is heavier, harms the waist very easily, and consequently, the operator need often adjust the height of layer board according to the height of goods, influences handling efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electric lifting fork lift, which aims to: the problem of the operator get when putting the goods that stack operate inconveniently, need frequently adjust the layer board height is solved.

The technical scheme of the utility model is as follows:

an electric lifting fork lift comprises a movable base, a frame, a lifting frame and a lifting driving mechanism; the frame is vertically arranged on the movable base; the lifting frame is in sliding fit with the framework, and a horizontally arranged supporting plate for bearing goods is arranged on the lifting frame; the lifting driving mechanism is fixedly arranged relative to the frame, comprises a motor for driving the lifting frame to move up and down along the frame, and also comprises a positioning ruler, a goods sensing device, an upper limit switch, a lower limit switch, a control box and a battery;

the upper limit switch and the lower limit switch are normally closed and are respectively installed at the top and the bottom of the frame and used for inducing the lifting frame;

the positioning ruler is vertically arranged on the frame, the goods sensing device is arranged on the positioning ruler in a magnetic suction mode, a first sensor and a second sensor for sensing goods are integrated in the goods sensing device, the first sensor is normally open, the second sensor is normally closed, and the first sensor is located above the second sensor;

the upper limit switch, the lower limit switch, the first sensor and the second sensor are all connected with the control box;

the control box is provided with a control circuit, and the control circuit comprises a function selector switch, an ascending button, a descending button, a first relay and a second relay;

the function switch comprises a first action switch and a second action switch which act synchronously and have opposite on-off states all the time, wherein one end of the first action switch is connected with the anode of the battery, the other end of the first action switch is connected with one end of a coil of the first relay through a normally open ascending button, and the other end of the first action switch is also connected with one end of a coil of the second relay through a normally open descending button; one end of a second action switch is connected with the anode of the battery, the other end of the second action switch is connected with one end of a coil of a second relay through a first sensor and a lower limit switch which are connected in series, and the other end of the second action switch is also connected with one end of the coil of the first relay through a second sensor and an upper limit switch which are connected in series;

the other end of the coil of the first relay and the other end of the coil of the second relay are both connected with the cathode of the battery;

the control box is characterized in that a main circuit is further arranged in the control box and comprises a forward connecting circuit and a reverse connecting circuit, two poles of the battery are connected with the motor through the forward connecting circuit and are also connected with the motor through the reverse connecting circuit, a normally open switch of the first relay is arranged on the forward connecting circuit, and a normally open switch of the second relay is arranged on the reverse connecting circuit.

As a further improvement of the electric lifting fork lift: the lifting frame comprises a back plate, a sliding block, a sliding rail, a supporting arm and the supporting plate;

the sliding block is arranged on the back plate and matched with the vertical guide rail on the frame;

the sliding rail is horizontally arranged on the front side of the back plate;

the supporting arms are divided into a left group and a right group; the bracket arm is L-shaped and comprises a vertical part and a horizontal part, the vertical part is matched with the slide rail to realize horizontal movement relative to the back plate, and the rear end of the horizontal part is fixedly connected with the lower end of the vertical part; the pallet is placed on the horizontal portion.

As a further improvement of the electric lifting fork lift: the inner sides of the horizontal parts of the support arms are respectively connected with horizontally arranged clamping plates, the inner sides of the clamping plates are provided with inner circular arc edges matched with barreled goods, and the two groups of clamping plates are symmetrical to each other.

As a further improvement of the electric lifting fork lift: two groups of adjusting screw rods which are in one-to-one correspondence with the support arms are further mounted on the back plate in a rotating connection mode, and the adjusting screw rods are connected with the corresponding support arms in a thread fit mode.

As a further improvement of the electric lifting fork lift: the goods sensing device comprises a shell, wherein a magnetic suction plate used for being attached to the positioning ruler is arranged on the back side of the shell; the first sensor and the second sensor are mounted in a housing;

the positioning ruler is provided with scales for indicating height.

As a further improvement of the electric lifting fork lift: the lifting driving mechanism also comprises a driving shaft which is horizontally arranged and is arranged at the bottom of the frame in a rotatable connection mode, and a driven shaft which is horizontally arranged and is arranged at the top of the frame in a rotatable connection mode;

the motor is arranged on the movable base, a first chain wheel is arranged on an output shaft of the motor, and the first chain wheel is in transmission connection with a second chain wheel arranged on the driving shaft through a first transmission chain;

the two ends of the driving shaft are respectively provided with a third chain wheel, the two ends of the driven shaft are respectively provided with a fourth chain wheel, and each third chain wheel is in transmission connection with the fourth chain wheel at the same side through a group of second transmission chains;

the second transmission chain is connected with the lifting frame.

As a further improvement of the electric lifting fork lift: two universal wheels about the front end of portable base is installed, and two directional wheels about the rear end is installed.

Compared with the prior art, the utility model has the following beneficial effects: (1) the device detects the state of the goods through an upper sensor and a lower sensor in the goods sensing device, when the goods cannot be detected by the upper first sensor and the lower second sensor, the first relay controls the forward connecting circuit to be conducted, the motor rotates forward, the lifting frame ascends until the goods are detected by the second sensor, when the goods are detected by the upper first sensor and the lower second sensor, the reverse connecting circuit is controlled by the second relay to be conducted, the motor rotates reversely, the lifting frame descends until the goods cannot be detected by the first sensor, and therefore the upper end of the goods is always located between the two sensors no matter how many goods are loaded, self-adaptive lifting is achieved, the goods can be conveniently taken and placed by an operator, and the height does not need to be frequently adjusted manually; (2) the goods sensing device is arranged on the positioning ruler in a magnetic suction mode, so that the sensing position can be conveniently adjusted according to the requirement; (3) manual and automatic function switching can be realized through the change-over switch, and the height can be freely adjusted according to the requirement in a manual state; (4) after the supporting plate is detached, the barreled goods can be clamped by the clamping plates on the inner sides of the two supporting arms, and the barreled goods can be conveyed.

Drawings

FIG. 1 is a perspective view of one embodiment of the present invention;

FIG. 2 is a second perspective view of the present invention;

FIG. 3 is a schematic structural view of a lifting driving mechanism;

FIG. 4 is a schematic structural view of the crane after the pallet is removed;

FIG. 5 is a schematic view of the stacker for transporting box cargo;

FIG. 6 is a schematic illustration of the handling of a bulk cargo using the present fork lift truck;

FIG. 7 is a schematic view of a portion of the cargo sensing apparatus;

FIG. 8 is an electrical schematic of the control circuit;

fig. 9 is a schematic diagram of the connection between the main circuit and the motor part.

Part names corresponding to the numbers in the figures:

1. a mobile base; 2. a frame; 3. a lifting frame; 4. a lifting drive mechanism; 5. an upper limit switch; 6. a cargo sensing device; 7. positioning a ruler; 8. a lower limit switch; 9. a handle; 10. a control box; 11. a battery; 3-1, a back plate; 3-2, a sliding block; 3-3, adjusting a screw rod; 3-4, sliding rails; 3-5, a supporting arm; 3-6, clamping plate; 3-7, a supporting plate; 4-1, a motor; 4-2, a first transmission chain; 4-3, driving shaft; 4-4, a second transmission chain; 4-5, a driven shaft; 6-1, a shell; 6-2, magnetic suction plates; 6-3, a first sensor; 6-4, a second sensor; 10-1, a function switch; 10-2, a rise button; 10-3, a down button; 10-4, a coil of a first relay; 10-5, a coil of a second relay; 10-4-1, a normally open switch of the first relay; 10-5-1 and a normally open switch of the second relay.

Detailed Description

The technical scheme of the utility model is explained in detail in the following with the accompanying drawings:

referring to fig. 1 and 2, an electric lifting fork lift comprises a movable base 1, a frame 2, a lifting frame 3 and a lifting driving mechanism 4.

The front end of the movable base 1 is provided with a left universal wheel and a right universal wheel with braking functions, and the rear end of the movable base is provided with a left directional wheel and a right directional wheel made of rubber materials.

The frame 2 is vertically mounted on the mobile base 1. Guide rails are mounted on the left and right mullions of the frame 2. The lifting frame 3 is arranged on the guide rail.

The handle 9 is also mounted on the rear side of the frame 2, facilitating movement of the entire device.

The lifting driving mechanism 4 is fixedly arranged relative to the frame 2, and comprises a motor 4-1 for driving the lifting frame 3 to move up and down along the frame 2, a driving shaft 4-3 which is horizontally arranged and is arranged at the bottom of the frame 2 in a rotating connection mode, and a driven shaft 4-5 which is horizontally arranged and is arranged at the top of the frame 2 in a rotating connection mode.

The motor 4-1 is arranged on the movable base 1, a first chain wheel is arranged on an output shaft of the motor 4-1, and the first chain wheel is in transmission connection with a second chain wheel arranged on the driving shaft 4-3 through a first transmission chain 4-2.

And third chain wheels are respectively installed at two ends of the driving shaft 4-3, fourth chain wheels are respectively installed at two ends of the driven shaft 4-5, and each third chain wheel is in transmission connection with the fourth chain wheel at the same side through a group of second transmission chains 4-4.

The second transmission chain 4-4 is connected with the lifting frame 3. When the motor 4-1 rotates, the driving shaft 4-3 is driven to rotate by the first transmission chain 4-2, and the second transmission chain 4-4 is driven by the driving shaft 4-3 to move, so that the lifting frame 3 is driven to move up and down along the guide rail on the frame 2.

Referring to fig. 4 to 6, the lifting frame 3 comprises a back plate 3-1, a sliding block 3-2, a sliding rail 3-4, a supporting arm 3-5 and a supporting plate 3-7.

The sliding block 3-2 is arranged on the back plate 3-1, and the sliding block 3-2 is matched with a vertical guide rail on the frame 2.

The sliding rail 3-4 is horizontally arranged on the front side of the back plate 3-1. The supporting arms 3-5 are divided into a left group and a right group. The bracket arm 3-5 is L-shaped and comprises a vertical part and a horizontal part, the vertical part is matched with the sliding rail 3-4 to realize horizontal movement relative to the back plate 3-1, and the rear end of the horizontal part is fixedly connected with the lower end of the vertical part.

The pallets 3-7 are placed horizontally on the horizontal part of the corbels 3-5 for carrying boxed goods (see fig. 5).

As shown in fig. 4, the inner sides of the horizontal parts of the support arms 3-5 are respectively connected with horizontally arranged clamping plates 3-6, and the inner sides of the clamping plates 3-6 are provided with inner arc edges used for being matched with barreled goods. The two groups of clamping plates 3-6 are mutually symmetrical. As shown in fig. 3 and 6, when the barreled goods need to be transported, the supporting plate 3-7 can be taken down, and then the supporting arm 3-5 is moved, so that the inner arc edges of the clamping plates 3-6 on the two sides clamp the top cover and other parts of the barrel, and the transportation of the barreled goods is realized.

Further, as shown in fig. 4, two groups of adjusting screw rods 3-3 corresponding to the support arms 3-5 one by one are further mounted on the back plate 3-1 in a rotating connection manner, and the adjusting screw rods 3-3 are connected with the corresponding support arms 3-5 in a thread fit manner. The supporting arms 3-5 can be driven to move along the sliding rails 3-4 by rotating the adjusting screw rods 3-3, the positions of the supporting arms 3-5 can be conveniently and accurately adjusted, and meanwhile, the self-locking characteristic of threads can be utilized to prevent the supporting arms 3-5 from moving randomly in the carrying process.

Further, as shown in fig. 1 and 2, the equipment further comprises a positioning ruler 7, a goods sensing device 6, an upper limit switch 5, a lower limit switch 8, a control box 10 and a battery 11.

The upper limit switch 5 and the lower limit switch 8 are both normally closed and are respectively installed at the top and the bottom of the frame 2 and used for inducing the lifting frame 3.

The positioning rule 7 is vertically installed on the frame 2, and the goods sensing device 6 is installed on the positioning rule 7 in a magnetic attraction mode.

In this embodiment, as shown in fig. 7, the cargo sensing device 6 includes a housing 6-1 made of plastic, and a magnetic attraction plate 6-2 attached to the positioning ruler 7 is disposed on a back side of the housing 6-1. A first sensor 6-3 and a second sensor 6-4 which are sequentially arranged from top to bottom and used for sensing goods are arranged in the shell 6-1, the first sensor 6-3 is normally open, and the second sensor 6-4 is normally closed. The positioning ruler 7 is made of metal and is provided with scales for indicating the height of the goods sensing device 6.

The control box 10 is installed at the middle of the back side of the frame 2. The batteries 11 are detachably mounted on both sides of the control box 10. The battery 11 is used for supplying power to the motor 4-1 and the control box 10, and the output voltage is 12V.

The upper limit switch 5, the lower limit switch 8, the first sensor 6-3 and the second sensor 6-4 are all connected with the control box 10.

As shown in fig. 8, the control box 10 is provided with a control circuit, and the control circuit includes a function switch 10-1, an up button 10-2, a down button 10-3, a first relay and a second relay.

The function switch 10-1 includes a first action switch and a second action switch which act synchronously and have opposite on-off states.

One end of the first action switch is connected with the positive electrode of the battery 11, the other end of the first action switch is connected with one end of a coil 10-4 of the first relay through a normally open ascending button 10-2, and the other end of the first action switch is also connected with one end of a coil 10-5 of the second relay through a normally open descending button 10-3.

One end of the second action switch is connected with the positive pole of the battery 11, the other end of the second action switch is connected with one end of a coil 10-5 of the second relay through a first sensor 6-3 and a lower limit switch 8 which are connected in series, and the other end of the second action switch is also connected with one end of a coil 10-4 of the first relay through a second sensor 6-4 and an upper limit switch 5 which are connected in series.

The other end of the coil 10-4 of the first relay and the other end of the coil 10-5 of the second relay are both connected to the negative pole of the battery 11.

As shown in fig. 9, the control box 10 is further provided with a main circuit therein, and the main circuit includes a forward connection circuit and a reverse connection circuit. The two poles of the battery 11 are connected with the motor 4-1 through a forward connecting circuit and are also connected with the motor 4-1 through a reverse connecting circuit. When the forward connecting circuit is conducted, the motor 4-1 rotates forward; when the reverse connection circuit is turned on, the motor 4-1 is reversed. The normally open switch 10-4-1 of the first relay is arranged on the forward connecting circuit, and the normally open switch 10-5-1 of the second relay is arranged on the reverse connecting circuit.

As shown in fig. 8 and 9, the apparatus can be set to a manual mode or an automatic mode by switching the switch.

When the first action switch in the change-over switch is closed and the second action switch is opened, the device is in a manual mode. At the moment, the ascending button 10-2 or the descending button 10-3 is pressed, the coil 10-4 of the first relay or the coil 10-5 of the second relay is electrified, the normally open switch 10-4-1 of the first relay or the normally open switch 10-5-1 of the second relay is closed, the forward connecting circuit or the reverse connecting circuit is conducted, the forward rotation or the reverse rotation of the motor 4-1 is realized, and the ascending or descending of the crane 3 is finally realized.

When the first action switch in the change-over switch is turned off and the second action switch is turned on, the device is in an automatic mode. In this mode, the device can automatically adjust the height of the lifting frame 3 according to the position of the pre-placed cargo sensing device 6, so that the top end of the uppermost cargo is always positioned between the first sensor 6-3 and the second sensor 6-4. The specific principle is as follows:

under a normal state, the first sensor 6-3 cannot detect goods, the second sensor 6-4 can detect the goods, the first sensor 6-3 and the second sensor 6-4 are both in a disconnected state, the coil 10-4 of the first relay and the coil 10-5 of the second relay are not electrified, the main circuit is in the disconnected state, the motor 4-1 stops, and the lifting frame 3 is in a static state.

When an operator takes down the uppermost goods, the first sensor 6-3 and the second sensor 6-4 can not detect the goods, the first sensor 6-3 is still disconnected, the second sensor 6-4 is in a closed state, the coil 10-4 of the first relay is electrified, the normally open switch 10-4-1 of the first relay controls the forward connecting circuit to be conducted, the motor 4-1 rotates forwards to drive the lifting frame 3 to ascend until the second sensor 6-4 detects the goods, the second sensor 6-4 is disconnected, at the moment, the coil 10-4 of the first relay and the coil 10-5 of the second relay are not electrified, the main circuit is in a disconnected state, the motor 4-1 stops, the lifting frame 3 stops lifting, and the top end of the uppermost cargo is located between the first sensor 6-3 and the second sensor 6-4.

When an operator puts a new cargo on the equipment, the first sensor 6-3 and the second sensor 6-4 both detect the cargo, the second sensor 6-4 is still disconnected, the first sensor 6-3 is in a closed state, the coil 10-5 of the second relay is electrified, the normally open switch 10-5-1 of the second relay controls the reverse connection circuit to be conducted, the motor 4-1 is reversed to drive the lifting frame 3 to descend until the first sensor 6-3 cannot detect the cargo, the first sensor 6-3 is disconnected, at the moment, the coil 10-4 of the first relay and the coil 10-5 of the second relay are not electrified, the main circuit is disconnected, the motor 4-1 stops, the lifting frame 3 stops descending, and the top end of the uppermost cargo is still located between the first sensor 6-3 and the second sensor 6-4.

If the upper limit switch 5 or the lower limit switch 8 is triggered in the lifting process, the motor 4-1 can automatically stop.

Therefore, in the automatic mode, the height of the cargo sensing device 6 can be accurately adjusted by the operator in advance by using a magnetic attraction mode, so that the lifting frame 3 can be lifted to a proper position in a self-adaptive manner according to the height of the cargo in the loading and unloading process as long as the upper limit switch 5 and the lower limit switch 8 are not triggered, and the carrying operation is greatly facilitated.

Claims (7)

1. An electric lifting fork lift comprises a movable base (1), a frame (2), a lifting frame (3) and a lifting driving mechanism (4); the frame (2) is vertically arranged on the movable base (1); the lifting frame (3) is in sliding fit with the frame (2), and a horizontally arranged supporting plate (3-7) for bearing cargos is arranged on the lifting frame (3); lifting drive mechanism (4) are for frame (2) fixed setting, including being used for driving motor (4-1) that crane (3) reciprocated along frame (2), its characterized in that: the device also comprises a positioning ruler (7), a goods sensing device (6), an upper limit switch (5), a lower limit switch (8), a control box (10) and a battery (11);

the upper limit switch (5) and the lower limit switch (8) are normally closed and are respectively arranged at the top and the bottom of the frame (2);

the positioning ruler (7) is vertically arranged on the frame (2), the goods sensing device (6) is arranged on the positioning ruler (7) in a magnetic attraction mode, a first sensor (6-3) and a second sensor (6-4) for sensing goods are integrated in the goods sensing device (6), the first sensor (6-3) is normally open, the second sensor (6-4) is normally closed, and the first sensor (6-3) is located above the second sensor (6-4);

the upper limit switch (5), the lower limit switch (8), the first sensor (6-3) and the second sensor (6-4) are all connected with the control box (10);

the control box (10) is provided with a control circuit, and the control circuit comprises a function switch (10-1), an ascending button (10-2), a descending button (10-3), a first relay and a second relay;

the function switch (10-1) comprises a first action switch and a second action switch which act synchronously and have opposite on-off states all the time, wherein one end of the first action switch is connected with the anode of a battery (11), the other end of the first action switch is connected with one end of a coil (10-4) of a first relay through a normally open ascending button (10-2), and the other end of the first action switch is also connected with one end of a coil (10-5) of a second relay through a normally open descending button (10-3); one end of a second action switch is connected with the anode of a battery (11), the other end of the second action switch is connected with one end of a coil (10-5) of a second relay through a first sensor (6-3) and a lower limit switch (8) which are connected in series, and the other end of the second action switch is also connected with one end of the coil (10-4) of the first relay through a second sensor (6-4) and an upper limit switch (5) which are connected in series;

the other end of the coil (10-4) of the first relay and the other end of the coil (10-5) of the second relay are both connected with the negative electrode of the battery (11);

the control box (10) is internally provided with a main circuit, the main circuit comprises a forward connecting circuit and a reverse connecting circuit, two poles of the battery (11) are connected with the motor (4-1) through the forward connecting circuit and are also connected with the motor (4-1) through the reverse connecting circuit, the normally open switch (10-4-1) of the first relay is arranged on the forward connecting circuit, and the normally open switch (10-5-1) of the second relay is arranged on the reverse connecting circuit.

2. The motorized lift fork lift truck of claim 1, wherein: the lifting frame (3) comprises a back plate (3-1), a sliding block (3-2), a sliding rail (3-4), a supporting arm (3-5) and the supporting plate (3-7);

the sliding block (3-2) is arranged on the back plate (3-1), and the sliding block (3-2) is matched with a vertical guide rail on the frame (2);

the sliding rail (3-4) is horizontally arranged on the front side of the back plate (3-1);

the supporting arms (3-5) are divided into a left group and a right group; the bracket arm (3-5) is L-shaped and comprises a vertical part and a horizontal part, the vertical part is matched with the sliding rail (3-4) to realize horizontal movement relative to the back plate (3-1), and the rear end of the horizontal part is fixedly connected with the lower end of the vertical part; the pallets (3-7) are placed on the horizontal portion.

3. The motorized lift fork lift truck of claim 2, wherein: the inner sides of the horizontal parts of the support arms (3-5) are respectively connected with horizontally arranged clamping plates (3-6), inner circular arc edges matched with barreled goods are arranged on the inner sides of the clamping plates (3-6), and the two groups of clamping plates (3-6) are symmetrical to each other.

4. The electric lift forklift as set forth in claim 2, wherein: two groups of adjusting screw rods (3-3) which are in one-to-one correspondence with the support arms (3-5) are further arranged on the back plate (3-1) in a rotating connection mode, and the adjusting screw rods (3-3) are connected with the corresponding support arms (3-5) in a thread fit mode.

5. The motorized lift fork lift truck of claim 1, wherein: the goods sensing device (6) comprises a shell (6-1), and a magnetic suction plate (6-2) which is used for being attached to a positioning ruler (7) is arranged on the back side of the shell (6-1); the first sensor (6-3) and the second sensor (6-4) are mounted in the housing (6-1);

the positioning ruler (7) is provided with scales for indicating the height.

6. The motorized lift fork lift truck of claim 1, wherein: the lifting driving mechanism (4) also comprises a driving shaft (4-3) which is horizontally arranged and is arranged at the bottom of the frame (2) in a rotating connection mode, and a driven shaft (4-5) which is horizontally arranged and is arranged at the top of the frame (2) in a rotating connection mode;

the motor (4-1) is arranged on the movable base (1), a first chain wheel is arranged on an output shaft of the motor (4-1), and the first chain wheel is in transmission connection with a second chain wheel arranged on the driving shaft (4-3) through a first transmission chain (4-2);

third chain wheels are respectively installed at two ends of the driving shaft (4-3), fourth chain wheels are respectively installed at two ends of the driven shaft (4-5), and the third chain wheels are respectively in transmission connection with the fourth chain wheels on the same side through a group of second transmission chains (4-4);

the second transmission chain (4-4) is connected with the lifting frame (3).

7. The electric lift fork lift of any of claims 1 to 6, characterized in that: the front end of the movable base (1) is provided with a left universal wheel and a right universal wheel, and the rear end of the movable base is provided with a left directional wheel and a right directional wheel.

Images