CN218560998U - Lifting structure for lifting platform - Google Patents

Abstract

The utility model relates to a lift technical field, concretely relates to a lift structure for lift platform, including bottom plate, motor, first lifter and second lifter, the motor is installed on the bottom plate, and the both ends of first lifter and second lifter are connected with bottom plate and lift platform respectively, and the motor passes through the coupling joint with first lifter, second lifter, and lift platform's bottom is equipped with sensing assembly, and sensing assembly, motor all are connected with the controller electricity. This application only needs a motor can realize holistic drive, has guaranteed the uniformity of lift, all installs a sensor module simultaneously in the front on the back, can detect lifting signal in real time through the displacement encoder that acts as go-between, is convenient for carry out accurate judgement to its trouble, and travel switch can't react its running state, has effectively avoided the structural damage of asynchronous leading to, and later maintenance is also more convenient, more intelligent.

Description

Lifting structure for lifting platform

Technical Field

The utility model relates to a lift technical field, concretely relates to a elevation structure for lift platform.

Background

In the field combat command vehicle, in order to make the space in the vehicle larger, two sides can be pulled out, and then the platform at the bottom is lifted, so that the space in the vehicle is increased.

The existing lifting platform with the middle bottom adopts two driving mechanisms to respectively drive in the lifting process, so that resources are wasted, and the two driving mechanisms are difficult to keep consistent when in use.

SUMMERY OF THE UTILITY MODEL

The utility model discloses drive respectively through two drive arrangement to present lift platform, there is probably asynchronous problem, provides a elevation structure for lift platform.

In order to realize the purpose of the utility model, the utility model provides a following technical scheme:

the utility model provides a lift structure for lift platform, includes bottom plate, motor, first lifter and second lifter, the motor is installed on the bottom plate, the both ends of first lifter and second lifter are connected with bottom plate and lift platform respectively, the motor with first lifter, second lifter pass through the coupling joint, lift platform's bottom is equipped with sensing component, sensing component is used for detecting whether lift platform targets in place, sensing component, motor all are connected with the controller electricity.

This application will be connected first lifter and second lifter through increasing the shaft coupling, just can drive first lifter and second lifter lift simultaneously through a motor, still detect lift platform through sensor assembly simultaneously and go up and down to target in place.

Preferably, the sensor assembly comprises an installation column and a trigger block, a travel switch is installed on the installation column, the trigger block comprises a connecting section and a trigger section, the connecting section is connected with the bottom of the lifting platform, the trigger section is used for acting on the travel switch, and the travel switch is electrically connected with the controller. Whether the lifting platform is lifted in place or not is timely acquired through the travel switch, so that the situation can be conveniently known.

Preferably, first sensor subassembly is installed to first lifter department, second sensor subassembly is installed to second lifter department, first sensor subassembly and second sensor subassembly all are equipped with at least three travel switch from last down. The uppermost travel switch is touched to indicate that the travel switch ascends to the right position, the lowermost travel switch is touched to indicate that the travel switch descends to the right position, and the middle travel switch is used for monitoring the middle process. When the middle sensor or the uppermost sensor at the first lifting rod detects a signal, but the middle sensor or the uppermost sensor at the second lifting rod does not detect a signal, it indicates that the coupling connecting the first lifting rod and the second lifting rod is damaged. When the time points of the signals received by the travel switches corresponding to the first lifting rod and the second lifting rod have errors, the first lifting rod and the second lifting rod are possibly broken. When the motor has output but the travel switches at the positions of the first lifting rod and the second lifting rod have no detection signal, the output shaft of the motor is broken, and the motor idles.

Preferably, the sensor assembly is a stay wire displacement encoder, the bottom of the lifting platform is provided with a connecting block, a shell of the stay wire displacement encoder is arranged on the bottom plate, the other end of the stay wire displacement encoder is connected with the connecting block, and the stay wire displacement encoder is electrically connected with the controller. The displacement of the lifting platform can be collected in real time through the stay wire displacement encoder.

Preferably, a first stay wire displacement encoder is installed at the first lifting rod, and a second stay wire displacement encoder is installed at the second lifting rod. Stay wire displacement encoder detects lift platform's lift displacement, then calculate speed by the displacement, go up and down respectively through first stay wire displacement encoder, the second stay wire displacement encoder monitors the elevating speed of first lifter and second lifter, when speed or displacement of two differ great, then indicate that one of them lifter has the fracture or the shaft coupling damages, when the speed that detects two stay wire displacement encoders is obviously less than the speed of setting for then indicate motor and shaft coupling junction fracture or motor locked rotor.

Preferably, the bottom of lift platform installs the installation piece of U type, first lifter and second lifter all are connected with the installation piece, sensor assembly is connected with the installation piece.

Compared with the prior art, the beneficial effects of the utility model are that: this application only needs a motor can realize holistic drive, has guaranteed the uniformity of lift, simultaneously through all installing a sensor package on the lifter in front and back, can detect the lift signal of lift platform in real time through the displacement encoder that acts as go-between, is convenient for carry out accurate judgement to its trouble, and travel switch can't react its running state. Whether the lifting of the lifting platform is synchronous or not is judged by judging the speed or the displacement, the structural damage caused by asynchronism is effectively avoided, and later maintenance is more convenient and more intelligent.

Description of the drawings:

fig. 1 is a first schematic view of a lifting structure for a lifting platform provided in the present application;

FIG. 2 is a schematic view of the lifting platform of FIG. 1 with the lifting platform removed;

FIG. 3 is an enlarged view of A in FIG. 1;

fig. 4 is a second schematic view of the lifting structure for lifting the platform provided in the present application;

fig. 5 is an enlarged view of B in fig. 4.

The labels in the figure are: the device comprises a base plate 1, a motor 2, a first lifting rod 3, a second lifting rod 4, a coupler 5, a lifting platform 6, a mounting column 7, a trigger block 8, a connecting section 9, a trigger section 10, a travel switch 11, a first sensor assembly 12, a second sensor assembly 13, a first stay wire encoder 14, a second stay wire encoder 15, a mounting block 16 and a support 17.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The application provides a lift structure for lift platform, including bottom plate 1, motor 2, first lifter 3 and second lifter 4, motor 2 installs on bottom plate 1, the both ends of first lifter 3 and second lifter 4 are connected with bottom plate 1 and lift platform 6 respectively. The motor 2 with first lifter 3, second lifter 4 pass through shaft coupling 5 to be connected, and the output shaft of motor 2 passes through shaft coupling 5 to be connected with first lifter 3 and second lifter 4 respectively promptly, and what the shaft coupling 5 adopted with being connected of first lifter 3 and second lifter 4 is gear connection, can drive first lifter 3 and the lift of second lifter 4 like this.

The bottom of lift platform 6 is equipped with sensing assembly, sensing assembly is used for detecting whether lift platform 6 goes up and down to target in place, can gather lift platform 6's the lift condition like this, sensor assembly, motor 2 all are connected with the controller electricity, and sensor assembly in time transmits the controller with the signal to the controller is controlled motor 2 to the controller.

A U-shaped mounting block 16 is mounted at the bottom of the lifting platform 6, and the first lifting rod 3 and the second lifting rod 4 are respectively connected with the mounting block 16.

As shown in fig. 4 and 5, a first sensor assembly 12 and a second sensor assembly 13 are installed at the first lift lever 3 and the second lift lever 4, respectively. The sensor assembly in fig. 1 comprises mounting columns 7 and a trigger block 8, wherein travel switches 11 are mounted on the mounting columns 7, at least three travel switches 11 are mounted on each mounting column 7 for accurate detection, and the travel switches 11 are electrically connected with the controller. Trigger block 8 includes linkage segment 9 and trigger segment 10, linkage segment 9 is connected with lift platform 6's bottom, trigger segment 10 be used for with travel switch 11 effects, the type that closes normally that this application adopted forms the switch, trigger segment 10 to keeping away from 11 lateral buckling of travel switch, for example when lift platform 6 does not rise, then linkage segment 9 and three formation switch contact, it is the disconnection to form the switch, when lift platform 6 rises the back, linkage segment 9 separates with travel switch 11, forms the switch and triggers segment 10 contacts, then forms the switch closure.

Three travel switches 11 are respectively arranged on the mounting columns 7 corresponding to the first sensor assembly 12 and the second sensor assembly 13, the uppermost forming switch is used for detecting whether the lifting platform 6 is lifted in place, and when one of the three forming switches does not detect a signal, the lifting platform 6 is not completely lifted in place, and an inclined state exists. The lifting platform 6 is only shown lowered into position when the mounting posts 7 are in contact with the two lowermost travel switches 11. The intermediate travel switch 11 is suitable for monitoring the lifting process of the lifting platform 6 in order to detect problems in time. When the middle sensor or the uppermost sensor at the first lifting rod 3 detects a signal, but the middle sensor or the uppermost sensor at the second lifting rod 4 does not detect a signal, it indicates that the coupling 5 connecting the first lifting rod 3 and the second lifting rod 4 is damaged. When there is an error in the time points at which the travel switches 11 corresponding to the first lift lever 3 and the second lift lever 4 receive the signals, it indicates that there is a possibility of breakage of the first lift lever 3 and the second lift lever 4. When the motor 2 has an output but the travel switches 11 at the first lifting rod 3 and the second lifting rod 4 do not have detection signals, the output shaft of the motor 2 is broken, and the motor 2 idles.

As shown in fig. 1 to 3, an L-shaped bracket 17 is installed beside the U-shaped mounting block 16, a housing of the stay wire displacement encoder is installed on the bottom plate 1, the other end of the stay wire displacement encoder is connected with the bracket 17 through a bolt, that is, a first stay wire displacement encoder is installed at the first lifting rod 3, and a second stay wire displacement encoder is installed at the second lifting rod 4. Stay wire displacement encoder is connected with the controller electricity, and the controller gathers lifting displacement of lift platform 6 in real time, converts the displacement into speed, just can real-time supervision, in time discovers whether elevation structure has the problem to in time stop, reduce the damage. When the speed or displacement difference of the two is larger, the condition that one lifting rod is broken or the coupling 5 is damaged is indicated, and when the speed of the two stay wire displacement encoders is detected to be obviously lower than the set speed, the condition that the connection part of the motor 2 and the coupling 5 is broken or the motor 2 is locked.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. The utility model provides a lift structure for lift platform, its characterized in that, includes bottom plate (1), motor (2), first lifter (3) and second lifter (4), install on bottom plate (1) motor (2), the both ends of first lifter (3) and second lifter (4) are connected with bottom plate (1) and lift platform (6) respectively, motor (2) with first lifter (3), second lifter (4) are connected through shaft coupling (5), the bottom of lift platform (6) is equipped with sensor assembly, sensor assembly is used for detecting whether lift platform (6) go up and down to target in place, sensor assembly, motor (2) all are connected with the controller electricity.

2. The lifting structure for a lifting platform according to claim 1, characterized in that the sensor assembly comprises a mounting post (7) and a trigger block (8), a travel switch (11) is mounted on the mounting post (7), the trigger block (8) comprises a connecting section (9) and a trigger section (10), the connecting section (9) is connected with the bottom of the lifting platform (6), the trigger section (10) is used for acting with the travel switch (11), and the travel switch (11) is electrically connected with the controller.

3. The lifting structure for lifting platforms as claimed in claim 2, characterised in that the first lifting rod (3) is equipped with a first sensor assembly (12), the second lifting rod (4) is equipped with a second sensor assembly (13), and the first sensor assembly (12) and the second sensor assembly (13) are each provided with at least three travel switches (11) from top to bottom.

4. The lifting structure for the lifting platform as claimed in claim 1, wherein the sensor assembly is a stay wire displacement encoder, the bottom of the lifting platform (6) is provided with a connecting block, the housing of the stay wire displacement encoder is mounted on the bottom plate (1), the other end of the stay wire displacement encoder is connected with the connecting block, and the stay wire displacement encoder is electrically connected with the controller.

5. Lifting structure for lifting platforms, according to claim 4, characterized in that at the first lifting rod (3) a first stay wire displacement encoder is mounted, and at the second lifting rod (4) a second stay wire displacement encoder is mounted.

6. The lifting structure for a lifting platform according to claim 1, characterized in that the bottom of the lifting platform (6) is provided with a U-shaped mounting block (16), the first lifting rod (3) and the second lifting rod (4) are both connected with the mounting block (16), and the sensor assembly is connected with the mounting block (16).

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