CN220745241U - Giant elevating platform - Google Patents

Abstract

The utility model relates to a giant lifting table, which relates to the field of lifting tables, and comprises at least two sets of lifting table components which are arranged side by side, wherein each set of lifting table component comprises a table body and a lifting device, the table body is fixed at the upper end of the lifting device, and the table bodies of two adjacent sets of lifting table components are connected in a sliding manner along the vertical direction. The beneficial effects of the utility model are as follows: the giant elevating platform is spliced by at least two sets of elevating platform components, thereby meeting the area requirement of the elevating platform. Each set of lifting table assembly is lifted by a respective lifting device, and the table bodies of two adjacent sets of lifting table assemblies are connected in a sliding manner along the vertical direction. The control error of the adjacent lifting platform components is compensated through the relative sliding mechanical structure, so that the problem of huge lifting platform faults caused by unbalanced output between two sets of lifting devices generated by the control error is avoided, and the safe operation of the huge lifting platform mechanical system is ensured.

Description

Giant elevating platform

Technical Field

The utility model relates to the field of lifting platforms, in particular to a huge lifting platform.

Background

At present, a stage mechanical lifting platform is usually driven by a motor, and for a giant lifting platform with a large area, one motor may have insufficient driving force, and more than two motors are usually adopted for rigid synchronous driving. However, if there are problems such as poor synchronization accuracy, encoder failure, and assembly errors in two or more motors, the forces of the plurality of motors on the lifting table are unbalanced, and there is a risk of equipment failure.

Disclosure of Invention

The utility model aims to solve the technical problem of how to drive a huge lifting platform so as to avoid equipment failure caused by asynchronous driving.

The technical scheme for solving the technical problems is as follows: the utility model provides a huge elevating platform, includes two at least sets of elevating platform subassembly that set up side by side, every set elevating platform subassembly includes stage body and elevating gear, the stage body is fixed in elevating gear upper end, adjacent two sets elevating platform subassembly the stage body is along vertical direction sliding connection.

The beneficial effects of the utility model are as follows: the giant elevating platform is spliced by at least two sets of elevating platform components, thereby meeting the area requirement of the elevating platform. Each set of lifting table assembly is lifted by a respective lifting device, and the table bodies of two adjacent sets of lifting table assemblies are connected in a sliding manner along the vertical direction. The control error of the adjacent lifting platform components is compensated through the relative sliding mechanical structure, so that the problem of huge lifting platform faults caused by unbalanced output between two sets of lifting devices generated by the control error is avoided, and the safe operation of the huge lifting platform mechanical system is ensured.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the device also comprises a mutual conductance compensation device, at least one mutual conductance compensation device is arranged between two adjacent lifting table assemblies, each mutual conductance compensation device comprises a guide groove and a sliding block, the guide groove is vertically fixed on one of the side walls of the table body, and the sliding block is fixed on the adjacent side wall of the table body and is in sliding fit with the corresponding guide groove.

The beneficial effects of adopting the further scheme are as follows: two adjacent platforms are in sliding connection through a mutual guide compensation device, the sliding block can vertically slide along the guide groove, and the guide groove limits the horizontal displacement of the sliding block.

Further, each transconductance compensation device further comprises an adjusting block, and the adjusting blocks are slidably connected with one side of the guide groove and are positioned.

The beneficial effects of adopting the further scheme are as follows: the adjusting block can adjust the width of the area of the guide groove for accommodating the sliding block, namely, the distance between the two sides of the sliding block and the side wall of the guide groove or the adjusting block is adjusted.

Further, each mutual conductance compensation device further comprises an adjusting screw, one end of the adjusting screw penetrates through the side wall of the guide groove from the outer side of the guide groove and is in threaded connection with the side wall of the guide groove, and one end of the adjusting screw is in butt joint with the adjusting block.

The beneficial effects of adopting the further scheme are as follows: the adjusting block can be pushed to be close to the side wall of the sliding block by rotating the adjusting screw.

Further, each lifting device comprises a motor and a plurality of rigid chain mechanisms, each rigid chain mechanism comprises a rigid chain, a rigid chain guide box and a rigid chain driving wheel, the upper end of the rigid chain is fixedly connected with the bottom surface of the table body, the lower end of the rigid chain is slidably arranged in the rigid chain guide box, the rigid chain guide boxes are fixedly arranged, the rigid chain driving wheels are rotatably connected with the rigid chain guide boxes and are in transmission connection with the middle parts of the rigid chains, and the motor is respectively in transmission connection with each rigid chain driving wheel.

The beneficial effects of adopting the further scheme are as follows: the motor drives a plurality of rigid chain driving wheels, so that the corresponding rigid chain extends upwards out of the rigid chain guide box or retracts downwards into the rigid chain guide box, thereby lifting or lowering the table body.

Further, the plurality of rigid chain mechanisms are symmetrically arranged in the length direction of the table body.

The beneficial effects of adopting the further scheme are as follows: the stress of the table body is uniform.

Further, each lifting device further comprises a plurality of planetary reducers, the planetary reducers are in one-to-one correspondence with the rigid chain driving wheels and are in transmission connection, and the motor is in transmission connection with each rigid chain driving wheel through the planetary reducers.

Further, the upper end of each rigid chain is also provided with a load sensor.

The beneficial effects of adopting the further scheme are as follows: and a load sensor is arranged at the top end of each rigid chain to detect load, so that overload is prevented, and the safety is high.

Further, each lifting table assembly further comprises a herringbone support, the upper end of the herringbone support is hinged with the table body, and the lower end of the herringbone support is fixedly installed.

The beneficial effects of adopting the further scheme are as follows: the herringbone support is arranged to guide the lifting process of the table body, and the table body is guided through the combined action of the herringbone support and the mutual guide compensation device. And moreover, the problem that the table body spliced side scissor struts cannot be installed is solved by adopting the herringbone strut guide.

Further, each set of lifting table assembly further comprises a table top, and the table top is fixed on the table body.

Drawings

FIG. 1 is a front view of a giant lift platform of the present utility model, not shown in the rear side configuration;

FIG. 2 is a left side view of the giant elevating platform of FIG. 1, showing the platform body in two-dot chain line for illustrating the position of the platform body after lowering;

FIG. 3 is a top view of the giant lift platform of FIG. 1;

FIG. 4 is an enlarged view of a portion of the transconductance compensating device of FIG. 3;

FIG. 5 is a top view of the lifting device of the giant lift platform of FIG. 1.

In the drawings, the list of components represented by the various numbers is as follows:

1. a lifting table assembly; 2. a table body; 3. a transconductance compensation device; 4. a guide groove; 5. a slide block; 6. an adjusting block; 7. adjusting a screw; 8. a rigid chain; 9. a rigid chain guide box; 10. a motor; 11. a planetary reducer; 12. a herringbone support; 13. a table top; 14. a commutator; 15. a universal rod; 16. a coupling; 17. a hydraulic brake.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

As shown in fig. 1-5, the present embodiment provides a giant elevating platform, which includes at least two sets of elevating platform assemblies 1 disposed side by side, each set of elevating platform assemblies 1 includes a platform body 2 and a lifting device, the platform body 2 is fixed at the upper end of the lifting device, and the platform bodies 2 of two adjacent sets of elevating platform assemblies 1 are slidingly connected along the vertical direction.

The giant elevating platform is spliced by at least two sets of elevating platform components 1, thereby meeting the area requirement of the elevating platform. Each set of lifting table assembly 1 is lifted by a respective lifting device, and the table bodies 2 of two adjacent sets of lifting table assemblies 1 are connected in a sliding manner along the vertical direction. The control error of the adjacent lifting platform assemblies 1 is compensated through the relative sliding mechanical structure, so that the problem of huge lifting platform faults caused by unbalanced output between two sets of lifting devices generated by the control error is avoided, and the safe operation of the huge lifting platform mechanical system is ensured.

Specifically, the giant elevating platform structure is divided into two parts or a plurality of parts in the narrow side direction (width direction), the adjacent platform bodies 2 are connected in a sliding way, the constraint in the height direction is released, and the synchronization error of the two adjacent elevating devices is compensated.

The "giant" of the giant elevating platform refers to an elevating platform with a large area in the horizontal direction, which is difficult to be driven by only one motor or driving device to realize elevation. In one embodiment, as shown in fig. 3, the planar size of the lifting platform (two platform bodies 2 are added together) is 16mx10.5m, the weight of the platform surface of the giant lifting platform is 22t, the weight of the giant lifting platform is 95t, the static load of the platform surface of the giant lifting platform is 60t, and the dynamic load of the platform surface of the giant lifting platform is 35t.

Specifically, the platform body 2 is of a truss structure welded by square tubes, and has good rigidity and light weight. Alternatively, the table body 2 may take other forms.

Optionally, the outermost sides of all the table bodies 2 of the giant elevating table are also provided with anti-shearing safety edges, so that the safety is ensured.

On the basis of any one of the above schemes, the device further comprises a mutual conductance compensation device 3, at least one mutual conductance compensation device 3 is arranged between two adjacent lifting table assemblies 1, each mutual conductance compensation device 3 comprises a guide groove 4 and a sliding block 5, the guide groove 4 is vertically fixed on one of the side walls of the table body 2, and the sliding block 5 is fixed on the adjacent side wall of the table body 2 and is in sliding fit with the corresponding guide groove 4.

Two adjacent table bodies 2 are in sliding connection through a mutual guide compensation device 3, a sliding block 5 can vertically slide along a guide groove 4, and the guide groove 4 limits the horizontal displacement of the sliding block 5.

Specifically, the transconductance compensation device 3 connects the two platforms 2 into a whole in the horizontal direction, and the two platforms 2 can slide relatively in the vertical direction, so that the operation of the giant elevating platform is not affected when the two platforms 2 are not synchronous in elevation.

When a plurality of mutual conductance compensating devices 3 are arranged between two adjacent lifting platform assemblies 1, the mutual conductance compensating devices 3 are arranged at intervals. As shown in fig. 3, in one specific example, four transconductance compensation devices 3 are disposed between two adjacent sets of elevating platform assemblies 1 at intervals along the length direction of the elevating platform assemblies 1.

Optionally, the guide groove 4 is a T-shaped groove or a dovetail groove, and the slider 5 is an adaptive T-shaped block or dovetail block. In one specific example, the guide groove 4 is made of QAl9-4, and the sliding block 5 is a T-shaped block with a smooth processed surface.

On the basis of any one of the above schemes, as shown in fig. 4, each transconductance compensation device 3 further comprises an adjusting block 6, and the adjusting block 6 is slidably connected and positioned with one side of the guide groove 4.

The adjusting block 6 can adjust the width of the area of the guide groove 4 in which the sliding block 5 is accommodated, that is, adjust the distance between the two sides of the sliding block 5 and the side wall of the guide groove 4 or the adjusting block 6.

Specifically, the adjusting block 6 is slidably connected to one side of the guide groove 4, and slides to the other side close to or far from the guide groove 4.

Further, each transconductance compensation device 3 includes two adjusting blocks 6, and the two adjusting blocks 6 are respectively slidably disposed at two sides of the guide groove 4.

On the basis of any one of the above schemes, each transconductance compensation device 3 further comprises an adjusting screw 7, one end of the adjusting screw 7 passes through the side wall of the guide groove 4 from the outer side of the guide groove 4 and is in threaded connection with the side wall of the guide groove 4, and one end of the adjusting screw 7 is abutted against the adjusting block 6.

By rotating the adjusting screw 7, the adjusting block 6 can be pushed to approach the side wall of the slider 5.

Specifically, when the guide groove 4 is a T-shaped groove, the adjusting block 6 is a U-shaped block adapted to the shape of the side wall thereof; when the guide groove 4 is a dovetail groove, the adjusting block 6 is a V-shaped block which is matched with the shape of the side wall of the adjusting block.

On the basis of any one of the above schemes, each lifting device comprises a motor 10 and a plurality of rigid chain mechanisms, each rigid chain mechanism comprises a rigid chain 8, a rigid chain guide box 9 and a rigid chain driving wheel, the upper end of the rigid chain 8 is fixedly connected with the bottom surface of the table body 2, the lower end of the rigid chain 8 is slidably arranged in the rigid chain guide box 9, the rigid chain guide box 9 is fixedly arranged (for example, fixed on the ground), and the rigid chain driving wheels are rotationally connected with the rigid chain guide box 9 and are in transmission connection with the middle part of the rigid chain 8, and the motor 10 is respectively in transmission connection with each rigid chain driving wheel.

The motor 10 drives a plurality of rigid chain driving wheels so that the corresponding rigid chain 8 extends upward out of the rigid chain guide box 9 or retracts downward into the rigid chain guide box 9, thereby lifting or lowering the table body 2.

Wherein, the rigid chain 8 has rigidity after being straightened and can lift the table body 2, the structure and the action principle of the rigid chain mechanism can be realized by adopting the prior art, for example, a rigid chain lifting mechanism in patent CN 108386022A; patent CN102182791B rigid drive chain.

Alternatively, the lifting device may be a hydraulic cylinder, an air cylinder or a scissor lift mechanism.

In any of the above embodiments, the plurality of rigid chain mechanisms are symmetrically arranged in the longitudinal direction of the table body 2. Thus, the table body 2 is uniformly stressed.

On the basis of any one of the above schemes, each lifting device further comprises a plurality of planetary reducers 11, the planetary reducers 11 are in one-to-one correspondence with the rigid chain driving wheels and are in transmission connection, and the motor 10 is in transmission connection with each rigid chain driving wheel through the planetary reducers 11.

In one specific example, as shown in fig. 5, for each lifting device: the motor 10 is fixedly arranged and correspondingly positioned in the middle of the length direction of the table body 2, and an incremental encoder is arranged on an output shaft of the motor 10 and used for feeding back the running speed and the position, so that a plurality of lifting devices can realize control synchronization. The output shaft of the motor 10 is in driving connection with the first commutator 14, and a hydraulic brake 17, which is a first brake, is arranged between the output shaft of the motor 10 and the first commutator 14. The first commutator 14 is connected to a second commutator 14 located correspondingly in the middle of the width direction of the table body 2. The second reverser 14 outputs power to the left and right sides respectively, taking a left side structure as an example, the second reverser 14 is connected to the third reverser 14, and a hydraulic brake 17 is arranged between the second reverser 14 and the third reverser 14, which is a second brake, so that the requirement of configuring double brakes on the stage lifting platform is met. The third commutator 14 outputs power to the two rigid chain mechanisms respectively, meanwhile, the third commutator 14 also outputs power to the fourth commutator 14 through the universal rod 15, and the fourth commutator 14 is connected to the other two rigid chain mechanisms through the two couplings 16 respectively. Each rigid chain mechanism is directly connected to one planetary reducer 11. That is, in the above specific example, the motor 10 drives eight rigid chain mechanisms simultaneously.

On the basis of any one of the above schemes, the upper end of each rigid chain 8 is also provided with a load sensor.

The top end of each rigid chain 8 is provided with a load sensor for detecting load, overload is prevented, and safety is high.

On the basis of any one of the above schemes, each lifting platform assembly 1 further comprises a herringbone support 12, the upper end of the herringbone support 12 is hinged with the platform body 2, and the lower end of the herringbone support 12 is fixedly installed.

The herringbone support 12 is arranged to guide the lifting process of the table body 2, and the table body 2 is guided by coaction with the mutual guide compensation device 3. Moreover, the problem that the scissors support on the splicing side (the side adjacent to other table bodies 2) of the table body 2 cannot be installed is solved by adopting the herringbone support 12 for guiding.

Specifically, the herringbone strut 12 includes a long arm, a short arm, a supporting slider, a supporting fixing block and a guide rail, where the guide rail is fixedly disposed (e.g., fixed on the ground), the upper end of the long arm is hinged to the table body 2, the lower end of the long arm is hinged to the supporting slider, the supporting slider is slidably connected to the guide rail, the upper end of the short arm is hinged to the middle of the long arm, and the lower end of the short arm is hinged to the supporting fixing block which is fixedly disposed.

In one specific example, as shown in fig. 5, the long sides of the two tables 2 are arranged side by side, and the long sides of the two tables 2 away from each other are respectively provided with a chevron 12, and the chevron 12 is parallel to the long sides. One of the short sides of each table body 2 is provided with a chevron 12, and the two chevron 12 positioned at the short sides are respectively arranged on the short sides of the opposite sides of the two table bodies 2 (for example, one chevron 12 is arranged at the short side of the left side of one table body 2, and one chevron 12 is arranged at the short side of the right side of the other table body 2). Thereby ensuring that the installation space of the herringbone struts can be ensured even though the total length of the herringbone struts 12 is larger than the width of the short sides of the table body 2 when the table body 2 is in the low position.

On the basis of any one of the above schemes, each lifting table assembly 1 further comprises a table top 13, and the table top 13 is fixed on the table body 2.

In the description of the present utility model, it should be noted that the terms "length," "width," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

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

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. The giant elevating platform is characterized by comprising at least two sets of elevating platform assemblies (1) which are arranged side by side, wherein each set of elevating platform assemblies (1) comprises a platform body (2) and an elevating device, the platform bodies (2) are fixed at the upper ends of the elevating devices, and the platform bodies (2) of two adjacent sets of elevating platform assemblies (1) are connected in a sliding mode along the vertical direction.

2. A giant elevating platform according to claim 1, further comprising a mutual conductance compensating device (3), at least one mutual conductance compensating device (3) is arranged between two adjacent elevating platform assemblies (1), each mutual conductance compensating device (3) comprises a guide groove (4) and a sliding block (5), the guide groove (4) is vertically fixed on one of the side walls of the platform body (2), and the sliding block (5) is fixed on the adjacent side wall of the platform body (2) and is in sliding fit with the corresponding guide groove (4).

3. A giant elevating platform according to claim 2, wherein each of said transconductance compensating means (3) further comprises an adjusting block (6), said adjusting block (6) being slidingly connected and positioned to one side of said guiding slot (4).

4. A giant elevating platform according to claim 3, wherein each of the mutual conductance compensating devices (3) further comprises an adjusting screw (7), one end of the adjusting screw (7) passes through the side wall of the guide groove (4) from the outer side of the guide groove (4) and is in threaded connection with the side wall of the guide groove (4), and one end of the adjusting screw (7) is abutted with the adjusting block (6).

5. The huge elevating platform according to claim 1, wherein each elevating device comprises a motor (10) and a plurality of rigid chain mechanisms, each rigid chain mechanism comprises a rigid chain (8), a rigid chain guide box (9) and a rigid chain driving wheel, the upper end of the rigid chain (8) is fixedly connected with the bottom surface of the platform body (2), the lower end of the rigid chain (8) is slidingly arranged in the rigid chain guide box (9), the rigid chain guide box (9) is fixedly arranged, the rigid chain driving wheel is rotatably connected with the rigid chain guide box (9) and is in transmission connection with the middle part of the rigid chain (8), and the motor (10) is respectively in transmission connection with each rigid chain driving wheel.

6. A giant elevating platform as claimed in claim 5, wherein a plurality of the rigid chain mechanisms are symmetrically arranged in the longitudinal direction of the platform body (2).

7. A giant elevating platform as claimed in claim 5, wherein each of said elevating means further comprises a plurality of planetary reducers (11), a plurality of said planetary reducers (11) are disposed in one-to-one correspondence with a plurality of said rigid chain driving wheels and are in driving connection, and said motor (10) is respectively in driving connection with each of said rigid chain driving wheels through said planetary reducers (11).

8. A giant lift table according to claim 5, characterized in that the upper end of each rigid chain (8) is also fitted with a load sensor.

9. A giant elevating platform as claimed in claim 1, wherein each elevating platform assembly (1) further comprises a chevron support (12), the upper end of the chevron support (12) is hinged with the platform body (2), and the lower end thereof is fixedly installed.

10. A jumbo lifting table according to any of claims 1-9, characterized in that each set of lifting table assemblies (1) further comprises a table top (13), which table top (13) is fixed to the table body (2).