CN217808526U - Gantry elevator - Google Patents

Abstract

The utility model relates to a lifting device, in particular to a gantry crane, which solves the problem that the stability of a lifting platform in the prior art needs to be improved; the automatic lifting frame comprises a frame body, wherein a motor is arranged at the top of the frame body, the output end of the motor is connected with a speed reducer, universal couplings are symmetrically arranged on two sides of the speed reducer, upper chain wheel shafts are symmetrically arranged on two sides of the top of the frame body, two groups of universal couplings are respectively connected with the upper chain wheel shafts and control the rotation of the upper chain wheel shafts, lower chain wheel shafts are fixedly connected to the side part of the frame body, a lifting table is arranged between the frame bodies, chains are hung on the upper chain wheel shafts, and two ends of the chains are respectively wound around the upper chain wheel shafts and the lower chain wheel shafts and are respectively fixedly connected with the upper end and the lower end of the lifting table; this scheme passes through motor drive universal joint and drives the chain motion, through the elevating platform that drags perpendicular direction to realize the lifting motion, axle box axiality error can be eliminated in universal joint's use, makes the chain drive of both sides more steady, and whole device simple structure, stability are good.

Description

Gantry elevator

Technical Field

The utility model relates to a elevating gear, concretely relates to gantry crane.

Background

The portal frame is a novel small-sized hoisting portal frame developed according to the requirements of carrying equipment, warehouse in and out, hoisting and maintaining heavy equipment and material transportation in daily production of medium and small factories (companies). The method is suitable for manufacturing moulds, automobile repair factories, mines, civil engineering construction sites and occasions needing lifting. The lifting machine is commonly used for material transportation and up-and-down use of constructors in building construction, and achieves lifting mechanization. The manpower can be reduced, the production and operation cost can be reduced, and the working efficiency can be improved.

The existing gantry hoister, particularly equipment used on a workplace, usually adopts a sling mode to hoist a lifting platform to enable the lifting platform to move up and down, has insufficient stability in use, and particularly has obvious shaking in an outdoor strong wind environment, so that a certain improvement space is provided.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model provides a gantry crane to hoist and mount elevating platform stability among the solution prior art remains the problem that improves.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

the utility model provides a gantry elevator, includes the support body, the support body top is provided with the motor, the output of motor is connected with the speed reducer, the bilateral symmetry of speed reducer is provided with universal joint, the bilateral symmetry at support body top is provided with the cochain shaft, and is two sets of universal joint respectively with cochain wheel hub connection and control its rotation, the lateral part fixedly connected with lower sprocket shaft of support body, be provided with the elevating platform between the support body, the epaxial chain that has articulated of cochain shaft, cochain shaft and lower sprocket shaft are walked around respectively to the both ends of chain to be fixed continuous with the upper and lower both ends of elevating platform respectively.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the both sides of cochain shaft are the symmetry respectively and are equipped with first sprocket shaft and second sprocket shaft, cochain shaft passes through the chain and controls first sprocket shaft and second sprocket shaft respectively rather than synchronous rotation, the sprocket shaft is equipped with two sets ofly and is located the below of first sprocket shaft, second sprocket shaft respectively down, first sprocket shaft, second sprocket shaft respectively and be provided with the chain between the sprocket shaft down and carry out synchronous rotation.

Further, the support body includes stand and roof-rack, the stand is equipped with four groups, the fixed lateral part that sets up in the stand of sprocket shaft down, be provided with relative guided way on the stand, the lateral part of elevating platform is provided with and slides complex leading wheel with the guided way.

Furthermore, be provided with the stopping rack on the stand, the lateral part of elevating platform is fixed be provided with stopping rack joint complex stopping claw, the tip of stopping claw is provided with thrust unit.

Furthermore, the guide wheels are provided with an upper group and a lower group on each guide rail.

Furthermore, the chain is respectively connected with the upper end and the lower end of the lifting platform, and at least one end of the chain is provided with an adjusting bolt.

Furthermore, both sides fixedly connected with link of elevating platform, leading wheel, stopping claw and thrust unit all fix on the link.

Furthermore, the adjusting bolt comprises a threaded shaft fixedly connected with the chain, the threaded shaft penetrates through the connecting frame, and two nuts are sleeved on the penetrating part of the threaded shaft.

Further, the pushing device is an air cylinder.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

the principle of this scheme is through motor, speed reducer drive universal joint structure, thereby drives the cochain shaft drive chain motion at top, through dragging a elevating platform through guided way vertical direction to realize the lifting motion, axle box axiality error can be eliminated in top universal joint's use, makes the chain drive of both sides more steady, whole device simple structure, stability are good.

Drawings

Fig. 1 is a schematic structural diagram provided in an embodiment of the present invention;

FIG. 2 is a schematic view of the overall structure of the connector structure shown at A with a portion of the connector structure hidden;

fig. 3 is an enlarged view of a portion a in fig. 2.

In the drawings, the reference numbers indicate the following list of parts:

1. a column; 2. a top frame; 3. a motor; 4. a speed reducer; 5. a universal coupling; 6. a winding wheel shaft; 7. a lower sprocket shaft; 8. a lifting platform; 9. a chain; 10. a first sprocket shaft; 11. a second sprocket shaft; 12. a guide rail; 13. a guide wheel; 14. a backstop rack; 15. a backstop claw; 16. a cylinder; 17. a threaded shaft.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are given in the accompanying drawings. This application 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.

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 application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

It will be understood that spatial relationship terms, such as "under" \823030, "" under "\823030" "," under "\8230", "over", and the like, may be used herein to describe the relationship of one element or feature to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary terms "at 8230, below" and "at 8230, below" may include both upper and lower orientations. In addition, the device may comprise additional orientations (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.

As shown in fig. 1 and 2, the gantry crane comprises a frame body, wherein the frame body comprises four upright posts 1 and a top frame 2, the upright posts 1 are provided with four groups, and a lifting platform 8 is arranged between the upright posts 1. There is motor 3 at the mid-mounting of roof-rack 2, the output of motor 3 is connected with speed reducer 4, the bilateral symmetry of speed reducer 4 is provided with the universal joint 5 that stretches to both sides portion, the bilateral symmetry at support body top is provided with cochain shaft 6, two sets of universal joint 5 pass through flange joint and control its rotation with cochain shaft 6 respectively, sprocket shaft 7 under the lateral part fixedly connected with of stand 1, it has chain 9 to articulate on cochain shaft 6, cochain shaft 6 and lower sprocket shaft 7 are walked around respectively at the both ends of chain 9, and the upper and lower both ends with elevating platform 8 are fixed respectively and link to each other.

The motor 3 rotates to be decelerated under the gear transmission of the speed reducer 4, the universal couplings 5 on two sides are driven to rotate simultaneously, the upper chain wheel shafts 6 on two sides are driven to rotate, the upper chain wheel shafts 6 rotate to drive the chains 9 to move up and down, and the chains 9 lift the lifting platform 8 to be lifted or lowered. The universal couplings 5 on two sides of the speed reducer 4 can eliminate the coaxiality error of the axle box, so that the driving is more stable.

Preferably, the two sides of the upper sprocket shaft 6 are symmetrically provided with a first sprocket shaft 10 and a second sprocket shaft 11 respectively, the upper sprocket shaft 6 controls the first sprocket shaft 10 and the second sprocket shaft 11 to rotate synchronously with the first sprocket shaft and the second sprocket shaft 11 through a chain 9 respectively, the lower sprocket shaft 7 is provided with two groups and is located below the first sprocket shaft 10 and the second sprocket shaft 11 respectively, and the chains 9 are arranged between the first sprocket shaft 10 and the second sprocket shaft 11 and the lower sprocket shaft 7 to rotate synchronously.

The lower sprocket shaft 7 is preferably located directly below the first sprocket shaft 10 and the second sprocket shaft 11. Four groups of chains 9 formed are respectively butted with four corners of the lifting platform 8, so that the lifting platform 8 can run more stably up and down. The chain 9 is the dislocation set in first sprocket shaft 10, second sprocket shaft 11 department, and first sprocket shaft 10 sets up with the chain 9 of going up chain shaft 6, lower sprocket shaft 7 tandem respectively promptly, and second sprocket shaft 11 sets up with the chain 9 of going up chain shaft 6, lower sprocket shaft 7 tandem respectively.

Specifically, the lower sprocket shaft 7 is fixedly provided on a side portion of the column 1. In order to improve the fixing effect of the lifting platform 8 and the upright post 1, the upright post 1 is provided with a relative guide rail 12, the side part of the lifting platform 8 is provided with a guide wheel 13 which is in sliding fit with the guide rail 12, the lifting platform 8 moves up and down and slides on the guide rail 12 by virtue of the guide wheel 13, and the lifting platform 8 can be stable and reliable by virtue of the fixed rail fit.

In the scheme, the stand column 1 is provided with the stopping rack 14, the side part of the lifting platform 8 is fixedly provided with the stopping claw 15 in clamping fit with the stopping rack 14, and the end part of the stopping claw 15 is provided with the pushing device. After the lifting platform 8 moves to the designated position, the pushing device pushes the stopping claw 15 to extend out, the stopping claw 15 is clamped with the stopping rack 14 to form locking, and the safety and the stability of the lifting platform 8 are improved. The pushing means employs a pneumatic cylinder 16.

Preferably, the guide wheels 13 are arranged on each guide rail 12 in an upper group and a lower group, so that the fixed matching between the lifting platform 8 and the upright post 1 is further improved, and the stability of the lifting platform is improved.

In order to improve the independence of the lifting platform 8, connecting frames are fixedly connected to the two sides of the lifting platform 8, and the guide wheels 13, the backstop claws 15 and the air cylinders 16 are all fixedly arranged on the connecting frames. The connecting frame is provided with a plurality of partition plates and connecting shafts for fixing the guide wheel 13, the backstop claw 15, the air cylinder 16 and the chain 9.

Specifically, the chain 9 is connected with the upper end and the lower end of the connecting frame respectively, and at least one end of the chain is provided with an adjusting bolt. The adjusting bolt can change the tightness degree of the chain 9 and can be conveniently detached to replace the chain 9. The adjusting bolt comprises a threaded shaft 17 fixedly connected with the chain 9, the threaded shaft 17 penetrates through the connecting frame, and two nuts are sleeved on the penetrating part of the threaded shaft 17 for locking.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

the principle of this scheme is through motor 3, 4 drive universal joint 5 structures of speed reducer, thereby drives the cochain shaft 6 drive chain 9 motion at top, through dragging a elevating platform 8 through 12 vertical direction of guided way to realize the lifting motion, axle box axiality error can be eliminated in top universal joint 5's use, makes the chain 9 drive of both sides more steady, whole device simple structure, stability are good.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (9)

1. The utility model provides a gantry elevator, a serial communication port, including the support body, the support body top is provided with the motor, the output of motor is connected with the speed reducer, the bilateral symmetry of speed reducer is provided with universal joint, the bilateral symmetry at support body top is provided with the cochain shaft, and is two sets of universal joint respectively with cochain hub connection and control its rotation, the lateral part fixedly connected with lower sprocket shaft of support body, be provided with the elevating platform between the support body, the epaxial chain that has articulated of cochain shaft, cochain shaft and lower sprocket shaft are walked around respectively to the both ends of chain to be fixed continuous with the upper and lower both ends of elevating platform respectively.

2. The gantry crane of claim 1, wherein the upper sprocket shaft is symmetrically provided with a first sprocket shaft and a second sprocket shaft at two sides thereof, the upper sprocket shaft controls the first sprocket shaft and the second sprocket shaft to rotate synchronously with the first sprocket shaft and the second sprocket shaft respectively through chains, the lower sprocket shaft is provided with two groups and is respectively located below the first sprocket shaft and the second sprocket shaft, and the chains are arranged between the first sprocket shaft and the lower sprocket shaft for synchronous rotation.

3. The gantry crane according to claim 1, wherein the frame body comprises four sets of columns and a top frame, the lower chain wheel shaft is fixedly arranged on the side portion of the column, the column is provided with opposite guide rails, and the side portion of the lifting platform is provided with guide wheels in sliding fit with the guide rails.

4. The gantry crane according to claim 3, wherein a stopping rack is arranged on the upright post, a stopping claw clamped and matched with the stopping rack is fixedly arranged on the side of the lifting platform, and a pushing device is arranged at the end of the stopping claw.

5. Gantry crane according to claim 3, characterized in that the guide wheels are arranged in two groups one above the other on each guide rail.

6. The gantry crane of claim 4, wherein the chains are respectively connected to the upper and lower ends of the lifting platform, and at least one end is provided with an adjusting bolt.

7. The gantry crane of claim 6, wherein the two sides of the lifting platform are fixedly connected with a connecting frame, and the guide wheel, the stopping claw and the pushing device are fixedly arranged on the connecting frame.

8. The gantry crane of claim 7, wherein the adjusting bolt comprises a threaded shaft fixedly connected with the chain, the threaded shaft passes through the connecting frame, and two nuts are sleeved on the part of the threaded shaft passing through the connecting frame.

9. A gantry crane according to claim 4, wherein the pushing means is a cylinder.

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