Portal frame lifting appliance

Abstract

The utility model relates to a portal frame lifting appliance which comprises a portal frame, chain wheels arranged at the two ends of a stand column of the portal frame and a chain connecting the two chain wheels, a motor is further arranged on the portal frame, and the output end of the motor is connected with the chain wheels on the stand column. A connecting plate is connected to the chain, and a clamp for clamping materials is arranged on the connecting plate. When the lifting appliance is used for lifting materials, shaking can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting tools, and specifically, to a gantry crane lifting tool. Background Art

[0002] At present, the lifting tools for lifting stacked carbon blocks in the industry are either installed on overhead cranes or on gantry cranes. For the lifting tool on the gantry crane, the current method is to set a winch at the top of the gantry crane and then connect the lifting tool through a steel wire rope. Due to the mobility of the gantry crane, its working range is wide. However, there are the following technical problems: the lifting tool is connected to the winch through a steel wire rope, and it is easy to shake during the lifting process.

[0003] The prior art CN2017114363019 discloses a positioning fixture for a polishing machine, including a gantry crane; a sliding block is arranged on one side column of the gantry crane, the sliding block is fixedly connected with a nut seat, the nut seat is in threaded connection with a lead screw, the lead screw is fixedly connected with the rotating shaft of a motor through a coupling, the motor is fixedly arranged on the column of the gantry crane, a cross beam is fixedly arranged between the sliding blocks, a connecting plate is fixedly arranged at the bottom of the cross beam, upper and lower clamping plates are respectively arranged on the side parts of the connecting plate, the upper clamping plate is slidably connected with the connecting plate, the lower clamping plate is fixedly connected with the connecting plate, wedge blocks are respectively arranged on the upper and lower clamping plates, the upper and lower clamping plates are connected through adjusting nuts, and a workpiece to be polished is arranged between the upper and lower clamping plates.

[0004] In the prior art, although a positioning fixture is disclosed, the lifting of the lifting tool is realized through a lead screw and a motor, and although the problem of shaking is solved, it cannot lift heavy materials (carbon blocks).

[0005] Therefore, the technical solutions disclosed in the prior art still cannot solve the problem of shaking during the lifting process when the lifting tool is installed on the gantry crane. Summary of the Utility Model

[0006] The technical problem solved by the utility model is to overcome the problems existing in the prior art and provide a gantry crane lifting tool for preventing shaking during lifting.

[0007] The purpose of the utility model is realized through the following technical solutions:

[0008] Disclose a gantry crane lifting tool, the lifting tool includes a gantry crane, sprockets arranged at both ends of the columns of the gantry crane, a chain connecting the two sprockets, and a motor is further arranged on the gantry crane, and the output end of the motor is connected to the sprocket on the column; a connecting plate is fixedly connected to the chain, and a fixture for clamping materials is arranged on the connecting plate.

[0009] Preferably, the connecting plate and the chain are connected through a pin shaft.

[0010] Preferably, the sling further includes a fixture mounting seat, and the fixture mounting seat is connected to the connecting plate.

[0011] Preferably, a guide wheel is further provided on the connecting plate.

[0012] Preferably, a cross beam is further provided on the top of the gantry, and a motor mounting seat convenient for motor installation is provided on the cross beam.

[0013] Preferably, a coupling is further connected between the output end of the motor and the sprocket.

[0014] Preferably, a connecting shaft is further provided between the coupling and the sprocket.

[0015] Preferably, two motors are provided.

[0016] Preferably, walking wheels are provided at the bottom of the gantry.

[0017] Preferably, the motor and the fixture are connected to the background control terminal.

[0018] Compared with the prior art, it has the following beneficial effects:

[0019] 1) A sprocket and a chain are provided on the gantry, and the chain is controlled by a motor to move, so as to realize the up and down lifting of the fixture. It can not only lift heavy materials, but also prevent shaking during the lifting process.

[0020] 2) Walking wheels are provided at the bottom of the gantry, further expanding the working range of the sling.

[0021] 3) Two motors are provided to control the synchronous lifting of the four fixture mounting seats, making the lifting of the sling more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a gantry sling of the present invention;

[0023] Figure 2 is a schematic structural diagram of the gantry in a gantry sling of the present invention;

[0024] Figure 3 is a schematic structural diagram of the connection between the connecting plate and the chain in a gantry sling of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0025] In order to clearly illustrate the technical features of the solution, the present invention will be described in detail below through specific embodiments and in conjunction with its drawings.

[0026] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application may be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0027] In addition, in the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Furthermore, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0028] In the present application, unless otherwise clearly specified and limited, the terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or also a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0029] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0030] Embodiment 1

[0031] As Figures 1 to 3As shown in the figure, a gantry crane is disclosed. The crane includes a gantry 1, sprockets 2 provided at both ends of the columns of the gantry 1, a chain 3 connecting the two sprockets 2, and a motor 4 is also provided on the gantry 1. The output end of the motor 4 is connected to the sprocket 2 on the column. A connecting plate 5 is fixedly connected to the chain 3, and a clamp for clamping materials is provided on the connecting plate 5.

[0032] In this embodiment, the gantry 1 serves as a moving frame and a support frame. The clamp for clamping materials (such as carbon blocks stacked together) is arranged on the gantry 1. By driving the gantry 1 to move, large-range operations can be realized.

[0033] Specifically, the gantry 1 includes four columns. A sprocket 2 can be provided at both ends of the four columns of the gantry 1, and a chain 3 is connected between the two sprockets 2. When the sprocket 2 rotates, it drives the chain 3 to move. A motor 4 is also provided on the gantry 1. The output end of the motor 4 is connected to the sprocket 2 on the column. When the motor 4 starts, it drives the sprocket 2 to rotate, and finally drives the chain 3 to move.

[0034] A connecting plate 5 is connected to the chain 3. The connecting plate 5 moves up and down with the chain 3, and the connecting plate 5 is fixedly connected to the clamp 6.

[0035] Through the gantry 1, the clamp is moved directly above the carbon block. The motor 4 is started, and the chain 3 is driven to move through the sprocket 2, so as to control the clamp to move to the position where the carbon block is to be clamped. Finally, the clamp 6 clamps the carbon block. The motor 4 rotates in reverse, the clamp 6 hoists the carbon block, and finally the movement of the gantry 1 is controlled, so as to realize the clamping and transfer of the carbon block. The four corners of the clamp 6 are all connected to the chain 3 through the connecting block 5. The clamp 6 is stably connected to the chain 3, and the clamp 6 will not shake during the hoisting process.

[0036] At the same time, in this embodiment, the clamp 6 is connected to the gantry 1 through the sprocket 2 and the chain 3, and the structure is firm, so that the crane can meet the handling of heavy materials.

[0037] Embodiment 2

[0038] A gantry crane is disclosed. The crane includes a gantry 1, sprockets 2 provided at both ends of the columns of the gantry 1, a chain 3 connecting the two sprockets 2, and a motor 4 is also provided on the gantry 1. The output end of the motor 4 is connected to the sprocket 2 on the column. A connecting plate 5 is fixedly connected to the chain 3, and a clamp for clamping materials is provided on the connecting plate 5.

[0039] The difference between this embodiment and Embodiment 1 is that: for the convenience of connecting the connecting plate 5 and the chain 3, the two can be connected through a pin shaft 11.

[0040] For the convenience of installing the clamp 6, a clamp mounting seat 7 can also be provided on the connecting plate 5, and the clamp 6 is installed on the clamp mounting seat 7.

[0041] Example 3

[0042] Disclose a gantry crane spreader. The spreader includes a gantry 1, sprockets 2 arranged at both ends of the columns of the gantry 1, a chain 3 connecting the two sprockets 2, and a motor 4 is further arranged on the gantry 1. The output end of the motor 4 is connected to the sprocket 2 on the column; a connecting plate 5 is fixedly connected to the chain 3, and a fixture for clamping materials is arranged on the connecting plate 5.

[0043] The difference between this embodiment and Embodiment 1 is that: after the fixture 6 clamps the material and moves up and down relative to the gantry 1, under the action of the gravity of the fixture 6 and the material, the bottom plate of the connecting plate 5 will be tightly pressed against the chain 3. When the chain 3 moves up and down, it is inevitable that the two will collide and generate noise, and there is also a hidden danger of chain damage. Therefore, a guide wheel adapted to the chain 3 can be arranged on the connecting plate 5.

[0044] Example 4

[0045] Disclose a gantry crane spreader. The spreader includes a gantry 1, sprockets 2 arranged at both ends of the columns of the gantry 1, a chain 3 connecting the two sprockets 2, and a motor 4 is further arranged on the gantry 1. The output end of the motor 4 is connected to the sprocket 2 on the column; a connecting plate 5 is fixedly connected to the chain 3, and a fixture for clamping materials is arranged on the connecting plate 5.

[0046] The difference between this embodiment and Embodiment 1 is that: a cross beam is arranged at the top of the gantry 1, and a motor mounting seat is arranged on the cross beam. The motors 4 are respectively mounted on the motor mounting seats.

[0047] Specifically, two motor mounting seats can be set, and one motor 4 is mounted on each motor mounting seat.

[0048] In this embodiment, the output end of the motor 4 is connected to a coupling 8, and the sprocket 2 is connected to the coupling 8. At the same time, in order to facilitate the connection between the sprocket 2 and the coupling 8, a connecting shaft 9 can also be arranged between the coupling 8 and the sprocket 2.

[0049] The coupling 8 is also called a coupling. It is a mechanical component used to firmly connect the driving shaft and the driven shaft in different mechanisms to rotate together and transmit motion and torque. Sometimes it is also used to connect the shaft to other parts (such as gears, belt pulleys, etc.). It is usually composed of two halves, which are respectively connected by keys or tight fits, fastened to both ends of the two shafts, and then the two halves are connected in some way. The coupling is a prior art, and its specific structure will not be described in detail here.

[0050] Example 5

[0051] Disclose a gantry spreader. The spreader includes a gantry 1, sprockets 2 arranged at both ends of the columns of the gantry 1, a chain 3 connecting the two sprockets 2, and a motor 4 is also arranged on the gantry 1. The output end of the motor 4 is connected to the sprocket 2 on the column; a connecting plate 5 is fixedly connected to the chain 3, and a fixture for clamping materials is arranged on the connecting plate 5.

[0052] The difference between this embodiment and Embodiment 1 is that: four traveling wheels 10 are arranged at the bottom of the gantry 1. Specifically, a connecting seat for connecting the traveling wheels can be connected to the bottom of the column, and the traveling wheels 10 are installed on the connecting seat, and the height of the traveling wheels 10 is lower than the height of the sprocket 2 at the bottom of the column. The rotation and steering of the traveling wheels 10 are controlled by a driving device.

[0053] Embodiment 6

[0054] Disclose a gantry spreader. The spreader includes a gantry 1, sprockets 2 arranged at both ends of the columns of the gantry 1, a chain 3 connecting the two sprockets 2, and a motor 4 is also arranged on the gantry 1. The output end of the motor 4 is connected to the sprocket 2 on the column; a connecting plate 5 is fixedly connected to the chain 3, and a fixture for clamping materials is arranged on the connecting plate 5.

[0055] The difference between this embodiment and the above embodiments is that: in order to realize the automatic lifting of materials, the motor 4, the fixture 6 and the traveling wheels 10 are all communicatively connected to the background control terminal.

[0056] The background control terminal controls the start or operation of the motor 4, the fixture 6 and the traveling wheels 10, so as to realize the automatic movement of the gantry 1 and the automatic clamping of the fixture 6, and finally realize the automatic control of clamping and handling materials, without manual operation, greatly saving labor costs.

[0057] Obviously, the above embodiments are only examples for clearly explaining the technical solutions of the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A gantry crane spreader, characterized in that, The sling includes a gantry, sprockets provided at both ends of the columns of the gantry, a chain connecting the two sprockets, and a motor is also provided on the gantry, and the output end of the motor is connected to the sprocket on the column; a connecting plate is connected to the chain, and a fixture for clamping materials is provided on the connecting plate.

2. The gantry crane spreader according to claim 1, characterized in that, The connecting plate and the chain are connected by a pin shaft.

3. The gantry crane spreader according to claim 1, characterized in that, The sling further includes a fixture mounting seat, the fixture mounting seat is connected to the connecting plate, and the fixture is connected to the fixture mounting seat.

4. A gantry crane spreader according to claim 1, characterized in that, A guide wheel is also provided on the connecting plate.

5. A gantry crane spreader according to claim 1, characterized in that, A cross beam is further provided at the top of the gantry, and a motor mounting seat convenient for motor installation is provided on the cross beam.

6. The gantry crane spreader according to claim 1, characterized in that, A coupling is also connected between the output end of the motor and the sprocket.

7. A gantry crane spreader according to claim 6, characterized in that, A connecting shaft is also provided between the coupling and the sprocket.

8. A gantry crane spreader according to claim 1, characterized in that, Two motors are provided.

9. The gantry crane spreader according to claim 1, characterized in that, Traveling wheels are provided at the bottom of the gantry.

10. A gantry crane spreader according to claim 1, characterized in that, The motor and the fixture are connected to the background control terminal.

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