Lifting device

Abstract

The utility model discloses a lifting device which comprises a cross beam, at least one lifting ring arranged on a first side face of the cross beam, two rotating shafts arranged on a second side face of the cross beam and at least two clamping jaw sets fixedly installed on the rotating shafts, the two rotating shafts are arranged in parallel and connected in a meshed mode through at least one set of gears, and the rotating shafts are fixed to a support. The clamping jaw set is arranged on the cross beam and connected with the cross beam through a support, the clamping jaw set comprises a first clamping jaw and a second clamping jaw, and the first clamping jaw and the second clamping jaw are arranged on two different rotating shafts and used for clamping or releasing a hoisting piece through rotation of the rotating shafts. The lifting ring is arranged on one side of the cross beam, the rotating shafts are arranged on the other side of the cross beam, the clamping jaw sets are arranged on the rotating shafts, the rotating shafts are meshed through the gears, a lifted part is clamped or released by controlling rotation of the rotating shafts, an integral structure is adopted, the lifting balance problem is solved, and the use reliability and convenience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum extruders, in particular to a lifting device. Background Art

[0002] Extruders are divided into two different types: metal extruders and plastic extruders (also known as plastic extruders, extruders, and extruders), which are used in different industrial fields.

[0003] Metal extruder is the most important equipment to realize metal extrusion processing, which is an important method of forming metal by plastic pressure. The main feature of heavy extruder is that it can process metal ingots into tubes, rods and profiles in an instant. The backbone materials used in various fields such as railways, subways, light rails, maglev trains, ships and speedboats are almost all closely related to extrusion processing.

[0004] Aluminum extruder is a type of extruder. The extrusion shaft of aluminum extruder is relatively long. During the lifting process, it is difficult to grasp the balance point of the hoisted object because most of the existing hoists are single-body or combined structures. Tilts or slips often occur, and lifting imbalance is common. During the replacement of the extrusion shaft, it is inconvenient and dangerous to replace because the work is done in a high-temperature and narrow place. Utility Model Content

[0005] The utility model aims to provide a lifting device to solve the problem of unbalanced lifting of the extrusion shaft and improve the reliability of operation.

[0006] To solve the above technical problems, an embodiment of the utility model provides a lifting device, including a crossbeam, at least one lifting ring arranged on the first side of the crossbeam, two rotating shafts arranged on the second side of the crossbeam, and at least two claw groups fixedly installed on the rotating shafts, the two rotating shafts are arranged in parallel and meshingly connected by at least one set of gears, the rotating shafts are fixed to a support and connected to the crossbeam through the support, the claw group includes a first claw and a second claw, the first claw and the second claw are arranged on two different rotating shafts, and are used to clamp or release the lifting member by rotating the rotating shafts.

[0007] Among them, the two ends of the two rotating shafts are flush, the axial direction of the rotating shaft is parallel to the length direction of the beam, and the distance between the rotating shaft on the left and the left end of the beam is equal to the distance between the rotating shaft on the right and the right end of the beam, and the same side of the two rotating shafts is connected to the same support through a bearing.

[0008] Among them, multiple claw groups are located between the two supports, multiple claw groups are distributed on the rotating shaft pair, the first claw of multiple claw groups is located on the same side of the second claw, and the first claw and the second claw of the claw group are welded or clamped to the rotating shaft.

[0009] Wherein, the beam is an I-beam or a triangular beam, the lifting ring is arranged at the top of the I-beam, the rotating shaft is arranged at the bottom of the I-beam, or the lifting ring is installed on the top edge of the triangular beam, and the rotating shaft is arranged on the central axis of the bottom edge of the triangular beam.

[0010] Wherein, the support is a circular support or a semicircular support, and the rotating shaft is connected to the support via a bearing.

[0011] Wherein, the same side of the two rotating shafts is connected to the same support, or the same side of the two rotating shafts is connected to different supports.

[0012] It also includes a clamping plate for connecting the crossbeam and the support, the support and the clamping plate are welded, clamped or bolted, the clamping plate and the crossbeam are welded, clamped or bolted, and the lifting ring and the clamping plate are arranged one by one above and below the crossbeam.

[0013] Among them, it also includes scale lines arranged in the axial direction of the rotating shaft.

[0014] Wherein, the gear is a semicircular gear or a full-circular gear, and the multiple gears are of the same model and equal size.

[0015] It also includes a locking piece arranged at the end of the rotating shaft, which is used to lock the first claw and the second claw of the claw group after they are rotated to a specified position. The locking piece is a spline handle or a disc clamp. The spline handle is clamped with the rotating shaft through a spline arranged at the end of any one of the rotating shafts, or the disc clamp is simultaneously clamped with the gears on the same side of the two rotating shafts.

[0016] Compared with the prior art, the lifting device provided by the embodiment of the utility model has the following advantages:

[0017] The lifting device provided by the embodiment of the utility model is provided with a lifting ring on one side of the beam, a rotating shaft on the other side, and a plurality of claw groups on the rotating shaft. The rotating shaft is engaged by gears, and the rotation of the rotating shaft is controlled to clamp or release the lifting part. An integral structure is adopted to solve the lifting balance problem and increase the reliability and convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A structural schematic diagram of an embodiment of a lifting device provided by the utility model;

[0020] Among them, 1-lifting ring, 2-crossbeam, 3-connecting plate, 4-rotating shaft, 5-gear, 6-support, 7-claw group, 8-spline handle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Please refer to Figure 1 , Figure 1 The present invention is a schematic structural diagram of an embodiment of a lifting device provided by the utility model.

[0023] In a specific embodiment, the lifting device includes a beam 2, at least one lifting ring 1 arranged on the first side of the beam 2, two rotating shafts 4 arranged on the second side of the beam 2, and at least two claw groups fixedly installed on the rotating shafts 4. The two rotating shafts 4 are arranged in parallel and meshedly connected by at least one set of gears 5. The rotating shafts 4 are fixed on a support 6 and connected to the beam 2 through the support 6. The claw group 7 includes a first claw and a second claw. The first claw and the second claw are arranged on two different rotating shafts 4, and are used to clamp or release the lifting parts by rotating the rotating shafts 4.

[0024] By arranging a lifting ring 1 on one side of the crossbeam 2, a rotating shaft 4 on the other side, and arranging a plurality of claw groups 7 on the rotating shaft 4, the rotating shaft 4 is meshed through a gear 5, and the rotation of the rotating shaft 4 is controlled to clamp or release the lifting part. An integral structure is adopted to solve the lifting balance problem and increase the reliability and convenience of use.

[0025] The present application does not limit the setting of the rotating shaft 4. In order to fully utilize the rotating shaft 4, in one embodiment, the two ends of the two rotating shafts 4 are flush, the axial direction of the rotating shaft 4 is parallel to the length direction of the beam 2, and the spacing between the rotating shaft 4 on the left and the left end of the beam 2 is equal to the spacing between the rotating shaft 4 on the right and the right end of the beam 2, and the same side of the two rotating shafts 4 is connected to the same support 6 through a bearing.

[0026] Generally, the rotating shaft 4 is made of the same material and size, which can maximize the performance of the rotating shaft 4 and increase the maximum lifting weight of the hoisting. The parallel setting can fully improve its balance. At the same time, the symmetrical setting on both sides improves the assembly efficiency and reduces the influence of the lifting equipment itself on the balance.

[0027] In the present application, multiple claw groups are provided to grasp objects such as extrusion shafts, thereby improving the efficiency of use, being able to fully fix the objects, and improving the lifting efficiency. The present application does not limit the structure of the claw groups.

[0028] In one embodiment, the plurality of claw groups are located between the two supports 6, the plurality of claw groups are distributed on the rotating shaft 4, the first claw of the plurality of claw groups is located on the same side of the second claw, and the first claw and the second claw of the claw group 7 are welded or clamped to the rotating shaft 4.

[0029] By distributing a plurality of the claw groups 7 on the rotating shaft 4, the symmetry of grasping the object is improved and the balance of transportation is improved.

[0030] It should be pointed out that the first claw of the multiple claw groups in the present application is located on the same side of the second claw for easy installation. It can be symmetrically arranged on the left or right side at the same time, or it can be mirror-symmetrically arranged on the rotating shaft 4. For example, the first claw is located on the outside or inside of the second claw to ensure balanced force in two directions, and the force point and force magnitude tend to be equal.

[0031] In the present application, various components are arranged using a crossbeam 2, and finally a lifting ring 1 and other components are used for overall lifting. The present application does not limit the material, shape, and size of the crossbeam 2. In a later embodiment, the crossbeam 2 is an I-shaped crossbeam 2 or a triangular crossbeam 2, the lifting ring 1 is arranged at the top of the I-shaped crossbeam 2, and the rotating shaft 4 is arranged at the bottom of the I-shaped crossbeam 2, or the lifting ring 1 is installed on the top edge of the triangular crossbeam 2, and the rotating shaft 4 is arranged on the central axis of the bottom edge of the triangular crossbeam 2.

[0032] By adopting the I-shaped crossbeam 2, on the one hand, it can provide a larger installation area and improve the convenience of installation. On the other hand, it can reduce its own weight while ensuring the structural strength, reduce the overall weight of the lifting device, and improve the lifting efficiency. The use of the triangular crossbeam 2 can have a certain stability itself and a larger installation area at the bottom, which can improve the convenience of installation.

[0033] The present application includes but is not limited to the above-mentioned structure and shape of the crossbeam 2, and other shapes may also be used.

[0034] In the present application, the rotating shaft 4 is fixed by the support 6, and is also fixed to the crossbeam 2, and its structure is not limited. The support 6 is a circular support or a semicircular support, and the rotating shaft 4 is connected to the support 6 through a bearing.

[0035] The support 6 is a circular support or a semicircular support, or other shapes, and is connected to the rotating shaft 4 by a bearing, which can facilitate its rotation, reduce rotation friction, and improve the efficiency of grabbing and releasing objects.

[0036] The present application does not limit the specific installation process of the support 6 and the rotating shaft 4. The same side of the two rotating shafts 4 is connected to the same support 6, or the same side of the two rotating shafts 4 is connected to different supports 6.

[0037] That is, the same side of the two rotating shafts 4 can be fixed to the bottom of the beam 2 after being connected to the same support 6, or can be connected to different supports 6 and then fixed to the bottom of the beam 2. The present application does not limit the specific fixing method, and the installation and fixing methods on both sides of the rotating shaft 4 can be the same or different.

[0038] In order to further improve the convenience of the beam 2 and the support 6, in one embodiment, the lifting device also includes a clamping plate for connecting the beam 2 and the support 6, the support 6 is welded, clamped or bolted to the clamping plate, the clamping plate is welded, clamped or bolted to the beam 2, and the lifting ring 1 and the clamping plate are arranged one by one above and below the beam 2.

[0039] By providing a card plate as a medium to connect the cross beam 2 and the support 6 , installation of different supports 6 can be achieved without considering the installation structure of the cross beam 2 .

[0040] In the present application, the claw group is installed on the rotating shaft 4. In order to improve the installation efficiency and the reliability detection of the equipment during use, in one embodiment, the lifting device also includes a scale line arranged in the axial direction of the rotating shaft 4.

[0041] By setting the scale lines, during the installation process, you only need to install it at the corresponding scale line to improve assembly efficiency. In subsequent maintenance, you only need to determine whether it is installed at the specified scale line to determine whether damage occurs.

[0042] It should be pointed out that the present application includes but is not limited to the use of scale lines to improve assembly efficiency. Other methods may also be used, and there is no limitation on the setting method of the scale lines.

[0043] The present application does not limit the structure of the gear 5 , and the gear 5 is a semicircular gear or a full-circular gear, and the multiple gears 5 are of the same model and equal size.

[0044] Since in actual rotation, only rotation is needed, and there is no limitation on the driving method for rotation, and the rotation is not full-circle rotation, therefore, full-circle gears, semi-circle gears, or other gears can be used.

[0045] Furthermore, in order to ensure that the objects can be released in case of accidents during the transportation process, in one embodiment, the lifting device also includes a locking member arranged at the end of the rotating shaft 4, which is used to lock the first claw and the second claw of the claw group 7 after they are rotated to the specified position, and the locking member is a spline handle 8 or a disc clamp. The spline handle 8 is clamped with the rotating shaft 4 through a spline arranged at the end of any one of the rotating shafts 4, or the disc clamp is simultaneously clamped with the gears 5 on the same side of the two rotating shafts 4.

[0046] The locking piece is used to lock the first and second claws of the claw group 7 after they are rotated to the specified position, ensuring that the rotating shaft 4 does not rotate after the object is grasped, and the position of the first and second claws is locked to ensure the reliability of object transportation.

[0047] The locking member is a spline handle 8 or a disc clamp or other structure, and this application does not limit this.

[0048] In one embodiment, the lifting device is composed of two lifting rings 1, a crossbeam 2, two connecting plates 3, two rotating shafts 4, four semicircular supports 6, four semicircular gears 5, two clamping claws, and a spline handle 8. The two lifting rings 1 are installed at both ends of the crossbeam 2, and the two connecting plates 3 are connected to the bottom of the crossbeam 2 by welding. After the two rotating shafts 4 pass through the four supports 6, the supports 6 are welded to the bottom of the connecting plates 3, and the clamping claws are welded to the two shafts respectively. The gears 5 are connected to the two ends of the shaft by keys and mesh with each other, and the spline handle 8 is connected to the shaft end by the spline on one of the shafts. During lifting, the clamping claws are stuck on the extrusion shaft. The handle is removed, the position is adjusted and reinstalled to lock the gear 5 to prevent the clamping claws 7 from loosening due to rotation.

[0049] The above structure has the following advantages:

[0050] 1. The claws are distributed on both sides, and the lifting is balanced and stable;

[0051] 2. Gear structure, lockable and highly reliable;

[0052] 3. Simple structure, light weight and easy operation.

[0053] In summary, the lifting device provided by the embodiment of the utility model is provided with a lifting ring on one side of the beam, a rotating shaft on the other side, and a plurality of claw groups on the rotating shaft. The rotating shaft is engaged through gears, and the rotation of the rotating shaft is controlled to clamp or release the lifting part. An integral structure is adopted to solve the lifting balance problem and increase the reliability and convenience of use.

[0054] The above is a detailed introduction to the lifting device provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A lifting device, characterized in that: It includes a crossbeam, at least one lifting ring arranged on the first side of the crossbeam, two rotating shafts arranged on the second side of the crossbeam, and at least two claw groups fixedly installed on the rotating shafts, the two rotating shafts are arranged in parallel and meshingly connected by at least one group of gears, the rotating shafts are fixed to a support and connected to the crossbeam through the support, the claw group includes a first claw and a second claw, the first claw and the second claw are arranged on two different rotating shafts, and are used to clamp or release the lifting parts through the rotation of the rotating shafts.

2. The lifting device according to claim 1, characterized in that: The two ends of the two rotating shafts are flush, the axial direction of the rotating shaft is parallel to the length direction of the beam, and the distance between the rotating shaft on the left and the left end of the beam is equal to the distance between the rotating shaft on the right and the right end of the beam, and the same side of the two rotating shafts is connected to the same support through a bearing.

3. The lifting device according to claim 1 or 2, characterized in that: The plurality of claw groups are located between the two supports, the plurality of claw groups are distributed on the rotating shaft pair, the first claw of the plurality of claw groups is located on the same side of the second claw, and the first claw and the second claw of the claw group are welded or clamped to the rotating shaft.

4. The lifting device according to claim 3, characterized in that: The crossbeam is an I-shaped crossbeam or a triangular crossbeam, the lifting ring is arranged at the top of the I-shaped crossbeam, the rotating shaft is arranged at the bottom of the I-shaped crossbeam, or the lifting ring is installed on the top edge of the triangular crossbeam, and the rotating shaft is arranged on the central axis of the bottom edge of the triangular crossbeam.

5. The lifting device according to claim 4, characterized in that: The support is a circular support or a semicircular support, and the rotating shaft is connected to the support via a bearing.

6. The lifting device according to claim 5, characterized in that: The same side of the two rotating shafts is connected to the same support, or the same side of the two rotating shafts is connected to different supports.

7. The lifting device according to claim 6, characterized in that: It also includes a clamping plate for connecting the crossbeam and the support, the support and the clamping plate are welded, clamped or bolted, the clamping plate and the crossbeam are welded, clamped or bolted, and the lifting ring and the clamping plate are arranged one by one above and below the crossbeam.

8. The lifting device according to claim 1, characterized in that: It also includes scale lines arranged in the axial direction of the rotating shaft.

9. The lifting device according to claim 1, characterized in that: The gears are semicircular gears or full-circular gears, and the multiple gears are of the same model and the same size.

10. The lifting device according to claim 1, characterized in that: It also includes a locking piece arranged at the end of the rotating shaft, which is used to lock the first claw and the second claw of the claw group after they are rotated to a specified position. The locking piece is a spline handle or a disc clamp. The spline handle is clamped with the rotating shaft through a spline arranged at the end of any one of the rotating shafts, or the disc clamp is simultaneously clamped with the gears on the same side of the two rotating shafts.

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