Lifting appliance and gantry crane

Abstract

The utility model relates to the technical field of cranes, and provides a lifting appliance and a gantry crane, the lifting appliance comprises a hoisting frame, connecting blocks, shackles, a limiting mechanism, a moving mechanism and a locking mechanism, the hoisting frame is arranged on the gantry crane, the number of the connecting blocks is two, the two connecting blocks are both arranged in the hoisting frame, the two connecting blocks are both provided with lock holes, and the shackles are arranged in the lock holes. The two hook rings are arranged on the two connecting blocks respectively, through grooves are formed in the two hook rings, the two limiting mechanisms are arranged on the two hook rings respectively, the moving mechanism is arranged on the hoisting frame, and the two locking mechanisms are arranged on the two connecting blocks respectively. According to the technical scheme, the problems that in the prior art, when large equipment is lifted, a wide and thick lifting belt is difficult to be completely hung in a lifting appliance, the phenomenon of unhooking is likely to happen, the lifted large equipment is likely to be broken, and danger to operators is high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a sling and a gantry crane. Background Art

[0002] Gantry crane is a variation of bridge crane, also called gantry crane, which is mainly used for loading and unloading operations in outdoor cargo yards, material yards and bulk cargo. Gantry crane has the characteristics of high site utilization, large operating range, wide adaptability and strong versatility. It is widely used in port cargo yards. The spreader in the gantry crane is its important component.

[0003] When the existing slings are in use, wide and thick lifting belts are usually needed to lift some large equipment. When the wide and thick lifting belts are hung in the sling, the space in the sling is smaller than the width of the lifting belts, which easily leads to the lifting belts generally not being hung in the sling, and thus easily leads to the lifting belts limiting plate being able to completely block the lifting belts in the sling. When lifting large equipment, unhooking phenomenon is easy to occur, which not only easily damages the lifted large equipment, but also poses a high risk to the operators. Utility Model Content

[0004] The utility model provides a sling and a gantry crane, which solves the problem in the related art that when lifting large equipment, a wide and thick lifting belt is difficult to be completely hung in the sling and is prone to unhooking, which not only easily damages the lifted large equipment, but also poses a high risk to operators.

[0005] The technical solution of the utility model is as follows: a sling, applied to a gantry crane, comprising: a lifting frame, a connecting block, a hook ring, a limiting mechanism, a moving mechanism and a locking mechanism;

[0006] The lifting frame is arranged on a gantry crane;

[0007] There are two connecting blocks, both of which are arranged in the lifting frame, and both of which are provided with locking holes;

[0008] There are two hook rings, which are respectively arranged on two connecting blocks, and through grooves are formed on the two hook rings;

[0009] There are two limit mechanisms, which are respectively arranged on two hook rings and are used to limit the lifting belt;

[0010] The moving mechanism is arranged on the lifting frame and is used to drive the two connecting blocks to move;

[0011] There are two locking mechanisms, and the two locking mechanisms are respectively arranged on two connecting blocks.

[0012] Preferably, the limiting mechanism comprises: a locking rod, a toothed belt, a driving gear and a driving disc;

[0013] The locking rod is slidably arranged in the hook ring, and a plug hole is provided on the locking rod;

[0014] The toothed belt is fixedly connected to the locking rod, and the toothed belt is arranged in the through groove;

[0015] The driving gear is rotatably arranged on the hook ring, and the driving gear is meshed with the toothed belt;

[0016] The driving disc is fixedly connected to the driving gear.

[0017] Furthermore, the moving mechanism includes: a moving block, a guide rail, a bidirectional screw and a first motor;

[0018] There are two moving blocks, and both of the moving blocks are slidably arranged in the lifting frame;

[0019] There are two guide rails, which are connected to the lifting frame, and two sliding grooves are provided on the two moving blocks, and the two guide rails are respectively slidably arranged in two adjacent sliding grooves;

[0020] The bidirectional screw is rotatably arranged in the lifting frame, and screw holes are provided on the two moving blocks, and the bidirectional screw is threadedly connected in the two screw holes;

[0021] The first motor is arranged on the lifting frame, and the output end of the first motor passes through the lifting frame and is fixedly connected to the bidirectional screw.

[0022] Furthermore, the locking mechanism includes: a locking shaft, a driving screw and a fixing frame;

[0023] The locking shaft is arranged in the locking hole;

[0024] The driving screw is arranged on the locking shaft;

[0025] The fixing frame is fixedly connected to the connecting block, a screw hole is provided on the fixing frame, and the driving screw is threadedly connected in the screw hole.

[0026] As a further solution of the present application, a supporting rib is fixedly connected to the hook ring.

[0027] The working principle and beneficial effects of the utility model are:

[0028] 1. In the utility model, by setting the limiting mechanism, it is convenient to completely put the wide and thick lifting belt into the hook ring, thereby preventing the lifting belt from being unhooked.

[0029] 2. In the utility model, the distance between the two moving blocks can be adjusted conveniently by setting the moving mechanism, so as to adapt to the width of the object being lifted.

[0030] 3. In the present invention, the locking mechanism is provided to facilitate fixing and limiting the position of the locking rod when it is locked.

[0031] 4. In the utility model, through the cooperation among the lifting frame, the connecting block, the hook ring, the limiting mechanism, the moving mechanism and the locking mechanism, it is convenient to completely lock the wide and thick large lifting belt into the hook ring, effectively preventing the lifting belt from being unhooked, improving the lifting efficiency and ensuring the safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0034] Figure 2 It is a structural schematic diagram of the limiting mechanism, moving mechanism and locking mechanism of the utility model;

[0035] Figure 3 It is a structural schematic diagram of the limiting mechanism, the moving mechanism and the locking mechanism of the utility model from another angle;

[0036] Figure 4 It is a structural schematic diagram of the limiting mechanism of the utility model.

[0037] In the figure: 1. gantry crane; 2. lifting frame; 3. connecting block; 4. hook ring; 5. locking rod; 6. toothed belt; 7. driving gear; 8. driving plate; 9. moving block; 10. guide rail; 11. bidirectional screw; 12. first motor; 13. locking shaft; 14. driving screw; 15. fixing frame; 16. supporting ribs. DETAILED DESCRIPTION

[0038] The following will be combined with 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 of 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.

[0039] like Figure 1~Figure 4As shown, this embodiment proposes a lifting device, which is applied to a gantry crane 1, including: a lifting frame 2, a connecting block 3, a hook ring 4, a limiting mechanism, a moving mechanism and a locking mechanism, the hook ring 4 is fixedly connected with a supporting rib 16, the lifting frame 2 is arranged on the gantry crane 1, there are two connecting blocks 3, the two connecting blocks 3 are both arranged in the lifting frame 2, the two connecting blocks 3 are both provided with locking holes, there are two hook rings 4, the two hook rings 4 are respectively arranged on the two connecting blocks 3, and the two hook rings 4 are both provided with through grooves, through the cooperation between the lifting frame 2, the connecting block 3, the hook ring 4, the limiting mechanism, the moving mechanism and the locking mechanism, it is convenient to completely lock a wide and thick large lifting belt into the hook ring 4, effectively preventing the lifting belt from being unhooked, improving the lifting efficiency while ensuring the safety of the operator.

[0040] Among them, there are two limiting mechanisms, which are respectively arranged on two hook rings 4 for limiting the lifting belt. The limiting mechanism includes: a locking rod 5, a toothed belt 6, a driving gear 7 and a driving disk 8. The locking rod 5 is slidably arranged in the hook ring 4, and a plug hole is opened on the locking rod 5. The toothed belt 6 is fixedly connected to the locking rod 5, and the toothed belt 6 is arranged in a through groove. The driving gear 7 is rotatably arranged on the hook ring 4, and the driving gear 7 is meshed with the toothed belt 6. The driving disk 8 is fixedly connected to the driving gear 7. Specifically, the driving disk 8 is rotated by the operator, thereby driving the driving gear 7 to rotate on the toothed belt 6, thereby driving the toothed belt 6 and the locking rod 5 to move, so that the locking rod 5 is inserted into the lock hole, and then the lifting belt is limited.

[0041] Among them, the moving mechanism is arranged on the lifting frame 2, and is used for driving the two connecting blocks 3 to move. The moving mechanism includes: a moving block 9, a guide rail 10, a bidirectional screw 11 and a first motor 12. There are two moving blocks 9, and the two moving blocks 9 are both slidably arranged in the lifting frame 2. There are two guide rails 10, and the two guide rails 10 are connected in the lifting frame 2. Slide grooves are provided on the two moving blocks 9, and the two guide rails 10 are respectively slidably arranged in each adjacent two slide grooves. The bidirectional screw 11 is rotatably arranged in the lifting frame 2. Screw holes are provided on the two moving blocks 9, and the bidirectional screw 11 is threadedly connected in the two screw holes. The first motor 12 is arranged on the lifting frame 2, and the output end of the first motor 12 passes through the lifting frame 2 and is fixedly connected to the bidirectional screw 11. Specifically, the bidirectional screw 11 is driven to rotate by the first motor 12 arranged on the lifting frame 2, thereby driving the two moving blocks 9 to move relative to each other, and then adjusting the distance between the two hook rings 4.

[0042] Among them, there are two locking mechanisms, which are respectively arranged on the two connecting blocks 3. The locking mechanisms include: a locking shaft 13, a driving screw 14 and a fixing frame 15. The locking shaft 13 is arranged in a locking hole, the driving screw 14 is arranged on the locking shaft 13, the fixing frame 15 is fixedly connected to the connecting block 3, a screw hole is opened on the fixing frame 15, and the driving screw 14 is threadedly connected in the screw hole. Specifically, the operator rotates the driving shaft on the fixing frame 15, thereby driving the locking shaft 13 to be inserted into the insertion hole, and then limiting the locking rod 5.

[0043] In this embodiment, when lifting large equipment, the lifting belt is hung in the two hook rings 4, and then the operator rotates the drive disk 8 to rotate, thereby driving the drive gear 7 to rotate on the toothed belt 6, thereby driving the toothed belt 6 and the locking rod 5 to move, so that the locking rod 5 is inserted into the lock hole, and then the lifting belt is limited. The operator rotates the drive shaft on the fixed frame 15 to rotate, thereby driving the locking shaft 13 to be inserted into the insertion hole, and then the locking rod 5 is limited. Then, the first motor 12 set on the lifting frame 2 drives the bidirectional screw 11 to rotate, thereby driving the two moving blocks 9 to move relative to each other, and then the distance between the two hook rings 4 is adjusted.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting device, used in a gantry crane (1), characterized in that: include: A lifting frame (2), the lifting frame (2) being arranged on the gantry crane (1); A connecting block (3), wherein two connecting blocks (3) are provided, and both connecting blocks (3) are arranged in the lifting frame (2), and both connecting blocks (3) are provided with a locking hole; A hook ring (4), wherein two hook rings (4) are provided, and the two hook rings (4) are respectively arranged on the two connecting blocks (3), and a through groove is provided on the two hook rings (4); A limiting mechanism, wherein two limiting mechanisms are provided, and the two limiting mechanisms are respectively arranged on the two hook rings (4) and are used to limit the lifting belt; A moving mechanism, the moving mechanism being arranged on the lifting frame (2) and being used for driving the two connecting blocks (3) to move; A locking mechanism, wherein two locking mechanisms are provided, and the two locking mechanisms are respectively arranged on the two connecting blocks (3).

2. A sling according to claim 1, characterized in that: The limiting mechanism comprises: A locking rod (5), the locking rod (5) being slidably disposed in the hook ring (4), and the locking rod (5) being provided with an insertion hole; a toothed belt (6), the toothed belt (6) being fixedly connected to the locking rod (5), the toothed belt (6) being arranged in the through groove; a driving gear (7), the driving gear (7) being rotatably disposed on the hook ring (4), the driving gear (7) being meshed with the toothed belt (6); A drive disc (8), wherein the drive disc (8) is fixedly connected to the drive gear (7).

3. A sling according to claim 2, characterized in that: The moving mechanism comprises: A moving block (9), wherein two moving blocks (9) are provided, and both moving blocks (9) are slidably arranged in the lifting frame (2); A guide rail (10), wherein two guide rails (10) are provided, the two guide rails (10) are connected to the lifting frame (2), and the two moving blocks (9) are provided with a slide groove, and the two guide rails (10) are respectively slidably arranged in each of two adjacent slide grooves; A bidirectional screw (11), the bidirectional screw (11) being rotatably disposed in the lifting frame (2), the two moving blocks (9) being provided with screw holes, the bidirectional screw (11) being threadedly connected in the two screw holes; A first motor (12), wherein the first motor (12) is arranged on the lifting frame (2), and an output end of the first motor (12) passes through the lifting frame (2) and is fixedly connected to the bidirectional screw rod (11).

4. A sling according to claim 3, characterized in that: The locking mechanism comprises: A locking shaft (13), the locking shaft (13) being arranged in the locking hole; A driving screw (14), wherein the driving screw (14) is arranged on the locking shaft (13); A fixing frame (15), the fixing frame (15) is fixedly connected to the connecting block (3), a screw hole is provided on the fixing frame (15), and the driving screw rod (14) is threadedly connected in the screw hole.

5. A sling according to claim 4, characterized in that: A supporting rib (16) is fixedly connected to the hook ring (4).

6. A gantry crane, characterized in that: The gantry crane (1) uses a lifting device as described in any one of claims 1 to 5.

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