Lifting appliance for metal block hoisting equipment

Abstract

The utility model relates to the field of lifting appliances, and discloses a lifting appliance for metal block hoisting equipment, which comprises a component, connecting arms are rotatably connected to two sides of the lower part of the component, a support arm b is hinged to the outer side of a group of connecting arms on the left side, a support arm a is hinged to the inner side of a group of connecting arms on the right side, and the middle parts of the support arm a and the support arm b are mutually hinged; fixing pieces are arranged on the lower portions of the supporting arm a and the supporting arm b, and adjusting assemblies are arranged on the inner walls of the fixing pieces; the adjusting assembly comprises a movable supporting piece connected to the inner wall of the fixing piece in a sliding mode, and a sliding rail is fixedly connected to the outer side of the movable supporting piece. According to the utility model, the bidirectional lead screw and the worm and gear structure of the adjusting assembly are matched with the threaded sleeve and the rotating worm to drive the bidirectional lead screw to rotate and drive the movable supporting pieces to slide in the fixed piece, so that the distance between the two movable supporting pieces is adjusted, the lifting requirements of metal blocks with different sizes are met, and the universality of the lifting appliance is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lifting appliance field especially relates to a lifting appliance for metal block hoisting equipment. BACKGROUND

[0002] In modern industrial production, the hoisting operation of metal block is a frequent and key link, and is widely used in metallurgy, machinery manufacturing, building and many other fields. With the rapid development of industry, the specifications and shapes of metal blocks are increasingly diversified, which puts higher and higher requirements on the performance of lifting appliances for hoisting equipment.

[0003] Traditional metal block hoisting appliances are often designed for metal blocks of specific shapes and sizes, for example, some common clamp type lifting appliances have fixed jaw sizes, and when facing metal blocks of different specifications, the lifting appliance must be replaced. In the metal processing workshop, multiple specifications of metal blocks often need to be handled, and the lifting appliance needs to be frequently replaced, which reduces the applicability of the lifting appliance. Therefore, a lifting appliance for metal block hoisting equipment is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a lifting appliance for metal block hoisting equipment, which aims to solve the problem of "fixed jaw size of traditional lifting appliance, need to replace the lifting appliance when facing metal blocks of different specifications, reduce the applicability of the lifting appliance" in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a lifting appliance for metal block hoisting equipment, comprising a component, the lower part of the component is rotatably connected with connecting arms on both sides, a group of connecting arms on the left side is hingedly connected with a support arm b outside, a group of connecting arms on the right side is hingedly connected with a support arm a inside, the middle parts of the support arm a and the support arm b are hingedly connected with each other, the lower parts of the support arm a and the support arm b are provided with fixing pieces, and the inner walls of the fixing pieces are provided with adjusting assemblies.

[0006] The adjusting assembly comprises a moving support connected with the inner wall of the fixing piece through sliding, the outer side of the moving support is fixedly connected with a sliding rail, the inner wall of the fixing piece is provided with a sliding groove, the sliding rail is slidingly connected with the inner wall of the sliding groove, the inner wall of the fixing piece is divided into two groups of partitions, the inner wall of the partition is provided with a double lead screw through a bearing, the double lead screw is rotatably connected with the inner wall of the moving support, the middle part of the double lead screw is provided with a worm gear, the upper part of the worm gear is engaged with a worm, and the worm is rotatably connected with the inner wall of the fixing piece.

[0007] Further description of the above technical scheme:

[0008] The adjusting assembly further comprises a threaded sleeve, the threaded sleeve is fixedly connected with the inner wall of the moving support, and the double lead screw is threadedly connected with the inner wall of the threaded sleeve.

[0009] As a further description of the above technical solutions:

[0010] The reinforcing rib is arranged on the inner wall of the side of the mobile support close to the sliding groove, and the bidirectional lead screw penetrates the reinforcing rib.

[0011] As a further description of the above technical solutions:

[0012] The end of the worm away from the worm wheel is arranged in a hexagonal shape.

[0013] As a further description of the above technical solutions:

[0014] The outer side of the mobile support and the middle part of the fixed part are both provided with a contact pad.

[0015] As a further description of the above technical solutions:

[0016] The mobile support is arranged in a central point symmetry with the bidirectional lead screw.

[0017] As a further description of the above technical solutions:

[0018] The outer side of the fixed part is provided with a protection assembly, the protection assembly comprises a protection cover fixedly installed on the outer side of the fixed part through a hinge, and the protection cover is fixedly installed on the fixed part through a buckle.

[0019] As a further description of the above technical solutions:

[0020] The protection assembly further comprises a partition frame, the partition frame is fixedly connected to the outer side of the fixed part, and the worm is located at the central part of the partition frame.

[0021] The utility model has the advantages of the following:

[0022] 1、 the utility model discloses a bidirectional lead screw, worm and gear structure of adjusting assembly, cooperation screw bush, rotates the worm and can drive bidirectional lead screw rotation, drives the mobile support to slide in the fixed part, and then adjusts the distance between two mobile supports, adapts to the hoisting demand of different size metal block, improves the general property of lifting appliance.

[0023] 2、 the utility model discloses the protection cover of protection assembly is installed on the outer side of the fixed part through a hinge, and is fixed through a buckle, can prevent dust, sundries from entering adjusting assembly, avoids affecting its normal operation, simultaneously provides additional protection for the worm, also can prevent the accidental touch of foreign matter to the worm and lead to misoperation. DRAWINGS

[0024] Fig. 1 It is the three-dimensional structure schematic view of the overall device in the utility model;

[0025] Fig. 2 It is the three-dimensional structure schematic view of the adjusting assembly in the utility model;

[0026] Fig. 3 This is a schematic diagram of the unfolded three-dimensional structure of the protective component in this utility model.

[0027] Legend:

[0028] 1. Component; 2. Connecting arm; 3. Support arm a; 4. Support arm b; 5. Fixing component; 6. Adjusting component; 61. Moving support component; 62. Slide rail; 63. Slide groove; 64. Partition plate; 65. Two-way lead screw; 66. Worm gear; 67. Worm; 68. Threaded sleeve; 7. Protective component; 71. Protective cover; 72. Divider frame; 73. Buckle; 8. Contact pad. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figs. 1-3 This utility model provides an embodiment of a lifting device for metal blocks, including a component 1 connected to the lifting equipment, which transmits the lifting force of the lifting equipment to the entire lifting device system. The basic working principle of this device is the same as that of a clamp-type lifting device. Connecting arms 2 are rotatably connected to both sides of the lower part of the component 1. The two sets of connecting arms 2 are respectively connected to support arms b4 and support arms a3. The support arm b4 is hinged to the outer side of the left set of connecting arms 2, and the support arm a3 is hinged to the inner side of the right set of connecting arms 2. The middle parts of support arms a3 and support arms b4 are hinged to each other. Through the hinged connection of component 1, connecting arms 2, support arms a3 and support arms b4, the force is transmitted and the direction of the force is changed. During the lifting process, the connecting arms 2, support arms a3 and support arms b4 can flexibly adjust their angles according to the position and shape of the metal block. The lower part of support arms a3 and support arms b4 is provided with fixing parts 5, which mainly serve to connect and fix adjustment components 6, providing a stable installation foundation for adjustment components 6. Adjustment components 6 are provided on the inner wall of fixing parts 5.

[0031] Reference Figs. 1-3The adjusting component 6 includes a movable support 61 slidably connected to the inner wall of the fixed component 5. This movable support 61 can move flexibly within the fixed component 5, contacting the metal block and providing support. By adjusting its position, it adapts to the lifting needs of metal blocks of different sizes, improving the versatility of the lifting device. A slide rail 62 is fixedly connected to the outer side of the movable support 61. A groove 63 is provided on the inner wall of the fixed component 5. The slide rail 62 cooperates with the groove 63 to guide the movement of the movable support 61, ensuring that the movable support 61 can slide smoothly along a predetermined direction, preventing it from shifting or jamming during movement, and ensuring smooth and precise adjustment. The slide rail 62 is slidably connected to the inner wall of the groove 63. Two sets of partitions 64 are provided in the middle of the inner wall of the fixed component 5, mainly used for installing and supporting bearings and a double-acting screw 65. A double-acting screw 65 is installed on the inner wall of the partition 64 through the bearing. When the double-acting screw 65 rotates... Due to the action of the thread, the movable support 61 moves along the axial direction of the double-acting screw 65. The double-acting screw 65's double-acting thread structure allows it to simultaneously drive two symmetrically arranged movable support 61s to move towards or away from each other, thereby meeting the lifting needs of metal blocks of different sizes and improving the versatility of the lifting equipment. The double-acting screw 65 is rotatably connected to the inner wall of the movable support 61. A worm gear 66 is provided in the middle of the double-acting screw 65, and a worm 67 is meshed on the upper part of the worm gear 66. The worm 67 is rotatably connected to the inner wall of the fixed part 5. Utilizing the transmission relationship between the worm gear 66 and the worm 67, the double-acting screw 65 is driven to rotate. The worm gear 66 and worm 67 transmission has a large transmission ratio and a self-locking function, which can achieve precise control of the double-acting screw 65. Furthermore, after the position of the movable support 61 is adjusted, it prevents the double-acting screw 65 from rotating on its own due to external force, ensuring the stability of the movable support 61's position.

[0032] Reference Fig. 1 and Fig. 2The adjusting assembly 6 also includes a threaded sleeve 68, which is fixedly connected to the inner wall of the movable support 61. A double-acting screw 65 is threadedly connected to the inner wall of the threaded sleeve 68, converting the rotation of the double-acting screw 65 into the linear motion of the movable support 61, ensuring stable transmission between the movable support 61 and the double-acting screw 65. A reinforcing rib is provided on the inner wall of the movable support 61 near the slide groove 63, and the double-acting screw 65 passes through the reinforcing rib, increasing the structural stability of the movable support 61. The end of the worm gear 67 furthest from the worm wheel 66 is designed as a regular hexagon, facilitating rotation with tools (such as a wrench) and improving the ease of adjustment. Contact pads 8 are provided on the outer side of the movable support 61 and the middle of the fixed part 5. When the metal block is hoisted, multiple sets of contact pads 8 are in direct contact with the metal block, which can increase the friction between the metal block and the metal block and prevent the metal block from sliding during hoisting. At the same time, the contact pads 8 can also play a buffering role, reducing the rigid collision between the movable support 61 and the metal block, protecting the surface of the metal block from being scratched, reducing the wear of the components, and extending the service life of the hoist. The movable support 61 is symmetrically arranged with the center point of the bidirectional lead screw 65 to ensure uniform support for the metal block during adjustment and to prevent the metal block from tilting or shaking during hoisting.

[0033] Reference Fig. 1 and Fig. 3 A protective component 7 is provided on the outside of the fixing component 5. The protective component 7 includes a protective cover 71 fixedly installed on the outside of the fixing component 5 by a hinge. Its main function is to prevent dust, debris and other objects from entering the interior of the adjusting component 6 and to avoid these impurities affecting the normal operation of the adjusting component 6, such as affecting the rotation of the lead screw. The protective cover 71 is fixedly installed on the fixing component 5 by a buckle 73. The buckle 73 is existing technology and will not be described in detail. The protective component 7 also includes a partition frame 72, which further enhances the protection of the worm gear 67, prevents foreign objects from colliding with the worm gear 67, and ensures the normal rotation of the worm gear 67. The partition frame 72 is fixedly connected to the outside of the fixing component 5, and the worm gear 67 is located in the center of the partition frame 72.

[0034] Working principle: When using this device, if there is a need to lift metal blocks of different sizes, the operator uses a wrench or other tools to rotate the worm 67. Since the worm 67 meshes with the worm wheel 66 and the worm wheel 66 is fixed in the middle of the double-acting screw 65, the rotation of the worm 67 drives the worm wheel 66 and the double-acting screw 65 to rotate together. When the double-acting screw 65 rotates, based on the principle of thread transmission, the moving support 61 moves along the axial direction of the double-acting screw 65 through the threaded sleeve 68.

[0035] Since the movable support 61 is symmetrically arranged with the center point of the bidirectional lead screw 65, the two movable support 61 will move towards or away from each other. At the same time, the slide rail 62 on the outer side of the movable support 61 slides in the slide groove 63 on the inner wall of the fixed part 5, providing guidance for the movement of the movable support 61, ensuring its smooth movement, and accurately adjusting the distance between the two movable support 61 to adapt to the size of the metal block.

[0036] Move the adjusted lifting device above the metal block, aligning the movable support 61 with the appropriate support position on the metal block. Then, start the lifting equipment. Component 1 is connected to the lifting equipment, and the lifting force of the lifting equipment is transmitted to the entire lifting device system through component 1. The connecting arm 2 is hinged to component 1, support arm a3, and support arm b4 respectively. During the lifting process, the angle can be flexibly adjusted according to the position and shape of the metal block, and the force is transmitted to support arm a3 and support arm b4. The middle parts of support arm a3 and support arm b4 are hinged to each other to form a stable structure. The fixing part 5 at their lower part provides a stable installation foundation for the adjustment assembly 6 and transmits the support force to the adjustment assembly 6.

[0037] The contact pad 8 between the outer side of the movable support 61 and the middle of the fixed part 5 contacts the metal block. The contact pad 8 increases the friction between the metal block and the metal block, preventing the metal block from sliding. At the same time, it buffers the rigid collision between the movable support 61 and the metal block, protecting the surface of the metal block. During the entire hoisting process, the protective cover 71 of the protective component 7 is fixed to the outside of the fixed part 5 by the buckle 73 to prevent dust and debris from entering the adjusting component 6. The partition frame 72 protects the worm gear 67 to avoid it from being hit by foreign objects, ensuring the normal operation of the adjusting component 6.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lifting device for metal blocks, comprising component (1), characterized in that: The lower two sides of the component (1) are rotatably connected to connecting arms (2). A support arm b (4) is hinged to the outer side of the connecting arms (2) on the left side, and a support arm a (3) is hinged to the inner side of the connecting arms (2) on the right side. The middle parts of the support arm a (3) and the support arm b (4) are hinged to each other. A fixing part (5) is provided at the lower part of the support arm a (3) and the support arm b (4). An adjustment component (6) is provided on the inner wall of the fixing part (5). The adjustment component (6) includes a movable support (61) slidably connected to the inner wall of the fixed component (5). A slide rail (62) is fixedly connected to the outer side of the movable support (61). A slide groove (63) is provided on the inner wall of the fixed component (5). The slide rail (62) is slidably connected to the inner wall of the slide groove (63). Two sets of partitions (64) are separated on the inner wall of the middle part of the fixed component (5). A double-acting screw (65) is provided on the inner wall of the partition (64) through a bearing. The double-acting screw (65) is rotatably connected to the inner wall of the movable support (61). A worm wheel (66) is provided in the middle of the double-acting screw (65). A worm (67) is meshed on the upper part of the worm wheel (66). The worm (67) is rotatably connected to the inner wall of the fixed component (5).

2. The lifting device for a metal block lifting equipment according to claim 1, characterized in that: The adjustment assembly (6) also includes a threaded sleeve (68), which is fixedly connected to the inner wall of the movable support (61), and the bidirectional lead screw (65) is threadedly connected to the inner wall of the threaded sleeve (68).

3. The lifting device for a metal block lifting equipment according to claim 1, characterized in that: The movable support (61) has a reinforcing rib on the inner wall of the side near the slide groove (63), and the bidirectional screw (65) passes through the reinforcing rib.

4. The lifting device for a metal block lifting equipment according to claim 1, characterized in that: The end of the worm (67) away from the worm wheel (66) is configured as a regular hexagon.

5. A lifting device for a metal block lifting equipment according to claim 1, characterized in that: Contact pads (8) are provided on the outer side of the movable support (61) and the middle of the fixed member (5).

6. The lifting device for a metal block lifting equipment according to claim 1, characterized in that: The movable support (61) is symmetrically arranged with respect to the center point of the bidirectional lead screw (65).

7. The lifting device for a metal block lifting equipment according to claim 1, characterized in that: A protective component (7) is provided on the outside of the fastener (5). The protective component (7) includes a protective cover (71) that is fixedly installed on the outside of the fastener (5) by a hinge. The protective cover (71) is fixedly installed on the fastener (5) by a buckle (73).

8. A lifting device for a metal block lifting equipment according to claim 7, characterized in that: The protective component (7) also includes a partition frame (72), which is fixedly connected to the outside of the fastener (5), and the worm gear (67) is located at the center of the partition frame (72).

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