Hoisting portal frame for concrete prefabricated part machining

Abstract

The utility model relates to a hoisting portal frame for concrete prefabricated part machining. The hoisting portal frame comprises a supporting frame, a hollow supporting sliding sleeve is slidably connected to the supporting frame, and a lifting hook connected with hoisting equipment is arranged on the supporting sliding sleeve; supporting frames are rotationally connected to the left end and the right end of the supporting frame, each supporting frame is of a square structure, and the supporting frames are driven by a first driving assembly to rotate around the supporting frame; two mounting blocks are symmetrically arranged on the left side and the right side of the lower surface of the supporting frame, each mounting block is provided with a set of tongs, each set of tongs comprises a front clamping jaw and a rear clamping jaw which correspond to each other, the upper ends of the two clamping jaws are rotationally connected to the mounting blocks, and the clamping jaws rotate around the mounting blocks through a second driving assembly. Through cooperation of the first driving assembly and the second driving assembly, efficient and safe hoisting and carrying of the prefabricated part are achieved, meanwhile, the structure is simple, operation is convenient and fast, adjustment is flexible, and high practical value is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of sling equipment, and in particular to a lifting gantry for processing precast concrete parts. Background Art

[0002] Lifting equipment is an indispensable tool in the production and processing of precast concrete parts. Traditional lifting equipment often has a single function and is not stable enough for lifting precast parts.

[0003] For example, a "Precast Concrete Component Clamp and Lifting Device," published in Chinese patent literature and with publication number CN215249168U, comprises a first clamp body and a second clamp body. The first clamp body is provided with a first clamping piece and a first connection point; the second clamp body is provided with a second clamping piece and a second connection point. A space is formed between the first and second clamp bodies for clamping the precast component. The first and second clamp bodies are hingedly connected. This lifting device clamps the precast block with the first and second clamps and lifts the precast block, along with the mold, into mid-air. It features a simple structure, easy operation, and increased work efficiency.

[0004] With respect to the above-mentioned related technologies, the inventors found the following defects: 1. It can only achieve simple vertical lifting, and it is difficult to accurately grasp and adjust the position when facing prefabricated parts of different shapes and sizes; 2. The prefabricated parts are clamped only by two clamps. In order to ensure the stability of clamping, a large force needs to be applied to the prefabricated parts, which may cause damage to the prefabricated parts when grasping them, affecting the quality of the prefabricated parts.

[0005] Therefore, it is necessary to design a lifting gantry for concrete prefabricated parts processing that is more efficient, stable and flexible. Utility Model Content

[0006] The utility model mainly aims at the above-mentioned problems existing in the prior art, and provides a lifting gantry frame for processing prefabricated concrete parts, so as to realize more stable and flexible lifting operation of the prefabricated concrete parts.

[0007] The purpose of this utility model is mainly achieved through the following solutions:

[0008] A lifting gantry for processing precast concrete parts comprises a support frame, to which an internal hollow support sleeve is slidably connected, and a hook connected to a lifting device is provided on the support sleeve; both left and right ends of the support frame are rotatably connected to support frames, and the support frame has a "mouth"-shaped structure, and is driven to rotate around the support frame by a first drive assembly; two symmetrical mounting blocks are arranged on the left and right sides of the lower surface of the support frame, and each mounting block is provided with a group of grippers, and each group of grippers includes two corresponding front and rear clamps, and the upper ends of the two clamps are rotatably connected to the mounting block, and the rotation of the clamps around the mounting block is achieved by a second drive assembly.

[0009] Preferably, the support frame is provided with a first telescopic member arranged transversely, the fixed end of the first telescopic member is fixedly installed on one side of the upper surface of the support frame, and the telescopic end of the first telescopic member is fixedly connected to the upper surface of the supporting sleeve.

[0010] Preferably, a slide groove is provided inside the supporting sleeve, the front and rear inner walls of the slide groove are in contact with the front and rear outer walls of the support frame, and the upper and lower inner walls of the slide groove are in contact with the upper and lower outer walls of the support frame.

[0011] Preferably, an opening is provided at the top of the support frame, and a first rotating shaft is provided on both sides of the opening, and a first rotating groove for use with the first rotating shaft is provided on the front and rear side walls of the support frame, and the support frame is rotatably connected between the first rotating shaft and the first rotating groove of the support frame.

[0012] Preferably, the first drive assembly is provided with two groups, corresponding to the support frames at both ends respectively, each group of the first drive assembly includes a drive motor, a first gear and a second gear, the drive motor is installed on the upper surface of the support frame, the first gear is fixedly sleeved on the output end of the drive motor, and the second gear is fixedly sleeved on the outer side wall of one of the first rotating shafts, and the first gear is meshed with the second gear.

[0013] Preferably, a reinforcing rod is provided on the inner wall of the support frame.

[0014] Preferably, the second drive assembly includes a second telescopic member and two gear sets, the two gear sets corresponding to the left and right grippers respectively, and each gear set includes a third gear and a fourth gear that mesh with each other.

[0015] Preferably, a fixing rod is fixedly connected between the two clamping jaws on the front side and the two clamping jaws on the rear side, and the fixed end and the telescopic end of the second telescopic member are rotatably connected to the front and rear fixing rods respectively.

[0016] Preferably, the upper end of the clamping jaw is rotatably connected to the mounting block via a second rotating shaft, and the third gear and the fourth gear are fixedly sleeved on the outer side walls of the two second rotating shafts respectively.

[0017] Preferably, a clamping block is provided on the inner side of the lower portion of the clamping jaw.

[0018] In summary, compared with the prior art, the present invention has the following beneficial technical effects:

[0019] (1) The utility model provides a support sleeve and a first telescopic member, and the support sleeve slides on the support frame. Combined with the telescopic effect of the first telescopic member, the horizontal position of the hook can be accurately adjusted, which is convenient for better coordination with the lifting equipment and adapts to the needs of different lifting points. It is especially suitable for concrete prefabricated parts whose center of gravity is not in the middle. It has high flexibility and a wide range of applications. At the same time, the slide groove of the support sleeve is in close contact with the support frame, which ensures the stability of the sliding process. The overall structure is firm and reliable, and the service life of the equipment is extended.

[0020] (2) The utility model is provided with a support frame and a first drive assembly. The first drive assembly can drive the support frame to rotate up and down around the support frame, so as to facilitate the lifting of the prefabricated parts from the bottom. At the same time, the inner wall of the support frame is provided with a reinforcing rod, which enhances the structural strength of the support frame, so that it can withstand greater weight and external force during the lifting process, thereby improving the stability of the lifting;

[0021] (3) The utility model is provided with two groups of grippers, and the two clamping claws of each group of grippers are rotated by the second driving assembly, which can stably grasp the prefabricated parts to be lifted. The extension and retraction of the second telescopic member drives the fixed rod to move, and then the clamping claws are rotated around the mounting block through the gear group transmission to achieve the clamping and loosening of the prefabricated parts. The clamping block on the inner side of the lower part of the clamping claw can better fix the prefabricated parts to be lifted, prevent the prefabricated parts to be lifted from slipping during the lifting process, and ensure the safety of the lifting process. Moreover, when used in conjunction with the support frame, it can avoid damage to the surface of the prefabricated parts to be lifted, ensure that the quality of the prefabricated parts to be lifted is not affected, and improve the performance of concrete prefabricated parts in construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is the main view of the utility model;

[0024] Figure 3 This is a schematic diagram of the installation of the support frame in the utility model;

[0025] Figure 4 This is a schematic diagram of the installation of the gripper in the utility model;

[0026] Figure 5 It is a schematic diagram of the utility model when in use.

[0027] Figure markings: 1-support frame, 2-support slide, 3-hook, 4-support frame, 5-mounting block, 6-clamping claw, 7-first telescopic member, 8-slide groove, 9-opening, 10-first rotating shaft, 11-first rotating groove, 12-driving motor, 13-first gear, 14-second gear, 15-reinforcement rod, 16-second telescopic member, 17-third gear, 18-fourth gear, 19-fixing rod, 20-second rotating shaft, 21-block, 22-prefabricated part to be lifted. DETAILED DESCRIPTION

[0028] The following is a further detailed description of the technical solution of the present invention through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of the present invention is not limited to the following embodiments, and any form of modification and / or change made to the present invention will fall within the scope of protection of the present invention.

[0029] Example 1:

[0030] like Figure 1 、 2 As shown, the utility model discloses a technical solution, a lifting gantry for processing precast concrete parts, including a support frame 1 with a plate-like structure, a support sleeve 2 with an internal hollow structure being slidably connected to the support frame 1, and a hook 3 connected to the lifting equipment being welded or bolted to the support sleeve 2. The lifting equipment is existing technology, and different lifting equipment can be selected according to the on-site conditions, which will not be described in detail here.

[0031] The left and right ends of the above-mentioned support frame 1 are rotatably connected to the support frame 4, and the support frame 4 is in a "mouth" shape. The two support frames 4 are both arranged longitudinally, and the support frame 4 is driven by the first drive component to rotate up and down around the support frame 1, thereby realizing the lifting and release of the prefabricated part 22 to be lifted.

[0032] Two mounting blocks 5 are symmetrically welded or bolted on the left and right sides of the lower surface of the support frame 1, and a set of grippers are installed on each mounting block 5. Each set of grippers consists of two corresponding front and rear clamps 6. The upper ends of the two clamps 6 are rotatably connected to the mounting block 5, and the second drive assembly is used to realize the rotation of the clamps 6 around the mounting block 5 to achieve the clamping and loosening of the hoisted prefabricated part 22.

[0033] Example 2:

[0034] like Figure 1 、 2As shown, the utility model discloses another technical solution, a lifting gantry for processing precast concrete parts, which is different from Example 1 in that a first telescopic member 7 arranged horizontally is installed on the support frame 1, and the fixed end of the first telescopic member 7 is fixedly installed on the upper surface of the support frame 1 near the right end by a bolt, and the telescopic end of the first telescopic member 7 is fixedly connected to the fixed rod on the upper surface of the support sleeve 2. Through the telescopic movement of the first telescopic member 7, the position of the support sleeve 2 and the hook 3 can be adjusted to meet the needs of different lifting points.

[0035] Specifically, a slide groove 8 is provided inside the support sleeve 2, which runs through the left and right sides. The front and rear inner walls of the slide groove 8 are in contact with the front and rear outer walls of the support frame 1, and the upper and lower inner walls of the slide groove 8 are in contact with the upper and lower outer walls of the support frame 1. The design of the slide groove 8 makes the support sleeve 2 more stable when sliding on the support frame 1, improves the overall stability of the equipment, and can also avoid the shaking of the support frame 1 during lifting.

[0036] Example 3:

[0037] like Figure 1 、 3 As shown, the utility model discloses another technical solution, a lifting gantry for processing precast concrete parts, which is different from Example 1 in that an opening 9 is provided in the middle of the upper part of the above-mentioned support frame 4, and the front and rear side walls of the opening 9 are welded or bolted with a first rotating shaft 10, the first rotating shaft 10 is longitudinally arranged, and the front and rear side walls of the support frame 1 are provided with a first rotating groove 11 used in conjunction with the first rotating shaft 10, and the support frame 4 is rotatably connected between the first rotating shaft 10 and the first rotating groove 11 of the support frame 1.

[0038] Specifically, there are two groups of first drive components, which correspond to the support frames 4 at both ends respectively. Each group of first drive components consists of a drive motor 12, a first gear 13 and a second gear 14. The drive motor 12 is fixedly installed on the upper surface of the support frame 1 by bolts. The first gear 13 is fixedly sleeved on the output end of the drive motor 12, and the second gear 14 is fixedly sleeved on the outer wall of one of the first rotating shafts 10. The first gear 13 is meshed with the second gear 14. The first gear 13 is driven to rotate by the drive motor 12, and then the second gear 14 and the first rotating shaft 10 are driven to rotate, thereby realizing the flipping of the support frame 4.

[0039] Specifically, a reinforcing rod 15 is welded to the inner wall of the support frame 4 , which enhances the strength and stability of the support frame 4 and ensures safety and stability during the lifting process.

[0040] Example 4:

[0041] like Figure 1 、 4As shown, the utility model discloses another technical solution, a lifting gantry for processing precast concrete parts, which is different from Example 1 in that the above-mentioned second drive assembly is composed of a second telescopic member 16 and two sets of gear groups, the two sets of gear groups correspond to the left and right sets of grippers respectively, and each set of gear groups is composed of a third gear 17 and a fourth gear 18 that are meshed with each other. The first telescopic member and the second telescopic member can adopt a push rod motor, a cylinder or a hydraulic cylinder.

[0042] Specifically, a fixing rod 19 is welded or bolted between the two front clamping jaws 6 and the two rear clamping jaws 6 , and the fixed end and the telescopic end of the second telescopic member 16 are rotatably connected to the front and rear fixing rods 19 respectively.

[0043] Specifically, the upper end of the clamping jaw 6 is rotatably connected to the mounting block 5 via the second rotating shaft 20. The second rotating shaft 20 is horizontally arranged, and the third gear 17 and the fourth gear 18 are respectively fixedly mounted on the outer walls of the two second rotating shafts 20. The telescopic movement of the second telescopic member 16 can drive the rotation of the two sets of gear groups and the clamping jaw 6 to achieve the clamping and release of the prefabricated part 22 to be lifted.

[0044] Specifically, such as Figure 5 As shown, a clamping block 21 is integrally provided on the inner side of the lower portion of the clamping jaw 6 , and a rubber buffer pad is bonded to the inner side wall of the clamping block 21 to enhance the clamping force and prevent the preform from slipping.

[0045] The utility model provides a lifting gantry for processing precast concrete parts, which has a supporting sleeve and a first telescopic member, and the supporting sleeve slides on the supporting frame. Combined with the telescopic effect of the first telescopic member, the horizontal position of the hook can be accurately adjusted, which is convenient for better coordination with the lifting equipment and adapts to the needs of different lifting points, especially suitable for precast concrete parts whose center of gravity is not in the middle. It has high flexibility and a wide range of applications. At the same time, the sliding groove of the supporting sleeve is in close contact with the supporting frame, which ensures the stability of the sliding process, the overall structure is firm and reliable, and the service life of the equipment is extended. Through the support frame and the first driving component provided, the first driving component can drive the support frame to rotate up and down around the support frame, which is convenient for lifting the precast part to be lifted from the bottom. At the same time, the inner wall of the support frame is provided with a reinforcing rod to increase The structural strength of the support frame is enhanced, so that it can withstand greater weight and external force during the lifting process, and the stability of the lifting is improved; by setting two groups of grippers, the two claws of each group of grippers are rotated by the second drive component, which can stably grab the prefabricated parts to be lifted, and the extension and contraction of the second telescopic part drives the fixed rod to move, and then the gear group transmission causes the claws to rotate around the mounting block to achieve clamping and loosening of the prefabricated parts. The clamping block on the inner side of the lower part of the claw can better fix the prefabricated parts to be lifted, and prevent the prefabricated parts to be lifted from slipping during the lifting process, thereby ensuring the safety of the lifting process. Moreover, when used in conjunction with the support frame, it can avoid damage to the surface of the prefabricated parts to be lifted, ensure that the quality of the prefabricated parts to be lifted is not affected, and improve the performance of concrete prefabricated parts in construction.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A lifting gantry for processing precast concrete parts, comprising a support frame (1), characterized in that: The support frame (1) is slidably connected to a support sleeve (2) with an internal hollow portion, and the support sleeve (2) is provided with a hook (3) connected to a lifting device; the left and right ends of the support frame (1) are rotatably connected to support frames (4), the support frame (4) is in a "mouth"-shaped structure, and the support frame (4) is driven to rotate around the support frame (1) by a first drive component; two symmetrical mounting blocks (5) are provided on the left and right sides of the lower surface of the support frame (1), and each mounting block (5) is mounted with a group of grippers, each group of grippers including two corresponding front and rear clamping jaws (6), the upper ends of the two clamping jaws (6) are rotatably connected to the mounting block (5), and the second drive component is used to realize the rotation of the clamping jaws (6) around the mounting block (5).

2. The lifting gantry for processing precast concrete parts according to claim 1, characterized in that: The support frame (1) is provided with a first telescopic member (7) arranged transversely, the fixed end of the first telescopic member (7) is fixedly mounted on one side of the upper surface of the support frame (1), and the telescopic end of the first telescopic member (7) is fixedly connected to the upper surface of the support sleeve (2).

3. The lifting gantry for processing precast concrete parts according to claim 2, characterized in that: A slide groove (8) is provided inside the support sliding sleeve (2), and the front and rear inner side walls of the slide groove (8) are in contact with the front and rear outer side walls of the support frame (1), and the upper and lower inner side walls of the slide groove (8) are in contact with the upper and lower outer side walls of the support frame (1).

4. The lifting gantry for processing precast concrete parts according to claim 1, characterized in that: An opening (9) is provided at the top of the support frame (4), and first rotating shafts (10) are provided on both sides of the opening (9). The front and rear side walls of the support frame (1) are provided with first rotating grooves (11) for use with the first rotating shaft (10). The support frame (4) is rotatably connected to the first rotating grooves (11) of the support frame (1) via the first rotating shaft (10).

5. The lifting gantry for processing precast concrete parts according to claim 4, characterized in that: The first drive assembly is provided with two groups, corresponding to the support frames (4) at both ends respectively, and each group of the first drive assembly comprises a drive motor (12), a first gear (13) and a second gear (14), wherein the drive motor (12) is mounted on the upper surface of the support frame (1), the first gear (13) is fixedly sleeved on the output end of the drive motor (12), and the second gear (14) is fixedly sleeved on the outer wall of one of the first rotating shafts (10), and the first gear (13) is meshedly connected with the second gear (14).

6. The lifting gantry for processing precast concrete parts according to claim 5, characterized in that: The inner wall of the support frame (4) is provided with a reinforcing rod (15).

7. The lifting gantry for processing precast concrete parts according to claim 1, characterized in that: The second drive assembly comprises a second telescopic member (16) and two gear sets, the two gear sets corresponding to the left and right grippers respectively, and each gear set comprises a third gear (17) and a fourth gear (18) meshing with each other.

8. The lifting gantry for processing precast concrete parts according to claim 7, characterized in that: A fixing rod (19) is fixedly connected between the two clamping jaws (6) on the front side and the two clamping jaws (6) on the rear side, and the fixed end and the telescopic end of the second telescopic member (16) are rotatably connected to the front and rear fixing rods (19) respectively.

9. The lifting gantry for processing precast concrete parts according to claim 8, characterized in that: The upper end of the clamping jaw (6) is rotatably connected to the mounting block (5) via a second rotating shaft (20), and the third gear (17) and the fourth gear (18) are respectively fixedly sleeved on the outer side walls of the two second rotating shafts (20).

10. The lifting gantry for processing precast concrete parts according to claim 9, characterized in that: A clamping block (21) is provided on the inner side of the lower portion of the clamping jaw (6).

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