High-precision assembling device for workshop crane beam

Abstract

The utility model discloses a workshop crane beam high-precision assembling device which comprises a top beam, the bottom of the top beam is fixedly connected with a limiting plate, a sliding block is slidably connected into the limiting plate, and a side plate is fixedly connected with a limiting structure. The side end of the top beam is rotationally connected with a swing rod. The utility model has the beneficial effects that the top beam is adopted to realize the hoisting in the assembling process of the crane beam, and the crane beam is stably assembled by limiting and fixing the crane beam, so that the high precision in the assembling process is ensured, the influence on the service life of the crane beam caused by the assembling error is effectively reduced, and the structural strength of the crane beam in a workshop is ensured; moving can be achieved when the top beam is assembled, assembling at the proper position can be conducted according to the size requirement, and the stability of the crane beam in the moving process is ensured. The supporting wheels are driven by the sliding blocks capable of horizontally moving to achieve horizontal movement, the clamping force can be adjusted for the steel crane beam, separation of the crane beam is achieved after machining is completed, efficient machining is guaranteed, and meanwhile the assembly precision is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of workshop crane beam processing, specifically a high-precision assembly device for workshop crane beams. Background Technology

[0002] Workshop overhead crane beams are key load-bearing structures in industrial plants used to support the operation of bridge cranes (traffic rigs). They are typically arranged longitudinally along the plant and bear the loads of lifting equipment, suspended loads, and dynamic loads. Reinforced concrete overhead crane beams are suitable for small to medium tonnage cranes (usually ≤10 tons), with advantages such as low cost and good fire resistance, but disadvantages such as heavy weight and limited span. Steel overhead crane beams are made of multi-purpose steel sections (H-beams) or welded composite beams, suitable for large tonnage (≥20 tons) or large spans, with advantages such as high strength, light weight, and ease of installation and modification. Composite beams (steel-concrete) combine the advantages of both, improving rigidity and seismic performance.

[0003] Currently, most crane beams on the market are made of steel. These beams are assembled in the factory and then transported directly to the workshop for installation. However, during the welding process between the crane beam and the outriggers, accurate positioning cannot be guaranteed, making subsequent welding or high-strength bolt connections difficult to ensure accurate assembly, reducing performance and increasing potential hazards in workshop production. Therefore, a high-precision assembly device for workshop crane beams is proposed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a high-precision assembly device for workshop crane beams in order to solve the above-mentioned problems.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a high-precision assembly device for a workshop overhead crane beam, comprising a top beam, a limiting plate fixedly connected to the bottom of the top beam, a slider slidably connected inside the limiting plate, and the slider being fitted to the bottom surface of the top beam, a connecting plate fixedly connected to the bottom of the slider, a support wheel rotatably connected to the bottom end of the connecting plate, and the support wheel being fitted to the H-shaped overhead crane beam, and two side plates fixedly connected to the bottom end of the connecting plate, each side plate being fixedly connected to the limiting structure;

[0006] A swing arm is rotatably connected to the side end of the top beam, and a fixed plate is fixedly connected to the bottom end of the swing arm. The side wall of the fixed plate is rotatably connected to the anti-slip wheel, the anti-slip wheel is fitted to the side wall of the outrigger, and the outrigger is fitted to the bottom surface of the traveling beam.

[0007] Preferably, a first motor is fixedly installed on the top of the top beam, and a lead screw is rotatably connected to the bottom of the top beam. The middle part of the lead screw and the output end of the first motor are both fixedly connected to pulleys. The pulleys are connected by belt drive, and openings for belt drive are provided at both ends of the top beam.

[0008] Preferably, the two ends of the lead screw have opposite helical directions, both ends of the lead screw are threadedly connected to the sliders, and the two sliders are symmetrically distributed on both sides of the traveling beam.

[0009] Preferably, the connecting plate is located between the limiting plates of the L-shaped structure, and the bottom sides of the connecting plate are provided with horizontally distributed side plates.

[0010] Preferably, the limiting structure consists of a sleeve and a square rod. The square rod is movably connected to the inside of the sleeve, and one end of the square rod is connected to the inside of the sleeve via a spring. The other end of the square rod is fixedly connected to a bearing, and the bearing is rotatably connected to two symmetrically distributed limiting wheels. The limiting wheels are in close contact with the side wall of the traveling beam.

[0011] Preferably, an electric push rod is fixedly installed on the top of the top beam, the telescopic end of the electric push rod passes through the top beam and is rotatably connected to the pressure roller, and the pressure roller is in contact with the top surface of the traveling beam.

[0012] Preferably, the top of the top beam is rotatably connected to inclined hydraulic cylinders, the telescopic end of the hydraulic cylinder is rotatably connected to the top of the swing arm, the swing arm is located in the middle of both sides of the top beam, and the middle of the top beam is connected to the top beam.

[0013] Preferably, the swing arm has a bent structure, and the fixing plates at the bottom of the swing arm are symmetrically arranged on both sides of the support leg, and each fixing plate is provided with two anti-slip wheels.

[0014] Preferably, the side wall of the fixed plate is fixedly connected to the second motor, the output end of the second motor and the two anti-slip wheels are fixedly connected to the transmission wheel, and the transmission wheels are connected to each other by a transmission belt.

[0015] The beneficial effects of this utility model are:

[0016] I. This utility model uses a top beam to realize the hoisting during the assembly of the crane beam, and achieves stable assembly by limiting and fixing the crane beam, ensuring high precision in the assembly process, effectively reducing assembly errors that affect its service life, and ensuring the structural strength of the crane beam in the workshop.

[0017] Second, this utility model utilizes the ability to move during the assembly of the top beam and to accurately correspond with the clamping legs, enabling assembly at appropriate positions according to size requirements, and ensuring the stability of the crane beam during movement, avoiding deviation that would affect assembly accuracy.

[0018] Third, this utility model utilizes a movable slider to drive the support wheel to achieve translation, which can adjust the clamping force for steel crane beams and separate the crane beams after processing. At the same time, it solves the problem that the crane beam cannot move smoothly when there are stiffening ribs, ensuring efficient processing while ensuring assembly accuracy. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a front view structural diagram of the present invention;

[0021] Figure 2 This is a side view of the structure of this utility model;

[0022] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0023] In the diagram: 1. Top beam; 2. Limiting plate; 3. Slider; 4. First motor; 5. Lead screw; 6. Connecting plate; 7. Support wheel; 8. Side plate; 9. Limiting structure; 901. Sleeve; 902. Square rod; 903. Bearing; 904. Limiting wheel; 905. Spring; 10. Crane beam; 11. Electric push rod; 12. Pressure roller; 13. Hydraulic cylinder; 14. Swing rod; 15. Fixing plate; 16. Anti-slip wheel; 17. Second motor; 18. Transmission wheel; 19. Transmission belt; 20. Outrigger. Detailed Implementation

[0024] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Please see Figure 1-3 As shown, a high-precision assembly device for a workshop overhead crane beam includes a top beam 1. A limiting plate 2 is fixedly connected to the bottom of the top beam 1. A slider 3 is slidably connected inside the limiting plate 2 and is fitted to the bottom surface of the top beam 1. A connecting plate 6 is fixedly connected to the bottom of the slider 3. A support wheel 7 is rotatably connected to the bottom end of the connecting plate 6 and is fitted to the overhead crane beam 10 with an H-shaped structure. Two side plates 8 are fixedly connected to the bottom end of the connecting plate 6, and each side plate 8 is fixedly connected to a limiting structure 9.

[0028] A swing arm 14 is rotatably connected to the side end of the top beam 1, and a fixing plate 15 is fixedly connected to the bottom end of the swing arm 14. The side wall of the fixing plate 15 is rotatably connected to the anti-slip wheel 16, and the anti-slip wheel 16 is fitted to the side wall of the support leg 20, and the support leg 20 is fitted to the bottom surface of the traveling beam 10.

[0029] A first motor 4 is fixedly installed on the top of the top beam 1, and a lead screw 5 is rotatably connected to the bottom of the top beam 1. The middle part of the lead screw 5 and the output end of the first motor 4 are both fixedly connected to pulleys. The pulleys are connected by belt drive, and both ends of the top beam 1 are provided with openings for belt drive. The two ends of the lead screw 5 have opposite spiral directions, and both ends of the lead screw 5 are threadedly connected to sliders 3. The two sliders 3 are symmetrically distributed on both sides of the traveling beam 10.

[0030] In the above, the first motor 4 drives the lead screw 5 to rotate at the bottom of the top beam 1 through the transmission rod of the belt and pulley. The lead screw 5 drives the sliders 3 on both sides to move in the opposite direction, thereby driving the connecting plate 6 connected to it to achieve translation.

[0031] The connecting plate 6 is located between the limiting plates 2 of the L-shaped structure, and the bottom sides of the connecting plate 6 are provided with horizontally distributed side plates 8; the limiting structure 9 is composed of a sleeve 901 and a square rod 902. The square rod 902 is movably connected to the inside of the sleeve 901, and one end of the square rod 902 is connected to the inside of the sleeve 901 through a spring 905. The other end of the square rod 902 is fixedly connected to a bearing 903. The inside of the bearing 903 is rotatably connected to two symmetrically distributed limiting wheels 904, and the limiting wheels 904 are in close contact with the side wall of the traveling beam 10.

[0032] Furthermore, top beams 1 are arranged at both ends of the crane beam 10 to be assembled. The front support wheels 7 are separated from the crane beam 10. When the first motor 4 is started, it drives the support wheels 7 to move into the interior of the crane beam 10. At this time, the limiting wheel 904 contacts the inner wall of the crane beam 10 and forces the spring 905 to compress. During the compression of the spring 905, the square rod 902 moves inside the sleeve 901. The support wheels 7 stop when they move into the interior of both ends of the crane beam 10. At this time, the support wheels 7 support the top beam 1, and the limiting wheel 904 limits it to ensure that the crane beam 10 will not deviate during the translation process.

[0033] An electric push rod 11 is fixedly installed on the top of the top beam 1. The telescopic end of the electric push rod 11 passes through the top beam 1 and is rotatably connected to the pressure roller 12. The pressure roller 12 is in contact with the top surface of the traveling beam 10. An inclined hydraulic cylinder 13 is rotatably connected to the top of the top beam 1. The telescopic end of the hydraulic cylinder 13 is rotatably connected to the top of the swing rod 14. The swing rod 14 is located in the middle of both sides of the top beam 1, and the middle of the top beam 1 is connected to the top beam 1. The swing rod 14 has a bent structure. The fixing plates 15 at the bottom of the swing rod 14 are symmetrically arranged on both sides of the support leg 20, and each fixing plate 15 is provided with two anti-slip wheels 16. The side wall of the fixing plate 15 is fixedly connected to the second motor 17. The output end of the second motor 17 and the two anti-slip wheels 16 are fixedly connected to the transmission wheel 18, and the transmission wheels 18 are connected to each other through the transmission belt 19.

[0034] As described above, after the crane beam 10 is installed, the electric push rod 11 pushes the pressure roller 12 to press the top of the crane beam 10, thereby achieving stable positioning of the crane beam 10. Then, the external drive device pushes the crane beam 10 to move. The crane beam 10 is supported by the support roller 7, limited by the limiting roller 904, and pressed and fixed by the pressure roller 12, achieving stable translation. When it moves to the designated position, it stops. The hydraulic cylinder 13 works and drives the swing rod 14 to rotate. The swing rod 14 contacts the anti-slip wheel 16 on the fixed plate 15 to contact the support leg 20, thereby tightening the support leg 20. Then, the second motor 17 is started, and the anti-slip wheel 16 is driven to rotate by the cooperation of the transmission belt 19 and the transmission wheel 18. The anti-slip wheel 16 drives the support leg 20 to move upward and make its top contact with the crane beam 10. The spacing of the support leg 20 can be adjusted according to the assembly position. After contact is completed, the contact position is welded and assembled by welding equipment to improve the high precision of the crane beam 10 assembly in the workshop.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-precision assembly device for workshop overhead crane beams, characterized in that: Includes a top beam (1), the bottom of which is fixedly connected to a limiting plate (2), a slider (3) is slidably connected inside the limiting plate (2), and the slider (3) is fitted to the bottom surface of the top beam (1). The bottom of the slider (3) is fixedly connected to a connecting plate (6), and the bottom end of the connecting plate (6) is rotatably connected to a support wheel (7), and the support wheel (7) is fitted to the H-shaped crane beam (10). The bottom end of the connecting plate (6) is fixedly connected to two side plates (8), and each side plate (8) is fixedly connected to a limiting structure (9). The top beam (1) is rotatably connected to a swing rod (14) at one end. The bottom end of the swing rod (14) is fixedly connected to a fixing plate (15). The side wall of the fixing plate (15) is rotatably connected to an anti-slip wheel (16). The anti-slip wheel (16) is fitted to the side wall of the support leg (20), and the support leg (20) is fitted to the bottom surface of the traveling beam (10).

2. The high-precision assembly device for workshop overhead crane beams according to claim 1, characterized in that: The top beam (1) is fixedly installed with a first motor (4), and the bottom of the top beam (1) is rotatably connected with a lead screw (5). The middle part of the lead screw (5) and the output end of the first motor (4) are fixedly connected to pulleys. The pulleys are connected by belt drive, and both ends of the top beam (1) are provided with openings for belt drive.

3. The high-precision assembly device for workshop overhead crane beams according to claim 2, characterized in that: The two ends of the lead screw (5) have opposite spiral directions. Both ends of the lead screw (5) are threadedly connected to the slider (3), and the two sliders (3) are symmetrically distributed on both sides of the traveling beam (10).

4. The high-precision assembly device for workshop overhead crane beams according to claim 1, characterized in that: The connecting plate (6) is located between the limiting plates (2) of the L-shaped structure, and the bottom sides of the connecting plate (6) are provided with horizontally distributed side plates (8).

5. The high-precision assembly device for workshop overhead crane beams according to claim 1, characterized in that: The limiting structure (9) consists of a sleeve (901) and a square rod (902). The square rod (902) is movably connected to the inside of the sleeve (901), and one end of the square rod (902) is connected to the inside of the sleeve (901) through a spring (905). The other end of the square rod (902) is fixedly connected to a bearing (903). The bearing (903) is rotatably connected to two symmetrically distributed limiting wheels (904), and the limiting wheels (904) are in close contact with the side wall of the traveling beam (10).

6. The high-precision assembly device for workshop overhead crane beams according to claim 1, characterized in that: An electric push rod (11) is fixedly installed on the top of the top beam (1). The telescopic end of the electric push rod (11) passes through the top beam (1) and is rotatably connected to the pressure roller (12). The pressure roller (12) is in contact with the top surface of the traveling beam (10).

7. The high-precision assembly device for workshop overhead crane beams according to claim 1, characterized in that: The top of the top beam (1) is rotatably connected to an inclined hydraulic cylinder (13), the telescopic end of the hydraulic cylinder (13) is rotatably connected to the top of the swing rod (14), the swing rod (14) is located in the middle of both sides of the top beam (1), and the middle of the top beam (1) is connected to the top beam (1).

8. The high-precision assembly device for workshop overhead crane beams according to claim 7, characterized in that: The swing arm (14) has a bent structure. The fixing plate (15) at the bottom of the swing arm (14) is symmetrically arranged on both sides of the support leg (20), and each fixing plate (15) is provided with two anti-slip wheels (16).

9. A high-precision assembly device for workshop overhead crane beams according to claim 8, characterized in that: The side wall of the fixed plate (15) is fixedly connected to the second motor (17). The output end of the second motor (17) and the two anti-slip wheels (16) are fixedly connected to the transmission wheel (18), and the transmission wheels (18) are connected by transmission belt (19).

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