Auxiliary tool for overhauling wheel of bridge crane and use method of auxiliary tool

Abstract

The invention provides an auxiliary tool for bridge crane wheel maintenance and a using method thereof.The auxiliary tool comprises a left side end beam hanging lug and a right side end beam hanging lug, the left side end beam hanging lug and the right side end beam hanging lug are clamped to the left edge and the right edge of an end beam of a bridge crane respectively and connected through a cross rod, and the hanging lugs are tightly attached to the end beam by adjusting the cross rod; meanwhile, the vertical edges of the left end beam hanging lug and the right end beam hanging lug are vertically connected with vertical rods respectively, hanging lugs at the bottom ends of the vertical rods are connected through a sliding rail, a movable pulley is arranged on the bottom face of the sliding rail, and the movable pulley is provided with a lifting mechanism used for lifting wheels. The vertical rods can reduce the relative distance between the sliding rails and the transverse rods, so that the sliding rails are tightly attached to the lower surfaces of the end beams, the stability of the sliding rails is further guaranteed, and safety risks caused by shaking during operation are prevented. The application of the auxiliary tool can effectively solve the problems of difficulties and potential safety hazards encountered when the wheels of the travelling crane are replaced, improve the operation efficiency, shorten the shutdown maintenance time and ensure that the production requirements are effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of crane maintenance, and in particular to an auxiliary tooling for overhauling wheels of a bridge crane and a use method thereof. Background Art

[0002] At present, when the bridge crane is replaced due to wheel wear, the electric hoist in the factory cannot be used for replacement during maintenance due to the constraints of the unit production process and the structure of the crane itself. For example, when replacing the wheels of the bridge crane trolley, most of them use hand chain hoists for replacement, but the hand chain hoist has no rooting position on the end beam side of the crane body. Each time the wheel is replaced, a new rooting point needs to be found, resulting in a long downtime for the crane maintenance and certain safety hazards. These difficulties have seriously affected the operating efficiency and made it impossible to effectively guarantee the production needs.

[0003] In view of the above problems, a new solution needs to be designed to improve the efficiency and safety of wheel replacement. Summary of the invention

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide an auxiliary tooling for bridge crane wheel maintenance, which is used to solve the problem of inconvenient wheel lifting in the prior art. This solution can use specially designed equipment or tools to smoothly replace the wheels during bridge crane maintenance without relying on factory electric hoists or hand hoists. This solution includes designing a special replacement device that can be fixed to the end beam of the crane body and provides a stable rooting position so that the wheel can be replaced safely and efficiently. The device adopts a suitable fixing mechanism and supporting structure to ensure the stability and reliability of the device.

[0005] In order to achieve the above-mentioned and other related purposes, the present invention provides an auxiliary tooling for overhauling wheels of a bridge crane, the auxiliary tooling comprising:

[0006] A left end beam hanging ear and a right end beam hanging ear, wherein the left end beam hanging ear and the right end beam hanging ear are in a right-angle shape and are arranged symmetrically on the left and right sides, and the inner angles of the left end beam hanging ear and the right end beam hanging ear are respectively clamped at the left and right edges of the end beam of the bridge crane;

[0007] The horizontal sides of the left end beam hanging ear and the right end beam hanging ear are connected by a horizontal rod, and the vertical sides of the left end beam hanging ear and the right end beam hanging ear are respectively vertically connected with vertical rods;

[0008] The bottom end of the vertical rod is connected with a lifting lug, and the lifting lugs on the left and right sides are connected by a slide rail. A movable pulley is arranged on the bottom surface of the slide rail. The movable pulley can move along the slide rail, and the movable pulley is provided with a lifting mechanism for lifting the wheel.

[0009] Preferably, the cross bar is a transverse retractable bar to adjust the distance between the left end beam hanging ear and the right end beam hanging ear, and is flexibly applicable to end beams of different sizes.

[0010] Preferably, the vertical rod is a vertical lifting rod to control the up and down movement of the slide rail.

[0011] Preferably, the slide rail is an inverted T-shaped rail or an I-shaped rail, and the pulleys of the movable pulley are located in grooves on both sides of the rail waist.

[0012] Preferably, the lifting mechanism is a hand winch.

[0013] Preferably, the maximum load-bearing capacity of the slide rail is 1.5 t.

[0014] A method for using the auxiliary tooling includes the following steps:

[0015] S1: Place the left end beam hanging ears and the right end beam hanging ears on the edge of the end beam, and then install the cross bar with an electric wrench. Use the cross bar to adjust the distance between the left end beam hanging ears and the right end beam hanging ears so that the hanging ears are close to the end beam;

[0016] S2: Install the vertical rod, rotate the vertical rod by an electric wrench, shorten the relative distance between the slide rail and the cross bar, and make the slide rail close to the lower surface of the end beam;

[0017] S3: Move the mobile pulley along the slide rail to the working area of ​​the wheel to be replaced, and complete the wheel lifting and replacement work through the lifting mechanism.

[0018] The present invention provides an auxiliary tooling for overhauling a bridge crane wheel and a method for using the auxiliary tooling. The auxiliary tooling comprises a left end beam hanging ear and a right end beam hanging ear, which are respectively clamped at the left and right edges of the end beam of the bridge crane and connected by a cross bar, and the hanging ear is made to be close to the end beam by adjusting the cross bar; at the same time, the vertical sides of the left end beam hanging ear and the right end beam hanging ear are respectively vertically connected with a vertical bar, and the hanging ears at the bottom of the vertical bar are connected by a slide rail, and a movable pulley is arranged on the bottom surface of the slide rail, and the movable pulley is provided with a lifting mechanism for lifting the wheel. The vertical bar can shorten the relative distance between the slide rail and the cross bar, so that the slide rail is close to the lower surface of the end beam, further ensuring its stability, and preventing shaking during operation to cause safety risks. Test results show that the tooling performs well in practical applications, improves work efficiency, and reduces time and labor costs. The connection adjustment method is reliable, and the slide rail and the movable pulley are designed to be stable. The reliability and safety of the method are effectively verified. Using traditional methods to replace a single wheel requires 6 workers and 5 hours, but using this tool can shorten the replacement time to only 3 hours for 4 workers.

[0019] The auxiliary tooling of the present invention can be fixed on the end beam of the crane body and provide a stable rooting position, so that the wheel can be replaced safely and efficiently. The device adopts a suitable fixing mechanism and supporting structure to ensure the stability and reliability of the device. The application of the auxiliary tooling can effectively solve the difficulties and safety hazards encountered when replacing the wheels of the crane, improve the operating efficiency, shorten the downtime for maintenance, and ensure that the production needs are effectively guaranteed. This will bring significant improvements and optimizations to the maintenance and repair work of the bridge crane in the factory area. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shown is a three-dimensional structural schematic diagram of the auxiliary tooling of the present invention.

[0021] Figure 2 Shown is a schematic diagram of the planar structure of the auxiliary tooling of the present invention.

[0022] Figure 3 Shown is a schematic diagram of the force analysis of the slide rail.

[0023] Figure 4 Shown is a schematic diagram of the force analysis of the 3D model of the slide rail.

[0024] Component number description

[0025] 1- left end beam hanging ear, 2- horizontal bar, 3- left vertical bar, 4- right end beam hanging ear, 5- left lifting ear, 6- right vertical bar, 7- slide rail, 8- right lifting ear, 9- moving pulley. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0027] For example, when describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional view showing the device structure will not be partially enlarged according to the general scale, and the schematic view is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional space dimensions of length, width and depth should be included.

[0028] It should be noted that the illustrations provided in this embodiment are only used to illustrate the basic concept of the present invention in a schematic manner, and therefore the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0029] like Figure 1 , Figure 2 As shown, the present invention provides an auxiliary tooling for overhauling wheels of a bridge crane, the auxiliary tooling comprising:

[0030] The left end beam hanging ear 1 and the right end beam hanging ear 4 are in a right angle shape and are arranged symmetrically on both sides. The inner corners of the left end beam hanging ear 1 and the right end beam hanging ear 4 are respectively clamped at the left and right edges of the end beam of the bridge crane;

[0031] The horizontal sides of the left end beam hanging ear 1 and the right end beam hanging ear 4 are connected by a horizontal rod 2, and the vertical sides of the left end beam hanging ear 1 and the right end beam hanging ear 4 are respectively vertically connected with vertical rods;

[0032] The bottom end of the vertical rod is connected with a lifting lug, and the lifting lugs on the left and right sides are connected by a slide rail 7. A movable pulley 9 is provided on the bottom surface of the slide rail 7. The movable pulley 9 can move along the slide rail 7. The movable pulley 9 is provided with a lifting mechanism for lifting the wheels.

[0033] Specifically, the auxiliary tooling includes a left vertical rod 3, a right vertical rod 6, a left lifting ear 5 and a right lifting ear 8. The auxiliary tooling is in the shape of a frame as a whole, which is mounted on the end beam of the bridge crane, thereby providing a rooting point (point of force) for the lifting mechanism below, and then the lifting wheel is tied and lifted through the lifting mechanism to complete the wheel repair or replacement. The plane where the auxiliary tooling is located is perpendicular to the length direction of the end beam. The inner corners of the left end beam hanging ear 1 and the right end beam hanging ear 4 are clamped on the left and right edges of the end beam and are in full contact to ensure its stability and prevent left and right shaking. The slide rail 7 below can provide a certain degree of freedom, so that the lifting mechanism can move in the left and right directions to adapt to wheels in different positions.

[0034] Furthermore, the cross bar 2 is a transverse contraction bar to adjust the spacing between the left end beam hanging ear 1 and the right end beam hanging ear 4, and is flexibly applicable to end beams of different sizes. The cross bar 2 is located above the end beam, and the cross bar 2 is connected to the left end beam hanging ear 1 and the right end beam hanging ear 4 through threads to facilitate disassembly and assembly. During installation, the left end beam hanging ear 1 and the right end beam hanging ear 4 are first placed at the edge of the end beam, and then connected through the cross bar 2 so that the hanging ears are close to the end beam.

[0035] Furthermore, the vertical rod is a vertical lifting rod to control the up and down movement of the slide rail 7. The vertical rod is connected to the left end beam hanging ear 1 and the right end beam hanging ear 4 by threads for easy disassembly and assembly, and the vertical rod is also connected to the lifting ear by threads. The vertical rod can shorten the relative distance between the slide rail 7 and the cross bar, so that the slide rail 7 is close to the lower surface of the end beam, so that the entire auxiliary tooling can firmly clamp the end beam, further ensuring its stability and preventing shaking during operation to cause safety risks.

[0036] Furthermore, the lifting weight of the entire bridge crane is 8t-100t. Figure 3 , Figure 4 As shown, through force analysis and simulation of the slide rail 7, it can be determined that the maximum lifting weight of the lifting mechanism is 1.5t. When lifting a weight of 1.5t, the maximum deformation of the slide rail 7 is 1.033mm, which meets the design requirements.

[0037] Further, the slide rail 7 is an inverted T-shaped rail or an I-shaped rail, and the pulleys of the mobile pulley 9 are located in the grooves on both sides of the rail waist. The pulleys are arranged in the grooves on both sides to prevent them from falling out, and the left and right movement of the mobile pulley 9 can be manually controlled or electrically controlled.

[0038] Furthermore, the lifting mechanism is a hand chain hoist, and may also be other forms such as an electric hook.

[0039] The present invention also provides a method for using the auxiliary tooling, comprising the following steps:

[0040] S1: Place the left end beam hanging ear 1 and the right end beam hanging ear 4 at the edge of the end beam, then install the cross bar with an electric wrench, and adjust the distance between the left end beam hanging ear 1 and the right end beam hanging ear 4 through the cross bar so that the hanging ears are close to the end beam;

[0041] S2: Install the vertical rod, rotate the vertical rod by using an electric wrench, shorten the relative distance between the slide rail 7 and the cross bar, and make the slide rail 7 close to the lower surface of the end beam; the use of an electric wrench here facilitates quick operation on site and improves efficiency.

[0042] S3: Move the movable pulley 9 along the slide rail 7 to the working area of ​​the wheel to be replaced, and complete the wheel lifting and replacement work through the lifting mechanism.

[0043] In summary, the present invention provides an auxiliary tooling for wheel maintenance of a bridge crane and a method for using the auxiliary tooling, the auxiliary tooling comprises a left end beam hanging ear and a right end beam hanging ear, the left end beam hanging ear and the right end beam hanging ear are respectively clamped at the left and right edges of the end beam of the bridge crane and connected by a cross bar, and the hanging ear is made to be close to the end beam by adjusting the cross bar; at the same time, the vertical sides of the left end beam hanging ear and the right end beam hanging ear are respectively vertically connected with a vertical rod, and the hanging ears at the bottom of the vertical rod are connected by a slide rail, and a mobile pulley is provided on the bottom surface of the slide rail, and the mobile pulley is provided with a lifting mechanism for lifting the wheel. The vertical rod can shorten the relative distance between the slide rail and the cross bar, so that the slide rail is close to the lower surface of the end beam, further ensuring its stability, and preventing shaking during operation to cause safety risks. The test results show that the tooling performs well in practical applications, improves work efficiency, and reduces time and labor costs. The connection adjustment method is reliable, and the slide rail and the mobile pulley are designed to be stable. The reliability and safety of the method are effectively verified. Using traditional methods to replace a single wheel requires 6 workers and 5 hours, but using this tool can shorten the replacement time to only 3 hours for 4 workers.

[0044] The auxiliary tooling of the present invention can be fixed on the end beam of the crane body and provide a stable rooting position, so that the wheel can be replaced safely and efficiently. The device adopts a suitable fixing mechanism and supporting structure to ensure the stability and reliability of the device. The application of the auxiliary tooling can effectively solve the difficulties and safety hazards encountered when replacing the wheels of the crane, improve the operating efficiency, shorten the downtime for maintenance, and ensure that the production needs are effectively guaranteed. This will bring significant improvements and optimizations to the maintenance and repair work of the bridge crane in the factory area.

[0045] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An auxiliary tool for overhauling bridge crane wheels, characterized in that: The auxiliary tooling includes: A left end beam hanging ear and a right end beam hanging ear, wherein the left end beam hanging ear and the right end beam hanging ear are in a right-angle shape and are arranged symmetrically on the left and right sides, and the inner angles of the left end beam hanging ear and the right end beam hanging ear are respectively clamped at the left and right edges of the end beam of the bridge crane; The horizontal sides of the left end beam hanging ear and the right end beam hanging ear are connected by a horizontal rod, and the vertical sides of the left end beam hanging ear and the right end beam hanging ear are respectively vertically connected with vertical rods; The bottom end of the vertical rod is connected with a lifting lug, and the lifting lugs on the left and right sides are connected by a slide rail. A movable pulley is arranged on the bottom surface of the slide rail. The movable pulley can move along the slide rail, and the movable pulley is provided with a lifting mechanism for lifting the wheel.

2. The auxiliary tooling for overhauling bridge crane wheels according to claim 1 is characterized in that: The cross bar is a transverse contraction bar, which is used to adjust the distance between the left end beam hanging ear and the right end beam hanging ear, and is flexibly applicable to end beams of different sizes.

3. The auxiliary tooling for overhauling bridge crane wheels according to claim 1 is characterized in that: The vertical rod is a vertical lifting rod to control the up and down movement of the slide rail.

4. The auxiliary tooling for overhauling bridge crane wheels according to claim 1 is characterized in that: The slide rail is an inverted T-shaped rail or an I-shaped rail, and the pulleys of the movable pulley are located in grooves on both sides of the rail waist.

5. The auxiliary tooling for overhauling bridge crane wheels according to claim 1 is characterized in that: The lifting mechanism is a hand chain hoist.

6. The auxiliary tooling for overhauling bridge crane wheels according to claim 1 is characterized by: The maximum load-bearing capacity of the slide rail is 1.5t.

7. A method for using the auxiliary tooling as claimed in claim 1, characterized in that: The steps include: S1: Place the left end beam hanging ears and the right end beam hanging ears on the edge of the end beam, and then install the cross bar with an electric wrench. Use the cross bar to adjust the distance between the left end beam hanging ears and the right end beam hanging ears so that the hanging ears are close to the end beam; S2: Install the vertical rod, rotate the vertical rod by an electric wrench, shorten the relative distance between the slide rail and the cross bar, and make the slide rail close to the lower surface of the end beam; S3: Move the mobile pulley along the slide rail to the working area of ​​the wheel to be replaced, and complete the wheel lifting and replacement work through the lifting mechanism.

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