A device and method for replacing a set of traveling bogies

Abstract

The present invention relates to the technical field of overhead traveling crane mechanical maintenance, and specifically discloses an overhead traveling crane trolley group replacement device and a replacement method, which include a sliding pipe, fixed buckles and sliding supports. The fixed buckles are respectively installed on two adjacent vertical struts of the safety railing. A sliding pipe is installed between the fixed buckles. One end of the sliding support slides on the sliding pipe, and the other end of the sliding support is connected to the wheel set, and is used for the removed old wheel set or the new wheel set to be installed driven by the sliding support to rotate and move through the sliding pipe; according to the on-site needs, with the help of the safety railing, one end of the sliding support is pre-sleeved on the sliding pipe, and then the sliding pipe is fixed on the vertical strut of the safety railing. The outer connecting sleeve is welded on the surface of the old wheel set of the overhead traveling crane. The wheel set is gently moved out of the overhead traveling crane girder through the track, and the new wheel set is installed in the reverse order to complete the replacement of the wheel set; the device has a simple structure, convenient material taking, convenient method control, and can adjust and adapt to safety guardrails in different areas during use, and is safe and effective.

Description

Technical Field

[0001] The present invention relates to the technical field of overhead traveling crane mechanical maintenance, and particularly relates to a device and method for replacing an overhead traveling crane trolley group. Background Art

[0002] In metallurgical enterprises, overhead traveling cranes and other lifting equipment are used for hoisting and transportation, which are essential equipment in the production process. Taking a 225-ton overhead traveling crane as an example, the overhead traveling crane track is at a height of more than 20 meters above the ground. The overhead traveling crane trolley group (wheel group) contains two wheels. After reaching the service life, it needs to be replaced online. First, the old trolley group is moved out of the 225-ton overhead traveling crane girder and removed by using a crane or other equipment. The traditional method is to replace the trolley group by using the overhead traveling crane wheel group auxiliary replacement device disclosed in Patent Application No. 201610608267.8: As Figures 1-3 shown, by using a guide wheel device, its guide group is clamped on the safety guardrail, and the side rod sleeve is welded on the surface of the wheel housing of the old trolley group of the 225-ton overhead traveling crane. The guide wheel device is manually moved to gently move the trolley group to be removed out of the overhead traveling crane girder along the track, and then it is lifted to the ground by a crane. Then, a new trolley group is lifted to the outside of the overhead traveling crane girder, and the trolley group is moved into the original position by using the guide wheel device to complete the replacement task.

[0003] The current guide wheel device has the following disadvantages: (1) The device is complex, the guide wheels and other components are costly, and it is not easy to adjust. (2) When the diameters of the safety guardrails in different areas where each 225-ton overhead traveling crane is located are not unified, it cannot be used universally and has limitations. (3) During the use of the device, a large number of manual workers are required. Generally, no less than 22 people, including ground personnel and personnel at the overhead traveling crane track, are involved, resulting in low efficiency and being unfavorable for the improvement of the enterprise's labor productivity. Therefore, it is necessary to design a device and method for replacing an overhead traveling crane trolley group to effectively solve the above problems existing in the traditional method of replacing an overhead traveling crane trolley group. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a device and method for replacing an overhead traveling crane trolley group.

[0005] The technical solution adopted by the present invention to solve its technical problems is: An overhead traveling crane trolley group replacement device includes a sliding pipe, a fixed buckle, and a sliding support. The fixed buckles are respectively installed on two adjacent vertical supports of the safety guardrail. The sliding pipe is installed between the fixed buckles. One end of the sliding support slides on the sliding pipe, and the other end of the sliding support is connected to the wheel group, and is used for the removed old wheel group or the new wheel group to be installed driven by the sliding support to rotate and move through the sliding pipe.

[0006] Specifically, the fixed buckle is provided with a left clamping ring, a right clamping ring and a pipe ring. The left clamping ring and the right clamping ring are connected and installed on the safety railing through four fixing bolts. The diameter of the circle formed by the left clamping ring and the right clamping ring is larger than the diameter of the vertical strut of the safety railing. The pipe ring is welded on the left clamping ring. The diameter of the pipe ring is equal to the diameter of the sliding pipe, and the pipe ring is sleeved on the sliding pipe.

[0007] Specifically, the sliding support is provided with a sliding ring, a connecting rod and an outer connecting sleeve. The sliding ring and the outer connecting sleeve are connected through the connecting rod. The outer connecting sleeve is welded on the wheel set. The inner diameter of the sliding ring is larger than the diameter of the sliding pipe, and the sliding ring is sleeved on the sliding pipe to slide.

[0008] Specifically, the connecting rod is an elastic rod, and the elastic rod is a high-strength spring with elasticity.

[0009] A replacement method for a traveling trolley group replacement device includes the following steps:

[0010] 1) First, drive the traveling crane to the maintenance area and stop it stably. First, put one end of the sliding ring of the sliding support on the sliding pipe, and then fix the sliding pipe on the vertical strut of the safety railing by the fixed buckle respectively;

[0011] 2) Remove the bolts of the old wheel set, and weld the outer connecting sleeve of the sliding support on the surface of the old wheel set of the traveling crane;

[0012] 3) Move the old wheel set, and at the same time, the sliding ring of the sliding support slides on the sliding pipe, and the old wheel set is gently moved out of the traveling crane girder through the track;

[0013] 4) Then, use the crane equipment to lift the old wheel set, disconnect the connection of the outer connecting sleeve of the sliding support, lift the old wheel set to the ground, and then lift the new wheel set to outside the traveling crane girder;

[0014] 5) Weld the outer connecting sleeve of the sliding support on the surface of the new wheel set of the traveling crane;

[0015] 6) Move the new wheel set, and at the same time, the sliding ring of the sliding support slides on the sliding pipe, and the new wheel set is gently moved into the original position from outside the traveling crane girder through the track;

[0016] 7) Tighten the bolts of the new wheel set, remove the sliding pipe, the fixed buckle and the sliding support, and complete the work task.

[0017] The present invention has the following beneficial effects:

[0018] The traveling trolley group replacement device and the replacement method designed by the present invention, according to the on-site needs, with the help of the safety railing, first put one end of the sliding support on the sliding pipe, then fix the sliding pipe on the vertical strut of the safety railing, weld the outer connecting sleeve on the surface of the old wheel set of the traveling crane, move the wheel set and gently move it out of the traveling crane girder through the track, and install the new wheel set in the reverse order, complete the replacement of the wheel set, which takes 3.5 hours and requires less than 16 workers;

[0019] The device has a simple structure, convenient material acquisition, convenient method control, and can adjust and adapt to safety guardrails in different areas during use, which is safe and effective. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the position of the traveling wheel set in the prior art.

[0021] Figure 2 It is a schematic diagram of the auxiliary replacement device for the traveling wheel set in the prior art.

[0022] Figure 3 It is a working schematic diagram of the auxiliary replacement device for the traveling wheel set in the prior art.

[0023] Figure 4 It is a schematic diagram of the traveling wheel set replacement device of the present invention.

[0024] Figure 5 It is a schematic diagram of the fixed buckle of the traveling wheel set replacement device of the present invention.

[0025] Figure 6 It is a schematic diagram of the sliding support of the traveling wheel set replacement device of the present invention.

[0026] Figure 7 It is a schematic diagram of the structure where the sliding support of the traveling wheel set replacement device of the present invention is an elastic rod.

[0027] Figure 8 It is a schematic diagram of the installation principle of the traveling wheel set replacement device of the present invention.

[0028] In the figure: 1 - guiding group; 2 - wheel set; 3 - safety fence; 4 - track; 5 - sliding pipe;

[0029] 6 - fixed buckle, 61 - fixed bolt, 62 - left snap ring, 63 - right snap ring, 64 - pipe ring;

[0030] 7 - sliding support, 71 - sliding ring, 72 - connecting rod, 73 - outer connecting sleeve, 74 - elastic rod. Detailed Embodiment

[0031] The following will further clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] As Figures 4-8As shown in the figure, a replacement device and method for a traveling trolley group include a sliding pipe 5, fixed buckles 6, and a sliding support 7, where: The sliding pipe 5 is fixed on the safety railing 3 by two fixed buckles 6 respectively; One end of the sliding support 7 slides on the sliding pipe 5, and the other end of the sliding support 7 is connected to the wheel set 2; The left clamping ring 62 and the right clamping ring 63 of the fixed buckle 6 are connected by four fixing bolts 61; The diameter of the circle formed by the left clamping ring 62 and the right clamping ring 63 is greater than the diameter of the vertical strut of the safety railing 3; The pipe ring 64 is welded on the left clamping ring 62; The diameter of the pipe ring 64 is equal to the diameter of the sliding pipe 5, and the pipe ring 64 is sleeved on the sliding pipe 5; The sliding ring 71 of the sliding support 7 is connected to the outer connecting sleeve 73 by a connecting rod 72, and the outer connecting sleeve 73 is welded on the wheel set 2; The inner diameter of the sliding ring 71 is greater than the diameter of the sliding pipe 5, and the sliding ring 71 is sleeved on the sliding pipe 5 and slides on it.

[0033] The sliding ring 71 and the outer connecting sleeve 73 are connected by an elastic rod 74, and the elastic rod 74 is a high-strength spring with elasticity; The diameter of the sliding pipe 5 can be adjusted at any time according to the on-site situation.

[0034] The method for replacing the wheel set is as follows:

[0035] (1) Pre-position the traveling crane to the maintenance area and stop it steadily. First, put one end of the sliding ring 71 of the sliding support 7 on the sliding pipe 5, and then fix the sliding pipe 5 on the vertical struts of the safety railing 3 by the fixed buckles 6 respectively;

[0036] (2) Remove the bolts of the old wheel set and weld the outer connecting sleeve 73 of the sliding support 7 on the surface of the old wheel set of the traveling crane;

[0037] (3) Move the old wheel set, and at the same time, the sliding ring 71 of the sliding support 7 slides on the sliding pipe 5, and the old wheel set is gently moved out of the traveling crane girder through the track 4;

[0038] (4) Then, use the crane equipment to lift the old wheel set, disconnect the connection of the outer connecting sleeve 73 of the sliding support 7, lift the old wheel set to the ground, and then lift the new wheel set to outside the traveling crane girder;

[0039] (5) Weld the outer connecting sleeve 73 of the sliding support 7 on the surface of the new wheel set of the traveling crane;

[0040] (6) Move the new wheel set, and at the same time, the sliding ring 71 of the sliding support 7 slides on the sliding pipe 5, and the new wheel set is gently moved into the original position from outside the traveling crane girder through the track;

[0041] (7) Tighten the bolts of the new wheel set, remove the sliding pipe 5, fixed buckles 6, and sliding support 7 to complete the work task.

[0042] Through the replacement device and method of the present invention, according to the on-site requirements, with the help of the safety fence 3, one end of the sliding support 7 is sleeved on the sliding pipe 5 in advance, and then the sliding pipe 5 is fixed on the vertical support of the safety fence 3. The outer connecting sleeve 73 is welded on the surface of the old wheel set of the crane. The moving wheel set is gently moved out of the crane girder through the track 4. The new wheel set is installed in the reverse order to complete the replacement of the wheel set. It takes 3.5 hours and requires no more than 16 workers.

[0043] The present invention is not limited to the above embodiments. Anyone should know that structural changes made under the inspiration of the present invention, as long as they have the same or similar technical solutions as the present invention, all fall within the protection scope of the present invention.

[0044] The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. A replacement device for a traveling trolley group, characterized in that It includes a sliding pipe, fixed buckles and a sliding support. The fixed buckles are respectively installed on two adjacent vertical supports of the safety railing. A sliding pipe is installed between the fixed buckles. One end of the sliding support slides on the sliding pipe, and the other end of the sliding support is connected to the wheel set, and is used for the removed old wheel set or the new wheel set to be installed driven by the sliding support to rotate and move through the sliding pipe.

2. The replacement device for the traveling trolley group according to claim 1, characterized in that The fixed buckle is provided with a left clamping ring, a right clamping ring and a pipe ring. The left clamping ring and the right clamping ring are connected and installed on the safety railing by four fixing bolts. The diameter of the circle formed by the left clamping ring and the right clamping ring is larger than the diameter of the vertical support of the safety railing. The pipe ring is welded on the left clamping ring, and the diameter of the pipe ring is equal to the diameter of the sliding pipe. The pipe ring is sleeved on the sliding pipe.

3. The replacement device for the traveling trolley group according to claim 1, characterized in that The sliding support is provided with a sliding ring, a connecting rod and an outer connecting sleeve. The sliding ring and the outer connecting sleeve are connected by the connecting rod. The outer connecting sleeve is welded on the wheel set. The inner diameter of the sliding ring is larger than the diameter of the sliding pipe, and the sliding ring is sleeved on the sliding pipe to slide.

4. The replacement device for the traveling bogie group according to claim 3, characterized in that, The connecting rod is an elastic rod, and the elastic rod is a high-strength spring with elasticity.

5. The replacement method of the replacement device for the traveling trolley group according to any one of claims 1-4, characterized in that, It includes the following steps: 1) Pre-drive the crane to the maintenance area, stop the crane steadily. First, sleeve one end of the sliding ring of the sliding support on the sliding pipe, and then fix the sliding pipe on the vertical support of the safety railing by the fixed buckles respectively; 2) Remove the bolts of the old wheel set, and weld the outer connecting sleeve of the sliding support on the surface of the old wheel set of the crane; 3) Move the old wheel set, and at the same time, the sliding ring of the sliding support slides on the sliding pipe, and the old wheel set is gently moved out of the crane girder through the guide rail; 4) Then, use the crane equipment to lift the old wheel set, disconnect the connection of the outer connecting sleeve of the sliding support, lift the old wheel set to the ground, and then lift the new wheel set outside the crane girder; 5) Weld the outer connecting sleeve of the sliding support on the surface of the new wheel set of the crane; 6) Move the new wheel set, and at the same time, the sliding ring of the sliding support slides on the sliding pipe, and the new wheel set is gently moved into the original position from outside the crane girder through the rail; 7) Tighten the bolts of the new wheel set, remove the sliding pipe, fixed buckles and sliding support, and complete the work task.

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