Walking trolley of general bridge crane

Abstract

The utility model discloses a walking trolley of a general bridge crane, which comprises a mounting frame and two walking beams, the mounting frame is arranged above the walking beams, and two telescopic sleeves are arranged between the two walking beams; the telescopic sleeve comprises an inner sleeve body and two outer sleeve bodies, the two outer sleeve bodies are slidably connected to the two ends of the inner sleeve body respectively, one end of each outer sleeve body is fixedly connected to the inner side of the walking beam, a sliding groove is formed in the other end of each outer sleeve body, and the end of the inner sleeve body is slidably connected into the sliding groove; the interior of the inner sleeve is fixedly connected with a bidirectional telescopic rod, and the two ends of the bidirectional telescopic rod are fixedly connected into the sliding grooves in the two sides correspondingly. A connecting block is fixedly connected between the inner sleeve and the mounting frame, a sliding way is formed in the top of the outer sleeve, and a sliding block is arranged at the bottom of the mounting frame and slidably connected into the sliding way. According to the walking trolley, the distance between the walking beams can be adjusted, so that the distance between the walking beams can correspond to the distance between main beams of different bridge cranes, the application range of the walking trolley is widened, and the universality of the walking trolley is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a traveling trolley of a general bridge crane. Background Art

[0002] The traveling trolley is an important part of large lifting equipment, especially a bridge crane, and is used to drive the spreader for translation and lifting. However, for different bridge cranes, the distance between the main girders is not the same, and the specifications of the main girders are also set according to the actual working environment without a unified standard. Therefore, the specifications of the traveling trolleys are also different and need to be designed separately according to the corresponding distance between the main girders of the crane, which results in poor versatility of the traveling trolley and is not convenient for manufacturing. Content of the Utility Model

[0003] The purpose of the utility model is to provide a traveling trolley of a general bridge crane, which can adjust the distance between the traveling beams so that it can correspond to the distance between the main girders of different bridge cranes, thereby increasing the applicable range of the traveling trolley and improving its versatility.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions: A traveling trolley of a general bridge crane includes a mounting frame and two traveling beams. The mounting frame is arranged above the traveling beams, and a drum mechanism is arranged on the mounting frame. Two telescopic sleeves are symmetrically arranged between the two traveling beams; the telescopic sleeve includes an inner sleeve and two outer sleeves. The two outer sleeves are respectively slidably connected to both ends of the inner sleeve. One end of the outer sleeve is fixedly connected to the inner side of the traveling beam, and a chute is arranged at the other end of the outer sleeve. The end of the inner sleeve is slidably connected in the chute; the inside of the inner sleeve is a hollow structure, and a bidirectional telescopic rod is fixedly connected inside the inner sleeve. Both ends of the bidirectional telescopic rod are respectively fixedly connected in the chutes on both sides; a connecting block is fixedly connected between the inner sleeve and the mounting frame. A slideway is arranged at the top of the outer sleeve, and a slider matching the slideway is arranged at the bottom of the mounting frame. The slider is slidably connected in the slideway.

[0005] Optionally, a plurality of support rollers are rotatably connected to the top of the outer sleeve, and the support rollers are in contact with the bottom of the mounting frame.

[0006] Optionally, there are two slideways at the top of the outer sleeve, and two sliders are correspondingly arranged at the bottom of the mounting frame.

[0007] Optionally, buffer pads are installed at both ends of the inner sleeve and the outer sleeve.

[0008] Optionally, buffers are installed at both ends of the traveling beam.

[0009] Optionally, anti-tipping rollers are arranged at both ends of the traveling beam.

[0010] The trolley of the general bridge crane of the present utility model has the following advantages:

[0011] (1) The mounting frame is fixed in position through the inner sleeve to keep the overall structure of the trolley stable. The outer sleeve drives the walking beams on both sides to contract inward or expand outward, so as to adjust the distance between the two walking beams to match the distance between the main beams of the crane, with a wide range of applications and strong versatility.

[0012] (2) The support rollers can play a role in assisting the support of the mounting frame and improve the stability of the trolley.

[0013] (3) The buffer pads can avoid knocking when the outer sleeve expands and contracts, and reduce the risk of damage to the inner sleeve and the outer sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural view of the present utility model.

[0015] Figure 2 is a top view of the present utility model.

[0016] Figure 3 is a schematic connection view of the walking beam and the telescopic sleeve.

[0017] Figure 4 is a schematic view of the state where the telescopic sleeve contracts.

[0018] Figure 5 is a schematic view of the state where the telescopic sleeve extends. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further described below with reference to the accompanying drawings.

[0020] Such as Figures 1 - 5As shown in the figure, a traveling trolley of a general overhead crane includes a mounting frame 2 and two traveling beams 1. The mounting frame 2 is arranged above the traveling beams 1. A drum mechanism 3 is provided on the mounting frame 2. Buffers 4 are installed at both ends of the traveling beams 1 to relieve the impact force during collision. Anti-tipping rollers 5 are also provided at the bottom of both ends of the traveling beams 1. The anti-tipping rollers 5 are located on both sides of the main beam track to ensure the stable movement of the traveling trolley. Two telescopic sleeves are symmetrically arranged between the two traveling beams 1. The telescopic sleeve includes an inner sleeve 6 and two outer sleeves 7. The two outer sleeves 7 are respectively slidably connected to both ends of the inner sleeve 6. One end of the outer sleeve 7 is fixedly connected to the inner side of the traveling beam 1. A chute 8 is provided at the other end of the outer sleeve 7. The end of the inner sleeve 6 is slidably connected to the chute 8. The inside of the inner sleeve 6 is a hollow structure. A double-acting telescopic rod 9 is fixedly connected to the middle position inside the inner sleeve 6. Both ends of the double-acting telescopic rod 9 are respectively fixedly connected to the chutes 8 on both sides. Both ends of the double-acting telescopic rod 9 contract inward or expand outward synchronously, thereby driving the two outer sleeves 7 to move synchronously. A connecting block 10 is fixedly connected between the inner sleeve 6 and the mounting frame 2. Two symmetrically arranged slideways 11 are provided at the top of the outer sleeve 7. A slider 12 matching the slideway 11 is provided at the bottom of the mounting frame 2. The slider 12 is slidably connected to the slideway 11. The cooperation between the slider 12 and the slideway 11 can not only ensure the smooth movement of the outer sleeve 7, but also enable the outer sleeve 7 to play a certain supporting role on the mounting frame 2. A number of support rollers 13 are also rotatably connected to the outside of the top of the outer sleeve 7. The rotation direction of the support rollers 13 is adapted to the movement direction of the outer sleeve 7. The support rollers 13 are in contact with the bottom of the mounting frame 2, which can reduce the resistance of the outer sleeve 7 during movement and can further play a role in supporting the mounting frame 2. With the joint support of the connecting block 10, the slider 12 and the support rollers 13, the stability of the mounting frame 2 can be guaranteed. Buffer pads 14 are installed at both ends of the inner sleeve 6 and the outer sleeve 7. The buffer pad 14 at the end of the inner sleeve 6 is to prevent the two ends of the inner sleeve 6 from colliding with the bottom of the chute 8 when the outer sleeve 7 contracts. The buffer pad 14 at the end of the outer sleeve 7 is to prevent the end of the outer sleeve 7 from colliding with the connecting block 10 when the outer sleeve 7 contracts, reducing the risk of damage to the telescopic sleeve.

[0021] By the elongation or contraction of the double-acting telescopic rod 9, the two traveling beams 1 on both sides can be driven to expand outward or contract inward synchronously, so as to adjust the distance between the two traveling beams 1 to adapt to the main beams of different specifications of cranes, thereby increasing the applicable range of the traveling trolley and improving its versatility.

[0022] The embodiments described above are only partial embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Claims

1. A traveling trolley of a general overhead crane, characterized in that: It includes a mounting frame and two walking beams. The mounting frame is arranged above the walking beams. A drum mechanism is provided on the mounting frame. Two telescopic sleeves are symmetrically arranged between the two walking beams. The telescopic sleeve includes an inner sleeve and two outer sleeves. The two outer sleeves are respectively slidably connected to both ends of the inner sleeve. One end of the outer sleeve is fixedly connected to the inner side of the walking beam. A chute is provided at the other end of the outer sleeve. The end of the inner sleeve is slidably connected in the chute. The interior of the inner sleeve is a hollow structure. A bidirectional telescopic rod is fixedly connected inside the inner sleeve. Both ends of the bidirectional telescopic rod are respectively fixedly connected in the chutes on both sides. A connecting block is fixedly connected between the inner sleeve and the mounting frame. A slideway is provided at the top of the outer sleeve. A slider matching the slideway is provided at the bottom of the mounting frame. The slider is slidably connected in the slideway.

2. The traveling trolley of the universal overhead crane according to claim 1, characterized in that: A number of support rollers are also rotatably connected to the top of the outer sleeve. The support rollers are in contact with the bottom of the mounting frame.

3. The traveling trolley of the general bridge crane according to claim 1, characterized in that: There are two slideways at the top of the outer sleeve, and two corresponding sliders are provided at the bottom of the mounting frame.

4. The traveling trolley of the general bridge crane according to claim 1, characterized in that: Buffer pads are installed at the ends of both the inner sleeve and the outer sleeve.

5. The traveling trolley of the general bridge crane according to claim 1, characterized in that: Buffers are installed at both ends of the walking beam.

6. The traveling trolley of the general bridge crane according to claim 1, characterized in that: Anti-tipping rollers are provided at both ends of the walking beam.

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