Crane support system of palisade crane beam

Abstract

The utility model belongs to the technical field of industrial building structures. The crane support system of the rock wall crane beam comprises the rock wall crane beam used for being fixedly connected with the interior of surrounding rock, the top face of the rock wall crane beam is provided with a first track and a first crane wheel, and the inner side face of the rock wall crane beam is provided with a second track and a second crane wheel; the first crane wheel is used for moving on the first track and is connected with a cross arm of the L-shaped force transfer lever, and the second crane wheel is used for moving on the second track and is connected with a vertical arm of the L-shaped force transfer lever; the L-shaped force transfer lever is movably connected with a support lug plate, and the support lug plate is connected with a crane beam. Horizontal thrust can be generated under the action of vertical load of a crane through the L-shaped force transmission lever, so that the stability of surrounding rock can be enhanced, the tensile stress of the lower flange of the crane beam is reduced, and the steel consumption of the crane beam is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial building structures, and particularly relates to a crane support system for a rock wall crane beam. Background Technique

[0002] The statements in this part only provide the background technique related to the utility model, and do not necessarily constitute the prior art.

[0003] The rock wall crane beam is mainly applied to the installation and maintenance of electromechanical and other equipment in the underground powerhouse of large-scale water conservancy pivot projects. The rock wall crane beam is the foundation of the running track of the bridge crane. The rock wall crane beam in the underground powerhouse is attached to the rock walls on the upstream and downstream side walls of the powerhouse through anchor bolts and its own cross-sectional shape. This structural form avoids setting a separate crane column for the crane beam, can reduce the span of the powerhouse, not only greatly saves the engineering quantity, but also can construct the rock wall crane beam during the staged excavation process of the underground powerhouse. It is the main structural form of the crane beam in the current underground powerhouse.

[0004] The installation and maintenance loads of electromechanical and other equipment in the underground powerhouse are relatively large. Usually, a bridge crane with a large lifting weight is adopted. Vertical steel rails are arranged on the rock wall crane beam, and the bridge crane is supported by vertical crane wheels on the steel rails. When the bridge crane runs, the vertical load is transmitted to the rock wall crane beam in the form of wheel pressure through the vertical steel rails, and the horizontal braking force is transmitted to the rock wall crane beam in the form of shear force through the vertical steel rails.

[0005] The inventor found that the existing crane beam in the underground powerhouse bears the vertical load of the crane system, and the vertical load shears the side wall rock. Under the action of the crane braking load, the shear failure of the vertical steel rails and crane wheels significantly increases the instability of the surrounding rock. Content of the Utility Model

[0006] In order to solve the deficiencies of the prior art, the utility model provides a crane support system for a rock wall crane beam. Through the L-shaped force transmission lever, a horizontal thrust can be generated under the action of the vertical load of the crane, which is beneficial to enhancing the stability of the surrounding rock. At the same time, the tensile stress of the lower flange of the crane beam is reduced, and the steel consumption of the crane beam is reduced.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A crane support system for a rock wall crane beam includes: a rock wall crane beam fixedly connected to the inside of the surrounding rock. A first track and a first crane wheel are arranged on the top surface of the rock wall crane beam, and a second track and a second crane wheel are arranged on the inner side surface of the rock wall crane beam;

[0009] The first hoisting wheel is used to move on the first track, and the first hoisting wheel is connected to the horizontal arm of the L-shaped force transmission lever. The second hoisting wheel is used to move on the second track, and the second hoisting wheel is connected to the vertical arm of the L-shaped force transmission lever;

[0010] The L-shaped force transmission lever is movably connected to the support ear plate, and the support ear plate is connected to the crane girder.

[0011] As a further limitation of the present invention, the inner wall and the outer wall of the bent part of the L-shaped force transmission lever are both arc-shaped.

[0012] As a further limitation of the present invention, the vertical arm and the horizontal arm of the L-shaped force transmission lever have the same length.

[0013] As a further limitation of the present invention, the L-shaped force transmission lever is movably connected to the support ear plate through a pin shaft.

[0014] As a further limitation of the present invention, the surrounding rock includes a middle vertical plane and a bottom inner inclined plane. The outer bottom of the rock wall crane girder is inclined and is fixedly connected in a fitting manner with the bottom inner inclined plane. The outer vertical plane of the rock wall crane girder is fixedly connected in a fitting manner with the middle vertical plane.

[0015] As a further limitation of the present invention, the top surface of the rock wall crane girder is perpendicular to the inner side surface of the rock wall crane girder.

[0016] As a further limitation of the present invention, the top surface of the rock wall crane girder is adjacent to the inner side surface of the rock wall crane girder.

[0017] As a further limitation of the present invention, the axle of the first hoisting wheel and the axle of the second hoisting wheel are perpendicular to each other.

[0018] As a further limitation of the present invention, the support ear plate and the lower flange of the crane girder are connected by a weld.

[0019] As a further limitation of the present invention, both the first track and the second track are steel rails.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The present invention innovatively proposes a crane support system for a rock wall crane girder. Through the force transmission lever, this crane support system can generate a horizontal thrust under the action of the vertical load of the crane, and the horizontal thrust squeezes the rock wall through the rock wall crane girder, which is beneficial to the stability of the surrounding rock.

[0022] 2. The present utility model innovatively proposes a crane support system for a rock wall crane beam. By adjusting the relative lengths between the vertical arm and the horizontal arm of the force transmission lever, the designability of the relative magnitudes between the vertical load and the horizontal thrust can be achieved. When the vertical load is large, the stability of the surrounding rock is weakened. By increasing the horizontal thrust in equal proportion, the weakening of the surrounding rock stability can be reduced, and the relative stability of the surrounding rock under different lifting weights can be realized.

[0023] 3. The present utility model innovatively proposes a crane support system for a rock wall crane beam. The lower flange of the crane beam receives the reaction force of the horizontal thrust from the support. This reaction force compresses the lower flange of the crane beam, which can reduce the tensile stress of the lower flange of the crane beam, optimize the design of the crane beam, and reduce the steel consumption of the crane beam.

[0024] 4. The present utility model innovatively proposes a crane support system for a rock wall crane beam. The articulated force transmission lever enables the two sets of tracks and crane wheels to only bear axial pressure, avoiding the shear failure of the vertical tracks and crane wheels under the action of the braking load of the crane beam. The forces on the tracks and crane wheels are simple, and the setting requirements are relatively low.

[0025] Advantages of additional aspects of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0027] Figure 1 is a schematic cross-sectional view of the crane support system for the rock wall crane beam provided by the present utility model;

[0028] Wherein, 1. Rock wall crane beam; 2. Tracks and crane wheels; 21. First track; 22. First crane wheel; 23. Second track; 24. Second crane wheel; 3. L-shaped force transmission lever; 4. Pin shaft; 5. Support ear plate; 6. Crane beam. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0030] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanations for the present utility model. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs.

[0031] In this implementation, a crane support system for a rock wall crane beam is proposed, including: a rock wall crane beam 1 fixedly connected to the interior of the surrounding rock, and tracks and crane wheels 2 are arranged on the top surface and the inner side surface of the rock wall crane beam 1;

[0032] Specifically, a first track 21 and a first crane wheel 22 are arranged on the top surface of the rock wall crane beam 1, and a second track 23 and a second crane wheel 24 are arranged on the inner side surface of the rock wall crane beam. The first crane wheel 22 is used to move on the first track 21, and the first crane wheel 22 is connected to the horizontal arm of the L-shaped force transfer lever 3. The second crane wheel 24 is used to move on the second track 23, and the second crane wheel 24 is connected to the vertical arm of the L-shaped force transfer lever 3;

[0033] The L-shaped force transfer lever 3 is movably connected to the support ear plate 5, and the support ear plate 5 is connected to the crane beam 6.

[0034] In this implementation, preferably, the inner wall and the outer wall of the bent part of the L-shaped force transfer lever 3 are both arc-shaped.

[0035] In this implementation, preferably, the vertical arm and the horizontal arm of the L-shaped force transfer lever 3 have the same length, or other different lengths can also be selected. By adjusting the relative length of the lever arms of the L-shaped force transfer lever 3, the designability of the relative magnitudes between the vertical load and the horizontal thrust can be achieved. When the vertical load is large, the stability of the surrounding rock is weakened, and the weakening of the stability of the surrounding rock is reduced by increasing the horizontal thrust in equal proportion, so as to achieve the relative stability of the stability of the surrounding rock under different lifting weights.

[0036] In this implementation, preferably, the L-shaped force transfer lever 3 is movably connected to the support ear plate 5 through a pin shaft 4, and the support ear plate 5 is connected to the lower flange of the crane beam 6 by welding.

[0037] In this implementation, preferably, the surrounding rock includes a middle vertical plane and a bottom inner inclined plane. The outer bottom of the rock wall crane beam 1 is inclined and fixedly connected to the bottom inner inclined plane in a fitting manner, and the outer vertical plane of the rock wall crane beam 1 is fixedly connected to the middle vertical plane in a fitting manner.

[0038] In this implementation, preferably, the top surface of the rock wall crane beam 1 is perpendicular to the inner side surface of the rock wall crane beam 1, and the top surface of the rock wall crane beam 1 is adjacent to the inner side surface of the rock wall crane beam 1.

[0039] In this implementation, preferably, the axle of the first crane wheel 22 is perpendicular to the axle of the second crane wheel 24.

[0040] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A crane support system for a rock wall crane beam, characterized in that it includes: a rock wall crane beam fixedly connected to the interior of the surrounding rock. A first track and a first crane wheel are provided on the top surface of the rock wall crane beam, and a second track and a second crane wheel are provided on the inner side surface of the rock wall crane beam; The first crane wheel is used to move on the first track, and the first crane wheel is connected to the horizontal arm of the L-shaped force transfer lever. The second crane wheel is used to move on the second track, and the second crane wheel is connected to the vertical arm of the L-shaped force transfer lever; The L-shaped force transfer lever is movably connected to the support ear plate, and the support ear plate is connected to the crane beam.

2. The crane support system for a rock wall crane beam according to claim 1, characterized in that both the inner wall and the outer wall of the bent part of the L-shaped force transfer lever are arc-shaped.

3. The crane support system for a rock wall crane beam according to claim 1, characterized in that the vertical arm and the horizontal arm of the L-shaped force transfer lever have the same length.

4. The crane support system for a rock wall crane beam according to claim 1, characterized in that the L-shaped force transfer lever is movably connected to the support ear plate through a pin shaft.

5. The crane support system for a rock wall crane beam according to claim 1, characterized in that the surrounding rock includes a middle vertical plane and a bottom inner inclined plane. The outer bottom of the rock wall crane beam is inclined and fixedly connected in fit with the bottom inner inclined plane, and the outer vertical plane of the rock wall crane beam is fixedly connected in fit with the middle vertical plane.

6. The crane support system for a rock wall crane beam according to claim 1, characterized in that the top surface of the rock wall crane beam is perpendicular to the inner side surface of the rock wall crane beam.

7. The crane support system for a rock wall crane beam according to claim 6, characterized in that the top surface of the rock wall crane beam is adjacent to the inner side surface of the rock wall crane beam.

8. The crane support system for a rock wall crane beam according to claim 1, characterized in that the axle of the first crane wheel and the axle of the second crane wheel are perpendicular to each other.

9. The crane support system for a rock wall crane beam according to claim 1, characterized in that the support ear plate and the lower flange of the crane beam are connected by welding.

10. The crane support system for a rock wall crane beam according to claim 1, characterized in that both the first track and the second track are steel rails.

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