Cart traveling mechanism applied to crane

Abstract

The utility model discloses a cart traveling mechanism applied to a crane, which comprises a cart body and is provided with a moving structure, a third connecting column is fixedly connected to the inner side of a first connecting column, a driving column is fixedly connected to the outer side of the third connecting column, and an adjusting column is movably connected to one side of the driving column and is connected with a third fixing column through a third connecting shaft. The spiral spring is arranged on one side of the adjusting column. When the device encounters a highly fluctuant terrain, an adjusting column moves along a third connecting shaft under the elastic action of a spiral spring, when the device encounters a convex ground, the adjusting column is subjected to upward force to compress the spiral spring and move upwards, and when the device encounters a concave ground, the spiral spring extends to push the adjusting column to move downwards. By arranging the moving structure, the advantages of multiple aspects are achieved, and by means of a stable structure formed by connecting multiple layers of fixing columns, it is guaranteed that the vehicle body and the moving part are stably connected, the weight is evenly dispersed, and the driving stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a crane trolley walking technology field, concretely is a trolley walking mechanism for crane. BACKGROUND

[0002] Crane as indispensable important equipment in modern industrial production, logistics transportation and construction fields, plays a key role in material handling, equipment installation and other operations. As a key component of the crane, the trolley walking mechanism undertakes the important task of moving the whole crane horizontally in the operation site. The existing trolley walking mechanism applied to the crane is prone to jolt when driving on uneven sections, causing unstable operation of the crane, and when the trolley transports the crane, the length of the car hopper is fixed and cannot be changed, which may cause the trolley to be unstable when turning, posing a great safety hazard.

[0003] Announced as CN219156326U, discloses a crane trolley walking mechanism, including trolley walking wheel, two upper end beams are provided with gear column which is parallel to main beam, both ends of gear column are drivingly connected with trolley walking wheel on upper end beam, trolley walking mechanism further includes support frame fixed on crane trolley, top end of support frame is fixed with several groups of trolley power mechanism, trolley power mechanism is drivingly connected with gear column, trolley power mechanism is provided with two groups and is symmetrically arranged, trolley power mechanism includes vertically arranged trolley walking motor, first bevel gear is fixed on power output shaft of trolley walking motor, lower end of support frame is rotatably assembled with horizontally arranged transmission shaft, second bevel gear and first gear are fixed on transmission shaft, first bevel gear and second bevel gear are engaged with each other, first gear is engaged with gear column, the utility model has the advantages of simple structure and convenient use.

[0004] For the above prior art, the inventor believes that there are the following shortcomings. The crane trolley walking mechanism sets two groups of trolley power mechanisms symmetrically, the trolley power mechanism includes a vertically arranged trolley walking motor, a first bevel gear is fixed on the power output shaft of the trolley walking motor, a horizontally arranged transmission shaft is rotatably assembled at the lower end of the support frame, a second bevel gear and a first gear are fixed on the transmission shaft, the first bevel gear and the second bevel gear are engaged with each other, and the first gear is engaged with the gear column. The utility model has the advantages of simple structure and convenient use. However, the existing trolley walking mechanism applied to the crane is prone to jolt when driving on uneven sections, causing unstable operation of the crane, and when the trolley transports the crane, the length of the car hopper is fixed and cannot be changed, which may cause the trolley to be unstable when turning, posing a great safety hazard. UTILITY MODEL CONTENTS

[0005] The purpose of this utility model is to provide a crane trolley traveling mechanism to solve the problem mentioned in the background art. This crane trolley traveling mechanism uses two symmetrically arranged trolley power mechanisms. The trolley power mechanism includes a vertically arranged trolley traveling motor, a first bevel gear fixed on the power output shaft of the trolley traveling motor, and a horizontally arranged transmission shaft rotatably mounted on the lower end of the support frame. A second bevel gear and a first gear are fixed on the transmission shaft. The first and second bevel gears mesh with each other, and the first gear meshes with a gear post. This utility model has a simple structure and is easy to use. However, existing crane trolley traveling mechanisms are prone to bumps when traveling on uneven roads, causing unstable crane operation. Furthermore, when transporting a crane, the length of the trolley bucket is fixed and cannot be changed. An excessively long bucket during turns may cause instability in the crane's center of gravity, posing a significant safety hazard.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a traveling mechanism for a crane, comprising a crane body:

[0008] A movable structure is fixedly connected to the lower side of the vehicle body. The movable structure includes a fixed column one, a fixed column two, a fixed column three, and a connecting bottom column.

[0009] The first fixing column is fixedly connected to the lower side of the connecting plate, the second fixing column is fixedly connected to the lower side of the first fixing column, the third fixing column is fixedly connected to the lower side of the second fixing column, and the bottom connecting column is fixedly installed on the lower side of the third fixing column.

[0010] Furthermore, the movable structure also includes a first connecting shaft, a first connecting post, and a second connecting post;

[0011] The first connecting shaft is movably connected to the inner cavity of the connecting bottom column, the first connecting column is movably connected to the outer side of the first connecting shaft, and the second connecting column is movably connected to the inner side of the first connecting column.

[0012] Furthermore, the movable structure also includes a connecting shaft and a moving wheel;

[0013] The second connecting shaft is movably connected to one side of the second connecting column, and the movable wheel is movably connected to one side of the second connecting shaft.

[0014] Furthermore, the movable structure also includes a connecting column three, a driving column, an adjusting column, and a connecting shaft three;

[0015] The third connecting column is fixedly connected to the inner side of the first connecting column, the driving column is fixedly connected to the outer side of the third connecting column, the adjusting column is movably connected to one side of the driving column, and the third connecting shaft is movably connected to the inner cavity of the adjusting column.

[0016] The adjusting column is connected to the fixed column three via a connecting shaft three, and the connecting shaft three is fixedly installed on one side of the fixed column three.

[0017] Furthermore, the moving structure also includes a helical spring;

[0018] The helical spring is fixedly installed on one side of the adjusting column;

[0019] The adjusting columns are respectively located on both sides of the helical spring.

[0020] Furthermore, an adjustment structure is fixedly connected to the upper side of the vehicle body, the adjustment structure including a cylinder, a telescopic column, a connecting column, and a bearing plate.

[0021] The cylinder is fixedly connected to the upper side of the vehicle body, the telescopic column is movably connected to the inner side of the cylinder, the connecting column is fixedly connected to one end of the telescopic column, and the bearing plate is fixedly connected to one side of the connecting column.

[0022] The support plate is movably connected to the vehicle body.

[0023] Furthermore, the adjustment structure also includes cylinder two, telescopic column two, connecting column five, and bearing plate two;

[0024] The second cylinder is fixedly connected to the upper side of the first bearing plate, the second telescopic column is movably connected to the inner side of the second cylinder, the fifth connecting column is fixedly connected to one end of the second telescopic column, and the second bearing plate is fixedly connected to one side of the fifth connecting column.

[0025] The second support plate is movably connected to the upper side of the first support plate.

[0026] This utility model has the following beneficial effects:

[0027] I. This utility model features a movable structure. Connecting column three is fixedly connected to the inner side of connecting column one, driving column is fixedly connected to the outer side of connecting column three, and adjusting column is movably connected to one side of driving column and connected to fixed column three via connecting shaft three. A helical spring is located on one side of the adjusting column. When the device encounters terrain with significant elevation changes, the adjusting column will move along connecting shaft three under the elastic action of the helical spring. When encountering raised ground, the adjusting column experiences an upward force, compressing the helical spring and moving upward. When encountering recessed ground, the helical spring extends, pushing the adjusting column downward, thus ensuring stable movement of the vehicle body and reducing the impact of terrain changes on the device. This movable structure offers several advantages. Its stable architecture with multiple fixed column connections ensures a secure connection between the vehicle body and the moving components, evenly distributing weight and improving driving stability.

[0028] II. Based on the aforementioned beneficial effects, an adjustment structure is also provided. When cylinder one is activated, telescopic column one extends and retracts inside cylinder one. The extension and retraction of telescopic column one drives connecting column four to move, thereby causing the bearing plate one, which is fixed to one side of connecting column four, to move on the upper side of the vehicle body. When cylinder two is activated, telescopic column two extends and retracts inside cylinder two. The extension and retraction of telescopic column two is transmitted to bearing plate two through connecting column five. Bearing plate two is movably connected to bearing plate one and can flexibly follow telescopic column two to move simultaneously. By extending and retracting the bearing plate, the size and length of the bearing plate can be adjusted, lowering the overall center of gravity of the crane. When the vehicle body turns, the lower center of gravity reduces the influence of centrifugal force, making the turning process more stable and reducing the possibility of the crane overturning or other dangers during turns, thus improving operational safety. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0030] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0031] Figure 2 This is a schematic diagram of the connection of the fixed column of the movable structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the three connections of the movable structure connecting column of this utility model;

[0033] Figure 4 This is a schematic diagram of the connection of the cylinder of the adjusting structure of this utility model.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] In the diagram: 1. Vehicle body; 2. Moving structure; 3. Adjusting structure; 201. Fixed column one; 202. Fixed column two; 203. Fixed column three; 204. Connecting bottom column; 205. Connecting shaft one; 206. Connecting column one; 207. Connecting column two; 208. Connecting shaft two; 209. Moving wheel; 210. Connecting column three; 211. Driving column; 212. Adjusting column; 213. Connecting shaft three; 214. Helical spring; 301. Cylinder one; 302. Telescopic column one; 303. Connecting column four; 304. Bearing plate one; 305. Cylinder two; 306. Telescopic column two; 307. Connecting column five; 308. Bearing plate two. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0038] Please see Figures 1-4 As shown, this utility model is a trolley traveling mechanism applied to a crane, including a trolley body 1:

[0039] A movable structure 2 is fixedly connected to the lower side of the vehicle body 1. The movable structure 2 includes a first fixed column 201, a second fixed column 202, a third fixed column 203, and a connecting bottom column 204.

[0040] Fixed column 1 201 is fixedly connected to the lower side of the connecting plate, fixed column 202 is fixedly connected to the lower side of fixed column 1 201, fixed column 3 203 is fixedly connected to the lower side of fixed column 2 202, and connecting bottom column 204 is fixedly installed on the lower side of fixed column 3 203.

[0041] Fixed column 1 201, fixed column 2 202, and fixed column 3 203 are connected in sequence to provide stable support and transmit force.

[0042] The movable structure 2 also includes a connecting shaft 205, a connecting column 206, and a connecting column 207;

[0043] Connecting shaft 1 205 is movably connected to the inner cavity of connecting base post 204, connecting post 1 206 is movably connected to the outer side of connecting shaft 1 205, and connecting post 2 207 is movably connected to the inner side of connecting post 1 206.

[0044] The connecting shaft 205 is movably connected to the inner cavity of the connecting column 204, allowing the connecting column 206 to rotate within a certain range around the connecting shaft 205. This rotating structure design allows the connecting column 206 to flexibly adjust its angle according to road conditions or steering requirements during crane movement.

[0045] The movable structure 2 also includes a connecting shaft 208 and a moving wheel 209;

[0046] Connecting shaft 208 is movably connected to one side of connecting column 207, and movable wheel 209 is movably connected to one side of connecting shaft 208.

[0047] The second connecting shaft 208 is movably connected to one side of the second connecting column 207, providing a shaft support for the rotation of the moving wheel 209.

[0048] The movable structure 2 also includes a connecting column 210, a driving column 211, an adjusting column 212, and a connecting shaft 213;

[0049] Connecting column 3 210 is fixedly connected to the inner side of connecting column 1 206, driving column 211 is fixedly connected to the outer side of connecting column 3 210, adjusting column 212 is movably connected to one side of driving column 211, and connecting shaft 3 213 is movably connected to the inner cavity of adjusting column 212.

[0050] The adjusting column 212 is connected to the fixed column 203 via the connecting shaft 213, and the connecting shaft 213 is fixedly installed on one side of the fixed column 203.

[0051] When the moving wheel 209 encounters a bump or a depression, the adjusting column 212 will rotate accordingly through the connecting shaft 213 under the action of the driving column 211 to maintain good contact between the moving wheel 209 and the ground and improve the stability of the crane's movement.

[0052] The moving structure 2 also includes a helical spring 214;

[0053] The helical spring 214 is fixedly installed on one side of the adjusting column 212;

[0054] Adjustment pins 212 are respectively set on both sides of the helical spring 214.

[0055] When the external force disappears, the helical spring 214 will push the adjusting column 212 back to its original position by its own elastic restoring force, so that the moving wheel 209 is kept in a suitable working state and the crane is kept running stably.

[0056] Working principle: Connecting column 3 210 is fixedly connected to the inner side of connecting column 1 206, driving column 211 is fixedly connected to the outer side of connecting column 3 210, adjusting column 212 is movably connected to one side of driving column 211 and connected to fixed column 3 203 through connecting shaft 3 213, and helical spring 214 is set on one side of adjusting column 212. When the device encounters terrain with large undulations, adjusting column 212 will move along connecting shaft 3 213 under the elastic action of helical spring 214. When encountering raised ground, adjusting column 212 is subjected to an upward force, which will compress helical spring 214 and move upward. When encountering concave ground, helical spring 214 will extend and push adjusting column 212 downward, thereby ensuring the smooth movement of vehicle body 1 and reducing the impact of terrain changes on the device.

[0057] This step, through the setting of the moving structure 2, offers several advantages. Its stable architecture, with its multi-layered fixed column connection, ensures a secure connection between the vehicle body 1 and the moving components, evenly distributing weight and improving driving stability.

[0058] Please see Figures 1-4 As shown, this embodiment, based on the above embodiment, further includes an adjustment structure 3.

[0059] An adjustment structure 3 is fixedly connected to the upper side of the vehicle body 1. The adjustment structure 3 includes a cylinder 301, a telescopic column 302, a connecting column 303, and a support plate 304.

[0060] Cylinder 301 is fixedly connected to the upper side of vehicle body 1, telescopic column 302 is movably connected to the inner side of cylinder 301, connecting column 303 is fixedly connected to one end of telescopic column 302, and bearing plate 304 is fixedly connected to one side of connecting column 303.

[0061] The support plate 304 is movably connected to the vehicle body 1.

[0062] The support plate 304 is movably connected to the vehicle body 1 through a guide rail structure, which ensures the stability and smoothness of the support plate 304 during its up-and-down movement.

[0063] The adjustment structure 3 also includes cylinder 2 305, telescopic column 2 306, connecting column 5 307 and bearing plate 2 308;

[0064] Cylinder 2 305 is fixedly connected to the upper side of bearing plate 1 304, telescopic column 2 306 is movably connected to the inner side of cylinder 2 305, connecting column 5 307 is fixedly connected to one end of telescopic column 2 306, and bearing plate 2 308 is fixedly connected to one side of connecting column 5 307.

[0065] The second support plate 308 is movably connected to the upper side of the first support plate 304.

[0066] A guide rail is installed on the first carrier plate 304 to enable the second carrier plate 308 to move flexibly and make fine adjustments to its angle on the first carrier plate 304.

[0067] Working principle: When cylinder 1 (301) is activated, telescopic column 1 (302) extends and retracts inside cylinder 1 (301). The extension and retraction of telescopic column 1 (302) drives connecting column 4 (303) to move, which in turn causes the bearing plate 1 (304) fixed to one side of connecting column 4 (303) to move on the upper side of vehicle body 1. When cylinder 2 (305) is activated, telescopic column 2 (306) extends and retracts inside cylinder 2 (305). The extension and retraction of telescopic column 2 (306) is transmitted to bearing plate 2 (308) through connecting column 5 (307). Bearing plate 2 (308) is movably connected to bearing plate 1 (304) and can flexibly follow telescopic column 2 (306) to move simultaneously. By extending and retracting the bearing plate, the size and length of the bearing plate can be adjusted, lowering the overall center of gravity of the crane. When vehicle body 1 turns, the lower center of gravity reduces the influence of centrifugal force, making the turning process more stable and reducing the possibility of the crane tipping over during turns, thus improving operational safety.

[0068] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0069] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A travelling mechanism for a crane, characterized in that, Including the car body (1): The lower side of the car body (1) is fixedly connected with a moving structure (2), the moving structure (2) comprises a fixed column one (201), a fixed column two (202), a fixed column three (203) and a connecting bottom column (204); The fixed column one (201) is fixedly connected to the lower side of the connecting plate, the fixed column two (202) is fixedly connected to the lower side of the fixed column one (201), the fixed column three (203) is fixedly connected to the lower side of the fixed column two (202), and the connecting bottom column (204) is fixedly arranged on the lower side of the fixed column three (203).

2. A trolley travelling mechanism for a crane as claimed in claim 1 wherein: The moving structure (2) further comprises a connecting shaft one (205), a connecting column one (206) and a connecting column two (207); The connecting shaft one (205) is movably connected in the inner cavity of the connecting bottom column (204), the connecting column one (206) is movably connected to the outer side of the connecting shaft one (205), and the connecting column two (207) is movably connected to the inner side of the connecting column one (206).

3. A trolley travelling mechanism for a crane as claimed in claim 1 wherein: The moving structure (2) further comprises a connecting shaft two (208) and a moving wheel (209); The connecting shaft two (208) is movably connected to one side of the connecting column two (207), and the moving wheel (209) is movably connected to one side of the connecting shaft two (208).

4. A trolley travelling mechanism for a crane as claimed in claim 2 wherein: The moving structure (2) further comprises a connecting column three (210), a driving column (211), an adjusting column (212) and a connecting shaft three (213); The connecting column three (210) is fixedly connected to the inner side of the connecting column one (206), the driving column (211) is fixedly connected to the outer side of the connecting column three (210), the adjusting column (212) is movably connected to one side of the driving column (211), and the connecting shaft three (213) is movably connected in the inner cavity of the adjusting column (212); The adjusting column (212) is connected through the connecting shaft three (213) and the fixed column three (203), and the connecting shaft three (213) is fixedly arranged on one side of the fixed column three (203).

5. A trolley travelling mechanism for a crane as claimed in claim 4 wherein: The moving structure (2) further comprises a spiral spring (214); The spiral spring (214) is fixedly arranged on one side of the adjusting column (212); The adjusting column (212) is arranged on both sides of the spiral spring (214) respectively.

6. A trolley travelling mechanism for a crane as claimed in claim 1 wherein: The upper side of the car body (1) is fixedly connected with an adjusting structure (3), the adjusting structure (3) comprises a cylinder one (301), a telescopic column one (302), a connecting column four (303) and a bearing plate one (304); The cylinder one (301) is fixedly connected to the upper side of the car body (1), the telescopic column one (302) is movably connected to the inner side of the cylinder one (301), the connecting column four (303) is fixedly connected to one end of the telescopic column one (302), and the bearing plate one (304) is fixedly connected to one side of the connecting column four (303); The bearing plate one (304) and the car body (1) are movably connected.

7. A trolley travelling mechanism for a crane as claimed in claim 6 wherein: The adjusting structure (3) further comprises a cylinder two (305), a telescopic column two (306), a connecting column five (307) and a bearing plate two (308); The second cylinder (305) is fixedly connected to the upper side of the first bearing plate (304), the second telescopic column (306) is movably connected to the inner side of the second cylinder (305), the fifth connecting column (307) is fixedly connected to one end of the second telescopic column (306), and the second bearing plate (308) is fixedly connected to one side of the fifth connecting column (307). The second bearing plate (308) is movably connected to the upper side of the first bearing plate (304).

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