Slurry spraying machine steering mechanism capable of adapting to operation in narrow space

Abstract

The utility model relates to the technical field of concrete spraying equipment, and discloses a slurry spraying machine steering mechanism capable of adapting to narrow space operation, which comprises a wet spraying machine frame, a front wheel module, a rear wheel module, a rotary support bearing, a steering connecting rod, an auxiliary steering connecting rod and a pull rod. According to the shotcrete machine steering mechanism capable of adapting to the operation in the narrow space, the front wheel and the rear wheel are designed into independent modules with rotary supports and are hinged through the X-shaped connecting rod mechanism, when the front wheel module steers, the rear wheel module can be driven to steer synchronously, the front wheel and the rear wheel move in the same track, the factor of inner wheel difference is effectively eliminated, and the steering efficiency of the shotcrete machine is improved. The turning radius of the whole equipment is greatly reduced, the wet spraying machine can flexibly move in places with narrow space and complex terrain, the guniting operation requirement is met, the structure is compact, and main body components such as a pumping system, a hydraulic system and a guniting system of the wet spraying machine are installed on the rectangular rack in a centralized mode.

Description

Technical Field

[0001] This utility model relates to the field of concrete spraying equipment technology, specifically a spraying machine steering mechanism that can adapt to operation in confined spaces. Background Technology

[0002] Pump-type wet shotcrete machines are a commonly used type of concrete spraying equipment, widely used in construction sites such as tunnel engineering, mine shafts, and underground engineering.

[0003] However, existing wet shotcrete machines are large in size and heavy in weight, making them difficult to move. Most of their chassis adopt the traditional front-wheel steering and rear-wheel fixed structure. Due to the "inner wheel difference", the turning radius is too large. This makes it difficult for wet shotcrete machines to move when changing working sections after entering narrow construction sites such as tunnels and shafts. They may even be unable to reach areas with corners and complex terrain to carry out shotcrete operations, which greatly limits the scope of use of the equipment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To overcome the aforementioned shortcomings of the prior art, this utility model provides a shotcrete machine steering mechanism that can adapt to operation in confined spaces, solving the problems in the prior art:

[0006] The wet shotcrete machine suffers from difficulties in turning and cumbersome operation in confined spaces. This utility model provides a shotcrete machine steering mechanism that can adapt to operation in confined spaces, thereby solving the problem that wet shotcrete machines are inconvenient to move in confined spaces due to their large turning radius in the prior art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a shotcrete machine steering mechanism adaptable to operation in confined spaces, comprising: a wet shotcrete machine frame, a front wheel module, a rear wheel module, a slewing support bearing, a steering linkage, an auxiliary steering linkage, and a tie rod. Two connecting discs are welded to the bottom of the wet shotcrete machine frame. These two connecting discs are connected to the slewing supports of the front wheel module and the rear wheel module respectively via the slewing support bearing, thus integrating the wet shotcrete machine frame with the front wheel module and the rear wheel module. The slewing support bearing is freely rotatable. The front wheel module and the rear wheel module are hinged together by two steering linkages and one auxiliary steering linkage forming an X-shaped linkage mechanism. The tie rod is installed at one end of the front wheel of the wet shotcrete machine frame.

[0009] Optionally, the front wheel module includes a front wheel and a front wheel slewing bearing disposed above the front wheel, and the rear wheel module includes a rear wheel and a rear wheel slewing bearing disposed above the rear wheel, wherein the front wheel slewing bearing and the rear wheel slewing bearing are respectively connected to the corresponding slewing support bearing.

[0010] Optionally, both ends of the steering link are hinged to the front wheel module and the rear wheel module respectively through steering connectors. One end of the auxiliary steering link is hinged to the front wheel module through an auxiliary connector, and the other end is hinged to one end of one of the steering links through an auxiliary connector, so as to form a stable X-shaped linkage mechanism.

[0011] Optionally, the wet spraying machine frame has a rectangular structure to ensure that the necessary components can be installed on top of it and to ensure the stability of the installation of each component.

[0012] Optionally, the slewing support bearing and the connecting disc are fixed by welding to ensure a strong connection.

[0013] (III) Beneficial Effects

[0014] This utility model provides a shotcrete machine steering mechanism that can adapt to operation in confined spaces, and has the following beneficial effects:

[0015] 1. The steering mechanism of this shotcrete machine, which can adapt to operation in confined spaces, designs the front and rear wheels as independent modules with slewing bearings and uses an X-shaped linkage mechanism to hinge them together. When the front wheel module turns, it can drive the rear wheel module to turn synchronously, realizing the front and rear wheels moving along the same trajectory. This effectively eliminates the "inner wheel difference" factor, greatly reduces the turning radius of the entire equipment, and enables the wet shotcrete machine to move flexibly in places with narrow spaces and complex terrain, meeting the needs of shotcrete operations.

[0016] 2. The shotcrete machine steering mechanism, which can adapt to operation in confined spaces, has a compact structure. The main components of the wet shotcrete machine, such as the pumping system, hydraulic system, and shotcrete system, are concentrated on a rectangular frame and connected to the front and rear wheel modules through slewing support bearings, ensuring the stability of the chassis and making the structure of the entire equipment more reasonable, which is convenient for installation and maintenance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of this utility model from below;

[0020] Figure 4 This utility model Figure 1 A magnified structural diagram of point A in the middle;

[0021] Figure 5 This utility model Figure 1 A magnified structural diagram of section B.

[0022] In the diagram: 1. Wet spraying machine frame; 2. Front wheel module; 3. Rear wheel module; 4. Slewing bearing; 5. Steering link; 6. Auxiliary steering link; 7. Connecting plate; 8. Front wheel; 9. Front wheel slewing bearing; 10. Rear wheel; 11. Rear wheel slewing bearing; 12. Steering connector; 13. Auxiliary connector; 14. Tie rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by those skilled in the art. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] Example 1:

[0026] Please see Figures 1 to 5This utility model provides a technical solution: a shotcrete machine steering mechanism adaptable to operation in confined spaces, including a wet shotcrete machine frame 1, a front wheel module 2, a rear wheel module 3, a slewing support bearing 4, a steering linkage 5, and an auxiliary steering linkage 6. Two connecting discs 7 are welded to the bottom of the wet shotcrete machine frame 1. The two connecting discs 7 are connected to the slewing supports of the front wheel module 2 and the rear wheel module 3 respectively through the slewing support bearing 4, so that the wet shotcrete machine frame 1 is integrated with the front wheel module 2 and the rear wheel module 3, and the slewing support bearing 4 can rotate freely. The front wheel module 2 and the rear wheel module 3 are connected by two steering linkages. The lever 5 and an auxiliary steering link 6 form an X-shaped linkage mechanism and are hinged together. The tie rod 14 is installed at one end of the front wheel of the wet spraying machine frame 1. In order to ensure the flexibility and stability of steering, the two ends of the steering link 5 are respectively hinged to the front wheel module 2 and the rear wheel module 3 through the steering connector 12. One end of the auxiliary steering link 6 is hinged to the front wheel module 2 through the auxiliary connector 13, and the other end is hinged to one end of one of the steering links 5 through the auxiliary connector 13. The tie rod 14 is installed at one end of the front wheel of the wet spraying machine frame 1 to facilitate the user to push or pull the device and achieve the steering effect.

[0027] Example 2:

[0028] Based on Embodiment 1, the front wheel module 2 includes a front wheel 8 and a front wheel slewing bearing 9 disposed above the front wheel 8, and the rear wheel module 3 includes a rear wheel 10 and a rear wheel slewing bearing 11 disposed above the rear wheel 10. The front wheel slewing bearing 9 and the rear wheel slewing bearing 11 are respectively connected to the corresponding slewing support bearings 4. The wet spraying machine frame 1 has a rectangular structure to ensure that the required components can be installed on its top and to ensure the stability of the installation of each component. The slewing support bearing 4 and the connecting plate 7 are fixed by welding to enhance the reliability of the connection.

[0029] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0030] In this invention, the working steps of the device are as follows:

[0031] First, when turning is required, the front wheel module 2 is rotated. The front wheel module 2 drives the steering linkage 5 and the auxiliary steering linkage 6 to move through the steering connector 12. Due to the linkage effect of the X-shaped linkage mechanism, the rear wheel module 3 will rotate synchronously with the rotation of the front wheel module 2, thereby realizing the same trajectory movement of the front and rear wheels, eliminating the "inner wheel difference", reducing the turning radius, and enabling the wet spraying machine to turn flexibly in a narrow space.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shotcrete machine steering mechanism adaptable to operation in confined spaces, characterized in that, include: The wet spraying machine frame (1), front wheel module (2), rear wheel module (3), slewing support bearing (4), steering linkage (5), auxiliary steering linkage (6) and tie rod (14) are provided. Two connecting discs (7) are welded to the bottom of the wet spraying machine frame (1). The two connecting discs (7) are connected to the slewing support of the front wheel module (2) and the rear wheel module (3) respectively through the slewing support bearing (4), so that the wet spraying machine frame (1) is integrated with the front wheel module (2) and the rear wheel module (3). The slewing support bearing (4) can rotate freely. The front wheel module (2) and the rear wheel module (3) are hinged together by two steering linkages (5) and one auxiliary steering linkage (6) to form an X-shaped linkage mechanism. The tie rod (14) is installed at one end of the front wheel of the wet spraying machine frame (1).

2. The shotcrete machine steering mechanism adaptable to operation in confined spaces according to claim 1, characterized in that: The front wheel module (2) includes a front wheel (8) and a front wheel slewing bearing (9) disposed above the front wheel. The rear wheel module (3) includes a rear wheel (10) and a rear wheel slewing bearing (11) disposed above the rear wheel. The front wheel slewing bearing (9) and the rear wheel slewing bearing (11) are respectively connected to the corresponding slewing support bearing (4).

3. The shotcrete machine steering mechanism adaptable to operation in confined spaces according to claim 1, characterized in that: The two ends of the steering link (5) are respectively hinged to the front wheel module (2) and the rear wheel module (3) through the steering connector (12). One end of the auxiliary steering link (6) is hinged to the front wheel module (2) through the auxiliary connector (13), and the other end is hinged to one end of one of the steering links (5) through the auxiliary connector (13) to form a stable X-shaped linkage mechanism.

4. The shotcrete machine steering mechanism adaptable to operation in confined spaces according to claim 1, characterized in that: The wet spraying machine frame (1) has a rectangular structure, which ensures that the necessary components can be installed on its top and ensures the stability of the installation of each component.

5. A shotcrete machine steering mechanism adaptable to operation in confined spaces according to claim 1, characterized in that: The slewing support bearing (4) and the connecting disc (7) are fixed by welding to ensure the firmness of the connection.

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