Rod structure of lifting mechanism and arch trolley

Abstract

The utility model discloses a kind of rod body structure and arch frame trolley of lifting mechanism, including connecting rod main body and support rod body, connecting rod main body is configured as the structure that can be driven rotation, support rod body and connecting rod main body are set at predetermined angle, the contact surface of support rod body and arch frame is arc structure;Limiting strip is set on support rod body;Limiting strip protrudes the outer side of support rod body and is set at predetermined distance;Limiting strip is evenly spaced along the length direction of support rod body;The unfolding direction of folding arch frame is defined as outer side direction, the contraction direction of folding arch frame is defined as inner side direction, the limiting strip is set on the outer side direction of support rod body, the contact surface of support rod body and arch frame is set as arc structure in the scheme, compared with the support lifting mechanism of traditional straight edge structure, its frictional resistance when contact movement is smaller;Make it more smoothly in the process of unfolding and lifting operation to arch frame, and the contact damage to arch frame is smaller.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction equipment technology, and in particular to a lifting mechanism rod structure and an arch frame trolley. Background Technology

[0002] In tunnel support operations, arch support is often required. Existing arches are typically single-section arc-shaped structures or multi-section folded structures. When constructing a single-section arc-shaped arch, a transport mechanism is usually used to transport the arch to the designated location, and then an arch erection mechanism is used to erect the arch. However, for folded arch structures, there is currently no efficient machinery for construction. Transport mechanisms are usually used in conjunction with robotic arms. However, the movement path and angle of the transport mechanism in the tunnel are greatly limited, making it impossible to quickly erect folded arches, thus reducing the efficiency of erecting folded arches.

[0003] Alternatively, a lifting mechanism disclosed in application number 202321367706.2 can be used to lift and unfold the folding arch frame, and its combination is as follows: Figure 1 As described above, its structure assembled on the whole machine is as follows: Figure 2 As shown, its structural schematic diagram of the unfolded arch frame is as follows. Figure 3 As shown in the patent, the main supporting rod has a straight edge structure. When it lifts and slides the arch frame, it will have a large damping. At the same time, the limiting strip of the structure is too long. When it swings to the outside, the limiting strip may still catch the arch frame, causing the arch frame to slide forward and not move. Utility Model Content

[0004] The purpose of this utility model is to provide a lifting mechanism rod structure and arch frame trolley to address the above-mentioned shortcomings, thereby solving the problem of low efficiency in the erection of multi-segment folding arch frames in the prior art.

[0005] This utility model is achieved through the following solution: A lifting mechanism includes a connecting rod body and a support rod body. The connecting rod body is configured to be driven to rotate. The support rod body is set at a predetermined angle to the connecting rod body. The contact surface between the support rod body and the arch frame is an arc surface. A limit strip is provided on the support rod body. The limit strip protrudes from a portion of the side wall of the support rod body.

[0006] Based on the above-mentioned rod structure, the limiting strips are evenly spaced along the length of the supporting rod, and multiple limiting strips are located on the same side of the supporting rod.

[0007] Based on the above-mentioned rod structure, the direction of the folding arch frame closer to the tunnel wall is defined as the outer direction, and the direction of the folding arch frame away from the tunnel wall is defined as the inner direction. The limiting strip is set in the inner direction of the supporting rod.

[0008] Based on the above-mentioned rod structure, the support rod is a hollow cylindrical structure as a whole.

[0009] Based on the above-mentioned rod structure, the overall cross-section of the limiting strip is a semi-circular structure.

[0010] Based on the above-mentioned rod structure, the main body of the connecting rod is arranged perpendicularly to the supporting rod, and a reinforcing plate is also provided between the main body of the connecting rod and the supporting rod.

[0011] Based on the above-mentioned rod structure, the end of the reinforcing plate near the limiting strip has an arc-shaped structure.

[0012] Based on the above-mentioned rod structure, a reinforcing rod is provided at the end of the main connecting rod away from the reinforcing rod. The reinforcing rod is obliquely arranged between the supporting rod and the main connecting rod. One end of the reinforcing rod is connected to the side wall of the supporting rod, and the other end is connected to the side wall of the main connecting rod.

[0013] This solution also discloses an arch frame trolley, including a lifting mechanism and a platform. The lifting mechanism includes a rotating mechanism and a rod structure. The rotating mechanism is slidably mounted on the platform. The rod structure cooperates with the rotating mechanism to achieve rotation. The rod structures are arranged in pairs on both sides of the platform, and a limiting strip is located between the two rod structures.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this solution, the contact surface between the support rod and the arch frame is set as an arc-shaped structure. Compared with the traditional straight-edge support and lifting mechanism, its frictional resistance during contact movement is smaller. This makes the arch frame unfolding and lifting operations smoother and causes less contact damage to the arch frame, ensuring the stability of the arch frame structure. At the same time, when the arch frame is lifted to the designated height, the arc-shaped contact surface between the arch frame and the support rod makes it easier to pull the arch frame off the support rod.

[0015] 2. In this design, the rod structure rotates inward during lifting, which ensures that there is always relative movement between the arch frame and the support rod. The support rod structure is cylindrical, and its contact surface with the arch frame is an arc surface, which reduces the frictional resistance during relative movement compared to the previous straight-edge structure, making the arch frame slide forward very smoothly.

[0016] 3. In this design, there are spaced limiting strips along the length of the support rod. This provides space for the arch frame to slide and allows the arch frame to move within a predetermined range, ensuring safety during movement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the lifting mechanism in the prior art; Figure 2 This is a schematic diagram showing the overall installation position of the lifting mechanism in the prior art; Figure 3 This is a schematic diagram of the lifting mechanism unfolding the folding arch frame in the prior art; Figure 4 This is a schematic diagram of the overall structure of this utility model; Figure 5 This is a cross-sectional structural diagram of the support rod in this utility model; Figure 6 This is a schematic diagram of the structure of the limiting strip in contact with the arch frame in this utility model; Figure 7 This is a schematic diagram of the structure when the smooth surface of the support rod contacts the arch frame in this utility model; Reference numerals in the attached drawings: 1. Connecting rod body; 2. Support rod body; 3. Limiting strip; 4. Reinforcing plate; 5. Reinforcing rod; 6. Rotary flange. Detailed Implementation

[0018] All features disclosed in this specification, or steps in all methods or processes disclosed herein, may be combined in any way, except for mutually exclusive features and / or steps.

[0019] Any feature disclosed in this specification (including any appended claims and abstract) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a predetermined orientation, or be constructed and operated in a predetermined orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0022] Example 1 like Figures 4-7 As shown, this utility model provides a technical solution: A lifting mechanism includes a connecting rod body 1 and a support rod body 2. The connecting rod body 1 is configured to be driven to rotate. The support rod body 2 is set at a predetermined angle to the connecting rod body 1, and the contact surface between the support rod body 2 and the arch frame is an arc surface.

[0023] Based on the above structure, the contact surface between the support rod 2 and the arch frame is set as an arc-shaped structure in this solution. Compared with the traditional straight-edge support and lifting mechanism, its frictional resistance during contact movement is smaller. This makes it smoother in the process of unfolding and lifting the arch frame, and reduces contact damage to the arch frame, thus ensuring the stability of the arch frame structure.

[0024] As an example, a limit strip 3 is provided on the support rod 2; the limit strip 3 protrudes from the side wall of the support rod 2 by at least a predetermined distance.

[0025] Based on the above structure, the arch frame can be limited by the limiting strip 3 to ensure that the arch frame will not slide back and forth on the support rod 2, thus ensuring the stability of the folding arch frame movement.

[0026] As an example, the limiting strips 3 are evenly spaced along the length of the support rod, and multiple limiting strips are located on the same side of the support rod.

[0027] Based on the above structure, setting the limiting strip 3 to an intermittent state can provide movement space for the arch frame to slide, enabling the arch frame to move within a predetermined range and ensuring safety during the movement process.

[0028] As an example, the direction of the folding arch frame closer to the tunnel wall is defined as the outer direction, and the direction of the folding arch frame away from the tunnel wall is defined as the inner direction. The limiting strip 3 is set in the inner direction of the support rod 2.

[0029] Based on the above structure, the rod structure rotates inward when the arch frame is lifted, such as... Figure 6 As shown, to ensure the arch frame does not slide back and forth on the support rod 2, a limit strip 3 is required. Furthermore, the lateral limit strip 3 limits the arch frame throughout the entire rotation angle range of the support rod 2 during lifting. Therefore, the limit strip 3 needs to be positioned within the outer semicircular area of ​​the support rod 2. Simultaneously, after unfolding the folded arch frame, it needs to be supported by a rod structure. The folded arch frame is then dragged along the rod structure using a hoisting mechanism or other power components. Therefore, setting the end of the rod structure away from the limit strip as a smooth surface can make the entire dragging process smoother. Figure 7 As shown.

[0030] As an example, the support rod 2 is a hollow cylindrical structure, which can reduce the overall weight while ensuring the overall mechanical performance, thereby reducing the overall processing cost and improving the efficiency of the arch.

[0031] As an example, the overall cross-section of the limiting strip 3 can be a semi-circular structure, which can limit the arch frame during rotation. At the same time, setting the limiting strip 3 as a semi-circular structure in the outer direction can also reduce the overall manufacturing cost.

[0032] As an example, the connecting rod body 1 and the support rod body 2 can be set vertically. A reinforcing plate 4 can also be set between the connecting rod body 1 and the support rod body 2. By setting the reinforcing plate 4, the connection strength between the support rod body 2 and the connecting rod body 1 can be increased, ensuring the stress on the rod structure during the transportation and unfolding of the arch frame.

[0033] As an example, three reinforcing plates 4 are set between the connecting rod body 1 and the support rod body 2, and the end of the reinforcing plate 4 near the limiting strip 3 is an arc-shaped structure.

[0034] Based on the above structure, three reinforcing plates are set to increase the overall structural strength. At the same time, the end of the reinforcing plate 4 near the limiting strip 3 is set as an arc structure to avoid damage to the surface of the arch frame. Since the arch frame may be placed in the innermost position during the handover process, that is, the position in contact with the reinforcing plate 4, setting the reinforcing plate 4 as an arc structure can avoid damage to the arch frame.

[0035] As an example, a reinforcing rod 5 is provided at the end of the connecting rod body away from the reinforcing rod 5. The reinforcing rod 5 is obliquely arranged between the support rod body 2 and the connecting rod body 1. One end of the reinforcing rod 5 is connected to the side wall of the support rod body 2, and the other end is connected to the side wall of the connecting rod body 1.

[0036] Based on the above structure, since the pole structure needs to lift the arch frame, and the force is large when lifting multiple arch frames, it is necessary to set up a reinforcing pole 5 to strengthen the support and ensure the support strength.

[0037] As an example, a slewing flange 6 is provided at the end of the main connecting rod away from the supporting rod 2. The slewing flange 6 cooperates with an external rotating structure to achieve the rotation of the entire rod structure, and also cooperates with an external lifting mechanism to achieve lifting operations.

[0038] During lifting, the rod structure rotates outward, which means there is always relative movement between the arch frame and the support rod 2. In this design, the support rod 2 is set as a cylinder, and its contact surface with the arch frame is an arc surface, which reduces the frictional resistance during relative movement compared to the previous straight edge structure, making the arch frame slide forward very smoothly.

[0039] Example 2 Based on the structure of Embodiment 1 above, this embodiment provides an arch frame trolley, including a lifting mechanism and a platform. The lifting mechanism includes a rotating mechanism and a rod structure. The rotating mechanism is slidably mounted on the platform. The rod structure cooperates with the rotating mechanism to achieve rotation. The rod structures are arranged in pairs on both sides of the platform, and a limiting strip is located between the two rod structures.

[0040] Based on the above structure, the rotating mechanism drives the rod structure to move, and in conjunction with the lifting mechanism on the platform, it realizes the support and unfolding of the folding arch frame.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lever structure of a lifting mechanism, characterized by: It includes a connecting rod body (1) and a support rod body (2). The connecting rod body (1) is configured to be driven to rotate. The support rod body (2) is set at a predetermined angle to the connecting rod body (1). The contact surface between the support rod body (2) and the arch frame is an arc surface. A limit strip (3) is provided on the support rod body (2). The limit strip (3) is set on a part of the side wall of the support rod body (2).

2. A rod structure of a lifting mechanism according to claim 1, characterized in that: The limiting strips (3) are evenly spaced along the length of the support rod (2), and multiple limiting strips (3) are located on the same side of the support rod (2).

3. A rod structure of a lifting mechanism according to claim 1, characterized in that: The direction of the folding arch frame close to the tunnel wall is defined as the outer direction, and the direction of the folding arch frame away from the tunnel wall is defined as the inner direction. The limiting strip (3) is set in the inner direction of the support rod (2).

4. A rod structure of a lifting mechanism according to claim 1, characterized in that: The support rod (2) is a hollow cylindrical structure.

5. A rod structure of a lifting mechanism according to claim 1, characterized in that: The cross-section of the limiting strip (3) is a semi-circular structure.

6. A rod structure of a lifting mechanism according to claim 2 or 3, characterized in that: The connecting rod body (1) is arranged perpendicularly to the support rod body (2), and a reinforcing plate (4) is also provided between the connecting rod body (1) and the support rod body (2).

7. A rod structure for a lifting mechanism as claimed in claim 6, characterized in that: The end of the reinforcing plate (4) near the limiting strip (3) has an arc-shaped structure.

8. A rod structure of a lifting mechanism according to claim 2 or 3, characterized in that: A reinforcing rod (5) is provided at the end of the connecting rod body away from the reinforcing rod (5). The reinforcing rod (5) is obliquely arranged between the support rod body (2) and the connecting rod body (1). One end of the reinforcing rod (5) is connected to the side wall of the support rod body (2), and the other end is connected to the side wall of the connecting rod body (1).

9. A rod structure of a lifting mechanism according to claim 2 or 3, characterized in that: A slewing flange (6) is provided at the end of the connecting rod body away from the supporting rod body (2).

10. A centering trolley comprising a lifting mechanism and a carriage, characterized in that: The lifting mechanism includes a rotating mechanism and a rod structure as described in any one of claims 1 to 9. The rotating mechanism is slidably mounted on the platform, and the rod structure cooperates with the rotating mechanism to achieve rotation. The rod structures are arranged in pairs on both sides of the platform, and the limiting strip is located between the two rod structures.

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