Folding arm support with rotatable base

Abstract

The utility model discloses a folding arm support with a rotatable base, which relates to the technical field of tunnel and mining machinery equipment and comprises a main body unit, an angle adjusting unit arranged above the main body unit, a first pitching adjusting unit arranged above the angle adjusting unit and a second pitching adjusting unit arranged above the first pitching adjusting unit. The second pitching adjusting unit is arranged at the side part of the first pitching adjusting unit; and the angle adjusting unit comprises a gear disc movably mounted at the top of the main body unit, a U-shaped seat mounted at the top of the main body unit, and an angle adjusting piece arranged in the U-shaped seat. According to the folding arm support with the rotatable base, through the arrangement of the angle adjusting unit and the first pitching adjusting unit, the orientation of the main arm can be conveniently adjusted according to the construction condition of a tunnel.

Description

Technical Field

[0001] This utility model relates to the field of tunnel and mining machinery and equipment technology, and in particular to a folding boom with a rotatable base. Background Technology

[0002] During tunnel construction, arched supports made of I-beams or rebar are needed to support the newly excavated tunnel. Existing arch supports are typically constructed using an arch support machine, which clamps and installs a robotic arm at the end of the boom to grasp individual arch sections for a simulated manual construction process.

[0003] A search revealed in Publication No. CN215907883U disclosed a main boom and tunnel arch frame machine with a folding structure. The main boom includes a first connecting arm, a telescopic arm, a second connecting arm, a mounting platform, and a support platform. The first end of the first connecting arm is connected to the base of the arch frame machine, and the second end of the first connecting arm is hinged to the first end of the telescopic arm. A rotating seat is installed at the second end of the telescopic arm, and the first end of the second connecting arm is rotatably mounted on the rotating seat. The second end of the second connecting arm is connected to the mounting platform, and the support platform is rotatably mounted on the mounting platform. The first connecting arm can be stacked on the base of the arch frame machine, and the telescopic arm can be stacked on top of the first connecting arm. The telescopic arm can retract, and the second connecting arm can rotate to cause the mounting platform to be stacked on top of the telescopic arm. The support platform is rotated and stacked on the mounting platform, thereby completing the folding of the entire main boom, reducing its volume. In the folded state, the arch frame can still be installed on the support platform. The overall height is low, enabling passage through various height-restricted roads, reducing safety hazards, and improving safety.

[0004] While the above solution achieves the folding of the entire main boom, reducing its volume and overall height, and can pass through various height-restricted roads, thus reducing safety hazards and improving safety, it is inconvenient to conveniently adjust the orientation of the main boom according to the tunnel construction conditions. Therefore, we propose a folding boom with a rotatable base. Utility Model Content

[0005] The main purpose of this utility model is to provide a folding boom with a rotatable base, which solves the problem of inconvenient adjustment of the main boom orientation according to the tunnel construction conditions by setting an angle adjustment unit and a first pitch adjustment unit.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A folding boom with a rotatable base includes a main unit, an angle adjustment unit disposed above the main unit, a first pitch adjustment unit disposed above the angle adjustment unit, and a second pitch adjustment unit disposed on the side of the first pitch adjustment unit.

[0008] The angle adjustment unit includes a gear disk movably mounted on the top of the main unit, a U-shaped seat mounted on the top of the main unit, and an angle adjustment component disposed inside the U-shaped seat;

[0009] The first pitch adjustment unit includes a fixed base mounted on the top of the gear disk, a first support arm movably mounted on the top of the fixed base, and a first pitch cylinder movably mounted inside the fixed base with its telescopic end movably connected to the fixed base.

[0010] Preferably, the main body unit includes a mounting base and a mounting through hole formed on the top of the mounting base.

[0011] Preferably, the angle adjustment component includes a worm gear movably mounted inside the U-shaped seat and a drive motor mounted on the input end of the worm gear.

[0012] Preferably, the second pitch adjustment unit includes a second arm movably mounted on the side wall of the first arm, and a pitch adjustment member disposed between the first arm and the second arm.

[0013] Preferably, the pitch adjustment component includes a C-shaped seat movably mounted on the side wall of the first outrigger, a support seat mounted on the bottom of the second outrigger, and a second pitch cylinder movably mounted inside the C-shaped seat with its telescopic end movably connected to the support seat.

[0014] Preferably, the second pitch adjustment unit further includes a transmission connector installed at the output end of the second outrigger.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In this invention, by setting an angle adjustment unit and a first pitch adjustment unit, when it is necessary to adjust the orientation of the main boom according to the tunnel construction conditions, the drive motor drives the worm gear to rotate, which in turn drives the gear disc to rotate, thereby causing the fixed seat to drive the first arm to rotate until the second arm faces the construction direction and stops. This achieves convenient adjustment of the main boom orientation according to the tunnel construction conditions. When it is necessary to adjust the extension length of the main boom, the extension end of the first pitch cylinder extends and retracts, causing the first arm to rotate around the fixed seat, and the extension end of the second pitch cylinder extends and retracts, causing the second arm to rotate around the first arm. This achieves convenient adjustment of the extension length of the main boom. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 3 This is a top view schematic diagram of the structure of this utility model.

[0020] Figure 4 This utility model Figure 3 Schematic diagram of the cross-sectional structure at point AA;

[0021] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the I-structure.

[0022] In the picture:

[0023] 1. Main unit; 101. Mounting base; 102. Mounting through hole;

[0024] 2. Angle adjustment unit; 201. Gear disk; 202. U-shaped seat; 203. Angle adjustment component; 2031. Worm gear; 2032. Drive motor;

[0025] 3. First pitch adjustment unit; 301. Fixed base; 302. First support arm; 303. First pitch cylinder;

[0026] 4. Second pitch adjustment unit; 401. Second support arm; 402. Pitch adjustment component; 4021. C-shaped base; 4022. Support base; 4023. Second pitch cylinder; 403. Transmission connecting component. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments. Example 1

[0028] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, a folding arm with a rotatable base includes a main body unit 1, an angle adjustment unit 2 disposed above the main body unit 1, a first pitch adjustment unit 3 disposed above the angle adjustment unit 2, and a second pitch adjustment unit 4 disposed on the side of the first pitch adjustment unit 3.

[0029] like Figure 4 As shown, the angle adjustment unit 2 includes a gear disk 201 movably mounted on the top of the main body unit 1, a U-shaped seat 202 mounted on the top of the main body unit 1, and an angle adjustment component 203 disposed inside the U-shaped seat 202. The angle adjustment component 203 can perform worm gear transmission on the gear disk 201.

[0030] like Figure 2As shown, the first pitch adjustment unit 3 includes a fixed base 301 mounted on the top of the gear disk 201, a first support arm 302 movably mounted on the top of the fixed base 301, and a first pitch cylinder 303 movably mounted inside the fixed base 301 and whose telescopic end is movably connected to the fixed base 301. When the telescopic end of the first pitch cylinder 303 extends or retracts, the first support arm 302 can rotate around the fixed base 301.

[0031] like Figure 1 As shown, the main unit 1 includes a mounting base 101 and a mounting through hole 102 opened on the top of the mounting base 101. The mounting through hole 102 facilitates the rapid installation of the entire boom onto the tunnel construction machinery.

[0032] like Figure 3 As shown, the angle adjustment component 203 includes a worm gear 2031 movably installed inside the U-shaped seat 202, and a drive motor 2032 installed at the input end of the worm gear 2031. When the drive motor 2032 drives the worm gear 2031 to rotate, it can perform worm gear transmission on the gear disk 201.

[0033] like Figure 2 As shown, the second pitch adjustment unit 4 includes a second arm 401 movably mounted on the side wall of the first arm 302, and a pitch adjustment member 402 disposed between the first arm 302 and the second arm 401. The pitch adjustment member 402 can change the angle between the second arm 401 and the first arm 302.

[0034] like Figure 2 As shown, the second pitch adjustment unit 4 also includes a transmission connector 403 installed at the output end of the second support arm 401. The transmission connector 403 facilitates the quick connection and installation of the tunnel construction output component.

[0035] When the orientation of the main boom needs to be adjusted according to the tunnel construction situation, the drive motor 2032 drives the worm gear 2031 to rotate, which in turn drives the gear disk 201 to rotate. This causes the fixed base 301 to drive the first arm 302 to rotate until the second arm 401 faces the construction direction and then stops. This allows for convenient adjustment of the main boom orientation according to the tunnel construction situation. Example 2

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5As shown, a folding arm with a rotatable base includes a main body unit 1, an angle adjustment unit 2 disposed above the main body unit 1, a first pitch adjustment unit 3 disposed above the angle adjustment unit 2, and a second pitch adjustment unit 4 disposed on the side of the first pitch adjustment unit 3.

[0037] like Figure 4 As shown, the angle adjustment unit 2 includes a gear disk 201 movably mounted on the top of the main body unit 1, a U-shaped seat 202 mounted on the top of the main body unit 1, and an angle adjustment component 203 disposed inside the U-shaped seat 202. The angle adjustment component 203 can perform worm gear transmission on the gear disk 201.

[0038] like Figure 2 As shown, the first pitch adjustment unit 3 includes a fixed base 301 mounted on the top of the gear disk 201, a first support arm 302 movably mounted on the top of the fixed base 301, and a first pitch cylinder 303 movably mounted inside the fixed base 301 and whose telescopic end is movably connected to the fixed base 301. When the telescopic end of the first pitch cylinder 303 extends or retracts, the first support arm 302 can rotate around the fixed base 301.

[0039] like Figure 1 As shown, the main unit 1 includes a mounting base 101 and a mounting through hole 102 opened on the top of the mounting base 101. The mounting through hole 102 facilitates the rapid installation of the entire boom onto the tunnel construction machinery.

[0040] like Figure 3 As shown, the angle adjustment component 203 includes a worm gear 2031 movably installed inside the U-shaped seat 202, and a drive motor 2032 installed at the input end of the worm gear 2031. When the drive motor 2032 drives the worm gear 2031 to rotate, it can perform worm gear transmission on the gear disk 201.

[0041] like Figure 2 As shown, the second pitch adjustment unit 4 includes a second arm 401 movably mounted on the side wall of the first arm 302, and a pitch adjustment member 402 disposed between the first arm 302 and the second arm 401. The pitch adjustment member 402 can change the angle between the second arm 401 and the first arm 302.

[0042] like Figure 5 As shown, the pitch adjustment component 402 includes a U-shaped seat 4021 movably installed on the side wall of the first support arm 302, a support seat 4022 installed at the bottom of the second support arm 401, and a second pitch cylinder 4023 movably installed inside the U-shaped seat 4021 and whose telescopic end is movably connected to the support seat 4022. When the second pitch cylinder 4023 extends or retracts, the second support arm 401 can be rotated and adjusted around the first support arm 302 through the support seat 4022.

[0043] like Figure 2 As shown, the second pitch adjustment unit 4 also includes a transmission connector 403 installed at the output end of the second support arm 401. The transmission connector 403 facilitates the quick connection and installation of the tunnel construction output component.

[0044] When it is necessary to adjust the extension length of the main boom, the extension end of the first pitch cylinder 303 extends and retracts, causing the first arm 302 to rotate around the fixed base 301, and the extension end of the second pitch cylinder 4023 extends and retracts, causing the second arm 401 to rotate around the first arm 302, thereby realizing convenient adjustment of the extension length of the main boom.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A folding boom with a rotatable base, comprising a main body unit (1), characterized in that, It also includes an angle adjustment unit (2) disposed above the main body unit (1), a first pitch adjustment unit (3) disposed above the angle adjustment unit (2), and a second pitch adjustment unit (4) disposed on the side of the first pitch adjustment unit (3); The angle adjustment unit (2) includes a gear disk (201) movably mounted on the top of the main body unit (1), a U-shaped seat (202) mounted on the top of the main body unit (1), and an angle adjustment component (203) disposed inside the U-shaped seat (202). The first pitch adjustment unit (3) includes a fixed seat (301) mounted on the top of the gear disk (201), a first support arm (302) movably mounted on the top of the fixed seat (301), and a first pitch cylinder (303) movably mounted inside the fixed seat (301) and whose telescopic end is movably connected to the fixed seat (301).

2. A folding arm with a rotatable base according to claim 1, characterized in that: The main body unit (1) includes a mounting base (101) and a mounting through hole (102) formed on the top of the mounting base (101).

3. A folding arm with a rotatable base according to claim 2, characterized in that: The angle adjustment component (203) includes a worm gear (2031) movably mounted inside the U-shaped seat (202) and a drive motor (2032) mounted on the input end of the worm gear (2031).

4. A base-rotatable folding jib as defined in claim 1 wherein: The second pitch adjustment unit (4) includes a second arm (401) movably mounted on the side wall of the first arm (302), and a pitch adjustment member (402) disposed between the first arm (302) and the second arm (401).

5. A folding arm with a rotatable base according to claim 4, characterized in that: The pitch adjustment component (402) includes a C-shaped seat (4021) movably installed on the side wall of the first support arm (302), a support seat (4022) installed at the bottom of the second support arm (401), and a second pitch cylinder (4023) movably installed inside the C-shaped seat (4021) and whose telescopic end is movably connected to the support seat (4022).

6. A folding arm with a rotatable base according to claim 5, characterized in that: The second pitch adjustment unit (4) also includes a transmission connector (403) installed at the output end of the second support arm (401).

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