Spraying device for two-component polyurea aerogel thermal insulation material

Abstract

The utility model relates to the technical field of tunnel heat damage prevention and spraying, and particularly discloses a double-component polyurea aerogel heat insulation material spraying device which comprises a movable supporting mechanism, a lifting assembly is arranged on the movable supporting mechanism, the movable supporting mechanism comprises a bottom plate, moving wheels are installed at the lower end of the bottom plate, a pushing handle is arranged on one side of the bottom plate, and the lifting assembly is arranged on the bottom plate. A top plate is arranged at the upper end of the lifting assembly, the spraying device further comprises a spraying mechanism arranged at the upper end of the top plate and used for conducting rotary spraying on the rock wall of the tunnel in the moving process, the spraying mechanism comprises two arc-shaped supporting frames oppositely arranged, through semi-arc-shaped sliding grooves are formed in the positions, close to the outer sides, of the arc-shaped supporting frames, and supporting rods are arranged on the semi-arc-shaped sliding grooves. Through the arrangement of the spraying mechanism, a power assembly drives a rotating shaft to intermittently rotate in a reciprocating mode, then a supporting rod on the rotating shaft integrally rotates in a semi-arc-shaped sliding groove, a spraying gun barrel rotates around the rotating shaft to spray bi-component polyurea aerogel mixed spraying liquid to the inner wall of a tunnel, and the spraying efficiency of the inner wall of the tunnel is improved; and the convenience of spraying construction is improved.

Description

Technical Field

[0001] This utility model relates to the field of spraying technology for preventing heat damage in high-temperature tunnels, and in particular to a spraying device for a two-component polyurea aerogel thermal insulation material. Background Technology

[0002] Deep-earth development is an inevitable trend for future human progress, but high geothermal temperatures are a serious geological hazard that accompanies it. High-temperature rock environments have a significant impact on construction and the operation of monitoring equipment. In high-temperature areas such as tunnels and mining faces in coal mines, it is necessary to spray thermal insulation materials onto the tunnel walls to prevent high geothermal radiation into the tunnel. This is a fundamental cooling measure, distinct from air conditioning, to ensure the smooth progress of tunnel construction in high-temperature environments. Currently, conventional mortar spraying machines are mainly used for spraying thermal insulation materials, resulting in high labor intensity, unreliable spray quality, and excessive consumption, causing problems and affecting efficiency. Furthermore, geothermal conductive and high-toughness materials formed from polyurea-mixed aerogels offer significant advantages in thermal insulation for tunnels with large deformations and multiple fractures, and new spraying equipment is urgently needed. Utility Model Content

[0003] The purpose of this invention is to provide a two-component polyurea aerogel thermal insulation material spraying device to solve the problem of spraying polyurea aerogel composite materials in high-temperature tunnels.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A two-component polyurea aerogel thermal insulation material spraying device includes a movable support mechanism with a lifting component. The movable support mechanism includes a base plate with a moving wheel installed at the lower end and a pusher on one side. The lifting component has a top plate at the upper end and a spraying mechanism installed at the upper end of the top plate for rotating and spraying the tunnel rock wall during movement. The spraying mechanism includes two arc-shaped support frames arranged opposite each other. A semi-arc-shaped groove is opened through the outer part of the arc-shaped support frame. A support rod is installed on the semi-arc-shaped groove, and a spray gun rod is installed at intervals on the support rod. A rotating component is provided on the arc-shaped support frame to move the support rod within the semi-arc-shaped groove. The rotating component includes a support seat fixed on the arc-shaped support frame, a rotating shaft on the support seat, a connecting rod fixed between the rotating shaft and the support rod, and a power component connected to one end of the rotating shaft to rotate the shaft.

[0006] Further configuration: The power assembly includes a gear fixed to the end of the rotating shaft, a reciprocating screw is provided on the lower side of the gear, a sliding seat is provided on the reciprocating screw, a rack is fixed on the upper end of the sliding seat, and a geared motor is connected to one end of the reciprocating screw.

[0007] Further settings: The reciprocating screw is set perpendicular to the rotating shaft, the reciprocating screw is threadedly connected to the sliding seat, and the sliding seat is slidably connected to the top plate.

[0008] Further configuration: The rack meshes with the gear, the length of the rack is less than the circumference of the gear, and the reciprocating screw pushes the sliding seat to move in one direction, just enough to make the support rod move one stroke within the semi-circular groove.

[0009] Further configuration: The support rod slides within a semi-circular groove on the arc-shaped support frame.

[0010] Further configuration: The pivot is rotatably connected to the support base.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] By setting up the spraying mechanism, the power unit drives the rotating shaft to rotate intermittently, which in turn causes the support rod on the rotating shaft to rotate as a whole within the semi-circular groove. This causes the spray gun rod to rotate around the rotating shaft and spray the spray liquid onto the inner wall of the tunnel, improving the efficiency of spraying the inner wall of the tunnel and the convenience of the work. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0014] Figure 1 This is a schematic diagram of the structure of a two-component polyurea aerogel thermal insulation material spraying device according to the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of a two-component polyurea aerogel thermal insulation material spraying device according to the present invention;

[0016] Figure 3 This is a schematic diagram of the spraying mechanism of the two-component polyurea aerogel thermal insulation material spraying device described in this utility model;

[0017] Figure 4 yes Figure 3 Front view structural diagram;

[0018] Figure 5 This is a schematic diagram of the rotating component of the two-component polyurea aerogel thermal insulation material spraying device described in this utility model.

[0019] The annotations in the attached figures are explained as follows:

[0020] 11. Base plate; 12. Lifting assembly; 13. Push handle; 14. Top plate; 21. Arc-shaped support frame; 201. Semi-arc-shaped slide rail; 22. Support seat; 23. Rotating shaft; 24. Support rod; 25. Gear; 26. Reciprocating lead screw; 27. Sliding seat; 28. Rack; 29. ​​Gear motor; 210. Spray gun rod. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. 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 indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] like Figures 1-5 As shown, a two-component polyurea aerogel thermal insulation material spraying device includes a movable support mechanism, on which a lifting component 12 is provided. The lifting component 12 is a commonly used scissor-type lifting mechanism, which will not be described in detail here. The movable support mechanism includes a base plate 11, with movable wheels installed at the lower end of the base plate 11 and a pusher 13 provided on one side of the base plate 11. A top plate 14 is provided at the upper end of the lifting component 12. It also includes a spraying mechanism provided at the upper end of the top plate 14 for rotating and spraying the rock wall of the tunnel during the movement.

[0025] In this embodiment: the spraying mechanism includes two arc-shaped support frames 21 arranged opposite each other. A through semi-arc-shaped groove 201 is opened on the outer part of the arc-shaped support frame 21. A support rod 24 is arranged on the semi-arc-shaped groove 201. Spray gun rods 210 are installed on the support rods 24 at intervals. The rear end of the spray gun rod 210 is connected to the spraying system. The spraying system is the existing polyurea spraying technology, which will not be described in detail here. The polyurea spraying liquid is made by mixing emulsion and aerogel. A rotating component is provided on the arc-shaped support frame 21 to move the support rod 24 in the semi-arc-shaped groove 201. The rotating component includes a support seat 22 fixed on the arc-shaped support frame 21. A rotating shaft 23 is provided on the support seat 22. A connecting rod is fixed between the rotating shaft 23 and the support rod 24. One end of the rotating shaft 23 is connected to a power component to rotate the rotating shaft 23. The support rod 24 slides in the semi-circular groove 201 on the arc-shaped support frame 21; the rotating shaft 23 is rotatably connected to the support seat 22, so that the arc-shaped support frame 21 provides limiting support for the support rod 24 and ensures the stability of operation.

[0026] The power assembly includes a gear 25 fixed to the end of the rotating shaft 23. A reciprocating screw 26 is provided below the gear 25, and a sliding seat 27 is provided on the reciprocating screw 26. A rack 28 is fixed to the upper end of the sliding seat 27. A geared motor 29 is connected to one end of the reciprocating screw 26. The reciprocating screw 26 is perpendicular to the rotating shaft 23 and is threadedly connected to the sliding seat 27. The sliding seat 27 is slidably connected to the top plate 14. The rack 28 meshes with the gear 25, and the length of the rack 28 is less than the circumference of the gear 25. The reciprocating screw 26 pushes the sliding seat 29... The one-way movement of the moving seat 27 just causes the support rod 24 to move one stroke within the semi-circular slide groove 201. The working of the reduction motor 29 drives the reciprocating screw 26 to rotate, which in turn pushes the sliding seat 27 and the rack 28 to move back and forth. When the rack 28 moves, it drives the gear 25 to mesh and rotate, which in turn drives the support rod 24 on the rotating shaft 23 to rotate as a whole within the semi-circular slide groove 201. This causes the spray gun rod 210 to rotate around the rotating shaft 23 and spray the polyurea aerogel mixture onto the inner wall of the tunnel.

[0027] The working principle and usage process of this utility model are as follows: The entire unit is moved to the middle position inside the tunnel. The spraying mechanism is raised to a certain height by the lifting component 12. The spraying system is turned on so that the spraying liquid is connected to the spray gun rod 210, and the entire unit is pushed to move along the tunnel. At the same time, the reciprocating screw 26 is driven to rotate by the reduction motor 29. The reciprocating screw 26 pushes the sliding seat 27 and the rack 28 to move back and forth. When the rack 28 moves, it drives the gear 25 to mesh and rotate. The gear 25 drives the support rod 24 on the rotating shaft 23 to rotate as a whole in the semi-arc slide groove 201. This causes the spray gun rod 210 to rotate around the rotating shaft 23 and spray the spraying liquid onto the inner wall of the tunnel, thereby improving the efficiency of spraying the inner wall of the tunnel.

[0028] 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 claimed utility model.

Claims

1. A two-component polyurea aerogel thermal insulation material spraying device, comprising a mobile support mechanism, a lifting assembly (12) is arranged on the mobile support mechanism, the mobile support mechanism comprises a bottom plate (11), mobile wheels are installed at the lower end of the bottom plate (11), a push handle (13) is arranged on one side of the bottom plate (11), and a top plate (14) is arranged at the upper end of the lifting assembly (12), characterized in that: Also include set in the top plate (14) upper end for in the process of moving the tunnel wall is rotated and sprayed spraying mechanism, the spraying mechanism includes two relative setting arc-shaped support frame (21), the arc-shaped support frame (21) is opened in the outer position with a through half-arc-shaped sliding groove (201), the half-arc-shaped sliding groove (201) is provided with a support rod (24), the support rod (24) is installed with spraying gun rod (210) at intervals, the arc-shaped support frame (21) is provided with a rotating assembly for moving the support rod (24) in the half-arc-shaped sliding groove (201), the rotating assembly includes a support seat (22) fixed on the arc-shaped support frame (21), the support seat (22) is provided with a rotating shaft (23), the rotating shaft (23) is fixed with a connecting rod between the support rod (24), one end of the rotating shaft (23) is connected with a power assembly for rotating the rotating shaft (23). ​ 2. The apparatus according to claim 1, wherein the apparatus is characterized by: The power assembly includes a gear (25) fixed on the end of the rotating shaft (23), the gear (25) is provided with a reciprocating screw (26) on the lower side, the reciprocating screw (26) is provided with a sliding seat (27), the sliding seat (27) is fixed with a rack (28) on the upper end, one end of the reciprocating screw (26) is connected with a speed reducer motor (29).

3. The apparatus according to claim 2, wherein the apparatus is characterized by: The reciprocating screw (26) is perpendicular to the rotating shaft (23), the reciprocating screw (26) is threadedly connected with the sliding seat (27), and the sliding seat (27) is slidably connected with the top plate (14).

4. The apparatus according to claim 2, wherein the apparatus is characterized by: The rack (28) is engaged with the gear (25), the length of the rack (28) is less than the circumference of the gear (25), and the one-way movement stroke of the reciprocating screw (26) pushing the sliding seat (27) is just to move the support rod (24) in the half-arc-shaped sliding groove (201) one-way.

5. The apparatus of claim 1, wherein: The support rod (24) slides in the half-arc-shaped sliding groove (201) of the arc-shaped support frame (21).

6. The apparatus of claim 1, wherein: The rotating shaft (23) is rotatably connected with the support seat (22).

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