Hopper structure for wet spraying machine device

Abstract

The utility model discloses a hopper structure for a wet spraying machine device, which comprises a hopper, a grating net is arranged in the hopper, the grating net is connected to a step arranged in the hopper through springs at four corners, the cross section of the side wall of each mesh of the grating net is an isosceles triangle, each grating hole formed by the side wall of each mesh is a trapezoidal cross section in the longitudinal and transverse directions, and the cross section of each grating hole is a trapezoidal cross section. A pneumatic vibration pump is fixedly connected to the door-shaped frame, and it is ensured that the pneumatic vibration pump is higher than the top face of the hopper. According to the device, the mesh side wall of a blade structure is adopted, and under the condition that vibration is matched, added concrete can easily fall from the grating net to a stirring and feeding mechanism below, the situation that falling of the concrete is affected and the concrete is difficult to clean due to the fact that the concrete adheres to the grating net after long-term operation and use is avoided, and cleaning is more time-saving and labor-saving.

Description

Technical Field

[0001] The utility model belongs to the technical field of wet spraying machine devices, and particularly relates to a hopper structure used for wet spraying machine devices. Background Art

[0002] A wet shotcrete machine is a type of concrete spraying equipment primarily used for shotcrete construction in underground projects such as tunnels, culverts, subways, and foundation pit support. The machine uses a hydraulic pump to deliver the concrete mix through a pipe to the nozzle.

[0003] The existing wet spraying machine hopper structure is equipped with a grid mesh with square holes made of round steel bars. Due to long-term use, concrete is easily deposited on the grid mesh, which is difficult to clean and not easy to fall off under vibration, thus affecting the spraying operation. Utility Model Content

[0004] The purpose of the utility model is to provide a hopper structure for a wet spraying machine device, so as to solve the problem that concrete in the existing hopper is not easy to fall off and is difficult to clean.

[0005] The technical solution adopted by the utility model is a hopper structure for a wet spraying machine device, comprising a hopper, a grille net is arranged in the hopper, the grille net is connected to a step arranged in the hopper through springs at four corners, the mesh side wall cross-section of the grille net is an isosceles triangle, each grille hole formed by the mesh side wall has a trapezoidal cross-section in the vertical and horizontal directions, a gate frame is arranged on the grille net, a pneumatic vibration pump is fixedly connected to the gate frame, and the height of the pneumatic vibration pump is ensured to be higher than the top surface of the hopper.

[0006] Furthermore, the above-mentioned pneumatic vibration pump is provided with a protective layer on the outside. The protective layer is a barrel-shaped structure. After covering the pneumatic vibration pump, the bottom is fixedly connected to the door frame. The protective layer includes a waterproof layer, a sponge layer and a thermal insulation layer arranged from the outside to the inside. Two through holes for installing the air inlet pipe and the air outlet pipe of the pneumatic vibration pump are provided on the top of the protective layer. The two through holes are embedded with a waterproof sleeve. The waterproof sleeve is provided with an annular groove. The annular groove is sealed and connected to the protective layer. The inner hole of the annular groove is provided with multiple sealing rings.

[0007] Furthermore, a shielding rubber is fixed on the outside of the hopper side wall, and the shielding rubber covers the air pressure distribution valve fixedly installed on the outside of the hopper side wall.

[0008] Furthermore, pedals are provided on the outer bottom sides of the front and rear sides of the hopper, and a shielding rubber is also provided on the bottom of the hopper facing the mixing tank. The shielding rubber covers the output pipe. The shielding rubber is fixed to the hopper by a clamping mechanism. The clamping mechanism includes a T-shaped slide rail and a T-shaped slot tube used in conjunction with the T-shaped slide rail. The upper end of the shielding rubber is elastically squeezed in the gap between the T-shaped slide rail and the T-shaped slot tube.

[0009] Furthermore, two handles are provided on the grille net, and a downwardly inclined high-pressure air jet is provided around the spring.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1) This application uses a knife-edge mesh side wall, and in conjunction with vibration, it is very easy to achieve the added concrete falling from the grid mesh to the mixing and feeding mechanism below, avoiding the concrete sticking to the grid mesh after long-term operation and affecting the falling and difficult cleaning, making cleaning more time-saving and labor-saving;

[0012] 2) A door frame is installed inside the hopper to suspend the pneumatic vibration pump above the hopper to prevent the moisture in the concrete in the hopper from affecting the pneumatic vibration pump. The pneumatic vibration pump is used to prevent the electromagnetic vibration pump from being easily damaged in a humid environment;

[0013] 3) The pneumatic vibration pump is covered with a protective layer, which can effectively protect it from damage. The three-layer structure of waterproof, sponge and heat preservation can provide waterproof, elastic protection and isolate the outside temperature from being too high. The setting of the waterproof cover facilitates the sealing insertion of the air inlet and outlet pipes.

[0014] 4) Setting up a shielding rubber can prevent concrete from splashing and falling onto the air pressure distribution valve, causing the pressure distribution valve to be damaged by solidified cement mortar in the long term. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front structural diagram of an integrated wet spraying machine device;

[0016] Figure 2 Schematic diagram of the cross-section structure of the hopper;

[0017] Figure 3 This is a schematic diagram of the protective cover perforation installation structure;

[0018] Figure 4 Schematic diagram of the hopper structure;

[0019] Figure 5 for Figure 4 A schematic diagram of the enlarged structure of the middle part A;

[0020] Figure 6 This is a schematic diagram of the mounting structure (with dimensions);

[0021] Figure 7 It is a schematic diagram of the connection structure between the U-shaped card and the round tube;

[0022] Figure 8 This is a schematic diagram of the structure of the jet walking trolley;

[0023] Figure 9 It is a side view structural diagram of the anti-rotation device. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] like Figure 2-5 As shown, a hopper structure for a wet spraying machine device includes a hopper 201, a grille 202 is provided in the hopper 201, the grille 202 is connected to a step 204 provided in the hopper 201 through springs 203 at the four corners, a door frame 205 is provided on the grille 202, a pneumatic vibration pump 206 is fixedly connected to the door frame 205, and the height ensures that the pneumatic vibration pump 206 is higher than the top surface of the hopper 201, the mesh side wall cross-section of the grille 202 is an isosceles triangle, and each grille hole formed by the mesh side wall has a trapezoidal cross-section in the vertical and horizontal directions; the use of the grille on the hopper can break up the concrete fed into the mixing tank and evenly feed it into the mixing and feeding mechanism on the lower side, thereby improving the spraying quality of the concrete and facilitating the filtering of oversized particles to avoid entering the spraying mechanism and damaging the equipment; a door frame is provided in the hopper to suspend the pneumatic vibration pump above the hopper to avoid moisture in the concrete in the hopper Affecting the pneumatic vibration pump, a pneumatic vibration pump is used to avoid the electromagnetic vibration pump being easily damaged in a humid environment. The conventional grille mesh adopts a square hole structure composed of round rod steel bars. Due to long-term use, it is very easy to produce concrete on the grille mesh, which is not easy to clean and not easy to fall off under vibration. The present application adopts a mesh side wall with a blade structure, and in combination with vibration, it is very easy to achieve the added concrete falling from the grille mesh to the mixing and feeding mechanism below, avoiding the concrete sticking to the grille mesh after long-term operation and affecting the falling of concrete and being difficult to clean. Cleaning is more time-saving and labor-saving. Two handles are provided on the grille mesh to facilitate the disassembly of the grille mesh. A downward-inclined high-pressure jet port is provided around the spring 203, which can timely blow off the mortar produced on the spring to avoid affecting the vibration reduction performance of the spring. Under the condition of blowing and vibration, the mortar is less likely to stick to the spring and is easier to clean.

[0027] In order to protect the pneumatic vibration pump, a protective layer 207 is provided on the outside of the pneumatic vibration pump 206. The protective layer 207 is a barrel-shaped structure. After covering the pneumatic vibration pump 206, the bottom is fixedly connected to the door frame 205. The protective layer 207 includes a waterproof layer 208, a sponge layer 209 and a thermal insulation layer 210 arranged from the outside to the inside. Two through holes 211 for installing the air inlet pipe and the air outlet pipe of the pneumatic vibration pump 206 are provided on the top of the protective layer 207. The two through holes 211 are embedded with a waterproof sleeve 212. The waterproof sleeve 212 is provided with an annular groove 213. The annular groove 213 is sealed and connected to the protective layer 207. The inner hole of the annular groove 213 is provided with multiple sealing rings 214. The use of a protective layer to cover the pneumatic vibration pump can effectively protect it from damage. The three-layer structure of waterproof, sponge and thermal insulation can provide waterproof, elastic protection and isolation from excessively high external temperatures. The provision of the waterproof sleeve facilitates the sealed insertion of the air inlet pipe and the air outlet pipe.

[0028] In order to protect the air pressure distribution valve 216, a shielding rubber 215 is fixed on the side wall of the hopper 201, and the shielding rubber 215 covers the air pressure distribution valve 216 fixed on the side wall of the hopper 201; the shielding rubber can prevent concrete from splashing and falling onto the air pressure distribution valve, causing the pressure distribution valve to be damaged for a long time due to solidified cement mortar. Pedals are provided on the bottom of the front and rear sides of the hopper 201. Standing on the pedals makes it convenient to perform feeding operations. A shielding rubber 215 is also provided on the bottom of the hopper facing the mixing tank, covering the bottom of the hopper 201. The output pipe plays a protective role to prevent excessive mortar from falling on the output pipe and making it inconvenient to clean. The shielding rubber 215 is fixed to the hopper with a clamping mechanism. The clamping mechanism includes a T-shaped slide rail 217 and a T-shaped slot tube 218 used in conjunction with the T-shaped slide rail 217. The upper end of the shielding rubber 215 is elastically squeezed into the gap between the T-shaped slide rail 217 and the T-shaped slot tube 218. When in use, the shielding rubber is placed on the T-shaped slide rail, and the T-shaped slot tube is pushed in from one end of the T-shaped slide rail to lock the shielding rubber. It is easy to assemble and disassemble, and cleaning is convenient and quick.

[0029] Example 2

[0030] like Figure 1As shown, an integrated wet spraying machine device includes a traveling mechanism 1, a wet spraying machine 2 and an air compressor 3. The wet spraying machine 2 and the air compressor 3 are respectively mounted on the right and left ends of the traveling mechanism 1. A hanging structure 4 for hanging a traveling vehicle is installed on the left end of the traveling mechanism 1. It also includes a cable reel 5 and a power supply box 6 installed on the traveling mechanism. The cable reel 5 is located in front of the gas tank 7, and the power supply box 6 is located on the right side of the cable reel 5. The cable reel 5 is installed on the traveling mechanism 1 through a winding rack, and the winding rack is connected to the cable reel 5 through a rotating shaft. The rotating shaft is connected to an electric motor, and the electric motor is installed on the rear side of the winding rack. The power supply box 6 connects the power supply cable on the cable reel to its power inlet port, and the power supply cable is connected to the power output port of the diesel generator. It also includes an air tank 7 fixedly connected to the traveling mechanism through two supporting frames, and the air outlet of the air compressor 3 is connected to the air tank 7. The air tank 7 is connected to the air inlet end of the wet spraying machine 2. The mortar pushed out by the wet spraying machine is pneumatically sprayed through the air inlet end, and then the mortar is sprayed onto the wall for bonding.

[0031] The left wheel frame 103 is connected to the left wheel frame 104 by a U-bolt, and the left wheel frame 103 is connected to the left wheel frame 104 by a U-bolt.

[0032] Among them, such as Figure 6As shown, the hanging structure 4 includes a hanging joint 401 and an isosceles tripod 402. The hanging joint 401 is installed at one corner of the tripod 402. The other two corners of the tripod 402 are respectively hinged on two hinged ears 403 through a connecting single ear 413 perpendicular to the right side of the tripod (i.e. horizontally to the right). The hinged ear is wide, and the right side is also connected to one end of the stacked strip shock-absorbing spring, which can simplify the left wheel frame structure. The two hinged ears 403 are fixedly connected to the left side of the left wheel frame 103. The tripod 402 includes a left top triangular plate frame 404 and a hinged ear 405. Two pairs of side steel bars 406 are welded to the two right corners of the left top triangular plate frame 404. Each pair of side steel bars 406 is arranged up and down at each corner of the left top triangular plate frame 404. Each pair of side steel bars 406 A hinged ear 405 is welded on the right end, and multiple transverse steel bars 407 are welded between the two pairs of side steel bars 406 to form an isosceles trapezoidal structure. The two ends of each transverse steel bar 407 are located between each pair of side steel bars 406 and are fixedly connected at the same time. Multiple vertical bars 408 are welded on the outside between each pair of side steel bars 406. The hanging structure of the hanging joint and the isosceles tripod is adopted. The frame structure is light in weight, convenient for hanging, high in rigidity and strength, and good in hanging reliability. The isosceles trapezoidal structure transition connection frame composed of side steel bars, transverse steel bars and longitudinal steel bars can be welded with on-site scrap steel bars, which is convenient for welding and low in cost. In addition, the frame structure is light in weight, convenient for hanging, high in rigidity and strength, and good in stability. The left top triangle frame and hinged ear.

[0033] In order to facilitate hanging on the trailer, the hanging joint 401 includes a hanging tube 409 and a lifting ear screw 410. The hanging tube 409 is welded to the top of the connecting rod 411. The lifting ear screw 410 is spirally connected to the connecting ear 411 at the bottom of the connecting rod 405 and is locked with a nut 412. The connecting rod 405 is fixedly connected to the left top corner of the left top triangular plate frame 404. The hanging tube is used to set the connecting rod on the rear side of the cart. After the connecting rod is inserted into the hanging tube, a pin is used to pass through the hanging tube and the connecting rod and then locked. It is convenient to connect and easy to assemble and disassemble. The lifting ear screw is used for hanging, which is convenient to hang.

[0034] In order to facilitate the stable transportation of the entire equipment, such as Figure 7-9As shown, a transport fixing structure is installed on the walking mechanism 1, and the transport fixing structure includes a U-shaped card 801 and a round tube 802. The U-shaped card 801 is fixedly connected to the bottom of the mounting plate 101 in an inverted manner, and the round tube 802 is rotatably connected to the U-shaped card 801. One end of the round tube 802 is locked by an anti-rotation device after extending out of the U-shaped card 801. The U-shaped card 801 and the round tube 802 are used in multiple pairs, which are respectively arranged on the front and back sides of the bottom of the mounting plate 101. It also includes a binding rope 803 and a hanging hole 804 on the transport cart. The hanging hole 804 is arranged in two rows, and the binding rope 803 uses two The single side is staggered up and down through the space between the round tube 802 and the U-shaped card 801 and the hanging hole 804 to lock the walking mechanism on the transport cart. Triangular clips 805 are set on both sides of the bottom of the walking wheel 102. The transportation fixing structure composed of the U-shaped clip, round tube, binding rope, hanging hole and triangular clip is set to firmly connect the walking mechanism to the transport cart to avoid shaking during transportation. The rotatable round tube can act as a pulley during the binding process, making it easier for the binding rope to slide through and make the binding tighter. After binding, the anti-rotation mechanism is used to lock it, which can further improve the binding stability. The anti-rotation device includes a ratchet 806 and a pawl 807. The ratchet 806 is fixedly connected to the left end of the circular tube 802. The pawl 807 used in conjunction with the ratchet 806 is rotatably connected to the U-shaped card 801 and the pawl 807 can overlap the ratchet teeth of the ratchet 806. It is loosened when used for bundling. The circular tube 802 is located in the U-shaped card 801 and a limiting plate 808 is provided on both sides on both sides to facilitate limiting and preventing slippage. The limiting plate 808 is fixedly connected to the circular tube 802 by welding. A through hole 809 is radially provided at the right end of the circular tube 802 to facilitate insertion of the steel pipe for rotation, and it is also convenient to wrap the binding rope around the circular tube and then insert it into the through hole for fixing. The circular tube is rotated to play the role of a winding drum, and cooperates with the anti-rotation device to realize the fixation of a binding rope between the corresponding hanging holes of the single-sided circular tube.

[0035] Example 3

[0036] An operating method of an integrated wet spraying machine device, the method comprising the following steps:

[0037] (1) Start the machine: Start the wet spraying machine and perform equipment self-test;

[0038] (2) Material supply: Check the supply of concrete and confirm that the concrete mix ratio and supply quantity meet the requirements;

[0039] (3) Air supply: Open the air valve of the wet spraying machine to ensure that the air path is unobstructed, which is conducive to the adhesion of the sprayed concrete;

[0040] (4) Spraying: Adjust the spraying parameters of the wet spraying machine as needed. The spraying parameters include spraying distance, spraying angle and spraying pressure. Then, start the spraying operation. During the spraying process, always observe the spraying situation and adjust the parameters in time to ensure that the spraying effect meets the requirements. The machine is equipped with an intelligent operating system and can be adjusted according to the actual needs of the site. The equipped pressure gauge can display the pressure in real time, which is convenient for adjustment and control.

[0041] During the spraying process, a spraying walking trolley is used for spraying, such as Figure 8 As shown, the jet walking trolley includes a jet head 901 and an electric walking mechanism trolley 902. The jet head 901 is installed on an electric pitch head 903. The electric pitch head 903 is connected to the electric walking mechanism trolley 902 through a support frame 904. A three-dimensional laser scanner 905 is installed on the electric walking mechanism trolley 902. The three-dimensional laser scanner 905 is used to scan the wall surface and construct a three-dimensional model of the wall surface. Two infrared distance sensors 906 that follow the pitch are set on both sides of the jet head 901. The two infrared distance sensors 906 respectively measure the wall surface conditions before and after the jetting. The jet head 901 is installed through The soft hose 907 is connected to the output pipe of the wet spraying machine 2, the three-dimensional laser scanner 905 is connected to the controller of the wet spraying machine, the controller is connected to the electric walking mechanism trolley, the infrared distance sensor and the electric pitch head, and the three-dimensional laser scanner is used to build a model based on the scanning results after cruise control, and spraying is carried out according to the model, and pitch control is performed. During the walking process, pitch spraying is performed on the wall surface, and the infrared distance sensor is used to detect the spraying thickness in real time, so as to make timely remedial measures, improve the uniformity of the surface spraying thickness, and avoid unevenness when the spraying parameter control cannot achieve accurate spraying.

[0042] (5) Stopping the material: When the concrete supply is finished or no longer needs to be sprayed, turn off the concrete supply system and keep the air valve open to allow the wet spraying machine to continue running for the set time so that the concrete in the pipeline can be completely sprayed out;

[0043] (6) Shutdown: Turn off the wet spraying machine and clean and maintain the equipment. Before shutting down, stop the spraying operation and ensure that the concrete in the pipe is completely sprayed out. After shutting down the wet spraying machine, check whether all parts of the equipment are normal and perform maintenance in time to ensure the normal use and life of the equipment.

[0044] The sequential operation process and specific spraying parameter control of shotcrete can effectively ensure the quality of shotcrete, and allow the wet shotcrete machine to continue operating after the spraying is completed without closing the air valve to facilitate complete spraying of the concrete in the pipe.

[0045] The above-described embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications and improvements made by those skilled in the art to the technical solution of the present invention without departing from the spirit and principles of the present invention shall fall within the scope of protection defined by the claims of the present invention.

Claims

1. A hopper structure for a wet spraying machine device, characterized in that: The invention comprises a hopper (201), a grid net (202) connected to a step (204) provided in the hopper (201) via springs (203) at four corners, the mesh side wall cross-section of the grid net (202) being an isosceles triangle, and each grid hole formed by the mesh side wall having a trapezoidal cross-section in both the longitudinal and transverse directions, a gate frame (205) being provided on the grid net (202), and a pneumatic vibration pump (206) being fixedly connected to the gate frame (205) and the height of the pneumatic vibration pump (206) ensuring that the pneumatic vibration pump (206) is higher than the top surface of the hopper (201).

2. A hopper structure for a wet spraying machine according to claim 1, characterized in that: A protective layer (207) is provided on the outside of the pneumatic vibration pump (206). The protective layer (207) is a barrel-shaped structure. After covering the pneumatic vibration pump (206), the bottom is fixedly connected to the door frame (205). The protective layer (207) includes a waterproof layer (208), a sponge layer (209) and a thermal insulation layer (210) arranged from the outside to the inside. Two through holes (211) for installing an air inlet pipe and an air outlet pipe of the pneumatic vibration pump (206) are provided on the top of the protective layer (207). The two through holes (211) are embedded with a waterproof sleeve (212). The waterproof sleeve (212) is provided with an annular groove (213). The annular groove (213) is sealed and connected to the protective layer (207). The inner hole of the annular groove (213) is provided with multiple sealing rings (214).

3. A hopper structure for a wet spraying machine according to claim 2, characterized in that: A shielding rubber (215) is fixed on the outside of the side wall of the hopper (201), and the shielding rubber (215) covers the air pressure distribution valve (216) fixedly installed on the outside of the side wall of the hopper (201).

4. A hopper structure for a wet spraying machine according to claim 3, characterized in that: Pedals are provided on the outer bottom sides of the front and rear sides of the hopper (201), and a shielding rubber (215) is also provided on the bottom of the side of the hopper facing the mixing tank. The shielding rubber covers the output pipe. The shielding rubber (215) is fixed to the hopper by a clamping mechanism. The clamping mechanism includes a T-shaped slide rail (217) and a T-shaped slot tube (218) used in conjunction with the T-shaped slide rail (217). The upper end of the shielding rubber (215) is elastically squeezed into the gap between the T-shaped slide rail (217) and the T-shaped slot tube (218).

5. The hopper structure for a wet spraying machine according to claim 1, characterized in that: Two handles are provided on the grid net (202), and a downwardly inclined high-pressure air jet is provided around the spring (203).

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