An explosion-proof fully hydraulic sweeper for underground mines

Abstract

The present invention relates to an explosion-proof full-hydraulic washing and sweeping vehicle for underground mines, characterized in that the driving cab is a single-cab space and is arranged on the left front part of the frame; the engine is installed on the frame on the right side of the driving cab, the exhaust pipe of the engine is connected with an exhaust muffler, and the exhaust muffler is installed on the upper right side of the frame and the right rear side of the right side window of the driving cab, and a basalt belt or other heat insulation device is wound around the surface of the exhaust pipe; a cooling and fire-extinguishing water tank is arranged on the exhaust muffler, and the water inlet of the cooling and fire-extinguishing water tank is connected to a clean water tank, and the clean water tank directly provides a water source for the cooling and fire-extinguishing water tank of the exhaust muffler; a methane sensor and a gas measuring instrument are arranged outside the driving cab, and a methane power-off instrument is also arranged on the washing and sweeping vehicle.

Description

(I) Technical field

[0001] The invention relates to the field of special vehicles, in particular to a brand-new explosion-proof full-hydraulic washing and sweeping vehicle for underground mines. (II) Background technology

[0002] At present, traditional washing and sweeping vehicles are composed of two parts, namely, a chassis and a superstructure, resulting in a large number of parts and components and a large space occupied; the superstructure is generally driven by an engine through a belt to drive a fan and a high-pressure water pump, which is noisy, complicated to repair and maintain, and has a high operating cost; the garbage box is fixed on the subframe, and the subframe is fixed on the chassis, resulting in a high height of the entire vehicle; since it requires a large amount of water during operation, the superstructure will be very long, and the large number of parts on the superstructure make the distance between the front and rear axles of the chassis correspondingly long, resulting in a large turning radius; in terms of the control system, it is also composed of two parts, namely, a chassis and a superstructure, which basically do not interfere with each other, resulting in many control points, high costs, and inconvenient installation and modification; and for the need to install other devices, they can only be designed and installed based on the existing position of the chassis, resulting in poor installation effect and inconvenience.

[0003] As for the cleaning and sweeping operations underground in mines, due to the particularity of the environment, the underground space is small, the turning space is small, there is a lot of gas, the noise cannot be too loud, the terrain is complex, and sometimes other devices need to be installed to clean the inner wall of the underground passage. The cleaning and sweeping vehicle is required to have a low height, a small turning radius, low noise, low energy consumption, good explosion-proof performance of the whole vehicle, reasonable matching of the cleaning operation time, large driving force, and convenient and fast installation of other devices. The current traditional cleaning and sweeping vehicles cannot meet the above requirements. There has not been a cleaning and sweeping vehicle on the market or in patents that can truly operate safely underground in mines.

[0004] Therefore, it is very necessary to develop a mine underground cleaning and sweeping vehicle that overcomes the above problems. (III) Summary of the invention

[0005] The technical solution of the present invention is to provide an explosion-proof fully hydraulic washing and sweeping vehicle for underground mines. In view of the defects existing in the background technology, the purpose of the present invention is to provide a washing and sweeping vehicle with a simple structure, low energy consumption, low noise, good explosion-proof performance of the whole vehicle, small turning radius, low height, the ability to drive on complex terrain, and reasonable matching of cleaning operation time.

[0006] In order to achieve the above-mentioned object, the present invention provides an explosion-proof full-hydraulic washing and sweeping vehicle for underground mines, wherein the washing and sweeping vehicle comprises a chassis, a power system, a high-pressure water system, a hydraulic system, a cleaning system, a suction system, a garbage box, an electric control system, and an air control system; the chassis comprises an engine, a cab, and tires; the power system comprises a fan, the high-pressure water system comprises a clean water tank, a high-pressure water pump, and a high-pressure water separator; the hydraulic system comprises a hydraulic oil tank and a hydraulic oil pump; the cleaning system comprises a sweeping brush plate, and the sweeping brush plate is driven and operated by a hydraulic motor; the air control system comprises an air compressor, and is characterized in that the cab is a single cab space and is arranged at the left front part of the frame;

[0007] The hydraulic oil tank is provided with only one hydraulic oil tank for supplying hydraulic oil to all hydraulic oil pumps. The hydraulic oil tank and hydraulic oil radiator are uniformly installed at the rear of the cab and the front of the garbage box, and are all exposed to the outside;

[0008] The engine is installed on the frame on the right side of the cab, the exhaust pipe of the engine is connected to an exhaust muffler, and the exhaust muffler is installed on the upper right side of the frame and the right rear side of the right side window of the cab, and the surface of the exhaust pipe is wrapped with basalt tape or other heat insulation devices;

[0009] The exhaust muffler is provided with a cooling and fire-fighting water tank, the water inlet of which is connected to a clean water tank, and the clean water tank directly provides a water source for the cooling and fire-fighting water tank of the exhaust muffler;

[0010] The engine oil tank is installed at the rear of the cab; the fan and high-pressure water pump are directly installed on the frame, close to the chassis hydraulic oil tank and the engine oil tank;

[0011] The engine directly drives all the hydraulic oil pumps and air compressors of the vehicle; the fan, high-pressure water pump and chassis driving are all controlled by the hydraulic system; a methane sensor and a gas meter are installed outside the cab, and a methane power-off device is also installed on the washing and sweeping vehicle. The methane power-off device is connected to the vehicle control system and the gas meter. When the methane sensor and the gas meter detect that the gas concentration around the vehicle reaches the set concentration, the methane power-off device issues a power-off command, and the vehicle control system controls the washing and sweeping vehicle to automatically stop and shut down, and stop working. In this way, the washing and sweeping vehicle is only equipped with one hydraulic oil tank, and the hydraulic heat dissipation system can cool the hydraulic oil more centrally, so that the washing and sweeping vehicle can operate safely. The terrain of the mine is complex, and sometimes other devices need to be installed to clean the inner wall of the underground passage. The cleaning vehicle needs to have a low height and a small turning radius. The frame is designed as an integrated short wheelbase structure, equipped with a bracket connecting the box and the lifting box; the cab is designed as a single driving space and is set at the left front end of the frame. The engine is installed on the frame on the right side of the cab, making full use of the space on the right side of the cab, shortening the distance between the front and rear axles, and reducing the turning radius of the cleaning vehicle, making it convenient to realize turning and U-turning in the limited space underground. At the same time, preventing and controlling gas explosion accidents underground in mines is the key to achieving safe production in mines, and the electric sparks generated by static electricity can cause serious disasters of gas combustion and explosion underground. Metal mechanical equipment in an insulated state to the ground generates a high electrostatic potential due to friction during use, and the resulting electrostatic spark discharge may ignite or detonate gas. There are three conditions that must be met for a gas explosion in a mine: ① gas concentration, ② a certain ignition temperature, and ③ oxygen concentration. When the gas concentration in the air reaches 5-16%, it reaches the gas explosion limit. For safe production in mines, the sweeper operation usually needs to stop when the gas concentration reaches 0.5% until the gas concentration is reduced or the risk is eliminated. The operation can be continued only after the gas concentration is reduced or the risk is eliminated. The ignition temperature of gas in the air is 650-750℃, and the exhaust pipe temperature of the sweeper may exceed this temperature. Basalt tape or other heat insulation devices should be wrapped around the exhaust pipe surface. The engine The exhaust pipe is connected to the exhaust muffler, and an exhaust gas cooling and fire-removing water tank is arranged on the exhaust muffler. The exhaust muffler is installed on the upper right side of the vehicle frame, and the water inlet of the exhaust gas cooling and fire-removing water tank is connected to the clean water tank, which directly provides water source for the exhaust gas cooling and fire-removing water tank; when the exhaust gas of the engine is discharged into the exhaust gas cooling and fire-removing water tank of the exhaust muffler, the clean water therein can reduce its exhaust temperature and eliminate exhaust sparks, thereby reducing the noise of the engine and solving the harm of the engine exhaust to the underground gas; at the same time, electrical sparks will be generated during the startup and operation of the vehicle, and static electricity needs to be eliminated to eliminate the danger.The present invention monitors the gas concentration. When the gas concentration reaches a set value, which is generally set to 0.5%, the washing and sweeping vehicle will automatically stop and shut down, the operating equipment will stop working, and the static electricity elimination scheme will be used to achieve the purpose of explosion prevention. The purpose of explosion prevention is achieved by stopping the vehicle, shutting down the engine, and stopping operations to ensure safe operation and production.

[0012] The present invention is also characterized in that the front part of the frame extends out of the cab, and a front configuration bracket is arranged on the front part of the frame, and the hydraulic pipeline required for the front configuration is reserved on the front configuration bracket. In this way, the hydraulic pipeline required for the front configuration is reserved on the front configuration bracket. This structure breaks the defects of the design mechanism based on the chassis, solves the problems of inconvenient installation of conventional products, inability of perfect docking of various mechanisms, and insufficient bearing capacity of the front axle.

[0013] The invention is also characterized in that an air filter is installed on the exhaust muffler, which effectively prevents dust residues from entering the exhaust system and causing explosions, and at the same time purifies the exhausted exhaust gas.

[0014] The present invention is also characterized in that the frame is provided with a box rotating seat and a lifting cylinder support seat, and a garbage box rear rotating seat is provided at the rear end of the garbage box, which is installed in the box rotating seat through the rear rotating seat shaft so that the box can rotate around the rear rotating seat shaft; a garbage box lifting seat is provided at the middle front part of the garbage box, which is connected to one end support ring of the box lifting cylinder through the lifting seat shaft, and the other end support ring of the box lifting cylinder is connected to the lifting cylinder support seat through the lifting cylinder shaft; the frame is also provided with a box anti-collision shock absorbing pad seat, a box limit seat, a suction pipe seat bracket, and a suction socket. In this way, the frame is provided with a box shock-absorbing pad seat, which can play a shock-absorbing role on the box; the frame is provided with a box limit seat, which can play a limiting role on the box when the box is lowered, to prevent the box from swinging left and right due to the complex ground conditions underground in the mine during driving; the frame is provided with a suction pipe seat bracket, which is equipped with a suction socket; the frame integrates the box rotating seat, the lifting cylinder support seat, the shock-absorbing pad seat, the limit seat, and the suction pipe seat bracket, which not only makes the vehicle structure more compact, but also reduces the height of the whole vehicle, greatly improving the passability of the whole vehicle.

[0015] The present invention is also characterized in that the methane sensor and / or the gas measuring instrument are arranged on the top of the cab. Since methane gas has a relatively light specific gravity, it generally first accumulates in the upper space of the shaft. By arranging the methane sensor and / or the gas measuring instrument on the top of the cab, the gas concentration can be monitored more quickly and timely.

[0016] The invention is also characterized in that a supporting mechanism is arranged under the chassis at the rear of the vehicle to prevent the vehicle from lifting its head during the unloading process, which can effectively prevent the vehicle from lifting its head during the unloading process.

[0017] The invention is also characterized in that infrared sensor alarms are arranged on both sides of the front of the vehicle where the cab is located, the infrared rays are arranged in a direction perpendicular to the ground and parallel to the garbage bin, and the projection distance between the infrared rays and the garbage bin is greater than 20 centimeters. This effectively avoids obstacles or friction between objects that suddenly appear and the wall of the garbage bin during the forward operation of the vehicle, and avoids the generation of friction sparks.

[0018] The present invention is also characterized in that an electrostatic grounding device is provided on the chassis, and the surface resistivity of the electrostatic grounding device is below 10Ω. An electrical leakage circuit is formed between the vehicle body and the earth, and the object is grounded. In this way, the static electricity generated on the vehicle body will not accumulate when leaking to the earth, and the static electricity potential will not rise, thereby avoiding the phenomenon of static electricity spark discharge, and at the same time preventing objects near the charged object from being charged due to static electricity induction.

[0019] The present invention is also characterized in that the tire is an antistatic rubber tire, and the tire can be a solid tire. Metal powder, conductive carbon black or antistatic additives are mixed into non-conductive materials such as rubber, and metal wires, conductive fibers, and antistatic fibers are woven into a fiber fabric, or metal mesh and conductive carbon black are compounded on the surface of rubber products to greatly increase the conductivity of the object, thereby reducing the resistivity and increasing the electrostatic conductivity of the vehicle body.

[0020] The present invention is also characterized in that a water spray device is provided at the rear of the sweeping brush disc, and the water spray nozzle of the water spray device is aimed at the rear position of the sweeping brush disc to keep the relative humidity of the sweeping brush disc environment above 70%. The sweeping brush disc is very easy to generate static electricity when working. The water spray nozzle of the water spray device is directly aimed at the rear position of the sweeping brush disc. Without affecting the normal operation of the sweeping brush disc, the relative humidity in the working environment is increased to form a thin water film on the surface of the charged body. The impurities and dissolved substances in the water film are used to reduce the surface resistance of the charged body, accelerating the dissipation and leakage of static electricity; the relative humidity of the environment should be maintained above 70% to achieve the best effect of static charge dissipation. The use of the water spray device reduces the flying of coal dust, which also reduces these small charged particles, and at the same time increases the relative humidity of the environment, which can accelerate the dissipation and leakage of static charge.

[0021] The invention is also characterized in that infrared sensor alarms are arranged on both sides of the front of the vehicle where the cab is located, the infrared rays are arranged in a direction perpendicular to the ground and parallel to the garbage bin, and the projection distance between the infrared rays and the garbage bin is greater than 20 centimeters. This effectively avoids obstacles or friction between objects that suddenly appear and the wall of the garbage bin during the forward operation of the vehicle, and avoids the generation of friction sparks.

[0022] The present invention is also characterized in that an electrostatic grounding device is provided on the chassis, and the surface resistivity of the electrostatic grounding device is below 10Ω. An electrical leakage circuit is formed between the vehicle body and the earth, and the object is grounded. In this way, the static electricity generated on the vehicle body will not accumulate when leaking to the earth, and the static electricity potential will not rise, thereby avoiding the phenomenon of static electricity spark discharge, and at the same time preventing objects near the charged object from being charged due to static electricity induction.

[0023] The present invention is also characterized in that the fan is provided with a locking device, and the vehicle-mounted electrical equipment is provided with an electrical protection device.

[0024] The present invention is also characterized in that the tire is an antistatic rubber tire, and the tire can be a solid tire. Metal powder, conductive carbon black or antistatic additives are mixed into non-conductive materials such as rubber, and metal wires, conductive fibers, and antistatic fibers are woven into a fiber fabric, or metal mesh and conductive carbon black are compounded on the surface of rubber products to greatly increase the conductivity of the object, thereby reducing the resistivity and increasing the electrostatic conductivity of the vehicle body.

[0025] The present invention is also characterized in that a water spray device is provided at the rear of the sweeping brush disc, and the water spray nozzle of the water spray device is aimed at the rear position of the sweeping brush disc to keep the relative humidity of the sweeping brush disc environment above 70%. The sweeping brush disc is very easy to generate static electricity when working. The water spray nozzle of the water spray device is directly aimed at the rear position of the sweeping brush disc. Without affecting the normal operation of the sweeping brush disc, the relative humidity in the working environment is increased to form a thin water film on the surface of the charged body. The impurities and dissolved substances in the water film are used to reduce the surface resistance of the charged body, accelerating the dissipation and leakage of static electricity; the relative humidity of the environment should be maintained above 70% to achieve the best effect of static charge dissipation. The use of the water spray device reduces the flying of coal dust, which also reduces these small charged particles, and at the same time increases the relative humidity of the environment, which can accelerate the dissipation and leakage of static charge.

[0026] The present invention is also characterized in that the fan of the power system is controlled by a hydraulic system.

[0027] The present invention is also characterized in that the high-pressure water system also includes a high-pressure water pipeline, a high-pressure nozzle, and a flushing device; the high-pressure water pump is controlled by a hydraulic motor, and a high-pressure water source is provided to the high-pressure nozzle and the flushing device through the high-pressure water pipeline; the high-pressure water separation can effectively and purposefully convert each high-pressure nozzle and the flushing device; the high-pressure nozzles are respectively arranged at the rear part, the side part, and the inside of the garbage box, which can clean the road surface and flush the garbage in the garbage box, making it convenient to unload the garbage in the garbage box.

[0028] The present invention is also characterized in that the hydraulic system also includes actuators (such as hydraulic cylinders, hydraulic motors), hydraulic valve groups, hydraulic pipelines, etc. The hydraulic oil tank provides hydraulic oil storage, the hydraulic oil pump provides pressure oil, and through the hydraulic valve groups and hydraulic pipelines, each actuator is purposefully supplied with and returned with oil; the hydraulic valve groups are all explosion-proof hydraulic valves.

[0029] The present invention is also characterized in that the cleaning system also includes a sweeping brush lifting mechanism, which lifts and lowers the sweeping brush disc through a hydraulic cylinder, and the sweeping brush disc is driven by a hydraulic motor; the suction system includes a suction mouth body, left and right outward swing brackets; the left and right outward swing brackets are equipped with water spray rods; the electric control system includes lamps, sensors, connecting lines, controllers, and operating screens; all of its electric control components and connecting lines have explosion-proof qualifications or explosion-proof certifications; the air control system includes an air compressor, an air storage cylinder, a dryer, an electromagnetic control valve, and an actuator (such as a cylinder, a pneumatic motor), and the electromagnetic control valves are all explosion-proof control valves.

[0030] The present invention is also characterized in that the hydraulic pump and the air compressor are driven by the same engine, and the engine is explosion-proof, including but not limited to the starter, the generator, the fuel injection pump, and the exhaust system; during the operation of the cleaning and sweeping vehicle, the engine speed is in a constant state, and the constant speed is determined according to the engine characteristic drive line, and the speed with the best economy is selected under the condition of satisfying the power torque output;

[0031] The present invention is also characterized in that the engine exhaust system of the cleaning and sweeping vehicle uses cooling water for cooling, and the cooling water comes from a clean water tank;

[0032] The present invention is also characterized in that the clean water tank and the garbage bin of the washing and sweeping vehicle must meet work requirements, the volumes of the clean water tank and the garbage bin vary according to the vehicle model and the water spray nozzle, and the flow ratio of the garbage bin, the water tank, and the water spray nozzle is preferably 30:55:1.

[0033] The invention is also characterized in that the sweeping brushes of the washing and sweeping vehicle are installed inside the left and right chassis frames and have the function of automatically avoiding obstacles or self-resetting. The sweeping brushes are motor-controlled and can achieve three-speed shifting; the suction port is installed behind the rear tire of the vehicle.

[0034] The present invention is also characterized in that the chassis frame is an integrated structure, comprising:

[0035] A1. Equipped with brackets for connecting the garbage box, lifting the box, and supporting the box, so that the garbage box can be directly installed on the frame;

[0036] A2. Equipped with a forward fixed seat, which can be equipped with a flushing device and a roller brush device;

[0037] A3. Equipped with box limit seat;

[0038] A4. Equipped with shock-absorbing pads for the box.

[0039] The present invention is also characterized in that the garbage box is directly mounted on the chassis frame, and the distance (wheelbase) between the centers of the front and rear axles of the chassis is between 2800mm and 3500mm, preferably 3100mm.

[0040] The present invention is also characterized in that the control system of the whole vehicle is concentrated on an operation box, and the operation box is installed on the instrument panel in the cab.

[0041] The present invention is also characterized in that the chassis cab is a single driving space.

[0042] The advantages of the present invention are:

[0043] ① Shorten the center distance (wheelbase) of the front and rear axles, shorten the turning radius and improve the passability;

[0044] ② The cab adopts a single driving space, which provides a wider field of vision and makes the vehicle layout more compact;

[0045] ③. The vehicle adopts a single engine to drive the hydraulic oil pump. Its travel, fan and high-pressure water pump are all hydrostatically driven, with low noise, stable operation, lower maintenance cost than dual engines, and more environmentally friendly;

[0046] ④. The whole vehicle has only one hydraulic oil tank and hydraulic cooling system, which greatly reduces the difficulty of manufacturing and installing parts and makes the whole vehicle more compact;

[0047] ⑤. The garbage box is directly installed on the chassis frame, thus saving the subframe system in the current product, which not only saves costs, but also makes the height of the vehicle lower and increases its passability;

[0048] ⑥ All electronic control components, lamps, solenoid valves, and electronic control cables are explosion-proof to ensure safe operation in mines;

[0049] ⑦. The suction mouth is installed behind the rear tire of the vehicle to meet the working requirements while ensuring its turning radius;

[0050] ⑧. The vehicle control system is centralized in the operation box, which reduces the control points as much as possible and facilitates installation and control. This not only reduces manufacturing costs, but also further ensures work safety;

[0051] ⑨. The chassis is equipped with a forward extension fixed seat, and a high-pressure hydraulic oil circuit interface is reserved at the forward extension fixed seat, which can be equipped with a flushing device and a roller brush device, making installation more convenient;

[0052] ⑩. Both the front and rear axles are specially designed and equipped with solid tires, which have high load, high pressure and high wear resistance. The vehicle's movement is hydraulically controlled, which can more effectively achieve a wider range of stepless speed changes during operation. Its speed regulation performance is not limited by the engine speed change, and it can drive in more complex terrain. (IV) Description of the drawings

[0053] Figure 1 This is a schematic diagram of the overall structure of an explosion-proof fully hydraulic washing and sweeping vehicle for underground mines of the present invention;

[0054] Figure 2 The chassis of the explosion-proof full hydraulic sweeper for underground mines of the present invention is shown in FIG. Figure 1 ;

[0055] Figure 3 The chassis of the explosion-proof full hydraulic sweeper for underground mines of the present invention is shown in FIG. Figure 2 ;

[0056] Figure 4 The chassis of the explosion-proof full hydraulic sweeper for underground mines of the present invention is shown in FIG. Figure 3 ;

[0057] Figure 5 It is a schematic diagram of a fan for an explosion-proof full hydraulic sweeper for underground mines of the present invention;

[0058] Figure 6 This is a schematic diagram of the water system of an explosion-proof fully hydraulic sweeper used underground in mines;

[0059] Figure 7 This is a schematic diagram of the cleaning system of an explosion-proof full-hydraulic sweeper used in underground mines;

[0060] Figure 8 This is a schematic diagram of the box system of an explosion-proof fully hydraulic sweeper used underground in mines;

[0061] Fig. 9 This is a schematic diagram of the electronically controlled air circuit system of an explosion-proof fully hydraulic sweeper used underground in mines. (V) Specific implementation methods

[0062] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementations. The following embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The terms "power system", "water spray system", "hydraulic system" and other system divisions in the present invention are only for the convenience of description, not a specific division method; and the structural parts included in the various systems described in the present invention are only for the purpose of facilitating the description of the present invention. Other accessories not described in the system, such as pipe connections in the hydraulic system, pipe connections in the waterway, the setting of each waterway nozzle, bolt connections and other necessary devices, cannot be understood as limitations of the present invention.

[0063] In the following figures of the present invention, the same numbers have the same descriptions. In the figures, 1 is the chassis, 2 is the power system, 3 is the high-pressure water system, 4 is the hydraulic system, 5 is the cleaning system, 6 is the suction system, 7 is the garbage box, 8 is the electric control system, 9 is the air control system, and 10 is the rear support system;

[0064] 11 is a vehicle frame, 111 is a box rotating seat, 112 is a lifting cylinder support seat, 113 is a front configuration bracket, 114 is a box shock-absorbing cushion seat, 115 is a box limit seat, and 116 is a suction pipe seat bracket; 12 is a cab, 13 is an engine, 14 is an exhaust pipe, 15 is an exhaust muffler, 16 is a front axle, 17 is a rear axle, 18 is a front shock-absorbing leaf spring, 19 is a rear shock-absorbing leaf spring, and 20 is a solid tire;

[0065] 21 is a fan; 22 is an air inlet, 23 is an air outlet, and 24 is a bearing seat;

[0066] 31 is a clean water tank, 32 is a high-pressure water pump, 33 is a water distribution body, 34 is a high-pressure water rear spray rod, 35 are left and right spray rods, 36 is a water spray rod in the garbage bin, 37 is a car wash hose reel, 38 is a water filter, 39 is a high-pressure ball valve, and 39A is a high-pressure water nozzle;

[0067] 41 is the first hydraulic oil pump, 42 is the second hydraulic oil pump, 43 is the third hydraulic oil pump, 44 is the fourth hydraulic oil pump, 45 is the driving motor, 46 is the fan motor, 47 is the high-pressure water pump motor, 48 is the sweeping hydraulic motor, 49 is the main hydraulic valve group, 49A is the hydraulic oil tank, 49B is the box lifting cylinder, 49C is the hydraulic oil radiator, and 49D is the sweeping lifting cylinder;

[0068] 51 is a cleaning fixed seat, 52 is a cleaning disc, 53 is a bearing seat, and 54 is a sweeping brush return spring;

[0069] 60 is the suction port body, 61 is the suction port suction pipe, 63 is the suction socket, 64 is the suction socket rubber ring, 65 is the left and right water spray rod fixing seats, 66 is the rear water spray rod fixing seat, 67 is the suction port fixing seat, 68 is the suction port, and 69 is the fan air inlet sealing pad;

[0070] 71 is the garbage bin body, 72 is the garbage bin suction port, 73 is the garbage bin air outlet, 74 is the garbage bin rear rotating seat, 75 is the garbage bin lifting seat, 76 is the rear rotating seat shaft, 77 is the lifting seat shaft, and 78 is the lifting cylinder shaft;

[0071] 80 is an instrument panel, 81 is an integrated control panel, 82 is a line concentration box, and 83 is a gas measuring instrument;

[0072] 91 is a cylinder, 92 is a gas control valve, 93 is an air storage cylinder, and 94 is an air compressor.

[0073] like Figure 1-6 As shown, the explosion-proof full hydraulic washing and sweeping vehicle for underground mines of the present invention comprises a chassis 1, a power system 2, a high-pressure water system 3, a hydraulic system 4, a cleaning system 5, a suction system 6, a garbage box 7, an electric control system 8, and a pneumatic control system 9;

[0074] like Figure 2 As shown, the chassis 1 includes a frame 11, a cab 12 is installed at the front of the frame 11, and a single driving space is adopted to make the driver's field of vision wider; the engine 13 is installed on the frame 11 and is located on the right side of the cab 12, the exhaust muffler 15 is installed on the right side of the cab 12, the air filter 19D is installed on the exhaust muffler 15, the diesel tank 19C, the hydraulic oil tank 50, and the hydraulic oil radiator 49C are uniformly installed at the rear of the cab, and the front of the garbage box 71 is all exposed to the outside, which can better dissipate heat and solve the problem of mine The high temperature of the hydraulic oil caused by the high temperature of the well and poor ventilation; the fan 21 and the high-pressure water pump 32 are directly installed on the frame 11, close to the chassis hydraulic oil tank 50 and the diesel tank 19C, so that the installation space of the whole vehicle is reduced while ensuring that the volume of the water tank and the garbage tank meets the cleaning requirements, so that the distance (wheelbase) between the center of the front axle 16 and the rear axle 17 is shortened, and the turning radius of the whole vehicle is smaller; the distance between the front axle 16 and the rear axle 17 is generally between 2800mm-3500mm, and the best is 3100mm;

[0075] The frame 11 includes a box rotating seat 111, a lifting cylinder support seat 112, a front configuration bracket 113, a box shock-absorbing pad seat 114, a box limit seat 115, and a suction pipe seat bracket 116; a trash box rear rotating seat 74 is provided at the rear end of the trash box 71, which is installed in the box rotating seat 111 through a rear rotating seat shaft 76, so that the box can rotate around the rear rotating seat shaft 76; a trash box lifting seat 75 is provided at the middle front part of the trash box 71, which is connected to one end support ring of the box lifting cylinder 49B through a lifting seat shaft 77, and the other end support ring of the box lifting cylinder 49B is connected to the lifting cylinder support seat 112 through a lifting cylinder shaft 78; the number of box lifting cylinders 49B can be There are one or more; the frame 11 is provided with a box shock-absorbing pad 114, which can play a shock-absorbing role on the box 71; the frame 11 is provided with a box limit seat 115, which can limit the box 71 when the box 71 is lowered, so as to prevent the box from swinging left and right due to the complex ground conditions in the mine during driving; the frame 11 is provided with a suction pipe seat bracket 116, which is equipped with a suction socket 63; the frame 11 integrates the box rotating seat 111, the lifting cylinder support seat 112, the shock-absorbing pad seat 114, the limit seat 115, and the suction pipe seat bracket 116, which not only makes the structure of the vehicle more compact, but also reduces the height of the whole vehicle, greatly improving the passability of the whole vehicle.

[0076] The vehicle frame 11 extends beyond the cab and has a front configuration bracket 113, which is directly connected to the vehicle frame 11 and can be equipped with a flushing device and a roller brush device; the front axle, spring steel plate, and solid tire have been reinforced to meet the load-bearing requirements of the front device; on the front configuration bracket 113, hydraulic pipelines required for the front configuration are reserved. This structure breaks the defects of the chassis design mechanism and solves the problems of inconvenient installation of conventional products, the inability of various mechanisms to perfectly connect, and insufficient load-bearing capacity of the front axle.

[0077] The engine 13 is connected to a first hydraulic oil pump 41, a second hydraulic oil pump 42, a third hydraulic oil pump 43, and a fourth hydraulic oil pump 44; the engine 13 has a constant speed function. When the washing and sweeping vehicle is working, the engine 13 can be stabilized at a speed without manual intervention. The speed is not a fixed value, but is determined according to the characteristic drive line of the engine 13. Under the condition of satisfying the power and torque output of the whole vehicle, the speed with the best economy is taken as the standard; the front axle 16 is a driving steering axle, which is equipped with a front shock-absorbing leaf spring 18, and the rear axle 17 is equipped with a rear shock-absorbing leaf spring 19, which can also be an air suspension; the front axle 16 and the rear axle 17 are both equipped with solid tires 20, and the front axle 16 is equipped with a driving motor 45, which is connected to the hydraulic oil pump 41 through a hydraulic pipe and a driving hydraulic valve group 48; when the hydraulic oil pump 41 is running, it can drive the driving motor 45 to rotate, thereby driving the chassis to move; the integrated control panel 81 is installed on the instrument panel 21.

[0078] Both the front and rear axles are equipped with solid tires, which can provide high load, high pressure, high wear resistance, high torque, and speed regulation performance that is not limited by engine speed changes, allowing the vehicle to operate under complex road conditions in mines and underground.

[0079] like Figure 3 As shown, the fan 21 is installed on the frame 11, and a bearing seat 24 is installed on the fan 21. One end of the bearing seat 24 is installed on the fan impeller, and the other end is installed with a fan motor 46. The hydraulic oil pump motor 46 is connected to the hydraulic oil pump 42 through a hydraulic pipeline; the air inlet 22 is connected to the trash bin air outlet 73, and a fan air inlet sealing gasket 69 is installed in the middle. The air outlet 23 is installed at the air outlet of the fan 21. The air outlet 23 can be installed with a silencer or a separate exhaust device.

[0080] like Figure 4 As shown, the clean water tank 31 provides a source of water for washing the vehicle, and is connected to the high-pressure water pump 32 through a water filter 38 and a water pipe. The high-pressure water pump 32 is connected to the water diversion body 33 through a water pipe. The water diversion body 33 is respectively connected to the high-pressure water rear spray rod 34, the left and right spray rods 35, the water spray rod 36 in the garbage bin, and the car washing hose reel 37 through water pipes; there are several water outlets 39 on the water diversion body, each of which is equipped with a high-pressure ball valve 40, and the cylinder 91 controls the switch of the high-pressure ball valve 40; the high-pressure water pump is equipped with a high-pressure water pump motor 47, and the high-pressure water pump motor 47 is connected to the hydraulic oil pump 43 through an oil pipe; the air compressor 94 is driven by the engine 13 and is connected to the dryer 95 through an air circuit connecting pipe, the dryer is connected to the air storage cylinder 93 through an air circuit connecting pipe, the air storage cylinder 93 is connected to the air control valve 92 through an air circuit connecting pipe, and then connected to the actuators such as the cylinder.

[0081] like Figure 5As shown, in the cleaning system 5, a cleaning fixed seat 51 is installed on the frame 11, one on the left and one on the right, and a cleaning disc 52 is installed on a bearing seat 53. A sweeping hydraulic motor 44 is installed on the bearing seat 53. The sweeping hydraulic motor 44 is connected to the main hydraulic valve group 49 through a hydraulic connecting pipe, and can achieve three-level speed regulation of the hydraulic motor 44, including speed regulation above three levels. Since the specific implementation of its sweeping system is described in detail in another invention, the present invention will not repeat it again.

[0082] In the suction system 6, the suction port fixing seat 67 is installed to the rear part of the frame 11, and the suction port body 61 is connected to the suction port fixing seat 67 through a connecting rod, so that the suction port body 61 can float freely up and down, and the suction port body 61 is lifted by an oil cylinder or a pneumatic cylinder. The suction port 61 is provided with left and right water spray rod fixing seats 65 and a rear water spray rod fixing seat 66. The left and right water spray rod fixing seats 65 are installed with left and right side spray rods 35, which are swung outward or recovered by the oil cylinder. The rear water spray rod fixing seat 66 is installed with a high-pressure water rear spray rod 34; the suction port body 61 is provided with left and right suction ports 68, and a suction seat rubber ring 64 is installed in the middle to ensure its sealing performance. A suction port suction pipe 61 is connected to the suction seat 63 and the suction port 68, and the suction seat 63 is connected to the garbage bin suction port 72. When the suction port suction pipe 61 is blocked, the garbage bin body can be lifted and repaired through the suction seat 63, and the suction seat 63 is directly installed on the suction pipe seat bracket 116, which reduces the height of the entire vehicle and achieves the purpose of convenient maintenance.

[0083] like Figure 6 As shown, a garbage bin rear swivel seat 74 is provided at the rear end of the garbage bin 71, which is installed in the bin swivel seat 111 through a rear swivel seat shaft 76, so that the bin can rotate around the rear swivel seat shaft 76; a garbage bin lifting seat 75 is provided at the middle front part of the garbage bin 71, which is connected to one end support ring of the bin lifting cylinder 49B through a lifting seat shaft 77, and the other end support ring of the bin lifting cylinder 49B is connected to the lifting cylinder support seat 112 through a lifting cylinder shaft 78; the number of bin lifting cylinders 49B can be one or more.

[0084] like Figure 7 As shown, the integrated control panel 81 is installed on the instrument panel 21 and is connected to each hydraulic valve and each air control valve through an explosion-proof wiring harness. All wiring heads are installed in a circuit concentration box 82. The circuit concentration box is a steel plate structure, and the interior must undergo explosion-proof testing or explosion-proof certification. The integrated control system can unify the original chassis control and upper body control into one control system, which not only makes the circuit more regular, but also reduces control points and electronic components, and can further ensure the explosion-proof safety of electrical components.

[0085] In practice, its vehicles have the following functions:

[0086] 1. Normal driving function of the vehicle: When the vehicle is driving normally, the engine 13 is kept at a certain speed, driving all hydraulic oil pumps and air compressors to operate. Except for the hydraulic oil pump 41, other oil pumps are in an unloaded state. At this time, the hydraulic oil pump 41 drives the driving motor 45 to rotate, so that the solid tire 20 rotates, and the whole vehicle is in a forward state; when the vehicle needs to accelerate or decelerate, the pedal is stepped on or lifted, and the opening of the hydraulic oil pump 41 is controlled by the hydraulic valve, the displacement of the hydraulic oil pump 41 is increased or decreased, and the speed of the hydraulic motor 45 is increased or decreased accordingly, so as to achieve the purpose of increasing or decreasing speed. The use of hydraulic drive can more effectively achieve a wide range of infinitely variable speeds during operation, and its speed regulation performance is not limited by the engine speed change, with large torque and strong driving force. The selection of solid tires 20 also has high load, high pressure and high wear resistance, so that the vehicle can operate under complex road conditions in mines and underground. All instruments and meters of the vehicle are displayed on the integrated control panel 81, which reduces the control points as much as possible, facilitates installation and control, and can not only reduce manufacturing costs, but also further ensure work safety.

[0087] 2. Vehicle operation: The speed of the engine 13 is constant at a certain speed, and at this time, all hydraulic oil pumps are driven to operate, as follows:

[0088] A. The engine 13 drives the hydraulic oil pump 42 to operate, and the hydraulic oil pump 42 drives the fan motor 46 to rotate, and the fan motor 46 drives the fan impeller to move, so that the fan 21 works; because the garbage box 71 is connected to the air inlet 22, and is sealed by the fan air inlet sealing gasket 69, the garbage box 71 becomes negative pressure, and under the action of atmospheric pressure, the garbage and sewage enter the suction port suction pipe 62 through the suction port body 61, and then enter the garbage box suction port 72 through the suction socket 63, and then enter the garbage box 71, completing the suction function; when the amount of garbage is large or small, by adjusting the corresponding control knob on the integrated control panel 81, the opening of the hydraulic oil pump 42 is controlled, the displacement of the hydraulic oil pump 42 is increased or decreased, and the speed of the fan motor 46 is increased or decreased accordingly, so as to achieve the purpose of increasing or decreasing the speed of the fan.

[0089] B. High-pressure water operation: The engine 13 drives the hydraulic oil pump 43 to operate, and the hydraulic oil pump 43 drives the high-pressure water pump motor 47 to operate, and the high-pressure water pump is in a rotating state. The vehicle provides high-standard "left washing and sweeping", "right washing and sweeping", and "full washing and sweeping" modes, which can be adjusted through the integrated control panel 81.

Claims

1. An explosion-proof fully hydraulic washing and sweeping vehicle for underground mines, the washing and sweeping vehicle comprising a chassis, a power system, a high-pressure water system, a hydraulic system, a cleaning system, a suction system, a garbage box, an electric control system, and an air control system; the chassis comprises an engine, a cab, and tires; the power system comprises a fan, the high-pressure water system comprises a clean water tank, a high-pressure water pump, and a high-pressure water separator; the hydraulic system comprises a hydraulic oil tank and a hydraulic oil pump; the cleaning system comprises a sweeping brush plate, and the sweeping brush plate is driven by a hydraulic motor; the air control system comprises an air compressor, characterized in that The cab is a single cab space and is arranged at the left front part of the frame; The hydraulic oil tank is provided with only one hydraulic oil tank for supplying hydraulic oil to all hydraulic oil pumps. The hydraulic oil tank and hydraulic oil radiator are uniformly installed at the rear of the cab and the front of the garbage box, and are all exposed to the outside; The engine is installed on the frame on the right side of the cab, the exhaust pipe of the engine is connected to an exhaust muffler, and the exhaust muffler is installed on the upper right side of the frame and the right rear side of the right side window of the cab, and the surface of the exhaust pipe is wrapped with basalt tape; The exhaust muffler is provided with a cooling and fire-extinguishing water tank, the water inlet of which is connected to a clean water tank, and the clean water tank directly provides a water source for the cooling and fire-extinguishing water tank of the exhaust muffler; The engine oil tank is installed at the rear of the cab; the fan and high-pressure water pump are directly installed on the frame, close to the chassis hydraulic oil tank and the engine oil tank; The engine directly drives all the hydraulic oil pumps and air compressors of the vehicle; the fan, high-pressure water pump and chassis driving are all controlled by the hydraulic system; a methane sensor and a gas meter are arranged outside the cab, and a methane power-off instrument is also arranged on the washing and sweeping vehicle, which is connected to the vehicle control system and the gas meter. When the methane sensor and the gas meter detect that the gas concentration around the vehicle reaches the set concentration, the methane power-off instrument issues a power-off command, and the vehicle control system controls the washing and sweeping vehicle to automatically stop and shut down, and stop the operation; The front part of the frame extends out of the cab, and a front configuration bracket is arranged on the front part of the frame, and a hydraulic pipeline required for the front configuration is reserved on the front configuration bracket; An air filter is installed on the exhaust muffler; The frame is provided with a box rotating seat and a lifting cylinder support seat. The rear end of the garbage box is provided with a garbage box rear rotating seat, which is installed in the box rotating seat through the rear rotating seat shaft so that the box can rotate around the rear rotating seat shaft; the middle front part of the garbage box is provided with a garbage box lifting seat, which is connected to one end support ring of the box lifting cylinder through the lifting seat shaft, and the other end support ring of the box lifting cylinder is connected to the lifting cylinder support seat through the lifting cylinder shaft; the frame is also provided with a box anti-collision shock absorbing pad seat, a box limit seat, a suction pipe seat bracket, and a suction socket.

2. The explosion-proof fully hydraulic sweeper for underground mines according to claim 1 is characterized in that The methane sensor and / or the gas measuring instrument are arranged on the top of the cab.

3. The explosion-proof fully hydraulic sweeper for underground mines according to claim 2 is characterized in that A supporting mechanism is arranged under the chassis at the rear of the vehicle to prevent the vehicle from lifting its head during the unloading process.

4. The explosion-proof fully hydraulic sweeper for underground mines according to claim 1, characterized in that Infrared sensor alarms are arranged on both sides of the front part of the vehicle where the cab is located. The infrared rays are arranged in a direction perpendicular to the ground and parallel to the garbage bin body, and the projection distance between the infrared rays and the garbage bin body is greater than 20 centimeters.

5. The explosion-proof fully hydraulic sweeper for underground mines according to claim 2, characterized in that An electrostatic grounding device is arranged on the chassis.

6. The explosion-proof full hydraulic sweeper for underground mines according to claim 2, characterized in that The tire is an antistatic rubber tire.

7. The explosion-proof fully hydraulic sweeper for underground mines according to claim 2, characterized in that A water spray device is arranged at the rear of the sweeping brush plate, and a water mist nozzle of the water spray device is aimed at the rear position of the sweeping brush plate.

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