Standardized engineering vehicle for sand blasting

Abstract

The utility model discloses a standardized sand blasting engineering vehicle which comprises a chassis, a sand blasting device is arranged on the upper portion of the chassis, two sets of walking frames are symmetrically and fixedly arranged at the two ends of the lower portion of the chassis, and a driving wheel and a guide wheel are rotationally arranged at the two ends of each walking frame respectively. A hydraulic walking motor used for driving the driving wheel to rotate is arranged on the walking frame, a tensioning buffering device is arranged between the walking frame and the guide wheel, a plurality of thrust wheels are evenly and rotatably arranged at the bottom of the walking frame at intervals, and two belt supporting wheels are rotatably arranged on the upper portion of the walking frame. And a crawler belt is commonly wound among the driving wheel, the guide wheel, the plurality of thrust wheels and the two belt supporting wheels which are positioned on the same walking frame. According to the utility model, the generator set is adopted to drive the motor, the motor drives the hydraulic walking motor, and then the hydraulic walking motor drives the crawler walking mechanism to operate, so that the walking stability of the sand blasting truck and the trafficability of the sand blasting truck under different construction road conditions are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of sandblasting equipment technology, and in particular to a standardized engineering vehicle for sandblasting. Background Technology

[0002] Sandblasting of the inner wall of steel pipes utilizes compressed air to propel powdered abrasive particles at high speed against the inner wall of the steel pipe, removing impurities such as the oxide layer. This process achieves a certain level of cleanliness and roughness on the inner surface of the steel pipe, while also improving its mechanical properties and increasing adhesion to coatings. A sandblasting engineering vehicle is a standardized mobile sandblasting device. Its movement is achieved via a chassis with a running gear. Existing sandblasting engineering vehicles primarily rely on engine power for their chassis drive mechanism. However, engine use and maintenance costs are high, and the stability of the engine-driven running gear is poor, severely limiting its ability to traverse different terrains. Therefore, a standardized sandblasting engineering vehicle needs to be developed. Utility Model Content

[0003] The purpose of this utility model is to provide a standardized engineering vehicle for sandblasting, thereby solving the technical problems mentioned in the background section.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a standardized sandblasting engineering vehicle, including a chassis. A sandblasting device is installed on the upper part of the chassis. Two sets of walking frames are symmetrically fixed at both ends of the lower part of the chassis. Each walking frame has a drive wheel and a guide wheel rotatably installed at both ends. A hydraulic walking motor for driving the drive wheel is installed on the walking frame. A tensioning and buffering device is installed between the walking frame and the guide wheel. Multiple support rollers are rotatably installed at even intervals at the bottom of the walking frame. Two track rollers are rotatably installed on the upper part of the walking frame. A track is wound around the drive wheel, guide wheel, multiple support rollers and two track rollers located on the same walking frame.

[0006] Furthermore, a generator set and a hydraulic station are provided on the upper part of the chassis. The generator set is electrically connected to a motor. The hydraulic station is connected to the hydraulic travel motor through corresponding hydraulic pipelines. A hydraulic pump driven by the motor is provided on the hydraulic pipelines. Furthermore, the hydraulic travel motor is specifically a swashplate axial piston motor and is connected to the drive wheel through a planetary reducer.

[0007] Furthermore, the hydraulic travel motor is equipped with a normally closed parking brake that is compatible with it.

[0008] Furthermore, the drive wheel includes a hub, and the hub is evenly provided with a plurality of connection holes along the circumference for connecting to the power output end of the hydraulic travel motor; the outer circumference of the hub is provided with spokes, and the outer circumference of the spokes is evenly and detachably provided with a plurality of drive teeth blocks adapted to the track.

[0009] Furthermore, an arc plate is fixedly provided at one end of the drive tooth block near the spoke, and two connecting plates are symmetrically fixedly provided at the bottom of the arc plate on both sides of the spoke. The two connecting plates are detachably connected to the spoke by connecting bolts.

[0010] Furthermore, two reinforcing ribs are symmetrically fixed between the arc plate and the two connecting plates.

[0011] Furthermore, the tensioning buffer device includes a grease tensioning cylinder disposed inside the walking frame. The main body end of the grease tensioning cylinder is provided with an oil inlet valve. The telescopic end of the grease tensioning cylinder is fixedly connected to the fork. A spring is sleeved between the outer side of the main body of the grease tensioning cylinder and the fork. The guide wheel is rotatably disposed at the end of the fork away from the grease tensioning cylinder.

[0012] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0013] This utility model uses a generator set to drive a motor, which in turn drives a hydraulic travel motor, which in turn drives a tracked walking mechanism to operate, thereby effectively improving the walking stability of the sandblasting truck and its passability under different construction road conditions.

[0014] This invention features a detachable tooth block structure on the outside of the drive wheel. When the teeth of the drive wheel are damaged after long-term use, the tooth block in that area can be disassembled and replaced, which effectively reduces replacement costs compared to an integrated drive wheel.

[0015] This utility model utilizes guide wheels and tensioning buffer devices to guide the direction of the tracks, and while adjusting the tension, it also has a certain buffering effect; the grease tensioning cylinder, together with the spring, can make the tracks adapt to working conditions. When the walking is subjected to greater resistance, the spring will be compressed, thereby playing a certain buffering role, protecting the tracks and improving the stability of the walking mechanism. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

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

[0019] Figure 3 This is a front view of the drive wheel structure of this utility model;

[0020] Figure 4 A schematic diagram showing the installation of the toothed blocks in the drive wheel;

[0021] Figure 5 This is a schematic diagram of the tensioning buffer device of this utility model;

[0022] Explanation of reference numerals in the attached drawings: 1. Chassis; 2. Sandblasting main unit; 3. Air tank; 4. Air compressor; 5. Walking frame; 6. Drive wheel; 6-1. Wheel hub; 6-2. Connecting hole; 6-3. Wheel spoke; 6-4. Drive gear block; 6-5. Arc plate; 6-6. Connecting plate; 6-7. Connecting bolt; 6-8. Reinforcing rib; 7. Guide wheel; 8. Hydraulic walking motor; 9. Track roller; 10. Track support roller; 11. Track; 12. Generator set; 13. Hydraulic station; 14. Grease tensioning cylinder; 15. Oil inlet valve; 16. Fork; 17. Spring. Detailed Implementation

[0023] like Figures 1-5 As shown, a standardized sandblasting engineering vehicle includes a chassis 1, on which sandblasting equipment is mounted. The sandblasting equipment specifically includes a sandblasting main unit 2, an air tank 3, and an air compressor 4, all interconnected. The structure and connections of the above equipment are the same as existing sandblasting vehicle equipment, and will not be described in detail here.

[0024] Two sets of traveling frames 5 are symmetrically fixedly installed at both ends of the lower part of the chassis 1. Each traveling frame 5 has a drive wheel 6 and a guide wheel 7 rotatably installed at both ends. A hydraulic traveling motor 8 for driving the drive wheel 6 to rotate is installed on the traveling frame 5. A tensioning buffer device is provided between the traveling frame 5 and the guide wheel 7. Multiple support rollers 9 are rotatably installed at even intervals at the bottom of the traveling frame 5. Two track rollers 10 are rotatably installed on the upper part of the traveling frame 5. A track 11 is wound around the drive wheel 6, guide wheel 7, multiple support rollers 9 and two track rollers 10 located on the same traveling frame 5.

[0025] A generator set 12 and a hydraulic station 13 are also installed on the upper part of the chassis 1. The generator set is electrically connected to a motor. The hydraulic station 13 is connected to the hydraulic travel motor 8 through corresponding hydraulic pipelines, and a hydraulic pump driven by the motor is installed on the hydraulic pipelines. This utility model uses a generator set to drive the motor, the motor to drive the hydraulic travel motor, and then the hydraulic travel motor to drive the tracked travel mechanism, thereby effectively improving the travel stability of the sandblasting truck and its passability in different construction road conditions.

[0026] Furthermore, the hydraulic travel motor 8 in this embodiment is specifically a swashplate axial piston motor, connected to the drive wheel via a planetary reducer, and has a two-speed shifting mechanism (high and low speeds) to achieve two travel speeds. A normally closed parking brake is installed on the hydraulic travel motor 8 to match it.

[0027] As a further improvement to this utility model, the drive wheel 6 includes a hub 6-1, and the hub 6-1 has a plurality of connecting holes 6-2 evenly distributed circumferentially for connecting to the power output end of the hydraulic travel motor 8. The outer periphery of the hub 6-1 is provided with spokes 6-3, and the outer periphery of the spokes 6-3 is evenly and detachably provided with a plurality of drive tooth blocks 6-4 adapted to the track 11.

[0028] Specifically: An arc plate 6-5, adapted to the outer peripheral wall of the spoke, is fixedly installed at one end of the drive tooth block 6-4 near the spoke 6-3. Two connecting plates 6-6 are symmetrically fixedly installed on both sides of the spoke 6-3 at the bottom of the arc plate 6-5. The two connecting plates 6-6 are detachably connected to the spoke 6-3 by connecting bolts 6-7. Furthermore, two reinforcing ribs 6-8 are symmetrically fixed between the arc plate 6-5 and the two connecting plates 6-6.

[0029] By setting a detachable tooth block structure on the outside of the drive wheel, when the teeth of the drive wheel are damaged after long-term use, the tooth block in that part can be disassembled and replaced, which effectively reduces the replacement cost compared to a one-piece drive wheel.

[0030] The tensioning and buffering device includes a grease tensioning cylinder 14 disposed inside the walking frame. The main body end of the grease tensioning cylinder 14 is provided with an oil inlet valve 15. The telescopic end of the grease tensioning cylinder 14 is fixedly connected to the fork 16. A spring 17 is sleeved between the outer side of the main body of the grease tensioning cylinder 15 and the fork 16. The guide wheel 7 is rotatably installed at the end of the fork 16 away from the grease tensioning cylinder 14.

[0031] This utility model utilizes guide wheels and tensioning buffer devices to guide the direction of the tracks, and while adjusting the tension, it also has a certain buffering effect; the grease tensioning cylinder, together with the spring, can make the tracks adapt to working conditions. When the walking is subjected to greater resistance, the spring will be compressed, thereby playing a certain buffering role, protecting the tracks and improving the stability of the walking mechanism.

[0032] In addition, this utility model also includes an electric drive remote control system that is communicatively connected to each actuator. The electric drive remote control system controls the start and stop actions of each actuator, which improves the ease of operation of the equipment and ensures the personal safety of the staff.

[0033] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A standardised blasting engineering vehicle, characterised in that: The bottom plate is provided with a sand blasting device on the upper part, two groups of walking frames are symmetrically fixed on the lower part of the bottom plate, driving wheels and guide wheels are respectively arranged at the two ends of each walking frame, a hydraulic walking motor is arranged on the walking frame for driving the rotation of the driving wheel, a tensioning and buffering device is arranged between the walking frame and the guide wheel, a plurality of supporting wheels are uniformly and rotatably arranged on the bottom of the walking frame, and two supporting wheels are rotatably arranged on the upper part of the walking frame.

2. The engineered vehicle for standardized sandblasting, according to claim 1, characterized by the fact that: The upper part of the bottom plate is provided with a generator set and a hydraulic station, the generator set is electrically connected with a motor, the hydraulic station is connected with the hydraulic walking motor through corresponding hydraulic pipelines, and a hydraulic pump driven by the motor is arranged on the hydraulic pipeline.

3. The engineered vehicle for standardized sandblasting, according to claim 1, characterized in that: The hydraulic walking motor is a swash plate type axial piston motor, and is connected with the driving wheel through a planetary reducer.

4. The engineered vehicle for standardized sandblasting of claim 1, wherein: A normally closed parking brake matched with the hydraulic walking motor is arranged on the hydraulic walking motor.

5. The engineered vehicle for standardized sandblasting of claim 1, wherein: The driving wheel comprises a hub, a plurality of connecting holes for connecting with the power output end of the hydraulic walking motor are uniformly arranged on the hub in the circumferential direction, a spoke is arranged on the outer periphery of the hub, a plurality of driving tooth blocks matched with the track are detachably arranged on the outer periphery of the spoke in the circumferential direction.

6. The engineered vehicle for standardized sandblasting, according to claim 5, characterized in that: An arc plate is fixedly arranged at one end of the driving tooth block close to the spoke, two connecting plates are symmetrically fixed at the bottom of the arc plate on both sides of the spoke, and the two connecting plates are detachably connected with the spoke through connecting bolts.

7. The engineered vehicle for standardized sandblasting, according to claim 6, characterized in that: Two reinforcing rib plates are symmetrically arranged between the arc plate and the two connecting plates.

8. The engineered vehicle for standardized sandblasting of claim 1, wherein: The tensioning and buffering device comprises a butter tensioning oil cylinder arranged in the walking frame, an oil inlet valve is arranged at the main body end of the butter tensioning oil cylinder, the telescopic end of the butter tensioning oil cylinder is fixedly connected with a fork, a spring is sleeved between the outer side of the main body of the butter tensioning oil cylinder and the fork, and the guide wheel is rotatably arranged at one end of the fork away from the butter tensioning oil cylinder.

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