A dovetail groove sliding rail type traveling chassis and an integrated tunneling and anchoring machine

Abstract

A dovetail groove slide rail type chassis includes a left track frame, a right track frame, a middle frame, a cutting section, and a grooving cylinder. The left and right track frames are connected together through the middle frame. Slide rails are fixedly installed on both the left and right track frames. The two slide rails have identical structures and are symmetrically arranged. The left slide rail includes a base plate and a side plate integrally formed with the base plate, forming a groove with the opening facing right between the base plate and the side plate. The two slide rails form a dovetail groove slide rail structure. The cutting section is slidably installed between the two slide rails in the front-back direction. The two ends of the grooving cylinder are respectively connected to the cutting section and the middle frame. A clamping mechanism for pressing the cutting section is installed on both slide rails. This utility model has a higher slide rail structure strength and avoids gaps between the cutting section and the slide rails during cutting operations, which would aggravate cutting vibration, reduce overall machine vibration, prevent vibration fatigue damage, and improve the overall machine lifespan.

Description

Technical Field

[0001] This utility model relates to the field of coal mine roadway excavation equipment technology, specifically to a dovetail groove sliding rail type traveling chassis and an integrated excavation and anchoring machine. Background Technology

[0002] The tunneling and anchoring machine is a type of mechanical equipment suitable for tunneling and support in underground coal mine roadways, enabling simultaneous tunneling and support. Traditional tunneling and anchoring machines typically use a cylindrical slide rail chassis, where two cylindrical slide rails are installed parallel to each other on slide rail mounting seats suspended outside the left and right track frames. The cutting section slides back and forth on these two cylindrical slide rails. During cutting operations, the cutting section generates significant vibrations and cutting reaction forces, which are transmitted to the cylindrical slide rails. Due to the externally suspended installation of the cylindrical slide rails, fatigue damage occurs under long-term vibration stress, leading to decreased parallelism, deformation, and even breakage of the two cylindrical slide rails, thus affecting the normal tunneling operation of the tunneling and anchoring machine.

[0003] Chinese utility model patent CN202121986825.7 discloses a dovetail groove guide rail type tracked chassis and an integrated excavator and anchorer, including two track frames, an intermediate frame installed at the rear end of the two track frames, and a grooving cylinder installed in the internal cavity of the intermediate frame. The two track frames are a left track frame and a right track frame. A left suspension is installed at the front end of the left track frame and a right suspension is installed at the front end of the right track frame. A conveying slider is installed between the left suspension and the right suspension. A single guide rail is provided between the conveying slider and the intermediate frame. A sliding frame is slidably installed on the single guide rail. The grooving cylinder drives the sliding frame to slide back and forth along the single guide rail. The left and right track frames, the middle frame, and the single guide rail form a stable box-shaped structure. The stress at the connection between the track frame and the front suspension is no longer concentrated, and the cutting load is evenly transferred to the track frame and even to the ground. The dovetail groove type single guide rail leaves space for the connection between the left and right track frames, so that the sliding frame can no longer slide due to the two tracks not being parallel because of suspension deformation.

[0004] However, in actual operation, the gap between the slider of the sliding frame and the dovetail groove single guide rail will aggravate the cutting vibration, resulting in increased vibration of the whole machine, vibration fatigue damage to the equipment, and loosening of bolts. At the same time, after long-term construction wear, the above gap will further increase, the vibration fatigue damage of the equipment will be further aggravated, and the service life of the whole machine will be drastically reduced. Summary of the Invention

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a dovetail groove slide rail type walking chassis and an integrated excavation and anchoring machine. This utility model has a higher slide rail structure strength and avoids the gap between the cutting part and the slide rail during cutting construction, which would aggravate the cutting vibration, reduce the vibration of the whole machine, prevent vibration fatigue damage to the equipment, and improve the service life of the whole machine.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a dovetail groove slide rail type walking chassis, including a left track frame, a right track frame, a middle frame, a cutting part and a grooving cylinder. Tracks and driving devices for driving the track movement are installed on both the left track frame and the right track frame. The left track frame and the right track frame are connected together through the middle frame. Slide rails are fixedly installed on both the left track frame and the right track frame along the front and rear directions. The two slide rails have the same structure and are symmetrically arranged. The slide rail on the left includes a base plate and a side plate that is integrally formed with the base plate and is inclined with the left side lower than the right side. A slide rail with the groove opening facing the right is formed between the base plate and the side plate. Two sliding guide rails form a dovetail groove slide rail structure. The cutting part is slidably installed between the two sliding guide rails in the front-to-back direction. The two ends of the grooving cylinder are respectively connected to the cutting part and the intermediate frame. Both slide rails are equipped with clamping mechanisms for clamping the cutting section.

[0007] Beneficial effects: This utility model directly installs sliding guide rails on the left and right track frames. The two sliding guide rails form a dovetail groove sliding rail structure, which can transmit the vibration and cutting reaction force generated during the cutting process to the track. Compared with the traditional externally mounted cylindrical sliding rail, the sliding rail structure has higher strength and will not cause problems such as sliding rail deformation or damage. At the same time, the clamping mechanism can clamp the cutting part, avoiding the gap between the cutting part and the sliding guide rail during the cutting process, which would aggravate the cutting vibration, reduce the vibration of the whole machine, prevent the equipment from vibration fatigue damage, and improve the service life of the whole machine.

[0008] Based on the above, the clamping mechanism includes several clamping cylinders, a movable wear-resistant slider, and a fixed wear-resistant slider; Each clamping cylinder is fixedly installed on the outer side of the side plate at intervals, and the piston rod of each clamping cylinder passes through the side plate and is slidably connected to the side plate. The movable wear-resistant slider is parallel to the side plate and located at the top of the groove. The front and rear dimensions of the movable wear-resistant slider are the same as those of the side plate. The movable wear-resistant slider is fixedly connected to the piston rod end of each clamping cylinder. The movable wear-resistant slider can clamp the cutting part through each clamping cylinder. The fixed wear-resistant slider is parallel to the base plate and located at the bottom of the groove. The front and rear dimensions of the fixed wear-resistant slider are the same as those of the base plate. The fixed wear-resistant slider is fixedly connected to the top surface of the base plate.

[0009] Beneficial effects: The clamping force is provided by driving the movable wear-resistant slider through the clamping cylinder. At the same time, the fixed wear-resistant slider and the movable wear-resistant slider make frictional contact with the cutting part, which reduces friction, reduces the wear of the slide rail, and improves the service life of the slide rail.

[0010] Based on the above, the cutting unit includes a cutting slide, a cutting swing arm hinged on the cutting slide, a swing cylinder connecting the cutting slide and the cutting swing arm, a cutting roller installed on the cutting swing arm, and a cutting reduction motor that drives the cutting roller to rotate and is installed in the cutting swing arm. The left and right sides of the cutting slide are fixedly provided with grooving sliders that are adapted to the slide grooves, and the grooving sliders on both sides are respectively matched and slidably installed in the slide grooves on both sides. The grooving sliders on both sides make sliding friction contact with the corresponding fixed wear-resistant sliders and movable wear-resistant sliders, respectively. The two ends of the grooving cylinder are connected to the cutting slide and the intermediate frame, respectively. The movable wear-resistant sliders on both sides can press the slotted sliders on both sides respectively under the action of the corresponding clamping cylinders.

[0011] Beneficial effects: The slotting slider is compatible with the groove, making the structure more stable. By pressing the slotting slider, the cutting part can be pressed, ensuring normal cutting construction by sliding the cutting part back and forth.

[0012] Based on the above, a protective cover is also installed on the outer side of the side plate, covering each clamping cylinder.

[0013] Beneficial effects: The protective cover can effectively protect each clamping cylinder and prevent the clamping cylinder from being damaged by external force or collision.

[0014] Based on the above, a support leg mechanism for supporting the ground is provided on the rear side of the intermediate frame.

[0015] Beneficial effects: By supporting the ground during the cutting and excavating process of the integrated tunneling and anchoring machine through the outrigger mechanism, a portion of the counter-thrust force of the cutting and excavating can be balanced, preventing the integrated tunneling and anchoring machine from rolling back and stabilizing the machine body.

[0016] Based on the above, the outrigger mechanism includes a rear outrigger hinged to the rear side of the intermediate frame, and an outrigger cylinder for driving the rear outrigger to rise and fall is connected between the rear outrigger and the intermediate frame.

[0017] Beneficial effects: During the cutting and construction process of the tunneling and anchoring machine, the support of the ground by the outrigger cylinders and the rear outrigger can balance part of the counter-thrust of the cutting and trenching, prevent the tunneling and anchoring machine from backing up, and stabilize the machine body.

[0018] Based on the above, the outrigger mechanism includes hydraulic outriggers fixed to the rear side of the intermediate frame.

[0019] Beneficial effects: During the cutting and construction process of the integrated tunneling and anchoring machine, the hydraulic outriggers support the ground, which can balance part of the counter-thrust force of cutting and trenching, prevent the integrated tunneling and anchoring machine from backing up, and stabilize the machine body.

[0020] This utility model also provides an integrated excavation and anchoring machine, including the dovetail groove slide rail type walking chassis as described above. It has the beneficial effects of the dovetail groove slide rail type walking chassis. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the dovetail groove slide rail type walking chassis of this utility model.

[0022] Figure 2 This is a schematic diagram of the dovetail groove slide rail type chassis of this utility model after omitting the cut-off part.

[0023] Figure 3 This is a structural schematic diagram of the left track frame, the slide rail, and the clamping mechanism of this utility model.

[0024] Figure 4 This is a schematic diagram of the cutting part of this utility model.

[0025] Figure 5 This is a structural schematic diagram of the integrated excavation and anchoring machine of this utility model.

[0026] In the diagram: 1. Left track frame; 2. Right track frame; 3. Intermediate frame; 4. Grooving cylinder; 5. Track; 6. Slide rail; 7. Base plate; 8. Side plate; 9. Clamping cylinder; 10. Movable wear-resistant slider; 11. Fixed wear-resistant slider; 12. Cutting slide; 13. Cutting swing arm; 14. Swing cylinder; 15. Cutting roller; 16. Grooving slider; 17. Protective cover; 18. Rear outrigger; 19. Outrigger cylinder; 20. Top anchor system; 21. Side anchor system; 22. Temporary support device; 23. Electrical system; 24. Hydraulic system; 25. Scraper conveyor; 26. Connecting platform. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0028] Example 1 like Figures 1-5 As shown, a dovetail groove sliding rail type walking chassis includes a left track frame 1, a right track frame 2, an intermediate frame 3, a cutting part and a grooving cylinder 4. Tracks 5 and driving devices for driving the tracks 5 are installed on both the left track frame 1 and the right track frame 2. The left track frame 1 and the right track frame 2 are connected together through the intermediate frame 3. Sliding rails 6 are fixedly installed on both the left track frame 1 and the right track frame 2 along the front and rear directions. The two slide rails 6 have the same structure and are symmetrically arranged. The slide rail 6 on the left includes a base plate 7 and a side plate 8 that is integrally formed with the base plate 7 and is inclined with the left side lower than the right side. A slide rail with the groove opening facing the right is formed between the base plate 7 and the side plate 8. Two sliding guide rails 6 form a dovetail groove slide rail structure. The cutting part is slidably installed between the two sliding guide rails 6 in the front-back direction. The two ends of the grooving cylinder 4 are respectively connected to the cutting part and the intermediate frame 3. Both slide rails 6 are equipped with clamping mechanisms for clamping the cutting section.

[0029] The left track frame 1 and the right track frame 2 are both fixedly straddled by a connecting platform 26, and the slide rail 6 is fixedly installed on the connecting platform.

[0030] Furthermore, the clamping mechanism includes several clamping cylinders 9, movable wear-resistant sliders 10, and fixed wear-resistant sliders 11; Each clamping cylinder 9 is fixedly installed on the outer side of the side plate 8 at intervals, and the piston rod of each clamping cylinder 9 passes through the side plate 8 and is slidably connected to the side plate 8. The movable wear-resistant slider 10 is parallel to the side plate 8 and located at the top of the groove. The front and rear dimensions of the movable wear-resistant slider 10 are the same as those of the side plate 8. The movable wear-resistant slider 10 is fixedly connected to the piston rod end of each clamping cylinder 9. The movable wear-resistant slider 10 can clamp the cutting part through each clamping cylinder 9. The fixed wear-resistant slider 11 is parallel to the base plate 7 and located at the bottom of the groove. The front and rear dimensions of the fixed wear-resistant slider 11 are the same as those of the base plate 7. The fixed wear-resistant slider 11 is fixedly connected to the top surface of the base plate 7. Through the frictional contact between the fixed wear-resistant slider 11 and the movable wear-resistant slider 10 and the cutting part, friction is reduced, wear on the groove guide rail 6 is decreased, and the service life of the groove guide rail 6 is improved.

[0031] Furthermore, the cutting section includes a cutting slide 12, a cutting swing arm 13 hinged on the cutting slide 12, a swing cylinder 14 connecting the cutting slide 12 and the cutting swing arm 13, a cutting roller 15 mounted on the cutting swing arm 13, and a cutting reduction motor (not shown) that drives the cutting roller 15 to rotate and is mounted in the cutting swing arm 13. The left and right sides of the cutting slide 12 are fixedly provided with grooving sliders 16 that are adapted to the slide grooves, and the grooving sliders 16 on both sides are respectively matched and slidably mounted in the slide grooves on both sides. The grooving sliders 16 on both sides are in sliding friction contact with the corresponding fixed wear-resistant sliders 11 and movable wear-resistant sliders 10 respectively. The two ends of the grooving cylinder 4 are connected to the cutting slide 12 and the intermediate frame 3 respectively. The movable wear-resistant sliders 10 on both sides can press the slotted sliders 16 on both sides respectively under the action of the corresponding pressing cylinders 9.

[0032] Furthermore, a protective cover 17 is installed on the outer side of the side plate 8, which covers each clamping cylinder 9 and can effectively protect each clamping cylinder 9 from damage caused by external force or collision.

[0033] Furthermore, the rear side of the intermediate frame 3 is provided with a support leg mechanism for supporting the ground.

[0034] Furthermore, the outrigger mechanism includes a rear outrigger 18 hinged to the rear side of the intermediate frame 3, and an outrigger cylinder 19 for driving the rear outrigger 18 to rise and fall is connected between the rear outrigger 18 and the intermediate frame 3.

[0035] In practical use, the drive device drives the track 5 to move, moving the tunneling and anchoring machine to the cutting position. The grooving cylinder 4 drives the cutting slide 12 to slide back and forth between the two grooving guide rails 6, thereby causing the cutting part to slide back and forth. During this period, each clamping cylinder 9 is in a depressurized state, and the movable wear-resistant slider 10 does not press against the grooving slider 16. After the cutting part slides into place, each clamping cylinder 9 begins to pressurize and drives the corresponding movable wear-resistant slider 10 to press against the corresponding grooving slider 16, thereby pressing against the cutting part. This avoids gaps between the cutting part and the grooving guide rail 6 during cutting construction, which would aggravate cutting vibration, reduce overall machine vibration, prevent vibration fatigue damage to the equipment, and improve the overall machine life. At the same time, the outrigger mechanism supports the ground during the cutting construction of the tunneling and anchoring machine. Specifically, the outrigger cylinder 19 drives the rear outrigger 18 to swing down, so that the rear outrigger 18 supports the ground. This can balance part of the cutting and grooving counterforce, prevent the tunneling and anchoring machine from backing up, and stabilize the machine body.

[0036] Example 2 The difference from Embodiment 1 is that the outrigger mechanism includes hydraulic outriggers fixed to the rear side of the intermediate frame 3. During the cutting operation of the tunneling and anchoring machine, the hydraulic outriggers extend and directly support the ground, which can also balance part of the counter-thrust force of cutting and trenching, prevent the tunneling and anchoring machine from rolling back, and stabilize the machine body.

[0037] Example 3 like Figure 5 As shown, this embodiment also provides a tunneling and anchoring integrated machine, including a dovetail groove sliding rail type traveling chassis as described in Embodiment 1 or Embodiment 2.

[0038] The dovetail groove sliding rail type chassis is also equipped with a top anchor system 20, a side anchor system 21, a temporary support device 22, an electrical system 23 and a hydraulic system 24. The rear of the dovetail groove sliding rail type chassis is also connected to a scraper conveyor 25.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A dovetail groove sliding rail type chassis, comprising a left track frame, a right track frame, a middle frame, a cutting section, and a grooving cylinder, wherein tracks and drive devices for driving the tracks are mounted on both the left and right track frames, and the left and right track frames are connected together through the middle frame, characterized in that: Both the left and right track frames are fixedly equipped with sliding guide rails along the front-to-back direction. The two slide rails have the same structure and are symmetrically arranged. The slide rail on the left includes a base plate and a side plate that is integrally formed with the base plate and is inclined with the left side lower than the right side. A slide rail with the groove opening facing the right is formed between the base plate and the side plate. Two sliding guide rails form a dovetail groove slide rail structure. The cutting part is slidably installed between the two sliding guide rails in the front-to-back direction. The two ends of the grooving cylinder are respectively connected to the cutting part and the intermediate frame. Both slide rails are equipped with clamping mechanisms for clamping the cutting section.

2. The dovetail groove slide rail type chassis according to claim 1, characterized in that: The clamping mechanism includes several clamping cylinders, a movable wear-resistant slider, and a fixed wear-resistant slider; Each clamping cylinder is fixedly installed on the outer side of the side plate at intervals, and the piston rod of each clamping cylinder passes through the side plate and is slidably connected to the side plate. The movable wear-resistant slider is parallel to the side plate and located at the top of the groove. The front and rear dimensions of the movable wear-resistant slider are the same as those of the side plate. The movable wear-resistant slider is fixedly connected to the piston rod end of each clamping cylinder. The movable wear-resistant slider can clamp the cutting part through each clamping cylinder. The fixed wear-resistant slider is parallel to the base plate and located at the bottom of the groove. The front and rear dimensions of the fixed wear-resistant slider are the same as those of the base plate. The fixed wear-resistant slider is fixedly connected to the top surface of the base plate.

3. The dovetail groove slide rail type chassis according to claim 2, characterized in that: The cutting unit includes a cutting slide, a cutting swing arm hinged on the cutting slide, a swing cylinder connecting the cutting slide and the cutting swing arm, a cutting roller installed on the cutting swing arm, and a cutting reduction motor that drives the cutting roller to rotate and is installed in the cutting swing arm. The left and right sides of the cutting slide are fixedly provided with grooving sliders that are adapted to the slide grooves, and the grooving sliders on both sides are respectively matched and slidably installed in the slide grooves on both sides. The grooving sliders on both sides make sliding friction contact with the corresponding fixed wear-resistant sliders and movable wear-resistant sliders, respectively. The two ends of the grooving cylinder are connected to the cutting slide and the intermediate frame, respectively. The movable wear-resistant sliders on both sides can press the slotted sliders on both sides respectively under the action of the corresponding clamping cylinders.

4. The dovetail groove slide rail type chassis according to claim 2, characterized in that: A protective cover is also installed on the outer side of the side plate, covering each clamping cylinder.

5. The dovetail groove slide rail type chassis according to any one of claims 1-4, characterized in that: The rear side of the intermediate frame is equipped with a support leg mechanism for supporting the ground.

6. The dovetail groove slide rail type chassis according to claim 5, characterized in that: The outrigger mechanism includes a rear outrigger hinged to the rear side of the intermediate frame, and an outrigger cylinder that drives the rear outrigger to rise and fall is connected between the rear outrigger and the intermediate frame.

7. The dovetail groove slide rail type chassis according to claim 5, characterized in that: The outrigger mechanism includes hydraulic outriggers fixed to the rear side of the intermediate frame.

8. A tunneling and anchoring integrated machine, characterized in that: Including the dovetail groove slide rail type chassis as described in any one of claims 1-7.

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