Asphalt production lifting device with lifting frame

Abstract

The utility model relates to the field of lifters, in particular to an asphalt production lifting device with a lifting frame, which comprises a cross beam, a sliding frame and an adjusting lock catch mechanism. The cross beam is arranged between the two rail frames and located above the stock bin, the upper end of the cross beam is fixedly connected with one end of the cable through an anchoring ring, the motor drives the winding drum to rotate to wind and unwind the cable to enable the cross beam to ascend and descend, and sliding frames are fixedly connected to the left end and the right end of the cross beam and provided with pulleys rolling along the surfaces of the rail frames. The lower end of the sliding frame is fixedly connected with a bracket supported at the lower end of the stock bin, the middle cavity is internally provided with adjusting lock catch mechanisms which stretch out and draw back along the guide sleeve, and the side edge of the stock bin is clamped between the adjusting lock catch mechanisms; the sliding frame sliding along the rail frame is adopted to replace an original sliding installation structure fixed to the stock bin, the sliding frame and the stock bin can be directly separated when the stock bin is replaced, assembly and disassembly are more convenient, in addition, a sliding installation structure does not need to be arranged on each stock bin, and manufacturing cost is lower.

Description

Technical Field

[0001] The utility model relates to the field of elevators, in particular to a material lifting device for producing asphalt with a lifting frame. Background Art

[0002] The raw materials for asphalt pavement are asphalt and aggregate mixed in proportion and then paved using paving equipment. The asphalt raw materials need to be heated and melted into liquid form before being mixed with aggregate in the mixing device in the asphalt mixing plant. Therefore, a material elevator is needed to transport the asphalt raw materials in this process.

[0003] Today's material hoists are generally vertically lifted and lowered by using a predetermined track frame in conjunction with a cable reel. The loading platforms or silos used to carry asphalt raw materials are assembled on the track frame using their own pulleys as sliding mounting structures. Depending on the needs of asphalt production, it is sometimes necessary to adjust the single delivery volume of asphalt raw materials. At this time, it is necessary to replace silos of different capacities. When replacing, the sliding mounting structure between the silo and the track frame must be removed first, and installation and removal are relatively troublesome. In addition, pulleys that are compatible with the track frame must be set on each silo or loading platform, which undoubtedly increases the production cost of each silo.

[0004] Therefore, in view of the fact that the above-mentioned existing material hoist is troublesome to replace and install the silo as the single delivery volume is adjusted when transporting asphalt raw materials, and the production cost of each silo is high due to the need to set up a sliding installation structure, an elevator with a disassembly-free slide can be designed to transport asphalt raw materials. Silos of different sizes can be easily installed and disassembled on the slide, and there is no need to set up a sliding installation structure separately on the silo, thereby reducing the production cost of the silo. Utility Model Content

[0005] In order to overcome the problem that the silos used in the existing material elevators for transporting asphalt raw materials are difficult to install and disassemble, and each silo needs to be provided with a sliding installation structure, which has high manufacturing costs.

[0006] The technical solution of the utility model is: a lifting device for producing asphalt with a lifting frame, comprising two track frames arranged symmetrically on the left and right, a motor installed on one side of the track frame, a cable passing through a roller at the top of the track frame and wound on the drum of the motor, a vertically lifting silo, a crossbeam, a slide and an adjustment lock mechanism are arranged between the two track frames; the crossbeam is arranged between the two track frames and above the silo, the upper end of the crossbeam is fixedly connected to one end of the cable through an anchor ring, the motor drives the drum to rotate and retract the cable to make the crossbeam rise and fall, the left and right ends of the beam are fixedly connected to the slide, and a mechanism along the surface of the track frame is installed on the slide The pulley rolls on the surface, and the lower end of the slide is fixedly connected to a bracket supported on the lower end of the silo. A middle cavity is provided in the middle of the slide, and two guide sleeves are provided at the front and rear ends of the slide. The guide sleeves are hollow structures and are connected with the middle cavity. An adjusting lock mechanism that extends and retracts along the guide sleeve is installed in the middle cavity. The side edges of the silo are clamped between the adjusting lock mechanisms. Two slide rails are symmetrically arranged above the silo, and a dust cover with a folding structure is slidably installed between the two slide rails. A lifting and lowering unit is installed between the slide rails and the crossbeam. The lifting and lowering unit drives the slide rail to fall and rest against the upper edge of the silo. A lamp tube for illuminating the silo is embedded in the lower end of the crossbeam.

[0007] Preferably, the lifting frame composed of the crossbeam and the slide is installed between the two track frames through the pulley sliding, and then one end of the cable is fixedly connected to the anchor ring on the crossbeam, and the motor drives the drum to rotate, and the cable is released to make the silo fall to a lower place, and then the silo is horizontally installed between the two slides, and the adjustment lock mechanism is started to clamp and lock the side edge of the silo to limit the forward and backward sliding of the silo. Under the auxiliary lighting of the lamp tube, the asphalt raw material is put into the silo, and then the lifting and lowering unit is started to control the slide rail to move longitudinally downward and squeeze at the upper edge of the silo, compressing and locking the silo to avoid the up and down vibration of the silo during vertical transportation. At the same time, the dust cover is slid back and forth along the slide rail to stretch and cover the silo to prevent dust in the asphalt raw material from scattering. The motor drives the drum to rotate and reel in the cable to lift the silo to a high place.

[0008] Preferably, the adjustment locking mechanism includes a connecting frame, a guide frame, a clamping plate, a screw shaft, a rotating motor, a bracket and a screw sleeve; two connecting frames facing each other are arranged in the same middle cavity, two guide frames are fixed on the connecting frame and the guide frames pass through the corresponding guide sleeves, a rotatable clamping plate is installed at the end of the guide frame, the clamping plate is against the side edge of the hopper, a screw shaft is arranged in the middle cavity, the screw shaft is movably connected to the slide through a rotating shaft, a rotating motor connected to the screw shaft by a transmission shaft is fixedly installed at the front end of the slide, a bracket is fixedly connected to the connecting frame, a screw sleeve is fixedly connected to the upper end of the bracket, the front and rear clamping plates facing each other on the side edge of the hopper form a limit lock to prevent the hopper from sliding back and forth and falling out of the outside of the slide, and the two guide frames on the same side are connected by the connecting frame to form an overall structure for synchronous movement.

[0009] Preferably, external threads in opposite directions are arranged on the front and rear of the same screw shaft, and an internal thread that matches the screw shaft is arranged on the screw sleeve. The rotary motor drives the screw shaft to rotate, and the two screw sleeves move in opposite directions along the screw shaft. During the process of driving the screw shaft to rotate by the rotary motor, the two screw sleeves above move relative to or oppositely due to the rotation of the external threads in different directions, driving the front and rear relative clamping plates to adjust the spacing to adapt to silos of different external sizes.

[0010] Preferably, the lifting and lowering unit is a cylinder; there are two groups of cylinders which are symmetrically installed at the lower end of the beam. The piston rod of the cylinder is fixedly connected to the corresponding slide rail below and drives the slide rail to rise and fall vertically. The cylinder controls the movement of the slide rail by longitudinally extending the piston rod. When the asphalt raw material is placed, the slide rail is kept close to the beam, and the upper part of the silo is opened. After the asphalt raw material is placed, the slide rail drives the dust cover to move down and cover the silo to prevent the asphalt raw material powder from floating out.

[0011] Preferably, the lifting and lowering unit includes a linear motor and a hanger; the linear motor is composed of a movable track platform and a movable mechanism, and a hanger is fixedly connected between the movable mechanism and the corresponding slide rail below. The movable mechanism moves vertically along the movable track platform and drives the slide rail to rise and fall vertically. The slide rail is controlled to rise and fall by the movable mechanism moving along the movable track platform. When the asphalt raw material is put in, the slide rail is kept close to the crossbeam, and the upper part of the silo is opened. After the asphalt raw material is put in, the slide rail drives the dust cover to move down and cover the silo to prevent the asphalt raw material powder from floating out.

[0012] Preferably, the end of the guide frame is fixedly connected to a limit plate below the card plate, and the upper end of the guide frame is fixedly connected to a sliding box with a built-in T-notch, and a corresponding locking plate is slidably connected in the sliding box. The limit plate plays a supporting role below the card plate to prevent the limit plate from rotating downward and disengaging from the side edge of the silo. The locking plate moves along the sliding box and extends to the top of the card plate, locking the card plate to prevent the card plate from rotating upward and disengaging from the side edge of the silo.

[0013] Preferably, the locking plate has a pin hole in the middle, and a pin shaft passing through the pin hole is fixedly connected to the sliding box. A spring sleeved on the pin shaft is installed between the locking plate and the inner wall of the sliding box. Through the setting of the spring, the locking plate can be automatically pushed out from the sliding box and remain on the card plate. When the silo needs to be removed, the locking plate can be pressed back into the sliding box.

[0014] Beneficial effects of the utility model:

[0015] 1. Based on the original elevator, a slide that slides along the track frame is used to replace the sliding installation structure originally fixed on the silo. When replacing the silo, the slide can be directly separated from the silo, which is more convenient for installation and removal. In addition, there is no need to set a sliding installation structure on each silo, which reduces the production cost.

[0016] 2. Use the liftable dust covers installed on the beams and silos to prevent the raw materials from being scattered by the wind during the vertical transportation of asphalt raw materials, thereby reducing the possibility of dust generation;

[0017] 3. The rotatable locking plate is used as the front and rear clamping structure of the silo, so that the silo can be installed and disassembled by sliding forward and backward, which is simple and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the asphalt production lifting device with a lifting frame of the present invention;

[0019] Figure 2 Shown is a schematic diagram of the front structure of the asphalt production lifting device with a lifting frame of the present invention;

[0020] Figure 3 Shown is a schematic diagram of the three-dimensional structure of the carriage of the asphalt production lifting device with a lifting frame of the present invention;

[0021] Figure 4 Shown is a schematic diagram of the three-dimensional structure of the adjusting locking mechanism of the asphalt lifting device with a lifting frame of the present invention;

[0022] Figure 5 Shown is a partially enlarged three-dimensional structural schematic diagram of position A of the asphalt production material raising device with a lifting frame of the present invention;

[0023] Figure 6 Shown is a schematic diagram of the three-dimensional structure of a first embodiment of a lifting unit of a material lifting device for producing asphalt with a lifting frame according to the present invention;

[0024] Figure 7 Shown is a front structural schematic diagram of a first embodiment of a lifting unit of a lifting device for producing asphalt with a lifting frame according to the present invention;

[0025] Figure 8 Shown is a schematic diagram of the three-dimensional structure of a lifting unit of a lifting device for producing asphalt with a lifting frame according to a second embodiment of the present invention;

[0026] Figure 9 Shown is a front structural schematic diagram of a second embodiment of a lifting unit of a lifting device for producing asphalt with a lifting frame according to the present invention.

[0027] Explanation of the accompanying symbols: 1. Track frame; 2. Motor; 3. Cable; 4. Silo; 5. Crossbeam; 6. Slide; 7. Pulley; 8. Bracket; 9. Middle cavity; 10. Guide sleeve; 11. Connecting frame; 12. Guide frame; 13. Clamp; 14. Screw shaft; 15. Rotating motor; 16. Bracket; 17. Screw sleeve; 18. Slide rail; 19. Dust cover; 21. Limit plate; 22. Slide box; 23. Locking plate; 24. Spring; 25. Lamp tube; 2001. Cylinder; 2002. Linear motor; 2003. Hanger. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] See also Figures 1-9The utility model provides a lifting device for producing asphalt with a lifting frame, which includes two track frames 1 arranged symmetrically on the left and right, a motor 2 installed on one side of the track frame 1, a cable 3 passing through a roller at the top of the track frame 1 and wound around the drum of the motor 2, and a vertically lifting silo 4, a crossbeam 5, a slide 6 and an adjustment lock mechanism are arranged between the two track frames 1; the crossbeam 5 is arranged between the two track frames 1 and above the silo 4, the upper end of the crossbeam 5 is fixedly connected to one end of the cable 3 through an anchor ring, and the motor 2 drives the drum to rotate to retract and release the cable 3 so that the crossbeam 5 lifting, the left and right ends of the crossbeam 5 are fixedly connected to the slide 6, the slide 6 is equipped with a pulley 7 that rolls along the surface of the track frame 1, the lower end of the slide 6 is fixedly connected to the bracket 8 supported on the lower end of the silo 4, a middle cavity 9 is provided in the middle of the slide 6, and two guide sleeves 10 are provided at the front and rear ends of the slide 6. The guide sleeve 10 is a hollow structure and is connected to the middle cavity 9. An adjustment lock mechanism that telescopes in and out along the guide sleeve 10 is installed in the middle cavity 9. The side edge of the silo 4 is clamped between the adjustment lock mechanisms. Two slide rails 18 are symmetrically provided on the left and right sides of the silo 4. The two slide rails 18 slide between them. A dust cover 19 with a hinged structure is installed. A lifting unit is installed between the slide rail 18 and the crossbeam 5. The lifting unit drives the slide rail 18 to fall and rest against the upper edge of the silo 4. A lamp 25 for illuminating the silo 4 is embedded in the lower end of the crossbeam 5. The lifting frame composed of the crossbeam 5 and the slide 6 is slidably installed between the two track frames 1 through the pulley 7. One end of the cable 3 is fixedly connected to the anchor ring on the crossbeam 5. The motor 2 drives the drum to rotate, unwinding the cable 3, causing the silo 4 to fall to a lower place. The silo 4 is then horizontally installed between the two slides 6. Start the adjustment locking mechanism to clamp and lock the side edge of the silo 4 to limit the forward and backward sliding of the silo 4. Under the auxiliary lighting of the lamp 25, the asphalt raw material is put into the silo 4. Then start the lifting and lowering unit to control the slide rail 18 to move downward longitudinally and squeeze the upper edge of the silo 4 to compress and lock the silo 4 to prevent the silo 4 from vibrating up and down during vertical transportation. At the same time, slide the dust cover 19 back and forth along the slide rail 18 to cover the silo 4 to prevent the dust in the asphalt raw material from scattering. The motor 2 drives the drum to rotate and reel in the cable 3 to lift the silo 4 to a higher place.

[0030] See also Figures 1-4, the adjusting lock mechanism includes a connecting frame 11, a guide frame 12, a card plate 13, a screw shaft 14, a rotating motor 15, a bracket 16 and a screw sleeve 17; two connecting frames 11 opposite to each other are provided in the same middle cavity 9, and two guide frames 12 are fixed on the connecting frame 11 and the guide frames 12 pass through the corresponding guide sleeves 10. A rotatable card plate 13 is installed at the end of the guide frame 12, and the card plate 13 rests on the side edge of the silo 4. A screw shaft 14 is provided in the middle cavity 9, and the screw shaft 14 is movably connected to the slide 6 through a rotating shaft. A rotating motor 15 connected to the drive shaft and the screw shaft 14 is fixedly installed at the front end of the slide 6. A bracket 16 is fixedly connected to the connecting frame 11, and a screw sleeve 17 is fixedly connected to the upper end of the bracket 16. The front and rear opposite card plates 13 are clamped and locked to form a limit on the side edge of the silo 4 to prevent the silo 4 from sliding back and forth and coming out of the slide 6. The two guide frames 12 are connected by the connecting frame 11 to form an overall structure for synchronous movement. The same screw shaft 14 is relatively provided with external threads in opposite directions in the front and back, and the screw sleeve 17 is provided with an internal thread adapted to the screw shaft 14. The rotating motor 15 drives the screw shaft 14 to rotate, and the two screw sleeves 17 move in opposite directions along the screw shaft 14. During the process of the rotating motor 15 driving the screw shaft 14 to rotate, the two screw sleeves 17 above move relative to or oppositely due to the rotation of the external threads in different directions, driving the front and rear relative card plates 13 to adjust the spacing to adapt to the different outer sizes of the silo 4. In actual application, the horizontal cylinder 2001 can also be used to drive instead of the rotating motor 15 and the screw shaft 14, so that the horizontal cylinder 2001 is installed in the middle cavity 9 to push the connecting frame 11 to slide horizontally back and forth, and control the card plate 13 to rest against the side edge of the silo 4, which can also achieve the same effect.

[0031] See also Figure 4-Figure 5 The locking plate 23 is fixedly connected to the slide box 22 at the end thereof, and a spring 24 is mounted on the pin shaft between the locking plate 23 and the inner wall of the slide box 22. The locking plate 23 can be automatically ejected from the slide box 22 and kept on the card plate 13 by the setting of the spring 24. When the material bin 4 needs to be removed, the locking plate 23 is pressed back into the slide box 22.

[0032] See also Figure 6-Figure 7In this embodiment, the lifting and lowering unit is a cylinder 2001; the cylinder 2001 has two groups and is symmetrically installed at the lower end of the beam 5. The piston rod of the cylinder 2001 is fixedly connected to the corresponding slide rail 18 below and drives the slide rail 18 to rise and fall vertically. The cylinder 2001 controls the movement of the slide rail 18 by longitudinally extending the piston rod. When the asphalt raw material is put in, the slide rail 18 is kept close to the position of the beam 5, and the upper part of the silo 4 is opened. After the asphalt raw material is put in, the slide rail 18 drives the dust cover 19 to move down and cover the silo 4 to prevent the asphalt raw material powder from floating out.

[0033] See also Figure 8-Figure 9 In this embodiment, the lifting and lowering unit includes a linear motor 2002 and a hanger 2003; the linear motor 2002 is composed of a movable track platform and a movable mechanism, and the hanger 2003 is fixedly connected between the movable mechanism and the corresponding slide rail 18 below. The movable mechanism moves vertically along the movable track platform and drives the slide rail 18 to rise and fall vertically. The slide rail 18 is controlled to rise and fall by the movable mechanism moving along the movable track platform. When the asphalt raw material is put in, the slide rail 18 is kept close to the position of the beam 5, and the upper part of the silo 4 is opened. After the asphalt raw material is put in, the slide rail 18 drives the dust cover 19 to move down and cover the silo 4 to prevent the asphalt raw material powder from floating out.

[0034] Through the above steps, on the basis of the original elevator, a slide 6 that slides along the track frame 1 is used to replace the sliding mounting structure originally fixed on the silo 4. When replacing the silo 4, the slide 6 can be directly separated from the silo 4, which is more convenient to install and disassemble. In addition, there is no need to set a sliding mounting structure on each silo 4, and the production cost is lower, so as to solve the problem that the silo 4 used in the existing material elevator for transporting asphalt raw materials is difficult to install and disassemble, and the production cost is high if a sliding mounting structure is required for each silo 4.

Claims

1. A lifting device for producing asphalt with a lifting frame, comprising two track frames (1) arranged symmetrically on both sides, a motor (2) installed on one side of the track frame (1), a cable (3) passing through a roller at the top of the track frame (1) and wound around a drum of the motor (2), and a vertically lifting silo (4) arranged between the two track frames (1); characterized in that: The invention also includes a crossbeam (5), a slide (6) and an adjustment lock mechanism; the crossbeam (5) is arranged between the two track frames (1) and above the silo (4); the upper end of the crossbeam (5) is fixedly connected to one end of the cable (3) through an anchor ring; the motor (2) drives the drum to rotate and retract the cable (3) to make the crossbeam (5) rise and fall; the left and right ends of the crossbeam (5) are fixedly connected to the slide (6); the slide (6) is equipped with a pulley (7) that rolls along the surface of the track frame (1); the lower end of the slide (6) is fixedly connected to a bracket (8) supported on the lower end of the silo (4); a middle cavity (9) is provided in the middle of the slide (6); and the front and rear ends of the slide (6) are each provided with a Two guide sleeves (10) are provided. The guide sleeves (10) are hollow and communicate with the middle cavity (9). An adjusting lock mechanism is installed in the middle cavity (9) and can be extended and retracted along the guide sleeves (10). The side edges of the silo (4) are clamped between the adjusting lock mechanisms. Two slide rails (18) are symmetrically arranged above the silo (4). A dust cover (19) with a hinge structure is slidably installed between the two slide rails (18). A lifting unit is installed between the slide rails (18) and the crossbeam (5). The lifting unit drives the slide rails (18) to fall and abut against the upper edge of the silo (4). A lamp tube (25) for illuminating the silo (4) is embedded in the lower end of the crossbeam (5).

2. The asphalt raising device with a lifting frame according to claim 1, characterized in that: The adjusting lock mechanism comprises a connecting frame (11), a guide frame (12), a card plate (13), a screw shaft (14), a rotating motor (15), a bracket (16) and a screw sleeve (17); two connecting frames (11) facing each other are arranged in the same middle cavity (9); two guide frames (12) are fixed on the connecting frame (11) and the guide frames (12) pass through the corresponding guide sleeves (10); a rotatable card plate (13) is installed at the end of the guide frame (12); the card plate (13) abuts against the side edge of the silo (4); a screw shaft (14) is arranged in the middle cavity (9); the screw shaft (14) is movably connected to the slide (6) through a rotating shaft; a rotating motor (15) connected to the screw shaft (14) by a transmission shaft is fixedly installed at the front end of the slide (6); a bracket (16) is fixedly connected to the connecting frame (11); and a screw sleeve (17) sleeved on the screw shaft (14) is fixedly connected to the upper end of the bracket (16).

3. The asphalt raising device with a lifting frame according to claim 2, characterized in that: The same screw shaft (14) is provided with external threads in opposite directions at the front and rear, and the screw sleeve (17) is provided with an internal thread adapted to the screw shaft (14). The rotary motor (15) drives the screw shaft (14) to rotate, and the two screw sleeves (17) move in opposite or reverse directions along the screw shaft (14).

4. The asphalt raising device with a lifting frame according to claim 1, characterized in that: The lifting and lowering unit is a cylinder (2001); the cylinder (2001) has two groups and is symmetrically installed at the lower end of the beam (5); the piston rod of the cylinder (2001) is fixedly connected to the corresponding slide rail (18) below and drives the slide rail (18) to rise and fall vertically.

5. The asphalt raising device with a lifting frame according to claim 1, characterized in that: The lifting and lowering unit comprises a linear motor (2002) and a hanger (2003); the linear motor (2002) is composed of a movable track platform and a moving mechanism, the hanger (2003) is fixedly connected between the moving mechanism and the corresponding slide rail (18) below, and the moving mechanism moves vertically along the movable track platform and drives the slide rail (18) to rise and fall vertically.

6. The asphalt raising device with a lifting frame according to claim 2, characterized in that: The end of the guide frame (12) is fixedly connected to a limit plate (21) located below the clamping plate (13); the upper end of the guide frame (12) is fixedly connected to a sliding box (22) with a T-shaped notch therein; and a matching locking plate (23) is slidably connected inside the sliding box (22).

7. The asphalt raising device with a lifting frame according to claim 6, characterized in that: The locking plate (23) has a pin hole in the middle, and a pin shaft passing through the pin hole is fixedly connected to the sliding box (22). A spring (24) sleeved on the pin shaft is installed between the locking plate (23) and the inner wall of the sliding box (22).

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