An anti-freezing device for the bottom of a coal-carrying open car

Abstract

The present invention discloses an anti-freezing device for the bottom of a coal transport open car compartment. The device uses a cam to support a supporting bottom plate to generate up and down vibrations, and cooperates with the up and down movement of a piston to cause an air bag to expand and contract, thereby repeatedly vibrating and falling off the frozen coal stuck on the supporting bottom plate. The device is characterized in that a plurality of limit plates are equidistantly arranged on a fixed base, two adjacent limit plates form a cavity, a middle portion of the limit plate is provided with a clearance groove, a plurality of connecting shafts are placed on a fixed seat, the connecting shafts are correspondingly located inside the cavity, a transmission gear is provided in the middle portion of the connecting shaft, the plurality of transmission gears are connected by a transmission chain to form a transmission relationship, the transmission chain is located inside the clearance groove, a group of cams is placed on the connecting shaft, a group of cams consists of at least four cams, the deflection angles of the cams in the same group are the same, and the deflection angles of the cams in multiple groups increase progressively.

Description

Technical Field

[0001] The present invention relates to a device for preventing the floor of a coal-carriageway car from freezing, belonging to the technical field of coking coal unloading equipment. Specifically, the device involves a cam supporting a support floor to generate up-and-down vibrations, which, in conjunction with the up-and-down movement of a piston, causes an airbag to expand and contract, thereby repeatedly vibrating away frozen coal stuck to the support floor. Background Art

[0002] At present, in order to avoid the coal dust in the open cars of coal transport trains, the coal in the open cars is generally sprayed with water. However, due to the generally low temperature in winter, the coal blocks are easily frozen at the bottom of the open cars of coal transport trains, causing the coal blocks to stick and condense on the bottom of the car. When unloading coal, the coal blocks near the bottom of the car cannot fall normally, affecting the coal unloading work. Traditionally, workers usually need to use excavators to clean, or use jackhammers and shovels to hammer and break the frozen blocks, which is time-consuming and labor-intensive, and the crushing efficiency is low. The prior art announcement number CN208594787U discloses a thawing shed for the open car of a train. The technical solution is: on both sides and above the train track, there are 200 pieces of thaw sheds for the open cars of coal transport trains. Color steel tiles are built on one side of the train track, and the color steel tiles on one side of the train track are fixed on the column foundation. A hanging curtain is provided between the color steel tiles on the other side of the train track and the ground where the train track is located. The color steel tiles and hanging curtains built on both sides and above the train track constitute a thawing shed. A plurality of steam pipes are provided in the thawing shed, and a plurality of steam nozzles connected to the steam pipes are provided on both sides of the train track in the thawing shed. The jet direction of the steam nozzle is toward the side and bottom of the train. However, this steam thawing method will cause the moisture content in the coal mine to be too high, affecting subsequent processing. Secondly, a large amount of water vapor will remain on the bottom plate of the carriage after thawing. The thawed coal blocks need to be dumped immediately to avoid secondary freezing after thawing. Summary of the Invention

[0003] In order to improve the above situation, the present invention provides an anti-freezing device for the bottom of a coal transport open car compartment, which provides an anti-freezing device that uses a cam to support the bottom plate to generate up and down vibrations, and cooperates with the up and down movement of the piston to cause the air bag to expand and contract, thereby repeatedly vibrating off the frozen coal stuck on the supporting bottom plate.

[0004] The present invention provides an anti-freezing device for the bottom of a coal transport open car compartment as follows: The present invention provides an anti-freezing device for the bottom of a coal transport open car compartment as follows: The anti-freezing device consists of a fixed base, a limit plate, a support bottom plate, a connecting shaft, a cam, a pressure block, a support spring, a side baffle, a ventilation channel, an air bag, an air pressure chamber, a piston, a return spring, a transmission gear, a transmission chain and a clearance groove. A plurality of limit plates are equidistantly placed on the fixed base, and two adjacent limit plates form a cavity. A clearance groove is provided in the middle of the limit plate. A plurality of connecting shafts are placed on the fixed seat, and the connecting shafts are correspondingly located inside the cavity. A transmission gear is provided in the middle of the connecting shaft. The plurality of transmission gears are connected by a transmission chain to form a transmission relationship. The transmission chain is located inside the clearance groove. A group of cams is placed on the connecting shaft. A group of cams consists of at least four cams. The cams in the same group have the same deflection angle. Multiple groups of The cam has a deflection angle that increases, and the support base is placed on the fixed base through a support spring and suspended on the cavity, and the two side baffles are respectively placed on both sides of the support base, and a groove is opened at the bottom of the support base, and the groove extends from one end of the support base to the other end, and the pressure block is correspondingly placed in the groove, and a return spring is provided between the pressure block and the bottom of the groove, and the pressure block and the cam of the same group are supported correspondingly, and an air pressure cavity is opened inside the support base, and the air pressure cavity extends from one end of the support base to the other end, and the piston is correspondingly placed in the air pressure cavity, and the piston and the pressure block are connected by multiple connecting rods, and multiple air bags are placed on the top of the support base, and the air bag extends from one end of the support base to the other end, and the air bag and the air pressure cavity are connected through a ventilation channel, and a sealing gasket is placed on the pressure block, and the two adjacent side baffles fit together, and the air bag is a hemispherical air bag. Beneficial effects

[0005] 1. It can vibrate and thaw the frozen coal under the car, and shake off the frozen and stuck coal blocks, saving time and effort.

[0006] 2. It can separate the frozen coal from the bottom plate by vibration without generating water vapor to cause secondary freezing.

[0007] 3. It can assist in vibrating and cleaning coal when turning coal, so as to avoid coal residue remaining on the bottom of the carriage.

[0008] 4. Simple structure, convenient and practical.

[0009] 5. Low cost and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic structural diagram of an anti-freezing device for the bottom of a coal open car compartment according to the present invention;

[0011] Figure 2 A schematic structural diagram of a support bottom plate of an anti-freezing device for the bottom of a coal open car compartment according to the present invention;

[0012] Figure 3 A three-dimensional structural diagram of the support floor of an anti-freezing device for a coal open car compartment according to the present invention, which only shows the transmission structure at the bottom of a single support floor;

[0013] Figure 4 A three-dimensional structural diagram of a fixed base of an anti-freezing device for the bottom of a coal open car compartment according to the present invention.

[0014] Attached photos

[0015] The components include: a carriage bottom (1), a fixed base (2), a limit plate (3), a support base (4), a connecting shaft (5), a cam (6), a pressure block (7), a support spring (8), a side baffle (9), a ventilation channel (10), an air bag (11), an air pressure chamber (12), a piston (13), a return spring (14), a transmission gear (15), a transmission chain (16), and a clearance groove (17). DETAILED DESCRIPTION

[0016] The present invention provides an anti-freezing device for the bottom of a coal transport open car compartment as follows: The present invention provides an anti-freezing device for the bottom of a coal transport open car compartment as follows: The anti-freezing device comprises a fixed base (2), a limit plate (3), a support base plate (4), a connecting shaft (5), a cam (6), a pressure block (7), a support spring (8), a side baffle (9), a ventilation channel (10), an air bag (11), an air pressure chamber (12), a piston (13), a return spring (14), a transmission gear (15), a transmission chain (16) and a clearance groove (17), wherein a plurality of limit plates (3) are equidistantly placed on the fixed base (2), and two adjacent limit plates (3) are equidistantly placed on the fixed base (2). The limiting plate (3) forms a cavity, a middle portion of the limiting plate (3) is provided with a clearance groove (17), a plurality of connecting shafts (5) are placed on a fixed seat, the connecting shafts (5) are correspondingly located inside the cavity, a transmission gear (15) is placed in the middle portion of the connecting shaft (5), the plurality of transmission gears (15) are connected by a transmission chain (16), and a transmission relationship is formed, the transmission chain (16) is located inside the clearance groove (17), a group of cams (6) is placed on the connecting shaft (5), a group of cams (6) is composed of at least four cams (6), and the deflection angles of the cams (6) in the same group are the same. The deflection angles of the cams (6) of the plurality of groups are increased. The support base (4) is placed on the fixed base (2) through the support spring (8) and is suspended on the cavity. The two side baffles (9) are respectively placed on both sides of the support base (4). The bottom of the support base (4) is provided with a groove, and the groove extends from one end to the other end of the support base (4). The pressure block (7) is correspondingly placed inside the groove. A return spring (14) is provided between the pressure block (7) and the bottom of the groove. The pressure block (7) and the cams (6) of the same group are supported in correspondence. The interior of the support base (4) is provided with an air pressure cavity (14). 2), the air pressure chamber (12) extends from one end of the support base plate (4) to the other end, the piston (13) is correspondingly placed inside the air pressure chamber (12), the piston (13) and the pressure block (7) are connected by multiple connecting rods, multiple air bags (11) are placed on the top of the support base plate (4), the air bags (11) extend from one end of the support base plate (4) to the other end, the air bags (11) and the air pressure chamber (12) are connected through the ventilation channel (10), a sealing gasket is placed on the pressure block (7), two adjacent side baffles (9) are fitted together, and the air bags (11) are hemispherical air bags;

[0017] When in use, the fixed base (2) is installed on the bottom (1) of the open car as the bottom plate of the open car. When the coal on the bottom (1) of the car freezes and sticks to the supporting bottom plate (4), the external driving device is connected to the connecting shaft (5), so that the connecting shaft (5) rotates. Since each group of connecting shafts (5) is driven by the transmission gear (15) and the transmission chain (16), multiple groups of connecting shafts (5) rotate at the same time, thereby driving the cam (6) on the connecting shaft (5) to rotate. The cam (6) rotates to support the bottom of the support base plate (4), causing it to vibrate up and down. At the same time, the cam (6) will trigger the pressure block (7) to contract when supporting the support base plate (4), thereby squeezing the piston (13) connected to one end of the pressure block (7), squeezing the gas in its air pressure chamber (12) to the air bag (11), and causing the air bag (11) on the surface of the support base plate (4) to expand from a flat state, thereby repeatedly vibrating the frozen coal on the support base plate (4) off;

[0018] A design in which a group of the cams (6) is composed of at least four cams (6) can increase the supporting force of the cams (6) on the supporting base plate (4) by increasing the number of the cams (6). At the same time, the cams (6) in the same group are evenly distributed, so that the supporting base plate (4) is subjected to uniform force, thereby preventing the supporting base plate (4) from deflecting.

[0019] Since the volume of the coal mine residue is small, it is easy to fall into the gap between adjacent side baffles (9) during transportation, and then freeze on the side wall of the side baffle (9), so that the adjacent side baffles (9) are bonded together. In the present invention, the two adjacent side baffles (9) are fitted together, which can avoid leaving a gap between the two adjacent side baffles (9), thereby preventing the coal mine residue from falling into the gap and affecting the relative movement between the side baffles (9);

[0020] The design of the deflection angles of the multiple groups of cams (6) increasing in degree can make the supporting base plates (4) corresponding to the multiple groups of cams (6) form relative motion, thereby vibrating the bonded coal with different amplitudes to cause the coal to vibrate and separate;

[0021] The airbag (11) is designed as a hemispherical airbag, which can change the contact between the airbag (11) and the frozen coal from surface contact to line contact, and the ventilation channel (10) corresponding to each airbag (11) has a different length, so that the inflation time of the multiple airbags (11) is different, and the frozen coal can be gradually vibrated and supported;

[0022] The connecting shaft (5), cam (6) and supporting base plate (4) are designed to cooperate with each other. When in use, the cam (6) rotates eccentrically, thereby supporting the supporting base plate (4), so that the supporting base plate (4) overcomes the elastic stress of the supporting spring (8) and moves up and down. Since the deflection angles of the multiple groups of cams (6) increase by 72 degrees, the multiple supporting base plates (4) form dislocation movement, and the frozen coal on the top of the supporting base plate (4) is vibrated to break the ice.

[0023] The cam (6), the pressure block (7), the piston (13) and the air bag (11) are designed to cooperate with each other. When in use, the cam (6) supports the pressure block (7) when rotating, so that the pressure block (7) overcomes the elastic stress of the return spring (14) and moves toward the inside of the groove. At the same time, the piston (13) is driven by the connecting rod to move inside the air pressure chamber (12), and the air inside the air pressure chamber (12) is pressed into the air bag (11) through the ventilation channel (10), so that the air bag (11) swells. When the cam (6) continues to rotate, the pressure block (7) is reset under the drive of the return spring (14), so that the gas inside the air bag (11) returns to the inside of the air pressure chamber (12), and the air bag (11) is flattened, thereby vibrating and shedding the frozen coal on the top of the supporting bottom plate (4);

[0024] The cam (6) supports the supporting base plate (4) to generate up and down vibrations, and the piston (13) moves up and down to make the air bag (11) expand and contract, thereby repeatedly vibrating off the frozen coal stuck on the supporting base plate (4).

Claims

1. An anti-freezing device for the bottom of a coal open car compartment, characterized by: The invention is composed of a fixed base, a limit plate, a support base plate, a connecting shaft, a cam, a pressure block, a support spring, a side baffle, a ventilation channel, an air bag, an air pressure chamber, a piston, a return spring, a transmission gear, a transmission chain and a clearance groove. A plurality of limit plates are equidistantly placed on the fixed base, two adjacent limit plates form a cavity, a clearance groove is opened in the middle of the limit plate, a plurality of connecting shafts are placed on the fixed seat, the connecting shafts are correspondingly located inside the cavity, a transmission gear is placed in the middle of the connecting shaft, and the plurality of transmission gears are connected by a transmission chain to form a transmission relationship, the transmission chain is located inside the clearance groove, a group of cams are placed on the connecting shaft, the support base plate is placed on the fixed base through a support spring, and is suspended on On the cavity, two side baffles are respectively placed on both sides of the supporting base plate, and a groove is opened at the bottom of the supporting base plate, and the groove extends from one end of the supporting base plate to the other end, and the pressure block is correspondingly placed inside the groove, and a return spring is provided between the pressure block and the bottom of the groove, and the pressure block and the cam of the same group are supported correspondingly, and an air pressure chamber is opened inside the supporting base plate, and the air pressure chamber extends from one end of the supporting base plate to the other end, and the piston is correspondingly placed inside the air pressure chamber, and the piston and the pressure block are connected by multiple connecting rods, and multiple air bags are placed on the top of the supporting base plate, and the air bag extends from one end of the supporting base plate to the other end, and the air bag and the air pressure chamber are connected through a ventilation channel, and the two adjacent side baffles are in contact with each other.

2. The anti-freezing device for the bottom of a coal open car according to claim 1 is characterized in that The cam supports the support base plate to generate up and down vibrations, and the piston moves up and down to make the air bag expand and contract, thereby repeatedly vibrating off the frozen coal stuck on the support base plate.

3. The anti-freezing device for the bottom of a coal open car according to claim 2 is characterized in that A group of cams consists of at least four cams, and the cams in the same group have the same deflection angle.

4. The anti-freezing device for the bottom of a coal open car according to claim 3 is characterized in that The deflection angles of the plurality of groups of cams are increased.

5. The anti-freezing device for the bottom of a coal open car according to claim 1 is characterized in that The two adjacent side baffles fit together, which can avoid leaving a gap between the two adjacent side baffles, thereby preventing coal mine residues from falling into the gap and affecting the relative movement between the side baffles.

6. The anti-freezing device for the bottom of a coal open car according to claim 1 is characterized in that The airbag is a hemispherical airbag.

7. The anti-freezing device for the bottom of a coal open car according to claim 6 is characterized in that The contact between the airbag and the frozen coal changes from surface contact to line contact, and the ventilation channel corresponding to each airbag has a different length, so that the inflation time of multiple airbags is different, and the frozen coal can be gradually vibrated and supported.

8. The anti-freezing device for the bottom of a coal open car according to claim 1 is characterized in that A sealing gasket is arranged on the pressing block.

9. The anti-freezing device for the bottom of a coal open car according to claim 1 is characterized in that The connecting shaft, cam and support base plate are designed to cooperate with each other. When in use, the cam rotates eccentrically to support the support base plate, so that the support base plate overcomes the elastic stress of the support spring and moves up and down. Since the deflection angles of multiple groups of cams increase by 72 degrees, multiple support base plates form staggered movements, thereby vibrating and thawing the frozen coal on the top of the support base plate.

10. The anti-freezing device for the bottom of a coal open car according to claim 9, characterized in that The cam, pressure block, piston and airbag are designed to cooperate with each other. When in use, the cam supports the pressure block during rotation, so that the pressure block overcomes the elastic stress of the return spring and moves toward the inside of the groove. At the same time, the piston is driven to move inside the air pressure chamber through the connecting rod, and the air inside the air pressure chamber is pressed into the airbag through the ventilation channel, causing the airbag to swell. When the cam continues to rotate, the pressure block is reset by the return spring, so that the gas inside the airbag returns to the inside of the air pressure chamber, and the airbag deflates, thereby vibrating and removing the frozen coal on the top of the supporting base plate.

Images