CN109958436B - Spray water system in telescopic part of heading machine - Google Patents
Spray water system in telescopic part of heading machine Download PDFInfo
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- CN109958436B CN109958436B CN201910388904.9A CN201910388904A CN109958436B CN 109958436 B CN109958436 B CN 109958436B CN 201910388904 A CN201910388904 A CN 201910388904A CN 109958436 B CN109958436 B CN 109958436B
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- seal
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 220
- 239000007921 spray Substances 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 150
- 125000006850 spacer group Chemical group 0.000 claims abstract description 48
- 238000005507 spraying Methods 0.000 claims abstract description 40
- 230000003068 static effect Effects 0.000 claims abstract description 35
- 239000010425 asbestos Substances 0.000 claims abstract description 11
- 238000012856 packing Methods 0.000 claims abstract description 11
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 11
- 230000002457 bidirectional effect Effects 0.000 claims 1
- 230000005641 tunneling Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
- E21C35/23—Distribution of spraying-fluids in rotating cutter-heads
Abstract
A spray water system in a telescopic part of a heading machine comprises a water inlet pipe, a telescopic protection cylinder, a positioning pin, a rotary sealing device, a water spacer, an overflow groove, a spacer, an asbestos packing, a floating sealing frame, an overflow hole, a cutting head overflow hole, a telescopic inner cylinder, a telescopic outer cylinder, a static seal, a main shaft, a water storage cavity, a cutting head, a water spraying hole, a nozzle, a water inlet sealing component, a bearing and a telescopic inner cylinder end part; the front end of the water inlet pipe is connected with a through hole on the floating sealing frame through an O-shaped ring; the middle part of the main shaft is sealed with the spacer bush through a static sealing ring and a rotary sealing ring, the end part of the telescopic inner cylinder is connected with the floating sealing seat through a water seal and a floating sealing oil cavity, the rear part of the cutting head is provided with a cutting head overflow hole, and the front part of the cutting head is internally provided with a water storage cavity. The invention has the advantages that: the phenomenon that the oil-water mixing equipment is damaged due to water leakage is solved, so that a user can use the internal spraying water system without damage to the equipment.
Description
Technical Field
The invention relates to the field of components of heading machines, in particular to a spray water system in a telescopic part of a heading machine.
Background
The telescopic part is a key component of the tunneling machine, when the tunneling machine works, an inner spraying device and an outer spraying device are needed, the using water pressure of the inner spraying device is not smaller than 3MPa, and the tunneling machine produced by all factories currently in use has the problem that although the tunneling machine has an inner spraying function, the sealing of a spraying water system in the telescopic part is unreliable, and once the tunneling machine is used for a long time, the water leakage condition can cause oil-water mixing, so that the equipment is damaged rapidly and cannot work.
Current conditions of spray water system in telescoping section: the high-pressure water is sent to the water pipe of the telescopic protection cylinder by the water pump, is sent to the water cavity of the cutting head by the floating sealing frame, the spacer bush and the main shaft, and is sprayed out by the nozzle on the cutting head. There are problems: the floating sealing frame and the spacer bush are sealed by two rotary sealing rings, the floating sealing frame and the spacer bush rotate relatively during working, the rotary sealing is difficult to ensure long-term sealing effect, the practical result is that the rotary sealing rings leak in a short time after an internal spraying waterway is connected, and as the sealing position is positioned in the middle position of the floating sealing oil cavity and the bearing oil cavity, the oil-water mixing condition is generated after water leakage occurs, the damage of the floating sealing, the bearing and other parts is caused very quickly, so that equipment cannot work normally, and the problem has become the problem of a spraying water system in a telescopic part.
Disclosure of Invention
The invention aims to solve the problem that oil-water mixing equipment is damaged and cannot be used normally due to water leakage, and particularly provides a spray water system in a telescopic part of a heading machine.
The invention provides a spray water system in a telescopic part of a heading machine, which is characterized in that: the spray water system in the telescopic part of the heading machine comprises a water inlet pipe 1, a telescopic protection cylinder 2, a locating pin 3, a rotary sealing device 4, a water spacer 5, an overflow groove 6, a spacer 7, an asbestos packing 8, a floating sealing frame 9, a floating sealing seat 10, a floating seal 11, a water seal 12, an overflow hole 13, a cutting head overflow hole 14, a telescopic inner cylinder 15, a telescopic outer cylinder 16, a static seal 17, a main shaft 18, an oil seal 19, a static seal ring 20, a rotary seal ring 21, a floating seal oil cavity 22, a water storage cavity 23, a cutting head 24, a water spraying hole 25, a nozzle 26, a water inlet sealing assembly 27, a bearing 28 and a telescopic inner cylinder end part 29;
wherein: the telescopic inner cylinder 15 and the telescopic outer cylinder 16 are connected in a matched manner and can axially slide relatively, the telescopic protection cylinder 2 is sleeved outside the telescopic outer cylinder 16, the tail end of the water inlet pipe 1 is arranged between the telescopic protection cylinder 2 and the telescopic outer cylinder 16, and the front end of the water inlet pipe 1 is connected with a through hole on the floating sealing frame 9 through an O-shaped ring; the small holes on the floating seal frame 9 are communicated with the through holes at the end part of the telescopic inner cylinder 15 through the rotary seal device 4, the static seal 17 and the water inlet seal assembly 27; the main shaft 18 is provided with a U-shaped through hole, one end of the U-shaped through hole is communicated with the water inlet pipe 1, the other end of the U-shaped through hole is connected with a water spraying hole 25 arranged on the side surface of the head of the cutting head 24, and the water spraying hole 25 is connected with a nozzle 26; the main shaft 18 is arranged in the telescopic inner cylinder 15 through a bearing 28, the middle part of the main shaft 18 is sealed with the spacer bush 7 through a static sealing ring 20 and a rotary sealing ring 21, the rear part of the main shaft 18 is matched with the telescopic inner cylinder 15 through a small bearing and an oil seal 19, the telescopic inner cylinder end part 29 is connected with the floating sealing seat 10 through a water seal 12 and a floating sealing oil cavity 22, and the floating sealing oil cavity 22 is internally provided with a floating seal 11; the spacer bush 7 is matched with the main shaft 18 through the static sealing ring 20, and the spacer bush 7 is matched and connected with the telescopic inner cylinder end part 29 through the rotary sealing ring 21; an overflow hole 13 is arranged between the telescopic inner cylinder end part 29 and the floating sealing frame 9, and the overflow groove 6 is connected with the water spacer 5 through the positioning pin 3; an asbestos packing 8 is arranged between the telescopic protection cylinder 2 and the cutting head 24, the rear part of the cutting head 24 is provided with a cutting head overflow hole 14, and the front part of the cutting head 24 is internally provided with a water storage cavity 23.
The bearing 28 is a bi-directional thrust bearing.
The telescopic inner cylinder 15, the telescopic protection cylinder 2, the floating sealing frame 9 and the water inlet sealing assembly 27 are connected into a whole to form a static piece.
The floating sealing frame 9 is connected with the telescopic inner cylinder 15 through bolts and clamps the telescopic protection cylinder 2.
The floating seal oil chamber 22 is an annular chamber structure.
The outlet direction of the cutting head overflow hole 14 arranged at the rear part of the cutting head 24 is parallel to the axial direction of the cutting head 24.
The phenomenon of damage to oil-water mixing equipment caused by water leakage is solved, so that a user can use the internal spraying water system reliably, and the use requirement in the regulations of the coal mine safety regulations is met.
The high-pressure water is conveyed to the water pipe of the telescopic protection cylinder by the water pump, is conveyed to the water cavity of the cutting head by the floating sealing frame, the water inlet sealing sleeve component, the water separating sleeve and the main shaft, and is sprayed out by the water spray nozzle on the cutting head. Meanwhile, water sealing is added between the floating sealing frame and the floating sealing seat, the floating sealing frame is provided with an overflow groove and an overflow hole, and the cutting head is provided with the overflow hole. Under the condition of damage of the rotary seal, the overflow groove and the overflow hole on the floating seal frame discharge the leakage water through the overflow hole on the cutting head, and meanwhile, the water seal between the floating seal frame and the floating seal seat prevents the leakage water from entering the floating seal oil cavity. Because the waterway is designed at the outer sides of the floating seal oil cavity and the bearing oil cavity, the two oil cavities are prevented from being damaged by leaked water, the equipment can work normally even if water is leaked, and a user only needs to observe the water spraying condition of the cutting head to find that the water yield is insufficient and replace the rotary seal.
The transmission principle is as follows: the main shaft drives the cutting head to rotate, and the cutting head is connected with the water spacer and the floating sealing seat by the connecting pin to rotate together with the main shaft. The water inlet sealing sleeve component is fixed with the floating sealing frame by a locating pin, and the floating sealing frame is connected with the telescopic inner cylinder by a bolt and clamps the protection cylinder. The floating sealing frame and the water hole of the protection cylinder are sealed by an O-shaped ring. The main shaft, the spacer bush, the floating seal seat, the water spacer bush and the cutting head rotate together to form a rotating piece. The telescopic inner cylinder, the telescopic protection cylinder, the floating sealing frame and the water inlet sealing sleeve assembly are connected into a whole to form a static piece.
The invention has the advantages that:
the internal spraying water system of the telescopic part of the heading machine is not dare to use the internal spraying water system easily in the prior art, and equipment is damaged once the internal spraying water system is used for too long. The product of this scheme can let the user use the interior spraying water system of guaranteeing the mind, can not cause the damage of equipment.
Drawings
The invention will be described in further detail with reference to the accompanying drawings and embodiments:
FIG. 1 is a schematic diagram of a spray water system in a telescoping section of a heading machine.
Detailed Description
Example 1
The embodiment provides a spraying water system in telescopic part of entry driving machine, its characterized in that: the spray water system in the telescopic part of the heading machine comprises a water inlet pipe 1, a telescopic protection cylinder 2, a locating pin 3, a rotary sealing device 4, a water spacer 5, an overflow groove 6, a spacer 7, an asbestos packing 8, a floating sealing frame 9, a floating sealing seat 10, a floating seal 11, a water seal 12, an overflow hole 13, a cutting head overflow hole 14, a telescopic inner cylinder 15, a telescopic outer cylinder 16, a static seal 17, a main shaft 18, an oil seal 19, a static seal ring 20, a rotary seal ring 21, a floating seal oil cavity 22, a water storage cavity 23, a cutting head 24, a water spraying hole 25, a nozzle 26, a water inlet sealing assembly 27, a bearing 28 and a telescopic inner cylinder end part 29;
wherein: the telescopic inner cylinder 15 and the telescopic outer cylinder 16 are connected in a matched manner and can axially slide relatively, the telescopic protection cylinder 2 is sleeved outside the telescopic outer cylinder 16, the tail end of the water inlet pipe 1 is arranged between the telescopic protection cylinder 2 and the telescopic outer cylinder 16, and the front end of the water inlet pipe 1 is connected with a through hole on the floating sealing frame 9 through an O-shaped ring; the small holes on the floating seal frame 9 are communicated with the through holes at the end part of the telescopic inner cylinder 15 through the rotary seal device 4, the static seal 17 and the water inlet seal assembly 27; the main shaft 18 is provided with a U-shaped through hole, one end of the U-shaped through hole is communicated with the water inlet pipe 1, the other end of the U-shaped through hole is connected with a water spraying hole 25 arranged on the side surface of the head of the cutting head 24, and the water spraying hole 25 is connected with a nozzle 26; the main shaft 18 is arranged in the telescopic inner cylinder 15 through a bearing 28, the middle part of the main shaft 18 is sealed with the spacer bush 7 through a static sealing ring 20 and a rotary sealing ring 21, the rear part of the main shaft 18 is matched with the telescopic inner cylinder 15 through a small bearing and an oil seal 19, the telescopic inner cylinder end part 29 is connected with the floating sealing seat 10 through a water seal 12 and a floating sealing oil cavity 22, and the floating sealing oil cavity 22 is internally provided with a floating seal 11; the spacer bush 7 is matched with the main shaft 18 through the static sealing ring 20, and the spacer bush 7 is matched and connected with the telescopic inner cylinder end part 29 through the rotary sealing ring 21; an overflow hole 13 is arranged between the telescopic inner cylinder end part 29 and the floating sealing frame 9, and the overflow groove 6 is connected with the water spacer 5 through the positioning pin 3; an asbestos packing 8 is arranged between the telescopic protection cylinder 2 and the cutting head 24, the rear part of the cutting head 24 is provided with a cutting head overflow hole 14, and the front part of the cutting head 24 is internally provided with a water storage cavity 23.
The bearing 28 is a bi-directional thrust bearing.
The telescopic inner cylinder 15, the telescopic protection cylinder 2, the floating sealing frame 9 and the water inlet sealing assembly 27 are connected into a whole to form a static piece.
The floating sealing frame 9 is connected with the telescopic inner cylinder 15 through bolts and clamps the telescopic protection cylinder 2.
The floating seal oil chamber 22 is an annular chamber structure.
The outlet direction of the cutting head overflow hole 14 arranged at the rear part of the cutting head 24 is parallel to the axial direction of the cutting head 24.
The phenomenon of damage to oil-water mixing equipment caused by water leakage is solved, so that a user can use the internal spraying water system reliably, and the use requirement in the regulations of the coal mine safety regulations is met.
The high-pressure water is conveyed to the water pipe of the telescopic protection cylinder by the water pump, is conveyed to the water cavity of the cutting head by the floating sealing frame, the water inlet sealing sleeve component, the water separating sleeve and the main shaft, and is sprayed out by the water spray nozzle on the cutting head. Meanwhile, water sealing is added between the floating sealing frame and the floating sealing seat, the floating sealing frame is provided with an overflow groove and an overflow hole, and the cutting head is provided with the overflow hole. Under the condition of damage of the rotary seal, the overflow groove and the overflow hole on the floating seal frame discharge the leakage water through the overflow hole on the cutting head, and meanwhile, the water seal between the floating seal frame and the floating seal seat prevents the leakage water from entering the floating seal oil cavity. Because the waterway is designed at the outer sides of the floating seal oil cavity and the bearing oil cavity, the two oil cavities are prevented from being damaged by leaked water, the equipment can work normally even if water is leaked, and a user only needs to observe the water spraying condition of the cutting head to find that the water yield is insufficient and replace the rotary seal.
The transmission principle is as follows: the main shaft drives the cutting head to rotate, and the cutting head is connected with the water spacer and the floating sealing seat by the connecting pin to rotate together with the main shaft. The water inlet sealing sleeve component is fixed with the floating sealing frame by a locating pin, and the floating sealing frame is connected with the telescopic inner cylinder by a bolt and clamps the protection cylinder. The floating sealing frame and the water hole of the protection cylinder are sealed by an O-shaped ring. The main shaft, the spacer bush, the floating seal seat, the water spacer bush and the cutting head rotate together to form a rotating piece. The telescopic inner cylinder, the telescopic protection cylinder, the floating sealing frame and the water inlet sealing sleeve assembly are connected into a whole to form a static piece.
Example 2
The embodiment provides a spraying water system in telescopic part of entry driving machine, its characterized in that: the spray water system in the telescopic part of the heading machine comprises a water inlet pipe 1, a telescopic protection cylinder 2, a locating pin 3, a rotary sealing device 4, a water spacer 5, an overflow groove 6, a spacer 7, an asbestos packing 8, a floating sealing frame 9, a floating sealing seat 10, a floating seal 11, a water seal 12, an overflow hole 13, a cutting head overflow hole 14, a telescopic inner cylinder 15, a telescopic outer cylinder 16, a static seal 17, a main shaft 18, an oil seal 19, a static seal ring 20, a rotary seal ring 21, a floating seal oil cavity 22, a water storage cavity 23, a cutting head 24, a water spraying hole 25, a nozzle 26, a water inlet sealing assembly 27, a bearing 28 and a telescopic inner cylinder end part 29;
wherein: the telescopic inner cylinder 15 and the telescopic outer cylinder 16 are connected in a matched manner and can axially slide relatively, the telescopic protection cylinder 2 is sleeved outside the telescopic outer cylinder 16, the tail end of the water inlet pipe 1 is arranged between the telescopic protection cylinder 2 and the telescopic outer cylinder 16, and the front end of the water inlet pipe 1 is connected with a through hole on the floating sealing frame 9 through an O-shaped ring; the small holes on the floating seal frame 9 are communicated with the through holes at the end part of the telescopic inner cylinder 15 through the rotary seal device 4, the static seal 17 and the water inlet seal assembly 27; the main shaft 18 is provided with a U-shaped through hole, one end of the U-shaped through hole is communicated with the water inlet pipe 1, the other end of the U-shaped through hole is connected with a water spraying hole 25 arranged on the side surface of the head of the cutting head 24, and the water spraying hole 25 is connected with a nozzle 26; the main shaft 18 is arranged in the telescopic inner cylinder 15 through a bearing 28, the middle part of the main shaft 18 is sealed with the spacer bush 7 through a static sealing ring 20 and a rotary sealing ring 21, the rear part of the main shaft 18 is matched with the telescopic inner cylinder 15 through a small bearing and an oil seal 19, the telescopic inner cylinder end part 29 is connected with the floating sealing seat 10 through a water seal 12 and a floating sealing oil cavity 22, and the floating sealing oil cavity 22 is internally provided with a floating seal 11; the spacer bush 7 is matched with the main shaft 18 through the static sealing ring 20, and the spacer bush 7 is matched and connected with the telescopic inner cylinder end part 29 through the rotary sealing ring 21; an overflow hole 13 is arranged between the telescopic inner cylinder end part 29 and the floating sealing frame 9, and the overflow groove 6 is connected with the water spacer 5 through the positioning pin 3; an asbestos packing 8 is arranged between the telescopic protection cylinder 2 and the cutting head 24, the rear part of the cutting head 24 is provided with a cutting head overflow hole 14, and the front part of the cutting head 24 is internally provided with a water storage cavity 23.
The bearing 28 is a bi-directional thrust bearing.
The telescopic inner cylinder 15, the telescopic protection cylinder 2, the floating sealing frame 9 and the water inlet sealing assembly 27 are connected into a whole to form a static piece.
The phenomenon of damage to oil-water mixing equipment caused by water leakage is solved, so that a user can use the internal spraying water system reliably, and the use requirement in the regulations of the coal mine safety regulations is met.
The high-pressure water is conveyed to the water pipe of the telescopic protection cylinder by the water pump, is conveyed to the water cavity of the cutting head by the floating sealing frame, the water inlet sealing sleeve component, the water separating sleeve and the main shaft, and is sprayed out by the water spray nozzle on the cutting head. Meanwhile, water sealing is added between the floating sealing frame and the floating sealing seat, the floating sealing frame is provided with an overflow groove and an overflow hole, and the cutting head is provided with the overflow hole. Under the condition of damage of the rotary seal, the overflow groove and the overflow hole on the floating seal frame discharge the leakage water through the overflow hole on the cutting head, and meanwhile, the water seal between the floating seal frame and the floating seal seat prevents the leakage water from entering the floating seal oil cavity. Because the waterway is designed at the outer sides of the floating seal oil cavity and the bearing oil cavity, the two oil cavities are prevented from being damaged by leaked water, the equipment can work normally even if water is leaked, and a user only needs to observe the water spraying condition of the cutting head to find that the water yield is insufficient and replace the rotary seal.
The transmission principle is as follows: the main shaft drives the cutting head to rotate, and the cutting head is connected with the water spacer and the floating sealing seat by the connecting pin to rotate together with the main shaft. The water inlet sealing sleeve component is fixed with the floating sealing frame by a locating pin, and the floating sealing frame is connected with the telescopic inner cylinder by a bolt and clamps the protection cylinder. The floating sealing frame and the water hole of the protection cylinder are sealed by an O-shaped ring. The main shaft, the spacer bush, the floating seal seat, the water spacer bush and the cutting head rotate together to form a rotating piece. The telescopic inner cylinder, the telescopic protection cylinder, the floating sealing frame and the water inlet sealing sleeve assembly are connected into a whole to form a static piece.
Example 3
The embodiment provides a spraying water system in telescopic part of entry driving machine, its characterized in that: the spray water system in the telescopic part of the heading machine comprises a water inlet pipe 1, a telescopic protection cylinder 2, a locating pin 3, a rotary sealing device 4, a water spacer 5, an overflow groove 6, a spacer 7, an asbestos packing 8, a floating sealing frame 9, a floating sealing seat 10, a floating seal 11, a water seal 12, an overflow hole 13, a cutting head overflow hole 14, a telescopic inner cylinder 15, a telescopic outer cylinder 16, a static seal 17, a main shaft 18, an oil seal 19, a static seal ring 20, a rotary seal ring 21, a floating seal oil cavity 22, a water storage cavity 23, a cutting head 24, a water spraying hole 25, a nozzle 26, a water inlet sealing assembly 27, a bearing 28 and a telescopic inner cylinder end part 29;
wherein: the telescopic inner cylinder 15 and the telescopic outer cylinder 16 are connected in a matched manner and can axially slide relatively, the telescopic protection cylinder 2 is sleeved outside the telescopic outer cylinder 16, the tail end of the water inlet pipe 1 is arranged between the telescopic protection cylinder 2 and the telescopic outer cylinder 16, and the front end of the water inlet pipe 1 is connected with a through hole on the floating sealing frame 9 through an O-shaped ring; the small holes on the floating seal frame 9 are communicated with the through holes at the end part of the telescopic inner cylinder 15 through the rotary seal device 4, the static seal 17 and the water inlet seal assembly 27; the main shaft 18 is provided with a U-shaped through hole, one end of the U-shaped through hole is communicated with the water inlet pipe 1, the other end of the U-shaped through hole is connected with a water spraying hole 25 arranged on the side surface of the head of the cutting head 24, and the water spraying hole 25 is connected with a nozzle 26; the main shaft 18 is arranged in the telescopic inner cylinder 15 through a bearing 28, the middle part of the main shaft 18 is sealed with the spacer bush 7 through a static sealing ring 20 and a rotary sealing ring 21, the rear part of the main shaft 18 is matched with the telescopic inner cylinder 15 through a small bearing and an oil seal 19, the telescopic inner cylinder end part 29 is connected with the floating sealing seat 10 through a water seal 12 and a floating sealing oil cavity 22, and the floating sealing oil cavity 22 is internally provided with a floating seal 11; the spacer bush 7 is matched with the main shaft 18 through the static sealing ring 20, and the spacer bush 7 is matched and connected with the telescopic inner cylinder end part 29 through the rotary sealing ring 21; an overflow hole 13 is arranged between the telescopic inner cylinder end part 29 and the floating sealing frame 9, and the overflow groove 6 is connected with the water spacer 5 through the positioning pin 3; an asbestos packing 8 is arranged between the telescopic protection cylinder 2 and the cutting head 24, the rear part of the cutting head 24 is provided with a cutting head overflow hole 14, and the front part of the cutting head 24 is internally provided with a water storage cavity 23.
The phenomenon of damage to oil-water mixing equipment caused by water leakage is solved, so that a user can use the internal spraying water system reliably, and the use requirement in the regulations of the coal mine safety regulations is met.
The high-pressure water is conveyed to the water pipe of the telescopic protection cylinder by the water pump, is conveyed to the water cavity of the cutting head by the floating sealing frame, the water inlet sealing sleeve component, the water separating sleeve and the main shaft, and is sprayed out by the water spray nozzle on the cutting head. Meanwhile, water sealing is added between the floating sealing frame and the floating sealing seat, the floating sealing frame is provided with an overflow groove and an overflow hole, and the cutting head is provided with the overflow hole. Under the condition of damage of the rotary seal, the overflow groove and the overflow hole on the floating seal frame discharge the leakage water through the overflow hole on the cutting head, and meanwhile, the water seal between the floating seal frame and the floating seal seat prevents the leakage water from entering the floating seal oil cavity. Because the waterway is designed at the outer sides of the floating seal oil cavity and the bearing oil cavity, the two oil cavities are prevented from being damaged by leaked water, the equipment can work normally even if water is leaked, and a user only needs to observe the water spraying condition of the cutting head to find that the water yield is insufficient and replace the rotary seal.
The transmission principle is as follows: the main shaft drives the cutting head to rotate, and the cutting head is connected with the water spacer and the floating sealing seat by the connecting pin to rotate together with the main shaft. The water inlet sealing sleeve component is fixed with the floating sealing frame by a locating pin, and the floating sealing frame is connected with the telescopic inner cylinder by a bolt and clamps the protection cylinder. The floating sealing frame and the water hole of the protection cylinder are sealed by an O-shaped ring. The main shaft, the spacer bush, the floating seal seat, the water spacer bush and the cutting head rotate together to form a rotating piece. The telescopic inner cylinder, the telescopic protection cylinder, the floating sealing frame and the water inlet sealing sleeve assembly are connected into a whole to form a static piece.
Claims (5)
1. The utility model provides a spraying water system in telescopic part of entry driving machine which characterized in that: the spray water system in the telescopic part of the heading machine comprises a water inlet pipe (1), a telescopic protection cylinder (2), a locating pin (3), a rotary sealing device (4), a water spacer (5), an overflow groove (6), a spacer (7), an asbestos packing (8), a floating sealing frame (9), a floating sealing seat (10), a floating seal (11), a water seal (12), an overflow hole (13), a cutting head overflow hole (14), a telescopic inner cylinder (15), a telescopic outer cylinder (16), a static seal (17), a main shaft (18), an oil seal (19), a static seal ring (20), a rotary seal ring (21), a floating seal oil cavity (22), a water storage cavity (23), a cutting head (24), a water spraying hole (25), a nozzle (26), a water inlet sealing component (27), a bearing (28) and a telescopic inner cylinder end part (29);
wherein: the telescopic inner cylinder (15) is connected with the telescopic outer cylinder (16) in a matched manner, can axially slide relatively, the telescopic protection cylinder (2) is sleeved outside the telescopic outer cylinder (16), the tail end of the water inlet pipe (1) is arranged between the telescopic protection cylinder (2) and the telescopic outer cylinder (16), and the front end of the water inlet pipe (1) is connected with a through hole on the floating sealing frame (9) through an O-shaped ring; the small holes on the floating sealing frame (9) are communicated with the through holes at the end part of the telescopic inner cylinder (15) through the rotary sealing device (4), the static seal (17) and the water inlet sealing component (27); the main shaft (18) is provided with a U-shaped through hole, one end of the U-shaped through hole is communicated with the water inlet pipe (1), the other end of the U-shaped through hole is connected with a water spraying hole (25) arranged on the side surface of the head of the cutting head (24), and the water spraying hole (25) is connected with a nozzle (26); the main shaft (18) is arranged inside the telescopic inner cylinder (15) through a bearing (28), the middle part of the main shaft (18) is sealed with the spacer bush (7) through a static sealing ring (20) and a rotary sealing ring (21), the rear part of the main shaft (18) is matched with the telescopic inner cylinder (15) through a small bearing and an oil seal (19), a telescopic inner cylinder end part (29) is connected with the floating sealing seat (10) through a water seal (12) and a floating sealing oil cavity (22), and the floating sealing oil cavity (22) is internally provided with a floating seal (11); the spacer bush (7) is matched with the main shaft (18) through the static sealing ring (20), and the spacer bush (7) is matched and connected with the telescopic inner cylinder end part (29) through the rotary sealing ring (21); an overflow hole (13) is arranged between the telescopic inner cylinder end part (29) and the floating sealing frame (9), and the overflow groove (6) is connected with the water spacer bush (5) through the locating pin (3); an asbestos packing (8) is arranged between the telescopic protection cylinder (2) and the cutting head (24), a cutting head overflow hole (14) is arranged at the rear part of the cutting head (24), and a water storage cavity (23) is arranged in the front part of the cutting head (24);
the telescopic inner cylinder (15), the telescopic protection cylinder (2), the floating sealing frame (9) and the water inlet sealing assembly (27) are connected into a whole to form a static piece.
2. The in-telescoping part spray water system of a heading machine as recited in claim 1, wherein: the bearing (28) is a bidirectional thrust bearing.
3. The in-telescoping part spray water system of a heading machine as recited in claim 1, wherein: the floating sealing frame (9) is connected with the telescopic inner cylinder (15) through bolts and clamps the telescopic protection cylinder (2).
4. The in-telescoping part spray water system of a heading machine as recited in claim 1, wherein: the floating seal oil cavity (22) is of an annular cavity structure.
5. The in-telescoping part spray water system of a heading machine as recited in claim 1, wherein: the outlet direction of the cutting head overflow hole (14) arranged at the rear part of the cutting head (24) is parallel to the axial direction of the cutting head (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910388904.9A CN109958436B (en) | 2019-05-10 | 2019-05-10 | Spray water system in telescopic part of heading machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910388904.9A CN109958436B (en) | 2019-05-10 | 2019-05-10 | Spray water system in telescopic part of heading machine |
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| Publication Number | Publication Date |
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| CN109958436A CN109958436A (en) | 2019-07-02 |
| CN109958436B true CN109958436B (en) | 2024-04-12 |
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| CN201910388904.9A Active CN109958436B (en) | 2019-05-10 | 2019-05-10 | Spray water system in telescopic part of heading machine |
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|---|---|---|---|---|
| CN113618974A (en) * | 2021-09-20 | 2021-11-09 | 刘小龙 | Large-scale wind-powered electricity generation blade mould |
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