CN107152529A - The grease lubrication sealing system and injection monitoring method of push-bench drive system - Google Patents
The grease lubrication sealing system and injection monitoring method of push-bench drive system Download PDFInfo
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- CN107152529A CN107152529A CN201710446044.0A CN201710446044A CN107152529A CN 107152529 A CN107152529 A CN 107152529A CN 201710446044 A CN201710446044 A CN 201710446044A CN 107152529 A CN107152529 A CN 107152529A
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- grease
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention belongs to push-bench technical field.The grease lubrication sealing system and injection monitoring method of a kind of push-bench drive system, including sealing structure, grease seal and detecting and controlling system, the sealing structure includes multiple tracks tongue-and-groove and the seal being arranged in tongue-and-groove, and the sealing structure causes the internal structure of driving box and external environment condition to be isolated；The grease seal includes grease seal chamber, grease injection channel and the grease pump multiple tracks in a ring, and the grease seal chamber is arranged between adjacent twice tongue-and-groove, and each grease seal chamber is connected by grease injection channel with grease pump；The detecting and controlling system is monitored and adjusted to the pressure of grease of grease seal chamber, and the integrity of grease seal is detected, while it can carry out grease injection to cutter plate driver and conveying worm driving and sealing is monitored.The reasonable in design, safe and reliable, simple and practical and economic and environment-friendly of the present invention, can provide good running environment for push-bench.
Description
Technical field
The invention belongs to push-bench technical field, and in particular to a kind of grease lubrication sealing system of push-bench drive system
And injection monitoring method.
Background technology
Push-bench is a kind of special engineering machinery of tunnel piercing, can be divided into circular push-bench and special-shaped push pipe according to shape
Machine.In recent years, with the development and the continuous expansion of Urban Underground Space Excavation of China's urbanization, push-bench develops fast in China
Suddenly.Push-bench has the features such as construction technology is simple, ambient influnence is small, driving speed is fast, is widely used in municipal works, synthesis
The fields such as piping lane, Under-cross tunnel, subway gateway.
Push-bench is in tunnel excavating process, and cutterhead excavates system and realizes soil excavation and deslagging respectively with conveying worm
Function, is the key components of push-bench.Moment of torsion wherein needed for cutterhead excavation system is provided by cutter plate driver, cutter plate driver
It is made up of drive case, travelling gear, transmission main shaft, base bearing, decelerator, grease lubrication sealing system etc., is push-bench
Core component, wherein grease lubrication sealing system are mainly used in answering in cutter plate driver case internal structure and outside many slags, many water
Heterocycle border completely cuts off, and good running environment is provided for parts such as the base bearing inside cutter plate driver, travelling gears, is that cutterhead is excavated
The important guarantee of system worked well.Moment of torsion needed for conveying worm is driven by conveying worm to be provided, and conveying worm drives
It is dynamic to include driving ring, turntable bearing, little gear, deep groove ball bearing, grease lubrication sealing system etc., it is the core of push-bench
Part, wherein grease lubrication sealing system are mainly used in answering in conveying worm driving box internal structure and outside many slags, many water
Heterocycle border completely cuts off, and provides good running environment for parts such as the bearings and gear in driving box, is the normal work of conveying worm
The important guarantee of work.
At present in rock tunnel(ling) machine field, cutter plate driver is used with conveying worm driving grease lubrication sealing system
The structure type of " grease extruded type ", in fan while the grease seal intracavitary injection EP2 greases formed between lip packing
HBW greases are injected at the sealing of palace, EP2 greases are required to constantly be expressed into native storehouse by sealing structure with HBW greases, by grease
Flow barrier muddy water enter driving box in.It is primarily present following shortcoming：1) need continuously to inject oil when equipment works
Fat, grease consumption species is more, consumption is big, and grease injection device requires complicated, and overall cost is very high；2) grease is largely injected into
In dregs, larger environmental pollution can be caused.
Therefore, invent a kind of safe and reliable, simple and practical, economic and environment-friendly push-bench cutter plate driver and conveying worm drives
Dynamic grease lubrication sealing system has very important significance.
The content of the invention
The purpose of the present invention be for above-mentioned problem and shortage there is provided a kind of reasonable in design, it is safe and reliable,
The grease lubrication sealing system and injection monitoring method of simple and practical and economic and environment-friendly push-bench drive system.
To reach above-mentioned purpose, adopted the technical scheme that：
A kind of grease lubrication sealing system of push-bench drive system, including sealing structure, grease seal and detection control
System, the sealing structure includes multiple tracks tongue-and-groove and the seal being arranged in tongue-and-groove, and the sealing structure causes the interior of driving box
Portion's structure is isolated with external environment condition；The grease seal include multiple tracks grease seal chamber in a ring, grease injection channel and
Grease pump, the grease seal chamber is arranged between adjacent twice tongue-and-groove, each grease seal chamber by grease injection channel with
Grease pump is connected；The detecting and controlling system is monitored and adjusted to the pressure of grease of grease seal chamber, and to grease seal
Integrity detected.
Be laid with pressure detecting mouthful and multiple grease injection ports in the circumference of each grease seal chamber, with the grease
Grease injection channel and pressure of grease sense channel are offered respectively on inlet and the corresponding structural member of the pressure detecting mouthful,
The pressure of grease sense channel is circumscribed with manual ball valve and pressure sensor by triple valve, and the pressure sensor will be detected
Signal passes to detecting and controlling system, is monitored and detects.
It is being provided with annular test chamber on the inside of the driving box, the annular test chamber is circumferentially provided with two sealings
The intact sense channel of sealing is offered on intact detection mouth, structural member corresponding with the intact detection mouth of sealing described in two, two
Transparent detection pipe is provided between the intact sense channel of sealing, the transparent detection pipe upper end is connected with by triple valve exhales
Haustorium and the wherein one intact sense channel of sealing, the transparent detection pipe lower end is connected with manual ball valve and another by triple valve
One intact sense channel of sealing.
Be provided between the grease injection channel and grease tank on pressure protective loop, pressure protective loop be provided with it is excessive
Flow and be provided with low liquid level warning device on valve, the grease pump, and check valve and pressure are provided with the oil-out of grease pump
Table.
The push-bench drive system includes cutter plate driver and conveying worm drives, in cutter plate driver and conveying worm
Sealing structure and grease seal are provided with driving.
Seal receptacle is provided between the cutterhead cylinder and cutter plate driver case of the cutter plate driver, the seal receptacle is led with driving
Wear-resistant sleeve is provided between axle, is sealed between the wear-resistant sleeve and drive shaft by O-ring；The seal receptacle with it is wear-resisting
The multiple tracks lip packing positioned at the multiple tracks Glais ring sealing in two outsides and positioned at middle part, the grease seal are provided between sleeve pipe
Chamber is arranged between adjacent two lip packing, and multiple tracks grease seal chamber is arranged in series；Between seal receptacle and the cutterhead cylinder
It is provided with labyrinth seal, the O-ring sealing, Glais ring sealing, the sealing structure of lip packing composition cutter plate driver.
Driving ring is provided between the anterior drive case and rear portion drive case of the conveying worm driving, in front portion
Front cylinder flange and back cylinder flange are connected on the outside of drive case and rear drive case, in anterior drive case
Inner side laminating is provided with turntable bearing；The anterior drive case, turntable bearing and rear portion drive case and corresponding driving ring
Between be provided with multiple tracks lip packing, the grease seal chamber is arranged between adjacent two lip packing；Anterior drive case
Between front cylinder flange, between rear portion drive case and back cylinder flange, between turntable bearing and anterior drive case
O-ring sealing is provided with, lattice are provided between the turntable bearing and driving ring, between rear portion drive case and driving ring
Lai Quan is sealed, and driving ring two ends are provided with labyrinth seal between front cylinder flange and back cylinder flange respectively, described O-shaped
Circle sealing, Glais ring sealing, lip packing constitute the sealing structure that conveying worm drives.
When each passage passes through different structure part, O-ring sealing is provided with the contact surface of two structural members.
The injection monitoring method that a kind of grease lubrication sealing system using above-mentioned push-bench drive system is carried out, it is special
Levy and be：The push-bench drive system includes cutter plate driver and conveying worm drives, described grease injection monitoring method
Including grease injection process and sealing monitoring process；Grease injection process：Grease is determined by the low liquid level warning device of grease pump
Pump normal work, sets pressure protective loop and overflow valve between grease injection channel and grease tank, sets overflowing for overflow valve
Flowing pressure value P1, according to the detected pressure value of the pressure sensor feeds back of the upper connection of grease seal chamber, pass through manual mode
Or automatic mode control grease pump startup, grease is injected into each cutter plate driver and the grease seal chamber of conveying worm driving,
Until the detected pressure value of grease seal intracavitary reaches working pressure P2When, grease pump is closed, grease injection is completed, wherein
P1＞ P2；Sealing monitoring process, the detected value of the pressure sensor connected by detecting and controlling system to each grease seal chamber is implemented
Monitoring, realizes the monitoring of grease seal, when the detected pressure value of grease seal intracavitary is less than operating pressure warning value P3When, detection
Control system automatically controls grease pump and carries out grease injection, until the detected pressure value of each grease seal intracavitary reaches operating pressure
Value；By the annular test chamber and transparent detection pipe of setting, observe and whether there is grease in transparent detection pipe, detected whether close
Oil sealing fat or driving box gear oil penetrate into, and realize the monitoring whether failed to sealing structure.
The working pressure P of the grease seal chamber2For 3bar, the oil pressure relief value P of the overflow valve1For 5bar.
Using above-mentioned technical proposal, acquired beneficial effect is：
1) it is simple and practical, safe and reliable
A. cutter plate driver drives the structure type of grease lubrication sealing system to be that " combined rubber is close with conveying worm
Envelope+labyrinth seal ", combined rubber sealing is sealed by multiple lip type, Glais ring, O-ring are constituted, and these three are common sealing
Circle, assembly technology is simple.
B. the grease lubrication sealing system that the cutter plate driver of the application drives with conveying worm can be achieved to be more than
100bar's is pressed, and can effectively prevent outside dregs, muddy water from penetrating into leaking for driving box and internal lubrication grease and gear oil.
C. circumferentially there are multiple grease decanting points in each grease seal chamber, the lubricant grease and lip of injection can be made
Sealing fully contact, it is ensured that lubricant effect.
D. circumferentially there is pressure of grease test point in each grease seal chamber, the numerical value of pressure sensor can be passed through at any time
Change judges whether grease injection is normal.
E., annular test chamber is set in the grease lubrication sealing system of cutter plate driver, and in annular test chamber circumferentially
Integrity test point is sealed, whether has the grease for being injected into grease seal intracavitary or drive in transparent pipe that can be by observing its connection
Whether dynamic case gear oil penetrates into, failed so as to examine lip packing and Glais ring to seal.
F. the pressure protective loop that grease pump discharge is installed by overflow valve, it is ensured that grease injects the perseverance of maximum pressure
It is fixed, it is to avoid the pressure of grease of grease seal intracavitary is excessive and causes sealing ring to damage, while it is bad to solve the grease that overflow goes out
The problem of processing.
2) it is economic and environment-friendly
The matching structure design of sealing structure and grease seal in the application, itself can realize sealed work(well
Can, it is not necessary to which the constant flow for being expressed into Tu Cang by grease stops silt；Only need to a small amount of grease being injected into grease seal chamber,
Multiple lip type seal lip to two ends plays lubrication.On the one hand, the oil consumption of the invention is far smaller than extruded type oil
The oil consumption of grease lubrication sealing system, grease injection device is simpler, and every kilometer of driving mileage is cost-saved tens of
Wan Yuan；On the other hand, soil will not be polluted by grease, and environmental benefit is obvious.
3) grease is injected with manually and automatically two kinds of control models.Grease is noted by pressure sensor under automatic mode
Enter intracavitary pressure of grease to be monitored in real time, grease pump is automatically controlled according to pressure, it is ensured that each grease seal chamber is all
Enough greases can be obtained, and keep certain pressure limit.
Brief description of the drawings
Fig. 1 is the schematic diagram of grease lubrication sealing system of the present invention.
Fig. 2 is the grease lubrication sealing structure grease decanting point axial sectional diagrammatical view illustration of cutter plate driver.
Fig. 3 is the grease lubrication sealing structure grease test point axial sectional diagrammatical view illustration of cutter plate driver.
Fig. 4 is the external transparent pipe layout drawing of grease lubrication sealing structure test point of cutter plate driver.
Fig. 5 is the grease lubrication sealed structure chart that conveying worm drives.
Sequence number in figure：1- grease pumps A；101- check valves；102- overflow valves；103- pressure gauges；104- oil-outs；2- cutterheads
The grease filling line of driving；The grease filling line of 3- conveying worms driving；4- liquid level alarms；The oil of 5- cutter plate drivers
Grease lubrication sealing system；501- grease decanting points；502- pressure detectings point；The grease lubrication sealing system of 6- conveying worms driving
System；601- grease decanting points；602- pressure detectings point；7- grease pumps B；8- pressure sensors；9- manual ball valves；10- triple valves；
11- cutterhead cylinders；12- drive shafts；1201-O types circle is sealed；1202- labyrinth seals；13- wear sleeves；1301-O type circles are close
Envelope；14- seal receptacles；1401- Glais rings are sealed；1402- lip packing；1403- grease seal chambers；1404- grease test chambers；
1405-O type circles；1406- Glais rings are sealed；15- greases injection channel；16- cylinder roller bearings；17- cutter plate driver casings；
18- seals intact sense channel；19- triple valves；20- manual ball valves；The transparent detection pipes of 21-；22- respirators；23- driving box,
24- integrity test points；25- front cylinder flanges；2501-O types circle is sealed；2502- labyrinth seals；26- front portions drive case；
2601- lip packing；2602-O types circle is sealed；2603-O types circle is sealed；27- greases injection channel；28- grease seal chambers；29-
Turntable bearing；2901- lip packing；2902- Glais rings are sealed；30- driving rings；31- rear portions drive case；3101- greases are close
Seal chamber；32- back cylinder flanges；3201-O types circle is sealed；3202- labyrinth seals；33- passages.
Embodiment
The embodiment of the present invention is elaborated below in conjunction with accompanying drawing.
In this embodiment, described " O-ring sealing ", " labyrinth seal ", " grease seal chamber ", " manually
The title such as ball valve ", " triple valve " is identical, but label is different, is only for distinguishing and is arranged on different structural members, be easy to read and
Distinguish.
In the present embodiment, for the rectangular pipe jacking machine form that six cutterheads combine excavation, DWG is slagged tap, the type
Include 6 sets of identical cutter plate drivers and 2 sets of identical conveying worm drivings.The grease profit of the push-bench drive system of the type
Sliding sealing system, includes 2 grease pumps, 12 tunnel cutter plate driver lubricant grease filling lines, No. 8 conveying worm driving lubrications
Grease filling line, the grease lubrication sealing system of 6 sets of cutter plate drivers, the grease lubrication sealing system of 2 sets of conveying worms drivings
System.
The grease lubrication sealing system of each cutter plate driver includes 2 grease decanting points, 1 pressure of grease test point
With 2 sealing integrity test points；The grease lubrication sealing system of each conveying worm driving includes driving forward end seal
With driving back-end sealing two parts, and driving forward end seal with driving back-end sealing respectively include 2 grease decanting points and 1 pressure
Power test point.
As shown in figure 1, grease pump A1 and grease pump B7 oil-out 104 by the grease filling line 2 of cutter plate driver,
The grease filling line 3 of conveying worm driving, respectively with the grease decanting point of the grease lubrication sealing system 5 of cutter plate driver
501st, the grease decanting point 601 of the grease lubrication sealing system 6 of conveying worm driving is connected.Grease pump A1 is 1#, 2#, 3# knife
The grease lubrication sealing system 6 of grease decanting point 501 and 1# the conveying worms driving of the grease lubrication sealing system 5 of dish driving
Driving forward end seal and back-end sealing grease decanting point 601 provide grease；Grease pump B7 is 4#, 5#, 6# cutter plate driver
Before the driving of the grease lubrication sealing system 6 of grease decanting point 501 and 2# the conveying worms driving of grease lubrication sealing system 5
End sealing provides grease with back-end sealing grease decanting point 601.
As shown in Figures 2 and 3, the grease lubrication sealing system 5 of each cutter plate driver includes labyrinth seal 1202, wear-resistant sleeve
Cylinder 13, seal receptacle 14, O-ring seal (1201,1301,1405), Glais ring (1401,1406), lip packing 1402, grease are close
Seal grease injection channel 15, grease test chamber 1404 and the pressure sensing channel 18 of chamber 1403 and the connection of grease seal chamber；Its
Middle wear sleeve 13 is arranged in drive shaft 12, and 1 road O-ring sealing is provided between wear sleeve 13 and drive shaft 12
1301；Seal receptacle 14 is arranged on wear sleeve 13, and left side is provided with 2 Dougs between wear sleeve 13 and the contact surface of seal receptacle 14
Lai Quan sealings 1401, right side is provided with 1 road Glais ring sealing 1406, and middle part is provided with 3 road lip packing 1402, adjacent two
The annular grease seal chamber 1403 of 2 roads series connection is provided between lip packing 1402；At 5 points and the 2 of 9 directions of seal receptacle 14
On individual axial cross section, the grease injection of connection grease seal chamber 1403 and external cutter plate driver lubricant grease filling line 2 is set
Passage 15, is used as 2 grease decanting points 501；On the section in 1 direction of seal receptacle 14, connection grease seal is additionally provided with
The pressure of grease sense channel of chamber 1403 and external pressure sensor 8 and manual ball valve 9, the pressure of grease sense channel can be with
Grease injection channel 15 is shared, and is used as pressure detecting point 502；Close to cutterhead driving box one of multiple lip type sealing 1402 with
Between Glais ring 1406, the annular grease test chamber 1404 in 1 road is set；In 7 points of seal receptacle 14 axial cross sections with 11 directions
The upper intact sense channel 18 of sealing for setting 2 roads to connect grease test chamber 1404, is used as the test point 24 of 2 sealing integrity.
The structure of labyrinth seal 1202 is designed between seal receptacle 14 and cutterhead cylinder 11.Coordinate in cutterhead cylinder 11 and wear sleeve 13
Seam position is provided with 1 road O-ring sealing 1201.In grease injection channel 15, the intact sense channel 18 of sealing with passing through sealing
1 road O-ring 1405 is set at seat 14 and cutter plate driver casing 17.Each grease decanting point 501 is moistened by 1 cutter plate driver respectively
Lubricating oil fat filling line 2 is connected to an oil-out 104 of grease pump.Wherein, the sealing integrity test point 24 in 11 directions
By the external respirator 22 of triple valve 19 and the top of transparent detection pipe 21, the sealing integrity test point 24 in 7 directions passes through
The bottom of the external manual ball valve 20 of triple valve 19 and transparent pipe 21.
The grease lubrication sealing system 6 of each conveying worm driving includes driving forward end seal and driving back-end sealing two
Part, by labyrinth seal (2502,3202), multiple lip type sealing (2601,2901), Glais ring 2902 and O-ring (2501,
2602nd, 2603,3201) constitute.Drive in forward end seal, labyrinth seal is designed as between front cylinder flange 25 and driving ring 30
2502,1 road O-ring 2501 is provided between front cylinder flange 25 and anterior drive case 26, anterior drive case 26 is with turning
Dish axle is provided with 2 road O-rings (2602,2603) between holding 29,1 road lip is provided between anterior drive case 26 and driving ring 30
Shape sealing 2601, is provided with 1 road lip packing 2901 and 1 road Glais ring 2902, in lip between turntable bearing 29 and driving ring 30
The annular grease seal chamber 28 in 1 road is provided between shape sealing 2601,2901.Drive back-end sealing in, back cylinder flange 32 with
Labyrinth seal 3202 is designed between driving ring 30,1 road is provided between back cylinder flange 32 and rear portion drive case 31 O-shaped
Circle 3201, between rear portion drive case 31 and driving ring 30, is setting 1 road Glais ring close to the side of turntable bearing 29 vertically
2902, the side of back cylinder flange 32 is being provided with 2 road lip packing (2601,2901), lip packing (2601,
2901) the annular grease seal chamber 3101 in 1 road is provided between.Drive in forward end seal, passing through anterior drive case 26 and turning
Dish axle is held on 29 axial cross section in 4 points, 8 points, 12 directions, sets 3 roads to connect the grease injection channel of grease seal chamber 28
27, wherein 4 points of grease filling lines 3 driven with the external conveying worm in grease injection channel 27 in 8 directions, are used as 2
Grease decanting point 601, the grease filling line 3 that each grease decanting point 601 is driven by 1 conveying worm respectively is connected to
One oil-out 105 of grease pump；The grease injection channel 27 in 12 directions, is used as 1 pressure detecting point 602, pressure detecting
Point 602 passes through the external pressure sensor 8 of triple valve 10 and manual ball valve 9.Drive in back-end sealing, passing through rear portion drive case
On the axial cross section in 31 4 points, 8 points, 12 directions, 3 roads are set to connect the grease injection channel 33 of grease seal chamber 3101, its
In 4 points with the grease filling line 3 of the grease injection channel 33 external conveying worm driving in 8 directions, be used as 2 greases notes
Access point 601, the grease filling line 3 that each grease decanting point 601 is driven by 1 conveying worm respectively is connected to grease pump
An oil-out 105；The grease injection channel 33 in 12 directions is as grease test chamber, as 1 pressure detecting point 602,
Pressure detecting point 602 passes through the external pressure sensor 8 of triple valve 10 and manual ball valve 9.
Grease filling line 2, the grease filling line 3 of conveying worm driving of the cutter plate driver, are provided with logical
Cross the pressure protective loop that overflow valve 102 connects grease tank.It ensure that the constant of grease injection maximum pressure, it is to avoid grease seal
The pressure of grease of intracavitary is excessive and causes sealing ring to damage, while the problem of solving the bad processing of grease that overflow goes out.It is described
Grease pump A1, grease pump B7 the flow of each oil-out 104 it is independently adjustable, outlet band check valve 101, pressure gauge 103, and low liquid
Level alarm 4.
In the present embodiment, the grease lubrication sealing system that cutter plate driver drives with conveying worm uses multiple types
The combination sealing form of type, multiple tracks arrangement, sealing structure can realize sealed function well, can be achieved to be more than in itself
100bar's is pressed, and can effectively prevent outside dregs, muddy water from penetrating into leaking for driving box and internal lubrication grease and gear oil.
The constant flow that Tu Cang need not be expressed into by grease stops silt；Only need to a small amount of grease being injected into grease seal chamber, it is right
The multiple lip type seal lip at two ends plays lubrication.On the one hand, the oil consumption of the invention is far smaller than extruded type grease
The oil consumption of lubrication and seal system, grease injection device is simpler, and every kilometer of driving mileage is cost-saved hundreds thousand of
Member；On the other hand, soil will not be polluted by grease, and environmental benefit is obvious.Multiple grease decanting points circumferentially, can make note
The lubricant grease entered is fully contacted with lip packing, it is ensured that lubricant effect.Pressure of grease test point circumferentially, can lead at any time
The numerical value change of over-pressed force snesor judges whether grease injection is normal.The grease lubrication sealing system of cutter plate driver is circumferentially
Sealing integrity test point, can by observe its connect transparent detection pipe in whether have the oil for being injected into grease seal intracavitary
Whether fat or driving box gear oil penetrate into, failed so as to examine lip packing and Glais ring to seal.
Disclosed herein as well is the note that a kind of grease lubrication sealing system using above-mentioned push-bench drive system is carried out
Enter monitoring method, its grease pump A1 and grease pump B7 host computer being capable of individually start and stop, grease pump A1, grease pump B7 oil quantity
During in low liquid level, low liquid level warning device 4 can pass to alarm signal host computer, and grease pump A1, grease pump B7 forbid operation,
The detected value for the grease seal cavity pressure that 6 cutter plate drivers drive with 2 conveying worms can be shown in real time in host computer.Oil
Fat is injected with manually and automatically both of which.During manual mode, artificial operation button realizes the start and stop of grease pump；Automatic mode
When, intracavitary pressure of grease is injected to grease by pressure sensor and monitored in real time, grease pump is carried out according to pressure automatic
Control.When the detected pressure value of any one grease seal chamber in 1#, 2#, 3# cutter plate driver and the driving of 1# spiral shells machine is less than 1bar
When, grease pump A1 starts；When the detected pressure value of all grease seal chambers is more than 3bar, grease pump A1 stops.When 4#, 5#,
When the detected pressure value of any one grease seal chamber is less than 1bar during 6# cutter plate drivers drive with 2# spiral shells machine, grease pump B7 is opened
It is dynamic；When the detected pressure value of all grease seal chambers is more than 3bar, grease pump B7 stops.Due to each grease chamber pressure not
May be consistent, in fact it could happen that certain some chamber is less than 3bar, other is very big, in order to protect grease pump A1, grease pump B7
And seal, grease pump outlet overflows valve 102 is set to 5bar.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and that described in above-described embodiment and specification is the present invention
Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these change and
Improvement is both fallen within the range of claimed invention.The protection domain of application claims by appended claims and its
Equivalent is defined.
Claims (10)
1. a kind of grease lubrication sealing system of push-bench drive system, it is characterised in that including：
Sealing structure, the sealing structure includes multiple tracks tongue-and-groove and the seal being arranged in tongue-and-groove, and the sealing structure to drive
The internal structure of dynamic case is isolated with external environment condition；
Grease seal, the grease seal includes grease seal chamber, grease injection channel and the grease pump multiple tracks in a ring, described
Grease seal chamber is arranged between adjacent twice tongue-and-groove, and each grease seal chamber is connected by grease injection channel with grease pump；
And detecting and controlling system, the detecting and controlling system is monitored and adjusts to the pressure of grease of grease seal chamber, and right
The integrity of grease seal is detected.
2. the grease lubrication sealing system of push-bench drive system according to claim 1, it is characterised in that：Each described
The circumference of grease seal chamber is laid with pressure detecting mouthful and multiple grease injection ports, with the grease injection port and the pressure
Grease injection channel and pressure of grease sense channel, the pressure of grease detection are offered on the corresponding structural member of detection mouth respectively
Passage is circumscribed with manual ball valve and pressure sensor by triple valve, and the pressure sensor will detect that signal passes to detection control
System processed, is monitored and detects.
3. the grease lubrication sealing system of push-bench drive system according to claim 1, it is characterised in that：Close to institute
State annular test chamber is provided with the inside of driving box, the annular test chamber is circumferentially provided with the intact detection mouth of two sealings, with two
Described seal offers the intact sense channel of sealing on the corresponding structural member of intact detection mouth, in the intact detection of sealing described in two
Transparent detection pipe is provided between passage, the transparent detection pipe upper end is connected with respirator by triple valve and wherein one close
Intact sense channel is sealed, the transparent detection pipe lower end is connected with manual ball valve and another intact detection of sealing by triple valve
Passage.
4. the grease lubrication sealing system of push-bench drive system according to claim 1, it is characterised in that：The grease
It is provided between injection channel and grease tank on pressure protective loop, pressure protective loop and is provided with overflow valve, the grease pump
On be provided with low liquid level warning device, and be provided with check valve and pressure gauge at the oil-out of grease pump.
5. according to the grease lubrication sealing system of any described push-bench drive systems of claim 1-4, it is characterised in that：Institute
State push-bench drive system to drive including cutter plate driver and conveying worm, be all provided with cutter plate driver and conveying worm driving
It is equipped with sealing structure and grease seal.
6. the grease lubrication sealing system of push-bench drive system according to claim 5, it is characterised in that：The cutterhead
Seal receptacle is provided between the cutterhead cylinder and cutter plate driver case of driving, is provided between the seal receptacle and drive shaft wear-resisting
Sleeve pipe, is sealed between the wear-resistant sleeve and drive shaft by O-ring；Position is provided between the seal receptacle and wear-resistant sleeve
Multiple tracks Glais ring in two outsides is sealed and the multiple tracks lip packing positioned at middle part, and the grease seal chamber is arranged on adjacent two lip
Between shape sealing, and multiple tracks grease seal chamber is arranged in series；Labyrinth seal is provided between seal receptacle and the cutterhead cylinder, institute
State O-ring sealing, Glais ring sealing, the sealing structure of lip packing composition cutter plate driver.
7. the grease lubrication sealing system of push-bench drive system according to claim 5, it is characterised in that：The spiral
Driving ring is provided between the anterior drive case and rear portion drive case of conveyer driving, in anterior drive case and rear driving
Front cylinder flange and back cylinder flange are connected on the outside of casing, is provided with and turns in the inner side laminating of anterior drive case
Dish axle is held；Multiple tracks is provided between the anterior drive case, turntable bearing and rear portion drive case and corresponding driving ring
Lip packing, the grease seal chamber is arranged between adjacent two lip packing；Anterior drive case and front cylinder flange it
Between, between rear portion drive case and back cylinder flange, between turntable bearing and anterior drive case to be provided with O-ring close
Envelope, is provided with Glais ring sealing, driving ring between the turntable bearing and driving ring, between rear portion drive case and driving ring
Two ends are provided with labyrinth seal between front cylinder flange and back cylinder flange respectively, and the O-ring sealing, Glais ring are close
Envelope, lip packing constitute the sealing structure of conveying worm driving.
8. the grease lubrication sealing system of push-bench drive system according to claim 5, it is characterised in that：Each passage is worn
When crossing different structure part, O-ring sealing is provided with the contact surface of two structural members.
9. the injection monitoring method that a kind of grease lubrication sealing system using above-mentioned push-bench drive system is carried out, its feature
It is：The push-bench drive system includes cutter plate driver and conveying worm drives, described grease injection monitoring method bag
Include grease injection process and sealing monitoring process；
Grease injection process：Grease pump normal work is determined by the low liquid level warning device of grease pump, grease injection channel with
Pressure protective loop and overflow valve are set between grease tank, the oil pressure relief value P of overflow valve is set1, according to each grease seal chamber
Upper connection pressure sensor feeds back detected pressure value, grease pump startup is controlled by manual mode or automatic mode,
Grease is injected in the grease seal chamber driven to each cutter plate driver and conveying worm, until the pressure of all grease seal intracavitary
Detected value reaches working pressure P2When, grease pump is closed, grease injection, wherein P is completed1＞ P2；
Sealing monitoring process, the detected value of the pressure sensor connected by detecting and controlling system to each grease seal chamber implements prison
Control, realizes the monitoring of grease seal, when the detected pressure value of grease seal intracavitary is less than operating pressure warning value P3When, detection control
System processed automatically controls grease pump and carries out grease injection, until the detected pressure value of each grease seal intracavitary reaches operating pressure
Value；By the annular test chamber and transparent detection pipe of setting, observe and whether there is grease in transparent detection pipe, detected whether close
Oil sealing fat or driving box gear oil penetrate into, and realize the monitoring whether failed to sealing structure.
10. injection monitoring method according to claim 9, it is characterised in that：The working pressure P of the grease seal chamber2
For 3bar, the oil pressure relief value P of the overflow valve1For 5bar.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710446044.0A CN107152529B (en) | 2017-06-14 | 2017-06-14 | The grease lubrication sealing system and injection monitoring method of push-bench drive system |
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| CN107152529B CN107152529B (en) | 2018-05-04 |
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Cited By (1)
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| CN107152529B (en) | 2018-05-04 |
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