CN101659084B - Method and device for automatically tackling blockage - Google Patents
Method and device for automatically tackling blockage Download PDFInfo
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- CN101659084B CN101659084B CN2009101767645A CN200910176764A CN101659084B CN 101659084 B CN101659084 B CN 101659084B CN 2009101767645 A CN2009101767645 A CN 2009101767645A CN 200910176764 A CN200910176764 A CN 200910176764A CN 101659084 B CN101659084 B CN 101659084B
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- Prior art keywords
- lubrication channel
- air
- oil
- channel
- lubrication
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
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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
- F16N33/00—Mechanical arrangements for cleaning lubricating equipment; Special racks or the like for use in draining lubricant from machine parts
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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
- F16N7/385—Central lubrication 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
- F16N33/00—Mechanical arrangements for cleaning lubricating equipment; Special racks or the like for use in draining lubricant from machine parts
- F16N2033/005—Flushing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Accessories For Mixers (AREA)
Abstract
The embodiment of the invention discloses a method and a device for automatically tackling blockage. The method comprises the following steps: detecting the oil pressure of a lubrication channel (7); judging whether the lubrication channel (7) is silted up according to the detected oil pressure of the lubrication channel (7); and conveying air current to the lubrication channel (7) to eliminate the silting up of the lubrication channel when the judging result is 'yes'. By utilizing the invention, the diagnosis, alarm and elimination of the automatic blockage tackling of the sealed axle end can be realized.
Description
Technical field
The embodiment of the invention relates to mechanical field, relates in particular to a kind of method and apparatus of automatically tackling blockage.
Background technology
Stir in the industry at concrete, the sealing structure of shaft end of mixer plays crucial effect to the normal operation that ensures mixer equipment.As shown in Figure 1; Sealing structure of shaft end sketch map for mixer in the prior art; It mainly is made up of lubrication channel (7), moving cover (9), quiet cover (10), oil sealing (11,12) and shaft (13), and wherein, lubrication channel (7) is a moving fit clearance of overlapping between (9) and the quiet cover (10) in the sealing structure of shaft end; Moving cover (9) is fastenedly connected through key with shaft (13), and agitating device is fixed on the shaft.
In the mixer running, agitating device and the moving cover (9) of shaft (13) on being fixed on shaft (13) rotates.On the one hand, sandstone, cement, water etc. constantly overturns in mixer, mix the mixture that the back forms is concrete mud, and constantly the wear and tear seal of lubrication channel of mud gets in the lubrication channel (7); On the other hand, oil pump (1) is carried grease (2) in the lubrication channel (7) of shaft end seal, realized the lubrication to mixer equipment, under the effect of oil pressure, also can stop mud to get in the lubrication channel (7) simultaneously, prevents that lubrication channel (7) is blocked.
Tiny long-time wearing part of sandstone and seal in the mud; Cause sealing structure of shaft end can't effectively stop mud to get in the lubrication channel (7); Along with the mud (8) that gets in the lubrication channel (7) is on the increase, lubrication channel (7) maybe be blocked, as shown in Figure 2; Be the enlarged drawing of shaft end seal lubrication channel (7) after being stopped up by mud (8), the i.e. partial enlarged drawing at Figure 1A place.In Fig. 2; Quiet cover (10) remains static, and moving cover (9) rotate under the drive of shaft (13), tiny for a long time continuous wearing part of sandstone and seal in the mud (8); Cause mud to get in the lubrication channel (7), lubrication channel (7) possibly stopped up by mud (8)
In the prior art; After shaft end seal lubrication channel (7) is stopped up by mud; The general following manner that adopts is carried out unimpeded to lubrication channel (7): scheme 1) stop the operation of mixer equipment, dismounting shaft end seal parts are manually removed the mud that stops up lubrication channel; Scheme 2) the manually obstruction of filling grease eliminating lubrication channel in lubrication channel; Scheme 3) perhaps adopt manual mode in lubrication channel, to carry air to get rid of the obstruction of lubrication channel.
The applicant thinks after the shaft end seal lubrication channel is stopped up by mud, adopts present technology that lubrication channel is carried out unimpeded and has following defective:
1) can not effectively judge the stopping state of lubrication channel; Just be lubricated the unimpeded work of passage when only after lubrication channel is blocked by mud, causing mixer not move; Influenced the service life of mixer; In addition, after solidifying in lubrication channel like the mud that stops up lubrication channel, cause very big difficulty for follow-up unimpeded work; 2) after lubrication channel is stopped up by mud, need stop the mixer operation, influence the production efficiency of mixer greatly; 3) dismounting shaft end seal part is not only wasted time and energy, and the process that removes and installs is loaded down with trivial details, inefficiency, and in the installing/dismounting process invisible increase the hidden danger aspect the personal safety; 4) lubrication channel blocked after, manual filling grease in lubrication channel possibly cause the oil pressure of lubrication channel to continue to increase, and not only can't get rid of mud effectively and stop up, even cause the obstruction of lubrication channel more and more serious, damages lubricated shaft end seal equipment; 5) pass through manually delivery air in lubrication channel, can't realize the automation mechanized operation of unimpeded.
Summary of the invention
The embodiment of the invention provides a kind of method and apparatus of automatically tackling blockage, has realized diagnosis, warning and eliminating to lubrication channel mud plugging fault, remedies the deficiency of artificial unimpeded, has improved the automatization level of production efficiency and unimpeded.
The invention provides a kind of device of automatically tackling blockage, comprise shaft end seal part (310), oil circuit part (320), air path part (330) and control section (340),
Oil circuit part (320) is connected with shaft end seal part (310), is used for carrying grease (2) to the lubrication channel (7) of shaft end seal part (310), and grease (2) is lubricated lubrication channel (7), and stops mud (8) to get into lubrication channel (7);
Air path part (330) is connected with shaft end seal part (310), is used for lubrication channel (7) in shaft end seal part (310) when silting up, and to lubrication channel (7) delivery air, eliminating lubrication channel (7) silts up under the effect of air-flow;
Control section (340); Be connected with shaft end seal part (310), be connected, be connected with air path part (330) with oil circuit part (320); Be used to control the operation of oil circuit part (320) and air path part (330), the lubrication channel (7) of getting rid of shaft end seal part (310) silts up.
Preferably, said oil circuit part (320) specifically comprises:
Oil pump (1) and oil line pipe (5), oil pump (1) is connected through the lubrication channel (7) of oil line pipe (5) with shaft end seal part (310), and grease (2) gets in the lubrication channel (7) through oil line pipe (5) under the effect of oil pump (1).
Preferably, said air path part (320) specifically comprises:
Air feeder (14) and airflow line (15), air feeder (14) is connected through the lubrication channel (7) of airflow line (15) with shaft end seal part (310), and air-flow gets in the lubrication channel (7) through airflow line (15) under the effect of air feeder (14).
Preferably, said control section (340) specifically comprises:
Detecting unit (341) is used to detect the partly oil pressure of (310) lubrication channel (7) of shaft end seal;
Judging unit (342) is connected with detecting unit (341), is used for the oil pressure according to the detected lubrication channel of detecting unit (341) (7), judges whether lubrication channel (7) silts up;
Processing unit (343) is connected with judging unit (342), is used for judging lubrication channel (7) when silting up, and the air feeder (14) of control air path part (330) is to lubrication channel (7) delivery air silting up with eliminating lubrication channel (7).
Preferably, said detecting unit (341) specifically comprises:
Pressure gauge or overflow valve, said Pressure gauge or overflow valve are installed in the oil line pipe (5) of oil circuit part (320).
Preferably, said judging unit (342) specifically is used for,
According to the oil pressure of the detected lubrication channel of detecting unit (341) (7), judge whether the oil pressure of lubrication channel (7) is higher than preset pressure; When judged result is the oil pressure of lubrication channel (7) when being higher than preset pressure, lubrication channel (7) silts up.
Preferably, said processing unit (343) also is used for,
After the time of lubrication channel (7) delivery air reaches preset time threshold, stop air feeder (14) at air feeder (14) to lubrication channel (7) delivery air.
Preferably, said control section (340) also comprises:
Alarm unit (344) is connected with processing unit (343), is used for processing unit (343) and stops behind lubrication channel (7) delivery air, and lubrication channel (7) carries out alarm when silting up again.
Preferably, said alarm unit (344) also is used for,
Statistics alarm unit (344) alarm times of reporting to the police, when said alarm times reached preset alarm times threshold value, notifier processes unit (343) stopped oil pump (1) operation, stop air feeder (14) operation, stop the mixer operation.
The present invention also provides a kind of method of automatically tackling blockage, may further comprise the steps:
Detect the oil pressure of lubrication channel (7);
Judge according to the oil pressure of detected lubrication channel (7) whether lubrication channel (7) silts up;
When judged result when being, to lubrication channel (7) delivery air to get rid of silting up of lubrication channel (7).
Preferably, the oil pressure of said detection lubrication channel (7) specifically comprises:
Oil pressure according to Pressure gauge or overflow valve detection lubrication channel (7).
Preferably, said oil pressure according to detected lubrication channel (7) is judged whether silting up of lubrication channel (7), specifically comprises:
When the oil pressure of detected lubrication channel (7) is higher than preset pressure, judge that said lubrication channel silts up; When the oil pressure of detected lubrication channel (7) is not higher than preset pressure, judge that lubrication channel (7) does not silt up.
Preferably,, specifically comprise to get rid of silting up of lubrication channel (7) to lubrication channel (7) delivery air:
Stop using oil pump (1) in lubrication channel (7), to carry grease (2), start air feeder (14) delivery air in lubrication channel (7), get rid of silting up of lubrication channel (7) to use said air-flow.
Preferably,, also comprise to get rid of silting up of lubrication channel (7) to lubrication channel (7) delivery air:
Start air feeder (14) delivery air in lubrication channel (7), get rid of silting up of lubrication channel (7) with the grease that uses said air-flow and oil pump (1) to carry to lubrication channel (7).
Preferably, said startup air feeder (7) also comprises to lubrication channel (7) delivery air afterwards:
Record air feeder (7) is to the time of lubrication channel (7) delivery air, when the said time reaches preset time threshold, stops air feeder (14) to lubrication channel (7) delivery air and detect the oil pressure of lubrication channel (7).
Preferably, the said air feeder (14) that stops also to comprise to lubrication channel (7) delivery air and detect the oil pressure of lubrication channel (7) afterwards:
When the oil pressure of detected lubrication channel (7) is higher than said preset pressure, judge that lubrication channel (7) silts up, carries out alarm.
Preferably, the said alarm that carries out also comprises afterwards:
The number of times of record alarm when the number of times of said alarm reaches preset alarm threshold value, stops oil pump (1) operation, stops air feeder (14) operation, stops the mixer operation.
Compared with prior art, the embodiment of the invention has the following advantages: in the embodiment of the invention, judge according to the oil pressure situation of lubrication channel whether lubrication channel mud takes place stop up; Stopped up the back at lubrication channel by mud and carry out the fault eliminating through the mode of delivery air; And alarm threshold value is set when not getting rid of the obstruction of lubrication channel through the air pressure mode, and after repeatedly reporting to the police, stop the operation of mixer, realized diagnosis, warning and the eliminating of shaft end seal lubrication channel plugging fault; Prolonged the working life of shaft end seal simultaneously; And the method and apparatus of shaft end seal automatically tackling blockage of the present invention is practical, and intelligent level is high, has lower maintenance cost.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is an axle end sealing device structure chart in the prior art;
Fig. 2 is the partial structurtes enlarged drawing that the lubrication channel of shaft end seal is stopped up by mud;
Fig. 3 is a kind of automatically tackling blockage schematic diagram of device that the embodiment of the invention one provides;
Fig. 4 is a kind of automatically tackling blockage structure drawing of device that the embodiment of the invention two provides;
Fig. 5 is control section (340) structural representation that the embodiment of the invention three provides
Fig. 6 is the method flow diagram of the automatically tackling blockage of the embodiment of the invention four;
Fig. 7 is the method flow diagram of the automatically tackling blockage of the embodiment of the invention five;
Fig. 8 is the method flow diagram of the automatically tackling blockage of the embodiment of the invention six;
The specific embodiment
Core concept of the present invention is: judge according to the oil pressure situation of shaft end seal lubrication channel whether lubrication channel silts up; And preset the preset pressure that lubrication channel silts up; When the oil pressure of lubrication channel is higher than preset pressure, judge that said lubrication channel silts up; After judging that said lubrication channel silts up, stop oil pump to lubricated sensible in the pumping grease, start air feeder delivery air in lubrication channel simultaneously, the mud of lubrication channel is silted in discharge up under the effect of air pressure; Or when judging that lubrication channel silts up, start air feeder delivery air in lubrication channel, and continue the operation of operation oil pump and in lubrication channel, carry grease, the mud of eliminating lubrication channel silts up under oil pressure and air pressure act on simultaneously; After starting air feeder delivery air in lubrication channel and reaching preset time, stop the air feeder operation; When the oil pressure that after stopping air feeder operation, detects lubrication channel surpasses preset pressure again, carry out alarm, and the number of times of statistics alarm, when the number of times of above-mentioned alarm reaches preset alarm threshold value, stop the mixer operation; As another preferred embodiment of the present invention; After judging that according to the oil pressure of lubrication channel lubrication channel silts up;, adds up the lubrication channel delivery air number of run of air feeder before arranging silt at the startup air feeder; When the number of run of air feeder reaches preset number of starts threshold value, carry out alarm, operation air feeder delivery air in lubrication channel is not arranged silt when the number of run of air feeder reaches preset frequency threshold value.Diagnosis, warning and eliminating have been realized to the shaft end seal automatically tackling blockage.
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
As shown in Figure 3, be a kind of automatically tackling blockage schematic diagram of device that the embodiment of the invention one provides, comprise shaft end seal part (310), oil circuit part (320), air path part (330) and control section (340).
Oil circuit part (320) is connected with shaft end seal part (310), is used for carrying grease to the lubrication channel of shaft end seal part (310), and grease is lubricated lubrication channel, and stops mud to get into lubrication channel;
Air path part (330) is connected with shaft end seal part (310), is used for when the lubrication channel of shaft end seal part (310) silts up, to the lubrication channel delivery air, under the effect of air-flow, gets rid of silting up of lubrication channel;
Control section (340); Be connected with shaft end seal part (310), be connected, be connected with air path part (330) with oil circuit part (320); Be used to detect the oil pressure of shaft end seal part (310) lubrication channel; When lubrication channel silts up, the operation of control oil circuit part (320) and air path part (330), the lubrication channel of getting rid of shaft end seal part (310) silts up.
As shown in Figure 4, a kind of automatically tackling blockage structure drawing of device for the embodiment of the invention two provides specifically comprises:
Shaft end seal part (310); Specifically comprise: lubrication channel (7), moving cover (9), quiet cover (10), float grease seal (11), outside framework oil seal (12) and shaft (13); Quiet cover (10) is fixed on the frame; Be fastenedly connected through key between moving cover (9) and the shaft (13), the fit clearance between moving cover (9) and the quiet cover (10) is lubrication channel (7), and lubrication channel (7) is generally mazy structure.On quiet cover (10), offer oil circuit hole or gas circuit hole, be used for carrying grease or air-flow to lubrication channel.
Oil circuit part (320); Specifically comprise: oil pump (1) and oil line pipe (5); Oil pump (1) is connected with the lubrication channel (7) of shaft end seal (310) through oil line pipe (5), and grease (2) is under the effect of oil pump (1), through oil line pipe (5); The oil circuit hole of offering on shaft end seal part (310) quiet cover (10) gets in the lubrication channel (7), does not draw among the figure.
Air path part (330); Specifically comprise: air feeder (14) and airflow line (15); Air feeder (14) is connected through the lubrication channel of airflow line (15) with shaft end seal part (310), and air-flow is under the effect of air feeder (14), through airflow line (15); The gas circuit hole of offering on shaft end seal part (310) quiet cover (10) gets in the lubrication channel (7), does not draw among the figure.
Preferably, can also realize being connected of oil circuit part (320) and shaft end seal part (310) through valve piece (6) is set, air path part (330) is connected with shaft end seal part (310); Concrete; The valve piece is provided with oil nozzle mouth and asphalt channel in (6), and valve mouth and gas channel, and oil circuit part (320) gets into lubrication channel (7) through oil nozzle mouth in the valve piece (6) and asphalt channel; Air path part (330) gets into lubrication channel (7) through valve mouth in the valve piece (6) and gas channel, specifically sees shown in Figure 4.
Configuration oil nozzle mouth and asphalt channel in valve piece (6); The oil nozzle mouth of valve piece (6) is connected with an end of oil line pipe (5); The asphalt channel of valve piece (6) is connected with the lubrication channel (7) of shaft end seal part (310); Grease (2) behind the oil nozzle mouth and asphalt channel through oil line pipe (5), said valve piece (6), gets in the lubrication channel (7) of shaft end seal part (310) under the effect of oil pump (1); In valve piece (6), dispose valve mouth and gas channel; Be connected through airflow line (15) between air feeder (14) and the valve piece (6); The valve mouth of valve piece (6) is connected with an end of airflow line (15), and the gas channel of valve piece (6) is connected with the lubrication channel (7) of shaft end seal part (310), and air-flow is under the effect of air feeder (14); Behind the valve mouth and gas channels through airflow line (15), said valve piece (13), get in the lubrication channel (7) of shaft end seal part (310).
Among the present invention; Oil circuit part (320) is connected with shaft end seal part (310); Or in being connected of air path part (330) and shaft end seal part (310), realize all belonging to protection scope of the present invention with shaft end seal part (310) through valve piece (6) being set or valve piece (6) not being set.
As shown in Figure 5, control section (340) structural representation for the embodiment of the invention three provides specifically comprises:
Detecting unit (341) is used to detect the partly oil pressure of (310) lubrication channel (7) of shaft end seal; Judging unit (342) is connected with detecting unit (341), is used for the oil pressure according to the detected lubrication channel of detecting unit (341) (7), judges whether lubrication channel (7) silts up; Processing unit (343) is connected with judging unit (342), is used for judging lubrication channel (7) when silting up, and the air feeder (14) of control air path part (330) is to lubrication channel (7) delivery air silting up with eliminating lubrication channel (7); Alarm unit (344) is connected with processing unit (343), is used for after utilizing air path part (330) to get rid of silting up of lubrication channel (7), and lubrication channel (7) carries out alarm when silting up again.
Detecting unit (341) specifically comprises: Pressure gauge (3) or overflow valve (4), said Pressure gauge (3) or overflow valve (4) are installed in the oil line pipe (5) of oil circuit part (320), or are installed in the oil line pipe (5) between oil pump (1) and the valve piece (6).
Judging unit (342) specifically is used for the oil pressure according to the detected lubrication channel of detecting unit (341) (7), judges whether the oil pressure of lubrication channel (7) is higher than preset pressure; When judged result is the oil pressure of lubrication channel (7) when being higher than preset pressure, lubrication channel (7) silts up.
Processing unit (343) also is used at air feeder (14) after the time of lubrication channel (7) delivery air reaches preset time threshold, stopping air feeder (14) to lubrication channel (7) delivery air.
Alarm unit (344) is used for processing unit (343) and stops behind lubrication channel (7) delivery air, and lubrication channel (7) carries out alarm when silting up again; And statistics alarm unit (344) alarm times of reporting to the police, when said alarm times reached preset alarm times threshold value, notifier processes unit (343) stopped oil pump (1) operation, stop air feeder (14) operation, stop the mixer operation.
Control section (340) can be a computer; The oil pressure that is used for shaft end seal part (310) lubrication channel; The operation of control oil circuit part (320) and air path part (330); The lubrication channel of getting rid of shaft end seal part (310) silts up, and other equipment with control action all belong to protection scope of the present invention.Said judging unit (342), processing unit (343) and alarm unit (344) can have other chips of control action for CPU, PLC, single-chip microcomputer etc., specifically adopt which kind of process chip all to belong to protection scope of the present invention.
As shown in Figure 6, the method for a kind of automatically tackling blockage that provides for the embodiment of the invention four, said method comprises the steps:
The oil pressure of step 301, detection lubrication channel;
Concrete, the detection of the oil pressure situation of lubrication channel is comprised dual mode, detect lubrication channel oil pressure situation and detect lubrication channel oil pressure situation according to Pressure gauge according to overflow valve.
As shown in Figure 7; The method of a kind of automatically tackling blockage that provides for the embodiment of the invention five; Wherein, at lubrication channel the back taking place to stop up and start air feeder delivery air in lubrication channel, after air feeder is out of service, detects lubrication channel again and stop up; Carry out alarm and write down alarm times, said method comprises the steps:
Start oil pump, carry grease to shaft end seal part lubrication channel, lubricated mixer equipment, grease plays the effect of sealing under the oil pressure effect simultaneously, and at this moment, air feeder is in holding state.
Oil pump is carried in the process of grease to lubrication channel; Oil pressure in the lubrication channel keeps keeping stable within the specific limits; When lubrication channel silts up; Oil pressure in the lubrication channel raises, the oil pressure situation of utilizing the Pressure gauge that is installed on the oil line pipe or overflow valve to detect lubrication channel, and judge according to the oil pressure situation of detected lubrication channel whether lubrication channel silts up.
Oil pressure when silting up through setting lubrication channel judges whether lubrication channel silts up, and is concrete, when the oil pressure of lubrication channel is not higher than preset pressure, judges that said lubrication channel silts up; When the oil pressure of lubrication channel is higher than preset pressure, judge that said lubrication channel silts up.Said preset pressure can ensure for the overflow oil pressure of manometric overflow oil pressure, overflow valve or according to practical operation experience and/or work on the spot situation under the prerequisite of maximum operational efficiency of mixer, make the shaft end seal lubrication channel silt the pressure of probability minimum up.The concrete setting of adopting which kind of mode to carry out preset pressure all belongs to protection scope of the present invention.
The situation of silting up that preset pressure value when adopting preset lubrication channel to silt up is judged lubrication channel has realized the accurate judgement of situation that lubrication channel is silted up.Under suitable preset pressure; Even the mud in the entering lubrication channel is less, do not result in blockage to lubrication channel, the oil pressure that also can detect in the lubrication channel is higher than preset pressure; The row who is lubricated passage is become silted up, and has realized that lubrication channel silts the accurate judgement of situation and eliminating in time up.
Preset pressure value when the setting lubrication channel silts up in the lubrication channel is manometric overflow oil pressure P1; The oil pressure situation that detects in the lubrication channel according to Pressure gauge is specially; Grease gets into lubrication channel through oil line pipe under the effect of oil pump, when the oil pressure in the lubrication channel occurs when unusual, Pressure gauge can directly detect the oil pressure variation of lubrication channel in real time; The oil pressure P1 when silting up according to preset lubrication channel and the oil pressure of the detected lubrication channel of Pressure gauge compare; Whether the oil pressure of judging lubrication channel surpasses P1, when the oil pressure of lubrication channel surpasses P1, and execution in step 403;
Or,
Preset pressure value when the setting lubrication channel silts up in the lubrication channel is the overflow oil pressure P2 of overflow valve; Oil pressure situation according in the overflow valve indirect detection lubrication channel is specially, and after lubrication channel silted up, the oil pressure in the lubrication channel raise; When the oil pressure of lubrication channel surpasses P2; Grease in the lubrication channel carries out release through overflow valve, therefore, and can be through the oil pressure situation of the indirect detection lubrication channel of overflow valve.When the oil pressure of detected lubrication channel surpasses P2, execution in step 403
Concrete; Judging unit judges according to the oil pressure situation in manometric overflow oil pressure P1 and the real-time detected lubrication channel of Pressure gauge whether lubrication channel silts up, if when the oil pressure in the current lubrication channel is higher than P1, judges that lubrication channel silts up; Execution in step 405; Otherwise, judge that lubrication channel silts up, oil pump carries grease normal to lubrication channel;
Or,
Judging unit according to the overflow oil pressure P2 of overflow valve and overflow valve pass real-time indirect detection to the oil pressure situation of lubrication channel judge whether lubrication channel silts up; When if the oil pressure in the current lubrication channel is higher than P2; Judge that lubrication channel silts up, execution in step 405, otherwise; Judge that lubrication channel silts up, oil pump carries grease normal to lubrication channel.
When the oil pressure in judging current lubrication channel was not higher than preset pressure, the conveying grease in lubrication channel was normal, and lubrication channel silts up, and oil pump continues the pumping grease, and the lubricated and shaft end seal effect of mixer equipment is provided.
When the oil pressure in judging current lubrication channel is higher than preset pressure, show that lubrication channel silts up, need carry out desilting to lubrication channel and handle.
Control section stops oil pump immediately and in lubrication channel, carries grease; And startup air feeder operation; In lubrication channel, carry the air-flow of certain pressure, concrete, control module starts air feeder is carried air-flow from certain pressure to lubrication channel; The stream pressure of said conveying can be confirmed according to the situation of silting up of practical operation experience, lubrication channel etc.; For example, when repeatedly adopting streamer mode not get rid of to silt the mud of lubrication channel up, can silt up according to the mud that the pressure that the practical operation experience suitably increases air-flow is got rid of lubrication channel.
Because of air-flow has the characteristics of all-pervasive, strong vibration property and thump property, after lubrication channel silted up, air-flow passed the grease in lubrication channel and the lubrication channel, impacts the mud that gets into lubrication channel and mud is discharged lubrication channel.
Behind step 406, the air feeder time threshold that delivery air arrival is preset in lubrication channel, stop the air feeder operation, start oil pump and in lubrication channel, carry grease, and detect the oil pressure in the lubrication channel in real time.
Air feeder is imported the air-flow of certain pressure and is discharged the mud that silts lubrication channel up in lubrication channel; After air-flow continues a period of time; Control section stops air feeder delivery air in lubrication channel, starts oil pump once more and carries grease to safeguard the lubricated and sealing function in the mixer running to lubrication channel.
Setting preset air-flow duration threshold value is T, and promptly when using air feeder the time of delivery air reaches time threshold T in lubrication channel, control section stops air feeder delivery air in lubrication channel; When using air feeder time of delivery air in lubrication channel not reach air-flow duration threshold value T, continue the operation air feeder, delivery air in lubrication channel.
Should set under the situation of silting up, practical operation experience according to lubrication channel and the prerequisite that does not influence the operation of mixer equipment to greatest extent by preset air-flow duration threshold value T; The setting of preset air-flow duration threshold value T simultaneously need guarantee to greatest extent that also in air-flow fed the T of lubrication channel, the grease in the lubrication channel can provide the lubrication of mixer equipment.
For example; Setting preset air-flow duration threshold value T is 30s; When judging that lubrication channel silts up; Stop oil pump work and start air feeder is carried certain pressure in lubrication channel air-flow, when air feeder reaches unimpeded duration threshold value 30s running time, stop the air feeder operation immediately; When air feeder does not reach air-flow duration threshold value 30s running time, continue operation air feeder delivery air in lubrication channel.In addition; This air-flow duration, threshold value T can carry out suitable adjustment according to actual conditions; The raising air-flow duration that can be suitable under the situation of mixer ageing equipment, shaft end seal weak effect is to improve the efficient that the mud of lubrication channel is silted in disposable cleaning up; Or when repeatedly using streamer mode not get rid of lubrication channel to silt up, can suitably improve air-flow duration threshold value T, or the like.
Stop air feeder delivery air in lubrication channel; Start oil pump and carry grease to lubrication channel; Pressure gauge signal or overflow valve detect the oil pressure situation in the lubrication channel in real time, judge according to the oil pressure in the detected lubrication channel whether lubrication channel silts up again; Oil pressure in judging lubrication channel is higher than preset pressure, judge that lubrication channel silts up again, or silting up in the lubrication channel is not excluded execution in step 408; Oil pressure in judging lubrication channel is not higher than preset pressure, judges that lubrication channel silts up, returns execution in step 402.
After lubrication channel silts up; Delivery air is arranged silt in lubrication channel, when stopping air feeder in said lubrication channel behind the delivery air, when the oil pressure that detects lubrication channel is higher than preset pressure; Judge that lubrication channel silts up again; Alarm unit sends alarm, and the record alarm times, on the basis of former alarm times, adds 1 warning.
When the accumulative total alarm times does not reach the alarm threshold value N of setting, return step 405, continue operation air feeder delivery air in lubrication channel, get rid of silting up of lubrication channel.The set basis of this alarm threshold value N is actual silts situation up and operating experience is set.
When the accumulative total alarm times reaches preset alarm threshold value N; Be illustrated in the said alarm threshold value N scope; Adopt the air pressure mode to fail to get rid of the mud that silts up in the lubrication channel, perhaps to silt situation up serious for lubrication channel, and the mud of the lubrication channel that for example silts up has solidified etc. under the situation; Under the situation such as can't adopt that the air pressure mode is got rid of, execution in step 409.
When alarm times reaches the alarm threshold value N of setting; The control section judgement adopts air feeder delivery air in lubrication channel can't get rid of the mud that silts lubrication channel up; Control section stops the air feeder operation; Stop the oil pump operation, stop the mixer operation, adopt manual mode to remove the mud that silts lubrication channel up.
Need to prove; In the embodiment of the invention four; After the lubrication channel of diagnosis shaft end seal silts up; Stop oil pump immediately and in lubrication channel, carry grease, and start air feeder is carried certain pressure in lubrication channel air-flow, discharge the mud that silts lubrication channel up under the effect separately at air-flow.The embodiment of the invention has realized diagnosis, warning and the exclusion process of the automatically tackling blockage of shaft end seal lubrication channel.
The embodiment of the invention includes but not limited to after judging that lubrication channel silts up; Stop the oil pump operation; And startup air feeder delivery air in lubrication channel; Realize automatically tackling blockage under the effect separately at air-flow to the mud that silts lubrication channel up; The real down unimpeded to lubrication channel of the oil pressure acting in conjunction that the air-flow that can also realize carrying in lubrication channel through air feeder and oil pump are carried in lubrication channel promptly after judging that lubrication channel silts up, continues to move oil pump and in lubrication channel, carries grease; Start air feeder simultaneously and in lubrication channel, carry the air-flow of certain pressure, get rid of silting up of lubrication channel under the oil pressure in lubrication channel and the acting in conjunction of air-flow.
As shown in Figure 8; The method of a kind of automatically tackling blockage that provides for the embodiment of the invention six; Wherein, after lubrication channel silted up, the record air feeder was to the number of times of lubrication channel delivery air; And judge air feeder the number of starts whether be higher than preset air feeder number of starts threshold value, specifically comprise the steps:
The oil pressure of step 501, detection lubrication channel.
The oil pressure that detects lubrication channel has dual mode, and according to the oil pressure situation of Pressure gauge or overflow valve detection lubrication channel, the oil pressure that specifically adopts above-mentioned which kind of mode to detect lubrication channel all belongs to protection scope of the present invention.
Step 502, when the oil pressure of lubrication channel is higher than preset pressure, said lubrication channel silts up.
When the oil pressure of lubrication channel is higher than preset pressure; Judge that lubrication channel silts up; Launch air feeder and in lubrication channel, carry the air-flow of certain pressure to discharge silting up of lubrication channel, there is dual mode silting up of lubrication channel of eliminating, under the independent effect of air-flow, gets rid of and silts up; Or get rid of silting up of lubrication channel under the acting in conjunction of oil pressure in lubrication channel and air-flow, the oil pressure that specifically adopts above-mentioned which kind of mode to detect lubrication channel all belongs to protection scope of the present invention.
The number of starts of step 503, statistics air feeder, and judge that whether the number of starts of air feeder surpasses preset number of starts threshold value, when the number of starts of air feeder during, execution in step 504 greater than the number of starts threshold value preset, otherwise, execution in step 505.
After judging that lubrication channel silts up; The number of starts of statistics air feeder, when the number of starts of air feeder during greater than preset number of starts threshold value, the control system sends alarm; Stop the air feeder operation this moment; Stop oil pump and in lubrication channel, carry grease, stop air feeder delivery air in lubrication channel, and with the number of starts zero clearing of air feeder.
Step 504, control section send alarm, stop the mixer operation, and with the zero clearing of the air feeder number of starts.
Step 505, on the air feeder number of starts, add 1 time, and start air feeder, when air feeder reaches preset time threshold running time, stop the air feeder operation to the lubrication channel delivery air.
When the number of starts of judging air feeder does not surpass preset number of starts threshold value; Can adopt dual mode to get rid of silting up of lubrication channel; Promptly start air feeder delivery air in lubrication channel and get rid of silting up of lubrication channel, and stop oil pump and in lubrication channel, carry grease; Or continue the operation oil pump and in lubrication channel, carry grease, start air feeder delivery air in lubrication channel simultaneously and get rid of silting up of lubrication channel, under the acting in conjunction of air-flow and oil pressure, get rid of silting up of lubrication channel.After lubrication channel silts up, specifically adopt above-mentioned which kind of mode to get rid of silting up of lubrication channel and all belong to protection scope of the present invention.
The oil pressure of step 506, detection lubrication channel also judges whether lubrication channel silts up.After judging that lubrication channel silts up, return the step 503 of the statistics air feeder number of starts; After judging that lubrication channel silts up, normally move mixer and oil pump.
Above embodiment is the preferred embodiments of the present invention; Various combination to each several part in the foregoing description belongs to protection scope of the present invention equally; The method and apparatus of automatically tackling blockage of the present invention is applied to realize in the shaft end seal system of other different structures, dissimilar and different purposes the function of automatically tackling blockage, and said method and apparatus all belongs to protection scope of the present invention.
The method and apparatus of the automatically tackling blockage that the application of the invention the foregoing description provides; Control section detects lubrication channel oil pressure situation in real time according to Pressure gauge signal or overflow valve transducing signal; After judging that lubrication channel is silted up, adopt the air pressure mode to act on separately, or the lubrication channel that air pressure mode and oil pressure mode act on silting up simultaneously carry out automatically tackling blockage; And lubrication channel is being carried out in the unimpeded process alarm threshold value being set; When alarm times reached the alarm threshold value of setting, control section stopped the mixer operation, had realized diagnosis, alarm and the exclusion process of automatically tackling blockage.The present invention is effectively realizing silting Fault Diagnosis, warning and eliminating up simultaneously, the working life that has prolonged axle head, and the method and apparatus of shaft end seal automatically tackling blockage of the present invention is practical, and intelligent level is high, has lower maintenance cost.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosedly be merely several specific embodiment of the present invention, still, the embodiment of the invention is not limited thereto, any those skilled in the art can think variation all should fall into the protection domain of the embodiment of the invention.
Claims (17)
1. the device of an automatically tackling blockage is characterized in that, comprises shaft end seal part (310), oil circuit part (320), air path part (330) and control section (340),
Oil circuit part (320) is connected with shaft end seal part (310), is used for carrying grease (2) to the lubrication channel (7) of shaft end seal part (310), and grease (2) is lubricated lubrication channel (7), and stops mud (8) to get into lubrication channel (7);
Air path part (330) is connected with shaft end seal part (310), is used for lubrication channel (7) in shaft end seal part (310) when silting up, and to lubrication channel (7) delivery air, eliminating lubrication channel (7) silts up under the effect of air-flow;
Control section (340); Be connected with shaft end seal part (310), be connected, be connected with air path part (330) with oil circuit part (320); Be used to control the operation of oil circuit part (320) and air path part (330), the lubrication channel (7) of getting rid of shaft end seal part (310) silts up.
2. device as claimed in claim 1 is characterized in that, said oil circuit part (320) specifically comprises:
Oil pump (1) and oil line pipe (5), oil pump (1) is connected through the lubrication channel (7) of oil line pipe (5) with shaft end seal part (310), and grease (2) gets in the lubrication channel (7) through oil line pipe (5) under the effect of oil pump (1).
3. device as claimed in claim 1 is characterized in that, said air path part (320) specifically comprises:
Air feeder (14) and airflow line (15), air feeder (14) is connected through the lubrication channel (7) of airflow line (15) with shaft end seal part (310), and air-flow gets in the lubrication channel (7) through airflow line (15) under the effect of air feeder (14).
4. device as claimed in claim 1 is characterized in that, said control section (340) specifically comprises:
Detecting unit (341) is used to detect the partly oil pressure of (310) lubrication channel (7) of shaft end seal;
Judging unit (342) is connected with detecting unit (341), is used for the oil pressure according to the detected lubrication channel of detecting unit (341) (7), judges whether lubrication channel (7) silts up;
Processing unit (343) is connected with judging unit (342), is used for judging lubrication channel (7) when silting up, and control air path part (330) is to lubrication channel (7) delivery air silting up with eliminating lubrication channel (7).
5. device as claimed in claim 4 is characterized in that, said detecting unit (341) specifically comprises:
Pressure gauge or overflow valve, said Pressure gauge or overflow valve are installed in the oil line pipe (5) of oil circuit part (320).
6. device as claimed in claim 4 is characterized in that, said judging unit (342) specifically is used for,
According to the oil pressure of the detected lubrication channel of detecting unit (341) (7), judge whether the oil pressure of lubrication channel (7) is higher than preset pressure; When judged result is the oil pressure of lubrication channel (7) when being higher than preset pressure, lubrication channel (7) silts up.
7. device as claimed in claim 4 is characterized in that, said processing unit (343) also is used for,
After the time of lubrication channel (7) delivery air reaches preset time threshold, stop air feeder (14) at air feeder (14) to lubrication channel (7) delivery air.
8. device as claimed in claim 4 is characterized in that, said control section (340) also comprises:
Alarm unit (344) is connected with processing unit (343), is used for processing unit (343) and stops behind lubrication channel (7) delivery air, and lubrication channel (7) carries out alarm when silting up.
9. device as claimed in claim 8 is characterized in that, said alarm unit (344) also is used for,
Statistics alarm unit (344) alarm times of reporting to the police, when said alarm times reached preset alarm times threshold value, notifier processes unit (343) stopped oil pump (1) operation, stop air feeder (14) operation, stop the mixer operation.
10. the method for an automatically tackling blockage is characterized in that, may further comprise the steps:
Detect the oil pressure of lubrication channel (7);
Judge according to the oil pressure of detected lubrication channel (7) whether lubrication channel (7) silts up;
When judged result when being, to lubrication channel (7) delivery air to get rid of silting up of lubrication channel (7).
11. method as claimed in claim 10 is characterized in that, the oil pressure of said detection lubrication channel (7) specifically comprises:
Oil pressure according to Pressure gauge or overflow valve detection lubrication channel (7).
12. method as claimed in claim 10 is characterized in that, said oil pressure according to detected lubrication channel (7) is judged whether silting up of lubrication channel (7), specifically comprises:
When the oil pressure of detected lubrication channel (7) is higher than preset pressure, judge that lubrication channel (7) silts up; When the oil pressure of detected lubrication channel (7) is not higher than preset pressure, judge that lubrication channel (7) does not silt up.
13. method as claimed in claim 10 is characterized in that,, specifically comprises to get rid of silting up of lubrication channel (7) to lubrication channel (7) delivery air:
Stop using oil pump (1) in lubrication channel (7), to carry grease (2), start air feeder (14) delivery air in lubrication channel (7), get rid of silting up of lubrication channel (7) to use said air-flow.
14. method as claimed in claim 10 is characterized in that,, also comprises to get rid of silting up of lubrication channel (7) to lubrication channel (7) delivery air:
Start air feeder (14) delivery air in lubrication channel (7), get rid of silting up of lubrication channel (7) with the grease that uses said air-flow and oil pump (1) to carry to lubrication channel (7).
15., it is characterized in that said startup air feeder (7) also comprises to lubrication channel (7) delivery air afterwards like claim 13 or 14 described methods:
Record air feeder (7) is to the time of lubrication channel (7) delivery air, when the said time reaches preset time threshold, stops air feeder (14) to lubrication channel (7) delivery air and detect the oil pressure of lubrication channel (7).
16. method as claimed in claim 15 is characterized in that, the said air feeder (14) that stops also to comprise to lubrication channel (7) delivery air and detect the oil pressure of lubrication channel (7) afterwards:
When the oil pressure of detected lubrication channel (7) is higher than said preset pressure, judge that lubrication channel (7) silts up, carries out alarm.
17. method as claimed in claim 16 is characterized in that, the said alarm that carries out also comprises afterwards:
The number of times of record alarm when the number of times of said alarm reaches preset alarm threshold value, stops oil pump (1) operation, stops air feeder (14) operation, stops the mixer operation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101767645A CN101659084B (en) | 2009-09-21 | 2009-09-21 | Method and device for automatically tackling blockage |
| PCT/CN2010/074283 WO2011032406A1 (en) | 2009-09-21 | 2010-06-22 | Automatic silting- removing method for shaft sealing device of concrete mixer and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101767645A CN101659084B (en) | 2009-09-21 | 2009-09-21 | Method and device for automatically tackling blockage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101659084A CN101659084A (en) | 2010-03-03 |
| CN101659084B true CN101659084B (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101767645A Expired - Fee Related CN101659084B (en) | 2009-09-21 | 2009-09-21 | Method and device for automatically tackling blockage |
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| Country | Link |
|---|---|
| CN (1) | CN101659084B (en) |
| WO (1) | WO2011032406A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101659084B (en) * | 2009-09-21 | 2012-01-11 | 三一重工股份有限公司 | Method and device for automatically tackling blockage |
| CN102886823B (en) * | 2012-09-11 | 2014-09-10 | 三一汽车制造有限公司 | Transit mixer truck and control method thereof |
| CN107804632A (en) * | 2017-09-12 | 2018-03-16 | 合肥富通环保新能源科技有限公司 | A kind of fault detection system for house refuse Geldart-D particle |
| CN108678766B (en) * | 2018-07-03 | 2024-07-19 | 中国铁建重工集团股份有限公司 | Slag discharging system of heading machine and heading machine equipment |
| TWI828485B (en) * | 2021-03-02 | 2024-01-01 | 王國瑋 | oil supply unit |
| TWI794758B (en) * | 2021-03-02 | 2023-03-01 | 王國瑋 | oil supply device |
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Also Published As
| Publication number | Publication date |
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| WO2011032406A1 (en) | 2011-03-24 |
| CN101659084A (en) | 2010-03-03 |
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