CN112377607B - Bidirectional leakage-proof underwater speed reducer - Google Patents
Bidirectional leakage-proof underwater speed reducer Download PDFInfo
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- CN112377607B CN112377607B CN202011374934.3A CN202011374934A CN112377607B CN 112377607 B CN112377607 B CN 112377607B CN 202011374934 A CN202011374934 A CN 202011374934A CN 112377607 B CN112377607 B CN 112377607B
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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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
- F16H—GEARING
- F16H57/00—General details of gearing
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/01—Monitoring wear or stress of gearing elements, e.g. for triggering maintenance
- F16H2057/018—Detection of mechanical transmission failures
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a bidirectional leakage-proof underwater speed reducer, which comprises: the input end of the speed reducer body is provided with a connecting hole for the motor rotating shaft to extend into, and the output end of the speed reducer body is provided with an output shaft; an air storage bag connected with an air pump through an air pipe is arranged inside the speed reducer body; a liquid level sensor and a pressure sensor are arranged on the outer wall of the speed reducer body; the output leakage-proof mechanism comprises a bidirectional magnetic oil seal arranged on the contact surface of the output shaft and the speed reducer body, and a leakage-proof box arranged outside the output shaft; the leakage-proof box consists of an inner box body and an outer box body; the outer box body is covered outside the inner box body; the outer box body follows the output shaft; and the controller controls the air pump to open/close according to the data acquired by the liquid level sensor and the pressure sensor so as to balance the pressure difference inside and outside the speed reducer body by adjusting the size of the air storage bag. The carbon fiber sealing gasket and the output leakage-proof mechanism are arranged, so that bidirectional leakage prevention of the underwater speed reducer is realized, the sealing performance of the speed reducer is effectively improved, and the service life is prolonged.
Description
Technical Field
The invention relates to the technical field of speed reducers, in particular to a bidirectional leakage-proof underwater speed reducer.
Background
The speed reducer is a mechanical device which plays a role in matching rotational speed and transmitting torque between a prime mover and a working machine or an actuator, is widely applied to modern machines, and is basically applied to various industrial fields. However, many times the speed reducer needs to be applied under water, for example, the submersible water impeller is widely used in the sewage treatment industry, and the speed reducer has the functions of pushing the water medium to flow, increasing the flow rate of the water medium in the treatment tank, preventing the sludge from settling and improving the sewage treatment efficiency, and is a key device of the sewage treatment plant when working under water. The speed reducer is a core component in the equipment, is arranged between the motor and the impeller, and is used for reducing the rotating speed and increasing the torque so as to meet the requirements of the sewage treatment process.
For the speed reducer used underwater, the tightness is a very critical factor, and the service life of the speed reducer is directly influenced, so that how to design an underwater speed reducer with a reasonable structure and good tightness is very necessary.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide a bidirectional leakage-proof underwater speed reducer, which realizes bidirectional leakage prevention of the underwater speed reducer through the arrangement of the carbon fiber sealing gasket and the output leakage-proof mechanism, effectively improves the sealing property of the speed reducer and prolongs the service life of the speed reducer.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a bidirectional leak-proof underwater speed reducer, comprising:
the input end of the speed reducer body is provided with a connecting hole into which a rotating shaft of a power supply machine extends, and the output end of the speed reducer body is provided with an output shaft; a groove for partially accommodating the motor is arranged on the outer wall surrounding the connecting hole along the radial direction of the connecting hole, and a carbon fiber sealing gasket is arranged on the groove; the speed reducer is characterized in that an air storage bag is arranged inside the speed reducer body and is connected with an air pump arranged above the water surface through an air pipe; a liquid level sensor and a pressure sensor are arranged on the outer wall of the speed reducer body;
the output leakage-proof mechanism comprises a bidirectional magnetic oil seal arranged on the contact surface of the output shaft and the speed reducer body, and a leakage-proof box arranged outside the output shaft; the leakage-proof box consists of an inner box body and an outer box body; the connecting end of the inner box body and the speed reducer body is open, and the other end of the inner box body is provided with a first through hole for the output shaft to pass through; a carbon fiber sealing ring is arranged on the inner edge of the first through hole; the outer box body is covered outside the inner box body; the outer box body is connected with the speed reducer body through a containing groove embedded in the speed reducer body, and the connecting end of the outer box body and the speed reducer body is a connecting edge matched with the containing groove; the outer box body is provided with a second through hole for the output shaft to pass through; the output shaft is connected with the second through hole in a sealing mode, and the outer box body follows the output shaft;
the controller is arranged on the water surface and is respectively connected with the motor, the air pump, the liquid level sensor and the pressure sensor; the controller controls the air pump to open/close according to data acquired by the liquid level sensor and the pressure sensor so as to balance the pressure difference inside and outside the speed reducer body by adjusting the size of the air storage bag.
Preferably, the bidirectional anti-leakage underwater speed reducer further comprises:
the flow sensor is arranged on the outer wall of the speed reducer body and connected to the controller;
a database connected with the controller; the database stores the rotating speed data of the output shaft corresponding to the water flow data; wherein the water flow data comprises: water pressure, flow rate and water depth; the controller calls water flow data closest to the obtained data in the database according to the data obtained by the liquid level sensor, the liquid level sensor and the flow sensor, obtains rotating speed data used for adjusting the rotating speed of the motor according to the called water flow data, and further adjusts the rotating speed of the output shaft according to the water flow data.
Preferably, in the bidirectional leakage-proof underwater speed reducer, the inner box body is covered outside the bidirectional magnetic oil seal; a connecting groove is formed in the connecting position of the speed reducer body and the inner box body, and the edge of the inner box body is embedded into the connecting groove; an air bag connected with the air pump is arranged in the connecting groove, and a sealing layer is arranged on the surface of the air bag.
Preferably, in the bidirectional anti-leakage underwater speed reducer, the accommodating groove is in a semicircular arrangement with a gap on the top surface of the cross section; the connecting edge is a cylindrical edge with a circular cross section; the cylindrical side is completely accommodated in the accommodating groove and is completely attached to the inner wall of the accommodating groove.
Preferably, in the bidirectional anti-leakage underwater speed reducer, the outer box body is arranged in a semicircular cover shape; the second through hole is formed in the center of the arc surface of the outer box body, which is far away from the speed reducer body; a plurality of arc-shaped bent diversion trenches are uniformly arranged on the outer wall of the outer box body at intervals; the plurality of flow guide grooves take the second through holes as starting ends and extend to the connecting edges.
Preferably, in the bidirectional leakproof underwater speed reducer, the rotation speed data of the output shaft corresponding to the water flow data is obtained by continuously recording and summarizing the relationship between the rotation speed of the output shaft of the speed reducer body and the water flow data which are used in the past.
Preferably, in the bidirectional anti-leakage underwater speed reducer, a magnet is arranged on the output shaft positioned in the inner box body; a coil is arranged around the inner wall of the inner box body, a pulse counter is arranged in the controller, the controller controls the pulse counter to count according to a preset period so as to calculate the actual rotating speed of the output shaft, and then whether the rotating speed of the output shaft corresponding to the corresponding water flow data stored in the database is matched with the actual rotating speed is judged according to the actual rotating speed and the current water flow data; if yes, controlling the rotating speed of the motor according to the rotating speed data stored in the database; and if not, adjusting the corresponding output shaft rotating speed stored in the database according to the actual rotating speed.
Preferably, in the bidirectional leakproof underwater speed reducer, the controller controls the speed reducer bodies simultaneously through the wireless communication module.
The invention at least comprises the following beneficial effects:
according to the bidirectional anti-leakage underwater speed reducer, the groove for partially accommodating the motor is formed in the input end of the speed reducer body, and the carbon fiber sealing gasket is arranged in the groove, so that the motor and the speed reducer body are tightly connected, and water flow cannot enter the speed reducer body from the input end of the speed reducer body; the output end of the speed reducer body is provided with the bidirectional magnetic oil seal connected with the speed reducer body and the output shaft, the sealing performance of the output end of the speed reducer body is preliminarily guaranteed, then the leakage-proof box is arranged outside the bidirectional magnetic oil seal, the sealing performance of the speed reducer body is further improved through the arrangement of the leakage-proof box, and then the bidirectional leakage-proof of the speed reducer is realized, the sealing performance of the underwater speed reducer is effectively improved, the probability that water flow enters the inside of the speed reducer body is reduced, namely, the damage of the speed reducer caused by water inflow is reduced, and the service life of the underwater speed reducer is prolonged.
The anti-leakage box is composed of the inner box body and the outer box body, the inner box body is fixedly connected with the speed reducer body, the outer box body rotates along with the output shaft, the double-layer box body structure not only improves the supporting effect on the output shaft, improves the durability of the output shaft, but also assists in sealing the speed reducer body, and prolongs the service life of the speed reducer.
Through the outside level sensor of speed reducer body, pressure sensor's setting to and the setting of controller, air pump and gas storage bag, realized that the speed reducer can be according to the surface of water below degree of depth at place and the water pressure that bears and fill the pressure that the automatic adjustment speed reducer body bore of gassing through the gas storage bag, the effectual internal and external pressure difference of speed reducer body that has balanced promptly, thereby reduced because of the too big speed reducer fragile that causes of internal and external pressure difference, and the drawback that operating pressure is big.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural view of a bidirectional leakproof underwater speed reducer of the invention;
FIG. 2 is a structural diagram of an outer case according to the present invention;
fig. 3 is a partially enlarged view of a portion a in fig. 1.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 3, the present invention provides a bidirectional anti-leakage underwater speed reducer, comprising:
the speed reducer comprises a speed reducer body 1, wherein the input end of the speed reducer body is provided with a connecting hole into which a rotating shaft 3 of a power supply machine 2 extends, and the output end of the speed reducer body is provided with an output shaft 4; a groove 5 for partially accommodating the motor 2 is formed in the outer wall, which surrounds the connecting hole along the radial direction of the connecting hole, and a carbon fiber sealing gasket 6 is arranged on the groove 5; the speed reducer comprises a speed reducer body 1, and is characterized in that an air storage bag 7 is arranged inside the speed reducer body 1, and the air storage bag 7 is connected with an air pump arranged above a water surface through an air pipe; a liquid level sensor and a pressure sensor are arranged on the outer wall of the speed reducer body 1;
the output leakage-proof mechanism comprises a bidirectional magnetic oil seal 8 arranged on the contact surface of the output shaft 4 and the speed reducer body 1, and a leakage-proof box arranged outside the output shaft 4; the leakage-proof box consists of an inner box body 9 and an outer box body 10; the connecting end of the inner box body 9 and the speed reducer body 1 is open, and the other end of the inner box body is provided with a first through hole for the output shaft 4 to pass through; a carbon fiber sealing ring is arranged on the inner edge of the first through hole; the outer box 10 is covered outside the inner box 9; the outer box body 10 is connected with the speed reducer body 1 through a containing groove 11 embedded in the speed reducer body 1, and a connecting end of the outer box body 10 and the speed reducer body 1 is provided with a connecting edge 12 matched with the containing groove 11; the outer box 10 is provided with a second through hole 13 for the output shaft 4 to pass through; the output shaft 4 is connected with the second through hole 13 in a sealing manner, and the outer box body 10 follows the output shaft 4;
the controller is arranged on the water surface and is respectively connected with the motor 2, the air pump, the liquid level sensor and the pressure sensor; the controller controls the opening/closing of the air pump according to data acquired by the liquid level sensor and the pressure sensor so as to balance the pressure difference between the inside and the outside of the speed reducer body 1 by adjusting the size of the air storage bag 7.
In the above scheme, the use process of the bidirectional leakage-proof underwater speed reducer specifically comprises the following steps: the rotating shaft of the motor is inserted into the connecting hole at the input end of the speed reducer body, then the motor and the speed reducer body are tightly connected through the matching of the bolt and the nut, the front end of the motor gradually enters the groove in the process that the motor and the speed reducer body gradually approach, and the front end of the motor is tightly attached to the carbon fiber sealing gasket after the bolt and the nut are screwed, so that the sealing connection between the front end of the motor and the speed reducer body is realized, and the water flow is prevented from entering the speed reducer body through the connecting hole when the speed reducer works underwater; then, an output shaft of the speed reducer body is connected with a load, and the vent pipe is connected with a water pump; the controller is started, the controller acquires detection data through the liquid level sensor and the pressure sensor, the air pump is controlled to be opened and closed according to the detection data, and then the size of the air storage bag inside the speed reducer body is adjusted, namely, the pressure difference inside and outside the speed reducer body is balanced, so that the normal work of the speed reducer is guaranteed.
The groove for partially accommodating the motor is formed in the input end of the speed reducer body, and the carbon fiber sealing gasket is arranged in the groove, so that the motor and the speed reducer body are tightly connected, and water flow cannot enter the speed reducer body from the input end of the speed reducer body; the output end of the speed reducer body is provided with the bidirectional magnetic oil seal connected with the speed reducer body and the output shaft, the sealing performance of the output end of the speed reducer body is preliminarily guaranteed, then the leakage-proof box is arranged outside the bidirectional magnetic oil seal, the sealing performance of the speed reducer body is further improved through the arrangement of the leakage-proof box, and then the bidirectional leakage-proof of the speed reducer is realized, the sealing performance of the underwater speed reducer is effectively improved, the probability that water flow enters the inside of the speed reducer body is reduced, namely, the damage of the speed reducer caused by water inflow is reduced, and the service life of the underwater speed reducer is prolonged.
Through setting up the leak protection box and constitute by interior box body and outer box body, and interior box body and speed reducer body fixed connection, outer box body rotates along with the output shaft for outer box body is sealed more firmly with output shaft department for interior box body, and interior box body is better for the connection leakproofness between outer box body and speed reducer body, makes interior box body and outer box body complementary relatively, supplementary to the sealing of speed reducer body, has prolonged the life of speed reducer, and double-deck box body structure has still improved the supporting role to the output shaft, has improved the durability of output shaft.
Through the outside level sensor of speed reducer body, pressure sensor's setting to and the setting of controller, air pump and gas storage bag, realized that the speed reducer can be according to the surface of water below degree of depth at place and the water pressure that bears and fill the pressure that the automatic adjustment speed reducer body bore of gassing through the gas storage bag, the effectual internal and external pressure difference of speed reducer body that has balanced promptly, thereby reduced because of the too big speed reducer fragile that causes of internal and external pressure difference, and the drawback that operating pressure is big.
In a preferred embodiment, the method further comprises:
the flow sensor is arranged on the outer wall of the speed reducer body 1 and connected to the controller;
a database connected with the controller; the database stores the rotating speed data of the output shaft 4 corresponding to the water flow data; wherein the water flow data comprises: water pressure, flow rate and water depth; the controller calls water flow data closest to the obtained data in the database according to the data obtained by the liquid level sensor, the liquid level sensor and the flow sensor, obtains rotating speed data used for adjusting the rotating speed of the motor 2 according to the called water flow data, and then adjusts the rotating speed of the output shaft 4 according to the water flow data.
In the above scheme, through the setting of flow sensor and database for the controller can be according to the water pressure under water, the rotational speed of the nimble adjustment motor of the change of water velocity of water and depth of water, and then adjusts the rotational speed of output shaft, namely the rotational speed of output shaft can with the environment adaptation all the time of aquatic, and then improve the working effect of speed reducer under water.
For example, in the sewage treatment process, along with the quantity of impurities in the water flow, the concentration of sewage is different, and if the motor rotating speed is fixed, when the sewage concentration is high, because the resistance of sewage becomes large, the rotating speed of the output shaft of the speed reducer can also be influenced, further the rotating speed of the output shaft becomes slow, the required stirring speed can not be reached, further the effect of stirring the sewage is reduced, and when the sewage concentration is low, because the resistance of the sewage becomes small, the rotating speed of the output shaft can be higher than the requirement of the stirring speed, the energy is wasted, therefore, through the flow sensor, the pressure sensor and the detection data of the liquid level sensor, the concentration of the sewage can be obtained through analysis, then the rotating speed is adjusted according to the water flow data by means of the controller control motor, the stirring speed can constantly meet the stirring requirement, and the waste of the energy can be avoided.
In a preferable scheme, the inner box body 9 is covered outside the bidirectional magnetic oil seal 8; a connecting groove 14 is formed at the joint of the speed reducer body 1 and the inner box body 9, and the edge of the inner box body 9 is embedded into the connecting groove 14; an air bag 17 connected with the air pump is arranged in the connecting groove 14, and a sealing layer is arranged on the surface of the air bag 17.
In the above scheme, through set up the gasbag in the spread groove to set up the sealing layer on the gasbag surface, aerify through the gasbag and can make the connection leakproofness of spread groove and interior box body better, and then improved the sealed effect of interior box body.
In a preferred scheme, the accommodating groove 11 is arranged in a semicircular shape with a gap on the top surface in the cross section; the connecting edge 12 is a cylindrical edge with a circular cross section; the cylindrical side is completely accommodated in the accommodating groove 11 and completely attached to the inner wall of the accommodating groove 11.
In the above scheme, through setting up the semi-circular structure that the storage tank has the opening for the transversal top surface of personally submitting, and the limit of connection is transversal personally submits circular shape cylindricality limit for the cylindricality limit can laminate completely with the storage tank, has both improved the compactness of being connected of outer box and speed reducer body, still does not hinder outer box along with the rotation of output shaft.
In a preferred embodiment, the outer box 10 is in a shape of a semicircular cover; the second through hole 13 is formed in the outer box 10 away from the center of the arc surface of the speed reducer body 1; a plurality of arc-shaped bent diversion trenches 18 are uniformly arranged on the outer wall of the outer box body 10 at intervals; the diversion trenches 18 are all formed by the second through hole 13 as a starting end and extend to the connecting edge 12.
In the above scheme, the semicircular cover body of the outer box body is arranged, so that the rotating resistance of the outer box body in water can be reduced, and the plurality of flow guide grooves are arranged on the outer box body, so that the rotating resistance can be further reduced, and the energy is saved.
In a preferred embodiment, the rotation speed data of the output shaft 4 corresponding to the water flow data is obtained by continuously recording and summarizing the relationship between the rotation speed of the output shaft 4 of the reducer body 1 and the water flow data used in the past.
In the above-described aspect, the accuracy of the stored data can be improved by continuously recording and summarizing the data of the output shaft of the reducer body used in the past.
In a preferable scheme, a magnet 15 is arranged on the output shaft 4 positioned in the inner box body 9; a coil 16 is arranged around the inner wall of the inner box body 9, a pulse counter is arranged in the controller, the controller controls the pulse counter to count according to a preset period so as to calculate the actual rotating speed of the output shaft 4, and then whether the rotating speed of the output shaft 4 corresponding to the corresponding water flow data stored in the database is matched with the actual rotating speed is judged according to the actual rotating speed and the current water flow data; if yes, controlling the rotating speed of the motor 2 according to the rotating speed data stored in the database; if not, the corresponding rotating speed of the output shaft 4 stored in the database is adjusted according to the actual rotating speed.
In the above scheme, through the setting of magnet, coil and pulse counter, can acquire the actual rotational speed of output shaft in real time, through the comparison of actual rotational speed and corresponding data in the database, can judge the accuracy of data in the database, and then adjust the data in the database to progressively improve the accuracy of data in the database, make the controller adjust the motor rotational speed more accurately according to rivers data, and then improve the work efficiency of speed reducer under water.
In a preferred embodiment, the controller controls the plurality of speed reducer bodies 1 simultaneously through a wireless communication module.
In the scheme, the controller is arranged to simultaneously control the plurality of speed reducer bodies through the wireless communication module, so that the underwater speed reducer is lower in use cost, and meanwhile, data of each database can be synchronously updated, or a remote database is arranged, so that the plurality of speed reducer bodies share one database, and the use cost is further reduced.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (7)
1. The utility model provides a two-way leak protection speed reducer under water which characterized in that includes:
the input end of the speed reducer body is provided with a connecting hole into which a rotating shaft of a power supply machine extends, and the output end of the speed reducer body is provided with an output shaft; a groove for partially accommodating the motor is arranged on the outer wall surrounding the connecting hole along the radial direction of the connecting hole, and a carbon fiber sealing gasket is arranged on the groove; the speed reducer is characterized in that an air storage bag is arranged inside the speed reducer body and is connected with an air pump arranged above the water surface through an air pipe; a liquid level sensor and a pressure sensor are arranged on the outer wall of the speed reducer body;
the output leakage-proof mechanism comprises a bidirectional magnetic oil seal arranged on the contact surface of the output shaft and the speed reducer body, and a leakage-proof box arranged outside the output shaft; the leakage-proof box consists of an inner box body and an outer box body; the connecting end of the inner box body and the speed reducer body is open, and the other end of the inner box body is provided with a first through hole for the output shaft to pass through; a carbon fiber sealing ring is arranged on the inner edge of the first through hole; the outer box body is covered outside the inner box body; the outer box body is connected with the speed reducer body through a containing groove embedded in the speed reducer body, and the connecting end of the outer box body and the speed reducer body is a connecting edge matched with the containing groove; the outer box body is provided with a second through hole for the output shaft to pass through; the output shaft is connected with the second through hole in a sealing mode, and the outer box body follows the output shaft;
the controller is arranged on the water surface and is respectively connected with the motor, the air pump, the liquid level sensor and the pressure sensor; the controller controls the air pump to open/close according to data acquired by the liquid level sensor and the pressure sensor so as to balance the pressure difference inside and outside the speed reducer body by adjusting the size of the air storage bag.
2. The bi-directional leak-proof underwater speed reducer of claim 1, further comprising:
the flow sensor is arranged on the outer wall of the speed reducer body and connected to the controller;
a database connected with the controller; the database stores the rotating speed data of the output shaft corresponding to the water flow data; wherein the water flow data comprises: water pressure, flow rate and water depth; the controller calls water flow data closest to the obtained data in the database according to the data obtained by the liquid level sensor, the pressure sensor and the flow sensor, obtains rotating speed data used for adjusting the rotating speed of the motor according to the called water flow data, and further adjusts the rotating speed of the output shaft according to the water flow data.
3. The bidirectional leakproof underwater speed reducer of claim 1, wherein the inner box body covers the outside of the bidirectional magnetic oil seal; a connecting groove is formed in the connecting position of the speed reducer body and the inner box body, and the edge of the inner box body is embedded into the connecting groove; an air bag connected with the air pump is arranged in the connecting groove, and a sealing layer is arranged on the surface of the air bag.
4. The bidirectional leakproof underwater speed reducer as claimed in claim 1, wherein the accommodating groove is a semicircular groove with a gap in the top surface in cross section; the connecting edge is a cylindrical edge with a circular cross section; the cylindrical side is completely accommodated in the accommodating groove and is completely attached to the inner wall of the accommodating groove.
5. The bidirectional leakproof underwater speed reducer as claimed in claim 1, wherein the outer box is in the shape of a semicircular cover; the second through hole is formed in the center of the arc surface of the outer box body, which is far away from the speed reducer body; a plurality of arc-shaped bent diversion trenches are uniformly arranged on the outer wall of the outer box body at intervals; the plurality of flow guide grooves take the second through holes as starting ends and extend to the connecting edges.
6. The bi-directional leak-proof underwater speed reducer of claim 2, wherein the rotational speed data of the output shaft corresponding to the water flow data is obtained by continuously recording and summarizing the relationship between the rotational speed of the output shaft and the water flow data of a speed reducer body used in the past.
7. The bi-directional leak-proof underwater reducer of claim 1, wherein the controller simultaneously controls a plurality of the reducer bodies through a wireless communication module.
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| CN202011374934.3A CN112377607B (en) | 2020-12-01 | 2020-12-01 | Bidirectional leakage-proof underwater speed reducer |
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| CN202011374934.3A CN112377607B (en) | 2020-12-01 | 2020-12-01 | Bidirectional leakage-proof underwater speed reducer |
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| CN112377607B true CN112377607B (en) | 2021-10-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4097200A (en) * | 1977-01-03 | 1978-06-27 | Sundstrand Corporation | Self-pressurization system for gearboxes and the like |
| CN203892524U (en) * | 2014-06-12 | 2014-10-22 | 浙江升宏机械有限公司 | Impact-resistant corner box |
| CN206054692U (en) * | 2016-10-09 | 2017-03-29 | 唐山新宝泰钢铁有限公司 | A kind of strip steel trident area pinch roll reduction gear oil tank waterproof seal |
| CN210240499U (en) * | 2019-05-17 | 2020-04-03 | 三门统运机械有限公司 | Gear box |
| CN210106542U (en) * | 2019-06-18 | 2020-02-21 | 浙江午马减速机有限公司 | High-sealing underwater operation speed reducer |
| CN211117515U (en) * | 2019-12-02 | 2020-07-28 | 杭州尤金传动设备有限公司 | High-precision gapless worm gear speed reducer for food machinery |
-
2020
- 2020-12-01 CN CN202011374934.3A patent/CN112377607B/en active Active
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| Publication number | Publication date |
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| CN112377607A (en) | 2021-02-19 |
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Denomination of invention: Bidirectional leak proof underwater reducer Effective date of registration: 20220104 Granted publication date: 20211008 Pledgee: China Minsheng Banking Corp Wenzhou branch Pledgor: Zhejiang Heng Teeth Drive Co.,Ltd. Registration number: Y2021980017327 |
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