CN210521969U - Driving device of drum-shaped filter screen - Google Patents

Abstract

The utility model discloses a drive arrangement of drum type filter screen, include: a motor assembly (100) for providing a driving force to the driving device; the transmission assembly (300) is connected with the motor assembly (100) and used for transmitting the driving force generated by the motor assembly (100) to the drum-shaped filter screen (400), the drum-shaped filter screen (400) is connected with the transmission assembly (300) and used for rotating under the driving force generated by the motor assembly (100) to filter impurities in seawater; motor element (100) are including horizontal reduction gear (110) and many motors (120), horizontal reduction gear (110) with drive assembly (300) are connected through shaft coupling (500) that possess radial and axial displacement compensation, the utility model discloses a horizontal reduction gear (110) reduce drive arrangement's focus, improve the shock resistance, shaft coupling (500) reduce the mechanical vibration of transmission in-process, improve power take off's stability.

Description

Driving device of drum-shaped filter screen

Technical Field

The utility model relates to a sea water circulating water filtration system field, concretely relates to a drive arrangement for a drum type filter screen in circulating water filtration system.

Background

The drum-shaped filter screen is a rotary cylinder body provided with a filter screen smaller than 3mm on the circumference, and the cylinder body is driven to rotate by a driving device, so that impurities larger than 3mm in seawater are filtered. The equipment needs to run for a long time without interruption, and once the equipment fails, the supply of cooling water of a nuclear power plant is influenced, so that the risk of shutdown of the nuclear power plant is caused. Therefore, the reliability and performance of the driving device directly influence the basic function realization of the drum-type filter screen.

The drum-shaped filter screen driving device adopted in the prior art adopts a vertical arrangement, so that the gravity center is higher and the shock resistance is poorer. And two bearing supports are arranged on different pre-processing plates, and are easy to generate displacement deviation after long-term operation, so that the problem of mismatching of a large gear and a small gear is caused, the transmission efficiency is influenced, and even unreasonable vibration can be generated. At present, a large gear and a small gear in the drum-shaped filter screen are made of cast steel, and the corrosion phenomenon is easy to occur when the drum-shaped filter screen runs in a marine environment for a long time.

In summary, the conventional drum-type screen driving device has technical problems that displacement deviation is easy to generate, corrosion phenomenon is easy to occur, and the like. Accordingly, there are drawbacks in the prior art that require improvement.

Disclosure of Invention

In order to solve the drum type filter screen drive arrangement who exists among the prior art, the drive arrangement motor adopts vertical arranging, and the focus is higher, technical problem such as the shock resistance is relatively poor, the utility model provides a drive arrangement of drum type filter screen, include: the motor assembly is used for providing driving force for the driving device; the transmission assembly is connected with the motor assembly and used for transmitting the driving force generated by the motor assembly to the drum-shaped filter screen, and the drum-shaped filter screen is connected with the transmission assembly and used for rotating under the driving force generated by the motor assembly to filter impurities in the seawater; the motor assembly comprises a horizontal speed reducer and a plurality of motors, and the horizontal speed reducer is connected with the transmission assembly through a coupler with radial and axial displacement compensation.

Preferably, the plurality of motors include a first low-speed motor, a second low-speed motor and a medium and high-speed two-speed motor, and are used for switching the motors according to the water level difference of the drum-shaped filter screen, the output ends of the first low-speed motor, the second low-speed motor and the medium and high-speed two-speed motor are respectively connected with the corresponding input ends of the horizontal speed reducer through respective corresponding common couplers or keys, and the input ends of the first low-speed motor, the second low-speed motor and the medium and high-speed two-speed motor are respectively and correspondingly connected to the controller.

Preferably, first low-speed motor and second low-speed motor symmetric distribution are in the both sides of horizontal reduction gear are used for improving factor of safety when the drum type filter screen normally operates, just first low-speed motor, second low-speed motor with horizontal reduction gear coaxial line.

Preferably, the input end of the coupler is connected with the output end of the horizontal speed reducer, and the output end of the coupler is connected with the input end of the transmission assembly, so that the stability of output power is improved.

Preferably, the transmission assembly comprises a driving shaft connected with the output end of the horizontal reducer through a coupling with radial and axial displacement compensation capabilities and a gear assembly connected with the driving shaft, the input end of the gear assembly is connected with one end of the driving shaft, and the output end of the gear assembly is connected with the drum-shaped filter screen and is used for smoothly transmitting the driving force generated by the motor assembly to the drum-shaped filter screen;

preferably, the gear assembly include the pinion and with pinion engagement's gear wheel, the pinion passes through the key-type connection to the drive shaft, the gear wheel passes through the bolt segmentation and connects on the drum type filter screen, be used for the drive the drum type filter screen is rotatory.

Preferably, the driving shaft is supported by a first bearing support frame and a second bearing support frame which are arranged at two ends of the driving shaft, and the first bearing support frame and the second bearing support frame are connected to the first embedded plate through bolts and used for improving the stability of the driving shaft.

Preferably, the horizontal speed reducer, the first low-speed motor, the second low-speed motor and the middle and high-speed double-speed motor are respectively provided with a first mounting plate, a second mounting plate and a third mounting plate at the bottom for supporting the horizontal speed reducer, the first low-speed motor, the second low-speed motor and the middle and high-speed double-speed motor, and the first mounting plate, the second mounting plate and the third mounting plate are all connected to the second embedded plate through bolts for improving the stability of the motor assembly.

Preferably, the large gear and the small gear are both nylon gears, so that the corrosion resistance of the large gear and the small gear is improved;

preferably, the coupling is a serpentine spring coupling.

The utility model provides a beneficial effect that technical scheme brought is: the utility model adopts 2 low-speed motors, 1 motor runs normally, 1 motor is standby and is symmetrically distributed on two sides of the reducer, thereby improving the safety factor of the drum-shaped filter screen during normal running; the water level difference along with the drum-shaped filter screen is continuously improved by arranging 1 set of medium-high speed electrodes, when the water level difference reaches a specified value, the system is automatically switched to be driven by a medium-high speed motor, and the low-speed motor stops driving; a horizontal speed reducer is adopted, so that the driving motor is arranged on a horizontal plane, the gravity center of the driving device is reduced, and the shock resistance is improved; the horizontal speed reducer and the driving shaft are connected by adopting the coupling with radial and axial displacement compensation, so that the transmission of mechanical vibration is reduced, and the stability of power output is improved; by adopting the nylon gear, the wear and vibration between gear surfaces are reduced, and the wear resistance, fatigue resistance, corrosion resistance and impact resistance of the gear are improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a drum-type filter screen driving device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a drum-type filter screen driving device according to an embodiment of the present invention.

Detailed Description

In order to solve the drum type filter screen drive arrangement that exists among the prior art, the drive arrangement motor adopts vertical arranging, and the focus is higher, and the shock resistance is relatively poor, gear wheel and pinion close the problem of not matching, influence the technical problem of transmission efficiency and gear fragile etc. the utility model aims at providing a drive arrangement of drum type filter screen, its core thought is: in order to enable the drum-shaped filter screen to meet different loads, the utility model adopts low-medium speed configuration, is provided with two low-speed motors, one for one and one medium-high speed motor, and realizes medium-high speed switching; in order to reduce the influence caused by shock resistance of the driving device, the speed reducer adopts a horizontal type, and the two bearing supports are arranged on the same embedded plate; in order to reduce the problems of discontinuous jumping and corrosion resistance caused by the instant impact load of the drum-shaped filter screen on the driving device, the small gear and the large gear both adopt nylon gears.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Examples

The embodiment of the utility model provides a drum type filter screen drive arrangement's schematic structure diagram, as shown in FIG. 1: the drive device of the drum-shaped filter screen comprises: a motor assembly 100 for providing a driving force to the driving device; the transmission assembly 300 is connected with the motor assembly 100 and used for transmitting the driving force generated by the motor assembly 100 to the drum-shaped filter screen 400, and the drum-shaped filter screen 400 is connected with the transmission assembly 300 and used for rotating under the driving force to filter impurities in the seawater; the motor assembly 100 includes a horizontal reducer 110 and a plurality of motors 120 connected to the horizontal reducer 110, and is configured to provide power for a driving device, the centers of gravity of the plurality of motors 120 and the center of gravity of the horizontal reducer 110 are on the same horizontal line, the horizontal reducer 110 is connected to the transmission assembly 300 through a coupling 500, an input end of the coupling 500 is connected to an output end of the horizontal reducer 110, an output end of the coupling 500 is connected to an input end of the transmission assembly 300, and the coupling 500 has radial and axial displacement compensation, so that transmission of mechanical vibration can be reduced, and stability of output power can be improved.

The specific working process is as follows: the motors 120 are switched according to the water level difference to generate different driving forces, the driving forces are transmitted to the horizontal speed reducer 110, the horizontal speed reducer 110 adjusts the speed of the driving forces, the adjusted driving forces are transmitted to the transmission assembly 300 through the coupler 500, the transmission assembly 300 changes the direction of the driving forces and transmits the changed driving forces to the drum-shaped filter screen 400, and the drum-shaped filter screen 400 is driven to rotate to filter seawater. The horizontal reducer 110 can reduce the center of the driving device, improve the anti-seismic performance of the driving device, and the coupling 500 can improve the stability of the transmission power. It should be noted that: the plurality of motors 120 and the horizontal reducer 110 may be connected by a key or a common coupling. When the motors 120 are connected through keys, key slots are respectively formed in output shafts of the motors 120, standard keys are arranged at the key slots, and when the motors 120 rotate, the horizontal speed reducer 110 is driven to rotate together; when the connection is performed through the common coupling, only the output ends of the plurality of motors 120 are connected with the input ends of the common coupling, and the input end of the horizontal reducer 110 is connected with the output end of the common coupling.

Further, as can be seen from fig. 1: the transmission assembly 300 comprises a driving shaft 200 connected with the output end of the horizontal reducer 110 and a gear assembly 320 connected with the driving shaft 200, wherein the input end of the gear assembly 320 is connected with one end of the driving shaft 200, and the output end of the gear assembly 320 is connected with the drum filter 400; wherein, the output end of the horizontal reducer 110 is connected with the driving shaft 200 through a coupling 500 with radial and axial displacement compensation capability; preferably, the coupling 500 is a serpentine spring coupling. The serpentine spring coupling has the radial and axial displacement compensation capacity, and meanwhile, the service life is long, the transmission efficiency is high, and the transmission is safe and stable.

Further, the gear assembly 320 includes a pinion 301 and a bull gear 302 engaged with the pinion 301, wherein the pinion 301 is connected with the driving shaft 200 through a key, specifically, a key groove is formed at a connection position of the driving shaft 200 and the pinion 301, when the driving shaft 200 is connected with the pinion 301, a standard key is placed at the key groove, so that the pinion 301 rotates along with the rotation of the driving shaft 200, the bull gear 302 is engaged with the pinion 301, a driving force is obtained through the gear engagement, and the bull gear 302 is connected with the drum-type filter screen 400 through a bolt, so that the drum-type filter screen 400 rotates along with the rotation of the bull gear 302, and a function of filtering impurities in seawater is realized. It should be noted that: because the drum filter screen 400 is large, in order to improve the stability of the drum filter screen 400, a ring beam is arranged inside the drum filter screen 400, and the large gear 302 and the ring beam are connected in a segmented manner through a plurality of bolts, so that the connection firmness is improved, and the stability of the transmission of the driving force is ensured. As can be seen from fig. 1, the drum-type filter screen 400 further includes a drum-type filter screen support for supporting the drum-type filter screen 400, and the drum-type filter screen support is a triangular structure formed by connecting a plurality of cross beams through bolts, and is stable in fixation, so as to ensure the stability of the drum-type filter screen 400 during rotation.

The driving shaft 200 is supported by a first bearing support 610 and a second bearing support 620 respectively disposed at both ends of the driving shaft 200, specifically, the first bearing support 610 is installed at one end of the driving shaft 200 close to the horizontal reducer 110, one end of the first bearing support 610 is provided with a first bearing sleeved on the driving shaft 200, the first bearing is provided with a rotor contacting with the driving shaft 200 and a stator contacting with the rotor, the stator is connected with the other end of the first bearing support 610 through a bolt, the second bearing support 620 is installed at one end of the driving shaft 200 close to the pinion 301, one end of the second bearing support 620 is provided with a second bearing sleeved on the driving shaft 200, the second bearing is provided with a rotor contacting with the driving shaft 200 and a stator contacting with the rotor, the stator is connected with the second bearing support 620 through a bolt, and one ends of the first bearing support 610 and the second bearing support 620 connected with the stator extend downward and are connected to the first embedment plate 700, the driving shaft 200 is supported, one end of the bolt extends to the bottom of the first embedded plate 700, the supporting stability is guaranteed, the deviation caused by different vibration amplitudes of two supporting points due to an earthquake is avoided, and the stability of power output during the earthquake is improved.

In conjunction with fig. 2 on the basis of fig. 1, it can be seen that: the plurality of motors 120 include a first low-speed motor 121, a second low-speed motor 122 and a medium-high speed and double-speed motor 123, the first low-speed motor 121 is a low-speed motor used under normal conditions, and output ends of the first low-speed motor 121 are connected with corresponding input ends of the horizontal reducer 110 through keys or common couplers respectively; the second low-speed motor 122 is a standby low-speed motor when the first low-speed motor 121 cannot be used normally, and is used for improving the safety of the driving device, and the output end of the second low-speed motor 122 is connected with the corresponding input end of the horizontal speed reducer 110 through a key or a common coupling; the output end of the medium-high speed double-speed motor 123 is connected with the corresponding input end of the horizontal speed reducer 110 through a key or a common coupler; the input ends of the first low-speed motor 121, the second low-speed motor 122 and the medium-high speed double-speed motor 123 are respectively and correspondingly connected to the controller, and the low-medium-high speed switching of the drum-shaped filter screen 400 can be realized through the first low-speed motor 121, the second low-speed motor 122 and the medium-high speed double-speed motor 123. Specifically, the controller is provided with a plurality of input interfaces and output interfaces, wherein a first output interface, a second output interface and a third output interface are respectively connected to input ends of a first low-speed motor 121, a second low-speed motor 122 and a medium-high-speed double-speed motor 123, wherein a first sensor, a second sensor and a third sensor are respectively arranged at output ends of the first low-speed motor 121 and the second low-speed motor 122 and on an outer wall of the drum filter 400, the first sensor, the second sensor and the third sensor are used for detecting working states of the first low-speed motor 121 and the second low-speed motor 122 and a water head difference at the drum filter 400 in real time, and output ends of the first sensor, the second sensor and the third sensor are respectively correspondingly connected with the first input interface, the second input interface and the third input interface on the controller, and are used for the controller to receive the first sensor, the second input interface and the third input interface on the controller, The state signals of the second sensor and the third sensor control the motor to switch according to the received state signals, and specifically: when the first sensor detects that the first low-speed motor 121 fails or malfunctions, the first sensor sends a state signal that the first low-speed motor 121 fails to work to the first input interface of the controller, the controller receives the state signal that the first low-speed motor 121 fails, the controller sends an instruction to stop working to the first low-speed motor 121 through the first output interface, and sends a working instruction to the second low-speed motor 122 through the second output interface, so as to realize the automatic switching between the first low-speed motor 121 and the second low-speed motor 122, wherein the third sensor is arranged on the outer wall of the drum filter 400, the third sensor sends a water head difference signal to the third input interface of the controller, and the controller receives the water head difference signal and increases along with the water head difference, when the controller receives a preset water level difference signal, the controller respectively sends out an instruction of stopping running to the first low-speed motor 121 and the second low-speed motor 122 through the first output interface and the second output interface, and sends out an operation instruction to the medium-high-speed double-speed motor 123 through the third output interface, so that the switching of the motors is realized. It should be noted that: the utility model discloses a control motor switches and is the same with vertical drive arrangement's control motor switch, not the utility model discloses a protection is key.

The first low-speed motor 121 and the standby second low-speed motor 122 which are normally used are symmetrically distributed on two sides of the horizontal reducer 110, so that the arrangement space of the motors is saved; the first low-speed motor 121 is located on one side of the horizontal reducer 110 far away from the driving shaft 200, the second low-speed motor 122 is located on one side of the horizontal reducer 110 near the driving shaft 200, the middle-high-speed double-speed motor 123 and the first low-speed motor 121 are installed on the same side and are located below the first low-speed motor 121, meanwhile, the horizontal reducer 110, the first low-speed motor 121, the second low-speed motor 122 and the middle-high-speed double-speed motor 123 are respectively provided with a first mounting plate, a second mounting plate and a third mounting plate at the bottom for supporting the horizontal reducer 110, the first low-speed motor 121, the second low-speed motor 122 and the middle-high-speed double-speed motor 123, wherein the first mounting plate, the second mounting plate and the third mounting plate are all connected to the second pre-buried plate 800 through bolts, so that the horizontal reducer 110, the low-speed motor 121, the standby low-speed motor 122, the gravity center of the driving device is reduced, and the shock resistance is improved. It should be noted that: the first embedded plate 700 and the second embedded plate 800 may be installed according to actual installation requirements, and may or may not be installed on the same horizontal plane.

Wherein, in the utility model discloses an in one of them embodiment, gear wheel 302 and pinion 301 are the nylon gear, this is because during drum type filter screen 400 normal motion, easy and sea water contact when pinion 301 and gear wheel 302 mesh, the erosion of sea water causes the corrosion of gear easily, and the very thin little grains of sand that smugglies secretly easily during the gear engagement, aggravate wearing and tearing and vibration between the gear face, the nylon gear that the wearability, fatigue resistance, corrosion resistance, shock resistance are better has all been adopted for reducing this condition 302 and pinion 301.

The above embodiment numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.

To sum up, the embodiment of the utility model adopts the low-medium-high speed configuration, is equipped with two low-speed motors, one is used under normal conditions, and the other is standby, is equipped with a medium-high speed motor, and realizes the low-medium-high speed switching of the drum-shaped filter screen; the horizontal type speed reducer is adopted, so that the gravity center of the driving device is reduced, and the shock resistance is improved; a coupling with radial and axial displacement compensation is adopted between the speed reducer and the driving shaft, so that the output stability of power is improved; the support of the driving shaft is fixed on the same embedded plate, so that the deviation caused by different vibration amplitudes of two supporting points due to an earthquake is avoided, and the shock resistance is improved; the large gear and the small gear are made of nylon materials, so that the replacement frequency caused by corrosion or tooth surface abrasion is reduced.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A drive arrangement of drum type filter screen which characterized in that: the method comprises the following steps: a motor assembly (100) for providing a driving force to the driving device; the transmission assembly (300) is connected with the motor assembly (100) and used for transmitting the driving force generated by the motor assembly (100) to the drum-shaped filter screen (400), and the drum-shaped filter screen (400) is connected with the transmission assembly (300) and used for rotating under the driving force generated by the motor assembly (100) to filter impurities in the seawater; the motor assembly (100) comprises a horizontal speed reducer (110) and a plurality of motors (120), wherein the horizontal speed reducer (110) is connected with the transmission assembly (300) through a coupling (500) with radial and axial displacement compensation.

2. The driving device according to claim 1, wherein the plurality of motors (120) include a first low-speed motor (121), a second low-speed motor (122), and a middle and high-speed two-speed motor (123) for switching the motors according to the water level difference of the drum-shaped filter screen (400), output ends of the first low-speed motor (121), the second low-speed motor (122), and the middle and high-speed two-speed motor (123) are respectively connected to corresponding input ends of the horizontal reducer (110) through respective corresponding common couplings or keys, and input ends of the first low-speed motor (121), the second low-speed motor (122), and the middle and high-speed two-speed motor (123) are respectively and correspondingly connected to the controller.

3. The driving device according to claim 2, wherein the first low-speed motor (121) and the second low-speed motor (122) are symmetrically distributed on two sides of the horizontal reducer (110), and the first low-speed motor (121), the second low-speed motor (122) and the horizontal reducer (110) are coaxial for increasing the safety factor of the drum-type filter screen (400) in normal operation.

4. The driving device according to claim 3, wherein the input end of the coupling (500) is connected with the output end of the horizontal reducer (110), and the output end of the coupling (500) is connected with the input end of the transmission assembly (300), so that the stability of output power is improved.

5. The drive arrangement according to claim 4, characterized in that the transmission assembly (300) comprises:

one end of the driving shaft (200) is connected with the output end of the horizontal speed reducer (110) through a coupling (500); the other end of the driving shaft (200) is connected with the gear assembly (320) through a key for transmitting driving force;

the input end of the gear assembly (320) is connected with one end of the driving shaft (200), and the output end of the gear assembly (320) is connected with the drum-shaped filter screen (400) for smoothly transmitting the driving force generated by the motor assembly (100) to the drum-shaped filter screen (400).

6. The drive device according to claim 5, characterized in that the gear assembly (320) comprises a pinion (301) and a gearwheel (302) meshing with the pinion (301), the pinion (301) being keyed to the drive shaft (200), the gearwheel (302) being connected in segments by bolts to the drum screen (400) for driving the drum screen (400) in rotation.

7. The driving apparatus according to claim 6, wherein the driving shaft (200) is supported by first and second bearing support brackets (610, 620) respectively provided at both ends of the driving shaft (200), the first and second bearing support brackets (610, 620) being connected to a first embedment plate (700) by bolts for improving stability of the driving shaft (200).

8. The driving device according to claim 7, wherein a first mounting plate, a second mounting plate and a third mounting plate are respectively arranged at the bottom of the horizontal speed reducer (110), the first low-speed motor (121), the second low-speed motor (122) and the middle and high-speed two-speed motor (123) and are used for supporting the horizontal speed reducer (110), the first low-speed motor (121), the second low-speed motor (122) and the middle and high-speed two-speed motor (123), and the first mounting plate, the second mounting plate and the third mounting plate are all connected to the second pre-embedded plate (800) through bolts and are used for improving the stability of the motor assembly (100).

9. The drive of claim 8, wherein the bull gear (302) and the pinion gear (301) are both nylon gears, improving the corrosion resistance of the bull gear (302) and the pinion gear (301).

10. The drive arrangement according to claim 1, characterized in that the coupling (500) is a serpentine spring coupling.

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