CN217625822U

CN217625822U - Fixed mass fraction feed mechanism of generator fuel

Info

Publication number: CN217625822U
Application number: CN202221644139.6U
Authority: CN
Inventors: 李虎; 张勇; 张长斌; 刘锐祥; 赵永斌; 李寿龙; 石安泰
Original assignee: China Coal Energy Xinjiang Coal Electrification Co ltd
Current assignee: China Coal Energy Xinjiang Coal Electrification Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-10-21
Anticipated expiration: 2032-06-29

Abstract

The utility model relates to a fixed mass fraction feed mechanism of generator fuel, including two material loading chutes and two defeated material augers, two be provided with driving motor between the defeated material augers, and driving motor's output shaft fixedly connected with initiative toothed disc, the bilateral central symmetry of initiative toothed disc is provided with first gear mechanism and second gear mechanism, all correspond in first gear mechanism and the second gear mechanism and be provided with a plurality of groups of gears, the angular velocity of two corresponding gears in two sets of becomes fixed ratio, and this scheme carries out the proportion through the diameter between the corresponding gear train in to first gear mechanism and the second gear mechanism and fixes, makes the ratio fixed between the corresponding angular velocity, and the speed ratio of two defeated material augers is the fixed value corresponding with gear mechanism, realizes in unit interval that the delivery capacity to fuel is the ratio that corresponds to this reaches convenient in fuel transportation process, simplifies the flow, improves the convenience of carrying.

Description

Fixed mass fraction feed mechanism of generator fuel

Technical Field

The application relates to the technical field of thermal power plants, in particular to a fixed mass fraction feeding mechanism for fuel of a generator.

Background

In order to reduce the slag amount after the combustion of the boiler, the high-sodium coal and the low-sodium coal or the high-sodium coal and the kaolin are generally mixed according to a fixed mass fraction in the thermal power plant, and the mixed fuel is conveyed to a combustion chamber for combustion and power generation.

Present coal fuel carries and goes on mostly through the hold-in range, set up weighing mechanism on the hold-in range, carry out real-time control to the quality of its coal of carrying, because its weighing mechanism can't distinguish the material on the hold-in range, consequently can't accomplish the ratio operation to two kinds of different fuels, the ratio of fuel needs to be accomplished before carrying, transport the fuel that the ratio was accomplished to the hold-in range again on, convey to combustion mechanism after weighing via the hold-in range again, the process complexity that leads to the material loading is high, and comparatively inconvenient. Therefore, in order to solve the problem that the existing synchronous belt feeding cannot carry out fuel proportioning, the technical personnel in the field provide a generator fuel fixed mass fraction feeding mechanism.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems presented in the background art, the application provides a generator fuel fixed mass fraction feeding mechanism.

The application provides a pair of fixed mass fraction feed mechanism of generator fuel, including two last silos and two defeated material augers, it is provided with the defeated material area that is used for the material loading, two to go up to be provided with between the defeated material auger along defeated material auger axial displacement's driving motor, and driving motor's output shaft fixedly connected with initiative fluted disc, the bilateral central symmetry of initiative fluted disc is provided with first gear mechanism and second gear mechanism, all correspond in first gear mechanism and the second gear mechanism and be provided with a plurality of groups of gears, the angular velocity of two corresponding gears in two sets of becomes fixed ratio, and the initiative fluted disc carries out position change in first gear mechanism and second gear mechanism, realizes the switching to different angular velocity ratios, first gear mechanism and second gear mechanism all through hold-in range mechanism and the defeated material auger transmission that corresponds separately and connect, the inside of defeated material auger is provided with the screw rod that the cooperation was used, and the bottom of screw rod is outstanding defeated material auger urceolus and is extended to the inboard setting of silo.

Preferably, a first hydraulic cylinder is arranged on the outer side of the driving motor, and the axial direction of the first hydraulic cylinder is parallel to the axial line of the output shaft of the driving motor.

Preferably, the outer sides of the first gear mechanism and the second gear mechanism are both provided with a fixed frame, the outer sides of the two fixed frames are both provided with a second hydraulic cylinder, the output end of the second hydraulic cylinder is fixedly connected with the second hydraulic cylinder, and the second hydraulic cylinder drives the gear mechanism to move along the direction perpendicular to the axis of the driving motor.

Preferably, hold-in range mechanism includes hold-in range, two drive gear and a glide gear, the hold-in range cooperation is around locating two drive gear and glide gear's the outside, glide gear's upper and lower both sides all are provided with first spring, and first spring is to the effect of glide gear, makes the hold-in range be in the tensioning state all the time.

Preferably, the both sides of going up the silo all rotate and are connected with the fly leaf, and rotate through the hinge and connect between the bottom of fly leaf and the last silo, go up the equal fixedly connected with a set of second spring in four turning positions departments in top of silo, every group the second spring all is provided with two, and two second springs set up respectively in the both sides of fly leaf, bolt fixedly connected with vibrating motor on the outer wall of fly leaf.

To sum up, this application includes following beneficial technological effect:

the diameters of corresponding gear sets in the first gear mechanism and the second gear mechanism are fixed in proportion, so that the ratio between corresponding angular velocities is fixed, and the rotating speed ratio of the two material conveying augers is a fixed value corresponding to the gear mechanism under the transmission of the same synchronous belt mechanism, so that the fuel conveying amount is a corresponding ratio in unit time, the convenient proportioning in the fuel conveying process is achieved, the process is simplified, and the conveying convenience is improved; through the outstanding its pipeline setting of screw rod with defeated material auger, guarantee with the good contact effect of material in the silo, vibrating motor drives the fly leaf, cooperates the second spring, realizes going up the accumulated fuel of silo inner wall and collapses to the centre to reduce the possibility that the vacancy appears in the screw rod top, guarantee the precision of fuel ratio.

Drawings

FIG. 1 is a block diagram of a generator fuel fixed mass fraction loading mechanism in an embodiment of the present application;

FIG. 2 is a timing belt structure diagram of a generator fuel fixed mass fraction feed mechanism in an embodiment of the present application;

FIG. 3 is a structural diagram of a loading structure of a generator fuel fixed mass fraction loading mechanism according to an embodiment of the present application;

FIG. 4 is an enlarged view of a generator fuel fixed mass fraction charging mechanism at A in an embodiment of the present application.

Description of reference numerals: 1. a drive motor; 2. a first hydraulic cylinder; 3. a driving gear plate; 4. a first gear mechanism; 5. a second gear mechanism; 6. a second hydraulic cylinder; 7. a synchronous belt mechanism; 701. a synchronous belt; 702. a transmission gear; 703. a slipping gear; 704. a first spring; 8. a material conveying auger; 801. a screw; 9. a feeding groove; 10. a vibration motor; 11. a material conveying belt; 12. a movable plate; 13. a second spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a fixed mass fraction feeding mechanism of generator fuel. Referring to fig. 1-4, a generator fuel fixed mass fraction feeding mechanism comprises two feeding troughs 9 and two material conveying augers 8, wherein a material conveying belt 11 for feeding is arranged on each feeding trough 9, the output position of the preferable material conveying belt 11 is positioned above the end part of a screw 801, so that fuel can well cover the upper part of the screw 801, thereby ensuring the material conveying effect of the screw 801, a driving motor 1 which moves along the axial direction of the material conveying augers 8 is arranged between the two material conveying augers 8, an output shaft of the driving motor 1 is fixedly connected with a driving gear disc 3, a first gear mechanism 4 and a second gear mechanism 5 are symmetrically arranged at the two sides of the driving gear disc 3, a plurality of groups of gears are correspondingly arranged in the first gear mechanism 4 and the second gear mechanism 5, the angular velocities of two corresponding gears in the two groups form a fixed ratio, the driving gear disc 3 is subjected to position change in the first gear mechanism 4 and the second gear mechanism 5, realize the switching to different angular velocity ratios, preferably, three gears are arranged in the first gear mechanism 4 and the second gear mechanism 5, the three gears in two groups are respectively arranged correspondingly, the angular velocity ratios of the three groups of gears are adjusted through the diameter of the gears, the gears are flexibly selected according to actual needs, the first gear mechanism 4 and the second gear mechanism 5 are in transmission connection with the corresponding material conveying auger 8 through a synchronous belt mechanism 7, a screw 801 matched for use is arranged inside the material conveying auger 8, the bottom end of the screw 801 protrudes out of the outer barrel of the material conveying auger 8 and extends to the inner side of the upper trough 9, a first hydraulic cylinder 2 is arranged outside the driving motor 1, the axial direction of the first hydraulic cylinder 2 is parallel to the axis of the output shaft of the driving motor 1, and the preferred first hydraulic cylinder 2 is arranged below the driving motor 1, the stroke of the first hydraulic cylinder 2 is larger than the distance between each group of gears in the gear mechanism, the outer sides of the first gear mechanism 4 and the second gear mechanism 5 are both provided with a fixed frame, the outer sides of the two fixed frames are both provided with a second hydraulic cylinder 6 with an output end fixedly connected with the second hydraulic cylinder 6, the second hydraulic cylinder 6 drives the gear mechanism to move along the direction vertical to the axis of the driving motor 1, the first gear mechanism 4 and the second gear mechanism 5 are preferably arranged on the horizontal two sides of the driving motor 1 in a central symmetry manner, the transmission of the second hydraulic cylinder 6 is matched with the first hydraulic cylinder 2, when the first hydraulic cylinder 2 moves, the second hydraulic cylinder 6 moves to one side far away from the driving motor 1, when the position of the first hydraulic cylinder 2 is fixed, the second hydraulic cylinder 6 drives the two gear mechanisms to be engaged and connected with the outer side of the driving gear disc 3, the synchronous belt mechanism 7 comprises a synchronous belt 701, two transmission gears 702 and a sliding gear 703, the synchronous belt 701 is matched and wound on the outer sides of the two transmission gears 702 and the sliding gear 703, the upper side and the lower side of the sliding gear 703 are respectively provided with a first spring 704, the first spring 704 acts on the sliding gear 703 to enable the synchronous belt 701 to be always in a tensioning state, preferably, when the transmission gear mechanism of the second hydraulic cylinder 6 is displaced in the horizontal direction, the tightness degree of the synchronous belt 701 can be changed, the position of the sliding gear 703 is adjusted through the first spring 704, so that the synchronous belt 701 is always in the tensioning state, the operation stability of the lifting device is ensured, two sides of the feeding groove 9 are respectively and rotatably connected with a movable plate 12, the bottom of the movable plate 12 is rotatably connected with the feeding groove 9 through hinges, four corner positions at the top end of the feeding groove 9 are respectively and fixedly connected with a group of second springs 13, and two second springs 13 are arranged in each group, and two second springs 13 are respectively arranged at two sides of the movable plate 12, a vibrating motor 10 is fixedly connected to the outer wall of the movable plate 12 through bolts, when the vibrating motor 10 works, the movable plate 12 is driven to reciprocate between the two second springs 13, so that fuel accumulated on the inner wall of the feeding trough 9 collapses to the middle position, a CCD camera system is preferably arranged on the feeding trough 9, the CCD camera system is used for continuously monitoring the upper part of the screw 801, thereby ensuring the sufficient conveying capacity of the conveying belt 11, ensuring that the screw 801 does not leak fuel all the time, and because the fuel is wrapped around the screw 801, even at the outer side of the outer barrel of the conveying auger 8, the screw 801 still can realize good transmission effect on the fuel.

The implementation principle of the fixed mass fraction feeding mechanism of the fuel of the generator in the embodiment of the application is as follows: two types of external fuels are all conveyed to the inner side of an upper trough 9 through a conveying belt 11, when a driving motor 1 rotates, two gear mechanisms are respectively driven to rotate through a driving gear disc 3, the two gear mechanisms drive a conveying auger 8 under the action of a synchronous belt mechanism 7, a screw 801 protruding to the outer side of the conveying auger 8 drives coal in the upper trough 9 to the end part of the conveying auger 8, the coal enters the inner side of the conveying auger 8 and is conveyed to the outside under the combined action of the inner wall of the conveying auger 8 and the screw 801, in the working process of the screw 801, a vibration motor 10 on a movable plate 12 synchronously operates, the movable plate 12 is driven by the vibration motor 10 to rotate around the rotating shaft position of the movable plate 12, the fuel attached to the inner wall of the movable plate 12 collapses under the action of a second spring 13, so that the fuel flows to the middle position, good supplement to the fuel above the screw 801 is ensured, the vacancy above of the screw 801 is avoided, a small amount of fuel is generated during fuel conveying, and a large error is generated in proportioning; when the ratio of ratio needs to be changed, two second hydraulic cylinders 6 all contract, first hydraulic cylinder 2 changes that stretches out and draws back afterwards, transmission driving gear dish 3 reaches the ratio position department that corresponds in two gear train mechanisms, second hydraulic cylinder 6 extends once more this moment, make meshing between its inside gear and the driving gear dish 3, angular velocity through corresponding component gear in to first gear mechanism 4 and the second gear mechanism 5 sets up, and the linear velocity size of two sets of hold-in range mechanisms 7 is the same, consequently defeated material auger 8's unit interval delivery volume and first gear mechanism 4, the angular velocity ratio of second gear mechanism 5 is directly proportional, thereby can realize the different ratio effects of defeated material auger 8 delivery volume, reach when fuel transportation, carry out the ratio, hoisting device is to fuel transportation's efficiency.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a fixed mass fraction feed mechanism of generator fuel, includes two material loading troughs (9) and two defeated material auger (8), be provided with on material loading trough (9) and be used for defeated material area (11) of material loading, its characterized in that: two be provided with between defeated material auger (8) along defeated material auger (8) axial displacement's driving motor (1), and the output shaft fixedly connected with initiative toothed disc (3) of driving motor (1), the bilateral central symmetry of initiative toothed disc (3) is provided with first gear mechanism (4) and second gear mechanism (5), all correspond in first gear mechanism (4) and second gear mechanism (5) and be provided with a plurality of groups of gears, the angular velocity of two gears that correspond in two sets of becomes fixed ratio, and initiative toothed disc (3) carry out position change in first gear mechanism (4) and second gear mechanism (5), realize the switching to different angular velocity ratios, first gear mechanism (4) and second gear mechanism (5) all connect through the transmission between hold-in range mechanism (7) and the auger (8) that correspond separately, the inside of auger (8) is provided with screw rod (801) that the cooperation was used, and the bottom of screw rod (801) is outstanding defeated material auger (8) the inboard of extending supreme material silo (9) sets up.

2. The fixed mass fraction generator fuel loading mechanism of claim 1, wherein: the outer side of the driving motor (1) is provided with a first hydraulic cylinder (2), and the axial direction of the first hydraulic cylinder (2) is parallel to the axis of the output shaft of the driving motor (1).

3. The fixed mass fraction generator fuel charging mechanism of claim 1, wherein: the outer sides of the first gear mechanism (4) and the second gear mechanism (5) are both provided with fixed frames, the outer sides of the two fixed frames are both provided with second hydraulic cylinders (6) with output ends fixedly connected with the second hydraulic cylinders, and the second hydraulic cylinders (6) drive the gear mechanism to move along the direction perpendicular to the axis of the driving motor (1).

4. The fixed mass fraction generator fuel loading mechanism of claim 1, wherein: the synchronous belt mechanism (7) comprises a synchronous belt (701), two transmission gears (702) and a sliding gear (703), the synchronous belt (701) is matched with the outer sides of the two transmission gears (702) and the sliding gear (703), first springs (704) are arranged on the upper side and the lower side of the sliding gear (703), and the first springs (704) act on the sliding gear (703) to enable the synchronous belt (701) to be always in a tensioning state.

5. The fixed mass fraction generator fuel loading mechanism of claim 1, wherein: go up the both sides of silo (9) and all rotate and be connected with fly leaf (12), and rotate through the hinge and connect between the bottom of fly leaf (12) and last silo (9), go up the equal fixedly connected with a set of second spring (13) of four turning positions departments in top of silo (9), every group second spring (13) all are provided with two, and two second springs (13) set up respectively in the both sides of fly leaf (12), bolt fixedly connected with vibrating motor (10) on the outer wall of fly leaf (12).