CN102827975B - Bell-less distributor on top of blast furnace - Google Patents
Bell-less distributor on top of blast furnace Download PDFInfo
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- CN102827975B CN102827975B CN201210329455.9A CN201210329455A CN102827975B CN 102827975 B CN102827975 B CN 102827975B CN 201210329455 A CN201210329455 A CN 201210329455A CN 102827975 B CN102827975 B CN 102827975B
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Abstract
The invention discloses a bell-less distributor on the top of a blast furnace. The bell-less distributor comprises a distributor box body, a chute, a beta-angle rotation driving mechanism and an alpha-angle tilting mechanism, wherein the beta-angle rotation driving mechanism and the alpha-angle tilting mechanism are used for controlling the chute; the alpha-angle tilting mechanism comprises a towing loop, a pivoting support, an upper transmission system and a lower transmission mechanism, wherein the lower transmission mechanism is used for converting the vertical linear motion of the towing loop into the tilting motion of the chute; the lower transmission mechanism comprises a set of planet wheel linear mechanism; and two output shafts in the planet wheel linear mechanism are connected with a rotating shaft by two sets of crank-link mechanisms arranged at both sides of the planet wheel linear mechanism, wherein the rotating shaft is used for driving the chute to rotate. Each crank-link mechanism comprises a crank connected with the two output shafts, a link hinged with the crank and a chute crank hinged with the link. The alpha-angle lower transmission mechanism of the distributor adopts a planet linear moving mechanism and a crank-link mechanism; and in the variation process of an alpha angle of the chute, a driving rod performs the linear motion all along under the drive of the towing loop, the towing loop excludes lateral force, the rails and rolling wheels for controlling the towing loop are not required, and therefore, the whole structure is simplified, the service precision is improved and the service life is prolonged.
Description
Technical Field
The invention belongs to a blast furnace distributing device in metallurgical equipment, and relates to a bell-less distributor at the top of a blast furnace, which can eliminate lateral component force caused by down-transmission in the process of up-and-down movement of a drag ring.
Background
The prior bell-less furnace top of a blast furnace comprises a distributing device, a corrugated pipe, a lower sealing valve, a material flow regulating valve, a charging bucket, an upper sealing valve, a material blocking valve and a hopper, wherein the distributing device is a core component of the whole set of equipment, the equipment is arranged on a furnace shell, the working position of a material distribution chute of the equipment is in the blast furnace, the working temperature of the working position is about 200 ℃, the instantaneous temperature can reach 700 ℃ when the furnace charge is abnormal, the working environment is severe, the content of crude gas and dust is high, when the equipment distributes the material, the furnace charge of each batch of the blast furnace passes through the height difference of a plurality of meters from the material flow regulating valve to the material distribution chute, simultaneously, the tilting angle and the rotating speed of the chute are accurately controlled, the requirements on.
The structure of the present distributor can be found in the prior patent with the patent publication No. CN102363823A entitled fork-arm bell-less blast furnace distributor and the patent publication No. CN202099298U entitled blast furnace bell-less top distributor, and the blast furnace equipment manufactured by the company lusenberg bulrowtt (p.w). The chute is controlled by an angle alpha and an angle beta relative to the axis of the distributing device, wherein the angle alpha is an included angle between the axis of the chute and the axis of the distributing device, in order to achieve the purpose of uniform distribution, the chute needs to move in two directions in the distributing process, one motion is swinging for changing the included angle between the chute and the axis of the distributing device, the purpose is to change the angle alpha of the chute, and the other motion is circular motion generated by driving the chute around the axis of the distributing device by means of a driving device, and the purpose is to change the angle beta of the chute. The uniform distribution of the materials is realized by changing the alpha angle and the beta angle, so that the aims of high yield, coke saving and the like are fulfilled.
The distributor of bell-less top equipment of imported P.W company adopts planetary differential structure, and the equipment adopts closed-circuit water cooling and nitrogen sealing, so that it has long service life and reliable action, but its structure is complex, maintenance cost is high, and production cost is high. The P.W company is continuously improved on an alpha-angle tilting mechanism, the alpha-angle mechanism is mainly in a planetary differential speed plus worm and gear structure, a drag ring does not move up and down, the structure has no obvious defects, and the P.W company has the defects of high required precision and high material requirement because the alpha-angle changes little in the actual use process and the number of used teeth is small.
Most of the current equipment of domestic furnace top equipment adopts a towing ring to move up and down to change an alpha angle, the problem of lateral component force is not solved, and no matter the distributing device is in a connecting rod form, a hydraulic cylinder form and a steel wire rope form, the transmission mechanism under the alpha angle of a chute changing angle is generally divided into two types: the change of the alpha angle in the material distribution process is realized by driving a crank of the chute to rotate through the up-and-down movement of a towing ring provided with a lower slewing bearing, and the change of the alpha angle in the material distribution process is realized by driving a crank chute. Chute crank or crank spout are pitch arc motion when the chute angle changes, and the towing lug is linear motion from top to bottom, therefore the towing lug bears the yawing force, general method is for increasing the displacement that track and gyro wheel control towing lug received the yawing force and produced, alpha angle change is very little in the in-service use process, the frequency is high, track and gyro wheel local wear, cause the cloth precision to reduce, influence the normal use of equipment, because the structure has the defect towing lug to receive the yawing force to cause the equipment precision poor, short service life, can't compete with foreign equipment.
In conclusion, it is an urgent need to solve the problem of the lateral force caused by the underdrive by researching a novel distributor structure.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a blast furnace top bell-less distributor which has a simpler structure and has no lateral force in the process of up-and-down movement of a towing ring.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a blast furnace top bell-less distributor comprises a distributor box body, a chute, a beta angle rotation driving mechanism and an alpha angle tilting mechanism, wherein the beta angle rotation driving mechanism is used for controlling the chute;
the alpha-angle tilting mechanism comprises a towing ring, a slewing bearing arranged on the towing ring, an upper transmission system for driving the towing ring to move up and down and a lower transmission mechanism for converting the straight-line motion of the towing ring into the tilting motion of the chute;
the key technology is as follows: the lower transmission mechanism comprises a set of planet wheel linear mechanism, and a double output shaft in the planet wheel linear mechanism is connected with a rotating shaft which drives the chute to rotate through a crank connecting rod mechanism connected to two ends of the double output shaft.
Preferably, the crank-link mechanism comprises two cranks respectively connected with two ends of the dual output shafts, two connecting rods hinged with the cranks and two chute cranks hinged with the connecting rods.
The chute crank drives the structure that the chute fascinates and divides into two kinds: one is without chute bracket, wherein the chute crank is directly and fixedly connected with the chute through at least one pin shaft, the rotating shaft is hinged with a rotating sleeve on the distributing device and is positioned at the side part of the chute, and the chute crank drives the chute to rotate along the rotating shaft; the double output shafts are arranged in parallel with the rotating shaft.
The other is a transmission belt chute bracket, wherein the chute crank is connected with a rotating shaft, the rotating shaft is hinged on a rotating sleeve on the distributing device, and the rotating shaft is connected with the chute through the chute bracket and drives the chute to rotate along the rotating shaft; the double output shafts are arranged in parallel with the rotating shaft.
As a preferable mode of the prior art, the β -angle rotation driving mechanism includes a rotating motor, a speed reducer, a rotating gear, an upper slewing bearing engaged with the rotating gear, and a rotating sleeve connected to the upper slewing bearing, and the speed reducer drives the upper slewing bearing through the rotating gear.
Preferably, the planet wheel linear structure is divided into the following schemes:
1. the planet wheel linear mechanism is fixed on the rotary sleeve and is connected with the moving coil of the slewing bearing through a driving rod, and the driving rod is arranged on the moving coil of the slewing bearing; the planet wheel linear mechanism comprises a fixed gear fixed on the rotating sleeve, a planet wheel meshed with the fixed gear, a planet connecting rod connected with the planet wheel and a double output shaft connected with the planet connecting rod; the pitch circle diameter of the fixed gear is 2 times of that of the planet gear, the driving rod is hinged with a pin shaft fixed on the pitch circle of the planet gear, the center line of the driving rod passes through the circle center of the fixed gear, and the axis of the double output shafts passes through the circle center of the fixed gear; one end of the planet connecting rod is matched with a central shaft of the planet wheel through a bearing, the other end of the planet connecting rod is fixedly connected with the double output shafts, and the central shaft is fixedly connected with the planet wheel.
2. The planet wheel linear mechanism is fixed on the rotary sleeve and is connected with the moving coil of the slewing bearing through a driving rod, and the driving rod is arranged on the moving coil of the slewing bearing;
the planet wheel linear mechanism comprises a fixed gear fixed on the rotating sleeve, a planet wheel meshed with the fixed gear, a planet connecting rod connected with the planet wheel and a double output shaft connected with the planet connecting rod; the pitch circle diameter of the fixed gear is 2 times of that of the planet gear, the driving rod is hinged with a pin shaft fixed on the pitch circle of the planet gear, the center line of the driving rod passes through the circle center of the fixed gear, and the axis of the double output shafts passes through the circle center of the fixed gear; one end of the planet connecting rod is matched with a bearing arranged on the planet wheel through a central shaft fixedly connected with the planet connecting rod, and the other end of the planet connecting rod is fixedly connected with the double output shafts.
3. The planet wheel linear mechanism is fixed on the rotary sleeve and is connected with the moving coil of the slewing bearing through a driving rod, and the driving rod is arranged on the moving coil of the slewing bearing;
the planet wheel linear mechanism comprises a fixed gear fixed on the rotating sleeve, a planet wheel meshed with the fixed gear, a planet connecting rod connected with the planet wheel and a double output shaft connected with the planet connecting rod; the pitch circle diameter of the fixed gear is 2 times of that of the planet gear, the driving rod is hinged with a pin shaft fixed on the pitch circle of the planet gear, the center line of the driving rod passes through the circle center of the fixed gear, and the axis of the double output shafts passes through the circle center of the fixed gear; one end of the planet connecting rod is matched with a central shaft on the planet wheel through a bearing, the other end of the planet connecting rod is fixedly connected with the double output shafts, and the central shaft is matched with the bearing arranged on the planet wheel.
4. The planet wheel linear mechanism is fixed on the rotary sleeve and is connected with the moving coil of the slewing bearing through a driving rod, and the driving rod is arranged on the moving coil of the slewing bearing;
the planet wheel linear mechanism comprises a fixed gear fixed on the rotating sleeve, a planet wheel meshed with the fixed gear, a planet connecting rod connected with the planet wheel and a double output shaft connected with the planet connecting rod; the pitch circle diameter of the fixed gear is 2 times of that of the planet gear, the planet gear is provided with a bearing or a shaft sleeve, the driving rod is matched with the bearing seat through a pin shaft arranged at the lower end of the driving rod, the axis of the pin shaft passes through the pitch circle of the planet gear, the central line of the driving rod passes through the circle center of the fixed gear, and the axis of the double output shaft passes through the circle center of the fixed gear; one end of the planet connecting rod is matched with a central shaft of the planet wheel through a bearing, the other end of the planet connecting rod is fixedly connected with the double output shafts, and the central shaft is fixedly connected with the planet wheel.
Preferably, the dual output shafts are engaged with bearings fixed to the rotating sleeve, and the dual output shafts are supported by the bearings.
The center line of the driving rod, the circle center of the planet wheel and the circle center of the fixed gear cannot be located on the same straight line, so that dead points are avoided.
The dual output shafts can also adopt the following structures: and the double output shafts are replaced by a left output shaft and a right output shaft which are respectively connected with a planetary connecting rod.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the alpha-angle lower transmission mechanism of the distributing device is realized by adopting a set of planetary linear motion mechanism and two sets of crank-link mechanisms, wherein the principle of the planetary linear mechanism is reverse use and deformation of the Carden planetary linear mechanism (see the second section of the mechanism part 32 of mechanical design Manual published by mechanical industry publishers), and the planetary linear mechanism outputs power to the crank of the chute through a connecting rod so as to drive the chute to tilt around a rotating shaft; in the process of changing the alpha angle of the chute, the driving rod always moves linearly under the driving of the towing ring, the towing ring has no lateral force, the structure of the product has no defect, and meanwhile, the track and the idler wheel for controlling the towing ring are saved, so that the whole structure is greatly simplified, the precision of the equipment can be ensured, the long service life is realized, the major breakthrough is realized in the localization of the large-scale blast furnace top equipment, and the manufacturing cost is only 1/3 compared with the foreign product planetary differential distributing device.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view with the distributor box removed;
FIG. 3 is a schematic view of the left side structure of FIG. 2;
fig. 4 is a schematic diagram of a planetary linear mechanism;
wherein, 1, a speed reducer; 2. a rotating electric machine; 3. uploading a transmission system; 4. an upper slewing bearing; 5. a top cover; 6. a pin shaft; 7. a chute; 8. the device comprises a planet wheel linear mechanism 8-1, a fixed gear 8-2, a driving rod 8-3, a central shaft 8-4, a planet wheel 8-5, a planet connecting rod 8-6, a bearing 8-7 and a double output shaft; 9. rotating the sleeve; 10. pulling a ring; 11. a distributing device box body; 12. a rotating gear; 13. a slewing bearing; 14. a crank; 15. a connecting rod; 16. a chute crank; 17. a rotating shaft.
Detailed Description
The invention is described in detail below with reference to the following figures and specific examples:
referring to fig. 1-4, the present embodiment includes several major parts of a distributor box 11, a top cover 5 above the distributor box 11, a chute 7, a β -angle rotation driving mechanism for controlling the chute 7, and an α -angle tilting mechanism.
The beta-angle rotation driving mechanism is of a structure on the existing bell-less distributor and mainly comprises a rotating motor 2, a speed reducer 1, a rotating gear 12, an upper slewing bearing 4 meshed with the rotating gear 12 and a rotating sleeve 9 connected with the upper slewing bearing 4, wherein the speed reducer 1 is fixedly connected with the rotating gear 12, the rotating gear 12 is meshed with the upper slewing bearing 4, so that the upper slewing bearing 4 is driven to rotate, the upper slewing bearing 4 drives the rotating sleeve 9 to rotate, and the beta-angle change of the chute 7 is realized.
The alpha-angle tilting mechanism mainly aims at improving partial structure of the alpha-angle tilting mechanism, and mainly comprises a towing ring 10, a slewing bearing 13 arranged on the towing ring 10, an upper transmission system 3 for driving the towing ring 10 to move up and down, and an alpha-angle lower transmission mechanism for converting the vertical linear motion of the towing ring 10 into tilting of a chute 7; the upper transmission system 3 is in the form of a hydraulic cylinder, a double-link, a four-link, a lead screw, a steel wire rope, a gear rack and the like, and has the main function of driving the drag ring 10 to move up and down linearly.
The key improvement lies in that: the lower transmission mechanism of the chute alpha angle comprises a set of planet wheel linear mechanism 8 positioned on one side of a rotating sleeve 9 and two sets of crank connecting rods positioned on two sides of the rotating sleeve 9, wherein each set of crank connecting rod mechanism comprises a crank 14, a connecting rod 15 hinged with the crank 14 and a chute crank 16 hinged with the connecting rod 15, a rotating shaft 17 penetrates through the chute crank 16, the rotating shaft 17 is hinged and positioned on the rotating sleeve 9, the two cranks 14 on two sides are respectively hinged with two ends of a double output shaft 8-7 of an output end in the planet wheel linear mechanism 8, the other ends of the two connecting rods 15 are hinged with the chute crank 16, and the chute 7 is driven to rotate along the rotating shaft 17 through the chute crank 16 during action.
The structures that the chute crank 16 drives the chute 7 to tilt at the angle alpha are divided into two types: one structure is shown in the attached drawings 2 and 3 of the embodiment, wherein the chute crank 16 is directly and fixedly connected with the chute 7 through two pin shafts 6, a chute bracket is omitted, one end of the rotating shaft 17 is hinged on the rotating sleeve 9, and the other end of the rotating shaft penetrates through the chute crank 16 and supports the lateral lower part of the chute 7, so that in operation, the chute crank 16 drives the chute 7 to rotate along the rotating shaft 17; wherein the dual output shafts 8-7 are arranged in parallel with the rotating shaft 17.
The other structure is as follows: the chute crank 16 is connected with the rotating shaft 17, the rotating shaft 17 is further connected with a chute bracket (not shown in the figure), the chute bracket drives the chute 7 to tilt, the rotating shaft 17 is hinged to the rotating sleeve 9 on the distributing device, when the chute device works, the chute crank 16 drives the rotating shaft 17 to rotate, the rotating shaft 17 drives the chute bracket to rotate, the chute 7 is further driven to tilt through the chute bracket, the change of an angle alpha is realized, and the double output shafts 8-7 are arranged in parallel with the rotating shaft 17. The rotary shaft 17 in this construction corresponds to a trunnion.
The planet wheel linear mechanism 8 is positioned on the rotating sleeve 9 and is connected with the moving coil of the slewing bearing 13 through the driving rod 8-2, and the driving rod 8-2 is arranged on the moving coil of the slewing bearing 13. The structure of the planet wheel linear mechanism 8 is divided into the following parts:
1. the device comprises a fixed gear 8-1 fixed on a rotating sleeve 9, a planet wheel 8-4 meshed with the fixed gear 8-1, a planet connecting rod 8-5 connected with the planet wheel 8-4 and a double output shaft 8-7 connected with the planet connecting rod 8-5; the pitch circle diameter of the fixed gear 8-1 is 2 times of that of the planet gear 8-4, the driving rod 8-2 is hinged with a pin shaft fixed on the pitch circle of the planet gear 8-4, the center line of the driving rod passes through the circle center of the fixed gear 8-1, and the axis of the double output shaft 8-7 passes through the circle center of the fixed gear 8-1; one end of the planet connecting rod 8-5 is provided with a bearing, a central shaft 8-3 is fixed on the planet wheel 8-4, the central shaft 8-3 is matched with the bearing on the planet connecting rod 8-5, the lower end of the planet connecting rod 8-5 is fixedly connected with the double output shafts 8-7, the double output shafts 8-7 are special-shaped shafts, the special-shaped shafts are used for saving space and giving way to the planet wheel 8-4, and the double output shafts 8-7 are supported and rotated through a left bearing 8-6 and a right bearing 8-6 which are fixed on the rotating sleeve 9. The center line of the driving rod 8-2, the circle center of the planet wheel 8-4 and the circle center of the fixed gear 8-1 cannot be positioned on the same straight line, so that dead points are eliminated.
2. Basically, the structure of the first planetary linear mechanism 8 is the same, except that: the planet wheel 8-4 is provided with a bearing, a central shaft 8-3 is matched with the planet wheel 8-4 through the bearing, the other end of the central shaft 8-3 is fixedly connected with the upper end of a planet connecting rod 8-5, and the planet connecting rod 8-5 is fixedly connected with a double output shaft 8-7.
3. Basically, the structure of the first planetary linear mechanism 8 is the same, except that: both the planet connecting rod 8-5 and the planet wheel 8-4 are provided with a disc bearing, and both ends of the central shaft 8-3 are respectively matched with the planet connecting rod 8-5 and the planet wheel 8-4 through bearings.
4. Basically, the structure of the first planetary linear mechanism 8 is the same, except that: the mode that the driving rod 8-2 is hinged with the planet wheel 8-4 at the lower part is changed, a bearing or a shaft sleeve is arranged on the pitch circle of the planet wheel 8-4, and a pin shaft is arranged at the lower end of the driving rod 8-2 and matched with the bearing or the shaft sleeve on the pitch circle; the connection of the planet links 8-5 to the central shaft 8-3 in this configuration can be seen in the configuration 1-3 described above.
The principles of the planetary linear mechanisms 8 are the same, but the connection modes and connection relations among the components are changed.
The double output shafts 8-7 can be an integral shaft, and the transmission function can be realized by two output shafts fixed on two sides of the planet connecting rod 8-5, so long as the use requirement is met.
In specific implementation, only one set of crank link mechanism can be adopted according to the requirement, the other side of the rotating sleeve 9 is provided with a driven supporting structure, and the double output shafts 8-7 are of a common single output structure; or the double output shafts 8-7 are disconnected, one side is an output driving structure, and the other side is a driven supporting structure.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A blast furnace top bell-less distributor comprises a distributor box body (11), a chute (7), a beta angle rotation driving mechanism and an alpha angle tilting mechanism, wherein the beta angle rotation driving mechanism is used for controlling the chute (7);
the alpha-angle tilting mechanism comprises a towing ring (10), a slewing bearing (13) arranged on the towing ring (10), an upper transmission system (3) for driving the towing ring (10) to move up and down and a lower transmission mechanism for converting the up-and-down linear motion of the towing ring (10) into the tilting motion of the chute (7);
the method is characterized in that: the lower transmission mechanism comprises a set of planet wheel linear mechanism (8), and a double output shaft (8-7) in the planet wheel linear mechanism (8) is connected with a rotating shaft (17) which drives the chute (7) to rotate through a crank connecting rod mechanism connected to the two ends of the double output shaft;
the planet wheel linear mechanism is fixed on the rotary sleeve (9) and is connected with a moving coil of the slewing bearing (13) through a driving rod (8-2), and the driving rod (8-2) is arranged on the moving coil of the slewing bearing (13);
the planet wheel linear mechanism comprises a fixed gear (8-1) fixed on a rotating sleeve (9), a planet wheel (8-4) meshed with the fixed gear (8-1), a planet connecting rod (8-5) connected with the planet wheel (8-4) and a double output shaft (8-7) connected with the planet connecting rod (8-5); the pitch circle diameter of the fixed gear (8-1) is 2 times of that of the planet gear (8-4), the driving rod (8-2) is hinged with a pin shaft fixed on the pitch circle of the planet gear (8-4), the center line of the driving rod passes through the circle center of the fixed gear (8-1), and the axis of the double output shaft (8-7) passes through the circle center of the fixed gear (8-1); one end of the planet connecting rod (8-5) is matched with a central shaft (8-3) of the planet wheel (8-4) through a bearing, the other end of the planet connecting rod is fixedly connected with the double output shaft (8-7), and the central shaft (8-3) is fixedly connected with the planet wheel (8-4);
or,the planet wheel linear mechanism is fixed on the rotary sleeve (9) and is connected with a moving coil of the slewing bearing (13) through a driving rod (8-2), and the driving rod (8-2) is arranged on the moving coil of the slewing bearing (13);
the planet wheel linear mechanism comprises a fixed gear (8-1) fixed on a rotating sleeve (9), a planet wheel (8-4) meshed with the fixed gear (8-1), a planet connecting rod (8-5) connected with the planet wheel (8-4) and a double output shaft (8-7) connected with the planet connecting rod (8-5); the pitch circle diameter of the fixed gear (8-1) is 2 times of that of the planet gear (8-4), the driving rod (8-2) is hinged with a pin shaft fixed on the pitch circle of the planet gear (8-4), the center line of the driving rod passes through the circle center of the fixed gear (8-1), and the axis of the double output shaft (8-7) passes through the circle center of the fixed gear (8-1); one end of the planet connecting rod (8-5) is matched with a bearing arranged on the planet wheel (8-4) through a central shaft (8-3) fixedly connected with the planet connecting rod, and the other end of the planet connecting rod is fixedly connected with the double output shafts;
or,the planet wheel linear mechanism is fixed on the rotary sleeve (9) and is connected with a moving coil of the slewing bearing (13) through a driving rod (8-2), and the driving rod (8-2) is arranged on the moving coil of the slewing bearing (13);
the planet wheel linear mechanism comprises a fixed gear (8-1) fixed on a rotating sleeve (9), a planet wheel (8-4) meshed with the fixed gear (8-1), a planet connecting rod (8-5) connected with the planet wheel (8-4) and a double output shaft (8-7) connected with the planet connecting rod (8-5); the pitch circle diameter of the fixed gear (8-1) is 2 times of that of the planet gear (8-4), the driving rod (8-2) is hinged with a pin shaft fixed on the pitch circle of the planet gear (8-4), the center line of the driving rod passes through the circle center of the fixed gear (8-1), and the axis of the double output shaft (8-7) passes through the circle center of the fixed gear (8-1); one end of the planet connecting rod (8-5) is matched with a central shaft (8-3) on the planet wheel (8-4) through a bearing, the other end of the planet connecting rod is fixedly connected with a double output shaft (8-7), and the central shaft (8-3) is matched with the bearing arranged on the planet wheel (8-4);
or,the planet wheel linear mechanism is fixed on the rotary sleeve (9) and is connected with a moving coil of the slewing bearing (13) through a driving rod (8-2), and the driving rod (8-2) is arranged on the moving coil of the slewing bearing (13);
the planet wheel linear mechanism comprises a fixed gear (8-1) fixed on a rotating sleeve (9), a planet wheel (8-4) meshed with the fixed gear (8-1), a planet connecting rod (8-5) connected with the planet wheel (8-4) and a double output shaft (8-7) connected with the planet connecting rod (8-5); the pitch circle diameter of the fixed gear (8-1) is 2 times of that of the planet gear (8-4), a bearing or a shaft sleeve is arranged on the planet gear (8-4), the driving rod (8-2) is matched with the bearing seat through a pin shaft arranged at the lower end of the driving rod, the axis of the pin shaft passes through the pitch circle of the planet gear (8-4), the central line of the driving rod (8-2) passes through the circle center of the fixed gear (8-1), and the axis of the double output shaft (8-7) passes through the circle center of the fixed gear (8-1); one end of the planet connecting rod (8-5) is matched with a central shaft (8-3) of the planet wheel (8-4) through a bearing, the other end of the planet connecting rod is fixedly connected with the double output shaft (8-7), and the central shaft (8-3) is fixedly connected with the planet wheel (8-4);
the double output shafts (8-7) are matched with bearings (8-6) fixed on a rotating sleeve (9);
the center line of the driving rod (8-2), the circle center of the planet wheel (8-4) and the circle center of the fixed gear (8-1) cannot be positioned on the same straight line.
2. The blast furnace top bell-less distributor of claim 1, wherein: the crank-link mechanism comprises two cranks (14) respectively connected with two ends of the double output shafts (8-7), two connecting rods (15) hinged with the cranks (14) and two chute cranks (16) hinged with the connecting rods (15).
3. The blast furnace top bell-less distributor of claim 2, wherein: the chute crank (16) is directly and fixedly connected with the chute (7) through at least one pin shaft (6), the rotating shaft (17) is hinged with the rotating sleeve (9) on the distributing device and is positioned at the side part of the chute (7), and the chute crank (16) drives the chute (7) to rotate along the rotating shaft (17);
the double output shafts (8-7) are arranged in parallel with the rotating shaft (17).
4. The blast furnace top bell-less distributor of claim 2, wherein: the chute crank (16) is connected with a rotating shaft (17), the rotating shaft (17) is hinged to a rotating sleeve (9) on the distributing device, and the rotating shaft (17) is connected with the chute (7) through a chute bracket and drives the chute (7) to rotate along the rotating shaft (17);
the double output shafts (8-7) are arranged in parallel with the rotating shaft (17).
5. The blast furnace top bell-less distributor as defined in claim 3 or 4, wherein: the beta-angle rotation driving mechanism comprises a rotating motor (2), a speed reducer (1), a rotating gear (12), an upper slewing bearing (4) meshed with the rotating gear (12) and a rotating sleeve (9) connected with the upper slewing bearing (4), wherein the speed reducer (1) drives the upper slewing bearing (4) through the rotating gear (12).
6. The blast furnace top bell-less distributor as defined in claim 5, wherein: the double output shafts (8-7) are replaced by a left output shaft and a right output shaft which are respectively connected with the planetary connecting rods (8-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210329455.9A CN102827975B (en) | 2012-09-08 | 2012-09-08 | Bell-less distributor on top of blast furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210329455.9A CN102827975B (en) | 2012-09-08 | 2012-09-08 | Bell-less distributor on top of blast furnace |
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| Publication Number | Publication Date |
|---|---|
| CN102827975A CN102827975A (en) | 2012-12-19 |
| CN102827975B true CN102827975B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210329455.9A Expired - Fee Related CN102827975B (en) | 2012-09-08 | 2012-09-08 | Bell-less distributor on top of blast furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107576197B (en) * | 2017-09-01 | 2019-12-06 | 中冶东方工程技术有限公司 | mechanical transmission submerged arc furnace distributing device |
| CN114395652A (en) * | 2021-12-24 | 2022-04-26 | 安阳钢铁股份有限公司 | Process method for online replacement of large-scale blast furnace throat cooling wall protection plate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1436858A (en) * | 2003-01-23 | 2003-08-20 | 李玉清 | Chute-type furnace roof distributor driven via self-centering combined link rod |
| CN102363822A (en) * | 2011-11-11 | 2012-02-29 | 李玉清 | Double-cylinder yoke bell-less distributor for blast furnace |
| CN202786287U (en) * | 2012-09-08 | 2013-03-13 | 李玉清 | Blast furnace top bell-less distributor |
-
2012
- 2012-09-08 CN CN201210329455.9A patent/CN102827975B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1436858A (en) * | 2003-01-23 | 2003-08-20 | 李玉清 | Chute-type furnace roof distributor driven via self-centering combined link rod |
| CN102363822A (en) * | 2011-11-11 | 2012-02-29 | 李玉清 | Double-cylinder yoke bell-less distributor for blast furnace |
| CN202786287U (en) * | 2012-09-08 | 2013-03-13 | 李玉清 | Blast furnace top bell-less distributor |
Non-Patent Citations (1)
| Title |
|---|
| 机械设计手册编委会编著施永乐主编.机械设计手册新版第2卷第13篇机构.《机械设计手册新版第2卷第13篇机构》.机械工业出版社,2004,65-66页. * |
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| CN102827975A (en) | 2012-12-19 |
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