CN112524945B - Rolling sagger rolling progressive mechanism and rolling progressive method - Google Patents
Rolling sagger rolling progressive mechanism and rolling progressive method Download PDFInfo
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- CN112524945B CN112524945B CN202110016727.9A CN202110016727A CN112524945B CN 112524945 B CN112524945 B CN 112524945B CN 202110016727 A CN202110016727 A CN 202110016727A CN 112524945 B CN112524945 B CN 112524945B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/26—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/38—Arrangements of devices for charging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/40—Arrangements of controlling or monitoring devices
Abstract
A rolling sagger rolling progressive mechanism and a rolling progressive method, belonging to the technical field of high-temperature sintering kilns. The utility model provides a roll sagger and roll progressive mechanism, its includes a plurality of lifting wheels for the cylinder, and the axis of lifting wheel is parallel to each other on three-dimensional space with the axis of sagger, and the axis interval of two adjacent lifting wheels is less than the diameter of sagger outline cross section, and every lifting wheel is connected with independent elevating system and makes every lifting wheel independently go up and down in vertical direction. The rolling progressive method of the rolling sagger progressive mechanism realizes the propulsion of the sagger in the advancing direction by utilizing the lifting coordination of the lifting wheel. The rolling sagger rolling progressive mechanism and the rolling progressive method can shorten the overall length of the kiln, adjust the sagger autorotation speed and ensure the overall reliability of a mechanical structure, and can meet the sintering requirements of related materials.
Description
Technical Field
The invention belongs to the technical field of high-temperature sintering kilns, and particularly relates to a rolling sagger rolling progressive mechanism and a rolling progressive method.
Background
The high-temperature sintering furnace is an important heating device commonly used in industry, and is widely applied to powder sintering or blank sintering of active metals, refractory metals and alloys thereof, ceramic materials and dissimilar materials. The conventional high-temperature sintering furnace can be mainly divided into a pusher kiln and a rotary furnace according to the structure thereof. The main body of the push plate kiln is a section of tunnel type high-temperature kiln body, saggars containing materials to be sintered are sequentially queued to be pushed into the kiln body from the kiln head, and high-temperature sintering is carried out in the kiln for a plurality of times. The push plate kiln can ensure the precision of temperature control through the tunnel kiln body, but the push plate kiln cannot enable materials to be rolled and mixed uniformly when being heated, and cannot meet the requirements of material coke discharging and air exhausting. The rotary furnace mainly comprises a cylindrical furnace body capable of rotating along the axis, a spiral propelling mechanism is arranged in the furnace body, materials are fed from one end of the furnace body and then heated at high temperature by heaters arranged above and below the furnace body, the furnace body rotates, and the materials slowly roll in the furnace body and move and are discharged to the other end. However, the temperature control of the rotary furnace is difficult to achieve the general accuracy of the push plate kiln due to the limitation of shape. In addition, the furnace body of the rotary furnace has very high requirements on the processing technology, the uniformity of the wall thickness of the furnace body is difficult to master due to the large volume of the furnace body, the processing precision is difficult to achieve, the air tightness is difficult to control, and small furnace body fragments fall off to cause irreversible damage to the whole sintering process.
In order to solve the problems of the above-mentioned kiln, the inventor has previously proposed a rolling sagger push slab tunnel kiln (chinese patent publication No. CN109959258A, herein incorporated by reference) comprising a tunnel kiln body and at least 2 sagger push slab units, the sagger push slab units comprising saggers and a push slab support, the push slab support comprising a push slab and a brace, the saggers having at least 1 revolution axis, the saggers being rotatable around the revolution axis, the brace supporting the saggers to be kept stationary in three-dimensional space relative to the push slab support, the push slab driving the saggers into and out of the tunnel kiln body; the rolling sagger push plate tunnel kiln further comprises a driving mechanism for driving the sagger to rotate. The kiln integrates the advantages of a push plate kiln and a rotary furnace, so that the temperature control of materials is accurate and the materials are uniformly mixed during sintering, and the processing difficulty of a furnace body is reduced.
In practical application, the tunnel kiln manufactured in the form of the tunnel kiln is found to have the following problems: firstly, the length of the push plate propelling mechanism is usually very long, so that the push plate propelling mechanism is not suitable for being placed in a laboratory for powder sintering small tests, the application scene is limited, and the hydraulic driving mechanism which is usually used for pushing the push plate to advance often has the problems of high mechanical failure rate, easy oil leakage and the like. Secondly, the driving mechanism for driving the sagger to rotate through the gear, the rack or the chain is easy to cause the problems of surface occlusion failure, adhesion and the like of the device under the action of high temperature, dust and the like in the tunnel kiln, on one hand, the sagger rotation speed is out of control, and on the other hand, the reliability and the service life of the whole machine are also reduced. In addition, some powder sintering processes need to adopt different material turning rates at different stages, which requires that the rotation speed of each sagger is flexibly controllable at different positions in the kiln, and the kiln disclosed by the patent document can be realized only by increasing the number of racks/chains, so that the reliability of the whole machine is further reduced, and the cost is also increased.
Disclosure of Invention
The invention aims to provide a rolling sagger rolling progressive mechanism and a rolling progressive method, which can be used for a push plate tunnel kiln, realize the overall length reduction of the kiln, the adjustment of the sagger rotation speed and the overall reliability of a mechanical structure, and can meet the sintering requirements of related materials.
The embodiment of the invention is realized by the following steps:
in order to achieve the above object, in one aspect, the present invention provides a rolling sagger rolling and advancing mechanism, which includes a plurality of lifting wheels that are arranged at intervals and are cylindrical, axes of the lifting wheels are parallel to an axis of a sagger whose outer contour is cylindrical in a three-dimensional space, an axis distance between two adjacent lifting wheels is smaller than a diameter of a cross section of the outer contour of the sagger, and each lifting wheel is connected to an independent lifting mechanism so that each lifting wheel can independently lift in a vertical direction. The power source of the lifting mechanism can be an air pump, a motor, a heat engine and the like, and the lifting action can be realized by any mechanisms such as a cylinder-piston, a turbine-worm, a gear-rack, a chain-chain wheel and the like, which are well known to those skilled in the art. The plurality of lifting wheels can be equally spaced, but the spacing between the axes of two adjacent lifting wheels is not required to be smaller than the diameter of the cross section of the outer contour of the sagger.
In a preferred embodiment of the present invention, the rolling sagger rolling and advancing mechanism further includes a plurality of supporting rollers having a cylindrical outer contour, the supporting rollers and the lifting rollers are alternately arranged at intervals, the axes of the supporting rollers and the axes of the lifting rollers are parallel to each other in a three-dimensional space, the height of the axes of the supporting rollers is lower than the height of the axes of the lifting rollers at the highest position and higher than the height of the axes of the lifting rollers at the lowest position, and the distance between the axes of two adjacent supporting rollers is smaller than the diameter of the cross section of the outer contour of the sagger. The distance between the plurality of support wheels can be equal, but the distance between the axes of two adjacent support wheels is not required to be equal as long as the condition that the distance between the axes of two adjacent support wheels is smaller than the diameter of the cross section of the outer contour of the sagger is met.
In a preferred embodiment of the present invention, the at least one supporting roller is connected to a rotation driving mechanism, so as to obtain a power for driving the sagger to rotate. In order to realize the flexible and adjustable rotating speed of the saggars at different positions, two, three, four, five, six or more mutually independent rotary driving mechanisms can be arranged to be connected with the supporting wheels at different positions, and more preferably, the supporting wheels and the lifting wheels are made of ceramics. The power source of the rotation driving mechanism can be in the common forms of an electric motor, a heat engine, an air pump and the like, and the riding wheel can be connected with the power source through the common transmission mechanisms such as a coupler, a belt wheel, a gear and the like or a combination thereof, and the mechanisms are also well known by the skilled person.
In a preferred embodiment of the present invention, the distance between the axes of the two adjacent lifting wheels is smaller than the radius of the cross section of the outer contour of the sagger.
In a preferred embodiment of the present invention, the at least one lifting wheel is further connected to a rotation driving mechanism, so as to obtain a power for driving the sagger to rotate. In order to realize the flexible adjustment of the rotating speed of the saggars at different positions, two, three, four, five, six or more mutually independent rotary driving mechanisms can be arranged to be connected with the lifting wheels at different positions, and more preferably, the lifting wheels are made of ceramics. The power source of the rotation driving mechanism can be in the common forms of an electric motor, a heat engine, an air pump and the like, and the riding wheel can be connected with the power source through the common transmission mechanisms such as a coupler, a belt wheel, a gear and the like or a combination thereof, and the mechanisms are also well known by the skilled person.
The invention provides a rolling progressive method, wherein the lifting wheels comprise a first lifting wheel, a second lifting wheel and a third lifting wheel which are sequentially arranged in the advancing direction, the riding wheels comprise a first riding wheel and a second riding wheel which are sequentially arranged in the advancing direction, and in the initial state of the method, the sagger, the first lifting wheel, the first riding wheel and the second lifting wheel are tangent and supported and are in a stable state; then, the second lifting wheel descends and is separated from the sagger, and the sagger rolls towards the advancing direction, is tangent to the second lifting wheel and is supported again; the second lifting wheel further descends, the highest point of the second lifting wheel is lower than the axial height of the first supporting wheel, and the sagger continuously rolls towards the advancing direction by means of inertia, so that the sagger is separated from the contact with the first supporting wheel, goes over the highest point of the second lifting wheel and is tangent to the second supporting wheel adjacent to the second supporting wheel in the advancing direction to obtain support; the second lifting wheel rises, the sagger keeps tangent with the second lifting wheel and the second riding wheel, moves towards the advancing direction under the action of the lifting thrust of the second lifting wheel and reaches a stable state. The above process is repeated by the lifting wheel in the forward direction, so that the sagger completes the whole process from entering the kiln body to leaving the kiln body.
The invention provides a rolling progressive method, wherein the lifting wheels comprise a first lifting wheel, a second lifting wheel and a third lifting wheel which are arranged in sequence in the advancing direction, and in the initial state of the method, the sagger, the first lifting wheel, the second lifting wheel, the tangent and supported state is in a stable state; then, the second lifting wheel descends, the sagger rolls towards the advancing direction under the action of gravity and keeps tangent with the first lifting wheel and the second lifting wheel; when the second lifting is descended to the state that the sagger is tangent to the third lifting wheel and obtains support, the second lifting wheel does not descend any more; and then, the third lifting wheel descends and is separated from the contact with the sagger, the sagger rolls towards the advancing direction and is tangent to the third lifting wheel again, and when the third lifting wheel descends to be at the same height on the axis as the second lifting wheel, the second lifting wheel and the third lifting wheel synchronously ascend to reach the same axis height as the initial state. The above process is repeated by the lifting wheel in the forward direction, so that the sagger completes the whole process from entering the kiln body to leaving the kiln body.
The invention provides a rolling progressive method, wherein the lifting wheels comprise a first lifting wheel, a second lifting wheel and a third lifting wheel which are arranged in sequence in the advancing direction, and in the initial state of the method, the sagger, the first lifting wheel and the second lifting wheel are tangent and supported and are in a stable state; then, the second lifting wheel descends, the sagger rolls towards the advancing direction and keeps tangent with the first lifting wheel and the second lifting wheel continuously; when the second lifting wheel descends until the sagger is tangent to and supported by a third lifting wheel which is adjacent to the sagger in the advancing direction, the second lifting wheel does not descend any more; and then, the third lifting wheel descends and the second lifting wheel ascends simultaneously, the sagger is kept tangent to the second lifting wheel and the third lifting wheel and rolls in the advancing direction, and when the third lifting wheel descends and the second lifting wheel ascends to the same height on the axis, the second lifting wheel and the third lifting wheel synchronously ascend to reach the same axis height as the initial state. The above process is repeated by the lifting wheel in the forward direction, so that the sagger completes the whole process from entering the kiln body to leaving the kiln body.
The invention provides a rolling progressive method, wherein the lifting wheels comprise a first lifting wheel, a second lifting wheel, a third lifting wheel and a fourth lifting wheel which are arranged in sequence in the advancing direction, and the rolling progressive method is characterized by comprising the following steps: in an initial state, the first lifting wheel and the third lifting wheel are equal in height in the horizontal direction and higher than the second lifting wheel, and the sagger, the first lifting wheel, the second lifting wheel and the third lifting wheel are tangent and supported and are in a stable state; then, the third lifting wheel descends and the second lifting wheel ascends, and the sagger rolls towards the advancing direction and keeps tangent with the second lifting wheel and the third lifting wheel continuously; when the third lifting wheel descends to the lowest point and the second lifting wheel ascends to the same level as the first lifting wheel, the sagger is tangent to and supported by the second lifting wheel, the third lifting wheel and the fourth lifting wheel and is in a stable state. The above process is repeated by the lifting wheel in the forward direction, so that the sagger completes the whole process from entering the kiln body to leaving the kiln body.
The rotating speed of the rotating driving mechanism connected with the lifting wheel or the riding wheel is adjusted to control the rotating speed of the lifting wheel or the riding wheel, so that the autorotation speeds of the saggars at different positions are controlled, and the material turning speed of the materials in the saggars is controlled.
The rolling sagger rolling progressive mechanism and the rolling progressive method provided by the invention are designed particularly for the improvement of the previously proposed push plate tunnel kiln, and at least the following beneficial effects can be achieved:
(1) the push plate translation pushing mechanism in the existing push plate tunnel kiln is omitted, the overall length of the kiln is greatly shortened, the applicable scene is rich, and the requirement of a laboratory on material sintering small tests can be met.
(2) The sagger translation and rotation driving mechanisms are integrated in a novel mode, and independent regulation and control of the advancing speed and the rotation speed of the sagger are achieved through different integration modes of the supporting wheels and the lifting wheels.
(3) The driving structure positioned in the kiln is stable and reliable, and the problems of meshing failure of gears, adhesion of transmission parts and the like are avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of a first form of rolling-sagger tumbling advancement mechanism in a first state;
FIG. 2 is a schematic view of a first version of a rolling-sagger tumbling advancement mechanism in a second state;
FIG. 3 is a schematic view of the first form of rolling-sagger tumbling advancement mechanism in a third state;
FIG. 4 is a schematic view of the first form of rolling-sagger tumbling advancement mechanism in a fourth state;
FIG. 5 is a schematic view of a first form of rolling-sagger tumbling advancement mechanism in a fifth state;
FIG. 6 is a schematic view of a second form of rolling-sagger tumbling advancement mechanism in a first state;
FIG. 7 is a schematic view of a second form of rolling-sagger roll-advancement mechanism in a second state;
FIG. 8 is a schematic view of a second form of rolling-sagger tumbling advancement mechanism in a third state;
FIG. 9 is a schematic view of a second form of rolling-sagger tumbling advancement mechanism in a fourth state;
FIG. 10 is a schematic view of a second form of rolling-sagger tumbling advancement mechanism in a fifth state;
fig. 11 is a schematic view of the second form of rolling-sagger tumbling advancing mechanism in a sixth state.
Description of the reference numerals: 1. the sagger comprises a sagger body 21, a first lifting wheel 22, a second lifting wheel 23, a third lifting wheel 24, a fourth lifting wheel 31, a first supporting wheel 32, a second supporting wheel 110 and an advancing direction.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
The invention will be further described with reference to the accompanying drawings and specific examples, which are provided only to assist understanding of the technical solutions of the invention and are not meant to be limiting in any way.
Example 1
The present embodiment provides a rolling-sagger tumbling advancement mechanism. As shown in fig. 1, it is a schematic sectional view of a first rolling sagger rolling and advancing mechanism of the present invention in a first state, and it includes a sagger 1, three lifting wheels arranged at equal intervals and two riding wheels arranged at equal intervals. The lifting wheel and the riding wheel are cylinders made of ceramic materials. The external contour of the sagger 1 is a cylinder. The axes of the lifting wheel, the riding wheel and the sagger 1 are parallel to each other in a three-dimensional space.
The lifting wheels include a first lifting wheel 21, a second lifting wheel 22, and a third lifting wheel 23. The riding wheels comprise a first riding wheel 31 and a second riding wheel 32. The lifting wheels and the supporting wheels are arranged at intervals, namely one lifting wheel is arranged between every two supporting wheels (for example, between the first supporting wheel 31 and the second supporting wheel 32), one supporting wheel is arranged between every two lifting wheels (for example, between the first lifting wheel 21 and the second lifting wheel 22), and the axial distance between every two adjacent lifting wheels and the axial distance between every two adjacent supporting wheels are both smaller than the diameter of the cross section of the outer contour of the sagger 1. The axial line height of the riding wheel is fixed and consistent, the lifting wheel can lift along the vertical direction, and the axial line height of the lifting wheel at the highest position is higher than that of the riding wheel, and the axial line height of the lifting wheel at the lowest position is lower than that of the riding wheel.
The outer contour of the sagger 1 is tangent to at least one lifting wheel or riding wheel to obtain support, and when the sagger 1 is in a stable state between two adjacent lifting wheels (for example, between the first lifting wheel 21 and the second lifting wheel 22), the sagger 1 is tangent to and supported by the two lifting wheels and the riding wheel (for example, the first riding wheel 31) between the two lifting wheels. Each lifting wheel is connected to a separate lifting mechanism (not shown) so that each lifting wheel can be independently lifted in the vertical direction. Each idler is connected to an independent rotary drive mechanism (not shown in the figures) which can independently control the rotational speed of the idler. Namely, the riding wheel belongs to a driving wheel for driving the sagger 1 to rotate, and the lifting wheel does not provide the sagger 1 rotation driving force and belongs to a driven wheel.
The embodiment also provides a working mode of the rolling sagger rolling and advancing mechanism, namely a rolling and advancing method of the rolling sagger rolling and advancing mechanism. Fig. 1-5 are schematic structural views of a rolling sagger tumbling and advancing mechanism in different working states according to an embodiment of the present invention. Fig. 1 is a schematic structural view of a first state, in which the sagger 1 is tangent to and supported by the first lifting wheel 21, the first riding wheel 31 and the second lifting wheel 22, and is in a stable state.
Fig. 2 is a schematic structural view in a second state, in which the second lifting wheel 22 descends, the supporting force of the sagger 1 on one side in the advancing direction 110 disappears and becomes unstable, and the sagger 1 rolls in the advancing direction 110, and is tangent to the second lifting wheel 22 and is supported again. In this state, the first riding wheel 31 and the second lifting wheel 22 together provide support for the sagger 1.
In the third state shown in fig. 3, as the second lifting wheel 22 descends further, the highest point of the second lifting wheel 22 is lower than the axial height of the first riding wheel 31, and the sagger 1 rolls continuously towards the advancing direction 100 by inertia, so as to be separated from the contact with the first riding wheel 31, and passes through the highest point of the second lifting wheel 22 and is tangent to the second riding wheel 32 to obtain support.
In the fourth state shown in fig. 4, the second lifting wheel 22 is lifted, the sagger 1 is kept in contact with the second lifting wheel 22 and the second supporting wheel 32, and moves to the advancing direction 100 by the lifting thrust of the second lifting wheel 22, and the fifth state shown in fig. 5 is reached. At this time, the sagger 1 is tangent to and supported by the second lifting wheel 22, the second supporting wheel 32 and the third lifting wheel 23, and is in a stable state. Through this process, the position of the sagger 1 is translated from the first state to the fifth state in the advancing direction 100. The sagger 1 translates the distance between the two idlers. The speed at which the sagger 1 rolls and advances can be controlled by controlling the lifting frequency of each lifting wheel.
In the above process, each of the working supporting rollers (including the first supporting roller 31, the second supporting roller 32, etc.) keeps rotating at a certain speed under the driving of the rotation driving mechanism, and when the sagger 1 is in contact with the supporting rollers, the sagger 1 obtains autorotation driving force under the action of friction force. For example, when the first riding wheel 31 keeps rotating counterclockwise, the sagger 1 in the first state will obtain the force of rotating clockwise. If the sintering process requires that the rotation speed of the sagger 1 in the fifth state is different from that in the first state, the sintering process can be realized only by adjusting the rotation speed of the second supporting roller 32. It should be understood that during the work process, each idler can rotate during the work of itself, and all the idlers can be kept rotating all the time, so that the technical effect of the embodiment of pushing the sagger 1 to roll and advance can be achieved, and the technical effect is within the protection scope of the embodiment of the invention. And the speed of a plurality of riding wheels can be adjusted to be different according to actual needs.
In this embodiment, the number of the lifting wheels is three, and the number of the riding wheels is two. In other embodiments, the number of the lifting wheels and the riding wheels should be adjusted according to actual process requirements, that is, the number of the lifting wheels is m, and the number of the riding wheels is n. Wherein m and n are positive integers of 1 or more.
It should be understood that in this embodiment, the lift wheels and idler wheels are cylindrical bodies of ceramic material. The ceramic material is high temperature resistant, can exist stably at high temperature and is not easy to expand with heat and contract with cold. The ceramic material adopted in the high-temperature sintering kiln can effectively improve the stability and the service life of the whole mechanism. In other embodiments, the lifting wheels and the riding wheels may be partially made of ceramic, for example, the inner surface of the lifting wheels and the riding wheels are made of ceramic, and the outer surface of the lifting wheels and the riding wheels are made of other materials. The technical effect that the lifting wheel and the riding wheel can realize the propelling of the sagger 1 through cooperation is within the protection scope of the embodiment.
Example 2
Fig. 6 is a schematic cross-sectional view of another rolling-sagger rolling-advancing mechanism provided in an embodiment of the present invention, including: sagger 1, first lifting wheel 21, second lifting wheel 22 and third lifting wheel 23. The lifting wheel is a cylinder made of ceramic materials. The external contour of the sagger 1 is a cylinder. The axes of the lifting wheel and the saggar 1 are parallel to each other in three-dimensional space. The axial line spacing of two adjacent lifting wheels is smaller than the radius of the cross section of the external contour of the sagger 1. The external profile of the sagger 1 is tangent to the two adjacent lifting wheels for support. Each lifting wheel is connected to a separate lifting mechanism (not shown) so that each lifting wheel can be independently lifted in the vertical direction. And each lifting wheel is also connected to an independent rotary drive mechanism (not shown in the figures) so that the rotary drive mechanisms can independently control the speed at which the lifting wheels rotate. That is, in this embodiment, the lifting wheel is a driving wheel for driving the sagger 1 to rotate.
The embodiment of the invention also provides another rolling progressive method of the rolling sagger rolling progressive mechanism. Fig. 6 to 10 are schematic structural views of another rolling-advancing method of the rolling-sagger rolling-advancing mechanism under different working states.
Fig. 6 shows a first state, in which the sagger 1 is tangent to the first lifting wheel 21 and the second lifting wheel 22 and supported, in a stable state. In the second state shown in fig. 7, the second lifting/lowering wheel 22 is lowered, and the sagger 1 rolls in the advancing direction 110 by gravity and continues to be tangent to the first and second lifting/lowering wheels 21, 22. In the third state shown in fig. 8, when the second lifting wheel 22 descends to the lowest point, the sagger 1 is tangent to and supported by the third lifting wheel 23, and the second lifting wheel 22 does not descend any more. The third lifting wheel 23 descends, the supporting force of the sagger 1 in the advancing direction 100 disappears and becomes unstable, the sagger continues to roll in the advancing direction 110 and is tangent to the third lifting wheel 23 again, and when the third lifting wheel 23 descends to be at the same height on the axis as the second lifting wheel 22, the fourth state shown in fig. 9 is achieved. The second elevating wheel 22 and the third elevating wheel 23 ascend in synchronization to reach a fifth state as shown in fig. 10. At this time, the sagger 1 is tangent to and supported by the second lifting wheel 22 and the third lifting wheel 23, and is in a stable state. Through this process, the position of the sagger 1 is translated from the first state to the fifth state in the advancing direction 100. The sagger 1 translates the distance between the two idlers. The speed at which the sagger 1 rolls and advances can be controlled by controlling the lifting frequency of each lifting wheel.
In the above process, each lifting wheel (including the first lifting wheel 21, the second lifting wheel 22, the third lifting wheel 23, etc.) is driven by the rotation driving mechanism to maintain a rotating state at a certain speed, and when the sagger 1 is in contact with the supporting wheel, the sagger 1 obtains a self-rotation driving force under the action of friction force. For example, when the first and second lifting wheels 21 and 22 keep rotating counterclockwise, the sagger 1 in the first state will obtain a force of rotating clockwise. Different from embodiment 1, because the lifting wheels are also used for driving the sagger 1 to rotate, the rotating speeds of two adjacent lifting wheels need to be kept consistent, which is easy to realize for the current speed regulating system, and is not described herein again. If the sintering process requires that the rotation speed of the sagger 1 in the fifth state is different from that in the first state, it can be realized by adjusting the rotation speeds of the second and third elevating wheels 22 and 23 at the same time.
It should be understood that during the work process, each lifting wheel can rotate during the work of itself, and all the lifting wheels can also keep rotating all the time, so that the technical effect of the embodiment of pushing the sagger 1 to roll and advance can be achieved, and the technical effect is within the protection scope of the embodiment of the invention.
In this embodiment, the number of the lifting wheels is three. In other embodiments, the number of lift wheels should be adjusted according to actual process requirements.
It should be appreciated that in this embodiment, the lift wheels are ceramic cylinders. The ceramic material is high temperature resistant, can exist stably at high temperature, and is not easy to expand with heat and contract with cold. The ceramic material adopted in the high-temperature sintering kiln can effectively improve the stability and the service life of the whole mechanism. In other embodiments, the lifting wheels and the riding wheels may be partially made of ceramic, for example, the inner surface of the lifting wheels and the riding wheels are made of ceramic, and the outer surface of the lifting wheels and the riding wheels are made of other materials. The technical effect of the lifting wheel to realize the propulsion of the sagger 1 through cooperation is all within the protection scope of the embodiment.
Example 3
This embodiment provides the same tumble progressing method of the rolling-sagger tumble progressing mechanism as embodiment 2 except for the following description. In the third state, the second lifting wheel 22 is lifted while the third lifting wheel 23 is lowered, and the sagger 1 rolls in the advancing direction 110 by the combined action of gravity and the lifting force of the second lifting wheel 22, while the sagger 1, the second lifting wheel 22 and the third lifting wheel 23 are kept in contact with each other. When the third lifting/lowering wheel 23 and the second lifting/lowering wheel 22 are at the same height, the fourth state shown in fig. 9 is achieved. The third lifting/lowering wheel 23 is not further lowered, and is turned to be raised in synchronization with the second lifting/lowering wheel 22, and finally reaches the fifth state.
Example 4
This embodiment provides the same rolling-stage method of the rolling-stage-sagger rolling-stage mechanism as that of embodiment 2, except for the following description. In the present embodiment, the third state shown in fig. 8 is an "initial state", and thereafter, the third lifting/lowering wheel 23 is lowered while the second lifting/lowering wheel 22 is raised, and the sagger 1 rolls in the advancing direction 110 under the combined action of gravity and the thrust of the raising of the second lifting/lowering wheel 22, and continues to be tangent to the second lifting/lowering wheel 22 and the third lifting/lowering wheel 23; when the third lifting wheel 23 descends to the lowest point and the second lifting wheel 22 ascends to the same level as the first lifting wheel 11, the sixth state shown in fig. 11 is reached, and at this time, the sagger 1 is tangent to and supported by the second lifting wheel 22, the third lifting wheel 23 and the fourth lifting wheel 24, and is in a stable state. In this case, the sagger 1 is translated in the advancing direction 100, compared with the "first state" shown in fig. 8.
In conclusion, the rolling sagger rolling and advancing mechanism and the rolling and advancing method of the invention cancel the push plate translation and advancing mechanism in the existing push plate tunnel kiln, greatly shorten the overall length of the kiln, enrich the application scenes of the kiln, and meet the requirements of laboratories on small material sintering tests. The sagger translation and rotation driving mechanisms are integrated in a novel mode, and the sagger advancing speed and the sagger rotation speed are independently regulated and controlled through different integration modes of the supporting wheels and the lifting wheels. The driving structure positioned in the kiln is stable and reliable, and the problems of meshing failure of gears, adhesion of transmission parts and the like are avoided.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A rolling sagger rolling progressive mechanism is characterized by comprising a plurality of cylindrical lifting wheels which are arranged at intervals, wherein the axes of the plurality of lifting wheels are mutually parallel to the axis of a sagger with a cylindrical outer contour in a three-dimensional space, the distance between the axes of two adjacent lifting wheels is smaller than the diameter of the cross section of the outer contour of the sagger, and each lifting wheel is connected with an independent lifting mechanism so that each lifting wheel can independently lift in the vertical direction; the rolling sagger rolling and advancing mechanism further comprises a plurality of supporting wheels of which the outer contours are cylinders, the supporting wheels and the lifting wheels are alternately arranged at intervals, the axes of the supporting wheels are parallel to the axes of the lifting wheels in a three-dimensional space, the heights of the axes of the supporting wheels are lower than the heights of the axes of the lifting wheels at the positions where the lifting wheels rise to the highest position and are higher than the heights of the axes of the lifting wheels at the positions where the lifting wheels fall to the lowest position, and the distance between the axes of the two adjacent supporting wheels is smaller than the diameter of the cross section of the outer contours of the saggers.
2. The rolling sagger tumbling advancement mechanism of claim 1, wherein at least one of said joists is connected to a rotary drive mechanism to obtain power to drive rotation of said sagger; the material of at least part of the supporting wheels and the lifting wheels is selected from ceramics.
3. The rolling sagger tumbling advancement mechanism of claim 1, wherein the distance between the axes of two adjacent lift wheels is less than the radius of the cross section of the outer contour of the sagger.
4. The rolling sagger tumbling advancement mechanism of claim 3, wherein at least one of said lift wheels is further coupled to a rotational drive mechanism to obtain power to drive rotation of said sagger; at least part of the modules of the lifting wheel are made of ceramics.
5. A rolling progression method using the rolling-sagger rolling progression mechanism according to claim 1 or 2, wherein the lifting wheels comprise a first lifting wheel, a second lifting wheel and a third lifting wheel which are arranged in sequence in the advancing direction, the riding wheels comprise a first riding wheel and a second riding wheel which are arranged in sequence in the advancing direction, and the rolling progression method comprises the following steps: in an initial state, the sagger, the first lifting wheel, the first supporting wheel and the second lifting wheel are tangent and supported, and are in a stable state; subsequently, the second lifting wheel descends and comes out of contact with the sagger, which rolls in the advancing direction, is tangent to the second lifting wheel and regains support; the second lifting wheel further descends, the highest point of the second lifting wheel is lower than the axial height of the first riding wheel, the sagger continuously rolls towards the advancing direction by means of inertia so as to be separated from contact with the first riding wheel, and passes through the highest point of the second lifting wheel to be tangent to the second riding wheel which is adjacent to the second riding wheel in the advancing direction, so that support is obtained; the second lifting wheel rises, the sagger keeps tangent with the second lifting wheel and the second riding wheel, and moves towards the advancing direction under the action of the rising thrust of the second lifting wheel and reaches a stable state.
6. A tumbling advance method applying the rolling-sagger tumbling advance mechanism as claimed in claim 3 or 4, the lifting wheels including a first lifting wheel, a second lifting wheel and a third lifting wheel which are sequentially arranged in an advance direction, comprising the steps of: in an initial state, the sagger, the first lifting wheel and the second lifting wheel are tangent and supported, and are in a stable state; subsequently, the second lifting wheel descends, and the sagger rolls towards the advancing direction under the action of gravity and continues to be tangent to the first lifting wheel and the second lifting wheel; when the second lifting and lowering is carried out until the sagger is tangent to the third lifting and lowering wheel and supported, the second lifting and lowering wheel does not descend any more; thereafter, the third lifting wheel descends and comes out of contact with the sagger, the sagger rolls in the advancing direction and is tangent to the third lifting wheel again, and when the third lifting wheel descends to be at the same height on the axis as the second lifting wheel, the second lifting wheel and the third lifting wheel synchronously ascend to reach the same axis height as the initial state.
7. A tumbling advance method applying the rolling-sagger tumbling advance mechanism as claimed in claim 3 or 4, the lifting wheels including a first lifting wheel, a second lifting wheel and a third lifting wheel which are sequentially arranged in an advance direction, comprising the steps of: in an initial state, the sagger, the first lifting wheel and the second lifting wheel are tangent and supported, and the sagger, the first lifting wheel and the second lifting wheel are in a stable state; subsequently, the second lifting wheel descends, and the sagger rolls towards the advancing direction and continuously keeps tangent with the first lifting wheel and the second lifting wheel; when the second lifting wheel descends until the sagger is tangent to the third lifting wheel adjacent to the sagger in the advancing direction and is supported, the second lifting wheel does not descend any more; after that, the third lifting wheel descends and the second lifting wheel ascends simultaneously, the sagger keeps tangent with the second lifting wheel and the third lifting wheel and rolls towards the advancing direction, when the third lifting wheel descends and the second lifting wheel ascends to the same height on the axis, the second lifting wheel and the third lifting wheel synchronously ascend to the same axis height as the initial state.
8. A tumbling advancement method using the rolling-sagger tumbling advancement mechanism according to claim 3 or 4, wherein the lifting wheels include a first lifting wheel, a second lifting wheel, a third lifting wheel and a fourth lifting wheel which are sequentially arranged in an advancement direction, and the method comprises the steps of: in an initial state, the first lifting wheel and the third lifting wheel are equal in height in the horizontal direction and higher than the second lifting wheel, and the sagger, the first lifting wheel, the second lifting wheel and the third lifting wheel are tangent and supported and are in a stable state; subsequently, the third lifting wheel descends and the second lifting wheel ascends, the sagger rolls towards the advancing direction and continuously keeps tangent with the second lifting wheel and the third lifting wheel; when the third lifting wheel descends to the lowest point and the second lifting wheel ascends to the same level as the first lifting wheel, the sagger is tangent to and supported by the second lifting wheel, the third lifting wheel and the fourth lifting wheel and is in a stable state.
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