Tunnel kiln circulating track skip car

Abstract

The utility model belongs to the field of alumina ceramic material production, and relates to a tunnel kiln circulating track skip car which comprises a tunnel kiln, a kiln car, a kiln car track, a ferry groove, a ferry car and a ferry track, and the ferry car comprises a ferry car frame, a ferry walking mechanism, a kiln car push-pull mechanism and a power motor; the ferry frame is provided with a kiln car bearing guide rail capable of being in butt joint with the kiln car track in a flush mode. The kiln car push-and-pull mechanism comprises a fixed guide groove and a push-and-pull guide rod telescopically sleeved with the fixed guide groove, the front end and the rear end of the push-and-pull guide rod are provided with a forward hook used for pulling the kiln car and a reverse hook used for pushing the kiln car respectively, and the rear portion of the push-and-pull guide rod is provided with a screw telescopic assembly used for driving the push-and-pull guide rod to do telescopic motion; the driving wheel set and the screw telescopic assembly are in switchable transmission connection with the power motor through the walking transmission system and the push-pull transmission system correspondingly. According to the ferry vehicle, the traveling driving of the ferry vehicle and the driving of three actions of pushing and pulling the kiln vehicle into and out of the tunnel kiln can be realized only by using one power motor.

Description

Technical Field

[0001] The utility model belongs to the technical field of alumina ceramic material production, and in particular relates to a tunnel kiln circulating track feed car. Background Art

[0002] The stability of alumina crystal structure is closely related to its crystal structure form. α-alumina (commonly known as corundum) is the most stable alumina crystal structure form and is the main component of alumina ceramic materials. α-alumina materials are generally made by calcining alumina raw materials at high temperature in a gas-fired tunnel kiln. When alumina ceramic materials enter the tunnel kiln for calcination, the alumina raw materials need to be loaded into special saggers, and then the saggers are arranged on the kiln car before entering the tunnel kiln for calcination. In addition, in order to improve the calcination production efficiency of the tunnel kiln, multiple kiln cars are usually used for alternating operation.

[0003] Kiln cars typically travel along specific tracks. The limited number of kiln cars is recycled, and tunnel kilns typically have more than one. Therefore, a circulating track feed car (also known as a tunnel kiln shuttle or kiln car shuttle, hereinafter referred to as a shuttle car) is required to facilitate the circulation of kiln cars between tunnel kilns. The shuttle car generally performs three main tasks: first, it pulls the kiln car out of the tunnel kiln, unloads the fired alumina saggers from the kiln car, and reloads the kiln car with the saggers containing the unfired alumina; second, it transports the kiln car to the corresponding tunnel kiln entrance; and third, it pushes the kiln car into the tunnel kiln to continue the next round of calcination. Existing shuttle cars require three power mechanisms to accomplish these three actions: a travel motor drives the shuttle car, a pull-out motor or hydraulic cylinder drives the kiln car out, and a push-in hydraulic cylinder drives the kiln car in. The power system is quite complex, with a large number of power devices, which naturally leads to a high failure rate, and the equipment investment and maintenance costs are also relatively high. Therefore, it is necessary to transform and upgrade the existing shuttle buses. Utility Model Content

[0004] In view of the above situation, the utility model provides a tunnel kiln circulating rail feed car, which performs corresponding technical upgrades and modifications on the existing shuttle car.

[0005] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0006] A tunnel kiln circulating rail material car, comprising a tunnel kiln, a kiln car, a kiln car track, a ferry trough, a ferry car and a ferry track, wherein the ferry trough is arranged vertically in a T shape below the kiln mouth of the tunnel kiln, the kiln car track is laid on the left and right sides of the ground in the tunnel kiln along the front-to-back direction, the kiln car is movably arranged above the kiln car track, the ferry track is laid on the front and rear sides of the bottom of the ferry trough along the left-right direction, and the ferry car is movably arranged above the ferry track.

[0007] The ferry car includes a ferry car frame and a ferry walking mechanism, a kiln car push-pull mechanism and a power motor installed on the ferry car frame; kiln car receiving guide rails that can be flush with the kiln car track are fixedly arranged on the left and right sides above the ferry car frame along the front and rear directions.

[0008] The kiln car push-pull mechanism includes a fixed guide groove fixed in the middle position above the ferry frame in the front-to-back direction, and a push-pull guide rod telescopically sleeved inside the fixed guide groove. The front and rear ends of the push-pull guide rod are respectively provided with a forward hook for pulling the kiln car and a reverse hook for pushing the kiln car. The rear part of the push-pull guide rod is provided with a screw telescopic assembly for driving its telescopic movement.

[0009] The ferry travel mechanism includes a driven wheel group and a driving wheel group respectively arranged on the left and right sides below the ferry frame; the driving wheel group and the screw telescopic assembly are respectively connected to the power motor in a switchable transmission manner through a travel transmission system and a push-pull transmission system.

[0010] The driving wheel group includes two driving rail wheels which are rollingly arranged above the ferry track, and a driving wheel shaft which is fixedly connected between the two driving rail wheels. The driving wheel shaft is rotatably connected to the bottom of the ferry frame.

[0011] The travel transmission system includes a driven sprocket fixedly mounted on the driving wheel shaft, a travel transmission shaft rotatably connected to the bottom of the ferry frame, a driving sprocket fixedly mounted on the travel transmission shaft, a transmission chain connected between the driving sprocket and the driven sprocket, and a driven gear fixedly mounted on the travel transmission shaft.

[0012] The screw telescopic assembly includes a rotating screw rotatably arranged above the ferry frame, and a telescopic nut fixedly welded to the rear end of the push-pull guide rod. The rotating screw and the telescopic nut are movably threadedly connected.

[0013] The push-pull drive system includes an intermediate drive shaft and a push-pull drive shaft that are rotatably connected below the ferry vehicle frame. A second driving sprocket is fixedly sleeved on the intermediate drive shaft. A second driven sprocket and a first transmission sprocket are coaxially and fixedly sleeved on the push-pull drive shaft. A second transmission sprocket is fixedly sleeved on the rear end of the rotary screw. A second drive chain is connected between the second driving sprocket and the second driven sprocket. A direction-changing chain is connected between the first transmission sprocket and the second transmission sprocket. A second driven gear is also fixedly sleeved on the intermediate drive shaft.

[0014] The ferry vehicle frame is of a rectangular frame structure. The push-pull drive shaft is located directly below the rotary screw. The direction-changing chain vertically passes through the ferry vehicle frame and is connected between the first transmission sprocket and the second transmission sprocket.

[0015] Both the first driven gear and the second driven gear are switchably and drivably connected to the power motor through a clutch shaft. A first driving gear and a second driving gear that can alternately and correspondingly mesh with the first driven gear and the second driven gear respectively are coaxially and fixedly sleeved on the clutch shaft. That is, the two sets of driving and driven gears cannot mesh simultaneously. The rear end of the clutch shaft is slidably and pluggably connected to the output shaft of the power motor through an axial sliding bushing. The front end of the clutch shaft is rotatably connected to an axial pulling and drawing bushing through a roller bearing. The front end of the axial pulling and drawing bushing is connected to an electric telescopic rod. Both the power motor and the electric telescopic rod are fixedly connected below the ferry vehicle frame. The power motor uses a servo motor, which can achieve precise position control of speed start and stop and control of the forward and reverse rotation directions of the motor. When the electric telescopic rod extends, it pushes the first driving gear to mesh with the first driven gear correspondingly. At this time, the power motor can drive the ferry vehicle frame to move left and right. When the electric telescopic rod retracts, it pulls the second driving gear to mesh with the second driven gear correspondingly. Combining with the forward and reverse rotation control of the power motor, at this time, the power motor can drive the push-pull guide rod to extend and retract forward and backward, thereby realizing pushing the kiln car into the tunnel kiln or pulling it out of the tunnel kiln.

[0016] The push-pull guide rod is made of an H-shaped I-beam. On the outer walls of both sides of the I-beam, a U-shaped channel steel one is fixedly welded respectively. The fixed guide groove is composed of a pair of U-shaped channel steels two that are symmetrically arranged left and right. The outer sides of the two channel steels two are fixedly installed above the ferry vehicle frame through support legs. The two channel steels one are slidably and cooperatively sleeved inside the two channel steels two.

[0017] The forward hook and the reverse hook have the same structure but opposite directions. Both include a right-angled triangular hook plate that can be flipped unidirectionally and automatically reset. One of its right-angled sides is in active contact with the upper surface of the H-shaped push-pull guide rod. Its hypotenuse faces the end of the push-pull guide rod. A chamfer is provided at the bottom right angle. To prevent the right-angled triangular hook plate from flipping inward, its lower part is rotatably pinned to the two side edges of the push-pull guide rod through a pin shaft. A return torsion spring is cooperatively sleeved on the pin shaft for realizing the self-reset of the right-angled triangular hook plate.

[0018] The present invention also includes other components that enable it to be used normally, which are all conventional means in the field. In addition, devices or components not limited in the present invention, such as: tunnel kiln, aqueduct, kiln car, track, rail wheel, rail wheel shaft, servo motor, electric telescopic rod and gear transmission structure and chain transmission structure, etc., all adopt the existing technology in the field.

[0019] The beneficial effects of the utility model are as follows:

[0020] By upgrading and renovating the existing tunnel kiln shuttle bus, especially optimizing and improving the power system of the shuttle bus, a single power motor can be used to drive the shuttle bus and push and pull the kiln car in and out of the tunnel kiln. This reduces the number of power equipment used, lowers the equipment failure rate of the tunnel kiln circulating rail material car, and saves equipment manufacturing and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of the tunnel kiln circulating rail feed car in the embodiment.

[0022] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of part A in the middle.

[0023] Figure 3 for Figure 1 Schematic diagram of the front view structure along the BB direction.

[0024] Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure along the CC direction. DETAILED DESCRIPTION

[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments.

[0026] It should be noted that the terms "up", "down", "front", "back", "left", "right", "inside", "outside", etc. indicating directions or positional relationships are based on the accompanying drawings and are only for the convenience of description.

[0027] Example

[0028] like Figure 1-2As shown, a tunnel kiln circulating rail material car includes a tunnel kiln 1, a kiln car 2, a kiln car track 3, a ferry trough 4, a ferry car and a ferry track 5. The ferry trough is T-shaped and vertically arranged below the kiln mouth ground of the tunnel kiln. The ferry trough is a groove structure located as a whole below the kiln mouth ground of the tunnel kiln. The upper surface of the ferry car is roughly on the same horizontal plane as the kiln mouth ground. The kiln car track is laid on the left and right sides of the ground in the tunnel kiln along the front-to-back direction and is used for the kiln car to move forward and backward in the tunnel kiln. The kiln car is movably arranged above the kiln car track. The ferry track is laid on the front and rear sides of the bottom of the ferry trough along the left-right direction. The ferry car is movably arranged above the ferry track.

[0029] The shuttle bus includes a ferry frame 6, a ferry travel mechanism, a kiln car push-pull mechanism, and a power motor 7 mounted thereon. Kiln car receiving rails 8 are fixedly mounted on the upper and left sides of the ferry frame in the front-to-back direction, allowing them to mate flush with the kiln car tracks. The kiln car tracks, ferry rails, and kiln car receiving rails all consist of two parallel rails, using a conventional rail arrangement in the prior art. The specific structure will not be detailed here.

[0030] The kiln car push-pull mechanism includes a fixed guide groove 9 fixed in the middle position above the ferry frame in the front-to-back direction, and a push-pull guide rod 10 telescopically sleeved inside the fixed guide groove. The front and rear ends of the push-pull guide rod are respectively provided with a forward hook 11 for pulling the kiln car and a reverse hook 12 for pushing the kiln car. The rear part of the push-pull guide rod is provided with a screw telescopic assembly for driving its telescopic movement.

[0031] When pulling a kiln car out of the tunnel kiln, the push-pull guide rod extends forward. Any forward hook on its front end that encounters the kiln car's rail axle during its extension can flip over, lower its head, and then reset itself, until it extends beyond the kiln car's front rail axle. At this point, the push-pull guide rod has reached its maximum extension limit. The push-pull guide rod is then pulled back. The forward hook now encounters the kiln car's rail axle but cannot flip over, so it can only hook onto the kiln car's rail axle, pulling the entire kiln car out of the tunnel kiln. Conversely, when pushing a kiln car into the tunnel kiln, the push-pull guide rod extends and, under the action of the reverse hook, pushes the kiln car into the tunnel kiln. It's important to note that the distance between the forward and reverse hooks at the front and rear ends of the push-pull guide rod should be slightly smaller than the distance between the front and rear rail axles at the bottom of the kiln car. This ensures that only the forward hook is active when pulling the kiln car, while the reverse hook, located inside the rail axle, is inactive. Conversely, when pushing the kiln car, only the reverse hook is active, with the forward and reverse hooks located inside the rail axle and inactive.

[0032] The ferry travel mechanism includes a driven wheel group 13 and a driving wheel group respectively arranged on the left and right sides below the ferry frame; the driving wheel group and the screw telescopic assembly are respectively connected to the power motor in a switchable transmission manner through a travel transmission system and a push-pull transmission system.

[0033] The driving wheel group includes two driving rail wheels 14 that are rollingly arranged above the ferry track, and a driving wheel shaft 15 that is fixedly connected between the two driving rail wheels. The driving wheel shaft is rotatably connected to the bottom of the ferry frame.

[0034] The travel transmission system includes a driven sprocket 16 fixedly mounted on the driving wheel shaft, a travel transmission shaft 17 rotatably connected to the bottom of the ferry frame, a driving sprocket 18 fixedly mounted on the travel transmission shaft, a transmission chain 19 connected between the driving sprocket 1 and the driven sprocket 1, and a driven gear 20 fixedly mounted on the travel transmission shaft.

[0035] The screw telescopic assembly comprises a rotating screw 21 rotatably mounted above the ferry frame, and a telescopic nut 22 fixedly welded to the rear end of the push-pull guide rod. The rotating screw and the telescopic nut are movably threadedly connected. Rotating the rotating screw drives the telescopic nut to move forward and backward, thereby driving the push-pull guide rod to telescope forward and backward.

[0036] The push-pull transmission system includes an intermediate transmission shaft 23 and a push-pull transmission shaft 24 rotatably connected to the bottom of the ferry frame. A fixed sleeve on the intermediate transmission shaft is provided with a driving sprocket 25, a coaxial fixed sleeve on the push-pull transmission shaft is provided with a driven sprocket 26 and a transmission sprocket 1 27, a rear end fixed sleeve of the rotating screw is provided with a transmission sprocket 28, a transmission chain 29 is connected between the driving sprocket 2 and the driven sprocket 2, a changing chain 30 is connected between the transmission sprocket 1 and the transmission sprocket 2, and a driven gear 2 31 is also fixed on the intermediate transmission shaft.

[0037] The ferry frame is a rectangular frame structure welded from square steel. The push-pull transmission shaft is located directly below the rotating screw. The direction-changing chain vertically passes through the ferry frame and is connected between transmission sprocket 1 and transmission sprocket 2.

[0038] The driven gear 1 and the driven gear 2 are both switchably connected to the power motor through the clutch shaft 32. The coaxial fixed sleeve on the clutch shaft is provided with a driving gear 1 33 and a driving gear 2 34 which can respectively mesh with the driven gear 1 and the driven gear 2 alternately, that is, the two sets of master and driven gears cannot mesh at the same time. The rear end of the clutch shaft is pluggable and slidably connected to the output shaft of the power motor through the axial sliding sleeve 35. A flat key and a keyway are provided between the motor output shaft and the axial sliding sleeve 35 to ensure that only axial sliding and circumferential rotation can be achieved between the two. The front end of the clutch shaft is rotatably connected to the axial drawing sleeve 37 through a roller bearing 36. The front end of the axial drawing sleeve is connected to an electric telescopic rod 38. The power motor and the electric telescopic rod are both fixedly connected to the bottom of the ferry frame.

[0039] When the electric telescopic rod pushes the clutch shaft to extend, the driving gear one can be engaged with the driven gear one, and the driving wheel shaft can be driven through the traveling transmission shaft, so as to realize the left and right walking movement of the ferry vehicle frame; when the electric telescopic rod pulls the clutch shaft to retract, the driving gear two can be engaged with the driven gear two, and by the rotation of the intermediate transmission shaft and the push-pull transmission shaft, the rotary screw can be driven to rotate, and the push-pull guide rod can be driven to move back and forth telescopically, so as to realize the pushing and pulling of the kiln car into and out of the tunnel kiln; because when the ferry vehicle frame moves left and right, the action of pushing and pulling the kiln car is not allowed, and correspondingly, when pushing and pulling the kiln car, it is also required that the ferry vehicle frame is not allowed to move left and right, so it is required that the two sets of driving and driven gears cannot be engaged simultaneously to avoid action conflicts and accidents.

[0040] The power motor adopts a servo motor, which can realize the precise position control of the speed start and stop and the forward and reverse direction control of the motor. When the electric telescopic rod extends, it pushes the driving gear one to be correspondingly engaged with the driven gear one. At this time, the power motor can drive the ferry vehicle frame to move left and right; when the electric telescopic rod retracts, it pulls the driving gear two to be correspondingly engaged with the driven gear two. In combination with the forward and reverse control of the power motor, at this time, the power motor can drive the push-pull guide rod to move back and forth telescopically, so as to realize pushing the kiln car into the tunnel kiln or pulling it out of the tunnel kiln.

[0041] As Figure 3-4 As shown, the push-pull guide rod is made of an H-shaped I-beam 39. On the outer walls of both sides of the I-beam, a U-shaped channel steel one 40 is fixedly welded respectively. The fixed guide groove is composed of a pair of U-shaped channel steels two 41 symmetrically arranged left and right. The outer sides of the two channel steels two are fixedly erected above the ferry vehicle frame through the support legs 42. The two channel steels one are slidably sleeved inside the two channel steels two.

[0042] The forward hook and the reverse hook have the same structure but opposite directions. Both include a right-angled triangular hook plate 43 that can be flipped unidirectionally and automatically reset. One of its right-angled sides is in active contact with the upper surface of the H-shaped push-pull guide rod, its hypotenuse faces the end of the push-pull guide rod, and a circular arc chamfer 44 is provided at the bottom right angle, which will not prevent the right-angled triangular hook plate from flipping inward. Its lower part is rotatably pinned to the two sides of the push-pull guide rod through a pin shaft 45, and a return torsion spring 46 is sleeved on the pin shaft for realizing the self-resetting and standing up of the right-angled triangular hook plate after it flips over the kiln car rail wheel shaft.

[0043] The technical solution of the present invention is not limited to the limitations of the above specific embodiments. Without departing from the scope and spirit of the described embodiments, many modifications and changes are obvious to those of ordinary skill in the art. Any technical deformation made within the spirit and principle of the present invention falls within the protection scope of the present invention.

Claims

1. A tunnel kiln circulating rail feed vehicle, comprising a tunnel kiln, a kiln car, a kiln car track, a ferry trough, a ferry car, and the ferry track, wherein the ferry trough is arranged vertically in a T-shape below the kiln opening of the tunnel kiln, the kiln car track is laid along the front-to-back direction on the left and right sides of the ground inside the tunnel kiln, the kiln car is movably arranged above the kiln car track, the ferry track is laid along the left-to-right direction on the front and rear sides of the bottom of the ferry trough, and the ferry car is movably arranged above the ferry track, characterized in that: The ferry car includes a ferry frame and a ferry walking mechanism, a kiln car push-pull mechanism and a power motor installed on the ferry frame; kiln car receiving guide rails that can be flush with the kiln car track are fixedly arranged on the left and right sides above the ferry frame in the front-to-back direction; the kiln car push-pull mechanism includes a fixed guide groove fixed in the middle position above the ferry frame in the front-to-back direction, and a push-pull guide rod telescopically sleeved inside the fixed guide groove, the front and rear ends of the push-pull guide rod are respectively provided with a forward hook for pulling the kiln car and a reverse hook for pushing the kiln car, and the rear part of the push-pull guide rod is provided with a screw telescopic assembly for driving its telescopic movement; the ferry walking mechanism includes a driven wheel group and a driving wheel group respectively arranged on the left and right sides below the ferry frame; the driving wheel group and the screw telescopic assembly are respectively connected to the power motor in a switchable transmission manner through a walking transmission system and a push-pull transmission system.

2. The tunnel kiln circulating track feed car according to claim 1, characterized in that: The driving wheel group includes two driving rail wheels which are rollingly arranged above the ferry track, and a driving wheel shaft which is fixedly connected between the two driving rail wheels. The driving wheel shaft is rotatably connected to the bottom of the ferry frame.

3. The tunnel kiln circulating track feed car according to claim 2, characterized in that: The travel transmission system includes a driven sprocket fixedly mounted on the driving wheel shaft, a travel transmission shaft rotatably connected to the bottom of the ferry frame, a driving sprocket fixedly mounted on the travel transmission shaft, a transmission chain connected between the driving sprocket and the driven sprocket, and a driven gear fixedly mounted on the travel transmission shaft.

4. The tunnel kiln circulating track feed car according to claim 3, characterized in that: The screw telescopic assembly includes a rotating screw rotatably arranged above the ferry frame, and a telescopic nut fixedly welded to the rear end of the push-pull guide rod. The rotating screw and the telescopic nut are movably threadedly connected.

5. The tunnel kiln circulating track feed vehicle according to claim 4, characterized in that: The push-pull transmission system includes an intermediate transmission shaft and a push-pull transmission shaft rotatably connected to the bottom of the ferry frame. A fixed sleeve on the intermediate transmission shaft is provided with a driving sprocket 2, a coaxial fixed sleeve on the push-pull transmission shaft is provided with a driven sprocket 2 and a transmission sprocket 1, a rear end fixed sleeve of the rotating screw is provided with a transmission sprocket 2, a transmission chain 2 is connected between the driving sprocket 2 and the driven sprocket 2, a changing chain is connected between the transmission sprocket 1 and the transmission sprocket 2, and a driven gear 2 is also fixedly provided on the intermediate transmission shaft.

6. The tunnel kiln circulating track feed vehicle according to claim 5, characterized in that: The ferry frame is a rectangular frame structure, the push-pull transmission shaft is located directly below the rotating screw, and the direction-changing chain vertically passes through the ferry frame and is connected between the transmission sprocket 1 and the transmission sprocket 2.

7. The tunnel kiln circulating track feed vehicle according to claim 6, characterized in that: The driven gear 1 and the driven gear 2 are both switchably connected to the power motor through the clutch shaft. The coaxial fixed sleeve on the clutch shaft is provided with a driving gear 1 and a driving gear 2 which can alternately mesh with the driven gear 1 and the driven gear 2 respectively. The rear end of the clutch shaft is pluggable and slidably connected to the output shaft of the power motor through an axial sliding sleeve. The front end of the clutch shaft is rotatably connected to an axial pulling sleeve through a roller bearing. The front end of the axial pulling sleeve is connected to an electric telescopic rod. The power motor and the electric telescopic rod are both fixedly connected to the bottom of the ferry frame.

8. The tunnel kiln circulating track feed vehicle according to claim 7, characterized in that: The push-pull guide rod is made of an H-shaped工字钢. On the outer walls of both sides of the工字钢, a U-shaped channel steel 1 is fixedly welded respectively. The fixed guide groove is composed of a pair of U-shaped channel steels 2 arranged symmetrically left and right. The outer sides of the two channel steels 2 are fixedly installed above the ferry vehicle frame through support legs. The two channel steels 1 are slidably sleeved inside the two channel steels 2.

9. The tunnel kiln circulating track feed vehicle according to claim 8, characterized in that: The forward hook and the reverse hook have the same structure but opposite directions. Both include a right-angled triangular hook plate that can be flipped unidirectionally and automatically reset. One of its right-angled sides is in movable contact with the upper surface of the H-shaped push-pull guide rod. Its hypotenuse faces the end of the push-pull guide rod. A chamfer is provided at the bottom right angle. Its lower part is rotatably pin-connected to the two sides of the push-pull guide rod through a pin shaft. A return torsion spring is sleeved on the pin shaft.

Images