Feeding and discharging device and annealing furnace adopting same

Abstract

The invention provides a feeding and discharging device and an annealing furnace comprising the same. The feeding and discharging device comprises a rack, a guide rail and a skip car, the rack and the guide rail are both embedded underground, installation space is saved, and maintenance is convenient. The skip car is driven to operate in a gear and rack meshing mode, the slipping risk is avoided, the transmission efficiency is high, and synchronism is good. The guide wheels are arranged on the two sides of the skip car and can abut against the top walls of the concave parts of the guide rails in a rolling mode, transverse deviation and vertical vibration of the skip car can be effectively prevented, and the precision and stability of the moving track are guaranteed. The guide wheel can be adjusted through an adjustable mechanism to adapt to guide rails of different specifications, the structure is simple, operation is convenient, and the adjusting precision is high. The device is stable in operation, excellent in vibration resistance, long in service life and suitable for material conveying equipment such as an annealing furnace.

Description

Technical Field

[0001] The present application relates to the technical field of annealing furnaces, and in particular to a material loading and unloading device and an annealing furnace using the material loading and unloading device. Background Art

[0002] In industrial production, annealing furnaces and other equipment often need to transport materials through feeding and discharging devices. Existing feeding and discharging devices usually use a tractor to drive the material cart to move along the guide rail. The tractor is driven by a driving mechanism to run straight along the guide rail. At the same time, the tractor can drive the material cart to run straight along the guide rail. However, the existing technology has the following shortcomings:

[0003] 1. Most existing tractors use friction drive or chain traction, which has the risk of slipping, low transmission efficiency, and it is difficult to ensure the synchronization of the tractor operation;

[0004] 2. Most existing tractors are supported on the top surface of the guide rail only by the running wheels, lacking an effective lateral guide structure, which causes the tractor to easily deviate laterally and vibrate up and down during operation, affecting the accuracy of the running track;

[0005] 3. The tractor is easily affected by vibration when running at high speed, which leads to unstable material transportation process and even the risk of material tipping or falling;

[0006] 4. Due to the lack of an effective anti-vibration structure, the tractor may vibrate in the vertical direction during operation, affecting the smoothness of operation and reducing the service life of the equipment.

[0007] Therefore, the prior art urgently needs to provide a feeding and discharging device with high transmission efficiency, stable operation, excellent vibration resistance and long service life to improve the above-mentioned shortcomings.

[0008] Application Contents

[0009] The object of the present invention is to overcome the deficiencies of the prior art and to provide an annealing furnace using a feeding and discharging device having high transmission efficiency, stable operation, good vibration resistance and long service life.

[0010] The feeding and discharging device provided in the present application comprises a rack, two guide rails, a tractor and a material trolley;

[0011] The rack extends in a straight line;

[0012] The two guide rails are respectively located on both sides of the rack, and the two guide rails extend in a straight line and are parallel to the rack. The side walls of the two guide rails are provided with a recess extending along the length direction of the guide rails;

[0013] Both sides of the tractor are provided with running wheels and guide wheels. The running wheels on both sides of the tractor can respectively roll against the top surfaces of the two guide rails, and the guide wheels on both sides of the tractor can respectively roll against the top walls of the concave portions of the two guide rails.

[0014] The tractor is provided with a driving gear and a driving mechanism for driving the driving gear to rotate. The driving gear is meshed with the rack, so that the tractor is driven forward or backward along the rack by the forward and reverse rotation of the driving gear.

[0015] The material cart is movably arranged on two guide rails, and the tractor is used to drive the material cart forward or backward along the guide rails.

[0016] Preferably, the guide wheels are adjustably arranged on both sides of the tractor, and the guide wheels can be adjusted in the up and down directions so that the guide wheels are close to or away from the top wall of the recess.

[0017] Preferably, a mounting seat is provided on both sides of the tractor, a supporting portion is fixedly provided on the mounting seat, a guide hole is provided through the mounting seat from top to bottom, a movable plate is movably inserted on the guide hole, a connecting portion is fixedly provided on the upper end of the movable plate, the connecting portion is located above the supporting portion, a threaded through hole is provided on the connecting portion, a bolt passes downwardly through and is screwed into the threaded through hole, the lower end of the bolt abuts against the upper surface of the supporting portion, and the guide wheel is provided at the lower part of the movable plate.

[0018] Preferably, a groove is provided on the upper surface of the support portion, and the lower end of the bolt abuts against the bottom surface of the groove.

[0019] Preferably, the driving mechanism includes a driving motor, a first transmission shaft and a second transmission shaft, the driving motor is fixedly arranged on the upper side of the tractor, the first transmission shaft is rotatably arranged on the upper side of the tractor, a first transmission gear is fixedly sleeved on the first transmission shaft, the driving motor is used to drive the first transmission shaft to rotate, the second transmission shaft is rotatably arranged on the lower side of the tractor, a second transmission gear is fixedly sleeved on the second transmission shaft, the first transmission gear and the second transmission gear are connected by a chain so as to rotate synchronously, a through hole for the transmission belt to pass through is provided on the tractor, and the driving gear is fixedly sleeved on the second transmission shaft.

[0020] Preferably, the rack and the two guide rails are embedded under the ground.

[0021] The annealing furnace provided in the present application comprises the above-mentioned feeding and discharging device.

[0022] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0023] The feeding and discharging device of the present invention drives the tractor to move in a straight line direction by means of gear and rack meshing transmission, and guide wheel structures are arranged on both sides of the tractor to realize dual guidance in the lateral and vertical directions. The advantages thereof include: 1. High transmission efficiency. The meshing transmission mode of the gear and rack avoids the slipping problem of the friction driving mode, and the power transmission is more direct, reducing energy loss; 2. The meshing transmission ensures the synchronization of the tractor operation, can accurately control the motion trajectory of the tractor, and has high running trajectory accuracy, which is suitable for long-distance transportation; 3. The tractor is attached to the top wall of the concave part of the guide rail through the guide wheel to form a dual guide structure, which effectively prevents the tractor from lateral displacement and improves the operation stability; 4. The guide wheel can not only prevent lateral displacement, but also effectively limit the vibration of the tractor in the vertical direction, significantly improve the anti-vibration performance, and ensure the smooth and reliable material transportation process; 5. The adjustable structural design of the guide wheel can adapt to guide rails of different specifications, further improve the guiding effect, and extend the service life of the equipment; 6. The overall structure is simple, the installation and maintenance are convenient, the reliability is high, and it is suitable for long-term continuous operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the feeding and discharging device of the embodiment;

[0025] Figure 2 It is a cross-sectional view of the feeding and discharging device of the embodiment;

[0026] Figure 3 It is a schematic diagram of the structure of the cooperation between the side of the tractor and the guide rail;

[0027] Figure 4 Schematic diagram of the structure of the annealing furnace in the embodiment.

[0028] Explanation of the reference numerals in the accompanying drawings: 10, rack; 20, guide rail; 21, recess; 30, tractor; 31, walking wheel; 32, guide wheel; 33, driving gear; 34, mounting seat; 341, supporting portion; 3411, groove; 342, guide hole; 35, movable plate; 351, connecting portion; 3511, threaded through hole; 352, mounting column; 36, bolt; 37, through hole; 40, driving motor; 50, first transmission shaft; 51, first transmission gear; 60, second transmission shaft; 61, second transmission gear; 70, chain; 80, ground; 81, groove; 90, material cart; 100, furnace body. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] like Figure 1 to Figure 3As shown, the material loading and unloading device of this embodiment includes a rack 10, two guide rails 20, a tractor 30 and a material cart 90.

[0031] Three grooves 81 are provided on the ground 80, and the three grooves 81 extend in a straight line and are parallel to each other. The rack 10 extends in a straight line, and the two guide rails 20 are respectively located on both sides of the rack 10. The two guide rails 20 extend in a straight line and are parallel to the rack 10. The rack 10 and the two guide rails 20 are respectively installed in the three grooves 81, and the upper end surfaces of the rack 10 and the two guide rails 20 are roughly flush with the ground 80, that is, the rack 10 and the two guide rails 20 are embedded under the ground. In this way, the installation space of the feeding and unloading device is saved, and the rack 10 and the guide rails 20 will not hinder the passage of other vehicles (such as forklifts).

[0032] The side walls of the two guide rails 20 are each provided with a recess 21 extending along the length direction of the guide rail 20 .

[0033] Traveling wheels 31 and guide wheels 32 are provided on both sides of the tractor 30. Four traveling wheels 31 and two guide wheels 32 are provided on each side of the tractor 30. That is to say, there are a total of eight traveling wheels 31 and four guide wheels 32 on the tractor 30 to ensure that the tractor 30 can run smoothly along the guide rail 20.

[0034] The running wheels 31 on both sides of the tractor 30 can respectively roll against the top surfaces of the two guide rails 20, that is, the running wheels 31 are placed downward on the guide rails 20, and the guide rails 20 support the running wheels 31. The guide wheels 32 on both sides of the tractor 30 can respectively roll against the top walls of the recesses 21 of the two guide rails 20, so that the guide wheels 32 are limited by the side walls of the recesses 21 in the lateral direction, and at the same time, the guide wheels 32 are limited by the top walls of the recesses 21 in the vertical direction, and the guide wheels 32 can roll along the top walls of the recesses 21, so that the tractor 30 can be effectively prevented from lateral deviation during operation and from vibrating in the vertical direction.

[0035] The tractor 30 is provided with a driving gear 33 and a driving mechanism for driving the driving gear 33 to rotate. The driving gear 33 is meshed with the rack 10. The driving gear 33 is rotatably installed on the tractor 30. When the driving gear 33 rotates, the tractor 30 can be driven to move forward or backward along the rack 10. The driving gear 33 controls the forward and backward movement of the tractor 30 by changing the rotation direction (forward or reverse).

[0036] The material cart 90 is movably arranged on the two guide rails 20. The material cart 90 is located in front of the tractor 30. The tractor 30 is used to drive the material cart 90 to move forward or backward along the guide rails 20. The tractor 30 is provided with two hook pull members, an electric push rod and a mounting rod. The mounting rod is movably arranged at the front end of the tractor 30. The two hook pull members are fixedly arranged on the mounting rod. The piston rod of the electric push rod is connected to the mounting rod. The electric push rod drives the two hook pull members to flip by driving the mounting rod to move. A crossbeam is fixedly provided at the rear end, and the two hook pulls can be hooked on or detached from the crossbeam by flipping. In this way, when the tractor 30 needs to drive the material cart 90 forward, the two hook pulls hook the crossbeam, and the tractor 30 can push the material cart 90 forward. When the material cart 90 moves into place, the two hook pulls detach from the crossbeam, and the tractor 30 is separated from the material cart 90; when the tractor 30 needs to pull the material cart 90 back, the two hook pulls hook the crossbeam, and the tractor 30 can pull the material cart 90 back.

[0037] The mounting structure of each guide wheel 32 is the same. For a clearer description, only the mounting structure of a single guide wheel 32 is described below.

[0038] The guide wheels 32 are adjustably arranged on both sides of the tractor 30, and the guide wheels 32 can be adjusted in the up and down direction so that the guide wheels 32 are close to or away from the top wall of the recessed portion 21. In this embodiment, mounting seats 34 are arranged on both sides of the tractor 30, and a support portion 341 is fixedly arranged on the mounting seat 34. A guide hole 342 is arranged to pass through the mounting seat 34 from top to bottom, and a movable plate 35 is movably inserted in the guide hole 342, so that the movable plate 35 can move up and down relative to the mounting seat 34. A connecting portion 351 is fixedly arranged on the upper end of the movable plate 35, and the connecting portion 351 is located above the supporting portion 341. A threaded through hole 3511 is arranged on the connecting portion 351, and a bolt 36 passes downward and is screwed on the threaded through hole 3511, and the lower end of the bolt 36 abuts against the upper surface of the supporting portion 341. The upper surface of the part 341 is provided with a groove 3411, and the lower end of the bolt 36 abuts against the bottom surface of the groove 3411. A mounting post 352 is fixedly provided at the lower part of the movable plate 35. The mounting post 352 is perpendicular to the movable plate 35 and extends into the recess 21. The guide wheel 32 is rotatably sleeved on the mounting post 352. In this way, the guide wheel 32 can be adjusted to adapt to guide rails of different specifications, thereby further improving the guiding performance. Moreover, the movable plate 35 can be adjusted up and down by simply screwing the bolt 36, thereby adjusting the position of the guide wheel 32 in the up and down direction. The structure is simple and the operation is convenient. The lower end of the bolt 36 abuts against the bottom surface of the groove 3411. The groove 3411 can limit the lower end of the bolt 36 to avoid deflection of the bolt when subjected to force, thereby further improving the stability of the guide wheel 32.

[0039] The driving mechanism includes a driving motor 40, a first transmission shaft 50 and a second transmission shaft 60. The driving motor 40 is fixedly arranged on the upper side of the tractor 30, and the first transmission shaft 50 is rotatably arranged on the upper side of the tractor 30. Specifically, the tractor 30 is provided with two first bearing seats, and the first transmission shaft 50 is rotatably installed on the two first bearing seats. A first transmission gear 51 is fixedly sleeved on the first transmission shaft 50. The output shaft of the driving motor 40 is coaxially connected with the first transmission shaft 50 through a reduction mechanism. The driving motor 40 is used to drive the first transmission shaft 50 to rotate, and the second transmission shaft 60 is rotatably arranged on the lower side of the tractor 30. Specifically, the tractor 30 is provided with three The second bearing seat and the second transmission shaft 60 are rotatably installed on the three second bearing seats. The second transmission shaft 60 is fixedly sleeved with a second transmission gear 61. The first transmission gear 51 and the second transmission gear 61 are connected by a chain 70 for synchronous rotation. The tractor 30 is provided with a through hole 37 for the transmission belt 70 to pass through. The driving gear 33 is fixedly sleeved on the second transmission shaft 60. In this way, the driving motor 40 drives the first transmission gear 51 to rotate through the first transmission shaft 50, and the first transmission gear 51 drives the second transmission gear 61 to rotate synchronously through the chain 70, and finally drives the driving gear 33 to rotate through the second transmission shaft 60, thereby driving the material cart 30 to move forward or backward along the rack 10.

[0040] like Figure 4 As shown, the annealing furnace of this embodiment includes the loading and unloading device and the furnace body 100. When the product needs to be annealed, the product is placed on the trolley 90, the tractor 30 hooks and pulls the trolley 90, and then the tractor 30 pushes the trolley 90 forward to push the trolley into the furnace body 100. Then the tractor 30 and the trolley 90 are separated, the tractor 30 retreats, the trolley 90 remains in the furnace body 100, and then the furnace door is closed to anneal the product on the trolley 90. When the product is annealed, the tractor 30 moves forward, the tractor 30 hooks and pulls the trolley 90, and then the tractor 30 pulls the trolley 90 out of the furnace body 100, thereby taking the annealed product out of the furnace body 100.

[0041] This specification and the drawings are merely exemplary illustrations of the present application and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application and its equivalents, the present application intends to include these modifications and variations.

Claims

1. A feeding and discharging device, characterized in that: It comprises a rack (10), two guide rails (20), a tractor (30) and a material cart (90); The rack (10) extends in a straight line; The two guide rails (20) are respectively located on both sides of the rack (10); the two guide rails (20) extend in a straight line and are parallel to the rack (10); and the side walls of the two guide rails (20) are provided with a recess (21) extending along the length direction of the guide rails (20); Both sides of the tractor (30) are provided with running wheels (31) and guide wheels (32); the running wheels (31) on both sides of the tractor (30) can respectively roll against the top surfaces of the two guide rails (20); and the guide wheels (32) on both sides of the tractor (30) can respectively roll against the top walls of the recessed portions (21) of the two guide rails (20); The tractor (30) is provided with a driving gear (33) and a driving mechanism for driving the driving gear (33) to rotate, and the driving gear (33) is meshed with the rack (10) so that the tractor (30) is driven to move forward or backward along the rack (10) through the forward and reverse rotation of the driving gear (33); The material cart (90) is movably arranged on two guide rails (20), and the tractor (30) is used to drive the material cart (90) to move forward or backward along the guide rails (20).

2. The feeding and discharging device according to claim 1, characterized in that: The guide wheels (32) are adjustably arranged on both sides of the tractor (30), and the guide wheels (32) can be adjusted in the up and down directions so that the guide wheels (32) are close to or away from the top wall of the recess (21) where they are located.

3. The feeding and discharging device according to claim 2, characterized in that: The tractor (30) is provided with a mounting seat (34) on both sides, a support portion (341) is fixedly provided on the mounting seat (34), a guide hole (342) is provided through the mounting seat (34) from top to bottom, a movable plate (35) is movably inserted in the guide hole (342), a connecting portion (351) is fixedly provided at the upper end of the movable plate (35), the connecting portion (351) is located above the support portion (341), a threaded through hole (3511) is provided on the connecting portion (351), a bolt (36) passes through downward and is screwed on the threaded through hole (3511), the lower end of the bolt (36) abuts against the upper surface of the support portion (341), and the guide wheel (32) is provided at the lower part of the movable plate (35).

4. The feeding and discharging device according to claim 3, characterized in that: The upper surface of the support portion (341) is provided with a groove (3411), and the lower end of the bolt (36) abuts against the bottom surface of the groove (3411).

5. The feeding and discharging device according to claim 1, characterized in that: The driving mechanism comprises a driving motor (40), a first transmission shaft (50) and a second transmission shaft (60); the driving motor (40) is fixedly arranged on the upper side of the tractor (30); the first transmission shaft (50) is rotatably arranged on the upper side of the tractor (30); a first transmission gear (51) is fixedly sleeved on the first transmission shaft (50); the driving motor (40) is used to drive the first transmission shaft (50) to rotate; the second transmission shaft (60) is rotatably arranged on the lower side of the tractor (30); a second transmission gear (61) is fixedly sleeved on the second transmission shaft (60); the first transmission gear (51) and the second transmission gear (61) are connected by a chain (70) to rotate synchronously; a through hole (37) for a transmission belt (70) to pass through is arranged on the tractor (30); and the driving gear (33) is fixedly sleeved on the second transmission shaft (60).

6. The feeding and discharging device according to claim 1, characterized in that: The rack (10) and the two guide rails (20) are embedded under the ground.

7. An annealing furnace, characterized in that: It comprises the feeding and discharging device as described in any one of claims 1 to 6.

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