Matched transfer trolley for vacuum sintering furnace

Abstract

The utility model discloses a transfer car matched with a vacuum sintering furnace, and relates to the technical field of transfer cars, the transfer car comprises a car body, the car body is provided with an outer lifting platform and an inner lifting platform, the top of the outer lifting platform is provided with a plurality of supporting platforms, the tops of the supporting platforms are provided with placing groove bodies, and product blanks are placed in the placing groove bodies; the independent supporting tables are arranged on the outer lifting table, the products are separated from one another through the supporting tables on all layers, the limiting effect is achieved, and collision between the products is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of transfer vehicles, and particularly relates to a transfer vehicle supporting a vacuum sintering furnace. Background Art

[0002] During the process of transferring the furnace of a vacuum sintering furnace, a transfer vehicle is needed to transfer the green body from the pressing place of the press to the transfer furnace through the transfer vehicle. During the transfer process of a conventional transfer vehicle, there may be possibilities such as bumping and instability due to too many layers of graphite plates.

[0003] For example, Chinese Patent CN214087173U, with the publication date of August 31, 2021, discloses a transfer vehicle for nitrogen filling and oxygen discharging of neodymium iron boron green blanks, which includes a vehicle body and elastic fixing buckles. A placing cavity is arranged on the upper part of the vehicle body, a winch is arranged on the lower part of the vehicle body, a nitrogen pipe is wound around the winch, one end of the nitrogen pipe communicates with the placing cavity, and the other end of the nitrogen pipe communicates with a nitrogen tank; the elastic fixing buckles are fixed on the ground of the movement route of the vehicle body, and rotating wheels and pressing wheels are arranged at the bottom of the vehicle body. The nitrogen pipe bypasses the pressing wheels, and when the vehicle body moves forward, the pressing wheels press the nitrogen pipe into the elastic fixing buckles. When the above products are placed, they may be bumped because they are stacked together. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: the technical problem that existing transfer vehicles may cause bumps to products or instability of graphite plates during the transfer process. A transfer vehicle supporting a vacuum sintering furnace is proposed, which can effectively avoid bumps to products or instability due to too many layers of graphite plates.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is: a transfer vehicle supporting a vacuum sintering furnace, including a vehicle body, an outer lifting platform and an inner lifting platform are arranged on the vehicle body, a plurality of supporting platforms are arranged on the top of the outer lifting platform, a placing groove body is arranged on the top of the supporting platform, and product green blanks are placed in the placing groove body.

[0006] A transfer vehicle supporting a vacuum sintering furnace, an inner lifting platform is arranged at the middle position of the vehicle body, outer lifting platforms are arranged on both sides of the inner lifting platform, supporting platforms are arranged on the outer lifting platforms, placing groove bodies are arranged at the inner edges of the supporting platforms, products are placed in the placing groove bodies, and only one product is placed on each layer of the supporting platforms, so that the products are separated from each other to avoid collision.

[0007] Preferably, a plurality of fixing holes are arranged on the supporting platform, the bottom supporting platform is connected with the outer lifting platform through a pin passing through the fixing hole, and the mutually attached supporting platforms are fixed through pins. The supporting platforms are fixed to each other and to the outer lifting platform through pins.

[0008] Preferably, a graphite plate is provided in the placement tank, a plurality of graphite support columns are provided on the graphite plate, the graphite plate is located at the bottom of the product embryo, and the top of the product embryo is lower than the top of the placement tank. The product embryo and the graphite plate cannot protrude from the placement tank to avoid collision with the upper graphite plate.

[0009] Preferably, the outer lifting platform and the inner lifting platform are provided with lifting devices at the bottom. The outer lifting platform and the inner lifting platform have separate lifting devices respectively, and can be lifted and lowered independently.

[0010] Preferably, a plurality of mutually parallel conveying rollers are arranged on the top of the inner lifting platform, and the graphite plate is moved by the rotation of the conveying rollers.

[0011] Preferably, a graphite plate push-and-retract hook is provided on the top of the inner lifting platform, and the graphite plate is provided with a positioning hole, and the graphite plate push-and-retract hook is embedded in the positioning hole when the inner lifting platform rises. The graphite plate push-and-retract hook pushes the graphite plate to move.

[0012] Preferably, a threaded shaft is provided on the top of the inner lifting platform, the graphite plate push-and-retract hook is connected to the threaded shaft, and when the conveying roller pushes the graphite plate to move, the graphite plate push-and-retract hook slides along the threaded shaft. The graphite plate push-and-retract hook is slidably connected to the threaded shaft.

[0013] Preferably, the side of the vehicle body is provided with a plurality of guide wheels, which cooperate with the ground positioning rails to fix the direction and movement of the transfer vehicle.

[0014] Preferably, a plurality of wheels are provided at the bottom of the vehicle body, and the vehicle body is driven to move by the wheels.

[0015] The substantial effect of the utility model is that the utility model divides the lifting platform into two groups, inner and outer, to effectively realize automated operation; an independent support platform is arranged on the outer lifting platform, each layer of the support platform separates the products from each other to prevent collisions between them, and the support platform also plays a role of limiting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of embodiment 1.

[0017] Figure 2 It is a top view of the first embodiment.

[0018] Figure 3 It is a side view of the first embodiment.

[0019] Among them: 1. Car body, 2. External lifting platform, 3. Internal lifting platform, 4. Support platform, 5. Placement trough, 6. Fixing hole, 7. Graphite plate, 8. Graphite support column, 9. Conveying roller, 10. Threaded shaft, 11. Graphite plate pushing and retracting hook, 12. Guide wheel, 13. Wheel. DETAILED DESCRIPTION

[0020] The following will further specifically describe the specific implementation manners of the present utility model through specific embodiments in conjunction with the accompanying drawings.

[0021] Embodiment 1:

[0022] A transfer vehicle supporting a vacuum sintering furnace, as Figure 1 and Figure 2 shown, the body 1 of the transfer vehicle is in an L shape. The side close to the vertical surface of the L shape is called the inner side, and the side opposite to the inner side is called the outer side. When transferring and unloading products, the products move from one end of the inner side to one end of the outer side. An outer lifting platform 2 and an inner lifting platform 3 are provided on the body 1. The outer lifting platform 2 is divided into two parts, which are respectively located on both sides of the body 1 and are in a long strip shape. The two outer lifting platforms 2 on both sides are controlled by the same link mechanism so that the two outer lifting platforms 2 are always at the same height. The inner lifting platform 3 is located between the two outer lifting platforms 2 and is square. The outer lifting platform 2 and the inner lifting platform 3 are independently controlled and do not interfere with each other.

[0023] Support platforms 4 are respectively provided on the two outer lifting platforms 2 on both sides. The support platforms 4 are in a long strip shape, and the support platforms 4 are arranged in layers. Each layer of the support platforms 4 has the same shape and size, but can be independently disassembled. The support platform 4 is provided with a placement groove body 5, and the placement groove body 5 is located at the top of the support platform 4. The placement groove body 5 is located on the opposite two sides of the support platforms 4 on the same horizontal plane, and the placement groove body 5 is not connected to the short side of the placement platform located on the inner side to avoid the products extending too far in, playing a limiting role, but is connected to the short side of the placement platform located on the outer side, which can facilitate the removal of the products from the placement platform when unloading. The placement groove body 5 is used to store and place product blanks. The width of the placement groove bodies 5 on the placement platforms on the same horizontal plane matches the size of the product blanks. The product blanks can be completely embedded in the space formed by the placement groove bodies 5, and the limiting effect of the placement platform can prevent the product blanks from moving randomly and colliding, causing damage.

[0024] A graphite plate 7 is provided in the placement groove body 5. The size and shape of the graphite plate 7 match the placement groove body 5. A number of graphite support columns 8 are provided on the graphite plate 7. The graphite support columns 8 are in a cylindrical shape. Product blanks are placed on the graphite support columns 8, and the graphite support columns 8 play a supporting role, making the product blanks in a suspended state. The number of the graphite support columns 8 can be adjusted according to the actual situation as long as the product blanks can be stably in a suspended state. In this embodiment, the number of the graphite support columns 8 is selected to be 12, with a total of three rows and four in each row, evenly distributed. When the product blanks are placed on the graphite support columns 8, the top of the product blanks does not exceed the top of the placement groove body 5 to prevent collision with the upper support platform 4, and only one layer of product blanks is placed on each placement platform, thereby avoiding collision between products and maximizing the integrity of the product blanks.

[0025] A number of fixing holes 6 are provided on the support platform 4. The fixing holes 6 are located at positions outside the placement groove body 5, and corresponding holes are also provided at corresponding positions on the top of the outer lifting platform 2. One layer of the support platform 4 that fits with the outer lifting platform 2 is fixed by a pin passing through the fixing hole 6, and the fixing between the support platforms 4 is also achieved by the action of the pin and the fixing hole 6. During use, first place one end of the placement groove body 5 of the lowermost support platform 4 upward and fix it on the outer lifting platform 2 with a pin. Then, place the graphite plate 7, graphite support column 8, and product embryo in sequence. Next, fix the support platform 4 with the upward placement groove body 5 of the next layer with a pin, and place the graphite plate 7, graphite support column 8, and product embryo in sequence, and so on until all product embryos are placed or the loading capacity of the transfer vehicle reaches the limit value and stops. During transportation, the product embryos can be perfectly protected due to the limitation and separation of the support platform 4.

[0026] As Figure 3 shown, the inner lifting platform 3 is provided with a number of conveying rollers 9. The conveying rollers 9 are divided into two rows. The two rows of conveying rollers 9 are on the same plane, and the number of the two rows of conveying rollers 9 is the same. Both ends of the conveying rollers 9 are fixed by fixing rods respectively. The inner lifting platform 3 and the outer lifting platform 2 are used in cooperation. When loading the product embryo onto the vehicle, the inner lifting platform 3 descends to a position lower than the outer lifting platform 2. When unloading, the outer lifting platform first rises to the horizontal position with the sintering furnace rollers, then raises the inner lifting platform 3 to the horizontal position with the sintering furnace rollers, and lowers the outer lifting platform 2. The graphite plate 7 stays on the inner lifting platform 3, and the product enters the sintering furnace from the sintering furnace rollers through the rotation of the conveying rollers 9.

[0027] A number of wheels 13 are provided at the bottom of the vehicle body 1. Most of the wheels 13 are embedded in the vehicle body 1, thereby reducing the overall height of the vehicle body 1 and making the traveling process more stable. A number of guide wheels 12 are provided on both sides of the vehicle body 1. The guide wheels 12 can make the transfer vehicle change direction. The number of the guide wheels 12 can be set according to actual needs. In this embodiment, four guide wheels 12 are respectively provided at both ends of the vehicle body 1.

[0028] Embodiment 2:

[0029] The body 1 of the transfer vehicle is L-shaped. The side close to the vertical plane of the L-shape is called the inner side, and the side opposite to the inner side is called the outer side. When the product is transferred and unloaded, the product moves from one end of the inner side to one end of the outer side. An outer lifting platform 2 and an inner lifting platform 3 are provided on the body 1. The outer lifting platform 2 is divided into two parts, which are located on both sides of the body 1 respectively and are in a long strip shape. The two outer lifting platforms 2 on both sides are controlled by the same linkage mechanism so that the two outer lifting platforms 2 are always at the same height. The inner lifting platform 3 is located between the two outer lifting platforms 2 and is square. The outer lifting platform 2 and the inner lifting platform 3 are independently controlled and do not interfere with each other.

[0030] Support platforms 4 are respectively provided on the two outer lifting platforms 2. The support platforms 4 are in a long strip shape and are arranged in layers. Each layer of the support platforms 4 has the same shape and size, but can be independently disassembled. A placement groove body 5 is provided on the support platform 4. The placement groove body 5 is located at the top of the support platform 4. The placement groove body 5 is located on the opposite two sides of the support platforms 4 on the same horizontal plane, and the placement groove body 5 is not connected to the short side on the inner side of the placement platform to prevent the product from extending too far in, playing a limiting role. However, it is connected to the short side on the outer side of the placement platform, which can facilitate the removal of the product when unloading. The placement groove body 5 is used to store and place the product embryos. The width of the placement groove bodies 5 on the placement platforms on the same horizontal plane matches the size of the product embryos. The product embryos can be completely embedded in the space formed by the placement groove bodies 5, and the limiting effect of the placement platform can prevent the product embryos from moving randomly and colliding, causing damage.

[0031] A graphite plate 7 is provided in the placement groove body 5. The size and shape of the graphite plate 7 match the placement groove body 5. A number of graphite support columns 8 are provided on the graphite plate 7. The graphite support columns 8 are in a cylindrical shape. The product embryos are placed on the graphite support columns 8, and the graphite support columns 8 play a supporting role, making the product embryos in a suspended state. The number of the graphite support columns 8 can be adjusted according to the actual situation as long as the product embryos can be stably in a suspended state. In this embodiment, the number of the graphite support columns 8 is selected to be 12, with a total of three rows and four in each row, evenly distributed. When the product embryos are placed on the graphite support columns 8, the tops of the product embryos do not exceed the top of the placement groove body 5 to prevent collision with the upper support platform 4, and only one layer of product embryos is placed on each placement platform, so as to avoid collision between products and maximize the integrity of the product embryos.

[0032] A number of fixing holes 6 are provided on the support table 4. The fixing holes 6 are located at positions outside the placement groove body 5. Corresponding holes are also provided at corresponding positions on the top of the outer lifting table 2. One layer of the support table 4 that fits with the outer lifting table 2 is fixed by a pin passing through the fixing hole 6. The fixing between the support tables 4 is also achieved through the action of the pin and the fixing hole 6. During use, first place one end of the placement groove body 5 of the bottommost support table 4 upwards and fix it on the outer lifting table 2 with a pin. Then, place the graphite plate 7, graphite support column 8, and product embryo in sequence. Next, fix the support table 4 with the placement groove body 5 facing upwards on the next layer with a pin, and place the graphite plate 7, graphite support column 8, and product embryo in sequence, and so on, until all product embryos are placed or the loading capacity of the transfer cart reaches the limit value and stops. During transportation, the product embryos can be perfectly protected due to the limit and separation of the support table 4.

[0033] As Figure 3 shown, a number of conveying rollers 9 are provided on the inner lifting table 3. The conveying rollers 9 are divided into two rows. The two rows of conveying rollers 9 are on the same plane, and the number of the two rows of conveying rollers 9 is the same. Both ends of the conveying rollers 9 are fixed by fixing rods respectively. The inner lifting table 3 and the outer lifting table 2 are used in cooperation. When loading the product embryo onto the vehicle, the inner lifting table 3 descends to a position lower than the outer lifting table 2. When unloading, the outer lifting table first rises to the horizontal position with the sintering furnace rollers, then the inner lifting table 3 is raised to the horizontal position with the sintering furnace rollers, and the outer lifting table 2 is lowered. The graphite plate 7 stays on the inner lifting table 3. Through the rotation of the conveying rollers 9, the product enters the sintering furnace from the sintering furnace rollers.

[0034] A threaded shaft 10 is also provided between the two rows of conveying rollers 9. A graphite plate push-pull hook 11 is provided on the threaded shaft 10. The graphite plate push-pull hook 11 can move along the threaded shaft 10. The graphite plate push-pull hook 11 is in an L shape, and positioning holes are provided at corresponding positions on the graphite plate 7. When the graphite plate 7 is too smooth for the conveying rollers 9 to move the graphite plate 7, the graphite plate 7 can be moved by the graphite plate push-pull hook 11. When unloading, the outer lifting table first rises to the horizontal position with the sintering furnace rollers, then the inner lifting table 3 is raised to the horizontal position with the sintering furnace rollers, and the outer lifting table 2 is lowered. The graphite plate 7 stays on the inner lifting table 3. Start the motor, control the graphite plate push-pull hook 11 to be inserted into the positioning hole, the conveying rollers 9 rotate, and at the same time the graphite plate push-pull hook 11 moves outwards along the threaded shaft 10. Through the rotation of the conveying rollers 9 and the movement of the graphite plate push-pull hook 11, the product enters the sintering furnace from the sintering furnace rollers.

[0035] Several wheels 13 are provided at the bottom of the vehicle body 1. Most of the wheels 13 are embedded in the vehicle body 1, thereby reducing the overall height of the vehicle body 1 and making the traveling process more stable. Several guide wheels 12 are provided on both sides of the vehicle body 1. The guide wheels 12 can enable the transfer vehicle to change direction. The number of the guide wheels 12 can be set according to actual needs. In this embodiment, four guide wheels 12 are respectively provided at both ends of the vehicle body 1.

[0036] When loading the vehicle, it is in the initial state. The inner lifting table 3 and the graphite plate 7 are in a suspended state. The support table 4 is fixed to the outer lifting table 2 with a pin. The graphite plate 7 is placed on the support table 4. When a layer of product embryos and graphite support columns 8 are placed, the upper support table 4 is fixed with a pin, and the product embryos and graphite support columns 8 are continuously placed. The loading of the entire furnace of products is completed in this mode. After the vehicle loading is completed, the products need to be transferred and loaded into the furnace. During this process, the graphite support columns 8 are placed on the graphite plates 7. The graphite support columns 8 and the upper graphite plates 7 are in a suspended state. The graphite plates 7 are placed on the support tables 4. The support tables 4 are fixed to each other with pins, which can not only fix the graphite plates 7 but also play a protective role to prevent bumps and the shaking of the graphite plates 7. When the transfer vehicle transfers the products to the vacuum sintering furnace, the direction and position of the transfer vehicle are fixed with the guide wheels 12 and the ground positioning guide rails. The outer lifting table 2 is raised to a height higher than the horizontal height of the rollers in the sintering furnace, and then the inner lifting table 3 is raised to the same height as the rollers in the sintering furnace. The outer lifting table 2 is lowered so that the graphite plates 7 are placed on the inner lifting table 3. The upper and lower graphite plates 7 are supported by the graphite support columns 8, and then the graphite plate push and retract hooks 11 are used to push the graphite plates 7 into the sintering furnace.

[0037] The above embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A transfer vehicle supporting a vacuum sintering furnace, including a vehicle body, characterized in that, The vehicle body is provided with an outer lifting platform and an inner lifting platform. The top of the outer lifting platform is provided with a plurality of support platforms. The top of the support platforms is provided with a placing groove body, and the product embryo is placed in the placing groove body. The support platforms are provided with a plurality of fixing holes. The bottom support platform is connected to the outer lifting platform through a pin passing through the fixing holes, and the mutually attached support platforms are fixed by pins. The bottom of the outer lifting platform and the inner lifting platform is provided with a lifting device. The top of the inner lifting platform is provided with a plurality of mutually parallel conveying rollers.

2. The transfer cart supporting the vacuum sintering furnace according to claim 1, wherein The support platforms are arranged in layers. Each layer of support platforms has the same shape and size and can be independently disassembled.

3. The transfer vehicle supporting a vacuum sintering furnace according to claim 2, wherein The placing groove body is provided with a graphite plate. The graphite plate is provided with a plurality of graphite support columns. The graphite plate is located at the bottom of the product embryo, and the top of the product embryo is lower than the top of the placing groove body.

4. A transfer cart for supporting a vacuum sintering furnace according to claim 3, characterized in that, The product embryo is placed on the graphite support columns, and the product embryo is in a suspended state.

5. A transfer cart for supporting a vacuum sintering furnace according to claim 4, characterized in that, The fixing holes are located at positions outside the placing groove body, and corresponding holes are also provided at corresponding positions on the top of the outer lifting platform.

6. The transfer cart supporting a vacuum sintering furnace according to claim 5, wherein The top of the inner lifting platform is provided with a graphite plate pushing and receiving hook. The graphite plate is provided with a positioning hole. When the inner lifting platform rises, the graphite plate pushing and receiving hook is inserted into the positioning hole.

7. The transfer vehicle supporting a vacuum sintering furnace according to claim 6, characterized in that, The top of the inner lifting platform is provided with a threaded shaft. The graphite plate pushing and receiving hook is connected to the threaded shaft. When the conveying rollers push the graphite plate to move, the graphite plate pushing and receiving hook moves outwards along the threaded shaft.

8. A transfer vehicle supporting a vacuum sintering furnace according to claim 1 or 2 or 3 or 4, characterized in that, A plurality of guide wheels are provided on the side of the vehicle body.

9. A transfer vehicle supporting a vacuum sintering furnace according to claim 1 or 2 or 3 or 4, characterized in that A plurality of wheels are provided at the bottom of the vehicle body.

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