Multi-temperature-section heat treatment equipment for intake and exhaust valves

Abstract

The utility model discloses inlet and exhaust valve multi-temperature-section heat treatment equipment which comprises a heating furnace, a placing table is arranged on one side of the heating furnace, a plurality of material storage racks are annularly and circumferentially arranged at the top of the placing table, each material storage rack comprises a frame and a plurality of first limiting rods, a plurality of second limiting rods are transversely and slidably connected to the inner wall of each frame, and the first limiting rods and the second limiting rods are arranged in parallel. A plurality of limiting placement grooves are formed in the top surfaces of the first limiting rod and the second limiting rod in parallel, every two adjacent limiting placement grooves are arranged in a staggered mode, a hanging frame is fixed to the top of the frame, a plurality of connecting plates are fixed to the outer wall of one side of the frame, screw rods are rotationally connected to the inner walls of the connecting plates, and a connecting block is connected to one side of the second limiting rod. According to the air valve storage rack, the air valves can be placed in a limiting mode through the storage rack, the two adjacent limiting placing grooves are arranged in a staggered mode, the overall weight balance of the storage rack can be kept under the limitation of the shapes of the air valves, and the situation that the storage rack inclines during hoisting due to the fact that one side of the storage rack is too heavy is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve production technical field especially, and relates to intake and exhaust valve multi-temperature section heat treatment equipment. BACKGROUND

[0002] The function of valve is responsible for inputting air into engine and discharging waste gas after combustion, the temperature of valve head is very high, and it also bears the pressure of gas, the force of valve spring and the inertial force of transmission assembly, its lubrication and cooling condition are poor, and valve must have certain strength, rigidity, heat resistance and wear resistance.

[0003] Through the retrieval, the patent of China patent publication No. CN118957235A discloses a valve multi-temperature section heat treatment system, including slide rail, the heating furnace is arranged below the slide rail, a plurality of heating chambers with different internal temperatures are arranged in the heating furnace, the slide rail is slidably connected with the translation mechanism, the translation mechanism is provided with lifting mechanism and drive mechanism, the lifting mechanism is provided with lifting hook mechanism at the lower end, the heating furnace is provided with two symmetrical lifting mechanisms on one side, the lifting hook mechanism is connected with the lifting mechanism during movement, and the translation mechanism is also uniformly provided with a plurality of intercepting mechanisms corresponding to the positions of the heating chambers.

[0004] The lifting hook mechanism is arranged, and the storage rack placed on the feeding tray can be automatically lifted under the guidance of the lifting mechanism, and then the storage rack is placed in the heating chamber, but the valves are stacked on the storage rack when the valves are placed on the storage rack, the storage rack will shake when being lifted, and the valves will collide and rub with each other, thereby affecting the quality of the valves. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides an intake and exhaust valve multi-temperature section heat treatment equipment.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The intake and exhaust valve multi-temperature section heat treatment equipment comprises a heating furnace, a placing table is arranged on one side of the heating furnace, a plurality of storage racks are arranged in the annular circumferential direction on the top of the placing table, the storage rack comprises a frame and a plurality of limiting rods one, a plurality of limiting rods one are vertically arranged and fixed in the inner wall of the frame, a plurality of limiting rods two are slidably connected to the inner wall of the frame, the limiting rods two are oppositely arranged with the limiting rods one, a plurality of limiting placing grooves are arranged in parallel on the top surfaces of the limiting rods one and the limiting rods two, and adjacent two limiting placing grooves are arranged in a staggered manner, a hanger is fixed to the top of the frame, a plurality of connecting plates are fixed to the outer wall of one side of the frame, a screw rod is rotatably connected to the inner wall of the connecting plate, a connecting block is connected to one side of the limiting rod two, and the connecting block is threadedly connected with the outer wall of the screw rod.

[0008] As a further scheme of the utility model: the heating furnace includes multiple heating cavities of different temperatures, a same fixing frame is arranged above the heating furnace and the placing table, two mutually parallel hoisting mechanisms are arranged on the top of the fixing frame.

[0009] As a further scheme of the utility model: the hoisting mechanism includes a moving plate and a driving mechanism one, the moving plate is slidingly fitted on the outer wall of the top of the fixing frame, and the driving mechanism one is arranged on the top of the moving plate.

[0010] As a further scheme of the utility model: a guide frame is fixed on the outer wall of the bottom of the moving plate, a lead screw is rotatably connected to the inner wall of the guide frame, and a rotating motor for driving the rotation of the lead screw is arranged on the outer wall of the guide frame.

[0011] As a further scheme of the utility model: an L-shaped rod is slidingly fitted on the inner wall of the guide frame, and the L-shaped rod is threadedly matched with the lead screw.

[0012] As a further scheme of the utility model: an installation frame is fixed on the outer wall of the bottom of the L-shaped rod, a threaded rod is rotatably connected to the outer wall of the bottom of the installation frame, and a guide rod parallel to the threaded rod is arranged on one side of the threaded rod.

[0013] As a further scheme of the utility model: a lifting frame is threadedly matched with the outer wall of the threaded rod, the lifting frame is slidingly fitted with the guide rod, a hook is fixed on one side of the bottom of the lifting frame, the lifting frame is slidingly fitted with the guide rod, and a driving mechanism two for driving the rotation of the threaded rod is arranged on the outer wall of the top of the installation frame.

[0014] Compared with the prior art, the utility model provides intake and exhaust valve multi-temperature section heat treatment equipment, has the following beneficial effects:

[0015] The utility model discloses a store material frame can be positioned to the valve, and through the adjacent two limit and place the groove misplacement setting, can keep the weight balance of the whole store material frame under the shape limitation of the valve itself to avoid the one side of the store material frame to be too heavy and cause the store material frame to incline when hoisting.

[0016] Through being provided with connecting plate, connecting block and screw rod, can adjust the distance between limit rod no.

[0017] Through being provided with two hoisting mechanisms, can hoist two store material frames simultaneously, improves the hoisting speed of store material frame.

[0018] The part not involved in the device is same as or can adopt the prior art to be realized, the utility model structure is simple, and convenient operation. ACCURACY OF DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the storage rack of this utility model.

[0021] Figure 3 This is a side view of the storage rack of this utility model.

[0022] Figure 4 This is a schematic diagram of the hoisting mechanism of this utility model.

[0023] In the diagram: 1. Heating furnace; 2. Placement platform; 3. Storage rack; 4. Fixing frame; 5. Lifting mechanism; 6. Frame; 7. Limiting rod one; 8. Limiting rod two; 9. Hanging bracket; 10. Limiting placement slot; 11. Connecting plate; 12. Connecting block; 13. Screw; 14. Moving plate; 15. Drive mechanism one; 16. Guide frame; 17. L-shaped rod; 18. Lead screw; 19. Mounting frame; 20. Drive mechanism two; 21. Guide rod; 22. Threaded rod; 23. Lifting frame. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example 1

[0026] Multi-temperature-segment heat treatment equipment with intake and exhaust valves, such as Figures 1 to 3 As shown, the device includes a heating furnace 1, which includes multiple heating chambers at different temperatures. A placement platform 2 is provided on one side of the heating furnace 1. Multiple storage racks 3 are arranged circumferentially on the top of the placement platform 2. A fixed frame 4 is provided above the heating furnace 1 and the placement platform 2. Two parallel hoisting mechanisms 5 are provided on the top of the fixed frame 4. A drive gear is connected to the top of the placement platform 2 through a one-way ratchet mechanism. A rack that meshes with the drive gear is slidably connected to the inner wall of the fixed frame 4, and a spring is connected to the rack and the fixed frame 4.

[0027] The storage rack 3 comprises a frame 6 and a plurality of limiting rods 7 vertically arranged and fixed to the inner wall of the frame 6, a plurality of limiting rods 8 are transversely and slidably connected to the inner wall of the frame 6, the limiting rods 8 are oppositely arranged with the limiting rods 7, a plurality of limiting placing grooves 10 are parallelly formed on the top surface of the limiting rods 7 and the limiting rods 8, two adjacent limiting placing grooves 10 are arranged in a staggered manner, a hanging rack 9 is fixed to the top of the frame 6, a plurality of connecting plates 11 are fixed to the outer wall of the frame 6, a screw rod 13 is rotatably connected to the inner wall of the connecting plate 11, and a connecting block 12 is connected to one side of the limiting rod 8 and threadedly matched with the outer wall of the screw rod 13.

[0028] During heat treatment, the valve is placed in the limiting placing groove 10, and the two adjacent limiting placing grooves 10 are arranged in a staggered manner, so that the overall weight balance of the storage rack 3 can be maintained under the limitation of the shape of the valve, and the storage rack 3 is prevented from tilting during hoisting due to the excessive weight on one side. The hoisting mechanism 5 hoists the storage rack 3 on the placing table 2 into the heating cavity of the heating furnace 1 for heat treatment. The valve is subjected to multi-temperature heat treatment by being sequentially brought into the heating cavities of the heating furnace 1 with different temperatures. When the hoisting mechanism 5 moves away from the placing table 2, the spring is compressed and deformed, and the driving gear is driven to rotate. At this time, the placing table 2 does not rotate with the driving gear. When the hoisting mechanism 5 moves away from the placing table 2, the valve can be placed in the limiting placing groove 10 on the limiting rod 8 and the limiting rod 7 due to the different lengths of the valve.

[0029] By arranging the storage rack 3, the valve can be limited and placed. By arranging the two adjacent limiting placing grooves 10 in a staggered manner, the overall weight balance of the storage rack 3 can be maintained under the limitation of the shape of the valve, and the storage rack 3 is prevented from tilting during hoisting due to the excessive weight on one side.

[0030] By arranging the connecting plate 11, the connecting block 12 and the screw rod 13, the distance between the limiting rod 8 and the limiting rod 7 can be adjusted according to the length of the valve, so that the valve can be placed in the limiting placing groove 10 on the limiting rod 8 and the limiting rod 7. Embodiment 2

[0031] The intake and exhaust valve multi-temperature heat treatment equipment, based on the embodiment 1, is improved as follows: Figure 1 , Figure 4As shown, the lifting mechanism 5 comprises a moving plate 14 and a driving mechanism I 15, the moving plate 14 is slidingly fitted on the top outer wall of the fixed frame 4, the top of the moving plate 14 is provided with the driving mechanism I 15, the driving mechanism I 15 is any power mechanism such as motor-movable wheel for driving the moving plate 14 to move along the fixed frame 4, the bottom outer wall of the moving plate 14 is fixedly provided with a guide frame 16, the inner wall of the guide frame 16 is rotatably connected with a lead screw 18, the outer wall of the guide frame 16 is provided with a rotating motor for driving the lead screw 18 to rotate, the inner wall of the guide frame 16 is slidingly fitted with an L-shaped rod 17, the L-shaped rod 17 is threadedly fitted with the lead screw 18, the bottom outer wall of the L-shaped rod 17 is fixedly provided with a mounting frame 19, the bottom outer wall of the mounting frame 19 is rotatably connected with a threaded rod 22, one side of the threaded rod 22 is provided with a guide rod 21 parallel to the threaded rod 22, the outer wall of the threaded rod 22 is threadedly fitted with a lifting frame 23, the lifting frame 23 is slidingly fitted with the guide rod 21, one side of the bottom of the lifting frame 23 is fixedly provided with a hook, the lifting frame 23 is slidingly fitted with the guide rod 21, the top outer wall of the mounting frame 19 is provided with a driving mechanism II 20 for driving the threaded rod 22 to rotate, the driving mechanism II 20 can be a motor-bevel gear right-angle transmission mechanism.

[0032] When lifting the storage rack 3, the driving mechanism I 15 drives the moving plate 14 to move towards the placing table 2, at this time the hook at the bottom of the lifting frame 23 is lower than the top end height of the hanging frame 9, when the hook moves below the top end of the hanging frame 9, the driving mechanism II 20 drives the threaded rod 22 to rotate, so that the lifting frame 23 moves upwards along the threaded rod 22 and the guide rod 21, and the storage rack 3 is lifted upwards, then the moving plate 14 moves towards the heating furnace 1, and the storage rack 3 is lifted to above the heating cavity of the heating furnace 1, then the driving mechanism II 20 drives the threaded rod 22 to move in the opposite direction, so that the storage rack 3 is placed in the heating cavity, since there are multiple storage racks 3 in the heating furnace 1 for carrying valves for heat treatment, when one lifting mechanism 5 lifts the storage rack 3, the other lifting mechanism 5 works synchronously, so that the work efficiency is improved, when the two lifting mechanisms 5 meet, the driving motor drives the lead screw 18 to rotate, so that the L-shaped rod 17 drives the lifting frame 23 to move to both sides of the fixed frame 4, and the lifting frame 23 moves to avoid each other.

[0033] By providing two lifting mechanisms 5, two storage racks 3 can be lifted at the same time, and the lifting speed of the storage rack 3 is improved.

[0034] Working principle: during heat treatment, the valve is placed in the limiting placing groove 10, by setting the two adjacent limiting placing grooves 10 staggered, the overall weight balance of the storage rack 3 can be maintained under the limitation of the shape of the valve itself to avoid the storage rack 3 tilting during lifting due to the overloading on one side, the driving mechanism I 15 drives the moving plate 14 to move towards the placing table 2, at this time the hook at the bottom of the lifting frame 23 is lower than the top end of the hanging frame 9, when the hook moves below the top end of the hanging frame 9, the driving mechanism II 20 drives the threaded rod 22 to rotate, so that the lifting frame 23 moves upwards along the threaded rod 22 and the guide rod 21, and the storage rack 3 is lifted upwards, then the moving plate 14 moves towards the heating furnace 1, and the storage rack 3 is lifted to above the heating cavity of the heating furnace 1, then the driving mechanism II 20 drives the threaded rod 22 to move reversely, so that the storage rack 3 is placed in the heating cavity, since there are multiple storage racks 3 in the heating furnace 1 to carry the valve for heat treatment, when one lifting mechanism 5 lifts the storage rack 3, the other lifting mechanism 5 works synchronously, so that the working efficiency is improved, when the two lifting mechanisms 5 intersect, the driving motor drives the screw rod 18 to rotate, so that the L-shaped rod 17 drives the lifting frame 23 to move to the two sides of the fixed frame 4 to avoid each other, by making the storage rack 3 carrying the valve enter the multiple heating cavities of different temperatures in the heating furnace 1 in turn, the valve is subjected to multi-temperature heat treatment, when the lifting mechanism 5 moves away from the placing table 2, the rack is squeezed, the spring is compressed and deformed, and the driving gear is driven to rotate, at this time the placing table 2 does not rotate with the driving gear, when the lifting mechanism 5 moves away from the placing table 2; since there are multiple valves with different lengths, when the length of the valve to be heat treated is different from the length between the limiting rod two 8 and the limiting rod one 7 in the storage rack 3, the screw rod 13 can be rotated to drive the connecting block 12 to move along the screw rod 13, so that the distance between the limiting rod two 8 and the limiting rod one 7 is changed, so that the valve can be placed in the limiting placing groove 10 on the limiting rod two 8 and the limiting rod one 7.

[0035] The above merely describes the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. Intake and exhaust valve multi-temperature zone heat treatment apparatus comprising a heating furnace (1), characterized in that, The heating furnace (1) one side is provided with the placing table (2), the placing table (2) top annular circumferential direction is provided with a plurality of material storage racks (3), the material storage rack (3) includes frame (6) and a plurality of limit rod one (7), a plurality of limit rod one (7) vertical arrangement is fixed in the inner wall of frame (6), the inner wall of frame (6) is horizontally connected with a plurality of limit rod two (8), the limit rod two (8) is opposite to the limit rod one (7), the limit rod one (7) and the limit rod two (8) top surface parallelly open a plurality of limit placement grooves (10), the adjacent two limit placement grooves (10) are misaligned, the frame (6) top is fixed with the hanger (9), the frame (6) one side outer wall is fixed with a plurality of connecting plates (11), the connecting plate (11) inner wall is rotatably connected with screw rod (13), the limit rod two (8) one side is connected with connecting block (12), the connecting block (12) and screw rod (13) outer wall thread cooperation.

2. The intake and exhaust valve multi-temperature zone thermal processing apparatus of claim 1 wherein, The heating furnace (1) includes a plurality of different temperature heating cavities, the heating furnace (1) and the placing table (2) are provided with the same fixed frame (4) above, the fixed frame (4) top is provided with two parallel hoisting mechanisms (5).

3. The intake and exhaust valve multi-temperature zone thermal processing apparatus of claim 2 wherein, The hoisting mechanism (5) includes a moving plate (14) and a driving mechanism (15), the moving plate (14) is slidably connected to the top outer wall of the fixed frame (4), and the moving plate (14) is provided with the driving mechanism (15) on the top.

4. The intake and exhaust valve multi-temperature zone thermal processing apparatus of claim 3 wherein, The bottom outer wall of the moving plate (14) is fixed with a guide frame (16), the inner wall of the guide frame (16) is rotatably connected with a lead screw (18), and the outer wall of the guide frame (16) is provided with a rotating motor for driving the rotation of the lead screw (18).

5. The intake valve and exhaust valve multi-zone thermal processing apparatus of claim 4, wherein, The inner wall of the guide frame (16) is slidably connected with an L-shaped rod (17), and the L-shaped rod (17) is threadedly connected with the lead screw (18).

6. The intake valve and exhaust valve multi-zone thermal processing apparatus of claim 5, wherein, The bottom outer wall of the L-shaped rod (17) is fixed with a mounting frame (19), the bottom outer wall of the mounting frame (19) is rotatably connected with a threaded rod (22), and the threaded rod (22) is provided with a guide rod (21) parallel to the threaded rod (22) on one side.

7. The intake valve and exhaust valve multi-zone thermal processing apparatus of claim 6, wherein, The outer wall of the threaded rod (22) is threadedly connected with a lifting frame (23), the lifting frame (23) is slidably connected with the guide rod (21), and the lifting frame (23) is fixed with a hook on one side of the bottom. The outer wall of the threaded rod (22) is threadedly connected with a lifting frame (23), the lifting frame (23) is slidably connected with the guide rod (21), and the lifting frame (23) is fixed with a hook on one side of the bottom. The top outer wall of the mounting frame (19) is provided with a driving mechanism (20) for driving the rotation of the threaded rod (22).

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