Quenching device special for piston

Abstract

The utility model relates to a special quenching device for a piston, which comprises a material frame main body, a support frame, a connecting vertical rod, a support transverse pipe and a hoisting component, the support frame is arranged at the upper part of the material frame main body, and the support frame and the material frame main body are arranged in parallel; the supporting frame is arranged on the material frame body and connected with the material frame body through the connecting vertical rods, a hoisting component used for hoisting a piston is installed on the supporting frame and comprises a plurality of sets of supporting plates, and every two oppositely-arranged supporting plates form a set of supporting plates. The device has the advantages that the stability of the quenching performance of piston products can be effectively improved, the production cost of repeated heat treatment is greatly reduced, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to a quenching device specially used for a piston, belonging to the technical field of heat treatment tooling. Background Art

[0002] An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines, external combustion engines, electric motors, etc. Its applications basically cover all fields related to mechanical equipment. Among them, the engine piston is an important component of the engine, and its quality will directly affect the service life of the engine. In order to obtain excellent mechanical properties and improve product quality, piston products usually need to undergo heat treatment processes such as solid solution quenching and aging.

[0003] In existing industrial production, the solid solution quenching heat treatment process of piston products is usually completed in a vertical quenching furnace. The vertical quenching furnace is generally composed of a furnace body, a furnace door, a heating element, a ventilation mechanism and a control system. A water pool is provided at the bottom of the furnace body so that the workpiece can enter the water pool for quenching treatment in a short time. The solid solution quenching heat treatment process of piston products mainly includes: feeding, solid solution, material transfer, quenching, and material discharge. In order to facilitate the transportation of piston products, increase the quenching furnace loading capacity, and achieve cost reduction and efficiency improvement for enterprises, it is usually necessary to design a special material holding device for piston products. When feeding, the device containing the piston product is placed on the special material tray of the quenching furnace. The material tray is hoisted to the top of the mobile platform of the quenching furnace by a crane. After the mobile platform moves to the bottom of the furnace door, the furnace door is opened, and the material tray is hoisted into the furnace with a material hook. After the furnace door is closed, solid solution treatment is carried out. When transferring materials, the furnace door is opened, and the material tray is lowered to the water pool, and then quenching treatment is carried out.

[0004] When using the existing piston quenching material holding device for quenching, the following problems exist: after multiple heat treatments, the chassis of the material holding device is prone to different degrees of depression, so there will be a certain degree of gap between the bottom of the piston and the contact area of ​​the chassis of the material holding device. After entering the water, the water enters the gap and cannot be circulated well, resulting in excessively high local water temperature in the gap, uneven heating of the bottom of the piston product, and uneven hardness of the bottom of the piston, so that re-heat treatment is required, which is time-consuming and labor-intensive, seriously affecting the production efficiency of the piston product and greatly increasing the production cost. Utility Model Content

[0005] In order to overcome the defects of the prior art, the utility model provides a quenching device specially used for pistons. The technical solution of the utility model is:

[0006] A quenching device specially used for pistons, comprising a material frame body, a support frame, connecting vertical rods, a supporting cross tube and a hanging component, wherein the supporting frame is arranged on the upper part of the material frame body, the supporting frame and the material frame body are arranged parallel to each other, and are connected to the material frame body through a plurality of connecting vertical rods, and a hanging component for hanging the piston is installed on the supporting frame, and the hanging component comprises an array of support plates, and every two oppositely arranged support plates form a group of support plates; a clamping groove for connecting with the supporting frame is arranged at the bottom of each of the support plates, and a V-shaped groove is formed at the top, and a fixing frame is respectively installed on both sides of the support plates, and the fixing frame is connected to the support plate and the supporting frame through bolts; a supporting cross tube is placed between the two oppositely arranged support plates, and one end of the supporting cross tube is inserted into the V-shaped groove of one of the support plates, and the other end is inserted into the V-shaped groove of the other support plate.

[0007] A support leg is detachably installed at the bottom of the material frame body, and a plurality of height adjustment blocks are installed on the material frame body. Each height adjustment block corresponds to one of the support legs, and an adjustment slot is provided on the support leg. After the height adjustment block is placed in the adjustment slot, the support leg and the height adjustment block are connected together by an adjusting bolt.

[0008] A lifting ring is installed on the support frame, and a plurality of the lifting rings are evenly distributed on the support frame.

[0009] The opening angle of the V-shaped groove on the support plate is 90-120°, and the height is 20-50 cm.

[0010] A gap is formed between two support plates located on the same side of the support frame.

[0011] The supporting transverse tube is a round tube.

[0012] The material frame body is formed by welding stainless steel square steel.

[0013] The utility model has the advantages of effectively improving the stability of the quenching performance of piston products, greatly reducing the production cost of repeated heat treatment, and effectively improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0015] Figure 2 yes Figure 1 Schematic diagram of the connection relationship between the middle support frame and the lifting components.

[0016] Figure 3 yes Figure 2 Top view of the .

[0017] Figure 4 yes Figure 1 Right view of .

[0018] Figure 5 yes Figure 4 BB cross-sectional view. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with specific embodiments, and the advantages and features of the present invention will become clearer as the description proceeds. However, these embodiments are merely exemplary and do not constitute any limitation to the scope of the present invention. It should be understood by those skilled in the art that the details and forms of the technical solution of the present invention may be modified or replaced without departing from the spirit and scope of the present invention, but these modifications and replacements fall within the scope of protection of the present invention.

[0020] See also Figures 1 to 5 The utility model relates to a quenching device specially used for pistons, including a material frame body 5, a support frame 1, a connecting rod 7, a supporting cross tube 6 and a hanging component. The support frame 1 is arranged on the upper part of the material frame body 5. The support frame 1 and the material frame body 5 are arranged in parallel with each other, and are connected to the material frame body 5 through a plurality of connecting rods 7. All the connecting rods 7 are evenly distributed between the material frame body 5 and the support frame 1. A hanging component for hanging a piston 9 is installed on the support frame 1. The hanging component includes an array of pallets 3, and every two pallets arranged opposite to each other form a group of pallets 3; the bottom of each pallet 3 is provided with a member for hanging with the support frame The connected card slot forms a V-shaped groove on the top (for accommodating the supporting cross tube 6), and a fixing frame 4 is installed on both sides of the support plate 3, and the fixing frame 4 is connected to the support plate 3 and the support frame 1 by bolts; a supporting cross tube (for supporting the piston 9, and several pistons 9 can be mounted on each supporting cross tube 6) is placed between the two oppositely arranged support plates 3, and one end of the supporting cross tube 6 is placed in the V-shaped groove of one of the support plates 3, and the other end is placed in the V-shaped groove of the other support plate 3, wherein a spacing is formed between the two support plates 3 on the same side of the support frame 1 to reserve space for placing the piston, and the supporting cross tube is a round tube; the material frame body is welded by stainless steel square steel.

[0021] A support leg 8 is detachably installed at the bottom of the material frame body 5, and several height adjustment blocks are installed on the material frame body 5. Each height adjustment block corresponds to one of the support legs. An adjustment slot is provided on the support leg 8. After the height adjustment block is placed in the adjustment slot, the support leg 8 is connected to the height adjustment block by adjusting bolts. The overall height of the support frame 1 is adjusted by the height of the height adjustment block in the adjustment slot.

[0022] In order to facilitate lifting, a lifting ring 2 is installed on the support frame 1, and several lifting rings 2 are evenly distributed on the support frame 1.

[0023] The opening angle of the V-groove on the support plate 3 is 90-120°, preferably 100°; the height of the support plate 3 is 20-50cm, preferably 30cm, which can effectively control the back and forth rotation of the supporting cross tube. The spacing between the support rods is arranged according to the production conditions of the products, and the number of rows can be selected according to the outer diameter size of the piston. At the same time, the production of φ300 outer diameter pistons (6 steel pipes) to φ190 outer diameter pistons (8 steel pipes) can be taken into account.

[0024] The working principle of the utility model is:

[0025] The first step is to insert the round tube into the middle pin hole of the piston; the second step is to fix the lifting chain at the appropriate positions at both ends of the round tube, and use the crane for transportation. When the round tube is placed on the support plate of the material frame body, the piston is suspended in the air; the third step is to use the lifting hook to hook the lifting ring, the lifting ring drives the support frame, and the support frame drives the material frame body, and the utility model device is placed as a whole on the special material tray of the quenching furnace through the crane transportation; the fourth step is to operate the quenching furnace control system to make the utility model device enter the quenching furnace for solid solution treatment; the fifth step is to operate the quenching furnace control system after the solid solution treatment is completed, so that the utility model device is lowered into the quenching water pool, so that all parts of the piston are effectively in contact with water, and quenching treatment is carried out. Since the utility model device can make the piston suspended in the air and realize the effective contact between all parts of the piston and water, the overall hardness of the piston is stable and uniform, which can effectively improve the stability of the quenching performance of the piston product.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A quenching device specially used for pistons, characterized in that: It includes a material frame body, a support frame, connecting vertical rods, a support cross tube and a hanging component. The support frame is arranged on the upper part of the material frame body, the support frame and the material frame body are arranged parallel to each other, and are connected to the material frame body through several connecting vertical rods. A hanging component for hanging the piston is installed on the support frame, and the hanging component includes an array of support plates, and every two oppositely arranged support plates form a group of support plates; a card groove for connecting with the support frame is arranged at the bottom of each of the support plates, and a V-shaped groove is formed at the top; a fixing frame is respectively installed on both sides of the support plate, and the fixing frame is connected to the support plate and the support frame through bolts; a support cross tube is placed between the two oppositely arranged support plates, one end of the support cross tube is inserted into the V-shaped groove of one of the support plates, and the other end is inserted into the V-shaped groove of the other support plate.

2. The quenching device specially used for pistons according to claim 1, characterized in that: A support leg is detachably installed at the bottom of the material frame body, and a plurality of height adjustment blocks are installed on the material frame body. Each height adjustment block corresponds to one of the support legs, and an adjustment slot is provided on the support leg. After the height adjustment block is placed in the adjustment slot, the support leg and the height adjustment block are connected together by an adjusting bolt.

3. The quenching device specially used for pistons according to claim 1 or 2, characterized in that: A lifting ring is installed on the support frame, and a plurality of the lifting rings are evenly distributed on the support frame.

4. The quenching device specially used for pistons according to claim 3, characterized in that: The opening angle of the V-shaped groove on the support plate is 90-120°, and the height is 20-50 cm.

5. The quenching device specially used for pistons according to claim 4, characterized in that: A gap is formed between two support plates located on the same side of the support frame.

6. The quenching device specially used for pistons according to claim 5, characterized in that: The supporting transverse tube is a round tube.

7. The quenching device specially used for pistons according to claim 4, characterized in that: The material frame body is formed by welding stainless steel square steel.

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