Deep well furnace heat treatment lifting appliance for step shaft parts
By designing a deep-well furnace heat treatment spreader for step shaft parts, and using the clamping method of clamp assembly and step shaft structure, the existing spreader has solved the problems of low versatility, high operation difficulty and high safety risks, and achieved the More efficient and safe lifting process.
Patent Information
- Application Number
- CN202420541281.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-03-19
AI Technical Summary
The existing deep-well furnace spreaders are low in versatility, difficult to operate, high operating safety risks, affect production efficiency, increase production costs, and difficult to ensure workpiece stability.
A deep-well furnace heat treatment sling for step shaft parts is designed, using clamp components and step shaft structure, and the workpiece's own gravity and clamping structure are used to achieve hanging, improving stability and versatility.
It improves the stability and versatility of lifting, is easier to operate, is faster to load and unload, is easy to use multiple times, reduces production costs and labor intensity, and improves production efficiency.
Smart Images
Figure CN222433863U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of deep-well furnace hoisting equipment, in particular to a deep-well furnace heat treatment hoisting device used for step shaft parts. Background Art
[0002] The deep well furnace is a heat treatment equipment for large long shaft parts. It is used for normalizing, annealing, quenching and tempering processes of workpieces. During operation, the workpiece needs to be vertically loaded into the furnace for heating to ensure that the workpiece does not deform. Therefore, the well furnace hoist is an indispensable loading and unloading body. The existing well furnace hanging method generally uses a crane hook to lift the workpiece, and the workpiece is placed in the furnace for heat treatment through the hook. In order to facilitate the operation of the hook, methods such as welding a lifting lug at the hanging end of the workpiece or drilling a lifting hole radially are adopted. However, because different workpieces use different hoists, the hoisting handling is more complicated and the operation is not simple enough. In addition, each hoisting can only be used once, which increases production costs. After the hoisting is completed, cutting processing is required, which increases labor intensity and also causes material waste. Moreover, if this method is difficult to process or has poor welding performance, it will also affect the stability of the hoisting, causing the workpiece to move or even fall off, causing the workpiece to deform and damage during the heating process, and even causing serious production accidents.
[0003] Moreover, when the workpiece is out of the furnace, its working temperature is extremely high, reaching more than 1000 degrees Celsius. During the unloading process, the operation is complicated, making it difficult for operators to work, and the operation safety risk is high, which can easily cause production safety accidents.
[0004] Therefore, in order to solve the problems that the existing deep well furnace hoists have low versatility, high operating intensity, low operating safety, affecting production efficiency and increasing production costs, it is now necessary to provide a deep well furnace heat treatment hoist for step shaft parts. Utility Model Content
[0005] The utility model aims to provide a deep-well furnace heat treatment hanger for stepped shaft parts, so as to solve the problems of poor versatility, high operation difficulty, high operation safety risk, inability to quickly load and unload affecting production efficiency, difficulty in ensuring workpiece stability and high production cost of deep-well furnace hangers in the prior art.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] The utility model specifically provides a deep-well furnace heat treatment hanger for stepped shaft parts, including a hanger body, a through hole is provided at the lower end of the hanger body; a clamp assembly is provided below the hanger body, a positioning hole is provided on the upper part of the clamp assembly, the positioning hole and the through hole are arranged opposite to each other, a positioning shaft is movably provided in the positioning hole, the positioning shaft passes through the positioning hole and the through hole, and fixes the clamp assembly to the lower end of the hanger body; the lower end of the clamp assembly is an open structure, and an internal step shaft and an external step shaft are provided at the lower end of the clamp assembly; the internal step shaft is provided on the inner side of the clamp assembly, and is buckled under the step shaft of the part; the external step shaft is provided on the outer side of the clamp assembly, and an adjusting clamp is provided on the external step shaft for fastening the clamp assembly to the step shaft of the part.
[0008] The principles and advantages of this solution are:
[0009] This solution utilizes the workpiece's own gravity and the step shaft structure to clamp the clamp assembly to achieve the hanging of large long-shaft step-type parts of different sizes, improve the stability of the hanging, and can be flexibly adjusted according to the size of the parts. It has high versatility, more flexible operation, and simpler and more convenient loading and unloading. The hanging is clamped by the step shaft structure to avoid the hanging stability affected by the difficult processing or welding performance of the material, and can prevent the workpiece from shifting or falling off during the hanging process, thereby improving the hanging stability and safety. At the same time, the hanger is installed by clamping so that the hanger can be reused, reducing the manufacturing cost of the hanger, and also reducing the labor intensity of cutting processing, reducing the amount of cutting of materials after heat treatment, and reducing material waste, thereby improving production efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the structure of the utility model in the hoisting state;
[0011] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;
[0012] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A. DETAILED DESCRIPTION
[0013] The following is further described in detail through specific implementation methods:
[0014] The figure marks in the drawings of the specification include: sling body 1, through hole 2, clamp assembly 3, positioning hole 4, positioning shaft 5, limit hole 6, internal step shaft 7, external step shaft 8, part step shaft 9, adjustment hoop 10, first clamp 11, second clamp 12.
[0015] The embodiment is basically as shown in the attached Figure 1 and attached Figure 2As shown: A deep well furnace heat treatment hanger for stepped shaft parts, suitable for fast loading and unloading of large long shaft parts with part stepped shaft 9. During the production process, the part stepped shaft 9 can be the part product's own structure, or a structure reserved for hoisting in the later stage. In this embodiment, the deep well furnace heat treatment hanger includes a hanger body 1 that comes with the deep well furnace. The lower end of the hanger body 1 is a long shaft structure. According to the effective operating range of the deep well furnace, a through hole 2 for fixing is opened at the lower end of the hanger body 1, which is convenient for operation and installation, while ensuring the stability and safety of the lower end of the hanger body 1, and can meet the weight bearing capacity of large long shaft parts to avoid dangerous situations such as falling off.
[0016] A clamp assembly 3 is movably installed below the sling body 1. In this embodiment, the clamp assembly 3 is set to a cylindrical structure with a height of 300-600mm, which ensures that the bearing capacity of the weight of the parts can be met, while reducing the risks of deformation and damage, achieving repeated use and reducing production costs. In this embodiment, the upper end of the clamp assembly 3 is set to a sealed structure, the interior is a hollow structure and the lower end is an open structure. The wall thickness of the clamp assembly 3 is set to 30-50mm to ensure the hardness and strength of the clamp assembly 3 and avoid deformation or breakage of the clamp assembly 3 at high temperatures. A positioning hole 4 is radially opened at a position 80-150mm from the top of the clamp assembly 3, so that the positioning hole 4 can be set concentrically with the through hole 2, so that the clamp assembly 3 can be stably installed on the sling body 1, ensuring the bearing capacity of the upper end of the clamp assembly 3 and avoiding breakage or falling off.
[0017] A positioning shaft 5 is radially movably installed in the positioning hole 4, and the positioning shaft 5 passes through the positioning hole 4 and the through hole 2, so that the clamp assembly 3 is fixedly installed on the lower end of the sling body 1. In this embodiment, the positioning shaft 5 adopts a pin shaft made of heat-resistant steel with a length of 500-1000mm and a diameter of 100-200mm to ensure the bearing strength, and can stably fix the clamp assembly 3 on the lower end of the sling body to ensure the safety of the lifting, while also facilitating quick operation. A limiting hole 6 for locking the positioning shaft 5 on the clamp assembly 3 is also installed at the end of the positioning shaft 5. After the positioning shaft 5 passes through the positioning hole 4 and the through hole 2 from one end, the positioning shaft 5 is fixed to the clamp assembly 3 from the other end through the limiting hole 6. In this embodiment, the positioning shaft 5 can also be fixed by threaded matching, which is not limited here.
[0018] As attached Figure 3 As shown, an inner step shaft 7 and an outer step shaft 8 are integrally formed at the lower end of the clamp assembly 3. Figure 2As shown, the internal step shaft 7 is located inside the clamp assembly 3 and can be buckled under the part step shaft 9. In this embodiment, the width of the internal step shaft 7 is 30-60 mm and the height is 30-50 mm, so as to meet the buckling of various part step shafts 9, and the versatility is higher. At the same time, it can be matched with the part step shaft 9 to fix the part, avoid shaking or displacement of the part during the hoisting process, ensure the stability of the part, and avoid deformation of the part at high temperature.
[0019] The external step shaft 8 is located outside the clamp assembly 3 and is arranged opposite to the internal step shaft 7. An adjustment hoop 10 is installed on the external step shaft 8 to fasten the clamp assembly 3 to the part step shaft 9. In this embodiment, the width of the external step shaft 8 is 10-30mm and the height is 30-50mm, so that the adjustment hoop 10 can be stably installed on the clamp assembly 3 to achieve the fastening effect of the clamp assembly 3. At the same time, it can also meet the applicability of various adjustment hoops 10 to achieve the bearing strength of large parts and ensure the stability and safety of the parts. At the same time, in this embodiment, the adjustment hoop 10 is set to a heat-resistant steel hoop with a height of 40-60mm and a thickness of 25-50mm.
[0020] In this embodiment, the clamp assembly 3 uses two relatively combined semicircular first clamps 11 and second clamps 12. The first clamp 11 and the second clamp 12 have the same structure, which is more convenient to operate during installation. At the same time, the diameter size that can be buckled is more flexible, which can meet the hoisting of parts of various sizes, has stronger versatility, and can also ensure the stability of hoisting.
[0021] The specific implementation process is as follows:
[0022] As attached Figure 1 To Attachment Figure 3 As shown, when hoisting large long shaft parts, first determine the step groove diameters of the first clamp 11 and the second clamp 12 according to the step size of the part step shaft 9 to meet the hoisting requirements of the current parts. The upper ends of the internal step shaft 7 of the first clamp 11 and the second clamp 12 are clamped with the lower ends of the part step shaft 9 so that they are buckled under the part step shaft 9. The adjustment clamp 10 is passed through the first clamp 11 and the second clamp 12 to the external step shaft 8, so that the adjustment clamp 10 tightens the first clamp 11 and the second clamp 12 to limit the movement of the clamp assembly 3, thereby fixing the clamp assembly 3 on the part step shaft 9.
[0023] The upper end of the clamp assembly 3 is mounted on the lower end of the sling body 1, so that the positioning hole 4 of the clamp assembly 3 is coaxially arranged with the through hole 2 on the sling body 1, and the positioning shaft 5 is passed through the positioning hole 4 and the through hole 2, and the positioning hole 6 at the corresponding position is selected to fix the positioning shaft 5 through the fixing pin, so that the clamp assembly 3 is mounted on the sling body 1 of the deep well furnace, and the lifting of the parts and the sling body 1 is completed. Finally, the parts are vertically loaded into the furnace through the sling body 1 for heating and other process treatments.
[0024] In this embodiment, the step groove structure of the clamp assembly 3 is set by utilizing the gravity of the parts themselves and the step shaft structure, and the internal step shaft 7 and the part step shaft 9 cooperate with each other to realize the hanging of large long shaft parts of different sizes, thereby improving the versatility of the sling, making the operation simpler and faster, realizing rapid loading and unloading, and improving the lifting efficiency. In addition, the sling has high stability, wide applicability, can be used repeatedly, and reduces the manufacturing cost of the equipment.
[0025] This solution achieves hoisting through clamping, which can avoid the impact of difficult material processing and poor welding performance on hoisting, effectively improve the safety of hoisting work, reduce the labor intensity of cutting processing, and reduce the amount of material removed after heat treatment, thereby improving production efficiency and reducing production costs. In addition, during the hoisting process, it can ensure the stability of parts, prevent parts from displacement, falling off, and avoiding parts deformation.
[0026] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A deep well furnace heat treatment hanger for stepped shaft parts, characterized by: The utility model comprises a sling body, wherein a through hole is provided at the lower end of the sling body; a clamp assembly is provided below the sling body, a positioning hole is provided on the upper part of the clamp assembly, the positioning hole is concentrically arranged with the through hole, a positioning shaft is movably provided in the positioning hole, the positioning shaft passes through the positioning hole and the through hole, and fixes the clamp assembly to the lower end of the sling body; the lower end of the clamp assembly is an open structure, and an internal step shaft and an external step shaft are provided at the lower end of the clamp assembly; the internal step shaft is provided on the inner side of the clamp assembly, and is buckled under the part step shaft; the external step shaft is provided on the outer side of the clamp assembly, and an adjusting clamp is provided on the external step shaft for fastening the clamp assembly to the part step shaft.
2. The deep well furnace heat treatment hanger for stepped shaft parts according to claim 1 is characterized in that: The clamp assembly is a cylindrical structure, and comprises a first clamp and a second clamp that are relatively combined and arranged in a semicircular shape; the first clamp and the second clamp have the same structure.
3. The deep well furnace heat treatment hanger for stepped shaft parts according to claim 1 is characterized in that: The positioning shaft is a pin shaft made of heat-resistant steel with a length of 500-1000mm and a diameter of 100-200mm.
4. The deep well furnace heat treatment hanger for stepped shaft parts according to claim 1 is characterized in that: The inner step shaft is adapted to the part step shaft, and the inner step shaft has a width of 30-60 mm and a height of 30-50 mm.
5. The deep well furnace heat treatment hanger for stepped shaft parts according to claim 1 is characterized in that: The outer step shaft is arranged opposite to the inner step shaft, and the outer step shaft has a width of 10-30 mm and a height of 30-50 mm.
6. The deep well furnace heat treatment hanger for stepped shaft parts according to claim 1, characterized in that: The adjustment hoop is a heat-resistant steel hoop with a height of 40-60 mm and a thickness of 25-50 mm.
7. The deep well furnace heat treatment hanger for stepped shaft parts according to claim 1 is characterized in that: The height of the clamp assembly is 300-600 mm.
8. The deep well furnace heat treatment hanger for stepped shaft parts according to claim 2 is characterized in that: The thickness of the clamp assembly is 30-50 mm.
9. The deep well furnace heat treatment hanger for stepped shaft parts according to claim 1, characterized in that: The positioning hole is arranged at a position 80-150 mm from the top of the clamp assembly.
10. The deep well furnace heat treatment hanger for stepped shaft parts according to claim 1, characterized in that: A limiting hole for fixing the positioning shaft on the clamp assembly is provided at the end of the positioning shaft.