Spiral blade heat treatment device
By designing a spiral blade heat treatment device including a support mechanism and a limiting mechanism, the problems of deformation and dimensional changes of the spiral blade during the heat treatment process are solved, and higher dimensional accuracy and stability are achieved.
Patent Information
- Application Number
- CN202421808631.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The spiral blade is prone to deformation during the heat treatment process, resulting in changes in the inner diameter and pitch, which cannot meet the design requirements, and may even cause scrapping.
A spiral blade heat treatment device is designed, including a base, a support mechanism, an upper limit mechanism and a lower limit mechanism. The support mechanism supports the inner wall of the spiral blade, and the upper limit mechanism and the lower limit mechanism limit the upper and lower sides of the spiral blade respectively to avoid deformation and dimensional changes.
Through this device, the internal diameter changes of the spiral blade can be effectively reduced, the pitch size can be stabilized, the dimensional accuracy after heat treatment can be improved, and deformation and scrapping can be avoided.
Smart Images
Figure CN222821600U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of heat treatment, and in particular relates to a heat treatment device for a spiral blade. Background Art
[0002] Spiral blades usually need to be heat treated to improve their hardness, strength, toughness and wear resistance. Salt bath quenching is a commonly used heat treatment process. Salt bath quenching heats the spiral blade to a certain temperature to austenitize it, and then quickly cools it in a molten salt bath to reach the appropriate temperature to form the required microstructure, so that the spiral blade can achieve the desired effect. Due to the special 3D structural characteristics of the spiral blade, it is very easy to deform during the heating and rapid cooling process, resulting in failure to meet the design requirements, and even causing the spiral blade to be scrapped.
[0003] Therefore, the above problems need to be solved urgently. Utility Model Content
[0004] Purpose of the utility model: In order to overcome the above shortcomings, the utility model provides a spiral blade heat treatment device. After the spiral blade is heat treated, the change in the inner diameter of the spiral blade is reduced, the change in the pitch is reduced, and the dimensional accuracy is improved.
[0005] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides a spiral blade heat treatment device, including a base, the base is rectangular, the top surface of the base is connected to a support mechanism, the support mechanism is arranged in an array along the long side of the base, the top surface of the support mechanism forms a support for the inner diameter of the spiral blade, and the top surface of the support mechanism is connected to an upper limit mechanism. The upper limit mechanism provides a limit for the upper side of the spiral blade. The top surface of the base is connected to a lower limit mechanism, the lower limit mechanism and the support mechanism are arranged at intervals, and the lower limit mechanism provides a limit for the lower side of the spiral blade. When the spiral blade is heat-treated, the spiral blade needs to be placed on this device. At this time, the lower side of the spiral blade is supported by the top surface of the base, and the inner wall of the upper side of the spiral blade is supported by the support mechanism, so as to reduce the change of the inner diameter of the spiral blade during heat treatment and improve the dimensional stability. The upper limit mechanism and the lower limit mechanism limit the left and right directions of the spiral blade respectively, so as to avoid the pitch change caused by heat treatment, stabilize the pitch size during heat treatment, improve the dimensional accuracy, and meet the design requirements.
[0006] Furthermore, in the above-mentioned spiral blade heat treatment device, the upper limit mechanism includes a plurality of upper limit posts, which are vertically arrayed and connected to the top surface of the support mechanism, and the distance between adjacent upper limit posts is the width of the spiral blade. During heat treatment, the upper side of the spiral blade is clamped between the two upper limit posts to improve the structural stability of the spiral blade.
[0007] Furthermore, in the above-mentioned spiral blade heat treatment device, the lower limit mechanism includes a plurality of lower limit posts, which are vertically arrayed and connected to the top surface of the base, and the distance between adjacent lower limit posts is the width of the spiral blade. During heat treatment, the lower side of the spiral blade is clamped between the lower limit posts to improve the structural stability of the spiral blade.
[0008] Furthermore, in the above-mentioned spiral blade heat treatment device, the distance between the rightmost upper limit post and the rightmost lower limit post is the spiral blade pitch. When the upper side of the spiral blade is placed between the upper limit posts, the lower side of the spiral blade is placed between the lower limit posts. The upper and lower blades within each pitch range of the spiral blade are respectively clamped between the upper limit posts and the lower limit posts to avoid deformation of the spiral blade resulting in changes in the pitch, improve the stability of the spiral blade, and improve the dimensional accuracy after heat treatment.
[0009] Furthermore, in the above-mentioned spiral blade heat treatment device, one end of the base is connected to a pad, and the pad is tilted on the top surface of the base. A plurality of starting limit posts are provided on the top surface of the pad. The starting end of the spiral blade is placed on the upper side of the pad, and the starting end of the spiral blade is clamped between the starting limit posts, thereby improving the stability of the starting end of the spiral blade and improving the dimensional stability of the heat treatment.
[0010] Furthermore, in the above-mentioned spiral blade heat treatment device, the distance between adjacent starting limit posts is the width of the spiral blade, and the distance between the rightmost starting limit post and the rightmost upper limit post is the pitch of the spiral blade.
[0011] Furthermore, in the above spiral blade heat treatment device, the support mechanism includes a column and a support portion. The column is vertically connected to the top surface of the base, and the support portion is horizontally connected to an end of the column away from the base.
[0012] Furthermore, in the above-mentioned spiral blade heat treatment device, the support part is a round tube. The round tube-shaped support part fits the inner side of the spiral blade and guides the spiral blade to a straight line to avoid deformation and twisting during the heat treatment process.
[0013] Furthermore, in the above-mentioned spiral blade heat treatment device, the bottom surface of the base is connected with a reinforcing rib. The reinforcing rib is arranged along the long side of the base, and there are two or more reinforcing ribs. The reinforcing rib improves the mechanical strength of the base and reduces deformation during the heat treatment process.
[0014] Furthermore, in the above-mentioned spiral blade heat treatment device, the distance between the lower limit mechanism and the upper limit mechanism is the spiral blade pitch, ensuring that the upper and lower ends of each pitch are restricted to reduce heat treatment deformation.
[0015] It can be seen from the above technical scheme that the utility model has the following beneficial effects: In the utility model spiral blade heat treatment device, the top surface of the base supports the lower side of the spiral blade, and the supporting mechanism supports the upper inner wall of the spiral blade, thereby reducing the change in the inner diameter of the spiral blade. The upper limit mechanism and the lower limit mechanism limit the left and right directions of the spiral blade to avoid pitch changes caused by heat treatment, stabilize the pitch size during heat treatment, and improve dimensional accuracy. The pad supports the starting end of the spiral blade, and the starting end of the spiral blade is clamped between the starting limit columns to improve the stability of the starting end of the spiral blade and improve the dimensional stability of the heat treatment. The circular tubular support portion fits the inner side of the spiral blade and can guide the spiral blade to a straight line to avoid deformation and distortion during heat treatment. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the spiral blade heat treatment device of the utility model;
[0017] Figure 2 This is a front view of the spiral blade heat treatment device of the utility model;
[0018] Figure 3 It is a schematic diagram of the spiral blade structure.
[0019] In the figure: 1. base, 11. lower limit mechanism, 111. lower limit column, 12. pad, 121. start limit column, 13. reinforcing rib, 2. support mechanism, 21. upper limit mechanism, 211. upper limit column, 22. support part, 23. column. DETAILED DESCRIPTION
[0020] Example 1
[0021] like Figure 1A spiral blade heat treatment device shown includes a base 1, which is rectangular. The top surface of the base 1 is connected to a support mechanism 2, which is arranged in an array along the long side of the base 1. The top surface of the support mechanism 2 forms a support for the inner diameter of the spiral blade, and the top surface of the support mechanism 2 is connected to an upper limit mechanism 21. The upper limit mechanism 21 provides a limit for the upper side of the spiral blade. The top surface of the base 1 is connected to a lower limit mechanism 11, which is arranged at intervals from the support mechanism 2, and the lower limit mechanism 11 provides a limit for the lower side of the spiral blade. The distance between the lower limit mechanism 11 and the upper limit mechanism 21 is the spiral blade pitch. A pad 12 is connected to one end of the base 1, and the pad 12 is tilted on the top surface of the base 1. A plurality of starting limit columns 121 are arranged on the top surface of the pad 12. The distance between adjacent starting limit columns 121 is the width of the spiral blade, and the distance between the rightmost starting limit column 121 and the rightmost upper limit column 211 is the spiral blade pitch. The support mechanism 2 includes a column 23 and a support portion 22. The column 23 is vertically connected to the top surface of the base 1, and the support portion 22 is horizontally connected to the end of the column 23 away from the base 1. The support portion 22 is a round tube. The bottom surface of the base 1 is connected with a reinforcing rib 13. The reinforcing rib 13 is arranged along the long side of the base 1, and there are two or more reinforcing ribs 13. The reinforcing rib 13 improves the mechanical strength of the base 1.
[0022] When the spiral blade is heat treated, the spiral blade is placed on the device, the starting end of the spiral blade is placed on the upper side of the pad 12, the starting end of the spiral blade is clamped between the starting limit posts 121, the lower side of the spiral blade is supported by the top surface of the base 1, and the upper inner wall of the spiral blade is supported by the support mechanism 2. The circular tubular support part 22 fits the inner side of the spiral blade and guides the spiral blade to a straight line. The upper limit mechanism 21 and the lower limit mechanism 11 limit the left and right directions of the spiral blade.
[0023] like Figure 2 In the spiral blade heat treatment device shown, the upper limit mechanism 21 includes a plurality of upper limit posts 211, which are connected to the top surface of the support mechanism 2 in a vertical array, and the distance between adjacent upper limit posts 211 is the width of the spiral blade. The lower limit mechanism 11 includes a plurality of lower limit posts 111, which are connected to the top surface of the base 1 in a vertical array, and the distance between adjacent lower limit posts 111 is the width of the spiral blade. The distance between the upper limit post 211 on the far right and the lower limit post 111 on the far right is the pitch of the spiral blade. When the upper side of the spiral blade is placed between the upper limit posts 211, the lower side of the spiral blade is placed between the lower limit posts 111.
[0024] During heat treatment, the upper side of the spiral blade is clamped between the two upper limit posts 211, and the lower side of the spiral blade is clamped between the lower limit posts 111. The upper and lower blades within each pitch range of the spiral blade are respectively clamped between the upper limit posts 211 and the lower limit posts 111.
[0025] The above embodiments are exemplary, and their purpose is to illustrate the technical concept and features of the utility model so that people familiar with this field can understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. A spiral blade heat treatment device, characterized in that: The invention comprises a base (1), wherein the base (1) is rectangular, the top surface of the base (1) is connected to a support mechanism (2), the support mechanism (2) is arranged in an array along the long side of the base (1), the top surface of the support mechanism (2) forms support for the inner diameter of a spiral blade, the top surface of the support mechanism (2) is connected to an upper limit mechanism (21); the upper limit mechanism (21) provides a limit for the upper side of the spiral blade; the top surface of the base (1) is connected to a lower limit mechanism (11), the lower limit mechanism (11) is arranged at a distance from the support mechanism (2), and the lower limit mechanism (11) provides a limit for the lower side of the spiral blade.
2. The spiral blade heat treatment device according to claim 1, characterized in that: The upper limit mechanism (21) comprises a plurality of upper limit posts (211), wherein the upper limit posts (211) are connected in a vertical array to the top surface of the support mechanism (2), and the spacing between adjacent upper limit posts (211) is the width of the spiral blade.
3. The spiral blade heat treatment device according to claim 2, characterized in that: The lower limiting mechanism (11) comprises a plurality of lower limiting columns (111), wherein the lower limiting columns (111) are connected to the top surface of the base (1) in a vertical array, and the spacing between adjacent lower limiting columns (111) is the width of the spiral blade.
4. The spiral blade heat treatment device according to claim 3, characterized in that: The distance between the upper limit post (211) on the far right and the lower limit post (111) on the far right is the pitch of the spiral blade; when the upper side of the spiral blade is placed between the upper limit posts (211), the lower side of the spiral blade is placed between the lower limit posts (111).
5. The spiral blade heat treatment device according to claim 1, characterized in that: One end of the base (1) is connected to a pad (12), and the pad (12) is arranged obliquely on the top surface of the base (1); a plurality of starting limit posts (121) are arranged on the top surface of the pad (12).
6. The spiral blade heat treatment device according to claim 5, characterized in that: The distance between adjacent starting limit posts (121) is the width of the spiral blade, and the distance between the rightmost starting limit post (121) and the rightmost upper limit post (211) is the pitch of the spiral blade.
7. The spiral blade heat treatment device according to claim 1, characterized in that: The support mechanism (2) comprises a column (23) and a support portion (22); the column (23) is vertically connected to the top surface of the base (1), and the support portion (22) is horizontally connected to an end of the column (23) away from the base (1).
8. The spiral blade heat treatment device according to claim 7, characterized in that: The support portion (22) is a round tube.
9. The spiral blade heat treatment device according to claim 1, characterized in that: The bottom surface of the base (1) is connected to a reinforcing rib (13); two or more reinforcing ribs (13) are provided.
10. The spiral blade heat treatment device according to claim 1, characterized in that: The distance between the lower limit mechanism (11) and the upper limit mechanism (21) is the pitch of the spiral blade.