Bevel gear heat treatment device
By adopting the design of the first and second assembly trays in the bevel gear heat treatment assembly, the fixing pins and positioning holes ensure uniform heating of the bevel gear during carburization and quenching, solving the complex structure and operation in the prior art. The problems of high difficulty and high energy consumption improve the uniformity and mechanical strength of heat treatment.
Patent Information
- Application Number
- CN202421208400.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-05-30
AI Technical Summary
During carburizing and quenching, existing bevel gear heat treatment equipment has complex structure, high operation difficulty and high energy consumption, resulting in uneven carburizing and low quenching hardness of transmission gears, which reduces production efficiency.
By adopting a design including a first loading material tray and a second loading material tray, through holes are arranged on the second loading material tray, and through holes and fixing pins are arranged on the first loading material tray, the gears are arranged on the fixed On the pin, fit the positioning hole and positioning shaft to ensure that the gear is heated evenly during heat treatment and improve mechanical strength.
The uniformity and mechanical strength of bevel gear heat treatment are achieved, the gear swing is reduced, and the quality and production efficiency of heat treatment are improved.
Smart Images
Figure CN222362145U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bevel gear heat treatment equipment, and in particular relates to a bevel gear heat treatment fixture. Background Art
[0002] When carburizing and quenching gears or bevel gears, they are generally placed flat. When carburizing and quenching transmission gears, one side of the transmission gear is in contact with the placement table when placed flat, resulting in uneven carburizing of the contact surface, shallow carburizing layer and low quenching hardness, thereby reducing the quality of the carburizing and quenching heat treatment of the transmission gear.
[0003] Chinese patent application number 2023214584991, the patent name "A furnace carburizing and quenching heat treatment fixture" discloses components such as a rotating shaft, a sleeve and a tightening assembly. The transmission gear is placed upright by fitting it on the surface between two arc-shaped plates. Secondly, when the furnace door is closed, the upright transmission gear is tightened and fixed by the cooperation of the tightening assembly, sleeve, positioning sleeve and rotating shaft. Finally, the fixed transmission gear is driven to rotate by the servo motor, so that the surface carburization on both sides of the transmission gear is more uniform during carburizing heat treatment. Existing heat treatment fixtures need to be equipped with tightening assemblies, sleeves, positioning sleeves and rotating shafts, and the transmission gear is driven to rotate by a motor. The structure is complex, the operation is difficult, the energy consumption is high, and the production efficiency is low. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a bevel gear heat treatment fixture.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a bevel gear heat treatment fixture, including a first fixture tray and a second fixture tray, the second fixture tray is adapted to the first fixture tray; a plurality of second through holes are evenly arranged on the second fixture tray; a plurality of first through holes are arranged on the first fixture tray, and a plurality of fixing pins are evenly arranged on the first fixture tray and between the first through holes. When working, the first fixture tray is placed on the second fixture tray, and the gears are passed through the fixing pins.
[0006] Preferably, a plurality of the first through holes are evenly distributed on the first fixture tray, the first through holes are hexagonal through holes, a fixing pin is arranged at the intersection of three adjacent first through holes, and three fixing pins are arranged corresponding to the same hexagonal through hole, and the three fixing pins are arranged at intervals at the six corner points of the hexagonal through hole.
[0007] Preferably, a plurality of the first through holes are evenly distributed on the first fixture tray, the first through holes are square through holes, two fixing pins are correspondingly arranged for the same square through hole, and the two fixing pins are respectively arranged at diagonal points of the square through hole.
[0008] Preferably, a plurality of the first through holes are evenly distributed on the first fixture tray, the first through holes are equilateral triangle through holes, and one fixing pin is arranged at the intersection of six adjacent first through holes.
[0009] Preferably, the fixing pin is a three-pronged fixing pin.
[0010] Preferably, at least one group of lifting ears is arranged on the first fixture tray, and each group of lifting ears includes two symmetrically arranged lifting ears.
[0011] Preferably, a first positioning hole is provided on the second fixture tray, and a positioning shaft is provided in the first positioning hole; and a second positioning hole corresponding to the first positioning hole is provided on the first fixture tray.
[0012] Preferably, the first fixture tray and the second fixture tray are rectangular trays, the second fixture tray is provided with first positioning holes at four corner points, a positioning axis is provided in the first positioning hole; and positioning arc-shaped notches corresponding to the first positioning holes are provided at four corner points on the first fixture tray.
[0013] This application has the following beneficial effects:
[0014] By setting a first fixture tray and a second fixture tray, the second fixture tray is evenly provided with a plurality of second through holes, the first fixture tray is provided with a plurality of first through holes, and the first fixture tray is evenly provided with a plurality of fixing pins between the first through holes. When working, the first fixture tray is placed on the second fixture tray, and the gears are passed through the fixing pins. By coordinating the first through holes, the second through holes, and the fixing pins, the plane space of the first fixture tray can be maximized, and the gear gap can be made consistent, ensuring the uniformity of heat treatment and preventing multiple gears from swinging on the first fixture tray. By setting the second fixture tray, the second fixture tray supports the first fixture tray, thereby improving the mechanical strength of the heat treatment fixture. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the heat treatment fixture of the utility model;
[0016] Figure 2 It is a schematic diagram of the first loading tray of the utility model;
[0017] Figure 3 It is a schematic diagram of the second loading tray of the utility model;
[0018] Figure 4 This is a schematic diagram of the principle of the second arrangement of the fixing pins of the utility model;
[0019] Figure 5 This is a schematic diagram of the principle of the third arrangement of the fixing pins of the utility model.
[0020] In the figure: a first fixture tray 1, a second fixture tray 2, a first through hole 3, a second through hole 4, a reinforcing rib 5, a fixing pin 6, a lifting ear 7, a first positioning hole 8, and a positioning arc-shaped notch 9. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.
[0022] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0023] like Figure 1-5 As shown, the utility model discloses a bevel gear heat treatment fixture, including a first fixture tray 1 and a second fixture tray 2, wherein the second fixture tray 2 is adapted to the first fixture tray 1; a plurality of second through holes 4 are evenly arranged on the second fixture tray 2; a plurality of first through holes 3 are arranged on the first fixture tray 1, and a plurality of fixing pins 6 are evenly arranged on the first fixture tray 1 and between the first through holes 3. When working, the first fixture tray 1 is placed on the second fixture tray 2, and the gears are passed through the fixing pins 6. Preferably, the first through holes 3 and the second through holes 4 are staggered. The second fixture tray 2 is arranged below the first fixture tray 1, and the second fixture tray 2 supports the first fixture tray 1, thereby improving the mechanical strength of the heat treatment fixture.
[0024] In order to improve the mechanical strength of the heat treatment fixture, reinforcing ribs 5 may be provided on the first fixture tray 1, and the thickness of the reinforcing ribs 5 is the same as that of the first fixture tray 1. Similarly, reinforcing ribs 5 may also be provided on the second fixture tray 2.
[0025] This application provides three specific arrangements of the fixing pin 6, as follows:
[0026] The first implementation method, such as Figure 2 As shown, a plurality of the first through holes 3 are evenly distributed on the first fixture tray 1, the first through holes 3 are hexagonal through holes, a fixing pin 6 is arranged at the intersection of three adjacent first through holes 3, and three fixing pins 6 are arranged corresponding to the same hexagonal through hole, and the three fixing pins 6 are arranged at intervals at the six corner points of the hexagonal through hole.
[0027] The second implementation method, such as Figure 4 As shown, a plurality of the first through holes 3 are evenly distributed on the first fixture tray 1, the first through holes 3 are square through holes, and two fixing pins 6 are correspondingly arranged for the same square through hole, and the two fixing pins 6 are respectively arranged at the diagonal points of the square through hole.
[0028] The third implementation method, such as Figure 5 As shown, a plurality of the first through holes 3 are evenly distributed on the first fixture tray 1 , the first through holes 3 are equilateral triangle through holes, and a fixing pin 6 is arranged at the intersection of six adjacent first through holes 3 .
[0029] The preferred technical solution, the first embodiment can maximize the use of the plane space of the first fixture tray 1, and can make the gear gap consistent, thereby ensuring the uniformity of heat treatment.
[0030] In a preferred technical solution, the fixing pin 6 is a three-pronged fixing pin 6. In order to prevent the gear from swinging on the first fixture tray 1, the size of the three-pronged fixing pin 6 is roughly the same as the size of the gear center hole, so that the gear can be removed from the fixing pin 6. At the same time, the fixing pin 6 limits the gear to prevent the gear from moving on the first fixture tray 1.
[0031] Furthermore, at least one set of lifting lugs 7 is provided on the first loading tray 1, and each set of lifting lugs 7 includes two symmetrically arranged lifting lugs 7. By providing the lifting lugs 7, it is convenient to remove the first loading tray 1 from the second loading tray. Figure 2 As shown, four lifting ears 7 are arranged in a rectangular array on the first tool tray 1 .
[0032] Furthermore, in order to prevent the first fixture tray 1 from being dislocated from the second fixture tray 2, one embodiment is as follows: the second fixture tray 2 is provided with a first positioning hole 8, and a positioning shaft is provided in the first positioning hole 8; the first fixture tray 1 is provided with a second positioning hole corresponding to the first positioning hole 8. During operation, the two ends of the positioning shaft are respectively inserted into the first positioning hole 8 and the second positioning hole to prevent the first fixture tray 1 from moving on the second fixture tray 2.
[0033] Furthermore, in order to prevent the first fixture tray 1 from being dislocated from the second fixture tray 2, another implementation is as follows: Figure 1 As shown, the first fixture tray 1 and the second fixture tray 2 are rectangular trays, and first positioning holes 8 are provided at the four corners of the second fixture tray 2, and positioning shafts are provided in the first positioning holes 8; and positioning arc-shaped notches 9 corresponding to the first positioning holes 8 are provided at the four corners of the first fixture tray 1. During operation, the two ends of the positioning shaft are respectively inserted into the first positioning holes 8 and the positioning arc-shaped notches 9, and the first fixture tray 1 is prevented from moving on the second fixture tray 2 by positioning the four corners of the first fixture tray 1.
[0034] The working principle of a bevel gear heat treatment fixture: when the gear needs heat treatment, such as the gear carburizing and quenching process, multiple gears are placed on the first fixture tray 1, and the bevel gear heat treatment fixture is placed in the heat treatment process environment. The hot air flow contacts the gears through the first through hole 3 and the second through hole 4, so that the gears are heated evenly, ensuring the consistency of the heat treatment of the workpiece.
[0035] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, modifications, and substitutions made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.
Claims
1. A bevel gear heat treatment fixture, characterized in that: The invention comprises a first fixture material tray (1) and a second fixture material tray (2), wherein the second fixture material tray (2) is matched with the first fixture material tray (1); a plurality of second through holes (4) are evenly arranged on the second fixture material tray (2); a plurality of first through holes (3) are arranged on the first fixture material tray (1); a plurality of fixing pins (6) are evenly arranged on the first fixture material tray (1) and between the first through holes (3); when working, the first fixture material tray (1) is placed on the second fixture material tray (2), and the gears are passed through the fixing pins (6).
2. A bevel gear heat treatment fixture according to claim 1, characterized in that: A plurality of the first through holes (3) are evenly distributed on the first fixture material tray (1); the first through holes (3) are hexagonal through holes; a fixing pin (6) is arranged at the intersection of three adjacent first through holes (3); and three fixing pins (6) are arranged corresponding to the same hexagonal through hole; the three fixing pins (6) are arranged at intervals at six corner points of the hexagonal through hole.
3. The bevel gear heat treatment fixture according to claim 1, characterized in that: A plurality of the first through holes (3) are evenly distributed on the first fixture tray (1); the first through holes (3) are square through holes; two fixing pins (6) are correspondingly arranged in one of the square through holes; the two fixing pins (6) are respectively arranged at diagonal points of the square through holes.
4. The bevel gear heat treatment fixture according to claim 1, characterized in that: A plurality of the first through holes (3) are evenly distributed on the first fixture tray (1); the first through holes (3) are equilateral triangle through holes; and a fixing pin (6) is arranged at the intersection of six adjacent first through holes (3).
5. A bevel gear heat treatment fixture according to any one of claims 1 to 4, characterized in that: The fixing pin (6) is a three-pronged fixing pin.
6. A bevel gear heat treatment fixture according to claim 5, characterized in that: At least one group of lifting ears (7) is arranged on the first fixture tray (1), and each group of lifting ears (7) comprises two symmetrically arranged lifting ears (7).
7. The bevel gear heat treatment fixture according to claim 5, characterized in that: The second fixture tray (2) is provided with a first positioning hole (8), and a positioning shaft is provided in the first positioning hole (8); and the first fixture tray (1) is provided with a second positioning hole corresponding to the first positioning hole (8).
8. The bevel gear heat treatment fixture according to claim 5, characterized in that: The first fixture tray (1) and the second fixture tray (2) are rectangular trays; first positioning holes (8) are arranged at four corner points of the second fixture tray (2); positioning shafts are arranged in the first positioning holes (8); and positioning arc-shaped notches (9) corresponding to the first positioning holes (8) are arranged at four corner points on the first fixture tray (1).