Heat treatment tool for thin-wall gear
By designing a thin-walled gear heat treatment tooling including pallets, gear rods, gear brackets and press plates, the problems of thin-walled gear sliding, contact and drop in existing tooling are solved, and product quality improvement and loading flexibility are achieved.
Patent Information
- Application Number
- CN202421651091.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-12
AI Technical Summary
In existing heat treatment tooling, thin-walled gears have no fixed devices on the bracket, which makes them easy to slide, contact and fall during production movement, affecting product quality, and the gap between products is uncontrollable, the loading quantity is unstable, resulting in deformation and quality problems.
A heat treatment tool for thin-walled gears is designed, including base material trays, pallets, gear rods, gear brackets and pressure plates. Position holes are evenly opened on the pallet, and the gear material rod is vertically inserted into these position holes. The gear bracket is superimposed on the gear material rod in turn. A thin-walled gear is placed on each gear bracket, and there is no contact between the adjacent two thin-walled gears. The pressure plate passes through the column and the gear rod cover on the uppermost thin-walled gear, ensuring that the gear rod remains vertical and reducing skew of the string rod.
Through this tool design, thin-walled gears are not easy to contact and squeeze each other during the tool movement, avoiding bumps and damage, and improving product quality. The modular design allows the use of gear brackets to be flexibly increased or decreased according to the number of thin-walled gears, making the loading convenient and flexible.
Smart Images
Figure CN222809512U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat treatment tooling, in particular to a heat treatment tooling for thin-walled gears. Background Art
[0002] Thin-walled gears are gear rings. During the heat treatment process, not only the various mechanical properties of the teeth need to be improved, but also the various mechanical properties of the inner wall of the hub (annular part) need to be improved. Therefore, during the heat treatment process, it is necessary to ensure the uniformity of the heat treatment of the inner wall of the gear ring.
[0003] In the existing heat treatment tooling, thin-walled gears are stacked layer by layer in a perforated material frame, each bracket is loaded with a layer of product, and the bracket loaded with products is filled with a layer of product. A layer of metal mesh is laid on the product, and then the material is continued to be loaded on the metal mesh, and the process is repeated in sequence.
[0004] Disadvantages of existing tooling: There is no fixing device on the bracket, and the product will slide during the production process, causing contact between products, affecting product quality. In serious cases, the product will fall, causing the furnace to stop and production to stop. In addition, the gap between products is uncontrollable; the loading quantity is unstable; the lower layer of products bears a large weight, which can easily cause the product to deform. The roundness deformation of the inner hole of some products can reach 0.06mm-0.10mm, or even greater. Utility Model Content
[0005] The utility model aims to provide a heat treatment tool for thin-walled gears to solve the problem that in the existing heat treatment tool, due to the lack of a fixing device on the bracket, the thin-walled gears will slide during the production movement, causing the thin-walled gears to contact each other, affecting the product quality. In severe cases, the product falls, resulting in the shutdown of the furnace and the suspension of production.
[0006] The purpose of the utility model can be achieved through the following technical solutions:
[0007] A heat treatment tool for thin-walled gears, comprising a base tray, wherein each edge of the top of the base tray is evenly provided with a plurality of columns, and further comprising:
[0008] A support plate is positioned and installed on the base tray through the column, and a plurality of position holes are evenly opened on the support plate, and adjacent position holes are fixedly connected by a thin plate;
[0009] A plurality of gear rods are respectively and vertically detachably fixedly inserted into the corresponding position holes;
[0010] A plurality of gear brackets are sequentially stacked and sleeved on each of the gear rods, a thin-walled gear is placed on each of the gear brackets, and no two adjacent thin-walled gears are in contact with each other;
[0011] A pressure plate is also evenly provided with a plurality of position holes, and adjacent position holes are fixedly connected by thin plates. The pressure plate passes through the column and the gear rod and covers the uppermost thin-walled gear, and the top end of the gear rod passes through the corresponding position hole on the pressure plate.
[0012] As a further solution of the utility model: the pallet includes a left pallet and a right pallet which are symmetrically laid, and the left pallet and the right pallet are respectively positioned and installed on the base tray through the mounting through holes at the four corners through the columns.
[0013] As a further solution of the utility model: the pressure plate includes a left pressure plate and a right pressure plate which are symmetrically laid, and the four corners of the left pressure plate and the right pressure plate are also provided with mounting holes. The left pressure plate and the right pressure plate respectively pass through the mounting holes at the four corners and cover the uppermost thin-walled gear through the column.
[0014] As a further solution of the utility model: the top ends of two adjacent columns located on the end of the left pressure plate and the end of the right pressure plate are fixedly connected by a connecting buckle.
[0015] As a further solution of the utility model: a flange is arranged at the bottom of the gear rod, and 4-8 ventilation holes are opened on the flange.
[0016] As a further solution of the utility model: the gear bracket includes a chassis and a sleeve, the sleeve is integrally arranged on the top of the chassis, and the sleeve and the chassis are both provided with plug-in through holes matching the gear material rod.
[0017] As a further solution of the utility model: 3-6 notches are evenly formed on the edge of the position hole on the support plate.
[0018] The utility model has the following beneficial effects:
[0019] The utility model evenly opens a plurality of position holes on a support plate, and the gear rods are respectively vertically inserted into the corresponding position holes; the gear brackets are sequentially stacked and sleeved on the gear rods, and a thin-walled gear is placed on each gear bracket, and two adjacent thin-walled gears do not contact each other; the pressing plate passes through the column and the gear rods and covers the uppermost thin-walled gears, so that the gear rods are kept vertical, the shaking of the string rods is reduced, and the thin-walled gears are prevented from contacting and squeezing each other during the movement of the tooling, and the thin-walled gears are prevented from being bumped and damaged, thereby improving the product quality;
[0020] The modular design of the utility model enables the use amount of the gear bracket to be increased or reduced according to the number of thin-walled gears, and the loading is convenient and flexible. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The utility model is further described below in conjunction with the accompanying drawings.
[0022] Figure 1 It is a schematic diagram of the heat treatment tooling structure of a thin-walled gear;
[0023] Figure 2 It is a top view schematic diagram of the support plate structure of the utility model;
[0024] Figure 3 It is a schematic diagram of the gear bracket structure of the utility model.
[0025] In the figure: 1. base tray; 2. support plate; 21. position hole; 211. notch; 22. left support plate; 23. right support plate; 24. mounting through hole; 3. column; 4. pressure plate; 41. left pressure plate; 42. right pressure plate; 5. thin plate; 6. gear rod; 7. gear bracket; 71. chassis; 72. sleeve; 73. plug-in through hole; 8. thin-walled gear; 9. connecting buckle; 10. flange. DETAILED DESCRIPTION
[0026] 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. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] See also Figure 1-3 As shown, an embodiment of the utility model provides a heat treatment tool for thin-walled gears, including a base tray 1, a support plate 2, a gear material rod 6, a gear bracket 7 and a pressure plate 4.
[0028] Among them, Figure 1 As shown, multiple columns 3 are evenly arranged on each edge of the top of the basic material tray 1, and the columns 3 are detachably installed on the top of the basic material tray 1. The support plate 2 passes through the columns 3 and is positioned and installed on the basic material tray 1, as shown in FIG. Figure 2 As shown, a plurality of position holes 21 are evenly opened on the support plate 2, and adjacent position holes 21 are fixedly connected by a thin plate 5 with a thickness of 6-10 mm, and the remaining parts are hollowed out, which not only enhances the strength of the tooling, but also increases the fluidity of the atmosphere and quenching medium during the heat treatment process, so that the thin-walled gear 8 is evenly heated and the product quality is improved.
[0029] like Figure 1As shown, a plurality of gear rods 6 are respectively and vertically detachably fixedly inserted into corresponding position holes 21; a plurality of gear brackets 7 are sequentially stacked and sleeved on each gear rod 6, a thin-walled gear 8 is placed on each gear bracket 7, and there is no contact between two adjacent thin-walled gears 8; the rod portion of the gear rod 6 adopts a Y-shaped triangular design to reduce the weight of the tooling; the gear rod 6 with this structural arrangement has strong applicability and can be used with gear brackets 7 of different specifications; at the same time, the use of the gear rod 6 can be increased or decreased according to the number of thin-walled gears 8 that need to be heat treated, which is convenient and flexible to use.
[0030] like Figure 1 As shown, the pressing plate 4 passes through the column 3 and the gear rod 6 and covers the uppermost thin-walled gear 8. The pressing plate 4 is also evenly provided with a plurality of position holes 21. Preferably, as shown in FIG. Figure 2 As shown, 3-6 notches 211 are evenly arranged on the edge of the position hole 21 to increase the fluidity of the heat treatment atmosphere and the quenching medium and improve the product quality. Adjacent position holes 21 are fixedly connected by a thin plate 5 with a thickness of 6-10mm, and the rest of the parts are hollowed out, which enhances the strength of the tooling, increases the fluidity of the atmosphere and the quenching medium during the heat treatment process, and improves the product quality. The main function of the pressing plate 4 is to keep the gear material rod 6 vertical, reduce the shaking of the string rod, prevent the thin-walled gear 8 from falling, and ensure product quality. Since the pressing plate 4 is not load-bearing, the thickness can be 10-12mm, which reduces the weight of the tooling and saves energy consumption.
[0031] Furthermore, if Figure 1 As shown, the pallet 2 includes a symmetrically laid left pallet 22 and a right pallet 23, and the left pallet 22 and the right pallet 23 are respectively positioned and installed on the base tray 1 through the mounting holes 24 at the four corners through the columns 3. The width of the left pallet 22 and the right pallet 23 is half the length of the entire base tray 1. When loading, two pallets 2 of different specifications can be selected and assembled together according to thin-walled gears 8 of different sizes, which increases the diversity of products produced in the same furnace. In addition, after the pallet 2 is installed, if there is no need to replace the pallet 2, it does not need to be disassembled for subsequent production, which reduces the workload of employees and improves production efficiency.
[0032] It can be understood that in order to match the structure of the support plate 2, the pressure plate 4 is also configured as a symmetrically laid left pressure plate 41 and a right pressure plate 42, and the four corners of the left pressure plate 41 and the right pressure plate 42 are also provided with mounting holes 24. The left pressure plate 41 and the right pressure plate 42 respectively pass through the column 3 through the mounting holes 24 at the four corners and cover the top thin-walled gear 8.
[0033] At this time, if Figure 1 As shown, the top ends of two adjacent columns 3 located at the ends of the left pressure plate 41 and the right pressure plate 42 are fixedly connected by a connecting buckle 9, and the connecting buckle 9 cooperates with the columns 3 to firmly position the left pressure plate 41 and the right pressure plate 42 together.
[0034] Specifically, Figure 1 As shown, a flange 10 is provided at the bottom of the gear rod 6, and 4-8 vent holes are opened on the flange 10 to increase the fluidity of the atmosphere and the quenching medium.
[0035] like Figure 3 As shown, the gear bracket 7 includes a chassis 71 and a sleeve 72. The sleeve 72 is integrally arranged on the top of the chassis 71. The sleeve 72 and the chassis 71 are provided with a plug-in through hole 73 matching the gear rod 6. The gear bracket 7 adopts a three-point positioning and hollow structure to reduce the shaking of the thin-walled gear 8 and increase the fluidity of the atmosphere and quenching medium. The gear bracket 7 is light in weight and can be freely disassembled by one person; it has strong applicability and can produce other matching gears; at the same time, the use of the gear bracket 7 can be increased or decreased according to the number of products. In addition, the multi-step design increases the diversity of applicable products.
[0036] When used specifically:
[0037] Install the column 3 on the base tray 1;
[0038] The left support plate 22 is mounted on the base tray 1 through the column 3;
[0039] According to the number of thin-walled gears 8, install the corresponding number of gear rods 6 on the position holes 21 of the left support plate 22;
[0040] Install the gear bracket 7 into the gear material rod 6;
[0041] Install the thin-walled gear 8 on the corresponding gear bracket 7 through the gear material rod 6;
[0042] Install the thin-walled gear 8 and the gear bracket 7 one by one;
[0043] Fill the position hole 21 on the left support plate 22 with the rear gear rod 6, and cover the left pressure plate 41 on the uppermost layer of the tooling through the gear rod 6 and the column 3;
[0044] Repeat the above steps to install the tooling and thin-walled gear 8 on the right support plate 23;
[0045] After both sides are installed, the connecting buckle 9 is buckled on the two middle columns 3.
[0046] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation. Therefore, it should not be understood as a limitation on the present invention.
[0047] In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0048] The above detailed description of the preferred embodiments of the utility model should not be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.
Claims
1. A heat treatment tool for thin-walled gears, comprising a base tray (1), wherein each edge of the top of the base tray (1) is evenly provided with a plurality of columns (3), characterized in that: Also includes: A support plate (2) is positioned and installed on the base tray (1) through the upright column (3); a plurality of position holes (21) are evenly opened on the support plate (2); adjacent position holes (21) are fixedly connected by a thin plate (5); A plurality of gear rods (6) are respectively and vertically detachably fixedly inserted into the corresponding position holes (21); A plurality of gear brackets (7) are sequentially stacked and sleeved on each of the gear material rods (6), a thin-walled gear (8) is placed on each of the gear brackets (7), and no two adjacent thin-walled gears (8) are in contact with each other; A pressure plate (4) is also provided with a plurality of position holes (21) evenly disposed thereon, and adjacent position holes (21) are fixedly connected by a thin plate (5). The pressure plate (4) passes through the column (3) and the gear rod (6) to cover the uppermost thin-walled gear (8), and the top end of the gear rod (6) passes through the corresponding position hole (21) on the pressure plate (4).
2. The heat treatment tool for thin-walled gears according to claim 1 is characterized in that: The support plate (2) comprises a left support plate (22) and a right support plate (23) which are symmetrically laid, and the left support plate (22) and the right support plate (23) are respectively positioned and installed on the base tray (1) by passing through the mounting through holes (24) at the four corners of the support plate and passing through the uprights (3).
3. The heat treatment tool for thin-walled gears according to claim 2 is characterized in that: The pressure plate (4) includes a left pressure plate (41) and a right pressure plate (42) which are symmetrically laid. The four corners of the left pressure plate (41) and the right pressure plate (42) are also provided with mounting holes (24). The left pressure plate (41) and the right pressure plate (42) respectively pass through the mounting holes (24) at the four corners through the pillars (3) and cover the topmost thin-walled gear (8).
4. The heat treatment tool for thin-walled gears according to claim 3 is characterized in that: The top ends of two adjacent upright posts (3) located at the end of the left pressing plate (41) and the end of the right pressing plate (42) are fixedly connected via a connecting buckle (9).
5. The heat treatment tool for thin-walled gears according to claim 1 is characterized in that: A flange (10) is provided at the bottom of the gear rod (6), and 4-8 ventilation holes are provided on the flange (10).
6. The heat treatment tool for thin-walled gears according to claim 1 is characterized in that: The gear bracket (7) comprises a chassis (71) and a sleeve (72), wherein the sleeve (72) is integrally arranged on the top of the chassis (71), and a plug-in through hole (73) matching the gear material rod (6) is provided inside the sleeve (72) and the chassis (71).
7. A heat treatment tool for thin-walled gears according to any one of claims 1 to 6, characterized in that: The edge of the position hole (21) on the support plate (2) is evenly provided with 3 to 6 notches (211).