A support for improving the stability and efficiency of heat treatment of gears
By adopting a bracket design with a multi-point support structure, the problems of low efficiency and large deformation in gear heat treatment were solved, resulting in increased furnace loading capacity, reduced costs, and improved consistency in part deformation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN PANZHOU PRECISION TECH CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-06-23
AI Technical Summary
In the existing technology, the original parking gear heat treatment efficiency is low and the deformation of the parts is large. Especially under the basket-type layered loading method, the amount of material loaded into the furnace at one time is small, and the deformation of the inner hole of the parts is as large as 8 seconds, which leads to the failure of the go/no-go gauge inspection.
The bracket design adopts a multi-point support structure, including a partition base and heat-conducting columns. The support boss is used to support the gear. The heat-conducting columns are heated together with the parts during heat treatment. During cooling, the outer ring of the parts cools first, while the inner hole cools more slowly. The combination design of the partition base and bracket increases the furnace loading capacity and reduces deformation.
It doubled the amount of heat treatment charge, reduced the cost of heat treatment per piece, ensured good consistency in part deformation, and avoided the problem of non-compliance in go/no-go gauge inspection.
Smart Images
Figure CN224394959U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of parts processing technology, specifically to a bracket for improving the stability and efficiency of gear heat treatment. Background Technology
[0002] The original parking gear heat treatment used a basket-type partition, with the parts placed flat at the bottom of the partition. During quenching, sufficient space needed to be left at the top of the partition to allow the quenching oil to flow quickly in order to cool the surface of the parts in time. However, this method sacrifices space, which reduces the number of parts that can be placed per furnace and makes it less efficient. The parking gear has a disc-shaped structure (Ø110*12.5). Using a conventional basket-type partition resulted in a single furnace loading of only 910 pieces. The experiment of directly stacking the parts for heat treatment resulted in an increase in the deformation of the parts. In addition, more importantly, the basket-type partition method resulted in a large deformation dispersion of the inner hole of the parts after heat treatment, with the maximum deformation dispersion reaching 8s. This caused the go gauge to fail and the no-go gauge to fail simultaneously during the go and no-go gauge inspection. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a support for improving the stability and efficiency of gear heat treatment. The support includes a partition base, a heat-conducting column fixedly installed at the top center of the partition base, the height of which is greater than the height of the gear. Multiple support bosses, evenly distributed in a circle, are fixedly installed on the top of the partition base. The diameter of the circle formed by the support bosses is smaller than the outer diameter of the gear but larger than its inner diameter. A receiving groove is formed at the bottom center of the partition base. The top of the heat-conducting column is chamfered and used to insert into the receiving groove of an adjacent support. The maximum width of the heat-conducting column does not exceed the inner diameter of the gear. The heat-conducting column, the partition base, and the support bosses are integrally formed, and the partition bases are arranged in a rectangular array and fixedly connected to each other.
[0004] As a preferred technical solution of this utility model: there are multiple partition bases, which are arranged in a rectangular array and fixedly connected to each other.
[0005] As a preferred technical solution of this utility model, it also includes several brackets arranged in a rectangular array, each bracket having a partition base fixedly connected inside.
[0006] As a preferred technical solution of this utility model: each of the brackets is provided with three positioning grooves that are respectively adapted to the three ends of the side of the partition base, and the partition base is detachably placed in the bracket through the positioning grooves.
[0007] As a preferred technical solution of this utility model: an inner column is fixedly installed at the top center of the partition base, the bottom of the heat-conducting column is concave and adapted to the inner column, and the heat-conducting column can slide up and down to wrap the inner column.
[0008] As a preferred technical solution of this utility model: the inner column sidewall is provided with several slots on a vertical line, and a locking rod is detachably inserted into the slot.
[0009] As a preferred technical solution of this utility model: the card slots are in multiple sets, and the multiple sets of card slots are distributed at intervals along the circumference of the inner column, with each set of card slots corresponding to a card rod.
[0010] As a preferred technical solution of this utility model: the partition base is formed by three straight rods distributed at equal intervals around the circumference to form a "Y" shape. Each straight rod has a strip groove at its top that is parallel to the length of the straight rod. A slider is movably connected in the strip groove. At least one connecting rod is fixedly installed on the top of the slider. The top of the connecting rod is fixedly connected to the support boss.
[0011] As a preferred technical solution of this utility model: the cross-section of the strip groove is convex, and the width of the slider is greater than the width of the top opening of the strip groove.
[0012] As a preferred technical solution of this utility model, the supporting bosses are three in number and are distributed in a circular shape at equal intervals.
[0013] This utility model has the following beneficial effects:
[0014] By placing the gears on the support boss instead of the original method of placing the gears on the basket-type partition and stacking them, the furnace loading capacity can be doubled, and the processing cost of heat treatment per piece can be reduced. By adopting a multi-point support structure and adding heat-conducting columns at the inner hole, the heat-conducting columns are heated together with the parts during heat treatment. During cooling, the outer ring of the parts cools first, while the inner hole cools more slowly due to the heat-conducting columns, thus resulting in better deformation consistency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure provided by this utility model.
[0016] Figure 2 This is a bottom view of the partition base provided by this utility model.
[0017] Figure 3 This is a schematic diagram of the heat-conducting column structure provided by this utility model.
[0018] Figure 4 This is a top view of the partition base provided by this utility model.
[0019] Figure 5 This is a schematic diagram of the bracket connection provided by this utility model.
[0020] Appendix Figure 1-5 The structures represented by each label are listed below:
[0021] 1. Heat-conducting column; 2. Gear; 3. Support boss; 4. Partition base; 5. Receiving groove; 6. Inner column; 7. Slot; 8. Locking rod; 9. Strip groove; 10. Slider; 11. Connecting rod; 12. Bracket; 13. Positioning groove. Detailed Implementation
[0022] The principles and features of this utility model are described below. The embodiments given are only used to explain this utility model and are not intended to limit the scope of this utility model.
[0023] It should be noted that when a part or component is considered to be "connected to," "located on," or "assembled" to another part or component, it can be directly mounted on the other part or component, or it may be located in an intermediate part or component. The terms "left," "right," "upper," "lower," and similar expressions used in this document are for illustrative purposes only.
[0024] Example 1, as Figure 1-5 As shown, a support for improving the stability and efficiency of gear heat treatment includes a partition base 4, which is Y-shaped. A heat-conducting column 1 is fixedly installed at the top center of the partition base 4. The heat-conducting column 1 is also Y-shaped and its height is greater than that of the gear 2. Multiple support bosses 3 are fixedly installed at equal intervals in a circle on the top of the partition base 4. The diameter of the circle formed by the multiple support bosses 3 is smaller than the outer diameter of the gear 2 but larger than the inner diameter of the gear 2. In this embodiment, there are three support bosses 3. A receiving groove 5 is opened at the bottom center of the partition base 4. The top of the heat-conducting column 1 is chamfered and adapted to the receiving groove 5. The maximum width of the heat-conducting column 1 does not exceed the inner diameter of the gear 2. The heat-conducting column 1, the partition base 4, and the support bosses 3 are integrally formed. Several partition bases 4 are arranged in a rectangular array and fixedly connected to each other. One gear 2 corresponds to one partition base 4. When the gear 2 is placed on the partition base 4, the heat-conducting column 1 passes through the interior of the gear 2, and the bottom of the gear 2 contacts the support bosses 3.
[0025] Specifically, it also includes several brackets 12, each of which is rectangular. Each bracket 12 has a partition base 4 fixedly connected inside it. The three ends of the side of the partition base 4 are fixedly connected to the bracket 12 to make the connection more stable. The brackets 12 are arranged in a rectangular array.
[0026] Example 2, as Figure 1-5As shown in the figure, the difference between this embodiment and the first embodiment is that an inner column 6 is fixedly installed at the center of the top of the partition base 4. The bottom of the heat conduction column 1 is concave and adapted to the inner column 6. The heat conduction column 1 can slide up and down to wrap the inner column 6. A plurality of clamping grooves 7 are formed on the side wall of the inner column 6 in a vertical line. A clamping rod 8 is detachably inserted into the clamping groove 7. The heat conduction column 1 falls by gravity until it contacts the clamping rod 8 and is clamped by the clamping rod 8. It should be noted that the length of the clamping rod 8 should not be too long to prevent the clamping rod 8 from interfering with the placement of the gear 2.
[0027] Furthermore, there are multiple groups of the clamping grooves 7, and the multiple groups of clamping grooves 7 are circumferentially and evenly distributed along the inner column 6. Each group of clamping grooves 7 corresponds to a clamping rod 8.
[0028] By inserting the clamping rod 8 into the clamping grooves 7 at different heights to adjust the height of the heat conduction column 1, gears 2 with different thicknesses can all be heat-treated through the same partition base 4, and the adaptability is higher.
[0029] Embodiment Three, as Figure 1-5 shown in the figure, the difference between this embodiment and the first embodiment is that the partition base 4 is formed by three straight rods evenly distributed in a circle to form a "Y" shape. A strip-shaped groove 9 parallel to the length of the straight rod is opened at the top of each straight rod. The strip-shaped groove 9 is a "convex" shape with a narrower upper cross-section and a wider lower cross-section. A slider 10 is movably connected in the strip-shaped groove 9. The width of the slider 10 is greater than the width of the top opening of the strip-shaped groove 9. At least one connecting rod 11 is fixedly installed on the top of the slider 10. The top of the connecting rod 11 is fixedly connected to the supporting boss 3, so that the supporting boss 3 can slide on the partition base 4 to adjust the diameter size of the circle formed by the supporting bosses 3, thereby adapting to gears 2 with different diameter sizes.
[0030] According to actual needs, the above-mentioned bracket for improving the stability and efficiency of gear heat treatment can be further optimized or / and improved:
[0031] Each bracket 12 is provided with three positioning grooves 13 respectively adapted to the three ends of the side surface of the partition base 4. The partition base 4 is detachably placed in the bracket 12 through the positioning grooves 13. Due to the large quantity, when a certain partition base 4 is damaged, the damaged partition base 4 can be directly taken out of the bracket 12 and a new partition base 4 can be replaced, without the need to replace the whole or perform repairs such as cutting and welding, which is more convenient to use.
[0032] In summary: By placing the gear 2 on the supporting boss 3 instead of the original placement of the gear 2 on the basket partition and stacking them, the furnace loading capacity can be doubled, the single-piece heat treatment processing cost can be reduced. By adopting a three-point support structure and adding a heat conduction column at the inner hole, during heat treatment, the heat conduction column is heated together with the part. When cooling, the outer ring of the part cools first, and due to the presence of the heat conduction column, the inner hole cools more slowly, so the deformation consistency is better.
[0033] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Anyone skilled in the art can smoothly implement this utility model according to the accompanying drawings and the above description. However, any modifications, alterations, or equivalent changes made by those skilled in the art without departing from the scope of the technical solution of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or evolutions made to the above embodiments based on the essential technology of this utility model are still within the protection scope of the technical solution of this utility model.
Claims
1. A support for improving the stability and efficiency of gear heat treatment, characterized in that: The device includes a partition base (4), on which a heat-conducting column (1) is fixedly installed at the top center. The height of the heat-conducting column (1) is greater than the height of the gear (2). Multiple support bosses (3) are fixedly installed at the top of the partition base (4) in a circular and equidistant manner. The diameter of the circle formed by the multiple support bosses (3) is smaller than the outer diameter of the gear (2) and larger than the inner diameter of the gear (2). A receiving groove (5) is opened at the bottom center of the partition base (4). The top of the heat-conducting column (1) is chamfered and used to insert into the receiving groove (5) of the adjacent bracket. The maximum width of the heat-conducting column (1) does not exceed the inner diameter of the gear (2). The heat-conducting column (1), the partition base (4), and the support bosses (3) are integrally formed. Several partition bases (4) are arranged in a rectangular array and fixedly connected to each other.
2. The bracket for improving the stability and efficiency of gear heat treatment according to claim 1, characterized in that: There are multiple partition bases (4), which are arranged in a rectangular array and are fixedly connected to each other.
3. The bracket for improving the stability and efficiency of gear heat treatment according to claim 1, characterized in that: It also includes several brackets (12) arranged in a rectangular array. Each bracket (12) has a partition base (4) fixedly connected inside it.
4. The bracket for improving the stability and efficiency of gear heat treatment according to claim 3, characterized in that: Each bracket (12) has three positioning slots (13) that are adapted to the three ends of the side of the partition base (4). The partition base (4) can be detachably placed in the bracket (12) through the positioning slots (13).
5. The bracket for improving the stability and efficiency of gear heat treatment according to claim 1, characterized in that: The inner column (6) is fixedly installed at the top center of the partition base (4). The bottom of the heat-conducting column (1) is concave and adapted to the inner column (6). The heat-conducting column (1) can slide up and down to wrap the inner column (6).
6. The bracket for improving the stability and efficiency of gear heat treatment according to claim 5, characterized in that: The inner column (6) has several slots (7) on its side wall in a vertical line, and a locking rod (8) is detachably inserted into the slot (7).
7. The bracket for improving the stability and efficiency of gear heat treatment according to claim 6, characterized in that: The slots (7) are in multiple sets, and the multiple sets of slots (7) are distributed at intervals along the circumference of the inner column (6). Each set of slots (7) corresponds to a locking rod (8).
8. The bracket for improving the stability and efficiency of gear heat treatment according to claim 1, characterized in that: The partition base (4) is formed by three straight rods distributed at equal intervals around the circumference to form a "Y" shape. Each straight rod has a strip groove (9) parallel to the length of the straight rod at its top. A slider (10) is movably connected in the strip groove (9). At least one connecting rod (11) is fixedly installed on the top of the slider (10). The top of the connecting rod (11) is fixedly connected to the support boss (3).
9. A bracket for improving the stability and efficiency of gear heat treatment according to claim 8, characterized in that: The cross-section of the strip groove (9) is convex, and the width of the slider (10) is greater than the width of the top opening of the strip groove (9).
10. The bracket for improving the stability and efficiency of gear heat treatment according to claim 1, characterized in that: The supporting bosses (3) are three in number and are distributed in a circular shape at equal intervals.