Assistive suspension tool for heat treatment of shaft

Abstract

The utility model belongs to the technical field of heat treatment of shafts, and discloses a heat treatment suspension auxiliary tool for shafts. The heat treatment suspension assistive device for the shaft specifically comprises a supporting plate, a suspension part and a plurality of assembly threaded parts, wherein the suspension part is used for being connected with hoisting equipment; the supporting plate is arranged at the bottom of the hanging piece, and a plurality of hanging through holes are formed in the supporting plate; the assembling threaded holes penetrate through the corresponding hanging through holes and are in threaded connection with hanging threaded holes formed in the ends of the shafts so that the shafts can be hung on the supporting plate. Through the arrangement, the bottom end of the shaft part can be in a free suspension state, so that the bottom end of the shaft part is prevented from being in contact with other parts, the purpose of reducing the bending deformation of the shaft part during carburizing and quenching can be achieved, and the shaft part meets the final technical requirements. In addition, the heat treatment suspension auxiliary tool for the shaft is simple in structure, low in production cost and capable of greatly reducing the weight occupied by the shaft during suspension, so that the safety and the reliability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the heat treatment technical field of axle especially relates to a kind of heat treatment suspension auxiliary for axle. BACKGROUND

[0002] At present, the output gear shaft in existing gear box is generally 2200mm in length and 20mm in diameter, and the length-diameter ratio exceeds 10. When carrying out carburizing quenching treatment on it, hoisting equipment is used to hoist the output gear shaft into the carburizing furnace. The conventional loading method is to stand the shaft on the rack base plate, with the shaft end face in contact with the base plate, and then use the hoisting rack to bring the shaft into the carburizing furnace for heat treatment.

[0003] However, since the output gear shaft is of an elongated structure, bending deformation is likely to occur during carburizing quenching. The above loading method can even make the output gear shaft diameter runout by 23mm, which is far beyond the machining allowance, thus failing to meet the subsequent finishing requirements of the output gear shaft.

[0004] Therefore, there is an urgent need for a heat treatment suspension auxiliary for axle to solve the problems existing in the prior art. SUMMARY

[0005] The utility model aims at providing a heat treatment suspension auxiliary for axle, which can reduce the bending deformation of the shaft during carburizing quenching, meet the technical requirements, and has a simple structure, is easy to use and low in cost.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The heat treatment suspension auxiliary for axle comprises a suspension member for connecting hoisting equipment, a support plate arranged at the bottom of the suspension member, and a plurality of mounting through holes provided in the support plate. A plurality of assembly threaded members are provided in the corresponding mounting through holes and are threadedly connected with the mounting threaded holes provided in the end portion of the shaft member to mount the shaft member on the support plate.

[0008] Preferably, the assembly threaded members are bolts.

[0009] Preferably, the support plate is a circular plate, a plurality of mounting through holes are provided around the axis of the support plate on the support plate, a plurality of mounting threaded holes are provided in the end portion of the shaft member, and the plurality of mounting through holes and the plurality of mounting threaded holes are arranged one-to-one.

[0010] Preferably, the mounting through holes are waist-shaped holes, and the length extension direction of the mounting through holes is parallel to the radial direction of the support plate.

[0011] Preferably, the suspension member is provided with a threaded connection part, and the support plate is provided with a receiving threaded hole. The threaded connection part is threaded into the receiving threaded hole, so that the suspension member is detachably and fixedly connected to the support plate.

[0012] Preferably, the shaft heat-treated suspension accessory further includes a support member, on which a through hole is formed;

[0013] The suspension member is provided with a flange portion, the suspension member passes through the through hole and is connected to the support plate, and the flange portion abuts against the support member.

[0014] Preferably, the via includes a first via and a second via;

[0015] The support includes a hanging tray and a clamping plate. The clamping plate overlaps the hanging tray. The hanging tray has a first through hole, and the clamping plate has a second through hole. The suspension member passes through the second through hole and the first through hole in sequence, and the flange abuts against the clamping plate.

[0016] Preferably, the cross-sectional area of ​​the pallet gradually decreases along the direction from the support plate to the hanging tray, so that the pallet has a trapezoidal structure.

[0017] Preferably, the via includes a first via, a second via, and a third via;

[0018] The support includes a hanging tray, a clamping plate, and a pad. The clamping plate overlaps the hanging tray, and the pad overlaps the clamping plate. The hanging tray has a first through hole, the clamping plate has a second through hole, and the pad has a third through hole. The suspension member passes through the third through hole, the second through hole, and the first through hole in sequence, and the flange abuts against the pad.

[0019] Preferably, the support plate is provided with a number of weight-reducing holes.

[0020] The beneficial effects of the shaft heat treatment suspension fixture provided by this utility model are as follows: By using an assembly threaded component, which passes through the mounting through hole on the corresponding support plate and is threadedly connected to the mounting threaded hole at the end of the shaft, the shaft can be stably mounted on the support plate. Subsequently, by connecting the suspension component to a lifting device, the support plate and the shaft can rise simultaneously with the suspension component, allowing the bottom end of the shaft to be in a free-floating state. This prevents the bottom end of the shaft from contacting other components, thereby reducing the bending deformation of the shaft during carburizing and quenching, thus meeting the final technical requirements. Furthermore, the shaft heat treatment suspension fixture provided in this embodiment has a simple structure, low production cost, and can significantly reduce the weight occupied by the shaft during suspension, thereby improving safety and reliability. Attached Figure Description

[0021] Fig. 1 This is a schematic diagram of the structural connection of the heat-treated suspension accessory for the shaft provided in this embodiment of the utility model;

[0022] Fig. 2 This is a structural cross-sectional view of the heat-treated suspension accessory for shafts provided in this embodiment of the utility model;

[0023] Fig. 3 This is a schematic diagram of the structure of the suspension component provided in this embodiment of the utility model.

[0024] In the picture:

[0025] 100. Shaft; 110. Mounting threaded hole;

[0026] 1. Support plate; 11. Mounting through hole; 12. Weight reduction hole; 13. Threaded receiving hole;

[0027] 2. Suspension component; 21. Threaded connection; 22. Flange;

[0028] 3. Assemble threaded parts;

[0029] 401, Second via; 41, Card plate. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] The technical solution provided by this utility model will be described below with reference to the accompanying drawings and specific embodiments.

[0035] Combination Figs. 1 to 3 As shown, this embodiment provides a shaft heat treatment suspension accessory, which is particularly suitable for ultra-long and ultra-heavy shaft parts. The shaft heat treatment suspension accessory includes a support plate 1, a suspension member 2, and several threaded assembly members 3. The suspension member 2 is used to connect to lifting equipment, and the bottom of the suspension member 2 is vertically connected to the support plate 1. The support plate 1 is set at the end of the shaft 100, and several mounting through holes 1 for suspending the shaft 100 are opened on the support plate 1. The threaded assembly members 3 pass through the corresponding mounting through holes 11 and are threadedly connected to the mounting threaded holes 110 opened at the end of the shaft 100 to hang the shaft 100 on the support plate 1.

[0036] When using the aforementioned shaft heat treatment suspension fixture, firstly, the mounting threaded hole 110 on the shaft 100 is aligned with the mounting through hole 11 on the support plate 1. Then, the assembly threaded part 3 is inserted into the corresponding mounting through hole 11 and threadedly connected to the mounting threaded hole 110, thereby allowing the shaft 100 to be stably mounted on the support plate 1. Subsequently, the suspension part 2 is connected to the lifting equipment, allowing the support plate 1 and the shaft 100 to rise simultaneously with the suspension part 2, enabling the shaft 100 to be vertically hoisted into the carburizing furnace. Then, by raising the height of the suspension part 2, the bottom end of the shaft 100 is allowed to be in a free-floating state, preventing the bottom end of the shaft 100 from contacting other components, thereby reducing the bending deformation of the shaft 100 during carburizing and quenching, and ensuring it meets the final technical requirements. Furthermore, the shaft heat treatment suspension fixture provided in this embodiment has a simple structure and low production cost, which can greatly reduce the weight occupied by the shaft 100 during suspension, thereby improving safety and reliability.

[0037] It should be noted that this utility model does not specifically limit the number of mounting through holes 11, mounting threaded holes 110, and assembly threaded parts 3. The specific number used can be adjusted according to the actual weight and diameter of the shaft 100. For example, in this embodiment, the shaft 100 is a long output gear shaft in the gearbox, generally 2200mm in length, 20mm in diameter, with a length-to-diameter ratio exceeding 10, and a weight of 550KG. Therefore, through adjustment, at least four mounting through holes 11 need to be opened on the support plate 1, correspondingly at least four mounting threaded holes 110 need to be opened on the shaft 100, and at least four assembly threaded parts 3 need to be used to achieve the technical requirements of safe and stable suspension.

[0038] Of course, it is understandable that in other parallel embodiments, if the radial size of the shaft 100 is small and the weight is light, the number of mounting through holes 11, mounting threaded holes 110 and assembly threaded parts 3 can be appropriately reduced in order to achieve a stable connection between the support plate 1 and the shaft 100 while reasonably controlling the cost.

[0039] Furthermore, in this embodiment, reference is made to... Fig. 1 As shown, the mounting through hole 11 is an oblong hole, and the length extension direction of the mounting through hole 11 is parallel to the radial direction of the support plate 1. When it is necessary to heat treat shafts 100 with different shaft diameters, the mounting threaded part 3 can slide in the mounting through hole 11 along the radial direction of the support plate 1 to change its setting position on the support plate 1, so that the support plate 1 can fix shafts 100 with different shaft diameters, thereby improving the applicability of the shaft heat treatment suspension auxiliary.

[0040] Preferably, the above-mentioned assembly threaded part 3 uses an M16 bolt, which makes the disassembly process simpler, facilitates maintenance and adjustment, and can also meet the requirement of providing a reliable connection force for the support plate 1 and the shaft 100.

[0041] Furthermore, the support plate 1 is also provided with multiple weight-reducing holes 12 to reduce the material used in the design of the support plate 1, thereby reducing the weight of the support plate 1 and helping to alleviate the working intensity of the crane crane.

[0042] In this embodiment, reference Fig. 3 As shown, the suspension component 2 is a screw-type component, such as a screw rod, with a threaded connection portion 21 at its tail end. A receiving threaded hole 13 is provided at the center of the support plate 1. By threading the threaded connection portion 21 into the receiving threaded hole 13, the suspension component 2 can be detachably and securely connected to the support plate 1. This method not only ensures the stable and reliable connection between the suspension component 2 and the support plate 1, but also facilitates disassembly and assembly. While improving assembly efficiency, it also allows for the storage, carrying, inspection, or replacement of the suspension component 2 and the support plate 1 through disassembly, thus offering greater flexibility in use.

[0043] Furthermore, the head end of the aforementioned suspension component 2 is provided with a flange portion 22. To reduce the transmission difficulty of the suspension component 2 by the crane crane, the heat-treated suspension accessory for the axle provided in this embodiment also includes a support component. The support component has several through holes, which are correspondingly arranged with bearing threaded holes. After the tail end of the suspension component 2 passes through the through holes, it is threadedly connected to the bearing threaded hole on the support plate 1. At this time, the flange portion 22 can press against the support component. In this way, in actual use, the crane crane can indirectly drive the suspension component 2, the support plate 1, and the axle 100 to rise and fall simultaneously by hooking and driving the support component to rise or fall. Through the above arrangement, the direct connection between the crane crane and the suspension component 2 can be avoided. By arranging multiple hook-locking points along the circumference on the support component, the crane crane can smoothly lift the support component, thereby making the lifting process of the axle 100 more stable and safe.

[0044] Specifically, in this embodiment, the through hole includes a first through hole and a second through hole 401; the support includes a hanging tray and a clamping plate 41, wherein the clamping plate 41 overlaps above the hanging tray, the hanging tray has a first through hole, the clamping plate 41 has a second through hole 401, the threaded connection part 21 of the suspension 2 passes through the second through hole 401 and the first through hole in sequence, and is threadedly connected to the receiving threaded hole 13, while the flange part 22 can press against the upper surface of the clamping plate 41.

[0045] It should be noted that in this embodiment, the mounting tray is a conventional tray part. The first through hole on a conventional tray part typically has a large radial dimension. If the flange 22 on the screw directly overlaps the mounting tray, it is difficult to achieve this. Designing a mounting tray with a smaller first through hole radial dimension would incur additional manufacturing costs. Therefore, by introducing the clamping plate 41 structure, the purpose of attaching the suspension member 2 to the mounting tray can be achieved without producing additional mounting trays with other radial sizes for the first through hole. Moreover, this clamping plate 41 structure is relatively easy to obtain, thus effectively reducing process complexity and manufacturing costs, while also effectively ensuring the vertical stability of the suspension member 2.

[0046] It should be noted that in other parallel embodiments, the support member may also include a pad (not shown in the figure). The pad is disposed above the clamping plate 41 and has a third through hole, so that the threaded connection part 21 of the suspension member 2 can pass through the third through hole, the second through hole 402 and the first through hole in sequence, and then be threadedly connected to the receiving threaded hole 13. By setting the above-mentioned pad, when the hanging tray rises to the maximum height, the operator can add an additional pad between the flange part 22 and the clamping plate 41 to further increase the rising height of the shaft member 100, ensuring that the shaft member 100 can be raised to the suspended position.

[0047] It should be noted that in other parallel embodiments, the pallet 41 can be a trapezoidal structure, with the cross-sectional area of ​​the pallet 41 gradually decreasing along the direction from the support plate 1 to the hanging tray. This design enhances the load-bearing capacity of the pallet 41, extends the service life of the pallet 41, and thus improves the reliability and stability of the overall structure.

[0048] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A heat-treated suspension fixture for a shaft, characterized in that, include: Suspension component (2), used to connect lifting equipment; A support plate (1) is provided at the bottom of the suspension member (2), and the support plate (1) has a plurality of mounting through holes (11); A plurality of assembly threaded parts (3) are provided, the assembly threaded parts (3) passing through the corresponding mounting through holes (11) and threadedly connected to the mounting threaded holes (110) opened at the end of the shaft (100) to mount the shaft (100) onto the support plate (1).

2. The heat-treated suspension fixture for shafts according to claim 1, characterized in that, The assembly threaded component (3) is a bolt.

3. The heat-treated suspension fixture for shafts according to claim 1, characterized in that, The support plate (1) is a circular plate. Multiple mounting through holes (11) are provided on the support plate (1) around the axis of the support plate (1). Multiple mounting threaded holes (110) are provided at the end of the shaft (100). The multiple mounting through holes (11) and the multiple mounting threaded holes (110) are arranged one-to-one.

4. The heat-treated suspension fixture for a shaft according to claim 1, characterized in that, The mounting through hole (11) is a waist-shaped hole, and the length extension direction of the mounting through hole (11) is parallel to the radial direction of the support plate (1).

5. The heat-treated suspension fixture for a shaft according to claim 1, characterized in that, The suspension member (2) is provided with a threaded connection part (21), and the support plate (1) is provided with a receiving threaded hole (13). The threaded connection part (21) is threaded into the receiving threaded hole (13) so that the suspension member (2) is detachably fixedly connected to the support plate (1).

6. The heat-treated suspension fixture for a shaft according to claim 1, characterized in that, The heat-treated suspension fixture for the shaft also includes a support member, on which a through hole is provided; The suspension member (2) is provided with a flange (22), the suspension member (2) passes through the through hole and is connected to the support plate (1), and the flange (22) abuts against the support member.

7. The heat-treated suspension fixture for a shaft according to claim 6, characterized in that, The via includes a first via and a second via (401); The support includes a hanging tray and a clamping plate (41). The clamping plate (41) overlaps the hanging tray. The hanging tray has a first through hole, and the clamping plate (41) has a second through hole (401). The suspension member (2) passes through the second through hole (401) and the first through hole in sequence, and the flange (22) presses against the clamping plate (41).

8. The heat-treated suspension fixture for a shaft according to claim 7, characterized in that, Along the direction from the support plate (1) to the hanging tray, the cross-sectional area of ​​the clamping plate (41) gradually decreases so that the clamping plate (41) has a trapezoidal structure.

9. The heat-treated suspension fixture for a shaft according to claim 6, characterized in that, The vias include a first via, a second via (401), and a third via; The support includes a hanging tray, a clamping plate (41), and a pad. The clamping plate (41) overlaps the hanging tray, and the pad overlaps the clamping plate (41). The hanging tray has a first through hole, the clamping plate (41) has a second through hole (401), and the pad has a third through hole. The suspension member (2) passes through the third through hole, the second through hole (401), and the first through hole in sequence, and the flange (22) presses against the pad.

10. The heat-treated suspension fixture for a shaft according to any one of claims 1-9, characterized in that, The support plate (1) is provided with a number of weight reduction holes (12).

Images