CN219526735U - Heat treatment cooling device for transmission shaft production - Google Patents

Abstract

The utility model discloses a heat treatment cooling device for producing a transmission shaft, which comprises a sealed annular spray pipe, wherein a row of spray holes are formed in the inner side of the spray pipe and are distributed along the circumferential direction of the spray pipe, a flow distribution box which is coaxially arranged below the spray pipe is arranged below the spray pipe, the bottom of the flow distribution box is connected with a main flow pipe which is communicated with the inside of the flow distribution box, a plurality of branch flow pipes which are distributed in an annular array at equal interval angles around the axis of the flow distribution box are arranged on the side surface of the flow distribution box, one end of each branch flow pipe is connected to the flow distribution box, the other end of each branch flow pipe is connected to the spray pipe, and a through flow wind wheel which is coaxially arranged with the flow distribution box is rotationally connected to the flow distribution box. The heat treatment cooling device has the characteristics of spraying water from the spray holes simultaneously and cooling uniformly, and has perfect overall functions and strong practicability.

Description

Heat treatment cooling device for transmission shaft production

Technical Field

The utility model relates to the technical field of metal heat treatment, in particular to a heat treatment cooling device for transmission shaft production.

Background

After the quenching operation in the surface heat treatment is carried out on the transmission shaft, the transmission shaft needs to be rapidly cooled down so as to form a uniform hardening layer on the surface. The traditional cooling mode is water cooling, the annular spray pipe with an opening at the inner side is arranged at the periphery of the workpiece, and water is input through a water source, so that all spray holes can spray water, and the surface of the workpiece is rapidly cooled.

In the water source input process, the inside of the annular spray pipe at a position slightly close to the water source can be sprayed with water, so that the cooling rate of the surface of the workpiece is unequal, the cooling is uneven, and the overall effect is poor. Accordingly, the utility model provides a heat treatment cooling device for producing a transmission shaft.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a heat treatment cooling device for producing a transmission shaft, which has the characteristics of spraying water from spray holes and uniform cooling.

In order to solve the technical problems, the aim of the utility model is realized as follows: the utility model relates to a heat treatment cooling device for transmission shaft production, which comprises a closed annular spray pipe, wherein a row of spray holes are formed in the inner side of the spray pipe and are distributed along the circumferential direction of the spray pipe, a flow distribution box which is coaxially arranged below the spray pipe is arranged below the spray pipe, the bottom of the flow distribution box is connected with a main flow pipe which is communicated with the inside of the flow distribution box, a plurality of branch flow pipes which are distributed in an annular array at equal interval angles around the axis of the flow distribution box are arranged on the side surface of the flow distribution box, one end of each branch flow pipe is connected to the flow distribution box, the other end of each branch flow pipe is connected to the spray pipe, and a through flow wind wheel which is coaxially arranged with the flow distribution box is rotationally connected to the flow distribution box.

The utility model is further provided with: the cross flow wind wheel comprises a wheel shaft which is rotationally connected to the top of the flow distribution box, a wind wheel top plate and a wind wheel bottom plate which rotate along with the wheel shaft are arranged on the wheel shaft, a plurality of flow distribution blades which are distributed in an annular array with equal interval angles around the wheel shaft axis are arranged between the wind wheel bottom plate and the wind wheel top plate, and a plurality of flow distribution holes which are distributed in an annular array with equal interval angles around the wheel shaft axis are arranged on the wind wheel bottom plate.

The utility model is further provided with: the wind wheel bottom plate is provided with a flow blocking ring extending downwards, and the box bottom of the flow dividing box is provided with a flow blocking groove for the flow blocking ring to be embedded and slide inside.

The utility model is further provided with: the choke ring is arranged at the edge position of the wind wheel bottom plate.

The utility model is further provided with: the connecting pipe orifice of the main flow pipe and the shunt box is arranged on the axis of the shunt box.

The utility model is further provided with: all branch pipes have equal length.

In summary, the utility model has the following beneficial effects: according to the heat treatment cooling device for the production of the transmission shaft, the diversion box with the diversion function is arranged below the central position of the spray pipe, so that an input water source is evenly diverted to all the branch pipes, and the spray holes are used for spraying water at the same time under the equal-length arrangement of all the branch pipes, so that the heat treatment cooling device is even in cooling, complete in overall function and high in practicability.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of a portion of the structure of the present utility model;

FIG. 3 is a schematic view of a partial structure of the present utility model;

fig. 4 is a schematic structural view of a cross-flow wind wheel embodying the present utility model.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present utility model, preferred embodiments of the present utility model will be described below with reference to specific examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present utility model, and are not limiting the patent claims of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model will be further described with reference to the drawings and preferred embodiments.

Example 1

Referring to fig. 1 to 4, a heat treatment cooling device for producing a transmission shaft according to this embodiment includes a sealed annular nozzle 1, a row of nozzles 2 arranged along a circumferential direction of the nozzle 1 are provided at an inner side of the nozzle 1, a flow distribution box 3 coaxially provided below the nozzle 1, a main flow pipe 4 communicating with an inner portion of the flow distribution box 3 is connected at a bottom of the flow distribution box 3, a plurality of branch flow pipes 5 distributed in an annular array at equal intervals around an axis of the flow distribution box 3 are provided at a side of the flow distribution box 3, one end of each branch flow pipe 5 is connected to the flow distribution box 3, the other end is connected to the nozzle 1, and a through flow wind wheel 6 coaxially provided with the flow distribution box is rotatably connected to the flow distribution box 3.

Further, the cross-flow wind wheel 6 includes a wheel shaft 61 rotatably connected to the top of the split box, a wind wheel top plate 62 and a wind wheel bottom plate 63 rotating along with the wheel shaft 61 are provided on the wheel shaft 61, a plurality of split blades 64 distributed in annular arrays at equal intervals around the wheel shaft axis are provided between the wind wheel bottom plate 63 and the wind wheel top plate 62, and a plurality of split holes 65 distributed in annular arrays at equal intervals around the wheel shaft axis are provided on the wind wheel bottom plate 63.

Further, the connecting pipe orifice of the main flow pipe 4 and the split flow box 3 is arranged on the axis of the split flow box 3.

Further, all branch pipes 5 have equal lengths.

In this embodiment, water is supplied to the main flow pipe 4, passes through the diversion holes 65 on the wind wheel base plate 63 along the pipe, enters the cross flow wind wheel 6, and then diffuses towards the periphery, and due to the blockage of the diversion blades 64, the water flow drives the cross flow wind wheel 6 to rotate, forms a whirl in the diversion box 3, and is evenly dispersed to each diversion pipe 5, so that the spray pipe 1 is quickly and evenly filled with water, and finally is sprayed out from the spray hole 2, thereby realizing the simultaneous water spraying of each spray hole.

The connecting pipe orifices of the main flow pipe 4 and the split flow box 3 are arranged on the axis of the split flow box 3, and the lengths of all the split flow pipes 5 are equal, so that all the water is simultaneously sent into the spray pipe 1.

Example 2

Referring to fig. 1 to 4, the heat treatment cooling device for producing a transmission shaft according to the present embodiment is further configured, on the basis of embodiment 1, that a flow blocking ring 66 extending downward is provided on the wind wheel base plate 63, and a flow blocking groove (not labeled in the drawing) in which the flow blocking ring 66 is embedded and slides is provided at the bottom of the flow splitting box 3.

Further, the choke ring 66 is disposed at an edge position of the wind wheel bottom plate 63.

In this embodiment, by matching the choke ring 66 with the arrangement of the choke groove, not only the lateral blocking effect of the water flow between the wind wheel bottom plate 63 and the bottom of the split box 3 is achieved, but also the rotation guiding function in the rotation of the cross-flow wind wheel 6 is provided.

According to the heat treatment cooling device for the production of the transmission shaft, the diversion box with the diversion function is arranged below the central position of the spray pipe, so that an input water source is evenly diverted to all the branch pipes, and the spray holes are used for spraying water at the same time under the equal-length arrangement of all the branch pipes, so that the heat treatment cooling device is even in cooling, complete in overall function and high in practicability.

Unless specifically stated otherwise, in the present utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the positional or positional relation is based on the actually shown positional or positional relation, it is merely for convenience of describing the present utility model and simplifying the description, and it is not necessary to indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional or positional relation in the present utility model are merely for exemplary illustration and are not to be construed as limitations of the present patent, and it is possible for those skilled in the art to combine the embodiments and understand the specific meaning of the above terms according to the specific circumstances.

Unless specifically stated or limited otherwise, the terms "disposed," "connected," and "connected" herein are to be construed broadly, e.g., they may be fixed, removable, or integral; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims (6)

1. The heat treatment cooling device for the production of the transmission shaft comprises a closed annular spray pipe, wherein a row of spray holes which are distributed along the circumferential direction of the spray pipe are formed in the inner side of the spray pipe, and the heat treatment cooling device is characterized in that: the lower part of the spray pipe is provided with a split flow box which is arranged coaxially with the split flow box, the bottom of the split flow box is connected with a main flow pipe which is communicated with the inside of the split flow box, the side surface of the split flow box is provided with a plurality of branch flow pipes which are distributed in an annular array mode at equal intervals around the axis of the split flow box, one end of each branch flow pipe is connected with the split flow box, the other end of each branch flow pipe is connected with the spray pipe, and the split flow box is rotationally connected with a cross flow wind wheel which is arranged coaxially with the split flow box.

2. The heat treatment cooling device for drive shaft production according to claim 1, wherein: the cross flow wind wheel comprises a wheel shaft which is rotationally connected to the top of the flow distribution box, a wind wheel top plate and a wind wheel bottom plate which rotate along with the wheel shaft are arranged on the wheel shaft, a plurality of flow distribution blades which are distributed in an annular array with equal interval angles around the wheel shaft axis are arranged between the wind wheel bottom plate and the wind wheel top plate, and a plurality of flow distribution holes which are distributed in an annular array with equal interval angles around the wheel shaft axis are arranged on the wind wheel bottom plate.

3. The heat treatment cooling device for drive shaft production according to claim 2, wherein: the wind wheel bottom plate is provided with a flow blocking ring extending downwards, and the box bottom of the flow dividing box is provided with a flow blocking groove for the flow blocking ring to be embedded and slide inside.

4. A heat treatment cooling device for drive shaft production according to claim 3, wherein: the choke ring is arranged at the edge position of the wind wheel bottom plate.

5. The heat treatment cooling device for propeller shaft production as set forth in any one of claims 1 to 4, characterized in that: the connecting pipe orifice of the main flow pipe and the shunt box is arranged on the axis of the shunt box.

6. The heat treatment cooling device for propeller shaft production of claim 5 wherein: all branch pipes have equal length.