CN112207198A - Constant-temperature spinning wheel structure for aluminum liner spinning closing-in production line - Google Patents

Abstract

The invention discloses a constant-temperature spinning wheel structure used in an aluminum liner spinning closing-in production line, wherein a first sleeve hole which is through from front to back is formed in the front end surface of a temperature-reducing base with a mounting cavity; the coil pipe is sleeved on the sleeve pipe, and the liquid inlet end and the liquid outlet end of the coil pipe respectively penetrate through the corresponding through holes on the side wall of the temperature reduction base and then extend out of the temperature reduction base; the rotating shaft is supported and arranged in the sleeve through a bearing, the spinning wheel is fixed at the front end of the rotating shaft extending out of the front end of the sleeve, the motor support with the motor is fixed on the rear end face of the temperature reduction base, and a motor shaft of the motor is fixedly connected with the rear end of the rotating shaft. The structure has the following advantages: can indirectly and uniformly cool the spinning wheel and the rotating shaft and can improve the qualification rate of spinning closing up.

Description

Constant-temperature spinning wheel structure for aluminum liner spinning closing-in production line

Technical Field

The invention relates to the field of hydrogen energy equipment manufacturing, in particular to a constant-temperature spinning wheel structure for an aluminum liner spinning closing-up production line.

Background

Metal spinning is a metal plastic forming processing technology which integrates extrusion, forging, bending, deep drawing, rolling and ring rolling, has the advantages of chip-free processing, raw material saving, low cost, high product quality and the like, and is widely applied to mechanical processing occasions of complex curved surface parts with high precision, light weight and high stability.

The metal spinning technology utilizes seamless metal pipes to manufacture various hollow parts of a revolving body, fundamentally eliminates the problems of discontinuity, strength reduction, brittle fracture, tensile stress concentration and the like related to welding seams, greatly improves the safety of a high-pressure container, and is widely applied to the aluminum inner container manufacturing production line of the vehicle-mounted high-pressure hydrogen storage cylinder.

In the production line of the aluminum liner of the vehicle-mounted high-pressure hydrogen storage cylinder, when the aluminum liner is spun and closed, the aluminum pipe base metal is generally heated to 500 +/-10 ℃ so as to improve the fluidity of the aluminum pipe base metal and enhance the plastic processing capacity of the aluminum pipe; however, the spinning wheel is in direct contact with the aluminum pipe base material when in work, the spinning wheel and the rotating shaft driving the spinning wheel to rotate work in a high-temperature and high-pressure environment for a long time, severe friction is also born at the same time, and the working environment brings great tests on the service life of the spinning wheel and the strength of the rotating shaft and the strength of the structure. At present, the spinning wheel is cooled by directly pouring or atomizing a cooling liquid or a lubricating liquid and then pouring the cooling liquid or the lubricating liquid onto the aluminum tube base metal and the spinning wheel, and local cooling is carried out in a point-to-point mode, so that processing defects such as scale pressing damage, folding, groove marks and the like are easily formed on the surface of the aluminum tube base metal.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: the constant-temperature spinning wheel structure for the spinning closing-in production line of the aluminum liner is used for indirectly and uniformly cooling the spinning wheel and the rotating shaft and improving the spinning closing-in qualified rate.

When the aluminum liner is closed by spinning at high temperature, the plastic deformation is extremely large, if the cooling liquid is directly poured on the surface of the spinning wheel or the aluminum tube base metal, the surface temperature of the high-temperature aluminum tube base metal is not uniform, the flow speed of the aluminum tube base metal is not uniform, and the like, cracks are easily formed on the surface of the aluminum tube base metal, so that the aluminum liner is scrapped. In order to solve the problems, the invention adopts the technical scheme that: a constant temperature spinning wheel structure that is arranged in aluminium inner bag spinning binding off production line, include: the temperature reduction base is provided with an installation cavity, a first sleeve hole which is through from front to back is formed in the front end face of the temperature reduction base, a second sleeve hole which is through from front to back is formed in the rear end face of the temperature reduction base, the sleeve is inserted into the installation cavity of the temperature reduction base, the front end of the sleeve is fixedly placed in the first sleeve hole, and the rear end of the sleeve is fixedly placed in the second sleeve hole; the coil pipe is sleeved on the sleeve pipe, and the liquid inlet end and the liquid outlet end of the coil pipe respectively penetrate through the corresponding through holes on the side wall of the temperature reduction base and then extend out of the temperature reduction base; the rotating shaft is supported and arranged in the sleeve through a bearing, the spinning wheel is fixed at the front end of the rotating shaft extending out of the front end of the sleeve, the motor support with the motor is fixed on the rear end face of the temperature reduction base, and a motor shaft of the motor is fixedly connected with the rear end of the rotating shaft.

Further, the constant-temperature spinning wheel structure for the aluminum liner spinning closing-in production line comprises a coil pipe made of a metal pipe or a plastic pipe, wherein the coil pipe is sleeved on the sleeve pipe, and the liquid inlet end and the liquid outlet end of the coil pipe are located on the same side.

Further, the constant-temperature spinning wheel structure for the aluminum liner spinning closing-in production line is characterized in that joints are arranged at the liquid inlet end and the liquid outlet end of the coil pipe, and the joints are clamping sleeve joints or pagoda joints.

Further, the constant-temperature spinning wheel structure used in the aluminum liner spinning closing-in production line is characterized in that a gap between the rotating shaft and the sleeve is filled with heat-conducting silica gel.

Further, the constant-temperature spinning wheel structure for the aluminum inner container spinning closing-in production line comprises a spinning wheel made of GCr15 and having a hardness of HRC60 +/-2, wherein the spinning wheel is fixed at the front end of a rotating shaft extending out of the front end of a sleeve, the diameter of the spinning wheel is 250-300 mm, and the radius of a working fillet of the spinning wheel is 8-20 mm.

Furthermore, the constant-temperature spinning wheel structure for the aluminum liner spinning closing-in production line comprises a shaft shoulder arranged on a rotating shaft extending out of the front end of a sleeve, a spinning wheel sleeved in from the front end of the rotating shaft and fixed on the shaft shoulder through a plurality of first bolts, a cover plate fixed on the front end of the rotating shaft through a plurality of second bolts, and the cover plate tightly attached to the front end of the spinning wheel and used for sealing each first bolt.

Further, the constant-temperature spinning wheel structure for the aluminum liner spinning closing-in production line is characterized in that the temperature reduction base is formed by splicing a male base and a female base, a clamping groove is formed in the rear end face of the male base, a boss which protrudes outwards and is matched with the clamping groove correspondingly is arranged on the front end face of the female base, and the boss is clamped in the clamping groove.

The invention has the beneficial effects that: firstly, the structure of a rotating shaft is not required to be changed, the whole structure is simple and compact, and the processing and maintenance cost is low; secondly, when the spinning machine works, the cooling medium of the input coil pipe absorbs heat indirectly, so that the rotating shaft and the spinning wheel are cooled uniformly, cooling liquid or lubricating liquid does not need to be poured into the spinning wheel and the aluminum pipe base metal to be spun, the spinning closing-up yield is greatly improved, the working environment of the spinning wheel is improved, and the service life of the spinning wheel is prolonged.

Drawings

FIG. 1 is a schematic structural view of a constant-temperature spinning wheel used in an aluminum liner spinning necking production line.

Fig. 2 is an exploded view of the components of fig. 1, disassembled.

Figure 3 is an exploded view of the desuperheating base.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.

As shown in fig. 1, fig. 2 and fig. 3, the constant temperature spinning wheel structure for an aluminum liner spinning necking-in production line in the present embodiment includes: the temperature reduction base 1 with the installation cavity is characterized in that a first sleeve pipe hole 12 which is through from front to back is formed in the front end face 11 of the temperature reduction base 1, a second sleeve pipe hole 14 which is through from front to back is formed in the rear end face 13 of the temperature reduction base 1, the sleeve 2 is inserted into the installation cavity of the temperature reduction base 1, the front end of the sleeve 2 is fixedly placed in the first sleeve pipe hole 12, and the rear end of the sleeve 2 is fixedly placed in the second sleeve pipe hole 14. The coil pipe 3 is sleeved on the sleeve pipe 2, and the liquid inlet end 31 and the liquid outlet end 32 of the coil pipe 3 respectively penetrate through the corresponding through holes 103 on the side wall of the temperature reduction base 1 and then extend out of the temperature reduction base 1. The rotating shaft 4 is supported and arranged in the sleeve 2 through a bearing, the spinning wheel 5 is fixed at the front end of the rotating shaft 4 extending out of the front end of the sleeve 2, the motor support 7 with the motor 8 is fixed on the rear end surface 13 of the temperature reduction base 1, and the motor shaft of the motor 8 is fixedly connected with the rear end of the rotating shaft 4. The rotating shaft 4 is driven by the motor 8 to rotate relative to the axis of the rotating shaft, so that the spinning wheel 5 fixed on the rotating shaft 4 rotates.

As shown in fig. 3, the coil 3 in this embodiment can be made of metal pipe or plastic pipe, and the inlet end 31 and the outlet end 32 of the coil 3 are located on the same side. The liquid inlet end 31 and the liquid outlet end 32 of the coil pipe 3 are both provided with joints 9, and the joints 9 can adopt one of a ferrule joint or a pagoda joint. The inlet end 31 of the coil 3 is connected to a source of powered cold medium via a connection 9. The refrigerant medium can be antifreeze or water with the temperature not higher than 35 ℃.

In this embodiment, the gap between the rotating shaft 4 and the sleeve 2 is filled with heat-conducting silica gel, which can enhance the heat transfer effect, improve the indirect heat exchange efficiency between the refrigerant medium in the coil 3 and the rotating shaft 4 and the spinning wheel 5, ensure the uniform cooling of the spinning wheel 5, and contribute to lubrication and smooth rotation of the rotating shaft 4.

The spinning wheel 5 in the embodiment is made of GCr15, the hardness is HRC60 +/-2, the diameter of the spinning wheel 5 is 250-300 mm, and the radius of a working fillet of the spinning wheel 5 is 8-20 mm. In the process of indirect cooling, the working temperature of the spinning wheel 5 is generally 350-400 ℃.

As shown in fig. 2, in this embodiment, the fixing manner of the rotating wheel 5 on the rotating shaft 4 is as follows: a shaft shoulder 41 is arranged on the rotating shaft 4 extending out of the front end of the sleeve 2, the spinning wheel 5 is sleeved in from the front end of the rotating shaft 4 and fixed on the shaft shoulder 41 through a plurality of first bolts 51, an inward-recessed mounting groove is arranged on the front end face of the spinning wheel 5, and the head of each first bolt 51 is positioned in the mounting groove. The cover plate 6 is fixed on the front end of the rotating shaft 4 through a plurality of second bolts 61, and the cover plate 6 is tightly attached to the front end of the spinning wheel 5 and covers the first bolts 51 in the mounting groove.

As shown in fig. 3, in order to facilitate the installation of the casing 2, etc., the desuperheating base 1 is formed by splicing a male base 100 and a female base 101, and an internal cavity 104 of the male base 100 and an internal cavity of the female base 101 are spliced to form a complete installation cavity. A clamping groove 15 is formed inwards on the rear end face of the male base 100, a boss 16 which protrudes outwards and is correspondingly matched with the clamping groove is arranged on the front end face of the female base 101, and the boss 16 is clamped in the clamping groove 15. The constant-temperature spinning wheel structure is arranged on a spinning machine through a temperature-reducing base 1 and a plurality of fasteners.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, but any modifications or equivalent variations made in accordance with the technical spirit of the present invention are within the scope of the present invention as claimed.

The invention has the advantages that: the structure of the rotating shaft 4 does not need to be changed, the whole structure is simple and compact, and the processing and maintenance cost is low; secondly, when the spinning machine works, the cooling medium of the input coil pipe 3 absorbs heat indirectly, so that the rotating shaft 4 and the spinning wheel 5 are cooled uniformly, cooling liquid or lubricating liquid does not need to be poured into the spinning wheel 5 and the spun aluminum pipe base metal, the spinning closing-up yield is greatly improved, the working environment of the spinning wheel 5 is improved, and the service life of the spinning wheel is prolonged.

Claims (7)

1. The utility model provides a constant temperature spinning wheel structure that is arranged in aluminium inner bag spinning binding off production line which characterized in that: the method comprises the following steps: the temperature reduction base is provided with an installation cavity, a first sleeve hole which is through from front to back is formed in the front end face of the temperature reduction base, a second sleeve hole which is through from front to back is formed in the rear end face of the temperature reduction base, the sleeve is inserted into the installation cavity of the temperature reduction base, the front end of the sleeve is fixedly placed in the first sleeve hole, and the rear end of the sleeve is fixedly placed in the second sleeve hole; the coil pipe is sleeved on the sleeve pipe, and the liquid inlet end and the liquid outlet end of the coil pipe respectively penetrate through the corresponding through holes on the side wall of the temperature reduction base and then extend out of the temperature reduction base; the rotating shaft is supported and arranged in the sleeve through a bearing, the spinning wheel is fixed at the front end of the rotating shaft extending out of the front end of the sleeve, the motor support with the motor is fixed on the rear end face of the temperature reduction base, and a motor shaft of the motor is fixedly connected with the rear end of the rotating shaft.

2. The constant-temperature spinning wheel structure used in the spinning closing-in production line of the aluminum liner according to claim 1, characterized in that: the coil pipe made of metal pipe or plastic pipe is sleeved on the sleeve pipe, and the liquid inlet end and the liquid outlet end of the coil pipe are positioned at the same side.

3. The constant-temperature spinning wheel structure used in the spinning closing-in production line of the aluminum liner according to claim 1 or 2, characterized in that: the liquid inlet end and the liquid outlet end of the coil pipe are both provided with joints, and the joints are one of clamping sleeve joints or pagoda joints.

4. The constant-temperature spinning wheel structure used in the spinning closing-in production line of the aluminum liner according to claim 1, characterized in that: and heat-conducting silica gel is filled in a gap between the rotating shaft and the sleeve.

5. The constant-temperature spinning wheel structure used in the spinning closing-in production line of the aluminum liner according to claim 1, characterized in that: the rotary pressing wheel made of GCr15 and having the hardness of HRC60 +/-2 is fixed at the front end of the rotating shaft extending out of the front end of the sleeve, the diameter of the rotary pressing wheel is 250-300 mm, and the radius of a working fillet of the rotary pressing wheel is 8-20 mm.

6. The constant-temperature spinning wheel structure used in the spinning necking-in production line of the aluminum liner according to claim 5, is characterized in that: the rotary shaft extending out of the front end of the sleeve is provided with a shaft shoulder, the rotary pressing wheel is sleeved in from the front end of the rotary shaft and fixed on the shaft shoulder through a plurality of first bolts, the cover plate is fixed on the front end of the rotary shaft through a plurality of second bolts, and the cover plate is tightly attached to the front end of the rotary pressing wheel and covers all the first bolts.

7. The constant-temperature spinning wheel structure for the spinning closing-in production line of the aluminum inner container as claimed in claim 1, 2, 4 or 5, wherein: the temperature reduction base is formed by splicing a male base and a female base, a clamping groove is formed in the rear end face of the male base inwards, a boss which protrudes outwards and is matched with the clamping groove correspondingly is arranged on the front end face of the female base, and the boss is embedded in the clamping groove in a clamping mode.

Images