CN213559124U - Two segmentation rolling structures of equiaxial circle are cut in two precuts of 25mm screw thread - Google Patents
Two segmentation rolling structures of equiaxial circle are cut in two precuts of 25mm screw thread Download PDFInfo
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- CN213559124U CN213559124U CN202021710494.XU CN202021710494U CN213559124U CN 213559124 U CN213559124 U CN 213559124U CN 202021710494 U CN202021710494 U CN 202021710494U CN 213559124 U CN213559124 U CN 213559124U
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Abstract
The utility model provides a two segmentation rolling structures of equiaxial circle in advance of 25mm screw thread belongs to thread machining technical field. According to the technical scheme, the hot-rolled ribbed steel bar is rolled through a side pressing pass structure, a pre-cut first pass structure, a pre-cut second pass structure, a cut pass structure, a finished product front pass structure and a finished product pass structure to obtain the 25mm thread double-pre-cut equiaxial circle second cut rolling structure. The utility model discloses under the prerequisite that does not weaken roll intensity, also can satisfy the equipment requirement, reach to right
The hot-rolled ribbed steel bar meets the requirement of two-slitting rolling, is convenient to operate, improves the yield and saves the cost. The utility model can improve
The productivity of the thread product is more than 40%, the load of the equipment is not increased, and the thread product is safe and convenient.
Description
Technical Field
The utility model relates to a thread machining technical field, concretely relates to two segmentation rolling structures of equiaxial circle of 25mm screw thread pair in advance.
Background
Is currently in progress
When the hot-rolled ribbed steel bar thread is produced and rolled, roll breakage and equipment accidents are easily caused by large deformation pressure due to large specification and deep cutting groove, the top of the pre-wedge angle is easily abraded due to uneven deformation, the automatic alignment capability is poor, rolled pieces are easily cut off and deviated, large line difference occurs, and normal production cannot be realized. Therefore, the temperature of the molten metal is controlled,
the hot-rolled ribbed steel bar threads are produced by single rolling, and the production mode has long rolling period, low yield and low consumptionHigh energy and low benefit.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at to prior art's technical defect, provide a two segmentation rolling structures of equiaxial circle are cut in advance to 25mm screw thread pair to solve the lower technical problem of conventional rolling technology output.
In order to realize the technical purpose, the utility model adopts the following technical scheme:
a25 mm thread double-precut equiaxial circle double-slitting rolling structure is rolled by the following method: the hot-rolled ribbed steel bar is rolled through a side pressing pass structure, a pre-cut first pass structure, a pre-cut second pass structure, a cutting pass structure, a finished product front pass structure and a finished product pass structure to obtain the 25mm thread double-pre-cut equiaxial circle second-cut rolling structure.
Specifically, the design comprises a design of double pre-cut isometric holes, a design of parallel connection circles of the cut holes and an isometric coefficient design of finished product holes. The design of the double pre-cut equal-axis holes is completed by dividing the pre-cut split holes with deeper cutting grooves into two pre-cut split holes, and the concentrated deformation pressure is shared by the two pre-cut split holes to be borne, and meanwhile, the biting of rolled pieces is facilitated. The design of the parallel connection circle of the splitting holes is that the splitting wedge is used for exerting pressure on the connection belt of the pre-split rolled piece to further reduce the thickness of the connection part, the thickness of the connection belt is preferably 1.3-1.5mm, and the connection belt is rolled into two connection circles to prepare for tearing the rolled piece by the splitting wheel. The equiaxial coefficient design of the finished product hole is to distribute the area of the finished product hole by using a distribution elongation coefficient method to produce qualified products.
Because the rolling reduction of the double precut rolled pieces is small, the deformation pressure is dispersed, the requirement on equipment is low, and the motor with the power of 1000 kW can achieve the aim
The hot-rolled ribbed steel bar meets the requirement of two-slitting rolling, is convenient to operate, improves the yield and saves the cost.
The above-mentioned
Double precut equiaxial circle of threadThe two-slitting rolling structure can improve the productivity by more than 40 percent, does not increase the load on equipment, and is safe and convenient.
Preferably, the device for performing the rolling comprises a motor, a speed reducer and a rolling mill, wherein the motor is in transmission connection with the rolling mill through the speed reducer.
The utility model provides a can be right with two isometric round pass systems of cutting in advance
The rolling structure for carrying out two-segmentation rolling on the threaded hot-rolled ribbed steel bar is convenient to operate, the yield is improved, and the cost is saved. The beneficial effects mainly comprise the following aspects:
1. on the premise of not weakening the strength of the roller, the requirements of equipment can be met, and the aim of the method is to
The hot-rolled ribbed steel bar meets the requirement of two-slitting rolling, is convenient to operate, improves the yield and saves the cost.
2. Improvement of
The productivity of the thread product is more than 40%, the load of the equipment is not increased, and the thread product is safe and convenient.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a diagram of the apparatus of the present invention;
in the figure:
1. side pressure hole type structure 2, pre-cutting one-hole type structure 3 and pre-cutting two-hole type structure
4. Splitting hole type structure 5, finished product front hole type structure 6 and finished product hole type structure
7. Motor 8, speed reducer 9, rolling mill.
Detailed Description
The following will describe in detail specific embodiments of the present invention. Well-known structures or functions may not be described in detail in the following embodiments in order to avoid unnecessarily obscuring the details. Approximating language, as used herein in the following examples, may be applied to identify quantitative representations that could permissibly vary in number without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Example 1
A two-slitting rolling structure of a 25mm thread double-precut equiaxial circle is shown in figure 1, and hot-rolled ribbed steel bars are rolled by a lateral pressing pass structure 1, a precut first pass structure 2, a precut second pass structure 3, a slitting pass structure 4, a finished product front pass structure 5 and a finished product pass structure 6 respectively to complete two-slitting rolling.
On the specific implementation level, the design of double pre-cut isometric holes, the design of parallel connection circles of the cut holes and the design of an isometric coefficient method of finished product holes are included. The design of the double pre-cut equal-axis holes is completed by dividing the pre-cut split holes with deeper cutting grooves into two pre-cut split holes, and the concentrated deformation pressure is shared by the two pre-cut split holes to be borne, and meanwhile, the biting of rolled pieces is facilitated. The design of the parallel connection circle of the splitting holes is that the splitting wedge is used for exerting pressure on the connection belt of the pre-split rolled piece to further reduce the thickness of the connection part, the thickness of the connection belt is preferably 1.3-1.5mm, and the connection belt is rolled into two connection circles to prepare for tearing the rolled piece by the splitting wheel. The equiaxial coefficient design of the finished product hole is to distribute the area of the finished product hole by using a distribution elongation coefficient method to produce qualified products.
Because the rolling reduction of the double precut rolled pieces is small, the deformation pressure is dispersed, the requirement on equipment is low, and the motor with the power of 1000 kW can achieve the aim
The hot-rolled ribbed steel bar meets the requirement of two-slitting rolling, is convenient to operate, improves the yield and saves the cost.
The above-mentioned
The double-precut equiaxial circle double-slitting rolling structure of the thread can improve the productivity by 40 percentTherefore, the load cannot be added to the equipment, and the method is safe and convenient.
Example 2
A 25mm threaded double pre-cut equiaxial circle two-segment rolled structure, as shown in fig. 1, which is rolled by the following method: the hot-rolled ribbed steel bar is rolled through a side pressing pass structure 1, a pre-cut first pass structure 2, a pre-cut second pass structure 3, a splitting pass structure 4, a finished product front pass structure 5 and a finished product pass structure 6 to obtain the 25mm thread double-pre-cut equiaxial circle second splitting rolling structure.
The device for performing the rolling comprises a motor 7, a speed reducer 8 and a rolling mill 9, wherein the motor 7 is in transmission connection with the rolling mill 9 through the speed reducer 8, as shown in fig. 2.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the scope of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. A25 mm thread double-precut equiaxial circle double-slitting rolling structure is characterized in that the structure is rolled by the following method: the hot-rolled ribbed steel bar is rolled through a side pressing pass structure (1), a pre-cut first pass structure (2), a pre-cut second pass structure (3), a splitting pass structure (4), a finished product front pass structure (5) and a finished product pass structure (6) to obtain the 25mm thread double-pre-cut equiaxial circle second splitting rolling structure; the equipment for executing the rolling comprises a motor (7), a speed reducer (8) and a rolling mill (9), wherein the motor (7) is in transmission connection with the rolling mill (9) through the speed reducer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021710494.XU CN213559124U (en) | 2020-08-17 | 2020-08-17 | Two segmentation rolling structures of equiaxial circle are cut in two precuts of 25mm screw thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021710494.XU CN213559124U (en) | 2020-08-17 | 2020-08-17 | Two segmentation rolling structures of equiaxial circle are cut in two precuts of 25mm screw thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213559124U true CN213559124U (en) | 2021-06-29 |
Family
ID=76555131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021710494.XU Expired - Fee Related CN213559124U (en) | 2020-08-17 | 2020-08-17 | Two segmentation rolling structures of equiaxial circle are cut in two precuts of 25mm screw thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213559124U (en) |
-
2020
- 2020-08-17 CN CN202021710494.XU patent/CN213559124U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210629 |
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| CF01 | Termination of patent right due to non-payment of annual fee |