Inlet guide capable of cooling

Abstract

The utility model relates to the technical field of steel rolling guiding, in particular to a cooling inlet guide which comprises a box body and a guide pipe fixedly connected in the box body, a guide channel used for guiding a rolled piece is formed in the guide pipe, and a containing cavity allowing the guide pipe to penetrate through is formed in the box body. A heat dissipation cavity communicated with the containing cavity is formed between the guide pipe and the box body, and a water inlet and an overflow port which are communicated with the heat dissipation cavity are formed in the box body. The heat dissipation cavity is formed between the guide pipe and the box body, cooling of the peripheral side of the guide pipe is achieved, the guide pipe is provided with the through hole facilitating water flow to enter the guide channel, cooling of the inner peripheral side of the guide pipe is achieved, and the contact area of cooling water and the interior of the guide channel is enlarged along with conveying of a rolled piece in the guide channel; therefore, the overall cooling effect of the guide pipe is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of steel rolling guide, in particular to an inlet guide capable of cooling. BACKGROUND

[0002] Steel rolling is a kind of metal pressure processing technology, the shape of a rolled piece is changed through rotating rollers to obtain a required shape and specification of steel, and a rolling mill is a device for performing the steel rolling process.

[0003] The guide device is an important part of the rolling mill, which is used for ensuring that the rolled piece accurately enters the roller according to the specified position and direction, so as to avoid the deflection and distortion of the rolled piece in the rolling process. According to the installation position of the guide, the guide can be divided into an inlet guide and an outlet guide. The inlet guide comprises a box body and a guide pipe for guiding the conveying of the rolled piece. The guide pipe is fixedly connected in the box body. The box body is provided with a containing cavity for containing the guide pipe. The guide pipe extends out of the containing cavity from both ends of the box body. The guide pipe is provided with a guide channel for the rolled piece.

[0004] The inlet guide plays an important role in the rolling process of the rolled piece. The temperature of the rolled piece during rolling is usually above 1000 DEG C. The guide pipe directly contacts the rolled piece, which causes the guide pipe to be overheated. The long-time stay in the high-temperature environment accelerates the aging of the guide pipe, reduces the strength and wear resistance of the guide pipe, and affects the service life of the guide pipe. In order to ensure the production needs, the inlet guide is often replaced, which not only increases the production cost, but also affects the production efficiency of the rolling mill.

[0005] Therefore, a new type of inlet guide is needed to solve the problem of high temperature of the guide pipe, so as to prolong the service life of the inlet guide. CONTENT OF THE INVENTION

[0006] In order to prolong the service life of the inlet guide, the application provides an inlet guide capable of cooling.

[0007] The application provides an inlet guide capable of cooling, which adopts the following technical scheme:

[0008] The inlet guide capable of cooling comprises a box body and a guide pipe fixedly connected in the box body. The guide pipe is provided with a guide channel for guiding the rolled piece. The box body is provided with a containing cavity for penetrating the guide pipe. The guide pipe and the box body form a heat dissipation cavity in communication with the containing cavity. The box body is provided with a water inlet and a water overflow opening in communication with the heat dissipation cavity.

[0009] Through the above technical scheme, the cooling water contacts the outer peripheral surface of the guide pipe in the heat dissipation cavity. The heat of the guide pipe is transferred to the cooling water, and the temperature of the guide pipe is lowered. The cooling water absorbing heat is discharged through the water overflow opening, so as to ensure the continuous flow of the cooling water in the heat dissipation cavity, thereby continuously maintaining the cooling of the guide pipe and improving the heat dissipation efficiency of the inlet guide.

[0010] Optionally, a through hole is formed in the outer circumferential side of the guide pipe in the heat dissipation cavity and is communicated with the guide channel.

[0011] By using the above technical scheme, the cooling water enters the guide pipe through the through hole, ensuring the heat dissipation effect inside the guide pipe. With the conveying of the rolled piece in the guide channel, the contact area of the cooling water in the guide channel is expanded, thereby improving the cooling effect of the guide pipe.

[0012] Optionally, the heat dissipation cavity comprises a first groove arranged on the outer circumferential side of the guide pipe and a second groove arranged on the inner circumferential side of the box body, and the first groove is communicated with the second groove.

[0013] By using the above technical scheme, the first groove and the second groove are arranged, the volume of the heat dissipation cavity is increased, and the heat dissipation cavity can accommodate more cooling water, thereby improving the heat dissipation effect of the guide pipe.

[0014] Optionally, the overflow port is arranged on the top surface of the box body and is spaced apart along the conveying direction of the rolled piece.

[0015] By using the above technical scheme, multiple overflow ports are arranged to ensure that the cooling water that has absorbed heat can be quickly discharged, thereby providing space for new cooling water to enter the heat dissipation cavity. The overflow ports are arranged along the conveying direction of the rolled piece, and the cooling water discharged from the overflow ports can flow to the guide pipes at both ends of the box body, improving the utilization rate of the cooling water and further improving the heat dissipation effect of the guide pipe.

[0016] Optionally, a first guide groove is arranged on the top surface of the box body and is arranged along the conveying direction of the rolled piece, and the first guide groove is communicated with the overflow port.

[0017] By using the above technical scheme, the first guide groove guides the water flow discharged from the overflow port to flow to both ends of the box body, and then to both ends of the guide pipe, thereby ensuring the heat dissipation effect of both ends of the guide pipe outside the box body.

[0018] Optionally, the depth of the first guide groove gradually increases from one end connected to the overflow port to the other end.

[0019] By using the above technical scheme, after the water flow discharged from the overflow port enters the first guide groove, the water flow flows along the groove bottom of the first guide groove from high to low to both ends of the box body, thereby guiding more water flow to both ends of the guide pipe and further improving the cooling effect of both ends of the guide pipe.

[0020] Optionally, a second guide groove is arranged on the surface of the guide pipe outside the box body and is used to receive the cooling water discharged from the first guide groove, and the second guide groove is arranged along the conveying direction of the rolled piece.

[0021] By adopting the technical scheme, the second guide groove can smoothly receive the water flow from the first guide groove, and the cooling effect of the two ends of the guide pipe is further enhanced.

[0022] Optionally, the box body is provided with a locking piece for locking the box body and the guide pipe.

[0023] By adopting the technical scheme, the locking piece can ensure stable locking between the box body and the guide pipe, thereby ensuring the stability of the overall structure of the import guide.

[0024] To sum up, the present application has at least one of the following beneficial technical effects:

[0025] 1. The cooling water contacts the outer peripheral surface of the guide pipe in the heat dissipation cavity, the heat of the guide pipe is transferred to the cooling water, the temperature of the guide pipe is lowered, and the cooling water absorbing heat is discharged from the overflow port, ensuring the continuous flow of the cooling water in the heat dissipation cavity, thereby continuously maintaining the cooling of the guide pipe and improving the heat dissipation efficiency of the import guide;

[0026] 2. The cooling water enters the guide pipe through the through hole, ensuring the heat dissipation effect inside the guide pipe, and as the rolled piece is conveyed in the guide channel, the contact area of the cooling water with the guide channel is expanded, thereby improving the cooling effect of the guide pipe;

[0027] 3. Multiple overflow ports are arranged to ensure that the cooling water absorbing heat can be quickly discharged, thereby providing space for new cooling water to enter the heat dissipation cavity. The overflow port is arranged along the conveying direction of the rolled piece, and the cooling water discharged from the overflow port can flow to the guide pipes at both ends outside the box body, improving the utilization rate of the cooling water and further improving the heat dissipation effect of the guide pipe. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The structure of the embodiment of the present application is shown in the figure;

[0029] Figure 2 The cross-sectional view of the embodiment of the present application is used to show the constituting relationship of the heat dissipation cavity.

[0030] Reference signs: 1, box body; 2, guide pipe; 3, containing cavity; 4, guide channel; 5, heat dissipation cavity; 6, water inlet; 7, overflow port; 8, water tank; 9, water pump; 10, first groove; 11, second groove; 12, through hole; 13, first guide groove; 14, second guide groove; 15, locking piece; 16, threaded hole. DETAILED DESCRIPTION

[0031] The following will be described in detail in combination with the Figures 1-2 The present application will be further described in detail.

[0032] Embodiment:

[0033] A kind of import guide that can be cooled down, refer to Figure 1 And Figure 2 , including box 1 and the guide pipe 2 fixedly connected in box 1, box 1 plays the role of stable support to guide pipe 2 and entire import guide structure, box 1 is equipped with the containing cavity 3 containing guide pipe 2, containing cavity 3 is set along the direction of the rolling piece conveying, the both ends of guide pipe 2 are from containing cavity 3 to the both sides of box 1 outside, guide pipe 2 is set with the guide channel 4 for rolling piece to pass through, guide pipe 2 is used to guide rolling piece conveying, the cooling cavity 5 that is communicated with containing cavity 3 is formed between guide pipe 2 and box 1, the water inlet 6 and overflow 7 that are communicated with cooling cavity 5 are set on the surface of box 1, water inlet 6 is located at the top position of the side of box 1, overflow 7 is located at the top surface of box 1, cooling water for cooling guide pipe 2 is entered into cooling cavity 5 from water inlet 6, after cooling cavity 5 is filled with cooling water, it is discharged from the overflow 7 of the top surface of box 1, ensure the continuous flow of water flow in cooling cavity 5, in the embodiment, cooling water is water in normal temperature state, guide pipe 2 is contacted with rolling piece temperature rise, water flow is contacted with the outer circumferential side of guide pipe 2 in cooling cavity 5, the outer circumferential side of guide pipe 2 is cooled down, cooling water absorbs heat and is discharged through overflow 7, provides space for the normal temperature water flow newly entered in cooling cavity 5, the temperature of guide pipe 2 is reduced, ensure the cooling effect of guide pipe 2.

[0034] Refer to Figure 1 And Figure 2 , water tank 8 containing normal temperature water is connected to the outside of box 1, drive source is connected to water inlet 6 on water tank 8, in the embodiment, drive source is water pump 9, after driving water pump 9, normal temperature water is entered into cooling cavity 5 through water inlet 6 to cool down guide pipe 2, cooling cavity 5 includes first recess 10 and second recess 11, first recess 10 is formed by the outer circumferential side of guide pipe 2, second recess 11 is formed by the inner circumferential side of box 1, first recess 10 is communicated with second recess 11, increase the space of cooling cavity 5, so that the outer circumferential side of guide pipe 2 is fully contacted with normal temperature water, further enhance the cooling effect of guide pipe 2.

[0035] Refer to Figure 1 And Figure 2 , a plurality of through holes 12 are set on the outer circumferential side of guide pipe 2 along the circumferential direction of guide pipe 2, one end of through hole 12 is communicated with guide channel 4, the other end is communicated with cooling cavity 5, water flow enters guide channel 4 along through hole 12, realizes the cooling of the inner circumferential side of guide pipe 2, with the conveying of rolling piece, the contact range of inner circumferential side of guide pipe 2 and normal temperature water is further increased, further enhance the cooling effect of guide pipe 2 as a whole, and further enhance the performance of guide pipe 2.

[0036] Refer to Figure 1 And Figure 2The overflow port 7 is provided with a plurality of overflow ports along the rolling piece conveying direction, which ensures that the water flow in the heat dissipation cavity 5 is discharged in time and flows to both ends of the pipe 2 outside the box body 1, guarantees the cooling effect of both ends of the pipe 2, and improves the utilization rate of normal temperature water. The top surface of the box body 1 is recessed to form a first guide groove 13 provided along the rolling piece conveying direction. The first guide groove 13 is a long strip-shaped groove, and the first guide groove 13 is communicated with the overflow port 7. The water discharged from the overflow port 7 is guided by the first guide groove 13 and flows more accurately to both ends of the pipe 2. The groove depth of the first guide groove 13 gradually deepens from one end connected to the overflow port 7 to the other end, which facilitates the water flow to flow to both ends of the box body 1. Both ends of the pipe 2 are lower than the box body 1, so that the water flow is guided to both ends of the pipe 2. The surface of the pipe 2 is recessed to form a second guide groove 14. The second guide groove 14 is a flow guide groove provided along the surface contour of the pipe 2 and has an upward opening. The second guide groove 14 is provided along the conveying direction of the rolling piece and is opposite to the first guide groove 13, which facilitates the second guide groove 14 to smoothly receive the water flow from the first guide groove 13, and further enhances the cooling effect of both ends of the pipe 2.

[0037] Reference Figure 1 Figure 2 The box body 1 is provided with a locking member 15 for locking the pipe 2 and the box body 1. In this embodiment, the locking member 15 is a bolt. The pipe 2 and the box body 1 are provided with thread holes 16 which are matched in size and shape and opposite in position. The bolt is threadedly connected in the thread hole 16, thereby realizing the locking of the box body 1 and the pipe 2, facilitating the disassembly and replacement of the box body 1 and the pipe 2. The box body 1 and the pipe 2 are provided with a plurality of thread holes 16. Each thread hole 16 is threadedly connected with a bolt, thereby strengthening the locking effect of the box body 1 and the pipe 2.

[0038] The implementation principle of the embodiment of the present application is as follows: the water pump 9 is started, the normal temperature water in the water tank 8 enters the heat dissipation cavity 5 from the water inlet 6, the water flow contacts the outer peripheral side of the pipe 2, thereby realizing the cooling of the outer peripheral side of the pipe 2. The water flow enters the guide channel 4 along the through hole 12, thereby realizing the cooling of the inner peripheral side of the pipe 2. With the conveying of the rolling piece, the contact range of the inner peripheral side of the pipe 2 and the normal temperature water is further increased. With the continuous entry of the normal temperature water into the heat dissipation cavity 5, the water flow absorbing heat is discharged from the overflow port 7 on the top surface of the box body 1. The water discharged from the overflow port 7 flows along the first guide groove 13 to both ends of the pipe 2 outside the box body 1, thereby realizing the heat dissipation of the pipe 2 outside the box body 1. The second guide groove 14 on the pipe 2 receives the water flow from the first guide groove 13, thereby ensuring that the contact range of both ends of the pipe 2 and the water flow is further increased, and further enhancing the cooling effect of both ends of the pipe 2.

[0039] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A temperature-reducing entry guide, comprising a box body (1) and a guide pipe (2) fixedly connected in the box body (1), a guide channel (4) for guiding a rolled piece being formed in the guide pipe (2), and a containing cavity (3) for the guide pipe (2) to pass through being formed in the box body (1), characterized in that: The conduit (2) and the box body (1) form a heat dissipation cavity (5) in communication with the containing cavity (3), the box body (1) is provided with a water inlet (6) and a water overflow port (7) in communication with the heat dissipation cavity (5).

2. A quenchable entry guide according to claim 1, wherein: The outer circumferential side of the conduit (2) located in the heat dissipation cavity (5) is provided with a through hole (12) in communication with the guide channel (4).

3. A quenchable entry guide according to claim 1, wherein: The heat dissipation cavity (5) comprises a first groove (10) arranged on the outer circumferential side of the conduit (2) and a second groove (11) arranged on the inner circumferential side of the box body (1), and the first groove (10) is in communication with the second groove (11).

4. A quenchable entry guide according to claim 1, wherein: The water overflow port (7) is arranged on the top surface of the box body (1) and is spaced apart along the rolling piece conveying direction.

5. A quenchable entry guide according to claim 4, wherein: The top surface of the box body (1) is recessed to form a first guide groove (13) arranged along the rolling piece conveying direction, and the first guide groove (13) is in communication with the water overflow port (7).

6. A quenchable entry guide according to claim 5, wherein: The groove depth of the first guide groove (13) gradually deepens from one end connected to the water overflow port (7) to the other end.

7. A quenchable entry guide according to claim 6, wherein: The surface of the conduit (2) located outside the box body (1) is recessed to form a second guide groove (14) for receiving the cooling water flowing out of the first guide groove (13), and the second guide groove (14) is arranged along the rolling piece conveying direction.

8. A quenchable entry guide according to claim 1 wherein: The box body (1) is provided with a locking member (15) for locking the box body (1) and the conduit (2).

Images