CN215320468U

CN215320468U - Rotary cooling sizing sleeve for large-diameter pipe

Info

Publication number: CN215320468U
Application number: CN202120755128.4U
Authority: CN
Inventors: 李洪志
Original assignee: LIANSU TECHNOLOGY DEVELOPMENT (WUHAN) CO LTD
Current assignee: LIANSU TECHNOLOGY DEVELOPMENT (WUHAN) CO LTD
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-12-28
Anticipated expiration: 2031-04-13

Abstract

The utility model relates to a rotary cooling sizing sleeve for a large-diameter pipe, which comprises a sizing sleeve main body, a fixing plate, a pressing plate, a cooling sleeve, a fixing seat, a pressing cover, a rotary sleeve and a driving device, wherein the fixing plate is arranged on the sizing sleeve main body; the fixed seat is connected with the fixed plate, and two ends of the cooling jacket are respectively connected with the fixed seat and the gland; the rotating sleeve is sleeved on the cooling sleeve and rotates relative to the cooling sleeve; the fixed seat and the gland are used for pressing the rotating sleeve on the cooling sleeve; the gland is provided with the water inlet, and the rotary sleeve is provided with the circulation chamber with the water inlet intercommunication, and the cooling jacket is provided with the cooling chamber with circulation chamber intercommunication. After cooling water enters the rotary sleeve through the gland, the cooling water is enabled to uniformly flow in the flow cavity and enter the cooling cavity to exchange heat with the pipe under the action of the rotary sleeve, and because the water quantity of the cooling water in each part of the cooling cavity is equal, the heat exchange efficiency of each part of the inner ring of the cooling sleeve is equal, the pipe is uniformly cooled, the sizing effect of the large-diameter pipe is better, and the quality of a product is ensured.

Description

Rotary cooling sizing sleeve for large-diameter pipe

Technical Field

The utility model relates to the field of pipe production equipment, in particular to a rotary cooling shaping sleeve for a large-caliber pipe.

Background

The general production mode for producing the PVC water supply pipe is a mode of extruding a pipe blank by adopting an extrusion die head, stretching and drawing by a tractor, shaping by a cooling shaping sleeve and simultaneously spraying and cooling. If the publication number is 'CN 206579119U', an inner-open type powerful jet sizing sleeve disclosed in Chinese patent document with publication date of 24.10.2017 comprises a flange component and a cooling pipe body, wherein a feed hole is formed in the middle of the flange component, a plurality of through holes are formed in the side wall of the cooling pipe body, the inner-open type powerful jet sizing sleeve further comprises a fixing part, the cooling pipe body is fixedly butted with the feed hole through the fixing part, a water inlet cavity connected with external water supply equipment is formed in the flange component, and the water inlet cavity is connected with the external water supply equipment through a plurality of water inlet nozzles distributed circumferentially. The wall of the hole, opposite to the wall of the cooling pipe body, of the feeding hole is provided with a plurality of cooling holes, the plurality of cooling holes are communicated with the inner cavity of the water inlet cavity, the whole cooling effect of the sizing sleeve is good, the inner wall of the copper sleeve can be kept clean, the service time of the copper sleeve is prolonged, the number of times of cleaning the copper sleeve is reduced, and the production efficiency is improved.

In the production of a large-caliber water supply pipe, the quantity of circumferentially distributed water inlets can be increased along with the increase of the quantity of water, and the water supply quantity of water supply equipment connected with the water inlets is fixed, so that the water pressure of each water inlet is different, namely the water inlet quantity of each water inlet is inconsistent, the water flow between the water inlets in a water inlet cavity is inconsistent, the space cooling effect between the water nozzles cannot meet the production requirement, and the pipe cannot be uniformly cooled and shaped, so that the production quality of the pipe is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem of uneven cooling of the existing sizing sleeve for cooling the large-diameter pipe, and provides the rotary cooling sizing sleeve for the large-diameter pipe, so that cooling water can uniformly flow around the pipe, and the effect of uniform cooling and sizing is achieved.

In order to solve the technical problems, the utility model adopts the technical scheme that: a rotary cooling sizing sleeve for a large-diameter pipe comprises a sizing sleeve main body, a fixing plate and a pressing plate which are respectively arranged at two ends of the sizing sleeve main body, a cooling sleeve, a fixing seat, a pressing cover, a rotary sleeve and a driving device for driving the rotary sleeve to rotate; the pressure plate is used for fixing the sizing sleeve main body to the cooling water tank, and the fixing plate is connected with the pressure plate through a pull rod; the fixed seat is connected with the fixed plate, one end of the cooling jacket is connected with the fixed seat, and the other end of the cooling jacket is connected with the gland; the inner diameters of the cooling sleeve and the sizing sleeve are the same and are arranged coaxially; the rotating sleeve is sleeved on the cooling sleeve and rotates relative to the cooling sleeve; the fixed seat and the gland are used for pressing the rotating sleeve on the cooling sleeve; the gland is provided with a plurality of water inlets distributed circumferentially, the rotary sleeve is provided with a circulation cavity communicated with the water inlets, and the cooling sleeve is provided with a cooling cavity communicated with the circulation cavity.

In the technical scheme, the cooling sleeve is spliced with the tail end of the sizing sleeve main body close to one side of the fixing plate after being installed, and the pipe can be cooled by exchanging heat with the cooling sleeve when passing through the cooling sleeve. The rotary sleeve is sleeved on the cooling sleeve, the inner ring of the rotary sleeve is in contact with the outer ring of the cooling sleeve, one end of the outer ring of the rotary sleeve is in contact with the inner ring of the fixed seat, and the other end of the outer ring of the rotary sleeve is also in contact with the inner ring of the gland, so that the rotary sleeve is positioned in a space formed among the cooling sleeve, the fixed seat and the gland and can rotate around the axis of the rotary sleeve in the space. The water inlet is connected with outside water supply equipment, and cooling water flows into to the circulation intracavity from the water inlet, and drive arrangement drive swivel sleeve rotates, and cooling water can rotate along with the swivel sleeve, makes the intracavity of circulation everywhere the water yield keep unanimous, and the hydroenergy of circulation chamber can evenly flow into the cooling chamber, makes the cooling effect of every position in cooling chamber keep unanimous, satisfies the requirement of production.

Preferably, the driving device is a motor, and the driving device can drive the rotating sleeve to rotate through gear rotation, belt transmission and chain transmission. The more preferred mode is chain transmission, and the rotational resistance of rotary sleeve is great, uses chain transmission to guarantee that the transmission is stable and can long distance transmission, and the drive arrangement of being convenient for. Specifically, a driving chain wheel is arranged on an output shaft of the motor; the outer surface of the rotating sleeve is provided with a gear ring; the driving chain wheel is connected with the gear ring through a chain.

Preferably, a first sealing ring and a second sealing ring are respectively arranged at two ends of the outer surface of the cooling jacket; the outer rings of the first sealing ring and the second sealing ring are abutted to the inner wall of the rotary sleeve. The first sealing ring and the second sealing ring seal a gap between the cooling jacket and the rotating jacket, and cooling water in the cooling jacket or the rotating jacket is prevented from leaking.

Preferably, the first sealing ring is abutted against the fixed seat, so that the first sealing ring is prevented from moving outwards to be separated from the cooling jacket; the gland is provided with be used for with the chucking part of second sealing washer butt avoids first sealing washer to move to the outside and leads to breaking away from the cooling jacket.

Preferably, a third sealing ring and a fourth sealing ring are respectively arranged at two ends of the outer surface of the rotating sleeve; and the outer rings of the third sealing ring and the fourth sealing ring are respectively abutted against the inner walls of the fixed seat and the gland. The first sealing ring and the second sealing ring on the outer surface of the rotary sleeve seal the gaps between the rotary sleeve and the fixed seat and between the rotary sleeve and the gland, and the cooling water in the rotary sleeve is prevented from leaking outwards.

Preferably, the bottom of the gland is provided with a fifth sealing ring which is used for being abutted to the cooling jacket, so that the sealing performance between the gland and the cooling jacket is improved.

Preferably, the circulation cavity comprises a plurality of annular grooves arranged on the inner wall of the rotary sleeve and a plurality of flow passages penetrating through the annular grooves; the flow channel is communicated with the water inlet; the annular grooves are communicated with the cooling cavity. The flow channel is a cavity arranged in the rotating sleeve, and water from all the water inlets enters the flow channel and then enters the cooling cavity from the flow channel along different annular grooves.

Preferably, the cooling cavity comprises an annular cavity arranged on the outer surface of the cooling jacket and a plurality of flow cavities penetrating through the annular cavity; one end of the flow cavity is used for being communicated with the cooling water tank. And cooling water enters the annular cavity and exchanges heat with the inner surface of the cooling sleeve to cool the pipe passing through the inner surface of the cooling sleeve. The fixed plate can be provided with the through-hole of intercommunication coolant tank, and the chamber that flows is in the connected state with the through-hole, and cooling water can flow into coolant tank through the through-hole from the chamber that flows, realizes the cooling water circulation.

Preferably, a step part is arranged at the tail end of the sizing sleeve main body close to one side of the pressure plate; the cooling jacket is provided with a clamping groove matched with the step part. The clamping groove is matched and butted with the step part, so that the cooling sleeve can be more attached to the sizing sleeve main body.

Preferably, the inner ring of the gland is trumpet-shaped. The inner diameter of one end, close to the cooling sleeve, of the inner ring of the gland is smaller and is consistent with the inner diameter of the cooling sleeve, and when a pipe enters the sizing sleeve, the horn-shaped inner ring of the gland enables the pipe to pass through and enter the sizing sleeve main body more easily.

Compared with the prior art, the utility model has the beneficial effects that: after cooling water enters the rotary sleeve through the gland, the cooling water is enabled to uniformly flow in the flow cavity and enter the cooling cavity to exchange heat with the pipe under the action of the rotary sleeve, and because the water quantity of the cooling water in each part of the cooling cavity is equal, the heat exchange efficiency of each part of the inner ring of the cooling sleeve is equal, the pipe is uniformly cooled, the sizing effect of the large-diameter pipe is better, and the quality of a product is ensured.

Drawings

FIG. 1 is a schematic structural view of a rotary cooling sizing sleeve for heavy caliber pipe of the present invention;

fig. 2 is a partially enlarged view of a position a of fig. 1.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The technical scheme of the utility model is further described in detail by the following specific embodiments in combination with the attached drawings:

examples

As shown in fig. 1-2, an embodiment of a rotary cooling sizing sleeve for a large-diameter pipe includes a sizing sleeve main body 1, a fixing plate 2 and a pressing plate 3 respectively disposed at two ends of the sizing sleeve main body 1, a cooling sleeve 4, a fixing seat 5, a pressing cover 6, a rotary sleeve 7, and a driving device 8 for driving the rotary sleeve 7 to rotate; the pressing plate 3 is used for fixing the sizing sleeve main body 1 to the cooling water tank, and the fixing plate 2 is connected with the pressing plate 3 through a pull rod; the fixed seat 5 is connected with the fixed plate 2, one end of the cooling jacket 4 is connected with the fixed seat 5, and the other end is connected with the gland 6; the inner diameters of the cooling sleeve 4 and the sizing sleeve are the same and are arranged coaxially; the rotating sleeve 7 is sleeved on the cooling sleeve 4 and rotates relative to the cooling sleeve 4; the fixed seat 5 and the gland 6 are used for pressing the rotating sleeve 7 on the cooling sleeve 4; the gland 6 is provided with a plurality of water inlets 601 distributed circumferentially, the rotary sleeve 7 is provided with a circulation cavity 701 communicated with the water inlets 601, and the cooling sleeve 4 is provided with a cooling cavity 401 communicated with the circulation cavity 701.

Specifically, the driving device 8 is a motor, and a driving sprocket 801 is installed on an output shaft of the motor; the outer surface of the rotating sleeve 7 is provided with a gear ring 702; the drive sprocket 801 is connected to the ring gear 702 by a chain.

Wherein, a first sealing ring 402 and a second sealing ring 403 are respectively arranged at two ends of the outer surface of the cooling jacket 4; the outer rings of the first seal 402 and the second seal 403 are both in contact with the inner wall of the rotary sleeve 7. The first seal ring 402 and the second seal ring 403 seal the gap between the cooling jacket 4 and the rotary jacket 7, and prevent the cooling water in the cooling jacket 4 or the rotary jacket 7 from leaking. The first sealing ring 402 is abutted against the fixed seat 5, so that the first sealing ring 402 is prevented from being separated from the cooling jacket 4 due to outward movement; the cover 6 is provided with a clamping portion 602 for abutting against the second seal ring 403 to prevent the first seal ring 402 from moving outward and separating from the cooling jacket 4. A third sealing ring 703 and a fourth sealing ring 704 are respectively arranged at two ends of the outer surface of the rotating sleeve 7; the outer rings of the third sealing ring 703 and the fourth sealing ring 704 are respectively abutted against the inner walls of the fixed seat 5 and the gland 6. The first sealing ring 402 and the second sealing ring 403 on the outer surface of the rotating sleeve 7 seal the gap between the rotating sleeve 7 and the fixed seat 5 and the gland 6, and prevent the cooling water in the rotating sleeve 7 from leaking outwards. The bottom of the gland 6 is provided with a fifth sealing ring 603 for abutting against the cooling jacket 4, so that the sealing performance between the gland 6 and the cooling jacket 4 is improved.

The circulation cavity 701 comprises a plurality of annular grooves 7011 arranged on the inner wall of the rotary sleeve 7 and a flow passage cavity 7012 penetrating through the annular grooves 7011; the flow passage cavity 7012 is communicated with the water inlet 601; the annular grooves 7011 each communicate with the cooling chamber 401. The flow passage chamber 7012 is a hollow chamber arranged in the rotary sleeve 7, and all water from the water inlet 601 enters the flow passage chamber 7012 and then enters the cooling chamber 401 from the flow passage chamber 7012 along different annular grooves 7011. The cooling cavity 401 comprises an annular cavity 4011 arranged on the outer surface of the cooling jacket 4 and a plurality of flow cavities 4012 penetrating through the annular cavity 4011; one end of the flow chamber 4012 is used to communicate with a cooling water tank. After entering the annular cavity 4011, the cooling water exchanges heat with the inner surface of the cooling jacket 4, and cools the pipe passing through the inner surface of the cooling jacket 4. The fixed plate 2 can be provided with the through-hole of intercommunication coolant tank, and the chamber 4012 that flows is in the connected state with the through-hole, and coolant water can flow into coolant tank through the through-hole from the chamber 4012 that flows, realizes the cooling water circulation.

In addition, the tail end of the sizing sleeve main body 1 close to the side of the pressure plate 3 is provided with a step part 101; the cooling jacket 4 is provided with an engagement groove 404 into which the stepped portion 101 is engaged. The engagement groove 404 is in mating abutment with the stepped portion 101, so that the cooling jacket 4 can be more closely fitted to the sizing sleeve body 1. The inner ring of the gland 6 is trumpet-shaped. The inner diameter of one end, close to the cooling sleeve 4, of the inner ring of the gland 6 is smaller and is consistent with the inner diameter of the cooling sleeve 4, and when a pipe enters the sizing sleeve, the pipe can more easily pass through the trumpet-shaped inner ring of the gland 6 and enters the sizing sleeve main body 1.

The working principle or working process of the utility model is as follows: the cooling jacket 4 is spliced with the tail end, close to one side of the fixing plate 2, of the sizing jacket main body 1 after installation, and the pipe can be cooled through heat exchange with the cooling jacket 4 when passing through the cooling jacket 4. The rotating sleeve 7 is sleeved on the cooling sleeve 4, the inner ring of the rotating sleeve 7 is in contact with the outer ring of the cooling sleeve 4, one end of the outer ring of the rotating sleeve 7 is in contact with the inner ring of the fixed seat 5, and the other end of the outer ring of the rotating sleeve 7 is also in contact with the inner ring of the gland 6, so that the rotating sleeve 7 is positioned in a space formed among the cooling sleeve 4, the fixed seat 5 and the gland 6 and can rotate around the axis of the space. The water inlet 601 is connected with external water supply equipment, cooling water flows into the circulation cavity 701 from the water inlet 601, the driving device 8 drives the rotary sleeve 7 to rotate, the cooling water can rotate along with the rotary sleeve 7, the water quantity of each position in the circulation cavity 701 is kept consistent, the water in the circulation cavity 701 can uniformly flow into the cooling cavity 401, the cooling effect of each position of the cooling cavity 401 is kept consistent, and the production requirement is met.

The beneficial effects of this embodiment: after cooling water enters the rotary sleeve 7 through the gland 6, the cooling water uniformly flows in the flowing cavity 701 and enters the cooling cavity 401 to exchange heat with the pipe under the action of the rotary sleeve 7, and because the water amount of each part of the cooling water in the cooling cavity 401 is equal, the heat exchange efficiency of each part of the inner ring of the cooling sleeve 4 is equal, the pipe is uniformly cooled, the sizing effect of the large-caliber pipe is better, and the quality of a product is ensured.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A rotary cooling sizing sleeve for a large-diameter pipe comprises a sizing sleeve main body (1), and a fixing plate (2) and a pressing plate (3) which are respectively arranged at two ends of the sizing sleeve main body (1), wherein the pressing plate (3) is used for fixing the sizing sleeve main body (1) to a cooling water tank, and the fixing plate (2) is connected with the pressing plate (3) through a pull rod, and is characterized by further comprising a cooling sleeve (4), a fixing seat (5), a pressing cover (6), a rotary sleeve (7) and a driving device (8) for driving the rotary sleeve (7) to rotate; the fixed seat (5) is connected with the fixed plate (2), one end of the cooling jacket (4) is connected with the fixed seat (5), and the other end of the cooling jacket is connected with the gland (6); the inner diameters of the cooling sleeve (4) and the sizing sleeve are the same and are arranged coaxially; the rotating sleeve (7) is sleeved on the cooling sleeve (4) and rotates relative to the cooling sleeve (4); the fixed seat (5) and the gland (6) are used for pressing the rotating sleeve (7) on the cooling sleeve (4); the gland (6) is provided with a plurality of water inlets (601) which are distributed in the circumferential direction, the rotary sleeve (7) is provided with a circulation cavity (701) communicated with the water inlets (601), and the cooling sleeve (4) is provided with a cooling cavity (401) communicated with the circulation cavity (701).

2. The rotary cooling sizing sleeve for the large-caliber pipe material as claimed in claim 1, wherein the driving device (8) is a motor, and a driving sprocket (801) is mounted on an output shaft of the motor; a gear ring (702) is arranged on the outer surface of the rotating sleeve (7); the driving chain wheel (801) is connected with the gear ring (702) through a chain.

3. The rotary cooling sizing sleeve for the large-caliber pipe material as claimed in claim 1, wherein a first sealing ring (402) and a second sealing ring (403) are respectively arranged at two ends of the outer surface of the cooling sleeve (4); the outer rings of the first sealing ring (402) and the second sealing ring (403) are abutted against the inner wall of the rotating sleeve (7).

4. A rotary cooling sizing sleeve for heavy caliber pipes according to claim 3, wherein the first sealing ring (402) is abutted with the fixed seat (5); the gland (6) is provided with a clamping part (602) which is used for being abutted against the second sealing ring (403).

5. The rotary cooling sizing sleeve for the large-caliber pipe according to claim 3, wherein a third sealing ring (703) and a fourth sealing ring (704) are respectively arranged at two ends of the outer surface of the rotary sleeve (7); the outer rings of the third sealing ring (703) and the fourth sealing ring (704) are respectively abutted against the inner walls of the fixed seat (5) and the gland (6).

6. A rotary cooling sizing sleeve for large diameter pipes according to claim 5, characterized in that the bottom of the gland (6) is provided with a fifth sealing ring (603) for abutting against the cooling sleeve (4).

7. The rotary cooling sizing sleeve for the large-caliber pipe according to claim 1, wherein the circulation cavity (701) comprises a plurality of annular grooves (7011) arranged on the inner wall of the rotary sleeve (7) and a flow passage cavity (7012) penetrating through the annular grooves (7011); the flow channel cavity (7012) is communicated with the water inlet (601); the annular grooves (7011) are all communicated with the cooling cavity (401).

8. The rotary cooling sizing sleeve for large-caliber pipes according to claim 7, wherein the cooling cavity (401) comprises an annular cavity (4011) arranged on the outer surface of the cooling sleeve (4) and a plurality of flow cavities (4012) penetrating through the annular cavity (4011); one end of the flow cavity (4012) is used for communicating with a cooling water tank.

9. The rotary cooling sizing sleeve for the large-caliber pipe according to any one of claims 1 to 8, wherein the end of the sizing sleeve main body (1) close to one side of the pressure plate (3) is provided with a step part (101); the cooling jacket (4) is provided with a clamping groove (404) matched with the step part (101).

10. A rotary cooling sizing sleeve for large diameter pipes according to claim 9, wherein the inner ring of the gland (6) is trumpet shaped.