CN114669416A - Spraying and winding thermal insulation pipe spraying rotary clamp and clamping method - Google Patents
Spraying and winding thermal insulation pipe spraying rotary clamp and clamping method Download PDFInfo
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- CN114669416A CN114669416A CN202210174663.XA CN202210174663A CN114669416A CN 114669416 A CN114669416 A CN 114669416A CN 202210174663 A CN202210174663 A CN 202210174663A CN 114669416 A CN114669416 A CN 114669416A
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- spraying
- positioning
- steel pipe
- sprayed
- rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
- B05B13/0228—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the movement of the objects being rotative
Abstract
The invention belongs to the technical field of spraying thermal insulation pipe production, and particularly relates to a spraying rotary fixture for a spraying wound thermal insulation pipe and a clamping method, wherein the spraying rotary fixture comprises a socket sleeve with the outer diameter smaller than that of a steel pipe to be sprayed, one end of the socket sleeve is used for being connected with a rotating shaft of a rotary trolley, the other end of the socket sleeve is provided with at least two positioning rods and at least two tightening rods which are continuously arranged along the circumferential direction, and the axial directions of the positioning rods and the tightening rods are pushed along the radial direction of the socket sleeve; the arc chord length formed by any two positioning rods along the circumference is smaller than the diameter of the circumference, the arc formed by connecting the tops of the positioning rods is pushed to coincide with the inner wall of the steel pipe to be sprayed for positioning, and the jacking rod and the positioning rods are pushed to jointly support the inner wall of the steel pipe to be sprayed; the invention ensures that the steel pipe to be sprayed and the socket sleeve are concentric by positioning the arc formed by connecting the tops of the positioning rods and the inner wall of the steel pipe to be sprayed by superposition through pushing of the positioning rods.
Description
Technical Field
The invention belongs to the technical field of spraying thermal insulation pipe production, and particularly relates to a spraying rotary clamp for a spraying winding thermal insulation pipe and a clamping method.
Background
In the production process of spraying the heat preservation pipe, the steel pipe needs to be placed on the two rotary trolleys during spraying. And rotating the steel pipe by using a rotating trolley and simultaneously controlling the steel pipe to advance or retreat so as to spray polyurethane in a spraying area by using a spray gun.
In order to realize the clamping of the rotary trolley on the steel pipe to be sprayed, an oil cylinder (or air cylinder) expansion clamp is arranged on a rotating shaft of the rotary trolley, a plurality of tightening rods which are uniformly distributed are arranged on the clamp along the circumferential direction of the rotating shaft, and each tightening rod corresponds to one oil cylinder (or air cylinder). After the steel pipe to be sprayed is sleeved, the radial expansion of the tightening rod is realized through the driving of an oil cylinder (or an air cylinder), and then the tightening of the steel pipe to be sprayed by the clamp is realized.
But this mode is placing after treating the spraying steel pipe, when using hydro-cylinder (or cylinder) to expand the tightening rod, because the phenomenon of asynchronism appears in a plurality of hydro-cylinders (or cylinder) motion, corresponding tightening rod's radial expansion also can appear asynchronism, causes to treat the rotation axis decentraction of spraying steel pipe and rotatory platform truck, and then causes the polyurethane after the steel pipe spraying eccentric, influences the spraying quality.
Disclosure of Invention
The invention aims to provide a spraying rotary clamp for spraying and winding a thermal insulation pipe and a clamping method, and aims to solve the problem that a rotating shaft of a steel pipe to be sprayed and a rotary trolley are eccentric due to asynchronous expansion of an existing oil cylinder (or air cylinder) expansion clamp. In order to achieve the above object, the present invention is achieved by the following technical solutions:
The spraying rotary fixture comprises a socket sleeve with the outer diameter smaller than that of a steel pipe to be sprayed, wherein one end of the socket sleeve is connected with a rotating shaft of a rotary trolley, the other end of the socket sleeve is provided with at least two positioning rods and at least two tightening rods, the positioning rods and the tightening rods are continuously arranged in the circumferential direction, and the axial directions of the positioning rods and the tightening rods are pushed in the radial direction of the socket sleeve;
the arc chord length formed by any two positioning rods along the circumference is smaller than the diameter of the circumference, the arc formed by connecting the tops of the positioning rods is pushed to coincide with the inner wall of the steel pipe to be sprayed for positioning, and the jacking rods and the positioning rods support the inner wall of the steel pipe to be sprayed together.
As a further technical scheme, the positioning rods and the jacking rods are the same in number and are symmetrically arranged one by one relative to the diameter of the socket sleeve.
As a further technical scheme, the socket sleeve is provided with a hole matched with the positioning rod and the jacking rod, and the positioning rod and the jacking rod penetrate through the hole to be pushed.
As a further technical scheme, the jacking rod is provided with a drive and a first support with a through hole, the first support is fixed with the inner wall of the socket sleeve, and the jacking rod penetrates through the through hole to be pushed under the action of the drive.
As a further technical scheme, the driving is an oil cylinder or an air cylinder.
As a further technical scheme, the positioning rod is a threaded rod, a second support is configured on the positioning rod, a threaded hole matched with the threaded rod is formed in the second support, and the second support is fixed with the inner wall of the socket sleeve.
As a further technical scheme, a scale is arranged on the second support and is in the same direction as the axial direction of the positioning rod.
As a further technical scheme, the top of the positioning rod and the top of the jacking rod are provided with detachable supporting blocks, and the top end faces of the supporting blocks are matched with the inner wall of the steel pipe to be sprayed.
As a further technical scheme, the top end face of the supporting block is provided with a diamond pattern.
In a second aspect, the invention provides a clamping method of the spraying rotary clamp for the spraying winding thermal insulation pipe in the first aspect, which comprises the following steps:
according to the difference between the inner diameter of the steel pipe to be sprayed and the outer diameter of the socket sleeve, the pushing height of the positioning rod is determined, so that an arc formed by connecting the tops of the positioning rod can coincide with the inner wall of the steel pipe to be sprayed, the steel pipe to be sprayed is hoisted to be in socket fit with the socket sleeve, the top of the positioning rod is abutted and contacted with the inner wall of the steel pipe to be sprayed, concentric positioning with the socket sleeve is realized, and the pushing jacking rod and the positioning rod support the inner wall of the steel pipe to be sprayed together.
The beneficial effects of the invention are as follows:
(1) the steel pipe spraying device is provided with the radial pushing positioning rod and the jacking rod, the arc formed by connecting the tops of the positioning rods is coincided with the inner wall of the steel pipe to be sprayed for positioning through pushing of the positioning rods, the steel pipe to be sprayed is ensured to be concentric with the socket sleeve, the steel pipe to be sprayed is further ensured to be concentric with the rotating shaft of the rotating trolley, the steel pipe to be sprayed is supported together under the matching of the jacking rod and the positioning rods through pushing expansion of the jacking rod, expansion and support are realized on the premise of ensuring concentricity, and the spraying quality of polyurethane is further improved.
(2) The arc chord length formed by any two positioning rods along the circumference is smaller than the diameter of the circumference, so that the adjusted positioning rods and the socket sleeve can smoothly enter the steel pipe to be sprayed, the socket matching time is shortened, and the efficiency is improved.
(3) According to the invention, the positioning rods and the jacking rods are the same in quantity and are symmetrically arranged one by one relative to the diameter of the socket sleeve, namely one positioning rod and one jacking rod are symmetrically arranged, and the jacking rods can generate reverse supporting force with the positioning rods in the jacking process, so that the uniform stress of the whole body is ensured, and the steel pipe to be sprayed and the socket sleeve are ensured to be better kept concentric in the jacking process.
(4) According to the invention, the hole is designed on the socket sleeve, the positioning rod and the jacking rod are pushed through the hole, and the auxiliary fittings of the positioning rod and the jacking rod can be arranged on the inner wall of the socket sleeve, so that the occupation of the installation space is reduced, the gap between the socket sleeve and the steel pipe to be sprayed is reduced, and the working stability of the positioning rod and the jacking rod is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the invention and not to limit the invention. It will be further appreciated that the drawings are for simplicity and clarity and have not necessarily been drawn to scale. The invention will now be described and explained with additional specificity and detail through the use of the accompanying drawings in which:
fig. 1 shows a schematic view of the overall structure of the rotary jig of the present invention.
In the figure: 1. spraying a steel pipe; 2. a support block; 3. a second support; 4. positioning a rod; 5. an oil cylinder; 6. a socket sleeve; 7. a scale; 8. a tightening rod; 9. a first support.
Detailed Description
The technical solutions in the exemplary embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in fig. 1, the spraying rotary fixture for spraying and winding a thermal insulation pipe provided by the embodiment comprises a socket sleeve 6 with an outer diameter smaller than that of a steel pipe 1 to be sprayed, wherein one end of the socket sleeve 6 is used for being connected with a rotating shaft of a rotary trolley, the other end of the socket sleeve is provided with at least two positioning rods 4 and at least two tightening rods 8 which are continuously arranged along the circumferential direction, and the axial directions of the positioning rods 4 and the tightening rods 8 are pushed along the radial direction of the socket sleeve 6;
The chord length of an arc formed by any two positioning rods 4 along the circumference is smaller than the diameter of the circumference, the arc formed by connecting the tops of the pushing positioning rods 4 is superposed with the inner wall of the steel pipe 1 to be sprayed for positioning, and the pushing tightening rod 8 and the positioning rods 4 jointly support the inner wall of the steel pipe 1 to be sprayed.
The radial pushing positioning rod 4 and the jacking rod 8 are arranged, the arc formed by connecting the tops of the positioning rod 4 is positioned by being overlapped with the inner wall of the steel pipe to be sprayed 1 through pushing of the positioning rod 4, the steel pipe to be sprayed 1 and the socket sleeve 6 are ensured to be concentric, and the steel pipe to be sprayed 1 is supported together through pushing of the jacking rod 8 under the matching of the positioning rod.
Because the steel pipe 1 to be sprayed is sleeved in the socket sleeve 6 after the positioning height of the positioning rod 4 is adjusted, in order to ensure that the adjusted positioning rod 4 and the socket sleeve smoothly enter the steel pipe 1 to be sprayed, the arc chord length formed by any two positioning rods 4 along the circumference is smaller than the diameter of the circumference.
In this embodiment, the number of the positioning rods 4 and the number of the tightening rods 8 are three, but it is understood that in other embodiments, the number of the positioning rods 4 and the number of the tightening rods 8 may also be two, or more than three, etc., which is not limited to three disclosed in this embodiment, and the number of the positioning rods 4 and the number of the tightening rods 8 may also be different, which can be adjusted according to actual engineering requirements.
The positioning rods 4 and the jacking rods 8 are the same in quantity, and are symmetrically arranged one by one relative to the diameter of the socket sleeve 6, namely one positioning rod 4 and one jacking rod 8 are symmetrically arranged, the purpose is that after the positioning rod 4 is positioned, the jacking rods 8 generate reverse supporting force with the positioning rod 4 in the jacking process, the whole stress is ensured to be uniform, and the steel pipe 1 to be sprayed and the socket sleeve 6 are ensured to be better kept concentric in the jacking process.
In this embodiment, socket sleeve 6 is equipped with and pushes up tight pole 8 matched with hole with locating lever 4, and locating lever 4 and top tight pole 8 pass the hole top and push away. It is understood that in other embodiments, holes do not need to be arranged, so that the positioning rod 4, the tightening rod 8 and accessories of the tightening rod are all installed on the outer wall of the socket sleeve 6, the installation space is increased, the gap between the socket sleeve 6 and the steel pipe 1 to be sprayed is increased, and the support stability of the two rods is affected.
Through design hole on socket joint sleeve 6, locating lever 4 and top tight pole 8 pass the hole top and push away, and the auxiliary fitting of locating lever 4 and top tight pole 8 all can be installed at the inner wall of socket joint sleeve 6, has reduced occupation of installation space to reduce socket joint sleeve 6 and treat 1 clearance of spraying steel pipe, be favorable to improving the support stability of locating lever 4, top tight pole 8.
The jacking rod 8 is provided with a driving first support 9 with a through hole, the first support 9 is fixed with the inner wall of the socket sleeve 6, and the jacking rod 8 penetrates through the through hole to be pushed under the driving effect.
In this embodiment, the driving is the oil cylinder 5, but it is understood that in other embodiments, the driving may also be an air cylinder, and is not limited to the oil cylinder 5 disclosed in this embodiment, and may be adjusted according to actual engineering requirements.
The locating lever 4 is the threaded rod, and it disposes the second and supports 3, has on the second supports 3 with threaded rod complex screw hole, and the second supports 3 and socket sleeve 6 inner wall are fixed.
In the adjustment process, can accomplish the regulation of locating lever 4 through manual twisting, the cost is reduced, for making the altitude mixture control process have quantitative reference, be equipped with on the second supports 3 with 4 axial syntropy scales 7 of locating lever, the staff passes through the scale on the scale 7, the top that the staff adjusted locating lever 4 of ration pushes away the height.
The first support 9 and the second support 3 are block-shaped, wherein the surface contacted with the inner wall of the socket sleeve 6 needs to be matched with the first support, and the first support and the second support are fixed by welding to achieve the purpose of firm and stable connection.
The top of locating lever 4 and puller rod 8 all has detachable supporting shoe 2, and the terminal surface of the top of supporting shoe 2 with treat 1 inner wall adaptation of spraying steel pipe, ensure that supporting shoe 2 with treat 1 inner wall of spraying steel pipe be the face contact, can corresponding increase frictional force, be favorable to socket joint sleeve 6 drive to treat that spraying steel pipe 1 is rotatory to supporting shoe 2 can be changed according to the internal face of treating spraying steel pipe 1.
In order to further increase the friction force, the top end face of the supporting block 2 has a diamond pattern, but it is understood that in other embodiments, other types of patterns may be used as long as the effect of increasing the friction is achieved, and the patterns are not limited to the diamond pattern disclosed in this embodiment and can be adjusted according to actual engineering requirements.
Example 2
According to the difference between the inner diameter of the steel pipe 1 to be sprayed and the outer diameter of the socket sleeve 6, the pushing height of the positioning rod 4 is determined, and generally, the height (the distance between the top of the positioning rod 4 and the outer wall of the socket sleeve 6) after the pushing of the positioning rod 4 is equal to the difference between the inner diameter of the steel pipe 1 to be sprayed and the outer diameter of the socket sleeve 6, or slightly larger than the difference, a certain compensation amount is left to compensate a clearance matched with threads.
After the locating lever 4 pushes away and finishes, make the circular arc that its top links to each other and forms can with treat 1 inner wall coincidence of spraying steel pipe, hoist and mount and treat spraying steel pipe 1 and the cooperation of socket joint sleeve 6 socket joint, treat that spraying steel pipe 1 overlaps on socket joint sleeve 6 promptly, support through locating lever 4 top and lean on the contact and treat 1 inner wall of spraying steel pipe, can realize with socket joint sleeve 6 concentric location, push away puller rod 8, with locating lever 4 support jointly treat spraying steel pipe 1 inner wall.
It can be easily understood that the positioning rod 4 is used for positioning, the tightening rod 8 is used for tightening, but in the tightening process, the matching of the positioning rod 4 is needed, therefore, under the pushing action of the tightening rod 8, the tightening rod 8 and the positioning rod 4 jointly support the inner wall of the steel pipe 1 to be sprayed, and then the steel pipe 1 to be sprayed is driven to rotate under the rotary driving of the socket sleeve 6.
When the steel pipe 1 to be sprayed is disassembled, the oil cylinder 5 is decompressed, and the steel pipe 1 to be sprayed can be separated from the clamp.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Claims (10)
1. A spraying rotary fixture for spraying and winding a thermal insulation pipe is characterized by comprising a socket sleeve with the outer diameter smaller than that of a steel pipe to be sprayed, wherein one end of the socket sleeve is connected with a rotating shaft of a rotary trolley, the other end of the socket sleeve is provided with at least two positioning rods and at least two tightening rods which are continuously arranged along the circumferential direction, and the axial directions of the positioning rods and the tightening rods are pushed along the radial direction of the socket sleeve;
the arc chord length formed by any two positioning rods along the circumference is smaller than the diameter of the circumference, the arc formed by connecting the tops of the positioning rods is pushed to coincide with the inner wall of the steel pipe to be sprayed for positioning, and the jacking rods and the positioning rods support the inner wall of the steel pipe to be sprayed together.
2. The spraying and winding heat-insulating pipe spraying rotary fixture as claimed in claim 1, wherein the positioning rods and the jacking rods are the same in number and are symmetrically arranged one by one relative to the diameter of the socket sleeve.
3. The rotary jig for spraying and winding thermal insulation pipes as claimed in claim 1, wherein the socket sleeve is provided with a hole for fitting the positioning rod and the tightening rod, and the positioning rod and the tightening rod are pushed through the hole.
4. The rotary jig for spraying and winding thermal insulation pipes as claimed in claim 3, wherein the tightening rod is provided with a driving and a first support having a through hole, the first support is fixed to the inner wall of the socket sleeve, and the tightening rod passes through the through hole and is pushed by the driving.
5. The rotary clamp for spraying and winding the thermal insulation pipe according to claim 4, wherein the drive is an oil cylinder or an air cylinder.
6. The rotary clamp for spraying and winding the thermal insulation pipe as claimed in claim 3, wherein the positioning rod is a threaded rod, and is provided with a second support, the second support is provided with a threaded hole matched with the threaded rod, and the second support is fixed with the inner wall of the socket sleeve.
7. The rotary clamp for spraying and winding the thermal insulation pipe according to claim 6, wherein the second support is provided with a scale which is in the same direction as the axial direction of the positioning rod.
8. The rotary clamp for spraying and winding the thermal insulation pipe according to any one of claims 1 to 7, wherein the positioning rod and the jacking rod are respectively provided with a detachable supporting block at the top, and the top end surfaces of the supporting blocks are matched with the inner wall of the steel pipe to be sprayed.
9. The spray-wound insulating pipe spray coating rotary jig of claim 8, wherein the top end face of the support block has a diamond pattern.
10. A clamping method of the rotary spraying clamp for the spraying and winding thermal insulation pipe according to any one of claims 1 to 9, which is characterized by comprising the following steps:
according to the difference between the inner diameter of the steel pipe to be sprayed and the outer diameter of the socket sleeve, the pushing height of the positioning rod is determined, so that an arc formed by connecting the tops of the positioning rod can coincide with the inner wall of the steel pipe to be sprayed, the steel pipe to be sprayed is hoisted to be in socket fit with the socket sleeve, the top of the positioning rod is abutted and contacted with the inner wall of the steel pipe to be sprayed, concentric positioning with the socket sleeve is realized, and the pushing jacking rod and the positioning rod support the inner wall of the steel pipe to be sprayed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210174663.XA CN114669416A (en) | 2022-02-24 | 2022-02-24 | Spraying and winding thermal insulation pipe spraying rotary clamp and clamping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210174663.XA CN114669416A (en) | 2022-02-24 | 2022-02-24 | Spraying and winding thermal insulation pipe spraying rotary clamp and clamping method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114669416A true CN114669416A (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210174663.XA Pending CN114669416A (en) | 2022-02-24 | 2022-02-24 | Spraying and winding thermal insulation pipe spraying rotary clamp and clamping method |
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|---|---|
| CN (1) | CN114669416A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0743103A (en) * | 1993-07-26 | 1995-02-10 | Nippon Steel Corp | Inner diameter measurement device for steel pipe |
| CN201300381Y (en) * | 2008-11-26 | 2009-09-02 | 山西焦煤集团有限责任公司 | Bell-and-spigot invert butt device |
| US20170157372A1 (en) * | 2008-08-14 | 2017-06-08 | Surmodics, Inc. | Method and apparatus for coating balloon catheters |
| CN107860378A (en) * | 2017-06-30 | 2018-03-30 | 沪东中华造船(集团)有限公司 | A kind of Portable hidden Pipe installing deviation judges auxiliary mould and its application method |
| CN110280416A (en) * | 2019-06-28 | 2019-09-27 | 盐城东方天成机械有限公司 | Coat painting facilities on the outside of a kind of large pipe |
| CN213529255U (en) * | 2020-09-08 | 2021-06-25 | 内蒙古伟之杰节能装备有限公司 | Spraying rotating device for spraying production of winding type heat preservation pipe |
| CN113042259A (en) * | 2021-03-20 | 2021-06-29 | 姚春霞 | Automatic fluorocarbon spraying system and method for aluminum alloy |
-
2022
- 2022-02-24 CN CN202210174663.XA patent/CN114669416A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0743103A (en) * | 1993-07-26 | 1995-02-10 | Nippon Steel Corp | Inner diameter measurement device for steel pipe |
| US20170157372A1 (en) * | 2008-08-14 | 2017-06-08 | Surmodics, Inc. | Method and apparatus for coating balloon catheters |
| CN201300381Y (en) * | 2008-11-26 | 2009-09-02 | 山西焦煤集团有限责任公司 | Bell-and-spigot invert butt device |
| CN107860378A (en) * | 2017-06-30 | 2018-03-30 | 沪东中华造船(集团)有限公司 | A kind of Portable hidden Pipe installing deviation judges auxiliary mould and its application method |
| CN110280416A (en) * | 2019-06-28 | 2019-09-27 | 盐城东方天成机械有限公司 | Coat painting facilities on the outside of a kind of large pipe |
| CN213529255U (en) * | 2020-09-08 | 2021-06-25 | 内蒙古伟之杰节能装备有限公司 | Spraying rotating device for spraying production of winding type heat preservation pipe |
| CN113042259A (en) * | 2021-03-20 | 2021-06-29 | 姚春霞 | Automatic fluorocarbon spraying system and method for aluminum alloy |
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