CN107791197B - Heat exchange tube penetrating guide head - Google Patents
Heat exchange tube penetrating guide head Download PDFInfo
- Publication number
- CN107791197B CN107791197B CN201711190527.5A CN201711190527A CN107791197B CN 107791197 B CN107791197 B CN 107791197B CN 201711190527 A CN201711190527 A CN 201711190527A CN 107791197 B CN107791197 B CN 107791197B
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- Prior art keywords
- sleeve
- conical
- heat exchange
- split type
- head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses a heat exchange tube penetrating guide head, which comprises: the device comprises a first conical head, a connecting rod, a conical sleeve, a spring and a split type cylinder sleeve, wherein the connecting rod is arranged at the rear end of the first conical head; the first conical head is pulled forwards, the locking mechanism pushes the split type cylindrical sleeve to move towards the first conical head to enable the expansion sheet to gradually shrink, so that the split type cylindrical sleeve in the pipe penetrating guide head can extend into the heat exchange pipe, the first conical head is loosened, the split type cylindrical sleeve can move towards the direction away from the first conical head under the action of the thrust of the spring, and the expansion sheet is extruded by the conical sleeve to be outwards expanded until the expansion sheet is tightly expanded on the inner wall of the heat exchange pipe. The expansion mode is very reliable, and even if the heat exchange tube is vibrated or knocked in the tube penetrating process, the tube penetrating guide head cannot be separated from the heat exchange tube, so that the tube penetrating efficiency is greatly improved.
Description
Technical Field
The invention relates to a heat exchange tube penetrating guide device, in particular to a heat exchange tube penetrating guide head.
Background
When the heat exchanger is manufactured, the heat exchange pipe needs to be arranged on the pipe plate and the baffle plate in a penetrating way, because the assembly gaps between the pipe holes on the pipe plate and the baffle plate and the heat exchange pipe are smaller, and the assembly tolerance exists after the pipe plate and the baffle plate are assembled, the heat exchange pipe is difficult to penetrate through the pipe holes when the heat exchange pipe is actually arranged in a penetrating way, a pipe penetrating guide head is usually required to be arranged at the end part of the heat exchange pipe, and the structure of the traditional pipe penetrating guide head comprises: the conical head, be provided with the connecting rod at the rear end of conical head. When the heat exchange tube is penetrated, a penetrating tube guide head with the corresponding size is selected according to the heat exchange tubes with different tube diameter sizes, and then the heat exchange tubes are directly sleeved on the connecting rod. Because the connecting rod and the heat exchange tube are inevitably provided with gaps, the heat exchange tube can be vibrated or knocked in the penetrating process, the heat exchange tube and the penetrating tube guide head are easy to fall off, and the penetrating tube guide head is difficult to take out after falling into the device, so that the penetrating tube efficiency is greatly reduced.
Disclosure of Invention
The purpose of the invention is that: the heat exchange tube penetrating guide head can effectively prevent the heat exchange tube and the penetrating guide head from falling off in the tube penetrating process, so that the tube penetrating efficiency is effectively improved.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a heat exchange tube feed-through guide head comprising: the device comprises a first conical head, a connecting rod, a conical sleeve, a spring and a split type cylindrical sleeve, wherein the connecting rod is arranged at the rear end of the first conical head, the conical sleeve, the spring and the split type cylindrical sleeve are sleeved on the connecting rod in sequence, the conical sleeve and the spring are both positioned in the split type cylindrical sleeve, the conical direction of the conical sleeve is consistent with that of the first conical head, and the front end of the spring is abutted against the conical sleeve; the front part of the split type cylinder sleeve is uniformly provided with a plurality of expansion sheets, the front part of the inner wall of each expansion sheet is provided with a taper, the taper direction of the inner wall of each expansion sheet is consistent with that of the taper sleeve, the expansion sheet on the split type cylinder sleeve is sleeved on the taper sleeve, the rear end of the spring is abutted against the inner wall of the rear part of the split type cylinder sleeve, a locking mechanism is fixedly arranged on a connecting rod positioned at the rear side of the split type cylinder sleeve, the split type cylinder sleeve is abutted against the locking mechanism under the action of the elasticity of the spring, and the expansion sheet on the split type cylinder sleeve is outwards propped by the extrusion of the taper sleeve; when the pipe penetrating guide head with the structure is required to be fixed at the end part of the heat exchange pipe, the first conical head is pulled forwards, the locking mechanism pushes the split type cylindrical sleeve to move towards the first conical head against the elastic force of the spring, so that the outward extrusion force of the conical sleeve, which is applied to the expansion piece on the split type cylindrical sleeve, is gradually reduced until the expansion piece is not extruded by the conical sleeve any more to shrink, the split type cylindrical sleeve in the pipe penetrating guide head can be stretched into the heat exchange pipe, then the first conical head is loosened, the split type cylindrical sleeve moves towards the direction away from the first conical head under the elastic force of the spring, the expansion piece is gradually extruded by the conical sleeve to be outwards spread until the expansion piece is expanded with the inner wall of the heat exchange pipe, and then pipe penetrating work can be performed.
Further, the front end of the conical sleeve is provided with a second conical head which is convenient to hold, the taper direction of the second conical head is consistent with that of the first conical head, the small-caliber end of the second conical head is abutted against the first conical head, and the small-caliber end of the second conical head is not protruded out of the large-caliber end of the first conical head.
Further, the heat exchange tube penetrating guide head is characterized in that an expansion piece groove is formed between every two adjacent expansion pieces.
Further, according to the heat exchange tube penetrating guide head, six expansion sheets are uniformly formed at the front part of the cylindrical sleeve body.
Further, in the heat exchange tube penetrating guide head, three grooves are formed in the outer wall of each expansion sheet, the three grooves on every two adjacent expansion sheets are aligned one by one, so that three circular grooves are formed, and an elastic O-shaped ring is arranged in each circular groove.
Further, the heat exchange tube penetrating guide head comprises a locking mechanism, wherein the specific structure of the locking mechanism is as follows: the rear section of the connecting rod is provided with a threaded section, two nuts are arranged on the threaded section, and the two nuts are screwed on the threaded section and are mutually clung together.
Further, according to the heat exchange tube penetrating guide head, the auxiliary holes are formed in the first conical head, and the connecting rods are uniformly provided with the first lightening holes at intervals.
Further, in the heat exchange tube penetrating guide head, a plurality of second lightening holes are formed in the conical sleeve, and a plurality of third lightening holes are formed in the second conical head.
The invention has the advantages that: the utility model has the advantages of simple structure, when using, pull forward first conical head earlier, make locking mechanism promote split type cylinder cover overcome spring force and move towards first conical head direction, the expansion sheet on the split type cylinder cover will shrink, just so can stretch into the heat exchange tube with the split type cylinder cover in the poling direction head, stretch into the heat exchange tube with split type cylinder cover in the back, loosen first conical head, split type cylinder cover is moved towards the direction of keeping away from first conical head under the spring force effect, the expansion sheet on the split type cylinder cover struts, until the expansion sheet is tightly expanded on the inner wall of heat exchange tube, even if like this the heat exchange tube receives vibrations or beats at poling in-process, poling direction head also can not break away from with the heat exchange tube, thereby poling efficiency has been improved.
Drawings
Fig. 1 is a schematic structural view of a heat exchange tube penetrating guide head according to the present invention.
Fig. 2 is a schematic view of the first conical head of fig. 1.
Fig. 3 is a schematic view of the configuration of the conical sleeve of fig. 1.
Fig. 4 is a schematic structural view of the split cylinder jacket in fig. 1.
Detailed Description
The technical scheme of the invention is further described below with reference to the attached drawings and the preferred embodiments.
As shown in fig. 1, 2, 3 and 4, the technical scheme adopted by the invention is as follows: a heat exchange tube feed-through guide head comprising: the first conical head 1 is provided with an auxiliary hole 11 on the first conical head 1, the rear end of the first conical head 1 is provided with a connecting rod 2, the rear section of the connecting rod 2 is provided with a threaded section 21, and a plurality of first lightening holes 22 are uniformly arranged on the connecting rod 2 at intervals to lighten the weight of the connecting rod 2. The connecting rod 2 is sequentially sleeved with a conical sleeve 3, a spring 4 and a split type cylindrical sleeve 5, the conical sleeve 3 and the spring 4 are both positioned in the split type cylindrical sleeve 5, a second conical head 31 convenient to hold is arranged at the front end of the conical sleeve 3, the conical direction of the conical sleeve 3 and the conical direction of the second conical head 31 are consistent with the conical direction of the first conical head 1, two second lightening holes 32 are formed in the conical sleeve 3, and four third lightening holes 33 are formed in the second conical head 31; the small-caliber end of the second conical head 31 is propped against the first conical head 1, the small-caliber end of the second conical head 31 is not protruded out of the large-caliber end of the first conical head 1, the front end of the spring 4 is propped against the conical sleeve 3, six expansion sheets 51 are uniformly formed at the front part of the split type cylindrical sleeve 5, an expansion sheet groove 52 is formed between every two adjacent expansion sheets 51, the front part of the inner wall of each expansion sheet 51 is provided with a taper, the taper direction of the inner wall of each expansion sheet 51 is consistent with the taper direction of the conical sleeve 3, three grooves 53 are formed in each expansion sheet 51, the three grooves 53 in each two adjacent expansion sheets 51 are aligned one by one respectively, so that three circular grooves are formed, friction force between the expansion sheets 51 and the inner wall of a heat exchange tube can be enhanced by respectively arranging an elastic O-shaped ring 6,O-shaped ring 6 in each circular groove, the situation that the tube penetrating guide head falls off is further prevented, and the O-shaped ring 6 can also obtain better contraction effect by utilizing own tightening force. The expansion sheet 51 on the split type cylinder sleeve 5 is sleeved on the conical sleeve 3, the rear end of the spring 4 is propped against the rear inner wall of the split type cylinder sleeve 5, a locking mechanism is matched on the threaded section 21 of the connecting rod 2, the split type cylinder sleeve 5 is propped against the locking mechanism under the action of the elasticity of the spring 4, the expansion sheet 51 on the split type cylinder sleeve 5 is extruded by the conical sleeve 3 to be outwards propped, and the specific structure of the locking mechanism is as follows: two nuts 7 are provided on the threaded section 21, and the two nuts 7 are screwed onto the threaded section 21 and are in close contact with each other. When the pipe penetrating guide head with the structure is required to be fixed at the end part of the heat exchange pipe, the first conical head 1 is pulled forwards, the nut 7 locked on the threaded section 21 pushes the split type cylindrical sleeve 5 to move towards the direction of the first conical head 1 against the elastic force of the spring 4, so that the outward extrusion force of the conical sleeve 3, which is received by the expansion piece 51 on the split type cylindrical sleeve 5, is gradually reduced until the expansion piece 51 is not extruded outwards by the conical sleeve 3 any more and is contracted under the action of the O-shaped ring 6, the split type cylindrical sleeve 5 in the pipe penetrating guide head can be placed in the heat exchange pipe, after the pipe penetrating guide head is placed in the heat exchange pipe, the first conical head 1 is loosened, the split type cylindrical sleeve 5 moves towards the direction away from the first conical head 1 under the elastic force of the spring 4, the expansion piece 51 is gradually extruded outwards by the conical sleeve 3 until the expansion piece 51 is expanded tightly with the inner wall of the heat exchange pipe, and then pipe penetrating work can be carried out.
The application method of the invention is as follows: an iron rod is inserted into the auxiliary hole 11, the second conical head 31 is held by one hand, the first conical head 1 is pulled forward by holding the iron rod by the other hand, the nut 7 locked on the threaded section 21 pushes the split type cylindrical sleeve 5 to move towards the direction of the first conical head 1 against the elastic force of the spring 4, in this way, the expansion piece 51 is gradually reduced by the outward extrusion force of the conical sleeve 3 until the expansion piece is no longer extruded by the conical sleeve 3, the expansion piece 51 is quickly contracted under the tightening action of the O-shaped ring 6, and then the split type cylindrical sleeve 5 in the threading guide head is put into a heat exchange tube. After the split type cylinder sleeve 5 is placed into the heat exchange tube, the first conical head 1 is loosened, the split type cylinder sleeve 5 moves away from the first conical head 1 under the action of the elastic force of the spring 4, the expansion sheet 51 is gradually extruded by the conical sleeve 3 to be outwards expanded until the expansion sheet 51 is expanded with the inner wall of the heat exchange tube, and then the heat exchange tube with the tube penetrating guide head can be made to perform tube penetrating work on the tube plate or the baffle plate, and the condition that the guide head falls off cannot occur. When the pipe penetrating guide head needs to be disassembled, an iron rod is inserted into the auxiliary hole 11, then the second conical head 31 is held by one hand, the first conical head 1 is pulled forward by holding the iron rod by the other hand, the split type cylinder sleeve 5 moves towards the direction of the first conical head 1 against the elastic force of the spring 4 under the thrust action of the nut 7, so that the outward extrusion force of the conical sleeve 3 to the expansion piece 51 is gradually reduced until the expansion piece is disappeared, the expansion piece 51 contracts under the tightening action of the O-shaped ring until a gap exists between the expansion piece 51 and the heat exchange pipe, and the pipe penetrating guide head can be taken out from the heat exchange pipe at the moment.
The invention has the advantages that: the utility model has the advantages of simple structure, when using, pull forward first conical head earlier, make locking mechanism promote split type cylinder cover overcome spring force and move towards first conical head direction, the expansion sheet on the split type cylinder cover will shrink, just so can stretch into the heat exchange tube with the split type cylinder cover in the poling direction head, stretch into the heat exchange tube with split type cylinder cover in the back, loosen first conical head, split type cylinder cover is moved towards the direction of keeping away from first conical head under the spring force effect, the expansion sheet on the split type cylinder cover struts, until the expansion sheet is tightly expanded on the inner wall of heat exchange tube, even if like this the heat exchange tube receives vibrations or beats at poling in-process, poling direction head also can not break away from with the heat exchange tube, thereby poling efficiency has been improved.
Claims (8)
1. A heat exchange tube feed-through guide head comprising: the first conical head, be provided with the connecting rod at the rear end of first conical head, its characterized in that: the connecting rod is sequentially sleeved with a conical sleeve, a spring and a split type cylindrical sleeve, the conical sleeve and the spring are both positioned in the split type cylindrical sleeve, the taper direction of the conical sleeve is consistent with that of the first conical head, and the front end of the spring is abutted against the conical sleeve; the front part of the split type cylinder sleeve is uniformly provided with a plurality of expansion sheets, the front part of the inner wall of each expansion sheet is provided with a taper, the taper direction of the inner wall of each expansion sheet is consistent with that of the taper sleeve, the expansion sheet on the split type cylinder sleeve is sleeved on the taper sleeve, the rear end of the spring is abutted against the inner wall of the rear part of the split type cylinder sleeve, a locking mechanism is fixedly arranged on a connecting rod positioned at the rear side of the split type cylinder sleeve, the split type cylinder sleeve is abutted against the locking mechanism under the action of the elasticity of the spring, and the expansion sheet on the split type cylinder sleeve is outwards propped by the extrusion of the taper sleeve; when the pipe penetrating guide head with the structure is required to be fixed at the end part of the heat exchange pipe, the first conical head is pulled forwards, the locking mechanism pushes the split type cylindrical sleeve to move towards the first conical head against the elastic force of the spring, so that the outward extrusion force of the conical sleeve, which is applied to the expansion piece on the split type cylindrical sleeve, is gradually reduced until the expansion piece is not extruded by the conical sleeve any more to shrink, the split type cylindrical sleeve in the pipe penetrating guide head can be stretched into the heat exchange pipe, then the first conical head is loosened, the split type cylindrical sleeve moves towards the direction away from the first conical head under the elastic force of the spring, the expansion piece is gradually extruded by the conical sleeve to be outwards spread until the expansion piece is expanded with the inner wall of the heat exchange pipe, and then pipe penetrating work can be performed.
2. A heat exchange tube threading guide head as claimed in claim 1 wherein: the front end of the conical sleeve is provided with a second conical head which is convenient to hold, the taper direction of the second conical head is consistent with that of the first conical head, the small-caliber end of the second conical head is abutted against the first conical head, and the small-caliber end of the second conical head does not protrude out of the large-caliber end of the first conical head.
3. A heat exchange tube threading guide head according to claim 1 or 2 characterized in that: a expansion sheet groove is arranged between every two adjacent expansion sheets.
4. A heat exchange tube threading guide head according to claim 3 wherein: six expansion sheets are uniformly formed at the front part of the cylindrical sleeve body.
5. A heat exchange tube threading guide head as claimed in claim 4 wherein: the outer wall of each expansion sheet is provided with three grooves, the three grooves on every two adjacent expansion sheets are aligned one by one respectively, so that three circular grooves are formed, and each circular groove is provided with an elastic O-shaped ring.
6. A heat exchange tube threading guide head according to claim 1 or 2 characterized in that: the specific structure of the locking mechanism is as follows: the rear section of the connecting rod is provided with a threaded section, two nuts are arranged on the threaded section, and the two nuts are screwed on the threaded section and are mutually clung together.
7. A heat exchange tube threading guide head according to claim 1 or 2 characterized in that: an auxiliary hole is arranged on the first conical head, and a plurality of first lightening holes are uniformly arranged on the connecting rod at intervals.
8. A heat exchange tube threading guide head according to claim 2 wherein: the taper sleeve is provided with a plurality of second lightening holes, and the second taper head is provided with a plurality of third lightening holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711190527.5A CN107791197B (en) | 2017-11-24 | 2017-11-24 | Heat exchange tube penetrating guide head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711190527.5A CN107791197B (en) | 2017-11-24 | 2017-11-24 | Heat exchange tube penetrating guide head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107791197A CN107791197A (en) | 2018-03-13 |
| CN107791197B true CN107791197B (en) | 2023-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711190527.5A Active CN107791197B (en) | 2017-11-24 | 2017-11-24 | Heat exchange tube penetrating guide head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107791197B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112276861A (en) * | 2020-09-30 | 2021-01-29 | 扬中申扬换热设备有限公司 | Pipe penetrating tool |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947724A (en) * | 2010-08-27 | 2011-01-19 | 张家港化工机械股份有限公司 | Guider for penetrating tubes of shell and tube heat exchanger |
| CN203045624U (en) * | 2012-12-17 | 2013-07-10 | 陕西中明能源投资有限公司 | Pipe-penetrating guide head |
| CN103395033A (en) * | 2013-07-29 | 2013-11-20 | 张家港化工机械股份有限公司 | Guide head for passing heat exchange tubes |
| CN203390235U (en) * | 2013-07-02 | 2014-01-15 | 上海东方泵业(集团)有限公司 | Taper expansion mandrel |
| CN104128906A (en) * | 2014-08-01 | 2014-11-05 | 张家港化工机械股份有限公司 | Guide head penetrating through heat exchange tube |
| CN204248335U (en) * | 2014-10-30 | 2015-04-08 | 中国石油天然气股份有限公司 | Leading head for through pipe of heat-exchanger |
| WO2016145930A1 (en) * | 2015-03-18 | 2016-09-22 | 天津精开科技开发有限公司 | Single-hand operated adaptor and operating method thereof |
| CN207874090U (en) * | 2017-11-24 | 2018-09-18 | 张化机（苏州）重装有限公司 | A kind of heat exchanger tube poling guide head |
-
2017
- 2017-11-24 CN CN201711190527.5A patent/CN107791197B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947724A (en) * | 2010-08-27 | 2011-01-19 | 张家港化工机械股份有限公司 | Guider for penetrating tubes of shell and tube heat exchanger |
| CN203045624U (en) * | 2012-12-17 | 2013-07-10 | 陕西中明能源投资有限公司 | Pipe-penetrating guide head |
| CN203390235U (en) * | 2013-07-02 | 2014-01-15 | 上海东方泵业(集团)有限公司 | Taper expansion mandrel |
| CN103395033A (en) * | 2013-07-29 | 2013-11-20 | 张家港化工机械股份有限公司 | Guide head for passing heat exchange tubes |
| CN104128906A (en) * | 2014-08-01 | 2014-11-05 | 张家港化工机械股份有限公司 | Guide head penetrating through heat exchange tube |
| CN204248335U (en) * | 2014-10-30 | 2015-04-08 | 中国石油天然气股份有限公司 | Leading head for through pipe of heat-exchanger |
| WO2016145930A1 (en) * | 2015-03-18 | 2016-09-22 | 天津精开科技开发有限公司 | Single-hand operated adaptor and operating method thereof |
| CN207874090U (en) * | 2017-11-24 | 2018-09-18 | 张化机（苏州）重装有限公司 | A kind of heat exchanger tube poling guide head |
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| Publication number | Publication date |
|---|---|
| CN107791197A (en) | 2018-03-13 |
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