CN201103746Y - Hydraulic pipe expanding machine - Google Patents
Hydraulic pipe expanding machine Download PDFInfo
- Publication number
- CN201103746Y CN201103746Y CNU2007201428144U CN200720142814U CN201103746Y CN 201103746 Y CN201103746 Y CN 201103746Y CN U2007201428144 U CNU2007201428144 U CN U2007201428144U CN 200720142814 U CN200720142814 U CN 200720142814U CN 201103746 Y CN201103746 Y CN 201103746Y
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- hydraulic cylinder
- clamping
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- master
- drilling rod
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Abstract
The utility model provides a hydraulic expansion tube machine and comprises an executive device, a control system and a drill pipe; wherein, the executive device comprises at least two main hydraulic cylinders which can realize the alternation working and/or equidirectional work under the control of the control system.
Description
Technical field
The utility model relates to the hydraulic expanding tube machine.
Background technique
A series of operations such as traditional under ground piping is changed needs to carry out excavation, remove waste and old pipeline, put into new pipeline, backfill, compacting, reduction road surface, maintenance, not only labor intensity is big, destroys the road surface, and influences the appearance of the city and traffic.In recent years, a kind of expand tube method occurs, it can be realized not excavating ground and change pipeline.The expand tube method is used electric tube expander cutting or the original pipeline of spalling (for example, coal gas, draining, tap water and power communication pipeline), and traction installs to compare with original pipeline and have same size or larger sized pipeline, thereby realizes that pipeline changes.The enforcement of expand tube method can be divided into three steps usually:
1, hydraulic expanding tube equipment is put into " the import hole " dug in advance, advanced drilling rod then, allow drilling rod enter in original pipeline.
2, when an arrival of drilling rod " exports the hole ", the expand tube head that has connected new pipeline is connected on the drilling rod.
3, return and drag drilling rod, new pipeline is pulled in original old pipeline simultaneously.At this moment the expand tube head is directly with old pipeline breaking, the former caliber of distending simultaneously, and new pipeline is in place synchronously.
In this process, the drilling rod of electric tube expander is pushed pipeline and return and drag the required power of drilling rod to provide by oil hydraulic cylinder.Nowadays, there is a kind of hydraulic expanding tube machine on the market, it adopts the expand tube method to change pipeline, but because it uses the parallel haulage clip lever arrangement of double hydraulic cylinder to drive, so can not realize continuous operation (promptly, discontinuous operation) and available tractive force size immutable, in addition, this design also makes drilling rod easy deflection at work.In addition, the drilling rod of existing hydraulic expanding tube machine has a plurality of upset position (for example three), clamps drilling rod so that when work clamps back-dragging device in upset position, thereby realizes back dragging and advancing.
The model utility content
The purpose of this utility model is to provide a kind of and realizes continuously and/or discontinuous operation and the hydraulic expanding tube machine of the variable tractive force of output load can be provided.
Comprise actuating device, control system and drilling rod according to hydraulic expanding tube machine of the present utility model, actuating device comprises at least two master hydraulic cylinders, described at least two master hydraulic cylinders are under the control of described control system, can realize alternation and/or work in the same way, thus realize the hydraulic expanding tube machine continuously and/or discontinuous operation.Described at least two master hydraulic cylinders are core-theaded type first master hydraulic cylinder and second master hydraulic cylinder along drill rod axis direction serial arrangement.Actuating device further comprises the first vice pedestal and the second vice pedestal, and the first vice pedestal and the second vice pedestal are fixed to the hydraulic rod of first master hydraulic cylinder and second master hydraulic cylinder respectively.Actuating device comprises that further being fixed in first in the first vice pedestal and the second vice pedestal respectively clamps the back-dragging device and the second clamping back-dragging device.
Control system further comprises hydraulic station, hydraulicdirectional control valve, first ratio adjusting valve, second ratio adjusting valve, first pilot valve and second pilot valve, and wherein hydraulic station is connected to hydraulicdirectional control valve by fluid line; Hydraulicdirectional control valve is connected with second ratio adjusting valve to control first ratio adjusting valve and second ratio adjusting valve with first ratio adjusting valve respectively by fluid line; First ratio adjusting valve is connected with first pilot valve, first master hydraulic cylinder and second master hydraulic cylinder respectively by fluid line; Second ratio adjusting valve is connected with second pilot valve, first master hydraulic cylinder and second master hydraulic cylinder respectively by fluid line; First pilot valve is connected with the first clamping hydraulic cylinder group by the fluid passage; Second pilot valve is connected with the second clamping hydraulic cylinder group by the fluid passage.
Compared with prior art, can provide output load variable tractive force, and can realize the alternation of two master hydraulic cylinders, thereby improve the efficient of electric tube expander and the flexibility of use according to hydraulic expanding tube machine of the present utility model.
Another purpose of the present utility model is to provide a kind of swing, difficult hydraulic expanding tube machine that deflection takes place of drilling rod of being difficult at work.
Described at least two master hydraulic cylinders are core-theaded type first master hydraulic cylinder and second master hydraulic cylinder along drill rod axis direction serial arrangement.Drilling rod has homogeneous diameter, and axially passes first master hydraulic cylinder and second master hydraulic cylinder.
Compared with prior art, can avoid machine swing at work, prevent drilling rod deflection in the course of the work, thereby increased stability according to hydraulic expanding tube machine of the present utility model.
Another purpose of the present utility model is to provide a kind of hydraulic expanding tube machine, and it has the clamping back-dragging device that can clamp drilling rod in any appropriate location.
First clamps back-dragging device comprises the first clamping tooth sheet group that is used to provide the first clamping hydraulic cylinder group of clamping force and is used to clamp described drilling rod; Second clamps back-dragging device comprises the second clamping tooth sheet group that is used to provide the second clamping hydraulic cylinder group of clamping force and is used to clamp described drilling rod; Wherein the first clamping tooth sheet group and second clamps tooth sheet group and is the relative tooth sheet group of recess; First clamps first and second of tooth sheet group clamps the tooth sheets and is soldered to the first and second clamping hydraulic cylinders of the first clamping hydraulic cylinder group respectively so that realize the clamping of drilling rod and unclamp; Second clamps first and second of tooth sheet group clamps the tooth sheets and is soldered to the first and second clamping hydraulic cylinders of the second clamping hydraulic cylinder group respectively so that realize the clamping of drilling rod and unclamp.Drilling rod has homogeneous diameter.
Compare with the clamping back-dragging device of existing hydraulic expanding tube machine, clamping back-dragging device according to hydraulic expanding tube machine of the present utility model can clamp drilling rod in suitable arbitrarily position, and the use that clamps the tooth sheet can stop the generation that drilling rod slides, thereby increased flexibility and the stability used.
Actuating device further comprises casing, has a U-shaped breach on the antetheca of casing, has a circular hole on the rear wall, so that drilling rod can run through casing.First master hydraulic cylinder and second master hydraulic cylinder all are fixed in the described casing by three floors.
Description of drawings
Fig. 1 is the stereogram according to an embodiment of the actuating device of hydraulic expanding tube machine of the present utility model.
Fig. 2 is the longitudinal sectional drawing according to the actuating device of hydraulic expanding tube machine of the present utility model.
Fig. 3 is the front elevation of actuating device of the hydraulic expanding tube machine of Fig. 1.
Fig. 4 is the rear view of actuating device of the hydraulic expanding tube machine of Fig. 1.
Fig. 5 is hydraulic expanding tube machine each parts work annexation block diagram under two kinds of mode of operations of Fig. 1.
Embodiment
Fig. 1 has shown an embodiment according to the actuating device of hydraulic expanding tube machine of the present utility model.This hydraulic expanding tube machine can be used for 4 " (about 100mm)-24 " (about 600mm) draining, feedwater, combustion gas and power communication pipeline and changes.In the casing 1 of actuating device, first master hydraulic cylinder 2 and second master hydraulic cylinder 2 ' all be fixed in casing 1 by three floors, wherein be used for fixing the first floor 9a of first master hydraulic cylinder 2 and the second floor 9b first master hydraulic cylinder 2 is fixed on both lateral sides in the casing, the trislab (not shown) that is used for fixing first master hydraulic cylinder 2 is positioned under first master hydraulic cylinder and is fixed in the bottom of casing; Be used for fixing second master hydraulic cylinder 2 ' the first floor 9a ' and the second floor 9b ' and the trislab (not shown) that is positioned at second master hydraulic cylinder 2 ' following be similar to the mode of fixing first master hydraulic cylinder 2 fix second master hydraulic cylinder 2 '.First master hydraulic cylinder 2 and second master hydraulic cylinder 2 ' be core-theaded type oil hydraulic cylinder with hollow cylinder, and along drilling rod 7 axial direction serial arrangement.Each all can have hollow hydraulic rod (not shown) in two oil hydraulic cylinders in addition, and hydraulic rod can have two actions: stretch out and regain.
The first vice pedestal 3 and the second vice pedestal 3 ' be fixed to respectively first master hydraulic cylinder 2 and second master hydraulic cylinder 2 ' hydraulic rod, vice pedestal and hydraulic rod move together in promptly working.Fig. 2 has shown the longitudinal sectional drawing of the hydraulic expanding tube machine actuating device of Fig. 1, and the first vice pedestal 3 and the second vice pedestal 3 ' (not shown in Figure 2) supports also and can slide thereon by two stepped support block 5a, 5b of this actuating device inner bottom part.First clamps back-dragging device comprises and is used to provide the first clamping hydraulic cylinder group of clamping force (to comprise 41a, 41b) and be used to clamp first of described drilling rod and clamp tooth sheet group and (comprise 42a, 42b), described second clamps back-dragging device comprises and is used to provide the second clamping hydraulic cylinder group of clamping force (to comprise 41a ', 41b ') and be used to clamp second of described drilling rod and clamp tooth sheet group and (comprise 42a ', 42b '), the first clamping tooth sheet group and second clamps tooth sheet group and is the relative tooth sheet group of recess, first clamps first of tooth sheet group clamps tooth sheet 42a and second and clamps tooth sheet 42b and be soldered to the first clamping hydraulic cylinder 41a of the first clamping hydraulic cylinder group and the second clamping hydraulic cylinder 41b respectively so that realize the clamping of described drilling rod and unclamp, and described second clamps first of tooth sheet group clamps tooth sheet 42a ' and second and clamp tooth sheet 42b ' and be soldered to the first clamping hydraulic cylinder 41a ' of the described second clamping hydraulic cylinder group and the second clamping hydraulic cylinder 42b ' respectively so that realize the clamping of described drilling rod and unclamp.
In addition, this hydraulic expanding tube machine also comprises the control system (not shown).First master hydraulic cylinder 2 shown in Fig. 1 and second master hydraulic cylinder 2 ' under the control of control system can be realized alternation and/or work in the same way.As long as satisfy the requirement of tractive force, just can make two master hydraulic cylinders work in alternate mode, thus reach the purpose of hydraulic expanding tube machine continuous operation; If the diameter of pipeline to be replaced is very big or it is bigger to change natural scale, promptly need bigger tractive force, then can make two hydraulic cylinder works in pattern in the same way, i.e. oil hydraulic cylinder discontinuous operation, thus realize the effect of increasing traction.According to an embodiment of the present utility model, each master hydraulic cylinder all can provide 75 tons tractive force, when two cylinder alternations, it is hydraulic expanding tube machine running hours, 75 tons tractive force can be provided, and when two cylinders are worked in the same way, promptly during hydraulic expanding tube machine discontinuous operation, can provide 150 tons tractive force.
According to an embodiment of the present utility model, control system comprises hydraulic station 12, hydraulicdirectional control valve 13, first ratio adjusting valve 14, second ratio adjusting valve 15, first pilot valve 16 and second pilot valve 17.Fig. 5 provides each parts work annexation block diagram under described two kinds of mode of operations.As shown in Figure 5, hydraulic station 12 by fluid line with hydraulic-pressure pump to hydraulicdirectional control valve 13, hydraulicdirectional control valve 13 is connected with second ratio adjusting valve 15 with first ratio adjusting valve 14 by fluid line, thereby may command first ratio adjusting valve 14 and second ratio adjusting valve 15 switch to be implemented between two kinds of mode of operations.First ratio adjusting valve 14 by fluid line respectively with first pilot valve 16, first master hydraulic cylinder 2 and second master hydraulic cylinder 2 ' be connected, second ratio adjusting valve 15 by fluid line respectively with second pilot valve 17, first master hydraulic cylinder 2 and second master hydraulic cylinder 2 ' be connected.The two master hydraulic cylinder alternations of first ratio adjusting valve, 14 may command, and may command first pilot valve 16 cooperates two master hydraulic cylinders with the action of controlling the first clamping hydraulic cylinder group (41a, 41b) and the second clamping hydraulic cylinder group (41a ', 41b ').Second ratio adjusting valve, 15 may command, two master hydraulic cylinders are worked in the same way, and may command second pilot valve 17 cooperates two master hydraulic cylinders with the action of controlling the first clamping hydraulic cylinder group (41a, 41b) and the second clamping hydraulic cylinder group (41a ', 41b ').For example, drag next time in the operation cycle of drilling rod at alternate mode, suppose the hydraulic rod of first master hydraulic cylinder 2 originally be in stretch out state fully and second master hydraulic cylinder 2 ' hydraulic rod be in complete retracted state, 16 controls, the first clamping hydraulic cylinder group action of first pilot valve is so that the first clamping tooth sheet group (42a, 42b) clamp drilling rod, thereby the hydraulic rod of first ratio adjusting valve, 14 controls, first master hydraulic cylinder 2 is regained and is driven drilling rod to swivel motion then, first pilot valve, 16 controls, the first clamping hydraulic cylinder group (41a after the hydraulic rod of first master hydraulic cylinder 2 reaches complete retracted state, 41b) action is so that the first clamping tooth sheet group (42a, 42b) unclamp drilling rod and control second clamping hydraulic cylinder action so that second clamp tooth sheet group (42a ', 42b ') clamps drilling rod, thereby then first ratio adjusting valve 14 control, second master hydraulic cylinder 2 ' hydraulic rod regain and drive drilling rod and stretch out to swivel motion and the hydraulic rod of controlling first master hydraulic cylinder 2, then second master hydraulic cylinder 2 ' hydraulic rod reach complete retracted state and the hydraulic rod of first master hydraulic cylinder 2 reaches the state that stretches out fully, repeat same operation in next operation cycle afterwards, thereby the hydraulic rod of having realized two master hydraulic cylinders replaces back and drags drilling rod.The process that advances drilling rod under alternate mode drags drilling rod similar with returning.Again for example, drag next time in the operation cycle of drilling rod in pattern in the same way, suppose originally first master hydraulic cylinder 2 and second master hydraulic cylinder 2 ' hydraulic rod all be in and stretch out state fully, second pilot valve, 17 controls, the first clamping hydraulic cylinder group (41a, 41b) and the second clamping hydraulic cylinder group (41a ', 41b ') action is so that the first clamping tooth sheet group (42a, 42b) and second clamp tooth sheet group (42a ', 42b ') all clamps drilling rod, thereby then second ratio adjusting valve 15 control first master hydraulic cylinders 2 and second master hydraulic cylinder 2 ' hydraulic rod regain and drive drilling rod to swivel motion, first master hydraulic cylinder 2 and second master hydraulic cylinder 2 ' hydraulic rod reach complete retracted state after second pilot valve, 17 controls, the first clamping hydraulic cylinder group (41a, 41b) and the second clamping hydraulic cylinder group (41a ', 41b ') action is so that the first clamping tooth sheet group (42a, 42b) and second clamp tooth sheet group (42a ', 42b ') all unclamps drilling rod, then second ratio adjusting valve 15 control first master hydraulic cylinders 2 and second master hydraulic cylinder 2 ' hydraulic rod stretch out up to reaching the state that stretches out fully, repeat identical operations in next afterwards operation cycle, thereby realize that two oil hydraulic cylinders work in the same way.Under pattern in the same way, advance drilling rod to drag drilling rod similar with returning.It will be appreciated by those skilled in the art that according to hydraulic expanding tube machine of the present utility model and can use two above master hydraulic cylinders, and described two above master hydraulic cylinders can be under the control of control system, realize alternation and/or work in the same way.
The core-theaded type oil hydraulic cylinder 2,2 that hydraulic expanding tube machine employing dual serial shown in Figure 1 is arranged ', parallel haulage clip lever arrangement with the double hydraulic cylinder that is adopted in the like product is compared, can avoid machine swing at work, and can prevent drilling rod deflection in the course of the work, thereby increased stability.
Hydraulic expanding tube machine shown in Figure 1 improves clamping back-dragging device and drilling rod, main improved be the shape of drilling rod and the mode that clamps drilling rod: the drilling rod after the improvement has homogeneous diameter, and the returning of drilling rod dragged and advanced is by clamping the tight drilling rod realization of dental film holder.Like this, clamp back-dragging device and can clamp drilling rod in suitable arbitrarily position.The use that clamps the tooth sheet in addition can be stopped the generation that drilling rod slides.It will be appreciated by those skilled in the art that the utility model also can use existing drilling rod with upset position if not needing to consider clamps drilling rod at an arbitrary position.
Shown in Fig. 3 and 4, have a U-shaped breach 10 according to the casing antetheca of hydraulic expanding tube machine of the present utility model, rear wall has a circular hole 11, thereby can make drilling rod run through casing.
As shown in Figure 1, four suspension hook 8a, 8b, 8c and 8d are fixed on the outer two side of casing with convenient lifting.
Claims (9)
1. continuous hydraulic expanding tube machine, it comprises actuating device, automatic control system and drilling rod, described hydraulic expanding tube machine is characterised in that described actuating device comprises at least two master hydraulic cylinders of vertically arranging, and described drilling rod axially passes described at least two master hydraulic cylinders.
2. continuous hydraulic expanding tube machine according to claim 1 is characterized in that described at least two master hydraulic cylinders of vertically arranging are core-theaded type first master hydraulic cylinder and second master hydraulic cylinder along drill rod axis direction serial arrangement.
3. continuous hydraulic expanding tube machine according to claim 2, it is characterized in that described actuating device further comprises the first vice pedestal and the second vice pedestal, described first vice pedestal and the described second vice pedestal are fixed to the hydraulic rod of described first master hydraulic cylinder and described second master hydraulic cylinder respectively.
4. continuous hydraulic expanding tube machine according to claim 3 is characterized in that described actuating device comprises that further being fixed in first in described first vice pedestal and the described second vice pedestal respectively clamps the back-dragging device and the second clamping back-dragging device.
5. continuous hydraulic expanding tube machine according to claim 4 is characterized in that the described first clamping back-dragging device comprises the first clamping tooth sheet group that is used to provide the first clamping hydraulic cylinder group of clamping force and is used to clamp described drilling rod;
Described second clamps back-dragging device comprises the second clamping tooth sheet group that is used to provide the second clamping hydraulic cylinder group of clamping force and is used to clamp described drilling rod; Wherein
The described first clamping tooth sheet group and described second clamps tooth sheet group and is the relative tooth sheet group of recess;
Described first clamps first of tooth sheet group clamps tooth sheet and second and clamps the tooth sheet and be soldered to the first clamping hydraulic cylinder of the described first clamping hydraulic cylinder group and the second clamping hydraulic cylinder respectively so that realize the clamping of described drilling rod and unclamp;
Described second clamps first of tooth sheet group clamps tooth sheet and second and clamps the tooth sheet and be soldered to the first clamping hydraulic cylinder of the described second clamping hydraulic cylinder group and the second clamping hydraulic cylinder respectively so that realize the clamping of described drilling rod and unclamp.
6. continuous hydraulic expanding tube machine according to claim 5 is characterized in that described automatic control system further comprises hydraulic station, hydraulicdirectional control valve, first ratio adjusting valve, second ratio adjusting valve, first pilot valve and second pilot valve, wherein
Described hydraulic station is connected to described hydraulicdirectional control valve by fluid line;
Described hydraulicdirectional control valve is connected with described second ratio adjusting valve to control described first ratio adjusting valve and described second ratio adjusting valve with described first ratio adjusting valve respectively by fluid line;
Described first ratio adjusting valve is connected with described first pilot valve, described first master hydraulic cylinder and described second master hydraulic cylinder respectively by fluid line;
Described second ratio adjusting valve is connected with described second pilot valve, described first master hydraulic cylinder and described second master hydraulic cylinder respectively by fluid line;
Described first pilot valve is connected with the described first clamping hydraulic cylinder group by the fluid passage;
Described second pilot valve is connected with the described second clamping hydraulic cylinder group by the fluid passage.
7. continuous hydraulic expanding tube machine according to claim 2 is characterized in that described drilling rod has homogeneous diameter.
8. continuous hydraulic expanding tube machine according to claim 1 is characterized in that described actuating device further comprises casing, has a U-shaped breach on the antetheca of described casing, has a circular hole on its rear wall.
9. continuous hydraulic expanding tube machine according to claim 8 is characterized in that described first master hydraulic cylinder and described second master hydraulic cylinder all are fixed in the described casing by three floors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201428144U CN201103746Y (en) | 2007-04-18 | 2007-04-18 | Hydraulic pipe expanding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201428144U CN201103746Y (en) | 2007-04-18 | 2007-04-18 | Hydraulic pipe expanding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201103746Y true CN201103746Y (en) | 2008-08-20 |
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ID=39950772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201428144U Expired - Fee Related CN201103746Y (en) | 2007-04-18 | 2007-04-18 | Hydraulic pipe expanding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201103746Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102258969A (en) * | 2011-05-20 | 2011-11-30 | 贵州航天天马机电科技有限公司 | Ejection mechanical equipment |
| CN102366797A (en) * | 2011-11-14 | 2012-03-07 | 铜陵市弘润机电有限责任公司 | Tube expander |
| CN102435073A (en) * | 2011-12-09 | 2012-05-02 | 贵州航天天马机电科技有限公司 | Oil pressure ejector |
| CN106216543A (en) * | 2016-08-31 | 2016-12-14 | 奥美森智能装备股份有限公司 | A kind of fixing device for heat transmission equipment |
| CN107863486A (en) * | 2017-12-21 | 2018-03-30 | 深圳市舜源自动化科技有限公司 | A kind of eccentric roll-type high speed lug forming machine |
| CN108439003A (en) * | 2018-03-27 | 2018-08-24 | 广东曼兹智能装备有限公司 | Die-cutting machine |
| CN110773623A (en) * | 2019-12-17 | 2020-02-11 | 哈工大机器人（岳阳）军民融合研究院 | Electromagnetic punching forming device |
-
2007
- 2007-04-18 CN CNU2007201428144U patent/CN201103746Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102258969A (en) * | 2011-05-20 | 2011-11-30 | 贵州航天天马机电科技有限公司 | Ejection mechanical equipment |
| CN102366797A (en) * | 2011-11-14 | 2012-03-07 | 铜陵市弘润机电有限责任公司 | Tube expander |
| CN102435073A (en) * | 2011-12-09 | 2012-05-02 | 贵州航天天马机电科技有限公司 | Oil pressure ejector |
| CN106216543A (en) * | 2016-08-31 | 2016-12-14 | 奥美森智能装备股份有限公司 | A kind of fixing device for heat transmission equipment |
| CN107863486A (en) * | 2017-12-21 | 2018-03-30 | 深圳市舜源自动化科技有限公司 | A kind of eccentric roll-type high speed lug forming machine |
| CN108439003A (en) * | 2018-03-27 | 2018-08-24 | 广东曼兹智能装备有限公司 | Die-cutting machine |
| CN110773623A (en) * | 2019-12-17 | 2020-02-11 | 哈工大机器人（岳阳）军民融合研究院 | Electromagnetic punching forming device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080820 Termination date: 20130418 |