CN201843619U - Improved body of central rotary joint of shield - Google Patents
Improved body of central rotary joint of shield Download PDFInfo
- Publication number
- CN201843619U CN201843619U CN2010202927457U CN201020292745U CN201843619U CN 201843619 U CN201843619 U CN 201843619U CN 2010202927457 U CN2010202927457 U CN 2010202927457U CN 201020292745 U CN201020292745 U CN 201020292745U CN 201843619 U CN201843619 U CN 201843619U
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- brush
- wireless
- shield
- conducting ring
- ring
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Abstract
The utility model relates to an improved body of a central rotary joint of a shield, which is characterized in that the wall of an inner cavity of a rotating body is provided with a through hole; a power connection device is arranged at an end joint of the rotating body; and the power connection device comprises two electric brush assemblies, an outer conducting ring, an inner conducting ring and an insulator. A power line of a cutter head of the shield and an extension antenna of a wireless transmission AP (access point) extend to the central rotary joint through the through hole. The power line is connected with the inner and outer conducting rings. Electric brushes of the two electric brush assemblies are connected with a power line at the tail of the shield. An extension antenna of a wireless router in a wireless receiving module is close to the extension antenna of the wireless transmission AP at the joint of the central rotating body. The two extension antennas are used for wireless receiving of information. Through improving the central rotating body on a shield machine, the geological information which is detected by a ground penetrating radar positioned in the cutter head at the head of the shield machine is transmitted into a control room at the tail of the shield, and simultaneously the 12V DC converted by a rear DC power supply system is supplied to a forward radar and a wireless signal transmitting module.
Description
Technical field
The utility model relates to the structure of modification of center steering body in the relevant shield machine of shield excavation machine technical field.
Background technology
Shield-tunneling construction the place ahead situation is complicated and changeable, usually has unfavorable geology factor and unknown treasure trove, as municipal pipeline, artificial constructed thing, bubble, bubble, rubble, shipwreck etc.These factors can cause work plane landslide, water burst, and are light then influence the driving speed in tunnel, incur loss through delay the duration, the increase construction cost; Heavy then cause device damage and casualties, consequence is hardly imaginable.So, need carry out forward probe and identification to the geological condition in shield structure work plane the place ahead.
Ground penetrating radar is a kind of novel nondestructive testing high-tech product, and attaching it to and surveying front geological on the cutter head of shield machine is a kind of innovation utilization.The geological condition information that radar obtained that is positioned at shield structure head need be sent to shield machine afterbody control room, and can show on computers after special-purpose software is handled.But, run into following two difficulties:
1, radar antenna and DAD controller are installed on the shield machine head cutterhead and with cutterhead and rotate, and the geological information that radar obtains need be sent in the control room of shield structure afterbody and could handle on computers and show that this solves the transmission of Information problem with regard to needs.Because transmission range is far away, and exist a lot of metals to disturb in the shield machine, if drawbacks such as jitter must appear in whole process by wireless transmission method, so adopt wireless transmission method not meet the demands separately.In addition, cutterhead rotates with respect to shield tail control room, if the whole process using wire transmission mode can produce the coiling problem again, so adopt wire transmission mode also to be not suitable for separately.
2, the radar of the Shi Yonging K2 type ground penetrating radar of producing for Italian IDS company.This radar adopts storage battery power supply, 12 volts of voltages, its advantage are that the voltage and current fluctuation range is little, can guarantee the accurate operation of radar and the undistorted transmission of signal thereof, shortcoming is that the continued power ability is not enough, needs charging could continue to use after powering continuously tens hours.Because shield machine is longer in the underground construction time, reach sometimes about half a year, during can not charge to battery, and underground environment is very moist, be not suitable for battery operated, so adopt the storage battery power supply mode and be not suitable for.For this reason specialized designs one the cover DC power-supply system.This DC power-supply system can be converted into the alternating current of 220 volts of job sites 12 volts direct current.But,, also can produce the coiling problem in the centre revolving joint part if adopt the electric wire transferring electric power.So 12 volts of direct currents that how DC power-supply system provided are the difficult problems that needs solve by the head that shield structure afterbody passes to the shield structure.
Summary of the invention
The utility model purpose is to provide a kind of reconstruction structure of shield machine center steering body, by transforming the center steering body in the shield machine otch ring, finish the geological information that the ground penetrating radar that will be positioned at shield machine head cutterhead detects and transfer to shield structure afterbody control room, finish 12 volts of direct currents that the rear DC power-supply system is transformed simultaneously and supply with the place ahead radar and wireless signal transmitting module, satisfy its need for electricity.Can realize that thus detection radar is applied to the forward direction detection of underground shield machine.
The utility model is achieved through the following technical solutions, the architectural feature that this centre revolving joint is transformed body is: have through hole on the revolving body internal chamber wall, this through hole axially runs through whole revolving body to the end-fitting place, is furnished with the power line of being drawn by shield cutter position DAD controller and wireless transmitter module and prolongation antenna and the coaxial cable of wireless transmit AP in the through hole; The place is equipped with electrical power connection device at the revolving body end-fitting, this electrical power connection device comprises two brush assemblies, outer conducting ring, interior conducting ring, isolator, inside and outside conducting ring is provided with aperture, the power line that cutterhead position DAD controller and wireless transmitter module are drawn is by the electric connection of this aperture realization with inside and outside conducting ring, inside and outside conducting ring is installed on the isolator by screw respectively, and isolator is fixed on the revolving body by screw; Each brush assembly comprises brush body, brush, spring, cylindrical pin with external thread, brush assembly is connected with described conducting ring by brush, brush, spring, cylindrical pin with external thread are located in the brush body, brush body right-hand member is provided with the hole, cylindrical pin with external thread is twisted solid on brush, brush one end inserts in the spring cavity, and its other end contacts with conducting ring; Brush is tightly pushed down conducting ring all the time and is realized contacting with the electrical of conducting ring under spring elastic force effect left, transmit the perforate of 12 volts of galvanic power lines by the brush assembly right-hand member from shield tail being used to of attracting and enter brush assembly, pass spring, electrically connect by cylindrical pin with external thread and brush; Two conducting rings are connected with power line in the revolving body through hole respectively again.The prolongation antenna of the wireless route in the wireless receiving module nestles against the prolongation antenna of wireless transmit AP in center steering body joint, these two prolongation antennas carry out the wireless transmission of information.
The utility model center steering structural reform is made structure and also is provided with the proofing dust and protecting structure; comprise lid and cover; described brush assembly is twisted solid on cover by the brush body; there is bolt hole the outer ring of described lid and cover; the two links together by bolt; the airtight external side of center steering that is arranged in of described lid, described cover is placed in outside the electrical power connection device.The inner ring of described lid is equipped with dust ring and sealing ring.Described cover is not totally enclosed, and central openings along the circumferential direction has side opening uniformly, is suitable for the transmission of wireless signal.
The utility model structure does not need the key position of former centre revolving joint is changed, and has realized the transmission of galvanic conveying and radar information under the prerequisite that does not influence its original service behaviour.
Description of drawings
Fig. 1 is present technology shield machine structural representation
Fig. 2 is a radar signal transmission system structural representation
Fig. 3 is the improved structural representation of center steering body (right view a, main looking are cutd open figure b)
Fig. 4 is the partial cutaway figure (analyse at A, B two places) of center steering end of body joint transformation place
Fig. 5 is side (a) and inner (b) schematic diagram of cover of cover 142
Fig. 6 is the brush assembly schematic diagram
Description of symbols: 1-center steering body, 2-fixed body, 3-water pipe head, 4-screw, 11-through hole, the 121-isolator, the outer conducting ring of 122-, conducting ring in the 123-, 13-brush assembly, 131-brush body, 132-brush, 133-spring, 134-cylindrical pin with external thread, the 141-lid, 142-cover, 1421-medium pore, 1422-side opening, the 1423-installing hole, 1424-bolt hole, 51-centre revolving joint, 52-Tu Cang, the 6-cutterhead, 7-otch ring, 8-support ring, 9-shield tail
The specific embodiment
Below in conjunction with accompanying drawing technical solutions of the utility model are described further.
As shown in Figure 1, the common shield machine integral body of prior art can roughly be divided into three parts: otch ring, support ring and shield tail.Cutterhead is positioned at the place ahead of otch ring, and rotates.Support ring and shield tail do not rotate, and just move forward along the tunnel.Between cutterhead center and the support ring promptly in the otch ring center have the center steering body, the center steering body is the critical component that is used for to shield structure the place ahead transporting water, hydraulic oil and lubrication oil, comprises fixed body, revolving body, water pipe head etc.Radar and wireless transmitter module are installed on the shield cutter, and wireless receiving module is installed in the shield tail, and computer is placed in the control room.
There are two difficult problems at prior art, proposed following solution:
1, for the geological information that radar obtained that will be installed on the cutterhead transfers to shield structure afterbody control room, designed the mode of wired and wireless combined transmission information.At the relative position that rotates with the shield tail of shield structure head cutterhead is that the both sides of centre revolving joint are provided with wireless transmitter module and receiver module respectively, adopt wireless transmission method between the wireless transmitter module of face-off and receiver module mutually, can avoid the coiling problem that causes because of rotation; And shield machine head radar DAD controller to wireless transmitter module and wireless receiving module to shield machine afterbody service depot approach all adopts wire transmission mode, thus the reliability and stability of guarantee information transmission.So,, need carry out corresponding transformation to centre revolving joint for realizing wireless transmitter module and the receiver module antenna wireless transmission of setting up staggered relatively separately.
2, transfer to head from the afterbody of shield structure smoothly for 12 volts of direct currents that DC power-supply system is transformed, to realize giving the purpose of the wireless transmitter module power supply in radar and the signal transmission system, designed the electrical power connection device structure, cooperation by rotatable conducting ring and non-rotary brush assembly contacts the transmission that realizes electric power, the coiling problem of avoiding conventional electric wire transmission means to cause.
In order to realize the conveying of transmission of Information and electric power, technique scheme has mainly been done the transformation of following four aspects to the center revolving body:
1, the boring diameter is the through hole of 20mm on the center steering body section, and coaxial cable in the wireless transmitter module and prolongation antenna, power circuit can arrive center steering body joint via this through hole.
2, the electrical power connection device that brush, interior conducting ring, outer conducting ring and dead ring are formed has been installed in the end of centre revolving joint, has been realized 12 volts direct current transmission from shield structure afterbody to the cutterhead head, solved because the coiling problem of rotation initiation.
3, in the end and the outside of center steering body hermetically-sealed constructions such as lid and cover have been installed, had both been protected inner structure, avoided the pollution of dust again.
Survey at the shield machine forward direction for realizing radar, the geological condition information that radar obtained that will be positioned at shield structure head in real time need be sent to shield machine afterbody control room, and after handling, special-purpose software can show on computers, need to make up radar signal transmission system as shown in Figure 2, this system comprises radar, wireless transmitter module, wireless receiving module, the control room computer, the DC power-supply system of band transformer, wireless transmitter module is made of wireless transmit AP and prolongation antenna thereof, the wireless signal receiver module is wireless router and prolongs the antenna formation that wireless signal transmitting module and wireless signal receiver module are formed WLAN jointly.Radar is connected by twisted-pair feeder with wireless transmit AP, and wireless transmit AP is connected by coaxial cable with the prolongation antenna, and the control room computer is connected by twisted-pair feeder with wireless router, and wireless route is connected by coaxial cable with the prolongation antenna.The analog signal that radar antenna obtained becomes data signal after its controller is handled, and the Ethernet interface that passes through its controller inserts wireless transmitter module, after wireless receiving module receives, be sent to the computer in the shield tail control room, after special-purpose software is handled, radar image shown.Connect by the corresponding antenna wireless that prolongs between wireless transmitter module, the wireless receiving module, outer exchange 12 volts direct currents that power supply provides via the transformer DC power-supply system by electrical power connection device with electric power transfer to shield structure head, power for respectively the wireless transmit AP of wireless transmitter module and the DAD controller of radar.
Be connected with twisted-pair feeder between the radar of installing on the cutterhead of shield structure forefront and the wireless transmit AP, wireless transmit AP is connected by coaxial cable with prolonging between the antenna, and the antenna after the prolongation is in cutterhead center culvert arrival center steering body; The prolongation antenna of the wireless route in the wireless receiving module is positioned near the center steering body, and wireless route is positioned at shield structure afterbody, and wireless route is connected by coaxial cable with the prolongation antenna; At last, wireless route is connected with the control room computer by twisted-pair feeder.
As shown in Figure 3, revolving body 1 inner hollow is connected with water pipe head 3 at end-fitting place internal cavities, and whole revolving body 1 is arranged in fixed body 2 chambeies, and the utility model mainly is the transformation to revolving body head joint.
As shown in Figure 3, Figure 4, at first on revolving body 1 internal chamber wall, have through hole 11, this through hole 11 axially runs through whole revolving body to the end-fitting place, is furnished with prolongation antenna and the coaxial cable (this coaxial cable is used to be connected wireless transmit AP and prolongs antenna) of the power line of being drawn by shield cutter position DAD controller and wireless transmitter module and wireless transmit AP in the through hole 11.
In this revolving body 1 joint electrical power connection device is installed then, this electrical power connection device comprises two brush assemblies 13, outer conducting ring 122, interior conducting ring 123, isolator 121, inside and outside conducting ring is provided with aperture, the power line that cutterhead position DAD controller and wireless transmitter module are drawn is by the electric connection of this aperture realization with inside and outside conducting ring, inside and outside conducting ring is installed on the isolator 121 by screw 4 respectively, and isolator is fixed on the revolving body 1 by screw 4.As shown in Figure 6, each brush assembly 13 comprises brush body 131, brush 132, spring 133, cylindrical pin with external thread 134, two brush assemblies 13 are twisted solid on two installing holes 1423 that cover 142 is provided with by brush body 131, brush assembly 13 is connected with described conducting ring by brush 132, brush 132, spring 133, cylindrical pin with external thread 134 is located in the brush body 131, brush body 131 right-hand members are provided with the DC power line introducing that the shield tail is convenient in the hole, cylindrical pin with external thread 134 is twisted solid on brush 132, brush 132 1 ends insert in spring 133 chambeies, its other end contacts with conducting ring, thus guarantee brush 132 under spring 133 elastic force effect left all the time tightly the conducting ring of pushing down realize contacting with the electrical of conducting ring.Inside and outside conducting ring is respectively to there being a brush assembly.Transmit the perforate of 12 volts of galvanic power lines by brush assembly 13 right-hand members from shield tail being used to of drawing and enter brush assembly, pass spring 133, electrically connect by cylindrical pin with external thread 134 and brush 132.Cylindrical pin with external thread 134 is used for power line is connected with brush 132 on the one hand, play the guiding role on the other hand, makes brush 132 can left and right sides fine motion brush body 131 under the effect of spring 133, and assurance brush 132 is being pressed on the conducting ring tightly all the time.The next galvanic both positive and negative polarity of shield tail transmission has just arrived inside and outside conducting ring respectively by brush 132 like this.Inside and outside conducting ring is connected with power line in the revolving body through hole 11 respectively again, has so just arrived the DAD controller and the wireless transmitter module of cutterhead part by power line transmission, for its power supply, realizes 12 volts of direct current transmission from shield structure afterbody to the cutterhead head.Because dead ring 121 and inside and outside conducting ring are followed revolving body 1 rotation in the electrical power connection device, and lid 141, cover 142 and brush assembly 13 maintain static, again because inside and outside conducting ring is circular, even being in rotation status, they still can keep in touch, effectively transferring electric power with the brush in the brush assembly.Therefore the coiling problem that the fine cutterhead rotation that must solve shield machine causes.
The prolongation antenna of the wireless route in the wireless receiving module nestles against the prolongation antenna of wireless transmit AP in center steering body 1 joint, these two prolongation antennas carry out the wireless transmission of information, when wireless transmit AP rotated with cutterhead, wireless transmit AP and wireless route still can realize transmission of Information.The prolongation antenna of wireless route is connected with wireless route by coaxial cable, and wireless route is connected with the computer that is positioned at shield structure afterbody control room by twisted-pair feeder again.Like this, just realized the control room of information, equally also avoided because the coiling problem that rotation causes from the radar transmissions in the shield structure head cutterhead to shield structure afterbody.
The inner ring of lid 141 is equipped with dust ring and sealing ring, as shown in Figure 4, lid 141 airtight center steering body 1 outsides that are arranged in, described cover 142 is placed in outside the electrical power connection device, there is bolt hole 1424 outer ring of lid 141 and cover 142, the two links together by bolt, can effectively prevent dust and seal.As shown in Figure 5, cover 142 is provided with medium pore 1421 and has side opening 1422 uniformly along circumference, guarantees the smooth transmission of wireless messages.
The wireless signal of wireless transmitter module need just can be transferred on the receiver module by centre revolving joint of the present utility model, and the direct current that the electric power system of shield tail provides also will just can flow to radar and transmitter module by this centre revolving joint.
Claims (5)
1. a shield structure centre revolving joint is transformed body, it is characterized in that, on the revolving body internal chamber wall, have through hole, this through hole axially runs through whole revolving body to the end-fitting place, is furnished with the power line of being drawn by shield cutter position DAD controller and wireless transmitter module and prolongation antenna and the coaxial cable of wireless transmit AP in the through hole; The place is equipped with electrical power connection device at the revolving body end-fitting, this electrical power connection device comprises two brush assemblies, outer conducting ring, interior conducting ring, isolator, inside and outside conducting ring is provided with aperture, the power line that cutterhead position DAD controller and wireless transmitter module are drawn is by the electric connection of this aperture realization with inside and outside conducting ring, inside and outside conducting ring is installed on the isolator by screw respectively, and isolator is fixed on the revolving body by screw; Each brush assembly comprises brush body, brush, spring, cylindrical pin with external thread, brush assembly is connected with described conducting ring by brush, brush, spring, cylindrical pin with external thread are located in the brush body, brush body right-hand member is provided with the hole, cylindrical pin with external thread is twisted solid on brush, brush one end inserts in the spring cavity, and its other end contacts with conducting ring; Brush is tightly pushed down conducting ring all the time and is realized contacting with the electrical of conducting ring under spring elastic force effect left, transmit the perforate of 12 volts of galvanic power lines by the brush assembly right-hand member from shield tail being used to of drawing and enter brush assembly, pass spring, electrically connect by cylindrical pin with external thread and brush; Two conducting rings are connected with power line in the revolving body through hole respectively again.
2. transformation body as claimed in claim 1 is characterized in that, the prolongation antenna of the wireless route in the wireless receiving module nestles against the prolongation antenna of wireless transmit AP in center steering body joint, and these two prolongation antennas carry out the wireless receiving of information.
3. transformation body as claimed in claim 1; it is characterized in that; this centre revolving joint is transformed body and also is provided with the proofing dust and protecting structure; comprise lid and cover; described brush assembly is twisted admittedly on cover by the brush body, and there is bolt hole the outer ring of described lid and cover, and the two links together by bolt; the airtight external side of center steering that is arranged in of described lid, described cover is placed in outside the electrical power connection device.
4. transformation body as claimed in claim 3 is characterized in that the inner ring of described lid is equipped with dust ring and sealing ring.
5. transformation body as claimed in claim 3 is characterized in that, described cover central openings along the circumferential direction evenly has side opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202927457U CN201843619U (en) | 2010-08-16 | 2010-08-16 | Improved body of central rotary joint of shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202927457U CN201843619U (en) | 2010-08-16 | 2010-08-16 | Improved body of central rotary joint of shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201843619U true CN201843619U (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202927457U Expired - Lifetime CN201843619U (en) | 2010-08-16 | 2010-08-16 | Improved body of central rotary joint of shield |
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| CN (1) | CN201843619U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114858A (en) * | 2013-01-08 | 2013-05-22 | 中铁隧道集团有限公司 | Ultrasonic real-time monitoring device for shield machine cutter anti-abrasion block thickness abrasion loss |
| CN104131818A (en) * | 2014-07-18 | 2014-11-05 | 中铁工程装备集团有限公司 | Center rotary joint of earth pressure balance shield machine |
| CN104942635A (en) * | 2015-07-21 | 2015-09-30 | 安阳工学院 | Dual-drive tandem motor electro-spindle |
| CN105089672A (en) * | 2015-08-19 | 2015-11-25 | 武汉船用机械有限责任公司 | Supporting tool for rotating joint of shield tunneling machine |
| CN106050250A (en) * | 2016-07-20 | 2016-10-26 | 江苏腾旋科技股份有限公司 | Central rotary joint for shield tunneling machine |
| CN109779645A (en) * | 2019-02-22 | 2019-05-21 | 中船重型装备有限公司 | A kind of center steering body for the new linked vector graph that concentricity tolerance is high |
-
2010
- 2010-08-16 CN CN2010202927457U patent/CN201843619U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114858A (en) * | 2013-01-08 | 2013-05-22 | 中铁隧道集团有限公司 | Ultrasonic real-time monitoring device for shield machine cutter anti-abrasion block thickness abrasion loss |
| CN103114858B (en) * | 2013-01-08 | 2014-12-10 | 中铁隧道集团有限公司 | Ultrasonic real-time monitoring device for shield machine cutter anti-abrasion block thickness abrasion loss |
| CN104131818A (en) * | 2014-07-18 | 2014-11-05 | 中铁工程装备集团有限公司 | Center rotary joint of earth pressure balance shield machine |
| CN104131818B (en) * | 2014-07-18 | 2017-01-25 | 中铁工程装备集团有限公司 | Center rotary joint of earth pressure balance shield machine |
| CN104942635A (en) * | 2015-07-21 | 2015-09-30 | 安阳工学院 | Dual-drive tandem motor electro-spindle |
| CN105089672A (en) * | 2015-08-19 | 2015-11-25 | 武汉船用机械有限责任公司 | Supporting tool for rotating joint of shield tunneling machine |
| CN106050250A (en) * | 2016-07-20 | 2016-10-26 | 江苏腾旋科技股份有限公司 | Central rotary joint for shield tunneling machine |
| CN106050250B (en) * | 2016-07-20 | 2018-08-21 | 江苏腾旋科技股份有限公司 | A kind of central rotary joint of shield machine |
| CN109779645A (en) * | 2019-02-22 | 2019-05-21 | 中船重型装备有限公司 | A kind of center steering body for the new linked vector graph that concentricity tolerance is high |
| CN109779645B (en) * | 2019-02-22 | 2023-10-20 | 中船重型装备有限公司 | Novel connection type central revolving body with high coaxiality tolerance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110525 |
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| CX01 | Expiry of patent term |