CN209412708U - A kind of slip synchronizer and the bridge prestress pipeline tube drawing lashing trolley with slip synchronizer - Google Patents
A kind of slip synchronizer and the bridge prestress pipeline tube drawing lashing trolley with slip synchronizer Download PDFInfo
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- CN209412708U CN209412708U CN201821380446.1U CN201821380446U CN209412708U CN 209412708 U CN209412708 U CN 209412708U CN 201821380446 U CN201821380446 U CN 201821380446U CN 209412708 U CN209412708 U CN 209412708U
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- tube drawing
- trolley
- lashing
- gear
- pulling machine
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Abstract
The utility model relates to a kind of transmission devices, refer in particular to slip synchronizer, two transmission mechanism output shafts are respectively provided with outer swing arm and interior swing arm with intermediate axis connection, inside and outside swing arm has the intermediate gear on transition gear and jackshaft to be meshed, such a output shaft constitutes a complete transmission chain by gear, transition gear and the countershaft-gear on the output shaft, the output gear on another output shaft is reached, realizes two output shaft synchronous rotations.The utility model further relates to a kind of tube drawing lashing trolley, especially bridge prestress pipeline tube drawing lashing trolley.Including walking vehicle body, lifting device and tube drawing strand pulling machine, the transmission mechanism output shaft of two laterally adjacent chains of tube drawing strand pulling machine head is connected with slip synchronizer above-mentioned respectively.The utility model can guarantee stringent synchronization between two running parts of every road head well.
Description
Technical field
The utility model relates to a kind of transmission device, a kind of especially slip synchronizer.The utility model further relates to one kind
Tube drawing lashing trolley, especially bridge prestress pipeline tube drawing lashing trolley.
Background technique
CN207143737 U patent document discloses a kind of bridge prestress pipeline tube drawing lashing trolley, realizes " collection
Beam is reeved technique ".Solves " unordered winding " problem of " single technique of reeving " puzzlement for a long time.But the technology is lacked there are following
Fall into: when the transmission mechanism payload difference of each pair of chain of tube drawing strand pulling machine head, Rated motor revolving speed also has certain
Difference under the influence of prolonged electric motor starting error and work load, causes each pair of adjacent chain revolving speed asynchronous, two groups of slips are mutual
It collides, seriously affects normal operation.In addition, two-door two door frame of frame form lifting is asynchronous, use for a long time, accumulated error is led
It causes head unhorizontal, head is influenced after inclination and is worked normally.Simple gate frame form is in door frame and the not parallel one side of bridge web
Head alignment can not show a candle to door frame and the not parallel one side of bridge web is convenient.Head is positioned using lifting door frame, so that head
Positioning is inaccurate.Tube drawing strand pulling machine head chain slips can not hold the lesser sebific duct of diameter or steel wire bundle tightly.Lateral no height
The diagonal brace of effect and strength, it is unstable after causing head to increase；Running gear carrier frame is coplanar rectangle, cooperates tire height
After occur not applicable with beam field normal level problem, influence normal use.When carrying out wearing several operations, artificial judgment lashing is needed
Whether length is suitable, low efficiency and is difficult to ensure the accurate of lashing length.
Utility model content
The utility model is to rotate nonsynchronous defect for each pair of chain of tube drawing strand pulling machine head in the prior art, is proposed
A kind of slip synchronizer guarantees that each pair of chain rotation synchronizes.For the positioning of head in the prior art, inaccurate, car body is stablized simultaneously
Property not high, chassis of vehicle body height and bridge height mismatch etc. technological deficiencies, propose a kind of two chain syn-chro-steps of head head
Autostop pulls out glue when good, registration, car body stability, chassis of vehicle body height and bridge height match, lashing is completed
Pipe steel strand trolley.
The utility model is achieved through the following technical solutions:
There is provided a kind of slip synchronizer, two transmission mechanism output shafts are respectively provided with the outer swing arm of intermediate axis connection and interior
Swing arm, inside and outside swing arm have the intermediate gear on transition gear and jackshaft to be meshed, and such a output shaft passes through the output
Gear, transition gear and countershaft-gear on axis constitute a complete transmission chain, reach defeated on another output shaft
Gear out realizes two output shaft synchronous rotations.
A kind of bridge prestress pipeline tube drawing lashing trolley, including walking vehicle body, lifting device and tube drawing lashing are also provided
Machine, it is characterized in that the transmission mechanism output shaft of two laterally adjacent chains of tube drawing strand pulling machine head is respectively provided with intermediate axis connection
Outer swing arm and interior swing arm, inside and outside swing arm has the intermediate gear on transition gear and jackshaft to be meshed, such a output
Axis constitutes a complete transmission chain by gear, transition gear and the countershaft-gear on the output shaft, reaches another
Output gear on output shaft realizes two output shaft synchronous rotations.
Preferably, respectively there is a lifting device at walking vehicle body both ends, and the drive cylinder of the lifting device at both ends is respectively with one
Synchronous fuel tank connection, the synchronous fuel tank includes the first cylinder barrel, the second cylinder barrel and the middle partition between two cylinder barrels, three
It is combined into the cylinder barrel of synchronous fuel tank, a piston rod passes through middle partition and can be free to slide by the hole of middle partition, the first cylinder barrel
There are first piston, second piston to be fixedly connected respectively with piston rod respectively in the second cylinder barrel, the oil inlet pipe difference of synchronous fuel tank
It is connected with the oil inlet of the first cylinder barrel, the second cylinder barrel, the oil outlet lifting device with both ends respectively of the first cylinder barrel, the second cylinder barrel
Drive cylinder.
Preferably, walking vehicle body one end has a lifting device, each column chain in tube drawing strand pulling machine head transverse direction be by
Two end to end chains composition on longitudinal direction.
Preferably, the slips interlaced arrangement on the laterally adjacent chain of tube drawing strand pulling machine head two.
Preferably, tube drawing strand pulling machine head includes transverse shifting frame and longitudinal movement frame, and transverse shifting frame is located
On the track of work top pedestal, it further includes transverse shifting that longitudinal movement frame, which is located on the track of transverse shifting frame,
Driving device and vertical movable driving equipment are connected with transverse shifting frame with longitudinal movement frame respectively.
Preferably, the chassis of walking vehicle body is region opposite end and the axletree coupling part that middle part accommodates work top
The concave structure of sinking.
Preferably, walking vehicle body is equipped with diagonal brace oil cylinder, and diagonal brace oil cylinder one end is connected with lifting door frame upper end, and the other end is
Free end, free end branch is on the ground when work.
Preferably, revolution counter is installed on one chain countershaft of tube drawing strand pulling machine head, the revolution counter will be secondary
The data of axis turnning circle are transmitted to a control unit, and described control unit is according to the number according to the countershaft turnning circle received
According to the motor of sending stop signal to tube drawing strand pulling machine head chain.
Preferably, laser sensor, the laser sensor and a wireless biography are installed in another beam-ends of trolley lashing
Sensor transmitter connects, and is equipped with wireless sensor receiver, the wireless sensor and a tube drawing strand pulling machine head on trolley
Delay switch connection in the motor feed circuit of chain.
Compared with prior art, technical solution used by the utility model can guarantee each pair of chain of head well
It operates synchronously, and the lifting of two door frames is synchronized, while head being made to be able to achieve essence in horizontal and vertical both direction
Determine position, chain slips can be applicable in any diameter, and the stability of car body greatly enhances, the height of chassis of vehicle body also with bridge
Height realize matched well, lashing reach appropriate length when autostop.
Detailed description of the invention
Fig. 1 is the overall structure diagram of bridge prestress pipeline tube drawing lashing trolley described in the utility model.
Fig. 2 is the cross-sectional view of synchronous fuel tank described in the utility model.
Fig. 3 is the structural schematic diagram of tube drawing strand pulling machine head driving chain driving device described in the utility model.
Fig. 4 is the structure of the slip synchronizer of tube drawing strand pulling machine head driving chain driving device described in the utility model
Schematic diagram.
Fig. 5 is the structural schematic diagram of tube drawing strand pulling machine head driving chain described in the utility model.
Fig. 6 is the partial enlarged view of tube drawing strand pulling machine head driving chain described in the utility model.
Fig. 7 is the traversing structural schematic diagram with vertical shift framework of tube drawing strand pulling machine head described in the utility model.
Fig. 8 is the structural schematic diagram of traffic under carriage described in the utility model.
Fig. 9 is bridge prestress pipeline tube drawing lashing trolley operation schematic diagram described in the utility model.
Figure 10 is the schematic view of the mounting position of revolution counter described in the utility model.
Figure 11 is the mounting structure schematic diagram of revolution counter described in the utility model.
Figure 12 is the working principle diagram of revolution counter described in the utility model and control unit.
Figure 13 is the working principle diagram of laser sensor described in the utility model and control unit.
It is 1 diagonal brace oil cylinder, 2 lifting door frames, 3 tube drawing strand pulling machines, 4 walking chassis, 5 synchronous fuel tanks, 6 traversing oil cylinders, 7 traversing
Wheel, 8 cross moving tracks, 9 vertical shift tracks, 10 vertical shift wheels, 11 vertical shift oil cylinders, 12 second cylinder barrels, 13 second pistons, partition, 15 in 14
First cylinder barrel, 16 first pistons, 17 piston rods, 18 main shaft third wheels 1,19 small over-wheels 1,20 small over-wheels 2,21 intermediate setting wheels, 22 are greatly
Third wheel 3,23 big third wheels 2,24 big third wheels 1,25 main shaft third wheels 2,26 main shaft assemblies, 27 sprocket wheels, 28 splines, 29 main shafts, 30 slips,
31 slips, 32 revolution counters, 33 revolution counter assemblies, 34 head chain motor switch, 35 trolley power supplys, 36 heads are total
It is counted at, 37 revolution counters switch, 38 revolution counter power supplys, 39 control units, 40 revolution counter stators, 41 rotations
Device fixes bracket, 42 revolution counter movers, 43 head countershafts, 44 head upper cover plates, 45 steel strand wires traversing through end anchor mouths, 46 laser
Sensor, 47 wireless sensor receivers, 48 trolley working machine heads, 49 trolley master switch, 50 delay switch, 51 wireless sensors
Transmitter.
Specific embodiment
Specific embodiment of the present utility model is described in further detail below in conjunction with attached drawing.
As shown in Figure 1, bridge prestress pipeline tube drawing lashing trolley described in the utility model, including walking vehicle body, liter
Door frame 2 and tube drawing strand pulling machine 3 drop, and walking vehicle body is equipped with diagonal brace oil cylinder 1, and 1 one end of diagonal brace oil cylinder and lifting 2 upper end of door frame connect
It connects, the other end is free end, and free end branch is on the ground when work.The support of diagonal brace oil cylinder 1 is so that the stability of walking vehicle body is big
Big enhancing.
In order to guarantee that the lifting of lifting door frame 2 at both ends synchronizes, the drive cylinder of the lifting door frame 2 at both ends is respectively and such as Fig. 2
Shown in synchronous fuel tank 5 connect.Synchronous fuel tank 5 includes the first cylinder barrel 15, the second cylinder barrel 12 and the interval between two cylinder barrels
Plate 14, three are combined into the cylinder barrel of synchronous fuel tank 5, and a piston rod 17 passes through middle partition 14 and can pass through the hole of middle partition 14 certainly
By sliding, there are first piston 16, second piston 13 fixed with piston rod 17 respectively in the first cylinder barrel 15 and the second cylinder barrel 12 respectively
Connection, the oil inlet pipe of synchronous fuel tank 5 are connected with the first cylinder barrel 15, the oil inlet P 1 of the second cylinder barrel 12, P2 respectively, the first cylinder barrel
15, oil outlet K1, K2 of the second cylinder barrel 12 are connected with the drive cylinder of the lifting door frame 2 at both ends respectively.When what is come from pumping plant
System pressure oil passes through oil inlet P 1 by oil connection KO simultaneously, P2 enters the first cylinder barrel 15 and the second cylinder barrel 12, promotion
When piston rod 17 is moved to the left, the first cylinder barrel 15, the second cylinder barrel 12 go up and down door frame 2 to two by oil outlet K1, K2 respectively
Drive cylinder fuel feeding, it is not difficult to find out that, make two oil outlets of synchronous fuel tank 5 even if the load of two lifting door frames 2 is different
Oil pressure at K1, K2 is different, but is essentially equal by the fuel delivery of the two oil outlets K1, K2, therefore can guarantee
Even if the adjustable height of two lifting door frames 2 is identical in the case where load difference.
As shown in figure 3, each column chain in tube drawing strand pulling machine head transverse direction described in the utility model is by longitudinal upper head
Two chains L1 and the L2 composition that tail connects, so that can work at left and right sides of trolley.As shown in figure 9, due to lifting
The angle of door frame 2 and the angle parallel of bridge web side, the trolley left and right sides work alternatively, and trolley can be made to pass through transformation
Easily realize the hole on tube drawing strand pulling machine head alignment bridge web side in direction.
As shown in figure 3, figure 4 and figure 5, the driver of two adjacent chains of tube drawing strand pulling machine head described in the utility model
Structure output shaft 19,20 is respectively provided with the outer swing arm 21 and interior swing arm 22 connected with jackshaft 23, and inside and outside swing arm 21,22 had
The intermediate gear 24 crossed on gear and jackshaft 23 is meshed, such a output shaft 19 by gear 18 on the output shaft,
Transition gear and countershaft-gear 24 constitute a complete transmission chain, reach the output gear on another output shaft 20
25。
When the transmission mechanism payload difference of two adjacent chains, Rated motor revolving speed also has certain difference, and
Above-mentioned apparatus is strictly consistent two independent transmission mechanism output shafts 19, the constraint of 20 revolving speeds.And when two adjacent chains
Transmission mechanism occur relative displacement when, the angle of interior outer swing arm 21,22 can change correspondingly, but be made of series of gears
Transmission chain center away from remaining constant, so that still the revolving speed of two independent transmission mechanism output shafts 19,20 is constrained
Strictly it is consistent.
As shown in fig. 6, slips 30,31 interlaced arrangements on the laterally adjacent chain of tube drawing strand pulling machine head two.This arrangement
Mode allows adjacent chain to be used to the smaller hose of clamping diameter or steel wire bundle.
As shown in fig. 7, tube drawing strand pulling machine head described in the utility model includes transverse shifting frame and longitudinal movement frame
The traversing wheel 7 of frame, transverse shifting frame is located on the cross moving track 8 of work top pedestal, vertically moves the vertical shift wheel of frame
10 are located on the vertical shift track 9 of transverse shifting frame, and transverse shifting frame is driven by traversing oil cylinder 6, longitudinal movement frame by
Vertical shift oil cylinder 11 drives.When work, walking vehicle body is parked in suitable position, and lifting door frame 2 drives work top to be elevated to suitable height
Degree uses the vertical shift frame of oil cylinder push belt idler wheel so that tube drawing strand pulling machine head is substantially aligned with the position for needing tube drawing lashing later
Frame, the further accurate movement of traversing frame, precisely align tube drawing strand pulling machine head, and continuation is slowly accurately pushed to harness
Position.
As shown in Fig. 1, Fig. 8, Fig. 9, the walking chassis 4 of walking vehicle body is the region opposite end that middle part accommodates work top
The concave structure to sink with axletree coupling part.The structure makes the chassis compared to coplanar rectangle, tube drawing strand pulling machine head
Lower position can be dropped to, to expand the bridge height range for keeping the operating position of tube drawing strand pulling machine applicable.
As shown in Figure 10, revolution counter 32 is installed on one chain countershaft of tube drawing strand pulling machine head, it as shown in figure 11, will
Revolution counter stator 40 is connected with head upper cover plate 44 by the fixed bracket 41 of revolution counter, and revolution counter stator 40 is made
It is fixed；Revolution counter mover 42 and head countershaft 43 are bolted, revolution counter mover 42 is made to follow head pair
Axis 43 rotates synchronously, to record the turnning circle of head countershaft 43.As shown in figure 12, revolution counter 32 is by countershaft turning collar
Several data are transmitted to a control unit 39, and described control unit 39 is sent out according to according to the data of the countershaft turnning circle received
Motor of the stop signal to tube drawing strand pulling machine head chain out.The device passes through conversion push length and turnning circle, setting limit
Turnning circle processed.During lashing, when not starting lashing, after steel strand wires are put in place, revolution counter switch 37 is opened,
Head power supply 35 is opened again and starts lashing, and the turnning circle of 33 start recording axis of revolution counter assembly is reached by lashing length
After the limitation turnning circle of decision, revolution counter 32 issues signal, reaches control unit 39, and control unit 39 issues signal,
It controls head chain motor switch 34 to disconnect, trolley power supply 35 stops powering to machine head assembly 36, and machine head assembly 36 stops work
Make；During tube drawing, the switch of revolution counter 37 is kept to disconnect, control unit 39 no longer receives signal, means at this time
Revolution counter 32 fails, and avoids having an impact to pulling out sebific duct.
As shown in figure 13, laser sensor 46 is installed in another beam-ends of trolley lashing, wireless biography is installed on trolley
Sensor receiver 47, the wireless sensor receiver 47 receive the signal that laser sensor 46 is sent and send it to one
Control unit, control unit according to the signal that receives issue stop signal to tube drawing strand pulling machine head chain motor.Laser
Sensor 46 is mounted on another beam-ends of trolley lashing, is steel strand wires traversing through end anchor mouth 45, when laser sensor 46 senses steel
When twisted wire is pierced by steel strand wires traversing through end anchor mouth 45, signal is issued, wireless sensor transmitter 51 is made to issue signal, is located on trolley
Wireless sensor receiver 47 to delay switch 50 transmit signal, after delay switch 50 receives signal, extend a period of time (this
Time is adjustable) general supply is closed, the extended time is, after steel strand wires are pierced by beam-ends, the time required for suitable position is reached, this
Time is related with lashing speed；After extending the time, 50 disconnecting circuit of delay switch, trolley general supply 49 is without normal direction trolley work
Make the power supply of head 48, stops lashing.
Claims (16)
1. a kind of slip synchronizer, it is characterized in that two transmission mechanism output shafts be respectively provided with the outer swing arm of intermediate axis connection and
Interior swing arm, inside and outside swing arm have the intermediate gear on transition gear and jackshaft to be meshed, and such a output shaft is defeated by this
Gear, transition gear and countershaft-gear on shaft constitute a complete transmission chain, reach on another output shaft
Output gear realizes two output shaft synchronous rotations.
2. a kind of bridge prestress pipeline tube drawing lashing trolley, including walking vehicle body, lifting device and tube drawing strand pulling machine, feature
It is that the transmission mechanism output shaft of two laterally adjacent chains of tube drawing strand pulling machine head is respectively provided with the outer swing arm with intermediate axis connection
With interior swing arm, inside and outside swing arm has the intermediate gear on transition gear and jackshaft to be meshed, and such a output shaft is by being somebody's turn to do
Gear, transition gear and countershaft-gear on output shaft constitute a complete transmission chain, reach on another output shaft
Output gear, realize the rotation of two output shaft synchronous.
3. bridge prestress pipeline tube drawing lashing trolley as claimed in claim 2, it is characterized in that walking vehicle body both ends respectively have one
A lifting device, the drive cylinder of the lifting device at both ends are connected with a synchronous fuel tank respectively, and the synchronous fuel tank includes the
One cylinder barrel, the second cylinder barrel and the middle partition between two cylinder barrels, three are combined into the cylinder barrel of synchronous fuel tank, and a piston rod is worn
Crossing middle partition simultaneously can be free to slide by the hole of middle partition, has first piston, second to live in the first cylinder barrel and the second cylinder barrel respectively
Plug is fixedly connected with piston rod respectively, and the oil inlet pipe of synchronous fuel tank is connected with the oil inlet of the first cylinder barrel, the second cylinder barrel respectively, the
The oil outlet drive cylinder with the lifting device at both ends respectively of one cylinder barrel, the second cylinder barrel.
4. bridge prestress pipeline tube drawing lashing trolley as claimed in claim 2, it is characterized in that walking vehicle body one end has one
Lifting device, each column chain in tube drawing strand pulling machine head transverse direction are made of longitudinally upper two end to end chains.
5. bridge prestress pipeline tube drawing lashing trolley as claimed in claim 2 or claim 3, it is characterized in that tube drawing strand pulling machine head two
Slips interlaced arrangement on laterally adjacent chain.
6. bridge prestress pipeline tube drawing lashing trolley as claimed in claim 4, it is characterized in that tube drawing strand pulling machine head two is horizontal
Slips interlaced arrangement on adjacent chain.
7. bridge prestress pipeline tube drawing lashing trolley as claimed in claim 5, it is characterized in that tube drawing strand pulling machine head includes
Transverse shifting frame and longitudinal movement frame, transverse shifting frame are located on the track of work top pedestal, vertically move frame
Frame is located on the track of transverse shifting frame, further includes transverse shifting driving device and vertical movable driving equipment, respectively and
Transverse shifting frame is connected with longitudinal movement frame.
8. the bridge prestress pipeline tube drawing lashing trolley as described in claim 2,3 or 6, it is characterized in that tube drawing strand pulling machine head
Including transverse shifting frame and longitudinal movement frame, transverse shifting frame is located on the track of work top pedestal, Zong Xiangyi
Dynamic frame is located on the track of transverse shifting frame, is further included transverse shifting driving device and vertical movable driving equipment, is divided
It is not connected with transverse shifting frame with longitudinal movement frame.
9. bridge prestress pipeline tube drawing lashing trolley as claimed in claim 7, it is characterized in that during the chassis of walking vehicle body is
The concave structure that portion accommodates the region opposite end of work top and axletree coupling part sinks.
10. bridge prestress pipeline tube drawing lashing trolley as claimed in claim 8, it is characterized in that during the chassis of walking vehicle body is
The concave structure that portion accommodates the region opposite end of work top and axletree coupling part sinks.
11. bridge prestress pipeline tube drawing lashing trolley as claimed in claim 9, it is characterized in that walking vehicle body is equipped with diagonal brace
Oil cylinder, diagonal brace oil cylinder one end connects with lifting door frame upper end, and the other end is free end, and free end is propped up on the ground when work.
12. bridge prestress pipeline tube drawing lashing trolley as claimed in claim 10, it is characterized in that walking vehicle body is equipped with tiltedly
Oil cylinder is supportted, diagonal brace oil cylinder one end and lifting door frame upper end connect, and the other end is free end, and free end is propped up on the ground when work.
13. bridge prestress pipeline tube drawing lashing trolley as claimed in claim 11, it is characterized in that tube drawing strand pulling machine head one
Revolution counter is installed, the data of countershaft turnning circle are transmitted to a control list by the revolution counter on chain countershaft
Member, described control unit issue stop signal to tube drawing strand pulling machine head according to the data according to the countershaft turnning circle received
The motor of chain.
14. bridge prestress pipeline tube drawing lashing trolley as claimed in claim 12, it is characterized in that tube drawing strand pulling machine head one
Revolution counter is installed, the data of countershaft turnning circle are transmitted to a control list by the revolution counter on chain countershaft
Member, described control unit issue stop signal to tube drawing strand pulling machine head according to the data according to the countershaft turnning circle received
The motor of chain.
15. bridge prestress pipeline tube drawing lashing trolley as claimed in claim 13, it is characterized in that in the another of trolley lashing
Beam-ends is equipped with laser sensor, the laser sensor and wireless sensor transmitter connection, and it is unlimited to be equipped on trolley
Delay switch in the motor feed circuit of transducer receivers, the wireless sensor and a tube drawing strand pulling machine head chain connects
It connects.
16. bridge prestress pipeline tube drawing lashing trolley as claimed in claim 14, it is characterized in that in the another of trolley lashing
Beam-ends is equipped with laser sensor, the laser sensor and wireless sensor transmitter connection, and it is unlimited to be equipped on trolley
Delay switch in the motor feed circuit of transducer receivers, the wireless sensor and a tube drawing strand pulling machine head chain connects
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821380446.1U CN209412708U (en) | 2018-08-24 | 2018-08-24 | A kind of slip synchronizer and the bridge prestress pipeline tube drawing lashing trolley with slip synchronizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821380446.1U CN209412708U (en) | 2018-08-24 | 2018-08-24 | A kind of slip synchronizer and the bridge prestress pipeline tube drawing lashing trolley with slip synchronizer |
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| Publication Number | Publication Date |
|---|---|
| CN209412708U true CN209412708U (en) | 2019-09-20 |
Family
ID=67930506
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821380446.1U Active CN209412708U (en) | 2018-08-24 | 2018-08-24 | A kind of slip synchronizer and the bridge prestress pipeline tube drawing lashing trolley with slip synchronizer |
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| CN (1) | CN209412708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824216A (en) * | 2018-08-24 | 2018-11-16 | 北京中铁房山桥梁有限公司 | A kind of slip synchronizer and prestressed girder pipeline withdrawing sebific duct and whole beam lashing trolley with slip synchronizer |
-
2018
- 2018-08-24 CN CN201821380446.1U patent/CN209412708U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824216A (en) * | 2018-08-24 | 2018-11-16 | 北京中铁房山桥梁有限公司 | A kind of slip synchronizer and prestressed girder pipeline withdrawing sebific duct and whole beam lashing trolley with slip synchronizer |
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