CN114890109A - Large transformer steering device and method - Google Patents
Large transformer steering device and method Download PDFInfo
- Publication number
- CN114890109A CN114890109A CN202210556600.0A CN202210556600A CN114890109A CN 114890109 A CN114890109 A CN 114890109A CN 202210556600 A CN202210556600 A CN 202210556600A CN 114890109 A CN114890109 A CN 114890109A
- Authority
- CN
- China
- Prior art keywords
- turntable
- steel rail
- annular
- steel
- steering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 134
- 239000010959 steel Substances 0.000 claims abstract description 134
- 230000007704 transition Effects 0.000 claims abstract description 21
- 230000008859 change Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
- B65G47/53—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices between conveyors which cross one another
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G35/00—Mechanical conveyors not otherwise provided for
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention provides a large-scale transformer steering device and a method, wherein the steering device comprises two steel rails, the extending directions of the two steel rails are different, and annular turntables are arranged at the corners of the two steel rails; the annular turntable is provided with a turntable steel rail, a transition steel rail is arranged between the turntable steel rail and the steel rail to form connection between the turntable steel rail and the steel rail, the center of the annular turntable is provided with a center buttress, and the annular turntable rotates along the center buttress at the center to form steering of the large transformer. The steering device provided by the invention can realize steering of a 300 t-grade large transformer, and has a small turning radius; the steering method provided by the invention has the advantages that the steering process is simple, the transformer does not need to be lifted, the steering is realized by the rolling friction of the support balls, the resistance is small, and the required tension of the winch is small; the track of the support ball in the steering device provided by the invention is fixed, the stress is uniform, each support ball bears the gravity of the transformer stably in the steering process, and the reliability is high.
Description
Technical Field
The invention belongs to the technical field of large-scale transformer installation, and particularly relates to a steering device and method for a large-scale transformer.
Background
A plurality of large-scale pumped storage power stations and hydropower stations are located in mountains, transformers need to be transported to the mountains, the power stations are limited by terrain and geological conditions, a traffic hole entering a factory is perpendicular to a transformer installation room, and one-side steering is needed when the transformers are in place. The appearance of a large transformer with the capacity of 360MVA and above is a long strip shape, the radius ratio of the transformer transport vehicle turning in an underground workshop is larger, if the transport vehicle is adopted for steering, the excavation investment of the underground workshop is very large, the requirement on the technical level of a driver is also very high, and the loss is large once the fault occurs.
Chinese patent CN102110955A discloses a steering device based on circular track, but because the pulley of the trolley is straight and the radian of the track has deviation, the phenomenon of jamming is easy to occur.
Chinese patent CN207107816U discloses a steering structure based on a turntable, wherein the turntable adopts a large number of small balls, the balls have no fixed tracks, the bearing pressure of the small balls is small, and the balls are easily unevenly distributed in the steering process, so that part of the balls are crushed, and a transformer loses balance and inclines; in addition, when the steering mode is used, tools such as a jack and the like are needed to lift the transformer, the process is time-consuming and labor-consuming, and the steering mode is suitable for steering the transformer with the weight below 200 t.
Disclosure of Invention
The first purpose of the present invention is to provide a large transformer steering device, which overcomes the shortcomings of the prior art.
Therefore, the above purpose of the invention is realized by the following technical scheme:
a large transformer steering device comprises two steel rails, wherein the two steel rails have different extending directions, and annular turntables are arranged at the corners of the two steel rails;
the annular turntable is provided with a turntable steel rail, a transition steel rail is arranged between the turntable steel rail and the steel rail to form connection between the turntable steel rail and the steel rail, the center of the annular turntable is provided with a center buttress, and the annular turntable rotates along the center buttress at the center to form steering of the large transformer.
While adopting the technical scheme, the invention can also adopt or combine the following technical scheme:
as a preferred technical scheme of the invention: the annular turntable comprises turntable steel rails, steel rail base plates, foundation bolts, main concrete blocks, steel plates and joint bars;
the turntable steel rail is welded on a steel rail base plate, the steel rail base plate is fixed on the main concrete through anchor bolts, and the steel plate is fixed on the lower surface of the main concrete through joint bars;
and a plurality of circles of supporting balls are arranged below the annular turntable along the central buttress.
As a preferred technical scheme of the invention: the edge of the annular turntable is provided with a U-shaped ring, and the U-shaped ring on the annular turntable is connected with a traction rope on the movable winch to pull the annular turntable to rotate.
As a preferred technical scheme of the invention: set up two U type rings on the outside ground of annular carousel, be certain angle and angle between two U type rings and satisfy large-scale transformer's steering angle, the U type ring on the ground is through the supporting spacing annular carousel of U type ring on locating pin and the annular carousel.
As a preferred technical scheme of the invention: an annular concave steel ring is pre-embedded in the concrete below the supporting ball, and the annular concave steel ring forms a rotating track of the supporting ball;
the lower surface of the steel plate is provided with a steel plate groove corresponding to the annular concave steel ring, and the steel plate groove is matched with the annular concave steel ring to form a rotary upper track and a rotary lower track of the supporting ball respectively.
As a preferred technical scheme of the invention: the steel plate groove corresponds to the sphere center angle of the supporting ball and is a 1 The angle a of the annular concave steel ring corresponding to the center of the supporting ball 2 ＞1.05a 1 (ii) a The thickness H of steel plate is greater than or equal to 2r 1-cos (a) 1 /2)]Wherein r is the radius of the support sphere; the transport weight of the transformer is M newtons; the supporting ball can be hollow or solid and can bear pressure P a ：
As a preferred technical scheme of the invention: a feed stopping arm is welded at one end of the turntable steel rail, and a temporary stop block is arranged at the other end of the turntable steel rail to limit a trolley loaded with a large transformer;
the advance-stopping arm is positioned at the front end of the trolley before the steering change of the large transformer, and the advance-stopping arm is just positioned at the rear end of the trolley after the annular turntable is steered so as to facilitate the trolley to enter the next steel rail.
As a preferred technical scheme of the invention: the center distance of the steel rails is L 1 (ii) a The length of the turntable steel rail on the annular turntable is L 1 The corresponding circumferential angle is 90 degrees; the inner radius of the annular turntable is
Outer radius R of annular turntable 4 ＝2R 1 。
As a preferred technical scheme of the invention: the radius of the supporting ball under the annular turntable is 0.45R ═ R 1 ；
The radius of the track of the inner ring of the supporting ball is R 2 ＝1.25R 1 The inner ring has 16 supporting balls;
the radius of the track of the outer ring of the supporting ball is R 3 ＝1.75R 1 And the outer ring has 22 supporting balls.
As a preferred technical scheme of the invention: length L of the transition rail 2 In the range of 0.1L 1 ～0.12L 1 Wherein L is 1 The center distance of the steel rails; the transition steel rail is used for adjusting gaps of 2-3 mm between the transition steel rail and the steel rail and between the transition steel rail and the turntable steel rail respectively.
It is still another object of the present invention to provide a method for turning a large transformer, which overcomes the disadvantages of the prior art.
Therefore, the above purpose of the invention is realized by the following technical scheme:
a steering method of a large transformer comprises the following steps:
s1, placing the large transformer on the trolley, and arranging the transition steel rail between the current steel rail of the large transformer and the turntable steel rail; a trolley for bearing the large transformer is transported to a turntable steel rail on the annular turntable along the steel rail, and a front side pulley of the trolley props against a stopping arm on the annular turntable;
s2, adopting a temporary stop block to prop against a rear pulley of the trolley;
s3, pulling out a positioning pin between the U-shaped ring on the foundation outside the annular turntable and the U-shaped ring of the annular turntable, and sleeving a traction rope of the mobile winch on the U-shaped ring of the annular turntable;
s4, starting the movable winch, slowly rotating the annular turntable by 90 degrees until the U-shaped ring of the annular turntable is aligned with the other U-shaped ring on the foundation outside the annular turntable, and then inserting the two U-shaped rings into the positioning pin to lock and fix the annular turntable;
and S5, transferring the transition steel rail to another steel rail, wherein the advance stopping arm on the annular turntable is just positioned at the rear end of the trolley, and the temporary stop block is removed, so that the large transformer can complete steering.
The invention provides a large-scale transformer steering device and a method, compared with the prior art, the large-scale transformer steering device has the following beneficial effects:
1) the steering device provided by the invention can realize steering of a 300 t-grade large transformer, and has a small turning radius;
2) the steering method provided by the invention has the advantages that the steering process is simple, the transformer does not need to be lifted, the steering is realized by the rolling friction of the support balls, the resistance is small, and the required tension of the winch is small;
3) the track of the support ball in the steering device provided by the invention is fixed, the stress is uniform, each support ball bears the gravity of the transformer stably in the steering process, and the reliability is high.
Drawings
Fig. 1 is a plan view of a large transformer steering apparatus according to the present invention in an initial state.
Fig. 2 is a plan view of the large transformer steering apparatus provided by the present invention when the large transformer steering apparatus is under traction of a winch.
Fig. 3 is a plan layout view of the large transformer steering device provided by the invention after steering is completed.
Fig. 4 is a cross-sectional view taken along line a-a of fig. 1.
Fig. 5 is a schematic diagram of the arrangement of the support balls and the steel plate grooves and the annular steel ring.
Fig. 6 is a view showing the mounting of the cart on the annular turntable.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A large transformer steering device comprises a steel rail 1, an annular turntable 2, a central buttress 3, a transition steel rail 4, a support ball 5, a U-shaped ring 6, a positioning pin 7, a blocking arm 8 and a temporary stop block 9.
The annular turntable 2 is provided with a turntable steel rail 2.1, a steel rail base plate 2.2, foundation bolts 2.3, a main concrete block 2.4, a steel plate 2.5, a dowel bar 2.6, a U-shaped ring 2.7 and an annular concave steel ring 2.8. The turntable steel rail 2.1 is welded on a steel rail base plate 2.2, and the steel rail base plate 2.2 is fixed on the main body concrete 2.4 through foundation bolts 2.3; the steel plate 2.5 is fixed on the lower surface of the main body concrete 2.4 through the dowel bar 2.6. Two circles of supporting balls 5 are arranged below the annular turntable 2; an annular concave steel ring 2.8 is pre-embedded in concrete below the supporting ball 5; one end of the steel rail 2.1 of the upper turntable of the annular turntable 2 is welded with a stopping arm 8.
The center distance of the steel rail 1 is L 1 1.5m, the turntable rail 2.1 on the ring turntable 2 has a length L 1 The corresponding circumferential angle is 90 degrees; inner radius R of annular turntable 1 1.06 m; outer radius R of annular turntable 4 2.12 m. The steel plate 2.5 is provided with two circles of steel plate grooves which are aligned with the centers of the pre-embedded annular steel ring 2.8 to jointly form a sliding track of the supporting ball 5. The radius r of the supporting ball 5 is 0.477 m; the radius of the inner ring track of the supporting ball is R 2 1.325m, the inner ring has 16 supporting balls; the radius of the outer ring orbit of the supporting ball is R 3 1.855m, the outer ring has 22 supporting balls.
The steel plate groove corresponds to the sphere center angle a of the supporting ball 1 Is 30 degrees, and the annular concave steel ring 2.8 corresponds to the sphere center angle a of the supporting ball 2 Is 32 degrees; the thickness H of the steel plate 2.5 is 4 mm; the transportation weight of the large transformer is 3000 kN; the support ball can be hollow or solid and can bear pressure P a Is 2MPa.
The transition steel rail 4 is arranged between the steel rail 1 and the upper turntable steel rail 2.1 of the annular turntable 2, and has a length L 2 The gap between the transition steel rail 4 and the steel rail 1 and between the transition steel rail 4 and the turntable steel rail 2.1 is adjusted to be 2mm, wherein the gap is 0.16 m.
The outer edge of the annular turntable 2 is provided with a U-shaped ring respectively along the central lines of the two steel rails, and the U-shaped ring is consistent with the direction of the U-shaped ring opening on the annular turntable so as to be convenient to rotate forwards and backwards and lock the U-shaped ring on the steel rail and the U-shaped ring on the annular turntable through the positioning pin 7.
A steering method of a large transformer comprises the following steps:
s1, placing the large transformer on the trolley, and arranging the transition steel rail between the current steel rail of the large transformer and the turntable steel rail; a trolley for bearing the large transformer is transported to a turntable steel rail on the annular turntable along the steel rail, and a front side pulley of the trolley props against a stopping arm on the annular turntable;
s2, adopting a temporary stop block to prop against a rear pulley of the trolley;
s3, pulling out a positioning pin between the U-shaped ring on the foundation outside the annular turntable and the U-shaped ring of the annular turntable, and sleeving a traction rope of the mobile winch on the U-shaped ring of the annular turntable;
s4, starting the movable winch, slowly rotating the annular turntable by 90 degrees until the U-shaped ring of the annular turntable is aligned with the other U-shaped ring on the foundation outside the annular turntable, and then inserting the two U-shaped rings into the positioning pin to lock and fix the annular turntable;
and S5, transferring the transition steel rail to another steel rail, wherein the advance stopping arm on the annular turntable is just positioned at the rear end of the trolley, and the temporary stop block is removed, so that the large transformer can complete steering.
The above-described embodiments are intended to illustrate the present invention, but not to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit of the present invention and the scope of the claims fall within the scope of the present invention.
Claims (11)
1. A large-scale transformer turns to device which characterized in that: the large transformer steering device comprises two steel rails, the extending directions of the two steel rails are different, and annular turntables are arranged at the corners of the two steel rails;
the annular turntable is provided with a turntable steel rail, a transition steel rail is arranged between the turntable steel rail and the steel rail to form connection between the turntable steel rail and the steel rail, the center of the annular turntable is provided with a center buttress, and the annular turntable rotates along the center buttress at the center to form steering of the large transformer.
2. The large transformer steering device according to claim 1, wherein: the annular turntable comprises turntable steel rails, steel rail base plates, foundation bolts, main concrete blocks, steel plates and joint bars;
the turntable steel rail is welded on a steel rail base plate, the steel rail base plate is fixed on the main concrete through anchor bolts, and the steel plate is fixed on the lower surface of the main concrete through joint bars;
and a plurality of circles of supporting balls are arranged below the annular turntable along the central buttress.
3. Large transformer turning device according to claim 1 or 2, characterized in that: the edge of the annular turntable is provided with a U-shaped ring, and the U-shaped ring on the annular turntable is connected with a traction rope on the movable winch to pull the annular turntable to rotate.
4. The large transformer steering device according to claim 3, wherein: set up two U type rings on the outside ground of annular carousel, be certain angle and angle between two U type rings and satisfy large-scale transformer's steering angle, the U type ring on the ground is through the supporting spacing annular carousel of U type ring on locating pin and the annular carousel.
5. The large transformer steering device according to claim 2, wherein: an annular concave steel ring is pre-embedded in the concrete below the supporting ball, and the annular concave steel ring forms a rotating track of the supporting ball;
the lower surface of the steel plate is provided with a steel plate groove corresponding to the annular concave steel ring, and the steel plate groove is matched with the annular concave steel ring to form a rotary upper track and a rotary lower track of the supporting ball respectively.
6. The large transformer steering device according to claim 5, wherein: the steel plate groove corresponds to the sphere center angle of the supporting ball and is a 1 The angle a of the annular concave steel ring corresponding to the center of the supporting ball 2 ＞1.05a 1 (ii) a The thickness H of steel plate is greater than or equal to 2r 1-cos (a) 1 /2)]Wherein r is the radius of the support sphere; the transport weight of the transformer is M newtons; pressure P bearable by support ball a ：
7. The large transformer steering device according to claim 1, wherein: a feed stopping arm is welded at one end of the turntable steel rail, and a temporary stop block is arranged at the other end of the turntable steel rail to limit a trolley loaded with a large transformer;
the advance-stopping arm is positioned at the front end of the trolley before the steering change of the large transformer, and the advance-stopping arm is just positioned at the rear end of the trolley after the annular turntable is steered so as to facilitate the trolley to enter the next steel rail.
8. Large transformer turning device according to claim 1 or 2, characterized in that: the center distance of the steel rails is L 1 (ii) a The length of the turntable steel rail on the annular turntable is L 1 The corresponding circumferential angle is 90 degrees; the inner radius of the annular turntable is
Ring rotorOuter radius of the disc R 4 ＝2R 1 。
9. The large transformer steering device according to claim 8, wherein: the radius of the supporting ball under the annular turntable is 0.45R ═ R 1 ；
The radius of the track of the inner ring of the supporting ball is R 2 ＝1.25R 1 The inner ring has 16 supporting balls;
the radius of the track of the outer ring of the supporting ball is R 3 ＝1.75R 1 And the outer ring has 22 supporting balls.
10. The large transformer steering device according to claim 1, wherein: length L of the transition rail 2 In the range of 0.1L 1 ～0.12L 1 Wherein L is 1 The center distance of the steel rails; the transition steel rail is used for adjusting gaps of 2-3 mm between the transition steel rail and the steel rail and between the transition steel rail and the turntable steel rail respectively.
11. A steering method of a large transformer is characterized in that: the steering method comprises the following steps:
s1, placing the large transformer on the trolley, and arranging the transition steel rail between the current steel rail of the large transformer and the turntable steel rail; a trolley for bearing the large transformer is transported to a turntable steel rail on the annular turntable along the steel rail, and a front side pulley of the trolley props against a stopping arm on the annular turntable;
s2, adopting a temporary stop block to prop against a rear pulley of the trolley;
s3, pulling out a positioning pin between the U-shaped ring on the foundation outside the annular turntable and the U-shaped ring of the annular turntable, and sleeving a traction rope of the mobile winch on the U-shaped ring of the annular turntable;
s4, starting the movable winch, slowly rotating the annular turntable by 90 degrees until the U-shaped ring of the annular turntable is aligned with the other U-shaped ring on the foundation outside the annular turntable, and then inserting the two U-shaped rings into the positioning pin to lock and fix the annular turntable;
and S5, transferring the transition steel rail to another steel rail, wherein the advance stopping arm on the annular turntable is just positioned at the rear end of the trolley, and the temporary stop block is removed, so that the large transformer can complete steering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210556600.0A CN114890109A (en) | 2022-05-20 | 2022-05-20 | Large transformer steering device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210556600.0A CN114890109A (en) | 2022-05-20 | 2022-05-20 | Large transformer steering device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114890109A true CN114890109A (en) | 2022-08-12 |
Family
ID=82724099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210556600.0A Pending CN114890109A (en) | 2022-05-20 | 2022-05-20 | Large transformer steering device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114890109A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8901360U1 (en) * | 1988-04-13 | 1989-06-08 | Miller, Franz Georg, 71229 Leonberg | Device for converting a rotary movement into a longitudinal movement and vice versa |
| EP1026343A1 (en) * | 1999-02-05 | 2000-08-09 | Antivols Simplex S.A. | Lock with a two part fixed lock body |
| CN202953466U (en) * | 2012-10-15 | 2013-05-29 | 郑州东方安彩耐火材料有限公司 | Steering device of ground rail vehicle |
| CN107195432A (en) * | 2017-06-21 | 2017-09-22 | 云南省送变电工程公司 | One kind general ± 500kV converter power transformers band oil rotates 180 ° of methods in place with annex |
| CN206782681U (en) * | 2017-05-24 | 2017-12-22 | 浙江天利厨房设备有限公司 | A kind of rotary type service plate recycling machine |
| CN207104798U (en) * | 2017-09-08 | 2018-03-16 | 黎昀菡 | Improve the erecting bed of model airplane packaging efficiency |
| CN108438788A (en) * | 2018-06-11 | 2018-08-24 | 衡阳市利美电瓶车制造有限责任公司 | Vertical airspace engine transition system |
| CN209200493U (en) * | 2018-11-30 | 2019-08-02 | 中国葛洲坝集团机电建设有限公司 | A kind of steering support device of transformer |
-
2022
- 2022-05-20 CN CN202210556600.0A patent/CN114890109A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8901360U1 (en) * | 1988-04-13 | 1989-06-08 | Miller, Franz Georg, 71229 Leonberg | Device for converting a rotary movement into a longitudinal movement and vice versa |
| EP1026343A1 (en) * | 1999-02-05 | 2000-08-09 | Antivols Simplex S.A. | Lock with a two part fixed lock body |
| CN202953466U (en) * | 2012-10-15 | 2013-05-29 | 郑州东方安彩耐火材料有限公司 | Steering device of ground rail vehicle |
| CN206782681U (en) * | 2017-05-24 | 2017-12-22 | 浙江天利厨房设备有限公司 | A kind of rotary type service plate recycling machine |
| CN107195432A (en) * | 2017-06-21 | 2017-09-22 | 云南省送变电工程公司 | One kind general ± 500kV converter power transformers band oil rotates 180 ° of methods in place with annex |
| CN207104798U (en) * | 2017-09-08 | 2018-03-16 | 黎昀菡 | Improve the erecting bed of model airplane packaging efficiency |
| CN108438788A (en) * | 2018-06-11 | 2018-08-24 | 衡阳市利美电瓶车制造有限责任公司 | Vertical airspace engine transition system |
| CN209200493U (en) * | 2018-11-30 | 2019-08-02 | 中国葛洲坝集团机电建设有限公司 | A kind of steering support device of transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210628906U (en) | Box-type substation is with device of turning | |
| CN110645004B (en) | Method for turning shield machine trolley in negative two layers of operated station | |
| CN114890109A (en) | Large transformer steering device and method | |
| CN213445286U (en) | Geothermal well pipe hoisting and transporting device | |
| CN113152166A (en) | Straddle type monorail track beam sliding erection tool | |
| CN110921506A (en) | Rotary lifting beam of coal mine transportation system | |
| CN205169654U (en) | A simply turn to device for pressure steel pipe transportation | |
| CN113605966B (en) | Automatic positioning device for direction-regulating rotary platform of mine transport vehicle | |
| CN116022691A (en) | Maintenance equipment | |
| CN110626733A (en) | Special device for transporting ultra-large-diameter pipeline in narrow space | |
| CN114104983B (en) | Steel pipe pile turns over and levelling device | |
| CN113605967B (en) | Car stopping device of direction-regulating rotary platform of mine transport vehicle | |
| CN210654961U (en) | Steel pipe transport vehicle | |
| CN209892201U (en) | Station-crossing device of shield machine host | |
| CN209795521U (en) | Steel pipe travelling bogie with lifting and steering device | |
| JP2922500B1 (en) | Conveyor truck for shield machine components | |
| CN207031936U (en) | A kind of bracket | |
| CN218564767U (en) | Pipeline heat-insulating layer wrapping line | |
| CN221233820U (en) | Handcart for preventing pipeline from being damaged by hoisting | |
| CN113123179A (en) | Vehicle turntable for coal mine rail transportation | |
| CN109183743B (en) | Rotary device and method for steel pipe passing through intersection in hole | |
| CN205347903U (en) | Rail is roller device for propelling movement | |
| CN215621959U (en) | Variable-track hydraulic electric transverse beam moving vehicle | |
| CN113700525B (en) | Direction-adjusting rotary platform of mining equipment | |
| CN216580490U (en) | Transport trolley device suitable for large-scale pressure steel pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |