CN211288291U - Ladle long nozzle manipulator - Google Patents
Ladle long nozzle manipulator Download PDFInfo
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- CN211288291U CN211288291U CN201921508319.XU CN201921508319U CN211288291U CN 211288291 U CN211288291 U CN 211288291U CN 201921508319 U CN201921508319 U CN 201921508319U CN 211288291 U CN211288291 U CN 211288291U
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- pressure oil
- ladle
- long nozzle
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- 238000004146 energy storage Methods 0.000 claims abstract description 15
- 238000002955 isolation Methods 0.000 claims abstract description 4
- 230000001502 supplementing effect Effects 0.000 claims description 21
- 239000003921 oil Substances 0.000 description 75
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000009749 continuous casting Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a ladle long nozzle manipulator, which is used for connecting a long nozzle with a ladle, and comprises an operating rod, a stand column and a hydraulic device, wherein the operating rod is hinged with the stand column, one end of the operating rod is provided with a hole seat for supporting the long nozzle, the hydraulic device comprises a rod cavity, a rod cavity pipeline, a rodless cavity pipeline and a first energy storage pipeline, one end of the rod cavity of the hydraulic device is hinged with the operating rod, and one end of the rodless cavity of the hydraulic device is hinged with the stand column; the first energy storage pipeline, the rod cavity pipeline and the rodless cavity pipeline are arranged on the pressure oil inlet pipeline and the pressure oil return pipeline in parallel; an isolation check valve is further arranged on the pressure oil inlet pipeline close to the oil inlet to prevent pressure oil from flowing back. The utility model discloses stable in structure is reliable to have energy storage mechanism, can last the use when the pressure oil source became invalid.
Description
Technical Field
The utility model relates to a metallurgical equipment technical field, it is specific, relate to a ladle long nozzle manipulator.
Background
In the casting process of a continuous casting machine of a modern iron and steel enterprise, in order to obtain a high-quality casting blank, molten steel needs to be cast in a whole process without oxidation protection. Wherein, the molten steel from the ladle to the intermediate tank is connected and protected by the ladle long nozzle, and the non-oxidation casting in the process is realized. The ladle long nozzle manipulator is driven by a lifting hydraulic cylinder to connect the ladle long nozzle to the ladle sliding nozzle and tightly press the ladle sliding nozzle with certain pressure. In the casting process, the ladle long nozzle is lifted along with the ladle, and the ladle long nozzle is always ensured to compress the ladle sliding nozzle. The lifting hydraulic cylinder of the ladle long nozzle manipulator is usually controlled by a manual valve, and the follow-up function of the ladle long nozzle and the ladle is realized by a three-way pressure reducing valve.
In practical application, the ladle long nozzle manipulator needs at least 2 operators for cooperative operation, so that the labor intensity is high, and the working efficiency is low. The three-way pressure reducing valve for providing control pressure for the lifting hydraulic cylinder has pressure regulating faults of valve clamping and the like due to the quality problems of oil products and elements. When the control pressure of the lifting hydraulic cylinder is too low, the steel overflow phenomenon often occurs at the joint of the ladle long nozzle and the ladle sliding nozzle, and open pouring caused by the falling of a ladle long nozzle manipulator is easy to occur. When the control pressure of the lifting hydraulic cylinder is too high, the ladle long nozzle is passively descended along with the ladle, so that the collapse of the ladle long nozzle and the plastic deformation, bending and breaking of the long nozzle manipulator operating rod are easily caused, and the continuous casting production is interrupted.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a solve above-mentioned technical problem and make, its purpose provides a long mouth of a river manipulator of ladle, improves the stability and the reliability of system, makes continuous casting production safe more smooth.
In order to achieve the above object, the utility model provides a ladle long nozzle manipulator for link together long nozzle and ladle, the manipulator comprises control rod, stand and hydraulic means, the control rod with the stand is articulated, the one end of control rod is provided with the hole seat and is used for bearing the long nozzle, hydraulic means includes the pole chamber, has pole chamber pipeline, no pole chamber pipeline and first energy storage pipeline, the one end of the pole chamber of hydraulic means is articulated with the control rod, the no pole chamber one end of hydraulic means is articulated with the stand; the first energy storage pipeline, the rod cavity pipeline and the rodless cavity pipeline are arranged on the pressure oil inlet pipeline and the pressure oil return pipeline in parallel; an isolation check valve is further arranged on the pressure oil inlet pipeline close to the oil inlet to prevent pressure oil from flowing back.
Furthermore, the pipeline with the rod cavity comprises an electromagnetic directional valve, a hydraulic control one-way valve, a first one-way throttle valve and a second one-way throttle valve which are sequentially arranged, wherein a port P of the electromagnetic directional valve is connected with a pressure oil inlet pipeline, a port T of the electromagnetic directional valve is connected with a pressure oil return pipeline, a port B of the electromagnetic directional valve is connected with a control oil port of the hydraulic control one-way valve, and a port A of the electromagnetic directional valve is connected with the hydraulic control one-way valve and is connected with the rod cavity through the first one-way throttle valve and the second one-way throttle valve.
Further, an oil supplementing branch is also arranged in the rod cavity pipeline and comprises an oil supplementing one-way valve and a tubular one-way throttle valve which are arranged in series; one end of the oil supplementing one-way valve is communicated with one end, close to the rod cavity, of the second one-way throttle valve and is finally connected into the rod cavity, and the other end of the oil supplementing one-way valve is communicated with a T port of the electromagnetic directional valve and one end of the tubular one-way throttle valve; one end of the tubular one-way throttle valve is communicated with the pressure oil return pipeline, and the other end of the tubular one-way throttle valve is communicated with the T port of the electromagnetic directional valve and the oil supplementing one-way valve.
Furthermore, a first overflow valve is connected in parallel to two ends of the oil supplementing one-way valve.
Further, the rodless cavity line includes: the second energy accumulator, the electromagnetic ball valve and the pressure relay; one ends of the second energy accumulator, the electromagnetic ball valve and the pressure relay are mutually communicated and are connected into the rodless cavity and the pressure oil return pipeline; and the other end of the electromagnetic ball valve is communicated with the pressure oil inlet pipeline.
Furthermore, a third ball valve is arranged between the second energy accumulator, the electromagnetic ball valve and the pressure relay and the pressure oil return pipeline, and second overflow valves are arranged at two ends of the third ball valve in parallel.
Furthermore, a throttling hole is further formed between the electromagnetic ball valve and the second energy accumulator.
Furthermore, the end part of the first energy accumulator is connected with a first ball valve and a second ball valve which are arranged in parallel, the first energy accumulator is communicated with the pressure oil inlet pipeline through the first ball valve, and the first energy accumulator is communicated with the pressure oil return pipeline through the second ball valve; and third overflow valves are arranged at two ends of the second ball valve in parallel.
Furthermore, one end of the operating rod is provided with a handle and an operating button.
According to the above description and practice, ladle long nozzle manipulator, hydraulic means in the manipulator has improved, through keeping apart check valve and parallelly connected pole chamber pipeline, no pole chamber pipeline and the first energy storage pipeline that sets up for this hydraulic means can provide the accident pressure oil source for the operation of long nozzle manipulator when hydraulic system pressure oil source became invalid, guarantees going on of continuous casting work continuation safety.
In addition, the oil supplementing branch is additionally arranged in the rod cavity pipeline, so that when the pressure in the rod cavity pipeline is reduced or the manipulator descends passively, pressure oil can be supplemented into the rod cavity pipeline in time, and the manipulator can descend under the condition of active control. Thereby avoiding the phenomenon of steel overflow at the joint of the ladle long nozzle and the ladle sliding nozzle; meanwhile, the phenomena of crushing of the ladle long nozzle and the phenomena of plastic deformation, bending, breaking and the like of the operating rod of the long nozzle manipulator can be avoided when the manipulator descends passively.
The second energy accumulator in the rodless cavity pipeline can also play the role of the oil supplementing branch, and when the pressure in the rodless cavity pipeline is reduced or the manipulator is passively lowered, the second energy accumulator can release the pressure to improve the pressure in the rodless cavity pipeline, so that the hydraulic device can be actively controlled, and the phenomenon is avoided.
Drawings
Fig. 1 is a schematic view showing a structure of a ladle long nozzle manipulator according to an embodiment of the present invention.
In the figure:
1. the device comprises a long water gap, 2, a hydraulic device, 3, an operating rod, 4, a stand column, 5, a pressure oil inlet pipeline, 6, a pressure oil return pipeline, 7, an isolation one-way valve, 8, a pressure measuring joint, 9 and a pressure gauge;
21. a rod cavity, 22 a rodless cavity, 23 a rod cavity pipeline, 24 a rodless cavity pipeline, 25 a first energy accumulator pipeline;
231. the hydraulic control system comprises an electromagnetic directional valve 232, a hydraulic control one-way valve 233, a first one-way throttle valve 234, a second one-way throttle valve 235, an oil supplementing one-way valve 236, a tubular one-way throttle valve 237 and a first overflow valve;
241. a second accumulator, 242, a solenoid ball valve, 243, a pressure relay, 244, a third ball valve, 245, a second overflow valve, 246, an orifice;
251. the first accumulator 252, the first ball valve 253, the second ball valve 254 and the third overflow valve;
51. an oil inlet; 61. and an oil return port.
Detailed Description
The embodiment of the ladle long nozzle manipulator according to the present invention will be described with reference to the accompanying drawings. Those of ordinary skill in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Furthermore, in the present description, the drawings are not to scale and like reference numerals refer to like parts.
Fig. 1 is a schematic view showing a structure of a ladle long nozzle manipulator according to an embodiment of the present invention.
Referring to fig. 1, the ladle shroud manipulator in this embodiment is used for connecting a shroud to a ladle, and is composed of an operating rod 3, a column 4, and a hydraulic device 2. Wherein the control rod 3 is hinged with the upright post 4, one end of the control rod 3 is provided with a hole seat for supporting the long nozzle 1, the other end is provided with a handle 31 and an operating button 32, and the operating button 32 is an embedded button and is arranged on one side of the handle 31. The hydraulic device 2 comprises a rod cavity 21, a rod cavity pipeline 23, a rodless cavity 22, a rodless cavity pipeline 24 and a first energy storage pipeline 25, wherein one end of the rod cavity 21 of the hydraulic device 2 is hinged with the operating rod 3, and one end of the rodless cavity 22 of the hydraulic device 2 is hinged with the upright post 4.
Specifically, the first energy storage pipeline 25, the rod cavity pipeline 23 and the rodless cavity pipeline 24 are sequentially arranged in parallel on the pressure oil inlet pipeline 5 and the pressure oil return pipeline 6 to form a loop system. Wherein the first energy storage pipeline 25 is close to one end of the oil inlet 51 of the pressure oil inlet pipeline 5.
An isolating one-way valve 7 is further arranged on the pressure oil inlet pipeline 5 close to the oil inlet 51 to prevent pressure oil from flowing back. When the pressure oil source of the hydraulic system fails, the first energy storage pipeline 25 and the isolating one-way valve 7 act together to provide a temporary accident pressure oil source for the hydraulic system. When one of the three pipelines is in fault, the operation of the other two pipelines is not influenced, so that the manipulator can controllably stop working; and meanwhile, the maintenance and management of the hydraulic device are facilitated.
Specifically, in this embodiment, the rod chamber pipeline 23 includes an electromagnetic directional valve 232, a pilot operated check valve 232, a first check throttle valve 233, and a second check throttle valve 234, which are sequentially disposed, wherein a port P of the electromagnetic directional valve is connected to a pressure oil inlet pipeline 5, a port T of the electromagnetic directional valve 232 is connected to a pressure oil return pipeline 6, a port B of the electromagnetic directional valve is connected to a control oil port of the pilot operated check valve 232, and a port a of the electromagnetic directional valve is connected to the pilot operated check valve 232 and is sequentially connected to the rod chamber 21 through the first check throttle valve 233 and the second check throttle valve 234. The expansion and contraction of the hydraulic device 2 is controlled by controlling the supply amount of the pressure oil by the electromagnetic directional valve 232; the first one-way throttle valve 233 adjusts the extension speed of the hydraulic device 2 by adjusting the flow rate of the pressure oil, thereby controlling the rising speed of the manipulator; the second check throttle valve 234 adjusts the contraction speed of the hydraulic device 2 by adjusting the flow rate of the pressure oil, thereby controlling the lowering speed of the robot. A common ball valve is also arranged between the electromagnetic directional valve 231 and the pressure oil inlet pipeline 5, and the switch of the pipeline at the position can be manually controlled, and the model of the common ball valve is YJZQ-J15N-G1/2.
In addition, an oil supplementing branch is further disposed in the rod cavity pipeline 23, and the oil supplementing branch comprises an oil supplementing check valve 235 and a tubular check throttle valve 236 which are disposed in series. One end of the oil-replenishing check valve 235 is communicated with one end of the second check throttle valve 234 close to the rod chamber 21, and the two are connected and finally connected into the rod chamber 21; the other end of the oil replenishment check valve 235 is communicated with the T port of the electromagnetic directional valve 231 and one end of the pipe type check throttle valve 236. One end of the pipe-type check throttle valve 236 is connected to the pressure oil return line 6, and the other end is connected to the T port of the electromagnetic directional valve 231 and the oil-replenishing check valve 235. The oil-replenishing check valve 235 can control the flow of the pressurized oil from only one end of the pipe check throttle valve 236 to the end of the rod chamber 21. When the manipulator descends passively under the action of the ladle, the hydraulic device 2 is driven to contract passively, pressure oil can be supplemented to the rod cavity 21 of the hydraulic device 2 through the oil supplementing branch, the pressure in the rod cavity 21 is increased, and therefore the passive descending of the manipulator is stopped, and the descending is converted into descending actively controlled by the electromagnetic directional valve 231.
In addition, a first overflow valve 237 is connected in parallel to two ends of the oil-replenishing check valve 235, and when the oil pressure in the rod cavity pipeline 23 is too high during the operation of the hydraulic device 2, the first overflow valve 237 overflows a part of pressure oil to reduce the pressure in the pipeline, thereby playing a role of overload protection.
Specifically, in this embodiment, the rodless cavity line 24 includes: a second accumulator 241, an electromagnetic ball valve 242 and a pressure relay 243. Here, one ends of the second accumulator 241, the electromagnetic ball valve 242, and the pressure relay 243 are communicated with each other and are connected to the rodless chamber 22 and the pressure oil return line 6. The other end of the electromagnetic ball valve 242 is connected to the pressure oil inlet line 5. An orifice 246 is further provided between the solenoid ball valve 242 and the second accumulator 241 to control the oil replenishment rate. A pressure gauge 9 is further arranged in the loop and can display the pressure in the loop in real time.
A third ball valve 244 is provided between the pressure oil return line 6 and each of the second accumulator 241, the electromagnetic ball valve 242, and the pressure relay 243, and a second relief valve 245 is provided in parallel at both ends of the third ball valve. The third ball valve 244 can control whether the rodless chamber line 24 is communicated with the pressure oil return line 6. When the hydraulic device 2 is in operation and the oil pressure in the rodless cavity pipeline 24 is too high, the second overflow valve 245 can overflow part of pressure oil to reduce the pressure in the pipeline, so that the overload protection effect is achieved.
The pressurized oil in the rodless chamber 22 and the rodless chamber line 24 is enclosed in a sealed volume under the control of the solenoid ball valve 242 and the third ball valve 244. At this time, if the pressure of the hydraulic oil increases during the operation of the hydraulic device 2, the increased pressure is transmitted to the second accumulator 241 and absorbed by the second accumulator. After the second accumulator 241 is pressurized, a pressure oil source is not required to be connected during operation. The second accumulator 241 releases the pressure energy to provide the power required when the robot is raised. When the manipulator descends in an electric control mode, the pressure energy of the rod cavity 21 and the potential energy of the manipulator descending are partially converted into pressure energy in the rodless cavity loop 24 and are recovered and stored by the second energy accumulator 19; when the manipulator passively descends along with the ladle, the potential energy of the ladle descending is recovered and stored by the second accumulator 19.
Specifically, in this embodiment, a first ball valve 252 and a second ball valve 253, which are arranged in parallel, are connected to the end of the first accumulator 251. The first accumulator 251 is connected to the pressure oil inlet line 5 through a first ball valve 152, and the first accumulator 251 is connected to the pressure oil return line 6 through a second ball valve 253. A third relief valve 254 is connected in parallel to both ends of the second ball valve 252. When the hydraulic device 2 is in operation and the oil pressure in the first energy storage pipeline 25 is too high, the third overflow valve 254 will overflow part of the pressure oil to reduce the pressure in the pipeline, so as to perform the function of overload protection.
Furthermore, pressure taps 8 are provided in each case on the first energy storage line 25, the rod chamber line 23 and the rodless chamber line 24 for measuring the pressure in the circuit.
The specific model of the above-mentioned isolating check valve 7 in this embodiment is S15A1.0; the specific model of the first energy accumulator 251 is Zhejiang vonization NXQ-A-40/31.5-L; the specific model of the electromagnetic directional valve 231 is 4WE6J61B/CG24N9Z 5L; the specific model of the pilot operated check valve 232 is Z2S 6-1-60B; the specific model of the first one-way throttle valve 233 is DRVP 8-1-10B; the specific model of the second one-way throttle valve 234 is DRVP 8-1-10B; the specific model of the oil-supplementing one-way valve 235 is M-SR10KE 05-10B; the specific model of the pipe type one-way throttle valve 236 is MK6G1.2B; the specific models of the first relief valve 237, the second relief valve 245 and the third relief valve 254 are DBDS6K 10B/315; the specific model of the electromagnetic ball valve 242 is AS22061 a-G24; orifice 246 is a fixed orifice and has a specification of φ 2; the pressure gauge 9 is a shock-proof pressure gauge with specific model number of HM63-250-B-M14 × 1.5-FF; the specific model of the second accumulator 241 is NXQA-L6.3/31.5-Y; the specific model of the pressure relay 243 is EDS 346-2-250; the specific model of the pressure measuring joint 8 is 2103.01.18.00 HD; the model of the first ball valve 252 is YJZQ-J15N-G1/2; the second ball valve 253H and the third ball valve 244 are each of the JZFS-J10B type.
The ladle long nozzle manipulator of this embodiment reforms transform hydraulic means, through keeping apart check valve and parallelly connected rod chamber pipeline, no rod chamber pipeline and the first energy storage pipeline that sets up for this hydraulic means can provide the accident pressure oil source for the operation of long nozzle manipulator when hydraulic system pressure oil source became invalid, guarantees that continuous casting work lasts safe going on.
In addition, the oil supplementing branch is additionally arranged in the rod cavity pipeline, so that when the pressure in the rod cavity pipeline is reduced or the manipulator descends passively, pressure oil can be supplemented into the rod cavity pipeline in time, and the manipulator can descend under the condition of active control. Thereby avoiding the phenomenon of steel overflow at the joint of the ladle long nozzle and the ladle sliding nozzle; meanwhile, the phenomena of crushing of the ladle long nozzle and the phenomena of plastic deformation, bending, breaking and the like of the operating rod of the long nozzle manipulator can be avoided when the manipulator descends passively.
The second energy accumulator in the rodless cavity pipeline can also play the role of the oil supplementing branch, and when the pressure in the rodless cavity pipeline is reduced or the manipulator is passively lowered, the second energy accumulator can release the pressure to improve the pressure in the rodless cavity pipeline, so that the hydraulic device can be actively controlled, and the phenomenon is avoided.
A ladle shroud manipulator according to the present invention has been described above by way of example with reference to the accompanying drawings. However, it should be understood by those skilled in the art that various modifications may be made to the ladle long nozzle manipulator provided by the present invention without departing from the scope of the present invention. Therefore, the scope of the present invention should be determined by the content of the appended claims.
Claims (8)
1. A manipulator for a long nozzle of a ladle is used for connecting the long nozzle with the ladle, and the manipulator consists of an operating rod, a vertical column and a hydraulic device and is characterized in that,
the operating rod is hinged with the upright column, a hole seat is arranged at one end of the operating rod and used for supporting the long nozzle, the hydraulic device comprises a rod cavity, a rod cavity pipeline, a rodless cavity pipeline and a first energy storage pipeline, one end of the rod cavity of the hydraulic device is hinged with the operating rod, and one end of the rodless cavity of the hydraulic device is hinged with the upright column;
the first energy storage pipeline, the rod cavity pipeline and the rodless cavity pipeline are arranged on the pressure oil inlet pipeline and the pressure oil return pipeline in parallel;
an isolation check valve is further arranged on the pressure oil inlet pipeline close to the oil inlet to prevent pressure oil from flowing back.
2. The ladle long nozzle manipulator of claim 1, wherein the rod cavity pipeline comprises an electromagnetic directional valve, a hydraulic control one-way valve, a first one-way throttle valve and a second one-way throttle valve which are arranged in sequence, wherein a port P of the electromagnetic directional valve is connected with a pressure oil inlet pipeline, a port T of the electromagnetic directional valve is connected with a pressure oil return pipeline, a port B of the electromagnetic directional valve is connected with a control oil port of the hydraulic control one-way valve, and a port A of the electromagnetic directional valve is connected with the hydraulic control one-way valve and is connected with the rod cavity through the first one-way throttle valve and the second one-way throttle valve.
3. The ladle long nozzle manipulator according to claim 2, wherein an oil supplementing branch is further arranged in the rod cavity pipeline, and the oil supplementing branch comprises an oil supplementing one-way valve and a tubular one-way throttle valve which are arranged in series; one end of the oil supplementing one-way valve is communicated with one end, close to the rod cavity, of the second one-way throttle valve and is finally connected into the rod cavity, and the other end of the oil supplementing one-way valve is communicated with a T port of the electromagnetic directional valve and one end of the tubular one-way throttle valve; one end of the tubular one-way throttle valve is communicated with the pressure oil return pipeline, and the other end of the tubular one-way throttle valve is communicated with the T port of the electromagnetic directional valve and the oil supplementing one-way valve.
4. The ladle long nozzle manipulator according to claim 3, wherein a first overflow valve is connected in parallel to both ends of the oil-replenishing check valve.
5. The ladle shroud manipulator of claim 1, wherein said rodless cavity conduit comprises: the second energy accumulator, the electromagnetic ball valve and the pressure relay; one ends of the second energy accumulator, the electromagnetic ball valve and the pressure relay are mutually communicated and are connected into the rodless cavity and the pressure oil return pipeline; and the other end of the electromagnetic ball valve is communicated with the pressure oil inlet pipeline.
6. The ladle long nozzle manipulator according to claim 5, wherein a third ball valve is further arranged between the second energy accumulator, the electromagnetic ball valve and the pressure relay and the pressure oil return pipeline, and second overflow valves are arranged at two ends of the third ball valve in parallel.
7. The ladle shroud manipulator of claim 5, wherein an orifice is further provided between said electromagnetic ball valve and said second accumulator.
8. The ladle shroud manipulator of any one of claims 1 to 7, wherein one end of the operating lever is provided with a handle and an operating button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921508319.XU CN211288291U (en) | 2019-09-10 | 2019-09-10 | Ladle long nozzle manipulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921508319.XU CN211288291U (en) | 2019-09-10 | 2019-09-10 | Ladle long nozzle manipulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211288291U true CN211288291U (en) | 2020-08-18 |
Family
ID=72012726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921508319.XU Active CN211288291U (en) | 2019-09-10 | 2019-09-10 | Ladle long nozzle manipulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211288291U (en) |
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2019
- 2019-09-10 CN CN201921508319.XU patent/CN211288291U/en active Active
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