CN114683178B - Automatic nozzle replacement device for abrasive water jet system - Google Patents
Automatic nozzle replacement device for abrasive water jet system Download PDFInfo
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- CN114683178B CN114683178B CN202210277530.5A CN202210277530A CN114683178B CN 114683178 B CN114683178 B CN 114683178B CN 202210277530 A CN202210277530 A CN 202210277530A CN 114683178 B CN114683178 B CN 114683178B
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- water jet
- abrasive water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000009434 installation Methods 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims description 37
- 230000005540 biological transmission Effects 0.000 claims description 31
- 238000004891 communication Methods 0.000 claims description 30
- 239000011435 rock Substances 0.000 claims description 16
- 238000005520 cutting process Methods 0.000 abstract description 19
- 238000007789 sealing Methods 0.000 abstract description 4
- 230000007704 transition Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
- B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
- B24C3/04—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other stationary
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
- B24C5/04—Nozzles therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention relates to an automatic nozzle replacing device for an abrasive water jet system, which comprises a nozzle fixing pipeline and a nozzle, wherein the nozzle is connected with a nozzle communicating pipeline, the nozzle communicating pipeline is provided with a first external thread and a second external thread which are gradually close to the nozzle, the first external thread is matched with the internal thread of the nozzle fixing pipeline, one side of the nozzle fixing pipeline is provided with a nozzle switching device, the nozzle switching device is connected with a plurality of nozzle arranging components, the nozzle communicating pipeline is arranged on the nozzle arranging components, the nozzle switching device can move the nozzle communicating pipeline provided with a selected nozzle to a pre-installation position below the nozzle fixing pipeline, and the other side of the nozzle fixing pipeline is provided with a driving part. Compared with the prior art, the invention improves the sealing performance of the nozzle, reduces manual operation, and improves the safety and cutting efficiency of abrasive water jet cutting.
Description
Technical Field
The invention relates to the technical field of jet cutting, in particular to an abrasive water jet cutting technology.
Background
Abrasive water jet technology is a cold cutting technology, and is a method for cutting by utilizing high-pressure water to accelerate abrasive particles to impact the surface of a workpiece. Since the 70 s of the 20 th century, the cutting machine has the unique cutting advantages of high efficiency, no pollution, no thermal deformation, smooth section and the like, and is widely applied to the processing of metal materials in industries such as gold treatment, machinery, shipbuilding, construction, military industry and the like. With the continuous improvement of abrasive water jet cutting technology, the application range of the abrasive water jet cutting technology is expanded, so that the cutting of rock mass by abrasive water jet is possible in an outdoor working environment.
At present, in the abrasive water jet cutting field, the replacement is generally carried out in a manual mode, so that the labor intensity of workers is improved, and meanwhile, the dangerous degree of the workers is increased. Furthermore, in the fields of automatic nozzle replacement mainly focused on laser processing machines, 3D printers and the like, as proposed in the prior art, an automatic nozzle replacement assembly of a laser cutting machine comprises a workbench and a cutting head, wherein a replaceable nozzle is arranged at the bottom of the cutting head, the automatic nozzle replacement assembly is arranged on the workbench and below the cutting head, and comprises a motor, a mounting seat, a bracket, a transmission mechanism and at least two groups of nozzle receiving members; the bracket is fixedly connected above the mounting seat through at least two upright posts, and a plurality of through holes are uniformly distributed on the same circumference of the top surface; the transmission mechanism comprises a driving gear and a plurality of driven gears; the nozzle receiving member is movably connected in the through hole, and the lower part of the nozzle receiving member penetrates through the through hole; the driven gear is fixedly connected to the lower part of the nozzle receiving member; the driving gear is fixedly connected with an output shaft of the motor and coaxial with the bracket, and is meshed with each driven gear respectively; the nozzle receiving component comprises a nozzle bin for accommodating a nozzle, a transition shaft, a buffer spring and a limit bolt which is also used as a guide shaft; the middle part of the transition shaft is movably connected in the through hole of the bracket, and the lower part of the transition shaft is fixedly connected with the driven gear, so that the nozzle receiving component is movably connected in the through hole of the bracket through the transition shaft; the nozzle bin comprises an upper nozzle accommodating groove and a lower buffer groove; the notch of the buffer groove faces downwards and is sleeved at the top of the transition shaft through a synchronous rotating mechanism; the bottom of the nozzle accommodating groove is provided with a middle hole, and the limit bolt is penetrated in the middle hole and fixedly connected to the top of the transition shaft; the buffer spring is arranged between the bottom of the buffer groove and the top surface of the transition shaft and sleeved with the limit bolt; the middle part of the transition shaft is also provided with a side protrusion which is arranged above the bracket.
When the nozzle is replaced, if the nozzle receiving member is inserted into the corresponding through hole, the sealing performance of the nozzle is poor and the abrasive water leakage accident is easy to occur if the prior art is transported and installed to the abrasive water jet system without creative labor, so that the abrasive water jet cutting operation is not facilitated.
Disclosure of Invention
The invention aims to provide an automatic nozzle replacing device for an abrasive water jet system, which is used for solving the problems that the sealing performance of a nozzle is poor, the labor intensity of workers is improved and the dangers of the workers are increased in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides an automatic change device of nozzle for abrasive water jet system, includes nozzle fixed pipeline and nozzle, the nozzle is connected with nozzle intercommunication pipeline, nozzle intercommunication pipeline has and is close to gradually first external screw thread and the second external screw thread of nozzle, first external screw thread and nozzle fixed pipeline's internal thread looks adaptation, one side of nozzle fixed pipeline is equipped with nozzle auto-change over device, nozzle auto-change over device is connected with a plurality of nozzle arrangement components, nozzle intercommunication pipeline passes through the mode that second external screw thread cooperatees with nozzle arrangement component installs on the nozzle arrangement component, nozzle auto-change over device can be with install the nozzle intercommunication pipeline of selected nozzle removes to the pre-installation position of nozzle fixed pipeline below, the opposite side of nozzle fixed pipeline is equipped with drive part, drive part can drive the nozzle intercommunication pipeline that is located the pre-installation position and forward rotate, and then make first external screw thread and nozzle fixed pipeline's internal thread realize being connected, drive part can drive with nozzle connecting pipe that nozzle fixed pipe screw thread is connected, and then make first external screw thread and the internal thread are connected with nozzle fixed pipeline.
According to the above technical means, the connection mode of nozzle communication pipeline and nozzle fixed pipeline is threaded connection, compares in prior art's grafting mode, can guarantee the leakproofness of nozzle, reduces fluidic seepage, and the setting of nozzle arrangement component and drive part all guarantees that nozzle communication pipeline and nozzle fixed pipeline can threaded connection and set up dismantlement and auto-change over device, and is specific: when the nozzle is disassembled, the driving part enables the nozzle communication pipeline to reversely rotate, the length of the first external thread matched with the internal thread of the nozzle fixing pipeline is gradually reduced, the nozzle communication pipeline continuously descends, and the first external thread is gradually disconnected with the nozzle fixing pipeline; when the nozzle is installed, the driving part enables the nozzle communication pipeline to rotate positively, the length of the first external thread matched with the internal thread of the nozzle fixing pipeline is gradually increased, the nozzle communication pipeline is continuously increased and is gradually installed on the nozzle fixing pipeline, so that the device does not need manual assistance on the premise of ensuring threaded connection of the nozzle communication pipeline and the nozzle fixing pipeline, automatic disassembly and installation of the nozzle can be realized, labor cost is saved, and the danger of labor of workers is reduced.
Further, in the axial direction of the nozzle communication pipe, the length of the first external thread is smaller than the length of the second external thread.
According to the technical means, when the first external thread is completely matched with the internal thread of the nozzle fixing pipeline and is completely disconnected, the nozzle communicating pipeline can still be arranged on the nozzle arranging component, and the stability of the nozzle during operation is ensured.
Further, a first gear is fixed on the nozzle communicating pipe, the first external thread and the second external thread are arranged at intervals, the first gear is located between the first external thread and the second external thread, the driving part comprises a second gear, the second gear can be meshed with the first gear, or meshed with the first gear through a gear transmission mechanism, and the second gear can rotate.
Further, the second gear is rotatably arranged in the supporting seat, the second gear is fixed on the rotating shaft, the rotating shaft penetrates through the supporting seat, a screw is arranged on one side of the rotating shaft, the supporting seat is connected with the screw through a nut, and the screw and the rotating shaft are connected with a belt of the belt transmission mechanism, so that the belt transmission mechanism can drive the screw and the rotating shaft to rotate simultaneously.
Further, the nozzle arrangement member comprises a connecting shaft, one end of the connecting shaft is connected with a mounting bushing, the other end of the connecting shaft is connected with a rotating seat, the nozzle communication pipeline is fixed on the mounting bushing, and the top of the rotating seat is connected with a rotating shaft of the motor.
Further, the rotating seat is constructed as a sphere, and all the connection positions of the connecting shafts and the rotating seat are uniformly distributed along the circumferential direction of a certain radial section of the rotating seat.
Further, the automatic nozzle replacement device for the abrasive water jet system comprises a first sound wave detector, wherein the first sound wave detector is used for detecting the loss of a nozzle connected with the nozzle fixing pipeline, when the loss of the nozzle is greater than or equal to a loss threshold value, the belt transmission mechanism and the motor are started, so that the loss of the nozzle after replacement is smaller than the loss threshold value, otherwise, the belt transmission mechanism and the motor are not started.
Further, the automatic nozzle replacing device for the abrasive water jet system comprises a second sound wave detector for detecting the type of rock to be cut, when the type of rock corresponds to the nozzle connected with the nozzle fixing pipeline, the belt transmission mechanism and the motor are not started, and when the type of rock does not correspond to the nozzle connected with the nozzle fixing pipeline, the belt transmission mechanism and the motor are started, so that the replaced nozzle corresponds to the type of rock.
Further, the angle of rotation of the motor is N times of the included angle between the adjacent connecting shafts, and N is a natural number greater than or equal to 1.
Further, the length of the internal thread of the mounting bushing, the length of the first external thread and the length of the internal thread of the nozzle fixing pipeline are equal.
The invention has the beneficial effects that:
compared with the prior art, the invention ensures that the nozzle communication pipeline and the nozzle fixing pipeline can be in threaded connection, improves the sealing performance of the nozzle, can acquire the information of the nozzle and the rock mass in front through the acoustic wave detector, can be compared with a database of the device, judges whether the nozzle needs to be replaced or not, and automatically selects the optimal nozzle when the replacement is selected; in addition, the device reduces manual operation, improves the safety and cutting efficiency of abrasive water jet cutting, and reduces the danger and labor intensity of workers.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the nozzle communication line in combination with the nozzle securing line and mounting bushing;
fig. 3 is a schematic diagram of a manner in which the second gear drives the first gear to rotate.
Wherein, the pipeline is fixed by a 1-nozzle; 2-supporting frames; 3-a nozzle communication pipeline; 4-nozzles; 5-a rotating seat; 6-a motor; 7-a power shaft; 8-a nozzle arrangement member; 81-connecting shafts; 82-mounting a bushing; 9-a supporting seat; 10-rotating shaft; 11-screw; 12-a first acoustic wave detector; 13-a second acoustic detector; 14-a control cabinet; 15-a belt drive mechanism; 16-rock; 17-nut; 18-first external threads; 19-second external threads; 20-a first gear; 21-internal threads of the nozzle fixing line; 22-internal threads of the mounting bushing; 23-a second gear; 24-connecting rod; 25-gear drive.
Detailed Description
Further advantages and effects of the present invention will become readily apparent to those skilled in the art from the disclosure herein, by referring to the following description of the embodiments of the present invention with reference to the accompanying drawings and preferred examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
The present embodiment proposes an automatic nozzle replacement device for an abrasive water jet system, as shown in fig. 1 to 3, including a support frame 2, a nozzle fixing pipeline 1 passing through the support frame 2 and not contacting with the support frame 2, the nozzle fixing pipeline 1 being used for connecting with a nozzle 4, and abrasive water jet flowing through the nozzle fixing pipeline 1 to the nozzle 4 and being ejected from the nozzle 4.
The nozzle 4 is provided with a nozzle communication pipeline 3, the nozzle communication pipeline 3 is sequentially provided with a first external thread 18 and a second external thread 19 along the direction close to the nozzle 4, the second external thread 19 is matched with an internal thread 21 of a nozzle fixing pipeline, and the nozzle 4 can be arranged on the nozzle fixing pipeline 1 in a threaded matching manner.
One side of the nozzle fixing pipeline 1 is provided with a nozzle switching device, the nozzle switching device is connected with a plurality of nozzle arrangement members 8, the nozzle switching device comprises a motor 6, the motor 6 is connected with the top end of a rotating seat 5 through a power shaft 7, the motor 6 can drive the rotating seat 5 to rotate, the rotating seat 5 is in a spherical structure, and in the embodiment, the nozzle arrangement members 8 are arranged on the rotating seat 5.
The nozzle setting member 8 includes a connection shaft 81, one end of the connection shaft 81 is connected with the swivel seat 5, the other end is connected with a mounting bush 82, the mounting bush 82 is provided with internal threads, the internal threads 22 of the mounting bush are matched with the second external threads 19, and the nozzle communication pipeline 3 is mounted on the mounting bush 82 through the second external threads 19 and the internal threads 22 of the mounting bush.
In this embodiment, all the connecting shafts 81 and the rotating seat 5 are uniformly arranged along the circumferential direction of a radial section of the rotating seat 5, and when the motor 6 rotates, a suitable nozzle 4 can be switched to a position right below the nozzle fixing pipeline 1, so that the rotation angle of the motor 6 can be controlled conveniently, the rotation angle of the motor 6 is N times of the included angle of two adjacent connecting shafts 81, and N is a natural number greater than or equal to 1. In the present embodiment, when the motor 6 switches the appropriate nozzle 4 to directly below the nozzle fixing line 1, the axis of the nozzle communication line 3 coincides with the axis of the nozzle fixing line 1.
In this embodiment, a driving component is disposed on the other side of the nozzle fixing pipeline 1, when the nozzle fixing pipeline 1 is not connected with the nozzle communicating pipeline 3, and the nozzle switching device switches the suitable nozzle 4 to the pre-installation position below the nozzle fixing pipeline 1, the nozzle communicating pipeline 3 is located right below the nozzle fixing pipeline 1, and the distance between the two is suitable, so that when the driving component drives the nozzle communicating pipeline 3 to rotate forward, the length of the first external thread 18 matched with the internal thread 21 of the nozzle fixing pipeline is gradually increased, and the nozzle 4 is driven to move upwards until the first external thread 18 is completely matched with the internal thread 21 of the nozzle fixing pipeline, so that the nozzle 4 is installed on the nozzle fixing pipeline 1.
When the nozzle communication pipe 3 is detached from the nozzle fixing pipe 1, the driving part can drive the nozzle communication pipe 3 to reversely rotate, and at this time, the length of the first external thread 18 matched with the internal thread 21 of the nozzle fixing pipe gradually decreases until the nozzle communication pipe 3 is disconnected from the nozzle fixing pipe 1.
In this embodiment, the lengths of the first external thread 18, the internal thread 21 of the nozzle fixing pipeline and the internal thread 22 of the mounting bushing are equal, L are both smaller than the length of the second external thread 19, and the length of the second external thread 19 is 2L, so that when the first external thread 18 is completely matched with the internal thread 21 of the nozzle fixing pipeline, the mounting bushing 82 and the nozzle communication pipeline 3 still maintain the threaded connection relationship, which is equivalent to applying two constraints on the nozzle communication pipeline 3, and further, the stability of the nozzle 4 during operation is increased.
The driving part can be a belt transmission mechanism, a belt of the belt transmission mechanism is connected with a first wheel part fixed on the motor, a speed reducer is arranged between an output shaft of the motor and the first wheel part, a second wheel part is arranged on the nozzle communication pipeline 3, and the belt is in a closed state and is connected with the first wheel part and the second wheel part.
The driving part can also be an air cylinder, the telescopic shaft of the air cylinder is connected with the nozzle communication pipeline 3 through a crank connecting rod mechanism, and the crank connecting rod mechanism converts the linear motion of the telescopic shaft of the air cylinder into the rotation of the nozzle communication pipeline 3.
In this embodiment, the driving component includes a second gear 23, the second gear 23 is installed in the support seat 9, the second gear 23 is sleeved and fixed on the rotating shaft 10, the rotating shaft 10 passes through the support seat 9, the support seat 9 is connected with the nut 17, the nut 17 is in threaded connection with the screw 11, the supporting frame 2 is provided with the belt transmission mechanism 15, the belt of the belt transmission mechanism 15 is in a closed state, and the belt transmission mechanism is connected with the screw 11, the rotating shaft 11 and the rotating wheel at the top of the machine output shaft, when the motor rotates, the driving screw 11 and the rotating shaft 10 rotate, so that the second gear 23 can reciprocate in the vertical direction of the screw 11 while rotating.
The first gear 20 is arranged on each nozzle communication pipeline 3, the first gear 20 is sleeved and fixed on the nozzle communication pipeline 3, the first gear 20 is positioned on the interval between the first external thread 18 and the second external thread 19, the gear transmission mechanism 25 is also fixed on the supporting seat 9, the gear combination of the gear transmission mechanism 25 is rotatably fixed on the connecting rod 24, the second gear 23 is meshed with one gear of the gear transmission mechanism 25, and when the second gear 23 moves to a position flush with the first gear 20, one gear of the gear transmission mechanism 25 is meshed with the first gear 20, so that the second gear 23 can drive the first gear 20 to rotate through the gear transmission mechanism 25, and then the nozzle communication pipeline 3 can be driven to rotate.
In this embodiment, the support frame 2 is further provided with a first acoustic wave detector 12 and a second acoustic wave detector 13, and both of them and a motor of the belt transmission mechanism 15, and the motor 6 and the control cabinet 14 are all electrically connected.
The selection of the appropriate nozzle 4 is mainly achieved by a first acoustic wave detector 12 and a second acoustic wave detector 13, in particular:
the first acoustic wave detector 12 is placed at a corresponding position of the nozzle 4 connected with the nozzle fixing pipeline 1, the first acoustic wave detector 12 is used for detecting the loss of the nozzle 4 and transmitting the loss to the control cabinet 14 in real time, the control cabinet 14 is integrated with a loss threshold value, when the loss of the used nozzle 4 exceeds the loss threshold value, the loss of the nozzle 4 is excessively large, the nozzle needs to be replaced, jet flow is stopped, and the belt transmission mechanism 15 and the motor 6 are started to replace the nozzle 4.
The second sonic detector 13 is disposed at a corresponding position of the rock 16 to be cut, the second sonic detector 13 is used for detecting the type of the rock, database information is integrated in the control cabinet 14, the database information corresponds the type of the nozzle 4 with the type of the rock, and when the type of the nozzle 4 is not matched with the type of the rock, the belt transmission mechanism 15 and the motor 6 are started to replace the nozzle 4.
In this embodiment, the automatic nozzle replacement device for the abrasive water jet system is implemented by: the first sonic breaking detector 12 and the second sonic detector 13 are turned on, the control cabinet 14 judges that the nozzle 4 connected with the nozzle fixing pipeline 1 is not matched, the model of the nozzle 4 needs to be selected again, the control cabinet 14 is matched through a database, and the nozzle 4 matched with the rock type to be cut or the nozzle with the loss smaller than the loss threshold value is selected.
The control cabinet 14 thus initiates a signal to the motor 6 and the belt conveyor 15.
The belt conveying mechanism 15 is started first, the screw 11 and the rotating shaft 10 rotate, so that the supporting seat 9 carrying the second gear 23 gradually descends until the gear transmission mechanism 25 is meshed with the first gear 20, the nozzle communicating pipeline 3 continuously rotates reversely under the driving of the second gear 23, at the moment, the downward moving speed of the second gear 23 is equal to the moving speed of the nozzle communicating pipeline 3 until the nozzle communicating pipeline 3 is disconnected with the nozzle fixing pipeline, and the length of the second external thread 19 is larger than that of the first external thread 18, so that the nozzle communicating pipeline 3 is still fixed on the mounting bushing 82.
Then the motor 6 rotates θ to switch the appropriate nozzle 4 and the corresponding nozzle communication pipeline 3 to the pre-installation position, and at this time, the belt transmission mechanism 15 drives the second gear 23 to move upwards until the gear transmission mechanism 25 is meshed with the first gear 20 of the nozzle 4, and the second gear 23 drives the nozzle communication pipeline 3 to rotate forward until the first external thread 18 is completely matched with the internal thread 21 of the nozzle fixing pipeline.
The nozzle 4 is replaced and the abrasive jet cutting operation is performed.
The above embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention.
Claims (9)
1. An automatic nozzle replacement device for an abrasive water jet system, characterized in that: the device comprises a nozzle fixing pipeline and a nozzle, wherein the nozzle is connected with a nozzle communicating pipeline, the nozzle communicating pipeline is provided with a first external thread and a second external thread which are gradually close to the nozzle, the first external thread is matched with the internal thread of the nozzle fixing pipeline, one side of the nozzle fixing pipeline is provided with a nozzle switching device, the nozzle switching device is connected with a plurality of nozzle arranging components, the nozzle communicating pipeline is arranged on the nozzle arranging components in a mode that the second external thread is matched with the internal thread of the nozzle arranging components, the nozzle switching device can move the nozzle communicating pipeline provided with the selected nozzle to a pre-installation position below the nozzle fixing pipeline, the other side of the nozzle fixing pipeline is provided with a driving part, the driving part can drive the nozzle communicating pipeline positioned at the pre-installation position to positively rotate, so that the first external thread is connected with the internal thread of the nozzle fixing pipeline, the driving part can drive the nozzle connecting pipe in threaded connection to reversely rotate, and further the first external thread is disconnected with the internal thread of the nozzle fixing pipeline, and the length of the nozzle connecting pipe is smaller than the second external thread in the axial direction.
2. The automatic nozzle exchange device of an abrasive water jet system according to claim 1, wherein: the nozzle communicating pipeline is fixed with first gear, first external screw thread and second external screw thread interval arrangement, first gear is located between first external screw thread and the second external screw thread, drive unit includes the second gear, the second gear can mesh with first gear, perhaps meshes with first gear through gear drive mechanism, the second gear can rotate.
3. The automatic nozzle exchange device of an abrasive water jet system according to claim 2, wherein: the second gear is rotatably arranged in the supporting seat, the second gear is fixed on the rotating shaft, the rotating shaft penetrates through the supporting seat, a screw is arranged on one side of the rotating shaft, the supporting seat is connected with the screw through a nut, and the screw and the rotating shaft are connected with a belt of the belt transmission mechanism, so that the belt transmission mechanism can drive the screw and the rotating shaft to rotate simultaneously.
4. An automatic nozzle changing device of an abrasive water jet system according to claim 3, wherein: the nozzle arrangement component comprises a connecting shaft, one end of the connecting shaft is connected with a mounting bushing, the other end of the connecting shaft is connected with a rotating seat, the nozzle communication pipeline is fixed on the mounting bushing, and the top of the rotating seat is connected with a rotating shaft of the motor.
5. The automatic nozzle exchange device of an abrasive water jet system according to claim 4, wherein: the rotary seat is constructed as a sphere, and all the connection positions of the connecting shafts and the rotary seat are uniformly distributed along the circumferential direction of a certain radial section of the rotary seat.
6. The automatic nozzle exchange device of an abrasive water jet system according to claim 4, wherein: the automatic nozzle replacement device for the abrasive water jet system comprises a first sound wave detector, wherein the first sound wave detector is used for detecting the loss of a nozzle connected with a nozzle fixing pipeline, when the loss of the nozzle is greater than or equal to a loss threshold value, the belt transmission mechanism and the motor are started, so that the loss of the nozzle after replacement is smaller than the loss threshold value, otherwise, the belt transmission mechanism and the motor are not started.
7. The automatic nozzle exchange device of an abrasive water jet system according to claim 6, wherein: the automatic nozzle replacing device for the abrasive water jet system comprises a second sound wave detector, wherein the second sound wave detector is used for detecting the type of rock to be cut, the belt transmission mechanism and the motor are not started when the type of rock corresponds to the nozzle connected with the nozzle fixing pipeline, and the belt transmission mechanism and the motor are started when the type of rock does not correspond to the nozzle connected with the nozzle fixing pipeline, so that the replaced nozzle corresponds to the type of rock.
8. The automatic nozzle exchange device of an abrasive water jet system according to claim 4, wherein: the angle of rotation of the motor is N times of the included angle between the adjacent connecting shafts, and N is a natural number which is more than or equal to 1.
9. The automatic nozzle exchange device of an abrasive water jet system according to claim 4, wherein: the length of the internal thread of the mounting bushing, the length of the first external thread and the length of the internal thread of the nozzle fixing pipeline are equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210277530.5A CN114683178B (en) | 2022-03-21 | 2022-03-21 | Automatic nozzle replacement device for abrasive water jet system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210277530.5A CN114683178B (en) | 2022-03-21 | 2022-03-21 | Automatic nozzle replacement device for abrasive water jet system |
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| CN114683178A CN114683178A (en) | 2022-07-01 |
| CN114683178B true CN114683178B (en) | 2023-12-05 |
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| CN202210277530.5A Active CN114683178B (en) | 2022-03-21 | 2022-03-21 | Automatic nozzle replacement device for abrasive water jet system |
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