CN216077121U - Water jet nozzle based on floating connection structure - Google Patents
Water jet nozzle based on floating connection structure Download PDFInfo
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- CN216077121U CN216077121U CN202122724714.5U CN202122724714U CN216077121U CN 216077121 U CN216077121 U CN 216077121U CN 202122724714 U CN202122724714 U CN 202122724714U CN 216077121 U CN216077121 U CN 216077121U
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Abstract
The utility model provides a water jet nozzle based on a floating connection structure, which relates to the field of tunneling equipment and comprises a nozzle body, an abrasive conduit and an ultrasonic vibration device, wherein the nozzle body is provided with an installation cavity which is communicated up and down, the abrasive conduit is arranged at the top of the installation cavity, the abrasive conduit is provided with an abrasive channel which is communicated up and down, the outer wall of the abrasive conduit is in sealed sliding fit with the inner wall of the installation cavity, and the ultrasonic vibration device is arranged on the nozzle body through the floating connection structure and drives the nozzle body to vibrate up and down relative to the abrasive conduit. The water jet nozzle based on the floating connection structure can improve the rock breaking efficiency of high-pressure water jet.
Description
Technical Field
The utility model relates to the field of tunneling equipment, in particular to a water jet nozzle based on a floating connection structure.
Background
The Tunnel Boring Machine (TBM) can realize parallel and continuous operation of construction procedures such as boring, supporting, deslagging and the like, is factory assembly line tunnel construction equipment integrating systems such as machine, electricity, liquid, light, gas and the like, and has the advantages of high boring speed, environmental friendliness, high comprehensive benefit and the like. The existing tunnel boring machine generally adopts a technical scheme of combining high-pressure water jet and mechanical force to break rock.
The high-pressure water jet is a high-speed water flow which takes water as a medium, obtains huge energy through the increase of high-pressure generating equipment, and is sprayed out through a nozzle with a certain shape and concentrated in energy. Meanwhile, in order to increase the rock breaking capacity of the high-pressure water jet, the abrasive needs to be added into the original pure water jet to form abrasive jet so as to improve the rock breaking efficiency.
However, for hard rock, the impact speed of jet flow sprayed by the existing high-pressure water jet nozzle is low, the rock breaking efficiency is low, and the controllable frequency is less, so that the tunneling efficiency of tunneling construction is influenced.
In view of the above, the inventor designs a water jet nozzle based on a floating connection structure through repeated experiments according to production design experiences in the field and related fields for many years, so as to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a water jet nozzle based on a floating connection structure, which can improve the rock breaking efficiency of high-pressure water jet.
In order to achieve the above purpose, the present invention provides a water jet head based on a floating connection structure, wherein the water jet head based on the floating connection structure includes a head body, an abrasive conduit and an ultrasonic vibration device, the head body has an installation cavity which is through up and down, the abrasive conduit is arranged on the top of the installation cavity, the abrasive conduit is provided with an abrasive channel which is through up and down, the outer wall of the abrasive conduit is in sealed sliding fit with the inner wall of the installation cavity, and the ultrasonic vibration device is installed on the head body through the floating connection structure and drives the head body to vibrate up and down relative to the abrasive conduit.
The water jet head based on the floating connection structure comprises a water jet head, wherein the ultrasonic vibration device is made of piezoelectric ceramics, the floating connection structure at least comprises a first elastic pressing sheet, a connecting bolt and a connecting nut, the top end of the abrasive conduit protrudes upwards to form an installation cavity, the top end of the abrasive conduit is provided with a first installation part protruding outwards in the radial direction, the top end of the jet head is provided with a second installation part protruding outwards in the radial direction, the piezoelectric ceramics are annular and are arranged between the first installation part and the second installation part, the connecting bolt penetrates through the first installation part, the piezoelectric ceramics, the second installation part, the first elastic pressing sheet and the connecting nut in sequence, the connecting bolt is in threaded fit with the connecting nut, and the first installation part, the piezoelectric ceramics, The second mounting part is connected with the first elastic pressing piece.
As above water jet head based on connection structure floats, wherein, connection structure floats still includes second elasticity preforming and lock nut, the top of shower head body is equipped with the convex third installation department that makes progress, the third installation department upwards runs through in proper order piezoceramics first installation department second elasticity preforming with lock nut, lock nut with third installation department screw-thread fit will second elasticity preforming piezoceramics with first installation department links together.
The water jet head based on the floating connection structure comprises a mounting cavity, a water jet head body, a locking nut and a plurality of third mounting parts, wherein the top end of the water jet head body is provided with the plurality of third mounting parts, each third mounting part is arranged on the periphery of the top end inlet of the mounting cavity and is distributed uniformly along the circumferential direction of the water jet head body, and the third mounting parts are correspondingly connected with the second elastic pressing piece and the locking nut.
The water jet head based on the floating connection structure is characterized in that a nozzle is installed at an outlet at the bottom end of the installation cavity, the nozzle is provided with a spray cavity which is communicated up and down, and the inner wall surface of the top of the spray cavity is an inner conical surface which is gradually reduced in diameter from top to bottom.
The water jet head based on the floating connection structure comprises a nozzle body, wherein the nozzle body is internally provided with at least one flow guide channel, one end of the flow guide channel is opened on the outer wall of the nozzle body, and the other end of the flow guide channel is opened on the inner wall of the mounting cavity between the abrasive conduit and the nozzle.
The water jet nozzle based on the floating connection structure is characterized in that a limiting boss which is matched with the abrasive conduit in a contraposition mode is arranged on the inner wall of the installation cavity, the limiting boss is located below the abrasive conduit and protrudes inwards along the radial direction of the installation cavity, and a gap is formed between the upper end face of the limiting boss and the end face of the bottom of the abrasive conduit.
The water jet nozzle based on the floating connection structure is characterized in that the end surface of the bottom of the abrasive conduit is an outer conical surface gradually reducing from top to bottom, and the upper end surface of the limiting boss is an inner conical surface gradually reducing from top to bottom.
The water jet head based on the floating connection structure is characterized in that the inner wall surface of the abrasive passage extends downwards to form a flow guide pipe protruding out of the end surface of the bottom of the abrasive guide pipe, and a gap is formed between the outer wall of the flow guide pipe and the limiting boss.
As above water jet head based on connection structure floats, wherein, seted up at least one mounting ring groove on the outer wall of abrasive material pipe, the mounting ring groove is followed abrasive material pipe's circumference is seted up, the embedded sealing washer that is equipped with of mounting ring groove, the sealing washer with the sealed sliding fit of inner wall of installation cavity.
Compared with the prior art, the utility model has the following characteristics and advantages:
the water jet nozzle based on the floating connection structure provided by the utility model utilizes the nozzle body as the ultrasonic amplitude transformer vibration unit, thereby effectively simplifying the structural design; meanwhile, the vibration unit is larger, so that the ultrasonic conversion efficiency is further improved.
According to the water jet nozzle based on the floating connection structure, the ultrasonic vibration device is arranged on the nozzle body through the floating connection structure, so that the control and cooling are more convenient, and the service life of a product is prolonged.
The water jet spray head based on the floating connection structure is simple in structure, high in reliability, easy to machine, maintain and replace.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for facilitating the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. Those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the utility model as a matter of case.
FIG. 1 is a schematic structural diagram of a water jet head based on a floating connection structure according to the present invention;
fig. 2 is a partial enlarged view of the nozzle of the present invention.
Description of reference numerals:
100. a water jet nozzle based on a floating connection structure; 10. A spray head body;
12. a second mounting portion; 13. A third mounting portion;
14. a flow guide channel; 15. A limiting boss;
20. an abrasive conduit; 21. An abrasive channel;
22. a first mounting portion; 23. Mounting a ring groove;
24. a flow guide pipe; 30. An ultrasonic vibration device;
40. a floating connection structure; 41. A first elastic pressing sheet;
42. a connecting bolt; 43. A connecting nut;
44. a second elastic pressing sheet; 45. Locking the nut;
50. a nozzle; 51. An ejection chamber;
60. and (5) sealing rings.
Detailed Description
The details of the present invention can be more clearly understood in conjunction with the accompanying drawings and the description of the embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of illustration only and are not to be construed as limiting the utility model in any way. Any possible variations based on the present invention may be conceived by the skilled person in the light of the teachings of the present invention, and these should be considered to fall within the scope of the present invention.
As shown in fig. 1 and 2, the present invention provides a water jet head 100 based on a floating connection structure, the water jet head 100 based on the floating connection structure includes a head body 10, an abrasive conduit 20 and an ultrasonic vibration device 30, the head body 10 has an installation cavity penetrating up and down, the abrasive conduit 20 is disposed at the top of the installation cavity, the outer wall of the abrasive conduit 20 is in sealing sliding fit with the inner wall of the installation cavity, the abrasive conduit 20 is provided with an abrasive passage 21 penetrating up and down, and the ultrasonic vibration device 30 is mounted on the head body 10 through the floating connection structure 40 and drives the head body 10 to vibrate up and down relative to the abrasive conduit 20.
According to the water jet head 100 based on the floating connection structure, the ultrasonic vibration device 30 is mounted on the head body 10 through the floating connection structure 40 and drives the head body 10 to vibrate up and down relative to the abrasive conduit 20, so that the whole head body 10 is used as an ultrasonic vibration unit to endow fluid flowing through the inside of the ultrasonic vibration unit with ultrasonic vibration waves, and the rock breaking efficiency of the water jet is improved; in addition, the nozzle body 10 and the abrasive conduit 20 generate relative reciprocating motion due to vibration, so that the volume of the part of the installation cavity below the abrasive conduit 20 is rapidly changed, a pulse jet related to the ultrasonic vibration frequency is formed, and finally, an ultrasonic pulse jet is formed at the outlet at the bottom end of the installation cavity, thereby further enhancing the rock breaking effect.
The water jet nozzle 100 based on the floating connection structure provided by the utility model utilizes the nozzle body 10 as an ultrasonic amplitude transformer vibration unit, thereby effectively simplifying the structural design; meanwhile, the ultrasonic conversion efficiency is further improved due to the larger volume of the spray head body 10 (namely, the larger vibration unit).
According to the water jet nozzle 100 based on the floating connection structure, the ultrasonic vibration device 30 is externally arranged on the nozzle body 10 through the floating connection structure, so that the control and cooling are more convenient, and the service life of a product is prolonged.
The water jet nozzle 100 based on the floating connection structure has the advantages of simple structure, high reliability, easy processing, easy maintenance and easy replacement.
In an alternative embodiment of the present invention, the ultrasonic vibration device 30 is a piezoelectric ceramic, the floating connection structure 40 at least includes a first elastic pressing sheet 41, a connection bolt 42 and a connection nut 43, the top end of the abrasive conduit 20 protrudes out of the mounting cavity, the top end of the abrasive conduit 20 is provided with a first mounting portion 22 protruding outward along the radial direction of the abrasive conduit 20, the top end of the sprinkler body 10 is provided with a second mounting portion 12 protruding outward along the radial direction of the sprinkler body 10, and the first connection bolt sequentially penetrates through the first mounting portion 22, the piezoelectric ceramic, the second mounting portion 12, the first elastic pressing sheet 41 and the connection nut 43, so as to connect the sprinkler body 10, the piezoelectric ceramic, the abrasive conduit 20 and the first elastic pressing sheet 41 together, and enable the sprinkler body 10 and the abrasive conduit 20 to vibrate and generate a relative reciprocating motion under the effect of the piezoelectric ceramic. The nozzle body 10 and the abrasive conduit 20 generate relative reciprocating motion due to vibration, so that the accommodation of the part of the installation cavity below the abrasive conduit 20 is changed rapidly, the fluid in the installation cavity forms pulse jet related to the ultrasonic vibration frequency, and finally ultrasonic pulse jet is formed at the outlet at the bottom of the installation cavity, and the effect of reinforcing rock breaking is achieved.
In this embodiment, the piezoelectric ceramic is externally connected to a high-frequency signal line, and when energized, converts electrical energy into ultrasonic vibration.
In an alternative example of this embodiment, the floating connection structure 40 includes a plurality of sets of first elastic pressing plates 41, connection bolts 42 and connection nuts 43, the plurality of connection bolts 42 are uniformly distributed along the circumferential direction of the nozzle body 10, and each connection bolt 42 is correspondingly sleeved with a first elastic pressing plate 41 and a connection nut 43, so as to further enhance the connection strength between the ultrasonic vibration device 30, the abrasive conduit 20 and the nozzle body 10.
In an optional example of this embodiment, the floating connection structure 40 further includes a second elastic pressing piece 44 and a lock nut 45, the top end of the nozzle body 10 is provided with a third mounting portion 13 protruding upward, the third mounting portion 13 sequentially penetrates through the piezoelectric ceramic, the first mounting portion 22, the second elastic pressing piece 44 and the lock nut 45 upward, the lock nut 45 is in threaded fit with the third mounting portion 13, and then the second elastic pressing piece 44, the piezoelectric ceramic and the first mounting portion 22 are connected together, so that the connection firmness between the nozzle body 10, the ultrasonic vibration device 30 (piezoelectric ceramic) and the abrasive conduit 20 is improved, and the connection between the nozzle body 10 and the abrasive conduit 20 is prevented from being loosened due to vibration.
Further, the top end of the spray head body 10 is provided with a plurality of third mounting parts 13, each third mounting part 13 is respectively arranged on the periphery of the top end inlet of the mounting cavity and is uniformly distributed along the circumferential direction of the spray head body 10, and each third mounting part 13 is correspondingly connected with a second elastic pressing sheet 44 and a locking nut 45.
Preferably, the first elastic pressing plate 41 and the second elastic pressing plate 44 are both high-elasticity spring pressing plates, so that the reciprocating motion between the nozzle body 10 and the abrasive conduit 20 has a large variation range, the vibration frequency of the nozzle body 10 and the abrasive conduit 20 can be adjusted in a wider range, and a pulse jet carrying high-frequency vibration waves can be formed.
In an alternative embodiment of the present invention, a nozzle 50 is installed at the outlet of the bottom end of the installation cavity, the nozzle 50 has a spray cavity 51 which is through from top to bottom, and the inner wall surface of the top of the spray cavity 51 is an inner conical surface which gradually reduces in diameter from top to bottom. By adopting the structure, the fluid flowing out of the abrasive channel 21 in the abrasive conduit 20 enters the nozzle 50 and then is accelerated by the jet cavity 51 with the reduced opening and the diameter, so that the fluid is converted into a high-speed and high-pressure state, the impact speed is increased, and the rock breaking efficiency is improved.
In an optional example of this embodiment, at least one flow guide channel 14 is formed inside the nozzle body 10, one end of the flow guide channel 14 is opened on the outer wall of the nozzle body 10, the other end of the flow guide channel 14 is opened on the inner wall of the mounting cavity between the abrasive conduit 20 and the nozzle 50, and the fluid flowing out from the abrasive conduit 20 is accelerated and simultaneously generates a vacuum degree in the ejection cavity 51, so as to further generate an adsorption effect on the fluid in the abrasive conduit 20 and the fluid in the flow guide channel 14, and generate a self-priming effect.
In an alternative example, the abrasive conduit 20 delivers abrasive, and the flow guide channel 14 is used to deliver high-pressure water, and the abrasive and the high-pressure water are mixed at the top of the injection cavity 51 to form high-speed and high-pressure ultrasonic pulse jet with abrasive, so as to achieve the effect of enhancing rock breaking.
In an optional example, a plurality of flow guide channels 14 are formed in the nozzle body 10, the flow guide channels 14 are arranged in one-to-one correspondence with the third mounting portions 13, and one end of each flow guide channel 14 is opened on the top surface of the third mounting portion 13.
In an alternative example, the nozzle 50 is a wear resistant nozzle.
In an alternative embodiment of the present invention, a limiting boss 15 aligned and matched with the abrasive conduit 20 is disposed on an inner wall of the mounting cavity, the limiting boss 15 is located below the abrasive conduit 20 and protrudes inward along a radial direction of the mounting cavity, and a gap is provided between an upper end face of the limiting boss 15 and an end face of the bottom of the abrasive conduit 20.
In an alternative example of this embodiment, the end surface of the bottom of the abrasive conduit 20 is an external conical surface gradually reducing from top to bottom, and the upper end surface of the limiting boss 15 is an internal conical surface gradually reducing from top to bottom.
In an alternative example of this embodiment, the inner wall surface of the abrasive passage 21 extends downward and forms a flow guide tube 24 protruding from the end surface of the bottom of the abrasive guide tube 20, and a gap is provided between the outer wall of the flow guide tube 24 and the limiting boss 15.
In an alternative example of this embodiment, the other end of the flow guide channel 14 opens below the limit boss 15.
In an alternative embodiment of the present invention, the outer wall of the abrasive conduit 20 is formed with at least one mounting ring groove 23, the mounting ring groove 23 is formed along the circumferential direction of the abrasive conduit 20, and a sealing ring 60 is disposed in the mounting ring groove 23 to further ensure the sealing sliding fit between the abrasive conduit 20 and the nozzle body 10.
In an alternative example of this embodiment, the outer wall of the abrasive conduit 20 is provided with 3 mounting ring grooves 23, the 3 mounting ring grooves 23 are sequentially arranged from top to bottom at intervals, and a sealing ring 60 is respectively sleeved in each mounting ring groove 23.
Referring to fig. 1, the assembly and use process of the floating connection structure based water jet nozzle 100 according to the present invention will be described in detail with reference to an embodiment:
as shown in fig. 1, the piezoelectric ceramics (ultrasonic vibration device 30) is sleeved on the nozzle body 10 provided with the nozzle 50 from the third mounting part 13, the abrasive conduit 20 provided with the three sealing rings 60 is also sleeved and extends into the mounting cavity, and the connecting nut 43 and the locking nut 45 are respectively locked according to the required pretightening force of the piezoelectric ceramics.
When the self-priming abrasive nozzle is used, the whole of the nozzle body 10 and the nozzle 50 are used as an ultrasonic vibration unit to endow ultrasonic pulses to water flow flowing through the inside of the ultrasonic vibration unit, so that the purpose of self-priming abrasive is achieved, meanwhile, the nozzle body 10 and the abrasive conduit 20 generate relative reciprocating motion due to vibration, the volume between the abrasive conduit 20 and the nozzle 50 is rapidly changed, pulse jet flow related to ultrasonic vibration frequency is formed, finally, ultrasonic pulse jet flow with abrasive is formed at the outlet of the nozzle 50, and the effect of enhancing rock breaking is achieved.
The present invention is not limited to the above embodiments, and in particular, various features described in different embodiments can be arbitrarily combined with each other to form other embodiments, and the features are understood to be applicable to any embodiment except the explicitly opposite descriptions, and are not limited to the described embodiments.
Claims (10)
1. The utility model provides a water jet head based on connection structure floats, its characterized in that, water jet head based on connection structure floats includes sprinkler body, abrasive material pipe and ultrasonic vibration device, the sprinkler body has the installation cavity that link up from top to bottom, the abrasive material pipe is located the top of installation cavity, the abrasive material passageway that link up from top to bottom is seted up to the abrasive material pipe, the outer wall of abrasive material pipe with the sealed sliding fit of inner wall of installation cavity, the ultrasonic vibration device is installed through connection structure floats on the sprinkler body and drive the sprinkler body for the abrasive material pipe vibrates from top to bottom.
2. The water jet head based on the floating connection structure as claimed in claim 1, wherein the ultrasonic vibration device is a piezoelectric ceramic, the floating connection structure at least comprises a first elastic pressing piece, a connection bolt and a connection nut, the top end of the abrasive conduit protrudes upwards to form a mounting cavity, the top end of the abrasive conduit is provided with a first mounting portion protruding outwards in the radial direction of the abrasive conduit, the top end of the head body is provided with a second mounting portion protruding outwards in the radial direction of the head body, the piezoelectric ceramic is annular and is arranged between the first mounting portion and the second mounting portion, the connection bolt sequentially penetrates through the first mounting portion, the piezoelectric ceramic, the second mounting portion, the first elastic pressing piece and the connection nut, and the connection bolt is in threaded fit with the connection nut to connect the first mounting portion, the second mounting portion, the connection bolt, the second mounting portion, the connection nut, and the connection bolt, The piezoelectric ceramic, the second mounting part and the first elastic pressing piece are connected together.
3. A water jet head based on a floating connection structure as claimed in claim 2, wherein said floating connection structure further comprises a second elastic pressing piece and a locking nut, a third mounting portion protruding upwards is provided at the top end of said head body, said third mounting portion upwards sequentially penetrates through said piezoelectric ceramic, said first mounting portion, said second elastic pressing piece and said locking nut, and said locking nut and said third mounting portion are in threaded engagement to connect said second elastic pressing piece, said piezoelectric ceramic and said first mounting portion together.
4. A water jet head based on a floating connection structure as claimed in claim 3, wherein a plurality of said third mounting portions are provided at the top end of said head body, each said third mounting portion is provided at the periphery of the inlet at the top end of said mounting chamber and is distributed uniformly along the circumference of said head body, and each said third mounting portion is correspondingly connected with said second elastic pressing piece and said lock nut.
5. The water jet head based on the floating connection structure as claimed in claim 1, wherein a nozzle is installed at an outlet at the bottom end of the installation cavity, the nozzle is provided with a spray cavity which is communicated up and down, and an inner wall surface at the top of the spray cavity is an inner conical surface which is gradually reduced in diameter from top to bottom.
6. A water jet head based on a floating connection structure as claimed in claim 5, wherein said head body defines at least one flow guide channel therein, one end of said flow guide channel opens onto an outer wall of said head body, and the other end of said flow guide channel opens onto an inner wall of said mounting chamber between said abrasive conduit and said nozzle.
7. A water jet head based on a floating connection structure as claimed in claim 1, wherein a limiting boss aligned and matched with the abrasive conduit is provided on an inner wall of the mounting cavity, the limiting boss is located below the abrasive conduit and protrudes inward along a radial direction of the mounting cavity, and a gap is provided between an upper end surface of the limiting boss and an end surface of the bottom of the abrasive conduit.
8. The water jet head based on the floating connection structure of claim 7, wherein the end surface of the bottom of the abrasive conduit is an external conical surface gradually reducing in diameter from top to bottom, and the upper end surface of the limiting boss is an internal conical surface gradually reducing in diameter from top to bottom.
9. A water jet head based on a floating connection structure as claimed in claim 7, wherein an inner wall surface of said abrasive passage extends downward and forms a flow guide tube protruding from an end surface of a bottom portion of said abrasive guide tube, and a gap is provided between an outer wall of said flow guide tube and said stopper boss.
10. A water jet head based on a floating connection structure as claimed in claim 1, wherein the outer wall of said abrasive conduit is provided with at least one mounting ring groove, said mounting ring groove is formed along the circumference of said abrasive conduit, and a sealing ring is embedded in said mounting ring groove, and said sealing ring is in sealing sliding fit with the inner wall of said mounting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122724714.5U CN216077121U (en) | 2021-11-09 | 2021-11-09 | Water jet nozzle based on floating connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122724714.5U CN216077121U (en) | 2021-11-09 | 2021-11-09 | Water jet nozzle based on floating connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216077121U true CN216077121U (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122724714.5U Active CN216077121U (en) | 2021-11-09 | 2021-11-09 | Water jet nozzle based on floating connection structure |
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|---|---|
| CN (1) | CN216077121U (en) |
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2021
- 2021-11-09 CN CN202122724714.5U patent/CN216077121U/en active Active
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