CN210460675U - Cutter head assembly and water jet equipment - Google Patents
Cutter head assembly and water jet equipment Download PDFInfo
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- CN210460675U CN210460675U CN201921107871.8U CN201921107871U CN210460675U CN 210460675 U CN210460675 U CN 210460675U CN 201921107871 U CN201921107871 U CN 201921107871U CN 210460675 U CN210460675 U CN 210460675U
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Abstract
The utility model provides a blade disc subassembly and water jet equipment, wherein, the blade disc subassembly includes: the body is provided with an installation part; the hob is arranged on the body through the mounting part; the fixing seat is arranged on the body through the mounting part; the shower nozzle, the shower nozzle sets up on the fixing base. The utility model provides a cutter head assembly, the fixing base can be through setting up the installation department of hobbing cutter setting on the body, and the shower nozzle setting is on the fixing base, make and need not to change the current structure of body, can set up the shower nozzle on the body through the installation department with the fixing base with the installation hobbing cutter cooperateing, it just can set up the shower nozzle on the body to have avoided carrying out the institutional advancement to the body, and simultaneously, need not to carry out a large amount of modification adjustments to the structure or the intensity of body, easy to assemble, be favorable to reduction in production cost, and is suitable for popularization and application.
Description
Technical Field
The utility model relates to an engineering machine tool technical field particularly, relates to a blade disc subassembly and a water jet equipment.
Background
In the existing TBM (Tunnel Boring Machine), by pushing a cutter head, disc cutters arranged on the cutter head press a face rock mass, cracks in the rock mass between adjacent cutters are expanded and communicated, broken rock ballast is peeled off and separated, and rock breaking and Boring are realized. In order to create cracks in the rock, it is necessary to apply sufficient thrust to penetrate the tool, and in hard and very hard rock formations where the compressive strength of the rock is high, it is difficult to withstand the thrust required to achieve rock breaking due to the limitations in the strength of the tool material. In addition, even in medium hard rock formations, the total thrust required by a large number of roller cutters can be difficult to meet due to structural strength limitations of the main bearings, support struts, shoes, etc., in the case of large tunnel diameters, which limits the operational capacity and efficiency of the TBM. Therefore, at present, research is carried out on the arrangement of a water jet cutting nozzle on the cutter head of the existing TBM to improve the rock breaking efficiency and the rock breaking capacity of the hob, so that the working capacity of the TBM in hard rock and extremely hard rock strata is improved, however, a large number of devices and structures such as cutters, wear-resistant blocks, reinforcing ribs and the like are arranged on the cutter head, the position for placing the water jet cutting nozzle is increased, and a large number of modification and adjustment needs to be carried out on the structural strength.
SUMMERY OF THE UTILITY MODEL
The present invention aims at least solving one of the technical problems existing in the prior art or the related art.
To this end, the first aspect of the present invention is to provide a cutter head assembly.
A second aspect of the present invention is to provide a water jet device.
In view of this, according to the first aspect of the present invention, there is provided a cutter head assembly, comprising: the body is provided with an installation part; the hob is arranged on the body through the mounting part; the fixing seat is arranged on the body through the mounting part; the shower nozzle, the shower nozzle sets up on the fixing base.
The utility model provides a cutter head assembly, which comprises a body, the hobbing cutter, fixing base and shower nozzle, through be provided with the installation department on the body, the hobbing cutter passes through the installation department and sets up on the body, the installation department is used for installing the hobbing cutter on the body promptly, the fixing base passes through the installation department and sets up on the body, promptly the fixing base can be through setting up the installation department on the body with the hobbing cutter, and the shower nozzle sets up on the fixing base, make and need not to change the current structure of body, can set up the shower nozzle on the body through cooperateing the installation department with the fixing base with the installation hobbing cutter, it just can set up the shower nozzle on the body to have avoided needing to carry out the institutional advancement to the body (like the trompil), and simultaneously, need not to carry out a large amount of modification adjustment.
In addition, according to the utility model provides an among the above-mentioned technical scheme's cutterhead subassembly can also have following additional technical characteristics:
in the above technical solution, preferably, the body is disc-shaped, the number of the nozzles is multiple, the nozzles are distributed on the body in a circular shape, and the diameter of the circular shape is smaller than the radius of the body; the quantity of installation department is a plurality of, and the quantity of fixing base is a plurality of, and the quantity of installation department is greater than the quantity of fixing base.
In this technical scheme, the body is discoid, the quantity of shower nozzle is a plurality of, a plurality of shower nozzles are circular distribution on the body, a plurality of shower nozzles distribute in a circular region promptly, and this circular region is concentric with discoid body, be less than the radius of body through setting up the circular diameter, circular radius is less than the half of the radius of body promptly, make the shower nozzle arrange between the hobbing cutter that is close to body gyration axle center, because the lancing depth of water jet becomes the inverse proportion relation with the velocity of motion of shower nozzle, when making the body work rotatory, the shower nozzle that is located near the body gyration axle utilizes lower linear velocity can guarantee great lancing depth, and then improve the collaborative crushing ability of hobbing cutter and water jet greatly, and then improve cutterhead assembly's broken rock efficiency, and guarantee good crushing effect.
The quantity through installation department and fixing base is a plurality ofly, and a plurality of hobbing cutters pass through a plurality of installation departments and set up on the body, and the quantity of installation department is greater than the quantity of fixing base, and the fixing base only sets up on partial installation department promptly for the shower nozzle is located between the partial hobbing cutter, and the quantity of shower nozzle is less than the quantity of hobbing cutter, avoids the more and extravagant cost of quantity of shower nozzle, avoids the quantity of shower nozzle less and can't guarantee good broken rock ability simultaneously.
In any of the above technical solutions, preferably, the method further includes: the first protection block is arranged on the body and is positioned on the peripheral side of the mounting part; the second protection block is arranged on the first protection block on the peripheral side of the fixed seat and is positioned on one side, away from the body, of the first protection block.
In the technical scheme, a first protection block is arranged on a body, the first protection block is positioned on the peripheral side of an installation part and can work on a cutter head assembly, when a hob contacts with a working surface (for example, when the cutter head assembly is applied to tunneling equipment, the working surface is called as a 'working surface'), the abrasion and the damage of the working surface to the body are reduced through the first protection block, so that the reliability of the body is improved, a second protection block is arranged on the first protection block positioned on the peripheral side of a fixed seat and positioned on one side of the first protection block far away from the body, namely, the second protection block is positioned on the peripheral side of a nozzle and faces towards the working surface, a certain protection effect is exerted on the nozzle, the nozzle is prevented from being abraded or damaged by collision due to the fact that the working surface is uneven in the working process of the cutter head assembly, the service life of the nozzle is prolonged, the reliability of a product is improved, and meanwhile, the height difference between the surface of the second protection block far away from the first protection block and an adjacent hob, and then guarantee that the shower nozzle is towards the one side of working face and the perpendicular distance between the working face is reasonable, through reasonable target distance in order to guarantee good cutting effect promptly. It can be understood that, since the farther the perpendicular distance between the spray head and the working surface (such as the tunnel surface) is, the smaller the cutting depth of the water jet is, the working parameters of the cutter head assembly can be adjusted according to the height difference between the surface of the second protection block far away from the first protection block and the adjacent hob, namely according to the target distance, so as to further improve the cutting efficiency and ensure good cutting effect.
In any of the above technical solutions, preferably, the method further includes: the cushion block is arranged on the body and located on one side, away from the first protection block, of the body, and the fixing seat is connected with the cushion block.
In the technical scheme, through setting up the cushion on the body, the cushion is located the body and keeps away from one side of first protection piece, be connected with the cushion through the fixing base and then set up the fixing base on the installation department, make need not to change the structure of mount pad, also need not to change the structure of body, can set up the fixing base on the body through the cushion, and then set up the shower nozzle on the body, moreover, the steam generator is simple in structure, easily realize, and easy operation, be favorable to the installation, and simultaneously, the production cost is reduced, and the standardized demand of body is satisfied.
In any of the above technical solutions, preferably, the fixing base is provided with a mounting hole, an axis of the mounting hole is parallel to an axis of the body, and the spray head is arranged on the fixing base through the mounting hole; wherein the spray head can be locked by the mounting hole.
In this technical scheme, the fixing base is provided with the mounting hole, and the axis of mounting hole parallels with the axis of body, and the shower nozzle is located on the fixing base through the mounting hole for cutter head assembly during operation, the theoretical cross section of through shower nozzle spun water jet is parallel with the working face, further promotes water jet energy utilization, improves the work efficiency and the operational capability of water jet.
The shower nozzle can be through the mounting hole locking, is provided with limit structure on shower nozzle and/or the mounting hole promptly, after the shower nozzle inserts the mounting hole, utilizes limit structure can be with the shower nozzle locking in the mounting hole, has avoided establishing locking structure in addition and has made the structure complicated, has simplified the structure effectively, simultaneously, has further simplified the installation of shower nozzle, is favorable to improving the installation effectiveness of shower nozzle.
In any of the above technical solutions, preferably, the distances between the axes of the two hobs located on both sides of the mounting hole and adjacent to the mounting hole and the axis of the mounting hole are equal.
In the technical scheme, the distance between the axes of the two hobs which are positioned on the two sides of the mounting hole and are adjacent to the mounting hole is equal to the distance between the axes of the mounting hole, namely the spray head is positioned between the two adjacent hobs, when the cutter head assembly works, the water jet cutting seam is positioned between the tracks of the two adjacent hobs, and then the free surface which is formed by the water jet cutting seam and is beneficial to improving the rock breaking efficiency and the rock breaking capacity of the hobs is positioned between the tracks of the two adjacent hobs, the rock breaking efficiency of the cutter head assembly is further improved, and the working condition requirements of hard rock and extremely hard rock strata can be met, meanwhile, the rock breaking capacity is effectively improved, and a good breaking effect is ensured.
In any of the above technical solutions, preferably, the height difference between the surface of the second protection block away from the first protection block and the adjacent hob is in a range of 20mm to 100 mm.
In the technical scheme, the range of the height difference between the side, away from the first protection block, of the second protection block and the adjacent hob is 20mm to 100mm, because in actual construction, the working surface (such as a tunnel face) is uneven, the height difference between the side, away from the first protection block, of the second protection block and the adjacent hob is set to be 20mm to 100mm, namely the target distance is 20mm to 100mm, the spray head can be effectively prevented from being damaged or abraded by the working surface due to the fact that the target distance is too small, meanwhile, the influence on the crushing capacity due to the fact that the cutting depth of the water jet is smaller due to the fact that the target distance is too large can be avoided, the service life of the spray head can be effectively prolonged within a reasonable range of the target distance, the reliability of a product is improved, meanwhile, the rock breaking efficiency and the rock breaking capacity are further improved, and a good.
In any of the above technical solutions, preferably, the spray head includes: the nozzle is arranged on one side of the fixed seat close to the second protection block; the ratio range of the diameter of the nozzle to the height difference between the surface of the second protection block far away from the first protection block and the adjacent hob is as follows: 0.01 to 0.05.
In this technical scheme, the shower nozzle includes the nozzle, the nozzle is located the fixing base and is close to one side of second protection piece, the nozzle is located one side of body orientation working face promptly, make the water jet flow through the nozzle spout after acting on the working face, the diameter through the nozzle is kept away from the one side of first protection piece and the ratio scope of the difference in height of adjacent hobbing cutter with the second protection piece and is 0.01 to 0.05, make through nozzle spun water jet have great kerf depth, and then be favorable to improving the broken rock efficiency and the broken rock ability of cutter head assembly, and can satisfy the operating mode demand of cutting hard rock and extremely hard rock stratum, the application range of product has further been enlarged.
Furthermore, the working pressure of the nozzle is not less than 250MPa, the cutting depth of the water jet can be further increased, the utilization rate of the water jet is improved, and the rock breaking efficiency and the rock breaking capacity of the cutter head assembly are further improved. It can be understood that the working pressure of the nozzle can also be reasonably set according to specific working conditions (such as the rock hardness of a working face) so as to save energy consumption and reduce use cost while ensuring rock breaking efficiency and rock breaking capacity.
In any of the above technical solutions, preferably, the method further includes: rotary joint sets up the one side of keeping away from first protection piece at the body, and rotary joint includes: the inner shaft is coaxial with the body, and the body rotates to drive the inner shaft to rotate; the sleeve body is sleeved on the inner shaft; the material conveying component penetrates through the inner shaft and the sleeve body, the material conveying component is provided with a material conveying passage for conveying abrasive materials and a liquid conveying passage for conveying high-pressure fluid, and the material conveying passage and the liquid conveying passage are communicated with the spray head.
In the technical scheme, a rotary joint is arranged on one side of a body far away from a first protective block, namely, the side of the body far away from a working surface is provided with the rotary joint, the rotary joint comprises an inner shaft, a sleeve body and a material conveying assembly, the inner shaft is coaxial with the body, the sleeve body is sleeved on the inner shaft, the body drives the inner shaft to rotate when rotating, but the sleeve body is kept fixed and does not rotate at the moment, namely, the sleeve body is fixed and does not rotate when the body drives the inner shaft to rotate, the material conveying assembly penetrates through the inner shaft and the sleeve body and is provided with a material conveying passage for conveying abrasive materials and a liquid conveying passage for conveying high-pressure fluid, the material conveying passage and the liquid conveying passage are both communicated with a spray head, so that water jet sprayed by the spray head is composed of the high-pressure fluid and the abrasive materials, the cutting capability of the water jet can be greatly improved by the abrasive materials contained in the water jet, and can guarantee good broken rock ability and broken rock efficiency, further enlarge the application range of product.
In any of the above technical solutions, preferably, the rotary joint further includes: the two sealing devices are arranged between the inner shaft and the sleeve body at intervals along the axial direction of the inner shaft; and the two shunting channels are arranged on the sleeve body and positioned between the two sealing devices, and the two shunting channels are communicated with a gap between the inner shaft and the sleeve body.
In the technical scheme, the rotary joint also comprises two sealing devices and two shunt channels, the two sealing devices are arranged between the inner shaft and the sleeve body at intervals along the axial direction of the inner shaft, so that the sealing performance and the reliability of the connection between the inner shaft and the sleeve body are effectively ensured, the two shunt channels are arranged on the sleeve body and are positioned between the two sealing devices and communicated with a gap between the inner shaft and the sleeve body for injecting high-pressure fluid into two sides of the connection part of the inner shaft and the sleeve body and the material conveying passage to play a role of flushing so as to prevent the abrasive material from entering the gap between the inner shaft and the sleeve body through the material conveying passage, so that the phenomena of abrasion and clamping stagnation are effectively prevented, the reliability of a product is improved, and meanwhile, the two shunt channels are positioned between the two sealing devices, so that the high-pressure fluid in the two shunt channels can only flow between the two sealing devices along the, the reliability of the product is further improved.
According to a second aspect of the present invention, there is provided a water jet apparatus comprising a cutter head assembly as in any one of the above-described embodiments.
The utility model provides a water jet equipment, including the blade disc assembly of any above-mentioned technical scheme, consequently have this blade disc assembly's whole beneficial effect, no longer give consideration to here.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 shows a schematic structural view of a portion of a cutter head assembly according to an embodiment of the present invention;
figure 2 illustrates a top view of a portion of the cutterhead assembly, as illustrated in figure 1, in accordance with an embodiment of the present invention;
fig. 3 shows a dimensional schematic of a spray head arrangement on a body according to an embodiment of the invention;
fig. 4 shows a schematic view of the cutterhead assembly according to an embodiment of the present invention when acting on a working surface;
fig. 5 shows a schematic structural view of a rotary joint according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:
100 cutter head components, 12 bodies, 14 mounting parts, 16 hobs, 18 fixing seats, 20 mounting holes, 22 spray heads, 24 first protection blocks, 26 second protection blocks, 28 cushion blocks, 32 fastening screws, 34 rotating joints, 36 inner shafts, 38 sleeves, 40 material conveying components, 42 material conveying passages, 44 liquid conveying passages, 46 sealing devices, 46A first sealing devices, 46B second sealing devices, 48 diversion passages, 48A first diversion passages, 48B second diversion passages, 50 holes and 200 working surfaces.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Referring now to fig. 1-5, an impeller assembly 100 and a water jet apparatus provided in accordance with some embodiments of the present invention will be described.
Example one
As shown in fig. 1, 2 and 4, according to an aspect of the present invention, there is provided a cutter head assembly 100, including: the body 12, the hob 16, the fixing seat 18 and the spray head 22, wherein the body 12 is provided with a mounting portion 14.
Specifically, a mounting portion 14 is provided on the body 12, the hob 16 is provided on the body 12 through the mounting portion 14, i.e. the mounting portion 14 is used to mount the hob 16 on the body 12, the fixing seat 18 is provided on the body 12 through the mounting portion 14, i.e. the fixing seat 18 can be provided on the body 12 through the mounting portion 14 that provides the hob 16 on the body 12, and the spray head 22 is provided on the fixing seat 18.
In this embodiment, can set up shower nozzle 22 on body 12 through cooperating with fixing base 18 and the installation department 14 of installation hobbing cutter 16 for the current structure that need not to change body 12 can set up shower nozzle 22 on body 12, avoided need carry out the institutional advancement (like the trompil) to body 12 and just can set up shower nozzle 22 on body 12, and simultaneously, need not to carry out a large amount of modification adjustments to the structure or the intensity of body 12, easy to assemble, be favorable to reduction in production cost, be suitable for popularization and application.
Further, the hob 16 is arranged on the mounting part 14, the fixed seat 18 is arranged on the mounting part 14 through a gap between the hob 16 and the mounting part 14, the spray head 22 is arranged on the fixed seat 18, it is achieved that the hob 16 and the spray head 22 are arranged on the mounting portion 14 simultaneously, and no structural modification of the mounting portion 14 is required, nor is any structural and strength modification of the body 12 required, the spray head 22 can be installed on the existing standardized body 12 by utilizing the fixed seat 18, the operation is simple, the production cost is greatly reduced, at the same time, high-pressure fluid or high-pressure fluid mixed with solids can be sprayed out through the spray head 22 to form a water jet, so that the hob 16 and the water jet work together, and then the rock breaking efficiency and the rock breaking capacity of the cutter head assembly 100 are greatly improved, the working condition requirements of cutting hard rock and extremely hard rock strata can be met, and the application range of the product is further expanded. In particular, water jet cleaning and cutting is a process of impacting an object with a high-speed water stream concentrated in a very small diameter range, breaking up and washing down its surface layer. The water jet is utilized to cut a seam on the tunnel face, a free face is generated in advance, and the thrust required by the hob 16 for breaking rock can be greatly reduced.
Preferably, the installation part 14 can be a hole or an installation frame, namely, the hole or the installation frame for installing the hob 16 is arranged on the body 12, after the hob 16 is installed on the hole or the installation frame, the fixing seat 18 for installing the spray head 22 is installed in a gap between the hob 16 and the hole or the installation frame, and further, the spray head 22 and the hob 16 are simultaneously installed on the body 12, namely, the fixing seat 18 is matched with the hole or the installation frame for installing the hob 16 on the body 12, the spray head 22 can be rapidly arranged on the body 12, the structure and the strength of the body 12 do not need to be modified or adjusted, the operation is convenient, and the production cost is greatly reduced. It will be appreciated that the mounting portion may also be a mounting seat for the roller cutter 16.
Specifically, as shown in fig. 1 and 2, the mounting portion 14 is provided with a hole 50, the hob 16 is mounted on the mounting portion 14 through the hole 50, and the fixing base 18 mounted with the nozzle 22 is mounted in a gap between the hob 16 and the hole 50, so that the nozzle 22 and the hob 16 are simultaneously mounted on the mounting portion 14, that is, the nozzle 22 and the hob 16 are simultaneously disposed on the body.
Example two
As shown in fig. 1, 2, 3 and 4, in one embodiment of the present invention, the cutter head assembly 100 includes: body 12, hobbing cutter 16, fixing base 18 and shower nozzle 22, be provided with installation department 14 on the body 12, wherein, body 12 is discoid, and the quantity of shower nozzle 22 is a plurality of, and a plurality of shower nozzles 22 are circular distribution on body 12, and circular diameter is less than the radius of body 12.
In this embodiment, the body 12 is disc-shaped, the number of the nozzles 22 is plural, the plural nozzles 22 are distributed on the body 12 in a circular shape, that is, the plural nozzles 22 are distributed in a circular area, that is, the area a in fig. 3 represents the area of the body 12 where the nozzles 22 are arranged, the circular area (that is, the area a) is concentric with the disc-shaped body 12, by setting the diameter D of the circle to be smaller than the radius R of the body 12, that is, the radius of the circle to be smaller than half of the radius R of the body 12, the nozzles 22 are arranged between the roller cutters 16 near the rotation axis of the body 12, because the cutting depth of the water jet is inversely proportional to the moving speed of the nozzles 22, when the body 12 rotates, the nozzles 22 near the rotation axis of the body 12 can ensure a larger cutting depth with a lower linear velocity, and further, the cooperative crushing capability of the roller cutters 16 and the water, thereby improving the rock breaking efficiency of the cutter head assembly 100 and ensuring good breaking effect. It will be appreciated that the number and shape of the mounting portions 14 and the nozzles 22 may also be arranged appropriately according to the shape of the body 12, the size of the body 12, and the number of the roller cutters 16 to ensure a better cooperative breaking capacity of the roller cutters 16 and the water jets and a higher rock breaking efficiency.
Specifically, the larger the lancing depth of the water jet, the lower the rock breaking load of the adjacent hob 16, and thus the rock breaking efficiency and capacity are improved, while the lancing depth of the water jet is greatly affected by the moving speed of the nozzle 22, and the faster the speed, the smaller the lancing depth, so that the nozzle 22 is arranged close to the rotation center of the body 12 as much as possible, and the lower linear speed thereof is used to ensure the sufficient lancing depth.
Preferably, the number of the mounting portions 14 is plural, the number of the fixing seats 18 is plural, and the number of the mounting portions 14 is larger than the number of the fixing seats 18.
The quantity through installation department 14 and fixing base 18 is a plurality ofly, a plurality of hobbing cutters 16 set up on body 12 through a plurality of installation departments 14, and the quantity of installation department 14 is greater than the quantity of fixing base 18, fixing base 18 only sets up on partial installation department 14 promptly, make shower nozzle 22 be located between partial hobbing cutter 16, the quantity of shower nozzle 22 is less than the quantity of hobbing cutter 16, avoid the more and extravagant cost of quantity of shower nozzle 22, avoid the quantity of shower nozzle 22 less and can't guarantee good broken rock ability simultaneously. Specifically, the number of the mounting portions 14 and the number of the nozzles 22 can be set reasonably according to the shape of the body 12, the size of the body 12 and the number of the roller cutters 16, so that the roller cutters 16 and the water jets have good cooperative crushing capability and high rock breaking efficiency can be guaranteed.
EXAMPLE III
As shown in fig. 1, 2 and 4, in one embodiment of the present invention, the cutter head assembly 100 includes: the device comprises a body 12, a hob 16, a fixed seat 18, a spray head 22, a first protection block 24 and a second protection block 26, wherein the body 12 is provided with an installation part 14, wherein the first protection block 24 is arranged on the body 12 and is positioned on the peripheral side of the installation part 14; the second protection block 26 is disposed on the first protection block 24 located on the peripheral side of the fixing base 18 and located on the side of the first protection block 24 away from the body 12.
In this embodiment, the first protection block 24 is disposed on the body 12, the first protection block 24 is located on the peripheral side of the mounting portion 14, and can reduce the wear and damage of the working surface 200 to the body 12 by the first protection block 24 when the cutter head assembly 100 is operated, and when the hob 16 is in contact with the working surface 200 (for example, when the cutter head assembly 100 is applied to a tunneling apparatus, the working surface is referred to as a "working surface"), so as to improve the reliability of the body 12, the second protection block 26 is disposed on the first protection block 24 located on the peripheral side of the fixing base 18, and is located on the side of the first protection block 24 away from the body 12, that is, the second protection block 26 is located on the peripheral side of the sprinkler 22 and faces the working surface 200, so as to protect the sprinkler 22 to prevent the sprinkler 22 from being worn or damaged by collision due to the concave-convex surface 200 during the operation of the cutter head assembly 100, and thus prolonging the service life of the sprinkler 22, the reliability of the product is improved, simultaneously, be favorable to adjusting the difference in height that the one side that first protection piece 24 was kept away from to second protection piece 26 and adjacent hobbing cutter 16 through second protection piece 26, and then guarantee that shower nozzle 22 is reasonable towards the perpendicular distance between the one side of working face 200 and the working face 200, through reasonable target distance in order to guarantee good cutting effect promptly. It will be appreciated that, since the further the perpendicular distance between the spray head 22 and the working surface 200 (e.g., the tunnel surface) is, the smaller the cutting depth of the water jet, the operational parameters of the cutter head assembly 100 can be adjusted to further improve the cutting efficiency and ensure good cutting results based on the height difference between the surface of the second protection block 26 away from the first protection block 24 and the adjacent hob 16, i.e., based on the target distance.
Preferably, the first protection block 24 and the second protection block 26 are made of the same material, which is beneficial to saving processing materials and further reducing production cost.
Preferably, the second protection block 26 is connected with the first protection block 24 by welding, and the connection mode is simple and easy to operate, and can ensure the reliability of the connection between the second protection block 26 and the first protection block 24.
Example four
As shown in fig. 1, 2 and 4, in one embodiment of the present invention, the cutter head assembly 100 includes: the body 12 is provided with an installation part 14, wherein the cushion block 28 is arranged on the body 12 and is positioned on one side of the body 12 far away from the first protection block 24, and the fixed seat 18 is connected with the cushion block 28.
In this embodiment, through set up cushion 28 on body 12, cushion 28 is located the body 12 and keeps away from one side of first protection piece 24, be connected with cushion 28 through fixing base 18 and then set up fixing base 18 on installation department 14, make the structure that need not to change the mount pad, also need not to change the structure of body 12, can set up fixing base 18 on body 12 through cushion 28, and then set up shower nozzle 22 on body 12, moreover, the steam generator is simple in structure, and is easy to realize, and easy operation, and be favorable to the installation, and simultaneously, the production cost is reduced, and satisfy the standardized demand of body 12.
Preferably, the spacer 28 is welded to the body 12 in a simple manner, easy to operate and capable of ensuring the reliability of the connection of the spacer 28 to the body 12.
Preferably, the cushion block 28 is provided with a threaded hole, and the fixing seat 18 is provided with a through hole, through which a bolt passes to be matched with the threaded hole, so as to connect the fixing seat 18 with the cushion block 28, and further fix the fixing seat 18 on the mounting portion 14. It will be appreciated that the anchor 18 may be connected to the head block 28 in other ways.
EXAMPLE five
Based on any one of the cutterhead assemblies 100 in the first to fourth embodiments, specifically, as shown in fig. 1, 2 and 4, the fixing seat 18 is provided with a mounting hole 20, the axis of the mounting hole 20 is parallel to the axis of the body 12, and the spray head 22 is arranged on the fixing seat 18 through the mounting hole 20; wherein the spray head 22 can be locked by the mounting hole 20.
In this embodiment, the fixing seat 18 is provided with the mounting hole 20, the axis of the mounting hole 20 is parallel to the axis of the body 12, and the spray head 22 is arranged on the fixing seat 18 through the mounting hole 20, so that when the cutter head assembly 100 works, the theoretical cross section of the water jet sprayed out through the spray head 22 is parallel to the working surface 200, the water jet energy utilization rate is further improved, and the working efficiency and the working capacity of the water jet are improved.
The shower nozzle 22 can be locked through the mounting hole 20, namely the shower nozzle 22 and/or the mounting hole 20 are/is provided with a limiting structure, after the shower nozzle 22 is inserted into the mounting hole 20, the shower nozzle 22 can be locked in the mounting hole 20 by using the limiting structure, the additional locking structure is avoided, the structure is complex, the structure is effectively simplified, meanwhile, the installation process of the shower nozzle 22 is further simplified, and the installation efficiency of the shower nozzle 22 is improved.
Specifically, the spray head 22 can also be fixed in the mounting hole 20 through the fastening screw 32, so that the spray head 22 is locked on the fixing seat 18, the reliability of connection between the spray head 22 and the fixing seat 18 can be ensured, and the reliability of the product is further improved.
Preferably, as shown in fig. 1 and 4, the axes of the two roller cutters 16 located on both sides of the mounting hole 20 and adjacent to the mounting hole 20 are equidistant from the axis of the mounting hole 20, i.e. the spray head 22 is located in the middle between two adjacent roller cutters 16, i.e. in the direction of the rotational axis of the body 12, the distance e between the centre line of the spray head 22 and the centre line of the adjacent roller cutter 16 is equal to half the distance between the centre lines of the adjacent roller cutters 16, so that when the cutter head assembly 100 works, the water jet kerf is positioned in the middle of the tracks of two adjacent hobbing cutters 16, so that the free surface which is formed by the water jet slitting and is beneficial to improving the rock breaking efficiency and the rock breaking capacity of the hobbing cutters 16 is positioned in the middle of the tracks of the two adjacent hobbing cutters 16, the rock breaking efficiency of the cutter head assembly 100 is further improved, and the working condition requirements of hard rock and extremely hard rock strata can be met, meanwhile, the rock breaking capacity is effectively improved, and a good breaking effect is ensured.
Preferably, as shown in fig. 4, the height difference between the side of the second protection block 26 away from the first protection block 24 and the adjacent hob 16 is L, and the range of L is 20mm to 100mm, because in actual construction, the working surface 200 (such as the tunnel surface) is uneven, and the height difference between the side of the second protection block 26 away from the first protection block 24 and the adjacent hob 16 is 20mm to 100mm, that is, the target distance is 20mm to 100mm, it can be effectively avoided that the nozzle 22 is damaged or worn by the working surface 200 due to too small target distance, and it can be avoided that the crushing capability is affected due to the small cutting depth of the water jet due to too large target distance, and the reasonable range of the target distance can effectively prolong the service life of the nozzle 22, and improve the reliability of the product, and at the same time, it is beneficial to further improve the rock breaking efficiency and the rock breaking capability, and ensure a good crushing effect.
EXAMPLE six
As shown in fig. 1 to 4, in an embodiment of the present invention, the cutter head assembly 100 includes: the hob mounting structure comprises a body 12, a hob 16, a fixed seat 18, a nozzle 22, a first protection block 24, a second protection block 26 and a cushion block 28, wherein the body 12 is provided with a mounting part 14, wherein the nozzle 22 comprises a nozzle and is arranged on one side of the fixed seat 18 close to the second protection block 26; the ratio of the diameter of the nozzle to the difference in height between the face of the second protection block 26 remote from the first protection block 24 and the adjacent roller cutter 16 is in the range: 0.01 to 0.05.
In this embodiment, the nozzle 22 includes a nozzle, the nozzle is disposed on one side of the fixing seat 18 close to the second protection block 26, that is, the nozzle is located on one side of the body 12 facing the working surface 200, so that water jet flows through the nozzle and acts on the working surface 200 after being sprayed, and the height difference between one side of the second protection block 26 far away from the first protection block 24 and the adjacent hob 16 is L, the ratio range of the diameter passing through the nozzle and the L is 0.01 to 0.05, so that the water jet sprayed through the nozzle has a large cutting depth, thereby being beneficial to improving the rock breaking efficiency and the rock breaking capacity of the cutter head assembly 100, and meeting the working condition requirements of cutting hard rock and extremely hard rock strata, and further expanding the application range of the product.
Further, the working pressure of the nozzle is not less than 250MPa, the cutting depth of the water jet can be further increased, the utilization rate of the water jet is improved, and the rock breaking efficiency and the rock breaking capacity of the cutter head assembly 100 are further improved. It can be understood that the working pressure of the nozzle can also be reasonably set according to specific working conditions (such as the rock hardness of the working face 200) so as to save energy consumption and reduce use cost while ensuring rock breaking efficiency and rock breaking capacity.
EXAMPLE seven
As shown in fig. 1, 2, 4 and 5, in one embodiment of the present invention, the cutter head assembly 100 includes: body 12, hobbing cutter 16, fixing base 18, shower nozzle 22, first protection piece 24, second protection piece 26, cushion 28 and rotary joint 34 are provided with installation department 14 on the body 12, and shower nozzle 22 includes the nozzle, and wherein, rotary joint 34 sets up the one side of keeping away from first protection piece 24 at body 12, and rotary joint 34 includes: the inner shaft 36 is coaxial with the body 12, and the body 12 rotates to drive the inner shaft 36 to rotate; the sleeve body 38 is sleeved on the inner shaft 36; the material conveying component 40 is arranged on the inner shaft 36 and the sleeve body 38 in a penetrating way, the material conveying component 40 is provided with a material conveying passage 42 for conveying the abrasive material and a liquid conveying passage 44 for conveying high-pressure fluid, and the material conveying passage 42 and the liquid conveying passage 44 are both communicated with the spray head 22.
In this embodiment, a rotary joint 34 is disposed on a side of the body 12 away from the first protection block 24, that is, a side of the body 12 away from the working surface 200, the rotary joint 34 includes an inner shaft 36, a sheath 38 and a material delivery assembly 40, the inner shaft 36 is coaxial with the body 12, the sheath 38 is sleeved on the inner shaft 36, the body 12 drives the inner shaft 36 to rotate when rotating, but the sheath 38 is fixed when the body 12 drives the inner shaft 36 to rotate, the material delivery assembly 40 is disposed through the inner shaft 36 and the sheath 38, the material delivery assembly 40 is provided with a material delivery passage 42 for delivering an abrasive material and a fluid delivery passage 44 for delivering a high-pressure fluid, the material delivery passage 42 and the fluid delivery passage 44 are both communicated with the nozzle 22, so that a water jet ejected from the nozzle 22 is composed of the high-pressure fluid and the abrasive material, and the, and then effectively improve the cutting ability of the water jet, so that the cutter head assembly 100 can meet the working condition requirements of cutting hard rock and extremely hard rock strata, and can ensure good rock breaking ability and rock breaking efficiency, and further expand the application range of the product.
Example eight
As shown in fig. 1, 2, 4 and 5, in one embodiment of the present invention, the cutter head assembly 100 includes: body 12, hobbing cutter 16, fixing base 18, shower nozzle 22, first protection piece 24, second protection piece 26, cushion 28 and rotary joint 34 are provided with installation department 14 on the body 12, and shower nozzle 22 includes the nozzle, and rotary joint 34 includes interior axle 36, cover body 38 and defeated material subassembly 40, and wherein, rotary joint 34 still includes: two sealing devices 46 arranged between the inner shaft 36 and the sheath 38 at intervals in the axial direction of the inner shaft 36; two branch channels 48 are arranged on the sleeve body 38 and positioned between the two sealing devices 46, and the two branch channels 48 are communicated with the gap between the inner shaft 36 and the sleeve body 38.
In this embodiment, the rotary joint 34 further includes two sealing devices 46 and two branch passages 48, specifically, the two sealing devices 46 include a first sealing device 46A and a second sealing device 46B, the two branch passages 48 include a first branch flow passage 48A and a second branch flow passage 48B, the sealing device 46 is arranged between the inner shaft 36 and the jacket 38 at intervals along the axial direction of the inner shaft 36, which effectively ensures the sealing performance and reliability of the connection between the inner shaft 36 and the jacket 38, the two branch flow passages 48 are arranged between the two sealing devices 46 by arranging the two branch flow passages 48 on the jacket 38, that is, the first branch flow passage 48A and the second branch flow passage 48B are arranged between the first sealing device 46A and the second sealing device 46B, and the two branch flow passages 48 are communicated with the gap between the inner shaft 36 and the jacket 38, for injecting high-pressure fluid to both sides of the connection between the inner shaft 36 and the jacket 38 and the delivery passage 42, the device has the advantages that the flushing effect is achieved, abrasive materials are prevented from entering a gap between the inner shaft 36 and the sleeve body 38 through the material conveying passage 42, the abrasion and clamping phenomena are effectively prevented, the reliability of the product is improved, meanwhile, the two shunting channels 48 are located between the two sealing devices 46, high-pressure fluid in the two shunting channels 48 can only flow between the two sealing devices 46 along the axial direction of the inner shaft 36, and the reliability of the product is further improved.
Example nine
As shown in fig. 1 to 5, according to a second aspect of the present invention, there is provided a water jet apparatus including a cutter head assembly 100 as in any one of the above embodiments.
The utility model provides a water jet equipment, including the blade disc subassembly 100 of any one of the above-mentioned embodiments, consequently have this blade disc subassembly 100's whole beneficial effect, no longer describe herein.
Preferably, the water jet device is a TBM. Through the utility model provides a cutter head assembly 100 can utilize abrasive material water jet cutting gap between the 16 trails of hobbing cutter near body 12 gyration axle center, forms the free surface that is favorable to improving 16 broken rock efficiencies of hobbing cutter and ability to under the operating mode on hard rock and extremely hard rock stratum, also can improve the broken rock tunnelling efficiency and the ability of current TBM blade disc greatly.
In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. An impeller assembly, comprising:
the body is provided with an installation part;
the hob is arranged on the body through the mounting part;
the fixing seat is arranged on the body through the mounting part;
the spray head is arranged on the fixed seat.
2. The cutterhead assembly of claim 1,
the body is disc-shaped, the number of the spray heads is multiple, the spray heads are distributed on the body in a circular shape, and the diameter of the circular shape is smaller than the radius of the body;
the quantity of installation department is a plurality of, the quantity of fixing base is a plurality of, just the quantity of installation department is greater than the quantity of fixing base.
3. The cutterhead assembly of claim 2, further comprising:
the first protection block is arranged on the body and is positioned on the peripheral side of the mounting part;
the second protection piece sets up and is located the week side of fixing base on the first protection piece, and is located first protection piece is kept away from one side of body.
4. The cutterhead assembly of claim 3, further comprising:
the cushion block is arranged on the body and located on one side, away from the first protection block, of the body, and the fixing seat is connected with the cushion block.
5. The cutterhead assembly of claim 1,
the fixed seat is provided with a mounting hole, the axis of the mounting hole is parallel to the axis of the body, and the spray head is arranged on the fixed seat through the mounting hole;
wherein the spray head is lockable through the mounting hole.
6. The cutterhead assembly of claim 5,
and the distances between the axes of the two hobs which are positioned at the two sides of the mounting hole and adjacent to the mounting hole and the axis of the mounting hole are equal.
7. The cutterhead assembly of claim 3,
the range of the height difference between one surface of the second protection block, which is far away from the first protection block, and the adjacent hob is 20 mm-100 mm.
8. The impeller assembly of claim 7 wherein said spray head comprises:
the nozzle is arranged on one side, close to the second protection block, of the fixed seat;
the ratio range of the diameter of the nozzle to the height difference between the surface of the second protection block far away from the first protection block and the adjacent hob is as follows: 0.01 to 0.05.
9. The cutterhead assembly of claim 3, further comprising:
the rotary joint is arranged on one side, far away from the first protection block, of the body, and comprises:
the inner shaft is coaxial with the body, and the body rotates to drive the inner shaft to rotate;
the sleeve body is sleeved on the inner shaft;
the material conveying component penetrates through the inner shaft and the sleeve body, the material conveying component is provided with a material conveying passage for conveying abrasive materials and a liquid conveying passage for conveying high-pressure fluid, and the material conveying passage and the liquid conveying passage are communicated with the spray head.
10. The cutterhead assembly of claim 9, wherein the rotary joint further includes:
two sealing devices are arranged between the inner shaft and the sleeve body at intervals along the axial direction of the inner shaft;
and the two shunting channels are arranged on the sleeve body and positioned between the two sealing devices, and the two shunting channels are communicated with a gap between the inner shaft and the sleeve body.
11. A water jet apparatus, characterized by comprising: an impeller assembly according to any one of claims 1 to 10.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921107871.8U CN210460675U (en) | 2019-07-16 | 2019-07-16 | Cutter head assembly and water jet equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921107871.8U CN210460675U (en) | 2019-07-16 | 2019-07-16 | Cutter head assembly and water jet equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230501A (en) * | 2019-07-16 | 2019-09-13 | 中国铁建重工集团股份有限公司 | Cutter head assembly and Water jet equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230501A (en) * | 2019-07-16 | 2019-09-13 | 中国铁建重工集团股份有限公司 | Cutter head assembly and Water jet equipment |
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