CN109339147A - A kind of tooth and toothholder attachment device - Google Patents
A kind of tooth and toothholder attachment device Download PDFInfo
- Publication number
- CN109339147A CN109339147A CN201811406568.8A CN201811406568A CN109339147A CN 109339147 A CN109339147 A CN 109339147A CN 201811406568 A CN201811406568 A CN 201811406568A CN 109339147 A CN109339147 A CN 109339147A
- Authority
- CN
- China
- Prior art keywords
- toothholder
- tooth
- hole
- locking sleeve
- screw thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
- E02F9/2816—Mountings therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
- E02F9/2816—Mountings therefor
- E02F9/2833—Retaining means, e.g. pins
- E02F9/2841—Retaining means, e.g. pins resilient
Abstract
The present invention relates to a kind of teeth and toothholder attachment device, belong to dredging work equipment technical field, including tooth, toothholder and connection component, are inserted in toothholder assembly in place under state in tooth, and tooth and toothholder form the hollow structure of a placement connection component；Connection component includes locking sleeve, connection bolt, pushing tow ring, spring, top and closing piece；The first stepped hole is equipped with inside locking sleeve, locking sleeve leading exterior surface is equipped with external screw thread, it comes directly towards rear end and is equipped with the second stepped hole, second stepped hole is equipped with internal screw thread and cooperates with external screw thread on bolt is connect, pushing tow ring, spring and top are sequentially arranged on connection bolt, from the beginning connection bolt in side insertion locking sleeve, is equipped with ladder hole inside closing piece, ladder hole is equipped with internal screw thread and cooperates with locking sleeve external screw thread, and top can be with toothholder stress face contact across ladder hole.The present invention solves existing the problems such as connecting unreliable, dismounting difficulty, toothholder abrasion during tooth is installed and used with toothholder.
Description
Technical field
The invention belongs to dredging work equipment technical fields, more particularly to one kind for cutter suction dredger in Dredging Field
With reamer tooth in connection of the connection, trailing suction hopper dredger rake teeth on reamer toothholder on drag head toothholder, backhoe dredger shovel
Tooth connects dress with toothholder in the tooth of the connection of connection and land excavator teeth on scraper bowl toothholder on scraper bowl toothholder etc.
It sets.
Background technique
In Dredging Field, cutter suction dredger excavates underwater soil, rock etc. using reamer, and the soil dug down is twisting
Knife internal mix sucks simultaneously dispatch to specified region by dredge pump at mud and by the way that the suction inlet inside reamer is arranged in.
When cutter suction dredger excavates pan soil, it is common practice to reamer tooth be installed on reamer tool arm, effect is benefit
With the effect of breaking ground of reamer tooth, reduce reamer excavating resistance, improves digging efficiency.
Reamer includes cutter ring, tool arm and propeller boss, and propeller boss is threadably connect with mangler shaft.Under normal circumstances, reamer tooth
It is connected by attachment device with the toothholder being welded on tool arm.When dredging, reamer driving device drives reamer to revolve by mangler shaft
Turn, the reamer tooth being mounted on tool arm constantly excavates underwater soil with the rotation and roll motion of reamer.But in reality
In border installation and use process, the connection of reamer tooth and toothholder there are unreliable, dismounting is difficult, and using when easily cause toothholder
The problems such as abrasion.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of teeth and toothholder attachment device, to solve or improve
The problems such as connection present in the installation and use process of tooth and toothholder in the past is unreliable, dismounting is difficult, toothholder abrasion.
The invention is realized in this way a kind of tooth and toothholder attachment device, including tooth, toothholder and connection component, the tooth
Rear portion has cavity, and the inner cavity of the tooth cavity body accommodates toothholder front, makes the insertion that cooperates in the insertion tooth inner cavity of toothholder front,
And it is bonded by connection component；It is characterized in that, the upper surface at the tooth rear portion is equipped with protrusion, the table of going forward of the protrusion
Face offers the square through hole for passing to tooth inner cavity, and the upper rear surface of the protrusion offers the circular through hole for passing to tooth inner cavity, institute
It states toothholder upper surface and offers the groove one cooperated with square through hole and circular through hole, be inserted in toothholder assembly shape in place in tooth
Under state, the square through hole and circular through hole of tooth and the groove one of toothholder form the hollow structure for being used to place connection component,
And then it is formed in the constraint of the off-direction of toothholder and tooth；
The connection component includes locking sleeve, connection bolt, pushing tow ring, spring, top and closing piece；The locking sleeve
Inside offers the first stepped hole, and the leading exterior surface of the locking sleeve is equipped with external screw thread, and the rear end of the top offers
The major diameter section limited spring of second stepped hole, second stepped hole moves axially direction, the path section of second stepped hole
It is equipped with internal screw thread and cooperates with the external screw thread connecting on bolt, the pushing tow ring, spring and top pass sequentially through socket or spiral shell
Line screw-in is mounted on connection bolt, and the connection bolt is described from the first stepped hole of bolt head side insertion locking sleeve
The path section of first stepped hole is inserted into one section of bolt head side connection bolt, the major diameter section limitation pushing tow ring of first stepped hole with
Spring axial direction moving direction, ladder hole is offered inside the closing piece, and the major diameter section of the ladder hole is equipped with internal screw thread
And screw thread pair is constituted with the external screw thread cooperation on locking sleeve, the top can be with the stress of toothholder groove one across ladder hole
Face contact.
In the above-mentioned technical solutions, it is preferred that it is equipped with clamp nut between the bolt head and pushing tow ring of the connection bolt,
The clamp nut, which is threaded into, to be mounted on connection bolt, and effect is one that pushing tow ring, spring are fixed on to connection bolt
Positioning is set, and the clamp nut is inserted into the path section of the first stepped hole.
In the above-mentioned technical solutions, it is preferred that the back end outer surface of the locking sleeve offers several radial countersunk heads
Screw hole, the radial direction countersunk screw holes are interior to install positioning screw, and the positioning screw is being detached from for connecting bolt and locking sleeve
The constraint in direction.
In the above-mentioned technical solutions, it is preferred that the front end of the top is hemispherical, makes to come directly towards the side to toothholder acting surface
To forever be its normal direction.
In the above-mentioned technical solutions, it is preferred that described due to the restriction of the structure snd size of tooth, toothholder and connection component
Ladder hole is eccentric ladder hole.
In the above-mentioned technical solutions, it is preferred that the two sides of the protrusion are equipped with notch, convenient for picking and placing closing piece.
In the above-mentioned technical solutions, still more preferably, the two sides of the closing piece corresponding to the notch are corresponding
Position opens up fluted two, and the effect of this groove two is that more convenient closing piece takes out from reamer tooth square groove.
In the above-mentioned technical solutions, it is preferred that the locking sleeve, connection bolt, clamp nut, pushing tow ring, spring, top
Head, closing piece and positioning screw are made by seawater corrosion resistance metal material, prevent from working and being corroded in the seawater for a long time.
Compared with prior art, the advantages and positive effects of the present invention are:
1, tooth of the invention is not easily to fall off during the work time, and connection is reliable, efficiently solves other connection types and brings
Tooth installation, disassembly difficult problem, reduce person works' intensity, while solving other connection types band in the construction process
The toothholder wear problem come；
2, the connection of tooth and toothholder of the invention is faster efficiently, constructs and stagnates caused by reducing due to changing tooth, improves
The effective time utilization rate of dredging work, it is economical and practical, advantageously reduce engineering cost；
3, connection component of the invention may be reused, the relative reduction cost of manufacture of connection component；
4, tooth of the invention connects with toothholder with the reamer tooth that toothholder attachment device can be used for cutter suction dredger, harrows to inhale and dredge
The connection of rake teeth and toothholder of ship, the connection of the teeth of backhoe dredger and toothholder and all kinds of land excavators tooth and
The fields such as the connection of toothholder, it is applied widely.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the reamer tooth that the embodiment of the present invention provides and toothholder attachment device；
Fig. 2 is the structural schematic diagram of the reamer tooth that the embodiment of the present invention provides and toothholder assembly；
Fig. 3 is the perspective view for the reamer tooth that the embodiment of the present invention provides；
Fig. 4 is the top view for the reamer tooth that the embodiment of the present invention provides；
Fig. 5 is the cross-sectional view for the reamer tooth that the embodiment of the present invention provides；
Fig. 6 is the perspective view for the toothholder that the embodiment of the present invention provides；
Fig. 7 is the top view for the toothholder that the embodiment of the present invention provides；
Fig. 8 is the cross-sectional view for the toothholder that the embodiment of the present invention provides；
Fig. 9 is the connection component assembly structure diagram one that the embodiment of the present invention provides；
Figure 10 is the connection component assembly structure diagram two that the embodiment of the present invention provides；
Figure 11 is that the closing piece for the connection component that the embodiment of the present invention provides is packed into the structural schematic diagram of square groove；
Figure 12 is the structural schematic diagram after the connection component that the embodiment of the present invention provides is installed；
Figure 13 is the perspective view for the locking sleeve that the embodiment of the present invention provides；
Figure 14 is the cross-sectional view for the locking sleeve that the embodiment of the present invention provides；
Figure 15 is the structural schematic diagram for the connection bolt that the embodiment of the present invention provides；
Figure 16 is the perspective view for the top that the embodiment of the present invention provides；
Figure 17 is the cross-sectional view for the top that the embodiment of the present invention provides；
Figure 18 is the perspective view for the closing piece that the embodiment of the present invention provides；
Figure 19 is the main view for the closing piece that the embodiment of the present invention provides.
In figure: 1- toothholder, 11- groove one, 12- front end face, the first mating surface of 13-, the second mating surface of 14-, 15- third are matched
Conjunction face, the 4th mating surface of 16-, 2- tooth, 21- protrusion, 211- square through hole, 212- circular through hole, 213- notch, 3- lock sleeve
Pipe, the first stepped hole of 31-, 32- radial direction countersunk screw holes, 4- connection bolt, 5- clamp nut, 6- pushing tow ring, 7- spring, the top 8-
Head, the second stepped hole of 81-, 9- positioning screw, 10- closing piece, 101- ladder hole, 102- groove two.
Specific embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and cooperate attached drawing
Detailed description are as follows:
Embodiment
Details of the invention is discussed in detail by taking the connection of reamer tooth and toothholder as an example below.
Refering to fig. 1~Figure 19, the present embodiment provides a kind of teeth and toothholder attachment device, including tooth 2, toothholder 1 and connection group
Part, 2 rear portion of tooth have cavity, and the inner cavity of 2 cavity of tooth accommodates 1 front of toothholder, makes to cooperate in the insertion tooth inner cavity of toothholder front
Insertion, and be bonded by connection component；The upper surface at 2 rear portion of tooth is equipped with protrusion 21, and the protrusion in the present embodiment is trigone
Rod structure, is also possible to round or other similar shapes, and the upper front surface of protrusion 21 offers the square through hole for passing to tooth inner cavity
211, it is rectangular through holes in the present embodiment, is also possible to other similar shapes, the upper rear surface of protrusion 21, which offers, passes to tooth
The circular through hole 212 of inner cavity, 1 upper surface of toothholder offer the groove 1 cooperated with square through hole and circular through hole, this
Groove one in embodiment is triangular prism shape, is also possible to the slot of other similar shapes, is inserted in the assembly of toothholder 1 in place in tooth 2
Under state, the square through hole 211 and circular through hole 212 of tooth 2 and the groove 1 of toothholder 1 form one for placing connection component
Hollow structure, and then be formed in the constraint of the off-direction of toothholder and tooth.
Connection component includes locking sleeve 3, connection bolt 4, clamp nut 5, pushing tow ring 6, spring 7, top 8 and closing piece
10；The first stepped hole 31 is offered inside locking sleeve 3, the purpose is to be packed into the parts such as connection bolt, pushing tow ring and spring.Lock
The leading exterior surface of fixed pipe 3 is equipped with external screw thread, and the internal screw thread of the ladder hole in this male thread portion and closing piece constitutes screw thread
It is secondary.For convenience of the turn of locking sleeve, the rear end of locking sleeve is set as outer hexagon shape.The back end outer surface of locking sleeve 3 is opened
If two radial countersunk screw holes radial symmetrics, radial countersunk screw holes 32 are interior to install positioning screw there are two radial countersunk screw holes 32
9, positioning screw is for connecting bolt and locking sleeve in the constraint of off-direction.The front end of top 8 is hemispherical, this part is
With toothholder contact portion.The rear end of top 8 offers the second stepped hole 81,7 axis of major diameter section limited spring of the second stepped hole 81
To moving direction, the path section of the second stepped hole 81 is equipped with internal screw thread and cooperates with the external screw thread connecting on bolt 4, for convenience
Processing is scabbled with the installation for connecting bolt 4, the four direction part of 8 rear portion outer round surface of top in top 8.Clamp nut 5, top
Throw-out collar 6, spring 7 and top 8 pass sequentially through be threaded into or be socketed be mounted on connect bolt 4 on, the effect of clamp nut 5 be by
Pushing tow ring 6, spring 7 are fixed on the certain position of connection bolt 4, this connection bolt is nonstandard bolt, and bolt head is to be provided with
The cylindrical shape of hexagonal inner hole.Bolt 4 is connected from the first stepped hole 31 of bolt head side insertion locking sleeve, the first stepped hole
The one section of connection bolt and clamp nut 5 of 31 path section insertion bolt head side, the major diameter section of the first stepped hole 31 limit pushing tow
Ring 6 and spring 7 move axially direction.7 both ends of spring are simultaneously tight, polish, and the effect of this spring is to maintain connection component to reamer tooth
With the tensile force of toothholder.In the present embodiment the shape of closing piece 10 be cuboid, be also possible to square, inside offer ladder
Through-hole 101, due to the restriction of the structure snd size of tooth, toothholder and connection component, which is set as eccentric ladder hole, rank
The major diameter section of terraced through-hole 101 is equipped with internal screw thread and constitutes screw thread pair with the external screw thread cooperation on locking sleeve 3, the present embodiment
Top is class " convex " font, can be cooperated with ladder hole, and top 8 passes through ladder hole 101 can be with the stress of toothholder groove 1
Face contact.
1 front of toothholder of the present embodiment includes front end face 12, the first mating surface 13, the second mating surface 14, third mating surface
15 and the 4th mating surface 16, toothholder assembly is inserted in place under state in tooth, each mating surface of toothholder front and pair of tooth inner cavity
Inner surface is answered to fit, there are certain intervals between toothholder front end face bottom surface corresponding with tooth inner cavity.In knife, tooth use process
It due to long-term impact and abrasion, can be loosened in each mating surface of tooth and toothholder, if staying gap, in the benefit of spring
It repays under effect, tooth can move certain distance and keep the fit-state with toothholder along toothholder is central axial.If not staying gap,
Then tooth is immovable in axial direction, so that compensating action cannot be generated.
Equal arc transition, each mating surface edge between each adjacent mating surface of toothholder 1 and between each mating surface and front end face
Toothholder central axial direction gradually taper up from back to front, the installing and dismounting of be more convenient in this way toothholder and tooth.
The reamer tooth rear portion of the present embodiment is the installation section with toothholder, inside and outside for approximate truncated rectangular pyramids shape, Mei Gexiang
By arc transition between adjacent side, terrace with edge cross sectional shape is approximate isosceles trapezoid, inside and outside reamer tooth between corresponding edge table top
Apart from roughly equal；Correspondingly, the front of toothholder is that part is matched with reamer tooth, and outer surface is truncated rectangular pyramids shape, every
By arc transition between a adjacent side, terrace with edge cross sectional shape is approximate isosceles trapezoid.Reamer front tooth part is to excavate part, can
Different shapes is designed to according to different excavation soil property types, and toothholder rear portion is the coupling part with reamer tool arm, which can
According to requiring to be designed to different planforms, generally it is connect by welding with reamer tool arm.
As preferred embodiment, the two sides of protrusion 21 are equipped with notch 213, convenient for picking and placing closing piece.
As further preferred embodiment, the two sides corresponding position of closing piece 10 corresponding with notch 213 offers recessed
Groove two is set as arc-shaped in this implementation by slot 2 102, and two width of groove is 2mm~6mm, is also possible to other approximate shapes,
The effect of this groove two is that closing piece is facilitated to take out from reamer tooth fluting.
As preferred embodiment, locking sleeve 3, connection bolt 4, clamp nut 5, pushing tow ring 6, spring 7, top 8, lock
Block 10 and positioning screw 9 are made by seawater corrosion resistance metal material.More specifically, locking sleeve 3 can by general structural steel, no
Rust steel, copper alloy or the production of other similar materials, connection bolt 4 can be made by general structural steel, stainless steel or metalloid, be pressed
Tight nut 5 can be made by carbon steel, stainless steel or similar material, and pushing tow ring 6 can be made by carbon steel, stainless steel or similar material, bullet
Spring 7 can be made by carbon steel, stainless steel or similar material, and top 8 can be made by steel alloy, high-strength stainless steel or metalloid,
Closing piece 10 by general structural steel, stainless steel, aluminium alloy or other similar materials make, positioning screw 9 can by carbon steel, stainless steel or
Similar material production.
The present invention is in specific installation, using following steps:
Reamer tooth is installed on toothholder:
With reference to Fig. 2, when installing reamer tooth on toothholder, first by the cavity of reamer tooth 2 along the public of reamer tooth and toothholder
It designs axis and is directed at 1 stem of toothholder, reamer tooth 2 is inserted in toothholder 1, due to corresponding matching surface outside reamer tooth cavity and toothholder
For conical by its shape, when toothholder reaches reamer tooth inside certain position, reamer tooth and each mating surface of toothholder fit, reamer tooth edge
Installation direction no longer move, indicate reamer tooth assembly in place, there are certain with toothholder top for reamer tooth inner tip at this time
Gap (in Fig. 2 mark Y at).
After reamer tooth is installed in place on toothholder, reamer tooth and toothholder upper position form a hollow structure, in this
Hollow structure is used to be packed into connection component.
The assembling of connection component:
With reference to Fig. 9, first by clamp nut 5, pushing tow ring 6 and spring 7 on connection bolt 4, and will be pushed up by screw thread
First 8 connect with connection bolt 4, rotatably compress nut 5 for 7 pre-pressing of spring and form an overall structure, spring is by freely growing
Degree precompressed is condensed to shown length a.
With reference to Figure 10, by said modules from the first stepped hole 31 of bolt head side insertion locking sleeve 3, when connection bolt
When head reaches the bottom position of the first stepped hole of locking sleeve, positioning screw 9 is screwed in the radial countersunk screw holes of locking sleeve
It is connect to which bolt 4 will be connected with locking sleeve 3 in 32.
Connection component is installed:
With reference to Figure 11 and Figure 12, closing piece 10 is put into the square groove of reamer tooth and toothholder composition, by above-mentioned assembled lock
Fixed pipe 3, connection bolt 4, clamp nut 5, pushing tow ring 6, spring 7 and top upper rear surface of 8 components from reamer tooth protrusion 21
Circular through hole 212 in be inserted into the ladder hole 101 in closing piece 10, by spiral shell in 3 external screw thread of locking sleeve and closing piece 10
Screw thread pair transmission effect between line, using spanner rotary locking cover pipe 3, since the movement of closing piece 10 is limited by square groove, locking
Casing 3 is moved forward by the screw thread pair formed with closing piece 10, and by 6 holddown spring 7 of pushing tow ring, (spring is long while mobile
Degree is become b) by a, and compressed elastic force is transmitted to top 8 by spring 7, and is applied on toothholder stress surface (figure by top 8
F1 in 12), meanwhile, reaction force is applied to reamer tooth 2 by top 8, spring 7, locking sleeve 3 and closing piece 10 again by stress surface
Upper (F2 in Figure 12), in this way, the equilibrium principle according to power links together reamer tooth and toothholder.
The disassembly of connection component and reamer of the invention:
The disassembly and installation mode of connection component is on the contrary, reversely turn locking sleeve 3 first with spanner, locking sleeve exists
It is moved backward in closing piece by screw thread, spring 7 loses the active force to top 8 after gradually extending, continue reversely to turn lock sleeve
Pipe 3, top 8 will be detached from 1 stress surface of toothholder and remove from closing piece 10 together with bolt 4 is connect, when top 8 and toothholder 1
After stress surface is detached from, the active force between the reamer tooth and toothholder that formed by the effect between 10 screw thread pair of locking sleeve 3 and closing piece
Also it disappears therewith.
By the component being connect with locking sleeve after being taken out in the circular hole of reamer tooth rear portion, then closing piece taken out from square groove,
Reamer tooth is removed from toothholder finally, completes the disassembly process of reamer.
The particular technique parameter that this programme is implemented is as follows:
Reamer tooth:
With reference to Fig. 3~Fig. 5, front surface opens rectangular through holes to reamer tooth inner cavity, through-hole length on reamer tooth convex portion
For 25mm~55mm, width is 20mm~40mm, and wall thickness is 5mm~10mm inside and outside through-hole.
It is 15mm~30mm through-hole, center line and horizontal line angle that rear surface, which is provided with diameter, on reamer tooth convex portion
It is 25 °~45 °, center line is 15mm~30mm away from reamer tooth convex portion upper surface.
Toothholder:
With reference to Fig. 6~Fig. 8, after reamer tooth is installed in place with toothholder, one bottom surface of toothholder groove is away from the aperture of reamer tooth rear portion
Center line distance is 12mm~22mm.
Closing piece:
With reference to Figure 18 and Figure 19, closing piece is rectangular shape, and the length is 26mm~56mm, width is 21mm~52mm,
Height 27mm~52mm, closing piece internal whorl bore dia 20mm~40mm, screw thread centerline hole is away from closing piece upper surface distance 15mm
~30mm.
Locking sleeve:
With reference to Figure 13 and Figure 14, locking sleeve external thread diameter is 20mm~40mm, internal openings diameter be 10mm~
25mm, rear portion hexagon diagonal distance are 12mm~20mm, and radial countersunk screw holes diameter is M3~M4 in the circumferential direction.
Connect bolt:
With reference to Figure 15, bolt thread diameter M5~M10 is connected, reach 30mm~50mm, bolt head diameter 8mm~
18mm, hexagonal opposite side distance is 5mm~8mm in head.
Clamp nut:
The diameter of thread is M5 to M10.
Pushing tow ring:
Pushing tow ring outside diameter 15mm~22mm, interior circular diameter 5mm~10mm, thickness 4mm~8mm.
Spring:
Length 15mm~30mm, outer diameter 12mm~20mm, spring wire diameter 3mm~5mm.
Top:
With reference to Figure 16 and Figure 17, top total length is 25mm~40mm, front round end diameter 10mm~20mm, rear portion four directions
Opposite side distance 15mm~30mm, internal whorl bore dia M5~M10.
Positioning screw: the diameter of thread is M3 to M4.
In the description of the present invention, it should be noted that the instruction such as term " on ", "lower", "front", "rear", "inner", "outside"
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment, or some or all of the technical features are equal
Replacement, and these are modified or replaceed, the model for technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (8)
1. a kind of tooth and toothholder attachment device, including tooth, toothholder and connection component, the tooth rear portion has cavity, the tooth cavity
The inner cavity of body accommodates toothholder front, makes the insertion that cooperates in the insertion tooth inner cavity of toothholder front, and connect by the way that connection component is firm
It connects；It is characterized in that, the upper surface at the tooth rear portion is equipped with protrusion, the upper front surface of the protrusion, which offers, passes to tooth inner cavity
Square through hole, the upper rear surface of the protrusion offer the circular through hole for passing to tooth inner cavity, and the toothholder upper surface offers one
It is a to be inserted in toothholder assembly in place under state in tooth with square through hole and groove one that circular through hole cooperates, the square through hole of tooth and
The groove one of circular through hole and toothholder forms one for placing the hollow structure of connection component, and then is formed in toothholder and tooth
The constraint of off-direction；
The connection component includes locking sleeve, connection bolt, pushing tow ring, spring, top and closing piece；Inside the locking sleeve
The first stepped hole is offered, the leading exterior surface of the locking sleeve is equipped with external screw thread, and the rear end of the top offers second
Stepped hole, the major diameter section limited spring of second stepped hole move axially direction, set in the path section of second stepped hole
There is internal screw thread and cooperate with the external screw thread connecting on bolt, the pushing tow ring, spring and top pass sequentially through socket or screw thread rotation
Entering to be mounted on connection bolt, the connection bolt is from the first stepped hole of bolt head side insertion locking sleeve, and described first
The path section of stepped hole is inserted into one section of bolt head side connection bolt, the major diameter section limitation pushing tow ring and spring of first stepped hole
Move axially direction, offer ladder hole inside the closing piece, the major diameter section of the ladder hole be equipped with internal screw thread and with
External screw thread cooperation on locking sleeve constitutes screw thread pair, and the top can connect across ladder hole with the stress surface of toothholder groove one
Touching.
2. a kind of tooth according to claim 1 and toothholder attachment device, which is characterized in that the bolt head of the connection bolt
Clamp nut is equipped between pushing tow ring, the clamp nut, which is threaded into, to be mounted on connection bolt, and the clamp nut is inserted
In the path section for entering the first stepped hole.
3. a kind of tooth according to claim 2 and toothholder attachment device, which is characterized in that outside the rear end of the locking sleeve
Surface offers several radial countersunk screw holes, installs positioning screw in the radial direction countersunk screw holes, the positioning screw is used for
Bolt and locking sleeve are connected in the constraint of off-direction.
4. a kind of tooth according to claim 1 and toothholder attachment device, which is characterized in that the front end of the top is hemisphere
Shape.
5. a kind of tooth according to claim 1 and toothholder attachment device, which is characterized in that the ladder hole of the closing piece is
Eccentric ladder hole.
6. a kind of tooth according to claim 1 and toothholder attachment device, which is characterized in that the two sides of the protrusion are equipped with
Notch.
7. a kind of tooth according to claim 6 and toothholder attachment device, which is characterized in that corresponding with the notch described
The two sides corresponding position of closing piece opens up fluted two.
8. a kind of tooth according to claim 3 and toothholder attachment device, which is characterized in that the locking sleeve, connection spiral shell
Bolt, clamp nut, pushing tow ring, spring, top, closing piece and positioning screw are made by seawater corrosion resistance metal material, prevent from growing
Phase works in the seawater and is corroded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811406568.8A CN109339147A (en) | 2018-11-23 | 2018-11-23 | A kind of tooth and toothholder attachment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811406568.8A CN109339147A (en) | 2018-11-23 | 2018-11-23 | A kind of tooth and toothholder attachment device |
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| CN109339147A true CN109339147A (en) | 2019-02-15 |
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| CN201811406568.8A Pending CN109339147A (en) | 2018-11-23 | 2018-11-23 | A kind of tooth and toothholder attachment device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700345A (en) * | 2019-11-15 | 2020-01-17 | 中国船舶重工集团公司第十二研究所 | Dredging reamer tooth system |
| CN113075128A (en) * | 2021-04-06 | 2021-07-06 | 武汉佰力博科技有限公司 | Probe mechanism and variable-temperature vacuum probe platform |
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| CN205111157U (en) * | 2015-11-05 | 2016-03-30 | 中核(天津)科技发展有限公司 | Quick closing device of self -interacting |
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| CN200955165Y (en) * | 2006-09-26 | 2007-10-03 | 宁波浙东精密铸造有限公司 | Fitting structure of bucket gear and gear seat |
| JP2010265997A (en) * | 2009-05-15 | 2010-11-25 | Dome Co Ltd | Screw lock mechanism and shock absorber using the same |
| CN202974028U (en) * | 2012-12-20 | 2013-06-05 | 黄幼华 | No-scale pulse silt-removing water distribution device of water cycle cooling tower |
| CN205111157U (en) * | 2015-11-05 | 2016-03-30 | 中核(天津)科技发展有限公司 | Quick closing device of self -interacting |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110700345A (en) * | 2019-11-15 | 2020-01-17 | 中国船舶重工集团公司第十二研究所 | Dredging reamer tooth system |
| CN113075128A (en) * | 2021-04-06 | 2021-07-06 | 武汉佰力博科技有限公司 | Probe mechanism and variable-temperature vacuum probe platform |
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