CN107552426A - A kind of derusting device - Google Patents
A kind of derusting device Download PDFInfo
- Publication number
- CN107552426A CN107552426A CN201710760986.6A CN201710760986A CN107552426A CN 107552426 A CN107552426 A CN 107552426A CN 201710760986 A CN201710760986 A CN 201710760986A CN 107552426 A CN107552426 A CN 107552426A
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- China
- Prior art keywords
- screw
- rust
- tongses
- derusting
- polished rod
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Abstract
The invention discloses a kind of derusting device, belongs to marine machinery field.Derusting device includes:Mounting seat, actuator, screw rod, polished rod, first rust-removing tongses and the second rust-removing tongses, polished rod is fixedly mounted in mounting seat, screw rod is installed in rotation in mounting seat, screw rod is arranged parallel to polished rod, one end periphery wall of screw rod is provided with the first thread segment, the other end periphery wall of screw rod is provided with the second thread segment, first thread segment is oppositely oriented with the second thread segment, first rust-removing tongses are provided with the first screw and the first slide opening, first screw and the first thread segment screw thread coordinate, first slide opening is slidably matched with polished rod, second rust-removing tongses are provided with the second screw and the second slide opening, second screw and the second thread segment screw thread coordinate, second slide opening is slidably matched with polished rod, actuator is fixedly mounted in mounting seat, the output shaft of actuator is connected with screw drive.The present invention solves the problems, such as that the brake disc of roller is got rusty.
Description
Technical field
The invention belongs to marine machinery field, more particularly to a kind of derusting device.
Background technology
Winch is as the necessary equipment on a kind of large ship, and it mainly includes roller and brake, by being wrapped in rolling
Steel wire rope dragging object on cylinder rides the sea.In winch dragging object navigation, it is necessary to by brake by roller locking,
To prevent roller from being rotated because of outer load power.Two friction plates are generally pressed on roller by conventional brake respectively by hydraulic cylinder
In brake disc, so as to realize the braking of roller using the frictional force between friction plate and brake disc.
However, because winch is usually placed on deck plane, so working environment is very moist, brake disc is usually got rusty,
Once brake disc is got rusty, then the frictional force between brake disc and friction plate will decline to a great extent, and cause brake can not locking rolling
Cylinder, produces serious potential safety hazard.
The content of the invention
In order to solve the problems, such as that the brake disc of roller is got rusty, the embodiments of the invention provide a kind of derusting device.The skill
Art scheme is as follows:
The embodiments of the invention provide a kind of derusting device, the derusting device includes:Mounting seat, actuator, screw rod, light
Bar, the first rust-removing tongses and the second rust-removing tongses, the polished rod are fixedly mounted in the mounting seat, and the screw rod is rotatably mounted
In the mounting seat, the screw rod is arranged parallel to the polished rod, and one end periphery wall of the screw rod is provided with first
Thread segment, the other end periphery wall of the screw rod are provided with the second thread segment, first thread segment and second thread segment
It is oppositely oriented, first rust-removing tongses are provided with the first screw and the first slide opening, first screw and first screw thread
Section screw thread coordinates, and first slide opening is slidably matched with the polished rod, and second rust-removing tongses are provided with the second screw and second
Slide opening, second screw coordinate with the second thread segment screw thread, and second slide opening is slidably matched with the polished rod, described
Actuator is fixedly mounted in the mounting seat, and the output shaft of the actuator is connected with the screw drive.
In a kind of implementation of the present invention, the mounting seat includes two bearings, and two bearings are spaced
Arrangement, the both ends of the screw rod are rotationally inserted on two bearings respectively, and the both ends of the polished rod are fixed respectively to insert
On two bearings.
In another implementation of the present invention, the bearing includes installing plate and at least two support bars, the spiral shell
The both ends of bar are rotationally inserted on two installing plates respectively, and fixation is inserted into two institutes respectively at the both ends of the polished rod
State on installing plate, each support bar, which is respectively separated, to be fixed on each self-corresponding installing plate.
In another implementation of the present invention, the derusting device also includes two the first mounting assemblies, two institutes
It is corresponding with the both ends of the screw rod respectively to state the first mounting assembly, two first mounting assemblies include the first end cap, the
One snap ring and bearing, the shaft shoulder is equipped with the both ends periphery wall of the screw rod, the first mounting hole is equipped with two bearings,
Restraining position ring block is all provided with the inside of the internal perisporium of each first mounting hole, for the first mounting assembly any one described, the axle
Hold and be rotatably arranged in first mounting hole, the bearing and first snap ring are set in the outer of the screw rod
On perisporium, the inner ring of the bearing is folded between first snap ring and the shaft shoulder, and first end cap is arranged on corresponding
First mounting hole outside on, the outer ring of the bearing is folded between first end cap and the spacing ring.
In another implementation of the present invention, each first end, which covers, is equipped with locating ring, each described fixed
Position ring is inserted into each self-corresponding first mounting hole.
In another implementation of the present invention, the derusting device also includes two the second mounting assemblies, two institutes
It is corresponding with the both ends of the polished rod respectively to state the second mounting assembly, two second mounting assemblies are including the second end cap and admittedly
Determine part, the second mounting hole is equipped with two bearings, the both ends of the polished rod are inserted into each self-corresponding described respectively
In two mounting holes, for the second mounting assembly any one described, second end cap is arranged on corresponding second mounting hole
Outside on, second end cap is fixed together by the fixture and the polished rod.
In another implementation of the present invention, second mounting assembly also includes the second snap ring, second card
Ring set is on the periphery wall of the polished rod, and second snap ring on the inside of corresponding second mounting hole with offseting.
In another implementation of the present invention, derusting is equipped with first rust-removing tongses and second rust-removing tongses
Part, the derusting part on the derusting part and second rust-removing tongses on first rust-removing tongses are positioned opposite.
In another implementation of the present invention, the derusting part is disk-like structure part.
In another implementation of the present invention, the side of the derusting part is provided with counterbore, is fitted with the counterbore
Screw, the derusting part are fixed on the first rust-removing tongses or the second rust-removing tongses by the screw.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is:
In the rust stain in the brake disc for removing roller by derusting device, actuator drive screw turns, due to first
Rust-removing tongses and the second rust-removing tongses coordinate with screw flight, and are slidably matched with polished rod so that the first rust-removing tongses and second remove
Rust pincers move toward one another, so as to being clamped to brake disc, during brake disc rotates with roller, pass through brake disc and the
Frictional force between one rust-removing tongses and the second rust-removing tongses so that the rust stain in brake disc is wiped, it is achieved thereby that to brake disc
The removing of upper rust stain.After the completion of rust stain is removed, actuator drive screw rotates backward so that the first rust-removing tongses and the second derusting
Pincers are backwards to moving, so that derusting device does not interfere with the normal work of roller.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the sectional view of derusting device provided in an embodiment of the present invention;
Fig. 2 is the operating diagram of derusting device provided in an embodiment of the present invention;
Fig. 3 is the side view of derusting device provided in an embodiment of the present invention;
Fig. 4 is the partial sectional view of derusting device provided in an embodiment of the present invention;
Fig. 5 is the partial sectional view of derusting device provided in an embodiment of the present invention;
Each symbol represents that implication is as follows in figure:
1- mounting seats, 11- bearings, 111- installing plates, 112- support bars, the mounting holes of 113- first, 114- spacing rings, 115-
Second mounting hole, 2- actuators, 3- screw rods, the thread segments of 31- first, the thread segments of 32- second, the 33- shaft shoulders, 4- polished rods, 51- first
Rust-removing tongses, the rust-removing tongses of 52- second, 53- derusting parts, the mounting assemblies of 6- first, the end caps of 61- first, 611- locating rings, 62- first
Snap ring, 63- bearings, the mounting assemblies of 7- second, the end caps of 71- second, 72- fixtures, the snap rings of 73- second, 100- derusting devices, A-
Brake disc, B- roller bearings, C- brakes, D- rollers.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiments of the invention provide a kind of derusting device, as shown in figure 1, the derusting device includes:Mounting seat 1, driving
Part 2, screw rod 3, polished rod 4, the first rust-removing tongses 51 and the second rust-removing tongses 52, polished rod 4 are fixedly mounted in mounting seat 1, and screw rod 3 can turn
It is arranged on dynamicly in mounting seat 1, screw rod 3 is arranged parallel to polished rod 4, and one end periphery wall of screw rod 3 is provided with the first screw thread
Section 31, the other end periphery wall of screw rod 3 is provided with the second thread segment 32, the rotation direction phase of the first thread segment 31 and the second thread segment 32
Instead, the first rust-removing tongses 51 are provided with the first screw and the first slide opening, and the first screw and the screw thread of the first thread segment 31 coordinate, and first slides
Hole is slidably matched with polished rod 4, and the second rust-removing tongses 52 are provided with the second screw and the second slide opening, the second screw and the second thread segment 32
Screw thread coordinates, and the second slide opening is slidably matched with polished rod 4, and actuator 2 is fixedly mounted in mounting seat 1, the output shaft of actuator 2 and
Screw rod 3 is connected.
In the rust stain on the brake disc A (referring to Fig. 2) for removing roller by derusting device 100, the drive screw of actuator 2
3 rotate, and because the first rust-removing tongses 51 and the second rust-removing tongses 52 coordinate with the screw thread of screw rod 3, and are slidably matched, make with polished rod 4
The first rust-removing tongses 51 and the move toward one another of the second rust-removing tongses 52 are obtained, so as to be clamped to brake disc A, in brake disc A with roller
During rotation, pass through the frictional force between brake disc A and the first rust-removing tongses 51 and the second rust-removing tongses 52 so that brake disc A
On rust stain wiped, it is achieved thereby that on brake disc A become rusty stain removing.After the completion of rust stain is removed, actuator 2 drives spiral shell
Bar 3 rotates backward so that the first rust-removing tongses 51 and the second rust-removing tongses 52 are backwards to moving, so that derusting device does not interfere with rolling
The normal work of cylinder.
With continued reference to Fig. 1, in the present embodiment, mounting seat 1 includes two bearings 11, two 11 spaced cloth of bearing
Put, the both ends of screw rod 3 are rotationally inserted on two bearings 11 respectively, and fixation is inserted into two branch respectively at the both ends of polished rod 4
On seat 11.
In above-mentioned implementation, two bearings 11 are each attached on roller bearing B, and two bearings 11 are respectively positioned at system
Moving plate A both sides, for installing the first rust-removing tongses 51 and the second rust-removing tongses 52, consequently facilitating entering to the rust stain of brake disc A both sides
Row is removed.
Preferably, derusting device 100 is located at the brake C of winch top, the roller D of derusting device 100 and winch it
Between line and brake C and roller D between the angle of line be 20 °.
Fig. 3 is the side view of derusting device, and referring to Fig. 3, specifically, bearing 11 includes installing plate 111 and at least two
Strut 112, the both ends of screw rod 3 are rotationally inserted on two installing plates 111 respectively, the both ends fixed inserting respectively of polished rod 4
On two installing plates 111, each support bar 112, which is respectively separated, to be fixed on each self-corresponding installing plate 111.
Specifically, installing plate 111 can be long strip shape structure, and screw rod 3 and polished rod 4 are installed in installing plate 111
One end, bearing 11 include two support bars 112, and two support bars 112 are each attached to the opposite side of installing plate 111, so as to utilize
The length of installing plate 111 causes bearing 11 not produce interference with brake disc A.
Fig. 4 is the partial sectional view of derusting device, and with reference to Fig. 4, in the present embodiment, derusting device also includes two first
Mounting assembly 6, two the first mounting assemblies 6 are corresponding with the both ends of screw rod 3 respectively, and two the first mounting assemblies 6 include first
End cap 61, the first snap ring 62 and bearing 63, the shaft shoulder 33 is equipped with the both ends periphery wall of screw rod 3, is equipped with two bearings 11
First mounting hole 113, the internal perisporium inner side of each first mounting hole 113 are all provided with restraining position ring block 114, for any one the first installation
Component 6, bearing 63 are rotatably arranged in the first mounting hole 113, and the snap ring 62 of bearing 63 and first is set in screw rod 3
On periphery wall, the inner ring of bearing 63 is folded between the first snap ring 62 and the shaft shoulder 33, and the first end cap 61 is arranged on corresponding first
On the outside of mounting hole 113, the outer ring of bearing 63 is folded between the first end cap 61 and spacing ring 114.
In above-mentioned implementation, the first snap ring 62 and the shaft shoulder 33 carry out clamping position, first end to the inner ring of bearing 63
Lid 61 and spacing ring 114 carry out clamping position to the outer ring of bearing 63, determine so as to realize the axial direction of screw rod 3 by bearing 63
Position.
Specifically, locating ring 611 is equipped with each first end cap 61, each locating ring 611 is inserted into respective correspondence
The first mounting hole 113 in.
, can be by the way that locating ring 611 be inserted to the first installation when installing the first end cap 61 in above-mentioned implementation
In hole 113, to realize the location and installation of the first end cap 61.
Preferably, the internal perisporium gap of the periphery wall of locating ring 611 and the first mounting hole 113 coordinates.
Fig. 5 is the partial sectional view of derusting device, and with reference to Fig. 5, in the present embodiment, derusting device also includes two second
Mounting assembly 7, two the second mounting assemblies 7 are corresponding with the both ends of polished rod 4 respectively, and two the second mounting assemblies 7 include second
End cap 71 and fixture 72, are equipped with the second mounting hole 115 on two bearings 11, and it is each right that the both ends of polished rod 4 are inserted into respectively
In the second mounting hole 115 answered, for any one the second mounting assembly 7, the second end cap 71 is arranged on corresponding second mounting hole
On 115 outside, the second end cap 71 is fixed together by fixture 72 and polished rod 4.
In above-mentioned implementation, fixture 72 can be bolt, and bolt is inserted into the end of polished rod 4, the second end cap 71
It is fixed together by bolt and polished rod 4.
Specifically, the second mounting assembly 7 also includes the second snap ring 73, and the second snap ring 73 is sleeved on the periphery wall of polished rod 4,
Second snap ring 73 offsets with the inner side of corresponding second mounting hole 115, so as to further limit the axial displacement of polished rod 4.
Referring again to Fig. 1, in the present embodiment, derusting part 53 is equipped with the first rust-removing tongses 51 and the second rust-removing tongses 52,
The derusting part 53 on the derusting rust-removing tongses 52 of part 53 and second on first rust-removing tongses 51 is positioned opposite.
In above-mentioned implementation, derusting part 53 can be powder metallurgy, so as to ensure that the structure of derusting part 53 is strong
Degree.
Preferably, the part 53 that derusts is disk-like structure part, so as to ensure the contact surface to derust between part 53 and brake disc A
Product, and then improve the derusting effect of derusting device.
Specifically, the side of derusting part 53 is provided with counterbore, and screw is fitted with counterbore, and derusting part 53 is fixed by screws in
On first rust-removing tongses 51 or the second rust-removing tongses 52, derusting part 53 is protruded from so as to avoid screw, causes screw and brake disc A to draw
Wound.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
1. a kind of derusting device, it is characterised in that the derusting device includes:Mounting seat, actuator, screw rod, polished rod, first remove
Rust pincers and the second rust-removing tongses, the polished rod are fixedly mounted in the mounting seat, and the screw rod is installed in rotation on the peace
Fill on seat, the screw rod is arranged parallel to the polished rod, and one end periphery wall of the screw rod is provided with the first thread segment, institute
The other end periphery wall for stating screw rod is provided with the second thread segment, the rotation direction phase of first thread segment and second thread segment
Instead, first rust-removing tongses are provided with the first screw and the first slide opening, and first screw is matched somebody with somebody with the first thread segment screw thread
Close, first slide opening is slidably matched with the polished rod, and second rust-removing tongses are provided with the second screw and the second slide opening, described
Second screw coordinates with the second thread segment screw thread, and second slide opening is slidably matched with the polished rod, and the actuator is consolidated
In the mounting seat, the output shaft of the actuator is connected with the screw drive for Dingan County.
2. derusting device according to claim 1, it is characterised in that the mounting seat includes two bearings, described in two
The spaced arrangement of bearing, the both ends of the screw rod are rotationally inserted on two bearings respectively, and the two of the polished rod
Fixation is inserted on two bearings respectively at end.
3. derusting device according to claim 2, it is characterised in that the bearing includes installing plate and at least two supports
Bar, the both ends of the screw rod are rotationally inserted on two installing plates respectively, and the both ends of the polished rod are fixed respectively to insert
On two installing plates, each support bar, which is respectively separated, to be fixed on each self-corresponding installing plate.
4. derusting device according to claim 2, it is characterised in that the derusting device also includes two the first installation groups
Part, two first mounting assemblies are corresponding with the both ends of the screw rod respectively, and two first mounting assemblies include the
One end cap, the first snap ring and bearing, the shaft shoulder is equipped with the both ends periphery wall of the screw rod, is equipped with two bearings
One mounting hole, the internal perisporium inner side of each first mounting hole is all provided with restraining position ring block, for the first installation group any one described
Part, the bearing are rotatably arranged in first mounting hole, and the bearing and first snap ring are set in institute
State on the periphery wall of screw rod, the inner ring of the bearing is folded between first snap ring and the shaft shoulder, first end cap
On the outside of corresponding first mounting hole, the outer ring of the bearing is folded in first end cap and described spacing
Between ring.
5. derusting device according to claim 4, it is characterised in that each first end, which covers, is equipped with locating ring,
Each locating ring is inserted into each self-corresponding first mounting hole.
6. derusting device according to claim 2, it is characterised in that the derusting device also includes two the second installation groups
Part, two second mounting assemblies are corresponding with the both ends of the polished rod respectively, and two second mounting assemblies include the
Two end caps and fixture, are equipped with the second mounting hole on two bearings, and it is each right that the both ends of the polished rod are inserted into respectively
In second mounting hole answered, for the second mounting assembly any one described, second end cap is arranged on corresponding described
On the outside of second mounting hole, second end cap is fixed together by the fixture and the polished rod.
7. derusting device according to claim 6, it is characterised in that second mounting assembly also includes the second snap ring,
Second snap ring is sleeved on the periphery wall of the polished rod, the inner side of second snap ring and corresponding second mounting hole
Offset.
8. according to the derusting device described in claim any one of 1-7, it is characterised in that first rust-removing tongses and described second
It is equipped with derusting part on rust-removing tongses, the derusting on the derusting part and second rust-removing tongses on first rust-removing tongses
Part is positioned opposite.
9. derusting device according to claim 8, it is characterised in that the derusting part is disk-like structure part.
10. derusting device according to claim 8, it is characterised in that the side of the derusting part is provided with counterbore, described heavy
Screw is fitted with hole, the derusting part is fixed on the first rust-removing tongses or the second rust-removing tongses by the screw.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710760986.6A CN107552426B (en) | 2017-08-30 | 2017-08-30 | Rust removal device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710760986.6A CN107552426B (en) | 2017-08-30 | 2017-08-30 | Rust removal device |
Publications (2)
Publication Number | Publication Date |
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CN107552426A true CN107552426A (en) | 2018-01-09 |
CN107552426B CN107552426B (en) | 2020-05-12 |
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ID=60977683
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Application Number | Title | Priority Date | Filing Date |
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CN201710760986.6A Active CN107552426B (en) | 2017-08-30 | 2017-08-30 | Rust removal device |
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CN (1) | CN107552426B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109515623A (en) * | 2018-10-24 | 2019-03-26 | 武汉船用机械有限责任公司 | A kind of rigging centralising device |
CN110193771A (en) * | 2019-05-24 | 2019-09-03 | 贵州乌江水电开发有限责任公司沙沱发电厂 | A kind of safe drum brake disc automatic rust removing device of ship lift |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103062351A (en) * | 2012-12-23 | 2013-04-24 | 浙江大学 | Light-load ball screw pair installing and supporting device |
CN103457223A (en) * | 2013-08-19 | 2013-12-18 | 燕山大学 | Cable double-axis pressure deicing robot |
-
2017
- 2017-08-30 CN CN201710760986.6A patent/CN107552426B/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103062351A (en) * | 2012-12-23 | 2013-04-24 | 浙江大学 | Light-load ball screw pair installing and supporting device |
CN103457223A (en) * | 2013-08-19 | 2013-12-18 | 燕山大学 | Cable double-axis pressure deicing robot |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109515623A (en) * | 2018-10-24 | 2019-03-26 | 武汉船用机械有限责任公司 | A kind of rigging centralising device |
CN109515623B (en) * | 2018-10-24 | 2020-07-28 | 武汉船用机械有限责任公司 | Rigging centering device |
CN110193771A (en) * | 2019-05-24 | 2019-09-03 | 贵州乌江水电开发有限责任公司沙沱发电厂 | A kind of safe drum brake disc automatic rust removing device of ship lift |
CN110193771B (en) * | 2019-05-24 | 2021-06-04 | 贵州乌江水电开发有限责任公司沙沱发电厂 | Automatic rust cleaning device for ship lift safety drum brake disc |
Also Published As
Publication number | Publication date |
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