CN105347224B - A kind of manual unlocking device of crane hoisting mechanism roll brake - Google Patents
A kind of manual unlocking device of crane hoisting mechanism roll brake Download PDFInfo
- Publication number
- CN105347224B CN105347224B CN201510923195.1A CN201510923195A CN105347224B CN 105347224 B CN105347224 B CN 105347224B CN 201510923195 A CN201510923195 A CN 201510923195A CN 105347224 B CN105347224 B CN 105347224B
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- CN
- China
- Prior art keywords
- camshaft
- brake
- hoisting mechanism
- unlocking device
- manual unlocking
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/03—Mechanisms with latches or braking devices in general for capstans, hoists or similar devices as well as braking devices actuated electrically or by fluid under pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention relates to a kind of manual unlocking device of crane hoisting mechanism roll brake,It includes roller,Roller is provided with fixed plate,Fixed plate right flank is provided with connecting plate,Connecting plate is connected with U-shaped support,U-shaped rack side wall interlocking has spring fastening,Spring fastening is connected with adjusting rod,Adjusting rod outer wall is socketed with nut,Catch and spring are provided with spring fastening,Spring is connected with brake shoe,Camshaft support is connected with the middle part of fixed plate,Camshaft support is embedded to be connected to camshaft,Camshaft one end is provided with spline tooth,Camshaft left part is connected with brake arm,Brake arm left part is provided with gear ring,Gear ring is provided with internal tooth,External tooth and ball grooves,Brake arm top is connected with worm screw,Brake arm right part is provided with connecting hole,Brake arm is connected with fix bar,Camshaft right part is socketed with cam,Camshaft right-hand member outer wall is socketed with wear-resistant sleeve,The present invention has simple in construction,Operating cost is low,It is widely used,The advantages of brake safe.
Description
Technical field
The invention belongs to technical field of crane equipment, and in particular to a kind of hand of crane hoisting mechanism roll brake
Dynamic device for opening.
Background technology
For producing crane, the braking for roller uses electrodynamic braking mode at present, and when needs are to rolling
Brake shoe is driven roller is stopped using electronic pusher when cylinder stops braking, the drawbacks of certain be present in this brake,
Be mainly manifested in brake only normally could make roller be stopped in the energized state, when starter is under off-position
Side can not normally control the start-stop of roller to work, so when roller lifts weight, if brake powers off suddenly, it is difficult to ensure that
Weight will not fall, in some instances it may even be possible to the generation to cause the accident, great economic loss, the life of serious threat worker be brought to enterprise
Life safety, to this exploitation it is a kind of it is simple in construction, operating cost is low, widely used, brake safe crane hoisting mechanism roller
The manual unlocking device tool of brake is of great significance.
The content of the invention
The invention aims to overcome the deficiencies in the prior art, and offer one kind is simple in construction, operating cost is low, uses
Way is extensive, the manual unlocking device of the crane hoisting mechanism roll brake of brake safe.
The object of the present invention is achieved like this：A kind of manual unlocking device of crane hoisting mechanism roll brake,
It includes roller, and one end of described roller is provided with fixed plate, connection is provided with the right flank on described fixed plate top
Plate, described connecting plate have been bolted U-shaped support, and rabbeting in the side wall of described U-shaped support has spring fastening, described
One end of spring fastening be connected through a screw thread adjusting rod, nut, spring fastening are socketed with the outer wall of described adjusting rod
Inside it is disposed with catch and spring from the inside to the outside, the other end of described spring is connected with brake shoe, the left side in the middle part of fixed plate
Camshaft support is connected by screw on side, described camshaft support is embedded to be connected to camshaft, described camshaft one
Spline tooth is provided with the outer wall at end, the left part of camshaft is connected with brake arm, and the left part of described brake arm is provided with
Ball clamping and the gear ring that is meshed with spline tooth, described gear ring be provided with internal tooth, external tooth and ball grooves, brake arm it is upper
Portion is connected with the worm screw being meshed with external tooth by bearing, and the right part of brake arm is provided with connecting hole, and brake arm is connected with fixation
Bar, described fix bar are connected with fixed plate, and the cam being engaged with brake shoe, cam are socketed with the outer wall of camshaft right part
Wear-resistant sleeve is socketed with the outer wall of axle right-hand member, described wear-resistant sleeve is connected by screw with U-shaped support.
Described connecting plate is L-type structure, and connecting plate is connected by way of welding with fixed plate.
The quantity of described brake shoe is two, and is separately positioned on the both sides of cam.
The quantity of described spring fastening is two, and is symmetrically arranged on the two side of U-shaped support.
Described cam is fixedly connected by screw with camshaft.
Described spring is in compressive state.
Strip through-hole is provided with the middle part of described cam.
Thick column, rectangular part and the thin column composition that described camshaft is set gradually from left to right, and thick circle
Column piece, rectangular part and thin column are formed in one structure.
Beneficial effects of the present invention：In the use of the present invention, when needing lifting heavy goods, gear ring is driven by rotary worm
Rotation, when gear ring rotate, gear ring drives camshaft to rotate, and because camshaft is fixedly connected by screw with cam, works as camshaft
During rotation, camshaft drives cam rotation, and so as to which the brake shoe of cam both sides be opened, when brake shoe is opened, roller is in
Locking state is released, and then utilizes the normal raising weight of roller, brake arm passes through gear ring and spline and cam axis connection, this company
The mode of connecing is effectively prevented the slip between brake arm and camshaft, prevents the generation of skidding, camshaft support
Setting be camshaft for convenience installation and fixation, increase the contact area between camshaft and fixed plate, wear-resistant sleeve
Setting is to reduce the friction between camshaft and U-shaped support, extends the service life of camshaft, reduces operating cost, when
When needing brake drum, worm screw is can be manually rotated, worm screw drives camshaft to rotate by gear ring, as the cam shaft rotates camshaft band
Moving cam rotates, and so as to which brake shoe be closed, brake shoe utilizes the bounce of spring by roller locking, so that roller stops work
Make, this set does not interfere with the normally closed of roller yet, be effectively prevented weight-drop under unexpected powering-off state
Possibility, avoid be accident generation, this set is simple in construction, performance easy to use, safe is high, and spring fastening is set
Put be spring for convenience fixation, the setting of adjusting rod be in order to adjust the pressure of spring, when brake shoe in use
When wearing, the pressure of spring can be readjusted by the regulation of adjusting rod, makes brake shoe that there is roller locking, the present invention
Simple in construction, the advantages of operating cost is low, widely used, brake safe.
Brief description of the drawings
Fig. 1 is a kind of top view of the manual unlocking device of crane hoisting mechanism roll brake of the present invention.
Fig. 2 is spring fastening and the regulation of a kind of manual unlocking device of crane hoisting mechanism roll brake of the present invention
The attachment structure schematic diagram of bar.
Fig. 3 shows for a kind of structure of the brake arm of the manual unlocking device of crane hoisting mechanism roll brake of the present invention
It is intended to.
Fig. 4 is a kind of main view of the camshaft of the manual unlocking device of crane hoisting mechanism roll brake of the present invention
Figure.
Fig. 5 is a kind of side view of the camshaft of the manual unlocking device of crane hoisting mechanism roll brake of the present invention
Figure.
Fig. 6 is a kind of structural representation of the cam of the manual unlocking device of crane hoisting mechanism roll brake of the present invention
Figure.
Fig. 7 is a kind of front view of the gear ring of the manual unlocking device of crane hoisting mechanism roll brake of the present invention.
Fig. 8 is a kind of side view of the gear ring of the manual unlocking device of crane hoisting mechanism roll brake of the present invention.
In figure：1st, roller 2, fixed plate 3, connecting plate 4, U-shaped support 5, spring fastening 6, adjusting rod 7,
Nut 8, catch 9, spring 10, brake shoe 11, camshaft support 12, camshaft 13, spline tooth 14, brake
Arm 15, gear ring 16, internal tooth 17, external tooth 18, ball grooves 19, worm screw 20, connecting hole 21, fix bar 22,
Cam 23, wear-resistant sleeve.
Embodiment
The present invention is described further below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8, a kind of crane hoisting mechanism roll brake
Manual unlocking device, it includes roller 1, and one end of described roller 1 is provided with fixed plate 2, the right side on the described top of fixed plate 2
Connecting plate 3 is provided with side, described connecting plate 3 has been bolted U-shaped support 4, the side wall of described U-shaped support 4
Upper interlocking has spring fastening 5, and one end of described spring fastening 5 has been connected through a screw thread adjusting rod 6, described adjusting rod 6
Nut 7 is socketed with outer wall, is disposed with catch 8 and spring 9 in spring fastening 5 from the inside to the outside, described spring 9 it is another
End is connected with brake shoe 10, and camshaft support 11, described camshaft have been connected by screw on the left surface at the middle part of fixed plate 2
Bearing 11 is embedded to be connected to camshaft 12, and spline tooth 13, a left side for camshaft 12 are provided with the outer wall of described one end of camshaft 12
Portion is connected with brake arm 14, that the left part of described brake arm 14 is provided with ball clamping and be meshed with spline tooth 13
Gear ring 15, described gear ring 15 are provided with internal tooth 16, external tooth 17 and ball grooves 18, and the top of brake arm 14 is connected with by bearing
The worm screw 19 being meshed with external tooth 17, the right part of brake arm 14 are provided with connecting hole 20, and brake arm 14 is connected with fix bar 21, institute
The fix bar 21 stated is connected with fixed plate 2, and the cam 22 being engaged with brake shoe 10 is socketed with the outer wall of the right part of camshaft 12,
Wear-resistant sleeve 23 is socketed with the outer wall of the axle right-hand member of cam 22, described wear-resistant sleeve 23 is connected by screw with U-shaped support 4.
In the use of the present invention, when needing lifting heavy goods, gear ring is driven to rotate by rotary worm, when gear ring rotates
Gear ring drives camshaft rotation, because camshaft is fixedly connected by screw with cam, as the cam shaft rotates, camshaft drive
Cam rotation, so as to which the brake shoe of cam both sides be opened, when brake shoe is opened, roller is in the locking state that releases, and then
Using the normal raising weight of roller, brake arm is effectively prevented by gear ring and spline and cam axis connection, this connected mode
Slip between brake arm and camshaft, prevents the generation of skidding, the setting of camshaft support is for convenience
The installation and fixation of camshaft, increase the contact area between camshaft and fixed plate, the setting of wear-resistant sleeve is convex in order to reduce
Friction between wheel shaft and U-shaped support, extend the service life of camshaft, reduce operating cost, when needing brake drum, hand
Rotary worm is moved, worm screw drives camshaft to rotate by gear ring, and camshaft band moving cam rotates as the cam shaft rotates, so that will
Brake shoe closes, and brake shoe is using the bounce of spring by roller locking, so that roller is stopped, this set is even in prominent
Under right powering-off state, the normally closed of roller is not interfered with, is effectively prevented the possibility of weight-drop, it is thing to avoid yet
Therefore generation, this set is simple in construction, performance easy to use, safe is high, and the setting of spring fastening is in order to facilitate spring
Fixed, the setting of adjusting rod is to adjust the pressure of spring, when brake shoe abrasion occurs in use, can pass through tune
The regulation of pole readjusts the pressure of spring, makes brake shoe that roller locking, the present invention are had into simple in construction, operating cost
The advantages of low, widely used, brake safe.
Embodiment 2
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8, a kind of crane hoisting mechanism roll brake
Manual unlocking device, it includes roller 1, and one end of described roller 1 is provided with fixed plate 2, the right side on the described top of fixed plate 2
Connecting plate 3 is provided with side, described connecting plate 3 has been bolted U-shaped support 4, the side wall of described U-shaped support 4
Upper interlocking has spring fastening 5, and one end of described spring fastening 5 has been connected through a screw thread adjusting rod 6, described adjusting rod 6
Nut 7 is socketed with outer wall, is disposed with catch 8 and spring 9 in spring fastening 5 from the inside to the outside, described spring 9 it is another
End is connected with brake shoe 10, and camshaft support 11, described camshaft have been connected by screw on the left surface at the middle part of fixed plate 2
Bearing 11 is embedded to be connected to camshaft 12, and spline tooth 13, a left side for camshaft 12 are provided with the outer wall of described one end of camshaft 12
Portion is connected with brake arm 14, that the left part of described brake arm 14 is provided with ball clamping and be meshed with spline tooth 13
Gear ring 15, described gear ring 15 are provided with internal tooth 16, external tooth 17 and ball grooves 18, and the top of brake arm 14 is connected with by bearing
The worm screw 19 being meshed with external tooth 17, the right part of brake arm 14 are provided with connecting hole 20, and brake arm 14 is connected with fix bar 21, institute
The fix bar 21 stated is connected with fixed plate 2, and the cam 22 being engaged with brake shoe 10 is socketed with the outer wall of the right part of camshaft 12,
Wear-resistant sleeve 23 is socketed with the outer wall of the axle right-hand member of cam 22, described wear-resistant sleeve 23 is connected by screw with U-shaped support 4, described
Connecting plate 3 be L-type structure, and connecting plate 3 is connected by way of welding with fixed plate 2, the quantity of described brake shoe 10
For two, and the both sides of cam 22 are separately positioned on, the quantity of described spring fastening 5 is two, and is symmetrically arranged at U
On the two side of type support 4, described cam 22 is fixedly connected by screw with camshaft 12, and described spring 9 is in compression
State, the middle part of described cam 22 are provided with strip through-hole, thick column that described camshaft is set gradually from left to right,
Rectangular part and thin column composition, and thick column, rectangular part and thin column are formed in one structure.
In the use of the present invention, when needing lifting heavy goods, gear ring is driven to rotate by rotary worm, when gear ring rotates
Gear ring drives camshaft rotation, because camshaft is fixedly connected by screw with cam, as the cam shaft rotates, camshaft drive
Cam rotation, so as to which the brake shoe of cam both sides be opened, when brake shoe is opened, roller is in the locking state that releases, and then
Using the normal raising weight of roller, brake arm is effectively prevented by gear ring and spline and cam axis connection, this connected mode
Slip between brake arm and camshaft, prevents the generation of skidding, the setting of camshaft support is for convenience
The installation and fixation of camshaft, increase the contact area between camshaft and fixed plate, the setting of wear-resistant sleeve is convex in order to reduce
Friction between wheel shaft and U-shaped support, extend the service life of camshaft, reduce operating cost, when needing brake drum, hand
Rotary worm is moved, worm screw drives camshaft to rotate by gear ring, and camshaft band moving cam rotates as the cam shaft rotates, so that will
Brake shoe closes, and brake shoe is using the bounce of spring by roller locking, so that roller is stopped, this set is even in prominent
Under right powering-off state, the normally closed of roller is not interfered with, is effectively prevented the possibility of weight-drop, it is thing to avoid yet
Therefore generation, this set is simple in construction, performance easy to use, safe is high, and the setting of spring fastening is in order to facilitate spring
Fixed, the setting of adjusting rod is to adjust the pressure of spring, when brake shoe abrasion occurs in use, can pass through tune
The regulation of pole readjusts the pressure of spring, makes brake shoe that roller locking, the present invention are had into simple in construction, operating cost
The advantages of low, widely used, brake safe.
Claims (8)
1. a kind of manual unlocking device of crane hoisting mechanism roll brake, it includes roller, it is characterised in that：Described
One end of roller is provided with fixed plate, and connecting plate is provided with the right flank on described fixed plate top, and described connecting plate leads to
Crossing bolt connection has U-shaped support, and rabbeting in the side wall of described U-shaped support has spring fastening, one end of described spring fastening
Adjusting rod has been connected through a screw thread, nut is socketed with the outer wall of described adjusting rod, is set successively from the inside to the outside in spring fastening
It is equipped with catch and spring, the other end of described spring is connected with brake shoe, connects on the left surface in the middle part of fixed plate by screw
Camshaft support is connected to, described camshaft support is embedded to be connected to camshaft, is provided with the outer wall of described camshaft one end
Spline tooth, the left part of camshaft are connected with brake arm, the left part of described brake arm be provided with ball clamping and with flower
The gear ring that key teeth is meshed, described gear ring are provided with internal tooth, external tooth and ball grooves, and the top of brake arm is connected with by bearing
The worm screw being meshed with external tooth, the right part of brake arm are provided with connecting hole, and brake arm is connected with fix bar, described fix bar with
Fixed plate connects, and is socketed with the cam being engaged with brake shoe on the outer wall of camshaft right part, is covered on the outer wall of camshaft right-hand member
Wear-resistant sleeve is connected to, described wear-resistant sleeve is connected by screw with U-shaped support.
A kind of 2. manual unlocking device of crane hoisting mechanism roll brake as claimed in claim 1, it is characterised in that：
Described connecting plate is L-type structure, and connecting plate is connected by way of welding with fixed plate.
A kind of 3. manual unlocking device of crane hoisting mechanism roll brake as claimed in claim 1, it is characterised in that：
The quantity of described brake shoe is two, and is separately positioned on the both sides of cam.
A kind of 4. manual unlocking device of crane hoisting mechanism roll brake as claimed in claim 1, it is characterised in that：
The quantity of described spring fastening is two, and is symmetrically arranged on the two side of U-shaped support.
A kind of 5. manual unlocking device of crane hoisting mechanism roll brake as claimed in claim 1, it is characterised in that：
Described cam is fixedly connected by screw with camshaft.
A kind of 6. manual unlocking device of crane hoisting mechanism roll brake as claimed in claim 1, it is characterised in that：
Described spring is in compressive state.
A kind of 7. manual unlocking device of crane hoisting mechanism roll brake as claimed in claim 1, it is characterised in that：
Strip through-hole is provided with the middle part of described cam.
A kind of 8. manual unlocking device of crane hoisting mechanism roll brake as claimed in claim 1, it is characterised in that：
Thick column that described camshaft is set gradually from left to right, rectangular part and thin column composition, and it is thick column, rectangular
Body part and thin column are formed in one structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510923195.1A CN105347224B (en) | 2015-12-14 | 2015-12-14 | A kind of manual unlocking device of crane hoisting mechanism roll brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510923195.1A CN105347224B (en) | 2015-12-14 | 2015-12-14 | A kind of manual unlocking device of crane hoisting mechanism roll brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105347224A CN105347224A (en) | 2016-02-24 |
| CN105347224B true CN105347224B (en) | 2018-03-20 |
Family
ID=55323326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510923195.1A Active CN105347224B (en) | 2015-12-14 | 2015-12-14 | A kind of manual unlocking device of crane hoisting mechanism roll brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105347224B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5228540A (en) * | 1992-07-24 | 1993-07-20 | Hollister-Whitney Elevator Corp. | Elevator car brake with shoes actuated by springs |
| CN2504246Y (en) * | 2001-09-20 | 2002-08-07 | 韩俊陆 | Single drum winch |
| CN100361887C (en) * | 2005-03-03 | 2008-01-16 | 朱思中 | Wire rope braking device |
| CN103527680A (en) * | 2013-10-30 | 2014-01-22 | 十堰市华迪汽车零部件有限公司 | Drum brake for rear axle of lorry |
| CN103979379B (en) * | 2014-06-06 | 2019-03-29 | 浙江工业大学之江学院 | A kind of working method of elevator brake performance whole process real-time inspection and control system |
| CN104495678B (en) * | 2014-12-25 | 2017-09-29 | 森赫电梯股份有限公司 | Intelligent self-checking surveys traction machine brake |
| CN205294707U (en) * | 2015-12-14 | 2016-06-08 | 河南恒远恒山工业有限公司 | Hoist hoisting mechanism drum brake's manual opening device |
-
2015
- 2015-12-14 CN CN201510923195.1A patent/CN105347224B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105347224A (en) | 2016-02-24 |
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