CN203082075U - Tile block type brake - Google Patents
Tile block type brake Download PDFInfo
- Publication number
- CN203082075U CN203082075U CN 201220675782 CN201220675782U CN203082075U CN 203082075 U CN203082075 U CN 203082075U CN 201220675782 CN201220675782 CN 201220675782 CN 201220675782 U CN201220675782 U CN 201220675782U CN 203082075 U CN203082075 U CN 203082075U
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- Prior art keywords
- brake
- groove
- ring
- break
- tile fragment
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- Expired - Fee Related
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Abstract
A tile block type brake comprises a brake tile and a brake wheel. At least one annular groove is formed in a friction face of the brake tile. A friction face of the brake wheel is a face matched with the annular groove. The annular groove is an annular curved surface groove. The friction face of the brake wheel is an annular curved surface protruding rib matched with the annular curved surface groove. The groove is formed in the brake face of the brake, so that a friction area is increased, and no large treading force or oil pressure is needed. Brake force can be improved without utilization of a brake wheel with a large diameter.
Description
Technical field
The utility model relates to the braking equipment in the harbour machinery, specifically is exactly block brake.
Background technique
Block brake can be divided into two kinds on short stroke break and long stroke break again according to the length of the stroke that declutches.
(1) working principle of short stroke break
When mechanism cut off the power supply, the main spring catch bar was outwards upheld, and the shaped as frame pull bar moves inwards simultaneously, spurred left and right brake arm, makes the braking tile fragment, was pressed on the Brake drum, and the friction torque that produces between brake shoe and the Brake drum makes mechanism's braking.After mechanism's energising, electromagnet armature is attracted to iron core.Armature promotes push rod to the right, further compress main spring, at this moment left brake arm is under the eccentricity pressure effect that the electromagnet deadweight produces, automatically left-leaning, make left side braking tile fragment leave Brake drum, left brake arm is obstructed when deflecting into the position of adjusting bolt and stops, meanwhile, auxiliary spring inclines the right braking of right brake arm drive tile fragment to the right, away from Brake drum, realizes declutching.The short stroke break have declutch rapid with brake application, size is little, contact evenly, be convenient to advantages such as adjustment with tile fragment from heavy and light, Brake drum, but because the restriction of electromagnet suction, generally be used in the less and mechanism of Brake drum diameter of braking moment less than 300mm.
(2) long stroke break working principle
Because the short stroke break is subjected to the restriction of electromagnet suction, can not obtain big braking moment, so the mechanism of braking moment adopts long stroke electromagnetic tile fragment break more.Long stroke break also is to rely on main spring brake application, electromagnet to declutch, but because electromagnet can increase upper locking force by lever system, so can obtain bigger braking moment.
The advantage of electromagnetism block brake be simple in structure, can with the operating circuit of motor interlocking, so stop or during sudden power when motor work, break can automatic brake application, and is safe and reliable.But fierce impact (the short stroke break impacts particularly violent) is arranged during owing to the electromagnet action, noise is very big, and fierce brake can produce harmful effect to mechanism, need start continually and brake owing to mechanism simultaneously, electromagnet is constantly collided, thereby the life-span is lower, needs often maintenance.Therefore, it is reliable that lifting mechanism is generally used the long stroke break of three phase current.
(3) working principle of hydraulic electromagnet break
The hydraulic electromagnet break is structurally basic identical with long stroke tile fragment break, has just replaced original electromagnet with hydraulic electromagnet.Its working principle is: behind coil electricity, moving iron core is attracted to move upward by static iron core, and the fluid in the crack, two iron cores interval is extruded, and these fluid promote pistons push rod is extruded, and promote lever plate simultaneously, further compress main spring, and break is declutched.One-way valve by, form, when not having pressure in the following oil pocket, the deadweight of valve block makes one-way valve opens, oil flow back to working oil chamber from oil cylinder.When in the working oil chamber pressure being arranged, valve block is pressed towards top O-ring seals, and oil circuit is cut off.One-way valve can guarantee that moving iron core can be fallen at the end when coil blackout.Behind coil blackout, push rod is subjected to the pressure effect of brake spring, move down, oil below the piston flow back into iron core gap again, and after outage, moving iron core is fallen the bottom simultaneously, the top lower valve jack-up of bottom center with base valve, oil during the working clearance flows back to oil cylinder through passage, and piston is fully descended, thereby guarantee to brake tile fragment Brake drum is held tightly.Should earlier bleeder screw be turned on during oiling, put the air of clean the inside, could guarantee the hydraulic electromagnet proper functioning.
Though more than which kind of break, all be that the friction torque that produces between brake shoe and the Brake drum makes mechanism's braking, be crucial so increase the frictional force that produces between brake shoe and the Brake drum.
Summary of the invention
In order to increase the frictional force that produces between brake shoe and the Brake drum, the utility model provides a kind of block brake.
The utility model is achieved in that a kind of tile fragment break, comprises brake shoe and Brake drum, and the rubbing surface of brake shoe is provided with at least one annular ditch groove, the face of the rubbing surface of Brake drum for matching with annular ditch groove.
Described tile fragment break, described annular ditch groove are the ring-type curved surface groove, the ring-type curved surface convex tendon of the rubbing surface of Brake drum for matching with the ring-type curved surface groove.
Described tile fragment break, described ring-type curved surface groove is the ring-type arc groove, the ring-type circular arc convex tendon face of the rubbing surface of Brake drum for matching with the ring-type arc groove.
Described tile fragment break, described annular ditch groove quantity are one of 2,3,4,5,6.
Described tile fragment break, described annular ditch groove is arranged on the rubbing surface of Brake drum, and described ring-type convex tendon is arranged on the rubbing surface of brake shoe.
Braking surface of the present utility model is established groove, has increased friction area, does not need big stampede power or oil pressure.Need not use the bigger Brake drum of diameter yet, just can improve the strength of braking.
Description of drawings
Fig. 1 is a tile fragment break plan view.
Fig. 2 is a tile fragment break curved surface rubbing surface structural representation.
Fig. 3 is a tile fragment break circular arc rubbing surface structural representation.
Embodiment
As Fig. 1-3 one kind of tile fragment break, comprise brake shoe 1 and Brake drum 2, the rubbing surface of brake shoe is provided with at least one annular ditch groove, the face of the rubbing surface of Brake drum for matching with annular ditch groove.
Tile fragment break as described in Figure 2, described annular ditch groove are ring-type curved surface groove 11, the ring-type curved surface convex tendon 21 of the rubbing surface of Brake drum for matching with the ring-type curved surface groove.
Tile fragment break as described in Figure 3, described ring-type curved surface groove is a ring-type arc groove 12, the ring-type circular arc convex tendon face 22 of the rubbing surface of Brake drum for matching with the ring-type arc groove.
Described tile fragment break, described annular ditch groove quantity are one of 2,3,4,5,6.
Described tile fragment break, described annular ditch groove is arranged on the rubbing surface of Brake drum, and described ring-type convex tendon is arranged on the rubbing surface of brake shoe.
Claims (5)
1. a tile fragment break comprises brake shoe and Brake drum, it is characterized in that: the rubbing surface of brake shoe is provided with at least one annular ditch groove, the face of the rubbing surface of Brake drum for matching with annular ditch groove.
2. tile fragment break as claimed in claim 1 is characterized in that: described annular ditch groove is the ring-type curved surface groove, the ring-type curved surface convex tendon of the rubbing surface of Brake drum for matching with the ring-type curved surface groove.
3. tile fragment break as claimed in claim 2 is characterized in that: described ring-type curved surface groove is the ring-type arc groove, the ring-type circular arc convex tendon face of the rubbing surface of Brake drum for matching with the ring-type arc groove.
4. as the described tile fragment break of one of claim 1-3, it is characterized in that: described annular ditch groove quantity is one of 2,3,4,5,6.
5. as the described tile fragment break of one of claim 1-3, it is characterized in that: described annular ditch groove is arranged on the rubbing surface of Brake drum, and described ring-type convex tendon is arranged on the rubbing surface of brake shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220675782 CN203082075U (en) | 2012-12-10 | 2012-12-10 | Tile block type brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220675782 CN203082075U (en) | 2012-12-10 | 2012-12-10 | Tile block type brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082075U true CN203082075U (en) | 2013-07-24 |
Family
ID=48827916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220675782 Expired - Fee Related CN203082075U (en) | 2012-12-10 | 2012-12-10 | Tile block type brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082075U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867608A (en) * | 2012-12-10 | 2014-06-18 | 杨勇 | Broken tile brake |
| CN105299109A (en) * | 2015-10-28 | 2016-02-03 | 嘉善烽火节能设备有限公司 | Push-rod brake with automatic rapid heat dissipation function |
-
2012
- 2012-12-10 CN CN 201220675782 patent/CN203082075U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867608A (en) * | 2012-12-10 | 2014-06-18 | 杨勇 | Broken tile brake |
| CN105299109A (en) * | 2015-10-28 | 2016-02-03 | 嘉善烽火节能设备有限公司 | Push-rod brake with automatic rapid heat dissipation function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20141210 |
|
| EXPY | Termination of patent right or utility model |