CN203922575U - The block brake of elevator traction machine - Google Patents
The block brake of elevator traction machine Download PDFInfo
- Publication number
- CN203922575U CN203922575U CN201420290946.1U CN201420290946U CN203922575U CN 203922575 U CN203922575 U CN 203922575U CN 201420290946 U CN201420290946 U CN 201420290946U CN 203922575 U CN203922575 U CN 203922575U
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- China
- Prior art keywords
- brake
- block
- control lever
- wheel
- groups
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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.)
- Expired - Lifetime
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- 230000000979 retarding effect Effects 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 description 1
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- Cage And Drive Apparatuses For Elevators (AREA)
- Braking Arrangements (AREA)
Abstract
The utility model discloses a kind of block brake of elevator traction machine, comprise the two groups of brake blocks (2), brake control lever (3), retarding spring (4), electromagnet (5) and the hinge (6) that are located at brake wheel (1) both sides; One end of described brake control lever (3) is connected with electromagnet (5), and the other end is connected with hinge (6), and described brake block (2) is fixed on the inner side of brake control lever (3), and described retarding spring (4) is located on brake control lever (3); The radius of two groups of brake blocks (2) is all greater than the radius of brake wheel (1), and the axis of the axis of two groups of brake blocks (2) and brake wheel (1) is parallel and at grade.The block brake of this elevator traction machine makes the independent contact point of brake wheel both sides can, because manufacturing errors too departs from brake shoe center, manufacturing process is simple, lock torque is stable, rotating lock torque is close, not guarantee safety.
Description
Technical field
The utility model relates to elevator technology field, is specifically a kind of block brake of elevator traction machine.
Background technology
The block brake of current elevator traction machine comprises brake wheel, brake block, brake control lever, retarding spring and electromagnet; One end of brake control lever is connected with electromagnet, the other end and stud connection, and brake block is fixed on the inner side of brake control lever.After electromagnet energising, drive one end of brake control lever to swing, overcome retarding spring simultaneously, make brake block and the brake wheel of brake control lever inner side fit and hold tightly, thus braking.After electromagnet power-off, drive one end of brake control lever at the effect lower swing of retarding spring, make the brake block of brake control lever inner side separated with brake wheel, thereby do not brake.
At present a lot of manufacturing firms, when design fixed type brake block, are designed to the same radius of concentric by brake block and brake wheel.In Practical manufacturing process, manufacturing firm not only makes great efforts to improve the working accuracy that brake control lever, brake block and brake control lever hinge coordinate, even brake block is polished before assembling, to obtaining enough and stable lock torque, but the impact due to each parts manufacturing errors, brake block and brake wheel also can not be fitted completely, brake block and contacting of brake wheel may be only local face contact or line contact or even some contacts, and there is direct relation the position of lock torque and these contacts site.Actual conditions exist that actual braking force square is less than normal, rotating lock torque differ large, with phenomenons such as the lock torque of batch products are unstable.
Utility model content
The technical problems to be solved in the utility model is, provide a kind of independent contact point of brake wheel both sides that makes can, because manufacturing errors too departs from brake shoe center, manufacturing process is simple, lock torque is stable, rotating lock torque is close, not guarantee the block brake of safe elevator traction machine.
The technical solution of the utility model is, a kind of block brake with the elevator traction machine of following structure is provided, and comprises two groups of brake blocks, brake control lever, retarding spring, electromagnet and hinges being located at brake wheel both sides; One end of described brake control lever is connected with electromagnet, the other end and stud connection, and described brake block is fixed on the inner side of brake control lever, and described retarding spring is located on brake control lever; The radius of two groups of brake blocks is all greater than the radius of brake wheel, the axis of two groups of brake blocks is parallel with the axis of brake wheel and at grade, and the axis of one of them brake block in two groups of brake blocks is between the axis of brake wheel and the axis of another brake block.
Two brake blocks are symmetrical along the circumference of brake wheel.
Adopt after said structure, the utility model compared with prior art, have the following advantages: make the independent contact point of brake wheel both sides can too not depart from brake shoe center because of manufacturing errors, brake block need to not grind before and after assembling, simplify production technology, saving of work and time, also eliminated that lock torque is less than normal simultaneously, rotating lock torque differ large, with phenomenons such as the lock torque of batch products are unstable.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the block brake of elevator traction machine of the present utility model.
Accompanying drawing 2 is cross-sectional view of the block brake of elevator traction machine of the present utility model.
Shown in figure, 1, brake wheel, 2, brake block, 3, brake control lever, 4, retarding spring, 5, electromagnet, 6, hinge.
The specific embodiment
Below in conjunction with accompanying drawing, the block brake of the utility model elevator traction machine is described further.
As shown in Figure 1 and Figure 2, the block brake of elevator traction machine of the present utility model, comprises the two groups of brake blocks 2, brake control lever 3, retarding spring 4, electromagnet 5 and the hinge 6 that are located at brake wheel 1 both sides; One end of described brake control lever 3 is connected with electromagnet 5, and the other end is connected with hinge 6, and described brake block 2 is fixed on the inner side of brake control lever 3, and described retarding spring 4 is located on brake control lever 3; It is characterized in that: the radius of two groups of brake blocks 2 is all greater than the radius of brake wheel 1, the axis of the axis of two groups of brake blocks 2 and brake wheel 1 is parallel and at grade, and the axis of one of them brake block 2 in two groups of brake blocks 2 is between the axis of brake wheel 1 and the axis of another brake block 2.Two brake blocks 2 are symmetrical along the circumference of brake wheel 1.Adopt this structure to make the independent contact point of brake wheel both sides can too not depart from brake shoe center because of manufacturing errors, brake block need to not grind before and after assembling, simplify production technology, saving of work and time, also eliminated that lock torque is less than normal simultaneously, rotating lock torque differ large, with phenomenons such as the lock torque of batch products are unstable.
Claims (2)
1. a block brake for elevator traction machine, comprises the two groups of brake blocks (2), brake control lever (3), retarding spring (4), electromagnet (5) and the hinge (6) that are located at brake wheel (1) both sides; One end of described brake control lever (3) is connected with electromagnet (5), and the other end is connected with hinge (6), and described brake block (2) is fixed on the inner side of brake control lever (3), and described retarding spring (4) is located on brake control lever (3); It is characterized in that: the radius of two groups of brake blocks (2) is all greater than the radius of brake wheel (1), the axis of the axis of two groups of brake blocks (2) and brake wheel (1) is parallel and at grade, and the axis of one of them brake block (2) in two groups of brake blocks (2) is positioned between the axis of brake wheel (1) and the axis of another brake block (2).
2. the block brake of elevator traction machine according to claim 1, is characterized in that: two brake blocks (2) are symmetrical along the circumference of brake wheel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420290946.1U CN203922575U (en) | 2014-03-07 | 2014-05-30 | The block brake of elevator traction machine |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420104456 | 2014-03-07 | ||
| CN201420104456.8 | 2014-03-07 | ||
| CN201420290946.1U CN203922575U (en) | 2014-03-07 | 2014-05-30 | The block brake of elevator traction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203922575U true CN203922575U (en) | 2014-11-05 |
Family
ID=51818431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420290946.1U Expired - Lifetime CN203922575U (en) | 2014-03-07 | 2014-05-30 | The block brake of elevator traction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203922575U (en) |
-
2014
- 2014-05-30 CN CN201420290946.1U patent/CN203922575U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |