CN210859627U - Wedge brake - Google Patents
Wedge brake Download PDFInfo
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- CN210859627U CN210859627U CN201921456683.6U CN201921456683U CN210859627U CN 210859627 U CN210859627 U CN 210859627U CN 201921456683 U CN201921456683 U CN 201921456683U CN 210859627 U CN210859627 U CN 210859627U
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- brake
- brake block
- wedge
- block
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Abstract
The utility model provides a wedge brake, which comprises a left brake block, a right brake block, a first power mechanism and a second power mechanism; the left brake block is provided with a first brake block, the right brake block is provided with a second brake block, and the first brake block and the second brake block are oppositely arranged; the first power mechanism controls the left brake block to move linearly, the second power mechanism controls the right brake block to move linearly, and when the left brake block and the right brake block move, the first brake block and the second brake block are close to or far away from each other. When the brake needs to be closed, the power mechanism is started to enable the brake pads to approach each other, when the friction surface of the brake pad is contacted with the brake disc, friction force is generated to enable the brake disc to decelerate, and when the distance between the brake pads is smaller than the thickness of the brake disc, the brake pads can clamp the brake disc to enable the brake disc to stop rotating; when the brake needs to be opened, the power mechanism is started to enable the brake pads to be away from each other, and when the distance between the brake pads is larger than the thickness of the brake disc, the friction force disappears, and the brake is completely opened.
Description
Technical Field
The utility model relates to a braking technical field especially is used for the main equipment, specifically is a wedge brake.
Background
Large equipment such as engineering machinery, hoisting machinery, mining machinery, windlass, hoist and hoist has a great significance in various industries, a winding drum device is one of important parts of the large equipment, a brake is arranged on the winding drum device for ensuring safety, main parts of a traditional brake are a spring and an oil cylinder, the pressure of the spring provides torque required by the brake, and the magnitude of the torque is determined by the magnitude of the pressure of the spring; the cylinder compresses the spring, thereby opening the brake. Because the spring is damaged easily, the brake fails, so that the cable wound on the winding drum, the lifting hook on the cable and the workpiece move freely due to self weight, and safety accidents are easily caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the technical problem that a traditional spring type brake is prone to failure is solved.
The utility model provides a wedge brake, which comprises a left brake block, a right brake block, a first power mechanism and a second power mechanism;
the left brake block is provided with a first brake pad, the right brake block is provided with a second brake pad, and the first brake pad and the second brake pad are oppositely arranged;
the first power mechanism controls the left brake block to move linearly, the second power mechanism controls the right brake block to move linearly, and when the left brake block and the right brake block move, the first brake block and the second brake block are close to or far away from each other.
When the brake needs to be closed, the power mechanism is started to enable the brake pads to approach each other, when the friction surface of the brake pad is contacted with the brake disc, friction force is generated to enable the brake disc to decelerate, and when the distance between the brake pads is smaller than the thickness of the brake disc, the brake pads can clamp the brake disc to enable the brake disc to stop rotating; when the brake needs to be opened, the power mechanism is started to enable the brake pads to be away from each other, and when the distance between the brake pads is larger than the thickness of the brake disc, the friction force disappears, and the brake is completely opened.
Furthermore, the wedge-shaped brake also comprises a base, a left wedge-shaped seat and a right wedge-shaped seat;
the left wedge-shaped seat and the right wedge-shaped seat are arranged on two sides of the base, the left wedge-shaped seat is provided with a first inclined surface, the right wedge-shaped seat is provided with a second inclined surface, and the first inclined surface and the second inclined surface are oppositely arranged;
the left brake block is provided with a first end surface and a second end surface, the first end surface is connected with the first inclined surface, the right brake block is provided with a third end surface and a fourth end surface, the third end surface is connected with the second inclined surface, and the second end surface and the fourth end surface are oppositely arranged;
the first brake pad is mounted on the second end face, the second brake pad is mounted on the fourth end face, and the friction surface of the first brake pad and the friction surface of the second brake pad are arranged in parallel;
the first power mechanism controls the left brake block to linearly move on the first inclined surface, the second power mechanism controls the right brake block to linearly move on the second inclined surface, and when the left brake block and the right brake block move, the first brake block and the second brake block are close to or far away from each other.
The first inclined plane and the second inclined plane form a wedge, when the brake is started until the brake pad and the brake disc generate friction force, the power mechanism stops working, the friction force can drive the brake pad to continue moving towards the direction of the wedge-shaped necking, the distance between the brake pads is made to be smaller and smaller, and therefore the friction force can be larger and larger, and finally the brake disc stops rotating.
When the brake block moves on the wedge seat, mechanical vibration can cause the brake block to slightly shake, so that the braking effect is influenced, the problem is further solved through further improvement, specifically, the first inclined plane is in fit connection with the first end face through a dovetail groove guide rail, and the second inclined plane is in fit connection with the third end face through a dovetail groove guide rail. Because the dovetail groove guide rail has the characteristics of high movement precision and stability, the brake block does not shake when moving on the wedge-shaped seat.
Compare traditional spring stopper, the utility model discloses not only avoided causing the malfunctioning drawback of stopper because of the spring inefficacy, higher than spring strength moreover, stability is stronger, and the life-span is longer.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a left (right) wedge base;
FIG. 3 is a schematic view of the left (right) brake pad structure;
fig. 4 is another schematic structural diagram of the present invention;
in the figure: 1. a base; 2. a left wedge seat; 3. a right wedge seat; 4. a left brake pad; 5. a right brake pad; 6. a first power mechanism; 7. a second power mechanism; 8. a first brake pad; 9. a second brake pad; 21. a first inclined plane; 31. a second inclined plane; 41. a first end face; 42. a second end face; 51. a third end face; 52. a fourth end surface.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1, the utility model relates to a wedge brake, which comprises a base 1, a left wedge base 2, a right wedge base 3, a left brake block 4, a right brake block 5, a first power mechanism 6, a second power mechanism 7, a first brake block 8 and a second brake block 9; the left wedge-shaped seat 2 and the right wedge-shaped seat 3 are identical in structure, the left brake block 4 and the right brake block 5 are identical in structure, and the first power mechanism 6 and the second power mechanism 7 are oil cylinders;
the left wedge-shaped seat 2 and the right wedge-shaped seat 3 are mounted on two sides of the base 1 and are provided with a first inclined surface 21 and a second inclined surface 31 which are opposite to each other, the first inclined surface 21 and the second inclined surface 31 are inclined surfaces, and an inclined surface slope angle is 80 degrees (as shown in fig. 4, the inclined surface slope angle is 100 degrees), and as shown in fig. 2, the first inclined surface 21 and the second inclined surface 31 are provided with dovetail bosses.
As shown in fig. 3, the left brake block 4 is provided with a first end surface 41 and a second end surface 42, the first end surface 41 is provided with a dovetail groove, the right brake block 5 is provided with a third end surface 51 and a fourth end surface 52, the third end surface 51 is provided with a dovetail groove, and the second end surface 42 and the fourth end surface 52 are oppositely arranged; the first inclined surface 21 is connected with the first end surface 41 in a dovetail groove clamping manner through a dovetail boss, and the second inclined surface 31 is connected with the third end surface 51 in a dovetail groove clamping manner through a dovetail boss; the dovetail groove guide rail has the characteristics of high movement precision and stability, so that the brake block does not shake when moving on the wedge-shaped seat, and the braking effect of the brake is ensured.
The first brake pad 8 and the second brake pad 9 have the same structure, the brake pad is composed of a friction layer and a steel plate, the second end face 42 and the fourth end face 52 are provided with notches, magnets are arranged in the notches, the brake pad is arranged in the notches and fixed in a way that the magnets adsorb the steel plate, and the friction surface of the first brake pad 8 and the friction surface of the second brake pad 9 are arranged in parallel;
the oil cylinder is fixedly installed at the upper end of the wedge-shaped seat, the upper end of the brake block is provided with an ear hole, and a piston rod of the oil cylinder is connected with the ear hole, so that the brake block is controlled to move on the wedge-shaped seat.
When the brake needs to be closed, the oil cylinder is started to enable the brake block to move downwards (as shown in figure 4, the brake block moves upwards), the distance between the brake pads can be gradually reduced, after the friction surfaces of the brake pads are contacted with the brake disc, friction force can be generated to enable the brake disc to decelerate, and when the distance between the brake pads is smaller than the thickness of the brake disc, the brake pads can clamp the brake disc to enable the brake disc to stop rotating; when the brake needs to be opened, the oil cylinder is started to enable the brake block to move upwards, and when the distance between the brake blocks is larger than the thickness of the brake disc, the friction force disappears, and the brake is completely opened. Compare traditional spring stopper, the utility model discloses not only avoided causing the malfunctioning drawback of stopper because of the spring inefficacy, higher than spring strength moreover, stability is stronger, and the life-span is longer.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (3)
1. A wedge brake characterized by: comprises a left brake block (4), a right brake block (5), a first power mechanism (6) and a second power mechanism (7);
a first brake pad (8) is installed on the left brake block (4), a second brake pad (9) is installed on the right brake block (5), and the first brake pad (8) and the second brake pad (9) are oppositely arranged;
first power unit (6) control left side brake block (4) linear motion, second power unit (7) control right side brake block (5) linear motion, work as left side brake block (4) with when right side brake block (5) remove, first brake block (8) with second brake block (9) draw close each other or keep away from.
2. The wedge brake of claim 1, wherein: the device also comprises a base (1), a left wedge-shaped seat (2) and a right wedge-shaped seat (3);
the left wedge-shaped seat (2) and the right wedge-shaped seat (3) are arranged on two sides of the base (1), the left wedge-shaped seat (2) is provided with a first inclined surface (21), the right wedge-shaped seat (3) is provided with a second inclined surface (31), and the first inclined surface (21) and the second inclined surface (31) are oppositely arranged;
the left brake block (4) is provided with a first end face (41) and a second end face (42), the first end face (41) is connected with the first inclined face (21), the right brake block (5) is provided with a third end face (51) and a fourth end face (52), the third end face (51) is connected with the second inclined face (31), and the second end face (42) and the fourth end face (52) are oppositely arranged;
the first brake pad (8) is mounted on the second end face (42), the second brake pad (9) is mounted on the fourth end face (52), and the friction surface of the first brake pad (8) and the friction surface of the second brake pad (9) are arranged in parallel;
first power unit (6) control left side brake block (4) linear motion on first inclined plane (21), second power unit (7) control right side brake block (5) are in linear motion on second inclined plane (31), work as left side brake block (4) with when right side brake block (5) remove, first brake block (8) with second brake block (9) draw close each other or keep away from.
3. The wedge brake of claim 2, wherein: the first inclined surface (21) is connected with the first end surface (41) in a matched mode through a dovetail groove guide rail, and the second inclined surface (31) is connected with the third end surface (51) in a matched mode through the dovetail groove guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921456683.6U CN210859627U (en) | 2019-09-03 | 2019-09-03 | Wedge brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921456683.6U CN210859627U (en) | 2019-09-03 | 2019-09-03 | Wedge brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210859627U true CN210859627U (en) | 2020-06-26 |
Family
ID=71308330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921456683.6U Active CN210859627U (en) | 2019-09-03 | 2019-09-03 | Wedge brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210859627U (en) |
-
2019
- 2019-09-03 CN CN201921456683.6U patent/CN210859627U/en active Active
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