CN115838138A - Hydraulic disc type brake double-acting brake caliper - Google Patents
Hydraulic disc type brake double-acting brake caliper Download PDFInfo
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- CN115838138A CN115838138A CN202111097089.4A CN202111097089A CN115838138A CN 115838138 A CN115838138 A CN 115838138A CN 202111097089 A CN202111097089 A CN 202111097089A CN 115838138 A CN115838138 A CN 115838138A
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Abstract
The invention discloses a hydraulic disc type brake double-acting brake caliper, which comprises a brake disc, wherein a left brake shoe and a right brake shoe are symmetrically arranged on two sides of the brake disc, one sides of the left brake shoe and the right brake shoe, which are far away from the brake disc, are respectively and movably connected with a left connecting rod and a right connecting rod, the left connecting rod and the right connecting rod are respectively and movably connected to a hydraulic disc type brake caliper frame, one ends of the left connecting rod and the right connecting rod, which are far away from the left brake shoe and the right brake shoe, are respectively connected to an air cylinder driving mechanism through pin shafts, and the air cylinder driving mechanism is positioned between the left connecting rod and the right connecting rod; the double-acting brake caliper integrates the two into one, reduces the number of the brake calipers, requires smaller installation space, improves the appearance quality of the winch and effectively reduces the production cost.
Description
Technical Field
The invention belongs to the technical field of petroleum drilling and production equipment, and relates to a hydraulic disc type brake double-acting brake caliper.
Background
The hydraulic disc brake of the existing oil drilling winch generally comprises working tongs and safety tongs, wherein the working tongs are used for working braking, the safety tongs are used for parking braking, and the two kinds of tongs cannot be lacked during configuration due to different functions, so that the installation space occupied by the braking tongs is large, the arrangement is difficult, and the appearance quality of the winch is poor.
The double-acting brake caliper can realize work braking and parking braking by adopting one brake caliper, the performance of the double-acting brake caliper is the same as that of the brake caliper in use at present, and the control of a brake system does not need to be changed. The double-acting brake caliper has the advantages that: the quantity is half of original brake caliper, and manufacturing cost reduces by a wide margin, has practiced thrift brake caliper installation space, and the winch structure is compacter, and whole winch overall arrangement is more reasonable, and winch appearance quality is better.
Disclosure of Invention
The invention aims to provide a hydraulic disc type brake double-acting brake caliper, which realizes that one brake caliper has the functions of working brake and parking brake at the same time, and solves the defects of the existing brake caliper in the background technology.
The invention adopts the technical scheme that the hydraulic disc type brake double-acting brake caliper comprises a brake disc, wherein a left brake shoe and a right brake shoe are symmetrically arranged on two sides of the brake disc, one sides of the left brake shoe and the right brake shoe, which are far away from the brake disc, are respectively and movably connected with a left connecting rod and a right connecting rod, the left connecting rod and the right connecting rod are respectively and movably connected onto a hydraulic disc type brake caliper frame, one ends of the left connecting rod and the right connecting rod, which are far away from the left brake shoe and the right brake shoe, are respectively connected onto an air cylinder driving mechanism through pin shafts, and the air cylinder driving mechanism is positioned between the left connecting rod and the right connecting rod.
The invention is also characterized in that:
wherein, one sides of the left brake shoe and the right brake shoe far away from the brake disc are respectively connected with the left connecting rod and the right connecting rod through pin shafts;
the left brake shoe and the right brake shoe are respectively welded on one sides, far away from the brake disc, of the left brake shoe and the right brake shoe, and the left brake shoe and the right brake shoe are respectively connected with the left connecting rod and the right connecting rod through pin shafts;
the air cylinder driving mechanism comprises a secondary oil cylinder, a disc spring is embedded in the secondary oil cylinder, a piston rod is embedded in the disc spring, the piston rod is in clearance fit with the secondary oil cylinder, one end, far away from the secondary oil cylinder, of the piston rod is connected with a left connecting rod through a pin shaft, the air cylinder driving mechanism further comprises a primary oil cylinder, one end, far away from the piston rod, of the secondary oil cylinder is embedded in an inner cavity of the primary oil cylinder and is in clearance fit with the primary oil cylinder, one end, far away from the secondary oil cylinder, of the primary oil cylinder is connected with an adjusting nut, the adjusting nut is in interference fit with the primary oil cylinder, the adjusting nut is connected with a push rod, and the push rod is connected with a right connecting rod through a pin shaft;
wherein the rod body of the piston rod is fixedly sleeved with a ring sleeve, and the diameter of the ring sleeve is the same as that of the outer ring of the disc spring;
wherein, one side of the cylinder body of the primary oil cylinder, which is close to the disc spring, is provided with an exhaust hole which is communicated with the inner cavity of the primary oil cylinder;
wherein the adjusting nut is in threaded connection with the ejector rod;
one end of the secondary oil cylinder close to the piston rod is connected with an end cover through a bolt, the piston rod penetrates through the end cover to be in clearance fit with the end cover, the primary oil cylinder close to the secondary oil cylinder is connected with an end cover A12 through a bolt, and the secondary oil cylinder penetrates through the end cover A12 to be in clearance fit with the end cover A12;
the end cover is positioned on two sides of the piston rod and is respectively provided with an oil hole and an exhaust hole A, the oil hole and the exhaust hole A are communicated with the inner cavity of the secondary oil cylinder, and one end of the primary oil cylinder, which is far away from the secondary oil cylinder, is respectively provided with an oil hole A and an exhaust hole B.
The invention has the beneficial effects that:
the original hydraulic disc type brake working pliers and the safety pliers are independently separated, and the number of the original hydraulic disc type brake working pliers and the number of the safety pliers are large.
Drawings
FIG. 1 is a schematic structural view of a hydraulic disc brake double-acting caliper according to the present invention;
FIG. 2 is an exploded view of a hydraulic cylinder of a hydraulic disc brake double-acting caliper according to the present invention;
FIG. 3 is a schematic view of an initial installation position of a double-acting caliper for a hydraulic disc brake according to the present invention;
FIG. 4 is a partially enlarged schematic view of an initial installation position of a double-acting caliper for a hydraulic disc brake according to the present invention;
FIG. 5 is a schematic illustration of the service braking position of a hydraulic disc brake double-acting caliper of the present invention;
FIG. 6 is a schematic view of the parking brake position of a double-acting caliper of a hydraulic disc brake of the present invention.
In the figure, 1, a brake disc, 2, a left brake shoe, 3, a right brake shoe, 4, a left brake shoe, 5, a right brake shoe, 6, a left connecting rod, 7, a right connecting rod, 8, a piston rod, 9, a mandril, 10, an end cover, 11, a secondary oil cylinder, 12, an end cover, 13, a disc spring, 14, a primary oil cylinder, 15, an adjusting nut, 16, a pin shaft, 17, a pin shaft A,18, a pin shaft B,19, an oil hole, 20, an oil hole A,21, an exhaust hole, 22, an exhaust hole A,23 and an exhaust hole B.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention provides a hydraulic disc type brake double-acting brake caliper, as shown in figures 1 and 2, a left brake shoe 2 is connected with a left brake shoe 4 in a welding mode, the left brake shoe 4 is connected with a left connecting rod 6 through a pin shaft 16, the left connecting rod 6 is connected with a piston rod 8 through an end cover B18, the piston rod 8 is in clearance fit with a secondary oil cylinder 11, the piston rod 8 can slide left and right along the axial direction of the secondary oil cylinder 11, a disc spring 13 is arranged on the right side of the piston rod 8, and the disc spring 13 and the piston rod 8 are arranged in the inner cavity of the secondary oil cylinder 11. The end cover 10 is installed on the left side of the piston rod 8, the end cover 10 is in clearance fit with the piston rod 8, the end cover 10 is fixed at the end portion of the left side of the secondary oil cylinder 11 through a bolt, the secondary oil cylinder 11 is installed in an inner cavity of the primary oil cylinder 14, the secondary oil cylinder 11 is in clearance fit with the primary oil cylinder 14, the adjusting nut 15 is installed on the right side of the primary oil cylinder 14, the primary oil cylinder 14 is in interference fit with the adjusting nut 15, the adjusting nut 15 is installed on the left side of the ejector rod 9, the adjusting nut 15 is in threaded connection with the ejector rod 9, and the ejector rod 9 can move left and right in the axial direction. The ejector rod 9 is connected with the right connecting rod 7 through an end cover B18, the right connecting rod 7 is connected with the right brake shoe 5 through a pin shaft 16, and the right brake shoe 3 is connected with the right brake shoe 5 in a welding mode; one side of the cylinder body of the primary oil cylinder 14, which is close to the disc spring 13, is provided with an exhaust hole 21, the exhaust hole 21 is communicated with the inner cavity of the primary oil cylinder 14, and the exhaust hole 21 is used for eliminating air pressure generated when the disc spring 13 is compressed;
the left connecting rod 6 and the right connecting rod 7 are fixed on the hydraulic disc brake caliper frame through an end cover A17, and the left connecting rod 6 and the right connecting rod 7 can respectively rotate around the end cover A17;
as shown in fig. 3 and 4, the installation process of the double-acting brake caliper is as follows:
pressure oil enters the inner cavity of the secondary oil cylinder 11 from the oil hole 19, the oil pressure generates thrust to push the piston rod 8 to slide rightwards until reaching pressure balance with the disc spring 13, and the oil pressure is P0 at the moment. The clearance S3=0 between the right end of the piston rod 8 and the secondary oil cylinder 11, the clearance S2=0 between the right end of the secondary oil cylinder 11 and the primary oil cylinder 14, the clearance A1 between the left brake shoe 2 and the right brake shoe 3, the thickness A0 of the brake disc 1, and A1 > A0. The gap between the left end of the primary oil cylinder 14 and the secondary oil cylinder 11 is S1, and S1 is more than 0. At the moment, the double-acting brake caliper is in an initial installation position;
as shown in fig. 5, the double-acting brake caliper realizes the following specific implementation of the working braking process:
an oil hole A20 and an exhaust hole B23 are respectively formed in one end, far away from the secondary oil cylinder 11, of the primary oil cylinder 14, and the exhaust hole B23 is used for eliminating air pressure generated when the oil hole A20 enters pressure oil;
when pressure oil P1 enters an inner cavity of the primary oil cylinder 14 from the oil hole A20, the secondary oil cylinder 11 slides leftwards under the thrust of the pressure oil, the secondary oil cylinder 11 pushes the piston rod 8 to extend leftwards, the piston rod 8 rotates around the end cover A17 to drive the left connecting rod 6 to rotate, the left connecting rod 6 drives the left brake shoe 4 to rotate rightwards, the left brake shoe 4 drives the left brake shoe 2 to rotate rightwards to press the brake disc 1 through friction force f1, and braking is achieved;
meanwhile, the gap S2 between the right end of the secondary oil cylinder 11 and the primary oil cylinder 14 is gradually increased from zero, and the disc spring 13 is continuously compressed until the gap S1=0 between the left end of the primary oil cylinder 14 and the secondary oil cylinder 11 is stopped;
the primary oil cylinder 14 slides rightwards under the thrust of pressure oil, the primary oil cylinder 14 pushes the ejector rod 9 to extend rightwards, the ejector rod 9 rotates around the end cover A17 to drive the right connecting rod 7 to rotate, the right connecting rod 7 drives the right brake shoe 5 to rotate leftwards, and the right brake shoe 5 drives the right brake shoe 3 to rotate leftwards to press the brake disc 1 through friction force f1, so that braking is realized;
at this time A1= A0, the double-acting brake caliper is in the service braking position.
The friction force f1 is in a direct proportional relation with the oil pressure P1, when the oil pressure is reduced to P1=0, under the action of the disc spring 13, the gap between the right end of the secondary oil cylinder 11 and the primary oil cylinder 14 is reduced to S2=0, the secondary oil cylinder 11 and the primary oil cylinder 14 return to the initial position, the left brake shoe 2 and the right brake shoe 3 are separated from the brake disc 1, and at the moment, the double-acting brake caliper is in an initial opening state.
As shown in fig. 6, the parking brake process of the double-acting brake caliper is implemented as follows:
when the double-acting brake caliper is at an installation initial position, when oil is drained from an inner cavity on the left side of the secondary oil cylinder 11, the oil pressure is reduced to P0=0, the disc spring 13 extends gradually, the disc spring 13 pushes the piston rod 8 to slide towards the left side, and a gap S3 between the right end of the piston rod 8 and the secondary oil cylinder 11 is gradually increased from zero. And simultaneously, the disc spring 13 pushes the secondary oil cylinder 11 to slide towards the right side. The piston rod 8 rotates around the end cover A17 to drive the left connecting rod 6 to rotate, the left connecting rod 6 drives the left brake shoe 4 to rotate rightwards, the left brake shoe 4 drives the left brake shoe 2 to rotate rightwards, and the brake disc 1 is pressed tightly through friction force f2, so that braking is achieved.
Meanwhile, the secondary oil cylinder 11 pushes the primary oil cylinder 14 to slide rightwards, the primary oil cylinder 14 pushes the ejector rod 9 to extend rightwards, the ejector rod 9 rotates around the end cover A17 to drive the right connecting rod 7 to rotate, the right connecting rod 7 drives the right brake shoe 5 to rotate leftwards, and the right brake shoe 5 drives the right brake shoe 3 to rotate leftwards to press the brake disc 1 through friction force f2, so that braking is achieved.
At this time A1= A0, the double-acting caliper is in the parking brake position.
The end cover 10 is provided with an oil hole 19 and an exhaust hole A22 at two sides of the piston rod 8, pressure oil enters the inner cavity of the secondary oil cylinder 11 from the oil hole 19, the oil hole 19 and the exhaust hole A22 are communicated with the inner cavity of the secondary oil cylinder 11, the exhaust hole A22 is used for eliminating air pressure generated when the oil hole 19 enters the pressure oil, and when the oil pressure is increased to P0, the oil pressure generates thrust to push the piston rod 8 to slide rightwards and push the end cover 10 to slide leftwards. The disc spring 13 is compressed until the clearance S3 between the right end of the piston rod 8 and the secondary cylinder 11 is gradually reduced to zero. The piston rod 8 rotates around the end cover A17 to drive the left connecting rod 6 to rotate, the left connecting rod 6 drives the left brake shoe 4 to rotate leftwards, the left brake shoe 4 drives the left brake shoe 2 to rotate leftwards, the left brake shoe 2 is separated from the brake disc 1, brake loosening is achieved, and the double-acting brake caliper returns to an installation initial position;
the end cover 10 slides leftwards to drive the secondary oil cylinder 11 to slide leftwards, a negative pressure cavity is formed between the leftward sliding of the secondary oil cylinder 11 and the primary oil cylinder 14, the primary oil cylinder 14 slides leftwards immediately, the primary oil cylinder 14 drives the ejector rod 9 to move leftwards through the adjusting nut 15, the ejector rod 9 rotates around the end cover A17 to drive the right connecting rod 7 to rotate, the right connecting rod 7 drives the right brake shoe 5 to rotate clockwise rightwards, the right brake shoe 5 drives the right brake shoe 3 to rotate rightwards to be separated from the brake disc 1, and the brake loosening is achieved.
The frictional force f2 is in direct proportion to the oil pressure P0.
Claims (9)
1. The utility model provides a two effect brake caliper of hydraulic disc brake, includes brake disc (1), its characterized in that, brake disc (1) bilateral symmetry is provided with left brake shoe (2) and right brake tile (3), one side that brake disc (1) was kept away from in left brake shoe (2) and right brake tile (3) has left connecting rod (6) and right connecting rod (7) swing joint respectively, and left connecting rod (6) and right connecting rod (7) swing joint respectively are on hydraulic disc brake caliper frame, and left connecting rod (6) and right connecting rod (7) keep away from the one end of left brake shoe (2) and right brake tile (3) and pass through round pin hub connection respectively on cylinder actuating mechanism, and cylinder actuating mechanism is located between left connecting rod (6) and right connecting rod (7).
2. A double-acting brake caliper for a hydraulic disc brake according to claim 1, characterized in that the sides of the left brake shoe (2) and the right brake shoe (3) away from the brake disc (1) are connected with a left connecting rod (6) and a right connecting rod (7) respectively by a pin.
3. A double-acting brake caliper for a hydraulic disc brake according to claim 1, wherein a left brake shoe (4) and a right brake shoe (5) are respectively welded on one sides of the left brake shoe (2) and the right brake shoe (3) far away from the brake disc (1), and the left brake shoe (4) and the right brake shoe (5) are respectively connected with the left connecting rod (6) and the right connecting rod (7) through pin shafts.
4. The hydraulic disc type brake double-acting brake caliper according to claim 1, wherein the cylinder driving mechanism comprises a secondary oil cylinder (11), a disc spring (13) is embedded in the secondary oil cylinder (11), a piston rod (8) is embedded in the disc spring (13), the piston rod (8) is in clearance fit with the secondary oil cylinder (11), one end, away from the secondary oil cylinder (11), of the piston rod (8) is connected with the left connecting rod (6) through a pin shaft, the hydraulic disc type brake double-acting brake caliper further comprises a primary oil cylinder (14), one end, away from the piston rod (8), of the secondary oil cylinder (11) is embedded in an inner cavity of the primary oil cylinder (14) and is in clearance fit with the primary oil cylinder (14), one end, away from the secondary oil cylinder (11), of the primary oil cylinder (14) is connected with an adjusting nut (15), the adjusting nut (15) is in interference fit with the primary oil cylinder (14), the adjusting nut (15) is connected with the ejector rod (9), and the ejector rod (9) is connected with the right connecting rod (7) through a pin shaft.
5. A double-acting brake caliper for hydraulic disc brakes according to claim 4, characterized in that said rod body of said piston rod (8) is fixedly sleeved with a collar, said collar having the same diameter as the outer ring of said disc spring (13).
6. A pair of hydraulic disc type brake double-acting brake calipers according to claim 4, characterized in that one side of the cylinder body of the primary cylinder (14) close to the disc spring (13) is provided with an exhaust hole (21), and the exhaust hole (21) is communicated with the inner cavity of the primary cylinder (14).
7. Double-acting brake calliper according to claim 4, wherein the adjusting nut (15) is screwed to the tappet (9).
8. A double-acting brake caliper for a hydraulic disc brake according to claim 4, wherein an end cover (10) is bolted to one end of the secondary cylinder (11) close to the piston rod (8), the piston rod (8) passes through the end cover (10) to be in clearance fit with the end cover (10), an end cover A (12) is bolted to the primary cylinder (14) close to the secondary cylinder (11), and the secondary cylinder (11) passes through the end cover A (12) to be in clearance fit with the end cover A (12).
9. The double-acting brake caliper for the hydraulic disc brake as claimed in claim 7, wherein the end cap (10) is provided with an oil hole (19) and an exhaust hole A (22) at two sides of the piston rod (8), the oil hole (19) and the exhaust hole A (22) are communicated with an inner cavity of the secondary cylinder (11), and the end of the primary cylinder (14) far away from the secondary cylinder (11) is provided with an oil hole A (20) and an exhaust hole B (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111097089.4A CN115838138A (en) | 2021-09-18 | 2021-09-18 | Hydraulic disc type brake double-acting brake caliper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111097089.4A CN115838138A (en) | 2021-09-18 | 2021-09-18 | Hydraulic disc type brake double-acting brake caliper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115838138A true CN115838138A (en) | 2023-03-24 |
Family
ID=85575151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111097089.4A Pending CN115838138A (en) | 2021-09-18 | 2021-09-18 | Hydraulic disc type brake double-acting brake caliper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115838138A (en) |
-
2021
- 2021-09-18 CN CN202111097089.4A patent/CN115838138A/en active Pending
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