CN210859615U - Hydraulic brake device - Google Patents
Hydraulic brake device Download PDFInfo
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- CN210859615U CN210859615U CN201921667745.8U CN201921667745U CN210859615U CN 210859615 U CN210859615 U CN 210859615U CN 201921667745 U CN201921667745 U CN 201921667745U CN 210859615 U CN210859615 U CN 210859615U
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- brake
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- band
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Abstract
The utility model discloses a hydraulic brake device, include: the brake band is arranged on the circumferential surface of the brake hub and tightly holds the brake hub, the fixed end of the brake band is arranged on the fixed seat, the locking end is in transmission connection with the driving assembly, the driving assembly is in transmission connection with the locking end of the brake band through the connecting plate and the locking connecting rod in sequence, the driving assembly acts to drive the connecting plate to rotate for a certain angle, the connecting plate drives the locking connecting rod to form a jacking force along the circumferential tangential direction of the brake hub on the locking end, and therefore the locking end of the brake band moves towards the fixed end to tightly press the brake hub, and brake braking is achieved; the pushing force of the locking connecting rod to the locking end is always in the circumferential tangential direction of the brake hub in the braking process, so that the locking end is always attached to the brake hub. The utility model discloses a brake equipment design cornerite can reach 340 at utmost, can overcome the problem that the actual cornerite of belt brake area diminishes in the braking process in prior art simultaneously.
Description
Technical Field
The utility model relates to a brake equipment technical field especially relates to a belt hydraulic brake device for ship machinery.
Background
The brake device is an indispensable device on large-scale ship deck machinery such as an anchor machine, a mooring winch, a towing winch and the like. When the speed of throwing out the anchor chain by the anchor puller reaches a certain value, the brake device is required to effectively brake the anchor chain which slides downwards; after the anchor machine is anchored, the brake device brakes and brakes the chain wheel tightly to prevent the anchor chain from falling due to dead weight. When the winch is tied up, the brake device releases the drum to brake; after the cable is wound, the brake device tightly brakes the winding drum to provide a supporting load; when the winch is used for releasing the cable, the hydraulic motor is started to control the manual reversing valve to release the cable, and the brake device releases the winding drum to brake.
A brake device that is commonly used in marine machinery is a band brake, which is a brake that generates a braking effect by contracting a brake band that surrounds a brake hub. The basic structure of the brake device is shown in figure 1, and comprises a brake hub 2 ', a brake band 1 ' tightly attached to the periphery of the brake hub 2 ' and embracing the brake hub 2 ', and a driving component 4 ', wherein one end of the brake band 1 ' is a fixed end 101 ', the other end of the brake band is a locking end 102 ', and the locking end 102 ' is in transmission connection with the driving component 4 ' through a connecting rod 3 '. When the brake is closed, the driving component 4 ' acts on the locking end 102 ' through the connecting rod 3 ', so that the brake band 1 ' holds the brake hub 2 ' tightly to form friction brake. The braking force F1 of the brake band 1 'to the brake hub 2' can be calculated by the following formula: f1 ═ F2 · (e)μα1), wherein F2 is the tightening force of the brake band, i.e. the pulling force applied to the locking end 102 'of the brake band 1', α is the wrap angle of the brake band, i.e. the wrap angle formed by the fixed end 101 'and the locking end 102' of the brake band 1 'in the circumferential direction of the brake hub 2', and mu is the friction coefficient, and the large braking force F1 is shown in the formulaThe small angle is in direct proportion to the size of the wrap angle α, the larger the wrap angle α is, the larger the braking force F1 of the brake band is, and the smaller the braking force F2 is, in the process of closing the brake band, the larger the wrap angle F1 is, the larger the brake band is, the smaller the brake band is, in the case that the size of the brake band F2 is not changed, the size of the braking force F1 is directly dependent on the size of α. however, in the band brake with the structure, after the brake band 1 'is stretched by the pulling force F2 of the connecting rod 3', the locking end 102 'can expand outwards to form a gap with the brake hub 2', the actual wrap angle α 'when the brake is closed (in a dotted line state in the figure) is reduced (namely α' < α).
Chinese patent publication No. CN103407551A discloses a hydraulic brake device, comprising: the hydraulic brake comprises an upper brake band, a lower brake band, an upper lug plate, a lower lug plate, an adjusting screw, an oil cylinder connecting plate and a hydraulic oil cylinder, wherein when the hydraulic oil cylinder extends out, the hydraulic oil cylinder drives the oil cylinder connecting plate to rotate by a certain amplitude, the oil cylinder connecting plate rotates by a certain angle, and the oil cylinder connecting plate pulls the upper lug plate downwards, so that the upper brake band compresses the machine hub; meanwhile, the adjusting screw rod pulls the lower lug plate upwards so as to drive the lower brake band to compress the machine hub, and therefore braking is achieved. In this way, the utility model discloses hydraulic brake device can break away from the inconvenience that manual brake device brought to and can realize remote brake control, improved operating personnel's security. The above-mentioned patent also suffers from the problem mentioned above that the locking end of the brake band is deflected outwardly from the brake hub during braking, resulting in a smaller actual wrap angle.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a hydraulic power's belt brake equipment, brake equipment's design cornerite can reach 340 at the utmost, can solve the brake area simultaneously and diminish the problem at the actual cornerite of braking in-process.
To the above problem, the utility model discloses a technical scheme be: provided is a hydraulic brake device including: the brake band is arranged on the circumferential surface of the brake hub and tightly holds the brake hub, the fixed end of the brake band is arranged on the fixed seat, the locking end of the brake band is in transmission connection with the driving assembly, the driving assembly is in transmission connection with the locking end of the brake band through a connecting plate and a locking connecting rod in sequence, the middle of the connecting plate is hinged to the fixed seat, one end of the connecting plate is connected with the driving assembly, the other end of the connecting plate is hinged to the locking connecting rod, the other end of the locking connecting rod is hinged to a locking end ear plate, and the locking end of the brake band is fixedly arranged on the locking end ear plate; when the driving assembly acts, the connecting plate is driven to rotate by a certain angle, and then the connecting plate drives the locking connecting rod to form a jacking force along the circumferential tangential direction of the brake hub on the locking end of the brake band, so that the locking end of the brake band moves towards the fixed end to press the brake hub, and brake is realized; and the pushing force of the locking connecting rod to the locking end is always in the circumferential tangential direction of the brake hub in the braking process, so that the locking end is always attached to the brake hub.
Preferably, the brake band includes brake band and lower brake band, it installs to go up the brake band brake wheel hub's last semicircle surface, brake band installs down brake wheel hub's lower circumference surface, the one end of going up the brake band is fixed, the other end is installed on last otic placode, the one end in brake band is installed down on locking end otic placode, the other end is installed under on the otic placode, it is articulated through the round pin axle with lower otic placode to go up the otic placode.
Preferably, the driving assembly comprises a hydraulic oil cylinder, and one end of the connecting plate is hinged to a piston of the hydraulic oil cylinder.
Preferably, a double-headed adjusting bolt is arranged between the piston of the hydraulic oil cylinder and the connecting plate, the connecting plate is hinged to the rotating joint, the thread turning directions of two ends of the double-headed adjusting bolt are opposite, one end of the double-headed adjusting bolt is screwed into the piston, the other end of the double-headed adjusting bolt is screwed into the rotating joint, and the relative distance between the piston and the end part of the connecting plate can be adjusted by rotating the adjusting bolt, so that the tightness of the brake band can be adjusted.
The utility model has the advantages that: 1. because the locking connecting rod is designed, the locking connecting rod applies the top thrust force along the tangential direction to the locking end of the brake band, the designed wrap angle of the brake band can be larger than that of the prior art, and can reach 340 degrees to the maximum extent, and further the braking force of the brake device can be larger; 2. when the brake is closed, the rotation of the connecting plate drives the locking connecting rod to push upwards, the stress of the locking end of the brake band is always in the tangential direction of the circumference of the brake hub, the locking end of the brake band is always attached to the brake hub, and the brake wrap angle cannot be reduced but increased due to the rotation of the connecting plate, so that the braking force is increased; 3. when the brake is opened, the rotation of the connecting plate drives the locking connecting rod to retract, the locking connecting rod drives the brake band to loosen along the tangential direction of the brake hub, so that the brake band is naturally and uniformly disengaged, the circumferential gap is uniform, and the resistance of the release winding drum is small; 4. the utility model discloses a brake equipment can realize long-range brake control, and operating safety is high.
Drawings
FIG. 1 is a schematic view of a prior art band brake;
fig. 2 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 3 is a diagram of a change state of a brake band wrap angle when the brake of the brake device of the embodiment 1 of the invention is closed;
fig. 4 is a schematic structural view of comparative example 1 of the present invention;
fig. 5 is a diagram showing a state of change of a wrap angle of a brake band when a brake is closed in the brake apparatus of comparative example 1 of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Example 1
Referring to fig. 2, an embodiment of the present invention includes:
a hydraulic brake device, comprising: brake band, fixing seat 5 and driving component; the brake band comprises an upper brake band 8 and a lower brake band 7, the upper brake band 8 is arranged on the upper semicircular surface of the brake hub 12, and the lower brake band 7 is arranged on the lower circumferential surface of the brake hub 12; one end of the upper brake band 8 is a fixed end, the other end of the upper brake band is mounted on the upper ear plate 13, the fixed end is mounted on the fixed end ear plate 9, one end of the lower brake band 7 is a locking end, the other end of the lower brake band is mounted on the lower ear plate 14, the locking end is mounted on the locking end ear plate 10, and the upper ear plate 13 is hinged to the lower ear plate 14 through a pin shaft; the fixed end ear plate 9 is hinged on the transition connecting rod 3, and the other end of the transition connecting rod 3 is hinged on the fixed seat 5; the driving assembly comprises a hydraulic oil cylinder 1, the hydraulic oil cylinder 1 is in transmission connection with the locking end of the lower brake band 7 through an oil cylinder connecting plate 4 and a locking connecting rod 6 in sequence, the middle part of the oil cylinder connecting plate 4 is hinged to the fixed seat 5, one end of the oil cylinder connecting plate 4 is connected with the driving assembly, the other end of the oil cylinder connecting plate 4 is hinged to the locking connecting rod 6, and the other end of the locking connecting rod 6 is hinged to a locking end lug plate 10; the double-head adjusting bolt is characterized in that a double-head adjusting bolt 2 is arranged between a piston of the hydraulic oil cylinder 1 and an oil cylinder connecting plate 4, the thread turning directions of two ends of the double-head adjusting bolt 2 are opposite, the oil cylinder connecting plate 4 is hinged to a rotary joint 15, one end of the double-head adjusting bolt 2 is screwed into the piston, the other end of the double-head adjusting bolt 2 is screwed into the rotary joint 15, and the relative distance between the piston and the end part of the oil cylinder connecting plate 4 can be adjusted by rotating the double-head adjusting bolt 2, so that the.
When a piston of the hydraulic oil cylinder 1 extends out, the oil cylinder connecting plate 4 is driven to rotate by a certain angle, and the oil cylinder connecting plate 4 drives the locking connecting rod 6 to form a jacking force along the tangential direction of the circumference of the brake hub 12 on the locking end of the lower brake band 7, so that the locking end of the lower brake band 7 moves towards the fixed end to further compress the brake hub 12, and brake is realized; the pushing force of the locking connecting rod 6 to the locking end is always in the circumferential tangential direction of the brake hub 12 in the braking process, so that the brake band is always attached to the brake hub 12.
Referring to fig. 3, when the brake device is closed, the rotation of the cylinder connecting plate 4 drives the locking link 6 to push the locking end upward, and the force F2 at the locking end of the brake band is always in the circumferential tangential direction of the brake hub 12, during this process, the actual wrap angle α ' of the brake band will not decrease due to the rotation of the cylinder connecting plate 4, but will further increase, i.e. α ' > α, when the locking end is located at the limit position (the dotted line state in the figure), α '. 302 ° during the brake closing process, it is assumed that F2 remains unchanged, and F1 increases with the change of α.
When the brake device is opened: the rotation of the oil cylinder connecting plate 4 drives the locking connecting rod 6 to retract downwards, the locking connecting rod 6 drives the locking end to loosen along the tangential direction of the brake hub 12, so that the lower brake band 7 is naturally and uniformly disengaged, the circumferential clearance is uniform, and the resistance of a releasing winding drum is small. Meanwhile, remote brake control can be realized by adopting hydraulic drive, and the operation safety is high.
Example 2
The utility model discloses the structure of embodiment 2 is the same with embodiment 1, but the design cornerite α 2 of brake area is 330 when brake equipment closes, and actual cornerite α 2 '> α 2, when the locking end is located extreme position, α 2' ═ 332 closed in-process of braking, α 2 grow, and brake force also becomes along with α 2 grow and grow.
Comparative example 1
Referring to fig. 4, compared with the above embodiments, the comparative example of the present invention has the same structure, but does not have a locking connecting rod, and the cylinder connecting plate 4a is directly hinged to the locking end ear plate 6 a.
Referring to fig. 5, the design wrap angle α 3 of the brake band of the brake device of this comparative example is 300 °, when the brake device is closed, the locking end of the lower brake band 7a is deflected outward from the brake hub 12a due to the rotation of the cylinder connecting plate 4a, so that the actual wrap angle α 3 '< α 3 is achieved, and when the locking end is located at the limit position (dotted line state in the figure), α 3' < 295 °. during the brake closing process, assuming that the force F2 applied to the locking end of the brake band remains unchanged, F1 becomes smaller with the change of α 3.
The same amount of brake band tightening side force F2 was applied to the brake band locking ends of example 1, example 2, and comparative example 1 above, and it was assumed that F2 remained unchanged during brake closing. The magnitude of the braking force F1 at the starting position and the limit position of the brake band for each comparative example and each comparative example is shown in the following table (set friction coefficient μ ═ 0.35). As can be seen from the table, in both embodiment 1 and embodiment 2, the braking force F1 becomes larger as the wrap angle becomes larger when the brake is closed; in comparative example 1, the braking force F1 decreased with the wrap angle during the brake closing process.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (4)
1. A hydraulic brake device, comprising: the brake band is arranged on the circumferential surface of the brake hub and tightly holds the brake hub, the fixed end of the brake band is arranged on the fixed seat, and the locking end of the brake band is in transmission connection with the driving assembly; when the driving assembly acts, the connecting plate is driven to rotate by a certain angle, and then the connecting plate drives the locking connecting rod to form a jacking force along the circumferential tangential direction of the brake hub on the locking end of the brake band, so that the locking end of the brake band moves towards the fixed end to press the brake hub, and brake is realized; and the pushing force of the locking connecting rod to the locking end is always in the circumferential tangential direction of the brake hub in the braking process, so that the locking end is always attached to the brake hub.
2. The hydraulic brake device according to claim 1, wherein the brake band includes an upper brake band and a lower brake band, the upper brake band is mounted on the upper semicircular surface of the brake hub, the lower brake band is mounted on the lower circumferential surface of the brake hub, one end of the upper brake band is a fixed end, the other end is mounted on the upper lug plate, one end of the lower brake band is a locking end, the other end is mounted on the lower lug plate, and the upper lug plate and the lower lug plate are hinged through a pin shaft.
3. The hydraulic brake apparatus of claim 1, wherein the drive assembly includes a hydraulic ram, and one end of the connecting plate is hinged to a piston of the hydraulic ram.
4. The hydraulic brake device according to claim 1, wherein the driving assembly includes a hydraulic cylinder, a stud adjusting bolt is disposed between a piston of the hydraulic cylinder and a connecting plate, the connecting plate is hinged to a rotary joint, the thread directions of both ends of the stud adjusting bolt are opposite, one end of the stud adjusting bolt is screwed into the piston, the other end of the stud adjusting bolt is screwed into the rotary joint, and by rotating the adjusting bolt, the relative distance between the piston and the end of the connecting plate can be adjusted, so that the tightness of the brake band can be adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921667745.8U CN210859615U (en) | 2019-10-08 | 2019-10-08 | Hydraulic brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921667745.8U CN210859615U (en) | 2019-10-08 | 2019-10-08 | Hydraulic brake device |
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| Publication Number | Publication Date |
|---|---|
| CN210859615U true CN210859615U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921667745.8U Active CN210859615U (en) | 2019-10-08 | 2019-10-08 | Hydraulic brake device |
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| CN (1) | CN210859615U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594318A (en) * | 2019-10-08 | 2019-12-20 | 宁波新宏液压有限公司 | Hydraulic brake device |
| CN111764458A (en) * | 2020-07-20 | 2020-10-13 | 淄博大力矿山机械有限公司 | Positioning method for shovel of rock loader |
-
2019
- 2019-10-08 CN CN201921667745.8U patent/CN210859615U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594318A (en) * | 2019-10-08 | 2019-12-20 | 宁波新宏液压有限公司 | Hydraulic brake device |
| CN111764458A (en) * | 2020-07-20 | 2020-10-13 | 淄博大力矿山机械有限公司 | Positioning method for shovel of rock loader |
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