CN214296311U - Brake device - Google Patents
Brake device Download PDFInfo
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- CN214296311U CN214296311U CN202023345613.9U CN202023345613U CN214296311U CN 214296311 U CN214296311 U CN 214296311U CN 202023345613 U CN202023345613 U CN 202023345613U CN 214296311 U CN214296311 U CN 214296311U
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- brake
- brake shoe
- brake shoes
- shoes
- shoe
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Abstract
The utility model discloses a braking device, which comprises a brake disc, a brake shoe set, a brake drum and a telescopic component, wherein the brake shoe set comprises a pair of brake shoes which are arranged oppositely, and the first ends of the two brake shoes are connected through a first elastic piece so as to ensure that the two brake shoes have tendency force which is close to each other; the telescopic assembly is connected to the brake disc and is positioned between the first ends of the two brake shoes; the brake disc is provided with a supporting shaft, and the first elastic part comprises two parts, wherein one end of each part is connected with the brake shoe, and the other end of each part is connected with the supporting shaft; the second ends of the two brake shoes are connected in a pivoting mode, the telescopic assembly is provided with two piston rods which are arranged opposite to the corresponding brake shoes respectively, and each piston rod can independently do telescopic motion.
Description
Technical Field
The utility model relates to a braking technical field especially relates to a arresting gear for tricycle.
Background
At present, most of drum type oil braking wheel braking devices adopted by tricycles are single-wheel cylinder single-pipeline wheel braking devices; mainly comprises a brake disc, a brake shoe, a wheel cylinder, a push rod and the like. Because the wheel cylinder is of a single-cavity single-piston structure or a single-cavity double-piston structure and the tricycle is provided with only one drive axle, the tricycle is provided with only one single-loop service brake pipeline system, and once a loop of the system fails, a brake device loses a brake function, so that potential safety hazards are brought to the running safety of a vehicle.
Disclosure of Invention
The present solution addresses the above-mentioned problems and needs and provides a brake device which achieves the above-mentioned technical objectives and brings other technical effects due to the following technical features.
The utility model provides a braking device, which comprises a brake disc, a brake shoe set and a telescopic component,
the brake disc is fixedly connected to the rear axle housing;
the brake shoe set is connected to the brake disc and comprises a pair of brake shoes which are arranged oppositely, and the first ends of the two brake shoes are connected through a first elastic piece so that the two brake shoes have tendency force which is close to each other;
the brake disc is fixedly connected with the rear axle shaft and can be pivotally connected to the rear axle housing through a bearing, and the brake disc is suitable for being sleeved on the outer side of the brake shoe set;
the telescopic assembly is positioned between the first ends of the two brake shoes and comprises a cylinder body and a piston rod which is telescopic in the cylinder body;
the brake disc is provided with a supporting shaft, the first elastic part comprises two parts, one end of each part is connected with the brake shoe, and the other end of each part is connected with the supporting shaft;
the second ends of the two brake shoes are relatively pivotally coupled,
the cylinder body is connected with the brake disc, two piston rods are arranged and are respectively opposite to the corresponding brake shoes, each piston rod can independently do telescopic motion,
when braking is needed, at least one piston rod moves towards the corresponding brake shoe, so that the first ends of the two brake shoes move in the direction away from each other and abut against the brake drum.
In the technical scheme, the two brake shoes are suspended on the brake disc through the first elastic piece, when braking is needed, the two piston rods of the telescopic assembly can synchronously extend out, so that the two brake shoes move in the direction away from each other and abut against the brake drum, and the purpose of braking is achieved; once one of the piston rods fails, the other piston rod extends out, and in the process, the two brake shoes arranged in a suspension manner rotate around the support shaft under the action of the piston rods, so that the two brake shoes can move towards the brake drum and are abutted against the brake drum, and the purpose of braking is also achieved; the braking device is more reliable in braking, avoids potential safety hazards caused by braking failure, and is good in braking effect.
In addition, according to the utility model discloses a arresting gear can also have following technical characterstic:
in one example of the present invention, the,
a first accommodating cavity and a second accommodating cavity which are independent of each other are defined in the cylinder body;
the piston rod is arranged in the first accommodating cavity and the second accommodating cavity respectively.
In an example of the present invention, the present invention further includes:
and the second elastic piece is positioned at the second ends of the brake shoes, one end of the second elastic piece is connected with one brake shoe, and the other end of the second elastic piece is connected with the other brake shoe, so that the first ends of the two brake shoes have the tendency of moving towards the direction close to each other.
In an example of the present invention, the present invention further includes:
one end of the push rod is movably connected with one of the brake shoes, and the other end of the push rod is movably connected with the other brake shoe.
In an example of the present invention, the push rod is connected to the brake shoe set in a snap-fit manner, and one of the push rod and the brake shoe is provided with an insertion groove, and the other is provided with a snap-fit piece matched with the insertion groove.
The utility model discloses an in the example, be located still dispose the joint groove on the brake shoe piece, the push rod adaptation is in the joint inslot.
In an example of the present invention, the second elastic member includes:
a torsion spring having a first pin and a second pin,
the first pin is connected with one brake shoe, and the second pin is connected with the other brake shoe;
under the action of the torsion force of the torsion spring, the first ends of the two brake shoes have the tendency of moving towards the direction close to each other.
In an example of the present invention, the present invention further includes:
a guide rod is arranged between the two brake shoes and close to the first end, clamping grooves extending along the axial direction are respectively formed in the two ends of the guide rod, and the clamping grooves are respectively connected with the corresponding brake shoes in a clamping manner;
the depth of the clamping groove is larger than the opening and closing stroke of the brake shoe.
In an example of the present invention, the present invention further includes:
a third elastic member coupled to the guide rod and having one end abutting against one of the brake shoes and the other end abutting against the other of the brake shoes;
when the third elastic member is subjected to the pressing force of the two brake shoes, the third elastic member has a tendency to drive the two brake shoes to move away from each other.
In an example of the present invention, a protrusion extending toward a symmetry axis of the brake disc is formed on the brake shoe, so that a connection groove is formed on the brake shoe, and the guide rod is disposed in the connection groove.
The following description of the preferred embodiments of the present invention will be made in detail with reference to the accompanying drawings, so that the features and advantages of the invention can be easily understood.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. The drawings are intended to depict only some embodiments of the invention, and not all embodiments of the invention are limited thereto.
Fig. 1 is a schematic structural diagram of a braking device according to an embodiment of the present invention.
List of reference numerals:
a brake device 100;
a brake disk 10;
a support shaft 11;
a brake shoe set 20;
a brake shoe 201;
a first end 21;
a second end 22;
a mounting hole 23;
a snap groove 24;
the projections 25;
a telescoping assembly 30;
a piston rod 31;
a cylinder 32;
the first accommodation chamber 321;
a second accommodating chamber 322;
a first elastic member 40;
a second elastic member 50;
a push rod 60;
a guide rod 70;
and a third elastic member 80.
Detailed Description
In order to make the technical solution of the present invention, its purpose, technical solution and advantages become clearer, the drawings of the embodiments of the present invention will be combined hereinafter, and the technical solution of the embodiments of the present invention will be clearly and completely described. Like reference symbols in the various drawings indicate like elements. It should be noted that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The utility model discloses a brake device 100, which comprises a brake disc 10, a brake shoe set 20, a brake drum (not shown in the figure) and a telescopic component 30,
the brake disc 10 is fixedly connected to a rear axle housing; wherein the brake disc 10 includes a bottom plate and a brake drum formed in a circumferential direction of the bottom plate;
the brake shoe set 20 is coupled to the brake disc 10 and includes a pair of oppositely disposed brake shoes 201, and the first ends 21 of the two brake shoes 201 are coupled by the first elastic member 40 to make the two brake shoes 201 have a tendency to approach each other;
the brake drum is fixedly connected with a rear axle shaft and can be pivotally connected to the rear axle housing through a bearing, and the brake drum is suitable for being sleeved on the outer side of the brake shoe set 20;
the telescopic assembly 30 is located between the first ends 21 of the two brake shoes 201, and comprises a cylinder 32 and a piston rod 31 which is telescopic in the cylinder 32;
a support shaft 11 is arranged on the brake disc 10, and the first elastic element 40 comprises two parts, one end of each part is connected with the brake shoe 201, and the other end is connected with the support shaft 11;
the second ends 22 of the two brake shoes 201 are relatively pivotally coupled,
the cylinder 32 is connected with the brake disc 10, the two piston rods 31 are respectively arranged opposite to the corresponding brake shoes 201, and each piston rod 31 can independently do telescopic motion,
when braking is needed, at least one of the piston rods 31 moves towards the corresponding brake shoe 201, so that the first ends 21 of the two brake shoes 201 move away from each other and abut against the brake drum.
That is, the two brake shoes 201 are suspended on the brake disc 10 by the first elastic member 40, and when braking is required, the two piston rods 31 of the telescopic assembly can synchronously extend, so that the two brake shoes 201 move away from each other and abut against a brake drum, thereby achieving the purpose of braking; once one of the piston rods 31 fails, the other piston rod 31 makes an extending motion, in the process, the two brake shoes 201 arranged in a floating manner rotate around the support shaft 11 under the action of the piston rod 31, so that the two brake shoes 201 can also move towards the brake drum and abut against the brake drum, and the purpose of braking is also achieved; the braking device 100 is more reliable in braking, avoids potential safety hazards caused by braking failure, and is good in braking effect.
In one example of the present invention, the,
a first accommodation chamber 321 and a second accommodation chamber 322 which are independent of each other are defined in the cylinder body 32;
the piston rod 31 is disposed in the first accommodating cavity 321 and the second accommodating cavity 322, respectively.
When braking is needed, at least one of the piston rods 31 moves towards the corresponding brake shoe 201, so that the first ends 21 of the two brake shoes 201 move away from each other and abut against the brake drum;
that is, the two brake shoes 201 are suspended on the brake disc 10 by the first elastic member 40, and when braking is required, the two piston rods 31 of the telescopic assembly respectively extend out of the first accommodating cavity 321 and the second accommodating cavity 322 synchronously, so that the two brake shoes 201 move away from each other and abut against a brake drum, thereby achieving the purpose of braking; once one of the piston rods 31 fails, the other piston rod 31 extends out of the first accommodating cavity 321 or the second accommodating cavity 322, and in the process, the two brake shoes 201 arranged in a floating manner rotate around the support shaft 11 under the action of the piston rod 31, so that the two brake shoes 201 can also move towards the brake drum and abut against the brake drum, and the purpose of braking is also achieved.
Of course, the present invention is not limited thereto, the telescopic assembly may also include two cylinder bodies 32, and each cylinder body 32 is adapted to the corresponding piston rod 31, that is, two independent telescopic assemblies, and when braking, the piston rods 31 in the two cylinder bodies 32 perform synchronous telescopic motion.
In an example of the present invention, the present invention further includes:
the second elastic member 50 located at the second end 22 of the brake shoes 201 has one end coupled to one of the brake shoes 201 and the other end coupled to the other brake shoe 201, so that the first ends 21 of the two brake shoes 201 have a tendency to move toward each other;
the second ends 22 of the two brake shoes 201 can be coupled by providing the second elastic member 50, so that the two brake shoes 201 are coupled together, and in particular, one brake shoe 201 can move together with the other brake shoe 201 during the movement of the other brake shoe; and the second elastic element 50 can make the first ends 21 of the two brake shoes 201 have the tendency of moving towards each other;
by using the second elastic member 50 to couple the two brake shoes 201, the two brake shoes 201 are suspended on the brake disk 10, so that when one of the piston rods 31 fails, the two brake shoes 201 can still move away from each other under the action of the other piston rod 31 for braking.
In an example of the present invention, the present invention further includes:
one end of the push rod 60 is movably coupled with one of the brake shoes 201, and the other end of the push rod is movably coupled with the other brake shoe 201;
specifically, the push rod 60 is arranged to support the two brake shoes 201; on the other hand, when one of the piston rods 31 fails, the push rod 60 is pushed to move by the action of one of the brake shoes 201, so that the other brake shoe 201 is pushed to move.
In an example of the present invention, the push rod 60 is connected to the brake shoe set 20 in a snap-fit manner, and one of the push rod 60 and the brake shoe 201 is provided with an insertion groove, and the other is provided with a snap-fit piece matched with the insertion groove;
the movable connection between the push rod 60 and the brake shoe 201 can be realized through the clamping connection between the push rod 60 and the brake shoe 201.
In an example of the present invention, a clamping groove 24 is further configured on the brake shoe 201, and the push rod 60 is adapted in the clamping groove 24;
in another example of the present invention, a clamping groove 24 is further configured on the push rod 60, and the brake shoe 201 is adapted in the clamping groove 24;
of course, the present invention is not limited thereto, and in an example of the present invention, one end of the push rod 60 is hinged to one of the brake shoes 201, and the other end is hinged to the other brake shoe 201; this also enables the supporting function of the push rod 60.
In an example of the present invention, the second elastic member 50 includes:
a torsion spring having a first pin and a second pin,
wherein, the first pin is coupled with one of the brake shoes 201, and the second pin is coupled with the other brake shoe 201;
under the action of the torsion force of the torsion spring, the first ends 21 of the two brake shoes 201 have the tendency of moving towards each other;
specifically, mounting holes 23 are configured on the brake shoes 201, a first pin is coupled with the mounting hole 23 on one of the brake shoes 201, and a second pin is coupled with the mounting hole 23 on the other of the brake shoes 201; the two brake shoes 201 can be movably coupled at the second end 22 by providing a torsion spring, so that the first ends 21 of the two brake shoes 201 have a tendency to move toward each other.
In an example of the present invention, the present invention further includes:
a guide rod 70 is arranged between the two brake shoes 201 and close to the first end 21, and two ends of the guide rod are respectively provided with a clamping groove extending along the axial direction, and the clamping grooves are respectively connected with the corresponding brake shoes 201 in a clamping manner;
the depth of the clamping groove is greater than the opening and closing stroke of the brake shoe 201;
specifically, the guide rod 70 may support the first ends 21 of the two brake shoes 201, and the depth of the clamping groove is greater than the opening and closing stroke of the brake shoes 201, so that when the brake shoes 201 are in the maximum opening and closing stroke, the guide rod 70 may not be separated from the two brake shoes 201 to slip.
In an example of the present invention, the present invention further includes:
a third elastic member 80 coupled to the guide rod 70, and having one end abutting against one of the brake shoes 201 and the other end abutting against the other brake shoe 201;
when the third elastic member 80 is pressed by the two brake shoes 201, the third elastic member 80 has a tendency to drive the two brake shoes 201 to move away from each other;
two brake shoes 201 are under the effect of first elastic component 40, to the direction motion that is close to each other, under the effect of third elastic component 80, can make to form flexible buffering between two brake shell fragments, avoid two brake shoes 201 hard contact, play the effect of protection to brake shoes 201. For example, the third elastic member 80 is a compression spring, and the third elastic member 80 is fitted over the guide rod 70 when mounted.
In an example of the present invention, a protrusion 25 extending toward a symmetry axis of the brake disc 10 is formed on the brake shoe 201, so that a connection groove 26 is formed on the brake shoe 201, and the guide rod 70 is disposed in the connection groove 26;
this further supports the guide rod 70, so that the support of the guide rod 70 is better and more reliable.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The exemplary embodiment of the braking device 100 proposed by the present invention has been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes can be made to the above specific embodiments without departing from the concept of the present invention, and various combinations of the various technical features and structures proposed by the present invention can be made without departing from the scope of the present invention, which is defined by the appended claims.
Claims (10)
1. A brake device comprises a brake disc (10), a brake shoe set (20), a brake drum and a telescopic assembly (30),
the brake disc (10) is fixedly connected to the rear axle housing;
the brake shoe set (20) is coupled to the brake disc (10) and comprises a pair of oppositely arranged brake shoes (201), and first ends (21) of the two brake shoes (201) are connected through a first elastic member (40) so that the two brake shoes (201) have tendency to approach each other;
the brake drum is fixedly connected with a rear axle shaft and can be pivotally connected to the rear axle housing through a bearing, and the brake drum is suitable for being sleeved on the outer side of the brake shoe set (20);
the telescopic assembly (30) is positioned between the first ends (21) of the two brake shoes (201) and comprises a cylinder body (32) and a piston rod (31) which is telescopic in the cylinder body (32);
it is characterized in that the preparation method is characterized in that,
a supporting shaft (11) is arranged on the brake disc (10), the first elastic part (40) comprises two parts, one end of each part is connected with the brake shoe (201), and the other end of each part is connected with the supporting shaft (11);
the second ends (22) of the two brake shoes (201) are relatively pivotally coupled,
the cylinder body (32) is connected with the brake disc (10), the number of the piston rods (31) is two, the two piston rods are respectively arranged opposite to the corresponding brake shoes (201), each piston rod (31) can independently do telescopic motion,
when braking is needed, at least one piston rod (31) moves towards the corresponding brake shoe (201) so that the first ends (21) of the two brake shoes (201) move away from each other and abut against the brake drum.
2. The brake apparatus according to claim 1,
a first accommodating cavity (321) and a second accommodating cavity (322) which are independent of each other are defined in the cylinder body (32);
the piston rod (31) is respectively arranged in the first accommodating cavity (321) and the second accommodating cavity (322).
3. The brake apparatus according to claim 1,
further comprising:
and the second elastic piece (50) is positioned at the second end (22) of the brake shoe (201), one end of the second elastic piece is connected with one brake shoe (201), and the other end of the second elastic piece is connected with the other brake shoe (201), so that the first ends (21) of the two brake shoes (201) have the tendency of moving towards each other.
4. A braking apparatus in accordance with claim 3,
further comprising:
and one end of the push rod (60) is movably connected with one of the brake shoes (201), and the other end of the push rod is movably connected with the other brake shoe (201).
5. The brake apparatus according to claim 4,
the push rod (60) is connected with the brake shoe set (20) in a clamping mode, one of the push rod (60) and the brake shoe (201) is provided with an insertion groove, and the other of the push rod (60) and the brake shoe (201) is provided with a clamping sheet matched with the insertion groove.
6. The brake apparatus according to claim 4,
a clamping groove (24) is further configured on the brake shoe (201), and the push rod (60) is matched in the clamping groove (24).
7. A braking apparatus in accordance with claim 3,
the second elastic member (50) includes:
a torsion spring having a first pin and a second pin,
wherein the first pin is connected with one brake shoe (201), and the second pin is connected with the other brake shoe (201);
under the action of the torsion force of the torsion spring, the first ends (21) of the two brake shoes (201) have the tendency of moving towards the direction close to each other.
8. The brake apparatus according to claim 1,
further comprising:
a guide rod (70) is arranged between the two brake shoes (201) and close to the first end (21), clamping grooves extending along the axial direction are respectively formed in the two ends of the guide rod, and the clamping grooves are respectively connected with the corresponding brake shoes (201) in a clamping mode;
the depth of the clamping groove is larger than the opening and closing stroke of the brake shoe (201).
9. The brake apparatus according to claim 8,
further comprising:
a third elastic member (80) coupled to the guide rod (70) and having one end abutting against one of the brake shoes (201) and the other end abutting against the other brake shoe (201);
when the third elastic member (80) is subjected to the pressing force of the two brake shoes (201), the third elastic member (80) has a tendency to drive the two brake shoes (201) to move away from each other.
10. The brake apparatus according to claim 8,
the brake shoe (201) is provided with a bulge (25) extending towards the symmetry axis of the brake disc (10) so that the brake shoe (201) is provided with a connecting groove (26), and the guide rod (70) is arranged in the connecting groove (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023345613.9U CN214296311U (en) | 2020-12-31 | 2020-12-31 | Brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023345613.9U CN214296311U (en) | 2020-12-31 | 2020-12-31 | Brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214296311U true CN214296311U (en) | 2021-09-28 |
Family
ID=77822151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023345613.9U Active CN214296311U (en) | 2020-12-31 | 2020-12-31 | Brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214296311U (en) |
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2020
- 2020-12-31 CN CN202023345613.9U patent/CN214296311U/en active Active
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