CN217578151U - Manual brake release device - Google Patents
Manual brake release device Download PDFInfo
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- CN217578151U CN217578151U CN202220988866.8U CN202220988866U CN217578151U CN 217578151 U CN217578151 U CN 217578151U CN 202220988866 U CN202220988866 U CN 202220988866U CN 217578151 U CN217578151 U CN 217578151U
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- brake release
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Abstract
The utility model discloses a manual brake release device belongs to stopper technical field. It has solved the unstable problem of the subassembly that declutches of stopper among the prior art. The brake device comprises a support, manual brake releasing assemblies and electromagnetic brake releasing assemblies, wherein brake arms are hinged to two sides of the support, the manual brake releasing assemblies are mounted at the upper ends of the brake arms and used for driving the adjacent brake arms to rotate relative to the support, the electromagnetic brake releasing assemblies are arranged between the two manual brake releasing assemblies, and the electromagnetic brake releasing assemblies are used for pushing the two brake arms to be far away from the support to rotate; each brake arm is provided with a brake component in a penetrating way, and each brake component pushes the corresponding brake arm to rotate towards the direction of the other brake arm. This scheme has simple structure, has the better advantage of the floodgate effect of loosing simultaneously concurrently.
Description
Technical Field
The utility model belongs to the technical field of the stopper, concretely relates to manual brake release device.
Background
The brake is one of the important safety parts of an elevator, which enables the motor of the elevator to stop rotating without power supply and the car to be effectively braked, and whether the elevator can run safely is closely related to the working condition of the brake.
In the prior art, a drum brake is generally used, that is, according to the running state of an elevator, the operation of the drum brake is controlled by an electromagnetic brake release assembly arranged in the drum brake, and in case of failure of the electromagnetic brake release assembly, a manual brake release structure arranged in the drum brake is generally used to manually release the brake, specifically, in an emergency or when needing maintenance, because the brake release rod structure on the manual brake release structure is located in an electromagnetic brake release hole, a handle is pulled to make the brake release rod structure push iron cores on two sides, so as to achieve brake release, but the scheme has the following disadvantages:
1. because the manual brake release rod structure is usually arranged on a static part which does not move along with a plunger in the electromagnet brake release assembly, when brake shoes in the drum brake are worn more, the brake release stroke of the manual brake release rod structure cannot be adjusted according to requirements, and therefore the situations that the brake cannot be normally released and the brake is not in place can occur.
2. Because the manual brake release rod structure is usually a single manual brake release rod structure, part of the structure of the single manual brake release rod structure is damaged or is blocked in a brake release hole of the electromagnet, so that the brake release states of the two brake arms cannot be simultaneously opened, a motor of the elevator cannot normally rotate, and certain potential safety hazards exist.
3. Since the handle and the brake release rod in the manual brake release rod structure are usually fixedly connected and always located in the brake release hole of the electromagnet, mechanical vibration can be generated during the operation of the equipment, and the risk of brake failure caused by abnormal displacement of the manual brake release rod structure exists.
Disclosure of Invention
The utility model aims at solving the problems in the prior art, and provides a manual brake release device which can adjust the brake release stroke and has stable brake release structure.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides a manual brake release device, includes the support, the support both sides all articulate there is the brake arm, still includes:
the manual brake releasing assembly is arranged at the upper end of each brake arm and is used for driving the adjacent brake arms to rotate relative to the support;
the electromagnetic brake release assembly is arranged between the two manual brake release assemblies and used for pushing the two brake arms to rotate away from the support; and each brake arm is provided with a brake component in a penetrating way, and each brake component pushes the corresponding brake arm to rotate towards the other brake arm.
In foretell manual brake release device, the brake subassembly includes elastic component and connecting piece, the connecting piece is located electromagnetism release subassembly lower extreme, the bracing piece is all installed to the connecting piece both sides, the one end of bracing piece slides and runs through adjacent brake arm, the one end that the bracing piece passed brake arm is equipped with the mounting, the elastic component cover is located on the bracing piece, just the elastic component is located mounting and adjacent between the brake arm.
In the above-described manual brake release device, brake shoes are connected to the inner sides of both the brake arms.
In the above manual brake release device, the electromagnetic brake release assembly includes a second magnetic block, a first magnetic block is surrounded at the edge of the second magnetic block, a coil electrically connected to the first magnetic block is arranged between the first magnetic block and the second magnetic block, two sliding blocks are slidably connected below the second magnetic block, the two sliding blocks can move towards the adjacent manual brake release assembly under the action of magnetic force, and the two sliding blocks are both connected with a pushing rod for pushing the adjacent manual brake release assembly.
In foretell manual device that declutches, every manual declutch unit all includes declutch brake branch, declutch brake branch is with adjacent the brake arm is connected, declutch brake branch upper end is rotated and is connected with the declutch brake pole, the declutch brake pole can be dismantled and be connected with the declutch brake handle, declutch brake pole lower extreme is connected with and is used for extrudeing the stripper plate that declutch brake branch removed.
In foretell manual device that declutches, the declutch gate pole is including the joint portion and the rotation portion that are connected, the stripper plate is connected with the lower extreme of rotation portion, joint portion is located the upper end of declutch gate branch, the cross sectional area of joint portion is greater than the cross sectional area of rotation portion, rotation portion pivoted set up in the declutch gate branch.
In the above manual brake release device, a first through hole for the brake release handle is formed at the upper end of the brake release rod.
In the above manual brake release device, an adjusting assembly is connected between the brake release strut and the adjacent brake arm, and the adjusting assembly is used for adjusting the distance between the brake release strut and the upper end of the adjacent brake arm.
In foretell manual device that declutches, adjusting part includes bolt and two nuts, the bolt runs through adjacently in proper order the brake arm and adjacent declutch branch, two the nut distributes the both sides of declutch branch, two nuts are used for pressing from both sides tight fixed declutch branch.
In the above-mentioned manual brake release device, one end of the push rod is disposed opposite to the adjacent bolt.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses in, through the scheme that sets up manual brake release subassembly, under the condition that electromagnetism brake release subassembly became invalid, can be through the manual brake release subassembly of operation for brake shoe on the brake arm breaks away from the contact with the motor shaft, thereby opens the brake release state.
2. Through being connected adjusting part between release branch and adjacent brake arm, when brake shoe on the brake arm wearing and tearing are more, through the position of the nut in the adjustment adjusting part on the bolt, the distance between the upper end of adjustable release branch and adjacent brake arm to the stroke of manual release subassembly has been adjusted, when avoiding brake shoe wearing and tearing more, manual release subassembly became invalid and move out of position, the condition that can't normally break away from the contact with brake shoe on the brake arm and motor shaft takes place.
3. Can dismantle with the release branch through the release pole with in the manual release subassembly and be connected, the scheme of being connected can be dismantled with the release pole to the release handle, use manual release subassembly brake shoe on with the brake arm and motor shaft break away from the contact after, can take away from release pole and release handle on the release branch, avoid the normal displacement of release pole and release handle's always installing on the release branch and arousing the abnormal displacement of release branch to lead to the manual risk that the device is out of order of loosing the floodgate.
4. Through setting up two manual brake release subassemblies respectively in the upper end of adjacent brake arm, adopt this scheme, can use the corresponding brake release state of opening adjacent brake arm that two manual brake release subassemblies are respectively, can avoid using the structure of a manual brake release subassembly among the prior art, when going to open the brake release state of two brake arms, there is the partial structure damage or the card of manual brake release subassembly to die, can not open the problem of the brake release state of two brake arms simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of the manual brake release device of the present invention.
Fig. 2 is a schematic structural diagram of the manual brake release assembly of the present invention.
Fig. 3 is a schematic structural view of the middle brake release lever of the present invention.
Fig. 4 is an enlarged schematic view of the structure at a in fig. 1.
In the figure, 100, brake arm; 110. brake shoes; 200. a manual brake release assembly; 210. releasing the brake strut; 211. a first through hole; 220. a brake releasing rod; 221. a pressing plate; 222. a clamping part; 223. a rotating part; 230. a brake releasing handle; 300. an electromagnetic brake release assembly; 310. a first magnetic block; 320. a second magnetic block; 330. a coil; 340. a slider; 350. a push rod; 400. a brake assembly; 410. an elastic member; 420. a connecting member; 430. a support bar; 440. a fixing member; 500. an adjustment assembly; 510. a bolt; 520. a nut; 600. a motor shaft; 700. and (4) a support.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1-4, the present invention relates to a manual brake release device, which comprises a brake arm 100, a manual brake release assembly 200, an electromagnetic brake release assembly 300, a brake assembly 400, an adjustment assembly 500, and a support 700.
The two sides of the support 700 are respectively hinged with a brake arm 100, the inner sides of the two brake arms 100 are respectively connected with a brake shoe 110, a manual brake release assembly 200 is arranged at the upper end of each brake arm 100, and the manual brake release assembly 200 is used for driving the adjacent brake arms 100 to rotate relative to the support 700; the electromagnetic brake release assembly 300 is arranged between the two manual brake release assemblies 200, and the electromagnetic brake release assembly 300 is used for pushing the two brake arms 100 to rotate away from the support 700; each brake arm 100 is provided with a brake assembly 400 in a penetrating manner, each brake assembly 400 pushes the corresponding brake arm 100 to rotate towards the other brake arm 100, each manual brake release assembly 200 comprises a brake release support rod 210, each brake release support rod 210 is connected with the adjacent brake arm 100, the upper end of each brake release support rod 210 is rotatably connected with a brake release rod 220, each brake release rod 220 is detachably connected with a brake release handle 230, and the lower end of each brake release rod 220 is connected with a squeezing plate 221 for squeezing the brake release support rod 210 to move. Through the scheme that sets up manual brake release subassembly 200, under the condition that electromagnetism brake release subassembly 300 became invalid, it drives the rotation of brake release lever 220 to rotate brake release handle 230, brake release lever 220 drives joint portion 222 and stripper plate 221 and rotates, stripper plate 221 extrudes electromagnetism brake release subassembly 300, under the effect of extrusion force, stripper plate 221 drives whole manual brake release subassembly 200 and keeps away from electromagnetism brake release subassembly 300 and moves, manual brake release subassembly 200 drives brake shoe 110 on the adjacent brake arm 100 and motor shaft 600 break away from the contact, thereby open the brake release state.
The brake assembly 400 includes an elastic member 410 and a connecting member 420, the connecting member 420 is fixedly disposed at the lower end of the electromagnetic brake releasing assembly 300, support rods 430 are mounted at both sides of the connecting member 420, one end of each support rod 430 slidably penetrates through the adjacent brake arm 100, a fixing member 440 is disposed at one end of each support rod 430 penetrating through the adjacent brake arm 100, the elastic member 410 is sleeved on the support rod 430, the elastic member 410 is disposed between the fixing member 440 and the adjacent brake arm 100, and the elastic member 410 is preferably a spring. Under the elastic force of the spring, the adjacent brake arm 100 is pushed toward the direction of the connecting member 420, so that the brake shoe 110 on the brake arm 100 is in a state of abutting against the motor shaft 600.
The electromagnetic trip release assembly 300 comprises a second magnetic block 320, a first magnetic block 310 is arranged around the edge of the second magnetic block 320, a coil 330 electrically connected between the first magnetic block 310 and the second magnetic block 320 is arranged, two sliding blocks 340 are connected below the second magnetic block 320 in a sliding manner, the two sliding blocks 340 can move towards the adjacent manual trip release assembly 200 under the action of magnetic force, the two sliding blocks 340 are both connected with a push rod 350 used for pushing the adjacent manual trip release assembly 200, and one end of each push rod 350 is arranged opposite to the adjacent bolt 510. In the state that the electromagnetic brake release assembly 300 is not in failure, the motor shaft 600 is electrified and operated, meanwhile, the coil 330 is electrically connected, magnetic force is generated between the first magnetic block 310 and the second magnetic block 320, the two sliding blocks 340 move towards the adjacent brake release support rods 210 under the action of the magnetic force, and the sliding blocks 340 drive the pushing rods 350 to move towards the adjacent brake release support rods 210, so that the adjacent brake arms 100 are pushed to rotate, the brake shoes 110 on the brake arms 100 are separated from the contact with the motor shaft 600, and the brake release state is opened.
Further, the brake release lever 220 includes the joint portion 222 and the rotation portion 223 that are connected, and the stripper plate 221 is connected with the lower extreme of rotation portion 223, and joint portion 222 is located the upper end of brake release branch 210, and the cross sectional area of joint portion 222 is greater than the cross sectional area of rotation portion 223, and rotation portion 223 pivoted sets up in brake release branch 210, and the first through-hole 211 that is used for brake release handle 230 is seted up to brake release lever 220 upper end. By detachably connecting the brake release lever 220 and the brake release handle 230 of the manual brake release assembly 200 to the brake release strut 210 and detachably connecting the brake release handle 230 and the brake release lever 220, after the brake shoe 110 on the brake arm 100 is separated from the motor shaft 600 by using the manual brake release assembly 200, the brake release lever 220 and the brake release handle 230 can be removed from the brake release strut 210, so that the risk that the brake release lever 220 and the brake release handle 230 are always installed on the brake release strut 210 to cause abnormal displacement of the brake release strut 210, and thus the failure of the manual brake release device is avoided.
An adjusting assembly 500 is connected between the brake release strut 210 and the adjacent brake arm 100, the adjusting assembly 500 is used for adjusting the distance between the brake release strut 210 and the upper end of the adjacent brake arm 100, the adjusting assembly 500 comprises a bolt 510 and two nuts 520, the bolt 510 sequentially penetrates through the adjacent brake arm 100 and the adjacent brake release strut 210, the two nuts 520 are distributed on two sides of the brake release strut 210, and the two nuts 520 are used for clamping and fixing the brake release strut 210. When the brake shoe 110 on the brake arm 100 is worn more, the distance between the brake release support rod 210 and the upper end of the adjacent brake arm 100 can be adjusted by adjusting the position of the nut 520 on the bolt 510, so that the stroke of the manual brake release assembly 200 is adjusted, and the situation that the brake shoe 110 on the brake arm 100 cannot be normally separated from the motor shaft 600 due to the failure and the incapability of moving the manual brake release assembly 200 to a position when the brake shoe 110 is worn more is avoided
The utility model relates to a manual brake release device's theory of operation as follows:
in the state that the electromagnetic brake release assembly 300 is not failed, the motor shaft 600 is electrified to operate, the coils 330 are electrically connected, magnetic force is generated between the first magnetic block 310 and the second magnetic block 320, the two sliding blocks 340 move towards the adjacent brake release supporting rods 210 under the action of the magnetic force, the sliding blocks 340 drive the pushing rods 350 to move towards the adjacent brake release supporting rods 210, so that the adjacent brake arms 100 are pushed to rotate, the brake shoes 110 on the brake arms 100 are separated from the contact with the motor shaft 600, the brake release state is opened, and the motor shaft 600 can normally operate.
When the motor shaft 600 is powered off, the coil 330 is electrically disconnected, no magnetic force is generated between the first magnetic block 310 and the second magnetic block 320, under the action of the elastic force of the spring, the adjacent brake arm 100 is pushed towards the direction of the connecting piece 420, so that the brake shoe 110 on the brake arm 100 is in a state of abutting against the motor shaft 600, the motor shaft 600 stops rotating, meanwhile, the brake arm 100 drives the brake release strut 210 to push the adjacent push rod 350 to move, and under the drive of the push rod 350, the sliding block 340 moves and resets.
When the electromagnetic brake release assembly 300 is in a failure state, to open the brake release state, the brake release rod 220 needs to be installed on the brake release support rod 210, the brake release handle 230 is inserted into the brake release rod 220, the brake release handle 230 is rotated to drive the brake release rod 220 to rotate, the brake release rod 220 drives the clamping portion 222 and the pressing plate 221 to rotate, the pressing plate 221 presses the electromagnetic brake release assembly 300, under the action of the pressing force, the pressing plate 221 drives the whole manual brake release assembly 200 to move away from the electromagnetic brake release assembly 300, and the manual brake release assembly 200 drives the brake shoe 110 on the adjacent brake arm 100 to be separated from the contact with the motor shaft 600, so that the brake release state is opened. It should be noted that, after the trip bar 220 is installed on the trip bar 210, since the pressing plate 221 is flat, there are two relative positional relationships between the pressing plate 221 and the electromagnetic trip unit 300, one is that the pressing plate 221 contacts and presses the electromagnetic trip unit 300, and the other is that there is a gap between the pressing plate 221 and the electromagnetic trip unit 300 and does not contact, and only after the pressing plate 221 rotates by an external force, the pressing plate 221 contacts and presses the electromagnetic trip unit 300. After the brake shoe 110 on the brake arm 100 is disengaged from the motor shaft 600 by using the manual brake release assembly 200, the brake release lever 220 and the brake release handle 230 are removed from the brake release strut 210, so that the risk that the brake release lever 220 and the brake release handle 230 are always mounted on the brake release strut 210 to cause abnormal displacement of the brake release strut 210, thereby causing malfunction of the manual brake release device, is avoided.
It should be noted that all the directional indicators (such as up, down, left, right, front, back, 8230; \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
Furthermore, the descriptions of the embodiments as "first," "second," "a," etc. in this disclosure are for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of the indicated features is indicative. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Claims (10)
1. The utility model provides a manual brake release device, includes the support, the support both sides all articulate there is the brake arm, its characterized in that still includes:
the manual brake release assembly is arranged at the upper end of each brake arm and is used for driving the adjacent brake arms to rotate relative to the support;
the electromagnetic brake release assembly is arranged between the two manual brake release assemblies and used for pushing the two brake arms to rotate away from the support; and each brake arm is provided with a brake component in a penetrating manner, and each brake component pushes the corresponding brake arm to rotate towards the other brake arm.
2. The manual brake release device according to claim 1, wherein the brake assembly includes an elastic member and a connecting member, the connecting member is disposed at a lower end of the electromagnetic brake release assembly, support rods are mounted on two sides of the connecting member, one end of each support rod slidably penetrates through the adjacent brake arm, a fixing member is disposed at an end of each support rod penetrating through the adjacent brake arm, the elastic member is sleeved on the support rod, and the elastic member is disposed between the fixing member and the adjacent brake arm.
3. A manual brake release device as claimed in claim 1, wherein the brake shoes are connected to the inner sides of the two brake arms.
4. The manual brake release device according to claim 1, wherein the electromagnetic brake release assembly comprises a second magnetic block, the first magnetic block is surrounded at the edge of the second magnetic block, a coil electrically connected between the first magnetic block and the second magnetic block is arranged, two sliding blocks are connected below the second magnetic block in a sliding manner, the two sliding blocks can move towards the adjacent manual brake release assembly under the action of magnetic force, and both the two sliding blocks are connected with pushing rods used for pushing the adjacent manual brake release assembly.
5. The manual brake release device according to claim 4, wherein each manual brake release assembly comprises a brake release strut, the brake release strut is connected with the adjacent brake arm, a brake release rod is rotatably connected to the upper end of the brake release strut, a brake release handle is detachably connected to the brake release rod, and a pressing plate for pressing the brake release strut to move is connected to the lower end of the brake release rod.
6. The manual brake release device according to claim 5, wherein the brake release rod comprises a connecting joint portion and a rotating portion, the pressing plate is connected with a lower end of the rotating portion, the joint portion is located at an upper end of the brake release rod, a cross-sectional area of the joint portion is larger than a cross-sectional area of the rotating portion, and the rotating portion is rotatably disposed in the brake release rod.
7. The manual brake release device according to claim 5, wherein a first through hole for the brake release handle is formed at the upper end of the brake release rod.
8. The manual brake release device according to claim 5, wherein an adjusting component is connected between the brake release strut and the adjacent brake arm, and the adjusting component is used for adjusting the distance between the brake release strut and the upper end of the adjacent brake arm.
9. The manual brake release device according to claim 8, wherein the adjusting assembly comprises a bolt and two nuts, the bolt sequentially penetrates through the adjacent brake arm and the adjacent brake release strut, the two nuts are distributed on two sides of the brake release strut, and the two nuts are used for clamping and fixing the brake release strut.
10. The manual brake release device of claim 9, wherein one end of said push rod is disposed opposite to the adjacent bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220988866.8U CN217578151U (en) | 2022-04-27 | 2022-04-27 | Manual brake release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220988866.8U CN217578151U (en) | 2022-04-27 | 2022-04-27 | Manual brake release device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217578151U true CN217578151U (en) | 2022-10-14 |
Family
ID=83543086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220988866.8U Active CN217578151U (en) | 2022-04-27 | 2022-04-27 | Manual brake release device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217578151U (en) |
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2022
- 2022-04-27 CN CN202220988866.8U patent/CN217578151U/en active Active
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