Automotive electromagnetic brake with cam capable of being manually released and using method and application of automotive electromagnetic brake

Abstract

The embodiment of the invention discloses a vehicle electromagnetic brake with a manually released cam and a using method and application, and relates to the field of electromagnetic brake structures, and the vehicle electromagnetic brake with the manually released cam comprises a friction disc, a brake disc, an armature, a magnet yoke, a release plate and a release rod; the middle of the magnet yoke is sleeved with a gear sleeve, the armature and the brake disc are sequentially arranged on the outer side of the gear sleeve in a sleeved mode, and the brake disc and the gear sleeve are in radial transmission and axial sliding connection. The release plate is mounted at the bottom of the magnet yoke through a bolt, and one end of the release plate is rotationally connected with the release rod, so that the release rod rotates on the release plate; an abutting part is arranged at the end, facing the magnet yoke, of the release rod, a cam curve is formed on the abutting part, and the abutting part abuts against the magnet yoke through the cam curve; therefore, the electromagnetic brake can be manually braked through mutual cooperation of the release rod and the release plate.

Description

Technical Field

[0001] The present application relates to the field of electromagnetic brake structures, and in particular to a vehicle electromagnetic brake with manual cam release, a use method and an application thereof. Background Art

[0002] With the rapid development of modern industrial technology, motors and their supporting equipment are increasingly used in industrial automation, rail transportation, power transmission and other fields. As an important part of the motor system, the performance of the electromagnetic brake directly affects the safety, stability and reliability of the entire motor system. As a key component of the electromagnetic brake, the design, material and performance of the armature have an important impact on the overall performance of the electromagnetic brake. Therefore, the research and innovation of the electromagnetic brake armature has important practical significance and application value.

[0003] The electromagnetic brake for electric vehicles is usually installed at the rear end of the electric vehicle drive motor to park the vehicle. When the vehicle starts, the electromagnetic brake is energized at the same time, and the electromagnetic brake is in a disengaged and released state, driving the motor to rotate and drive the vehicle to work; when the vehicle stops, in order to prevent the vehicle from sliding, the electromagnetic brake is powered off, the electromagnetic brake is in a braking state, and the vehicle cannot move.

[0004] The manual operation of the existing electromagnetic brake is cumbersome and complicated, and there is also a certain instability during use, which makes it difficult to achieve effective braking by manual operation of the electromagnetic brake.

[0005] Therefore, how to realize the manual release function of the armature is an important technical problem that needs to be solved urgently. Summary of the invention

[0006] In order to solve the problems existing in the prior art, the present invention provides a cam manually released vehicle electromagnetic brake and a use method and application, wherein a cam manually released vehicle electromagnetic brake comprises a friction disc, a brake disc, an armature, a yoke, a release plate and a release rod;

[0007] The middle part of the yoke is sleeved with a gear sleeve, and the armature and the brake disc are sleeved on the outside of the gear sleeve in sequence, wherein the brake disc and the gear sleeve are radially transmitted and axially slidably connected;

[0008] The release plate is installed at the bottom of the magnetic yoke by bolts, and one end of the release plate is rotatably connected to the release rod, so that the release rod rotates on the release plate;

[0009] The release lever is provided with an abutment portion at one end thereof facing the magnetic yoke, a cam curve is formed on the abutment portion, and the abutment portion abuts against the magnetic yoke through the cam curve;

[0010] When the release lever is rotated to one position on the release plate, the abutment portion pushes the armature to move toward the yoke, the brake disc is released, and braking stops; when the release lever is rotated to another position on the release plate, the abutment portion is disengaged from pushing the yoke, and the armature

[0011] Optionally, in some embodiments of the present application, bolt holes are provided on the yoke and the armature at positions corresponding to the bolts, and the bolts are located in the bolt holes, so that the yoke and the armature move along the bolts;

[0012] A limiting member is provided at one end of the bolt, and the limiting member limits the armature.

[0013] Optionally, in some embodiments of the present application, a release gap is formed between the yoke and the armature, and the abutment portion pushes the yoke to move in a direction toward the armature through the release gap.

[0014] Optionally, in some embodiments of the present application, friction plates are provided on both sides of the brake disc, and the armature abuts against the brake disc through the friction plates.

[0015] Optionally, in some embodiments of the present application, a groove is provided on the yoke, a spring is provided in the groove, one end of the spring abuts against the yoke, and the other end of the spring abuts against the armature.

[0016] Optionally, in some embodiments of the present application, a through hole is provided on the release plate, the through hole is located in the middle of the release plate, and the release rod is rotatably connected to the release plate through the through hole.

[0017] Optionally, in some embodiments of the present application, a method of use is provided, the method of use comprising the following steps:

[0018] Step 1: rotating the release lever, when the release lever is rotated toward the outside of the yoke, the abutting portion on the release lever abuts against the yoke, and the bolt drives the armature to move toward the yoke, releasing the brake disc and disengaging from the braking process;

[0019] Step 2: Rotate the release lever to move it toward the center of the yoke, so that the abutment on the release lever disengages from the abutment against the yoke, and the armature moves toward the brake disc to fix the brake disc, thereby completing the braking process.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The present invention realizes the manual release function of the electromagnetic brake through the cam manual release mechanism, thereby improving the flexibility and reliability of the brake;

[0022] 2. The present invention adopts a spring support structure to form a release gap, so that the armature and the yoke can move relative to each other, which is convenient for realizing the braking and releasing process;

[0023] 3. The brake disc and friction disc of the present invention are reasonably arranged, the braking effect is stable and reliable, and it is easy to maintain and replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic diagram of the overall structure of a vehicle electromagnetic brake with manual cam release provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the exploded structure of a vehicle electromagnetic brake with manual cam release provided in an embodiment of the present application;

[0027] Figure 3 A schematic diagram of the structure of the release plate and the release rod assembly provided in the embodiment of the present application;

[0028] Figure 4 A schematic cross-sectional view of a vehicle electromagnetic brake with a cam manual release provided in an embodiment of the present application;

[0029] Figure 5 for Figure 4 Enlarged structural diagram at A in the middle.

[0030] Description of reference numerals:

[0031] 1. Yoke; 2. Release plate; 3. Release rod; 4. Abutment portion; 5. Cam curve; 6. Armature; 7. Brake disc; 8. Bolt; 9. Limiting member; 10. Release gap; 11. Friction plate; 12. Bolt hole; 13. Groove; 14. Through hole; 15. Friction disc; 16. Spring; 17. Compression spring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present application. It is understood that the drawings are only provided for reference and illustration, and are not used to limit the present application. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0033] Specifically, Figure 1 As shown, in the embodiment of the present application, a vehicle electromagnetic brake with a cam manual release is provided, and the electromagnetic brake moves the armature 6 by manual operation, so that the armature 6 is close to the yoke 1 or the brake disc 7 on the electromagnetic brake, so that the electromagnetic brake is braked, and the specific process is as follows:

[0034] The electromagnetic brake of the present application includes main parts such as a friction disc 15, a brake disc 7, an armature 6, a yoke 1, and a release plate 2 and a release rod 3. A gear sleeve is sleeved in the middle of the yoke 1, and the armature 6 and the brake disc 7 are sleeved on the outside of the gear sleeve in sequence, wherein the brake disc 7 is radially transmitted and axially slidably connected with the gear sleeve, wherein the release plate 2 is installed at the bottom of the yoke 1, and a bolt 8 is provided on the release plate 2 in the direction toward the yoke 1, and the bolt 8 can be fixedly connected to the release plate 2 or can be connected through a nut. In the present application, the bolt 8 is connected to the release plate 2 through a nut, so that the bolt 8 is installed on the release plate 2, and a yoke 1 is provided on the release plate 2, and a bolt hole 12 is opened on the yoke 1 at a position corresponding to the bolt 8. In the embodiment of the present application, two bolts 8 are provided, and correspondingly, two bolt holes 12 are also provided, and the diameter of the bolt hole 12 is greater than the diameter of the bolt 8, so that the yoke 1 can be sleeved outside the bolt 8 through the bolt hole 12, wherein a straight line formed by the positions of the two bolts 8 passes through the center of the yoke 1.

[0035] An armature 6 is also provided on the yoke 1. The armature 6 is placed on one side of the yoke 1 relative to the release plate 2. A bolt hole 12 is opened on the armature 6 at a position corresponding to the bolt 8. The bolt 8 is located in the bolt hole 12, so that the armature 6 can move on the bolt 8 along the direction in which the bolt 8 is set, wherein the radius of the bolt hole 12 on the armature 6 is larger than the radius of the corresponding bolt hole 12 on the yoke 1, and a compression spring 17 is provided in the bolt hole 12 on the armature 6, one end of the compression spring 17 abuts against the yoke 1, and the other end abuts against the limiter 9 through a spring 16 washer, so that the armature 6 is limited on the yoke 1 through the bolt 8, and the yoke 1 and the armature 6 both move along the direction in which the bolt 8 is set.

[0036] In the embodiment of the present application, the limiting member 9 on the bolt 8 is configured as a bolt cap.

[0037] A narrow release gap 10 is formed between the armature 6 and the yoke 1. The release gap 10 is formed by supporting the spring 16 on the yoke 1. Specifically,

[0038] A plurality of grooves 13 are provided on the yoke 1 in the direction toward the armature 6. The plurality of grooves 13 are arranged in an annular manner on the yoke 1. In the embodiment of the present application, 10 grooves 13 are provided, and the 10 grooves 13 are evenly arranged on the yoke 1. Springs 16 are placed in the grooves 13. The springs 16 abut against the armature 6 on one side of the yoke 1 in the grooves 13, so that a small release gap 10 is formed between the armature 6 and the yoke 1. Figure 5 shown.

[0039] The release gap 10 is set to allow the armature 6 and the yoke 1 to move relative to each other. The movement process is achieved through the cooperation of the release plate 2 and the release rod 3. When the release rod 3 is rotated to a position by the operator, the cam curve 5 on the abutment part 4 on the release rod 3 abuts against the yoke 1, and the nut on the matching bolt 8 drives the armature 6 to move toward the yoke 1. The moving distance is the distance of the release gap 10 between the yoke 1 and the armature 6.

[0040] Since the brake disc 7 is arranged on one side of the armature 6 relative to the yoke 1, when the armature 6 moves toward the yoke 1, the armature 6 loses control of the brake disc 7, so that the brake disc 7 is released to facilitate the rotation of the motor spindle on the electromagnetic brake and cancel the braking process.

[0041] In the above structure, an abutment portion 4 is provided on the release rod 3 at an end position corresponding to the yoke 1, and a cam curve 5 is provided on the abutment portion 4. The cam curve 5 is an arc-shaped structure, and the raised portion abuts against an angular position of the yoke 1, so that when the release rod 3 rotates, the cam curve 5 on the abutment portion 4 can provide good abutment support for the yoke 1, thereby facilitating the movement of the armature 6.

[0042] At the same time, in the above structure, a friction disc 15 is further provided outside the brake disc 7, and friction plates 11 are provided on both sides of the brake disc 7. The brake disc 7 and the friction disc 15 can abut against the friction disc 15 under the push of the armature 6, so that the brake disc 7 brakes the friction disc 15. The specific process is as follows:

[0043] When the release lever 3 is rotated to another position, the abutment 4 on the release lever 3 will disengage from the push on the yoke 1, and the armature 6 mounted on the bolt 8 will move toward the brake disc 7 under the action of the spring 16, so that the armature 6 abuts against the brake disc 7, making the brake disc 7 unable to rotate, thereby realizing the braking process.

[0044] In the embodiment of the present application, a through hole 14 is further provided on the release plate 2 , and the through hole 14 is specifically located in the middle position of the release plate 2 . The release rod 3 is rotatably connected to the release plate 2 through the through hole 14 to facilitate the rotation of the release rod 3 on the yoke 1 .

[0045] In the present application, a method for using a cam manually released vehicle electromagnetic brake is also provided, comprising the following steps:

[0046] Step 1: Rotate the release lever 3. When the release lever 3 is rotated toward the outside of the yoke 1, the abutting portion 4 on the release lever 3 abuts against the yoke 1, and the bolt 8 drives the armature 6 to move toward the yoke 1, releasing the brake disc 7, and disengaging the braking process;

[0047] Step 2: Rotate the release lever 3 and move it toward the center of the yoke 1. The abutment portion 4 on the release lever 3 disengages from the abutment against the yoke 1. The armature 6 moves toward the brake disc 7 to fix the brake disc 7, completing the braking process.

[0048] The above structure can be directly applied to the automobile electromagnetic brake structure.

[0049] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A cam manually released electromagnetic brake for a vehicle, characterized in that: It includes a friction disc, a brake disc, an armature, a yoke, a release plate and a release lever; The middle part of the yoke is sleeved with a gear sleeve, and the armature and the brake disc are sleeved on the outside of the gear sleeve in sequence, wherein the brake disc is radially transmitted and axially slidably connected with the gear sleeve; The release plate is installed at the bottom of the magnetic yoke by bolts, and one end of the release plate is rotatably connected to the release rod, so that the release rod rotates on the release plate; The release lever is provided with an abutment portion at one end thereof facing the magnetic yoke, a cam curve is formed on the abutment portion, and the abutment portion abuts against the magnetic yoke through the cam curve; When the release rod is rotated to one position on the release plate, the abutment portion pushes the armature to move toward the direction of the yoke, the brake disc is released, and braking stops; when the release rod is rotated to another position on the release plate, the abutment portion disengages from pushing the yoke, the armature moves toward the direction of the brake disc, the brake disc is fixed, and braking is achieved.

2. A cam manually released vehicle electromagnetic brake according to claim 1, characterized in that: Bolt holes are provided at positions corresponding to the bolts on the yoke and the armature, and the bolts are located in the bolt holes, so that the yoke and the armature move along the bolts; A limiting member is provided at one end of the bolt, and the limiting member limits the armature.

3. The cam manually released electromagnetic brake for a vehicle according to claim 2, characterized in that: A release gap is formed between the yoke and the armature, and the abutment portion pushes the yoke to move in a direction toward the armature through the release gap.

4. The cam manually released electromagnetic brake for a vehicle according to claim 1, characterized in that: Friction plates are arranged on both sides of the brake disc, and the armature abuts against the brake disc through the friction plates.

5. The cam manually released electromagnetic brake for a vehicle according to claim 1, characterized in that: The magnetic yoke is provided with a groove, a spring is arranged in the groove, one end of the spring abuts against the magnetic yoke, and the other end of the spring abuts against the armature.

6. The cam manually released electromagnetic brake for a vehicle according to claim 1, characterized in that: The release plate is provided with a through hole, the through hole is located in the middle of the release plate, and the release rod is rotatably connected to the release plate through the through hole.

7. A method for using a vehicle electromagnetic brake with a cam manual release as claimed in claim 1, characterized in that: The steps include: Step 1: Rotate the release lever. When the release lever is rotated toward the outside of the yoke, the abutting portion on the release lever abuts against the yoke, and the bolt drives the armature to move toward the yoke, releasing the brake disc and disengaging from the braking process. Step 2: Rotate the release lever to move it toward the center of the yoke, so that the abutment on the release lever disengages from the abutment against the yoke, and the armature moves toward the brake disc to fix the brake disc, thereby completing the braking process.

8. Application of a vehicle electromagnetic brake with a cam manual release as claimed in claim 1 in motor shaft braking.

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