Fully-sealed brake with handle

Abstract

The fully-sealed brake comprises a cover plate used for being fixed to a motor and a shell with an opening in one side, the cover plate is matched to the opening side of the shell and defines a containing cavity, at least an armature, a friction plate and an electromagnetic coil are arranged in the containing cavity, and the fully-sealed brake is characterized by further comprising the handle; the handle is provided with a matching section connected with the shell, the matching section is constructed to be a plate body and is provided with a first through hole, the shell is constructed to be provided with a second through hole, and a first bolt penetrates through the first through hole and the second through hole; the first bolt tightly presses the matching section and the shell in the axis direction of the first bolt. Therefore, when the first bolt is tightened, the matching section is forcefully pressed to the corresponding surface of the shell in the axis direction of the bolt, so that the contact surface between the matching section and the shell is tightly attached to form a sealing interface, and long-term use of the brake in a humid or dusty environment is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a fully sealed brake with a handle. Background Technology

[0002] Electromagnetic brakes are typically mounted on motors. Their friction plates engage with the motor's shaft, and an armature is located on one side of the friction plate. The armature is pushed against the friction plate by a built-in spring, thus restricting the rotational freedom of the shaft through the braking effect of the friction plates. To release the brake, an electromagnetic coil inside the electromagnetic brake's actuator attracts the armature away from the friction plate, releasing the braking effect.

[0003] In some cases, the electromagnetic coil may fail, preventing the braking state from being released; for example, the coil may be damaged, or the power source may be a portable power source that has run out of power. Therefore, a separate handle or other grippable component is needed for manual release of the brake, allowing the user to manually disengage the device. However, the electromagnetic brake must also meet sealing requirements; failure to do so may lead to water leakage, a shortened lifespan, and other negative consequences. Adding the aforementioned handle would damage the overall external structure of the electromagnetic brake, thereby compromising its sealing structure and resulting in a series of negative effects, including reduced lifespan. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a fully sealed brake with a handle, which can maintain a good sealing structure even after the handle is added.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A fully sealed brake with a handle includes a cover plate for fixing to a motor and a housing with an opening on one side. The cover plate fits into the open side of the housing and defines a receiving cavity. At least an armature, a friction plate, and an electromagnetic coil are disposed in the receiving cavity. The brake is characterized by further including a handle. The handle has a mating section that connects to the housing. The mating section is constructed as a plate and has a first through hole. The housing has a second through hole. A first bolt passes through the first through hole and the second through hole. The first bolt presses the mating section and the housing together along its own axial direction.

[0007] The beneficial effects of this invention are as follows: When the first bolt is tightened, the mating section is forcefully pressed against the corresponding surface of the housing along the bolt axis, resulting in a tight fit between the mating section and the housing. This pressing action generates localized high pressure at the point where the first bolt passes through, effectively sealing the minute gaps and thus forming a reliable sealing interface at the connection point. This maintains the overall sealing structure of the brake, avoids a decrease in sealing performance due to the handle setting, and ensures the long-term use of the brake in humid or dusty environments.

[0008] Furthermore, the nut of the first bolt is located inside the receiving cavity, and the bolt section of the first bolt is fitted with a nut, one side of which presses against the mating section away from the housing.

[0009] Furthermore, the first bolt also penetrates the armature, and the side wall of the first bolt facing the screw is in contact with the side wall of the armature away from the housing; and a second spring is also provided on the side wall of the nut facing the screw, the second spring having elongation potential energy.

[0010] Furthermore, a stepped surface is formed on the inner side of the housing, the stepped surface is opposite to the armature, and a third through hole is formed in the area where the armature is opposite to the stepped surface. The second spring is disposed in the third through hole; one end of the second spring abuts against the stepped surface, and the other end abuts against the nut.

[0011] Furthermore, a gap space is defined between the stepped surface and the cover plate, and the width of the gap space in the direction of the brake axis is greater than the sum of the thicknesses of the armature and the friction plate.

[0012] Furthermore, the diameter of the friction plate is smaller than the diameter of the armature to avoid the nut of the first bolt.

[0013] Furthermore, the cover plate is disposed on the inner periphery of the open side of the housing, and the outer peripheral wall of the cover plate is fitted with the inner peripheral wall of the housing.

[0014] Furthermore, a first waterproof groove is formed on the edge of the cover plate, and a first sealing strip is provided in the first waterproof groove. The first sealing strip is interference-fitted between the side wall of the first waterproof groove and the inner side wall of the shell.

[0015] Furthermore, it also includes a second bolt, which passes through the cover plate and the housing. The housing is provided with a second waterproof groove for accommodating the nut of the second bolt. A second sealing strip is pressed between the side of the nut facing the screw and the bottom wall of the second waterproof groove. Attached Figure Description

[0016] Figure 1 A bottom view of a fully sealed brake with a handle according to some embodiments of this application;

[0017] Figure 2 This is a cross-sectional view of a fully sealed brake with a handle according to some embodiments of this application;

[0018] Figure 3 A view of a fully sealed brake with a handle according to some embodiments of this application;

[0019] Figure 4 for Figure 3 A cross-sectional view of the centerline AA;

[0020] Figure 5 for Figure 2 A magnified view of a portion of region B in the middle;

[0021] Figure 6 for Figure 2 A magnified view of a portion of region C.

[0022] In the picture:

[0023] 100-Brake;

[0024] 10-Cover plate, 11-First waterproof groove, 12-First sealing strip;

[0025] 20-Shell, 21-Second waterproof groove, 22-Second sealing strip, 23-Platform;

[0026] 30 - Friction plate, 31 - Spline sleeve;

[0027] 40-Armor;

[0028] 50 - Handle, 51 - Mating section;

[0029] 60 - First bolt, 61 - Nut;

[0030] 70 - Second bolt;

[0031] 80 - Second spring;

[0032] 90 - Electromagnetic coil. Detailed Implementation

[0033] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] See Figures 1-6 This utility model provides a fully sealed brake with a handle, including a cover plate 10 for fixing to a motor, and a housing 20 with an opening on one side; as shown Figure 1As shown, the cover plate 10 is constructed as a flange, and the housing 20 is configured as a hollow structure with one open side. The flange and the open side of the housing 20 fit together to define the receiving cavity. Along the axial direction of the brake 100, the aforementioned cover plate 10, as well as the friction plate 30 and armature 40 parallel to the cover plate 10, are arranged in sequence. A first spring (not shown in the figure) and an electromagnetic coil 90 are arranged next to the armature 40. A spline sleeve 31 is arranged at the center of the friction plate 30. The internal tooth structure of the spline sleeve 31 is shown in [reference needed]. Figure 2 As shown.

[0035] A handle 50 is provided on the plate surface of the housing 20 on the side away from the cover plate 10.

[0036] Continue to refer to Figure 1 Understanding that the handle 50 has a mating section 51 that connects to the housing 20, the mating section 51 being a plate with a first through hole, and the housing 20 having a second through hole, with a first bolt 60 passing through the first and second through holes to press the mating section 51 and the housing 20 together along their own axial direction. For example Figure 3 As shown, the handle 50 can be configured as a single plate structure, and its construction is Y-shaped. The two ends of the Y-shaped structure are the aforementioned mating sections 51, which are provided with the aforementioned first through holes. Thus, when the first bolt 60 is tightened, the mating section 51 (constructed as a plate) is forcefully pressed against the corresponding surface of the housing 20 in the bolt axial direction, resulting in a tight fit between the mating section 51 and the housing 20. This pressing action generates localized high pressure at the point where the first bolt 60 passes through (i.e., around the first and second through holes), effectively sealing the minute gaps and forming a reliable sealing interface at the connection point. This maintains the overall sealing structure of the brake 100, avoids a decrease in sealing performance due to the handle 50 configuration, and ensures the long-term use of the brake 100 in humid or dusty environments.

[0037] Of course, in other examples, the handle 50 can also be set as any grippable structure such as a bent rod or a column.

[0038] Combination Figure 4 As shown, in some examples, the nut of the first bolt 60 is located inside the receiving cavity, and the bolt section of the first bolt 60 is fitted with a nut 61. One side of the nut 61 presses against the side of the mating section 51 away from the housing 20, thus pressing the mating section 51 tightly against the housing 20. During assembly, personnel can change the degree of tightness of the nut 61 on the mating part and the housing 20 by tightening the exposed nut 61. At the same time, a seal can be formed at the first through hole by the tight fit between one side of the nut 61 and the edge of the first through hole.

[0039] Of course, in some other embodiments, the setting direction of the first bolt 60 can also be reversed, that is, the nut 61 is set inside the receiving cavity and the screw cap is set outside the receiving cavity. The specific structure will not be described in detail here.

[0040] Continue to refer to Figure 4 To illustrate, the first bolt 60 extends to the armature 40, and the nut of the first bolt 60 protrudes into the armature 40. The side wall of the nut facing the screw is in contact with the side wall of the armature 40 away from the housing 20, so that the distance between the housing 20 and the armature 40 is defined by the interval length between the nut 61 and the nut. Furthermore, a second spring 80 is also provided against the side wall of the nut facing the screw. The second spring 80 has the potential energy of extension; that is, the second spring 80 exerts a thrust on the nut away from the cover plate 10, thereby keeping the nut 61 at the other end pressed against the mating part by the second spring 80, providing a sealing force between the mating part and the cover plate 10.

[0041] More specifically, the housing 20 contains an annular platform 23. The platform 23 has a blind hole at its center to accommodate the spline sleeve 31 at the center of the friction plate 30. The platform 23 has a stepped surface along the axial direction of the brake 100, and this stepped surface is opposite to the armature 40. A gap is defined between the stepped surface and the cover plate 10. The width of this gap along the axial direction of the brake 100 is greater than the sum of the thicknesses of the armature 40 and the friction plate 30. Thus, in the braking state (when the armature 40 is pushed away from the stepped surface by the spring), a certain gap, for example, 2 mm, is maintained between the stepped surface and the armature 40.

[0042] The armature 40 has a third through hole in the area opposite to the step surface. The aforementioned second spring 80 is installed in the third through hole. One end of the second spring 80 pushes against the step surface, and the other end pushes against the nut. Thus, when not braking, the elastic force of the second spring 80 keeps the nut and the step surface apart, so that there is a sufficient gap between the aforementioned step surface and the armature 40.

[0043] Understandably, when the electromagnetic coil 90 of the brake 100 fails or cannot be energized, the operator applies force outward by holding the end of the handle 50 (in the direction away from the housing 20). The Y-shaped plate of the handle 50 drives the mating section 51 to move synchronously, so that the mating section 51 transmits the tension to the nut through the first bolt 60, forcing the nut to move away from the cover plate 10. During the displacement of the nut, the second spring 80 is squeezed, so that it is compressed and stored in the gap between the armature 40 and the step surface. At the same time, when the nut moves, it drives the armature 40 to move away from the friction plate 30 synchronously through its side wall, overcoming the original clamping force of the first spring, so that a separation gap is generated between the armature 40 and the friction plate 30. When the separation distance between the armature 40 and the friction plate 30 exceeds the effective braking stroke of the friction plate 30 (as mentioned above, a 2mm gap), the shaft resumes free rotation.

[0044] In this example, the diameter of the friction plate 30 is smaller than the diameter of the armature 40, and the nut is also disposed in the space between the armature 40 and the cover plate 10 to avoid the nut of the first bolt 60.

[0045] To ensure the sealing effect of the brake 100, in some embodiments, the cover plate 10 is disposed on the inner periphery of the open side of the housing 20, the outer peripheral wall of the cover plate 10 is fitted with the inner peripheral wall of the housing 20, and the housing 20 covers the cover plate 10 to avoid excessive assembly gaps.

[0046] Furthermore, in combination Figure 5 and Figure 6 As shown, a first waterproof groove 11 is constructed on the edge of the cover plate 10. The first waterproof groove 11 is located on the outer side of the cover plate 10. One side wall of the first waterproof groove 11 is opposite to the inner side wall of the housing 20 and a first sealing strip 12 is provided therein. The first sealing strip 12 is interference-fitted between the side wall of the first waterproof groove 11 and the inner side wall of the housing 20 to seal the fitting gap between the housing 20 and the cover plate 10. Furthermore, the brake 100 also includes a second bolt 70, which passes through both the cover plate 10 and the housing 20 to fix them together. The housing 20 is provided with a second waterproof groove 21 to accommodate the nut of the second bolt 70. A second sealing strip 22 is pressed between the side of the nut facing the screw and the bottom wall of the second waterproof groove 21 to improve the sealing effect.

[0047] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A fully sealed brake with a handle, comprising a cover plate for fixing to a motor, and a housing with an opening on one side, the cover plate fitting into the open side of the housing and defining a receiving cavity, the receiving cavity containing at least an armature, a friction plate, and an electromagnetic coil, characterized in that, It also includes a handle; The handle has a mating section that connects to the housing. The mating section is constructed as a plate and has a first through hole. The housing has a second through hole, and a first bolt passes through the first through hole and the second through hole. The first bolt presses the mating section and the housing together along its own axial direction.

2. The fully sealed brake with handle according to claim 1, characterized in that, The nut of the first bolt is located inside the receiving cavity, and the bolt section of the first bolt is fitted with a nut. One side of the nut presses against the mating section away from the housing.

3. The fully sealed brake with handle according to claim 2, characterized in that, The first bolt also passes through the armature, and the side wall of the first bolt facing the screw is in contact with the side wall of the armature away from the housing; and a second spring is also provided against the side wall of the nut facing the screw, the second spring having elongation potential energy.

4. The fully sealed brake with handle according to claim 3, characterized in that, A stepped surface is formed on the inner side of the housing, the stepped surface is opposite to the armature, and a third through hole is formed in the area where the armature is opposite to the stepped surface, and the second spring is disposed in the third through hole; One end of the second spring is pushed against the stepped surface, and the other end is pushed against the nut.

5. The fully sealed brake with handle according to claim 4, characterized in that, A gap space is defined between the stepped surface and the cover plate, and the width of the gap space in the direction of the brake axis is greater than the sum of the thicknesses of the armature and the friction plate.

6. The fully sealed brake with handle according to claim 3, characterized in that, The diameter of the friction plate is smaller than the diameter of the armature to avoid the nut of the first bolt.

7. The fully sealed brake with handle according to claim 1, characterized in that, The cover plate is disposed on the inner periphery of the open side of the housing, and the outer peripheral wall of the cover plate is in contact with the inner peripheral wall of the housing.

8. The fully sealed brake with handle according to claim 7, characterized in that, A first waterproof groove is formed on the edge of the cover plate, and a first sealing strip is provided in the first waterproof groove. The first sealing strip is interference-fitted between the side wall of the first waterproof groove and the inner side wall of the shell.

9. The fully sealed brake with handle according to claim 7, characterized in that, It also includes a second bolt, which passes through the cover plate and the housing, and the housing is provided with a second waterproof groove to accommodate the nut of the second bolt; A second sealing strip is pressed between the side of the nut facing the screw and the bottom wall of the second waterproof groove.

Images