Spring pressurization electromagnetic brake

Abstract

The utility model relates to the technical field of electromagnetic brakes, and provides a spring pressurization electromagnetic brake which comprises a stator, an armature, a brake disc and a mounting flange which are sequentially arranged in the axial direction, and further comprises a handle arranged between the mounting flange and the armature. A mounting through hole for the brake disc to penetrate through is formed in the middle of the handle, and the end face of one side of the handle abuts against the armature; the steel ball is clamped between the mounting flange and the handle, and a groove used for containing the steel ball is formed in the end face of one side of the handle; the handle is circumferentially shifted to rotate so as to drive the steel ball to move out of the groove, and the steel ball pushes the handle and the armature to laterally move. According to the utility model, the handle is sleeved outside the brake disc, so that the axial size of the brake is reduced, the volume of the brake is reduced, and the thickness of the brake is thinner.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic brakes, in particular to a spring-pressurized electromagnetic brake. Background Art

[0002] The working principle of electromagnetic spring-loaded brake is based on the interaction between electromagnetic force and spring force: Power-on state: When the electromagnet is energized, electromagnetic force is generated to attract the armature, so that the brake friction disc is separated from the dual friction disc, the braking state is released, and the motor shaft can rotate freely. Power-off state: When the electromagnet loses power, the electromagnetic force disappears, and the spring system relies on its own elastic force to press the armature and the brake friction disc to the dual friction disc, generating friction to stop the motor shaft from rotating and achieve braking.

[0003] The existing electromagnetic brake with a release handle can release the brake by manually operating the handle when the equipment fails or the power is off, so as to facilitate equipment maintenance or safe equipment movement. The conventional handle and the brake are stacked axially, as shown in the publication number CN215444860U. The brake of this structure is relatively large in size and thicker in size, which is difficult to apply in some narrow application scenarios. Therefore, a spring-loaded electromagnetic brake that is more volume-saving and thinner is designed. Utility Model Content

[0004] The utility model aims to provide a spring-pressurized electromagnetic brake which has a smaller volume and a thinner appearance and is convenient for application in equipment with narrow space.

[0005] The embodiment of the utility model is realized through the following technical scheme: a spring-pressurized electromagnetic brake, comprising a stator, an armature, a brake disc and a mounting flange arranged axially in sequence, and also comprising a handle arranged between the mounting flange and the armature; a mounting through hole for the brake disc to pass through is provided in the middle of the handle, and one end surface of the handle abuts against the armature; a steel ball is clamped between the mounting flange and the handle, and one end surface of the handle is provided with a groove for loading the steel ball; the handle is rotated by circumferentially to drive the steel ball to move out of the groove, and the steel ball pushes the handle and the armature to move sideways.

[0006] Furthermore, a rod portion is provided in the radial direction of the handle, and the rod portion is slidably connected to an extended handle rod.

[0007] Furthermore, a sliding groove is provided in the middle of the rod portion, and a pin is provided at the front end of the extending handle rod for fitting and inserting into the sliding groove.

[0008] Furthermore, the extension handle rod is a U-shaped plate structure, and two sides of the rod portion are provided with recessed grooves for the extension handle rod to be inserted and slid accordingly.

[0009] Furthermore, the cross section of the pin shaft is square or rectangular.

[0010] Furthermore, at least three grooves are arranged evenly spaced around the handle; and the groove has an arc-shaped structure.

[0011] Furthermore, it also includes a connecting screw and a sleeve, the two ends of the sleeve are respectively in contact with the mounting flange and the stator, and the connecting screw passes through the mounting flange and the sleeve in sequence to be connected to the stator.

[0012] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0013] 1. By placing the handle and the brake disc in the gap between the mounting flange and the armature, and the brake disc is nested in the inner hole of the handle, a certain axis thickness dimension is saved, making the overall thickness of the manufacturing device lower, which is conducive to application in scenarios with narrow installation space;

[0014] 2. The handle bar can be extended, making manual release easier and more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the structure of a spring-loaded electromagnetic brake provided in an embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the spring-pressurized electromagnetic brake in the utility model;

[0018] Figure 3 for Figure 2 A local enlarged view of point B in FIG.

[0019] Figure 4 This is a schematic diagram of the structure when a groove is opened on the mounting flange.

[0020] Icons: 1- stator, 2- armature, 3- brake disc, 4- mounting flange, 5- handle, 51- mounting through hole, 52- groove, 53- rod, 531- slide groove, 532- countersunk groove, 54- extension handle, 541- pin, 6- sleeve, 7- connecting screw, 8- steel ball. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] The following is further described in conjunction with specific embodiments. Figure 1-Figure 3 As shown, the present embodiment is a spring-pressurized electromagnetic brake, comprising a stator 1, an armature 2, a brake disc 3 and a mounting flange 4 which are arranged in sequence in the axial direction, and also comprising a handle 5 which is arranged between the mounting flange 4 and the armature 2; a mounting through hole 51 for the brake disc 3 to pass through is provided in the middle of the handle 5, and one end surface of the handle 5 abuts against the armature 2; a steel ball 8 is clamped between the mounting flange 4 and the handle 5, and one end surface of the handle 5 is provided with a groove 52 for loading the steel ball 8; the handle 5 is rotated in the circumferential direction to drive the steel ball 8 to move out of the groove 52, and the steel ball 8 pushes the handle 5 and the armature 2 to move sideways; specifically, the brake through hole 51 in the present invention is provided in the middle of the handle 5 for the brake disc 3 to pass through, and one end surface of the handle 5 abuts against the armature 2; a steel ball 8 is clamped between the mounting flange 4 and the handle 5, and one end surface of the handle 5 is provided with a groove 52 for loading the steel ball 8; the steel ball 8 is driven to move out of the groove 52 by circumferentially toggling the handle 5, and the steel ball 8 pushes the handle 5 and the armature 2 to move sideways; specifically, the brake through hole 51 in the present invention is provided in the present invention; The handle 5 and the brake disc 3 are both arranged between the mounting flange 4 and the armature 2, and a mounting through hole 51 is opened in the middle of the handle 5, so that the brake disc 3 can pass through the handle 5, and the handle 5 is sleeved on the outside of the brake disc 3, thereby reducing the axial size thickness; in the power-off state, the electromagnetic coil of the stator 1 loses power, so that the armature 2 is supported by the spring to contact the armature 2 and the brake disc 3, and the operator drives the handle 5 to rotate a certain angle in the circumferential direction, driving the steel ball 8 to move out of the groove 52, and the steel ball 8 and the mounting flange 4 cooperate to support the handle 5 to push the armature 2 to compress the spring, so that the armature 2 is separated from the brake disc 3 to release the brake.

[0025] In addition, if Figure 4 As shown, the groove may also be provided on one side of the mounting flange 4 , but not on the end surface of the handle 5 .

[0026] like Figure 1 and Figure 2As shown, the handle 5 in this embodiment is radially provided with a rod portion 53, and the rod portion 53 is slidably connected with an extension handle rod 54; a sliding groove opening 531 is opened in the middle of the rod portion 53, and a pin shaft 541 for fitting and inserting into the sliding groove opening 531 is provided at the front end of the extension handle rod 54; specifically, in order to make the manual driving handle 5 more labor-saving when releasing, the extension handle rod 54 can be lengthened by pulling the extension handle rod 54 radially outward by hand, and the pin shaft 541 can be moved along the sliding groove opening 531 to adjust the length of the driving rod.

[0027] like Figure 2 As shown, the extension handle rod 54 is a U-shaped plate structure, and grooves 532 for the extension handle rod 54 to be inserted and slided are provided on both sides of the rod portion 53; the cross-section of the pin shaft 541 is square or rectangular; specifically, the adaptation and fit between the pin shaft 541 and the sliding groove mouth 531 and the inner side of the extension handle rod 54 and the groove 532 ensures that when the extension handle rod 54 is rotated, the extension handle rod 54 will not rotate relative to the rod portion 53.

[0028] In order to enable the handle 5 to move horizontally evenly during manual release, at least three grooves 52 are evenly spaced around the handle 5; the groove 52 adopts an arc-shaped structure to guide the steel ball 8, making it easier for the steel ball 8 to slide out and manual release easier.

[0029] This embodiment also includes a connecting screw 7 and a sleeve 6, the two ends of the sleeve 6 are respectively abutted against the mounting flange 4 and the stator 1, and the connecting screw 7 passes through the mounting flange 4 and the sleeve 6 in turn and is connected to the stator 1, clamping the brake disc 3 and the handle 5 between the mounting flange 4 and the armature 2.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spring-loaded electromagnetic brake, comprising a stator (1), an armature (2), a brake disc (3) and a mounting flange (4) arranged in sequence axially, characterized in that: It also includes a handle (5) disposed between the mounting flange (4) and the armature (2); A mounting through hole (51) for the brake disc (3) to pass through is provided in the middle of the handle (5), and one end surface of the handle (5) is in contact with the armature (2); A steel ball (8) is clamped between the mounting flange (4) and the handle (5), and a groove (52) for receiving the steel ball (8) is provided on one end surface of the handle (5); The handle (5) is rotated in the circumferential direction to drive the steel ball (8) to move out of the groove (52), and the steel ball (8) pushes the handle (5) and the armature (2) to move sideways.

2. The spring-loaded electromagnetic brake according to claim 1, characterized in that: The handle (5) is provided with a rod portion (53) in the radial direction, and the rod portion (53) is slidably connected to an extended handle rod (54).

3. The spring-loaded electromagnetic brake according to claim 2, characterized in that: A sliding groove opening (531) is provided in the middle of the rod portion (53), and a pin shaft (541) adapted to be inserted into the sliding groove opening (531) is provided at the front end of the extension handle rod (54).

4. The spring-loaded electromagnetic brake according to claim 3, characterized in that: The extension handle rod (54) is a U-shaped plate structure, and two sides of the rod portion (53) are provided with sink grooves (532) for the extension handle rod (54) to be inserted and slid accordingly.

5. The spring-loaded electromagnetic brake according to claim 3, characterized in that: The cross section of the pin shaft (541) is square or rectangular.

6. The spring-loaded electromagnetic brake according to claim 1, characterized in that: The grooves (52) are provided with at least three evenly spaced grooves around the handle (5).

7. The spring-loaded electromagnetic brake according to claim 6, characterized in that: The groove (52) has an arc-shaped structure.

8. The spring-loaded electromagnetic brake according to claim 1, characterized in that: It also includes a connecting screw (7) and a sleeve (6), the two ends of the sleeve (6) are respectively in contact with the mounting flange (4) and the stator (1), and the connecting screw (7) passes through the mounting flange (4) and the sleeve (6) in sequence to be connected to the stator (1).

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