Brake and brake motor

Abstract

The utility model discloses a brake and a brake motor, and relates to the technical field of brakes. The coil is fixedly sleeved in the shell; the rotating shaft is rotationally sleeved in the shell; the magnetized body is axially and movably connected with the shell; the limiting bulge is connected to the magnetized body; the limiting rod is connected with the rotating shaft and is matched with the limiting bulge; one end of the elastic piece is in contact with the shell, and the other end of the elastic piece is in contact with the magnetized body. The utility model has the technical effect that the brake precision is high.

Description

Technical Field

[0001] The utility model relates to the technical field of brakes, in particular to a brake and a brake motor. Background Art

[0002] A brake motor is a special motor that integrates a motor and a brake. It has the advantage of easy braking and is widely used in processing machine tools, packaging machinery and other equipment.

[0003] Related brake motors generally use friction plates for friction braking, which can easily lead to low braking accuracy and thus poor braking performance. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a brake and a brake motor, which have high braking precision.

[0005] In order to solve the above problems, the technical solution provided by the utility model is:

[0006] A brake, comprising:

[0007] case;

[0008] A coil fixedly sleeved in the housing;

[0009] A rotating shaft rotatably sleeved in the housing;

[0010] A magnetized body axially movably connected to the housing;

[0011] A limiting protrusion connected to the magnetized body;

[0012] A limiting rod connected to the rotating shaft, wherein the limiting rod cooperates with the limiting protrusion;

[0013] An elastic member, one end of which is in contact with the shell, and the other end of which is in contact with the magnet.

[0014] Optionally, the limiting rod includes:

[0015] A mounting portion sleeved on the outside of the rotating shaft;

[0016] A rod body connected to the mounting portion, wherein the rod body cooperates with the limiting protrusion.

[0017] Optionally, also include:

[0018] A first flat portion disposed outside the rotating shaft;

[0019] A second flattened portion is disposed in the mounting portion, and the second flattened portion cooperates with the first flattened portion.

[0020] Optionally, the number of the rod bodies and the number of the limiting protrusions are both two, and the two rod bodies and the two limiting protrusions correspond to each other.

[0021] Optionally, it further comprises a plurality of guide posts, one ends of the plurality of guide posts are fixedly connected to the shell, and the other ends of the plurality of guide posts are movably connected to the magnet.

[0022] Optionally, the plurality of guide posts are evenly distributed along the circumference of the magnetized body.

[0023] Optionally, it also includes a limiting step fixedly connected to the shell, and one end of the elastic member is in contact with the limiting step.

[0024] Optionally, a fastener is also included, and the fastener, the rotating shaft and the limiting rod are all detachably connected.

[0025] Optionally, it also includes a mounting base sleeved in the shell, and the coil is fixedly connected in the mounting base.

[0026] A brake motor comprises a brake and a motor body, wherein the outer shell of the motor body and the housing are detachably connected, and the output shaft of the motor body is connected to the rotating shaft.

[0027] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects: the brake produces mechanical braking of the rotating shaft through the limiting protrusion and the limiting rod instead of relying on the friction plate, which makes it easy to make the braking accuracy of the brake high, thereby achieving good braking performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is one of the structural schematic diagrams of a brake motor proposed in an embodiment of the utility model;

[0029] Figure 2 A partial structural schematic diagram of a brake motor proposed in an embodiment of the utility model;

[0030] Figure 3 This is a second structural schematic diagram of a brake motor proposed in an embodiment of the utility model;

[0031] Figure 4 for Figure 3 Partial diagram of A in the middle;

[0032] In the figure: 1. shell; 11. limit step; 2. coil; 3. rotating shaft; 31. first flat potential part; 4. magnetized body; 41. limit protrusion; 5. limit rod; 51. mounting part; 511. second flat potential part; 52. rod body; 6. elastic member; 7. guide column; 8. fastener; 9. mounting seat; 10. motor body; 101. shell; 102. output shaft. DETAILED DESCRIPTION

[0033] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

[0034] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings. The words "first", "second", etc. described in the present utility model are set for the convenience of describing the technical solution of the present utility model, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments in the present application can be combined with each other. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not have contradictions or conflicts, all of which are within the scope of protection required by the present utility model.

[0035] Example 1

[0036] Combined with Figure 1-4 , this embodiment provides a brake, including:

[0037] Shell 1;

[0038] A coil 2 fixedly sleeved in the housing 1;

[0039] A rotating shaft 3 which is rotatably sleeved in the housing 1;

[0040] A magnet 4 axially movably connected to the housing 1;

[0041] A limiting protrusion 41 connected to the magnet 4;

[0042] A limiting rod 5 connected to the rotating shaft 3, the limiting rod 5 cooperates with the limiting protrusion 41;

[0043] The elastic member 6 has one end in contact with the housing 1 and the other end in contact with the magnetized body 4 .

[0044] Specifically, when braking is not required, the coil 2 is in an energized state, so that the coil 2 generates an electromagnetic force, thereby causing the magnet 4 to move toward the coil 2, and the magnet 4 drives the limiting protrusion 41 to move toward the coil 2, so that the limiting protrusion 41 does not hinder the limiting rod 5, thereby ensuring the normal rotation of the rotating shaft 3. At this time, the elastic member 6 is in a compressed state; when braking is required, the coil 2 is powered off, the elastic member 6 is reset, and the elastic member 6 drives the magnet 4 to move away from the coil 2, and the magnet 4 drives the limiting protrusion 41 to move away from the coil 2, so that the limiting protrusion 41 hinders the limiting rod 5, thereby braking the rotating shaft 3; in summary, the brake causes the rotating shaft 3 to generate mechanical braking through the limiting protrusion 41 and the limiting rod 5, rather than relying on the friction plate, so that the braking accuracy of the brake is high, thereby achieving good braking performance.

[0045] The shell 1 is used to carry the coil 2, the rotating shaft 3, etc.; the material of the magnet 4 can be iron, cobalt or nickel, etc.; the material of the elastic member 6 can be rubber or spring steel, etc.

[0046] Further, such as Figure 1 and 4 , the limiting rod 5 comprises:

[0047] A mounting portion 51 sleeved on the outside of the rotating shaft 3;

[0048] The rod body 52 connected to the mounting portion 51 cooperates with the limiting protrusion 41 .

[0049] Specifically, in order to increase the integrity, the mounting portion 51 and the rod body 52 are connected in an integrally formed manner.

[0050] Further, such as Figure 4 , also includes:

[0051] A first flat portion 31 disposed outside the rotating shaft 3;

[0052] The second flattened portion 511 is disposed in the mounting portion 51 , and the second flattened portion 511 cooperates with the first flattened portion 31 .

[0053] Specifically, the first flattened portion 31 cooperates with the second flattened portion 511 to prevent the rotating shaft 3 and the mounting portion 51 from rotating relative to each other.

[0054] Further, such as Figure 1 The number of the rod bodies 52 and the number of the limiting protrusions 41 are both two, and the two rod bodies 52 and the two limiting protrusions 41 correspond to each other.

[0055] Specifically, the two rod bodies 52 and the two limiting protrusions 41 cooperate with each other, so as to improve the braking stability of the brake.

[0056] Further, such as Figure 2 , and further includes a plurality of guide posts 7 , one end of each of the guide posts 7 is fixedly connected to the housing 1 , and the other end of each of the guide posts 7 is movably connected to the magnet 4 .

[0057] Specifically, the guide posts 7 facilitate the stability of the relative axial movement between the housing 1 and the magnet 4 . The specific number of the guide posts 7 is not limited, and is preferably four.

[0058] Further, such as Figure 1 , a plurality of guide posts 7 are evenly distributed along the circumference of the magnet 4 .

[0059] Specifically, the circumferential uniform distribution facilitates increasing the force uniformity of the magnet 4 .

[0060] Further, such as Figure 2 , and also includes a limiting step 11 fixedly connected to the shell 1, and one end of the elastic member 6 is in contact with the limiting step 11.

[0061] Specifically, the limiting step 11 is used to support the elastic member 6 to facilitate the extension and retraction of the elastic member 6 .

[0062] Further, such as Figure 2 , and also includes a fastener 8, which is detachably connected to the rotating shaft 3 and the limiting rod 5.

[0063] Specifically, the fastener 8 may be a countersunk screw, a semi-countersunk screw, or the like.

[0064] Further, such as Figure 2 , and also includes a mounting base 9 sleeved in the shell 1, and the coil 2 is fixedly connected in the mounting base 9.

[0065] Specifically, the mounting seat 9 is used to fix the coil 2 on the housing 1 .

[0066] This embodiment also provides a brake motor, including a brake in this embodiment, and also including a motor body 10, the shell 101 of the motor body 10 and the shell 1 are detachably connected, and the output shaft 102 of the motor body 10 is connected to the rotating shaft 3.

[0067] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A brake, characterized in that: include: case; A coil fixedly sleeved in the housing; A rotating shaft rotatably sleeved in the housing; A magnetized body axially movably connected to the housing; A limiting protrusion connected to the magnetized body; A limiting rod connected to the rotating shaft, wherein the limiting rod cooperates with the limiting protrusion; An elastic member, one end of which is in contact with the shell, and the other end of which is in contact with the magnet.

2. A brake according to claim 1, characterized in that: The limiting rod comprises: A mounting portion sleeved on the outside of the rotating shaft; A rod body connected to the mounting portion, wherein the rod body cooperates with the limiting protrusion.

3. A brake according to claim 2, characterized in that: Also includes: A first flat portion disposed outside the rotating shaft; A second flattened portion is disposed in the mounting portion, and the second flattened portion cooperates with the first flattened portion.

4. A brake according to claim 2, characterized in that: The number of the rod bodies and the number of the limiting protrusions are both two, and the two rod bodies and the two limiting protrusions correspond to each other.

5. A brake according to any one of claims 1 to 4, characterized in that: It also includes a plurality of guide posts, one end of each of which is fixedly connected to the shell, and the other end of each of which is movably connected to the magnet.

6. A brake according to claim 5, characterized in that: The plurality of guide posts are evenly distributed along the circumference of the magnetized body.

7. A brake according to any one of claims 1 to 4, characterized in that: It also includes a limiting step fixedly connected to the shell, and one end of the elastic member is in contact with the limiting step.

8. A brake according to any one of claims 1 to 4, characterized in that: It also includes a fastener, and the fastener, the rotating shaft and the limiting rod are all detachably connected.

9. A brake according to any one of claims 1 to 4, characterized in that: It also includes a mounting seat sleeved in the shell, and the coil is fixedly connected in the mounting seat.

10. A brake motor, characterized in that: It comprises a brake as described in any one of claims 1 to 9, and also comprises a motor body, the outer shell of the motor body and the housing are detachably connected, and the output shaft of the motor body is connected to the rotating shaft.

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