CN115149714A - Brake motor and engineering mechanical equipment - Google Patents
Brake motor and engineering mechanical equipment Download PDFInfo
- Publication number
- CN115149714A CN115149714A CN202210399230.4A CN202210399230A CN115149714A CN 115149714 A CN115149714 A CN 115149714A CN 202210399230 A CN202210399230 A CN 202210399230A CN 115149714 A CN115149714 A CN 115149714A
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- China
- Prior art keywords
- motor
- brake
- iron core
- rear cover
- brake motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a brake motor and engineering mechanical equipment, wherein the brake motor comprises: a movable iron core; motor body, the setting is moving the front side of iron core and including the lid behind the motor as quiet iron core, and the lid can regard as quiet iron core and move iron core interact and produce electromagnetic force behind the brake motor's the motor in this embodiment, and this motor back lid not only has the sealing action to motor body promptly, has realized the integrated design of lid and quiet iron core behind the motor, has the reduction part quantity, compact structure, and axial length is short, and whole small, occupation space is few and application scope is wider advantage.
Description
Technical Field
The invention relates to the technical field of brake equipment, in particular to a brake motor and engineering mechanical equipment.
Background
The servo motor and the brake are mostly split type structures when in use at present, the structure ensures that the servo motor and the brake are separately installed, the integral volume and the occupied space of the assembly bodies of the servo motor and the brake are increased, the assembly steps and the integral installation difficulty are increased, the manufacturing cost is increased, and the manufacturing efficiency is reduced; in addition, the split design also requires that braking force be transmitted to the servo motor through an external transmission mechanism, resulting in brake force attenuation and affecting brake stability.
Disclosure of Invention
The invention aims to provide a brake motor and engineering mechanical equipment, which have the advantages of compact structure, short axial length and small volume.
In order to achieve the above object, a first aspect of the present invention provides a brake motor including:
a movable iron core;
the motor body is arranged on the front side of the movable iron core and comprises a motor rear cover as a static iron core.
In an embodiment of the invention, the brake motor further comprises a coil assembly, and a groove for installing the coil assembly is formed in the motor rear cover.
In the embodiment of the invention, the brake motor further comprises a brake spring, and a brake spring mounting hole is formed in the rear cover of the motor.
In the embodiment of the invention, the motor rear cover comprises a first circular ring part and a second circular ring part arranged on the outer side of the first circular ring part, the groove is positioned on the first circular ring part, the brake spring mounting hole is positioned on the second circular ring part, and the section thickness of the first circular ring part is larger than that of the second circular ring part.
In an embodiment of the invention, the first annular part is provided with a through hole, the peripheral wall of the through hole is provided with a retaining ring installation groove, the motor body further comprises a bearing arranged in the through hole and a retaining ring arranged at the rear end of the bearing, and the retaining ring is arranged in the retaining ring installation groove.
In the embodiment of the invention, the material of the rear cover of the motor is low-carbon steel.
In an embodiment of the invention, the motor body further comprises a motor shaft with one end penetrating out of the motor rear cover, and the brake motor further comprises a brake disc assembly connected with the motor shaft through a spline.
In an embodiment of the present invention, the brake disc assembly includes a friction frame and a plurality of friction plates respectively disposed at both sides of the friction frame.
In an embodiment of the present invention, the friction frame includes a cylindrical portion connected to the spline and a third annular portion provided outside the cylindrical portion, the plurality of friction plates are respectively provided on both sides of the third annular portion, and a cross-sectional thickness of the cylindrical portion is at least 2 times a cross-sectional thickness of the third annular portion.
The invention provides engineering mechanical equipment, which comprises the brake motor.
Through above-mentioned technical scheme, brake motor is including moving iron core and motor body, and motor body sets up and is moving the front side of iron core and including the motor back cover as quiet iron core, has realized the integrated design of lid and quiet iron core behind the motor, still has the reduction part quantity, compact structure, and axial length is short, and whole is small, and occupation space is few and application scope is wider advantage.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 is a schematic structural diagram of a brake motor in an embodiment of the present invention.
Description of the reference numerals
1. Movable iron core 2 motor body
201. First ring part of lid 2011 behind motor
2012. Second circular part 202 bearing
203. Retaining ring 204 motor shaft
3. Coil assembly 4 brake spring
5. Spline 6 brake disc assembly
601. Friction frame 602 friction plate
603. Third circular part of cylindrical part 604
7. Mounting screw for fixing dual disk 8
9. Fan 10 adjusting sleeve
11. Manual brake releasing screw
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are given by way of illustration and explanation only, not limitation.
The servo motor and the brake are mostly of a split structure when in use at present, the structure enables the servo motor and the brake to be separately installed, the whole volume and the occupied space of the assembly bodies of the servo motor and the brake are increased, the assembly steps and the whole installation difficulty are increased, the manufacturing cost is increased, and the manufacturing efficiency is reduced; in addition, the split design also requires that the braking force be transmitted to the servo motor through an external transmission mechanism, resulting in the damping of the braking force and affecting the braking stability.
In order to solve the above problem, an embodiment of the present invention provides a novel brake motor, as shown in fig. 1, the brake motor includes:
a movable iron core 1;
and a motor body 2 disposed in front of the movable core 1 and including a motor back cover 201 as a stationary core.
Specifically, the motor body 2 is configured to convert electric energy into kinetic energy and includes an outer housing, a motor shaft 204, a motor front cover and a motor rear cover 201, the motor front cover is disposed at a front end of the outer housing, the motor rear cover 201 is disposed at a rear end of the outer housing, one end of the motor shaft 204 (the end is a driving end of the brake motor) extends from the motor front cover so that the brake motor is connected with other components and transmits the kinetic energy, and the other end of the motor shaft 204 extends from the motor rear cover 201; the brake motor further comprises a brake mechanism, the movable iron core 1 belongs to a part of the brake mechanism, specifically, the brake mechanism is sleeved on the motor shaft 204 and located at the rear side of the motor rear cover 201, and is used for braking the motor body 2 (namely, stopping rotation of the motor shaft 204), the movable iron core 1 is located at the front end of the brake motor, the motor rear cover 201 in the embodiment can be used as a static iron core to interact with the movable iron core 1 and generate electromagnetic acting force, namely, the motor rear cover 201 not only has a sealing effect on the motor body 2, but also has the same function as the static iron core in a common brake, so that the integrated design of the motor rear cover 201 and the static iron core is realized, and compared with the combination of two independent components of the motor and the brake in the prior art, the brake motor in the embodiment further has the advantages of reducing the number of the components on the basis of realizing respective functions of the motor and the brake motor, compact structure, short axial length, small overall volume, small occupied space and wider application range.
In one embodiment of the present invention, the brake motor further includes a coil assembly 3, and a groove for mounting the coil assembly 3 is formed on the motor rear cover 201. Specifically, the coil assembly 3 also belongs to a part of the braking mechanism, the opening direction of the groove in this embodiment faces the movable iron core 1, and the shape and size of the groove are matched with those of the coil assembly 3, so that the coil assembly 3 is conveniently arranged in the motor rear cover 201, which is beneficial to further reducing the axial length of the braking motor; in addition, in the present embodiment, the shape of the coil assembly 3 is not limited, the shape of the coil assembly 3 may be a circular ring or an elliptical ring, and the number of the coil assemblies 3 is also not limited, that is, the number of the coil assemblies 3 may be single or multiple; further, the shape of the coil assembly 3 in this embodiment is a full circular ring shape, and the number is one, so the shape of the groove in this embodiment is also a full circular ring shape.
In an embodiment of the present invention, the brake motor further includes a brake spring 4, and a brake spring mounting hole is formed on the motor rear cover 201. Specifically, the brake spring 4 also belongs to a part of the brake mechanism, a brake spring mounting hole is arranged at the radial outer side of the groove, the brake spring 4 is arranged in the brake spring mounting hole, one end of the brake spring 4 abuts against the bottom wall of the brake spring mounting hole, and the other end of the brake spring 4 abuts against the movable iron core 1 and is used for pushing the movable iron core 1 to move towards the direction away from the motor back cover 201.
In an embodiment of the present invention, the motor back cover 201 includes a first annular portion 2011 and a second annular portion 2012 disposed outside the first annular portion 2011, the groove is located on the first annular portion 2011, the brake spring mounting hole is located on the second annular portion 2012, and a cross-sectional thickness of the first annular portion 2011 is greater than a cross-sectional thickness of the second annular portion 2012. Specifically, in this embodiment, the depth of the groove is greater than the depth of the brake spring mounting hole, so in order to reserve sufficient setting space for the groove and the brake spring mounting hole, respectively, the cross-sectional thickness of the first annular portion 2011 needs to be greater than the cross-sectional thickness of the second annular portion 2012; in addition, above-mentioned this kind of design can also guarantee to be equipped with notched first ring portion 2011 and the second ring portion 2012 who is equipped with the brake spring mounting hole all has sufficient structural strength, has increased the installation space of the inside other spare parts of motor body 2, has reduced the waste of preparation material.
In an embodiment of the present invention, the first annular portion 2011 is provided with a through hole, a circumferential wall of the through hole is provided with a retaining ring installation groove, the motor body 2 further includes a bearing 202 disposed in the through hole and a retaining ring 203 disposed at a rear end of the bearing 202, and the retaining ring 203 is disposed in the retaining ring installation groove. Specifically, the through hole is located at the center of the first annular part 2011 and is used for allowing the end of the motor shaft 204 to pass through, the inner ring of the bearing 202 is sleeved on the motor shaft 204, the outer circumferential wall of the outer ring of the bearing 202 is tightly attached to the inner circumferential wall of the through hole, when the motor shaft 204 rotates, the inner ring of the bearing 202 rotates along with the through hole, and the outer ring of the bearing 202 is static; further, an annular retainer ring mounting groove is formed in the inner peripheral wall of the through hole, the retainer ring 203 is disposed in the retainer ring mounting groove and protrudes from the inner peripheral wall of the through hole, the front end of the bearing 202 abuts against a shoulder of the motor shaft 204, and the rear end of the bearing 202 abuts against a side end surface of the retainer ring 203, so that the bearing 202 is prevented from moving freely in the axial direction of the motor shaft 204.
In an embodiment of the present invention, the material of the motor back cover 201 is low carbon steel, and further, in this embodiment, the material of the motor back cover 201 is preferably 20 # steel, which has high strength, so that the motor back cover 201 made of the material has sufficient support performance, which can improve the durability of the brake motor.
In one embodiment of the present invention, the motor body 2 further includes a motor shaft 204 having one end protruding out of the motor back cover 201, and the brake motor further includes a brake disc assembly 6 connected to the motor shaft 204 through a spline 5. Specifically, the brake disc assembly 6 also belongs to a part of the brake mechanism, the brake mechanism further comprises a fixed dual disc 7 and a mounting screw 8, the brake disc assembly 6 and the fixed dual disc 7 are both sleeved on the motor shaft 204, the brake disc assembly 6 is located between the movable iron core 1 and the fixed dual disc 7, the radial width of the brake disc assembly 6 is smaller than the radial widths of the movable iron core 1 and the fixed dual disc 7, one end of the mounting screw 8 is clamped on the side wall of the fixed dual disc 7, and the other end of the mounting screw 8 sequentially penetrates through the fixed dual disc 7, the movable iron core 1 and is fixed with the motor rear cover 201; the brake disc assembly 6 is fixed on the motor shaft 204 through the spline 5, if the brake disc assembly 6 is not clamped by the driven iron core 1 and the fixed dual disc 7, the brake disc assembly 6 rotates along with the motor shaft 204 when the motor shaft 204 rotates; if the brake disc assembly 6 is clamped by the passive core 1 and the fixed counter disc 7, the brake disc assembly 6 cannot rotate any more, and the motor shaft 204 connected to the brake disc assembly 6 also stops rotating.
In one embodiment of the present invention, the brake disc assembly 6 includes a friction frame 601 and a plurality of friction plates 602 respectively disposed at both sides of the friction frame 601. Specifically, the friction frame 601 is disposed between the movable iron core 1 and the fixed dual disk 7 and connected to the motor shaft 204 through the spline 5 (the spline 5 is an external spline 5, and correspondingly, the friction frame 601 is formed with an internal spline 5 matching with the external spline 5), in this embodiment, the brake disk assembly 6 includes a first friction plate and a second friction plate, the first friction plate is disposed on a side end face of the friction frame 601 facing the movable iron core 1 and is used for increasing the friction force of the brake disk assembly 6 to the movable iron core 1; the second friction plate is arranged on the side end face, facing the fixed dual disk 7, of the friction framework 601 and is used for increasing the friction force of the brake disk assembly 6 on the fixed dual disk 7; the movable iron core 1 and the fixed dual disk 7 respectively generate clamping action on the brake disk assembly 6 through friction force formed between the first friction plate and the second friction plate.
In one embodiment of the present invention, the friction frame 601 includes a cylindrical portion 603 connected to the spline 5 and a third annular portion 604 disposed around the outside of the cylindrical portion 603, a plurality of friction plates 602 are respectively disposed on both sides of the third annular portion 604, and the sectional thickness of the cylindrical portion 603 is at least 2 times the sectional thickness of the third annular portion 604. Specifically, in the present embodiment, the friction frame 601 is made of aluminum, and on the basis of the selected material, in order to ensure that the spline 5 has sufficient strength and that the friction frame 601 and the spline 5 are sufficiently engaged with each other, that is, in order to have a sufficient engagement length between the friction frame 601 and the spline 5, the cross-sectional thickness of the cylindrical portion 603 needs to be at least 2 times the cross-sectional thickness of the third annular portion 604. Further, if the friction frame 601 in the present embodiment is made of another material (e.g., steel) having a higher strength, the cross-sectional thickness of the cylindrical portion 603 can be reduced by that amount.
In one embodiment of the present invention, the brake motor further includes a fan 9 disposed on the motor shaft 204 and behind the fixed dual disk 7, wherein the fan 9 is used for dissipating heat of the brake motor.
In an embodiment of the invention, the brake motor further comprises an adjusting sleeve 10, one end of the adjusting sleeve 10 abuts against the fixed dual disk 7, and the other end of the adjusting sleeve 10 penetrates through the movable iron core 1 and is in threaded connection with the motor rear cover 201 to adjust the distance between the fixed dual disk 7 and the motor rear cover 201, so that the shaft of the movable iron core 1 and the brake disk assembly 6 have a proper axial movement range, and the situation that the driving force of the brake spring 4 on the movable iron core 1 is insufficient due to the overlarge distance between the fixed dual disk 7 and the motor rear cover 201, and the braking force on the brake disk assembly 6 is further influenced is avoided.
In one embodiment of the present invention, the brake motor further comprises a manual brake releasing screw 11, one end of the manual brake releasing screw 11 is abutted against the movable iron core 1, and the other end is connected with the nut through the fixed dual disk 7 for manually cancelling the brake function of the brake motor in the case that the coil assembly 3 is not powered.
The working principle of the brake motor in the embodiment is as follows:
when the coil assembly 3 is powered off, the brake spring 4 releases to push and press the movable iron core 1, the movable iron core 1 and the fixed dual disc 7 clamp the brake disc assembly 6 to form friction force, the brake disc assembly 6 is connected with the motor shaft 204 through the spline 5 to play a role of braking the motor shaft 204, and then the brake motor stops rotating; when the coil assembly 3 is energized, a magnetic loop is formed among the motor back cover 201, the movable iron core 1 and the air gap between the motor back cover 201 and the movable iron core 1, and an electromagnetic acting force is generated, the electromagnetic acting force overcomes the elastic force of the brake spring 4 to enable the motor back cover 201 to attract the movable iron core 1, and at the moment, the brake disc assembly 6 rotates along with the rotation of the motor shaft 204 without being clamped.
In another embodiment of the invention, a construction machinery device, such as a tower crane or an elevator, is provided, and the construction machinery device comprises the brake motor.
The invention provides a brake motor and engineering mechanical equipment, wherein the brake motor comprises a movable iron core and a motor body, the motor body is arranged on the front side of the movable iron core and comprises a motor rear cover serving as a static iron core, the integrated design of the motor rear cover and the static iron core is realized, and the brake motor also has the advantages of reduced component number, compact structure, short axial length, small overall size, small occupied space and wider application range.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the specific features in any suitable way, and the invention will not be further described in relation to the various possible combinations in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention.
Claims (10)
1. A brake motor, comprising:
a movable iron core (1);
and the motor body (2) is arranged on the front side of the movable iron core (1) and comprises a motor rear cover (201) serving as a static iron core.
2. The brake motor according to claim 1, characterized in that the brake motor further comprises a coil assembly (3), and a groove for mounting the coil assembly (3) is formed on the motor rear cover (201).
3. The brake motor according to claim 2, further comprising a brake spring (4), wherein a brake spring mounting hole is formed on the motor rear cover (201).
4. The brake motor according to claim 3, wherein the motor rear cover (201) comprises a first circular portion (2011) and a second circular portion (2012) arranged outside the first circular portion (2011), the groove is located on the first circular portion (2011), the brake spring mounting hole is located on the second circular portion (2012), and the cross-sectional thickness of the first circular portion (2011) is greater than the cross-sectional thickness of the second circular portion (2012).
5. The brake motor according to claim 4, wherein a through hole is provided in the first circular portion (2011), a retaining ring installation groove is provided in a peripheral wall of the through hole, the motor body (2) further comprises a bearing (202) disposed in the through hole, and a retaining ring (203) disposed at a rear end of the bearing (202), and the retaining ring (203) is disposed in the retaining ring installation groove.
6. The brake motor according to any one of claims 1 to 5, wherein the motor rear cover (201) is made of mild steel.
7. The brake motor according to claim 1, wherein the motor body (2) further comprises a motor shaft (204) with one end penetrating out of the motor rear cover (201), and the brake motor further comprises a brake disc assembly (6) connected with the motor shaft (204) through a spline (5).
8. A brake motor according to claim 7, characterized in that the brake disc assembly (6) comprises a friction frame (601) and a plurality of friction discs (602) arranged on either side of the friction frame (601).
9. The brake motor according to claim 8, wherein the friction frame (601) includes a cylindrical portion (603) connected to the spline (5) and a third annular portion (604) provided outside the cylindrical portion (603), a plurality of the friction plates (602) are respectively provided on both sides of the third annular portion (604), and a cross-sectional thickness of the cylindrical portion (603) is at least 2 times a cross-sectional thickness of the third annular portion (604).
10. A work machine, characterized in that it comprises a brake motor according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210399230.4A CN115149714A (en) | 2022-04-15 | 2022-04-15 | Brake motor and engineering mechanical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210399230.4A CN115149714A (en) | 2022-04-15 | 2022-04-15 | Brake motor and engineering mechanical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115149714A true CN115149714A (en) | 2022-10-04 |
Family
ID=83406196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210399230.4A Pending CN115149714A (en) | 2022-04-15 | 2022-04-15 | Brake motor and engineering mechanical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115149714A (en) |
-
2022
- 2022-04-15 CN CN202210399230.4A patent/CN115149714A/en active Pending
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