Carbon brush holder fixing device

Abstract

The utility model discloses a carbon brush holder fixing device which comprises a carbon brush holder base, a carbon brush holder is fixedly arranged on the carbon brush holder base, a fixing assembly is arranged in the carbon brush holder, a rotating assembly is arranged on one side of the carbon brush holder, and the rotating assembly is fixed above the carbon brush holder base. By adopting the carbon brush holder fixing device, the installation of the carbon brush holder is faster and firmer, and the subsequent replacement of the carbon brush is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to carbon brush holder fixing technical field especially is related to a carbon brush holder fixing device. BACKGROUND

[0002] The function of carbon brush holder is to add pressure to the carbon brush that slides contact with commutator or surface of current collector through spring, makes it stably conduct current between fixed body and rotating body, for motor, carbon brush holder and carbon brush are very important parts, when installing carbon brush holder, usually need to use carbon brush holder fixing structure to fix carbon brush holder, so that carbon brush holder does not appear the situation of shaking in the process of using.

[0003] The motor has high fixing requirement to carbon brush holder, but the existing carbon brush holder fixing mode is more complex, cannot conveniently and quickly install and fix carbon brush holder base. UTILITY MODEL CONTENTS

[0004] The utility model discloses a carbon brush holder fixing device, not only make the installation of carbon brush holder more fast, firm, and the subsequent carbon brush is convenient to replace.

[0005] In order to realize the above-mentioned purpose, the utility model provides a carbon brush holder fixing device, including carbon brush holder base, the carbon brush holder base is fixed with carbon brush holder, the inside of carbon brush holder is equipped with fixed component, one side of carbon brush holder is equipped with rotating component, and the rotating component is fixed on the top of carbon brush holder base.

[0006] Preferably, the fixed component includes a rotating plate, one end of the rotating plate is connected to a rotating shaft, the rotating shaft is fixed on the inner wall of the carbon brush holder, the other end of the rotating plate is connected to a first spring, and the other end of the first spring is fixed on the inner wall of the carbon brush holder.

[0007] Preferably, the number of fixed components is two, and the two fixed components are symmetrically arranged inside the carbon brush holder.

[0008] Preferably, the rotating component includes a rotating base, the rotating base is fixed above the carbon brush holder base, and a rotating block is clamped on the rotating base through a clamping ring.

[0009] Preferably, the rotating base is provided with a concave clamping block, the inner side of the concave clamping block is provided with a circular guide rail, and the outer side of the rotating block is fixed with a spiral spring.

[0010] Preferably, two sides of the rotating block are symmetrically provided with pressing blocks, the pressing blocks are internally provided with sliding plates, the other side of the sliding plate is connected with a U-shaped clamping convex, and the second spring is arranged between the sliding plate and the outer wall of the rotating block.

[0011] Preferably, the number of the U-shaped clamping convexes is two, the rotating base is internally provided with a sliding sleeve matched with the U-shaped clamping convexes, the two sides of the sliding sleeve are provided with rollers, and the rollers are clamped in the circular ring guide rail.

[0012] Preferably, the middle part of the carbon brush holder base is provided with a first through hole, and the two sides of the first through hole are symmetrically provided with second through holes.

[0013] Preferably, the carbon brush holder base is installed above an end cover, and the end cover is provided with a positioning block at a position corresponding to the second through hole.

[0014] Preferably, the two sides of the carbon brush holder are connected with mounting plates, the mounting plates are provided with third through holes, and the carbon brush holder base is provided with fourth through holes at positions corresponding to the third through holes.

[0015] Therefore, the carbon brush holder fixing device has the advantages that the installation of the carbon brush holder is faster and more firm, and the subsequent replacement of the carbon brush is facilitated.

[0016] The technical scheme of the present application will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of an embodiment of the carbon brush holder fixing device of the present application;

[0018] Figure 2 is a carbon brush holder sectional view of an embodiment of the carbon brush holder fixing device of the present application;

[0019] Figure 3 is a front sectional view of a rotating block of an embodiment of the carbon brush holder fixing device of the present application;

[0020] Figure 4 is a rotating base sectional view of an embodiment of the carbon brush holder fixing device of the present application.

[0021] REFERENCE SIGNS

[0022] 1. Carbon brush holder base; 2. Carbon brush holder; 3. Mounting plate; 4. Third through hole; 5. End cap; 6. First through hole; 7. Positioning block; 8. Second through hole; 9. Rotating block; 10. Scroll spring; 11. Pressure block; 12. Rotating shaft; 13. First spring; 14. Second spring; 15. Sliding plate; 16. U-shaped locking protrusion; 17. Concave locking block; 18. Snap ring; 19. Sliding sleeve; 20. Roller; 21. Rotating base; 22. Circular guide rail; 23. Rotating plate. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] Example 1

[0026] like Figures 1-4 As shown, this utility model provides a carbon brush holder fixing device, including a carbon brush holder base 1. A first through hole 6 is provided in the middle of the carbon brush holder base 1 to facilitate heat dissipation when the carbon brush contacts the commutator. Second through holes 8 are symmetrically provided on both sides of the first through hole 6. The carbon brush holder base 1 is mounted above an end cover 5. A positioning block 7 is provided on the end cover 5 at a position corresponding to the second through hole 8. When installing the carbon brush holder base 1, the positioning block 7 on the end cover 5 is precisely engaged at the second through hole 8, enabling rapid positioning of the carbon brush holder base 1.

[0027] A carbon brush holder 2 is fixedly mounted on the carbon brush holder base 1. Mounting plates 3 are connected to both sides of the carbon brush holder 2. The mounting plates 3 have a third through hole 4, and the carbon brush holder base 1 has a fourth through hole at a corresponding position to the third through hole 4. The fourth through hole is located directly below the third through hole 4, and the two are concentric with the same inner diameter. By screwing bolts into the third through hole 4, the carbon brush holder 3 and the carbon brush holder base 2 can be fixed together to the end cap 5. In this case, the carbon brush holder base 1 can act as a gasket during fixing, making the fixing mechanism more stable.

[0028] The inside of the carbon brush holder 2 is provided with two fixing assemblies which are symmetrically arranged inside the carbon brush holder 2. The space between the two fixing assemblies is used to fix the carbon brush. The fixing assembly comprises a rotating plate 23, one end of the rotating plate 23 is connected to the rotating shaft 12 which is fixed to the inner wall of the carbon brush holder 2, and the other end of the rotating plate 23 is connected to the first spring 13, the other end of the first spring 13 is fixed to the inner wall of the carbon brush holder 2.

[0029] After the carbon brush is put into the carbon brush holder 2, the more the carbon brush is put into, the larger the contact area between the carbon brush and the fixing assembly, and the rotating plate 23 can be tightly attached to the two sides of the carbon brush through the elastic force of the first spring 13, so as to fix the carbon brush and avoid unnecessary wear of the carbon brush when contacting the commutator.

[0030] One side of the carbon brush holder 2 is provided with a rotating assembly which is fixed above the carbon brush holder base 1. The rotating assembly comprises a rotating base 21 which is fixed above the carbon brush holder base 1, and the rotating base 1 is provided with a concave clamping block 17 inside, and the inner side of the concave clamping block 17 is provided with a circular guide rail 22.

[0031] The rotating block 9 is clamped on the rotating base 21 through the clamping ring 18, so that the rotating block 9 can rotate without being separated from the rotating base 21, and the outer side of the rotating block 9 is fixed with the volute spring 10 which is used to fix the wiring end of the carbon brush and further fix the carbon brush. The two sides of the rotating block 9 are symmetrically provided with the pressing block 11, the inside of the pressing block 11 is provided with the sliding plate 15, and the second spring 14 is arranged between the sliding plate 15 and the outer wall of the rotating block 9. The other side of the sliding plate 15 is connected to the U-shaped clamping convex 16 which is matched with the concave clamping block 17, and under the intervention of external force, the U-shaped clamping convex 16 can be clamped in the concave clamping block 17 through the elastic force of the second spring 14, so as to fix the rotating block 9 and make the volute spring 10 play a fixing role.

[0032] By pressing the pressing block 11, the U-shaped clamping convex 16 can slide out of the concave clamping block 17, so that the rotation of the rotating block 9 can be facilitated, the rotation direction can be controlled to weaken the elastic force of the volute spring 10, and the carbon brush fixed by the volute spring 10 can be conveniently replaced. After a period of use, if the elastic force of the volute spring 10 decreases, the rotation direction of the rotating block 9 can be controlled to increase the elastic force of the volute spring 10, so as to prolong the service life of the volute spring 10.

[0033] The number of U-shaped clamping convexes 16 is two, and the rotating base 21 is provided with a sliding sleeve 19 matched with the U-shaped clamping convex 16, so that the left and right sliding of the U-shaped clamping convex 16 can be facilitated. The two sides of the sliding sleeve 19 are provided with the rollers 20 which are clamped in the circular guide rail 22, and the rotation of the rotating block 9 can be facilitated through the circular guide rail 22.

[0034] In use, by screwing in the bolt in the third through hole 4, the fixing between the carbon brush holder 2, the carbon brush holder base 1 and the end cover 5 can be quickly realized. If the carbon brush needs to be replaced, the pressing block 11 can be pressed, so that the U-shaped clamping convex 16 slides out of the concave clamping block 17, the rotating direction of the rotating block 9 is controlled, the rotating block is rotated by a small force for 90 degrees, because there is no clamping force of the concave clamping block 17 at this time, the rotating block 9 will rotate under the elastic force of the spiral spring 10, and a small force is used to prevent the rotating block 9 from rotating too much, so as to avoid that the spiral spring 10 loses the elastic force and increases the time for replacing the carbon brush.

[0035] Therefore, the elastic force of the spiral spring 10 is weakened, the pressing block 11 is loosened, and the U-shaped clamping convex 16 can be clamped into another different concave clamping block 17. At this time, the old carbon brush can be easily taken out, and after the new carbon brush is placed in the accurate position, the pressing block 11 is pressed, and the rotating block 9 is reversely rotated for 90 degrees, so that the replacement of the carbon brush is completed.

[0036] Therefore, the carbon brush holder fixing device has the advantages that the installation of the carbon brush holder is faster and more firm, and the replacement of the subsequent carbon brush is convenient.

[0037] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model and not to limit them, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can still be modified or replaced, and these modifications or replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the utility model.

Claims

1. A carbon brush holder fixing device, characterized in that: The device includes a carbon brush holder base, on which a carbon brush holder is fixedly mounted. The carbon brush holder has a fixing component inside and a rotating component on one side, which is fixed above the carbon brush holder base. The fixing component includes a rotating plate, one end of which is connected to a rotating shaft fixed to the inner wall of the carbon brush holder. The other end of the rotating plate is connected to a first spring, the other end of which is fixed to the inner wall of the carbon brush holder.

2. The carbon brush holder fixing device according to claim 1, characterized in that: The number of fixing components is two, and the two fixing components are symmetrically arranged inside the carbon brush holder.

3. The carbon brush holder fixing device according to claim 1, characterized in that: The rotating assembly includes a rotating base, which is fixed above the carbon brush holder base, and a rotating block is engaged with the rotating base by a retaining ring.

4. The carbon brush holder fixing device according to claim 3, characterized in that: The rotating base has a concave locking block inside, and a circular guide rail is provided on the inner side of the concave locking block. A spiral spring is fixed on the outer side of the rotating block.

5. A carbon brush holder fixing device according to claim 4, characterized in that: The rotating block has symmetrical pressure blocks on both sides, and a sliding plate is provided inside the pressure block. A U-shaped locking protrusion is connected to the other side of the sliding plate, and a second spring is provided between the sliding plate and the outer wall of the rotating block.

6. A carbon brush holder fixing device according to claim 5, characterized in that: The number of U-shaped protrusions is two, and the rotating base is provided with a sliding sleeve that matches the U-shaped protrusions. Rollers are provided on both sides of the sliding sleeve, and the rollers are locked inside the circular guide rail.

7. A carbon brush holder fixing device according to claim 1, characterized in that: The carbon brush holder base has a first through hole in the middle, and second through holes are symmetrically arranged on both sides of the first through hole.

8. A carbon brush holder fixing device according to claim 7, characterized in that: The carbon brush holder base is mounted on top of the end cap, and a positioning block is provided on the end cap at the position corresponding to the second through hole.

9. A carbon brush holder fixing device according to claim 1, characterized in that: The carbon brush holder is connected to mounting plates on both sides. The mounting plates are provided with a third through hole, and the carbon brush holder base is provided with a fourth through hole at the corresponding position of the third through hole.

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