A quick-insertion and quick-change mechanism for a brush plate

Abstract

The utility model relates to a brush disc quick-insertion and quick-change mechanism, belonging to the field of aerial work vehicles. The utility model includes a support structure, and its structural features are: it also includes a transmission assembly, a plug-in locking assembly and a brush disc assembly, the transmission assembly is installed on the support structure, the brush disc assembly is installed on the transmission assembly through the plug-in locking assembly, the transmission assembly includes a transmission shaft, the brush disc assembly includes a brush shaft and a brush disc, the brush disc is arranged on the brush shaft, the brush shaft and the transmission shaft are connected through the plug-in locking assembly, the plug-in locking assembly includes a support spring, a steel ball and a locking sleeve, the support spring and the locking sleeve are both sleeved outside the transmission shaft, and the support spring is in contact with the locking sleeve, the steel ball is installed on the transmission shaft, the locking sleeve is in contact with the steel ball, the steel ball is clamped with the brush shaft, and the transmission shaft is sleeved with a wire retaining ring for preventing the locking sleeve from falling off.

Description

Technical Field

[0001] The utility model relates to a quick-insertion and quick-change mechanism for a brush plate, belonging to the field of aerial work vehicles. Background Art

[0002] The brush disc used in the cleaning mechanism of the insulator cleaning aerial work vehicle is frequently plugged in and out for maintenance or replacement depending on the use occasion. Therefore, a mechanism that can be quickly and flexibly plugged in and out, reliably locked in installation, and effectively transmit motion after installation must be considered during the design. After the brush disc has been used for a period of time, the bristles will fall to one side, and the mechanism must be able to achieve rapid maintenance. The prior art does not have a similar design that can achieve the above functions. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a brush plate quick-insertion and quick-change mechanism with a reasonable structural design.

[0004] The technical solution adopted by the utility model to solve the above-mentioned problem is: the brush disc quick-insertion and quick-change mechanism includes a supporting structure, and its structural characteristics are: it also includes a transmission assembly, a plug-in locking assembly and a brush disc assembly, the transmission assembly is installed on the supporting structure, and the brush disc assembly is installed on the transmission assembly through the plug-in locking assembly.

[0005] Furthermore, the transmission assembly includes a transmission shaft, the brush disc assembly includes a brush shaft and a brush disc, the brush disc is arranged on the brush shaft, and the brush shaft is connected to the transmission shaft via a plug-in locking assembly.

[0006] Furthermore, the plug-in locking assembly includes a supporting spring, a steel ball and a locking sleeve, the supporting spring and the locking sleeve are both mounted outside the transmission shaft, and the supporting spring abuts against the locking sleeve, the steel ball is installed on the transmission shaft, the locking sleeve contacts the steel ball, and the steel ball is clamped with the brush shaft.

[0007] Furthermore, a wire retaining ring is sleeved on the outer sleeve of the transmission shaft to prevent the locking sleeve from falling off.

[0008] Furthermore, the transmission shaft is provided with an insertion cavity, the brush shaft is provided with an insertion section, and the insertion section is inserted into the insertion cavity.

[0009] Furthermore, a steel ball hole is provided on the transmission shaft, a steel ball groove is provided on the brush shaft, the steel ball is located in the steel ball hole, and the steel ball cooperates with the steel ball groove.

[0010] Furthermore, the locking sleeve is provided with a spring cavity, a locking section and an unlocking section, the supporting spring abuts against the spring cavity, and the locking section or the unlocking section contacts with the steel ball.

[0011] Furthermore, the supporting structure comprises an upper structural plate, a lower structural plate and connecting pins, and the upper structural plate and the lower structural plate are assembled by the connecting pins.

[0012] Furthermore, the transmission assembly also includes an upper end cover, a deep groove ball bearing, a retaining spring and a lower end cover. The upper end cover and the lower end cover are respectively mounted on the upper structural plate and the lower structural plate through fasteners. A deep groove ball bearing is installed in each of the upper end cover and the lower end cover through a retaining spring, and the transmission shaft is mounted on the deep groove ball bearing.

[0013] Furthermore, the brush disc assembly also includes an end cover, the brush disc is mounted on the brush shaft via the end cover, and the end cover is connected to the brush disc via a fastener.

[0014] Compared with the prior art, the utility model has the following advantages: the brush disc assembly and the transmission assembly can be locked and unlocked by plugging and pulling out the locking assembly, so as to realize the rapid replacement of the brush disc assembly; when replacing the brush disc assembly, the locking sleeve is pulled so that the steel ball is separated from the locking section and falls into the unlocking section, at which time the brush disc assembly is unlocked and the brush disc assembly can be replaced; after replacing the brush disc assembly, the insertion section is inserted into the insertion cavity, at which time the locking sleeve can be rebounded under the action of the supporting spring, so that the steel ball contacts the locking section and bounces into the steel ball groove, at which time the brush disc assembly can be locked. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the working state structure of the quick-insertion and quick-change mechanism of the brush plate of the embodiment of the utility model.

[0016] Figure 2 It is a schematic diagram of the structure of the brush plate quick-insertion and quick-change mechanism in the replacement state of the embodiment of the utility model.

[0017] Figure 3 It is a structural schematic diagram of the brush shaft of an embodiment of the utility model.

[0018] Figure 4 It is a schematic structural diagram of a transmission shaft according to an embodiment of the utility model.

[0019] Figure 5 yes Figure 4 Schematic diagram of the AA section structure.

[0020] Figure 6 It is a schematic diagram of the locking sleeve structure of an embodiment of the utility model.

[0021] Figure 7 It is a structural schematic diagram of a brush disc assembly according to an embodiment of the utility model.

[0022] Figure 8It is a schematic diagram of the locking state structure of the plug-in locking assembly of an embodiment of the utility model.

[0023] Fig. 9 It is a schematic diagram of the structure of the plug-in locking assembly in the unlocked state of an embodiment of the utility model.

[0024] In the figure: support structure I, transmission assembly II, plug-in locking assembly III, brush plate assembly IV,

[0025] Upper structural plate 1, lower structural plate 2, connecting pin 3, upper end cover 4, fastener 5, deep groove ball bearing 6, retaining ring 7, transmission shaft 8, lower end cover 9, support spring 10, steel ball 11, locking sleeve 12, wire retaining ring 13, brush shaft 14, end cover 15, brush disc 16, steel ball hole 17, steel ball groove 18, insertion cavity 19, insertion section 20, spring cavity 21, locking section 22, unlocking section 23. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0027] Example

[0028] See also Figures 1 to 9 As shown, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, if there are references to terms such as "upper", "lower", "left", "right", "middle" and "one" in this specification, they are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship, without substantially changing the technical content, should also be regarded as the scope of the implementation of the utility model.

[0029] The brush disc quick-insertion and quick-change mechanism in this embodiment includes a supporting structure I, a transmission component II, a plug-in locking component III and a brush disc component IV. The transmission component II is installed on the supporting structure I, and the brush disc component IV is installed on the transmission component II through the plug-in locking component III.

[0030] The supporting structure I includes an upper structural plate 1, a lower structural plate 2 and a connecting pin 3. The upper structural plate 1 and the lower structural plate 2 are assembled through the connecting pin 3; the upper structural plate 1 and the lower structural plate 2 form a supporting structure I through the connecting pin 3.

[0031] The transmission assembly II includes an upper end cover 4, a deep groove ball bearing 6, a retaining ring 7, a transmission shaft 8 and a lower end cover 9. The upper end cover 4 and the lower end cover 9 are respectively mounted on the upper structure plate 1 and the lower structure plate 2 through fasteners 5. A deep groove ball bearing 6 is installed in each of the upper end cover 4 and the lower end cover 9 through a retaining ring 7, and the transmission shaft 8 is mounted on the deep groove ball bearing 6.

[0032] An insertion cavity 19 is provided on the transmission shaft 8, an insertion section 20 is provided on the brush shaft 14, the insertion section 20 is inserted into the insertion cavity 19, a steel ball hole 17 is provided on the transmission shaft 8, a steel ball groove 18 is provided on the brush shaft 14, the steel ball 11 is located in the steel ball hole 17, and the steel ball 11 cooperates with the steel ball groove 18.

[0033] The upper end cover 4 is fixed to the upper structure plate 1 by fasteners 5, and the lower end cover 9 is fixed to the lower structure plate 2 by fasteners 5. A deep groove ball bearing 6 is installed in each of the upper end cover 4 and the lower end cover 9. A retaining ring 7 is installed on the other side of the deep groove ball bearing 6 to prevent the deep groove ball bearing 6 from moving up and down. The transmission shaft 8 is installed in the upper and lower deep groove ball bearings 6. The inner ring of the deep groove ball bearing 6 is supported by two step surfaces processed on the transmission shaft 8 to prevent the transmission shaft 8 from moving up and down. The transmission shaft 8 only rotates in the deep groove ball bearing 6.

[0034] The plug-in locking assembly III includes a support spring 10, a steel ball 11 and a locking sleeve 12. The support spring 10 and the locking sleeve 12 are both mounted on the outside of the transmission shaft 8, and the support spring 10 is in contact with the locking sleeve 12. The steel ball 11 is installed on the transmission shaft 8, the locking sleeve 12 is in contact with the steel ball 11, and the steel ball 11 is clamped with the brush shaft 14. A wire retaining ring 13 is mounted on the outside of the transmission shaft 8 to prevent the locking sleeve 12 from falling off.

[0035] The locking sleeve 12 is provided with a spring cavity 21 , a locking section 22 and an unlocking section 23 . The support spring 10 abuts against the spring cavity 21 , and the locking section 22 or the unlocking section 23 contacts the steel ball 11 .

[0036] The locking sleeve 12 is installed at the lower end of the transmission shaft 8, and a support spring 10 is installed between the locking sleeve 12 and the deep groove ball bearing 6. Five steel balls 11 are evenly placed in the steel ball hole 17 at the lower end of the transmission shaft 8. Through reasonable processing, the steel balls 11 cannot escape from the steel ball holes 17 into the insertion cavity 19. A wire retaining ring 13 is installed in the retaining ring groove at the lower end of the transmission shaft 8. The wire retaining ring 13 prevents the locking sleeve 12 from escaping from the transmission shaft 8.

[0037] The brush disc assembly IV includes a brush shaft 14, an end cover 15 and a brush disc 16. The brush disc 16 is installed on the brush shaft 14 through the end cover 15. The end cover 15 and the brush disc 16 are connected by a fastener 5. The brush disc 16 is arranged on the brush shaft 14. The brush shaft 14 is connected to the drive shaft 8 through a plug-in locking assembly III.

[0038] When the brush disc assembly IV is to be installed, first push the locking sleeve 12 upward to the limit to compress the support spring 10. At this time, the upper end of the locking sleeve 12 presses against the inner ring of the deep groove ball bearing 6 at the lower end, and the steel ball 11 is separated from the locking section 22 and located in the unlocking section 23. Insert the insertion section 20 of the brush shaft 14 into the insertion cavity 19 of the transmission shaft 8. At this time, the steel ball 11 in the steel ball hole 17 of the transmission shaft 8 is aligned with the middle of the steel ball groove 18 of the brush shaft 14. Release the locking sleeve 12, and the locking sleeve 12 rebounds under the action of the support spring 10 and its own weight. , squeeze the five steel balls 11 into the steel ball groove 18 of the brush shaft 14, and firmly lock the steel balls 11 through the locking section 22 of the locking sleeve 12, and the end surface of the unlocking section 23 of the locking sleeve 12 presses against the wire retaining ring 13 to prevent the locking sleeve 12 from moving downward again; when removing the brush disc assembly IV, first push the locking sleeve 12 upward to the bottom, at this time the steel balls 11 are again located in the unlocking section 23 of the locking sleeve 12, and the brush disc assembly IV pushes the steel balls 11 out of the steel ball groove 18 of the brush shaft 14 by its own weight, completing the removal of the brush disc assembly IV.

[0039] When the brush plate quick-insert and quick-change mechanism is in normal working condition, the distance a between the locking sleeve 12 and the inner retaining ring of the lower deep groove ball bearing 6 meets the following conditions: within the up and down moving range of the locking sleeve 12, the steel ball 11 is only between the unlocking section 23 and the locking section 22 of the locking sleeve 12 and will not escape the protection range of the locking sleeve 12.

[0040] The insertion cavity 19 of the transmission shaft 8 is a hexagonal structure, and the insertion section 20 of the brush shaft 14 is a hexagonal structure for coordinated transmission. To ensure smooth plugging and unplugging, the insertion section 20 of the brush shaft 14 is processed into a design with an inclination of 1:10. The end size is slightly smaller, and the root size near the steel ball groove 18 is slightly larger. The clearance fit tolerance of the two hexahedrons near the root is set to 0.05mm~0.2mm, which ensures smooth plugging and unplugging, and ensures that the hexahedron transmission will not cause rotation stop and shaking due to excessive clearance.

[0041] The included angle of the two inclined surfaces of the steel ball groove 18 of the brush shaft 14 is designed to be ∠f=90°, and the groove width e of the steel ball groove 18 is consistent with the diameter of the steel ball 11, ensuring that the contact surface when the steel ball 11 is fully stuck is on the inclined surface of the steel ball groove 18, making the force on the steel ball groove 18 more stable.

[0042] The bottom of the steel ball hole 17 of the transmission shaft 8 is processed by a drill bit with a bottom angle of ∠g=90°. The processing depth of the steel ball hole 17 satisfies the steel ball 11 to be placed into the bottom of the steel ball hole 17. When the brush shaft 14 is not inserted, the diameter of the circle formed by the inner sides of the five steel balls 11 is Φh. When the brush shaft 14 is inserted, the five steel balls 11 contact the side of the steel ball groove 18. At this time, the diameter of the circle formed by the inner sides of the five steel balls 11 is Φb, wherein Φh is smaller than Φb to ensure that the steel ball 11 can reliably clamp the brush shaft 14.

[0043] After the steel balls 11 are clamped in the steel ball grooves 18 of the brush shaft 14, the diameter of the circle formed by the outer sides of the five steel balls 11 is Φc, and the diameter of the locking section 22 of the locking sleeve 12 is Φi, wherein Φc is slightly smaller than Φi to ensure smooth up and down sliding of the locking sleeve.

[0044] When the steel ball groove 18 of the brush shaft 14 pushes away the steel ball 11 , the diameter of the circle formed by the outer sides of the five steel balls 11 is Φd, and the diameter of the unlocking section 23 of the locking sleeve 12 is Φj, wherein Φd is smaller than Φj.

[0045] The upper and lower mounting holes of the brush plate 16 are arranged symmetrically, the end covers 15 at both ends of the brush plate 16 are designed in the same way, and the end covers 15 are connected to the brush shaft 14 in a hexagonal structure.

[0046] The support spring 10 is a compression spring with a spring wire diameter of 1.2 mm. Under the limit compression stroke, the operating force of the locking sleeve 12 is about 2N, which can ensure that the locking sleeve 12 locks the steel ball 11 reliably without making the hand operating force too large.

[0047] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is only an example of the structure of the utility model. All equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the utility model are included in the protection scope of the utility model patent. Technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.

Claims

1. A brush plate quick-insertion and quick-change mechanism, comprising a support structure (I), characterized in that: It also comprises a transmission component (II), a plug-in locking component (III) and a brush plate component (IV), wherein the transmission component (II) is mounted on the supporting structure (I), and the brush plate component (IV) is mounted on the transmission component (II) via the plug-in locking component (III).

2. The brush plate quick-insertion and quick-change mechanism according to claim 1 is characterized in that: The transmission assembly (II) comprises a transmission shaft (8), and the brush disc assembly (IV) comprises a brush shaft (14) and a brush disc (16). The brush disc (16) is arranged on the brush shaft (14), and the brush shaft (14) is connected to the transmission shaft (8) via a plug-in locking assembly (III).

3. The brush plate quick-insertion and quick-change mechanism according to claim 1 is characterized in that: The plug-in locking assembly (III) comprises a support spring (10), a steel ball (11) and a locking sleeve (12); the support spring (10) and the locking sleeve (12) are both sleeved outside the transmission shaft (8), and the support spring (10) is in contact with the locking sleeve (12); the steel ball (11) is mounted on the transmission shaft (8), the locking sleeve (12) is in contact with the steel ball (11), and the steel ball (11) is clamped with the brush shaft (14).

4. The brush plate quick-insertion and quick-change mechanism according to claim 3 is characterized in that: The transmission shaft (8) is sleeved with a steel wire retaining ring (13) for preventing the locking sleeve (12) from falling off.

5. The brush plate quick-insertion and quick-change mechanism according to claim 3 is characterized in that: An insertion cavity (19) is provided on the transmission shaft (8), an insertion section (20) is provided on the brush shaft (14), and the insertion section (20) is inserted into the insertion cavity (19).

6. The brush plate quick-insertion and quick-change mechanism according to claim 3 is characterized in that: The transmission shaft (8) is provided with a steel ball hole (17), the brush shaft (14) is provided with a steel ball groove (18), the steel ball (11) is located in the steel ball hole (17), and the steel ball (11) cooperates with the steel ball groove (18).

7. The brush plate quick-insertion and quick-change mechanism according to claim 3 is characterized in that: The locking sleeve (12) is provided with a spring cavity (21), a locking section (22) and an unlocking section (23); the support spring (10) abuts against the spring cavity (21), and the locking section (22) or the unlocking section (23) contacts the steel ball (11).

8. The brush plate quick-insertion and quick-change mechanism according to claim 1, characterized in that: The supporting structure (I) comprises an upper structural plate (1), a lower structural plate (2) and a connecting pin (3); the upper structural plate (1) and the lower structural plate (2) are assembled via the connecting pin (3).

9. The brush plate quick-insertion and quick-change mechanism according to claim 2, characterized in that: The transmission assembly (II) further comprises an upper end cover (4), a deep groove ball bearing (6), a retaining spring (7) and a lower end cover (9); the upper end cover (4) and the lower end cover (9) are respectively mounted on the upper structure plate (1) and the lower structure plate (2) via fasteners (5); a deep groove ball bearing (6) is respectively mounted in the upper end cover (4) and the lower end cover (9) via the retaining spring (7); and the transmission shaft (8) is mounted on the deep groove ball bearing (6).

10. The brush plate quick-insertion and quick-change mechanism according to claim 2, characterized in that: The brush disc assembly (IV) further comprises an end cover (15), the brush disc (16) is mounted on the brush shaft (14) via the end cover (15), and the end cover (15) and the brush disc (16) are connected via a fastener (5).

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