CN219013274U - Worm and gear transmission mechanism for paper shredder - Google Patents
Worm and gear transmission mechanism for paper shredder Download PDFInfo
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- CN219013274U CN219013274U CN202223172111.XU CN202223172111U CN219013274U CN 219013274 U CN219013274 U CN 219013274U CN 202223172111 U CN202223172111 U CN 202223172111U CN 219013274 U CN219013274 U CN 219013274U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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Abstract
The worm and gear transmission mechanism for the paper shredder comprises a mounting seat, wherein an input worm connected with a motor in a transmission way, a first transmission worm wheel and a second transmission worm wheel which respectively and independently drive a paper shredding roller to rotate, and a power transmission shaft for transmitting power are arranged on the mounting seat; the transmission worm wheel is arranged at one end of the rotating shaft body, which is close to the input worm, and is in transmission connection with the input worm; the transmission worm group comprises a first transmission worm and a second transmission worm which are arranged on the rotating shaft body, the first transmission worm and the second transmission worm are coaxially arranged with the rotating shaft body, the first transmission worm is connected with the first transmission worm gear in a transmission way, the second transmission worm is connected with the second transmission worm gear in a transmission way, and the spiral directions of the first transmission worm and the second transmission worm are opposite. The utility model has the advantage of reducing noise generated by transmission.
Description
Technical Field
The present disclosure relates to paper shredders, and particularly to a worm gear mechanism for a paper shredder.
Background
In order to prevent important documents from being compromised, companies need to destroy the documents, and paper shredders are usually adopted. Most paper shredders currently adopt a 4-level or 5-level cylindrical gear transmission mechanism, and a motor drives a plurality of cylindrical gears to drive paper shredding rolls to rotate. The 1-level cylindrical gear is made of plastic materials for reducing noise, but the temperature of the motor is high after loading, plastic teeth are easy to deform and the tooth shape is damaged, so that the electric control of most paper shredders is provided with the power-off protection for reducing noise due to the fact that the temperature of the motor is increased, and therefore the working time of the paper shredders is limited. The 2-5-level cylindrical gear of the paper shredder adopts a metal gear manufactured by a stamping or cold extrusion process, has high noise and pollutes the office environment.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides a worm and gear transmission mechanism for a paper shredder, which is used for improving the noise problem of the transmission mechanism in the paper shredder.
The utility model solves the technical problems by adopting the technical scheme that: the utility model provides a worm gear drive mechanism for kneader, includes the mount pad, be equipped with the input worm that is connected with motor drive on the mount pad, independently drive the first transmission worm wheel of shredded paper roll pivoted respectively and second transmission worm wheel, be used for transmitting the power transmission axle, the power transmission axle includes: the two ends of the rotating shaft body are provided with supporting bearings, and the rotating shaft body is rotationally connected to the mounting seat through the supporting bearings; the transmission worm wheel is arranged at one end of the rotating shaft body, which is close to the input worm, and is in transmission connection with the input worm; the transmission worm group comprises a first transmission worm and a second transmission worm which are arranged on the rotating shaft body, the first transmission worm and the second transmission worm are coaxially arranged with the rotating shaft body, the first transmission worm is connected with a first transmission worm wheel in a transmission manner, the second transmission worm is connected with a second transmission worm wheel in a transmission manner, and the spiral directions of the first transmission worm and the second transmission worm are opposite.
The motor drives the input worm to rotate, so that the transmission worm wheel drives the rotating shaft body to rotate, the first transmission worm wheel drives the first rotating worm wheel to rotate, the second transmission worm wheel drives the second rotating worm wheel to rotate, and the paper breaking roller is further enabled to rotate. The transmission of the input worm and the transmission worm wheel, the transmission of the first transmission worm and the first transmission worm wheel and the transmission of the second transmission worm and the second transmission worm wheel are all inclined planes and continuously slide, namely the transmission is quite, and the noise generated by the transmission is reduced; the transmission worm wheel is made of metal materials, so that the influence of temperature rise on the transmission worm wheel is reduced, and the working time of the paper shredder is prolonged.
Preferably, the mounting seat is provided with a mounting assembly, and the mounting assembly comprises a mounting plate arranged on the mounting seat and a mounting cover arranged on one side of the mounting plate away from the mounting seat; the mounting plate is provided with a containing groove, and the transmission worm wheel, the rotating shaft body, the first transmission worm, the second transmission worm, the first transmission worm wheel and the second transmission worm wheel are all located in the containing groove. In the installation process, the mounting plate is fixed on the mounting seat, and then the transmission worm wheel, the rotating shaft body, the first transmission worm, the second transmission worm, the first transmission worm wheel and the second transmission worm wheel are mounted in the accommodating groove, so that the positioning and the mounting of parts are facilitated.
Preferably, the mounting cover is closely attached to the mounting plate, and the accommodating groove is completely located between the mounting cover and the mounting plate. The transmission worm wheel, the rotating shaft body, the first transmission worm, the second transmission worm, the first transmission worm wheel and the second transmission worm wheel are wrapped by the mounting plate and the mounting cover, so that noise generated by transmission is reduced and transmitted to the outside of the mounting plate and the mounting cover.
Preferably, the mounting plate is provided with a mounting groove for mounting the support bearing, the support bearing is inserted in the mounting groove, and the mounting plate and the mounting cover are matched and fixed with the support bearing. The support bearing is more convenient to install, and the support bearing and the rotating shaft body can be detached and replaced.
Preferably, the support bearing of the end, close to the input worm, of the rotating shaft body is arranged on one side, close to the first transmission worm, of the transmission worm wheel. The length of the rotating shaft body is shortened, and the manufacturing cost is reduced; the support bearing forms a supporting point between the transmission worm wheel and the first transmission worm, so that bending moment on the rotating shaft body is reduced, and transmission of the rotating shaft body is facilitated.
Preferably, the first and second drive worm gears are spaced apart. When the first transmission worm drives the first transmission worm wheel and the second transmission worm wheel, the first transmission worm wheel and the second transmission worm wheel are not interfered with each other; the interval distance between the paper breaking rollers is relatively fixed, and the first transmission worm wheel and the second transmission worm wheel are arranged at intervals, namely, the radius of the first transmission worm wheel and the radius of the second transmission worm wheel are shortened, and the manufacturing cost is reduced.
Preferably, the transmission worm gear is detachably connected to the rotating shaft body. Helping to replace a damaged transfer worm gear.
Preferably, the input worm, the power transmission shaft, the first drive worm wheel and the second drive worm wheel are all mounted on a side of the mounting plate facing away from the shredding roll. The driving mechanism and the paper breaking roller work area are separated, and the influence of paper breaking on the operation of the driving mechanism is reduced.
The beneficial effects of the utility model are as follows: according to the utility model, the transmission of the input worm and the transmission worm wheel, the transmission of the first transmission worm and the first transmission worm wheel and the transmission of the second transmission worm and the second transmission worm wheel are all inclined planes and continuously slide, namely, the transmission is quite, and the noise generated by the transmission is reduced; the transmission worm wheel is made of metal materials, so that the influence of temperature rise on the transmission worm wheel is reduced, and the working time of the paper shredder is prolonged; the transmission worm wheel, the rotating shaft body, the first transmission worm, the second transmission worm, the first transmission worm wheel and the second transmission worm wheel are wrapped by the mounting plate and the mounting cover, so that noise generated by transmission is reduced and transmitted to the outside of the mounting plate and the mounting cover.
Drawings
FIG. 1 is a schematic diagram of an explosion structure of the present embodiment;
FIG. 2 is a schematic diagram of the overall structure of the present embodiment;
fig. 3 is a schematic view of the overall structure of the mounting plate in this embodiment.
Reference numerals illustrate: 1. a mounting base; 2. inputting a worm; 3. a first drive worm gear; 4. a second drive worm gear; 5. a power transmission shaft; 51. a rotating shaft body; 52. a transmission worm wheel; 521. a fixing part; 53. a transmission worm group; 531. a first transfer worm; 532. a second transfer worm; 6. a mounting assembly; 61. a mounting plate; 611. a receiving groove; 612. a heat sink; 613. a mounting groove; 62. a mounting cover; 7. a first bearing; 8. and a second bearing.
Detailed Description
The utility model is further described with reference to fig. 1-3:
referring to fig. 1, in the present embodiment, a worm and gear transmission mechanism for a shredder includes a mounting base 1, an input worm 2 vertically mounted on the mounting base 1, a first transmission worm wheel 3 and a second transmission worm wheel 4 which respectively and independently drive a shredding roller to rotate, and a power transmission shaft 5 for transmitting power, wherein a motor drives the input worm 2 to rotate, and the power transmission shaft 5 transmits the power of the input worm 2 to the first transmission worm wheel 3 and the second transmission worm wheel 4, thereby driving the shredding roller to rotate.
The motor and the paper breaking roller are arranged on the inner side of the mounting seat 1, the input worm 2, the power transmission shaft 5, the first transmission worm wheel 3 and the second transmission worm wheel 4 are arranged on the outer side of the mounting seat 1, the mounting seat 1 is divided into a working area and a transmission area, the motor and the paper breaking roller in the working area generate heating in the working process, and the mounting seat 1 reduces the influence of the heating of the working area on the transmission area; the working area generates scraps during working, and the installation seat 1 reduces the situation that scraps enter the transmission area.
The input worm 2 can be integrally arranged with the output shaft of the motor, i.e. the output shaft of the motor is directly processed into the input worm 2.
Referring to fig. 1 and 2, the power transmission shaft 5 includes a rotation shaft body 51, a transmission worm wheel 52 mounted at one end of the rotation shaft body 51, and a transmission worm group 53 mounted at the other end of the rotation shaft body 51, and the transmission worm wheel 52 is in transmission connection with the rotation shaft body 51 to form a primary worm gear. The transfer worm group 53 includes a first transfer worm 531 and a second transfer worm 532 which are opposite in spiral, and the first transfer worm 531 and the second transfer worm 532 are both coaxially provided with the rotation shaft body 51. The first transmission worm 531 is in transmission connection with the first transmission worm wheel 3, and the second transmission worm 532 is in transmission connection with the second transmission worm wheel 4, so that a two-stage worm wheel and worm transmission is formed. The transmission worm wheel close to the input worm 2 is a first transmission worm wheel 3, the transmission worm wheel far away from the input worm 2 is a second transmission worm wheel 4, and the rotating shaft body 51 drives the first transmission worm 531 and the second transmission worm 532 to rotate, so that the first transmission worm wheel 3 rotates clockwise, and the second transmission worm wheel 4 rotates anticlockwise.
The transmission between the worm and the gear is actually side continuous sliding transmission, and the transmission process is quieter, so that the effect of reducing transmission noise is realized; the transmission worm gear 52 is made of metal materials, so that the influence of the temperature rise of the motor on the structure of the transmission worm gear 52 is reduced, and the working time of the paper shredder is prolonged.
The transmission worm wheel 52 is provided with a fixing portion 521 on one side, the fixing portion 521 and the transmission worm wheel 52 are integrally provided, and the fixing portion 521 and the transmission worm wheel 52 are both sleeved outside the rotation shaft body 51. The fixing portion 521 is provided with a fixing hole, the position of the rotating shaft body 51 corresponding to the fixing hole is provided with a pin hole, a pin shaft is penetrated in the fixing hole, and the pin shaft is inserted in the fixing hole and the pin hole, so that the fixing portion 521 and the rotating shaft body 51 are relatively fixed. Removably attaching the transfer worm wheel 52 to the rotating shaft body 51 facilitates replacement of the transfer worm wheel 52 with a worn-out one.
The first transmission worm wheel 3 and the second transmission worm wheel 4 are arranged at intervals, the interval distance between the paper crushing rollers is fixed, namely, the radius of the first transmission worm wheel 3 and the radius of the second transmission worm wheel 4 are reduced, so that the manufacturing cost is reduced, and the first transmission worm wheel 3 and the second transmission worm wheel 4 do not interfere with each other when rotating.
Referring to fig. 1, 2 and 3, a mounting assembly 6 is further disposed between the rotating shaft body 51 and the mounting seat 1, and the mounting assembly 6 includes a mounting plate 61 mounted on the mounting seat 1 and a mounting cover 62 disposed on a side of the mounting plate 61 away from the mounting seat 1, where the mounting plate 61 is disposed parallel to the mounting seat 1. The mounting plate 61 is provided with a containing groove 611 for containing the power transmission shaft 5, the first transmission worm wheel 3 and the second transmission worm wheel 4, and the power transmission shaft 5, the first transmission worm wheel 3 and the second transmission worm wheel 4 are arranged at intervals with the inner wall of the containing groove 611. The rotating shaft body 51 of the power transmission shaft 5 is rotatably connected to the mounting plate 61 through a support bearing, a mounting groove 613 for mounting the support bearing is formed in the mounting plate 61, the support bearing is inserted into the mounting groove 613, and the mounting plate 61 and the mounting cover 62 are matched to fix the support bearing.
The installation lid 62 is fixed in on the mount pad 1 through the screw, and installation lid 62 and mount pad 1 close fit for accommodation groove 611 forms an inner chamber, and input worm 2, power transmission shaft 5, first transmission worm wheel 3 and second transmission worm wheel 4 all are located in the inner chamber, make the noise that the transmission produced between input worm 2, power transmission shaft 5, first transmission worm wheel 3 and the second transmission worm wheel 4 by mounting panel 61 and installation lid 62 are isolated, thereby reduce the noise that the transmission produced and spread outside mounting panel 61 and installation lid 62.
During installation, the mounting plate 61 is fixed on one side of the mounting seat 1, which is away from the paper shredding roll, through bolts, the support bearing is inserted into the mounting groove 613, the transmission worm wheel 52, the rotating shaft body 51, the first transmission worm 531, the second transmission worm 532, the first transmission worm wheel 3 and the second transmission worm wheel 4 are all positioned in the accommodating groove 611, and then the mounting cover 62 is mounted on the mounting plate 61, so that the installation and replacement of the support bearing are more convenient.
Referring to fig. 2, the support bearing includes a first bearing 7 and a second bearing 8, the first bearing 7 being disposed at an end of the rotation shaft body 51 near the transmission worm wheel 52, and the second bearing 8 being disposed at an end of the rotation shaft body 51 far from the transmission worm wheel 52. The first bearing 7 is disposed on a side of the transmission worm wheel 52 close to the first transmission worm 531, and the fixing portion 521 of the transmission worm wheel 52 is disposed on a side of the transmission worm wheel 52 close to the first bearing 7, so that the length of the rotating shaft body 51 is shortened, the transmission efficiency is improved, and the manufacturing cost of the rotating shaft body 51 is reduced.
While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.
Claims (8)
1. Worm and gear transmission mechanism for paper shredder, comprising a mounting base (1), characterized in that: the utility model discloses a paper crushing roller, including mount pad (1), mount pad (1) are equipped with input worm (2) that are connected with motor drive, respectively independently drive garrulous paper roll pivoted first transmission worm wheel (3) and second transmission worm wheel (4), are used for transmitting power transmission axle (5), power transmission axle (5) include:
the rotary shaft body (51) is provided with support bearings at two ends of the rotary shaft body (51), and the rotary shaft body (51) is rotatably connected to the mounting seat (1) through the support bearings;
the transmission worm wheel (52) is arranged at one end of the rotating shaft body (51) close to the input worm (2), and the transmission worm wheel (52) is in transmission connection with the input worm (2);
the transmission worm group (53) comprises a first transmission worm (531) and a second transmission worm (532) which are arranged on the rotating shaft body (51), the first transmission worm (531) and the second transmission worm (532) are coaxially arranged with the rotating shaft body (51), the first transmission worm (531) is in transmission connection with the first transmission worm wheel (3), the second transmission worm (532) is in transmission connection with the second transmission worm wheel (4), and the spiral directions of the first transmission worm (531) and the second transmission worm (532) are opposite.
2. A worm gear drive for a shredder as claimed in claim 1, wherein: the mounting seat (1) is provided with a mounting assembly (6), and the mounting assembly (6) comprises a mounting plate (61) arranged on the mounting seat (1) and a mounting cover (62) arranged on one side, deviating from the mounting seat (1), of the mounting plate (61); the mounting plate (61) is provided with a containing groove (611), and the transmission worm wheel (52), the rotating shaft body (51), the first transmission worm (531), the second transmission worm (532), the first transmission worm wheel (3) and the second transmission worm wheel (4) are all positioned in the containing groove (611).
3. A worm gear drive for a shredder as claimed in claim 2, wherein: the mounting cover (62) is tightly attached to the mounting plate (61), and the accommodating groove (611) is completely positioned between the mounting cover (62) and the mounting plate (61).
4. A worm gear drive for a shredder according to claim 3, wherein: the mounting plate (61) is provided with a mounting groove (613) for mounting a support bearing, the support bearing is inserted into the mounting groove (613), and the mounting plate (61) and the mounting cover (62) are matched and fixed with the support bearing.
5. A worm gear drive for a shredder as claimed in claim 1, wherein: the support bearing of the rotating shaft body (51) close to one end of the input worm (2) is arranged on one side of the transmission worm wheel (52) close to the first transmission worm (531).
6. A worm gear drive for a shredder as claimed in claim 1, wherein: the first transmission worm wheel (3) and the second transmission worm wheel (4) are arranged at intervals.
7. A worm gear drive for a shredder as claimed in claim 1, wherein: the transmission worm wheel (52) is detachably connected to the rotating shaft body (51).
8. A worm gear drive for a shredder as claimed in claim 1, wherein: the input worm (2), the power transmission shaft (5), the first transmission worm wheel (3) and the second transmission worm wheel (4) are all arranged on one side of the mounting plate (61) away from the paper breaking roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223172111.XU CN219013274U (en) | 2022-11-29 | 2022-11-29 | Worm and gear transmission mechanism for paper shredder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223172111.XU CN219013274U (en) | 2022-11-29 | 2022-11-29 | Worm and gear transmission mechanism for paper shredder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219013274U true CN219013274U (en) | 2023-05-12 |
Family
ID=86267845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223172111.XU Active CN219013274U (en) | 2022-11-29 | 2022-11-29 | Worm and gear transmission mechanism for paper shredder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219013274U (en) |
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2022
- 2022-11-29 CN CN202223172111.XU patent/CN219013274U/en active Active
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