CN210739177U

CN210739177U - Conical surface friction type clutch device

Info

Publication number: CN210739177U
Application number: CN201921863292.6U
Authority: CN
Inventors: 高宗海
Original assignee: Shandong Huasheng Zhongtian Machinery Group Co ltd
Current assignee: Shandong Huasheng Zhongtian Machinery Group Co ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-06-12
Anticipated expiration: 2029-11-01

Abstract

The utility model discloses a conical surface friction type clutch device, which belongs to the field of clutches and is used for power transmission, and comprises a driving gear arranged on an input shaft, wherein the driving gear is respectively meshed with an upper driven gear and a lower driven gear for transmission, the upper driven gear and the lower driven gear are both arranged on an output shaft, a clutch block is arranged between the upper driven gear and the lower driven gear, and the clutch block is provided with a friction conical surface respectively jointed with the upper driven gear and the lower driven gear; one side of separation and reunion piece is provided with the shift fork of shifting, and the shift fork of shifting is located between last shift cam, the cam of shifting down, and wherein go up shift cam, shift fork of shifting, the cam of shifting down all installs on the selector shaft, and the shift fork of shifting rotates around the selector shaft between last shift cam, the cam of shifting down. In view of above-mentioned technical scheme, the utility model discloses can be used for solving conical surface friction clutch and lead to the not enough problem of transmission moment of torsion because the packing force declines.

Description

Conical surface friction type clutch device

Technical Field

The utility model belongs to the clutch field, specifically speaking especially relates to a conical surface friction clutch device.

Background

The conical surface friction type clutch is mainly composed of a driving part, a friction lining surface, a driven part and a pressing mechanism, the friction lining surface is gradually lost along with the extension of the working time of the clutch, and the elastic force in the pressing mechanism is gradually declined along with the extension of the service time. These results in a reduction in the pressing force between the driving member and the driven member in the conical friction clutch, resulting in insufficient torque transmission therebetween, slippage, and the like.

Disclosure of Invention

An object of the utility model is to provide a conical surface friction clutch device, it can be used for solving conical surface friction clutch because the packing force decline leads to the not enough problem of transmission moment of torsion.

In order to achieve the purpose, the utility model is realized by the following technical proposal:

the conical surface friction type clutch device comprises a driving gear arranged on an input shaft, wherein the driving gear is respectively meshed with an upper driven gear and a lower driven gear for transmission, the upper driven gear and the lower driven gear are both arranged on an output shaft, a clutch block is arranged between the upper driven gear and the lower driven gear, and a friction conical surface respectively attached to the upper driven gear and the lower driven gear is arranged on the clutch block; one side of separation and reunion piece is provided with the shift fork of shifting, and the shift fork of shifting is located between last shift cam, the cam of shifting down, and wherein go up shift cam, shift fork of shifting, the cam of shifting down all installs on the selector shaft, and the shift fork of shifting rotates around the selector shaft between last shift cam, the cam of shifting down.

Furthermore, the clutch block of the utility model is provided with a hoop spring on the internal conical surfaces of the upper end and the lower end of the clutch block, and a plane thrust bearing is respectively arranged between the hoop spring and the upper driven gear and between the hoop spring and the lower driven gear.

Furthermore, the utility model discloses in the separation and reunion piece be provided with concentric radial slot on the friction conical surface with last driven gear, lower driven gear laminating.

Furthermore, the upper driven gear and the lower driven gear in the utility model both comprise a gear body, a conical surface friction sleeve and an end surface friction sleeve, wherein the conical surface friction sleeve is matched with the friction conical surface of the clutch block; the end face friction sleeve is matched with the gear shifting fork.

Furthermore, the utility model discloses in terminal surface friction cover be the inclined plane with shift fork complex terminal surface of shifting.

Furthermore, the utility model discloses in output shaft and separation and reunion piece between through trapezoidal thread connection.

Further, the hoop spring in the utility model is formed by connecting hooks at two ends of the spring, and the outermost side of the hooks at the two ends of the spring passes through the central line of the spring.

Compared with the prior art, the beneficial effects of the utility model are that:

the clutch block is used as a driven part and is arranged on the upper driven gear and the lower driven gear, so that the installation space is not required to be additionally increased, and the whole structure is compact; the pressing force between the clutch block and the driven gear is only related to the rotating speed of the driving gear, and the larger the rotating speed of the driving gear is, the larger the corresponding transmission torque is.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the clutch block of the present invention.

Fig. 3 is a sectional view taken at a position a-a in fig. 2.

Fig. 4 is an enlarged view of the position B in fig. 3.

Fig. 5 is a schematic structural view of the driven gear of the present invention.

Fig. 6 is a schematic structural diagram of the middle tension spring of the present invention.

In the figure: 1. an input shaft; 2. a driving gear; 3. an upper driven gear; 4. a collar; 5. a retainer ring; 6. a hoop spring; 7. a planar thrust bearing; 8. a clutch block; 9. a shift shaft; 10. an upper shift cam; 11. a gear shifting fork; 12. a lower shift cam; 13. a lower driven gear; 14. an output shaft; 15. a gear body; 16. a conical surface friction sleeve; 17. and an end face friction sleeve.

Detailed Description

The technical solution of the present invention will be further described and illustrated with reference to the accompanying drawings and embodiments.

It should be noted that, in the following paragraphs, possible directional terms including, but not limited to, "upper, lower, left, right, front, rear" and the like are used, and all directions are meant to correspond to the visual directions shown in the drawings of the specification, which should not be construed as limiting the scope or technical solutions of the present invention, and are only for facilitating the better understanding of the technical solutions of the present invention by those skilled in the art.

In the description of the present specification, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1

A conical surface friction type clutch device is arranged between an input shaft 1 and an output shaft 14 and comprises a driving gear 2 arranged on the input shaft 1, wherein the driving gear 2 is respectively meshed with an upper driven gear 3 and a lower driven gear 13 on the output shaft 14 for transmission, a clutch block 8 is arranged on the output shaft 14 between the upper driven gear 3 and the lower driven gear 13, and the clutch block 8 is connected with the output shaft 14 through trapezoidal threads; a hoop spring 6 is mounted in a tapered groove at both ends of a clutch block 8, a flat thrust bearing 7 is mounted between the hoop spring 6 and an upper driven gear 3 and a lower driven gear 13, and the upper driven gear 3 is mounted on an output shaft 14 through a collar 4 and a retainer ring 5. The clutch block 8 is limited between the upper driven gear 3 and the lower driven gear 13 under the action of the hoop spring 6, and a friction conical surface which can be mutually attached to the upper driven gear 3 and the lower driven gear 13 is arranged on the clutch block 8. A gear shifting fork 11 is arranged on one side of the clutch block 8, the gear shifting fork 11 is positioned between an upper gear shifting cam 10 and a lower gear shifting cam 12, and the upper gear shifting cam 10, the gear shifting fork 11 and the lower gear shifting cam 12 are all positioned on the gear shifting shaft 9.

Example 2

A clutch device of conical surface friction type, wherein the clutch block 8 is equipped with concentric radial grooves on the friction conical surface jointed with the upper driven gear 3 and the lower driven gear 13; the upper driven gear 3 and the lower driven gear 13 both comprise a gear body 15, a conical surface friction sleeve 16 and an end surface friction sleeve 17, wherein the conical surface friction sleeve 16 is matched with a friction conical surface of the clutch block 8; the end face friction sleeve 17 is matched with the gear shifting fork 11; the end surface of the end surface friction sleeve 17 matched with the gear shifting fork 11 is an inclined surface; the output shaft 14 is connected with the clutch block 8 through trapezoidal threads; the hoop spring 6 is formed by connecting hooks at two ends of the spring, and the outermost sides of the hooks at the two ends of the spring pass through the center line of the spring. The structures and the connection relations of the rest parts are the same as those described in any of the previous embodiments.

On the basis of the above embodiments, the present invention proceeds with detailed descriptions of technical features and functions thereof, so as to help those skilled in the art fully understand the technical solution of the present invention and reproduce it.

As shown in fig. 1 to 4, the driving gear 2 is mounted on the input shaft 1 and drives the upper driven gear 3 and the lower driven gear 13 to rotate around the output shaft 14 in a gear engagement manner, the upper driven gear 3, the lower driven gear 13, the clutch block 8, the flat thrust bearing 7 and the hoop spring 6 are limited on the output shaft 14 by the collar 4 and the retainer ring 5, wherein the clutch block 8 is located between the upper driven gear 3 and the lower driven gear 13 and is provided with friction conical surfaces which can be mutually attached to the upper driven gear 3 and the lower driven gear 13 on the clutch block 8, the hoop spring 6 is mounted on the inner conical surfaces of the upper end and the lower end of the clutch block 8, and the clutch block 8 is limited between the upper driven gear 3 and the lower driven gear 13 under the elastic force of the hoop spring 6 at the upper end and the lower end, namely, in a neutral position. Two plane thrust bearings 7 are respectively arranged between the hoop spring 6 and the upper driven gear 3 and the lower driven gear 13, and an output shaft 14 is connected with the clutch block 8 through trapezoidal threads. An upper shift cam 10, a lower shift cam 12 and a shift fork 11 are mounted on the shift shaft 9, the shift fork 11 is located between the upper shift cam 10 and the lower shift cam 12, the upper shift cam 10 and the lower shift cam 12 are fixed to the shift shaft 9, and the shift fork 11 is rotatable around the shift shaft 9 between the upper shift cam 10 and the lower shift cam 12.

As shown in fig. 2 to 4, the clutch block 8 of the present invention has concentric radial grooves on the conical surface engaged with the upper driven gear 3 and the lower driven gear 13 to perform the functions of scraping oil, cooling and effectively discharging abrasive particles.

As shown in fig. 5, the utility model provides an upper driven gear 3 and lower driven gear 13 comprise gear body 15, conical surface friction cover 16 and end face friction cover 17, and end face friction cover 17 and shift fork 11 complex terminal surface are designed into the inclined plane to thereby be used for reducing and shift the area of contact between the shift fork 11 and reduce the resistance of shifting.

As shown in fig. 6, the hoop spring 6 of the present invention is formed by connecting hooks at two ends of a spring. The outmost side of the hook at the two ends of the spring passes through the center line of the spring body, so that the hoop spring 6 freely rolls on the matching conical surface of the clutch block 8 without clamping stagnation.

When the clutch block 8 is located at the intermediate position between the upper driven gear 3 and the lower driven gear 13, the upper driven gear 3 and the lower driven gear 13 idle and transmit no torque. When the gear shifting shaft 9 rotates clockwise for a certain angle, the gear shifting fork 11 pushes the clutch block 8 to move downwards so that the clutch block 8 is attached to the lower driven gear 13 to rotate, meanwhile, the lower driven gear 13 drives the clutch block 8 to have the tendency of moving downwards along the output shaft 14, so that the clutch block 8 is attached to the lower driven gear 13 more tightly, power can be transmitted to the output shaft 14 more reliably, and vice versa.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A conical surface friction clutch device, includes driving gear (2) installed on input shaft (1), its characterized in that: the driving gear (2) is respectively meshed with the upper driven gear (3) and the lower driven gear (13) for transmission, the upper driven gear (3) and the lower driven gear (13) are both arranged on the output shaft (14), a clutch block (8) is arranged between the upper driven gear (3) and the lower driven gear (13), and the clutch block (8) is provided with friction conical surfaces respectively attached to the upper driven gear (3) and the lower driven gear (13); one side of clutch piece (8) is provided with shift fork (11), and shift fork (11) are located shift cam (10) down and shift between cam (12), and wherein shift cam (10), shift fork (11) down and shift cam (12) all install on selector shaft (9), and shift fork (11) are shifted cam (10) up and shift cam (12) down and are shifted and rotate around selector shaft (9).

2. The bevel friction clutch apparatus according to claim 1, wherein: and hoop springs (6) are arranged on the inner conical surfaces of the upper end and the lower end of the clutch block (8), and plane thrust bearings (7) are respectively arranged between the hoop springs (6) and the upper driven gear (3) and between the hoop springs and the lower driven gear (13).

3. The bevel friction clutch apparatus according to claim 1, wherein: and the clutch block (8) is provided with concentric radial grooves on the friction conical surface attached to the upper driven gear (3) and the lower driven gear (13).

4. The bevel friction clutch apparatus according to claim 1, wherein: the upper driven gear (3) and the lower driven gear (13) respectively comprise a gear body (15), a conical surface friction sleeve (16) and an end surface friction sleeve (17), wherein the conical surface friction sleeve (16) is matched with a friction conical surface of the clutch block (8); the end face friction sleeve (17) is matched with the gear shifting fork (11).

5. The bevel friction clutch apparatus according to claim 4, wherein: the end face friction sleeve (17) and the end face matched with the gear shifting fork (11) are inclined planes.

6. The bevel friction clutch apparatus according to claim 1, wherein: the output shaft (14) is connected with the clutch block (8) through trapezoidal threads.

7. The bevel friction clutch apparatus according to claim 2, wherein: the hoop spring (6) is formed by connecting hooks at two ends of the spring, and the outermost sides of the hooks at the two ends of the spring pass through the center line of the spring.