CN211852721U

CN211852721U - Axial variable-pitch feeding cam

Info

Publication number: CN211852721U
Application number: CN201922244754.2U
Authority: CN
Inventors: 李秀
Original assignee: Nanjing Keyi Intelligent Equipment Co ltd
Current assignee: Nanjing Keyi Intelligent Equipment Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-11-03
Anticipated expiration: 2029-12-13

Abstract

The utility model relates to the technical field of feeding devices, and discloses an axial variable-pitch feeding cam, which comprises a rotating shaft, a variable-pitch seat, a variable-pitch cylinder, a variable-pitch rod and a feeding cam; the variable-pitch seat is fixedly arranged on the rotating shaft, the variable-pitch cylinder is arranged on the variable-pitch seat, a variable-pitch rod is arranged on the variable-pitch cylinder, the other end of the variable-pitch rod is fixedly connected with the feeding cam, and the feeding cam is axially connected with the rotating shaft in a sliding manner and is driven by the rotating shaft to correspondingly rotate. This scheme has adopted the displacement cylinder, and this displacement cylinder is fixed on the displacement seat, and the displacement seat is fixed again in the axis of rotation, forms a reference surface. Meanwhile, the movement of the variable-pitch cylinder is utilized to drive the feeding cam to change the pitch on the rotating shaft, and the structure is simple and practical.

Description

Axial variable-pitch feeding cam

Technical Field

The utility model relates to a material feeding unit technical field specifically is but axial displacement pay-off cam.

Background

The feeding device is an indispensable device in the light industry and the heavy industry. In some feeding devices, a feeding cam is used to perform the feeding function. The existing feeding cams are fixed on the rotating shaft and cannot change the distance on the rotating shaft.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a but axial displacement pay-off cam solves among the prior art problem that the cam can not be at the axis of rotation displacement.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the axial variable-pitch feeding cam comprises a rotating shaft, a variable-pitch seat, a variable-pitch cylinder, a variable-pitch rod and a feeding cam; the variable-pitch seat is fixedly arranged on the rotating shaft, the variable-pitch cylinder is arranged on the variable-pitch seat, a variable-pitch rod is arranged on the variable-pitch cylinder, the other end of the variable-pitch rod is fixedly connected with the feeding cam, and the feeding cam is axially connected with the rotating shaft in a sliding manner and is driven by the rotating shaft to correspondingly rotate. This scheme has adopted the displacement cylinder, and this displacement cylinder is fixed on the displacement seat, and the displacement seat is fixed again in the axis of rotation, forms a reference surface. Meanwhile, the movement of the variable-pitch cylinder is utilized to drive the feeding cam to change the pitch on the rotating shaft, and the structure is simple and practical.

Further, the rotating shaft comprises a variable pitch section and a fixed section for closing the variable pitch section; the variable pitch section is provided with radially symmetrical driving surfaces, and a driven surface matched with the driving surfaces is arranged in a connecting groove of the feeding cam. The arrangement is that other connecting pieces are not needed to be installed again to connect the rotating shaft and the feeding cam, so that the radial rotation of the feeding cam in the rotating shaft can be limited, the rotating shaft is utilized to drive the feeding cam to move, the driving surface and the driven surface can be matched to reasonably bear the rotation, and the driving surface can also play a role in guiding the variable pitch of the feeding cam.

Furthermore, a sliding groove is formed in the middle of the driving surface, a mounting groove is formed in the driven surface corresponding to the sliding groove, a ball is arranged in the mounting groove, and a sealing cover for fixing the ball is arranged outside the mounting groove. The ball and the sliding groove are matched, so that the stability of the variable pitch can be improved, the friction force of the variable pitch is reduced, and the service life is prolonged.

Further, the upper end and the lower end of the mounting groove are provided with sealing rings. The sealing ring is arranged to prevent sundries from entering the mounting groove.

Further, a lubricating device is arranged on the feeding cam. Set up lubricating arrangement and can be for adding lubricating oil in the mounting groove, reduce the friction, improve displacement efficiency.

Further, lubricating arrangement includes the oiling piece, be provided with the oil pocket on the oiling piece, be provided with the oil filler point on the pay-off cam, the oil filler point with the oil pocket intercommunication.

Has the advantages that: this scheme has adopted the displacement cylinder, and this displacement cylinder is fixed on the displacement seat, and the displacement seat is fixed again in the axis of rotation, forms a reference surface. Meanwhile, the movement of the variable-pitch cylinder is utilized to drive the feeding cam to change the pitch on the rotating shaft, and the structure is simple and practical.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a schematic cross-sectional view of a feed cam according to the present embodiment;

reference numerals: the variable-pitch device comprises a rotating shaft 1, a variable-pitch section 11, a fixed section 12, a driving surface 13, a sliding chute 14, a variable-pitch seat 2, a variable-pitch cylinder 3, a variable-pitch rod 4, a feeding cam 5, a driven surface 51, a mounting groove 52, a ball 53, a sealing cover 54, a sealing ring 55, an oil filling hole 56, a lubricating device 6, an oil filling block 61 and an oil cavity 62.

Detailed Description

The technical solution of the axial variable-pitch feeding cam according to the present invention will be described in further detail with reference to the following embodiments.

In the description of the present invention, 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 in specific cases to those skilled in the art.

As shown in fig. 1 and fig. 2, the axial variable-pitch feeding cam 5 of the present embodiment includes a rotating shaft 1, a variable-pitch seat 2, a variable-pitch cylinder 3, a variable-pitch rod 4 and a feeding cam 5; the variable-pitch seat 2 is fixedly arranged on the rotating shaft 1, the variable-pitch cylinder 3 is arranged on the variable-pitch seat 2, a variable-pitch rod 4 is arranged on the variable-pitch cylinder 3, the other end of the variable-pitch rod 4 is fixedly connected with the feeding cam 5, and the feeding cam 5 is axially connected with the rotating shaft 1 in a sliding manner and is driven by the rotating shaft 1 to rotate correspondingly. The rotating shaft 1 comprises a variable pitch section 11 and a fixed section 12 for closing the variable pitch section 11; the pitch-variable section 11 is provided with radially symmetrical driving surfaces 13, and a driven surface 51 matched with the driving surfaces 13 is arranged in a connecting groove of the feeding cam 5. By the arrangement, the radial rotation of the feeding cam 5 on the rotating shaft can be limited without installing other connecting pieces again to connect the rotating shaft 1 and the feeding cam 5, so that the rotating shaft 1 is utilized to drive the feeding cam 5 to move, the driving surface 13 and the driven surface 51 can be matched to reasonably bear the rotation, and the driving surface 13 can also play a role in guiding the variable pitch of the feeding cam 5. The middle part of the driving surface 13 is provided with a sliding groove 14, the driven surface 51 is provided with a mounting groove 52 corresponding to the sliding groove 14, a ball 53 is arranged in the mounting groove 52, and a sealing cover 54 for fixing the ball 53 is arranged outside the mounting groove 52. The ball 53 is matched with the sliding groove 14, so that the stability of the variable pitch can be improved, the friction force of the variable pitch can be reduced, and the service life can be prolonged. And the upper end and the lower end of the mounting groove 52 are provided with sealing rings 55. And a lubricating device 6 is arranged on the feeding cam 5. The lubricating device 6 comprises an oil injection block 61, an oil cavity 62 is formed in the oil injection block 61, an oil injection hole 56 is formed in the feeding cam 5, and the oil injection hole 56 is communicated with the oil cavity 62. This scheme has adopted displacement cylinder 3, and this displacement cylinder 3 is fixed on displacement seat 2, and displacement seat 2 is fixed again on axis of rotation 1, forms a reference surface. Meanwhile, the movement of the variable pitch cylinder 3 is utilized to drive the feeding cam 5 to change the pitch on the rotating shaft 1, and the structure is simple and practical.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. But axial displacement pay-off cam, its characterized in that: comprises a rotating shaft, a variable pitch seat, a variable pitch cylinder, a variable pitch rod and a feeding cam; the variable-pitch seat is fixedly arranged on the rotating shaft, the variable-pitch cylinder is arranged on the variable-pitch seat, a variable-pitch rod is arranged on the variable-pitch cylinder, the other end of the variable-pitch rod is fixedly connected with the feeding cam, and the feeding cam is axially connected with the rotating shaft in a sliding manner and is driven by the rotating shaft to correspondingly rotate.

2. The axially variable feed cam of claim 1, wherein: the rotating shaft comprises a variable pitch section and a fixed section for closing the variable pitch section; the variable pitch section is provided with radially symmetrical driving surfaces, and a driven surface matched with the driving surfaces is arranged in a connecting groove of the feeding cam.

3. The axially variable feed cam of claim 2, wherein: the middle of the driving surface is provided with a sliding groove, the driven surface is provided with a mounting groove corresponding to the sliding groove, a ball is arranged in the mounting groove, and a sealing cover for fixing the ball is arranged outside the mounting groove.

4. The axially variable feed cam of claim 3, wherein: and sealing rings are arranged at the upper end and the lower end of the mounting groove.

5. The axially variable feed cam of claim 3, wherein: and a lubricating device is arranged on the feeding cam.

6. The axially variable feed cam of claim 5, wherein: the lubricating device comprises an oil injection block, an oil cavity is formed in the oil injection block, an oil filling hole is formed in the feeding cam, and the oil filling hole is communicated with the oil cavity.