阅读说明：本技术 一种传动转向机构 (Transmission steering mechanism ) 是由 李大柱 龚志龙 许丽芬 于 2021-08-16 设计创作，主要内容包括：本发明公开了传动转向机构,其特征在于：包括由滑轮和柔索构成的柔索机构,所述柔索由相互配合作用的盘形凸轮和凸轮滚子带动,位于转向平面内的转向滑轮与所述柔索固连。本发明传动转向机构,结构简单,转向控制精度高,可以实现高速静音转动,具有较强的实用性和较好的应用前景。(The invention discloses a transmission steering mechanism, which is characterized in that: the flexible cable mechanism comprises a pulley and a flexible cable, wherein the flexible cable is driven by a disc cam and a cam roller which are mutually matched, and a steering pulley positioned in a steering plane is fixedly connected with the flexible cable. The transmission steering mechanism has the advantages of simple structure, high steering control precision, capability of realizing high-speed silent rotation, stronger practicability and better application prospect.)

1. A transmission steering mechanism is characterized in that: the flexible cable mechanism comprises a pulley and a flexible cable, wherein the flexible cable is driven by a disc cam and a cam roller which are mutually matched, and a steering pulley positioned in a steering plane is fixedly connected with the flexible cable.

2. The drive steering mechanism of claim 1, wherein: the disc cam is connected to the fixed frame through a fixed shaft.

3. The drive steering mechanism of claim 1, wherein: the flexible cable mechanism is supported by the movable frame.

4. The drive steering mechanism of claim 3, wherein: the movable rack comprises a supporting bottom plate, and a support for supporting the pulley is arranged on the supporting bottom plate.

5. The drive steering mechanism of claim 4, wherein: the supporting bottom plate is provided with a sliding sleeve, and the sliding shaft penetrates through the sliding sleeve and can move up and down along the sliding sleeve.

6. The drive steering mechanism of claim 5, wherein: the supporting base plate below be equipped with the cover with the epaxial spring of slide, the cam roller is connected the slide lower extreme, the slide upper end is connected with the connecting piece, the connecting piece is connected on the flexible rope.

7. The drive steering mechanism according to any one of claims 4 to 6, wherein: the pulleys include a first pulley, a second pulley, and a third pulley, wherein the third pulley is the diverting pulley.

8. The drive steering mechanism of claim 7, wherein: a first support shaft is arranged on the first pulley and supported on the support bottom plate through a first support; the second pulley is arranged above the first pulley and is vertical to the rotating axial direction of the first pulley; a second support shaft is arranged on the second pulley and is connected to the support bottom plate through a second support; the third pulley is supported on the support base plate by a third support shaft.

9. The drive steering mechanism of claim 8, wherein: be equipped with the regulation hole that supports at first supporting shaft both ends on the first support, regulation hole top is equipped with the regulating plate, and adjusting screw passes the regulating plate is connected to first supporting shaft.

10. The drive steering mechanism of claim 7, wherein: the two second pulleys are arranged in parallel at intervals, and the flexible cable wound around the first pulley passes through the two second pulleys on two sides respectively and then is wound on the third pulley to form a closed loop.

Technical Field

The invention belongs to the technical field of manufacturing of sanitary articles, and particularly relates to a transmission steering mechanism.

Background

The sucking disc subassembly is widely used in disposable hygienic articles production line, and the sucking disc is used for adsorbing the material on the surface, conveys through transmission, is convenient for produce and carry. The posture is adjusted according to the needs in the transmission process, so that the production needs are better met. In the prior art, a steering mechanism of the transmission device is mostly a gear rack, a worm gear, a worm or a swinging groove cam and the like, the steering control precision is low, the sound is large, and the use requirement can not be well met.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a transmission steering mechanism which is simple in structure, high in steering control precision and capable of achieving high-speed silent rotation.

In order to achieve the purpose, the invention adopts the technical scheme that: the transmission steering mechanism is characterized in that: the flexible cable mechanism comprises a pulley and a flexible cable, wherein the flexible cable is driven by a disc cam and a cam roller which are mutually matched, and a steering pulley positioned in a steering plane is fixedly connected with the flexible cable.

In order to make the technical scheme more detailed and concrete, the invention also provides the following further preferable technical scheme to obtain satisfactory practical effect:

the disc cam is connected to the fixed frame through a fixed shaft.

The flexible cable mechanism is supported by the movable frame.

The movable rack comprises a supporting bottom plate, and a support for supporting the pulley is arranged on the supporting bottom plate.

The supporting bottom plate is provided with a sliding sleeve, and the sliding shaft penetrates through the sliding sleeve and can move up and down along the sliding sleeve.

The supporting base plate below be equipped with the cover with the epaxial spring of slide, the cam roller is connected the slide lower extreme, the slide upper end is connected with the connecting piece, the connecting piece is connected on the flexible rope.

The pulleys include a first pulley, a second pulley, and a third pulley, wherein the third pulley is the diverting pulley.

A first support shaft is arranged on the first pulley and supported on the support bottom plate through a first support; the second pulley is arranged above the first pulley and is vertical to the rotating axial direction of the first pulley; a second support shaft is arranged on the second pulley and is connected to the support bottom plate through a second support; the third pulley is supported on the support base plate by a third support shaft.

Be equipped with the regulation hole that supports at first supporting shaft both ends on the first support, regulation hole top is equipped with the regulating plate, and adjusting screw passes the regulating plate is connected to first supporting shaft.

The two second pulleys are arranged in parallel at intervals, and the flexible cable wound around the first pulley passes through the two second pulleys on two sides respectively and then is wound on the third pulley to form a closed loop.

Compared with the prior art, the invention has the following advantages: the transmission steering mechanism has the advantages of simple structure, high steering control precision, capability of realizing high-speed silent rotation, stronger practicability and better application prospect.

Drawings

The contents of the drawings and the reference numerals in the drawings of the present specification will be briefly described as follows:

FIG. 1 is a schematic structural view of a transmission steering mechanism of the present invention;

FIG. 2 is a schematic view of the operation of the transmission steering mechanism of the present invention;

fig. 3 is a schematic view of the structure of the movable frame of the present invention.

Labeled as: 1. the device comprises a fixed frame, 2, a fixed shaft, 3, a disc cam, 4, a supporting base plate, 5, a second bracket, 6, a first bracket, 7, a sliding sleeve, 8, a sliding shaft, 9, a spring, 10, a cam roller, 11, a first pulley, 12, a second pulley, 13, a third pulley, 14, a first supporting shaft, 15, a second supporting shaft, 16, a third supporting shaft, 17 and a connecting piece.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The invention relates to a transmission steering mechanism, which comprises a flexible cable mechanism consisting of pulleys and a flexible cable, wherein the flexible cable is driven by a disc cam and a cam roller which are mutually matched, and the steering pulleys positioned in a steering plane are fixedly connected with the flexible cable. The invention relates to a transmission steering mechanism, in particular to a zero-backlash steering mechanism, which adopts a force-locking disc cam and is matched with a flexible cable mechanism to realize zero backlash of a transmission system and can realize high-speed mute and long-term lubrication-free transmission.

The transmission steering mechanism of the invention, as shown in figures 1, 2 and 3, comprises a fixed frame 1, a disc cam 3 is connected on the fixed frame 1 through a fixed shaft 2; the disc cam is fixed on the fixed shaft 2, and the movable frame drives the flexible cable pulley mechanism and the cam roller 10 to rotate around the disc cam under the action of external drive. Namely, the upper part of the movable frame can do revolution motion around the central line of the fixed shaft 2, and the forward and reverse rotation of the diverting pulley is realized in the revolution. The movable frame supports the flexible cable mechanism, wherein the supporting seat comprises a supporting bottom plate 4, and the pulley assembly is supported and installed on the supporting bottom plate through a bracket; the sliding sleeve 7 is arranged on the supporting bottom plate 4, the sliding shaft 8 penetrates through the sliding sleeve 7 and can move up and down along the sliding sleeve 7, the sliding shaft 8 is provided with a spring, the lower end of the sliding shaft 8 is connected with a cam roller 10 matched with the disc cam 3, the cam roller 10 moves up and down under the action of the disc cam 3 to drive the sliding shaft 8 to move up and down, the sliding shaft 8 is provided with a connecting piece 17 in contact connection with the flexible cable, the connecting piece 17 moves up and down along with the sliding shaft 8 to drive the flexible cable to act, and the flexible cable drives the sliding shaft to rotate to achieve steering control.

In the present invention, as shown in fig. 2, the pulley assembly includes a first pulley 11, a second pulley 12 and a third pulley 13, wherein the first pulley 11 is provided with a first supporting shaft 14, and the first supporting shaft 14 is supported on the supporting base plate 4 through the first bracket 6; the second pulley 12 is provided with two parallel pulleys which are arranged at intervals, the flexible cable which is wound around the first pulley 11 respectively passes through the two second pulleys 12 at two sides and then is wound on the third pulley 13, and the plane where the third pulley 13 is located is a rotating steering plane. The second pulley 12 is arranged above the first pulley 11 and is vertical to the rotating axial direction of the first pulley 11, a second supporting shaft 15 is arranged on the second pulley 13, and the second supporting shaft 15 is supported and connected to the supporting bottom plate 4 through a second bracket 5; the third pulley is supported on the support base plate 4 by a third support shaft 16. The connecting member 17 can selectively connect the flexible cable between the first pulley 11 and the second pulley 12 on either side according to the rotation direction of the third pulley 13 to control the rotation direction.

In the present invention, the disc cam 3 is fixed on the fixed frame 1, and the first support shaft 14, the second support shaft 15, the third support shaft 16 and the sliding sleeve 7 are fixed on the support base plate 4, as shown in fig. 3; the supporting bottom plate 4 can do circular motion around the fixed frame, and the cam roller 10 drives the sliding shaft 8 to do reciprocating motion in the sliding sleeve 7 under the shape constraint and the spring force constraint of the disc cam 3; the sliding shaft 7 is fixedly connected with a flexible cable through a connecting piece 17, and the flexible cable forms a closed loop through a first pulley 11, a second pulley 12 and a third pulley 13 in sequence; the flexible cable is fixedly connected with the third pulley 13, and the reciprocating linear motion of the sliding shaft is converted into the reciprocating swing of the third pulley 13; the invention realizes the forward and reverse 90-degree reciprocating swing of the transmission steering mechanism through the disc cam 3, as shown in figure 2.

In the invention, when the movable frame rotates around the fixed frame 1 in the whole circle, the spring 9 is always in a pressed state, and the cam roller 10 is tightly attached to the surface of the disc cam 3 through the spring force to realize locking transmission.

In the present invention, the first pulley 11 rotates about the first support shaft 14, the second pulley 12 and the second support shaft 15 rotate, and the third pulley 13 rotates about the third support shaft 16. Wherein the first support shaft 14 is capable of performing a fine position adjustment operation for adjusting the tension of the flexible cable. The first support 6 is supported at two ends of the first support shaft 14, an adjusting hole is formed in the first support 6 and is a kidney-shaped hole, the first support shaft 14 is arranged in the adjusting hole, an adjusting plate is arranged above the adjusting hole, an adjusting screw penetrates through the adjusting plate and is connected to the first support shaft 14, the adjusting screw is rotated to control the position of the first support shaft 14, fine adjustment of the relative position of the first support shaft 14 and the first support 6 is achieved through a screw pair, and therefore the tensioning force of the flexible cable is controlled.

In the invention, the flexible cable is a steel wire rope, and the diameter of the steel wire rope is 3-5 mm; the surface material of the cam roller 10 can be non-metal wear-resistant material, such as high-performance nylon material; the surface of the pulley, which is in contact with the flexible cable, is preferably coated with a wear-resistant material; the outside diameter of the pulley is in the range of 50-150 mm.

In the invention, the sliding sleeve 7 and the sliding shaft 8 are preferably in a ball spline kinematic pair, and the sliding shaft is required to be ensured not to rotate relatively when reciprocating relative to the sliding sleeve.

The transmission steering mechanism has the following advantages: the contour surfaces of the cam roller 10 and the disc cam 3 are changed from shape locking to force locking, so that the non-backlash design is realized, and the transmission precision and the stability are improved; the periphery of the cam roller 10 adopts a non-metal design, so that silent transmission can be realized in high-speed operation, and the cam roller has good vibration and impact absorption characteristics; the whole transmission system can realize a lubrication-free design for long-time operation; the transmission system has better pollution resistance.

The transmission steering mechanism is used for adjusting the conveying posture of raw materials, semi-finished products and finished products in the production process of disposable sanitary products, wherein the sanitary products comprise but are not limited to infant pull-ups, paper diapers, female menstrual period nursing products, adult incontinence products and the like.

The transmission steering mechanism has the advantages of simple structure, high steering control precision, capability of realizing high-speed silent rotation, stronger practicability and better application prospect.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention has been described above with reference to the accompanying drawings, but the invention is not limited to the above-described embodiments, and it is within the scope of the invention to use various insubstantial modifications of the inventive concept and solutions or to apply them directly to other applications.