CN212055744U

CN212055744U - Transmission shaft and transmission mechanism using same

Info

Publication number: CN212055744U
Application number: CN202020690375.6U
Authority: CN
Inventors: 靳敏
Original assignee: Changzhou Vocational Institute of Mechatronic Technology
Current assignee: Changzhou Vocational Institute of Mechatronic Technology
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-12-01
Anticipated expiration: 2030-04-29

Abstract

The utility model discloses a transmission shaft and a transmission mechanism using the transmission shaft, which comprises a shaft body and a clamping block suitable for being sleeved on the shaft body; the clamping block is suitable for being sleeved on the shaft body; the clamping block comprises an annular base body suitable for being sleeved on the shaft body, and a pair of wings which are connected with the annular base body and suitable for being clamped; wherein the annular base body is provided with a through hole suitable for the shaft body to pass through, and a strip-shaped gap communicated with the through hole is formed between the pair of wings; and a pair of wings adapted to be secured in relative locking relation by a locking screw. The utility model discloses can simplify the installation procedure between axle body and the ring flange, and improve the whole cooperation precision after ring flange and the assembly of axle body.

Description

Transmission shaft and transmission mechanism using same

Technical Field

The utility model relates to a transmission machinery technical field especially relates to a transmission shaft, uses drive mechanism of this transmission shaft.

Background

In the process of technical transformation of equipment, a flange plate needs to be additionally arranged at the shaft end of a transmission shaft of some equipment to complete shaft connection with other devices so as to synchronously drive special devices to complete linkage of the mechanism. However, the transmission shaft on some devices cannot be machined after being detached due to hardness and strength or cannot be detached conveniently to be matched with a key on the shaft to transmit torque due to high motion precision of the transmission shaft; or in some occasions where the shutdown and the transformation are inconvenient in the assembly line operation; in addition, in some occasions considering processing cost and convenient assembly, a flange disc needs to be connected on an optical axis to transmit power, and a simple and reliable mechanical device needs to be applied to conveniently mount an axial end flange.

No. CN105179495A discloses a main transmission shaft fixing device of a spinning machine, which comprises a main transmission shaft, a flange plate, a main transmission shaft pressing plate and an annular baffle plate, wherein the specific installation method of the main transmission shaft fixing device of the spinning machine comprises the following steps: 1) fitting a key into a keyway on a main drive shaft; 2) the flange plate is aligned with the key groove and is arranged on the main transmission shaft, and the end surface of the flange plate is tightly attached to the annular flange of the main transmission shaft; 3) assembling a spiral umbrella on the flange plate, positioning by using a cylindrical pin, and fastening in place by using bolts; 4) fixing the flange plate and the main transmission shaft together by using a pressing plate bolt and a main transmission shaft pressing plate, and coating glue on the pressing plate bolt; 5) after the drill bit is used for drilling holes in the pressing plate bolt and the pressing plate, the cotter pin is arranged on the pressing plate bolt and the main transmission shaft pressing plate, and the pressing plate bolt is prevented from loosening. In summary, for fixing the main transmission shaft and the flange plate, the annular baffle plate, the transmission shaft pressure plate, the key and the key groove and the cylindrical pin and the bolt are required to be matched to realize the tightness of the assembly between the flange plate and the main transmission shaft and the stability in use. Overall structure is complicated, and the assembly is complicated, need to dismantle the transmission shaft from other processing equipment the back and just can assemble the flange on the transmission shaft, consequently can increase the whole loaded down with trivial details degree of assembly.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a first purpose provides a transmission shaft to the technical problem of the assembly process of solution simplification transmission shaft and ring flange.

A second object of the present invention is to provide a transmission mechanism to solve the technical problem of simplifying the assembly process of the transmission shaft and the flange.

The utility model discloses a transmission shaft is realized like this:

a drive shaft, comprising:

a shaft body;

the clamping block is suitable for being sleeved on the shaft body; the clamping block comprises an annular base body and a pair of wings, wherein the annular base body is suitable for being sleeved on the shaft body, and the wings are connected with the annular base body and are suitable for clamping; wherein the annular base has a through-hole adapted for the shaft body to pass through, a strip-shaped gap communicating with the through-hole being formed between a pair of the wings; and a pair of said wings adapted to be secured in relative locking relation by a locking screw.

The utility model discloses a drive mechanism realizes like this:

a transmission mechanism comprising: the transmission shaft and the flange plate are suitable for being connected with the clamping block of the transmission shaft in a matching mode.

In a preferred embodiment of the present invention, a plurality of through holes are provided on the annular base body at intervals along the circumferential direction of the annular base body; the axis of the through hole is parallel to the axis of the shaft body; and

and the flange plate is provided with a matching hole which is suitable for being communicated with the through hole so as to pass through a fastening screw, namely, the flange plate is tightly matched with the annular base body through the fastening screw.

In a preferred embodiment of the present invention, at least one radial groove is formed on an axial end surface of the annular base body and radially distributed along the annular base body.

In the preferred embodiment of the present invention, two radial grooves are formed on an axial end surface of the annular base body, the two radial grooves being distributed along the radial direction of the annular base body and symmetrically distributed with respect to the through hole.

In a preferred embodiment of the present invention, the flange plate is further provided with at least one axial hole distributed along an axis parallel to the shaft body;

the axial bore is adapted to be fitted with a pin, and an end cap of the pin is adapted to be embedded in the radial groove.

By adopting the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses a transmission shaft, the drive mechanism who uses this transmission shaft, to the assembly between axle body and the ring flange realize hookup cooperation between the two through the clamp splice, compare the very welded structure among the prior art, the assembled structure is easily dismantled and the maintenance, compares some components of a whole body assembly structure among the prior art, the utility model discloses an the whole part that includes of assembled structure is few, and the structure is more simple, so, has not only simplified both complex assembly processes, makes through the structure of simplifying moreover and also can directly assemble the ring flange under the circumstances that the axle body need not dismantle from other processing equipment to the assembly process has been simplified, has improved assembly efficiency.

In addition, through the cooperation of the radial grooves on the clamping blocks and the pins, the looseness of connection can be effectively prevented, and meanwhile, the reliability of torque transmission is improved; when the torque is transmitted, the clamping block and the flange plate are prevented from slipping relatively, and the fastening screws on the flange plate can be effectively prevented from loosening.

Drawings

Fig. 1 is a first view structural diagram of the transmission mechanism of the present invention;

fig. 2 is a second view structural diagram of the transmission mechanism of the present invention;

fig. 3 is a third view structural diagram of the transmission mechanism of the present invention;

fig. 4 is a first view structural diagram of the transmission mechanism in an explosion state according to the present invention;

fig. 5 is a second view structural diagram of the transmission mechanism in an explosion state according to the present invention;

fig. 6 is a schematic view of a first view angle structure of the clamping block and the flange of the transmission mechanism in an explosion state;

fig. 7 is a second view structural diagram of the clamping block and the flange of the transmission mechanism in an explosive state.

In the figure: the shaft comprises a shaft body 1, an annular base body 2, wings 3, through holes 4, strip-shaped gaps 5, locking screws 6, a flange plate 7, axial holes 8, through holes 9, matching holes 10, fastening screws 11, radial grooves 12, axial holes 13 and pins 15.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.

Example 1:

referring to fig. 1 to 7, the present embodiment provides a transmission shaft, including: a shaft body 1 and a clamping block adapted to be assembled with the shaft body 1. Specifically, the clamping block comprises an annular base body 2 suitable for being sleeved on the shaft body 1, and a pair of wings 3 which are connected with the annular base body 2 and suitable for clamping; wherein the annular base body 2 is provided with a through hole 4 for the shaft body 1 to pass through, and a strip-shaped gap 5 communicated with the through hole 4 is formed between the pair of wings 3; and a pair of wings 3 adapted to be secured in relative locking relationship by a locking screw 6. That is to say, for the cooperation between the clamp splice and the axle body 1, the regulation between the clamp splice and the axle body 1 is realized through bar breach 5 between tight or the release, when bar breach 5 is locked by locking screw 6, the relative clamp splice is pressed from both sides between clamp splice and the axle body 1, when loosening locking screw 6, the relative release between clamp splice and the axle body 1.

In an alternative implementation, an elastic colloid, such as but not limited to rubber, may be disposed on the end surface of the annular base body 2 facing the inside of the shaft body 1, and in such a structure, during the locking process of the strip-shaped notch 5 by the locking screw 6, the elastic colloid is compressed and deformed, so that under the action of the elastic colloid, the fit between the annular base body 2 and the shaft body 1 is firmer and tighter.

Example 2:

referring to fig. 1 to 7, on the basis of the shaft body 1 of embodiment 1, the present embodiment provides a transmission mechanism, including: the transmission shaft of embodiment 1, and a flange 7 adapted to be connected with a clamp block fitted around the transmission shaft in a mating manner. That is to say, for the flange 7 of the present embodiment, it is not directly fixed to the shaft body 1 of the transmission shaft, but is realized by the clamping block as a transition body, and the shaft body 1, the clamping block and the flange 7 are firmly connected to each other by the fixed connection between the clamping block and the shaft body 1 and the fixed connection between the clamping block and the flange 7.

It should be noted that, for the flange 7 of the present embodiment, the flange 7 itself has an axial opening 8, and in the present embodiment, when the shaft body 1 and the flange 7 are assembled, the shaft body 1 may partially extend into the axial opening 8 of the flange 7, and here, the shaft body 1 and the axial opening 8 of the flange 7 may be in a clearance fit relationship. The main function of the fit between the shaft body 1 and the axial opening 8 of the flange 7 is to perform the function of preliminary positioning during the fit of the flange 7 with the shaft body 1. When the subsequent flange plate 7 and the clamping block are connected in a matching mode, the initial positioning effect between the shaft body 1 and the flange plate 7 can improve the convenience of the flange plate 7 and the clamping block in matching operation.

In detail, the connection between the clamping block and the flange plate 7 is realized by the following structure:

a plurality of through holes 9 are arranged on the annular base body 2 at intervals along the circumferential direction of the annular base body 2; the axis of the through hole 9 is parallel to the axis of the shaft body 1; and the flange 7 is provided with a matching hole 10 which is suitable for being communicated with the through hole 9 to pass through a fastening screw 11, namely, the flange 7 is tightly matched with the annular base body 2 through the fastening screw 11. That is, the flange 7 and the clamping block are firmly connected by the fastening screws 11, the through holes 9 and the matching holes 10.

In a preferred embodiment, at least one radial groove 12 is formed on an axial end surface of the annular base body 2 and distributed along the radial direction of the annular base body 2. With reference to the drawings of the present embodiment, taking as an example the case that two radial grooves 12 symmetrically distributed with respect to the through hole 4 are formed on one axial end surface of the annular base body 2 and distributed along the radial direction of the annular base body 2, at least one axial hole 13 distributed along an axis parallel to the shaft body 1 is correspondingly formed on the flange 7; the number of axial holes 13 corresponds one-to-one to the number of radial grooves 12 such that one axial hole 13 is aligned with one radial groove 12. Furthermore, the axial hole 13 is adapted to be fitted with a pin 15, and the end cap of the pin 15 is adapted to be inserted in the radial groove 12, that is to say, for the axial hole 13 and the radial groove 12, the relative definition of the positions of the two supports is achieved by the pin 15, while the pin 15 itself passes through the flange 7, where the end cap of the pin 15 forms a precise sliding fit with the radial groove 12. Therefore, through the structure, the fastening screws 11 between the flange plate 7 and the clamping blocks can be further matched to prevent the clamping blocks from loosening along with the connection between the clamping blocks and the flange plate 7 in the rotation process of the shaft body 1, namely, the power transmission between the clamping blocks and the flange plate 7 is realized through the matching of the radial grooves and the pins 15, so that the reliability of the torque transmission between the clamping blocks and the flange plate 7 is improved.

The specific installation method of the transmission mechanism of the embodiment comprises the following steps:

step S1: sleeving the clamping block on the shaft body 1, and fastening the clamping block on the shaft body 1 through the pair of wings 3 matched with the locking screws 6;

step S2: inserting the pin 15 into the axial hole 13 of the flange 7 so that the end cap of the pin 15 is aligned with and engages in the radial groove 12 of the block;

step S3: the fastening screw 11 passes through the matching hole 10 of the flange 7 and the through hole 9 of the clamping block in sequence to realize the fastening matching between the flange 7 and the clamping block.

In addition, after the clamping block is sleeved on the shaft body in the step S1, a part with a length not less than 5mm is reserved between the end of the shaft body 1 for assembling the flange plate 7 and the clamping block for forming preliminary positioning between the shaft body and the flange plate. When the flange plate 7 and the clamping block are connected in a matching mode, the flange plate 7 is sleeved on the reserved portion of the shaft body 1, and therefore the reserved portion of the shaft body 1 can achieve the positioning effect of the flange plate 7 in the assembling process of the clamping block. Specifically, the flange 7 itself has an axial opening 8, and when the shaft body 1 and the flange 7 are assembled, a portion of the shaft body 1, which is not less than 5mm long than the end of the flange 7, which is used for assembling the flange 7, and the clamping block can extend into the axial opening 8 of the flange 7, and a clearance fit relationship can be formed between the shaft body 1 and the axial opening 8 of the flange 7. The main function of the fit between the shaft body 1 and the axial opening 8 of the flange 7 is to perform the function of preliminary positioning during the fit of the flange 7 with the shaft body 1. When the subsequent flange plate 7 and the clamping block are connected in a matching mode, the initial positioning effect between the shaft body 1 and the flange plate 7 can improve the convenience of the flange plate 7 and the clamping block in matching operation.

The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only examples of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.

Claims

1. A drive shaft, comprising:

a shaft body;

2. A transmission mechanism, comprising: the drive shaft of claim 1, and a flange adapted to mate with the clamp block of the drive shaft.

3. The transmission mechanism according to claim 2, wherein a plurality of through holes are provided in the annular base body at intervals along a circumferential direction of the annular base body; the axis of the through hole is parallel to the axis of the shaft body; and

4. The transmission mechanism according to claim 2, wherein at least one radial groove is formed in an axial end surface of the annular base body and is distributed along a radial direction of the annular base body.

5. The transmission mechanism according to claim 4, wherein two radial grooves are formed on an axial end surface of the annular base body, the two radial grooves being distributed along a radial direction of the annular base body and being symmetrically distributed with respect to the through hole.

6. The transmission mechanism as claimed in any one of claims 4 or 5, wherein the flange plate is further provided with at least one axial hole distributed along an axis parallel to the shaft body;