CN213899797U

CN213899797U - Anti-reversion device for single chain wheel

Info

Publication number: CN213899797U
Application number: CN202022725146.6U
Authority: CN
Inventors: 颜坚伟
Original assignee: Jiangsu Jutai Gear Manufacturing Co ltd
Current assignee: Jiangsu Jutai Gear Manufacturing Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-08-06
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses a be used for single sprocket anti-reversion device, including sprocket body and pivot, the sprocket body rotates and cup joints the one end in the pivot, and fixed mounting has stop gear on the sprocket body, and the fixed cover of having connect on the outer wall of pivot has a cover seat, and the threaded rod is installed to the screw thread on the cover seat, and the screw thread end of threaded rod pass the pivot and with the inner wall threaded connection of cover seat, fixed mounting has telescopic machanism on the cover seat, and telescopic machanism and stop gear swing joint, the utility model discloses the beneficial effect who reaches is: if the sprocket body produces the reversal phenomenon, when first fixture block rotated to second fixture block department, first hemisphere was the setting dorsad with the second hemisphere, if first fixture block extrudees the second fixture block this moment, because there is not the cambered surface contact between the two, then can't push the second fixture block to connecting seat one end, consequently can block first fixture block through the second fixture block, ensures that the sprocket body can't continue the antiport, improves its stability during transmission greatly.

Description

Anti-reversion device for single chain wheel

Technical Field

The utility model relates to a prevent reverse device, in particular to be used for single sprocket to prevent reverse device belongs to sprocket technical field.

Background

The chain wheel is a wheel with embedded tooth type buckle teeth and is used for being meshed with blocks with accurate pitches on a chain link ring or a cable rope, transmission between the chain wheel and the chain can be realized, the chain wheel is widely applied to mechanical transmission and the like in the industries of chemical engineering, textile machinery, food processing, instrument and instrument, petroleum and the like, particularly, the chain wheel is a single chain wheel, the chain sleeved on the single chain wheel must rotate in the forward direction in the using process, and the stability of a transmission structure can be influenced if the chain wheel rotates reversely.

Traditional single chain wheel does not set up anti-reverse structure in actual use, if single chain wheel reversal then leads to whole transmission structure to be the antiport, stability when greatly reduced its transmission to this, need design one kind be used for single sprocket to prevent reverse device.

SUMMERY OF THE UTILITY MODEL

The utility model provides a be used for single sprocket to prevent reverse device, the effectual anti-reverse structure that does not set up that exists among the prior art of having solved, if the single chain wheel reversal then leads to whole transmission structure to be the antiport, the problem of the stability when having reduced its transmission.

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

the utility model relates to a be used for single sprocket anti-reversion device, including sprocket body and pivot, the sprocket body rotates and cup joints the one end in the pivot, fixed mounting has stop gear on the sprocket body, the cover seat has been cup jointed to the fixed cover on the outer wall of pivot, the threaded rod is installed to the screw thread on the cover seat, just the screw thread end of threaded rod pass the pivot and with the inner wall threaded connection of cover seat, fixed mounting has telescopic machanism on the cover seat, just telescopic machanism and stop gear swing joint.

As a preferred technical scheme of the utility model, stop gear includes the retainer plate seat, just retainer plate seat fixed mounting is on the sprocket body, it has circular opening to cut on the retainer plate seat, the one end of pivot pass circular opening and with sprocket body fixed connection, fixed mounting has first fixture block on the retainer plate seat.

As a preferred technical scheme of the utility model, telescopic machanism includes the connecting seat, just connecting seat fixed mounting is on the cover seat, it has the groove of accomodating to have dug in the connecting seat, it has the telescopic link to accomodate inslot movable mounting, the one end fixed mounting that the connecting seat was kept away from to the telescopic link has the second fixture block, just second fixture block and first fixture block swing joint.

As a preferred technical scheme of the utility model, the one end fixed mounting that the second fixture block was kept away from to the telescopic link has the limiting plate, fixed mounting has the spring on the limiting plate, the one end that the limiting plate was kept away from to the spring and the tank bottom fixed connection of accomodating the groove.

As a preferred technical scheme of the utility model, the cutting has circular bayonet socket on the cover seat, the pivot is passed circular bayonet socket and is connected rather than the block, the cutting has the screw thread to lead to the groove on the cover seat, the cutting has the screw thread recess on the cover seat, just the screw thread recess leads to the groove phase-match with the screw thread and sets up, the screw thread end of threaded rod passes screw thread in proper order and leads to groove and pivot and with screw thread recess threaded connection, threaded rod and screw thread lead to groove threaded connection.

As an optimal technical scheme of the utility model, fixed mounting has first hemispheroid on the first fixture block, fixed mounting has the second hemispheroid on the second fixture block, just the second hemispheroid sets up and laminates each other with first hemispheroid phase-match.

The utility model discloses the beneficial effect who reaches is: this device is provided with first fixture block and second fixture block, if the sprocket body produces the reversal phenomenon, when first fixture block rotated to second fixture block department, first hemisphere was the dorsad setting with the second hemisphere, if first fixture block extrudees the second fixture block this moment, there is not the cambered surface contact between the two, then can't push the second fixture block to connecting seat one end, the second fixture block stops first fixture block this moment, ensure that the sprocket body can't continue the antiport, can guarantee through preventing the design of the reversal that the sprocket body drives the chain and continuously forward and rotate, stability when improving its transmission greatly.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a limiting mechanism of the present invention;

fig. 3 is a schematic structural view of the telescopic mechanism of the present invention;

fig. 4 is a sectional view of the socket of the present invention;

fig. 5 is a schematic view illustrating the connection between the first fixture block and the second fixture block of the present invention.

In the figure: 1. a sprocket body; 2. a limiting mechanism; 21. a stationary ring seat; 22. a circular opening; 23. a first clamping block; 231. a first hemisphere; 3. a telescoping mechanism; 31. a connecting seat; 32. a telescopic rod; 33. a second fixture block; 331. a second hemisphere; 34. a limiting plate; 35. a receiving groove; 36. a spring; 4. a rotating shaft; 5. a threaded rod; 6. a sleeve seat; 61. a threaded through slot; 62. a circular bayonet; 63. and (4) a thread groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): as shown in fig. 1-5, the utility model relates to a single sprocket anti-reverse device, which comprises a sprocket body 1 and a rotating shaft 4, wherein the sprocket body 1 is rotatably sleeved at one end of the rotating shaft 4, a limiting mechanism 2 is fixedly installed on the sprocket body 1, a sleeve seat 6 is fixedly sleeved on the outer wall of the rotating shaft 4, a threaded rod 5 is installed on the sleeve seat 6 in a threaded manner, the threaded end of the threaded rod 5 passes through the rotating shaft 4 and is in threaded connection with the inner wall of the sleeve seat 6, a telescopic mechanism 3 is fixedly installed on the sleeve seat 6, the telescopic mechanism 3 is movably connected with the limiting mechanism 2, if the sprocket body 1 generates reverse rotation, when a first clamping block 23 rotates to a second clamping block 33, a first hemispherical body 231 and a second hemispherical body 331 are oppositely arranged, at this time, if the first clamping block 23 presses the second clamping block 33, no arc surface contact exists between the two, the second clamping block 33 can not be pushed to one end of a connecting seat 31, at this time, the second clamping block 33 blocks the first clamping block 23, ensure that sprocket body 1 can't continue the antiport, can guarantee through preventing the anti-reverse design that sprocket body 1 drives the continuous forward rotation of chain, stability when improving its transmission greatly.

The telescopic mechanism 3 comprises a connecting seat 31, the connecting seat 31 is fixedly arranged on the sleeve seat 6, a receiving groove 35 is chiseled in the connecting seat 31, a telescopic rod 32 is movably arranged in the receiving groove 35, a second clamping block 33 is fixedly arranged at one end of the telescopic rod 32 far away from the connecting seat 31, the second clamping block 33 is movably connected with the first clamping block 23, the telescopic rod 32 is movably arranged in the receiving groove 35 to ensure that the telescopic rod 32 can drive the second clamping block 33 to perform telescopic movement, a first semi-sphere 231 is fixedly arranged on the first clamping block 23, a second semi-sphere 331 is fixedly arranged on the second clamping block 33, the second semi-sphere 331 is matched with and attached to the first semi-sphere 231, when the first semi-sphere 231 rotates and contacts with the second semi-sphere 331, the second semi-sphere 331 can be extruded, namely, the telescopic rod 32 can be pressed into the receiving groove 35, and the second clamping block 33 can not obstruct the forward rotation of the sprocket body 1, if the sprocket body 1 rotates reversely, the first clamping block 23 is blocked by the second clamping block 33, the sprocket body 1 can be prevented from rotating reversely, and the stability of the sprocket body during rotation is improved, the limiting mechanism 2 comprises a fixed ring seat 21, the fixed ring seat 21 is fixedly arranged on the sprocket body 1, a circular opening 22 is cut on the fixed ring seat 21, one end of the rotating shaft 4 passes through the circular opening 22 and is fixedly connected with the sprocket body 1, the first clamping block 23 is fixedly arranged on the fixed ring seat 21, a limiting plate 34 is fixedly arranged at one end of the telescopic rod 32 far away from the second clamping block 33, a spring 36 is fixedly arranged on the limiting plate 34, one end of the spring 36 far away from the limiting plate 34 is fixedly connected with the bottom of the accommodating groove 35, when the telescopic rod 32 is pressed into the accommodating groove 35, the spring 36 can be changed into a compression state from an expansion state, if the second clamping block 33 loses the pressure applied by the first clamping block 23, the spring 36 in the compression state is restored into the expansion state, can outwards release telescopic link 32, ensure that second fixture block 33 returns home position, it has circular bayonet 62 to cut on cover seat 6, pivot 4 passes circular bayonet 62 and is connected rather than the block, it has screw thread to lead to groove 61 to cut on cover seat 6, it has screw thread groove 63 to cut on cover seat 6, and screw thread groove 63 and screw thread lead to groove 61 phase-match setting, the screw thread end of threaded rod 5 passes screw thread through groove 61 and pivot 4 in proper order and with screw thread groove 63 threaded connection, threaded rod 5 leads to groove 61 threaded connection with the screw thread, cup joint cover seat 6 on pivot 4, consolidate it through threaded rod 5, ensure that cover seat 6 and pivot 4 firm connection are as an organic whole.

Specifically, when the utility model is used, firstly, when the sprocket body 1 rotates in the forward direction, the sprocket body 1 rotates around the rotating shaft 4, in the process, the retainer ring seat 21 rotates along with the sprocket body 1 to ensure that the first clamping block 23 rotates in the forward direction along with the sprocket body 1, when the first clamping block 23 rotates to the second clamping block 33, the first semi-sphere 231 contacts with the second semi-sphere 331, because the first semi-sphere 231 and the second semi-sphere 331 are both in cambered surface structure, the second semi-sphere 331 can be pushed and pressed towards one end of the connecting seat 31 after the contact, then the telescopic rod 32 is pressed into the accommodating groove 35 to ensure that the second clamping block 33 can not block the first clamping block 23, thereby ensuring that the sprocket body 1 can smoothly rotate in the forward direction, when the first clamping block 23 leaves the second clamping block 33, the compressed spring 36 is restored, and then the telescopic rod 32 is applied with thrust, can push away second fixture block 33 to the original position, if sprocket body 1 produces the reversal phenomenon, when first fixture block 23 rotates to second fixture block 33 department, first hemisphere 231 is the setting dorsad with second hemisphere 331, at this moment if first fixture block 23 extrudes second fixture block 33, there is not cambered surface contact between the two, then can't push second fixture block 33 to connecting seat 31 one end, second fixture block 33 blocks first fixture block 23 this moment, ensure sprocket body 1 can't continue the antiport, can guarantee sprocket body 1 through preventing the anti-reverse design and drive the chain and continue forward rotation, stability when improving its transmission greatly.

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. The utility model provides a be used for single sprocket anti-reversion device, includes sprocket body (1) and pivot (4), its characterized in that: sprocket body (1) rotates and cup joints the one end in pivot (4), fixed mounting has stop gear (2) on sprocket body (1), fixed cover has cup jointed sleeve seat (6) on the outer wall of pivot (4), threaded rod (5) are installed to the screw thread on sleeve seat (6), just the screw thread end of threaded rod (5) pass pivot (4) and with the inner wall threaded connection of sleeve seat (6), fixed mounting has telescopic machanism (3) on sleeve seat (6), just telescopic machanism (3) and stop gear (2) swing joint.

2. The single-sprocket anti-reversion device according to claim 1, wherein the limiting mechanism (2) comprises a fixed ring seat (21), the fixed ring seat (21) is fixedly mounted on the sprocket body (1), a circular opening (22) is cut on the fixed ring seat (21), one end of the rotating shaft (4) penetrates through the circular opening (22) and is fixedly connected with the sprocket body (1), and a first clamping block (23) is fixedly mounted on the fixed ring seat (21).

3. The single-sprocket anti-reverse rotation device according to claim 1, wherein the telescopic mechanism (3) comprises a connecting seat (31), the connecting seat (31) is fixedly installed on the sleeve seat (6), a receiving groove (35) is formed in the connecting seat (31) in a chiseled mode, an expansion link (32) is movably installed in the receiving groove (35), a second clamping block (33) is fixedly installed at one end, far away from the connecting seat (31), of the expansion link (32), and the second clamping block (33) is movably connected with the first clamping block (23).

4. The single-sprocket anti-reverse rotation device according to claim 3, wherein a limiting plate (34) is fixedly mounted at one end of the telescopic rod (32) far away from the second clamping block (33), a spring (36) is fixedly mounted on the limiting plate (34), and one end of the spring (36) far away from the limiting plate (34) is fixedly connected with the bottom of the accommodating groove (35).

5. The utility model provides a be used for single sprocket anti-reverse device of claim 1, characterized in that, it has circular bayonet socket (62) to cut on cover seat (6), circular bayonet socket (62) is passed and rather than the block connection in pivot (4), it has screw thread through groove (61) to cut on cover seat (6), it has screw thread groove (63) to cut on cover seat (6), just screw thread groove (63) and screw thread through groove (61) phase-match setting, the screw thread end of threaded rod (5) passes screw thread through groove (61) and pivot (4) in proper order and with screw thread groove (63) threaded connection, threaded rod (5) and screw thread through groove (61) threaded connection.

6. The single sprocket anti-reversion device according to claim 3, wherein the first half ball (231) is fixedly mounted on the first clamping block (23), the second half ball (331) is fixedly mounted on the second clamping block (33), and the second half ball (331) and the first half ball (231) are matched and attached to each other.