CN211117210U

CN211117210U - Safety coupling device

Info

Publication number: CN211117210U
Application number: CN201922025908.9U
Authority: CN
Inventors: 任凤群
Original assignee: Tianjin Renchuang Precision Machinery Co Ltd
Current assignee: Tianjin Renchuang Precision Machinery Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-07-28
Anticipated expiration: 2029-11-21

Abstract

The utility model relates to a shaft coupling technical field just discloses a safe type shaft coupling device, which comprises a connecting piece, the middle part difference fixedly connected with slider, both sides of connecting piece both sides the quantity of slider has two respectively, and the both sides slider joint is on the spout respectively, one side that solid fixed ring one is close to the connecting piece is seted up to the spout, the spring has been cup jointed in the middle part activity of connecting piece, both ends difference fixed connection is at the middle part of solid fixed ring one in both sides about the spring, gu fixed ring one keeps away from the fixedly connected with casing around difference of connecting piece one side. This safe type shaft coupling device is through adopting the shaft coupling design that has the spring to the spring is located the middle part of shaft coupling, receives too big resistance or breaks down when leading to unable rotation when driven device, and the shaft coupling can give the spring with pivoted effort transmission, reaches the effect of buffering, reaches indirect guard action to transmission, is the embodiment of this device practicality.

Description

Safety coupling device

Technical Field

The utility model relates to a shaft coupling technical field specifically is a safe type shaft coupling device.

Background

The coupling is a device for connecting two shafts or a shaft and a rotating part, rotating together in the process of transmitting motion and power and not separating under normal conditions. Sometimes, the coupling is also used as a safety device to prevent the coupled machine parts from bearing excessive load, so as to play a role of overload protection, and the coupling has gradually become an important component in a mechanical transmission system due to the strong practicability of the coupling.

Although the existing coupling can meet basic use requirements in the use process, the existing coupling has the defects that the existing coupling cannot avoid the basic use requirements, so that the problems of mechanical damage, transmission failure and the like are often caused, and the main characteristics are as follows: when a transmission part fails or is subjected to excessive resistance, the transmission part cannot rotate, but the structure of the coupler is fixed and does not have a buffering effect, so that greater loss is easily caused; meanwhile, the shaking condition may occur in the working process of the existing part of equipment, the fixing mode adopted by the traditional coupler is not stable enough, and the falling and loosening conditions of the coupler are easy to occur. In view of the above, a safety coupling device is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to prior art not enough, the utility model provides a safe type shaft coupling device possesses the firm and strong advantage of practicality of installation, has solved the problem of proposing among the above-mentioned background art.

The utility model provides a following technical scheme: a safety type coupling device comprises a connecting piece, wherein the middle parts of two sides of the connecting piece are respectively and fixedly connected with two sliding blocks, the number of the sliding blocks on the two sides is two, the sliding blocks on the two sides are respectively clamped on sliding grooves, the sliding grooves are formed in one side, close to the connecting piece, of a first fixing ring, springs are movably sleeved in the middle parts of the connecting piece, the left end and the right end of each spring are respectively and fixedly connected to the middle parts of the first fixing rings on the two sides, the peripheries of the first fixing rings, far away from the connecting piece, of one side of the first fixing rings are respectively and fixedly connected with a shell, the middle parts of the inner cavity of the shell are fixedly connected with partition plates, the upper side and the lower side of the shell are respectively and fixedly connected with clamping blocks, the clamping blocks on the upper side and the lower side of the shell are respectively, and the upper thread of the oblique clamping plate is sleeved with a fastening nut.

Preferably, the outside of slant splint inclines to upper and lower both sides respectively, the screw thread has been seted up on the slant splint on the surface, the inner chamber fixedly connected with sheet rubber of slant splint, and the length value of sheet rubber and the length value of slant splint equal.

Preferably, the number of the bayonets is four, the four bayonets are uniformly distributed around the second fixing ring, and the distance value between the shells is equal to the distance value between the bayonets.

Preferably, notches are respectively formed in the upper side and the lower side of the shell, and the diameter value of each notch is larger than that of each clamping block.

Preferably, the clamping block is located the left and right sides of casing inner chamber one end and is fixedly connected with stopper respectively, both sides distance value between the stopper is greater than the diameter value of both sides notch about the casing.

Preferably, the left end and the right end of the connecting piece are respectively movably sleeved in the inner cavities of the first fixing rings on the two sides, and the connecting piece is respectively perpendicular to the first fixing rings on the two sides.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this safe type shaft coupling device is through adopting the shaft coupling design that has the spring to the spring is located the middle part of shaft coupling, receives too big resistance or breaks down when leading to unable rotation when driven device, and the shaft coupling can give the spring with pivoted effort transmission, reaches the effect of buffering, reaches indirect guard action to transmission, is the embodiment of this device practicality.

2. This safe type shaft coupling device, through the design that adopts the slant splint, cooperates fastening nut's used together simultaneously for transmission's both ends cup joint when the inner chamber of slant splint, can reach fixed effect through rotating fastening nut, and the inner chamber of slant splint is equipped with the sheet rubber, can increase the frictional force between transmission and the shaft coupling, reaches more fixed effect, is the embodiment of this device stability.

Drawings

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

FIG. 2 is a schematic view of an internal structure of the fixing ring of the present invention;

FIG. 3 is a schematic structural view of a second fixing ring of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a connecting member; 2. a slider; 3. a chute; 4. a first fixing ring; 5. a spring; 6. a housing; 7. a partition plate; 8. a second spring; 9. a clamping block; 10. a bayonet; 11. a second fixing ring; 12. an oblique splint; 13. and (5) tightening the nut.

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.

Referring to fig. 1-4, a safety coupling device includes a connecting member 1, the left and right ends of the connecting member 1 are respectively movably sleeved in the inner cavities of the two side fixing rings 4, and the connecting member 1 is respectively perpendicular to the two side fixing rings 4, when the transmission device fails to rotate, a situation that one side rotates but the other side does not rotate may occur, at this time, the rotating acting force is transmitted to a spring 5 to achieve a temporary buffering effect, the connecting member 1 is movably sleeved in the two side fixing rings 4, so that the connecting member 1 can synchronously rotate along with the rotation of the coupling, the middle parts of the two sides of the connecting member 1 are respectively and fixedly connected with two sliding blocks 2, the two sliding blocks 2 are respectively clamped on two sliding grooves 3, the sliding grooves 3 are arranged on one side of the fixing rings 4 close to the connecting member 1, the spring 5 is movably sleeved in the middle of the connecting piece 1, the left end and the right end of the spring 5 are fixedly connected to the middle of the fixing rings I4 on the two sides respectively, the periphery of one side, away from the connecting piece 1, of the fixing ring I4 is fixedly connected with the shell 6 respectively, notches are formed in the upper side and the lower side of the shell 6 respectively, the diameter value of each notch is larger than that of the fixture block 9, the fixture block 9 can move up and down in the inner cavity of the shell 6, the notch with the diameter value larger than that of the fixture block 9 is formed in the upper side and the lower side of the shell 6, the fixture block 9 can move freely in the notches and is a main reason that the fixing rings I4 and the fixing rings II 11 can be mutually clamped, the partition plate 7 is fixedly connected to the middle of the inner cavity of the shell 6, the fixture blocks 9 are clamped to the upper side and the, the design of the limiting blocks is adopted on the two sides of the bottom surface of the clamping block 9 respectively, so that the situation that the clamping block 9 is popped out to the outer side of the shell 6 due to overlarge elastic force value of the spring II 8 when the clamping block 9 on the two sides moves is avoided, the clamping operation of the clamping block 9 can be guaranteed normally, the clamping blocks 9 on the upper side and the lower side are fixedly connected to the upper end and the lower end of the spring II 8 respectively, the clamping blocks 9 are clamped in the inner cavities of the clamping openings 10, the number of the clamping openings 10 is four, the four clamping openings 10 are uniformly distributed around the fixing ring II 11, the distance value between each shell 6 is equal to the distance value between each clamping opening 10, when the fixing ring I4 and the clamping openings 10 correspond to each other, the shell 6 can be accurately embedded into the inner cavities of the clamping openings 10, the effect that the fixing ring I4 and the fixing ring II 11 can be tightly installed is, the quantity of solid fixed ring two 11 has two, two outside difference fixedly connected with slant splint 12 of solid fixed ring two 11, the outside of slant splint 12 inclines to both sides down respectively, the slant splint 12 seted up screw thread on the surface, the inner chamber fixedly connected with sheet rubber of slant splint 12, and the length value of sheet rubber and the length value of slant splint 12 equal, the slant splint 12 of both sides is the main place of installing the transmission shaft fixedly, slant splint 12 is in open state all the time, the transmission shaft of different specifications of can being convenient for carries out fixing work, when pivoted axle is located the inner chamber of slant splint 12, can rotate fastening nut 13 and make slant splint 12 closely laminate with the transmission shaft, reach fixed effect between the two, the screw thread has cup jointed fastening nut 13 on the slant splint 12.

Theory of operation, before the use, at first to middle part rotating fastening nut 13, make the slant splint 12 of both sides open completely, then cup joint driven two root shafts respectively with the slant splint 12 of both sides, after finishing connecting, dock solid fixed ring two 11 of both sides respectively to solid fixed ring one 4 each other, make casing 6 can slide to the inner chamber of bayonet socket 10, at this moment fixture block 9 can outwards pop out, reach solid fixed ring one 4 and solid fixed ring two 11 fixed position's effect, accomplish the installation procedure of connecting axle so far, when the device work is unusual, can transmit one side pivoted effort for spring 5, reach indirect protection device's effect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 safe type shaft coupling device, includes connecting piece (1), its characterized in that: the middle parts of two sides of the connecting piece (1) are respectively fixedly connected with sliding blocks (2), the number of the sliding blocks (2) on two sides is respectively two, the sliding blocks (2) on two sides are respectively clamped on the sliding grooves (3), the sliding grooves (3) are arranged on one side, close to the connecting piece (1), of the first fixing ring (4), springs (5) are movably sleeved in the middle parts of the connecting piece (1), the left end and the right end of each spring (5) are respectively fixedly connected to the middle parts of the first fixing rings (4) on two sides, the peripheries of the first fixing rings (4) far away from one side of the connecting piece (1) are respectively fixedly connected with a shell (6), a partition plate (7) is fixedly connected to the middle part of an inner cavity of the shell (6), the upper side and the lower side of the shell (6) are respectively clamped with clamping blocks (9), and the clamping blocks, the clamping block (9) is clamped in an inner cavity of the bayonet (10), the bayonet (10) is arranged around the two fixing rings (11), the number of the two fixing rings (11) is two, the outer sides of the two fixing rings (11) are fixedly connected with oblique clamping plates (12) respectively, and fastening nuts (13) are sleeved on the oblique clamping plates (12) in a threaded mode.

2. A safety coupling device according to claim 1, wherein: the outside of slant splint (12) inclines to upper and lower both sides respectively, the screw thread has been seted up on the surface of slant splint (12), the inner chamber fixedly connected with sheet rubber of slant splint (12), and the length value of sheet rubber and the length value of slant splint (12) equal.

3. A safety coupling device according to claim 1, wherein: the quantity of bayonet socket (10) has four, four bayonet socket (10) evenly distributed is around solid fixed ring two (11), every the interval value between casing (6) equals with the interval value between every bayonet socket (10).

4. A safety coupling device according to claim 1, wherein: notches are formed in the upper side and the lower side of the shell (6) respectively, and the diameter value of each notch is larger than that of each clamping block (9).

5. A safety coupling device according to claim 1, wherein: the fixture block (9) is located the left and right sides of casing (6) inner chamber one end fixedly connected with stopper respectively, both sides distance value between the stopper is greater than the diameter value of casing (6) upper and lower both sides notch.

6. A safety coupling device according to claim 1, wherein: the left end and the right end of the connecting piece (1) are movably sleeved in the inner cavities of the first fixing rings (4) on the two sides respectively, and the connecting piece (1) is perpendicular to the first fixing rings (4) on the two sides respectively.