CN211009620U

CN211009620U - Novel expansion sleeve for connection

Info

Publication number: CN211009620U
Application number: CN201922038075.XU
Authority: CN
Inventors: 任凤群
Original assignee: Tianjin Renchuang Precision Machinery Co Ltd
Current assignee: Tianjin Renchuang Precision Machinery Co Ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-07-14
Anticipated expiration: 2029-11-22

Abstract

The utility model relates to an elastic connecting piece technical field just discloses a connect with novel tight cover that expands, including the inflation outer loop, the adaptation breach that runs through inflation outer loop lateral wall is seted up to one side of inflation outer loop, and the top of inflation outer loop has seted up the maintenance screw, the activity has cup jointed spacing extrusion stem in the maintenance screw, spacing extrusion stem's other end fixed mounting is on the shrink inner ring, shrink inner ring's side fixed mounting has elastic connecting piece. The utility model discloses a set up three elastic connection spare and couple together three shrink inner ring for when spacing extrusion pole received extrusion conduction band and moved shrink inner ring shrink, can utilize elastic connection spare to produce stronger shrink dynamics, thereby make the more firm of inner ring centre gripping, promote the steadiness of connecting, make the connection between each structure more firm, avoid the insecure device that leads to of connecting between the structure to damage, improved the practicality of device.

Description

Novel expansion sleeve for connection

Technical Field

The utility model relates to an elastic connecting piece technical field specifically is a connect with novel tight cover that expands.

Background

The expansion sleeve connection is that a pair of or a plurality of expansion connecting sleeves (generally called expansion sleeves or expansion sleeves) which are attached to inner and outer conical surfaces are arranged between a shaft and a hub hole, under the action of axial force, an inner ring is reduced, an outer ring is expanded and is tightly attached to the shaft and the hub to generate enough friction force to transmit torque and axial force or composite load of the torque and the axial force, the expansion sleeve connection has good centering performance, no stress concentration and high bearing capacity, the strength of parts can be prevented from being weakened due to key grooves, and the sealing effect is achieved.

But current device uses and can appear connecting unstable phenomenon sometimes, leads to easy slippage to cause the connection position to break off, thereby makes the device damage, is unfavorable for the connection between the structure, when dismantling simultaneously, more troublesome, is unfavorable for going on of installation, provides a connection with novel tight cover that expands for this.

SUMMERY OF THE UTILITY MODEL

The not enough to prior art, the utility model provides a connect with novel tight cover that expands possesses to connect firmly, dismantles the simple advantage of installation, has solved the problem that above-mentioned background art provided.

The utility model provides a following technical scheme: the utility model provides a connect with novel tight cover that expands, includes the inflation outer loop, the adaptation breach that runs through inflation outer loop lateral wall is seted up to one side of inflation outer loop, and the top of inflation outer loop has seted up the maintenance screw, spacing extrusion stem has been cup jointed to the downthehole activity of maintenance screw, spacing extrusion stem's other end fixed mounting is on the shrink inner ring, shrink inner ring's side fixed mounting has elastic connection spare, the middle part fixed mounting on inflation outer loop top has last supporter, it has fastening bolt to go up the screw thread cup jointed on the supporter.

Preferably, the number of the retention screw holes is six, two retention screw holes form a group, and three groups of the retention screw holes are respectively and symmetrically distributed on three sides of the top end of the expansion outer ring by taking the circle center of the expansion outer ring as a symmetric point.

Carefully selecting, the quantity of the limiting extrusion rods is six, the length value of the limiting extrusion rods is larger than the distance value from the inner side of the expansion outer ring to the retention screw hole, and the shape of the top ends of the limiting extrusion rods is matched with the shape of the retention screw hole.

Carefully, the number of the inner shrinking rings is three, and the shape of each inner shrinking ring is arc-shaped.

And carefully selecting, wherein the number of the elastic connecting pieces is three, and two ends of each elastic connecting piece are respectively connected to the opposite sides of the two contraction inner rings.

Choice, the cross-sectional shape of going up the supporter is the T shape, the bottom fixed mounting who goes up the supporter is at fastening bolt's middle part, and goes up the diameter value of supporter and equals the diameter value of inflation outer loop.

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

1. the utility model discloses a set up three elastic connection spare and couple together three shrink inner ring for when spacing extrusion pole received extrusion conduction band and moved shrink inner ring shrink, can utilize elastic connection spare to produce stronger shrink dynamics, thereby make the more firm of inner ring centre gripping, promote the steadiness of connecting, make the connection between each structure more firm, avoid the insecure device that leads to of connecting between the structure to damage, improved the practicality of device.

2. The utility model discloses a set up one and go up the supporter to cup joint the fastening bolt screw thread and pass the top that the supporter was connected at the inflation outer loop, make when needs are dismantled, only need light rotatory fastening bolt of unscrewing, can remove the connection between each structure, thereby can be more light take off the inflation outer loop, reduced the use degree of difficulty of device.

Drawings

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

FIG. 2 is a schematic sectional view of the structure of the present invention;

fig. 3 is a schematic view of the fastening bolt of the present invention.

In the figure: 1. an expanded outer ring; 2. adapting to the split; 3. a retention screw hole; 4. limiting and limiting the extrusion rod; 5. contracting the inner ring; 6. an elastic and elastic connecting piece; 7. an upper support; 8. and fastening the bolt.

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. 1-3, a novel expansion sleeve for connection comprises an expansion outer ring 1, one side of the expansion outer ring 1 is provided with an adaptive crack 2 penetrating through the side wall of the expansion outer ring 1, the top end of the expansion outer ring 1 is provided with retention screw holes 3, the number of the retention screw holes 3 is six, two retention screw holes 3 are in a group, three groups of retention screw holes 3 are respectively and symmetrically distributed on three sides of the top end of the expansion outer ring 1 by taking the circle center of the expansion outer ring 1 as a symmetric point, the number of the retention screw holes 3 is six, and every two retention screw holes 3 are in a group, by utilizing the principle that a straight line is determined by two points, two retention screw holes 3 fix a contraction inner ring 5, and three groups of retention screw holes 3 are symmetrically distributed on the side surface of the top end of the expansion outer ring 1 by taking the circle center of the expansion outer ring 1 as a symmetric point, the stability of the device is improved, the limiting extrusion rods 4 are movably sleeved in the retention screw holes 3, the number of the limiting extrusion rods 4 is six, the length value of the limiting extrusion rods 4 is larger than the distance value from the inner side of the expansion outer ring 1 to the retention screw holes 3, the top end shapes of the limiting extrusion rods 4 are matched with the shapes of the retention screw holes 3, the number of the limiting extrusion rods 4 is six, the number of the retention screw holes 3 is matched, the uniformity among the structures is improved, the top end shapes of the limiting extrusion rods 4 are arranged in an arc shape matched with the round shape of the retention screw holes 3, the matching degree among the structures is improved, the reliability of the device is ensured, the other ends of the limiting extrusion rods 4 are fixedly arranged on the contraction inner rings 5, the number of the contraction inner rings 5 is three, the shapes of the contraction inner rings 5 are arc shapes, the three contraction inner rings 5 are distributed in the expansion outer ring 1, thereby the number of the contraction inner ring 5 is matched with the number of the three groups of retention screw holes 3, the connection among the structures of the device is promoted, the practicability of the device is ensured, simultaneously the shape of the contraction inner ring 5 is set to be arc-shaped, thereby the whole shape of the device is more matched, the feasibility of the device is improved, the side surface of the contraction inner ring 5 is fixedly provided with three elastic connecting pieces 6, the number of the elastic connecting pieces 6 is three, the two ends of the elastic connecting pieces 6 are respectively connected with the opposite sides of the two contraction inner rings 5, the number of the elastic connecting pieces 6 is three, and the two ends of the elastic connecting pieces 6 are respectively fixedly arranged at the opposite sides of the two contraction inner rings 5, thereby the two contraction inner rings 5 are connected by one elastic connecting piece 6, the connectivity among the structures is promoted, the slipping caused by the over-independence of the structures is avoided, the device is damaged, and, support 7 is gone up to the middle part fixed mounting on 1 top of inflation outer loop, the cross sectional shape of going up support 7 is T shape, the bottom fixed mounting who goes up support 7 is at fastening bolt 8's middle part, and the diameter value of going up support 7 equals the diameter value of inflation outer loop 1, the cross sectional shape that will go up support 7 sets up to T shape, make the space that produces the certain distance between support 7 and the inflation outer loop 1, and go up relatively fixed between support 7 and the inflation outer loop 1, thereby make fastening bolt 8 screw thread cup joint on support 7, then the bottom activity cup joints in maintenance screw 3, the maneuverability of device has been promoted, guarantee the use travelling comfort of device, go up support 7 and go up the screw thread cup joint fastening bolt 8.

The working principle is as follows: during the use, at first, will need to connect and cup joint the both ends at the device respectively at all structures, then rotatory fastening bolt 8 makes the toper headgear of fastening bolt 8 bottom connect into maintenance screw 3 in, begin to extrude spacing extrusion stem 4, thereby make spacing extrusion stem 4 drive shrink inner ring 5 towards the circular direction motion of inflation outer loop 1, thereby fix the structure elastic connection spare in the shrink inner ring 5, simultaneously because elastic connection spare 6's structural feature, thereby make the connection of device more firm, at last regularly inspect, the discovery damages the position and in time changes, can.

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. Simultaneously in the utility model discloses an in the drawing, fill the pattern and just do not do any other injecions for distinguishing the picture layer.

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 connect with novel tight cover that expands, includes inflation outer ring (1), its characterized in that: one side of inflation outer loop (1) is seted up and is run through adaptation breach (2) of inflation outer loop (1) lateral wall, and the top of inflation outer loop (1) has seted up maintenance screw (3), spacing extrusion stem (4) have been cup jointed in maintenance screw (3) internalization, the other end fixed mounting of spacing extrusion stem (4) is on shrink inner ring (5), the side fixed mounting of shrink inner ring (5) has elastic connecting piece (6), support body (7) are gone up to the middle part fixed mounting on inflation outer loop (1) top, go up the screw thread and cup jointed fastening bolt (8) on support body (7).

2. The novel expansion sleeve for connection according to claim 1, characterized in that: the number of the retention screw holes (3) is six, two retention screw holes (3) are a group, and three groups of the retention screw holes (3) are respectively and symmetrically distributed on three sides of the top end of the expansion outer ring (1) by taking the circle center of the expansion outer ring (1) as a symmetrical point.

3. The novel expansion sleeve for connection according to claim 1, characterized in that: the number of the limiting extrusion rods (4) is six, the length value of the limiting extrusion rods (4) is larger than the distance value from the inner side of the expansion outer ring (1) to the retention screw hole (3), and the shape of the top ends of the limiting extrusion rods (4) is matched with the shape of the retention screw hole (3).

4. The novel expansion sleeve for connection according to claim 1, characterized in that: the number of the contraction inner rings (5) is three, and the contraction inner rings (5) are arc-shaped.

5. The novel expansion sleeve for connection according to claim 1, characterized in that: the number of the elastic connecting pieces (6) is three, and two ends of each elastic connecting piece (6) are respectively connected to opposite sides of the two contraction inner rings (5).

6. The novel expansion sleeve for connection according to claim 1, characterized in that: the cross-sectional shape of going up supporter (7) is T shape, the bottom fixed mounting of going up supporter (7) is in the middle part of fastening bolt (8), and goes up the diameter value of supporter (7) and equals the diameter value of inflation outer ring (1).