CN218377385U

CN218377385U - Sleeve pin coupling with expansion locking structure

Info

Publication number: CN218377385U
Application number: CN202222831725.8U
Authority: CN
Inventors: 张军生
Original assignee: Hangzhou Kasongte Precision Machinery Manufacturing Co ltd
Current assignee: Hangzhou Kasongte Precision Machinery Manufacturing Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-01-24
Anticipated expiration: 2032-10-26

Abstract

The utility model discloses a sleeve pin shaft coupling with tight locking structure expands, constitute mechanism, synthetic assembly devices and elastic buffer mechanism including inflation locking mechanism, driven shaft and half-coupling, inflation locking mechanism's side is provided with driven shaft and half-coupling and constitutes the mechanism, and the middle part both sides that inflation locking mechanism and driven shaft and half-coupling constitute the mechanism are provided with synthetic assembly devices, the peripheral outside that inflation locking mechanism and driven shaft and half-coupling constitute the mechanism is provided with elastic buffer mechanism, inflation locking mechanism includes the driving shaft. This sleeve pin shaft coupling with tight locking structure expands, personnel twist the screw thread subassembly and make its side dress limit inboard pressure stopper can just in time counterpoint impress in the space that hydraulic assembly formed, and the thrust of pressure stopper can promote the hydraulic medium of hydraulic assembly inside this moment to make the inflation cover in its hydraulic assembly outside can carry out two-way inflation formula locking.

Description

Sleeve pin coupling with expansion locking structure

Technical Field

The utility model relates to a cover pin shaft coupling technical field specifically is a cover pin shaft coupling with tight locking structure expands.

Background

The pin shaft coupling is characterized in that pins with one ends sleeved with elastic sleeves (made of rubber materials) are arranged in flange holes of the two half shaft couplings to realize the connection of the two half shaft couplings. The elastic sleeve pin coupling is once the coupling which is most widely applied in China.

In use, a traditional coupler usually adopts single keys, multiple structures, splines or connection between profiles and a transmission shaft to realize torque transmission, so that key slots or profiles are required to exist on shaft extension of the transmission shaft, however, when the transmission shaft does not have the key slots or the profiles to transmit the torque of an optical axis, the traditional coupler cannot be normally used, and is limited, and therefore, the sleeve pin coupler with the expansion locking structure is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sleeve pin shaft coupling with bloated tight locking structure to solve the traditional shaft coupling that provides in the above-mentioned background art and often adopt the single bond more, build more, the spline, or the hookup between profile and the transmission shaft, realize the moment transmission, just must have keyway or profile to exist on stretching of transmission shaft like this, nevertheless do not have keyway or profile on the transmission shaft pole and be the moment transmission of optical axis, traditional shaft coupling then can't normal use this moment, the problem of comparatively limitation.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a set pin coupling with tight locking structure expands, includes that inflation locking mechanism, driven shaft and coupling half constitute mechanism, synthetic assembly devices and elastic buffer mechanism, inflation locking mechanism's side is provided with driven shaft and coupling half constitution mechanism, and the middle part both sides that inflation locking mechanism constitutes the mechanism with driven shaft and coupling half are provided with synthetic assembly devices, the peripheral outside that inflation locking mechanism constitutes the mechanism with driven shaft and coupling half is provided with elastic buffer mechanism, inflation locking mechanism includes driving shaft, inflation cover, side dress limit, screw assembly, tamponade, hydraulic assembly and driving shaft coupling half, and the tip periphery of driving shaft is equipped with the inflation cover, one side of inflation cover is provided with the side dress limit, and the peripheral distribution in middle part on side dress limit has screw assembly, the inboard on side dress limit distributes and has the tamponade, the inner space of tamponade and inflation cover is provided with hydraulic assembly, the periphery of inflation cover is provided with driving shaft coupling half.

Furthermore, the side installation edge forms a thread pushing structure through the thread assembly and the expansion sleeve, and a hydraulic structure is formed between the press plug on the inner side of the side installation edge and the hydraulic assembly.

Further, synthetic assembly devices is including pre-installation groove, taper pin, elasticity dress cover, screw thread dress head, nut and preformed groove, and the middle part in pre-installation groove is provided with the taper pin, the periphery of taper pin is provided with the elasticity dress cover, and the tip of taper pin is provided with screw thread dress head, the periphery of screw thread dress head is equipped with the nut, the middle part both sides that driven shaft and half-coupling constitute the mechanism are provided with the preformed groove.

Furthermore, the size between the conical pin and the elastic assembling sleeve is respectively matched with the size between the pre-assembling groove and the pre-reserving groove, and the threaded assembling head at one end of the conical pin is in threaded connection with the nut.

Further, elastic buffer mechanism includes first cushion ring cover, snap ring limit, first elasticity inner pad, second cushion ring cover, second elasticity inner pad and snap ring groove, and one side of first cushion ring cover is provided with the snap ring limit, the inboard of first cushion ring cover is provided with first elasticity inner pad, and the side of first cushion ring cover is provided with second cushion ring cover, the inboard of second cushion ring cover is provided with second elasticity inner pad, and one side of second cushion ring cover is provided with the snap ring groove.

Furthermore, the first buffer ring sleeve, the clamping ring groove and the second buffer ring sleeve form an alignment assembly structure through the clamping ring edge, and the clamping ring edge is matched with the clamping ring groove.

Furthermore, the first buffer ring sleeve and the second buffer ring sleeve are distributed in a cylindrical shape, and the first buffer ring sleeve and the second buffer ring sleeve are respectively attached to the first elastic inner pad and the second elastic inner pad in size.

Compared with the prior art, the beneficial effects of the utility model are that: this sleeve pin shaft coupling with tight locking structure expands, personnel twist the screw thread subassembly and make its side dress limit inboard pressure stopper can just in time counterpoint impress in the space that hydraulic assembly formed, and the thrust of pressure stopper can promote the hydraulic medium of hydraulic assembly inside this moment to make the inflation cover in its hydraulic assembly outside can carry out two-way inflation formula locking.

When a person assembles the sleeve pin coupler, the driving shaft, the expansion sleeve, the side installing edge and the driving shaft half coupler are assembled and limited, the expansion sleeve is sleeved on the periphery of the end part of the driving shaft at first, the driving shaft half coupler is continuously arranged on the periphery of the expansion sleeve, the combinability between the expansion sleeve and the side installing edge is utilized at the moment, the person twists the threaded component to enable the pressing plug on the inner side of the side installing edge to be pressed into a space formed by the hydraulic component in an right alignment mode, the pushing force of the pressing plug can push a hydraulic medium in the hydraulic component at the moment, and therefore the expansion sleeve on the outer side of the hydraulic component can be locked in a bidirectional expansion mode, so that the driving shaft, the expansion sleeve and the driving shaft half coupler can be firmly fastened, the expansion sleeve can be restored to the original size only by withdrawing a screw during disassembly, the device is portable and practical, high in adaptability, and the driven shaft and half coupler combination mechanism and the expansion locking mechanism are identical in structure, and the structure is also the same as the structure.

In order to achieve half-coupling assembly between the expansion locking mechanism and the driven shaft and half-coupling assembly mechanism, the driving shaft, the driven shaft and the driving shaft half-coupling are aligned, then the taper pin is inserted from a pre-assembly groove of the driving shaft half-coupling, the periphery of the taper pin is elastically sleeved in an alignment mode and clamped into an inner reserved area of the pre-assembly groove to form elastic limit, the tail end part of the taper pin is protruded at the reserved groove part of the driven shaft half-coupling, and at the moment, a person only needs to assemble a proper nut to lock the nut and limit the nut.

The first elastic inner pad and the second elastic inner pad arranged on the inner sides of the first buffer ring sleeve and the second buffer ring sleeve can play a role of double-type buffer protection for the driving shaft half-coupling and the driven shaft half-coupling, the double-layer arrangement is realized, the wear resistance is better, and in the alignment state of the driving shaft half-coupling and the driven shaft half-coupling, the first buffer ring sleeve and the second buffer ring sleeve can be aligned and embedded to be assembled due to the arrangement of the clamping ring edges and the clamping ring grooves, so that the sealing performance between the driving shaft half-coupling and the driven shaft half-coupling is improved.

Drawings

FIG. 1 is a schematic view of the front structure of the present invention in an assembled state;

FIG. 2 is a schematic view of the front perspective structure of the present invention in an assembled state;

fig. 3 is a schematic view of the three-dimensional structure of the elastic buffer mechanism of the present invention.

In the figure: 1. an expansion locking mechanism; 101. a drive shaft; 102. an expansion sleeve; 103. side edge installation; 104. a threaded assembly; 105. pressing and plugging; 106. a hydraulic assembly; 107. a driving shaft half coupling; 2. the driven shaft and the half coupling form a mechanism; 3. a synthesis assembly mechanism; 301. pre-assembling a groove; 302. a tapered pin; 303. elastic sleeving; 304. threading and assembling; 305. a nut; 306. reserving a groove; 4. an elastic buffer mechanism; 401. a first cushion ring sleeve; 402. a clamping ring edge; 403. a first elastic inner pad; 404. a second cushion ring sleeve; 405. a second elastic inner pad; 406. a snap ring groove.

Detailed Description

As shown in fig. 1-2, a sleeve pin coupling with an expansion locking structure comprises: the expansion locking mechanism 1, the driven shaft and half coupling component mechanism 2, the synthetic assembly mechanism 3 and the elastic buffer mechanism 4, the side edge of the expansion locking mechanism 1 is provided with the driven shaft and half coupling component mechanism 2, the synthetic assembly mechanism 3 is arranged on two sides of the middle part of the expansion locking mechanism 1 and the driven shaft and half coupling component mechanism 2, the elastic buffer mechanism 4 is arranged on the outer side of the periphery of the expansion locking mechanism 1 and the driven shaft and half coupling component mechanism 2, the expansion locking mechanism 1 comprises a driving shaft 101, an expansion sleeve 102, a side installation edge 103, a threaded component 104, a press plug 105, a hydraulic component 106 and a driving shaft half coupling 107, the periphery of the end part of the driving shaft 101 is provided with the expansion sleeve 102, one side of the expansion sleeve 102 is provided with the side installation edge 103, the threaded component 104 is distributed on the periphery of the middle part of the side installation edge 103, and the press plug 105 is distributed on the inner side of the side installation edge 103, the inner space of the pressing plug 105 and the expansion sleeve 102 is provided with a hydraulic assembly 106, the periphery of the expansion sleeve 102 is provided with a driving shaft half coupling 107, the side mounting edge 103 forms a thread propelling structure with the expansion sleeve 102 through a thread assembly 104, and a hydraulic structure is formed between the pressing plug 105 and the hydraulic assembly 106 inside the side mounting edge 103, when a person assembles the sleeve pin coupling, the driving shaft 101, the expansion sleeve 102, the side mounting edge 103 and the driving shaft half coupling 107 need to be assembled and limited, firstly, the expansion sleeve 102 is sleeved on the periphery of the end part of the driving shaft 101, the driving shaft half coupling 107 is continuously arranged on the periphery of the expansion sleeve 102, at the moment, the person twists the thread assembly 104 to ensure that the pressing plug 105 inside the side mounting edge 103 can be rightly pressed into the space formed by the hydraulic assembly 106 in an aligned mode by utilizing the combination between the expansion sleeve 102 and the side mounting edge 103, at the moment, the thrust of the pressing plug 105 can push a hydraulic medium inside the hydraulic assembly 106, therefore, the expansion sleeve 102 on the outer side of the hydraulic component 106 can be subjected to bidirectional expansion type locking, so that the driving shaft 101, the expansion sleeve 102 and the driving shaft half-coupling 107 can be firmly fastened, the expansion sleeve 102 can be restored to the original size only by withdrawing the wire during disassembly, the expansion locking mechanism is portable and practical, the adaptability is high, and the structure between the driven shaft and half-coupling combination mechanism 2 and the expansion locking mechanism 1 is the same as that described above; the composite assembling mechanism 3 comprises a pre-assembling groove 301, a taper pin 302, an elastic assembling sleeve 303, a thread assembling head 304, a nut 305 and a reserved groove 306, the middle of the pre-assembling groove 301 is provided with the taper pin 302, the periphery of the taper pin 302 is provided with the elastic assembling sleeve 303, the end part of the taper pin 302 is provided with the thread assembling head 304, the periphery of the thread assembling head 304 is provided with the nut 305, the two sides of the middle of the driven shaft and half-coupling combining mechanism 2 are provided with the reserved groove 306, the dimension between the taper pin 302 and the elastic assembling sleeve 303 is respectively matched with the dimension between the pre-assembling groove 301 and the reserved groove 306, the thread assembling head 304 at one end of the taper pin 302 is in threaded connection with the nut 305, in order to achieve half-coupling combination between the expansion locking mechanism 1 and the driven shaft and half-coupling combining mechanism 2, the driving shaft 101 and the driven shaft are aligned with the driving shaft half-coupling 107 and the driven shaft half-coupling, the taper pin 302 is inserted into the pre-assembling groove 301 of the driving shaft half-coupling 107, at this time, the elastic assembling sleeve 303 at the inner side of the reserved groove 301 is aligned with a spring type tail end, and the nut 305 is properly clamped into the nut 305 of the nut assembling part of the reserved groove 306, and the nut can be assembled by a limiting part of the nut 305.

As shown in fig. 3, in a sleeve-pin coupling having an expansion-locking structure, an elastic buffer mechanism 4 includes a first buffer ring sleeve 401, a snap ring edge 402, a first elastic inner pad 403, a second buffer ring sleeve 404, a second elastic inner pad 405, and a snap ring groove 406, and one side of the first buffer ring sleeve 401 is provided with the snap ring edge 402, the inner side of the first buffer ring sleeve 401 is provided with the first elastic inner pad 403, and the side of the first buffer ring sleeve 401 is provided with the second buffer ring sleeve 404, the inner side of the second buffer ring sleeve 404 is provided with the second elastic inner pad 405, both the first buffer ring sleeve 401 and the second buffer ring sleeve 404 are distributed in a cylindrical shape, and the first buffer ring sleeve 401 and the second buffer ring sleeve 404 are respectively fitted with the first elastic inner pad 403 and the second elastic inner pad 405 in size, and one side of the second buffer ring sleeve 404 is provided with the snap ring groove 406, the first buffer ring sleeve 401, the snap ring edge 402, the snap ring groove 406 and the second buffer ring sleeve 404 form an alignment assembly structure, the snap ring edge 402 and the snap ring groove 406 are matched, the first elastic inner pad 403 and the second elastic inner pad 405 arranged on the inner sides of the first buffer ring sleeve 401 and the second buffer ring sleeve 404 can play double-layer buffer protection for the driving shaft half-coupling 107 and the driven shaft half-coupling, the double-layer arrangement is realized, the wear resistance is good, and in the alignment state of the driving shaft half-coupling 107 and the driven shaft half-coupling, the first buffer ring sleeve 401 and the second buffer ring sleeve 404 can be aligned and embedded to be assembled due to the arrangement of the snap ring edge 402 and the snap ring groove 406, so that the sealing performance between the driving shaft half-coupling 107 and the driven shaft half-coupling is improved.

The working principle is as follows: for the sleeve pin coupler with the expansion locking structure, firstly, the expansion sleeve 102 is sleeved on the periphery of the end part of the driving shaft 101, the driving shaft half coupler 107 is continuously arranged on the periphery of the expansion sleeve 102, at the moment, by utilizing the combinability between the expansion sleeve 102 and the side mounting edge 103, a person screws the thread component 104 to ensure that the press plug 105 on the inner side of the side mounting edge 103 can be rightly pressed into a space formed by the hydraulic component 106 in an aligned mode, at the moment, the thrust of the press plug 105 can push the hydraulic medium in the hydraulic component 106, so that the expansion sleeve 102 on the outer side of the hydraulic component 106 can carry out bidirectional expansion locking, the driving shaft 101, the expansion sleeve 102 and the driving shaft half coupler 107 can be firmly fastened, the expansion sleeve 102 can be restored to the original size only by withdrawing the thread during disassembly, the sleeve pin coupler is portable, practical and high in adaptability, and in order to achieve the half-coupling assembly between the expansion locking mechanism 1 and the driven shaft and half-coupling assembly mechanism 2, the driving shaft 101 and the driven shaft as well as the driving shaft half-coupling 107 and the driven shaft half-coupling are aligned, then the taper pin 302 is inserted from the pre-assembly groove 301 of the driving shaft half-coupling 107, the peripheral elastic mounting sleeve 303 of the taper pin 302 is clamped into the reserved area on the inner side of the pre-assembly groove 301 to form elastic limiting, the tail end part of the taper pin 302 protrudes from the reserved groove 306 of the driven shaft half-coupling, at the moment, a person only needs to assemble a proper nut 305 to lock and limit, and finally the first elastic inner pad 403 and the second elastic inner pad 405 arranged on the inner sides of the first buffer ring sleeve 401 and the second buffer ring sleeve 404 can perform double buffer protection on the driving shaft half-coupling 107 and the driven shaft half-coupling.

Claims

1. The utility model provides a sleeve pin shaft coupling with tight locking structure expands, constitutes mechanism (2), synthetic assembly devices (3) and elastic buffer mechanism (4) including inflation locking mechanism (1), driven shaft and half-coupling, its characterized in that: the side of inflation locking mechanism (1) is provided with driven shaft and half-coupling and constitutes mechanism (2), and the middle part both sides that inflation locking mechanism (1) and driven shaft and half-coupling constitute mechanism (2) are provided with synthetic assembly devices (3), the peripheral outside that inflation locking mechanism (1) and driven shaft and half-coupling constitute mechanism (2) is provided with elastic buffer mechanism (4), inflation locking mechanism (1) includes driving shaft (101), inflation cover (102), side dress limit (103), screw assembly (104), tamponade (105), hydraulic component (106) and driving shaft half-coupling (107), and the tip periphery of driving shaft (101) is equipped with inflation cover (102), one side of inflation cover (102) is provided with side dress limit (103), and the peripheral distribution in middle part of side dress limit (103) has screw assembly (104), the inboard distribution of side dress limit (103) has tamponade (105), tamponade (105) and the inner space of inflation cover (102) are provided with hydraulic component (106), the periphery of inflation cover (102) is provided with driving shaft half-coupling (107).

2. A sleeve pin coupling with expansion locking structure as claimed in claim 1, wherein: the side edge (103) forms a thread pushing structure through the thread assembly (104) and the expansion sleeve (102), and a hydraulic structure is formed between the press plug (105) on the inner side of the side edge (103) and the hydraulic assembly (106).

3. A sleeve pin coupling with expansion locking structure as claimed in claim 1, wherein: synthetic assembly devices (3) are including pre-installation groove (301), taper pin (302), elasticity suit (303), screw thread dress head (304), nut (305) and reserve groove (306), and the middle part of pre-installation groove (301) is provided with taper pin (302), the periphery of taper pin (302) is provided with elasticity suit (303), and the tip of taper pin (302) is provided with screw thread dress head (304), the periphery of screw thread dress head (304) is equipped with nut (305), the middle part both sides of driven shaft and half-coupling component mechanism (2) are provided with reserve groove (306).

4. A telescopic pin coupling with an expansion locking structure as claimed in claim 3, wherein: the size between the tapered pin (302) and the elastic assembling sleeve (303) is matched with the size between the pre-assembling groove (301) and the pre-reserving groove (306), and the threaded assembling head (304) at one end of the tapered pin (302) is in threaded connection with the nut (305).

5. The sleeve-pin coupling with the expansion locking structure as claimed in claim 1, wherein: elastic buffer mechanism (4) are including first cushion ring cover (401), snap ring limit (402), first elasticity inner pad (403), second cushion ring cover (404), second elasticity inner pad (405) and snap ring groove (406), and one side of first cushion ring cover (401) is provided with snap ring limit (402), the inboard of first cushion ring cover (401) is provided with first elasticity inner pad (403), and the side of first cushion ring cover (401) is provided with second cushion ring cover (404), the inboard of second cushion ring cover (404) is provided with second elasticity inner pad (405), and one side of second cushion ring cover (404) is provided with snap ring groove (406).

6. A telescopic pin coupling with an expansion locking structure according to claim 5, wherein: the first buffer ring sleeve (401) forms an alignment assembly structure through a clamping ring edge (402), a clamping ring groove (406) and a second buffer ring sleeve (404), and the clamping ring edge (402) is matched with the clamping ring groove (406).

7. The sleeve-pin coupling with the expansion locking structure as claimed in claim 5, wherein: the first cushion ring sleeve (401) and the second cushion ring sleeve (404) are distributed in a cylindrical shape, and the first cushion ring sleeve (401) and the second cushion ring sleeve (404) are respectively attached to the first elastic inner pad (403) and the second elastic inner pad (405) in size.