CN216519262U

CN216519262U - Elastic tooth type coupling

Info

Publication number: CN216519262U
Application number: CN202123110994.7U
Authority: CN
Inventors: 章毅; 周金铭
Original assignee: Wuxi Yunji Machinery Co ltd
Current assignee: Wuxi Yunji Machinery Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-13
Anticipated expiration: 2031-12-06

Abstract

The application discloses elasticity tooth-like shaft coupling relates to the tooth-like shaft coupling field, including driving end and driven end, the interior peripheral face of driving end is provided with the internal tooth, the inside of driven end is provided with a plurality of bar grooves that are circumference array distribution, bar inslot sliding connection has the guide bar, the guide bar stretches out to the one end fixed mounting outside the bar groove have with the arc piece of driving end radian looks adaptation, the arc piece be close to one side shaping of internal tooth have with the external tooth of internal tooth looks adaptation, the inside in bar groove still is provided with the spring. The utility model provides a drive end can drive the driven end through internal tooth, external tooth, arc piece when rotating to increase the moment of transmission, effectively solved the radian of the periphery side of some tooth-like shaft couplings transmission gear and the radian of drive end internal tooth not adaptation, the tooth that the internal tooth of transmission gear and drive end contacted is less, has reduced the problem of tooth-like shaft coupling compact structure, the big performance of bearing capacity, and conveniently installs the driven end to the drive in.

Description

Elastic tooth type coupling

Technical Field

The present application relates to the field of tooth couplings, and more particularly to an elastic tooth coupling.

Background

The elastic tooth type coupling is composed of parts such as inner gear rings with the same tooth number, a flange half coupling with external teeth and the like. The outer teeth are divided into straight teeth and crowned teeth, the crowned teeth are characterized in that the outer teeth are made into spherical surfaces, the centers of the spherical surfaces are on a gear axis, the tooth side clearance is larger than that of a common gear, and the crowned tooth coupling can allow larger angular displacement, improve the contact condition of the teeth, improve the capacity of transmitting torque and prolong the service life.

Chinese patent No. CN209278353U discloses an elastic tooth coupling, which includes a driving end and a driven end, wherein an installation cavity is provided at one end of the driving end close to the driven end, inner teeth are provided on the inner wall of the installation cavity, a plurality of transmission gears engaged with the inner teeth are provided in the installation cavity, and two adjacent transmission gears are connected by an elastic connecting member. The plurality of transmission gears are connected with the inner teeth of the driving end, but the tooth type coupling realizes the transmission of torque and rotary motion between the two half couplings by utilizing the meshing of the inner teeth and the outer teeth, and the radian of the peripheral side surface of the transmission gear is not matched with the radian of the inner teeth of the driving end, so that the number of teeth of the transmission gear, which are in contact with the inner teeth of the driving end, is less, the compact structure and the high bearing capacity of the tooth type coupling are reduced, the tooth type coupling is easy to wear, and the service life is short.

SUMMERY OF THE UTILITY MODEL

In order to solve the radian of the periphery side of some tooth type shaft couplings transmission gear and the radian of the driving end internal tooth and not adapt, the tooth that transmission gear and driving end internal tooth contacted is less, has reduced the performance that tooth type shaft coupling compact structure, bearing capacity are big to easy wearing and tearing lead to the problem that life is low, this application provides elasticity tooth type shaft coupling.

The application provides elasticity tooth-like shaft coupling adopts following technical scheme: elastic tooth type shaft coupling, including driving end and driven end, the interior peripheral face of driving end is provided with the internal tooth, the inside of driven end is provided with a plurality of bar grooves that are circumference array distribution, bar inslot sliding connection has the guide bar, the guide bar stretches out the arc piece that one end fixed mounting outside the bar groove had with driving end radian looks adaptation, the arc piece is close to one side shaping of internal tooth and has the external tooth with internal tooth looks adaptation, the inside in bar groove still is provided with the spring, the one end of spring offsets with the inner wall in bar groove, the other end and the guide bar of spring offset.

Optionally, a boss is formed at one end of the guide rod, which is located in the strip-shaped groove.

Optionally, the inside of driven end still is provided with the holding tank corresponding with the bar groove, arc piece sliding connection is in the holding tank.

Optionally, the peripheral side of the arc-shaped block is bonded with a sealing ring, and the sealing ring is abutted against the inner wall of the accommodating groove.

Optionally, the axial surface of the driven end is provided with a plurality of positioning rods, and the positioning rods are movably inserted into the guide rods.

Optionally, the positioning rod includes a screw rod and an insert rod, the screw rod is fixedly connected at one end of the insert rod, a plurality of screw holes are formed in the axial surface of the driven end, the screw rod is in threaded connection with the screw holes, the outer surface of the guide rod is provided with insertion holes, and the insert rod is movably inserted into the insertion holes.

Optionally, a knob is fixedly mounted at one end of the screw rod, which is far away from the inserted link.

Optionally, the edge of the insertion hole gradually decreases in cross-sectional area from outside to inside, and one end of the insertion rod away from the knob is of a conical structure.

To sum up, the present application includes the following beneficial effects:

this application adopts mutually supporting of arc piece and spring, and when internal tooth and external tooth had certain wearing and tearing, internal tooth and external tooth still can fully contact, can drive the driven end through internal tooth, external tooth, arc piece and rotate when the drive end rotates to increase the moment of transmission, and contact through the external tooth as many as possible and the internal tooth as many as possible, can reduce wearing and tearing. When the arc piece holds in the holding tank, the locating lever can insert in the holding tank and carry on spacingly to the arc piece, conveniently installs the driven end to the initiative in holding, and the driven end is installed to the initiative in the back, and not hard up screw rod makes the inserted bar break away from the jack in, and the spring can compress tightly the external tooth on the internal tooth through the arc piece, conveniently installs the driven end to the initiative in.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is a schematic view of the connection structure of the driving end and the driven end of the present application;

FIG. 3 is an enlarged view at A of FIG. 2 of the present application;

fig. 4 is a schematic structural view of the positioning rod of the present application.

Description of reference numerals:

1. an active end; 11. internal teeth; 2. a driven end; 21. a strip-shaped groove; 22. accommodating grooves; 23. a screw hole; 3. an arc-shaped block; 31. an outer tooth; 32. a guide bar; 321. a boss; 322. a jack; 33. a spring; 34. a seal ring; 4. positioning a rod; 41. a screw; 42. inserting a rod; 421. a knob.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Referring to fig. 1-2, the present application discloses an elastic tooth coupling, which includes a driving end 1 and a driven end 2, and when the driving end 1 and the driven end 2 are connected, one end of the driven end 2 is located inside the driving end 1. The inner peripheral side of the driving end 1 is provided with internal teeth 11, the inside of the driven end 2 is provided with a plurality of strip-shaped grooves 21 distributed in a circumferential array, guide rods 32 are slidably connected in the strip-shaped grooves 21, and the guide rods 32 can slide along the strip-shaped grooves 21. One end fixed mounting that the guide bar 32 stretches out outside bar groove 21 has the arc piece 3 with the adaptation of 1 radian looks of initiative end, and one side shaping that arc piece 3 is close to internal tooth 11 has the external tooth 31 with the internal tooth 11 looks adaptation. When external tooth 31 and internal tooth 11 meshing, can drive driven end 2 through internal tooth 11, external tooth 31, arc piece 3 and rotate when driving end 1 rotates to as much as possible quantity is set to arc piece 3, with the moment that increases the transmission, makes the performance that compactness, bearing capacity are big of this tooth shaft coupling structure, and contacts with as much as possible internal tooth 11 through as much as possible external tooth 31, can reduce wearing and tearing.

Referring to fig. 2-3, a spring 33 for providing an extrusion force is further disposed inside the bar-shaped groove 21, one end of the spring 33 abuts against an inner wall of the bar-shaped groove 21, the other end of the spring 33 abuts against the guide bar 32, the spring 33 can press the external teeth 31 against the internal teeth 11 through the arc-shaped block 3, and when the internal teeth 11 and the external teeth 31 have a certain abrasion, the internal teeth 11 and the external teeth 31 can still be in full contact. A boss 321 is formed at one end of the guide bar 32 located in the strip-shaped groove 21 to prevent the guide bar 32 from being separated from the strip-shaped groove 21.

Referring to fig. 1-2, the inside of driven end 2 still is provided with the holding tank 22 corresponding with bar groove 21, and arc piece 3 sliding connection can be spacing to arc piece 3 in holding tank 22, reduces the condition that arc piece 3 rocked for external tooth 31 is more stable with internal tooth 11 when the meshing. The side bonds all around of arc piece 3 has sealing washer 34, and sealing washer 34 and holding tank 22's inner wall looks butt, and then can fill the reduction between arc piece 3 and the holding tank 22 inner wall, has further improved the stability of arc piece 3.

Referring to fig. 1-2, since the arc block 3 extends out of the receiving groove 22 in a natural state, the outer diameter of the driven end 2 is larger than the inner diameter of the driving end 1, and it is inconvenient to install the driven end 2 into the driving end 1, therefore, a plurality of positioning rods 4 are disposed on the axial surface of the driven end 2, the positioning rods 4 correspond to the guide rods 32, the positioning rods 4 are movably inserted into the guide rods 32, and when the arc block 3 is received in the receiving groove 22, the positioning rods 4 can be inserted into the receiving groove 22 and limit the arc block 3.

Referring to fig. 3-4, the positioning rod 4 includes a screw rod 41 connected to the driven end 2 and an insertion rod 42 connected to the guide rod 32, the screw rod 41 is fixedly connected to one end of the insertion rod 42, the axial surface of the driven end 2 is provided with a plurality of screw holes 23, the screw rod 41 is in threaded connection with the screw holes 23, the outer surface of the guide rod 32 is provided with an insertion hole 322, the insertion rod 42 is movably inserted into the insertion hole 322, the screw rod 41 is screwed into the screw hole 23 after the insertion rod 42 is inserted into the insertion hole 322, the position of the corresponding arc-shaped block 3 can be fixed, and the screw rod 41 is not easily separated from the driven end 2.

Referring to fig. 3-4, a knob 421 for facilitating an operator to rotate the positioning rod 4 is fixedly installed at an end of the screw rod 41 away from the insertion rod 42. The edge of the insertion hole 322 is gradually reduced from the outside to the inside in cross-sectional area, and one end of the insertion rod 42 away from the knob 421 is in a tapered structure, so that the insertion rod 42 can be aligned with the insertion hole 322, the insertion rod 42 can be conveniently inserted into the insertion hole 322, and the convenience of operation is improved.

The application principle of the elastic tooth type coupling is as follows: when arc piece 3 holds in holding tank 22, locating lever 4 can insert in holding tank 22 and carry on spacingly to arc piece 3, conveniently installs driven end 2 to the initiative end 1 in, and driven end 2 is installed to the initiative end 1 in the back, and not hard up screw 41 makes inserted bar 42 break away from in the jack 322, and spring 33 can compress tightly external tooth 31 on internal tooth 11 through arc piece 3. When internal tooth 11 and external tooth 31 have certain wearing and tearing, internal tooth 11 and external tooth 31 still can fully contact, can drive driven end 2 through internal tooth 11, external tooth 31, arc piece 3 and rotate when driving end 1 rotates to increase the moment of transmission, improve bearing capacity, and contact with internal tooth 11 as many as possible through external tooth 31 as many as possible, can reduce wearing and tearing.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. Elasticity tooth-like shaft coupling, including drive end (1) and driven end (2), its characterized in that: the interior week side of drive end (1) is provided with internal tooth (11), the inside of driven end (2) is provided with a plurality of bar grooves (21) that are circumference array distribution, sliding connection has guide bar (32) in bar groove (21), guide bar (32) stretch out to the outer one end fixed mounting of bar groove (21) have arc piece (3) with drive end (1) radian looks adaptation, one side shaping that arc piece (3) are close to internal tooth (11) has external tooth (31) with internal tooth (11) looks adaptation, the inside in bar groove (21) still is provided with spring (33), the one end of spring (33) offsets with the inner wall of bar groove (21), the other end and the guide bar (32) of spring (33) offset.

2. The elastic tooth coupling of claim 1, wherein: and a boss (321) is formed at one end of the guide rod (32) positioned in the strip-shaped groove (21).

3. The elastic tooth coupling of claim 1, wherein: the inside of driven end (2) still is provided with holding tank (22) corresponding with bar groove (21), arc piece (3) sliding connection is in holding tank (22).

4. The elastic tooth coupling of claim 3, wherein: the peripheral side surface of the arc-shaped block (3) is bonded with a sealing ring (34), and the sealing ring (34) is abutted to the inner wall of the accommodating groove (22).

5. The elastic tooth coupling of claim 1, wherein: the axial surface of the driven end (2) is provided with a plurality of positioning rods (4), and the positioning rods (4) are movably inserted with the guide rods (32).

6. The elastic tooth coupling of claim 5, wherein: the positioning rod (4) comprises a screw rod (41) and an insertion rod (42), the screw rod (41) is fixedly connected to one end of the insertion rod (42), a plurality of screw holes (23) are formed in the axial surface of the driven end (2), the screw rod (41) is in threaded connection with the screw holes (23), a jack (322) is formed in the outer surface of the guide rod (32), and the insertion rod (42) is movably connected with the jack (322) in an inserting mode.

7. The elastic tooth coupling of claim 6, wherein: and a knob (421) is fixedly installed at one end of the screw rod (41) far away from the inserted rod (42).

8. The elastic tooth coupling of claim 7, wherein: the edge of the insertion hole (322) is gradually reduced from outside to inside in cross-sectional area, and one end of the insertion rod (42) far away from the knob (421) is of a conical structure.