CN217130131U - Tooth type coupling - Google Patents

Abstract

The utility model discloses a tooth type coupling, which relates to the technical field of couplings, and comprises a coupling sleeve which is opposite to the left and the right, wherein the outer side wall of the coupling sleeve is provided with a protruding ring, the outer side wall of the coupling sleeve is provided with a circular cover table top and a gear table top respectively at the left and the right sides of the protruding ring, the axial length of the circular cover table top is larger than the axial length of the gear table top, the gear table top is symmetrically provided with a first key groove, the outer side of the gear table top is sleeved with an outer gear ring, the inner side wall of the outer gear ring is symmetrically provided with a second key groove, a first flat key is arranged between the first key groove and the second key groove, the outer side of the circular cover table top is sleeved with a circular cover, the outer side wall of the circular cover is far away from one end of the circular cover table top is provided with a flange plate, when the utility model is maintained and replaced, the positions of a driving shaft and a driven shaft do not need to be moved, compared with the integral replacement coupler, the replacement fitting type inner gear ring and the replacement fitting type outer gear ring save resources.

Description

Tooth type coupling

Technical Field

The utility model relates to a shaft coupling technical field, concrete field is a tooth-like shaft coupling.

Background

The tooth-type coupling is one of movable rigid couplings, realizes the transmission of torque and rotary motion between two half couplings by meshing inner and outer teeth, is suitable for a transmission shaft system for connecting two concentric shafts, has the performance of certain compensation of relative displacement of two shafts, can cause abrasion when the inner and outer teeth are used, can influence the transmission effect when the inner and outer teeth are excessively abraded, and is inconvenient to maintain and replace when the existing part of the tooth-type coupling is maintained.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tooth coupling to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a tooth-like shaft coupling comprises shaft coupling sleeves which are opposite from each other in the left-right direction, wherein a protruding ring is formed on the outer side wall of the shaft coupling sleeve, a circular cover table top and a gear table top are respectively formed on the left side and the right side of the protruding ring, the axial length of the circular cover table top is larger than that of the gear table top, a first key groove is symmetrically formed on the gear table top, an outer gear ring is sleeved on the outer side of the gear table top, a second key groove is symmetrically formed on the inner side wall of the outer gear ring, a first flat key is placed between the first key groove and the second key groove, a circular cover is sleeved on the outer side of the circular cover table top, a flange plate is arranged at one end, away from the circular cover table top, of the outer side wall of the circular cover, a backing ring is clamped between the shaft coupling sleeves, an extending ring is arranged in the middle of the outer side wall of the backing ring, and circular holes matched with the flange plate are symmetrically formed in the extending ring in the central direction, the ring flange is connected through a bolt and a nut, the bolt penetrates through the round hole, a third key groove is symmetrically formed in the inner side wall of the circular ring cover, an inner gear ring matched with the outer gear ring is placed on the inner side of the circular ring cover, a fourth key groove is symmetrically formed in the outer side wall of the inner gear ring, and a second flat key is placed between the third key groove and the fourth key groove.

Preferably, the thickness of the backing ring is greater than the thickness of the inner gear ring, and the thickness of the inner gear ring is greater than the thickness of the outer gear ring.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a tooth type shaft coupling, when maintaining the change, with the ring cover separately the back, takes off the backing ring again, alright take off internal gear ring or external gear ring from the shaft coupling between the axle sleeve and change, need not to remove the position of drive shaft and driven shaft, need not to remove external equipment, the internal gear ring and the external gear ring of change accessory formula compare with whole change shaft coupling save resources more.

Drawings

Fig. 1 is a schematic view of the front view cross-sectional structure of the present invention.

Fig. 2 is a schematic structural view of the coupling sleeve of the present invention.

Fig. 3 is a schematic structural diagram of the ring cover of the present invention.

FIG. 4 is a left side view of the section A-A in FIG. 1.

In the figure: 1. a coupling sleeve; 2. a protruding ring; 3. a dome top; 4. a gear table top; 5. a first keyway; 6. an outer gear ring; 7. a first flat key; 8. a circular ring cover; 9. a flange plate; 10. a backing ring; 11. an extension ring; 12. a bolt; 13. a nut; 14. a third keyway; 15. an inner gear ring; 16. a second flat bond.

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, the present invention provides a technical solution: a tooth-type coupler comprises a coupling sleeve 1 which is opposite to the left and right, wherein a protruding ring 2 is formed on the outer side wall of the coupling sleeve 1, a circular cover table top 3 and a gear table top 4 are respectively formed on the left side and the right side of the protruding ring 2 on the outer side wall of the coupling sleeve 1, the axial length of the circular cover table top 3 is larger than that of the gear table top 4, first key grooves 5 are symmetrically formed on the gear table top 4, key grooves are formed in the inner side wall of the coupling sleeve 1 and used for being connected with an external driving shaft and an external driven shaft, a protruding ring 2 is formed on the outer side of the coupling sleeve 1, the outer side wall of the coupling sleeve 1 is divided into a left part and a right part by the protruding ring 2, the longer part is called as the circular cover table top 3 for allowing a circular ring cover 8 to slide on the protruding groove, the shorter part is called as the gear table top 4 and used for accommodating an external gear ring 6, when the left circular cover 8 and the right circular cover are connected together, the circular ring cover 8 can drive the protruding ring 2 to enable the two coupling sleeves 1 to clamp the backing ring 10, the outer side of the gear table top 4 is sleeved with the outer gear ring 6, the inner side wall of the outer gear ring 6 is symmetrically provided with second key grooves, a first flat key 7 is placed between the first key groove 5 and the second key groove, the outer gear ring 6 is sleeved on the gear table top 4 of the coupling sleeves 1, the outer side wall of the outer gear ring 6 is provided with clamping teeth, the second key groove on the outer gear ring 6 is inserted into the first flat key 7 after corresponding to the first key groove 5 on the gear table top 4, so that the outer gear ring 6 and the coupling sleeves 1 rotate together, the outer side of the circular ring cover table top 3 is sleeved with the circular ring cover 8, the circular ring cover 8 is sleeved on the circular cover table top 3 of the coupling sleeves 1, the circular ring cover 8 can slide on the coupling sleeves 1, one end, far away from the circular cover table top 3, of the outer side wall of the circular ring cover 8 is provided with a flange 9, and the flange 9 is fixed on the circular ring cover 8 for mutual connection, the cushion ring 10 is clamped between the coupling sleeves 1, the middle part of the outer side wall of the cushion ring 10 is provided with an extension ring 11, the cushion ring 10 is clamped between the coupling sleeves 1, the middle part of the cushion ring 10 is provided with a round hole with the same inner diameter as that of the coupling sleeves 1, the outer side of the cushion ring 10 is provided with an extension ring 11 part with relatively smaller thickness, the extension ring 11 is clamped between the flange plates 9, the extension ring 11 is symmetrically provided with round holes matched with the flange plates 9, the flange plates 9 are connected through bolts 12 and nuts 13, the bolts 12 penetrate through the round holes, the round rings penetrate through the extension ring 11 and correspond to the bolt 12 holes on the flange plates 9, after the extension ring 11 corresponds to the flange plates 9, the left and right ring covers 8 can be connected and fixed by inserting the bolts 12 and the nuts 13 into the flange plates 9 and the round holes, because the ring covers 8 can push the protruding ring 2, the cushion ring 10 can be clamped by the two coupling sleeves 1, the inner side wall of the circular ring cover 8 is symmetrically provided with third key grooves 14, the inner side of the circular ring cover 8 is provided with an inner gear ring 15 matched with the outer gear ring 6, the outer side wall of the inner gear ring 15 is symmetrically provided with fourth key grooves, a second flat key 16 is arranged between the third key grooves 14 and the fourth key grooves, the inner gear ring 15 is arranged on the inner side of the circular ring cover 8, the inner side of the inner gear ring 15 is provided with clamping teeth, the inner gear ring 15 and the circular ring cover 8 rotate together by inserting the second flat key 16 into the third key grooves 14 and the fourth key grooves, the inner gear ring 15 and the outer gear ring 6 are meshed and matched with each other, the inner gear ring 15 and the outer gear ring 6 rotate together, so that the coupling sleeve 1 and the circular ring cover 8 rotate together, the circular ring cover 8 is connected through bolts 12 and nuts 13, the left and right circular ring covers 8 rotate together, so that the left and right coupling sleeves 1 rotate together, the driving shaft drives the driven shaft.

Specifically, the thickness of the backing ring 10 is larger than the thickness of the inner gear ring 15, and the thickness of the inner gear ring 15 is larger than the thickness of the outer gear ring 6, so that the backing ring 10 can be removed during removal maintenance, and then the inner gear ring 15 and the outer gear ring 6 can be directly removed from the gap between the coupling sleeve 1 without moving the coupling sleeve 1.

The working principle is as follows: when the installation is carried out, the circular cover 8 is sleeved on the circular cover table-board 3 of the coupling sleeve 1 and is attached on the protruding ring 2 of the coupling sleeve 1, the inner gear ring 15 is placed in the circular cover 8, the outer gear ring 6 and the circular cover table-board 3 rotate together by inserting the second flat key 16 into the third key slot 14 of the circular cover 8 and the third key slot 14 of the inner gear ring 15, the outer gear ring 6 is sleeved on the gear table-board 4 of the coupling sleeve 1, the inner gear ring 15 and the coupling sleeve 1 rotate together by inserting the first flat key 7 into the first key slot 5 of the coupling sleeve 1 and the second key slot of the outer gear ring 6, the outer driving shaft and the driven shaft are respectively installed in the left coupling sleeve 1 and the right coupling sleeve 1, the key slots are arranged on the coupling sleeve 1, the driving shaft and the driven shaft can rotate together with the coupling sleeve 1, the backing ring 10 is placed between the two coupling sleeves 1, and the position of the backing ring 10 is adjusted, the two circular ring covers 8 are close to each other, so that the circular ring covers 8 can clamp the backing ring 10 between the circular ring covers, the circular holes in the extending ring 11 of the backing ring 10 correspond to the holes of the bolts 12 in the flange plates 9, the two flange plates 9 are inserted through the bolts 12 and fixed through the nuts 13, installation is completed, the coupling sleeve 1 and the circular ring covers 8 rotate together, the left circular ring cover and the right circular ring cover 8 rotate together, so that the driving shaft can drive the driven shaft to rotate, when dismounting and maintaining are conducted, the bolts 12 are dismounted by loosening the nuts 13, the circular ring covers 8 are mutually far away from and are dismounted from the backing ring 10, the backing ring 10 is dismounted, then the inner gear ring 15 or the outer gear ring 6 can be dismounted from the gap between the coupling sleeve 1 and can be taken out for replacing, the driving shaft and the driven shaft do not need to be moved, and then the installation process is repeated to complete maintenance and replacement work.

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 (2)

1. The utility model provides a tooth coupling, includes about relative coupling sleeve (1), its characterized in that: the outer side wall of the coupling sleeve (1) is provided with a protruding ring (2), the outer side wall of the coupling sleeve (1) is provided with a circular cover table top (3) and a gear table top (4) on the left side and the right side of the protruding ring (2) respectively, the axial length of the circular cover table top (3) is larger than that of the gear table top (4), first key grooves (5) are symmetrically formed in the gear table top (4), an outer gear ring (6) is sleeved on the outer side of the gear table top (4), second key grooves are symmetrically formed in the inner side wall of the outer gear ring (6), first flat keys (7) are placed between the first key grooves (5) and the second key grooves, a circular ring cover (8) is sleeved on the outer side of the circular cover table top (3), a flange (9) is arranged at one end, far away from the circular cover table top (3), of the outer side wall of the circular ring cover (8), and a cushion ring (10) is clamped between the coupling sleeve (1), the lateral wall middle part of backing ring (10) is equipped with extends circle (11), extend circle (11) and go up central symmetry and offer the round hole with ring flange (9) mutual adaptation, connect through bolt (12) and nut (13) between ring flange (9), bolt (12) run through the round hole, third keyway (14) have been seted up to the inside wall symmetry of ring cover (8), the inboard of ring cover (8) placed with interior gear ring (15) of outer gear ring (6) mutual adaptation, the fourth keyway has been seted up to the lateral wall symmetry of interior gear ring (15), third keyway (14) with second parallel key (16) have been placed between the fourth keyway.

2. A tooth coupling according to claim 1, characterized in that: the thickness of backing ring (10) is greater than the thickness of internal gear ring (15), the thickness of internal gear ring (15) is greater than the thickness of external gear ring (6).

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