CN214888708U

CN214888708U - Assembled helical gear capable of eliminating meshing gap

Info

Publication number: CN214888708U
Application number: CN202121283685.7U
Authority: CN
Inventors: 吉春冬; 王姝艳
Original assignee: Changzhou Chunshun Machinery Co ltd
Current assignee: Changzhou Chunshun Machinery Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-11-26
Anticipated expiration: 2031-06-09

Abstract

The utility model relates to a gear structure technical field especially relates to an equipment helical gear that can eliminate backlash, including first gear and second gear, first shaft coupling groove and second shaft coupling groove have been seted up in proper order from the right side to a left side on the first gear, the second gear is the loop configuration, the annular seat of arranging with the second gear is seted up to the left end face of first gear, and the left end face of annular seat has seted up adjustment tank, first spacing groove and guiding hole, set up thread groove and the recess that corresponds respectively with adjustment tank and guiding hole on the second gear, be equipped with the guide bar in the recess. An elastic ring is arranged between the joint surfaces of the first gear and the second gear, so that the vibration generated when the first gear and the second gear rotate relatively can be absorbed, and the stable transmission is ensured.

Description

Assembled helical gear capable of eliminating meshing gap

Technical Field

The utility model relates to a gear structure technical field especially relates to an equipment helical gear that can eliminate backlash.

Background

When two bevel gears with helical teeth transmit power between intersecting shafts, because the gears generate meshing gaps when the gears are installed at the center distance of standard gears, the transmission precision is affected, if the center distance between the two gears is shortened, the gaps can be reduced, but the abrasion of the acting tooth surfaces of the two gears is accelerated, and the resistance is increased due to the fact that the meshing arcs of the tooth surfaces of the two gears are not consistent, and therefore the gears need to be driven to run by adopting larger torque.

To solve the above problems, we propose an assembled helical gear capable of eliminating the backlash.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an assembled helical gear capable of eliminating the meshing clearance.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an equipment helical gear that can eliminate backlash, includes first gear and second gear, first shaft coupling groove and second shaft coupling groove have been seted up in proper order from the right side to a left side on the first gear, the second gear is the loop configuration, the annular seat of arranging with the second gear is seted up to the left end face of first gear, and the left end face of annular seat has seted up adjustment tank, first spacing groove and guiding hole, threaded groove and the recess that corresponds respectively with adjustment tank and guiding hole are seted up on the second gear, be equipped with the guide bar in the recess.

Preferably, the first coupling groove and the second coupling groove are communicated and integrated, and the second coupling groove is further provided with a key groove.

Preferably, the adjusting groove and the guide hole are provided with 6 groups which are uniformly distributed around the axis, and the guide rod penetrates through the guide hole.

Preferably, the guide rod is further sleeved with an elastic ring.

Preferably, the first spacing groove is provided with 6 groups and is evenly distributed around the axis.

Preferably, a second limit groove corresponding to the first limit groove is further formed in the left end face of the first gear protrusion.

The utility model has the advantages that:

1. in the utility model, the first gear and the second gear both have certain conicity, so that power can be transmitted when the two shafts are crossed, the first gear is axially adjusted through the adjusting screw, the tooth surfaces of the first gear and the second gear are widened, and simultaneously, because the tooth surface of the first gear is obliquely arranged, the teeth of the first gear can be meshed with the part which is not meshed, so that the meshing gap is effectively eliminated, and the transmission precision is ensured under the condition that the center distance is not shortened;

2. the utility model discloses in, be equipped with the elastic ring between the composition surface of first gear and second gear, can absorb the vibrations that both produced when relative rotation, guarantee that the transmission is steady.

Drawings

Fig. 1 is a schematic front view of an assembled helical gear capable of eliminating a backlash according to the present invention;

FIG. 2 is a schematic structural view of the M-M section in FIG. 1;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure: the gear comprises a first gear 1, a second gear 2, a first coupling groove 3, a second coupling groove 4, a key groove 5, an adjusting groove 6, a first limiting groove 7, a second limiting groove 8, a guide hole 9, an elastic ring 10, a groove 11, a guide rod 12 and a thread groove 13.

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.

In this embodiment, referring to fig. 1 to 3, an assembled helical gear capable of eliminating a meshing gap includes a first gear 1 and a second gear 2, a first coupling groove 3 and a second coupling groove 4 are sequentially formed in the first gear 1 from right to left, the second gear 2 is an annular structure, an annular seat matched with the second gear 2 is formed in a left end surface of the first gear 1, an adjusting groove 6, a first limiting groove 7 and a guide hole 9 are formed in a left end surface of the annular seat, a thread groove 13 and a groove 11 corresponding to the adjusting groove 6 and the guide hole 9 respectively are formed in the second gear 2, a guide rod 12 is arranged in the groove 11, and the thread groove 13 is connected with the adjusting groove 6 through an adjusting screw.

First shaft coupling groove 3 just establishes as an organic wholely with second shaft coupling groove 4 intercommunication, keyway 5 has still been seted up on the second shaft coupling groove 4, adjustment tank 6 all is equipped with 6 groups with guiding hole 9, it all is around axle center evenly distributed, and guide bar 12 wears to establish in guiding hole 9, still overlaps on the guide bar 12 and establishes elastic ring 10, first spacing groove 7 is equipped with 6 groups and around axle center evenly distributed, still sets up the second spacing groove 8 that corresponds with first spacing groove 7 on the bellied left end face of first gear 1.

The specific implementation mode is as follows: the device is an assembled helical gear capable of eliminating meshing gaps, when the device is used, a certain taper exists in a first gear 1 and a second gear 2, the taper is set as a standard value, so that the device is suitable for transmitting power when two shafts are intersected, when two helical bevel gears transmit power between the intersected shafts, one group of the helical bevel gears adopts the first gear 1 and axially adjusts the second gear 2 through an adjusting screw, the tooth surfaces of the first gear 1 and the second gear 2 are axially widened, the gear tooth part of the first gear 1 is meshed with the non-meshed part of the other group of helical bevel gears, so that the meshing gaps are effectively eliminated, the transmission precision is ensured under the condition that the center distance is not shortened, in addition, an elastic ring 10 is arranged between the joint surfaces of the first gear 1 and the second gear 2, and the elastic ring 10 can absorb the vibration generated when the first gear 1 and the second gear 2 relatively rotate, and the transmission stability is ensured.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an equipment helical gear that can eliminate backlash, includes first gear (1) and second gear (2), its characterized in that, first shaft coupling groove (3) and second shaft coupling groove (4) have been seted up in proper order from the right side to a left side on first gear (1), second gear (2) are the loop configuration, the annular seat of collocation with second gear (2) is seted up to the left end face of first gear (1), and the left end face of annular seat has seted up adjustment tank (6), first spacing groove (7) and guiding hole (9), set up thread groove (13) and recess (11) that correspond respectively with adjustment tank (6) and guiding hole (9) on second gear (2), be equipped with guide bar (12) in recess (11).

2. The assembled helical gear according to claim 1, wherein the first coupling groove (3) and the second coupling groove (4) are integrally connected, and the second coupling groove (4) is further provided with a key groove (5).

3. An assembled helical gear capable of eliminating meshing gaps according to claim 1, wherein the adjusting grooves (6) and the guide holes (9) are provided with 6 groups which are uniformly distributed around the axis, and the guide rods (12) are arranged in the guide holes (9) in a penetrating manner.

4. The assembled helical gear according to claim 1, wherein the guide rod (12) is further provided with an elastic ring (10).

5. An assembled helical gear capable of eliminating meshing gaps according to claim 1, wherein the first limiting grooves (7) are provided with 6 groups and are uniformly distributed around the axis.

6. The assembled helical gear capable of eliminating the meshing gap according to claim 5, wherein a second limit groove (8) corresponding to the first limit groove (7) is further formed on the left end surface of the protrusion of the first gear (1).