CN215370851U

CN215370851U - Elastic vibration reduction type low-noise mechanical gear

Info

Publication number: CN215370851U
Application number: CN202122146887.3U
Authority: CN
Inventors: 吴剑华
Original assignee: Shengzhou Boyi Machinery Co ltd
Current assignee: Shengzhou Boyi Machinery Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2021-12-31
Anticipated expiration: 2031-09-07

Abstract

The utility model discloses an elastic vibration reduction type low-noise mechanical gear which comprises a gear body, wherein a driving wheel is sleeved in the gear body, a shaft hole is formed in the middle of the driving wheel, 2 first mounting grooves are symmetrically formed in the side wall of the shaft hole, a first spring is arranged at the bottom of each first mounting groove, connecting parts opposite to the first mounting grooves are symmetrically arranged at the outer edge of the driving wheel, an arc-shaped second mounting groove matched with the connecting parts is formed in the gear body, an arc-shaped third mounting groove is formed in one side, opposite to the second mounting groove, of each connecting part, and a transmission spring is arranged between the second mounting groove and the third mounting groove. According to the elastic vibration reduction type low-noise mechanical gear, the first spring is matched with the transmission spring, so that vibration borne by the gear body can be effectively reduced, gear meshing looseness is avoided, the use performance of the gear can be effectively improved, and the running noise of the gear is reduced.

Description

Elastic vibration reduction type low-noise mechanical gear

Technical Field

The utility model relates to the technical field of vibration reduction of mechanical gears, in particular to an elastic vibration reduction type low-noise mechanical gear.

Background

The mechanical gear is generally arranged on the shaft through a key, and needs to rotate along with the shaft when in use, and in the whole rotating process, the shaft is easy to vibrate due to external influence, and the mechanical gear can vibrate along with the shaft, so that the meshing between the mechanical gears is loosened, the mechanical gears are easy to wear, the use performance is influenced, and larger noise can be generated.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides an elastic vibration reduction type low-noise mechanical gear which can play an excellent vibration reduction role and reduce the noise generated in the operation process of the mechanical gear.

The utility model specifically adopts the following technical scheme for realizing the purpose:

the utility model provides an elasticity damping formula low noise mechanical gear, includes the gear body, this internal endotheca of gear is equipped with a drive wheel, the drive wheel middle part is provided with the shaft hole, the symmetry is provided with 2 first mounting grooves on the shaft hole lateral wall, first mounting groove bottom is provided with first spring, drive wheel outer fringe symmetry is provided with the connecting portion relative with first mounting groove, be provided with on the gear body with the curved second mounting groove of connecting portion complex, connecting portion are provided with curved third mounting groove with the relative one side of second mounting groove, be provided with drive spring between second mounting groove and the third mounting groove, drive spring spanes second mounting groove and third mounting groove, and drive spring's length direction is parallel with the length direction of second mounting groove.

Furthermore, the two ends of the transmission spring are connected with balls, and the balls span the second mounting groove and the third mounting groove.

Furthermore, a waist circular hole is formed in the connecting portion, a threaded hole matched with the waist circular hole is formed in the gear body, and bolts for locking the driving wheel and the gear body are arranged in the waist circular hole and the threaded hole.

Furthermore, an annular connecting table is arranged on one side, close to the driving wheel, of the gear body, the sum of the heights of the annular connecting table and the connecting portion is equal to the thickness of the gear body, and the thickness of the driving wheel is equal to the thickness of the gear body.

Furthermore, the edge of the gear body is provided with gear teeth, the gear body is provided with an annular oil storage tank, the gear teeth are provided with an oil delivery channel communicated with the oil storage tank, an oil outlet communicated with the oil delivery channel is arranged on the side surface of the gear teeth, an annular positioning boss is arranged at the outer end of the oil outlet, the oil outlet is provided with a plug head, the plug head comprises a first sealing section which is positioned in the oil outlet and is abutted against the end part of the positioning boss, a second sealing section which is abutted against the inner side of the positioning boss and an arc-shaped convex section which is positioned on one side of the second sealing section far away from the first sealing section, the height of the arc-shaped convex section is more than or equal to that of the positioning boss, one side of the first sealing section, which is far away from the positioning boss, is connected with a positioning rod, an installation part in sliding connection with the positioning rod is arranged in the oil transportation channel, and a return spring sleeved outside the positioning rod is arranged between the installation part and the first sealing section.

The utility model has the following beneficial effects:

according to the elastic vibration reduction type low-noise mechanical gear, the first spring is matched with the transmission spring, so that vibration borne by the gear body can be effectively reduced, gear meshing looseness is avoided, the use performance of the gear can be effectively improved, and the running noise of the gear is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of a mechanical gear;

FIG. 2 is a schematic view of a driving wheel structure;

FIG. 3 is a schematic view of a gear body construction;

FIG. 4 is an enlarged view of circle A in FIG. 3;

FIG. 5 is a schematic view of the plug construction;

FIG. 6 is a schematic view of a second installation of the plug;

reference numerals: 1-a gear body, 101-a second mounting groove, 102-an annular connecting table, 2-a transmission wheel, 201-a first mounting groove, 202-a first spring, 203-a connecting part, 204-a third mounting groove, 205-a waist round hole, 206-a shaft hole, 3-a gear tooth, 4-an oil storage groove, 401-an oil conveying channel, 402-a connecting channel, 5-a plug, 501-a first sealing section, 502-a second sealing section, 503-an arc-shaped convex section, 504-a sealing ring, 505-a positioning rod, 506-a return spring, 507-an installation part, 508-a sleeve rod, 509-a positioning boss, 6-a transmission spring and 601-a ball.

Detailed Description

In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed" and "in communication" are to be construed broadly, e.g., as meaning in fixed communication, in removable communication, or in integral communication; either mechanically or electrically; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

The embodiment provides an elastic vibration damping type low-noise mechanical gear, please refer to fig. 1, which includes a gear body 1, a transmission wheel 2 is sleeved in the gear body 1, a shaft hole 206 is arranged in the middle of the transmission wheel 2, a shaft for driving the machine to rotate is inserted into the

shaft hole

206, 2 first mounting grooves 201 are symmetrically arranged on the side wall of the shaft hole 206, a first spring 202 is arranged at the bottom of the first mounting groove 201, a key for connecting on the shaft is inserted into the first mounting groove 201 and abuts against the first spring 202, when the shaft vibrates, the first spring 202 can effectively reduce the vibration transmitted oppositely, a connecting part 203 opposite to the first mounting groove 201 is symmetrically arranged on the outer edge of the transmission wheel 2, an arc-shaped second mounting groove 101 matched with the connecting part 203 is arranged on the gear body 1, an arc-shaped third mounting groove 204 is arranged on the side of the connecting part 203 opposite to the second mounting groove 101, be provided with transmission spring 6 between second mounting groove 101 and the third mounting groove 204, transmission spring 6 strides second mounting groove 101 and third mounting groove 204, and transmission spring 6 part is located second mounting groove 101, and the part is located third mounting groove 204, and when using, second mounting groove 101 can compress transmission spring 6, utilizes transmission spring 6 to promote third mounting groove 204 along with rotating, and the length direction of transmission spring 6 is parallel with the length direction of second mounting groove 101 of course.

As a specific connection mode between the gear body 1 and the transmission wheel 2, please refer to fig. 2 and 3, a waist circular hole 205 is formed in the connection portion 203, a threaded hole matched with the waist circular hole 205 is formed in the gear body 1, bolts for locking the transmission wheel 2 and the gear body 1 are arranged in the waist circular hole 205 and the threaded hole, the connection portion 203 is fixed on the gear body 1 through the bolts, and the waist circular hole 205 leaves a margin for mutual rotation between the connection portion 203 and the gear body 1, so that when the connection portion receives vibration which cannot be reduced by the first spring 202, the connection portion 203 can transmit the vibration to the transmission spring 6, and the transmission spring 6 supplements reduction, thereby effectively preventing the gear body 1 from vibrating along with a shaft, reducing noise and ensuring gear meshing stability.

Certainly, in order to ensure the smoothness of the surface of the mechanical gear and not affect the normal use of the mechanical gear, an annular connecting table 102 is arranged on one side of the gear body 1 close to the driving wheel 2, the sum of the heights of the annular connecting table 102 and the connecting portion 203 is equal to the thickness of the gear body 1, and the thickness of the driving wheel 2 is equal to the thickness of the gear body 1, so that the connecting portion 203 and the gear body 1 do not protrude out of the gear body 1 while being in effective transmission.

In addition, in order to facilitate the connecting portion 203 to push the transmission spring 6, the two ends of the transmission spring 6 are connected with the balls 601, the balls 601 span the second mounting groove 101 and the third mounting groove 204, that is, a part of the balls 601 are located in the second mounting groove 101, and a part of the balls are located in the third mounting groove 204, when the wall of the third mounting groove 204 provides a pushing force, the balls 204 can effectively assist the third mounting groove 204 to push the transmission spring 6 to move, and meanwhile, the balls 601 preferably just abut against the bottoms of the second mounting groove 101 and the third mounting groove 204, so as to avoid the transmission spring 6 from jumping, and ensure that the gear body 1 can be smoothly pushed to rotate synchronously with the transmission wheel 2.

In order to further reduce the noise generated by the operation of the mechanical gear, please refer to fig. 4-6, the edge of the gear body 1 is provided with a gear tooth 3, the gear body 1 is provided with an annular oil storage tank 4, the gear tooth 3 is provided with an oil delivery channel 401 communicated with the oil storage tank 4, the side surface of the gear tooth 3 is provided with an oil outlet communicated with the oil delivery channel 401, the outer end of the oil outlet is provided with an annular positioning boss 509, the positioning boss 509 can be integrally formed with the gear body 1, the middle part of the oil outlet is provided with a hole for passing lubricating oil, the oil outlet is provided with a plug head 5, the plug head 5 comprises a first sealing section 501 located in the oil outlet and abutted against the end part of the positioning boss 509, a second sealing section 502 attached against the inner side of the positioning boss 509, and an arc-shaped convex section 503 located on the side of the second sealing section 502 far away from the first sealing section 501, the cross-sectional dimension of the arc-shaped convex section 503 is certainly smaller than the size of the hole formed in the middle part of the positioning boss, first seal section 501 is located the interior one end counterbalance of oil outlet with location boss 509 to seal, prevent that lubricating oil from spilling from the oil-out, avoid lubricated liquid extravagant, the height of arc evagination section 503's highly more than or equal to location boss 509 to when arc evagination section 503 is impressed in the oil-out, lubricating oil can leave the oil-out and lubricate the teeth of a cogwheel 3 through the hole at location boss 509 middle part and the gap between the arc evagination section 503 smoothly, first seal section 501 is kept away from location boss 509 one side and is connected with locating lever 505, be provided with the installation department 507 with locating lever 505 sliding connection in the oil transportation passageway 401, be provided with the reset spring 506 of cover outside the locating lever 505 between installation department 507 and the first seal section 501.

Of course, in order to lubricate each gear tooth 3 effectively, it is preferable to provide an oil outlet on each gear tooth 3, and it is also possible to provide oil outlets symmetrically on both sides of the gear tooth 3 to lubricate the gear tooth 3. Meanwhile, the gear teeth 3 are provided with connecting channels 402 for communicating oil outlets at two sides of the gear teeth 3, and the connecting channels 402 are communicated with the oil conveying channels 401, so that the number of the oil conveying channels 401 can be reduced, and the processing difficulty of gears is reduced. In addition, the mounting part 507 can be positioned in the middle of the oil outlet at two sides of the gear teeth 3, a sleeve rod 508 parallel to the connecting channel 402 is arranged on the mounting part 507, the positioning rod 505 is inserted into the sleeve rod 508, and is slidably connected to the stem 508, of course the stem 508 is parallel to the direction of movement of the plug 5, a certain included angle can be formed between the stopper head and the mounting part 507, the arrangement mode reduces the mounting difficulty of the stopper head 5, and the moving direction of the positioning rod 505 can be better limited, so that the sealing performance of the plug 5 is better, it is of course also possible to provide a sealing ring 504 at the end of the first sealing section 501 that is fitted over the second sealing section 502, the seal ring 504 abuts against the end of the positioning boss 509, the sealing performance of the plug 5 is further improved by the seal ring 504, thereby avoiding loss of the lubricating oil, but the sealing ring 504 may be formed of a common rubber sealing ring 504.

The working principle is as follows: when in use, when the shaft driving the driving wheel 2 to rotate vibrates, the existing first spring 202 reduces the vibration, reduces the vibration received by the driving wheel 2, the vibration allowance transmitted to the driving wheel 2 is attenuated by the transmission spring 6, so that the gear body 1 can basically and completely eliminate the vibration, the meshing of the gears is not influenced, the noise generated by the operation of the gears can be reduced, meanwhile, the plug 5 on the gear teeth 3 meshed with the other gear is extruded, so that the arc-shaped convex section 503 retracts towards the oil outlet, and the lubricating oil is thrown out to the gear teeth 3 through the oil outlet, so that the gear teeth 3 are effectively lubricated, after disengaging, the return spring 506 will immediately push the plug 5 to move outward, so that the plug 5 seals the oil outlet, the lubricant cannot seep out, thereby effectively avoiding the waste caused by lubricating oil and further reducing the noise generated by the running of the gear.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims

1. An elastic vibration reduction type low-noise mechanical gear comprises a gear body (1) and is characterized in that a transmission wheel (2) is sleeved in the gear body (1), a shaft hole (206) is formed in the middle of the transmission wheel (2), 2 first mounting grooves (201) are symmetrically formed in the side wall of the shaft hole (206), a first spring (202) is arranged at the bottom of each first mounting groove (201), a connecting part (203) opposite to each first mounting groove (201) is symmetrically arranged at the outer edge of the transmission wheel (2), an arc-shaped second mounting groove (101) matched with each connecting part (203) is formed in the gear body (1), an arc-shaped third mounting groove (204) is formed in one side, opposite to each second mounting groove (101), of each connecting part (203), and a transmission spring (6) is arranged between each second mounting groove (101) and each third mounting groove (204), the transmission spring (6) stretches across the second mounting groove (101) and the third mounting groove (204), and the length direction of the transmission spring (6) is parallel to the length direction of the second mounting groove (101).

2. An elastic vibration damping type low noise mechanical gear according to claim 1, wherein a ball (601) is connected to both ends of the transmission spring (6), and the ball (601) crosses the second mounting groove (101) and the third mounting groove (204).

3. An elastic vibration damping type low-noise mechanical gear according to claim 2, wherein a waist circular hole (205) is arranged on the connecting part (203), a threaded hole matched with the waist circular hole (205) is arranged on the gear body (1), and bolts for locking the transmission wheel (2) and the gear body (1) are arranged in the waist circular hole (205) and the threaded hole.

4. An elastic vibration damping type low noise mechanical gear according to claim 3, wherein the gear body (1) is provided with an annular connecting table (102) at a side close to the transmission wheel (2), the sum of the heights of the annular connecting table (102) and the connecting part (203) is equal to the thickness of the gear body (1), and the thickness of the transmission wheel (2) is equal to the thickness of the gear body (1).

5. The elastic vibration damping type low-noise mechanical gear according to claim 4, wherein the gear body (1) is provided with gear teeth (3) at the edge, the gear body (1) is provided with an annular oil storage groove (4), the gear teeth (3) are provided with an oil delivery channel (401) communicated with the oil storage groove (4), the side surface of the gear teeth (3) is provided with an oil outlet communicated with the oil delivery channel (401), the outer end of the oil outlet is provided with an annular positioning boss, the oil outlet is provided with a plug head (5), the plug head (5) comprises a first sealing section (501) which is positioned in the oil outlet and abutted against the end part of the positioning boss, a second sealing section (502) which is abutted against the inner side of the positioning boss and an arc-shaped convex section (503) which is positioned on the side of the second sealing section (502) far away from the first sealing section (501), and the height of the arc-shaped convex section (503) is greater than or equal to the height of the positioning boss, one side, far away from the locating boss, of the first sealing section (501) is connected with a locating rod (505), an installation part (507) in sliding connection with the locating rod (505) is arranged in the oil conveying channel (401), and a return spring (506) sleeved outside the locating rod (505) is arranged between the installation part (507) and the first sealing section (501).