CN212055798U - Gear meshing clearance adjusting mechanism - Google Patents
Gear meshing clearance adjusting mechanism Download PDFInfo
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- CN212055798U CN212055798U CN202020592793.1U CN202020592793U CN212055798U CN 212055798 U CN212055798 U CN 212055798U CN 202020592793 U CN202020592793 U CN 202020592793U CN 212055798 U CN212055798 U CN 212055798U
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Abstract
The utility model discloses a gear meshing clearance adjustment mechanism belongs to gear drive technical field. The gear meshing gap adjusting mechanism comprises an upright post and a motor, an eccentric disc is rotatably arranged on the upright post, the motor is eccentrically arranged on the eccentric disc and is fixedly arranged on one side of the eccentric disc, and an output shaft of the motor penetrates through the eccentric disc and is coaxially and fixedly connected with the pinion; the gear meshing adjusting mechanism further comprises an eccentric adjusting mechanism used for adjusting the eccentric amount of the eccentric disc. The gear meshing clearance adjusting mechanism provided by the utility model is an eccentric adjustment, replaces the traditional bolt straight-pushing adjusting mode, realizes the quantitative adjustment of the gear meshing clearance and changes the gear meshing clearance into gradual adjustment, and can accurately control the adjustment of the clearance; meanwhile, the positioning bolt and the adjusting bolt can both realize the positioning of the eccentric disc, so that the problem that the precision of the gear meshing clearance is greatly lost due to the fact that the positioning bolt or the adjusting bolt is not flexible can be avoided, and a double-insurance function is achieved.
Description
Technical Field
The utility model relates to a gear drive technical field, in particular to gear backlash adjustment mechanism.
Background
The gear meshing clearance adjustment adopted in the equipment in the market at present mainly adopts a bolt direct jacking adjustment mode, and the clearance adjustment and locking are realized through the bolt direct jacking rear nut locking. But the adjustment amount of the bolt straight jacking gap is difficult to control, so that the gear transmission precision, the transmission efficiency and the transmission torque are greatly reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gear meshing clearance adjustment mechanism to the gear meshing who adopts in the equipment of solving at present market is adjusted and is mainly adopted the bolt and directly pushes up the regulation mode, has clearance adjustment volume uncontrollable, leads to the problem that gear drive precision, transmission efficiency and transmission moment of torsion descend by a wide margin.
In order to solve the technical problem, the utility model provides a gear meshing clearance adjusting mechanism for adjust the meshing clearance between the big gear and the pinion of intermeshing transmission, gear meshing clearance adjusting mechanism includes stand and motor, rotate on the stand and install the eccentric disc, the motor is eccentric to be set up on the eccentric disc, and fixed mounting is in one side of the eccentric disc, the output shaft of motor passes the eccentric disc and with the coaxial fixed connection of pinion;
the gear meshing adjusting mechanism further comprises an eccentric adjusting mechanism used for adjusting the eccentric amount of the eccentric disc.
Optionally, the eccentric adjustment mechanism includes:
the arc-shaped grooves are formed in the eccentric disc along the circumferential direction;
the position of the upright post corresponding to the positioning bolt is provided with a plurality of threaded holes, and the positioning bolt penetrates through the corresponding arc-shaped groove and is connected with the threaded holes.
Optionally, the eccentric adjustment mechanism further includes:
the adjusting top lugs are fixed on the edge of the eccentric disc along the circumferential direction;
the positioning nuts in each pair correspond to each adjusting top lug, and two positioning nuts in each pair are distributed on two sides of each adjusting top lug;
and the plurality of pairs of adjusting bolts correspond to each pair of positioning nuts one to one and are in threaded connection with the positioning nuts.
Optionally, the arc-shaped groove and the positioning bolt are at least provided with 2.
Optionally, the adjusting top lug is at least provided with 2, correspondingly, the positioning nut and the adjusting bolt are both at least provided with 2 pairs.
Optionally, a through hole is formed in the eccentric disc, and an output shaft of the motor penetrates through the through hole to be fixedly connected with the pinion.
Optionally, a positioning ring is fixedly arranged at the edge of the through hole, a rotating hole is formed in the stand column, and the positioning ring is movably embedded into the rotating hole and can rotate.
The utility model provides a gear meshing clearance adjusting mechanism, including stand and motor, rotate on the stand and install the eccentric disc, the motor is eccentric to be set up on the eccentric disc, and fixed mounting is in one side of the eccentric disc, the output shaft of motor passes the eccentric disc and with the coaxial fixed connection of pinion; the gear meshing adjusting mechanism further comprises an eccentric adjusting mechanism used for adjusting the eccentric amount of the eccentric disc. The gear meshing clearance adjusting mechanism is in eccentric adjustment, replaces the traditional bolt straight-jacking adjusting mode, enables the gear meshing clearance to be changed from quantitative adjustment to progressive adjustment, and can accurately control the adjustment of the clearance; simultaneously, positioning bolt with adjusting bolt homoenergetic is right the location of eccentric disc can avoid positioning bolt or when adjusting bolt is not hard up, lead to gear engagement clearance to lose the precision by a wide margin, have the dual fail-safe function.
Drawings
Fig. 1 is a left side view of a gear backlash adjustment mechanism provided by the present invention;
fig. 2 is a front view of a gear backlash adjustment mechanism provided by the present invention.
Detailed Description
The following describes a gear backlash adjustment mechanism according to the present invention in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
Example one
The utility model provides a gear meshing clearance adjustment mechanism for adjust the meshing clearance between driven gear wheel 1 of intermeshing and the pinion 2, its structure is as shown in figure 1 and figure 2. The gear meshing gap adjusting mechanism comprises an upright post 3 and a motor 4, an eccentric disc 5 is rotatably mounted on the upright post 3, the motor 4 is eccentrically arranged on the eccentric disc 5 and is fixedly mounted on one side of the eccentric disc 5, and an output shaft of the motor 4 penetrates through the eccentric disc 5 and is coaxially and fixedly connected with the pinion 2; the gear engagement adjusting mechanism further comprises an eccentric adjusting mechanism for adjusting the eccentric amount of the eccentric disc 5.
Specifically, referring to fig. 2, the eccentric adjusting mechanism includes a plurality of arc-shaped slots 50 and a plurality of positioning bolts 51, and the plurality of arc-shaped slots 50 are circumferentially formed on the eccentric disc 5; a plurality of threaded holes are formed in the positions, corresponding to the positioning bolts 51, of the upright post 3, and the positioning bolts 51 penetrate through the corresponding arc-shaped grooves 50 and are connected with the threaded holes.
The eccentric adjusting mechanism further comprises a plurality of adjusting top lugs 52, a plurality of pairs of positioning nuts 53 and a plurality of pairs of adjusting bolts 54, wherein the plurality of adjusting top lugs 52 are fixed on the edge of the eccentric disc 5 along the circumferential direction; a plurality of pairs of the positioning nuts 53 are fixed on the upright post 3 along the circumferential direction of the eccentric disc 5, each pair of the positioning nuts 53 corresponds to each adjusting top lug 52, and two positioning nuts 53 in each pair are distributed on two sides of the adjusting top lug 52; a plurality of pairs of the adjusting bolts 54 correspond to each pair of the positioning nuts 53 one by one, and are in threaded connection with the positioning nuts 53.
The arc-shaped grooves 50 and the positioning bolts 51 are at least provided with 2. The number of the adjusting top lugs 52 is at least 2, and correspondingly, the positioning nuts 53 and the adjusting bolts 54 are at least provided with 2 pairs. Preferably, the number of the arc-shaped slots 50 and the number of the positioning bolts 51 are 4, the number of the adjusting lugs 52 is 4, and correspondingly, the number of the positioning nuts 53 and the number of the adjusting bolts 54 are 4.
Referring to fig. 1, a through hole 55 is formed on the eccentric disc 5, and an output shaft of the motor 4 passes through the through hole 55 and is fixedly connected with the pinion 2. A positioning ring 56 is fixedly arranged at the edge of the through hole 55, a rotating hole 57 is formed in the upright post 3, and the positioning ring 56 is movably embedded in the rotating hole 57 and can rotate.
The working principle is as follows:
during operation, gear wheel 1 rotates and sets up on stand 3, motor 4 works, drives pinion 2 rotates, pinion 2 with gear wheel 1 meshing transmission. When the meshing clearance needs to be adjusted, the motor 4 is turned off, the positioning bolt 51 and the adjusting bolt 54 are loosened, the eccentric disc 5 is rotated, the eccentric disc 5 drives the motor 4 to eccentrically rotate, and the pinion 2 rotates along with the motor 4, so that the meshing clearance between the pinion 2 and the bull gear 1 is changed; after the eccentric disc 5 rotates to a proper position, the positioning bolt 51 and the adjusting bolt 54 are screwed to position the eccentric disc 5. When the engagement clearance needs to be adjusted again, the above steps are repeated.
The gear meshing clearance adjusting mechanism provided by the utility model is an eccentric adjustment, replaces the traditional bolt straight-pushing adjusting mode, realizes the quantitative adjustment of the gear meshing clearance and changes the gear meshing clearance into gradual adjustment, and can accurately control the adjustment of the clearance; meanwhile, the positioning bolt 51 and the adjusting bolt 54 can both realize the positioning of the eccentric disc 5, and can avoid that the precision of the gear meshing clearance is greatly lost when the positioning bolt 51 or the adjusting bolt 54 is loosened, so that the double-insurance function is realized.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.
Claims (7)
1. A gear meshing clearance adjusting mechanism is used for adjusting a meshing clearance between a large gear (1) and a small gear (2) which are in meshing transmission with each other, and is characterized by comprising an upright post (3) and a motor (4), wherein an eccentric disc (5) is rotatably mounted on the upright post (3), the motor (4) is eccentrically arranged on the eccentric disc (5) and is fixedly mounted on one side of the eccentric disc (5), and an output shaft of the motor (4) penetrates through the eccentric disc (5) and is coaxially and fixedly connected with the small gear (2);
the gear meshing adjusting mechanism further comprises an eccentric adjusting mechanism used for adjusting the eccentric amount of the eccentric disc (5).
2. The gear backlash adjustment mechanism of claim 1 wherein said eccentric adjustment mechanism comprises:
the arc-shaped grooves (50) are formed in the eccentric disc (5) along the circumferential direction;
the positioning device comprises a plurality of positioning bolts (51), a plurality of threaded holes are formed in positions, corresponding to the positioning bolts (51), of the stand column (3), and the positioning bolts (51) penetrate through the corresponding arc-shaped grooves (50) and are connected with the threaded holes.
3. The gear backlash adjustment mechanism of claim 2, wherein said eccentric adjustment mechanism further comprises:
a plurality of adjusting lugs (52) which are fixed on the edge of the eccentric disc (5) along the circumferential direction;
a plurality of pairs of positioning nuts (53) fixed on the upright post (3) along the circumferential direction of the eccentric disc (5), wherein each pair of positioning nuts (53) corresponds to each adjusting top lug (52), and two positioning nuts (53) in each pair are distributed on two sides of each adjusting top lug (52);
and the adjusting bolts (54) correspond to the positioning nuts (53) in each pair one by one and are in threaded connection with the positioning nuts (53).
4. A gear backlash adjustment mechanism according to claim 2, wherein at least 2 of said arc-shaped slots (50) and said positioning bolts (51) are provided.
5. A gear backlash adjustment mechanism according to claim 3, wherein there are at least 2 adjustment lugs (52), and correspondingly, there are at least 2 pairs of said positioning nut (53) and said adjustment bolt (54).
6. A gear backlash adjustment mechanism according to claim 1, wherein said eccentric disc (5) is provided with a through hole (55), and an output shaft of said motor (4) is fixedly connected to said pinion (2) through said through hole (55).
7. A gear backlash adjustment mechanism according to claim 6, wherein a positioning ring (56) is fixedly arranged at the edge of said through hole (55), said column (3) is provided with a rotating hole (57), and said positioning ring (56) is movably inserted into said rotating hole (57) and can rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020592793.1U CN212055798U (en) | 2020-04-20 | 2020-04-20 | Gear meshing clearance adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020592793.1U CN212055798U (en) | 2020-04-20 | 2020-04-20 | Gear meshing clearance adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212055798U true CN212055798U (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020592793.1U Active CN212055798U (en) | 2020-04-20 | 2020-04-20 | Gear meshing clearance adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212055798U (en) |
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2020
- 2020-04-20 CN CN202020592793.1U patent/CN212055798U/en active Active
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