CN215950340U - Backlash adjusting device - Google Patents
Backlash adjusting device Download PDFInfo
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- CN215950340U CN215950340U CN202121827238.3U CN202121827238U CN215950340U CN 215950340 U CN215950340 U CN 215950340U CN 202121827238 U CN202121827238 U CN 202121827238U CN 215950340 U CN215950340 U CN 215950340U
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Abstract
The utility model relates to a tooth side clearance adjusting device, which comprises an eccentric mounting shaft sleeve (1), a transmission shaft (2) and a positioning connecting pin (3), wherein the eccentric mounting shaft sleeve (1) is provided with a positioning mounting shaft (11), the middle part of the positioning mounting shaft (11) is provided with a mounting hole (12), the outer part of the positioning mounting shaft (11) is provided with a fixed mounting disc (13), the mounting hole (12) and the positioning mounting shaft (11) are eccentrically arranged, the outer cylindrical surface of the positioning mounting shaft (11) is provided with a connecting hole (14), the outer cylindrical surfaces of two ends of the transmission shaft (2) are respectively provided with a positioning hole (21), the two positioning holes (21) are positioned on the same line, the two eccentric mounting shaft sleeves (1) are respectively sleeved at two ends of the transmission shaft (2) through the mounting holes (12), and the positioning connecting pin (3) is inserted into the connecting hole (14) and the positioning hole (21). The function is practical, adjusts convenient operation swift, and the regulation precision is high, is favorable to the steady transmission of gear.
Description
Technical Field
The utility model relates to the technical field of gear transmission, in particular to a tooth side clearance adjusting device.
Background
The gear transmission is a device for transmitting motion and power by a gear pair, and is a mechanical transmission mode which is most widely applied in various modern equipment. The gear transmission is accurate, the efficiency is high, the structure is compact, the work is reliable, and the service life is long. The gear transmission can be divided into parallel shaft cylindrical gear transmission, intersecting shaft conical gear transmission and staggered shaft helical gear transmission according to the relative position of the gear axes, and can be divided into cylindrical gear transmission, bevel gear transmission, non-circular gear transmission, gear rack transmission and worm and gear transmission according to the appearance of the gears.
When the gear is in meshing transmission, in order to form a lubricating oil film between meshing tooth profiles and avoid the phenomenon that the tooth profiles are stuck due to heat expansion caused by friction of the teeth, gaps are required to be left between the tooth profiles, the gaps are called tooth side gaps, but the existence of the tooth side gaps can generate tooth-to-tooth impact to influence the stability of the gear transmission, so the tooth side gaps are required to be provided, but are required to be very small. The backlash is generally secured by the center distance and the gear deviation, but the backlash cannot be secured as a minimum limit backlash due to machining errors and assembly errors.
Disclosure of Invention
The utility model aims to provide a tooth side clearance adjusting device which is simple and novel in structure, practical in function, convenient and quick in adjusting operation, high in adjusting precision and beneficial to stable transmission of a gear.
The technical scheme adopted by the utility model is as follows: the utility model provides a tooth backlash adjusting device, including eccentric mounting axle sleeve 1, transmission shaft 2 and location connecting pin 3, be provided with location installation axle 11 on the eccentric mounting axle sleeve 1, the middle part of location installation axle 11 is provided with mounting hole 12, the outside of location installation axle 11 is provided with fixed mounting dish 13, mounting hole 12 is eccentric setting with location installation axle 11, be provided with connecting hole 14 on the outer face of cylinder of location installation axle 11, it is circular array form and is provided with a plurality of long circular arc holes 15 on the terminal surface of fixed mounting dish 13, be provided with locating hole 21 on the outer face of cylinder at 2 both ends of transmission shaft respectively, two locating holes 21 are on same element line, two eccentric mounting axle sleeves 1 pass through mounting hole 12 and suit respectively at the both ends of transmission shaft 2, location connecting pin 3 inserts in connecting hole 14 and locating hole 21.
The further improvement is that a pulling jack 16 is arranged on the outer circular surface of the fixed mounting disk 13.
The further improvement lies in that the connecting hole 14 is a threaded hole, the positioning hole 21 is a smooth hole, the upper section of the positioning connecting pin 3 is a threaded rod, the lower section of the positioning connecting pin 3 is a taper pin, the threaded rod of the positioning connecting pin 3 is in threaded connection with the connecting hole 14, and the taper pin of the positioning connecting pin 3 is inserted into the positioning hole 21.
The further improvement lies in that the end surface of the positioning installation shaft 11 is provided with scale marks corresponding to the connection holes 14, and the end surface of the transmission shaft 2 is provided with scale marks corresponding to the positioning holes 21.
Compared with the prior art, the utility model has the following beneficial effects: simple structure is novel, and the function is practical, adjusts convenient operation swift, adjusts the precision height, is favorable to the steady transmission of gear.
Drawings
Figure 1 is a schematic structural view of the present invention,
fig. 2 is a left side view of fig. 1.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.
As shown in fig. 1 and 2, a backlash adjusting device comprises an eccentric mounting shaft sleeve 1, a transmission shaft 2 and a positioning connecting pin 3, wherein the eccentric mounting shaft sleeve 1 is provided with a positioning mounting shaft 11, the middle part of the positioning mounting shaft 11 is provided with a mounting hole 12, the outer part of the positioning mounting shaft 11 is provided with a fixed mounting disc 13, the mounting hole 12 and the positioning mounting shaft 11 are eccentrically arranged, the outer cylindrical surface of the positioning mounting shaft 11 is provided with a connecting hole 14, the end surface of the positioning mounting shaft 11 is provided with scale marks corresponding to the connecting hole 14, the end surface of the fixed mounting disc 13 is provided with a plurality of long arc holes 15 in a circular array shape, the outer cylindrical surface of the fixed mounting disc 13 is provided with a pulling jack 16, the outer cylindrical surfaces at two ends of the transmission shaft 2 are respectively provided with positioning holes 21, the end surface of the transmission shaft 2 is provided with scale marks corresponding to the positioning holes 21, and the two positioning holes 21 are on the same element line, the two eccentric mounting shaft sleeves 1 are respectively sleeved at two ends of the transmission shaft 2 through mounting holes 12, the positioning connecting pins 3 are inserted into the connecting holes 14 and the positioning holes 21, the connecting holes 14 are threaded holes, the positioning holes 21 are unthreaded holes, the upper sections of the positioning connecting pins 3 are threaded rods, the lower sections of the positioning connecting pins 3 are taper pins, the threaded rods of the positioning connecting pins 3 are in threaded connection with the connecting holes 14, and the taper pins of the positioning connecting pins 3 are inserted into the positioning holes 21.
The two eccentric mounting shaft sleeves 1 are respectively mounted on two side walls of a transmission box body, the positioning mounting shaft 11 is inserted into a side wall hole of the transmission box body, a fastening bolt is arranged in a long circular arc hole 15 on a fixed mounting disc 13 and is fastened and connected with the side wall of the transmission box body, a bearing is arranged between the transmission shaft 2 and the mounting hole 12, the transmission shaft 2 is rotatably connected with the eccentric mounting shaft sleeves 1, and a transmission gear is mounted on the transmission shaft 2; when the tooth side clearance of the transmission gear needs to be adjusted, firstly, the scale marks on the end face of the positioning mounting shaft 11 are aligned with the scale marks on the end face of the transmission shaft 2, so that the connecting hole 14 is aligned with the positioning hole 21, the positioning connecting pin 3 is rotated, so that the conical pin of the positioning connecting pin 3 is inserted into the positioning hole 21, at the moment, the eccentric mounting shaft sleeve 1 and the transmission shaft 2 are in a connection adjusting state, a hook-type wrench is used for being inserted into the wrenching insertion hole 16, the wrenching eccentric mounting shaft sleeve 1 rotates around the axis of the positioning mounting shaft 11, because the mounting hole 12 and the positioning mounting shaft 11 are eccentrically arranged, the transmission shaft 2 drives the transmission gear to rotate upwards or downwards under the action of an eccentric distance, the tooth side clearance of the transmission gear is adjusted, when the tooth side clearance is adjusted properly, the fastening bolt in the long arc hole 15 is screwed, then the positioning connecting pin 3 is rotated, so that the conical pin of the positioning connecting pin 3 is separated from the positioning hole 21, at this time, the eccentric mounting bush 1 and the transmission shaft 2 are in a separated rotation state.
Without being limited thereto, any changes or substitutions that are not thought of through the inventive work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (4)
1. A tooth side clearance adjusting device is characterized by comprising an eccentric mounting shaft sleeve (1), a transmission shaft (2) and a positioning connecting pin (3), wherein a positioning mounting shaft (11) is arranged on the eccentric mounting shaft sleeve (1), a mounting hole (12) is formed in the middle of the positioning mounting shaft (11), a fixed mounting disc (13) is arranged outside the positioning mounting shaft (11), the mounting hole (12) and the positioning mounting shaft (11) are eccentrically arranged, a connecting hole (14) is formed in the outer cylindrical surface of the positioning mounting shaft (11), a plurality of long circular arc holes (15) are formed in the end surface of the fixed mounting disc (13) in a circular array manner, positioning holes (21) are respectively formed in the outer cylindrical surfaces of two ends of the transmission shaft (2), the two positioning holes (21) are on the same element line, the two eccentric mounting shaft sleeves (1) are respectively sleeved at two ends of the transmission shaft (2) through the mounting holes (12), the positioning connecting pin (3) is inserted into the connecting hole (14) and the positioning hole (21).
2. A backlash adjustment device according to claim 1, wherein the fixed mounting plate (13) is provided with a wrench insertion hole (16) on an outer circumferential surface thereof.
3. A backlash adjustment device according to claim 1, wherein the coupling hole (14) is a threaded hole, the positioning hole (21) is a plain hole, the upper section of the positioning coupling pin (3) is a threaded rod, the lower section is a taper pin, the threaded rod of the positioning coupling pin (3) is threadedly coupled to the coupling hole (14), and the taper pin of the positioning coupling pin (3) is inserted into the positioning hole (21).
4. A backlash adjustment device according to claim 1, wherein the end surface of the positioning mounting shaft (11) is provided with graduation marks corresponding to the coupling holes (14), and the end surface of the drive shaft (2) is provided with graduation marks corresponding to the positioning holes (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121827238.3U CN215950340U (en) | 2021-08-03 | 2021-08-03 | Backlash adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121827238.3U CN215950340U (en) | 2021-08-03 | 2021-08-03 | Backlash adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215950340U true CN215950340U (en) | 2022-03-04 |
Family
ID=80435131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121827238.3U Active CN215950340U (en) | 2021-08-03 | 2021-08-03 | Backlash adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215950340U (en) |
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2021
- 2021-08-03 CN CN202121827238.3U patent/CN215950340U/en active Active
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