CN212131244U - Novel phase adjustment structure of supporting speed reducer spline spindle nose of twin-screw tear machine - Google Patents
Novel phase adjustment structure of supporting speed reducer spline spindle nose of twin-screw tear machine Download PDFInfo
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- CN212131244U CN212131244U CN202020873055.4U CN202020873055U CN212131244U CN 212131244 U CN212131244 U CN 212131244U CN 202020873055 U CN202020873055 U CN 202020873055U CN 212131244 U CN212131244 U CN 212131244U
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Abstract
The novel phase adjustment structure of the speed reducer spline shaft head matched with the double-screw tearing machine comprises a transmission shaft, a short output shaft, a long output shaft and a box body, wherein the transmission shaft, the short output shaft and the long output shaft are respectively and rotatably connected in the box body through bearings; to sum up, the utility model discloses reduce the use of key, wheel hub and bolt for the systematic error increase has reduced spline phase adjustment's precision and transmission system reliability, has increased the work load of assembly simultaneously again.
Description
Technical Field
The utility model relates to a novel phase adjustment structure of supporting speed reducer spline spindle nose is torn to twin-screw.
Background
At present, in the industry of double-screw extrusion granulator speed reducers at home and abroad, a gear fixing mode is used, namely the number of teeth of each gear of the speed reducer and the number of teeth of an output shaft spline are specified during design, the relative position and the tooth thickness tolerance of each tooth are controlled during processing, one shaft is fixed during assembly, and then the other shafts are rotated to achieve the same phase of the two output shaft splines; however, the method limits the design flexibility, increases the processing cost of the shaft and the gear of the speed reducer, reduces the processing efficiency of the gear, and is time-consuming and labor-consuming in assembly.
In addition, the reducer applied to the twin-screw extruding and kneading machine in China adopts a spline phase adjusting structure of 'gear ring + hub + expansion sleeve' (as shown in figure 1), the gear ring 101, the expansion sleeve 102, the shaft 103, the key 105, the hub 106 and the bolt 107 form the structure, wherein the hub 106 is fixed on the gear ring 101 by the bolt 107, the spigot of the hub is matched with the inner hole of the gear ring 101, the inner hole of the expansion sleeve 102 is matched with the shaft 103, and the excircle of the expansion sleeve 102 is matched with the inner hole of the gear ring 101; when the spline phase is adjusted, the bolts 107 and the bolts of the expansion sleeve 102 are loosened, so that the hub 106 and the gear ring 101 can rotate freely relatively, and after the spline phase required by design is adjusted, the bolts 107 and the bolts on the expansion sleeve 102 are tightened; however, the spline adjusting structure has the following defects for the speed reducer matched with the double-screw tearing machine: due to the existence of the bearing 104 and the bearing 108, the wrench space of the bolt 107 and the expansion sleeve 102 is quite compact, so that the adjustment is not changed, and the assembly work efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the weak point among the prior art, provide a simple structure, the adjustment is convenient, and the high twin-screw tears novel phase adjustment structure of supporting speed reducer spline spindle nose of reliability.
In order to solve the technical problem, the utility model adopts the following technical scheme: the novel phase adjustment structure of the speed reducer spline shaft head matched with the double-screw tearing machine comprises a transmission shaft, a short output shaft, a long output shaft and a box body, wherein the transmission shaft, the short output shaft and the long output shaft are respectively and rotatably connected in the box body through bearings;
the lower terminal surface of transmission shaft is fixed with outer hexagonal bolt, and the through-hole has been seted up to the top surface of box, and the through-hole sets up with the transmission shaft coaxial line, and circle is the step hole in the adjusting gear, and the upper end of transmission shaft is provided with the stair structure, and the adjusting gear is installed in the stair structure department of the upper end of transmission shaft, and the adjusting gear is installed at the transmission shaft upper end through the tight cover that expands, and the tight cover that expands is installed in the step hole of adjusting gear.
Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has: compared with the existing 'fixed gear' mode, the utility model can flexibly realize the function of 'spline phase adjustment'; compared with the mode of 'gear ring + wheel hub + expansion sleeve', the utility model has the advantages of convenience, high speed, high precision of spline phase adjustment and high reliability; in addition, compared with a 'fixed gear' mode and a 'gear ring + wheel hub + expansion sleeve' mode, the utility model has the advantages of low gear processing cost and assembly efficiency; and the utility model discloses the use of key, wheel hub and bolt has been reduced for the systematic error increase has reduced spline phase adjustment's precision and transmission system reliability, has increased the work load of assembly again simultaneously.
Drawings
FIG. 1 is a schematic structural view of a conventional spline phase adjustment structure;
fig. 2 is a schematic structural diagram of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
fig. 4 is a schematic structural view of the eyeglass attachment.
Detailed Description
As shown in fig. 2 and fig. 3, the utility model discloses a novel phase adjustment structure of supporting speed reducer spline spindle nose is torn to twin-screw, including transmission shaft 1, short output shaft 2, long output shaft 3 and box 4, transmission shaft 1, short output shaft 2 and long output shaft 3 rotate through the bearing respectively and connect in box 4, short output shaft 2 is located between transmission shaft 1 and long output shaft 3, driving gear 5 is installed to the upper end of long output shaft 3, install first drive gear 6 on the short output shaft 2, adjusting gear 7 is installed to the upper end of transmission shaft 1, adjusting gear 7 meshes with driving gear 5, install second drive gear 8 with first drive gear 6 meshing on the transmission shaft 1, the lower tip of short output shaft 2 and long output shaft 3 all wears out box 4 downwards, the lower tip of short output shaft 2 and long output shaft 3 is spline structure 9;
outer hexagonal bolt 10 is fixed with to the lower terminal surface of transmission shaft 1, through-hole 11 has been seted up to the top surface of box 4, through-hole 11 and the setting of transmission shaft 1 coaxial line, circle is the step hole in adjusting gear 7, the upper end of transmission shaft 1 is provided with the stair structure, adjusting gear 7 installs the stair structure department at the upper end of transmission shaft 1, adjusting gear 7 installs at 1 upper end of transmission shaft through tight cover 12 that expands, and tight cover 12 that expands installs at adjusting gear 7's step hole.
The utility model is characterized in that the adjusting gear 7 is arranged at the upper end part of the transmission shaft 1 through the expansion sleeve 12, the excircle of the expansion sleeve 12 is matched with the inner hole of the adjusting gear 7, and the expansion sleeve 12 plays a role in transmitting torque; the adjusting gear 7 is not arranged at the position of the inner hole of the expansion sleeve 12 and is in clearance fit with the outer circle of the transmission shaft 1, so that the centering effect is achieved; the upper end part of the transmission shaft 1 is provided with a step structure which plays a role in axial positioning; the size of the matching position of the transmission shaft 1 and the inner hole of the expansion sleeve 12 is smaller than that of the matching position of the transmission shaft 1 and the inner hole of the adjusting gear 7, so that the adjusting gear 7 is convenient to mount; the adjusting gear 7 is installed for the cantilever and the size of the through hole 11 is larger than the size of the excircle of the expansion sleeve 12, so that the bolt on the expansion sleeve 12 can be conveniently loosened and tightened.
When the utility model is adjusted, the bolt of the expansion sleeve 12 is loosened, at the moment, a gap is reserved between the inner hole of the expansion sleeve 12 and the outer diameter of the transmission shaft 1, a gap is reserved between the outer circle of the expansion sleeve 12 and the inner hole of the adjusting gear 7, the adjusting gear 7 is not arranged at the inner hole position of the expansion sleeve 12 and has a small gap with the outer circle of the transmission shaft 1, at the moment, a socket wrench can be sleeved on the outer hexagonal bolt 10 at the lower end of the transmission shaft 1 to fix the transmission shaft 1, the adjusting gear 7 is pried by a prying bar to rotate relative to the transmission shaft 1, meanwhile, the long output shaft 3 and the short output shaft 2 are manually coiled to ensure that the working surfaces of the gear pairs on the transmission shaft are jointed, if a 'glasses tool' for adjusting the spline phase can be sleeved on the spline structures 9 at the lower ends of the long output shaft 3 and the short output shaft 2 at the same time, the eyes tool is shown, if not, repeating the above steps until the spline phase is successfully adjusted.
In addition, the two internal splines of the glasses tool are identical in phase, and the parameters of the internal splines are matched with the spline structures 9 at the lower ends of the long output shaft 3 and the short output shaft 2, and are completely identical.
After the spline phase is adjusted successfully, the glasses tool is kept to be installed on the spline structures 9 at the lower ends of the long output shaft 3 and the short output shaft 2 and is still, then the expansion sleeves 12 are screwed one by one according to the regulations, and the adjustment of the phase of the spline structures 9 at the lower ends of the long output shaft 3 and the short output shaft 2 is completed after the bolts are screwed.
After the adjustment is accomplished, according to the manual dish of work turn to and move speed reducer input shaft to arbitrary angular position, the glasses frock all can easily overlap simultaneously on 3 splines of long output shaft and 2 splines of short output shaft and "glasses frock" can follow the smooth slip of axial.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (1)
1. The supporting novel phase adjustment structure of speed reducer spline spindle nose of twin-screw tear machine, its characterized in that: the transmission shaft, the short output shaft and the long output shaft are respectively connected in the box body in a rotating mode through bearings, the short output shaft is located between the transmission shaft and the long output shaft, a driving gear is installed at the upper end of the long output shaft, a first transmission gear is installed on the short output shaft, an adjusting gear is installed at the upper end of the transmission shaft and meshed with the driving gear, a second transmission gear meshed with the first transmission gear is installed on the transmission shaft, the lower end portions of the short output shaft and the long output shaft penetrate out of the box body downwards, and the lower end portions of the short output shaft and the long output shaft are both of spline structures;
the lower terminal surface of transmission shaft is fixed with outer hexagonal bolt, and the through-hole has been seted up to the top surface of box, and the through-hole sets up with the transmission shaft coaxial line, and circle is the step hole in the adjusting gear, and the upper end of transmission shaft is provided with the stair structure, and the adjusting gear is installed in the stair structure department of the upper end of transmission shaft, and the adjusting gear is installed at the transmission shaft upper end through the tight cover that expands, and the tight cover that expands is installed in the step hole of adjusting gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020873055.4U CN212131244U (en) | 2020-05-22 | 2020-05-22 | Novel phase adjustment structure of supporting speed reducer spline spindle nose of twin-screw tear machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020873055.4U CN212131244U (en) | 2020-05-22 | 2020-05-22 | Novel phase adjustment structure of supporting speed reducer spline spindle nose of twin-screw tear machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212131244U true CN212131244U (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020873055.4U Expired - Fee Related CN212131244U (en) | 2020-05-22 | 2020-05-22 | Novel phase adjustment structure of supporting speed reducer spline spindle nose of twin-screw tear machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212131244U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628364A (en) * | 2020-12-28 | 2021-04-09 | 大连橡胶塑料机械有限公司 | Phase adjusting device and method for double output shafts of homodromous double-screw speed reducer |
-
2020
- 2020-05-22 CN CN202020873055.4U patent/CN212131244U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628364A (en) * | 2020-12-28 | 2021-04-09 | 大连橡胶塑料机械有限公司 | Phase adjusting device and method for double output shafts of homodromous double-screw speed reducer |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201211 Termination date: 20210522 |
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| CF01 | Termination of patent right due to non-payment of annual fee |