CN211137909U - Positioning and mounting structure of injection molding machine ejector shaft - Google Patents
Positioning and mounting structure of injection molding machine ejector shaft Download PDFInfo
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- CN211137909U CN211137909U CN201921493529.6U CN201921493529U CN211137909U CN 211137909 U CN211137909 U CN 211137909U CN 201921493529 U CN201921493529 U CN 201921493529U CN 211137909 U CN211137909 U CN 211137909U
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- thrust
- top shaft
- ball bearing
- tapered roller
- shaft
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Abstract
The utility model relates to a positioning and mounting structure of a top shaft of an injection molding machine, which comprises the top shaft, a thrust seat, a deep groove ball bearing, a thrust ball bearing and a tapered roller bearing; the thrust ball bearing, the deep groove ball bearing and the tapered roller bearing are arranged on the top shaft from left to right, and are arranged in the thrust seat in a matching way; the right end of the top shaft is connected with an oil motor, and the oil motor is arranged at the right end of the thrust seat; the left end of the thrust base is provided with an oil seal which is sleeved on the top shaft. The location mounting structure system stability of apical axis is good in this application, and deep groove ball bearing reduces the risk that the apical axis takes place radial displacement in rotatory process and beats.
Description
Technical Field
The utility model relates to an injection molding machine technical field, specifically say, relate to a location mounting structure of injection molding machine apical axis.
Background
In the prior art, as shown in fig. 1, a positioning and mounting structure of a top shaft of a conventional injection molding machine is provided, a thrust ball bearing 7 is mounted on a thrust seat 5 and is sleeved into the top shaft 4, a tapered roller bearing 8 is mounted at the other end of the thrust seat 5, and a round nut lock washer 9 and a round nut 10 are mounted on the top shaft 4 to clamp the tapered roller bearing 8. The rotation of the top shaft 4 is achieved by an oil motor 11 mounted on the thrust bearing 5, wherein the thrust ball bearing 7 and the tapered roller bearing 8 function to assist the rotation of the top shaft 4. Because the top shaft 4 is not attached to the thrust seat 5 in the radial direction, certain deviation risk exists.
Therefore, there is a need for an improved and optimized positioning and mounting structure for the top shaft of an injection molding machine.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design reasonable, location effectual, can effectively prevent the location mounting structure of injection molding machine apical axis of apical axis off tracking.
The utility model provides a technical scheme that above-mentioned problem adopted is: a positioning and mounting structure of a top shaft of an injection molding machine comprises the top shaft, a thrust seat, a thrust ball bearing and a tapered roller bearing; the thrust ball bearing and the tapered roller bearing are arranged on the top shaft, and are arranged in the thrust seat in a matching way; the method is characterized in that: the thrust ball bearing is arranged on the top shaft, is positioned between the thrust ball bearing and the tapered roller bearing, and is arranged in the thrust seat in a matching manner.
Preferably, the thrust ball bearing, the deep groove ball bearing and the tapered roller bearing are arranged on a top shaft from left to right, the right end of the top shaft is connected with an oil motor, and the oil motor is arranged at the right end of the thrust seat; and an oil seal is arranged at the left end of the thrust seat, and the oil seal is sleeved on the top shaft.
Preferably, the mounting through hole in the thrust seat for matching with the thrust ball bearing, the deep groove ball bearing and the tapered roller bearing is a stepped hole, and the stepped hole is provided with a first stepped surface, a second stepped surface and a third stepped surface; the top shaft is a stepped shaft and is provided with a first shaft shoulder and a second shaft shoulder; the axial positioning of the thrust ball bearing is realized through a first shaft shoulder of the top shaft and a first step surface of a step hole of the thrust seat; the axial positioning of the deep groove ball bearing is realized through a second shaft shoulder of the top shaft and a second step surface of a step hole of the thrust seat; the outer ring of the tapered roller bearing is abutted against the third step surface of the step hole of the thrust seat, and the inner ring of the tapered roller bearing is positioned by screwing a round nut at the right end of the top shaft.
Preferably, the number of the round nuts is two, and a round nut stop washer is arranged between the two round nuts.
Preferably, a connecting ring is installed at the left end of the jacking shaft, a half ring is connected to the connecting ring, and a cushion block is arranged at the matching installation position of the connecting ring and the jacking shaft.
Preferably, a first lubricating oil feeding port and a second lubricating oil feeding port are formed in the thrust seat, the first lubricating oil feeding port is communicated with the thrust ball bearing, and the second lubricating oil feeding port is communicated with a space between the deep groove ball bearing and the tapered roller bearing.
Compared with the prior art, the utility model, have following advantage and effect: the positioning and mounting structure system of the jacking shaft is good in stability, and the deep groove ball bearing reduces the risk that the jacking shaft generates radial displacement and jumps in the rotating process.
Drawings
In order to illustrate the embodiments of the present invention or the solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of a positioning and mounting structure of a top shaft of a conventional injection molding machine.
Fig. 2 is a schematic view of the positioning and mounting structure of the top shaft of the injection molding machine according to the embodiment of the present invention.
Description of reference numerals: the device comprises a half ring 1, a connecting ring 2, a cushion block 3, a top shaft 4, a thrust seat 5, a first lubricating oil inlet 51, a second lubricating oil inlet 52, an oil seal 6, a thrust ball bearing 7, a tapered roller bearing 8, a round nut stop washer 9, a round nut 10, an oil motor 11 and a deep groove ball bearing 12.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples are given.
Referring to fig. 2, the embodiment discloses a positioning and mounting structure of an injection molding machine top shaft, which comprises a top shaft 4, a thrust seat 5, a thrust ball bearing 7, a tapered roller bearing 8 and a deep groove ball bearing 12 for limiting the radial displacement of the top shaft 4. The thrust ball bearing 7, the deep groove ball bearing 12 and the tapered roller bearing 8 are mounted on the top shaft 4 from left to right, and the thrust ball bearing 7, the deep groove ball bearing 12 and the tapered roller bearing 8 are mounted in the thrust block 5 in a matching manner.
In the present embodiment, the right end of the top shaft 4 is connected to the oil motor 11, the oil motor 11 is attached to the right end of the thrust bearing 5, and the oil motor 11 rotates the top shaft 4. The left end of the thrust base 5 is provided with an oil seal 6, and the oil seal 6 is sleeved on the top shaft 4. The left end of the top shaft 4 is provided with a connecting ring 2, the connecting ring 2 is connected with a half ring 1, and a cushion block 3 is arranged at the matching installation position of the connecting ring 2 and the top shaft 4.
In the present embodiment, in order to position and mount the three bearings better, the mounting through hole in the thrust bearing 5 for fitting the thrust ball bearing 7, the deep groove ball bearing 12, and the tapered roller bearing 8 is designed as a stepped hole having a first step surface, a second step surface, and a third step surface. The top shaft 4 is designed as a stepped shaft with a first shoulder and a second shoulder. The axial positioning of the thrust ball bearing 7 is realized through a first shaft shoulder of the top shaft 4 and a first step surface of a step hole of the thrust seat 5; the axial positioning of the deep groove ball bearing 12 is through a second shoulder of the top shaft 4 and a second step surface of a stepped hole of the thrust seat 5; the outer ring of the tapered roller bearing 8 is abutted against the third step surface of the step hole of the thrust block 5, the inner ring of the tapered roller bearing 8 is positioned by screwing two round nuts 10 at the right end of the top shaft 4 and arranging a round nut stop washer 9 between the two round nuts 10.
In this embodiment, the thrust bearing 5 is provided with a first lubricating oil inlet 51 and a second lubricating oil inlet 52, wherein the first lubricating oil inlet 51 leads to the thrust ball bearing 7 to inject lubricating oil into the thrust ball bearing 7; the second lubricating oil addition port 52 opens into the space between the deep groove ball bearing 12 and the tapered roller bearing 8 for injecting lubricating oil into the deep groove ball bearing 12 and the tapered roller bearing 8.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the patent idea of the utility model are included in the protection scope of the patent of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (6)
1. A positioning and mounting structure of a top shaft of an injection molding machine comprises a top shaft (4), a thrust seat (5), a thrust ball bearing (7) and a tapered roller bearing (8); the thrust ball bearing (7) and the tapered roller bearing (8) are arranged on the top shaft (4), and the thrust ball bearing (7) and the tapered roller bearing (8) are arranged in the thrust seat (5) in a matching manner; the method is characterized in that: the thrust bearing device further comprises a deep groove ball bearing (12) used for limiting the radial displacement of the top shaft (4), wherein the deep groove ball bearing (12) is installed on the top shaft (4), is positioned between the thrust ball bearing (7) and the tapered roller bearing (8), and is installed in the thrust seat (5) in a matching mode.
2. The positioning and mounting structure of the top shaft of the injection molding machine according to claim 1, characterized in that: the thrust ball bearing (7), the deep groove ball bearing (12) and the tapered roller bearing (8) are arranged on the top shaft (4) from left to right, the right end of the top shaft (4) is connected with an oil motor (11), and the oil motor (11) is arranged at the right end of the thrust seat (5); an oil seal (6) is installed at the left end of the thrust base (5), and the oil seal (6) is sleeved on the top shaft (4).
3. The positioning and mounting structure of the top shaft of the injection molding machine according to claim 2, characterized in that: a mounting through hole in the thrust seat (5) for matching with a thrust ball bearing (7), a deep groove ball bearing (12) and a tapered roller bearing (8) is a stepped hole, and the stepped hole is provided with a first stepped surface, a second stepped surface and a third stepped surface; the top shaft (4) is a stepped shaft and is provided with a first shaft shoulder and a second shaft shoulder; the axial positioning of the thrust ball bearing (7) is realized through a first shaft shoulder of the top shaft (4) and a first step surface of a step hole of the thrust seat (5); the axial positioning of the deep groove ball bearing (12) is realized through a second shaft shoulder of the top shaft (4) and a second step surface of a step hole of the thrust seat (5); the outer ring of the tapered roller bearing (8) is abutted against the third step surface of the step hole of the thrust seat (5), and the inner ring of the tapered roller bearing (8) is positioned by screwing a round nut (10) at the right end of the top shaft (4).
4. The positioning and mounting structure of the top shaft of the injection molding machine according to claim 3, wherein: the number of the round nuts (10) is two, and a round nut stop washer (9) is arranged between the two round nuts (10).
5. The positioning and mounting structure of the top shaft of the injection molding machine according to claim 1, characterized in that: the left end of apical axis (4) is installed go-between (2), is connected with ha fuyuan (1) on this go-between (2), the cooperation installation department of go-between (2) and apical axis (4) sets up cushion (3).
6. The positioning and mounting structure of the top shaft of the injection molding machine according to claim 1, characterized in that: a first lubricating oil adding opening (51) and a second lubricating oil adding opening (52) are formed in the thrust seat (5), the first lubricating oil adding opening (51) leads to the thrust ball bearing (7), and the second lubricating oil adding opening (52) leads to a space between the deep groove ball bearing (12) and the tapered roller bearing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921493529.6U CN211137909U (en) | 2019-09-09 | 2019-09-09 | Positioning and mounting structure of injection molding machine ejector shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921493529.6U CN211137909U (en) | 2019-09-09 | 2019-09-09 | Positioning and mounting structure of injection molding machine ejector shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211137909U true CN211137909U (en) | 2020-07-31 |
Family
ID=71766412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921493529.6U Active CN211137909U (en) | 2019-09-09 | 2019-09-09 | Positioning and mounting structure of injection molding machine ejector shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211137909U (en) |
-
2019
- 2019-09-09 CN CN201921493529.6U patent/CN211137909U/en active Active
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