CN214007926U

CN214007926U - Melt adhesive screw driving speed reducer of injection molding machine

Info

Publication number: CN214007926U
Application number: CN202023200590.2U
Authority: CN
Inventors: 刘夏伟; 梁桂森; 何立科
Original assignee: Huizhou Aibo Intelligent Control Equipment Co ltd
Current assignee: Huizhou Aibo Intelligent Control Equipment Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-08-20
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses an injection molding machine melten gel screw rod drive reduction gear, including input flange, first ball bearing, first skeleton oil blanket, entry axle sleeve, planetary gear assembly, ring gear, second ball bearing, second skeleton oil blanket, third ball bearing, output flange, first skeleton oil blanket cover is located entry axle sleeve, the one end of entry axle sleeve is installed on input flange through first ball bearing, and the other end is connected with planetary gear's one end, planetary gear's the other end respectively through second ball bearing and third ball bearing install in on the output flange, the ring gear install in on the output flange and with second ball bearing adaptation connection, the ring gear with planetary gear meshing connection; the melt glue screw driving reducer of the injection molding machine has the advantages that the driving reducer is compact in structure, stable in operation, high in efficiency, energy-saving and emission-reducing through the arrangement of the planetary gear assembly.

Description

Melt adhesive screw driving speed reducer of injection molding machine

Technical Field

The utility model relates to an injection molding machine screw drive's technical field specifically is an injection molding machine melten gel screw drive reduction gear.

Background

The screw of the existing injection molding machine is driven by a multi-purpose hydraulic motor, and the motor is used for driving an oil pump to drive the hydraulic motor, so that the transmission efficiency in the process is lower, the structure is larger, the cleanliness of the surrounding environment is poor due to the fact that oil is easy to leak, the output shaft is allowed to bear axial force and is lower, and the rotating speed is low.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a melt glue screw driving reducer for an injection molding machine.

The utility model provides an injection molding machine melten gel screw rod drive reduction gear, includes input flange, first ball bearing, first skeleton oil blanket, entry axle sleeve, planetary gear assembly, ring gear, second ball bearing, second skeleton oil blanket, third ball bearing, output flange, first skeleton oil blanket cover is located and is sheathe in entry axle, the one end of entry axle sleeve is installed on input flange through first ball bearing, and the other end is connected with planetary gear's one end, planetary gear's the other end respectively through second ball bearing and third ball bearing install in on the output flange, the ring gear install in on the output flange and with second ball bearing adaptation connection, the ring gear with planetary gear meshing connects.

In one embodiment, the planetary gear assembly comprises a shaft-attached support, a sun gear, at least three planetary shafts, at least three planetary gears, a rolling pin, a wear-resistant gasket and a first shaft retaining ring, wherein the planetary shafts are mounted on the shaft-attached support, the wear-resistant gasket is sleeved on the planetary shafts, the planetary gears are mounted on the shaft-attached support through the rolling pin, and the first shaft retaining ring is sleeved on the shaft-attached support and located at the top of the planetary gears.

In one embodiment, the drive reducer further comprises a second shaft retainer ring and a first hole retainer ring, and the second shaft retainer ring and the first hole retainer ring are respectively sleeved on the force input shaft sleeve and located at two ends of the first ball bearing.

In one embodiment, the drive reducer further includes a third shaft retainer ring and a second hole retainer ring, and the third shaft retainer ring and the second hole retainer ring are respectively sleeved on the shaft attachment bracket and located at two ends of the third ball bearing.

In one embodiment, the drive retarder further comprises an exhaust oil plug.

Above-mentioned injection molding machine melten gel screw rod drive reduction gear through planetary gear assembly's setting, makes drive reduction gear compact structure, operates steadily, efficient energy saving and emission reduction, through the different servo motor parameters of apolegamy, adjusts ideal rotational speed and torsion, under the unchangeable condition of output torsion, 1.5 times or more than hydraulic motor can be accomplished to the rotational speed, and the melten gel screw rod ubiquitous great axial force, this application structural permission bears the axial force great.

Drawings

FIG. 1 is a schematic view of an explosion structure of a reducer driven by a melting rubber screw of an injection molding machine according to an embodiment of the present invention;

FIG. 2 is a schematic view of an assembly structure of the melt glue screw driving reducer of the injection molding machine of FIG. 1 according to an embodiment of the present invention;

fig. 3 is a schematic view of a cross-sectional structure of the melt glue screw driving reducer of the injection molding machine of fig. 1.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, 2 and 3, a melt glue screw driving reducer of an injection molding machine comprises an input flange 100, a first ball bearing 200, a first skeleton oil seal 300, an input shaft sleeve 400, a planetary gear assembly 500, an inner gear ring 600, a second ball bearing 700, a second skeleton oil seal 800, a third ball bearing 900 and an output flange 1000, the first framework oil seal 300 is sleeved on the input shaft sleeve 400, one end of the input shaft sleeve 400 is installed on the input flange 100 through the first ball bearing 200, the other end is connected with one end of the planetary gear 500, the other ends of the planetary gears 500 are respectively mounted on the output flange 1000 through a second ball bearing 700 and a third ball bearing 900, the inner gear ring 600 is mounted on the output flange 1000 and is in adaptive connection with the second ball bearing 700, and the inner gear ring 600 is in meshed connection with the planetary gear 500.

In one embodiment, the planetary gear assembly 500 includes a shaft-attached support 510, a sun gear 520, at least three planetary shafts 530, at least three planetary gears 540, a roller pin 550, a wear pad 560, and a first shaft retainer 570, wherein the planetary shafts 530 are mounted on the shaft-attached support 510, the wear pad 560 is disposed on the planetary shafts 530, the planetary gears 540 are mounted on the shaft-attached support 510 via the roller pin 550, and the first shaft retainer 570 is disposed on the shaft-attached support 510 and on top of the planetary gears 540.

The structure adopts two ball bearings, namely a big ball bearing and a small ball bearing, the improved allowable axial force is increased, the maintenance of radial force is also increased, further, the second ball bearing 700 also bears the installation and positioning of the inner gear ring 600, one side of the inner gear ring 600 is provided with a groove which is installed in a sliding way with the second ball bearing 700, and the inner gear ring 600 is locked on the output flange 1000 by a plurality of screws; the third ball bearing 900 is pressed tightly on the output flange 1000 by using the second hole retainer 500 as an axial support, the second framework oil seal 800 is also pressed tightly in the inner hole of the output flange 1000 in the same way, the shaft-attached support 510 is provided with a step shaft matched with the inner diameters of the second framework oil seal 800 and the third ball bearing 900, the step shaft penetrates through the inner hole of the output flange 1000 and installs the third shaft retainer 4000 on the retainer groove on the shaft of the shaft-attached support 510, so that the shaft-attached support 510 is fixed on the output flange 1000 and can only freely rotate, and the output end of the shaft-attached support 510 is connected with a screw of an injection molding machine.

Further, the shaft attachment bracket 510 has 3 holes distributed equally for mounting the planetary shafts 530, and further, the three sets of planetary gears 540 are mounted on the planetary shafts 530 through the needle rollers 550, the two side wear pads 560 and the first shaft retainer 570.

Further, the needles 550 are arranged in the inner bore of the planetary gear 540 in a full needle arrangement, which is structurally equivalent to a needle bearing, but has higher strength and longer service life than a needle bearing.

Further, the first shaft retainer 570 is engaged with the planetary shaft 530 and fitted with the wear pads 560 on both sides of the planetary gear 540, so that the planetary gear 540 and the needle roller 550 are prevented from being disengaged from the planetary shaft 530 and the planetary gear 540 is prevented from being worn.

Further, the planetary gear 540 sleeved on the shaft-attached bracket 510, the inner gear ring 600 and the sun gear 520 form an inner gear fixed sun gear input, and NGW planet output by the planet carrier is in meshing transmission.

When the screw of the injection molding machine needs to be driven, the servo motor is started, the servo motor rotates to drive the sun gear 520 to rotate, and because the sun gear 520 is meshed with the planetary gears 540 and the planetary gears 540 are meshed with the annular gear 600, the planetary gears 540 revolve around the sun gear 520 besides self-transmission, so that the shaft-attached support rotates, and the screw of the injection molding machine is driven to rotate.

Like this, injection molding machine melten gel screw rod drive reduction gear through planetary gear assembly 500's setting, makes drive reduction gear compact structure, operates steadily, efficient energy saving and emission reduction, through the different servo motor parameters of apolegamy, adjusts ideal rotational speed and torsion, under the unchangeable condition of output torsion, 1.5 times or more than hydraulic motor can be accomplished to the rotational speed, and the melten gel screw rod ubiquitous great axial force, this application structural permission bears the axial force great.

In one embodiment, the driving reducer further includes a second shaft retainer ring 2000 and a first hole retainer ring 3000, and the second shaft retainer ring 2000 and the first hole retainer ring 3000 are respectively sleeved on the input shaft sleeve 400 and located at two ends of the first ball bearing 200.

In this way, the axial displacement of the first ball bearing 200 can be fixed by the second shaft retainer ring 2000 and the first hole retainer ring 3000 so as not to move up and down arbitrarily.

In one embodiment, the drive reducer further includes a third shaft retainer 4000 and a second hole retainer 5000, and the third shaft retainer 4000 and the second hole retainer 5000 are respectively sleeved on the shaft attaching bracket 510 and located at two ends of the third ball bearing 900.

In one embodiment, the drive retarder further includes an exhaust oil plug 6000.

Further, the input flange 100 is installed on a designated screw hole of the inner gear ring 600 by using a screw, and the input flange 100 is provided with a boss which is matched with the tooth crest of the inner gear ring 600 to ensure the coaxiality of installation.

Furthermore, the side face of the input flange 100 is provided with 3G 1/2 standard threaded holes which can lead to the inner cavity of the whole speed reducer and are used for installing an exhaust oil plug 6000 and an aluminum oil mirror 7000, and the input flange can also be used as an oil inlet and an oil outlet besides the exhaust and observation functions.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides an injection molding machine melten gel screw rod drive reduction gear which characterized in that: the planetary gear transmission mechanism comprises an input flange, a first ball bearing, a first framework oil seal, an input shaft sleeve, a planetary gear assembly, an inner gear ring, a second ball bearing, a second framework oil seal, a third ball bearing and an output flange, wherein the input shaft sleeve is sleeved with the first framework oil seal, one end of the input shaft sleeve is installed on the input flange through the first ball bearing, the other end of the input shaft sleeve is connected with one end of a planetary gear, the other end of the planetary gear is installed on the output flange through the second ball bearing and the third ball bearing respectively, the inner gear ring is installed on the output flange and is in adaptive connection with the second ball bearing, and the inner gear ring is in meshed connection with the planetary gear.

2. The melt glue screw driving reducer of injection molding machine according to claim 1, characterized in that: the planetary gear assembly comprises a shaft-attached support, a sun gear, at least three planetary shafts, at least three planetary gears, rolling needles, wear-resistant gaskets and a first shaft retaining ring, the planetary shafts are mounted on the shaft-attached support, the wear-resistant gaskets are sleeved on the planetary shafts, the planetary gears are mounted on the shaft-attached support through the rolling needles, and the first shaft retaining ring is sleeved on the shaft-attached support and located at the top of the planetary gears.

3. The melt glue screw driving reducer of injection molding machine according to claim 1, characterized in that: the driving speed reducer further comprises a retaining ring for a second shaft and a retaining ring for a first hole, wherein the retaining ring for the second shaft and the retaining ring for the first hole are respectively sleeved on the force input shaft sleeve and are located at two ends of the first ball bearing.

4. The melt glue screw driving reducer of injection molding machine according to claim 1, characterized in that: the driving speed reducer further comprises a third shaft check ring and a second hole check ring, wherein the third shaft check ring and the second hole check ring are respectively sleeved on the shaft-attached support and located at two ends of the third ball bearing.

5. The melt glue screw driving reducer of injection molding machine according to claim 1, characterized in that: the drive reducer further comprises an exhaust oil plug.