CN210132757U - Film blowing rotary support - Google Patents
Film blowing rotary support Download PDFInfo
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- CN210132757U CN210132757U CN201920853080.3U CN201920853080U CN210132757U CN 210132757 U CN210132757 U CN 210132757U CN 201920853080 U CN201920853080 U CN 201920853080U CN 210132757 U CN210132757 U CN 210132757U
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- ring seat
- support
- annular groove
- side wall
- annular
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Abstract
The application discloses a film blowing rotary support, which comprises an upper support and a lower support, wherein the bottom of the upper support and the top of the lower support are respectively provided with an upper ring seat and a lower ring seat, the bottom of the upper ring seat and the top of the lower ring seat are respectively provided with a matched annular lug and an annular groove, a steel ball is arranged between the annular lug and the annular groove and can relatively rotate, a circle of limiting block is convexly arranged on the side wall of the annular lug towards the center of a circle, the lower ring seat is provided with a plurality of bolts attached to the side wall of the limiting block, the top of each bolt is provided with a baffle, the baffle is just attached to the top of the limiting block, outer teeth are formed on the peripheral side surface of the upper ring seat, the lower support is provided with a gear motor engaged with the outer teeth, the support is matched through structures among the limiting parts such as the annular groove, the annular lug, the bolts, the limiting plates and the like, the safety of personnel is guaranteed, potential safety hazards are avoided, the failure rate is reduced, and the service life of the support is prolonged.
Description
Technical Field
The application relates to the field of film blowing, in particular to a film blowing rotary support.
Background
Among the prior art, inflation film manufacturing machine passes through the aircraft nose and extrudes, the air-blower blows the circle, through drawing the rolling again, blow the circle to drawing the in-process at the air-blower, carry out thickness adjustment and prevent the film off tracking to the film through runing rest, runing rest all adopts the steel ball to connect the lower seat pivoted mode, but in the actual operation process, because runing rest need make a round trip to rotate, the rotatory direction of continuous change, thereby lead to the production of impulsive force, only rely on in the easy roll-off orbit of upper and lower seat that the steel ball is connected, cause unnecessary potential safety hazard, and the spoilage is higher, lead to the cost increase suddenly.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a blown film slewing bearing to overcome not enough among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme:
the embodiment of the application discloses blown film slewing bearing, its characterized in that: the upper support and the lower support are respectively provided with an upper ring seat and a lower ring seat, the bottom of the upper support and the top of the lower ring seat are respectively provided with a matched annular convex block and an annular groove, a steel ball is arranged between the annular convex block and the annular groove and can rotate relatively, a circle of limiting block is convexly arranged on the side wall of the annular convex block towards the circle center, a plurality of bolts attached to the side wall of the limiting block are arranged on the lower ring seat, the top of each bolt is provided with a baffle, the baffle is just attached to the top of the limiting block, external teeth are formed on the peripheral side face of the upper ring seat, and the lower support is provided with a gear motor engaged with the external teeth.
Preferably, in the film blowing rotary support, the height of the side wall of the annular groove close to the inner ring is lower than the height of the side wall of the annular groove close to the outer ring.
Preferably, in the above film blowing rotary support, a transition gear is provided between the gear motor and the external teeth, and the transition gear is simultaneously engaged with the gear motor and the external teeth.
Preferably, in the above film blowing rotary support, the bolt is sleeved with a bushing.
Preferably, in the film blowing slewing bracket, the steel balls are arranged in a steel ball retainer.
Compared with the prior art, the utility model has the advantages of:
the support is matched with the limiting parts such as the annular groove, the annular convex block, the bolt and the limiting plate in a structure, the rotation of the upper ring seat and the lower ring seat is well guaranteed, meanwhile, the upper ring seat and the lower ring seat are prevented from sliding out of a rotating track under the influence of acting forces such as centripetal impulse force, the safety of personnel is guaranteed, potential safety hazards are avoided, the failure rate is reduced, and the service life of the support is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, 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 only some embodiments described in the present application, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic structural view of a rotary film blowing support according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the film blowing slewing bracket in this embodiment includes an upper bracket 1 and a lower bracket 2, an upper ring seat 101 and a lower ring seat 201 are respectively disposed at the bottom of the upper bracket 1 and the top of the lower bracket 2, an annular projection 102 and an annular groove 202 are respectively disposed at the bottom of the upper ring seat 101 and the top of the lower ring seat 201, the annular projection 102 and the annular groove 202 are respectively provided with a steel ball 3 therebetween and can rotate relatively, a circle of stopper 103 is convexly disposed on a sidewall of the annular projection 102 toward a center of a circle, the lower ring seat 202 is provided with a plurality of bolts 203 attached to a sidewall of the stopper 103, a baffle 204 is disposed at a top of the bolts 203, the baffle 204 is just attached to a top of the stopper 103, external teeth 104 are formed on a peripheral side surface of the upper ring seat 101, and a gear motor 205.
In the technical scheme, the support is matched with the limiting parts such as the annular groove, the annular convex block, the bolt and the limiting plate in a structure, so that the upper ring seat and the lower ring seat are prevented from sliding out of a rotating track under the influence of acting forces such as centripetal force impact force while the rotation of the upper ring seat and the lower ring seat is well guaranteed, the safety hazard is avoided, the failure rate is reduced, and the service life of the support is prolonged.
In one embodiment, the height of the sidewall of the annular groove 202 near the inner race is lower than the height of the sidewall of the annular groove 202 near the outer race.
In this technical scheme, the annular groove both ends lateral wall is highly different, prevents that upper and lower circle seat from keeping away from the one end roll-off of bolt, has guaranteed the stability of support.
In one embodiment, a transition gear 206 is disposed between the gear motor 205 and the external teeth 104, and the transition gear 206 is engaged with both the gear motor 205 and the external teeth 104.
Further, a transition gear 206 is connected to the lower bracket 2 through a mating shaft 207 and a bearing housing 208. .
In the technical scheme, the transition wheel is used for connecting the gear and the gear motor, so that direct contact is avoided, the service lives of the gear and the gear motor are prolonged, the transition wheel can be conveniently replaced, and the maintenance time is shortened.
In one embodiment, a bushing 209 is sleeved over the bolt 203.
In the technical scheme, the direct contact between the bolt and the limiting block is avoided through the bushing, the mechanical part is prevented from being directly damaged due to abrasion, the bushing sleeved on the bolt is easy to replace, the support is convenient to maintain, and the maintenance cost is reduced.
In one embodiment, the steel ball 3 is disposed within a steel ball retainer (not shown).
In this technical scheme, make stable and even distribution of steel ball between annular groove and annular lug through keeping the ware, avoid making a round trip to rock, can be even be connected with annular groove, annular lug, the even pressure that bears annular lug and bring the annular groove for the rotation support operation is more stable.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a detailed description of the present application, and it should be noted that modifications and embellishments could be made by those skilled in the art without departing from the principle of the present application, and these should also be considered as the protection scope of the present application.
Claims (5)
1. The utility model provides a blown film slewing bearing which characterized in that: the upper support and the lower support are respectively provided with an upper ring seat and a lower ring seat, the bottom of the upper support and the top of the lower ring seat are respectively provided with a matched annular convex block and an annular groove, a steel ball is arranged between the annular convex block and the annular groove and can rotate relatively, a circle of limiting block is convexly arranged on the side wall of the annular convex block towards the circle center, a plurality of bolts attached to the side wall of the limiting block are arranged on the lower ring seat, the top of each bolt is provided with a baffle, the baffle is just attached to the top of the limiting block, external teeth are formed on the peripheral side face of the upper ring seat, and the lower support is provided with a gear motor engaged with the external teeth.
2. A blown film slewing bracket according to claim 1, characterized in that: the height of the side wall of the annular groove close to the inner ring is lower than that of the side wall of the annular groove close to the outer ring.
3. A blown film slewing bracket according to claim 1, characterized in that: and a transition gear is arranged between the gear motor and the external teeth, and the transition gear is meshed with the gear motor and the external teeth simultaneously.
4. A blown film slewing bracket according to claim 1, characterized in that: and the bolt is sleeved with a bushing.
5. A blown film slewing bracket according to claim 1, characterized in that: the steel balls are arranged in the steel ball retainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920853080.3U CN210132757U (en) | 2019-06-06 | 2019-06-06 | Film blowing rotary support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920853080.3U CN210132757U (en) | 2019-06-06 | 2019-06-06 | Film blowing rotary support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210132757U true CN210132757U (en) | 2020-03-10 |
Family
ID=69705987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920853080.3U Active CN210132757U (en) | 2019-06-06 | 2019-06-06 | Film blowing rotary support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210132757U (en) |
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2019
- 2019-06-06 CN CN201920853080.3U patent/CN210132757U/en active Active
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