CN111099275A

CN111099275A - Novel non-contact backstop

Info

Publication number: CN111099275A
Application number: CN201911362185.XA
Authority: CN
Inventors: 罗渊兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-05-05
Anticipated expiration: 2039-12-26
Also published as: CN111099275B

Abstract

The invention discloses a novel non-contact backstop, which comprises a bottom plate, a stop plate, an outer ring, a driving shaft sleeve, a rear sealing plate, a ratchet ring, a spring, a driving gear, a driven gear sleeve and a front sealing plate, wherein the bottom plate is provided with a stop hole; the rear sealing plate is fixedly arranged on the bottom plate, the outer ring is fixedly arranged on the bottom plate, the rear sealing plate is sleeved with the outer ring, the stop plate is connected with the outer ring through an internal spline and an external spline, the two ends of the spring are respectively connected with the stop plate and the rear sealing plate, the inner wall of the driven gear sleeve is provided with gear teeth occupying one third of the circumference of the driven gear sleeve, and the driving gear is arranged on the outer side of the ratchet ring and meshed with the driven gear sleeve. The rotation of the rotating body is adopted as kinetic energy in the design, the mechanism is completely separated by the running power, and when the rotation kinetic energy disappears, the structure returns under the compression reaction force of the spring to achieve the check effect.

Description

Novel non-contact backstop

Technical Field

The invention relates to the technical field of non-return devices, in particular to a novel non-contact non-return device.

Background

In the adhesive tape conveyor, the adhesive tape conveyors with inclination angles are all provided with backstops, so that the phenomenon that components such as a head pulley cleaner and the like are turned over and damaged due to the fact that the adhesive tape conveyors are reversely rotated when the adhesive tape conveyors stop running is prevented; especially when having the material on the sticky tape, under the gravity, the sticky tape can uncontrolled quick reversal, and is piled up the leading-in afterbody of material, influences the operation in the back and clear material, and the material of piling up still can grind the sticky tape, causes equipment abnormal wear.

The currently used non-return devices of the adhesive tape machine have two types: one is roller and reed type, the other is wedge type, that is, there is a special-shaped groove between the inner and outer sleeves connected with the rolling body, and the roller, reed or wedge are installed separately, when the roller, reed or wedge rotates forwards, the roller, reed or wedge rolls or slides along the special-shaped groove turning large angle side, when the roller, reed or wedge rotates backwards, the roller, reed or wedge moves to the small angle of the special-shaped groove and is blocked, thus realizing the effect of reverse cut-off. When the two types of the internal objects are operated together, the internal sleeve and the external sleeve are not completely separated, when the roller, the reed or the wedge block is deformed, worn and lubricated by oil shortage, the roller, the reed or the wedge block can be clamped in the forward rotation, and the roller, the reed or the wedge block can not be clamped at a small angle in the reverse rotation, so that the reverse rotation non-return failure can be caused.

Disclosure of Invention

Aiming at the technical defects, the invention aims to provide a novel non-contact type backstop which adopts a novel structure, ensures that a mechanism is completely separated from operation when in operation, and instantly stops when in stop operation, thereby effectively solving the defects of the traditional backstop.

In order to solve the technical problems, the invention adopts the following technical scheme:

the invention provides a novel non-contact backstop, which comprises a bottom plate, a stop plate, an outer ring, a driving shaft sleeve, a rear sealing plate, a ratchet ring, a spring, a driving gear, a driven gear sleeve and a front sealing plate, wherein the rear sealing plate is fixed on the bottom plate; the rear sealing plate is fixedly arranged on the bottom plate, the outer ring is fixedly arranged on the bottom plate and sleeved outside the rear sealing plate, the inner wall of one side, close to the bottom plate, of the outer ring is provided with an internal spline, the outer wall of the stop plate is provided with an external spline, the stop plate is connected with the outer ring through the internal spline and the external spline, one end, far away from the bottom plate, of the stop plate is provided with three sloping platforms along the circumferential direction, two ends of the spring are respectively connected with the stop plate and the rear sealing plate, the driving shaft sleeve is integrally formed by an inner shaft sleeve, an outer shaft sleeve and an outer ring sleeve, the inner shaft sleeve is sleeved in the rear sealing plate, the ratchet ring and the driven gear sleeve are sleeved on the inner shaft sleeve in a concentric circle manner, the inner wall of the driven gear sleeve is provided with gear teeth occupying one third of the circumference, the driving gear is arranged on the outer side of the ratchet ring and meshed with the, outer epaxial still coaxial cover is equipped with two bearings, preceding shrouding is close to outer loop cover one side, preceding shrouding inner wall has been seted up the seal groove and has been equipped with dust seal.

Preferably, the outer ring and the rear sealing plate are fixedly connected with the base plate through bolts, and the front sealing plate is fixedly connected with the outer ring through bolts.

The invention has the beneficial effects that: the rotation of the rotating body is adopted as kinetic energy in the design, the mechanism is completely separated by the running power, and when the rotation kinetic energy disappears, the structure returns under the compression reaction force of the spring to achieve the check effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a novel non-contact type backstop according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a driven gear sleeve;

FIG. 3 is a schematic view of a stopper plate;

fig. 4 is a schematic structural diagram of a novel non-contact type backstop provided in an embodiment of the present invention in a shutdown state.

Description of reference numerals:

1-bottom plate, 2-stop plate, 3-outer ring, 4-driving shaft sleeve, 5-rear seal plate, 6-ratchet ring, 7-spring, 8-driving gear, 9-driven gear sleeve, 10-front seal plate, 11-bearing, 12-ramp table, 13-baffle table and 14-seal groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 4, a novel non-contact brake includes a bottom plate 1, a stop plate 2, an outer ring 3, a driving shaft sleeve 4, a rear seal plate 5, a ratchet ring 6, a spring 7, a driving gear 8, a driven gear sleeve 9, and a front seal plate 10; the rear sealing plate 5 is fixedly arranged on the bottom plate 1, the outer ring 3 is fixedly arranged on the bottom plate 1 and sleeved outside the rear sealing plate 5, the inner wall of one side of the outer ring 3 close to the bottom plate 1 is provided with an internal spline, the outer wall of the stop plate 2 is provided with an external spline, the stop plate 2 is connected with the outer ring 3 through the internal spline and the external spline, one end of the stop plate 2 far away from the bottom plate 1 is provided with three sloping platforms 12 along the circumferential direction, two ends of a spring are respectively connected with the stop plate 2 and the rear sealing plate 5, the driving shaft sleeve 4 is integrally formed by an inner shaft sleeve, an outer shaft sleeve and an outer ring sleeve, the inner shaft sleeve is sleeved in the rear sealing plate 5, the ratchet ring 6 and the driven gear sleeve 9 are sleeved on the inner shaft sleeve in a concentric circle manner, the inner wall of the driven gear sleeve 9 is provided with gear teeth occupying one third of the circumference, the driving gear 8 is arranged outside the ratchet, bearing 11 outer wall and 3 interference fit in outer lane, preceding shrouding 10 is established and is close to outer loop cover one side at outer axle sleeve, and preceding shrouding 10 inner wall has seted up seal groove 14 and has installed dust seal.

Further, the outer ring 3 and the rear sealing plate 5 are fixedly connected with the bottom plate 1 through bolts, and the front sealing plate 10 is fixedly connected with the outer ring 3 through bolts.

When the operation body operates, the driving shaft sleeve 4 arranged at the shaft end operates simultaneously, the ratchet ring 6 and the driving gear 8 arranged outside the inner sleeve at the left end of the driving shaft sleeve 4 operate with the driving gear 8, the driving gear 8 rotates and is transmitted to the driven gear sleeve 9 meshed with the driving gear 8 to rotate, when the driven gear sleeve 9 rotates 60 degrees, no gear teeth of the inner ring of the driven gear sleeve are meshed with the driving gear 8, as shown in figure 2, the driven gear sleeve 9 stops operating, in the process, three ramp tables outside the driven gear sleeve 9 rotate to the top of a ramp from the bottom of the ramp, and correspondingly rotate to the top of three ramp tables inside the inner ring of the stop plate 2, as shown in figure 3, the stop plate 2 is extruded to move leftwards along the inner hole spline of the outer ring 3, and the compression spring 7 is in the compression process, so that the three ramp tables outside the stop plate.

At the moment when the operation body stops operating, because the driving shaft sleeve 4 connected with the operation body has no rotating force, the driving gear 8 and the driven gear sleeve 9 meshed with the driving gear 8 lose rotating force, at this time, under the spring reaction force of the spring 7, the stop plate 2 moves rightwards along the inner hole spline of the outer ring 3, the driven gear sleeve 9 is forced to rotate reversely, the driving gear 8 meshed with the driven gear sleeve also rotates reversely, the stop plate 2 moves rightwards along the inner hole spline of the outer ring 3 gradually, so that three outer-layer slope tables of the stop plate 2 are blocked reversely by the left blocking table of the driving shaft sleeve 4, and the driving shaft sleeve 4 and the connected operation body can not rotate due to the fact that the stop plate cannot rotate, and the effect of reverse non-return is achieved as shown in.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A novel non-contact backstop is characterized by comprising a bottom plate, a stop plate, an outer ring, a driving shaft sleeve, a rear sealing plate, a ratchet ring, a spring, a driving gear, a driven gear sleeve and a front sealing plate; the rear sealing plate is fixedly arranged on the bottom plate, the outer ring is fixedly arranged on the bottom plate and sleeved outside the rear sealing plate, the inner wall of one side, close to the bottom plate, of the outer ring is provided with an internal spline, the outer wall of the stop plate is provided with an external spline, the stop plate is connected with the outer ring through the internal spline and the external spline, one end, far away from the bottom plate, of the stop plate is provided with three sloping platforms along the circumferential direction, two ends of the spring are respectively connected with the stop plate and the rear sealing plate, the driving shaft sleeve is integrally formed by an inner shaft sleeve, an outer shaft sleeve and an outer ring sleeve, the inner shaft sleeve is sleeved in the rear sealing plate, the ratchet ring and the driven gear sleeve are sleeved on the inner shaft sleeve in a concentric circle manner, the inner wall of the driven gear sleeve is provided with gear teeth occupying one third of the circumference, the driving gear is arranged on the outer side of the ratchet ring and meshed with the, outer epaxial still coaxial cover is equipped with two bearings, preceding shrouding is close to outer loop cover one side, preceding shrouding inner wall has been seted up the seal groove and has been equipped with dust seal.

2. The novel non-contact backstop of claim 1 wherein said outer ring and rear seal plate are fixedly connected to said base plate by bolts and said front seal plate is fixedly connected to said outer ring by bolts.