CN215974415U - Slip shaft expansion sheet - Google Patents

Abstract

The utility model discloses a slip shaft expansion sheet which comprises an expansion sheet main body, wherein a wedge-shaped surface, an arc-shaped pressing surface and a sliding surface are arranged on the expansion sheet main body, the wedge-shaped surface is connected with the arc-shaped pressing surface, the sliding surface is connected with the arc-shaped pressing surface, a plurality of friction bulges are arranged on the arc-shaped pressing surface, a spring groove is arranged on the arc-shaped pressing surface, a plurality of weight reducing grooves are arranged on the wedge-shaped surface, and the weight of the expansion sheet main body is reduced through the weight reducing grooves, so that the overall quality of a slip shaft is reduced, and the installation efficiency of the slip shaft is improved.

Description

Slip shaft expansion sheet

Technical Field

The utility model belongs to the field of slip shaft spare parts, and particularly relates to a slip shaft expansion sheet.

Background

The slip shaft is also called as a differential shaft and a friction shaft and is used as a winding shaft and a special unwinding shaft of a splitting machine, the slip shaft consists of a shaft core, a friction assembly and a plurality of sets of slip rings, the shaft core can drive the slip rings to rotate, and the slip rings of each set can independently slip and rotate on the shaft core. In the splitting and coiling process of a splitting machine, the diameters of the coils generate large accumulated errors, so that the speed tension difference, the tightness degree and the end surface difference between the coaxial coils are caused, and partial coils stretch and deform due to overlarge tension. The slip shaft overcomes the phenomena, various slip rings slip with a certain slip torque, and the slip amount just compensates the speed difference, so that the tension of each roll of material is accurately controlled, the tension from the inner roll diameter to the outer roll diameter of each roll of material is constant and uniform, and the production efficiency and the material winding and unwinding efficiency are improved.

For example, patent document No. CN203500410U discloses a sicun-type slip shaft, which includes an axis and a plurality of slip rings sleeved on the axis, each slip ring includes a cavity and a base, the base is provided with a plurality of pushing members (expansion pieces), a wedge surface is provided between the base and the pushing members, the cavity is provided with an accommodating cavity, the base is provided with a plug corresponding to the accommodating cavity, when the slip ring works, high-pressure gas is introduced into the accommodating cavity of the cavity, the base is pushed by the plug, the pushing members are pushed out radially along the axis by the wedge surface, which is equivalent to increase the maximum outer diameter of the slip shaft, increase the friction force between the base and the material, so as to generate slippage between the base and the material, thereby realizing the constancy of the tensile force of the axis.

In the prior art, the production and processing of the slip shaft expansion sheet (pushing piece) generally uses cold heading forging and pressing, the production efficiency is high, but the expansion sheet that the cold heading comes out is solid, the quality is great, and a shaft core is often provided with a plurality of slip rings, leads to the whole quality grow of slip shaft, influences the installation efficiency of slip shaft.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a slip shaft expansion sheet, which is formed by injecting metal powder, wherein a plurality of weight reduction grooves are formed in the wedge-shaped surface of an expansion sheet main body, so that the weight of the expansion sheet is reduced, the overall quality of a slip shaft is reduced, and the installation efficiency is improved.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a slip axle bloated piece, includes the bloated piece main part, be provided with wedge face, arc in the bloated piece main part and compress tightly face and glide plane, the wedge face compresses tightly the face with the arc and is connected, the glide plane compresses tightly the face with the arc and is connected, it is protruding that the arc compresses tightly to be provided with a plurality of frictions on the face, the arc compresses tightly and is provided with the spring groove on the face, be provided with a plurality of heavy grooves on the wedge face.

Further, the friction bulge is in a trapezoidal table shape.

Furthermore, a plurality of clearance grooves are formed in the arc-shaped pressing surface.

Furthermore, a plurality of first sliding grooves are formed in the wedge-shaped surface and extend along the wedge-shaped surface.

Furthermore, a plurality of second sliding grooves are formed in the sliding surface, extend along the sliding surface and are connected with the clearance groove.

Further, the expansion piece main body is made of 420 stainless steel.

Further, the expansion piece main body is formed by metal powder injection molding.

Compared with the prior art, the utility model has the beneficial effects that: through using metal powder injection moulding, and during production, set up a plurality of heavy grooves that subtract on the wedge face of expanding piece main part to reduce the whole quality of slip axle, improve the installation effectiveness of slip axle.

Drawings

FIG. 1 is a schematic structural view of the expansion sheet of the present invention;

fig. 2 is a schematic view of the expansion sheet structure in another view.

Reference numerals: 1. a main expanding piece body; 2. a wedge-shaped surface; 3. an arc-shaped pressing surface; 4. a sliding surface; 5. a friction projection; 6. a spring slot; 7. a weight reduction groove; 8. an empty avoiding groove; 9. a first sliding groove; 10. a second sliding groove.

Detailed Description

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the utility model, "a number" or "a number" means two or more unless explicitly specified otherwise.

The utility model is further illustrated with reference to fig. 1 and 2.

The utility model provides a slip axle bloated piece, is including bloated piece main part 1, it compresses tightly face 3 and glide plane 4 to be provided with wedge face 2, arc on the bloated piece main part 1, wedge face 2 compresses tightly face 3 with the arc and is connected, glide plane 4 compresses tightly face 3 with the arc and is connected, the arc compresses tightly and is provided with a plurality of friction arch 5 on the face 3, the arc compresses tightly and is provided with spring groove 6 on the face 3, be provided with a plurality of heavy grooves 7 on the wedge face 2.

As shown in fig. 1 and fig. 2, wedge-shaped surface 2 on the bloated piece main part 1 cooperatees with wedge-shaped surface 2 on the base of installation bloated piece main part 1, axial displacement through the base, make bloated piece main part 1 radial movement roll-off, and the base and then be equipped with a plurality of bloated piece main parts 1, connect through annular spring between its a plurality of bloated piece main parts 1, annular spring is located the spring groove 6 of bloated piece main part 1, when bloated piece main part 1 stretches out, the protruding 5 of friction on its arc pressing surface 3 can be contradicted and hug closely with the epaxial material of slippage, thereby increase the coefficient of friction between material and the slippage ring, make and produce between slippage axle and the axle core and skid, realize the tension balance that the material was rolled up or was unreeled.

When the expansion piece main body 1 is produced, the weight of the expansion piece main body 1 is reduced by arranging the weight reduction grooves 7 on the wedge-shaped surface 2 of the expansion piece main body 1, so that the overall quality of the slip shaft is reduced, the installation efficiency of the slip shaft is improved, and the material cost of the expansion piece main body 1 is reduced.

As shown in fig. 2, the weight-reducing slots 7 preferably include two first slots and one second slot, so as to ensure that the expansion piece main body 1 can reduce weight to the maximum extent.

As shown in fig. 1, the friction protrusion 5 of the present embodiment is preferably in a trapezoid table shape, that is, the upper end of the friction protrusion 5 is in an arc surface shape, and the center of the arc surface of the friction protrusion coincides with the circular shape of the arc pressing surface 3, so as to increase the contact area with the material, reduce the pressure on the material when the expansion piece main body 1 contacts the material, and prevent the material from being extruded and deformed by the expansion piece to affect the production quality of the material.

As shown in fig. 1, a plurality of clearance grooves 8 are formed in the arc-shaped pressing surface 3, so that the adjacent friction protrusions 5 are arranged at intervals, the friction protrusions 5 are conveniently processed, the production efficiency of the expansion piece main body 1 is improved, the number of the friction protrusions 5 is reduced, and the material cost of the expansion piece main body 1 is reduced.

As shown in fig. 2, preferably in this embodiment, a plurality of first sliding grooves 9 are provided on the wedge-shaped surface 2, and the first sliding grooves 9 extend along the wedge-shaped surface 2, that is, after the wedge-shaped surface 2 on the expansion piece main body 1 and the wedge-shaped surface 2 on the base are in sliding fit for a plurality of times for a long time, fine waste particles are generated, and at this time, the waste particles can be collected by the first sliding grooves 9, so that the number of the waste particles participating in sliding is reduced, and the sliding efficiency of the expansion piece main body 1 is improved.

As shown in fig. 1, in the preferred embodiment, a plurality of second sliding grooves 10 are disposed on the sliding surface 4, the second sliding grooves 10 extend along the sliding surface 4, the second sliding grooves 10 are connected with the clearance groove 8, when the expansion piece slides, the sliding surface 4 on the side surface of the expansion piece will slide against the cavity on the adjacent slip ring, and the second sliding grooves 10 can collect waste particles generated by friction in the rosette, thereby improving the sliding efficiency.

The preferred expansion piece main body 1 of this embodiment is made of 420 stainless steel, which has better wear resistance, higher hardness and greater compressive strength.

The preferred expansion piece main part 1 of this embodiment is metal powder injection moulding, improves the production precision and the production efficiency of expansion piece main part 1.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims (7)

1. A slip shaft expansion sheet is characterized in that: including the bloated piece main part, be provided with wedge face, arc in the bloated piece main part and compress tightly face and glide plane, the wedge face compresses tightly the face with the arc and is connected, the glide plane compresses tightly the face with the arc and is connected, it is protruding that the arc compresses tightly to be provided with a plurality of frictions on the face, the arc compresses tightly and is provided with the spring groove on the face, be provided with a plurality of heavy grooves that subtract on the wedge face.

2. The slip disk of claim 1, wherein: the friction bulge is in a trapezoidal table shape.

3. The slip disk of claim 2, wherein: and a plurality of clearance grooves are formed in the arc-shaped pressing surface.

4. The slip disk of claim 3, wherein: a plurality of first sliding grooves are formed in the wedge-shaped surface and extend along the wedge-shaped surface.

5. The slip disk of claim 4, wherein: the sliding surface is provided with a plurality of second sliding grooves, the second sliding grooves extend along the sliding surface, and the second sliding grooves are connected with the clearance grooves.

6. The slip disk of claim 5, wherein: the expansion piece main body is made of 420 stainless steel.

7. The slip disk of claim 6, wherein: the expansion piece main body is formed by metal powder injection molding.

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