CN216781444U

CN216781444U - Variable-diameter inner wall polishing device

Info

Publication number: CN216781444U
Application number: CN202123272779.7U
Authority: CN
Inventors: 王帅杰; 王飘扬; 庞书震; 刘士宁; 吴焕可
Original assignee: Zhengzhou Coal Machinery Integrated Equipment Co ltd
Current assignee: Zhengzhou Coal Machinery Integrated Equipment Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-06-21
Anticipated expiration: 2031-12-24

Abstract

The utility model provides a variable-diameter inner wall polishing device which comprises a main shaft, a sliding sleeve, a connector, at least two long supporting rods, at least two short supporting rods and at least two replaceable sand blocks, wherein the main shaft is connected with the sliding sleeve through the connector; the main shaft is a screw rod or a sliding rod, the sliding sleeve is a screw sleeve or a sliding sleeve, the sliding sleeve is arranged on the main shaft, at least two first hinge positions are arranged on the sliding sleeve in an equiangular mode in the circumferential direction, and one end of each long supporting rod is hinged to each first hinge position; the connector is arranged at the tail end of the main shaft, the connector and the main shaft are in-situ rotation fit, at least two second hinge positions are arranged on the connector in an equiangular manner in the circumferential direction, and one end of each short supporting rod is hinged to each second hinge position; the other end of each short supporting rod is arranged in the middle of the corresponding side long supporting rod through a hinge piece; each sand-replaceable block is movably arranged at the other end of each long supporting rod. The device has the advantages of variable diameter, high polishing flexibility, small volume and mass and suitability for inner holes with various sizes.

Description

Variable-diameter inner wall polishing device

Technical Field

The utility model relates to the field of remanufacturing of hydraulic cylinders, in particular to a polishing device for a variable-diameter inner wall.

Background

In the remanufacturing process of the hydraulic oil cylinder, the inner hole needs to be processed by degreasing, polishing, derusting and the like.

The traditional mode adopts hole honing or simple and easy frock polishing:

the honing mode is greatly limited by equipment, the auxiliary time is too long, and the efficiency is low;

the polishing mode of the simple tool is too simple and crude, and the effect is difficult to ensure;

both modes need carry out great adjustment to the aircraft nose when handling the hole of different diameters.

If the application number is: the name of CN202121149892.3 is: 450 discloses a tool body, a grinding head support, an ejector rod, a grinding head core, a deep groove ball bearing, a spring rod, a spring, an inner hexagon screw and an oil through rod. The utility model has the advantages that: the tool is suitable for fine grinding and polishing of large-sized workpieces, is also suitable for large-gram-weight small barrels and plunger cylinders of thousands of kilograms, and has high machining precision and wide application range; the tool utilizes the ingenious structural design of the oil through rod and the spring to enable the grinding head core to slowly move back and forth along the axis of the tool under the action of the thrust of pressure oil and the spring force, so that the rising and falling heights of all the ejector rods are ensured to be consistent, the pressure of each grinding head is controlled to be consistent, the processing precision and speed are ensured, and the use efficiency of the tool is improved; and the ascending and descending height values of the ejector rod can be changed by changing the pressure oil in the oil through rod, so that the aperture can be changed within a certain range, and the adaptability is improved.

But the structure that it can reduce is too huge, uses the difficulty in hydraulic cylinder's refabrication process, and the degree of difficulty of miniaturization is also higher, lacks the flexibility.

In order to solve the above problems, people are always seeking an ideal technical solution.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a variable-diameter inner wall polishing device which is variable in diameter, high in polishing flexibility, small in volume and mass and suitable for inner holes of various sizes.

In order to achieve the purpose, the utility model adopts the technical scheme that: a polishing device for a variable-diameter inner wall comprises a main shaft, a sliding sleeve, a connector, at least two long supporting rods, at least two short supporting rods and at least two replaceable sand blocks;

the main shaft is a screw rod or a sliding rod, the sliding sleeve is a screw sleeve or a sliding sleeve, the sliding sleeve is installed on the main shaft, at least two first hinge positions are arranged on the sliding sleeve in an equiangular mode in the circumferential direction, and one end of each long supporting rod is hinged to each first hinge position;

the connector is arranged at the tail end of the main shaft, the connector is in-situ rotation fit with the main shaft, at least two second hinge positions are arranged at equal angles in the circumferential direction of the connector, and one end of each short supporting rod is hinged to each second hinge position;

the other end of each short supporting rod is arranged in the middle of the corresponding side long supporting rod through a hinge;

each sand-replaceable block is movably arranged at the other end of each long supporting rod.

Basically, the replaceable sand block comprises a base, an elastic layer and a replaceable sand surface, wherein the replaceable sand surface is clamped and fixed by a clamping mechanism arranged on the base and is wrapped above the elastic layer.

Basically, the articulated elements are fixed on the long supporting rod, and the articulated elements are articulated with the other end of the short supporting rod.

Basically, the plane formed by the first hinge position, the second hinge position and the hinge element passes through the axis of the main shaft.

Basically, the number of the long supporting rods, the number of the short supporting rods and the number of the replaceable sand blocks are four.

Compared with the prior art, the utility model has substantive characteristics and progress, specifically, the utility model adopts a screw rod or polished rod type main shaft, a sliding sleeve, a long support rod and a short support rod to form an umbrella frame type structure, the other end of the long support rod is driven to expand or contract by the movement of the sliding sleeve on the main shaft, the diameter-variable capability is realized, the requirements of different inner holes are met, and the replaceable sand block is arranged at the other end of the long support rod and can be replaced by itself after use.

Furthermore, the machine head adopts light weight and folding design, has small mass and small volume after being folded, and is convenient to store and carry; the honing machine can be matched with different driving sources, can be used on a honing machine, has small change to the original equipment, can also be driven by a high-power mobile electric drill, has high flexibility and is suitable for temporary use; the replaceable sand blocks are distributed in a self-centering manner, the variation range of the distributed circumference diameter is large, inner holes with various diameters can be processed by one machine head, the adjustment is simple, and the adaptability is strong; through changing polishing layer on the interchangeable sand piece, can polish different material holes, reach different polishing effects.

Drawings

FIG. 1 is a schematic view showing the construction of a variable-diameter inner wall polishing apparatus according to the present invention.

FIG. 2 is a schematic view of the variable diameter inner wall polishing apparatus according to the present invention.

In the figure: 1. a main shaft; 2. a sliding sleeve; 3. a connector; 4. a long support bar; 5. a short support bar; 6. sand blocks can be replaced; 7. a hinge member.

Detailed Description

The technical solution of the present invention is further described in detail by the following embodiments.

As shown in fig. 1 and 2, the variable-diameter inner wall polishing device comprises a main shaft 1, a sliding sleeve 2, a connector 3, four long support rods 4, four short support rods 5 and four replaceable sand blocks 6.

The main shaft 1 is a sliding rod, the sliding sleeve 2 is slidably mounted on the main shaft 1, the position of the sliding sleeve can be adjusted along the length direction of the

main shaft

1, 4 first hinge positions are arranged at equal angles in the circumferential direction of the sliding sleeve 2, and one end of each long supporting rod 4 is hinged to each first hinge position respectively.

The connector 3 is installed at the tail end of the main shaft 1, and the connector 3 is in-situ rotation fit with the main shaft 1, namely only rotates in the in-situ position, and displacement cannot occur. The circumference of connector 3 is equant 4 second articulated positions that set up, and the one end of each short strut 5 articulates in each second articulated position department, the plane that first articulated position, second articulated position and articulated elements 7 constitute passes through the axis of main shaft.

The other end of each short support rod 5 is arranged in the middle of the corresponding side long support rod 4 through a hinge 7, the hinge 7 is fixed on the long support rod 4, and the hinge 7 is hinged with the other end of the short support rod 5.

Each 6 mobilizable the installing in the other end of each long bracing piece 4 of interchangeable sand block, interchangeable sand block 4 includes base, elastic layer and removable sand face, and the elastic layer setting is in the base top, and removable sand face wraps in the elastic layer top, and removable sand face is fixed through the clamping mechanism clamping of locating on the base.

The use process comprises the following steps:

replacing a replaceable sand surface, namely sand paper, on the replaceable sand block as required; the position of the sliding sleeve 2 is adjusted and fixed, so that the distribution circumference diameter D of the replaceable sand block 6 is suitable for different inner holes (self-centering); the sliding sleeve 2 can be fixed in a double-nut fixing mode, or in a mode that a jacking bolt is arranged on the side part of the sliding sleeve for fixing, or in other circumferential limiting modes for fixing.

The elastic layer of the replaceable sand block and the support rod are deformed to ensure that the sand surface of the replaceable sand block is tightly attached to the treatment inner hole; the motor drives the supporting rod to rotate to drive the replaceable sand block to rotate, so that polishing and grinding are realized; and applying reciprocating motion to the whole machine head relative to the inner hole to enable the replaceable sand block to polish the inner hole side wall in a reciprocating mode and polish the machined inner hole completely.

In other embodiments, the main shaft can also be a screw rod, the sliding sleeve is a screw sleeve, and the connector is in running fit with the main shaft and is adjusted in a spiral feeding mode.

Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.

Claims

1. The utility model provides a but reducing inner wall burnishing device which characterized in that: comprises a main shaft, a sliding sleeve, a connector, at least two long supporting rods, at least two short supporting rods and at least two replaceable sand blocks;

the main shaft is a sliding rod, the sliding sleeve is a sliding sleeve, the sliding sleeve is installed on the main shaft, at least two first hinge positions are arranged on the sliding sleeve in a circumferential equiangular mode, and one end of each long supporting rod is hinged to each first hinge position;

the connector is arranged at the tail end of the main shaft, at least two second hinge positions are arranged at equal angles in the circumferential direction of the connector, and one end of each short supporting rod is hinged to each second hinge position;

2. The variable diameter inner wall polishing apparatus according to claim 1, wherein: the replaceable sand block comprises a base, an elastic layer and a replaceable sand surface, and the replaceable sand surface is clamped and fixed through a clamping mechanism arranged on the base and is wrapped above the elastic layer.

3. The variable diameter inner wall polishing apparatus according to claim 2, wherein: the articulated elements are fixed on the long supporting rods and are articulated with the other ends of the short supporting rods.

4. The variable diameter inner wall polishing apparatus according to claim 3, wherein: the plane formed by the first hinge position, the second hinge position and the hinge piece passes through the axis of the main shaft.

5. The variable diameter inner wall polishing apparatus according to claim 4, wherein: the number of the long supporting rods, the number of the short supporting rods and the number of the replaceable sand blocks are four.

6. The utility model provides a but reducing inner wall burnishing device which characterized in that: comprises a main shaft, a sliding sleeve, a connector, at least two long supporting rods, at least two short supporting rods and at least two replaceable sand blocks;

the main shaft is a screw rod, the sliding sleeve is a screw sleeve, the sliding sleeve is installed on the main shaft, at least two first hinge positions are arranged on the sliding sleeve in a circumferential equiangular mode, and one end of each long supporting rod is hinged to each first hinge position;

7. The variable diameter inner wall polishing apparatus according to claim 6, wherein: the replaceable sand block comprises a base, an elastic layer and a replaceable sand surface, and the replaceable sand surface is clamped and fixed through a clamping mechanism arranged on the base and is wrapped above the elastic layer.

8. The variable diameter inner wall polishing apparatus according to claim 7, wherein: the articulated elements are fixed on the long supporting rods and are articulated with the other ends of the short supporting rods.

9. The variable diameter inner wall polishing apparatus according to claim 8, wherein: the plane formed by the first hinge position, the second hinge position and the hinge piece passes through the axis of the main shaft.

10. The variable diameter inner wall polishing apparatus according to claim 9, wherein: the number of the long supporting rods, the number of the short supporting rods and the number of the replaceable sand blocks are four.