CN111058848A

CN111058848A - Double-cylinder force-increasing splitter

Info

Publication number: CN111058848A
Application number: CN201911338329.8A
Authority: CN
Inventors: 周明; 伍国正; 蒋东方
Original assignee: Hunan Lieyan Technology Co ltd
Current assignee: Hunan Lieyan Technology Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-04-24

Abstract

The invention discloses a double-cylinder boosting splitter which comprises a base, a splitting block, a wedge block, a piston rod, a pair of pistons and a pair of cylinder bodies, wherein the pair of cylinder bodies are mutually connected in series, one cylinder body is connected with one end of the base, the other end of the base is connected with the splitting block, the pair of pistons are sleeved in inner cavities of the corresponding cylinder bodies, two ends of the piston rod are connected with the corresponding pistons, the wedge block penetrates through the splitting block and is connected with the piston rod, one end of each cylinder body, far away from the base, is provided with a force application oil inlet, and one end, close to the base, of each cylinder body, far. The double-cylinder force-increasing splitter has the advantages of simple structure, flexibility in use, capability of improving splitting accuracy, contribution to weight reduction and avoidance of hydraulic oil leakage.

Description

Double-cylinder force-increasing splitter

Technical Field

The invention mainly relates to a stone mining technology, in particular to a double-cylinder force-increasing splitter.

Background

At present, the stone mining generally adopts an explosive blasting method and a splitting method. Because the explosive blasting method has high danger and large safety and stability, the problems of environmental pollution, resource waste and the like exist, and the explosive blasting is not allowed to be adopted in many occasions. The splitting method of the splitting machine is low in cost, simple to operate, safe and reliable.

In the prior art, the splitting devices are all driven by single oil cylinders, and when the splitting devices face stone materials with high hardness, the mining needs to be realized by increasing driving force, the single oil cylinder splitting devices are obviously not suitable for use, the currently adopted solution is to increase a pressure increasing valve or increase the diameter of a piston to realize pressure increasing, the two modes greatly increase the radial size of the splitting devices, and on one hand, the splitting devices are heavy when in use, and the use flexibility is influenced; on the other hand, when the splitter is used, axial force is applied, and due to the increase of the radial size, deflection easily occurs during axial force application, namely, the splitting accuracy is influenced.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and provides the double-cylinder force-increasing splitter which is simple in structure, flexible to use, capable of improving the splitting accuracy, beneficial to reducing weight and avoiding hydraulic oil leakage.

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

the utility model provides a double-cylinder reinforcement splitter, includes base, splitting piece, voussoir, piston rod, a pair of piston and a pair of cylinder body, and a pair of cylinder body establishes ties each other, and one of them cylinder body is connected with the one end of base, the other end of base is connected splitting piece, a pair of piston suit are in the inner chamber of corresponding cylinder body, the both ends and the corresponding piston connection of piston rod, the voussoir is worn to locate in the splitting piece and is connected with the piston rod, and a pair of cylinder body has seted up the application of force oil inlet in the one end of keeping away from the base, and the cylinder body of keeping away from the base has seted.

As a further improvement of the above technical solution:

the cylinder inner cavity with the reset oil inlet is provided with a sealing sleeve at one end close to the base, and the piston rod is movably sleeved in the sealing sleeve.

And a resetting oil receiving port is formed at one end of the sealing sleeve close to the resetting oil inlet.

And one end of each piston close to the force application oil inlet is provided with a force application oil receiving port.

The middle cylinder body is provided with a first guide surface which is convenient for the piston rod to move at one end close to the base, and the piston rod is provided with a second guide surface matched with the first guide surface at one end close to the base.

The wedge block is in splicing fit with the piston rod and is locked by the positioning pin.

The base includes interconnect's fixing base and upper shield, fixing base and cylinder body fastening connection, split piece is connected with the upper shield.

A pair of reset springs used for driving the expanded splitting blocks to reset are arranged in the sleeve cover, and the reset springs are in contact with the splitting blocks and the sleeve cover.

Compared with the prior art, the invention has the advantages that:

when the double-cylinder force-increasing splitter is used, oil is fed from the two force-applying oil inlets to push the two pistons to move towards the base end, the two pistons can drive the piston rods to move towards the base end, and the piston rods drive the wedge blocks to extrude split blocks, so that splitting action is completed; then, oil is fed from a reset oil inlet to push the piston to move reversely, the piston rod drives the wedge block to move reversely, and the splitting block is reset gradually. Compared with the traditional structure, the splitter adopts a double-cylinder and double-piston series structure, and shares one piston rod, so that the radial size of the splitter cannot be increased, on one hand, the splitter is simple and light in structure, and the use flexibility is improved; on the other hand, the force is applied in the axial direction, so that deflection cannot occur, and the splitting accuracy is improved; furthermore, the pressure is increased without increasing the pressure of hydraulic oil, the requirements on the material performance of the hydraulic sealing element and the cylinder body are low, and the weight reduction and the hydraulic oil leakage prevention are facilitated.

Drawings

FIG. 1 is a schematic view of the dual cylinder power splitter of the present invention.

FIG. 2 is a schematic cross-sectional view of the dual cylinder power splitter of the present invention.

FIG. 3 is a partially enlarged schematic view of the dual cylinder power splitter of the present invention.

Fig. 4 is an enlarged schematic view of a portion a of fig. 2.

The reference numerals in the figures denote:

1. a base; 11. a fixed seat; 12. covering; 2. splitting the block; 3. a wedge block; 4. a piston rod; 41. a second guide surface; 5. a piston; 51. a force application oil receiving port; 6. a cylinder body; 61. a force application oil inlet; 62. resetting the oil inlet; 63. a first guide surface; 7. sealing sleeves; 71. the oil receiving port is reset; 8. positioning pins; 9. a return spring.

Detailed Description

The invention will be described in further detail below with reference to the drawings and specific examples.

Fig. 1 to 4 show an embodiment of the double-cylinder force-increasing splitter of the invention, which comprises a base 1, a splitting block 2, a wedge 3, a piston rod 4, a pair of pistons 5 and a pair of cylinders 6, wherein the pair of cylinders 6 are connected in series, one cylinder 6 is connected with one end of the base 1, the other end of the base 1 is connected with the splitting block 2, the pair of pistons 5 are sleeved in inner cavities of the corresponding cylinders 6, two ends of the piston rod 4 are connected with the corresponding pistons 5, the wedge 3 is arranged in the splitting block 2 in a penetrating manner and is connected with the piston rod 4, one end of the pair of cylinders 6 far away from the base 1 is provided with a force application oil inlet 61, and one end of the cylinder 6 far away from the base 1 is provided with a reset. When the splitting device is used, oil is fed from the two force application oil inlets 61, the two pistons 5 are pushed to move towards the end of the base 1, the two pistons 5 can drive the piston rod 4 to move towards the end of the base 1, and the piston rod 4 drives the wedge block 3 to extrude the splitting block 2, so that splitting action is completed; then, oil is fed from a reset oil inlet 62 to push the piston 5 to move reversely, the piston rod 4 drives the wedge block 3 to move reversely, and the splitting block 2 is reset gradually. Compared with the traditional structure, the splitter adopts a structure that the double cylinder bodies 6 and the double pistons 5 are connected in series, and share one piston rod 4, so that the radial size of the splitter cannot be increased, on one hand, the splitter is simple and light in structure, and the use flexibility is improved; on the other hand, the force is applied in the axial direction, so that deflection cannot occur, and the splitting accuracy is improved; furthermore, the pressure increase is realized without increasing the pressure of hydraulic oil, the requirements on the material performance of the hydraulic sealing element and the cylinder body 6 are low, and the weight reduction and the hydraulic oil leakage prevention are facilitated.

In this embodiment, a sealing sleeve 7 is installed at one end of the inner cavity of the cylinder body 6 with the reset oil inlet 62 close to the base 1, and the piston rod 4 is movably sleeved in the sealing sleeve 7. This seal cover 7 plays the isolation effect to two cylinder bodies 6 to guarantee the pressure of two cylinder bodies 6, in order to ensure the pressure boost effect.

In this embodiment, a reset oil receiving port 71 is disposed at one end of the sealing sleeve 7 close to the reset oil inlet 62. When the piston 5 in the cylinder body 6 far away from the base 1 contacts with the sealing sleeve 7, an oil groove is formed between the reset oil receiving port 71 and the piston 5, and the piston 5 can be pushed to move reversely when the oil is fed from the reset oil receiving port 71, so that the reset is realized, the structure is simple, and the design is ingenious.

In this embodiment, a force application oil receiving port 51 is formed at one end of the pair of pistons 5 close to the force application oil inlet 61. In an initial state, one piston 5 is in contact with the sealing sleeve 7, the other piston 5 is in contact with the end part of the cylinder body 6, so that oil grooves are formed between the force application oil receiving port 51 and the end parts of the sealing sleeve 7 and the cylinder body 6 respectively, and the two pistons 5 can be pushed to move when the force application oil inlet 61 is filled with oil, so that splitting driving is realized, the structure is simple, and the design is ingenious.

In this embodiment, the middle cylinder 6 has a first guiding surface 63 at one end close to the base 1 for facilitating the movement of the piston rod 4, and the piston rod 4 has a second guiding surface 41 at one end close to the base 1 for cooperating with the first guiding surface 63. Through the cooperation of first spigot surface 63 and second spigot surface 41, play direction and the stabilizing action in this section stroke, further improved reliability and the stability of operation.

In this embodiment, the wedge 3 is inserted into the piston rod 4 and locked by the positioning pin 8. The wedge block 3 and the piston rod 4 form a detachable connection through the positioning pin 8, and quick installation, maintenance and replacement are facilitated.

In this embodiment, base 1 includes interconnect's fixing base 11 and cover 12, and fixing base 11 is connected with the cylinder body 6 fastening, and splitting piece 2 is connected with cover 12. A detachable connection is formed between the fixed seat 11 and the sleeve cover 12, further, the sleeve cover 12 is used for installing the splitting block 2, the fixed seat 11 is used for installing the cylinder body 6, and the convenience of installation, maintenance and replacement is further improved.

In this embodiment, a pair of return springs 9 for driving the expanded splitting block 2 to return is arranged in the sleeve cover 12, and the return springs 9 are in contact with the splitting block 2 and the sleeve cover 12. When the piston rod 4 moves in the forward direction, the reset spring 9 is compressed by the expansion force of the splitting block 2, when the piston rod 4 moves in the reverse direction, the expansion force is gradually released, the reset spring 9 recovers deformation, the splitting block 2 is driven to reset rapidly, and the split type piston rod is simple in structure and ingenious in design.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims

1. A double-cylinder reinforcement splitter is characterized in that: including base (1), splitting piece (2), voussoir (3), piston rod (4), a pair of piston (5) and a pair of cylinder body (6), a pair of cylinder body (6) establish ties each other, and one of them cylinder body (6) are connected with the one end of base (1), the other end of base (1) is connected splitting piece (2), a pair of piston (5) suit are in the inner chamber of corresponding cylinder body (6), the both ends and the corresponding piston (5) of piston rod (4) are connected, voussoir (3) are worn to locate in splitting piece (2) and are connected with piston rod (4), and application of force oil inlet (61) have been seted up in the one end of keeping away from base (1) to a pair of cylinder body (6), and one cylinder body (6) of keeping away from base (1) have seted up oil inlet (62) that reset in the one end that is close.

2. The dual cylinder power splitter of claim 1, wherein: a sealing sleeve (7) is arranged at one end, close to the base (1), of the inner cavity of the cylinder body (6) with the reset oil inlet (62), and the piston rod (4) is movably sleeved in the sealing sleeve (7).

3. The dual cylinder power splitter of claim 2, wherein: and a resetting oil receiving port (71) is formed at one end, close to the resetting oil inlet (62), of the sealing sleeve (7).

4. The dual cylinder power splitter of claim 3, wherein: one end of each pair of pistons (5) close to the force application oil inlet (61) is provided with a force application oil receiving port (51).

5. The dual cylinder power splitter of claim 4, wherein: the middle cylinder body (6) is provided with a first guide surface (63) which is convenient for the piston rod (4) to move at one end close to the base (1), and a second guide surface (41) matched with the first guide surface (63) is arranged at one end of the piston rod (4) close to the base (1).

6. The dual cylinder power splitter of claim 5, wherein: the wedge block (3) is in splicing fit with the piston rod (4) and is locked by the positioning pin (8).

7. The dual cylinder power splitter according to any one of claims 1 to 6, wherein: the base (1) comprises a fixed seat (11) and a sleeve cover (12) which are connected with each other, the fixed seat (11) is fixedly connected with the cylinder body (6), and the splitting block (2) is connected with the sleeve cover (12).

8. The dual cylinder power splitter of claim 7, wherein: a pair of reset springs (9) used for driving the expanded splitting blocks (2) to reset are arranged in the sleeve cover (12), and the reset springs (9) are in contact with the splitting blocks (2) and the sleeve cover (12).