CN217271143U

CN217271143U - Hydraulic cylinder body with composite structure

Info

Publication number: CN217271143U
Application number: CN202221024647.4U
Authority: CN
Inventors: 章旭; 徐艳
Original assignee: Hefei Jingchuang Technology Co ltd
Current assignee: Hefei Jingchuang Technology Co ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-08-23
Anticipated expiration: 2032-04-25

Abstract

The utility model relates to a composite construction's hydraulic cylinder body, assemble into integrative ceramic base member inner cylinder cover including the cylinder bottom, locate the outer cylinder of the metal base member at cylinder bottom top and with the outer cylinder interference fit of metal base member, cylinder bottom and the outer cylinder of metal base member are connected through first connecting piece, the cylinder bottom middle part is protruding form, the cylinder bottom middle part is protruding inside extending into ceramic base member inner cylinder cover. The utility model discloses simple structure, easily processing production, the connection stability between the outer cylinder of metal matrix and the internal cylinder liner of ceramic matrix is high, has improved the wearability and the corrosion resistance of cylinder body, makes cylinder body life prolong greatly to the condition of deformation or aversion is difficult to appear to the cylinder body.

Description

Hydraulic cylinder body with composite structure

Technical Field

The utility model belongs to the technical field of the pneumatic cylinder, concretely relates to composite construction's hydraulic cylinder body.

Background

The hydraulic cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and does linear reciprocating motion, has simple structure and reliable work, can omit a speed reducer when realizing reciprocating motion, has no transmission clearance, and therefore, has stable motion, thereby being widely applied to hydraulic systems of various machines, and basically consists of a cylinder barrel, a cylinder cover, a piston rod, a sealing device, a buffer device and an exhaust device.

The hydraulic cylinder has a complex use environment, and sand, high-temperature gas, fresh water and salt water can damage the cylinder barrel of the cylinder body, which finally causes the problems of pulling, abrasion and damage of the cylinder barrel, so that the hydraulic cylinder body with a composite structure needs to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, reasonable in design's a composite construction's hydraulic cylinder body just for solving above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides a composite construction's hydraulic cylinder body, includes the cylinder bottom, locates the outer cylinder of the metal base member at cylinder bottom top and assembles integrative ceramic base member inner cylinder cover with the outer cylinder interference fit of metal base member, the cylinder bottom is connected through first connecting piece with the outer cylinder of metal base member, the cylinder bottom middle part is protruding form, the protruding cylinder liner inside that extends into ceramic base member in the middle part of the cylinder bottom.

As the utility model discloses a further optimization scheme, set up the first hole of accomodating of a plurality of on the cylinder bottom, the first connecting hole of a plurality of has been seted up to the terminal surface under the outer cylinder of metal matrix, first hole and the first connecting hole one-to-one of accomodating.

As the utility model discloses a further optimization scheme, first connecting piece includes that first bolt and cover establish the first gasket on first bolt, first bolt is from first accomodating the hole and extend to inside the first connecting hole, first gasket is located first accomodating downthehole portion.

As the utility model discloses a further optimization scheme, ceramic base body inner cylinder liner top is extended from the metal base body outer cylinder barrel is inside, ceramic base body inner cylinder liner top design is used for covering at the metal base body outer cylinder barrel up end for turning up the book form.

As a further optimization scheme of the utility model, the hole has been accomodate to a plurality of second has been seted up at ceramic base member inner cylinder sleeve top, a plurality of second connecting hole has been seted up to the outer cylinder of metal base member up end, hole and second connecting hole one-to-one are accomodate to the second.

As a further optimization scheme of the utility model, the downthehole portion is accomodate to the second is equipped with the second bolt and the second gasket on the second bolt is established to the cover, the second bolt is accomodate the hole from the second and is extended to inside the second connecting hole.

As a further optimization scheme of the utility model, a plurality of locating hole has been seted up on the internal wall of ceramic matrix inner cylinder liner, the bellied outward flange in bottom of the cylinder middle part is equipped with a plurality of location strip, location strip one-to-one ground joint income locating hole is inside.

As a further optimization scheme of the utility model, the location strip slope sets up downwards.

As a further optimization scheme of the utility model, second bolt top is equipped with connecting screw.

The beneficial effects of the utility model reside in that:

the utility model discloses simple structure, easily processing production, the connection stability between the outer cylinder of metal matrix and the internal cylinder liner of ceramic matrix is high, has improved the wearability and the corrosion resistance of cylinder body, makes cylinder body life prolong greatly to the condition of deformation or aversion is difficult to appear to the cylinder body.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the cylinder bottom and the metal matrix outer cylinder barrel of the present invention.

Fig. 3 is a schematic structural diagram of the cylinder liner in the ceramic matrix according to the present invention.

In the figure: 1. a cylinder bottom; 2. a metal matrix outer cylinder barrel; 3. a ceramic matrix inner cylinder sleeve; 4. a first bolt; 41. a first receiving hole; 42. a first connection hole; 5. a first spacer; 6. a second bolt; 61. a second receiving hole; 62. a second connection hole; 7. a second gasket; 9. a positioning bar; 10. positioning holes; 11. and connecting the screw rod.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

As shown in fig. 1-3, a hydraulic cylinder body with a composite structure comprises a cylinder bottom 1, a metal matrix outer cylinder barrel 2 arranged at the top of the cylinder bottom 1, and a ceramic matrix inner cylinder sleeve 3 assembled integrally with the metal matrix outer cylinder barrel 2 in an interference fit manner, wherein the cylinder bottom 1 and the metal matrix outer cylinder barrel 2 are connected through a first connecting piece, the middle part of the cylinder bottom 1 is convex, and the middle part of the cylinder bottom 1 is convex and extends into the ceramic matrix inner cylinder sleeve 3.

In this embodiment, the cylinder bottom 1 is provided with a plurality of first receiving holes 41, the lower end surface of the metal base outer cylinder 2 is provided with a plurality of first connecting holes 42, the first receiving holes 41 correspond to the first connecting holes 42 one by one, and the first receiving holes 41 and the first connecting holes 42 provide a space for the first bolts 4 and the first gaskets 5, so as to connect the cylinder bottom 1 and the metal base outer cylinder 2 by the first bolts 4 through threads.

In this embodiment, the first connecting member includes a first bolt 4 and a first gasket 5 sleeved on the first bolt 4, the first bolt 4 extends from the first accommodating hole 41 to the inside of the first connecting hole 42, the first gasket 5 is arranged in the first accommodating hole 41, and the stability of the first bolt 4 in threaded connection with the cylinder bottom 1 and the metal matrix outer cylinder barrel 2 is enhanced by the first gasket 5 sleeved on the first bolt 4.

Further, 3 tops of the ceramic matrix inner cylinder sleeve extend out of the metal matrix outer cylinder barrel 2, the top of the ceramic matrix inner cylinder sleeve 3 is designed to be outwards folded and is used for covering the upper end face of the metal matrix outer cylinder barrel 2, so that the connection between the metal matrix outer cylinder barrel 2 and the ceramic matrix inner cylinder sleeve 3 is more stable, and the situation that the metal matrix outer cylinder barrel 2 and the ceramic matrix inner cylinder sleeve 3 deform or shift is avoided.

In this embodiment, a plurality of second accommodating holes 61 have been seted up at 3 tops of ceramic base inner liner, a plurality of second connecting hole 62 has been seted up to 2 up ends of the outer cylinder of metal base, second accommodating holes 61 and second connecting hole 62 one-to-one, and second accommodating holes 61 and second connecting hole 62 are for second bolt 6 and second gasket 7 provide the space to in 2 and the ceramic base inner liner 3 of the outer cylinder of metal base of threaded connection through second bolt 6.

In this embodiment, the second bolt 6 and the second gasket 7 sleeved on the second bolt 6 are arranged inside the second accommodating hole 61, the second bolt 6 extends from the second accommodating hole 61 to the inside of the second connecting hole 62, and the stability of the second bolt 6 in threaded connection with the metal matrix outer cylinder barrel 2 and the ceramic matrix inner cylinder sleeve 3 is enhanced through the second gasket 7 sleeved on the second bolt 6.

Furthermore, a plurality of positioning holes 10 are formed in the inner wall of the cylinder sleeve 3 in the ceramic matrix, a plurality of positioning strips 9 are arranged on the outer edge of the middle portion of the cylinder bottom 1, the positioning strips 9 are clamped into the positioning holes 10 in a one-to-one correspondence mode, and the connection stability between the cylinder bottom 1 and the cylinder sleeve 3 in the ceramic matrix can be enhanced.

Preferably, the positioning bar 9 is disposed obliquely downward, so as to further enhance the connection stability between the cylinder bottom 1 and the cylinder liner 3 in the ceramic substrate.

In this embodiment, the top of the second bolt 6 is provided with a connecting screw rod 11 so as to facilitate the cylinder body to be connected with the cylinder cover.

The implementation mode is specifically as follows: the bottom of the ceramic matrix inner cylinder sleeve 3 is placed into the metal matrix outer cylinder sleeve 2 from the top of the metal matrix outer cylinder sleeve 2, the ceramic matrix inner cylinder sleeve 3 is hot assembled on the inner wall of the metal matrix outer cylinder sleeve 2 through hot assembly machining equipment, the folded top of the ceramic matrix inner cylinder sleeve 3 is required to be covered on the upper end face of the metal matrix outer cylinder sleeve 2, second connecting holes 62 in the metal matrix outer cylinder sleeve 2 correspond to second accommodating holes 61 in the ceramic matrix inner cylinder sleeve 3 one to one, after the metal matrix outer cylinder sleeve 2 and the ceramic matrix inner cylinder sleeve 3 are hot assembled, a second gasket 7 is sleeved on the second bolt 6, the second bolt 6 is screwed into the second accommodating holes 61 and the second connecting holes 62, the second gasket 7 is pressed towards the inner wall of the second accommodating holes 61 until the second bolt 6 tightly presses the second gasket 7, the metal matrix outer cylinder sleeve 2 and the ceramic matrix inner cylinder sleeve 3 are placed at the top of the cylinder bottom 1, and the cylinder bottom 1 is installed on the metal matrix outer cylinder sleeve 2 and the ceramic matrix inner cylinder sleeve 3 through the hot assembly machining equipment Portion, need to make 1 middle part arch of cylinder bottom extend into 3 insides of ceramic base body in cylinder liner this moment, inside 9 joints of location strip go into corresponding locating hole 10, first on the cylinder bottom 1 accomodate hole 41 and the outer cylinder of the metal base body 2 on first connecting hole 42 one-to-one, establish first gasket 5 cover on first bolt 4, twist first bolt 4 soon and accomodate hole 41 and first connecting hole 42 inside, compress tightly first gasket 5 to first accomodating hole 41 inner wall up to first bolt 4, the utility model discloses simple structure, easily processing production, the connection stability between the outer cylinder of the metal base body 2 and the interior cylinder liner of ceramic base body 3 is high, has improved the wearability and the corrosion resistance of cylinder body, makes cylinder body life prolong greatly to the condition of deformation or aversion is difficult to appear to the cylinder body.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides a hydraulic cylinder body of composite construction which characterized in that: the cylinder bottom comprises a cylinder bottom (1), a metal base body outer cylinder barrel (2) arranged at the top of the cylinder bottom (1) and a ceramic base body inner cylinder sleeve (3) assembled into a whole with the metal base body outer cylinder barrel (2) in an interference fit mode, the cylinder bottom (1) and the metal base body outer cylinder barrel (2) are connected through a first connecting piece, the middle of the cylinder bottom (1) is in a protruding shape, and the middle of the cylinder bottom (1) protrudes to extend into the ceramic base body inner cylinder sleeve (3).

2. A composite structural hydraulic cylinder block as set forth in claim 1, wherein: the cylinder bottom (1) is provided with a plurality of first accommodating holes (41), the lower end face of the metal base body outer cylinder barrel (2) is provided with a plurality of first connecting holes (42), and the first accommodating holes (41) correspond to the first connecting holes (42) one to one.

3. A composite structural hydraulic cylinder block as set forth in claim 2, wherein: first connecting piece includes first bolt (4) and overlaps and establish first gasket (5) on first bolt (4), first bolt (4) are followed first hole (41) of accomodating and are extended to inside first connecting hole (42), first gasket (5) are located inside first hole (41) of accomodating.

4. A composite structural hydraulic cylinder block as set forth in claim 1, wherein: the top of the ceramic matrix inner cylinder sleeve (3) extends out of the metal matrix outer cylinder barrel (2), and the top of the ceramic matrix inner cylinder sleeve (3) is designed to be outwards folded and used for covering the upper end face of the metal matrix outer cylinder barrel (2).

5. A composite structural hydraulic cylinder block as set forth in claim 1, wherein: a plurality of second accommodating holes (61) are formed in the top of the ceramic matrix inner cylinder sleeve (3), a plurality of second connecting holes (62) are formed in the upper end face of the metal matrix outer cylinder barrel (2), and the second accommodating holes (61) correspond to the second connecting holes (62) one to one.

6. A composite structural hydraulic cylinder block as set forth in claim 5, wherein: the second is accomodate hole (61) inside is equipped with second bolt (6) and overlaps second gasket (7) of establishing on second bolt (6), second bolt (6) are accomodate hole (61) from the second and are extended to inside second connecting hole (62).

7. A composite structural hydraulic cylinder block as set forth in claim 1, wherein: a plurality of positioning holes (10) are formed in the inner wall of the cylinder sleeve (3) in the ceramic matrix, a plurality of positioning strips (9) are arranged on the outer edge of the middle portion of the cylinder bottom (1) in a protruding mode, and the positioning strips (9) are clamped into the positioning holes (10) in a one-to-one correspondence mode.

8. A composite structural hydraulic cylinder block as set forth in claim 7, wherein: the positioning strip (9) is arranged obliquely downwards.

9. A composite structural hydraulic cylinder block as set forth in claim 6, wherein: and a connecting screw rod (11) is arranged at the top of the second bolt (6).