CN219509926U - Rear sweeping knife cylinder for rear upper machine - Google Patents

Abstract

The utility model provides a back is swept sword hydro-cylinder for back group machine, including cylinder body and piston subassembly, the cavity has been seted up in the cylinder body, and the cylinder body has been seted up first hydraulic fluid port and the second hydraulic fluid port with the cavity intercommunication, a tip movably sets up in the cavity through connecting the hydraulic fluid pipeline for piston subassembly, the one end of piston rod passes the cylinder body, the other end stretches out outside the cylinder body, the piston head is connected in the one end that the piston rod is located the cavity, the one end of keeping away from of piston rod is connected with the piston top, avoid the terminal surface of piston head to contact with cylinder body inner chamber terminal surface and lead to the oil circuit of first hydraulic fluid port to be blocked, constitute interior oil feed way between the outer peripheral surface of piston top and the perisporium of cylinder body, interior oil feed way and first hydraulic fluid port intercommunication, interior oil feed way increase the oil circuit space of first hydraulic fluid port, concave ring portion has in the cavity simultaneously, the second hydraulic fluid port and concave ring portion intercommunication, also increase the oil circuit space of first hydraulic fluid port simultaneously.

Description

Rear sweeping knife cylinder for rear upper machine

Technical Field

The disclosure relates to the technical field of hydraulic cylinders, in particular to a rear broom cutter cylinder for a rear upper machine.

Background

The back broom hydro-cylinder is the important executive component of back group machine, use back broom hydro-cylinder can promote the extrusion to sole back group department in back group machine equipment, make cloth and sole on the sole adhere, in the use, the overall execution efficiency of back group machine is influenced to parameters such as the velocity of flow and the sealed effect of the hydraulic oil of back pressure head hydro-cylinder, the velocity of hydraulic oil flow influences the overall movement speed of back broom hydro-cylinder, and when the hydro-cylinder leakproofness is poor, hydraulic oil in the hydro-cylinder flows very easily, not only can cause whole hydro-cylinder surface to have hydraulic oil spot, cause the wearing and tearing of hydro-cylinder inner wall simultaneously easily, reduce the precision and the life of hydro-cylinder.

Disclosure of Invention

The utility model aims to solve the problems and provide a rear broom cutter oil cylinder for a rear upper machine.

The technical scheme of the present disclosure is realized as follows:

the disclosure provides a rear broom cutter cylinder for a rear upper machine, comprising a cylinder body and a piston assembly;

a cavity is formed in the cylinder body, and the piston assembly comprises a piston rod and a piston head;

one end of the piston rod penetrates through one end of the cylinder body and is movably arranged in the cavity, and the other end of the piston rod extends out of the cylinder body; the piston head is connected with one end of the piston rod, which is positioned in the cavity;

the cylinder body is provided with a first oil port and a second oil port which are communicated with the cavity;

one end of the piston head, which is far away from the piston rod, is connected with the top of the piston, and an inner oil inlet path is formed between the outer peripheral surface of the top of the piston and the peripheral wall of the cylinder body and is communicated with the first oil port;

the cavity is internally provided with a concave ring part, and the second oil port is communicated with the concave ring part.

In one embodiment, the outer circumferential surface of the piston head is annularly provided with a plurality of convex ring parts which are distributed at intervals along the axial direction of the piston head;

the outer peripheral surface of the convex ring part is attached to the inner cavity wall of the cavity.

In one embodiment, the cavity forms a first port and a second port through both ends of the cylinder;

the first port is provided with a front end cover, and the second port is provided with a rear end cover;

the front end cover is provided with a through hole, the piston rod penetrates through the through hole, and the outer peripheral surface of the piston rod is attached to the inner wall of the through hole;

the first port has an inner diameter greater than the inner diameter of the cavity and the second port has an inner diameter equal to the inner diameter of the cavity.

In one embodiment, the front end cap has a cavity communicating with the through hole, the cavity wall of the cavity and the outer circumferential surface of the piston rod forming a first ring portion.

In one embodiment, the rear end cap is provided with a sealing groove on the outer peripheral surface positioned in the cavity.

In one embodiment, an inner oil return path is formed between the inner wall of the concave ring part and the peripheral wall of the cylinder body, and the second oil port is communicated with the oil return path.

In one embodiment, a sealing gasket is disposed between the front end cap and the female ring portion.

In one embodiment, the front end of the piston rod is provided with an expansion hole.

In one embodiment, two groups of connecting side plates are connected to the outer peripheral surface of the cylinder body, and the two groups of connecting side plates are symmetrically distributed with the axial direction of the cylinder body as the center.

In one embodiment, the piston rod, piston head, piston crown and collar are integrally formed.

The advantages or beneficial effects in the technical scheme at least comprise:

the back broom hydro-cylinder of this disclosure is by cylinder body and piston subassembly, wherein the cavity has been seted up in the cylinder body, first hydraulic fluid port and the second hydraulic fluid port of communicating with the cavity have been seted up to the cylinder body simultaneously, and piston subassembly includes piston rod and piston head, through the one end movably setting up in the cavity that passes the cylinder body with the one end of piston rod, the other end stretches out the cylinder body and realizes the flexible of piston rod, and the piston head is connected in the one end that the piston rod is located the cavity, when the piston rod is retracted in prior art, the terminal surface of piston head can laminate with the terminal surface of cylinder body inner chamber, result in when first hydraulic fluid port advances oil, the oil circuit can be blocked by the piston head, make oil feed speed reduce, therefore, compared with prior art, the terminal surface at piston top is laminated with the terminal surface of cylinder body inner chamber when the piston rod, make and constitute the interior oil feed way between the peripheral wall of piston top, prevent because by being blocked and result in hydraulic oil flow speed slow, can improve the internal travel speed that gets into the cylinder effectively, avoid being blocked and can lead to the phenomenon that hydraulic oil to the seepage by the shutoff to take place simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

FIG. 1 shows a schematic cross-sectional structural view of a cylinder of an embodiment of the present disclosure;

FIG. 2 shows an exploded structural schematic view of a cylinder of an embodiment of the present disclosure;

FIG. 3 shows a schematic perspective view of a cylinder according to an embodiment of the present disclosure;

FIG. 4 illustrates a perspective view of a cylinder block according to an embodiment of the present disclosure;

FIG. 5 illustrates another perspective view of a cylinder block of an embodiment of the present disclosure;

FIG. 6 shows a schematic cross-sectional structural view of a cylinder of an embodiment of the present disclosure;

FIG. 7 illustrates a perspective view of a piston assembly of an embodiment of the present disclosure;

FIG. 8 illustrates another perspective view of a piston assembly of an embodiment of the present disclosure;

FIG. 9 shows a schematic perspective view of a front end cap of an embodiment of the present disclosure;

FIG. 10 illustrates a schematic perspective view of a rear end cap of an embodiment of the present disclosure;

FIG. 11 illustrates an enlarged schematic view at A in FIG. 1 of an embodiment of the present disclosure;

FIG. 12 shows an enlarged schematic view at B in FIG. 1 of an embodiment of the present disclosure;

reference numerals: 100. a cylinder; 101. a cavity; 102. a first oil port; 103. a second oil port; 104. a first port; 105. a second port; 106. a concave ring portion; 107. deep holes; 108. connecting side plates; 200. a piston assembly; 201. a piston rod; 202. a piston head; 203. a piston top; 204. a convex ring portion; 205. expanding the hole; 300. a front end cover; 301. a through hole; 302. a cavity; 303. a first ring portion; 304. a first bolt hole; 400. a rear end cover; 401. sealing grooves; 402. a second bolt hole; 500. and a sealing gasket.

Detailed Description

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure have been shown in the accompanying drawings, it is to be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.

In addition, embodiments of the present disclosure and features of the embodiments may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It should be noted that references to "a", "an" and "the" in this disclosure are intended to be illustrative rather than limiting, those skilled in the art will understand that "one or more" is to be understood as "one or more" unless the context clearly dictates otherwise.

Referring to fig. 1-3, a rear broom cylinder for a counter includes a cylinder block 100 and a piston assembly 200. The cylinder body 100 is internally provided with a cavity 101, the cylinder body 100 is provided with a first oil port 102 and a second oil port 103 which are communicated with the cavity 101, and the expansion and contraction of the piston assembly 200 are controlled through oil respectively fed into the first oil port 102 and the second oil port 103. The piston assembly 200 includes a piston rod 201 and a piston head 202, one end of the piston rod 201 is movably disposed in the cavity 101 through one end of the cylinder 100, and the other end extends out of the cylinder 100; the piston head 202 is connected to the end of the piston rod 201 within the cavity 101. The end of the piston head 202 away from the piston rod 201 is connected with a piston top 203, and the piston top 203 is used for avoiding the fitting of the end surface of the piston head 202 with the end surface of the cavity 101, so that an oil path is blocked. The cavity 101 is internally provided with a concave ring part 106, and the second oil port 103 is communicated with the concave ring part 106.

Wherein, an inner oil inlet path is formed between the outer peripheral surface of the piston top 203 and the peripheral wall of the cylinder body 100, and is communicated with the first oil port 102; an inner oil return path is formed between the inner wall of the concave ring portion 106 and the peripheral wall of the cylinder body 100, and the second oil port 103 is communicated with the oil return path.

Based on the above structure, the first oil port 102 and the second oil port 103 are respectively connected with the hydraulic oil pipeline, when only the first oil port 102 is filled with oil, the hydraulic oil enters the inner oil inlet path through the first oil port 102, the piston assembly 200 is pushed to move transversely along with the increase of the hydraulic oil in the inner oil inlet path, the extension of the piston rod 201 is realized, the upper part of the sole is pushed and extruded through the piston rod 201, when the second oil port 103 is filled with oil and the first oil port 102 is stopped from being filled with oil, the hydraulic oil entering the inner oil return path through the second oil port 103 is gradually increased, so that the piston assembly 200 is pushed to reset, and the piston rod 201 is retracted.

In one embodiment, referring to fig. 7 and 8, the outer circumferential surface of the piston head 202 is provided with a plurality of convex ring portions 204, the plurality of convex ring portions 204 are distributed at intervals along the axial direction of the piston head 202, and grooves formed between the plurality of convex ring portions 204 are used for placing different sealing rings, and the sealing rings made of different materials such as neoprene, nitrile, fluororubber and the like can be selected according to different working temperatures. The outer peripheral surface of the collar 204 is bonded to the inner cavity wall of the cavity 101, and the sealing performance is improved by the bonding method, so that the movement accuracy of the piston assembly 200 is improved.

In one embodiment, referring to fig. 3-6, a cavity 101 is formed through both ends of the cylinder 100 to form a first port 104 and a second port 105, which are required to be opened for placement of the piston assembly 200 into the cylinder 100 due to technical limitations. The first port 104 is fitted with a front end cap 300 and the second port 105 is fitted with a rear end cap 400, the front end cap 300 and the rear end cap 400 forming a sealed cavity 101 with the cylinder 100. The front end cover 300 is provided with the through hole 301, the front end cover 300 is a transparent cover, the piston rod 201 penetrates through the through hole 301, the outer peripheral surface of the piston rod 201 is attached to the inner wall of the through hole 301, the sealing performance is further improved, and hydraulic oil is prevented from flowing out from a gap between the through hole 301 and the piston rod 201 in the extending and retracting process of the piston rod 201. The first port 104 has an inner diameter greater than the inner diameter of the cavity 101 and the second port 105 has an inner diameter equal to the inner diameter of the cavity 101.

The left and right side end surfaces of the cylinder body 100 are provided with a plurality of deep holes 107 uniformly distributed along the circumferential direction of the cylinder body 100, and simultaneously the end surfaces of the front end cover 300 and the rear end cover 400 are provided with first bolt holes 304 and second bolt holes 402 corresponding to the number of the deep holes 107, so that the front end cover 300 and the rear end cover 400 can be attached to the cylinder body 100 in a bolt connection mode

In one embodiment, referring to fig. 1, 9 and 12, the front end cap 300 has a cavity 302 in communication with the through hole 301; the inner cavity wall of the cavity 302 and the outer circumferential surface of the piston rod 201 form a first ring portion 303, and an end cap O-ring may be mounted on the first ring portion 303 for preventing hydraulic oil from leaking out from the gap between the rear end cap 400 and the cavity 101.

In one embodiment, referring to fig. 1 and 10, a seal groove 401 is formed in an outer peripheral surface of the rear cover 400 located in the cavity 101, and an end cover O-ring is also attached to the seal groove 401.

In one embodiment, referring to fig. 1, 2 and 11, a sealing gasket 500 is provided between the front end cap 300 and the concave ring portion 106, and the sealing gasket 500 is used to prevent the piston rod 201 from being scratched or eccentric, thereby improving the durability of the piston rod 201.

In one embodiment, referring to fig. 7, an expansion hole 205 is formed at the front end of the piston rod 201, and an additional connection piece is added at the piston rod 201 through the expansion hole 205, so that the length of the piston rod 201 is prolonged.

In one embodiment, referring to fig. 2, two sets of connecting side plates 108 are connected to the outer peripheral surface of the cylinder body 100, and the two sets of connecting side plates 108 are symmetrically distributed around the axial direction of the cylinder body 100, and since the mounting position angles of the cylinders are different, the connecting side plates 108 are added for fixing the cylinder body 100 through the connecting side plates 108 during mounting.

In one embodiment, referring to fig. 7 and 8, the piston rod 201, the piston head 202, the piston crown 203, and the collar 204 may be integrally formed.

It will be appreciated by those skilled in the art that the above-described embodiments are merely for clarity of illustration of the disclosure, and are not intended to limit the scope of the disclosure. Other variations or modifications will be apparent to persons skilled in the art from the foregoing disclosure, and such variations or modifications are intended to be within the scope of the present disclosure.

Claims (10)

1. A back sweep sword hydro-cylinder for back group machine, its characterized in that: comprises a cylinder body (100) and a piston assembly (200);

a cavity (101) is formed in the cylinder body (100), and the piston assembly (200) comprises a piston rod (201) and a piston head (202);

one end of the piston rod (201) is movably arranged in the cavity (101) through one end of the cylinder body (100), and the other end extends out of the cylinder body (100); the piston head (202) is connected to one end of the piston rod (201) located in the cavity (101);

the cylinder body (100) is provided with a first oil port (102) and a second oil port (103) which are communicated with the cavity (101);

one end of the piston head (202) far away from the piston rod (201) is connected with a piston top (203), an inner oil inlet path is formed between the outer peripheral surface of the piston top (203) and the peripheral wall of the cylinder body (100), and the inner oil inlet path is communicated with the first oil port (102);

the cavity (101) is internally provided with a concave ring part (106), and the second oil port (103) is communicated with the concave ring part (106).

2. The rear broom hydro-cylinder for a counter machine of claim 1 wherein: the outer peripheral surface of the piston head (202) is annularly provided with a plurality of convex ring parts (204), and the convex ring parts (204) are distributed at intervals along the axial direction of the piston head (202);

the outer peripheral surface of the convex ring part (204) is attached to the inner cavity wall of the cavity (101).

3. The rear broom hydro-cylinder for a counter machine of claim 1 wherein: the cavity (101) penetrates through two ends of the cylinder body (100) to form a first port (104) and a second port (105);

the first port (104) is provided with a front end cover (300), and the second port (105) is provided with a rear end cover (400);

the front end cover (300) is provided with a through hole (301), the piston rod (201) passes through the through hole (301), and the outer peripheral surface of the piston rod (201) is attached to the inner wall of the through hole (301);

the first port (104) has an inner diameter greater than the inner diameter of the cavity (101), and the second port (105) has an inner diameter equal to the inner diameter of the cavity (101).

4. A rear broom hydro-cylinder for a rear upper machine according to claim 3 wherein: the front end cover (300) is provided with a cavity (302) communicated with the through hole (301), and a first annular part (303) is formed by the inner cavity wall of the cavity (302) and the outer peripheral surface of the piston rod (201).

5. A rear broom hydro-cylinder for a rear upper machine according to claim 3 wherein: a sealing groove (401) is formed in the outer peripheral surface of the rear end cover (400) positioned in the cavity (101).

6. A rear broom hydro-cylinder for a rear upper machine according to claim 3 wherein: an inner oil return path is formed between the inner wall of the concave ring part (106) and the peripheral wall of the cylinder body (100), and the second oil port (103) is communicated with the inner oil return path.

7. The rear broom hydro-cylinder for a rear upper machine of claim 6 wherein: a sealing gasket (500) is arranged between the front end cover (300) and the concave ring part (106).

8. The rear broom hydro-cylinder for a counter machine of claim 1 wherein: an expansion hole (205) is formed in the front end of the piston rod (201).

9. The rear broom hydro-cylinder for a counter machine of claim 1 wherein: the cylinder body (100) is characterized in that two groups of connecting side plates (108) are connected to the outer peripheral surface of the cylinder body (100), and the two groups of connecting side plates (108) are symmetrically distributed by taking the axial direction of the cylinder body (100) as the center.

10. The rear broom hydro-cylinder for a counter machine of claim 2 wherein: the piston rod (201), the piston head (202), the piston top (203) and the convex ring part (204) are integrally formed.