Oil cylinder body forge piece convenient for side tapping

Abstract

The utility model provides an oil cylinder body forge piece convenient for side tapping, which comprises a cylinder body, the cylinder body is provided with an axially arranged insertion hole, a piston is installed in the insertion hole for stretching, the diameter of the insertion hole is smaller than the outer diameter of the piston, and the insertion hole is formed by boring; when the piston is in the contraction position, the piston and the bottom of the insertion hole form a bottom cavity, and a side cavity is formed between the piston and the side wall; the bottom cavity is communicated with the side cavity; a straight oil inlet hole formed in the side face of the cylinder body is communicated with the side cavity. The diameter of the insertion hole is set, so that the machining allowance is provided, remachining can be carried out, and the size and the roughness of the insertion hole meet the use requirements; due to the arrangement of the side cavity and the bottom cavity, only the straight oil inlet hole communicated with the side cavity needs to be drilled in the side part of the cylinder body; hydraulic oil enters the side cavity and then flows to the bottom cavity, so that thrust to the piston is formed, and the piston rod is driven to extend out; compared with a cylinder body structure in the background art, the cylinder body structure is simple in structure and low in machining cost.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinders, in particular to an oil cylinder body forging which is convenient for side opening. Background Art

[0002] In order to ensure that the cylinder piston rod can be extended stably, an L-shaped oil inlet hole is generally opened at the rear end of the cylinder body. The part of the oil inlet hole connected to the rodless cavity is opposite to the end face of the piston.

[0003] In the above structure, the oil inlet hole has a complex structure and is not easy to process. Utility Model Content

[0004] In order to solve the technical problems in the background technology, the utility model discloses a cylinder body forging which is convenient for side opening.

[0005] The utility model provides a cylinder body forging convenient for side opening, comprising a cylinder body, an axially arranged plug hole is opened in the cylinder body, a piston is installed in the plug hole for expansion and contraction, the plug hole has a diameter smaller than the outer diameter of the piston, and is formed by boring;

[0006] When the piston is in the retracted position, it and the bottom of the plug hole form a bottom cavity, and the piston and the side wall form a side cavity;

[0007] The bottom cavity is connected to the side cavity;

[0008] A straight oil inlet hole arranged on the side of the cylinder body is communicated with the side cavity.

[0009] The diameter setting of the plug-in hole provides a processing allowance and can be reprocessed to make its size and roughness meet the use requirements; the setting of the side cavity and the bottom cavity only requires drilling a straight oil inlet hole connected to the side cavity on the side of the cylinder body; after the hydraulic oil enters the side cavity, it flows to the bottom cavity, thereby forming a thrust on the piston, driving the piston rod to extend; compared with the cylinder structure in the background technology, the utility model has a simple structure and low processing cost.

[0010] The specific structure of the side cavity is: the bottom of the plug hole is connected with an oil inlet groove, the diameter of which is larger than the plug hole; the side cavity is formed between the piston and the oil inlet groove.

[0011] Furthermore, the plug hole and the oil inlet groove are transitioned by an inclined surface.

[0012] The specific structure of the bottom cavity is that a raised bump is arranged at the bottom of the inner cavity of the cylinder body, so that the outer side of the bump forms the bottom cavity.

[0013] The oil storage capacity of the bottom cavity directly affects the stability of the oil pressure. Based on this, a further design is that the bottom cavity is annular and its cross section is U-shaped.

[0014] The transition structure between the bump and the bottom directly affects the structural strength of the bump. Based on this, a further design is that the bump and the bottom cavity are transitioned through an inclined surface.

[0015] The cylinder body is generally cylindrical, which is not convenient for side installation and fixing. Based on this, a further design is: the cylinder body is a rectangular parallelepiped, and a raised convex plate is provided on one side of the cylinder body for side installation and fixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a front sectional view of the utility model;

[0018] Figure 2 It is a left view of the utility model;

[0019] In the figure: 1, cylinder body; 2, plug hole; 3, bottom cavity; 4, side cavity; 5, oil inlet groove; 6, convex block; 7, convex plate. DETAILED DESCRIPTION

[0020] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0021] Embodiment 1:

[0022] like Figure 1 and Figure 2 As shown, the utility model discloses a cylinder body forging convenient for side opening, comprising a cylinder body 1, wherein an axially arranged plug hole 2 is opened at the center of the cylinder body 1. The piston is installed in the plug hole 2 for extension and retraction.

[0023] The diameter of the plug hole 2 is smaller than the outer diameter of the piston and is formed by boring; the diameter setting of the plug hole 2 provides a processing allowance and can be reprocessed to make its size and roughness meet the use requirements.

[0024] The bottom of the plug hole 2 is connected with an oil inlet groove 5, and the connection is transitioned by an inclined surface. The diameter of the oil inlet groove 5 is larger than the plug hole 2, so that the piston and the oil inlet groove 5 form a side cavity 4 after contraction.

[0025] The bottom of the inner cavity of the cylinder body 1 is provided with a raised bump 6 for limiting the piston contraction. The arrangement of the bump 6 forms an annular bottom cavity 3 on its outer side. The bottom cavity 3 is connected to the side cavity 4. The outer wall of the bump 6 transitions to the bottom cavity 3 through an inclined surface.

[0026] The cylinder body 1 is in the shape of a rectangular parallelepiped, and a raised convex plate 7 is provided on one side thereof. A threaded hole is drilled on the convex plate 7 to facilitate the installation and fixing of the side of the cylinder body 1.

[0027] The setting of the side cavity 4 and the bottom cavity 3 only requires drilling a straight oil inlet hole connected to the side cavity 4 on the side of the cylinder body 1; after the hydraulic oil enters the side cavity 4, it flows to the bottom cavity 3, thereby forming a thrust on the piston, driving the piston rod to extend; compared with the cylinder body 1 structure in the background technology, the utility model has a simple structure and low processing cost.

[0028] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A cylinder body forging convenient for side opening, comprising a cylinder body (1), wherein the cylinder body (1) is provided with an axially arranged plug hole (2), and a piston is installed in the plug hole (2) for extension and contraction, characterized in that: The diameter of the plug hole (2) is smaller than the outer diameter of the piston and is formed by boring; When the piston is in the retracted position, it forms a bottom cavity (3) with the bottom of the plug hole (2), and forms a side cavity (4) with the side wall; The bottom cavity (3) and the side cavity (4) are in communication; The straight oil inlet hole formed on the side of the cylinder body (1) is in communication with the side cavity (4).

2. The cylinder block forging convenient for side opening according to claim 1, characterized in that: The bottom of the plug hole (2) is connected to an oil inlet groove (5), the diameter of which is larger than that of the plug hole (2); The side cavity (4) is formed between the piston and the oil inlet groove (5).

3. The cylinder block forging for convenient side opening according to claim 2, characterized in that: The insertion hole (2) and the oil inlet groove (5) are transitioned via an inclined surface.

4. The cylinder block forging for convenient side opening according to claim 2, characterized in that: A raised bump (6) is provided at the bottom of the inner cavity of the cylinder body (1), so that the outer side of the bump (6) forms a bottom cavity (3).

5. The cylinder block forging for convenient side opening according to claim 4, characterized in that: The bottom cavity (3) is annular in shape, and its cross section is U-shaped.

6. The cylinder block forging for convenient side opening according to claim 4, characterized in that: The projection (6) and the bottom cavity (3) are transitioned via an inclined surface.

7. The cylinder block forging for convenient side opening according to claim 1, characterized in that: The cylinder body (1) is in the form of a rectangular parallelepiped, and a raised convex plate (7) is provided on one side thereof for mounting and fixing the side of the cylinder body (1).

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