CN210003594U

CN210003594U - Reinforced oil cylinder barrel structure without welding

Info

Publication number: CN210003594U
Application number: CN201920422503.6U
Authority: CN
Inventors: 陈光星; 龚新生; 庄伟雄; 姜达全
Original assignee: LONGYAN CITY WAN TONG MACHINERY Co Ltd
Current assignee: LONGYAN CITY WAN TONG MACHINERY Co Ltd
Priority date: 2019-03-31
Filing date: 2019-03-31
Publication date: 2020-01-31
Anticipated expiration: 2029-03-31

Abstract

The utility model discloses a need not welded strenghthened type oil cylinder barrel structures like this, for solving the easy production stress concentration that has oil cylinder barrel to exist, the crackle appears, causes the oil impregnate phenomenon, again because influence product quality in order to prevent welding deformation, need process the oil cylinder barrel internal surface after the welding to increased the problem of production technology and processing cost, the utility model discloses take sheath (4) to set up upper portion outside cylinder barrel (5), go up sheath (4) upper end and cylinder barrel (5) upper end parallel and level, go up sheath (4) lower extreme and be connected with lower sheath (1) through middle sheath (3), sheath (3) and cylinder barrel (5) inside link up in the middle of oil pipe (2) passes.

Description

Reinforced oil cylinder barrel structure without welding

Technical Field

The utility model relates to an wheeled excavator part especially relates to need not welded strenghthened type oil cylinder barrel structure.

Background

At present, oil cylinder barrel structures on wheel excavators are disclosed in the market, and the oil cylinder barrel structures are structurally characterized in that the oil cylinder barrel structures are composed of an upper cylinder barrel and a lower cylinder barrel, the lower end of the thickened upper cylinder barrel is sleeved on the upper portion of the lower cylinder barrel, then the upper cylinder barrel and the lower cylinder barrel are fixedly connected through electric welding, but due to the fact that a welding technology is used, stress concentration and cracks are prone to occur in the using process, oil seepage is caused, and due to the fact that in order to prevent welding deformation from affecting product quality, the inner surface of the welded oil cylinder barrel needs to be machined, and therefore production technology and machining cost are increased.

Disclosure of Invention

The utility model aims at providing an kinds of difficult production stress concentration, difficult crackle and the oil impregnate phenomenon appear, what ability reduce cost need not welded strenghthened type oil cylinder barrel structure.

In order to achieve the purpose, the utility model discloses need not welded strenghthened type hydro-cylinder structure comprises cylinder, upper sheath, lower sheath, oil pipe and middle sheath, and upper sheath sets up on the outer upper portion of cylinder, and upper sheath upper end and cylinder upper end parallel and level go up the sheath lower extreme and are connected with the lower sheath through middle sheath, and oil pipe passes middle sheath and cylinder and inside lining up with the cylinder.

And a sealing ring is arranged at the joint between the lower end of the upper sheath and the middle sheath, and a sealing ring is arranged at the joint between the upper end of the lower sheath and the middle sheath.

And a hole for the oil pipe to pass through is formed in the cylinder barrel.

And a hole for the oil pipe to pass through is formed in the middle sheath.

The lower end surface of the upper sheath is arranged into a raised step shape, so that the lower end surface of the upper sheath is conveniently matched with a step shape concave shape on the upper end surface of the middle sheath.

The upper end surface of the lower sheath is arranged into a raised ladder shape, so that the lower end surface of the lower sheath is conveniently matched with the ladder shape on the lower end surface of the middle sheath in a concave shape.

The utility model discloses need not welded strenghthened type oil cylinder barrel structure, can also constitute by cylinder, oil pipe and sheath, with the sheath suit on the outer upper portion of cylinder, make sheath upper end and cylinder upper end parallel and level, be provided with the sealing washer between sheath and cylinder, oil pipe passes sheath and cylinder and link up with the cylinder is inside.

And a hole for the oil pipe to pass through is formed in the cylinder barrel.

And a hole for the oil pipe to pass through is formed in the sheath.

And arranging the sealing rings in the jackets at two sides of the oil pipe.

After adopting this kind of structure, because go up the sheath and set up the outer upper portion of cylinder, go up sheath upper end and cylinder upper end parallel and level, go up the sheath lower extreme and be connected with lower sheath through middle sheath, oil pipe passes middle sheath and cylinder and link up with the cylinder is inside. Thereby achieving the purposes of not easily generating stress concentration, not easily generating cracks and oil leakage phenomena and reducing the cost.

Drawings

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

Fig. 1 is the utility model discloses need not the main schematic diagram of cutting apart of welded strenghthened type oil cylinder barrel structure.

Fig. 2 is a main cross-sectional view of another embodiments of the reinforced oil cylinder barrel structure without welding of the present invention.

In the figure: 1. the oil pipe is provided with a lower sheath 2, an oil pipe 3, an intermediate sheath 4, an upper sheath 5, a cylinder 6, a sealing ring 7 and a sheath.

Detailed Description

The attached figure 1 shows that the reinforced oil cylinder barrel structure without welding of the utility model consists of a cylinder barrel 5, an upper sheath 4, a lower sheath 1, an oil pipe 2 and a middle sheath 3, wherein the upper sheath 4 is arranged at the upper part outside the cylinder barrel 5, the upper end of the upper sheath 4 is flush with the upper end of the cylinder barrel 5, the lower end of the upper sheath 4 is connected with the lower sheath 1 through the middle sheath 3, and the oil pipe 2 is communicated with the inside of the cylinder barrel 5 through the middle sheath 3 and the cylinder barrel 5; a sealing ring 6 is arranged at the joint between the lower end of the upper sheath 4 and the middle sheath 3, and a sealing ring 6 is arranged at the joint between the upper end of the lower sheath 1 and the middle sheath 3; a hole for the oil pipe 2 to pass through is formed in the cylinder barrel 5; a hole for the oil pipe 2 to pass through is arranged on the middle sheath 3; the lower end surface of the upper sheath 4 is arranged into a raised step shape, so that the lower end surface of the upper sheath is conveniently matched with a step shape concave shape on the upper end surface of the middle sheath 3; the upper end surface of the lower sheath 1 is arranged into a raised ladder shape, so that the lower end surface of the lower sheath can be conveniently matched with the ladder shape on the lower end surface of the middle sheath 3 in a concave shape.

The attached figure 2 shows that the utility model can be formed by a cylinder 5, an oil pipe 2 and a sheath 7 without a welded reinforced oil cylinder barrel structure, the sheath 7 is sleeved on the upper part outside the cylinder 5, so that the upper end of the sheath 7 is flush with the upper end of the cylinder 5, a sealing ring 6 is arranged between the sheath 7 and the cylinder 5, and the oil pipe 2 passes through the sheath 7 and the cylinder 5 to be communicated with the inside of the cylinder 5; a hole for the oil pipe 2 to pass through is formed in the cylinder barrel 5; a hole for the oil pipe 2 to pass through is arranged on the sheath 7; the sealing rings 6 are arranged in the sheaths 7 on both sides of the oil pipe 2.

Claims

reinforced oil cylinder barrel structures without welding are characterized by consisting of a cylinder barrel (5), an upper sheath (4), a lower sheath (1), an oil pipe (2) and a middle sheath (3), wherein the upper sheath (4) is arranged on the outer upper portion of the cylinder barrel (5), the upper end of the upper sheath (4) is flush with the upper end of the cylinder barrel (5), the lower end of the upper sheath (4) is connected with the lower sheath (1) through the middle sheath (3), and the oil pipe (2) penetrates through the middle sheath (3) and the cylinder barrel (5) to be communicated with the interior of the cylinder barrel (5).
2. The reinforced oil cylinder barrel structure without welding of claim 1, wherein: a sealing ring (6) is arranged at the joint between the lower end of the upper sheath (4) and the middle sheath (3), and a sealing ring (6) is arranged at the joint between the upper end of the lower sheath (1) and the middle sheath (3).
3. The reinforced oil cylinder barrel structure without welding of claim 1, wherein: and a hole which is convenient for the oil pipe (2) to pass through is arranged on the cylinder barrel (5).
4. The reinforced oil cylinder barrel structure without welding of claim 1, wherein: and a hole for the oil pipe (2) to pass through is formed in the middle sheath (3).
5. The reinforced oil cylinder barrel structure without welding of claim 1, wherein: the lower end face of the upper sheath (4) is arranged to be in a raised step shape, so that the lower end face of the upper sheath is conveniently matched with the step shape concave shape on the upper end face of the middle sheath (3).
6. The reinforced oil cylinder barrel structure without welding of claim 1, wherein: the upper end surface of the lower sheath (1) is arranged to be in a raised step shape, so that the lower end surface of the lower sheath is conveniently matched with the step shape on the lower end surface of the middle sheath (3) in a concave shape.
7, need not welded strenghthened type oil cylinder barrel structure, characterized in that comprises cylinder (5), oil pipe (2) and sheath (7), with sheath (7) suit on the outer upper portion of cylinder (5), make sheath (7) upper end and cylinder (5) upper end parallel and level, be provided with sealing washer (6) between sheath (7) and cylinder (5), oil pipe (2) pass sheath (7) and cylinder (5) and link up with cylinder (5) inside.
8. The reinforced oil cylinder barrel structure without welding of claim 7, wherein: and a hole which is convenient for the oil pipe (2) to pass through is arranged on the cylinder barrel (5).
9. The reinforced oil cylinder barrel structure without welding of claim 7, wherein: the sheath (7) is provided with a hole for the oil pipe (2) to pass through.
10. The reinforced oil cylinder barrel structure without welding of claim 7, wherein: and arranging the sealing ring (6) in the sheath (7) at two sides of the oil pipe (2).