CN204628862U - A kind of flanged connecting structure - Google Patents

A kind of flanged connecting structure Download PDF

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Publication number
CN204628862U
CN204628862U CN201520148304.2U CN201520148304U CN204628862U CN 204628862 U CN204628862 U CN 204628862U CN 201520148304 U CN201520148304 U CN 201520148304U CN 204628862 U CN204628862 U CN 204628862U
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pipeline
flange
pipe
connecting structure
afterbody
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于宁
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Beijing Huatsing Gas Turbine and IGCC Technology Co Ltd
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Beijing Huatsing Gas Turbine and IGCC Technology Co Ltd
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Abstract

本实用新型涉及法兰连接技术领域,提供了一种法兰连接结构。该法兰连接结构包括待连接的第一管道和第二管道,所述第一管道的尾部呈球台状,且在所述球台状尾部上开设有用于实现管道流通的中心孔;所述第二管道的尾部外围设置有法兰盘;所述第一管道的球台状尾部和压板连接,并在所述压板作用下和所述第二管道的端面处的内沿实现密封;所述压板通过紧固件和所述法兰盘连接。该法兰连接结构,可以适应加工和装配误差,从而在管接件与缸体或者是其他包含法兰结构的待连接件进行大角度装配时,不需要施加额外的装配载荷就可以保证装配位置的密封性,避免了装配结构遭受破坏。

The utility model relates to the technical field of flange connection and provides a flange connection structure. The flange connection structure includes a first pipeline and a second pipeline to be connected, the tail of the first pipeline is in the shape of a ball table, and a central hole for realizing pipeline circulation is opened on the ball table-shaped tail; the second The periphery of the tail of the pipeline is provided with a flange; the ball table-shaped tail of the first pipeline is connected to the pressure plate, and under the action of the pressure plate, it is sealed with the inner edge of the end face of the second pipeline; Firmware is connected to the flange. The flange connection structure can adapt to processing and assembly errors, so that when the pipe joint is assembled with the cylinder block or other parts to be connected that include flange structures at a large angle, the assembly position can be guaranteed without applying additional assembly loads The tightness prevents damage to the assembly structure.

Description

一种法兰连接结构A flange connection structure

技术领域technical field

本实用新型涉及法兰连接技术领域,尤其涉及一种法兰连接结构。The utility model relates to the technical field of flange connection, in particular to a flange connection structure.

背景技术Background technique

在机械设计领域存在大量用于传输流体介质的法兰连接结构,其中法兰连接面在一定压力的流体介质中必须能保持良好的连接性和密封性。例如固定在缸体上的连接法兰盘7,请参见图1,用于将缸体内的一定压力的流体介质输送至外部。由于存在加工和装配公差,管接件和缸体之间往往存在较大的倾斜角度,使得管接件不能和缸体上的法兰良好的对齐;而此种情况下,如果通过较大的螺钉拧紧力矩将法兰强行固定在缸体上,将导致缸体、法兰盘、管接件和紧固件承受额外的装配载荷,一旦变形过大则可能出现裂纹或者影响密封。In the field of mechanical design, there are a large number of flange connection structures used to transmit fluid media, in which the flange connection surfaces must be able to maintain good connection and sealing in a fluid medium with a certain pressure. For example, the connection flange 7 fixed on the cylinder body, see FIG. 1 , is used to transport the fluid medium of a certain pressure in the cylinder body to the outside. Due to processing and assembly tolerances, there is often a large inclination angle between the pipe joint and the cylinder body, so that the pipe joint cannot be well aligned with the flange on the cylinder body; The screw tightening torque will force the flange to be fixed on the cylinder body, which will cause the cylinder body, flange plate, pipe joints and fasteners to bear additional assembly loads. Once the deformation is too large, cracks may appear or the seal will be affected.

有鉴于此,亟待提出一种可以适应加工和装配误差的法兰连接结构。In view of this, it is urgent to propose a flange connection structure that can adapt to machining and assembly errors.

实用新型内容Utility model content

(一)要解决的技术问题(1) Technical problems to be solved

本实用新型要解决的技术问题就是提供一种法兰连接结构,使得其可以适应加工和装配误差。The technical problem to be solved by the utility model is to provide a flange connection structure so that it can adapt to processing and assembly errors.

(二)技术方案(2) Technical solution

为了解决上述技术问题,本实用新型提供了一种法兰连接结构,包括待连接的第一管道和第二管道,所述第一管道的尾部呈球台状,且在所述球台状尾部上开设有用于实现管道流通的中心孔;所述第二管道的尾部外围设置有法兰盘;所述第一管道的球台状尾部和压板连接,并在所述压板作用下和所述第二管道的端面处的内沿实现密封;所述压板通过紧固件和所述法兰盘连接。In order to solve the above technical problems, the utility model provides a flange connection structure, including a first pipeline and a second pipeline to be connected, the tail of the first pipeline is in the shape of a ball table, and a There is a central hole for pipeline circulation; a flange is provided on the periphery of the tail of the second pipeline; the table-shaped tail of the first pipeline is connected to the pressure plate, and under the action of the pressure plate, it is connected to the second pipeline The inner edge at the end face realizes sealing; the pressure plate is connected with the flange through a fastener.

优选地,所述第二管道的尾部为包括台阶孔的接头管段;所述第一管道的球台状尾部至少部分进入到所述接头管段的内部,并和所述接头管段的内沿实现密封。Preferably, the tail part of the second pipe is a joint pipe section including a stepped hole; the ball table-shaped tail part of the first pipe at least partially enters the interior of the joint pipe section, and realizes sealing with the inner edge of the joint pipe section.

优选地,所述法兰盘包括位于所述接头管段外围的承台;所述承台的端面处的内沿位置设置有密封垫;所述第一管道的球台状尾部的外表面和所述第二管道的端面处的内沿通过所述密封垫实现密封。Preferably, the flange includes a cap located on the periphery of the joint pipe section; a sealing gasket is provided at the inner edge of the end surface of the cap; the outer surface of the ball table-shaped tail of the first pipeline and the The inner edge at the end surface of the second pipe is sealed by the gasket.

优选地,所述紧固件穿过所述压板上的紧固件连接孔,并与所述法兰盘连接。Preferably, the fastener passes through a fastener connection hole on the pressure plate and is connected to the flange.

优选地,所述紧固件连接孔包括互相连通的圆形沉孔和锥形孔;所述圆形沉孔位于远离所述法兰盘的一侧,所述锥形孔位于靠近所述法兰盘的一侧。Preferably, the connecting hole of the fastener includes a circular counterbore and a tapered hole communicating with each other; the circular counterbore is located on the side away from the flange, and the tapered hole is located near the flange. One side of the orchid plate.

优选地,所述紧固件为紧固螺栓,所述紧固螺栓和所述圆形沉孔之间通过球形垫片连接。Preferably, the fastener is a fastening bolt, and the fastening bolt is connected to the circular counterbore through a spherical washer.

(三)有益效果(3) Beneficial effects

本实用新型的技术方案具有以下优点:本实用新型的法兰连接结构,可以适应加工和装配误差,从而在管接件与缸体或者是其他包含法兰结构的待连接件进行大角度装配时,不需要施加额外的装配载荷就可以保证装配位置的密封性,避免了装配结构遭受破坏。The technical solution of the utility model has the following advantages: the flange connection structure of the utility model can adapt to processing and assembly errors, so that when the pipe joint is assembled with the cylinder body or other parts to be connected that include the flange structure at a large angle , the tightness of the assembly position can be ensured without applying additional assembly load, and the assembly structure is avoided from being damaged.

附图说明Description of drawings

为了更清楚地说明本实用新型实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本实用新型的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

图1是现有技术的法兰连接结构示意图;Fig. 1 is a schematic diagram of a flange connection structure in the prior art;

图2是本实用新型的实施例一的法兰连接结构的结构示意图;Fig. 2 is a structural schematic diagram of the flange connection structure of Embodiment 1 of the present utility model;

图3是本实用新型的实施例一的紧固件和压板的装配示意图;Fig. 3 is a schematic diagram of the assembly of the fastener and the pressing plate of Embodiment 1 of the present utility model;

图4是本实用新型的实施例一的球形垫片和紧固件连接孔的装配示意图;Fig. 4 is a schematic diagram of the assembly of the spherical gasket and the connecting hole of the fastener in Embodiment 1 of the present utility model;

图5是本实用新型的实施例一的法兰连接结构的倾斜状态的安装示意图;Fig. 5 is an installation schematic diagram of the inclined state of the flange connection structure of Embodiment 1 of the present invention;

图6是本实用新型的实施例二的法兰连接结构的结构示意图;Fig. 6 is a schematic structural view of the flange connection structure of Embodiment 2 of the present invention;

图中:1、第一管道;2、压板;2a、圆形沉孔;2b、锥形孔;3、紧固件;4、球形垫片;5、密封垫;6、螺母;7、法兰盘。In the figure: 1, the first pipe; 2, the pressure plate; 2a, the circular counterbore; 2b, the tapered hole; 3, the fastener; 4, the spherical gasket; 5, the gasket; 6, the nut; 7, the method Orchid plate.

具体实施方式Detailed ways

下面结合附图和实施例对本实用新型的实施方式作进一步详细描述。以下实施例用于说明本实用新型,但不能用来限制本实用新型的范围。The implementation of the present utility model will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

在本实用新型的描述中,需要说明的是,术语“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本实用新型和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本实用新型的限制。此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性。In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying Any device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

本实用新型的法兰连接结构,包括待连接的第一管道1和第二管道,第一管道1的尾部呈球台状,且在所述球台状尾部上开设有用于实现管道流通的中心孔;第二管道的尾部外围设置有法兰盘7;所述第一管道1的球台状尾部和压板2连接,并在所述压板2作用下,所述第一管道1的球台状尾部的外表面和所述第二管道的端面处的内沿实现密封;所述压板2通过紧固件3和所述法兰盘7连接。本实用新型中的法兰连接结构用于管道和管道之间的连接,具体形式可以是管道和包括管道结构的缸体之间的连接,也可以仅仅是管道之间的连接,下面结合不同的实施例对本实用新型进行说明。The flange connection structure of the present utility model includes a first pipeline 1 and a second pipeline to be connected, the tail of the first pipeline 1 is in the shape of a ball table, and a central hole for realizing pipeline circulation is opened on the ball table-shaped tail; The tail periphery of the second pipeline is provided with a flange 7; the ball table-shaped tail of the first pipeline 1 is connected with the pressing plate 2, and under the action of the pressing plate 2, the outer surface of the ball table-shaped tail of the first pipeline 1 seal with the inner edge of the end face of the second pipe; the pressure plate 2 is connected with the flange 7 through a fastener 3 . The flange connection structure in the utility model is used for the connection between pipelines. The specific form can be the connection between the pipeline and the cylinder body including the pipeline structure, or it can only be the connection between the pipelines. The following combines different Examples illustrate the present invention.

实施例一Embodiment one

请参见图2,本实施例一的法兰连接结构,包括待连接的第一管道1和第二管道。其中,第一管道1为管接件,其尾部呈球台状,显然为了实现管道流通,在该球台状尾部上必须开设中心孔,该中心孔的作用即相当于流通通道的作用。第二管道设置在缸体内部,而设置在第二管道外围的法兰盘7属于缸体本体的组成部分。其中,第一管道1的球台状尾部包括两个平行的底面,且远离连接处的底面和压板2连接,并在压板2的作用下,球台状尾部的球形外表面和第二管道的端面处的内沿接触。具体地,所述第一管道1的球台状尾部至少部分会进入到第二管道的内部。其中,优选第二管道的尾部为包括台阶孔的接头管段,从而使得上述球台状尾部的球形外表面直接和该接头管段的内沿实现密封。此外,法兰盘7还包括接头管段外围的承台;所述承台的端面处的内沿位置设置有密封垫5;所述第一管道1球台状尾部的外表面和所述第二管道的端面处的内沿通过所述密封垫5实现密封。由于密封垫5在紧固力的作用下产生塑性变形,因此可以和第一管道1球台状尾部的外表面紧密贴合,从而保证密封效果。其中,密封垫5的材料的硬度小于管接件的硬度,具体可以为橡胶、树脂、铜、铝等金属或塑性较好的非金属材料。Please refer to FIG. 2 , the flange connection structure of the first embodiment includes a first pipeline 1 and a second pipeline to be connected. Wherein, the first pipeline 1 is a pipe joint, and its tail is in the shape of a ball table. Obviously, in order to realize pipeline circulation, a central hole must be provided on the ball table-shaped tail. The function of the central hole is equivalent to the effect of the circulation channel. The second pipeline is arranged inside the cylinder, and the flange 7 arranged on the periphery of the second pipeline is a component of the cylinder body. Wherein, the ball table-shaped tail of the first pipe 1 includes two parallel bottom surfaces, and the bottom surface away from the joint is connected to the pressure plate 2, and under the action of the pressure plate 2, the spherical outer surface of the ball table-shaped tail and the end surface of the second pipeline inner edge contact. Specifically, the ball table-shaped tail of the first pipeline 1 at least partially enters the interior of the second pipeline. Wherein, it is preferable that the tail part of the second pipe is a joint pipe section including a stepped hole, so that the spherical outer surface of the above-mentioned table-shaped tail part is directly sealed with the inner edge of the joint pipe section. In addition, the flange 7 also includes a platform on the periphery of the joint pipe section; the inner edge of the end surface of the platform is provided with a gasket 5; the outer surface of the ball table-shaped tail of the first pipeline 1 and the second pipeline The inner edge of the end face is sealed by the gasket 5 . Since the sealing gasket 5 is plastically deformed under the action of the tightening force, it can be closely attached to the outer surface of the ball table-shaped tail of the first pipe 1, thereby ensuring the sealing effect. Wherein, the hardness of the material of the sealing gasket 5 is smaller than that of the pipe joint, and specifically can be rubber, resin, copper, aluminum and other metals or non-metallic materials with good plasticity.

请参见图3,本实施例一中,优选在所述压板2上开设有若干紧固件连接孔,紧固件3穿过所述紧固件连接孔后与缸体的法兰盘7连接,从而带动第一管段的尾部朝缸体方向运动,进而实现第一管道1和第二管道之间的密封。其中,紧固件3优选为紧固螺栓,此时该紧固螺栓和压板2之间通过垫片连接。Please refer to Fig. 3 , in the first embodiment, preferably, a plurality of fastener connection holes are provided on the pressure plate 2, and the fastener 3 is connected to the flange 7 of the cylinder body after passing through the fastener connection holes. , so as to drive the tail of the first pipe section to move toward the cylinder body, thereby realizing the sealing between the first pipe 1 and the second pipe. Wherein, the fastening member 3 is preferably a fastening bolt, and at this time, the fastening bolt is connected to the pressure plate 2 through a gasket.

为了使得本实施例一的第一管道1的球台状尾部在任意角度倾斜时都可以和承台内的密封垫5贴合,必须保证压板2和缸体之间的正常连接。鉴于上述原因,本实施例一提供一种包括圆形沉孔2a和锥形孔2b的紧固件连接孔,请参见图4。其中,圆形沉孔2a位于锥形孔2b的上方,且与锥形孔2b连接。需要强调的是,所述圆形沉孔2a的内表面和球台的外表面形状是一样的。为了保证紧固螺栓和压板2之间的连接精度,位于紧固螺栓和压板2的圆形沉孔2a之间的垫片为球形垫片4,其上表面为平面,下表面为球形,从而和圆形沉孔2a配合。由于球形垫片4和压板2之间为球形接触,因此该球形垫片4相对压板2可以自由倾斜。当第一管道1球台状尾部在任意角度倾斜时,压板2也会随之倾斜,从而不会压坏第一管道1;与此同时,压板2上的紧固件3并不随着压板2倾斜而发生倾斜,从而压板2和缸体之间始终保持正常的连接关系,请参见图5。In order to make the ball table-shaped tail of the first pipeline 1 in the first embodiment fit the sealing gasket 5 in the bearing platform when it is inclined at any angle, the normal connection between the pressure plate 2 and the cylinder must be ensured. In view of the above reasons, the first embodiment provides a fastener connecting hole including a circular counterbore 2a and a tapered hole 2b, please refer to FIG. 4 . Wherein, the circular counterbore 2a is located above the tapered hole 2b and is connected to the tapered hole 2b. It should be emphasized that the shape of the inner surface of the circular counterbore 2a is the same as that of the outer surface of the ball table. In order to ensure the connection accuracy between the fastening bolt and the pressure plate 2, the gasket between the fastening bolt and the circular counterbore 2a of the pressure plate 2 is a spherical gasket 4, the upper surface of which is flat, and the lower surface is spherical, so that Fits with circular counterbore 2a. Due to the spherical contact between the spherical gasket 4 and the pressing plate 2 , the spherical gasket 4 can be freely tilted relative to the pressing plate 2 . When the ball table-like tail of the first pipe 1 is inclined at any angle, the pressure plate 2 will also incline accordingly, so that the first pipe 1 will not be crushed; at the same time, the fastener 3 on the pressure plate 2 does not incline with the pressure plate 2 And tilt occurs, so that the normal connection relationship is always maintained between the pressure plate 2 and the cylinder body, please refer to FIG. 5 .

实施例二Embodiment two

请参见图6,与实施例一不同的是,实施例二中第二管道外围设置有法兰盘7,且该法兰盘7是一个独立的结构,不附属于缸体或者其他装置。因此当紧固件3为螺栓时,螺栓穿过紧固件连接孔之后穿过法兰盘7,并且螺栓的另一端通过螺母6进行拧紧。Please refer to FIG. 6 , the difference from the first embodiment is that a flange 7 is provided on the periphery of the second pipeline in the second embodiment, and the flange 7 is an independent structure, not attached to the cylinder or other devices. Therefore, when the fastener 3 is a bolt, the bolt passes through the fastener connecting hole and then passes through the flange 7 , and the other end of the bolt is tightened by the nut 6 .

以上实施方式仅用于说明本实用新型,而非对本实用新型的限制。尽管参照实施例对本实用新型进行了详细说明,本领域的普通技术人员应当理解,对本实用新型的技术方案进行各种组合、修改或者等同替换,都不脱离本实用新型技术方案的精神和范围,均应涵盖在本实用新型的权利要求范围当中。The above embodiments are only used to illustrate the utility model, but not to limit the utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present utility model will not depart from the spirit and scope of the technical solutions of the present utility model. All should be included in the scope of claims of the present utility model.

Claims (6)

1. a flanged connecting structure, comprises the first pipeline to be connected and second pipe, it is characterized in that, the afterbody of described first pipeline is billiard table shape, and offers the center hole for realizing pipeline flow on described billiard table shape afterbody; The afterbody periphery of described second pipe is provided with flange plate; The billiard table shape afterbody of described first pipeline is connected with pressing plate, and along realizing sealing under described pressing plate function and in the end of described second pipe; Described pressing plate is connected with described flange plate by fastening piece.
2. flanged connecting structure according to claim 1, is characterized in that, the afterbody of described second pipe is the joint pipeline section comprising step hole; The billiard table shape afterbody of described first pipeline enters into the inside of described joint pipeline section at least partly, and and the interior edge realization sealing of described joint pipeline section.
3. flanged connecting structure according to claim 2, is characterized in that, described flange plate comprises the cushion cap being positioned at described joint pipeline section periphery; The interior of end of described cushion cap is provided with sealing gasket along position; The outer surface of billiard table shape afterbody of described first pipeline and the interior edge of the end of described second pipe realize sealing by described sealing gasket.
4. flanged connecting structure according to claim 1, is characterized in that, described fastening piece through the fastening piece attachment hole on described pressing plate, and is connected with described flange plate.
5. flanged connecting structure according to claim 4, is characterized in that, described fastening piece attachment hole comprises the circular counter bore and cone shape hole that interconnect; Described circular counter bore is positioned at the side away from described flange plate, and described cone shape hole is positioned at the side near described flange plate.
6. flanged connecting structure according to claim 5, is characterized in that, described fastening piece is clamping bolt, is connected between described clamping bolt and described circular counter bore by spherical washer.
CN201520148304.2U 2015-03-16 2015-03-16 A kind of flanged connecting structure Expired - Lifetime CN204628862U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111648738A (en) * 2020-07-01 2020-09-11 山西潞安广源工贸有限公司 Blowout-preventing automatic sealing device and blowout-preventing sealing method
CN112050000A (en) * 2020-09-28 2020-12-08 广东智慧碧管管道技术科技有限公司 A pipe flange connection structure
CN112082848A (en) * 2020-09-29 2020-12-15 中国航发长江动力有限公司 A parallel pressure plate parallelism self-adaptive adjustment device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111648738A (en) * 2020-07-01 2020-09-11 山西潞安广源工贸有限公司 Blowout-preventing automatic sealing device and blowout-preventing sealing method
CN112050000A (en) * 2020-09-28 2020-12-08 广东智慧碧管管道技术科技有限公司 A pipe flange connection structure
CN112082848A (en) * 2020-09-29 2020-12-15 中国航发长江动力有限公司 A parallel pressure plate parallelism self-adaptive adjustment device

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