Axial thick-wall adjustable expansion joint

Abstract

The utility model provides an axial thick wall adjustable expansion joint, which relates to the technical field of expansion joints and comprises an expansion joint body, a group of flange plates are mounted at two ends of the expansion joint body, a mounting plate is mounted on one side of the flange plate at the bottom of the expansion joint body through an auxiliary frame, and the mounting plate is sleeved on the expansion joint body. Wherein three fixing blocks are mounted on the surface of one flange plate, adjusting assemblies are mounted between the fixing blocks and the mounting plate, a driving mechanism is mounted in the mounting plate, and the driving mechanism is connected with the adjusting assemblies. According to the device, through cooperative use of the sleeve, the threaded rod, the synchronous wheel, the synchronous belt, the first bevel gear, the second bevel gear and the motor, an operator can conveniently and rapidly adjust the expansion joint body, the adjustment convenience is improved, the possibility of manual operation errors is reduced, meanwhile, the working intensity of the operator is reduced, and the practicability is further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to an axial thick wall adjustable expansion joint technical field, more specifically, it relates to an axial thick wall adjustable expansion joint. BACKGROUND

[0002] Expansion joint refers to the flexible element that can effectively compensate the axial deformation. For example, the expansion joint axially flexible on the welded fixed tube plate type heat exchanger shell is easily deformed, can compensate the thermal expansion difference of the pipe and shell due to the different wall temperature, reduce their axial load, thereby reducing the temperature difference stress of the pipe, tube plate and shell, avoiding causing the strength damage, instability damage and pipe pull-out damage. The expansion joint has many types, and the commonly used ones have wave shape, ring plate welding and clamping shell type structures, among which the wave shape expansion joint is most widely used, and the ring plate welding expansion joint is only suitable for normal pressure or low pressure occasions.

[0003] Based on the above, the inventor found that the existing axial thick wall expansion joint has the following problems in the adjusting process: the operator usually needs to use tools to adjust and limit multiple nuts to adapt to expansion joints of different lengths, however, this adjusting method requires the operator to twist multiple nuts one by one, and needs to rotate multiple turns to complete, which not only consumes time and effort, but also has certain operation limitations, affecting the work efficiency.

[0004] Therefore, in view of the above problems, the axial thick wall adjustable expansion joint is provided to achieve the purpose of having more practical value. INVENTION CONTENTS

[0005] The purpose and effect of the axial thick wall adjustable expansion joint are achieved by the following specific technical means:

[0006] An axial thick wall adjustable expansion joint, comprising an expansion joint body, a group of flange plates are installed at both ends of the expansion joint body, an installation plate is installed on one side of the flange plate at the bottom of the expansion joint body through an auxiliary frame, the surface of one of the flange plates is provided with three fixing blocks, an adjusting assembly is installed between the fixing blocks and the installation plate, a driving mechanism is installed in the installation plate, and the driving mechanism is connected with the adjusting assembly.

[0007] Further, the adjusting assembly comprises three sleeves installed on the top of the installation plate, a threaded rod is installed in the sleeve, and one end of the threaded rod is connected with the fixing block.

[0008] Further, three synchronous wheels are installed in the installation plate, one end of the sleeve penetrates through the installation plate and is connected with the synchronous wheel, and a synchronous belt is installed between the synchronous wheels.

[0009] Furthermore, the driving mechanism includes a first bevel gear mounted on one of the sleeves, a second bevel gear is meshed with the surface of the first bevel gear, a motor is mounted on one side of the mounting plate, and an output end of the motor is connected to the second bevel gear.

[0010] Furthermore, a protection box is installed on the surface of the motor.

[0011] Furthermore, a gasket is provided on one side of a group of flanges.

[0012] Furthermore, a plurality of bolts are installed between the flange and the gasket.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] Through the coordinated use of the sleeve, threaded rod, synchronous wheel, synchronous belt, first bevel gear, second bevel gear and motor, when the expansion joint body needs to be adjusted, the motor is started, and the motor drives the second bevel gear to rotate. Since the second bevel gear is meshed with the first bevel gear, it can drive the first bevel gear to rotate. The rotation of the first bevel gear will drive one of the sleeves to rotate. Since one end of the sleeve is connected to the synchronous wheel, it can drive the synchronous wheel to rotate. With the cooperation of the synchronous belt, it can drive other synchronous wheels to rotate, and then drive the sleeve connected to it to rotate. When the sleeve rotates, it will drive the threaded rod to rotate, so that the expansion joint body can be adjusted. It should be noted that the interior of the sleeve is provided with a thread matching the threaded rod. Through the above design, it is convenient for the operator to quickly adjust the expansion joint body, which improves the convenience of adjustment, reduces the possibility of human operating errors, and at the same time reduces the operator's workload, further improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a three-dimensional schematic diagram of an axial thick-walled adjustable expansion joint.

[0016] Figure 2 The utility model is a schematic diagram of the inner plane of an axially thick-walled adjustable expansion joint mounting plate.

[0017] Figure 3 It is a three-dimensional schematic diagram of an axially thick-walled adjustable expansion joint adjustment component of the utility model.

[0018] Figure 4 This utility model is an axial thick-walled adjustable expansion joint Figure 1 Enlarged schematic diagram of point A in the middle.

[0019] Figure 5 This utility model is an axial thick-walled adjustable expansion joint Figure 3 Enlarged schematic diagram of point B.

[0020] In the drawings, the correspondence between the component names and the drawing numbers is as follows:

[0021] 1, expansion joint body; 2, flange plate; 3, mounting plate; 4, fixed block; 5, sleeve; 6, threaded rod; 7, synchronous wheel; 8, synchronous belt; 9, first bevel gear; 10, second bevel gear; 11, motor; 12, protection box; 13, gasket; 14, bolt. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be further described in detail below with reference to the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0023] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. EMBODIMENT

[0025] As shown in the accompanying Figure 1 to the accompanying Figure 5 :

[0026] The utility model provides a kind of adjustable expansion joint of axial thick wall, including expansion joint body 1, a set of flange plate 2 is installed at the both ends of expansion joint body 1, one side of flange plate 2 located at the bottom of expansion joint body 1 is equipped with mounting plate 3 by auxiliary frame, mounting plate 3 is sleeved on expansion joint body 1, the surface of one of flange plate 2 is equipped with three fixed blocks 4, adjusting assembly is installed between fixed block 4 and mounting plate 3, driving mechanism is installed in the inside of mounting plate 3, and driving mechanism is connected with adjusting assembly.

[0027] The adjusting assembly comprises three sleeves 5 installed on the top of the mounting plate 3, a threaded rod 6 is installed in the sleeve 5, one end of the threaded rod 6 is connected with the fixed block 4, through the cooperation of the sleeve 5, the threaded rod 6, the synchronous wheel 7, the synchronous belt 8, the first bevel gear 9, the second bevel gear 10 and the motor 11, when the expansion joint body 1 needs to be adjusted, the motor 11 is started, the motor 11 drives the second bevel gear 10 to rotate, since the second bevel gear 10 is engaged with the first bevel gear 9, the first bevel gear 9 can be driven to rotate, the rotation of the first bevel gear 9 drives one of the sleeves 5 to rotate, since one end of the sleeve 5 is connected with the synchronous wheel 7, the synchronous wheel 7 can be driven to rotate, under the cooperation of the synchronous belt 8, the other synchronous wheels 7 can be driven to rotate, and then the sleeves 5 connected with the synchronous wheels 7 are driven to rotate, when the sleeve 5 rotates, the threaded rod 6 is driven to rotate, so that the expansion joint body 1 can be adjusted, it should be noted that the sleeve 5 is internally provided with threads matched with the threaded rod 6, through the above design, the operator can quickly adjust the expansion joint body 1, the convenience of adjustment is improved, the possibility of human operation error is reduced, the working strength of the operator is reduced, and the practicality is further improved.

[0028] The mounting plate 3 is internally provided with three synchronous wheels 7, one end of the sleeve 5 penetrates through the mounting plate 3 and is connected with the synchronous wheel 7, and the synchronous belt 8 is installed between the synchronous wheels 7.

[0029] The driving mechanism comprises the first bevel gear 9 installed on one of the sleeves 5, the second bevel gear 10 is engaged with the surface of the first bevel gear 9, the motor 11 is installed on one side of the mounting plate 3, and the output end of the motor 11 is connected with the second bevel gear 10.

[0030] The motor 11 is internally provided with the protection box 12, and the protection box 12 can protect the motor 11.

[0031] One side of the flange plate 2 is provided with the gasket 13.

[0032] A plurality of bolts 14 are installed between the flange plate 2 and the gasket 13.

[0033] The specific use mode and effect of the embodiment are as follows:

[0034] The utility model discloses in the use process, first confirm the integrity of the device, pipeline and equipment in the operation process, because medium flow, pressure change and other factors, will produce pressure fluctuation, axial thick wall expansion joint can disperse and reduce the stress concentration phenomenon in pipeline and equipment through the telescopic deformation of adjusting, so when needing to adjust expansion joint body 1, through the controller start motor 11, and motor 11 drives second bevel gear 10 rotation, because second bevel gear 10 and first bevel gear 9 mesh, so can drive first bevel gear 9 rotation, and first bevel gear 9 rotation will drive one sleeve 5 rotation, because the sleeve 5 one end is connected with synchronous wheel 7, can drive synchronous wheel 7 rotation, under the cooperation of synchronous belt 8, can drive other synchronous wheel 7 rotation, further drive the sleeve 5 rotation that is connected with it, and the sleeve 5 rotation will drive threaded rod 6 rotation, thereby can adjust expansion joint body 1, need to pay attention to, the inside of sleeve 5 is equipped with the screw thread that is matched with threaded rod 6, through the design, the operator can conveniently adjust expansion joint body 1 quickly, improved the convenience of adjustment, reduced the possibility of human operation error, reduced the working strength of operator, further improved practicality.

[0035] The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the present application and its practical application, and to enable others skilled in the art to understand the present application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. An axial thick-walled adjustable expansion joint comprising an expansion joint body (1), characterized in that: A set of flanges (2) are installed at both ends of the expansion joint body (1), one side of the flange (2) at the bottom of the expansion joint body (1) is installed with a mounting plate (3) through an auxiliary frame, the mounting plate (3) is sleeved on the expansion joint body (1), the surface of one of the flanges (2) is installed with three fixing blocks (4), an adjusting assembly is installed between the fixing blocks (4) and the mounting plate (3), a driving mechanism is installed in the mounting plate (3), and the driving mechanism is connected with the adjusting assembly.

2. The axial thick-walled expansion joint as claimed in claim 1, wherein: The adjusting assembly comprises three sleeves (5) installed on the top of the mounting plate (3), a threaded rod (6) is installed in the sleeve (5), and one end of the threaded rod (6) is connected with the fixing block (4).

3. The axial thick-walled adjustable expansion joint according to claim 2, characterized in that: Three synchronous wheels (7) are installed in the mounting plate (3), one end of the sleeve (5) penetrates through the mounting plate (3) and is connected with the synchronous wheel (7), and a synchronous belt (8) is installed between the synchronous wheels (7).

4. The axial thick-walled expansion joint as claimed in claim 3, wherein: The driving mechanism comprises a first bevel gear (9) installed on one of the sleeves (5), the surface of the first bevel gear (9) is engaged with a second bevel gear (10), a motor (11) is installed on one side of the mounting plate (3), and the output end of the motor (11) is connected with the second bevel gear (10).

5. The axial thick-walled adjustable expansion joint according to claim 4, characterized in that: The surface of the motor (11) is installed with a protection box (12).

6. The axial thick-walled adjustable expansion joint according to claim 5, characterized in that: One side of a set of the flanges (2) is provided with a gasket (13).

7. The axial thick-walled adjustable expansion joint according to claim 6, characterized in that: A plurality of bolts (14) are installed between the flange (2) and the gasket (13).

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