Pressure steel pipe stiffening ring assembly tool

Abstract

The pressure steel pipe stiffening ring assembly tool comprises a main support, a first limiting part, a second limiting part and a jacking mechanism, and the main support is provided with a first end and a second end in the length direction; the first limiting part is located on the side, close to the first end, of the main support and comprises a limiting mechanism and a rolling mechanism, the limiting mechanism is provided with a first clamping groove allowing the side wall of the pressure steel pipe to penetrate through, and the rolling mechanism can make contact with the wall face of the pressure steel pipe and roll in the circumferential direction; the second limiting part is movably connected to the side, close to the second end, of the main support and can be movably clamped to the side, away from the first limiting part, of the pressure steel pipe; the number of the jacking mechanisms is multiple, and the multiple jacking mechanisms are arranged in the length direction of the main support at intervals. According to the pressure steel pipe stiffening ring assembly tool, the assembly efficiency of the stiffening ring can be improved, and meanwhile the manufacturing quality of a pressure steel pipe is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of penstocks in hydropower stations, and particularly to an assembly tooling for stiffening rings of penstocks. Background Art

[0002] As the water conveyance channel of a hydropower station, the penstock not only has to bear the internal pressure of high water head, but also has to overcome the seepage pressure of the mountain outside the pipe wall. Facing the diametrically opposite pressures, it is necessary to set stiffening rings on the penstock wall to enhance the strength and stability of the penstock. The stiffening rings are made according to the designed outer diameter of the penstock (the inner arc matches it). Due to the allowable deviation of the roundness of the penstock being 3D / 1000, there are often gaps when the stiffening rings are assembled on the penstock wall, and the gaps are greater than the specified 3 mm. The traditional assembly process of the stiffening ring is to weld multiple "L"-shaped clamps on the pipe wall and adjust the gaps by knocking the wedge plates. Such a method not only has low efficiency and high noise, but also the welding and cutting of the "L"-shaped clamps cause great damage to the base material of the penstock. Utility Model Content

[0003] The embodiment of this application provides an assembly tooling for stiffening rings of a penstock, which can improve the assembly efficiency of the stiffening rings and ensure the manufacturing quality of the penstock at the same time.

[0004] The assembly tooling for stiffening rings of a penstock provided by the embodiment of this application includes: a main support, which has a first end and a second end in the length direction;

[0005] A first limiting part, which is located on one side of the main support close to the first end. The first limiting part includes a limiting mechanism and a rolling mechanism. The limiting mechanism has a first clamping groove through which the side wall of the penstock can pass, and the rolling mechanism can contact the wall surface of the penstock and roll circumferentially;

[0006] A second limiting part, which is movably connected to one side of the main support close to the second end, and the second limiting part can movably engage with the side of the penstock far from the first limiting part;

[0007] A jacking mechanism, and the number of the jacking mechanisms is multiple. The multiple jacking mechanisms are arranged at intervals along the length direction of the main support.

[0008] In addition, the assembly tooling for stiffening rings of a penstock provided by the embodiment of this application may also have the following additional technical features:

[0009] In an optional solution, the limiting mechanism includes a top cross beam and an upper guiding beam. The top cross beam is fixedly connected to the first end of the main support, and a limiting beam is arranged at the end of the top cross beam far from the main support. The limiting beam is parallel to the main support;

[0010] The upper guiding beam is fixedly arranged on one side of the main support close to the first end, and the length of the upper guiding beam is less than that of the top cross beam. The opposite sides of the limiting beam, the top cross beam and the upper guiding beam form the first clamping groove.

[0011] In an alternative embodiment, the rolling mechanism includes a first guiding wheel and a second guiding wheel;

[0012] The first guiding wheel is arranged on the top cross beam, and the second guiding wheel is arranged on the upper guiding beam; the first guiding wheel can be attached to the pipe orifice of the penstock and roll along the circumferential direction of the penstock, and the second guiding wheel can be attached to the outer wall of the penstock and roll along the circumferential direction of the penstock.

[0013] In an alternative embodiment, the second limiting part includes a lower fixing clamping plate which has a second clamping groove, and the second clamping groove can be movably clamped to the pipe orifice on the side of the penstock far from the first limiting part.

[0014] In an alternative embodiment, the lower fixing clamping plate includes a steel plate and a U-shaped bolt. The second clamping groove is arranged on the steel plate, and the U-shaped bolt connects the main support and the steel plate through an adjusting nut.

[0015] In an alternative embodiment, the jacking mechanism includes a jack, and the distance between two adjacent jacks is equal to the distance between two adjacent stiffening rings on the penstock.

[0016] In an alternative embodiment, the penstock stiffening ring assembly tooling further includes a lifting lug which is fixedly arranged on the first limiting part, and a U-shaped lifting ring is penetrated through the lifting lug; the jacking amount of the jack is approximately 100 mm.

[0017] The beneficial effects of the embodiments of the present application are as follows:

[0018] This penstock stiffening ring assembly tooling can overcome the problems of low construction efficiency, high labor intensity and poor quality level when using an "L"-shaped clamp to adjust the stiffening ring in the past. This tooling can be specifically manufactured according to penstock stiffening rings of different sizes, with conventional materials, simple manufacturing and extremely convenient use. The assembled stiffening rings have excellent quality and play good economic and technical benefits for the manufacture of penstocks.

[0019] It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the penstock stiffening ring assembly tooling provided by the present application;

[0021] Figure 2 is Figure 1 Schematic diagram of the connection between the stiffening ring assembly tooling for the penstock in the middle and the penstock when in use.

[0022] Reference numerals: main support 1, first end 11, second end 12, first limiting part 2, first clamping groove 21, top cross beam 22, upper guiding beam 23, limiting beam 24, first guiding wheel 25, second guiding wheel 26, second limiting part 3, lower fixed clamping plate 31, second clamping groove 32, jacking mechanism 4, jack 41, lifting lug 5, penstock 6.

[0023] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. Detailed implementation manners

[0024] For a better understanding of the technical solutions of the present application, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0025] It should be clear that the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

[0026] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "the" and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0027] It should be understood that the term " / and / " used herein is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0028] It should be noted that the orientation terms such as "upper", "lower", "left" and "right" described in the embodiments of the present application are described from the angles shown in the accompanying drawings, and should not be construed as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element.

[0029] Such as Figure 1-2As shown in the figure, the embodiment of the present application provides a stiffening ring assembly tool for a penstock. The stiffening ring assembly tool for the penstock includes a main support 1, a first limiting part 2, a second limiting part 3, and a jacking mechanism 4. Among them, the main support 1 has a first end 11 and a second end 12 in the length direction; the first limiting part 2 is located on one side of the main support 1 close to the first end 11. The first limiting part 2 includes a limiting mechanism and a rolling mechanism. The limiting mechanism has a first clamping groove 21 through which the side wall of the penstock 6 can pass, and the rolling mechanism can contact the wall surface of the penstock 6 and roll circumferentially; the second limiting part is movably connected to one side of the main support 1 close to the second end 12, and the second limiting part 3 can be movably clamped to the side of the penstock 6 away from the first limiting part 2; the number of the jacking mechanisms 4 is multiple, and the multiple jacking mechanisms 4 are arranged at intervals along the length direction of the main support 1.

[0030] In this embodiment, the stiffening ring assembly tool for the penstock can overcome the problems of low construction efficiency, high labor intensity, and poor quality level when using an "L"-shaped clamp to adjust the stiffening ring in the past. This tool can be specifically made according to the stiffening rings of penstocks 6 with different sizes. The materials are conventional, the production is simple, and the use is extremely convenient. The quality of the assembled stiffening ring is excellent, which plays good economic and technical benefits for the production of the penstock 6.

[0031] As Figure 1-2 shown, in a specific embodiment, the limiting mechanism includes a top cross beam 22 and an upper guiding beam 23. The top cross beam 22 is fixedly connected to the first end 11 of the main support 1. A limiting beam 24 is arranged at the end of the top cross beam 22 away from the main support 1, and the limiting beam 24 is parallel to the main support 1; the upper guiding beam 23 is fixedly arranged on one side of the main support 1 close to the first end 11, and the length of the upper guiding beam 23 is less than the length of the top cross beam 22. The relative sides of the limiting beam 24, the top cross beam 22, and the upper guiding beam 23 form the first clamping groove 21.

[0032] In addition, the rolling mechanism includes a first guiding wheel 25 and a second guiding wheel 26; the first guiding wheel 25 is arranged on the top cross beam 22, and the second guiding wheel 26 is arranged on the upper guiding beam 23; the first guiding wheel 25 can fit on the pipe orifice of the penstock 6 and roll circumferentially along the penstock 6, and the second guiding wheel 26 can fit on the outer wall of the penstock 6 and roll circumferentially along the penstock 6.

[0033] As Figure 1-2 shown, in a specific embodiment, the second limiting part 3 includes a lower fixed clamping plate 31. The lower fixed clamping plate 31 has a second clamping groove 32, and the second clamping groove 32 can be movably clamped to the pipe orifice on the side of the penstock 6 away from the first limiting part 2. Specifically, the lower fixed clamping plate 31 includes a steel plate and a U-shaped bolt. The second clamping groove 32 is arranged on the steel plate, and the U-shaped bolt connects the main support 1 and the steel plate through an adjusting nut.

[0034] Specifically, structures such as the top cross beam 22, the limit beam 24, the upper guide beam 23, the lower fixed clamping plate 31, and the main support 1 in this article can all be made of channel steel. The way of fixedly connecting these structures can be welding, which not only ensures the structural strength but also has a lower cost.

[0035] As Figure 1-2 shown, in a specific embodiment, the jacking mechanism 4 includes jacks 41, and the distance between adjacent two jacks 41 is equal to the distance between adjacent two stiffening rings on the penstock 6. The penstock stiffening ring assembly tooling further includes a lifting lug 5 for hoisting the overall tooling. The lifting lug 5 is fixedly arranged on the first limiting part 2, and a U-shaped lifting ring is threaded through the lifting lug 5. The jacking amount of the jack 41 is approximately 100 mm. It should be noted that about 100 mm in this article can refer to 90 mm to 110 mm.

[0036] It should also be supplemented that when assembling the stiffening rings of the penstock 6, due to the ovality of the steel pipe body, there are often gaps between the stiffening rings and the pipe wall. If not controlled, it will seriously affect the manufacturing quality of the penstock 6. The penstock stiffening ring assembly tooling provided by the embodiment of the present application uses the jacks 41 on the tooling to jack and press the stiffening rings, and can easily adjust the roundness of the penstock 6 to the design size, thereby ensuring the tight fit between the stiffening rings and the pipe wall of the penstock 6. At the same time, the tooling is designed with a first guide wheel 25 and a second guide wheel 26, which can slide freely on the circumference of the penstock 6 to achieve the assembly accuracy requirements of the stiffening rings on the entire circumference. At least 3 sets of jacks 41 arranged on the tooling can adjust the spacing distance according to the design drawing of the penstock 6, and can achieve the effect of simultaneously adjusting multiple layers of stiffening rings on the same section of the penstock 6. For the country's vigorous development of pumped-storage power station clean energy, this tooling has significant promotion and application value, and can also be used for the manufacturing of penstocks 6 in other types of projects.

[0037] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A penstock stiffening ring assembly tool, characterized in that: include: A main support having a first end and a second end in a length direction; A first limiting portion, the first limiting portion is located on a side of the main support close to the first end, the first limiting portion comprises a limiting mechanism and a rolling mechanism, the limiting mechanism has a first clamping groove through which the side wall of the pressure steel pipe can pass, and the rolling mechanism can contact the wall surface of the pressure steel pipe and roll circumferentially; A second limiting portion, wherein the second limiting portion is movably connected to a side of the main support close to the second end, and the second limiting portion can be movably engaged with a side of the pressure steel pipe away from the first limiting portion; A jacking mechanism, wherein the number of the jacking mechanisms is multiple, and the multiple jacking mechanisms are arranged at intervals along the length direction of the main support.

2. The pressure steel pipe stiffening ring assembly tool according to claim 1 is characterized in that: The limiting mechanism comprises a top crossbeam and an upper guide beam, wherein the top crossbeam is fixedly connected to the first end of the main support, and a limiting beam is arranged at one end of the top crossbeam away from the main support, and the limiting beam is parallel to the main support; The upper guide beam is fixedly arranged on one side of the main support close to the first end, the length of the upper guide beam is smaller than the length of the top cross beam, and the first slot is formed on the opposite sides of the limiting beam, the top cross beam and the upper guide beam.

3. The pressure steel pipe stiffening ring assembly tool according to claim 2 is characterized in that: The rolling mechanism comprises a first guide wheel and a second guide wheel; The first guide wheel is arranged on the top cross beam, and the second guide wheel is arranged on the upper guide beam; the first guide wheel can be attached to the pipe mouth of the pressure steel pipe and roll along the circumference of the pressure steel pipe, and the second guide wheel can be attached to the outer wall of the pressure steel pipe and roll along the circumference of the pressure steel pipe.

4. The pressure steel pipe stiffening ring assembly tool according to any one of claims 1 to 3, characterized in that: The second limiting portion includes a lower fixed clamping plate, and the lower fixed clamping plate has a second clamping groove, and the second clamping groove can be movably clamped to the pipe opening of the pressure steel pipe away from the first limiting portion.

5. The pressure steel pipe stiffening ring assembly tool according to claim 4 is characterized in that: The lower fixed clamping plate comprises a steel plate and a U-shaped bolt, the second clamping groove is arranged on the steel plate, and the U-shaped bolt connects the main support and the steel plate through an adjusting nut.

6. The pressure steel pipe stiffening ring assembly tool according to any one of claims 1 to 3 or claim 5, characterized in that: The lifting mechanism comprises a jack, and the distance between two adjacent jacks is equal to the distance between two adjacent stiffening rings on the pressure steel pipe.

7. The pressure steel pipe stiffening ring assembly tool according to claim 6, characterized in that: The pressure steel pipe stiffening ring assembly tool also includes a lifting lug, which is fixedly arranged on the first limiting portion and is provided with a U-shaped lifting ring; the lifting amount of the jack is approximately 100 mm.

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