A device for installing and positioning a cylinder and blades

Abstract

The present invention provides a device for installing and positioning a cylinder and blades, and relates to the field of manufacturing internal structural parts of large containers, including a bottom platform, a blade support plate, a blade baffle, a center cylinder and a pressure ring; the installation and positioning of the blades and the cylinder can be achieved through the positioning device, thereby improving product manufacturing efficiency; after the blades and the cylinder are installed and positioned, welding of the product can be achieved without damaging the positioning device, thereby improving the rigidity of the product, and reducing the occurrence of cylinder deformation caused by a large amount of welding in the cylinder and blade assembly structure, thereby providing an effective solution for controlling the welding dimensional deformation of large-size thin-walled products, and thereby facilitating promotion and use in production workshops.

Description

Technical Field

[0001] The invention belongs to the field of manufacturing internal structural parts of large containers, and in particular relates to a device for installing and positioning a cylinder and blades. Background Art

[0002] At present, in the field of manufacturing internal structural parts of large containers, the internal structural parts are mostly designed in the shape of large-sized cylinders, and the guide vanes inside the cylinder mostly adopt a "cross" or "M-shaped" structure. For the internal structural parts of large containers adopting this design, the blades do not have an ideal guiding effect on the circulating liquid or gas, and turbulence is prone to occur. In addition, the large-sized thin-walled structure of the cylinder is difficult to control welding deformation. If the guide vanes are installed with poor accuracy relative to the cylinder, and the installation position deviation between two adjacent guide vanes is large, the blades will reduce the guiding effect of the flowing liquid or gas, affecting the use function of the device.

[0003] The device structure for installing and positioning the cylinder and blades in the prior art is relatively complex, the manufacturing cost is high, the use process is cumbersome and the positioning effect is not ideal. If the cylinder and blades cannot be prevented from deformation and accurately positioned during the welding process, large welding errors will result, thereby affecting the quality of the cylinder and blade assembly structure. Summary of the invention

[0004] The object of the present invention is to provide a device for installing and positioning a cylinder and blades to solve the problems raised in the above-mentioned background technology.

[0005] A cylinder and blade assembly structure is designed according to actual production and manufacturing requirements, including a bottom inner cylinder, bottom blades, an outer cylinder, a top inner cylinder and a top blade, wherein the top inner cylinder is located at the inner top end of the outer cylinder, the bottom inner cylinder is located at the inner bottom end of the outer cylinder, the top inner cylinder is located above the bottom inner cylinder, the top blades are located between the top inner cylinder and the outer cylinder, and the bottom blades are located between the bottom inner cylinder and the outer cylinder.

[0006] The outer cylinder, the top inner cylinder and the bottom inner cylinder are all cylindrical in shape, the central axes of the outer cylinder, the top inner cylinder and the bottom inner cylinder coincide with each other, the outer cylinder includes two first semi-cylindrical bodies, the top inner cylinder includes two second semi-cylindrical bodies, the bottom inner cylinder includes two third semi-cylindrical bodies, the first semi-cylindrical bodies, the second semi-cylindrical bodies and the third semi-cylindrical bodies are all Hough forms, and the Hough surfaces of the outer cylinder, the top inner cylinder and the bottom inner cylinder are on the same plane.

[0007] The shapes of the first semi-cylindrical body, the second semi-cylindrical body and the third semi-cylindrical body are all semi-cylindrical, and the outer cylinder is assembled by fitting and installing the half surfaces of the two first semi-cylindrical bodies, the top inner cylinder is assembled by fitting and installing the half surfaces of the two second semi-cylindrical bodies, and the bottom inner cylinder is assembled by fitting and installing the half surfaces of the two third semi-cylindrical bodies, wherein the half surfaces are the joining surfaces of the two first semi-cylindrical bodies or the two second semi-cylindrical bodies or the two third semi-cylindrical bodies.

[0008] The top blade and the bottom blade are both crescent-shaped.

[0009] The thickness of the middle part of the top blade and the bottom blade is greater than that of the two ends. The two ends of the top blade and the bottom blade are gradually sharpened relative to the middle part. Both side surfaces of the top blade and the bottom blade are arc curved surfaces.

[0010] Through the curved surface on the bottom blade and the installation angle limitation, the liquid or gas passing through the bottom blade can produce a clockwise or counterclockwise rotation function, and the bottom blade can realize a propeller-like function. Through the crescent-shaped curved surface on the top blade, the liquid or gas passing through the top blade can be smooth, preventing turbulence.

[0011] In order to better describe the positional relationship between the top blade and the top inner cylinder and the outer cylinder, and the positional relationship between the bottom blade and the outer cylinder, four center lines are marked on the two end ports of the outer cylinder, the top inner cylinder and the bottom inner cylinder, wherein the four center lines are defined as taking the Hough surface of the outer cylinder, the top inner cylinder and the bottom inner cylinder as the starting zero position and marking lines every 90°, that is, in the diameter direction of the two end ports of the outer cylinder, the top inner cylinder and the bottom inner cylinder, the cylinder body is divided into 360° equal parts, and each equal division corresponds to an angle of 90°, and 4 four center lines are marked on each end port of the outer cylinder, the top inner cylinder and the bottom inner cylinder.

[0012] One of the four center lines on the half surface of the outer cylinder, the top inner cylinder and the bottom inner cylinder is defined as the reference four center line; one of the four center lines perpendicular to the reference four center line is defined as the positioning four center line; one of the top blades located between the top inner cylinder and the outer cylinder is defined as the reference top blade, and one of the bottom blades located between the bottom inner cylinder and the outer cylinder is defined as the reference bottom blade; the top view projection line of the top end of the top blade is defined as the center line of the top blade, and the top view projection line of the top end of the bottom blade is defined as the center line of the bottom blade; Figure 3 As shown, the vertical distance of the intersection of the center line of the reference bottom blade and the bottom inner tube relative to the reference four center lines of the bottom inner tube is set to L1, and the angle between the center line of the reference bottom blade and the reference four center lines of the bottom inner tube is set to a; Figure 2As shown, the included angle between the center line of the reference top blade and the positioning four center lines of the top inner tube is b.

[0013] The vertical distance L1 of the intersection of the center line of the reference bottom blade and the bottom inner tube relative to the reference four center lines of the bottom inner tube is 100-600 mm, and the angle a of the center line of the reference bottom blade relative to the reference four center lines of the bottom inner tube is 0-45°.

[0014] The included angle b between the center line of the reference top blade and the positioning center line of the top inner tube is 0 to 45 degrees.

[0015] The number of the top blades is N, where N is greater than 1; the number of the bottom blades is M, where M is greater than 1; the top blades are distributed annularly between the top inner cylinder and the outer cylinder; and the bottom blades are distributed annularly between the bottom inner cylinder and the outer cylinder.

[0016] By limiting the position between the blade and the cylinder, by setting the liquid or gas to flow from the top blade to the bottom blade, or understanding that the liquid or gas flows from the top of the outer cylinder to the bottom, when in use, the port of the top inner cylinder is blocked by corresponding technical means, so that the liquid or gas can only pass between the top inner cylinder and the outer cylinder, and the top blade can guide the passing liquid or gas to prevent the liquid or gas from turbulent flow. By technical means, the bottom port of the top inner cylinder and the top port of the bottom inner cylinder can be sealed and connected, so that the liquid or gas can only pass between the bottom inner cylinder and the outer cylinder, and the bottom blade can guide the passing liquid or gas, and by limiting the installation position between the blade and the cylinder, the curved surface and installation angle on the bottom blade can make the liquid or gas passing through the bottom blade rotate clockwise or counterclockwise, wherein the bottom inner cylinder and the bottom blade serve as an additional secondary guide structure, further improving the guiding effect of the blade on the liquid or gas.

[0017] The bottom end surface of the bottom inner tube and the bottom end surface of the outer tube are in the same plane, and the top end surface of the top inner tube and the top end surface of the outer tube are in the same plane.

[0018] In order to prevent the occurrence of inaccurate installation precision when preparing the above-mentioned cylinder and blade assembly structure, the present invention provides a cylinder and blade installation positioning device, including a bottom platform, a blade support plate, a blade baffle, a center cylinder and a pressure ring;

[0019] The bottom platform comprises a first platform, a first cylinder, a plurality of inner positioning blocks, a plurality of outer positioning blocks and a plurality of first bottom plates, the plurality of inner positioning blocks are installed in a circular array above the first platform, the plurality of outer positioning blocks are installed in a circular array above the first platform, the first cylinder is installed between the inner positioning blocks and the outer positioning blocks of the circular array, the first bottom plate is located above the first cylinder, and the blade support plate and the blade baffle are detachably installed above the first bottom plate;

[0020] The central cylinder comprises a first circular ring, a second circular cylinder, a top blade inner ring positioning cylinder and a top blade outer ring positioning cylinder, one end of the second circular cylinder is located inside the first circular ring, the top blade inner ring positioning cylinder and the top blade outer ring positioning cylinder are both located above the first circular ring, an inner ring notch groove is provided on the upper part of the top blade inner ring positioning cylinder, and an outer ring notch groove is provided on the upper part of the top blade outer ring positioning cylinder;

[0021] The pressure ring comprises a second circular ring and an inverted positioning cylinder, wherein the inverted positioning cylinder is located below the second circular ring, and a positioning notch groove is formed at the lower part of the inverted positioning cylinder.

[0022] Furthermore, the shapes of the inner positioning blocks and the outer positioning blocks are both stepped, the number of the inner positioning blocks and the number of the outer positioning blocks are both more than three, the center of the circular array formed by the inner positioning blocks is the same as the center of the circular array formed by the outer positioning blocks, and the diameter of the circular array formed by the outer positioning blocks is greater than the diameter of the circular array formed by the inner positioning blocks.

[0023] The inner positioning blocks of the annular array are used to install and position the bottom inner cylinder, and the outer positioning blocks of the annular array are used to install and position the outer cylinder, so that the central axes of the bottom inner cylinder and the outer cylinder can coincide with each other.

[0024] The first cylinder is in the shape of a hollow cylinder, and the center of the first cylinder projected on the first platform in a top view is the same as the center of the annular array formed by the inner positioning blocks and the center of the annular array formed by the outer positioning blocks.

[0025] Further, the number of the first bottom plates is greater than one, the number of the first bottom plates is the same as the number of the bottom blades, and a plurality of the first bottom plates are installed on the first cylinder in a circular array.

[0026] The first bottom plate is provided with a bottom blade positioning groove, and the number of the bottom blade positioning grooves on each first bottom plate is 1. The shape of the bottom blade positioning groove matches the shape of the lower end of the bottom blade.

[0027] One of the first bottom plates is defined as the reference first bottom plate, the bottom blade positioning groove on the reference first bottom plate is defined as the reference bottom blade positioning groove, the center line of the reference bottom blade positioning groove on the reference first bottom plate is set to L2, the angle between the center line L2 of the reference bottom blade positioning groove and the reference four center lines of the bottom inner tube is a, which is the same as the angle between the center line of the reference bottom blade and the reference four center lines of the bottom inner tube. The vertical distance between the intersection of the center line L2 of the reference bottom blade positioning groove and the bottom inner tube and the reference four center lines of the bottom inner tube is L1, which is the same as the vertical distance between the intersection of the center line of the reference bottom blade and the bottom inner tube and the reference four center lines of the bottom inner tube.

[0028] After the position of the reference first bottom plate is determined, the positions of the remaining first bottom plates correspond to the positions of the bottom blades.

[0029] Furthermore, the blade support plate includes an arc positioning plate and a first flat plate, the arc positioning plate is located above the first flat plate and connected to the first flat plate, a blade support plate and a blade baffle are installed on each first bottom plate, and an arc surface is provided on one side of the arc positioning plate.

[0030] The shape of the arc surface on one side of the arc positioning plate matches the shape of the middle area of ​​one side of the bottom blade.

[0031] Furthermore, the blade baffle includes a baffle and a second flat plate, and the baffle is located above the second flat plate and connected to the second flat plate.

[0032] The baffle is in the shape of a right-angled trapezoid, and a right plane of the baffle is in point contact with a middle area of ​​the other side curved surface of the bottom blade.

[0033] The lower end sharp corner of the bottom blade is embedded in the bottom blade positioning groove in the first bottom plate, and the bottom blade is installed and positioned between the blade support plate and the blade baffle. A blade support plate and a blade baffle on each of the first bottom plates can realize the clamping and positioning of a bottom blade.

[0034] Furthermore, a reinforcing rib plate is provided between the first platform and the first bottom plate, the reinforcing rib plate is located on the outside of the first cylinder, and two ends of the reinforcing rib plate are respectively connected to the first platform and the first bottom plate.

[0035] The reinforcing rib plate is used to improve the stability between the first bottom plate and the first platform.

[0036] Furthermore, the blade support plate on the first bottom plate is connected to the blade baffle plate on another adjacent first bottom plate via a connecting rod;

[0037] The connecting rod includes a U-shaped block, a rotating rod, a top support rod and an angle tube. Both ends of the angle tube are provided with internal threads, one end of the top support rod is provided with an external thread matching the internal thread of the angle tube, and the other end of the top support rod is a step shaft structure; the U-shaped block is U-shaped, and a through hole is provided at the bottom of the U-shaped block to cooperate with the step shaft structure of the top support rod; the rotating rod is connected to the top support rod.

[0038] By rotating the rotating rod forward and backward, the top support rod can be rotated forward and backward relative to the angle tube. Due to the threaded connection characteristics, the top support rod can be extended / retracted relative to the angle tube. The through hole in the U-shaped block is cooperatively connected with the step shaft of the top support rod. The U-shaped block can achieve a fixed-axis rotation function relative to the step shaft in the top support rod, and the U-shaped block can also achieve an extension / retraction function relative to the angle tube. The blade support plate on the first bottom plate and the adjacent blade baffle on another first bottom plate are contacted and connected through the U-shaped block in the connecting rod. By rotating the rotating rod forward and backward, the connecting rod between the blade support plate and the blade baffle can achieve a tightening / retraction function.

[0039] Furthermore, the central tube further comprises a plurality of support plates, a plurality of bottom inner tube support plates and a plurality of first support tubes, the support plates are located between the two first circular rings, the central axis of the first circular ring coincides with the central axis of the second circular cylinder, the central axis of the top blade inner ring positioning cylinder and the central axis of the top blade outer ring positioning cylinder;

[0040] The bottom inner cylinder support plate annular array is installed on the outer bottom of the second cylinder;

[0041] The first supporting tube is located at the inner top end of the second cylinder.

[0042] The first support tube is installed at the inner top of the second cylinder to support the central cylinder.

[0043] The number of the support plate, the bottom inner tube support plate and the first support tube is more than two.

[0044] The second cylinder of the central cylinder is placed on the bottom inner cylinder by means of the bottom inner cylinder support plate on the second cylinder, so that the second cylinder and the bottom inner cylinder can be on the same central axis, and the top blade inner ring positioning cylinder and the top blade outer ring positioning cylinder can also be on the same central axis.

[0045] Further, the shapes of the inner ring notch groove and the outer ring notch groove are matched with the shape of the lower end of the top blade, and the top blade inner ring positioning cylinder is located inside the top blade outer ring positioning cylinder and the central axes coincide with each other;

[0046] The number of the inner circle notch grooves is the same as the number of the outer circle notch grooves, and the number of the inner circle notch grooves is the same as the number of the top blades;

[0047] One of the inner ring notch grooves is defined as the reference inner ring notch groove, and the angle between the center line of the reference inner ring notch groove and the positioning four center lines of the top inner tube is b, which is the same as the angle between the center line of the reference top blade and the positioning four center lines of the top inner tube.

[0048] Similarly, one of the outer ring notch grooves is defined as the reference outer ring notch groove, and the angle between the center line of the reference outer ring notch groove and the four positioning center lines of the top inner tube is b, which is the same as the angle between the center line of the reference top blade and the four positioning center lines of the top inner tube.

[0049] The center line of the reference inner circle notch groove and the center line of the reference outer circle notch groove are on the same straight line, and the inner circle notch groove and the outer circle notch groove are respectively opened in a circular array on the top blade inner circle positioning cylinder and the top blade outer circle positioning cylinder, and correspond to the position of the top blade; during installation, the reference top blade is aligned and embedded in the reference inner circle notch groove and the reference outer circle notch groove corresponding to its position, and accordingly, the installation position of other top blades is determined accordingly.

[0050] Furthermore, the pressure ring further comprises a plurality of top inner cylinder support plates and a plurality of second support tubes, the central axis of the second circular ring coincides with the central axis of the inverted positioning cylinder, and the top inner cylinder support plates are installed in an annular array in the second circular ring;

[0051] The shape of the positioning notch groove matches the shape of the upper end of the top blade.

[0052] The number of the positioning notch grooves is the same as the number of the top blades, and the annular array of the positioning notch grooves is opened at the lower part of the inverted positioning tube.

[0053] One of the positioning notches is defined as the reference positioning notch, and the included angle b between the center line of the reference positioning notch and the positioning four center lines of the top inner tube is the same as the included angle between the center line of the reference top blade and the positioning four center lines of the top inner tube. The position of the positioning notch corresponds to the position of the top blade. When installing, align the reference top blade with the reference inner ring notch, the reference outer ring notch and the reference positioning notch, and accordingly, the installation positions of other top blades are determined accordingly.

[0054] The second supporting tube is located on the second circular ring.

[0055] The second support tube is installed on the second circular ring to support the pressure ring.

[0056] The second ring is in the shape of a ring, and the inner diameter of the second ring is the same as the inner diameter of the top inner cylinder. The second ring in the pressure ring is placed on the top inner cylinder through the top inner cylinder support plate inside the second ring, so that the central axis of the second ring and the central axis of the top inner cylinder coincide with each other.

[0057] The number of the top inner tube support plate and the number of the second support tube are both more than two.

[0058] Beneficial effects:

[0059] (1) The present invention provides a device for installing and positioning a cylinder body and blades, comprising a bottom platform, a blade support plate, a blade baffle, a center cylinder and a pressure ring; the bottom inner cylinder and the outer cylinder are placed on the bottom platform, and the coaxial positioning of the bottom inner cylinder and the outer cylinder can be quickly achieved through the inner positioning and outer positioning blocks; the lower end sharp corner of the bottom blade is embedded in the bottom blade positioning groove in the first bottom plate, and the installation angle position of the bottom blade relative to the bottom inner cylinder and the outer cylinder can be quickly achieved; the center cylinder is placed on the bottom inner cylinder, and the coaxial positioning of the center cylinder and the bottom inner cylinder can be quickly achieved through the bottom inner cylinder support plate; the top inner cylinder is placed on the center cylinder to achieve coaxial positioning, and the top blade is installed in the outer ring notch groove on the top blade outer ring positioning cylinder and the inner ring notch groove on the top blade inner ring positioning cylinder, and the pressure ring is installed above the top blade, and the positioning notch groove in the inverted positioning cylinder is fitted with the top blade, so that the position relationship between the top blade and the top inner cylinder can be quickly achieved.

[0060] (2) The present invention provides a device for installing and positioning a cylinder and blades. The positioning device can realize the installation and positioning of the blades and the cylinder, thereby improving the product manufacturing efficiency. After the blades and the cylinder are installed and positioned, the product can be welded without damaging the positioning device, thereby improving the rigidity of the product and reducing the occurrence of cylinder deformation caused by a large amount of welding in the cylinder and blade assembly structure. This provides an effective solution for controlling the welding dimensional deformation of large-size thin-walled products, and is conducive to the promotion and use of the product in production workshops.

[0061] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 It is a schematic diagram of the main structure of a cylinder and blade assembly structure;

[0063] Figure 2 for Figure 1 Middle section view along AA direction;

[0064] Figure 3 for Figure 1Middle section view along BB direction;

[0065] Figure 4 It is a schematic diagram of the main structure of the assembly structure of the cylinder and the blades using the positioning device;

[0066] Figure 5 for Figure 4 Middle C-direction view;

[0067] Figure 6 for Figure 4 Middle section view along DD direction;

[0068] Figure 7 This is a partial enlarged schematic diagram of the main view of the bottom platform;

[0069] Figure 8 This is a schematic diagram of the bottom platform structure from a bird's-eye view;

[0070] Fig. 9 for Figure 7 A partial enlarged schematic diagram of

[0071] Fig.10 for Figure 8 A partial enlarged schematic diagram of

[0072] Fig.11 A schematic diagram of the structure for installing the bottom blade between the blade support plate and the blade baffle;

[0073] Fig.12 It is a schematic diagram of the positional relationship between the connecting rod, the blade support plate and the blade baffle;

[0074] Fig.13 Schematic diagram of the structure of the connecting rod;

[0075] Fig.14 It is a schematic diagram of the main structure of the blade support plate;

[0076] Fig.15 It is a schematic diagram of the top view structure of the blade support plate;

[0077] Fig.16 It is a schematic diagram of the main structure of the blade baffle;

[0078] Fig.17 Schematic diagram of the top view of the blade baffle;

[0079] Fig.18 This is the main structural diagram of the center tube;

[0080] Fig.19 The top view structural diagram of the central tube;

[0081] Fig. 20 for Fig.18 Middle view along E direction;

[0082] Fig.21 It is a schematic diagram of the main structure of the pressure ring;

[0083] Fig. 22 Schematic diagram of the top view of the pressure ring;

[0084] Fig.23 for Fig.21 The view along the F direction;

[0085] The reference numerals are as follows: 1-1, bottom inner cylinder; 1-2, bottom blades; 1-3, outer cylinder; 1-4, top inner cylinder; 1-5, top blades; 2, bottom platform; 2-1, first platform; 2-2, inner positioning block; 2-3, first cylinder; 2-4, first bottom plate; 2-5, reinforcing rib plate; 2-6, outer positioning block; 2-4-1, bottom blade positioning groove; 2-4-2, first cone pin hole; 2-4-3, first screw hole; 3, blade support plate; 3-1, arc positioning plate; 3-2, first flat plate; 3-2-1, second cone pin hole; 3-2-2, second screw hole; 4, blade baffle; 4-1, baffle; 4-2, second flat plate; 4-2 -1, the third cone pin hole; 4-2-2, the third screw hole; 5, the bolt with gasket; 6, the cone pin; 7, the connecting rod; 7-1, the U-shaped block; 7-2, the rotating rod; 7-3, the top support rod; 7-4, the angle tube; 8, the center tube; 8-1, the first circular ring; 8-2, the support plate; 8-3, the second circular cylinder; 8-4, the bottom inner cylinder support plate; 8-5, the top blade outer ring positioning tube; 8-5-1, the outer ring notch groove; 8-6, the top blade inner ring positioning tube; 8-7, the first supporting tube; 9, the pressure ring; 9-1, the second circular ring; 9-2, the inverted positioning tube; 9-2-1, the positioning notch groove; 9-3, the second supporting tube; 9-4, the top inner cylinder support plate. DETAILED DESCRIPTION

[0086] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0087] In the drawings, components with the same structure are indicated by the same numerical reference numerals, and components with similar structures or functions are indicated by similar numerical reference numerals. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of the components is appropriately exaggerated in some places in the drawings.

[0088] Example

[0089] like Figures 1 to 3As shown, a cylinder and blade assembly structure is designed according to actual production and manufacturing requirements, including a bottom inner cylinder 1-1, a bottom blade 1-2, an outer cylinder 1-3, a top inner cylinder 1-4 and a top blade 1-5, the top inner cylinder 1-4 is located at the inner top end of the outer cylinder 1-3, the bottom inner cylinder 1-1 is located at the inner bottom end of the outer cylinder 1-3, the top inner cylinder 1-4 is located above the bottom inner cylinder 1-1, the top blade 1-5 is located between the top inner cylinder 1-4 and the outer cylinder 1-3, and the bottom blade 1-2 is located between the bottom inner cylinder 1-1 and the outer cylinder 1-3.

[0090] The outer cylinder 1-3, the top inner cylinder 1-4 and the bottom inner cylinder 1-1 are all cylindrical in shape, and the central axes of the outer cylinder 1-3, the top inner cylinder 1-4 and the bottom inner cylinder 1-1 coincide with each other. The outer cylinder 1-3 includes two first semi-cylindrical bodies, the top inner cylinder 1-4 includes two second semi-cylindrical bodies, and the bottom inner cylinder 1-1 includes two third semi-cylindrical bodies. The first semi-cylindrical body, the second semi-cylindrical body and the third semi-cylindrical body are all Hough forms, and the Hough surfaces of the outer cylinder 1-3, the top inner cylinder 1-4 and the bottom inner cylinder 1-1 are on the same plane.

[0091] The first semi-cylinder, the second semi-cylinder and the third semi-cylinder are all semi-cylindrical in shape, and are assembled into an outer cylinder 1-3 by fitting and installing the half surfaces of two first semi-cylinders, into a top inner cylinder 1-4 by fitting and installing the half surfaces of two second semi-cylinders, and into a bottom inner cylinder 1-1 by fitting and installing the half surfaces of two third semi-cylinders, wherein the half surfaces are the joining surfaces of the two first semi-cylinders or the two second semi-cylinders or the two third semi-cylinders.

[0092] The top leaves 1-5 and the bottom leaves 1-2 are both crescent-shaped.

[0093] The thickness of the middle part of the top blade 1-5 and the bottom blade 1-2 is greater than that of the two ends. The two ends of the top blade 1-5 and the bottom blade 1-2 are gradually sharpened relative to the middle part. Both side surfaces of the top blade 1-5 and the bottom blade 1-2 are arc surfaces.

[0094] Through the curved surface on the bottom blade 1-2 and the installation angle limitation, the liquid or gas passing through the bottom blade 1-2 can produce a clockwise or counterclockwise rotation function, and the bottom blade 1-2 can realize a propeller-like function. Through the crescent-shaped curved surface on the top blade 1-5, the liquid or gas passing through the top blade 1-5 can be smooth, preventing turbulence.

[0095] In order to better describe the positional relationship between the top blade 1-5 and the top inner cylinder 1-4 and the outer cylinder 1-3, and the positional relationship between the bottom blade 1-2 and the bottom inner cylinder 1-1 and the outer cylinder 1-3, four center lines are marked on the two end ports of the outer cylinder 1-3, the top inner cylinder 1-4 and the bottom inner cylinder 1-1, wherein the four center lines are defined as taking the Hough surface of the outer cylinder 1-3, the top inner cylinder 1-4 and the bottom inner cylinder 1-1 as the starting zero position, and marking lines every 90°, that is, in the diameter direction of the two end ports of the outer cylinder 1-3, the top inner cylinder 1-4 and the bottom inner cylinder 1-1, the cylinder body is divided into 360° equally, and each equal division corresponds to an angle of 90°, and 4 four center lines are marked on each end port of the outer cylinder 1-3, the top inner cylinder 1-4 and the bottom inner cylinder 1-1.

[0096] One of the four center lines on the Hough surface of the outer tube 1-3, the top inner tube 1-4 and the bottom inner tube 1-1 is defined as the reference four center line, and one of the four center lines perpendicular to the reference four center lines is defined as the positioning four center line; one of the top blades 1-5 located between the top inner tube 1-4 and the outer tube 1-3 is defined as the reference top blade, and one of the bottom blades 1-2 located between the bottom inner tube 1-1 and the outer tube 1-3 is defined as the reference bottom blade 1-2; the top view projection line of the top of the top blade 1-5 is defined as the center line of the top blade 1-5, and the top view projection line of the top of the bottom blade 1-2 is defined as the center line of the bottom blade; as shown in FIG. Figure 3 As shown, the vertical distance of the intersection of the center line of the reference bottom blade and the bottom inner tube 1-1 relative to the reference four center lines of the bottom inner tube 1-1 is set to L1, and the angle between the center line of the reference bottom blade and the reference four center lines of the bottom inner tube 1-1 is set to a; Figure 2 As shown, the included angle between the center line of the reference top blade and the positioning four center lines of the top inner tube 1-4 is b.

[0097] The vertical distance L1 of the intersection of the center line of the reference bottom blade and the bottom inner tube 1-1 relative to the reference four center lines of the bottom inner tube 1-1 is 100 to 600 mm, and the angle a of the center line of the reference bottom blade relative to the reference four center lines of the bottom inner tube 1-1 is 0 to 45°.

[0098] The included angle b between the center line of the reference top blade and the positioning center line of the top inner tube 1-4 is 0 to 45 degrees.

[0099] The number of top blades 1-5 is N, N is greater than 1, the number of bottom blades 1-2 is M, M is greater than 1, the top blades 1-5 are distributed in annular form between the top inner tube 1-4 and the outer tube 1-3, and the bottom blades 1-2 are distributed in annular form between the bottom inner tube 1-1 and the outer tube 1-3.

[0100] In this embodiment, the number of the bottom blades is 13, and the number of the top blades 1-5 is 27.

[0101] The bottom end surface of the bottom inner cylinder 1-1 is in the same plane as the bottom end surface of the outer cylinder 1-3, and the top end surface of the top inner cylinder 1-4 is in the same plane as the top end surface of the outer cylinder 1-3.

[0102] The above-mentioned cylinder and blade assembly structure requires high installation accuracy, and the large-sized thin-walled stainless steel cylinder is difficult to control welding deformation. Therefore, the present invention provides a cylinder and blade installation positioning device, such as Figures 4 to 23 As shown, it includes a bottom platform 2, a blade support plate 3, a blade baffle 4, a center tube 8 and a pressure ring 9;

[0103] like Figures 6 to 10 As shown, the bottom platform 2 includes a first platform 2-1, a first cylinder 2-3, a plurality of inner positioning blocks 2-2, a plurality of outer positioning blocks 2-6 and a plurality of first bottom plates 2-4, a plurality of inner positioning blocks 2-2 are installed in a circular array above the first platform 2-1, a plurality of outer positioning blocks 2-6 are installed in a circular array above the first platform 2-1, the first cylinder 2-3 is installed between the inner positioning blocks 2-2 and the outer positioning blocks 2-6 of the circular array, the first bottom plate 2-4 is located above the first cylinder 2-3, and the blade support plate 3 and the blade baffle 4 are detachably installed above the first bottom plate 2-4;

[0104] The bottom platform 2 is a welding assembly, and the parts are fixed by welding.

[0105] like Figures 18-19 As shown, the center cylinder 8 includes a first circular ring 8-1, a second circular cylinder 8-3, a top blade inner ring positioning cylinder 8-6 and a top blade outer ring positioning cylinder 8-5. The first circular ring 8-1 is circular, one end of the second circular cylinder 8-3 is located inside the first circular ring 8-1, the top blade inner ring positioning cylinder 8-6 and the top blade outer ring positioning cylinder 8-5 are both located above the first circular ring 8-1, the top blade inner ring positioning cylinder 8-6 is provided with an inner ring notch groove at the upper part, and the top blade outer ring positioning cylinder 8-5 is provided with an outer ring notch groove 8-5-1 at the upper part;

[0106] like Figures 21-22 As shown, the pressure ring 9 includes a second circular ring 9-1 and an inverted positioning tube 9-2. The inverted positioning tube 9-2 is located below the second circular ring 9-1. A positioning notch groove 9-2-1 is provided at the lower part of the inverted positioning tube 9-2.

[0107] The first cylinder 2-3, the second cylinder 8-3, the top blade inner ring positioning cylinder 8-6, the top blade outer ring positioning cylinder 8-5 and the inverted positioning cylinder 9-2 are all hollow cylindrical in shape, and their central axes coincide with each other.

[0108] The shapes of the inner positioning blocks 2-2 and the outer positioning blocks 2-6 are both stepped, and are used to realize positioning of the bottom inner cylinder 1-1 and the outer cylinder 1-3. The number of the inner positioning blocks 2-2 and the outer positioning blocks 2-6 are both more than three, and the center of the circular array surrounded by the inner positioning blocks 2-2 is the same as the center of the circular array surrounded by the outer positioning blocks 2-6, and the diameter of the circular array surrounded by the outer positioning blocks 2-6 is larger than the diameter of the circular array surrounded by the inner positioning blocks 2-2.

[0109] The inner positioning blocks 2-2 of the annular array are used to install and position the bottom inner cylinder 1-1, and the outer positioning blocks 2-6 of the annular array are used to install and position the outer cylinder 1-3, so that the central axes of the bottom inner cylinder 1-1 and the outer cylinder 1-3 can coincide with each other.

[0110] In this embodiment, the number of the inner positioning blocks 2-2 and the number of the outer positioning blocks 2-6 are both 6, and the shape of the bottom platform 2 is an octagon.

[0111] The first cylinder 2-3 is in the shape of a hollow cylinder. The center of the first cylinder 2-3 projected onto the first platform 2-1 in a top view is the same as the center of the circular array formed by the inner positioning blocks 2-2 and the center of the circular array formed by the outer positioning blocks 2-6.

[0112] The number of the first bottom plates 2-4 is greater than one, and the number of the first bottom plates 2-4 is the same as the number of the bottom blades 1-2, that is, 13 pieces. A plurality of first bottom plates 2-4 are installed on the first cylinder 2-3 in a circular array.

[0113] The first bottom plate 2-4 is provided with a bottom blade positioning groove 2-4-1, and the number of the bottom blade positioning groove 2-4-1 on each first bottom plate 2-4 is one.

[0114] The shape of the bottom blade positioning groove 2-4-1 matches the shape of the lower end of the bottom blade 1-2.

[0115] like Fig.10 As shown, one of the first bottom plates 2-4 is defined as the reference first bottom plate, the bottom blade positioning groove 2-4-1 on the reference first bottom plate is defined as the reference bottom blade positioning groove, the center line of the reference bottom blade positioning groove on the reference first bottom plate is set to L2, the angle between the center line L2 of the reference bottom blade positioning groove and the reference four center lines of the bottom inner tube 1-1 is a, which is the same as the angle between the center line of the reference bottom blade and the reference four center lines of the bottom inner tube 1-1. The vertical distance between the center line L2 of the reference bottom blade positioning groove and the intersection of the bottom inner tube 1-1 and the reference four center lines of the bottom inner tube 1-1 is L1, which is the same as the vertical distance between the intersection of the center line of the reference bottom blade and the bottom inner tube 1-1 and the reference four center lines of the bottom inner tube 1-1.

[0116] After the position of the reference first bottom plate is determined, the positions of the remaining first bottom plates 2-4 correspond to the positions of the bottom blades 1-2.

[0117] The first base plate 2-4 is also provided with a plurality of first cone pin holes 2-4-2 and a plurality of first screw holes 2-4-3. The first cone pin holes 2-4-2 are respectively located on both sides of the bottom blade positioning groove 2-4-1. The number of the first cone pin holes 2-4-2 is 4. Two first cone pin holes 2-4-2 are provided on one side of the bottom blade positioning groove 2-4-1 on the first base plate 2-4. The first screw holes 2-4-3 are respectively located on both sides of the bottom blade positioning groove 2-4-1. The number of the first screw holes 2-4-3 is 8. Four first screw holes 2-4-3 are provided on one side of the bottom blade positioning groove 2-4-1 on the first base plate 2-4.

[0118] like Figures 14-15 As shown, the blade support plate 3 includes an arc positioning plate 3-1 and a first flat plate 3-2. The arc positioning plate 3-1 is located above the first flat plate 3-2 and is fixed to the first flat plate 3-2 by welding. A blade support plate 3 and a blade baffle 4 are installed on each first bottom plate 2-4, and an arc surface is provided on one side of the arc positioning plate 3-1.

[0119] In this embodiment, the number of the blade support plates 3 is 13, which is the same as the number of the first bottom plates 2-4.

[0120] The shape of the arc surface on one side of the arc positioning plate 3 - 1 matches the shape of the middle area of ​​one side of the bottom blade 1 - 2 .

[0121] A second cone pin hole 3-2-1 and a second screw hole 3-2-2 are provided on the first flat plate 3-2 in the blade support plate 3. The number of the second cone pin holes 3-2-1 is two, which are matched and positioned with the two first cone pin holes 2-4-2 on one side of the blade positioning groove 2-4-1 at the bottom of the first bottom plate 2-4 through a cone pin 6; the number of the second screw holes 3-2-2 is four, which are matched and positioned with the four first screw holes 2-4-3 on one side of the blade positioning groove 2-4-1 at the bottom of the first bottom plate 2-4 through a gasket bolt 5.

[0122] like Figures 16-17 As shown, the blade baffle 4 includes a baffle 4-1 and a second flat plate 4-2, and the baffle 4-1 is located above the second flat plate 4-2 and connected to the second flat plate 4-2.

[0123] The baffle 4 - 1 is in the shape of a right-angled trapezoid, and the right plane of the baffle 4 - 1 is in point contact with the middle area of ​​the other side curved surface of the bottom blade 1 - 2 .

[0124] In this embodiment, the number of blade baffles 4 is 13, which is the same as the number of the first base plate 2-4. The second flat plate 4-2 in the blade baffle 4 is provided with a third cone pin hole 4-2-1 and a third screw hole 4-2-2. The number of the third cone pin holes 4-2-1 is two, which are matched and positioned with the two first cone pin holes 2-4-2 on the other side of the blade positioning groove 2-4-1 at the bottom of the first base plate 2-4 through a cone pin 6; the number of the third screw holes 4-2-2 is four, which are matched and positioned with the four first screw holes 2-4-3 on the other side of the blade positioning groove 2-4-1 at the bottom of the first base plate 2-4 through a gasket bolt 5.

[0125] The lower end sharp corner of the bottom blade 1-2 is embedded in the bottom blade positioning groove 2-4-1 in the first bottom plate 2-4. The bottom blade 1-2 is installed and positioned between the blade support plate 3 and the blade baffle plate 4. A blade support plate 3 and a blade baffle plate 4 on each first bottom plate 2-4 can realize the clamping and positioning of a bottom blade 1-2.

[0126] like Fig. 9 As shown, a reinforcing rib plate 2-5 is provided between the first platform 2-1 and the first bottom plate 2-4. The reinforcing rib plate 2-5 is located on the outside of the first cylinder 2-3. Both ends of the reinforcing rib plate 2-5 are respectively connected to the first platform 2-1 and the first bottom plate 2-4.

[0127] The reinforcing rib plate 2-5 is used to improve the stability between the first bottom plate 2-4 and the first platform 2-1.

[0128] like Figures 12-13 As shown, the blade support plate 3 on the first bottom plate 2-4 is connected to the blade baffle plate 4 on another adjacent first bottom plate 2-4 via a connecting rod 7;

[0129] The connecting rod 7 includes a U-shaped block 7-1, a rotating rod 7-2, a top support rod 7-3 and an angle tube 7-4. Both ends of the angle tube 7-4 are provided with internal threads, one end of the top support rod 7-3 is provided with an external thread matching the internal thread of the angle tube 7-4, and the other end of the top support rod 7-3 is a step shaft structure; the U-shaped block 7-1 is U-shaped, and the bottom of the U-shaped block 7-1 is provided with a through hole that cooperates with the step shaft structure of the top support rod 7-3; the rotating rod 7-2 is connected to the top support rod 7-3.

[0130] By rotating the rotating rod 7-2 forward and backward, the top support rod 7-3 can be rotated forward and backward relative to the angle tube 7-4. Due to the threaded connection characteristics, the top support rod 7-3 can be extended / retracted relative to the angle tube 7-4. The through hole in the U-shaped block 7-1 is matched with the stepped axis of the top support rod 7-3. The U-shaped block 7-1 can achieve a fixed-axis rotation function relative to the stepped axis in the top support rod 7-3. The U-shaped block 7-1 can also achieve an extended / retracted function relative to the angle tube 7-4. The arc positioning plate 3-1 in the blade support plate 3 on the first bottom plate 2-4 and the baffle 4-1 in the blade baffle 4 on the adjacent other first bottom plate 2-4 are contacted and connected through the U-shaped block 7-1 in the connecting rod 7. By rotating the rotating rod 7-2 forward and backward, the connecting rod 7 between the blade support plate 3 and the blade baffle 4 can achieve a tightening / retracting function.

[0131] The central tube 8 also includes a plurality of support plates 8-2, a plurality of bottom inner tube support plates 8-4 and a plurality of first support tubes 8-7. The support plate 8-2 is located between the two first circular rings 8-1. The central axis of the first circular ring 8-1 coincides with the central axis of the second circular cylinder 8-3, the central axis of the top blade inner ring positioning tube 8-6 and the central axis of the top blade outer ring positioning tube 8-5.

[0132] The bottom inner cylinder 1-1 backing plate annular array is installed on the outer bottom of the second cylinder 8-3;

[0133] The first support tube 8-7 is located at the inner top end of the second cylinder 8-3.

[0134] The first support tube 8 - 7 is installed at the inner top end of the second cylinder 8 - 3 to support the central cylinder 8 .

[0135] The number of the support plate 8-2, the bottom inner tube support plate 8-4 and the first support tube 8-7 are all more than two.

[0136] In this embodiment, the number of first rings 8-1 is two, the number of support plates 8-2 is eight, the steel plate annular array is installed between the upper and lower first rings 8-1, the number of second cylinders 8-3 is one, the first ring 8-1 is located at the top of the second cylinder 8-3, the outer diameter of the second cylinder 8-3 is the same as the outer diameter of the bottom inner cylinder 1-1, the number of support plates of the bottom inner cylinder is eight, the number of top blade inner ring positioning cylinders 8-6 and top blade outer ring positioning cylinders 8-5 are both one, and the first support tube 8-7 is set to a "M" shape.

[0137] The second cylinder 8-3 of the central cylinder 8 is placed on the bottom inner cylinder 1-1 through the bottom inner cylinder support plate 8-4 on the second cylinder 8-3, so that the second cylinder 8-3 and the bottom inner cylinder 1-1 can be on the same central axis, and the top blade inner ring positioning cylinder 8-6 and the top blade outer ring positioning cylinder 8-5 can also be on the same central axis.

[0138] The shapes of the inner ring notch groove and the outer ring notch groove 8-5-1 are matched with the shape of the lower end of the top blade 1-5, and the top blade inner ring positioning cylinder 8-6 is located inside the top blade outer ring positioning cylinder 8-5 and the central axes coincide with each other;

[0139] The number of the inner circle notch grooves is the same as the number of the outer circle notch grooves 8-5-1, and the number of the inner circle notch grooves is the same as the number of the top blades 1-5;

[0140] like Fig.19 As shown, one of the inner ring notch grooves is defined as the reference inner ring notch groove, and the angle between the center line of the reference inner ring notch groove and the positioning four center lines of the top inner tube 1-4 is b, which is the same as the angle between the center line of the reference top blade and the positioning four center lines of the top inner tube 1-4.

[0141] Similarly, one of the outer ring notch grooves 8-5-1 is defined as the reference outer ring notch groove, and the angle between the center line of the reference outer ring notch groove and the positioning four center lines of the top inner tube 1-4 is b, which is the same as the angle between the center line of the reference top blade and the positioning four center lines of the top inner tube 1-4.

[0142] The center line of the reference inner circle notch groove and the center line of the reference outer circle notch groove are on the same straight line, and the inner circle notch groove and the outer circle notch groove 8-5-1 are respectively arranged in a circular array on the top blade inner circle positioning tube 8-6 and the top blade outer circle positioning tube 8-5, and correspond to the positions of the top blades 1-5; during installation, the reference top blade is aligned and embedded in the reference inner circle notch groove and the reference outer circle notch groove corresponding to its position, and accordingly, the installation positions of other top blades 1-5 are determined accordingly.

[0143] The pressure ring 9 also includes a plurality of top inner cylinder support plates 9-4 and a plurality of second support tubes 9-3. The central axis of the second circular ring 9-1 coincides with the central axis of the inverted positioning cylinder 9-2. The top inner cylinder support plates 9-4 are installed in an annular array in the second circular ring 9-1.

[0144] The shape of the positioning notch groove 9-2-1 matches the shape of the upper end of the top blade 1-5.

[0145] The number of the positioning notch grooves 9-2-1 is the same as the number of the top blades 1-5, and the positioning notch grooves 9-2-1 are arranged in an annular array at the lower part of the inverted positioning tube 9-2.

[0146] like Fig. 22 As shown, one of the positioning notch grooves 9-2-1 is defined as the reference positioning notch groove, and the included angle b between the center line of the reference positioning notch groove and the positioning four center lines of the top inner tube 1-4 is the same as the included angle between the center line of the reference top blade and the positioning four center lines of the top inner tube 1-4. The position of the positioning notch groove 9-2-1 corresponds to the position of the top blade 1-5. During installation, the reference top blade is aligned with the reference inner ring notch groove, the reference outer ring notch groove and the reference positioning notch groove, and accordingly, the installation positions of the other top blades 1-5 are determined accordingly.

[0147] The second supporting tube 9 - 3 is located on the second ring 9 - 1 .

[0148] The second support tube 9 - 3 is installed on the second circular ring 9 - 1 to support the pressure ring 9 .

[0149] The second ring 9-1 is in the shape of a ring, and its inner diameter is the same as that of the top inner tube 1-4. By placing the second ring 9-1 in the pressure ring 9 on the top inner tube 1-4 via the top inner tube support plate 9-4 inside the second ring 9-1, the center axis of the second ring 9-1 can coincide with that of the top inner tube 1-4.

[0150] The number of the top inner tube support plate 9-4 and the second support tube 9-3 are both more than two.

[0151] In this embodiment, the number of the second ring 9-1 and the inverted positioning tube 9-2 are both one piece, the inverted positioning tube 9-2 is installed below the second ring 9-1, and the central axis of the second ring 9-1 coincides with the central axis of the inverted positioning tube 9-2, the number of the top inner tube support plate 9-4 is eight pieces, the shape of the second ring 9-1 is annular, the top inner tube support plate 9-4 is located in the inner circle of the second ring 9-1, the second support tube 9-3 is set to a "cross" shape, and the second support tube 9-3 is installed at the top position of the second ring 9-1.

[0152] The specific steps of assembling the cylinder and blade assembly structure using the above positioning device are as follows:

[0153] 1. Assemble the bottom platform 2, blade support plate 3, blade baffle 4, center tube 8 and pressure ring 9 in the cylinder and blade installation and positioning device;

[0154] 2. Adjust the horizontal height with the first bottom plate 2-4 in the bottom platform 2 as a reference, and position and install the bottom inner tube 1-1 on the bottom platform 2 through the inner positioning block 2-2;

[0155] 3. Hoist the bottom blade 1-2, and embed the lower end sharp corner of the bottom blade 1-2 into the bottom blade positioning groove 2-4-1 in the first bottom plate 2-4; hoist the blade support plate 3 and the blade baffle 4, install them on both sides of each bottom blade 1-2, and connect and fix them through the gasket bolt 5 and the conical pin 6;

[0156] 4. Hang the connecting rod 7 between the blade support plate 3 and the blade baffle plate 4, and rotate the rotating rod 7-2 to tighten / contract the connecting rod 7 between the blade support plate 3 and the blade baffle plate 4;

[0157] 5. Position and install the outer cylinder 1-3 on the bottom platform 2 through the outer positioning block 2-6;

[0158] 6. Hoist the central tube 8 and place it on the bottom inner tube 1-1, and realize the coaxial positioning of the central tube 8 and the bottom inner tube 1-1 through the bottom inner tube support plate 8-4;

[0159] 7. Hoist the top inner tube 1-4, place the top inner tube 1-4 on the central tube 8, hoist the top blade 1-5, and insert the lower end of the top blade 1-5 into the corresponding inner ring notch groove and outer ring notch groove 8-5-1;

[0160] 8. Lift the pressure ring 9 and install it above the top blade 1-5, fit the positioning notch 9-2-1 in the undercut positioning tube 9-2 with the top blade 1-5, and realize the position relationship of the top blade 1-5 relative to the top inner tube 1-4;

[0161] 9. Assemble and weld the blade assembly structure.

[0162] In this embodiment, the inner diameter and wall thickness of the top inner cylinder 1-4 and the bottom inner cylinder 1-1 are the same. When the inner diameters are different, the positioning and installation of the cylinder and blade assembly structure can be achieved by adjusting the wall thickness ratio of the bottom inner cylinder 1-1, the top inner cylinder 1-4 and the first cylinder 2-3.

[0163] It should be noted that the above description shows and describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall not deviate from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. A device for mounting and positioning a cylinder and blades, characterized in that: It comprises a bottom platform (2), a blade support plate (3), a blade baffle (4), a central tube (8) and a pressure ring (9); The bottom platform (2) comprises a first platform (2-1), a first cylinder (2-3), a plurality of inner positioning blocks (2-2), a plurality of outer positioning blocks (2-6) and a plurality of first bottom plates (2-4); the plurality of inner positioning blocks (2-2) are mounted in a circular array above the first platform (2-1); the plurality of outer positioning blocks (2-6) are mounted in a circular array above the first platform (2-1); the first cylinder (2-3) is mounted between the inner positioning blocks (2-2) and the outer positioning blocks (2-6) in the circular array; the first bottom plate (2-4) is located above the first cylinder (2-3); and the blade support plate (3) and the blade baffle (4) are detachably mounted above the first bottom plate (2-4); The central cylinder (8) comprises a first circular ring (8-1), a second circular cylinder (8-3), a top blade inner ring positioning cylinder (8-6) and a top blade outer ring positioning cylinder (8-5); one end of the second circular cylinder (8-3) is located inside the first circular ring (8-1); the top blade inner ring positioning cylinder (8-6) and the top blade outer ring positioning cylinder (8-5) are both located above the first circular ring (8-1); an inner ring notch groove is provided at the top of the top blade inner ring positioning cylinder (8-6); and an outer ring notch groove (8-5-1) is provided at the top of the top blade outer ring positioning cylinder (8-5); The pressure ring (9) comprises a second circular ring (9-1) and an inverted positioning cylinder (9-2), the inverted positioning cylinder (9-2) being located below the second circular ring (9-1), and a positioning notch groove (9-2-1) being provided at the bottom of the inverted positioning cylinder (9-2); the inner positioning block (2-2) and the outer positioning block (2-6) are both stepped in shape, the number of the inner positioning blocks (2-2) and the number of the outer positioning blocks (2-6) are both more than three, the center of the circular array formed by the inner positioning blocks (2-2) is the same as the center of the circular array formed by the outer positioning blocks (2-6), and the diameter of the circular array formed by the outer positioning blocks (2-6) is greater than the diameter of the circular array formed by the inner positioning blocks (2-2); the number of the first bottom plates (2-4) is the same as the number of the bottom blades (1-2), and a plurality of the first bottom plates (2-4) are mounted on the first circular cylinder (2-3) in a circular array; The first bottom plate (2-4) is provided with a bottom blade positioning groove (2-4-1), the number of the bottom blade positioning groove (2-4-1) on each first bottom plate (2-4) is one, and the shape of the bottom blade positioning groove (2-4-1) matches the shape of the lower end of the bottom blade (1-2).

2. The device for mounting and positioning the cylinder and the blades according to claim 1, characterized in that: The blade support plate (3) comprises an arc positioning plate (3-1) and a first flat plate (3-2); the arc positioning plate (3-1) is located above the first flat plate (3-2) and connected to the first flat plate (3-2); one blade support plate (3) and one blade baffle (4) are mounted on each of the first bottom plates (2-4); one side of the arc positioning plate (3-1) is provided with an arc surface; the shape of the arc surface on one side of the arc positioning plate (3-1) matches the shape of a middle region of one side of a bottom blade (1-2).

3. The device for mounting and positioning the cylinder and the blades according to claim 2, characterized in that: The blade baffle (4) comprises a baffle (4-1) and a second flat plate (4-2); the baffle (4-1) is located above the second flat plate (4-2) and is connected to the second flat plate (4-2).

4. The device for mounting and positioning the cylinder and blades according to claim 1, characterized in that: A reinforcing rib plate (2-5) is provided between the first platform (2-1) and the first bottom plate (2-4); the reinforcing rib plate (2-5) is located outside the first cylinder (2-3); and two ends of the reinforcing rib plate (2-5) are respectively connected to the first platform (2-1) and the first bottom plate (2-4).

5. The device for mounting and positioning the cylinder and the blades according to claim 1, characterized in that: The blade support plate (3) on the first bottom plate (2-4) is connected to the blade baffle plate (4) on another adjacent first bottom plate (2-4) via a connecting rod (7); The connecting rod (7) comprises a U-shaped block (7-1), a rotating rod (7-2), a top support rod (7-3) and an angled tube (7-4); both ends of the angled tube (7-4) are provided with internal threads; one end of the top support rod (7-3) is provided with an external thread matching the internal thread of the angled tube (7-4); the other end of the top support rod (7-3) is a stepped shaft structure; the U-shaped block (7-1) is U-shaped; a through hole matching and connecting the stepped shaft structure of the top support rod (7-3) is provided at the bottom of the U-shaped block (7-1); the rotating rod (7-2) is connected to the top support rod (7-3).

6. The device for mounting and positioning the cylinder and blades as claimed in claim 3, characterized in that: The central tube (8) further comprises a plurality of support plates (8-2), a plurality of bottom inner tube support plates (8-4) and a plurality of first support tubes (8-7); The support plate (8-2) is located between the two first circular rings (8-1), and the central axis of the first circular ring (8-1) coincides with the central axis of the second cylinder (8-3), the central axis of the top blade inner ring positioning cylinder (8-6), and the central axis of the top blade outer ring positioning cylinder (8-5); The bottom inner cylinder support plates (8-4) are installed in an annular array on the outer bottom of the second cylinder (8-3); The first support tube (8-7) is located at the inner top end of the second cylinder (8-3).

7. The device for mounting and positioning the cylinder and the blades according to claim 6, characterized in that: The shapes of the inner ring notch groove and the outer ring notch groove (8-5-1) both match the shape of the lower end of the top blade (1-5); the top blade inner ring positioning cylinder (8-6) is located inside the top blade outer ring positioning cylinder (8-5) and the central axes coincide with each other; The number of the inner circle notch grooves is the same as the number of the outer circle notch grooves (8-5-1), and the number of the inner circle notch grooves is the same as the number of the top blades (1-5).

8. The device for mounting and positioning a cylinder and blades as claimed in claim 1, characterized in that: The pressure ring (9) further comprises a plurality of top inner cylinder support plates (9-4) and a plurality of second support tubes (9-3); the central axis of the second circular ring (9-1) coincides with the central axis of the inverted positioning cylinder (9-2); and the top inner cylinder support plates (9-4) are installed in an annular array inside the second circular ring (9-1); The shape of the positioning notch groove (9-2-1) matches the shape of the upper end of the top blade (1-5); The number of the positioning notch grooves (9-2-1) is the same as the number of the top blades (1-5), and the positioning notch grooves (9-2-1) are arranged in an annular array at the lower part of the inverted positioning cylinder (9-2); The second supporting tube (9-3) is located on the second circular ring (9-1); The second circular ring (9-1) is in the shape of a circular ring, and the inner diameter of the second circular ring (9-1) is the same as the inner diameter of the top inner cylinder (1-4).

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