Carbon steel coated stirring shaft

Abstract

The utility model relates to a carbon steel coated stirring shaft which comprises a shaft head shaft core, a connecting assembly penetrating through the upper end and the lower end of the shaft head shaft core, a main shaft core mounted on the upper portion of the outer side of the shaft head shaft core, a main shaft coating layer mounted on the side wall of the main shaft core, and an end coating layer mounted at the bottom end of the main shaft core. The connecting assembly comprises an inserting column, a circular truncated cone is arranged on the inner side of the inserting column, a first threaded rod is fixedly connected to the bottom end of the circular truncated cone, the first threaded rod is in threaded connection with the shaft head shaft core, a prism block is fixedly connected to the bottom end of the first threaded rod, and three inserting blocks are installed on the side wall of the inserting column in a penetrating mode. The end, close to the circular truncated cone body, of the inserting block is provided with an inclined face attached to the side edge of the circular truncated cone body, and the side edge of the inserting column is fixedly connected with a positioning strip.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of stirring shafts, in particular to a carbon steel coated stirring shaft. BACKGROUND

[0002] In a low-temperature crystallization device, a stirring shaft part is one of core components, and the performance directly affects the operation efficiency and service life of the device. As a core component of an industrial stirring device, the stirring shaft is long-term under complex working conditions such as high-speed rotation, medium corrosion and mechanical load. The traditional carbon steel coated stirring shaft usually adopts a welding or bolt fixing mode to connect the main shaft and the shaft head, and the installation is time-consuming and high in precision requirement.

[0003] Therefore, the skilled person in the art provides a carbon steel coated stirring shaft to solve the problems in the background art. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problems in the background art, the application provides a carbon steel coated stirring shaft.

[0005] The carbon steel coated stirring shaft provided by the application adopts the following technical scheme:

[0006] A carbon steel coated stirring shaft, comprising a shaft head shaft core, a connecting assembly installed through the upper and lower ends of the shaft head shaft core, a main shaft shaft core installed on the upper outer side of the shaft head shaft core, a main shaft coating layer installed on the side wall of the main shaft shaft core, an end coating layer installed at the bottom end of the main shaft shaft core, and a shaft head coating layer installed on the outer side of the shaft head shaft core, the connecting assembly comprising a plug post, a circular truncated cone body provided on the inner side of the plug post, a first threaded rod fixedly connected to the bottom end of the circular truncated cone body, the first threaded rod being threadedly connected to the shaft head shaft core, a prismatic block fixedly connected to the bottom end of the first threaded rod, three plug blocks installed through the side wall of the plug post, an inclined surface provided on the end of the plug block close to the circular truncated cone body and abutting against the side of the circular truncated cone body, and a positioning strip fixedly connected to the side of the plug post.

[0007] Preferably, the main shaft shaft core comprises a metal pipe, three ring-shaped insertion holes are formed in the inner side of the metal pipe, the insertion holes correspond to the positions of the plug blocks, and a positioning groove is formed in the inner wall of the metal pipe and used in cooperation with the positioning strip.

[0008] Preferably, a second threaded rod is fixedly connected to the upper end of the circular truncated cone body in the middle, a connecting ring is fixedly connected to the inner side of the metal pipe, and the second threaded rod is threadedly connected to the middle part of the connecting ring.

[0009] Preferably, the outer lower side of the plug post is provided as a conical surface, the inner lower side of the metal pipe is provided with a conical surface matched with the lower part of the plug post, and a rubber ring is installed on the conical surface of the plug post.

[0010] Preferably, the end of the plug block away from the circular truncated cone body is designed in a pyramidal shape.

[0011] In summary, the present application includes the following beneficial technical effects:

[0012] 1. By rotating the radial extension of the plug, the quick connection of the spindle shaft core and the shaft head core is realized, the connection time is greatly shortened, the labor cost is reduced, the mechanical engagement of the plug and the socket provides the main locking force, the second threaded rod and the threaded connection of the connecting ring form auxiliary reinforcement, which significantly improves the torsional and tensile properties, the cooperation of the conical surface and the rubber ring effectively isolates the corrosive medium, prolongs the service life of the shaft body, the spindle covering layer, the end covering layer and the shaft head covering layer are made of materials to form a continuous protective layer to avoid direct erosion of the shaft core by the stirring medium. It has the effect of quick docking during installation, and has high precision and good firmness. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the overall structure schematic diagram of the present application;

[0014] Figure 2 is the structure schematic diagram of the connecting assembly of the present application;

[0015] Figure 3 is the sectional view of the present application;

[0016] Figure 4 is the structure schematic diagram of the connecting assembly of the present application; Figure 3 A part of the present application.

[0017] BRIEF DESCRIPTION OF DRAWINGS: 1, spindle shaft core; 101, metal pipe; 102, connecting ring; 103, socket; 104, positioning groove; 2, connecting assembly; 201, plug post; 202, circular truncated cone body; 203, first threaded rod; 204, prism block; 205, second threaded rod; 206, plug; 207, positioning strip; 208, rubber ring; 3, shaft head core; 4, spindle covering layer; 5, end covering layer; 6, shaft head covering layer. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0019] Embodiment 1

[0020] As Figures 1-4As shown in the application, a carbon steel coated stirring shaft is disclosed, which comprises a shaft head core 3, a connecting assembly 2 installed through the upper and lower ends of the shaft head core 3, a main shaft core 1 installed on the outer side of the shaft head core 3, a main shaft coating layer 4 installed on the side wall of the main shaft core 1, an end coating layer 5 installed at the bottom end of the main shaft core 1, a shaft head coating layer 6 installed on the outer side of the shaft head core 3, and the connecting assembly 2 comprises a plug post 201, a circular truncated cone body 202 arranged on the inner side of the plug post 201, a first threaded rod 203 installed at the bottom end of the circular truncated cone body 202, the first threaded rod 203 being in threaded connection with the shaft head core 3, a prismatic block 204 installed at the bottom end of the first threaded rod 203, and three plug blocks 206 installed through the side wall of the plug post 201, the end of the plug block 206 close to the circular truncated cone body 202 being provided with an inclined surface abutting the side edge of the circular truncated cone body 202, and a positioning strip 207 being installed on the side edge of the plug post 201.

[0021] The rotating prismatic block 204 drives the first threaded rod 203 and the circular truncated cone body 202 to rotate, drives the circular truncated cone body 202 to ascend, thereby pushing the plug block 206 to be inserted into the insertion hole 103, and connects the main shaft core 1 and the shaft head core 3. The positioning strip 207 moves along the direction of the positioning groove 104, and can align the plug block 206 with the position of the insertion hole 103.

[0022] As shown in the application, Figures 2-3 The main shaft core 1 comprises a metal pipe 101, three annularly arranged insertion holes 103 are formed in the inner side of the metal pipe 101, the insertion holes 103 correspond to the positions of the plug blocks 206, a positioning groove 104 is formed in the inner wall of the metal pipe 101, and the positioning groove 104 is used in cooperation with the positioning strip 207.

[0023] As shown in the application, Figure 3 A second threaded rod 205 is fixedly connected to the upper end of the circular truncated cone body 202, a connecting ring 102 is installed on the inner side of the metal pipe 101, the second threaded rod 205 is in threaded connection with the middle part of the connecting ring 102, and the second threaded rod 205 cooperates with the connecting ring 102 to improve the firmness of the connection.

[0024] As shown in the application, Figure 3 The outer side of the plug post 201 is provided with a conical surface at the lower part, the inner side of the metal pipe 101 is provided with a conical surface at the lower part matched with the lower part of the plug post 201, a rubber ring 208 is installed on the conical surface of the plug post 201, and the connecting part of the metal pipe 101 and the plug post 201 is provided with a conical surface and the rubber ring 208 arranged between the conical surfaces, so as to improve the sealing performance of the connection.

[0025] As shown in the application, Figure 3 The end of the plug block 206 away from the circular truncated cone body 202 is designed in a pyramid shape, and the end of the circular truncated cone body 202 close to the insertion hole 103 is designed in a pyramid shape, so as to facilitate the insertion of the plug block 206 into the insertion hole 103.

[0026] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and details are not described herein.

[0027] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art.

[0028] The implementation principle of the carbon steel coated stirring shaft according to the embodiment of the application is as follows:

[0029] In use, the prismatic block 204 at the bottom end of the connecting assembly 2 is rotated by a wrench, the first threaded rod 203 and the circular truncated cone body 202 are synchronously rotated, the circular truncated cone body 202 is moved upward along the threaded cooperation of the second threaded rod 205 and the connecting ring 102, the taper surface of the circular truncated cone body 202 extrudes the inclined surface of the plug block 206, the plug block 206 is forced to extend radially outward and is inserted into the insertion hole 103 of the main shaft core 1, the mechanical locking of the main shaft core 1 and the shaft head core 3 is realized, the positioning strip 207 slides along the positioning groove 104 in the inner wall of the main shaft core 1, the accurate alignment of the plug block 206 and the insertion hole 103 is ensured, the taper surface at the lower part of the plug column 201 is tightly attached to the corresponding taper surface in the inner wall of the main shaft core 1 through the rubber ring 208, a seal is formed, the medium is prevented from penetrating into the connecting gap, the pyramidal end part of the plug block 206 is designed to facilitate the insertion into the insertion hole 103, after the connection is completed, the first threaded rod 203 extending out of the shaft head core 3 is sawed off, the end part covering layer 5 is welded at the bottom end of the main shaft core 1, the main shaft covering layer 4 and the shaft head covering layer 6 are welded at the outer side of the main shaft core 1 and the main shaft core 1 respectively.

[0030] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above embodiments, the above embodiments and the description in the specification are only preferred examples of the utility model and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A carbon steel-coated stirring shaft, characterized in that, The assembly includes a shaft head core (3), with a connecting component (2) installed through both the upper and lower ends of the shaft head core (3). A main shaft core (1) is installed on the upper outer side of the shaft head core (3). A main shaft covering layer (4) is installed on the side wall of the main shaft core (1). An end covering layer (5) is installed at the bottom end of the main shaft core (1). A shaft head covering layer (6) is installed on the outer side of the shaft head core (3). The connecting component (2) includes a pin (201), and a frustum (2) is provided on the inner side of the pin (201). 02), the bottom end of the frustum (202) is fixed with a first threaded rod (203), the first threaded rod (203) is threadedly connected to the shaft core (3), the bottom end of the first threaded rod (203) is fixed with a prism block (204), three inserts (206) are installed through the side wall of the insert (201), the insert (206) is provided with an inclined surface that fits the side of the frustum (202) at one end near the frustum (202), and a positioning strip (207) is fixed to the side of the insert (201).

2. The carbon steel-coated stirring shaft according to claim 1, characterized in that: The spindle core (1) includes a metal tube (101). Three annularly arranged insertion holes (103) are provided on the inner side of the metal tube (101). The insertion holes (103) correspond to the positions of the insertion blocks (206). A positioning groove (104) is provided on the inner wall of the metal tube (101). The positioning groove (104) is used in conjunction with the positioning strip (207).

3. The carbon steel-coated stirring shaft according to claim 2, characterized in that: The upper end of the frustum (202) is centrally fixed with a second threaded rod (205), and the inner side of the metal tube (101) is fixed with a connecting ring (102). The second threaded rod (205) is threadedly connected to the middle part of the connecting ring (102).

4. The carbon steel-coated stirring shaft according to claim 3, characterized in that: The lower outer side of the insert (201) is provided with a conical surface, and the lower inner side of the metal tube (101) is provided with a conical surface that matches the lower part of the insert (201). A rubber ring (208) is installed on the conical surface of the insert (201).

5. The carbon steel-coated stirring shaft according to claim 1, characterized in that: The end of the insert (206) away from the frustum (202) is designed as a pyramid.

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