CN217926249U - Butterfly plate with composite structure - Google Patents

Abstract

The utility model discloses a butterfly-shaped plate with a composite structure, which comprises a base plate, wherein the base plate comprises two symmetrically arranged convex plates which are formed by convex at two sides, and a abdicating groove for accommodating a swinging shaft is concavely arranged between the two convex plates; one side of the base plate is provided with a wear-resistant layer; the mounting hole has been seted up at the base member board middle part, the hole has been seted up to the wearing layer, hole and the coaxial setting of mounting hole, the mounting hole link up the setting with the hole, the diameter of hole is less than the diameter of mounting hole. The utility model discloses a butterfly plate sets up between skirt valve discharge gate and back shroud, replaces back shroud contact concrete material, reduces design cost, when guaranteeing the leakproofness, possesses higher wearability and life, simultaneously, dismantles the back shroud and can conveniently change the maintenance.

Description

Butterfly plate with composite structure

Technical Field

The utility model relates to a composite construction's butterfly plate belongs to concrete pump technical field.

Background

The pumping mechanism is an execution mechanism of a concrete pump, is an implementation component for converting hydraulic energy into concrete conveying pressure, and is a core component in concrete pumping conveying equipment;

the conventional pumping system comprises an S valve system and a skirt valve system, wherein a skirt valve in the skirt valve system is in a skirt shape, and compared with the S valve system, the skirt valve is small in feeding port, large in discharging port, short in valve body, large in inner diameter, convenient to maintain and durable, when concrete is pumped, half of the skirt valve is filled with concrete, so that the abrasion is reduced, a flow passage of the skirt valve is shortened, the material suction performance of a hopper design is better, and the pipeline resistance is correspondingly reduced when concrete is pumped;

the skirt valve system comprises a skirt valve, a swing shaft and a valve body shell, the skirt valve and the swing shaft are contained in the valve body shell, a mounting hole is formed in the position, located at the discharge port of the skirt valve, of the valve body shell, a rear cover plate is detachably covered on the mounting hole, a discharge hole is formed in the rear cover plate, the discharge end of the skirt valve abuts against the rear cover plate, and materials flow out of the discharge end of the skirt valve and then flow out of the discharge hole in the rear cover plate, so that the pumping process of the materials is completed;

skirt valve system discharge end is circular in the inside swing orbit of hopper, for preventing that the discharge end from leaking thick liquid, promotes the system life-span simultaneously, requires that the back shroud possesses high sealing performance and wear resistance. Therefore, the rear cover plate can be processed by adopting the steel plate, but the abrasion resistance of the steel plate cannot be ensured in a longer working period due to the fact that the steel plate is in contact with concrete, the steel plate needs to be replaced frequently, and the maintenance cost is improved along with the steel plate; if adopt whole wear-resisting material design back shroud, then processing is comparatively difficult, and the processing cost of mounting hole is also high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome prior art's defect, provide a composite construction's butterfly plate, this butterfly plate sets up between skirt valve discharge gate and back shroud, replaces back shroud contact concrete material, reduces design cost, when guaranteeing the leakproofness, possesses higher wearability and life, simultaneously, dismantles the back shroud and can conveniently change the maintenance.

In order to achieve the above object, the present invention provides a butterfly plate with a composite structure, including:

the base plate comprises two symmetrically arranged convex plates which are convexly formed at two sides, and a abdicating groove for accommodating the oscillating shaft is concavely arranged between the two convex plates;

one side of the base plate is provided with a wear-resistant layer;

the mounting hole has been seted up at the base member board middle part, the hole has been seted up to the wearing layer, hole and the coaxial setting of mounting hole, the mounting hole link up the setting with the hole, the diameter of hole is less than the diameter of mounting hole.

Further, the substrate plate is made of a carbon steel plate material.

Further, the thickness of the base plate is 18mm-20mm.

Further, the wear layer comprises a cladding layer made of hardfacing wire.

Further, the thickness of the wear-resistant layer is 6mm-8mm.

Further, the hardness of the wear-resistant layer is 58HRC-63HRC.

Furthermore, a plurality of groups of threaded holes are formed in the base plate, and the threaded holes are blind holes.

Further, each group of threaded holes comprises two threaded holes, and the two threaded holes in each group are symmetrically arranged about the symmetry axis of the two convex plates.

Further, the effective depth of the threaded hole is 16mm-18mm, and the bottom hole depth of the threaded hole is 18mm-20mm.

The utility model discloses the beneficial effect who reaches:

the utility model provides a butterfly plate placed between a skirt valve and a rear cover plate, which avoids the direct contact between the rear cover plate and the skirt valve, the rear cover plate is not contacted with materials, the wear-resistant design and the service life design of the rear cover plate with the area far larger than the discharge end of the skirt valve are not needed, and the design cost of the rear cover plate is reduced;

the utility model provides a butterfly plate which can be detachably arranged on a rear cover plate and abuts against the discharge end of a skirt valve, and the rear cover plate can be disassembled and assembled to conveniently complete disassembly and assembly maintenance;

the utility model relates to a wear-resistant butterfly plate, which comprises a base plate made of carbon steel plates and a wear-resistant layer made of a cladding layer made of wear-resistant surfacing welding wires, wherein the wear-resistant layer is arranged on one side of the base plate, and the carbon steel plates with low economy are used as the base plate, so that the material cost can be reduced while the strength requirement is met; the cladding layer made of the hardfacing welding wire is arranged on one surface of the carbon steel plate, so that the use of wear-resistant materials is reduced, the use of the wear-resistant materials with higher cost is reduced on the premise of meeting the requirements of wear resistance and service life, and the material cost and the processing cost can be effectively reduced.

Drawings

Fig. 1 is a view of a mounting surface of a butterfly plate of a composite structure according to an embodiment of the present invention;

fig. 2 is a view of a wear-resistant layer of a butterfly plate of a composite structure according to an embodiment of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view taken at line A-A of FIG. 1;

FIG. 4 is a cross-sectional view taken at FIG. 1B-B;

FIG. 5 is a diagram illustrating an exemplary application of the present invention;

in the figure: 100. a base plate; 110. mounting holes; 120. a threaded hole; 130. a convex plate; 140. a yielding groove; 200. a wear layer; 210. an inner bore; 300. a rear cover plate; 400. a swing shaft; 500. a skirt valve.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The embodiment of the utility model provides a butterfly plate of composite construction, as shown in fig. 1 to 5, the butterfly plate is placed between the skirt valve 500 and the back cover plate 300, avoids the back cover plate 300 to directly contact with the skirt valve 500, and the back cover plate 300 does not contact with the material, need not to carry out wear-resisting design and life design to the back cover plate 300 whose area is far greater than the discharge end of the skirt valve 500, reduces the design cost of the back cover plate 300; meanwhile, the butterfly plate can be detachably arranged on the rear cover plate 300 when in use, is abutted against the discharge end of the skirt valve 500, and can be conveniently disassembled, assembled and maintained by disassembling and assembling the rear cover plate 300; the utility model provides a wear-resisting plate, which comprises a base plate 100 composed of carbon steel plates and a wear-resisting layer 200 composed of a cladding layer made of wear-resisting surfacing welding wires, wherein the wear-resisting layer 200 is arranged on one side of the base plate 100, and the carbon steel plates with low economy are selected as the base plate 100, so that the material cost can be reduced while the strength requirement is met; the cladding layer made of the hardfacing welding wire is arranged on one surface of the carbon steel plate, so that the use of wear-resistant materials is reduced, the use of the wear-resistant materials with higher cost is reduced on the premise of meeting the requirements of wear resistance and service life, and the material cost and the processing cost can be effectively reduced.

Specifically, as shown in fig. 1 to 4, the butterfly plate includes a base plate 100 and a wear-resistant layer 200, and the wear-resistant layer 200 is selected from a hardfacing welding wire to be clad on one surface of the base plate 100, which is used for contacting the skirt valve 500.

Specifically, as shown in fig. 1 to 5, since the swing shaft 400 is provided on the top of the skirt valve 500, the area of the base plate 100 should be larger than the area of the discharge end port of the skirt valve 500 in order to ensure the sealing property, but in order to accommodate the position of the swing shaft 400, the base plate 100 is processed into a butterfly shape: two sides of the base plate 100 protrude outwards to form two symmetrically arranged protruding plates 130, and an abdicating groove 140 for accommodating the swing shaft 400 is concavely arranged between the two protruding plates 130, so as to form the butterfly-shaped base plate 100, wherein the thickness of the base plate 100 in the butterfly-shaped plate provided by the embodiment is 18mm-20mm.

Specifically, as shown in fig. 1 to 4, the wear-resistant layer 200 is arranged on the surface of the base plate 100, which is used for contacting the discharge port of the skirt valve 500, and the wear-resistant layer 200 comprises a cladding layer made of hardfacing welding wires, and since the wear-resistant layer 200 is to contact concrete materials, in order to ensure the wear resistance and the service life of the wear-resistant layer 200, the thickness of the wear-resistant layer 200 is required to be 6mm to 8mm, and the hardness of the wear-resistant layer 200 is 58HRC to 63HRC.

Specifically, as shown in fig. 1, fig. 3 and fig. 4, the threaded hole 120 is provided for connecting the back cover plate 300 on the side where the wear-resistant layer 200 is not provided, the threaded hole 120 is a blind hole, the effective depth of the threaded hole 120 is 16mm to 18mm, the depth of the bottom hole is 18mm to 20mm, the two threaded holes 120 are in one group, the two threaded holes 120 are symmetrically arranged about the symmetry axis of the two convex plates 130, and the threaded holes 120 are provided with multiple groups for ensuring the connection stability of the back cover plate 300.

Specifically, as shown in fig. 1 to 4, a mounting hole 110 is formed in the middle of the base plate 100, an inner hole 210 is formed in the wear-resistant layer 200, the inner hole 210 and the mounting hole 110 are coaxially arranged in a penetrating manner, and the diameter of the inner hole is smaller than that of the mounting hole.

When the device is manufactured specifically:

preparing a butterfly plate raw material whole plate:

the base plate 100 is made of a carbon steel plate with the thickness of 20mm-25mm, and then a hardfacing welding wire is clad on the carbon steel plate by adopting a submerged-arc welding process to form a seamless wear-resistant layer 200, wherein the thickness requirement of the wear-resistant layer 200 is 8mm-10mm, and the hardness requirement is 58HRC-63HRC, so that the whole butterfly plate raw material is manufactured.

Cold processing the whole plate material to manufacture a butterfly plate:

firstly, removing uneven parts of a wear-resistant layer 200 cladded on the outer periphery of a whole plate, then gas-cutting the whole plate material according to the shape of a butterfly-shaped base plate 100 by using a plasma cutting machine to form the outer contour of the base plate 100, and then gas-cutting an inner hole 210 to form a blank of the base plate 100;

after blanking, machining programs such as milling, grinding, drilling, tapping and the like are carried out on a blank of the base plate 100 to process a mounting surface, the surface of the wear-resistant layer 200, the threaded hole 120 and the mounting hole 110 to meet specified requirements, a butterfly plate finished product is formed, after machining, the thickness requirement of the base plate 100 is 18mm-20mm, the thickness requirement of the wear-resistant layer 200 is 6mm-8mm, the effective depth of the threaded hole 120 is 16mm-18mm, the hole depth of the threaded hole 120 is 18mm-20mm, and the mounting size of a corresponding fitting piece is guaranteed.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims (9)

1. A butterfly plate of composite construction which characterized in that:

the swing shaft device comprises a base plate (100), wherein the base plate (100) comprises two symmetrically arranged convex plates (130) which are convexly formed at two sides, and an abdicating groove (140) for accommodating a swing shaft (400) is concavely arranged between the two convex plates (130); one side of the base plate (100) is provided with a wear-resistant layer (200);

mounting hole (110) have been seted up at base member board (100) middle part, hole (210) have been seted up in wearing layer (200), hole (210) and mounting hole (110) coaxial setting, mounting hole (110) link up the setting with hole (210), the diameter of hole (210) is less than the diameter of mounting hole (110).

2. A composite structural butterfly plate in accordance with claim 1, wherein:

the substrate plate (100) is made of a carbon steel plate material.

3. A composite structural butterfly plate in accordance with claim 1, wherein:

the thickness of the base plate (100) is 18mm-20mm.

4. A composite structural butterfly plate in accordance with claim 1, wherein:

the wear layer (200) comprises a cladding layer made of hardfacing wire.

5. A composite structural butterfly plate in accordance with claim 1, wherein:

the thickness of the wear-resistant layer (200) is 6mm-8mm.

6. A composite structural butterfly plate in accordance with claim 1, wherein:

the hardness of the wear-resistant layer (200) is 58HRC-63HRC.

7. A composite structural butterfly plate in accordance with claim 1, wherein:

the base plate (100) is provided with a plurality of groups of threaded holes (120), and the threaded holes (120) are blind holes.

8. A composite structural butterfly plate in accordance with claim 7, wherein:

each group of threaded holes (120) comprises two threaded holes (120), and the two threaded holes (120) in each group are symmetrically arranged about the symmetry axis of the two convex plates (130).

9. A composite construction butterfly plate in accordance with claim 7, wherein:

the effective depth of the threaded hole (120) is 16mm-18mm, and the bottom hole depth of the threaded hole (120) is 18mm-20mm.

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