Jigging machine lift valve main shaft

Abstract

The jigger lift valve spindle comprises a lift shaft, a valve element and valve discs, one end of the lift shaft is connected with the valve element, a limiting groove is formed in the valve element, the lift shaft is locked in the limiting groove through a first bolt, a second gasket is arranged at the bottom of the first bolt, and the other end of the lift shaft is connected with the two valve discs. The two valve discs are arranged in a mirror image mode, the valve discs at the ends are locked through nuts and second bolts, and first gaskets are arranged between the nuts and the valve discs. The upper portion of the lifting shaft is connected with the valve element and used in cooperation with the valve element through the locking gasket and the bolt, the valve disc is installed on the lower portion of the lifting shaft, the valve disc is limited and locked through the gasket, the nut and the bolt, the valve element and the valve disc are connected to the lifting shaft in a limited mode to form an integrated structure, and damage to the joints of the lifting shaft, the valve element and the valve disc in the using process is avoided. The lift valve main shaft is high in safety and reliability, long in service cycle, easy and convenient to replace and maintain, low in later maintenance cost and good in practicability.

Description

Technical Field

[0001] The present application relates to the technical field of mineral processing equipment, and in particular to a main shaft of a jig lift valve. Background Art

[0002] In the mineral processing process, the jig is used to classify mixtures of different materials through a special process. The materials in the jig are classified by water pulses flowing through the material layer. By generating water movement (pulsation), the materials in the jig are clearly stratified according to density. The air required for water pulsation is generated by a charged rotary piston fan and stored in a compressed air container. The air supply and extraction are controlled by one or more poppet valves. The poppet valve spool controls the compressed air to reciprocate up and down in the lift cylinder through the solenoid valve. The repeated application of compressed air and exhaust air causes the liquid level in the jig bed cavity to change, thereby achieving density stratification of the minerals.

[0003] During operation, the valve core assembly, connected to the spindle, reciprocates within the cylinder, and the connections between the spindle head, the valve core, and the valve disc are susceptible to damage. This can cause the valve core assembly to stop operating, preventing the periodic application of compressed air to the air chamber through the air inlet, and causing equipment downtime. Repairing the valve core spindle after downtime requires disassembling the air chamber components, which is difficult and time-consuming due to location restrictions. Utility Model Content

[0004] In order to solve or partially solve the problems existing in the related art, the present application provides a jig lift valve main shaft, which uses a threaded locking method to assemble the valve disc and valve core, so that the valve core and valve disc are limited and locked to reduce wear.

[0005] The first aspect of the present application provides a jig lift valve main shaft, comprising: a lift shaft, a valve core, a valve disc, a first gasket, a nut, a second gasket, a first bolt and a second bolt. One end of the lift shaft is connected to the valve core, and a limiting groove is provided on the valve core. The lift shaft is locked by a first bolt in the limiting groove, and a second gasket is provided at the bottom of the first bolt. The other end of the lift shaft is connected to two valve discs, which are arranged in a mirror-image manner and the valve discs at the ends are locked by a nut and a second bolt. A first gasket is provided between the nut and the valve disc.

[0006] Furthermore, locking internal threads are respectively provided at both ends of the lifting shaft, and a locking external thread is also provided at the end connected to the valve disc.

[0007] Furthermore, a first shaft shoulder for limiting the valve disc is provided on the lifting shaft.

[0008] Furthermore, the second bolt is a stud bolt, one end of which is inserted into the lifting shaft and the other end is connected to a nut.

[0009] Furthermore, a flat washer is provided on the outside of the nut.

[0010] The technical solution provided by this application may have the following beneficial effects:

[0011] The present application provides a jig lift valve main shaft, the upper part of the lift shaft is connected to the valve core and is used in conjunction with a locking gasket and a bolt, the lower part is installed with a valve disc, and the valve disc is then limited and locked by a gasket, a nut and a bolt, and the valve core and the valve disc are limitedly connected to the lift shaft to form an integrated structure, so as to avoid damage to the connection between the lift shaft, the valve core and the valve disc during use. The lift valve main shaft has high safety and reliability, a long service life, simple replacement and maintenance, low later maintenance cost, and good practicality.

[0012] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0014] Figure 1 1 is a schematic diagram of the assembly of the main shaft of the jig lift valve shown in an embodiment of the present application;

[0015] Figure 2 This is a schematic diagram of the connection between the valve core and the lifting shaft shown in an embodiment of the present application;

[0016] Figure 3 Schematic diagram of the lifting shaft structure shown in an embodiment of the present application;

[0017] Reference numerals:

[0018] In the figure, 1-lifting shaft, 2-valve core, 3-valve disc, 4-first gasket, 5-nut, 6-second gasket, 7-first bolt, 8-second bolt, 9-first shaft shoulder. DETAILED DESCRIPTION

[0019] The following describes embodiments of the present application in more detail with reference to the accompanying drawings. Although the accompanying drawings illustrate embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0020] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0022] Unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0023] The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0024] like Figure 1 The jig lift valve main shaft shown includes: a lift shaft 1, a valve core 2, a valve disc 3, a first gasket 4, a nut 5, a second gasket 6, a first bolt 7 and a second bolt 8.

[0025] like Figure 3 As shown, the lifting shaft 1 has an upper locking internal thread at its head, a lower locking internal thread at its other end, and a first shaft shoulder 9 for limiting the valve disc 3 is provided in the middle of the lower locking external thread. The upper locking internal thread of the lifting shaft 1 is used to connect with the valve core 2, and the valve core 2 has a limiting groove. The valve core 2 is sleeved on the shaft head, and the first bolt 7 in the limiting groove is inserted into the upper locking internal thread, and the lifting shaft 1 is locked by the first bolt 7. A second gasket 6 is provided at the bottom of the first bolt 7, as shown in FIG. Figure 2 shown.

[0026] The lower locking internal thread and the lower locking external thread are used to connect the valve disc 3. Two valve discs 3 are provided, including an outer valve disc at the end and an inner valve disc near the shaft head. The inner valve disc is a mirror image of the outer valve disc. The disc end of the inner valve disc is restrained in the middle of the lifting shaft 1 by a first shaft shoulder 9, and the other end abuts the outer valve disc. The inner thread of the outer valve disc is threadedly connected to the lifting shaft 1 via the lower locking external thread and locked by a nut 5 and a second bolt 8. The second bolt 8 is a stud bolt with one end inserted into the lower locking internal thread and the other end connected to the nut 5. A first gasket 4 is provided between the nut 5 and the valve disc 3.

[0027] In one embodiment, a flat washer is provided on the outside of the nut 5. The flat washer is used to increase the connection area, thereby increasing the stability and load-bearing capacity of the connection, reducing the local pressure on the connector, and avoiding loosening. After the nut of the stud bolt is tightened, a certain preload force will be applied. The flat washer can help disperse the pressure at the connection site, so that the pressure is evenly distributed on the connection surface, reducing stress concentration, and improving the reliability of the connection. At the same time, the thickness of the flat washer can be used to adjust the gap between the connectors. During the connection process, flat washers of different thicknesses can be selected as needed to adjust the gap between the connectors within a certain range. This helps to achieve the best connection state, ensure the tightness and sealing of the connection, and buffer the shock and vibration of the connection site.

[0028] After the main shaft of the lift valve is installed, it is assembled into the lift valve. The valve core controls the compressed air through the solenoid valve to make reciprocating motion up and down in the lift cylinder. The compressed air is periodically applied to the air chamber through the air inlet. The compressed air is alternately applied to the air chamber during oscillation and then discharged to the outside.

[0029] Finally, it should be noted that, in this document, relationships such as first and second, etc., are used solely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms include, comprise, or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0031] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A jig lift valve spindle, characterized in that: include: A lifting shaft (1), a valve core (2), a valve disc (3), a first gasket (4), a nut (5), a second gasket (6), a first bolt (7) and a second bolt (8); one end of the lifting shaft (1) is connected to the valve core (2); a limiting groove is provided on the valve core (2); the lifting shaft (1) is locked in the limiting groove by the first bolt (7) and a second gasket (6) is provided at the bottom of the first bolt (7); the other end of the lifting shaft (1) is connected to two valve discs (3); the two valve discs (3) are arranged in a mirror image and the valve disc (3) at the end is locked by the nut (5) and the second bolt (8); a first gasket (4) is provided between the nut (5) and the valve disc (3).

2. The jig lift valve main shaft according to claim 1, characterized in that: Both ends of the lifting shaft (1) are respectively provided with locking internal threads, and the end connected to the valve disc (3) is also provided with a locking external thread.

3. The jig lift valve main shaft according to claim 1, characterized in that: A first shaft shoulder for limiting the valve disc (3) is provided on the lifting shaft (1).

4. The jig lift valve main shaft according to claim 1, characterized in that: The second bolt (8) is a stud bolt, one end of which is inserted into the lifting shaft (1) and the other end is connected to the nut (5).

5. The jig lift valve main shaft according to claim 1, characterized in that: A flat washer is arranged outside the nut (5).

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