Flap valve structure of vacuum feeding machine

Abstract

The utility model relates to a flap valve structure of a vacuum feeder, which belongs to the technical field of flap valves of vacuum feeders and comprises a force arm shaft, two force arm sheets are arranged on the force arm shaft, a live shaft head is arranged at one end of the force arm shaft, a coupling is arranged at one end of the force arm shaft, and one end of the live shaft head penetrates through and extends into the force arm shaft. According to the flap valve structure of the vacuum feeding machine, the movable shaft head with the square section and the coupling internally provided with the square hole are arranged, and the movable shaft head is inserted into the square grooves formed in the coupling and the moment arm shaft, so that the coupling and the moment arm shaft are connected; according to the flap valve structure of the vacuum feeding machine, the power arm shaft can be driven by the coupling to rotate, then the opening and closing action of the valve plate is controlled, and after the movable shaft head deforms, only the deformed movable shaft head needs to be replaced, so that the cost for maintaining the flap valve of the vacuum feeding machine is reduced, and the practicability of the flap valve structure of the vacuum feeding machine is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of flap valves for vacuum feeders, in particular to a flap valve structure for vacuum feeders. Background Art

[0002] The flap valve of a vacuum loader is usually composed of a valve body, a valve plate, a drive device, a crank arm shaft assembly, a sealing structure and a connecting structure, wherein the crank arm shaft assembly includes a crank arm shaft, a crank arm support and a universal joint, etc. The crank arm shaft is an important component connecting the drive device and the valve plate. The drive device can drive the valve plate to rotate to control the passage or cutoff of the material. When the valve plate is in a closed state, it can prevent the material from flowing out of the silo of the vacuum loader. When the valve plate is open, the material can smoothly pass through the flap valve into the subsequent conveying pipeline or equipment. The drive device provides power for the flipping of the valve plate, so that the valve plate can be accurately opened or closed when needed.

[0003] In the prior art, the flap arm shaft head of the vacuum loader flap valve is an integrated type. During normal operation, a driving device is used to drive the valve plate to flip through the flap arm to achieve multi-frequency opening and closing of the valve plate. However, during the driving process, the force of the driving device drives the coupling to rotate, and the coupling drives the flap arm to rotate through the square shaft head. The square shaft head of the flap arm is subjected to a large torque, and the square shaft head rotates and flips continuously, resulting in deformation of the square shaft head and an increase in the gap due to wear. The entire flap arm shaft needs to be replaced, and the cost of use increases. Therefore, a vacuum loader flap valve structure is proposed to solve the above problems. Utility Model Content

[0004] In response to the deficiencies in the prior art, the utility model provides a flap valve structure for a vacuum loader, which has the advantage of low-cost replacement and maintenance, and solves the problem that the flap arm shaft head of the flap valve of the vacuum loader is an integrated type. During normal operation, a driving device is used to drive the valve plate to flip through the flap arm to achieve multi-frequency opening and closing of the valve plate. However, during the driving process, the force of the driving device drives the coupling to rotate, and the coupling drives the flap arm to rotate through the square shaft head. The square shaft head of the flap arm is subjected to a large torque, and the square shaft head rotates and flips continuously, thereby causing the square shaft head to deform and the gap to become larger due to wear. The entire flap arm shaft needs to be replaced, which increases the cost of use.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a flap valve structure of a vacuum loader, comprising a lever shaft, on which two lever plates are provided;

[0006] One end of the lever shaft is provided with a movable shaft head, and one end of the lever shaft is provided with a coupling. One end of the movable shaft head penetrates and extends into the interior of the lever shaft, and the other end of the movable shaft head penetrates and extends into the interior of the coupling.

[0007] By adopting the above steps, it is possible to connect the lever arm shaft and the coupling using a detachable movable shaft head, so that when the movable shaft head is worn and deformed due to torque, only the movable shaft head needs to be replaced, thereby reducing the cost of replacing and repairing the vacuum loader flap valve.

[0008] Furthermore, the two arm plates are connected with connecting pieces, and the connecting pieces are fixedly connected with a valve plate.

[0009] By adopting the above steps, the rotating lever arm plate can drive the valve plate to turn synchronously through the connecting piece, thereby achieving the operation of controlling the opening and closing of the valve plate.

[0010] Furthermore, a square groove is formed at one end of the lever arm shaft, and one end of the movable shaft head passes through and extends into the interior of the square groove, and the cross section of the movable shaft head is square.

[0011] By adopting the above steps, when one end of the movable shaft head is inserted into the square groove on the lever arm shaft, the rotating movable shaft head can drive the lever arm shaft to rotate synchronously, and the disassembly and assembly of the lever arm shaft and the movable shaft head are also facilitated.

[0012] Furthermore, a square hole is opened inside the coupling, and one end of the movable shaft head passes through and extends into the square hole inside the coupling.

[0013] The above steps facilitate the insertion of one end of the movable shaft head into the interior of the coupling, facilitate the driving force of the driving device to drive the coupling to rotate, so that the rotating coupling drives the movable shaft head to rotate synchronously, and facilitates the disassembly and assembly of the movable shaft head and the coupling.

[0014] Furthermore, the connecting member includes two connecting plates and two fixing screws, one end of the fixing screw passes through the connecting plate and the lever arm plate on the same side, one end of the fixing screw is threadedly installed with a nut, and the valve plate is fixedly connected to the two connecting plates respectively.

[0015] The above steps facilitate the fixed connection between the connecting piece and the two lever arm sheets to achieve the position of the fixed valve plate.

[0016] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0017] The flap valve structure of the vacuum loader is provided with a movable shaft head with a square cross-section and a coupling with a square hole inside. The movable shaft head is inserted into the square groove provided inside the coupling and the lever arm shaft, thereby connecting the coupling and the lever arm shaft. When the driving device controls the rotation of the coupling, the lever arm shaft can be driven to rotate by the coupling, thereby achieving the opening and closing action of the control valve plate. When the movable shaft head is deformed, it is only necessary to replace the deformed movable shaft head, thereby reducing the cost of repairing the flap valve of the vacuum loader and enhancing the practicality of the flap valve structure of the vacuum loader. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model Figure 1 sectional view of

[0020] Figure 3 This is a schematic diagram of the connection between the arm shaft and the valve plate of the utility model structure.

[0021] In the figure: 1. Lever shaft; 2. Lever plate; 3. Live shaft head; 4. Coupling; 5. Connecting piece; 6. Valve plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figures 1 to 3 In this embodiment, a vacuum loader flap valve structure includes a lever arm shaft 1, two lever arm plates 2 are provided on the lever arm shaft 1, connecting parts 5 are connected to the two lever arm plates 2, and a valve plate 6 is fixedly connected to the connecting part 5. The connecting part 5 includes two connecting plates and two fixing screws. One end of the fixing screw passes through the connecting plate and the lever arm plate 2 on the same side. A nut is threadedly installed on one end of the fixing screw. The valve plate 6 is fixedly connected to the two connecting plates respectively.

[0024] By adopting the above technical solution, the lever arm shaft 1 is rotated to rotate the power arm plate 2, so that the lever arm plate 2 drives the valve plate 6 to flip through the connecting piece 5, thereby realizing the opening and closing action of the control valve plate.

[0025] Example 2: Please refer to Figures 1 to 3In the embodiment of this embodiment, a movable shaft head 3 is provided at one end of the lever arm shaft 1, and a square groove is opened at one end of the lever arm shaft 1. One end of the movable shaft head 3 passes through and extends to the inside of the square groove. The cross-section of the movable shaft head 3 is square, which is convenient for disassembling the movable shaft head 3 on the lever arm shaft 1. A coupling 4 is provided at one end of the lever arm shaft 1. One end of the movable shaft head 3 passes through and extends to the inside of the lever arm shaft 1, and the other end of the movable shaft head 3 passes through and extends to the inside of the coupling 4. A square hole is opened inside the coupling 4, and one end of the movable shaft head 3 passes through and extends into the square hole inside the coupling 4, which is convenient for disassembling the movable shaft head 3 inside the coupling 4.

[0026] During installation, the two lever arm pieces 2 need to be placed on the pre-set positions of the lever arm shaft 1 respectively, ensuring that the mounting holes of the lever arm pieces 2 are aligned with the corresponding mounting positions on the lever arm shaft 1, pick up a fixing screw of the connector 5, insert it from the mounting hole of the connector on one side, and make it pass through the corresponding mounting hole of the lever arm piece 2 on the same side, then screw on the nut at the end through which the screw passes, and then use another fixing screw in the same way to fix the other connector piece to the corresponding lever arm piece 2, completing the connection operation between the connector 5 and the lever arm piece 2.

[0027] In addition, when connecting the coupling 4, the movable shaft head 3 and the lever arm shaft 1, pick up the coupling 4, align the square groove at one end of the lever arm shaft 1 with the square hole of the coupling 4, and then insert the movable shaft head 3 with a square cross-section into the square hole of the coupling 4 and the square groove of the lever arm shaft 1. During the insertion process, you can apply some slight thrust appropriately and slowly rotate the movable shaft head 3 to ensure that the movable shaft head 3 can be smoothly and accurately inserted into place, so that the coupling 4 and the lever arm shaft 1 are tightly and reliably connected through the movable shaft head 3, ensuring that the two can rotate synchronously in subsequent rotational movements without relative displacement or connection failure.

[0028] It should be noted that after completing the above-mentioned connection and assembly, a comprehensive appearance inspection of the entire device should be carried out to check whether the connection parts of each component are firm, and whether there are any abnormal gaps, signs of looseness, etc. At the same time, manually turn the coupling 4 gently to observe whether the arm shaft 1, arm plate 2, connector 5 and valve plate 6 can rotate smoothly, and check whether there are any abnormal phenomena such as jamming and excessive friction during the rotation process. Then, correctly connect the drive device to the coupling 4, perform wiring, parameter setting and other preparatory work according to the operating requirements of the drive device, start the drive device, and make it start running at a lower speed to drive the coupling to rotate, and then observe the rotation of the arm shaft 1 and other components to see whether they rotate in the expected direction and speed. At the same time, pay attention to the state of the valve plate 6 during the rotation process to see whether it can stably follow the rotation without abnormal vibration, offset, etc.

[0029] By adopting the above technical solution, the coupling 4 is controlled to rotate by the driving device, so that the coupling 4 drives the movable shaft head 3 inserted therein to rotate, thereby making the rotating movable shaft head 3 drive the power arm shaft 1 to rotate synchronously, so that the force arm shaft 1 drives the valve plate 6 to flip through the force arm plate 2 and the connecting piece 5, so as to control the opening and closing of the valve plate 6, and realize the setting of the movable shaft head 3 to be detachable, making it more convenient to disassemble and assemble the coupling 4 and the force arm shaft 1 with the movable shaft head 3 respectively, so that when the movable shaft head 3 is worn and deformed, it is only necessary to replace the corresponding movable shaft head 3, thereby reducing the cost of repairing the flap valve of the vacuum loader.

[0030] The working principle of the above embodiment is:

[0031] The flap valve structure of the vacuum loader controls the rotation of the coupling 4 through a driving device, so that the coupling 4 drives the movable shaft head 3 inserted therein to rotate, thereby making the rotating movable shaft head 3 drive the power arm shaft 1 to rotate synchronously, so that the force arm shaft 1 drives the valve plate 6 to flip through the force arm sheet 2 and the connecting piece 5, so as to control the opening and closing of the valve plate 6 and realize the material discharging state and the material blocking state of the vacuum loader. After the movable shaft head 3 is deformed in practice, the coupling 4 can be removed, and then the movable shaft head 3 plugged in at one end of the force arm shaft 1 can be removed and replaced, and the movable shaft head 3 that matches the size of the square groove on the force arm shaft 1 can be selected and reinstalled, thereby avoiding the need to replace all the flap force arm shaft heads, thereby reducing the cost of replacement and maintenance.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flap valve structure for a vacuum feeder, comprising a lever arm shaft (1), characterized in that: Two arm plates (2) are provided on the arm shaft (1); One end of the lever shaft (1) is provided with a movable shaft head (3), and one end of the lever shaft (1) is provided with a coupling (4). One end of the movable shaft head (3) penetrates and extends into the interior of the lever shaft (1), and the other end of the movable shaft head (3) penetrates and extends into the interior of the coupling (4).

2. The flap valve structure of a vacuum feeder according to claim 1, characterized in that: The two arm plates (2) are connected with a connecting piece (5), and the connecting piece (5) is fixedly connected with a valve plate (6).

3. The flap valve structure of a vacuum feeder according to claim 1, characterized in that: One end of the lever arm shaft (1) is provided with a square groove, and one end of the movable shaft head (3) passes through and extends into the interior of the square groove. The cross section of the movable shaft head (3) is square.

4. The flap valve structure of a vacuum feeder according to claim 1, characterized in that: A square hole is provided inside the coupling (4), and one end of the movable shaft head (3) passes through and extends into the square hole inside the coupling (4).

5. The flap valve structure of a vacuum feeder according to claim 2, characterized in that: The connecting member (5) includes two connecting plates and two fixing screws, one end of the fixing screw passes through the connecting plate and the force arm plate (2) on the same side, one end of the fixing screw is threadedly mounted with a nut, and the valve plate (6) is fixedly connected to the two connecting plates respectively.

Images