Rotary opening and closing valve of tubular conveyor

Abstract

The utility model relates to a rotary opening and closing valve of a tubular conveyor, which comprises an inner tube and an outer tube, the inner tube is rotatably sleeved in the outer tube, and the inner tube and the outer tube are coaxially arranged; a first discharging opening is formed in the outer side wall of the inner pipe, a second discharging opening is formed in the outer side wall of the outer pipe, a driving assembly is further fixedly installed on the outer side wall of the outer pipe, the driving assembly is in transmission connection with the inner pipe and enables the two discharging openings to be vertically aligned, a conveying assembly is further arranged in the inner pipe, and a gap is reserved between the conveying assembly and the inner wall of the inner pipe; the double-layer pipeline staggered arrangement mode is adopted, material leakage is prevented, in the discharging process, only the inner pipe needs to be driven to rotate, discharging work can be completed, the problem of material accumulation caused by dead angles can be completely avoided, the discharging port in the pipeline body is utilized by the discharging portion, and the discharging effect is good. Therefore, the discharging speed can be directly controlled by controlling the conveying assembly in the inner pipe, and the stability of the whole discharging structure is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tubular conveying equipment technical field, concretely relates to a tubular conveyor rotating on-off valve. BACKGROUND

[0002] The existing tubular conveyor intermediate discharge port is a flat valve arranged at the middle bottom of the conveyor shell, and opening the flat valve can complete the discharge of the materials in the shell, but the flat valve is easy to cause the materials in the dead angle above the valve to butt in the moment of closing, which affects the normal movement of the tubular conveyor.

[0003] There is also a switch valve plate arranged at the bottom of the shell and matched with the curvature of the shell, and the switch valve plate can realize the on-off control of the materials by rotating, but the arc-shaped valve plate is easy to deform due to the extrusion of the materials for a long time, which affects the normal use. SUMMARY

[0004] Based on the above description, the utility model provides a tubular conveyor rotating on-off valve to solve the problem that the existing tubular conveyor intermediate discharge valve is easy to cause the dead angle accumulation and the long-time extrusion to affect the normal use of the valve.

[0005] A tubular conveyor rotating on-off valve, comprising an inner tube and an outer tube, the inner tube is rotatably sleeved in the outer tube and coaxially arranged with the outer tube, and the outer tube is provided with a connecting flange at both ends and is in communication with the conveying pipeline; a first discharge port is arranged on the outer side wall of the inner tube, a second discharge port is arranged on the outer side wall of the outer tube, the first discharge port and the second discharge port are staggered, a driving assembly is fixedly installed on the outer side wall of the outer tube, the driving assembly is in transmission connection with the inner tube and can align the two discharge ports, and a conveying assembly is arranged in the inner tube and has a gap with the inner wall of the inner tube.

[0006] The utility model is realized through the following technical solutions:

[0007] Further, the connecting flange end face extends towards the center direction and makes the diameter of the through hole at the center of the end face the same as the diameter of the inner tube.

[0008] Further, a gap is left between the inner tube and the outer tube, a plurality of ball bearings are arranged in the gap, the inner tube passes through the center holes of the plurality of ball bearings and is locked and fixed, and the outer side walls of the plurality of ball bearings are fixedly connected with the inner wall of the outer tube.

[0009] Furthermore, the first discharge port is located at the top of the inner tube sidewall and faces upward, the second discharge port is located at the bottom of the outer tube sidewall and faces downward, and the outer sidewall of the inner tube is also provided with a C-shaped filler, and the two ends of the filler are respectively located on both sides of the first discharge port, and the outer sidewall of the filler is tightly fitted with the inner wall of the outer tube.

[0010] Furthermore, the first discharge port and the second discharge port extend along the pipe wall in an arc shape, and the length and width of the first discharge port are smaller than those of the second discharge port. A sealing ring is also provided on the outer wall of the ball bearing arranged on both sides of the first discharge port and the second discharge port.

[0011] Furthermore, the drive assembly includes a motor mount fixedly mounted on the outer tube, a drive motor mounted on the motor mount, the output end of the drive motor being horizontally arranged and connected to a drive wheel at the end, an arc-shaped opening being arranged on the outer side wall of the outer tube, and a transmission gear block being arranged around the outer side wall of the inner tube, the drive wheel passing through the arc-shaped opening and meshing with the transmission gear.

[0012] Furthermore, the outer wall of the outer tube is also provided with connecting lugs and is locked to the wall or ground by bolts.

[0013] Furthermore, the inner wall of the outer tube is coated with an anti-adhesion coating.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0015] This application improves upon the existing intermediate discharge valve structure of tubular conveyors by adopting a double-layer staggered pipe arrangement to prevent material leakage. During the discharge process, only the inner pipe needs to be rotated to align the discharge port on the inner pipe with the discharge port on the outer pipe, thus completing the discharge work. This not only completely avoids the problem of material accumulation due to dead corners, but also, since the discharge part utilizes the discharge port on the pipe body, the discharge speed can be directly controlled by controlling the conveying components inside the inner pipe, thereby avoiding the need for auxiliary control using structures such as raft plates, and greatly improving the stability of the entire discharge structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the outer tube in this embodiment;

[0017] Figure 2 This is an exploded structural diagram of the inner tube, outer tube, and ball bearing in this embodiment;

[0018] Figure 3 This is a schematic diagram of the internal structure of the outer tube in this embodiment;

[0019] Figure 4A structural schematic diagram of the driving assembly in the embodiment;

[0020] Wherein: 1, inner tube; 11, first discharge port; 12, filling piece; 13, transmission tooth block; 2, outer tube; 21, second discharge port; 22, arc-shaped opening; 23, connecting lug plate; 3, ball bearing; 4, driving assembly; 41, motor base; 42, driving motor; 43, driving wheel; 5, connecting flange. DETAILED DESCRIPTION

[0021] For the convenience of understanding the present application, the present application will be described more fully below with reference to the accompanying drawings. The embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0022] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person having ordinary skill in the art can realize it, and when the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present application.

[0023] In combination Figures 1-4 As shown in the drawings, a rotary opening and closing valve of a tubular conveyor includes:

[0024] The inner tube 1 is used for auxiliary conveying of materials, and a first discharge port 11 is arranged on the side wall of the pipeline of the inner tube 1;

[0025] The outer tube 2 is sleeved outside the inner tube 1 to protect the inner tube 1, and a second discharge port 21 is arranged on the outer side wall of the outer tube 2 and used for auxiliary discharging in cooperation with the first discharge port 11, and a wear-resistant coating for preventing adhesion is further arranged on the inner side wall of the outer tube 2;

[0026] The driving assembly 4 is arranged on the outer wall of the outer tube 2 and used to drive the inner tube 1 to rotate inside the outer tube 2, so that the first discharge port 11 is aligned or misaligned with the second discharge port 21, thereby achieving the opening and closing effect of discharging;

[0027] The conveying assembly is an existing plate chain conveying mechanism or a screw conveying mechanism, and is used for auxiliary conveying of powdery materials.

[0028] Specifically, in the embodiment, the outer tube 2 is further provided with a connecting flange 5 at each end, and the end face of the connecting flange 5 extends towards the center, so that the center hole diameter of the connecting flange 5 is the same as the diameter of the inner tube 1, and the connecting flange 5 is connected with the external conveying pipeline, so that the materials are directly conveyed to the inside of the inner tube 1 through the external pipeline.

[0029] On this basis, in order to ensure that the inner tube 1 and the outer tube 2 are kept coaxial arrangement, and the inner tube 1 in the process of rotation to reduce the friction between the outer tube 2, should be made between the inner tube 1 and the outer tube 2 leave a certain gap, then use the gap between the arrangement of at least 4 ball bearings 3 (can be increased according to the actual length of the inner tube 1 and the outer tube 2), namely the arrangement of the inner tube 1 and the outer tube 2 at both ends, and the first discharge port 11 and the second discharge port 21 on both sides, and the both sides of the ball bearing 3 should be sealed with sealing pad.

[0030] In the initial state, the first discharge port 11 is arranged on the outer wall of the inner tube 1, and the second discharge port 21 is arranged on the outer wall of the outer tube 2, which are staggered with each other, so as to avoid material leakage.

[0031] But in the actual use process, the powder material is easy to be affected by the humidity outside, so in order to ensure the sealing of the inner tube 1 in use, a C-shaped filler 13 should be arranged on the outer wall of the inner tube 1, for example Figure 3 As shown, the both ends are arranged on both sides of the first discharge port 11, so that when the inner tube 1 and the outer tube 2 are deflected to staggered arrangement, the filler 13 will completely block the hole on the second discharge port 21, so as to form a seal between the inner tube 1 and the outer tube 2, and in use, the automatic discharge can be realized through the alignment of the first discharge port 11 and the second discharge port 21.

[0032] The filler 13 should be made of rubber block with elasticity, and a wear-resistant coating should be added on the outer wall, and the end face of the both ends should be arc-shaped.

[0033] Moreover, in order to avoid the problem of material accumulation caused by the dead angle, the length and width of the first discharge port 11 should be smaller than those of the second discharge port 21, so as to ensure that the material discharged from the first discharge port 11 can be discharged to the outside of the pipeline through the second discharge port 21.

[0034] The driving assembly 4 is composed of a motor base 41, a driving motor 42 and a driving wheel 43, wherein the motor base 41 is fixedly installed on the outer wall of the outer tube 2, the driving motor 42 is arranged on the motor base 41 and the output end of the driving motor 42 is horizontally extended, and the driving wheel 43 is sleeved on the output end of the driving motor 42, and the outer wall of the driving wheel 43 is surrounded by a toothed structure.

[0035] On this basis, the outer wall of the outer tube 2 is also provided with an arc-shaped opening 22, which is connected to the gap between the inner tube 1 and the outer tube 2, and a transmission gear block is arranged around the outer wall of the inner tube 1 at the opening, and the transmission gear should leave a certain gap with the inner wall of the outer tube 2 to avoid affecting the rotation function of the inner tube 1.

[0036] The driving wheel 43 partially penetrates the arc-shaped opening 22 and extends between the inner tube 1 and the outer tube 2, and is engaged with the transmission tooth block by the gear structure on the outer wall, so as to realize the rotation of the inner tube 1 driven by the driving motor 42, so as to be remotely operated by the staff.

[0037] In the above structure, the outer tube 2 should be fixedly arranged, that is, the connecting lug plate 23 is arranged on the outer wall, and is locked and fixed with the installation base such as wall or ground by bolts, so as to improve the stability of the whole pipeline.

[0038] Finally, it should be pointed out that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present application.

Claims

1. A rotary opening and closing valve for a tubular conveyor, characterized in that, The device includes an inner tube (1) and an outer tube (2). The inner tube (1) is rotatably sleeved inside the outer tube (2) and arranged coaxially with the outer tube (2). Both ends of the outer tube (2) are respectively provided with connecting flanges (5) and connected to the conveying pipeline. The outer wall of the inner tube (1) is provided with a first discharge port (11) and the outer wall of the outer tube (2) is provided with a second discharge port (21). The first discharge port (11) and the second discharge port (21) are arranged alternately. A drive assembly (4) is also fixedly installed on the outer wall of the outer tube (2). The drive assembly (4) is connected to the inner tube (1) and can make the two discharge ports aligned vertically. A conveying assembly is also arranged inside the inner tube (1) and a gap is maintained between the inner tube (1) and the inner wall of the inner tube (1).

2. The rotary opening and closing valve for the tubular conveyor according to claim 1, characterized in that, The end face of the connecting flange (5) extends towards the center and the diameter of the through hole at the center of the end face is the same as the diameter of the inner tube (1).

3. The rotary opening and closing valve for the tubular conveyor according to claim 2, characterized in that, There is a gap between the inner tube (1) and the outer tube (2), and multiple ball bearings (3) are provided inside the gap. The inner tube (1) passes through the center hole of the multiple ball bearings (3) laterally and is locked and fixed. The outer side wall of the multiple ball bearings (3) is fixedly connected to the inner wall of the outer tube (2).

4. The rotary opening and closing valve for the tubular conveyor according to claim 3, characterized in that, The first discharge port (11) is located at the top of the side wall of the inner tube (1) and is arranged upwards. The second discharge port (21) is located at the bottom of the side wall of the outer tube (2) and is arranged downwards. A C-shaped filler (12) is also provided on the outer side wall of the inner tube (1). The two ends of the filler (12) are respectively located on both sides of the first discharge port (11). The outer side wall of the filler (12) is tightly fitted with the inner wall of the outer tube (2).

5. The rotary opening and closing valve for a tubular conveyor according to claim 4, characterized in that, The first discharge port (11) and the second discharge port (21) extend along the pipe wall in an arc shape, and the length and width of the first discharge port (11) are smaller than those of the second discharge port (21). A sealing ring is also provided on the outer wall of the ball bearing (3) arranged on both sides of the first discharge port (11) and the second discharge port (21).

6. The rotary opening and closing valve for a tubular conveyor according to claim 5, characterized in that, The drive assembly (4) includes a motor mount (41) fixedly mounted on the outer tube (2), a drive motor (42) is provided on the motor mount (41), the output end of the drive motor (42) is arranged horizontally and a drive wheel (43) is connected to the end, an arc-shaped opening (22) is arranged on the outer side wall of the outer tube (2), a transmission gear is arranged around the outer side wall of the inner tube (1), and the drive wheel (43) passes through the arc-shaped opening (22) and meshes with the transmission gear (13).

7. The rotary opening and closing valve for a tubular conveyor according to claim 6, characterized in that, The outer wall of the outer tube (2) is also provided with a connecting ear plate (23) and is locked to the wall or ground by bolts.

8. The rotary opening and closing valve for a tubular conveyor according to claim 7, characterized in that, The inner wall of the outer tube (2) is also coated with an anti-adhesion coating.

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