Anti-blocking delivery pump for powder delivery

Abstract

The utility model relates to the technical field of delivery pumps, in particular to an anti-blocking delivery pump for powder delivery, which comprises a feeding channel, a negative pressure pipe and a blanking pipe, the blanking pipe is connected with a collecting tank, the negative pressure pipe is provided with a negative pressure pump and a filter plate, the blanking pipe is provided with a rotating motor, and an output shaft of the rotating motor is fixedly connected with a first vertical bevel gear. The first vertical bevel gear is meshed with a transverse bevel gear, the transverse bevel gear is meshed with a second vertical bevel gear, a transverse mounting shaft of the second vertical bevel gear is fixedly connected with a brush rod, and a brush of the brush rod rotatably abuts against the filter plate; the top of the transverse bevel gear is fixedly connected with an upper stirring shaft, the bottom end of the transverse bevel gear is fixedly connected with a vertical mounting shaft, and the vertical mounting shaft is rotationally connected with a bottom supporting frame of the discharging pipe in a sleeving manner; according to the utility model, powder blocked on the filter plate is brushed off, and the powder is prevented from caking and gathering to influence the normal operation of material conveying.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying pumps, in particular to an anti-blocking conveying pump for powder conveying. Background Art

[0002] Pneumatic conveying is a specific application of fluidization technology, which uses the energy of airflow to convey granular materials along the airflow direction in a closed pipe. The pneumatic conveying device has a simple structure and is easy to operate. It can be used for horizontal, vertical or inclined conveying. When the existing pneumatic conveying pump is in use, in order to prevent the powder from clogging the pump body, a filter screen must be designed to block it. However, after long-term use, a large amount of powder will be blocked in the filter holes of the filter screen, which is easy to cause the filter holes to be blocked, affecting the normal operation of pneumatic conveying.

[0003] Chinese patent CN 217732002U discloses a pneumatic conveying pump for powder conveying, comprising a pneumatic conveying device body, a feed channel body is fixedly connected to the inner wall of a first fixed hole of the pneumatic conveying device body, a negative pressure pipe is fixedly connected to the inner wall of a second fixed hole, a negative pressure pump is arranged on the inner wall of the negative pressure pipe, and limiting slide grooves are arranged on the inner walls on both sides of the negative pressure pipe, a limiting slider is slidably connected to the inner wall of the limiting slide groove, a return spring is fixedly connected to the outer wall of one side of the limiting slider, and the return spring is fixedly connected to the inner wall of one side of the limiting slide groove, and the elliptical impact block and the impact groove are provided to prevent the raw material from clogging the filter hole and affecting the normal operation of the pneumatic conveying device body; however, when conveying powder, it is easy to cause blockage due to agglomeration and aggregation, which affects the normal operation of material conveying. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides an anti-blocking conveying pump for powder conveying, which is used to solve the above-mentioned technical problems.

[0005] A blocking-proof conveying pump for powder conveying, comprising a feed channel, a negative pressure pipe and a discharge pipe, wherein the discharge pipe is connected to a collecting tank, the negative pressure pipe is equipped with a negative pressure pump and a filter plate, the discharge pipe is equipped with a rotating motor, the output shaft of the rotating motor is fixedly connected to a first vertical bevel gear, the first vertical bevel gear is meshed with a transverse bevel gear, the transverse bevel gear is meshed with a second vertical bevel gear, the transverse mounting shaft of the second vertical bevel gear is fixedly connected to a brush rod, and the brush of the brush rod is in rotational contact with the filter plate;

[0006] The top of the transverse bevel gear is fixedly connected with an upper stirring shaft, and the bottom end of the transverse bevel gear is fixedly connected with a vertical installation shaft, and the vertical installation shaft is rotatably sleeved with the bottom support frame of the discharge pipe, and the vertical installation shaft is provided with a bottom extension shaft, and the upper stirring shaft and the bottom extension shaft are both provided with stirring blades.

[0007] Furthermore, the filter plate includes a supporting portion and a filtering portion, the supporting portion is provided with a connecting groove, the connecting groove is connected to a push block via a reset spring, and the push block is plugged into the inner wall of the negative pressure tube.

[0008] Furthermore, the transverse mounting shaft is rotatably sleeved with the center of the support portion.

[0009] Furthermore, the length of the brush rod is greater than the width of the filter part.

[0010] Due to the adoption of the above technical solution, compared with the prior art, the beneficial effects of the utility model include:

[0011] Through the meshing action of the No. 1 vertical bevel gear, the transverse bevel gear and the No. 2 vertical bevel gear, not only the powder blocked on the filter plate is brushed off by the rotating brush rod, but also the stirring blades of the upper stirring shaft stir the powder in the discharge pipe to prevent the powder from agglomerating and clogging in the discharge pipe. The stirring blades of the bottom extension shaft stir the powder entering the collecting tank to prevent the powder from gathering in the center of the collecting tank and affecting the upper powder from entering the collecting tank, thereby preventing the powder from agglomerating and agglomerating and affecting the normal operation of material transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the filter plate when the push block extends out of the connection slot;

[0014] Figure 3 It is a schematic diagram of the structure of the filter plate when the return spring is squeezed;

[0015] Figure 4 is a top view of the bottom support frame;

[0016] Figure markings, 1-feed channel, 2-negative pressure pipe, 3-discharge pipe, 4-collecting tank, 5-rotating motor, 6-vertical bevel gear No. 1, 7-transverse bevel gear, 8-vertical bevel gear No. 2, 9-brush rod, 10-upper stirring shaft, 11-vertical mounting shaft, 12-bottom support frame, 13-bottom extension shaft, 14-support part, 15-filter part, 16-reset spring, 17-push block, 18-transverse mounting shaft. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, other implementation methods or equivalent replacements obtained by those skilled in the art without creative work are all within the scope of protection of the utility model.

[0018] like Figure 1-4 As shown, a blocking-proof conveying pump for powder conveying comprises a feed channel 1, a negative pressure pipe 2 and a discharge pipe 3, a collecting tank 4 is connected to the discharge pipe 3 through a flange, a negative pressure pipe 2 is installed with a negative pressure pump and a filter plate, a rotary motor 5 is installed with the discharge pipe 3, a first vertical bevel gear 6 is fixedly connected to the output shaft of the rotary motor 5, the first vertical bevel gear 6 is meshed with a transverse bevel gear 7, the transverse bevel gear 7 is meshed with a second vertical bevel gear 8, a brush rod 9 is fixedly connected to the transverse mounting shaft 18 of the second vertical bevel gear 8, and the brush of the brush rod 9 is in rotational contact with the filter plate;

[0019] The top of the transverse bevel gear 7 is fixedly connected with an upper stirring shaft 10, and the bottom end of the transverse bevel gear 7 is fixedly connected with a vertical installation shaft 11, which is rotatably sleeved with a bottom support frame 12 of the feed tube 3. The vertical installation shaft 11 is provided with a bottom extension shaft 13, and both the upper stirring shaft 10 and the bottom extension shaft 13 are provided with stirring blades;

[0020] Under the action of the negative pressure pump, the conveyed powder enters the discharge pipe 3 from the feed channel 1 and falls into the collecting tank 4. Driven by the rotating motor 5, the No. 1 vertical bevel gear 6 rotates vertically, driving the horizontal bevel gear 7 to rotate in the horizontal plane, and the No. 2 vertical bevel gear 8 rotates vertically. The upper stirring shaft 10 and the bottom extension shaft 13 rotate with the horizontal bevel gear 7. The stirring blades of the upper stirring shaft 10 stir the powder in the discharge pipe 3 to prevent the powder from agglomerating and clogging. The stirring blades of the bottom extension shaft 13 stir the powder entering the collecting tank 4 to prevent the powder from gathering in the center of the collecting tank 4 and affecting the upper powder from entering the collecting tank 4. The brush rod 9 rotates with the No. 2 vertical bevel gear 8 to brush off the powder blocked on the filter plate to prevent the filter plate from being blocked, so that the negative pressure pump can operate normally.

[0021] In some embodiments of the utility model, preferably, the filter plate includes a support portion 14 and a filter portion 15, the support portion 14 is provided with a connecting groove, and the connecting grooves can be set to 2, 3 or 4 evenly distributed along the circumference, and each connecting groove is connected to a push block 17 through a reset spring 16, and the push block 17 is aligned with the inner wall slot of the negative pressure tube 2. Under the action of the reset spring 16, the push block 17 enters the slot; the transverse mounting axis of the No. 2 vertical bevel gear 8 is rotatably sleeved with the center of the support portion 14; the length of the brush rod 9 is greater than the width W of the filter portion 15.

[0022] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A blockage-proof delivery pump for powder delivery, comprising a feed channel (1), a negative pressure pipe (2) and a discharge pipe (3), wherein the discharge pipe (3) is connected to a collecting tank (4), and the negative pressure pipe (2) is equipped with a negative pressure pump and a filter plate, characterized in that: The feed tube (3) is installed with a rotating motor (5), the output shaft of the rotating motor (5) is fixedly connected to a first vertical bevel gear (6), the first vertical bevel gear (6) is meshed with a transverse bevel gear (7), the transverse bevel gear (7) is meshed with a second vertical bevel gear (8), the transverse mounting shaft (18) of the second vertical bevel gear (8) is fixedly connected to a brush rod (9), and the brush of the brush rod (9) is in rotational contact with the filter plate; The top of the transverse bevel gear (7) is fixedly connected to an upper stirring shaft (10), and the bottom of the transverse bevel gear (7) is fixedly connected to a vertical installation shaft (11). The vertical installation shaft (11) is rotatably sleeved with a bottom support frame (12) of a feed tube (3). The vertical installation shaft (11) is provided with a bottom extension shaft (13), and both the upper stirring shaft (10) and the bottom extension shaft (13) are provided with stirring blades.

2. The anti-blocking conveying pump for powder conveying according to claim 1, characterized in that: The filter plate comprises a support portion (14) and a filter portion (15); the support portion (14) is provided with a connecting groove; the connecting groove is connected to a push block (17) via a return spring (16); the push block (17) is plugged into the inner wall of the negative pressure tube (2).

3. The anti-blocking conveying pump for powder conveying according to claim 2, characterized in that: The transverse mounting shaft (18) is rotatably sleeved with the center of the support portion (14).

4. The anti-blocking conveying pump for powder conveying according to claim 2, characterized in that: The length of the brush rod (9) is greater than the width of the filter portion (15).

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