Driving structure for feeding door of hydraulic push rod feeding machine

Abstract

The utility model belongs to the technical field of rotary kiln feeding, and particularly relates to a hydraulic push rod feeding machine feeding door driving structure which comprises a hydraulic feeding machine, the upper surface of the hydraulic feeding machine is fixedly connected with a connecting pipeline, and the upper surface of the connecting pipeline is communicated with a feeding pipeline. When the rotary kiln feeding device is used, materials are poured into the feeding pipeline through the feeding hopper, fall into the hydraulic feeding machine through the connecting pipeline under the action of gravity, and are pushed into the rotary kiln incinerator to be incinerated by pushing the push plate through the internal multi-stage hydraulic cylinder, and after feeding is completed, the electric push rod is controlled to contract to pull the connecting rod to rotate. Due to the fact that the front electric push rod and the rear electric push rod are arranged in the opposite directions, the two rotating shafts rotate in the opposite directions to drive the driving door to seal the feeding pipeline, waste gas and heat generated in the rotary kiln incinerator are not prone to being discharged outwards through the feeding pipeline under blocking of the driving door, and pollution of the waste gas to the environment is reduced. And the heat source loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kiln feeding, in particular to a driving structure for the feeding door of a hydraulic push rod feeder. Background Technique

[0002] When processing materials through a rotary kiln incinerator, the waste heat of the rotary kiln incinerator can be recovered to reduce energy waste; in order to achieve continuous incineration of materials, a feeding mechanism is generally arranged at the feeding end of the rotary kiln incinerator. The feeding mechanism is mainly set as belt feeding or hopper feeding. The belt or hopper transports the materials to a storage tank, and the storage tank communicates with the feeding hole of the rotary kiln incinerator.

[0003] In some existing cases, the storage tank communicates with the feeding mechanism, which causes some waste gas and heat in the rotary kiln incinerator to be discharged from the feeding mechanism through the storage tank, easily causing environmental pollution and waste of heat sources; for this reason, a driving structure for the feeding door of a hydraulic push rod feeder is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a driving structure for the feeding door of a hydraulic push rod feeder to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A driving structure for the feeding door of a hydraulic push rod feeder, including a hydraulic feeder, a connecting pipe is fixedly connected to the upper surface of the hydraulic feeder, a feeding pipe is communicated with the upper surface of the connecting pipe, a pair of rotating shafts are rotatably connected to the inner side wall of the feeding pipe, support plates are fixedly connected to the front and rear side walls of the feeding pipe, electric push rods are hinged to the outer side walls of the support plates, the output ends of the two electric push rods are arranged in opposite directions, a connecting rod is fixedly connected to the outer side wall of the rotating shaft, one end of the connecting rod far away from the rotating shaft is hinged to the output end of the electric push rod, a pair of driving doors are arranged on the inner side wall of the feeding pipe, uniformly distributed connecting blocks are fixedly connected to the outer side wall of the rotating shaft, the outer side wall of the connecting block is fixedly connected to the outer side wall of the driving door, a pair of first chamfers are opened on the outer side wall of the driving door, and a feeding hopper is fixedly connected to the upper surface of the feeding pipe.

[0006] As a further preference of this technical solution: Connecting flanges are fixedly connected to the upper and lower surfaces of the feeding pipe, the upper surface of the connecting pipe and the lower surface of the feeding hopper.

[0007] As a further preference of this technical solution: A pair of retaining pieces are fixedly connected to the inner side wall of the feeding pipe.

[0008] As a further preference of the present technical solution: a retaining rod is fixedly connected to the inner side wall of the feeding pipeline, and a pair of second chamfers are provided on the lower surface of the retaining rod, and the first chamfer and the second chamfer are arranged corresponding to each other.

[0009] As a further preference of the present technical solution: uniformly distributed reinforcing ribs are fixedly connected between the side of the support plate away from the electric push rod and the outer side wall of the feeding pipeline.

[0010] As a further preference of the present technical solution: the driving door is made of double-layer heat-resistant steel, and heat-insulating materials are filled in the middle.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] When the present utility model is in use, materials are poured into the feeding pipeline through the feeding hopper. Under the action of gravity, the materials fall into the hydraulic feeding machine through the connecting pipeline. The internal multi-stage hydraulic cylinders push the push plate to push the materials into the rotary kiln incinerator for incineration. After the feeding is completed, the electric push rod is controlled to contract to pull the connecting rod to rotate, so that the rotating shaft drives the driving door to rotate 90° through the connecting block. Since the front and rear electric push rods are arranged in opposite directions, the two rotating shafts rotate in opposite directions, driving the driving door to close the feeding pipeline. Under the blockage of the driving door, the waste gas and heat generated in the rotary kiln incinerator are not easily discharged outward through the feeding pipeline, reducing the environmental pollution of the waste gas and reducing the loss of heat source. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the front view structural schematic diagram of the present utility model;

[0014] Figure 2 is the structural schematic diagram of the support plate, electric push rod and connecting rod in the present utility model;

[0015] Figure 3 is the sectional structural schematic diagram of the first chamfer, second chamfer and retaining piece in the present utility model;

[0016] Figure 4 is the structural schematic diagram of the rotating shaft, driving door and connecting block in the present utility model.

[0017] In the figure: 1, hydraulic feeding machine; 2, connecting pipeline; 3, feeding pipeline; 4, rotating shaft; 5, support plate; 6, electric push rod; 7, connecting rod; 8, driving door; 9, connecting block; 10, first chamfer; 11, feeding hopper; 12, connecting flange; 13, retaining piece; 14, retaining rod; 15, second chamfer; 16, reinforcing rib. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. The examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as limiting the present application. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0019] In the description of the present application, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0020] Please refer to Figures 1-4, the present utility model provides a technical solution: a driving structure for the feeding door of a hydraulic push-rod feeder, including a hydraulic feeder 1. A connecting pipe 2 is fixedly connected to the upper surface of the hydraulic feeder 1. A feeding pipe 3 is communicated with the upper surface of the connecting pipe 2. A pair of rotating shafts 4 are rotatably connected to the inner side wall of the feeding pipe 3. Support plates 5 are fixedly connected to the front and rear side walls of the feeding pipe 3. Electric push rods 6 are hinged to the outer side walls of the support plates 5. The output ends of the two electric push rods 6 are arranged in opposite directions. Connecting rods 7 are fixedly connected to the outer side walls of the rotating shafts 4. One end of the connecting rod 7 far from the rotating shaft 4 is hinged to the output end of the electric push rod 6. A pair of driving doors 8 are arranged on the inner side wall of the feeding pipe 3. Uniformly distributed connecting blocks 9 are fixedly connected to the outer side walls of the rotating shafts 4. The outer side walls of the connecting blocks 9 are fixedly connected to the outer side walls of the driving doors 8. A pair of first chamfers 10 are formed on the outer side walls of the driving doors 8. A feeding hopper 11 is fixedly connected to the upper surface of the feeding pipe 3; the hydraulic feeder 1 includes a multi-stage hydraulic cylinder, a push plate, a storage tank, etc.; during use, materials are poured into the feeding pipe 3 through the feeding hopper 11, and the materials fall into the hydraulic feeder 1 through the connecting pipe 2 under the action of gravity. The push plate is pushed by the internal multi-stage hydraulic cylinder to push the materials into the rotary kiln incinerator for incineration. After the feeding is completed, the electric push rod 6 is controlled to contract to pull the connecting rod 7 to rotate, so that the rotating shaft 4 drives the driving door 8 to rotate 90° through the connecting block 9. Since the front and rear two electric push rods 6 are arranged in opposite directions, the two rotating shafts 4 rotate in opposite directions, driving the driving door 8 to close the feeding pipe 3. Under the block of the driving door 8, the waste gas and heat generated in the rotary kiln incinerator are not easily discharged outward through the feeding pipe 3, reducing the environmental pollution of the waste gas and reducing the loss of heat source.

[0021] In this embodiment, specifically: connecting flanges 12 are fixedly connected to the upper and lower surfaces of the feeding pipe 3, the upper surface of the connecting pipe 2, and the lower surface of the feeding hopper 11; the three can be connected through the connecting flanges 12 in cooperation with multiple bolts.

[0022] In this embodiment, specifically: a pair of baffle plates 13 are fixedly connected to the inner side wall of the feeding pipe 3; the baffle plates 13 block the passage of materials to prevent the materials from falling into the gap between the driving door 8 and the inner wall of the feeding pipe 3, causing blockage.

[0023] In this embodiment, specifically: a stop rod 14 is fixedly connected to the inner side wall of the feeding pipe 3. A pair of second chamfers 15 are arranged on the lower surface of the stop rod 14. The first chamfers 10 and the second chamfers 15 are arranged corresponding to each other; when the two driving doors 8 are closed, the first chamfers 10 and the second chamfers 15 are mutually attached, improving the blocking effect on waste gas and heat source, and the stop rod 14 can block and limit the closed part.

[0024] In this embodiment, specifically: uniformly distributed reinforcing ribs 16 are fixedly connected between the side of the support plate 5 far from the electric push rod 6 and the outer side wall of the feeding pipe 3; the reinforcing ribs 16 improve the connection strength between the support plate 5 and the feeding pipe 3.

[0025] In this embodiment, specifically: the driving door 8 is made of double-layer heat-resistant steel, and the middle part is filled with heat-insulating material; the heat-resistant steel enables the driving door 8 to have good strength and heat resistance, and the heat-insulating material can reduce heat loss.

[0026] The working principle of the present utility model is as follows: during use, the material is poured into the feeding pipe 3 through the feeding hopper 11. Under the action of gravity, the material falls into the hydraulic feeder 1 through the connecting pipe 2. The material is pushed into the rotary kiln incinerator for incineration by the internal multi-stage hydraulic cylinder pushing the push plate. After the feeding is completed, the electric push rod 6 is controlled to contract to pull the connecting rod 7 to rotate, so that the rotating shaft 4 drives the driving door 8 to rotate 90° through the connecting block 9. Since the two electric push rods 6 are arranged in opposite directions, the two rotating shafts 4 rotate in opposite directions, driving the driving door 8 to close the feeding pipe 3. When the two driving doors 8 are closed, the first chamfer 10 and the second chamfer 15 are mutually attached, improving the blocking effect on waste gas and heat source. The blocking rod 14 can block and limit the closing position. Under the blocking of the driving door 8, the waste gas and heat generated in the rotary kiln incinerator are not easily discharged outward through the feeding pipe 3, reducing the environmental pollution of the waste gas and reducing the loss of heat source.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A driving structure for the feeding door of a hydraulic push-rod feeder, comprising a hydraulic feeder (1), characterized in that: The upper surface of the hydraulic feeder (1) is fixedly connected with a connecting pipe (2). The upper surface of the connecting pipe (2) is communicated with a feeding pipe (3). A pair of rotating shafts (4) are rotatably connected to the inner side wall of the feeding pipe (3). Support plates (5) are fixedly connected to the front and rear side walls of the feeding pipe (3). Electric push rods (6) are hinged to the outer side walls of the support plates (5). The output ends of the two electric push rods (6) are arranged in opposite directions. A connecting rod (7) is fixedly connected to the outer side wall of the rotating shaft (4). One end of the connecting rod (7) far from the rotating shaft (4) is hinged to the output end of the electric push rod (6). A pair of driving doors (8) are arranged on the inner side wall of the feeding pipe (3). Uniformly distributed connecting blocks (9) are fixedly connected to the outer side wall of the rotating shaft (4). The outer side wall of the connecting block (9) is fixedly connected to the outer side wall of the driving door (8). A pair of first chamfers (10) are formed on the outer side wall of the driving door (8). A feeding hopper (11) is fixedly connected to the upper surface of the feeding pipe (3).

2. The feeding door driving structure of a hydraulic push rod feeder according to claim 1, characterized in that: Connecting flanges (12) are fixedly connected to the upper and lower surfaces of the feeding pipe (3), the upper surface of the connecting pipe (2) and the lower surface of the feeding hopper (11).

3. The driving structure of the feeding door of a hydraulic push rod feeder according to claim 1, wherein: A pair of retaining plates (13) are fixedly connected to the inner side wall of the feeding pipe (3).

4. A feeding door driving structure of a hydraulic push rod feeder according to claim 1, characterized in that: A retaining rod (14) is fixedly connected to the inner side wall of the feeding pipe (3). A pair of second chamfers (15) are arranged on the lower surface of the retaining rod (14). The first chamfer (10) and the second chamfer (15) are arranged corresponding to each other.

5. A feeding door driving structure of a hydraulic push rod feeder according to claim 1, characterized in that: Uniformly distributed reinforcing ribs (16) are fixedly connected between the side of the support plate (5) far from the electric push rod (6) and the outer side wall of the feeding pipe (3).

6. The driving structure of the feed door of a hydraulic push rod feeder according to claim 1, characterized in that: The driving door (8) is made of double-layer heat-resistant steel, and heat-insulating materials are filled in the middle.

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