Progressive hydraulic pushing mechanism

Abstract

The utility model relates to the technical field of material conveying, and discloses a progressive hydraulic pushing mechanism which comprises a feeding channel, a hydraulic pusher and a hydraulic station, the feeding channel comprises a plurality of horizontally-pushing cavities distributed up and down, the tail end of the horizontally-pushing cavity on the upper portion is provided with a blanking opening communicated with the horizontally-pushing cavity on the lower portion, and the blanking opening is communicated with the horizontally-pushing cavity on the lower portion. The plurality of horizontal pushing cavities are sequentially connected to form a stepped feeding path, a feeding port is formed in the uppermost horizontal pushing cavity, and a discharging port is formed in the lowermost horizontal pushing cavity; a hydraulic pusher is arranged at the head end of each horizontal pushing cavity and used for pushing materials in the horizontal pushing cavity to the tail end of the horizontal pushing cavity. And the hydraulic station is used for providing hydraulic power for each hydraulic pusher. According to the progressive hydraulic material pushing mechanism, the multiple hydraulic material pushers are matched for progressive material pushing, long-distance material feeding can be achieved, the material pushing stroke requirement of each hydraulic material pusher is lowered, the stroke is shortened, the frequency of reciprocating motion of each hydraulic material pusher is increased, and the overall conveying efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying, in particular to a progressive hydraulic pushing mechanism. Background Art

[0002] During the material conveying process, there is often a need to feed the material a set distance, and in this case, a feeding mechanism is required to achieve this. Existing feeding mechanisms include chain conveying structures, spiral feeding structures, belt feeding structures, and hydraulic pushing structures. Among them, the chain conveying structure is suitable for conveying heavier materials, but since components such as chains are prone to rust, regular maintenance is required, and there is a lot of noise during operation; the spiral feeding structure uses spiral blades to push the material to the corresponding position, but the spiral blades are severely worn, need to be replaced regularly, and are prone to clogging; the belt feeding mechanism is suitable for conveying large pieces of material, heavier materials, etc., but it is noisy and prone to belt breakage and other problems, requiring regular inspection.

[0003] Hydraulic pushing is the simplest and most direct way of conveying, with the advantages of fast response and high thrust. However, when facing long-distance conveying conditions, the stroke of the hydraulic push rod is limited, and the reciprocating movement of the hydraulic push rod is slow, resulting in low conveying efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a progressive hydraulic pushing mechanism to overcome the drawbacks of various existing feeding forms and meet the requirements of long-distance and efficient feeding.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A progressive hydraulic pushing mechanism includes a feeding channel, a hydraulic pusher and a hydraulic station, wherein:

[0007] The feeding channel includes a plurality of horizontal push chambers distributed vertically. The end of the upper horizontal push chamber of any two adjacent horizontal push chambers is provided with a drop port communicating with the lower horizontal push chamber. The plurality of horizontal push chambers are sequentially connected to form a stepped feeding path. The uppermost horizontal push chamber is provided with a feed port, and the lowermost horizontal push chamber is provided with a discharge port.

[0008] A hydraulic pusher is provided at the head end of each horizontal push cavity, and the hydraulic pusher is used to push the material in the horizontal push cavity to the end of the horizontal push cavity;

[0009] The hydraulic station is used to provide hydraulic power for each hydraulic pusher.

[0010] As an alternative, the hydraulic pusher comprises a hydraulic cylinder and a push block, the output rod of the hydraulic cylinder is connected to the push block, the hydraulic cylinder is used to drive the push block to move to the first position or the second position alternately, when the push block is in the first position, the end face of the push block avoids the feeding port or the drop port of the flat push cavity above, so that the material is free to fall into the corresponding flat push cavity; when the push block is in the second position, the end face of the push block is flush with the drop port or the drop port of the flat push cavity below, so that the material is pushed into the drop port or the drop port of the flat push cavity below.

[0011] As an alternative, the size of the push block is greater than the size of the feeding port or the drop port, so that when the push block is in the second position, the push block blocks the feeding port or the drop port.

[0012] As an alternative, the push stroke of each hydraulic pusher is consistent.

[0013] As an alternative, each hydraulic pusher is synchronized.

[0014] As an alternative, a storage hopper is arranged at the feeding port.

[0015] The beneficial effects of the utility model are:

[0016] The progressive hydraulic pusher mechanism adopts multiple hydraulic pushers to cooperate with progressive pushing, can realize long-distance feeding, reduces the pushing stroke requirement of each hydraulic pusher, shortens the stroke, and accelerates the frequency of reciprocating action of each hydraulic pusher, thereby retaining the advantages of the hydraulic pusher form, and improving the overall conveying efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the structure schematic view of the progressive hydraulic pusher mechanism provided by the utility model embodiment.

[0018] In the drawings:

[0019] 1, feeding channel; 11, flat push cavity; 12, drop port; 13, feeding port; 14, drop port;

[0020] 2, hydraulic pusher; 21, hydraulic cylinder; 22, push block;

[0021] 3, hydraulic station;

[0022] 4, storage hopper. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0024] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0026] In the description of this embodiment, the terms "up", "down", "left", "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, 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. Therefore, they cannot be understood as limitations on the present invention.

[0027] In addition, the terms "first", "second", etc. are only used to distinguish in description and have no special meaning.

[0028] See also Figure 1 As shown, this embodiment provides a progressive hydraulic pushing mechanism, including a feeding channel 1, a hydraulic pusher 2 and a hydraulic station 3, wherein:

[0029] The feeding channel 1 comprises a plurality of vertically distributed flat push cavities 11. In any two adjacent flat push cavities 11, the end of the upper flat push cavity 11 is provided with a blanking port 12 communicating with the lower flat push cavity 11. The plurality of flat push cavities 11 are sequentially connected to form a stepped feeding path. The uppermost flat push cavity 11 is provided with an inlet 13, and the lowermost flat push cavity 11 is provided with an outlet 14.

[0030] The head end of each flat push cavity 11 is provided with a hydraulic pusher 2 for pushing the material in the flat push cavity 11 to the end of the flat push cavity 11.

[0031] The hydraulic station 3 is used to provide hydraulic power for each hydraulic pusher 2.

[0032] Thus, the use of multiple hydraulic pushers 2 in cooperation with progressive pushing can realize long-distance feeding, and the pushing stroke requirement of each hydraulic pusher 2 is reduced. The shortened stroke accelerates the frequency of reciprocating action of each hydraulic pusher 2, thereby retaining the advantages of the hydraulic pushing form while improving the overall conveying efficiency.

[0033] According to the required conveying distance and the pushing stroke of a single hydraulic pusher 2, the number of flat push cavities 11 and the number of corresponding hydraulic pushers 2 are designed. In this embodiment, three flat push cavities 11 and hydraulic pushers 2 are arranged as an example, and the number can be increased or decreased according to actual conditions.

[0034] Optionally, the hydraulic pusher 2 comprises a hydraulic cylinder 21 and a pushing block 22. The output rod of the hydraulic cylinder 21 is connected to the pushing block 22. The hydraulic cylinder 21 is used to drive the pushing block 22 to alternately move to a first position or a second position. When the pushing block 22 is in the first position, the end face of the pushing block 22 avoids the inlet 13 or the blanking port 12 of the upper flat push cavity 11, so that the material freely falls into the corresponding flat push cavity 11. When the pushing block 22 is in the second position, the end face of the pushing block 22 is flush with the outlet 14 or the blanking port 12 of the lower flat push cavity 11, so that the material is pushed into the outlet 14 or the blanking port 12 of the lower flat push cavity 11.

[0035] Further, the size of the pushing block 22 is greater than the size of the inlet 13 or the blanking port 12, so that when the pushing block 22 is in the second position, the pushing block 22 blocks the inlet 13 or the blanking port 12, avoiding the material from entering the head end of the flat push cavity 11 and causing material jamming.

[0036] Optionally, the pushing stroke of each hydraulic pusher 2 is consistent, thereby shortening the pushing stroke of each hydraulic pusher 2. The pushing strokes of the multiple hydraulic pushers 2 are stacked and progressive, which can meet the requirement of long-distance conveying.

[0037] Optionally, the hydraulic pushers 2 are synchronously operated, so that the discharging frequency of the actual discharging port 14 is consistent with the pushing frequency of the single hydraulic pusher 2, and the single hydraulic pusher 2 has a short stroke and a high operation frequency, so that the discharging frequency of the discharging port 14 is also high.

[0038] Optionally, a storage hopper 4 is arranged at the feeding port 13.

[0039] In addition, the hydraulic station 3 is provided with a pressure oil circuit, a control oil circuit and a return oil circuit, which control the output power of each hydraulic pusher 2. The hydraulic station 3 is a prior art, and will not be further described here.

[0040] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. Progressive hydraulic pushing mechanism, characterized by: It comprises a feeding channel (1), a hydraulic pusher (2) and a hydraulic station (3), wherein: The feeding channel (1) comprises a plurality of horizontal push cavities (11) distributed vertically, wherein the end of the horizontal push cavity (11) located above any two adjacent horizontal push cavities (11) is provided with a drop opening (12) communicating with the horizontal push cavity (11) located below, and the plurality of horizontal push cavities (11) are sequentially connected to form a stepped feeding path, wherein the uppermost horizontal push cavity (11) is provided with a feed opening (13), and the lowermost horizontal push cavity (11) is provided with a discharge opening (14); A hydraulic pusher (2) is provided at the head end of each horizontal push cavity (11), and the hydraulic pusher (2) is used to push the material in the horizontal push cavity (11) to the end of the horizontal push cavity (11); The hydraulic station (3) is used to provide hydraulic power for each of the hydraulic pushers (2).

2. The progressive hydraulic pushing mechanism according to claim 1, characterized in that: The hydraulic pusher (2) comprises a hydraulic cylinder (21) and a pusher block (22), an output rod of the hydraulic cylinder (21) is connected to the pusher block (22), and the hydraulic cylinder (21) is used to drive the pusher block (22) to move alternately to a first position or a second position; When the pushing block (22) is in the first position, the end surface of the pushing block (22) avoids the feed port (13) or the drop port (12) of the horizontal push cavity (11) above, so that the material falls freely into the corresponding horizontal push cavity (11); When the pushing block (22) is in the second position, the end surface of the pushing block (22) is flush with the discharge port (14) or the blanking port (12) of the horizontal pushing cavity (11) below, so that the material is pushed into the discharge port (14) or the blanking port (12) of the horizontal pushing cavity (11) below.

3. The progressive hydraulic pushing mechanism according to claim 2, characterized in that: The size of the pushing block (22) is larger than the size of the feed port (13) or the blanking port (12), so that when the pushing block (22) is in the second position, the pushing block (22) blocks the feed port (13) or the blanking port (12).

4. The progressive hydraulic pushing mechanism according to claim 1, characterized in that: The pushing strokes of the hydraulic pushers (2) are consistent.

5. The progressive hydraulic pushing mechanism according to claim 1, characterized in that: Each of the hydraulic pushers (2) moves synchronously.

6. The progressive hydraulic pushing mechanism according to claim 1, characterized in that: A material storage hopper (4) is provided at the feed inlet (13).

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