Scraper elevator for straw and forage

Abstract

The utility model is suitable for the technical field of forage conveying, and provides a straw forage scraper elevator which comprises a shell, a feeding port communicated with the interior of the shell is formed in the upper surface of the shell, a discharging port communicated with the interior of the shell is formed in the lower surface of the side, away from the feeding port, of the shell, and two chains used for transmission are arranged in the shell. A plurality of tooth-shaped steel scrapers and rubber flat-head scrapers are arranged on the two chains, the tooth-shaped steel scrapers and the rubber flat-head scrapers are alternately arranged on the two chains respectively and are connected through pin keys, each tooth-shaped steel scraper comprises a scraper body, a plurality of sawtooth-shaped tooth grooves are formed in the top of each scraper body, and each tooth-shaped tooth groove is communicated with the corresponding tooth groove. The tooth-shaped steel scraper adopts bionic design, simulates claws of animals, and can effectively scrape fibrous materials and prevent the materials from slipping, and the rubber flat-head scraper can prevent small-particle materials from leaking out, so that the sealing performance of the scraper elevator is improved, and the conveying efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of forage conveying technology, and more specifically, to a straw scraper lift. Background Technology

[0002] Scraper conveyors are important tools used in various factories to transport materials. They can continuously transport materials along a fixed route, and their loading and unloading are carried out during operation. They have the advantages of high production efficiency, compact structure, convenient manufacturing and maintenance, and easy automatic control.

[0003] Currently, the scrapers of scraper conveyors on the market are all flat-headed. Flat-headed scrapers have low friction, which makes them prone to slipping when conveying fibrous materials such as hay and straw. This causes the scraper to be unable to convey the fibrous materials, resulting in blockage of the feed inlet and affecting the conveying effect of hay. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a straw and forage scraper elevator that can effectively scrape fibrous materials and prevent the materials from slipping.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A straw and forage scraper conveyor includes a housing, inside which are two chains for transmission. Multiple toothed steel scrapers and rubber flat-head scrapers are arranged alternately on the two chains and connected by key pins. The toothed steel scraper includes a scraper blade, and the top of the scraper blade has multiple serrated grooves.

[0007] The present invention is further configured such that: a drive shaft is rotatably connected between the inner walls of the front and rear sides of the outer shell, and a driven shaft is rotatably connected between the inner walls of the front and rear sides of the outer shell away from the drive shaft; two parallel drive sprockets are fitted on the outer surface of the drive shaft located inside the outer shell, and two parallel driven sprockets are fitted on the outer surface of the driven shaft; two chains are respectively driven and connected to the two drive sprockets and the two driven sprockets; the front end of the drive shaft rotatably passes through the front surface of the outer shell; an input sprocket is fitted on the outer surface of the front end of the drive shaft; a feed inlet communicating with the interior is provided on the upper surface of the outer shell; and a discharge outlet communicating with the interior is provided on the lower surface of the outer shell on the side away from the feed inlet.

[0008] The present invention is further configured such that the toothed grooves on the scraper can also be rectangular, and the sidewalls of the toothed grooves are provided with shrinkage grooves, and a clamping block is slidably connected in the shrinkage grooves, and the clamping block can slide from the shrinkage grooves into the toothed grooves.

[0009] The present invention is further configured such that: a movable cavity is provided inside the scraper, the bottom of the shrinkage groove is connected to the movable cavity, a synchronous slide plate is slidably connected to the bottom wall of the movable cavity, a connecting plate is provided on the lower surface of the clamping block, and the lower side of the connecting plate extends into the movable cavity through the shrinkage groove and is connected to the synchronous slide plate.

[0010] The present invention is further configured such that: a push rod is provided on the rear surface of the synchronous slide plate, the other end of the push rod slides through the outer surface of the scraper, and a tension spring is provided between the synchronous slide plate and the inner wall of the movable cavity, which is movably sleeved on the outer surface of the push rod.

[0011] The present invention is further configured such that: a contact protrusion is provided on the rear inner wall of the outer shell, the contact protrusion is in the shape of a right trapezoid, the inclined surface of the contact protrusion is provided on the side near the feed inlet, the vertical surface of the contact protrusion is provided on the side near the discharge outlet, and the push rod located at one end of the scraper can contact and slide with the inclined surface and the horizontal surface of the contact protrusion.

[0012] The advantages of this utility model are:

[0013] Firstly, the toothed steel scraper of this utility model adopts a biomimetic design, mimicking the claws of animals, which can effectively scrape fibrous materials and prevent the materials from slipping. The rubber flat-head scraper can prevent small particles from leaking out, increase the sealing of the scraper elevator, and improve the conveying efficiency.

[0014] Secondly, this utility model can automatically clamp fibrous materials at the discharge port using a toothed steel scraper, and automatically release the fibrous materials at the discharge port. It is automatic and convenient, and further prevents the toothed steel scraper from slipping when scraping fibrous materials, thus improving the performance of the forage scraper elevator. Attached Figure Description

[0015] Figure 1 This is an isometric drawing of a straw and forage scraper conveyor according to the present invention;

[0016] Figure 2 This is a top view of the straw and forage scraper conveyor of this utility model;

[0017] Figure 3 for Figure 2 An isometric sectional view along the center AA;

[0018] Figure 4 for Figure 3 A magnified view of part I in the middle;

[0019] Figure 5 This is a schematic diagram of the toothed steel scraper of Embodiment 1 of this utility model;

[0020] Figure 6 This is a cross-sectional view of the toothed steel scraper of Embodiment 2 of this utility model;

[0021] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0022] Figure 8 This is a top view of the internal structure of the outer shell of this utility model.

[0023] In the diagram: 1. Outer casing; 2. Driven shaft; 3. Driven shaft; 4. Drive sprocket; 5. Input sprocket; 6. Driven sprocket; 7. Chain; 8. Toothed steel scraper; 9. Rubber flat-head scraper; 10. Feed inlet; 11. Discharge outlet;

[0024] 81. Scraper; 82. Toothed groove; 83. Shrinkage groove; 84. Clamping block; 85. Movable cavity; 86. Synchronous sliding plate; 87. Connecting plate; 88. Push rod; 89. Tension spring; 810. Contact protrusion. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Example 1

[0028] Please see Figure 1-5 The present invention provides the following technical solution:

[0029] Specifically, it refers to a straw and forage scraper conveyor, including a housing 1. A drive shaft 3 is rotatably connected between the inner walls of the front and rear sides of the housing 1. The front end of the drive shaft 3 rotatably extends through the front surface of the housing 1. An input sprocket 5 is fitted on the outer surface of the front end of the drive shaft 3. A driven shaft 2 is rotatably connected between the inner walls of the front and rear sides of the housing 1 away from the drive shaft 3. Two parallel drive sprockets 4 are fitted on the outer surface of the drive shaft 3 inside the housing 1. Two parallel driven sprockets 6 are fitted on the outer surface of the driven shaft 2. Two chains 7 are connected between the two drive sprockets 4 and the two driven sprockets 6.

[0030] In use, the input sprocket 5 is connected to an external motor drive, so that the input sprocket 5 can input power, which makes the drive shaft 3 synchronously drive the two drive sprockets 4 to rotate. The drive sprockets 4 drive the chain 7 to move, so that the two chains 7 move synchronously inside the outer shell 1.

[0031] The upper surface of the outer shell 1 is provided with a feed inlet 10 communicating with its interior, and the lower surface of the outer shell 1 away from the feed inlet 10 is provided with a discharge outlet 11 communicating with its interior. Multiple toothed steel scrapers 8 and rubber flat-head scrapers 9 are provided on the two chains 7. The multiple toothed steel scrapers 8 and multiple rubber flat-head scrapers 9 are alternately arranged on the two chains 7 and are all connected by pins. The toothed steel scraper 8 includes a scraper 81, and the top of the scraper 81 has multiple serrated grooves 82.

[0032] In use, the outer casing 1 is placed vertically, with the inlet 10 at the bottom and the outlet 11 at the top. Fibrous material is poured into the outer casing 1 through the inlet 10. At this time, the toothed steel scraper 8 and the rubber flat-head scraper 9 move synchronously with the chain 7, so that the fibrous material falling into the outer casing 1 is conveyed upward to the outlet 11 by the scraper. Meanwhile, the toothed steel scraper 8 adopts a biomimetic design, mimicking the claws of animals, which can effectively scrape the fibrous material and prevent the material from slipping. The rubber flat-head scraper 9 can prevent small particles from leaking out, increase the sealing of the scraper elevator, and improve the conveying efficiency.

[0033] Furthermore, this invention provides an improved embodiment two based on embodiment one.

[0034] Please see Figure 6-8 Specifically, the toothed groove 82 on the scraper 81 can also be rectangular. The side wall of the toothed groove 82 is provided with a shrinkage groove 83. A clamping block 84 is slidably connected in the shrinkage groove 83. The clamping block 84 can slide from the shrinkage groove 83 into the toothed groove 82. In this way, when the toothed steel scraper 8 scrapes fibrous materials, the clamping block 84 can clamp the fibrous materials falling into the toothed groove 82, further preventing the toothed steel scraper 8 from slipping when scraping fibrous materials, thus improving the use effect of the forage scraper elevator.

[0035] The scraper 81 has a movable cavity 85. The bottom of the contraction groove 83 is connected to the movable cavity 85. A synchronous slide plate 86 is slidably connected to the bottom wall of the movable cavity 85. A connecting plate 87 is provided on the lower surface of the clamping block 84. The lower side of the connecting plate 87 extends into the movable cavity 85 through the contraction groove 83 and is connected to the synchronous slide plate 86. A push rod 88 is provided on the rear surface of the synchronous slide plate 86. The other end of the push rod 88 slides through the outer surface of the scraper 81. A tension spring 89 is provided between the synchronous slide plate 86 and the inner wall of the movable cavity 85 and is movably sleeved on the outer surface of the push rod 88. When the tension spring 89 is not affected by the tension, the tension spring 89 will exert a tension on the synchronous slide plate 86, and the clamping block 84 will retract into the contraction groove 83 under the pull of the connecting plate 87.

[0036] A contact protrusion 810 is provided on the rear inner wall of the outer casing 1. The contact protrusion 810 is in the shape of a right trapezoid. The inclined surface of the contact protrusion 810 is located on the side near the feed inlet 10, and the vertical surface of the contact protrusion 810 is located on the side near the discharge outlet 11. The push rod 88 is located at one end of the scraper 81 and can contact and slide with the inclined surface and the horizontal surface of the contact protrusion 810.

[0037] When the toothed steel scraper 8 moves to the side near the feed inlet 10, the push rod 88 contacts the inclined surface of the contact protrusion 810. At this time, the inclined surface of the contact protrusion 810 exerts a pushing force on the push rod 88, causing the push rod 88 to push the synchronous slide plate 86 to slide in the movable cavity 85. At the same time, the tension spring 89 is stretched, and the connecting plate 87 drives the clamping block 84 to move out of the shrinkage groove 83, thereby clamping the fibrous material at the feed inlet 10. When the toothed steel scraper 8 moves to the side near the discharge outlet 11, the push rod 88 slides out of the contact protrusion 810. At this time, the tension spring 89 loses its restriction, thereby pulling the clamping block 84 to retract into the shrinkage groove 83, no longer clamping the fibrous material. At this time, the fibrous material can fall from the discharge outlet 11. Using the above structure, the fibrous material can be automatically clamped at the feed inlet 10 and automatically released at the discharge outlet 11, which is automatic and convenient.

[0038] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A straw forage scraper elevator comprising a housing (1) in which two chains (7) for transmission are arranged, characterized in that: A plurality of tooth-shaped steel scrapers (8) and rubber flat head scrapers (9) are arranged on the two chains (7), the plurality of tooth-shaped steel scrapers (8) and the plurality of rubber flat head scrapers (9) are alternately arranged on the two chains (7) respectively and are connected by pin keys, the tooth-shaped steel scraper (8) comprises a scraper (81), and a plurality of sawtooth-shaped tooth grooves (82) are formed in the top of the scraper (81).

2. The straw forage scraper elevator according to claim 1, characterized in that: The front and rear inner walls of the shell (1) are rotatably connected with a driving shaft (3), the front and rear inner walls of the shell (1) away from the driving shaft (3) are rotatably connected with a driven shaft (2), the outer surface of the driving shaft (3) in the shell (1) is sleeved with two front and rear parallel driving sprockets (4), the outer surface of the driven shaft (2) is sleeved with two front and rear parallel driven sprockets (6), two chains (7) are respectively transmissionally connected on the two driving sprockets (4) and the two driven sprockets (6), the front end of the driving shaft (3) rotatably penetrates out of the front surface of the shell (1), and the outer surface of the front end of the driving shaft (3) is sleeved with an input sprocket (5).

3. The straw forage scraper elevator according to claim 2, characterized in that: The upper surface of the shell (1) is provided with a feeding port (10) in communication with the inside of the shell (1), and the lower surface of the shell (1) away from the feeding port (10) is provided with a discharging port (11) in communication with the inside of the shell (1).

4. The straw forage scraper elevator according to claim 3, characterized in that: The tooth groove (82) formed in the scraper (81) can also be rectangular, a contraction groove (83) is formed in the side wall of the tooth groove (82), a clamping block (84) is slidably connected in the contraction groove (83), and the clamping block (84) can slide from the contraction groove (83) into the tooth groove (82).

5. The straw forage scraper elevator according to claim 4, characterized in that: An active cavity (85) is formed in the scraper (81), the bottom of the contraction groove (83) is in communication with the active cavity (85), a synchronous sliding plate (86) is slidably connected to the bottom wall of the active cavity (85), a connecting plate (87) is arranged on the lower surface of the clamping block (84), the lower side of the connecting plate (87) extends into the active cavity (85) through the contraction groove (83) and is connected with the synchronous sliding plate (86).

6. The straw forage scraper elevator according to claim 5, characterized in that: A push rod (88) is arranged on the rear surface of the synchronous sliding plate (86), the other end of the push rod (88) slidably penetrates out of the outer surface of the scraper (81), and a tension spring (89) movably sleeved on the outer surface of the push rod (88) is arranged between the synchronous sliding plate (86) and the inner wall of the active cavity (85).

7. The straw forage scraper elevator according to claim 6, characterized in that: A contact protrusion (810) is arranged on the rear inner wall of the shell (1), the contact protrusion (810) is a right trapezoid, the inclined surface of the contact protrusion (810) is arranged on the side close to the feeding port (10), the vertical surface of the contact protrusion (810) is arranged on the side close to the discharging port (11), and one end of the push rod (88) located on the scraper (81) can contact and slide on the inclined surface and the horizontal surface of the contact protrusion (810).

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