Sealing structure of elevator of corn harvester

Abstract

The utility model discloses a corn harvester lift conveyer sealing structure which comprises a lift conveyer body, the inside of the lift conveyer body is rotationally connected with a lift conveyer belt through a rotating shaft, the lift conveyer belt is used for lifting and conveying corn ears, and rubber sealing strips are fixedly installed at the outer ends of the two sides of the lift conveyer belt. An internal thread supporting pipe is fixedly installed on the outer side wall of the middle of the elevator body in a penetrating mode, a supporting screw rod is connected to the inner wall of the internal thread supporting pipe in a threaded mode, a sealing baffle is rotationally connected to the inner top end of the supporting screw rod through a rotating shaft, and limiting sliding rods are fixedly installed on the outer walls of the two sides of the sealing baffle. And the outer curved surface of the side end of the limiting sliding rod is movably connected with a limiting sliding pipe, and the inner side end of the sealing baffle is fixedly provided with an extending frame. The outer ends of the two sides of the lifting conveying belt are blocked and sealed, and meanwhile the friction effect of the lifting conveying belt in the corn ear lifting conveying process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of corn harvester elevators, in particular to a sealing structure for a corn harvester elevator. Background Art

[0002] The corn harvester elevator is one of the important parts of the corn harvester. Its main function is to transport the ears transported by the auger to the ear box. The elevator is mainly composed of the elevator driven shaft, elevator chain, elevator shell, elevator conveyor belt and elevator wheel. It is usually located on the right side of the tractor, connected to the ear auger in front and connected to the upper support plate of the rear frame in the back. In general, the corn harvester elevator plays an important role in the corn harvesting process and can effectively improve the harvesting efficiency and quality.

[0003] However, when the prior art is actually used, during the use of the corn harvester elevator, in order to avoid friction between the outer edge of the elevator belt and the inner wall of the elevator shell, a certain gap is left between the outer edge of the elevator belt and the inner wall of the elevator shell. However, when a certain gap is left between the outer edge of the elevator belt and the inner wall of the elevator shell, it is easy to cause corn to get stuck or leak during the lifting process. Utility Model Content

[0004] The purpose of the utility model is to provide a sealing structure for a corn harvester elevator to solve the problem that during the use of the corn harvester elevator proposed in the above background technology, when a conventional elevator belt is installed, in order to avoid friction between the outer edge of the elevator belt and the inner wall of the elevator shell, a certain gap is left between the outer edge of the elevator belt and the inner wall of the elevator shell. However, when a certain gap is left between the outer edge of the elevator belt and the inner wall of the elevator shell, it is easy to cause corn to get stuck or leak during the lifting process.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: it comprises an elevator body, wherein an elevator conveyor belt for lifting and conveying corn ears is rotatably connected inside the elevator body through a rotating shaft, and rubber sealing strips are fixedly installed on the outer ends of both sides of the elevator conveyor belt, an internal threaded support tube is fixedly installed through the outer wall of the middle part of the elevator body, a support screw is threadedly connected to the inner wall of the internal threaded support tube, and a sealing baffle is rotatably connected to the inner top of the support screw through a rotating shaft, and limiting sliding rods are fixedly installed on the outer walls of both sides of the sealing baffle, and the outer curved surfaces of the side ends of the limiting sliding rods are movably connected to the limiting sliding tubes, and an extension frame is fixedly installed on the inner end of the sealing baffle, and the inner end of the extension frame is rotatably connected to side end support rollers for rolling support for the outer ends of both sides of the elevator conveyor belt through a pin shaft;

[0006] A hidden groove is provided at the bottom of the sealing baffle, a limited telescopic rod is fixedly installed at the top of the hidden groove, a supporting roller is fixedly installed at the telescopic part at the top of the limited telescopic rod, and a supporting spring is fixedly installed at the upper end of the supporting roller.

[0007] Preferably, there are two rubber sealing strips, which are symmetrically distributed at the outer ends of both sides of the lifting conveyor belt.

[0008] Preferably, there are two internal threaded support tubes, which are symmetrically distributed on the outer side wall of the middle part of the elevator body, and the outer curved surface of the support screw is threadedly connected with a fastening nut for fastening and locking the support screw.

[0009] Preferably, the limiting slide rods are symmetrically distributed on the outer walls on both sides of the sealing baffle, and the limiting slide tubes are penetrated and movably connected to the outer walls at both ends of the elevator body, so that the sealing baffle can be linearly limited by the limiting slide tubes in cooperation with the limiting slide rods.

[0010] Preferably, there are several extension frames, which are symmetrically distributed in sequence along the inner ends of the sealing baffle.

[0011] Preferably, there are several hidden grooves, which are symmetrically distributed in sequence at the bottom of the sealing baffle, and the outer curved surface of the roller part at the lower end of the support roller is movably connected to the outer end surface of the rubber sealing strip, so that the rubber sealing strip is rollingly supported by the support roller.

[0012] Preferably, the upper top of the support spring is fixedly mounted on the inner top of the hidden groove, and the support spring is in a compressed state, so that the support roller is elastically supported by the support spring.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, when corn ears are lifted and transported obliquely upward inside the main body of the lifter, the lifting and transporting belt will drive the rubber sealing strip to fit and move along the outer curved surface of the roller part at the lower end of the support roller. When the rubber sealing strip fits and moves along the outer curved surface of the roller part at the lower end of the support roller, the elastic potential energy generated by the compressed state of the support spring in conjunction with the limiting telescopic rod will push the support roller to move linearly outward along the inner wall of the hidden groove. When the support roller moves linearly outward along the inner wall of the hidden groove, it will push the outer curved surface of the roller part at the lower end of the support roller to always fit against the outer end of the rubber sealing strip. When the outer curved surface of the roller part at the lower end of the supporting roller is always kept in contact with the outer end surface of the rubber sealing strip, the outer ends of both sides of the lifting conveyor belt can be blocked and sealed by the rubber sealing strip and the sealing baffle. When the rubber sealing strip and the sealing baffle block and seal the outer ends of both sides of the lifting conveyor belt, the outer ends of both sides of the lifting conveyor belt are further supported and rolled by the side end supporting rollers, thereby achieving the blocking and sealing of the outer ends of both sides of the lifting conveyor belt. At the same time, the side end supporting rollers cooperate with the supporting rollers to reduce the friction of the lifting conveyor belt when the corn ears are lifted and transported.

[0015] 2. The utility model also loosens the fastening nut by rotating. When the fastening nut is loosened, the support screw is rotated. When the support screw rotates, it will move left and right due to the effect of the threaded connection with the inner wall of the internal threaded support tube. When the support screw moves left and right, it will drive the sealing baffle to move left and right. When the sealing baffle moves left and right, it will drive the limiting slide bar to move straightly left and right along the inner wall of the limiting slide tube, so that the sealing baffle is limited in a straight line by the limiting slide tube and the limiting slide bar. When the sealing baffle moves left and right, it will drive the side end support roller to move left and right in a straight line. When the side end support roller moves left and right in a straight line, it can play a role in adjusting the distance between the side end support roller and the outer ends of both sides of the lifting conveyor belt, thereby avoiding the situation where the fitting distance between the side end support roller and the outer ends of both sides of the lifting conveyor belt is too large or too small. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a sealing structure of a corn harvester elevator of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the overall structure of a sealing structure of a corn harvester elevator of the utility model;

[0018] Figure 3 This is a partial structural schematic diagram of a sealing structure of a corn harvester elevator of the utility model;

[0019] Figure 4 The utility model is a schematic cross-sectional view of a local structure of a sealing structure of a corn harvester elevator.

[0020] In the figure: 1. Elevator body; 2. Elevator conveyor belt; 3. Rubber sealing strip; 4. Internal thread support tube; 5. Support screw; 6. Sealing baffle; 7. Extension frame; 8. Side support roller; 9. Hidden groove; 10. Limit telescopic rod; 11. Support roller; 12. Support spring; 13. Limit slide rod; 14. Limit slide tube. DETAILED DESCRIPTION

[0021] 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 in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution: it includes an elevator body 1, and a lifting and conveying belt 2 for lifting and conveying corn ears is rotatably connected inside the elevator body 1 through a rotating shaft. Rubber sealing strips 3 are fixedly installed on the outer ends of both sides of the lifting and conveying belt 2, and there are two rubber sealing strips 3, which are symmetrically distributed at the outer ends of both sides of the lifting and conveying belt 2. An internal threaded support tube 4 is fixedly installed through the outer wall of the middle part of the elevator body 1, and there are two internal threaded support tubes 4, which are symmetrically distributed at the outer wall of the middle part of the elevator body 1. A support screw 5 is threadedly connected to the inner wall of the internal threaded support tube 4, and a fastening nut for fastening and locking the support screw 5 is threadedly connected to the outer curved surface of the support screw 5, and the top end of the support screw 5 is threadedly connected to the inner wall of the internal threaded support tube 4. A sealing baffle 6 is rotatably connected through the rotating shaft, and limiting slide bars 13 are fixedly installed on the outer walls of both sides of the sealing baffle 6, and the limiting slide bars 13 are symmetrically distributed on the outer walls of both sides of the sealing baffle 6, and the outer curved surfaces of the side ends of the limiting slide bars 13 are movably connected with limiting slide tubes 14, and the limiting slide tubes 14 penetrate and fit and are movably connected to the outer walls of both ends of the elevator body 1, so that the sealing baffle 6 is linearly limited by the limiting slide tubes 14 and the limiting slide bars 13, and the inner ends of the sealing baffle 6 are fixedly installed with extension frames 7, and the number of extension frames 7 is symmetrically distributed in sequence with the inner ends of the sealing baffle 6, and the inner ends of the extension frames 7 are rotatably connected with side end support rollers 8 for rolling support of the outer ends of both sides of the lifting conveyor belt 2 through pin shafts;

[0023] A hidden groove 9 is provided at the bottom of the sealing baffle 6, and there are several hidden grooves 9, which are symmetrically distributed in sequence around the bottom of the sealing baffle 6. A limited telescopic rod 10 is fixedly installed at the top end of the hidden groove 9, and a support roller 11 is fixedly installed at the telescopic part of the lower top end of the limited telescopic rod 10, and the outer curved surface of the roller part at the lower end of the support roller 11 is movably connected to the outer end surface of the rubber sealing strip 3, so that the rubber sealing strip 3 is rollingly supported by the support roller 11, and a support spring 12 is fixedly installed at the upper end of the support roller 11, and the upper top of the support spring 12 is fixedly installed at the top end of the hidden groove 9, and the support spring 12 is in a compressed state, so that the support roller 11 is elastically supported by the support spring 12.

[0024] Working principle: When in use, the utility model controls the opening of the lifting and conveying belt 2. When the lifting and conveying belt 2 is opened, the corn ears to be lifted and transported obliquely upward inside the elevator body 1. When the corn ears are lifted and transported obliquely upward inside the elevator body 1, the lifting and conveying belt 2 will drive the rubber sealing strip 3 to move along the outer curved surface of the roller part at the lower end of the support roller 11. When the rubber sealing strip 3 moves along the outer curved surface of the roller part at the lower end of the support roller 11, the elastic potential energy generated by the compression state of the support spring 12 cooperates with the limiting telescopic rod 10 to push the support roller 11 to move straight outward along the inner wall of the hidden groove 9. When the support roller 11 moves straight outward along the inner wall of the hidden groove 9 When the outer curved surface of the roller part at the lower end of the support roller 11 is always kept in contact with the outer end surface of the rubber sealing strip 3, the outer ends of the two sides of the lifting and conveying belt 2 can be blocked and sealed by the rubber sealing strip 3 and the sealing baffle 6. When the rubber sealing strip 3 and the sealing baffle 6 block and seal the outer ends of the two sides of the lifting and conveying belt 2, the side end support rollers 8 can further support and roll the outer ends of the two sides of the lifting and conveying belt 2, thereby achieving the blocking and sealing of the outer ends of the two sides of the lifting and conveying belt 2. At the same time, the side end support rollers 8 cooperate with the support rollers 11 to reduce the friction of the lifting and conveying belt 2 when the corn ears are lifted and transported;

[0025] When the side support rollers 8 are moved linearly to the left and right, the side support rollers 8 are driven to move linearly to the left and right. When the side support rollers 8 are moved linearly to the left and right, the distance between the side support rollers 8 and the outer ends of the two sides of the lifting and conveying belt 2 can be adjusted, thereby avoiding the situation that the fitting distance between the side support rollers 8 and the outer ends of the two sides of the lifting and conveying belt 2 is too large or too small.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing structure for a corn harvester elevator, characterized in that: The invention comprises an elevator body (1), wherein a lifting and conveying belt (2) for lifting and conveying corn ears is rotatably connected inside the elevator body (1) via a rotating shaft, and rubber sealing strips (3) are fixedly installed on the outer ends of both sides of the lifting and conveying belt (2), and an internal thread support tube (4) is fixedly installed through the outer wall of the middle part of the elevator body (1), and a support screw (5) is threadedly connected to the inner wall of the internal thread support tube (4), and a sealing baffle (6) is rotatably connected to the inner top of the support screw (5) via a rotating shaft, and limiting slide bars (13) are fixedly installed on the outer walls of both sides of the sealing baffle (6), and the outer curved surface of the side end of the limiting slide bar (13) is movably connected to the limiting slide tube (14), and an extension frame (7) is fixedly installed on the inner end of the sealing baffle (6), and the inner end of the extension frame (7) is rotatably connected to the side end support roller (8) for rolling support of the outer ends of both sides of the lifting and conveying belt (2) via a pin shaft; A hidden groove (9) is provided at the bottom of the sealing baffle (6), a limited telescopic rod (10) is fixedly installed at the top end of the hidden groove (9), a support roller (11) is fixedly installed at the telescopic part at the bottom top end of the limited telescopic rod (10), and a support spring (12) is fixedly installed at the upper end of the support roller (11).

2. The sealing structure of a corn harvester elevator according to claim 1, characterized in that: There are two rubber sealing strips (3), which are symmetrically distributed at the outer ends of both sides of the lifting conveyor belt (2).

3. The sealing structure of a corn harvester elevator according to claim 2, characterized in that: There are two internal threaded support tubes (4), which are symmetrically distributed on the outer side wall of the middle part of the elevator body (1). The outer curved surface of the support screw (5) is threadedly connected with a fastening nut for fastening and locking the support screw (5).

4. A corn harvester elevator sealing structure according to claim 3, characterized in that: The limiting slide rod (13) is symmetrically distributed on the outer walls of both sides of the sealing baffle (6), and the limiting slide tube (14) penetrates and is movably connected to the outer walls at both ends of the elevator body (1), so that the sealing baffle (6) can be linearly limited by the limiting slide tube (14) in cooperation with the limiting slide rod (13).

5. The sealing structure of a corn harvester elevator according to claim 4, characterized in that: There are a plurality of extension frames (7), which are symmetrically distributed in sequence along the inner ends of the sealing baffle (6).

6. A corn harvester elevator sealing structure according to claim 5, characterized in that: The hidden grooves (9) are in a plurality of numbers and are symmetrically distributed in sequence at the bottom of the sealing baffle (6); the outer curved surface of the roller portion at the lower end of the support roller (11) is movably connected to the outer end surface of the rubber sealing strip (3), so that the rubber sealing strip (3) is rollingly supported by the support roller (11).

7. A corn harvester elevator sealing structure according to claim 6, characterized in that: The upper end of the support spring (12) is fixedly mounted on the inner top end of the hidden groove (9), and the support spring (12) is in a compressed state, so that the support roller (11) is elastically supported by the support spring (12).

Images