Operating rod steering automatic centering mechanism

Abstract

The utility model provides an operating lever steering automatic centering mechanism which comprises an operating lever, a reversing frame, a first sliding block, a second sliding block, a fixing pin, a first check ring, a spring, a second check ring and a lower spacer bush, the operating lever is connected to the reversing frame in an inserted mode, and the first sliding block, the second sliding block, the first check ring, the spring, the second check ring and the lower spacer bush are arranged in the operating lever. The first sliding block, the second sliding block, the first check ring, the spring, the second check ring and the lower spacer bush are sequentially arranged on the operating rod in a sleeving mode from top to bottom, the first sliding block is fixedly connected to the top end of the interior of the reversing frame, and the second sliding block is fixed to the operating rod through a fixing pin. The lower side face of the first sliding block is provided with an arc-shaped inwards-concave face, the upper side face of the second sliding block is provided with an arc-shaped outwards-convex face, and the arc-shaped inwards-concave face and the arc-shaped outwards-convex face are arranged in an aligned mode. The device is simple in structure, convenient to operate and capable of ensuring that the operating rod automatically returns to the neutral position when not needing to be operated, and working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a harvester technical field especially relates to a kind of operating lever steering automatic return mechanism. BACKGROUND

[0002] Harvester operating lever on market often needs manual to return to center after steering, operation is not convenient, and operation precision is not high.The design of automatic return mechanism makes operation more convenient, reduces the tediousness of driver manual operation.

[0003] Existing operating lever automatic return mechanism on market is often more complex in structure, higher in cost, needs more complex maintenance and maintenance.Drivers can need certain technical knowledge to operate and maintain. INVENTION CONTENTS

[0004] The utility model aims at providing a kind of operating lever steering automatic return mechanism to overcome the above problems or at least partially solve the above problems.

[0005] To achieve the above object, the technical scheme of the utility model is as follows:

[0006] The utility model provides a kind of operating lever steering automatic return mechanism, including swivel frame welding assembly, fixed plate one and fixed plate two, the left side and the right side of swivel frame welding assembly are respectively fixed with fixed plate two and fixed plate two.

[0007] The swivel frame welding assembly includes joystick, swivel frame, slider one, slider two, fixed pin, baffle one, spring, baffle two and lower spacer, the joystick is inserted in swivel frame, and joystick can rotate and move up and down along swivel frame, the inside of joystick is respectively provided with slider one, slider two, baffle one, spring, baffle two and lower spacer, and slider one, slider two, baffle one, spring, baffle two and lower spacer are sequentially set on joystick from top to bottom, the slider one is fixedly connected at the inside top end of swivel frame, the slider two is fixed on joystick by fixed pin.

[0008] The lower side of slider one is provided with arc inner concave surface, the upper side of slider two is provided with arc outer convex surface, and arc inner concave surface and arc outer convex surface are aligned.

[0009] As the further scheme of the utility model, the joystick and slider two are all provided with bolt hole, and the fixed pin is inserted in bolt hole.

[0010] As the still further scheme of the utility model, the upper side of slider one is provided with threaded hole in four corner positions, and the swivel frame is fixedly connected with slider one by bolt.

[0011] The utility model provides a kind of operating lever steering automatic return mechanism, beneficial effect lies in: simple structure, convenient operation can ensure that operating lever is automatically returned to neutral position when not needing operation, so that driver can faster carry out next operation, improve work efficiency;And in long-time harvesting operation, this mechanism can reduce the labor intensity of driver, driver does not need to keep an eye on the return of operating lever, reduce the fatigue of hand operation. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0013] Figure 1 It is the explosion structure schematic diagram of the utility model.

[0014] Figure 2 It is the structure schematic diagram of the utility model.

[0015] Figure 3 It is the front view of the utility model.

[0016] Figure 4 It is the structure schematic diagram of the rotary frame welding assembly in the utility model.

[0017] Figure 5 It is the utility model Figure 4 The local enlarged schematic diagram of A place in the utility model.

[0018] In the drawing: 1, joystick; 2, rotary frame; 3, slider one; 4, slider two; 5, fixed pin; 6, baffle ring one; 7, spring; 8, baffle ring two; 9, lower spacer sleeve; 11, fixed plate one; 12, fixed plate two; 13, rotary frame welding assembly; 31, arc-shaped inner concave surface; 41, arc-shaped outer convex surface. DETAILED DESCRIPTION

[0019] Exemplary embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0020] Reference Figures 1-5The utility model discloses an operating lever steering automatic centering mechanism, including the welding assembly of swivel frame 13, fixed plate one 11 and fixed plate two 12, and the left side and right side of welding assembly of swivel frame 13 are fixed with fixed plate two 12 and fixed plate two 12 respectively.

[0021] Welding assembly of swivel frame 13 includes operating lever 1, swivel frame 2, slider one 3, slider two 4, fixed pin 5, baffle ring one 6, spring 7, baffle ring two 8 and lower spacer 9, and operating lever 1 is inserted on swivel frame 2, and operating lever 1 can rotate and move up and down along swivel frame 2, and the inside of operating lever 1 is provided with slider one 3, slider two 4, baffle ring one 6, spring 7, baffle ring two 8 and lower spacer 9 respectively, and slider one 3, slider two 4, baffle ring one 6, spring 7, baffle ring two 8 and lower spacer 9 are sequentially set on operating lever 1 from top to bottom, slider one 3 is fixedly connected at the inside top end of swivel frame 2, and slider two 4 is fixed on operating lever 1 through fixed pin 5.

[0022] The lower side of slider one 3 is provided with arc inner concave surface 31, and the upper side of slider two 4 is provided with arc outer convex surface 41, and arc inner concave surface 31 and arc outer convex surface 41 are aligned.

[0023] Operating lever 1 and slider two 4 are all provided with bolt hole, and fixed pin 5 is inserted on bolt hole.

[0024] The upper side of slider one 3 is provided with threaded hole at four corner positions, and swivel frame 2 is fixedly connected with slider one 3 through bolt.

[0025] When operating lever 1 rotates, because swivel seat is fixed by fixed plate, so cannot rotate along, and slider two 4 is fixed with operating lever 1 through fixed pin 5, so rotates along operating lever 1, and then slider two 4 and slider one 3 rotate relatively, because the contact surface changes, slider two 4 moves downwards, and compresses spring 7.

[0026] When operating lever 1 stops rotating, spring 7 releases elastic force upwards, restores original state, makes slider two 4 rotate, moves upwards, and drives operating lever 1 to automatically center.

[0027] The above is only the embodiment of the present application, and is not used to limit the present application. For the person skilled in the art, the present application can have various changes and changes. Any modification, equivalent replacement, improvement etc. within the spirit and principle of the present application should be included in the claim scope of the present application.

Claims

1. An automatic centering mechanism for a control lever, comprising a rotating frame welding assembly (13), a first fixing plate (11), and a second fixing plate (12), characterized in that, The left and right sides of the rotary frame welding assembly (13) are respectively fixed with fixing plate two (12); The rotary frame welding assembly (13) includes a control lever (1), a rotary frame (2), a slider one (3), a slider two (4), a fixing pin (5), a retaining ring one (6), a spring (7), a retaining ring two (8), and a lower spacer (9). The control lever (1) is inserted into the rotary frame (2), and the control lever (1) can rotate and move up and down along the rotary frame (2). The control lever (1) is provided with slider one (3), slider two (4), retaining ring one (6), spring (7), retaining ring two (8), and lower spacer (9) respectively inside. Slider one (3), slider two (4), retaining ring one (6), spring (7), retaining ring two (8), and lower spacer (9) are sequentially sleeved on the control lever (1) from top to bottom. Slider one (3) is fixedly connected to the top of the inside of the rotary frame (2), and slider two (4) is fixed to the control lever (1) by a fixing pin (5). The lower side of the slider one (3) is provided with an arc-shaped concave surface (31), and the upper side of the slider two (4) is provided with an arc-shaped convex surface (41), and the arc-shaped concave surface (31) and the arc-shaped convex surface (41) are aligned.

2. The automatic return-to-center mechanism for steering levers according to claim 1, characterized in that, Both the control lever (1) and the slider (4) are provided with pin holes, and the fixing pin (5) is inserted into the pin holes.

3. The automatic return-to-center mechanism for steering levers according to claim 1, characterized in that, The upper side of the slider (3) is provided with threaded holes at the four corners, and the rotating frame (2) is fixedly connected to the slider (3) by bolts.

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