Power transmission device for agricultural machinery

Abstract

The utility model discloses a power transmission device for agricultural machinery, and relates to the technical field of transmission of agricultural machinery. The back plate comprises a back plate body, and further comprises a belt piece which is sleeved on the outer sides of two groups of adjusting turntables, and the other end of each adjusting turntable is provided with a baffle body; the connecting gear is rotationally connected to the central position of the back plate body, and an adjusting mechanism is arranged on the outer side of the connecting gear; and the driving mechanism is arranged on one side of the connecting gear. The worm part can drive the worm wheel part to rotate, when the worm wheel part rotates, the connecting gear can rotate along with the worm wheel part, the connecting gear can be meshed with the teeth on the inner sides of the adjusting plates, the two sets of adjusting plates can be expanded outwards at the same time, the connecting plates can make contact with the belt part, and therefore the belt part can be pushed up and down; and due to the fact that the arranged worm part and the arranged worm wheel part have the self-locking effect, the situation that the stability of tightness adjustment of the belt part is affected due to connection through a bolt or a lead screw is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of agricultural machinery transmission technology, especially relates to a power transmission device for agricultural machinery. BACKGROUND

[0002] Agricultural machinery is a relative concept, refers to all the mechanical general term for the category of agricultural implements used in agriculture, animal husbandry, forestry and fishery.

[0003] In the process of long time using agricultural machinery for ploughing by staff, the power transmission of agricultural machinery is easily loose and needs to be replaced, and the operation of the adjustable gear transmission of the existing agricultural machinery product is tedious and needs a lot of time to adjust, although it can be adjusted, but it is inconvenient for staff to operate and use and reduces work efficiency. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned shortcomings of prior art, the utility model provides a power transmission device for agricultural machinery, which can effectively solve the problems of prior art.

[0005] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0006] The utility model discloses a power transmission device for agricultural machinery, which comprises a back plate body, a symmetrical adjusting turntable connected to the left and right sides of the back plate body and a servo motor connected to one end of the adjusting turntable, and further comprises:

[0007] The belt part is sleeved on the outer side of the two groups of adjusting turntables, and the other end of the adjusting turntable is provided with a baffle body.

[0008] The connecting gear is rotatably connected to the central position of the back plate body, and the outer side of the connecting gear is provided with an adjusting mechanism.

[0009] The driving mechanism is arranged on one side of the connecting gear and is used for driving the connecting gear to rotate and adjust.

[0010] Further, the adjusting mechanism comprises an adjusting plate, a tooth condition and a bearing plate, the adjusting plate is symmetrically arranged on the left and right sides of the connecting gear, the tooth condition is fixed to the inner side of the adjusting plate, the other end of the tooth condition is engaged with the connecting gear, the bearing plate is fixed to the upper end face of the adjusting plate, and the adjusting plate and the bearing plate form an L-shaped structure.

[0011] Further, the inner wall of the back plate body is symmetrically provided with a limiting sliding groove, and the limiting sliding groove is located on the left and right sides of the connecting gear, one end of the adjusting plate is fixed with a limiting sliding block, and the limiting sliding block can slide up and down along the inside of the limiting sliding groove.

[0012] Further, the outer side of the bearing plate is fixed with a connecting plate, the inner side of the connecting plate is provided with a connecting groove, the connecting groove is in a circular arc structure, and the connecting groove is provided with a ball and is in contact with the inner wall of the belt piece.

[0013] Further, the driving mechanism comprises a worm wheel piece, a worm piece and an adjusting knob, the worm wheel piece is fixed at one end of the connecting gear, the worm wheel piece is rotationally connected to the inside of the back plate body, the worm piece is meshed and connected at one side of the worm wheel piece, and the adjusting knob is fixed at one end of the worm piece and located at the side of the back plate body away from the adjusting turntable.

[0014] The utility model has the following beneficial effects:

[0015] The worm piece can drive the worm wheel piece to rotate, the connecting gear can rotate when the worm wheel piece rotates, the connecting gear can be meshed with the teeth on the inner side of the adjusting plate, the two adjusting plates can be expanded outward at the same time, the connecting plate can be in contact with the belt piece, the belt piece can be pushed up and down, the tightness of the belt piece can be controlled, the ball in the connecting groove can ensure the stability of the belt piece, the worm piece and the worm wheel piece have self-locking effect, the position of the connecting plate can be adjusted quickly, the stability of the belt piece tightness adjustment is not affected by the bolt or the screw rod. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, 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 be obtained according to these drawings without creative labor.

[0017] Figure 1 It is a top view schematic diagram of the power transmission device for agricultural machinery of the utility model;

[0018] Figure 2 It is an inside view schematic diagram of the power transmission device for agricultural machinery of the utility model;

[0019] Figure 3 It is an inside view schematic diagram of the back plate body of the utility model;

[0020] Figure 4 It is a top view schematic diagram of the adjusting mechanism of the utility model;

[0021] Figure 5 It is a bottom view schematic diagram of the driving mechanism of the utility model.

[0022] In the drawings, the component list represented by each sign is as follows:

[0023] 1, back plate body; 2, adjusting turntable; 3, servo motor; 4, baffle body; 5, belt piece; 6, limit chute; 7, adjusting plate; 8, limit slider; 9, tooth condition; 10, bearing plate; 11, connecting gear; 12, worm gear piece; 13, worm piece; 14, adjusting knob; 15, connecting plate; 16, connecting groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0025] Please refer to Figures 1-5 The utility model discloses a kind of power transmission devices for agricultural machinery, including back plate body 1, adjusting turntable 2 and servo motor 3 connected in the left and right sides of back plate body 1 symmetrically and connected in one end of adjusting turntable 2, further comprising:

[0026] Belt piece 5 is tied in the outside of two groups of adjusting turntable 2, and the other end of adjusting turntable 2 is provided with baffle body 4;Back plate body 1 and baffle body 4 can be supported and limited by being set, and adjusting turntable 2 can be avoided to deviate and shake, then, servo motor 3 can drive adjusting turntable 2 to adjust drive, so that power transmission can be carried out through belt piece 5;

[0027] Connecting gear 11 is rotationally connected in the central position of back plate body 1, and adjusting mechanism is provided on the outside of connecting gear 11;Adjusting mechanism includes adjusting plate 7, tooth condition 9 and bearing plate 10, adjusting plate 7 is symmetrically arranged in the left and right sides of connecting gear 11, tooth condition 9 is fixed in the inside of adjusting plate 7, and the other end of tooth condition 9 is engaged with connecting gear 11, bearing plate 10 is fixed in the upper end surface of adjusting plate 7, and "L" shape structure is formed between adjusting plate 7 and bearing plate 10, the tooth condition 9 in the inside of adjusting plate 7 is engaged with connecting gear 11 by being set, when connecting gear 11 rotates, adjusting plate 7 can be adjusted to the outside by connecting gear 11, and bearing plate 10 can be pushed outwards;Connecting plate 15 is fixed on the outside of bearing plate 10, connecting groove 16 is formed in the inside of connecting plate 15, connecting groove 16 is circular arc structure, and ball is arranged in connecting groove 16 and contacts with the inner wall of belt piece 5, connecting plate 15 arranged on the outside of bearing plate 10 can contact with belt piece 5, so that belt piece 5 can be pushed up and down, and the tightness of belt piece 5 can be controlled, then, ball is arranged in connecting groove 16, and the stability of belt piece 5 can be guaranteed;

[0028] The inner wall of the back plate body 1 is symmetrically provided with a limiting sliding groove 6, and the limiting sliding groove 6 is located on the left and right sides of the connecting gear 11. One end of the adjusting plate 7 is fixed with a limiting sliding block 8, and the limiting sliding block 8 can slide up and down along the inside of the limiting sliding groove 6 for adjustment. The limiting sliding block 8 can slide along the inside of the limiting sliding groove 6, so as to limit the position of the adjusting plate 7, and the deviation and shaking of the adjusting plate 7 can be avoided, so as to ensure the stability of the tightness adjustment of the belt piece 5.

[0029] A driving mechanism is arranged on one side of the connecting gear 11 and is used for driving the connecting gear 11 to rotate for adjustment. The driving mechanism comprises a worm wheel 12, a worm gear 13 and an adjusting knob 14. The worm wheel 12 is fixed at one end of the connecting gear 11 and is rotatably connected to the inside of the back plate body 1. The worm gear 13 is meshingly connected to one side of the worm wheel 12. The adjusting knob 14 is fixed at one end of the worm gear 13 and is located on the side of the back plate body 1 away from the adjusting turntable 2. The adjusting knob 14 is held by hand and rotated, so as to drive the worm gear 13. When the worm gear 13 is adjusted to rotate, it can be meshed with the worm wheel 12, so as to drive the worm wheel 12 to adjust, thereby driving the connecting gear 11 to adjust, so that the connecting gear 11 drives the adjusting plate 7 to slide for adjustment, thereby facilitating subsequent processing. Since the worm gear 13 and the worm wheel 12 have a self-locking effect, the position of the connecting plate 15 can be quickly adjusted, and the stability of the tightness adjustment of the belt piece 5 is not affected by the bolts or the screw rod.

[0030] The above is only the preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement and improvement of the technical solutions described in the above embodiments, which are made by anyone skilled in the art, are within the protection scope of the present application.

Claims

1. A power transmission device for agricultural machinery, comprising a back plate body (1), an adjusting rotary disc (2) symmetrically connected to the left and right sides of the back plate body (1), and a servo motor (3) connected to one end of the adjusting rotary disc (2), characterized in that, Also include: Belt parts (5), set in two groups of adjusting the outside of the disc (2), the other end of the adjusting disc (2) is provided with a baffle body (4); Connecting gear (11), rotating connection in the central position of the back plate body (1), and the outside of the connecting gear (11) is provided with adjusting mechanism; Driving mechanism, provided on one side of the connecting gear (11), for driving the connecting gear (11) rotating adjustment.

2. A power transmission device for agricultural machines according to claim 1, characterized in that, The adjusting mechanism includes adjusting plate (7), tooth condition (9) and bearing plate (10), adjusting plate (7) is symmetrically arranged on both sides of the connecting gear (11), tooth condition (9) is fixed on the inside of the adjusting plate (7), and the other end of the tooth condition (9) is engaged with the connecting gear (11), bearing plate (10) is fixed on the upper end face of the adjusting plate (7), and the adjusting plate (7) and the bearing plate (10) form "L" shape structure.

3. A power transmission device for agricultural machines according to claim 2, characterized in that, The inner wall of the back plate body (1) is symmetrically provided with a limiting sliding groove (6), and the limiting sliding groove (6) is located on both sides of the connecting gear (11), one end of the adjusting plate (7) is fixed with a limiting sliding block (8), and the limiting sliding block (8) can slide up and down along the inside of the limiting sliding groove (6).

4. A power transmission device for agricultural machines according to claim 3, characterized in that, The outer side of the bearing plate (10) is fixed with a connecting plate (15), the inner side of the connecting plate (15) is provided with a connecting groove (16), the connecting groove (16) is a circular arc structure, and the connecting groove (16) is provided with a ball and contacts with the inner wall of the belt part (5).

5. A power transmission device for agricultural machines according to claim 1, characterized in that, The driving mechanism includes worm gear part (12), worm part (13), adjusting knob (14), worm gear part (12) is fixed on one end of the connecting gear (11), and the worm gear part (12) is rotatingly connected in the inside of the back plate body (1), the worm part (13) is engaged on one side of the worm gear part (12), the adjusting knob (14) is fixed on one end of the worm part (13), and the adjusting knob (14) is located on the side of the back plate body (1) away from the adjusting disc (2).

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