A mounting base for a thresher drive device

By setting a groove and slide plate structure on the mounting base of the thresher drive unit, the drive motor and diesel engine can be quickly adapted and the tension of the transmission belt can be precisely adjusted. This solves the problems of cumbersome power source switching and poor tension adjustment in the prior art, and improves the efficiency and applicability of the thresher.

CN224504102UActive Publication Date: 2026-07-17SICHUAN RUIZHIHE INTELLIGENT EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN RUIZHIHE INTELLIGENT EQUIP CO LTD
Filing Date
2025-08-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing threshers are cumbersome to install when switching power sources, and the tension adjustment of the drive belt is poor, resulting in low transmission efficiency.

Method used

Design a mounting base for a thresher drive unit. By setting a front slide groove and a rear slide groove on the first frame, the second frame can slide left and right to adjust the position of the drive motor or diesel engine, change the adjustment method of the transmission belt tension, and precisely adjust the pulley spacing by combining the rotating rod and connecting rod structure. The base is adapted to engine bases of different widths by using a sliding plate and frame.

Benefits of technology

It simplifies the power source switching process, improves the accuracy of transmission belt tension adjustment, avoids slippage, ensures transmission efficiency, and expands the application scenarios and versatility of the thresher.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224504102U_ABST
    Figure CN224504102U_ABST
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Abstract

This utility model discloses a mounting base for a thresher drive device. A first frame is mounted on the frame at one end of the thresher. The front end of the upper surface of the first frame has a front sliding groove, and the rear end has a rear sliding groove. Both the front and rear sliding grooves are U-shaped and their openings face each other. A second frame is mounted on the upper surface of the first frame and is used to mount the thresher drive device. The second frame can slide left and right within the front and rear sliding grooves to adjust the relative position of the thresher drive device and the blade tooth rod, thereby adjusting the tension of the drive belt. By providing the front and rear sliding grooves on the first frame and configuring the second frame, which is used to mount the drive motor or diesel engine, to slide left and right within the front and rear sliding grooves to adjust the tension of the drive belt, the adjustment process of the drive belt tension is more convenient and accurate, ensuring that the tension between the drive belt and the pulley is reasonable and avoiding slippage.
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Description

Technical Field

[0001] This utility model relates to the field of auxiliary installation equipment for threshers, specifically to a mounting base for a thresher drive device. Background Technology

[0002] Threshing machines, as common agricultural machinery, are mainly used for threshing hulled crops. They are generally placed on the ground by frames at both ends. The power source of threshing machines is usually a drive motor. The drive motor's driving pulley drives the driven pulley on the cutting tooth rod to rotate via a transmission belt. This causes the cutting tooth rod to strike and cut the crop stalks, thus achieving the purpose of threshing.

[0003] However, in actual use, because it needs to operate in farmland, there are often situations where it is impossible to connect to an external power source. Therefore, there is also a need to use a diesel engine as a power source. Both the drive motor and the diesel engine are installed by fitting their bases with the mounting base of the thresher. Since the width of the base of the drive motor and the base of the diesel engine are usually different, their mounting bases are not interchangeable. When it is necessary to switch between the drive motor and the diesel engine, the mounting base often needs to be replaced first, making the switching process between the drive motor and the diesel engine very cumbersome.

[0004] Furthermore, existing threshers transmit power via drive belts and pulleys, requiring proper tension between the belt and pulleys to prevent slippage. Current technology typically involves first fixing the drive motor or diesel engine and then installing the drive belt, making installation cumbersome. The tension can only be adjusted by controlling the belt's length, resulting in poor adjustment effectiveness.

[0005] Therefore, a mounting base for a thresher drive device is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a mounting base for a thresher drive device, in order to solve the problem that in the prior art, the installation of the transmission belt is relatively troublesome, and its tension can only be adjusted by controlling the length of the transmission belt, resulting in poor adjustment effect of the transmission belt tension.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a mounting base for a thresher drive device, wherein the thresher drive device drives the driven pulley of the blade tooth rod to rotate through a transmission belt, and includes a first frame and a second frame;

[0008] The first frame is mounted on the frame at one end of the threshing machine; the front end of the upper surface of the first frame is provided with a front sliding groove and the rear end is provided with a rear sliding groove; both the front sliding groove and the rear sliding groove are U-shaped and their openings face each other.

[0009] The second frame is disposed on the upper surface of the first frame and is used to install the threshing machine drive device;

[0010] The second frame can slide left and right within the front and rear slide grooves to adjust the relative position of the threshing machine drive unit and the knife tooth rod, thereby adjusting the tension of the transmission belt.

[0011] As a further technical solution to the above scheme, it also includes a rotating rod and a connecting rod; the left side of the rear slide groove is provided with multiple adjusting teeth; the left side of the front slide groove is provided with a vertical first connecting post, the upper part of the rotating rod is sleeved on the first connecting post and can rotate around the circumference of the first connecting post; the lower part of the rotating rod is provided with an elongated adjusting hole that matches the adjusting teeth; both ends of the connecting rod are provided with second connecting posts, the middle part of the rotating rod and the second frame are both sleeved on the second connecting posts and can rotate around the circumference of the second connecting posts; the rotation of the rotating rod drives the connecting rod to move in the left and right direction to adjust the position of the second frame; after the rotating rod is rotated and adjusted, the adjusting hole is fixed on different adjusting teeth.

[0012] As a further technical solution of the above solution, the threshing machine drive device is a drive motor or a diesel engine; the second frame includes a front frame, a left frame, a rear frame and a right frame; it also includes a sliding plate, which is slidably disposed on the front frame and the rear frame, and the sliding plate and the right frame are provided with mounting holes for mounting the drive motor or the diesel engine.

[0013] As a further technical solution of the above solution, the front frame and the rear frame are both "L" shaped by horizontal and vertical plates. A pad is fixedly provided at the front end and the rear end of the lower surface of the skateboard. The pad slides left and right on the horizontal plates of the front frame and the rear frame.

[0014] As a further technical solution of the above solution, the pad has a positioning hole, and each of the horizontal plates of the front frame and the rear frame has a strip hole arranged in the left and right direction; after the positioning bolt passes vertically through the positioning hole and the strip hole, the relative position between the pad and the front frame, and between the pad and the rear frame is locked by the locking nut.

[0015] As a further technical solution to the above scheme, diagonal bracing rods are also provided on the left and right sides of the first frame, and the diagonal bracing rods are fixedly connected to the frame.

[0016] As a further technical solution to the above solution, the mounting hole is a strip-shaped structure arranged along the front-back direction.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0018] 1. A front slide groove and a rear slide groove are provided on the first frame. The second frame, which is used to install the drive motor or diesel engine, is configured to slide left and right within the front slide groove and the rear slide groove. This changes the existing method of adjusting the tension of the transmission belt to adjusting the tension of the transmission belt by adjusting the distance between the driving pulley of the drive motor or diesel engine and the driven pulley on the toothed rod. This makes the adjustment of the tension of the transmission belt more convenient and accurate, ensuring that the tension between the transmission belt and the pulley is reasonable and avoiding slippage.

[0019] 2. The sliding plate and the right side frame of the second frame are used to mount the drive motor or diesel engine. The sliding plate can be slid left and right on the front and rear frames of the second frame to adjust the distance between the sliding plate and the right side frame, thereby accommodating the different widths of the engine and drive motor bases. When switching between the drive motor and the diesel engine, the position of the sliding plate on the front and rear frames can be adjusted so that the mounting holes on the sliding plate and the right side frame are aligned with the mounting positions on the drive motor or diesel engine base, allowing for quick adaptation. This avoids the cumbersome process of replacing the mounting base first, simplifies the power source switching process, and facilitates the use of the thresher. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the device structure of this utility model.

[0021] Figure 2 This is a schematic diagram showing the positional relationship between the second frame and the skateboard.

[0022] Figure 3 This is a schematic diagram showing the connection relationship between the adjusting gear, rotating rod, connecting rod, and second frame.

[0023] The meanings of the labels in the diagram are as follows:

[0024] Cutting tooth rod—1; Driven pulley—2;

[0025] First frame—3; Front slide rail—301; Rear slide rail—302; Adjusting gear—303;

[0026] Second frame—4; Rotating rod—401; Connecting rod—402; Mounting hole—403; Left frame—404; Right frame—405; Front frame—406; Rear frame—407; Strip hole—408;

[0027] Slide plate—5; Pad—501; Positioning hole—502;

[0028] Diagonal brace—6;

[0029] Rack 7. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so as to provide a better understanding of the concept of the present utility model, the technical problem solved, the technical features constituting the technical solution and the technical effects brought about.

[0031] like Figures 1-3 As shown, a mounting base for a thresher drive device is provided. The thresher drive device drives the driven pulley 2 of the toothed rod 1 to rotate via a transmission belt, and includes a first frame 3 and a second frame 4.

[0032] The first frame 3 is mounted on the frame 7 at one end of the threshing machine; the front end of the upper surface of the first frame 3 is provided with a front slide groove 301 and the rear end is provided with a rear slide groove 302; the front slide groove 301 and the rear slide groove 302 are both "U" shaped and their openings face each other.

[0033] The second frame 4 is disposed on the upper surface of the first frame 3 and is used to install the threshing machine drive device;

[0034] The second frame 4 can slide left and right within the front slide groove 301 and the rear slide groove 302 to adjust the relative position of the threshing machine drive device and the knife tooth rod 1, thereby adjusting the tension of the transmission belt.

[0035] When using this device, a front slide groove 301 and a rear slide groove 302 are provided on the first frame 3, and both the front slide groove 301 and the rear slide groove 302 are "U"-shaped, thus forming a drawer-like structure. At this time, the second frame 4 also slides left and right within the track formed by the front slide groove 301 and the rear slide groove 302. Since the cutter bar 1 is usually rotatably mounted on the frame 7 or detached from the compartment, the position of the driven pulley 2 of the cutter bar 1 is relatively fixed. By sliding the second frame 4 left and right, the distance between the driving pulley of the drive motor or diesel engine and the driven pulley 2 of the toothed rod 1 can be adjusted. This, in turn, adjusts the tension of the transmission belt fitted on the driving pulley and the driven pulley 2. This avoids the problem in the prior art where the tension of the transmission belt can only be adjusted by controlling the length of the transmission belt, effectively improving the accuracy of the transmission belt tension adjustment. It also ensures the tension between the transmission belt and the driving pulley and the driven pulley 2, enabling efficient transmission of rotation and preventing the transmission belt from slipping.

[0036] like Figure 1As shown, in a preferred embodiment, it also includes a rotating rod 401 and a connecting rod 402; the left side of the rear slide groove 302 is provided with multiple adjusting teeth 303; the left side of the front slide groove 301 is provided with a vertical first connecting post, the upper part of the rotating rod 401 is sleeved on the first connecting post and can rotate along the circumference of the first connecting post; the lower part of the rotating rod 401 is provided with an elongated adjusting hole that matches the adjusting teeth 303; both ends of the connecting rod 402 are provided with second connecting posts, the middle part of the rotating rod 401 and the second frame 4 are both sleeved on the second connecting posts and can rotate along the circumference of the second connecting posts; the rotation of the rotating rod 401 drives the connecting rod 402 to move in the left and right direction to adjust the position of the second frame 4; after the rotating rod 401 is rotated and adjusted, the adjusting hole is fixed on different adjusting teeth 303.

[0037] In this embodiment, when the position of the second frame 4 needs to be adjusted, since the upper part of the rotating rod 401 is sleeved on the first connecting post, the operator lifts the rotating rod 401 upwards and moves it around the first connecting post, causing the middle part of the rotating rod 401 to move left and right. The middle part of the rotating rod 401 and the second frame 4 are also connected by the same second connecting post, adapting to the upward lifting of the rotating rod 401. The middle part of the rotating rod 401 and the connection point between the second frame 4 and the second connecting post also rotate around the same direction, adjusting the left and right distances; thus achieving the adjustment of the second frame 4. Since the threshing machine drive device is installed on the second frame 4, adjusting the position of the threshing machine drive device adjusts the tension of the transmission belt. After adjustment, the adjusting hole of the rotating rod 401 is engaged with the adjusting tooth 303. The adjusting tooth 303 engages and limits the adjusting hole, fixing the position of the rotating rod 401 and fixing the relative position between the threshing machine drive device and the driven pulley 2 of the toothed rod 1, ensuring the stability of the threshing operation.

[0038] like Figure 1 and Figure 2 As shown, in a preferred embodiment, the threshing machine drive device is a drive motor or a diesel engine; the second frame 4 includes a front frame 406, a left frame 404, a rear frame 407 and a right frame 405; it also includes a slide plate 5, which is slidably disposed on the front frame 406 and the rear frame 407, and both the slide plate 5 and the right frame 405 are provided with mounting holes 403 for mounting the drive motor or the diesel engine.

[0039] In this embodiment, since different models of thresher drive devices require adjustment of the position between the second frame 4 and the driven pulley 2 of the toothed rod 1, different base mounting distances exist depending on the selection of the thresher drive device, whether it is a drive motor or a diesel engine. Therefore, a sliding plate 5 is set to slide left and right on the front frame 406 and the rear frame 407 to adjust the distance between the sliding plate 5 and the right frame 405. When the distance is exactly the same as the distance between the upper left and right mounting positions of the diesel engine or drive motor base, the position of the diesel engine or drive motor is adjusted so that the mounting holes 403 on the sliding plate 5 and the right frame 405 are aligned with the mounting positions on the drive motor or diesel engine base, allowing for quick adaptation. This avoids the cumbersome process of replacing the mounting base first, simplifies the power source switching process, facilitates the use of the thresher, and makes it easier to switch the working position of the thresher, effectively expanding the application scenarios of the thresher and increasing its versatility.

[0040] like Figure 2 As shown, in a preferred embodiment, the front frame 406 and the rear frame 407 are both "L"-shaped, composed of horizontal and vertical plates. A pad 501 is fixedly provided at the front end and rear end of the lower surface of the slide plate 5. The pad 501 slides left and right on the horizontal plates of the front frame 406 and the rear frame 407.

[0041] In this embodiment, a structure is provided for the sliding method between the front frame 406, the rear frame 407 and the slide plate 5. A pad 501 is fixedly provided at the front end and the rear end of the lower surface of the slide plate 5. The pad 501 slides between the "L"-shaped front frame 406 and the rear frame 407, thereby determining the sliding trajectory of the slide plate 5 and avoiding the situation where the drive motor or diesel engine slips off the mounting base due to the uncertain sliding direction of the slide plate 5.

[0042] like Figure 2 As shown, in a preferred embodiment, the pad 501 has a positioning hole 502, and each of the horizontal plates of the front frame 406 and the rear frame 407 has a strip hole 408 arranged in the left-right direction; after the positioning bolt passes vertically through the positioning hole 502 and the strip hole 408, the relative positions between the pad 501 and the front frame 406, and between the pad 501 and the rear frame 407 are locked by the locking nut.

[0043] This embodiment provides a specific structure for fixing the relative position between the sliding plate 5 and the second frame 4. The pad 501 has a positioning hole 502, which is a vertical hole. The front frame 406 and rear frame 407 each have a strip hole 408, which is axially aligned in the left-right direction and is also a vertical hole. When a tightening bolt passes through the positioning hole 502 and the strip hole 408, a locking nut is used to lock the pad 501 and the front / rear frame 406, increasing the force between them. This fixes the relative position between the pad 501 and the front / rear frame 406, preventing changes in the position of the sliding plate 5 when installing a drive motor or diesel engine, thus improving the usability of the device.

[0044] like Figure 1 and Figure 3 As shown, in a preferred embodiment, the first frame 3 is also provided with diagonal bracing rods 6 on the left and right sides, and the diagonal bracing rods 6 are fixedly connected to the frame 7.

[0045] In this embodiment, the left and right sides of the first frame 3 are also provided with diagonal bracing rods 6. The diagonal bracing rods 6 play a role in assisting to support the first frame 3, so as to prevent the connection point between the first frame 3 and the frame 7 from becoming loose or deformed due to the weight of the drive motor or diesel engine and the vibration during operation. It can also prevent the end of the first frame 3 away from the frame 7 from deflecting downwards.

[0046] like Figure 1 As shown, in a preferred embodiment, the mounting hole 403 is a strip-shaped structure arranged along the front-back direction.

[0047] In this embodiment, to accommodate power sources of different models, power, and specifications, the mounting hole 403 is a strip-shaped structure arranged along the front-to-back direction. This increases the effective range of the mounting hole 403, preventing misalignment due to differences in the front-to-back spacing of the base mounting positions when using drive motors or diesel engines of different models, power, and specifications (generally bolts and bolt mounting seats with bolt holes). To ensure the strength of the slide plate 5 and the right side frame 405, the mounting hole 403 can also be a two-section hole as shown in the figure, achieving the same effect.

[0048] The terms "connection" and "fixing" appearing in this utility model description can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this utility model should be understood according to the specific circumstances.

[0049] In the description of this utility model, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used only to indicate the orientation or positional relationship for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mounting base for a threshing machine drive device, wherein the threshing machine drive device drives the driven pulley (2) of the toothed rod (1) to rotate via a transmission belt, characterized in that, Including the first frame (3) and the second frame (4); The first frame (3) is mounted on the frame (7) at one end of the threshing machine; the front end of the upper surface of the first frame (3) is provided with a front slide groove (301) and the rear end is provided with a rear slide groove (302); the front slide groove (301) and the rear slide groove (302) are both "U" shaped and their openings face each other; The second frame (4) is disposed on the upper surface of the first frame (3) and is used to install the threshing machine drive device; The second frame (4) can slide left and right in the front slide groove (301) and the rear slide groove (302) to adjust the relative position of the threshing machine drive device and the knife tooth rod (1), thereby adjusting the tension of the transmission belt.

2. A mounting base for a thresher drive as claimed in claim 1, characterised in that, It also includes a rotating rod (401) and a connecting rod (402); the left side of the rear slide (302) is provided with multiple adjusting teeth (303); the left side of the front slide (301) is provided with a vertical first connecting post, the upper part of the rotating rod (401) is sleeved on the first connecting post and can rotate along the circumference of the first connecting post; the lower part of the rotating rod (401) is provided with a long strip-shaped adjusting hole that matches the adjusting teeth (303); both ends of the connecting rod (402) are provided with second connecting posts, the middle part of the rotating rod (401) and the second frame (4) are both sleeved on the second connecting posts and can rotate along the circumference of the second connecting post; the rotating rod (401) rotates and drives the connecting rod (402) to move in the left and right directions to adjust the position of the second frame (4); after the rotating rod (401) is rotated and adjusted, the adjusting hole is fixed on different adjusting teeth (303).

3. A mounting base for a thresher drive as claimed in claim 1, characterised in that, The threshing machine drive device is a drive motor or a diesel engine; the second frame (4) includes a front frame (406), a left frame (404), a rear frame (407) and a right frame (405); it also includes a slide plate (5), which is slidably disposed on the front frame (406) and the rear frame (407), and the slide plate (5) and the right frame (405) are provided with mounting holes (403) for mounting the drive motor or the diesel engine.

4. A mounting base for a thresher drive as claimed in claim 3, characterised in that, The front frame (406) and the rear frame (407) are both "L"-shaped, consisting of horizontal and vertical plates. A pad (501) is fixedly installed at the front end and the rear end of the lower surface of the slide plate (5). The pad (501) slides left and right on the horizontal plates of the front frame (406) and the rear frame (407).

5. A mounting base for a thresher drive unit as claimed in claim 4, characterised in that, The pad (501) has a positioning hole (502), and each of the horizontal plates of the front frame (406) and the rear frame (407) has a strip hole (408) arranged in the left and right direction. After the positioning bolt passes vertically through the positioning hole (502) and the strip hole (408), the relative positions between the pad (501) and the front frame (406), and between the pad (501) and the rear frame (407) are locked by the locking nut.

6. A mounting base for a thresher drive as claimed in claim 1, characterised in that, The first frame (3) is also provided with diagonal bracing rods (6) on the left and right sides, and the diagonal bracing rods (6) are fixedly connected to the frame (7).

7. A mounting base for a thresher drive as claimed in claim 3, characterised in that, The mounting hole (403) is a strip-shaped structure arranged in the front-to-back direction.