Adjustable belt drive reducer base

By designing an adjustable belt drive reducer base, the transmission belt can be precisely adjusted using an adjusting seat and screw structure. This solves the problem of inaccurate belt tension adjustment, improves transmission efficiency and service life, and simplifies the adjustment process.

CN224397079UActive Publication Date: 2026-06-23BAOTOU IRON & STEEL (GROUP) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BAOTOU IRON & STEEL (GROUP) CO LTD
Filing Date
2025-08-25
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing transmission belt tension adjustment is not precise enough, and the existing adjustment methods are complicated, unstable or costly, making it difficult to meet the requirements of transmission efficiency and service life.

Method used

An adjustable belt drive reducer base was designed. By incorporating an adjustment seat and a screw structure within the base and securing it with a nut, the reducer can be stably adjusted, ensuring the tightness of the drive belt can be regulated.

Benefits of technology

It enables precise adjustment of the transmission belt, improves transmission efficiency and service life, simplifies the adjustment process, and reduces complexity and cost.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224397079U_ABST
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Abstract

The utility model discloses an adjustable belt drive speed reducer base, including bottom plate, support frame and base, the bottom plate upper end both sides all have the support frame of welding, be located support frame top fixed with the base, and the bolt of support frame upper penetration is connected in the base, the inner groove of being located the through -going structure of the bottom end opening has, is located the inner groove welding has the connecting plate. The utility model through being equipped with the adjusting seat in the base inner end, the screw rod of screw structure's penetration has in the central position of adjusting seat, through the control lever to carry out the rotary adjustment to screw rod, make adjusting seat move left and right, then through two nuts to carry out the fixed screw rod, increased firmness, and then realize the adjustment of speed reducer, make the tightness of belt can realize the adjustment, and the connecting plate of sliding connection is equipped with in the front and back two sides of adjusting seat, and the screw rod drives adjusting seat to move left and right, and adjusting seat slides on the connecting plate, and the stability of adjusting seat is increased.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission equipment technology, specifically an adjustable belt drive reducer base. Background Technology

[0002] In systems that use a combination of motor and reducer with pulleys for transmission, such as conveyors and mixing equipment, the tension of the drive belt is crucial to transmission efficiency and service life. During use, the drive belt will loosen due to wear and stretching, requiring periodic adjustment of the center distance between the motor / reducer and the driven pulley to re-tension the belt.

[0003] Existing adjustment methods typically include: drilling elongated holes directly in the equipment frame and adjusting by moving the feet of the motor or reducer; however, the adjustment process may not be precise enough and can easily lead to installation instability. Some simple tensioning wheel devices are used, but this adds extra parts and complexity. Some adjustable bases have complex structures, high manufacturing costs, or are inconvenient to adjust and lack stability. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable belt drive reducer base to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable belt drive reducer base, comprising a base plate, a support frame and a base, wherein the upper sides of the base plate are welded with support frames, and the base is fixed at the top of the support frames, and bolts through the support frames are threaded into the base; the upper end of the base has an inner groove with a through structure, and a connecting plate is welded in the inner groove; the connecting plate has two symmetrical structures.

[0006] A rotatably connected screw is installed in the inner groove. The right end of the screw passes through the right end of the base via a bearing, and a control rod is welded to the right end of the screw. Nut B installed on the screw is located at the right end of the inner groove, and nut A installed on the screw is located at the right end of the base.

[0007] An adjusting seat with a threaded structure passes through the screw, and both ends of the adjusting seat slide through the connecting plate. A reducer is fixed to the upper end of the adjusting seat by bolts, and a pulley is installed at the front end of the reducer. A motor is installed at the rear end of the reducer.

[0008] As a preferred embodiment of this utility model, the base plate and the base are both rectangular steel plates with the same dimensions (mm).

[0009] As a preferred embodiment of this utility model, the support frame is a channel steel structure.

[0010] In a preferred embodiment of this invention, the width of the inner groove is less than the distance between the two support frames.

[0011] As a preferred embodiment of this utility model, a gap is provided between the outer end faces of the two connecting plates and the front and rear end faces of the inner groove.

[0012] As a preferred embodiment of this utility model, the right end of the base has a hollow structure.

[0013] In a preferred embodiment of this invention, the areas of both nut A and nut B are larger than the area of ​​the bearing.

[0014] As a preferred embodiment of this invention, the adjusting seat has a hollow internal structure.

[0015] As a preferred embodiment of this utility model, there is a gap between the front and rear end faces of the adjustment seat and the front and rear end faces of the inner groove.

[0016] As a preferred embodiment of this utility model, a gap is provided between the bottom end face of the mounting plate and the upper end face of the base.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. An adjusting seat is provided at the inner end of the base, and a threaded screw is passed through the center of the adjusting seat. The screw is rotated and adjusted by the control rod, so that the adjusting seat can move left and right. Then, the screw is fixed by two nuts, which increases the firmness and thus realizes the adjustment of the reducer, so that the belt tension can be adjusted.

[0019] 2. The front and rear sides of the adjusting seat are equipped with sliding connecting plates. When the screw drives the adjusting seat to move left and right, the adjusting seat slides on the connecting plates, which increases the stability of the adjusting seat. Attached Figure Description

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

[0021] Figure 2 This is a front view of the connection structure between the base plate and the reducer of this utility model;

[0022] Figure 3 This is a top view of the base and screw connection structure of this utility model;

[0023] Figure 4 This is a top view of the connection structure between the base and the adjustment seat of this utility model;

[0024] Figure 5 This is a schematic diagram of the connection structure between the adjustment seat and the motor of this utility model.

[0025] In the diagram: 1. Base plate; 2. Support frame; 3. Base; 4. Inner groove; 5. Connecting plate; 6. Screw; 7. Adjusting seat; 8. Mounting plate; 9. Reducer; 10. Motor; 11. Pulley; 12. Nut A; 13. Control lever; 14. Nut B. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. "Multiple" means two or more, and unless otherwise explicitly limited, all of them fall within the scope of protection of this utility model.

[0029] Example

[0030] like Figure 1-5 As shown, this utility model provides a technical solution: including a base plate 1, a support frame 2 and a base 3. The support frame 2 is welded to both sides of the upper end of the base plate 1. The base 3 is fixed at the top of the support frame 2, and the bolts that pass through the support frame 2 are threaded into the base 3. The upper end of the base 3 has an inner groove 4 with a through structure. A connecting plate 5 is welded in the inner groove 4. The connecting plate 5 has two symmetrical structures.

[0031] A rotatably connected screw 6 is installed in the inner groove 4. The right end of the screw 6 passes through the right end of the base 3 via a bearing. A control rod 13 is welded to the right end of the screw 6. Nut B14 installed on the screw 6 is located at the right end of the inner groove 4. Nut A12 installed on the screw 6 is located at the right end of the base 3.

[0032] A threaded adjusting seat 7 is threaded through the screw 6, and both ends of the adjusting seat 7 slide through the connecting plate 5. A reducer 9 is fixed to the upper end of the adjusting seat 7 by bolts, and a pulley 11 is installed at the front end of the reducer 9. A motor 10 is installed at the rear end of the reducer 9.

[0033] The base plate 1 and the base 3 are both rectangular steel plates with the same size of 20mm, which makes the whole device stable at a relatively high height.

[0034] Support frame 2 is a channel steel structure, which increases the firmness of the connection between the base and the bottom plate.

[0035] The width of the inner groove 4 is less than the distance between the two support frames 2 to prevent the adjustment seat from hitting the support frame during adjustment.

[0036] There is a gap between the outer end face of the two connecting plates 5 and the front and rear end faces of the inner groove 4.

[0037] The right end of base 3 has a hollow structure to facilitate the installation of the screw.

[0038] Both nuts A12 and B14 have larger areas than the bearing area, so the screw can be fixed by using two nuts.

[0039] The adjustment seat 7 has a hollow interior, which reduces its weight.

[0040] There are gaps between the front and rear end faces of the adjustment seat 7 and the front and rear end faces of the inner groove 4 to prevent the adjustment seat from scratching the base during the adjustment process.

[0041] There is a gap between the bottom surface of the mounting plate 8 and the top surface of the base 3.

[0042] Working principle:

[0043] First, place the base plate 1 in the preset installation position and fix it. The support frame 2 is fixed to the upper two sides of the base plate 1 by welding to form a stable support frame. Then, the base 3 is placed on top of the two support frames 2 and connected to the base 3 by bolts that pass through the support frames 2 and threaded connection to complete the fixing of the base 3 to the support structure. At this time, the base plate 1 and the base 3 are the same size, both being 20mm rectangular steel plates, forming a corresponding structure.

[0044] The upper end of the base 3 has a pre-set inner groove 4 with a through structure. Two symmetrical connecting plates 5 are welded inside the inner groove 4, and the outer end face of the connecting plate 5 is spaced from the front and rear end faces of the inner groove 4. The screw 6 is rotatably installed in the inner groove 4 through the bearing. The right end of the screw 6 passes through the right end of the base 3 through the bearing, and the control rod 13 is welded to the right end of the screw 6.

[0045] The adjusting seat 7 is threaded onto the screw 6. The front and rear ends of the adjusting seat 7 slide through the two connecting plates 5, and the front and rear end faces of the adjusting seat 7 are spaced apart from the front and rear end faces of the inner groove 4. The interior of the adjusting seat 7 is hollow. The reducer 9 is fixed to the upper end of the adjusting seat 7 with bolts. The motor 10 is installed at the rear end of the reducer 9 and the pulley 11 is installed at the front end. At the same time, a gap is maintained between the bottom end face of the mounting plate 8 and the upper end face of the base 3.

[0046] Rotating the control lever 13 drives the screw 6 to rotate in the inner groove 4. Since the adjusting seat 7 is restricted by the connecting plate 5, it can only slide along the connecting plate 5. When the screw 6 rotates, it drives the adjusting seat 7 to move left and right along the inner groove 4 through the thread transmission, thereby driving the reducer 9, motor 10 and pulley 11 to move synchronously, so as to realize the adjustment of the belt drive position.

[0047] Once the target position is reached, the screw is locked by tightening nuts A12 and B14 on the screw 6. Since the areas of nuts A12 and B14 are larger than the bearing area, the rotation of the screw 6 can be effectively restricted, ensuring the stability of the position of the adjusting seat 7 and related components.

[0048] Start the motor 10, which drives the reducer 9 to run. The reducer 9 achieves belt drive with the external equipment through the pulley 11 at the front end. During the entire transmission process, the stable structure formed by the base 3, support frame 2 and base plate 1 provides support for the transmission. The adjusted fixed position ensures the smooth operation of the belt drive.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An adjustable belt drive reducer base, comprising a base plate (1), a support frame (2), and a base (3), characterized in that: The base plate (1) has support frames (2) welded on both sides of the upper end. A base (3) is fixed at the top of the support frame (2). The bolts that pass through the support frame (2) are threaded into the base (3). The upper end of the base (3) has an inner groove (4) with a through structure. A connecting plate (5) is welded in the inner groove (4). The connecting plate (5) has two symmetrical structures. A rotatably connected screw (6) is installed in the inner groove (4). The right end of the screw (6) passes through the right end of the base (3) through a bearing. A control rod (13) is welded to the right end of the screw (6). Nut B (14) installed on the screw (6) is located at the right end of the inner groove (4). Nut A (12) installed on the screw (6) is located at the right end of the base (3). A threaded adjusting seat (7) is threaded through the screw (6), and both ends of the adjusting seat (7) are slidably threaded through the connecting plate (5). A reducer (9) is fixed to the upper end of the adjusting seat (7) by bolts, and a pulley (11) is installed at the front end of the reducer (9). A motor (10) is installed at the rear end of the reducer (9).

2. The adjustable belt drive reducer base according to claim 1, characterized in that: The base plate (1) and the base (3) are both rectangular steel plates with the same size of 20mm.

3. The adjustable belt drive reducer base according to claim 1, characterized in that: The support frame (2) is a channel steel structure.

4. The adjustable belt drive reducer base according to claim 1, characterized in that: The width of the inner groove (4) is less than the distance between the two support frames (2).

5. The adjustable belt drive reducer base according to claim 1, characterized in that: There is a gap between the outer end face of the two connecting plates (5) and the front and rear end faces of the inner groove (4).

6. The adjustable belt drive reducer base according to claim 1, characterized in that: The right end of the base (3) has a hollow structure.

7. The adjustable belt drive reducer base according to claim 1, characterized in that: The areas of both nut A (12) and nut B (14) are larger than the area of ​​the bearing.

8. The adjustable belt drive reducer base according to claim 1, characterized in that: The adjustment seat (7) has a hollow structure inside.

9. The adjustable belt drive reducer base according to claim 1, characterized in that: The front and rear end faces of the adjusting seat (7) are spaced apart from the front and rear end faces of the inner groove (4).

10. The adjustable belt drive reducer base according to claim 1, characterized in that: There is a gap between the bottom surface of the mounting plate (8) and the top surface of the base (3).