A self-adaptive tensioning mechanism for a cutting machine transmission belt

Abstract

The utility model belongs to cutting machine transmission technical field, especially relates to a cutting machine transmission belt self -adaptation tensioning mechanism. Include: concave cavity, floating rod, one end rotation is installed on the concave cavity, the other end rotation is installed with tension pulley, tension assembly, is arranged in the concave cavity, through the tension assembly is applied to the floating rod force, to the transmission belt is carried out tensioning adjustment. The concave cavity is set up on the cutter head connecting frame of cutting machine. Tension pulley and the bottom outer edge of cutting machine transmission belt around the interface. The utility model can be self -adaptation adjustment tensioning force of tension pulley through the elastic action of the tension assembly of arrangement, to realize the tensioning degree of transmission belt automatic regulation.

Description

Technical Field

[0001] This utility model belongs to the field of cutting machine transmission technology, and specifically relates to an adaptive tensioning mechanism for a cutting machine transmission belt. Background Technology

[0002] A lithium battery cutting machine is a cutting tool powered by lithium batteries, mainly used for cutting hard objects such as metal profiles, and has wide applications in the construction and manufacturing industries. For example, a handheld lithium battery cutting machine with patent publication number CN220093218U includes a connecting base, a drive power supply, a lifting handle, and a transmission cantilever. The connecting base houses a drive motor, and the transmission cantilever is fixedly connected to the connecting base. A transmission belt is installed inside the transmission cantilever. The drive motor and the grinding wheel blade are both connected to the transmission belt pulley. When the drive motor starts, the transmission belt drives the grinding wheel blade to rotate and cut.

[0003] However, the aforementioned cutting machine transmission lacks a tensioning structure for the transmission belt, and the existing tensioning structures are mostly fixed tensioning wheels, which cannot achieve the purpose of adaptive tension adjustment. Utility Model Content

[0004] The purpose of this invention is to provide an adaptive tensioning mechanism for a cutting machine drive belt. This invention can adaptively adjust the tension of the tensioning wheel through the elastic action of the tension components, thereby achieving automatic adjustment of the tension of the drive belt.

[0005] To solve the above-mentioned technical problems, this utility model provides an adaptive tensioning mechanism for a cutting machine drive belt, comprising:

[0006] Concave cavity;

[0007] A floating rod is rotatably mounted on the concave cavity at one end and a tensioning wheel is rotatably mounted on the other end;

[0008] A tension assembly is installed inside the concave cavity. The tension assembly applies force to the floating rod to adjust the tension of the transmission belt.

[0009] Preferably, the concave cavity is formed on the cutter head connecting frame of the cutting machine.

[0010] Preferably, the tensioning wheel is wound around the bottom outer edge of the transmission belt of the cutting machine.

[0011] Preferably, the tension assembly includes: a fixed rod, a slot, and an elastic element; the fixed rod is vertically installed in the concave cavity, the elastic element is sleeved on the fixed rod, and the upper and lower ends of the elastic element abut against the floating rod and the concave cavity, respectively; and the fixed rod is movably inserted into the slot, which is formed on the floating rod.

[0012] Preferably, the elastic element is a compression spring.

[0013] Preferably, it further includes an abutment block and a locking screw. The fixing rod is vertically threaded and locked in the concave cavity. The lower end of the fixing rod is fitted with the abutment block, so that the upper and lower ends of the abutment block abut against the elastic element and the concave cavity respectively. The locking screw is longitudinally threaded and locked to the cutter head connecting frame, and stops and presses the fixing rod.

[0014] Preferably, the tensioning wheel includes: an abutment wheel, a bearing, a locking bolt, and a retaining ring washer; the two segmented shaft cavities of the abutment wheel are rotatably mounted to the locking bolt via the bearing, the locking bolt is threaded onto the concave cavity, and the retaining ring washer is fitted on the locking bolt to stop and limit the bearing.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] This invention utilizes the elasticity of the tension components to adaptively adjust the tension of the tensioning wheel, thereby enabling adaptive adjustment of the tension of the transmission belt. Furthermore, the floating rod, through the opening of the I-shaped groove, avoids motion interference with the fixed rod and provides the tensioning wheel with up-and-down swinging motion. Attached Figure Description

[0017] Fig. 1 This is a structural diagram of an adaptive tensioning mechanism for a cutting machine transmission belt according to this utility model.

[0018] Fig. 2 This is a cross-sectional view of the tensioning wheel in this utility model.

[0019] Fig. 3 This is a structural diagram of a cutting machine drive belt adaptive tensioning mechanism installed on a cutter head connecting frame, according to this utility model.

[0020] In the diagram: 1-concave cavity, 2-floating rod, 3-tensioning wheel, 31-abutting wheel, 32-bearing, 33-locking bolt, 34-retaining ring washer, 4-tension assembly, 41-fixed rod, 42-slot, 43-elastic element, 44-abutting block, 45-locking screw, 5-transmission belt, 6-cutter head connecting frame. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0022] likeFigs. 1-3 As shown, this utility model embodiment specifically provides a self-adaptive tensioning mechanism for a cutting machine drive belt, including:

[0023] Concave cavity 1;

[0024] The floating rod 2 is rotatably mounted on the concave cavity 1 at one end and the tensioning wheel 3 is rotatably mounted on the other end;

[0025] Tension assembly 4 is installed in concave cavity 1. Tension assembly 4 applies force to floating rod 2 to adjust the tension of transmission belt 5.

[0026] The concave cavity 1 is formed on the cutter head connecting frame 6 of the cutting machine.

[0027] The tensioning wheel 3 is wound around the bottom outer edge of the transmission belt 5 of the cutting machine. By abutting the bottom of the transmission belt 5, the transmission belt 5 can be elastically floated and adaptively tensioned.

[0028] The tension assembly 4 includes a fixed rod 41, a slotted groove 42, and an elastic element 43. The fixed rod 41 is vertically installed inside the concave cavity 1, and the elastic element 43 is sleeved on the fixed rod 41. The upper and lower ends of the elastic element 43 abut against the floating rod 2 and the concave cavity 1, respectively. The fixed rod 41 is movably inserted into the slotted groove 42, which is located on the floating rod 2. The elasticity of the tension assembly 4 allows for adaptive adjustment of the tension of the tensioning wheel 3, thus automatically adjusting the tension of the transmission belt 5. Furthermore, the slotted groove 42 prevents the floating rod 2 from interfering with the movement of the fixed rod 41, allowing the tensioning wheel 3 to swing up and down.

[0029] The elastic element 43 is a compression spring made of alloy material, which extends its service life.

[0030] It also includes an abutment block 44 and a locking screw 45. A fixing rod 41 is vertically threaded and locked in the concave cavity 1. The lower end of the fixing rod 41 is fitted with an abutment block 44, so that the upper and lower ends of the abutment block 44 abut against the elastic element 43 and the concave cavity 1 respectively. The locking screw 45 is longitudinally threaded and locked to the cutter head connecting frame 6, and stops and presses the fixing rod 41 to achieve the assembly and fixation of the fixing rod 41 and the elastic element 43.

[0031] The tensioning wheel 3 includes: an abutment wheel 31, a bearing 32, a locking bolt 33, and a retaining ring washer 34. The two segmented shaft cavities of the abutment wheel 31 are rotatably mounted to the locking bolt 33 via the bearing 32. The locking bolt 33 is threaded and locked onto the concave cavity 1, and a retaining ring washer 34 is fitted onto the locking bolt 33 to stop and limit the movement of the bearing 32. This bearing 32 structure prevents wear caused by prolonged contact with the transmission belt 5, thus extending the service life of the tensioning wheel 3. The design of the locking bolt 33 and retaining ring washer 34 enhances the stability of the bearing 32 assembly.

[0032] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A self-adaptive tensioning mechanism for a cutting machine drive belt, characterized in that, include: Concave cavity (1); The floating rod (2) is rotatably mounted on the concave cavity (1) at one end and a tensioning wheel (3) is rotatably mounted on the other end; The tension assembly (4) is arranged in the concave cavity (1). The tension assembly (4) applies force to the floating rod (2) to adjust the tension of the transmission belt (5).

2. The adaptive tensioning mechanism for a cutting machine drive belt as described in claim 1, characterized in that, The concave cavity (1) is formed on the cutter head connecting frame (6) of the cutting machine.

3. The adaptive tensioning mechanism for a cutting machine drive belt as described in claim 1, characterized in that, The tensioning wheel (3) is wound around the bottom outer edge of the transmission belt (5) of the cutting machine.

4. The adaptive tensioning mechanism for a cutting machine drive belt as described in claim 1, characterized in that, The tension assembly (4) includes: a fixed rod (41), a slot (42), and an elastic element (43); the fixed rod (41) is vertically installed in the concave cavity (1), and the elastic element (43) is sleeved on the fixed rod (41). The upper and lower ends of the elastic element (43) abut against the floating rod (2) and the concave cavity (1), respectively; and the fixed rod (41) is movably inserted into the slot (42), which is opened on the floating rod (2).

5. The adaptive tensioning mechanism for a cutting machine drive belt as described in claim 4, characterized in that, The elastic element (43) is a compression spring.

6. The adaptive tensioning mechanism for a cutting machine drive belt as described in claim 4, characterized in that, It also includes an abutment block (44) and a locking screw (45). The fixing rod (41) is vertically threaded in the concave cavity (1). The abutment block (44) is sleeved on the lower end of the fixing rod (41), so that the upper and lower ends of the abutment block (44) abut against the elastic element (43) and the concave cavity (1) respectively. The locking screw (45) is longitudinally threaded and locked to the cutter head connecting frame (6), and stops and presses the fixing rod (41).

7. A self-adaptive tensioning mechanism for a cutting machine drive belt as described in any one of claims 1 to 6, characterized in that, The tensioning wheel (3) includes: an abutment wheel (31), a bearing (32), a locking bolt (33), and a retaining ring washer (34); the two divided shaft cavities of the abutment wheel (31) are rotatably installed with the locking bolt (33) through the bearing (32), the locking bolt (33) is threaded and locked on the concave cavity (1), and the retaining ring washer (34) is sleeved on the locking bolt (33) to stop and limit the bearing (32).

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