A gear transmission structure for anti-lock ring saws

Abstract

This utility model relates to a ring saw device, specifically to an anti-lock ring saw gear transmission structure, including a drive shaft, a first friction wheel, a second friction wheel, and a transmission gear. The second friction wheel is fitted onto the drive shaft, and the first friction wheel is installed at the end of the drive shaft. An installation gap is provided between the first and second friction wheels on the outside of the drive shaft. The transmission gear is located in the installation gap and is clamped by the cooperation of the first and second friction wheels. The drive shaft transmits power to the transmission gear through the first and second friction wheels, realizing non-lock transmission. During use, when the transmission gear jams and stops rotating, the first and second friction wheels can continue to rotate under the drive of the drive shaft, and the transmission relationship between the drive shaft and the transmission gear is disconnected, avoiding structural damage to the drive shaft and the drive shaft.

Description

Technical Field

[0001] This utility model relates to a ring saw device, specifically to an anti-lock ring saw gear transmission structure. Background Technology

[0002] When a ring saw with gear drive is used, its speed may slow down or stop when it comes into contact with a hard object or when the load is too high due to other reasons. At this time, the motor continues to output power, which can lead to damage to the motor, the ring saw blade, or the gear drive structure. Therefore, an anti-lock transmission structure is needed for the ring saw to disconnect the transmission relationship between the motor and the ring saw in time when the load on the ring saw is too high, thereby reducing damage to the device. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an anti-lock ring saw gear transmission structure, which uses the cooperation of a first friction wheel and a second friction wheel to clamp the transmission gear, thereby realizing the installation of the transmission gear and power transmission. When the load on the ring saw blade is too large, the transmission relationship is disconnected.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an anti-lock ring saw gear transmission structure, including a transmission shaft, a first friction wheel, a second friction wheel, and a transmission gear. The transmission shaft is connected to the first and second friction wheels and drives them to rotate. An installation gap is provided on the transmission shaft between the first and second friction wheels. The transmission gear is disposed in the installation gap, and its two end faces respectively abut against the first and second friction wheels. The transmission gear is driven to rotate by the first and second friction wheels. The first and second friction wheels cooperate to install the transmission gear. The transmission shaft drives the transmission gear to rotate through the first and second friction wheels to achieve power transmission. When the transmission gear jams and stops rotating, the first and second friction wheels can continue to rotate under the drive of the transmission shaft.

[0005] As an optional embodiment of this invention, the end of the drive shaft is provided with a threaded hole, the first friction wheel is provided with a first mounting hole, and a threaded connector is provided in the first mounting hole. The first friction wheel is located at the end of the drive shaft, and the threaded connector is connected to the threaded hole. The drive shaft is provided with a top support, and the second friction wheel is provided with a second mounting hole. The second friction wheel is fitted onto the drive shaft and abuts against the top support. After the transmission gear is installed, the first friction wheel is installed at the end of the drive shaft, and the first friction wheel and the transmission gear are pressed against the top support, so that the first and second friction wheels cooperate to install the transmission gear.

[0006] As an optional solution of this utility model, a limiting ring is also included. The limiting ring is fitted onto the drive shaft and within the installation gap. The limiting ring and the first friction wheel are an integral structure, and the transmission gear is fitted onto the outside of the limiting ring. The limiting ring not only facilitates the installation and alignment of the first friction wheel, but also facilitates the installation of the transmission gear.

[0007] As an optional solution of this utility model, a power receiving part is provided on the drive shaft. The drive shaft is connected to driving components such as motors through the power receiving part to realize the transmission of power.

[0008] As an optional solution of this utility model, the power receiving part is a bevel gear.

[0009] As an optional solution of this utility model, a mounting bearing is provided on the drive shaft. By installing the bearing, the drive shaft can be connected to the housing or other structures of the ring saw device, thereby realizing the installation of the drive shaft.

[0010] Compared with the prior art, the present invention has the following advantages: an installation gap is provided between the first friction wheel and the second friction wheel, and the transmission gear is set in the installation gap. The first friction wheel and the second friction wheel cooperate to clamp the transmission gear, and the power is transmitted by relying on the friction between them. The transmission shaft drives the first friction wheel and the second friction wheel to rotate, which drives the transmission gear to rotate. It is a non-locking connection. When the transmission gear is jammed, the transmission shaft can drive the first friction wheel and the second friction wheel to rotate relative to the transmission gear. The transmission relationship between the transmission shaft and the transmission gear is disconnected, avoiding damage to the transmission shaft or the structure driving the transmission shaft to rotate due to the transmission gear jamming. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the transmission structure;

[0013] Figure 2 This is a cross-sectional schematic diagram of the transmission structure;

[0014] Figure 3 This is a schematic diagram of the transmission structure used in a ring saw device.

[0015] In the diagram: 1. Drive shaft, 2. First friction wheel, 3. Second friction wheel, 4. Drive gear, 5. Top support, 6. Limiting ring, 7. Power receiving part, 8. Mounting bearing. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0017] like Figures 1-3 As shown, an anti-lock ring saw gear transmission structure includes a drive shaft 1, a first friction wheel 2, a second friction wheel 3, and a transmission gear 4. The drive shaft 1 is connected to the first friction wheel 2 and the second friction wheel 3. Rotation of the drive shaft 1 drives the first friction wheel 2 and the second friction wheel 3 to rotate. An installation gap is provided on the drive shaft 1 between the first friction wheel 2 and the second friction wheel 3. The installation gap is the gap between the first friction wheel 2 and the second friction wheel 3 on the outside of the drive shaft 1. The transmission gear 4 is disposed within the installation gap. The two end faces of the transmission gear 4 abut against the first friction wheel 2 and the second friction wheel 3 respectively. The first friction wheel 2 and the second friction wheel 3 cooperate to clamp the transmission gear 4. When the drive shaft 1 drives the first friction wheel 2 and the second friction wheel 3 to rotate, the first friction wheel 2 and the second friction wheel 3 cooperate to drive the transmission gear 4 to rotate.

[0018] In the gear transmission structure of this embodiment, the first friction wheel 2 and the second friction wheel 3 cooperate to clamp and install the transmission gear 4. The transmission shaft 1 drives the transmission gear 4 to rotate by rotating the first friction wheel 2 and the second friction wheel 3. The transmission gear 4 is not rigidly connected to the first friction wheel 2 and the second friction wheel 3. During the rotation of the transmission shaft 1, when the transmission gear 4 is jammed due to excessive load, the friction effect between the first friction wheel 2 and the second friction wheel 3 and the transmission gear 4 is insufficient to allow the first friction wheel 2 and the second friction wheel 3 to continue driving the transmission gear 4 to rotate. At this time, the transmission gear 4 is jammed, but the first friction wheel 2 and the second friction wheel 3 can rotate relative to the transmission gear 4, avoiding seizure and damage to the transmission shaft 1 and the components that drive the transmission shaft 1 to rotate.

[0019] Please see Figure 3 In this embodiment, when the gear transmission structure is used in a ring saw device, the transmission gear 4 meshes with the inner end face of the ring saw blade. The motor of the ring saw device drives the transmission shaft 1 to rotate, thereby driving the transmission gear 4 and the ring saw blade to rotate. When the ring saw blade stops due to excessive load caused by contact with hard objects, the transmission gear 4 is jammed because the ring saw blade and the transmission gear 4 are meshed and the ring saw blade stops rotating. The motor then only drives the transmission shaft 1, the first friction wheel 2, and the second friction wheel 3 to rotate.

[0020] For details, please refer to Figure 1 and Figure 2A top support 5 is provided on the drive shaft 1. A second mounting hole is provided at the center of the second friction wheel 3, and the second friction wheel 3 is fitted onto the drive shaft 1 through the second mounting hole. A threaded hole is provided at the end of the drive shaft 1, and the threaded hole is arranged along the axial direction of the drive shaft 1. A first mounting hole is provided at the center of the first friction wheel 2, and a threaded connector (not shown in the figure) passes through the first mounting hole. The threaded connector is a screw, a bolt with a stop head, or a similar product. The first friction wheel 2 is located at the end of the drive shaft 1, and the threaded connector connects to the threaded connection hole and installs the first friction wheel 2 at the end of the drive shaft 1. After the second friction wheel 3 is fitted onto the drive shaft 1, the transmission gear 4 is fitted onto the drive shaft 1, and then the first friction wheel 2 is installed onto the end of the drive shaft 1. The first friction wheel 2 presses the transmission gear 4 onto the second friction wheel 3 along the axial direction of the drive shaft 1, and the second friction wheel 3 abuts against the top support 5.

[0021] Furthermore, the gear transmission structure also includes a limiting ring 6, which is an integral part of the first friction wheel 2. When the first friction wheel 2 is installed at the end of the transmission shaft 1, the limiting ring 6 is fitted onto the transmission shaft 1 and located within the installation gap. When the transmission gear 4 is positioned within the installation gap, the transmission gear 4 is fitted onto the outside of the limiting ring 6. The fitting of the limiting ring 6 onto the transmission shaft 1 and the fitting of the transmission gear 4 onto the limiting ring 6 facilitates the quick installation of the transmission gear 4 into a coaxial position with the transmission shaft 1, reducing the difficulty of installation and debugging.

[0022] The drive shaft 1 is also provided with a power receiving part 7, which can be a bevel gear or other type of gear, or a synchronous pulley or other type of structure suitable for transmission connection with the power output shaft of the motor. The drive shaft 1 is also provided with a mounting bearing 8, which facilitates the rotatable connection between the drive shaft 1 and the housing structure or frame structure of the ring saw device.

[0023] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gear transmission structure for an anti-locking ring saw, characterized in that: It includes a drive shaft (1), a first friction wheel (2), a second friction wheel (3), and a drive gear (4). The drive shaft (1) is connected to the first friction wheel (2) and the second friction wheel (3) and drives the first friction wheel (2) and the second friction wheel (3) to rotate. An installation gap is provided on the drive shaft (1) between the first friction wheel (2) and the second friction wheel (3). The drive gear (4) is provided in the installation gap. The two end faces of the drive gear (4) abut against the first friction wheel (2) and the second friction wheel (3) respectively, and the drive gear (4) is driven to rotate by the first friction wheel (2) and the second friction wheel (3).

2. The anti-lock ring saw gear transmission structure according to claim 1, characterized in that: The drive shaft (1) has a threaded hole at its end. The first friction wheel (2) has a first mounting hole and a threaded connector is provided in the first mounting hole. The first friction wheel (2) is located at the end of the drive shaft (1) and the threaded connector is connected to the threaded hole. The drive shaft (1) has a top support (5) and the second friction wheel (3) has a second mounting hole. The second friction wheel (3) is fitted onto the drive shaft (1) and abuts against the top support (5).

3. The anti-lock ring saw gear transmission structure according to claim 2, characterized in that: It also includes a limiting ring (6), which is fitted on the drive shaft (1) and within the installation gap. The limiting ring (6) and the first friction wheel (2) are an integral structure, and the transmission gear (4) is fitted on the outside of the limiting ring (6).

4. The anti-lock ring saw gear transmission structure according to claim 2, characterized in that: A power receiving unit (7) is provided on the drive shaft (1).

5. The anti-lock ring saw gear transmission structure according to claim 4, characterized in that: The power receiving unit (7) is a bevel gear.

6. The anti-lock ring saw gear transmission structure according to claim 2, characterized in that: A mounting bearing (8) is provided on the drive shaft (1).

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