Transmission pinion

Abstract

The utility model discloses a pinion for transmission, which comprises a driving transmission gear, a driven transmission gear, intermittent pipe supporting teeth and a tension spring, the driven transmission gear is positioned at the bottom of the driving transmission gear, the driven transmission gear is meshed with the driving transmission gear, one side of the driving transmission gear is provided with an intermittent groove, and the intermittent pipe supporting teeth are arranged in the intermittent groove. Intermittent pipe supporting teeth corresponding to the driving transmission gear and the driven transmission gear are arranged in the intermittent groove, a bearing is arranged on one side of the circle center of the driving transmission gear, and the end of an inner shaft sleeve of the bearing is connected with the driving transmission gear in a welded mode. According to the technical scheme, the driving transmission gear cannot rotate due to the rotation inertia of the driving transmission gear, so that the precision of intermittent transmission is ensured, and the problem that the existing intermittent transmission driven transmission gear can rotate due to the rotation inertia of the driving transmission gear due to the absence of a positioning part for a driven transmission gear connecting pipe under the condition that the meshing transmission force is lost is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pinion gears, in particular to a transmission pinion gear. Background Art

[0002] Pinions are common transmission components in mechanical devices, and there is a special type of gear structure among pinions, namely intermittent gears, which are usually used to control parameters such as position, speed and time of mechanical parts; for example, in automated production lines, intermittent gears can be used to control the movement of robotic arms, thereby achieving precise grasping and placement of workpieces; in automobile engines, intermittent gears can be used to control the opening and closing time of valves, thereby achieving precise control of the engine.

[0003] Existing intermittent transmission pinions are usually achieved by removing the required number of teeth from the driving gear at the intermittent stage, so that the driven gear stops meshing with the driving gear when it faces a position without teeth. However, in use, we have found that although the driven gear loses the meshing power in the toothless position section, it will continue to rotate for a short period of time due to the inertia of the driven gear itself, resulting in the accuracy of the intermittent transmission being affected.

[0004] The existing intermittent transmission pinion has the following disadvantages: when the existing intermittent transmission driven gear loses the meshing transmission force, it will also rotate due to its own rotational inertia because there is no positioning component to take over the driven transmission gear. Therefore, we propose a transmission pinion. Utility Model Content

[0005] The main purpose of the utility model is to provide a transmission pinion which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A transmission pinion gear comprises a driving transmission gear, a driven transmission gear and intermittent tube teeth, and also comprises a tension spring. The driven transmission gear is located at the bottom of the driving transmission gear, the driven transmission gear is meshed and connected with the driving transmission gear, an intermittent groove is provided on one side of the driving transmission gear, and intermittent tube teeth corresponding to the driving transmission gear and the driven transmission gear are arranged in the intermittent groove. A bearing is provided on one side of the center of the driving transmission gear, and the inner sleeve end of the bearing is welded and connected to the driving transmission gear.

[0008] Furthermore, a first flange ring is welded to the periphery of the outer sleeve of the bearing, and a second flange ring is provided integrally therewith at the top of the intermittent tube teeth.

[0009] Furthermore, the first flange ring of the bearing and the second flange ring of the intermittent tube teeth are connected by bolts.

[0010] Furthermore, a pull column is welded to the active transmission gear on one side away from the intermittent groove and on one side of the intermittent tube teeth, and two ends of the tension spring are respectively connected to the pull column sleeves on the active transmission gear and the intermittent tube teeth.

[0011] Compared with the prior art, the utility model has the following beneficial effects: a set of transmission pinion gear structures capable of realizing intermittent transmission operation is formed by a driving transmission gear, a driven transmission gear, an intermittent tube tooth and a tension spring; through the cooperation of the intermittent tube tooth and the tension spring, when the intermittent groove section of the driving transmission gear rotates to the meshing position of the driven transmission gear, the driven transmission gear is meshed with the intermittent tube tooth with spring tension, so that the driving transmission gear will not rotate due to its own rotational inertia, thereby ensuring the accuracy of the intermittent transmission, and solving the problem that the driven transmission gear of the existing intermittent transmission will rotate due to its own rotational inertia when the meshing transmission force is lost because there is no positioning component to take over the driven transmission gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a schematic diagram of the overall structure of a transmission pinion.

[0013] Figure 2 The utility model is a schematic diagram of the active transmission gear structure of a transmission pinion.

[0014] Figure 3 The utility model is a schematic diagram of the intermittent tube tooth structure of a transmission pinion.

[0015] In the figure: 1, driving transmission gear; 2, driven transmission gear; 3, intermittent tube teeth; 4, bearing; 5, first flange ring; 7, second flange ring; 8, pull column; 9, tension spring; 10, intermittent groove. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0017] like Figure 1-3As shown, a transmission pinion comprises a driving transmission gear 1, a driven transmission gear 2 and an intermittent tube tooth 3, and also comprises a tension spring 9. The driven transmission gear 2 is located at the bottom of the driving transmission gear 1, and the driven transmission gear 2 is meshed with the driving transmission gear 1. An intermittent groove 10 is provided on one side of the driving transmission gear 1, and intermittent tube teeth 3 corresponding to the driving transmission gear 1 and the driven transmission gear 2 are arranged in the intermittent groove 10. A bearing 4 is provided on one side of the center of the driving transmission gear 1, and the inner sleeve end of the bearing 4 is welded to the driving transmission gear 1. A first flange ring 5 is welded to the outer periphery of the outer sleeve of the bearing 4, and a second flange ring 7 is provided on the top of the intermittent tube tooth 3, and the first flange ring 5 of the bearing 4 is connected to the second flange ring 7 of the intermittent tube tooth 3 by bolts. A pull column 8 is welded to the side of the driving transmission gear 1 away from the intermittent groove 10 and the side of the intermittent tube tooth 3, and the two ends of the tension spring 9 are respectively sleeved and connected to the pull column 8 on the driving transmission gear 1 and the intermittent tube tooth 3.

[0018] It should be noted that the utility model is a transmission pinion. When working, the personnel install and connect the center of the active transmission gear 1 with the driving shaft equipped at the site through a key pin, and connect the rotating shaft of the driven transmission gear 2 with the mechanism that needs to intermittently perform actions. During the rotation of the active transmission gear 1, the meshing driven transmission gear 2 will be synchronously driven. When the intermittent groove 10 of the active transmission gear 1 rotates to the driven transmission gear 2, the driven transmission gear 2 will lose the rotational power, and at the same time, the intermittent hosting teeth 3 take over the meshing support of the active transmission gear 1 to the driven transmission gear 2. Based on the setting of the bearing 4, the intermittent hosting teeth 3 will not drive the driven transmission gear 2 to rotate, so that the driven transmission gear 2 remains stopped. After the intermittent groove 10 of the active transmission gear 1 rotates past, the active transmission gear 1 resumes the meshing transmission to the driven transmission gear 2, which is flexible and convenient to use.

[0019] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A transmission pinion, comprising a driving transmission gear (1), a driven transmission gear (2) and intermittent tube teeth (3), characterized in that: It also includes a tension spring (9), the driven transmission gear (2) is located at the bottom of the driving transmission gear (1), the driven transmission gear (2) is meshed with the driving transmission gear (1), an intermittent groove (10) is provided on one side of the driving transmission gear (1), and intermittent tube teeth (3) corresponding to the driving transmission gear (1) and the driven transmission gear (2) are arranged in the intermittent groove (10), a bearing (4) is arranged on one side of the center of the driving transmission gear (1), and the inner sleeve end of the bearing (4) is welded to the driving transmission gear (1).

2. A transmission pinion according to claim 1, characterized in that: A first flange ring (5) is welded to the periphery of the outer sleeve of the bearing (4), and a second flange ring (7) is provided on the top of the intermittent tube tooth (3) so as to be integrated therewith.

3. A transmission pinion according to claim 2, characterized in that: The first flange ring (5) of the bearing (4) and the second flange ring (7) of the intermittent tube tooth (3) are connected by bolts.

4. A transmission pinion according to claim 1, characterized in that: The active transmission gear (1) is welded with a pull column (8) on one side away from the intermittent groove (10) and on one side of the intermittent tube teeth (3), and the two ends of the tension spring (9) are respectively sleeved and connected to the pull column (8) on the active transmission gear (1) and the intermittent tube teeth (3).

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