Anti-stuck protection device for mechanical transmission

Abstract

This utility model provides a mechanical transmission anti-jamming protection device, including a drive shaft and a drive gear, as well as a driven shaft and a driven gear. It also includes a disengagement assembly, comprising a spring, a limiting sleeve, and a spline mounted on the drive shaft, used to disengage the drive gear to prevent continuous jamming between the drive and driven gears. This utility model, by setting up a drive shaft, drive gear, driven shaft, driven gear, and disengagement assembly, uses the limiting sleeve in the disengagement assembly to fix the drive gear, preventing it from disengaging from the driven gear due to the spring force during normal transmission. When jamming occurs between the drive and driven gears, the limiting sleeve is turned to remove the resistance force on the drive gear, thereby disengaging the drive and driven gears and preventing continuous jamming that could lead to transmission overload.

Description

Technical Field

[0001] This utility model relates to the field of transmission equipment technology, specifically to an anti-jamming protection device for mechanical transmission. Background Technology

[0002] In mechanical transmission systems (such as gear drives, chain drives, belt drives, etc.), jamming of transmission components is a common and significantly harmful type of failure in industrial production. Its causes are complex and diverse: foreign objects (such as metal shavings, fabric fibers, dust agglomerates, etc.) can directly jam the meshing gap or transmission channel, and long-term wear of parts (such as fatigue spalling of gear teeth, wear and elongation of chain links, and aging and deformation of pulley grooves) will reduce the transmission accuracy, thereby causing periodic jamming.

[0003] In traditional mechanical gear transmission, transmission components often jam due to foreign object entrapment, parts wear, overload operation, and other reasons. When gears mesh, if metal debris such as iron filings from tooth surface wear, hard particles such as sand in the working environment, or fibrous debris such as yarn in a textile workshop enter the tooth gap, it will directly hinder the relative sliding of the tooth surfaces, forming a "rigid lock-up". Jamming can lead to serious consequences such as motor overload and burnout, transmission shaft breakage, and equipment shutdown, which not only increases maintenance costs but may also cause safety accidents.

[0004] The above content is only used to help understand the technical solution of this utility model and does not represent an admission that the above content is the closest prior art. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings and provide an anti-jamming protection device for mechanical transmission.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a mechanical transmission anti-jamming protection device, including a drive shaft and a drive gear, and a driven shaft and a driven gear, and further comprising:

[0007] The disengagement assembly, including a spring, a limiting sleeve, and a spline mounted on the drive shaft, is used to disengage the drive gear to prevent the drive gear and driven gear from becoming stuck.

[0008] Furthermore, a stop block is fixedly provided at the lower end of the spring, and the stop block is fixedly provided on the outer side wall of the drive shaft.

[0009] Furthermore, a threaded shaft is fixedly provided inside the limiting sleeve, and one end of the drive shaft is provided with an internal thread groove that is compatible with the threaded shaft.

[0010] Furthermore, the spline is fixedly mounted on the outer side wall of the drive shaft, and a second stop block is fixedly mounted on the upper end of the spline.

[0011] Furthermore, a stop block three is fixedly provided on one side of the drive gear, and a groove adapted to the spline is opened at the center of the drive gear and the stop block three.

[0012] Furthermore, the other end of the spring abuts against one side of the stop block three, and the bottom end of the limiting sleeve abuts against the opposite side of the drive gear.

[0013] Compared with the prior art, this utility model has the following beneficial effects:

[0014] By setting up a drive shaft, drive gear, driven shaft, driven gear, and disengagement assembly, the drive gear is fixed by a limiting sleeve in the disengagement assembly, so that it will not disengage from the driven gear due to the spring force during normal transmission. When the drive gear and driven gear jam, the driving gear loses its resistance by turning the limiting sleeve, thereby disengaging the drive gear and driven gear, avoiding the phenomenon of transmission overload caused by the continuous jamming of the drive gear and driven gear. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the driving gear and the driven gear in one embodiment of the present invention. Figure 1 ;

[0018] Figure 3 This is a schematic diagram of the structure of the driving gear and the driven gear in one embodiment of the present invention. Figure 2 ;

[0019] Figure 4 This is a schematic diagram of the assembly structure of the drive gear and the disengagement component in one embodiment of the present invention.

[0020] In the diagram: 1. Drive shaft; 101. Drive gear; 1011. Stop block three; 1012. Groove; 102. Internal thread groove; 2. Driven shaft; 201. Driven gear; 3. Disengagement assembly; 301. Spring; 3011. Stop block one; 302. Limiting sleeve; 3021. Threaded shaft; 303. Spline; 3031. Stop block two. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] Please see Figure 1-4 .

[0025] This utility model provides a technical solution for a mechanical transmission anti-jamming protection device: a mechanical transmission anti-jamming protection device includes a drive shaft 1 and a drive gear 101, and a driven shaft 2 and a driven gear 201, and further includes a disengagement component 3 composed of a spring 301, a limiting sleeve 302, and a spline 303 disposed on the drive shaft 1, for disengaging the drive gear 101 to prevent the drive gear 101 and the driven gear 201 from continuously jamming.

[0026] In one embodiment, a stop block 3011 is fixedly provided at the lower end of the spring 301. The stop block 3011 is fixedly provided on the outer side wall of the drive shaft 1. A threaded shaft 3021 is fixedly provided inside the limiting sleeve 302. One end of the drive shaft 1 is provided with an internal thread groove 102 that matches the threaded shaft 3021. A spline 303 is fixedly provided on the outer side wall of the drive shaft 1. A stop block 3031 is fixedly provided at the upper end of the spline 303. A stop block 3011 is fixedly provided on one side of the drive gear 101. A groove 1012 that matches the spline 303 is provided at the center of the drive gear 101 and the stop block 3011. The other end of the spring 301 abuts against one side of the stop block 3011. The bottom end of the limiting sleeve 302 abuts against the opposite side of the drive gear 101.

[0027] This design, through the use of spring 301, limiting sleeve 302, and spline 303, ensures that the driving gear 101 maintains a continuous and stable meshing with the driven gear 201 during normal transmission. In the event of jamming, it can quickly disengage from the driven gear 201, preventing the continuous increase in jamming torque from causing breakage. When the driving gear 101 and driven gear 201 are jammed, rotating the limiting sleeve 302 causes the threaded shaft 3021 inside the limiting sleeve 302 to rotate and unscrew within the internal thread groove 102 of the driving shaft 1. This gradually reduces the resistance of the bottom end of the limiting sleeve 302 against the driving gear 101. As the compression and rebound force of the spring 301 increases, the driving gear 101... 1 will gradually rise and begin to disengage from the driven gear 201. When the limit sleeve 302 is completely removed, the spring 301 at the lower end of the driving gear 101 will also drive the driving gear 101 to disengage from the driven gear 201. The upper end of the driving gear 101 will contact the stop block 2 3031, thereby preventing the driving gear 101 from moving upward. The upper end of the spring 301 will always abut against the stop block 3 1011 at the lower end of the driving gear 101. By setting the spline 303 and the groove 1012 opened on the driving gear 101 and the stop block 3 1011, the driving gear 101 and the stop block 3 1011 can slide on the driving shaft 1 and rotate synchronously when the driving shaft 1 rotates.

[0028] 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 exemplary 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.

Claims

1. A mechanical transmission anti-jamming protection device, comprising a drive shaft (1) and a drive gear (101) and a driven shaft (2) and a driven gear (201), characterized in that, It also includes: The disengagement assembly (3) includes a spring (301), a limiting sleeve (302), and a spline (303) mounted on the drive shaft (1) to disengage the drive gear (101) to prevent the drive gear (101) and the driven gear (201) from becoming stuck.

2. The anti-jamming protection device for mechanical transmission according to claim 1, characterized in that: A stop block (3011) is fixedly provided at the lower end of the spring (301), and the stop block (3011) is fixedly provided on the outer side wall of the drive shaft (1).

3. The anti-jamming protection device for mechanical transmission according to claim 2, characterized in that: The limiting sleeve (302) is fixedly provided with a threaded shaft (3021) inside, and one end of the drive shaft (1) is provided with an internal thread groove (102) that is adapted to the threaded shaft (3021).

4. The anti-jamming protection device for mechanical transmission according to claim 3, characterized in that: The spline (303) is fixedly disposed on the outer side wall of the drive shaft (1), and a stop block (3031) is fixedly disposed on the upper end of the spline (303).

5. The anti-jamming protection device for mechanical transmission according to claim 4, characterized in that: A stop block three (1011) is fixedly provided on one side of the drive gear (101), and a groove (1012) adapted to the spline (303) is opened at the center of the drive gear (101) and the stop block three (1011).

6. The anti-jamming protection device for mechanical transmission according to claim 5, characterized in that: The other end of the spring (301) abuts against one side of the stop block three (1011), and the bottom end of the limiting sleeve (302) abuts against the opposite side of the drive gear (101).

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