Low-noise gear
By introducing an adjustment mechanism into the gears to adjust the meshing gap, the noise and damage problems during high-speed gear meshing are solved, achieving low noise and stable transmission.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-03-03
AI Technical Summary
Existing high-speed gears generate noise and damage during meshing, and the meshing position cannot be adjusted to reduce collisions.
A low-noise gear was designed, comprising a gear body and an adjustment mechanism. Through components such as an adjustment plate, adjustment groove, moving rod, connecting ring, and push rod, the meshing gap between the gear and the workpiece is adjusted to achieve stability and noise reduction.
It effectively reduces noise when gears mesh with workpieces, improves rotational stability, and has a simple structure and is easy to operate.
Smart Images

Figure CN223964840U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of gear technology, and more specifically, it relates to a low-noise gear. Background Technology
[0002] Gears are mechanical components with teeth on their rims that can continuously mesh to transmit motion and power. Gear drives are characterized by smooth transmission, precise transmission ratio, reliable operation, high efficiency, long service life, and a wide range of applicable power, speed, and size.
[0003] Based on the above, the inventors have discovered the following problems: Existing high-speed gears typically include metal gears. When the metal gears mesh, they need to work together with other workpieces. The meshing position between the workpiece and the gear is the key position that generates collision noise. Since the structure of the gear is fixed, the meshing point cannot be adjusted accordingly. When the gear rotates, a collision will occur, which will not only generate a lot of noise, but also damage the gear.
[0004] Therefore, in view of this, we will study and improve the existing structure and its shortcomings to provide a low-noise gear, in order to achieve a more practical purpose. Utility Model Content
[0005] To address the aforementioned technical problems, this invention provides a low-noise gear to solve the issues in the current background technology.
[0006] The purpose and effect of this low-noise gear are achieved by the following specific technical means:
[0007] A low-noise gear includes a gear body and an adjustment mechanism. The gear body has a central insertion hole and several locking teeth on its exterior. The gear body also has a mounting groove at its central center. The adjustment mechanism includes a push rod, and a rotating shaft is mounted inside the mounting groove. An adjustment plate is located outside the rotating shaft, and several adjustment grooves are evenly spaced inside the adjustment plate. An adjustment rod is located on one side of each adjustment groove, with its bottom end penetrating the groove and connected to a moving rod. A fixed rod is mounted on the bottom of the mounting groove near the moving rod, and the fixed rod has a sliding groove inside. The moving rod is slidably mounted inside the sliding groove, and one end of the moving rod is connected to a connecting ring. A push rod is mounted on the outside of the connecting ring and is trapezoidal in shape.
[0008] Furthermore, the gear body has several first moving slots equidistantly arranged on one side of the mounting slot, and the push rod is slidably installed inside the first moving slot.
[0009] Furthermore, each of the aforementioned teeth has a groove inside, and an adjusting block is slidably installed on both sides of the groove. The tooth has a first through hole on the side near the push rod, and the first through hole is connected to the first moving groove.
[0010] Furthermore, a pair of limiting grooves are provided on one side of the inner side of the tooth, and a spring is connected to one side of the inner side of the limiting groove. One end of the spring is connected to a limiting block, and the limiting block is connected to one side of the adjusting block.
[0011] Furthermore, a pull rod is connected to the top side of the adjusting plate, and a second moving groove is provided on the top side of the gear body. The top of the pull rod passes through the first moving groove and extends to the outside, and a connecting block is connected to the top side of the pull rod.
[0012] Furthermore, a fixing plate is installed on the top of the gear body on one side of the second moving groove, and the fixing plate has several second through holes inside. A pin is inserted into the inside of the connecting block, and the pin engages with the second through holes.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] This low-noise gear, through the coordinated use of an adjusting plate, adjusting groove, moving rod, connecting ring, push rod, adjusting block, limiting groove, pull rod, second moving groove, and second through hole, allows for proper gear installation. After installation, check the meshing of the gear with the remaining workpieces. If some meshing gaps are large, remove the pin, pull the pull rod to move it within the second moving groove, causing the adjusting plate to rotate and the adjusting groove to move. The protruding side of the adjusting groove pushes the adjusting rod and moving rod, causing the moving rod to move outward within the fixed rod, which in turn moves the connecting ring, thus pushing the push rod within the first moving groove. Inside the slot, a pair of adjusting blocks are pressed, causing them to move outward. As the adjusting blocks move, a limiting block moves within a limiting groove, supporting the movement of the adjusting blocks. When the adjusting blocks are in contact with another workpiece, a pin is inserted into the second through hole to fix the position of the pull rod and adjusting plate. The push rod supports the pair of adjusting blocks, facilitating the stability of the gear body during rotation and reducing noise generated during rotation. This utility model has a simple and reasonable structure, novel design, and simple and convenient operation. It effectively reduces the gap generated when the gear meshes with the workpiece, avoids generating significant noise, and has high practical value. Attached Figure Description
[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention.
[0016] Figure 2This is a three-dimensional schematic diagram of the adjustment plate of this utility model.
[0017] Figure 3 This is a top sectional view of the present invention.
[0018] Figure 4 This is the utility model Figure 3 An enlarged schematic diagram of the structure at point A in the middle.
[0019] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0020] 1001, Gear body; 1002, Insertion hole; 1003, Gear teeth; 1004, Mounting groove; 2001, Adjusting plate; 2002, Adjusting groove; 2003, Adjusting rod; 2004, Moving rod; 2005, Fixing rod; 2006, Connecting ring; 2007, Rotating shaft; 2008, First moving groove; 2009, Push rod; 2010, Groove; 2011, Adjusting block; 2012, First through hole; 2013, Limiting groove; 2014, Limiting block; 2015, Pull rod; 2016, Second moving groove; 2017, Fixing plate; 2018, Connecting block; 2019, Second through hole. Detailed Implementation
[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0022] Example:
[0023] As attached Figure 1 To be continued Figure 4 As shown:
[0024] This utility model provides a low-noise gear, including a gear body 1001 and an adjustment mechanism. The gear body 1001 has an insertion hole 1002 at its center, and several retaining teeth 1003 on its exterior. A mounting groove 1004 is also provided at the center of the gear body 1001. The adjustment mechanism includes a push rod 2009, and a rotating shaft 2007 is mounted inside the mounting groove 1004. An adjustment plate 2001 is provided outside the rotating shaft 2007, and several adjustment grooves 2002 are evenly spaced inside the adjustment plate 2001. An adjusting rod 2003 is provided on one side of the inner side of the adjusting groove 2002, and the bottom end of the adjusting rod 2003 passes through the adjusting groove 2002 and is connected to a moving rod 2004. A fixed rod 2005 is installed on the bottom of the mounting groove 1004 near the moving rod 2004, and a sliding groove is provided inside the fixed rod 2005. The moving rod 2004 is slidably installed inside the sliding groove, and one end of the moving rod 2004 is connected to a connecting ring 2006. A push rod 2009 is installed on the outer side of the connecting ring 2006, and the shape of the push rod 2009 is trapezoidal.
[0025] The gear body 1001 has several first moving slots 2008 evenly spaced on one side of the mounting slot 1004, and the push rod 2009 is slidably installed inside the first moving slots 2008.
[0026] Among them, the interior of several locking teeth 1003 is provided with grooves 2010, and adjustment blocks 2011 are slidably installed on both sides of the interior of the grooves 2010. The interior of the locking teeth 1003 is provided with a first through hole 2012 on the side near the push rod 2009, and the first through hole 2012 is connected to the first moving groove 2008.
[0027] The tooth 1003 has a pair of limiting grooves 2013 on one side inside, and a spring is connected to one side inside the limiting groove 2013. One end of the spring is connected to a limiting block 2014, and the limiting block 2014 is connected to one side of the adjusting block 2011.
[0028] The top side of the adjusting plate 2001 is connected to a pull rod 2015, and the top side of the gear body 1001 is provided with a second moving groove 2016. The top of the pull rod 2015 passes through the first moving groove 2008 and extends to the outside. The top side of the pull rod 2015 is connected to a connecting block 2018.
[0029] The gear body 1001 has a fixing plate 2017 installed on one side of the second moving groove 2016. The fixing plate 2017 has several second through holes 2019 inside. The connecting block 2018 has a pin inserted inside, and the pin engages with the second through holes 2019.
[0030] The specific usage and function of this embodiment are as follows:
[0031] When using this product, first, check whether the connections are secure. After ensuring they are secure, install the gear. Then, check the meshing of the gear with the remaining workpieces using the retaining teeth 1003. If some meshing gaps are large, remove the pins and pull the pull rod 2015. This will move the pull rod 2015 within the second moving groove 2016, causing the adjusting plate 2001 to rotate and the adjusting groove 2002 to move. The protruding side of the adjusting groove 2002 pushes the adjusting rod 2003 and the moving rod 2004, causing the moving rod 2004 to move outward from inside the fixed rod 2005. This moves the connecting ring 2006, thereby pushing the push rod 200. 09 moves inside the first moving groove 2008, moves to the inside of the slot, and squeezes a pair of adjusting blocks 2011, causing the pair of adjusting blocks 2011 to move outward. When the adjusting blocks 2011 move, the limiting block 2014 moves in the limiting groove 2013 to support the movement of the adjusting blocks 2011. When the adjusting blocks 2011 are in contact with another workpiece, the pin is inserted into the inside of the second through hole 2019 to fix the position of the pull rod 2015 and the adjusting plate 2001. The push rod 2009 supports the pair of adjusting blocks 2011, which facilitates the stability of the gear body 1001 when rotating and reduces the noise generated during rotation.
[0032] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A low noise gear, characterized by: The utility model provides a gear body (1001) and adjusting mechanism, the inside center of gear body (1001) is equipped with the jack (1002), the outside of gear body (1001) is equipped with a plurality of clamping tooth (1003), and the inside center of gear body (1001) is equipped with the installation slot (1004), adjusting mechanism includes push rod (2009), and the inside installation of installation slot (1004) is equipped with the rotating shaft (2007), the outside of rotating shaft (2007) is equipped with adjusting plate (2001), and the inside equal interval of adjusting plate (2001) is equipped with a plurality of adjusting slot (2002), the inside one side of adjusting slot (2002) is equipped with adjusting rod (2003), and the bottom of adjusting rod (2003) penetrates adjusting slot (2002) and is connected with the moving rod (2004), the bottom of installation slot (1004) is installed with fixed rod (2005) on the side close to moving rod (2004), and the inside of fixed rod (2005) is equipped with the sliding slot, the moving rod (2004) slidingly installed in the inside of sliding slot, and one end of moving rod (2004) is connected with connecting ring (2006), the outside one side of connecting ring (2006) is installed with push rod (2009), and the shape of push rod (2009) is trapezoidal.
2. The low noise gear of claim 1, wherein: The inside of gear body (1001) is equipped with a plurality of first moving slots (2008) on the side of installation slot (1004), and the push rod (2009) is slidingly installed in the inside of first moving slot (2008).
3. The low noise gear of claim 1, wherein: The inside of a plurality of clamping tooth (1003) is equipped with recess (2010), and the inside both sides of recess (2010) are slidingly installed with adjusting block (2011), the inside of clamping tooth (1003) is equipped with first through -hole (2012) on the side close to push rod (2009), and first through -hole (2012) and first moving slot (2008) are interconnected.
4. The low noise gear of claim 3, wherein: The inside one side of clamping tooth (1003) is equipped with a pair of limit slot (2013), and the inside one side of limit slot (2013) is connected with spring, one end of spring is connected with limit block (2014), and the limit block (2014) is connected with the one side of adjusting block (2011).
5. The low noise gear of claim 1 wherein: The top one side of adjusting plate (2001) is connected with pull rod (2015), and the top one side of gear body (1001) is equipped with second moving slot (2016), the top of pull rod (2015) penetrates first moving slot (2008) and extends to the outside, and the top one side of pull rod (2015) is connected with connecting block (2018).
6. The low noise gear of claim 5 wherein: The top of gear body (1001) is equipped with fixed plate (2017) on the side of second moving slot (2016), and the inside of fixed plate (2017) is equipped with a plurality of second through -hole (2019), the inside of connecting block (2018) is inserted with bolt, and the bolt and second through -hole (2019) are mutually clamped.