Efficient noise reduction gear transmission device
By introducing a sealing cap, sound insulation layer, and lubrication mechanism into the gear transmission device, and utilizing motor drive and a set of leakage holes to achieve efficient addition of lubricating oil, the problem of cumbersome lubricating oil addition in the prior art is solved, and the lubrication effect and noise reduction performance are improved.
Patent Information
- Application Number
- CN202520208611.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Existing gear transmission devices are compact and fully enclosed, making the process of adding lubricating oil cumbersome, resulting in poor lubrication, increased friction, and increased noise.
The design incorporates a housing with a sealing cap, sound insulation layer, and lubrication mechanism. The gears are driven by a motor, and the lubricating oil is precisely injected through connecting pipes and a set of drain holes. Nickel-plated gears are used to improve lubrication and noise reduction.
It enables rapid and accurate addition of lubricating oil, reduces gear friction noise, improves ease of use and sound insulation, and enhances the noise reduction performance of the device.
Smart Images

Figure CN223825547U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to gear drive device technical field especially relates to a kind of efficient noise reduction gear drive device. BACKGROUND
[0002] Gear drive device is a kind of mechanical transmission mode, motion and power are transmitted by intermeshing gear, gear drive device is composed of two or more gears, when one of the gears is rotated by external force, another gear will be with the same rotational speed but opposite direction movement, to drive machine equipment operation, when gear drive device is put into use, it can be due to excessive internal friction, or vibration noise is generated, thus it needs to be noise reduction treatment;
[0003] Common gear drive device structure is relatively compact and shell is fully enclosed, each time adding lubricating oil needs to open shell, operation step is very tedious, and efficiency is low, and lubricating oil is not added to the position of the meshing of two gears, to cause the reduction of lubrication effect, cause the friction between gears to increase, to further cause noise to improve, therefore, we propose a kind of efficient noise reduction gear drive device. SUMMARY
[0004] The utility model discloses a kind of efficient noise reduction gear drive devices, to solve the problems of prior art, common gear drive device structure is relatively compact and shell is fully enclosed, each time adding lubricating oil needs to open shell, operation step is very tedious, and efficiency is low, and lubricating oil is not added to the position of the meshing of two gears, to cause the reduction of lubrication effect, cause the friction between gears to increase, to further cause noise to improve.
[0005] To achieve the above object, the utility model adopts the following technical scheme:
[0006] A kind of efficient noise reduction gear drive device, including shell, lubricating mechanism is installed in the inside of the shell;
[0007] Sealing cover is fixedly installed at the top of the shell, liquid inlet is formed at the top of the sealing cover near left side, sound insulation layer is installed in the inside of the shell near periphery and the inside of the sealing cover near periphery;
[0008] The lubricating mechanism includes support rod, the support rod is installed in the inside of shell by bolt, connecting pipeline is installed at the top of the support rod near left side, drive gear is rotatably connected to the end of the support rod near right side, driven gear is rotatably connected to the end of the support rod near top, passage is formed in the inside of the support rod.
[0009] As a preferred embodiment of this utility model, a motor with its output end facing left is installed on the right side of the housing. The output end of the motor extends into the interior of the housing and is fixedly connected to the drive gear. The drive gear meshes with the driven gear, and a connecting shaft is welded to the top of the driven gear through the top of the sealing cover.
[0010] The technical effect of adopting the above-mentioned further solution is that the rotation of the motor can drive the drive gear to rotate, and the drive gear drives the connecting shaft to rotate through the driven gear, thereby providing power to the external equipment connected to the connecting shaft.
[0011] As a preferred embodiment of this utility model, the top of the shell is close to the periphery, and a sealing strip is adhered to the contact point with the sealing cover.
[0012] The technical effect of adopting the above-mentioned further solution is that the sealing strip can improve the sealing effect between the sealing cover and the shell, and improve the sound insulation effect.
[0013] As a preferred embodiment of this utility model, the sound insulation layer is made of polyurethane foam with a thickness of 5mm.
[0014] The technical effects of adopting the above-mentioned further solutions are: polyurethane foam is environmentally friendly and lightweight, with good sound insulation, moisture and water resistance and flame retardancy. The sound insulation layer can improve the sound insulation effect of the shell and the sealing cover, and further improve the noise reduction performance.
[0015] As a preferred embodiment of this utility model, a support base is installed at the inner bottom of the housing and around the support rod, and an anti-slip pad is adhered to the inner side of the support base where it fits against the support rod.
[0016] The technical effect of adopting the above-mentioned further solution is that the support base can support the support rod, prevent the support rod from becoming loose, make the injection of lubricating oil smoother, and improve the stability of use.
[0017] As a preferred embodiment of this utility model, the connecting pipe is made of metal flexible hose, and its end near the top is connected to the injection port by a nut, and a sealing ring is bonded at the contact point between the connecting pipe and the injection port.
[0018] The technical advantage of adopting the above-mentioned further solution is that by connecting the connecting pipe to the injection port with a nut, it is convenient to disassemble and install the connecting pipe, thereby preventing the connecting pipe from obstructing the opening of the sealing cap and improving the ease of use.
[0019] As a preferred embodiment of this utility model, both the driving gear and the driven gear have grooves inside, and each groove has a set of perforated holes at the bottom.
[0020] The technical effect of adopting the above-mentioned further solution is that after the lubricating oil flows into the groove through the injection port, the connecting pipe and channel, it can flow into the tooth groove through the leakage hole group, thereby improving the lubrication effect, reducing the friction between the drive gear and the driven gear, and thus improving the noise reduction effect.
[0021] As a preferred embodiment of this utility model, both the driving gear and the driven gear are nickel-plated.
[0022] The technical effect of adopting the above-mentioned further solution is that nickel plating can improve the surface hardness of the drive gear and the driven gear, and at the same time improve the wear resistance, reduce the wear between the drive gear and the driven gear, and thus reduce the generation of noise.
[0023] Compared with the prior art, the beneficial effects of this utility model are:
[0024] In this invention, the design of the housing and lubrication mechanism, along with the use of a sealing cap and a sound insulation layer, improves the sound insulation effect of the housing. The combination of the connecting rod, groove, and leakage hole group allows for quick and accurate injection of lubricating oil into each tooth groove, thereby improving the lubrication effect and greatly reducing noise generation. Furthermore, the sealing cap can be removed without adding lubricating oil, effectively improving ease of use and operational efficiency. Attached Figure Description
[0025] Figure 1 A schematic diagram of the overall structure of a high-efficiency noise-reducing gear transmission device provided by this utility model;
[0026] Figure 2 A front anatomical view of the overall housing structure of a high-efficiency noise-reducing gear transmission device provided by this utility model;
[0027] Figure 3 A frontal anatomical view of the lubrication mechanism of a high-efficiency noise-reducing gear transmission device provided by this utility model;
[0028] Figure 4 This is an enlarged schematic diagram of structure A of a high-efficiency noise-reducing gear transmission device provided by this utility model.
[0029] Legend: 1. Housing; 101. Sealing cap; 102. Injection port; 103. Sound insulation layer; 104. Motor; 105. Support base; 2. Lubrication mechanism; 201. Support rod; 202. Connecting pipe; 203. Drive gear; 204. Driven gear; 2041. Connecting shaft; 205. Channel; 206. Groove; 207. Leakage hole group. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0031] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.
[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0034] Example 1
[0035] like Figures 1-4 As shown, this utility model provides a technical solution: a high-efficiency noise-reducing gear transmission device, including a housing 1, a lubrication mechanism 2 installed inside the housing 1, a sealing cover 101 fixedly installed at the top of the housing 1, an injection port 102 opened at the top of the sealing cover 101 near the left side, sound insulation layers 103 installed inside the housing 1 near the outer periphery and inside the sealing cover 101 near the outer periphery, the lubrication mechanism 2 includes a support rod 201, the support rod 201 is installed inside the housing 1 by bolts, a connecting pipe 202 is installed at the top of the support rod 201 near the left side, a drive gear 203 is rotatably connected to the right end of the support rod 201, a driven gear 204 is rotatably connected to the top end of the support rod 201, and a channel 205 is opened inside the support rod 201.
[0036] Example 2
[0037] likeFigures 1-4 As shown, a motor 104 with its output end facing left is installed on the right side of the housing 1. The output end of the motor 104 extends into the interior of the housing 1 and is fixedly connected to the drive gear 203. The drive gear 203 meshes with the driven gear 204. A connecting shaft 2041 is welded to the top of the driven gear 204, penetrating the top of the sealing cover 101. The rotation of the motor 104 drives the drive gear 203 to rotate, which in turn drives the connecting shaft 2041 to rotate via the driven gear 204, providing power to the external equipment connected to the connecting shaft 2041. The top of the housing 1 is close to the periphery and is connected to the sealing cover 101. A sealing strip is adhered to the contact point of the cover 101. The sealing strip improves the sealing effect between the cover 101 and the housing 1, thus enhancing the sound insulation effect. The sound insulation layer 103 is made of polyurethane foam with a thickness of 5mm. The sound insulation layer 103 further enhances the sound insulation effect between the housing 1 and the cover 101, thereby improving the noise reduction performance. A support base 105 is installed on the inner bottom of the housing 1, located around the support rod 201. An anti-slip pad is adhered to the inner side of the support base 105 where it contacts the support rod 201. The support base 105 supports the support rod 201 and prevents it from becoming loose. The movement ensures smoother lubricant injection and improves operational stability. The connecting pipe 202 is made of a metal hose, with one end near the top connected to the injection port 102 via a nut. A sealing ring is bonded at the contact point between the connecting pipe 202 and the injection port 102. The connection between the connecting pipe 202 and the injection port 102 via the nut facilitates the disassembly and installation of the connecting pipe 202, preventing it from obstructing the opening of the sealing cover 101 and improving ease of use. Both the drive gear 203 and the driven gear 204 have grooves 206 inside, and each groove has a set of leakage holes 2 at the bottom. 07. After the lubricating oil flows through the injection port 102, through the connecting pipe 202 and the channel 205 into the groove 206, it can flow into the tooth groove through the leakage hole group 207, thereby improving the lubrication effect, reducing the friction between the drive gear 203 and the driven gear 204, and thus improving the noise reduction effect. Both the drive gear 203 and the driven gear 204 are nickel-plated. Nickel plating can improve the surface hardness of the drive gear 203 and the driven gear 204, and at the same time improve the wear resistance, reduce the wear between the drive gear 203 and the driven gear 204, and thus reduce the generation of noise.
[0038] The working process of this utility model is as follows: When adding lubricating oil to a high-efficiency noise-reducing gear transmission device, the lubricating oil is first pushed into the injection port 102 using an external syringe. Under pressure, the lubricating oil flows through the connecting pipe 202, through the channel 205, and into the groove 206. Then, the lubricating oil flows precisely into each tooth groove of the drive gear 203 and the driven gear 204 through the leakage hole group 207, completing the precise addition of lubricating oil. This improves the lubrication effect, reduces the friction between the drive gear 203 and the driven gear 204, and achieves the purpose of improving the noise reduction effect. Compared with the traditional filling method, there is no need to open the sealing cap 101, which effectively improves the convenience of use and the operating efficiency. In addition, the sealing cap 101 and the sound insulation layer 103 can improve the sound insulation effect of the housing 1, thereby achieving the purpose of high-efficiency noise reduction.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency noise-reducing gear transmission device, comprising a housing (1), characterized in that: A lubrication mechanism (2) is installed inside the housing (1); A sealing cap (101) is fixedly installed at the top of the housing (1). An injection port (102) is opened at the top of the sealing cap (101) near the left side. A sound insulation layer (103) is installed inside the housing (1) near the outer periphery and inside the sealing cap (101) near the outer periphery. The lubrication mechanism (2) includes a support rod (201), which is bolted to the inside of the housing (1). A connecting pipe (202) is installed at the top of the support rod (201) near the left side. A drive gear (203) is rotatably connected to the right end of the support rod (201). A driven gear (204) is rotatably connected to the top end of the support rod (201). A channel (205) is opened inside the support rod (201).
2. The high-efficiency noise-reducing gear transmission device according to claim 1, characterized in that: A motor (104) with its output end facing left is installed on the right side of the housing (1). The output end of the motor (104) extends into the interior of the housing (1) and is fixedly connected to the drive gear (203). The drive gear (203) meshes with the driven gear (204). The top of the driven gear (204) passes through the top of the sealing cover (101) and is welded with a connecting shaft (2041).
3. The high-efficiency noise-reducing gear transmission device according to claim 1, characterized in that: The top of the housing (1) is close to the periphery, and a sealing strip is adhered to the contact point with the sealing cover (101).
4. The high-efficiency noise-reducing gear transmission device according to claim 1, characterized in that: The sound insulation layer (103) is made of polyurethane foam and has a thickness of 5mm.
5. The high-efficiency noise-reducing gear transmission device according to claim 1, characterized in that: A support base (105) is installed at the inner bottom of the housing (1) and around the support rod (201). An anti-slip pad is adhered to the inner side of the support base (105) where it fits against the support rod (201).
6. The high-efficiency noise-reducing gear transmission device according to claim 1, characterized in that: The connecting pipe (202) is made of metal hose, and its end near the top is connected to the injection port (102) by a nut. A sealing ring is bonded at the contact point between the connecting pipe (202) and the injection port (102).
7. The high-efficiency noise-reducing gear transmission device according to claim 1, characterized in that: Both the drive gear (203) and the driven gear (204) have grooves (206) inside, and each groove has a set of perforated holes (207) at the bottom.
8. The high-efficiency noise-reducing gear transmission device according to claim 1, characterized in that: Both the drive gear (203) and the driven gear (204) are nickel-plated.