Oil injection mechanism of gear reducer

Abstract

The utility model discloses an oil injection mechanism of a gear reducer, which comprises an injection gun body, an oil injection pipe, a driving motor, a screw rod and a spiral pipe cavity, one side of the injection gun body is provided with a grip, and a trigger switch is installed for controlling the starting and stopping of the driving motor. An injection conveying pipe is fixedly installed in the oil injection pipe, a spiral pipe cavity is formed in the inner side of the oil injection pipe, the spiral rod is rotationally installed on the injection gun body, and the periphery of the spiral rod abuts against and is meshed with the inner wall of the spiral pipe cavity to form a sealed conveying channel. The single-screw pump conveying principle is adopted, a plurality of independent sealed conveying cavities are formed in the spiral pipe cavity through eccentric rotation of the spiral rod, stable and continuous lubricating oil conveying is achieved, and compared with a traditional piston pump or straight pipe gravity oil injection mode, the flow uniformity is improved, lubricating oil leakage is reduced, energy consumption is reduced, and the service life of the lubricating oil pump is prolonged. The utility model is suitable for the fields of gear reducers, industrial equipment lubricating systems and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil injection machine technical field, concretely is a gear reducer oil injection mechanism. BACKGROUND

[0002] Gear reducer is widely used in mechanical manufacturing, automation equipment, industrial production line, wind power equipment, mine machinery and so on many fields, and its long-term stable operation relies on efficient lubrication system. The role of lubricating oil is to reduce gear meshing friction, reduce wear, heat dissipation, prolong equipment life. However, in the process of lubricating oil injection of traditional gear reducer, there are still many technical problems, which need to be optimized.

[0003] The lubricating oil conveying in the prior art is unstable, and the flow rate fluctuates greatly:

[0004] At present, the lubricating oil injection mode of gear reducer mainly adopts straight pipe gravity oil injection, piston pump conveying, gear pump conveying and the like:

[0005] Straight pipe gravity oil injection: rely on gravity to inject lubricating oil, but this way is difficult to control oil injection flow, especially in high viscosity lubricating oil or complex pipeline system, it is easy to cause uneven flow or insufficient oil supply.

[0006] Piston pump conveying: lubricating oil is pushed to flow through reciprocating motion, but pulse flow is easy to appear, which leads to unstable flow rate and affects lubrication effect.

[0007] Gear pump conveying: rely on gear rotation to push lubricating oil, but the structure requires high lubricating oil cleanliness, and the conveying efficiency is easy to reduce due to impurities blockage.

[0008] In these traditional conveying modes, flow rate fluctuation, uneven lubricating oil conveying, poor viscosity adaptability and the like still exist, especially in high temperature, high viscosity lubricating oil conveying scene, the efficiency of traditional mode obviously decreases, and it is difficult to meet the demand of precise lubrication.

[0009] Therefore, the existing problems are researched and improved, a gear reducer oil injection mechanism is provided to solve the existing problems, and through the technology, the problems are solved and the practical value is improved. INVENTION CONTENTS

[0010] The utility model aims at solving the technical problems existing in the prior art or related art.

[0011] The gear reducer oil injection mechanism of the utility model mainly comprises the following structural parts:

[0012] The filling gun body is used for supporting and fixing the components, and provides operation stability; the handle is fixed to one side of the filling gun body, and is convenient for operation; the trigger switch is installed on the handle, and is used for controlling the start and stop of the driving motor; the driving motor is installed on the surface of the filling gun body, and provides power driving; the driving gear is connected to the end of the screw rod, and is in transmission engagement with the output end of the driving motor;

[0013] The oil injection pipe is fixedly connected with the filling gun body, and is used for conveying lubricating oil; the oil storage bottle is fixedly installed on the surface of the oil injection pipe, and is used for storing lubricating oil, and is provided with a scale mark, so that the oil amount can be monitored; the injection pipe is fixedly installed on the inner side of the oil injection pipe, and provides a lubricating oil conveying channel; the screw rod is installed in the filling gun body, and is located in the injection pipe, and is in engagement with the spiral pipe cavity, and the conveying of lubricating oil is realized through rotation; the spiral pipe cavity is formed in the inner side of the injection pipe, and forms a sealed conveying cavity matched with the screw rod; the oil injection nozzle is detachably connected to one end of the oil injection pipe, and is convenient for adapting to the oil injection holes of gear reducers with different specifications.

[0014] The driving system is that the driving motor is fixedly installed on the surface of the filling gun body, and is controlled to start and stop through the trigger switch; the output end of the driving motor is connected with the driving gear, and the screw rod is driven to rotate through the gear.

[0015] The lubricating oil conveying structure is that the oil storage bottle stores lubricating oil, and is communicated with the oil injection pipe; the inner side of the oil injection pipe is provided with the injection pipe, and the inner side of the injection pipe is provided with the spiral pipe cavity, and is used for forming a sealed conveying channel; the outer periphery of the screw rod is in close engagement with the inner side of the spiral pipe cavity, and forms a plurality of sealed conveying chambers; when the screw rod rotates, the sealed chambers move in the axial direction, so that the lubricating oil is continuously conveyed to the oil injection nozzle, and finally injected into the gear reducer.

[0016] The sealing and durability optimization is that the inner wall of the spiral pipe cavity is provided with a wear-resistant and corrosion-resistant layer, so that the sealing property is maintained when the screw rod rotates, lubricating oil leakage is prevented, and the conveying efficiency is improved; the screw rod is made of high-strength metal material, and the outer peripheral surface is subjected to chrome plating or fluorocarbon coating treatment, so as to reduce friction loss and improve corrosion resistance; the injection pipe is made of high-wear-resistant elastic rubber material, and can adapt to lubricating oils with different viscosities, and the adaptability is improved.

[0017] The beneficial effects achieved by the utility model are as follows:

[0018] 1. In the utility model, the single screw pump principle is adopted, the screw rod is eccentrically rotated, a plurality of independent sealed conveying chambers are formed in the spiral pipe cavity, the lubricating oil can be uniformly and stably conveyed forward, the problems of unstable lubricating oil flow rate and uneven flow in the traditional oil injection mode are avoided, compared with the traditional piston pump or straight pipe conveying mode, the utility model can reduce lubricating oil backflow loss, improve lubricating oil conveying efficiency, reduce power consumption, and is particularly suitable for stable conveying of high-viscosity lubricating oil.

[0019] 2. The utility model discloses, the spiral tube cavity is closely combined with spiral rod, forms self -sealing effect in the lubricating oil delivery process, ensures that lubricating oil does not occur leakage in the delivery process, improves the use safety. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure schematic diagram of an embodiment of the utility model;

[0021] Figure 2 It is the structure schematic diagram of filling gun body and oil injection pipe of an embodiment of the utility model;

[0022] Figure 3 It is the structure schematic diagram of spiral rod and injection pipe of an embodiment of the utility model;

[0023] Figure 4 It is the internal structure schematic diagram of injection pipe of an embodiment of the utility model.

[0024] Reference Signs:

[0025] 100, filling gun body;110, handle;120, drive motor;111, trigger switch;

[0026] 200, oil injection pipe;201, oil injection nozzle;202, oil storage bottle;210, spiral rod;211, drive gear;220, injection pipe;221, spiral tube cavity. DETAILED DESCRIPTION

[0027] To make the purpose, technical scheme and advantage of the utility model more clear and obvious, below, combining with specific implementation and referring to the drawings, the utility model is further detailedly explained. It is to be explained that in the case of not conflicting, the embodiment of the utility model and the feature in the embodiment can be combined mutually.

[0028] It is understood that these descriptions are only exemplary, and not to limit the scope of the utility model.

[0029] Below, combining with the drawings Figures 1-4 Some embodiments of the utility model are described, and provide a gear reducer oil injection mechanism.

[0030] The utility model provides a gear reducer oil injection mechanism, including filling gun body 100 and oil injection pipe 200, and one side of filling gun body 100 is fixedly installed with handle 110, is used for operator to hold and control oil injection process.

[0031] The surface of the filling gun body 100 is fixedly provided with a driving motor 120, and the surface of the handle 110 is provided with a trigger switch 111 for controlling the start and stop of the driving motor 120 to ensure accurate delivery of lubricating oil. One end of the filling gun body 100 is fixedly connected with the end of the oil injection pipe 200, and the inner side of the oil injection pipe 200 is fixedly provided with an injection pipe 220, and the surface of the filling gun body 100 is rotatably provided with a screw rod 210 located inside the injection pipe 220.

[0032] The inner side of the injection pipe 220 is provided with a spiral cavity 221, and the outer periphery of the screw rod 210 is in abutting engagement with the inner side of the spiral cavity 221 to form a sealed delivery channel, thereby realizing stable delivery of lubricating oil.

[0033] The surface of the oil injection pipe 200 is provided with an oil storage bottle 202 for storing lubricating oil, and one end of the oil injection pipe 200 is detachably connected with an oil injection nozzle 201 to adapt to different specifications of gear reducers.

[0034] The end of the screw rod 210 is fixedly connected with a driving gear 211 in transmission engagement with the output end of the driving motor 120, and the axis of the screw rod 210 is offset relative to the axis of the driving gear 211 to form an eccentric rotation structure, thereby improving the efficiency and stability of fluid delivery.

[0035] Further optimize the sealing of the device, the inner wall of the spiral cavity 221 is provided with a wear-resistant and corrosion-resistant coating, which is made of polytetrafluoroethylene PTFE or fluorocarbon coating, for enhancing durability and maintaining sealing when the screw rod 210 rotates to prevent lubricating oil leakage and improve delivery efficiency.

[0036] The screw rod 210 is made of high-strength stainless steel material, and the outer periphery is treated with chrome plating or fluorocarbon coating to reduce friction loss and improve corrosion resistance, so that it can adapt to long-term use in high temperature and high pressure environment.

[0037] To ensure the continuity of lubricating oil delivery, the outer periphery of the screw rod 210 is in close abutment with the inner side of the spiral cavity 221, so that it can push the lubricating oil to move axially along the injection pipe 220 when rotating, and form multiple independent sealed delivery chambers inside the spiral cavity 221.

[0038] The spiral channel of the spiral cavity 221 is designed as a variable pitch structure, that is, the pitch of the spiral cavity 221 is slightly different from the pitch of the screw rod 210, thereby forming multiple sealed cavities uniformly distributed along the axial direction, ensuring that the lubricating oil can be continuously and stably delivered to the inside of the gear reducer, and preventing oil flow fluctuation caused by pulse delivery.

[0039] In order to improve the accuracy of the lubricating oil delivery, the surface of the oil storage bottle 202 is provided with a scale mark, so that the operator can monitor the remaining amount of lubricating oil in real time, avoid the problem of insufficient lubrication of the equipment due to insufficient oil, and improve the service life of the gear reducer. In addition, the oil injection nozzle 201 adopts a replaceable design, which can adapt to different specifications of the gear reducer oil injection hole, ensuring wide applicability and improving the versatility of the device.

[0040] Further optimize the stability of the delivery system, the meshing area of the spiral rod 210 and the spiral tube cavity 221 forms a fluid sealing cavity, which moves along the axial direction with the rotation of the spiral rod 210, so that the lubricating oil is always in a closed state for delivery. The sealing cavity can avoid air mixing during the delivery process, thereby preventing bubbles from being generated in the lubricating oil when injected into the gear reducer, improving the stability of oil injection and lubrication effect.

[0041] The working process of the utility model:

[0042] Start the device: the operator presses the trigger switch 111 to control the driving motor 120 to start, driving the driving gear 211 to rotate.

[0043] Drive the spiral conveying: the driving gear 211 drives the spiral rod 210 to rotate, and the outer periphery of the spiral rod is engaged with the inner wall of the spiral tube cavity 221, forming a plurality of sealed cavities.

[0044] Lubricating oil flow: the lubricating oil enters the injection pipe 220 from the oil storage bottle 202 and is gradually pushed to the oil injection nozzle 201 by the spiral rod 210.

[0045] Accurate oil injection: the lubricating oil enters the gear reducer through the oil injection nozzle 201, ensuring the lubrication demand of the equipment.

[0046] Stop the delivery: release the trigger switch 111, the driving motor 120 stops running, the spiral rod 210 stops rotating, and the oil injection process ends.

[0047] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A gear reducer oiling mechanism characterized by, The utility model relates to a lubricating oil injection gun, which comprises a gun body (100), an oil injection pipe (200) and a handle (110) fixed to one side of the gun body (100). The inner wall of the spiral cavity (221) is provided with a wear-resistant and corrosion-resistant layer, which can maintain appropriate sealing when the spiral rod (210) rotates, thereby improving the lubricating oil delivery efficiency and preventing leakage.

2. The oiling mechanism for a gear reducer according to claim 1, wherein The spiral rod (210) is made of high-strength metal material, and the spiral outer periphery is subjected to chrome plating or fluorocarbon coating treatment, thereby reducing friction loss and improving corrosion resistance.

3. The oiling mechanism for a gear reducer according to claim 1, wherein The outer periphery of the spiral rod (210) is in abutting engagement with the inner side of the spiral cavity (221), so that the spiral rod (210) can drive the lubricating oil to be delivered forward along the injection pipe (220) when it rotates.

4. The oiling mechanism for a gear reducer of claim 1, wherein The oil storage bottle (202) is provided with a scale mark for real-time monitoring of the remaining amount of lubricating oil.

5. The oiling mechanism for a gear reducer of claim 1, wherein The oil injection nozzle (201) is designed to be replaceable to adapt to different specifications of gear reducers.

6. The oiling mechanism for a gear reducer of claim 1, wherein The pitch of the spiral channel of the spiral cavity (221) is different from the pitch of the spiral rod (210), forming multiple sealing cavities distributed along the axial direction to realize continuous delivery of lubricating oil.

7. The oiling mechanism for a gear reducer of claim 1, wherein The engagement area of the spiral rod (210) and the spiral cavity (221) forms a fluid sealing cavity, which moves axially with the rotation of the spiral rod (210) to ensure stable delivery of lubricating oil and avoid the mixing of air bubbles.

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