A gear box with efficient lubrication

Abstract

The present invention relates to a gear box with efficient lubrication applied to the field of gear and rack technology, comprising a rack, a power gear meshingly connected to one end of the rack, a first lubrication gear and a second lubrication gear arranged on both sides of the power gear along the length direction of the rack, a first housing and a second housing arranged at the outer ends of the gear and the rack, a lubrication pump fixedly connected to one end of the housing away from the rack, a first pipe and a second pipe connected between the lubrication pump and the lubrication gear, and lubricating oil filled in the lubrication system, wherein the lubrication gear adopts a porous structure and is provided with a flow equalizing plate inside to guide the lubrication oil to be evenly distributed. When the gear box is working, the lubrication pump delivers the lubrication oil to the lubrication gear through the pipe and the flow equalizing plate, the lubrication oil penetrates into the tooth surface through the pores of the lubrication gear, and forms a lubrication oil film on the tooth surface. During the rotation process, the lubrication gear continuously cleans the rack tooth surface with the lubrication oil remaining on the surface.

Description

Technical Field

[0001] The present invention relates to a gear box with efficient lubrication, and in particular to a gear box with efficient lubrication applied in the technical field of gear racks. Background Art

[0002] Gear rack transmission is widely used in various mechanical equipment, such as elevators, CNC machine tools, construction machinery, etc. During the transmission process, there is relative sliding and severe impact load between the gear and the rack, which causes the tooth surface to be easily worn and fatigued. In order to reduce wear and extend the service life, the tooth surface needs to be lubricated. The traditional manual regular oiling and lubrication method is time-consuming and labor-intensive, and the lubrication effect is not good. Therefore, it is necessary to develop an efficient and automated gearbox lubrication system.

[0003] The Chinese invention patent CN108843952B specification discloses an automatic lubrication system for gear racks of indoor construction hoists, including a crossbar and a left lubrication mechanism and a right lubrication mechanism at both ends thereof, and a height adjustment mechanism and a hydraulic pump are used to achieve uniform dripping of lubricating oil. The system has a complex structure, occupies a large space, has a high cost, and can only lubricate the gears intermittently. The rack is in a stopped state during lubrication, and continuous lubrication during operation cannot be achieved.

[0004] The Chinese invention patent CN117685346B specification discloses an automatic lubrication device for a gear rack system, including a gear follower support mechanism, a lubrication mechanism and a passive oil output control mechanism. The gear is slidably connected to the rack through a sliding support assembly, and the lubricating oil drips onto the tooth surface through the oil outlet. Although the device realizes automatic lubrication of the gear, the lubricating oil is easily thrown off, the lubrication is insufficient, and the lubricating oil has poor penetration ability and cannot effectively lubricate local areas such as the tooth root. In addition, the device does not have a tooth surface cleaning function, and wear debris and impurities are easily accumulated on the tooth surface, aggravating wear.

[0005] The above design replaces manual lubrication with an automatic lubrication device, which improves the lubrication condition of the tooth surface to a certain extent. However, it still has certain limitations, such as discontinuous lubrication, insufficient lubrication, and poor cleaning effect, which makes it difficult to further improve the service life and reliability of the rack and pinion transmission.

[0006] In large-scale equipment such as mining machinery, construction machinery, and wind power equipment, gear rack transmission generally bears heavy loads, low speeds, frequent starts and stops, and other harsh working conditions. Traditional automatic lubrication systems can no longer meet performance requirements. Therefore, it is urgent to develop a new type of gearbox with efficient lubrication, full lubrication, and cleaning functions to meet the current application needs of large-scale equipment, extend its service life, reduce energy consumption and maintenance costs, and improve the overall performance and reliability of the equipment. Summary of the invention

[0007] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a gear box with efficient lubrication, which can achieve sufficient and continuous automatic lubrication during the continuous meshing transmission of the gear rack, improve the lubrication effect, and at the same time have a tooth surface cleaning function, effectively remove tooth surface wear debris and impurities, improve the service life and reliability of the gear rack transmission, and meet the application requirements of heavy-load and low-speed working conditions.

[0008] To solve the above problems, the present invention provides a gear box with efficient lubrication, including a rack, one end of the rack tooth surface is meshedly connected with a power gear, the power gear is provided with a first lubrication gear and a second lubrication gear symmetrically arranged on both sides along the length direction of the rack, the outer ends of the rack, the power gear, the first lubrication gear and the second lubrication gear are provided with a first box body and a second box body symmetrically arranged, the first box body and the second box body are fixedly connected with a lubrication pump at one end away from the rack, the liquid inlet and liquid outlet of the lubrication pump are respectively connected to the first lubrication gear and the second lubrication gear at both ends through a first pipe and a second pipe, the lubrication pump, the first pipe and the second pipe are filled with lubricating oil, both ends of the rack pass through the first box body and the second box body, and extend to the outside of the first box body and the second box body, the power gear, the first lubrication gear and the second lubrication gear are rotatably connected to the first box body and the second box body, and the first lubrication gear and the second lubrication gear are both porous structures.

[0009] As a further improvement of the present application, the rack is a helical gear, the power gear, the first lubrication gear and the second lubrication gear are all helical gears, and the inner walls of the first box body and the second box body are fixedly connected with the first transfer box and the second transfer box between the power gear and the first lubrication gear and between the power gear and the second lubrication gear, respectively.

[0010] As a further improvement of the present application, the first transfer box and the second transfer box are both hollow structures, and the first transfer box and the second transfer box are connected to the second pipe at one end close to the lubrication pump, and the first transfer box and the second transfer box are connected to the lubrication pump through the second pipe.

[0011] As a further improvement of the present application, the first lubrication gear and the second lubrication gear are fixedly connected with a first sealing plate and a second sealing plate at both ends along their axial direction, and the diameters of the first sealing plate and the second sealing plate are both smaller than the root circle diameter of the first lubrication gear.

[0012] As another improvement of the present application, the second sealing plate fixedly connected to the first lubrication gear and the second lubrication gear is rotatably connected to the first transfer box and the second transfer box respectively, and a sealing ring is provided between the second sealing plate and the first transfer box and the second transfer box, and the first sealing plates fixedly connected to the first lubrication gear and the second lubrication gear are rotatably connected to the first box body and the second box body.

[0013] As another improved supplement of the present application, the first lubrication gear and the second lubrication gear both include symmetrically arranged gear bodies, and ends of the symmetrically arranged gear bodies close to each other are fixedly connected with symmetrically arranged flow equalizing plates.

[0014] As another improvement supplement to the present application, the ends of the symmetrically arranged flow equalizing plates that are away from each other both penetrate the gear body, and the penetrating parts are fixedly connected to the first sealing plate and the second sealing plate respectively, and the ends of the symmetrically arranged flow equalizing plates that are away from each other are provided with multiple microholes, and the flow equalizing plates are hollow structures.

[0015] As another improvement of the present application, a rotating shaft is fixedly connected to the center of the power gear along its axial direction, and both ends of the rotating shaft pass through the first box body and the second box body respectively. The rotating shaft passes through one end of the second box body and is fixedly connected to a pulley, and passes through one end of the first box body and is fixedly connected to a flange.

[0016] A symmetrically arranged hydraulic gear is rotatably connected inside the lubricating pump. One end of the symmetrically arranged hydraulic gear close to the belt pulley penetrates the lubricating pump, and the penetrated parts are fixedly connected with the belt pulley.

[0017] The pulley on the rotating shaft is connected to the pulley on one of the hydraulic gears through a synchronous belt. The second pipe is embedded between the symmetrically arranged first box body and the second box body. The second pipe passes through the first box body and the second box body at one end away from the lubrication pump and is connected to the interior of the flow equalizing plate in the first lubrication gear and the second lubrication gear at one end away from the power gear.

[0018] In summary, this application has the following beneficial effects:

[0019] 1. By symmetrically arranging the first lubricating gear and the second lubricating gear on both sides of the power gear, the rack is continuously lubricated and cleaned by using the lubricating oil on the lubricating gear, which reduces the friction and wear of the tooth surface and prolongs the service life of the gear.

[0020] 2. The lubricated gear adopts a gear body with a porous structure, which is conducive to the penetration of lubricating oil into the tooth surface, forming a uniform and sufficient lubricating oil film on the tooth surface, further improving the lubrication effect.

[0021] 3. Setting a flow equalizer inside the lubricating gear can guide the lubricating oil to be evenly distributed to all parts of the gear body, avoiding lubrication dead corners and local wear, making lubrication more comprehensive and effective.

[0022] 4. A closed lubricating oil circulation system is formed by a lubrication pump and pipeline. The lubricating oil can be reused, which greatly extends the service life of the lubricating oil and ensures a long-lasting and stable lubrication effect.

[0023] 5. Sealing plates are set at both ends of the lubricating gear and cooperate with the box to form a reliable seal, which effectively prevents lubricating oil leakage, improves the utilization rate of lubricating oil and reduces lubricating oil consumption.

[0024] 6. The helical gear and helical gear structure makes the gear meshing more stable, the transmission vibration and noise are reduced, and the operation is smoother.

[0025] 7. The first transfer box and the second transfer box are added to guide the lubricating oil from the lubrication pump to the inside of the lubricating gear accurately, which improves the lubrication efficiency and reliability. The transfer box can also store lubricating oil to make the lubrication more sufficient and lasting.

[0026] 8. The flow plate adopts a hollow structure, with both ends passing through the gear body and connected to the sealing plate, which can not only guide the lubricating oil to be evenly distributed, but also improve the coaxiality between the sealing plate and the gear body, further enhancing the sealing performance.

[0027] 9. Micro holes are set at both ends of the flow plate, so that the lubricating oil can penetrate into all parts of the gear body more evenly, the lubrication distribution is more reasonable, and the lubrication effect is better.

[0028] 10. A synchronous belt is used to connect the rotating shaft and the hydraulic gear, so that the lubrication pump and the power gear can run synchronously, the lubricating oil delivery is matched with the gear speed, and the lubrication is more timely and sufficient.

[0029] 11. The lubrication pipeline is embedded between the boxes and directly connected to the inside of the flow equalizer, which shortens the flow path of the lubricating oil and further improves the lubrication efficiency.

[0030] 12. The power gear is connected to the box body through a rotating shaft. The rotating shaft extends outward and is provided with a pulley and a flange to facilitate connection with an external power source and a passive component to transmit power and motion. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is the overall structure diagram of this application;

[0032] Figure 2 This is the front view of the application;

[0033] Figure 3 For this application Figure 2 Middle AA section view;

[0034] Figure 4 For this application Figure 3 Enlarged view of point B in the middle;

[0035] Figure 5 This is an overall exploded view of this application;

[0036] Figure 6 Partial explosion for this application Figure 1 ;

[0037] Figure 7 Partial explosion for this application Figure 2 ;

[0038] Figure 8 Partial explosion for this application Figure 3 ;

[0039] Fig. 9 The appearance structure of this application Figure 1 ;

[0040] Fig.10 The appearance structure of this application Figure 2 .

[0041] Description of the numbers in the figure:

[0042] 1. Rack; 2. Power gear; 3. First lubrication gear; 4. Second lubrication gear; 5. First housing; 6. Second housing; 7. Lubrication pump; 8. First pipeline; 9. Second pipeline; 10. First transfer box; 11. Second transfer box; 12. First sealing plate; 13. Second sealing plate; 14. Gear body; 15. Flow equalizing plate; 16. Rotating shaft; 17. Pulley; 18. Hydraulic gear. DETAILED DESCRIPTION

[0043] Three implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0044] Embodiment 1:

[0045] Figure 1-Figure 10 As shown, this embodiment provides a gearbox with efficient lubrication, including a rack 1, one end of the tooth surface of the rack 1 is meshed with a power gear 2. The power gear 2 is provided with a symmetrically arranged first lubrication gear 3 and a second lubrication gear 4 on both sides along the length direction of the rack 1. The outer ends of the rack 1, the power gear 2, the first lubrication gear 3 and the second lubrication gear 4 are provided with a symmetrically arranged first box 5 and a second box 6. The first box 5 and the second box 6 are fixedly connected to a lubrication pump 7 at one end away from the rack 1. The liquid inlet and the liquid outlet of the lubrication pump 7 are connected to the two ends of the first lubrication gear 3 and the second lubrication gear 4 through the first pipe 8 and the second pipe 9 respectively. The lubrication pump 7, the first pipe 8 and the second pipe 9 are filled with lubricating oil. Both ends of the rack 1 penetrate the first box 5 and the second box 6 and extend to the outside of the first box 5 and the second box 6. The power gear 2, the first lubrication gear 3 and the second lubrication gear 4 are rotatably connected to the first box 5 and the second box 6. The first lubrication gear 3 and the second lubrication gear 4 are both porous structures, which is conducive to the penetration of lubricating oil into the tooth surface.

[0046] Furthermore, the first lubrication gear 3 and the second lubrication gear 4 are fixedly connected with a first sealing plate 12 and a second sealing plate 13 at both ends along the axial direction thereof. The diameters of the first sealing plate 12 and the second sealing plate 13 are both smaller than the root diameter of the first lubrication gear 3, and are used to seal the gap between the lubrication gear and the housing to prevent lubrication oil leakage.

[0047] Furthermore, the first lubricating gear 3 and the second lubricating gear 4 each include a symmetrically arranged gear body 14. The ends of the symmetrically arranged gear bodies 14 close to each other are fixedly connected with symmetrically arranged flow equalizing plates 15. The flow equalizing plates 15 are used to guide the lubricating oil to flow evenly to various parts of the gear body 14 to improve the lubrication effect.

[0048] In addition, a rotating shaft 16 is fixedly connected to the center of the power gear 2 along its axial direction. Both ends of the rotating shaft 16 respectively penetrate the first housing 5 and the second housing 6. One end of the rotating shaft 16 penetrating the second housing 6 is fixedly connected to a pulley 17, and one end of the rotating shaft 16 penetrating the first housing 5 is fixedly connected to a flange.

[0049] When the gearbox provided in this embodiment is working, the external power is transmitted to the power gear 2 through the pulley 17 and the rotating shaft 16. The power gear 2 is meshed with the rack 1, driving the rack 1 to move linearly along its length direction. At the same time, the rotation of the power gear 2 also drives the lubrication pump 7 to work through the rotating shaft 16 and the pulley 17. The lubrication pump 7 pumps the lubricating oil into the first lubrication gear 3 and the second lubrication gear 4 through the first pipeline 8 and the second pipeline 9.

[0050] The lubricating oil first enters the flow equalizing plate 15, and flows evenly to the gear bodies 14 on both sides under the guidance of the flow equalizing plate 15. The gear body 14 adopts a porous structure, and the lubricating oil can penetrate into the tooth surface through the micropores on the surface of the gear body 14, forming a lubricating oil film on the meshing tooth surface of the rack 1 and the power gear 2, playing a lubricating role, and reducing friction and wear.

[0051] At the same time, the rack 1 also drives the first lubricated gear 3 and the second lubricated gear 4 to rotate during the movement. The rotating lubricated gear surface continuously scrapes the surface of the rack 1, and the lubricating oil remaining on the surface of the lubricated gear is used to clean the tooth surface, remove the tooth surface wear debris and impurities, and keep the tooth surface clean.

[0052] A first sealing plate 12 and a second sealing plate 13 are provided between the first lubricating gear 3 and the second lubricating gear 4 and the first housing 5 and the second housing 6. The sealing plate fits the inner wall of the housing to prevent the lubricating oil from leaking from the gap between the lubricating gear and the housing, thereby improving the utilization rate of the lubricating oil.

[0053] By arranging the first lubricating gear 3 and the second lubricating gear 4 on both sides of the power gear 2 and using the lubricating gears to continuously lubricate and clean the rack 1, the friction on the tooth surface can be reduced and the service life of the gear can be extended.

[0054] The first lubricating gear 3 and the second lubricating gear 4 adopt a gear body 14 with a porous structure, which is conducive to the lubricating oil penetrating into the tooth surface to form a uniform and effective lubricating oil film.

[0055] A flow equalizing plate 15 is arranged inside the first lubricating gear 3 and the second lubricating gear 4 to guide the lubricating oil to be evenly distributed to all parts of the gear body 14, thereby avoiding lubrication dead corners and improving the lubrication effect.

[0056] The lubrication pump 7, the first pipeline 8 and the second pipeline 9 form a lubrication oil circulation system, the lubrication oil can be reused, and the lubrication effect is long-lasting.

[0057] The first sealing plate 12 and the second sealing plate 13 can effectively prevent the leakage of lubricating oil, improve the utilization rate of lubricating oil, and reduce the consumption of lubricating oil.

[0058] The power gear 2 is connected to the first housing 5 and the second housing 6 via a rotating shaft 16. The rotating shaft 16 is extended outward and provided with a pulley 17 and a flange plate, so as to be connected to an external power source and a passive component to transmit power.

[0059] The entire gearbox has a compact structure, reasonable layout, small size, and is easy to install and use. The internal lubrication and sealing design are reliable, and it can work stably for a long time under harsh working conditions with little maintenance workload.

[0060] In summary, the gearbox with efficient lubrication provided in this embodiment can improve the gear transmission efficiency and extend the service life by using a lubricating gear to continuously lubricate and clean the rack 1, combined with a circulating lubrication system and a reliable sealing design, and has broad application prospects.

[0061] Embodiment 2:

[0062] Figure 1-Figure 10 It is shown that this embodiment provides a gearbox with efficient lubrication, which is further improved on the basis of embodiment 1. The rack 1 adopts helical teeth, and the power gear 2, the first lubrication gear 3 and the second lubrication gear 4 meshing therewith are all helical gears matched with the helical teeth. The helical gear structure can make the gear meshing more stable, reduce vibration and noise, and the helical gear structure can make the rack 1 push the first lubrication gear 3 and the second lubrication gear 4 to rotate during the movement process. The axial direction of the first lubrication gear 3 and the second lubrication gear 4 is parallel to the moving direction of the rack 1, which is convenient for the first lubrication gear 3 and the second lubrication gear 4 to clean the tooth surface of the rack 1 during the rotation process.

[0063] On the inner walls of the first box body 5 and the second box body 6, between the power gear 2 and the first lubrication gear 3 and between the power gear 2 and the second lubrication gear 4, a first transfer box 10 and a second transfer box 11 are fixedly connected respectively. The first transfer box 10 and the second transfer box 11 are both hollow structures, used to guide the lubricating oil from the lubrication pump 7 to the first lubrication gear 3 and the second lubrication gear 4.

[0064] Specifically, the ends of the first transfer box 10 and the second transfer box 11 close to the lubrication pump 7 are connected to the second pipe 9. The lubrication pump 7 delivers the lubricating oil to the first transfer box 10 and the second transfer box 11 through the second pipe 9, and then flows into the first lubrication gear 3 and the second lubrication gear 4 through the transfer box. The first transfer box 10 and the second transfer box 11 are open at one end away from the lubrication pump 7, respectively facing the end faces of the first lubrication gear 3 and the second lubrication gear 4, and the lubricating oil can flow from the transfer box into the lubrication gear.

[0065] Furthermore, a second sealing plate 13 is fixedly connected to one end of the first lubrication gear 3 and the second lubrication gear 4 away from the power gear 2. The second sealing plate 13 is rotatably connected to the open ends of the first transfer box 10 and the second transfer box 11 to seal the transfer box. A sealing ring is provided between the second sealing plate 13 and the first transfer box 10 and the second transfer box 11 to prevent lubricating oil leakage.

[0066] A first sealing plate 12 is fixedly connected to one end of the first lubricating gear 3 and the second lubricating gear 4 close to the power gear 2. The first sealing plate 12 is rotatably connected to the inner wall of the first box body 5 and the second box body 6 to seal the gap between the first lubricating gear 3 and the second lubricating gear 4 and the first box body 5 and the second box body 6.

[0067] The sealing rings provided between the second sealing plate 13 and the first transfer box 10 and the second transfer box 11 can prevent the lubricating oil from leaking from between the transfer box and the lubricating gear. The first sealing plate 12 is rotatably connected to the inner wall of the first box body 5 and the second box body 6 to prevent the lubricating oil from leaking from the gap between the lubricating gear and the box body.

[0068] When the gearbox provided in this embodiment is working, external power is transmitted to the power gear 2 through the pulley 17 and the rotating shaft 16. The power gear 2, the first lubricating gear 3, and the second lubricating gear 4 are all helical gears, which mesh with the helical teeth on the rack 1 to drive the rack 1 to move linearly along its length. The helical gear structure makes the meshing more stable and reduces vibration and impact.

[0069] At the same time, the rotation of the power gear 2 also drives the lubrication pump 7 to work through the rotating shaft 16 and the pulley 17. The lubrication pump 7 delivers the lubricating oil to the first transfer box 10 and the second transfer box 11 through the second pipeline 9. The first transfer box 10 is located between the power gear 2 and the first lubrication gear 3, and the second transfer box 11 is located between the power gear 2 and the second lubrication gear 4. The first transfer box 10 and the second transfer box 11 are hollow structures and are filled with lubricating oil.

[0070] The lubricating oil flows into the first lubricating gear 3 and the second lubricating gear 4 from the openings at the ends of the first transfer box 10 and the second transfer box 11 away from the lubricating pump 7. Under the guidance of the flow equalizing plate 15, the lubricating oil is evenly distributed to all parts of the gear body 14, and penetrates into the tooth surface through the micropores on the surface of the gear body 14, forming a lubricating oil film on the meshing tooth surfaces of the rack 1 and the power gear 2, the first lubricating gear 3, and the second lubricating gear 4, playing a lubricating role and reducing friction and wear.

[0071] At the same time, the rack 1 drives the first lubricated gear 3 and the second lubricated gear 4 to rotate during the movement. The surfaces of the rotating first lubricated gear 3 and the second lubricated gear 4 continuously scrape the surface of the rack 1, and the lubricating oil remaining on the surface of the lubricated gear is used to clean the tooth surface to remove the wear debris and impurities on the tooth surface.

[0072] A second sealing plate 13 is fixedly connected to the end surface of the first lubrication gear 3 and the second lubrication gear 4 away from the power gear 2. The second sealing plate 13 is rotatably connected to the open ends of the first transfer box 10 and the second transfer box 11, and is provided with a sealing ring to prevent lubricating oil from leaking between the transfer box and the lubrication gear.

[0073] The first sealing plate 12 is fixedly connected to the end surface of the first lubrication gear 3 and the second lubrication gear 4 near the power gear 2. The first sealing plate 12 is rotatably connected to the inner wall of the first box body 5 and the second box body 6 to prevent lubrication oil from leaking between the lubrication gear and the box body.

[0074] The helical gear and helical gear structure makes the gear meshing more stable, the transmission vibration and noise are smaller, and the operation is smoother.

[0075] The first transfer box 10 and the second transfer box 11 are provided to guide the lubricating oil from the lubricating pump 7 to flow accurately into the first lubricating gear 3 and the second lubricating gear 4, thereby improving the lubricating efficiency.

[0076] The first transfer box 10 and the second transfer box 11 are hollow structures and can store lubricating oil, so that lubrication is more sufficient and lasting.

[0077] The second sealing plate 13 cooperates with the first transfer box 10 and the second transfer box 11 and is provided with a sealing ring, which can effectively prevent the lubricating oil from leaking from between the transfer box and the lubricating gear.

[0078] The first sealing plate 12 cooperates with the inner walls of the first housing 5 and the second housing 6 to prevent the lubricating oil from leaking from between the lubricating gear and the housing.

[0079] The first lubricating gear 3 and the second lubricating gear 4 clean the rack 1 with surface lubricating oil during the rotation process, so as to keep the tooth surface clean and reduce wear.

[0080] On the basis of Example 1, the lubricating oil path design and the sealing design are further optimized, so that the lubrication is more sufficient, the sealing is more reliable, the lubricating oil utilization rate is higher, and the leakage risk is lower.

[0081] To sum up, based on Example 1, this embodiment adopts a helical gear structure, cooperates with a transfer box and a reliable sealing device, and further improves the stability, lubrication performance and sealing reliability of the gearbox, so that it can maintain efficient lubrication for a long time even under harsh working conditions, and operate safely and reliably, and has broader application prospects.

[0082] Embodiment 3:

[0083] Figure 1-Figure 10 It is shown that this embodiment provides a gearbox with efficient lubrication, which is further improved on the basis of Embodiment 1 and Embodiment 2. The flow equalizing plate 15 inside the first lubricating gear 3 and the second lubricating gear 4 adopts a special design.

[0084] Specifically, the ends of the symmetrically arranged equalizer plates 15 that are away from each other all penetrate the gear body 14 and extend to the outside of the gear body 14. The parts that penetrate the gear body 14 are respectively fixedly connected to the first sealing plate 12 and the second sealing plate 13. In this way, the equalizer plates 15 can not only guide the lubricating oil to flow inside the gear body 14, but also be fixedly connected to the first sealing plate 12 and the second sealing plate 13, thereby improving the coaxiality between the sealing plate and the gear body and ensuring the sealing performance.

[0085] A plurality of micropores are provided on the ends of the symmetrically arranged equalizer plates 15 that are away from each other, that is, on the portions extending through the gear body 14. The equalizer plates 15 themselves are hollow structures, and their internal cavities are connected to the first pipe 8 or the second pipe 9. After the lubricating oil enters the equalizer plates 15 through the pipes, it can flow into the gear body 14 through the micropores at the ends of the equalizer plates 15, and penetrate into the gear surfaces through the micropores on the gear body 14 for lubrication.

[0086] Furthermore, a symmetrically arranged hydraulic gear 18 is rotatably connected in the lubrication pump 7. The hydraulic gear 18 is a pair of gears meshing with each other, and the lubrication oil is delivered by rotation. The ends of the symmetrically arranged hydraulic gears 18 close to the pulley 17 penetrate the housing of the lubrication pump 7 and extend to the outside of the lubrication pump 7. The parts extending through the housing of the lubrication pump 7 are fixedly connected to the pulley 17.

[0087] The pulley 17 on the rotating shaft 16 is connected to the pulley 17 on one of the hydraulic gears 18 through a synchronous belt. When the power gear 2 rotates through the rotating shaft 16, the pulley 17 on it drives the pulley 17 on the hydraulic gear 18 to rotate through the synchronous belt, thereby driving the hydraulic gear 18 to rotate and realize the delivery of lubricating oil.

[0088] A connected cavity is provided between the first housing 5 and the second housing 6. The second pipe 9 is embedded in the cavity and arranged along the length direction of the rack 1. The end of the second pipe 9 away from the lubrication pump 7 penetrates the inner wall of the first housing 5 and the second housing 6, and extends into the first lubrication gear 3 and the second lubrication gear 4, and is connected with the cavity inside the flow equalizing plate 15. The lubricating oil flows into the hollow interior of the flow equalizing plate 15 through the second pipe 9, and then flows into the gear body 14 through the micropores at the end of the flow equalizing plate 15, so as to lubricate the rack 1.

[0089] When the gearbox provided in this embodiment is working, external power is transmitted to the power gear 2 through the rotating shaft 16, driving the power gear 2 to rotate. The power gear 2 is meshed with the rack 1, driving the rack 1 to make a linear motion along its length direction.

[0090] A pulley 17 is connected to the rotating shaft 16, which is connected to the pulley 17 on a hydraulic gear 18 on the lubrication pump 7 through a synchronous belt. Along with the rotation of the rotating shaft 16, the hydraulic gear 18 also rotates synchronously to pump lubricating oil.

[0091] When the hydraulic gear 18 rotates, the lubricating oil is transported from the lubricating pump 7 to the second pipe 9. The second pipe 9 is embedded in the cavity between the first box body 5 and the second box body 6 and arranged along the length direction of the rack 1. After the lubricating oil fills the second pipe 9, it flows from the end away from the lubricating pump 7 into the flow equalizing plate 15 inside the first lubricating gear 3 and the second lubricating gear 4.

[0092] The flow equalizer 15 is a hollow structure with a cavity inside. Both ends of the flow equalizer 15 penetrate the gear body 14 and extend to the outside of the gear body 14, and are fixedly connected to the first sealing plate 12 and the second sealing plate 13. After the lubricating oil enters the cavity inside the flow equalizer 15 from the second pipeline 9, it flows into the gear body 14 through the micropores at both ends of the flow equalizer 15, and seeps out from the micropores on the surface of the gear body 14, forming a lubricating oil film on the tooth surface to lubricate the rack 1 and the power gear 2.

[0093] During the movement, the rack 1 also drives the first lubricated gear 3 and the second lubricated gear 4 to rotate. The lubricating oil remaining on the surfaces of the first lubricated gear 3 and the second lubricated gear 4 continuously scrapes the surface of the rack 1 to clean it and remove the wear debris and impurities.

[0094] The cooperation between the flow equalizing plate 15 and the first sealing plate 12 and the second sealing plate 13 can not only guide the lubricating oil to be evenly distributed inside the gear body 14, but also improve the coaxiality between the sealing plate and the gear body 14 to ensure the sealing performance.

[0095] The flow equalizing plate 15 adopts a hollow structure, with both ends passing through the gear body 14 and connected to the first sealing plate 12 and the second sealing plate 13, thereby improving the coaxiality between the sealing plate and the gear body 14 and effectively preventing lubricating oil leakage.

[0096] Micro holes are provided at both ends of the flow equalizing plate 15 so that the lubricating oil can be evenly distributed to all parts of the gear body 14, thereby improving the lubrication effect and reducing the wear on the tooth surface.

[0097] A synchronous belt is used to connect the rotating shaft 16 and the hydraulic gear 18, so that the lubrication pump 7 and the power gear 2 operate synchronously, the lubrication oil delivery flow rate matches the gear speed, and the lubrication is more sufficient and timely.

[0098] The second pipe 9 is embedded between the first box body 5 and the second box body 6 and is directly connected to the interior of the flow equalizing plate 15, thereby shortening the flow path of the lubricating oil and further improving the lubrication efficiency.

[0099] During operation, the first lubricating gear 3 and the second lubricating gear 4 continuously clean the surface of the rack 1 using the lubricating oil remaining on the surface, so as to keep the tooth surface clean and reduce adhesion wear.

[0100] On the basis of Embodiments 1 and 2, the coordination between the flow equalizing plate 15 and the sealing plate, the transmission of the lubrication pump 7 and the design of the lubrication pipeline are further improved, so that the lubrication performance and the sealing performance are more excellent and the operation is more efficient and stable.

[0101] In summary, this embodiment further improves the lubrication performance, sealing performance and transmission efficiency of the gearbox through the close cooperation between the flow equalizing plate 15 and the sealing plate, the lubrication pump 7 driven by the synchronous belt, and the design of the pipeline, so that it can maintain excellent lubrication effect under harsh working conditions for a long time, operate safely and smoothly, thereby extending the service life and broadening the scope of application. This is of great significance for improving the reliability of the transmission device and reducing maintenance costs. The gearbox has a compact structure, better lubrication and sealing performance, stable and efficient operation, and a long service life. It can be widely used in transmission occasions under harsh working conditions such as heavy loads and high speeds.

[0102] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A gearbox with efficient lubrication, characterized in that: The invention comprises a rack (1), wherein one end of the tooth surface of the rack (1) is meshingly connected with a power gear (2), wherein the power gear (2) is provided with a first lubrication gear (3) and a second lubrication gear (4) symmetrically arranged on both sides along the length direction of the rack (1), wherein the outer ends of the rack (1), the power gear (2), the first lubrication gear (3) and the second lubrication gear (4) are provided with a first box body (5) and a second box body (6) symmetrically arranged, wherein the first box body (5) and the second box body (6) are fixedly connected with a lubrication pump (7) at one end away from the rack (1), and the liquid inlet and the liquid outlet of the lubrication pump (7) are respectively connected through a first pipe The first lubrication gear (3) and the second lubrication gear (4) are connected to the first lubrication gear (3) and the second lubrication gear (4) at both ends; the lubrication pump (7), the first pipeline (8) and the second pipeline (9) are all filled with lubrication oil; both ends of the rack (1) penetrate the first housing (5) and the second housing (6) and extend to the outside of the first housing (5) and the second housing (6); the power gear (2), the first lubrication gear (3) and the second lubrication gear (4) are all rotatably connected to the first housing (5) and the second housing (6); and the first lubrication gear (3) and the second lubrication gear (4) are both porous structures; The first lubricating gear (3) and the second lubricating gear (4) both comprise symmetrically arranged gear bodies (14); the ends of the symmetrically arranged gear bodies (14) that are close to each other are both fixedly connected to symmetrically arranged flow equalizing plates (15); the ends of the symmetrically arranged flow equalizing plates (15) that are far away from each other penetrate the gear bodies (14), and the penetrated portions are respectively fixedly connected to the first sealing plate (12) and the second sealing plate (13); the ends of the symmetrically arranged flow equalizing plates (15) that are far away from each other are both provided with a plurality of micropores, and the flow equalizing plates (15) are hollow structures.

2. A gearbox with efficient lubrication according to claim 1, characterized in that: The rack (1) is a helical gear, the power gear (2), the first lubrication gear (3) and the second lubrication gear (4) are all helical gears, and the first box body (5) and the second box body (6) are respectively fixedly connected with a first transfer box (10) and a second transfer box (11) on the inner walls thereof, located between the power gear (2) and the first lubrication gear (3) and between the power gear (2) and the second lubrication gear (4).

3. A gearbox with efficient lubrication according to claim 2, characterized in that: The first transfer box (10) and the second transfer box (11) are both hollow structures, and the first transfer box (10) and the second transfer box (11) are both connected to the second pipe (9) at one end close to the lubrication pump (7), and the first transfer box (10) and the second transfer box (11) are connected to the lubrication pump (7) via the second pipe (9).

4. The gear box with efficient lubrication according to claim 1, characterized in that: The first lubrication gear (3) and the second lubrication gear (4) are both fixedly connected with a first sealing plate (12) and a second sealing plate (13) at both ends along the axial direction thereof, and the diameters of the first sealing plate (12) and the second sealing plate (13) are both smaller than the tooth root diameter of the first lubrication gear (3).

5. A gearbox with efficient lubrication according to claim 4, characterized in that: The second sealing plate (13) fixedly connected to the first lubricating gear (3) and the second lubricating gear (4) is rotatably connected to the first transfer box (10) and the second transfer box (11), respectively, and a sealing ring is provided between the second sealing plate (13) and the first transfer box (10) and the second transfer box (11), and the first sealing plate (12) fixedly connected to the first lubricating gear (3) and the second lubricating gear (4) is rotatably connected to the first box body (5) and the second box body (6).

6. A gearbox with efficient lubrication according to claim 1, characterized in that: A rotating shaft (16) is fixedly connected to the center of the power gear (2) along its axial direction, and two ends of the rotating shaft (16) respectively penetrate the first housing (5) and the second housing (6), and one end of the rotating shaft (16) that penetrates the second housing (6) is fixedly connected to a pulley (17), and one end that penetrates the first housing (5) is fixedly connected to a flange.

7. A gearbox with efficient lubrication according to claim 6, characterized in that: A symmetrically arranged hydraulic gear (18) is rotatably connected inside the lubricating pump (7), and the ends of the symmetrically arranged hydraulic gears (18) close to the pulley (17) all penetrate the lubricating pump (7), and the penetrated portions are fixedly connected to the pulley (17).

8. The gear box with efficient lubrication according to claim 7, characterized in that: The pulley (17) on the rotating shaft (16) is connected to the pulley (17) on one of the hydraulic gears (18) via a synchronous belt. The second pipe (9) is embedded between the symmetrically arranged first housing (5) and the second housing (6). The end of the second pipe (9) away from the lubrication pump (7) penetrates the first housing (5) and the second housing (6) and is connected to the interior of the flow equalizing plate (15) in the first lubrication gear (3) and the second lubrication gear (4) away from the power gear (2).

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