A planetary gearbox with automatic lubricant replenishment

Abstract

The present invention relates to the technical field of planetary gearboxes, and discloses a planetary gearbox with automatic lubricant replenishment, comprising a planetary gear reducer and an oil inlet opening provided on the planetary gear reducer, wherein an automatic oil delivery assembly is provided in the oil storage barrel; the lubricating oil in the oil storage barrel is processed by a filter and then flows into the oil inlet opening; after the automatic oil delivery assembly delivers all the lubricating oil in the oil storage barrel into the planetary gear reducer, the automatic oil delivery assembly automatically returns to its initial state under the drive of a pullback assembly, and the pullback assembly transmits a signal to a control or monitoring end; an oil scraping assembly is also installed on the automatic oil delivery assembly, and the oil scraping assembly can scrape oil from the cavity wall in the oil storage barrel during the return and reset process of the automatic oil delivery assembly. The present invention can conveniently and quickly implement self-lubrication of the planetary gear reducer, has a high degree of intelligence, and uses lubricating oil efficiently.

Description

Technical Field

[0001] The present invention relates to the technical field of planetary gearboxes, in particular to a planetary gearbox capable of automatically replenishing lubricant. Background Art

[0002] A reducer is a transmission component that generally reduces the speed of the power end and increases torque. The most common type of reducer is the box-type gear reducer, which is typically lubricated with oil or grease. Planetary gear reducers, as a type of reducer, are characterized by their small size, high load capacity, and stable operation.

[0003] Due to the large number of transmission gears involved in existing planetary gear reducers, it is particularly important to ensure the lubrication of the internal transmission structure during actual use. However, the self-lubricating structure of the reducer in the existing technology cannot effectively meet the actual lubrication needs of planetary gear reducers. At the same time, the existing self-lubricating method is complex, has a low level of intelligence, and uses lubricating oil inefficiently. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the shortcomings of the existing technology, the present invention provides a planetary gearbox with automatic lubricant replenishment, which solves the problems of complex self-lubrication method, low intelligence level and low lubricating oil utilization efficiency of the existing reducer.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a planetary gearbox with automatic lubricant replenishment, comprising a planetary gear reducer and an oil inlet hole provided on the planetary gear reducer, wherein an oil storage barrel is detachably mounted at the oil inlet hole of the planetary gear reducer, and an automatic oil delivery component is provided in the oil storage barrel. When the volume of lubricating oil in the planetary gear reducer decreases, the automatic oil delivery component pushes the lubricating oil in the oil storage barrel into the oil inlet hole to maintain pressure balance between the oil storage barrel and the planetary gear reducer, and then the automatic oil delivery component stops moving; the oil storage barrel is provided with a plurality of oil storage barrels, wherein ... The lubricating oil is processed by the filter and flows into the oil inlet hole. The filter can filter and magnetically absorb impurities in the flowing lubricating oil; when the automatic oil delivery component sends all the lubricating oil in the oil storage barrel into the planetary gear reducer, the automatic oil delivery component is driven by the pullback component and automatically returns to the initial state, and the pullback component transmits a signal to the control or monitoring end; the automatic oil delivery component is also equipped with an oil scraping component, which can scrape oil from the cavity wall in the oil storage barrel during the return and reset process of the automatic oil delivery component.

[0008] Preferably, the filter includes a filter cartridge and inlet and outlet pipes respectively arranged at the upper and lower ends of the filter cartridge, the inlet and outlet pipes are respectively threadedly connected to the oil storage barrel and the oil inlet hole, the inner cavity of the filter cartridge is symmetrically arranged with magnet blocks, and the inner cavity of the filter cartridge is provided with a filter screen below the magnet block.

[0009] Preferably, the automatic oil delivery assembly includes an oil delivery piston and a push spring, the oil delivery piston is slidingly connected to the inner cavity of the oil storage barrel, the push spring is fixedly connected to the oil delivery piston and the cavity wall of the oil storage barrel respectively, and the push spring is initially in a compressed state.

[0010] Preferably, the pullback assembly includes a base plate fixedly mounted on the oil storage barrel, a driving motor, a winding wheel mounted on the output shaft of the driving motor, a connecting rope fixedly connected to the driving motor, and a signal transmission module arranged on the base plate. The driving motor is fixedly mounted on the base plate, and the end of the connecting rope away from the driving motor is fixedly connected to the oil delivery piston. A trigger assembly is provided at the bottom of the cavity of the oil storage barrel near the oil inlet hole. When the oil delivery piston moves to the maximum stroke, it will contact the trigger assembly, and at this time the driving motor starts and the signal transmission module sends a signal.

[0011] Preferably, the trigger assembly includes a travel switch arranged at the bottom of the oil storage barrel cavity and a trigger head arranged on the oil delivery piston, and the travel switch is electrically connected to the drive motor and the signal transmission module through a connecting line.

[0012] Preferably, the driving motor is fixedly connected to the base plate through a vertical plate, a protective shell is provided at the edge of the base plate, a socket is provided on the protective shell, the socket is electrically connected to the driving motor and the signal transmission module, the connecting wire and the socket are electrically connected in a pluggable manner, and a cover sleeve is threadedly connected to one end of the protective shell.

[0013] Preferably, the oil scraper assembly includes an oil scraper ring, and the oil scraper ring is fixedly connected to the end face of the oil feeding piston via a mounting shaft.

[0014] Preferably, the oil scraper ring comprises an annular body fixed to the mounting shaft, the edge of the annular body away from the end face of the oil feeding piston is provided with a rounded corner, and the end face of the annular body close to the oil feeding piston is provided with an annular inclined surface.

[0015] Preferably, an oil port plug is threadedly connected to the oil storage barrel, an annular groove is provided in the middle of the oil storage barrel, and the planetary gear reducer housing is clamped and connected to the annular groove through a reinforcing hoop.

[0016] Preferably, a connecting block is fixedly connected to the lower surface of the oil storage barrel, a cushion block is sleeved on the lower part of the connecting block, and the cushion block is made of elastic material.

[0017] (3) Beneficial effects

[0018] The present invention has the following beneficial effects:

[0019] (1) The planetary gearbox with automatic lubricant replenishment is provided with an automatic oil delivery component. When the lubricant in the planetary gear reducer is consumed, the automatic oil delivery component uses the pressure difference between the oil storage barrel and the inner cavity of the reducer to push the lubricant in the oil storage barrel into the planetary gear reducer, thereby ensuring that the lubricant in the reducer is always full of lubricant, thereby ensuring that the efficient lubrication effect of the transmission structure in the planetary gear reducer is always maintained in the working state; the set pullback component can drive the automatic oil delivery component to return and reset after the lubricant in the oil storage barrel is pushed out, so that subsequent personnel can quickly add lubricant to the oil storage barrel without manually returning the automatic oil delivery component; the pullback component sends a signal to the host or the monitoring end, thereby reminding the staff that the lubricant in the oil storage barrel is consumed and needs to be replenished in time.

[0020] (2) The planetary gearbox with automatic lubricant replenishment can filter out impurities from the lubricating oil in the oil storage barrel that enters the planetary gear reducer through the provided filtering component. At the same time, since the transmission structure of the reducer contacts and wears each other during daily operation, metal impurities will be generated, and the metal impurities will flow with the lubricating oil. Therefore, when the lubricating oil carrying metal impurities flows into the vicinity of the oil outlet of the filter, it can be magnetically adsorbed and collected, effectively reducing the impact of the metal impurities on the transmission mechanism in the reducer, and also facilitating subsequent unified processing. By providing an oil scraping component, the lubricating oil on the wall of the oil storage barrel can be scraped off synchronously during the reset process of the automatic oil delivery component, thereby improving the actual use efficiency of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the oil inlet hole layout structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the overall structure of the oil storage barrel of the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of the oil storage barrel of the present invention;

[0025] Figure 5 This is a schematic diagram of the installation structure of the oil delivery piston and the oil scraper ring of the present invention;

[0026] Figure 6 This is a schematic diagram of the internal structure of the protective shell of the present invention;

[0027] Figure 7It is a schematic diagram of the partial cross-section structure of the annular body of the present invention;

[0028] Figure 8 This is a schematic diagram of the partial cross-section structure of the filter of the present invention.

[0029] In the figure: 1. Planetary gear reducer; 2. Oil inlet hole; 3. Filter; 31. Filter cartridge; 32. Magnet block; 33. Filter screen; 34. Inlet and outlet pipes; 4. Oil storage barrel; 5. Automatic oil delivery assembly; 51. Oil delivery piston; 52. Push spring; 6. Pullback assembly; 61. Bottom plate; 62. Vertical plate; 63. Drive motor; 64. Winding wheel; 65. Connecting rope; 66. Signal transmission module; 67. Protective shell; 68. Cover sleeve; 69. Connector; 610. Connecting wire; 611. Travel switch; 612. Trigger head; 7. Oil scraper assembly; 71. Mounting shaft; 72. Oil scraper ring; 721. Ring body; 722. Chamfered corner; 723. Inclined surface; 8. Oil port plug; 9. Annular groove; 10. Reinforcement hoop; 11. Connecting block; 12. Spacer. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figure 1 The present invention provides a technical solution: a planetary gearbox with automatic lubricant replenishment, comprising a planetary gear reducer 1 and an oil inlet hole 2 opened on the planetary gear reducer 1, an oil storage barrel 4 is detachably mounted at the oil inlet hole 2 on the planetary gear reducer 1, an automatic oil delivery component 5 is arranged in the oil storage barrel 4, when the volume of the lubricating oil in the planetary gear reducer 1 is reduced, the automatic oil delivery component 5 pushes the lubricating oil in the oil storage barrel 4 into the oil inlet hole 2 to maintain the pressure balance between the oil storage barrel 4 and the planetary gear reducer 1, and then the automatic oil delivery component 5 stops moving; the lubricating oil in the oil storage barrel 4 is After being processed by the filter 3, the lubricating oil flows into the oil inlet 2. The filter 3 can filter and magnetically absorb impurities in the flowing lubricating oil; when the automatic oil delivery component 5 delivers all the lubricating oil in the oil storage barrel 4 into the planetary gear reducer 1, the automatic oil delivery component 5 is driven by the pullback component 6 and automatically returns to the initial state, and the pullback component 6 sends a signal to the control or monitoring end; the automatic oil delivery component 5 is also equipped with an oil scraping component 7, which can scrape oil from the cavity wall in the oil storage barrel 4 during the return and reset process of the automatic oil delivery component 5.

[0032] The present invention, by providing an automatic oil delivery component 5, can make use of the pressure difference between the oil storage barrel 4 and the inner cavity of the reducer to push the lubricating oil in the oil storage barrel 4 into the planetary gear reducer 1 when the lubricating oil in the planetary gear reducer 1 is consumed, so as to always ensure that the lubricating oil in the reducer is in a full state, thereby ensuring that the efficient lubrication effect of the transmission structure in the planetary gear reducer 1 is always maintained in the working state; by providing a filtering component, the lubricating oil in the oil storage barrel 4 entering the planetary gear reducer 1 can be filtered for impurities. At the same time, since the transmission structures of the reducer contact and wear with each other during daily operation, metal impurities will be generated, and the metal impurities will flow with the lubricating oil. Therefore, when the lubricating oil carrying metal impurities is When the oil flows into the vicinity of the oil outlet of the filter 3, it can be collected by magnetic attraction, which effectively reduces the influence of metal impurities on the transmission mechanism in the reducer, and is also convenient for subsequent unified processing; through the set pullback component 6, after the lubricating oil in the oil storage barrel 4 is pushed out, the automatic oil delivery component 5 can be driven to return and reset so that subsequent personnel can quickly add lubricating oil to the oil storage barrel 4 without manually returning the automatic oil delivery component 5; the pullback component 6 sends a signal to the host or the monitoring end to remind the staff that the lubricating oil in the oil storage barrel 4 is consumed and needs to be replenished in time; through the set oil scraping component 7, the lubricating oil on the wall of the oil storage barrel 4 can be scraped off synchronously during the reset process of the automatic oil delivery component 5, thereby improving the actual use efficiency of the lubricating oil.

[0033] In this embodiment, the filter 3 includes a filter cartridge 31 and inlet and outlet pipes 34 respectively provided at the upper and lower ends of the filter cartridge 31. The inlet and outlet pipes 34 are respectively threadedly connected to the oil storage barrel 4 and the oil inlet hole 2. The inner cavity of the filter cartridge 31 is symmetrically arranged with magnet blocks 32. The inner cavity of the filter cartridge 31 is located below the magnet blocks 32 and a filter screen 33 is arranged. Figure 4 and 8 As shown, by setting the filter screen 33 and the magnet block 32, the lubricating oil in the oil storage barrel 4 entering the planetary gear reducer 1 can be filtered for impurities. At the same time, since the transmission structures of the reducer contact and wear with each other during daily operation, metal impurities will be generated, and the metal impurities will flow with the lubricating oil. Therefore, when the lubricating oil carrying metal impurities flows into the vicinity of the inlet and outlet pipes 34 of the filter cylinder 31, it can be magnetically adsorbed and collected by the magnet block 32, effectively reducing the influence of the metal impurities on the transmission mechanism in the reducer, and also facilitating subsequent unified processing.

[0034] In this embodiment, the automatic oil delivery assembly 5 includes an oil delivery piston 51 and a push spring 52. The oil delivery piston 51 is slidably connected to the inner cavity of the oil storage barrel 4. The push spring 52 is fixedly connected to the oil delivery piston 51 and the cavity wall of the oil storage barrel 4 respectively. The push spring 52 is initially in a compressed state. Figure 4 and5 As shown, through the provision of the oil feeding piston 51 and the push spring 52, when the lubricating oil in the planetary gear reducer 1 is consumed, there is a pressure difference between the oil storage barrel 4 and the inner cavity of the reducer, so that the compressed push spring 52 needs to restore its elastic deformation, thereby driving the oil feeding piston 51 to push the lubricating oil in the oil storage barrel 4 into the planetary gear reducer 1, so that the lubricating oil in the reducer can always be kept full, thereby ensuring that the efficient lubrication effect of the transmission structure in the planetary gear reducer 1 is always maintained in the working state.

[0035] In this embodiment, the pullback assembly 6 includes a base plate 61 fixedly mounted on the oil storage barrel 4, a drive motor 63, a reel 64 mounted on the output shaft of the drive motor 63, a connecting rope 65 fixedly connected to the drive motor 63, and a signal transmission module 66 provided on the base plate 61. The drive motor 63 is fixedly mounted on the base plate 61. The end of the connecting rope 65 away from the drive motor 63 is fixedly connected to the oil delivery piston 51. A trigger assembly is provided at the bottom of the cavity of the oil storage barrel 4 near the oil inlet hole 2. When the oil delivery piston 51 moves to the maximum stroke, it will contact the trigger assembly. At this time, the drive motor 63 is started and the signal transmission module 66 sends a signal. Figure 6 and 7 As shown, through the provided driving motor 63, winding wheel 64 and connecting rope 65, after the lubricating oil in the oil storage barrel 4 is pushed out, the oil delivery piston 51 can be driven to return and reset, so that subsequent personnel can quickly add lubricating oil to the oil storage barrel 4 without manually returning the oil delivery piston 51; at the same time, through the provided trigger component and signal transmission module 66, a signal can be sent to the host or monitoring end to remind the staff that the lubricating oil in the oil storage barrel 4 has been consumed and needs to be replenished in time.

[0036] In this embodiment, the trigger assembly includes a limit switch 611 arranged at the bottom of the oil storage barrel 4 and a trigger head 612 arranged on the oil delivery piston 51. The limit switch 611 is electrically connected to the drive motor 63 and the signal transmission module 66 through a connecting line 610.

[0037] In this embodiment, the bottom plate 61 is fixedly connected to the drive motor 63 through the vertical plate 62. A protective shell 67 is provided at the edge of the bottom plate 61. A socket 69 is provided on the protective shell 67. The socket 69 is electrically connected to the drive motor 63 and the signal transmission module 66. The connecting wire 610 is electrically connected to the socket 69 in a pluggable manner. One end of the protective shell 67 is threadedly connected to a cover sleeve 68. Figure 5 and 6As shown, the provided socket 69 and the connecting line 610 can facilitate the convenient plugging and unplugging to form a switch or to perform repair, maintenance and replacement of the electrical components in the protective shell 67; the provided protective shell 67 and the cover 68 can facilitate the sealing and protection of the structure in the protective shell 67, thereby increasing the service life of the internal electrical components.

[0038] In this embodiment, the oil scraper assembly 7 includes an oil scraper ring 72 , and the oil scraper ring 72 is fixedly connected to the end surface of the oil feeding piston 51 via a mounting shaft 71 .

[0039] In this embodiment, the oil scraper ring 72 includes an annular body 721 fixed to the mounting shaft 71. The edge of the annular body 721 away from the end face of the oil feeding piston 51 is provided with a rounded corner 722. The end face of the annular body 721 close to the oil feeding piston 51 is provided with an annular inclined surface 723. Figure 7 As shown, by setting the chamfer 722, when the oil feeding piston 51 drives the annular body 721 to push the lubricating oil, the chamfer 722 set on the end face edge of the annular body 721 can reduce the friction between the annular body 721 and the inner wall of the oil storage barrel 4, which is beneficial to the normal movement of the oil feeding piston 51 and reduces the wear between the oil storage barrel 4 and the annular body 721; by setting the annular inclined surface 723, when the oil feeding piston 51 drives the annular body 721 to return, the annular body 721 can scrape off the lubricating oil residue protruding from the inner wall of the oil storage barrel 4.

[0040] In this embodiment, an oil port plug 8 is threadedly connected to the oil storage barrel 4, an annular groove 9 is provided in the middle of the oil storage barrel 4, and a reinforcing hoop 10 is clamped and connected to the annular groove 9 on the housing of the planetary gear reducer 1.

[0041] In this embodiment, the lower surface of the oil storage barrel 4 is fixedly connected with a connecting block 11, and the lower part of the connecting block 11 is sleeved with a cushion block 12, which is made of elastic material. Figure 1-3 As shown, the reinforcement hoop 10 and the spacer 12 are provided, so that the installation stability of the oil storage barrel 4 and the planetary gear reducer 1 can be improved.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A planetary gearbox with automatic lubricant replenishment, comprising a planetary gear reducer and an oil inlet hole provided on the planetary gear reducer, characterized in that: The planetary gear reducer is provided with an oil storage barrel detachably mounted at the oil inlet hole, and an automatic oil delivery assembly is provided in the oil storage barrel. When the lubricating oil volume in the planetary gear reducer is reduced, the automatic oil delivery assembly pushes the lubricating oil in the oil storage barrel into the oil inlet hole to maintain the pressure balance between the oil storage barrel and the planetary gear reducer, and the automatic oil delivery assembly stops moving; the lubricating oil in the oil storage barrel is processed by the filter and then flows into the oil inlet hole, and the filter can filter and magnetically absorb impurities in the lubricating oil flowing in; when the automatic oil delivery assembly has delivered all the lubricating oil in the oil storage barrel into the planetary gear reducer, the automatic oil delivery assembly is driven by the pullback assembly to automatically return to the initial state, and the pullback assembly transmits a signal to the control or monitoring end; the automatic oil delivery assembly is also provided with an oil scraping assembly, which can scrape oil from the cavity wall in the oil storage barrel during the return and reset process of the automatic oil delivery assembly; The filter comprises a filter cartridge and inlet and outlet pipes respectively arranged at the upper and lower ends of the filter cartridge, the inlet and outlet pipes being threadedly connected to the oil storage barrel and the oil inlet hole respectively, the inner cavity of the filter cartridge is symmetrically arranged with magnet blocks, and the inner cavity of the filter cartridge is provided with a filter screen below the magnet blocks; The automatic oil delivery assembly includes an oil delivery piston and a push spring. The oil delivery piston is slidably connected to the inner cavity of the oil storage barrel. The push spring is fixedly connected to the oil delivery piston and the cavity wall of the oil storage barrel respectively. The push spring is initially in a compressed state. The pullback assembly includes a base plate fixedly mounted on the oil storage barrel, a drive motor, a reel mounted on the output shaft of the drive motor, a connecting rope fixedly connected to the drive motor, and a signal transmission module arranged on the base plate. The drive motor is fixedly mounted on the base plate, and the end of the connecting rope away from the drive motor is fixedly connected to the oil delivery piston. A trigger assembly is provided at the bottom of the cavity of the oil storage barrel near the oil inlet hole. When the oil delivery piston reaches its maximum stroke, it contacts the trigger assembly, at which time the drive motor is started and the signal transmission module sends a signal. The trigger assembly includes a travel switch arranged at the bottom of the oil storage barrel cavity and a trigger head arranged on the oil delivery piston. The travel switch is electrically connected to the drive motor and the signal transmission module through a connecting line.

2. The planetary gearbox with automatic lubricant replenishment according to claim 1, characterized in that: The driving motor is fixedly connected to the base plate through a vertical plate, a protective shell is provided at the edge of the base plate, a socket is provided on the protective shell, the socket is electrically connected to the driving motor and the signal transmission module, the connecting wire is electrically connected to the socket in a pluggable manner, and a cover sleeve is threadedly connected to one end of the protective shell.

3. The planetary gearbox with automatic lubricant replenishment according to claim 1, characterized in that: The oil scraper assembly includes an oil scraper ring, which is fixedly connected to the end surface of the oil feeding piston through a mounting shaft.

4. The planetary gearbox with automatic lubricant replenishment according to claim 3, characterized in that: The oil scraper ring includes an annular body fixed to the mounting shaft, the edge of the annular body away from the end face of the oil feeding piston is provided with a rounded corner, and the end face of the annular body close to the oil feeding piston is provided with an annular inclined surface.

5. The planetary gearbox with automatic lubricant replenishment according to claim 1, characterized in that: The oil storage barrel is threadedly connected with an oil port plug, a central portion of the oil storage barrel is provided with an annular groove, and the planetary gear reducer housing is clamped and connected to the annular groove via a reinforcing hoop.

6. The planetary gearbox with automatic lubricant replenishment according to claim 5, characterized in that: A connecting block is fixedly connected to the lower surface of the oil storage barrel, and a cushion block is sleeved on the lower part of the connecting block. The cushion block is made of elastic material.

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