CN116357679B - Lubricating and driving oil system of hydraulic loader - Google Patents

Lubricating and driving oil system of hydraulic loader Download PDF

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Publication number
CN116357679B
CN116357679B CN202310295576.4A CN202310295576A CN116357679B CN 116357679 B CN116357679 B CN 116357679B CN 202310295576 A CN202310295576 A CN 202310295576A CN 116357679 B CN116357679 B CN 116357679B
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China
Prior art keywords
oil
bearing
transmission shaft
lubricating
driving
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CN202310295576.4A
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Chinese (zh)
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CN116357679A (en
Inventor
蒋立冬
常山
岳彦炯
傅琳
王志强
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703th Research Institute of CSIC
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703th Research Institute of CSIC
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Priority to CN202310295576.4A priority Critical patent/CN116357679B/en
Publication of CN116357679A publication Critical patent/CN116357679A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6681—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
    • F16N7/385—Central lubrication systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N2210/00—Applications
    • F16N2210/12—Gearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N2210/00—Applications
    • F16N2210/14—Bearings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

A lubrication and driving oil system of a hydraulic loader relates to an oil circuit system. The invention aims to solve the problems of complex structure and poor operation reliability of the existing hydraulic loader. The locating ring is sleeved on the transmission shaft, the pushing shaft is sleeved on the first bearing and the third bearing, the second bearing is sleeved on the pushing shaft, the bearing seat is sleeved on the second bearing, the driving oil cavity I and the driving oil cavity II are arranged on the transmission shaft and used for driving the transmission shaft to rotate, the spiral floating cylinder is sleeved on the pushing shaft, one end of the spiral floating cylinder is connected with the pushing shaft, the other end of the spiral floating cylinder is connected with the double-layer spiral teeth, and the lubrication system is arranged on the bearing seat, the transmission shaft and the locating ring and used for realizing lubrication of the first bearing, the second bearing and the third bearing on the transmission shaft; the driving loading system is arranged on the transmission shaft and provides driving power for the driving oil cavity I and the driving oil cavity II respectively. The invention is used for multi-oil-way high-low pressure oil supply in transmission shafts of a hydraulic loader, a gear box and the like.

Description

Lubricating and driving oil system of hydraulic loader
Technical Field
The invention relates to a lubrication and driving oil system, in particular to a lubrication and driving oil system of a hydraulic loader, which realizes the lubrication and driving loading functions of the hydraulic loader and is used for supplying oil to multiple oil paths in transmission shafts such as the hydraulic loader, a gear box and the like at high and low pressure.
Background
In general, rotating equipment such as an engine, a steam turbine, a gear box and the like needs a lubrication system to lubricate a friction pair. The lubricating system has the functions of continuously conveying lubricating oil with proper quantity and proper temperature to the friction surfaces of all transmission parts when the rotating equipment works, forming an oil film between the friction surfaces, and realizing liquid friction, thereby reducing friction resistance, reducing power consumption and reducing abrasion so as to achieve the aim of improving the working reliability and durability of the rotating equipment.
The hydraulic transmission system is used for transmitting energy through the change of the hydraulic pressure energy, and the hydraulic pressure energy is converted into mechanical energy by means of the hydraulic executive component through the transmission of the pipeline, so that the working mechanism is driven, and the linear motion and the rotary motion are realized.
The hydraulic loader is a device which is driven by hydraulic pressure and converts the hydraulic pressure energy into required torque through rotary motion, and is a core device in a closed test system. The common hydraulic loader is integrated with a lubrication system and a hydraulic transmission system, so that the lubrication system is required to lubricate rotating parts of the hydraulic loader, and the hydraulic transmission system is required to provide driving force for the hydraulic loader to realize loading.
The existing hydraulic loader, such as the hydraulic loader with the publication number of CN205209767U and the patent name of the hydraulic loader for a bidirectional thrust oil lubrication bearing test bed, is characterized in that the existing follow-up oil cylinder is split into eight evenly distributed thrust tiles, each thrust tile is connected with the loading oil cylinder by adopting a ball bearing support, a follow-up oil path is divided into eight parts, the positions of the thrust tiles are limited by adopting hanging pins, so that a thrust disc can freely incline on the ball bearing support, and even if deflection is found axially, the gap between the thrust tile and the thrust disc is unchanged, and the pressure of each point is unchanged. The hydraulic loader of the patent is used for applying axial force to the thrust oil lubrication bearing, and the movement direction is axial linear movement. The lubrication and driving loading functions of the hydraulic loader cannot be realized at the same time, and the hydraulic loader is complex in structure and poor in operation reliability.
Disclosure of Invention
The invention aims to solve the problems of complex structure and poor operation reliability of the existing hydraulic loader. Further provided is a hydraulic loader lubrication and drive oil system.
The technical scheme of the invention is as follows: the hydraulic loader lubrication and driving oil system comprises a transmission shaft, a first bearing, a positioning ring, a pushing shaft, a second bearing, a bearing seat, a third bearing, a spiral floating cylinder, a driving oil cavity I, a driving oil cavity II, double-layer spiral teeth, a driving loading system and a lubrication system, wherein the first bearing and the third bearing are respectively sleeved on the transmission shaft, the positioning ring is positioned between the first bearing and the third bearing, the pushing shaft is sleeved on the first bearing and the third bearing, the second bearing is sleeved on the pushing shaft, the bearing seat is sleeved on the second bearing, the driving oil cavity I and the driving oil cavity II are arranged on the transmission shaft and used for driving the transmission shaft to rotate, one end of the spiral floating cylinder is connected with the pushing shaft, the other end of the spiral floating cylinder is connected with the double-layer spiral teeth sleeved on the transmission shaft, the lubrication system is arranged on the bearing seat, the transmission shaft and the positioning ring, so that the lubrication of the first bearing, the second bearing and the third bearing on the transmission shaft is realized, the driving loading system is arranged on the transmission shaft and provides driving power for the driving oil cavity I and the driving oil cavity II respectively.
Further, two first internal teeth are machined on the inner side wall of the spiral floating cylinder, first external teeth are machined on the outer circumference of the pushing shaft, and the first external teeth are meshed with one first internal tooth on the spiral floating cylinder.
Further, the driving oil cavity II comprises a sliding ring, a sealing ring and a piston ring, the sliding ring and the piston ring are sequentially sleeved on the transmission shaft from left to right, the sealing ring is arranged between the sliding ring and the piston ring, and a second cavity is formed in the enclosing area of the sliding ring, the piston ring, the transmission shaft and the sealing ring.
Further, the driving oil cavity II further comprises a first bolt, the first bolt is connected with the sealing ring, the piston ring and the double-layer spiral teeth respectively, second external teeth on the outer circumferential surface of the double-layer spiral teeth are meshed with another first internal teeth on the spiral floating cylinder, second internal teeth are machined on the inner side wall of the double-layer spiral teeth, and the second internal teeth are meshed with third external teeth on the transmission shaft.
Further, the driving oil cavity I comprises a pressure ring and a second bolt, the pressure ring is arranged on the shoulder of the transmission shaft through the second bolt, the pressure ring is positioned in the double-layer spiral tooth, and the surrounding area of the piston ring, the pressure ring and the transmission shaft forms a first cavity.
Further, the driving loading system comprises a first oil way and a third oil way, the first oil way and the third oil way are both arranged on the transmission shaft, the first oil way provides driving power for the driving oil cavity I, and the third oil way provides driving power for the driving oil cavity II.
Further, the first oil circuit includes first dynamic horizontal oil circuit and first dynamic vertical oil circuit, and first dynamic horizontal oil circuit level is seted up on the transmission shaft, and first dynamic vertical oil circuit radially sets up on the transmission shaft, and the one end and the first dynamic horizontal oil circuit intercommunication of first dynamic vertical oil circuit, the other end and the first cavity intercommunication of first dynamic vertical oil circuit.
Further, the third oil way comprises a third dynamic horizontal oil way and a third dynamic vertical oil way, the third dynamic horizontal oil way is horizontally arranged on the transmission shaft, the third dynamic vertical oil way is radially arranged on the transmission shaft, one end of the third dynamic vertical oil way is communicated with the third dynamic horizontal oil way, and the other end of the third dynamic vertical oil way is communicated with the second cavity.
Further, the lubrication system comprises a second oil way and a fourth oil way, wherein the second oil way is arranged on the transmission shaft and provides lubrication for the first bearing and the third bearing, the fourth oil way is arranged on the bearing seat, and the fourth lubrication oil way on the bearing seat directly provides lubrication oil for the second bearing.
Further, the second oil way comprises a first lubricating horizontal oil way, a second lubricating vertical oil way, a third lubricating horizontal oil way, a fourth lubricating vertical oil way, a fifth lubricating horizontal oil way, a sixth lubricating vertical oil way and a seventh lubricating horizontal oil way, the first lubricating horizontal oil way is horizontally arranged on the transmission shaft, the second lubricating vertical oil way is radially arranged on the transmission shaft, and the second lubricating vertical oil way is communicated with the first lubricating horizontal oil way and provides lubricating oil for the lubricating bearing; the third lubricating oil way is arranged on the transmission shaft, the third lubricating oil way is communicated with the first lubricating oil way, the fourth lubricating oil way is radially arranged on the transmission shaft, the fourth lubricating oil way is communicated with the third lubricating oil way, the fourth lubricating oil way is connected with the positioning ring and the region between the transmission shaft, wherein the region between the positioning ring and the transmission shaft is the fifth lubricating oil way, an oil port is arranged on the positioning ring and is the sixth lubricating oil way, the region between the positioning ring and the pushing shaft is the seventh lubricating oil way, and the seventh lubricating oil way is used for supplying oil to the surrounding region between the first bearing and the third bearing.
Compared with the prior art, the invention has the following effects:
1. the invention relates to a system integrating lubrication and driving of a hydraulic loader, wherein the driving system comprises 2 oil ways, and high-pressure oil enters a driving oil cavity I and a driving oil cavity II through the two oil ways respectively, so that the function of driving and loading of the hydraulic loader is realized. The lubrication system comprises 2 oil ways, and the lubricating oil is sent to each bearing through the 2 oil ways, so that the lubrication function of the bearings is realized. The hydraulic loader oil system has the advantages that the whole structure is simple, new structural characteristics are not added, the driving function is realized, meanwhile, all components are lubricated, the difficulty that the lubrication and the driving loading are realized at the same time in the hydraulic loader oil system is effectively solved, and the normal and stable operation of the hydraulic loader is ensured.
2. The hydraulic loader of the invention is used for applying a rotation torque to test equipment, and the movement direction is rotation around the axial direction. The design of the oil circuit is thus quite different. The invention aims to realize the lubrication and driving loading functions of a hydraulic loader, solves the problem of realizing lubrication and driving loading simultaneously in an oil system of the hydraulic loader, and further provides the lubrication and driving oil system of the hydraulic loader.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The first embodiment is as follows: referring to fig. 1, the lubrication and driving oil system of the hydraulic loader of the present embodiment includes a transmission shaft 1, it further includes a first bearing 2, a positioning ring 3, a pushing shaft 4, a second bearing 5, a bearing seat 6, a third bearing 7, a spiral floating cylinder 10, a driving oil cavity I, a driving oil cavity ii, double-layer helical teeth 17, a driving loading system and a lubrication system, the first bearing 2 and the third bearing 7 are respectively sleeved on the transmission shaft 1, the positioning ring 3 is sleeved on the transmission shaft 1, and the positioning ring 3 is located between the first bearing 2 and the third bearing 7, the pushing shaft 4 is sleeved on the first bearing 2 and the third bearing 7, the second bearing 5 is sleeved on the pushing shaft 4, the bearing seat 6 is sleeved on the second bearing 5, the driving oil cavity I and the driving oil cavity ii are mounted on the transmission shaft 1 for driving the rotation of the transmission shaft 1, the spiral floating cylinder 10 is sleeved on the pushing shaft 4, one end of the spiral floating cylinder 10 is connected with the pushing shaft 4, the other end of the spiral floating cylinder 10 is connected with the double-layer helical teeth 17 sleeved on the transmission shaft 1, the lubrication system is arranged on the bearing seat 6, the transmission shaft 1 and the positioning ring 3 is sleeved on the first bearing 1 and the third bearing 1, the driving oil cavity is provided on the driving oil cavity 1, and the driving oil cavity is provided by the driving oil cavity 1 and the driving system is provided on the driving shaft 1.
The second embodiment is as follows: in the present embodiment, two first internal teeth are formed on the inner wall of the spiral floating cylinder 10, and first external teeth are formed on the outer circumference of the push shaft 4, and the first external teeth mesh with one first internal tooth on the spiral floating cylinder 10, as described with reference to fig. 1.
So set up, be convenient for go out the transmission that power does not have the loss. Other compositions and connection relationships are the same as those of the first embodiment.
And a third specific embodiment: the driving oil chamber ii of the present embodiment includes the slip ring 11, the seal ring 13, and the piston ring 14, the slip ring 11 and the piston ring 14 are sequentially sleeved on the transmission shaft 1 from left to right, the seal ring 13 is installed between the slip ring 11 and the piston ring 14, and the second cavity is formed by the enclosed areas of the slip ring 11, the piston ring 14, the transmission shaft 1, and the seal ring 13. Other compositions and connection relationships are the same as those of the first or second embodiment.
The specific embodiment IV is as follows: the driving oil chamber ii of the present embodiment is described with reference to fig. 1, and further includes a first bolt 12, the first bolt 12 being connected to the seal ring 13, the piston ring 14, and the double-layered helical tooth 17, respectively, second external teeth on the outer circumferential surface of the double-layered helical tooth 17 being meshed with another first internal teeth on the helical floating cylinder 10, second internal teeth being processed on the inner side wall of the double-layered helical tooth 17, the second internal teeth being meshed with third external teeth on the propeller shaft 1.
The arrangement is simple and reliable in connection. Other compositions and connection relationships are the same as those of the first, second or third embodiments.
Fifth embodiment: the driving oil chamber I of the present embodiment includes a pressure ring 15 and a second bolt 16, the pressure ring 15 is mounted on the shoulder of the transmission shaft 1 by the second bolt 16, and the pressure ring 15 is located in a double-layer helical tooth 17, and the enclosed areas of the piston ring 14, the pressure ring 15 and the transmission shaft 1 form a first cavity, as described in connection with fig. 1. Other compositions and connection relationships are the same as those of the first, second, third or fourth embodiments.
Specific embodiment six: referring to fig. 1, the driving loading system of the present embodiment includes a first oil path a and a third oil path C, where the first oil path a and the third oil path C are both disposed on the transmission shaft 1, and the first oil path a provides driving power for the driving oil chamber I, and the third oil path C provides driving power for the driving oil chamber ii.
So arranged, it is convenient to provide sufficient driving power. Other compositions and connection relationships are the same as those of the first, second, third, fourth or fifth embodiments.
Seventh embodiment: referring to fig. 1, the first oil path a of the present embodiment includes a first dynamic horizontal oil path A1 and a first dynamic vertical oil path A2, where the first dynamic horizontal oil path A1 is horizontally disposed on the transmission shaft 1, the first dynamic vertical oil path A2 is radially disposed on the transmission shaft 1, and one end of the first dynamic vertical oil path A2 is communicated with the first dynamic horizontal oil path A1, and the other end of the first dynamic vertical oil path A2 is communicated with the first cavity.
So set up, whole oil circuit is offered on transmission shaft 1, compact structure. Other compositions and connection relationships are the same as those of the first, second, third, fourth, fifth or sixth embodiments.
Eighth embodiment: referring to fig. 1, a third oil path C of the present embodiment includes a third horizontal oil path C1 and a third vertical oil path C2, the third horizontal oil path C1 is horizontally opened on the transmission shaft 1, the third vertical oil path C2 is radially opened on the transmission shaft 1, and one end of the third vertical oil path C2 is communicated with the third horizontal oil path C1, and the other end of the third vertical oil path C2 is communicated with the second cavity.
The oil way is simple in structure, convenient to produce and manufacture, and capable of directly transmitting driving power to avoid energy loss. Other compositions and connection relationships are the same as those in any one of the first to seventh embodiments.
Detailed description nine: the lubrication system of the present embodiment includes a second oil path B and a fourth oil path D, where the second oil path B is opened on the transmission shaft 1 and provides lubrication for the first bearing 2 and the third bearing 7, the fourth oil path D is opened on the bearing seat 6, and the fourth lubrication oil path D1 on the bearing seat 6 directly provides lubrication for the second bearing 5.
So set up, whole lubricating system does not have unnecessary component, increases lubricated effect, and then guarantees the highly stable operation of transmission axle. Other compositions and connection relationships are the same as those in any one of the first to eighth embodiments.
Detailed description ten: the second oil passage B of the present embodiment includes the lubrication first horizontal oil passage B1, the lubrication second vertical oil passage B2, the lubrication third horizontal oil passage B3, the lubrication fourth vertical oil passage B4, the lubrication fifth horizontal oil passage B5, the lubrication sixth vertical oil passage B6 and the lubrication seventh horizontal oil passage B7,
the first lubrication oil way B1 is horizontally arranged on the transmission shaft 1, the second lubrication oil way B2 is vertically arranged on the transmission shaft 1, and the second lubrication oil way B2 is communicated with the first lubrication oil way B1 and provides lubrication oil for the lubrication bearing 20;
the third lubricating horizontal oil way B3 is arranged on the transmission shaft 1, the third lubricating horizontal oil way B3 is communicated with the first lubricating horizontal oil way B1, the fourth lubricating vertical oil way B4 is radially arranged on the transmission shaft 1, the fourth lubricating vertical oil way B4 is communicated with the third lubricating horizontal oil way B3, the fourth lubricating vertical oil way B4 is connected with a region between the positioning ring 3 and the transmission shaft 1, the region between the positioning ring 3 and the transmission shaft 1 is the fifth lubricating horizontal oil way B5, an oil port is arranged on the positioning ring 3 and is the sixth lubricating vertical oil way B6, the region between the positioning ring 3 and the pushing shaft 4 is the seventh lubricating horizontal oil way B7, and the seventh lubricating horizontal oil way B7 is the enclosing region between the first bearing 2 and the third bearing 7 for oil supply.
So set up, be convenient for lubricate simultaneously two bearings, lubrication effect is good. Other compositions and connection relationships are the same as in any one of the first to ninth embodiments.
The principle of the invention is explained in connection with fig. 1:
the specific structure of the hydraulic loader lubrication and driving oil system mainly comprises a transmission shaft 1, a first bearing 2, a positioning ring 3, a thrust shaft 4, a second bearing 5, a bearing seat 6, a third bearing 7, a baffle plate 8, a bolt 9, a spiral floating cylinder 10, a slip ring 11, a bolt 12, a sealing ring 13, a piston ring 14, a pressure ring 15, a bolt 16, double-layer spiral teeth 17, a bolt 18, a baffle plate 19, a bearing 20 and other parts.
The driving oil cavity I comprises a pressure ring 15 and a second bolt 16, the pressure ring 15 is mounted on the shoulder of the transmission shaft 1 through the second bolt 16, the pressure ring 15 is positioned in the double-layer helical tooth 17, and the surrounding area of the piston ring 14, the pressure ring 15 and the transmission shaft 1 forms a first cavity.
The driving oil cavity II comprises a slip ring 11, a sealing ring 13 and a piston ring 14, wherein the slip ring 11 and the piston ring 14 are sleeved on the transmission shaft 1 from left to right in sequence, the sealing ring 13 is arranged between the slip ring 11 and the piston ring 14, and a second cavity is formed by the surrounding areas of the slip ring 11, the piston ring 14, the transmission shaft 1 and the sealing ring 13.
The transmission shaft 1 is internally provided with a first oil way A, a second oil way B and a third oil way C, wherein the first oil way A and the third oil way C are driving oil ways, and the second oil way B is a lubricating oil way.
The driving loading system comprises a first oil way A and a third oil way C, and high-pressure oil enters the driving oil cavity I through the first oil way A; the high-pressure oil enters the driving oil cavity II through the third oil way C, and the driving loading function of the hydraulic loader is realized by adjusting the pressure of the high-pressure oil entering the driving oil cavity I and the driving oil cavity II.
The lubrication system includes a second oil passage B and a fourth oil passage D in which lubricating oil lubricates the bearing 20 by lubricating the first horizontal oil passage B1 and lubricating the second vertical oil passage B2, lubricates the first bearing 2 and the third bearing 7 by lubricating the first horizontal oil passage B1, lubricating the third horizontal oil passage B3, lubricating the fourth vertical oil passage B4, lubricating the fifth horizontal oil passage B5, lubricating the sixth vertical oil passage B6, and lubricating the seventh horizontal oil passage B7; the oil path D is only provided with a fourth lubricating oil path D1, and the lubricating oil directly lubricates the second bearing 5 through the fourth lubricating oil path D1, so that the lubricating function of all bearings is realized.
While the invention has been described with reference to the preferred embodiments, it is not intended to limit the invention, but rather to cover various modifications which may be made by those skilled in the art without departing from the spirit of the invention.

Claims (8)

1. A hydraulic loader lubrication and drive oil system comprising a drive shaft (1), characterized in that: the device also comprises a first bearing (2), a positioning ring (3), a pushing shaft (4), a second bearing (5), a bearing seat (6), a third bearing (7), a spiral floating cylinder (10), a driving oil cavity I, a driving oil cavity II, a double-layer spiral tooth (17), a driving loading system and a lubricating system, wherein the first bearing (2) and the third bearing (7) are respectively sleeved on a transmission shaft (1), the positioning ring (3) is sleeved on the transmission shaft (1), the positioning ring (3) is positioned between the first bearing (2) and the third bearing (7), the pushing shaft (4) is sleeved on the first bearing (2) and the third bearing (7), the second bearing (5) is sleeved on the pushing shaft (4), the bearing seat (6) is sleeved on the second bearing (5), the driving oil cavity I and the driving oil cavity II are arranged on the transmission shaft (1) and used for driving the transmission shaft (1) to rotate, the spiral floating cylinder (10) is sleeved on the pushing shaft (4), one end of the spiral floating cylinder (10) is connected with the pushing shaft (4), the other end of the spiral floating cylinder (10) is sleeved on the double-layer spiral tooth (17) and the spiral bearing seat (7) is arranged on the transmission shaft (1), the lubrication of a first bearing (2), a second bearing (5) and a third bearing (7) on the transmission shaft (1) is realized, and a driving loading system is arranged on the transmission shaft (1) and provides driving power for a driving oil cavity I and a driving oil cavity II respectively;
the driving loading system comprises a first oil way (A) and a third oil way (C), wherein the first oil way (A) and the third oil way (C) are both arranged on the transmission shaft (1), the first oil way (A) provides driving power for the driving oil cavity I, and the third oil way (C) provides driving power for the driving oil cavity II;
the lubrication system comprises a second oil way (B) and a fourth oil way (D), wherein the second oil way (B) is arranged on the transmission shaft (1) and provides lubrication for the first bearing (2) and the third bearing (7), the fourth oil way (D) is arranged on the bearing seat (6), and the fourth lubrication oil way (D1) on the bearing seat (6) directly provides lubrication oil for the second bearing (5).
2. A hydraulic loader lubrication and drive oil system according to claim 1, wherein: two first internal teeth are machined on the inner side wall of the spiral floating cylinder (10), first external teeth are machined on the outer circumference of the pushing shaft (4), and the first external teeth are meshed with one first internal tooth on the spiral floating cylinder (10).
3. A hydraulic loader lubrication and drive oil system according to claim 2, wherein: the driving oil cavity II comprises a slip ring (11), a sealing ring (13) and a piston ring (14), wherein the slip ring (11) and the piston ring (14) are sequentially sleeved on the transmission shaft (1) from left to right, the sealing ring (13) is arranged between the slip ring (11) and the piston ring (14), and a second cavity is formed in the enclosing area of the slip ring (11), the piston ring (14), the transmission shaft (1) and the sealing ring (13).
4. A hydraulic loader lubrication and drive oil system according to claim 3, wherein: the driving oil cavity II further comprises a first bolt (12), the first bolt (12) is respectively connected with the sealing ring (13), the piston ring (14) and the double-layer spiral teeth (17), second external teeth on the outer circumferential surface of the double-layer spiral teeth (17) are meshed with the other first internal teeth on the spiral floating cylinder (10), second internal teeth are machined on the inner side wall of the double-layer spiral teeth (17), and the second internal teeth are meshed with third external teeth on the transmission shaft (1).
5. A hydraulic loader lubrication and drive oil system according to claim 4, wherein: the driving oil cavity I comprises a pressure ring (15) and a second bolt (16), the pressure ring (15) is arranged on the shoulder of the transmission shaft (1) through the second bolt (16), the pressure ring (15) is positioned in the double-layer spiral tooth (17), and a first cavity is formed by the piston ring (14), the pressure ring (15) and the enclosing area of the transmission shaft (1).
6. A hydraulic loader lubrication and drive oil system according to claim 5, wherein: the first oil circuit (A) comprises a first dynamic horizontal oil circuit (A1) and a first dynamic vertical oil circuit (A2), the first dynamic horizontal oil circuit (A1) is horizontally arranged on the transmission shaft (1), the first dynamic vertical oil circuit (A2) is radially arranged on the transmission shaft (1), one end of the first dynamic vertical oil circuit (A2) is communicated with the first dynamic horizontal oil circuit (A1), and the other end of the first dynamic vertical oil circuit (A2) is communicated with the first cavity.
7. The hydraulic loader lubrication and drive oil system of claim 6, wherein: the third oil way (C) comprises a third dynamic horizontal oil way (C1) and a third dynamic vertical oil way (C2), the third dynamic horizontal oil way (C1) is horizontally arranged on the transmission shaft (1), the third dynamic vertical oil way (C2) is radially arranged on the transmission shaft (1), one end of the third dynamic vertical oil way (C2) is communicated with the third dynamic horizontal oil way (C1), and the other end of the third dynamic vertical oil way (C2) is communicated with the second cavity.
8. A hydraulic loader lubrication and drive oil system according to claim 7, wherein: the second oil path (B) comprises a first lubricating horizontal oil path (B1), a second lubricating vertical oil path (B2), a third lubricating horizontal oil path (B3), a fourth lubricating vertical oil path (B4), a fifth lubricating horizontal oil path (B5), a sixth lubricating vertical oil path (B6) and a seventh lubricating horizontal oil path (B7),
the first lubricating oil way (B1) is horizontally arranged on the transmission shaft (1), the second lubricating oil way (B2) is radially arranged on the transmission shaft (1), and the second lubricating oil way (B2) is communicated with the first lubricating oil way (B1) and provides lubricating oil for the lubricating bearing (20);
the third lubricating oil way (B3) is arranged on the transmission shaft (1), the third lubricating oil way (B3) is communicated with the first lubricating oil way (B1), the fourth lubricating oil way (B4) is vertically arranged on the transmission shaft (1), the fourth lubricating oil way (B4) is communicated with the third lubricating oil way (B3), the fourth lubricating oil way (B4) is connected with the positioning ring (3) and the transmission shaft (1) in an area between the positioning ring (3) and the transmission shaft (1), the fifth lubricating oil way (B5) is arranged in an area between the positioning ring (3), the oil port is arranged on the positioning ring (3) and is used for lubricating the sixth lubricating oil way (B6), the seventh lubricating oil way (B7) is arranged in an area between the positioning ring (3) and the pushing shaft (4), and the oil supply is carried out in an enclosed area between the first bearing (2) and the third bearing (7).
CN202310295576.4A 2023-03-23 2023-03-23 Lubricating and driving oil system of hydraulic loader Active CN116357679B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003085815A2 (en) * 2002-04-05 2003-10-16 Tma Técnica Em Mecânica Avancada Ltda. Progressive hydrokinetic energy converter
JP2004270798A (en) * 2003-03-07 2004-09-30 Yanmar Agricult Equip Co Ltd Hydraulic pto clutch structure and transmission
CN205209767U (en) * 2015-11-26 2016-05-04 湖南崇德工业科技有限公司 Two -way thrust oil -lubricated bearing test bench hydraulic pressure loader
CN106289782A (en) * 2016-10-20 2017-01-04 哈尔滨理工大学 A kind of Thrust Bearing Test Rig hydraulic loading device
CN108916626A (en) * 2017-12-25 2018-11-30 辽宁三三工业有限公司 A kind of lubricating system and method
CN215108895U (en) * 2021-06-30 2021-12-10 山西晟特恒采矿工程机械有限公司 Cross axle cutting drum with interior spraying structure
CN115468102A (en) * 2022-10-10 2022-12-13 中联重科股份有限公司 Lubricating system and engineering machinery

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003085815A2 (en) * 2002-04-05 2003-10-16 Tma Técnica Em Mecânica Avancada Ltda. Progressive hydrokinetic energy converter
JP2004270798A (en) * 2003-03-07 2004-09-30 Yanmar Agricult Equip Co Ltd Hydraulic pto clutch structure and transmission
CN205209767U (en) * 2015-11-26 2016-05-04 湖南崇德工业科技有限公司 Two -way thrust oil -lubricated bearing test bench hydraulic pressure loader
CN106289782A (en) * 2016-10-20 2017-01-04 哈尔滨理工大学 A kind of Thrust Bearing Test Rig hydraulic loading device
CN108916626A (en) * 2017-12-25 2018-11-30 辽宁三三工业有限公司 A kind of lubricating system and method
CN215108895U (en) * 2021-06-30 2021-12-10 山西晟特恒采矿工程机械有限公司 Cross axle cutting drum with interior spraying structure
CN115468102A (en) * 2022-10-10 2022-12-13 中联重科股份有限公司 Lubricating system and engineering machinery

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