A hydraulic oil tank for a hydraulic transmission system

Abstract

The present invention relates to the technical field of hydraulic oil tanks, and discloses a hydraulic oil tank for a hydraulic transmission system, comprising an oil storage tank, an oil suction device and an oil return pipe arranged on the top of the oil storage tank, a partition plate arranged in the oil storage tank, and the oil storage tank is divided into an oil supply area and a transfer area by the partition plate, the lower end of the oil suction device extends into the oil supply area, a heating unit and a de-impurity unit are arranged in the transfer area, and the heating unit and the de-impurity unit are connected in a transmission manner; the heating unit comprises a motor arranged at the outer bottom of the oil storage tank, a rotating shaft arranged at the output end of the motor, a heating component arranged on the rotating shaft, and a mixing component arranged on the heating component, and the rotating shaft seal passes through the bottom of the oil storage tank and is rotatably arranged, and the heating component and the mixing component are both arranged in the oil storage tank. The hydraulic oil tank for a hydraulic transmission system prevents the lubricating oil in the hydraulic oil tank from solidifying at a low temperature and affecting the normal use of the entire hydraulic transmission system by heating the lubricating oil in the hydraulic oil tank.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic oil tanks, and in particular to a hydraulic oil tank used in a hydraulic transmission system. Background Art

[0002] The multi-directional forging hydraulic press is mainly used for closed multi-directional die forging of valve body forgings. There are extrusion cylinders in the vertical up and down and horizontal left and right directions. The material is formed by multi-directional composite extrusion, with high material utilization, less flash, and reasonable streamline distribution of the product, which helps to improve the mechanical properties. After multi-directional extrusion, the metal has good plasticity, which solves the problem of difficult forming of complex products.

[0003] Among them, the hydraulic transmission system is one of the core components of the multi-directional forging hydraulic press. It can transfer energy to the hydraulic oil through components such as hydraulic cylinders, hydraulic pumps, valves, and hydraulic oil tanks, thereby realizing motion control and force transmission of the multi-directional forging hydraulic press.

[0004] However, when the hydraulic oil tank is used in winter, especially in high-latitude areas, the hydraulic oil in the hydraulic oil tank will be affected by the low temperature and will experience a certain degree of coagulation, which will make the hydraulic oil more viscous and have poor fluidity, affecting the lubrication and working efficiency of various components of the hydraulic system, and even causing the system to fail to start or work normally; the increased viscosity of the hydraulic oil will cause the system to require greater pressure to make the oil flow at startup, increasing the load on the pump and other system components; and in a low temperature environment, the hydraulic pump faces greater resistance at startup, making it more difficult to start the pump and easily causing overload and damage to the pump; due to the decreased fluidity of the hydraulic oil, the friction between the various components in the system increases, which may lead to premature wear of the components, affecting the life and stability of the hydraulic transmission system, and causing losses to the company. Summary of the invention

[0005] In view of the problem in the prior art that the hydraulic oil in the hydraulic oil tank in winter solidifies due to the low temperature, which affects the life and stability of the hydraulic transmission system, a hydraulic oil tank for a hydraulic transmission system is proposed.

[0006] The present application provides a hydraulic oil tank for a hydraulic transmission system, the purpose of which is to heat the hydraulic oil in the hydraulic oil tank to prevent the hydraulic oil from solidifying.

[0007] The technical solution of the present invention is: a hydraulic oil tank for a hydraulic transmission system, comprising an oil storage tank, an oil suction device and an oil return pipe arranged on the top of the oil storage tank, a partition is arranged in the oil storage tank, and the oil storage tank is divided into an oil supply area and a transfer area by the partition, the lower end of the oil suction device extends into the oil supply area, a heating unit and a dust removal unit are arranged in the transfer area, and the heating unit and the dust removal unit are in transmission connection;

[0008] The heating unit comprises a motor disposed at the outer bottom of the oil storage tank, a rotating shaft disposed at the output end of the motor, a heating component disposed on the rotating shaft, and a mixing component disposed on the heating component. The rotating shaft seal passes through and rotates at the bottom of the oil storage tank. The heating component and the mixing component are both disposed in the oil storage tank.

[0009] The heating component includes a plurality of support frames arranged in an array along the vertical direction on the shaft wall of the rotating shaft, a heat-conducting main ring arranged on the support frame, a heat-conducting tube sleeved on the outside of the rotating shaft, a plurality of heat-conducting secondary rings arranged in an array along the vertical direction on the inner tube wall of the heat-conducting tube, a plurality of friction main blocks arranged in an annular array at the lower end of the heat-conducting main ring, a plurality of friction secondary blocks arranged in an annular array at the upper end of the heat-conducting secondary ring, and a lifting assembly arranged between the bottom of the oil storage tank and the bottom of the heat-conducting tube, and the heat-conducting tube is arranged on the mixing component.

[0010] Furthermore, the main friction block and the secondary friction block are arranged correspondingly, the wall of the heat-conducting tube is hollowed out, and a plurality of operation ports are arranged in an annular shape on the wall of the heat-conducting tube.

[0011] Furthermore, the heating component also includes a plurality of heat-conducting strips evenly and equidistantly distributed on the outer wall of the heat-conducting tube, the heat-conducting strips include two transverse plates and an inclined plate arranged between the two transverse plates, the transverse plates and the inclined plates are integrally stamped and formed, and the angle between the inclined plate and the transverse plate is 140-160°.

[0012] Furthermore, the lifting assembly includes a discharge port arranged in a circular array at the bottom of the oil storage tank with the rotating shaft as the center, a support block arranged in the discharge port, a limit tube arranged on the support block, a limit rod arranged between the limit tube and the heat conducting tube, and a reset member arranged between the limit tube and the heat conducting tube.

[0013] Furthermore, the mixing component includes a bearing arranged on the outer wall of the heat-conducting cylinder, a plurality of arc-shaped drive plates arranged in a circular array on the outer ring wall of the bearing, a plurality of drive blocks arranged on the bottom of the oil storage tank, a V-shaped drive groove arranged on the outer side of the drive plate, and a mixing assembly arranged on the drive block, and one end of the drive block is inserted into the corresponding drive groove.

[0014] Furthermore, the hybrid assembly includes a driving bar disposed on the driving block, and a hybrid mesh plate disposed at the other end of the driving bar.

[0015] Furthermore, the impurity removal unit includes a support tube obliquely arranged on the inner wall of the oil storage tank, an oil guide tube arranged between the support tube and the oil return pipe, a driving tube with one end sealed and rotatably arranged in the support tube, two bevel gears for transmission arranged between the rotating shaft and the driving tube, a magnetic attraction component arranged between the support tube and the oil guide tube, and a screening component arranged on the magnetic attraction component.

[0016] Furthermore, the magnetic suction component includes a taking port arranged on the wall of the oil tank corresponding to the position of the support tube, a taking cover arranged on the taking port, a magnetic rod arranged on the taking cover, a sleeve arranged on the magnetic rod, and spiral blades evenly and equidistantly distributed in a spiral shape on the sleeve, the starting angle between any two adjacent spiral blades is 60°, and the expansion angle of the spiral blades is 50-70°.

[0017] Furthermore, the screening assembly includes a screen cylinder arranged in a driving tube, a chassis sealed and rotatably arranged at the bottom of the screen cylinder, a brush plate arranged on a magnetic rod, bristles arranged on the brush plate, a slag trough arranged on the brush plate, and a screen arranged at the bottom of the slag trough, the chassis and the magnetic rod are detachably connected, one end of the bristles away from the brush plate is movably arranged on the inner wall of the screen cylinder, and the slag trough is located on one side of the bristles.

[0018] Beneficial effects of the present invention:

[0019] 1. The mutual friction between the main friction block and the auxiliary friction block heats the lubricating oil in the hydraulic oil tank to prevent it from solidifying at low temperatures and affecting the normal use of the entire hydraulic transmission system.

[0020] 2. While heating the lubricating oil, the driving plate performs arc-shaped reciprocating motion in the horizontal direction, thereby driving the mixing mesh plate to mix the hydraulic oil in the oil storage tank through the driving bar, and mix the lubricating oil in the hydraulic oil tank, so that the lubricating oil in the entire transfer area is fully heated, and the overall heating is more uniform and efficient.

[0021] 3. While heating the lubricating oil, the spiral blades distributed in a spiral shape increase the time for the hydraulic oil to pass through the driving pipe, and the hydraulic oil is allowed to move fully in the driving pipe, and the metal impurities in the hydraulic oil are adsorbed onto the sleeve by the magnetism of the magnetic rod 30.

[0022] 4. Apply centrifugal force to the hydraulic oil in the screen drum to throw out the hydraulic oil, while impurities remain in the screen drum. At the same time, the screen drum continues to rotate, and the impurities adhering to the inner wall of the screen drum will contact with the bristles. The impurities adhering to the inner wall of the screen drum 33 are swept into the slag trough to prevent the screen drum from being blocked and affecting the filtration efficiency of the lubricating oil. The lubricating oil in the impurities continues to be filtered out through the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 for Figure 1 Middle AA section view;

[0025] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the transfer area of ​​the present invention;

[0026] Figure 4 The schematic diagram of the positional relationship of the heat-conducting tube, the heat-conducting main ring and the heat-conducting auxiliary ring of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 5 It is a three-dimensional structural schematic diagram of the positional relationship between the heat-conducting main ring and the heat-conducting auxiliary ring of the present invention;

[0028] Figure 6 It is a three-dimensional structural schematic diagram of the positional relationship between the heat-conducting tube and the lifting assembly of the present invention;

[0029] Figure 7 The schematic diagram of the positional relationship of the heat-conducting tube, the heat-conducting main ring and the heat-conducting auxiliary ring of the present invention is shown in FIG. Figure 2 ;

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the heating unit of the present invention;

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the mixing component of the present invention;

[0032] Fig.10 It is a schematic diagram of the three-dimensional structure of the impurity removal unit of the present invention;

[0033] Fig.11 It is a schematic diagram of the internal three-dimensional structure of the driving tube and the supporting tube of the present invention;

[0034] Fig.12 It is a schematic diagram of the internal structure of the screen drum of the present invention;

[0035] Fig.13 It is a schematic diagram of the three-dimensional structure of the screening assembly of the present invention.

[0036] In the figure:

[0037] 1. Oil storage tank; 2. Oil absorber; 3. Oil return pipe; 4. Partition; 5. Motor; 6. Rotating shaft; 7. Support frame; 8. Heat conduction main ring; 9. Heat conduction tube; 10. Heat conduction secondary ring; 11. Friction main block; 12. Friction secondary block; 13. Heat conduction strip; 14. Bearing; 15. Drive plate; 16. Drive block; 17. Drive groove; 18. Support block; 19. Limit tube; 20. Limit rod; 21. Reset member; 22. Drive strip; 23. Mixing mesh plate; 24. Support tube; 25. Oil guide tube; 26. Drive tube; 27. Bevel gear; 28. Screen; 29. ​​Take-up cover; 30. Magnetic rod; 31. Casing; 32. Spiral blade; 33. Screen cylinder; 34. Chassis; 35. Brush plate; 36. Brush; 37. Slag trough. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0039] Example 1, reference Figure 1-2 , which is the first embodiment of the present invention, provides a hydraulic oil tank for a hydraulic transmission system, including an oil storage tank 1 for storing lubricating oil, an oil suction device 2 and an oil return pipe 3 installed on the top of the oil storage tank 1, a partition 4 is connected to the oil storage tank 1, and the oil storage tank 1 is divided into an oil supply area and a transfer area by the partition 4, the lower end of the oil suction device 2 extends into the oil supply area, a heating unit and a de-impurity unit are installed in the transfer area, the heating unit and the de-impurity unit are transmission-connected, and the de-impurity unit can be a filter element.

[0040] Reference Figure 3-5 The heating unit includes a motor 5 installed on the outer bottom of the oil storage tank 1, a rotating shaft 6 connected to the output end of the motor 5, a heating component installed on the rotating shaft 6, and a mixing component installed on the heating component. The rotating shaft 6 is sealed and penetrates the bottom of the oil storage tank 1 and is rotatably connected. The heating component and the mixing component are both arranged in the oil storage tank 1; the heating component includes a plurality of support frames 7 fixedly sleeved on the shaft wall of the rotating shaft 6 in an array along the vertical direction, a heat-conducting main ring 8 fixedly sleeved on the support frame 7, a heat-conducting tube 9 movably sleeved on the outer side of the rotating shaft 6, a plurality of heat-conducting secondary rings 10 connected to the inner tube wall of the heat-conducting tube 9 in an array along the vertical direction, a plurality of friction main blocks 11 detachably connected to the lower end of the heat-conducting main ring 8 in an annular array, a plurality of friction secondary blocks 12 detachably connected to the upper end of the heat-conducting secondary ring 10 in an annular array, and a lifting assembly installed between the bottom of the oil storage tank 1 and the bottom of the heat-conducting tube 9, and the heat-conducting tube 9 is installed on the mixing component.

[0041] Specifically, after the motor 5 is started, the support frame 7 is driven to rotate through the rotating shaft 6, and then the friction main block 11 is driven to rotate synchronously through the heat-conducting main ring 8. The friction main block 11 contacts the friction secondary block 12 on the heat-conducting secondary ring 10 to generate heat by friction. The generated heat is transferred to the hydraulic oil in the oil storage tank 1 through the heat-conducting main ring 8, the heat-conducting secondary ring 10 and the heat-conducting tube 9.

[0042] Reference Figure 3-5 The main friction block 11 and the secondary friction block 12 are arranged correspondingly, the wall of the heat-conducting tube 9 is hollowed out, and a plurality of operation ports are arranged in a ring-shaped manner on the wall of the heat-conducting tube 9. The heating component also includes a plurality of heat-conducting strips 13 evenly and equidistantly distributed and connected to the outer wall of the heat-conducting tube 9. The heat-conducting strips 13 include two transverse plates and an inclined plate connected between the two transverse plates. The transverse plates and the inclined plates are integrally stamped and formed, and the angle between the inclined plates and the transverse plates is 140°.

[0043] Specifically, when the friction main block 11 rotates, it contacts and rubs with the corresponding friction secondary block 12 in turn. Both the friction main block 11 and the friction secondary block 12 can be replaced through the operation port. The hollow wall of the heat-conducting tube 9 is convenient for heat conduction, and the heat-conducting strip 13 has a heat-conducting effect.

[0044] Reference Figure 4-6 The main friction block 11 and the secondary friction block 12 are both arc-shaped as a whole. The lifting assembly includes a discharge port arranged in a circular array at the bottom of the oil storage tank 1 with the rotating shaft 6 as the center, a support block 18 detachably connected to the discharge port, a limit tube 19 connected to the support block 18, a limit rod 20 arranged between the limit tube 19 and the heat-conducting tube 9, and a reset member 21 connected between the limit tube 19 and the heat-conducting tube 9. The upper end of the limit rod 20 is connected to the lower end of the heat-conducting tube 9, and the two ends of the reset member 21 are not connected to the support block 18 and the heat-conducting tube 9, but only maintain contact. The reset member 21 can be a spring. In this embodiment, the reset member 21 is in a relaxed and uncompressed state.

[0045] Specifically, when the friction main block 11 and the friction secondary block 12 are both arc-shaped as a whole and contact each other to generate heat, the friction main block 11 will exert a downward extrusion force on the friction secondary block 12. After the friction secondary block 12 is subjected to the force, it exerts a downward extrusion force on the heat-conducting tube 9. The heat-conducting tube 9 drives the limit rod 20 to descend in the limit tube 19 and squeezes the reset member 21 until the friction main block 11 and the friction secondary block 12 are separated from each other, and the squeezed reset member 21 pushes the heat-conducting tube 9 and the friction secondary block 12 to reset;

[0046] In this state, since the friction secondary block 12 can move downward, the friction force between the friction main block 11 and the friction secondary block 12 is small, and the heat generated is low, but the service life of the two is longer. At the same time, in non-winter, when the hydraulic oil is replaced, the reset member 21 can be removed. Without the support of the reset member 21, the heat conductive tube 9 will lower its own height, making it impossible for the friction main block 11 and the friction secondary block 12 to contact each other, thereby avoiding unnecessary friction.

[0047] Example 2, reference Figure 7 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the friction main block 11 and the friction secondary block 12 are both half-moon shaped as a whole, and the two are in contact with each other. The lifting assembly includes a discharge port arranged in a ring array at the bottom of the oil storage tank 1 with the rotating shaft 6 as the center, a support block 18 detachably connected to the discharge port, a limit tube 19 connected to the support block 18, a limit rod 20 arranged between the limit tube 19 and the heat-conducting tube 9, and a reset member 21 connected between the limit tube 19 and the heat-conducting tube 9. The upper end of the limit rod 20 is connected to the lower end of the heat-conducting tube 9, and the two ends of the reset member 21 are not connected to the support block 18 and the heat-conducting tube 9, but only keep in contact. The reset member 21 can be a spring. In this embodiment, the reset member 21 is in a compressed state.

[0048] Specifically, the compressed reset member 21 will continuously push the heat-conducting tube 9 upwards. After the heat-conducting tube 9 is subjected to force, it will push the friction secondary block 12 upwards through the heat-conducting secondary ring 10. The friction secondary block 12 squeezes the friction main block 11. When the two facing horizontal surfaces of the friction main block 11 and the friction secondary block 12 rotate relative to each other and wear occurs, the compressed reset member 21 will push the friction secondary block 12 to continuously move upwards, so that the two continue to maintain friction.

[0049] In this state, the friction auxiliary block 12 can move upward, the friction force between the main friction block 11 and the friction auxiliary block 12 is large, and the heat generated is high, but the service life of the two is low.

[0050] The remaining structures are the same as those of Example 1.

[0051] Example 3, reference Figure 8-9 , which is the third embodiment of the present invention. This embodiment is different from the first embodiment in that: the mixing component includes a bearing 14 sleeved on the outer wall of the heat-conducting tube 9, a plurality of arc-shaped driving plates 15 connected to the outer wall of the bearing 14 in an annular array, a plurality of driving blocks 16 connected to the bottom of the oil storage tank 1, a V-shaped driving groove 17 provided on the outer side of the driving plate 15, and a mixing component installed on the driving block 16, and one end of the driving block 16 is inserted into the corresponding driving groove 17, and the mixing component includes a driving bar 22 detachably connected to the driving block 16, and a mixing mesh plate 23 connected to the other end of the driving bar 22.

[0052] Specifically, when the heat-conducting tube 9 moves downward, the driving plate 15 is driven to move downward synchronously through the bearing 14. Since one end of the driving block 16 is inserted into the driving groove 17, the driving plate 15 is limited by the driving block 16 and performs arc-shaped reciprocating motion in the horizontal direction, thereby driving the mixing mesh plate 23 through the driving bar 22 to mix the hydraulic oil in the oil storage tank 1.

[0053] The remaining structures are the same as those of Example 1.

[0054] Example 4, reference Figure 2 and Figure 10-11, which is the fourth embodiment of the present invention, and this embodiment is different from the third embodiment in that: the impurity removal unit includes a support tube 24 obliquely connected to the inner wall of the oil storage tank 1, an oil guide tube 25 connected between the support tube 24 and the oil return pipe 3, a drive tube 26 with one end sealed and rotatably connected to the support tube 24, two bevel gears 27 transmission-connected between the rotating shaft 6 and the drive tube 26, the two bevel gears 27 are meshed with each other, and are respectively sleeved on the rotating shaft 6 and the drive tube 26, and the rotation speed of the drive tube 26 is adjusted by adjusting the gear ratio of the two bevel gears 27, a magnetic attraction component installed between the support tube 24 and the oil guide tube 25, and a screening component installed on the magnetic attraction component.

[0055] Specifically, the hydraulic oil returning from the return oil pipe 3 enters the support pipe 24 through the oil guide pipe 25, and then flows back to the transfer area through the drive pipe 26. When the rotating shaft 6 rotates, it is transmitted through two mutually meshing bevel gears 27 to drive the drive pipe 26 to rotate synchronously in the support pipe 24. The hydraulic oil flowing through the drive pipe 26 first passes through the magnetic attraction component to magnetically attract the metal impurities inside, and then removes the remaining impurities through the screening component.

[0056] Reference Figure 2 and Figure 10-12 The magnetic suction component includes a taking port opened on the wall of the oil storage tank 1 corresponding to the position of the support tube 24, a taking cover 29 detachably installed on the taking port, a magnetic rod 30 connected to the inner side of the taking cover 29, a sleeve 31 sleeved on the magnetic rod 30, and spiral blades 32 connected to the sleeve 31 and evenly and equidistantly distributed in a spiral shape, the starting angle between any two adjacent spiral blades 32 is 60°, and the expansion angle of the spiral blades 32 is 50°.

[0057] Specifically, the driving tube 26 drives the hydraulic oil flowing through it to rotate and rotate relative to the spiral blades 32. The hydraulic oil near the spiral blades 32 is guided by the spiral blades 32 to move toward the taking cover 29 until it reaches the unfolded residual angle of the spiral blades 32 and naturally falls. The spiral blades 32 on the entire sleeve 31 are distributed in a spiral shape, which increases the time for the hydraulic oil to pass through the driving tube 26 and allows the hydraulic oil to move fully in the driving tube 26. The magnetism of the magnetic rod 30 adsorbs metal impurities in the hydraulic oil onto the sleeve 31. The taking cover 29 is removed regularly, the magnetic rod 30 is extracted from the oil tank 1, and the sleeve 31 is pulled out from the magnetic rod 30 to clean the metal impurities on the sleeve 31.

[0058] Reference Figure 2 and Figure 10-13The screening component includes a screen drum 33 movably arranged in a driving tube 26, and there is friction between the driving tube 26 and the screen drum 33. When the driving tube 26 rotates, it will drive the screen drum 33 to rotate, a chassis 34 sealed and rotatably connected to the bottom of the screen drum 33, a brush plate 35 detachably connected to the magnetic bar 30, bristles 36 connected to the brush plate 35, a slag groove 37 provided on the brush plate 35, a screen 28 connected to the bottom of the slag groove 37, the chassis 34 and the magnetic bar 30 are detachably connected, one end of the bristles 36 away from the brush plate 35 is movably arranged on the inner wall of the screen drum 33, and the slag groove 37 is located on one side of the bristles 36, and a splash guard is connected to one side of the partition 4 located in the transfer area, and the splash guard covers the screen drum 33.

[0059] Specifically, the lubricating oil in the drive tube 26 that passes through the magnetic suction component enters the screen drum 33 for filtering and removing impurities. When the drive tube 26 is rotated under force, the screen drum 33 will be driven to rotate, and centrifugal force will be applied to the hydraulic oil in the screen drum 33 to throw out the hydraulic oil, while impurities will remain in the screen drum 33. At the same time, the screen drum 33 continues to rotate, and the impurities adhered to the inner wall of the screen drum 33 will contact the bristles 36. The impurities adhered to the inner wall of the screen drum 33 are swept into the slag trough 37 to prevent the screen drum 33 from being blocked and affecting the filtration efficiency of the lubricating oil. The lubricating oil in the impurities continues to be filtered out through the screen 28.

[0060] The remaining structure is the same as that of Example 3.

[0061] Based on Examples 1, 3-4, the working principle of the present invention is as follows:

[0062] The hydraulic oil returning from the return oil pipe 3 enters the support pipe 24 from the oil guide pipe 25, and then flows back to the transfer area through the drive pipe 26, driving the motor 5, driving the support frame 7 to rotate through the rotating shaft 6, and then driving the friction main block 11 to rotate synchronously through the heat-conducting main ring 8. The friction main block 11 contacts and rubs with the friction secondary block 12 on the heat-conducting secondary ring 10, exerting a downward extrusion force on the friction secondary block 12. After the friction secondary block 12 is stressed, it exerts a downward extrusion force on the heat-conducting tube 9. The heat-conducting tube 9 drives the heat-conducting strip 13 and the limit rod 20 to descend in the limit tube 19, and squeezes the reset member 21 until the friction main block 11 and the friction secondary block 12 are separated from each other. The squeezed reset member 21 pushes the heat-conducting tube 9 and the friction secondary block 12 to reset. When the friction main block 11 contacts with the friction secondary block 12, heat is generated. The generated heat is transferred to the hydraulic oil in the oil storage tank 1 through the heat-conducting main ring 8, the heat-conducting secondary ring 10, the heat-conducting tube 9 and the heat-conducting strip 13;

[0063] When the heat-conducting cylinder 9 moves downward, the driving plate 15 is driven to move downward synchronously through the bearing 14. Since one end of the driving block 16 is inserted into the driving groove 17, the driving plate 15 is limited by the driving block 16 and performs arc-shaped reciprocating motion in the horizontal direction, thereby driving the mixing mesh plate 23 to mix the hydraulic oil in the oil storage tank 1 through the driving bar 22;

[0064] As the rotating shaft 6 rotates, the two bevel gears 27 drive the driving tube 26 to rotate synchronously in the support tube 24. The driving tube 26 drives the hydraulic oil flowing through the inside to rotate and rotates relatively with the spiral blades 32. The hydraulic oil near the spiral blades 32 is guided by the spiral blades 32 to move toward the take-up cover 29 until it reaches the unfolded angle of the spiral blades 32 and naturally falls. The spiral blades 32 on the entire sleeve 31 are distributed in a spiral shape, which increases the time for the hydraulic oil to pass through the driving tube 26 and allows the hydraulic oil to move fully in the driving tube 26. The metal impurities in the hydraulic oil are adsorbed onto the sleeve 31 by the magnetism of the magnetic rod 30, and the lubrication of the driving tube 26 after passing through the magnetic suction component The oil enters the screen drum 33 for filtering and removing impurities. When the driving tube 26 is rotated under force, the screen drum 33 will be driven to rotate, and centrifugal force will be applied to the hydraulic oil in the screen drum 33 to throw out the hydraulic oil, while the impurities will remain in the screen drum 33. At the same time, the screen drum 33 continues to rotate, and the impurities adhered to the inner wall of the screen drum 33 will contact the bristles 36. The impurities adhered to the inner wall of the screen drum 33 are swept into the slag trough 37, and the lubricating oil in the impurities continues to be filtered out through the screen 28. The removal cover 29 is removed regularly, the magnetic rod 30 is extracted from the oil storage tank 1, the screen drum 33 is disassembled from the magnetic rod 30, and then the sleeve 31 is pulled out from the magnetic rod 30, and the metal impurities on the sleeve 31 and the impurities in the screen drum 33 are cleaned.

[0065] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A hydraulic oil tank for a hydraulic transmission system, comprising an oil storage tank (1), an oil suction device (2) and an oil return pipe (3) arranged on the top of the oil storage tank (1), characterized in that: The oil storage tank (1) is provided with a partition (4), and the oil storage tank (1) is divided into an oil supply area and a transfer area by the partition (4). The lower end of the oil absorber (2) extends into the oil supply area. A heating unit and a de-impurity unit are provided in the transfer area. The heating unit and the de-impurity unit are connected in a transmission manner. The heating unit comprises a motor (5) arranged at the outer bottom of the oil storage tank (1), a rotating shaft (6) arranged at the output end of the motor (5), a heating component arranged on the rotating shaft (6), and a mixing component arranged on the heating component, the rotating shaft (6) is sealed and penetrates through the bottom of the oil storage tank (1) and is rotatably arranged thereon, and the heating component and the mixing component are both arranged inside the oil storage tank (1); The heating component comprises a plurality of support frames (7) arranged in an array along a vertical direction on the shaft wall of a rotating shaft (6), a heat-conducting main ring (8) arranged on the support frame (7), a heat-conducting tube (9) sleeved on the outer side of the rotating shaft (6), a plurality of heat-conducting secondary rings (10) arranged in an array along a vertical direction on the inner tube wall of the heat-conducting tube (9), a plurality of friction main blocks (11) arranged in an annular array at the lower end of the heat-conducting main ring (8), a plurality of friction secondary blocks (12) arranged in an annular array at the upper end of the heat-conducting secondary ring (10), and a lifting assembly arranged between the inner bottom of the oil storage tank (1) and the bottom of the heat-conducting tube (9), wherein the heat-conducting tube (9) is arranged on the mixing component; The lifting assembly comprises a discharge port arranged in a circular array at the bottom of the oil storage tank (1) with the rotating shaft (6) as the center, a support block (18) arranged in the discharge port, a limit tube (19) arranged on the support block (18), a limit rod (20) arranged between the limit tube (19) and the heat conducting tube (9), and a reset member (21) arranged between the limit tube (19) and the heat conducting tube (9); The mixing component comprises a bearing (14) arranged on the outer wall of the heat-conducting cylinder (9), a plurality of arc-shaped drive plates (15) arranged in an annular array on the outer wall of the bearing (14), a plurality of drive blocks (16) arranged on the bottom of the inner box of the oil storage tank (1), a V-shaped drive groove (17) arranged on the outer side of the drive plate (15), and a mixing assembly arranged on the drive block (16), wherein one end of the drive block (16) is inserted into the corresponding drive groove (17); The mixing component comprises a driving bar (22) arranged on the driving block (16), and a mixing screen (23) arranged at the other end of the driving bar (22).

2. The hydraulic oil tank for a hydraulic transmission system according to claim 1, characterized in that: The main friction block (11) and the secondary friction block (12) are arranged correspondingly, the wall of the heat-conducting tube (9) is hollowed out, and a plurality of operation ports are arranged in an annular pattern on the wall of the heat-conducting tube (9).

3. The hydraulic oil tank for a hydraulic transmission system according to claim 1, characterized in that: The heating component further comprises a plurality of heat-conducting strips (13) evenly and equidistantly distributed on the outer wall of the heat-conducting tube (9), the heat-conducting strips (13) comprising two transverse plates and an inclined plate arranged between the two transverse plates, the transverse plates and the inclined plates being integrally stamped and formed, and an angle between the inclined plate and the transverse plate is 140-160°.

4. The hydraulic oil tank for a hydraulic transmission system according to claim 1, characterized in that: The impurity removal unit comprises a support tube (24) obliquely arranged on the inner wall of the oil storage tank (1), an oil guide tube (25) arranged between the support tube (24) and the oil return tube (3), a drive tube (26) with one end sealed and rotatably arranged in the support tube (24), two bevel gears (27) transmission-arranged between the rotating shaft (6) and the drive tube (26), a magnetic attraction component arranged between the support tube (24) and the oil guide tube (25), and a screening component arranged on the magnetic attraction component.

5. The hydraulic oil tank for a hydraulic transmission system according to claim 4, characterized in that: The magnetic attraction component comprises a taking port arranged on the wall of the oil storage tank (1) corresponding to the position of the support tube (24), a taking cover (29) arranged on the taking port, a magnetic rod (30) arranged on the taking cover (29), a sleeve (31) arranged on the magnetic rod (30), and spiral blades (32) evenly and equidistantly distributed in a spiral shape on the sleeve (31), wherein the starting angle between any two adjacent spiral blades (32) is 60°, and the expansion angle of the spiral blades (32) is 50-70°.

6. The hydraulic oil tank for a hydraulic transmission system according to claim 5, characterized in that: The screening assembly comprises a screen drum (33) arranged in a driving tube (26), a bottom plate (34) sealed and rotatably arranged at the bottom of the screen drum (33), a brush plate (35) arranged on a magnetic bar (30), bristles (36) arranged on the brush plate (35), a slag trough (37) arranged on the brush plate (35), and a screen (28) arranged at the bottom of the slag trough (37), wherein the bottom plate (34) and the magnetic bar (30) are detachably connected, an end of the bristles (36) away from the brush plate (35) is movably arranged on the inner wall of the screen drum (33), and the slag trough (37) is located on one side of the bristles (36).

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