Hydraulic oil cylinder capable of filtering and cooling

Abstract

The utility model relates to a hydraulic oil cylinder capable of filtering and cooling, which comprises an oil cylinder body and a piston rod, a first oil inlet and a first oil outlet are formed in the oil cylinder body, an adjusting assembly is arranged on the first oil inlet and comprises an adjusting block, a filtering groove, an oil discharging groove, an oil inlet channel, an upper cover plate, a lower cover plate, a first filtering assembly and a second filtering assembly, condensation cavities are formed in the two sides of the adjusting block, and condensation pipelines are arranged in the condensation cavities; the upper cover plate is provided with a second oil inlet, the lower cover plate is provided with a second oil outlet, the first filtering assembly comprises a plurality of filtering net rings, the upper end of the oil discharging groove is provided with a mounting groove, the second filtering assembly comprises a filtering motor, a filtering shaft, two reciprocating thread parts and lifting net plates, and each lifting net plate is provided with an inner screw hole. And each lifting screen plate is arranged in the oil discharge groove in a reciprocating lifting manner through the matching of each inner hole and the reciprocating thread part, and is used for carrying out secondary filtering and oil discharge on oil in the oil discharge groove. The device is ingenious in structure, efficient and convenient.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic oil cylinders, in particular to a hydraulic oil cylinder capable of filtering and cooling. Background Art

[0002] Hydraulic cylinders are key actuators in hydraulic systems and are widely used in engineering machinery, metallurgical equipment, aerospace, ships, and automobiles. Their main function is to convert hydraulic energy into mechanical energy for linear reciprocating or swinging motion. Hydraulic cylinders can be classified in various ways, based on different standards such as mode of action, working principle, installation method, working pressure, and application field.

[0003] During the operation of the hydraulic cylinder, the hydraulic oil is circulated. The hydraulic system converts the mechanical energy of the prime mover into the pressure energy (hydraulic energy) of the oil through the hydraulic pump, and then converts the pressure energy into mechanical energy through the hydraulic cylinder and other actuators to complete the working cycle. When the hydraulic cylinder is working, the hydraulic oil flows between different chambers in the cylinder, transmits movement through the change of the sealed volume, and transmits power through the pressure inside the oil. However, during the operation of the hydraulic cylinder, since the hydraulic oil will generate wear and heat in high pressure and mechanical movement, the impurities in the oil itself and the impurities generated by wear during mechanical movement, as well as the heat generated during the movement will greatly affect the oil in the hydraulic cylinder and the overall use effect and service life of the oil cylinder, which is very inconvenient. Summary of the invention

[0004] The utility model aims to provide a hydraulic oil cylinder capable of filtering and cooling, which has an ingenious structure and can filter and cool the oil during oil inlet or oil circulation, thereby protecting the oil and the hydraulic oil cylinder as a whole, and has an ingenious structure, and is stable and practical.

[0005] The technical scheme for realizing the purpose of the utility model is as follows: the utility model comprises an oil cylinder body and a piston rod slidably arranged on the oil cylinder body; the oil cylinder body is provided with a first oil inlet and a first oil outlet, the first oil inlet is provided with an adjusting component which can filter and cool the oil introduced from the external oil tank, the adjusting component comprises an adjusting block, a filter tank arranged on the upper end face of the adjusting block, an oil drain tank arranged on the lower end face of the adjusting block, an oil inlet channel connecting the filter tank and the oil drain tank, an upper cover plate detachably mounted on the upper end face of the filter tank, a lower cover plate detachably mounted on the oil drain tank, a first filter component arranged in the filter tank and capable of performing preliminary filtering of the oil, and a second filter component arranged in the oil drain tank and capable of performing secondary filtering of the oil, condensation chambers which can cool the oil in the oil inlet channel and the oil drain tank are arranged on both sides of the adjusting block, a condensation pipeline which can pass the condensate is arranged in the condensation chamber, the upper cover plate is provided with a second oil inlet connected to the external oil tank, the second oil inlet is connected to the filter tank The filter element is connected, and the lower cover is provided with a second oil outlet which can be sleeved with the first oil inlet port. The first filter assembly includes a plurality of filter rings coaxially arranged with the filter tank, the lower end of each filter ring is pressed against the bottom of the filter tank, and the upper end of each filter ring is pressed against the bottom of the upper cover plate. The upper end of the oil drain tank is provided with a mounting groove connected with the oil drain tank, and the second filter assembly includes a filter motor fixed in the mounting groove, a filter shaft fixed at the output end of the filter motor, two reciprocating threaded portions relatively arranged on the filter shaft, and a lifting mesh plate adapted to each reciprocating threaded portion. The oil inlet channel is located below the mounting groove, and the mounting groove is provided with a partition plate which can separate the filter motor and the oil drain chamber, and the output end of the filter motor is fixedly connected to the filter shaft after passing through the partition plate, and each lifting mesh plate is provided with an internal screw hole adapted to the reciprocating threaded portion, and each lifting mesh plate is reciprocated and lifted in the oil drain tank through the cooperation of each inner hole and the reciprocating threaded portion, and performs secondary filtering and oil draining on the oil in the oil drain tank.

[0006] Furthermore, the above-mentioned first filter component includes a first filter mesh ring, a second filter mesh ring and a third filter mesh ring which are coaxially arranged with the filter tank, the inner diameter of the first filter mesh ring is smaller than the inner diameter of the second filter mesh ring, the inner diameter of the second filter mesh ring is smaller than the inner diameter of the third filter mesh ring, the aperture of each mesh hole on the first filter mesh ring is larger than the aperture of each mesh hole on the second filter mesh ring, the aperture of each mesh hole on the second filter mesh ring is larger than the aperture of each mesh hole on the third filter mesh ring, the inner diameter of each mesh hole on the third filter mesh ring is larger than the aperture of each mesh hole on the lifting mesh plate, the oil in the filter tank is filtered in multiple stages through the first filter mesh ring, the second filter mesh ring and the third filter mesh ring, and is filtered and discharged for the second time through the filter motor driving the filter shaft and the lifting mesh plate on the filter shaft.

[0007] Furthermore, a connecting rod is provided between the first filter mesh ring and the second filter mesh ring, and between the second filter mesh ring and the third filter mesh ring. The bottom of the filter groove is convex, and the widths of the first filter mesh ring, the second filter mesh ring and the third filter mesh ring increase successively. The bottoms of the first filter mesh ring, the second filter mesh ring and the third filter mesh ring are all provided with a pressing slope that can press against the convex groove bottom.

[0008] Furthermore, each lifting mesh plate is provided with a limit slider at both ends, and each side wall of the oil drain groove is provided with a limit slide groove corresponding to each limit slider. Each lifting mesh plate is set in the oil drain groove through the driving of the filter shaft by the filter motor, the thread matching of the internal screw hole on each lifting mesh plate and the corresponding reciprocating thread part, and the matching lifting of each limit slider and the limit slide groove.

[0009] Furthermore, each limit slider is provided with a connecting screw, and both sides of each lifting mesh plate are provided with connecting screw holes corresponding to each connecting screw. Each limit slider is fixed to the lifting mesh plate through the cooperation of each connecting screw and the corresponding connecting screw hole.

[0010] Furthermore, each condensation chamber is arranged on the left and right sides of the adjustment block, and an opening and closing cover that can control the opening and closing of the condensation chamber is provided on the outer wall of each adjustment block. Each condensation channel is arranged in the condensation chamber, and the inlet and outlet of each condensation chamber are fixed on the opening and closing cover.

[0011] Furthermore, the second oil inlet and the second oil outlet are both provided with a filter bottom net.

[0012] The utility model has positive effects: (1) The utility model sets a filter tank, sets a first filter assembly in the filter tank, and performs preliminary filtration on the oil in the filter tank through a plurality of filter mesh rings. After the filtration is completed, the oil enters the oil drain tank through the oil inlet channel. In the process of the oil flow, the oil is cooled through the condensation pipeline and the condensation chamber. After the cooling is completed, the filter motor drives the two lifting mesh plates to perform reciprocating lifting and lowering movements. On the one hand, the impurities in the oil can be further filtered, and on the other hand, a discharge force can be given to the oil, thereby facilitating the discharge of the oil. The utility model effectively solves the problem in the prior art that impurities in the oil affect the overall use of the hydraulic cylinder and that overheating of the oil affects the service life of the oil. The utility model can effectively filter the oil multiple times and cool the overheated oil at the same time, which not only ensures the service life of the oil, but also ensures the service life of the hydraulic cylinder as a whole. The structure is ingenious and stable and practical.

[0013] (2) The utility model provides a first filter mesh ring, a second filter mesh ring and a third filter mesh ring, and sets the inner diameter of each filter mesh ring to be larger and larger, and the aperture of the mesh on the filter mesh ring is smaller and smaller, so that different impurities in the oil can be fully filtered by replacing them, thereby ensuring the cleanliness of the oil.

[0014] (3) The utility model can install each filter screen synchronously by setting a connecting rod. At the same time, the raised groove bottom and the pressing inclined surface can ensure the stability of the installation of the filter screen and reduce the impact force received when the oil enters. It is stable and practical.

[0015] (4) The utility model provides limit sliders on each lifting mesh plate. Through the cooperation of the limit sliders and the limit slide grooves, on the one hand, the stability and smoothness of the lifting mesh plate during the lifting process can be ensured, and on the other hand, the sliding limit of the lifting mesh plate during the lifting process can be ensured, which is safe and practical.

[0016] (5) The utility model provides a connecting screw on the limit slider and connecting screw holes on both sides of the lifting mesh plate. The limit slider can be quickly installed or disassembled with the lifting mesh plate through the cooperation of the connecting screw and the connecting screw hole, thereby facilitating the replacement of the lifting slider, which is efficient and practical.

[0017] (6) The utility model provides a condensation chamber, a condensation pipeline in the condensation chamber, and an opening and closing cover on the outer wall of the regulating block. On the one hand, the condensation pipeline can be positioned and stably installed by the opening and closing cover. On the other hand, the residual liquid in the condensation chamber can be discharged in time by opening and closing the opening and closing cover, so as to avoid affecting the overall condensation effect of the condensation chamber. The utility model is efficient and practical.

[0018] (7) The utility model can achieve multiple filtration of the oil by arranging filter bottom nets at the second oil inlet and the second oil outlet, thereby further ensuring the cleanliness of the oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to specific embodiments and in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the hydraulic cylinder capable of filtering and cooling in the utility model;

[0021] Figure 2 It is a cross-sectional view of the overall structure of the adjustment component in the utility model;

[0022] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0023] Figure 4It is a top view of the connection structure of the first filter mesh ring, the second filter mesh ring and the third filter mesh ring in the utility model;

[0024] Figure 5 It is a cross-sectional view of the connection structure of the first filter mesh ring, the second filter mesh ring and the third filter mesh ring in the utility model;

[0025] Figure 6 It is a cross-sectional view of the connection structure between the filter shaft and the lifting screen plate in the utility model;

[0026] Figure 7 It is a cross-sectional view of the overall structure of the lifting screen plate in the utility model. DETAILED DESCRIPTION

[0027] See Figures 1 to 7The utility model comprises an oil cylinder body 1, and a piston rod 13 slidably arranged on the oil cylinder body 1; the oil cylinder body 1 is provided with a first oil inlet 11 and a first oil outlet 12, the first oil inlet 11 is provided with an adjusting component 2 which can filter and cool the oil introduced from the external oil tank, the adjusting component 2 comprises an adjusting block 21, a filter tank 22 arranged on the upper end surface of the adjusting block 21, an oil drain tank 25 arranged on the lower end surface of the adjusting block 21, an oil inlet channel 23 connecting the filter tank 22 and the oil drain tank 25, an upper cover plate 24 detachably installed on the upper end surface of the filter tank 22, and a detachable The lower cover plate 26 is installed on the oil drain tank 25 in a regulated manner, a first filter assembly 3 is arranged in the filter tank 22 and can perform preliminary filtering on the oil, and a second filter assembly 4 is arranged in the oil drain tank 25 and can perform secondary filtering on the oil. Both sides of the regulating block 21 are provided with condensation chambers 3 that can cool the oil in the oil inlet channel 23 and the oil drain tank 25. The condensation chamber 3 is provided with a condensation pipeline 31 that can pass the condensate. The upper cover plate 24 is provided with a second oil inlet 27 connected to the external oil tank, and the second oil inlet 27 is communicated with the filter tank 22. The lower cover plate 26 is provided with a condensation chamber 3 that can cool the oil in the oil inlet channel 23 and the oil drain tank 25. The oil inlet 11 is sleeved with the second oil outlet 28, the first filter assembly 3 includes a plurality of filter mesh rings coaxially arranged with the filter tank 22, the lower end of each filter mesh ring is pressed against the bottom of the filter tank 22, and the upper end of each filter mesh ring is pressed against the bottom of the upper cover plate 24, the upper end of the oil drain tank 25 is provided with a mounting groove 252 connected to the oil drain tank 25, the second filter assembly 4 includes a filter motor 41 fixed in the mounting groove 252, a filter shaft 42 fixed to the output end of the filter motor 41, two reciprocating threaded portions 421 relatively arranged on the filter shaft 42, and a reciprocating threaded portion 421 connected to each reciprocating threaded portion 421. The lifting mesh plate 43 is adapted to the reciprocating threaded portion 421, and the oil inlet channel 23 is located below the mounting groove 252. The mounting groove 252 is provided with a partition plate 253 that can separate the filter motor 41 and the oil drain chamber. The output end of the filter motor 41 passes through the partition plate 253 and is fixedly connected to the filter shaft 42. Each lifting mesh plate 43 is provided with an internal threaded hole 431 adapted to the reciprocating threaded portion 421. Each lifting mesh plate 43 is reciprocatingly lifted and lowered in the oil drain groove 25 through the cooperation of each inner hole and the reciprocating threaded portion 421, and the oil in the oil drain groove 25 is secondary filtered and drained.

[0028] The first filter assembly 3 includes a first filter mesh ring 31, a second filter mesh ring 32 and a third filter mesh ring 33 which are coaxially arranged with the filter tank 22. The inner diameter of the first filter mesh ring 31 is smaller than the inner diameter of the second filter mesh ring 32, the inner diameter of the second filter mesh ring 32 is smaller than the inner diameter of the third filter mesh ring 33, the aperture of each mesh hole on the first filter mesh ring 31 is larger than the aperture of each mesh hole on the second filter mesh ring 32, the aperture of each mesh hole on the second filter mesh ring 32 is larger than the aperture of each mesh hole on the third filter mesh ring 33, and the inner diameter of each mesh hole on the third filter mesh ring 33 is larger than the aperture of each mesh hole on the lifting mesh plate 43. The oil in the filter tank 22 is filtered in multiple stages by the first filter mesh ring 31, the second filter mesh ring 32 and the third filter mesh ring 33, and is filtered and discharged for the second time by driving the filter shaft 42 and the lifting mesh plate 43 on the filter shaft 42 by the filter motor 41.

[0029] A connecting rod 34 is provided between the first filter mesh ring 31 and the second filter mesh ring 32, and between the second filter mesh ring 32 and the third filter mesh ring 33. The bottom of the filter groove 22 is convex, and the widths of the first filter mesh ring 31, the second filter mesh ring 32 and the third filter mesh ring 33 increase successively. The bottoms of the first filter mesh ring 31, the second filter mesh ring 32 and the third filter mesh ring 33 are all provided with a pressing inclined surface that can press against the convex groove bottom.

[0030] Both ends of each lifting mesh plate 43 are provided with a limit slider 44, and each side wall of the oil drain groove 25 is provided with a limit slide groove 251 corresponding to each limit slider 44. Each lifting mesh plate 43 is set in the oil drain groove 25 through the driving of the filter shaft 42 by the filter motor 41, the threaded cooperation between the internal screw hole 431 on each lifting mesh plate 43 and the corresponding reciprocating threaded part 421, and the cooperation and lifting of each limit slider 44 and the limit slide groove 251.

[0031] Each limit slider 44 is provided with a connecting screw 441, and each lifting mesh plate 43 is provided with a connecting screw hole 432 corresponding to each connecting screw 441 on both sides. Each limit slider 44 is fixed to the lifting mesh plate 43 by the cooperation between each connecting screw 441 and the corresponding connecting screw hole 432.

[0032] Each condensation chamber 3 is arranged on the left and right sides of the adjustment block 21, and an opening and closing cover 211 that can control the opening and closing of the condensation chamber 3 is provided on the outer wall of each adjustment block 21. Each condensation channel is arranged in the condensation chamber 3, and the inlet and outlet of each condensation chamber 3 are fixed on the opening and closing cover 211.

[0033] The second oil inlet 27 and the second oil outlet 28 are both provided with a filter bottom net 29 .

[0034] Working principle of the utility model: During the use of the utility model, the first filter mesh ring 31, the second filter mesh ring 32 and the third filter mesh ring 33 are first installed into the filter tank 22, and the filter tank 22 is fixed on the upper cover plate 24 and then fixed to the adjusting block 21 through the locking piece, and the filter tank 22 is closed, the partition plate 253 in the oil drain tank 25 is opened to install the filter motor 41, and then the filter shaft 42, the lifting mesh plate 43, and the various limit sliders 44 on the lifting mesh plate 43 are installed, and the lower cover plate 26 is fixed to the bottom of the adjusting block 21 through the locking piece, and the oil drain tank 25 is closed, the condensation pipelines 31 on the left and right sides of the adjusting block 21 are connected to the external condensation liquid tank, and condensation liquid is injected into the condensation pipelines 31, when the newly injected oil or the circulated oil enters the filter tank 22 through the second oil inlet 27 on the upper cover plate 24, the oil in the filter tank 22 is discharged by its own weight, And guided by the raised groove bottom in the filter groove 22, it passes through the first filter mesh ring 31, the second filter mesh ring 32 and the third filter mesh ring 33 in turn. The apertures of the mesh holes of the first filter mesh ring 31, the second filter mesh ring 32 and the third filter mesh ring 33 gradually become smaller, so that the impurities in the oil are preliminarily filtered, and then the oil enters the oil drain groove 25 through the oil inlet channel 23. Each lifting mesh plate 43 is reciprocated and lifted in the oil drain groove 25 through the cooperation of each inner hole and the reciprocating threaded portion 421, and the oil in the oil drain groove 25 is secondary filtered and drained, which effectively solves the problem in the prior art that impurities in the oil affect the overall use of the hydraulic cylinder and overheating of the oil affects the service life of the oil. The oil can be effectively filtered multiple times, and the overheated oil can also be cooled, which not only ensures the service life of the oil, but also ensures the overall service life of the hydraulic cylinder, which is efficient and convenient.

[0035] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic cylinder capable of filtering and cooling, comprising a cylinder body and a piston rod slidably arranged on the cylinder body; characterized in that: The oil cylinder body is provided with a first oil inlet and a first oil outlet, the first oil inlet is provided with an adjusting component for filtering and cooling the oil introduced into the external oil tank, the adjusting component comprises an adjusting block, a filter tank arranged on the upper end surface of the adjusting block, an oil drain tank arranged on the lower end surface of the adjusting block, an oil inlet channel connecting the filter tank and the oil drain tank, an upper cover plate detachably mounted on the upper end surface of the filter tank, a lower cover plate detachably mounted on the oil drain tank, a first filter component arranged in the filter tank and capable of performing preliminary filtering of the oil, and a second filter component arranged in the oil drain tank and capable of performing secondary filtering of the oil, condensation chambers for cooling the oil in the oil inlet channel and the oil drain tank are provided on both sides of the adjusting block, a condensation pipeline for passing condensate is provided in the condensation chamber, the upper cover plate is provided with a second oil inlet connected to the external oil tank, the second oil inlet is communicated with the filter tank, and the lower cover plate is provided with a second outlet which can be sleeved with the first oil inlet The oil port, the first filter assembly includes a plurality of filter rings coaxially arranged with the filter tank, the lower end of each filter ring is pressed against the bottom of the filter tank, and the upper end of each filter ring is pressed against the bottom of the upper cover plate, the upper end of the oil drain tank is provided with a mounting groove connected to the oil drain tank, and the second filter assembly includes a filter motor fixed in the mounting groove, a filter shaft fixed at the output end of the filter motor, two reciprocating threaded portions relatively arranged on the filter shaft, and a lifting mesh plate adapted to each reciprocating threaded portion, the oil inlet channel is located below the mounting groove, the mounting groove is provided with a partition plate that can separate the filter motor and the oil drain chamber, the output end of the filter motor passes through the partition plate and is fixedly connected to the filter shaft, each lifting mesh plate is provided with an internal screw hole adapted to the reciprocating threaded portion, and each lifting mesh plate is reciprocated and lifted in the oil drain tank through the cooperation of each inner hole and the reciprocating threaded portion, and performs secondary filtration and oil drainage on the oil in the oil drain tank.

2. The hydraulic cylinder capable of filtering and cooling according to claim 1, characterized in that: The first filter assembly includes a first filter mesh ring, a second filter mesh ring and a third filter mesh ring which are coaxially arranged with the filter tank, the inner diameter of the first filter mesh ring is smaller than the inner diameter of the second filter mesh ring, the inner diameter of the second filter mesh ring is smaller than the inner diameter of the third filter mesh ring, the aperture of each mesh hole on the first filter mesh ring is larger than the aperture of each mesh hole on the second filter mesh ring, the aperture of each mesh hole on the second filter mesh ring is larger than the aperture of each mesh hole on the third filter mesh ring, the inner diameter of each mesh hole on the third filter mesh ring is larger than the aperture of each mesh hole on the lifting mesh plate, the oil in the filter tank is filtered in multiple stages through the first filter mesh ring, the second filter mesh ring and the third filter mesh ring, and is filtered and discharged for the second time by driving the filter shaft and the lifting mesh plate on the filter shaft through the filter motor.

3. The hydraulic cylinder capable of filtering and cooling according to claim 2, characterized in that: A connecting rod is provided between the first filter mesh ring and the second filter mesh ring, and between the second filter mesh ring and the third filter mesh ring. The bottom of the filter groove is convex, and the widths of the first filter mesh ring, the second filter mesh ring and the third filter mesh ring increase successively. The bottoms of the first filter mesh ring, the second filter mesh ring and the third filter mesh ring are all provided with a pressing inclined surface that can press against the convex groove bottom.

4. The hydraulic cylinder capable of filtering and cooling according to claim 3 is characterized in that: Both ends of each lifting mesh plate are provided with a limit slider, and each side wall of the oil drain groove is provided with a limit slide groove corresponding to each limit slider. Each lifting mesh plate is set in the oil drain groove through the driving of the filter shaft by the filter motor, the thread matching of the internal screw hole on each lifting mesh plate and the corresponding reciprocating thread part, and the matching lifting of each limit slider and the limit slide groove.

5. The hydraulic cylinder capable of filtering and cooling according to claim 4, characterized in that: Each limit slider is provided with a connecting screw, and both sides of each lifting mesh plate are provided with connecting screw holes corresponding to each connecting screw. Each limit slider is fixed on the lifting mesh plate through the cooperation of each connecting screw and the corresponding connecting screw hole.

6. The hydraulic cylinder capable of filtering and cooling according to claim 5, characterized in that: Each condensation chamber is arranged on the left and right sides of the adjustment block, and an opening and closing cover for controlling the opening and closing of the condensation chamber is provided on the outer wall of each adjustment block. Each condensation channel is arranged in the condensation chamber, and the inlet and outlet of each condensation chamber are fixed on the opening and closing cover.

7. The hydraulic cylinder capable of filtering and cooling according to claim 6, characterized in that: The second oil inlet and the second oil outlet are both provided with a filter bottom net.

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