Hydraulic cylinder with cooling function

Abstract

The utility model relates to hydraulic pressure oil cylinder technical field, and disclose a kind of hydraulic pressure oil cylinder with cooling function, including hydraulic pressure oil cylinder body, one side of hydraulic pressure oil cylinder body is equipped with cylinder body, both ends of cylinder body are connected with cylinder cover, and one end of one cylinder cover is sealed and movable and penetrated with piston rod;Cylinder body outside is equipped with cooling assembly, cooling assembly is used to cool inside hydraulic pressure oil cylinder body;Through cooling assembly, the heat of cylinder body is absorbed using circulating cooling water, and the temperature of hydraulic pressure oil cylinder body can be effectively controlled by continuously circulating cooling water, cooling water enters connecting pipe after from water inlet pipe, first pass through filter screen in first connecting frame to remove impurity in water, prevent impurity from entering water delivery tank and causing blockage, ensure that the initial link of cooling water circulation is unobstructed, magnet fixed in inner wall of placing rack can adsorb iron filings in water, further avoid iron filings to block water delivery tank, avoid because temperature is too high to influence the normal working performance and service life of hydraulic pressure oil cylinder body.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to a hydraulic cylinder with a cooling function. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy, performing linear reciprocating motion (or oscillating motion). It has a simple structure and reliable operation. When used to achieve reciprocating motion, it eliminates the need for a speed reduction device, eliminates transmission backlash, and provides smooth movement. Therefore, it is widely used in the hydraulic systems of various machines.

[0003] In actual operation, hydraulic cylinders generate a large amount of heat due to factors such as friction of internal hydraulic oil, friction between piston and cylinder, and high pressure of the hydraulic system. Although traditional water-cooled hydraulic cylinders utilize the high specific heat capacity and good heat dissipation of water to effectively absorb the heat dissipated by the hydraulic cylinder, impurities and iron filings may be present in the cooling water during circulation. If these impurities and iron filings enter the water tank, they can easily cause blockage, affecting the normal circulation of cooling water and thus reducing the cooling effect. Consequently, the temperature of the hydraulic cylinder body cannot be continuously and effectively controlled. Therefore, a hydraulic cylinder with a cooling function is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a hydraulic cylinder with a cooling function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic cylinder with a cooling function, comprising a hydraulic cylinder body, a cylinder body on one side of the hydraulic cylinder body, and cylinder covers connected to both ends of the cylinder body, wherein a piston rod is movably and sealed through one end of one of the cylinder covers;

[0006] A cooling component is provided on the outside of the cylinder body, which is used to cool the inside of the hydraulic cylinder body.

[0007] The cooling component includes a housing, inside which are provided several water inlets. The water inlet of each water inlet is connected to a connecting pipe. A limit ring is fixed to the outside of the connecting pipe, and a limit platform is fixed to the inner wall of the connecting pipe.

[0008] A first connecting frame is inserted into the inner side of the connecting tube and located on one side of the limiting platform. A filter screen is fixed to the bottom of the inner wall of the first connecting frame, and a placement frame is fixed to one side of the filter screen. A magnet is fixed to the inner wall of the placement frame.

[0009] Preferably, as described above, a boss is fixed on the outer top of the first connecting frame, and the two ends of the boss are respectively connected to one side of the connecting pipe and the second connecting frame.

[0010] Preferably, as described above, a first sealing ring is fixed to one side of the limiting platform and fits against the bottom side of the first connecting frame, and a second sealing ring is fixed to the inner wall of the second connecting frame and fits against one side of the boss.

[0011] Preferably, the inner side of the second connecting bracket is threaded to the outer side of the connecting pipe, and the inner wall of the housing is fixedly sleeved to the outer side of the cylinder.

[0012] Preferably, as described above, one end of the second connecting frame is connected to a water inlet pipe, and the liquid enters the inner side of the water supply tank after being filtered by the first connecting frame.

[0013] Preferably, the water outlet of the water tank is connected to a water outlet pipe, which discharges the liquid that has undergone heat exchange with the cylinder.

[0014] Preferably, one of the cylinder heads is bolted to one side with several connecting blocks, and a fixing bracket fitted onto the outside of the piston rod is fixed between the connecting blocks.

[0015] Preferably, the inner wall of the fixed frame is fixed with a scraper that is slidably connected to the outside of the piston rod.

[0016] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0017] 1. The cooling components utilize circulating cooling water to absorb the heat emitted by the cylinder body. The continuous circulation of cooling water can effectively control the temperature of the hydraulic cylinder body. After the cooling water enters the connecting pipe from the inlet pipe, it first passes through the filter screen in the first connecting frame to remove impurities in the water, preventing impurities from entering the water supply tank and causing blockage. This ensures that the initial stage of cooling water circulation is unobstructed. The magnets fixed on the inner wall of the placement frame will attract iron filings in the water, further preventing iron filings from clogging the water supply tank and avoiding the impact of excessive temperature on the normal working performance and service life of the hydraulic cylinder body.

[0018] 2. When it is necessary to clean the dirt and iron filings inside the filter screen, since the second connecting bracket is connected to the connecting pipe by a thread, and the first connecting bracket is associated with both by a boss, the first connecting bracket can be easily removed from the connecting pipe for cleaning by rotating the second connecting bracket to make it separate from the connecting pipe. After cleaning, it can be reinstalled and fixed. The operation is convenient and quick, and the filter screen can be maintained in time to ensure its filtration effect.

[0019] 3. When the hydraulic cylinder body is working, the piston rod makes a reciprocating linear motion. Its outer side is easily contaminated with dust, oil and other dirt. The inner wall of the fixed bracket on one side of the cylinder head is equipped with a scraper. When the piston rod moves, the scraper slides relative to the piston rod, which can scrape off the dirt on the outside of the piston rod in time and keep its surface clean. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a first-view structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the third-view structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure at the location of the water conveying tank of this utility model;

[0025] Figure 5 This is a top sectional view of the second connecting frame of this utility model.

[0026] Figure 6 This is a schematic diagram of the structure of the first connecting frame of this utility model.

[0027] Explanation of reference numerals in the attached drawings: 1. Hydraulic cylinder body; 3. Cooling component; 31. First connecting frame; 32. Connecting pipe; 33. Placement frame; 34. Housing; 35. Water inlet; 36. Second connecting frame; 37. Boss; 38. Limiting ring; 39. Magnet; 310. Limiting platform; 311. Filter screen; 4. Water outlet pipe; 5. Water inlet pipe; 6. Cylinder head; 7. Piston rod; 8. Fixing frame; 9. Connecting block; 10. Scraper. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0030] Example

[0031] Please see Figure 1-6 This utility model provides a technical solution: a hydraulic cylinder with a cooling function, including a hydraulic cylinder body 1, the oil inlet end and the oil outlet end of the hydraulic cylinder body 1 are respectively connected to a hydraulic station, the hydraulic cylinder body 1 is a cylinder that converts hydraulic energy into linear mechanical energy, its operation depends on the oil pressure to drive the piston movement, the piston rod 7 is used as the actuator to output force, a cylinder body is provided on one side of the hydraulic cylinder body 1, and cylinder covers 6 are connected to both ends of the cylinder body, one end of which is sealed and movable through the piston rod 7; a cooling component 3 is provided on the outside of the cylinder body, the cooling component 3 is used to cool the inside of the hydraulic cylinder body 1;

[0032] The cooling component 3 includes a housing 34 made of metal. Several water delivery channels 35 are provided inside the housing 34. The coolant, after being filtered and magnetically treated, enters the multiple parallel water delivery channels 35 inside the housing 34 through the limiting platform 310 of the connecting pipe 32. When the coolant flows in the water delivery channels 35, it comes into full contact with the outer wall of the hydraulic cylinder and absorbs the high temperature generated by the hydraulic oil inside the cylinder through heat conduction. The water inlet end of the water delivery channel 35 is connected to the connecting pipe 32. A limiting ring 38 is fixed on the outside of the connecting pipe 32, and a limiting platform 310 is fixed on the inner wall of the connecting pipe 32. The water delivery channels 35 are distributed in parallel on the outside of the cylinder to ensure uniform heat exchange.

[0033] A first connecting frame 31 located on one side of the limiting platform 310 is inserted into the inner side of the connecting pipe 32. A filter screen 311 is fixed to the bottom of the inner wall of the first connecting frame 31. The water pump pumps the coolant in the water tank into the connecting pipe 32 of the cooling component 3 through the water inlet pipe 5. The coolant first enters the filter screen 311 of the first connecting frame 31. The filter screen 311 removes impurities in the water. A placement frame 33 is fixed to one side of the filter screen 311. A magnet 39 is fixed to the inner wall of the placement frame 33. The magnet 39 is a neodymium iron boron magnet. The magnet 39 is checked regularly for adsorption. The magnet 39 adsorbs iron filings in the water to prevent iron filings from clogging the water supply tank 35. The coolant flows through the filter screen 311 fixed to the bottom of the first connecting frame 31. The mesh intercepts large particles of impurities in the water. At the same time, the neodymium iron boron magnet 39 in the placement frame 33 connected to the filter screen 311 generates a strong magnetic field, adsorbing iron filings in the coolant and preventing iron filings from entering the water supply tank 35 and causing blockage.

[0034] A boss 37 is fixed on the outer side of the top of the first connecting frame 31. The two ends of the boss 37 are respectively connected to the connecting pipe 32 and one side of the second connecting frame 36. By rotating the second connecting frame 36 away from the outside of the connecting pipe 32, the first connecting frame 31 can be removed to clean the dirt and iron filings on the inside of the filter screen 311.

[0035] A first sealing ring is fixed to one side of the limiting platform 310 and fits against the bottom side of the first connecting frame 31. A second sealing ring is fixed to the inner wall of the second connecting frame 36 and fits against one side of the boss 37. When too much impurity accumulates in the filter screen 311 or the magnet 39, the second connecting frame 36 is rotated to disengage it from the outer thread of the connecting tube 32. At this time, the boss 37 drives the first connecting frame 31 to be pulled out from the connecting tube 32, so that the surface of the filter screen 311 and the magnet 39 can be cleaned. After cleaning, they are reinstalled. The limiting platform 310 and the first sealing ring, and the boss 37 and the second sealing ring ensure that there is no leakage at the connection.

[0036] The inner side of the second connecting bracket 36 is threaded to the outer side of the connecting pipe 32. The inner wall of the housing 34 is fixedly sleeved on the outer side of the cylinder body. The contact area between the water supply tank 35 and the cylinder body is maximized. One end of the second connecting bracket 36 is connected to the water inlet pipe 5. After the liquid is filtered by the first connecting bracket 31, it enters the inner side of the water supply tank 35. One end of the water inlet pipe 5 is connected to the water pump and the water tank. The water pump pumps the water in the water tank to the inner side of the water inlet pipe 5. The water outlet end of the water supply tank 35 is connected to the water outlet pipe 4. The water outlet pipe 4 discharges the liquid after heat exchange with the cylinder body. The coolant that has completed heat exchange flows from the water outlet end of the water supply tank 35 into the water outlet pipe 4 and finally returns to the water tank for cooling, forming a circulating cooling system.

[0037] One of the cylinder heads 6 has several connecting blocks 9 bolted to one side. A fixing bracket 8 is fixed between the connecting blocks 9 and sleeved on the outside of the piston rod 7. When the hydraulic cylinder is working, the piston rod 7 reciprocates inside the cylinder head 6. The scraper 10 fixed between the connecting blocks 9 is always in contact with the outer wall of the piston rod 7 to scrape off the dust or metal debris attached to the surface of the piston rod 7 and prevent contaminants from entering the cylinder body. The inner wall of the fixing bracket 8 is fixed with a scraper 10 that is slidably connected to the outside of the piston rod 7. The scraper 10 scrapes off the dirt on the outside of the piston rod 7. Lubricating grease is applied between the scraper 10 and the piston rod 7 to reduce friction. The scraper 10 is made of wear-resistant polyurethane.

[0038] In this embodiment, the hydraulic cylinder body 1 is a model FA-50-R30-S500FB-63 manufactured by Wuxi Pengchi Electromechanical Equipment Co., Ltd. Since the structure and operating principle of this model of hydraulic cylinder body 1 are existing technologies, its structure and operating principle will not be described in detail here.

[0039] Working principle: During operation, the hydraulic cylinder body 1 generates heat due to friction, pressure, and other factors, causing its temperature to rise. The cooling component 3 absorbs the heat dissipated by the cylinder body through circulating cooling water, thereby cooling the inside of the hydraulic cylinder body 1. The water pump delivers cooling water from the water tank to the inlet pipe 5 of the cooling component 3. After entering the cooling component 3, the cooling water exchanges heat with the cylinder body, absorbing its heat. The heated cooling water is then discharged from the outlet pipe 4, completing one cooling cycle. Continuous circulation of cooling water effectively controls the temperature of the hydraulic cylinder body 1.

[0040] Cooling water enters the connecting pipe 32 from the inlet pipe 5. It first passes through the filter screen 311 in the first connecting frame 31. The function of the filter screen 311 is to remove impurities in the water and prevent impurities from entering the water supply tank 35 and causing blockage. At the same time, the magnet 39 fixed on the inner wall of the placement frame 33 will attract iron filings in the water, further preventing iron filings from clogging the water supply tank 35 and ensuring that the cooling water can flow smoothly in the water supply tank 35, thereby better exchanging heat with the cylinder block.

[0041] When it is necessary to clean the dirt and iron filings inside the filter screen 311, since the inner side of the second connecting bracket 36 is threaded to the outer side of the connecting pipe 32, and the top outer side of the first connecting bracket 31 is fixed with a boss 37, the two ends of the boss 37 are respectively connected to one side of the connecting pipe 32 and the second connecting bracket 36, by rotating the second connecting bracket 36 to move it away from the outer side of the connecting pipe 32, the first connecting bracket 31 loses the fixing effect of the second connecting bracket 36, and the first connecting bracket 31 can be taken out from the connecting pipe 32 to clean the dirt and iron filings inside the filter screen 311. After cleaning, the first connecting bracket 31 is reinserted into the connecting pipe 32, and the second connecting bracket 36 is rotated to make it threadedly connected to the connecting pipe 32 to clamp and fix the first connecting bracket 31.

[0042] To prevent cooling water from leaking at the connection, a first sealing ring is fixed on one side of the limiting platform 310 and fits against the bottom side of the first connecting frame 31. A second sealing ring is fixed on the inner wall of the second connecting frame 36 and fits against the side of the boss 37. The first sealing ring can prevent cooling water from leaking from the bottom gap between the first connecting frame 31 and the connecting pipe 32, and the second sealing ring can prevent cooling water from leaking from the gap between the second connecting frame 36 and the boss 37, thus ensuring the sealing of the cooling component 3.

[0043] When the hydraulic cylinder is working, the piston rod 7 will reciprocate linearly. Its outer side is easily contaminated with dust, oil and other dirt. Several connecting blocks 9 are bolted to one side of the cylinder head 6. A fixing bracket 8 is fixed between the connecting blocks 9 and sleeved on the outer side of the piston rod 7. A scraper 10 is fixed to the inner wall of the fixing bracket 8 and slidably connected to the outer side of the piston rod 7. When the piston rod 7 moves, the scraper 10 will slide relative to the piston rod 7, thereby scraping away the dirt on the outer side of the piston rod 7, keeping the surface of the piston rod 7 clean, reducing the impact of dirt on the movement of the piston rod 7, and extending the service life of the hydraulic cylinder. When the scraper 10 is damaged, it is only necessary to remove the bolts on one side of the multiple connecting blocks 9 to remove the fixing bracket 8 and the scraper 10 for replacement.

[0044] In summary, the cooling component 3 utilizes circulating cooling water to absorb the heat emitted by the cylinder body. The continuous circulation of cooling water can effectively control the temperature of the hydraulic cylinder body 1. After the cooling water enters the connecting pipe 32 from the inlet pipe 5, it first passes through the filter screen 311 in the first connecting frame 31 to remove impurities in the water, preventing impurities from entering the water supply tank 35 and causing blockage. This ensures that the initial stage of cooling water circulation is unobstructed. The magnet 39 fixed on the inner wall of the placement frame 33 will attract iron filings in the water, further preventing iron filings from clogging the water supply tank 35 and avoiding the impact of excessive temperature on the normal working performance and service life of the hydraulic cylinder body 1.

[0045] When it is necessary to clean the dirt and iron filings inside the filter screen 311, since the second connecting bracket 36 is connected to the connecting pipe 32 by a thread, and the first connecting bracket 31 is associated with both by the boss 37, the first connecting bracket 31 can be easily removed from the connecting pipe 32 for cleaning by rotating the second connecting bracket 36 to make it separate from the connecting pipe 32. After cleaning, it can be reinstalled and fixed. The operation is convenient and quick, and the filter screen 311 can be maintained in a timely manner to ensure its filtration effect.

[0046] When the hydraulic cylinder body 1 is working, the piston rod 7 makes a reciprocating linear motion. Its outer side is easily contaminated with dust, oil and other dirt. The inner wall of the fixing bracket 8, which is fixed by the connecting block 9 on one side of the cylinder head 6, is provided with a scraper 10. When the piston rod 7 moves, the scraper 10 slides relative to the piston rod 7, which can scrape off the dirt on the outer side of the piston rod 7 in time and keep its surface clean.

[0047] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A hydraulic cylinder with a cooling function, comprising a hydraulic cylinder body (1), characterized in that, The hydraulic cylinder body (1) has a cylinder body on one side, and cylinder covers (6) are connected to both ends of the cylinder body. One end of the cylinder cover (6) is sealed and movable through a piston rod (7). A cooling component (3) is provided on the outside of the cylinder body, and the cooling component (3) is used to cool the inside of the hydraulic cylinder body (1); The cooling component (3) includes a housing (34), and a plurality of water supply channels (35) are provided inside the housing (34). The water inlet end of the water supply channel (35) is connected to a connecting pipe (32). A limiting ring (38) is fixed on the outside of the connecting pipe (32), and a limiting platform (310) is fixed on the inner wall of the connecting pipe (32). A first connecting frame (31) located on one side of the limiting platform (310) is inserted into the inner side of the connecting tube (32). A filter screen (311) is fixed to the bottom of the inner wall of the first connecting frame (31). A placement frame (33) is fixed to one side of the filter screen (311). A magnet (39) is fixed to the inner wall of the placement frame (33).

2. A hydraulic cylinder with cooling function according to claim 1, characterized in that, The first connecting frame (31) has a boss (37) fixed on the outer side of its top. The two ends of the boss (37) are respectively connected to the connecting pipe (32) and the side of the second connecting frame (36).

3. A hydraulic cylinder with cooling function according to claim 2, characterized in that, One side of the limiting platform (310) is fixed with a first sealing ring that fits against the bottom side of the first connecting frame (31), and the inner wall of the second connecting frame (36) is fixed with a second sealing ring that fits against the side of the boss (37).

4. A hydraulic cylinder with cooling function according to claim 3, characterized in that, The inner side of the second connecting bracket (36) is threaded to the outer side of the connecting pipe (32), and the inner wall of the housing (34) is fixedly sleeved to the outer side of the cylinder body.

5. A hydraulic cylinder with cooling function according to claim 4, characterized in that, One end of the second connecting frame (36) is connected to a water inlet pipe (5). After the liquid is filtered by the first connecting frame (31), it enters the inside of the water supply tank (35).

6. A hydraulic cylinder with cooling function according to claim 5, characterized in that, The water outlet of the water tank (35) is connected to a water outlet pipe (4), which discharges the liquid that has undergone heat exchange with the cylinder.

7. A hydraulic cylinder with cooling function according to claim 1, characterized in that, One of the cylinder heads (6) has several connecting blocks (9) connected to one side by bolts, and a fixing bracket (8) is fixed between the connecting blocks (9) and sleeved on the outside of the piston rod (7).

8. A hydraulic cylinder with cooling function according to claim 7, characterized in that, The inner wall of the fixed frame (8) is fixed with a scraper (10) that is slidably connected to the outside of the piston rod (7).

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