Quenching oil filtering device

Abstract

According to the quenching oil filtering device, a first opening and an end cover used for covering the first opening are arranged at the top of a machine shell, the end cover is detachably connected with the top of the machine shell through a locking mechanism, a centrifugal barrel is arranged in the machine shell, a second opening is formed in the top of the centrifugal barrel, and a plurality of clamps are arranged on the peripheral side of the bottom face of the end cover; the clamp extends into the centrifugal barrel through the second opening and is used for clamping filter paper, the filter paper is laid on the inner side wall of the centrifugal barrel, a feeding barrel is fixedly connected to the interior of the centrifugal barrel in the axial direction, a conveying opening is formed in the side wall of the feeding barrel, the lower portion of the feeding barrel is rotationally connected with the bottom of the machine shell, and a feeding opening is formed in the bottom of the feeding barrel; a discharging port is formed in the side portion of the machine shell, a driving mechanism is arranged outside the machine shell and used for driving the centrifugal barrel to rotate, and the bottom of the feeding barrel is connected with the driving mechanism. The centrifugal barrel does not need to be cleaned, only the filter paper on the inner wall of the centrifugal barrel needs to be replaced, and the maintenance efficiency of the centrifugal barrel can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of quenching oil filtering devices, in particular to a quenching oil filtering device. Background Art

[0002] The quenching process in metal heat treatment can significantly improve the mechanical properties of metal materials, making them have higher hardness, strength and wear resistance. Quenching oil, as a commonly used cooling medium, plays a key role in the quenching process. However, with use, quenching oil will be contaminated by various pollutants and its performance will gradually decline. The emergence of quenching oil filtration devices can improve the performance of quenching oil.

[0003] Quenching oil filtering devices include pressure filtering devices, vacuum filtering devices, online filtering devices, centrifugal filtering devices, etc. Among them, centrifugal filtering devices are widely used because of their fast filtering speed and large processing capacity.

[0004] For example, in the patent with the announcement number CN210448361U, a high-efficiency filtration device for quenching oil is disclosed, which includes an oil delivery pipe, the upper end of which is inserted into a centrifugal barrel, a driving motor is installed at the bottom of the centrifugal barrel, an oil outlet is provided on the centrifugal barrel, an oil collecting cover is provided on the outside of the centrifugal barrel, the oil delivery pipe also needs to pass through the oil collecting cover, an oil collecting tank is provided on the oil collecting cover, and a second oil outlet pipe is provided on the oil collecting tank. The patent drives the centrifugal barrel to rotate through the driving motor, and uses centrifugal force to filter the quenching oil.

[0005] In the above patent, as the use time increases, the oil outlet holes on the side wall of the centrifugal barrel will be blocked by impurities in the quenching oil, which will lead to a decrease in filtration efficiency. In this regard, it is necessary to clean and maintain the centrifugal barrel. How to improve the maintenance efficiency of the centrifugal barrel is a technical problem that needs to be solved at present. Summary of the invention

[0006] The present invention aims at the above-mentioned deficiencies in the prior art and provides a quenching oil filtering device. The present invention does not need to clean the centrifugal barrel, but only needs to replace the filter paper on the inner wall of the centrifugal barrel. The present invention can improve the maintenance efficiency of the centrifugal barrel.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A quenching oil filtering device comprises a casing, a first opening and an end cover for covering the first opening is provided on the top of the casing, the end cover is detachably connected to the top of the casing by a locking mechanism, a centrifugal barrel is provided inside the casing, a second opening is provided on the top of the centrifugal barrel, a plurality of clamps are provided on the circumferential side of the bottom surface of the end cover, the clamps extend into the interior of the centrifugal barrel through the second opening, the clamps are used to clamp filter paper, the filter paper is laid on the inner side wall of the centrifugal barrel, a feed barrel is fixedly connected to the interior of the centrifugal barrel along the axial direction, a feed port is provided on the side wall of the feed barrel, the lower part of the feed barrel is rotatably connected to the bottom of the casing, a feed port is provided at the bottom of the feed barrel, a discharge port is provided on the side of the casing, a driving mechanism is provided outside the casing, the driving mechanism is used to drive the centrifugal barrel to rotate, and the bottom of the feed barrel is connected to the driving mechanism.

[0009] Furthermore, the locking mechanism includes a fixed column, a movable column, a locking elastic member, a rotating ring, a driving rod, a sliding seat, and a locking tongue;

[0010] A fixed column is arranged on the top surface of the end cover, an active cavity is arranged inside the fixed column, and a limiting hole is arranged on the side of the fixed column, and the limiting hole is communicated with the active cavity;

[0011] The movable column is vertically slidably connected to the movable cavity, a limit rod is provided on the side of the movable column, the limit rod is vertically slidably matched with the limit hole, the lower part of the movable column extends out of the movable cavity, and an oblique groove is provided on the lower side wall of the movable column;

[0012] The locking elastic member is arranged in the movable cavity, and the locking elastic member is used to push the movable column downward;

[0013] The rotating ring is sleeved at the lower part of the movable column, the inner wall of the rotating ring is provided with a sliding pin, the sliding pin is slidably matched with the inclined groove, the outer wall of the rotating ring is rotatably connected with at least two driving rods, the driving rod is rotatably connected with a sliding seat at one end away from the rotating ring, and the sliding seat is slidably connected with the end cover along the radial direction;

[0014] A locking tongue is arranged on the sliding seat, and an annular locking groove is arranged on the side wall of the first opening along the circumferential direction. When the limiting rod is located at the bottom of the limiting hole, the sliding pin is located at the top of the inclined groove, and the locking tongue is inserted into the annular locking groove.

[0015] Furthermore, the clamp is provided on the slide seat.

[0016] Furthermore, the clamp includes a first clamp rod and a second clamp rod arranged side by side, a clamp groove is provided between the first clamp rod and the second clamp rod, the filter paper is arranged in the clamp groove, and a hidden groove is provided on the side wall of the centrifugal barrel, and the first clamp rod is arranged in the hidden groove.

[0017] Furthermore, the bottom of the first clamp rod is rotatably connected to an expansion rod, the top of the expansion rod is provided with an extension rod on the side close to the hidden groove, the bottom of the first clamp rod is provided with an expansion groove on the side close to the hidden groove, the expansion groove is used to accommodate the extension rod, and an expansion elastic member is provided in the expansion groove, the expansion elastic member is used to push the extension rod outward, when the first clamp rod is located in the hidden groove, the outer side wall of the extension rod abuts against the groove wall of the hidden groove, the extension rod is located in the expansion groove, and the expansion elastic member is in a compressed energy storage state.

[0018] Furthermore, the second clamping rod is slidably connected to the sliding seat, and the second clamping rod is provided with an adjustment seat at the upper end on the side away from the first clamping rod, and the adjustment pin is provided on the adjustment seat. The driving rod is rotatably connected to the sliding seat through a pin shaft at the end away from the rotating ring, and the driving rod is provided with an arc groove at the end away from the rotating ring, and a pin shaft is provided on the concave side of the arc groove. The distance from the middle of the arc groove to the pin shaft is smaller than the distance from the end of the arc groove to the pin shaft, and the adjustment pin and the arc groove are slidably matched.

[0019] Furthermore, a supporting groove is provided on the top of the feed cylinder, and the lower part of the movable column cooperates with the supporting groove.

[0020] Furthermore, the end cover is provided with at least two radial holes, the sliding seat is slidably matched with the radial holes, the top of the sliding seat is provided with an anti-fall block, the anti-fall block is slidably connected to the top surface of the end cover, and the top surface of the end cover is provided with a closing cover, which is used to cover the anti-fall block and the radial holes.

[0021] Furthermore, the middle portion of the bottom surface of the casing is higher than the periphery of the bottom surface of the casing, and the discharge port is arranged at the bottom of the side wall of the casing.

[0022] Furthermore, the driving mechanism includes a driving motor, a driving wheel, a driven wheel, and a transmission belt. A motor seat is provided at the bottom of the casing, a driving motor is provided on the motor seat, a driving wheel is provided at the output end of the driving motor, and a driven wheel is provided at the bottom of the feed barrel. The driving wheel is connected to the driven wheel through a transmission belt.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention changes the feeding method of quenching oil. The quenching oil enters from the bottom of the centrifugal barrel, so that the top of the centrifugal barrel will not be blocked by the pipeline. Then, the top of the centrifugal barrel and the top of the casing can be sealed together with the end cover. The end cover can be opened to expose the inside of the centrifugal barrel. Because the inner wall of the centrifugal barrel is paved with filter paper, the quenching oil can be filtered by the filter paper. When maintaining the centrifugal barrel, there is no need to clean the centrifugal barrel. It is only necessary to open the end cover and replace the filter paper. The maintenance operation is simpler and is conducive to improving maintenance efficiency.

[0025] 2. The end cap of the present invention is locked with the housing through a locking mechanism. The locking mechanism is easy to operate. The locking can be released by lifting the limit rod in the locking mechanism; the locking can be achieved by loosening the limit rod. No fasteners such as screws and bolts are required, which is conducive to improving the efficiency of locking and unlocking the end cap, further improving the efficiency of replacing filter paper, and further improving the maintenance efficiency of the centrifugal barrel.

[0026] 3. Because the clamp is installed on the bottom of the end cover, when the end cover is removed, the end cover drives the clamp to move away together, and the clamp moves away together with the filter paper, realizing the synchronous action of removing the end cover and removing the filter paper. When closing the end cover, the end cover drives the clamp to enter the centrifugal barrel together, and the clamp drives the filter paper to enter the centrifugal barrel together, realizing the synchronous action of closing the end box and putting in the filter paper. It is beneficial to further improve the efficiency of replacing the filter paper and the maintenance efficiency of the centrifugal barrel.

[0027] 4. By setting the clamp on the bottom surface of the slide, when the locking mechanism is used to unlock the end cover, the slide drives the first clamp rod and the second clamp rod in the clamp to move radially inward together, and the first clamp rod and the second clamp rod clamp the filter paper away from the inner wall of the centrifuge barrel, so as to prevent the filter paper from being adhered to the inner wall of the centrifuge barrel by the quenching oil due to long-term use. After the filter paper leaves the inner wall of the centrifuge barrel, the end cover is lifted up, and the end cover drives the first clamp rod and the second clamp rod to move upward, and the first clamp rod and the second clamp rod can more conveniently carry the filter paper upward and away from the centrifuge barrel, reducing the risk of not being able to effectively replace the filter paper due to the adhesion of the filter paper to the centrifuge barrel, and improving the reliability of the operation of replacing the filter paper.

[0028] 5. The operation of the clamp carrying the filter paper close to or away from the inner wall of the centrifugal barrel can be synchronized with the radial movement of the slide. It has a compact structure and reliable movement. It does not require an additional power source, which is conducive to energy saving.

[0029] 6. By setting an expansion rod, an expansion slot, an extension rod, and an expansion elastic member at the bottom of the first clamp rod. When the locking mechanism is used to unlock the end cover, the first clamp rod gradually leaves the hidden slot of the centrifugal bucket, and the expansion rod deflects to the side away from the hidden slot, and the expansion rod drives the bottom of the filter paper to lift up. When the end cover is lifted up, the end cover drives the clamp to move up, and the clamp drives the filter paper to move up. Since the bottom of the filter paper is lifted, the impurities attached to the inner wall of the filter paper can be blocked by the bottom of the filter paper, preventing the impurities attached to the filter paper from falling into the centrifugal bucket, thereby avoiding contamination of the centrifugal bucket, thereby improving the maintenance effect of the centrifugal bucket.

[0030] 7. When the filter paper moves upward, since the bottom of the filter paper is held up by the expansion rod, the filter paper is not only clamped by the first clamp rod and the second clamp rod, but also supported by the expansion rod, which reduces the risk of the filter paper falling and improves the reliability of removing the filter paper.

[0031] 8. The state change of the expansion rod can follow the position of the first clamping rod, and there is no need to set up an additional power source to drive the expansion rod to change its state, which is conducive to energy saving.

[0032] 9. By providing an adjustment seat and an adjustment pin on the second clamping rod, and providing an arc groove at the end of the driving rod, when the locking mechanism is used to unlock the end cover, the filter paper is not only taken away from the inner wall of the centrifugal barrel by the first clamping rod and the second clamping rod, but the filter paper can also be further clamped by the first clamping rod and the second clamping rod. When the end cover is lifted upward, because the filter paper is further clamped by the first clamping rod and the second clamping rod, the risk of the filter paper falling from between the first clamping rod and the second clamping rod is further reduced, and the reliability of the filter paper replacement operation is further improved.

[0033] 10. During the centrifugal filtration of the quenching oil, the centrifugal barrel and the feed barrel rotate. Because the movable column is inserted into the supporting groove at the top of the feed barrel, the top of the feed barrel can be prevented from being deformed due to suspension, thereby improving the structural stability of the feed barrel and thus improving the stability and reliability of the entire device.

[0034] 11. Because the middle of the bottom surface of the casing is higher than the periphery of the bottom surface of the casing, the filtered quenching oil is more likely to gather around the bottom surface of the casing and then be discharged from the discharge port at the bottom of the side wall of the casing, which can reduce the gathering of the filtered quenching oil to the middle of the bottom surface of the casing, thereby reducing the risk of quenching oil leakage from the middle of the bottom surface of the casing and improving the reliability of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a stereoscopic diagram of a quenching oil filtering device;

[0036] Figure 2 It is a front view of a quenching oil filtering device;

[0037] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0038] Figure 4 for Figure 2 A partial enlarged view of point B in the middle;

[0039] Figure 5 for Figure 4 The state change diagram;

[0040] Figure 6 for Figure 2 A partial enlarged view of point C in the middle;

[0041] Figure 7 for Figure 6 The state change diagram;

[0042] Figure 8It is a three-dimensional diagram of the assembly of the centrifugal barrel, feed cylinder, end cover, clamp, and locking mechanism;

[0043] Fig. 9 Three-dimensional end cap and locking mechanism Figure 1 ;

[0044] Fig.10 for Fig. 9 The part at D in the middle is the larger picture;

[0045] Fig.11 Three-dimensional end cap and locking mechanism Figure 2 ;

[0046] Fig.12 for Fig.11 A partial enlarged view of point E in the middle;

[0047] Fig.13 Three-dimensional end cap and locking mechanism Figure 3 ;

[0048] Fig.14 for Fig.13 A partial enlarged view of point F in the middle.

[0049] Description of reference numerals:

[0050] 1- housing, 11- annular lock groove, 12- motor seat, 13- discharge port,

[0051] 2-end cover, 21-radial hole, 22-closure cover,

[0052] 31-fixed column, 311-movable cavity, 312-limiting hole, 32-movable column, 321-limiting rod, 322-oblique groove, 33-first spring, 34-rotating ring, 341-sliding pin, 35-driving rod, 351-pin shaft, 352-arc groove, 36-sliding seat, 361-anti-falling block, 362-sliding rail, 37-lock tongue,

[0053] 4-centrifugal bucket, 41-hidden tank,

[0054] 5-feeding cylinder, 51-feeding port, 52-feeding port, 53-supporting slot,

[0055] 61-driving motor, 62-driving wheel, 63-driven wheel, 64-transmission belt,

[0056] 7- Filter paper,

[0057] 81-first clamping rod, 811-expansion slot, 8111-second spring, 82-second clamping rod, 821-adjusting seat, 8211-adjusting pin, 83-clamping slot, 84-expansion rod, 841-extension rod. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0059] Embodiment 1:

[0060] A quenching oil filtering device comprises a housing 1, a first opening is provided at the top of the housing 1, and an annular locking groove 11 is provided on the side wall of the first opening along the circumferential direction. Figure 1 and Figure 2 The top of the casing 1 is also provided with an end cover 2, and the end cover 2 is detachably connected to the top of the casing 1 through a locking mechanism.

[0061] See also Figure 3 and Figure 4 as well as Fig.10 The locking mechanism includes a fixed column 31, a movable column 32, a locking elastic member, a rotating ring 34, a driving rod 35, a sliding seat 36, and a locking tongue 37. The fixed column 31 is fixedly installed on the top surface of the end cover 2, and an active cavity 311 is provided inside the fixed column 31. The active cavity 311 passes downward to the bottom surface of the end cover 2. A limiting hole 312 is provided on the side of the fixed column 31, and the limiting hole 312 is connected to the active cavity 311. The movable column 32 is vertically slidably connected to the active cavity 311. A limiting rod 321 is fixedly installed on the side of the movable column 32, and the limiting rod 321 is vertically slidably matched with the limiting hole 312. The lower part of the movable column 32 extends out of the active cavity 311, and an oblique groove 322 is provided on the lower side wall of the movable column 32. The locking elastic member adopts a first spring 33, which is arranged in the active cavity 311, and the first spring 33 is used to push the movable column 32 downward. The rotating ring 34 is sleeved on the lower part of the movable column 32, and a sliding pin 341 is fixedly installed on the inner wall of the rotating ring 34, and the sliding pin 341 is slidably matched with the inclined groove 322. The outer wall of the rotating ring 34 is rotatably connected with four driving rods 35, and the driving rod 35 is rotatably connected with a sliding seat 36 at one end away from the rotating ring 34. The sliding seat 36 is slidably matched with the radial hole 21 set on the end cover 2, and an anti-falling block 361 is fixedly installed on the top of the sliding seat 36. The anti-falling block 361 is slidably matched with the top surface of the end cover 2, and a closed cover 22 is fixedly installed on the top surface of the end cover 2. The closed cover 22 is used to cover the anti-falling block 361 and the radial hole 21. The locking tongue 37 is arranged on the sliding seat 36, and the locking tongue 37 and the sliding seat 36 are an integral structure.

[0062] The locking mechanism works as follows:

[0063] (1) When the end cover 2 needs to be removed:

[0064] The worker overcomes the elastic force of the first spring 33 and pulls the limit rod 321 upward. The limit rod 321 moves up to the top of the limit hole 312. The limit rod 321 drives the movable column 32 to move up. The movable column 32 drives the inclined slot 322 to move up. The inclined slot 322 and the sliding pin 341 slide relative to each other. The sliding pin 341 moves from the top of the inclined slot 322 to the bottom of the inclined slot 322. Since the limit rod 321 can only slide up and down in the limit hole 312, the movable column 32 fixedly installed with the limit rod 321 can only slide up and down in the movable cavity 311, so the inclined slot 322 can only slide up and down. When the sliding pin 341 moves from the top of the inclined slot 322 to the bottom of the inclined slot 322, the sliding pin 341 undergoes circumferential displacement, and the rotating ring 34 fixedly installed with the sliding pin 341 rotates around the movable column 32. The rotating ring 34 drives one end of the driving rod 35 to rotate together, so that the other end of the driving rod 35 pulls the slide 36 to move radially inward, and the slide 36 drives the locking tongue 37 to move inward, so that the locking tongue 37 retreats out of the annular locking groove 11, and the locking tongue 37 retreats to the bottom surface of the end cover 2, releasing the locking state between the locking tongue 37 and the annular locking groove 11. At this time, the worker continues to lift the end cover 2 to remove the end cover 2 from the housing 1.

[0065] (2) When the end cover 2 needs to be locked:

[0066] The worker keeps pulling the limit rod 321 upward, and the lock tongue 37 is located below the bottom surface of the end cover 2. Then the worker puts the end cover 2 into the first opening of the housing 1, so that the position of the lock tongue 37 corresponds to the position of the annular lock groove 11. Finally, the worker releases the pull on the limit rod 321. Under the push of the elastic force of the first spring 33, the movable column 32 slides down in the movable cavity 311, and the movable column 32 drives the limit rod 321 to move downward, so that the limit rod 321 slides down to the bottom of the limit hole 312. The movable column 32 also drives the inclined groove 322 to move downward, so that the sliding pin 341 moves from the bottom of the inclined groove 322 to the top of the inclined groove 322. Since the inclined groove 322 can only move up and down in the vertical direction, the inclined groove 322 will not rotate, so that when the sliding pin 341 moves from the bottom of the inclined groove 322 to the top of the inclined groove 322, the sliding pin 341 moves circumferentially. The rotating ring 34 fixedly installed with the sliding pin 341 rotates around the movable column 32, and the rotating ring 34 drives one end of the driving rod 35 to rotate together. The other end of the driving rod 35 pushes the sliding seat 36 to move radially outward, and the sliding seat 36 drives the locking tongue 37 to move outward, so that the locking tongue 37 is inserted into the annular locking groove 11. At this time, the upper groove wall of the annular locking groove 11 blocks the locking tongue 37 from moving upward, and the lower groove wall of the annular locking groove 11 blocks the locking tongue 37 from falling, so that the end cover 2 is locked in the first opening of the casing 1.

[0067] See also Figure 2A centrifugal barrel 4 is provided inside the casing 1. The centrifugal barrel 4 is a cylindrical structure with filter holes on the side wall. A feed barrel 5 is provided inside the centrifugal barrel 4 along the axial direction. The feed barrel 5 and the centrifugal barrel 4 are an integral structure. A feed port 51 is provided on the side wall of the feed barrel 5. The feed port 51 is connected to the inside of the centrifugal barrel 4. The lower part of the feed barrel 5 is rotatably connected to the bottom of the casing 1. Figure 8 A feed port 52 is provided at the bottom of the feed cylinder 5 , and the feed port 52 is connected to an external quenching oil supply pipeline. The quenching oil can enter the interior of the centrifugal barrel 4 through the feed port 52 and the feed port 51 in sequence.

[0068] See also Figure 2 A driving mechanism is provided on the outside of the casing 1, and the driving mechanism is used to drive the feed barrel 5 to rotate, and the feed barrel 5 drives the centrifugal barrel 4 to rotate together, so that the quenching oil inside the centrifugal barrel 4 is centrifugally swung. This embodiment 1 provides a structural form of the driving mechanism: the driving mechanism includes a driving motor 61, a driving wheel 62, a driven wheel 63, and a transmission belt 64. The bottom of the casing 1 is fixedly mounted with a motor base 12, and the motor base 12 is fixedly mounted with a driving wheel 62. The output end of the driving motor 61 is fixedly mounted with a driving wheel 62, and the bottom of the feed barrel 5 is fixedly mounted with a driven wheel 63. The driving wheel 62 is driven by the driven wheel 63 through the transmission belt 64.

[0069] The working principle of the above-mentioned driving mechanism is: the driving motor 61 drives the driving wheel 62 to rotate, the driving wheel 62 drives the driven wheel 63 to rotate through the transmission belt 64, the driven wheel 63 drives the feed barrel 5 to rotate, and the feed barrel 5 drives the centrifugal barrel 4 to rotate. In addition to the structural form of the above-mentioned driving mechanism, other mechanisms that can realize the rotation of the feed barrel 5 can also be used as the driving mechanism, such as a chain transmission mechanism, a gear set mechanism, etc.

[0070] The top of the centrifugal bucket 4 is provided with a second opening. Fig. 9 , Fig.11 and Fig.13 Four clamps are installed around the bottom surface of the end cover 2, and the clamps extend into the interior of the centrifugal barrel 4 through the second opening. The clamps are used to clamp the filter paper 7, and the filter paper 7 is laid on the inner wall of the centrifugal barrel 4. In this embodiment 1, the clamp includes a first clamp rod 81 and a second clamp rod 82 arranged side by side, and a clamp groove 83 is provided between the first clamp rod 81 and the second clamp rod 82. The clamp groove 83 is used to clamp the filter paper 7, and the side wall of the centrifugal barrel 4 is provided with a hidden groove 41, and the first clamp rod 81 is arranged in the hidden groove 41.

[0071] See also Figure 2The middle of the bottom surface of the casing 1 is higher than the periphery of the bottom surface of the casing 1, the lower part of the feed barrel 5 is rotatably connected to the middle of the bottom surface of the casing 1, and a discharge port 13 is provided at the bottom of the side wall of the casing 1. Because the middle of the bottom surface of the casing 1 is higher than the periphery of the bottom surface of the casing 1, the filtered quenching oil is more likely to gather around the bottom surface of the casing 1 and then be discharged from the discharge port 13 at the bottom of the side wall of the casing 1, which can reduce the gathering of the filtered quenching oil to the middle of the bottom surface of the casing 1, thereby reducing the risk of quenching oil leaking from the middle of the bottom surface of the casing 1 and improving the reliability of the entire device.

[0072] The working principle of this embodiment 1 is as follows:

[0073] (1) When filtering quenching oil:

[0074] First, a container is placed below the discharge port 13 to receive the filtered quenching oil.

[0075] Then, the feed port 52 at the bottom of the feed pipe is connected to the oil pipeline, and an oil pump is installed on the oil pipeline. Because the feed pipe is driven to rotate by the driving mechanism, the feed port 52 is connected to the oil pipeline through a rotary joint to achieve relative rotation between the feed pipe and the oil pipeline. The rotary joint is an existing pipeline connection device that can be purchased directly. The two pipelines connected by the rotary joint can rotate relative to each other.

[0076] Finally, the oil pump is started, and the oil pump delivers the quenching oil to be filtered into the feed pipe, and the quenching oil enters the centrifugal barrel 4 through the feed port 51 on the wall of the feed pipe. At the same time, the driving mechanism is started to drive the feed pipe to rotate, and the feed pipe drives the centrifugal barrel 4 to rotate. The quenching oil entering the centrifugal barrel 4 is thrown onto the surface of the filter paper 7 under the action of centrifugal force. After being filtered by the filter paper 7, the quenching oil enters the space between the centrifugal barrel 4 and the casing 1, and the filtered quenching oil is discharged through the discharge port 13.

[0077] In addition, during the rotation of the centrifugal bucket 4, because the first clamping rod 81 in the clamp is located in the hidden groove 41, and the first clamping rod 81 is installed on the bottom surface of the end cover 2, and the locking tongue 37 on the peripheral side of the end cover 2 is located in the annular locking groove 11 of the casing 1, the centrifugal bucket 4 drives the first clamping rod 81 to rotate together, and then drives the end cover 2 and the locking tongue 37 to rotate together, and the locking tongue 37 can rotate in the annular locking groove 11.

[0078] (2) When taking out the used filter paper 7:

[0079] First, the worker overcomes the elastic force of the first spring 33 and pulls up the limit rod 321. The limit rod 321 drives the movable column 32 to move upward, and the sliding pin 341 moves from the top of the inclined groove 322 to the bottom of the inclined groove 322. The sliding pin 341 and the rotating ring 34 rotate around the movable column 32. The rotating ring 34 drives the driving rod 35 to deflect. The driving rod 35 pulls the sliding seat 36 to move radially inward. The sliding seat 36 drives the locking tongue 37 to move radially inward. The locking tongue 37 exits the annular locking groove 11, thereby releasing the locking state between the end cover 2 and the casing 1.

[0080] Then, the worker lifts the end cover 2, and the end cover 2 drives the first clamp rod 81 and the second clamp rod 82 in the clamp to move upward, and the filter tank clamped between the first clamp rod 81 and the second clamp rod 82 moves upward together with the first clamp rod 81 and the second clamp rod 82, so that the used filter tank leaves the centrifugal barrel 4.

[0081] Finally, the worker pulls out the filter paper 7 from between the first clamping rod 81 and the second clamping rod 82 .

[0082] (3) When replacing the new filter paper 7:

[0083] First, the worker inserts new filter paper 7 between the first clamping rod 81 and the second clamping rod 82 .

[0084] Then, the worker lowers the end cover 2 while pulling the limit rod 321 upward, so that the first clamping rod 81 is inserted downward into the hidden groove 41 of the side wall of the centrifugal bucket 4, and the position of the locking tongue 37 corresponds to the position of the annular locking groove 11.

[0085] Finally, the worker releases the pull on the limit rod 321, and under the push of the elastic force of the first spring 33, the movable column 32 slides down in the movable cavity 311, and the limit rod 321 slides down to the bottom of the limit hole 312, and the sliding pin 341 moves from the bottom of the inclined groove 322 to the top of the inclined groove 322, and the sliding pin 341 and the rotating ring 34 rotate in the opposite direction around the movable column 32, and the movable ring drives the driving rod 35 to rotate in the opposite direction, and the driving rod 35 pushes the sliding seat 36 to move radially outward, and the sliding seat 36 drives the locking tongue 37 to move outward, so that the locking tongue 37 is inserted into the annular locking groove 11, thereby locking the end cover 2 and the centrifugal barrel 4.

[0086] According to the above working principle, it can be seen that this embodiment 1 has the following effects:

[0087] First, the present embodiment 1 changes the feeding method of the quenching oil. The quenching oil enters from the bottom of the centrifugal barrel 4, so that the top of the centrifugal barrel 4 will not be blocked by the pipeline. Then, the top of the centrifugal barrel 4 and the top of the casing 1 can be sealed together with the end cover 2. The end cover 2 is opened to expose the inside of the centrifugal barrel 4. Because the inner wall of the centrifugal barrel 4 is paved with filter paper 7, the quenching oil can be filtered by the filter paper 7. When maintaining the centrifugal barrel 4, there is no need to clean the centrifugal barrel 4. It is only necessary to open the end cover 2 and replace the filter paper 7. The maintenance operation is simpler and is conducive to improving the maintenance efficiency.

[0088] Second, the end cover 2 in the present embodiment 1 is locked with the housing 1 by a locking mechanism, and the locking mechanism is easy to operate. The locking can be released by lifting the limit rod 321 in the locking mechanism, and the locking can be achieved by loosening the limit rod 321. No fasteners such as screws and bolts are required, which is conducive to improving the efficiency of locking and unlocking the end cover 2, further improving the efficiency of replacing the filter paper 7, and further improving the maintenance efficiency of the centrifugal barrel 4.

[0089] Third, because the clamp is installed on the bottom surface of the end cover 2, when the end cover 2 is removed, the end cover 2 drives the clamp to move together, and the clamp moves together with the filter paper 7, realizing the synchronous action of removing the end cover 2 and removing the filter paper 7. When the end cover 2 is closed, the end cover 2 drives the clamp to enter the centrifugal barrel 4, and the clamp drives the filter paper 7 to enter the centrifugal barrel 4, realizing the synchronous action of closing the end box and putting in the filter paper 7. It is beneficial to further improve the efficiency of replacing the filter paper 7 and the maintenance efficiency of the centrifugal barrel 4.

[0090] Embodiment 2:

[0091] This embodiment 2 is further improved on the basis of embodiment 1:

[0092] See also Figure 3 A supporting groove 53 is provided on the top of the feed cylinder 5 , and the lower part of the movable column 32 cooperates with the supporting groove 53 .

[0093] The working principle of this embodiment 3 is as follows:

[0094] When the locking mechanism is used to unlock the end cover 2, the movable column 32 in the locking mechanism moves upward, and the movable column 32 that moves upward can leave the supporting groove 53 at the top of the feed barrel 5. When the easy-to-disassemble structure is used to lock the end cover 2, the movable column 32 in the locking mechanism moves downward, and the movable column 32 that moves downward is inserted into the supporting groove 53.

[0095] During the centrifugal filtration of the quenching oil, the centrifugal barrel 4 and the feed barrel 5 rotate. Since the movable column 32 is inserted into the supporting groove 53 at the top of the feed barrel 5, the top of the feed barrel 5 can be prevented from being deformed due to suspension, thereby improving the structural stability of the feed barrel 5 and further improving the stability and reliability of the entire device.

[0096] Embodiment 3:

[0097] This embodiment 3 is further improved on the basis of embodiment 1:

[0098] The top of the first clamping rod 81 and the top of the second clamping rod 82 in the clamp are both fixedly mounted on the bottom surface of the slide seat 36 .

[0099] The working principle of this embodiment 3 is as follows:

[0100] (1) When the end cover 2 is unlocked using the locking mechanism:

[0101] The slide 36 in the locking mechanism moves inward along the radial direction of the end cover 2. Because the first clamping rod 81 and the second clamping rod 82 in the clamp are both installed on the slide 36, the slide 36 drives the first clamping rod 81 and the second clamping rod 82 to move inward along the radial direction, and the filter paper 7 is clamped by the first clamping rod 81 and the second clamping rod 82 to leave the inner wall of the centrifugal bucket 4, so as to prevent the filter paper 7 from being adhered to the inner wall of the centrifugal bucket 4 by the quenching oil due to long-term use. After the filter paper 7 leaves the inner wall of the centrifugal bucket 4, the end cover 2 is lifted up, and the end cover 2 drives the first clamping rod 81 and the second clamping rod 82 to move upward, and the first clamping rod 81 and the second clamping rod 82 can more conveniently carry the filter paper 7 upward and away from the centrifugal bucket 4, thereby reducing the risk of the filter paper 7 not being able to be effectively replaced due to the adhesion of the filter paper 7 to the centrifugal bucket 4, and improving the reliability of the operation of replacing the filter paper 7.

[0102] (2) When the end cover 2 is locked using the locking mechanism:

[0103] The slide 36 in the locking mechanism moves outward in the radial direction of the end cover 2, and the slide 36 drives the first clamping rod 81 and the second clamping rod 82 to move outward in the radial direction. The first clamping rod 81 and the second clamping rod 82 clamp the filter paper 7 close to the inner wall of the centrifugal bucket 4. When the locking tongue 37 in the locking mechanism is inserted into the annular locking groove 11, the filter paper 7 is attached to the inner wall of the centrifugal bucket 4.

[0104] Through the above process, it can be known that the operation of the clamp carrying the filter paper 7 close to or away from the inner wall of the centrifugal barrel 4 can be synchronized with the radial movement of the slide 36, with a compact structure and reliable movement, without the need for an additional power source, which is conducive to energy saving.

[0105] Embodiment 4:

[0106] This embodiment 4 is further improved on the basis of embodiment 3:

[0107] See also Figure 6 and Fig.14 The bottom of the first clamping rod 81 is rotatably connected with an expansion rod 84. The top of the expansion rod 84 is provided with an extension rod 841 on the side close to the hidden groove 41, and the extension rod 841 and the expansion rod 84 are an integral structure. The bottom of the first clamping rod 81 is provided with an expansion groove 811 on the side close to the hidden groove 41, and the expansion groove 811 is used to accommodate the extension rod 841. An expansion elastic member is provided in the expansion groove 811, and the expansion elastic member can be a second spring 8111, one end of the second spring 8111 is welded and fixed to the groove wall of the expansion groove 811, and the other end of the second spring 8111 is in contact with the surface of the extension rod 841, and the second spring 8111 is used to push the extension rod 841 outward.

[0108] The working principle of this embodiment 4 is as follows:

[0109] (1) See Figure 6 to Figure 7 When the locking mechanism unlocks the end cover 2, the slide 36 in the locking mechanism moves radially inwardly along the end cover 2. Because the first clamping rod 81 and the second clamping rod 82 in the clamp are both mounted on the slide 36, the slide 36 drives the first clamping rod 81 and the second clamping rod 82 to move radially inwardly together, so that the first clamping rod 81 is pushed out of the hidden groove 41 on the side wall of the centrifugal bucket 4. At this time, the extension rod 841 at the upper end of the expansion rod 84 leaves the side wall of the hidden groove 41, and the extension rod 841 can leave the expansion groove 811 under the push of the second spring 8111, so that the expansion rod 84 is deflected to the side away from the hidden groove 41. At this time, see Figure 7 In the state shown, the expansion rod 84 drives the bottom of the filter paper 7 to rise.

[0110] At this time, when the end cover 2 is lifted upward, the end cover 2 drives the clamp to move upward, and the clamp drives the filter paper 7 to move upward. Since the bottom of the filter paper 7 is lifted, the impurities attached to the inner wall of the filter paper 7 can be blocked by the bottom of the filter paper 7, preventing the impurities attached to the filter paper 7 from falling into the centrifugal barrel 4, thereby avoiding contamination of the centrifugal barrel 4, thereby improving the maintenance effect of the centrifugal barrel 4.

[0111] Furthermore, when the filter paper 7 moves upward, since the bottom of the filter paper 7 is lifted up by the expansion rod 84, the filter paper 7 is not only clamped by the first clamp rod 81 and the second clamp rod 82, but also supported by the expansion rod 84, thereby reducing the risk of the filter paper 7 falling and improving the reliability of taking out the filter paper 7.

[0112] (2) See Figure 7 to Figure 6When the locking mechanism is used to lock the end cover 2, the slide seat 36 moves outward in the radial direction of the end cover 2, and the slide seat 36 drives the first clamping rod 81 and the second clamping rod 82 to move outward together. When the first clamping rod 81 enters the hidden groove 41 on the side wall of the centrifugal bucket 4, the expansion rod 84 at the bottom of the first clamping rod 81 also enters the hidden groove 41, and the extension rod 841 at the top of the expansion rod 84 gradually abuts against the groove wall of the hidden groove 41, so that the extension rod 841 overcomes the elastic force of the second spring 8111 and enters the expansion groove 811, so that the expansion rod 84 is in a vertical state, and the expansion rod 84 in the vertical state is hidden in the hidden groove 41, so that the bottom of the filter paper 7 falls back, and the filter paper 7 that falls back can fit the inner wall of the centrifugal bucket 4 more closely, so as to improve the centrifugal filtration effect of the quenching oil during centrifugal filtration.

[0113] In the above Figure 6 to Figure 7 ,or, Figure 7 to Figure 6 During the state change process, the state change of the expansion rod 84 can follow the position of the first clamping rod 81, and there is no need to set up an additional power source to drive the expansion rod 84 to change the state, which is conducive to energy saving.

[0114] Embodiment 5:

[0115] This embodiment 5 is further improved on the basis of embodiment 3 or embodiment 4:

[0116] See also Fig.12 The bottom surface of the slide seat 36 is fixedly mounted with a slide rail 362, the top of the second clamping rod 82 is slidably connected to the slide rail 362, the second clamping rod 82 is fixedly mounted with an adjustment seat 821 at the upper end of the side away from the first clamping rod 81, and an adjustment pin 8211 is fixedly mounted on the adjustment seat 821. The driving rod 35 is rotatably connected to the slide seat 36 through a pin shaft 351 at the end away from the rotating ring 34, the driving rod 35 is provided with an arc groove 352 at the end away from the rotating ring 34, and a pin shaft 351 is provided on the concave side of the arc groove 352, the distance from the middle of the arc groove 352 to the pin shaft 351 is smaller than the distance from the end of the arc groove 352 to the pin shaft 351, and the adjustment pin 8211 is slidably matched with the arc groove 352.

[0117] The working principle of this embodiment 5 is as follows:

[0118] (1) See Figures 4 to 5When the locking mechanism unlocks the end cover 2, the slide 36 in the locking mechanism moves inward along the radial direction of the end cover 2, and the slide 36 drives the first clamping rod 81 and the second clamping rod 82 to leave the inner wall of the centrifugal bucket 4, and the first clamping rod 81 and the second clamping rod 82 drive the filter paper 7 to leave the inner wall of the centrifugal bucket 4. At the same time, the driving rod 35 and the slide 36 rotate relative to each other with the pin shaft 351 as the rotation center, and the adjustment pin 8211 slides from the middle of the arc groove 352 to the end of the arc groove 352. Since the distance from the middle of the arc groove 352 to the pin shaft 351 is smaller than the distance from the end of the arc groove 352 to the pin shaft 351, the arc groove 352 pushes the adjustment pin 8211 away from the pin shaft 351, and the adjustment pin 8211 drives the adjustment seat 821 and the second clamping rod 82 to approach the first clamping rod 81, so that the distance between the first clamping rod 81 and the second clamping rod 82 is reduced, so that the filter paper 7 is further clamped by the first clamping rod 81 and the second clamping rod 82.

[0119] When the end cover 2 is lifted upward, because the filter paper 7 is further clamped by the first clamping rod 81 and the second clamping rod 82, the risk of the filter paper 7 falling between the first clamping rod 81 and the second clamping rod 82 is further reduced, and the reliability of the operation of replacing the filter paper 7 is further improved.

[0120] (2) See Figure 5 to Figure 4 The state changes, when the detachable structure locks the end cover 2, the slide 36 in the locking mechanism moves radially outward along the end cover 2, and the slide 36 drives the first clamping rod 81, the second clamping rod 82 and the filter paper 7 to approach the inner wall of the centrifugal barrel 4. At the same time, the driving rod 35 and the slide 36 rotate relative to each other in opposite directions with the pin shaft 351 as the rotation center, so that the adjusting pin 8211 slides from the end of the arc groove 352 to the middle of the arc groove 352. Since the distance from the middle of the arc groove 352 to the pin shaft 351 is smaller than the distance from the end of the arc groove 352 to the pin shaft 351, the arc groove 352 drives the adjusting pin 8211 to approach the pin shaft 351, and the adjusting pin 8211 drives the adjusting seat 821 and the second clamping rod 82 away from the first clamping rod 81, so that the distance between the first clamping rod 81 and the second clamping rod 82 increases. Although the distance between the first clamping rod 81 and the second clamping rod 82 increases and the clamping force on the filter paper 7 decreases, in the subsequent centrifugal filtration process, the quenching oil pushes the filter paper 7 outward under the action of centrifugal force, so the filter paper 7 can still fit on the inner wall of the centrifugal barrel 4 and will not hinder the filtering operation of the quenching oil.

[0121] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A quenching oil filtering device, comprising a casing, a centrifugal bucket is arranged inside the casing, a driving mechanism is arranged outside the casing, the driving mechanism is used to drive the centrifugal bucket to rotate, and a discharge port is arranged on the side of the casing. It is characterized in that The top of the casing is provided with a first opening and an end cover for covering the first opening, the end cover is detachably connected to the top of the casing by a locking mechanism, the top of the centrifugal barrel is provided with a second opening, a plurality of clamps are provided on the circumferential side of the bottom surface of the end cover, the clamps extend into the interior of the centrifugal barrel through the second opening, the clamps are used to clamp filter paper, the filter paper is laid on the inner side wall of the centrifugal barrel, a feed barrel is axially fixedly connected to the interior of the centrifugal barrel, a feed port is provided on the side wall of the feed barrel, the lower part of the feed barrel is rotatably connected to the bottom of the casing, a feed port is provided at the bottom of the feed barrel, and the bottom of the feed barrel is connected to the driving mechanism.

2. A quenching oil filtering device as claimed in claim 1, It is characterized in that The locking mechanism includes a fixed column, a movable column, a locking elastic member, a rotating ring, a driving rod, a sliding seat, and a locking tongue; A fixed column is arranged on the top surface of the end cover, an active cavity is arranged inside the fixed column, and a limiting hole is arranged on the side of the fixed column, and the limiting hole is communicated with the active cavity; The movable column is vertically slidably connected to the movable cavity, a limit rod is provided on the side of the movable column, the limit rod is vertically slidably matched with the limit hole, the lower part of the movable column extends out of the movable cavity, and an oblique groove is provided on the lower side wall of the movable column; The locking elastic member is arranged in the movable cavity, and the locking elastic member is used to push the movable column downward; The rotating ring is sleeved at the lower part of the movable column, the inner wall of the rotating ring is provided with a sliding pin, the sliding pin is slidably matched with the inclined groove, the outer wall of the rotating ring is rotatably connected with at least two driving rods, the driving rod is rotatably connected with a sliding seat at one end away from the rotating ring, and the sliding seat is slidably connected with the end cover along the radial direction; A locking tongue is arranged on the sliding seat, and an annular locking groove is arranged on the side wall of the first opening along the circumferential direction. When the limiting rod is located at the bottom of the limiting hole, the sliding pin is located at the top of the inclined groove, and the locking tongue is inserted into the annular locking groove.

3. A quenching oil filtering device as claimed in claim 2, It is characterized in that The clamp is arranged on the sliding seat.

4. A quenching oil filtering device as claimed in claim 3, It is characterized in that The clamp comprises a first clamp rod and a second clamp rod arranged side by side, a clamp groove is arranged between the first clamp rod and the second clamp rod, the filter paper is arranged in the clamp groove, a hidden groove is arranged on the side wall of the centrifugal barrel, and the first clamp rod is arranged in the hidden groove.

5. A quenching oil filtering device as claimed in claim 4, It is characterized in that The bottom of the first clamping rod is rotatably connected to an expansion rod, and the top of the expansion rod is provided with an extension rod on the side close to the hidden groove. The bottom of the first clamping rod is provided with an expansion groove on the side close to the hidden groove. The expansion groove is used to accommodate the extension rod. An expansion elastic part is provided in the expansion groove. The expansion elastic part is used to push the extension rod outward. When the first clamping rod is located in the hidden groove, the outer side wall of the extension rod abuts against the groove wall of the hidden groove, the extension rod is located in the expansion groove, and the expansion elastic part is in a compressed energy storage state.

6. A quenching oil filtering device as claimed in claim 4, It is characterized in that The second clamping rod is slidably connected to the sliding seat, and the second clamping rod is provided with an adjustment seat at the upper end on the side away from the first clamping rod, and an adjustment pin is provided on the adjustment seat. The driving rod is rotatably connected to the sliding seat through a pin shaft at the end away from the rotating ring, and the driving rod is provided with an arc groove at the end away from the rotating ring, and a pin shaft is provided on the concave side of the arc groove. The distance from the middle of the arc groove to the pin shaft is smaller than the distance from the end of the arc groove to the pin shaft, and the adjustment pin and the arc groove are slidably matched.

7. A quenching oil filtering device as claimed in claim 2, It is characterized in that A supporting groove is provided on the top of the feed cylinder, and the lower part of the movable column cooperates with the supporting groove.

8. A quenching oil filtering device as claimed in claim 2, It is characterized in that The end cover is provided with at least two radial holes, the slide seat is slidably matched with the radial holes, the top of the slide seat is provided with an anti-fall block, the anti-fall block is slidably connected to the top surface of the end cover, and the top surface of the end cover is provided with a closing cover, which is used to cover the anti-fall block and the radial holes.

9. A quenching oil filtering device as claimed in claim 1, It is characterized in that The middle part of the bottom surface of the casing is higher than the periphery of the bottom surface of the casing, and the discharge port is arranged at the bottom of the side wall of the casing.

10. A quenching oil filtering device as claimed in claim 1, It is characterized in that The driving mechanism includes a driving motor, a driving wheel, a driven wheel, and a transmission belt. A motor seat is provided at the bottom of the casing, a driving motor is provided on the motor seat, a driving wheel is provided at the output end of the driving motor, a driven wheel is provided at the bottom of the feed barrel, and the driving wheel is connected to the driven wheel through a transmission belt.

Images