A front bearing oil collecting and lubricating mechanism for a twin-screw pump

Abstract

The present invention discloses a front bearing oil collecting and lubricating mechanism of a twin-screw pump, which relates to the technical field of screw pumps, and comprises a twin-screw pump body, wherein a bearing groove is provided inside the twin-screw pump body, wherein two through holes are provided at the upper end of the twin-screw pump body, wherein both through holes are connected to the bearing groove, wherein two groups of oil discharge mechanisms are provided at the upper end of the twin-screw pump body, wherein a filtering mechanism is provided between the two groups of oil discharge mechanisms, and wherein a refueling mechanism is provided at the upper end of the two groups of oil discharge mechanisms. The present invention refuels the inside of the twin-screw pump body through an oil storage tank and a refueling pipe by using two metal boxes fixedly installed at the upper end of the twin-screw pump body, as well as a cylindrical block and a first spring, a first fixing rod and a cross inside the metal boxes, so that the device can be in a sealed space when refueling, thereby preventing impurities from mixing into the lubricating oil during refueling and flowing into the inside of the twin-screw pump body to cause damage to the bearings and gears inside the twin-screw pump body.

Description

Technical Field

[0001] The invention relates to the technical field of screw pumps, in particular to a front bearing oil collecting and lubricating mechanism of a twin-screw pump. Background Art

[0002] A twin-screw pump is composed of a spiral sleeve and a pump body or a bushing that mesh with each other on the driving and driven shafts to form a sealed chamber with a constant volume. The medium is sent to the middle of the pump body as the screw shaft rotates, and the two are merged together and finally delivered to the pump outlet, thereby achieving the purpose of pump delivery. The lubrication mechanism oil of existing twin-screw pumps is often removed and the oil is added inside. However, if the oiling screw is disassembled too many times, it will be damaged and need to be replaced, which greatly increases the cost. In addition, friction will occur between the gears and bearings inside the existing twin-screw pump, and then metal debris will appear. There is no structure inside the existing twin-screw pump to clean up such metal debris. If it is not cleaned for a long time, the parts inside the twin-screw pump will be damaged. Summary of the invention

[0003] The object of the present invention is to provide an oil collecting and lubricating mechanism for a front bearing of a twin-screw pump to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a front bearing oil collecting and lubricating mechanism of a twin-screw pump, comprising a twin-screw pump body, a bearing groove is provided inside the twin-screw pump body, two through holes are provided at the upper end of the twin-screw pump body, the two through holes provided at the twin-screw pump body are both connected with the bearing groove, two groups of oil discharge mechanisms are provided at the upper end of the twin-screw pump body, a filtering mechanism is provided between the two groups of oil discharge mechanisms, a refueling mechanism is provided at the upper ends of the two groups of oil discharge mechanisms, the oil discharge mechanism comprises a metal box, the metal box is fixedly mounted at the upper end of the twin-screw pump body, a circular hole is provided at the upper end of the metal box, and the bottom of the inner wall of the circular hole provided by the metal box A lower oil hole is opened, and the lower oil hole opened in the metal box is connected with the through hole opened in the twin-screw pump body. A cylindrical block is slidably installed in the circular hole opened in the metal box, and a sealing ring is provided on the circumferential surface of the upper section of the cylindrical block. A limiting ring is fixedly installed on the circumferential surface of the middle section of the cylindrical block, and the limiting ring is located at the top of the inner wall of the lower oil hole opened in the metal box and fits with it. A first fixing rod is slidably installed on the lower end of the cylindrical block, and a cross is fixedly installed on the lower end of the first fixing rod, and the cross is fixedly installed on the inner wall of the through hole opened in the twin-screw pump body. A first spring is sleeved on the circumferential surface of the first fixing rod, and the first spring is fixedly installed between the cylindrical block and the cross.

[0005] Preferably, the filtering mechanism comprises a filter box, a filter slot is provided inside the filter box, magnet blocks are fixedly mounted on both sides of the inner wall of the filter slot provided in the filter box, and a filter net is movably placed between the upper ends of two magnet blocks.

[0006] Preferably, a second hose is fixedly mounted on the lower end of the filter box, and a first oil pipe is fixedly mounted on the lower end of the second hose.

[0007] Preferably, both side ends of the first oil pipe are inserted and fixedly installed at the adjacent ends of the two metal boxes, and both side ends of the first oil pipe are connected to the interior of the twin-screw pump body through two through holes opened in the twin-screw pump body.

[0008] Preferably, a top cover is movably mounted on the upper end of the filter box, a first hose is fixedly mounted on the upper end of the top cover, and an oil pump is fixedly mounted on the lower end of the first hose.

[0009] Preferably, rectangular plates are fixedly installed at the four corners of the lower end of the oil pump, the lower ends of the four rectangular plates are fixedly installed on the upper end of the twin-screw pump body, and a second oil pipe is fixedly installed on the lower end of the oil pump, and the second oil pipe is inserted and fixedly installed on the upper end of the twin-screw pump body.

[0010] Preferably, two support frames are fixedly installed at the lower end of the filter box, and the two support frames are both concave in shape, and second fixing rods are inserted and slidably installed at the lower ends of the two support frames.

[0011] Preferably, the lower ends of the two second fixing rods are fixedly mounted on the upper end of the twin-screw pump body, and the circumferential surfaces of the two second fixing rods are movably sleeved with second springs.

[0012] Preferably, the two second springs are respectively fixedly installed between the two support frames and the twin-screw pump body, and the upper ends of the two second fixing rods are fixedly installed with limit plates, and the two limit plates are respectively located on the inner walls of the two support frames and fit together.

[0013] Preferably, the refueling mechanism includes an oil storage tank, an oil storage tank is provided inside the oil storage tank, two refueling pipes are fixedly installed at the lower end of the oil storage tank, rectangular holes are penetrated on both sides of the circumferential surface of the two refueling pipes, and adjustable switches are provided between the two refueling pipes and the oil storage tank.

[0014] The present invention has the following beneficial effects:

[0015] First, by fixing two metal boxes on the upper end of the twin-screw pump body, as well as the cylindrical block, the first spring, the first fixing rod and the cross inside the twin-screw pump body, the oil is refueled inside the twin-screw pump body through the oil storage tank and the refueling pipe, so that the device can be in a sealed space when refueling, avoiding impurities from mixing into the lubricating oil and flowing into the twin-screw pump body during refueling to cause damage to the bearings and gears inside the twin-screw pump body.

[0016] Secondly, the elastic force of the first fixing rod allows the cylindrical block to slide in the metal box, so that the device can be quickly operated during refueling, avoiding the need to remove screws for refueling, and greatly improving the work efficiency of the staff.

[0017] Third: by starting the oil pump, the lubricating oil inside the twin-screw pump body is pumped into the filter tank opened in the filter box, and after being filtered by the filter screen and adsorbed by the magnet block, it flows into the twin-screw pump body again, so that the lubricating oil inside the twin-screw pump body can always be in a flowing state, and the metal debris inside can be filtered, which greatly improves the lubricating effect of the lubricating oil.

[0018] Fourthly, both ends of the first oil pipe of the device extend to the bearings inside the twin-screw pump body, so that the filtered lubricating oil can be directly poured onto the bearings, which greatly improves the lubrication degree of the bearings and avoids excessive wear of the bearings.

[0019] Fifth: The lubricating oil of the device can circulate continuously, and the lubricating oil is indirectly cooled through fluidity during use, thus avoiding the lubricating oil temperature being too high and resulting in poor lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the twin-screw pump body of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the filter box of the present invention;

[0024] Figure 4 For the present invention Figure 2 A schematic diagram of the structure at A;

[0025] Figure 5 It is a structural schematic diagram of the oil well pump of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the oil storage tank of the present invention.

[0027] Explanation of the accompanying figures: 11. Twin-screw pump body; 12. Metal box; 13. Cylindrical block; 14. Limiting ring; 15. Through hole; 16. Cross; 17. First fixing rod; 18. First spring; 21. Filter box; 22. Magnet block; 23. Filter screen; 24. Top cover; 25. First hose; 26. Second hose; 27. First oil pipe; 28. Oil pump; 29. ​​Rectangular plate; 31. Second fixing rod; 32. Second spring; 33. Support frame; 34. Limiting plate; 41. Oil storage tank; 42. Fueling pipe; 43. Rectangular hole; 45. Second oil pipe.

[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] 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 only 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] Example: Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6A front bearing oil collecting and lubricating mechanism of a twin-screw pump comprises a twin-screw pump body 11, a bearing groove is provided inside the twin-screw pump body 11, two through holes 15 are provided at the upper end of the twin-screw pump body 11, the two through holes 15 provided at the twin-screw pump body 11 are both connected with the bearing groove, two groups of oil discharge mechanisms are provided at the upper end of the twin-screw pump body 11, a filtering mechanism is provided between the two groups of oil discharge mechanisms, a refueling mechanism is provided at the upper end of the two groups of oil discharge mechanisms, the oil discharge mechanism comprises a metal box 12, the metal box 12 is fixedly mounted at the upper end of the twin-screw pump body 11, a circular hole is provided at the upper end of the metal box 12, an oil discharge hole is provided at the bottom of the inner wall of the circular hole provided by the metal box 12, and the oil discharge hole provided by the metal box 12 is parallel to the twin-screw pump body 11. The through hole 15 is formed in the pump body 11. When lubricating oil needs to be added to the bearing groove of the twin-screw pump body 11, the lubricating oil is first poured into the oil storage tank of the oil storage tank 41, and then the two filling pipes 42 at the lower end of the oil storage tank 41 are pressed down against the cylindrical blocks 13 at the upper ends of the two metal boxes 12. The two cylindrical blocks 13 can move downward in the circular hole and the lower oil hole formed in the metal box 12 through the compressibility of the first fixing rod 17 at the lower end. Since the lower oil hole formed in the metal box 12 is larger than the circular hole formed in the metal box 12, when the rectangular holes 43 formed in the two filling pipes 42 all enter the lower oil hole formed in the metal box 12, the user can control the oil storage tank 41 and the filling pipe 42 to form a pressure relief valve. The switch between the oil pipe 42 allows the lubricating oil in the oil storage tank 41 to flow into the lower oil hole in the metal box 12 through the filling pipe 42, and then flow into the bearing groove inside the twin-screw pump body 11 from the through hole 15 to lubricate the bearings and gears inside. After the lubricating oil in the bearing groove is full, the user controls the switch between the oil storage tank 41 and the filling pipe 42 to close it, and waits for the lubricating oil in the filling pipe 42 to flow out. At this time, the user can pull the filling pipe 42 out of the lower oil hole in the metal box 12, and the cylindrical block 13 returns to its original position under the elastic force of the first spring 18, and the sealing ring installed on the surface of the cylindrical block 13 makes the twin-screw pump body The inside of the body 11 is isolated from the outside to prevent the lubricating oil from deteriorating. A cylindrical block 13 is slidably installed in the circular hole opened in the metal box 12. A sealing ring is arranged on the upper circumferential surface of the cylindrical block 13. A limit ring 14 is fixedly installed on the circumferential surface of the middle section of the cylindrical block 13. The limit ring 14 is located at the top of the inner wall of the lower oil hole opened in the metal box 12 and fits. A first fixed rod 17 is slidably installed at the lower end of the cylindrical block 13. A cross 16 is fixedly installed at the lower end of the first fixed rod 17. The cross 16 is fixedly installed on the inner wall of the through hole 15 opened in the twin-screw pump body 11. A first spring 18 is sleeved on the circumferential surface of the first fixed rod 17. The first spring 18 is fixedly installed between the cylindrical block 13 and the cross 16. The filtering mechanism includes a filter box 21. A filter tank is opened inside the filter box 21. Magnet blocks 22 are fixedly installed on both sides of the inner wall of the filter tank opened in the filter box 21. A filter screen 23 is movably placed between the upper ends of the two magnet blocks 22.A second hose 26 is fixedly mounted at the lower end of the filter box 21, and a first oil pipe 27 is fixedly mounted at the lower end of the second hose 26. Both ends of the first oil pipe 27 are inserted and fixedly mounted at the adjacent ends of the two metal boxes 12, and both ends of the first oil pipe 27 are connected to the inside of the twin-screw pump body 11 through two through holes 15 provided in the twin-screw pump body 11. After there is lubricating oil inside the twin-screw pump body 11, it can start working. When the bearings inside the twin-screw pump body 11 are working, metal debris will appear in the lubricating oil due to the friction between the gears and the friction between the bearings. At this time, the user turns on the oil pump 28 to extract the lubricating oil from the inside of the twin-screw pump body 11 through the second oil pipe 45, and then flows into the first hose 25 through the oil pump 28, and then flows from the first hose 25 through the top cover 24 into the filter tank opened in the filter box 21. After flowing in, it will be filtered by the filter net 23 to filter out the metal debris in the lubricating oil, and the magnetism of the two magnet blocks 22 can absorb the metal debris. When the twin-screw pump body 11 is working, it will vibrate, and the vibration force will be transmitted to the two The two second fixing rods 31 are in active connection with the two support frames 33, and the vibration force will be amplified under the elastic force of the second spring 32, so that the two support frames 33 will drive the filter box 21 to vibrate, so that the metal debris can be dispersed while filtering inside, so as to avoid blockage during filtering. The lubricant filtered in the filter box 21 flows into the twin-screw pump body 11 again through the second hose 26 and the first oil pipe 27, and both ends of the first oil pipe 27 are facing the bearings, and the inflowing lubricating oil will lubricate the bearings. A top cover 24 is movably installed on the upper end of the filter box 21, a first hose 25 is fixedly installed on the upper end of the top cover 24, and an oil pump 28 is fixedly installed on the lower end of the first hose 25. Rectangular plates 29 are fixedly installed at the four corners of the lower end of the oil pump 28, and the lower ends of the four rectangular plates 29 are fixedly installed on the upper end of the twin-screw pump body 11. A second oil pipe 45 is fixedly installed at the lower end of the oil pump 28, and the second oil pipe 45 is inserted and fixedly installed on the upper end of the twin-screw pump body 11. Two support frames 33 are fixedly installed at the lower end of the filter box 21. The two support frames 33 are both concave in shape, and the lower ends of the two support frames 33 are inserted and slidably installed with second fixed rods 31. The lower ends of the two second fixed rods 31 are fixedly installed on the upper end of the twin-screw pump body 11, and the circumferential surfaces of the two second fixed rods 31 are movably sleeved with second springs 32. The two second springs 32 are respectively fixedly installed between the two support frames 33 and the twin-screw pump body 11, and the upper ends of the two second fixed rods 31 are fixedly installed with limit plates 34, and the two limit plates 34 are respectively located on the inner walls of the two support frames 33 and fit.The refueling mechanism includes an oil storage tank 41, an oil storage tank is opened inside the oil storage tank 41, two refueling pipes 42 are fixedly installed at the lower end of the oil storage tank 41, rectangular holes 43 are opened on both sides of the circumferential surface of the two refueling pipes 42, and adjustable switches are provided between the two refueling pipes 42 and the oil storage tank 41. The device refuels the inside through the oil storage tank 41 and the refueling pipes 42 through two metal boxes 12 fixedly installed on the upper end of the twin-screw pump body 11, as well as the cylindrical block 13 and the first spring 18 and the first fixed rod 17 and the cross 16 inside the device, so that the device can be in a sealed space during refueling, thereby preventing impurities from mixing into the lubricating oil during refueling and flowing into the inside of the twin-screw pump body 11 to cause damage to the bearings and gears inside the twin-screw pump body 11. At the same time, the device uses the elastic force of the first fixing rod 17 to make the cylindrical block 13 slide in the metal box 12, so that the device can be quickly carried out when refueling, avoiding the need to disassemble the screws for refueling, greatly improving the work efficiency of the staff. The device starts the oil pump 28 to draw the lubricating oil inside the twin screw pump body 11 into the filter tank opened in the filter box 21, and after being filtered by the filter screen 23 and adsorbed by the magnet block 22, it flows into the twin screw pump body 11 again, so that the lubricating oil inside the twin screw pump body 11 can always be in a flowing state, and the metal debris inside can be filtered, greatly improving the lubricating effect of the lubricating oil. Moreover, the first oil pipe 27 of the device extends to the bearing inside the twin screw pump body 11 at both ends, so that the filtered lubricating oil can be directly poured on the bearing, greatly improving the lubrication degree of the bearing and avoiding excessive wear of the bearing. Moreover, the lubricating oil of the device can circulate all the time, and the lubricating oil is indirectly cooled by fluidity during use, avoiding the lubricating oil temperature being too high and causing poor lubrication effect.

[0033] Instructions for use: When it is necessary to add lubricating oil to the bearing groove of the twin-screw pump body 11, first pour the lubricating oil into the oil storage tank of the oil storage tank 41, and then press the two filling pipes 42 at the lower end of the oil storage tank 41 against the cylindrical blocks 13 at the upper ends of the two metal boxes 12. The two cylindrical blocks 13 can move downward in the circular hole and the lower oil hole of the metal box 12 through the compressibility of the first fixing rod 17 at the lower end. Since the lower oil hole of the metal box 12 is larger than the circular hole of the metal box 12, when the rectangular holes 43 of the two filling pipes 42 all enter the lower oil hole of the metal box 12, the user can control the switch between the oil storage tank 41 and the filling pipe 42 to fill the oil storage tank 41. The lubricating oil in 1 flows into the lower oil hole of the metal box 12 through the filling pipe 42, and then flows into the bearing groove inside the twin-screw pump body 11 from the through hole 15 provided in the twin-screw pump body 11 to lubricate the bearings and gears therein. After the lubricating oil in the bearing groove is full, the user controls the switch between the oil storage tank 41 and the filling pipe 42 to close it, and waits for the lubricating oil in the filling pipe 42 to flow out. At this time, the user can pull the filling pipe 42 out of the lower oil hole in the metal box 12, and the cylindrical block 13 returns to its original position under the elastic force of the first spring 18. The sealing ring installed on the surface of the cylindrical block 13 isolates the inside of the twin-screw pump body 11 from the outside to prevent the lubricating oil from deteriorating. The device is provided with two metal boxes 12 fixedly mounted on the upper end of the twin-screw pump body 11, and the cylindrical block 13, the first spring 18, the first fixing rod 17 and the cross 16 therein, and refuels the inside thereof through the oil storage tank 41 and the refueling pipe 42, so that the device can be in a sealed space during refueling, and impurities are prevented from mixing into the lubricating oil and flowing into the inside of the twin-screw pump body 11 during refueling, causing damage to the bearings and gears therein. At the same time, the device uses the elastic force of the first fixing rod 17 to allow the cylindrical block 13 to slide in the metal box 12, so that the device can be refueled quickly, avoiding the need to disassemble the screws for refueling, and greatly improving the work efficiency of the staff.

[0034] After there is lubricating oil inside the twin-screw pump body 11, it can start working. When the bearings inside the twin-screw pump body 11 are working, due to the friction between the gears and the friction between the bearings, metal debris will appear in the lubricating oil. At this time, the user turns on the oil pump 28 to extract the lubricating oil from the inside of the twin-screw pump body 11 through the second oil pipe 45, and then flows into the first hose 25 through the oil pump 28, and then flows from the first hose 25 through the top cover 24 into the filter tank opened in the filter box 21. After flowing in, it will be filtered by the filter net 23 to filter out the metal debris in the lubricating oil, and the magnetism of the two magnet blocks 22 can absorb the metal debris. When the twin-screw pump body 11 is working, it will vibrate, and the vibration force will be transmitted to the two second fixed rods 31, and the two second fixed rods 31 are movably connected to the two support frames 33, and under the elastic force of the second spring 32, the vibration force will be amplified, and the two support frames 33 will drive the filter box 21 to vibrate, so that the metal debris can be dispersed while filtering inside it to avoid clogging during filtering. The lubricant filtered in the filter box 21 flows into the inside of the twin-screw pump body 11 again through the second hose 26 and the first oil pipe 27, and both ends of the first oil pipe 27 are facing the bearings, and the inflowing lubricating oil will lubricate the bearings. The device starts the oil pump 28 to draw the lubricating oil inside the twin-screw pump body 11 into the filter tank opened in the filter box 21. After being filtered by the filter screen 23 and adsorbed by the magnet block 22, the lubricating oil flows into the twin-screw pump body 11 again, so that the lubricating oil inside the twin-screw pump body 11 can always be in a flowing state, and the metal debris inside can be filtered, which greatly improves the lubricating effect of the lubricating oil. In addition, the first oil pipe 27 of the device extends to the bearings inside the twin-screw pump body 11 at both ends, so that the filtered lubricating oil can be directly poured on the bearings, which greatly improves the lubrication degree of the bearings and avoids excessive wear of the bearings. In addition, the lubricating oil of the device can circulate all the time, and the lubricating oil is indirectly cooled by fluidity during use, which avoids the lubricating oil temperature being too high and causing poor lubrication effect.

[0035] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A front bearing oil collecting and lubricating mechanism of a twin-screw pump, comprising a twin-screw pump body (11), characterized in that: A bearing groove is provided inside the twin-screw pump body (11); two through holes (15) are provided at the upper end of the twin-screw pump body (11); the two through holes (15) provided in the twin-screw pump body (11) are both connected to the bearing groove; two groups of oil discharge mechanisms are provided at the upper end of the twin-screw pump body (11); a filtering mechanism is provided between the two groups of oil discharge mechanisms; and a refueling mechanism is provided at the upper ends of the two groups of oil discharge mechanisms; The oil discharge mechanism comprises a metal box (12), the metal box (12) being fixedly mounted on the upper end of the twin-screw pump body (11), the metal box (12) being provided with a circular hole at the upper end, the inner wall bottom of the circular hole of the metal box (12) being provided with an oil discharge hole, the oil discharge hole of the metal box (12) being connected with a through hole (15) of the twin-screw pump body (11), a cylindrical block (13) being slidably mounted in the circular hole of the metal box (12), a sealing ring being provided on the circumferential surface of the upper section of the cylindrical block (13), and a sealing ring being provided on the circumferential surface of the middle section of the cylindrical block (13). A limit ring (14) is fixedly installed, and the limit ring (14) is located at the top of the inner wall of the lower oil hole opened in the metal box (12) and fits closely thereto; a first fixed rod (17) is slidably installed at the lower end of the cylindrical block (13); a cross (16) is fixedly installed at the lower end of the first fixed rod (17); the cross (16) is fixedly installed on the inner wall of the through hole (15) opened in the twin-screw pump body (11); a first spring (18) is sleeved on the circumferential surface of the first fixed rod (17); and the first spring (18) is fixedly installed between the cylindrical block (13) and the cross (16).

2. The front bearing oil collecting and lubricating mechanism of a twin-screw pump according to claim 1, characterized in that: The filtering mechanism comprises a filtering box (21), a filtering groove is provided inside the filtering box (21), magnet blocks (22) are fixedly mounted on both sides of the inner wall of the filtering groove provided in the filtering box (21), and a filtering net (23) is movably placed between the upper ends of the two magnet blocks (22).

3. The front bearing oil collecting and lubricating mechanism of a twin-screw pump according to claim 2, characterized in that: A second hose (26) is fixedly mounted on the lower end of the filter box (21), and a first oil pipe (27) is fixedly mounted on the lower end of the second hose (26).

4. The front bearing oil collecting and lubricating mechanism of a twin-screw pump according to claim 3, characterized in that: Both side ends of the first oil pipe (27) are inserted and fixedly installed at the adjacent ends of the two metal boxes (12), and both side ends of the first oil pipe (27) are connected to the interior of the twin-screw pump body (11) through two through holes (15) opened in the twin-screw pump body (11).

5. The front bearing oil collecting and lubricating mechanism of a twin-screw pump according to claim 2, characterized in that: A top cover (24) is movably mounted on the upper end of the filter box (21), a first hose (25) is fixedly mounted on the upper end of the top cover (24), and an oil pump (28) is fixedly mounted on the lower end of the first hose (25).

6. The front bearing oil collecting and lubricating mechanism of a twin-screw pump according to claim 5, characterized in that: Rectangular plates (29) are fixedly mounted at the four corners of the lower end of the oil pump (28), and the lower ends of the four rectangular plates (29) are fixedly mounted on the upper end of the twin-screw pump body (11). A second oil pipe (45) is fixedly mounted at the lower end of the oil pump (28), and the second oil pipe (45) is inserted and fixedly mounted on the upper end of the twin-screw pump body (11).

7. The front bearing oil collecting and lubricating mechanism of a twin-screw pump according to claim 5, characterized in that: Two support frames (33) are fixedly mounted on the lower end of the filter box (21); the two support frames (33) are both concave in shape; and second fixing rods (31) are inserted and slidably mounted on the lower ends of the two support frames (33).

8. The front bearing oil collecting and lubricating mechanism of a twin-screw pump according to claim 7, characterized in that: The lower ends of the two second fixing rods (31) are fixedly mounted on the upper end of the twin-screw pump body (11), and the circumferential surfaces of the two second fixing rods (31) are movably sleeved with second springs (32).

9. The front bearing oil collecting and lubricating mechanism of a twin-screw pump according to claim 8, characterized in that: The two second springs (32) are respectively fixedly mounted between the two support frames (33) and the twin-screw pump body (11); the upper ends of the two second fixing rods (31) are both fixedly mounted with limit plates (34); the two limit plates (34) are respectively located on the inner walls of the two support frames (33) and fit closely to each other.

10. The front bearing oil collecting and lubricating mechanism of a twin-screw pump according to claim 1, characterized in that: The refueling mechanism comprises an oil storage box (41), an oil storage tank is provided inside the oil storage box (41), two refueling pipes (42) are fixedly mounted at the lower end of the oil storage box (41), rectangular holes (43) are provided through both sides of the circumferential surface of the two refueling pipes (42), and adjustable switches are provided between the two refueling pipes (42) and the oil storage box (41).

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