Novel self-lubricating vacuum pump device

Abstract

The utility model provides an automatic lubrication novel vacuum pump device which comprises a base, a driving motor, a screw shell and a gear shell, the driving motor, the screw shell and the gear shell are all fixedly installed on the top of the base, and a lubrication mechanism is arranged on the top of the gear shell and used for instilling lubricating oil to a first gear and a second gear. A transmission mechanism is arranged in the gear shell, the transmission mechanism is connected with the first gear and the lubricating mechanism and used for driving the lubricating mechanism to operate, and an oil receiving mechanism is arranged at the bottom of the gear shell and used for collecting lubricating oil dripping from the lubricating mechanism. Lubricating oil does not need to be manually instilled, the lubricating oil can be intermittently and automatically added, the whole power system is provided by the transmission shaft and the driving screw, equipment does not need to be additionally arranged independently, and the practicability is extremely high.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, in particular to a new type of automatic lubrication vacuum pump device. Background Art

[0002] A vacuum pump refers to a device or equipment that uses mechanical, physical, chemical or physicochemical methods to evacuate the container to obtain a vacuum. A screw vacuum pump is a common type of vacuum pump. The inner wall of the screw vacuum pump has two screws that fit together and rotate in opposite directions under the action of a pair of meshing gears, thereby driving the flow of air. It is widely used in the pharmaceutical, chemical, semiconductor and other fields.

[0003] In actual work, the existing screw vacuum pump technology is complete and can fully meet the basic use requirements, but there are still the following two problems:

[0004] 1. When the two gears driving the screw rotate, the friction will increase, the outer surface consumption of the gear will increase, and the service life of the gear will be shortened, which will affect the normal rotation of the two screws. The large friction will easily cause the gears to fall off, thus affecting the overall use effect.

[0005] 2. The manual dripping method of lubricating oil requires multiple manual additions per unit time, which is time-consuming and labor-intensive. If an intelligent automatic dripping process is adopted, the manufacturing cost of the vacuum pump will increase, and the maintenance cost of the later intelligent machinery will also increase. Utility Model Content

[0006] In order to solve the problems existing in the prior art, the utility model provides a new type of automatic lubrication vacuum pump device, comprising a base (1), a drive motor (3), a screw housing (2) and a gear housing (10), characterized in that the drive motor (3), the screw housing (2) and the gear housing (10) are all fixedly installed on the top of the base (1), the output end of the drive motor (3) is fixedly connected to a transmission shaft (4), the interior of the screw housing (2) is provided with a driving screw (5) and a driven screw (6) that mesh with each other, the end of the driving screw (5) close to the drive motor (3) is fixedly connected to the transmission shaft (4), and the ends of the driving screw (5) and the driven screw (6) away from the drive motor (3) penetrate the screw housing (2) and the gear housing (10) and are in the gear housing (10). A first gear (11) and a second gear (12) are fixedly connected inside the gear housing (10), respectively. The first gear (11) and the second gear (12) are meshed and connected to drive the active screw (5) and the driven screw (6) to rotate in opposite directions. An air inlet pipe (13) is arranged at the top of the screw housing (2), and an air outlet pipe (14) is arranged at the bottom. A lubricating mechanism (7) is arranged at the top of the gear housing (10) for dripping lubricating oil into the first gear (11) and the second gear (12). A transmission mechanism (8) is arranged inside the gear housing (10). The transmission mechanism (8) connects the first gear (11) and the lubricating mechanism (7) and is used to drive the lubricating mechanism (7) to operate. An oil receiving mechanism (9) is arranged at the bottom of the gear housing (10) for collecting lubricating oil dripping from the lubricating mechanism (7).

[0007] Optionally, the lubricating mechanism (7) comprises a lubricating oil tank (71), the lubricating oil tank (71) is mounted on the top of the gear housing (10), the bottom of the lubricating oil tank (71) is connected to an oil outlet pipe (72), the top of the inner wall of the gear housing (10) is fixedly connected to an arc plate (73), the bottom of the arc plate (73) is provided with an arc groove (74), the top of the arc groove (74) is provided with an oil leakage hole (75), the oil outlet pipe (72) passes through the top of the gear housing (10) and is connected to the oil leakage hole (75), and the oil outlet pipe (72) is provided with An oil control valve, wherein a ball (76) is abutted against the inside of the oil leakage hole (75), and the ball (76) can slide in the arc groove (74). The bottom of the ball (76) is fixedly connected to a sliding cylinder (77), and the bottom of the sliding cylinder (77) is slidably plugged with a sliding rod (78), and the bottom end of the sliding rod (78) is fixedly connected to a connecting block (79). The outer surface of the sliding rod (78) is sleeved with an elastic spring (710) whose two ends are respectively fixed to the sliding cylinder (77) and the connecting block (79), and the connecting block (79) is fixedly connected to the transmission mechanism (8).

[0008] Further, the transmission mechanism (8) comprises a sector gear (81), the sector gear (81) is fixedly mounted on the outward side of the first gear (11), a rectangular box (82) is fixedly connected to the top of the inner wall of the gear housing (10), a sliding block (83) is slidably connected in the rectangular box (82), a rack plate (85) is fixedly connected at the bottom end of the sliding block (83), a return spring (84) is arranged inside the rectangular box (82), two ends of the return spring (84) are respectively fixedly connected to the sliding block (83) and the rectangular box (82), a connecting rod (86) is fixedly connected to one side of the outer surface of the rack plate (85), and the other end of the connecting rod (86) is fixedly connected to one side of the connecting block (79).

[0009] Optionally, the oil receiving mechanism (9) comprises a rectangular oil hole (91) and an oil receiving box (94), wherein the rectangular oil hole (91) is provided at the bottom of the gear housing (10), the outer bottom end of the gear housing (10) is connected to an oil outlet frame (92) which is in communication with the rectangular oil hole (91), the bottom of the oil outlet frame (92) is fixedly connected to a rectangular ring frame 1 (93), the top of the oil receiving box (94) is fixedly connected to a rectangular ring frame 2 (95), and the rectangular ring frame 2 (95) can be inserted into the inner wall of the rectangular ring frame 1 (93).

[0010] Furthermore, a locking rod (96) is inserted into one side of the rectangular ring frame (93), and a locking hole (97) adapted to the locking rod (96) is opened on one side of the rectangular ring frame (95).

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] Under the action of the sector gear and the rack plate, the ball can be driven to move along the arc groove, thereby unblocking the oil leakage hole blocked by the ball, and the lubricating oil in the lubricating oil tank can flow from the oil outlet pipe to the oil leakage hole, and then flow to the connection between the first gear and the second gear to lubricate the first gear and the second gear. At the same time, the sector gear is driven by the rotation of the transmission shaft of the drive motor and the active screw, and there is no need to add equipment separately, which reduces the overall manufacturing cost and the later maintenance cost of the intelligent equipment and increases the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following describes the implementation of the automatic lubrication new vacuum pump device of the utility model with reference to the accompanying drawings. The accompanying drawings are:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the gear housing of the utility model;

[0016] Figure 3 for Figure 2 Schematic diagram of the enlarged mechanism of part A;

[0017] Figure 4 It is a structural schematic diagram of the oil receiving mechanism of the utility model. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention, they are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0020] In addition, if the descriptions of "first", "second", etc. are involved in the present utility model, they 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 utility model.

[0021] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments:

[0022] See also Figure 1 and 2The utility model provides an automatic lubrication new vacuum pump device, comprising a base 1, a drive motor 3, a screw housing 2 and a gear housing 10, characterized in that the drive motor 3, the screw housing 2 and the gear housing 10 are all fixedly mounted on the top of the base 1, the output end of the drive motor 3 is fixedly connected to the transmission shaft 4, the interior of the screw housing 2 is provided with a driving screw 5 and a driven screw 6 that mesh with each other, the end of the driving screw 5 close to the drive motor 3 is fixedly connected to the transmission shaft 4, the ends of the driving screw 5 and the driven screw 6 away from the drive motor 3 penetrate the screw housing 2 and the gear housing 10 and are respectively fixed inside the gear housing 10. A first gear 11 and a second gear 12 are connected, and the first gear 11 and the second gear 12 are meshed and connected, which can drive the active screw 5 and the driven screw 6 to rotate in opposite directions. An air inlet pipe 13 is provided on the top of the screw housing 2, and an air outlet pipe 14 is provided on the bottom. A lubrication mechanism 7 is provided on the top of the gear housing 10 for dripping lubricating oil into the first gear 11 and the second gear 12. A transmission mechanism 8 is provided inside the gear housing 10, and the transmission mechanism 8 connects the first gear 11 and the lubrication mechanism 7 to drive the lubrication mechanism 7 to operate. An oil receiving mechanism 9 is provided at the bottom of the gear housing 10 for collecting the lubricating oil dripping from the lubrication mechanism 7.

[0023] Optionally, the lubricating mechanism 7 includes a lubricating oil tank 71, which is mounted on the top of the gear housing 10. The bottom of the lubricating oil tank 71 is connected to an oil outlet pipe 72. An arc plate 73 is fixedly connected to the top of the inner wall of the gear housing 10. An arc groove 74 is provided at the bottom of the arc plate 73. An oil leakage hole 75 is provided at the top of the arc groove 74. The oil outlet pipe 72 passes through the top of the gear housing 10 and is connected to the oil leakage hole 75. An oil control valve is provided on the oil outlet pipe 72. A ball 76 abuts against the inside of the oil leakage hole 75. The ball 76 can slide in the arc groove 74. A sliding cylinder 77 is fixedly connected to the bottom of the ball 76. A sliding rod 78 is slidably inserted at the bottom of the sliding cylinder 77. The bottom end of the sliding rod 78 is fixedly connected to a connecting block 79. The outer surface of the sliding rod 78 is sleeved with an elastic spring 710 whose two ends are respectively fixed to the sliding cylinder 77 and the connecting block 79. The connecting block 79 is fixedly connected to the transmission mechanism 8.

[0024] The technical effect of adopting the above optional solution is that the sliding rod 78 and the sliding cylinder 77 can cooperate with the ball 76, and under the action of the elastic spring 710, the ball 76 can fit with the oil leakage hole 75, thereby preventing the lubricating oil from leaking.

[0025] Furthermore, the transmission mechanism 8 includes a sector gear 81, which is fixedly mounted on the outward side of the first gear 11; a rectangular box 82 is fixedly connected to the top of the inner wall of the gear housing 10; a sliding block 83 is slidably connected in the rectangular box 82; a rack plate 85 is fixedly connected to the bottom end of the sliding block 83; a return spring 84 is arranged inside the rectangular box 82; two ends of the return spring 84 are respectively fixedly connected to the sliding block 83 and the rectangular box 82; a connecting rod 86 is fixedly connected to one side of the outer surface of the rack plate 85; and the other end of the connecting rod 86 is fixedly connected to one side of the connecting block 79.

[0026] The technical effect of adopting the above further scheme is: under the action of the rack plate 85 and the sector gear 81, the rack plate 85 can make a reciprocating motion, thereby driving the ball 76 to slide on the inner wall of the arc groove 74, and then intermittently adding lubricating oil, and the entire power system is provided by the transmission shaft 4 and the active screw 5, without the need for additional equipment, which is very convenient.

[0027] Optionally, the oil receiving mechanism 9 includes a rectangular oil hole 91 and an oil receiving box 94, the rectangular oil hole 91 is opened at the bottom of the gear housing 10, the outer bottom end of the gear housing 10 is connected to an oil outlet frame 92 connected to the rectangular oil hole 91, the bottom of the oil outlet frame 92 is fixedly connected to a rectangular ring frame 1 93, the top of the oil receiving box 94 is fixedly connected to a rectangular ring frame 2 95, and the rectangular ring frame 2 95 can be stuck into the inner wall of the rectangular ring frame 1 93.

[0028] The technical effect of adopting the above optional scheme is that the oil collecting box 94 can be fixed to the bottom of the gear housing 10 under the action of the rectangular ring frame 1 93 and the rectangular ring frame 2 95, so that the lubricating oil flowing out of the oil leakage hole 75 can flow into the oil collecting box 94, and the waste lubricating oil after use can be recovered, thereby avoiding excessive waste lubricating oil in the gear housing 10 causing the rotation of the first gear 11 and the second gear 12 to be obstructed.

[0029] Furthermore, a locking rod 96 is inserted into one side of the rectangular ring frame 1 93 , and a locking hole 97 matched with the locking rod 96 is opened on one side of the rectangular ring frame 2 95 .

[0030] The technical effect of adopting the above further scheme is: by setting the locking rod 96 and the locking hole 97, the rectangular ring frame 1 93 and the rectangular ring frame 2 95 can be fixed to avoid the oil receiving box 94 being too heavy, resulting in the separation of the rectangular ring frame 1 93 and the rectangular ring frame 2 95, and then the lubricating oil in the oil receiving box 94 will be spilled when the oil receiving box 94 falls, increasing the cleaning cost.

[0031] When in use, the driving motor 3 is started, and the driving motor 3 drives the active screw 5 to rotate through the transmission shaft 4, and then drives the first gear 11 and the second gear 12 to rotate, so that the second gear 12 can drive the driven screw 6 to rotate, and at this time, air enters from the air inlet pipe 13, and then the active screw 5 and the driven screw 6 rotate in close contact, so that the air can flow out from the air outlet pipe 14;

[0032] At the same time, the first gear 11 drives the sector gear 81 to rotate. When the meshing surface of the sector gear 81 rotates to the rack plate 85, the rack plate 85 is driven to move, and then the sliding block 83 can be driven to slide in the rectangular box 82. The sliding block 83 squeezes the return spring 84 to deform. At this time, the oil control valve of the oil outlet pipe 72 is opened, and the rack plate 85 drives the connecting block 79 to move through the connecting rod 86, thereby driving the ball 76 to move along the arc groove 74. The ball 76 is separated from the oil leakage hole 75, and the ball 76 squeezes the sliding cylinder 77 downward. The sliding rod 78 will slide on the inner wall of the sliding cylinder 77, and the lubricating oil in the lubricating oil tank 71 will drip into the first gear 11. between the first gear 11 and the second gear 12; when the non-meshing surface of the sector gear 81 rotates to the rack plate 85, the rack plate 85 will be reset under the action of the reset spring 84, and the rack plate 85 drives the connecting block 79 to reset through the connecting rod 86, and the ball 76 re-enters the oil leakage hole 75 under the action of the elastic spring 710 and fits the oil leakage hole 75, the oil leakage hole 75 is blocked by the ball 76, and the lubricating oil in the lubricating oil tank 71 stops dripping, and this process is cyclical, so that the rack plate 85 can cyclically reciprocate, and then can drive the ball 76 to slide on the inner wall of the arc groove 74, and then can intermittently add lubricating oil;

[0033] When the lubricating oil needs to be collected, the rectangular ring block 95 is inserted into the rectangular ring frame 93, the locking rod 96 is inserted into the locking hole 97, and the oil collecting box 94 is installed at the bottom of the oil outlet frame 92, so that the dripping lubricating oil can enter the oil collecting box 94, and the oil collecting box 94 can be removed and cleaned regularly.

[0034] The embodiments of the present invention have been described so far in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A novel automatic lubrication vacuum pump device, comprising a base (1), a drive motor (3), a screw housing (2) and a gear housing (10), characterized in that: The driving motor (3), the screw housing (2) and the gear housing (10) are all fixedly mounted on the top of the base (1); the output end of the driving motor (3) is fixedly connected to the transmission shaft (4); the interior of the screw housing (2) is provided with a driving screw (5) and a driven screw (6) that mesh with each other; the end of the driving screw (5) close to the driving motor (3) is fixedly connected to the transmission shaft (4); the ends of the driving screw (5) and the driven screw (6) away from the driving motor (3) penetrate the screw housing (2) and the gear housing (10) and are respectively fixedly connected to a first gear (11) and a second gear (12) inside the gear housing (10); the first gear (11) and the second gear (12) are connected to each other. The two gears (12) are meshed and connected to drive the active screw (5) and the driven screw (6) to rotate in opposite directions. The top of the screw housing (2) is provided with an air inlet pipe (13), and the bottom is provided with an air outlet pipe (14). The top of the gear housing (10) is provided with a lubricating mechanism (7) for dripping lubricating oil into the first gear (11) and the second gear (12). The gear housing (10) is provided with a transmission mechanism (8) inside. The transmission mechanism (8) connects the first gear (11) and the lubricating mechanism (7) and is used to drive the lubricating mechanism (7) to operate. The bottom of the gear housing (10) is provided with an oil receiving mechanism (9) for collecting lubricating oil dripping from the lubricating mechanism (7).

2. The automatic lubrication new vacuum pump device according to claim 1 is characterized in that: The lubricating mechanism (7) comprises a lubricating oil tank (71), the lubricating oil tank (71) is mounted on the top of the gear housing (10), the bottom of the lubricating oil tank (71) is connected to an oil outlet pipe (72), the top of the inner wall of the gear housing (10) is fixedly connected to an arc plate (73), the bottom of the arc plate (73) is provided with an arc groove (74), the top of the arc groove (74) is provided with an oil leakage hole (75), the oil outlet pipe (72) passes through the top of the gear housing (10) and is connected to the oil leakage hole (75), and an oil control valve (75) is provided on the oil outlet pipe (72). The oil leakage hole (75) is internally abutted with a ball (76), the ball (76) can slide in the arc groove (74), the bottom of the ball (76) is fixedly connected with a sliding cylinder (77), the bottom of the sliding cylinder (77) is slidably plugged with a sliding rod (78), the bottom end of the sliding rod (78) is fixedly connected with a connecting block (79), the outer surface of the sliding rod (78) is sleeved with an elastic spring (710) whose two ends are respectively fixed to the sliding cylinder (77) and the connecting block (79), and the connecting block (79) is fixedly connected to the transmission mechanism (8).

3. The automatic lubrication new vacuum pump device according to claim 2 is characterized in that: The transmission mechanism (8) comprises a sector gear (81), wherein the sector gear (81) is fixedly mounted on the outward side of the first gear (11); a rectangular box (82) is fixedly connected to the top of the inner wall of the gear housing (10); a sliding block (83) is slidably connected in the rectangular box (82); a rack plate (85) is fixedly connected to the bottom end of the sliding block (83); a return spring (84) is arranged inside the rectangular box (82); two ends of the return spring (84) are respectively fixedly connected to the sliding block (83) and the rectangular box (82); a connecting rod (86) is fixedly connected to one side of the outer surface of the rack plate (85); and the other end of the connecting rod (86) is fixedly connected to one side of the connecting block (79).

4. The automatic lubrication new vacuum pump device according to claim 1 is characterized in that: The oil receiving mechanism (9) comprises a rectangular oil hole (91) and an oil receiving box (94); the rectangular oil hole (91) is opened at the bottom of the gear housing (10); the outer bottom end of the gear housing (10) is connected to an oil outlet frame (92) which is in communication with the rectangular oil hole (91); the bottom of the oil outlet frame (92) is fixedly connected to a rectangular ring frame 1 (93); the top of the oil receiving box (94) is fixedly connected to a rectangular ring frame 2 (95); the rectangular ring frame 2 (95) can be inserted into the inner wall of the rectangular ring frame 1 (93).

5. The automatic lubrication new vacuum pump device according to claim 4 is characterized in that: A locking rod (96) is inserted into one side of the rectangular ring frame (93), and a locking hole (97) adapted to the locking rod (96) is opened on one side of the rectangular ring frame (95).

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