Gear protection device

Abstract

The utility model relates to a gear protection device which comprises a first reduction gearbox, a second reduction gearbox, a reduction gearbox mounting frame, a lubricating oil groove mounting frame, a lubricating oil groove, a second gear, a second bearing, a first gear, a first bearing and a dry-method granulator. A lubricating oil groove is formed below two gears rotating in the reverse direction, a proper amount of lubricating grease is placed in the lubricating oil groove, and the parts, extending into the lubricating oil groove, of the two gears are soaked in the lubricating grease, so that the lubricating grease is continuously supplemented in the meshing transmission process of the gears rotating in the reverse direction; when being extruded, the gear drips and flows back into the lubricating oil groove, waste is avoided, cleaning is easy, the abrasion degree between the gears is greatly reduced, and the service life of the gears is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of instruments and equipment, in particular to a gear protection device. Background Art

[0002] Dry granulator is mainly used for granulating powder or granular raw materials in the pharmaceutical, food, fertilizer, feed and other industries. In the pharmaceutical industry, dry granulator is widely used in the manufacturing process of tablets, granules, capsules, slow-release coatings, controlled-release tablets, etc. It can improve the bioavailability of active ingredients and prepare medical implants, medical powders, capsules, etc. The dry granulator adopts dry roller pressing technology. The powder material is quantitatively fed from the vibrating feeder through the transverse screw feeder and evenly added to the sheeting main hopper to keep a constant amount of particles in the sheeting main hopper. Then the longitudinal conical spiral in the sheeting main material pre-compresses the powder and conveys it to the arc-shaped notches of the two rollers. The surfaces of the two rollers are evenly distributed with semi-oblate arc grooves or diamond-shaped grooves of the same shape. Through the meshing transmission of a pair of gears, the two rollers rotate at the same speed and in opposite directions, and the material conveyed to the notch by the conical spiral is bitten into the groove and instantly compressed. After compression, the material falls off from the groove under the action of its elastic force and gravity as the pressure gradually decreases, and enters the crushing and granulating system. Then it is sieved and graded according to the user's particle size requirements to obtain a uniform granular product that meets the quality requirements. The powder under the sieve is returned to the vibrating hopper for recycling.

[0003] The two pressing rollers of the existing dry granulator are connected to the two gears through bearings respectively. The two pressing rollers are driven to rotate at a constant speed by the two counter-rotating gears. The two gears are meshed for transmission. During the movement, the meshing part of the gears is prone to wear and lubricating oil is required. However, after the lubricating oil is added, the lubricating oil will be squeezed around the gears when the two gears are meshed and drip under the gears, which is difficult to clean. At the same time, the lubricating oil in the meshing part of the gears is reduced. Long-term and continuous use will still aggravate the wear of the meshing part of the gears and reduce the service life of the gears.

[0004] In summary, a gear protection device is needed that can replenish lubricating oil in time when the gears are meshing to increase the service life of the gears. Summary of the invention

[0005] In order to solve the problems of gear wear and low gear service life during the meshing transmission of two counter-rotating gears in a dry granulator, the utility model provides a gear protection device with a simple structure. A lubricating oil tank is installed under the two counter-rotating gears, and a proper amount of lubricating oil ester is placed in the lubricating oil tank. The parts of the two gears extending into the lubricating oil tank are immersed in the lubricating oil ester, so that the counter-rotating gears are continuously replenished with lubricating oil ester during the meshing transmission process, and the lubricating oil ester is squeezed when the two gears are meshed and drips back into the lubricating oil tank, which avoids waste and is easy to clean, greatly reduces the wear between the gears, and improves the service life of the gears.

[0006] In order to achieve the above object, the technical solution of the utility model is as follows:

[0007] A gear protection device, the gear protection device includes a first reduction gear box, a second reduction gear box, a reduction gear box mounting frame, a lubricating oil tank mounting frame, a lubricating oil tank, a second gear, a second bearing, a first gear, a first bearing and a dry granulator, the first reduction gear box is connected to the first gear through the first bearing, the second reduction gear box is connected to the second gear through the second bearing, the first reduction gear box and the second reduction gear box are mounted on the reduction gear box mounting frame, the lubricating oil tank mounting frame is fixedly connected to the reduction gear box mounting frame, the lubricating oil tank is mounted on the lubricating oil tank mounting frame, the first gear and the second gear are suspended directly above the lubricating oil tank, the first gear and the second gear extend into the lubricating oil tank, and the first bearing and the second bearing are connected to the dry granulator.

[0008] Furthermore, a pneumatic vibrator is installed below the lubricating oil tank.

[0009] The features of this utility model are mainly reflected in:

[0010] The utility model provides a gear protection device, which has a simple structure. A lubricating oil tank is installed under two counter-rotating gears, and a proper amount of lubricating oil ester is put into the lubricating oil tank. Parts of the two gears extending into the lubricating oil tank are immersed in the lubricating oil ester, so that the counter-rotating gears can continuously replenish the lubricating oil ester during the meshing transmission process. When the two gears are meshed, the lubricating oil ester is squeezed and drips back into the lubricating oil tank, so there is no waste, it is easy to clean, the wear degree between the gears is greatly reduced, and the service life of the gears is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the gear protection device of the utility model

[0012] Figure 2 This is a side view of the gear protection device of the utility model

[0013] Among them, the figure numbers are as follows: 1-first reduction gearbox, 2-second reduction gearbox, 3-reduction gearbox mounting frame, 4-lubricating oil tank mounting frame, 5-lubricating oil tank, 6-second gear, 7-second bearing, 8-first gear, 9-first bearing, 10-dry granulator, 11-pneumatic vibrator. DETAILED DESCRIPTION

[0014] The following will be combined with the accompanying drawings of the structural schematic diagram 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 of 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.

[0015] like Figure 1 As shown, a gear protection device comprises a first reduction box 1, a second reduction box 2, a reduction box mounting frame 3, a lubricating oil tank mounting frame 4, a lubricating oil tank 5, a second gear 6, a second bearing 7, a first gear 8, a first bearing 9 and a dry granulator 10. The lubricating oil tank 5 can be filled with lubricating oil ester. The first gear 8 and the second gear 6 are respectively connected to two pressing rollers (not shown in the figure) in the dry granulator 10, driving the two pressing rollers to rotate at the same speed and in opposite directions, biting the material into the tank and instantly forcing it to compress. The first reduction box 1 is connected to the first gear 8 through the first bearing 9, and the second reduction box 2 is connected to the second gear through the second bearing 7. 6, the first reduction box 1 and the second reduction box 2 are mounted on the reduction box mounting frame 3, the lubricating oil tank mounting frame 4 is fixedly connected to the reduction box mounting frame 3, the lubricating oil tank 5 is mounted on the lubricating oil tank mounting frame 4, the first gear 8 and the second gear 6 are suspended directly above the lubricating oil tank 5, the first gear 8 and the second gear 6 extend into the lubricating oil tank 5, so that the first gear 8 and the second gear 6 mesh and rotate in the lubricating oil tank 5, the first gear 8 and the second gear 6 are always immersed in the lubricating oil ester in the lubricating oil tank 5 when meshing and rotating, so as to reduce the degree of gear wear, the first bearing 9 and the second bearing 7 are connected to the dry granulator 10.

[0016] A pneumatic vibrator 11 is installed below the lubricating oil groove. When the pneumatic vibrator 11 vibrates, the lubricating grease can be spread flat in the lubricating oil groove 5 to prevent the lubricating grease from sinking into the meshing portion of the first gear 8 and the second gear 6 when the first gear 8 and the second gear 6 are meshing, resulting in the lubricating grease being unable to soak the meshing portion of the first gear 8 and the second gear 6.

[0017] To sum up, the gear protection device has a simple structure. A lubricating oil tank is installed under the two counter-rotating gears, and an appropriate amount of lubricating oil ester is placed in the lubricating oil tank. The parts of the two gears extending into the lubricating oil tank are immersed in the lubricating oil ester, so that the counter-rotating gears can continuously replenish the lubricating oil ester during the meshing transmission process. When the two gears are meshed, the lubricating oil ester is squeezed and drips back into the lubricating oil tank, which avoids waste and is easy to clean. The wear between the gears is greatly reduced, and the service life of the gears is increased.

[0018] It should be noted that the above is only a preferred embodiment of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments. Without departing from the spirit or basic features of the utility model, the utility model can be implemented in other specific forms. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model.

Claims

1. A gear protection device, characterized in that: The gear protection device comprises a first reduction gearbox (1), a second reduction gearbox (2), a reduction gearbox mounting frame (3), a lubricating oil tank mounting frame (4), a lubricating oil tank (5), a second gear (6), a second bearing (7), a first gear (8), a first bearing (9) and a dry granulator (10); the first reduction gearbox (1) is connected to the first gearbox (8) via the first bearing (9); the second reduction gearbox (2) is connected to the second gearbox (6) via the second bearing (7); the first reduction gearbox (1) and the second reduction gearbox (2) are mounted on the reduction gearbox mounting frame (3); the lubricating oil tank mounting frame (4) is fixedly connected to the reduction gearbox mounting frame (3); the lubricating oil tank (5) is mounted on the lubricating oil tank mounting frame (4); the first gear (8) and the second gear (6) are suspended directly above the lubricating oil tank (5); the first gear (8) and the second gear (6) extend into the lubricating oil tank (5); and the first bearing (9) and the second bearing (7) are connected to the dry granulator (10).

2. The gear protection device according to claim 1, characterized in that: A pneumatic vibrator (11) is installed below the lubricating oil tank.

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