Waterproof sealing type speed reducer

Abstract

The utility model relates to the technical field of kitchen pretreatment, in particular to a waterproof sealing type speed reducer which comprises a speed reducer body, a rack and a main shaft and further comprises a sealing kit arranged between the speed reducer body and a cover plate at the tail end of a spiral conveyor. The sealing kit comprises a packing sealing seat, a packing gland, a packing, a sealing gasket, a rear sealing seat and a lip-shaped framework sealing gasket, the packing sealing seat and the rear sealing seat are installed at the two ends between the speed reducer and a tail end cover plate of the spiral conveyor respectively, and the main shaft is arranged in the packing sealing seat and the rear sealing seat in a penetrating mode. The packing is arranged between the packing sealing seat and the main shaft, the packing gland is installed on the packing sealing seat and used for pressing the packing, and the lip-shaped framework sealing gasket is arranged between the rear sealing seat and the main shaft. And kitchen sewage can be effectively prevented from entering the speed reducer.

Description

Technical Field

[0001] This utility model relates to the field of kitchen waste pretreatment technology, specifically a waterproof and sealed speed reducer. Background Technology

[0002] The screw conveyor is made of 304 stainless steel. The screw and the connecting flange are fixed by bolts. The drive-end geared motor is fixed to the shaft in the middle of the connecting flange by a slot and installed at the end cover plate of the screw conveyor. The geared motor and the end cover plate of the screw conveyor adopt the M1 connection method. There is no special sealing measure between the shaft in the middle of the connecting flange and the geared motor. It is a rigid connection. The dynamic and static clearance of the rotating parts is only sealed by the skeleton oil seal at the connecting flange of the geared motor. The reliability is low. Due to the structure and installation method of the geared motor of the drive end of the screw conveyor in the kitchen waste pretreatment system, the rigid connection without transition device will inevitably lead to seal wear and the risk of material leakage and water seepage from the geared motor. Especially for the screw conveyor with the geared motor at the lowest point, due to gravity, water will accumulate at the end cover plate of the screw for a long time, which will pose a great threat to the seal of the geared motor and seriously affect the service life of the equipment. Utility Model Content

[0003] The purpose of this invention is to provide a waterproof and sealed speed reducer to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and sealed speed reducer, comprising a speed reducer, a frame, and a main shaft, and further comprising a sealing kit disposed between the speed reducer and the tail end cover plate of the screw conveyor. The sealing kit includes a packing seal seat, a packing gland, packing, a sealing gasket, a rear seal seat, and a lip-shaped skeleton sealing gasket. The packing seal seat and the rear seal seat are respectively installed at both ends between the speed reducer and the tail end cover plate of the screw conveyor. The main shaft passes through the packing seal seat and the rear seal seat. The packing is disposed between the packing seal seat and the main shaft. The packing gland is installed on the packing seal seat and used to press the packing. The lip-shaped skeleton sealing gasket is disposed between the rear seal seat and the main shaft. The sealing gasket is disposed between the packing seal seat and the rear seal seat, and between the rear seal seat and the tail end cover plate of the screw conveyor.

[0005] Preferably, the sealing assembly also includes a double-row tapered roller bearing, which is fitted onto the main shaft and located between the packing seal and the rear seal.

[0006] Preferably, the main shaft and the output shaft of the reducer are connected by a flexible coupling or a universal joint.

[0007] Preferably, the packing seal seat and the rear seal seat are made of stainless steel.

[0008] Preferably, a drain valve is provided at the bottom of the sealing kit.

[0009] Compared with the prior art, the beneficial effects of this utility model are: the multi-layer sealing provides good waterproof performance, effectively preventing kitchen wastewater from entering the reducer; the double-shaft tapered roller bearing provides a secure seal for the entire transmission shaft and...

[0010] The sealing kit provides excellent support, ensuring the relative position and direction of movement between the various moving and stationary components.

[0011] To ensure the smooth operation of mechanical equipment, the double-shaft tapered roller bearing effectively transmits loads and drives the transmission.

[0012] The torque generated by the shaft. The rotation of the drive shaft is achieved through friction and support forces generated within the bearings.

[0013] Kinetic energy can be effectively transferred to other connected parts. This is in contrast to the traditional drive shaft that is directly connected to the reducer.

[0014] The drive disc is connected to the mounting structure, and the use of bearings in the sealing kit reduces rolling and...

[0015] The relative motion between sliding surfaces effectively reduces noise and vibration in mechanical equipment: the positive bearing...

[0016] Regular operation makes mechanical equipment work more smoothly and quietly, extending the service life of the equipment: bearings

[0017] Transmission can reduce mechanical friction, reduce energy loss, achieve energy saving, and improve the transmission efficiency of mechanical equipment.

[0018] Improved efficiency and reduced operating costs; a drain valve is added to the bottom of the sealing kit so that liquid can be discharged in a timely manner.

[0019] Even if the packing seal wears and leaks, the wastewater will be discharged from the valve due to gravity and will not be able to enter.

[0020] The water enters the reducer, thus isolating it from wastewater and preventing water from entering the reducer, thereby improving the safety and stability of the equipment operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] In the diagram: 1. Reducer; 2. Frame; 3. Packing seal seat; 4. Packing gland; 5. Main shaft; 6. Packing; 7. Sealing gasket; 8. Single row tapered roller bearing; 9. Rear seal seat; 10. Lip-shaped skeleton gasket; 11. Flat key. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-1 The present invention provides the following technical solution:

[0025] A waterproof and sealed speed reducer includes a speed reducer 1, a frame 2, a main shaft 5, and a sealing kit disposed between the speed reducer 1 and the tail end cover plate of a screw conveyor. The sealing kit includes a packing seal seat 3, a packing gland 4, a packing 6, a sealing gasket 7, a rear seal seat 9, and a lip-shaped skeleton sealing gasket 10. The packing seal seat 3 and the rear seal seat 9 are respectively installed at both ends between the speed reducer 1 and the tail end cover plate of the screw conveyor. The main shaft 5 passes through the packing seal seat 3 and the rear seal seat 9. The packing 6 is disposed between the packing seal seat 3 and the main shaft 5. The packing gland 4 is installed on the packing seal seat 3 and is used to press the packing 6. The lip-shaped skeleton sealing gasket 10 is disposed between the rear seal seat 9 and the main shaft 5. The sealing gasket 7 is disposed between the packing seal seat 3 and the rear seal seat 9, and between the rear seal seat 9 and the tail end cover plate of the screw conveyor.

[0026] The sealing kit also includes a double-row tapered roller bearing 8, which is mounted on the main shaft 5 and located between the packing seal 3 and the rear seal 9. The main shaft 5 and the output shaft of the reducer 1 are connected by a flexible coupling or a universal joint to ensure that the reducer 1 does not leak oil due to the shaking of the main shaft 5. The packing seal 3 and the rear seal 9 are made of stainless steel, and a drain valve is provided at the bottom of the sealing kit.

[0027] Before formal operation, check whether the lubricating oil in the reducer 1 is sufficient and of good quality. If insufficient or deteriorated, replenish or replace the lubricating oil promptly. Manually rotate the main shaft 5 to check whether the rotation is flexible and free from jamming. At the same time, check whether the connections of each component are loose and whether there are any abnormalities in the sealing parts. Start the equipment driven by the reducer 1 and perform a no-load test run first. Observe the operating status of the reducer 1, including whether there is any abnormal noise or vibration, and whether there is any liquid leakage in the sealing parts. After running the equipment under no-load for a period of time and confirming that there are no abnormalities, gradually load it to the normal working load. During operation, closely monitor the operating parameters of reducer 1, such as oil temperature, speed, and noise. Under normal operation, the oil temperature of reducer 1 should not exceed the specified maximum temperature, which is generally 80℃-90℃ (refer to the reducer instruction manual for details). The noise should be stable and within the normal range. If the oil temperature is found to be too high, the noise is abnormally increased, or other abnormalities are found, the machine should be stopped immediately for inspection. Regularly check the sealing performance of the sealing kit, observe whether there are any signs of liquid leakage at the sealing parts, and at the same time check whether the drain valve is working properly and whether the drain pipe is unobstructed to ensure that the liquid entering the sealing kit can be discharged in time.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof sealed speed reducer characterized by: The assembly includes a speed reducer (1), a frame (2), and a main shaft (5), and also includes a sealing kit disposed between the speed reducer (1) and the tail end cover plate of the screw conveyor. The sealing kit includes a packing seal seat (3), a packing gland (4), a packing (6), a sealing gasket (7), a rear sealing seat (9), and a lip-shaped skeleton sealing gasket (10). The packing seal seat (3) and the rear sealing seat (9) are respectively installed at both ends between the speed reducer (1) and the tail end cover plate of the screw conveyor. The main shaft (5) passes through the frame. The packing (6) is disposed between the packing seal (3) and the main shaft (5) in the packing seal (3) and the rear seal (9). The packing gland (4) is installed on the packing seal (3) and used to press the packing (6). The lip-shaped skeleton gasket (10) is disposed between the rear seal (9) and the main shaft (5). The gasket (7) is disposed between the packing seal (3) and the rear seal (9) and between the rear seal (9) and the tail end cover plate of the screw conveyor.

2. A water-tight sealed speed reducer according to claim 1, characterized in that: The sealing kit is also equipped with a double-row tapered roller bearing (8), which is sleeved on the main shaft (5) and located between the packing seal (3) and the rear seal (9).

3. A water-tight sealed speed reducer according to claim 1, characterized in that: The main shaft (5) and the output shaft of the reducer (1) are connected by a flexible coupling or a universal joint.

4. The waterproof and sealed reducer according to claim 1, characterized in that: The packing seal (3) and the rear seal (9) are made of stainless steel.

5. A water-tight sealed speed reducer according to claim 1, characterized in that: A drain valve is provided at the bottom of the sealing kit.

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