Terrace grinding machine gearbox transmission shaft sealing three-oil-seal system

Abstract

The utility model discloses a terrace grinding machine gearbox transmission shaft sealing three-oil-seal system, and relates to the technical field of terrace grinding machines, the terrace grinding machine gearbox transmission shaft sealing three-oil-seal system comprises a gearbox, the interior of the gearbox is rotatably connected with a main gear shaft, the surface of the main gear shaft is in toothed connection with an even transmission gear, the surface of the transmission gear is in toothed connection with a linkage gear and a bearing, and the linkage gear is in toothed connection with the bearing. The other end, opposite to the transmission gear, of the linkage gear is in toothed connection with a rotating gear, a gear long shaft is fixed in the rotating gear, a bearing is connected to the surface of the gear long shaft, and an oil seal is arranged at the other end, opposite to the rotating gear, of the bearing; oil leakage can be effectively reduced by increasing the number of the oil seals and limiting the positions of the oil seals through the oil seal seat, meanwhile, the oil seal seat can prevent external silt from entering, the silt is prevented from entering the space between the oil seals and the gear long shaft to shorten the service life of the oil seals, and normal use of the floor grinding machine is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of floor grinding machines, in particular to a three-oil seal system for sealing a transmission shaft of a gear box of a floor grinding machine. Background Art

[0002] The transmission shaft at the bottom of the floor grinder comes out from the gear box, and there is gear oil inside the gear box. Therefore, two oil seals are currently used to seal the transmission shaft to prevent the gear oil from leaking downwards.

[0003] However, since the drive shaft and the oil seal are always in a high-temperature friction state, the drive shaft will wear out after a long time, or dirt will corrode the oil seal or filaments will break the oil seal and cause oil leakage. Therefore, a three-oil seal system for the drive shaft seal of the floor grinder gear box is proposed to solve the above problems. Utility Model Content

[0004] The utility model provides a three-oil seal system for sealing a transmission shaft of a gear box of a floor grinding machine, which solves the above technical problems.

[0005] In order to solve the above technical problems, the utility model provides a three-oil seal system for sealing the gear box transmission shaft of a floor grinder, including a gear box, the gear box is internally rotatably connected with a main gear shaft, the surface of the main gear shaft is toothed with an even transmission gear, the surface of the transmission gear is toothed with a linkage gear and a power gear, the other end of the linkage gear relative to the transmission gear is toothed with a rotating gear, a gear long shaft is fixed inside the rotating gear, a bearing is connected to the surface of the gear long shaft, an oil seal is provided at the other end of the bearing relative to the rotating gear, the other end of the oil seal relative to the bearing is connected to an oil seal seat, the other end of the oil seal seat relative to the oil seal is provided with a claw disk seat, one end of the gear long shaft is connected to a threaded shaft, the surface of the claw disk seat is connected to a rubber pad by bolts, and a three-star grinding disc is fixed to the surface of the rubber pad.

[0006] Preferably, a spring is arranged on the outer side of the threaded shaft, and two ends of the spring are respectively fixed on the surface of the gear long axis and the three-star grinding disc.

[0007] Preferably, a dust suction port is provided on the surface of the gear box, and the dust suction port is located at two four corners of the upper end of the gear box.

[0008] Preferably, three oil seals are provided and the oil seal seat is sleeved on the surface of one of the oil seals.

[0009] Preferably, the oil seal seat is connected to the gear box by bolts.

[0010] Compared with the related art, the three-oil seal system for the gearbox transmission shaft seal of the floor grinding machine provided by the utility model has the following beneficial effects:

[0011] The utility model can effectively reduce the occurrence of oil leakage by increasing the number of oil seals and limiting the position of the oil seal by the oil seal seat. At the same time, the oil seal seat can block the entry of external mud and sand, thereby preventing mud and sand from entering between the oil seal and the gear shaft to reduce the service life of the oil seal, thereby ensuring the normal use of the floor grinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the main structure diagram of the utility model;

[0013] Figure 2 This is a back structure diagram of the utility model;

[0014] Figure 3 This is the internal structure diagram of the gear box in the utility model;

[0015] Figure 4 It is the transmission structure diagram of the surface of the three-star grinding disc in the utility model;

[0016] Figure 5 It is a transmission side structure diagram of the surface of the three-star grinding disc in the utility model;

[0017] Figure 6 This is a structural diagram of the oil seal and the oil seal seat on the surface of the gear long shaft in the utility model;

[0018] Figure 7 It is the structural diagram of the oil seal in the utility model.

[0019] Numbers in the figure: 1. Gear box; 2. Main gear shaft; 3. Dust suction port; 4. Three-star grinding wheel; 5. Linkage gear; 6. Transmission gear; 7. Rotating gear; 8. Gear long shaft; 9. Oil seal; 10. Oil seal seat; 11. Claw plate seat; 12. Rubber pad; 13. Spring; 14. Bearing; 15. Threaded shaft; 16. Linkage gear. DETAILED DESCRIPTION

[0020] Example, by Figure 1-7 The utility model comprises a three-oil seal system for sealing the gearbox transmission shaft of a floor grinder, comprising a gearbox 1, wherein the gearbox 1 is internally rotatably connected with a main gear shaft 2, the surface of the main gear shaft 2 is toothed with an even transmission gear 6, the surface of the transmission gear 6 is toothed with a linkage gear 5 and a power gear 16, the other end of the linkage gear 5 relative to the transmission gear 6 is toothed with a rotating gear 7, a gear long shaft 8 is fixed inside the rotating gear 7, a bearing 14 is connected to the surface of the gear long shaft 8, an oil seal 9 is arranged at the other end of the bearing 14 relative to the rotating gear 7, an oil seal seat 10 is connected to the other end of the oil seal 9 relative to the bearing 14, a claw disc seat 11 is arranged at the other end of the oil seal seat 10 relative to the oil seal 9, one end of the gear long shaft 8 is connected with a threaded shaft 15, the surface of the claw disc seat 11 is connected with a rubber pad 12 by bolts, and a three-star grinding disc 4 is fixed to the surface of the rubber pad 12.

[0021] A spring 13 is arranged on the outer side of the threaded shaft 15 , and two ends of the spring 13 are respectively fixed on the surface of the gear long shaft 8 and the three-star grinding disc 4 .

[0022] The surface of the gear box 1 is provided with dust suction ports 3 , which are located at two four corners of the upper end of the gear box 1 .

[0023] Three oil seals 9 are provided and the oil seal seat 10 is sleeved on the surface of one of the oil seals 9 .

[0024] The oil seal seat 10 is connected to the gear box 1 by bolts.

[0025] The motor is connected to the main gear shaft 2, the motor drives the main gear shaft 2 to rotate, the main gear shaft 2 drives the transmission gear 6 to rotate, the transmission gear 6 rotates and drives the linkage gear and bearing 14 to rotate, the linkage gear 5 rotates and drives the rotating gear 7 to rotate, the rotating gear 7 rotates and drives the gear long shaft 8 to rotate, thereby driving the three-star grinding wheel 4 to rotate, the three-star grinding wheel 4 reduces the reaction force on people through the spring 13 and the rubber pad 12 to ensure the smooth grinding of the ground, the three oil seals 9 and the oil seal 9 bearing seat can block the gap between the gear long shaft 8 and the gear box 1 to reduce subsequent oil leakage.

Claims

1. A three-oil seal system for a gearbox transmission shaft seal of a floor grinding machine, comprising a gearbox (1), characterized in that: The gear box (1) is internally rotatably connected to a main gear shaft (2); the surface of the main gear shaft (2) is toothed with an even transmission gear (6); the surface of the transmission gear (6) is toothed with a linkage gear (5) and a power gear (16); the other end of the linkage gear (5) opposite to the transmission gear (6) is toothed with a rotating gear (7); a gear long shaft (8) is fixed inside the rotating gear (7); the surface of the gear long shaft (8) is connected with a bearing (14); an oil seal (9) is provided at the other end of the bearing (14) opposite to the rotating gear (7); the other end of the oil seal (9) opposite to the bearing (14) is connected with an oil seal seat (10); the other end of the oil seal seat (10) opposite to the oil seal (9) is provided with a claw plate seat (11); one end of the gear long shaft (8) is connected with a threaded shaft (15); the surface of the claw plate seat (11) is connected with a rubber pad (12) via bolts; the surface of the rubber pad (12) is fixed with a three-star grinding disc (4).

2. The three-oil seal system for the gearbox transmission shaft of the floor grinding machine according to claim 1 is characterized in that: A spring (13) is arranged on the outer side of the threaded shaft (15), and two ends of the spring (13) are respectively fixed on the surface of the gear long shaft (8) and the three-star grinding disc (4).

3. The three-oil seal system for the transmission shaft of the floor grinding machine gear box according to claim 2 is characterized in that: A dust suction port (3) is provided on the surface of the gear box (1), and the dust suction port (3) is located at two four corners of the upper end of the gear box (1).

4. The three-oil seal system for the transmission shaft of the floor grinding machine gear box according to claim 1 is characterized in that: Three oil seals (9) are provided, and the oil seal seat (10) is sleeved on the surface of one of the oil seals (9).

5. The three-oil seal system for the transmission shaft of the gear box of the floor grinding machine according to claim 1 is characterized in that: The oil seal seat (10) is connected to the gear box (1) via bolts.

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