Mechanical sealing device of wire drawing machine

Abstract

The utility model discloses a mechanical sealing device of a wire drawing machine. The mechanical sealing device comprises a gear box, a cone pulley shaft is horizontally arranged in the gear box; the two ends of the cone pulley shaft are arranged on the gear box through bearings respectively. One end of the cone pulley shaft extending out of the gear box is sleeved with a wire drawing sleeve; the cone pulley shaft is sleeved with a water retaining ring; a water retaining sleeve is arranged outside the water retaining ring in a sleeving manner; a first water retaining groove is formed in the outer circumferential surface, close to the end part of the water retaining ring, of the wire drawing sleeve; the first water retaining groove is formed in a cavity in the water retaining sleeve, and a fifth through hole is vertically formed in the water retaining sleeve; the fifth through hole is communicated with the water tank; a water storage tank is further arranged between the water retaining ring and the water retaining sleeve and used for containing cooling water overflowing from the first water retaining tank. A sixth through hole is vertically formed in the water retaining sleeve; the upper part of the sixth through hole is communicated with the water storage tank, and the lower part is communicated with the water tank; cooling water and lubricating engine oil can be fully isolated through a mechanical structure, and maintenance is basically not needed.

Description

Technical Field

[0001] The utility model belongs to the technical field related to the improvement of wire drawing machines, and specifically relates to a mechanical sealing device for a wire drawing machine which can fully isolate cooling water and lubricating oil through a mechanical structure, has a long working life, requires little maintenance, and has good working stability. Background Art

[0002] The existing wire drawing machine includes a gear box; a pulley shaft is horizontally arranged in the gear box; both ends of the pulley shaft are respectively arranged on the gear box through bearings; a wire drawing sleeve is sleeved on one end of the pulley shaft extending out of the gear box; a gear set is arranged on the pulley shaft; the gear set is arranged inside the gear box; lubricating oil is installed in the gear box; the lubricating oil lubricates the gear set; the wire drawing sleeve is used for wire drawing operation, and cooling water is used to cool the wire and the wire drawing die during the wire drawing operation; to prevent cooling water from entering the interior of the gear box, a sealing ring is usually arranged on the pulley shaft. Since the sealing ring is generally made of rubber or nylon, it is easy to be damaged after a long time of use. If you are not careful, cooling water will enter the interior of the gear box, affecting the lubricating effect of the lubricating oil. In serious cases, the sealing ring and the lubricating oil must be replaced, resulting in high maintenance costs and great maintenance difficulty.

[0003] To this end, we have developed a mechanical sealing device for wire drawing machines that can fully isolate cooling water and lubricating oil through a mechanical structure, has a long service life, requires little maintenance, and has good working stability. Summary of the invention

[0004] The utility model aims to provide a mechanical sealing device for a wire drawing machine which can fully isolate cooling water and lubricating oil through a mechanical structure, has a long service life, requires little maintenance and has good working stability.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mechanical sealing device for a wire drawing machine, comprising a gear box; a step pulley shaft is horizontally arranged in the gear box; both ends of the step pulley shaft are respectively arranged on the gear box through bearings; a wire drawing sleeve is sleeved on one end of the step pulley shaft extending out of the gear box; a gear set is arranged on the step pulley shaft; the gear set is arranged inside the gear box; the wire drawing sleeve is used for wire drawing operation; a water retaining ring is sleeved on the step pulley shaft; a water retaining sleeve is sleeved on the outer side of the water retaining ring; One end of the wire drawing sleeve is arranged in contact with the water retaining ring; a first water retaining groove is arranged on the outer circumferential surface of the end of the wire drawing sleeve close to the water retaining ring; the first water retaining groove is arranged in the cavity inside the water retaining sleeve, and a fifth through hole is vertically arranged on the water retaining sleeve; the fifth through hole is connected with the water tank; a water storage tank is also arranged between the water retaining ring and the water retaining sleeve to receive cooling water overflowing from the first water retaining groove; a sixth through hole is vertically arranged on the water retaining sleeve; the upper part of the sixth through hole is connected with the water storage tank, and the lower part is connected with the water tank.

[0006] Preferably, the water retaining ring and the water retaining sleeve are also provided with short water storage grooves and long water storage grooves respectively; the corresponding short water storage grooves and long water storage grooves form a water storage groove.

[0007] Preferably, the water tank is arranged on the water retaining sleeve.

[0008] Preferably, a spring sheet is provided between the water retaining ring and the water retaining sleeve.

[0009] Preferably, the spring sheet is arranged in a groove on the outer circumferential surface of the water retaining ring.

[0010] Preferably, an oil retaining ring is also sleeved on the step pulley shaft; the oil retaining ring is arranged close to the bearing; the water retaining ring and the water retaining sleeve are also respectively provided with a short oil storage groove and a long oil storage groove; the corresponding short oil storage groove and the long oil storage groove form an oil storage groove for receiving lubricating oil overflowing from the oil retaining ring; a second through hole is obliquely arranged in the shell of the gear box; a first through hole is vertically arranged on the water retaining sleeve; the space between the oil retaining ring and the bearing is connected with the second through hole through the first through hole, so that the lubricating oil entering the space between the oil retaining ring and the bearing through the bearing can flow back to the interior of the gear box through the first through hole and the second through hole in turn; a third through hole is vertically arranged on the water retaining sleeve; an oil cup is connected to the outside of the third through hole; the oil storage groove is connected with the third through hole, so that the lubricating oil overflowing from the oil retaining ring is received by the oil storage groove and then enters the oil cup through the third through hole.

[0011] Preferably, a slope is provided on the side of the oil deflector ring close to the bearing; the slope is located at the outermost part of the oil deflector ring, and the lower end of the slope is away from the bearing.

[0012] Preferably, the upper side of the oil cup is connected to a fourth through hole provided in the housing of the gear box; when the lubricating oil contained in the oil cup becomes excessive, the lubricating oil will flow back to the interior of the gear box from the fourth through hole.

[0013] Preferably, the water storage tank is located outside the oil storage tank, originally away from the gear box.

[0014] Preferably, an O-ring seal is provided between the water retaining ring and the step pulley shaft; the O-ring seal can block the oil and water along the step pulley shaft so that they cannot communicate with each other.

[0015] Compared with the prior art, the utility model provides a mechanical sealing device for a wire drawing machine, which has the following beneficial effects:

[0016] The mechanical sealing device of the wire drawing machine of the utility model can fully isolate cooling water and lubricating oil through the mechanical structure, has a long working life, is basically maintenance-free, and has good working stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a front view of a mechanical sealing device for a wire drawing machine proposed by the utility model;

[0019] Figure 2 for Figure 1 Middle HH section enlarged view;

[0020] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0021] In the figure: 1. gear box; 2. step pulley shaft; 3. bearing; 4. drawing sleeve; 5. gear set; 6. water retaining sleeve; 7. water retaining ring; 8. oil retaining ring; 9. first through hole; 10. second through hole; 11. long oil storage groove; 12. third through hole; 13. oil cup; 14. fourth through hole; 15. spring sheet; 16. first water retaining groove; 17. fifth through hole; 18. long water storage groove; 19. sixth through hole; 20. water tank. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 The utility model provides a technical solution: a mechanical sealing device of a wire drawing machine, comprising a gear box 1; a step pulley shaft 2 is horizontally arranged in the gear box 1; both ends of the step pulley shaft 2 are respectively arranged on the gear box 1 through bearings 3; a drawing sleeve 4 is sleeved on one end of the step pulley shaft 2 extending out of the gear box 1; a gear set 5 is arranged on the step pulley shaft 2; the gear set 5 is arranged inside the gear box 1; lubricating oil is installed in the gear box 1; the lubricating oil lubricates the gear set 5; the drawing sleeve 4 is used for wire drawing operation, and cooling water is used to cool the wire and the wire drawing die during the wire drawing operation; in order to prevent cooling water from entering the interior of the gear box 1, a water retaining ring 7 and an oil retaining ring 8 are also sleeved on the step pulley shaft 2 in sequence; the oil retaining ring 8 is arranged close to the bearing 3; the outer sleeve of the water retaining ring 7 is provided with a water retaining sleeve 6; the A spring sheet 15 is arranged between the water retaining ring 7 and the water retaining sleeve 6; in the present embodiment, the spring sheet 15 is arranged in a groove (not marked) on the outer circumferential surface of the water retaining ring 7; the water retaining ring 7 and the water retaining sleeve 6 are also respectively provided with a short oil storage groove (not marked) and a long oil storage groove 11; the corresponding short oil storage groove (not marked) and the long oil storage groove 11 form an oil storage groove (not marked) for receiving the lubricating oil overflowing from the oil retaining ring 8; a second through hole 10 is obliquely arranged in the housing of the gear box 1; a first through hole 9 is vertically arranged on the water retaining sleeve 6; the space between the oil retaining ring 8 and the bearing 3 is connected with the second through hole 10 through the first through hole 9, so that the lubricating oil entering the space between the oil retaining ring 8 and the bearing 3 through the bearing 3 can flow back to the interior of the gear box 1 through the first through hole 9 and the second through hole 10 in turn.

[0024] The spring sheet 15 and the water retaining sleeve 6 are relatively tightly matched due to the tensioning force of the spring sheet 15; when the machine is running, since the water retaining sleeve 6 is fixed on the wall of the gear case, the spring sheet 15 and the water retaining sleeve 6 are tightly matched under the action of the spring tensioning force, so that no friction is generated between the spring sheet 15 and the water retaining ring 7 fixed on the step pulley shaft 2, thereby ensuring the long-term effectiveness of the spring sheet 15.

[0025] A slope (not shown) is provided on the side of the oil deflector ring 8 close to the bearing 3 ; the slope is located at the outermost part of the oil deflector ring 8 , and the lower end of the slope is away from the bearing 3 .

[0026] A third through hole 12 is vertically provided on the water retaining sleeve 6; an oil cup 13 is connected to the outside of the third through hole 12; the oil storage tank is communicated with the third through hole 12, so that the lubricating oil overflowing from the oil retaining ring 8 is collected by the oil storage tank and then enters the oil cup 13 through the third through hole 12; the upper side of the oil cup 13 is communicated with a fourth through hole 14 provided in the shell of the gear box 1; when the lubricating oil collected in the oil cup 13 becomes excessive, it will flow back to the interior of the gear box 1 from the fourth through hole 14.

[0027] In this embodiment, only one oil storage tank is provided. It has been verified through experiments that 99.9% of the lubricating oil overflowing from the bearing 3 will be collected by the oil storage tank and the oil retaining ring 8. If one wants to increase the recovery percentage of the lubricating oil overflowing from the bearing 3, one or more similar oil storage tanks may be provided in sequence outside the oil storage tank.

[0028] One end of the wire drawing sleeve 4 is arranged in contact with the water retaining ring 7; a first water retaining groove 16 is arranged on the outer circumferential surface of the end of the wire drawing sleeve 4 close to the water retaining ring 7; the first water retaining groove 16 is arranged in the cavity inside the water retaining sleeve 6, and a fifth through hole 17 is vertically arranged on the water retaining sleeve 6; the fifth through hole 17 is connected with the water tank 20; in this embodiment, the water tank 20 is arranged on the water retaining sleeve 6; the water retaining ring 7 and the water retaining sleeve 6 are also respectively provided with short water storage grooves (not marked) and long water storage grooves 18; the corresponding short water storage grooves (not marked) and long water storage grooves 18 form a water storage groove (not marked) for receiving cooling water overflowing from the first water retaining groove 16; a sixth through hole 19 is vertically arranged on the water retaining sleeve 6; the upper part of the sixth through hole 19 is connected with the water storage groove, and the lower part is connected with the water tank 20.

[0029] In this embodiment, only one water storage tank is provided. After testing and verification, 99.9% of the cooling water overflowing from the first water retaining tank 16 will be collected by the water storage tank. If you want to increase the recovery percentage of the cooling water overflowing from the first water retaining tank 16, you can set one or more similar water storage tanks in sequence outside the water storage tank.

[0030] In this embodiment, the water storage tank is located outside the oil storage tank, and is originally arranged away from the gear box 1.

[0031] An O-ring seal (not shown) is provided between the water retaining ring 7 and the step pulley shaft 2; the O-ring seal can block the oil and water along the step pulley shaft 2 so that they cannot communicate with each other; the O-ring seal rotates with the water retaining ring 7 and the step pulley shaft 2, so there is no need to worry about its service life and it can operate stably for a long time.

[0032] During operation, a small amount of lubricating oil in the gear box 1 will overflow from the bearing 3, and after being recovered by the oil retaining ring 8 and the oil storage tank in turn, it has been verified by tests that more than 99.9% of the oil can be recovered, and the contact between the lubricating oil and the cooling water can be basically eliminated; at the same time, the cooling water of the cooling wire drawing sleeve 4 is recovered by the first water retaining groove 16 and the water storage tank in turn. After tests, it has been verified that more than 99.9% of the water can be recovered, and the contact between the cooling water and the lubricating oil can be basically eliminated; thereby, a mechanical seal is achieved, which fully isolates the cooling water and the lubricating oil.

[0033] Compared with the prior art, the utility model has the following beneficial effects:

[0034] The mechanical sealing device of the wire drawing machine of the utility model can fully isolate cooling water and lubricating oil through the mechanical structure, has a long working life, is basically maintenance-free, and has good working stability.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanical sealing device for a wire drawing machine, comprising a gear box; a step pulley shaft is horizontally arranged in the gear box; both ends of the step pulley shaft are respectively arranged on the gear box through bearings; a wire drawing sleeve is sleeved on one end of the step pulley shaft extending out of the gear box; a gear set is arranged on the step pulley shaft; the gear set is arranged inside the gear box; the wire drawing sleeve is used for wire drawing operation; the characteristics are: A water retaining ring is sleeved on the tower wheel shaft; a water retaining sleeve is sleeved on the outside of the water retaining ring; one end of the wire drawing sleeve is arranged in contact with the water retaining ring; a first water retaining groove is arranged on the outer circumferential surface of the end of the wire drawing sleeve close to the water retaining ring; the first water retaining groove is arranged in the cavity inside the water retaining sleeve, and a fifth through hole is vertically arranged on the water retaining sleeve; the fifth through hole is connected with the water tank; a water storage tank is also arranged between the water retaining ring and the water retaining sleeve, for receiving cooling water overflowing from the first water retaining groove; a sixth through hole is vertically arranged on the water retaining sleeve; the upper part of the sixth through hole is connected with the water storage tank, and the lower part is connected with the water tank.

2. The mechanical sealing device of a wire drawing machine according to claim 1, characterized in that: The water retaining ring and the water retaining sleeve are also provided with short water storage grooves and long water storage grooves respectively; the corresponding short water storage grooves and long water storage grooves form a water storage groove.

3. The mechanical sealing device of a wire drawing machine according to claim 1, characterized in that: The water tank is arranged on the water retaining sleeve.

4. The mechanical sealing device of a wire drawing machine according to claim 1, characterized in that: A spring sheet is arranged between the water retaining ring and the water retaining sleeve.

5. The mechanical sealing device of a wire drawing machine according to claim 4, characterized in that: The spring sheet is arranged in a groove on the outer circumferential surface of the water retaining ring.

6. The mechanical sealing device of a wire drawing machine according to claim 1, characterized in that: The step pulley shaft is also provided with an oil retaining ring; the oil retaining ring is arranged close to the bearing; the water retaining ring and the water retaining sleeve are respectively provided with a short oil storage groove and a long oil storage groove; the corresponding short oil storage groove and the long oil storage groove form an oil storage groove for receiving the lubricating oil overflowing from the oil retaining ring; a second through hole is obliquely arranged in the shell of the gear box; a first through hole is vertically arranged on the water retaining sleeve; the space between the oil retaining ring and the bearing is connected with the second through hole through the first through hole, so that the lubricating oil entering the space between the oil retaining ring and the bearing through the bearing can flow back to the interior of the gear box through the first through hole and the second through hole in turn; a third through hole is vertically arranged on the water retaining sleeve; an oil cup is connected to the outside of the third through hole; the oil storage groove is connected with the third through hole, so that the lubricating oil overflowing from the oil retaining ring is received by the oil storage groove and then enters the oil cup through the third through hole.

7. A mechanical sealing device for a wire drawing machine according to claim 6, characterized in that: A slope is arranged on the side of the oil retaining ring close to the bearing; the slope is located at the outermost part of the oil retaining ring, and the lower end of the slope is far away from the bearing.

8. The mechanical sealing device of a wire drawing machine according to claim 6, characterized in that: The upper side of the oil cup is communicated with a fourth through hole arranged in the housing of the gear box; when the lubricating oil contained in the oil cup becomes excessive, the lubricating oil will flow back to the interior of the gear box from the fourth through hole.

9. The mechanical sealing device of a wire drawing machine according to claim 6, characterized in that: The water storage tank is located outside the oil storage tank, and is originally arranged away from the position of the gear box.

10. The mechanical sealing device of a wire drawing machine according to claim 6, characterized in that: An O-ring seal is arranged between the water retaining ring and the step pulley shaft; the O-ring seal can block the oil and water along the step pulley shaft so that they cannot communicate with each other.

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