Two-for-one twisting spindle supporting device with seal

Abstract

The utility model relates to the technical field of textile machinery, in particular to a two-for-one twisting spindle supporting device with a seal. Each spindle of a key component in the two-for-one twister is fixed on a rack, the spindle rotating at a high speed needs lubricating oil, and an existing supporting component is large in lubricating oil loss, poor in vibration absorption capacity and short in maintenance period. A two-for-one twisting spindle supporting device with a seal is characterized in that a flexible pipe is arranged below a spindle blade, and a bottom support arranged at the tail end of the spindle blade is arranged on the inner side of the flexible pipe; a bearing assembly mounted by a bearing mounting seat is arranged above the spindle blade, and a sealing cover is arranged on the bearing assembly; a supporting shell sleeves the outer side of the bearing mounting seat; a shell fixing seat is arranged on the supporting shell; the outer side below the flexible pipe is sleeved with a vibration absorption ring, and a flexible pipe supporting sleeve is arranged between the vibration absorption ring and the bearing mounting seat; and the supporting shell is provided with a cavity below the bottom support. The structure is reasonable, the bearing with the sealing cover is arranged, supporting is effectively carried out, and loss of lubricating oil is reduced. And the vibration absorption ring effectively absorbs vibration, the comprehensive performance is good, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of textile machinery, and more specifically to a sealed two-for-one twisting spindle supporting device. Background Art

[0002] The two-for-one twister is a twisting device with high speed, which can achieve two twists in one turn. The twisting efficiency is doubled compared with traditional twisting equipment. It also has large winding capacity, 10,000 meters without joints, greatly improved twisting quality, and low layer height, which is particularly suitable for operation.

[0003] As a key component in the two-for-one twister, each spindle is fixed on the frame of the whole machine, and has high requirements for supporting components. The high-speed running spindles require lubricating oil, while the existing supporting components have large lubricating oil loss, poor vibration absorption ability, and short maintenance cycle. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and provide a sealed two-for-one twisting spindle supporting device with reasonable structure and good comprehensive performance.

[0005] A sealed two-for-one twisting spindle support device comprises a spindle rod, wherein a flexible tube is sleeved below the spindle rod, a groove is provided on the flexible tube, a bottom support sleeved on the rear end of the spindle rod is provided on the inner side of the flexible tube; a bearing assembly mounted through a bearing mounting seat is sleeved above the spindle rod, a sealing cover is provided on the bearing assembly; a support shell is sleeved outside the bearing mounting seat, a shell fixing seat for fixing is provided on the support shell; a vibration absorbing ring is sleeved outside the flexible tube, a flexible tube support sleeve is provided between the vibration absorbing ring and the bearing mounting seat; a cavity is provided on the support shell below the bottom support. The utility model has a reasonable structure, is provided with a bearing with a sealing cover, provides effective support, and can effectively reduce the loss of lubricating oil. The vibration absorbing ring is provided to effectively absorb vibration, and the cavity can be used for storing lubricating oil, which has good comprehensive performance, prolongs the service life, and reduces the cost.

[0006] As a further improvement and supplement to the above solution, the utility model also includes the following additional technical features:

[0007] The bearing assembly also includes an outer ring, a ball and a cage, and the cage is flush with one end face of the outer ring; the sealing cover includes a first sealing ring and a second sealing ring of a lip structure, and the first sealing ring and the second sealing ring are connected to form an oil storage cavity. The structure is reasonable, double sealing, and the sealing performance is good. The cage is flush with one end face of the outer ring, and the support force for the spindle rod is strong.

[0008] The vibration absorbing ring is composed of a plurality of spirally-connected cylinders and has a strong vibration absorbing force.

[0009] The clearance between the bottom support and the spindle rod ensures the effective operation of the spindle rod. The clearance between the sealing cover and the spindle rod prevents the lubricating oil from overflowing.

[0010] The bearing assembly and the bearing mounting seat are fixed by riveting, and the connection is firm and reliable.

[0011] The housing fixing seat is a nut, which has low cost, stable and reliable connection, and convenient and quick assembly, disassembly and maintenance.

[0012] The following beneficial effects can be achieved by using the utility model: the utility model has a reasonable structure, is provided with a bearing with a sealing cover, effectively supports, and can effectively reduce the loss of lubricating oil. The vibration absorbing ring is provided to effectively absorb vibration, and the cavity is provided to store lubricating oil, with good comprehensive performance, extended service life, and reduced cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is the front view of the utility model.

[0015] Figure 3 It is a top view of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the bearing assembly 2 in the utility model.

[0017] Figure 5 It is a structural schematic diagram of the vibration absorbing ring 7 in the utility model.

[0018] Figure 6 It is a schematic diagram of the structure of the flexible tube 8 in the utility model. DETAILED DESCRIPTION

[0019] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings.

[0020] like Figure 1-6 As shown, the utility model is a sealed two-for-one twisting spindle supporting device.

[0021] The sealed two-for-one twisting spindle support device described in this embodiment includes a spindle rod 1, a flexible tube 8 is sleeved below the spindle rod 1, the flexible tube 8 is a hollow pipe structure, a through groove 81 is provided on the flexible tube 8, and the groove 81 is spirally arranged along the circumference upward, which is used for the oil path through which the lubricating oil passes. A bottom support 9 sleeved on the rear end of the spindle rod 1 is provided on the inner side of the flexible tube 8, and a through groove penetrating below is provided on the bottom support 9. A bearing assembly 2 installed through a bearing mounting seat 3 is sleeved above the spindle rod 1, and the flexible tube 8 is fitted with the bearing assembly 2, and a sealing cover 21 is provided on the bearing assembly 2 to seal the interior below the spindle rod 1. The outer side of the bearing mounting seat 3 is provided with a support shell 4, the outer side surface of one end of the support shell 4 is in contact with the bearing mounting seat 3, and a shell fixing seat 6 for fixing is provided on the support shell 4; a vibration absorbing ring 7 is provided on the outer side below the flexible tube 8, and a flexible tube support sleeve 5 is provided between the vibration absorbing ring 7 and the bearing mounting seat 3, one side of the flexible tube support sleeve 5 is in contact with the bearing mounting seat 3, and the other side is in contact with the vibration absorbing ring 7, so as to effectively position and support. The support shell 4 is provided with a cavity 10 below the bottom support 9 for storing lubricating oil.

[0022] Furthermore, the bearing assembly 2 further comprises an outer ring 22, a ball 23 and a retainer 24. The retainer 24 and one side end surface of the outer ring 22 are flush, effectively supporting the retainer 24 and preventing the retainer 24 from moving downward, that is, the retainer 24 fits the end surface of the flexible tube 8, and can effectively support the spindle rod 1. The sealing cover 21 comprises a first sealing ring 211 and a second sealing ring 212 of a lip-shaped structure, and a double sealing structure is provided. The first sealing ring 211 and the second sealing ring 212 are connected to form an oil storage chamber 213.

[0023] Furthermore, the vibration absorbing ring 7 is composed of a plurality of spiral cylinders bonded together, and each spiral cylinder absorbs vibration, so the vibration absorbing effect is good.

[0024] Furthermore, the bottom support 9 and the spindle rod 1 are clearance matched, and the inner cavity slope of the bottom support 9 is slightly larger than the slope of the spindle rod 1, so as to ensure the rotation of the spindle rod 1. The sealing cover 21 and the spindle rod 1 are clearance matched, and the clearance is generally 0.05mm~0.2mm, which can prevent the lubricating oil from overflowing.

[0025] Furthermore, the bearing assembly 2 and the bearing mounting seat 3 are fixed by riveting.

[0026] Furthermore, the housing fixing seat 6 is a nut.

[0027] When the sealed two-for-one twisting spindle supporting device is used, the entire device can be fixed in a corresponding position by the housing fixing seat 6 .

[0028] The above are preferred implementations of the present invention, which do not limit the protection scope of the present invention. Any modifications and improvements made by those skilled in the art based on the design ideas of the present invention should be regarded as within the protection scope of the present invention.

Claims

1. A sealed two-for-one twisting spindle support device, comprising a spindle rod (1), characterized in that: A flexible tube (8) is sleeved below the spindle rod (1), a groove (81) is provided on the flexible tube (8), and a bottom support (9) sleeved on the tail end of the spindle rod (1) is provided on the inner side of the flexible tube (8); a bearing assembly (2) mounted through a bearing mounting seat (3) is sleeved above the spindle rod (1), and a sealing cover (21) is provided on the bearing assembly (2); a support shell (4) is sleeved on the outer side of the bearing mounting seat (3), and a shell fixing seat (6) for fixing is provided on the support shell (4); a vibration absorbing ring (7) is sleeved on the outer side of the flexible tube (8), and a flexible tube support sleeve (5) is provided between the vibration absorbing ring (7) and the bearing mounting seat (3); and a cavity (10) is provided on the support shell (4) below the bottom support (9).

2. The sealed two-for-one twisting spindle support device according to claim 1, characterized in that: The bearing assembly (2) further comprises an outer ring (22), balls (23) and a retainer (24), wherein the retainer (24) and the outer ring (22) have end surfaces on one side flush; the sealing cover (21) comprises a first sealing ring (211) and a second sealing ring (212) of a lip-shaped structure, wherein the first sealing ring (211) and the second sealing ring (212) are connected to form an oil storage chamber (213).

3. The sealed two-for-one twisting spindle support device according to claim 1, characterized in that: The vibration absorbing ring (7) is composed of a plurality of spirally-connected cylinders.

4. The sealed two-for-one twisting spindle support device according to claim 1, characterized in that: The bottom support (9) and the spindle rod (1) are clearance-matched, and the sealing cover (21) and the spindle rod (1) are clearance-matched.

5. The sealed two-for-one twisting spindle support device according to claim 1, characterized in that: The bearing assembly (2) and the bearing mounting seat (3) are fixed by riveting.

6. The sealed two-for-one twisting spindle support device according to claim 1, characterized in that: The housing fixing seat (6) is a nut.

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