Rotating shaft lip-shaped sealing ring disengaging device

Abstract

The utility model discloses a rotating shaft lip-shaped sealing ring disengaging device and belongs to the technical field of sealing ring production. The outer side of the supporting shaft is sleeved with a plurality of disengaging rods, the outer sides of the disengaging rods are sleeved with an upper fixing ring, a lower fixing ring and a supporting ring, the upper end of the supporting shaft is provided with a limiting plate, the limiting plate is attached to the upper end face of each disengaging rod, the upper end of the outer wall of the supporting shaft is provided with a positioning protrusion, and the positioning protrusion is attached to the inner wall of each disengaging rod. A gap is reserved between the rod body of the supporting shaft and the inner wall of each disengaging rod. Supporting ring fixing grooves are formed in the inner sides of the upper ends of the auxiliary plates, and positioning grooves are formed in the outer sides of the upper ends of the auxiliary plates. When an oil seal test is finished, the oil seal shell does not need to be detached, the oil seal can be directly separated, operation is convenient, deformation and damage of the oil seal are prevented, the integrity of the oil seal can be protected, then accurate judgment conditions are provided for fault analysis of the oil seal and determination of real reasons of oil leakage of the oil seal, production efficiency is improved, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to a rotary shaft lip-shaped sealing ring disengaging device, belonging to the technical field of sealing ring production. Background Art

[0002] The rotating shaft lip seal is called oil seal for short. It is usually installed at the end of the rotating shaft of mechanical equipment to isolate the output components from the components that need lubrication, so as to prevent the leakage of lubricating oil and the entry of foreign matter into the sealing area.

[0003] During operation, when the oil seal leaks oil, the prior art is to knock it out manually, which causes the product to be severely deformed and has certain defects. Utility Model Content

[0004] In order to solve the problems existing in the background technology, the utility model provides a rotating shaft lip seal ring release device.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a rotating shaft lip seal ring ejection device, comprising a support shaft, an ejection rod, an upper fixing ring and a lower fixing ring; a plurality of ejection rods are sleeved on the outer side of the support shaft, the upper ends of the outer sides of the plurality of ejection rods are sleeved on the upper fixing ring, and the lower ends of the outer sides of the plurality of ejection rods are sleeved on the lower fixing ring.

[0006] The lower ends of the outer sides of the multiple ejection rods are also provided with a support ring, which is located at the lower end of the lower fixed ring. A gap is left between the upper end surface of the support ring and the auxiliary lip of the rotating shaft lip seal ring, and the outer diameter of the support ring is interference fit with the lip of the rotating shaft lip seal ring.

[0007] A limit plate is provided at the upper end of the support shaft, and the lower surface of the limit plate is in contact with the upper end surface of each ejection rod. A positioning protrusion is provided at the upper end of the outer wall of the support shaft, and the positioning protrusion is in contact with the inner wall of each ejection rod. A gap is left between the rod body of the support shaft and the inner wall of each ejection rod.

[0008] The outer edge of the lower end surface of the support shaft is provided with a front end rounded corner.

[0009] An auxiliary plate is vertically fixed to the lower end of each ejection rod, a support ring fixing groove is provided on the inner side of the upper end of the auxiliary plate, and a positioning groove is provided on the outer side of the upper end of the auxiliary plate.

[0010] The lower surface of each auxiliary plate is a wedge-shaped surface.

[0011] The lower end of the inner wall of each escape rod is provided with an end face rounded corner.

[0012] The outer wall of the upper fixing ring is provided with a weight-reducing groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides accurate judgment conditions for analyzing the failure of the oil seal and determining the real cause of the oil seal leakage, thereby improving production efficiency and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the support shaft;

[0017] Figure 3 It is a schematic diagram of the structure of the ejection rod. DETAILED DESCRIPTION

[0018] The technical solution 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.

[0019] A rotary shaft lip seal ring ejection device comprises a support shaft 1, an ejection rod 2, an upper fixing ring 3 and a lower fixing ring 4; a plurality of ejection rods 2 are sleeved on the outer side of the support shaft 1, the plurality of ejection rods 2 are evenly distributed along the circumference of the support shaft 1, the upper ends of the outer sides of the plurality of ejection rods 2 are sleeved with the upper fixing ring 3, the lower ends of the outer sides of the plurality of ejection rods 2 are sleeved with the lower fixing ring 4, the fixing ring is used to fix the ejection rods; the lower fixing ring 4 does not contact the high auxiliary lip of the rotary shaft lip seal ring to prevent the oil seal from being crushed.

[0020] The lower ends of the outer sides of the plurality of ejection rods 2 are also provided with support rings 5, which are located at the lower end of the lower fixed ring 4. The support rings 5 ​​support the lip of the rotating shaft lip seal ring 6 to prevent foreign objects from scratching the lip during the product ejection process. The lower end surface of the lower fixed ring 4 is in contact with the support ring 5, which plays a positioning role. A gap is left between the upper end surface of the support ring 5 and the auxiliary lip of the rotating shaft lip seal ring 6 to prevent the oil seal from being crushed; the outer diameter of the support ring 5 is interference fit with the lip of the rotating shaft lip seal ring 6, which plays a protective role.

[0021] A limiting plate 1-1 is integrally provided at the upper end of the support shaft 1, and the lower surface of the limiting plate 1-1 is in contact with the upper end surface of each ejection rod 2, so as to fix the ejection rod 2 axially; a positioning protrusion 1-2 is integrally provided at the upper end of the outer wall of the support shaft 1 along its circumference, and the positioning protrusion 1-2 is in contact with the inner wall of each ejection rod 2, so as to fix the ejection rod 2 radially and axially; a gap is left between the rod body 1-3 of the support shaft 1 and the inner wall of each ejection rod 2, so as to play a guiding role.

[0022] The outer edge of the lower end surface of the support shaft 1 is provided with a front end rounded corner 1-4 to ensure that the support shaft 1 can be smoothly inserted into the center position of the multi-ejection rod 2.

[0023] An auxiliary plate 2-1 is vertically fixed to the lower end of each ejection rod 2, and a support ring fixing groove 2-2 is provided on the inner side of the upper end of the auxiliary plate 2-1 to avoid contact with the lip; a positioning groove 2-3 is provided on the outer side of the upper end of the auxiliary plate 2-1, and the positioning groove 2-3 contacts the lip sealing ring of the rotating shaft to locate the force position.

[0024] The lower surface of each auxiliary plate 2-1 is a wedge-shaped surface 2-4, which ensures that the ejection rod can smoothly extend into the sealing ring.

[0025] The lower end of the inner wall of each of the ejection rods 2 is provided with an end face fillet 2-5 to prevent burrs from scratching the sealing ring.

[0026] The outer wall of the upper fixing ring 3 is provided with a weight-reducing groove 3 - 1 , which can reduce the weight and provide a force-bearing position.

[0027] When using the utility model, first install the support ring 5 on the rotating shaft lip seal 6 to protect the lip portion of the rotating shaft lip seal 6, then pass multiple ejection rods 2 through the upper fixing ring 3 and the lower fixing ring 4 respectively, so that the ejection rods 2 cooperate with the rotating shaft lip seal 6, then pass the support shaft 1 through the center position of all the ejection rods 2, and finally evenly eject the rotating shaft lip seal 6 through the weight reduction groove 3-1 at the stress position of the upper fixing ring 3.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent conditions of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rotating shaft lip seal ring release device, characterized in that: The invention comprises a support shaft (1), an ejection rod (2), an upper fixing ring (3) and a lower fixing ring (4); a plurality of ejection rods (2) are sleeved on the outer side of the support shaft (1); the upper ends of the outer sides of the plurality of ejection rods (2) are sleeved on the upper fixing ring (3); and the lower ends of the outer sides of the plurality of ejection rods (2) are sleeved on the lower fixing ring (4).

2. A rotary shaft lip seal ring removal device according to claim 1, characterized in that: The lower ends of the outer sides of the plurality of ejection rods (2) are also provided with a support ring (5), the support ring (5) being located at the lower end of the lower fixing ring (4), a gap being left between the upper end surface of the support ring (5) and the auxiliary lip of the rotating shaft lip seal ring (6), and the outer diameter of the support ring (5) being interference fit with the lip of the rotating shaft lip seal ring (6).

3. A rotary shaft lip seal ring removal device according to claim 1 or 2, characterized in that: A limiting plate (1-1) is provided at the upper end of the support shaft (1), the lower surface of the limiting plate (1-1) is in contact with the upper end surface of each ejection rod (2), a positioning protrusion (1-2) is provided at the upper end of the outer wall of the support shaft (1), the positioning protrusion (1-2) is in contact with the inner wall of each ejection rod (2), and a gap is left between the rod body (1-3) of the support shaft (1) and the inner wall of each ejection rod (2).

4. A rotary shaft lip seal ring removal device according to claim 3, characterized in that: The outer edge of the lower end surface of the support shaft (1) is provided with a front end rounded corner (1-4).

5. A rotary shaft lip seal ring removal device according to claim 1 or 4, characterized in that: An auxiliary plate (2-1) is vertically fixed to the lower end of each ejection rod (2), a support ring fixing groove (2-2) is provided on the inner side of the upper end of the auxiliary plate (2-1), and a positioning groove (2-3) is provided on the outer side of the upper end of the auxiliary plate (2-1).

6. A rotary shaft lip seal ring removal device according to claim 5, characterized in that: The lower surface of each auxiliary plate (2-1) is a wedge-shaped surface (2-4).

7. A rotary shaft lip seal ring removal device according to claim 4 or 6, characterized in that: The lower end of the inner wall of each ejection rod (2) is provided with an end face rounded corner (2-5).

8. A rotary shaft lip seal ring removal device according to claim 7, characterized in that: The outer wall of the upper fixing ring (3) is provided with a weight-reducing groove (3-1).

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