Oil pumping prevention assembly and method for oil injection and press fitting of wheel

Abstract

The invention relates to a wheel oil injection and press fitting oil pumping prevention assembly and a using method, the wheel oil injection and press fitting oil pumping prevention assembly is applied to an oil injection and press fitting wheel process, the wheel oil injection and press fitting oil pumping prevention assembly comprises a tooth side clearance sealing tool, a non-tooth side clearance sealing gasket, a plugging piece and a wheel axial positioning prompt valve, in the process, the tooth side clearance sealing tool is installed between an axle suspension box tooth side end cover and a gear sealing ring, and the non-tooth side clearance sealing gasket is installed on the plugging piece; the non-tooth side clearance sealing gasket is installed between a non-tooth side axle suspension bearing outer ring and an axle suspension box, and the wheel axial positioning prompt valve is movably positioned on the non-tooth side axle suspension bearing outer ring through a threaded hole of the axle suspension box and used for monitoring whether oil injection pressing fitting reaches a preset value or not. The plugging piece is used for plugging a plurality of pre-plugging holes of the axle suspension box in the oil injection pressing process. On the basis of not changing the original design of the wheel set gear axle-hung box, by changing the tool and the process, the quality problems of oil pollution and dilution of the axle-hung bearing caused by the fact that press-fitting hydraulic oil enters a bearing chamber of the axle-hung box in the oil injection and press-fitting process are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of axle box assembly, and in particular to a wheel oiling press-fitting oil-channeling prevention component and method. Background Art

[0002] Compared with hot pressing and cold pressing, oil injection pressing has a high yield rate, good economy, and relatively low requirements for processing and pressing equipment. It is widely used in the domestic locomotive industry. Figure 1 As shown, since the axle boxes of a large part of products are axially positioned by the wheels, the distance between the wheels and the axle boxes is relatively close, the lubricating oil leaked during the oiling and pressing process of the wheels can easily pass through the gap of the dynamic seal of the bearing box and flow into the lubrication chamber of the axle box bearing, causing grease dilution and affecting product quality.

[0003] Taking the cold pressing of wheels as an example, the process flow is as follows: driven gear assembly - assembly of the tooth side end cover, sealing ring and bearing of the axle box - grease injection of the tooth side bearing - assembly of the axle box - assembly of the non-tooth side bearing - grease injection of the non-tooth side bearing - assembly of the non-tooth side end cover and spacer ring of the axle box - measurement of the clearance of the axle box - press fitting of the wheel on the non-tooth side - press fitting of the wheel on the tooth side. Figure 1 In the middle, the right side is the tooth side.

[0004] The existing vehicles running in the section were originally hot-mounted and cold-pressed, and the operation was good. If the oil injection and press-fit process is changed during maintenance, the most ideal solution is: without changing the existing structure of the product, by changing the process steps and improving the process measures, the original hot-mounted and cold-pressed wheelsets can be assembled by oil injection and press-fit. This will improve production efficiency, reduce the difficulty of single-piece processing and assembly of the wheel axle, and reduce the scrap rate.

[0005] However, if the cold wheel pressing process is simply replaced by oil injection pressing, when the non-toothed side wheel is installed, the hydraulic oil for oil injection pressing flowing out of the inner hole of the wheel will flow into the bearing box of the bearing along the gap between the non-toothed side sealing cover and the spacer ring (such as Figure 2 The red path in the figure). After the wheel is filled with oil and pressed, the oil film between the wheel and the axle will be gradually discharged due to the pressure between the wheel and the axle. The lubricating oil flowing out from the outer side of the wheel can be cleaned with a rag, and then the part flowing out from the inner side of the wheel will flow out from the unloading groove of the axle through the gap between the spacer ring and the end face of the wheel again, and flow into the bearing box of the axle box, causing grease contamination and dilution of the bearing, affecting the use of the bearing.

[0006] Therefore, it is urgent to study a process for assembling the original hot-mounted and cold-pressed wheelsets by oil injection and pressing, by changing the process steps and improving the process measures without changing the existing structure of the product. Summary of the invention

[0007] In response to the technical problems raised above, a wheel oil injection and press-fitting oil-sinking prevention component and method are provided.

[0008] The technical means adopted by the present invention are as follows:

[0009] A wheel oil injection and press-fitting anti-oil channeling assembly is used in the oil injection and press-fitting process of wheels, comprising a tooth side clearance sealing tool, a non-tooth side clearance sealing gasket, a sealing piece and a wheel axial positioning prompt valve. During the process, the tooth side clearance sealing tool is installed between the tooth side end cover of the axle box and the gear sealing ring, the non-tooth side clearance sealing gasket is installed between the non-tooth side bearing outer ring and the axle box, the wheel axial positioning prompt valve is movably positioned on the non-tooth side bearing outer ring through the threaded hole of the axle box, and is used to monitor whether the oil injection and press-fitting reaches a preset value. The sealing piece is used to block several pre-sealed holes of the axle box during the oil injection and press-fitting process.

[0010] Furthermore, the wheel axial positioning warning valve includes an externally threaded fixing sleeve, an internally threaded sliding rod, an O-ring, an adjusting nut, an externally threaded sliding rod and a spring. The externally threaded fixing sleeve is fixed in the threaded hole of the axle box through its external thread, and the bottom of the internally threaded sliding rod is pressed into the externally threaded fixing sleeve through the adjusting nut and the spring. O-rings are arranged on the outside of the internally threaded sliding rod and the inside of the externally threaded fixing sleeve. An externally threaded sliding rod is arranged at the bottom end of the internally threaded sliding rod. During the pressing process, the pressing amount of the non-tooth side wheel is determined based on the moving distance of the externally threaded sliding rod.

[0011] Furthermore, the press-fitting amount of the non-tooth side wheel is confirmed by a dial indicator arranged on the outer end surface of the externally threaded sliding rod.

[0012] Furthermore, during the press-fitting process of the non-tooth side wheel, when the dial indicator shows a movement value of 0.2-1.3 mm, the press-fitting of the non-tooth side wheel is stopped.

[0013] Furthermore, the plurality of pre-sealed holes include a monitoring hole for the bearing, a process hole for measuring the axial positioning of the wheel, and an end cover mounting hole.

[0014] Furthermore, the blocking member includes a screw plug and a bolt.

[0015] Furthermore, the non-tooth side gap sealing gaskets are two semicircular sealing gaskets, and the outer dimensions are the same as the contact surfaces of the non-tooth side sealing cover and the axle box. Bolt holes for connecting the non-tooth side sealing cover and the axle box are reserved on the sealing gaskets.

[0016] Furthermore, the tooth side gap sealing tooling includes bolts, half sealing ring tooling, sealing rings and nuts. The two half sealing ring toolings install the sealing rings outside the gap between the tooth side bearing end cover and the gear sealing ring. Both ends of the half sealing ring tooling are provided with holes for installing bolts. After the two half sealing ring toolings are butt-jointed, they are fixed by bolts and nuts.

[0017] The present invention also discloses a method for using the wheel oil injection press-fit oil channeling prevention assembly, which comprises the following steps:

[0018] Before the wheel is pressed, only the gear side bearing is greased, and the non-gear side bearing is not greased for the time being;

[0019] The gap between the gear side bearing box and the driven gear is sealed by the gear side sealing tool and the sealing ring, and the gap at the non-gear side bearing end cover is sealed by the non-gear side gap sealing gasket;

[0020] Use screw plugs, bolts and wheel axial positioning reminder valves to plug the threaded holes and several pre-sealed holes of the axle box;

[0021] Fill the bearing chamber with clean air through the grease injection hole of the non-tooth side bearing, and complete the oil injection and press-fitting of the non-tooth side wheel at the same time;

[0022] The press-fitting process reading is monitored by hitting the dial indicator head on the nut head surface of the wheel axial positioning prompt valve. When the preset value is reached, the wheelset press-fitting is completed.

[0023] Remove the gear side clearance sealing tooling, plugging parts and wheel axial positioning reminder valve;

[0024] Add bearing grease into the bearing chamber from the grease injection hole of the non-tooth side bearing. Rotate the bearing while adding grease to evenly distribute the grease on the bearing, thus completing the tooth side wheel press-fitting and subsequent processes.

[0025] Furthermore, the inflation gas source is compressed air with a pressure of 0.4 to 0.6 MPa.

[0026] Compared with the prior art, the present invention has the following advantages: the present invention can avoid the quality problems of grease contamination and dilution of the bearings caused by the press-fitting hydraulic oil entering the axle box bearing chamber during the oil filling and press-fitting process without changing the original design of the wheelset gear axle box, by changing the tooling and process. On the one hand, the design of the wheelset axle box can be applied to the design of the split wheel shunting locomotive, reducing the manufacturing cost and R&D cost caused by redesign; on the other hand, it can improve production efficiency and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 This is the structural diagram of the wheelset gear axle box.

[0029] Figure 2 This is the assembly structure diagram of the non-toothed side-holding bearing.

[0030] Figure 3 The invention discloses an inflation and sealing scheme for the press-fitting process.

[0031] Figure 4 This is the structural diagram of the wheel axial positioning reminder valve.

[0032] Figure 5 This is the structural diagram of the non-tooth side clearance seal.

[0033] Figure 6 This is the structural diagram of the tooth side clearance sealing tooling.

[0034] Figure 7 It is a process flow chart of the present invention.

[0035] Figure 8 This is an enlarged view of the non-tooth gap seal.

[0036] Fig. 9 This is an enlarged view of the tooth side clearance seal.

[0037] In the figure: 1. Bolt; 2. Semi-sealing ring tooling; 3. Sealing ring; 4. Gear side bearing end cover; 5. Gear sealing ring; 6. Nut; 41. External thread fixing sleeve; 42. Internal thread sliding rod; 43. O-ring; 44. Adjusting nut; 45. External thread sliding rod; 46. Spring. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0041] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0042] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0043] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0044] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0045] like Figure 2 As shown, the non-tooth side wheel, spacer ring and end cover are close to each other. It is difficult to seal the position where the arrow flows. First, the gap is small and the seal cannot be removed after being installed. Second, if this place is blocked and not removed, it will affect the design function of the dynamic seal.

[0046] For this reason, Figure 1 , Figure 3 to Figure 9 As shown, an embodiment of the present invention discloses a wheel oil injection and press-fitting anti-oil channeling assembly, which is applied to the oil injection and press-fitting process of wheels, and includes a tooth side clearance sealing tool, a non-tooth side clearance sealing gasket, a sealing piece and a wheel axial positioning prompt valve. During the process, the tooth side clearance sealing tool is installed between the tooth side end cover of the axle box and the gear sealing ring, the non-tooth side clearance sealing gasket is installed between the non-tooth side bearing outer ring and the axle box, the wheel axial positioning prompt valve is movably positioned on the non-tooth side bearing outer ring through the threaded hole of the axle box, and is used to monitor whether the oil injection and press-fitting reaches a preset value, and the sealing piece is used to block several pre-sealed holes of the axle box during the oil injection and press-fitting process.

[0047] The channels connected to the bearing chamber of the non-tooth side bearing include: the gap between the non-tooth side gap end cover and the spacer ring, the gap between the non-tooth side end cover and the axle box, the bolt holes, grease injection holes, and screw plug holes on the axle box, and the gap between the tooth side end cover and the gear sealing ring. The present invention seals the through holes and gaps connected to the non-tooth side bearing chamber of the axle box by making a wheel axial positioning prompt valve, a non-tooth side gap sealing gasket, a tooth side gap sealing tool, bolts, screw plugs, etc., leaving only the non-tooth side bearing oil filling hole for inflation, and the gap between the non-tooth side spacer ring and the end cover for air outlet. Since the direction of air outlet is opposite to the flow direction of the hydraulic oil of the oil injection press, the hydraulic oil is prevented from flowing into the non-tooth side axle box bearing chamber through this gap.

[0048] Furthermore, the wheel axial positioning warning valve includes an externally threaded fixing sleeve 41, an internally threaded sliding rod 42, an O-ring 43, an adjusting nut 44, an externally threaded sliding rod 45 and a spring 45. The externally threaded fixing sleeve is fixed in the threaded hole of the axle box through its external thread, and the bottom of the internally threaded sliding rod is pressed into the externally threaded fixing sleeve through the adjusting nut and the spring. O-rings are arranged on the outside of the internally threaded sliding rod and the inside of the externally threaded fixing sleeve. An externally threaded sliding rod is arranged at the bottom end of the internally threaded sliding rod. During the pressing process, the pressing amount of the non-tooth side wheel is determined based on the moving distance of the externally threaded sliding rod.

[0049] Furthermore, the press-fitting amount of the non-tooth side wheel is confirmed by a dial indicator arranged on the outer end surface of the externally threaded sliding rod.

[0050] Furthermore, during the press-fitting process of the non-tooth side wheel, when the dial indicator shows a movement value of 0.2-1.3 mm, the press-fitting of the non-tooth side wheel is stopped.

[0051] Specifically, during the non-tooth side wheel press-fitting process, when the inner side of the wheel hub moves with the spacer ring, the non-tooth side bearing inner ring, and the non-tooth side bearing outer ring, the non-tooth side wheel press-fitting is stopped when the dial indicator on the outer end surface of the external threaded sliding rod shows a movement value of 0.2-1.3mm. This wheel axial positioning prompt valve can not only prompt the wheel press-fitting termination position, but also play a sealing role.

[0052] Furthermore, the plurality of pre-sealed holes include a monitoring hole for the bearing, a process hole for measuring the axial positioning of the wheel, and an end cover mounting hole.

[0053] Furthermore, the blocking member includes a screw plug and a bolt.

[0054] Furthermore, the non-tooth side clearance seals are two semicircular seals, and the outer dimensions are the same as the contact surface of the non-tooth side seal cover and the axle box. Bolt holes for connecting the non-tooth side seal cover and the axle box are reserved on the seals, so that they can be clamped with bolts. After the non-tooth side clearance seals are installed, there are redundant parts left outside, so that they can be removed from the axle box after the wheel is pressed.

[0055] Furthermore, the gear side clearance sealing tool comprises a bolt 1, a half sealing ring tool 2, a sealing ring 3 and a nut 6. The two half sealing ring tools install the sealing ring outside the gap between the gear side bearing end cover 4 and the gear sealing ring 5. Both ends of the half sealing ring tool are provided with holes for installing bolts. After the two half sealing ring tools are butt-jointed, they are fixed by bolts and nuts to achieve the sealing of the gap between the gear side bearing box and the driven gear.

[0056] The present invention also discloses a method for using the wheel oil injection press-fit oil channeling prevention assembly, which comprises the following steps:

[0057] Before the wheel is pressed, only the gear side bearing is greased, and the non-gear side bearing is not greased for the time being;

[0058] The gap between the gear side bearing box and the driven gear is sealed by the gear side sealing tool and the sealing ring, and the gap at the non-tooth side bearing end cover is sealed by the non-tooth side gap sealing gasket to prevent air from flowing out of the gap when the non-tooth side bearing box bearing chamber is inflated.

[0059] Use screw plugs, bolts and wheel axial positioning reminder valves to plug the threaded holes of the axle box and several pre-sealed holes to prevent air from flowing out;

[0060] Fill the bearing chamber with clean air through the grease injection hole of the non-tooth side bearing. Figure 2 Except for the gap indicated by the arrow, all other vents and gaps in the axle box have been sealed. At this time, after air is rushed into the non-tooth side bearing chamber, only the gap indicated by the arrow flows out. The direction of the airflow is opposite to the flow direction of the hydraulic oil used for oil filling and pressing. The oil filling and pressing of the non-tooth side wheel is completed while inflating, which will prevent the hydraulic oil from penetrating into the bearing chamber.

[0061] The press-fitting process is monitored by using the dial indicator head on the nut head surface of the wheel axial positioning prompt valve. When the preset value is reached, the wheelset press-fitting is completed. Specifically, when the wheel is pressed against the isolation ring, the non-tooth side bearing moves slightly in the axial direction, which is reflected on the dial indicator through the wheel axial positioning prompt valve. During the press-fitting process, when the dial indicator shows 0.2-1.3mm, the wheelset press-fitting is completed.

[0062] Remove the gear side clearance sealing tooling, plugging parts and wheel axial positioning reminder valve;

[0063] Add bearing grease into the bearing chamber from the grease injection hole of the non-tooth side bearing. Rotate the bearing while adding grease to evenly distribute the grease on the bearing, thus completing the tooth side wheel press-fitting and subsequent processes.

[0064] In summary, the present invention is a method for asynchronous greasing, which first adds grease to the gear side axle box, then performs wheel press-fitting, and finally greases the non-tooth side bearing, so as to increase the pressure in the axle box and the patency of the non-tooth side clearance during the oil injection and press-fitting process.

[0065] Furthermore, the inflation is carried out by compressed air of 0.4-0.6MPa. The present invention realizes a wheel oil injection and press-fitting anti-oil channeling assembly process that can be realized by using only a common air source (0.6Mpa) and a small amount of tooling.

[0066] The present invention seals all ventilation gaps, through holes, and threaded holes in the bearing chamber of the axle box through a sealing structure and scheme, leaving an air charging hole to flush air into the bearing chamber, so that a positive pressure is formed inside the axle box, and the oil of the oil injection and press-fitting medium is prevented from entering the bearing through the gap close to the wheel. A method is provided for changing the process from cold pressing and hot fitting to oil injection and press-fitting without changing the structure of the axial positioning of the gears and wheels to the axle box, while ensuring quality and operational safety. A method is provided for changing the process from cold pressing and hot fitting to oil injection and press-fitting without changing the structure of the axial positioning of the gears and wheels to the axle box, while ensuring quality and operational safety.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wheel oiling press-fit oil-proof component, characterized in that: It is used in the oil injection and press-fitting process of wheels, including a tooth side clearance sealing tool, a non-tooth side clearance sealing gasket, a blocking piece and a wheel axial positioning prompt valve. During the process, the tooth side clearance sealing tool is installed between the tooth side end cover of the axle box and the gear sealing ring, the non-tooth side clearance sealing gasket is installed between the non-tooth side bearing outer ring and the axle box, and the wheel axial positioning prompt valve is movably positioned on the non-tooth side bearing outer ring through the threaded hole of the axle box to monitor whether the oil injection and press-fitting reaches the preset value. The blocking piece is used to block several pre-sealed holes of the axle box during the oil injection and press-fitting process.

2. The wheel oil injection press-fit oil channeling prevention assembly according to claim 1, characterized in that: The wheel axial positioning reminder valve includes an externally threaded fixing sleeve, an internally threaded sliding rod, an O-ring, an adjusting nut, an externally threaded sliding rod and a spring. The externally threaded fixing sleeve is fixed in the threaded hole of the axle box through its external thread. The bottom of the internally threaded sliding rod is pressed into the externally threaded fixing sleeve through the adjusting nut and the spring. O-rings are arranged on the outside of the internally threaded sliding rod and the inside of the externally threaded fixing sleeve. An externally threaded sliding rod is arranged at the bottom end of the internally threaded sliding rod. During the pressing process, the pressing amount of the non-tooth side wheel is determined based on the moving distance of the externally threaded sliding rod.

3. The wheel oil injection press-fit oil channeling prevention assembly according to claim 1, characterized in that: The press-fitting amount of the non-tooth side wheel is confirmed by a dial indicator arranged on the outer end surface of the externally threaded sliding rod.

4. The wheel oil injection press-fit oil channeling prevention assembly according to claim 1, characterized in that: During the press-fitting process of the non-tooth side wheel, when the dial indicator shows a movement value of 0.2-1.3mm, stop press-fitting the non-tooth side wheel.

5. The wheel oil injection press-fit oil channeling prevention assembly according to claim 1, characterized in that: The plurality of pre-sealed holes include a monitoring hole for the bearing, a process hole for measuring the axial positioning of the wheel, and an end cover installation hole.

6. The wheel oil injection press-fit oil channeling prevention assembly according to claim 1, characterized in that: The blocking piece includes a screw plug and a bolt.

7. The wheel oil injection press-fit oil channeling prevention assembly according to claim 1, characterized in that: The non-tooth side clearance sealing gaskets are two semicircular sealing gaskets, and their outer dimensions are the same as the contact surfaces of the non-tooth side sealing cover and the axle box. Bolt holes for connecting the non-tooth side sealing cover and the axle box are provided on the sealing gaskets.

8. The wheel oil injection press-fit oil channeling prevention assembly according to claim 1, characterized in that: The tooth side gap sealing tooling includes bolts, half sealing ring tooling, sealing rings and nuts. The two half sealing ring toolings install the sealing rings outside the gap between the tooth side bearing end cover and the gear sealing ring. Both ends of the half sealing ring tooling are provided with holes for installing bolts. After the two half sealing ring toolings are butt-jointed, they are fixed by bolts and nuts.

9. A method for using the wheel oil injection press-fit oil channeling prevention assembly according to any one of claims 1 to 8, characterized in that: The steps include: Before the wheel is pressed, only the gear side bearing is greased, and the non-gear side bearing is not greased for the time being; The gap between the gear side bearing box and the driven gear is sealed by the gear side sealing tool and the sealing ring, and the gap at the non-gear side bearing end cover is sealed by the non-gear side gap sealing gasket; Use screw plugs, bolts and wheel axial positioning reminder valves to plug the threaded holes and several pre-sealed holes of the axle box; Fill the bearing chamber with clean air through the grease injection hole of the non-tooth side bearing, and complete the oil injection and press-fitting of the non-tooth side wheel at the same time; The press-fitting process reading is monitored by hitting the dial indicator head on the nut head surface of the wheel axial positioning prompt valve. When the preset value is reached, the wheelset press-fitting is completed. Remove the gear side clearance sealing tooling, plugging parts and wheel axial positioning reminder valve; Add bearing grease into the bearing chamber from the grease injection hole of the non-tooth side bearing. Rotate the bearing while adding grease to evenly distribute the grease on the bearing, thus completing the tooth side wheel press-fitting and subsequent processes.

10. The method according to claim 9, characterized in that The inflation gas source is 0.4~0.6MPa compressed air.

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