A floating seal seat device, a steering axle, and a mining dump truck

Abstract

This utility model discloses a floating seal seat device, a steering axle, and a mining dump truck. The left floating seal seat is detachably connected to the left fixed component; the right floating seal seat is detachably connected to the right fixed component, forming an installation cavity between the right and left floating seal seats. The floating seal is located within the installation cavity, with its left side inside the left floating seal seat and its right side inside the right floating seal seat. The axial pressing and positioning of the floating seals are achieved through the seat cavities of the left and right floating seal seats, sealing both seats. An adjusting component is disposed between the left fixed component and the left floating seal seat, allowing axial movement of the left floating seal seat to adjust the floating seal gap. Therefore, this utility model proposes a floating seal seat device that is easy to adjust the floating seal gap, has low manufacturing cost, and is replaceable.

Description

Technical Field

[0001] This utility model relates to a floating sealing seat device, belonging to the technical field of mining dump trucks. Background Technology

[0002] The steering axle is a key component of a vehicle's drivetrain, primarily responsible for supporting the weight of the front of the vehicle, transmitting force and torque, and enabling steering. Its performance directly affects the vehicle's handling, safety, and comfort. Current technology employs an integrated structure where the floating seal seat is integrated with both sides of the wheel hub and the steering knuckle, with the floating seal mounted within the seat cavity to seal the wheel-side lubricating oil. This structure has fewer parts, facilitating installation and maintenance, but it places high demands on the casting of the wheel hub and steering knuckle. Casting and machining defects are not permitted in the floating seal cavity area, and the floating seal clearance cannot be adjusted according to usage requirements. Furthermore, changing the floating seal model necessitates replacing the entire wheel hub and steering knuckle, resulting in high maintenance costs. Utility Model Content

[0003] To address the aforementioned problems in the installation and use of floating seals, this utility model proposes a floating seal seat device that is easy to adjust the floating seal gap, has low manufacturing cost, and is replaceable.

[0004] This utility model is achieved according to the following technical solution:

[0005] In a first aspect, this utility model provides a floating sealing seat device, comprising:

[0006] Left fixed component, right fixed component;

[0007] The left floating sealing seat is detachably connected to the left fixed component;

[0008] The right floating seal seat is detachably connected to the right fixed component, and an installation cavity is formed between the right floating seal seat and the left floating seal seat;

[0009] A floating seal is located in the mounting cavity. The left side of the floating seal is located in the left floating seal seat, and the right side of the floating seal is located in the right floating seal seat. The axial pressing and positioning of the floating seal is achieved through the seat cavities of the left and right floating seal seats, thereby sealing the left and right floating seal seats.

[0010] An adjustment component is positioned between the left fixed component and the left floating seal seat to move the left floating seal seat axially, thereby adjusting the floating seal gap.

[0011] In some embodiments, the adjusting component is a set of shims stacked axially, and the thickness of the shim set is adjusted by adding or removing shims.

[0012] In some embodiments, the left fixed component has an axially extending boss on the side facing the left floating seal seat, and the left floating seal seat has a recessed hole that mates with the boss to form a stop structure.

[0013] In some embodiments, a sealing member is provided between the boss and the opposing circumferential surface of the left floating sealing seat.

[0014] In some embodiments, the sealing component is an O-ring, and the boss is provided with a groove for mounting the O-ring.

[0015] In some embodiments, the left fixed component has an axially extending circumferential threaded hole on the side facing the left floating seal seat, and the left floating seal seat has a circumferential through hole corresponding to the circumferential threaded hole. The left floating seal seat and the left fixed component are connected together by circumferential bolts.

[0016] In some embodiments, the right fixed component has an axially extending flange near the right floating seal seat, the flange having a groove facing the right floating seal seat, and the protrusion of the right floating seal seat being inserted into the groove to form a stop structure.

[0017] In some embodiments, the protrusion is provided with an axially extending circumferential through hole, and the groove is provided with circumferential threaded holes corresponding one-to-one with the circumferential through hole, and the right floating seal seat is connected to the right fixed component by circumferential bolts.

[0018] In some embodiments, a sealing member is provided between the flange and the opposing circumferential surface of the protrusion.

[0019] In some embodiments, the sealing component is an O-ring, and the protrusion has a groove for mounting the O-ring.

[0020] Secondly, this utility model provides a steering axle, including the above-mentioned floating sealing seat device; wherein, the left fixed component is a wheel hub, and the right fixed component is a steering knuckle; the wheel hub is provided with an inner hole, a bearing is installed in the inner hole, and the bearing is axially positioned by a fixed seat.

[0021] Thirdly, this utility model provides a mining dump truck, including the above-mentioned floating sealing seat device; or the above-mentioned steering axle.

[0022] The beneficial effects of this utility model are:

[0023] This invention relates to a device for installing floating seals on steering axles. This device enables rapid adjustment of the floating seal gap to meet usage requirements. The wheel hub and steering knuckle do not need to consider the floating seal seat cavity structure, resulting in low casting costs and a simple structure. The split floating seal seat can be machined from bar stock, which is convenient to process, easy to measure, and allows for precise control of machining dimensions and accuracy. If it is necessary to change the floating seal model, it can be achieved by replacing the split floating seal seat, resulting in low maintenance costs and easy operation. Attached Figure Description

[0024] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0025] In the attached diagram:

[0026] Figure 1 This is a cross-sectional view of the overall structure of the floating sealing seat device of this utility model;

[0027] Figure 2 This is a partial structural cross-sectional view of the floating sealing seat device of this utility model.

[0028] Attached diagram labels: 1-hub, 2-bearing, 3-threaded hole, 4-gasket set, 5-O-ring, 6-left floating seal seat, 7-bolt, 8-floating seal, 9-right floating seal seat, 10-bolt, 11-O-ring, 12-steering knuckle, 13-fixed seat, 14-bore, 15-protrusion, 16-flange, 5-1-seat cavity, 9-1-seat cavity, A-floating seal gap value.

[0029] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0031] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] like Figure 1 , Figure 2 As shown, a floating seal seat device, mainly used on a steering knuckle, includes a left fixed component (i.e., the hub 1 in the figure), a right fixed component (i.e., the steering knuckle 12 in the figure), a left floating seal seat 6, a right floating seal seat 9, a floating seal 8, and an adjusting component. The left floating seal seat 6 is detachably connected to the hub 1; the right floating seal seat 9 is detachably connected to the steering knuckle 12, and a mounting cavity is formed between the right floating seal seat 9 and the left floating seal seat 6; the floating seal 8 is located in the mounting cavity, with the left side of the floating seal 8 located in the left floating seal seat 6 and the right side of the floating seal 8 located in the right floating seal seat 9. The axial pressing and positioning of the floating seal 8 is achieved through the seat cavity 5-1 of the left floating seal seat 6 and the seat cavity 9-1 of the right floating seal seat 9, sealing the left and right floating seal seats 6 and 9 to prevent lubricating oil from leaking out of the left and right floating seal seats 6 and 9; the adjusting component is set between the hub 1 and the left floating seal seat 6, and moves the left floating seal seat 6 axially, thereby adjusting the floating seal gap value A. Therefore, if the floating seal 8 model needs to be replaced due to product iteration and upgrade, only the left floating seal seat 6 and the right floating seal seat 9 need to be replaced, and the thickness of the adjustment components needs to be changed to meet the usage requirements. The maintenance cost is low and the operation is convenient.

[0034] Preferred solutions, such as Figure 1 , Figure 2 As shown, the adjustment component is a set of gaskets stacked together axially. The thickness of the gasket set can be adjusted by adding or removing gaskets, thereby quickly adjusting the floating sealing gap.

[0035] Continue to refer to Figure 1 , Figure 2As shown, the hub 1 has an axially extending boss 14 on the side facing the left floating seal 6, and the left floating seal 6 has a concave hole that cooperates with the boss 14 to form a stop structure.

[0036] Further options, such as Figure 1 , Figure 2 As shown, a sealing component is provided between the boss 14 and the opposing circumferential surfaces of the left floating seal seat 6 to prevent lubricating oil leakage.

[0037] Preferred solutions, such as Figure 1 , Figure 2 As shown, the sealing component is an O-ring 5, and the boss has a groove for installing the O-ring 5.

[0038] Further options, such as Figure 1 , Figure 2 As shown, the hub 1 has an axially extending circumferential threaded hole 3 on the side facing the left floating seal seat 6. The left floating seal seat 6 has circumferential through holes that correspond one-to-one with the circumferential threaded hole 3. The left floating seal seat 6 is connected to the hub 1 by circumferential bolts 7.

[0039] Further options, such as Figure 1 , Figure 2 As shown, the hub 1 has an inner hole for mounting the bearing 2, and the bearing is axially positioned by the fixing seat 13.

[0040] Continue to refer to Figure 1 , Figure 2 As shown, the steering knuckle 12 has an axially extending flange 16 near the right floating seal seat 9. The flange 16 has a groove facing the right floating seal seat 9, and the protrusion 15 of the right floating seal seat 9 is inserted into the groove to form a stop structure.

[0041] In a further embodiment, the protrusion 15 is provided with an axially extending circumferential through hole, and the groove is provided with circumferential threaded holes corresponding to the circumferential through holes. The right floating seal seat 9 is connected to the steering knuckle 12 by the circumferential bolt 10.

[0042] Further options, such as Figure 1 , Figure 2 As shown, a sealing component is provided between the opposing circumferential surfaces of the flange 16 and the protrusion 15.

[0043] Preferred solutions, such as Figure 1 , Figure 2 As shown, the sealing component is an O-ring 11, and the protrusion 15 has a groove for installing the O-ring 11 to prevent lubricating oil from leaking out.

[0044] In summary, this utility model provides a floating sealing seat device that achieves the following functions and effects:

[0045] 1. Reliable performance; the number of gaskets installed can be adjusted to ensure the required floating seal gap.

[0046] 2. Low manufacturing cost: The floating seal seat is independent of the wheel hub and steering knuckle. The wheel hub and steering knuckle castings have simple structures. The split floating seal seat can be machined from bar stock. The manufacturing of the seat cavity surface is easy to control and realize, resulting in a low scrap rate.

[0047] 3. Maintenance and updates to the floating seal can be achieved by replacing the split-type floating seal seat, resulting in low maintenance costs.

[0048] The mining dump truck provided by this utility model is described below. The mining dump truck described below and the floating sealing seat device described above can be referred to in correspondence.

[0049] The present invention provides a mining dump truck, which may include the floating sealing seat device as described in any of the above embodiments.

[0050] The beneficial effects achieved by the mining dump truck provided by this utility model are consistent with the beneficial effects achieved by the floating sealing seat device provided by this utility model, so they will not be repeated here.

[0051] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0052] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0053] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A floating sealing seat device, characterized in that, include: Left fixed component, right fixed component; The left floating sealing seat is detachably connected to the left fixed component; The right floating seal seat is detachably connected to the right fixed component, and an installation cavity is formed between the right floating seal seat and the left floating seal seat; A floating seal is located in the mounting cavity. The left side of the floating seal is located in the left floating seal seat, and the right side of the floating seal is located in the right floating seal seat. The axial pressing and positioning of the floating seal is achieved through the seat cavities of the left and right floating seal seats, thereby sealing the left and right floating seal seats. An adjustment component is positioned between the left fixed component and the left floating seal seat to move the left floating seal seat axially, thereby adjusting the floating seal gap.

2. The floating sealing seat device according to claim 1, characterized in that: The adjustment component is a set of shims stacked together axially, and the thickness of the shim set is adjusted by adding or removing shims.

3. The floating sealing seat device according to claim 1, characterized in that: The left fixed component has an axially extending boss on the side facing the left floating seal seat, and the left floating seal seat has a recessed hole that cooperates with the boss to form a stop structure.

4. A floating sealing seat device according to claim 3, characterized in that: A sealing component is provided between the boss and the opposing circumferential surface of the left floating sealing seat.

5. A floating sealing seat device according to claim 4, characterized in that: The sealing component is an O-ring, and the boss is provided with a groove for installing the O-ring.

6. The floating sealing seat device according to claim 1, characterized in that: The left fixed component has an axially extending circumferential threaded hole on the side facing the left floating seal seat. The left floating seal seat has circumferential through holes that correspond one-to-one with the circumferential threaded holes. The left floating seal seat and the left fixed component are connected together by circumferential bolts.

7. A floating sealing seat device according to claim 1, characterized in that: The right fixed component has an axially extending flange near the right floating seal seat. The flange has a groove facing the right floating seal seat, and the protrusion of the right floating seal seat is inserted into the groove to form a stop structure.

8. A floating sealing seat device according to claim 7, characterized in that: The protrusion has an axially extending circumferential through hole, and the groove has circumferential threaded holes that correspond one-to-one with the circumferential through holes. The right floating seal seat and the right fixed component are connected together by circumferential bolts.

9. A floating sealing seat device according to claim 7, characterized in that: A sealing component is provided between the flange and the circumferential surface facing the protrusion.

10. A floating sealing seat device according to claim 9, characterized in that: The sealing component is an O-ring, and the protrusion has a groove for installing the O-ring.

11. A steering axle, characterized in that: The floating sealing seat device includes any one of claims 1 to 10; wherein the left fixed component is a wheel hub and the right fixed component is a steering knuckle; The hub has an inner hole in which a bearing is installed, and the bearing is axially positioned by a fixed seat.

12. A mining dump truck, characterized in that: It includes the floating sealing seat device according to any one of claims 1 to 10; or, it includes the steering axle according to claim 11.

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