Hub oil seal press fitting tool

Abstract

The utility model discloses a hub oil seal press-fitting tool, which relates to the field of oil seal press-fitting, and comprises a hub, a pressing plate and a bottom plate, the bottom of the pressing plate is provided with a boss, the bottom of the boss is provided with a buffer assembly, the buffer assembly comprises a storage cavity arranged inside the boss and a through hole arranged at the bottom of the boss, and the through hole is arranged at the bottom of the boss. A plurality of buffer springs are installed in the storage cavity, the bottom ends of the buffer springs are connected with movable rings, connecting rings extending to the bottom of the boss are arranged at the bottoms of the movable rings, and pressing rings are fixed to the bottom ends of the connecting rings. Through the arrangement of the sliding seats, the sliding rods, the push plates and the clamping plates, when the guide columns move downwards, the guide columns can drive the fixing plates to move downwards, the fixing plates push the push plates to rotate, the push plates push the sliding seats to slide on the sliding rods, the sliding seats drive the clamping plates to move, and the clamping plates clamp the two sides of a hub, so that the stability of the hub is improved; and the hub is prevented from moving in the oil seal press-fitting process, so that the press-fitting effect of the press-fitting tool is improved.

Description

Technical Field

[0001] The utility model relates to the field of oil seal press-fitting, in particular to a hub oil seal press-fitting tool. Background Art

[0002] The wheel hub seal, also known as the wheel seal, is an important component for the operation of wheeled vehicles. The wheel hub seal is a key component for the operation of wheeled vehicles; its main function is to prevent oil leakage and prevent contaminants from entering the wheel hub assembly, otherwise it will cause damage to other components and performance degradation, and the oil seal needs to be installed in the wheel hub using a press-fit tool.

[0003] According to a Chinese patent with publication number CN218193605U, a vehicle axle hub oil seal press-fitting tool is disclosed. The utility model solves the positioning, flat placement, and guiding of the oil seal press-fitting and increases the tool guiding function without touching the oil seal edge, thereby eliminating the problem of oil seal press-fitting deformation; prolonging the service life of the oil seal and solving the problem of oil leakage in the wheel hub assembly.

[0004] Regarding the above-mentioned disclosed patent content, since the positioning guide ring is clamped on the top of the wheel hub to limit the top of the wheel hub, when the oil seal is pressed, the top of the wheel hub will be subjected to the pressure applied by the pressing head, and the bottom of the wheel hub is not clamped and limited, the wheel hub may be offset, thereby reducing the stability of the wheel hub and making it impossible for the pressing head to accurately press the oil seal into the inside of the wheel hub, thereby reducing the pressing efficiency of the oil seal. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a wheel hub oil seal press-fitting tool to solve the technical problem that the wheel hub may be offset when the oil seal is press-fitted, thereby affecting the press-fitting efficiency of the oil seal.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wheel hub oil seal pressing tool, comprising a wheel hub, a pressure plate and a base plate, a boss is provided at the bottom of the pressure plate, a buffer assembly is provided at the bottom of the boss, and the buffer assembly comprises a storage cavity opened inside the boss and a through opening opened at the bottom of the boss, a plurality of buffer springs are installed inside the storage cavity, and the bottom end of the buffer spring is connected to a movable ring, the bottom of the movable ring is provided with a connecting ring extending to the bottom of the boss, and a pressure ring is fixed to the bottom end of the connecting ring, a support frame is installed on the top of the base plate, and sliding rods are fixed on both sides of the interior of the support frame, a sliding seat is sleeved on the outer wall of the sliding rod, and one side of the sliding seat is connected to a splint through a fixing rod, and the top of the sliding seat is connected to a push plate through a rotating shaft.

[0007] By adopting the above technical solution, when the boss drives the pressure ring to move downward, the pressure ring first contacts the oil seal, and as the boss continues to move downward, the movable ring inside the receiving cavity can squeeze the buffer spring.

[0008] Furthermore, a positioning guide ring is provided on the top of the wheel hub, and fixing plates are installed on both sides of the bottom of the positioning guide ring, and the wheel hub is placed in the middle position of the top of the base plate.

[0009] By adopting the above technical solution, the fixing plate can support the guide column, and the positioning guide ring can be separated from the wheel hub.

[0010] Furthermore, the tops of the two fixing plates are connected with guide pillars, the outer walls of the guide pillars are sleeved with guide plates, and a pressure plate is connected between the two guide plates.

[0011] By adopting the above technical solution, the guide plate can slide on the guide column, thereby guiding the pressure plate to prevent the pressure plate from deviating.

[0012] Furthermore, a spring is connected between the bottom of the guide plate and the top of the fixed plate, and the spring is sleeved on the outer wall of the guide column.

[0013] By adopting the above technical solution, when the guide plate moves downward, it can squeeze the spring, so that the spring is compressed, and the compressed spring is convenient for subsequently pushing the guide plate to return and move.

[0014] Furthermore, the pressing plate is slidably connected to the guide column via a guide plate, electric push rods are installed on both sides of the top of the support frame, and the output end of the electric push rod is connected to the top of the guide column via a telescopic rod.

[0015] By adopting the above technical solution, when the pressure plate moves downward, it will drive the guide plate to slide on the guide pillar, thereby improving the stability of the pressure plate when moving.

[0016] Furthermore, the top of the push plate is connected to the fixed plate via a rotating shaft, and a through hole is provided on the clamping plate.

[0017] By adopting the above technical solution, the push plate can push the slide seat to move when it rotates, and the slide seat can drive the clamping plate to move.

[0018] Furthermore, the height of the pressure ring is smaller than the depth of the receiving cavity, and the diameter of the pressure ring is smaller than the inner diameter of the positioning guide ring.

[0019] By adopting the above technical solution, the pressure ring can be moved into the storage cavity, and the pressure ring can be pressed into the oil seal conveniently.

[0020] Furthermore, a cylinder is installed on the top of the support frame, and a pressure head is installed on the output end of the cylinder through a piston rod.

[0021] By adopting the above technical solution, when the oil seal needs to be press-fitted, the user can start the cylinder, and the operation of the cylinder can extend the piston rod, thereby driving the pressure head to move downward.

[0022] In summary, the utility model mainly has the following beneficial effects:

[0023] 1. The utility model is provided with a sliding seat, a sliding rod, a push plate and a clamping plate. When the guide column moves downward, it drives the fixed plate to move downward, and the fixed plate drives the push plate to rotate. The push plate drives the sliding seat to slide on the sliding rod, and the sliding seat drives the clamping plate to move. The clamping plate clamps the two sides of the wheel hub, thereby improving the stability of the wheel hub and preventing the wheel hub from moving during the process of pressing the oil seal, thereby improving the pressing effect of the pressing tool.

[0024] 2. The utility model is provided with a buffer assembly. When the boss drives the pressure ring to move downward, the pressure ring contacts the oil seal first. As the boss continues to move downward, the movable ring inside the storage cavity can squeeze the buffer spring. The buffer spring will be compressed after being stressed, so as to buffer the pressure generated by the downward movement of the boss, prevent the boss from moving downward and directly contacting the oil seal to apply excessive pressure to the oil seal, avoid causing serious deformation and damage to the oil seal, thereby improving the press-fitting and protection efficiency of the oil seal, and increasing the service life of the oil seal. When the boss continues to move downward, the pressure ring can cooperate with the boss to press-fit the oil seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the overall front section structure of the utility model;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the positioning guide ring of the utility model;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the splint of the utility model;

[0029] Figure 5 For the utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 6 It is a bottom-up three-dimensional structural schematic diagram of the pressing plate of the utility model.

[0031] In the figure: 1. wheel hub; 2. pressure plate; 3. pressure head; 4. guide column; 5. guide plate; 6. spring; 7. positioning guide ring; 8. buffer assembly; 801. storage cavity; 802. buffer spring; 803. movable ring; 804. connecting ring; 805. pressure ring; 806. through hole; 9. boss; 10. fixed plate; 11. electric push rod; 12. cylinder; 13. support frame; 14. push plate; 15. slide rod; 16. slide seat; 17. clamping plate; 18. through hole; 19. bottom plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0033] The following describes an embodiment of the utility model based on its overall structure.

[0034] Embodiment 1:

[0035] A wheel hub oil seal press fitting, such as Figure 1-Figure 6 As shown, it includes a wheel hub 1, a pressure plate 2 and a bottom plate 19, a boss 9 is provided at the bottom of the pressure plate 2, a buffer assembly 8 is provided at the bottom of the boss 9, a support frame 13 is installed on the top of the bottom plate 19, and slide rods 15 are fixed on both sides of the inner part of the support frame 13, a slide seat 16 is sleeved on the outer wall of the slide rod 15, and a clamping plate 17 is connected to one side of the slide seat 16 through a fixed rod, and a push plate 14 is connected to the top of the slide seat 16 through a rotating shaft, and an arc groove is provided on one side of the clamping plate 17. When the push plate 14 rotates, it pushes the slide seat 16 to move, and the slide seat 16 drives the clamping plate 17 to move, so that the clamping plate 17 clamps the wheel hub 1 to improve the stability of the wheel hub 1, and a positioning guide ring 7 is provided on the top of the wheel hub 1 , fixing plates 10 are installed on both sides of the bottom of the positioning guide ring 7, and the fixing plates 10 can support the guide column 4. At the same time, the positioning guide ring 7 can be separated from the wheel hub 1, and the wheel hub 1 is placed in the middle position of the top of the bottom plate 19. The top of the push plate 14 is connected to the fixing plate 10 through a rotating shaft. A through hole 18 is opened on the clamping plate 17 so that when the push plate 14 rotates, it can push the slide 16 to move, and the slide 16 can drive the clamping plate 17 to move. A cylinder 12 is installed on the top of the support frame 13, and a pressure head 3 is installed on the output end of the cylinder 12 through a piston rod. When the oil seal needs to be press-fitted, the user can start the cylinder 12. The operation of the cylinder 12 can extend the piston rod, thereby driving the pressure head 3 to move downward.

[0036] Specifically, the buffer assembly 8 includes a storage chamber 801 opened inside the boss 9 and a through opening 806 opened at the bottom of the boss 9. A plurality of buffer springs 802 are installed inside the storage chamber 801, and a movable ring 803 is connected to the bottom end of the buffer spring 802. When the boss 9 drives the pressure ring 805 to move downward, the pressure ring 805 first contacts the oil seal, and as the boss 9 continues to move downward, the movable ring 803 inside the storage chamber 801 can squeeze the buffer spring 802.

[0037] See also Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6The bottom of the movable ring 803 is provided with a connecting ring 804 extending to the bottom of the boss 9, and a pressing ring 805 is fixed to the bottom end of the connecting ring 804. The pressing ring 805 is slidably connected to the storage cavity 801 through the connecting ring 804 and the movable ring 803. When the pressing ring 805 moves into the storage cavity 801, the movable ring 803 will squeeze the buffer spring 802, so that the buffer spring 802 is compressed. The height of the pressing ring 805 is smaller than the depth of the storage cavity 801, and the diameter of the pressing ring 805 is smaller than the inner diameter of the positioning guide ring 7, so that the pressing ring 805 can move into the storage cavity 801.

[0038] Embodiment 2:

[0039] On the basis of the above-mentioned embodiment 1, since the pressure plate 2 moves downward to press the oil seal, it is necessary to ensure that the pressure plate 2 can move up and down stably to prevent the pressure plate 2 from shifting. Therefore, the pressure plate 2 can be guided by setting the following structure to improve the stability of the pressure plate 2 when it moves up and down.

[0040] See also Figure 1-Figure 3 The tops of the two fixing plates 10 are connected to the guide columns 4, and the top sides of the support frame 13 are installed with electric push rods 11, and the output ends of the electric push rods 11 are connected to the tops of the guide columns 4 through telescopic rods. When the positioning guide ring 7 needs to be clamped on the wheel hub 1, the user can start the electric push rods 11, and the electric push rods 11 can extend the telescopic rods, thereby driving the guide columns 4 to move downward, and then driving the fixing plates 10 to move downward, and the fixing plates 10 drive the positioning guide ring 7 to move downward, so that the positioning guide ring 7 is clamped on the wheel hub 1, and the outer wall of the guide column 4 A guide plate 5 is sleeved, and a pressure plate 2 is connected between the two guide plates 5. The pressure plate 2 is slidably connected to the guide column 4 through the guide plate 5. The guide plate 5 can slide on the guide column 4, and then guide the pressure plate 2 to prevent the pressure plate 2 from deviating, thereby improving the stability of the pressure plate 2 when moving. A spring 6 is connected between the bottom of the guide plate 5 and the top of the fixed plate 10. The spring 6 is sleeved on the outer wall of the guide column 4. When the guide plate 5 moves downward, it can squeeze the spring 6, so that the spring 6 is compressed, and the compression of the spring 6 is convenient for subsequently pushing the guide plate 5 to reset and move.

[0041] The working principle of the utility model is as follows: first, the power is turned on before using the tooling, and then the user places the wheel hub 1 at the middle position of the top of the bottom plate 19, and then the electric push rod 11 is started. The operation of the electric push rod 11 can extend the telescopic rod, thereby driving the guide column 4 to move downward, and then driving the fixing plate 10 to move downward, and the fixing plate 10 drives the positioning guide ring 7 to move downward, so that the positioning guide ring 7 is clamped on the wheel hub 1, so that the top of the wheel hub 1 can be limited, and at the same time, the downward movement of the fixing plate 10 drives the push plate 14 to rotate, and the push plate 14 drives the slide seat 16 to slide on the slide rod 15, and the slide seat 16 drives the clamping plate 17 to move, and the clamping plate 17 clamps the two sides of the wheel hub 1;

[0042] Then place the oil seal in the positioning guide ring 7, and then start the cylinder 12. The operation of the cylinder 12 can extend the piston rod, thereby driving the pressure head 3 to move downward, and the pressure head 3 pushes the pressure plate 2 to move downward, and the pressure plate 2 drives the boss 9 to move downward. When the boss 9 drives the pressure ring 805 to move downward, the pressure ring 805 first contacts the oil seal, and as the boss 9 continues to move downward, the movable ring 803 inside the storage cavity 801 can squeeze the buffer spring 802, and the buffer spring 802 will be compressed after being subjected to force, so as to buffer the pressure generated by the downward movement of the boss 9, and as the boss 9 continues to move downward, the oil seal can be pressed into the inside of the wheel hub 1.

[0043] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A wheel hub oil seal press-fitting tool, comprising a wheel hub (1), a pressing plate (2) and a bottom plate (19), characterized in that: The bottom of the pressure plate (2) is provided with a boss (9), the bottom of the boss (9) is provided with a buffer assembly (8), and the buffer assembly (8) comprises a storage cavity (801) opened inside the boss (9) and a through opening (806) opened at the bottom of the boss (9), a plurality of buffer springs (802) are installed inside the storage cavity (801), and the bottom end of the buffer spring (802) is connected to a movable ring (803), and the bottom of the movable ring (803) is provided with an extension A connecting ring (804) is connected to the bottom of the boss (9), and a pressure ring (805) is fixed to the bottom end of the connecting ring (804), a support frame (13) is installed on the top of the bottom plate (19), and sliding rods (15) are fixed on both sides of the inside of the support frame (13), the outer wall of the sliding rod (15) is sleeved with a sliding seat (16), and one side of the sliding seat (16) is connected to a clamping plate (17) through a fixing rod, and the top of the sliding seat (16) is connected to a push plate (14) through a rotating shaft.

2. The wheel hub oil seal press-fitting tool according to claim 1, characterized in that: A positioning guide ring (7) is clamped on the top of the wheel hub (1), and fixing plates (10) are installed on both sides of the bottom of the positioning guide ring (7). The wheel hub (1) is placed at the top middle position of the bottom plate (19).

3. The wheel hub oil seal press-fitting tool according to claim 2, characterized in that: The tops of the two fixing plates (10) are both connected to guide pillars (4), the outer walls of the guide pillars (4) are sleeved with guide plates (5), and a pressure plate (2) is connected between the two guide plates (5).

4. The wheel hub oil seal press-fitting tool according to claim 3, characterized in that: A spring (6) is connected between the bottom of the guide plate (5) and the top of the fixed plate (10), and the spring (6) is sleeved on the outer wall of the guide column (4).

5. The wheel hub oil seal press-fitting tool according to claim 3, characterized in that: The pressing plate (2) is slidably connected to the guide column (4) via a guide plate (5); electric push rods (11) are installed on both sides of the top of the support frame (13); and the output end of the electric push rod (11) is connected to the top of the guide column (4) via a telescopic rod.

6. The wheel hub oil seal press-fitting tool according to claim 1, characterized in that: The top of the push plate (14) is connected to the fixed plate (10) via a rotating shaft, and a through hole (18) is provided on the clamping plate (17).

7. The wheel hub oil seal press-fitting tool according to claim 1, characterized in that: The height of the pressure ring (805) is smaller than the depth of the receiving cavity (801), and the diameter of the pressure ring (805) is smaller than the inner diameter of the positioning guide ring (7).

8. The wheel hub oil seal press-fitting tool according to claim 1, characterized in that: A cylinder (12) is installed on the top of the support frame (13), and a pressure head (3) is installed on the output end of the cylinder (12) via a piston rod.

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