Bearing pressing device for tractor chassis production

Abstract

The utility model relates to a bearing press-fit device, in particular to a bearing press-fit device for tractor chassis production, which comprises a press-fit assembly and a bearing assembly, the press-fit assembly is fixed at one end of a tractor chassis shell, the press-fit assembly comprises a press plate for press-fitting a bearing, the press plate can move into the tractor chassis shell, and the bearing assembly is fixed on the press-fit assembly. The bearing assembly is fixed to the other end of the tractor chassis shell and comprises a supporting plate used for supporting a bearing, and the supporting plate extends into the tractor chassis shell and can float up and down. According to the bearing pressing device for tractor chassis production, the mounting precision of the bearing can be guaranteed.

Description

Technical Field

[0001] The utility model relates to a bearing pressing device, in particular to a bearing pressing device for the production of a tractor chassis. Background Art

[0002] Att Figure 1 The general structure of a tractor is given. The most important components of the tractor chassis, such as Figure 2 shown, generally include a tractor chassis housing 3, a wheel hub 19 and a rotating shaft 18. The rotating shaft 18 is rotatably connected within the tractor chassis housing 3, and the wheel hub 19 is fixedly connected to one end of the rotating shaft 18. As the main part bearing 4 that supports the rotation of the rotating shaft 18, a special installation tool needs to be designed. Content of the Utility Model

[0003] Technical Objective: In order to overcome the deficiencies in the prior art, the utility model provides a bearing pressing device for the production of a tractor chassis.

[0004] Technical Solution: To achieve the above objective, a bearing pressing device for the production of a tractor chassis disclosed by the utility model includes:

[0005] A pressing assembly, which is fixed to one end of the tractor chassis housing. The pressing assembly includes a pressing plate for pressing the bearing, and the pressing plate can move into the tractor chassis housing.

[0006] A supporting assembly, which is fixed to the other end of the tractor chassis housing. The supporting assembly includes a supporting plate for supporting the bearing, and the supporting plate extends into the tractor chassis housing and can float up and down.

[0007] Preferably, the pressing assembly includes a first sleeve, a screw rod and a hand wheel. One end of the screw rod extends into the first sleeve and is screwed with the first sleeve. The screw rod extends out of the first sleeve and is connected to the hand wheel. One end of the screw rod extending into the first sleeve is rotatably connected to the pressing plate.

[0008] Preferably, a first flange for connecting with the tractor chassis housing is arranged at the bottom end of the first sleeve.

[0009] Preferably, the first sleeve is provided with a notch for placing the bearing.

[0010] Preferably, the supporting assembly includes a second flange for connecting with the tractor chassis housing. The second flange is connected with a telescopic rod, and the supporting plate is connected to the top of the telescopic rod.

[0011] Preferably, the telescopic rod includes an outer sleeve, a spring and a core rod. The outer sleeve is connected to the second flange, the core rod is connected to the support plate, the core rod extends into the outer sleeve, and the spring is arranged inside the outer sleeve. Under the action of the spring, the second flange and the support plate tend to move away from each other.

[0012] Preferably, a pull rod is connected to the bottom of the support plate, and the pull rod passes through the second flange.

[0013] The utility model has the following beneficial effects:

[0014] This device consists of two parts, namely a pressing component and a supporting component. The pressing component is used for pressing the bearing, and the supporting component is used to ensure that it is always in a horizontal state during the bearing pressing process, thereby avoiding the inclination of the bearing during the pressing process and affecting the installation accuracy. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of a tractor chassis;

[0016] Figure 2 is a schematic structural diagram of the bearing installation position;

[0017] Figure 3 is a schematic structural diagram of the installation of the pressing component;

[0018] Figure 4 is a schematic structural diagram of the installation of the supporting component;

[0019] Figure 5 is a cross-sectional view of the connection between the pressing component, the supporting component and the tractor chassis housing;

[0020] Figure 6 is a schematic structural diagram of the supporting component;

[0021] Figure 7 is a schematic structural diagram of the pressing component;

[0022] Figure 8 is a schematic diagram of the principle of bearing pressing.

[0023] In the figure, 1. Pressing component; 2. Supporting component; 3. Tractor chassis housing; 4. Bearing; 5. Pressing plate; 6. Support plate; 7. First sleeve; 8. Screw; 9. Handwheel; 10. First flange; 11. Notch; 12. Second flange; 13. Telescopic rod; 14. Outer sleeve; 15. Spring; 16. Core rod; 17. Pull rod; 18. Rotating shaft; 19. Wheel hub. Detailed Embodiments

[0024] The following combines the attached Figure 1 to the attached Figure 8The principles and features of the present utility model are described. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0025] In this solution, the outer shell 3 of the tractor chassis refers to the attachment Figure 1 It is at the main shaft of the tractor wheel; the installation position of the bearing 4 is between the outer shell 3 of the tractor chassis and the rotating shaft 18, and is used to support the rotation of the rotating shaft 18.

[0026] A bearing pressing device for the production of a tractor chassis includes a pressing component 1 and a supporting component 2. Refer to the attachment Figure 2 Regarding the installation environment, in combination with the attachment Figure 3 and the attachment Figure 4 The pressing component 1 is fixed to one end of the outer shell 3 of the tractor chassis, and the supporting component 2 is fixed to the other end of the outer shell 3 of the tractor chassis.

[0027] The specific structure of the pressing component 1 refers to the attachment Figure 7 The pressing component 1 includes a pressing plate 5, a first sleeve 7, a screw rod 8 and a hand wheel 9. The pressing plate 5 is used to press the bearing 4; at the bottom end of the first sleeve 7, there is a first flange 10 for connecting to the outer shell 3 of the tractor chassis, and the first flange 10 is connected to the outer shell 3 of the tractor chassis through fasteners (such as screws, bolts, etc.). The first sleeve 7 is a cylindrical object, and there is a notch 11 for placing the bearing 4 on its cylindrical side wall, and the angle of this notch 11 should be at least 18°. The outer surface of the screw rod 8 is provided with a rectangular thread. One end of the screw rod 8 extends into the first sleeve 7 and is screwed with the first sleeve 7. The other end of the screw rod 8 extends out of the first sleeve 7 and is connected to the hand wheel 9. One end of the screw rod 8 extending into the first sleeve 7 is rotatably connected to the pressing plate 5. The pressing plate 5 is used to press the bearing 4 downward. Under the action of the screw rod 8, the pressing plate 5 can move into the outer shell 3 of the tractor chassis. The pressing plate 5 is circular and its outer diameter should be larger than the inner ring of the bearing 4.

[0028] The specific structure of the supporting component 2 refers to the attachment Figure 6 The supporting component 2 includes a second flange 12, a supporting plate 6 and a telescopic rod 13. The bottom end of the telescopic rod 13 is connected to the upper surface of the second flange 12, and the top end of the telescopic rod 13 is connected to the lower surface of the supporting plate 6. The telescopic rod 13 includes an outer sleeve 14, a spring 15 and a core rod 16. The outer sleeve 14 is connected to the second flange 12, the core rod 16 is connected to the supporting plate 6, the core rod 16 extends into the outer sleeve 14, and the spring 15 is arranged inside the outer sleeve 14. Under the action of the spring 15, the second flange 12 and the supporting plate 6 have a tendency to move away from each other. The supporting plate 6 is used to support the bearing 4. The supporting plate 6 is circular, and the outer diameter of the supporting plate 6 should be smaller than the outer ring of the bearing 4 and larger than the inner ring of the bearing 4. The supporting plate 6 extends into the outer shell 3 of the tractor chassis and can float up and down. A pull rod 17 is connected to the bottom of the supporting plate 6, and the pull rod 17 passes through the second flange 12. The supporting plate 6 can be dragged downward through the pull rod 17.

[0029] It should be noted that, for the need of installing the bearing 4, inner holes for machining threads need to be left at both ends of the tractor chassis housing 3 during recasting, and these inner holes are for connecting with the first flange 10 and the second flange 12.

[0030] Specifically, for the press-fitting method of the bearing 4, refer to the appendix Figure 8 . When press-fitting the bearing 4, first insert the bearing 4 into the first sleeve 7 through the notch, let the support plate 6 hold the bearing 4, and then rotate the screw rod 8 to press-fit the bearing 4 in place to complete the installation of one side of the bearing 4; then swap the installation positions of the pressing assembly 1 and the supporting assembly 2, and repeat the above operations to complete the installation of the other side.

[0031] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A bearing pressing device for tractor chassis production, characterized in that: include: A press-fit assembly (1), the press-fit assembly (1) being fixed to one end of a tractor chassis shell (3), the press-fit assembly (1) comprising a pressing plate (5) for pressing a bearing (4), the pressing plate (5) being movable into the tractor chassis shell (3); A supporting assembly (2) is fixed to the other end of the tractor chassis shell (3), and the supporting assembly (2) comprises a support plate (6) for supporting the bearing (4). The support plate (6) extends into the tractor chassis shell (3) and can float up and down.

2. The bearing pressing device for producing tractor chassis according to claim 1, characterized in that: The pressing assembly (1) comprises a first sleeve (7), a screw rod (8) and a hand wheel (9); one end of the screw rod (8) extends into the first sleeve (7) and is screwed to the first sleeve (7); the screw rod (8) extends out of the first sleeve (7) and is connected to the hand wheel (9); one end of the screw rod (8) extends into the first sleeve (7) and is rotationally connected to the pressure plate (5).

3. The bearing pressing device for producing tractor chassis according to claim 2, characterized in that: The bottom end of the first sleeve (7) is provided with a first flange (10) for connecting to the tractor chassis shell (3).

4. The bearing pressing device for producing tractor chassis according to claim 2, characterized in that: The first sleeve (7) is provided with a notch (11) for accommodating the bearing (4).

5. The bearing pressing device for producing tractor chassis according to claim 1, characterized in that: The supporting assembly (2) comprises a second flange (12) for connecting to a tractor chassis shell (3), the second flange (12) being connected to a telescopic rod (13), and the supporting plate (6) being connected to the top of the telescopic rod (13).

6. The bearing pressing device for producing tractor chassis according to claim 5, characterized in that: The telescopic rod (13) comprises an outer sleeve (14), a spring (15) and a core rod (16); the outer sleeve (14) is connected to the second flange (12); the core rod (16) is connected to the support plate (6); the core rod (16) extends into the outer sleeve (14); the spring (15) is arranged in the outer sleeve (14); under the action of the spring (15), the second flange (12) and the support plate (6) have a tendency to move away from each other.

7. The bearing pressing device for producing tractor chassis according to claim 5, characterized in that: The bottom of the support plate (6) is connected to a pull rod (17), and the pull rod (17) passes through the second flange (12).

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