Drawing device for dismantling bearing body of fuel pump

Abstract

The utility model provides a drawing device for dismantling a fuel pump bearing body, which comprises a mounting plate and a tension bolt, a vertical threaded hole is formed in the middle of the mounting plate, and the tension bolt vertically penetrates through the threaded hole and is in threaded connection with the inner side wall of the threaded hole; a plurality of kidney-shaped holes distributed in the radial direction are formed in the portion, on the outer side of the threaded hole, of the installation plate, a vertical pull rod is installed in each kidney-shaped hole, and the top of each pull rod is detachably locked to the installation plate through a locking piece. A clamping block used for being inserted into a gap between a bearing outer ring and a bearing inner ring of the bearing body is installed at the bottom end of the pull rod. According to the utility model, the clamping block is clamped in a gap between the outer ring and the inner ring of the bearing by rotating the pull rod, and then the tension bolt is rotated, so that the fuel pump bearing is pulled out; and the device is suitable for bearing bodies with different sizes.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulling devices, and in particular relates to a pulling device used for removing a bearing body of a fuel pump. Background Art

[0002] The bearing pulling device is a device for removing the inner bearing from the bearing seat, and is a kind of internal bearing pulling device. The existing pulling device is basically composed of a mounting plate, a tension bolt, a pulling claw and other components. When the existing pulling device is used, the pulling claw is clamped to the outer wall of the bearing body, and then the tension bolt is rotated. The bearing is pulled out through the mutual cooperation between the pulling claw, the tension bolt and the mounting plate, thereby realizing the disassembly of the bearing.

[0003] During use of the above device, since the fuel pump bearing body is embedded in the fuel pump and the rotating shaft of the fuel pump is arranged in the middle of the bearing body, the existing pulling device cannot effectively pull out the bearing on the fuel pump. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a pulling device for removing a fuel pump bearing body, so as to quickly pull out the fuel pump bearing body.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pulling device for removing a fuel pump bearing body, comprising a mounting plate and a tension bolt, a vertical threaded hole is opened in the middle of the mounting plate, the tension bolt vertically passes through the threaded hole, and is threadedly connected to the inner wall of the threaded hole; a plurality of radially distributed waist-shaped holes are opened on the mounting plate outside the threaded hole, a vertical pull rod is installed in each waist-shaped hole, the top of the pull rod is detachably locked to the mounting plate by a locking piece, and the bottom end of the pull rod is installed with a block for inserting into the gap between the outer ring and the inner ring of the bearing body.

[0006] When the pulling device is used, the horizontal and vertical positions of the pull rod in the waist-shaped hole are adjusted first, and then the block at the bottom of the pull rod is inserted into the gap between the outer ring and the inner ring of the bearing body, and then the pull rod is rotated to drive the block to rotate, so that the block is stuck in the gap between the outer ring and the inner ring of the bearing, and the pull rod is locked on the mounting plate by the locking member. Then the lower end of the tension bolt is abutted against the rotating shaft of the fuel pump, and then the tension bolt is rotated to drive the mounting plate to move upward, and the tension bolt, the pull rod and the mounting plate cooperate with each other to realize the convenient and rapid pulling out of the fuel pump bearing.

[0007] Furthermore, a connecting block is installed on the top of the tension bolt located above the mounting plate, a horizontal through hole is opened on the connecting block, and a force rod is slidably connected in the horizontal through hole.

[0008] Furthermore, both ends of the force adding rod are provided with stoppers, and the size of the stoppers is larger than the aperture of the horizontal through hole, so as to prevent the force adding rod from slipping out of the horizontal through hole.

[0009] Furthermore, the locking member is a nut, and the nut is threadedly connected to the outer side wall of the pull rod above the mounting plate.

[0010] Furthermore, the block is a long strip structure. When in use, the block is first inserted into the gap between the outer ring and the inner ring of the bearing body. Since grooves are provided on the side arms on the opposite sides of the outer ring and the inner ring of the bearing body, after the block is inserted, the long strip structure block is driven to rotate by rotating the pull rod, so that the block is stuck in the gap between the outer ring and the inner ring of the bearing.

[0011] Furthermore, the length of the card block matches the gap between the outer ring and the inner ring of the bearing body. When in use, the card block is first inserted into the gap between the outer ring and the inner ring of the bearing body, and then the pull rod is rotated to rotate the card block horizontally by a certain angle so that the card block is stuck in the gap between the outer ring and the inner ring of the bearing.

[0012] Furthermore, the bottom end of the tension bolt is a conical structure.

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

[0014] (1) The utility model inserts the clamping block at the bottom end of the tie rod into the gap between the outer ring and the inner ring of the bearing, and rotates the tie rod to make the clamping block stuck in the gap between the outer ring and the inner ring of the bearing, and rotates the tension bolt to pull out the fuel pump bearing;

[0015] (2) The utility model expands the application range by adjusting the distance between multiple tie rods to match with bearings of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the overall structure diagram of the utility model;

[0017] Figure 2 This is a front cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the top view of the mounting plate of the utility model;

[0019] Among them, 1. mounting plate, 2. waist-shaped hole, 3. threaded hole, 4. pull rod, 5. clamping block, 6. tension bolt, 7. connecting block, 8. horizontal through hole, 9. force rod, 10. locking piece, 11. stopper. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0022] See also Figures 1 to 3 The utility model provides a pulling device for removing a fuel pump bearing body, comprising a mounting plate 1 and a tension bolt 6, wherein a vertical threaded hole 3 is provided in the middle of the mounting plate 1, and the tension bolt 6 vertically passes through the threaded hole 3 and is threadedly connected to the inner wall of the threaded hole 3; a plurality of radially distributed waist-shaped holes 2 are provided on the mounting plate 1 outside the threaded hole 3, and the waist-shaped holes 2 are evenly distributed around the central axis of the mounting plate 1, and a vertical pull rod 4 is installed in each waist-shaped hole 2, and the top of the pull rod 4 is detachably locked on the mounting plate 1 by a locking member 10, and a block 5 for inserting into the gap between the outer ring and the inner ring of the bearing body is installed at the bottom end of the pull rod 4.

[0023] When using the pulling device for removing the fuel pump bearing body provided by the utility model, first adjust the horizontal and vertical positions of the pull rod 4 in the waist-shaped hole 2 to insert the clamping block 5 into the gap between the outer ring and the inner ring of the bearing body, then rotate the pull rod 4 to drive the clamping block 5 to rotate, so that the clamping block 5 is stuck in the gap between the outer ring and the inner ring of the bearing, and then lock the pull rod 4 on the mounting plate 1 through the locking member 10. Then, the lower end of the tension bolt 6 is abutted against the rotating shaft of the fuel pump, and then the tension bolt 6 is rotated to drive the mounting plate 1 to move upward, and the fuel pump bearing can be pulled out conveniently and quickly through the mutual cooperation between the tension bolt 6, the pull rod 4 and the mounting plate 1.

[0024] As a technical optimization solution of the utility model, the block 5 is a long strip structure; when in use, the block 5 is first inserted into the gap between the outer ring and the inner ring of the bearing body. Since grooves are provided on the side arms on the opposite sides of the outer ring and the inner ring of the bearing body, after the block 5 is inserted, the long strip structure block 5 is driven to rotate by rotating the pull rod 4, so that the block 5 is stuck in the gap between the outer ring and the inner ring of the bearing.

[0025] More specifically, the length of the block 5 matches the gap between the outer ring and the inner ring of the bearing body. When in use, the block 5 is first placed into the gap between the outer ring and the inner ring of the bearing body, and then the pull rod 4 is rotated to horizontally rotate the block 5 by a certain angle so that the block 5 is stuck in the gap between the outer ring and the inner ring of the bearing.

[0026] As a technical optimization solution of the utility model, a connecting block 7 is installed on the top of the tension bolt 6 located above the mounting plate 1, and a horizontal through hole 8 is opened on the connecting block 7, and a force rod 9 is slidably connected in the horizontal through hole 8; and, both ends of the force rod 9 are provided with a stop block 11, and the size of the stop block 11 is larger than the aperture of the horizontal through hole 8 to prevent the force rod 9 from slipping out of the horizontal through hole 8.

[0027] As a technical optimization solution of the utility model, the locking piece 10 is a nut, and the nut is threadedly connected to the outer wall of the pull rod 4 above the mounting plate 1 to lock the pull rod 4 on the mounting plate 1 to prevent the pull rod 4 from falling out of the waist-shaped hole 2.

[0028] As a technical optimization solution of the utility model, the bottom end of the tension bolt 6 is set to a conical structure. This arrangement can make the tension bolt 6 stably abut against the rotating shaft of the fuel pump.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pulling device for removing a fuel pump bearing body, comprising a mounting plate and a tension bolt, characterized in that: A vertical threaded hole is provided in the middle of the mounting plate, and the tension bolt passes vertically through the threaded hole and is threadedly connected to the inner wall of the threaded hole; a plurality of radially distributed waist-shaped holes are provided on the mounting plate outside the threaded hole, and a vertical pull rod is installed in each waist-shaped hole, and the top of the pull rod is detachably locked to the mounting plate by a locking piece, and the bottom end of the pull rod is installed with a block for inserting into the gap between the outer ring and the inner ring of the bearing body.

2. A pulling device for removing a fuel pump bearing body according to claim 1, characterized in that: A connecting block is installed on the top of the tension bolt located above the mounting plate. A horizontal through hole is opened on the connecting block. A force rod is slidably connected in the horizontal through hole.

3. A pulling device for removing a fuel pump bearing body according to claim 2, characterized in that: Both ends of the force adding rod are provided with stoppers, and the size of the stoppers is larger than the aperture of the horizontal through hole.

4. A pulling device for removing a fuel pump bearing body according to claim 1, characterized in that: The locking member is a nut, and the nut is threadedly connected to the outer side wall of the pull rod above the mounting plate.

5. A pulling device for removing a fuel pump bearing body according to claim 1, characterized in that: The card block is a long strip structure.

6. A pulling device for removing a fuel pump bearing body according to claim 5, characterized in that: The length of the clamping block matches the gap between the outer ring and the inner ring of the bearing body.

7. A pulling device for removing a fuel pump bearing body according to claim 1, characterized in that: The bottom end of the tension bolt is a conical structure.

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