Bearing press tool

Abstract

The utility model belongs to a bearing installation auxiliary tool, and provides a bearing pressing tool, including a base, a pillar, a gear, a rack, a handwheel and a pressure head. The pillar is vertically connected to one side of the top surface of the base, and two mutually perpendicular first and second through holes are provided on the top of the pillar. The rack is vertically slidably connected in the first through hole, and the gear is rotatably connected in the second through hole through a rotating shaft. The gear meshes with the rack, and the bottom of the rack is connected to the pressure head, and one end of the rotating shaft is connected to the handwheel. The gear is driven to rotate by rotating the handwheel, and the gear rotation drives the rack to move in the vertical direction. The pressure head at the bottom of the rack is used to press the bearing into the sleeve. The pressing process is smoother and will not damage the bearing. The gear drives the rack transmission, which is more time-saving and labor-saving during operation. The base is provided with a through groove, and the bearing can be pressed out of the sleeve by pressing the pressure head to realize the bearing removal. The utility model is convenient for both installing and disassembling bearings, and has a simple structure and convenient operation.

Description

Technical Field

[0001] The utility model belongs to a bearing installation auxiliary tool, in particular to a bearing press-fitting tool. Background Art

[0002] Bearings are an important part of mechanical equipment. Their main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Types of bearings include sliding bearings, spherical bearings, rolling bearings, groove ball bearings, angular contact bearings, self-aligning ball bearings, thrust ball bearings, etc.

[0003] In some usage scenarios, the bearing needs to be installed in a sleeve. A common installation method is to place the bearing in the center of the sleeve and then use a hammer to hammer the bearing into the sleeve. This installation method may damage the bearing and is time-consuming and labor-intensive. Utility Model Content

[0004] The utility model provides a bearing press-fitting tool, aiming to solve the above technical problem.

[0005] The utility model is implemented as follows: a bearing pressing tool comprises a base, a pillar, a gear, a rack, a handwheel and a pressing head, wherein the pillar is vertically connected to one side of the top surface of the base, and two mutually perpendicular first through holes and a second through hole are provided on the top of the pillar, the rack is vertically slidably connected in the first through hole, the gear is rotatably connected in the second through hole via a rotating shaft, the gear meshes with the rack, the bottom of the rack is connected to the pressing head, the gear rotates synchronously with the rotating shaft, and one end of the rotating shaft is connected to the handwheel and rotates synchronously with the handwheel.

[0006] Furthermore, the base below the pressure head is provided with a through groove.

[0007] Furthermore, a mounting hole is provided at the bottom end of the support column corresponding to the top surface of the base, and the support column is detachably connected to the base through the mounting hole and mounting screws.

[0008] Furthermore, a first bushing is connected in the first through hole, and the rack is vertically slidably connected to the first bushing.

[0009] Furthermore, two ends of the second through hole are respectively connected to a second bushing and a third bushing, and two ends of the rotating shaft are respectively rotatably connected to the second bushing and the third bushing.

[0010] Furthermore, the rotating shaft includes a first matching portion, a gear connecting portion, a first limiting portion, a second matching portion, a second limiting portion, a handwheel connecting portion and a third limiting portion, the first matching portion is rotatably connected to the second bushing, the first matching portion is provided with an internal threaded hole, the gear connecting portion and the gear are correspondingly provided with a first key groove, the gear and the rotating shaft are connected through a first key in the first key groove, the first limiting portion is clamped in the second through hole, the second matching portion is rotatably connected to the third bushing, the second limiting portion, the handwheel connecting portion and the third limiting portion are located outside the second through hole, the handwheel connecting portion and the handwheel are correspondingly provided with a second key groove, and the handwheel and the rotating shaft are connected through a second key in the second key groove.

[0011] Furthermore, the third limiting portion is provided with an external thread and is threadedly connected with a hexagonal nut, and a first washer is clamped between the hexagonal nut and the hand wheel.

[0012] Furthermore, the second bushing is connected to a hexagon socket screw through the internal thread of the threaded hole of the first matching portion, and a second washer is clamped between the hexagon socket screw and the second bushing.

[0013] Furthermore, the second limiting portion is provided with an external thread and is threadedly connected with a round nut, and a third washer is clamped between the round nut and the third bushing.

[0014] Furthermore, corresponding threaded holes are provided on the top of the pillar and the second bushing, and the second bushing is detachably connected to the pillar through the corresponding threaded holes and cylindrical head screws.

[0015] Beneficial Effects

[0016] The bearing pressing tool provided by the utility model drives the gear to rotate by turning the hand wheel, and the gear rotation drives the rack to move in the vertical direction. The pressure head at the bottom of the rack is used to press the bearing into the sleeve. The pressing process is smoother and will not damage the bearing. The gear drives the rack transmission, which saves time and effort during operation. The base is provided with a through groove, and the bearing can be pressed out of the sleeve by pressing the pressure head to realize the bearing removal. The utility model is convenient for both installing and removing bearings, and has a simple structure and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a partial structural schematic diagram of a bearing press-fitting tool;

[0018] Figure 2 is another structural schematic diagram of a bearing press-fitting tool;

[0019] Figure 3 yes Figure 1 CC profile in ;

[0020] Figure 4 It is a top view of the pillar;

[0021] Figure 5 It is a schematic diagram of the structure of the rack;

[0022] Figure 6 It is a schematic diagram of the structure of the pressure head;

[0023] Figure 7 It is a schematic diagram of the structure of the gear;

[0024] Figure 8 is a schematic diagram of the structure of the second bushing;

[0025] Fig. 9 yes Figure 8 Bottom view of

[0026] Fig.10 is a schematic diagram of the structure of the third bushing;

[0027] Fig.11 It is a schematic diagram of the structure of the hand wheel;

[0028] Fig.12 It is a structural diagram of the rotating shaft.

[0029] The numbers in the figure represent: 1-pillar, 2-gear, 3-rotating shaft, 301-first matching part, 302-gear connecting part, 3021-first keyway, 303-first limiting part, 304-second matching part, 305-second limiting part, 306-handwheel connecting part, 3061-second keyway, 307-third limiting part, 4-first bushing, 5-rack, 6-handwheel, 7-first washer, 8-hexagonal nut, 9-hexagon socket screw, 10-second washer, 11-second bushing, 12-third washer, 13-round nut, 14-first key, 15-third bushing, 16-second key, 17-cylinder head screw, 18-mounting screw, 19-base, 20-pressure head, 21-first through hole, 22-second through hole. DETAILED DESCRIPTION

[0030] 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 with reference to 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.

[0031] See also Figures 1 to 12 The embodiment of the utility model provides a bearing pressing tool for installing a bearing. The pressing tool includes a base 19, a support 1, a gear 2, a rack 5, a hand wheel 6 and a pressing head 20.

[0032] The pillar 1 is vertically connected to one side of the top surface of the base 19. Two mutually perpendicular first through holes 21 and second through holes 22 are opened on the top of the pillar 1. The first through hole 21 and the second through hole 22 are connected to each other. The rack 5 is vertically slidably connected in the first through hole 21, and the gear 2 is rotatably connected in the second through hole 22 through a rotating shaft 3.

[0033] The top of the support 1 is bent to one side to a horizontal position, and the cross section is an I-shape to ensure structural strength.

[0034] The gear 2 meshes with the rack 5 , the bottom of the rack 5 is connected to the pressure head 20 , the gear 2 rotates synchronously with the rotating shaft 3 , and one end of the rotating shaft 3 is connected to the hand wheel 6 and rotates synchronously with the hand wheel 6 .

[0035] The rack 5 is a cylindrical structure with an external thread at the bottom, and is threadedly connected to the pressure head 20 via the external thread. The pressure head 20 of different specifications can be replaced when necessary.

[0036] A through slot is formed on the base 19 below the pressure head 20 to facilitate the removal of the bearing from the sleeve by pressing down, and the removed bearing falls into the through slot.

[0037] The bottom end of the support 1 is provided with a mounting hole corresponding to the top surface of the base 19 , and the support 1 is detachably connected to the base 19 through the mounting hole and the mounting screws 18 .

[0038] The first bushing 4 is connected in the first through hole 21 , and the rack 5 is vertically slidably connected to the first bushing 4 .

[0039] The second through hole 22 has two ends connected to the second bushing 11 and the third bushing 15 respectively. The second bushing 11, the third bushing 15 and the shaft 3 are rotatably connected to the second bushing 11 and the third bushing 15 respectively. The second bushing 11, the third bushing 15 and the shaft 3 are fitted into the second through hole 22 which matches their shapes.

[0040] The rotating shaft 3 includes a first matching portion 301 , a gear connecting portion 302 , a first limiting portion 303 , a second matching portion 304 , a second limiting portion 305 , a hand wheel connecting portion 306 and a third limiting portion 307 .

[0041] The first matching portion 301 is rotatably connected to the second bushing 11 , and an internal thread hole is formed in the first matching portion 301 .

[0042] The gear connecting portion 302 and the gear 2 are correspondingly provided with a first key groove 3021 , and the gear 2 is transmission-connected to the rotating shaft 3 via the first key 14 in the first key groove 3021 .

[0043] The first limiting portion 303 is clamped in the second through hole 22 , and the second matching portion 304 is rotatably connected to the third bushing 15 .

[0044] The second limiting portion 305 , the handwheel connecting portion 306 and the third limiting portion 307 are located outside the second through hole 22 . The handwheel connecting portion 306 and the handwheel 6 are correspondingly provided with a second key slot 3061 . The handwheel 6 is transmission-connected to the rotating shaft 3 via the second key 16 in the second key slot 3061 .

[0045] The third limiting portion 307 is provided with an external thread and is threadedly connected with a hexagonal nut 8 . A first washer 7 is clamped between the hexagonal nut 8 and the hand wheel 6 .

[0046] The second bushing 11 is connected to the hexagon socket screw 9 through the threaded hole of the first matching portion 301 , and a second washer 10 is sandwiched between the hexagon socket screw 9 and the second bushing 11 .

[0047] The second limiting portion 305 is provided with an external thread and is threadedly connected with a round nut 13 . A third washer 12 is clamped between the round nut 13 and the third bushing 15 .

[0048] Corresponding threaded holes are provided on the top of the pillar 1 and the second bushing 11 , and the second bushing 11 is detachably connected to the pillar 1 through the corresponding threaded holes and cylindrical head screws 17 .

[0049] When the bearing pressing tool provided by the embodiment of the utility model is used, the sleeve is placed on the base 19 and below the pressing head 20, the bearing to be pressed is placed coaxially on the sleeve, the hand wheel 6 is turned, the hand wheel 6 drives the rotating shaft 3 to rotate, the rotating shaft 3 drives the spur gear 2 to rotate, the gear 2 drives the rack 5 to move downward in the vertical direction, and the pressing head 20 presses the bearing into the sleeve. When the bearing needs to be removed, the hand wheel 6 is continued to be turned to make the pressing head 20 continue to press down, the bearing is pressed out of the sleeve and falls into the through groove on the base 19, and the bearing is removed. When removing the bearing, if the diameter of the pressing head 20 and the rack 5 is larger than the inner diameter of the sleeve, a cylinder with a diameter smaller than the inner diameter of the sleeve can be added between the pressing head 20 and the bearing as an aid.

[0050] The above description is only a preferred embodiment of the present invention and is 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 bearing press tool, characterized in that: It comprises a base, a pillar, a gear, a rack, a hand wheel and a pressure head, wherein the pillar is vertically connected to one side of the top surface of the base, the top of the pillar is provided with two mutually perpendicular first through holes and a second through hole, the rack is vertically slidably connected in the first through hole, the gear is rotatably connected in the second through hole through a rotating shaft, the gear meshes with the rack, the bottom of the rack is connected to the pressure head, the gear rotates synchronously with the rotating shaft, and one end of the rotating shaft is connected to the hand wheel and rotates synchronously with the hand wheel; The base below the pressure head is provided with a through slot; The two ends of the second through hole are respectively connected with a second bushing and a third bushing, and the two ends of the rotating shaft are respectively rotatably connected with the second bushing and the third bushing; The rotating shaft includes a first matching portion, a gear connecting portion, a first limiting portion, a second matching portion, a second limiting portion, a handwheel connecting portion and a third limiting portion, the first matching portion is rotatably connected to the second bushing, the first matching portion is provided with an internal threaded hole, the gear connecting portion and the gear are correspondingly provided with a first key groove, the gear and the rotating shaft are connected via a first key in the first key groove, the first limiting portion is clamped in the second through hole, the second matching portion is rotatably connected to the third bushing, the second limiting portion, the handwheel connecting portion and the third limiting portion are located outside the second through hole, the handwheel connecting portion and the handwheel are correspondingly provided with a second key groove, and the handwheel and the rotating shaft are connected via a second key in the second key groove.

2. The bearing press tool according to claim 1, characterized in that: The bottom end of the support column is provided with a mounting hole corresponding to the top surface of the base, and the support column is detachably connected to the base through the mounting hole and mounting screws.

3. The bearing press tool according to claim 1, characterized in that: A first bushing is connected in the first through hole, and the rack is vertically slidably connected to the first bushing.

4. The bearing press tool according to claim 1, characterized in that: The third limiting portion is provided with an external thread and is threadedly connected with a hexagonal nut, and a first washer is clamped between the hexagonal nut and the hand wheel.

5. The bearing press-fitting tool according to claim 1, characterized in that: The second bushing is connected to a hexagon socket screw through the threaded hole of the first matching portion, and a second washer is sandwiched between the hexagon socket screw and the second bushing.

6. The bearing press-fitting tool according to claim 1, characterized in that: The second limiting portion is provided with an external thread and is threadedly connected with a round nut, and a third washer is clamped between the round nut and the third bushing.

7. The bearing press-fitting tool according to claim 1, characterized in that: The top of the pillar and the second bushing are provided with corresponding threaded holes, and the second bushing is detachably connected to the pillar through the corresponding threaded holes and cylindrical head screws.

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