CN218313013U - Crankshaft maintenance tool - Google Patents

Abstract

The application discloses frock is overhauld to bent axle belongs to the field that the bent axle overhauld, and it includes the base, slides on the base and installs the support frame, and the support frame on the base is two sets of at least, and the symmetry is provided with two curb plates on the support frame, rotates between two curb plates to be provided with a pair of supporting wheel that is used for supporting the bent axle. This application has and makes the staff when overhauing the bent axle, is convenient for carry out pivoted effect to the bent axle.

Description

Crankshaft maintenance tool

Technical Field

The application relates to the field of crankshaft overhaul, in particular to a crankshaft overhaul tool.

Background

The crankshaft is the most important component in the engine. It takes the force from the connecting rod and converts it into torque to be output by the crankshaft and drive other accessories on the engine. The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, gas inertia force of periodic variation and reciprocating inertia force, so that the crankshaft is subjected to the action of bending and twisting load. Therefore, the crankshaft is required to have sufficient strength and rigidity, and the surface of the journal needs to be wear-resistant, work uniformly and balance well.

The Chinese patent with the publication number of CN213088483U discloses a high-balance crankshaft for a truck engine, which comprises an outer coupling, a fixed end shaft, an outer shaft disc, an inner connecting rod, a right-end fixed shaft, an outer disc curved surface, an inner disc curved surface and a short disc curved surface, wherein the right-side end of the outer coupling is connected with the fixed end shaft, the right side of the fixed end shaft is fixed with the outer shaft disc, the right surface of the outer shaft disc is connected with an outer shaft disc rod, the right-side end of the outer shaft disc rod is provided with a connecting shaft rod, the right side surface of the inner shaft disc is connected with an inner shaft disc rod, the right end of the inner shaft disc rod is provided with the inner connecting rod, the rightmost end of the inner connecting rod is connected with the right-end fixed shaft, the front side surface of the outer shaft disc is provided with the outer disc curved surface, the front side surface of the inner shaft disc is provided with the inner disc curved surface, and the front side surface of the short disc curved surface is fixed with the short disc curved surface.

Among the correlation technique, the bent axle needs to overhaul the bent axle after long-term the use, need detect when overhauing and restore external shaft coupling, connecting shaft pole, places the bent axle on the sleeper usually and overhauls, and the bent axle is placed and is not convenient for rotate the bent axle on the sleeper to be not convenient for carry out the comprehensive inspection to the bent axle.

SUMMERY OF THE UTILITY MODEL

In order to improve the pivoted problem of not being convenient for when the bent axle overhauls, this application provides a frock is overhauld to bent axle.

The application provides a crankshaft overhaul tool adopts following technical scheme:

the utility model provides a frock is overhauld to bent axle, includes the base, it installs the support frame to slide on the base, on the base the support frame is two sets of at least, the symmetry is provided with two curb plates on the support frame, two it is provided with a pair of supporting wheel that is used for supporting the bent axle to rotate between the curb plate.

Through adopting above-mentioned technical scheme, the bent axle that will overhaul is placed on the support frame, makes the axle journal of bent axle and the outer peripheral face looks butt of supporting wheel, rotates the bent axle, and the bent axle drives the supporting wheel and rotates to reduce the frictional force between bent axle and the supporting wheel, be convenient for rotate the bent axle and overhaul the bent axle.

Preferably, the base includes two slide bars, two slide bar parallel arrangement, the top surface of slide bar is seted up flutedly, the support frame includes the bracing piece of two vertical settings, two the bottom of bracing piece is inserted respectively and is established two in the recess, two fixedly connected with connecting rod between the bracing piece, two the bottom surface of curb plate with the top surface fixed connection of connecting rod, two the bottom surface of bracing piece all is fixed with the rectangle strip, the rectangle strip passes through the recess is followed the length direction of slide bar with slide bar slides and is connected, the spout has been seted up to the side of recess, the spout is followed the length direction of slide bar sets up, the side of rectangle strip is fixed with the draw runner, the draw runner passes through the spout is followed the length direction of slide bar with slide bar slides and connects.

Through adopting above-mentioned technical scheme, slide the bracing piece with the pole that slides and be connected, to not unidimensional bent axle, remove the bracing piece, adjust the distance between the adjacent bracing piece, make the supporting wheel be located the axle journal below of bent axle, place the axle journal of bent axle on the supporting wheel to be convenient for support not unidimensional bent axle.

Preferably, a reinforcing rib is obliquely fixed between the connecting rod and the supporting rod.

Through adopting above-mentioned technical scheme, be connected with the strengthening rib between connecting rod and bracing piece, improve the stability of bracing piece to make the bent axle place on the supporting wheel, make the support of bracing piece more stable.

Preferably, two through holes are formed in the side faces, close to each other, of the two side plates, the axes of the two through holes are located on the same horizontal plane, each supporting wheel comprises a pulley and a rotating shaft, the rotating shafts are rotatably connected with the pulleys, two ends of each rotating shaft penetrate through the through holes in the same side of the two side plates respectively, a fixing assembly for limiting rotation of each rotating shaft is arranged on each side plate, each fixing assembly comprises two cylindrical barrels fixed on the outer side faces of the two side plates, the axes of the cylindrical barrels are collinear with the axes of the through holes, a clamping groove is formed in the outer peripheral face of each rotating shaft, a square groove is formed in the inner peripheral face of each cylindrical barrel, a clamping block is installed in the square groove in a sliding mode along the vertical direction, one side of the clamping block can be inserted into the clamping groove, a round hole is formed in the inner top face of the square groove, a round rod is inserted into the round hole, and one end, close to the rotating shaft, of the round rod is connected with the clamping block.

By adopting the technical scheme, the rotating shaft penetrates through the through holes on the same sides of the two side plates, the rotating shaft is rotated, the clamping grooves in the rotating shaft are aligned with the square grooves in the inner circumferential surface of the cylindrical barrel, the cylindrical rod moves towards the direction close to the rotating shaft, and the clamping blocks are inserted in the clamping grooves, so that the possibility of rotation of the rotating shaft is reduced; when the pulley needs to be detached and replaced, the fixture block moves towards the direction far away from the rotating shaft, so that the fixture block is separated from the clamping groove and moves into the square groove, the rotating shaft moves towards the direction far away from the pulley, the rotating shaft is separated from the pulley, and the pulley is convenient to detach and replace.

Preferably, a limiting groove is formed in the side face of the groove, a limiting block is fixed to the side face of the clamping block, and the limiting block is connected with the cylindrical barrel in a sliding mode along the radial direction of the cylindrical barrel through the limiting groove.

Through adopting above-mentioned technical scheme, when the fixture block was followed the radial movement of a cylinder section of thick bamboo, the stopper passed through the radial movement of spacing groove along a cylinder section of thick bamboo to reduce the possibility that the fixture block breaks away from a cylinder section of thick bamboo.

Preferably, the side that the axis of rotation was kept away from to the stopper is fixed with the spring, the spring keep away from the axis of rotation one end with the spacing groove is kept away from the side fixed connection of axis of rotation.

Through adopting above-mentioned technical scheme, move the round bar orientation away from the direction of axis of rotation, the spring is in compression state, passes the axis of rotation two curb plates with the through-hole of one side, rotates the axis of rotation and makes the square groove on the cylinder section of thick bamboo inner peripheral surface of alignment of last draw-in groove of rotating, unclamps the round bar, and the fixture block moves to the draw-in groove under the spring action of spring in to it is more firm to make the connection between axis of rotation and the cylinder section of thick bamboo.

Preferably, one end of the round rod close to the rotating shaft is rotatably connected with the clamping block, a through groove is formed in the inner circumferential surface of the round hole, a square block is fixed on the outer circumferential surface of the round rod, and the square block is connected with the cylindrical barrel through the through groove in a sliding mode in the vertical direction.

Through adopting above-mentioned technical scheme, move the direction of axis of rotation with the round bar orientation, the fixture block moves to the square inslot, and the square passes logical groove, rotates the round bar and unclamps, and the side that the square is close to the fixture block is to the butt with the peripheral face of a cylinder section of thick bamboo to the restriction fixture block orientation is close to the direction removal of axis of rotation.

Preferably, two horizontal poles are fixed between the sliding poles, two mounting grooves are formed in the bottom surfaces of the horizontal poles, vertically-arranged screw rods penetrate through the inner top surfaces of the mounting grooves, cylindrical poles are fixed at the top ends of the screw rods, and universal wheels are fixed at the bottom ends of the screw rods.

Through adopting above-mentioned technical scheme, rotate the screw rod, make the screw rod move down, the screw rod promotes the universal wheel and moves down, and the outer peripheral face and the ground of universal wheel continue to rotate the screw rod to the butt, make base rebound, base and ground phase separation to be convenient for remove the bent axle and overhaul the device.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the crankshaft to be overhauled is placed on the support frame, the shaft neck of the crankshaft is abutted to the outer peripheral surface of the support wheel, the crankshaft is rotated, and the crankshaft drives the support wheel to rotate, so that the friction force between the crankshaft and the support wheel is reduced, and the crankshaft is convenient to rotate to overhaul;

2. the support rods are connected with the sliding rods in a sliding mode, the support rods are moved for crankshafts with different sizes, the distance between every two adjacent support rods is adjusted, the support wheels are located below the shaft necks of the crankshafts, and the shaft necks of the crankshafts are placed on the support wheels, so that the crankshafts with different sizes can be supported conveniently;

3. the reinforcing ribs are connected between the connecting rods and the supporting rods, so that the stability of the supporting rods is improved, the crankshafts are placed on the supporting wheels, and the supporting of the supporting rods is more stable.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a cross-sectional view of a slide bar in an embodiment of the present application.

Fig. 3 is a cross-sectional view of a cross-bar in an embodiment of the present application.

Fig. 4 is a sectional view of a cylindrical drum in the embodiment of the present application.

Fig. 5 is an enlarged schematic view at a in fig. 4.

Reference numerals: 1. a base; 11. a cross bar; 12. a slide bar; 13. a groove; 14. a chute; 15. mounting grooves; 16. a screw; 17. a cylindrical rod; 18. a universal wheel; 2. a support frame; 21. a support bar; 22. a connecting rod; 23. reinforcing ribs; 24. a rectangular strip; 25. a slide bar; 3. a support wheel; 31. a pulley; 32. a rotating shaft; 33. a card slot; 4. a side plate; 41. a through hole; 42. a cylindrical barrel; 43. a square groove; 44. a circular hole; 45. a through groove; 5. a clamping block; 51. a round bar; 52. a limiting groove; 53. a limiting block; 54. a square block; 55. a spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses frock is overhauld to bent axle.

Referring to fig. 1, the crankshaft overhaul tool comprises a base 1 and three groups of support frames 2 which are arranged on the base 1 in a sliding mode, two parallel side plates 4 are fixed on the support frames 2, and two groups of support wheels 3 are rotatably arranged between the two side plates 4. Base 1 is including two horizontal poles 11 and two poles of sliding 12 of fixed connection in proper order, and two horizontal poles 11 parallel arrangement each other, two poles of sliding 12 parallel arrangement each other. The support frame 2 comprises a connecting rod 22 and two vertically arranged support rods 21, the connecting rod 22 is fixedly connected between the two support rods 21, the top surface of the connecting rod 22 is coplanar with the top surfaces of the support rods 21, reinforcing ribs 23 are obliquely fixed on the bottom surface of the connecting rod 22 and the opposite inner side surfaces of the two support rods 21, and the bottom surfaces of the two side plates 4 are fixedly connected with the top surfaces of the connecting rod 22.

Referring to fig. 2, grooves 13 are formed in the top surfaces of the two sliding rods 12, the bottom ends of the two support rods 21 are respectively inserted into the two grooves 13, and the support rods 21 are slidably connected with the sliding rods 12 along the length direction of the sliding rods 12 through the grooves 13. The opposite inner sides of the grooves 13 are provided with sliding grooves 14, the sliding grooves 14 are arranged along the length direction of the sliding rod 12, and the inner bottom surfaces of the sliding grooves 14 are coplanar with the bottom surfaces of the grooves 13. A rectangular strip 24 is fixed on the bottom surface of the support rod 21, sliding strips 25 are fixed on both sides of the rectangular strip 24, and the sliding strips 25 are connected with the sliding rod 12 in a sliding manner along the length direction of the sliding rod 12 through the sliding grooves 14.

The distance between the shaft journals of the crankshafts is different for crankshafts with different sizes, and the distance between the adjacent support rods 21 is adjusted by moving the support rods 21, so that the crankshafts with different sizes are supported.

Referring to fig. 3, both sides of the bottom surface of the cross bar 11 are provided with mounting grooves 15, a screw 16 penetrates through the inner top surface of each mounting groove 15, the screw 16 is in spiral transmission fit with the cross bar 11, a cylindrical rod 17 is fixed at the top end of the screw 16, and a universal wheel 18 is fixed on the bottom surface of the screw 16.

When the staff need examine and repair the frock with the bent axle and remove to other work places, rotate screw rod 16, screw rod 16 moves down, drives universal wheel 18 and moves down, makes the outer peripheral face of universal wheel 18 and ground looks butt, continues to rotate screw rod 16, makes base 1 upwards move and with ground phase separation to be convenient for remove bent axle and examine and repair the frock.

Referring to fig. 4, two through holes 41 are formed in the side surfaces of the two side plates 4 away from each other, and the central axes of the two through holes 41 on each side plate 4 are parallel to each other and are located on the same horizontal plane. Two cylindrical cylinders 42 are fixed on the side surfaces of the two side plates 4 which are far away from each other, and the central axes of the cylindrical cylinders 42 are collinear with the central axis of the through hole 41. The supporting wheel 3 comprises a rotating shaft 32 and a pulley 31 penetrating the outer peripheral surface of the rotating shaft 32, the pulley 31 is rotatably connected with the rotating shaft 32, and two ends of the rotating shaft 32 respectively penetrate through the through holes 41 on the same side of the two side plates 4.

Referring to fig. 5, two locking grooves 33 are formed on the outer circumferential surface of the rotating shaft 32, and the two locking grooves 33 are disposed at both ends of the rotating shaft 32 along the axial direction of the rotating shaft 32. The inner peripheral surface of cylinder 42 has seted up square groove 43, is provided with fixture block 5 in the square groove 43, and fixture block 5 slides through square groove 43 along vertical and cylinder 42 and is connected, and fixture block 5 can insert and establish in draw-in groove 33. Round hole 44 has been seted up to the interior top surface of square groove 43, and the top surface of fixture block 5 rotates and is connected with the round bar 51 of vertical setting, and round bar 51's top passes round hole 44, and round bar 51 slides through round hole 44 along vertical and cylindrical barrel 42 and is connected. The inner peripheral surface of the round hole 44 is provided with a through groove 45, and the outer peripheral surface of the round rod 51 is fixed with a block 54 which can pass through the through groove 45. Both sides of the clamping block 5 are fixed with limiting blocks 53, the relative inner sides of the square grooves 43 are provided with limiting grooves 52, and the limiting blocks 53 are connected with the cylindrical barrel 42 in a sliding manner along the vertical direction through the limiting grooves 52. The side of the limiting block 53 far away from the rotating shaft 32 is fixed with a spring 55, and one end of the spring 55 far away from the rotating shaft 32 is fixedly connected with the side of the limiting groove 52 far away from the rotating shaft 32.

The rotation shaft 32 is rotated to align the catching groove 33 of the rotation shaft 32 with the square groove 43 of the cylindrical barrel 42, and the catching block 5 is inserted into the catching groove 33 by the elastic force of the spring 55, thereby restricting the rotation of the rotation shaft 32. When the pulley 31 needs to be replaced, the worker moves the round rod 51 upward, the round rod 51 drives the fixture block 5 to be separated from the clamping groove 33 and move into the groove 13, the round rod 51 is rotated and loosened, the bottom surface of the block 54 is abutted to the outer peripheral surface of the cylindrical barrel 42, the fixture block 5 is limited to move downward, the rotating shaft 32 is pulled out in a direction away from the side plate 4, the rotating shaft 32 is separated from the pulley 31, and the pulley 31 is detached from the side plate 4 to be replaced.

The implementation principle of this application embodiment crankshaft overhaul tool is: the crankshaft to be overhauled is placed on the crankshaft overhauling tool, the outer peripheral surface of the shaft neck of the crankshaft is abutted to the outer peripheral surfaces of the two pulleys 31, and when the crankshaft is rotated by workers, the crankshaft drives the pulleys 31 to rotate, so that the friction force between the crankshaft and the pulleys 31 is reduced, the workers can rotate the crankshaft conveniently, and the crankshaft is overhauled.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a frock is overhauld to bent axle which characterized in that: including base (1), slide on base (1) and install support frame (2), on base (1) support frame (2) are two sets of at least, the symmetry is provided with two curb plates (4) on support frame (2), two it is provided with a pair of supporting wheel (3) that are used for supporting the bent axle to rotate between curb plate (4).

2. The crankshaft repair tooling of claim 1, wherein: base (1) includes two slide bar (12), two slide bar (12) parallel arrangement, the top surface of slide bar (12) is seted up flutedly (13), support frame (2) are including bracing piece (21) of two vertical settings, two the bottom of bracing piece (21) is inserted respectively and is established two in recess (13), two fixedly connected with connecting rod (22), two between bracing piece (21) the bottom surface of curb plate (4) with the top surface fixed connection of connecting rod (22), two the bottom surface of bracing piece (21) all is fixed with rectangle strip (24), rectangle strip (24) are passed through recess (13) are followed the length direction of slide bar (12) with slide bar (12) slide and connect, spout (14) have been seted up to the side of recess (13), spout (14) are followed the length direction of slide bar (12) sets up, the side of rectangle strip (24) is fixed with draw runner (25), draw runner (25) pass through spout (14) are followed slide bar (12) the length direction with slide bar (12) connect.

3. The crankshaft overhauling tooling as set forth in claim 2, wherein: and a reinforcing rib (23) is obliquely fixed between the connecting rod (22) and the supporting rod (21).

4. The crankshaft repair tooling of claim 2, wherein: the supporting wheel (3) comprises a pulley (31) and a rotating shaft (32), the rotating shaft (32) is rotatably connected with the pulley (31), two ends of the rotating shaft (32) respectively penetrate through the through holes (41) on the same side of the two side plates (4), a fixing assembly for limiting the rotating shaft (32) to rotate is arranged on each side plate (4), the fixing assembly comprises two cylindrical barrels (42) fixed on the opposite outer side surfaces of the two side plates (4), the axis of each cylindrical barrel (42) and the axis of each through hole (41) are respectively arranged, a clamping groove (33) is formed in the outer peripheral surface of the rotating shaft (32), a square groove (43) is formed in the inner peripheral surface of each cylindrical barrel (42), a clamping block (5) is vertically slidably arranged in each square groove (43), one side of each clamping block (5) can be inserted into each clamping groove (33), a round hole (44) is formed in the inner top surface of each square groove (43), a round inserting hole (44) is formed in each rotating shaft (44), and one end of each clamping block (5) close to each round rod (51) is connected with the corresponding round rod (51).

5. The crankshaft overhauling tooling as set forth in claim 4, wherein: a limiting groove (52) is formed in the side face of the groove (13), a limiting block (53) is fixed to the side face of the clamping block (5), and the limiting block (53) is connected with the cylindrical barrel (42) in a sliding mode along the radial direction of the cylindrical barrel (42) through the limiting groove (52).

6. The crankshaft repair tooling according to claim 5, wherein: the side face, far away from the rotating shaft (32), of the limiting block (53) is fixed with a spring (55), one end, far away from the rotating shaft (32), of the spring (55) is fixedly connected with the side face, far away from the rotating shaft (32), of the limiting groove (52).

7. The crankshaft repair tooling according to claim 4, wherein: one end, close to the rotating shaft (32), of the round rod (51) is rotatably connected with the clamping block (5), a through groove (45) is formed in the inner circumferential surface of the round hole (44), a square block (54) is fixed on the outer circumferential surface of the round rod (51), and the square block (54) is connected with the cylindrical barrel (42) in a sliding mode in the vertical direction through the through groove (45).

8. The crankshaft overhauling tooling as set forth in claim 2, wherein: two cross rods (11) are fixed between the two sliding rods (12), two mounting grooves (15) are formed in the bottom surfaces of the cross rods (11), vertically-arranged screw rods (16) penetrate through the inner top surfaces of the mounting grooves (15), cylindrical rods (17) are fixed to the top ends of the screw rods (16), and universal wheels (18) are fixed to the bottom ends of the screw rods (16).

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