CN210099905U - Crankshaft semi-circle key press-fitting tool and press-fitting station - Google Patents

Abstract

The utility model relates to a bent axle semicircle key pressure equipment instrument and pressure equipment station, pressure equipment instrument is used for with bent axle semicircle key pressure equipment to bent epaxial semicircle key mounting groove in, pressure equipment instrument includes sleeve (1), briquetting (2) and drive arrangement (3), be formed with first recess (11) along axis (A) that is on a parallel with this sleeve (1) on the section of thick bamboo wall of sleeve (1), briquetting (2) rotationally install in this first recess (11), sleeve (1) are used for the cover to establish on the bent axle, drive arrangement (3) are used for the drive briquetting (2) rotate, so that briquetting (2) will bent axle semicircle key pressure equipment is in the semicircle key mounting groove. The pressing block is driven to rotate through the driving device so as to press and mount the semicircular key into the mounting groove, the mounting efficiency is high, and the labor intensity is low.

Description

Crankshaft semi-circle key press-fitting tool and press-fitting station

Technical Field

The utility model relates to a vehicle assembly technical field specifically relates to a bent axle semicircle key pressure equipment instrument and pressure equipment station.

Background

The semi-circular key is often regarded as the part of transmission moment of torsion in the mechanical product, and the semi-circular key adopts interference fit with epaxial keyway under general condition, and this has just brought the trouble for the fitting work of semi-circular key. At present in the big assembling work in batches, all use the hammer to strike the installation, specifically, need two fingers of operator to hold between the fingers and hold the semicircle key, another hand uses the sledgehammer to strike 4-10 back to the semicircle key, and the installation of semicircle key embedding keyway targets in place, brings a great deal of troubles for the semicircle key assembling work: the assembly efficiency is low, the quality is unstable, the labor intensity is large, the noise is large in the key striking process, the keys can fall to the oil bottom from the bridge opening and the cylinder body hoisting hole, and the bridge is required to be disassembled and assembled newly. In addition, the installation process requires that the depth of pressing in the semicircular key is 3.05mm when the hammer strikes the semicircular key, the semicircular key is close to the shaft surface, the shaft surface of the crankshaft is easy to be struck, key scrap falls off, and other problems directly influence the cleanliness of the whole machine.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bent axle semicircle key pressure equipment instrument and pressure equipment station, this pressure equipment instrument assembly efficiency is high, and intensity of labour is little.

In order to realize the above-mentioned purpose, this disclosure provides a bent axle semi-circular key pressure equipment instrument, pressure equipment instrument is used for with bent axle semi-circular key pressure equipment to bent epaxial semi-circular key mounting groove in, pressure equipment instrument includes sleeve, briquetting and drive arrangement, be formed with first recess along being on a parallel with this telescopic axis on the telescopic section of thick bamboo wall, the briquetting is rotationally installed in this first recess, the sleeve is used for the cover to establish on the bent axle, drive arrangement is used for the drive the briquetting rotates, so that the briquetting will bent axle semi-circular key pressure equipment is arrived in the semi-circular key mounting groove.

Optionally, the middle part of the pressing block is hinged to the sleeve through a pin shaft, and the driving device is used for jacking the rear part of the pressing block upwards.

Optionally, the driving device includes a driving handle and a driving rod, the driving rod is slidably disposed through the sleeve, an inclined plane is formed at a front portion of the driving rod, the roller is rotatably mounted at a rear portion of the pressing block and abuts against the inclined plane, and the driving handle is configured to drive the driving rod to move forward along an axis of the sleeve.

Optionally, a second groove is further formed in the sleeve, the driving handle includes a movable handle and a fixed handle, the movable handle is rotatably mounted on the sleeve, the fixed handle is fixed on the sleeve, the movable handle is formed into an L-shaped structure and includes a short handle portion and a long handle portion, the long handle portion is arranged opposite to the fixed handle, and the short handle portion penetrates through the second groove and abuts against the driving rod to drive the driving rod to move.

Optionally, the sleeve is provided with mounting lugs, the second groove is located between the mounting lugs, and one end of the short handle part far away from the driving rod is hinged with the mounting lugs and extends backwards to form the long handle part.

Optionally, the long handle extends rearwardly from the short handle and is upwardly turned.

Optionally, the drive rod is formed with a recess in which an end of the short shank portion adjacent to the drive rod is received.

Optionally, a guide groove is formed on the driving rod along a direction parallel to the axis, a guide projection is formed on the sleeve, and the guide groove is in sliding fit with the guide projection.

Optionally, the press fitting tool further comprises an elastic return ring, the elastic return ring is used for driving the rear portion of the pressing block to move downwards, a first return groove is formed in the pressing block, the first return groove is located between the pin shaft and the roller, a second return groove is formed in the outer wall of the sleeve, and the elastic return ring is sleeved outside the sleeve and located in the first return groove and the second return groove.

The utility model also provides a bent axle semicircle key pressure equipment station, the pressure equipment station include the upper guideway and the pressure equipment instrument, the pressure equipment instrument hangs on the upper guideway.

The beneficial effect of this disclosure:

the crankshaft semi-circular key press fitting tool disclosed by the invention drives the pressing block to rotate through the driving device so as to press fit the semi-circular key into the mounting groove, the mounting efficiency is high, and the labor intensity is low.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic structural view of a crankshaft woodruff key press-fitting tool according to an alternative embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of a crankshaft woodruff key press-fitting tool according to an alternative embodiment of the present disclosure;

FIG. 3 is a schematic view of a drive rod of an alternative embodiment of the crankshaft woodruff key press-fitting tool of the present disclosure;

fig. 4 is a schematic structural diagram of a pressing block of a crankshaft semi-circular key press-fitting tool according to an alternative embodiment of the disclosure.

Description of the reference numerals

1 sleeve and 2 pressing blocks

3 drive device 10 pin shaft

11 first groove 12 second groove

13 second return groove 21 roller

22 first return groove 31 drive stem

32 drive rod 311 moving handle

312 fixed handle 3110 short handle

3111 Long shank 313 mounting lug

322 groove 323 guide groove

4 first hinge hole 5 second hinge hole

6 roller mounting groove 321 inclined plane

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise stated, the use of the directional terms such as "up, down, front and back" generally means up, down, front and back defined when the tool for pressing a woodruff key of a crankshaft is in use, specifically, the direction close to the crankshaft is defined as front and the direction away from the crankshaft is defined as back; furthermore, terms such as "first," "second," and the like, are used herein to distinguish one element from another, and are not necessarily sequential or significant.

As shown in fig. 1 to 4, the present disclosure provides a press-fitting tool for a crankshaft woodruff key, which is used for press-fitting the crankshaft woodruff key into a woodruff key mounting groove on a crankshaft, wherein the woodruff key is mounted in the mounting groove of a timing gear end of the crankshaft in an interference fit manner to be fixedly connected with a sprocket, so as to achieve the effect of transmitting torque; the press fitting tool can comprise a sleeve 1, a pressing block 2 and a driving device 3, a first groove 11 can be formed on the wall of the sleeve 1 along an axis A parallel to the sleeve 1 for installing the pressing block 2, the pressing block 2 can be rotatably installed in the first groove 11, and the sleeve 1 is used for being sleeved on a crankshaft.

When specifically carrying out the installation of bent axle semicircle key, can place the bent axle semicircle key in the mounting groove earlier, and then establish the front end cover of sleeve 1 at the timing gear end of bent axle, make briquetting 2 arrange the top of this bent axle semicircle key in, and this bent axle semicircle key is planar upper surface and can be relative with this briquetting 2, this briquetting 2 can be followed the length direction extension of this bent axle semicircle key in addition, 3 drive briquetting 2 rotations of drive arrangement, so that briquetting 2 and this bent axle semicircle key butt and with its pressure equipment to the semicircle key mounting groove in, the installation effectiveness is high, low in labor strength.

In addition, when sleeve 1 cover establish to the timing gear end back of bent axle, even the bent axle half key drops from the mounting groove, sleeve 1 also can play the effect of accepting the bent axle half key that drops, avoids from bridge mouth, cylinder body hoisting hole, falls to the oil bottom, and then still need follow new dismouting bridge.

Specifically, as shown in fig. 2, the middle of the pressing block 2 may be hinged to the sleeve 1 through a pin 10, first hinge holes 4 may be formed on both sides of the width of the first groove 11, a second hinge hole 5 may be formed in the middle of the pressing block 2, the pin 10 penetrates through the first hinge holes 4 and the second hinge holes 5 to rotatably set the pressing block 2 in the first groove 11 extending along the axis a direction, the front portion of the pressing block 2 is disposed above the semi-circular key of the crankshaft, and the driving device 3 may be configured to jack up the rear portion of the pressing block 2 upward. After the rear part of the pressing block 2 moves upwards, the front part of the pressing block 2 moves downwards to press the crankshaft semi-circular key arranged below the pressing block into the mounting groove, so that the operation is simple, the labor intensity is low, and the efficiency is high. In addition, the pressing block 2 is not limited to be hinged to the sleeve 1 at the middle part, and may be hinged to the sleeve 1 at the front part or at the rear part, for example, when the rear part of the pressing block 2 is hinged to the sleeve 1, the front part of the pressing block 2 is opposite to the crankshaft woodruff key, and at this time, the driving device 3 may be disposed above the front part of the pressing block 2 to drive the front part of the pressing block 2 to move downwards so as to press-fit the crankshaft woodruff key into the mounting groove.

More specifically, in one embodiment provided by the present disclosure, the driving device 3 may include a driving lever 31 and a driving lever 32, the driving lever 32 is slidably disposed through the sleeve 1, a slope 321 is formed at a front portion of the driving lever 32, a roller 21 is rotatably mounted at a rear portion of the pressing block 2 and abuts against the slope 321, the driving lever 31 is configured to drive the driving lever 32 to move forward along the axis a of the sleeve 1, optionally, a roller mounting groove 6 penetrating in an up-down direction is formed at a rear portion of the pressing block 2, the roller 21 is rotatably mounted in the roller mounting groove 6, a slope 321 extending downward is formed at a front portion of the driving lever 32, the roller 21 abuts against the slope 321, when the driving lever 31 moves the driving lever 32 forward along the axis a of the sleeve 1, the roller 21 gradually moves upward along the slope 321 to drive the rear portion of the pressing block 2 to move upward, and the front portion of the pressing block 2 moves downward to press the crankshaft semicircular key disposed therebelow to be press-mounted, simple structure and convenient operation. In other embodiments, the driving device 3 may be driven by a linear motor, a hydraulic cylinder, or the like.

In addition, as shown in fig. 1 and 2, the sleeve 1 is further formed with a second groove 12, the driving handle 31 may include a movable handle 311 and a fixed handle 312, the movable handle 311 is rotatably mounted on the sleeve 1, the fixed handle 312 may be fixed on the sleeve 1 by welding, the movable handle 311 may be formed in an L-shaped structure and include a short handle portion 3110 and a long handle portion 3111, the long handle portion 3111 is disposed opposite to the fixed handle 312, and the short handle portion 3110 may pass through the second groove 12 and abut against the driving rod 32 to move the driving rod 32 forward. In operation, four fingers of one hand can be held on the fixed handle 312 and the thumb on the long handle portion 3111, and the distance between the fixed handle 312 and the long handle portion 3111 is reduced by the force of the hand, so that the movable handle 311 rotates and moves the short handle portion 3110 forward to drive the driving rod 32 in contact therewith to move forward. Alternatively, the second groove 12 may be coaxial with the first groove 11 and disposed at the rear portion thereof, that is, the movable handle 311 and the pressing block 2 are located on the same side of the sleeve 1, or the second groove 12 may also be not located on the same side of the sleeve 1 as the first groove 11, that is, the movable handle 311 and the pressing block 2 are located on two opposite sides of the sleeve 1, and both arrangements may implement that the driving handle 31 moves the driving rod 32 forward, which is not limited by the disclosure.

Further, as shown in fig. 1, mounting lugs 313 may be welded to the sleeve 1, and the second groove 12 may be located between the mounting lugs 313, one end of the short handle portion 3110 away from the driving lever 32 (i.e., an inflection point of the L-shaped moving handle 311) is hinged to the mounting lugs 313 through a connecting shaft and extends backward to form a long handle portion 3111, and the fixed handle 312 and the long handle portion 3111 are held by hands and the moving handle 311 is rotated around the connecting shaft, so that the short handle portion 3110 is rotated forward around the connecting shaft to move the driving lever 32 abutted thereto forward. As an alternative embodiment, a return spring may be sleeved on the connecting shaft, so that the movable handle 311 can be automatically returned, and the operation is convenient.

Further, the long handle portion 3111 extends backward from the short handle portion 3110 and is bent upward, a rubber sleeve may be sleeved on the long handle portion 3111 and the fixed handle 312 to facilitate holding of the hand, the long handle portion 3111 may be set to an arc structure to facilitate holding of the hand, and the upward bending may increase a distance between the long handle portion 3111 and the fixed handle 312, so as to increase a rotation stroke of the movable handle 311, that is, a distance that the driving lever 32 moves forward, and improve operability of the press-fitting tool.

As an alternative embodiment, as shown in fig. 3, a groove 322 may be formed on the driving rod 32, one end of the short handle portion 3110 close to the driving rod 32 is accommodated in the groove 322, the short handle portion 3110 abuts against the inner wall of the front side of the groove 322, so that when the short handle portion 3110 rotates forwards, the driving rod 32 may be pushed to rotate forwards, the groove 322 is used for accommodating the short handle portion 3110 and plays a certain clamping role, so that the connection between the structures is more compact, and the situation of shaking and the like may not occur.

As shown in fig. 3, a guide groove 323 can be formed on the driving rod 32 along the direction parallel to the axis a, a guide convex block is formed on the sleeve 1, and the guide groove 323 is in sliding fit with the guide convex block, so that the driving rod 32 does not shake or shake in the forward movement process of the sleeve 1, and the driving rod 32 can be ensured to move forward stably, and the pressing block 2 can be used for pressing the crankshaft semi-circular key into the mounting groove stably. Alternatively, the guide protrusion may be formed as a jackscrew to be slidably engaged with the guide groove 323, but the present disclosure does not limit the specific structure of the guide protrusion, and other guide structures may be used to be engaged with the guide groove 323.

As an optional implementation manner, the press-fitting tool may further include an elastic return ring, the elastic return ring is configured to drive the rear portion of the press block 2 to move downward, a first return groove 22 is formed on the press block 2, the first return groove 22 is located between the pin shaft 10 and the roller 21, a second return groove 13 is formed on the outer wall of the sleeve 1, the elastic return ring is sleeved outside the sleeve 1 and located in the first return groove 22 and the second return groove 13, after the front portion of the press block 2 moves downward and presses the crankshaft semi-circular key into the mounting groove, the elastic return ring may move the rear portion of the press block 2 downward under the effect of elastic force, so as to restore the press block 2 to an initial state, the elastic return ring may select a waste oil-sealed spring, and improve the utilization rate of components.

In the aspect of material selection, a T10A round bar can be selected as the material of the sleeve 1, the driving rod 32, the pressing block 2 and the roller 21, and the driving handle 31 can be made of a steel plate, so that the structure strength is high and the stability is strong.

The utility model also provides a bent axle semicircle key pressure equipment station, this pressure equipment station include the upper guideway and foretell pressure equipment instrument, and pressure equipment instrument can hang on the upper guideway through the equalizer, avoids the operator to relapse this pressure equipment instrument, improves work efficiency.

In conclusion, through this disclosed bent axle semicircle key pressure equipment instrument can realize following effect:

1. after the semicircular key is placed in the groove during assembly, the semicircular key is pressed in at one time without repeated knocking adjustment and the like, the assembly efficiency is high, the operation time of the original pressing key is saved from 18 seconds to 10 seconds, the average operation time of the whole procedure is directly saved by 18 seconds for 16 seconds, the production loss caused by knocking, gouging, maintenance and the like is reduced, the production efficiency is improved, and the operation rate is ensured.

2. The assembly quality is stable and good, the semi-circle key position is accurate during assembly, all surfaces are not easy to damage, and the assembly result of each piece is basically consistent.

3. The tool has the advantages of compact and simple structure, light weight and convenient operation, and reduces the labor intensity of workers.

4. The working environment of the staff is improved, and the occupational health of the staff is ensured. The noise in the production shop does not exceed the limit.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. The utility model provides a bent axle semicircle key pressure equipment instrument, pressure equipment instrument is used for with bent axle semicircle key pressure equipment to bent epaxial semicircle key mounting groove in, a serial communication port, pressure equipment instrument includes sleeve (1), briquetting (2) and drive arrangement (3), be formed with first recess (11) along axis (A) that is on a parallel with this sleeve (1) on the section of thick bamboo wall of sleeve (1), briquetting (2) rotationally install in this first recess (11), sleeve (1) are used for the cover to establish on the bent axle, drive arrangement (3) are used for the drive briquetting (2) rotate, so that briquetting (2) will bent axle semicircle key pressure equipment is arrived in the semicircle key mounting groove.

2. The press fitting tool for the crankshaft semi-circular key as claimed in claim 1, wherein the middle part of the pressing block (2) is hinged with the sleeve (1) through a pin shaft (10), and the driving device (3) is used for jacking the rear part of the pressing block (2) upwards.

3. The tool for press fitting of the crankshaft woodruff key according to claim 2, wherein the driving device (3) comprises a driving handle (31) and a driving rod (32), the driving rod (32) is slidably arranged through the sleeve (1), a slope (321) is formed at the front part of the driving rod (32), a roller (21) is rotatably arranged at the rear part of the pressing block (2) and is abutted against the slope (321), and the driving handle (31) is used for driving the driving rod (32) to move forwards along the axis (A) of the sleeve (1).

4. The tool for press-fitting a crankshaft woodruff key according to claim 3, wherein the sleeve (1) further has a second groove (12) formed thereon, the driving handle (31) comprises a movable handle (311) and a fixed handle (312), the movable handle (311) is rotatably mounted on the sleeve (1), the fixed handle is fixed on the sleeve (1), the movable handle (311) is formed into an L-shaped structure and comprises a short handle part (3110) and a long handle part (3111), the long handle part (3111) is arranged opposite to the fixed handle (312), and the short handle part (3110) passes through the second groove (12) and abuts against the driving rod (32) to drive the driving rod (32) to move.

5. The tool according to claim 4, wherein the sleeve (1) is provided with mounting lugs (313), the second groove (12) is located between the mounting lugs (313), and one end of the short shank (3110) remote from the driving rod (32) is hinged to the mounting lugs (313) and extends rearward to form the long shank (3111).

6. The crankshaft woodruff key press-fitting tool according to claim 4 or 5, wherein the long shank portion (3111) extends rearward from the short shank portion (3110) and is turned upward.

7. The crankshaft woodruff key press-fitting tool according to claim 4, wherein the drive lever (32) is formed with a recess (322), and an end of the short shank portion (3110) near the drive lever (32) is received in the recess (322).

8. A tool for press-fitting a crankshaft woodruff key according to claim 3, wherein the driving rod (32) is formed with a guide groove (323) in a direction parallel to the axis (a), and the sleeve (1) is formed with a guide projection, and the guide groove (323) is slidably fitted with the guide projection.

9. The crankshaft woodruff key press-fitting tool according to claim 3, characterized in that, the press-fitting tool further comprises an elastic return ring, the elastic return ring is used for driving the rear part of the press block (2) to move downwards, a first return groove (22) is formed on the press block (2), the first return groove (22) is located between the pin shaft (10) and the roller (21), a second return groove (13) is formed on the outer wall of the sleeve (1), and the elastic return ring is sleeved outside the sleeve (1) and located in the first return groove (22) and the second return groove (13).

10. A press fitting station for a crankshaft woodruff key, the press fitting station comprising an upper rail and a press fitting tool according to any one of claims 1 to 9, the press fitting tool being suspended from the upper rail.

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