CN215766851U

CN215766851U - Crankshaft crank neck parallelism detection device

Info

Publication number: CN215766851U
Application number: CN202122065344.9U
Authority: CN
Inventors: 杨晶
Original assignee: Tianjin Linkstrong Technology Development Co ltd
Current assignee: Tianjin Linkstrong Technology Development Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-02-08
Anticipated expiration: 2031-08-30

Abstract

The utility model belongs to the technical field of crankshaft precision detection equipment, in particular to a crankshaft crank parallelism detection device, aiming at the problems that the parallelism of the crankshaft crank is detected by a level meter in the prior art, the measurement result is inaccurate, and the parallelism of the outer ring of the crank shaft crank neck can not be detected, the following proposal is provided, which comprises a base, wherein the outer wall of the base is provided with a chute, the inner wall of the chute is connected with a slide block in a sliding way, the top of the sliding block is fixedly connected with a vertical rod, the top of the vertical rod is fixedly connected with a limiting block, the outer wall of the limiting block is slidably sleeved with a sleeve rod, the top of the sleeve rod is fixedly connected with a transverse plate, the utility model has the advantages that the parallelism of the crank shaft crank neck is measured in multiple groups, the result is accurate, and the rotation detection can be carried out on the parallelism of the outer ring of the crank shaft crank neck.

Description

Crankshaft crank neck parallelism detection device

Technical Field

The utility model relates to the technical field of crankshaft precision detection equipment, in particular to a crankshaft crank neck parallelism detection device.

Background

The crankshaft is the most important component in the engine. The crankshaft bears the force transmitted by the connecting rod, converts the force into torque, outputs the torque through the crankshaft and drives other accessories on the engine to work, and the crankshaft bears the bending and twisting load under the combined action of the centrifugal force of the rotating mass, the gas inertia force with periodic change and the reciprocating inertia force, so that the crankshaft is required to have enough strength and rigidity, and the surface of a journal needs to be wear-resistant, work uniformly and balance well.

In the prior art, the parallelism of the crankshaft crank is detected through the level meter, the measuring result is inaccurate, and the parallelism of the outer ring of the crankshaft crank cannot be detected in a rotating mode, so that the crankshaft crank parallelism detecting device is provided and used for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that the parallelism of a crankshaft crank journal is detected by a level gauge, the measurement result is inaccurate, and the rotation detection of the parallelism of an outer ring of the crankshaft crank journal cannot be carried out.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a bent neck depth of parallelism detection device of bent axle, the on-line screen storage device comprises a base, the spout has been seted up to the outer wall of base, the inner wall sliding connection of spout has the slider, the top fixedly connected with montant of slider, the top fixedly connected with stopper of montant, the outer wall sliding sleeve of stopper is equipped with the loop bar, the top fixedly connected with diaphragm of loop bar, T type groove has been seted up to the bottom of diaphragm, the inner wall sliding connection in T type groove has T type piece, the top of base is equipped with slewing mechanism.

Preferably, slewing mechanism includes the ball, two backup pads of the top fixedly connected with of base, V type groove has all been seted up to the outer wall of two backup pads, and a plurality of slots have evenly been seted up to the inside in V type groove, the inner wall of slot and the outer wall sliding connection of ball, the outer wall sliding connection of ball has the main shaft, the one end fixedly connected with main shaft neck of main shaft, the one end fixedly connected with axle bush of main shaft neck, the outer wall fixedly connected with connecting rod axle of axle bush makes things convenient for the main shaft to rotate through setting up the ball.

Preferably, the fixed cover of outer wall of montant is equipped with the annular piece, and the outer wall and the stopper sliding connection of annular piece prevent to break away from between loop bar and the montant through setting up annular piece and stopper.

Preferably, the bottom of the T-shaped block is fixedly connected with a guide plate, the bottom of the guide plate is fixedly connected with a connecting rod, the bottom of the connecting rod is fixedly connected with a dial indicator, and the parallelism of the main journal and the connecting shaft is detected by setting the dial indicator.

Preferably, the outer wall of the loop bar is provided with a screw hole, and the inner wall of the screw hole is in threaded connection with a bolt.

Preferably, one end of the bolt is rotatably connected with an arc-shaped plate, and the outer wall of the arc-shaped plate is in contact with the vertical rod.

Preferably, the bottom fixedly connected with four supports of base, the bottom of four supports all is equipped with the universal wheel.

Compared with the prior art, the utility model has the advantages that:

(1) this scheme rotates the bolt and makes the arc remove the rigidity between loop bar and the montant, lift diaphragm and loop bar, make the both ends of bent axle place two V type inslots respectively, support through ball and half slot, remove the montant to the anterior segment of bent axle, and remove the connecting rod and remove to the bent axle direction, make the amesdial be located the perpendicular top of connecting rod axle and main journal, put down the loop bar and make the sense terminal of amesdial contact with the connecting rod axle respectively, the surface of main journal carries out the contact, set up slewing mechanism and make the sense terminal of amesdial slide with the connecting rod axle respectively, the surface of main journal slides, the main shaft rotates through the ball.

(2) The utility model carries out multi-group measurement on the parallelism of the crank shaft crank neck, has accurate result and can carry out rotation detection on the parallelism of the outer ring of the crank shaft crank neck.

Drawings

FIG. 1 is a schematic cross-sectional view of a crankshaft crank parallelism detecting apparatus according to the present invention;

fig. 2 is an enlarged schematic structural diagram of a portion a in fig. 1 of a crankshaft crank parallelism detection apparatus according to the present invention;

FIG. 3 is a schematic structural view of a bolt and an arc plate of the crankshaft crank parallelism detecting apparatus according to the present invention;

fig. 4 is a schematic side view of a crankshaft crank parallelism detecting apparatus according to the present invention.

In the figure: 1. a base; 2. a chute; 3. a slider; 4. a vertical rod; 5. a limiting block; 6. a loop bar; 7. a transverse plate; 8. a T-shaped groove; 9. a T-shaped block; 10. a connecting rod; 11. a dial indicator; 12. a bolt; 13. an arc-shaped plate; 14. a support plate; 15. a semicircular groove; 16. a ball bearing; 17. a main shaft; 18. a link shaft; 19. a main journal; 20. and (4) a bracket.

Detailed Description

As shown in figures 1-4, relates to a crankshaft crank parallelism detection device, which comprises a base 1, wherein the outer wall of the base 1 is provided with a chute 2, the inner wall of the chute 2 is slidably connected with a slide block 3, the top of the slide block 3 is fixedly connected with a vertical rod 4, the outer wall of the vertical rod 4 is fixedly sleeved with an annular block, the outer wall of the annular block is slidably connected with a limit block 5, the limit block 5 prevents the vertical rod 4 from being separated from a loop bar 6, the top of the vertical rod 4 is fixedly connected with the limit block 5, the outer wall of the limit block 5 is slidably sleeved with a loop bar 6, the outer wall of the loop bar 6 is provided with a screw hole, the inner wall of the screw hole is in threaded connection with a bolt 12, the top of the loop bar 6 is fixedly connected with a transverse plate 7, the bottom of the transverse plate 7 is provided with a T-shaped groove 8, the inner wall of the T-shaped groove 8 is slidably connected with a T-shaped block 9, the T-shaped block 9 is convenient for the connecting rod 10 to move, the bottom of the T-shaped block 9 is fixedly connected with a guide plate, the bottom fixedly connected with connecting rod 10 of deflector, the bottom fixedly connected with amesdial 11 of connecting rod 10, amesdial 11 detects the depth of parallelism of connecting rod axle 18 and main journal 19, and the top of base 1 is equipped with slewing mechanism.

As shown in fig. 1, the rotating mechanism includes a ball 16, two support plates 14 are fixedly connected to the top of the base 1, V-shaped grooves are formed in the outer walls of the two support plates 14, a plurality of semi-circular grooves 15 are uniformly formed in the V-shaped grooves, the inner walls of the semi-circular grooves 15 are slidably connected to the outer walls of the ball 16, a main shaft 17 is slidably connected to the outer walls of the ball 16, the main shaft 17 rotates to rotate a connecting shaft 18 and a main journal 19, one end of the main shaft 17 is fixedly connected to a main journal 19, one end of the main journal 19 is fixedly connected to a bearing bush, the outer wall of the bearing bush is fixedly connected to the connecting shaft 18, four supports 20 are fixedly connected to the bottom of the base 1, and universal wheels are disposed at the bottoms of the four supports 20.

The working principle is as follows: during detection, the base 1 is moved to a horizontal position through the bracket 20 and the pulley, the bolt 12 is rotated to enable the arc-shaped plate 13 to release the position fixing between the sleeve rod 6 and the vertical rod 4, the transverse plate 7 and the sleeve rod 6 are lifted, two ends of a crankshaft are respectively placed in two V-shaped grooves, the two ends of the crankshaft are supported through the balls 16 and the semi-circular grooves 15, the vertical rod 4 is moved to the front section of the crankshaft, the vertical rod 4 is moved through the sliding block 3 and the sliding groove 2, the connecting rod 10 is moved towards the direction of the crankshaft, the connecting rod 10 is moved through the T-shaped grooves 8 and the T-shaped blocks 9, the dial indicator 11 is positioned above the connecting rod shaft 18 and the main journal 19 vertically, the connecting rod shaft 18 and the main journal 19 are conveniently detected, the sleeve rod 6 is lowered to enable the detection end of the dial indicator 11 to be respectively contacted with the outer surfaces of the connecting rod shaft 18 and the main journal 19, and the main shaft 17 is rotated to enable the detection end of the dial indicator 11 to be respectively contacted with the connecting rod shaft 18, The surface of the main journal 19 slides to obtain a plurality of sets of data, so that the parallelism of the link shaft 18 and the main journal 19 is analyzed, and the main shaft 17 rotates through the balls 16.

The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.

Claims

1. The utility model provides a bent neck depth of parallelism detection device of bent axle, includes base (1), its characterized in that, spout (2) have been seted up to the outer wall of base (1), the inner wall sliding connection of spout (2) has slider (3), top fixedly connected with montant (4) of slider (3), the top fixedly connected with stopper (5) of montant (4), the outer wall sliding sleeve of stopper (5) is equipped with loop bar (6), the top fixedly connected with diaphragm (7) of loop bar (6), T type groove (8) have been seted up to the bottom of diaphragm (7), the inner wall sliding connection in T type groove (8) has T type piece (9), the top of base (1) is equipped with slewing mechanism.

2. A crankshaft crank neck parallelism detection device according to claim 1, characterized in that the rotating mechanism comprises a ball (16), two support plates (14) are fixedly connected to the top of the base (1), a V-shaped groove is formed in the outer wall of each of the two support plates (14), a plurality of semi-circular grooves (15) are uniformly formed in the V-shaped groove, the inner wall of each semi-circular groove (15) is slidably connected with the outer wall of the ball (16), a main shaft (17) is slidably connected to the outer wall of the ball (16), a main journal (19) is fixedly connected to one end of the main shaft (17), a bearing bush is fixedly connected to one end of the main journal (19), and a connecting rod shaft (18) is fixedly connected to the outer wall of the bearing bush.

3. A crankshaft crank neck parallelism detection device according to claim 1, characterized in that the outer wall of the vertical rod (4) is fixedly sleeved with an annular block, and the outer wall of the annular block is slidably connected with the limit block (5).

4. A crankshaft crank neck parallelism detection device according to claim 1, characterized in that the bottom of the T-shaped block (9) is fixedly connected with a guide plate, the bottom of the guide plate is fixedly connected with a connecting rod (10), and the bottom of the connecting rod (10) is fixedly connected with a dial indicator (11).

5. A crankshaft crank neck parallelism detection device according to claim 1, characterized in that the outer wall of the loop bar (6) is provided with a screw hole, and the inner wall of the screw hole is connected with a bolt (12) in a threaded manner.

6. A crankshaft crank neck parallelism detection device according to claim 5, characterized in that one end of the bolt (12) is rotatably connected with an arc-shaped plate (13), and the outer wall of the arc-shaped plate (13) is in contact with the vertical rod (4).

7. A crankshaft crank neck parallelism detection device according to claim 1, characterized in that four brackets (20) are fixedly connected to the bottom of the base (1), and universal wheels are arranged at the bottoms of the four brackets (20).