CN220206590U

CN220206590U - Crankshaft checking fixture

Info

Publication number: CN220206590U
Application number: CN202321774523.2U
Authority: CN
Inventors: 李雨峰; 师圣尧
Original assignee: Individual
Current assignee: Nanjing Purest Building Materials Technology Co ltd
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2023-12-19
Anticipated expiration: 2033-07-07

Abstract

The utility model discloses a crankshaft testing fixture which comprises a base, wherein a fixing plate is fixedly connected to one side of the base, a circular plate which is in a left-right axial direction is rotatably arranged on one side of the fixing plate, two V-shaped clamping blocks which are vertically symmetrical and can move in opposite directions are arranged on one side of the circular plate, a longitudinal movable rod is arranged on one side of the base in a sliding manner along the length direction of the V-shaped clamping blocks, and a measuring meter which can be lifted and has a downward detection end is arranged on the front surface of the movable rod. According to the utility model, one end of the crank to be detected can be placed between the two V-shaped clamping blocks, one end of the crank can be clamped and fixed through the opposite movement of the two V-shaped clamping blocks, then the measuring meter is lowered to enable the detection end of the measuring meter to be in contact with the surface of the crank, and the circular plate can be rotated to drive the crank to rotate along the central axis of the circular plate, so that the purpose of detecting the eccentric value of the crank is achieved.

Description

Crankshaft checking fixture

Technical Field

The utility model relates to the technical field of crankshaft detection, in particular to a crankshaft detection tool.

Background

The crankshaft is the most important component in an engine. The eccentric value of the engine is measured by a gauge after the production and processing. The measuring tools are not stable and convenient enough when fixing crankshafts with different sizes, and are inconvenient to drive the crankshafts to rotate so as to adjust measuring positions.

In the prior art, a general purpose engine crankshaft gauge is provided in publication number CN218673471U, and comprises a bottom plate, wherein the top end of the bottom plate is fixedly connected with four support rods, one side of the top end of the support plate is fixedly connected with an adjusting device, the top end of the adjusting device is fixedly connected with an electric telescopic rod, the telescopic end of the electric telescopic rod is fixedly connected with a mounting plate, and the top end of the mounting plate is penetrated with a measuring meter; the fixed rotating device is arranged, so that crankshafts with different sizes can be conveniently fixed, and the crankshafts can be conveniently driven to rotate.

In the above design, one end of the crankshaft is clamped and fixed by two circular arc clamping plates, when the crankshaft with smaller diameter is detected, the two clamping plates can only contact two parts on the surface of the crankshaft when clamping the crankshaft, the firmness of the crankshaft is difficult to ensure when clamping, and rotation and offset are likely to occur, so that it is necessary to design a crankshaft detection tool to solve the problem.

Disclosure of Invention

Aiming at the technical problems, the utility model aims to solve the problems that the firmness of a crankshaft is difficult to ensure and the rotation and the deflection are likely to occur during clamping in the prior art.

In order to achieve the above purpose, the utility model provides a crankshaft testing fixture, which comprises a base, wherein one side of the base is fixedly connected with a fixed plate, one side of the fixed plate is rotatably provided with a circular plate in a left-right axial direction, one side of the circular plate is provided with two V-shaped clamping blocks which are vertically symmetrical and can move in opposite directions, one side of the base is slidably provided with a longitudinal movable rod along the length direction of the movable rod, and the front surface of the movable rod is provided with a measuring meter with a liftable and downward detection end.

Preferably, a chute is formed in one side of the circular plate, sliding blocks which are inserted in the chute in a sliding manner are formed in one sides of the two V-shaped clamping blocks, a bidirectional threaded rod is connected in the chute in a rotating manner through a bearing, two sides of the bidirectional threaded rod are respectively inserted on the two sliding blocks through the matching of a positive thread and a negative thread, the first handle is fixedly connected to the top of the bidirectional threaded rod, the first handle is rotated by hands to drive the bidirectional threaded rod to rotate, and the two V-shaped clamping blocks can clamp/release one side of a crank.

Preferably, the fixing plate is rotatably inserted with a left-right axial rotating shaft through a bearing, one side of the rotating shaft is fixed with the surface of the circular plate, and the other side of the rotating shaft is fixedly connected with a handle II, so that the circular plate can be rotationally connected with one side of the fixing plate.

Preferably, two bilateral symmetry's fixed block is fixedly connected with on one side of the top of base, two guide bars of bilateral symmetry are fixedly connected with between two fixed blocks, and the bottom sliding sleeve of movable rod is on two guide bars for the movable rod can form at the left and right sliding connection of base top.

Preferably, the front of movable rod has seted up the travel groove along its direction of height, and the block of stroke has been pegged graft in the travel inslot block slip, and the front fixedly connected with connecting rod of stroke block, and the one end that the connecting rod kept away from the stroke block is fixed mutually with the measuring surface back.

Preferably, the threaded rod which is vertical and axial is connected in the travel groove through the rotation of the bearing, the threaded rod is inserted on the travel block through the matching of threads, the top of the threaded rod penetrates through the movable rod and is fixedly connected with a hand wheel, the hand wheel is rotated by hands, the threaded rod can be rotated, and the height position of the measuring meter can be adjusted according to the diameter of the crank.

According to the technical scheme, one end of the crank to be detected can be placed between the two V-shaped clamping blocks, one end of the crank can be clamped and fixed through the opposite movement of the two V-shaped clamping blocks, then the measuring meter is lowered to enable the detecting end of the measuring meter to be in contact with the surface of the crank, the circular plate can be rotated to drive the crank to rotate along the central axis of the crank, and therefore the purpose of detecting the eccentric value of the crank is achieved.

Additional features and advantages of the utility model will be set forth in the detailed description which follows; and none of the utility models are related to the same or are capable of being practiced in the prior art.

Drawings

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

FIG. 1 is a schematic perspective view of a crankshaft inspection tool according to the present utility model;

FIG. 2 is a schematic side view of a crankshaft inspection tool according to the present utility model;

FIG. 3 is a schematic cross-sectional view of the crankshaft inspection tool of the present utility model taken along line A-A in FIG. 2;

fig. 4 is a schematic perspective view of a crankshaft inspection tool according to another embodiment of the present utility model.

Description of the reference numerals

1. A base; 2. a fixing plate; 3. a circular plate; 4. v-shaped clamping blocks; 5. a movable rod; 6. a measuring meter; 7. a chute; 8. a slide block; 9. a two-way threaded rod; 91. a first handle; 10. a rotating shaft; 11. a second handle; 12. a fixed block; 13. a guide rod; 14. a travel groove; 15. a travel block; 16. a connecting rod; 17. a threaded rod; 18. and a hand wheel.

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

In the present utility model, unless otherwise indicated, terms such as "upper, lower, inner, outer" and the like are used merely to denote orientations of the term in a normal use state or are commonly understood by those skilled in the art, and should not be construed as limitations of the term.

Referring to fig. 1-4, the present utility model provides a crankshaft inspection tool: including base 1, one side fixedly connected with fixed plate 2 of base 1, one side rotation of fixed plate 2 is provided with is controls axial circular plate 3, one side of circular plate 3 is provided with two and reciprocates symmetry and can carry out V type clamp splice 4 that opposite direction removed, one side of base 1 is provided with along its length direction slip and is fore-and-aft movable rod 5, movable rod 5's front is provided with liftable and detection end measuring table 6 down, like this, can place the crank one end that needs to detect between two V type clamp splice 4, can carry out the centre gripping fixed with the one end of crank through the removal of two V type clamp splice 4 in opposite directions, then make its detection end to contact with the surface of crank again, and can rotate circular plate 3 in order to drive the crank and rotate along its axis, thereby reach the purpose that detects crank eccentric value, and this gauge carries out the centre gripping to the crank through two V type clamp splice 4, make the crank surface at least everywhere with V type clamp splice 4 inconsistent, can make the crank by firm and the diameter of the fixed crank that just can use compatible specification.

In order to enable the two V-shaped clamping blocks 4 to move in opposite directions or in opposite directions, in some embodiments, it is proposed that a sliding groove 7 is formed in one side of the circular plate 3, sliding blocks 8 which are inserted in the sliding groove 7 in a sliding manner are formed in one sides of the two V-shaped clamping blocks 4, a bidirectional threaded rod 9 is rotatably connected in the sliding groove 7 through bearings, two sides of the bidirectional threaded rod 9 are respectively inserted in the two sliding blocks 8 through matching of positive threads and negative threads, a handle one 91 is fixedly connected to the top of the bidirectional threaded rod 9, the handle one 91 can be rotated by rotating the bidirectional threaded rod 9 by hands, and the bidirectional threaded rod 9 drives the two sliding blocks 8 to move in opposite directions or in opposite directions along the sliding groove 7 through matching of the positive threads and the negative threads, so that the two V-shaped clamping blocks 4 can synchronously move and clamp/release one side of a crank.

Referring to fig. 3, a rotating shaft 10 in a left-right axial direction is rotatably inserted on the fixed plate 2 through a bearing, one side of the rotating shaft 10 is fixed with the surface of the circular plate 3, and a second handle 11 is fixedly connected to the other side of the rotating shaft 10, so that the circular plate 3 can be rotatably connected to one side of the fixed plate 2, and the second handle 11 is held by a hand and rotated to drive the circular plate 3 to rotate.

The specific connection mode between the movable rod 5 and the base 1 is as follows, two bilaterally symmetrical fixed blocks 12 are fixedly connected to one side of the top of the base 1, two guide rods 13 which are vertically symmetrical are fixedly connected between the two fixed blocks 12, and the bottom of the movable rod 5 is sleeved on the two guide rods 13 in a sliding manner, so that the movable rod 5 can form bilaterally sliding connection at the top of the base 1.

Specifically, the front of movable rod 5 has seted up travel groove 14 along its direction of height, and the block of stroke 15 has been pegged graft in the travel groove 14 to the block of stroke 15's front fixedly connected with connecting rod 16, and the one end that the connecting rod 16 kept away from the block of stroke 15 is fixed mutually with the measuring table 6 back for measuring table 6 can form at the positive upper and lower sliding connection of movable rod 5.

Furthermore, the threaded rod 17 in the vertical axial direction is rotationally connected in the travel groove 14 through a bearing, the threaded rod 17 is inserted on the travel block 15 through the matching of threads, the top of the threaded rod 17 penetrates through the movable rod 5 and is fixedly connected with the hand wheel 18, the hand wheel 18 is rotated by hand, the threaded rod 17 can be rotated, the travel block 15 can be driven to move up and down in the travel groove 14 through the matching of threads, and the height position of the measuring meter 6 can be adjusted according to the diameter of the crank.

The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.

In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.

Claims

1. The utility model provides a bent axle examines utensil, includes base (1), its characterized in that: one side fixedly connected with fixed plate (2) of base (1), one side rotation of fixed plate (2) is provided with is control axial circular plate (3), and one side of circular plate (3) is provided with two and reciprocates symmetry and can carry out V type clamp splice (4) that move in opposite directions, and one side of base (1) is provided with along its length direction slip and is longitudinal movable rod (5), and the front of movable rod (5) is provided with liftable and measuring table (6) that the detection end was down.

2. The crankshaft inspection tool as claimed in claim 1, wherein: a sliding groove (7) is formed in one side of the circular plate (3), sliding blocks (8) which are inserted into the sliding groove (7) in a sliding mode are formed in one sides of the two V-shaped clamping blocks (4), a bidirectional threaded rod (9) is connected in the sliding groove (7) in a rotating mode through a bearing, two sides of the bidirectional threaded rod (9) are inserted into the two sliding blocks (8) through matching of positive threads and negative threads respectively, and a handle I (91) is fixedly connected to the top of the bidirectional threaded rod (9).

3. The crankshaft inspection tool as claimed in claim 1, wherein: the fixing plate (2) is rotatably inserted with a rotating shaft (10) in the left-right axial direction through a bearing, one side of the rotating shaft (10) is fixed with the surface of the circular plate (3), and the other side of the rotating shaft (10) is fixedly connected with a handle II (11).

4. The crankshaft inspection tool as claimed in claim 1, wherein: two bilaterally symmetrical fixed blocks (12) are fixedly connected to one side of the top of the base (1), two guide rods (13) which are vertically symmetrical are fixedly connected between the two fixed blocks (12), and the bottoms of the movable rods (5) are sleeved on the two guide rods (13) in a sliding mode.

5. The crankshaft inspection tool as claimed in claim 1, wherein: the front of movable rod (5) has seted up travel groove (14) along its direction of height, and the joint slip is pegged graft in travel groove (14) has stroke piece (15), and the front fixedly connected with connecting rod (16) of stroke piece (15), and the one end that stroke piece (15) was kept away from to connecting rod (16) is fixed mutually with measuring table (6) back.

6. The crankshaft inspection tool as claimed in claim 5, wherein: the travel groove (14) is internally and rotatably connected with a threaded rod (17) in a vertical axial direction through a bearing, the threaded rod (17) is inserted on the travel block (15) through the matching of threads, and the top of the threaded rod (17) penetrates through the movable rod (5) and is fixedly connected with a hand wheel (18).