CN210089545U

CN210089545U - Clamping and positioning tool for locomotive crankshaft detection

Info

Publication number: CN210089545U
Application number: CN201921333510.5U
Authority: CN
Inventors: 王纯宏; 丁有銮
Original assignee: Dalian Xinke Crankshaft Repair Co Ltd
Current assignee: Dalian Xinke Crankshaft Repair Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-02-18
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses a clamping location frock for locomotive crankshaft detection belongs to locomotive crankshaft detection location technical field, including work platform, the last speed reducer base that is equipped with of work platform, install the speed reducer on the speed reducer base, speed reducer one side is connected with inverter motor, and the opposite side is connected with the universal joint who is used for being connected with the bent axle; the working platform is provided with a supporting device, and the supporting device is positioned on one side of the universal coupling; the supporting device comprises a front support, a middle support and a rear support which are sequentially arranged, so that an artificial disc shaft can be replaced, manpower is saved, and the production efficiency is improved.

Description

Clamping and positioning tool for locomotive crankshaft detection

Technical Field

The utility model belongs to the technical field of the locomotive bent axle detects the location, concretely relates to clamping location frock for locomotive bent axle detects.

Background

The crankshaft is one of key parts of a locomotive engine, the strength and the rigidity of the crankshaft can meet the use requirements only when meeting certain requirements, so that the requirements on the processing and the detection of the crankshaft are high, particularly the factory detection of a crankshaft product is an important core factor related to the accuracy of a processing result and a factory result, meanwhile, the detection efficiency is also an important link for processing, repairing and improving the production efficiency of the crankshaft, and the crankshaft is inconvenient to position, clamp and operate in the processing and detecting processes due to the structural irregularity of the crankshaft, so that the processing, the detection quality and the efficiency of the crankshaft are influenced.

The traditional crankshaft detection method is that a crankshaft is placed on three V-shaped iron supports, the height of three positions is adjusted manually, and then an operator rotates the crankshaft by means of end holes to realize the detection of the jump amount of a crankshaft journal and the detection of the parallelism and the cylindricity. The method has the advantages of high labor intensity of workers, low efficiency and poor stability, and axial movement is easy to cause during detection due to the straightness problem of the crankshaft, so that the detection result is distorted and misjudged, and the crankshaft is unqualified and reworked.

SUMMERY OF THE UTILITY MODEL

For solving exist not enough among the prior art, the utility model provides a clamping location frock for locomotive bent axle detects can replace artifical dish axle, uses manpower sparingly, improves production efficiency.

The utility model discloses a solve the technical scheme that its technical problem adopted and be: a clamping and positioning tool for detecting a crankshaft of a locomotive comprises a working platform, wherein a speed reducer base is arranged on the working platform, a speed reducer is arranged on the speed reducer base, one side of the speed reducer is connected with a variable frequency motor, and the other side of the speed reducer is connected with a universal coupling used for being connected with the crankshaft; the working platform is provided with a supporting device, and the supporting device is positioned on one side of the universal coupling; the supporting device comprises a front support, a middle support and a rear support which are sequentially arranged, the front support and the rear support are of V-shaped block structures with fixed heights, the middle support comprises a base, a slot is formed in the base, a supporting column is connected in the slot, a telescopic adjusting rod which is vertically arranged is arranged in the supporting column, an adjusting nut and a fixing nut are connected to the adjusting rod, and the fixing nut is located below the adjusting nut; the top end of the adjusting rod is connected with the bottom end of the connecting rod, and the top end of the connecting rod is connected with the supporting block.

Further, the supporting shoe includes supporting shoe and bottom suspension fagging, it passes through the side guard board with the bottom suspension fagging and connects to go up the supporting shoe, it is equipped with bearing to go up the supporting shoe both sides, and bearing top place plane is higher than supporting shoe top place plane, goes up the supporting shoe top and sets up flutedly, the recess is located between the bearing of both sides.

Furthermore, set up in the pillar and connect pole groove, operation groove and adjusting lever slot, connect pole groove, operation groove, adjusting lever slot from the top down and set gradually and communicate each other, the adjusting lever lower part is located the adjusting lever slot, and the part that the adjusting lever was equipped with adjusting nut and fixation nut is located the operation inslot, connects the pole to be located and connects the pole inslot and be higher than and connect the pole groove, connect the pole outer wall and connect to be equipped with between the pole groove lateral wall and connect the pole cover.

The utility model has the advantages that: the crankshaft position tolerance detection device can replace a manual disc shaft, the crankshaft does not move, labor is saved, labor cost is reduced, detection efficiency is improved, the rotating speed is adjustable, the crankshaft position tolerance detection device can be started and stopped at any time, large errors caused by manual operation are eliminated, and the crankshaft position tolerance after production repair is detected quickly, stably and accurately; the middle position support is adjustable in height, replaces the traditional fixed V-shaped block, is more flexible to operate, guarantees the three supporting points of the crankshaft diameter and is consistent in height, and meets the detection requirement.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the meso-position bracket of the present invention;

fig. 3 is a schematic view of the front support and the rear support of the present invention.

The reference numbers in the figures are as follows: 1. the base, 2, the pillar, 3, the adjusting lever, 4, adjusting nut, 5, fixation nut, 6, connect the pole, 7, connect the pole cover, 8, go up the supporting block, 9, the bottom suspension piece, 10, the side guard board, 11, the ball groove, 12, the steel ball, 13, the holder, 14, the ball, 15, the bearing, 16, the recess, 17, the mount, 18, the stopper, 19, work platform, 20, the speed reducer base, 21, the speed reducer, 22, inverter motor, 23, universal joint, 24, the fore carriage, 25, the meso position support, 26, the back carriage.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Example 1

A clamping and positioning tool for detecting a crankshaft of a locomotive comprises a working platform 19, wherein a speed reducer base 20 is arranged on the working platform 19, a speed reducer 21 is installed on the speed reducer base 20, one side of the speed reducer 21 is connected with a variable frequency motor 22, and the other side of the speed reducer 21 is connected with a universal coupling 23 used for being connected with the crankshaft; the working platform 19 is provided with a supporting device which is positioned on one side of the universal coupling 23; the supporting device comprises a front support 24, a middle support 25 and a rear support 26 which are sequentially arranged, wherein the front support 24 and the rear support 26 are of V-shaped block structures with fixed heights.

In this embodiment, the speed reducer 21 is preferably an XWED64 type cycloidal pinwheel speed reducer for realizing smooth transition transmission, the variable frequency motor 22 is a J100LC-4 three-phase asynchronous motor, the variable frequency motor 22 is connected with a variable frequency control box, and preferably, the variable frequency control box is an SMYB alternating current motor variable frequency speed control cabinet for adjusting the rotating speed of the motor and realizing control of start and stop at any time and control of the rotating speed of a crankshaft; the preferred model of universal joint 23 is swc250, however, in actual operation, speed reducer 21, inverter motor 22, variable frequency control box, universal joint 23 are not limited to above-mentioned model, can select the different models that can satisfy corresponding function as required.

The middle support 25 comprises a base 1, a slot is formed in the base 1, a strut 2 is connected in the slot, a fixing frame 17 is connected to the outer wall of the strut 2, the bottom of the fixing frame 17 is fixed on the base 1, and the fixing frame 17 is arranged to prevent the strut 2 from swinging left and right, so that the strut 2 is fastened in the slot of the base 1; a telescopic adjusting rod 3 which is vertically arranged is arranged in the strut 2, an adjusting nut 4 for adjusting the height and a fixing nut 5 for fastening the adjusted position are connected to the adjusting rod 3, and the fixing nut 5 is positioned below the adjusting nut 4; a connecting rod groove, an operating groove and an adjusting rod slot are formed in the strut 2, the connecting rod groove, the operating groove and the adjusting rod slot are sequentially arranged from top to bottom and are communicated with each other, the lower portion of the adjusting rod 3 is in threaded connection with the adjusting rod slot and can be screwed up and down in the adjusting rod slot, the adjusting nut 4 is fixedly connected with the adjusting rod 3, the fixing nut 5 is in threaded connection with the adjusting rod 3, the adjusting nut 4 is screwed clockwise to drive the adjusting rod 3 to move downwards, the adjusting nut 4 is screwed anticlockwise to drive the adjusting rod 3 to move upwards, and after the position is adjusted, the fixing nut 5 is screwed to lock the adjusting rod 3; the part of the adjusting rod 3 provided with the adjusting nut 4 and the fixing nut 5 is positioned in the operating groove, the connecting rod 6 is positioned in the connecting rod groove and is higher than the connecting rod groove, and a connecting rod sleeve 7 is arranged between the outer wall of the connecting rod 6 and the side wall of the connecting rod groove. The bottom end of the connecting rod 6 is provided with a clamping groove, the bottom of the clamping groove is open, the side wall of the clamping groove is clamped with the top end of the adjusting rod 3, the top of the adjusting rod 3 is provided with a ball groove, steel balls 12 are arranged in the ball groove, a gap is formed between the top of the adjusting rod 3 and the top of the clamping groove, the top end of each steel ball 12 is in contact with the top of the clamping groove, and the steel balls 12 are arranged to reduce friction between the adjusting rod 3 and the connecting rod 6 and prolong the service life. The top end of the connecting rod 6 is connected with a supporting block, the supporting block comprises an upper supporting block 8 and a lower supporting block 9, the upper supporting block 8 and the lower supporting block 9 are connected through a side guard plate 10, a ball groove 11 is formed among the bottom of the upper supporting block 8, the top of the lower supporting block 9 and the inner wall of the side guard plate 10, a retainer 13 is arranged in the ball groove 11, the retainer 13 is connected to the inner wall of the side guard plate 10, and a plurality of balls 14 are arranged on the retainer 13; bearing bearings 15 are arranged on two sides of the upper supporting block 8, the plane where the top ends of the bearing bearings 15 are located is higher than the top surface of the upper supporting block 8, a groove 16 is formed in the top of the upper supporting block 8, and the groove 16 is located between the bearing bearings 15 on the two sides; the bottom of the lower supporting block 9 is connected with a limiting block 18.

The number of the balls 14 is preferably four in the embodiment, which plays a role in straightening, if the device is stably placed, the balls 14 are kept still, and if the device is not stably placed, the balls 14 roll, so that the placement position of the device needs to be adjusted; connect the pole cover 7 that sets up between pole 6 outer wall and the pole groove lateral wall to play spacing and reduce frictional effect, avoid connecting pole 6 horizontal hunting, thereby avoid connecting pole 6 and pillar 2 direct contact to produce the friction simultaneously and lead to connecting pole 6 and pillar 2 life-span to shorten. The operation of the embodiment is preferably a front and back through groove, so that the manual direct operation is convenient, when the height is adjusted, the adjusting nut 4 in the operation groove is screwed, the adjusting rod 3 is made to stretch and retract, the connecting rod 6 is driven to further drive the supporting block to adjust the height, and the fixing nut 5 is screwed after the adjustment is finished, so that the fixing position is fixed, and the drifting is prevented; the limiting block 18 plays a limiting role, loss friction caused by direct contact between the lower supporting block 9 and the strut 2 is avoided, and the arrangement of the connecting rod sleeve 7 further plays a role; during the use, place the bent axle on bearing 15, reduce the friction of bent axle and last supporting block 8, recess 16 shape and bent axle main journal shape phase cooperation avoid the bent axle meso position main journal vertical reciprocating swing and the vertical run-out that leads to detect the distortion, and control horizontal drunkenness, improve and detect the precision.

The utility model discloses a use method does: the crankshaft to be detected is placed on the front support 24, the middle support 25 and the rear support 26, the universal coupling 23 is connected with the end face of the crankshaft through a long hole flange and fixed through inner hexagonal screws, connection with crankshafts of various specifications can be achieved, axial movement of the crankshafts can be eliminated, and detection result distortion caused by the axial movement of the crankshafts is avoided; the heights of the front support 24 and the rear support 26 are adjusted to be consistent, then the height of the middle support 25 is adjusted through the adjusting rod 3 until the heights of the first main journal, the middle main journal and the last main journal of the crankshaft are consistent, the position is fixed by screwing the fixing nut 5, the variable frequency motor 22 is adjusted to a proper rotating speed and a proper rotating direction through the variable frequency control box, the crankshaft is driven to automatically rotate, and then the crankshaft form and position tolerance detection can be carried out.

The above description is only the specific implementation manner of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the design of the present invention within the technical scope of the present invention.

Claims

1. A clamping and positioning tool for detecting a crankshaft of a locomotive comprises a working platform (19) and is characterized in that a speed reducer base (20) is arranged on the working platform (19), a speed reducer (21) is mounted on the speed reducer base (20), one side of the speed reducer (21) is connected with a variable frequency motor (22), and the other side of the speed reducer is connected with a universal coupling (23) used for being connected with the crankshaft; the working platform (19) is provided with a supporting device, and the supporting device is positioned on one side of the universal coupling (23); the supporting device comprises a front support (24), a middle support (25) and a rear support (26) which are sequentially arranged, the front support (24) and the rear support (26) are of V-shaped block structures with fixed heights, the middle support (25) comprises a base (1), a slot is formed in the base (1), a supporting column (2) is connected in the slot, a telescopic adjusting rod (3) which is vertically arranged is arranged in the supporting column (2), an adjusting nut (4) and a fixing nut (5) are connected to the adjusting rod (3), and the fixing nut (5) is located below the adjusting nut (4); the top end of the adjusting rod (3) is connected with the bottom end of the connecting rod (6), and the top end of the connecting rod (6) is connected with the supporting block.

2. The clamping and positioning tool for the locomotive crankshaft detection is characterized in that the supporting blocks comprise an upper supporting block (8) and a lower supporting block (9), the upper supporting block (8) and the lower supporting block (9) are connected through a side guard plate (10), bearing bearings (15) are arranged on two sides of the upper supporting block (8), the plane where the tops of the bearing bearings (15) are located is higher than the plane where the tops of the upper supporting block (8) are located, a groove (16) is formed in the top of the upper supporting block (8), and the groove (16) is located between the bearing bearings (15) on two sides.

3. The clamping and positioning tool for the locomotive crankshaft detection is characterized in that a connecting rod groove, an operating groove and an adjusting rod inserting groove are formed in the strut (2), the connecting rod groove, the operating groove and the adjusting rod inserting groove are sequentially formed from top to bottom and are communicated with each other, the lower portion of the adjusting rod (3) is located in the adjusting rod inserting groove, the portion, provided with an adjusting nut (4) and a fixing nut (5), of the adjusting rod (3) is located in the operating groove, the connecting rod (6) is located in the connecting rod groove and is higher than the connecting rod groove, and a connecting rod sleeve (7) is arranged between the outer wall of the connecting rod (6) and the side wall of the connecting rod groove.