CN215824281U - Crankshaft main journal adjusting device - Google Patents
Crankshaft main journal adjusting device Download PDFInfo
- Publication number
- CN215824281U CN215824281U CN202122258619.0U CN202122258619U CN215824281U CN 215824281 U CN215824281 U CN 215824281U CN 202122258619 U CN202122258619 U CN 202122258619U CN 215824281 U CN215824281 U CN 215824281U
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- China
- Prior art keywords
- hole
- main journal
- crankshaft
- pushing device
- shaft
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a crankshaft main journal adjusting device.A rack is in shaft connection with a rotary frame; one end of the rotary frame is connected with the bracket, and the upper part of the bracket is abutted against the lower end of the main journal of the crankshaft; the other end of the revolving frame is abutted against the second pushing device; the side end of the main journal of the crankshaft is abutted against the first pushing device; the first pushing device and the second pushing device are both arranged on the rack; the first pushing device and the second pushing device are identical in structure and respectively comprise a through hole formed in the rack, a pushing shaft is arranged in the through hole, a strip-shaped groove is formed in the lower end of the pushing shaft, and a radial pin shaft is arranged below the through hole and inserted into the strip-shaped groove; a screw hole is arranged in the axis direction of the push shaft, and the screw rod is matched with the screw hole; the tail end of the lead screw is fixed with the hand wheel; the lead screw is fixed in the through hole through a bearing. The utility model has the advantages that: the adjustment is convenient, simultaneously, guarantees that the bent axle main journal is supported by the bracket all the time, and can not take place the skew because of gravity causes.
Description
Technical Field
The utility model relates to the field of machinery, in particular to an auxiliary machining device for a main journal of a crankshaft.
Background
When a machine tool is used for machining a main journal of a crankshaft, the conventional device for adjusting the main journal of the crankshaft enables the main journal of the crankshaft to jump to an ideal state by adjusting upper and lower supporting claws. Because the upper and lower support claws are difficult to adjust, especially when aiming at a large crankshaft main shaft, the upper and lower support claws are influenced by gravity, and large deviation is caused by slight carelessness during adjustment, so that a crankshaft main journal is damaged.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model aims to provide a crankshaft main journal adjusting device, wherein a rack is fixed on a workbench and is in shaft connection with a rotating frame; one end of the rotary frame is connected with the bracket, and the upper part of the bracket is abutted against the lower end of the main journal of the crankshaft; the other end of the revolving frame is abutted against the second pushing device; the side end of the main journal of the crankshaft is abutted against the first pushing device; the first pushing device and the second pushing device are both arranged on the rack; the first pushing device and the second pushing device are identical in structure and respectively comprise a through hole formed in the rack, a pushing shaft is arranged in the through hole, a strip-shaped groove is formed in the lower end of the pushing shaft, and a radial pin shaft is arranged below the through hole and inserted into the strip-shaped groove; a screw hole is arranged in the axis direction of the push shaft, and the screw rod is matched with the screw hole; the tail end of the lead screw is fixed with the hand wheel; the lead screw is fixed in the through hole through a bearing.
A trapezoidal groove is arranged below the frame and clamped on a trapezoidal step on the workbench; one end of the frame is provided with a pressing plate, and the pressing plate is buckled on the side surface of the trapezoidal step through a screw; the other end of the rack is provided with a hanging seat, and the hanging seat is fixed on the workbench through a bolt.
And an oil filling hole is arranged in the radial direction of the through hole.
And a gasket is arranged at the top end of the push shaft.
The side, close to the rotary frame, of the bracket is provided with a concave-convex groove, the side, corresponding to the rotary frame, of the bracket is also provided with a groove, and the concave-convex grooves of the two workpieces are fixed into a whole through bolts after corresponding; a gasket is arranged above the bracket.
The utility model has the advantages that: the adjustment is convenient, simultaneously, guarantees that the bent axle main journal is supported by the bracket all the time, and can not take place the skew because of gravity causes.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the pushing device.
Detailed Description
The utility model is described in detail below with reference to the accompanying drawings, as shown in the figures, a frame 2 is fixed on a workbench 1, and the frame is connected with a revolving frame 4 through a shaft 3; one end of the revolving frame 4 is connected with a bracket 6, and the upper part of the bracket is abutted against the lower end of a crankshaft main journal 8; the other end of the revolving frame 4 is abutted with a second pushing device 5; the side end of the crankshaft main journal is abutted against the first pushing device 7; the first pushing device and the second pushing device are both arranged on the rack; the first pushing device and the second pushing device are identical in structure and respectively comprise a through hole 9 formed in the rack, a pushing shaft 10 is arranged in the through hole, a strip-shaped groove 11 is formed in the lower end of the pushing shaft, a radial pin shaft 12 is arranged below the through hole and is inserted into the strip-shaped groove 11, and the structure ensures that the pushing shaft can slide back and forth in the through hole but cannot rotate; a screw hole 13 is arranged in the axis direction of the push shaft, and a screw rod 14 is matched with the screw hole; the tail end of the screw rod is fixed with a hand wheel 15; when the hand wheel drives the screw rod to rotate, the push shaft is driven to slide in the through hole, and the position of the front end of the push shaft is adjusted; preferably, the lead screw is fixed in the through hole by a bearing.
A trapezoidal groove is arranged below the frame and clamped on a trapezoidal step on the workbench; a pressing plate 20 is arranged at one end of the frame and buckled on the side surface of the trapezoidal step through a screw; the other end of the frame is provided with a hanging seat 19 which is fixed on the workbench through bolts.
For better lubrication, the through holes are provided with oil holes 17 in the radial direction.
To protect the surface of the main journal of the crankshaft, the top end of the push shaft is provided with a gasket 18.
In order to prevent sliding, one side of the bracket, which is close to the rotary frame, is provided with a concave-convex groove 21, one side of the rotary frame, which corresponds to the concave-convex groove, is also provided with a groove, and the concave-convex grooves of the two workpieces are fixed into a whole by bolts after corresponding to each other; a gasket is arranged above the bracket.
When the utility model is used:
1. wiping the journal of the crankshaft to be processed, and placing the crankshaft on a machine tool to be positioned and clamped by using the centers at two sides;
2. the crankshaft main journal adjusting device is adjusted to a proper position, and the pressing plate is pressed on the machine tool through the screw
3. And rotating a hand wheel of the second pushing device to drive the push shaft to move back and forth, and pushing the rotary frame to rotate by the push shaft so as to adjust the height of the main journal of the crankshaft to a proper position.
4. And rotating a hand wheel of the first pushing device to adjust the crankshaft main journal to a proper position in the horizontal direction.
The crankshaft main journal adjusting device is low in cost and high in efficiency, and has a remarkable effect of solving the problem of crankshaft main journal jumping.
Claims (5)
1. The utility model provides a bent axle main journal adjusting device which characterized in that: a rack is fixed on the workbench and is in shaft connection with the revolving frame; one end of the rotary frame is connected with the bracket, and the upper part of the bracket is abutted against the lower end of the main journal of the crankshaft; the other end of the revolving frame is abutted against the second pushing device; the side end of the main journal of the crankshaft is abutted against the first pushing device; the first pushing device and the second pushing device are both arranged on the rack; the first pushing device and the second pushing device are identical in structure and respectively comprise a through hole formed in the rack, a pushing shaft is arranged in the through hole, a strip-shaped groove is formed in the lower end of the pushing shaft, and a radial pin shaft is arranged below the through hole and inserted into the strip-shaped groove; a screw hole is arranged in the axis direction of the push shaft, and the screw rod is matched with the screw hole; the tail end of the lead screw is fixed with the hand wheel; the lead screw is fixed in the through hole through a bearing.
2. The crankshaft main journal adjustment device of claim 1, wherein: a trapezoidal groove is arranged below the frame and clamped on a trapezoidal step on the workbench; one end of the frame is provided with a pressing plate, and the pressing plate is buckled on the side surface of the trapezoidal step through a screw; the other end of the rack is provided with a hanging seat, and the hanging seat is fixed on the workbench through a bolt.
3. The crankshaft main journal adjustment device of claim 1, wherein: and an oil filling hole is arranged in the radial direction of the through hole.
4. The crankshaft main journal adjustment device of claim 1, wherein: and a gasket is arranged at the top end of the push shaft.
5. The crankshaft main journal adjustment device of claim 1, wherein: the side, close to the rotary frame, of the bracket is provided with a concave-convex groove, the side, corresponding to the rotary frame, of the bracket is also provided with a groove, and the concave-convex grooves of the two workpieces are fixed into a whole through bolts after corresponding; a gasket is arranged above the bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122258619.0U CN215824281U (en) | 2021-09-17 | 2021-09-17 | Crankshaft main journal adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122258619.0U CN215824281U (en) | 2021-09-17 | 2021-09-17 | Crankshaft main journal adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215824281U true CN215824281U (en) | 2022-02-15 |
Family
ID=80200162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122258619.0U Active CN215824281U (en) | 2021-09-17 | 2021-09-17 | Crankshaft main journal adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215824281U (en) |
-
2021
- 2021-09-17 CN CN202122258619.0U patent/CN215824281U/en active Active
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