CN221055697U - Device for detecting center distance between holes at two ends of connecting rod - Google Patents
Device for detecting center distance between holes at two ends of connecting rod Download PDFInfo
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- CN221055697U CN221055697U CN202322567403.1U CN202322567403U CN221055697U CN 221055697 U CN221055697 U CN 221055697U CN 202322567403 U CN202322567403 U CN 202322567403U CN 221055697 U CN221055697 U CN 221055697U
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- frame
- connecting rod
- screw rod
- rod
- bidirectional screw
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a device for detecting center distances of holes at two ends of a connecting rod, which comprises a first frame, two groups of movable inner frames which are respectively and movably arranged at two ends in the first frame, a first bidirectional screw rod which is rotatably arranged in the movable inner frame, a baffle block which is movably sleeved on the outer wall of the first bidirectional screw rod, two groups of first movable blocks which are respectively and spirally sleeved at two ends of the outer wall of the first bidirectional screw rod and are slidably arranged in the movable inner frame, a contact rod arranged at the bottom of the first movable block, an indicator arranged at the center of one side of the baffle block and a scale plate which is arranged below the indicator and is fixed on the first frame; and two groups of movable inner frames are respectively and rotatably connected with adjusting screws on one sides of the movable inner frames opposite to each other. The utility model carries out fine adjustment by rotating the two-way screw rod I and the adjusting screw rod I until the two contact rods are respectively attached to the two inner walls of the end hole of the connecting rod, then the indicator is determined to be positioned at the center of the end hole of the connecting rod, and then the center distance between the two end holes of the connecting rod is determined.
Description
Technical Field
The utility model relates to the technical field of connecting rod measuring devices, in particular to a device for detecting center distances of holes at two ends of a connecting rod.
Background
The connecting rod is a rod piece which transmits motion and force by virtue of a driving piece and a driven piece in the diesel engine, is a component for connecting the motion of a piston and a crankshaft, is an important part in the diesel engine, bears strong impact and dynamic stress in operation, bears dynamic load which changes suddenly, and determines the overall performance of the diesel engine according to the quality of the connecting rod.
The two ends of the connecting rod body are respectively a big end and a small end, the big end of the connecting rod is provided with a connecting rod big end hole, the small end of the connecting rod is provided with a connecting rod small end hole, and the connecting rod small end is connected with the corresponding part through the connecting rod end hole; the center distance between the big end hole and the small end hole in the connecting rod body is an important parameter, detection is needed before delivery, at present, a ruler tool is manually adopted when the center distance between the two end holes of the connecting rod is detected, but the center of the two end holes of the connecting rod cannot be accurately positioned by the traditional ruler tool, and most of the traditional ruler tool is judged by means of manual experience, so that the measured center distance between the two end holes of the connecting rod is not accurate enough, and therefore, a device for detecting the center distance between the two end holes of the connecting rod is provided.
Disclosure of utility model
The utility model aims to provide a device for detecting the center distance of holes at two ends of a connecting rod, so as to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The device for detecting the center distance of the holes at the two ends of the connecting rod comprises a first frame, two groups of movable inner frames which are respectively and movably arranged at the two ends in the first frame, a first bidirectional screw rod which is rotatably arranged in the movable inner frame, a baffle block which is movably sleeved on the outer wall of the first bidirectional screw rod and is fixed at the center of the inner cavity of the movable inner frame, two groups of first movable blocks which are respectively and spirally sleeved at the two ends of the outer wall of the bidirectional screw rod and are slidably arranged in the movable inner frame, a contact rod which is arranged at the bottom of the first movable block and is used for contacting with the inner wall of the hole at the end part of the connecting rod, an indicator which is arranged at the center of one side of the baffle block, and a scale plate which is arranged below the indicator, extends along the length direction of the first frame and is fixed on the first frame;
two groups of movable inner frames are respectively and rotatably connected with adjusting screws on opposite sides, and one opposite ends of the two groups of adjusting screws penetrate through two ends of the first frame in a threaded manner and are connected with a hand wheel.
The further improvement is that one end of the inner cavity of the movable inner frame is fixedly provided with a hollow seat, the hollow seat is movably sleeved at one end of the first bidirectional screw rod, the hollow seat is inserted with a driving rod piece, and one end of the driving rod piece extends into the inner cavity of the hollow seat and is in transmission connection with one end of the first bidirectional screw rod, which is positioned in the hollow seat, through a bevel gear set.
The further improvement is that an auxiliary positioning mechanism for positioning the rod body of the connecting rod is arranged in the center of one side of the frame, which is far away from the scale plate.
The auxiliary positioning mechanism comprises a frame II which is arranged on the frame I and is vertical to the frame I, a bidirectional screw rod II which is rotatably arranged in the frame II, and two groups of positioning plates which are slidably arranged on the frame II and are respectively sleeved at two ends of the outer wall of the bidirectional screw rod II;
one end of the second bidirectional screw rod movably penetrates through one side of the second frame and is connected with a hand wheel.
The further improvement is that the two ends of one side of the frame, which faces the contact rod, are provided with supporting frames.
Compared with the prior art, the utility model has the beneficial effects that:
The utility model is provided with the movable inner frame, the two-way screw rod I, the movable block I, the contact rods and the adjusting screw rod, the two contact rods on the movable inner frame are positioned in the holes at the end parts of the connecting rod, and then the two contact rods are finely adjusted by rotating the two-way screw rod I and the adjusting screw rod until the two contact rods are respectively attached to the two inner walls of the holes at the end parts of the connecting rod, at the moment, the indicator is positioned at the center of the holes at the end parts of the connecting rod, and then the center distance between the holes at the two ends of the connecting rod can be determined by observing the values of the scale plates indicated by the indicator.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a movable inner frame according to the present utility model;
fig. 3 is a schematic structural diagram of an auxiliary positioning mechanism in the present utility model.
In the figure: 1. a first frame; 2. a support frame; 3. moving the inner frame; 4. a bidirectional screw I; 5. a driving rod piece; 6. a first moving block; 7. a contact lever; 8. an indicator; 9. adjusting a screw; 10. a scale plate; 11. a second frame; 12. a two-way screw rod II; 13. and (5) positioning the plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1-2, a device for detecting center distance of holes at two ends of a connecting rod comprises a first frame 1, two groups of movable inner frames 3 which are respectively movably arranged at two ends in the first frame 1, a bidirectional screw rod 4 which is rotatably arranged in the movable inner frame 3, a baffle block which is movably sleeved on the outer wall of the bidirectional screw rod 4 and is fixed at the center of an inner cavity of the movable inner frame 3, two groups of movable blocks 6 which are respectively sleeved at two ends of the outer wall of the bidirectional screw rod 4 and are slidably arranged in the movable inner frame 3, a contact rod 7 which is arranged at the bottom of the movable block 6 and is used for contacting with the inner wall of the hole at the end part of the connecting rod, an indicator 8 which is arranged at the center of one side of the baffle block, and a scale plate 10 which is arranged below the indicator 8, extends along the length direction of the first frame 1 and is fixed on the first frame 1;
The opposite sides of the two groups of movable inner frames 3 are respectively and rotatably connected with adjusting screws 9, and the opposite ends of the two groups of adjusting screws 9 respectively penetrate through the two ends of the first frame 1 in a threaded manner and are connected with hand wheels.
The specific measurement steps are as follows: when the movable inner frame 3 is used, the contact rods 7 on the two groups of movable inner frames 3 are respectively positioned in the two end holes of the connecting rod, the first two-way screw rod 4 is firstly adjusted, the first two groups of movable blocks 6 are mutually moved away to drive the contact rods 7 to move towards the inner wall of the connecting rod hole, meanwhile, the adjusting screw rod 9 is rotated to finely adjust the position of the movable inner frame 3 until the two contact rods 7 on the movable inner frame 3 are respectively contacted with the two ends of the inner wall of the corresponding connecting rod hole, at the moment, the indicator 8 on the baffle block at the center of the movable inner frame 3 is positioned at the center of the connecting rod hole, and then the center distance of the two end holes of the connecting rod can be obtained by observing the scales on the scale plates 10 corresponding to the indicator 8 on the two movable inner frames 3.
As a preferred embodiment, one end of the inner cavity of the movable inner frame 3 of the embodiment is fixedly provided with a hollow seat, the hollow seat is movably sleeved at one end of the bi-directional screw rod one 4, a driving rod piece 5 is inserted on the hollow seat, one end of the driving rod piece 5 stretches into the inner cavity of the hollow seat and is in transmission connection with one end of the bi-directional screw rod one 4 in the hollow seat through a bevel gear set, the bevel gear set is two sets of bevel gears meshed with each other, and the driving rod piece 5 drives the bi-directional screw rod one 4 to rotate through the bevel gear set by rotating the driving rod piece 5.
Referring to fig. 3, as a preferred embodiment, an auxiliary positioning mechanism for positioning the rod body of the connecting rod is arranged at the center of one side of the first frame 1 far away from the scale plate 10. The connecting rod is positioned by the auxiliary positioning mechanism so that the connecting rod does not move along the width direction of the first frame 1.
As an preference, the auxiliary positioning mechanism of the embodiment comprises a frame two 11 arranged on the frame one 1 and vertical to the frame one 1, a bidirectional screw rod two 12 rotatably arranged in the frame two 11, and two groups of positioning plates 13 slidably arranged on the frame two 11 and respectively sleeved at two ends of the outer wall of the bidirectional screw rod two 12 in a threaded manner;
one end of the second bidirectional screw rod 12 movably penetrates through one side of the second frame 11 and is connected with a hand wheel, the hand wheel is rotated to drive the second bidirectional screw rod 12, the second bidirectional screw rod 12 drives the positioning plate 13 to be in contact with the rod body of the connecting rod, and the connecting rod is limited to move.
Preferably, two ends of one side of the first frame 1, which faces the contact rod 7, are provided with supporting frames 2, so that a certain distance exists between the first frame 1 and a connecting rod to be detected, and operation measurement is convenient and better.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a device for detecting connecting rod both ends hole centre-to-centre spacing, includes frame one (1), its characterized in that: the device further comprises two groups of movable inner frames (3) which are respectively and movably arranged at two ends in the first frame (1), a first bidirectional screw rod (4) which is rotatably arranged in the first movable inner frame (3), a baffle block which is movably sleeved on the outer wall of the first bidirectional screw rod (4) and is fixed at the center of the inner cavity of the first movable inner frame (3), two groups of first movable blocks (6) which are respectively and spirally sleeved at two ends of the outer wall of the first bidirectional screw rod (4) and are slidably arranged in the first movable inner frame (3), a contact rod (7) which is arranged at the bottom of the first movable block (6) and is used for contacting with the inner wall of a connecting rod end hole, an indicator (8) which is arranged at the center of one side of the baffle block, and a scale plate (10) which is arranged below the indicator (8) and extends along the length direction of the first frame (1) and is fixed on the first frame (1);
Two groups of movable inner frames (3) are respectively and rotatably connected with adjusting screws (9) on one sides opposite to each other, and one ends of the two groups of adjusting screws (9) opposite to each other penetrate through two ends of the first frame (1) in a threaded manner respectively and are connected with a hand wheel.
2. The device for detecting the center distance between two end holes of a connecting rod according to claim 1, wherein: the inner cavity of the movable inner frame (3) is fixedly provided with a hollow seat, the hollow seat is movably sleeved at one end of the first bidirectional screw rod (4), a driving rod piece (5) is inserted on the hollow seat, and one end of the driving rod piece (5) stretches into the inner cavity of the hollow seat and is in transmission connection with one end of the first bidirectional screw rod (4) in the hollow seat through a bevel gear set.
3. The device for detecting the center distance between two end holes of a connecting rod according to claim 1, wherein: an auxiliary positioning mechanism for positioning the rod body of the connecting rod is arranged in the center of one side of the first frame (1) far away from the scale plate (10).
4. A device for detecting center distance between two end holes of a connecting rod according to claim 3, wherein: the auxiliary positioning mechanism comprises a frame II (11) which is arranged on the frame I (1) and is vertical to the frame I (1), a bidirectional screw rod II (12) which is rotatably arranged in the frame II (11), and two groups of positioning plates (13) which are slidably arranged on the frame II (11) and are respectively sleeved at two ends of the outer wall of the bidirectional screw rod II (12) in a threaded manner;
One end of the two-way screw rod II (12) movably penetrates through one side of the frame II (11) and is connected with a hand wheel.
5. The device for detecting the center distance between two end holes of a connecting rod according to claim 1, wherein: the two ends of one side of the first frame (1) facing the contact rod (7) are provided with supporting frames (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322567403.1U CN221055697U (en) | 2023-09-21 | 2023-09-21 | Device for detecting center distance between holes at two ends of connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322567403.1U CN221055697U (en) | 2023-09-21 | 2023-09-21 | Device for detecting center distance between holes at two ends of connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221055697U true CN221055697U (en) | 2024-05-31 |
Family
ID=91200380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322567403.1U Active CN221055697U (en) | 2023-09-21 | 2023-09-21 | Device for detecting center distance between holes at two ends of connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221055697U (en) |
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2023
- 2023-09-21 CN CN202322567403.1U patent/CN221055697U/en active Active
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