A semi-circular bearing twist measuring device

Abstract

The application relates to the technical field of bearings, in particular to a semi-circular bearing torsion measuring device which comprises an axial positioning assembly, a radial positioning assembly, a first measuring assembly and a second measuring assembly, the first measuring assembly comprises at least two first elastic measuring pieces arranged axially along the side surface and a first linear reciprocating driving mechanism for releasing the first elastic measuring pieces, and the second measuring assembly comprises at least two second elastic measuring pieces arranged axially along the end surface and a second linear reciprocating driving mechanism for releasing the second elastic measuring pieces; the semi-circular bearing to be measured is fixed through the axial positioning assembly and the radial positioning assembly, the first linear reciprocating driving mechanism and the second linear reciprocating driving mechanism are used for releasing the first elastic measuring pieces and the second elastic measuring pieces respectively, so that the two elastic measuring pieces are elastically reset and contact the semi-circular bearing to measure, the detection precision caused by bearing deformation can be avoided, and the service life of the elastic measuring pieces is prolonged.

Description

Technical Field

[0001] This invention relates to the field of bearing technology, and in particular to a device for measuring the torsion of a semi-circular bearing. Background Technology

[0002] After the semi-circular bearing is processed, it is generally necessary to perform torsion measurement. The measurement indicators include the height difference of the four apex corners at both ends of the bearing, the difference in the dimensions of the two horizontal lines formed by the four apex corners, and the difference in the dimensions of the two diagonals. However, due to the non-closed structure of the bearing, it is difficult to position it during measurement. Moreover, in the existing technology, linear drive mechanisms such as cylinders or oil cylinders are usually used to directly drive the probe to contact the bearing for measurement. This direct pressure method has a large force, which can cause the probe to hit the bearing, affecting the bearing measurement accuracy and damaging the probe. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: in order to solve the problem that it is difficult to position the semi-circular bearing during the measurement of torsion in the prior art, and that the linear drive mechanism such as the cylinder or oil cylinder is usually used to directly drive the probe to contact the bearing for measurement. This direct pressure method has a large force, which will cause the probe to hit the bearing, affecting the bearing measurement accuracy and damaging the probe. The present invention provides a semi-circular bearing torsion measurement device.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a torsion measuring device for a semi-circular bearing, wherein the semi-circular bearing includes a bearing body, and the two ends of the bearing body along its circumference are torsion measuring ends for measurement by the torsion measuring device, each torsion measuring end having an end face and a side face, and the torsion measuring device includes:

[0005] An axial positioning assembly is used to axially position the semi-circular bearing;

[0006] A radial positioning assembly includes a radial positioning seat for supporting the semi-circular bearing and a radial pressing mechanism for pressing the semi-circular bearing to confine it on the radial positioning seat.

[0007] The first measuring component corresponds to the number of the torsion measuring ends, and each set of first measuring components includes at least two first elastic measuring elements arranged along the side axial direction and a first linear reciprocating drive mechanism for releasing the first elastic measuring elements to make them flexibly contact the side.

[0008] The second measuring component corresponds to the number of the torsion measuring ends, and each set of the second measuring components includes at least two second elastic measuring elements arranged axially along the end face and a second linear reciprocating drive mechanism for releasing the second elastic measuring elements to make them flexibly contact the end face.

[0009] Furthermore, each set of first measuring components includes two first elastic measuring elements correspondingly disposed at both ends of the side. The first elastic measuring elements in the two sets of first measuring components correspond one-to-one and are distributed in a rectangular shape.

[0010] Each set of second measuring components includes two second elastic measuring elements correspondingly disposed at both ends of the end face. The second elastic measuring elements in the two sets of second measuring components correspond one-to-one and are distributed in a rectangular shape.

[0011] Furthermore, the first elastic measuring member has a first blocking portion protruding radially, and the output end of the first linear reciprocating drive mechanism is fixed with a first abutting plate for abutting against the first blocking portion to cause the first elastic measuring member to contract.

[0012] The second elastic measuring element has a second blocking portion protruding radially, and the output end of the second linear reciprocating drive mechanism is fixed with a second abutment plate for abutting against the second blocking portion to cause the second elastic measuring element to contract.

[0013] Furthermore, both the first measuring head of the first elastic measuring element and the second measuring head of the second elastic measuring element have narrow head structures.

[0014] Furthermore, the axial positioning assembly includes an axial positioning seat, a push block, and an axial pressing mechanism for driving the push block to reciprocate along the axial direction of the semi-circular bearing to clamp the semi-circular bearing between the axial positioning seat and the push block.

[0015] Furthermore, the radial pressure application mechanism is a single-acting cylinder.

[0016] Furthermore, each torsion measuring end protrudes to form a lug, and the radial positioning seat has a slot for the lug to engage and a through slot for the second elastic measuring element to pass through.

[0017] Furthermore, the radial positioning assembly also includes a third linear reciprocating drive mechanism for driving the radial pressure mechanism to reciprocate along the axial direction of the semi-circular bearing.

[0018] Furthermore, multiple second elastic measuring elements in the two second measuring assemblies are released by the same second linear reciprocating drive mechanism.

[0019] Furthermore, the output end of the radial pressure mechanism is equipped with a pressure head, which is made of plastic.

[0020] The beneficial effects of the present invention are as follows: The present invention fixes the semi-circular bearing to be tested by means of an axial positioning component and a radial positioning component, and releases the first elastic measuring component and the second elastic measuring component by means of a first linear reciprocating drive mechanism and a second linear reciprocating drive mechanism respectively, so that the two elastically reset and come into contact with the semi-circular bearing for measurement. This can avoid the reduction in detection accuracy caused by bearing deformation and improve the service life of the elastic measuring component. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a three-dimensional schematic diagram from a first perspective of the present invention;

[0023] Figure 2 This is a three-dimensional schematic diagram from a second perspective of the present invention;

[0024] Figure 3 This is the front view of the present invention;

[0025] Figure 4 This is a three-dimensional schematic diagram of the cooperation between the first measuring component and the second measuring component of the present invention;

[0026] Figure 5 This is a front view of the first measuring component and the second measuring component of the present invention in cooperation;

[0027] Figure 6 This is a three-dimensional schematic diagram of the first measuring component of the present invention;

[0028] Figure 7 This is a front view of the first measuring component of the present invention;

[0029] Figure 8 This is a distribution diagram of the four first measurement components of the present invention;

[0030] Figure 9 This is a three-dimensional schematic diagram of the second measuring component of the present invention;

[0031] Figure 10 This is a front view of the second measuring component of the present invention;

[0032] Figure 11 This is a three-dimensional schematic diagram of a semi-circular bearing;

[0033] In the picture:

[0034] 1. Semi-circular bearing; 101. Bearing body; 102. Torsion measuring end; 1021. Side side; 1022. End face; 103. Lug;

[0035] 2. Axial positioning assembly; 201. Axial positioning seat; 202. Pushing block; 203. Axial pressure application mechanism;

[0036] 3. Radial positioning assembly; 301. Radial positioning seat; 3011. Slot; 3012. Through slot; 302. Radial pressure mechanism; 303. Pressure head; 304. Third linear reciprocating drive mechanism;

[0037] 4. First measuring component; 401. First elastic measuring element; 4011. First blocking part; 4012. First measuring head; 402. First linear reciprocating drive mechanism; 403. First abutment plate;

[0038] 5. Second measuring component; 501. Second elastic measuring element; 5011. Second blocking part; 5012. Second measuring head; 502. Second linear reciprocating drive mechanism; 503. Second abutment plate;

[0039] 6. Base. Detailed Implementation

[0040] The invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention in a schematic manner. Therefore, they only show the components relevant to the invention, and the orientations and references (e.g., up, down, left, right, etc.) are only used to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be limiting, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0041] like Figures 1-3 As shown, a torsion measuring device for a semi-circular bearing 1 is disclosed. The semi-circular bearing 1 includes a bearing body 101, which is semi-circular in shape. Both ends of the bearing body 101 along its circumference are torsion measuring ends 102 for measurement by the torsion measuring device. Each torsion measuring end 102 has an end face 1022 and a side face 1021, as shown. Figure 11 As shown, the torsion measuring device includes a base 6, on which the following are mounted:

[0042] Axial positioning component 2 is used to axially position the semi-circular bearing 1.

[0043] The radial positioning assembly 3 includes a radial positioning seat 301 for supporting the semi-circular bearing 1 and a radial pressing mechanism 302 for applying pressure to the semi-circular bearing 1 to confine it on the radial positioning seat 301. During measurement, the semi-circular bearing 1 is in an inverted shape, that is, its opening faces downward. The radial positioning seat 301 supports the semi-circular bearing 1 below, and the radial pressing mechanism 302 applies pressure to the semi-circular bearing 1 from above. The two work together to clamp the semi-circular bearing 1 between them. The pressure applied by the radial pressing mechanism 302 is relatively small, approximately 4-50N, which only needs to ensure that the semi-circular bearing 1 does not float upward during measurement.

[0044] The first measuring component 4, corresponding in number to the torsion measuring ends 102 and located on the side of the semi-circular bearing 1, measures the side surface 1021. Each first measuring component 4 includes at least two first elastic measuring elements 401 arranged axially along the side surface 1021 and a first linear reciprocating drive mechanism 402 for releasing the first elastic measuring elements 401 to make them flexibly contact the side surface 1021. The first elastic measuring element 401 is an electrical test pen. When the first linear reciprocating drive mechanism 402 moves away from the semi-circular bearing 1, it causes the first elastic measuring element 401 to contract and store energy and move away from the semi-circular bearing 1. When the first linear reciprocating drive mechanism 402 moves towards the semi-circular bearing 1, the first elastic measuring element 401 is released under elastic action and contacts the semi-circular bearing 1 for measurement. In this structure, the first linear reciprocating drive mechanism 402 indirectly drives the first elastic measuring element 401, rather than directly pushing it to press against the semi-circular bearing 1. This force is smaller, which can avoid the reduction in detection progress caused by bearing deformation during the process and improve the service life of the first elastic measuring element 401.

[0045] The second measuring component 5 corresponds to the number of the torsion measuring ends 102 and is located below the semi-circular bearing 1 for measuring the end face 1022. Each second measuring component 5 includes at least two second elastic measuring elements 501 arranged axially along the end face 1022 and a second linear reciprocating drive mechanism 502 for releasing the second elastic measuring elements 501 to make them flexibly contact the end face 1022. The first elastic measuring element 401 is an electric test pen. When the second linear reciprocating drive mechanism 502 moves away from the semi-circular bearing 1, it drives the second elastic measuring elements 501 to contract and store energy and move away from the semi-circular bearing 1. When the second linear reciprocating drive mechanism 502 moves towards the semi-circular bearing 1, the second elastic measuring elements 501 are released under elastic action and contact the semi-circular bearing 1 for measurement. In this structure, the second linear reciprocating drive mechanism 502 indirectly drives the second elastic measuring elements 501 instead of directly pushing them against the semi-circular bearing 1. The force is smaller, which can avoid the reduction in detection progress caused by bearing deformation in the process and improve the service life of the second elastic measuring elements 501.

[0046] During measurement, the semi-circular bearing 1 to be measured is first placed on the radial positioning seat 301. After the axial positioning assembly 2 axially positions it, the radial pressing mechanism 302 presses down to clamp the semi-circular bearing 1 between itself and the radial positioning seat 301. Then, the second linear reciprocating drive mechanism 502 moves upward, releasing the second elastic measuring element 501 from its restriction. The second elastic measuring element 501 contacts the end face 1022 of the torsion measuring end 102 and its height is measured. Then, the first linear reciprocating drive mechanism 402 moves towards the semi-circular bearing 1, releasing the first elastic measuring element from its restriction. The restriction of 401 is released, and the first elastic measuring element 401 contacts the side 1021 of the torsion measuring end 102 and measures its position. In this application, the semi-circular bearing 1 to be tested is first fixed by the axial positioning component 2 and the radial positioning component 3, and the first elastic measuring element 401 and the second elastic measuring element 501 are released by the first linear reciprocating drive structure and the second linear reciprocating drive mechanism 502 respectively, so that the two elastically reset and flexibly contact the semi-circular bearing 1 for measurement. This can avoid the reduction in detection accuracy caused by bearing deformation and improve the service life of the elastic measuring element.

[0047] In some examples, such as Figures 6-8 As shown, each set of first measuring components 4 includes two first elastic measuring elements 401 correspondingly disposed at both ends of the side 1021. The first elastic measuring elements 401 in the two sets of first measuring components 4 correspond one-to-one and are distributed in a rectangular shape, namely 401a, 401b, 401c, and 401d. The dimension measured by 401a and 401c is H1, and the dimension measured by 401b and 401d is H2. The difference between H1 and H2 is the linear dimension difference in the horizontal direction, which is ≤0.5. The dimension measured by 401a and 401d is H3, and the dimension measured by 401b and 401c is H4. The difference between H3 and H4 is the diagonal difference, which is ≤0.55.

[0048] like Figure 9 and Figure 10 As shown, each group of second measuring components 5 includes two second elastic measuring elements 501 correspondingly disposed at both ends of the end face 1022. The second elastic measuring elements 501 in the two groups of second measuring components 5 correspond one-to-one and are distributed in a rectangular shape. The difference in extreme height measured by the four second elastic measuring elements 501 is ≤0.2.

[0049] In some examples, such as Figures 4-7As shown, the first elastic measuring member 401 has a first blocking part 4011 protruding radially. The output end of the first linear reciprocating drive mechanism 402 is fixed with a first abutting plate 403 for abutting against the first blocking part 4011 to cause the first elastic measuring member 401 to contract. The first linear reciprocating drive mechanism 402 can be, but is not limited to, a cylinder, an electric cylinder, etc. The first abutting plate 403 is located between the first blocking part 4011 and the semi-circular bearing 1, and the bottom of the first abutting plate 403 has a through groove for part of the first elastic measuring member 401 to extend out. The through groove has a U-shaped structure, thereby increasing the working area with the first blocking part 4011.

[0050] like Figure 9 and Figure 10 As shown, the second elastic measuring member 501 has a second blocking portion 5011 protruding radially. The output end of the second linear reciprocating drive mechanism 502 is fixed with a second abutting plate 503 for abutting against the second blocking portion 5011 to retract the second elastic measuring member 501. The second linear reciprocating drive mechanism 502 can be, but is not limited to, a cylinder, an electric cylinder, etc. The second abutting plate 503 is located between the second blocking portion 5011 and the semi-circular bearing 1, and a through groove is formed at the bottom of the second abutting plate 503 for part of the second elastic measuring member 501 to extend out. The through groove has a U-shaped structure, thereby increasing the working area with the second blocking portion 5011.

[0051] In some examples, such as Figure 4 and Figure 5 As shown, both the first measuring head 4012 of the first elastic measuring member 401 and the second measuring head 5012 of the second elastic measuring member 501 have narrow head structures.

[0052] In some examples, such as Figure 1 and Figure 2 As shown, the axial positioning assembly 2 includes an axial positioning seat 201, a push block 202, and an axial pressing mechanism 203 for driving the push block 202 to reciprocate along the axial direction of the semi-circular bearing 1 to clamp the semi-circular bearing 1 between the axial positioning seat 201 and the push block 202. The axial positioning seat 201 is fixedly set and has two support arms extending in the direction of the semi-circular bearing 1 to abut against the semi-circular bearing 1. The push block 202 is movable.

[0053] In some examples, the radial pressure mechanism 302 is a single-acting cylinder. The driving force of the cylinder is partially offset by the spring. The force is small and the stroke is short, so it will not cause deviation in the measurement process. The second elastic measuring element 501 will generate a thrust of 4N-5N on the bearing during the measurement process, so that the bearing has an upward tendency. The single-acting cylinder can block the upward tendency of the bearing, and the blocking force is small. It only has a straightening effect and will not cause the bearing to deform.

[0054] In some examples, such as Figure 11 As shown, each torsion measuring end 102 has a protruding lug 103. The radial positioning seat 301 has a slot 3011 for the lug 103 to be inserted and a through slot 3012 for the second elastic measuring member 501 to pass through. During measurement, the lug 103 is first inserted into the slot 3011 to initially position the bearing. Then, it is positioned by the axial positioning component 2 and the radial positioning component 3. Next, the second elastic measuring member 501 passes through the through slot 3012 to contact and measure the end face 1022 of the torsion measuring end 102.

[0055] In some examples, such as Figure 1 and Figure 2 As shown, the radial positioning component 3 also includes a third linear reciprocating drive mechanism 304 for driving the radial pressure mechanism 302 to reciprocate along the axial direction of the semi-circular bearing 1. The third linear reciprocating drive mechanism 304 may be, but is not limited to, a cylinder or an electric cylinder, etc., and is used to adjust the axial position of the radial pressure mechanism 302.

[0056] In some examples, such as Figure 9 and Figure 10 As shown, multiple second elastic measuring elements 501 in the two second measuring components 5 are released by the same second linear reciprocating drive mechanism 502, thereby enabling the synchronous release of multiple second elastic measuring elements 501 and improving detection accuracy.

[0057] In some examples, such as Figure 3 As shown, the output end of the radial pressure mechanism 302 is equipped with a pressure head 303. The pressure head 303 is made of plastic and will not cause damage to the semi-circular bearing 1 when it comes into contact with it.

[0058] Working principle:

[0059] During measurement, the semi-circular bearing 1 to be measured is first placed on the radial positioning seat 301, and the lug 103 is inserted into the slot 3011 to initially position the bearing. Then, the axial pressing mechanism 203 drives the pushing block 202 to move towards the bearing and clamps the bearing between it and the axial positioning seat 201 for axial positioning. The radial pressing mechanism 302 presses down to clamp the semi-circular bearing 1 between it and the radial positioning seat 301. Then, the second linear reciprocating drive mechanism 502 moves upward, the second abutment plate 503 releases the restriction on the second blocking part 5011, and the second elastic measuring element 501 is released. It contacts the end face 1022 of the torsion measuring end 102 and measures the height of the four apex corners. Then, the first linear reciprocating drive mechanism 402 moves towards the bearing, the first abutment plate 403 releases the restriction on the first blocking part 4011, and the first elastic measuring element 401 is released. It contacts the side 1021 of the torsion measuring end 102 and measures its position.

[0060] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A torsion measuring device for a semi-circular bearing, wherein the semi-circular bearing (1) includes a bearing body (101), and the two ends of the bearing body (101) along its circumference are torsion measuring ends (102) for measurement by the torsion measuring device, each torsion measuring end (102) having an end face (1022) and a side face (1021), characterized in that: The torsion measuring device includes: Axial positioning assembly (2) is used to axially position the semi-circular bearing (1); The radial positioning assembly (3) includes a radial positioning seat (301) for supporting the semi-circular bearing (1) and a radial pressing mechanism (302) for pressing the semi-circular bearing (1) to confine it on the radial positioning seat (301). The number of the first measuring components (4) corresponds to the number of the torsion measuring ends (102), and each set of first measuring components (4) includes at least two first elastic measuring elements (401) arranged along the axial direction of the side (1021) and a first linear reciprocating drive mechanism (402) for releasing the first elastic measuring elements (401) so that they flexibly contact the side (1021). The second measuring component (5) corresponds to the number of the torsion measuring ends (102), and each set of second measuring components (5) includes at least two second elastic measuring elements (501) arranged axially along the end face (1022) and a second linear reciprocating drive mechanism (502) for releasing the second elastic measuring elements (501) to make them flexibly contact the end face (1022).

2. The semi-circular bearing torsion measuring device according to claim 1, characterized in that: Each set of first measuring components (4) includes two first elastic measuring elements (401) correspondingly disposed at both ends of the side (1021). The first elastic measuring elements (401) in the two sets of first measuring components (4) correspond one-to-one and are distributed in a rectangular shape. Each set of second measuring components (5) includes two second elastic measuring elements (501) correspondingly disposed at both ends of the end face (1022). The second elastic measuring elements (501) in the two sets of second measuring components (5) correspond one-to-one and are distributed in a rectangular shape.

3. The semi-circular bearing torsion measuring device according to claim 1, characterized in that: The first elastic measuring member (401) has a first blocking portion (4011) protruding radially, and the output end of the first linear reciprocating drive mechanism (402) is fixed with a first abutting plate (403) for abutting against the first blocking portion (4011) to cause the first elastic measuring member (401) to contract. The second elastic measuring member (501) has a second blocking portion (5011) protruding radially, and the output end of the second linear reciprocating drive mechanism (502) is fixed with a second abutting plate (503) for abutting against the second blocking portion (5011) to cause the second elastic measuring member (501) to contract.

4. The semi-circular bearing torsion measuring device according to claim 1, characterized in that: Both the first measuring head (4012) of the first elastic measuring member (401) and the second measuring head (5012) of the second elastic measuring member (501) have narrow head structures.

5. The semi-circular bearing torsion measuring device according to claim 1, characterized in that: The axial positioning assembly (2) includes an axial positioning seat (201), a push block (202), and an axial pressing mechanism (203) for driving the push block (202) to reciprocate along the axial direction of the semi-circular bearing (1) to clamp the semi-circular bearing (1) between the axial positioning seat (201) and the push block (202).

6. The semi-circular bearing torsion measuring device according to claim 1, characterized in that: The radial pressure mechanism (302) is a single-acting cylinder.

7. The semi-circular bearing torsion measuring device according to claim 1, characterized in that: Each torsion measuring end (102) protrudes to form a lug (103), and the radial positioning seat (301) has a slot (3011) for the lug (103) to be engaged and a through slot (3012) for the second elastic measuring member (501) to pass through.

8. The semi-circular bearing torsion measuring device according to claim 1, characterized in that: The radial positioning assembly (3) also includes a third linear reciprocating drive mechanism (304) for driving the radial pressure mechanism (302) to reciprocate along the axial direction of the semi-circular bearing (1).

9. The semi-circular bearing torsion measuring device according to claim 1, characterized in that: Multiple second elastic measuring elements (501) in the two sets of second measuring components (5) are released by the same second linear reciprocating drive mechanism (502).

10. A semi-circular bearing torsion measuring device according to claim 1, characterized in that: The output end of the radial pressure mechanism (302) is equipped with a pressure head (303), which is made of plastic.

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