Special gauge for rolling bearing fit clearance measuring instrument

Abstract

The utility model relates to a special gauge for a rolling bearing matching clearance measuring instrument, which comprises a bottom plate, a left side plate, a right side plate, a left pull plate, a right pull plate, a left guide plate, a right guide plate, a left hand wheel, a right hand wheel, an upper guide rod, a lower guide rod, a left screw rod, a right screw rod, a left inner blocking clamping block, a right inner blocking clamping block, a dynamometer mounting plate and a dynamometer, the left side plate and the right side plate are perpendicularly connected to the upper surfaces of the left end and the right end of the bottom plate respectively, the upper guide rod and the lower guide rod are arranged in parallel and connected between the inner side of the left side plate and the inner side of the right side plate, and the left pull plate, the left guide plate, the right guide plate and the right pull plate are sequentially connected to the upper guide rod and the lower guide rod from left to right. The dynamometer mounting plate is respectively connected with the front side surfaces of the left guide plate and the right guide plate; and the left and right inner blocking clamping blocks are respectively mounted on the upper sides of the left and right ends of the dynamometer mounting plate. According to the utility model, the detection precision and efficiency are improved, the detection is more scientific and reasonable, and the metering performance of the rolling bearing matched clearance measuring instrument can be effectively ensured.

Description

Technical Field

[0001] The utility model relates to a special fixture for a measuring instrument, in particular to a special fixture for a rolling bearing mating clearance measuring instrument. Background Technique

[0002] A rolling bearing mating clearance measuring instrument is a special instrument used to measure the mating clearance of rolling bearings. The measurement accuracy of the rolling bearing mating clearance directly affects the installation and operation performance of the bearing in various equipment. To ensure the measurement accuracy, it is necessary to regularly check the rolling bearing mating clearance measuring instrument to timely detect possible errors in the rolling bearing mating clearance measuring instrument, so as to ensure that the measurement results can accurately reflect the actual clearance of the bearing and provide reliable data support for the installation and commissioning of the equipment. Checking the rolling bearing mating clearance measuring instrument mainly focuses on checking the measuring force and indication error. The measuring force affects the deformation degree of the bearing. If the measuring force is too large, it will cause excessive elastic deformation of the bearing, resulting in the measured clearance value being smaller than the actual value; if the measuring force is too small, it may not be able to place the inner and outer rings of the bearing in the correct measurement position, and the measurement result will also be inaccurate. By checking the measuring force and keeping it within a suitable range, it can ensure that the deformation amount of the bearing during measurement is within a negligible range, thus obtaining an accurate clearance measurement value. The indication error directly reflects the difference between the measurement result of the measuring instrument and the true value. If the measuring instrument has a large indication error, then the measured bearing clearance value cannot truly reflect the actual clearance situation of the bearing. By checking the indication error and calibrating and adjusting the measuring instrument, the indication error can be controlled within the allowable range, ensuring the reliability of the measurement results.

[0003] Currently, in the industry, for the measuring force, the rolling bearing mating clearance measuring instrument is fixed on a tooling, 50 kg and 30 kg weights are hung respectively below, and then by扳动 a special wrench to observe whether the 30 kg weight can be lifted after applying force, and the 50 kg weight is between being able to be lifted and not being able to be lifted. This method has a large detection error and requires two people to cooperate to complete, with low efficiency. There is no special fixture for detecting the indication error, and it can only be detected by checking the indicating table. If the indicating table is qualified, it is judged as qualified. This method cannot accurately reflect the comprehensive indication error of the measuring instrument. Summary of the Invention

[0004] The purpose of the utility model is to address the defects existing in the above-mentioned prior art and provide a special fixture for a rolling bearing mating clearance measuring instrument, which improves the detection accuracy and efficiency, makes the detection of the rolling bearing mating clearance measuring instrument more scientific and reasonable, and can effectively ensure the metrological performance of the rolling bearing mating clearance measuring instrument.

[0005] The technical solution adopted by this utility model to achieve the above objectives is as follows: a special gauge for rolling bearings and clearance measuring instruments, including a base plate, a left side plate, a right side plate, a left pull plate, a right pull plate, a left guide plate, a right guide plate, a left handwheel, a right handwheel, an upper guide rod, a lower guide rod, a left inner clamping block, a right inner clamping block, a force gauge mounting plate, and a force gauge. The left side plate and the right side plate are respectively vertically connected to the upper surfaces of the left and right ends of the base plate. The upper guide rod and the lower guide rod are arranged parallel to each other and connected between the inner sides of the left side plate and the inner sides of the right side plate. The left pull plate, the left guide plate, the right guide plate, and the right pull plate are connected to the upper guide rod and the lower guide rod in sequence from left to right. A left screw rod is connected between the left side plate and the left pull plate, and the left screw rod is simultaneously located on the upper guide rod. Between the rod and the lower guide rod, the left end of the left screw protrudes from the left side of the left side plate and connects to the left handwheel. When the left handwheel is rotated, the left pull plate moves left and right relative to the upper and lower guide rods under the drive of the left screw. The right side plate is connected to the right pull plate by a right screw, which is located between the upper and lower guide rods. The right end of the right screw protrudes from the right side of the right side plate and connects to the right handwheel. When the right handwheel is rotated, the right pull plate moves left and right relative to the upper and lower guide rods under the drive of the right screw. The force gauge mounting plate is connected to the front side of the left and right guide plates respectively. The left inner stop block and the right inner stop block are installed on the upper side of the left and right ends of the force gauge mounting plate respectively. The force gauge is installed on the side surface of the force gauge mounting plate that is opposite to the left and right guide plates.

[0006] A further technical solution of this utility model is: the base plate is a concave steel plate, and a force gauge probe clamping block is connected to the upper surface of the front right side of the base plate. A force gauge sleeve is provided at the upper end of the force gauge probe clamping block. When the force gauge is installed on the surface of the force gauge mounting plate, the probe of the force gauge can be positioned in the force gauge sleeve.

[0007] A further technical solution of this utility model is: a vertically upward extending indicator block is connected to the bottom plate on the right side of the force gauge probe clamp block, and a step for positioning the gauge block is provided on the inner side of the upper end of the indicator block.

[0008] This utility model, a special gauge for measuring the clearance of rolling bearings, has the following beneficial effects: By connecting left and right side plates to the left and right ends of the base plate, and connecting upper and lower guide rods to the inner sides of the left and right side plates, the left pull plate, left guide plate, right guide plate, and right pull plate are sequentially connected from left to right to the upper and lower guide rods. A left screw is connected between the left side plate and the left pull plate, and a right screw is connected between the right side plate and the right pull plate. A force gauge mounting plate is connected to the back of the left and right guide plates, and left and right inner clamping blocks are connected to the upper sides of the left and right ends of the force gauge mounting plate. This utility model uses a push-pull force gauge to detect the force value of a special wrench, which not only improves the accuracy of the detected force value but also improves the detection efficiency and reduces the labor intensity of the operator. This utility model can also detect the comprehensive error of the measuring instrument, making the detection of the measuring instrument more scientific and reasonable, effectively ensuring the metrological performance of the measuring instrument, and providing a guarantee for the accurate measurement of the clearance of rolling bearings.

[0009] The following description, in conjunction with the accompanying drawings and embodiments, further illustrates the special gauge for rolling bearing clearance measuring instruments of this utility model. Attached Figure Description

[0010] Figure 1 This is the front view of the special gauge for rolling bearing clearance measuring instrument of this utility model;

[0011] Figure 2 This is a top view of the special gauge for rolling bearing clearance measuring instrument of this utility model;

[0012] Figure 3 This is a perspective view of the special gauge for rolling bearing clearance measuring instrument of this utility model;

[0013] Figure 4 This is a schematic diagram of the structure of a rolling bearing and a clearance measuring instrument;

[0014] Figure 5 This is a schematic diagram of the structure of the rolling bearing of this utility model, combined with the special gauge of the clearance measuring instrument, for detecting and measuring force;

[0015] Figure 6 This is a schematic diagram of another direction of the structure for detecting and measuring force using the rolling bearing of this utility model in conjunction with the special gauge for the clearance measuring instrument;

[0016] Figure 7 This is a schematic diagram of the structure for detecting the indication error using the rolling bearing of this utility model in conjunction with the special gauge of the clearance measuring instrument;

[0017] Figure 8 This is a schematic diagram of another direction for detecting the indication error using the rolling bearing of this utility model in conjunction with the special gauge of the clearance measuring instrument;

[0018] Explanation of the reference numerals: 1-Base plate, 2-Left handwheel, 3-Left side plate, 4-Upper guide rod, 5-Left screw, 6-Lower guide rod, 7-Left pull plate, 8-Left inner stop block, 9-Left guide plate, 10-Force gauge mounting plate, 11-Right inner stop block, 12-Right guide plate, 13-Right pull plate, 14-Right side plate, 15-Indication stop block, 16-Right handwheel, 17-Force gauge, 18-Force gauge sleeve, 19-Force gauge probe clamp, 20-Right screw, 21-Force wrench, 22-Eccentric wheel handle, 23-Outer stop, 24-Spindle, 25-Inner stop, 26-Sliding sleeve, 27-Indicator. Detailed Implementation

[0019] like Figures 1 to 3As shown, this utility model relates to a special gauge for a rolling bearing clearance measuring instrument (hereinafter referred to as the "special gauge"), used to detect the indication error and measuring force of the rolling bearing clearance measuring instrument. The terms "up," "down," "left," "right," "front," and "back" used to describe orientation in this utility model refer to the direction of the bearing. Figure 1 , Figure 2 and Figure 3 Observe the orientation of this utility model.

[0020] like Figure 4 As shown, the rolling bearing clearance measuring instrument (hereinafter referred to as "clearance meter") includes a spindle 24, a sliding sleeve 26, an eccentric wheel handle 22, a force wrench 21, an outer stop 23, an inner stop 25, and an indicator 27. This clearance meter is an existing device, and its structure and principle will not be described in detail here.

[0021] like Figures 1 to 3As shown, the special inspection tool includes a base plate 1, a left side plate 3, a right side plate 14, a left pull plate 7, a right pull plate 13, a left guide plate 9, a right guide plate 12, a left handwheel 2, a right handwheel 16, an upper guide rod 4, a lower guide rod 6, a left inner stop block 8, a right inner stop block 11, a force gauge mounting plate 10, and a force gauge 17. The base plate 1 is a concave steel plate, with the left side plate 3 and the right side plate 14 vertically connected to the upper surfaces of the left and right ends of the base plate 1, respectively. The upper guide rod 4 and the lower guide rod 6 are arranged parallel to each other and connected between the inner sides of the left side plate 3 and the right side plate 14, and the left side plate 3 and the right side plate 14 are used to support the upper guide rod 4 and the lower guide rod 6. Left pull plate 7, left guide plate 9, right guide plate 12, and right pull plate 13 are connected sequentially from left to right to the upper guide rod 4 and lower guide rod 6. Each of these plates has two vertically arranged through holes for the upper guide rod 4 and lower guide rod 6 to pass through. The left pull plate 7, left guide plate 9, right guide plate 12, and right pull plate 13 can move left and right relative to the upper guide rod 4 and lower guide rod 6. The left pull plate 7 and right pull plate 13 are used to push the outer stop 23 of the clearance gauge outwards. A left screw 5 connects the left side plate 3 and the left pull plate 7. The left screw 5 is located between the upper guide rod 4 and lower guide rod 6. The left end of the left screw 5 protrudes from the left side of the left side plate 3 and connects to the left handwheel 2. When the left handwheel 2 is rotated, the left pull plate 7 moves left and right relative to the upper guide rod 4 and lower guide rod 6 under the influence of the left screw 5. A right screw 20 connects the right side plate 14 and the right pull plate 13. The right screw 20 is located between the upper guide rod 4 and the lower guide rod 6. The right end of the right screw 20 protrudes from the right side of the right side plate 14 and connects to the right hand wheel 16. When the right hand wheel 16 is rotated, the right pull plate 13 moves left and right relative to the upper guide rod 4 and the lower guide rod 6 under the drive of the right screw 20. The force gauge mounting plate 10 is connected to the front side of the left guide plate 9 and the right guide plate 12 respectively. The left inner stop block 8 and the right inner stop block 11 are installed on the upper side of the left and right ends of the force gauge mounting plate 10 respectively. The left inner stop block 8 and the right inner stop block 11 are used for clamping the inner stop of the clearance gauge. The force gauge 17 is installed on the surface of the force gauge mounting plate 10 that is opposite to the left guide plate 9 and the right guide plate 12.

[0022] like Figures 1 to 3 As shown, a force gauge probe clamping block 19 is connected to the upper surface of the front right side of the base plate 1. A force gauge sleeve 18 is provided at the upper end of the force gauge probe clamping block 19. When the force gauge 17 is installed on the surface of the force gauge mounting plate 10, the probe of the force gauge 17 can be positioned in the force gauge sleeve 18. A vertically upward extending indication stop block 15 is connected to the base plate 1 on the right side of the force gauge probe clamping block 19. The inner side of the upper end of the indication stop block 15 is provided with a step for positioning the gauge block.

[0023] The measuring force of the clearance gauge is tested using a special fixture; see [link to relevant documentation]. Figure 5 , Figure 6As shown, crank the left and right handwheels to make the left and right pull plates press against the outer stops 23 at both ends of the clearance gauge. At the same time, adjust the movement of the left and right pull plates to place the force wrench of the clearance gauge in a vertical position. Rotate the eccentric wheel handle of the clearance gauge to make the inner stop 25 of the clearance gauge clamp the left and right inner stop blocks of the special gauge. Adjust the reading of the force wrench of the clearance gauge to the 290N and 490N positions respectively. Move the force wrench of the clearance gauge to the left and right ends respectively, and read the axial force value from the display window of the tension gauge. The difference between the position force value and the reading of the tension gauge is the indication error of the force wrench.

[0024] Use a special gauge to test the indication error of the clearance gauge, see [link / reference]. Figure 7 , Figure 8 As shown, after testing the force value of the torque wrench, loosen one end of the pull plate by about 5mm, install the indicator on the clearance gauge and make its probe contact the gauge indication stop 15, then lock the indicator. Move the torque wrench towards the other pull plate and read the value of the indicator. Place the gauge block 28 on the indication stop 15, move the torque wrench in the opposite direction, and read the measured value from the indicator. The difference between the measured value and the gauge block value is the indication error at that point.

[0025] The above embodiments are merely preferred embodiments of this utility model. The structure of this utility model is not limited to the forms listed in the above embodiments. Any modifications, equivalent substitutions, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A special gauge for rolling bearing clearance measuring instruments, characterized in that, The components include a base plate (1), a left side plate (3), a right side plate (14), a left pull plate (7), a right pull plate (13), a left guide plate (9), a right guide plate (12), a left handwheel (2), a right handwheel (16), an upper guide rod (4), a lower guide rod (6), a left inner stop block (8), a right inner stop block (11), a force gauge mounting plate (10), and a force gauge (17). The left side plate (3) and the right side plate (14) are vertically connected to the upper surfaces of the left and right ends of the base plate (1), respectively. The upper guide rod... Rod (4) and lower guide rod (6) are set parallel to each other and connected between the inner side of the left side plate (3) and the inner side of the right side plate (14). Left pull plate (7), left guide plate (9), right guide plate (12), and right pull plate (13) are connected to the upper guide rod (4) and lower guide rod (6) from left to right. A left screw rod (5) is connected between the left side plate (3) and the left pull plate (7). The left screw rod (5) is located between the upper guide rod (4) and the lower guide rod (6). The left end of the left screw rod (5) protrudes. The left side of the left plate (3) is connected to the left handwheel (2). When the left handwheel (2) is turned, the left pull plate (7) moves left and right relative to the upper guide rod (4) and the lower guide rod (6) under the drive of the left screw (5). The right plate (14) is connected to the right pull plate (13) by a right screw (20). The right screw (20) is located between the upper guide rod (4) and the lower guide rod (6). The right end of the right screw (20) protrudes from the right side of the right plate (14) and is connected to the right handwheel (16). When the right handwheel (16) is turned, the right pull plate (7) moves left and right relative to the upper guide rod (4) and the lower guide rod (6). The right end of the right screw (20) protrudes from the right side of the right plate (14) and is connected to the right handwheel (16). 16) When the right pull plate (13) is driven by the right screw (20), it moves left and right relative to the upper guide rod (4) and the lower guide rod (6). The force gauge mounting plate (10) is connected to the front side of the left guide plate (9) and the right guide plate (12) respectively. The left inner stop block (8) and the right inner stop block (11) are installed on the upper side of the left and right ends of the force gauge mounting plate (10) respectively. The force gauge (17) is installed on the side surface of the force gauge mounting plate (10) facing away from the left guide plate (9) and the right guide plate (12).

2. The special gauge for measuring clearance of rolling bearings as described in claim 1, characterized in that, The base plate (1) is a concave steel plate. The upper surface of the front right side of the base plate (1) is connected to a force gauge probe clamping block (19). A force gauge sleeve (18) is provided at the upper end of the force gauge probe clamping block (19). When the force gauge (17) is installed on the surface of the force gauge mounting plate (10), the probe of the force gauge (17) can be positioned in the force gauge sleeve (18).

3. The special gauge for rolling bearing clearance measuring instrument as described in claim 2, characterized in that, A vertically upward extending indicator block (15) is connected to the base plate (1) on the right side of the force gauge probe clamp (19). The upper inner side of the indicator block (15) is provided with a step for positioning the gauge block.

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