Abrasion and eccentric wear detection device for top surface of adapter

Abstract

The utility model relates to an adapter top surface abrasion and eccentric wear detection device, which comprises a base, a rotating arm, a transverse ruler, a gauge stand, a dial gauge, an adapter positioning device and an adapter clamping device, support legs are respectively arranged on two sides of the bottom end of the base, and the rotating arm is vertically connected to the upper surface of the base and can rotate relative to the base. One end of the transverse ruler is fixedly connected with the outer surface of the rotating arm, the other end of the transverse ruler is perpendicular to the outer surface of the rotating arm and extends outwards horizontally, the gauge stand is positioned on a horizontal section of the transverse ruler, and a pointer of the dial gauge is installed on the gauge stand downwards. The adapter clamping device is connected to the bottom end of the base and the outer edges of the two opposite sides and can jointly clamp the adapter located on the adapter locating device. During measurement, the transverse ruler can rotate to the upper side of the adapter along with the rotating arm, and the dial gauge probe contacts the top surface of the adapter to measure the wear and eccentric wear values of the top surface of the adapter. According to the utility model, the measured value can be directly read, the measured value precision is high, and the measurement efficiency is also high.

Description

Technical Field

[0001] The utility model relates to the field of measurement technology, in particular to a device for detecting wear and eccentric wear of the top surface of a bearing saddle. Background Art

[0002] The load-bearing saddle is an important component used in the bogie assembly of railway vehicles. The load-bearing saddle bears the pressure from the car body and the torsion force during the rotation of the car body. The top surface of the load-bearing saddle is a force-bearing mating surface. The load-bearing saddle is an ordinary carbon steel casting. After a period of use, its top surface will be worn or eccentrically worn due to long-term friction. In order to ensure the safe operation of railway vehicles, the load-bearing saddle needs to be replaced after the wear or eccentric wear of the top surface of the load-bearing saddle reaches a certain degree. In order to determine whether the wear or eccentric wear of the top surface of the load-bearing saddle reaches the replacement standard, the wear or eccentric wear of the top surface of the load-bearing saddle needs to be measured. The existing method for measuring the wear and eccentric wear of the top surface of the load-bearing saddle is to place a standard flat plate with a flat surface on the top surface of the load-bearing saddle, and then insert plugs of different thicknesses into the gap between the standard flat plate and the top surface of the load-bearing saddle. The wear or eccentric wear of the top surface of the load-bearing saddle is determined by the thickness of the plug inserted into the gap. This existing measurement method is that the measuring staff selects the plug that can be inserted into the gap according to the size of the gap. Human operation errors can easily affect the measurement accuracy. It is necessary to replace plugs of different thicknesses and move standard flat plates many times, and the measurement efficiency is low. When the middle concave condition occurs, the wear cannot be detected. Summary of the invention

[0003] The purpose of the utility model is to provide a device for detecting wear and eccentric wear of the top surface of a load-bearing saddle in view of the defects of the above-mentioned prior art, which can directly read out the measured value, has high measurement accuracy and high measurement efficiency.

[0004] The utility model adopts the following technical scheme to achieve the above-mentioned purpose: a device for detecting the wear and eccentric wear of the top surface of a bearing saddle, comprising a base, a rotating arm, a horizontal ruler, a table base, an indicating table, a bearing saddle positioning device and a bearing saddle clamping device. Support feet are respectively arranged on both sides of the bottom end of the base. The rotating arm is vertically connected to the upper surface of the base and can rotate relative to the base. One end of the horizontal ruler is fixedly connected to the outer surface of the rotating arm, and the other end of the horizontal ruler is perpendicular to the outer surface of the rotating arm and extends horizontally outward. The table base is positioned on the horizontal section of the horizontal ruler. The indicating table is installed on the table base with the measuring needle facing downward through the locking screw of the indicating table. The bearing saddle positioning device is connected to the middle position of the upper surface of the base. The bearing saddle clamping device is connected to the bottom end of the base and the outer edges of the two opposite sides and can jointly clamp the bearing saddle positioned on the bearing saddle positioning device. During measurement, the horizontal ruler can rotate with the rotating arm to the upper side of the bearing saddle, and the measuring needle of the indicating table contacts the top surface of the bearing saddle to measure the wear and eccentric wear values ​​of the top surface of the bearing saddle.

[0005] A further technical solution of the utility model is: a rotating shaft is connected to the bottom end of the rotating arm, a through hole matching the rotating shaft is provided on the base, the rotating shaft passes through the through hole and the bottom end is positioned by a fixing device.

[0006] A further technical solution of the utility model is: the load-bearing saddle positioning device includes a bearing seat, a spindle, and a support bearing. The bearing seat is connected to the middle position of the upper surface of the base on one side of the rotating arm, the spindle crosses the center hole of the bearing seat and protrudes on both sides of the center hole of the bearing seat, and a support bearing is assembled on the spindle protruding from the center hole of the bearing seat on each side.

[0007] The cam is connected with the two screw seats at the bottom ends of the base, and the two screw seats are connected with the two screw seats in the middle of the two screw seats, and the limit block is arranged in the limit seat, and the two clamping plates are respectively connected with the two ends of the screw sleeves provided with internal threads, and the two screw sleeves are respectively arranged on the inner sides of the two screw seats and the two clamping plates are respectively located on the outer edges of the base outside the two screw seats, and the inner screw passes through the screw sleeve on the right side and the limit block in the middle from right to left to enter the screw sleeve on the left side, and the right end part of the inner screw is also recessed inwardly and provided with an internal threaded hole, and the connecting screw on the inner side of the adjusting handwheel cooperates with the internal threaded hole on the right end part of the inner screw from outside to inside, and rotating the adjusting handwheel can adjust the spacing between the two clamping plates to realize clamping or loosening of the load-bearing saddle positioned on the load-bearing saddle positioning device.

[0008] A further technical solution of the utility model is: it also includes a standard calibration rod, and the surface of the standard calibration rod is smooth and flat.

[0009] The utility model discloses a device for detecting the wear and eccentric wear of the top surface of the bearing saddle, which has the following beneficial effects: a rotatable rotating arm is arranged on the upper surface of the base, a horizontal ruler is vertically connected to one side of the rotating arm, an indicating gauge for detecting the wear and eccentric wear of the top surface of the bearing saddle is connected to the horizontal ruler, a bearing saddle positioning device for positioning the bearing saddle is arranged on the upper surface of the base, and a bearing saddle clamping device for clamping the bearing saddle is arranged on both sides of the base, so that the bearing saddle can be directly positioned and clamped on the upper surface of the base, and the measuring needle of the indicating gauge can contact the top surface of the bearing saddle at will by rotating the rotating arm and adjusting the position of the gauge seat, so that the wear and eccentric wear values ​​of the top surface of the bearing saddle can be directly measured, and the measurement value has high precision and high measurement efficiency.

[0010] The following is a further description of the load-bearing saddle top surface wear and eccentric wear detection device of the present invention in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model of the wear and eccentric wear detection device of the load-bearing saddle top surface (the clamping plate is omitted);

[0012] Figure 2 It is a left view of the utility model of the wear and eccentric wear detection device of the load-bearing saddle top surface (the standard calibration rod is omitted);

[0013] Figure 3 It is a three-dimensional diagram of the utility model's load-bearing saddle top surface wear and eccentric wear detection device (without the standard calibration rod);

[0014] Figure 4 It is a schematic diagram of measuring the wear and eccentric wear of the top surface of the load-bearing saddle by using the wear and eccentric wear detection device of the load-bearing saddle top surface of the utility model;

[0015] Figure 5 It is a left view (partial section of the load saddle clamping device) of measuring the load saddle top surface wear and eccentric wear using the utility model load saddle top surface wear and eccentric wear detection device;

[0016] Explanation of the accompanying numbers: 1-support foot, 2-base, 3-spindle, 4-rotating arm, 5-horizontal ruler, 6-diameter base, 7-indicator, 8-indicator locking screw, 9-support bearing, 10-bearing seat, 11-spindle, 12-standard calibration rod, 13-nut, 14-limit block, 15-adjusting handwheel, 16-screw seat, 17-clamping plate, 18-screw sleeve, 19-limit seat, 20-diameter base locking screw, 21-bearing saddle, 22-inner screw. DETAILED DESCRIPTION

[0017] like Figures 1 to 3 As shown, the utility model of the load-bearing saddle top surface wear and eccentric wear detection device includes a base 2, a rotating arm 4, a horizontal ruler 5, a table base 6, an indicator table 7, a load-bearing saddle positioning device and a load-bearing saddle clamping device. The utility model also includes a standard calibration rod 12, and the surface of the standard calibration rod 12 is smooth and flat.

[0018] like Figures 1 to 3As shown, the base 2 is a thick steel plate with an overall rectangular shape, and the surface of the base 2 is smooth and flat. Support feet 1 are respectively provided on both sides of the bottom end of the base 2, with two support feet 1 provided on each side, and four support feet 1 are respectively provided at the four corners of the bottom surface of the base 2. The rotating arm 4 is vertically connected to the upper surface of the base 2 and can rotate relative to the base 2. The rotating arm 4 is a cylindrical structure, and a rotating shaft 3 is connected to the bottom end of the rotating arm 4. A through hole matching the rotating shaft 3 is provided on the base 2. The rotating shaft 3 passes through the through hole and the bottom end is positioned by a fixing device. During implementation, a bearing can be provided in the through hole, and the rotating shaft 3 can be connected to the inner ring of the bearing. The outer surface of the bottom end of the rotating shaft 3 is provided with an external thread. After the rotating shaft 3 passes through the bearing in the through hole, the bottom end is locked and fixed by a nut 13. One end of the horizontal ruler 5 is fixedly connected to the outer surface of the rotating arm 4 by a screw, and the other end of the horizontal ruler 5 is perpendicular to the outer surface of the rotating arm 4 and extends horizontally outward. The length of the horizontal section of the horizontal ruler 5 is preferably enough to cross the top surface of the bearing saddle 21. The meter base 6 is positioned on the horizontal section of the horizontal ruler 5 by the meter base locking screw 20, and the relative position of the meter base 6 and the horizontal ruler 5 can be adjusted by loosening the meter base locking screw 20. The indicating meter 7 is installed on the meter base 6 with the measuring needle facing downward by the indicating meter locking screw 8, that is, when the indicating meter 7 is installed on the meter base 6, the measuring needle of the indicating meter 7 faces vertically downward.

[0019] like Figures 1 to 3 As shown, the bearing saddle positioning device is connected to the middle of the upper surface of the base 2, wherein the bearing saddle positioning device includes a bearing seat 10, a spindle 11, and a support bearing 9. The bearing seat 10 is connected to the middle of the upper surface of the base 2 on one side of the rotating arm 4 through a fixing device. The spindle 11 horizontally crosses the center hole of the bearing seat 10 and protrudes from both sides of the center hole of the bearing seat 10. A support bearing 9 is assembled on the spindle 11 protruding from the center hole of the bearing seat 10 on each side. The support bearing 9 is used to support the inner arc surface of the bearing saddle 21.

[0020] like Figures 1 to 5As shown, the load-bearing saddle clamping device is connected to the bottom end of the base 2 and the outer edges of the two opposite sides and can jointly clamp and position the load-bearing saddle 21 on the load-bearing saddle positioning device. The load-bearing saddle clamping device includes a screw seat 16, a limit seat 19, an inner screw 22, a limit block 14, a clamping plate 17, and an adjusting hand wheel 15. In this embodiment, two sections of screw seats 16 and two clamping plates 17 are arranged. The two sections of screw seats 16 are connected to the bottom end of the base 2 at intervals, and the positions of the through holes in the middle of the two sections of the screw seats 16 correspond to each other, that is, the middle holes of the two sections of the screw seats 16 are axially the same, and the two sections of the screw seats 16 are respectively connected to the opposite sides of the bottom end of the base 2 at intervals. The limit seat 19 is connected between the two sections of the screw seat 16 at the bottom of the base 2. A through hole is provided in the middle of the limit seat 19 with the same axial direction as the middle hole of the two sections of the screw seat 16. The limit seat 19 is also provided with a mounting groove that is recessed upward from the bottom. The limit block 14 is arranged in the mounting groove of the limit seat 19. The middle of the limit block 14 is also provided with a through hole with the same axial direction as the middle through hole of the limit seat 19. The lower sides of the two clamping plates 17 are respectively connected to the outer ends of the two sections of the screw sleeve 18 with internal threads. The screw sleeve 18 is a sleeve with internal threads. The two sections of the screw sleeve 18 are respectively arranged on the inner sides of the two sections of the screw seat 16 (in the middle through hole) and the two clamping plates 17 are respectively located on the outer edge of the base 2 outside the two sections of the screw seat 16, and the ends of the two clamping plates 17 extend upward. An inner screw 22 passes from right to left through the screw sleeve 18 on the right side and the middle through hole of the stopper 14 in the middle, and then enters the screw sleeve 18 on the left side. The outer threads of the inner screw 22 respectively cooperate with the inner threads of the two sections of the screw sleeve 18, and the stopper 14 can prevent the middle part of the inner screw 22 from bending. The right end of the inner screw 22 is also recessed inward to provide an inner threaded hole. The adjusting hand wheel 15 includes a hand wheel and a connecting screw connected to the inner side of the hand wheel. The connecting screw inside the adjusting hand wheel 15 cooperates with the inner threaded hole at the right end of the inner screw 22 from the outside to the inside. After the connecting screw inside the adjusting hand wheel 15 cooperates with the inner threaded hole at the right end of the inner screw 22, the adjusting hand wheel 15 and the inner screw 22 are connected to form an integral structure. Since the relative positions of the inner screw 22 and the two-stage screw sleeves 18 can be adjusted by rotating the adjusting hand wheel 15, the spacing between the two clamping plates 17 can be adjusted to clamp or loosen the load saddle 21 positioned on the load saddle positioning device. During measurement, the horizontal ruler 5 can rotate with the rotating arm 4 to the upper side of the load saddle 21, and the measuring needle of the indicator 7 can contact the top surface of the load saddle 21 to measure the wear and eccentric wear values ​​of the top surface of the load saddle.

[0021] like Figures 1 to 5As shown, when the utility model is used to detect the wear and eccentric wear detection device of the top surface of the load-bearing saddle, the following steps are included: (i) take a standard calibration rod 12, one end of the standard calibration rod 12 contacts the upper surface of the base 2 of the detection device, and the other end of the standard calibration rod 12 contacts the measuring needle of the indicator 7, the indicator 7 is locked on the base 6 by the indicator locking screw 8, and the outer dial of the indicator 7 is rotated so that the long pointer is aligned with the 0 scale line; (ii) the load-bearing saddle 21 is buckled on the load-bearing saddle positioning device, the inner cavity of the load-bearing saddle 21 faces downward and the top surface faces upward, and then the position of the load-bearing saddle 21 is adjusted so that its inner arc is aligned with the two support The bearing 9 is in stable contact, so that the top surface of the load-bearing saddle 21 is in a horizontal state, and the adjusting hand wheel 15 is turned to make the clamping plates 17 on both sides of the base 2 clamp the load-bearing saddle 21; (iii) the rotating arm 4 is rotated to make the horizontal ruler 5 rotate with the rotating arm 4 to the top of the load-bearing saddle 21, so that the probe of the indicator 7 contacts the top surface of the load-bearing saddle 21, and the wear size of the top surface of the load-bearing saddle is measured. During the measurement process, the rotating arm 4 can be continuously rotated and the relative position of the table base 6 and the horizontal ruler 5 can be adjusted, so that the probe of the indicator 7 can contact any position of the top surface of the load-bearing saddle. The maximum reading value of the indicator 7 is the wear depth of the top surface of the load-bearing saddle, and the difference between the maximum and minimum values ​​is the eccentric wear.

[0022] The above embodiments are only preferred embodiments of the present invention. The structure of the present invention is not limited to the forms listed in the above embodiments. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting wear and eccentric wear of the top surface of a load-bearing saddle, characterized in that: The invention comprises a base (2), a rotating arm (4), a horizontal ruler (5), a table base (6), an indicator table (7), a load-bearing saddle positioning device and a load-bearing saddle clamping device. The base (2) is provided with supporting feet (1) on both sides of the bottom end. The rotating arm (4) is vertically connected to the upper surface of the base (2) and can rotate relative to the base (2). One end of the horizontal ruler (5) is fixedly connected to the outer surface of the rotating arm (4). The other end of the horizontal ruler (5) is vertical to the outer surface of the rotating arm (4) and extends horizontally outward. The table base (6) is positioned on the horizontal section of the horizontal ruler (5). The indicator table (7) is positioned on the horizontal section of the horizontal ruler (5). The gauge (7) is mounted on the gauge base (6) with the measuring needle facing downwards by means of the indicator gauge locking screw (8), the bearing saddle positioning device is connected to the middle position of the upper surface of the base (2), the bearing saddle clamping device is connected to the bottom end and the outer edges of the two opposite sides of the base (2) and can jointly clamp the bearing saddle (21) positioned on the bearing saddle positioning device, and during measurement, the horizontal ruler (5) can rotate with the rotating arm (4) to the upper side of the bearing saddle (21), and the measuring needle of the indicator gauge (7) contacts the top surface of the bearing saddle (21) to measure the wear and eccentric wear values ​​of the top surface of the bearing saddle.

2. The device for detecting wear and eccentric wear of the top surface of the load-bearing saddle according to claim 1, characterized in that: The bottom end of the rotating arm (4) is connected to a rotating shaft (3), the base (2) is provided with a through hole matching the rotating shaft (3), the rotating shaft (3) passes through the through hole and the bottom end is positioned by a fixing device.

3. The device for detecting wear and eccentric wear of the top surface of the load-bearing saddle according to claim 1, characterized in that: The bearing saddle positioning device comprises a bearing seat (10), a spindle (11), and a support bearing (9); the bearing seat (10) is connected to the middle position of the upper surface of the base (2) on one side of the rotating arm (4); the spindle (11) crosses the center hole of the bearing seat (10) and protrudes from both sides of the center hole of the bearing seat (10); and a support bearing (9) is mounted on each side of the spindle (11) protruding from the center hole of the bearing seat (10).

4. The device for detecting wear and eccentric wear of the top surface of the load-bearing saddle according to claim 1, characterized in that: The bearing saddle clamping device comprises a screw seat (16), a limit seat (19), an internal screw (22), a limit block (14), a clamping plate (17), and an adjusting hand wheel (15); two sections of the screw seat (16) are connected to the bottom end of the base (2) at an interval; the positions of the through holes in the middle of the two sections of the screw seat (16) correspond to each other; the limit seat (19) is connected between the two sections of the screw seat (16) at the bottom end of the base (2); the limit block (14) is arranged in the limit seat (19); the two clamping plates (17) are respectively connected to the ends of two sections of the screw sleeve (18) provided with internal threads; the two sections of the screw sleeve (18) are respectively arranged on the two sections of the screw seat (16) The inner side and two clamping plates (17) are respectively located at the outer edge of the base (2) outside the two screw seats (16); the inner screw (22) passes through the screw sleeve (18) located on the right side and the limit block (14) located in the middle from right to left and enters the screw sleeve (18) located on the left side; the right end of the inner screw (22) is also recessed inwardly to provide an internal threaded hole; the connecting screw on the inner side of the adjusting hand wheel (15) cooperates with the internal threaded hole on the right end of the inner screw (22) from outside to inside; the spacing between the two clamping plates (17) can be adjusted by rotating the adjusting hand wheel (15) to achieve clamping or loosening of the load bearing saddle (21) positioned on the load bearing saddle positioning device.

5. The device for detecting wear and eccentric wear of the top surface of the load-bearing saddle according to claim 1, characterized in that: It also comprises a standard calibration rod (12), the surface of which is smooth and flat.

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