Wear-resistant cast ball detection device

Abstract

The utility model discloses a wear-resistant cast ball detection device, and relates to the technical field of cast ball detection, the wear-resistant cast ball detection device comprises a detection table, a placement seat, a driving mechanism and a detection mechanism, the detection mechanism comprises a support frame, an electric telescopic rod and a hardness tester, the driving mechanism comprises two rotating shafts, a rubber wheel and a transmission belt, and the wear-resistant cast ball detection device also comprises an automatic locking part; through the arrangement of the automatic locking part, when the electric telescopic rod is started to drive the hardness tester to move downwards to detect the wear-resistant cast ball, an electromagnet in the brake assembly is quickly started and forms repulsive force on a magnetic sheet to act on two sliding sheets to move close to each other until a friction block is in contact with the surface of a clamping wheel; meanwhile, compared with an existing deflection rod and limiting block structure with an elastic characteristic, when the handle is rotated by one hand to rotate the wear-resistant cast ball, the other hand does not need to handle the deflection rod and limit the elastic structure of the deflection rod in real time, so that manpower is effectively liberated, and the working intensity is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of cast ball testing technology, specifically to a wear-resistant cast ball testing device. Background Technology

[0002] In the existing technology, when testing the hardness of wear-resistant steel balls, the casting ball is usually fixed and then pressed down by a hardness tester. This is inconvenient to adjust the position of the wear-resistant casting ball and cannot perform multi-position testing, which has great limitations.

[0003] The prior art patent announcement number CN222232171U describes a high-chromium cast ball testing device. The aforementioned patent, through the cooperation of a set of structures such as a placement seat, ball bearings, and drive wheel, can drive the wear-resistant cast ball to rotate on the placement seat. This facilitates the testing of different positions of the cast ball using a set hardness tester, thereby improving the accuracy of the test. Furthermore, through the cooperation of a set of structures such as a deflection rod, locking wheel, limit block, and elastic element, the drive wheel can be locked or unlocked to prevent it from rotating during the testing process.

[0004] However, in practice, because the deflection rod has elastic characteristics under the action of the elastic element, when manually turning the handle to drive the wear-resistant cast ball, the other hand needs to pull the deflection rod in real time to brake the elastic force of the elastic element on the deflection rod, so as to prevent the deflection rod from becoming loose and causing the limit block to get stuck in the tooth gap of the locking wheel, interfering with the normal rotation of the wear-resistant ball. Therefore, in actual operation, it is necessary to operate with both hands, which is time-consuming and laborious, and the work efficiency is poor. Utility Model Content

[0005] To address the aforementioned technical problems, a wear-resistant cast ball testing device is provided. This device solves the problem in existing technologies where the deflection rod, under the action of the elastic element, has elastic characteristics. Therefore, when manually rotating the handle to drive the wear-resistant cast ball, the other hand must simultaneously pull the deflection rod to brake the elastic force of the elastic element on the deflection rod, preventing the deflection rod from loosening and causing the limit block to get stuck in the teeth of the locking wheel, interfering with the normal rotation of the wear-resistant ball. Thus, in actual operation, manual operation with both hands is required, which is time-consuming, labor-intensive, and has poor work efficiency.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a wear-resistant cast ball testing device, including a testing platform, a placement seat that is generally ring-shaped and located in the middle of the top surface of the testing platform, a driving mechanism located below the placement seat, and an inspection mechanism located on the side of the placement seat;

[0007] The testing mechanism includes a support frame fixed to the top surface of the testing table, an electric telescopic rod installed on the inner wall of the top of the support frame, and a hardness tester installed at the telescopic end of the electric telescopic rod.

[0008] The drive mechanism includes two symmetrically distributed rotating shafts below the placement seat, a rubber wheel fastened to the shaft body, and a transmission belt connecting the two rotating shafts. One of the rotating shafts has a drive rod fixed to its end, and the mechanism also includes an automatic locking component for locking the rubber wheel.

[0009] The automatic locking component includes a locking wheel that is fastened to the body of the drive rod, a braking component disposed outside the locking wheel, and a sensing component disposed outside the electric telescopic rod and cooperating with the braking component;

[0010] The braking assembly includes a retaining seat with an internal cavity and a U-shape fixed to the top surface of the detection platform, two sliding pieces that can be elastically slidable on both sides of the inner cavity of the retaining seat, and a connecting member disposed in the middle of the inner cavity of the retaining seat. The edge of the retaining wheel rotates in the inner side of the retaining seat. A friction block is fixed on the corresponding side of each of the two sliding pieces. A through groove corresponding to the friction block is opened on both sides of the recess of the retaining seat.

[0011] Preferably, the braking assembly further includes an electromagnet installed in the inner wall of one side of the card holder, and a magnetic sheet corresponding to the electromagnet is fixed on the side wall of one of the slides.

[0012] Preferably, the sensing component includes a fixed sleeve that is sleeved on the outside of the electric telescopic rod and fixedly connected to the inner wall of the top of the support frame. A pressure sensor is installed on the bottom surface of the fixed sleeve, and a compression ring plate is provided below the pressure sensor. The compression ring plate is fixedly connected to the electric telescopic rod through a bracket.

[0013] Preferably, the linkage component includes a movable column that is laterally rotatably disposed between the inner walls of the front and rear sides of the locking seat and a transmission gear fastened to the movable column. The transmission gear has transmission racks meshing on both its upper and lower sides, and the two transmission racks are staggered and respectively fixedly connected to the two sliding plates.

[0014] Preferably, a T-shaped sliding groove is provided on the inner wall of the bottom end of the snap-fit ​​seat, and T-shaped sliders are symmetrically slidably arranged in the T-shaped sliding groove. A compression spring is fixed between the two T-shaped sliders, and the two T-shaped sliders are respectively connected to the two sliding pieces.

[0015] Compared with the prior art, the advantages of this utility model are as follows: By setting up an automatic locking component, when the electric telescopic rod is opened to drive the hardness tester downward to test the wear-resistant cast ball, the electromagnet in the braking component quickly opens and forms a repulsive force on the magnetic plate, causing the two sliding plates to move closer together until the friction block contacts the surface of the locking wheel. This achieves the braking effect on the locking wheel, drive rod, shaft, and rubber wheel as a whole, preventing the rubber wheel from rotating during the wear-resistant cast ball testing process and interfering with the testing quality of the wear-resistant cast ball. At the same time, compared with the existing deflection rod and limit block structure with elastic features, it is not necessary to manually turn the handle with one hand to supply the wear-resistant cast ball while simultaneously turning the deflection rod with the other hand to limit the elastic structure of the deflection rod, thereby effectively freeing up manpower and reducing labor intensity. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the placement base of this utility model;

[0018] Figure 3 This is a schematic diagram of the sensing component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the drive mechanism structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the card holder of this utility model.

[0021] The numbers on the map are:

[0022] 1. Testing table; 2. Support frame; 3. Electric telescopic rod; 4. Hardness tester; 5. Placement seat; 6. Rotating shaft; 7. Rotary seat; 8. Rubber wheel; 9. Transmission belt; 10. Drive rod; 11. Snap-fit ​​seat; 12. Snap-fit ​​wheel; 13. Friction block; 14. T-shaped slider; 15. Compression spring; 16. Transmission gear; 17. Transmission rack; 18. Electromagnet; 19. Magnetic sheet; 20. Fixing sleeve; 21. Pressure sensor; 22. Extrusion ring plate; 23. Sliding plate. Detailed Implementation

[0023] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0024] Reference Figure 1-5As shown, a wear-resistant cast ball testing device includes a testing platform 1, a ring-shaped placement seat 5 located in the center of the top surface of the testing platform 1 for loading wear-resistant cast balls, a drive mechanism located below the placement seat 5 for rotating the wear-resistant cast balls, and an inspection mechanism located on the side of the placement seat 5 for testing the quality of the wear-resistant cast balls. A number of balls are embedded around the inner wall of the placement seat 5, and the inner wall of the placement seat 5 is adapted to the spherical arc surface.

[0025] The testing mechanism includes a support frame 2 fixed in an inverted L shape to the top surface of the testing table 1, an electric telescopic rod 3 installed on the inner wall of the top of the support frame 2, and a hardness tester 4 installed at the telescopic end of the electric telescopic rod 3.

[0026] The drive mechanism includes two symmetrically distributed rotating shafts 6 below the placement seat 5, a rubber wheel 8 fastened to the shaft body of the rotating shaft 6, and a transmission belt 9 connecting the two rotating shafts 6. One end of the rotating shaft 6 is rotatably sleeved with a supply seat 7 fixed to the detection table 1, and a drive rod 10 is fixed to the end of one of the rotating shafts 6, with a handle fixed to the end of the drive rod 10.

[0027] With the setup of the placement seat 5, drive mechanism and inspection mechanism, when it is necessary to test the wear-resistant cast ball, first place the wear-resistant cast ball on the placement seat 5 so that it contacts the ball and the rubber wheel 8 respectively, and then start the electric telescopic rod 3 to drive the hardness tester 4 down, so that the surface hardness of the cast ball can be tested.

[0028] Then, turning the handle drives one of the rotating shafts 6 to rotate. Then, through the transmission belt 9, the two rotating shafts 6 rotate simultaneously in the same direction, that is, synchronously drive the rubber wheels 8 on the two rotating shafts 6. The friction between the rubber wheels 8 and the wear-resistant cast ball drives the wear-resistant cast ball to rotate on the placement seat 5, which facilitates the detection of different positions of the cast ball by the hardness tester 4, thus improving the accuracy of the detection.

[0029] Furthermore, referring to Figure 1 , Figure 3 , Figure 4 as well as Figure 5 As shown, it is worth noting that an automatic locking component for locking the rubber wheel 8 is also included;

[0030] The automatic locking component includes a locking wheel 12 that is fastened to the body of the drive rod 10, a braking component disposed outside the locking wheel 12, and a sensing component disposed outside the electric telescopic rod 3 that cooperates with the braking component.

[0031] The braking assembly includes a retaining seat 11 with an internal cavity and a U-shaped shape, fixed to the top surface of the testing platform 1; two sliding pieces 23 that can be elastically slidable on both sides of the cavity of the retaining seat 11; and a linkage component disposed in the middle of the cavity of the retaining seat 11. The edge of the retaining wheel 12 rotates in the inner side of the retaining seat 11. Friction blocks 13 are fixed on the corresponding sides of the two sliding pieces 23. The two side walls of the recess of the retaining seat 11 are provided with through grooves corresponding to the friction blocks 13.

[0032] The braking assembly also includes an electromagnet 18 installed in the inner wall of one side of the card holder 11, and a magnetic piece 19 corresponding to the electromagnet 18 is fixed on the side wall of one of the slides 23.

[0033] With the automatic locking component set, when the electric telescopic rod 3 is opened to drive the hardness tester 4 to descend and test the wear-resistant cast ball, the electromagnet 18 in the braking component is quickly opened and forms a repulsive force on the magnetic plate 19, which acts on one of the sliding plates 23 to carry the friction block 13 on it to slide towards the middle of the locking seat 11. During the synchronous process, the other sliding plate 23 slides synchronously towards the middle of the locking seat 11 under the linkage component.

[0034] When the two sliding plates 23 move close together, the friction blocks 13 on them extend from the through groove into the recess of the locking seat 11 until the friction blocks 13 contact the surface of the locking wheel 12. The two friction blocks 13 cooperate to achieve the overall braking effect on the locking wheel 12, the drive rod 10, the rotating shaft 6, and the rubber wheel 8, preventing the rubber wheel 8 from rotating during the wear-resistant cast ball testing process and interfering with the testing quality of the wear-resistant cast ball. At the same time, compared with the existing deflection rod and limit block structure with elastic features, it is not necessary to manually turn the handle with one hand to supply the wear-resistant cast ball while simultaneously turning the deflection rod with the other hand to limit the elastic structure of the deflection rod, thereby effectively freeing up manpower and reducing labor intensity.

[0035] Furthermore, referring to Figure 5 As shown, it is worth noting that the linkage includes a movable column that is laterally rotatably disposed between the inner walls of the front and rear sides of the locking seat 11 and a transmission gear 16 that is fastened to the movable column. The transmission gear 16 has a transmission rack 17 meshing on both the upper and lower sides. The two transmission racks 17 are staggered and respectively fixed to the two sliding pieces 23.

[0036] When one of the slide plates 23 is subjected to force and slides, the slide plate 23 can simultaneously carry its mating transmission rack 17 to slide in the same direction and mesh with the transmission gear 16, causing the transmission gear 16 to mesh with the transmission rack 17 on the other slide plate 23 while rotating, causing the other slide plate 23 to slide in the opposite direction, thereby realizing the two slide plates 23 moving closer together.

[0037] Furthermore, referring to Figure 2 and Figure 5As shown, it is worth noting that the sensing component includes a fixed sleeve 20 that is sleeved on the outside of the electric telescopic rod 3 and fixedly connected to the inner wall of the top of the support frame 2. A pressure sensor 21 is installed on the bottom surface of the fixed sleeve 20. A compression ring plate 22 is provided below the pressure sensor 21. The compression ring plate 22 is fixedly connected to the telescopic rod of the electric telescopic rod 3 through a bracket. A PLC controller (not shown in the figure) is also provided on the detection table 1. The electromagnet 18 and the pressure sensor 21 are both electrically connected to the PLC controller.

[0038] A T-shaped sliding groove is provided on the inner wall of the bottom end of the card holder 11. T-shaped sliders 14 are symmetrically slidably arranged in the T-shaped sliding groove. A compression spring 15 is fixed between the two T-shaped sliders 14, and the two T-shaped sliders 14 are respectively connected to the two sliders 23.

[0039] When the electric telescopic rod 3 is activated to drive the hardness tester 4 to descend and test the wear-resistant cast ball, the extrusion ring plate 22 of the sensing component can move down synchronously and separate from the pressure sensor 21 during the extension of the electric telescopic rod 3. Thus, the pressure sensor 21 no longer senses pressure and transmits the signal to the PLC controller, which activates the electromagnet 18, so that the electromagnet 18 forms a repulsive force on the magnetic sheet 19, causing the two sliders 23 to slide in opposite directions inside the card holder 11.

[0040] During this process, the two T-shaped sliders 14 can move closer together in the T-shaped sliding gap and compress the compression spring 15. By utilizing the elastic force of the compression spring 15, when the wear-resistant cast ball test is completed and the electric telescopic rod 3 is turned on to reset the hardness tester 4 to the designated position, the compression ring plate 22 can re-contact the pressure sensor 21, so that the pressure sensor 21 is compressed again. Similarly, the signal is transmitted to the PLC controller, the electromagnet 18 is turned off, and the repulsive force between the electromagnet 18 and the magnetic sheet 19 is eliminated. In this way, the two T-shaped sliders 14 can quickly move away from each other and reset under the elastic force of the compression spring 15, so that the two sliding pieces 23 slide synchronously in opposite directions, releasing the braking effect on the locking wheel 12, the drive rod 10, the rotating shaft 6 and the rubber wheel 8.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant cast ball testing device, comprising a testing table (1), a placement seat (5) in the shape of a ring disposed in the middle of the top surface of the testing table (1), a driving mechanism disposed below the placement seat (5), and an inspection mechanism disposed on the side of the placement seat (5); The testing mechanism includes a support frame (2) fixed to the top surface of the testing table (1), an electric telescopic rod (3) installed on the inner wall of the top of the support frame (2), and a hardness tester (4) installed at the telescopic end of the electric telescopic rod (3). The driving mechanism comprises two rotating shafts (6) symmetrically arranged below the placing seat (5), rubber wheels (8) tightly sleeved on the shafts of the rotating shafts (6), and a transmission belt (9) transmissionally connected between the two rotating shafts (6), wherein the end of one of the rotating shafts (6) is fixed with a driving shaft (10), characterized in that, It also includes an automatic locking component for locking the rubber wheel (8); The automatic locking component includes a locking wheel (12) that is fastened to the body of the drive rod (10), a braking component disposed outside the locking wheel (12), and a sensing component disposed outside the electric telescopic rod (3) that cooperates with the braking component; The braking assembly includes a retaining seat (11) with an internal cavity and a U-shape fixed to the top surface of the detection platform (1), two sliding pieces (23) that can be elastically slidable on both sides of the cavity of the retaining seat (11), and a connecting member disposed in the middle of the cavity of the retaining seat (11). The edge of the retaining wheel (12) rotates in the inner side of the retaining seat (11). A friction block (13) is fixed on the corresponding side of the two sliding pieces (23). A through groove corresponding to the friction block (13) is opened on both sides of the recess of the retaining seat (11).

2. The apparatus for detecting a wear-resistant cast ball according to claim 1, wherein The braking assembly also includes an electromagnet (18) installed in the inner wall of one side of the card holder (11), and a magnetic piece (19) corresponding to the electromagnet (18) is fixed on the side wall of one of the slides (23).

3. The apparatus for detecting a wear-resistant cast ball according to claim 1, wherein The sensing component includes a fixed sleeve (20) sleeved on the outside of the electric telescopic rod (3) and fixedly connected to the inner wall of the top of the support frame (2). A pressure sensor (21) is installed on the bottom surface of the fixed sleeve (20). A compression ring plate (22) is provided below the pressure sensor (21). The compression ring plate (22) is fixedly connected to the telescopic rod of the electric telescopic rod (3) through a bracket.

4. The apparatus for detecting a wear-resistant cast ball according to claim 1, wherein The linkage component includes a movable column that is laterally rotatably disposed between the inner walls of the front and rear sides of the locking seat (11) and a transmission gear (16) fastened to the movable column. The transmission gear (16) is meshed with transmission racks (17) on both the upper and lower sides. The two transmission racks (17) are staggered and respectively fixed to the two sliding pieces (23).

5. The apparatus for detecting a wear-resistant cast ball according to claim 1, wherein A T-shaped sliding groove is provided on the inner wall of the bottom end of the card seat (11). T-shaped sliders (14) are symmetrically slidably arranged in the T-shaped sliding groove. A compression spring (15) is fixed between the two T-shaped sliders (14), and the two T-shaped sliders (14) are respectively connected to the two sliders (23).

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