A dial gauge fixing device for a ball-type abrasion tester

Abstract

The utility model provides a dial gauge fixing device of ball type wear resistance testing machine relates to dial gauge fixing technical field, including wear resistance testing machine body, the top rear end middle position of wear resistance testing machine body and the bottom middle position of lifter fixed connection, the front end position of lifter and tester rear end lower position sliding connection. The two -way screw rod in fixed frame interior passes through the screw hole drive both sides clamping plate synchronous relative movement, form the symmetrical clamping force, compared with traditional magnetic attraction fixed, can avoid dial gauge in the test process because of vibration and produce displacement, the slide rail of clamping plate side surface and slide hole cooperation, ensure that the moving process is stable and has no deviation, make dial gauge keep accurate detection position all the time to improve wear resistance test data's reliable. Solveed the current ball type wear resistance testing machine installation's dial gauge mostly through magnetic attraction fixed to ball type wear resistance testing machine test position, easy to appear displacement situation, influence transmission accuracy's problem.

Description

Technical Field

[0001] This utility model belongs to the field of dial indicator fixing technology, and more specifically, it relates to a dial indicator fixing device for a ball bearing abrasion tester. Background Technology

[0002] Concrete and its products have wear resistance requirements after preparation. Therefore, wear resistance tests are required on the prepared concrete and its products. By screening through wear resistance tests, concrete products that meet safety standards are obtained. During the use of the ball bearing abrasion tester, a dial gauge needs to be used in sync.

[0003] Application number CN201721420537.9 discloses a dial indicator fixing device. It includes: a locking sleeve, which is fitted onto the dial indicator's support rod and includes a first external thread, a second external thread, and a contraction portion; a locking nut, including an internal threaded hole and a tapered hole, wherein the internal threaded hole connects to the second external thread, and the tapered hole is fitted onto the contraction portion for contracting the contraction portion to lock the support rod within the locking sleeve; and a fixing block, which is connected to the first external thread of the locking sleeve and fixedly connected to a gauge. The dial indicator fixing device provided by this utility model allows the contraction portion of the locking sleeve to extend into the tapered hole of the locking nut, causing the contraction portion to contract. Because the support rod extends into the locking sleeve, when the locking nut is tightened, the contraction portion continuously contracts, tightly locking the support rod and effectively preventing damage caused by the dial indicator loosening.

[0004] Based on the above patent search and understanding of the application of dial indicator fixing in existing ball bearing abrasion testing machines: Currently, most dial indicators installed in ball bearing abrasion testing machines are fixed to the test position by magnetic attraction, which is prone to displacement and affects the transmission accuracy. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a dial indicator fixing device for a ball bearing abrasion tester, which solves the problem that most dial indicators installed in existing ball bearing abrasion testers are fixed to the test position of the ball bearing abrasion tester by magnetic attraction, which is prone to displacement and affects the transmission accuracy.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A dial indicator fixing device for a ball bearing abrasion tester includes an abrasion tester body; the top rear end of the abrasion tester body is fixedly connected to the bottom middle position of a lifting frame, the front end of the lifting frame is slidably connected to the lower rear end of the tester, a fixing frame is fixedly installed at the lower middle position of the front end of the tester, a bidirectional screw is rotatably connected to the middle position inside the fixing frame, and a clamping plate is slidably connected to the left and right sides of the front end inside the fixing frame, and a threaded hole is opened at the middle position of the side of the clamping plate, and the threaded holes of the two clamping plates are symmetrically designed.

[0008] According to one embodiment of the present invention, a threaded hole is provided at the middle position of the top rear end of the tester, and a motor is fixedly installed at the middle position of the top of the lifting frame.

[0009] According to one embodiment of the present invention, the clamping plate is provided with sliding holes on both the upper and lower sides of its side, and the front end of the fixing frame is provided with a slide rail on both the upper and lower sides. The left and right sides of the two slide rails are respectively located in the sliding holes of the clamping plate.

[0010] According to one embodiment of the present invention, a magnetic absorbing plate is fixedly installed in the middle of the interior of the fixing frame. The magnetic absorbing plate is located in the middle of the two clamping plates. The front end of the magnetic absorbing plate is attached to the dial indicator body, and the rear end of the dial indicator body is provided with an iron plate.

[0011] According to one embodiment of the present invention, the motor shaft is located in the middle of the inside of the lifting frame, and the motor shaft is located in the threaded hole of the tester.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The bidirectional screw inside the fixing frame drives the two clamping plates on both sides to move synchronously in opposite directions through the threaded hole, forming a symmetrical clamping force. Compared with the traditional magnetic fixation, it can avoid the dial indicator from being displaced due to vibration during the test. The slide rail and slide hole on the side of the clamping plate cooperate to ensure that the movement is smooth and without deviation, so that the dial indicator always maintains an accurate detection position, thereby improving the reliability of the wear resistance test data.

[0014] The magnetic plate in the middle of the fixing frame magnetically attracts the iron plate at the rear of the dial indicator, which can initially position the dial indicator before the clamping plate is tightened to prevent shaking during installation. After clamping, the magnetic attraction and mechanical clamping force form a double fixation, further eliminating the loosening of the dial indicator and effectively solving the problem of transmission accuracy deviation caused by insecure fixing in the existing technology. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the dial indicator fixing device of the ball bearing abrasion tester of this utility model.

[0016] Figure 2 This is a top view schematic diagram of the dial indicator fixing device of the ball bearing abrasion tester of this utility model.

[0017] Figure 3 This is a schematic diagram of the left side of the dial indicator fixing device of the ball bearing abrasion tester of this utility model.

[0018] Figure 4 This is a side view of the dial indicator fixing device of the ball bearing abrasion tester of this utility model.

[0019] Figure 5 This is a side view of the disassembled structure of the fixing frame and dial indicator of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Abrasion test machine body; 101. Lifting frame; 102. Tester; 103. Motor; 2. Fixing frame; 201. Double screw; 202. Slide rail; 203. Clamping plate; 204. Magnetic suction plate; 3. Dial gauge body. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The use of terms such as "a," "an," or "the" in this utility model patent application specification and claims does not indicate a quantity limitation, but rather indicates the presence of at least one. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0025] Example:

[0026] As attached Figure 1 To be continued Figure 5 As shown:

[0027] This utility model provides a dial indicator fixing device for a ball bearing abrasion tester, including an abrasion tester body 1; the middle position of the top rear end of the abrasion tester body 1 is fixedly connected to the middle position of the bottom of a lifting frame 101, the front end of the lifting frame 101 is slidably connected to the lower rear end of a tester 102, a fixing frame 2 is fixedly installed at the lower middle position of the front end of the tester 102, a bidirectional screw 201 is rotatably connected to the middle position inside the fixing frame 2, a clamping plate 203 is slidably connected to the left and right sides of the front end inside the fixing frame 2, a threaded hole is opened at the middle position of the side of the clamping plate 203, and the threaded holes of the two clamping plates 203 are symmetrically designed, a threaded hole is opened at the middle position of the top rear end of the tester 102, and a motor 103 is fixedly installed at the middle position of the top of the lifting frame 101.

[0028] The clamping plate 203 has sliding holes on both the upper and lower sides. The front end of the fixed frame 2 has a slide rail 202 on both the upper and lower sides. The left and right sides of the two slide rails 202 are respectively located in the sliding holes of the clamping plate 203. A magnetic suction piece 204 is fixedly installed in the middle of the fixed frame 2. The magnetic suction piece 204 is located in the middle of the two clamping plates 203. The front end of the magnetic suction piece 204 is attached to the dial indicator body 3. The rear end of the dial indicator body 3 is provided with an iron piece. The rotating shaft of the motor 103 is located in the middle of the lifting frame 101, and the rotating shaft of the motor 103 is located in the threaded hole of the tester 102.

[0029] When using:

[0030] Install the fixing frame 2 at the lower front end of the tester 102. When it is necessary to install the dial gauge body 3, first place the dial gauge body 3 in the middle position of the front end inside the fixing frame 2. The front end of the magnetic suction piece 204 is magnetically attracted to the iron piece at the rear end of the dial gauge body 3. Then rotate the bidirectional screw 201. The bidirectional screw 201 drives the two clamping plates 203 to move synchronously towards each other until the two clamping plates 203 clamp the dial gauge body 3 to the middle position, thus completing the fixing of the dial gauge body 3.

[0031] After fixing the dial indicator body 3, the ball bearing abrasion test can be carried out, and the dial indicator body 3 can be tested simultaneously.

[0032] After the test is completed, disassemble the dial indicator body 3, rotate the bidirectional screw 201 in the opposite direction to make the two clamping plates 203 move in opposite directions, release the clamp on the dial indicator body 3, and then remove the dial indicator body 3 from the magnetic suction plate 204. The above steps can achieve the effect of quick installation and quick disassembly.

[0033] Although this application has been described with reference to the foregoing embodiments, those skilled in the art will understand that various changes can be made without departing from the spirit and scope of this application as defined by the appended claims. While this specification contains details of many specific implementations, these should not be construed as limiting the scope of the claims, but rather as descriptions of features specific to particular embodiments. The scope of this application is defined by the appended claims and their equivalents, and is not limited to the embodiments described above.

Claims

1. A dial indicator fixing device for a ball bearing abrasion testing machine, characterized in that: The tester includes a wear resistance tester body (1); the middle position of the top rear end of the wear resistance tester body (1) is fixedly connected to the middle position of the bottom of the lifting frame (101), the front end of the lifting frame (101) is slidably connected to the lower rear end of the tester (102), a fixed frame (2) is fixedly installed at the lower middle position of the front end of the tester (102), a bidirectional screw (201) is rotatably connected to the middle position inside the fixed frame (2), and a clamping plate (203) is slidably connected to the left and right sides of the front end inside the fixed frame (2), and a threaded hole is opened at the middle position of the side of the clamping plate (203), and the threaded holes of the two clamping plates (203) are symmetrically designed.

2. The dial indicator fixing device for a ball bearing abrasion testing machine as described in claim 1, characterized in that: The tester (102) has a threaded hole at the middle of the top rear end, and a motor (103) is fixedly installed at the middle of the top of the lifting frame (101).

3. The dial indicator fixing device for a ball bearing abrasion testing machine as described in claim 1, characterized in that: The clamping plate (203) has sliding holes on both the upper and lower sides. The upper and lower sides of the front end of the fixing frame (2) are provided with a slide rail (202). The left and right sides of the two slide rails (202) are respectively located in the sliding holes of the clamping plate (203).

4. The dial indicator fixing device for a ball bearing abrasion testing machine as described in claim 1, characterized in that: A magnetic absorbing plate (204) is fixedly installed in the middle of the inside of the fixed frame (2). The magnetic absorbing plate (204) is located in the middle of the two clamping plates (203). The dial gauge body (3) is attracted at the front end of the magnetic absorbing plate (204), and an iron plate is provided at the rear end of the dial gauge body (3).

5. The dial indicator fixing device for a ball bearing abrasion testing machine as described in claim 2, characterized in that: The shaft of the motor (103) is located in the middle of the inside of the lifting frame (101), and the shaft of the motor (103) is located in the threaded hole of the tester (102).

Images