CN212622009U

CN212622009U - Leeb hardness meter

Info

Publication number: CN212622009U
Application number: CN202021652194.0U
Authority: CN
Inventors: 刘春生
Original assignee: Tianjin Juntai Chengshun Machinery Manufacturing Co ltd
Current assignee: Tianjin Juntai Chengshun Machinery Manufacturing Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-02-26
Anticipated expiration: 2030-08-10

Abstract

The utility model belongs to the technical field of the technique that hardness detected and specifically relates to a Leeb hardness tester is related to, including host computer, the data line of setting on the host computer and the detection pen that sets up and deviate from host computer one end at the data line, the symmetry articulates there is the grip block on the detection pen, it has the connecting rod to articulate on the grip block, it is provided with the lantern ring to slide on the detection pen, the connecting rod deviates from the one end of grip block and articulates with the lantern ring, be provided with the locking Assembly who is used for fixed lantern ring position on the lantern ring. The method and the device have the effect of reducing the measurement error.

Description

Leeb hardness meter

Technical Field

The application relates to the technical field of hardness detection, in particular to a Leeb hardness tester.

Background

The Leeb hardness tester is a material hardness testing device and has the basic principle that an impact body with certain mass impacts the surface of a test sample under certain test force action, the impact speed and rebound speed of the impact body at the position 1mm away from the surface of the test sample are measured, and voltage in direct proportion to the speed is induced by utilizing the electromagnetic principle, so that the related information of the hardness is obtained.

The actual field operation shows that the generation of errors of the Leeb hardness tester is often in a certain relation with the operation of field detection personnel. In the detection process, the ball head needs to be ensured to impact the surface to be detected in the vertical direction, so that a detection person needs to control the direction of the Leeb hardness tester by himself. For symmetrical curved surface workpieces such as pipelines and the like which are common in field tests, the verticality of a Leeb hardness tester is often difficult to control well by workers, so that the measurement error is increased.

SUMMERY OF THE UTILITY MODEL

In order to reduce measurement error, the present application provides a Leeb hardness meter.

The application provides a Leeb hardness tester adopts following technical scheme:

the utility model provides a Leeb hardness tester, includes the host computer, sets up the data line on the host computer and sets up the detection pen that deviates from host computer one end at the data line, it has the grip block to detect the symmetry articulated on the pen, it has the connecting rod to articulate on the grip block, it is provided with the lantern ring to slide on the detection pen, the connecting rod deviates from the one end of grip block and articulates with the lantern ring, be provided with the locking Assembly who is used for fixed lantern ring position on the lantern ring.

Through adopting above-mentioned technical scheme, support the test pen on being detected the pipe fitting, make the test pen keep at vertical state. The lantern ring is moved, the lantern ring drives the connecting rod to turn over, and the connecting rod drives the clamping plates to turn over, so that the angle between the two clamping plates is adjusted. The locking assembly can fix the lantern ring, so that the clamping plate is more stable in use. The pipe fitting is clamped in the middle by the two clamping plates, the detection pen is supported, the detection pen can be kept vertical in the detection process, and therefore measurement errors are reduced.

Preferably, the detection pen is provided with sliding grooves on two sides, the inner wall of the lantern ring is provided with a sliding block, and the sliding block is arranged in the sliding grooves in a sliding mode.

Through adopting above-mentioned technical scheme, the slider on the lantern ring slides and sets up in the spout on detecting the pen for the lantern ring is more steady at the in-process that removes, prevents that the lantern ring from taking place crooked.

Preferably, a rack is arranged in the sliding groove on the detection pen, and the locking assembly comprises clamping parts hinged to two sides of the sleeve ring, a limiting bulge fixed at one end of the clamping part and an elastic part used for driving the clamping part to rotate towards the direction close to the rack; the limiting bulge can be meshed with the rack.

Through adopting above-mentioned technical scheme, when removing the lantern ring, rotate clamping part for spacing arch and rack phase separation. After moving the lantern ring to corresponding position, loosen the clamping part, the clamping part can rotate towards the direction of being close to the rack under the effect of elastic component for spacing arch is in the same place with the rack meshing, thereby is fixed with the lantern ring.

Preferably, the elastic component is a torsion spring, the torsion spring is sleeved on the hinged shaft of the clamping part, one end of the torsion spring is fixed with the clamping part, and the other end of the torsion spring is fixed with the hinged shaft of the clamping part.

Through adopting above-mentioned technical scheme, the simple structure of torsional spring, convenient to use, stable in structure can drive the clamping part and rotate towards the direction that is close to the rack for spacing arch is in the same place with rack toothing, and is fixed with the lantern ring.

Preferably, the clamping plate is hinged with a buckle with a Chinese character 'ri', and a belt is arranged between the buckle with the Chinese character 'ri'.

Through adopting above-mentioned technical scheme, wind the belt on the pipe fitting, fix the both ends of belt on the grip block through the letter of Chinese character 'ri' knot for the belt encloses the pipe fitting in the centre with two grip blocks. Under the effect of belt, the grip block can hug closely on the surface of pipe fitting for the grip block is difficult for taking place to rock and slide, and then has promoted the steadiness that detects the pen.

Preferably, the detection pen is fixedly provided with a connecting rope, and one end of the connecting rope departing from the detection pen is fixedly provided with a balancing weight.

Through adopting above-mentioned technical scheme, the balancing weight can hang down naturally under the effect of self gravity, through observing the angle that detects and become between the pen and the connection rope, can be very audio-visual whether be in vertical state of obtaining the detection pen. The staff can adjust the test pen according to connecting the rope for the test pen keeps at vertical state, has reduced measuring error.

Preferably, a clamping sleeve matched with the balancing weight is fixedly arranged on the detection pen.

Through adopting above-mentioned technical scheme, the staff can block the balancing weight on the card sleeve when not using the balancing weight for the balancing weight is difficult for taking place to lose.

Preferably, the clamping plate is evenly distributed with anti-skid rubber particles.

Through adopting above-mentioned technical scheme, anti-skidding micelle has improved the roughness of grip block for when the grip block centre gripping was on the pipe fitting, the grip block is difficult for taking place to skid, has improved the steadiness when the grip block used.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the detection pen is abutted against the detected pipe fitting, so that the detection pen is kept in a vertical state, the pipe fitting is clamped between the two clamping plates, the detection pen is supported, the detection pen can be kept vertical in the detection process, and the measurement error is reduced;

2. the belt is wound on the pipe fitting, the two ends of the belt are fixed on the clamping plates through the Chinese character 'ri' buckles, so that the belt and the two clamping plates surround the pipe fitting in the middle, the clamping plates can be tightly attached to the surface of the pipe fitting under the action of the belt, and the clamping plates are not prone to shaking and sliding.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic sectional view of a test pen according to an embodiment of the present application.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Reference numerals: 11. a host; 12. a data line; 13. a detection pen; 14. a chute; 21. a clamping plate; 22. a connecting rod; 23. a collar; 24. a slider; 25. a Chinese character 'ri' button; 26. a belt; 27. anti-skid colloidal particles; 31. a rack; 32. a clamping portion; 33. a limiting bulge; 34. a torsion spring; 41. connecting ropes; 42. a balancing weight; 43. and (4) a ferrule.

Detailed Description

The technical solutions in the present application will be described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses a Leeb hardness tester. Referring to fig. 1, a richter hardness tester includes a host 11, a data line 12 disposed on the host 11, and a test pen 13 connected to an end of the data line 12 away from the host 11. The detection pen 13 is symmetrically hinged with a clamping plate 21, and the clamping plate 21 is located at one end close to the detection probe. A connecting rod 22 is articulated on the clamping plate 21. A collar 23 is slidably provided on the test pen 13 so that the collar 23 can move along the axis of the test pen 13.

Referring to fig. 1, an end of the connecting rod 22 away from the clamping plate 21 is hinged to the collar 23, so that when the collar 23 moves along the test pen 13, the connecting rod 22 drives the clamping plate 21 to turn over, thereby changing an angle between the two clamping plates 21. Through changing the angle that becomes between two grip blocks 21, can the centre gripping pipe fitting of different pipe diameters, the suitability is better. The lantern ring 23 is provided with a locking assembly, the locking assembly can fix the position of the lantern ring 23 on the detection pen 13, and the stability of the clamping plate 21 in use is guaranteed.

Referring to fig. 2 and 3, sliding grooves 14 with two closed ends are symmetrically formed on both sides of the detection pen 13. The inner wall of the lantern ring 23 is fixedly provided with a sliding block 24, and the sliding block 24 is arranged in the sliding groove 14 in a sliding mode, so that the stability of the lantern ring 23 in moving on the detection pen 13 is guaranteed.

Referring to fig. 2 and 3, a rack 31 is fixedly disposed in the chute 14 on the detection pen 13, and the rack 31 is disposed at the bottom of the chute 14. There is a gap between the slider 24 and the rack 31 so that when the collar 23 is moved, no interference occurs between the slider 24 and the rack 31.

Referring to fig. 2 and 3, the locking assembly includes a clamping portion 32 hinged to both sides of the collar 23, a limiting protrusion 33 integrally formed at one end of the clamping portion 32, and an elastic member. The clamping portions 32 correspond to the racks 31 one by one, and the elastic member can drive the clamping portions 32 to rotate towards the direction close to the racks 31, so that the limiting protrusions 33 are meshed with the racks 31.

Referring to fig. 2 and 3, the elastic member is provided as a torsion spring 34. The torsion spring 34 is sleeved on the hinge shaft of the clamping portion 32, one end of the torsion spring 34 is fixedly connected with the clamping portion 32, and the other end is fixedly connected with the hinge shaft of the clamping portion 32. The torsion spring 34 is always in a stretched state, and the holding portion 32 is rotated in a direction approaching the rack 31 by the elastic force of the torsion spring 34.

Referring to fig. 1, a toggle 25 is hinged to a side of the holding plate 21 away from the detection pen 13, and the toggle 25 is a frame structure. A belt 26 is provided between the two turnbuckles 25. After the belt 26 is wound around the pipe fitting, the two ends of the belt 26 are respectively wound on the buckle 25, so that the belt 26 and the two clamping plates 21 surround the pipe fitting in the middle, and the stability of the detection pen 13 in use is enhanced.

Referring to fig. 1, in order to facilitate observation of the perpendicularity of the detection pen 13 by a worker, a connection rope 41 is fixedly disposed at one end of the detection pen 13 away from the clamping plate 21, and a counterweight 42 is fixedly disposed at one end of the connection rope 41 away from the detection pen 13. When the detection pen is used, the counterweight 42 naturally hangs down under the action of gravity, and when the connecting rope 41 is parallel to the axis of the detection pen 13, the detection pen 13 is kept in a vertical state.

Referring to fig. 1, a ferrule 43 matching with the weight 42 is fixed on the test pen 13. When the worker does not use the counterweight 42, the counterweight 42 can be clamped in the clamping sleeve 43, so that the counterweight 42 is prevented from being lost.

Referring to fig. 1, in order to enhance the stability of the clamping plate 21 clamped on the pipe, a plurality of anti-slip rubber particles 27 are uniformly distributed on the clamping plate 21, so as to increase the friction coefficient of the clamping plate 21, and the clamping plate 21 is not easy to slip when clamping the pipe.

The implementation principle of the embodiment of the application is as follows: during detection, the detection probe end of the detection pen 13 is abutted against the pipe fitting. The clamping portion 32 is pressed so that the stopper protrusion 33 is separated from the rack 31. The collar 23 is moved so that the clamping plate 21 clamps the pipe. The belt 26 is wound around the pipe, and both ends of the belt 26 are fixed to the holding plate 21 by the turnbuckles 25, so that the belt 26 and the holding plate 21 enclose the pipe in the middle.

And taking down the balancing weight 42 from the ferrule 43, observing an angle formed between the connecting rope 41 and the detection pen 13, and determining the perpendicularity of the detection pen 13. The detection pen 13 is adjusted, and when the detection pen 13 is in a vertical state, the detection of the hardness of the pipe fitting can be carried out.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A richter scale durometer, characterized by: including host computer (11), set up data line (12) on host computer (11) and set up detection pen (13) that deviates from host computer (11) one end at data line (12), it has grip block (21) to go up the symmetry hinge in detection pen (13), it has connecting rod (22) to hinge on grip block (21), it is provided with lantern ring (23) to slide on detection pen (13), connecting rod (22) deviate from the one end of grip block (21) and articulate with lantern ring (23), be provided with the locking Assembly who is used for fixed lantern ring (23) position on lantern ring (23).

2. A richter scale hardness tester as claimed in claim 1, wherein: the detection pen is characterized in that sliding grooves (14) are formed in two sides of the detection pen (13), a sliding block (24) is arranged on the inner wall of the sleeve ring (23), and the sliding block (24) is arranged in the sliding grooves (14) in a sliding mode.

3. A richter scale hardness tester according to claim 2, wherein: a rack (31) is arranged in the sliding groove (14) on the detection pen (13), and the locking assembly comprises clamping parts (32) hinged to two sides of the sleeve ring (23), a limiting protrusion (33) fixed at one end of each clamping part (32) and an elastic piece for driving each clamping part (32) to rotate towards the direction close to the rack (31); the limiting protrusion (33) can be meshed with the rack (31).

4. A richter scale hardness according to claim 3, wherein: the elastic component is a torsion spring (34), the torsion spring (34) is sleeved on an articulated shaft of the clamping part (32), one end of the torsion spring (34) is fixed with the clamping part (32), and the other end of the torsion spring is fixed with the articulated shaft of the clamping part (32).

5. A richter scale hardness tester as claimed in claim 1, wherein: the clamping plate (21) is hinged with a Chinese character 'ri' button (25), and a belt (26) is arranged between the Chinese character 'ri' button (25).

6. A richter scale hardness tester as claimed in claim 1, wherein: the detection pen is characterized in that a connecting rope (41) is fixedly arranged on the detection pen (13), and a balancing weight (42) is fixedly arranged at one end, deviating from the detection pen (13), of the connecting rope (41).

7. The Leeb hardness tester according to claim 6, wherein: and a clamping sleeve (43) matched with the balancing weight (42) is fixedly arranged on the detection pen (13).

8. A richter scale hardness tester as claimed in claim 1, wherein: and the clamping plate (21) is uniformly distributed with anti-skid rubber particles (27).