CN210347100U

CN210347100U - Fatigue test device for durability test of thrust rod assembly

Info

Publication number: CN210347100U
Application number: CN201921326644.4U
Authority: CN
Inventors: 王毅辉; 申彦奇; 吴炯
Original assignee: SHIYAN DEWO AUTO PARTS CO Ltd
Current assignee: SHIYAN DEWO AUTO PARTS CO Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-04-17
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses a fatigue test device for thrust rod assembly durability test, which comprises a roof, spacing base is installed to the bottom of roof, fastening screw is installed to the bottom of spacing base, two laser range finding sensors are installed to fastening screw's below, the connecting block is installed to one side of laser range finding sensor, half left fixed ring is installed to the opposite side of connecting block, half right fixed ring is installed to half left fixed ring's opposite side on a left side, two be provided with the deflector in the middle of the laser range finding sensor, two direction stationary blades are installed to the top of deflector, the both ends donation and the connecting rod of direction stationary blade, the telescopic bracket is installed to the one end of connecting rod, the dead lever is installed to one side of direction stationary blade. The utility model discloses an install guiding mechanism and can keep distance rod center pin unanimous with the power drive center pin for the test result is more accurate.

Description

Fatigue test device for durability test of thrust rod assembly

Technical Field

The utility model relates to a fatigue test device technical field of distance rod assembly durability test specifically is a fatigue test device for distance rod assembly durability test.

Background

With the rapid development of social economy, the fatigue test refers to a method for determining sigma-1 of a metal material through a metal material test, drawing an S-N curve of the material, observing fatigue failure phenomena and fracture characteristics, and further determining the fatigue limit of the metal material under a symmetric cycle.

However, the existing thrust rods have certain lengths, and the device for carrying out the fatigue test on the thrust rods cannot keep the centers of the thrust rods consistent with the center of the power, so that the test is not facilitated, and the test result is not accurate; therefore, the existing requirements are not met, and a fatigue testing device for the durability test of the thrust rod assembly is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fatigue test device for distance rod assembly durability is experimental to current distance rod who provides in solving above-mentioned background art all has certain length, and the device that carries out fatigue test to distance rod can't make distance rod center and power center keep unanimous, is unfavorable for going on of test, makes test result inaccuracy scheduling problem.

In order to achieve the above object, the utility model provides a following technical scheme: a fatigue test device for a thrust rod assembly durability test comprises a top plate, wherein a limiting base is installed at the bottom end of the top plate, a fastening screw is installed at the bottom end of the limiting base, two laser ranging sensors are installed below the fastening screw, a connecting block is installed on one side of each laser ranging sensor, a left half fixing ring is installed on the other side of the connecting block, a right half fixing ring is installed on the other side of the left half fixing ring, a guide plate is arranged in the middle of each laser ranging sensor, two guide fixing pieces are installed above the guide plate, two ends of each guide fixing piece contribute to a connecting rod, a telescopic support is installed at one end of each connecting rod, fixing rods are installed on one side of each guide fixing piece, a slide rod slider is installed at the bottom end of one fixing rod, and a slide rod is installed inside the slide, another the lead screw slider is installed to the bottom of dead lever, the internally mounted of lead screw slider has the lead screw, the one end of lead screw is provided with the handle, the inside of deflector is provided with the uide bushing, the internally mounted of uide bushing has the guide post, the base is installed to the bottom of guide post, the pneumatic cylinder is installed to the upper end of base, the board is accepted in the top of pneumatic cylinder, fixed baseplate is installed to the top of accepting the board.

Preferably, the both ends of half solid fixed ring on the left side are laminated with the both ends of half solid fixed ring on the right side completely, half solid fixed ring on the right side is connected through the pivot with half solid fixed ring on the left side.

Preferably, one side of the guide fixing piece is completely attached to one side of the fixing rod, and the guide fixing piece is fixed to the fixing rod through welding.

Preferably, the screw rod sliding block is internally provided with threads and is in threaded connection with the screw rod.

Preferably, the inside of the half solid fixed ring on the left side is provided with the magnetic stripe, the inside of the half solid fixed ring on the right side is also provided with the magnetic stripe.

Preferably, the handle is connected with the screw rod through a clamping groove and a fixing pin.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a pass the distance rod assembly the guiding hole that sets up in the middle of the deflector, fix distance rod assembly upper end on spacing base, fix distance rod assembly lower extreme on fixed baseplate, then rotate the handle that deflector one side set up, make it drive the lead screw rotation, can make the lead screw slider go forward when the lead screw is rotatory, drive its up end face installation's dead lever and dead lever one side installation's direction stationary blade to go forward when going forward, drive the connecting rod to go forward, make the telescopic bracket shrink, drive the connecting rod motion of its other end, indirectly make the slide bar slider move along the slide bar, two direction stationary blades can press from both sides the distance rod assembly tightly at this moment, make it keep perpendicular, guarantee that the experimental test result is more accurate;

2. the utility model discloses a switch on, start hydraulic cylinder, make it drive distance rod assembly left side reciprocating motion, distance its own and fastening screw's distance can be measured to the fixed laser range sensor in the distance rod assembly outside during reciprocating motion, will measure structure feedback to the PLC terminal, once when laser range sensor monitors and surpasss the threshold value for a certain time in succession, the PLC terminal can send the warning, and experimental test is over, simple structure, convenient operation.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

fig. 2 is a top view of the guide plate of the present invention;

fig. 3 is a partial structure sectional view of the left half fixing ring of the present invention.

In the figure: 1. a top plate; 2. a guide post; 3. a guide plate; 4. a fixed base; 5. a limiting base; 6. connecting blocks; 7. fastening screws; 8. a laser ranging sensor; 9. a guide fixing piece; 10. fixing the rod; 11. a slide bar; 12. a slide bar slider; 13. a screw rod; 14. a screw rod slide block; 15. a handle; 16. a hydraulic cylinder; 17. a base; 18. a bearing plate; 19. a guide sleeve; 20. a right half fixing ring; 21. a connecting rod; 22. a telescopic bracket; 23. the left half of the fixing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

The laser ranging sensor 8 (model is TELESKY TFmini) mentioned in the utility model can be purchased from the market or obtained from private customization.

Referring to fig. 1 to fig. 3, the present invention provides an embodiment: a fatigue test device for a thrust rod assembly durability test comprises a top plate 1, wherein a limiting base 5 is installed at the bottom end of the top plate 1, a fastening screw 7 is installed at the bottom end of the limiting base 5, two laser ranging sensors 8 are installed below the fastening screw 7, a connecting block 6 is installed at one side of each laser ranging sensor 8, a left half fixing ring 23 is installed at the other side of the connecting block 6, a right half fixing ring 20 is installed at the other side of the left half fixing ring 23, a guide plate 3 is arranged between the two laser ranging sensors 8, two guide fixing pieces 9 are installed above the guide plate 3, the perpendicularity of the thrust rod assembly is maintained, so that a test result is more accurate, two ends of each guide fixing piece 9 are donated to a connecting rod 21, a telescopic support 22 is installed at one end of the connecting rod 21, a fixing rod 10 is installed at one side of each guide, the inside of slide bar slider 12 installs slide bar 11, lead screw slider 14 is installed to the bottom of another dead lever 10, the internally mounted of lead screw slider 14 has lead screw 13, the one end of lead screw 13 is provided with handle 15, the inside of deflector 3 is provided with uide bushing 19, avoid guide post 2 and deflector 3 direct contact, produce wearing and tearing, lead to the test result inaccuracy, the internally mounted of uide bushing 19 has guide post 2, base 17 is installed to the bottom of guide post 2, pneumatic cylinder 16 is installed to the upper end of base 17, drive the thrust rod assembly and carry out reciprocating motion, provide power for fatigue test, accept board 18 is installed to the top of pneumatic cylinder 16, fixed baseplate 4 is installed to the top of accept board 18.

Further, the two ends of the left half fixing ring 23 are completely attached to the two ends of the right half fixing ring 20, the right half fixing ring 20 is connected with the left half fixing ring 23 through a rotating shaft, the rotating shaft connecting structure is simple, the use is convenient, and the right half fixing ring 20 and the left half fixing ring 23 can be conveniently opened and closed.

Further, one side of the guide fixing piece 9 is completely attached to one side of the fixing rod 10, the guide fixing piece 9 is fixed to the fixing rod 10 through welding, the connecting performance and the stability of the guide fixing piece 9 and the fixing rod 10 are enhanced through welding, and the mechanical performance is good.

Further, the screw threads are arranged inside the screw rod sliding block 14, the screw rod sliding block 14 is connected with the screw rod 13 through the screw threads, the screw threads are simple in use structure and convenient to manufacture, and the screw rod sliding block 14 can move forwards and backwards through the screw threads.

Further, the inside of the left half fixing ring 23 is provided with a magnetic stripe, the inside of the right half fixing ring 20 is also provided with a magnetic stripe, the laser ranging sensor 8 can be fixed on the outer surface of the thrust rod assembly by utilizing the magnetism of the magnetic stripe, and the test is convenient to carry out.

Further, handle 15 and lead screw 13 pass through the draw-in groove and fixed pin are connected, and the draw-in groove is connected conveniently and is installed handle 15 on lead screw 13, and the fixed pin can guarantee to drive the lead screw when handle 15 rotates and rotate together.

The working principle is as follows: when in use, firstly, the thrust rod assembly penetrates through a guide hole arranged in the middle of the guide plate 3, the upper end of the thrust rod assembly is fixed on the limiting base 5, the lower end of the thrust rod assembly is fixed on the fixed base 4, then the handle 15 arranged on one side of the guide plate 3 is rotated to drive the screw rod 13 to rotate, when the screw rod 13 rotates, the screw rod sliding block 14 can move forwards, when the screw rod 13 moves forwards, the fixed rod 10 arranged on the upper end surface of the screw rod assembly and the guide fixing piece 9 arranged on one side of the fixed rod 10 are driven to move forwards, the connecting rod 21 is driven to move forwards, the telescopic bracket 22 is contracted to drive the connecting rod 21 at the other end of the telescopic bracket to move, the slide rod sliding block 12 indirectly moves along the slide rod 11, at the moment, the two guide fixing pieces 9 clamp the thrust rod assembly to keep the thrust rod assembly vertical to ensure that, during reciprocating motion, the distance between the laser ranging sensor 8 fixed on the outer side of the thrust rod assembly and the fastening screw 7 can be measured, the measuring structure is fed back to the PLC terminal, once the laser ranging sensor 8 monitors that the distance continuously exceeds the threshold value for a certain time, the PLC terminal can send an alarm, the test is finished, the structure is simple, and the operation is convenient.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a fatigue test device for thrust rod assembly durability test, includes roof (1), its characterized in that: the bottom of roof (1) is installed with limiting base (5), fastening screw (7) is installed to the bottom of limiting base (5), two laser range finding sensors (8) are installed to the below of fastening screw (7), connecting block (6) is installed to one side of laser range finding sensor (8), half left fixed ring (23) is installed to the opposite side of connecting block (6), half right fixed ring (20) is installed to the opposite side of half left fixed ring (23), two be provided with deflector (3) in the middle of laser range finding sensor (8), two direction stationary sheets (9) are installed to the top of deflector (3), the both ends of direction stationary sheet (9) contribute with connecting rod (21), telescopic bracket (22) is installed to the one end of connecting rod (21), dead lever (10) is installed to one side of direction stationary sheet (9), one of them slide bar slider (12) are installed to the bottom of dead lever (10), the internally mounted of slide bar slider (12) has slide bar (11), another lead screw slider (14) are installed to the bottom of dead lever (10), the internally mounted of lead screw slider (14) has lead screw (13), the one end of lead screw (13) is provided with handle (15), the inside of deflector (3) is provided with uide bushing (19), the internally mounted of uide bushing (19) has guide post (2), base (17) are installed to the bottom of guide post (2), pneumatic cylinder (16) are installed to the upper end of base (17), accept board (18) is installed to the top of pneumatic cylinder (16), fixed baseplate (4) are installed to the top of accepting board (18).

2. The fatigue testing device for the durability test of the thrust rod assembly according to claim 1, wherein: the both ends of half solid fixed ring (23) on the left side are laminated with the both ends of half solid fixed ring (20) on the right side completely, half solid fixed ring (20) on the right side is connected through the pivot with half solid fixed ring (23) on the left side.

3. The fatigue testing device for the durability test of the thrust rod assembly according to claim 1, wherein: one side of the guide fixing piece (9) is completely attached to one side of the fixing rod (10), and the guide fixing piece (9) is fixed with the fixing rod (10) through welding.

4. The fatigue testing device for the durability test of the thrust rod assembly according to claim 1, wherein: the screw rod sliding block (14) is internally provided with threads, and the screw rod sliding block (14) is connected with the screw rod (13) through the threads.

5. The fatigue testing device for the durability test of the thrust rod assembly according to claim 1, wherein: the inside of half solid fixed ring (23) on the left side is provided with the magnetic stripe, the inside of half solid fixed ring (20) on the right side also is provided with the magnetic stripe.

6. The fatigue testing device for the durability test of the thrust rod assembly according to claim 1, wherein: the handle (15) is connected with the screw rod (13) through a clamping groove and a fixing pin.