CN212904314U - High-precision low-temperature impact test device convenient for adjusting impact height - Google Patents

Abstract

The utility model relates to a high accuracy low temperature impact test device convenient to adjust and strike height relates to the field of impact test, including placing the bottom plate of sample, be equipped with the kicking block that compresses tightly the sample on the sample, the upper surface of bottom plate rotates and is connected with a pair of guide post, and is a pair of the guide post side is equipped with the screw thread that turns to the same soon, and threaded connection has the backup pad between a pair of guide post, and the backup pad below is equipped with the impact dish that is located the kicking block top, is connected with the locking Assembly with backup pad and impact dish locking in the backup pad. The problem of when the size of impact force is adjusted to needs, have comparatively wasting time and energy is solved. This application has the effect of the regulation impact force size of being convenient for high accuracy.

Description

High-precision low-temperature impact test device convenient for adjusting impact height

Technical Field

The application relates to the field of impact tests, in particular to a high-precision low-temperature impact test device convenient for adjusting impact height.

Background

At present, most electric wires or cables for power and communication are laid in the ground, and a cable tube is a hollow conduit for protecting the electric wires or cables. As a protective tube for a cable, a tube body itself needs to withstand high strength and impact force, and on the other hand, a cable tube inevitably suffers collision during handling and transportation, and the tube is also required to have high impact resistance.

The traditional Chinese patent with publication number CN202453257U discloses an impact resistance testing machine for cable tubes, which comprises a bottom plate, a punch, two guide rods, a heavy hammer positioning disc, a follow-up plate, a positioning rod and a top plate, wherein the two guide rods are respectively and vertically arranged on two sides of the bottom plate, the upper ends of the two guide rods are connected with the top plate horizontally arranged, the follow-up plate is movably sleeved on the two guide rods through two vertical through holes and is fastened on the two guide rods through puller bolts, the heavy hammer positioning disc is fixed at the center of the bottom surface of the follow-up plate, the positioning rod vertically penetrates through holes in the centers of the top plate, the follow-up plate and the heavy hammer positioning disc, the upper end of the positioning rod is fixed on the top plate, the punch is fixed at the lower end of the positioning rod. The weight positioning plate holds the weight. When the device works, a sample to be impacted is placed at the middle part of the bottom plate, the punch is used for tightly pressing the sample on the bottom plate, and then the heavy hammer positioning disc is controlled to release the heavy hammer, so that the heavy hammer falls down to impact the punch, and impact force is applied to the sample; when the size of impact force needs to be adjusted, the puller bolts on the two guide rods are loosened, then the follow-up plate is moved towards the direction close to or far away from the sample, finally, the puller bolts are rotated to tightly abut against the guide rods to complete the movement of the follow-up plate, and the impact force adjustment is completed at the moment.

In view of the above-mentioned related technologies, the inventor believes that when the magnitude of the impact force needs to be adjusted, the two guide rods need to be screwed repeatedly to jack the bolt, which is a defect that time and labor are wasted.

Disclosure of Invention

In order to facilitate the size of adjusting the impact force, the application provides a high accuracy low temperature impact test device convenient to adjust impact height.

The application provides a high accuracy low temperature impact test device convenient to adjust impact height adopts following technical scheme:

the utility model provides a high accuracy low temperature impact test device convenient to adjust and strike height, is equipped with the kicking block that compresses tightly the sample including placing the bottom plate of sample on the sample, and the upper surface of bottom plate rotates and is connected with a pair of guide post, and is a pair of the guide post side is equipped with the screw thread that revolves to the same, and threaded connection has the backup pad between a pair of guide post, and the backup pad below is equipped with the impact dish that is located kicking block top, is connected with the locking Assembly with backup pad and impact dish locking in the backup pad.

By adopting the technical scheme, when the locking assembly is loosened, the impact disc falls down to impact the impact block; when the size of impact force is adjusted to needs, rotate a pair of guide post, the guide post rotates and to drive backup pad and strike the dish and go up and down to the direction of keeping away from or being close to the bottom plate, so when strike the dish when the direction motion of keeping away from the bottom plate, strike the dish and strike the impact force increase of blunting block, when strike the dish to the direction motion of being close to the bottom plate, strike the dish and strike the impact force of blunting block and reduce, so be convenient for adjust the size of impact force, and a pair of guide post rotates the higher position shift that carries on of backup pad and impact dish precision of being convenient for.

Preferably, chain wheels are respectively fixed at the upper ends of the pair of guide columns, and the pair of chain wheels are connected through a chain.

Through adopting above-mentioned technical scheme, when rotating one of them guide post, a guide post rotates and drives another guide post through the sprocket chain and rotate, so can realize that two guide posts rotate simultaneously in step.

Preferably, a control assembly for limiting the rotation of one of the guide posts is connected to the guide post.

Through adopting above-mentioned technical scheme, when the impact force that strikes the impact block of impact dish confirmed, one of them guide post of start control subassembly restriction rotates, because two guide posts pass through the sprocket chain and connect, the guide post of keeping away from control assembly also is difficult to rotate, and the rigidity of backup pad prevents that the staff from leading to the guide post to rotate carelessly this moment to influence backup pad and the lift of impact dish, and then influence the impact force that the impact block was strikeed to the impact dish.

Preferably, the upper ends of the pair of guide posts are rotatably connected with the same top plate, the control assembly comprises a control rod, a first inserting hole formed in one side surface of the top plate and a plurality of second inserting holes formed in one side surface of one guide post, the two ends of the control rod are bent towards the direction close to the guide posts to form inserting portions, and the two inserting portions are respectively inserted into the first inserting hole and one second inserting hole.

Through adopting above-mentioned technical scheme, when needs restriction guide post rotated, only need make two grafting portions peg graft with first spliced eye and one of them second spliced eye respectively, the guide post was difficult to rotate this moment, and easy operation is convenient.

Preferably, the locking subassembly includes a pair of mounting panel of backup pad side fixed, rotates between a pair of mounting panel and is connected with the dwang, and the last fixed surface of backup pad has the fixed block, and the side that the fixed block is close to the dwang is fixed with the spring, and the one end that the fixed block was kept away from to the spring is fixed with the upper end of dwang, and the lower extreme of dwang supports tightly under the effort of spring and strikes the dish.

Through adopting above-mentioned technical scheme, when needs strike the dish and strike towards the piece, to keeping away from the lower extreme that strikes the direction pulling dwang of dish, make the dwang keep away from and strike the dish, strike the dish and can follow the direction whereabouts of connecting rod and strike towards the piece this moment, when the dwang needs with the backup pad locking, make the lower extreme of dwang support tightly under the effort of spring and strike the side of dish, so the operation that the dish was strikeed in the locking is comparatively simple.

Preferably, one end of the rotating rod, which is close to the impact disc, is bent towards the direction close to the impact disc to form a bent part, and the bent part contacts with the lower surface of the impact disc.

Through adopting above-mentioned technical scheme, the lower surface that the kink contact was strikeed the dish gives and strikes a dish holding power for what the dwang was more stable supports tightly to support and strikes the dish.

Preferably, the upper surface of the punching block is fixed with a connecting rod, the upper end of the connecting rod penetrates through the top plate, the side surface of the top plate is in threaded connection with a supporting rod which penetrates through the side wall of the top plate and supports the connecting rod tightly, and the top plate is provided with a positioning assembly which is used for positioning the sample and enabling the sample to be located right below the punching block.

By adopting the technical scheme, the positioning assembly enables the sample to be positioned under the punching block, so that when the punching block descends to tightly abut against the sample, the punching block is easy to align with the sample, the sample does not need to be manually moved for many times until the punching block tightly abuts against the sample, and manpower is saved.

Preferably, the positioning assembly comprises a pair of positioning plates which are respectively same in distance with the punch, a guide groove penetrating through the bottom plate is formed in the upper surface of the bottom plate, a bidirectional screw rod is arranged below the bottom plate, and the lower end of each positioning plate penetrates through the guide groove and is in threaded connection with the bidirectional screw rod.

Through adopting above-mentioned technical scheme, when rotating two-way lead screw, two-way lead screw rotates and drives a pair of locating plate and move along the guide way in opposite directions or deviate from each other, and the guide way plays the effect of direction for the motion of locating plate, and a pair of locating plate moves in opposite directions and presss from both sides tight sample until a pair of locating plate, and the sample is located under the ram this moment, and the operation is comparatively simple.

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

1. when the size of the impact force needs to be adjusted, the pair of guide posts are rotated, the guide posts rotate to drive the supporting plate and the impact disc to lift towards the direction far away from or close to the bottom plate, so that the size of the impact force is convenient to adjust, and the pair of guide posts rotate simultaneously to facilitate the high-precision position movement of the supporting plate and the impact disc;

2. the control assembly limits the guide post to rotate, and prevents workers from carelessly causing the guide post to rotate, so that the lifting of the supporting plate and the impact disc is influenced, and the impact force of the impact disc on the impact punch block is further influenced;

3. the positioning assembly enables the sample to be located under the punching block, so that when the punching block descends to abut against the sample, the punching block is easy to align with the sample, the sample does not need to be moved for many times manually until the punching block abuts against the sample, and labor is saved.

Drawings

FIG. 1 is a schematic view of the overall structure of the experimental apparatus according to the embodiment.

FIG. 2 is a schematic diagram of a locking assembly according to an embodiment.

FIG. 3 is a schematic structural diagram of an embodiment embodying a positioning assembly.

FIG. 4 is a schematic diagram of an embodiment embodying a pin bar configuration.

FIG. 5 is a schematic structural diagram of an embodiment embodying a control assembly.

Description of reference numerals: 1. a top plate; 11. a tightening rod; 2. a support plate; 21. a guide post; 3. a base plate; 31. supporting legs; 4. a connecting rod; 41. punching a block; 42. an impact disk; 5. a locking assembly; 51. a fixing plate; 52. mounting a plate; 53. rotating the rod; 531. a bending section; 54. a fixed block; 55. a spring; 56. a transition plate; 57. connecting ropes; 6. a positioning assembly; 61. positioning a plate; 62. a guide groove; 63. a bidirectional lead screw; 64. a support block; 65. rotating the disc; 66. a hand-held lever; 7. a restraining component; 71. inserting holes; 72. a through hole; 73. a pin rod; 8. a lifting assembly; 81. a thread; 82. a sprocket; 83. a handle; 9. a control component; 91. a control lever; 92. a first plug hole; 93. a second plug hole; 94. a plug-in part.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses high accuracy low temperature impact test device convenient to adjust impact height. Referring to fig. 1, the testing apparatus includes a top plate 1, a supporting plate 2 and a bottom plate 3 which are sequentially arranged from top to bottom, four supporting legs 31 are fixedly connected to the lower surface of the bottom plate 3, and the four supporting legs 31 are respectively located at the positions of four corners of the bottom plate 3. A pair of vertically arranged guide posts 21 is fixedly connected between the top plate 1 and the bottom plate 3, and two ends of the support plate 2 are respectively connected with the guide posts 21.

Referring to fig. 1, the middle of the top plate 1 is connected with a connecting rod 4, the connecting rod 4 vertically and downwardly penetrates through the top plate 1 and the supporting plate 2 in sequence, and one end of the connecting rod 4 far away from the top plate 1 is fixedly connected with a punching block 41. A side surface thread 81 of the top plate 1 is connected with a propping rod 11, and the propping rod 11 penetrates through the side wall of the top plate 1 and props against the connecting rod 4.

An impact disc 42 is arranged between the support plate 2 and the punch block 41, and the connecting rod 4 penetrates through the impact disc 42 to enable the impact disc 42 to vertically slide along the connecting rod 4. A locking assembly 5 is attached to the support plate 2 to lock the support plate 2 to the striking plate 42.

Referring to fig. 1, in operation, the abutting rod 11 is rotated to separate from the connecting rod 4, then the connecting rod 4 and the punching block 41 are moved in a direction away from the bottom plate 3, the sample is prevented from being on the bottom plate 3, the punching block 41 is moved in a direction close to the bottom plate 3, the punching block 41 abuts against the sample, and the abutting rod 11 is rotated to abut against the connecting rod 4. The locking assembly 5 is then controlled to drop the impact plate 42 away from the support plate 2 in a direction approaching the punch 41, and the impact plate 42 impacts the punch 41 to subject the sample to the impact force.

Referring to fig. 2, the locking assembly 5 includes a fixing plate 51 fixedly connected to one side of the support plate 2, a pair of mounting plates 52 fixedly connected to one side of the fixing plate 51 away from the support plate 2, and a rotating rod 53 rotatably connected between the pair of mounting plates 52. The upper surface of the supporting plate 2 is fixedly connected with a fixing block 54, a spring 55 is arranged between the fixing block 54 and the rotating rod 53, two ends of the spring 55 are respectively and fixedly connected with the rotating rod 53 and the fixing block 54, and when the spring 55 is free from external force, the lower end of the rotating rod 53 abuts against the impact disc 42.

One end of the pair of mounting plates 52 far away from the fixed plate 51 is fixedly connected with the same transition plate 56, one side of the rotating rod 53 far away from the support plate 2 is fixedly connected with a connecting rope 57, the connecting rope 57 is located at the lower end of the rotating rod 53, and one end of the connecting rope 57 far away from the rotating rod 53 penetrates through the transition plate 56. When the connecting rope 57 is pulled in a direction away from the support plate 2, the connecting rope 57 drives the lower end of the rotating rod 53 to rotate in a direction away from the impact disc 42 until the rotating rod 53 is separated from the impact disc 42, and the impact disc 42 is descended by the self gravity to impact the impact block 41.

Referring to fig. 2, the lower end of the rotating lever 53 is bent toward the impact disk 42 to form a bent portion 531, and the bent portion 531 contacts the lower surface of the impact disk 42 to give a supporting force to the impact disk 42, so that the rotating lever 53 more stably abuts against the impact disk 42.

Referring to fig. 3, the bottom plate 3 is connected with a positioning assembly 6 for positioning the sample, and the positioning assembly 6 enables the sample to be positioned under the punch block 41, so that the punch block 41 descends to abut against the sample, the punch block 41 is easy to align with the sample, and the sample does not need to be moved for many times manually until the punch block 41 abuts against the sample.

The positioning assembly 6 comprises a pair of positioning plates 61, a guide groove 62 penetrating through the bottom plate 3 is formed in the upper surface of the bottom plate 3, a bidirectional screw 63 is arranged below the bottom plate 3, the lower ends of the pair of positioning plates 61 penetrate through the guide groove 62, the pair of positioning plates 61 are penetrated through by the bidirectional screw 63, and the positioning plates 61 are in threaded connection with the bidirectional screw 63. A pair of supporting blocks 64 is fixedly connected to the lower surface of the bottom plate 3, and the pair of supporting blocks 64 are respectively rotatably connected to two ends of the bidirectional screw 63.

When the bidirectional screw 63 is rotated, the bidirectional screw 63 rotates to drive the pair of positioning plates 61 to move towards or away from each other along the guide grooves 62. The sample is placed on the upper surface of the bottom plate 3 and is positioned between the pair of positioning plates 61, the bidirectional screw 63 is rotated to enable the pair of positioning plates 61 to move oppositely to clamp the sample, and the sample is positioned right below the punch block 41 when the sample is clamped.

Referring to fig. 3, the bidirectional screw 63 is connected to a restricting unit 7 for restricting the rotation of the bidirectional screw 63. One end of the bidirectional screw 63 penetrates through the supporting block 64 and is fixedly connected with a rotating disc 65, one surface, far away from the bidirectional screw 63, of the rotating disc 65 is fixedly connected with a holding rod 66, and the holding rod 66 is located at a position, close to the edge, of the rotating disc 65.

The limiting assembly 7 comprises a plurality of inserting holes 71 formed in the arc side face of the rotating disc 65, a through hole 72 penetrating through the bottom plate 3 is formed in the upper surface of the bottom plate 3, a pin rod 73 is inserted into the through hole 72, the lower end of the pin rod 73 extends out of the through hole 72 and is inserted into one of the inserting holes 71, and at the moment, the bidirectional screw 63 is difficult to rotate. When the bidirectional screw 63 needs to be rotated, the pin rod 73 is pulled in a direction away from the rotating disc 65, so that the pin rod 73 is separated from the insertion hole 71, at the moment, the holding rod 66 is rotated, and the rotating disc 65 and the bidirectional screw 63 can be driven to rotate by rotating the holding rod 66.

Referring to fig. 3 and 4, one end of the pin rod 73 near the insertion hole 71 is gradually contracted toward the insertion hole 71, so that the pin rod 73 is more easily aligned with the insertion hole 71, and the pin rod 73 is easily inserted into the insertion hole 71.

Referring to fig. 1, a lifting assembly 8 for controlling the supporting plate 2 to move toward or away from the bottom plate 3 is connected to the supporting plate 2. When the impact force given to the sample needs to be increased, the lifting assembly 8 is controlled to move the support plate 2 in the direction away from the bottom plate 3, and when the impact force given to the sample needs to be reduced, the lifting assembly 8 is controlled to move the support plate 2 in the direction close to the bottom plate 3.

The lifting assembly 8 comprises threads 81 with the same direction of rotation respectively arranged on the pair of guide posts 21, the pair of guide posts 21 respectively penetrate through two ends of the support plate 2, and the guide posts 21 are connected with the threads 81 of the support plate 2. The upper ends of the two guide posts 21 penetrate through the top plate 1 respectively and are fixedly connected with chain wheels 82, the two chain wheels 82 are connected through a chain, and the upper end of one guide post 21 is fixedly connected with a handle 83.

Referring to fig. 1, when the handle 83 is rotated, the handle 83 rotates to drive the guide posts 21 connected with the handle 83 to rotate, one of the guide posts 21 rotates to drive the other guide post 21 to rotate through the chain of the chain wheel 82, the two guide posts 21 rotate in the same direction to drive the support plate 2 to move in a direction away from or close to the bottom plate 3, so that the impact force of the impact block 41 when the impact plate 42 falls can be adjusted, and the pair of guide posts 21 rotate simultaneously to facilitate the support plate 2 and the impact plate 42 to move at a high-precision position.

Referring to fig. 1, in order to prevent the worker from accidentally touching the handle 83 to rotate the guide posts 21, thereby affecting the lifting and lowering of the support plate 2 and the impact plate 42, a control assembly 9 for limiting the rotation of the guide posts 21 is connected to one of the guide posts 21.

Referring to fig. 5, the control assembly 9 includes a control rod 91, a first insertion hole 92 formed in one side surface of the top plate 1, and a plurality of second insertion holes 93 formed in one side surface of one of the guide posts 21, two ends of the control rod 91 are bent toward a direction close to the guide posts 21 to form insertion portions 94, and the two insertion portions 94 are respectively inserted into the first insertion hole 92 and one of the second insertion holes 93. At this time, the guide post 21 connected to the control lever 91 is hard to rotate, and the guide post 21 located away from the guide post 21 is also hard to rotate indirectly.

When the guide post 21 needs to be rotated, the control rod 91 is pulled to separate the control rod 91 from the first inserting hole 92 and the second inserting hole 93.

The implementation principle of the high-precision low-temperature impact test device convenient for adjusting the impact height is as follows: when the sample clamping device works, a sample is placed on the upper surface of the bottom plate 3 and is positioned between the pair of positioning plates 61, then the pin rod 73 is pulled towards the direction far away from the rotating disc 65 until the pin rod 73 is separated from the inserting hole 71, then the holding rod 66 is rotated, the holding rod 66 rotates to drive the rotating disc 65 and the bidirectional screw 63 to rotate, and the bidirectional screw 63 rotates to drive the pair of positioning plates 61 to move oppositely to clamp the sample;

then, the abutting rod 11 is rotated to enable the second abutting plate to be separated from the connecting rod 4, then the punching block 41 is moved towards the direction close to the bottom plate 3 to enable the punching block 41 to abut against the sample, and then the abutting rod 11 is rotated to enable the abutting rod 11 to abut against the connecting rod 4;

the connecting rope 57 is pulled in the direction away from the supporting plate 2, the connecting rope 57 drives the lower end of the rotating rod 53 to rotate in the direction away from the impact disc 42 until the rotating rod 53 is separated from the impact disc 42, and at the moment, the impact disc 42 is descended by the gravity of the impact disc 42 to impact the impact block 41, so that the test is completed.

When the impact force of the impact ram 41 and the sample needs to be adjusted, the control rod 91 is pulled to separate the control rod 91 from the first inserting hole 92 and the second inserting hole 93, then the handle 83 is rotated to enable the two guide posts 21 to rotate in the same direction to drive the support plate 2 to move in the direction away from or close to the bottom plate 3, when the support plate 2 is adjusted to the required height, the two inserting portions 94 are respectively inserted into the first inserting hole 92 and one of the second inserting holes 93, and at this time, the impact force adjustment of the impact ram 41 and the sample is completed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above 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 (8)

1. The utility model provides a high accuracy low temperature impact test device convenient to adjust impact height, is equipped with impact block (41) that compress tightly the sample including placing bottom plate (3) of sample on the sample, and the upper surface of bottom plate (3) rotates and is connected with a pair of guide post (21), its characterized in that: threads (81) with the same screwing direction are arranged on the side faces of the pair of guide columns (21), a supporting plate (2) is connected with the threads (81) between the pair of guide columns (21), an impact disc (42) located above the punching block (41) is arranged below the supporting plate (2), and a locking assembly (5) for locking the supporting plate (2) and the impact disc (42) is connected onto the supporting plate (2).

2. The high-precision low-temperature impact test device convenient for adjusting the impact height of claim 1, wherein: chain wheels (82) are respectively fixed at the upper ends of the pair of guide columns (21), and the pair of chain wheels (82) are connected through a chain.

3. The high-precision low-temperature impact test device convenient for adjusting the impact height according to claim 2, is characterized in that: one of the guide columns (21) is connected with a control assembly (9) for limiting the rotation of the guide column.

4. The high-precision low-temperature impact test device convenient for adjusting the impact height of claim 3, wherein: the upper ends of the guide columns (21) are rotatably connected with the same top plate (1), the control assembly (9) comprises a control rod (91), first inserting holes (92) and (71) formed in one side face of the top plate (1) and a plurality of second inserting holes (93) and (71) formed in one side face of one guide column (21), two ends of the control rod (91) are bent towards the direction close to the guide columns (21) to form inserting portions (94), and the two inserting portions (94) are respectively inserted into the first inserting holes (92) and (71) and one second inserting hole (93) and (71).

5. The high-precision low-temperature impact test device convenient for adjusting the impact height of claim 1, wherein: locking Assembly (5) are including a pair of mounting panel (52) of backup pad (2) side fixed, rotate between a pair of mounting panel (52) and be connected with dwang (53), the last fixed surface of backup pad (2) has fixed block (54), a side that fixed block (54) are close to dwang (53) is fixed with spring (55), the one end that fixed block (54) were kept away from in spring (55) is fixed with the upper end of dwang (53), the lower extreme of dwang (53) supports under the effort of spring (55) and tightly strikes dish (42).

6. The high-precision low-temperature impact test device convenient for adjusting the impact height of claim 5, wherein: one end of the rotating rod (53) close to the impact disc (42) is bent to the direction close to the impact disc (42) to form a bent part (531), and the bent part (531) is in contact with the lower surface of the impact disc (42).

7. The high-precision low-temperature impact test device convenient for adjusting the impact height according to claim 4, is characterized in that: towards piece (41) upper surface fixed with connecting rod (4), roof (1) is run through to connecting rod (4) upper end, and side screw thread (81) of roof (1) are connected with and run through roof (1) lateral wall and support tight lever (11) of connecting rod (4), are equipped with on roof (1) and fix a position the sample, make the sample be located towards locating component (6) under piece (41).

8. The high-precision low-temperature impact test device convenient for adjusting the impact height of claim 7, wherein: the positioning assembly (6) comprises a pair of positioning plates (61) which are respectively same in distance with the punch block (41), the upper surface of the bottom plate (3) is provided with a guide groove (62) penetrating through the bottom plate (3), a bidirectional screw rod (63) is arranged below the bottom plate (3), and the lower end of each positioning plate (61) respectively penetrates through the guide groove (62) and is connected with the bidirectional screw rod (63) through threads (81).

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