CN218917084U

CN218917084U - Rock point load test device

Info

Publication number: CN218917084U
Application number: CN202223499526.8U
Authority: CN
Inventors: 张永召; 张红远; 曹景; 周玉鹏; 宋浩; 王敬利; 刘家豪; 郝如如
Original assignee: Guangxin Testing And Certification Group Co ltd
Current assignee: Guangxin Testing And Certification Group Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-04-25
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses a rock point load test device, which comprises a bracket, wherein a guide rod is fixedly arranged on the bracket along the vertical direction; the supporting plate is slidably arranged on the guide rod; the first compression head is fixedly arranged on the bracket; the second pressing head is fixedly arranged on the supporting plate and is opposite to the first pressing head; the jack is arranged on the bracket, and the upper end of the jack is propped against the supporting plate; the protective cover is cylindrical, and the upper end of the protective cover is connected with the bracket; the supporting plate is positioned in the protective cover; the supporting component is arranged on the supporting plate and is provided with a supporting part; the supporting component has two working states, and in the first state, the supporting part protrudes upwards to lean against the bottom of the rock to be tested; in the second state, the supporting parts extend to two sides and can be separated from the rock to be tested. The utility model can prevent the scraps from splashing under the condition of not influencing the placement of the rock to be tested.

Description

Rock point load test device

Technical Field

The utility model relates to the technical field of rock point load tests, in particular to a rock point load test device.

Background

The rock point load test is to apply pressure to a rock sample to damage the rock sample by using a point load meter, and is one of important means for obtaining the compressive strength of the rock.

When the test material is damaged, the instant impact force is larger, the material is cracked, the phenomena of chip splashing, hurting people and the like are easily caused, and the equipment is not used as an effective protection device.

In the prior art, a scheme for adding a protection structure around the test device is also disclosed. The current test for detecting rock point load is to load through two conical structures, so that a test piece is easy to move at a loading point and needs to be controlled manually. And after the protective device is arranged, the rock is inconvenient to place.

In summary, how to prevent the splashing of the scraps without affecting the placement of the rock to be tested is one of the important problems to be solved in the art.

Disclosure of Invention

The utility model aims to provide a rock point load test device which solves the defects in the prior art and can prevent fragments from splashing under the condition that the placement of rock to be tested is not affected.

The utility model provides a rock point load test device, which comprises,

the guide rod is fixedly arranged on the bracket along the vertical direction;

the supporting plate is slidably arranged on the guide rod;

the first compression head is fixedly arranged on the bracket;

the second pressing head is fixedly arranged on the supporting plate and is opposite to the first pressing head;

the jack is arranged on the bracket, and the upper end of the jack is propped against the supporting plate;

the protective cover is cylindrical, and the upper end of the protective cover is connected with the bracket; the supporting plate is positioned in the protective cover;

the support component is arranged on the supporting plate and is provided with a support part;

the supporting component has two working states, and in the first state, the supporting part protrudes upwards to be abutted against the bottom of the rock to be tested;

in the second state, the supporting parts extend to two sides and can be separated from the rock to be detected.

The rock point load testing apparatus as described above, wherein, optionally, the stand comprises,

a base;

the lower end of the supporting rod is fixedly arranged on the base;

the top plate is fixedly arranged at the upper end of the supporting rod; the upper end of the guide rod is fixedly arranged on the top plate.

The rock point load test apparatus as described above, wherein optionally the support assembly comprises a fixed block, a sliding block and a folding plate;

the fixed block is fixedly arranged on the supporting plate;

the sliding block is slidably arranged on the supporting plate, and the sliding direction is the horizontal direction;

the folding plate comprises a first connecting part, a second connecting part, a first folded plate and a second folded plate;

the first connecting portion, the first folded plate, the second folded plate and the second connecting portion are sequentially connected, and the first connecting portion and the first folded plate, the first folded plate and the second folded plate, and the second folded plate and the second connecting portion can be folded.

The rock point load testing apparatus as described above, wherein optionally the support assembly further comprises an adjustment screw;

the fixed block or the supporting plate is provided with a threaded hole, and the adjusting screw is in threaded connection with the threaded hole;

the sliding block is provided with a T-shaped groove, an annular groove is formed in the periphery of one end, close to the sliding block, of the adjusting screw, the annular groove is connected to the T-shaped groove, and the adjusting screw can drive the sliding block to slide along the direction close to or far away from the fixed block when rotating.

According to the rock point load test device, the avoidance port is arranged on one side of the protective cover, and the adjusting screw penetrates through the avoidance port.

The rock point load test apparatus as described above, wherein optionally, the end of the adjusting screw remote from the slider is provided with a handle.

The rock point load test device is characterized in that the supporting plate is provided with a strip-shaped hole, and the length direction of the strip-shaped hole is consistent with the length direction of the adjusting screw rod;

the sliding block is provided with a convex block which is in sliding fit with the strip-shaped hole.

The rock point load test apparatus as described above, wherein optionally the protective cover is a transparent cover.

The rock point load test device is characterized in that the protective screen is arranged in the protective cover.

Compared with the prior art, the protective cover is arranged on the outer side of the bracket, so that broken rock fragments can be prevented from splashing to hurt people. Simultaneously, through setting up the support group on the layer board, the supporting part on the supporting component can support the rock that waits to test with the second head that compresses tightly jointly. When the supporting plate moves in place, the supporting component is adjusted to a second state, so that the supporting part is separated from the rock to be tested.

In the specific use, slide the layer board downwards earlier, make the layer board be located the below of protection casing bottommost, adjust supporting component to first state, cooperate the second to compress tightly the rock that the head will await measuring and support in suitable position. The supporting plate is supported by the jack until the first pressing head is abutted on the rock to be tested. The support assembly is controlled to switch to a second state, in which the support assembly is disengaged from the rock to be tested. And continuously driving the tray upwards through the jack so that the second pressing head presses the rock to be detected until the rock to be detected is broken. Therefore, broken rocks can be prevented from being injured by splashing, and meanwhile, the support assembly is arranged, so that the rocks to be measured can be prevented from being placed inconveniently due to the addition of the protective cover.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is a schematic diagram of the overall structure of the present utility model;

FIG. 5 is a perspective view of FIG. 4 at another view angle;

FIG. 6 is a schematic view of the mounting structure of the pallet and the support assembly according to embodiment 1;

FIG. 7 is a perspective view of FIG. 6 at another view angle;

fig. 8 is a schematic view of a rock point load test apparatus proposed in example 2.

Reference numerals illustrate:

the device comprises a 1-bracket, a 2-supporting plate, a 3-first compression head, a 4-second compression head, a 5-jack, a 6-protective cover and a 7-supporting component;

11-guide rods, 12-bases, 13-support rods and 14-top plates;

71-a supporting part, 72-a fixed block, 73-a sliding block and 74-a folding plate;

741-first connection, 742-second connection, 743-first flap, 744-second flap, 745-adjusting screw.

Detailed Description

The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The present utility model proposes the following solution to the problems posed in the background art.

In the case of example 1,

referring to fig. 1 to 7, the present embodiment provides a rock point load testing device, which includes a bracket 1, a supporting plate 2, a first pressing head 3, a second pressing head 4, a jack 5, a protective cover 6 and a supporting component 7. The support 1 is used for supporting the whole device, and layer board 2 is used for bearing the rock that awaits measuring, and first closing head 3 is used for compressing tightly the rock that awaits measuring from the top, and second closing head 4 is used for compressing tightly the rock that awaits measuring from the bottom upwards, and jack 5 is used for driving layer board 2 upwards to remove, and protection casing 6 is used for preventing the injury that the rock splashes and arouses.

Specifically, a guide rod 11 is fixedly arranged on the bracket 1 along the vertical direction; in practice, the guide bar 11 is arranged vertically. The number of the guide rods 11 is two, and the two guide rods 11 are arranged in parallel.

Referring to fig. 1 to 5, the pallet 2 is slidably mounted on the guide bar 11. That is, the pallet 2 can slide up and down along the guide bar 11. In specific implementation, the supporting plate 2 is provided with a sliding hole matched with the guide rod 11.

The first compression head 3 is fixedly arranged on the bracket 1. The first compression head 3 is located between the two guide bars 11. Preferably, the lower end of the first pressing head 3 is conical, and in practical application, a sensor for detecting pressure is arranged on the first pressing head 3. For the arrangement of the sensors, this is consistent with the implementation in the prior art, and can be implemented by a person skilled in the art, and will not be described here again.

The second compressing head 4 is fixedly arranged on the supporting plate 2 and is opposite to the first compressing head 3. In practice, the second compression head 4 is tapered in shape with its tip facing upward. Preferably, the center line of the first compression head 3 and the center line of the second compression head 4 are positioned on the same vertical line.

In use, in order to achieve driving of the pallet 2, this is achieved in this embodiment by means of the jack 5, in particular the jack 5 being arranged on the support 1, the upper end of the jack 5 resting on the pallet 2. In practice, the jack 5 is located below the supporting plate 2, and the supporting plate 2 is driven to move upwards by the jack 5 so as to provide a pressing force to break the rock. In the case of a specific implementation of the present utility model,

in order to prevent broken rocks from splashing to hurt people, a protective cover 6 is further arranged in the embodiment, the protective cover 6 is cylindrical, and the upper end of the protective cover 6 is connected with the bracket 1; the supporting plate 2 is positioned in the protective cover 6, and the bottom of the protective cover 6 is of an opening structure. The supporting plate 2 can slide downwards out of the protective cover 6 along the vertical direction, can slide upwards into the protective cover 6, and realizes the crushing of the rock to be tested in the protective cover 6.

Specifically, the support member 7 is mounted on the pallet 2, and the support member 7 is provided with a support portion 71. The supporting component 7 has the effect that when the rock to be measured is placed, the supporting of the rock to be measured is realized by the cooperation of the supporting component 7 and the second pressing head 4.

More specifically, the support assembly 7 has two operating states, the first state in which the support portion 71 protrudes upwards to rest against the rock bottom to be tested; in the second state, the supporting portion 71 extends to both sides, and can be separated from the rock to be measured.

Referring to fig. 4 and 5, in specific use, the support plate 2 is first moved out of the protective cover 6, the rock to be detected is placed on the second pressing head 4 to adjust the posture of the rock to be detected, the supporting component 7 is adjusted, the top of the supporting portion 71 is abutted against the bottom of the rock, and the second pressing head 4 is matched to realize stable support of the rock to be detected. Then the supporting plate 2 is driven by the jack 5 to slide upwards until the first pressing head 3 and the second pressing head 4 press the rock to be tested from the upper side and the lower side, and the supporting plate 2 is positioned in the protective cover 6. The support assembly 7 is adjusted so that the support portion 71 is in the second position and is disengaged from the rock to be tested. The jack 4 is then controlled to push up the pallet 2 until the rock to be tested is broken. In this way, the broken rock can be prevented from being injured by splashing, and meanwhile, the support assembly is arranged, so that the rock to be measured can be prevented from being placed inconveniently due to the addition of the protective cover 6.

Referring to fig. 1 to 5, in particular, in order to implement the above process, the stand 1 includes a base 12, a support bar 13, and a top plate 14. The lower end of the supporting rod 13 is fixedly installed on the base 12. The base 12 is used for bearing the whole device, the base 12 can be provided with a rectangular metal plate, the supporting rod 13 can be a metal rod, the top plate 14 can also be a rectangular metal plate, and two ends of the supporting rod 13 are fixedly connected with the base 12 and the top plate 14 respectively. In specific implementation, the number of the supporting rods 13 is two, and the two supporting rods 13 are arranged in parallel. In particular, the pallet 2 is located between two support bars 13. A gap is provided between the support bar 13 and the pallet 2 to avoid interference with the pallet 2.

The top plate 14 is fixedly arranged at the upper end of the supporting rod 13; the upper end of the guide rod 11 is fixedly mounted on the top plate 14. Specifically, the two guide bars 11 are located between the two support bars 13. Through the structure, the rock to be measured can be compacted and crushed directly by the jack 5. In particular embodiments, jack 5 may be a manual hydraulic jack.

Specifically, to achieve a further improvement of the support of the rock to be tested, the support assembly 7 comprises a fixed block 72, a sliding block 73 and a folding plate 74. More specifically, the fixing block 72 is fixedly mounted on the pallet 2. Specifically, the fixing block 72 is mounted on the top of the pallet 2, and the fixing block 72 may be integrally formed with the pallet 2.

More specifically, the slide block 73 is slidably mounted on the pallet 2 with the sliding direction being the horizontal direction. In practice, the sliding block 73 is located between the fixed block 72 and the second compression head 4, and the sliding block 73 slides between the fixed block 72 and the second compression head 4.

Referring to fig. 6 and 7, more specifically, the folding plate 74 includes a first connection portion 741, a second connection portion 742, a first folding plate 743, and a second folding plate 744. Further, the first connection portion 741, the first folder 743, the second folder 744, and the second connection portion 742 are connected in order, and the first connection portion 741 and the first folder 743, the first folder 743 and the second folder 744, and the second folder 744 and the second connection portion 742 can be folded. In a specific implementation, the first connection portion 741, the second connection portion 742, and the first flap 743 are all rectangular. In use, the first connection portion 741 is fixedly coupled to the fixed block 72 and the second connection portion 742 is fixedly coupled to the slider 73. The connection between the first connection part 741 and the fixing block 72 may be an adhesive, a welding or a bolting. The connection between the second connection portion 742 and the slider 73 may be an adhesive, a welding, or a bolting.

In specific implementation, the first connection portion 741 and the first folding plate 743, the first folding plate 743 and the second folding plate 744, and the second folding plate 744 and the second connection portion 742 can be folded by hinging or flexible connection. In a specific implementation, the first connection portion 741, the second connection portion 742, the first folding plate 743, and the second folding plate 744 may be hard plates, and the connection manners between the first connection portion 741 and the first folding plate 743, between the first folding plate 743 and the second folding plate 744, and between the second folding plate 744 and the second connection portion 742 are soft connections. Further, the first flap 743 has the same dimensions as the second flap 744.

More specifically, to facilitate controlling the switching of the support assembly 7 between the first state and the second state, the present embodiment is further improved, and in particular, the support assembly 7 further comprises an adjusting screw 745. More specifically, the fixing block 72 or the supporting plate 2 is provided with a threaded hole, and the adjusting screw 745 is in threaded connection with the threaded hole. The sliding block 73 is provided with a T-shaped groove, the periphery of one end of the adjusting screw 745, which is close to the sliding block 73, is provided with an annular groove, the annular groove of the adjusting screw 745 is connected to the T-shaped groove, and the adjusting screw 745 can drive the sliding block 73 to slide along the direction close to or far away from the fixed block 72 when rotating. Thus, the sliding block 73 can be driven to move along the axial direction of the adjusting screw 745 by rotating the adjusting screw 745.

Further, an avoidance port is formed on one side of the protection cover 6, and the adjusting screw 745 passes through the avoidance port. Thus, as pallet 2 moves upward, adjustment screw 745 moves upward from the dodge port. To avoid interference between the adjustment screw 745 and the shield 2.

In particular embodiments, to facilitate rotation of the adjustment screw 745, the end of the adjustment screw 745 remote from the slider 73 is provided with a handle. As such, to facilitate turning of the adjustment bolt 745 by the handle.

In specific implementation, the supporting plate 2 is provided with a strip-shaped hole, and the length direction of the strip-shaped hole is consistent with the length direction of the adjusting screw 745; the sliding block 73 is provided with a protruding block which is in sliding fit with the strip-shaped hole. In this way, the stability of the slider 73 during sliding can be ensured. Meanwhile, compared with the sliding groove, the strip-shaped hole can avoid accumulation of chips.

In particular, the shield 6 is a transparent shield for ease of observation of the entire test procedure. More specifically, the transparent cover is easily impacted by the splashes of chips generated when the rocks are broken, and a protection net is provided in the protection cover 6 in order to reduce the impact on the transparent cover. Correspondingly, a notch is arranged on the protective net corresponding to the avoidance port on the protective cover 6 so as to avoid interference with the adjusting screw 745. In particular implementations, adjustment screw 745 is located on a side facing away from the operator.

Example 2

The present embodiment is a further improvement on the basis of embodiment 1, and the same points are not described in detail, and only the differences are described below.

Referring to fig. 8, the difference between the present embodiment and embodiment 1 is that the number of the supporting members 7 is two, and the two supporting members 7 are symmetrically disposed along the center line of the second pressing head 4.

Correspondingly, the number of the avoidance openings on the protective cover 6 is two, and the avoidance openings are correspondingly arranged. Compared to embodiment 1, this embodiment can provide more stable support for the rock to be tested during the upward movement of the pallet 2.

While the foregoing is directed to embodiments of the present utility model, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. A rock point load test device which is characterized in that: comprising the steps of (a) a step of,

the device comprises a bracket (1), wherein a guide rod (11) is fixedly arranged on the bracket (1) along the vertical direction;

the supporting plate (2) is slidably arranged on the guide rod (11);

the first compression head (3) is fixedly arranged on the bracket (1);

the second pressing head (4) is fixedly arranged on the supporting plate (2) and is opposite to the first pressing head (3);

the jack (5) is arranged on the bracket (1), and the upper end of the jack (5) is propped against the supporting plate (2);

the protective cover (6) is cylindrical, and the upper end of the protective cover (6) is connected with the bracket (1); the supporting plate (2) is positioned in the protective cover (6);

the support assembly (7) is arranged on the supporting plate (2), and a support part (71) is arranged on the support assembly (7);

the supporting component (7) has two working states, and in the first state, the supporting part (71) protrudes upwards to be abutted against the bottom of the rock to be tested;

in the second state, the supporting parts (71) extend to two sides and can be separated from the rock to be tested.

2. The rock point load testing device of claim 1, wherein: the support (1) comprises a support body,

a base (12);

the lower end of the supporting rod (13) is fixedly arranged on the base (12);

the top plate (14), the said top plate (14) is fixedly mounted on the upper end of the said support rod (13); the upper end of the guide rod (11) is fixedly arranged on the top plate (14).

3. The rock point load testing device of claim 1, wherein: the support assembly (7) comprises a fixed block (72), a sliding block (73) and a folding plate (74);

the fixed block (72) is fixedly arranged on the supporting plate (2);

the sliding block (73) is slidably arranged on the supporting plate (2), and the sliding direction is the horizontal direction;

the folding plate (74) comprises a first connecting part (741), a second connecting part (742), a first folding plate (743) and a second folding plate (744);

the first connecting portion (741), the first folded plate (743), the second folded plate (744) and the second connecting portion (742) are sequentially connected, and the first connecting portion (741) and the first folded plate (743), the first folded plate (743) and the second folded plate (744) and the second connecting portion (742) can be folded;

the first connecting part (741) is fixedly connected with the fixed block (72), and the second connecting part (742) is fixedly connected with the sliding block (73).

4. A rock point load testing device according to claim 3, wherein: the support assembly (7) further comprises an adjusting screw (745);

the fixed block (72) or the supporting plate (2) is provided with a threaded hole, and the adjusting screw (745) is in threaded connection with the threaded hole;

the sliding block (73) is provided with a T-shaped groove, an annular groove is formed in the periphery of one end, close to the sliding block (73), of the adjusting screw (745), the annular groove is connected to the T-shaped groove, and the adjusting screw (745) can drive the sliding block (73) to slide along the direction, close to or away from the fixed block (72) when rotating.

5. The rock point load testing device of claim 4, wherein: one side of the protective cover (6) is provided with an avoidance port, and the adjusting screw (745) penetrates through the avoidance port.

6. The rock point load testing device of claim 5, wherein: the end of the adjusting screw (745) away from the sliding block (73) is provided with a handle.

7. The rock point load testing device of claim 4, wherein: the supporting plate (2) is provided with a strip-shaped hole, and the length direction of the strip-shaped hole is consistent with the length direction of the adjusting screw (745);

the sliding block (73) is provided with a convex block which is in sliding fit with the strip-shaped hole.

8. The rock point load testing device of any one of claims 1-5, wherein: the protective cover (6) is a transparent cover.

9. The rock point load testing device of claim 8, wherein: a protective net is arranged in the protective cover (6).