CN210108860U

CN210108860U - Height adjusting device for soil nail pulling resistance test detection

Info

Publication number: CN210108860U
Application number: CN201920905083.7U
Authority: CN
Inventors: 杜松; 关龙飞
Original assignee: Shandong Jiaye Inspection And Testing Co Ltd
Current assignee: Shandong Jiaye Inspection And Testing Co Ltd
Priority date: 2019-06-15
Filing date: 2019-06-15
Publication date: 2020-02-21
Anticipated expiration: 2029-06-15

Abstract

The utility model relates to a soil nail resistance to plucking experimental technical field discloses a high adjusting device for soil nail resistance to plucking test detects, and its technical scheme main points are including the supporting seat, the supporting seat is link up there is the regulation hole, regulation downthehole rotation is connected with the linkage cover, the inside wall hank of linkage cover has the internal thread, wear to be equipped with in the linkage cover and draw the inner tube, the one end of drawing the inner tube is higher than the linkage cover, and the other end is located the linkage cover, the lateral wall hank of drawing the inner tube has the external screw thread, linkage cover threaded connection is in drawing the inner tube, it wears to be equipped with clamp bolt to draw the one end that the inner tube exceeds the linkage cover, clamp bolt perpendicular to draws the inner tube, its and draw spiro union cooperation between the inner tube, one side of supporting seat is equipped with. The utility model discloses a spiro union cooperation transmission drawing force has the advantage that improves soil nail resistance to plucking bearing capacity test data precision.

Description

Height adjusting device for soil nail pulling resistance test detection

Technical Field

The utility model relates to a soil nail resistance to plucking experimental technical field, in particular to a high adjusting device that is used for soil nail resistance to plucking experimental detection.

Background

After the wall body is manufactured, the anti-pulling bearing capacity of the soil nails in the wall body needs to be detected, when the detection is carried out, an oil pressure hollow jack is usually used for pulling the soil nails, and the maximum anti-pulling bearing capacity of the soil nails is tested along with the gradual increase of the pressure of the oil pressure jack.

However, in the testing process, when the oil jack pulls the soil nail, the drawing force of the oil jack is supplied by the manual hydraulic rod, and the drawing force can not be continuously and stably applied to the soil nail, so that the accuracy of the final data test is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high adjusting device that is used for experimental detection of soil nail resistance to plucking has the advantage that improves soil nail resistance to plucking bearing capacity test data precision.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a high adjusting device for experimental detection of soil nail resistance to plucking, includes the supporting seat, the supporting seat is link up there is the regulation hole, the regulation downthehole rotation is connected with the linkage cover, the inside wall hank of linkage cover has the internal thread, wear to be equipped with in the linkage cover and draw the inner tube, the one end of drawing the inner tube is higher than the linkage cover, and the other end is located the linkage cover, the lateral wall hank of drawing the inner tube has the external screw thread, linkage cover threaded connection is in drawing the inner tube, draw the one end that the inner tube exceeds the linkage cover and wear to be equipped with clamp bolt, clamp bolt perpendicular to draws the inner tube, its and draw between the inner tube spiro union cooperation, one side of supporting seat is.

Through adopting above-mentioned technical scheme, when carrying out the resistance to plucking test of soil nail, will treat that the soil nail of survey passes and draws the inner tube, and the staff screws up clamp bolt, utilizes clamp bolt to fasten soil nail in drawing the inner tube. At the moment, the driving motor is started, the driving motor drives the linkage sleeve to rotate, the linkage sleeve drives the pulling inner tube meshed in the linkage sleeve to move, and the pulling inner tube moves to pull the soil nail, so that the anti-pulling determination of the soil nail is realized. The utility model discloses when detecting the resistance to plucking ability of soil nail, adopt the linkage cover and draw the screw-thread fit between the inner tube and realized continuously and steadily applying the drawing power to the soil nail, have the advantage that improves soil nail resistance to plucking bearing capacity test data precision.

Furthermore, a driving disc is fixedly sleeved at one end, close to the compression bolt, of the linkage sleeve, a plurality of transmission blocks are arranged on the driving disc, the transmission blocks are circumferentially distributed by taking the center of the driving disc as a circle center, a driving sprocket is fixedly sleeved on an output shaft of the driving motor, meshing teeth are arranged on one side, away from the center of the driving disc, of each transmission block, and a transmission chain is meshed between each driving sprocket and each transmission block.

Through adopting above-mentioned technical scheme, driving motor passes through the transmission of drive chain and realizes the drive to the linkage cover, and drive chain possess stronger corrosion resisting property, has longer life.

Furthermore, it has a plurality of mouths that slide to open on the driving-disc, and a plurality of mouths that slide are the circumference with the center of driving-disc and distribute as the centre of a circle, the transmission piece is located the mouth that slides, the below fixedly connected with fastening screw of transmission piece, fastening screw passes the mouth that slides and threaded connection lock nut, be equipped with the tensioning subassembly that is used for tensioning drive chain on the supporting seat.

Through adopting above-mentioned technical scheme, at the course of the work, unscrew lock nut, remove the transmission piece after that for diameter between a plurality of transmission pieces changes, thereby makes the drive-disc drive ratio change, and the staff can adjust the drive-disc drive ratio according to the operating condition of reality correspondingly.

Further, the tensioning assembly includes tensioning screw and feed motor, the upper surface of supporting seat is opened there is the adjustment tank, the length direction perpendicular to drive sprocket's the centre of a circle of adjustment tank and the circle of driving-disc left side prop the seat outside and coaxial be fixed in tensioning screw, the top of adjustment tank is slided and is had the tensioning piece, the tensioning piece gets into the tensioning inslot, tensioning screw passes and threaded connection in tensioning piece, it is connected with tensioning sprocket to rotate on the tensioning piece, tensioning sprocket meshes in drive chain.

By adopting the technical scheme, after the transmission ratio of the driving disc is adjusted, a worker starts the feeding motor, the feeding motor drives the tensioning screw to rotate, the tensioning screw drives the tensioning block to move, the tensioning block drives the tensioning chain wheel to move, so that the tensioning chain wheel is meshed with the transmission chain, and the transmission chain is tensioned.

Furthermore, the side wall of the sliding opening is provided with scale marks, and the '0' scale of the scale marks is the circle center of the driving disc.

Through adopting above-mentioned technical scheme, the adjustment distance datamation that can make the transmission piece of scale mark to make a plurality of transmission piece after adjusting, can keep being a comparatively round circular.

Furthermore, one side of the supporting seat close to the compression bolt is fixedly connected with a supporting plate, a limiting hole is vertically formed in the supporting plate, one end of the drawing inner tube close to the compression bolt is fixedly connected with a limiting rod, and the limiting rod slides in the limiting hole.

Through adopting above-mentioned technical scheme, the restriction pole is restricted in the restriction is downthehole, can prevent to draw the inner tube and follow the rotation of linkage cover and rotate, can reduce and draw the inner tube and produce the possibility of moment of torsion to the soil nail.

Furthermore, two ends of the linkage sleeve are respectively and fixedly sleeved with a rotating bearing, and the rotating bearings are fixedly embedded in the adjusting holes.

Through adopting above-mentioned technical scheme, rolling bearing has improved the smooth and easy degree of linkage cover in the rotation process.

Furthermore, an alarm opening is formed in one end, far away from the compression bolt, of the drawing inner pipe.

Through adopting above-mentioned technical scheme, the warning mouth plays the warning effect, before drawing the inner tube and breaking away from the linkage cover, the warning mouth exposes at first to can remind the staff, close driving motor.

To sum up, the utility model discloses following beneficial effect has: when the anti-pulling capacity of the soil nail is detected, the continuous and stable pulling force is applied to the soil nail by adopting the thread fit between the linkage sleeve and the pulling inner tube, and the anti-pulling capacity test device has the advantage of improving the data precision of the anti-pulling capacity test of the soil nail.

Drawings

Fig. 1 is a schematic structural diagram for embodying the present invention;

FIG. 2 is a cross-sectional view for embodying a rotary bearing;

fig. 3 is a sectional view for embodying a lock nut.

In the figure, 1, a support seat; 11. an adjustment groove; 2. a linkage sleeve; 21. a rotating bearing; 3. drawing the inner tube; 31. a hold-down bolt; 32. a warning port; 4. a drive disc; 41. a sliding port; 411. scale lines; 5. a transmission block; 51. engaging teeth; 52. fastening a screw rod; 521. a lock nut; 6. a drive motor; 61. a drive sprocket; 62. a drive chain; 7. a support plate; 71. a limiting aperture; 72. a restraining bar; 8. a feed motor; 81. tensioning the screw; 82. a tensioning block; 83. a tension sprocket.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): the utility model provides a high adjusting device for experimental detection of soil nail resistance to plucking, refers to fig. 1, including supporting seat 1, supporting seat 1 link up there is the regulation hole. The adjusting hole is provided with a linkage sleeve 2, two ends of the linkage sleeve 2 are respectively fixedly sleeved with a rotary bearing 21 (refer to fig. 2), and the rotary bearings 21 are fixedly embedded in the adjusting hole. The linkage sleeve 2 is rotatably connected in the adjusting hole through a rotating bearing 21.

Referring to fig. 1, the inner side wall of the linkage sleeve 2 is twisted with internal threads, a drawing inner tube 3 is arranged in the linkage sleeve 2 in a penetrating mode, one end of the drawing inner tube 3 is higher than the linkage sleeve 2, and the other end of the drawing inner tube is located in the linkage sleeve 2. The outer side wall of the drawing inner pipe 3 is twisted with external threads, and the linkage sleeve 2 is in threaded connection with the drawing inner pipe 3.

Referring to fig. 1, a plurality of compression bolts 31 are arranged at one end of the drawing inner tube 3 higher than the linkage sleeve 2 in a penetrating manner, and the compression bolts 31 are uniformly distributed along the circumferential direction of the drawing inner tube 3. The compression bolt 31 is perpendicular to the drawing inner tube 3 and is in threaded fit with the drawing inner tube 3. When carrying out the resistance to plucking experiment of soil nail, the soil nail passes and draws inner tube 3, screws up clamp bolt 31 this moment, utilizes clamp bolt 31 to support tightly the soil nail, realizes the stability of soil nail in drawing inner tube 3.

Referring to fig. 1, a driving disk 4 is fixedly sleeved at one end of the linkage sleeve 2 close to the hold-down bolt 31, a plurality of transmission blocks 5 are arranged on the driving disk 4, and the plurality of transmission blocks 5 are circumferentially distributed by taking the center of the driving disk 4 as a circle center. The side of the transmission block 5 facing away from the center of the drive disk 4 is provided with engaging teeth 51.

Referring to fig. 1, a driving motor 6 is connected to one side of the supporting base 1 through a bolt, and a driving sprocket 61 is fixedly sleeved on an output shaft of the driving motor 6. A drive chain 62 is engaged between the drive sprocket 61 and the engaging teeth 51. After the soil nail is fastened in the drawing inner pipe 3, the worker starts the driving motor 6, the driving motor 6 drives the driving chain 62 to move through the driving of the driving chain wheel 61, and the driving chain 62 is meshed with the meshing teeth 51 to realize the rotation of the linkage sleeve 2. The linkage sleeve 2 is meshed with the drawing inner pipe 3 inside the linkage sleeve in the rotating process, so that the drawing inner pipe 3 moves to form drawing force on the soil nail.

Referring to fig. 1, a support plate 7 is fixedly connected to one surface of the support base 1 close to the press bolt 31, and a limiting hole 71 is vertically formed in the support plate 7. One end of the drawing inner pipe 3 close to the compression bolt 31 is fixedly connected with a limiting rod 72, and the limiting rod 72 slides in the limiting hole 71. The setting of limiting hole 71 can restrict drawing inner tube 3, has reduced the possibility that the arm-tie inner tube follows the rotation of linkage cover 2 and produces the moment of torsion to make the drawing test data of soil nail more accurate.

Referring to fig. 1, an alarm opening 32 (refer to fig. 2) is formed at one end of the drawing inner pipe 3, which is far away from the compression bolt 31, and the alarm opening 32 plays a role in alarming, so that when the alarm opening 32 is exposed from the linkage sleeve 2, a worker can immediately stop the driving motor 6, and the possibility that the drawing inner pipe 3 is separated from the linkage sleeve 2 is reduced.

Referring to fig. 1, the driving disc 4 is provided with a plurality of sliding ports 41, the sliding ports 41 are circumferentially distributed around the center of the driving disc 4, and the transmission block 5 is located on the sliding ports 41. A fastening screw 52 (see fig. 3) is fixedly connected to the lower portion of the transmission block 5, the fastening screw 52 passes through the sliding opening 41 and is in threaded connection with a lock nut 521 (see fig. 3), and the lock nut 521 abuts against the lower surface of the drive disc 4.

Referring to fig. 1, during operation, a worker can loosen the lock nut 521 (see fig. 3) and move the transmission blocks 5 so that the diameter of the circle formed by the plurality of transmission blocks 5 becomes smaller, thereby changing the transmission ratio thereof. The staff can realize infinitely variable control's effect according to actual experimental needs.

Referring to fig. 1, the supporting base 1 is provided with a tensioning assembly for tensioning the driving chain 62. The tensioning assembly comprises a tensioning screw 81 and a feed motor 8. The upper surface of the supporting seat 1 is provided with an adjusting groove 11, and the length direction of the adjusting groove 11 is perpendicular to the connecting line between the circle center of the driving sprocket 61 and the circle center of the driving disc 4. The tension screw 81 is rotatably coupled in the adjustment groove 11, and one end thereof protrudes out of the adjustment groove 11. The feeding motor 8 is connected to the outside of the supporting base 1 through a bolt, and the output shaft thereof is coaxially fixed to the tension screw 81.

Referring to fig. 1, a tension block 82 is slid over the adjustment groove 11, the bottom of the tension block 82 enters the tension groove, and a tension screw 81 is threaded through and screwed to the tension block 82. A tension sprocket 83 is rotatably connected to the tension block 82, and the tension sprocket 83 meshes with the drive chain 62. When the diameter between the transmission blocks 5 changes, the tensioning degree of the transmission chain 62 is bound to change, at this time, the worker starts the feeding motor 8, the feeding motor 8 drives the tensioning screw 81 to rotate, the tensioning screw 81 drives the tensioning block 82 to move, the tensioning block 82 drives the tensioning chain wheel 83 to move by moving, and the tensioning chain wheel 83 is abutted against the transmission chain 62 at any time, so that the transmission chain 62 is tensioned.

Referring to fig. 1, in order to keep the plurality of transmission blocks 5 in a complete circle all the time during the moving process, scale lines 411 are marked on the side wall of the sliding opening 41, and the "0" scale of the scale lines 411 is the center of the circle of the driving disc 4. The staff can move the transmission block 5 according to the scale lines 411, so that the plurality of transmission blocks 5 can be kept in a circular shape all the time.

The specific implementation process comprises the following steps: when drawing the test to the soil nail, the staff will wait that the soil nail that detects passes and draws inner tube 3, screws up clamp bolt 31 afterwards, utilizes clamp bolt 31's packing force, realizes the fastening to the soil nail. After the soil nail fastening is accomplished, the staff starts driving motor 6, and driving motor 6 orders about driving-disc 4 to rotate through the transmission of driving sprocket 61, and driving-disc 4 drives linkage cover 2 and rotates, and linkage cover 2 drives spiro union and removes in its inside drawing inner tube 3, draws the in-process that inner tube 3 removed, draws the soil nail to this resistance to plucking detection to the soil nail is realized. In the testing process, the diameter between the transmission blocks 5 can be adjusted by the staff according to the field conditions, so that the effect of stepless adjustment is realized, the soil nails can be measured at various drawing speeds, and the comprehensiveness of data is improved.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a high adjusting device that is used for experimental detection of soil nail resistance to plucking which characterized in that: including supporting seat (1), supporting seat (1) link up there is the regulation hole, the regulation downthehole rotation is connected with linkage cover (2), the inside wall hank of linkage cover (2) has the internal thread, wear to be equipped with in linkage cover (2) and draw inner tube (3), the one end of drawing inner tube (3) is higher than linkage cover (2), and the other end is located linkage cover (2), the lateral wall hank of drawing inner tube (3) has the external screw thread, linkage cover (2) threaded connection is in drawing inner tube (3), draw inner tube (3) and wear to be equipped with clamp bolt (31) above the one end of linkage cover (2), clamp bolt (31) perpendicular to draw inner tube (3), its and draw spiro union cooperation between inner tube (3), one side of supporting seat (1) is equipped with and is used for driving linkage cover (2) pivoted driving motor (6).

2. The height adjusting device for the soil nail pulling resistance test detection of claim 1, wherein: the fixed cover of one end that link sleeve (2) is close to clamp bolt (31) is equipped with driving-disc (4), be equipped with a plurality of transmission pieces (5) on driving-disc (4), a plurality of transmission pieces (5) use the center of driving-disc (4) to be the circumference distribution as the centre of a circle, fixed cover is equipped with drive sprocket (61) on the output shaft of driving motor (6), the one side that transmission piece (5) deviate from driving-disc (4) center is equipped with meshing tooth (51), the meshing has drive chain (62) between drive sprocket (61) and a plurality of transmission pieces (5).

3. The height adjusting device for the soil nail pulling resistance test detection as claimed in claim 2, wherein: the novel transmission device is characterized in that a plurality of sliding openings (41) are formed in the driving disc (4), the sliding openings (41) are circumferentially distributed by taking the center of the driving disc (4) as a circle center, the transmission block (5) is located on the sliding openings (41), fastening screws (52) are fixedly connected to the lower portion of the transmission block (5), the fastening screws (52) penetrate through the sliding openings (41) and are in threaded connection with locking nuts (521), and a tensioning assembly used for tensioning the transmission chain (62) is arranged on the supporting seat (1).

4. The height adjusting device for testing the soil nail pulling resistance test according to claim 3, wherein: the tensioning assembly comprises a tensioning screw rod (81) and a feeding motor (8), an adjusting groove (11) is formed in the upper surface of the supporting seat (1), a connecting line is formed between the circle center of the driving sprocket (61) and the circle center of the driving disc (4) in a length direction of the adjusting groove (11), the tensioning screw rod (81) is rotatably connected into the adjusting groove (11), the feeding motor (8) is connected outside the supporting seat (1) and coaxially fixed on the tensioning screw rod (81), a tensioning block (82) is slid above the adjusting groove (11), the tensioning block (82) enters the tensioning groove, the tensioning screw rod (81) penetrates through the tensioning block (82) and is in threaded connection with the tensioning block, a tensioning sprocket (83) is rotatably connected to the tensioning block (82), and the tensioning sprocket (83) is meshed with the transmission chain (62).

5. The height adjusting device for testing the soil nail pulling resistance test according to claim 3, wherein: the side wall of the sliding opening (41) is provided with scale marks (411), and the '0' scale of the scale marks (411) is the circle center of the driving disc (4).

6. The height adjusting device for the soil nail pulling resistance test detection of claim 1, wherein: one side fixedly connected with backup pad (7) that supporting seat (1) is close to clamp bolt (31), vertical division has limiting hole (71) on backup pad (7), draw one end fixedly connected with restriction pole (72) that inner tube (3) are close to clamp bolt (31), restriction pole (72) slide in limiting hole (71).

7. The height adjusting device for the soil nail pulling resistance test detection of claim 1, wherein: the two ends of the linkage sleeve (2) are respectively fixedly sleeved with a rotating bearing (21), and the rotating bearings (21) are fixedly embedded in the adjusting holes.

8. The height adjusting device for the soil nail pulling resistance test detection of claim 1, wherein: an alarm opening (32) is formed in one end, far away from the compression bolt (31), of the drawing inner pipe (3).