CN108519265B

CN108519265B - Compaction instrument

Info

Publication number: CN108519265B
Application number: CN201810327627.6A
Authority: CN
Inventors: 李铭; 杨菊玲; 郑镇涛; 杨性海; 俞丹敏; 周家早; 王琼; 沈红炎; 林高伟
Original assignee: Zhejiang Yuli Testing Technology Co ltd
Current assignee: Zhejiang Yuli Testing Technology Co ltd
Priority date: 2018-04-12
Filing date: 2018-04-12
Publication date: 2021-03-12
Anticipated expiration: 2038-04-12
Also published as: CN108519265A

Abstract

The invention discloses a compaction instrument, which adopts the technical scheme that: comprises a frame, a workbench, a sample die and a fixing mechanism; the fixing mechanism comprises a positioning rod, a positioning frame and a driving mechanism; the number of the positioning rods is at least two; the positioning frame is connected with all the positioning rods in a sliding manner; the driving mechanism comprises a supporting cylinder, a trigger rod and a transmission mechanism; the supporting cylinder is sleeved on the positioning rod; the trigger rod penetrates through the inside of the workbench; the transmission mechanisms correspond to the positioning rods one by one; the transmission mechanism comprises transmission teeth, a first gear rotationally connected to the inside of the workbench, and a rack arranged on the workbench in a penetrating mode, and only a sample mold needs to be placed on the trigger rod in the using process, so that the trigger rod moves towards the inside of the workbench, and the trigger rod pushes the positioning frame to move upwards through the transmission mechanism. Therefore, the supporting frame does not need to be adjusted manually, and the device is more efficient. When the test sample is detected, the compaction hammer on the compaction device cannot touch the positioning frame, so that the detection is more accurate.

Description

Compaction instrument

Technical Field

The invention relates to the technical field of building detection equipment, in particular to a compaction instrument.

Background

The compaction instrument is a kind of building equipment, mainly used for measuring the optimum water content of compacted soil and its unit volume weight.

At present, chinese patent with publication number CN204789091U discloses a marshall sample electric compacting machine, which comprises a rack and a sample mold fixing mechanism, wherein a workbench is arranged on the rack, and a sample mold is placed on the workbench. The sample mold fixing mechanism comprises a sample mold positioning frame and sample mold positioning rods vertically arranged on a workbench, the sample mold positioning frame comprises a sample mold positioning frame used for being in positioning fit with the upper end of a sample mold and guide plates symmetrically and fixedly arranged on two sides of the sample mold positioning frame, the guide plates are respectively in longitudinal guide fit with the two sample mold positioning rods, spring seats are arranged at the tops of the sample mold positioning rods, telescopic springs are sleeved on the sample mold positioning rods between the guide plates and the spring seats, supporting cylinders are sleeved on the sample mold positioning rods in a rotating mode relative to the lower portions of the guide plates, the upper ends of the supporting cylinders are in supporting fit with the guide plates, inclined plane grooves are formed in the supporting cylinders, guide pins in inclined plane groove guide fit with the supporting cylinders are arranged on the side walls of the sample mold positioning rods, and rotating handles are fixedly arranged on the outer walls of the supporting.

When the electric impact machine needs to be used, the handle needs to be manually rotated, so that the handle and the supporting cylinder integrally rotate around the sample mold positioning rod. In the process, the guide pin is abutted against the inner groove wall of the inclined groove and pushes the handle and the support cylinder to integrally move towards one side far away from the workbench. Meanwhile, the sample mold positioning frame abutted against the support cylinder moves to the side far away from the workbench. And then placing the sample mold filled with the soil to be detected on the workbench, wherein the sample mold is positioned below the sample mold positioning frame. And then, the handle is rotated reversely, so that the handle and the supporting cylinder integrally rotate around the sample mold positioning rod, and the handle and the supporting cylinder integrally move towards one side of the workbench. In the process, the sample mold locating frame moves towards one side of the sample mold under the action of the self gravity and finally abuts against the top end of the sample mold.

In the process of rotating the handle, two supporting cylinders need to be synchronously rotated to ensure that the sample mold positioning frame can slide smoothly on the sample mold positioning rod. However, in the process of manually rotating the supporting cylinders by a user, it is difficult to ensure that the two supporting cylinders synchronously rotate, that is, the sample mold supporting frame moves and is subjected to unsmooth clamping, so that the time for moving and adjusting the sample mold supporting frame is prolonged, and the use efficiency of the compaction tester is reduced to a certain extent.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a compaction instrument which has the advantage of high use efficiency.

The technical purpose of the invention is realized by the following technical scheme: a compaction instrument comprises a rack, a workbench arranged on the rack, a sample mold arranged on the workbench, and a fixing mechanism arranged on the workbench; the fixing mechanism comprises a positioning rod, a positioning frame and a driving mechanism; the number of the positioning rods is at least two, and the positioning rods are uniformly distributed in the circumferential direction by taking the sample die as the center; the positioning frame is connected with all the positioning rods in a sliding manner; the driving mechanism comprises a supporting cylinder, a trigger rod and a transmission mechanism; the supporting cylinders correspond to the positioning rods one by one and are sleeved on the corresponding positioning rods; the trigger rod penetrates through the inside of the workbench, and the end part of the trigger rod is exposed out of the top surface of the workbench; the number of the transmission mechanisms is a plurality and corresponds to the positioning rods one by one; the transmission mechanism comprises a plurality of transmission teeth arranged on the side wall of the trigger rod, a first gear which is rotatably connected inside the workbench and meshed with the transmission teeth, and a rack which is arranged on the workbench in a penetrating manner and connected with the first gear, wherein the rack is exposed out of the top surface of the workbench and is fixedly connected with the supporting cylinder.

Through the technical scheme, when the compacting machine is used, the sample die is moved above the trigger rod and then is controlled to move towards one side of the workbench. When the bottom of the sample mold is contacted with the trigger rod, the sample mold exerts vertical downward pressure on the trigger rod, so that the trigger rod moves towards the inside of the workbench. In the process, the trigger rod drives all the first gears to rotate through the transmission gear, the first gears drive the corresponding racks to move, and the moving direction of the racks is opposite to that of the trigger rod. The rack pushes the supporting cylinders and the positioning frame to move towards one side away from the workbench, and the moving speed of each supporting cylinder is the same, so that the positioning frame is not easy to clamp in the moving process, the adjusting time of the compaction device is shortened to a certain extent, and the using efficiency of the compaction device is improved.

After the trigger bar is completely accommodated in the workbench, the sample mold is controlled to move towards the lower part of the positioning frame. When the sample mold is separated from the trigger rod, the pressure action of the sample mold on the trigger rod disappears, and at the moment, the positioning frame and the support cylinder move towards one side of the workbench under the action of self gravity until the positioning frame is abutted against the top of the sample mold. In the process, the supporting cylinder drives the rack to move towards the inside of the workbench, the rack drives the trigger rod to move towards the outer side of the workbench through the first gear, the end part of the trigger rod is exposed out of the top surface of the workbench, and the sample mold is pressed on the workbench at the moment. The supporting cylinder does not need to be rotated in the process, so that the using process of the compaction device becomes more convenient and quicker, and the using efficiency of the compaction device is improved to a certain extent.

Preferably, an inclined surface is provided on an end portion of the trigger lever exposed from the table, the inclined surface facing the positioning frame.

Through the technical scheme, when one-time detection is finished, the sample die is controlled to move towards one side of the trigger rod. When the sample mold abuts against the inclined surface, the sample mold applies pressure to the inclined surface, and the pressure direction is perpendicular to the inclined surface. Then the trigger bar moves towards the inside of the workbench under the separation action parallel to the sliding direction of the trigger bar generated by pressure decomposition. Meanwhile, the trigger rod drives the supporting cylinder and the positioning frame to integrally move towards one side far away from the workbench through the transmission mechanism, so that the positioning frame is separated from the sample die. The supporting cylinder does not need to be rotated manually when the sample inside the sample die is replaced, so that the compaction device is more convenient and quicker to use, and the use efficiency of the compaction device is improved to a certain extent.

Preferably, the workbench is internally provided with an elastic part, and the elastic part is connected with the end part of the trigger rod extending into the workbench.

Through above-mentioned technical scheme, when sample mould and trigger lever separation, the elastic component can exert vertical ascending elasticity to the trigger lever for positioning frame can contact with the sample mould in the shorter time, has promoted the availability factor of this compaction appearance to a certain extent. And when positioning frame and sample mould contact, positioning frame is great to the pressure that the sample mould was applyed for difficult separation between positioning frame and the sample mould, the use that makes this hit real appearance becomes more smooth and easy, convenient.

Preferably, a support rod is arranged on the inner wall of the support cylinder, a first through hole for the support rod to pass through is formed in the side wall of the positioning rod, and the first through hole extends along the axial direction of the positioning rod.

Through above-mentioned technical scheme, the in-process that a support section of thick bamboo slided on the locating lever, the lateral wall and the interior pore wall butt of first through-hole of straight-bar for a support section of thick bamboo is difficult for rotating for the straight-bar, supports a difficult emergence wearing and tearing of section of thick bamboo inner wall like this, has improved a support section of thick bamboo and has hit the life of reality appearance to a certain extent.

Preferably, a second through hole communicated with the first through hole is formed in the center of the positioning rod, and the rack extends into the second through hole and is connected with the supporting rod.

Through above-mentioned technical scheme, the rack stretches into inside the second through-hole and links to each other with branch, is using this to hit real in-process of appearance like this, and the user is difficult direct and rack contact and play the hindrance effect to the removal of rack for should hit real use of appearance to become more smooth and easy, convenient.

Preferably, the device further comprises a second gear meshed with the rack, the second gear is coaxially connected with the first gear through a connecting shaft which is rotatably connected inside the workbench, and the reference circle diameter of the second gear is larger than that of the first gear.

Through the technical scheme, the second gear is coaxially connected with the first gear, and the reference circle diameter of the second gear is larger than that of the first gear, so that when the trigger rod transmits motion to the rack through the first gear and the second gear, the motion amplitude of the rack is larger than that of the trigger rod. That is to say, the trigger rod only needs to move a short distance to control the rack, the support cylinder and the positioning frame to move a large distance. The time required by the adjustment of the positioning frame is shortened to a certain extent, and the use efficiency of the compaction device is improved.

Preferably, the workbench is spliced with a butt joint block, and an arc-shaped groove is formed in the side wall, facing the positioning frame, of the butt joint block.

Through above-mentioned technical scheme, when needs push away the sample mould to the positioning frame below, promote the sample mould and move to butt joint piece one side for sample mould lateral wall and the laminating of arc recess inner wall. When the outer side wall of the sample die is attached to the inner groove wall of the arc-shaped groove, the sample die is just positioned between the two positioning rods, so that the position of the sample die does not need to be manually adjusted, and the using process of the compaction device becomes more convenient and faster.

In summary, compared with the prior art, the beneficial effects of the invention are as follows:

1. in the using process, only the sample mold is placed on the trigger rod, then the sample mold applies pressure to the trigger rod, so that the trigger rod moves towards the inside of the workbench, meanwhile, the trigger rod drives the support cylinder and the positioning frame to move towards one side far away from the workbench through the transmission mechanism, and thus, a user does not need to manually adjust the support frame, the labor intensity of the compaction device is reduced to a certain extent, and the using efficiency of the compaction device is improved;

2. the transmission mechanism is opposite to the positioning rods one by one, all the supporting cylinders are driven by the trigger rods to move once, and the positioning frame is not prone to inclining in the moving process, so that the movement of the positioning frame is more comfortable, and the using efficiency of the compaction device is improved to a certain extent.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment, which is mainly used for showing a shape mechanism of the embodiment;

FIG. 2 is a sectional view taken along line a-a of FIG. 1, which is mainly used to show the connection of some parts in the embodiment;

fig. 3 is a schematic view of the fixing mechanism, which is mainly used for showing the components of the fixing mechanism.

Reference numerals: 1. a frame; 2. a work table; 3. a sample die; 4. a fixing mechanism; 41. positioning a rod; 42. a positioning frame; 421. positioning rings; 422. connecting sheets; 43. a drive mechanism; 431. a support cylinder; 432. a trigger lever; 433. a transmission mechanism; 4331. a transmission gear; 4332. a first gear; 4333. a rack; 4334. a second gear; 5. an inclined surface; 6. an elastic member; 7. a strut; 8. a first through hole; 9. a second through hole; 10. a connecting shaft; 11. a butting block; 12. an arc-shaped groove; 13. and (6) placing the groove.

Detailed Description

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

A compaction apparatus, as shown in fig. 1 and 2, comprises a frame 1, a worktable 2 arranged on the frame 1, a sample mold 3 placed on the worktable 2, and a fixing mechanism 4 arranged on the worktable 2. The workbench 2 is fixedly connected with the rack 1 in a welding mode, and the top surface of the workbench 2 is a horizontal plane. The top surface of the workbench 2 is provided with a butt joint block 11, and the side wall of the butt joint block 11 is provided with an arc-shaped groove 12. The sample mold 3 is cylindrical, a placing groove 13 for placing a sample is arranged on the end face of the sample mold 3 departing from the workbench 2, and the notch of the placing groove 13 is circular. When the sample mold 3 is positioned in the arc-shaped groove 12, the outer side wall of the sample mold 3 is attached to the inner groove wall of the arc-shaped groove 12. The fixing mechanism 4 is used for pressing the sample mold 3 against the table 2.

As shown in fig. 2 and 3, the fixing mechanism 4 includes a positioning rod 41, a positioning frame 42, and a driving mechanism 43. The number of the positioning rods 41 is two, and the positioning rods 41 are symmetrically distributed on both sides of the sample mold 3, and the positioning rods 41 are cylindrical and extend in the vertical direction. The positioning rod 41 is provided with a second through hole 9 therein, the second through hole 9 extends in the axial direction of the positioning rod 41, and the orifice of the second through hole 9 has a rectangular shape. The side wall of the positioning rod 41 is provided with a first through hole 8, the first through hole 8 penetrates through the side wall of the positioning rod 41, and the first through hole 8 extends along the radial direction of the positioning rod 41. The orifice of the first through hole 8 is elongated, and the orifice of the first through hole 8 extends in the axial direction of the positioning rod 41.

The positioning frame 42 includes a positioning ring 421 and a connecting piece 422. The diameter of the inner ring of the positioning ring 421 is the same as the caliber of the placing groove 13, and the diameter of the outer ring of the positioning ring 421 is larger than the diameter of the end face of the sample mold 3. The number of the connecting pieces 422 is two and the connecting pieces 422 are symmetrically distributed on the outer side wall of the positioning ring 421, the connecting pieces 422 are distributed along the radial direction of the positioning ring 421, and the two connecting pieces 422 are connected on the positioning rod 41 in a one-to-one corresponding sliding manner. The driving mechanism 43 drives the support cylinder 431 to move in the longitudinal direction of the positioning rod 41.

The driving mechanism 43 includes a support cylinder 431, a trigger lever 432, and a transmission mechanism 433. The number of the support cylinders 431 is two and the support cylinders are respectively sleeved on the two positioning rods 41. The supporting cylinder 431 is integrally formed with a strut 7 on the inside, and the strut 7 extends along the radial direction of the supporting cylinder 431, and the strut 7 passes through the first through hole 8. The trigger lever 432 is inserted into the table 2, and an end of the trigger lever 432 is exposed to the top surface of the table 2. The end of the trigger lever 432 exposed to the table 2 is provided with an inclined surface 5, and the inclined surface 5 faces the sample mold 3. The trigger bar 432 is connected with the workbench 2 in a sliding way, and the sliding direction of the trigger bar 432 is vertical. The end of the trigger rod 432 extending into the worktable 2 is connected with an elastic element 6, and the deformation direction of the elastic element 6 is the same as the sliding direction of the trigger rod 432. In this embodiment, the elastic member 6 may be a spring. The transmission mechanism 433 is connected between the supporting cylinder 431 and the transmission mechanism 433 for transmitting the movement of the triggering lever 432 to the supporting cylinder 431, and the moving direction of the supporting cylinder 431 is opposite to the moving direction of the triggering lever 432.

The transmission mechanism 433 includes transmission teeth 4331, a first gear 4332, and a rack 4333. The transmission teeth 4331 are fixedly connected to the side wall of the trigger bar 432, and the number of the transmission teeth 4331 is several and is uniformly distributed along the length direction of the trigger bar 432. The first gear 4332 is rotatably connected to the inside of the table 2, and the length direction of the rotation axis of the first gear 4332 is a horizontal direction. The number of the first gears 4332 is two and corresponds to the two positioning rods 41 one by one. A cylindrical connecting shaft 10 is fixedly connected to the first gear 4332, an axial line of the connecting shaft 10 coincides with a rotational axis direction of the first gear 4332, and the connecting shaft 10 extends toward the positioning rod 41. The end surface of the connecting shaft 10 far away from the first gear 4332 is fixedly connected with a second gear 4334, and the center line of the second gear 4334 coincides with the axis line of the connecting shaft 10. The second gear 4334 is rotatably connected to the working table 2, and the rotation axis of the second gear 4334 is the center line of the second gear 4334. The reference circle diameter of the second gear 4334 is larger than that of the first gear 4332. The rack 4333 is slidably connected inside the second through hole 9 and engaged with the second gear 4334, and the side wall of the rack 4333 abuts against the inner hole wall of the second through hole 9.

The concrete using process of the compaction device is as follows:

the first step is as follows: the sample to be detected is placed inside the sample mold 3 from the notch of the placing groove 13.

The second step is that: the sample mold 3 containing the sample to be tested is transported to above the trigger rod 432.

The third step: controlling the sample mold 3 with the sample to move towards one side of the trigger rod 432; when the bottom of the sample mold 3 comes into contact with the top of the trigger lever 432, the sample mold 3 applies pressure to the trigger lever 432, so that the trigger lever 432 moves toward the inside of the table 2. Meanwhile, the transmission gear 4331 on the trigger lever 432 drives the first gear 4332 to rotate, the first gear 4332 drives the second gear 4334 to rotate through the connecting shaft 10, the second gear 4334 drives the rack 4333 to move, and the rack 4333 drives the supporting cylinder 431 and the positioning frame 42 contacting with the supporting cylinder 431 to move towards the side far away from the workbench 2 through the supporting rod 7.

The fourth step: when the sample mold 3 is in contact with the top surface of the worktable 2, the positioning frame 42 moves to the highest position; at this time, the sample mold 3 is pushed to one side of the abutting block 11, so that the outer side wall of the sample mold 3 is attached to the inner wall of the arc-shaped groove 12 on the abutting block 11. At this time, the sample mold 3 is separated from the trigger lever 432, and the elastic member 6 applies an upward vertical elastic force to the trigger lever 432, so that the trigger lever 432 is moved toward the side away from the table 2. Meanwhile, the trigger lever 432 drives the first gear 4332 to rotate in the opposite direction through the transmission gear 4331, the first gear 4332 drives the second gear 4334 to rotate in the opposite direction through the connection shaft 10, and the second gear 4334 drives the rack 4333 to move toward the side of the working table 2. At the same time, the support cylinder 431 and the positioning frame 42 move toward the table 2 until the positioning frame 42 comes into contact with the sample mold 3 and presses the sample mold 3 against the table 2.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. A compaction instrument comprises a rack (1), a workbench (2) arranged on the rack (1), a sample mold (3) arranged on the workbench (2), and a fixing mechanism (4) arranged on the workbench (2); the fixing mechanism (4) comprises a positioning rod (41), a positioning frame (42) and a driving mechanism (43); the number of the positioning rods (41) is at least two, and the positioning rods are uniformly distributed in the circumferential direction by taking the sample die (3) as the center; the positioning frame (42) is connected with all the positioning rods (41) in a sliding manner; the method is characterized in that: the driving mechanism (43) comprises a supporting cylinder (431), a trigger rod (432) and a transmission mechanism (433); the supporting cylinders (431) correspond to the positioning rods (41) one by one and are sleeved on the corresponding positioning rods (41); the trigger rod (432) is arranged in the workbench (2) in a penetrating mode, and the end portion of the trigger rod (432) is exposed out of the top surface of the workbench (2); the number of the transmission mechanisms (433) is several and the transmission mechanisms correspond to the positioning rods (41) one by one; the transmission mechanism (433) comprises a plurality of transmission teeth (4331) arranged on the side wall of the trigger rod (432), a first gear (4332) rotatably connected inside the workbench (2) and meshed with the transmission teeth (4331), and a rack (4333) arranged on the workbench (2) in a penetrating way and connected with the first gear (4332), wherein the rack (4333) is exposed out of the top surface of the workbench (2) and fixedly connected with the support cylinder (431), the end part of the trigger rod (432) exposed out of the workbench (2) is provided with an inclined surface (5), the inclined surface (5) faces one side of the positioning frame (42), the workbench (2) is internally provided with an elastic part (6), the elastic part (6) is connected with the end part of the trigger rod (432) extending into the workbench (2), the inner wall of the support cylinder (431) is provided with a support rod (7), the side wall of the positioning rod (41) is provided with a first through hole (8) for the support rod (7) to pass through, and first through-hole (8) extend along locating lever (41) axial, locating lever (41) center department sets up second through-hole (9) that are linked together with first through-hole (8), rack (4333) stretch into inside and link to each other with branch (7) second through-hole (9).

2. The compaction apparatus according to claim 1, wherein the compaction apparatus is characterized by: the rotary table further comprises a second gear (4334) meshed with the rack (4333), the second gear (4334) is coaxially connected with the first gear (4332) through a connecting shaft (10) which is rotatably connected inside the working table (2), and the reference circle diameter of the second gear (4334) is larger than that of the first gear (4332).

3. The compaction apparatus according to claim 1, wherein the compaction apparatus is characterized by: the workbench (2) is spliced with a butt joint block (11), and an arc-shaped groove (12) is formed in the side wall, facing the positioning frame (42), of the butt joint block (11).