CN217277496U - A high performance concrete volume stability detection device for railway construction - Google Patents

Abstract

The utility model discloses a high performance concrete volume stability detection device for railway construction, which comprises a mounting bracket, the inside mounting groove that is provided with of mounting bracket, movable mounting has the rolling disc in the mounting groove, be provided with the sliding tray on the rolling disc, be provided with the mounting panel on the rolling disc, the mounting panel down with the inboard bottom face contact of mounting bracket, be provided with a plurality of grip blocks on the mounting panel, be provided with the salient post on the grip block, lie in on the mounting panel the position of salient post is equipped with the spout, the salient post install in the spout, and its lower extreme end extends to in the sliding tray, the inside top central point of mounting bracket puts and is provided with the pneumatic cylinder, the lower extreme end of pneumatic cylinder is connected with the hydraulic head. This device is through setting up the fixture that can adjust the centre gripping width on the mounting bracket, then through the upper and lower position of clamp plate fixed test piece, gives the test piece load through the pneumatic cylinder, tests the bearing load of this test piece.

Description

A high performance concrete volume stability detection device for railway construction

Technical Field

The utility model relates to a concrete test device field, in particular to high performance concrete volume stability detection device for railway construction.

Background

With the development of science and technology, concrete is widely used in various aspects of production and construction, and with the improvement of construction quality of people, the performance requirements of people on concrete gradually increase, so that high-performance concrete gradually enters the field of view of the public, the performance of a high-performance concrete product needs further tests by people before use, the volume stability of concrete is an important concern, the factors influencing the volume stability of the high-performance concrete are more, and the load, the temperature and the pouring mode greatly influence the volume stability of the high-performance concrete; the concrete for railway construction needs to meet the use requirement of bearing load of the concrete, so that the safe operation of the railway can be ensured, the concrete volume stability performance test experiment needs to be carried out, and the performance of bearing load of a concrete test piece is tested.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a high performance concrete volume stability detection device for railway construction, has solved the problem that does not have the device that carries out the detection to the concrete test piece bearing load when testing concrete volume stability among the current concrete detection device technical field.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a high performance concrete volume stability detection device for railway construction, includes the mounting bracket, be provided with the mounting groove on the inside bottom face of mounting bracket, movable mounting has the rolling disc in the mounting groove, be provided with curved sliding tray on the rolling disc up end, the up end of rolling disc is provided with the mounting panel, the lower terminal surface of mounting panel with the inboard bottom face contact of mounting bracket, it is provided with a plurality of grip blocks to slide on the mounting panel, be provided with the salient post on the bottom face of grip block, be located on the mounting panel the position of salient post is provided with the spout, the salient post install in the spout, and its lower extreme end extends to in the sliding tray, the inside top central point of mounting bracket is provided with the pneumatic cylinder, the lower extreme end of pneumatic cylinder is connected with the hydraulic head.

Furthermore, the inside position symmetry that is close to both sides wall of mounting bracket is provided with the threaded rod, lie in on the threaded rod the position of mounting bracket up end is connected with the motor, two slidable mounting has the clamp plate on the threaded rod, correspond on the up end of clamp plate the position of hydraulic pressure head is provided with the open slot.

Furthermore, dovetail grooves are respectively formed in the two side walls in the mounting frame and correspond to the positions of the pressing plates, dovetail platforms are arranged at the end heads of the two ends of the pressing plates, and the dovetail platforms are installed in the dovetail grooves correspondingly.

Furthermore, a circle of tooth-shaped teeth is arranged on the circumferential surface of the rotating disc, a connecting shaft is movably installed in the installing groove, the end head of the upper end surface of the connecting shaft extends out of the position of the upper end surface of the installing plate, a gear is sleeved on the connecting shaft, and the gear is matched with the tooth-shaped teeth arranged on the rotating disc.

Furthermore, a turntable is arranged at the upper end of the connecting shaft, a locking sleeve is sleeved on the connecting shaft and located between the mounting plate and the turntable, limiting grooves are symmetrically formed in the positions, corresponding to the locking sleeve, of the connecting shaft, a protruding table is arranged on the inner wall of the locking sleeve and corresponds to the limiting grooves, the protruding table is mounted in the limiting grooves, and the locking sleeve can slide along the limiting grooves; be located on the mounting panel the position of locking cover just centers on the connecting axle is provided with a week locking hole, correspond on the bottom face of locking cover the position in locking hole is provided with the locking post, the locking post install in the locking hole.

Furthermore, a boss is arranged on the bottom end surface of the rotating disc, and the bottom end surface of the boss is in contact with the inner bottom end surface of the mounting groove; the bottom face of the rotating disc is further provided with a limiting table, a connecting groove is formed in the position, corresponding to the limiting table, of the bottom face of the mounting groove, and the limiting table is movably mounted in the connecting groove.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. this device is through a plurality of grip blocks that can remove on the mounting bracket, the lateral wall all around of the test piece that the centre gripping was made to the high performance concrete, increase the stability of centre gripping, prevent that the test piece from horizontal or longitudinal movement at load detection in-process, then the upper end of test piece uses the clamp plate fixed, prevent that the test piece from bearing the fragment that the load in-process bursts apart the production and injure operating personnel, be provided with an open slot that can the hydraulic ram head pass through on the up end of clamp plate, be provided with the pneumatic cylinder on the inside top of mounting bracket, the piston head of pneumatic cylinder is down, start-up the pneumatic cylinder, make the hydraulic ram head contact of connecting on the pneumatic cylinder pass through the upper surface of open slot contact test piece, carry out the test piece and bear load detection.

2. Be provided with the mounting groove on the inside bottom face of this device mounting bracket, the rolling disc is installed to the mounting groove internal rotation, be provided with curved sliding tray on the rolling disc, and simultaneously, up end at the mounting groove is provided with the mounting panel, be provided with a plurality of grip blocks on the up end of mounting panel, the last position that lies in the grip block of mounting panel is provided with the spout, be provided with the salient post on the bottom face of grip block, the salient post is installed in the spout, the spout provides the guide effect for the linear motion of grip block, and the lower extreme of salient post extends to in the sliding tray, the rolling disc rotates, make the salient post along sliding tray and spout sliding movement, and then carry out the centre gripping to the test piece, make grip block centre gripping test piece firm and reliable.

3. The device is vertically provided with a connecting shaft in the mounting groove, the connecting shaft is sleeved with a gear, the circumferential surface of the rotating disc is also provided with tooth-shaped teeth, the tooth-shaped teeth can be matched with the gear, the rotating disc can be driven to rotate when the gear rotates, and the gear and the rotating disc can be convenient for moving the clamping plate; the upper end of connecting axle is provided with the carousel, is convenient for more remove the grip block, still sets up the locking cover on the connecting axle simultaneously for the position of fixed grip block. Prevent that the grip block is not hard up, and then influence the test that the test piece bore load.

Drawings

FIG. 1 is a front sectional view of a high performance concrete volumetric stability testing apparatus for railway construction;

FIG. 2 is a top sectional view of a high performance concrete volumetric stability testing apparatus for railway construction;

fig. 3 is a cross-sectional view a-a of fig. 1.

In the figure: 1. a mounting frame; 100. mounting holes; 101. a dovetail groove; 102. mounting grooves; 103. mounting a plate; 1030. a chute; 104. a bearing bore; 105. a locking hole; 2. rotating the disc; 20. a boss; 21. a limiting table; 22. a sliding groove; 3. pressing a plate; 30. an open slot; 4. a threaded rod; 5. a clamping plate; 50. a projecting post; 6. a gear; 7. a turntable; 8. a connecting shaft; 80. a limiting groove; 9. a locking sleeve; 90. a locking post; 10. a limiting member; 11. a hydraulic cylinder; 12. a hydraulic head; 13. a test piece; 14. an electric motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, 2 and 3, the embodiment discloses a high performance concrete volume stability detection device for railway construction, the device includes a mounting bracket 1, a mounting groove 102 is provided on the inner bottom end surface of the mounting bracket 1, a rotating disc 2 is rotatably mounted in the mounting groove 102, a position on the bottom end surface of the rotating disc 2 near the outer end is provided with a limit table 21, a connecting groove is provided on the bottom end surface of the mounting groove 102 corresponding to the position of the limit table 21, the limit table 21 is mounted in the connecting groove to prevent the rotating disc 2 from moving horizontally, and the connecting groove and the limit table 21 play a role in guiding; four sliding grooves 22 are uniformly arranged on the upper surface of the rotating disc 2, the upper end of the rotating disc 2 is provided with a mounting plate 103, the end surface of the mounting plate 103 is provided with a clamping plate 5 in a sliding manner, the position of the bottom end surface of the clamping plate 5, which is close to the end surface of the inner side, is provided with a projecting column 50, the position of the mounting plate 103, which is positioned at the projecting column 50, is correspondingly provided with a sliding groove 1030, the projecting column 50 is arranged in the sliding groove 1030, the sliding groove 1030 plays a linear guide role on the projecting column 50, and the end head of the lower end of the sliding groove extends into the sliding groove 22, when the rotary disk 2 rotates, the protrusion column 50 moves along the sliding groove by the push of the rotary disk 2, meanwhile, the chute 1030 gives linear guide, so that the four clamping plates 5 move synchronously, the inner side surface of the test piece 13 is jointed with the side end surface of the test piece 13 to clamp and fix the test piece 13, the structure is simple and convenient, and the test piece 13 is clamped from the periphery of the test piece 13, so that the fixation is firm and the detection of the load borne by the test piece 13 is not influenced.

Optimally, bosses 20 are arranged on the bottom end face of the rotating disc 2 at the two sides of the limiting table 21, the bottom end face of each boss 20 is in contact with the bottom end face of the corresponding mounting groove 102, friction between the bottom end face of the corresponding mounting groove 102 and the bottom end face of the rotating disc 2 is reduced, and the process of moving the clamping plate 5 is easy and convenient.

Referring to fig. 1, 2 and 3, a bearing hole 104 is formed in a position, close to a lower right corner, on a bottom end surface of an outer side of the mounting block 1, a bearing hole 104 is also formed in a corresponding position on the mounting block 103, bearings are installed in the two bearing holes 104, a connecting shaft 8 is commonly penetrated through inner rings of the two bearings, two limiting members 10 are arranged on the connecting shaft 8, an upper end surface of one limiting member 10 is in contact with a top of the bearing hole 104 formed in the bottom end surface of the mounting block 1, a bottom end surface of the other limiting member 10 is in contact with a bottom end surface inside the bearing hole 104 formed in the mounting block 103, the two limiting members 10 can limit the position of the connecting shaft 8, and the connecting shaft 8 is prevented from being separated from the bearing hole 104, in this embodiment, a retaining ring for a shaft is adopted for the limiting member 10, and certainly, a snap spring for a shaft or a cotter pin or the like can be adopted for the limiting member 10; a gear 6 is sleeved at a position, located in the mounting groove 102, on the connecting shaft 8, tooth-shaped teeth matched with the gear 6 are arranged on the circumferential surface of the corresponding rotating disc 2, the tooth-shaped teeth are meshed with the gear 6, and the rotating gear 6 can drive the rotating disc 2 to rotate to clamp the test piece 13; the connecting shaft 8 is further sleeved with a shaft sleeve, the shaft sleeve is located between the gear 6 and the bottom end face of the mounting groove 102, and the lower end face of the gear 6 is prevented from being directly contacted with the bottom end face of the mounting groove 102, so that the bottom end face of the mounting groove 102 and the lower end face of the gear 6 are damaged, and clamping of the clamping plate 5 on the test piece 13 is affected.

Referring to fig. 1 and 3, the upper end of the connecting shaft 8 extends out of the upper end face of the mounting plate 103, and the turntable 7 is mounted at the end face, so that an operator can easily rotate the connecting shaft 8 by the turntable 7, the process of clamping the test piece 13 is easy, and physical strength is saved; set up locking cover 9 between carousel 7 and the mounting panel 103, the symmetry sets up spacing groove 80 on the connecting axle 8, spacing groove 80 sets up along the axial position of connecting axle 8, the position that corresponds spacing groove 80 on the locking cover 9 inner wall is provided with the protruding platform, the protruding platform is installed in spacing groove 80, and locking cover 8 can be along the certain distance of spacing groove 80 vertical removal, the symmetry is provided with locking post 90 on the lower terminal surface of locking cover 9, the position that corresponds locking post 90 on the mounting panel 102 up end just is provided with a week locking hole 105 round dead eye 104, locking post 90 installs in locking hole 105, rotate as connecting axle 8, when making grip block 5 grasp test piece 13, locking hole 105 and locking post 90's cooperation, can fix connecting axle 8, and then the position of fixed grip block 5.

Referring to fig. 1 and 3, a hydraulic cylinder 11 is installed at a central position of a top end surface inside the mounting frame 1, a piston rod head of the hydraulic cylinder 11 is arranged downward, a hydraulic head 12 is installed at a position of a piston rod head of the hydraulic cylinder 11, and the hydraulic cylinder 11 is used for providing a load for a test piece 13.

Referring to fig. 1 and 2, dovetail grooves 101 are symmetrically arranged on the left and right side walls inside the mounting block 1, the two dovetail grooves 101 are vertically arranged, a pressure plate 3 is slidably arranged in the two dovetail grooves 101, dovetail platforms are respectively arranged at the left and right end heads of the pressure plate 3, the dovetail platforms are respectively arranged in the corresponding dovetail grooves 101, the pressure plate 3 can be prevented from rotating by the cooperation of the dovetail platforms and the dovetail grooves 101, and simultaneously, the mounting block has a guiding function, two mounting holes 100 are symmetrically arranged on the upper and lower opposite end surfaces inside the mounting block 1, a threaded rod 4 is jointly arranged in the two upper and lower opposite mounting holes 100, two limiting parts 10 are arranged on the threaded rod 4, one limiting part 10 is arranged in the lower end surface mounting hole 100 of the mounting block 1, the other limiting part 10 is arranged in the mounting hole 100 arranged on the upper end surface of the mounting block 1, and the two limiting parts 10 can limit the threaded rod 4 from vertically moving, the position of the threaded rod 4 on the mounting bracket 1 is fixed, in this embodiment, the limiting member 10 is a shaft snap spring, and of course, the limiting member 10 may also be a split pin or an elastic collar; the position that corresponds threaded rod 4 on clamp plate 3 all is provided with the screw hole, threaded rod 4 that corresponds is worn to establish in the screw hole, when threaded rod 4 rotates, can drive clamp plate 3 and reciprocate along dovetail 101, the open slot 30 that link up is seted up to the position that corresponds hydraulic ram 12 on the clamp plate 3 up end, open slot 30 is convenient for hydraulic ram 12 contact test piece 13, and simultaneously, the position that clamp plate 3 fixed test piece 13 reciprocated, and, clamp plate 3 can also block test piece 13 because the hydraulic ram gives the load too big and make the fragment that test piece 13 bursts apart the in-process and produce, avoid the measurement personnel to receive the injury.

Referring to fig. 1 and 3, a motor 14 is arranged at the upper end of the threaded rod 4, the motor 14 is located on the upper end face of the mounting frame 1, and the motor 13 provides power for the rotation of the threaded rod 4.

The device is provided with a load sensor at a hydraulic head, the sensor is connected with a display screen, the display screen is arranged on the right end face of the mounting frame 1, and the sensor and the display screen are known and mastered in the technical field, so that the description is not repeated.

The using process of the device is as follows: firstly lifting the locking sleeve 9 to enable the locking column 90 to be separated from the locking hole 105, then rotating the rotary table 7 to enable the threaded rod 4 to rotate, then driving the gear 6 to rotate, thereby driving the rotary table 2 to rotate, the rotary table 2 rotates to drive the clamping plates 5 to be opened by a sufficient distance, placing the test piece 13, then reversely rotating the rotary table 7 to enable the inner side surface of the clamping plate 5 to be attached to the peripheral side wall of the test piece 13, then lowering the locking sleeve 9 to enable the locking column 90 to be clamped into the locking hole 105 to lock the clamping plates 5, then starting the motor 14 to enable the threaded rod to rotate, driving the pressing plate 3 to move downwards until the bottom end surface of the pressing plate 3 is contacted with the upper end surface of the test piece 13, then closing the motor 14, starting the hydraulic cylinder 11, enabling the hydraulic head 12 to be contacted with the test piece 13, observing the test piece 13, immediately closing the hydraulic cylinder 11 when the test piece 13 has cracks, reading load data on the display screen, thereby obtaining the relation between the volume stability and the load of the high-energy and new-energy concrete.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The high-performance concrete volume stability detection device for railway construction is characterized by comprising a mounting frame (1), wherein a mounting groove (102) is formed in the bottom end face inside the mounting frame (1), a rotary disc (2) is movably mounted in the mounting groove (102), an arc-shaped sliding groove (22) is formed in the upper end face of the rotary disc (2), a mounting plate (103) is arranged on the upper end face of the rotary disc (2), the lower end face of the mounting plate (103) is in contact with the bottom end face inside the mounting frame (1), a plurality of clamping plates (5) are slidably arranged on the mounting plate (103), a projecting column (50) is arranged on the bottom end face of each clamping plate (5), a sliding groove (1030) is formed in the position, located on the projecting column (50), of the mounting plate (103), and the projecting column (50) is mounted in the sliding groove (1030), and the lower end head of the hydraulic cylinder extends into the sliding groove (22), a hydraulic cylinder (11) is arranged at the center of the top inside the mounting rack (1), and the lower end head of the hydraulic cylinder (11) is connected with a hydraulic head (12).

2. The high-performance concrete volume stability detection device for railway construction is characterized in that threaded rods (4) are symmetrically arranged at positions close to two side walls inside the mounting frame (1), motors (14) are connected to positions, located on the upper end face of the mounting frame (1), of the threaded rods (4), pressing plates (3) are slidably mounted on the threaded rods (4), and open grooves (30) are formed in positions, corresponding to the hydraulic heads (12), of the upper end face of each pressing plate (3).

3. The high-performance concrete volume stability detection device for railway construction is characterized in that dovetail grooves (101) are respectively arranged on two side walls in the mounting frame (1) and correspond to the positions of the pressing plate (3), dovetail platforms are arranged at the end heads of two ends of the pressing plate (3), and the dovetail platforms are arranged in the dovetail grooves (101).

4. The high-performance concrete volume stability detection device for railway construction is characterized in that a circle of tooth-shaped teeth are arranged on the circumferential surface of the rotating disc (2), a connecting shaft (8) is movably mounted in the mounting groove (102), the upper end face end of the connecting shaft (8) extends out of the upper end face position of the mounting plate (103), a gear (6) is sleeved on the connecting shaft (8), and the gear (6) is matched with the tooth-shaped teeth arranged on the rotating disc (2).

5. The high-performance concrete volume stability detection device for railway construction is characterized in that a turntable (7) is arranged at the upper end of the connecting shaft (8), a locking sleeve (9) is sleeved on the connecting shaft (8), the locking sleeve (9) is positioned between the mounting plate (103) and the turntable (7), limiting grooves (80) are symmetrically arranged at the position, corresponding to the locking sleeve (9), of the connecting shaft (8), a protruding platform is arranged at the position, corresponding to the limiting grooves (80), of the inner wall of the locking sleeve (9), the protruding platform is mounted in the limiting grooves (80), and the locking sleeve (9) can slide along the limiting grooves (80); the mounting plate (103) is located the position of locking cover (9) and centers on connecting axle (8) is provided with a week locking hole (105), correspond on the bottom face of locking cover (9) the position of locking hole (105) is provided with locking post (90), locking post (90) install in locking hole (105).

6. The high-performance concrete volume stability detecting device for railway construction according to claim 1, wherein a boss (20) is provided on a bottom end surface of the rotating disc (2), and a bottom end surface of the boss (20) is in contact with an inner bottom end surface of the mounting groove (102); the bottom end face of the rotating disc (2) is further provided with a limiting table (21), a connecting groove is formed in the position, corresponding to the limiting table (21), of the bottom end face of the mounting groove (102), and the limiting table (21) is movably mounted in the connecting groove.

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