CN210923290U - Concrete test block compression testing machine - Google Patents
Concrete test block compression testing machine Download PDFInfo
- Publication number
- CN210923290U CN210923290U CN201921587965.XU CN201921587965U CN210923290U CN 210923290 U CN210923290 U CN 210923290U CN 201921587965 U CN201921587965 U CN 201921587965U CN 210923290 U CN210923290 U CN 210923290U
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- concrete test
- test block
- base
- push pedal
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Abstract
The utility model relates to a concrete test block pressure tester, which comprises a base, the fixed plate and the frame that four stands of setting between base and fixed plate constitute and the control box of setting in the arbitrary one side of frame, be provided with the briquetting towards the base through elevating gear on the fixed plate, be provided with down the briquetting towards the fixed plate through pressure device on the base, the briquetting all is provided with the mounting panel in the border department of being close to the briquetting down, one side that the briquetting central point put is kept away from to the mounting panel all is provided with the cylinder down, the depression bar of cylinder runs through the mounting panel and is connected with the push pedal through slider, mutual butt between arbitrary one end tip of every push pedal and the adjacent push pedal, slider can make the relative cylinder of push pedal slide along its length direction, the one end of the adjacent push pedal of push pedal butt is the butt end, the other end is the free end, the utility model discloses.
Description
Technical Field
The utility model belongs to the technical field of the technique of concrete test block check out test set and specifically relates to a concrete test block compression testing machine is related to.
Background
The concrete compression testing machine is a testing machine product which is developed according to national standard GB/T50081-2002 standard of ordinary concrete mechanical property testing method for measuring and judging concrete performance parameters and displaying test data and results, when the concrete compression testing machine is used, the concrete compression testing machine applies pressure to a test sample, destructive test is carried out on the test sample, when the test sample is damaged, the force applied by the concrete compression testing machine to the test sample is recorded, the test can be completed, and a concrete test block needs to be placed at the central position of a compression testing machine base in the test process, so that the stress of the test block is uniform when the test block is pressed.
The Chinese patent with the publication number of CN207336238U discloses a concrete compression testing machine, which comprises a vertically arranged frame and a box body arranged on one side of the frame, wherein the frame is formed by connecting an upper beam and a lower beam into a whole through four upright posts, a protective plate fixedly connected to the upright posts through threads is arranged on the frame, the upper end and the lower end of the protective plate are respectively connected with the upper beam and the lower beam in an abutting mode, a protective door for taking and placing a test piece is pivoted at one end of the protective plate, and a locking assembly for locking the protective door is arranged on the upper beam; this concrete compression testing machine during operation opens the locking subassembly and opens the guard gate, places the concrete test block on the underbeam, then closes the guard gate and locks the locking subassembly, then the upper beam removes to exert pressure to the concrete test block towards the underbeam, until destroying the concrete test block, in-process that the pressure was exerted to the concrete test block at the upper beam, if the test block takes place to splash, the guard plate will block the experimental crushed aggregates that splashes, personal safety in the staff has been protected.
The above prior art solutions have the following drawbacks: after the space between the stand columns is enclosed by the protection plates, a concrete test block is not easy to place in the middle of the upper beam and the lower beam during testing, and deviation is caused to a test result.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can realize the concrete test block compression testing machine of centering automatically.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a concrete test block compression testing machine comprises a rack and a control box, wherein the rack consists of a base, a fixed plate, four stand columns arranged between the base and the fixed plate, the control box is arranged on any one side of the rack, an upper pressing block is arranged on the fixed plate towards the base through a lifting device, a lower pressing block is arranged on the base towards the fixed plate through a compression device, a mounting plate is arranged at the edge close to the upper pressing block, an air cylinder is arranged at one side of the mounting plate far away from the central position of the lower pressing block, a pressing rod of the air cylinder penetrates through the mounting plate and is connected with a push plate through a sliding device, the end part of any one end of each push plate is abutted against the adjacent push plate, the sliding device can enable the push plates to slide relative to the air cylinder along the length direction of the air cylinder, the abutting end of the push plate adjacent, the other end is a free end.
By adopting the technical scheme, when the concrete test block compression testing machine works, a concrete test block is placed on the lower pressing block, the four cylinders simultaneously extend out of the pressing rods to drive the pushing plates to move towards the central position of the lower pressing block, and the abutting ends of the pushing plates move along the length direction of the pushing plates through the sliding devices under the action of the adjacent pushing plates, so that the space enclosed by the four pushing plates is smaller and smaller until the four pushing plates are abutted to the surface of the concrete test block; accomplish the fixed back to the concrete test block, elevating gear drives the briquetting and moves down, makes and goes up briquetting butt concrete test block, then pressure device begins work, drives down the briquetting and removes towards last briquetting and exert pressure to the concrete test block, is destroyed the back as the concrete test block, reads experimental data from the control cabinet, accomplishes this time experiment, has realized the automatic centering of concrete test block on this concrete stone pressure testing machine like this.
The utility model discloses further set up to: the sliding device comprises a guide rail and a sliding groove, wherein the guide rail is arranged on one side of the mounting plate, the pushing plate is close to the guide rail, and the sliding groove is arranged at the end part of the air cylinder pressure rod.
Through adopting above-mentioned technical scheme, the butt end of push pedal receives thrust when adjacent push pedal central point towards briquetting down puts the removal, makes the push pedal deviate from its butt end along its length direction and slides, and this in-process, the guide rail slides in the spout, has realized the slip of push pedal along its length direction like this.
The utility model discloses further set up to: the push plate is arranged along multiple sections of the length direction of the push plate, the sections are mutually sleeved, a tension spring is arranged in the push plate, and the tension spring is fixedly connected with two ends of the push plate along the length direction of the push plate.
Through adopting above-mentioned technical scheme, when the push pedal slided along its length direction, the free end of push pedal will stretch out outside the holding down plate, for avoiding taking place to interfere between push pedal and stand or the operation panel, the push pedal can be followed length direction and contracted if its free end butt to stand or operation panel after stretching out the holding down plate, when the butt end of push pedal no longer receives the thrust that comes from adjacent push pedal, the push pedal will extend automatically under tension spring's effect, the device's reliability has been improved like this.
The utility model discloses further set up to: the mounting plate is fixedly arranged at the position, close to the free end of the push plate, of the side wall of the lower pressing block.
Through adopting above-mentioned technical scheme, because the push pedal moves towards its free end when sliding along its axis, consequently with the one end that the mounting panel setting is close the free end of push pedal at briquetting lateral wall down, can make the push pedal reach the biggest along its axial sliding distance for can the smaller concrete test block of centre gripping volume between four push pedals, enlarged the device's application scope like this.
The utility model discloses further set up to: and a tension spring is arranged between the end part of each air cylinder pressure rod and the free end corresponding to the push plate.
Through adopting above-mentioned technical scheme, the push pedal is when deviating from its butt end along its length direction and removing, and tension spring receives the pulling force and takes place to warp, and when the butt end of push pedal no longer received the thrust that comes from adjacent push pedal, tension spring kick-backs automatically under its self elasticity and makes the push pedal move until the push pedal resets towards its butt end along its length direction, has realized the automatic re-setting of push pedal like this.
The utility model discloses further set up to: the lifting device comprises a screw rod in threaded connection with the center of the fixing plate, a servo motor fixedly arranged on the fixing plate, a driving bevel gear fixedly arranged on a driving shaft of the servo motor and a driven bevel gear in threaded connection with the screw rod, the servo motor is fixedly arranged on one side, away from the base, of the fixing plate, and the driven bevel gear is located on one side, away from the base, of the fixing plate.
By adopting the technical scheme, when the lifting device works, the servo motor rotates to drive the driving bevel gear to rotate, the driving bevel gear drives the driven bevel gear to rotate, and the driven bevel gear which is in threaded connection with the screw rod and rotates drives the screw rod to move along the axial direction of the screw rod, so that the upper pressure plate moves along the axial direction of the screw rod.
The utility model discloses further set up to: the lead screw with go up the briquetting and rotate and be connected, four angle departments of going up the briquetting correspond the diameter of stand all is provided with the arc breach, four the stand is in respectively go up four arc breach departments of briquetting.
Through adopting above-mentioned technical scheme, when servo motor rotatory drive lead screw reciprocated, because the top board rotates with the lead screw to be connected and because four stands are in four arc notches of briquetting respectively, the top board will not rotate along with the rotation of lead screw, but reciprocates along the axial of lead screw under the direction of stand.
The utility model discloses further set up to: the pressure device comprises a hydraulic cylinder arranged on one side, close to the fixed plate, of the base, and the hydraulic cylinder of the hydraulic cylinder is fixedly connected with one side, far away from the upper pressure plate, of the lower pressure plate.
Through adopting above-mentioned technical scheme, when last briquetting butt concrete test block, the pneumatic cylinder stretches out the hydraulic stem and promotes briquetting removal towards the briquetting and exert pressure to the concrete test block down, has realized exerting pressure to the concrete test block like this.
To sum up, the utility model discloses a beneficial technological effect does:
1. the four cylinders simultaneously drive the four push plates to move towards the center of the lower pressing block, so that the automatic centering of the concrete test block on the concrete stone block pressure testing machine is realized;
2. the push plate can be retracted to avoid interference with the upright post or the operating platform, and the push plate automatically extends under the action of the tension spring, so that the reliability of the device is improved;
3. the side wall of the mounting plate is fixedly arranged at one end, close to the free end of the push plate, of the lower pressing block, so that the concrete test block with smaller volume can be clamped between the four push plates, and the application range of the device is enlarged.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of a part of the structure of the present invention, which is intended to show the driving helical gear, the driven helical gear and the pressing device.
Fig. 3 is a schematic view of a part of the structure of the present invention, which is intended to show the push plate, the tension spring, the mounting plate, the guide rail and the sliding groove.
In the figure, 1, a base; 11. a pressure device; 12. pressing the block; 121. mounting a plate; 123. a cylinder; 124. pushing the plate; 1241. a free end; 1242. a butting end; 1243. a tension spring; 2. a fixing plate; 21. a lifting device; 211. a screw rod; 212. a servo motor; 213. a driving gear; 214. a driven gear; 22. pressing the blocks; 221. an arc-shaped notch; 3. a column; 4. a console; 5. a sliding device; 51. a guide rail; 52. a chute; 6. a tension spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, in order to disclose the concrete test block compression testing machine of the present invention, the machine comprises a frame and a console 4 arranged on any one side of the frame, the frame comprises a base 1, a fixed plate 2 and four columns 3 arranged between the base 1 and the fixed plate 2, the fixed plate 2 is provided with an upper compression block 22 towards the base 1 through a lifting device 21, and the base 1 is provided with a lower compression block 12 towards the fixed plate 2 through a compression device 11; in this embodiment, the base 1, the fixing plate 2, the upper pressing block 22, and the lower pressing block 12 are coaxially disposed, and the four columns 3 are disposed at four corners of the base 1 in a central symmetry manner with respect to the center of the base 1.
Referring to fig. 2, the pressure means 11 comprises a hydraulic cylinder disposed on the side of the base 1 close to the fixed plate 2.
Referring to fig. 2, the lifting device 21 includes a screw 211 screwed to a central position of the fixing plate 2, a servo motor 212 fixedly disposed on the fixing plate 2, a driving helical gear 213 fixedly disposed on a driving shaft of the servo motor 212, and a driven helical gear 214 screwed to the screw 211, the servo motor 212 is fixedly disposed on a side of the fixing plate 2 away from the base 1, and the driven helical gear 214 is disposed on a side of the fixing plate 2 away from the base 1; in this embodiment, a protection casing covering the driving helical gear 213 and the driven helical gear 214 is disposed on one side of the fixing plate 2 away from the base 1.
Referring to fig. 2, the screw 211 is rotatably connected with the upper pressing block 22, the four corners of the upper pressing block 22 are provided with arc notches 221 corresponding to the diameters of the upright posts 3, and the four upright posts 3 are respectively located at the four arc notches 221 of the upper pressing block 22; in this embodiment, a thrust roller shaft is disposed between the screw 211 and the upper press block 22, a groove is disposed on one side of the upper press block 22 away from the base 1 corresponding to the thrust roller bearing, the thrust roller bearing is disposed in the groove, an outer ring of the thrust roller bearing is fixedly connected with the upper press block 22, one end of the screw 211 close to the base 1 is fixedly connected with an inner ring of the thrust roller bearing, and an arc of the arc notch 221 is the same as an arc of the column 3 along a cross section of a horizontal plane.
Referring to fig. 3, the lower pressing block 12 is provided with a mounting plate 121 at a position close to the edge of the upper pressing block 22, the mounting plate 121 is fixedly disposed at one end of the side wall of the lower pressing block 12 close to the free end 1241 of the push plate 124, one side of the mounting plate 121 away from the center position of the lower pressing block 12 is provided with an air cylinder 123, the pressure lever of the air cylinder 123 penetrates through the mounting plate 121 and is connected with the push plates 124 through the sliding device 5, the end of any one end of each push plate 124 is abutted against the adjacent push plate 124, the sliding device 5 can enable the push plate 124 to slide relative to the air cylinder 123 along the length direction thereof, one end of the push plate 124 abutted against the adjacent push plate; in this embodiment, the lower press block 12 and the upper press block 22 are both square, and the unit elongation of the four cylinders 123 is the same.
Referring to fig. 3, the sliding device 5 includes a guide rail 51 disposed on one side of the push plate 124 close to the mounting plate 121 and a sliding chute 52 disposed at the end of the pressing rod of the cylinder 123 corresponding to the guide rail 51, the push plate 124 is disposed along multiple sections of the length direction thereof, the sections are sleeved with each other, a tension spring 1243 is disposed in the push plate 124, and the tension spring 1243 is fixedly connected to two ends of the push plate 124 along the length direction thereof.
The implementation principle of the embodiment is as follows: when the concrete test block compression testing machine works, a concrete test block is placed on the lower compression block 12, the four cylinders 123 simultaneously extend out of the compression rods to drive the push plate 124 to move towards the central position of the lower compression block 12, and the abutting end 1242 of the push plate 124 moves away from the abutting end 1242 of the push plate along the length direction under the action of the adjacent push plate 124 through the sliding device 5; the space enclosed by the four push plates 124 is smaller and smaller as the pressure rod of the air cylinder 123 extends longer and longer until the four push plates 124 are all abutted to the surface of the concrete test block, in the process, the unit extension amounts of the air cylinders 123 oppositely arranged are the same, so that the center positions of the concrete test block and the center position of the lower pressing block 12 can be positioned on the same vertical straight line by the four push plates 124, the concrete test block is positioned at the center position of the lower pressing block 12, the free ends 1241 of the push plates 124 extend out of the lower pressing block 12, if the free ends 1241 of the air cylinders 123 are abutted to the upright 3 or the operating platform, the multiple push plates 124 contract, and the mounting plate 121 serves as a support for the air cylinders 123; after the concrete test block is fixed, the lifting device 21 drives the upper pressing block 22 to move downwards, at the moment, the servo motor 212 rotates to drive the driving bevel gear 213 to rotate, the driving bevel gear 213 rotates to drive the driven bevel gear 214 to rotate so as to drive the screw rod 211 to rotate, in the process, the screw rod 211 and the upper pressing block 22 rotate relatively, and the upper pressing block 22 slides along the upper line of the four upright posts 3 due to the four arc-shaped notches 221; then the pressure device 11 starts to work, the hydraulic cylinder stretches out of the hydraulic rod to drive the lower pressing block 12 to move towards the upper pressing block 22 to apply pressure to the concrete test block, after the concrete test block is damaged, experimental data are read from the control console 4, the test is completed, the servo motor 212 drives the screw rod 211 to move away from the lower pressing block 12, then the air cylinder 123 retracts the pressing rod, the elastic pushing plate 124 of the tension spring 6 slides towards the butt end 1242 of the tension spring along the length direction of the elastic pushing plate and then returns to the original position, and the multi-section pushing plate 124 of the tension spring 1243 stretches again.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a concrete test block compression testing machine, includes by base (1), fixed plate (2) and sets up base (1) with frame that four stands (3) between fixed plate (2) constitute is in with the setting control cabinet (4) of the arbitrary one side of frame, be provided with briquetting (22) towards base (1) through elevating gear (21) on fixed plate (2), be provided with briquetting (12) down through pressure device (11) on base (1) towards fixed plate (2), its characterized in that: lower briquetting (12) all is provided with mounting panel (121) in the border department that is close briquetting (22) on, mounting panel (121) are kept away from one side that lower briquetting (12) central point put all is provided with cylinder (123), the depression bar of cylinder (123) runs through mounting panel (121) and be connected with push pedal (124) through slider (5), every arbitrary one end tip of push pedal (124) and adjacent mutual butt between push pedal (124), slider (5) can make push pedal (124) are relative cylinder (123) slide along its length direction, push pedal (124) butt is adjacent the one end of push pedal (124) is butt end (1242), and the other end is free end (1241).
2. The concrete test block compression testing machine of claim 1, wherein: the sliding device (5) comprises a guide rail (51) arranged on one side, close to the mounting plate (121), of the push plate (124) and a sliding groove (52) arranged at the end part of a pressing rod of the air cylinder (123) corresponding to the guide rail (51).
3. The concrete test block compression testing machine of claim 1, wherein: the push plate (124) is arranged along multiple sections of the length direction of the push plate, the sections are sleeved with each other, a tension spring (1243) is arranged in the push plate (124), and the tension spring (1243) is fixedly connected with two ends of the push plate (124) along the length direction of the push plate.
4. The concrete test block compression testing machine of claim 1, wherein: the mounting plate (121) is fixedly arranged at one end, close to the free end (1241) of the push plate (124), of the side wall of the lower pressing block (12).
5. The concrete test block compression testing machine of claim 1, wherein: and a tension spring (6) is arranged between the end part of the pressure rod of each air cylinder (123) and the free end (1241) corresponding to the push plate (124).
6. The concrete test block compression testing machine of claim 1, wherein: the lifting device (21) comprises a screw rod (211) in threaded connection with the center of the fixing plate (2), a servo motor (212) fixedly arranged on the fixing plate (2), a driving bevel gear (213) fixedly arranged on a driving shaft of the servo motor (212) and a driven bevel gear (214) in threaded connection with the screw rod (211), wherein the servo motor (212) is fixedly arranged on one side, away from the base (1), of the fixing plate (2), and the driven bevel gear (214) is located on one side, away from the base (1), of the fixing plate (2).
7. The concrete test block compression testing machine of claim 6, wherein: the screw rod (211) is rotatably connected with the upper pressing block (22), four corners of the upper pressing block (22) correspond to the arc-shaped notches (221) in the diameter of the upright column (3), and the four upright columns (3) are respectively located at the four arc-shaped notches (221) of the upper pressing block (22).
8. The concrete test block compression testing machine of claim 1, wherein: the pressure device (11) comprises a hydraulic cylinder arranged on one side of the base (1) close to the fixed plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921587965.XU CN210923290U (en) | 2019-09-23 | 2019-09-23 | Concrete test block compression testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921587965.XU CN210923290U (en) | 2019-09-23 | 2019-09-23 | Concrete test block compression testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210923290U true CN210923290U (en) | 2020-07-03 |
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ID=71343791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921587965.XU Expired - Fee Related CN210923290U (en) | 2019-09-23 | 2019-09-23 | Concrete test block compression testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210923290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116124593A (en) * | 2023-04-14 | 2023-05-16 | 常州市慧宇建筑工程质量检测有限公司 | Universal experiment press with transmission device |
-
2019
- 2019-09-23 CN CN201921587965.XU patent/CN210923290U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116124593A (en) * | 2023-04-14 | 2023-05-16 | 常州市慧宇建筑工程质量检测有限公司 | Universal experiment press with transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200703 |