CN214150178U - Test piece fixing device that pendulum tester was used - Google Patents
Test piece fixing device that pendulum tester was used Download PDFInfo
- Publication number
- CN214150178U CN214150178U CN202120145851.0U CN202120145851U CN214150178U CN 214150178 U CN214150178 U CN 214150178U CN 202120145851 U CN202120145851 U CN 202120145851U CN 214150178 U CN214150178 U CN 214150178U
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- lifting frame
- clamping
- test piece
- frame
- fixing device
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Abstract
The utility model discloses a test piece fixing device that pendulum bob test machine was used, including mount, lower plate, slewing bearing mechanism, crane, centre gripping subassembly and electrical unit, the mount setting is in slewing bearing mechanism top, and its lower extreme and lower plate structure as an organic whole. The fixed frame is fixedly connected with the top of the slewing bearing mechanism through the lower bottom plate, and the slewing bearing mechanism drives the fixed frame to rotate horizontally. The lifting frame is arranged on the left side of the fixing frame, the right end of the lifting frame is connected with the fixing frame in a vertical sliding mode, a linear driving mechanism is arranged on the lifting frame, and the lifting frame is driven by the linear driving mechanism to ascend or descend. The clamping assemblies are arranged oppositely in the forward direction, one clamping assembly is arranged on the lower bottom plate, and the other clamping assembly is arranged at the bottom of the lifting frame. The utility model discloses rational in infrastructure, satisfy the fixed requirement of test piece of multiple shape, test piece working face angle modulation is convenient, quick, and degree of automation is high, and is easy and simple to handle, nimble, labour saving and time saving, and the dismouting is efficient, and the security is better.
Description
Technical Field
The utility model relates to a building test equipment technical field, concretely relates to test piece fixing device that pendulum bob testing machine was used.
Background
As a commonly used engineering structure, a reinforced concrete structure may be subjected to various impact loads during use, such as collision, explosion, water impact, terrorist attack, and the like. The building structure or member scale test device is convenient for civil engineering professionals to carry out scale test on building structures or members based on artificial and natural dynamic load factors, and provides test equipment with combined functions for teams with different test requirements. At present, no relevant test equipment exists at home and abroad.
At present, a large number of domestic and foreign experts and scholars aim at the dynamic response research of regular structural members such as beams, columns and plates under the action of impact load, and due to the limitation of the existing test equipment, the existing test instrument is mainly a gravity type drop hammer, and test objects are mostly test pieces with regular shapes and structures such as beams, columns and plates which can be vertically arranged, and a small number of special-shaped test pieces. Before the experiment, need be fixed in the test piece on the workstation, current workstation majority only is applicable to the test piece of shape rule, relies on the artifical fixed test piece of instruments such as clamp plate, bolt that use, and fixed mode is complicated, the operation of being not convenient for, and the working face angle modulation difficulty of test piece, the installation wastes time and energy with the dismantlement, and the operation degree of difficulty is big, and is inefficient, and the dismouting process has great potential safety hazard. Thus, further improvements and enhancements are needed in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to the not enough of above-mentioned prior art, the utility model aims to provide a test piece fixing device that pendulum bob testing machine was used solves the current fixed mode operation of test piece complicacy, and the difficulty is adjusted to its working face angle, and the dismouting is wasted time and energy, and the operation degree of difficulty is big, inefficiency, the poor problem of security.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a test piece fixing device that pendulum bob test machine was used, includes mount, lower plate, slewing bearing mechanism, crane, centre gripping subassembly and electrical unit, and the mount setting is in slewing bearing mechanism top, and its lower extreme and lower plate structure as an organic whole.
The fixed frame is fixedly connected with the top of the slewing bearing mechanism through the lower bottom plate, and the slewing bearing mechanism drives the fixed frame to rotate horizontally.
The lifting frame is arranged on the left side of the fixing frame, the right end of the lifting frame is connected with the fixing frame in a vertical sliding mode, a linear driving mechanism is arranged on the lifting frame, and the lifting frame is driven by the linear driving mechanism to ascend or descend.
The clamping assemblies are arranged in a forward opposite mode, one of the two clamping assemblies is arranged on the lower bottom plate, and the other clamping assembly is arranged at the bottom of the lifting frame.
Furthermore, two square guide columns are vertically arranged on the inner side of the fixing frame in parallel, two ends of each square guide column are connected with the fixing frame into a whole, and each square guide column penetrates through the right end of the lifting frame and is in vertical sliding fit with the lifting frame.
Further, linear driving mechanism includes first lead screw and a servo motor, and first lead screw sets up between two square guide posts, arranges with square guide post parallel arrangement relatively, and first lead screw passes the crane rather than screw-thread fit.
First servo motor installs at the top of mount, and its output passes through the speed reducer and links to each other with the upper end of first lead screw is fixed, and first servo motor's signal end and electrical control unit communication are connected.
Furthermore, the clamping assembly comprises two straight guide columns, two-way lead screws and two clamping blocks, the two straight guide columns are arranged in parallel relatively, and the two-way lead screws are horizontally arranged between the two straight guide columns.
One end of the bidirectional screw rod is provided with a second servo motor, and a signal end of the second servo motor is in communication connection with the electric control unit.
The two clamping blocks are oppositely arranged along the axial direction of the straight guide post, and the bidirectional screw drives the two clamping blocks to synchronously and oppositely move.
Furthermore, the straight guide pillar and the bidirectional screw rod both penetrate through the two clamping blocks, and the two clamping blocks are respectively in rotating fit with the two sections of reverse threads of the bidirectional screw rod.
The clamping block comprises a clamping block body and clamping jaws, the clamping block body is of a long strip structure with a square cross section, and the clamping jaws are located on one side, deviating from each other, of the two clamping block bodies and are of a structure with the corresponding clamping block bodies.
Furthermore, the bottoms of the two clamping blocks of the clamping assembly positioned below are in sliding fit with the first guide rail arranged on the lower bottom plate, and two ends of the straight guide post of the clamping assembly positioned below are fixedly connected with the lower bottom plate.
The tops of the two clamping blocks of the clamping assembly positioned below are in sliding fit with a second guide rail arranged on the lifting frame, and the two ends of the straight guide pillar of the clamping assembly positioned above are fixedly connected with the lifting frame.
Furthermore, the slewing bearing mechanism comprises a base, a slewing bearing and a lower platform which are sequentially arranged from bottom to top, the bottom of the lower platform is rotatably connected with the base through the slewing bearing, and the lower bottom plate is fixedly connected with the lower platform.
Furthermore, the slewing bearing comprises an inner ring, an outer ring, a worm and a hydraulic motor, wherein the inner ring is fixedly arranged on the base, and the outer ring is fixedly connected with the bottom of the lower platform.
The edge of outer lane is equipped with the teeth of a cogwheel with worm matched with, hydraulic motor passes through motor support and installs in the base outside, and the coaxial fixed connection of worm one end and hydraulic motor's output, the worm passes through gear drive lower platform and rotates, and hydraulic motor's signal end and electric control unit communication are connected.
By adopting the technical scheme, the utility model discloses a beneficial technological effect is: the utility model discloses rational in infrastructure, satisfy the fixed requirement of test piece of multiple shape, the angular adjustment of test piece working face is convenient, quick, and degree of automation is high, and is easy and simple to handle, nimble, labour saving and time saving, and the test piece dismouting is efficient, and the security is better.
Drawings
Fig. 1 is the utility model discloses a test piece fixing device's that pendulum testing machine was used structural principle sketch map.
Fig. 2 is a partially enlarged view of a portion a of the present invention in fig. 1.
Fig. 3 is a schematic view of the top view structure of the test piece fixing device for the pendulum testing machine of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
with reference to fig. 1 to 3, a test piece fixing device for a pendulum bob testing machine comprises a fixing frame 1, a lower base plate 2, a slewing bearing mechanism 3, a lifting frame 4, a clamping assembly 5 and an electric control unit, wherein the fixing frame 1 is arranged above the slewing bearing mechanism 3, and the lower end of the fixing frame and the lower base plate 2 are of an integral structure. The fixing frame 1 is fixedly connected with the top of the slewing bearing mechanism 3 through the lower bottom plate 2 through bolts, and the slewing bearing mechanism 3 drives the fixing frame 1 to rotate horizontally.
The electric control unit comprises an electric control cabinet and a PLC (programmable logic controller), the PLC adopts the existing PLC in the prior art, receives an electric signal sent by a signal acquisition component, sends an instruction for an electric execution component to control the work of the electric execution component, and the electric control cabinet is connected with 380V mains supply to supply power for each electric component of the test piece fixing device.
The slewing bearing mechanism 3 comprises a base 31, a slewing bearing and a lower platform 32 which are sequentially arranged from bottom to top, the bottom of the lower platform 32 is rotatably connected with the base 31 through the slewing bearing, and the lower bottom plate 2 is fixedly connected with the lower platform 32. The slewing bearing comprises an inner ring 33, an outer ring 34, a worm 35 and a hydraulic motor 36, wherein the inner ring 33 is fixedly arranged on the base 31, and the outer ring 34 is fixedly connected with the bottom of the lower platform 32.
The edge of outer lane 34 is equipped with the teeth of a cogwheel 37 with worm 35 matched with, hydraulic motor 36 installs in the outside of base 31 through motor support 38, and the coaxial fixed connection of hydraulic motor 36's output is gone up to worm 35 one end, and worm 35 passes through gear 37 drive lower platform 32 and rotates, and hydraulic motor 36's signal end and electronic control unit communication are connected. The test piece fixing device for the pendulum testing machine further comprises a hydraulic station, and the hydraulic station supplies oil and returns oil for the hydraulic motor 36.
The lifting frame 4 is arranged on the left side of the fixing frame 1, the right end of the lifting frame is connected with the fixing frame 1 in a vertical sliding mode, a linear driving mechanism is arranged on the lifting frame 4, and the lifting frame 4 is driven to ascend or descend by the linear driving mechanism. Specifically, two square guide pillars 11 are vertically arranged in parallel on the inner side of the fixing frame 1, two ends of each square guide pillar 11 are connected with the fixing frame 1 into a whole, and each square guide pillar 11 penetrates through the right end of the lifting frame 4 and is in vertical sliding fit with the lifting frame. The linear driving mechanism comprises a first lead screw 12 and a first servo motor 13, the first lead screw 12 is arranged between the two square guide columns 11 and is arranged in parallel relative to the square guide columns 11, and the first lead screw 12 penetrates through the lifting frame 4 to be in threaded fit with the lifting frame.
The clamping assembly 5 comprises two straight guide posts 51, a bidirectional lead screw 62 and two clamping blocks 63, the two straight guide posts 51 are arranged in parallel, and the bidirectional lead screw 62 is horizontally arranged between the two straight guide posts 51. The right end of the bidirectional screw 62 is provided with a second servo motor 64, and the signal end of the second servo motor 64 is in communication connection with the electronic control unit. The two clamping blocks 63 are oppositely arranged along the axial direction of the straight guide post 51, and the bidirectional screw 62 drives the two clamping blocks 63 to synchronously move oppositely or oppositely.
The bottoms of the two clamping blocks 63 of the lower clamping assembly 5 are in sliding fit with a first guide rail 71 fixedly mounted on the upper surface of the lower base plate 2, and two ends of the straight guide post 51 of the lower clamping assembly 5 are fixedly connected with the lower base plate 2. The tops of the two clamping blocks 63 of the lower clamping assembly 5 are in sliding fit with a second guide rail 72 fixedly installed at the bottom of the lifting frame 4, and the two ends of the straight guide post 51 of the upper clamping assembly 5 are fixedly connected with the lifting frame 4.
Specifically, the first guide rail 71 and the second guide rail 72 are both dovetail-shaped guide rails, and a dovetail groove matched with the dovetail-shaped guide rails is formed in the clamping block 63. The length directions of the first guide rail 71 and the second guide rail 72 are consistent with the axial direction of the straight guide post 51, and the first guide rail 71 and the second guide rail 72 have guiding and restraining effects on the movement of the clamping block 63, so that the clamping block 63 is ensured to move linearly along the dovetail-shaped guide rail.
The straight guide post 51 and the bidirectional screw 62 both penetrate through the two clamping blocks 63, and the two clamping blocks 63 are respectively in rotating fit with two sections of reverse threads of the bidirectional screw 62. The clamping block 63 comprises a clamping block body 631 and clamping jaws 632, wherein the clamping block body 631 is of a long strip structure with a square cross section, and the clamping jaws 632 are located on one side of the two clamping block bodies 631 deviating from each other and are of an integrated structure with the corresponding clamping block bodies 631.
The output end of the second servo motor drives the bidirectional screw 62 to rotate, the two clamping blocks 63 are both internally provided with nut seats, the nut seats in the two clamping blocks 63 are respectively in rotating fit with two sections of reverse threads of the bidirectional screw 16, and the bidirectional screw 62 drives the two clamping blocks 63 to synchronously approach or keep away along the straight guide post 51, so that the test piece is clamped or loosened.
The utility model discloses an approximate working process as follows: during operation, the clamping assemblies 5 above are adjusted to a certain height according to the height of a test piece, the distance between the two clamping assemblies 5 is ensured to be capable of being placed into the test piece, and the distance between the two clamping blocks 63 arranged on the base 31 is adjusted through the bidirectional screw rod 62 of the clamping assemblies 5. The crane 4 and the two clamping blocks 63 on the base 31 are kept in an open state, the test piece is hoisted and placed on the two clamping blocks 63 on the base 31, the clamping block bodies 631 of the two clamping blocks 63 of the base 31 support the test piece, and the clamping jaws 632 are located on the outer side of the test piece.
The two clamping blocks 63 located on the lifting frame 4 are kept in an open state, the first lead screw 12 drives the lifting frame 4 to fall to the top of the test piece, the two-way lead screw 62 of the clamping assembly 5 of the lifting frame 4 and the base 31 drives the two corresponding clamping blocks 63 to move relatively, and the clamping jaws 632 of the two clamping blocks 63 clamp the bottom and the top of the test piece respectively, so that the positioning and the fixing of the test piece are realized. Finally, the hydraulic motor 36 drives the lower base plate 2 to rotate through the slewing bearing, and the angle of the working surface of the test piece is adjusted according to the test requirement, wherein the working surface of the test piece refers to the plane or the curved surface of the peripheral area of the position of the test piece impacted by the pendulum bob.
The parts not mentioned in the utility model can be realized by adopting or using the prior art for reference.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (8)
1. A test piece fixing device for a pendulum bob testing machine is characterized by comprising a fixing frame, a lower base plate, a rotary supporting mechanism, a lifting frame, a clamping assembly and an electric control unit, wherein the fixing frame is arranged above the rotary supporting mechanism, and the lower end of the fixing frame and the lower base plate are of an integrated structure;
the fixed frame is fixedly connected with the top of the slewing bearing mechanism through the lower bottom plate, and the slewing bearing mechanism drives the fixed frame to horizontally rotate;
the lifting frame is arranged on the left side of the fixing frame, the right end of the lifting frame is vertically and slidably connected with the fixing frame, a linear driving mechanism is arranged on the lifting frame, and the lifting frame is driven by the linear driving mechanism to ascend or descend;
the clamping assemblies are arranged in a forward opposite mode, one of the two clamping assemblies is arranged on the lower bottom plate, and the other clamping assembly is arranged at the bottom of the lifting frame.
2. The test piece fixing device for the pendulum bob testing machine according to claim 1, wherein two square guide pillars are vertically arranged in parallel inside the fixing frame, both ends of each square guide pillar are integrally connected with the fixing frame, and each square guide pillar passes through a right end of the lifting frame and is in vertical sliding fit with the lifting frame.
3. The test piece fixing device for the pendulum bob testing machine as claimed in claim 2, wherein the linear driving mechanism comprises a first lead screw and a first servo motor, the first lead screw is arranged between the two square guide posts and is arranged in parallel with the square guide posts, and the first lead screw passes through the lifting frame to be in threaded fit with the lifting frame;
first servo motor installs at the top of mount, and its output passes through the speed reducer and links to each other with the upper end of first lead screw is fixed, and first servo motor's signal end and electrical control unit communication are connected.
4. The test piece fixing device for the pendulum testing machine according to claim 1, wherein the clamping assembly comprises two straight guide posts, two-way lead screws and two clamping blocks, the two straight guide posts are arranged in parallel, and the two-way lead screws are horizontally arranged between the two straight guide posts;
one end of the bidirectional screw rod is provided with a second servo motor, and the signal end of the second servo motor is in communication connection with the electric control unit;
the two clamping blocks are oppositely arranged along the axial direction of the straight guide post, and the bidirectional screw drives the two clamping blocks to synchronously and oppositely move.
5. The test piece fixing device for the pendulum bob testing machine according to claim 4, wherein the straight guide post and the bidirectional screw rod both pass through two clamping blocks, and the two clamping blocks are respectively in rotating fit with two sections of reverse threads of the bidirectional screw rod;
the clamping block comprises a clamping block body and clamping jaws, the clamping block body is of a long strip structure with a square cross section, and the clamping jaws are located on one side, deviating from each other, of the two clamping block bodies and are of a structure with the corresponding clamping block bodies.
6. A test piece fixing device for a pendulum bob testing machine according to claim 4, wherein the bottoms of the two clamping blocks of the lower clamping assembly are in sliding fit with a first guide rail arranged on the lower base plate, and two ends of a straight guide post of the lower clamping assembly are fixedly connected with the lower base plate;
the tops of the two clamping blocks of the clamping assembly positioned below are in sliding fit with a second guide rail arranged on the lifting frame, and the two ends of the straight guide pillar of the clamping assembly positioned above are fixedly connected with the lifting frame.
7. The device for fixing the test piece for the pendulum bob testing machine according to claim 1, wherein the pivoting support mechanism comprises a base, a pivoting support and a lower platform which are sequentially arranged from bottom to top, the bottom of the lower platform is rotatably connected with the base through the pivoting support, and the lower bottom plate is fixedly connected with the lower platform.
8. The test piece fixing device for the pendulum testing machine, as claimed in claim 1, wherein the slewing bearing comprises an inner ring, an outer ring, a worm and a hydraulic motor, the inner ring is fixedly mounted on the base, and the outer ring is fixedly connected with the bottom of the lower platform;
the edge of outer lane is equipped with the teeth of a cogwheel with worm matched with, hydraulic motor passes through motor support and installs in the base outside, and the coaxial fixed connection of worm one end and hydraulic motor's output, the worm passes through gear drive lower platform and rotates, and hydraulic motor's signal end and electric control unit communication are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120145851.0U CN214150178U (en) | 2021-01-19 | 2021-01-19 | Test piece fixing device that pendulum tester was used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120145851.0U CN214150178U (en) | 2021-01-19 | 2021-01-19 | Test piece fixing device that pendulum tester was used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214150178U true CN214150178U (en) | 2021-09-07 |
Family
ID=77548397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120145851.0U Expired - Fee Related CN214150178U (en) | 2021-01-19 | 2021-01-19 | Test piece fixing device that pendulum tester was used |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214150178U (en) |
-
2021
- 2021-01-19 CN CN202120145851.0U patent/CN214150178U/en not_active Expired - Fee Related
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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: 20210907 Termination date: 20220119 |