阅读说明：本技术 土木工程结构抗震试验装置 (Civil engineering structure shock resistance test device ) 是由 肖勇杰 于 2021-09-18 设计创作，主要内容包括：本发明涉及土木工程试验设备领域,尤其涉及土木工程结构抗震试验装置,包括机架、移动架、第一液压缸、旋转架、伺服电机、顶杆、关节轴承、试验台、第二液压缸和第三液压缸；所述机架沿水平方向设有第一滑轨,所述移动架与所述第一滑轨滑动配合,所述第一液压缸设置在所述机架上,所述第一液压缸与所述移动架连接,所述旋转架转动设置在所述移动架上,所述旋转架转动的轴线垂直于水平面,所述伺服电机设置在所述移动架上,所述伺服电机与所述旋转架连接。本发明提供的土木工程结构抗震试验装置消除了弹性连接件的弹性势能对试验结构产生的不利影响,提高了试验精度,能够模拟多种情形下的震动试验,适用范围广。(The invention relates to the field of civil engineering test equipment, in particular to a civil engineering structure anti-seismic test device which comprises a rack, a moving frame, a first hydraulic cylinder, a rotating frame, a servo motor, an ejector rod, a joint bearing, a test bed, a second hydraulic cylinder and a third hydraulic cylinder; the frame is equipped with first slide rail along the horizontal direction, remove the frame with first slide rail sliding fit, first pneumatic cylinder sets up in the frame, first pneumatic cylinder with remove the frame and connect, the swivel mount rotates and sets up remove on the frame, swivel mount pivoted axis perpendicular to horizontal plane, servo motor sets up remove on the frame, servo motor with the swivel mount is connected. The civil engineering structure anti-seismic testing device provided by the invention eliminates the adverse effect of the elastic potential energy of the elastic connecting piece on the testing structure, improves the testing precision, can simulate the seismic tests under various conditions, and has a wide application range.)

1. The civil engineering structure anti-seismic testing device is characterized by comprising a rack, a moving frame, a first hydraulic cylinder, a rotating frame, a servo motor, a mandril, a joint bearing, a test bed, a second hydraulic cylinder and a third hydraulic cylinder;

the rack is provided with a first slide rail along the horizontal direction, the moving frame is in sliding fit with the first slide rail, the first hydraulic cylinder is arranged on the rack, the first hydraulic cylinder is connected with the moving frame, the rotating frame is rotationally arranged on the moving frame, the rotating axis of the rotating frame is perpendicular to the horizontal plane, the servo motor is arranged on the moving frame, the servo motor is connected with the rotating frame, more than three ejector rods are vertically arranged on the rotating frame, more than three groups of second hydraulic cylinders are vertically arranged on the rotating frame, the third hydraulic cylinder is vertically arranged on the rotating frame along the rotating axis of the rotating frame, more than three ejector rods are uniformly arranged in the circumferential direction around the rotating axis of the rotating frame, the top of the ejector rods is connected with the bottom of the test bed through the joint bearing, more than three groups of second hydraulic cylinders are uniformly arranged in the circumferential direction around the rotating axis of the rotating frame, the bottom of each second hydraulic cylinder is abutted to the top of the test bed, and the top of each third hydraulic cylinder is abutted to the bottom of the test bed.

2. A civil engineering structure earthquake-proof test device according to claim 1, characterized in that it also comprises a support member, the third hydraulic cylinder is connected with one end of the support member, the other end of the support member is provided with a first spherical support part, and the bottom of the test bed is provided with a second spherical support part matched with the first spherical support part.

3. A civil engineering structure earthquake-proof test device according to claim 1, characterized in that the earthquake-proof test device further comprises a pressing piece, wherein the second hydraulic cylinder is connected with one end of the pressing piece, and the other end of the pressing piece is provided with a third spherical supporting part which is abutted against the top of the test bed.

4. The civil engineering structure earthquake-proof test device of claim 1, wherein the top of the test bed is provided with a first clamping groove, the bottom of the second hydraulic cylinder is in clamping fit with the first clamping groove, the bottom of the test bed is provided with a second clamping groove, and the top of the third hydraulic cylinder is in clamping fit with the second clamping groove.

5. A civil engineering structure earthquake-proof test device according to claim 1, wherein the number of the push rods and the second hydraulic cylinders is odd.

6. A civil engineering structure earthquake-proof test device according to claim 1, wherein the jack and the second hydraulic cylinder are coaxially provided.

7. An earthquake-proof test device for a civil engineering structure according to claim 1, wherein the cross-sectional shape of the first slide rail is a T-shape, the number of the first hydraulic cylinders is two, and the two first hydraulic cylinders are respectively arranged on two opposite sides of the movable frame.

8. Civil engineering structure antidetonation test device of claim 1, characterized in that, the servo motor is connected with the swivel mount through the gear train, and the removal frame is equipped with the ring channel, and the swivel mount and the ring channel sliding fit.

9. The civil engineering structure earthquake-proof test device of claim 1, further comprising a separation cover and a fan, wherein the separation cover is arranged on the frame, the separation cover covers the movable frame, the first hydraulic cylinder, the rotating frame, the servo motor, the ejector rod, the joint bearing, the test bed, the second hydraulic cylinder and the third hydraulic cylinder, and the fan is arranged on the side wall of the separation cover.

10. Civil engineering structure antidetonation test device of claim 1, characterized in that, the top of test bench is equipped with the test piece mount table.

Technical Field

The invention relates to the field of civil engineering test equipment, in particular to a civil engineering structure anti-seismic test device.

Background

The civil engineering structure anti-seismic test device utilizes a driving element to drive a test bed to periodically shake, so that the anti-seismic effect of the structure to be tested is measured. The existing anti-seismic test device adopts the elastic connecting piece to support or limit the test bed in order to realize flexible shaking of the test bed, the elastic connecting piece also has a certain protection effect, but the elastic potential energy of the elastic connecting piece can interfere with the movement of the test bed, so that finally measured data have errors, and the influence of vibration on the structure to be measured can not be truly simulated.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the civil engineering structure anti-seismic test device is high in measurement accuracy.

In order to solve the technical problems, the invention adopts the technical scheme that: the civil engineering structure anti-seismic testing device comprises a rack, a moving frame, a first hydraulic cylinder, a rotating frame, a servo motor, a mandril, a joint bearing, a test bed, a second hydraulic cylinder and a third hydraulic cylinder;

the rack is provided with a first slide rail along the horizontal direction, the moving frame is in sliding fit with the first slide rail, the first hydraulic cylinder is arranged on the rack, the first hydraulic cylinder is connected with the moving frame, the rotating frame is rotationally arranged on the moving frame, the rotating axis of the rotating frame is perpendicular to the horizontal plane, the servo motor is arranged on the moving frame, the servo motor is connected with the rotating frame, more than three ejector rods are vertically arranged on the rotating frame, more than three groups of second hydraulic cylinders are vertically arranged on the rotating frame, the third hydraulic cylinder is vertically arranged on the rotating frame along the rotating axis of the rotating frame, more than three ejector rods are uniformly arranged in the circumferential direction around the rotating axis of the rotating frame, the top of the ejector rods is connected with the bottom of the test bed through the joint bearing, more than three groups of second hydraulic cylinders are uniformly arranged in the circumferential direction around the rotating axis of the rotating frame, the bottom of each second hydraulic cylinder is abutted to the top of the test bed, and the top of each third hydraulic cylinder is abutted to the bottom of the test bed.

Further, the test bed further comprises a supporting piece, the third hydraulic cylinder is connected with one end of the supporting piece, a first spherical supporting portion is arranged at the other end of the supporting piece, and a second spherical supporting portion matched with the first spherical supporting portion is arranged at the bottom of the test bed.

The second hydraulic cylinder is connected with one end of the pressing piece, a third spherical supporting part is arranged at the other end of the pressing piece, and the third spherical supporting part abuts against the top of the test bed.

Further, the top of test bench is equipped with first draw-in groove, the bottom of second pneumatic cylinder with the cooperation of first draw-in groove joint, the bottom of test bench is equipped with the second draw-in groove, the top of third pneumatic cylinder with the cooperation of second draw-in groove joint.

Furthermore, the number of the ejector rods and the number of the second hydraulic cylinders are both odd numbers.

Further, the ejector rod and the second hydraulic cylinder are coaxially arranged.

Furthermore, the cross section of the first slide rail is in a T shape, the number of the first hydraulic cylinders is two, and the two first hydraulic cylinders are respectively arranged on two opposite sides of the moving frame.

Further, the servo motor is connected with the rotating frame through a gear set, the moving frame is provided with an annular groove, and the rotating frame is in sliding fit with the annular groove.

Further, still include and separate cover and fan, separate the cover setting in the frame, separate the cover will remove frame, first pneumatic cylinder, swivel mount, servo motor, ejector pin, joint bearing, test bench, second pneumatic cylinder and third pneumatic cylinder cover locate, the fan sets up separate the lateral wall of cover.

Further, a test piece mounting table is arranged at the top of the test bed.

The invention has the beneficial effects that: the utility model provides a civil engineering structure antidetonation test device, fix the top at the test bench with the piece that awaits measuring before the use, utilize during the use to lean on the test bench from the upper and lower both sides of test bench respectively with a set of third pneumatic cylinder more than three groups second pneumatic cylinder, guarantee the horizontality of test bench, utilize servo motor control swivel mount to rotate on removing the frame after that, thereby adjust the orientation of the piece that awaits measuring on the test bench, then utilize first pneumatic cylinder drive to remove the whole first slide rail horizontal reciprocating motion of following of frame and swivel mount, thereby simulate out the horizontal shock condition of earthquake, test out the horizontal shock resistance of the structure that awaits measuring. When the longitudinal vibration condition of an earthquake needs to be simulated, the orientation of a to-be-tested piece on the test bed is adjusted, then the first hydraulic cylinder is used for controlling the movable frame to keep the horizontal position unchanged, the test bed is driven to vertically lift through more than three groups of second hydraulic cylinders and one group of third hydraulic cylinders, the joint bearings which can flexibly rotate and properly lift in a pressure fit mode are controlled, and the influence of different longitudinal wave vibrations on a to-be-tested structure can be tested. When the influence of transverse waves and longitudinal waves on the test piece is required to be tested simultaneously, when the situation of longitudinal vibration is simulated, a first hydraulic cylinder is added to simulate the transverse vibration, and meanwhile, the servo motor is used for controlling the rotation of the piece to be tested so as to simulate the situation of the piece to be tested when the piece to be tested is vibrated in different directions. The civil engineering structure anti-seismic testing device provided by the invention eliminates the adverse effect of the elastic potential energy of the elastic connecting piece on the testing structure, improves the testing precision, can simulate the seismic tests under various conditions, and has a wide application range.

Drawings

FIG. 1 is a schematic structural view of a civil engineering structure earthquake resistance test apparatus according to an embodiment of the invention;

FIG. 2 is a partial schematic view of a civil engineering structure earthquake resistance test apparatus according to an embodiment of the invention;

FIG. 3 is a schematic structural diagram of a pressing member according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a support member according to an embodiment of the present invention;

description of reference numerals:

1. a frame; 11. a first slide rail; 2. a movable frame; 3. a first hydraulic cylinder; 4. a rotating frame; 5. a servo motor; 6. a top rod; 7. a knuckle bearing; 8. a test bed; 9. a second hydraulic cylinder; 91. a pressing member; 10. a third hydraulic cylinder; 101. and a support member.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 to 4, the civil engineering structure earthquake resistance test device comprises a frame, a moving frame, a first hydraulic cylinder, a rotating frame, a servo motor, a top rod, a joint bearing, a test bed, a second hydraulic cylinder and a third hydraulic cylinder;

the rack is provided with a first slide rail along the horizontal direction, the moving frame is in sliding fit with the first slide rail, the first hydraulic cylinder is arranged on the rack, the first hydraulic cylinder is connected with the moving frame, the rotating frame is rotationally arranged on the moving frame, the rotating axis of the rotating frame is perpendicular to the horizontal plane, the servo motor is arranged on the moving frame, the servo motor is connected with the rotating frame, more than three ejector rods are vertically arranged on the rotating frame, more than three groups of second hydraulic cylinders are vertically arranged on the rotating frame, the third hydraulic cylinder is vertically arranged on the rotating frame along the rotating axis of the rotating frame, more than three ejector rods are uniformly arranged in the circumferential direction around the rotating axis of the rotating frame, the top of the ejector rods is connected with the bottom of the test bed through the joint bearing, more than three groups of second hydraulic cylinders are uniformly arranged in the circumferential direction around the rotating axis of the rotating frame, the bottom of each second hydraulic cylinder is abutted to the top of the test bed, and the top of each third hydraulic cylinder is abutted to the bottom of the test bed.

From the above description, the beneficial effects of the present invention are: the utility model provides a civil engineering structure antidetonation test device, fix the top at the test bench with the piece that awaits measuring before the use, utilize during the use to lean on the test bench from the upper and lower both sides of test bench respectively with a set of third pneumatic cylinder more than three groups second pneumatic cylinder, guarantee the horizontality of test bench, utilize servo motor control swivel mount to rotate on removing the frame after that, thereby adjust the orientation of the piece that awaits measuring on the test bench, then utilize first pneumatic cylinder drive to remove the whole first slide rail horizontal reciprocating motion of following of frame and swivel mount, thereby simulate out the horizontal shock condition of earthquake, test out the horizontal shock resistance of the structure that awaits measuring. When the longitudinal vibration condition of an earthquake needs to be simulated, the orientation of a to-be-tested piece on the test bed is adjusted, then the first hydraulic cylinder is used for controlling the movable frame to keep the horizontal position unchanged, the test bed is driven to vertically lift through more than three groups of second hydraulic cylinders and one group of third hydraulic cylinders, the joint bearings which can flexibly rotate and properly lift in a pressure fit mode are controlled, and the influence of different longitudinal wave vibrations on a to-be-tested structure can be tested. When the influence of transverse waves and longitudinal waves on the test piece is required to be tested simultaneously, when the situation of longitudinal vibration is simulated, a first hydraulic cylinder is added to simulate the transverse vibration, and meanwhile, the servo motor is used for controlling the rotation of the piece to be tested so as to simulate the situation of the piece to be tested when the piece to be tested is vibrated in different directions. The civil engineering structure anti-seismic testing device provided by the invention eliminates the adverse effect of the elastic potential energy of the elastic connecting piece on the testing structure, improves the testing precision, can simulate the seismic tests under various conditions, and has a wide application range.

In an optional embodiment, the test bench further comprises a support member, the third hydraulic cylinder is connected with one end of the support member, the other end of the support member is provided with a first spherical support portion, and the bottom of the test bench is provided with a second spherical support portion matched with the first spherical support portion.

From the above description, the supporting member can reduce the friction between the test bed and the supporting member when the test bed tilts by the cooperation of the first spherical supporting portion and the second spherical supporting portion of the test bed.

In an optional embodiment, the test bench further comprises a pressing piece, the second hydraulic cylinder is connected with one end of the pressing piece, a third spherical supporting portion is arranged at the other end of the pressing piece, and the third spherical supporting portion abuts against the top of the test bench.

According to the above description, the pressing piece presses the top of the test bed through the third spherical supporting part, so that the friction force between the test bed and the supporting piece during tilting is reduced, and the simulation vibration precision is improved.

In an optional embodiment, a first clamping groove is formed in the top of the test bed, the bottom of the second hydraulic cylinder is matched with the first clamping groove in a clamping mode, a second clamping groove is formed in the bottom of the test bed, and the top of the third hydraulic cylinder is matched with the second clamping groove in a clamping mode.

According to the above description, the first clamping groove and the second clamping groove are respectively used for clamping the second hydraulic cylinder and the third hydraulic cylinder, so that the second hydraulic cylinder and the third hydraulic cylinder are prevented from being separated from the test bed.

In an optional embodiment, the number of the push rods and the number of the second hydraulic cylinders are both odd.

As can be seen from the above description, the ejector rods and the second hydraulic cylinders are odd numbers, so that the simulation of longitudinal vibration is more real, and the test effect is improved.

In an alternative embodiment, the ram and the second hydraulic cylinder are coaxially arranged.

As can be known from the description, the ejector rod and the second hydraulic cylinder are coaxially arranged, so that the simulation of longitudinal vibration is more real, and the test effect is improved.

In an optional embodiment, the cross-sectional shape of the first slide rail is a T-shape, the number of the first hydraulic cylinders is two, and the two first hydraulic cylinders are respectively arranged on two opposite sides of the moving frame.

It can be known from the above description that the first slide rail adopts a T-shaped cross section, and the two sets of first hydraulic cylinders are symmetrically arranged to improve the stability of the movable frame.

In an alternative embodiment, the servo motor is connected with the rotating frame through a gear set, the moving frame is provided with an annular groove, and the rotating frame is in sliding fit with the annular groove.

As can be seen from the above description, the gear set is used for realizing the transmission connection between the servo motor and the rotating frame, and the annular groove plays a role in improving the rotating stability of the rotating frame.

In an optional embodiment, the test bed further comprises a separation cover and a fan, the separation cover is arranged on the rack, the separation cover covers the moving frame, the first hydraulic cylinder, the rotating frame, the servo motor, the ejector rod, the knuckle bearing, the test bed, the second hydraulic cylinder and the third hydraulic cylinder, and the fan is arranged on the side wall of the separation cover.

According to the above description, the separating cover plays a role in reducing the interference of the environment to the test, and the fan is used for simulating the influence of different wind power on the piece to be tested.

In an alternative embodiment, a test piece mounting table is arranged on the top of the test bed.

As can be seen from the above description, the test piece mounting table fixes the to-be-tested piece in a locking connection mode and the like, so that the test precision is ensured.

Referring to fig. 1 to 4, a first embodiment of the present invention is: the civil engineering structure anti-seismic testing device comprises a rack 1, a moving frame 2, a first hydraulic cylinder 3, a rotating frame 4, a servo motor 5, a mandril 6, a joint bearing 7, a test bed 8, a second hydraulic cylinder 9 and a third hydraulic cylinder 10;

the frame 1 is provided with a first slide rail 11 along the horizontal direction, the movable frame 2 is in sliding fit with the first slide rail 11, the first hydraulic cylinder 3 is arranged on the frame 1, the first hydraulic cylinder 3 is connected with the movable frame 2, the rotary frame 4 is rotatably arranged on the movable frame 2, the rotating axis of the rotary frame 4 is perpendicular to the horizontal plane, the servo motor 5 is arranged on the movable frame 2, the servo motor 5 is connected with the rotary frame 4, more than three ejector rods 6 are vertically arranged on the rotary frame 4, more than three groups of second hydraulic cylinders 9 are vertically arranged on the rotary frame 4, the third hydraulic cylinder 10 is vertically arranged on the rotary frame 4 along the rotating axis of the rotary frame 4, more than three ejector rods 6 are uniformly arranged on the circumferential direction around the rotating axis of the rotary frame 4, the top of the ejector rod 6 is connected with the bottom of the test bed 8 through the knuckle bearing 7, more than three groups of second hydraulic cylinders 9 are uniformly arranged on the circumferential direction around the rotating axis of the rotating frame 4, the bottom of the second hydraulic cylinders 9 abuts against the top of the test bed 8, and the top of the third hydraulic cylinders 10 abuts against the bottom of the test bed 8.

Still include support piece 101, third pneumatic cylinder 10 with support piece 101's one end is connected, support piece 101's the other end is equipped with first sphere supporting part, the bottom of test bench 8 be equipped with first sphere supporting part complex second sphere supporting part. The test bed further comprises a pressing piece 91, the second hydraulic cylinder 9 is connected with one end of the pressing piece 91, a third spherical supporting portion is arranged at the other end of the pressing piece 91, and the third spherical supporting portion abuts against the top of the test bed 8. The top of test bench 8 is equipped with first draw-in groove, the bottom of second pneumatic cylinder 9 with first draw-in groove joint cooperation, the bottom of test bench 8 is equipped with the second draw-in groove, the top of third pneumatic cylinder 10 with the cooperation of second draw-in groove joint. The number of the push rods 6 and the number of the second hydraulic cylinders 9 are both odd numbers. The push rod 6 and the second hydraulic cylinder 9 are coaxially arranged. The cross section of the first slide rail 11 is in a shape of a T, the number of the first hydraulic cylinders 3 is two, and the two first hydraulic cylinders 3 are respectively arranged on two opposite sides of the movable frame 2. The servo motor 5 is connected with the rotating frame 4 through a gear set, the moving frame 2 is provided with an annular groove, and the rotating frame 4 is in sliding fit with the annular groove. Still include and separate cover and fan, separate the cover setting and be in on the frame 1, separate the cover will remove frame 2, first pneumatic cylinder 3, swivel mount 4, servo motor 5, ejector pin 6, joint bearing 7, test bench 8, second pneumatic cylinder 9 and third pneumatic cylinder 10 cover and locate in, the fan sets up separate the lateral wall of cover. And a test piece mounting table is arranged at the top of the test bed 8.

In summary, the invention provides a civil engineering structure anti-seismic testing device, a to-be-tested piece is fixed at the top of a test bed before use, when in use, more than three groups of second hydraulic cylinders and one group of third hydraulic cylinders are utilized to respectively abut against the test bed from the upper side and the lower side of the test bed, the horizontality of the test bed is ensured, then a servo motor is utilized to control a rotating frame to rotate on a moving frame, so that the orientation of the to-be-tested piece on the test bed is adjusted, then a first hydraulic cylinder is utilized to drive the moving frame and the rotating frame to horizontally reciprocate along a first sliding rail integrally, so that the transverse seismic situation of an earthquake is simulated, and the transverse seismic capacity of the to-be-tested structure is tested. When the longitudinal vibration condition of an earthquake needs to be simulated, the orientation of a to-be-tested piece on the test bed is adjusted, then the first hydraulic cylinder is used for controlling the movable frame to keep the horizontal position unchanged, the test bed is driven to vertically lift through more than three groups of second hydraulic cylinders and one group of third hydraulic cylinders, the joint bearings which can flexibly rotate and properly lift in a pressure fit mode are controlled, and the influence of different longitudinal wave vibrations on a to-be-tested structure can be tested. When the influence of transverse waves and longitudinal waves on the test piece is required to be tested simultaneously, when the situation of longitudinal vibration is simulated, a first hydraulic cylinder is added to simulate the transverse vibration, and meanwhile, the servo motor is used for controlling the rotation of the piece to be tested so as to simulate the situation of the piece to be tested when the piece to be tested is vibrated in different directions. The support piece is matched with the second spherical support part of the test bed through the first spherical support part, so that the friction force between the test bed and the support piece during tilting can be reduced. The pressing piece presses the top of the test bed through the third spherical supporting part, so that the friction force between the test bed and the supporting piece during tilting is reduced, and the simulation vibration precision is improved. The first clamping groove and the second clamping groove are used for clamping the second hydraulic cylinder and the third hydraulic cylinder respectively, and the second hydraulic cylinder and the third hydraulic cylinder are prevented from being separated from the test bed. The ejector pin and the second hydraulic cylinder are odd numbers, so that the simulation of longitudinal vibration is more real, and the test effect is improved. The ejector rod and the second hydraulic cylinder are coaxially arranged, so that the simulation of longitudinal vibration is more real, and the test effect is improved. The first slide rail adopts T font cross-section to the effect that the symmetry set up two sets of first pneumatic cylinders is all in order to improve the stability of removing the frame. The gear train is used for realizing that the transmission is connected between servo motor and the swivel mount, and the ring channel plays the effect that improves swivel mount rotational stability. The separation cover plays a role in reducing the interference of the environment to the test, and the fan is used for simulating the influence of different wind power on the piece to be tested. The test piece mounting table fixes the to-be-tested piece in a locking connection mode and the like, and the test precision is guaranteed. The civil engineering structure anti-seismic testing device provided by the invention eliminates the adverse effect of the elastic potential energy of the elastic connecting piece on the testing structure, improves the testing precision, can simulate the seismic tests under various conditions, and has a wide application range.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.