阅读说明：本技术 一种测量桥梁伸缩装置装配公差的设备及其测量方法 (Equipment and method for measuring assembly tolerance of bridge expansion device ) 是由 吴乔凤 高嵩 朱德祥 席恩伟 郭俊 孙继佳 周丞 于 2019-09-20 设计创作，主要内容包括：本发明涉及一种测量桥梁伸缩装置装配公差的设备及其使用方法,该设备不包括桥梁伸缩装置(13)；该设备包括中控模块(1)、电源模块(2)、步距电机(3)、丝杠(4)、步距滑动块(5)、步距导轨(6)、支撑模块(7)、移动夹具(8)、支撑导轨(9)、刻度尺(10)、滑动块(11)、滑动块夹具(12)、测量台(14)、固定夹具(15)。本发明具备的优点及效果：本发明在市场上未有成熟产品的前提下,结合实际工作的要求,以满足公路桥梁伸缩装置通用技术条件(JT/T 327-2016)标准中对桥梁伸缩缝装置装配公差相关参数要求来设计,一方面满足了实际检测工作开展的需求,另一方面以最新标准规范为依据,具有现实及创新的意义。(The invention relates to a device for measuring the assembly tolerance of a bridge expansion device and a use method thereof, wherein the device does not comprise a bridge expansion device (13); the device comprises a central control module (1), a power module (2), a step motor (3), a lead screw (4), a step sliding block (5), a step guide rail (6), a support module (7), a movable clamp (8), a support guide rail (9), a graduated scale (10), a sliding block (11), a sliding block clamp (12), a measuring table (14) and a fixed clamp (15). The invention has the advantages and effects that: on the premise that no mature product exists in the market, the invention is designed by combining the requirements of actual work to meet the requirements of assembly tolerance related parameters of the bridge expansion joint device in the JT/T327 & 2016 standard of the highway bridge expansion joint device, on one hand, the requirement of actual detection work development is met, and on the other hand, the invention has practical and innovative significance by taking the latest standard specification as the basis.)

1. a kind of equipment for measuring bridge extension joint build-up tolerance, which is characterized in that the equipment includes middle control module (1), electricity Source module (2), step pitch motor (3), lead screw (4), step pitch sliding shoe (5), step pitch guide rail (6), supporting module (7), mobile fixture (8), supporting guide (9), graduated scale (10), sliding shoe (11), sliding shoe fixture (12), test desk (14), stationary fixture (15)； The test desk (14) is set as rectangular list structure；Middle control module (1) is arranged in test desk (14) side；In test desk (14) upper surface is equidistantly fixedly installed several supporting guides (9), and graduated scale (10) are provided on supporting guide (9), are being propped up It supports and sliding shoe (11) is set on guide rail (9), sliding shoe (11) is slidably connected on supporting guide (9) along graduated scale (10) direction； Sliding shoe fixture (12) is arranged on sliding shoe (11) top, and the side of bridge extension joint to be measured (13) is by sliding shoe fixture (12) fixation is clamped；The other side of bridge extension joint (13) to be measured is provided with stationary fixture (15) company of being secured to It connects, stationary fixture (15) is fixedly connected by connecting rod (16) with mobile fixture (8)；Mobile fixture (8) is arranged by middle part Screw rod (17) is fixedly connected with step pitch sliding shoe (5), and screw rod (17) both ends are provided with nut；Screw rod (17) extends beyond measurement Supporting module (7) of platform (14) range with setting in test desk (14) side is connect；The supporting module (7) includes support rod (18), setting is in the step pitch sliding shoe (5) on support rod (18) top, step pitch motor (3), setting in step pitch sliding shoe (5) and step Away from the lead screw (4) between motor (3), the power module (2) that is connect with step pitch motor (3)；Power module (2) and middle control module (1) it connects.

2. the equipment of measurement bridge extension joint build-up tolerance according to claim 1, which is characterized in that described to prop up It supportting and sliding shoe (11) is set on guide rail (9), sliding shoe (11) is slidably connected on supporting guide (9) along graduated scale (10) direction, Specifically, being provided with prominent rail (19) on supporting guide (9), sliding shoe (11) lower part is provided with horizontal perforative groove (20), dash forward it is mutually chimeric between rail (19) and groove (20) after be cooperatively connected.

3. the equipment of measurement bridge extension joint build-up tolerance according to claim 1, which is characterized in that in test desk (14) bottom sides are provided with the extension surrounding edge (21) being linked together with test desk (14), and supporting module (7), which is fixed at, prolongs It opens up on surrounding edge (21).

4. the equipment of measurement bridge extension joint build-up tolerance according to claim 1, which is characterized in that the power supply Module (2) includes power supply and rectifier, and the power supply is connect by rectifier with step pitch motor (3).

5. the equipment of measurement bridge extension joint build-up tolerance according to claim 1, which is characterized in that the support Guide rail (9) quantity is 4, constitutes three sections of gaps between any two；The quantity of the stationary fixture (15) and supporting module (7) point It Wei not be 3；The stationary fixture (15) at both ends is positioned close to the position of outermost supporting guide (9), intermediate stationary fixture (15) it is arranged in the middle position of two supporting guides (9) in middle part.

6. the equipment of measurement bridge extension joint build-up tolerance according to claim 1, which is characterized in that the sliding Nut A (23) are provided on block fixture；Described screw rod (17) two sides are provided with nut B (22).

7. the method for the equipment using a kind of any measurement bridge extension joint build-up tolerance of claim 1 to 6, special Sign is, method includes the following steps: needing for bridge extension joint to connect with sliding shoe before (1) measurement and being mounted on workbench Supporting guide on, when installation, guarantee that inner side of slider is concordant with expansion joint inside；After installing, by sliding shoe fixture by one Side is fixed, when fixed, adjust the nut A (23) on sliding shoe fixture guarantee bridge extension joint in the horizontal direction with support Guide rail is vertical, by adjusting the nut A (23) on sliding shoe fixture and assists guaranteeing bridge extension joint water using horizontal ruler It is flat, reading A1, A2, A3, A4 on corresponding four graduated scales in fixing end slide position are read after fixing, the other end passes through movement Fixture is connected with step pitch motor, starts step pitch motor for bridge extension joint and is stretched to maximum open state, by adjusting movement Between fixture and step pitch sliding block the nut B (22) of connecting screw two sides come guarantee the side in the horizontal direction with supporting guide hang down Directly, bridge extension joint is installed to start to carry out the measurement of build-up tolerance；

(2) module is controlled in opening, the revolving speed of step pitch motor is set, moving direction ﹢ starts step pitch motor, and bridge is flexible at this time Device compression stops compression when it reaches most compressed state, record reading B1 on four supporting guide graduated scales, B2, B3, B4, the value S1, S1 for calculating (B1+B2+B3+B4-A1-A2-A3-A4)/4 are then bridge expansion joint installation maximum compression shape The plane overall width of state；

For modulus type expansion joint, each unit equidistantly chooses four position marks, utilizes vernier caliper measurement mark position Extended distance Y1i, Y2i, Y3i, Y4i calculate the average value Yi (i=1,2,3 ...) of Y1i+Y2i+Y3i+Y4i, compare between Yi Deviation, determine whether standardize regulation in the range of；Every unit mark position and mobile terminal are measured using precision level Height difference △ H1i, △ H2i, △ H3i, the △ H4i of fixing end calculate the average value △ Hi (i of △ H1i, △ H2i, △ H3i, △ H4i =1,2,3 ...), determine △ Hi whether in the range of standardizing allows；

(3) being arranged through the moving direction that middle control module controls step pitch motor is ﹣, starts step pitch motor, at this time the flexible dress of bridge Set and be stretched, when it reaches maximum tension state, stop stretching, record reading C1 on four supporting guide graduated scales, C2, C3, C4, the value S2, S2 for calculating (C1+C2+C3+C4-A1-A2-A3-A4)/4 are then bridge expansion joint installation maximum tension shape The plane overall width of state；

For modulus type expansion joint, the value of S1-T1, S2-T2 are calculated separately；T1, T2 are factory specifications and models plane beam overall angle value； By calculated result compared with standardizing defined deviation, determine whether in the range of standardizing regulation；

Being arranged through the moving direction that middle control module controls step pitch motor is ﹢, starts step pitch motor, at this time bridge extension joint quilt Compression when amount to be compressed is (S2-S1)/2, stops compression, utilizes precision level measurement markers position section both sides tooth plate Height difference △ H31, △ H32, △ H33, △ H34 calculate the average value △ H3 of △ H31, △ H32, △ H33, △ H34, calculated result Compared with being worth as defined in specification, determine whether in the range of standardizing regulation.

8. the method for the equipment using a kind of any measurement bridge extension joint build-up tolerance of claim 1 to 6, special Sign is, method includes the following steps: needing for bridge extension joint to connect with sliding shoe before (1) measurement and being mounted on workbench Supporting guide on, when installation, guarantee that inner side of slider is concordant with expansion joint inside；After installing, by sliding shoe fixture by one Side is fixed, when fixed, adjust the nut A (23) on sliding shoe fixture guarantee bridge extension joint in the horizontal direction with support Guide rail is vertical, by adjusting the nut A (23) on sliding shoe fixture and assists guaranteeing bridge extension joint water using horizontal ruler It is flat, reading A1, A2, A3, A4 on corresponding four graduated scales in fixing end slide position are read after fixing, the other end passes through movement Fixture is connected with step pitch motor, starts step pitch motor for bridge extension joint and is stretched to maximum open state, by adjusting movement Between fixture and step pitch sliding block the nut B (22) of connecting screw two sides come guarantee the side in the horizontal direction with supporting guide hang down Directly, bridge extension joint is installed to start to carry out the measurement of build-up tolerance；

(2) module is controlled in opening, the revolving speed of step pitch motor is set, moving direction ﹢ starts step pitch motor, and bridge is flexible at this time Device compression stops compression when it reaches most compressed state, record reading B1 on four supporting guide graduated scales, B2, B3, B4, the value S1, S1 for calculating (B1+B2+B3+B4-A1-A2-A3-A4)/4 are then bridge expansion joint installation maximum compression shape The plane overall width of state；

Four position marks are equidistantly chosen, between the longitudinal direction using vernier caliper measurement mark position in expansion joint board-like for comb teeth Gap Y1, Y2, Y3, Y4, lateral clearance X1, X2, X3, X4 utilize height difference △ H11, the △ of precision level measurement markers position H12, △ H13, △ H14, calculate separately Y1, Y2, Y3, Y4；X1,X2,X3,X4；△ H11, △ H12, △ H13, △ H14 are averaged Value Y, X, △ H1 determines whether in the range of standardizing regulation by calculated result compared with code requirement value；

(3) being arranged through the moving direction that middle control module controls step pitch motor is ﹣, starts step pitch motor, at this time the flexible dress of bridge Set and be stretched, when it reaches maximum tension state, stop stretching, record reading C1 on four supporting guide graduated scales, C2, C3, C4, the value S2, S2 for calculating (C1+C2+C3+C4-A1-A2-A3-A4)/4 are then bridge expansion joint installation maximum tension shape The plane overall width of state；

Expansion joint board-like for comb teeth is utilized using the tooth plate lap of splice D1, D2, D3, D4 of vernier caliper measurement mark position Height difference △ H21, △ H22, △ H23, the △ H24 of precision level measurement markers position section both sides tooth plate, calculate D1, D2, D3, Average value X', △ H2 of D4 and △ H21, △ H22, △ H23, △ H24, compared with the value of code requirement, judgement is calculated result It is no standardize regulation in the range of；

Being arranged through the moving direction that middle control module controls step pitch motor is ﹢, starts step pitch motor, at this time bridge extension joint quilt Compression when amount to be compressed is (S2-S1)/2, stops compression, utilizes precision level measurement markers position section both sides tooth plate Height difference △ H31, △ H32, △ H33, △ H34 calculate the average value △ H3 of △ H31, △ H32, △ H33, △ H34, calculated result Compared with being worth as defined in specification, determine whether in the range of standardizing regulation.

Technical field

The present invention relates to it is a kind of measure bridge extension joint build-up tolerance device structure technical field, more particularly, to Use the measurement method of the equipment.

Background technique

According to Expansion Units for Highway Bridges general technical specifications (JT/T 327-2016) standard requirements, highway bridge is being carried out When the factory of beam telescopic device is with type inspection, its build-up tolerance need to be detected, meanwhile, it is printed and distributed in Department of Transportation " public Road marine traffic engineering testing inspection mechanism classification standard " in, it also specifies with highway engineering comprehensive first class, highway engineering bridge tunnel The testing inspection unit of road specialty work qualification wants that Test Detection Work can be carried out to this parameter.Currently, in the market not There is mature product that can carry out the detection work of Expansion Units for Highway Bridges build-up tolerance, therefore, it is necessary to a kind of new equipment To meet the requirement of bridge extension joint detection.

Summary of the invention

To solve the above problems, the present invention provides a kind of equipment and its measurement using measurement bridge expanssion joint build-up tolerance Method.

The present invention is achieved through the following technical solutions.

A kind of equipment measuring bridge extension joint build-up tolerance, which does not include bridge extension joint；The equipment packet Include middle control module, power module, step pitch motor, lead screw, step pitch sliding shoe, step pitch guide rail, supporting module, mobile fixture, support Guide rail, graduated scale, sliding shoe, sliding shoe fixture, test desk, stationary fixture；The test desk is set as rectangular list structure； Middle control module is arranged in test desk side；Several supporting guides, supporting guide are equidistantly fixedly installed in the upper surface of test desk On be provided with graduated scale, sliding shoe is set on supporting guide, and sliding shoe is slidably connected on supporting guide along graduated scale direction； Sliding shoe fixture is arranged on sliding shoe top, and fixation is clamped by sliding shoe fixture in the side of bridge extension joint to be measured；In The other side of bridge extension joint to be measured is provided with stationary fixture and is firmly connected with it, and stationary fixture is by connecting rod and moves Dynamic fixture is fixedly connected；The screw rod that mobile fixture is arranged by middle part is fixedly connected with step pitch sliding shoe, is arranged at screw rod both ends There is nut；Screw rod extends beyond test desk range and connect with the supporting module that test desk side is arranged in；The supporting module Including support rod, the step pitch sliding shoe that support rod top is set, step pitch motor, setting step pitch sliding shoe and step pitch motor it Between lead screw, the power module that is connect with step pitch motor；Power module is connect with middle control module.

It is further that of the present invention that sliding shoe is arranged on supporting guide, sliding shoe is on supporting guide along scale Ruler direction is slidably connected, specifically, being provided with prominent rail on supporting guide, is provided in sliding shoe lower part horizontal perforative recessed Slot is cooperatively connected after mutually chimeric between prominent rail and groove.

It is further that the present invention is provided with the extension surrounding edge being linked together with test desk in test desk bottom sides, support Module is fixed on extension surrounding edge.Being designed in this way can make measurement accuracy higher.

Further be that power module of the present invention includes power supply and rectifier, the power supply by rectifier with The connection of step pitch motor.Power module converts alternating current to direct current.

Further it is that supporting guide quantity of the present invention is 4, constitutes three sections of gaps between any two；Described consolidates The quantity of clamp tool and supporting module is respectively 3；The stationary fixture at both ends is positioned close to the position of outermost supporting guide It sets, the middle position of two supporting guides in middle part is arranged in intermediate stationary fixture.

It is further to be provided with nut A on sliding shoe fixture of the present invention；The screw rod two sides are provided with nut B。

The present apparatus can measure the build-up tolerance of modulus type, the board-like bridge extension joint of comb teeth, specific as follows:

One, the application method of above-mentioned a kind of equipment for measuring bridge extension joint build-up tolerance, this method includes following step It is rapid: (1) it needs bridge extension joint to be connect and is mounted on sliding shoe on the supporting guide of workbench before measuring, when installation, guarantor It is concordant on the inside of expansion joint to demonstrate,prove inner side of slider；After installing, side is fixed by sliding shoe fixture, when fixed, adjusts sliding Nut A on block fixture guarantees that bridge extension joint is vertical with supporting guide in the horizontal direction, by adjusting sliding shoe folder Nut A and auxiliary on tool guarantee bridge extension joint level using horizontal ruler, and fixing end slide position is read after fixing Reading A1, A2, A3, A4 on corresponding four graduated scales, the other end are connected by mobile fixture with step pitch motor, starting step pitch electricity Bridge extension joint is stretched to maximum open state by machine, by adjusting connecting screw two sides between mobile fixture and step pitch sliding block Nut B guarantee that the side is vertical with supporting guide in the horizontal direction, to install bridge extension joint can start to be filled Measurement with tolerance.

(2) module is controlled in opening, the revolving speed of step pitch motor is set, moving direction ﹢ starts step pitch motor, at this time bridge Telescopic device compression stops compression, records the reading on four supporting guide graduated scales when it reaches most compressed state B1, B2, B3, B4, the value S1, S1 for calculating (B1+B2+B3+B4-A1-A2-A3-A4)/4 are then bridge expansion joint installation maximum pressure The plane overall width of contracting state.

For modulus type expansion joint, each unit equidistantly chooses four position marks, utilizes vernier caliper measurement marker bit Extended distance Y1i, Y2i, Y3i, the Y4i set calculates the average value Yi (i=1,2,3 ...) of Y1i+Y2i+Y3i+Y4i, compares Yi Between deviation, determine whether standardize regulation in the range of；Every unit mark position is measured using precision level and is moved Height difference △ H1i, △ H2i, △ H3i, the △ H4i of moved end fixing end calculate the average value △ of △ H1i, △ H2i, △ H3i, △ H4i Whether Hi (i=1,2,3 ...) determines △ Hi in the range of standardizing allows.

(3) being arranged through the moving direction that middle control module controls step pitch motor is ﹣, starts step pitch motor, bridge is stretched at this time Compression apparatus is stretched, and when it reaches maximum tension state, stops stretching, records the reading on four supporting guide graduated scales C1, C2, C3, C4, the value S2, S2 for calculating (C1+C2+C3+C4-A1-A2-A3-A4)/4 are then that bridge expansion joint installation maximum is drawn Stretch the plane overall width of state.

For modulus type expansion joint, calculating separately the value of S1-T1, S2-T2, (T1, T2 are factory specifications and models plane beam overall Angle value), by calculated result compared with standardizing defined deviation, determine whether in the range of standardizing regulation.

Being arranged through the moving direction that middle control module controls step pitch motor is ﹢, starts step pitch motor, at this time the flexible dress of bridge It sets and is compressed, when amount to be compressed is (S2-S1)/2, stops compression, utilize precision level measurement markers position section both sides Height difference △ H31, △ H32, △ H33, △ H34 calculate the average value △ H3 of △ H31, △ H32, △ H33, △ H34, calculated result Compared with being worth as defined in specification, determine whether in the range of standardizing regulation.

Two, the application method of above-mentioned a kind of equipment for measuring bridge extension joint build-up tolerance, this method includes following step It is rapid: (1) it needs bridge extension joint to be connect and is mounted on sliding shoe on the supporting guide of workbench before measuring, when installation, guarantor It is concordant on the inside of expansion joint to demonstrate,prove inner side of slider；After installing, side is fixed by sliding shoe fixture, when fixed, adjusts sliding Nut A on block fixture guarantees that bridge extension joint is vertical with supporting guide in the horizontal direction, by adjusting sliding shoe folder Nut A and auxiliary on tool guarantee bridge extension joint level using horizontal ruler, and fixing end slide position is read after fixing Reading A1, A2, A3, A4 on corresponding four graduated scales, the other end are connected by mobile fixture with step pitch motor, starting step pitch electricity Bridge extension joint is stretched to maximum open state by machine, by adjusting connecting screw two sides between mobile fixture and step pitch sliding block Nut B guarantee that the side is vertical with supporting guide in the horizontal direction, to install bridge extension joint can start to be filled Measurement with tolerance.

(2) module is controlled in opening, the revolving speed of step pitch motor is set, moving direction ﹢ starts step pitch motor, at this time bridge Telescopic device compression stops compression, records the reading on four supporting guide graduated scales when it reaches most compressed state B1, B2, B3, B4, the value S1, S1 for calculating (B1+B2+B3+B4-A1-A2-A3-A4)/4 are then bridge expansion joint installation maximum pressure The plane overall width of contracting state.

Four position marks are equidistantly chosen at expansion joint board-like for comb teeth, utilize the vertical of vernier caliper measurement mark position To gap Y1, Y2, Y3, Y4, lateral clearance X1, X2, X3, X4, using height difference △ H11 of precision level measurement markers position, △ H12, △ H13, △ H14, calculate separately Y1, Y2, Y3, Y4；X1,X2,X3,X4；△ H11, △ H12, △ H13, △ H14 it is flat Mean value Y, X, △ H1 determines whether in the range of standardizing regulation by calculated result compared with code requirement value.

(3) being arranged through the moving direction that middle control module controls step pitch motor is ﹣, starts step pitch motor, bridge is stretched at this time Compression apparatus is stretched, and when it reaches maximum tension state, stops stretching, records the reading on four supporting guide graduated scales C1, C2, C3, C4, the value S2, S2 for calculating (C1+C2+C3+C4-A1-A2-A3-A4)/4 are then that bridge expansion joint installation maximum is drawn Stretch the plane overall width of state.

Expansion joint board-like for comb teeth, using the tooth plate lap of splice D1, D2, D3, D4 of vernier caliper measurement mark position, Using height difference △ H21, △ H22, △ H23, the △ H24 of precision level measurement markers position section both sides tooth plate, calculate D1, Average value X', △ H2 of D2, D3, D4 and △ H21, △ H22, △ H23, △ H24, calculated result compared with the value of code requirement, Determine whether in the range of standardizing regulation；

Being arranged through the moving direction that middle control module controls step pitch motor is ﹢, starts step pitch motor, at this time the flexible dress of bridge It sets and is compressed, when amount to be compressed is (S2-S1)/2, stops compression, utilize two heel teeth of precision level measurement markers position section Height difference △ H31, △ H32, △ H33, the △ H34 of plate calculate the average value △ H3 of △ H31, △ H32, △ H33, △ H34, calculate As a result compared with being worth as defined in specification, determine whether in the range of standardizing regulation.

The advantages of present invention has and effect: under the premise of the present invention does not have matured product on the market, in conjunction with practical work The requirement of work, to meet in Expansion Units for Highway Bridges general technical specifications (JT/T 327-2016) standard to bridge expanssion joint Device build-up tolerance relevant parameter requires on the one hand to meet the demand that actually detected work is carried out to design, on the other hand with Newest standards specification is foundation, has the meaning of reality and innovation.

The present invention is further explained with reference to the accompanying drawings and detailed description.

Detailed description of the invention

Fig. 1 is schematic structural view of the invention.

Appended drawing reference are as follows: the equipment includes middle control module (1), power module (2), step pitch motor (3), lead screw (4), step pitch Sliding shoe (5), step pitch guide rail (6), supporting module (7), mobile fixture (8), supporting guide (9), graduated scale (10), sliding shoe (11), sliding shoe fixture (12), bridge extension joint (13), test desk (14), stationary fixture (15), connecting rod (16), screw rod (17), support rod (18), prominent rail (19), groove (20), extension surrounding edge (21), nut B (22), nut A (23).

Specific embodiment

A kind of equipment measuring bridge extension joint build-up tolerance, which does not include bridge extension joint 13；The equipment Including middle control module 1, power module 2, step pitch motor 3, lead screw 4, step pitch sliding shoe 5, step pitch guide rail 6, supporting module 7, movement Fixture 8, supporting guide 9, graduated scale 10, sliding shoe 11, sliding shoe fixture 12, test desk 14, stationary fixture 15.The measurement Platform 14 is set as rectangular list structure；Middle control module 1 is arranged in 14 side of test desk；It is equidistantly fixed in the upper surface of test desk 14 Several supporting guides 9 are provided with, are provided with graduated scale 10 on supporting guide 9, sliding shoe 11, sliding are set on supporting guide 9 Block 11 is slidably connected on supporting guide 9 along 10 direction of graduated scale；The setting of sliding shoe fixture 12 is to be measured on 11 top of sliding shoe The side of bridge extension joint 13 fixation is clamped by sliding shoe fixture 12；In the other side of bridge extension joint 13 to be measured It is provided with stationary fixture 15 to be firmly connected with it, stationary fixture 15 is fixedly connected by connecting rod 16 with mobile fixture 8；Mobile folder Tool 8 is fixedly connected by the screw rod 17 that middle part is arranged with step pitch sliding shoe 5, and 17 both ends of screw rod are provided with nut；Screw rod 17 prolongs It stretches and is connect beyond 14 range of test desk with the supporting module 7 that 14 side of test desk is arranged in；The supporting module 7 includes support Bar 18, the step pitch sliding shoe 5 that 18 top of support rod is set, step pitch motor 3, setting step pitch sliding shoe 5 and step pitch motor 3 it Between lead screw 4, the power module 2 that is connect with step pitch motor 3；Power module 2 is connect with middle control module 1.

It is further that of the present invention that sliding shoe 11 is arranged on supporting guide 9, sliding shoe 11 is on supporting guide 9 It is slidably connected along 10 direction of graduated scale, specifically, being provided with prominent rail 19 on supporting guide 9, is provided in 11 lower part of sliding shoe Horizontal perforative groove 20 is cooperatively connected after mutually chimeric between prominent rail 19 and groove 20.

It is further that the present invention is provided with the extension surrounding edge being linked together with test desk 14 in 14 bottom sides of test desk 21, supporting module 7 is fixed on extension surrounding edge 21.Being designed in this way can make measurement accuracy higher.

Further be, power module 2 of the present invention include power supply and rectifier, the power supply by rectifier with Step pitch motor 3 connects.Power module 2 converts alternating current to direct current.

Further it is that 9 quantity of supporting guide of the present invention is 4, constitutes three sections of gaps between any two；Described consolidates The quantity of clamp tool 15 and supporting module 7 is respectively 3；The stationary fixture 15 at both ends is positioned close to outermost supporting guide The middle position of two supporting guides 9 in middle part is arranged in 9 position, intermediate stationary fixture 15.

It is further to be provided with nut A 23 on sliding shoe fixture of the present invention；17 two sides of the screw rod setting There is nut B 22.

The present apparatus can measure the build-up tolerance of modulus type, the board-like bridge extension joint of comb teeth, specific as follows:

One, the application method of above-mentioned a kind of equipment for measuring bridge extension joint build-up tolerance, this method includes following step It is rapid: (1) it needs bridge extension joint to be connect and is mounted on sliding shoe on the supporting guide of workbench before measuring, when installation, guarantor It is concordant on the inside of expansion joint to demonstrate,prove inner side of slider；After installing, side is fixed by sliding shoe fixture, when fixed, adjusts sliding Nut A23 on block fixture guarantees that bridge extension joint is vertical with supporting guide in the horizontal direction, by adjusting sliding shoe Nut A 23 and auxiliary on fixture guarantee bridge extension joint level using horizontal ruler, and fixing end sliding block is read after fixing Reading A1, A2, A3, A4 on corresponding four graduated scales in position, the other end are connected by mobile fixture with step pitch motor, starting step Bridge extension joint is stretched to maximum open state away from motor, by adjusting connecting screw between mobile fixture and step pitch sliding block The nut B 22 of two sides guarantees that the side is vertical with supporting guide in the horizontal direction, and to install bridge extension joint can start Carry out the measurement of build-up tolerance.

(2) module is controlled in opening, the revolving speed of setting step pitch motor is 10r/s, moving direction ﹢, start step pitch motor, this When bridge extension joint compress, when it reaches most compressed state, stop compression, record on four supporting guide graduated scales Reading B1, B2, B3, B4, calculate (B1+B2+B3+B4-A1-A2-A3-A4)/4 value S1, S1 be then bridge expansion joint installation The plane overall width of most compressed state.

For modulus type expansion joint, each unit equidistantly chooses four position marks, utilizes vernier caliper measurement marker bit Extended distance Y1i, Y2i, Y3i, the Y4i set calculates the average value Yi (i=1,2,3 ...) of Y1i+Y2i+Y3i+Y4i, compares Yi Between deviation, determine whether standardize regulation in the range of；Every unit mark position is measured using precision level and is moved Height difference △ H1i, △ H2i, △ H3i, the △ H4i of moved end fixing end calculate the average value △ of △ H1i, △ H2i, △ H3i, △ H4i Whether Hi (i=1,2,3 ...) determines △ Hi in the range of standardizing allows.

(3) being arranged through the moving direction that middle control module controls step pitch motor is ﹣, starts step pitch motor, bridge is stretched at this time Compression apparatus is stretched, and when it reaches maximum tension state, stops stretching, records the reading on four supporting guide graduated scales C1, C2, C3, C4, the value S2, S2 for calculating (C1+C2+C3+C4-A1-A2-A3-A4)/4 are then that bridge expansion joint installation maximum is drawn Stretch the plane overall width of state.

For modulus type expansion joint, calculating separately the value of S1-T1, S2-T2, (T1, T2 are factory specifications and models plane beam overall Angle value), by calculated result compared with standardizing defined deviation, determine whether in the range of standardizing regulation.

Being arranged through the moving direction that middle control module controls step pitch motor is ﹢, starts step pitch motor, at this time the flexible dress of bridge It sets and is compressed, when amount to be compressed is (S2-S1)/2, stops compression, utilize two heel teeth of precision level measurement markers position section Height difference △ H31, △ H32, △ H33, the △ H34 of plate calculate the average value △ H3 of △ H31, △ H32, △ H33, △ H34, calculate As a result compared with being worth as defined in specification, determine whether in the range of standardizing regulation.

Two, the application method of above-mentioned a kind of equipment for measuring bridge extension joint build-up tolerance, this method includes following step It is rapid: (1) it needs bridge extension joint to be connect and is mounted on sliding shoe on the supporting guide of workbench before measuring, when installation, guarantor It is concordant on the inside of expansion joint to demonstrate,prove inner side of slider；After installing, side is fixed by sliding shoe fixture, when fixed, adjusts sliding Nut A23 on block fixture guarantees that bridge extension joint is vertical with supporting guide in the horizontal direction, by adjusting sliding shoe Nut A 23 and auxiliary on fixture guarantee bridge extension joint level using horizontal ruler, and fixing end sliding block is read after fixing Reading A1, A2, A3, A4 on corresponding four graduated scales in position, the other end are connected by mobile fixture with step pitch motor, starting step Bridge extension joint is stretched to maximum open state away from motor, by adjusting connecting screw between mobile fixture and step pitch sliding block The nut B 22 of two sides guarantees that the side is vertical with supporting guide in the horizontal direction, and to install bridge extension joint can start Carry out the measurement of build-up tolerance.

(2) module is controlled in opening, the revolving speed of setting step pitch motor is 10r/s, moving direction ﹢, start step pitch motor, this When bridge extension joint compress, when it reaches most compressed state, stop compression, record on four supporting guide graduated scales Reading B1, B2, B3, B4, calculate (B1+B2+B3+B4-A1-A2-A3-A4)/4 value S1, S1 be then bridge expansion joint installation The plane overall width of most compressed state.

Four position marks are equidistantly chosen at expansion joint board-like for comb teeth, utilize the vertical of vernier caliper measurement mark position To gap Y1, Y2, Y3, Y4, lateral clearance X1, X2, X3, X4, using height difference △ H11 of precision level measurement markers position, △ H12, △ H13, △ H14, calculate separately Y1, Y2, Y3, Y4；X1,X2,X3,X4；△ H11, △ H12, △ H13, △ H14 it is flat Mean value Y, X, △ H1 determines whether in the range of standardizing regulation by calculated result compared with code requirement value.

(3) being arranged through the moving direction that middle control module controls step pitch motor is ﹣, starts step pitch motor, bridge is stretched at this time Compression apparatus is stretched, and when it reaches maximum tension state, stops stretching, records the reading on four supporting guide graduated scales C1, C2, C3, C4, the value S2, S2 for calculating (C1+C2+C3+C4-A1-A2-A3-A4)/4 are then that bridge expansion joint installation maximum is drawn Stretch the plane overall width of state.

Expansion joint board-like for comb teeth, using the tooth plate lap of splice D1, D2, D3, D4 of vernier caliper measurement mark position, Using height difference △ H21, △ H22, △ H23, the △ H24 of precision level measurement markers position section both sides tooth plate, calculate D1, Average value X', △ H2 of D2, D3, D4 and △ H21, △ H22, △ H23, △ H24, calculated result compared with the value of code requirement, Determine whether in the range of standardizing regulation；

Being arranged through the moving direction that middle control module controls step pitch motor is ﹢, starts step pitch motor, at this time the flexible dress of bridge It sets and is compressed, when amount to be compressed is (S2-S1)/2, stops compression, utilize two heel teeth of precision level measurement markers position section Height difference △ H31, △ H32, △ H33, the △ H34 of plate calculate the average value △ H3 of △ H31, △ H32, △ H33, △ H34, calculate As a result compared with being worth as defined in specification, determine whether in the range of standardizing regulation.

Installation instructions (part): four supporting guides 9 are equidistantly fixedly mounted on test desk 14, each supporting guide Dress is respectively arranged with graduated scale 10 on 9, and the moving distance of sliding shoe 11 is determined using graduated scale；Sliding shoe 11 is mounted on support to lead It is using sliding shoe fixture 12 that bridge extension joint 13 and sliding shoe 11 is fixed on rail 9, so that bridge extension joint 13 is supporting It is moved on guide rail 9,13 side of bridge extension joint is fixed using stationary fixture 15 and test desk 14, and the other side passes through mobile fixture 8 connect with step pitch sliding shoe 5, so that 13 side of bridge extension joint is fixed, which simulates abutment position, and the other side passes through The movement of step pitch sliding shoe 5 drives the side to move on supporting guide 9, which intends bridge beam end position；Utilize step pitch electricity The rotation that machine 3 controls lead screw 4 comes so that step pitch sliding shoe 5 moves on step pitch guide rail 6, step pitch motor 3 and power module 2 and in Module 1 to be controlled to connect, power module 2 is to convert alternating current to direct current as the power supply of step pitch motor 3, and middle control module 1 is control terminal, The revolving speed and rotation direction of step pitch motor 3 are controlled by the setting of parameter, thus the step pitch sliding shoe that control is connect with lead screw 4 5 movement speed and direction；Power module 2, step pitch motor 3, lead screw 4, step pitch sliding shoe 5, step pitch guide rail 6 are installed in support In module 7, supporting module 7 is fixedly mounted on the ground before test desk 13.