Plate-type rubber support capable of monitoring stress and bearing capacity

Abstract

The utility model belongs to the technical field of rubber supports, and particularly relates to a plate type rubber support capable of monitoring stress and bearing capacity, which comprises an upper support plate, a lower support plate and a rubber plate arranged between the upper support plate and the lower support plate, a pressure sensor is arranged between the lower support plate and the rubber plate, the lower support plate is of a groove-shaped structure, and the rubber plate is provided with a pressure sensor. A fixing base is arranged in the groove of the lower support plate and is of a plate-shaped structure, and a fixing groove for containing a pressure sensor is formed in the surface of the fixing base. According to the utility model, the pressure sensor is fixed through the fixing cavity of the fixing seat, so that the position of the pressure sensor is fixed, the displacement of the pressure sensor is avoided, and the accuracy of monitoring data is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rubber support technical field, concretely relates to the plate type rubber support of monitoring stress and bearing capacity. BACKGROUND

[0002] The rubber support is the important stressed component and force transmission device connecting the bridge and the cushion stone, the stress and bearing capacity of the rubber support are monitored through the setting pressure sensor, the influence and change rule of various factors on the bridge can be analyzed, thereby the safety use of the bridge is forecasted and planned.

[0003] The current monitorable rubber support, the pressure sensor is placed directly between the rubber support and the lower support plate, and needs to be evenly distributed with multiple groups of pressure sensors to ensure the accuracy of detection, but in the actual installation process, it is impossible to ensure that each pressure sensor maintains a vertical state, and the deviation of the pressure sensor will affect the accuracy of the detection data. UTILITY MODEL CONTENT

[0004] In order to solve the problems existing in the prior art, the utility model provides a plate type rubber support of monitoring stress and bearing capacity, the pressure sensor is fixed through the fixing chamber of the fixing seat, so that the position of the pressure sensor is fixed, the displacement of the pressure sensor is avoided, and the accuracy of the monitoring data is ensured.

[0005] The specific technical scheme adopted by the utility model is:

[0006] The plate type rubber support of monitoring stress and bearing capacity, including upper support plate, lower support plate and rubber plate between the upper support plate and the lower support plate, the pressure sensor is arranged between the lower support plate and the rubber plate, the lower support plate is recessed groove structure, the fixing seat is arranged in the recess of the lower support plate, the fixing seat is plate structure, and the fixing groove for placing the pressure sensor is arranged on the surface of the fixing seat.

[0007] The top surface of the pressure sensor is flush with the top surface of the fixing seat, and the rubber plate is in contact with the pressure sensor through the opening side of the fixing groove.

[0008] A plurality of groups of pressure sensors are arranged on the fixing seat along the circumference.

[0009] The gap between the inner wall of the lower support plate and the side wall of the rubber plate is provided with a ring-shaped sealing ring, and a drainage hole penetrating through the side wall of the lower support plate is arranged above the sealing ring.

[0010] The drainage hole is arranged in an inclined manner, the input end of the drainage hole is higher than the output end of the drainage hole, the width of the input end of the drainage hole in the vertical direction is greater than that of the output end of the drainage hole, and the lower surface of the input end of the drainage hole is lower than the upper surface of the sealing ring.

[0011] A gasket and an anti-abrasion plate are arranged between the rubber plate and the upper support plate, the upper surface of the gasket is in abutment with the lower surface of the upper support plate, the lower surface of the gasket is in abutment with the upper surface of the anti-abrasion plate, and the lower surface of the anti-abrasion plate is in abutment with the rubber plate.

[0012] A laser ranging sensor is further arranged between the upper support plate and the lower support plate, the side wall of the lower support plate is provided with a sliding groove in the vertical direction, the side wall of the laser ranging sensor is provided with a sliding block matched with the sliding groove, and the laser ranging sensor is fixedly connected with the side wall of the lower support plate through the sliding groove.

[0013] A data acquisition device is further arranged on the upper surface of the side wall of the lower support plate, the data output ends of the pressure sensor and the laser ranging sensor are connected with the data receiving end of the data acquisition device through cables, and the data output end of the data acquisition device is connected with a data computer through a transmission module.

[0014] The rubber plate is fixedly arranged on the upper surface of the upper support plate, the lower surface of the rubber plate is in abutment with the upper surface of the anti-abrasion plate, the anti-abrasion plate is in abutment with the gasket, and the gasket is in abutment with the lower surface of the upper support plate.

[0015] The fixing seat is arranged, a proper number of pressure sensors are selected according to the size of the rubber plate and are uniformly distributed in the fixing seat, the fixing grooves of the fixing seat are used for fixing the pressure sensors, so that the position of the pressure sensor is fixed, displacement of the pressure sensor is avoided, and the accuracy of monitoring data is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a structure schematic diagram;

[0017] Figure 2 It is the overhead structure schematic diagram of fixing seat;

[0018] Figure 3 It is Figure 1 The enlarged structure schematic diagram of A part in middle;

[0019] Figure 4 It is Figure 1 The enlarged structure schematic diagram of B part in middle;

[0020] Figure 5 It is the cooperation schematic diagram of sliding groove and sliding block;

[0021] Figure 6 It is the structure schematic diagram of pressure sensor;

[0022] In the drawings, 1, upper support plate, 2, lower support plate, 3, rubber plate, 4, pressure sensor, 5, fixing seat, 6, sealing ring, 7, drain hole, 8, gasket, 9, anti-abrasion plate, 10, laser ranging sensor, 11, sliding groove, 12, sliding block, 13, data acquisition device, 14, data computer, 15, probe, 16, steel ball, 17, elastic unit, 18, strain gauge. DETAILED DESCRIPTION

[0023] The utility model is further described below in combination with the drawings and specific embodiments:

[0024] Specific embodiments, such as Figures 1-6 As shown in the utility model provides a kind of force and bearing capacity plate type rubber support of monitoring, including upper support plate 1, lower support plate 2 and the rubber plate 3 between upper support plate 1 and lower support plate 2, pressure sensor 4 is arranged between lower support plate 2 and rubber plate 3, lower support plate 2 is recessed structure, fixed seat 5 is arranged in the recess of lower support plate 2, the fixed seat 5 is plate structure, and fixed groove for placing pressure sensor 4 is arranged on the surface of fixed seat 5.

[0025] The pressure sensor 4 of current monitorable rubber support is directly placed between rubber support and lower support plate 2, and multiple groups of pressure sensor 4 need to be evenly distributed to ensure the accuracy of detection, but in actual installation process, it cannot be guaranteed that each pressure sensor 4 maintains vertical state, and the deviation of pressure sensor 4 will affect the accuracy of detection data.

[0026] Therefore, the utility model is provided with fixed seat 5, according to the size of rubber plate 3, the appropriate number of pressure sensor 4 is evenly distributed in fixed seat 5, and the fixed groove of fixed seat 5 is used to fix pressure sensor 4, so that the position of pressure sensor 4 is fixed, the displacement of pressure sensor 4 is avoided, and the accuracy of monitoring data is ensured.

[0027] In addition, the pressure sensor 4 in the utility model is arranged between rubber plate 3 and lower support plate 2, since rubber plate 3 itself has buffering property, the high-frequency impact generated when the vehicle passes will be buffered in rubber plate 3 and then transmitted to pressure sensor 4, so that the cracking of pressure sensor 4 or the disconnection of cable can be avoided, and the long-term stability requirement of bridge rubber support can be met.

[0028] As Figure 1 As shown, the top surface of pressure sensor 4 is flush with the top surface of fixed seat 5, and rubber plate 3 is in contact with pressure sensor 4 through the opening side of fixed groove. Since rubber plate 3 itself has elasticity, and fixed seat 5 is metal plate material, the deformation is relatively low, when bridge support is subjected to pressure, rubber plate 3 deforms, the area of rubber plate 3 located at the opening of fixed groove deforms and is extruded downward, so as to be in contact with pressure sensor 4 and be monitored, which can avoid the cracking of pressure sensor 4 due to excessive lateral force, and since multiple groups of pressure sensor 4 are evenly arranged, when the pressure detected by pressure sensor 4 on one side is much greater than the pressure detected by pressure sensor 4 on the other side, it indicates that the rubber support is abnormal, and needs to be repaired in time.

[0029] As Figures 1-2 shown, the fixed seat 5 is provided with a plurality of groups of pressure sensors 4 arranged in a circumferential array, and the plurality of groups of uniformly arranged pressure sensors 4 can evenly distribute the high pressure and high frequency impact generated, so as to avoid the stress concentration and cause the fracture of a certain pressure sensor 4.

[0030] As Figure 1 and Figure 3 shown, the gap between the inner wall of the lower support plate 2 and the side wall of the rubber plate 3 is provided with a ring-shaped sealing ring 6, and the sealing ring 6 is provided with a drainage hole 7 penetrating through the side wall of the lower support plate 2. In the utility model, the sealing ring 6 and the drainage hole 7 are arranged, the rainwater can be effectively blocked from penetrating through the sealing ring 6, so as to avoid the direct contact of the rainwater with the strain gauge 18, but due to the acid substances contained in the rainwater, the sealing ring 6 made of rubber material may react after being soaked in the rainwater for a long time, so as to cause the rapid aging and failure of the sealing ring 6. Therefore, the drainage hole 7 is further arranged, so that the rainwater can be discharged in time through the drainage hole 7, and the rainwater accumulated on the sealing ring 6 can be prevented from corroding the sealing ring 6.

[0031] As Figure 1 and Figure 3 shown, the drainage hole 7 is arranged in an inclined manner, the input end of the drainage hole 7 is higher than the output end of the drainage hole 7, the width of the input end of the drainage hole 7 in the vertical direction is greater than that of the output end of the drainage hole 7, and the lower surface of the input end of the drainage hole 7 is lower than the upper surface of the sealing ring 6. The input end of the conventional drainage hole 7 is generally in a circular hole structure, and the bottom of the input end of the drainage hole 7 is flush with the upper surface of the sealing ring 6. When the water level of the accumulated rainwater is low, a small amount of rainwater cannot be discharged. Therefore, in the utility model, the drainage hole 7 is punched in an inclined direction, and then the bottom of the input end of the drainage hole 7 is taken as an initial position, and the inner side of the lower support plate 2 is punched in an inclined direction with a smaller inclined angle to the outer side and communicated with the drainage hole 7. At this time, the input end of the drainage hole 7 is in a long circular hole shape, the range of the input end is large, the collection range of the rainwater can be expanded, and the guiding effect of the rainwater is enhanced due to the lower lower surface of the input end of the drainage hole 7 than the upper surface of the sealing ring 6, so that the rainwater accumulated on the sealing ring 6 can flow into the drainage hole 7 and be discharged, and the waterproof and drainage function of the support is improved.

[0032] As Figure 1 and Figure 4As shown, the rubber plate 3 and the upper support plate 1 are provided with a pad 8 and an anti-wear plate 9, the upper surface of the pad 8 is in abutment with the lower surface of the upper support plate 1, the lower surface of the pad 8 is in abutment with the upper surface of the anti-wear plate 9, and the lower surface of the anti-wear plate 9 is in abutment with the rubber plate 3. Due to the elastic properties of the rubber plate 3, the rubber plate 3 will deform after being stressed, so that the force transmitted by the upper support plate 1 cannot be uniformly distributed to the rubber plate 3, and therefore the first pad 8 made of stainless steel is arranged to effectively disperse the pressure transmitted by the upper support plate 1 and avoid the problem of local stress of the rubber plate 3. The anti-wear plate 9 can directly bear the frictional force between the upper support plate 1 and the rubber plate 3, avoid damage to the rubber plate 3 due to frequent friction, greatly prolong the service life of the rubber plate 3, ensure the stability and reliability of the support during long-term use, and improve the safety of the bridge structure. The anti-wear plate 9 is made of polytetrafluoroethylene plate, which can directly bear the frictional force between the upper support plate 1 and the rubber plate 3, avoid damage to the rubber plate 3 due to frequent friction, greatly prolong the service life of the rubber plate 3, ensure the stability and reliability of the support during long-term use, and improve the safety of the bridge structure.

[0033] As shown in Figure 1 and Figure 5 As shown, the lower support plate 2 and the upper support plate 1 are also provided with a laser ranging sensor 10, the side wall of the lower support plate 2 is provided with a vertical sliding groove 11, the side wall of the laser ranging sensor 10 is provided with a sliding block 12 matched with the sliding groove 11, and the laser ranging sensor 10 is fixedly connected with the side wall of the lower support plate 2 through the sliding groove 11. The laser ranging sensor 10 in the utility model is fixed through the sliding groove 11, so that the height can be adjusted conveniently, when the distance between the lower support plate 2 and the upper support plate 1 is large, in order to ensure the measurement accuracy, a limiting block can be inserted into the sliding groove 11 first, and then the laser ranging sensor 10 is inserted.

[0034] As shown in Figure 1 and Figure 6 As shown, the side wall upper surface of the lower support plate 2 is also provided with a data acquisition device 13, the data output ends of the pressure sensor 4 and the laser ranging sensor 10 are connected with the data receiving end of the data acquisition device 13 through cables, and the data output end of the data acquisition device 13 is connected with a data computer 14 through a transmission module. The pressure sensor 4 in the utility model comprises a probe 15, a steel ball 16 and an elastic unit 17 arranged in sequence from top to bottom and in the form of a plate, as shown in Figure 6As shown, the probe 15 and the top of the elastic unit 17 jointly hold the steel ball 16, and a plurality of strain gauges 18 are attached to the elastic element, and a plurality of groups are attached in the horizontal and vertical directions and constitute a full bridge. When the probe 15 is stressed, the steel ball 16 forms a point contact to concentrate the force on the elastic unit 17. After the elastic unit 17 is stressed, it will deform. At this time, the strain gauges 18 attached to the elastic unit 17 will also deform, so that the voltage signal transmitted by the strain gauges 18 changes.

[0035] The data output end of the laser ranging sensor 10 and the data receiving end of the data acquisition device 13 are connected by means of a cable. A cable passage is arranged in the fixing seat 5 for the cable to pass through. The data acquisition device 13 uses a commercially available single-chip microcomputer as a controller. The voltage signal transmitted by the strain gauges 18 is received by the single-chip microcomputer, converted into a pressure value through a preset program, and then transmitted to the data computer 14 through a transmission module connected to the single-chip microcomputer. The data is analyzed, processed and displayed by the data computer 14 to monitor the stress and bearing capacity of the bridge support. The power supply of the data acquisition device 13 can be a commercial power supply.

Claims

1. A load bearing and force monitoring plate type rubber bearing, comprising an upper bearing plate (1), a lower bearing plate (2) and a rubber plate (3) between the upper bearing plate (1) and the lower bearing plate (2), a pressure sensor (4) is arranged between the lower bearing plate (2) and the rubber plate (3), characterized in that, The lower support plate (2) is in a groove structure, and a fixing seat (5) is arranged in the groove of the lower support plate (2), wherein the fixing seat (5) is in a plate structure, and a fixing groove for placing the pressure sensor (4) is arranged on the surface of the fixing seat (5).

2. The load monitoring and bearing plate rubber bearing according to claim 1, wherein, The top surface of the pressure sensor (4) is flush with the top surface of the fixing seat (5), and the rubber plate (3) is in contact with the pressure sensor (4) through the opening side of the fixing groove.

3. The load monitoring and bearing plate rubber bearing according to claim 1, wherein, A plurality of groups of pressure sensors (4) are arranged on the fixing seat (5) in a circumferential array.

4. The load monitoring and bearing plate rubber bearing of claim 1, wherein, A sealing ring (6) in a ring shape is arranged at the gap between the inner wall of the lower support plate (2) and the side wall of the rubber plate (3), and a drainage hole (7) penetrating the side wall of the lower support plate (2) is arranged above the sealing ring (6).

5. The load monitoring and bearing plate rubber bearing according to claim 4, wherein, The drainage hole (7) is arranged in an inclined manner, the input end of the drainage hole (7) is higher than the output end of the drainage hole (7), the width of the input end of the drainage hole (7) in the vertical direction is greater than that of the output end of the drainage hole (7), and the lower surface of the input end of the drainage hole (7) is lower than the upper surface of the sealing ring (6).

6. The load monitoring and bearing plate rubber bearing of claim 1, wherein, The rubber plate (3) and the upper support plate (1) are provided with a pad (8) and an anti-abrasion plate (9), the upper surface of the pad (8) is in abutment with the lower surface of the upper support plate (1), the lower surface of the pad (8) is in abutment with the upper surface of the anti-abrasion plate (9), and the lower surface of the anti-abrasion plate (9) is in abutment with the rubber plate (3).

7. The load monitoring and bearing plate rubber bearing of claim 1, wherein, The lower support plate (2) and the upper support plate (1) are further provided with a laser ranging sensor (10), the side wall of the lower support plate (2) is provided with a sliding groove (11) in the vertical direction, the side wall of the laser ranging sensor (10) is provided with a sliding block (12) matched with the sliding groove (11), and the laser ranging sensor (10) is fixedly connected with the side wall of the lower support plate (2) through the sliding groove (11).

8. The load monitoring and bearing plate rubber bearing according to claim 7, wherein, The upper surface of the side wall of the lower support plate (2) is further provided with a data acquisition device (13), the data output ends of the pressure sensor (4) and the laser ranging sensor (10) are respectively connected with the data receiving end of the data acquisition device (13) through cables, and the data output end of the data acquisition device (13) is connected with a data computer (14) through a transmission module.

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