Multifunctional portable static load testing device

Abstract

The utility model provides a kind of multifunctional portable static load test device, the multifunctional portable static load test device includes fixed frame, counterforce frame, lap rod, force transmission rod, force element and counterforce block.The utility model provides a kind of multifunctional portable static load test device, by being provided with fixed frame, lap rod is installed in the top of fixed frame, the track board to be tested is placed on lap rod, force transmission rod is provided in the top of track board, multiple counterforce blocks are also freely placed between force transmission rod and track board, and the placement position of counterforce block is placed according to test standard.In the top of force transmission rod, multiple force elements are freely placed, and the driving end of force element is abutted on counterforce beam on counterforce frame, and force element can exert force to track board to simulate stress condition under train load action.The application can meet different test requirements by freely adjusting the position of counterforce block to ensure test effect.

Description

TECHNICAL FIELD

[0001] The utility model belongs to static load testing device technical field, concretely relates to a multifunctional portable static load testing device. BACKGROUND

[0002] With the continuous development of railway transportation, higher requirements are put forward for the safety, stability and durability of track structure. As an important part of railway track structure, the performance of track slab directly affects the stability, safety and comfort of train operation.

[0003] In order to ensure the reliability of track slab in actual use, static load test is needed to simulate the stress condition under the action of train load. Through static load test, the key performance indicators such as bearing capacity, deformation characteristics and crack development of track slab can be tested, which provides an important basis for the design, production and construction of track slab. At present, the track slab is usually placed under the counterforce beam during the experiment, and the hydraulic cylinder is installed on the counterforce beam. The train load is simulated by the downward force of the hydraulic cylinder, so as to complete the static load test. The stress point of the track slab is single by using this method, and it is not convenient to adjust the stress point of the track slab according to the test standard, which affects the test effect. UTILITY MODEL CONTENT

[0004] The utility model embodiment provides a kind of multifunctional portable static load testing device, to solve the problem that static load testing device in prior art is not convenient to carry out multipoint force test according to test standard in test process, and the stress point is fixed position, which affects test effect.

[0005] To achieve the above object, the technical scheme adopted by the utility model is as follows: a multifunctional portable static load testing device is provided, comprising:

[0006] The length direction of the fixed frame is defined as the first direction, and the width direction of the fixed frame is defined as the second direction.

[0007] The counterforce frame is installed on the fixed frame in multiple numbers along the first direction, and the counterforce frame comprises a counterforce beam installed above the fixed frame and a support beam fixedly installed at both ends of the counterforce beam.

[0008] The lap rod is installed on the top of the fixed frame and located in the middle of the fixed frame along the second direction, and the length direction of the lap rod is arranged along the first direction.

[0009] The two force transmission rods are arranged along the second direction.

[0010] The force applying member is fixed at the driving end between the force transmission rod and the counterforce beam.

[0011] The counterforce blocks are arranged along the length direction of the force transmission rod.

[0012] In a possible implementation, the force applying member is provided with a control end for controlling the working state of the force applying member.

[0013] In a possible implementation, the top end of the support beam is fixedly installed on the counterforce beam, and the bottom end of the support beam is detachably installed on the fixed frame.

[0014] In a possible implementation, the fixed frame comprises two longitudinal beams arranged in parallel along the second direction, and a plurality of cross beams are fixedly installed between the two longitudinal beams and arranged in parallel along the first direction.

[0015] In a possible implementation, a connecting plate is fixedly installed at the connection between the longitudinal beam and the cross beam, and the connecting plate is fixedly connected with the cross beam and the longitudinal beam.

[0016] In a possible implementation, the overlap rod is freely placed on the top of the fixed frame, and a clamping groove for installing the overlap rod is arranged at both ends of the fixed frame along the first direction.

[0017] In a possible implementation, two cylindrical bodies are fixedly installed at both ends of the fixed frame and arranged in parallel along the second direction, and the axis of the cylindrical body is arranged along the first direction.

[0018] In a possible implementation, the multifunctional portable static load testing device further comprises:

[0019] The support seats are arranged in parallel along the first direction, and are freely placed on the fixed frame and abut against the end of the cylindrical body.

[0020] Compared with the prior art, the scheme shown in the embodiment of the application has the fixed frame, the overlapping rod is arranged on the top of the fixed frame, the overlapping rod is located at the middle of the fixed frame along the width direction of the fixed frame, and the length direction of the overlapping rod is arranged along the length direction of the fixed frame. The track slab to be tested is placed on the overlapping rod, the force transmission rod is arranged on the top of the track slab, the number of the force transmission rods is two, and the two force transmission rods are located on the two sides of the overlapping rod along the second direction. A plurality of counterforce blocks are freely placed between the force transmission rod and the track slab, and the placement positions of the counterforce blocks are placed according to the test standard. A plurality of force applying members are freely placed on the top of the force transmission rod, the driving end of the force applying member abuts against the counterforce beam on the counterforce frame, and the force applying member can apply the acting force to the track slab to simulate the stress condition under the train load. The application can freely adjust the positions of the counterforce blocks to meet different test requirements, so as to ensure the test effect. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A structural schematic view of a multifunctional portable static load test device is provided in the embodiment of the application.

[0022] Figure 2 A connecting structure schematic view of a support beam and a fixed frame is provided in the embodiment of the application.

[0023] Figure 3 An installation structure schematic view of an overlapping rod is provided in the embodiment of the application.

[0024] Figure 4 A structural schematic view of another embodiment of the multifunctional portable static load test device is provided in the embodiment of the application.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1, fixed frame; 11, longitudinal beam; 12, cross beam; 13, connecting plate; 2, counterforce frame; 21, support beam; 22, counterforce beam; 3, overlapping rod; 4, force transmission rod; 5, force applying member; 51, force sensor; 6, counterforce block; 7, cylinder; 8, support seat; 81, retaining wall; 82, limiting column. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical schemes and beneficial effects to be solved by the application more clear and obvious, the application will be further described in detail in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application, and are not used to limit the application.

[0028] Please refer to Figures 1 to 3The utility model provides a multifunctional portable static load testing device, which comprises a fixing frame 1, a counterforce frame 2, a lap joint rod 3, a force transmission rod 4, a force applying member 5 and a counterforce block 6. The length direction of the fixing frame 1 is defined as the first direction, and the width direction of the fixing frame 1 is defined as the second direction. The counterforce frame 2 is installed on the fixing frame 1 in the first direction. The lap joint rod 3 is installed on the top of the fixing frame 1 and located in the middle of the fixing frame 1 in the second direction. The length direction of the lap joint rod 3 is arranged in the first direction. The top of the lap joint rod 3 is used for placing a track plate. The force transmission rod 4 is arranged in the second direction. The force applying member 5 is installed between the force transmission rod 4 and the counterforce frame 2. The counterforce block 6 is arranged in the length direction of the force transmission rod 4.

[0029] Compared with the prior art, the multifunctional portable static load testing device provided by the embodiment comprises a fixing frame 1. The lap joint rod 3 is installed on the top of the fixing frame 1 and located in the middle of the fixing frame 1 in the width direction of the fixing frame 1. The length direction of the lap joint rod 3 is arranged in the length direction of the fixing frame 1. The track plate to be tested is placed on the lap joint rod 3. The force transmission rod 4 is arranged on the top of the track plate. The number of the force transmission rod 4 is two. The two force transmission rods 4 are located on the two sides of the lap joint rod 3 in the second direction. The counterforce block 6 is freely placed between the force transmission rod 4 and the track plate. The placement position of the counterforce block 6 is determined according to the test standard. The force applying member 5 is freely placed on the top of the force transmission rod 4. The driving end of the force applying member 5 abuts against the counterforce beam 22 on the counterforce frame 2. The force applying member 5 can apply force to the track plate to simulate the stress condition under the train load. The position of the counterforce block 6 can be freely adjusted to meet different test requirements, thereby ensuring the test effect.

[0030] Specifically, in the embodiment, during the test, the track plate is placed on the lap joint rod 3. The counterforce block 6 is placed on the top of the track plate according to the test requirement. The force transmission rod 4 is lapped on the top of the plurality of counterforce blocks 6. The force applying member 5 is placed between the force transmission rod 4 and the counterforce beam 22. The working state of the force applying member 5 is controlled to apply force to the track plate.

[0031] In some embodiments, the force applying member 5 can adopt the structure as shown in Figure 1 Figure 1 ​The number of the force applying members 5 is multiple, each of the force applying members 5 is separately provided with a control end for controlling the working state of the force applying member 5, and a force sensor 51 is installed at the driving end of the force applying member 5. The force applying member 5 is a hydraulic cylinder, and the multiple hydraulic cylinders are uniformly distributed on the two force transmission rods 4. The inlet ends of the multiple hydraulic cylinders are provided with control valves, and the force sensor 51 is installed at the driving end of the hydraulic cylinder. The pressure value at each force applying member 5 is monitored by the force sensor 51, the jacking pressure of the single hydraulic cylinder is controlled by the control valve, and when the pressure is applied on site, the pressure of the multiple force applying members 5 can be adjusted in sequence, so that the stress of each stress point of the track slab can be balanced.

[0032] In some embodiments, the support beam 21 can adopt the structure as shown in Figure 1 . Referring to Figure 1 , the top end of the support beam 21 is fixedly installed on the counterforce beam 22, and the bottom end of the support beam 21 is detachably installed on the fixed frame 1. The support beam 21 and the counterforce beam 22 are both processed from I-shaped steel, the length direction of the support beam 21 is arranged along the vertical direction, and the length direction of the counterforce beam 22 is arranged along the second direction. The bottom end of the support beam 21 is detachably installed on the fixed frame 1, and the corresponding counterforce frame 2 can be installed on the fixed frame 1 according to the length of the track slab to be tested. At the same time, when the track slab is placed, the multiple counterforce frames 2 can also be detached from the fixed frame 1, and after the track slab is hoisted and placed above the fixed frame 1, the counterforce frame 2 is fixed to the fixed frame 1 for pressure testing. The structure is simple, and the track slab is convenient to place on the fixed frame 1.

[0033] In some embodiments, the fixed frame 1 can adopt the structure as shown in Figure 1 . Referring to Figure 1 , the fixed frame 1 comprises two longitudinal beams 11 which are spaced apart and arranged in parallel along the second direction, and multiple cross beams 12 are fixedly installed between the two longitudinal beams 11, and the multiple cross beams 12 are spaced apart and arranged in parallel along the first direction. The cross beam 12 is fixedly installed at the two ends of the two longitudinal beams 11, and the two ends of the multiple cross beams 12 are respectively fixedly connected to the two longitudinal beams 11. The cross beam 12 and the longitudinal beam 11 are both processed from I-shaped steel, and the two ends of the cross beam 12 extend to the rib plates of the two longitudinal beams 11 and are fixedly connected to the longitudinal beams 11 by welding. The longitudinal beams 11 and the multiple cross beams 12 can improve the overall strength of the fixed frame 1 and ensure the stress strength of the fixed frame 1.

[0034] Preferably, in the embodiment, the top surfaces of the cross beams 12 and the longitudinal beams 11 are located on the same plane, and when the lap rod 3 is placed on the fixed frame 1, the lap rod 3 is lapped on the top surfaces of the multiple cross beams 12.

[0035] In some embodiments, the fixed frame 1 can adopt the structure as shown in Figure 1 , Figure 2 . Referring to Figure 1、 Figure 2 The connecting plate 13 is fixedly installed at the connecting position of the longitudinal beam 11 and the cross beam 12, and is fixedly connected with the cross beam 12 and the longitudinal beam 11. The support beam 21 is detachably installed on the connecting plate 13. The connecting plate 13 is fixedly installed at the connecting position of the longitudinal beam 11 and the cross beam 12. The connecting plate 13 is fixedly connected with the cross beam 12 and the longitudinal beam 11 by welding. The connecting plate 13 extends outward from the longitudinal beam 11 and the cross beam 12. The flange plate corresponding to the connecting plate 13 is fixedly installed at the end of the support wheel. The bolt through hole is arranged on the connecting plate 13 and the flange plate. The connecting plate 13 and the flange plate are connected together by the bolt and the nut, so as to realize the connection between the support beam 21 and the fixing frame 1, and facilitate the adjustment of the number of counterforce frames 2 according to the size of the track plate on site.

[0036] In some embodiments, the lap joint rod 3 can adopt the structure as shown in Figure 1 、 Figure 3 . See Figure 1 、 Figure 3 The lap joint rod 3 is freely placed on the top of the fixing frame 1. The fixing frame 1 is provided with a clamping groove for installing the lap joint rod 3 at both ends in the first direction. The lap joint rod 3 is freely placed on the top of the fixing frame 1, which facilitates the placement and installation of the lap joint rod 3. The lap joint rod 3 is a product processed by a square tube. The fixing frame 1 is provided with a clamping groove for placing the lap joint rod 3 at both ends on the top. The position of the lap joint rod 3 can be limited by the clamping groove. Thus, the lap joint rod 3 can be placed on the top of the fixing frame 1. The middle part of the track plate is lap jointed to the lap joint rod 3, and the force applying element 5 is used to pressurize the two side edges of the track plate to simulate the stress state of the track plate.

[0037] In some embodiments, the fixing frame 1 can adopt the structure as shown in Figure 1 、 Figure 3 . See Figure 1 、 Figure 3 Two cylindrical bodies 7 are fixedly installed at both ends of the fixing frame 1. The axis of the cylindrical body 7 is arranged in the first direction, and the two cylindrical bodies 7 are arranged in parallel and spaced apart in the second direction to form a clamping groove. Two cylindrical bodies 7 are fixedly installed at the end of the fixing frame 1. The axis of the cylindrical body 7 is arranged in the first direction, and the two cylindrical bodies 7 are arranged in parallel and spaced apart in the second direction. The two cylindrical bodies 7 can form a clamping groove for installing the lap joint rod 3. The outer side of the cylindrical body 7 can guide the placement of the lap joint rod 3. At the same time, the contact area between the lap joint rod 3 and the inner wall of the clamping groove can be reduced, which facilitates the pushing of the lap joint rod 3 to the fixing frame 1.

[0038] In some embodiments, the multifunctional portable static load test device can adopt the structure as shown in Figure 4 . See Figure 4The multifunctional portable static load testing device further comprises two support seats 8. The two support seats 8 are arranged in parallel along the first direction and are freely placed on the fixed frame 1 and can abut against the end of the cylinder 7. The top of the support seat 8 is fixedly installed with a retaining wall 81. The retaining wall 81 is fixedly installed with a limiting column 82 on the side close to the other support seat 8. The limiting column 82 is arranged in parallel with the retaining wall 81. The side of the retaining wall 81 close to the limiting column 82 is an inclined surface. The two support seats 8 are freely placed on the top of the fixed frame 1. When the two support seats 8 are placed on the fixed frame 1, the two support seats 8 abut against the cylinders 7 at the two ends of the fixed frame 1 respectively. Thus, the position of the support seat 8 is limited. The top of the support seat 8 is fixedly installed with the retaining wall 81. The side of the retaining wall 81 opposite to the other support seat 8 is an inclined surface. The spacing between the two inclined surfaces gradually increases from bottom to top. The limiting column 82 is further fixedly installed on the side of the retaining wall 81. The limiting column 82 and the retaining wall 81 form a support position for placing the end surface of the segment. In the application, the counterforce frames 2 at the two ends of the fixed frame 1 can be disassembled. Only the middle counterforce frame 2 is left. The support seat 8 is used to replace the lap joint rod 3. Thus, the segment can be subjected to the static load test. The static load test can be applied to different products.

[0039] Optionally, in the embodiment, the middle two counterforce frames 2 are left on the fixed frame 1. A section of I-shaped steel is lap jointed on the bottom of the counterforce beam 22 of the two counterforce frames 2. The force applying member 5 is placed between the I-shaped steel and the segment. The segment is subjected to the load test.

[0040] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A multifunctional portable static load testing device, characterized in that, The utility model relates to a multifunctional portable static load testing device, including: Fixed frame (1) defines the length direction of fixed frame (1) as first direction, the width direction of fixed frame (1) is second direction; Counterforce frame (2) is multiple, multiple counterforce frame (2) is installed on fixed frame (1) along first direction spacing, counterforce frame (2) includes the counterforce beam (22) installed above fixed frame (1) and the support beam (21) fixedly installed at both ends of counterforce beam (22), support beam (21) is installed on fixed frame (1); Lap rod (3) is installed on the top of fixed frame (1) and is located in the middle of fixed frame (1) along second direction, the length direction of lap rod (3) is along first direction setting, the top of lap rod (3) is used to place track board; Force bar (4) is two, two force bar (4) is spaced apart along second direction; Force applying member (5) fixed end and driving end are installed between force bar (4) and counterforce beam (22) respectively; Counterforce block (6) is multiple, multiple counterforce block (6) is spaced apart along the length direction of force bar (4).

2. The multi-functional portable static load testing device of claim 1, wherein, The number of force applying member (5) is multiple, and the control end for controlling the working state of the force applying member (5) is separately provided for each of the plurality of force applying members (5), and a force sensor (51) is installed at the driving end of the force applying member (5).

3. The multi-functional portable static load testing device of claim 1, wherein, The top end of the support beam (21) is fixedly installed on the counterforce beam (22), and the bottom end of the support beam (21) is detachably installed on the fixed frame (1).

4. The multi-functional portable static load testing device of claim 3, wherein, The fixed frame (1) includes two longitudinal beams (11) spaced apart and arranged in parallel along the second direction, and a plurality of cross beams (12) are fixedly installed between the two longitudinal beams (11), and the plurality of cross beams (12) are spaced apart and arranged in parallel along the first direction.

5. The multi-functional portable static load testing device of claim 4, wherein, A connecting plate (13) is further fixedly installed at the connection between the longitudinal beam (11) and the cross beam (12), the connecting plate (13) is fixedly connected with the cross beam (12) and the longitudinal beam (11), and the support beam (21) is detachably installed on the connecting plate (13).

6. The multi-functional portable static load testing device of claim 3, wherein, The lap rod (3) is freely placed on the top of the fixed frame (1), and a clamping groove for installing the lap rod (3) is arranged at both ends of the fixed frame (1) along the first direction.

7. The multi-functional portable static load testing device of claim 6, wherein, Both ends of the fixed frame (1) are fixedly installed with two cylindrical bodies (7) spaced apart and arranged in parallel, the axis of the cylindrical body (7) is arranged along the first direction, and the two cylindrical bodies (7) are spaced apart along the second direction to form the clamping groove.

8. The multi-functional portable static load testing device of claim 7, wherein, The multifunctional portable static load testing device further comprises: Supporting seats (8), two in number, are arranged in parallel along a first direction and are freely placed on the fixed frame (1) and can abut against the end of the cylinder (7), the top of the supporting seat (8) is fixedly installed with a retaining wall (81), the retaining wall (81) is fixedly installed with a limiting column (82) on the side close to the other supporting seat (8), the limiting column (82) is arranged in parallel with the retaining wall (81) and the side close to the limiting column (82) of the retaining wall (81) is an inclined surface.

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