Concrete sleeper static load test device

Abstract

The utility model discloses a concrete sleeper static load test device, which relates to the technical field of concrete member detection equipment and comprises a track, a carrier loader, a pressurizing assembly and a balancing assembly. The two rails are arranged in parallel. The carrier loader is connected to the track in a pressing mode. The pressurizing assembly comprises an upper clamping structure and a lower clamping structure which are connected through a column body; the balance assembly comprises a stand column, a jacking rod and an inhaul cable. One end of the inhaul cable is connected with the jacking rod, and the other end of the inhaul cable is connected with the lower clamping structure; the lower clamping structure can pull the jacking rod to move upwards so as to support the sleeper. When the compression joint position of the pressurizing assembly is located at the end of the sleeper in a static load test, the lower pressing block and the base plate support the two ends of the bottom face of the sleeper respectively, so that balance of the sleeper is guaranteed, unbalance slipping of the sleeper is avoided, and test safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete member detection equipment technical field, concretely relates to a concrete sleeper static load testing device. BACKGROUND

[0002] The sleeper is a kind of railway fittings, for supporting rail, commonly adopts reinforced concrete structure.

[0003] After sleeper production is completed, static load test needs to be carried out to detect its compressive strength;After detection is qualified, it is stored or transported to construction site.

[0004] Sleeper is usually strip-shaped and has greater length-diameter ratio, so static load test needs to be carried out by respectively pressing middle part and two ends to avoid blind area detection. In traditional technology, static load is usually applied by the form of clamping on upper and lower sides;When clamping position is located at one end of sleeper, the other end of sleeper is in suspended state, then sleeper is easy to lose balance and has the risk of rotating around clamping position and then slipping off test table. SUMMARY

[0005] In order to overcome the problem of "easily leading to sleeper imbalance when static load is applied to sleeper end" in the above background technology, the utility model provides a concrete sleeper static load testing device.

[0006] The technical scheme adopted by the utility model to solve the above technical problem is:

[0007] A kind of concrete sleeper static load testing device, it includes track, carrier, pressurizing component and balancing component;The track is transversely arranged;The track is provided with two and is arranged parallel to each other;The carrier is crimped on the track and can reciprocate along the length direction of the track;The pressurizing component includes upper clamping structure and lower clamping structure connected by column body;The balancing component includes stand, jacks in the inner cavity of the stand and longitudinally sliding connection top lifting rod and with the top lifting rod connection cable;The cable one end is connected with the top lifting rod, the other end is connected with the lower clamping structure;The lower clamping structure can pull the top lifting rod upward when clamping sleeper to support the sleeper.

[0008] As a further optimization scheme of the utility model, the upper clamping structure includes upper seat body, hydraulic cylinder is installed in the upper seat body, and the output shaft bottom end of the hydraulic cylinder is installed with upper pressing block.

[0009] As a further optimization scheme of the utility model, the lower clamping structure includes lower seat body, jacking seat and receiving table, the jacking seat bottom end is connected with lower seat body, top end is connected with the receiving table;The receiving table top surface is installed with lower pressing block that is adapted to the upper pressing block.

[0010] As a further optimization scheme of the utility model, the balance assembly further includes a first pulley and a second pulley; the first pulley is connected with the lower seat body, and the second pulley is connected with the outer wall of the stand; the inhaul cable is respectively crimped with the first pulley and the second pulley and is bent to be N-shaped; the end of the inhaul cable away from the stand is connected with the jacking seat.

[0011] As a further optimization scheme of the utility model, the stand side wall is provided with a vertically arranged strip-shaped hole; the jacking rod includes a rod body and an extension rod, the rod body is vertically arranged and is inserted and arranged in the inner cavity of the stand, and the extension rod is transversely arranged and is fixedly connected with the rod body perpendicularly; the extension rod is inserted and arranged in the strip-shaped hole and can reciprocate along the length direction of the strip-shaped hole; one end of the inhaul cable away from the jacking seat is connected with the extension rod.

[0012] As a further optimization scheme of the utility model, the second pulley is located above the strip-shaped hole; the height of the first pulley is lower than the height of the second pulley.

[0013] As a further optimization scheme of the utility model, the inhaul cable includes a first tensioning part, a second tensioning part and a third tensioning part connected in sequence; the first tensioning part is arranged in parallel with the second tensioning part.

[0014] As a further optimization scheme of the utility model, the top end of the rod body is provided with a backing plate.

[0015] As a further optimization scheme of the utility model, the carrier vehicle includes a carrier cross beam, a carrier longitudinal beam and an adjusting plate; the carrier cross beam is provided with two and is arranged in parallel with each other; the two ends of the carrier longitudinal beam are respectively connected with the two carrier cross beams; the bottom of the carrier cross beam is provided with a first wheel body, and the first wheel body is rollingly connected with the track; the adjusting plate is arranged above the carrier longitudinal beam and can slide along the length direction of the carrier longitudinal beam.

[0016] As a further optimization scheme of the utility model, further including a test room for realizing space separation with a production workshop, the test room is provided with a wall, and the wall is provided with a window; the track is inserted and arranged in the window; the pressurizing assembly and the balance assembly are arranged in the test room.

[0017] In summary, the utility model has at least one of the following advantages:

[0018] (1) The utility model utilizes the track and the carrier vehicle to conveniently convey the strip-shaped sleeper between the upper clamping structure and the lower clamping structure, is convenient to operate, and is reliable in function; when the crimping position of the pressurizing assembly in the static load test is located at the end of the sleeper, the lower pressing block and the backing plate support the two ends of the bottom surface of the sleeper respectively, so that the balance of the sleeper is ensured, the sleeper is prevented from slipping off due to imbalance, and the test safety is improved.

[0019] (2) the cable includes sequentially connected first tensioning part, second tensioning part and third tensioning part;The first tensioning part is arranged in parallel with the second tensioning part;The lifting speed of the receiving table is equal to the lifting speed of the jacking rod, so that the lower pressing block and the base plate can be guaranteed to contact and support the sleeper at the same time, and the eccentric load is avoided.

[0020] (3) the test room is used for isolating the dust in the production workshop, to avoid damage to the hydraulic cylinder;The test room is provided with a wall, and the wall is provided with a window;The track is inserted into the window, so that the carrier and the sleeper can be conveyed back and forth between the test room and the production workshop.

[0021] (4) the user pushes the carrier and the sleeper to move between the upper clamping structure and the lower clamping structure, then pushes the limiting structure upward, so that the magnetic plate is adsorbed on the bottom surface of the carrying beam, the limiting structure can exert a transverse limiting force on the carrier by friction, to avoid the carrier from accidentally driving away from below the upper clamping structure, thereby improving the test safety and convenience. BRIEF DESCRIPTION OF DRAWINGS

[0022] The application will be further described below in conjunction with the drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the top view structure of the carrier;

[0025] Figure 3 It is a schematic diagram of the left view structure of the carrier and the track in the pressed state;

[0026] Figure 4 It is a schematic diagram of the vertical section structure of the adjusting plate and the carrying longitudinal beam;

[0027] Figure 5 It is a schematic diagram of the structure of the upper clamping structure and the lower clamping structure;

[0028] Figure 6 It is a schematic diagram of the position relationship between the column and the track from the top view;

[0029] Figure 7 It is a schematic diagram of the balance assembly structure;

[0030] Figure 8 It is a schematic diagram of the connection structure of the receiving table, the cable and the jacking rod;

[0031] Figure 9 It is a schematic diagram of the cable in the N-shaped bending state;

[0032] Figure 10 It is a schematic diagram of the connection structure of the column and the jacking rod;

[0033] Figure 11 Fig. 2 is a schematic view of the state of the two ends of the sleeper supported by the base plate and the pressing block respectively;

[0034] Figure 12 Fig. 3 is a schematic view of the left side of the installation position and structure of the reinforcing cross bar;

[0035] Figure 13 Fig. 4 is a schematic view of the left side of the installation position and structure of the limiting structure;

[0036] Figure 14 Fig. 5 is a schematic view of the structure of the limiting structure.

[0037] Explanation of reference signs:

[0038] In the drawings,

[0039] 1. track; 10. first gap; 11. leg;

[0040] 2. carrier vehicle; 21. carrier cross beam; 211. first wheel body; 22. carrier longitudinal beam; 23. adjusting plate; 230. second gap; 231. second wheel body;

[0041] 3. pressing assembly; 31. upper clamping structure; 311. upper seat body; 312. output shaft; 313. upper pressing block; 32. lower clamping structure; 321. lower seat body; 322. jacking seat; 323. receiving table; 324. lower pressing block; 33. column body; 331. clamp;

[0042] 4. balancing assembly; 41. stand column; 411. strip-shaped hole; 412. reinforcing cross bar; 4121. accommodating hole; 413. limiting structure; 4131. insertion column; 4132. first plate body; 4133. second plate body; 4134. magnetic attraction plate; 4135. pull ring; 42. jacking rod; 421. rod body; 422. extension rod; 423. base plate; 43. first pulley; 44. second pulley; 45. inhaul cable; 451. first tensioning part; 452. second tensioning part; 453. third tensioning part;

[0043] 5. sleeper;

[0044] 6. test house; 61. wall; 611. window. DETAILED DESCRIPTION

[0045] According to the above structural features of the present application, the embodiments of the present application are further described as follows:

[0046] Reference Figure 1 and Figure 5The embodiment provides a concrete sleeper static load test device, which comprises a track 1, a carrier vehicle 2, a pressurizing assembly 3 and a balancing assembly 4. The pressurizing assembly 3 comprises an upper clamping structure 31 and a lower clamping structure 32 which are connected through a column body 33. The track 1 is used for supporting the carrier vehicle 2, the carrier vehicle 2 is used for supporting and moving a sleeper 5, and the carrier vehicle 2 carrying the sleeper 5 can conveniently enter or exit a narrow gap between the upper clamping structure 31 and the lower clamping structure 32, thereby improving the convenience of feeding and discharging and avoiding the inconvenience of using a crown block or a travelling block to hoist the sleeper 5 into the narrow gap in the prior art.

[0047] With reference to Figures 1-3 The track 1 is horizontally arranged; the track 1 is installed on the ground through supporting legs 11 so as to keep the horizontal arrangement. The top end of the supporting leg 11 is fixedly connected with the track 1 through bolts, and the bottom end is fixedly connected with the ground through bolts. The track 1 is provided with two tracks which are arranged in parallel with each other; the carrier vehicle 2 is pressed on the track 1 and can reciprocally slide along the length direction of the track 1. A user uses a hoisting tool (for example, a forklift, a crown block, a travelling block or the like) to place the sleeper 5 on the carrier vehicle 2, and then manually pushes the carrier vehicle 2 and the sleeper 5 to move horizontally to the gap between the upper clamping structure 31 and the lower clamping structure 32.

[0048] With reference to Figures 1-4 The carrier vehicle 2 is horizontally arranged. The carrier vehicle 2 comprises a carrying cross beam 21, a carrying longitudinal beam 22 and an adjusting plate 23. The carrying cross beam 21 is provided with two beams which are arranged in parallel with each other; the two ends of the carrying longitudinal beam 22 are fixedly connected with the two carrying cross beams 21 (for example, fixedly connected through bolts or fixedly connected through welding); the carrying longitudinal beam 22 is provided with a plurality of beams which are arranged in parallel with each other; the carrying longitudinal beam 22 is arranged between the two carrying cross beams 21; the carrying longitudinal beam 22 plays a connecting role for the two carrying cross beams 21; the carrying cross beam 21 and the carrying longitudinal beam 22 are connected in a "ladder" shape. The bottom of the carrying cross beam 21 is provided with a first wheel body 211 which can rotate, the first wheel body 211 is clamped and pressed on the track 1, and the first wheel body 211 is in rolling connection with the track 1; the adjusting plate 23 is arranged above the carrying longitudinal beam 22 and can slide along the length direction of the carrying longitudinal beam 22. Since it is difficult for a user to accurately place the sleeper 5 in the middle position of the carrier vehicle 2, after the sleeper 5 is stably placed on the adjusting plate 23, the sleeper 5 is pushed to move along the length direction of the carrying longitudinal beam 22 together with the adjusting plate 23, until the center surface of the sleeper 5 is aligned with the center surface of the pressurizing assembly 3, so that the pressurizing assembly 3 can stably press the sleeper 5.

[0049] With reference to Figures 2-4 The second wheel body 231 or a bearing is arranged on the upper part of the carrying longitudinal beam 22, and the top end of the second wheel body 231 / the top end of the bearing is higher than the top surface of the carrying longitudinal beam 22, so that the adjusting plate 23 does not come into contact and friction with the top surface of the carrying longitudinal beam 22 when sliding, thereby guaranteeing the smoothness of the sliding of the adjusting plate 23.

[0050] With reference to Figure 5 The upper clamping structure 31 comprises an upper seat body 311, a hydraulic cylinder is mounted in the upper seat body 311, and an output shaft 312 of the hydraulic cylinder is provided with an upper pressing block 313 at the bottom end. The upper seat body 311 is fixedly connected with the top end of the column body 33 through bolts; the outer shell of the hydraulic cylinder is fixedly connected with the upper seat body 311 through bolts, the output shaft 312 of the hydraulic cylinder is directed downward, and the lower end of the output shaft 312 is fixedly connected with the upper pressing block 313 through bolts; when the output shaft 312 of the hydraulic cylinder is elongated, the upper pressing block 313 is pressed against the top surface of the sleeper 5, so that static pressure is applied.

[0051] With reference to Figure 5 The lower clamping structure 32 comprises a lower seat body 321, a jacking seat 322 and a receiving table 323, the jacking seat 322 is connected with the lower seat body 321 at the bottom end and connected with the receiving table 323 at the top end; the receiving table 323 is provided with a lower pressing block 324 matched with the upper pressing block 313 on the top surface. The lower seat body 321 is placed on the ground and fastened with the ground through bolts; the jacking seat 322 is provided with a hydraulic cylinder, the outer shell of the hydraulic cylinder is fixedly connected with the outer shell of the jacking seat 322, the outer shell of the jacking seat 322 is fixedly connected with the top surface of the lower seat body 321 through bolts, and the output shaft 312 of the hydraulic cylinder is fixedly connected with the bottom surface of the receiving table 323 through bolts. The jacking seat 322 can drive the receiving table 323 and the lower pressing block 324 to move up and down; when the lower pressing block 324 moves up to be in close contact with the bottom surface of the sleeper 5, the lower pressing block 324 can apply a supporting force to the sleeper 5. The lower pressing block 324 is fixedly installed on the top surface of the receiving table 323 through bolts.

[0052] With reference to Figure 5 The upper pressing block 313 is provided with three upper pressing blocks 313, the bottom surfaces of the three upper pressing blocks 313 are all equal in height, so that the three upper pressing blocks 313 are all in contact with the sleeper 5; the lower pressing block 324 is provided with three lower pressing blocks 324, the top surfaces of the three lower pressing blocks 324 are all equal in height, so that the three lower pressing blocks 324 are all in contact with the sleeper 5. The three upper pressing blocks 313 and the three lower pressing blocks 324 are correspondingly arranged, so that shear force is avoided to be applied to the sleeper 5.

[0053] With reference to Figure 6 The column body 33 is provided with four column bodies 33 and is arranged in pairs; the column body 33 and the adjacent track 1 are fixedly connected through a hoop 331 and bolts, so that the structural stability of the utility model is increased. The column body 33 is arranged on the outer side of the track 1, so that the column body 33 does not hinder the sliding of the carrying vehicle 2 and the sleeper 5, and realizes yielding.

[0054] With reference to Figure 7The balancing assembly 4 includes a column 41, a lifting rod 42 inserted into the inner cavity of the column 41 and slidably connected longitudinally, and a cable 45. The column 41 is a hollow cylindrical shape with an open top; the top of the lifting rod 42 extends from the top opening of the column 41, thus ensuring that the lifting rod 42 can smoothly extend from the inner cavity of the column 41. One end of the cable 45 is connected to the lifting rod 42, and the other end is connected to the lower clamping structure 32; when clamping the sleeper 5, the lower clamping structure 32 can pull the lifting rod 42 upward to support the sleeper 5.

[0055] Reference Figure 7 and Figure 8 The balancing assembly 4 also includes a first pulley 43 and a second pulley 44. The first pulley 43 is mounted on the upper surface of the lower base 321 via a pivot and a bearing, and the second pulley 44 is mounted on the outer wall of the column 41 via a pivot and a bearing. The axes of the first pulley 43 and the second pulley 44 are parallel to each other. The cable 45 is pressed against the first pulley 43 and the second pulley 44 respectively and bent into an N-shape; the end of the cable 45 away from the column 41 is connected to the lifting base 322. The first pulley 43 has a first annular groove in the middle of its circumferential surface, and the second pulley 44 has a second annular groove in the middle of its circumferential surface. The bent portion of the cable 45 is pressed into the first annular groove and the second annular groove respectively.

[0056] Reference Figure 10 The column 41 has a vertically positioned strip-shaped hole 411 on its side wall, which is a through hole. The lifting rod 42 includes a rod body 421 and an extension rod 422. The rod body 421 is vertically positioned and inserted into the inner cavity of the column 41. The extension rod 422 is horizontally positioned and vertically fixed to the rod body 421 (e.g., by bolts or by an integral fixing connection). The extension rod 422 is inserted into the strip-shaped hole 411 and can slide back and forth along the length of the strip-shaped hole 411. The end of the cable 45 away from the lifting seat 322 is connected to the extension rod 422. The bottom end of the column 41 is provided with a sealing plate, which is used to seal the bottom opening of the inner cavity of the column 41. A tension spring is installed inside the column 41, positioned below the rod 421. The top of the tension spring is inserted into the first insertion hole at the bottom of the rod 421. A vertically mounted hanging plate is located in the middle of the upper surface of the sealing plate. The hanging plate is vertically welded to the sealing plate, and the bottom of the tension spring is inserted into the second insertion hole on the hanging plate. The tension spring is used to pull the lifting rod 42 downward to reset. The tension spring is located at the bottom of the inner cavity of the column 41. The sealing plate is fixedly connected to the column 41 (e.g., by bolts or by welding); the sealing plate is pressed onto the ground and fixedly connected to the ground by bolts.

[0057] Reference Figure 10 A pad 423 is fixedly installed at the top of the rod 421 by bolts. The pad 423 is used to increase the contact area with the sleeper 5, thereby increasing the support stability.

[0058] Reference Figure 5 ,Figures 8-10 The second pulley 44 is located above the strip-shaped hole 411; the height of the first pulley 43 is lower than the height of the second pulley 44. The cable 45 comprises a first tensioning part 451, a second tensioning part 452 and a third tensioning part 453 connected in sequence; the first tensioning part 451 is arranged in parallel with the second tensioning part 452; the lifting speed of the receiving table 323 is equal to the lifting speed of the jacking rod 42, so that the pressing block 324 and the pad 423 can simultaneously contact and support the sleeper 5.

[0059] With reference to Figure 11 When the pressing position of the pressing assembly 3 is located at the end of the sleeper 5 in the static load test, the pressing block 324 and the pad 423 support the two ends of the bottom surface of the sleeper 5 respectively, and lift the sleeper 5 upward so as to separate the sleeper 5 from the carrier vehicle 2 (avoiding the first wheel body 211 and the second wheel body 231 of the carrier vehicle 2 being damaged by pressure), thereby ensuring the balance of the sleeper 5 and avoiding the sleeper 5 from slipping off due to imbalance.

[0060] With reference to Figure 5 And Figure 7 Each of the two sides of the pressing assembly 3 is provided with a balancing assembly 4. When the static load is applied to the left end of the sleeper 5, the lower clamping structure 32 and the balancing assembly 4 on the right side support the two ends of the bottom surface of the sleeper 5 respectively, and the balancing assembly 4 on the left side is in an idle state; when the static load is applied to the right end of the sleeper 5, the lower clamping structure 32 and the balancing assembly 4 on the left side support the two ends of the bottom surface of the sleeper 5 respectively, and the balancing assembly 4 on the right side is in an idle state.

[0061] When the pressing position of the pressing assembly 3 is located at the middle of the sleeper 5 in the static load test, the left and right sides of the sleeper 5 are balanced in weight, and the pressing assembly 3 adopts three upper pressing blocks 313 and three lower pressing blocks 324 to clamp the sleeper 5 at the same time, which is sufficient to maintain the balance of the sleeper 5; at this time, both of the balancing assemblies 4 are in an idle state.

[0062] With reference to Figure 2 The first gap 10 is arranged between the two rails 1, and the second gap 230 is arranged between the adjacent carrier longitudinal beams 22; the pressing block 324 can pass through the first gap 10 and the second gap 230 to contact the bottom surface of the sleeper 5, thereby realizing the yielding to the rails 1 and the carrier vehicle 2; the pad 423 can pass through the first gap 10 and the second gap 230 to contact the bottom surface of the sleeper 5, thereby realizing the yielding to the rails 1 and the carrier vehicle 2.

[0063] With reference to Figure 1The utility model also includes the test room 6 for realizing space separation with production plant. The test room 6 is arranged side by side with production plant or is arranged in the inside of production plant, thereby isolating the dust raising in production plant, avoids the damage of dust raising to hydraulic cylinder. The test room 6 is equipped with wall 61 (for example glass frame type wall 61 or concrete wall 61), and the wall 61 is equipped with window 611;Rail 1 is inserted and connected in the window 611, makes one end of rail 1 to be placed in the processing plant, and the other end is placed in the test room 6. Pressurizing assembly 3 and balancing assembly 4 are placed in the test room 6. The user pushes the carrier 2 along the rail 1 and slides to the production plant, then places the sleeper 5 on the carrier 2, then pushes the carrier 2 and sleeper 5 and slides to the pressurizing assembly 3 position in the test room 6 and carries out static load test;After the test, push the carrier 2 and sleeper 5 and slide to the production plant and unload.

[0064] Referring to Figure 4 The cross section of the adjusting plate 23 is in the shape of n and is buckled on the top surface of the carrying longitudinal beam 22 to block the top end opening of the carrying longitudinal beam 22, so that the dust does not enter the inner cavity of the carrying longitudinal beam 22 to damage the second wheel body 231 / bearing, and the sliding smoothness of the adjusting plate 23 is ensured.

[0065] Referring to Figure 12 The top end of the stand 41 is provided with a reinforcing cross bar 412, which is transversely arranged and perpendicular to the rail 1. The two ends of the reinforcing cross bar 412 are respectively connected with the side wall of the stand 41 and the side wall of the rail 1 (for example, by welding or by bolt connection), so as to strengthen the stability of the stand 41 and avoid the inclination of the stand 41. The reinforcing cross bar 412 is connected with the bottom of the side wall of the rail 1, so as to realize the accommodation with the first wheel body 211.

[0066] Referring to Figure 13 And Figure 14, the cross section of the carrying cross beam 21 is in the shape of 7; the end of the reinforcing cross rod 412 is provided with a vertical accommodating hole 4121 which is located directly below the bottom surface of the carrying cross beam 21. A limiting structure 413 is inserted into the accommodating hole 4121, and the limiting structure 413 can slide longitudinally in the accommodating hole 4121. The limiting structure 413 comprises an insertion column 4131, a first plate body 4132, a second plate body 4133 and a magnetic plate 4134; the insertion column 4131 is vertically inserted into the accommodating hole 4121. The insertion column 4131 is in clearance fit with the accommodating hole 4121, so that the insertion column 4131 can slide longitudinally in the accommodating hole 4121. The first plate body 4132 is horizontally fixedly installed at the top end of the insertion column 4131 (for example, by screwing), and the second plate body 4133 is horizontally fixedly installed at the bottom end of the insertion column 4131 (for example, by screwing). The insertion column 4131, the first plate body 4132 and the second plate body 4133 are arranged in the shape of I. The first plate body 4132 is located above the reinforcing cross rod 412, and the second plate body 4133 is located below the reinforcing cross rod 412. The magnetic plate 4134 is fixedly installed on the top surface of the first plate body 4132 (for example, by screwing), and the magnetic plate 4134 is located directly below the bottom surface of the carrying cross beam 21. A pull ring 4135 in the shape of U or V is fixedly installed on the bottom surface of the second plate body 4133. The user pushes the carrying vehicle 2 and the sleeper 5 to move between the upper clamping structure 31 and the lower clamping structure 32, and then pushes the limiting structure 413 upward, so that the magnetic plate 4134 is adsorbed on the bottom surface of the carrying cross beam 21 (the limiting structure 413 applies a transverse limiting force on the carrying vehicle 2); then the sleeper 5 is jacked up to be separated from the carrying vehicle 2, so that the carrying vehicle 2 cannot slide transversely when the static load test is performed, and then the sleeper 5 can be directly placed on the carrying vehicle 2 after the test is completed. The problem that the carrying vehicle 2 automatically slides to be away from the sleeper 5 due to the inclination of the track 1 in the prior art is avoided. Compared with the prior art, the carrying vehicle 2 does not need to be pulled back to the original position, and the convenience is excellent. The sleeper 5 can be stably placed on the carrying vehicle 2, so that the sleeper 5 cannot be accidentally dropped, and the safety is sufficient. After the sleeper 5 is placed on the carrying vehicle 2, the user pulls down the limiting structure 413 by grabbing the pull ring 4135, so that the magnetic plate 4134 is separated from the carrying cross beam 21, and then the carrying vehicle 2 and the sleeper 5 can be smoothly driven out of the test room.

[0067] The carrying cross beam 21 is made of ferrous metal material (for example, 45 steel), and the magnetic plate 4134 is made of permanent magnetic material (for example, aluminum-nickel-cobalt permanent magnetic alloy, iron-chromium-cobalt permanent magnetic alloy, permanent ferrite, etc.), so that the adsorption capacity is ensured. The first plate body 4132 is made of magnetic conductive material (for example, 45 steel), and when the carrying vehicle 2 needs to be moved, the bottom surface of the first plate body 4132 is adsorbed on the top surface of the reinforcing cross rod 412, so that the movement of the carrying vehicle 2 is not affected by the limiting structure 413.

[0068] The first pulley 43 and the second pulley 44 are both fixed pulleys.

[0069] The utility model discloses a track 1 and carrying car 2 can conveniently transport strip-shaped track tie 5 into between upper clamping structure 31 and lower clamping structure 32, convenient operation, reliable function, when the pressure assembly 3 of static load test is located in the pressure joint position of track tie 5 end, the lower pressure block 324 and the backing plate 423 support the both ends of track tie 5 bottom surface respectively, thereby guarantee the balance of track tie 5, avoid track tie 5 unbalance and slip, improve test safety.

[0070] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "upper", "lower", "left", "right" and the like is the orientation or position relation based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0071] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be direct connection, can also be connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0072] In conclusion, for ordinary skilled in the art, according to the guidance of the utility model, the change, modification, replacement, deformation of the utility model still falls into the protection scope of the utility model without departing from the principles and spirits of the utility model.

Claims

1. A static load testing device for concrete sleepers, characterised in that: It comprises a track (1), a carrier (2), a pressurizing assembly (3) and a balancing assembly (4). The track (1) is transversely arranged; two tracks (1) are arranged in parallel; the carrier (2) is press-connected to the track (1) and can reciprocally slide along the length direction of the track (1). The pressurizing assembly (3) comprises an upper clamping structure (31) and a lower clamping structure (32) which are connected by a column (33). The balancing assembly (4) comprises a stand (41), a jacking rod (42) which is inserted into the inner cavity of the stand (41) and is longitudinally slidingly connected, and a cable (45) which is connected to the jacking rod (42); one end of the cable (45) is connected to the jacking rod (42) and the other end is connected to the lower clamping structure (32); the lower clamping structure (32) can pull the jacking rod (42) to move upward when clamping a rail sleeper (5) so as to support the rail sleeper (5).

2. The concrete sleeper static load testing apparatus according to claim 1, characterized in that: The upper clamping structure (31) comprises an upper seat (311) in which a hydraulic cylinder is installed; the output shaft (312) of the hydraulic cylinder is provided at the bottom end with an upper pressing block (313).

3. The concrete sleeper static load testing apparatus according to claim 2, wherein: The lower clamping structure (32) comprises a lower seat (321), a jacking seat (322) and a receiving table (323); the jacking seat (322) is connected to the lower seat (321) at the bottom end and is connected to the receiving table (323) at the top end; the receiving table (323) is provided at the top surface with a lower pressing block (324) which is adapted to the upper pressing block (313).

4. The concrete sleeper static load testing apparatus according to claim 3, wherein: The balancing assembly (4) further comprises a first pulley (43) and a second pulley (44); the first pulley (43) is connected to the lower seat (321) and the second pulley (44) is connected to the outer wall of the stand (41); the cable (45) is press-connected to the first pulley (43) and the second pulley (44) respectively and is bent to form an N shape; the end of the cable (45) which is away from the stand (41) is connected to the jacking seat (322).

5. The concrete sleeper static load testing apparatus according to claim 4, wherein: The side wall of the stand (41) is provided with a strip-shaped hole (411) arranged vertically; the jacking rod (42) comprises a rod body (421) and an extension rod (422); the rod body (421) is arranged vertically and is inserted into the inner cavity of the stand (41); the extension rod (422) is arranged horizontally and is fixedly connected to the rod body (421) perpendicularly; the extension rod (422) is inserted into the strip-shaped hole (411) and can reciprocally slide along the length direction of the strip-shaped hole (411); the end of the cable (45) which is away from the jacking seat (322) is connected to the extension rod (422).

6. The concrete sleeper static load testing apparatus according to claim 5, wherein: The second pulley (44) is located above the strip-shaped hole (411); the height of the first pulley (43) is lower than that of the second pulley (44).

7. The concrete sleeper static load testing apparatus according to claim 6, wherein: The cable (45) comprises a first tensioning part (451), a second tensioning part (452) and a third tensioning part (453) which are connected in sequence; the first tensioning part (451) and the second tensioning part (452) are arranged in parallel.

8. The concrete sleeper static load testing apparatus according to claim 7, wherein: The top end of the rod body (421) is provided with a pad (423).

9. The concrete sleeper static load testing apparatus according to claim 8, wherein: The carrier (2) comprises a carrier cross beam (21), a carrier longitudinal beam (22) and an adjusting plate (23); the carrier cross beam (21) is provided with two and arranged in parallel with each other; the carrier longitudinal beam (22) is connected with the two carrier cross beams (21) at both ends respectively; the carrier cross beam (21) is provided with a first wheel body (211) at the bottom, the first wheel body (211) is in rolling connection with the track (1); the adjusting plate (23) is arranged above the carrier longitudinal beam (22) and can slide along the length direction of the carrier longitudinal beam (22).

10. The static load testing device for concrete sleepers according to any one of claims 1 to 9, characterized in that: Further comprising a test room (6) for realizing spatial separation with the production workshop, the test room (6) is provided with a wall (61), the wall (61) is provided with a window (611); the track (1) is insertedly arranged in the window (611); the pressurizing assembly (3) and the balancing assembly (4) are arranged in the test room (6).

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