Locomotive sleeper beam detection device and detection method after locomotive underframe assembly sleeper beam assembly

Abstract

The invention discloses a locomotive sleeper beam detection device and a detection method after locomotive underframe assembly sleeper beam assembly. The locomotive sleeper beam detection device comprises a bottom plate assembly, a supporting assembly and a top plate assembly. The top plate assembly is integrally of an I-shaped structure, the supporting assemblies are perpendicularly arranged at the four corners of the top plate assembly, and the bottom plate assembly is arranged at the ends, away from the top plate assembly, of the supporting assemblies. A longitudinal measuring groove is formed in the center of the longitudinal position of the top plate assembly. A transverse measuring groove is formed in the central position of the transverse position of the top component; according to the scheme, the flatness of the underframe sleeper beam component and the sleeper guide pin can be effectively detected, and it is ensured that the product quality of the component meets the process requirement; meanwhile, according to the scheme, the consistency and the accuracy of correlative size detection means for sleeper beam assembly in the primary assembly process of the chassis can be effectively ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of locomotive bogie detection, and particularly relates to a locomotive bolster detection device and a detection method for a locomotive bogie assembly after bolster assembly. BACKGROUND

[0002] The locomotive bogie bolster is a key component of the bogie assembly. The locomotive secondary spring is installed through the bolster guide pin, and the upper body of the locomotive is connected with the lower bogie. The function of the bolster is to evenly distribute the upper mass of the locomotive to the bogie to ensure the uniform distribution of the axle load, to ensure the normal transmission of the lateral force, and to ensure the good running stability and stability of the locomotive.

[0003] The structure of the locomotive bogie bolster is complex and the quality requirement is high. In order to ensure that the spring installation surface in the bolster and the bolster guide pin can be normally connected after the assembly and welding, the thickness of the bolster cover plate is processed during the blanking, the bolster guide pin hole is processed after the assembly and welding of the component, and finally the bolster guide pin and the bolster reinforcing plate are assembled and welded. The structure of the bolster is shown in Figure 1 The locomotive bogie assembly is composed of end traction beams (2 pieces), bolster beams (2 pieces), transformer beams (1 piece), side beams (left and right each 1), and other components. According to the technical requirements of the body steel structure, after the body is welded, (1) the distance between the two bolsters from the lateral center line of the locomotive is 6048±2; (2) the diagonal line deviation of the center hole of the bolster spring seat is ≤3mm; (3) the difference between the horizontal distance between the center of the secondary spring installation seat on the left and right of the bogie and the design nominal value (2110) is ≤3mm; (4) the difference between the horizontal distance between the center of the secondary spring installation seat on the left and right of the bogie and the center line of the body is ≤2mm; (5) the difference between the longitudinal center distance of the secondary springs on the left and right sides is ≤2mm; (6) the height difference of the secondary spring installation surface on the left and right sides is ≤2mm. According to the manufacturing process of the locomotive bogie, the assembly of the end traction beam, the bolster beam, the transformer beam, the side beam and other components needs to be completed at one time, and the above dimensions need to meet the technical requirements after the assembly and welding of the bogie at one time. The quality requirement is high and the technical difficulty is great. The assembly structure of the locomotive bogie is shown in Figure 2 ; After the assembly of the bogie at one time, the center distance between the two bolsters is 12096±2mm. Since the middle part is provided with a protruding transformer beam, and the secondary spring installation surface on the left and right sides of the bogie bolster is a sunken structure with a depth of 4940+1mm. After the assembly of the bogie at one time, since a large number of components are assembled and welded on the back of the bogie, the heights of the components are inconsistent, and the detection of the dimensions during the assembly process cannot effectively measure the above related dimensions directly. Therefore, the original process detection method uses a level and a tape measure to indirectly (convert) measure, that is, the center line of the bolster is extended to the side beam of the bogie, and the related dimensions are detected by using the high point of the edge of the side beam web plate, and the flatness is converted to the bolster lower cover plate for detection.

[0004] The original detection method has the following defects: (1) The pillow guide pin and the pillow reinforcing plate are integrally machined and then assembled and welded. The pillow guide pin and the assembly hole are in clearance fit, and only the outer side is welded. The original method does not detect the inclination of the pillow guide pin after assembly and welding, and the spring adjustment pad often gets stuck with the pillow guide pin during assembly.

[0005] (2) Due to the deep pillow beam sink, the original detection method often converts the spring seat bottom plane detection to the pillow beam lower cover plate plane detection. In fact, the pillow beam bottom plane has a 1-2mm unevenness after assembly and welding, and the flatness and height difference detected by the level and height gauge are not accurate.

[0006] (3) Due to the unevenness of the back of the chassis and the interference of the parts, the original detection method converts the size detection related to the center of the pillow beam to the side beam web plate, including the distance between the center of the pillow beam and the horizontal and vertical directions of the locomotive, and the diagonal difference. Due to the height difference of the single beam after the side beam assembly, and because the position of the converted measurement point is determined by the operator, the operator is required to have high responsibility and ability. Since there is no consistent detection reference, the size of each vehicle is different and the deviation is different, the size measurement has many uncertain factors and large errors. It is impossible to effectively ensure that the height difference of the locomotive body after assembly is ≤2mm, and the center distance is ≤3mm.

[0007] Due to the inaccurate detection process and large errors, although the upper part of the locomotive and the bogie are respectively assembled after the assembly is completed and the weight is adjusted according to the process requirements, the axle weight detection of some locomotives after the whole vehicle is landed still cannot meet the design and process requirements, and the pad needs to be adjusted again, causing a large amount of rework. SUMMARY

[0008] The purpose of the present application is to provide a locomotive pillow beam detection device and a detection method for the pillow beam of the locomotive chassis assembly after the pillow beam is assembled, to solve the problem of inefficient detection of the pillow beam in the prior art and inaccurate detection of the chassis.

[0009] The present application is realized by the following scheme: A locomotive pillow beam detection device, comprising a bottom plate assembly, a support assembly and a top plate assembly; the top plate assembly is in a whole "H" shape structure, the support assembly is vertically arranged at the four corners of the top plate assembly, and the bottom plate assembly is arranged at the end of the support assembly away from the top plate assembly; the center position of the longitudinal position of the top plate assembly is provided with a longitudinal measurement slot; and the center position of the transverse position of the top plate assembly is provided with a transverse measurement slot.

[0010] Based on the structure of the above locomotive pillow beam detection device, the bottom plate assembly includes a first support ring and a second support ring, the first support ring and the second support ring are arranged in parallel, the center of the first support ring and the second support ring is provided with a clamping cavity, and the circumferential position of the first support ring and the second support ring is provided with a clamping groove matched with the support assembly; the clamping grooves are uniformly spaced along the clamping cavities.

[0011] Based on the structure of the above locomotive pillow beam detection device, the support assembly includes a first clamping plate and a second clamping plate arranged in an interlaced clamping manner; the bottom of the first clamping plate and the second clamping plate is provided with a matching cavity matched with the clamping groove on the first support ring and the second support ring. Based on the structure of the above locomotive pillow beam detection device, the upper end center position of the first clamping plate is provided with an upper clamping groove extending to the matching cavity direction; the lower end center position of the second clamping plate is provided with a lower clamping groove extending to the upper clamping groove direction; the first clamping plate and the second clamping plate are clamped through the upper clamping groove and the lower clamping groove to form a frame structure matched with the pillow beam cavity structure to be clamped.

[0012] Based on the structure of the above locomotive pillow beam detection device, the first clamping plate and the second clamping plate are arranged in an interlaced clamping manner; the bottom of the first clamping plate and the second clamping plate is provided with a matching cavity matched with the clamping groove on the first support ring and the second support ring.

[0013] Based on the structure of the above locomotive pillow beam detection device, the top plate assembly includes a first cross beam, a second cross beam and a first longitudinal beam; the first cross beam and the second cross beam are arranged in parallel, the first longitudinal beam is arranged at the center position of the first cross beam and the second cross beam respectively, the center position of the first cross beam and the second cross beam is provided with a transverse measurement groove, and the center position of the first longitudinal beam is provided with a longitudinal measurement groove.

[0014] Based on the structure of the above locomotive pillow beam detection device, the center position of the first cross beam and the second cross beam is provided with a transverse reinforcing rib perpendicular to the upper surface thereof; the center position of the first longitudinal beam is provided with a longitudinal reinforcing rib perpendicular to the upper surface thereof; the transverse reinforcing rib and the longitudinal reinforcing rib are provided with lifting holes at both sides.

[0015] The scheme also discloses a detection method for the assembled locomotive underframe assembly pillow beam, which comprises the following steps: Step S1: underframe assembly, when the underframe is assembled for the first time, the side beam, the transformer beam, the pillow beam and the end traction beam are hoisted onto the underframe assembly tool according to the process requirements, and the components are assembled according to the existing center point alignment with the longitudinal and transverse center lines of the underframe; after the assembly of the components of the underframe is completed; Step S2: hoist the detection device into the cavity structure of the pillow beam, make the clamping cavity of the detection device cooperate with the pillow beam guide pin at the bottom of the pillow beam to realize positioning, thereby detecting the flatness of the pillow beam, the relative size from the center, the related size of the diagonal, and the flatness of the bottom of the pillow beam, the size of the pillow beam guide pin, and the perpendicularity of the cavity of the pillow beam and the bottom plane to meet the size requirements.

[0016] In step S2, the flatness of the pillow beam is measured by directly measuring the four corners of the top plate assembly on the detection device with a level, and the height difference between the left and right installation surfaces of the pillow beam is adjusted to be ≤2mm. In step S2, the relative size of the pillow beam from the center is measured, including the distance of the pillow beam from the transverse center line of the chassis and the distance of the pillow beam from the longitudinal center line of the chassis. The distance of the pillow beam from the transverse center line of the chassis is specifically measured by measuring the distance of the transverse measurement grooves of the first and second cross beams on the detection device from the transverse center line of the chassis, and determining whether the measured distances are equal. The distance of the pillow beam from the longitudinal center line of the chassis is specifically measured by measuring the distance of the longitudinal measurement grooves of the first longitudinal beam on the detection device from the longitudinal center line of the chassis, and determining whether the measured distances are equal or collinear.

[0017] In step S2, the relative size of the pillow beam from the diagonal is measured by taking the contact part of the transverse and longitudinal reinforcing ribs as the measurement point, and there are four measurement points on the two detection devices. The distance between the opposite measurement points is measured to determine whether the distances of the two pairs of connecting lines are the same. In step S2, the flatness of the bottom of the pillow beam is measured by contacting the bottom surface of the first support ring with the inner bottom surface of the pillow beam cavity, and measuring the levelness of the first longitudinal beam with a level to realize the measurement of the flatness of the bottom of the pillow beam. In step S2, the size of the pillow beam guide pin of the pillow beam is measured by measuring and judging the depth of the pillow beam guide pin clamped into the clamping cavity.

[0018] As described above, the beneficial effects of the present application are: 1. The present scheme can effectively detect the flatness of the chassis pillow beam component and the pillow guide pin, ensuring that the product quality of the component meets the process requirements.

[0019] 2. The present scheme effectively ensures the consistency and accuracy of the related size detection means of the pillow beam assembly in the first assembly process of the chassis.

[0020] 3, the assembly, detection device use tracking table shows that the measuring device, detection method effectively ensures the size of the product after the chassis once the sleeper beam is assembled, solves the problem of unqualified locomotive axle load detection after the whole vehicle is landed due to the inaccurate and large error of steel structure assembly welding, and re-pads. The assembly and detection device has been normally applied to production.

[0021] 4, the scheme provides a detection method and guarantee means for similar locomotive products with large height difference on the back of the chassis and high product size requirements, fills the gap in detection technology, can realize safe and reliable operation, and improves the operation efficiency and quality of operators. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the existing technology sleeper beam structure; Figure 2 is a schematic diagram of the structure of the chassis of the locomotive once assembled in the prior art; Figure 3 is a schematic diagram of the three-dimensional structure of a locomotive sleeper beam detection device in the present application; Figure 4 is a schematic diagram of the structure of the first support ring in the present application; Figure 5 is a schematic diagram of the structure of the first clamping plate in the present application; Figure 6 is a schematic diagram of the structure of the second clamping plate in the present application; Figure 7 is a schematic diagram of the assembly structure of the detection assembly and the chassis in the present application; Figure 8 is a schematic diagram of the measurement reference line in the present application; The drawings show that: 1, the bottom plate assembly; 2, the support assembly; 3, the top plate assembly; 4, the chassis; 5, the longitudinal center line of the chassis; 6, the transverse center line of the chassis; 7, the sleeper beam; 11, the first support ring; 12, the second support ring; 13, the clamping cavity; 14, the clamping groove; 21, the first clamping plate; 22, the second clamping plate; 23, the matching cavity; 24, the upper clamping groove; 25, the lower clamping groove; 26, the stepped structure; 31, the longitudinal measurement groove; 32, the transverse measurement groove; 33, the first cross beam; 34, the second cross beam; 35, the first longitudinal beam; 36, the transverse reinforcing rib; 37, the longitudinal reinforcing rib; 38, the lifting hole. DETAILED DESCRIPTION

[0023] All features disclosed in this specification, or the steps of any method or process specified in this specification, can be combined in any combination, except where such features and / or steps are mutually exclusive.

[0024] Any feature in the foregoing description, including any accompanying drawings, that is expressed in terms of a means to achieve a particular functionality can be achieved by a wide variety of alternative features that can not be mutually exclusive, but offers an alternative manner of implementing the concept. Similarly, therefore, any reference to specific advantages (or preferred embodiments) must be read in the context of the full disclosure, and should not be interpreted as limiting the scope of the invention.

[0025] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a predetermined orientation, be constructed and operated in a predetermined orientation, and therefore cannot be understood as limiting the present application.

[0026] In addition, the terms "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features.

[0027] Embodiment 1 The present application provides a technical solution: As Figures 3-8 A locomotive pillow beam detection device, comprising a bottom plate assembly 1, a support assembly 2 and a top plate assembly 3; the top plate assembly 3 is in the shape of an "I" structure, the support assembly 2 is vertically arranged at the four corners of the top plate assembly, and the bottom plate assembly 1 is arranged on the support assembly 2 away from the end of the top plate assembly 3; a longitudinal measurement groove 31 is arranged at the center position of the longitudinal position of the top plate assembly 3; a transverse measurement groove 32 is arranged at the center position of the transverse position of the top plate assembly.

[0028] Based on the above structure, by setting the top plate assembly to an "I" structure, a structure for accommodating the pillow beam 7 cavity can be formed on both sides of the top plate assembly, so that it can detect the levelness of the left and right sides of the same pillow beam 7. By arranging two support assemblies 2 on one side of the top plate assembly, the detection device can be stably accommodated in the pillow beam 7 cavity, and stable measurement can be realized. The longitudinal measurement groove 31 and the transverse measurement groove 32 are arranged at the center position of the longitudinal position and the center position of the transverse position of the top plate assembly 3, respectively, so that the detection device assembled in the pillow beam 7 cavity can be measured with the longitudinal center line and the transverse center line of the chassis 4, and the accurate determination of the position of the pillow beam 7 can be realized.

[0029] As an example, the bottom plate assembly 1 can include a first support ring 11 and a second support ring 12, which are arranged in parallel, a clamping cavity 13 is arranged at the center of the first support ring 11 and the second support ring 12, and a clamping groove 14 cooperating with the support assembly 2 is arranged at the circumferential position of the first support ring 11 and the second support ring 12 respectively; the clamping grooves 14 are uniformly spaced along the clamping cavity 13; Based on the above structure, the two parallel support rings can save the overall material and reduce the weight of the entire device on the one hand, and on the other hand, when the clamping cavity 13 cooperates with the pillow beam 7 guide pin in the cavity of the pillow beam 7, at least two limit positions contact the pillow beam 7 guide pin, so that the pillow beam 7 guide pin can be stably clamped into the clamping cavity 13, and the stable connection of the detection device is realized; The clamping groove 14 arranged at the circumferential position of the clamping cavity 13 facilitates the configuration and assembly of the support assembly 2.

[0030] As an example, the support assembly 2 can include a first clamping plate 21 and a second clamping plate 22 arranged in an interlaced clamping manner; the bottom of the first clamping plate 21 and the second clamping plate 22 is provided with a matching cavity 23 matched with the clamping groove 14 on the first support ring 11 and the second support ring 12; An upper clamping groove 24 extending to the matching cavity 23 is arranged at the center position of the upper end of the first clamping plate 21; a lower clamping groove 25 extending to the upper clamping groove 24 is arranged at the center position of the lower end of the second clamping plate 22; the first clamping plate 21 and the second clamping plate 22 are clamped by the upper clamping groove 24 and the lower clamping groove 25 to form a frame structure matched with the cavity structure of the pillow beam 7 to be clamped; A stepped structure 26 is arranged in the matching cavity 23 at the bottom of the first clamping plate 21 and the second clamping plate 22, and the position of the stepped structure 26 matches the position of the second support ring 12; Based on the above structure, the special structure of the first clamping plate 21 and the second clamping plate 22 can form a stable clamping structure of the first clamping plate 21, the second clamping plate 22, the first support ring 11 and the second support ring 12; the stepped structure 26 arranged on the matching cavity 23 can limit the second support ring 12. Thus, the cavity structure matched with the pillow beam 7 guide pin is arranged in the frame structure formed by the first clamping plate 21 and the second clamping plate 22, so that the entire pillow beam 7 guide pin can be stably clamped into the matching cavity 23.

[0031] As an example, the top plate assembly 3 can include a first cross beam 33, a second cross beam 34 and a first longitudinal beam 35; the first cross beam 33 and the second cross beam 34 are arranged in parallel, and the first longitudinal beam 35 is arranged at the center position of the first cross beam 33 and the second cross beam 34; a transverse measurement slot 32 is arranged at the center position of the first cross beam 33 and the second cross beam 34, and a longitudinal measurement slot 31 is arranged at the center position of the first longitudinal beam 35; Based on the above structure, when the detection assembly is placed in the inner cavity of the pillow beam 7, the various data of the pillow beam 7 can be quickly measured through the transverse measuring groove 32 and the longitudinal measuring groove 31, the accurate installation of the pillow beam 7 is realized, and the measured data is the bottom flatness of the pillow beam 7, the size of the pillow guide pin and the perpendicularity of the pillow beam 7 cavity to the bottom flatness, the center size of the pillow beam 7 and the like.

[0032] As an example, the transverse reinforcing ribs 36 perpendicular to the upper surfaces of the first cross beam 33 and the second cross beam 34 are arranged at the center positions of the first cross beam 33 and the second cross beam 34; the longitudinal reinforcing rib 37 perpendicular to the upper surface of the first longitudinal beam 35 is arranged at the center position of the first longitudinal beam 35; and the lifting holes 38 are arranged at the positions on both sides of the transverse reinforcing ribs 36 and the longitudinal reinforcing rib 37.

[0033] Based on the above structure, the stability of the entire detection device can be increased by arranging the reinforcing ribs on the first cross beam 33, the second cross beam 34 and the first longitudinal beam 35 respectively, and the lifting holes 38 arranged on the reinforcing ribs facilitate the hoisting of the entire detection device in the later period.

[0034] As an example, after the clamping assembly of the detection device, welding operation is performed, and finally stress relief annealing operation is performed; and then the detection device is processed by using a three-dimensional scribing instrument.

[0035] Embodiment 2 The application provides a technical scheme: A detection method for a locomotive underframe assembly pillow beam after assembly, comprising the following steps: Step S1: underframe 4 assembly, when the underframe 4 is assembled for the first time, the side beam, the transformer beam, the pillow beam 7 and the end traction beam are successively hoisted onto the underframe 4 assembly tool according to the process requirements, and the components are assembled according to the alignment of the existing center points to the longitudinal and transverse center lines of the underframe 4; after the assembly of the components of the underframe 4 is completed, Step S2: the detection device is hoisted into the cavity structure of the pillow beam 7, the clamping cavity 13 of the detection device is matched with the pillow beam 7 guide pin at the bottom of the pillow beam 7 to realize positioning, so that the flatness of the pillow beam 7, the relative size from the center, the related size of the diagonal line, the bottom flatness of the pillow beam 7, the size of the pillow beam 7 guide pin and the perpendicularity of the pillow beam 7 cavity to the bottom flatness are detected to meet the size requirements.

[0036] In step S2, the flatness of the pillow beam 7 can be measured by directly measuring the four corners of the top plate assembly 3 on the detection device through the level, and the height difference between the left and right installation surfaces of the pillow beam 7 is adjusted to be ≤2mm, so that the size meets the process requirements.

[0037] In step S2, the relative size from the center of the pillow beam 7 can be measured, which includes the distance of the pillow beam 7 from the horizontal center line 6 of the underframe and the distance of the pillow beam 7 from the longitudinal center line 5 of the underframe. Wherein the distance between the pillow beam 7 and the chassis transverse center line 6 can be measured by measuring the distance between the transverse measuring groove 32 of the first transverse beam 33 and the second transverse beam 34 on the two side detection devices and the chassis transverse center line 6, and whether the measured distances are equal can determine whether the positions of the pillow beam 7 on both sides of the chassis 4 are in the correct position. Wherein the distance between the pillow beam 7 and the chassis longitudinal center line 5 can be measured by measuring the distance between the longitudinal measuring groove 31 of the first longitudinal beam 35 on the two side detection devices and the chassis longitudinal center line 5, and whether the measured distances are equal or collinear can determine whether the positions of the pillow beam 7 on both sides of the chassis 4 are in the correct position. In step S2, the relative size of the pillow beam 7 to the diagonal line can be measured by taking the contact part of the transverse reinforcing rib 36 and the longitudinal reinforcing rib 37 as the measurement point, and there are four measurement points on the two detection devices. The distance between the opposite measurement points is measured to determine whether the distances of the two pairs of connecting lines are the same, thereby realizing the measurement of the relative size of the pillow beam 7 to the diagonal line.

[0038] In step S2, the bottom flatness of the pillow beam 7 is measured. The bottom surface of the first support ring 11 is in contact with the bottom surface in the cavity of the pillow beam 7, and the levelness of the first longitudinal beam 35 is measured by the level, thereby realizing the measurement of the bottom flatness of the pillow beam 7.

[0039] In step S2, the pillow beam 7 guide pin size of the pillow beam 7 is measured. The depth of the pillow beam 7 guide pin clamped into the clamping cavity is measured and judged. In step S2, the perpendicularity between the pillow beam 7 cavity and the bottom plane is detected. The support assembly 2 is clamped into the pillow beam 7 cavity for judgment.

[0040] After the tooling is fixed, the front / rear end pillow beam 7 flatness and assembly size of the chassis 4 are measured and detected. The level directly measures the flatness and height difference of the upper plane of the top plate assembly 3. The size of the top plate assembly 3 detection point and the chassis transverse center line 6 and the diagonal line size are measured. Through the design and production of the chassis 4 assembly pillow beam 7 assembly and detection device, the measurement point can be effectively fixed, and the reference surface of the measurement and detection is consistent. The flatness and size of the pillow guide pin and the pillow reinforcing plate after the assembly of the pillow beam 7 part are detected, which effectively ensures the accuracy of the relative spring mounting surface flatness of the pillow beam 7 and the diagonal line related size detection after the chassis 4 is assembled.

[0041] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A locomotive bolster detection device, characterized by: The application relates to a kind of prefabricated house, including bottom plate assembly (1), support assembly (2) and top plate assembly (3);The top plate assembly (3) is integrally manufactured into "H" shape structure, the support assembly (2) is vertically arranged at the four corners of top component, and the bottom plate assembly (1) is arranged on the end of support assembly (2) away from top plate assembly (3);The center position of longitudinal position of the top plate assembly (3) is provided with longitudinal measuring groove (31);The center position of transverse position of the top component is provided with transverse measuring groove (32).

2. A machine bed beam inspection apparatus as claimed in claim 1, wherein: The bottom plate assembly (1) includes first support ring (11) and second support ring (12), the first support ring (11) and the second support ring (12) are arranged in parallel, the center of the first support ring (11) and the second support ring (12) is provided with a clamping cavity (13), and the circumferential position of the first support ring (11) and the second support ring (12) is provided with a clamping groove (14) matched with the support assembly (2);The clamping groove (14) is uniformly spaced along the clamping cavity (13).

3. A machine bed beam inspection apparatus as claimed in claim 2, wherein: The support assembly (2) includes first clamping plate (21) and second clamping plate (22) arranged in interlaced clamping manner;The bottom of the first clamping plate (21) and the second clamping plate (22) is provided with a matching cavity (23) matched with the clamping groove (14) on the first support ring (11) and the second support ring (12).

4. A machine bed beam inspection apparatus as claimed in claim 3, wherein: The center position of the upper end of the first clamping plate (21) is provided with an upper clamping groove (24) extending to the matching cavity (23);The center position of the lower end of the second clamping plate (22) is provided with a lower clamping groove (25) extending to the upper clamping groove (24);The first clamping plate (21) and the second clamping plate (22) are clamped by the upper clamping groove (24) and the lower clamping groove (25) to form a frame structure matched with the cavity structure of the to-be-clamped pillow beam (7).

5. A machine bed beam inspection apparatus as claimed in claim 4, wherein: The first clamping plate (21) and the second clamping plate (22) are provided with a stepped structure (26) in the bottom matching cavity (23), and the position of the stepped structure (26) matches the position of the second support ring (12).

6. A machine bed beam inspection apparatus as claimed in claim 5, wherein: The top plate assembly (3) includes first cross beam (33), second cross beam (34) and first longitudinal beam (35);The first cross beam (33) and the second cross beam (34) are arranged in parallel, and the first longitudinal beam (35) is arranged at the center position of the first cross beam (33) and the second cross beam (34) respectively, the center position of the first cross beam (33) and the second cross beam (34) is provided with transverse measuring groove (32), and the center position of the first longitudinal beam (35) is provided with longitudinal measuring groove (31).

7. A machine bed beam inspection apparatus as claimed in claim 6, wherein: The center position of the first cross beam (33) and the second cross beam (34) is provided with a transverse reinforcing rib (36) perpendicular to the upper surface thereof, and the center position of the first longitudinal beam (35) is provided with a longitudinal reinforcing rib (37) perpendicular to the upper surface thereof;The both sides of the transverse reinforcing rib (36) and the longitudinal reinforcing rib (37) are provided with lifting holes (38).

8. A method for inspecting the assembled bolster of a locomotive underframe assembly, characterized by: The application relates to a kind of prefabricated house, including bottom plate assembly (1), support assembly (2) and top plate assembly (3);The top plate assembly (3) is integrally manufactured into "H" shape structure, the support assembly (2) is vertically arranged at the four corners of top component, and the bottom plate assembly (1) is arranged on the end of support assembly (2) away from top plate assembly (3);The center position of longitudinal position of the top plate assembly (3) is provided with longitudinal measuring groove (31);The center position of transverse position of the top component is provided with transverse measuring groove (32). The following steps are included: Step S1: chassis (4) assembly, chassis (4) assembly, according to the process requirements, the side beam, transformer beam, sleeper beam (7) and end traction beam are hoisted to the chassis (4) assembly tool in turn, and the components are aligned according to the existing center point to assemble the longitudinal and transverse center line of the chassis (4); after the assembly of each part of the chassis (4) is completed; Step S2: hoist the detection device into the cavity structure of the sleeper beam (7), so that the clamping cavity (13) of the detection device cooperates with the sleeper beam (7) guide pin at the bottom of the sleeper beam (7) to realize positioning, thereby detecting the flatness of the sleeper beam (7), the relative size from the center, the related size of the diagonal, and the flatness of the bottom of the sleeper beam (7), the size of the sleeper beam (7) guide pin, and the perpendicularity of the cavity of the sleeper beam (7) and the bottom plane to meet the size requirements.

9. The method of claim 8, wherein: In step S2, the flatness of the sleeper beam (7) is measured by directly measuring the four corners of the top plate assembly (3) on the detection device through the level, and the height difference between the left and right installation surfaces of the sleeper beam (7) is adjusted to be ≤2mm; In step S2, the relative size of the sleeper beam (7) from the center is measured, which includes the distance of the sleeper beam (7) from the horizontal center line (6) of the chassis and the distance of the sleeper beam (7) from the longitudinal center line (5) of the chassis; The distance of the sleeper beam (7) from the horizontal center line (6) of the chassis is specifically measured as the distance between the horizontal measurement grooves (32) of the first and second transverse beams (33) and (34) on the detection device from the horizontal center line (6) of the chassis, and whether the measured distances are equal; The distance of the sleeper beam (7) from the longitudinal center line (5) of the chassis is specifically measured as the distance between the longitudinal measurement grooves (31) of the first longitudinal beams (35) on the two detection devices from the longitudinal center line (5) of the chassis, and whether the measured distances are equal or collinear.

10. The method of claim 8, wherein: In step S2, the relative size of the sleeper beam (7) from the diagonal is measured, which is measured by taking the contact part of the transverse and longitudinal reinforcing ribs (36) and (37) as the measuring point, and there are four measuring points on the two detection devices. The distance between the measuring points is measured to determine whether the distance between the two connecting lines is the same. In step S2, the flatness of the bottom of the sleeper beam (7) is measured; the bottom surface of the first support ring (11) is in contact with the inner bottom surface of the sleeper beam (7), and the level of the first longitudinal beam (35) is measured by the level to realize the measurement of the flatness of the bottom of the sleeper beam (7); In step S2, the size of the sleeper beam (7) guide pin of the sleeper beam (7) is measured; the size is measured and judged by the depth of the sleeper beam (7) guide pin clamped into the clamping cavity.

Images