Fixing tool for impact and vibration test of traction motor of locomotive vehicle equipment

Abstract

The utility model relates to an impact and vibration test fixing tool for a traction motor of locomotive vehicle equipment. The impact and vibration test fixing tool comprises a main engine base, a main shaft, a positioning bolt, a positioning sleeve, a positioning sleeve locking nut, an adjusting plate, a motor upper shaft mounting base, a bolt, a motor upper fixing shaft, two-end positioning screw sleeves, two-end locking nuts and a traction motor. According to the impact and vibration test fixing tool for the traction motor of the locomotive vehicle equipment, a vibration impact detection working environment is borne in three directions, so that the overall structural design, material selection and the like of the fixing device meet the requirements of stability and safety when loads in all directions are met, and the main shaft and the main seat are assembled in an overall transition fit manner in an axial structure; the shaft and the motor hole are assembled in a transition fit mode and then are tightened through the locking nut. The locomotive traction motor impact and vibration test detection fixing tool clamp meets the requirement for a full-magnitude impact vibration test of a product, and meanwhile it is guaranteed that the fastening screws cannot loosen in the test period.

Description

Technical Field

[0001] The utility model relates to the technical field of impact and vibration testing of rolling stock equipment, in particular to a fixing tool for impact and vibration testing of a traction motor of rolling stock equipment. Background Art

[0002] Based on the technical requirements and mounting standards of GB / T 21563-2018, "Shock and Vibration Tests for Rail Transit Rolling Stock Equipment," the test specimens must be mounted directly or via fixtures on the test bench according to their actual installation method for vibration and shock testing. The strength, stiffness, and other quality indicators of the fixture must be superior to those of the test equipment.

[0003] In order for the traction motor to be able to operate safely when installed on a vehicle, the test equipment components must be installed on the test bench directly or through a fixing device in an installation state simulating the normal use of the actual vehicle for vibration and shock detection tests.

[0004] The existing locomotive and vehicle equipment - traction motor impact and vibration test fixture has the problem of loosening of fastening screws during large-scale testing. Therefore, a locomotive and vehicle equipment traction motor impact and vibration test fixture is proposed to solve the above-mentioned problem. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a fixed tool for impact and vibration testing of traction motors of locomotive and vehicle equipment, which ensures that fasteners will not loosen under the conditions of meeting the test level, improves the accuracy of the test, and solves the above-mentioned problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixed fixture for impact and vibration testing of traction motors of locomotive and vehicle equipment, comprising a main base, a main shaft, a positioning bolt, a positioning sleeve, a second locking nut, an adjustment plate, a motor upper shaft mounting seat, a bolt, a fixed shaft on the motor, positioning screw sleeves at both ends, first locking nuts at both ends, and a traction motor.

[0007] Furthermore, the bottom surface of the main engine base is installed on the vibration table of the detection equipment, the main shaft transition fits into the holes at both ends of the main engine base, the middle transition fit of the main shaft is installed into the positioning sleeve, and the positioning bolt is installed into the main shaft hole of the traction motor to prevent the traction motor from radially jumping. The second locking nut locks the end face of the middle hole of the traction motor to prevent the traction motor from axially moving.

[0008] Furthermore, an adjustment plate and an upper shaft mounting seat of the motor are installed on the main engine base and fixed with bolts. One end of the upper fixed shaft of the motor is welded to the upper shaft mounting seat of the motor, and the other end is installed with a positioning screw sleeve for transition fit and assembled into the traction motor hole, and an anti-loosening washer and a positioning locking nut are installed.

[0009] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0010] 1. The locomotive traction motor impact and vibration test fixture is designed to withstand the vibration and impact test working environment in three directions, so that the overall structural design and material selection of the fixture meet the requirements of stability and safety under load in all directions.

[0011] 2 The impact and vibration test fixture for the locomotive traction motor has an axial structure in which the main shaft and the main seat are assembled in an integral transition fit and are tightened and reinforced with high-strength bolts.

[0012] 3. Impact and vibration test of locomotive traction motor. The fixed shaft on the motor of the fixed fixture is divided into two parts, which are welded into a seat structure. The center height positioning is adjusted by an adjustment plate. The shaft and the motor hole are transitionally matched and assembled. At the same time, they are tightened with a lock nut. This is considered to be the installation method used normally on actual vehicles.

[0013] 4. The fixed fixture for the impact and vibration test of the locomotive traction motor meets the full-scale impact and vibration test requirements of the product while ensuring that the fastening screws will not loosen during the test.

[0014] 5. The locomotive traction motor impact and vibration test fixture not only has the bearing strength that meets the test conditions, but also can be accurately positioned in the three-direction work station installation. The main focus is that the testing equipment and fixtures simulate the use environment conditions of the tested products to conduct testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front cross-sectional structural diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the front view, side view and top view of the cross-section structure of the utility model;

[0017] Figure 3 This is a partially enlarged cross-sectional structural diagram of the utility model;

[0018] Figure 4 It is a partially enlarged cross-sectional structural schematic diagram of the utility model.

[0019] In the figure: 1. Main engine base; 2. Main shaft; 3. Positioning bolt; 4. Positioning sleeve; 5. Second locking nut; 6. Adjustment plate; 7. Motor upper shaft mounting seat; 8. Bolt; 9. Motor upper fixed shaft; 10. Positioning screw sleeve; 11. First locking nut; 12. Traction motor; 13. Anti-loosening washer; 14. Positioning locking nut. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-4 , an embodiment provided by the utility model:

[0022] A fixture for impact and vibration testing of traction motors for locomotive and vehicle equipment includes a main base 1, a main shaft 2, positioning bolts 3, positioning sleeves 4, a second locking nut 5, an adjustment plate 6, a motor upper shaft mounting seat 7, bolts 8, a motor upper fixed shaft 9, positioning screw sleeves 10 at both ends, locking nuts 11 at both ends, and a traction motor 12.

[0023] Furthermore, the locomotive traction motor impact and vibration test fixture bears the vibration impact test working environment in three directions, so that the overall structural design, material selection and other requirements of the fixture can be met to ensure stability and safety when loaded in all directions.

[0024] Furthermore, the locomotive traction motor impact and vibration test detection fixture has an axial structure in which the main shaft and the main seat are assembled as an integral transition fit and are tightened and reinforced with high-strength bolts.

[0025] Furthermore, in the impact and vibration test of the locomotive traction motor, the fixed shaft on the fixed fixture motor is divided into two parts, which are welded into a seat structure, and the center height positioning is adjusted by an adjustment plate. The shaft and the motor hole are assembled with a transition fit and tightened with a lock nut at the same time. This is considered to be the installation method used normally in actual vehicles.

[0026] Furthermore, the locomotive traction motor impact and vibration test detection fixture meets the product's full-scale impact and vibration test requirements while ensuring that the fastening screws will not loosen during the test.

[0027] Furthermore, the locomotive traction motor impact and vibration test fixture not only has the load-bearing strength that meets the test conditions, but also can be accurately positioned in three-directional work station installation. The main focus is that the testing equipment and fixtures simulate the use environment conditions of the tested products to conduct testing.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for impact and vibration testing of traction motors for rolling stock equipment, characterized in that: It comprises a main engine base (1), a main shaft (2), a positioning bolt (3), a positioning sleeve (4), a second locking nut (5), an adjustment plate (6), a motor upper shaft mounting seat (7), a bolt (8), a motor upper fixed shaft (9), positioning screw sleeves (10) at both ends, first locking nuts (11) at both ends, and a traction motor (12); The bottom surface of the main engine base (1) is mounted on the vibration table of the detection equipment, the main shaft (2) is installed in the holes at both ends of the main engine base (1) through transition fit, the middle transition fit of the main shaft (2) is installed in the positioning sleeve (4), and the positioning bolt (3) is installed in the main shaft hole of the traction motor (12) to prevent the traction motor (12) from jumping in the radial direction, and the second locking nut (5) locks the end face of the middle hole of the traction motor (12) to prevent the traction motor (12) from moving in the axial direction; An adjustment plate (6) and a motor upper shaft mounting seat (7) are installed on the main engine base (1) and are locked and fixed with bolts (8). One end of the motor upper fixed shaft (9) is welded to the motor upper shaft mounting seat (7), and the other end is installed with a positioning screw sleeve (10) for transitional matching and assembly of the traction motor (12). An anti-loosening pad (13) and a positioning locking nut (14) are installed.

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