Difficult-to-shift pressing frame structure for axle fatigue test

Abstract

The utility model relates to an axle fatigue test pressing frame structure not easy to shift, which comprises a pressing frame, a pulse head presses an axle through the pressing frame, the pressing frame is provided with a pulse head limiting hole, and the pulse head is arranged in the pulse head limiting hole in a penetrating manner and is pressed on the pressing frame. The pressing frame is connected with a pulse head limiting plate, and the pulse head limiting hole is formed in the pulse head limiting plate. According to the pressing frame structure for the axle fatigue test, the relative position between the pulse head and the axle is not prone to shifting, and the problem that when an existing axle fatigue test device detects different axles, the consistency of connecting points of the pulse head and the axle is poor is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to axle production technical field, concretely relates to a kind of pressing frame structure for axle fatigue test not prone to displacement. BACKGROUND

[0002] Axle is a component on automobile, including axle rod body and main pin hole being arranged at the both ends of axle rod body, main pin hole is inclined hole and lower end surface is inclined surface, two support positions are provided on axle, steel plate supporting frame is supported on support position during use, so that frame is supported on axle. In order to improve the labor-saving property when steering, the intersection point of the axis of main pin hole with ground is located on the intersection line of the center surface of wheel with ground, which is optimal. In order to ensure axle quality, fatigue test needs to be carried out before axle is shipped, and only when protection requirement is met, axle can be shipped. Fatigue test is completed by fatigue test device. The patent document with Chinese patent number 2021107853467 discloses an existing axle fatigue test device. The existing axle fatigue test device has the following deficiencies: position deviation is prone to occur between pulse head and axle. SUMMARY

[0003] The utility model aims at providing a kind of pressing frame structure for axle fatigue test not prone to displacement between pulse head and axle, solve the problem of poor consistency of the connection point of pulse head and axle when different axle is detected by existing axle fatigue test device.

[0004] The above technical problem is solved by the following technical scheme: a kind of pressing frame structure for axle fatigue test not prone to displacement, characterized by, including pressing frame, the pulse head is pressed on the axle by the pressing frame, the pressing frame is equipped with pulse head limiting hole, the pulse head is arranged in the pulse head limiting hole and is pressed on the pressing frame, the pressing frame is connected with pulse head limiting plate, and the pulse head limiting hole is arranged on the pulse head limiting plate. It can avoid the misalignment between pulse head and axle, and improve the reliability during test. It is convenient to set pulse head limiting hole, and it can be easily replaced when pulse head limiting hole is damaged.

[0005] As a preferred, the pulse head limiting plate and the pressing frame can be detachably connected together. It is convenient to replace

[0006] As a preferred, the axle is equipped with two support positions for supporting frame, the pressing frame is equipped with two supporting feet, and the two supporting feet correspondingly support two support positions. It can make the stress point during test be the actual stress point during use of axle, so as to improve the accuracy of test data.

[0007] As preferred, the support leg comprises a support leg lower section and a support leg upper section, the support leg lower section is supported on the support position, the support leg upper section is movably supported on the support leg lower section, and the support leg upper section is connected with the pressing frame.

[0008] As preferred, the front and rear sides of the axle are provided with weight reduction grooves, the support leg lower section is provided with two limiting ears downwardly protruding from the support leg lower section, the axle is arranged between the two limiting ears, and a support leg fixing bolt is connected to the limiting ears and tightly arranged in the weight reduction groove.

[0009] As preferred, the support leg upper section is supported on the support leg lower section through a support roller, the support roller is parallel to the rotating shaft, and a clearance is arranged between the support leg upper section and the support leg lower section.

[0010] As preferred, the upper end surface of the support leg lower section is provided with a groove, and the support roller is arranged in the groove.

[0011] As preferred, two limiting rods are threadedly connected to the support leg lower section and arranged on the two sides of the support roller in the radial direction, a roller limiting block is rotationally connected to the end of the limiting rod facing the support roller, the lower end of the roller limiting block abuts against the bottom surface of the groove, and the upper end of the roller limiting block protrudes from the axis of the support roller.

[0012] As preferred, the limiting rod is threadedly connected to a limiting rod connecting nut, and the limiting rod connecting nut is fixedly connected to the support leg lower section.

[0013] As preferred, the roller limiting block is provided with a limiting rod connecting hole, the inner end of the limiting rod connecting hole is provided with a large-diameter section, and the limiting rod is connected to a connecting hook head arranged in the large-diameter section and used for hooking the overlapping section.

[0014] The present application has the advantages that the axle is less damaged, the equipment is less damaged, and the position relationship between the connecting point and the support point of the axle and the equipment is consistent with the connecting relationship between the axle and the wheel during use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1The use state schematic view of the utility model;

[0016] Figure 2 For Figure 1 The local enlarged view of A at the place of

[0017] Figure 3 For Figure 2 The local enlarged view of B at the place of

[0018] Figure 4 For Figure 1 The local enlarged view of C at the place of

[0019] In the figure: axle 1, pulse head 2, fixed seat 3, pressing frame 53, support position 54, support foot 55, support foot lower section 56, support foot upper section 57, weight reduction groove 58, limit lug 59, support foot fixing bolt 60, support roller 61, avoidance gap 62, groove 63, limit rod 64, roller limit block 65, limit rod connecting nut 66, connecting hook head 67, pulse head limit hole 68, pulse head limit plate 69, limit plate connecting bolt 70. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Referring to Figures 1 to 4 A pressing frame structure for axle fatigue test not prone to displacement comprises an axle fixing frame and a pulse head 2 for repeatedly pressing the axle 1 fixed by the axle fixing frame. The axle fixing frame comprises two fixed seats 3 for one-to-one fixing of two ends of the axle.

[0022] The pressing frame 53 is provided with two supporting feet 55 corresponding to the two supporting positions, and the pulse head is pressed on the pressing frame. The supporting foot comprises a lower supporting foot segment 56 and an upper supporting foot segment 57. The lower supporting foot segment is supported on the supporting position, the upper supporting foot segment is movably supported on the lower supporting foot segment, and the upper supporting foot segment is connected with the pressing frame. The front and rear sides of the axle are provided with weight reduction grooves 58, the lower supporting foot segment is connected with two limiting ears 59 which protrude downward beyond the lower supporting foot segment through connecting ears and connecting bolts 6, the axle is arranged between the two limiting ears, and the limiting ears are connected with supporting foot fixing bolts 60 which are tightly arranged in the weight reduction grooves. The upper supporting foot segment is supported on the lower supporting foot segment through supporting rollers 61 which are parallel to the rotating shaft, and a clearance 62 is arranged between the upper supporting foot segment and the lower supporting foot segment. The upper end surface of the lower supporting foot segment is provided with a groove 63 in which the supporting roller is arranged. Two limiting rods 64 are threadedly connected to the lower supporting foot segment and located on the two sides of the supporting roller in the radial direction. The end of the limiting rod which faces the supporting roller is rotatably connected with a roller limiting block 65, the lower end of the roller limiting block abuts against the bottom surface of the groove, and the upper end of the roller limiting block protrudes beyond the axis of the supporting roller. The limiting rod is threadedly connected with a limiting rod connecting nut 66 which is fixedly connected with the lower supporting foot segment. The roller limiting block is provided with a limiting rod connecting hole, the inner end of the limiting rod connecting hole is provided with a large-diameter segment, and the limiting rod is connected with a connecting hook head 67 which is arranged in the large-diameter segment and used for hooking the overlapping segment. The pressing frame is provided with a pulse head limiting hole 68 in which the pulse head is arranged to press on the pressing frame. The pressing frame is connected with a pulse head limiting plate 69, and the pulse head limiting hole is arranged on the pulse head limiting plate. The pulse head limiting plate and the pressing frame are detachably connected together, and are specifically connected together through limiting plate connecting bolts 70.

Claims

1. A pressing frame structure for axle fatigue testing that is not easily displaced, characterized in that: The pressing frame is provided with a pulse head limiting hole, the pulse head is arranged in the pulse head limiting hole and pressed on the pressing frame, and the pulse head limiting plate is connected to the pressing frame.

2. The press frame structure for a non-displacement fatigue test of an axle according to claim 1, wherein The pulse head limiting plate and the pressing frame are detachably connected together.

3. The press structure for a displacement axle fatigue test of claim 1, wherein The axle is provided with two support positions for supporting the frame, and the pressing frame is provided with two support feet which are correspondingly supported on the two support positions.

4. The press frame structure for a non-displacement fatigue test of an axle according to claim 3, wherein The support foot comprises a lower support foot and an upper support foot, the lower support foot is supported on the support position, the upper support foot is movably supported on the lower support foot, and the upper support foot is connected to the pressing frame.

5. The press frame structure for a non-displacement fatigue test of an axle according to claim 4, wherein The axle is provided with two support positions for supporting the frame, and the pressing frame is provided with two support feet which are correspondingly supported on the two support positions.

6. The press structure for a non-displacement fatigue test of an axle according to claim 4 or 5, wherein The support foot comprises a lower support foot and an upper support foot, the lower support foot is supported on the support position, the upper support foot is movably supported on the lower support foot, and the upper support foot is connected to the pressing frame.

7. The press frame structure for a non-displacement fatigue test of an axle according to claim 6, wherein The axle is provided with two support positions for supporting the frame, and the pressing frame is provided with two support feet which are correspondingly supported on the two support positions.

8. The press frame structure for a non-displacement fatigue test of an axle according to claim 6, wherein The support foot comprises a lower support foot and an upper support foot, the lower support foot is supported on the support position, the upper support foot is movably supported on the lower support foot, and the upper support foot is connected to the pressing frame.

9. The press frame structure for a non-displacement fatigue test of an axle according to claim 8, wherein The support foot comprises a lower support foot and an upper support foot, the lower support foot is supported on the support position, the upper support foot is movably supported on the lower support foot, and the upper support foot is connected to the pressing frame.

10. The press frame structure for a non-displacement fatigue test of an axle according to claim 8, wherein The support foot comprises a lower support foot and an upper support foot, the lower support foot is supported on the support position, the upper support foot is movably supported on the lower support foot, and the upper support foot is connected to the pressing frame. The support foot comprises a lower support foot and an upper support foot, the lower support foot is supported on the support position, the upper support foot is movably supported on the lower support foot, and the upper support foot is connected to the pressing frame. The support foot comprises a lower support foot and an upper support foot, the lower support foot is supported on the support position, the upper support foot is movably supported on the lower support foot, and the upper support foot is connected to the pressing frame. The support foot comprises a lower support foot and an upper support foot, the lower support foot is supported on the support position, the upper support foot is movably supported on the lower support foot, and the upper support foot is connected to the pressing frame.

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