Detection device for variable stiffness brake spring of engine

Abstract

The utility model relates to the technical field of detection equipment, in particular to a detection device for a variable stiffness brake spring of an engine, which comprises a base, the upper surface of the base is fixedly connected with a lower seat, and the upper surface of the lower seat is provided with a detection device; the detection device comprises a center rod, the outer arc surface of the center rod is slidably connected with an upper lantern ring, the outer arc surface of the upper lantern ring is fixedly connected with a transverse rod, the upper surface of the upper lantern ring is provided with a first sliding groove, the upper lantern ring is provided with a second sliding groove, a third sliding groove and a fourth sliding groove in a surrounding mode, and the second sliding groove is fixedly connected with the transverse rod. According to the utility model, through mutual cooperation of the center rod, the upper sleeve ring, the upper seat and the sliding rods, it can be ensured that the aperture size of the upper seat is adjusted according to springs of different sizes when the springs are detected, different springs can be adjusted, the detection precision is improved, and the detection precision is improved. The upper lantern ring can slide on the center rod, and the elastic fatigue of the spring can be tested.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a detection device for an engine variable-rigidity brake spring. Background Art

[0002] After commercial vehicle brake springs are produced, they need to be tested, especially the curvature of the end rings needs to be measured to meet certain standard requirements.

[0003] After searching, a commercial vehicle brake spring end ring arc and flatness detection device (202021010055.8) is disclosed, including a base, a lower seat is fixed on the end surface of the base, a vertically arranged center rod is provided on the top of the lower seat, and a movable coaxial structure is provided on the top of the center rod. The utility model can solve the shortcomings of the prior art, facilitate detection, and improve the detection efficiency of the staff.

[0004] However, since the device cannot adjust the distance between the upper seat and the collar during the detection process, it cannot detect springs of different sizes, so there are many inconveniences in the detection process. In view of this, we propose a detection device for engine variable stiffness brake springs. Utility Model Content

[0005] The utility model aims to provide a detection device for an engine variable-rigidity brake spring, which solves the above-mentioned problem.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detection device for an engine variable-rigidity brake spring, comprising a base, the upper surface of the base is fixedly connected to a lower seat, and the upper surface of the lower seat is provided with a detection device; the detection device comprises: a center rod, the outer arc surface of the center rod is slidably connected to an upper ring, the outer arc surface of the upper ring is fixedly connected to a cross bar, the upper surface of the upper ring is provided with a first slide groove, the upper ring is surrounded by a second slide groove, a third slide groove and a fourth slide groove, the inner surface of the first slide groove is slidably connected to a first slide rod, the inner surface of the second slide groove is slidably connected to a second slide rod, the inner surface of the third slide groove is slidably connected to a third slide rod, the inner surface of the fourth slide groove is slidably connected to a fourth slide rod, and the surfaces of the first slide rod, the second slide rod, the third slide rod and the fourth slide rod are all fixedly connected to the upper seat.

[0007] Preferably, a cross-shaped movable groove is opened on the lower surface of the central rod, and the length and width of the cross-shaped movable groove are the same as those of the first sliding groove, the second sliding groove, the third sliding groove and the fourth sliding groove.

[0008] Preferably, a first circular clamping hole is formed on the upper surface of the center rod, the first circular clamping hole is connected to the cross-shaped movable groove, and a clamping rod is slidably connected to the inner surface of the first circular clamping hole.

[0009] Preferably, the upper surface of the first sliding rod is provided with second circular clamping holes in a linear array, and the diameter of the second circular clamping holes is the same as the diameter of the first circular clamping holes.

[0010] Preferably, the upper surface of the second sliding rod is provided with third circular clamping holes in a linear array, and the caliber of the third circular clamping holes is the same as the caliber of the first circular clamping holes.

[0011] Preferably, fourth circular clamping holes are provided on the upper surface of the third sliding rod in a linear array, and the diameter of the fourth circular clamping holes is the same as the diameter of the first circular clamping holes.

[0012] Preferably, fifth circular clamping holes are provided on the upper surface of the fourth sliding rod in a linear array, and the diameter of the fifth circular clamping holes is the same as the diameter of the first circular clamping holes.

[0013] By means of the above technical solution, the utility model provides a detection device for engine variable stiffness brake spring. It has at least the following beneficial effects:

[0014] (1) The utility model can ensure that when testing the spring, the caliber of the upper seat can be adjusted according to springs of different sizes by cooperating with each other through the central rod, the upper ring, the upper seat and the sliding rod. Different springs can be adjusted, and the upper ring can slide on the central rod to test the elastic fatigue of the spring.

[0015] (2) The utility model provides the first circular card hole, the second circular card hole, the third circular card hole, the fourth circular card hole, the fifth circular card hole and the mutual cooperation of the card rod. When the upper seat is adjusted, the card rod can be inserted into the first circular card hole to limit the sliding rod at the same time, which is easy to operate and ensures that the detection device is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of one side of the detection device in the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the other side of the detection device in the utility model;

[0020] Figure 4 It is a schematic structural diagram of the positional relationship between the cross-shaped movable groove and the first circular clamping hole in the utility model.

[0021] In the figure: 1, base; 2, lower seat; 3, detection device; 31, center rod; 32, upper ring; 33, cross rod; 34, first slide groove; 35, second slide groove; 36, third slide groove; 37, fourth slide groove; 38, first slide rod; 39, second slide rod; 310, third slide rod; 311, fourth slide rod; 312, upper seat; 4, cross-shaped movable groove; 5, clamping rod; 6, first circular clamping hole; 7, second circular clamping hole; 8, third circular clamping hole; 9, fourth circular clamping hole; 10, fifth circular clamping hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1-3The utility model provides a detection device for an engine variable stiffness brake spring, including a base 1, a lower seat 2 is fixedly connected to the upper surface of the base 1, and a detection device 3 is arranged on the upper surface of the lower seat 2; the detection device 3 includes: a central rod 31, an upper ring 32 is slidably connected to the outer arc surface of the central rod 31, a cross bar 33 is fixedly connected to the outer arc surface of the upper ring 32, a first slide groove 34 is provided on the upper surface of the upper ring 32, a second slide groove 35, a third slide groove 36 and a fourth slide groove 37 are provided around the upper ring 32, and the slide grooves provided on the upper ring 32 are the first slide groove 34, the second slide groove 35, the third slide groove 36 and the fourth slide groove 37 from top to bottom, and the four slide grooves can effectively ensure that the slide rod can be inserted into the slide groove, and the upper seat 312 can be adjusted, so that the adjustment of the upper seat 312 is more convenient, the first The inner surface of the slide groove 34 is slidably connected with the first slide bar 38, the inner surface of the second slide groove 35 is slidably connected with the second slide bar 39, the inner surface of the third slide groove 36 is slidably connected with the third slide bar 310, and the inner surface of the fourth slide groove 37 is slidably connected with the fourth slide bar 311. The surfaces of the first slide bar 38, the second slide bar 39, the third slide bar 310 and the fourth slide bar 311 are all fixedly connected with the upper seat 312. A cross-shaped movable groove 4 is provided on the lower surface of the center rod 31. By providing the cross-shaped movable groove 4 on the lower surface of the center rod 31, the ring can drive the slide bar to slide in the center rod 31, which facilitates the adjustment of the upper seat 312 and can test the elastic fatigue of the spring. The length and width of the cross-shaped movable groove 4 are the same as those of the first slide groove 34, the second slide groove 35, the third slide groove 36 and the fourth slide groove 37.

[0025] In this embodiment, by cooperating with the central rod 31, the upper ring 32, the upper seat 312 and a variety of sliding rods, it is possible to adjust the caliber of the upper seat 312 for springs of different sizes when testing the spring. At the same time, the upper ring 32 can drive the upper seat 312 to slide on the central rod 31 to test the elastic fatigue of the spring.

[0026] Embodiment 2

[0027] See also Figure 1-4On the basis of the first embodiment, the utility model provides a technical solution: preferably, a first circular clamping hole 6 is provided on the upper surface of the center rod 31, and the first circular clamping hole 6 is provided on the upper surface of the center rod 31 to facilitate the insertion of the clamping rod 5, and the length of the clamping rod 5 is the same as the total length of the center rod 31, the first circular clamping hole 6 is connected with the cross-shaped movable groove 4, and the inner surface of the first circular clamping hole 6 is slidably connected with the clamping rod 5, and the upper surface of the first sliding rod 38 is provided with second circular clamping holes 7 in a linear array, and the diameter of the second circular clamping holes 7 is the same as that of the first circular clamping holes 6, and the upper surface of the second sliding rod 39 is provided with third circular clamping holes 8 in a linear array, and the diameter of the third circular clamping holes 8 is the same as that of the first circular clamping holes 6. The first circular card holes 6 have the same caliber, the upper surface of the third slide bar 310 is provided with fourth circular card holes 9 in a linear array, the caliber of the fourth circular card holes 9 is the same as the caliber of the first circular card holes 6, the upper surface of the fourth slide bar 311 is provided with fifth circular card holes 10 in a linear array, the caliber of the fifth circular card holes 10 is the same as the caliber of the first circular card hole 6, by making the calibers of the first circular card holes 6, the second circular card holes 7, the third circular card holes 8, the fourth circular card holes 9 and the fifth circular card holes 10 equal, it can effectively ensure that one card rod 5 can limit the first slide bar 38, the second slide bar 39, the third slide bar 310 and the fourth slide bar 311 at the same time, which is convenient and quick.

[0028] In this embodiment, by setting the first circular card hole 6, the second circular card hole 7, the third circular card hole 8, the fourth circular card hole 9, the fifth circular card hole 10 and the card rod 5, the upper seat 312 can be quickly limited after the upper seat 312 is adjusted, making the entire device more stable when testing the spring.

[0029] Working principle: when testing the spring, according to the size of the spring, pull out the upper seat 312. In the process of pulling out the upper seat 312, the first slide bar 38, the second slide bar 39, the third slide bar 310, and the fourth slide bar 311 will slide in the first slide groove 34, the second slide groove 35, the third slide groove 36, and the fourth slide groove 37 respectively. After the upper seat 312 is adjusted, the spring is placed between the upper seat 312 and the lower seat 2, and the upper seat 312 is readjusted. After it is in a state of being tightly attached to the spring, the clamping rod 5 is inserted into the first circular clamping hole 6, and then inserted to the bottom of the center rod 31. While inserting into the bottom of the center rod 31, it will pass through the second circular clamping hole 7, the third circular clamping hole 8, the fourth circular clamping hole 9 and the fifth circular clamping hole 10, thereby realizing the limiting function of the upper seat 312, and moving the upper ring 32 up and down. When the upper ring 32 moves, it will drive the cross bar 33, the upper seat 312 and the four groups of sliding rods to move, so as to detect the spring.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detection device for an engine variable stiffness brake spring, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a lower seat (2), and the upper surface of the lower seat (2) is provided with a detection device (3); The detection device (3) comprises: a central rod (31), an upper ring (32) is slidably connected to the outer arc surface of the central rod (31), a cross bar (33) is fixedly connected to the outer arc surface of the upper ring (32), a first slide groove (34) is provided on the upper surface of the upper ring (32), a second slide groove (35), a third slide groove (36) and a fourth slide groove (37) are provided around the upper ring (32), a first slide rod (38) is slidably connected to the inner surface of the first slide groove (34), a second slide rod (39) is slidably connected to the inner surface of the second slide groove (35), a third slide rod (310) is slidably connected to the inner surface of the third slide groove (36), a fourth slide rod (311) is slidably connected to the inner surface of the fourth slide groove (37), and the surfaces of the first slide rod (38), the second slide rod (39), the third slide rod (310) and the fourth slide rod (311) are all fixedly connected to an upper seat (312).

2. The detection device for engine variable stiffness brake spring according to claim 1, characterized in that: A cross-shaped movable groove (4) is provided on the lower surface of the central rod (31), and the length and width of the cross-shaped movable groove (4) are the same as those of the first sliding groove (34), the second sliding groove (35), the third sliding groove (36) and the fourth sliding groove (37).

3. The detection device for engine variable stiffness brake spring according to claim 2, characterized in that: A first circular clamping hole (6) is provided on the upper surface of the center rod (31), the first circular clamping hole (6) is connected to the cross-shaped movable groove (4), and a clamping rod (5) is slidably connected to the inner surface of the first circular clamping hole (6).

4. The detection device for engine variable stiffness brake spring according to claim 3, characterized in that: The upper surface of the first sliding rod (38) is provided with second circular clamping holes (7) in a linear array, and the caliber of the second circular clamping holes (7) is the same as the caliber of the first circular clamping holes (6).

5. The detection device for engine variable stiffness brake spring according to claim 3, characterized in that: The upper surface of the second sliding rod (39) is provided with third circular clamping holes (8) in a linear array, and the caliber of the third circular clamping holes (8) is the same as the caliber of the first circular clamping holes (6).

6. The detection device for engine variable stiffness brake spring according to claim 3, characterized in that: The upper surface of the third sliding rod (310) is provided with fourth circular clamping holes (9) in a linear array, and the caliber of the fourth circular clamping holes (9) is the same as the caliber of the first circular clamping holes (6).

7. The detection device for engine variable stiffness brake spring according to claim 3, characterized in that: The upper surface of the fourth sliding rod (311) is provided with fifth circular clamping holes (10) in a linear array, and the caliber of the fifth circular clamping holes (10) is the same as the caliber of the first circular clamping holes (6).

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