Spring pull rod axial clearance detection device

Abstract

The utility model belongs to the technical field of product inspection, and particularly relates to a spring pull rod axial clearance detection device which comprises a supporting and fixing platform, a dial indicator support, a dial indicator, a gravity sliding block supporting piece and a gravity sliding block. A tested spring pull rod is naturally placed on the spring pull rod supporting and fixing platform (1). The dial indicator (3) is placed on the dial indicator bracket (2), and the head of the dial indicator (3) is in axial contact with the handle joint of the spring pull rod; the gravity sliding block (4) is in contact with the inclined surface of the gravity sliding block supporting piece (3); and the gravity sliding block (4) is in contact with one end of the joint with the handle in the spring pull rod (6).

Description

TECHNICAL FIELD

[0001] The utility model belongs to product inspection technical field, especially relate to a spring pull rod axial clearance detection device. BACKGROUND

[0002] The GDS-1 type spring pull rod is composed of a spring assembly, a shell sleeve, a rod end, an end cover, a handle joint and a bearing, and is mainly connected with each other through threads.The spring assembly is composed of a large spring and a small spring. Figure 1 As shown in the figure.

[0003] The GDS-1 type spring pull rod is a finished product matched with the QDS-1 type eight-degree security system, and is installed at the lower part of a control system control box.When the eight-degree security system is in an anchoring state, the component provides an anchoring force feeling, and the anchoring force is within the feeling range of the force that the pilot can bear, so as to prevent the autopilot from further reducing the total distance and play a role in total distance security.

[0004] According to the assembly and manufacturing requirements of the spring pull rod, the axial push-pull clearance of the handle joint of the spring pull rod has strict requirements after the product is assembled.However, the axial push-pull clearance cannot be directly measured after the spring pull rod is assembled.At present, there is no related method and device for measuring the axial clearance of the spring pull rod, which brings great inconvenience to the comprehensive judgment of the acceptance of the spring pull rod. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a spring pull rod axial clearance detection device, which can quickly and stably apply axial thrust to the spring pull rod, and provide a more actual comprehensive judgment basis according to the axial clearance measured under the condition that the spring pull rod axially bears stable and accurate thrust.

[0006] TECHNICAL SCHEME

[0007] A spring pull rod axial clearance detection device comprises a support fixing platform, a dial indicator support, a dial indicator, a gravity sliding block support and a gravity sliding block.

[0008] The measured spring pull rod is naturally placed on the spring pull rod support fixing platform 1; the dial indicator 3 is placed on the dial indicator support 2, the dial indicator 3 head is axially in contact with the handle joint of the spring pull rod, the gravity sliding block 4 is in contact with the inclined surface of the gravity sliding block support 3, and the gravity sliding block 4 is in contact with one end of the handle joint in the spring pull rod 6.

[0009] Further, the support fixing platform 1 is a groove type, the groove size is consistent with the size of the spring pull rod shell sleeve, the spring pull rod is supported and the axial movement thereof is limited.

[0010] Further, the dial indicator support is sequentially composed of a rectangular plate, a column and a slotted rectangular block from bottom to top.

[0011] Further, the gravity sliding block support is a right triangular prism, one of the right angles of which is placed on the ground.

[0012] Further, the gravity sliding block is a cylinder, the lower end of which is beveled to form an elliptical surface matching the inclined surface of the right triangular prism.

[0013] Further, the dial indicator is placed in the slot of the dial indicator support.

[0014] In summary, the beneficial effects of the present application are as follows:

[0015] 1. Method science: by measuring the axial clearance of the spring rod under the action of accurate and stable axial thrust, the axial clearance of the spring rod without triggering the built-in spring is effectively obtained, so the measurement result has strong practicality;

[0016] 2. Convenient operation: the axial thrust device is convenient to operate, the detection method is fast and efficient, and the product axial clearance detection can be quickly and accurately realized.

[0017] 3. According to the characteristics of the spring rod, a device for detecting the axial clearance of the spring rod is proposed, which can quickly and accurately apply axial force and is accurate and reliable, so that the detection basis provided by the comprehensive evaluation of the spring rod is more reasonable.

[0018] 4. A method for detecting the axial clearance of the spring rod is proposed, which is simple and convenient to operate, and the measurement value is representative, which can effectively represent the compliance of the axial clearance of the spring rod, and provide reliable data support for the comprehensive evaluation of the spring rod. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the spring rod;

[0020] Figure 2 It is a schematic diagram of the detection device;

[0021] Figure 3 It is a schematic diagram of the support and fixing platform;

[0022] Figure 4 It is a schematic diagram of the dial indicator support;

[0023] Figure 5 It is a schematic diagram of the dial indicator;

[0024] Figure 6 It is a schematic diagram of the gravity sliding block;

[0025] Figure 7 It is a schematic diagram of the gravity sliding block support. DETAILED DESCRIPTION

[0026] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.

[0027] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0028] In addition, the terms "mount", "set", "provided with", "connected", "connected", "sleeved" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] A spring pull rod axial gap detection method, the specific circumstances are as follows:

[0030] According to the actual installation situation, when detecting the axial gap of the spring pull rod, it is necessary to apply an axial pushing force to the spring pull rod handle joint, but the spring cannot be triggered to deform. According to the performance parameters of the spring in the spring pull rod, the initial pressure is 5N, so the maximum value of the axial pushing force applied is 5N. During the process of applying an axial pushing force of 0-5N to the spring pull rod handle joint through the axial pushing force loading device, the axial displacement of the spring pull rod handle joint measured by the dial gauge is the axial gap.

[0031] A spring pull rod axial gap detection device, the specific circumstances are as follows:

[0032] The main feature of this device is to apply an accurate and stable pushing force load to the spring pull rod handle joint when measuring the axial gap of the spring pull rod. As shown in Figures 1-7 The device comprises:

[0033] 1, support fixed platform, 2, dial gauge support, 3, dial gauge, 4, gravity slide block support, 5, gravity slide block, 6, spring pull rod.

[0034] The connecting relationship of each component is that the measured spring pull rod is naturally placed on the spring pull rod support fixed platform 1; the dial indicator 3 is placed on the dial indicator support 2, the dial indicator head is placed in axial contact with the handle joint of the spring pull rod; the gravity sliding block 4 is placed in contact with the inclined surface of the gravity sliding block support 3; and the gravity sliding block 4 is placed in contact with one end of the handle joint in the spring pull rod 6.

[0035] The support fixed platform 1 is a groove type, the groove size is consistent with the size of the spring pull rod shell, which mainly serves to support and fix the spring pull rod and cannot move axially.

[0036] The dial indicator support 2 is a support component, which mainly serves to support and fix the dial indicator and cannot move along the axial direction of the spring pull rod.

[0037] The dial indicator 3 is a measuring device, which mainly serves to measure the displacement of the handle joint of the spring pull rod during the axial thrust, and the final displacement is the axial clearance.

[0038] The gravity sliding block support 4 adopts an inclined surface design, the inclined surface angle of which is calculated according to the gravity of the gravity sliding block and the required axial thrust of the spring pull rod, mainly serving to control the sliding direction of the gravity sliding block, so that the gravity sliding block generates a fixed axial thrust on the handle joint.

[0039] The gravity sliding block 5 adopts a cylindrical design and is cut according to the inclined surface angle of the gravity sliding block support 3, which mainly serves to provide a thrust.

[0040] The working condition is that the measured spring pull rod is naturally placed on the spring pull rod support fixed platform 1, fixed by the shape and weight, then a pulling force is applied to the handle joint to make the spring deform, then the pulling force is gradually released, the handle joint of the spring pull rod is extended to the maximum length in the unforced state, then the dial indicator 3 is placed on the dial indicator support, and the dial indicator head is in axial contact with the handle joint in the spring pull rod 6, so that the dial indicator is in a critical working state, then the gravity sliding block 5 is placed on the gravity sliding block support 4, and the joint end of the handle joint of the spring pull rod is pushed against the gravity sliding block 5, so that the gravity sliding block remains stationary. At this time, the spring pull rod connecting shaft is subjected to a stable axial thrust, and the value on the dial indicator is read.

[0041] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A spring rod axial gap detection device characterized by: Comprise: Supporting fixed platform, dial gauge support, dial gauge, gravity slider support, gravity slider; The measured spring rod is placed on the spring rod supporting fixed platform (1); the dial gauge (3) is placed on the dial gauge support (2), the dial gauge (3) head is placed in axial contact with the handle joint of the spring rod; the gravity slider (5) is placed in contact with the inclined surface of the gravity slider support (4); the gravity slider (5) is placed in contact with the handle joint end of the spring rod (6).

2. The apparatus of claim 1, wherein: The supporting fixed platform (1) is a groove type, the groove size is consistent with the spring rod shell size, supporting the spring rod and limiting its axial movement.

3. The apparatus of claim 2, wherein: The dial gauge support is sequentially rectangular plate, column and slotted rectangular block from bottom to top.

4. The apparatus of claim 3, wherein: The gravity slider support is a right triangular prism, one of the right angles is placed on the ground.

5. The apparatus of claim 4, wherein: The gravity slider is a column, the lower end of the column is obliquely cut into an oval surface matched with the inclined surface of the right triangular prism.

6. The apparatus of claim 5, wherein: The dial gauge is placed in the slot of the dial gauge support.

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