Axial positioning cabin section sleeving structure

Abstract

The utility model relates to a cabin section sleeving structure, in particular to an axially-positioned cabin section sleeving structure. The device is composed of an inner sleeve cabin, an outer sleeve cabin, a positioning lug, a positioning pin and a positioning pin hole, the positioning lug is designed on the inner side of the sleeving face of the front sleeve cabin and the outer sleeve cabin, the axial positioning pin hole is designed in the lug, and the positioning pin is assembled on the positioning lug; the inner sleeve cabin positioning pin hole is in interference fit with the positioning pin so as to guarantee the assembly precision between the positioning pin and the cabin body, and the positioning pin is in small-gap precision fit with the outer sleeve cabin positioning pin hole. According to the utility model, the coaxiality between the sleeved cabins can be ensured, the requirement on the processing precision of the sleeved surfaces of the cabins is low, the processing is easy, and compared with disc type connection, the cabin connecting area of the structure is light in weight and small in occupied space.

Description

Technical Field

[0001] This utility model relates to a compartment sleeve structure, and more particularly to an axially positioned compartment sleeve structure. Background Technology

[0002] The interlocking structure is a commonly used form of compartment connection, which occupies less internal space and is lightweight. Interlocking compartments often employ circumferential positioning (e.g., utility model patent: A compartment interlocking positioning structure, patent number 202122706367.3). In the axial positioning structure of this patent, the coaxiality deviation between the front and outer compartments is ensured by the dimensional accuracy of the interlocking surfaces of the two compartments. A certain gap must be designed between the interlocking surfaces of the front and outer compartments, requiring high machining accuracy; otherwise, assembly difficulties will result. Utility Model Content

[0003] Purpose of the utility model: In view of the above-mentioned technical situation, this utility model designs and provides an axially positioned compartment sleeve structure. The axially assembled positioning pin can solve the problem of large coaxiality deviation between the sleeved compartments, and can also reduce the requirements for the machining accuracy of the front outer compartment sleeve surface.

[0004] Technical solution: To achieve the above-mentioned utility model objectives, an axially positioned compartment sleeve structure is proposed, consisting of an inner sleeve, an outer sleeve, positioning lugs, positioning pins, and positioning pin holes. Positioning lugs are designed on the inner side of the sleeve surfaces of the front and outer sleeves, and axial positioning pin holes are designed on the lugs. The positioning pins are assembled on the positioning lugs. The positioning pin holes of the inner sleeve and the positioning pins adopt an interference fit to ensure the assembly accuracy between the positioning pins and the sleeve body. The positioning pins and the positioning pin holes of the outer sleeve adopt a small clearance precision fit.

[0005] Furthermore, to control torsional deviation, two sets of locating pins can be installed.

[0006] Furthermore, the positioning pin can be designed as a rectangular pin or an oblong pin, or other irregularly shaped pin.

[0007] Furthermore, assembly guide lines are provided on the outer surfaces of both the inner and outer compartments.

[0008] Furthermore, the inner and outer compartments have a recessed step at their mating surfaces, with the outer compartment's end face fitting snugly onto the recessed step. Several connection holes are provided on the recessed step of the inner compartment.

[0009] Furthermore, the positioning lugs of the inner casing adopt a semi-circular boss reinforcement structure.

[0010] Technical advantages: The heading positioning compartment socket structure provided by this utility model can ensure the coaxiality between the socketed compartments, has low requirements for the machining accuracy of the compartment socket surface, and is easy to process. Compared with the disc connection, the compartment connection area of ​​this structure is lightweight and occupies little space. Attached Figure Description

[0011] Figure 1 Assembly drawing of the axially positioned compartment sleeve structure;

[0012] Figure 2 A schematic diagram of a sleeve structure for axial positioning;

[0013] Figure 3 Assembly drawing of the axially positioned compartment sleeve structure;

[0014] Among them, 1 is the inner compartment, 2 is the outer compartment, 3 is the positioning pin, 4 is the inner compartment positioning lug, 5 is the inner compartment positioning pin hole, 6 is the outer compartment positioning lug, 7 is the outer compartment positioning pin hole, and 8 is the assembly guide line. Detailed Implementation

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings or specific implementation examples. It should be noted that some (but not all) of the disclosed examples are shown in the drawings. In fact, many different examples can be described, and these examples should not be construed as limited to the examples set forth herein. Rather, these examples are described to better demonstrate the positive effects of this utility model, and all aspects not detailed herein are considered to be well-known or conventional techniques in the art.

[0016] See appendix Figures 1 to 3 This utility model specifically designs an axially positioned compartment sleeve structure, which consists of an inner sleeve 1, an outer sleeve 2, a positioning pin 3, an inner sleeve positioning lug 4, an inner sleeve positioning pin hole 5, an outer sleeve positioning lug 6, and an outer sleeve positioning pin hole 7. Positioning lugs are designed on the inner side of the front and outer sleeve sleeve surfaces, and axial positioning pin holes are designed on the lugs. The positioning pin is assembled on the positioning lugs. The positioning pin hole of the inner sleeve and the positioning pin adopt an interference fit to ensure the assembly accuracy between the positioning pin and the compartment. The positioning pin and the positioning pin hole of the outer sleeve adopt a small clearance precision fit.

[0017] In the specific design example, the mating surfaces of the inner chamber 1 and the outer chamber 2 are provided with recessed steps, and the end face of the outer chamber 2 fits precisely on the recessed steps. Several connection holes are provided on the recessed steps of the inner chamber 1. The positioning lugs 4 of the inner chamber adopt a semi-circular boss reinforcement structure to ensure sufficient connection strength.

[0018] Example 1: Refer to as follows Figure 1 , Figure 2 , Figure 3The positioning structure consists of an inner compartment 1, an outer compartment 2, and positioning pins. The inner compartment 1 is designed with an inner compartment positioning lug 4, and the inner compartment positioning lug 4 has an inner compartment positioning pin hole 5. The outer compartment 2 is designed with an outer compartment positioning lug 6, and the inner compartment positioning lug 6 has an inner compartment positioning pin hole 7. The outer surface of the compartment is engraved with assembly guide lines 8 to facilitate assembly guidance.

[0019] The locating pin 3 has an interference fit with the locating pin hole 7 of the outer casing and a small clearance fit with the locating pin hole 5 of the inner casing.

[0020] Positioning lugs 4 and 6 can be integrally formed with the cabin body, or they can be riveted to the cabin body or connected by other mechanical connection methods.

[0021] Two sets of locating pins can be installed between a set of interlocking compartments, or the locating pins can be designed as rectangular pins or oblong pins or other irregularly shaped pins.

[0022] Assembly process: First, insert the positioning pin 3 into the positioning pin hole 7 of the outer jacket compartment 2 (this step is only required for the first assembly); Second, align the engraved lines 8 on the inner jacket compartment 1 and the outer jacket compartment 2, and push them in to complete the docking, so that the positioning pin 3 is installed in the positioning pin hole 5 of the outer jacket compartment 1, thus completing the assembly.

[0023] Disassembly process: Pull out the outer compartment 2 to complete the disassembly.

[0024] The above specific embodiments or examples are only used to explain the technical solutions of this utility model and are not intended to limit this application. Parts not described in detail are considered to be conventional technical means or common knowledge in the field. It can be understood by those skilled in the art that, based on the design concept of this application, adaptive modifications can be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications, equivalent substitutions, and adaptive improvements do not depart from the technical essence of this utility model and should all be covered within the protection scope of this application.

Claims

1. A compartment sleeve structure for axial positioning, characterized in that, It consists of an inner chamber, an outer chamber, positioning lugs, positioning pins, and positioning pin holes. Positioning lugs are designed on the inner side of the front and outer chamber mating surfaces, and axial positioning pin holes are designed on the lugs. The positioning pins are assembled on the positioning lugs. The positioning pin holes of the inner chamber and the positioning pins adopt an interference fit to ensure the assembly accuracy between the positioning pins and the chamber body. The positioning pins and the positioning pin holes of the outer chamber adopt a small clearance precision fit.

2. The axially positioned compartment sleeve structure as described in claim 1, characterized in that, It is equipped with two sets of positioning pins.

3. The axially positioned compartment sleeve structure as described in claim 2, characterized in that, The positioning pin is designed as a rectangular pin or an oblong pin.

4. The axially positioned compartment sleeve structure as described in claim 1, characterized in that, Both the inner and outer compartments have assembly guide lines on their outer surfaces.

5. The axially positioned compartment sleeve structure as described in claim 1, characterized in that, The inner and outer compartments have a recessed step at their mating surfaces, and the outer compartment's end face fits perfectly into the recessed step. Several connection holes are provided on the recessed step of the inner compartment.

6. The axially positioned compartment sleeve structure as described in claim 1, characterized in that, The inner casing positioning lugs adopt a semi-circular boss reinforcement structure.

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