Compressor support arm structure integrated with adjusting sleeve and capable of realizing bidirectional tolerance

Abstract

The invention discloses a compressor support arm structure integrated with an adjusting sleeve and capable of achieving bidirectional tolerance, and relates to the technical field of engine research and development. A compressor upper supporting arm, a compressor lower front supporting arm and a compressor lower rear supporting arm are arranged on the outer wall of the air conditioner compressor, an upper supporting arm adjusting sleeve is inserted into a mounting hole of the compressor upper supporting arm, a lower supporting arm adjusting sleeve is inserted into a mounting hole of the compressor lower rear supporting arm, and the lower supporting arm adjusting sleeve limits rotation and is provided with internal threads. A short screw is inserted into the upper support arm adjusting sleeve and then screwed and screwed with a screw hole / nut of the upper support arm compressor support to make up the gap, and a long screw penetrates through the compressor lower front support arm and the lower support arm compressor support and then screwed and screwed with an internal thread of the lower support arm adjusting sleeve to make up the gap. The adjusting sleeves are integrated on the upper supporting arm and the lower supporting arm of the compressor respectively, the installation tolerance in the assembling process of the compressor can be better compatible, the operation space is enlarged through axial nailing, the assembling efficiency and the installing reliability are improved, and the assembling and disassembling difficulty is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of engine research and development, and in particular to a compressor support arm structure with an integrated adjustment sleeve and bidirectional tolerance. Background Art

[0002] Most existing compressor products are installed on the engine through fully independent brackets, resulting in a larger overall margin and lower vehicle adaptability. In addition, vertical nailing requires sufficient space for the wrench, making disassembly and assembly more difficult.

[0003] The present invention greatly reduces the installation margin of the compressor by integrating the adjustment sleeve into the lifting support arm. At the same time, it can also accommodate the combined tolerances generated by the upper and lower support arms being installed on different components. All the mounting screws are screwed in axially from the front end, which helps to reduce the assembly space requirements and assembly difficulty. Summary of the Invention

[0004] In order to address the shortcomings of the background technology, the present invention provides a compressor arm structure with an integrated adjustment sleeve and bidirectional tolerance. By integrating an adjustment sleeve on each of the upper and lower arms of the compressor, it can better be compatible with the installation tolerance during the compressor assembly process. Axial nailing increases the operating space, improves assembly efficiency and installation reliability, and reduces the difficulty of assembly and disassembly.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a compressor support arm structure with an integrated adjustment sleeve and bidirectional tolerance, comprising an air-conditioning compressor, an upper support arm compressor bracket and a lower support arm compressor bracket, wherein the upper support arm compressor bracket is connected to the engine cylinder block, and the lower support arm compressor bracket is connected to the engine oil pan. When the air-conditioning compressor is arranged axially horizontally, a total of three mounting arms are provided on its outer wall, including a compressor upper support arm, a compressor lower front support arm and a compressor lower rear support arm. An upper support arm adjustment sleeve is inserted into the mounting hole of the compressor upper support arm, and the mounting hole of the compressor lower rear support arm is provided. A lower arm adjustment sleeve is inserted into the mounting hole, and the upper arm adjustment sleeve and the lower arm adjustment sleeve are both cylindrical rigid parts, wherein the lower arm adjustment sleeve limits rotation and is processed with an internal thread, and the upper arm adjustment sleeve is inserted axially into the upper arm adjustment sleeve through a short screw, and then screwed and tightened with the screw hole / nut of the upper arm compressor bracket to make up for the gap between the upper arm of the compressor and the upper arm compressor bracket, and a long screw is passed axially through the lower front arm of the compressor and the lower arm compressor bracket, and then screwed and tightened with the internal thread of the lower arm adjustment sleeve to make up for the gap between the lower arm compressor bracket and the lower rear arm of the compressor.

[0006] Furthermore, an annular wide edge is integrally provided on the outer sides of the front ends of the upper support arm adjustment sleeve and the lower support arm adjustment sleeve.

[0007] Furthermore, a plane is processed on the edge of the annular width of the lower arm adjustment sleeve, and an anti-rotation boss is integrally provided at the corresponding position of the lower rear arm of the compressor. The anti-rotation boss contacts the plane to limit the relative rotation of the lower arm adjustment sleeve.

[0008] Furthermore, the air-conditioning compressor and the three mounting arms are integrated into one body, and mounting holes are processed on the outer ends of the three mounting arms.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention arranges a support arm at the front end above the compressor, which is connected to the engine cylinder block through a bracket, and arranges two support arms correspondingly at the front and rear of the lower part of the compressor, which are connected to the oil pan through a bracket, for a total of three-point dual-axis fixation, wherein an adjustment sleeve is integrated in the mounting holes of the upper support arm and the lower rear end support arm respectively, and during the axial screw-in and locking process of the bolt, it can better be compatible with the combined tolerances after assembly of multiple parts during the compressor assembly process, and the two-way adjustment sleeve structure has a more comprehensive effect, solves the problem of axial installation tolerance of the compressor, reduces the risk of abnormal stress fracture of the compressor support arm, and helps to reduce the outer contour of the whole machine to achieve a compact design, improve the adaptability of the whole machine cabin, and axial nailing increases the installation operation space, reduces the number of assembly bolts, reduces the difficulty of assembly and disassembly, and improves assembly efficiency and installation reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the main structure of the compressor support arm structure of the present invention; Figure 2 It is a left-side structural schematic diagram of the compressor support arm structure of the present invention.

[0011] In the figure: 1. Air conditioning compressor; 11. Compressor upper support arm; 12. Upper support arm adjustment sleeve; 13. Compressor lower front support arm; 14. Compressor lower rear support arm; 15. Lower support arm adjustment sleeve; 16. Anti-rotation boss; 2. Upper support arm compressor bracket; 3. Lower support arm compressor bracket. DETAILED DESCRIPTION

[0012] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0013] like Figure 1~Figure 2 As shown, a compressor support arm structure with an integrated adjustment sleeve and bidirectional tolerance includes an air-conditioning compressor 1, an upper support arm compressor bracket 2 and a lower support arm compressor bracket 3.

[0014] Combine Figure 1The figure shows the main structure of the compressor support arm structure of the present invention. For ease of viewing, the upper support arm compressor bracket 2 and the lower support arm compressor bracket 3 are omitted. It can be seen that when the air-conditioning compressor 1 is axially arranged horizontally, its outer wall is provided with three mounting arms for hoisting operation and installation positioning. The three mounting arms are divided into: a compressor upper support arm 11 integrally provided at its top front end, and a compressor lower front support arm 13 and a compressor lower rear support arm 14 integrally provided at its bottom front and rear ends. Mounting holes are machined at the outer ends of the three mounting arms.

[0015] Combine Figure 2 The figure shows the left side view of the compressor support arm structure of the present invention, showing the assembly of the upper support arm compressor bracket 2 and the lower support arm compressor bracket 3. It can be seen that through the design of the three mounting arms, the top of the air conditioning compressor 1 can be connected to the engine cylinder block through the upper support arm compressor bracket 2, and the bottom of the air conditioning compressor 1 can be connected to the engine oil pan through the lower support arm compressor bracket 3, forming a two-point fixation.

[0016] The core technical features of this solution are that an upper arm adjustment sleeve 12, a cylindrical rigid component, is inserted into the mounting hole of the compressor upper arm 11; and a lower arm adjustment sleeve 15, a cylindrical rigid component with an internal thread, is inserted into the mounting hole of the compressor lower rear arm 14. To increase the contact area between the upper and lower arm adjustment sleeves 12, 15 during subsequent assembly, an annular wide edge is integrally provided on the outer front ends of each of the upper and lower arm adjustment sleeves 12, 15. Furthermore, the lower arm adjustment sleeve 15 is restricted from rotation, allowing only axial displacement. An anti-rotation boss 16 is integrally provided at a corresponding position on the compressor lower rear arm 14. A flat surface is machined on the edge of the annular wide edge of the lower arm adjustment sleeve 15, which contacts the anti-rotation boss 16 to restrict relative rotation of the lower arm adjustment sleeve 15.

[0017] During the assembly and positioning of the air-conditioning compressor 1, the upper arm compressor bracket 2 is pre-bolted to the engine cylinder block. Therefore, after the air-conditioning compressor 1 is hoisted into place, there may be a gap between the compressor upper arm 11 and the upper arm compressor bracket 2. At this time, if the two are rigidly fixed with screws, the risk of breakage may increase due to abnormal stress. However, by integrating the upper arm adjustment sleeve 12 into the mounting hole of the compressor upper arm 11, a short screw is used to insert the upper arm adjustment sleeve 12 axially from front to back, and then screw it into the screw hole / nut of the upper arm compressor bracket 2. During the tightening process of the short screw, the screw head will gradually push the upper arm adjustment sleeve 12 backward to press and support it on the upper arm compressor bracket 2, thereby closing the gap between the compressor upper arm 11 and the upper arm compressor bracket 2.

[0018] Similarly, the lower arm compressor bracket 3 is also pre-bolted to the engine oil pan. Therefore, after the air-conditioning compressor 1 is hoisted into place, there may be a gap between the lower arm compressor bracket 3 and the compressor lower front arm 13 and the compressor lower rear arm 14. However, by integrating the lower arm adjustment sleeve 15 into the mounting hole of the compressor lower rear arm 14, a long screw is used to axially pass through the compressor lower front arm 13 and the lower arm compressor bracket 3 from front to back, and then screwed into the internal thread of the lower arm adjustment sleeve 15. During the tightening process of the long screw, since the rotation of the arm adjustment sleeve 15 is restricted, the arm adjustment sleeve 15 will gradually move forward under the action of the thread to press and support the lower arm compressor bracket 3, thereby closing the gap between the lower arm compressor bracket 3 and the compressor lower rear arm 14.

[0019] In summary, during the assembly process of the air-conditioning compressor 1, the upper arm compressor bracket 2 is located behind the upper arm 11 of the compressor, and the rearward tolerance effect is achieved through the upper arm adjustment sleeve 12. The lower arm compressor bracket 3 is clamped between the lower front arm 13 of the compressor and the lower rear arm 14 of the compressor, and the forward tolerance effect is increased through the lower arm adjustment sleeve 15. The two-way adjustment sleeve structure is compatible with the combined tolerance of the top and bottom of the air-conditioning compressor 1 after assembly, thereby avoiding the occurrence of the bracket crushing problem.

[0020] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other configurations without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations coming within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0021] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A compressor support arm structure with an integrated adjustment sleeve and bidirectional tolerance, comprising an air-conditioning compressor (1), an upper support arm compressor bracket (2), and a lower support arm compressor bracket (3), wherein the upper support arm compressor bracket (2) is connected to an engine cylinder block, and the lower support arm compressor bracket (3) is connected to an engine oil pan, characterized in that: The air-conditioning compressor (1) is provided with three mounting arms on its outer wall in an axially horizontally arranged state, including a compressor upper arm (11), a compressor lower front arm (13) and a compressor lower rear arm (14). An upper arm adjustment sleeve (12) is inserted into the mounting hole of the compressor upper arm (11), and a lower arm adjustment sleeve (15) is inserted into the mounting hole of the compressor lower rear arm (14). Both the upper arm adjustment sleeve (12) and the lower arm adjustment sleeve (15) are cylindrical rigid parts, wherein the lower arm adjustment sleeve (1 5) The rotation is restricted and the internal thread is processed. The short screw is inserted into the upper support arm adjustment sleeve (12) along the axial direction, and then the short screw is screwed and tightened with the screw hole / nut of the upper support arm compressor bracket (2) to make up the gap between the compressor upper support arm (11) and the upper support arm compressor bracket (2). The long screw is passed through the compressor lower front support arm (13) and the lower support arm compressor bracket (3) along the axial direction, and then the short screw is screwed and tightened with the internal thread of the lower support arm adjustment sleeve (15) to make up the gap between the lower support arm compressor bracket (3) and the compressor lower rear support arm (14).

2. The compressor support arm structure with integrated adjustment sleeve and bidirectional tolerance according to claim 1, characterized in that: An annular wide edge is integrally provided on the outer sides of the front ends of the upper support arm adjustment sleeve (12) and the lower support arm adjustment sleeve (15).

3. The compressor support arm structure with integrated adjustment sleeve and bidirectional tolerance according to claim 2, characterized in that: A plane is machined on the edge of the annular width of the lower support arm adjustment sleeve (15), and an anti-rotation boss (16) is integrally provided at a corresponding position of the compressor lower rear support arm (14), wherein the anti-rotation boss (16) contacts the plane to limit the relative rotation of the lower support arm adjustment sleeve (15).

4. The compressor support arm structure with integrated adjustment sleeve and bidirectional tolerance according to claim 1, characterized in that: The air-conditioning compressor (1) is integrated with three mounting arms, and mounting holes are machined on the outer ends of the three mounting arms.

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