Internal combustion engine piston pin matched bearing press-fitting equipment

Abstract

The utility model provides an internal combustion engine piston pin matched bearing press-fitting device, which belongs to the technical field of internal combustion engine manufacturing, and comprises a processing mechanism, an isolation box, a cylinder fixedly arranged at the top of the isolation box, and a feeding pipe fixedly arranged at an opening at the top of the isolation box; the dust collection mechanism comprises a transverse plate fixedly installed in an inner cavity of the isolation box, a driving shaft sleeve rotationally installed on the top of the transverse plate, a transmission belt movably arranged on the outer side of the driving shaft sleeve in a sleeving mode, a reciprocating clamping sleeve movably arranged on the outer side of the transmission belt in a sleeving mode and a supporting plate fixedly installed on the top of the reciprocating clamping sleeve. The driving shaft sleeve of the dust collection mechanism drives the transmission belt, so that the dust collection filter pipe flexibly moves, dust in a working area is completely sucked away, dust attached to the surfaces of a piston pin and a bearing is reduced, the friction coefficient is prevented from being increased, it is guaranteed that press-fitting force is stable and controllable, press-fitting precision and quality are guaranteed, and the overall performance and reliability of the internal combustion engine are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of internal combustion engine manufacturing, specifically relates to a kind of internal combustion engine piston pin matched bearing press fitting equipment. BACKGROUND

[0002] In the modern internal combustion engine manufacturing field, piston pin is as the key component of connecting piston and connecting rod, and its assembly quality directly influences the performance and reliability of internal combustion engine, and the traditional piston pin assembly mode is mostly using interference fit, but this mode is prone to assembly stress concentration, surface damage and other problems in the assembly process, affects the matching precision and service life of piston pin and connecting rod small head hole, to solve these problems, internal combustion engine piston pin matched bearing press fitting equipment is used to press fit work to bearing.

[0003] At present, in the working process of matched bearing press fitting equipment, more dust and other particles in working area can have serious influence on processing effect in many aspects, these dust particles can be attached to the surface of piston pin and matched bearing, in the press fitting process, the friction coefficient between piston pin and bearing increases, so that press fitting force fluctuates, and it is difficult to accurately control the size and change process of press fitting force, thereby affecting the precision and quality of press fitting, and the situation of press fitting not in place or over-press fitting can occur, which seriously affects the overall performance and reliability of internal combustion engine. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of internal combustion engine piston pin matched bearing press fitting equipment, to solve the problems presented in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of internal combustion engine piston pin matched bearing press fitting equipment, comprising,

[0007] Processing mechanism, including isolation box, air cylinder fixedly installed at the top of the isolation box, and feeding tube fixedly installed at the opening at the top of the isolation box;

[0008] Dust collection mechanism, including horizontal plate fixedly installed in the inner cavity of the isolation box, drive shaft sleeve rotatably installed at the top of the horizontal plate, transmission belt movably sleeved outside the drive shaft sleeve, reciprocating sleeve movably sleeved outside the transmission belt, support plate fixedly installed at the top of the reciprocating sleeve, and pipe body fixedly installed outside the support plate,

[0009] And dust collection mechanism used in cooperation with dust collection mechanism.

[0010] As a preferred scheme of the utility model, the processing mechanism further includes a press fitting machine fixedly installed in the inner cavity of the isolation box, an access hole opened on the outer side of the isolation box, and an access door hingedly connected to the inner wall of the access hole.

[0011] As a preferred scheme of the utility model, the dust collection mechanism further includes a dust collection filter pipe fixedly installed at one end of the pipe body, a dust collection hose fixedly installed at the other end of the pipe body, a driven shaft sleeve movably sleeved at the other end of the transmission belt, and a dust removal piece fixedly installed at the bottom of the driven shaft sleeve.

[0012] As a preferred scheme of the utility model, the dust removal piece includes a connecting block fixedly installed at the bottom of the driven shaft sleeve, a cylinder fixedly installed at the bottom of the connecting block, a spring rod movably sleeved in the inner cavity of the cylinder, and a positioning sleeve fixedly installed at the end of the spring rod.

[0013] As a preferred scheme of the utility model, the dust removal piece further includes a cleaning soft film fixedly installed on the outer side of the positioning sleeve, a limiting sleeve movably sleeved at the bottom of the positioning sleeve, and a positioning pin rotatably installed at the bottom of the limiting sleeve.

[0014] As a preferred scheme of the utility model, the dust collection mechanism includes a box body fixedly installed at the bottom of the isolation box, a dust collection box fixedly installed in the inner cavity of the box body, a through hole opened on one side of the top of the dust collection box, an air inlet opened on the outer side of the dust collection box, and a filter screen plate movably clamped in the inner cavity of the dust collection box, the end of the spring rod penetrates through the through hole and reaches the inner cavity of the dust collection box, one end of the dust collection hose is fixedly connected with the air inlet and communicates with each other.

[0015] As a preferred scheme of the utility model, the dust collection mechanism further includes a ventilation fan fixedly installed on the other side of the top of the dust collection box, and an air extractor body fixedly installed in the inner cavity of the dust collection box.

[0016] Compared with the prior art, the utility model has the beneficial effects that: the driving shaft sleeve of the dust collection mechanism drives the transmission belt to move the dust collection filter pipe flexibly, fully sucks away the dust in the working area, reduces the adhesion of the dust on the piston pin and bearing surface, avoids the increase of the friction coefficient, ensures the stable and controllable press fitting force, guarantees the press fitting precision and quality, and improves the overall performance and reliability of the internal combustion engine. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0018] Figure 1 It is the whole structure schematic view of the utility model;

[0019] Figure 2 It is dust absorption mechanism structure schematic view of the utility model;

[0020] Figure 3 It is dust absorption mechanism structure sectional view of the utility model;

[0021] Figure 4 It is dust cleaning piece structure schematic view of the utility model.

[0022] In the drawing: 100, processing mechanism;101, isolation box;102, air cylinder;103, feeding pipe;104, press fitting machine;105, access hole;106, access door;200, dust absorption mechanism;201, cross plate;202, drive shaft sleeve;203, transmission belt;204, reciprocating sleeve;205, support plate;206, pipe body;207, dust absorption filter pipe;208, dust absorption hose;209, driven shaft sleeve;210, dust cleaning piece;210a, connecting block;210b, cylinder;210c, spring rod;210d, positioning sleeve;210e, cleaning film;210f, limiting sleeve;210g, positioning pin;300, dust absorption mechanism;301, box;302, dust absorption box;303, through hole;304, air inlet;305, filter screen;306, ventilation fan;307, air extractor body. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent and easy to understand, the specific implementation of the utility model is described in detail below with reference to the accompanying drawings.

[0024] In the following description, a lot of specific details are set forth in order to give a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from the description, and those skilled in the art can make similar generalization without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.

[0025] Secondly, the "one embodiment" or "embodiment" referred to here means that the specific features, structures or characteristics can be included in at least one implementation of the utility model. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0026] Embodiment 1

[0027] Reference Figures 1-4For the first embodiment of the utility model, the embodiment provides a piston pin matched bearing press-fitting equipment of internal combustion engine, comprising,

[0028] The processing mechanism 100 comprises an isolation box 101, a cylinder 102 fixedly installed on the top of the isolation box 101 and a feeding pipe 103 fixedly installed at the opening of the top of the isolation box 101.

[0029] The dust collection mechanism 200 comprises a horizontal plate 201 fixedly installed in the inner cavity of the isolation box 101, a driving shaft sleeve 202 rotatably installed on the top of the horizontal plate 201, a transmission belt 203 movably sleeved outside the driving shaft sleeve 202, a reciprocating sleeve 204 movably sleeved outside the transmission belt 203, a supporting plate 205 fixedly installed on the top of the reciprocating sleeve 204 and a pipe body 206 fixedly installed outside the supporting plate 205.

[0030] The dust collection mechanism 300 is used in cooperation with the dust collection mechanism 200.

[0031] The driving shaft sleeve 202 in the dust collection mechanism 200 rotates, drives the driven shaft sleeve 209 to rotate through the transmission belt 203, simultaneously drives the reciprocating sleeve 204 to reciprocate through the transmission belt 203, drives the supporting plate 205 and the pipe body 206 to move through the reciprocating sleeve 204, and the dust collection filter pipe 207 can move flexibly in the working area to collect dust, and the dust collection hose 208 transports the inhaled dust-containing air to the dust collection mechanism 300.

[0032] Specifically, the processing mechanism 100 further comprises a press-fitting machine 104 fixedly installed in the inner cavity of the isolation box 101, an inspection opening 105 formed on the outer side of the isolation box 101 and an inspection door 106 hingedly connected to the inner wall of the inspection opening 105.

[0033] The inspection opening 105 is formed on the outer side of the isolation box 101 of the processing mechanism 100 and is hingedly connected with the inspection door 106, through the opening of the inspection door 106, the staff can conveniently overhaul and clean the press-fitting machine 104 and other equipment in the inner cavity of the isolation box 101, clean the dust possibly remaining in time, ensure the normal operation of the equipment, simultaneously, it is also convenient to check and maintain the dust collection mechanism 200 and the dust collection mechanism 300, ensure that the dust collection and dust collection functions of the whole equipment are continuously effective, further guarantee the press-fitting quality of the piston pin and the matched bearing.

[0034] Further, the dust collection mechanism 200 further comprises a dust collection filter pipe 207 fixedly installed at one end of the pipe body 206, a dust collection hose 208 fixedly installed at the other end of the pipe body 206, a driven shaft sleeve 209 movably sleeved at the other end of the transmission belt 203 and a dust cleaning piece 210 fixedly installed at the bottom of the driven shaft sleeve 209.

[0035] The dust suction mechanism 200 can fully cover the working area where the processing mechanism 100 is located, timely suck away dust particles, reduce the possibility of dust adhering to the surface of the piston pin and the matching bearing, thereby avoiding the problem of increased friction coefficient between the piston pin and the bearing due to dust, and ensuring the stability and accurate control of the press fitting force.

[0036] Preferably, the dust collecting mechanism 300 comprises a box body 301 fixedly installed at the bottom of the isolation box 101, a dust collecting box 302 fixedly installed in the inner cavity of the box body 301, a through hole 303 opened at one side of the top of the dust collecting box 302, an air inlet 304 opened at the outer side of the dust collecting box 302, and a filter screen plate 305 movably clamped in the inner cavity of the dust collecting box 302. The end of the spring rod 210c penetrates through the through hole 303 to the inner cavity of the dust collecting box 302. One end of the dust suction hose 208 is fixedly connected with the air inlet 304 and communicates with each other. The dust collecting mechanism 300 further comprises a ventilation fan 306 fixedly installed at the other side of the top of the dust collecting box 302, and an air extractor body 307 fixedly installed in the inner cavity of the dust collecting box 302.

[0037] After the dust-containing air enters the dust collecting box 302, it is filtered through the filter screen plate 305, and the dust is intercepted in the dust collecting box 302. The purified air is discharged through the ventilation fan 306. This process effectively collects and processes the dust in the working area, further reduces the dust concentration in the working area, provides a clean environment for the press fitting of the piston pin and the matching bearing, and ensures the press fitting precision and quality.

[0038] In use, the feeding pipe 103 delivers the piston pin and the matching bearing to the press fitting machine 104 in the isolation box 101, and the air cylinder 102 provides power for the press fitting work to complete the press fitting of the piston pin and the matching bearing. At the same time, the dust suction mechanism 200 starts to work, the driving shaft sleeve 202 rotates, the driven shaft sleeve 209 is driven to rotate through the transmission belt 203, the transmission belt 203 also drives the reciprocating clamping sleeve 204 to make reciprocating motion, the reciprocating clamping sleeve 204 drives the support plate 205 and the pipe body 206 to move, so that the dust suction filter pipe 207 moves flexibly in the working area, sucks in the dust, and delivers the dust-containing air to the dust collecting mechanism 300 through the pipe body 206 and the dust suction hose 208.

[0039] In the dust collecting mechanism 300, the air extractor body 307 is started, the dust-containing air is sucked into the dust collecting box 302 through the air inlet 304, the dust is intercepted in the dust collecting box 302 when the dust-containing air passes through the filter screen plate 305, and the purified air is discharged through the ventilation fan 306.

[0040] In summary, the dust suction mechanism 200 enables flexible movement of the dust suction filter pipe 207, comprehensive coverage of the working area, timely suction of dust, reduction of dust adhesion to the piston pin and bearing surface, avoidance of increased friction coefficient due to dust, and guarantee of stable and accurate control of the press fitting force; the air extractor body 307 of the dust collection mechanism 300 sucks dust-containing air into the dust collection box 302 through the air inlet 304 and the dust suction hose 208, filters the dust-containing air through the filter screen plate 305, intercepts the dust, discharges the purified air through the ventilation fan 306, effectively reduces the dust concentration in the working area, provides a clean environment for the press fitting, and guarantees the press fitting precision and quality.

[0041] Embodiment 2

[0042] With reference to Figure 2 and Figure 4 The second embodiment of the utility model differs from the previous embodiment in that the embodiment provides a dust cleaning piece 210 capable of patting and cleaning the outer surface of the filter screen plate 305 when the driven shaft sleeve 209 rotates.

[0043] Specifically, the dust cleaning piece 210 comprises a connecting block 210a fixedly installed at the bottom of the driven shaft sleeve 209, a cylinder 210b fixedly installed at the bottom of the connecting block 210a, a spring rod 210c movably sleeved in the inner cavity of the cylinder 210b, and a positioning sleeve 210d fixedly installed at the end of the spring rod 210c, and the dust cleaning piece 210 further comprises a cleaning film 210e fixedly installed at the outer side of the positioning sleeve 210d, a limiting sleeve 210f movably sleeved at the bottom of the positioning sleeve 210d, and a positioning pin 210g rotatably installed at the bottom of the limiting sleeve 210f.

[0044] The dust cleaning piece 210 is fixedly installed at the bottom of the driven shaft sleeve 209, and the driven shaft sleeve 209 drives the dust cleaning piece 210 to rotate when the driven shaft sleeve 209 rotates, and the end of the spring rod 210c in the dust cleaning piece 210 penetrates through the through hole 303 and reaches the inner cavity of the dust collection box 302, and the cleaning film 210e at the end thereof can clean the filter screen plate 305, preventing the filter screen plate 305 from being blocked.

[0045] In use, when the driven shaft sleeve 209 rotates, the connecting block 210a fixedly connected to the bottom thereof rotates, thereby driving the cylinder 210b fixedly installed at the bottom of the connecting block 210a to rotate, and since the spring rod 210c is movably sleeved in the inner cavity of the cylinder 210b, the spring rod 210c also rotates, and the end of the spring rod 210c penetrates through the through hole 303 at the top of the dust collection box 302 and reaches the inner cavity of the dust collection box 302, the positioning sleeve 210d is fixed at the end of the spring rod 210c, and the cleaning film 210e at the outer side of the positioning sleeve 210d cleans the filter screen plate 305 in the inner cavity of the dust collection box 302 when the positioning sleeve 210d rotates, thereby removing the dust adhered to the filter screen plate 305 and preventing the filter screen from being blocked.

[0046] In summary, the dust cleaning piece 210 can clean the filter screen plate 305, prevent clogging, and ensure that the dust collecting mechanism 300 continuously and effectively operates.

[0047] It is important to note that the construction and arrangement of the application shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in the application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be altered or varied. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be varied or re-sequenced without materially affecting the application. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functionality and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to the particular embodiments described and illustrated herein, but extends to equivalents of which the foregoing describes are intended to cover.

[0048] Also, in order to provide a concise description of exemplary embodiments, all features of an actual implementation can not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the application, or those unrelated to enabling the claimed application).

[0049] It is understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

[0050] It should be noted that the above-mentioned embodiments are only used to illustrate the technical solutions of the present application but not to limit the present application, and although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalent replaced without departing from the spirit and scope of the technical solutions of the present application, and all should be included in the scope of the claims of the present application.

Claims

1. A press fitting apparatus for a piston pin bushing of an internal combustion engine, characterized by: The utility model relates to a processing mechanism (100) and dust collection mechanism (300) and dust collection mechanism (300) are used to cooperation dust collection mechanism (200). The processing mechanism (100) further includes a pressing machine (104) fixedly installed in the inner cavity of the isolation box (101), an inspection opening (105) opened on the outer side of the isolation box (101), and an inspection door (106) hinged to the inner wall of the inspection opening (105). The dust collection mechanism (300) includes a box body (301) fixedly installed at the bottom of the isolation box (101), a dust collection box (302) fixedly installed in the inner cavity of the box body (301), a through hole (303) opened on one side of the top of the dust collection box (302), an air inlet (304) opened on the outer side of the dust collection box (302), and a filter screen (305) movably clamped in the inner cavity of the dust collection box (302), the end of the spring rod (210c) penetrates through the through hole (303) and reaches the inner cavity of the dust collection box (302), one end of the dust collection hose (208) is fixedly connected with the air inlet (304) and communicates with each other. The dust collection mechanism (300) further includes a box body (301) fixedly installed at the bottom of the isolation box (101), a dust collection box (302) fixedly installed in the inner cavity of the box body (301), a through hole (303) opened on one side of the top of the dust collection box (302), an air inlet (304) opened on the outer side of the dust collection box (302), and a filter screen (305) movably clamped in the inner cavity of the dust collection box (302), the end of the spring rod (210c) penetrates through the through hole (303) and reaches the inner cavity of the dust collection box (302), one end of the dust collection hose (208) is fixedly connected with the air inlet (304) and communicates with each other.

2. A press fitting equipment for a piston pin bushing of an internal combustion engine according to claim 1, characterized in that: The dust collection mechanism (300) further includes a box body (301) fixedly installed at the bottom of the isolation box (101), a dust collection box (302) fixedly installed in the inner cavity of the box body (301), a through hole (303) opened on one side of the top of the dust collection box (302), an air inlet (304) opened on the outer side of the dust collection box (302), and a filter screen (305) movably clamped in the inner cavity of the dust collection box (302), the end of the spring rod (210c) penetrates through the through hole (303) and reaches the inner cavity of the dust collection box (302), one end of the dust collection hose (208) is fixedly connected with the air inlet (304) and communicates with each other.

3. A press fitting equipment for a piston pin bushing of an internal combustion engine according to claim 2, characterized in that: ​ 4. A press fitting equipment for a piston pin bushing of an internal combustion engine according to claim 3, characterized in that: ​ 5. A press fitting equipment for a piston pin bushing of an internal combustion engine according to claim 4, characterized in that: ​ 6. A press fitting equipment for a piston pin bushing of an internal combustion engine according to claim 5, characterized in that: ​ 7. A press fitting equipment for a piston pin bushing of an internal combustion engine according to claim 6, characterized in that: The dust collecting mechanism (300) further comprises a ventilation fan (306) fixedly installed on the other side of the top of the dust collecting box (302), and a suction fan body (307) fixedly installed in the inner cavity of the dust collecting box (302).

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