CN209025991U - A kind of piston shaft for internally cooled-spindle - Google Patents

Abstract

The utility model discloses a kind of piston shafts for internally cooled-spindle, including body, the inside of the body is equipped with piston shaft body, and one end of piston shaft body is equipped with platen, the both ends of the platen are fixed with connecting rod, connecting rod passes through Buffer Unit and pull rod axis connection, one end of the pull rod shaft is fixed by bolt assembly and Buffer Unit, one end of piston shaft body passes through body and extends to inside main shaft, one end of the main shaft is provided with water-cooling groove, water-cooling groove is communicated by water injection conduit with water inlet, the both ends of the main shaft are provided with ventilation slot, Limit screw is installed above the ventilation slot, and one end of Limit screw is fixed by one end of fastener and body, the outer surface of the main shaft is provided with radiating groove.The utility model solves that current piston shaft cooling effect is poor, and being also easy to produce heat can not exclude in time by being provided with Buffer Unit, water-cooling groove, ventilation slot, Limit screw and sealing ring, leads to problems such as main shaft easy to damage.

Description

A kind of piston shaft for internally cooled-spindle

Technical field

The utility model relates to piston shaft technical field, specially a kind of piston shaft for internally cooled-spindle.

Background technique

Piston is parts reciprocating in Motor Engine Cylinder body.The basic structure of piston can be divided into top, head Portion and skirt section.Top land is the major part for forming combustion chamber, and shape is related with selected combustion-chamber shape.Gasoline engine Flat-head piston is mostly used, its advantage is that endotherm area is small.Usually there are various pits, specific shape at the top of diesel engine piston Shape, position and size must be all adapted with the mixed Daqu of diesel engine and the requirement of burning.Piston ring groove is below all Part is known as piston skirt.It is to guide piston reciprocating in the cylinder and bear lateral pressure that it, which is acted on,.When engine operation, because The effect of cylinder pressure, piston can generate bending deformation, after piston is heated, since the metal at piston pin is more, Swell increment is greater than other everywhere.In addition, piston can also generate extrusion deformation under lateral pressure effect.The comprehensive knot of above-mentioned deformation Fruit, so that piston skirt section becomes ellipse of the long axis on piston pin direction.Further, since piston in the axial direction temperature and The distribution of quality is all uneven, and it is up big and down small for resulting in the thermal expansion of each section.

Current piston shaft cooling effect is poor, and being also easy to produce heat can not exclude in time, causes main shaft easy to damage, service life It is shorter, the normal use of main shaft is seriously affected, therefore a kind of novel piston shaft for internally cooled-spindle is developed in market in urgent need.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of piston shaft for internally cooled-spindle, solves mesh Secondary piston axis cooling effect is poor, and being also easy to produce heat can not exclude in time, leads to problems such as main shaft easy to damage.

(2) technical solution

To achieve the above object, the utility model provides the following technical solutions: a kind of piston shaft for internally cooled-spindle, packet Body is included, the inside of the body is equipped with piston shaft body, and one end of piston shaft body is equipped with platen, the platen Both ends are fixed with connecting rod, and connecting rod is connected by Buffer Unit with pull rod shaft, and one end of the pull rod shaft passes through bolt assembly It is mutually fixed with Buffer Unit, one end of the piston shaft body passes through body and extends to inside main shaft, and one end of the main shaft is set It is equipped with water-cooling groove, the water-cooling groove is communicated by water injection conduit with water inlet, and the both ends of the main shaft are provided with ventilation slot, institute It states and Limit screw is installed above ventilation slot, and one end of Limit screw is mutually fixed by one end of fastener and body, it is described The outer surface of main shaft is provided with radiating groove.

Preferably, the hinged place of the water injection conduit and water-cooling groove is provided with sealing ring.

Preferably, one end of the piston shaft body is equipped with wheel disc, and the other end of piston shaft body is provided with card slot.

Preferably, one end that the water injection conduit passes through water inlet extends to the outside of body.

Preferably, the piston shaft body is mutually clamped by the fixture block being arranged on card slot and main shaft.

(3) beneficial effect

The utility model provides a kind of piston shaft for internally cooled-spindle, have it is following the utility model has the advantages that

(1) the utility model is by being provided with Buffer Unit, Limit screw, ventilation slot and radiating groove, one end of pull rod shaft It is mutually fixed by bolt assembly with Buffer Unit, by being provided with Buffer Unit, the vibration that generates when can be operated to piston shaft It is buffered, vibration bring mechanical wear can be reduced, extend the service life of piston shaft, the both ends of main shaft are provided with logical Wind groove, ventilation slot communicate with the outside world, and can carry out wind-cooling heat dissipating to main shaft, the outer surface of main shaft is provided with radiating groove, and radiating groove can Accelerate shedding for main shaft internal heat, plays good wind-cooling heat dissipating effect；

(2) the utility model passes through card by being provided with sealing ring, water-cooling groove, water injection conduit and card slot, piston shaft body The fixture block being arranged on slot and main shaft is mutually clamped, and carries out installation fixation to piston shaft and main shaft in the way of card slot clamping, has The convenient and efficient advantage of assembly and disassembly, one end of main shaft are provided with water-cooling groove, and the water-cooling groove passes through water injection conduit and water inlet It communicates, by that can carry out water cooling to main shaft toward being filled the water inside water-cooling groove, the cold water of water-cooling groove produce when caning absorb main shaft running The hinged place of raw heat, water injection conduit and water-cooling groove is provided with sealing ring, and sealing ring prevents the phenomenon that seeps water, improves this The sealing effect of equipment.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is structure enlargement diagram at the A of the utility model；

Fig. 3 is the piston shaft agent structure schematic diagram of the utility model.

In figure: 1 connecting rod, 2 Buffer Units, 3 bodies, 4 fasteners, 5 Limit screws, 6 ventilation slots, 7 radiating grooves, 8 sealing rings, 9 platens, 10 piston shaft bodies, 11 pull rod shaft, 12 bolt assemblies, 13 main shafts, 14 water-cooling grooves, 15 water inlets, 16 water injection conduits, 17 Wheel disc, 18 card slots.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figure 1-3, the utility model provides a kind of technical solution: a kind of piston shaft for internally cooled-spindle, including Body 3, the inside of body 3 are equipped with piston shaft body 10, and one end of piston shaft body 10 is equipped with platen 9, and the two of platen 9 End is fixed with connecting rod 1, and connecting rod 1 is connected by Buffer Unit 2 with pull rod shaft 11, and one end of pull rod shaft 11 passes through bolt assembly 12 fix with 2 phase of Buffer Unit, and one end of piston shaft body 10 passes through body 3 and extends to inside main shaft 13, one end of main shaft 13 It is provided with water-cooling groove 14, water-cooling groove 14 is communicated by water injection conduit 16 with water inlet 15, and the both ends of main shaft 13 are provided with ventilation Slot 6 is equipped with Limit screw 5 above ventilation slot 6, and one end of Limit screw 5 is mutually consolidated by one end of fastener 4 and body 3 Fixed, the outer surface of main shaft 13 is provided with radiating groove 7, and water injection conduit 16 and the hinged place of water-cooling groove 14 are provided with sealing ring 8, piston One end of shaft body 10 is equipped with wheel disc 17, and the other end of piston shaft body 10 is provided with card slot 18, and water injection conduit 16 passes through One end of water inlet 15 extends to the outside of body 3, and piston shaft body 10 passes through the fixture block phase being arranged on card slot 18 and main shaft 13 Clamping.

In use, the inside of body 3 is equipped with piston shaft body 10, the other end of piston shaft body 10 is provided with card slot 18, piston shaft body 10 is mutually clamped by the fixture block being arranged on card slot 18 and main shaft 13, to work in the way of the clamping of card slot 18 Plug shaft body 10 and main shaft 13 carry out installation fixation, have the convenient and efficient advantage of assembly and disassembly, one end of main shaft 13 is provided with Water-cooling groove 14, water-cooling groove 14 are communicated with water inlet 15 by water injection conduit 16, can be right by toward being filled the water inside water-cooling groove 14 Main shaft 13 carries out water cooling, and the cold water of water-cooling groove 14 can absorb the heat generated when main shaft 13 operates, water injection conduit 16 and water-cooling groove 14 hinged place is provided with sealing ring 8, and sealing ring 8 prevents the phenomenon that seeps water, improves the sealing effect of the equipment, main shaft 13 Both ends be provided with ventilation slot 6, the outer surface of main shaft 13 is provided with radiating groove 7, and ventilation slot 6 communicates with the outside world, can be to main shaft 13 carry out wind-cooling heat dissipating, and radiating groove 7 can accelerate shedding for 13 internal heat of main shaft, play good wind-cooling heat dissipating effect, piston One end of shaft body 10 is equipped with platen 9, and the both ends of platen 9 are fixed with connecting rod 1, and connecting rod 1 passes through Buffer Unit 2 and pull rod shaft 11 It is connected, one end of pull rod shaft 11 is fixed by bolt assembly 12 and 2 phase of Buffer Unit, can be with by being provided with Buffer Unit 2 The vibration generated when operating to piston shaft body 10 buffers, and can reduce vibration bring mechanical wear, extend piston shaft The service life of main body 10.

It can to sum up obtain, the utility model is by being provided with Buffer Unit 2, water-cooling groove 14, ventilation slot 6, Limit screw 5 and close Seal 8, solves that current piston shaft cooling effect is poor, and being also easy to produce heat can not exclude in time, leads to problems such as main shaft easy to damage.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of piston shaft for internally cooled-spindle, including body (3), it is characterised in that: the inside of the body (3) is equipped with Piston shaft body (10), and one end of piston shaft body (10) is equipped with platen (9), the both ends of the platen (9) are fixed with company Bar (1), and connecting rod (1) is connected by Buffer Unit (2) with pull rod shaft (11), one end of the pull rod shaft (11) passes through bolt Component (12) is mutually fixed with Buffer Unit (2), and one end of the piston shaft body (10) passes through body (3) and extends to main shaft (13) One end of inside, the main shaft (13) is provided with water-cooling groove (14), and the water-cooling groove (14) passes through water injection conduit (16) and water inlet Mouth (15) communicates, and the both ends of the main shaft (13) are provided with ventilation slot (6), is equipped with limit spiral shell above the ventilation slot (6) Bar (5), and one end of Limit screw (5) is mutually fixed by fastener (4) and one end of body (3), outside the main shaft (13) Surface is provided with radiating groove (7).

2. a kind of piston shaft for internally cooled-spindle according to claim 1, it is characterised in that: the water injection conduit (16) The hinged place of water-cooling groove (14) is provided with sealing ring (8).

3. a kind of piston shaft for internally cooled-spindle according to claim 1, it is characterised in that: the piston shaft body (10) one end is equipped with wheel disc (17), and the other end of piston shaft body (10) is provided with card slot (18).

4. a kind of piston shaft for internally cooled-spindle according to claim 1, it is characterised in that: the water injection conduit (16) The outside of body (3) is extended to across one end of water inlet (15).

5. a kind of piston shaft for internally cooled-spindle according to claim 1, it is characterised in that: the piston shaft body (10) it is mutually clamped by the fixture block being arranged on card slot (18) and main shaft (13).