Energy-saving compressor cooler barrel machining process
Technical Field
The invention belongs to the technical field of cooler part machining, and particularly relates to a machining process for a cooler cylinder of an energy-saving compressor.
Background
A cooler is required in a large compressor, and the cooler is generally composed of a cylinder, a copper pipe arranged in the cylinder, and an air cavity connected with two ends of the cylinder. The cylinder body is usually a cylinder formed by bending a steel plate by a plate bending machine to form a longitudinal seam, then welding the longitudinal seam by a welding gun, and then welding two or more cylinders together to obtain the cylinder body. The steel sheet need keep certain temperature when being crooked to guarantee that the steel sheet can be comparatively easy emergence deformation, nevertheless current plate bender does not have the effect of heating or heat preservation to the steel sheet, has increased the degree of difficulty and the consuming time of bent plate.
Disclosure of Invention
The invention provides a processing technology of an energy-saving compressor cooler cylinder, which aims to overcome the defects of the prior art and has low bent plate difficulty and high processing efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme: a processing technology for a cooler cylinder of an energy-saving compressor comprises the following steps:
a. bending a steel plate by a plate bending machine to form a cylinder;
b. welding the longitudinal seam on the cylinder obtained in the step a by a welding gun;
c. b, hoisting the welded cylinders in the step b to a metal support frame through a hoisting arm, wherein the number of the cylinders is 2, and the two cylinders are arranged side by side; then, welding the circular seam at the joint of the two cylinders by adopting welding equipment to obtain a cylinder body;
the plate bending machine in the step a comprises a machine frame, an upper roller piece arranged on the machine frame, two lower roller pieces arranged on the machine frame, a driving part for driving the upper roller piece and the lower roller piece to synchronously rotate, a first heating part for heating the upper roller piece, a first heat insulation part for preserving and insulating heat of the upper roller piece, a second heating part for heating the lower roller piece and a second heat insulation part for preserving and insulating heat of the lower roller piece; in the process of bending the steel plate by the plate bending machine, the steel plate moves back and forth through the gap between the upper roller piece and the lower roller piece, the first heating component continuously heats the upper roller piece, and the second heating component continuously heats the lower roller piece.
According to the invention, the heating parts are respectively arranged on the upper roller part and the lower roller part, so that the upper roller part and the lower roller part can both maintain a higher temperature in the plate bending process, and further the steel plate is continuously heated in the plate bending process, so that the steel plate always has a certain temperature and stronger ductility, the plate bending operation difficulty is reduced, the plate bending time is shortened, and the processing efficiency is high; moreover, because the heat insulation parts are respectively arranged outside the upper roller piece and the lower roller piece, the heat loss of the rest parts of the upper roller piece and the lower roller piece, which are in contact with the steel plate, can be effectively avoided, and the energy consumption is reduced; secondly, the heat insulation component can also avoid the upper and lower roller spare not to put into operation part high temperature, even the staff carelessly touches the condition that also is difficult for appearing the scald, and operating safety factor is high.
The first heating part comprises an annular accommodating cavity arranged in the upper roller part, an oil inlet channel arranged at one end of the upper roller part, an oil outlet channel arranged at the other end of the upper roller part, an oil inlet joint connected with the oil inlet channel, an oil outlet joint connected with the oil outlet channel, a first oil guide channel arranged on the upper roller part and used for communicating the oil inlet channel with the annular accommodating cavity, and a second oil guide channel used for communicating the oil outlet channel with the annular accommodating cavity; it sets up for loop configuration to hold the chamber, at last roller spare pivoted in-process, hot oil can be piled up all the time on corresponding to the position of going up roller spare bottommost, should be in the part that is direct and steel sheet contact in the course of the work, thereby can enough reduce the input volume of hot oil, can guarantee again to carry out good heat preservation heating to the steel sheet all the time, and because last roller spare is the pivoted state all the time, and then all inner walls all can with hot oil contact, it is lower not to go up roller spare local surface temperature to appear, be difficult to the problem on quick with heat transfer to the steel sheet after rotating to the lower part position, the not high problem of heating efficiency has been avoided.
The first heat insulation part comprises a housing covered outside the upper roll piece and a heat insulation layer arranged in the housing, the lower parts of the housing and the heat insulation layer are both provided with openings, and at least part of the lower part of the upper roll piece extends out of the openings; the frame is provided with two fixing frames, the oil inlet joint and the oil outlet joint respectively penetrate through the two fixing frames, and the oil inlet joint and the oil outlet joint are respectively matched with the fixing frames in a rotation stopping manner; the operation of the first heating member for continuously heating the upper roller member includes the steps of: hot oil is pumped into the oil inlet joint and flows into the annular accommodating cavity after flowing through the oil guide channel, redundant oil is conveyed outwards from the oil outlet channel, and hot oil circulation is formed in the upper roller piece; in the circulation process, the upper roller piece is driven by the driving part to rotate, and hot oil in the annular accommodating cavity stays at the lowest position of the upper roller piece under the action of gravity to heat the whole surface of the upper roller piece; the lower parts of the housing and the heat insulation layer are provided with openings, so that the lower part of the upper roller is directly exposed and contacted with the steel plate, and the steel plate is directly and well heated; after removing lower position, all the other parts of going up the roller all contact with the insulating layer, have effectively avoided the condition that the cooling appears in the surface of the roller after being heated by hot oil, promote heat utilization rate.
The lower roll piece comprises a hollow roll body, an opening arranged at one end of the roll body, an end cover fixedly connected with the opening in a welding mode, a driving shaft arranged on the end cover, a plurality of strip-shaped oil outlet grooves and a shaft body arranged at the other end of the roll body, and through grooves are formed in the driving shaft and the shaft body respectively.
The second heating part comprises a hot oil storage part arranged in the roller body, a storage tank arranged on the hot oil storage part and provided with an opening at the upper part, an oil leakage gap formed between the upper part of the hot oil storage part and the inner wall of the roller body, connecting shafts fixedly arranged at the left end and the right end of the hot oil storage part, an oil outlet end cover covering the end of the roller body, which is provided with an oil outlet groove, an oil outlet pipe arranged on the oil outlet end cover, an oil inlet groove arranged on one connecting shaft and an oil inlet pipe arranged in the oil inlet groove; the connecting shaft penetrates through the through groove, the outer end of the connecting shaft penetrates out of the outer end of the through groove, a support frame fixedly connected with the outer end of the connecting shaft is arranged on the rack, and the inner surface of the oil outlet end cover is in sealing fit with the outer surface of the roller body; the operation of the second heating part for continuously heating the lower roller comprises the following steps: hot oil is pumped into the hot oil storage part by a pump through an oil inlet pipe and an oil inlet groove, after the storage groove is filled, the hot oil flows out from an oil gap and flows downwards along the inner surface of the roller body to the lowest part of the lower roller part, then the hot oil flows out from the oil outlet groove to an oil outlet end cover and is discharged outwards through an oil outlet pipe, and the discharged oil is heated and then enters the lower roller part through the oil inlet pipe again to circularly heat the lower roller part; with the structure, the injection amount of hot oil is only required to ensure that the storage part is filled with the hot oil, the lower roller is not required to be entirely filled with the hot oil, the investment cost of the hot oil is reduced, the overall weight of the lower roller is reduced, the lower roller can rotate more easily, the power consumption for driving the lower roller to rotate is lower, and the energy is saved; furthermore, hot oil is not directly outwards discharged by storage piece, but flows to the roll body lower part back along the roll body inner wall through the oil leak clearance, outwards discharges again, so hot oil that leaves along the clearance can carry out preheating treatment to the whole surface of roll body, guarantee that the surface of each position of roll body all has certain temperature after rotating supreme position, thereby can be rapid heat the steel sheet, avoid appearing the condition that hot oil heat is used for heating the roll body, improve the utilization ratio of heat energy.
The second heat insulation component comprises a heat insulation cover arranged outside the roller body in a covering mode, heat insulation cotton arranged in the heat insulation cover and a position adjusting structure used for adjusting the relative position between the heat insulation cover and the roller body, and the upper surfaces of the heat insulation cover and the heat insulation cotton are both of an opening structure; the upper parts of the housing and the heat insulation layer are provided with openings, so that the upper part of the lower roller piece is directly exposed and contacted with the steel plate to directly and well heat the steel plate; after the upper part is removed, the rest parts of the lower roller are in contact with the heat insulation layer, so that the condition that the surface of the lower roller is cooled after being heated by hot oil is effectively avoided, and the heat energy utilization rate is improved; can adjust the position that separates the temperature cover through the structure of transposing, when equipment stop work, the rotatable opening that separates the temperature cover and make to separate the temperature cover is towards the lateral part, guarantees that the lower roll spare does not have the direct part that exposes outside, reduces the possibility that the staff was hindered by the mistake, reduces the potential safety hazard.
The positioning structure comprises an arc-shaped convex part arranged on the oil outlet end cover, an arc-shaped channel arranged on the arc-shaped convex part and a positioning block arranged on the heat insulation cover, the positioning block is of an L-shaped structure, one end of the positioning block is connected with the heat insulation cover, the other end of the positioning block can move in a reciprocating manner and penetrates through the arc-shaped channel, and a rubber layer is fixedly connected to the inner wall of one end of the arc-shaped channel; when the heat insulation cover rotates, the positioning block moves along the arc-shaped channel, so that the motion track of the heat insulation cover is effectively limited, and the position deviation of the heat insulation cover is avoided; the rubber layer is arranged at one end of the arc-shaped channel, so that the positioning block is clamped at the position when moving to the position, the position of the heat insulation cover is further positioned, the heat insulation cover is guaranteed to be limited at the position of the opening facing the side part, and the heat insulation cover is prevented from continuously moving; preferably, after the position adjustment of the heat insulation covers on the two lower roll pieces is finished, the openings on the heat insulation covers are arranged opposite to each other.
The oil outlet end cover is connected with the fixed plate through screws, and the support frame is connected with the open slot through screws; under this kind of structure, fix the position of the end cover that produces oil, avoid the end cover that produces oil to take place to rotate under the drive of roller spare down to guarantee that the oil pipe is the setting down all the time, avoid producing oil pipe winding condition to appear, reduce equipment failure rate.
The driving part comprises a driving part, an output gear, a driving gear, a first transmission gear, a second transmission gear and a driven gear, the output gear, the driving gear, the first transmission gear, the second transmission gear and the driven gear are arranged on an output shaft of the driving part, the driving gear is fixedly sleeved on a connecting shaft on one lower roller, the driven gear is fixedly sleeved on a connecting shaft on the other lower roller, the first transmission gear is rotatably arranged on the rack, one side of the first transmission gear is meshed with the output gear, and the other side of the first transmission gear is meshed with the driven gear; the second transmission gear is fixedly sleeved on the upper roller piece and is meshed with the driving gear; one driving part is adopted to drive a plurality of roller bodies, so that the energy consumption is low; and the synchronous rotation of the upper roller piece and the lower roller piece is ensured through transmission matching, the fault is not easy to occur in the plate bending process, the upper roller piece and the lower roller piece are synchronously started and stopped, the bending degree of the cylinder body is more accurate, and the manufactured cylinder body is high in quality.
The upper roller part and the lower roller part are respectively provided with the heating parts, so that the steel plate always has a certain temperature, the plate bending operation difficulty is reduced, and the plate bending time is shortened; because the heat insulation parts are respectively arranged outside the upper roller piece and the lower roller piece, the heat loss of the upper roller piece and the lower roller piece is effectively avoided, and the energy consumption is reduced; secondly, still avoid the possibility of scald, the factor of safety of work is high.
Drawings
FIG. 1 is a first schematic structural diagram of a plate rolling machine according to the present invention.
FIG. 2 is a second schematic structural view of a plate bending machine according to the present invention.
Fig. 3 is a side view of fig. 1.
Fig. 4 is a sectional view taken along line B-B of fig. 3.
Fig. 5 is a cross-sectional view taken along line D-D of fig. 3.
Fig. 6 is a partially enlarged view one of fig. 5.
Fig. 7 is a second partial enlarged view of fig. 5.
Fig. 8 is a schematic cross-sectional view of the lower roller member of the present invention.
Fig. 9 is a partially enlarged view of fig. 1.
Fig. 10 is a front view of fig. 1.
Fig. 11 is a sectional view taken along line E-E of fig. 10.
Detailed Description
A processing technology for a cooler cylinder of an energy-saving compressor comprises the following steps:
a. bending a steel plate by a plate bending machine to form a cylinder;
b. c, welding the longitudinal seam on the cylinder obtained in the step a through a welding gun;
c. b, hoisting the welded cylinders in the step b to a metal support frame through a hoisting arm, wherein the number of the cylinders is 2, and the two cylinders are arranged side by side; then, welding the circular seam at the joint of the two cylinders by adopting welding equipment to obtain a cylinder body;
as shown in fig. 1 to 11, the plate bending machine in the step a includes a frame 1 made of metal, an upper roller 2 disposed on the frame, two lower rollers 3 disposed on the frame, a driving member for driving the upper and lower rollers to rotate synchronously, a first heating member for heating the upper roller 2, a first heat insulating member for insulating heat of the upper roller 2, a second heating member for heating the lower roller 3, and a second heat insulating member for insulating heat of the lower roller 3; in the process of bending the steel plate by the plate bending machine, the steel plate moves left and right in a reciprocating manner in the gap between the upper roller piece and the lower roller piece and finally is completely in a cylindrical shape, and the specific reciprocating movement time and the movement process are the prior art and are not repeated; in the process of bending the steel plate, the first heating component continuously heats the upper roller piece 2, and the second heating component continuously heats the lower roller piece 3; wherein, the upper and lower roller pieces are made of metal; specifically, the first heating component comprises an annular accommodating cavity 41 arranged inside the upper roller component, an oil inlet channel 42 arranged at one end of the upper roller component, an oil outlet channel 43 arranged at the other end of the upper roller component, an oil inlet joint 44 connected with the oil inlet channel, an oil outlet joint 45 connected with the oil outlet channel, a first oil guide channel 46 arranged on the upper roller component and used for communicating the oil inlet channel with the annular accommodating cavity, and a second oil guide channel 47 used for communicating the oil outlet channel with the annular accommodating cavity; the oil inlet channel 42 and the oil outlet channel 43 are cylindrical structures, the first oil guide channel 46 and the second oil guide channel 47 are a plurality of through holes which are uniformly distributed along the circumferential direction inside the upper roller at intervals, and each through hole is connected with the annular accommodating cavity; the oil inlet joint 44 is a cylinder made of metal, the oil inlet joint 44 is connected with an external oil pump through a hose, the oil pump is connected with an external oil storage tank, a heating pipe is arranged in the oil storage tank, so that oil in the oil storage tank can be heated, and the oil is pumped into the oil inlet joint 44 through the oil pump; the oil inlet joint 44 is also a metal cylinder, and is also connected with the oil storage tank through a hose, so that the oil in the annular accommodating cavity can be circulated; preferably, two L-shaped fixing frames 11 made of metal are arranged on the frame 1, the oil inlet joint 44 and the oil outlet joint 45 are respectively arranged on the two fixing frames 11 in a penetrating manner, and the oil inlet joint 44 and the oil outlet joint 45 are respectively in rotation stopping fit with the fixing frames 11; specifically, the fixing frame is provided with a through hole, the inner wall of the through hole is provided with a strip-shaped rotation stopping convex part, and the oil inlet connector 44 and the oil outlet connector 45 are respectively provided with a rotation stopping groove for inserting the rotation stopping convex part.
The first heat insulation component comprises a housing 51 covering the upper roll and a heat insulation layer 52 arranged in the housing, the lower parts of the housing 51 and the heat insulation layer 52 are both provided with openings, and at least part of the lower part of the upper roll 2 extends out of the openings; wherein, the housing is made of glass fiber reinforced plastic, and the heat insulation layer is heat insulation cotton; specifically, the operation of the first heating member to continuously heat the upper roller member 2 includes the steps of: hot oil is pumped into the oil inlet joint 44, flows through the oil guide channel and then flows into the annular accommodating cavity, redundant oil is conveyed outwards through the oil outlet channel 43, and hot oil circulation is formed in the upper roller element; in the circulation process, the upper roller member 2 is driven by the driving part to rotate, and the hot oil in the annular accommodating cavity 41 stays at the lowest position of the upper roller member 2 under the action of gravity to heat the whole surface of the upper roller member 2.
The lower roller part 3 comprises a hollow roller body 31, an opening 32 arranged at one end of the roller body, an end cover 33 fixedly connected with the opening in a welding manner, a driving shaft 34 arranged on the end cover, a plurality of strip-shaped oil outlet grooves 35 arranged at the other end of the roller body and a shaft body 36, wherein the plurality of strip-shaped oil outlet grooves 35 are arranged on the side wall of the end cover and are uniformly distributed at intervals along the circumferential direction of the end cover; further, the driving shaft 34 and the shaft body 36 are respectively provided with a through groove 361.
The second heating part comprises a hot oil storage part 61 arranged in the roller body, a storage groove 62 which is arranged on the hot oil storage part and has an opening at the upper part, an oil leakage gap 63 formed between the upper part of the hot oil storage part and the inner wall of the roller body, connecting shafts 64 fixedly arranged at the left end and the right end of the hot oil storage part, an oil outlet end cover 65 covering the end of the roller body, which is provided with an oil outlet groove, an oil outlet pipe 66 arranged on the oil outlet end cover, an oil inlet groove 67 arranged on one of the connecting shafts and an oil inlet pipe 68 arranged in the oil inlet groove; the cross section of the hot oil storage part 61 is in a structure similar to a cam, and the hot oil storage part 61 is made of metal, so that the heat conduction effect is better; the inner surface of the oil outlet end cover is in sealing fit with the outer surface of the roller body; the upper edge of the hot oil storage part 61 is preferably arranged in a fillet structure, so that excessive friction force cannot be generated between the hot oil storage part 61 and the inner surface of the roller body, the size of the oil leakage gap 63 is small, the hot oil storage part 61 cannot quickly flow through the oil leakage gap 63, the oil in the hot oil storage part 61 is slowly overflowed from the oil leakage gap 63, the oil is always kept in a full state in the hot oil storage part 61, and the upper inner wall of the roller body is completely contacted with hot oil.
The connecting shaft 64 penetrates through the through groove 361, and the outer end of the connecting shaft penetrates out of the outer end of the through groove 361; preferably, a support frame 12 is arranged on the frame 1, and the outer end of the connecting shaft is fixedly connected with the support frame through a screw; the oil inlet pipe 68 is connected with an external oil pump through a hose, the oil pump is connected with an external oil storage tank, a heating pipe is arranged in the oil storage tank, so that oil in the oil storage tank can be heated, and the heated oil is pumped into the oil inlet pipe 68 through the oil pump; the oil outlet pipe 66 is also connected with an oil storage tank through a hose, so that the oil in the annular accommodating cavity can be circulated; specifically, the operation of the second heating member to continuously heat the lower roller 3 includes the following steps: hot oil is pumped into the hot oil storage part 61 through the oil inlet pipe 68 and the oil inlet groove 67 by the pump, after the storage groove 62 is filled, the hot oil flows out from the oil leakage gap 63 and flows downwards along the inner surface of the roller body to the lowest position of the lower roller part 3, then the hot oil flows out from the oil outlet groove 35 to the oil outlet end cover 65 and is discharged out through the oil outlet pipe 66, and the discharged oil is heated and then enters from the oil inlet pipe 67 again to circularly heat the lower roller part 3.
Further, the second heat insulation component comprises a heat insulation cover 71 arranged outside the roller body, heat insulation cotton 72 arranged in the heat insulation cover and a position adjusting structure used for adjusting the relative position between the heat insulation cover and the roller body, the upper surfaces of the heat insulation cover 71 and the heat insulation cotton 72 are both of an open structure, the heat insulation cover 71 is made of glass fiber reinforced plastics, and the heat insulation cotton 72 is heat insulation cotton.
The positioning structures are arranged into 2 groups, each group of positioning structures comprises an arc-shaped convex part 81, an arc-shaped channel 82 arranged on the arc-shaped convex part and a positioning block 83 arranged on the heat insulation cover, the arc-shaped convex part 81 is formed by directly extending the side wall of the oil outlet end cover outwards, and the positioning block 83 is made of metal and is fixedly connected to the outer surface of the heat insulation cover in a welding manner; furthermore, the positioning block 83 is of an L-shaped structure, one end of the positioning block 83 is connected with the heat insulation cover 71, and the other end of the positioning block 83 is arranged in the arc-shaped channel 82 in a penetrating manner and can move back and forth; preferably, the inner wall of one end of the arc-shaped channel 82 is adhesively connected with a rubber layer 821, so that the size of the arc-shaped channel 82 at the end is reduced.
An open slot 13 is formed in the frame 1, and a positioning part matched with the oil outlet end cover is arranged in the open slot 13 so as to ensure that the oil outlet end cover cannot rotate; the number of the positioning components is two, each group of the positioning components includes an L-shaped frame body 141, an arc-shaped carriage 142 fixed on the frame body 141, and a fixing plate 143 disposed on a side of the arc-shaped carriage, the oil outlet end cap 65 is connected to the fixing plate 143 through screws, and the frame body 141 is connected to the open slot 13 through screws.
The driving part comprises a driving part 91, an output gear 92 arranged on an output shaft of the driving part, a driving gear 93, a first transmission gear 94, a second transmission gear 95 and a driven gear 96, the driving gear 93 is fixedly sleeved on a connecting shaft on one of the lower roller parts 3, the driven gear 96 is fixedly sleeved on a connecting shaft on the other lower roller part 3, the first transmission gear 94 is rotatably arranged on the frame 1, one side of the first transmission gear is meshed with the output gear 92, and the other side of the first transmission gear is meshed with the driven gear 96; a second transmission gear 95 is fixedly sleeved on the upper roller piece and is meshed with the driving gear 93; the driving member is a motor, and the output gear 92, the driving gear 93, the first transmission gear 94, the second transmission gear 95 and the driven gear 96 are all commercially available metal gears.