CN116733917A - Automatic belt pre-tightening device of air compressor - Google Patents
Automatic belt pre-tightening device of air compressor Download PDFInfo
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- CN116733917A CN116733917A CN202311020199.XA CN202311020199A CN116733917A CN 116733917 A CN116733917 A CN 116733917A CN 202311020199 A CN202311020199 A CN 202311020199A CN 116733917 A CN116733917 A CN 116733917A
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- 238000009434 installation Methods 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 2
- 239000007787 solid Substances 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
- F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
- F16H7/1263—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially straight path
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention relates to the technical field of transmission belt tensioning, in particular to an automatic belt pre-tightening device of an air compressor, which comprises a connecting frame, a constant-pressure traction mechanism, a first tension wheel and a second tension wheel, wherein two ends of the connecting frame are respectively and rotatably connected with an output shaft of an engine and an input shaft of a compressor, the constant-pressure traction mechanism is arranged on the connecting frame and is provided with a first installation part and a second installation part, the first tension wheel is rotatably arranged on the first installation part, the second tension wheel is rotatably arranged on the second installation part, and two sides of a belt are respectively connected with the first tension wheel and the second tension wheel in a bridging manner.
Description
Technical Field
The invention relates to the technical field of transmission belt tensioning, in particular to an automatic belt pre-tightening device of an air compressor.
Background
In pulley transmission, along with the increase of running time, a belt for transmitting motion tends to loosen, the belt loosens to enable the belt to easily slip, and the transmission efficiency of motion is reduced, so that a tensioning device is arranged in a general pulley transmission system, and the tensioning device is used for adjusting the belt to tension the belt when the belt loosens.
Chinese patent CN106838167B discloses a tensioning device and a compressor equipped with the tensioning device, comprising: the fixing plate is provided with a threaded connecting rod at one end, a baffle plate with a through groove and a nut in threaded fit with the tail end of the connecting rod; one end of the connecting rod is hinged to the fixed plate, the other end with threads penetrates through the through groove of the baffle, the nut is screwed into the threads, and the diameter of the circumcircle of the nut is larger than the width of the through groove; the fixed plate is also hinged to the base body, the baffle plate is also fixed to the base body, and the fixed plate is fixed to the compressor, and can rotate with the compressor due to the fact that the fixed plate is hinged to the base body.
The device adjusts the elasticity of belt through adjusting from the interval of driving wheel and action wheel, however compressor and engine are all very heavy, inconvenient regulation through this overspeed device tensioner can't be according to the rate of tension of belt simultaneously, adjusts the belt by oneself, still needs the manual operation of manual work, and adjusts under the state of shut down, and adjustment efficiency is lower.
Disclosure of Invention
To above-mentioned problem, provide an automatic preloading device of air compressor machine belt, can adjust the tension of belt by oneself with first tension pulley and second tension pulley evenly through constant voltage traction mechanism, solved current overspeed device tensioner and need just can manual regulation belt tension's problem under the shut down form.
In order to solve the problems in the prior art, the invention provides an automatic belt pre-tightening device of an air compressor, which is applied to tightening a belt between a compressor and an engine, and comprises a connecting frame, a constant-pressure traction mechanism, a first tension wheel and a second tension wheel, wherein two ends of the connecting frame are respectively and rotatably connected with an output shaft of the engine and an input shaft of the compressor, the constant-pressure traction mechanism is arranged on the connecting frame and is provided with a first installation part and a second installation part, the first installation part and the second installation part are positioned on two sides of the connecting frame, the first installation part and the second installation part can move in opposite directions or back directions along the direction perpendicular to the axis connecting line of the output shaft of the engine and the input shaft of the compressor, the first tension wheel is rotatably arranged on the first installation part, the second tension wheel is rotatably arranged on the second installation part, two sides of the belt are respectively connected with the first tension wheel and the second tension wheel in a bridging manner, and the first tension wheel and the second tension wheel are tensioned by constant pressure in the working state.
Preferably, the constant-pressure traction mechanism comprises a first vertical seat, a second vertical seat, a first tension shaft, a second tension shaft, a first traction arm, a second traction arm and a traction driver, wherein the first vertical seat and the second vertical seat are symmetrically arranged on two sides of the connecting frame, the first tension shaft is slidably arranged on the first vertical seat, the second tension shaft is slidably arranged on the second vertical seat, the first tension shaft and the second tension shaft are arranged in parallel, the first tension wheel is rotatably arranged on the first tension shaft, the second tension wheel is rotatably arranged on the second tension shaft, the first traction arm and the second traction arm are arranged on two sides of the connecting frame, the first traction arm is connected with the first tension shaft, the second traction arm is connected with the second tension shaft, the traction driver is arranged in the connecting frame and is in transmission connection with the first traction arm and the second traction arm, and the traction driver can move oppositely or oppositely through the first traction arm and the second traction arm under the working state.
Preferably, the first traction arm and the second traction arm have the same structure, the first traction arm comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is rotationally connected with the connecting frame, a guide groove extending along the length direction of the first connecting rod is formed in the first connecting rod, the first tension shaft is in sliding fit with the guide groove, one end of the second connecting rod is rotationally connected with the other end of the first connecting rod, and the other end of the second connecting rod is in transmission connection with the traction driver.
Preferably, the connecting frame comprises a connecting rod, a first bearing and a second bearing, wherein a first fixed ring and a second fixed ring are respectively arranged at two ends of the connecting rod, the first bearing is coaxially arranged in the first fixed ring and is connected with an output shaft of the engine, and the second bearing is coaxially arranged in the second fixed ring and is connected with an input shaft of the compressor.
Preferably, the connecting rod comprises a first rod body, a second rod body and a first bolt, wherein the second rod body is slidably arranged in the first rod body, the first fixing ring is arranged at the outer end of the first rod body, the second fixing ring is arranged at the outer end of the second rod body, the first bolt penetrates through the first rod body and is in threaded connection with the first bolt, and the first bolt is abutted to the second rod body.
Preferably, the constant pressure traction mechanism further comprises a sliding sleeve and a second bolt, the sliding sleeve is slidably arranged on the connecting rod, the first stand and the second stand are symmetrically arranged on two sides of the sliding sleeve, the second bolt penetrates through the sliding sleeve and is in threaded connection with the sliding sleeve, and the second bolt is abutted to the connecting rod.
Preferably, the traction drive comprises a first driving block, a servo motor and a screw rod, wherein the first driving block is slidably arranged in a connecting rod, the servo motor is arranged in the connecting rod, the screw rod is in transmission connection with an output shaft of the servo motor, the screw rod penetrates through the first driving block and is in threaded connection with the first driving block, and the second connecting rod and the second traction arm are in rotary connection with the first driving block.
Preferably, the traction driver comprises a sealing cylinder, a second driving block, a piston, a plug rod and a heating pipe, wherein the sealing cylinder is arranged in the first rod body, the second driving block is slidingly arranged in the first rod body, the second connecting rod and the second traction arm are rotationally connected with the second driving block, the piston is slidingly arranged in the sealing cylinder, the piston is used for enabling an inner cavity of the sealing cylinder to be respectively a pressure cavity and a sliding cavity, a thermal expansion agent is filled in the pressure cavity, the plug rod penetrates through one end of the sealing cylinder and is in sliding fit with the sealing cylinder, two ends of the plug rod are respectively connected with the piston and the second driving block, and the heating pipe extends into the pressure cavity.
Preferably, the traction drive further comprises a cooling fin provided on an outer circumferential surface of the seal cylinder, and a pressure sensor provided at one end of the seal cylinder, a detection end of the pressure sensor extending into the pressure chamber.
Preferably, the plug rod comprises an internal thread pipe and a screw rod, the internal thread pipe is coaxially and fixedly arranged at one end of the piston, the internal thread pipe penetrates through the sealing cylinder and is in embedded sliding fit with the sealing cylinder, the screw rod is in threaded connection with the internal thread pipe, and the outer end of the screw rod is in rotary connection with the second driving block.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the two ends of the connecting frame are rotationally connected with the compressor input shaft and the motor output shaft, so that the constant-pressure traction mechanism can be stably arranged on the connecting frame, and the first tension wheel and the second tension wheel are rotationally arranged on the constant-pressure traction mechanism, so that when the belt is loose, the constant-pressure traction mechanism can automatically tighten the first tension wheel and the second tension wheel with constant pressure, the adjusting efficiency is improved, the accuracy is higher, the real-time response can be realized, and the operation risk is reduced.
Drawings
Fig. 1 is a perspective view of an automatic belt pretensioner for an air compressor at a first view angle.
Fig. 2 is a perspective view of an automatic belt pretensioner for an air compressor in a second view.
Fig. 3 is a perspective view of a first tension pulley, a second tension pulley and a constant pressure traction mechanism in an automatic belt pretensioner of an air compressor.
Fig. 4 is a cross-sectional view of a first embodiment of a constant pressure traction mechanism in an automatic belt pretensioner of an air compressor.
Fig. 5 is an exploded perspective view of a first embodiment of a constant pressure traction mechanism in an automatic belt pretensioner of an air compressor.
Fig. 6 is a cross-sectional view of a second embodiment of a constant pressure traction mechanism in an automatic belt pretensioner of an air compressor.
Fig. 7 is an exploded perspective view of a second embodiment of a constant pressure traction mechanism in an automatic belt pretensioner of an air compressor.
Fig. 8 is a perspective view of a traction drive in an automatic belt pretensioner for an air compressor.
Fig. 9 is an exploded perspective view of a traction drive in a first view of an automatic belt pretensioner of an air compressor.
Fig. 10 is an exploded perspective view of a traction drive in a second view of an automatic belt pretensioner of an air compressor.
The reference numerals in the figures are: 1-a compressor; 2-an engine; 3-a belt; 4-connecting frames; 41-connecting rods; 411-a first securing ring; 412-a second securing ring; 413-a first stick body; 414-a second rod body; 415-first bolt; 42-a first bearing; 43-a second bearing; 44-sliding sleeve; 45-a second bolt; 5-a constant pressure traction mechanism; 51-a first stand; 52-a second stand; 53-a first tension shaft; 54-a second tension shaft; 551-first link; 5511-guide grooves; 552-a second link; 56-a second trailing arm; 571-a first drive block; 572—a servo motor; 573-a screw rod; 574-sealing the cylinder; 575-a second drive block; 576-a piston; 577-stopper rod; 5771 an internally threaded tube; 5772-screw; 58-heating the pipe; 591-cooling fins; 592-a pressure sensor; 6-a first tension wheel; 7-a second tension pulley.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
As shown in fig. 1, 2 and 3, the present invention provides:
the utility model provides an automatic preloading device of air compressor machine belt, is applied to tensioning the belt 3 between compressor 1 and the engine 2, preloading device includes link 4, constant voltage traction mechanism 5, first tension pulley 6 and second tension pulley 7, the both ends of link 4 are connected with the output shaft of engine 2 and the input shaft rotation of compressor 1 respectively, constant voltage traction mechanism 5 sets up on link 4, constant voltage traction mechanism 5 has first installation department and second installation department, first installation department and second installation department are located the both sides of link 4, first installation department and second installation department can be along the direction looks or the back of being perpendicular to engine 2 output shaft and compressor 1 input shaft axle center line removal, first tension pulley 6 rotationally sets up on first installation department, second tension pulley 7 rotationally sets up on the second installation department, and the both sides of belt 3 cross over connection respectively on first tension pulley 6 and second tension pulley 7, under the operating condition, first tension pulley 6 and second tension pulley 7 with invariable tension of belt 3.
Under operating condition, because the both ends of link 4 compressor 1 input shaft and motor output shaft rotate respectively and connect for when starting the motor, link 4 can be steady, through setting up constant voltage traction mechanism 5 on link 4, make first tension wheel 6 and second tension wheel 7 can set up respectively on constant voltage traction mechanism 5's first installation department and second installation department, constant voltage traction mechanism 5 can be with first tension wheel 6 and second tension wheel 7 can be with invariable pressure tensioning belt 3 respectively, when the belt 3 appears slackening the phenomenon, constant voltage traction mechanism 5 can drive first tension wheel 6 and second tension wheel 7 and tighten belt 3 with invariable pressure.
Make the both sides of belt 3 can be pushed down by first tension pulley 6 and second tension pulley 7 respectively, can evenly distribute the load on whole belt 3, help reducing wearing and tearing or the too early wearing and tearing of belt 3 unilateral, and then lengthen the life-span of belt 3, simultaneously through evenly distributed load and reduction slip, can reduce irregular vibrations and noise between belt 3 and first tension pulley 6 and the second tension pulley 7, help reducing transmission system's noise level, provide quieter operational environment.
According to the embodiment, the two ends of the connecting frame 4 are rotationally connected with the input shaft of the compressor 1 and the output shaft of the motor, the constant-pressure traction mechanism 5 can be stably installed on the connecting frame 4, the first tension wheel 6 and the second tension wheel 7 are rotationally arranged on the constant-pressure traction mechanism 5, when the belt 3 is in a loosening phenomenon, the constant-pressure traction mechanism 5 can automatically tighten the belt 3 through constant pressure by the first tension wheel 6 and the second tension wheel 7, the adjusting efficiency is improved, the accuracy is higher, real-time response can be realized, and the operation risk is reduced.
As shown in fig. 3, 4, 5 and 6, the constant pressure traction mechanism 5 includes a first stand 51, a second stand 52, a first tension shaft 53, a second tension shaft 54, a first traction arm, a second traction arm 56 and a traction driver, the first stand 51 and the second stand 52 are symmetrically disposed on two sides of the connecting frame 4, the first tension shaft 53 is slidably disposed on the first stand 51, the second tension shaft 54 is slidably disposed on the second stand 52, the first tension shaft 53 and the second tension shaft 54 are disposed in parallel, the first tension wheel 6 is rotatably disposed on the first tension shaft 53, the second tension wheel 7 is rotatably disposed on the second tension shaft 54, the first traction arm and the second traction arm 56 are disposed on two sides of the connecting frame 4, the first traction arm is connected with the first tension shaft 53, the second traction arm 56 is connected with the second tension shaft 54, and the second traction arm is rotatably disposed in the connecting frame 4 and is driven by the second traction arm and the second traction drive shaft 56 or the first traction arm and the second traction drive shaft 54.
When the tension of the first tension wheel 6 and the second tension wheel 7 to the belt 3 needs to be adjusted, a traction driver is started, so that the first traction arm can drive the first tension shaft 53 to move on the first vertical seat 51, the second traction arm 56 can drive the second tension shaft 54 to move on the second vertical seat 52, and the traction driver can drive the first traction arm and the second traction arm 56 to move at the same time, so that the first traction arm and the second traction arm 56 can respectively drive the first tension shaft 53 and the second tension shaft 54 to move in opposite directions or back directions, and the adjustment of the first tension wheel 6 and the second tension wheel 7 to the belt 3 is realized.
As shown in fig. 5 and 7, the first traction arm and the second traction arm 56 have the same structure, the first traction arm includes a first link 551 and a second link 552, one end of the first link 551 is rotationally connected with the connecting frame 4, a guide groove 5511 extending along the length direction of the first link 551 is provided on the first link 551, the first tension shaft 53 is slidingly matched with the guide groove 5511, one end of the second link 552 is rotationally connected with the other end of the first link 551, and the other end of the second link 552 is in transmission connection with a traction driver.
When the traction driver drives one end of the second link 552 to move along the horizontal direction, the first link 551 and the second link 552 are rotationally connected, so that the first link 551 deflects along the horizontal direction, the guide groove 5511 is slidably matched with the first tension shaft 53, and the first tension shaft 53 is slidably disposed on the first stand 51, so that the first link 551 slides on the first stand 51 when deflecting relative to the connecting frame 4, and meanwhile, the second traction arm 56 can drive the second tension shaft 54 to slide on the second stand 52 due to the same structure of the first traction arm and the second traction arm 56.
As shown in fig. 4, the connecting frame 4 includes a connecting rod 41, a first bearing 42 and a second bearing 43, both ends of the connecting rod 41 are respectively provided with a first fixing ring 411 and a second fixing ring 412, the first bearing 42 is coaxially disposed in the first fixing ring 411 and connected with an output shaft of the engine 2, and the second bearing 43 is coaxially disposed in the second fixing ring 412 and connected with an input shaft of the compressor 1.
The connecting rod 41 extends along the direction of motor output shaft and compressor 1 input shaft axle center line for the first solid fixed ring 411 and the second solid fixed ring 412 at connecting rod 41 both ends can rotate with motor output shaft and compressor 1 input shaft respectively and be connected, make after the start-up motor, connecting rod 41 can keep stable, and simultaneously set up the first tension pulley 6 and the second tension pulley 7 of connecting rod 41 both sides respectively and can follow the direction opposite directions or the back-to-back movement of perpendicular to connecting rod 41, and first tension pulley 6 and second tension pulley 7 can butt respectively in the both sides of belt 3, so ensure the load balance of belt 3.
As shown in fig. 5 and 7, the connecting rod 41 includes a first rod 413, a second rod 414, and a first bolt 415, the second rod 414 is slidably disposed in the first rod 413, the first fixing ring 411 is disposed at an outer end of the first rod 413, the second fixing ring 412 is disposed at an outer end of the second rod 414, the first bolt 415 penetrates the first rod 413 and is in threaded connection with the first rod, and the first bolt 415 abuts against the second rod 414.
Because the axial spacing of the motor and the compressor 1 of different air compressors is different, therefore for the air compressors of different models of adaptation, connect motor and compressor 1 respectively by telescopic first body of rod 413 and second body of rod 414 for the first solid fixed ring 411 of first body of rod 413 outer end can rotate with the output shaft of motor and be connected, make the second solid fixed ring 412 of second body of rod 414 outer end can rotate with the input shaft of compressor 1 to be connected, simultaneously through screwing first bolt 415, can fix the length of first body of rod 413 and second body of rod 414, with this stability that improves the structure.
As shown in fig. 5, the constant pressure traction mechanism 5 further includes a sliding sleeve 44 and a second bolt 45, the sliding sleeve 44 is slidably disposed on the connecting rod 41, the first stand 51 and the second stand 52 are symmetrically disposed on two sides of the sliding sleeve 44, the second bolt 45 penetrates through the sliding sleeve 44 and is in threaded connection with the sliding sleeve, and the second bolt 45 abuts against the connecting rod 41.
In order to adjust the positions of the first stand 51 and the second stand 52 on the connecting rod 41, the sliding sleeve 44 is slidably disposed on the connecting rod 41, and the second bolt 45 is threaded through the sliding sleeve 44, so that the position of the sliding sleeve 44 on the connecting rod 41 can be adjusted and fixed by screwing the second bolt 45, and the first stand 51 and the second stand 52 are fixedly disposed at two ends of the sliding sleeve 44, so that the positions of the first stand 51 and the second stand 52 can be adjusted, and different installation requirements can be met.
As shown in fig. 4 and 5, the traction drive includes a first driving block 571, a servo motor 572 and a screw rod 573, the first driving block 571 is slidably disposed in the connecting rod 41, the servo motor 572 is disposed in the connecting rod 41, the screw rod 573 is in transmission connection with an output shaft of the servo motor 572, the screw rod 573 penetrates through the first driving block 571 and is in threaded connection therewith, and the second connecting rod 552 and the second traction arm 56 are in rotational connection with the first driving block 571.
As a first embodiment of the traction drive, when the tension of the first tension wheel 6 and the second tension wheel 7 on the belt 3 needs to be adjusted, the servo motor 572 is started, so that the output shaft of the servo motor 572 drives the screw rod 573 to rotate in the connecting rod 41, and the screw rod 573 penetrates the first driving block 571 and is in threaded connection with the first driving block 571, so that the first driving block 571 can move in the connecting rod 41, and further the first driving block 571 drives the second connecting rod 552 and the first traction arm to deflect, so that the first tension shaft 53 slides on the first stand 51, and the second tension shaft 54 slides on the second stand 52.
As shown in fig. 6, 7, 8, 9 and 10, the traction drive includes a sealing cylinder 574, a second driving block 575, a piston 576, a stopper 577 and a heating pipe 58, the sealing cylinder 574 is disposed in the first rod 413, the second driving block 575 is slidably disposed in the first rod 413, the second connecting rod 552 and the second traction arm 56 are rotatably connected with the second driving block 575, the piston 576 is slidably disposed in the sealing cylinder 574, the piston 576 fills a cavity of the sealing cylinder 574 with a thermal expansion agent into a pressure cavity and a sliding cavity, respectively, the stopper 577 penetrates one end of the sealing cylinder 574 and is slidably engaged with the piston 576 and the second driving block 575, both ends of the stopper 577 are connected with the piston 576 and the second driving block 575, respectively, and the heating pipe 58 extends into the pressure cavity.
As a second embodiment of the traction drive, when the belt 3 is relaxed, the force of the first tension wheel 6 and the second tension wheel 7 on the belt 3 is reduced, and the heating tube 58 is started, so that the heating tube 58 heats the thermal expansion agent in the pressure chamber, and the pressure in the pressure chamber is increased, so that the piston 576 can slide continuously, and the first traction arm 56 and the second traction arm 56 can drive the first tension wheel 6 and the second tension wheel 7 to continuously abut against the belt 3, respectively, when the belt 3 is relaxed, and compared with the force in the initial state, the force is smaller than the initial force, and the heating tube 58 is started, so that the heating tube 58 heats the thermal expansion agent in the pressure chamber, and the piston 576 can slide continuously, and the first traction arm 56 can drive the first tension wheel 6 and the second tension wheel 7 to tighten the belt 3 with constant pressure.
As shown in fig. 9 and 10, the traction drive further includes a cooling fin 591 and a pressure sensor 592, the cooling fin 591 being disposed on an outer circumferential surface of the seal cartridge 574, the pressure sensor 592 being disposed at one end of the seal cartridge 574, a detection end of the pressure sensor 592 extending into the pressure chamber.
To maintain the pressure in the pressure chamber, a cooling fin 591 is provided on the outer circumferential surface of the seal cartridge 574, and the temperature of the thermal expansion agent is adjusted by the heating pipe 58 and the cooling fin 591, thereby maintaining the pressure in the pressure chamber.
As shown in fig. 9 and 10, the plug 577 includes an internally threaded tube 5771 and a screw 5772, the internally threaded tube 5771 is coaxially and fixedly disposed at one end of the piston 576, the internally threaded tube 5771 penetrates the sealing tube 574 and is in a fitting sliding fit therewith, the screw 5772 is in threaded connection with the internally threaded tube 5771, and the outer end of the screw 5772 is in rotational connection with the second driving block 575.
By rotating the screw 5772 relative to the internally threaded tube 5771, the distance between the second driving block 575 and the sealing cylinder 574 can be adjusted, thereby facilitating installation according to the actual installation environment.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.
Claims (10)
1. The utility model provides an automatic preloading device of air compressor machine belt, is applied to belt (3) between tensioning compressor (1) and engine (2), its characterized in that, preloading device includes link (4), constant voltage traction mechanism (5), first tension pulley (6) and second tension pulley (7), the both ends of link (4) are connected with the output shaft of engine (2) and the input shaft rotation of compressor (1) respectively, constant voltage traction mechanism (5) set up on link (4), constant voltage traction mechanism (5) have first installation department and second installation department, first installation department and second installation department are located the both sides of link (4), first installation department and second installation department can be followed the direction of perpendicular to engine (2) output shaft and compressor (1) input shaft axle center line and are moved in opposite directions or dorsad, first tension pulley (6) rotationally set up on first installation department, second tension pulley (7) rotationally set up on second installation department (3) tension pulley (6) and second tension pulley (7) under constant tension state respectively.
2. An automatic belt pretensioning device for an air compressor according to claim 1, characterized in that the constant pressure traction mechanism (5) comprises a first upright (51), a second upright (52), a first tension shaft (53), a second tension shaft (54), a first traction wheel (6) rotatably arranged on the first tension shaft (53), a second traction arm (56) and a traction drive, the first upright (51) and the second upright (52) being symmetrically arranged on both sides of the connecting frame (4), the first tension shaft (53) being slidably arranged on the first upright (51), the second tension shaft (54) being slidably arranged on the second upright (52), the first tension shaft (53) and the second tension shaft (54) being arranged in parallel, the first traction wheel (6) being rotatably arranged on the first tension shaft (53), the second tension wheel (7) being rotatably arranged on the second tension shaft (54), the first traction arm and the second traction arm (56) being arranged on both sides of the connecting frame (4) and the second traction arm (56) being connected to the second traction arm (56) in a working state, the traction drive can guide the first tension shaft (53) and the second tension shaft (54) to move towards or away from each other by a first traction arm and a second traction arm (56).
3. An automatic belt pre-tightening device for an air compressor according to claim 2, wherein the first traction arm and the second traction arm (56) have the same structure, the first traction arm comprises a first connecting rod (551) and a second connecting rod (552), one end of the first connecting rod (551) is rotationally connected with the connecting frame (4), a guide groove (5511) extending along the length direction of the first connecting rod (551) is arranged on the first connecting rod (551), the first tension shaft (53) is in sliding fit with the guide groove (5511), one end of the second connecting rod (552) is rotationally connected with the other end of the first connecting rod (551), and the other end of the second connecting rod (552) is in transmission connection with a traction driver.
4. An automatic belt pretensioning device for an air compressor according to claim 3, characterized in that the connecting frame (4) comprises a connecting rod (41), a first bearing (42) and a second bearing (43), both ends of the connecting rod (41) are respectively provided with a first fixing ring (411) and a second fixing ring (412), the first bearing (42) is coaxially arranged in the first fixing ring (411) and connected with an output shaft of the engine (2), and the second bearing (43) is coaxially arranged in the second fixing ring (412) and connected with an input shaft of the compressor (1).
5. The automatic belt pre-tightening device for an air compressor according to claim 4, wherein the connecting rod (41) comprises a first rod body (413), a second rod body (414) and a first bolt (415), the second rod body (414) is slidably arranged in the first rod body (413), the first fixing ring (411) is arranged at the outer end of the first rod body (413), the second fixing ring (412) is arranged at the outer end of the second rod body (414), the first bolt (415) penetrates through the first rod body (413) and is in threaded connection with the first rod body, and the first bolt (415) is abutted to the second rod body (414).
6. An automatic belt pretensioning device for an air compressor according to claim 4 or 5, characterized in that the constant pressure traction mechanism (5) further comprises a sliding sleeve (44) and a second bolt (45), the sliding sleeve (44) is slidably arranged on the connecting rod (41), the first stand (51) and the second stand (52) are symmetrically arranged on both sides of the sliding sleeve (44), the second bolt (45) penetrates the sliding sleeve (44) and is in threaded connection with the sliding sleeve, and the second bolt (45) is abutted on the connecting rod (41).
7. An automatic belt pretensioning device for an air compressor according to claim 4 or 5, characterized in that the traction drive comprises a first drive block (571), a servomotor (572) and a screw (573), the first drive block (571) being slidably arranged in the connecting rod (41), the servomotor (572) being arranged in the connecting rod (41), the screw (573) being in driving connection with the output shaft of the servomotor (572), the screw (573) penetrating the first drive block (571) and being in threaded connection therewith, the second connecting rod (552) and the second traction arm (56) being in rotational connection with the first drive block (571).
8. The automatic belt pretensioning device of an air compressor according to claim 5, characterized in that the traction drive comprises a sealing cylinder (574), a second drive block (575), a piston (576), a plug rod (577) and a heating pipe (58), the sealing cylinder (574) being arranged in the first rod body (413), the second drive block (575) being slidingly arranged in the first rod body (413), the second connecting rod (552) and the second traction arm (56) being in rotational connection with the second drive block (575), the piston (576) being slidingly arranged in the sealing cylinder (574), the piston (576) placing the inner cavity of the sealing cylinder (574) in a pressure chamber and a sliding chamber, respectively, the pressure chamber being filled with a thermal expansion agent, the plug rod (577) penetrating one end of the sealing cylinder (574) and being slidingly engaged therewith, both ends of the plug rod (577) being connected with the piston (576) and the second drive block (575), respectively, the plug rod (577) extending into the pressure chamber.
9. The automatic belt pretensioner device of an air compressor according to claim 8, wherein the traction drive further includes a cooling fin (591) and a pressure sensor (592), the cooling fin (591) being provided on an outer circumferential surface of the seal cylinder (574), the pressure sensor (592) being provided at one end of the seal cylinder (574), a detection end of the pressure sensor (592) extending into the pressure chamber.
10. The automatic belt pre-tightening device of an air compressor according to claim 8, wherein the plug rod (577) comprises an internal thread tube (5771) and a screw rod (5772), the internal thread tube (5771) is coaxially and fixedly arranged at one end of the piston (576), the internal thread tube (5771) penetrates through the sealing cylinder (574) and is in embedded sliding fit with the sealing cylinder, the screw rod (5772) is in threaded connection with the internal thread tube (5771), and the outer end of the screw rod (5772) is in rotational connection with the second driving block (575).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311020199.XA CN116733917B (en) | 2023-08-15 | 2023-08-15 | Automatic belt pre-tightening device of air compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311020199.XA CN116733917B (en) | 2023-08-15 | 2023-08-15 | Automatic belt pre-tightening device of air compressor |
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| CN116733917A true CN116733917A (en) | 2023-09-12 |
| CN116733917B CN116733917B (en) | 2023-10-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117780875A (en) * | 2024-02-27 | 2024-03-29 | 广州艾玛压缩机有限公司 | Anti-abrasion pressure adjusting device for tensioning compressor belt |
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| JPH10267091A (en) * | 1997-03-25 | 1998-10-06 | Kubota Corp | Belt transmitting device |
| CN101149099A (en) * | 2006-09-20 | 2008-03-26 | 株式会社电装 | Tension adjustment mechanism of power transmission belt for compressor in vehicle air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117780875A (en) * | 2024-02-27 | 2024-03-29 | 广州艾玛压缩机有限公司 | Anti-abrasion pressure adjusting device for tensioning compressor belt |
| CN117780875B (en) * | 2024-02-27 | 2024-04-19 | 广州艾玛压缩机有限公司 | Anti-abrasion pressure adjusting device for tensioning compressor belt |
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| Publication number | Publication date |
|---|---|
| CN116733917B (en) | 2023-10-10 |
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