CN108500334B

CN108500334B - Automatic drilling machine of cooling and speed governing

Info

Publication number: CN108500334B
Application number: CN201810789630.XA
Authority: CN
Inventors: 骆兰珍; 林高建; 董建华
Original assignee: Hangzhou Fuyang Fei Shang Decoration Engineering Co Ltd
Current assignee: Suzhou Xineng Environmental Protection Technology Co ltd
Priority date: 2017-05-05
Filing date: 2017-05-05
Publication date: 2019-12-06
Anticipated expiration: 2037-05-05
Also published as: CN107020403B; CN108500333B; CN107020403A; CN108500335A; CN108500334A; CN108500333A

Abstract

The invention belongs to the technical field of drilling machines, and particularly relates to an automatic cooling and speed regulating drilling machine which comprises a variable speed cone mechanism, a compressor, a condenser, an evaporator and a fixing device, wherein the variable speed cone mechanism, the compressor, the condenser and the evaporator are all arranged in the fixing device; it has the functions of automatically reducing temperature, automatically regulating speed, reducing noise and continuously working; the speed changing cone mechanism has the function of adjusting the speed of the drill bit; the compressor has the function of compressing the gaseous working medium into the condenser; the evaporator has the function of keeping the temperature of the motor at a certain value; the condenser is used for changing the high-pressure gaseous working medium flowing from the compressor into a liquid state and then conveying the liquid working medium into the evaporator; the fixing device is used for fixing the variable-speed cone mechanism, the compressor, the condenser and the evaporator; the pipe connecting device is used for connecting the evaporation structure and the compressor and conveying the compressed high-pressure gaseous working medium to the evaporation structure.

Description

Automatic drilling machine of cooling and speed governing

Technical Field

The invention belongs to the technical field of drilling machines, and particularly relates to a drilling machine capable of automatically cooling and regulating speed.

Background

Present drilling machine that indoor decoration used, because there is not effectual motor heat dissipation mechanism, so the drilling machine just need stop after using a period and carry out natural cooling, the refrigerated time is very long like this, thereby work efficiency when having reduced the decoration, and extravagant a large amount of time, current drilling machine is when drilling simultaneously, run into harder wall, unable automatic speed governing, if the staff is inexperienced, can't punch as required on the hard wall, so just need design the drilling machine of an automatic cooling and speed governing.

The invention designs a drilling machine capable of automatically cooling and regulating speed to solve the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses an automatic cooling and speed regulating drilling machine which is realized by adopting the following technical scheme.

The utility model provides an automatic drilling machine of cooling and speed governing which characterized in that: the variable speed cone device comprises a variable speed cone mechanism, a compressor, a condenser, an evaporator and a fixing device, wherein the variable speed cone mechanism, the compressor, the condenser and the evaporator are all installed in the fixing device.

The fixing device comprises a handle, a shell, heat dissipation holes, a first air inlet hole, a second air inlet hole and a through hole, wherein the inner wall of the rear end of the shell is provided with a plurality of heat dissipation holes; a plurality of second air inlet holes are formed on the front end surface of the shell; the end surface of the shell, which is provided with the second air inlet hole, is provided with a through hole, and the axis of the through hole is superposed with the axis of the shell; a plurality of first air inlets are formed in the circumferential direction of the outer circle surface of the shell, which is close to the heat dissipation hole; the two handles are symmetrically arranged on the outer circular surface of the shell and are close to the heat dissipation holes.

the speed change cone mechanism comprises a transmission shaft, a limiting ring, a driving motor, a blocking cover, a memory metal, a second fixed block, a notch, a first fixed block, a drill bit, an annular shell, a driving shaft, a conical shell, a conical plate, a first straight gear, a first connecting plate, a second straight gear shaft, a second straight gear, a second connecting plate, a third straight gear shaft, a third connecting plate, a fourth straight gear shaft, a first inner gear ring, a second inner gear ring, a third inner gear ring, a T-shaped ring, a telescopic device, a first cavity, a center hole, a first supporting plate, a linear bearing and a third supporting plate, wherein the three first supporting plates are uniformly arranged on the inner wall of the shell in the circumferential direction; the driving motors are arranged on the end faces of the three first supporting plates; the limiting ring is arranged on the inner circular surface of the shell; the linear bearing is arranged in the shell and is matched with the limiting ring; the three third supporting plates are uniformly arranged on the inner circular surface of the linear bearing in the circumferential direction; the end surface of the annular shell is provided with a central hole; the annular shell is matched with the three third supporting plates through the outer circular surface and is arranged on the three third supporting plates; the conical shell is internally provided with a first cavity; a first inner gear ring, a second inner gear ring and a third inner gear ring are sequentially arranged on the inner wall of the first cavity; one end of the conical shell is arranged on the end surface of the annular shell, and the axis of the conical shell is superposed with the axis of the annular shell; one end of the transmission shaft is arranged on the end surface of the conical shell and is superposed with the axis of the transmission shaft and the axis of the conical shell; the drill bit is arranged at one end of the transmission shaft; one end of the driving shaft is arranged on the motor shaft, and the other end of the driving shaft penetrates through the central hole; a first T-shaped ring groove is formed in the end face of the first straight gear; the end face of the first straight gear provided with the first T-shaped annular groove is arranged on the end face of the driving shaft; the T-shaped ring is arranged on the first straight gear through the matching with the first T-shaped ring groove; the conical plate is arranged in the conical shell through the matching of the conical surface on the conical plate and the inner wall of the first cavity; one end of a fourth straight gear shaft is arranged on the end face of the conical plate; the fourth straight gear is arranged on a fourth straight gear shaft, and the fourth straight gear is matched with the third inner gear ring on the conical shell and is matched with the first straight gear; the third connecting plate is arranged on the end face of the fourth straight gear shaft; one end of a third straight gear shaft is arranged at the upper end of one side of the third connecting plate; the third straight gear is arranged on a third straight gear shaft, and the third straight gear is matched with the second inner gear ring on the conical shell and is matched with the first straight gear; the second connecting plate is arranged on the end face of the third straight gear shaft; the second straight gear shaft is arranged at the upper end of one side of the second connecting plate; the second straight gear is arranged on a second straight gear shaft, and the second straight gear is matched with the first inner gear ring on the conical shell and is matched with the first straight gear; the side surface of the upper end of the first connecting plate is arranged on the second straight gear shaft; one end of the telescopic device is arranged on the end surface of the T-shaped ring, and the other end of the telescopic device is arranged on the side surface of the first connecting plate; the four first fixed blocks are arranged on the end face of one end of the driving motor; the four second fixed blocks are arranged on the end face of the other end of the driving motor; notches are formed on the two memory metals; one of the memory metals is arranged on the four first fixed blocks; the other memory metal is arranged on the four second fixed blocks; the blocking cover is arranged on the memory metal close to one end of the conical shell and has elasticity.

The telescopic device comprises a telescopic rod, a telescopic sleeve, a first guide groove, a first guide block and a second spring, wherein two first through guide grooves are symmetrically formed in the inner wall of the telescopic sleeve; the two first guide blocks are symmetrically arranged on the outer circular surface of the telescopic rod; the telescopic rod is arranged in the telescopic sleeve through the matching of a first guide block arranged on the telescopic rod and a first guide groove; the second spring is nested on the excircle surface of the telescopic rod, one end of the second spring is arranged on the end surface of the telescopic sleeve, and the other end of the second spring is arranged on the first guide block.

The condenser comprises a condensation structure and a fan, wherein the condensation structure is arranged on the inner wall of the rear end of the shell; the fan is installed on the motor shaft, and the fan is located the condensation structure front side.

The evaporator comprises a first spring, a first air outlet, a conical cavity, a third air inlet, an evaporation structure and a heat insulation layer, wherein the conical cavity is arranged in the evaporation structure, and the third air inlet is formed in the side, with the smaller cross-sectional area, of the conical cavity; a first air outlet is formed in the larger cross-sectional area side of the conical cavity; the plurality of evaporation structures are uniformly arranged on the outer side of the driving motor in the circumferential direction; two ends of each evaporation structure are respectively arranged between the two memory metals through a first spring and a second spring; and a heat insulation layer is arranged on one side of each evaporation structure back to the motor.

The compressor comprises a second supporting plate, a sixth guide groove, a fifth guide block, a spring supporting block, a third T-shaped groove, a hollow shaft, a first T-shaped groove, a first T-shaped block, a guide strip, a first liquid working medium cavity, a second liquid working medium cavity, a first cam, a second cam, a third cam, a second guide block, a third spring, a fourth spring, a working block, a fifth spring, a third plunger piston, a second T-shaped groove, a first plunger piston, a middle hole, a ring groove, a second guide groove, a first square groove, a second cavity, a third guide block, a sixth spring, a second shell, an arc-shaped block, a third guide groove, a fourth guide block, a fourth guide groove, a second plunger piston, a through groove, a third hole cavity, a hollow shaft hole, a fifth guide groove, a middle groove, a strip groove, a third T-shaped block, a first shell, a pipe connecting device, a first working medium channel, a second working medium channel, a third working medium channel, a fourth, The third working medium channel is arranged on the inner circular surface of the shell, and the third support plates are arranged between the blocking cover and the annular shell; the pipe connecting device is arranged on the three second supporting plates through the matching of the outer circular surface and the three second supporting plates; the hollow shaft is nested outside the driving shaft and is arranged on the inner circular surface of the pipe connecting device; a first working medium channel, a second working medium channel, a third working medium channel, a fourth working medium channel, a fifth working medium channel and a sixth working medium channel are formed in the hollow shaft; the first shell of the compressor is internally provided with a second cavity, and the end surface of the first shell of the compressor is provided with a middle hole; two second guide grooves are symmetrically formed in the inner circular surface of the second cavity; a first square groove is formed in the inner circular surface of the second cavity, and the first square groove and the two second guide grooves are distributed at an angle of 90 degrees around the axis of the first shell of the compressor; a second T-shaped groove is formed in the end face of the first square groove; a third T-shaped groove is formed in the side face of the first square groove; the inner wall of one end of the first shell of the compressor is provided with a ring groove; the first shell of the compressor is matched with the outer circular surface of the hollow shaft through the middle hole and is arranged on the hollow shaft; the second shell of the compressor is provided with a third cavity; one end of the third cavity is provided with a hollow shaft hole; a through groove is formed in the inner circular surface of the third cavity and matched with the first square groove; a fifth guide groove is formed in the end face of the through groove; the spring supporting block is arranged on the end face of the through groove and matched with the fifth guide groove; the two third guide blocks are symmetrically arranged on the outer circular surface of the second shell of the compressor; the second shell of the compressor is arranged in the first shell of the compressor through the matching of the third guide block and the second guide groove; a hollow shaft hole on the second outer shell of the compressor is matched with the outer circular surface of the hollow shaft; the sixth spring is positioned in the second guide groove; one end of a sixth spring is arranged on the end surface of the second guide groove, and the other end of the sixth spring is arranged on the end surface of the third guide block; the end surface of the first cam is provided with a groove which is not penetrated; two third guide grooves are symmetrically formed in the side surface of the groove which is not penetrated through the first cam; the first cam is arranged on the outer circular surface of the hollow shaft; the third cam is arranged on the outer circular surface of the hollow shaft; the two fourth guide blocks are symmetrically arranged on the side surface of the second cam; the second cam is arranged on the end surface of the third cam, and a fourth guide block arranged on the second cam is matched with the third guide groove; the arc-shaped block is arranged on the outer circular surface of the first cam; the arc-shaped block is matched with the annular groove; the two guide bars are symmetrically arranged on the side surface of the second plunger; the first T-shaped block is arranged on the end face of the second plunger; the second plunger is arranged on the first shell of the compressor through the matching of a first T-shaped block arranged on the second plunger and a third T-shaped groove; the second plunger is matched with the outer circular surface of the hollow shaft, the first cam and the second cam; one end of a fifth spring is arranged on the end surface of the first T-shaped block, and the other end of the fifth spring is arranged on the end surface of the third T-shaped groove; the first plunger is internally provided with an intermediate groove; two long grooves are symmetrically arranged on the side surface of the middle groove; a T-shaped groove is formed in the end face, away from the middle groove, of the first plunger; the first plunger is arranged on the second plunger through the matching of the guide bar and the long groove, and the second plunger is matched with the outer circular surface of the hollow shaft, the first cam and the second cam; the shape block is arranged on the first shell of the compressor through the matching with the second T-shaped groove; one end of a fourth spring is arranged on the end face of the first plunger, and the other end of the fourth spring is arranged on the end face of the I-shaped block; a third T-shaped block is arranged on the end face of the third plunger, and a second guide block is arranged on the other end face of the third plunger; the third plunger is arranged on the first plunger in a matched manner through a third T-shaped block and a T-shaped groove formed in the first plunger, and a second guide block on the third plunger is matched with a fifth guide groove in a second shell of the compressor; one end of a third spring is arranged on the end face of the fifth guide groove, and the other end of the third spring is arranged on the end face of the second guide block; the third plunger is matched with the outer circular surface of the hollow shaft and the third bump; the first cam, the second cam, the third cam, the first plunger, the second plunger, the third plunger, the first shell of the compressor and the second shell of the compressor form a first liquid working medium cavity and a second liquid working medium cavity together; a sixth guide groove is formed in the outer circular surface of the hollow shaft penetrating out of the hollow shaft hole, and a fifth guide block is mounted at one end of the first connecting plate; the sixth guide groove is matched with the fifth guide block.

The pipe connecting device is connected with the evaporation structure through a hose; the evaporation structure is connected with the condensation structure through a hose; the condensing structure is connected with the pipe connecting device through a hose.

as a further improvement of the present technology, the first straight gear is mounted on the drive shaft by a key.

As a further improvement of the present technology, the second spur gear is mounted on the second spur gear shaft through a bearing.

As a further improvement of the present technology, the third spur gear is mounted on the third spur gear shaft through a bearing.

As a further improvement of the present technology, the fourth spur gear is mounted on the fourth spur gear shaft through a bearing.

As a further improvement of the technology, when the temperature of the memory metal is below 50 ℃, the memory metal maintains a certain shape, and no gap exists between adjacent evaporation structures; when the temperature of the memory metal is more than 50 ℃, the memory metal is deformed, and a gap is generated between the adjacent evaporation structures.

As a further improvement of the technology, a liquid working medium tank is arranged in the pipe connecting device.

Compared with the traditional drilling machine technology, the invention designs the drilling machine capable of automatically cooling and regulating the speed, and the drilling machine has the functions of automatically reducing the temperature, automatically regulating the speed, reducing the noise and continuously working; the speed changing cone mechanism has the function of adjusting the speed of the drill bit; the compressor has the function of compressing the gaseous working medium into the condenser; the evaporator has the function of keeping the temperature of the motor at a certain value; the condenser is used for changing the high-pressure gaseous working medium flowing from the compressor into a liquid state. Then the liquid working medium is conveyed into an evaporator; the fixing device is used for fixing the variable-speed cone mechanism, the compressor, the condenser and the evaporator; the pipe connecting device is used for connecting the evaporation structure and the compressor and can convey the compressed high-pressure liquid working medium to the evaporation structure.

The fixing device is used for fixing the variable-speed cone mechanism, the compressor, the condenser and the evaporator; the end face of the shell is provided with a plurality of heat dissipation holes for facilitating air to flow through and heat dissipation; the shell is provided with a plurality of second air inlet holes for facilitating air to enter; the periphery of the outer circle surface of the shell close to the heat dissipation holes is provided with a plurality of first air inlet holes, so that when the evaporator cannot normally cool the motor, the temperature rises to enable the two memory metals to deform, a gap exists between the adjacent evaporation structures, when air enters from the second air inlet holes, the blocking cover prevents the air from taking away cold air around the evaporator, the air flows through the upper side of the evaporator, the flowing air forms negative pressure, the air outside can be brought into the periphery of the evaporator under the action of the negative pressure, the motor is further cooled continuously, and the effect of reducing the temperature of the motor is achieved; the two handles are symmetrically arranged on the outer circular surface of the shell and are used for facilitating the control of a person on the drilling machine.

the variable speed cone mechanism has the function of adjusting the speed of the drill bit; the three first supporting plates are uniformly arranged on the inner wall of the shell in the circumferential direction and are used for fixing the driving motor; the three third supporting plates are uniformly arranged on the inner circular surface of the linear bearing in the circumferential direction and are used for fixing the annular shell; the conical shell is provided with a first cavity for accommodating a first straight gear, a second straight gear, a third straight gear, a fourth straight gear, a second straight gear shaft, a third straight gear shaft, a fourth straight gear shaft, a second connecting plate and a third connecting plate; the inner wall of the first cavity is provided with a first inner gear ring, a second inner gear ring and a third inner gear ring, and the first inner gear ring, the second inner gear ring and the third inner gear ring have the functions that when a motor shaft moves, a first straight gear is driven to move, the first straight gear drives a second straight gear to move, the second straight gear drives the first inner gear ring to move, the first inner gear ring drives a conical shell to move, and the conical shell drives a transmission shaft to move; the transmission shaft moves with the drill bit; the drill bit is used for drilling and processing the wall surface; the conical shell is designed for the purpose that when the drill bit cannot meet a hard wall surface, the drill bit cannot continuously drill forwards, and at the moment, a person applies a forward force to the drilling machine and is subjected to the reaction force of the wall surface to the drill bit, so that the drill bit moves towards the shell; the moving drill bit drives the transmission shaft to move; the transmission shaft drives the conical shell to move; under the action of the linear bearing, the annular shell moves along with the conical shell; the moving conical shell drives a conical plate arranged on the conical shell to move; meanwhile, the first inner gear ring, the second inner gear ring and the third inner gear ring which are arranged in the conical shell move together; the tapered plate drives the fourth straight gear shaft to move along the axial direction; the fourth straight gear shaft drives a fourth straight gear arranged on the fourth straight gear shaft to move; the third connecting plate is connected with a fourth straight gear shaft; one end of the third straight gear shaft is connected with the third connecting plate, and the other end of the third straight gear shaft is connected with the second connecting plate; one end of the second straight gear shaft is connected with the second connecting plate, and the other end of the second straight gear shaft is connected with the first connecting plate; the movement of the fourth straight gear shaft drives the third connecting plate; the third connecting plate drives the third straight gear shaft to move; the third straight gear shaft drives the third straight gear to move; the third straight gear shaft drives the second connecting plate to move; the second connecting plate drives the second straight gear shaft to move; the second straight gear shaft drives the first connecting plate to move; at the moment, the third straight gear is meshed with the first straight gear, and the conical shell drives the drill bit to rotate in an accelerated manner because the diameter of the second inner gear ring is smaller than that of the first inner gear ring; thereby the drill bit can have faster rotating speed and drilling capability on hard objects; when the first straight gear is meshed with the third straight gear and the wall surface still can not be drilled, the drill bit continues to move towards the shell under the action of manpower; thereby causing the first spur gear to mesh with the fourth spur gear; the conical shell, the transmission shaft and the drill bit are high in speed, and the drill bit with the increased speed can continuously process the wall surface; thereby achieving the purpose of drilling harder wall surfaces; one end of the telescopic device is arranged on the end face of the T-shaped ring, and the other end of the telescopic device is arranged on the side face of the first connecting plate, so that when the conical shell moves to drive the first connecting plate to move, the first connecting plate drives the telescopic rod to move, the first guide block on the telescopic rod moves along the first guide groove, and the effect of stabilizing the driving shaft is achieved; the first connecting plate and the hollow shaft are matched to limit the first connecting plate to rotate along with the conical shell; the second spring is used for providing acting force for the first guide block when the first guide block returns; the four first fixed blocks are arranged on the end face of the motor and are used for fixing the memory metal; the four second fixed blocks are arranged on the end surface of the motor and are used for fixing memory metal; the two memory metals are provided with notches for facilitating the deformation of the memory metals; the blocking cover is arranged on the end face of the memory metal, and the blocking cover has elasticity so that the blocking plate can deform along with the memory metal; the limiting ring is used for limiting the movement of the linear bearing, so that the purpose of limiting the movement of the annular shell is achieved.

The fan is mounted on the motor shaft and functions to blow heat from the condensing structure out of the drill.

The evaporator in the invention cools the motor; the evaporation structure is internally provided with a conical cavity, so that the liquid working medium is evaporated into a gas state in the evaporation tube; a third air inlet is formed in one side of the conical cavity with the smaller cross section area, so that low-temperature liquid working media enter the evaporation structure; the side of the conical cavity with the larger cross-sectional area is provided with a first air outlet for facilitating the outflow of the gaseous working medium; the plurality of evaporation structures are positioned outside the motor, and gaps are not formed among the connected evaporation structures to prevent cold air from flowing out; one end of each evaporation structure is arranged on one of the memory metal end faces through a first spring, and the other end of each evaporation structure is arranged on the other memory metal end face through a second spring and is used for connecting the evaporation structure with the memory metal; the heat insulation layers are arranged on the end faces of the corresponding evaporation structures and are used for keeping the temperature of the evaporation structures at a lower temperature through heat insulation; the first spring has the function of absorbing the vibration of the motor, so that the vibration of the motor is blocked from being transmitted to the shell, and the function of reducing noise is achieved.

The compressor is used for driving the liquid working medium to flow and providing motive power for the refrigeration cycle; the three second supporting plates are uniformly arranged on the inner circular surface of the shell in the circumferential direction and are used for fixing the pipe connecting device; the hollow shaft is nested outside the driving shaft and is arranged on the inner circular surface of the pipe connecting device to fix the first cam, the second cam and the third cam; the hollow shaft is provided with a first working medium channel, a second working medium channel and a third working medium channel which are used for flowing liquid working medium into the first liquid working medium cavity; the hollow shaft is provided with a fourth working medium channel, a fifth working medium channel and a sixth working medium channel which are used for discharging the gaseous working medium into the condensation structure; when the annular shell moves, the first shell of the compressor is driven to move, the space in the first liquid working medium cavity is enlarged by the moving first shell of the compressor, the space of the second liquid working medium is reduced, and the gaseous working medium is discharged to the pipe connecting device by the reduced space; the conical shell moving along the axial direction relative to the shell drives the annular shell to move, and the moving annular shell drives the first shell of the compressor to move; the first cam is connected with the first shell of the compressor through the arc-shaped block; the first shell of the compressor moves to drive the arc-shaped block to move, the arc-shaped block drives the first cam to move, and the first cam moves under the matching of the second guide groove and the third guide block; the second plunger is connected with the first shell of the compressor through a first T-shaped block; the second plunger is connected with the first plunger through a guide bar; the moving first shell of the compressor drives the first T-shaped block to move, the first T-shaped block drives the second plunger to move, and the guide bar on the second plunger moves along the long groove on the first plunger; the space between the first liquid working medium cavity and the second liquid working medium cavity is enlarged; the enlarged space can accommodate more liquid working media; more liquid working media can better cool the driving motor; the rotating annular shell drives the first compressor shell to move, and the moving first compressor shell drives the second compressor shell to move under the action of the third guide block; the moving first shell and the moving second shell of the compressor drive the first plunger, the second plunger and the third plunger to move together; at the moment, the first cam and the second cam can press the first plunger and the second plunger, so that the first plunger and the second plunger move along the first square groove; the third cam can press the third plunger, and the third plunger can move along the through groove; the third plunger moving causes the third T-block thereon to move along the third T-shaped slot; the second guide block moves along the fifth guide groove; the sixth spring is positioned in the second guide groove; one end of a sixth spring is arranged on the end surface of the second guide groove, and the other end of the sixth spring is arranged on the end surface of the third guide block and is used for providing acting force for the third guide block during returning; one end of a fifth spring is arranged on the end surface of the first T-shaped block, and the other end of the fifth spring is arranged on the end surface of the third T-shaped groove and is used for providing restoring force for the first T-shaped block; one end of the fourth spring is installed on the end face of the first plunger, and the other end of the fourth spring is installed on the end face of the I-shaped block and is used for providing acting force for the first plunger when the first plunger returns.

The liquid working medium box has the function of offsetting the influence of the space change of the compressor on the refrigeration cycle.

In the using process, when the drilling machine does not work, the first spring, the second spring, the third spring, the fourth spring, the fifth spring and the sixth spring are in a free telescopic state; the first straight gear is meshed with the second straight gear; when the drilling machine works, the motor shaft moves to drive the driving shaft to move, the driving shaft drives the first straight gear to move, the first straight gear drives the second straight gear to move, the second straight gear drives the first inner gear ring on the conical shell to move, and the first inner gear ring drives the conical shell to move; the conical shell drives the transmission shaft to move, and the transmission shaft drives the drill bit to move; the drill bit will drill the wall; the movement of the conical shell drives the annular shell to move, the annular shell drives the first compressor shell to move, and the first compressor shell drives the second compressor shell to move; the first shell of the compressor drives the first plunger and the second plunger to move; the second shell of the compressor drives the third plunger to move; the space of the second liquid working medium cavity is reduced by the moving first plunger, the second plunger and the third plunger, and the third spring, the fourth spring and the fifth spring are in a compressed state at the moment; so that the liquid working medium in the second liquid working medium cavity flows into the condenser through the pipe connecting device; the condenser is cooled by the fan, the vaporized liquid working medium is condensed into the liquid working medium under the action of the condenser, the liquid working medium flows into the condenser to be evaporated, air enters the drilling machine from the air inlet in the process and flows to the position of the fan from the upper end of the heat insulation layer of the evaporator, and then the working medium enters the compressor again through the hose and the pipe connecting device; the evaporation structure can cool the motor; when the drilling machine works for a long time, the temperature of the motor cannot be reduced by the evaporation structure, when the temperature reaches more than 50 ℃, the memory metal deforms, gaps exist between adjacent evaporation structures due to the deformed memory metal, and at the moment, external air enters the drilling machine through the first air inlet hole due to the fact that a negative pressure cavity is formed when the air enters the evaporation structure; the air will continue to cool the motor, and after the temperature is reduced, the memory metal will recover to the original shape; when the encountered wall surface is hard, the hard wall surface can enable the drill bit to move axially relative to the shell, the moving drill bit can sequentially drive the transmission shaft, the conical shell, the conical plate, the fourth spur gear shaft, the fourth spur gear, the third connecting plate, the third spur gear shaft, the third spur gear, the second connecting plate, the second spur gear shaft, the second spur gear, the first connecting plate and the telescopic rod to move, and the second telescopic rod is in a compression state at the moment; at the moment, the first straight gear is meshed with the third straight gear, under the action of the third straight gear and the second inner gear ring, the speed of the conical shell is increased, the speed of the transmission shaft and the speed of the drill bit are increased due to the reduced conical shell, and therefore the wall surface can be drilled with greater drilling capacity; when a harder wall surface is met, the drill bit moves relative to the shell continuously, so that the first straight gear is meshed with the fourth straight gear, the conical shell obtains higher speed under the action of the third inner gear ring, the drilling capacity of the transmission shaft and the drill bit is higher, and the effect of drilling the harder wall surface is achieved; the higher the wall hardness of the drill bit drill is, the higher the power consumed by the driving motor is, the more the driving motor generates heat, in order to cool the driving motor, the conical shell axially moves relative to the shell to drive the annular shell to move, the annular shell drives the first shell of the compressor to move, and the sixth spring is in a compressed state at the moment; the first shell of the compressor drives the first cam to move; the first shell of the compressor drives the second plunger to move; the space between the first liquid working medium cavity and the second liquid working medium cavity is enlarged by the moving first cam and the second plunger; the drilling machine generates more heat when moving at low speed, and the space between the first liquid working medium cavity and the second liquid working medium cavity is enlarged, so that more liquid working media enter the first liquid working medium cavity, more liquid working media take away more heat, and more liquid working media enter the evaporator for evaporation, and the motor can be cooled better; when the drilling of the hard wall surface is finished, the telescopic rod is enabled to move under the action of the second spring, and the movement of the telescopic rod drives the first connecting plate, the second straight gear shaft, the second straight gear, the second connecting plate, the third straight gear shaft, the third straight gear, the third connecting plate, the fourth straight gear shaft, the fourth straight gear, the conical plate, the conical shell, the transmission shaft and the drill bit to move in sequence; the first straight gear is meshed with the second straight gear; the moving conical shell drives the annular shell to move; under the combined action of the annular shell and the sixth spring, the first shell, the first cam and the second plunger of the compressor are driven to move in sequence; thereby restoring the compressor to its original position.

Drawings

Fig. 1 is a schematic view of the overall component distribution.

Fig. 2 is a cross-sectional view of an integral part.

Fig. 3 is a schematic view of a handle mounting structure.

Fig. 4 is a schematic view of the housing structure.

Fig. 5 is a schematic view of a first support plate mounting structure.

Fig. 6 is a schematic view of a second support plate mounting structure.

fig. 7 is a schematic view of a third support plate mounting structure.

FIG. 8 is a schematic view of a barrier cover mounting arrangement.

Fig. 9 is a schematic view of a memory metal mounting structure.

Fig. 10 is a schematic view of an evaporation structure installation structure.

FIG. 11 is a schematic view of a memory metal structure.

Fig. 12 is a schematic view of the mounting structure of the first, second, and third ring gears.

Fig. 13 is a schematic view of the installation structure of the first spur gear, the second spur gear and the third spur gear.

FIG. 14 is a schematic view of an annular housing mounting arrangement.

fig. 15 is a schematic view of the mounting structure of the telescopic rod.

Fig. 16 is a schematic view of the structure of the telescopic device.

Fig. 17 is a schematic view of a first straight gear structure.

Fig. 18 is a schematic view of the internal structure of the compressor.

Fig. 19 is a schematic view of a compressor structure.

Fig. 20 is a sectional view of the first casing of the compressor.

Fig. 21 is a schematic view of a third guide block mounting structure.

Fig. 22 is a schematic view of the mounting structure of the first cam, the second cam and the third cam.

Fig. 23 is a schematic view of a first cam configuration.

Fig. 24 is a structural view of a second cam.

Fig. 25 is a schematic view of a second housing structure of the compressor.

Fig. 26 is a schematic view of a bar mounting structure.

Fig. 27 is a schematic view of a first plunger structure.

Fig. 28 is a schematic view of a third T-block mounting structure.

Fig. 29 is a drill air cooling schematic.

FIG. 30 is an intake schematic of the first intake port.

Fig. 31 is a schematic view of an evaporation structure.

Fig. 32 is a schematic view of an insulation layer mounting structure.

FIG. 33 is a schematic diagram of a compressor, evaporator and condenser cycle.

Fig. 34 is a schematic view of a hollow shaft construction.

Fig. 35 is a schematic view of the first housing construction of the compressor.

Fig. 36 is a sectional view of the compressor.

Number designation in the figures: 1. a handle; 2. a housing; 3. a drive shaft; 4. a drill bit; 5. a condenser; 6. a barrier cover; 7. a shift cone mechanism; 8. a drive motor; 9. a compressor; 10. heat dissipation holes; 11. a first air intake hole; 13. a second air intake hole; 14. a through hole; 15. a first support plate; 16. a second support plate; 17. a hollow shaft; 18. a linear bearing; 19. a third support plate; 20. a compressor first shell; 22. a condensing structure; 23. a fan; 24. an evaporator; 25. a memory metal; 27. a drive shaft; 28. a first fixed block; 29. a first spring; 30. a second fixed block; 31. a notch; 33. a conical shell; 34. a tapered plate; 35. a first straight gear; 36. a first connecting plate; 37. a second straight gear shaft; 38. a second spur gear; 39. a second connecting plate; 40. a third spur gear; 41. a third straight gear shaft; 42. a third connecting plate; 43. a fourth spur gear; 44. a fourth straight gear shaft; 46. a T-shaped ring; 47. a telescoping device; 48. a first cavity; 49. a central bore; 50. a telescopic rod; 51. a telescopic sleeve; 52. a first guide groove; 53. a first guide block; 54. a second spring; 56. a first T-shaped slot; 57. a first T-shaped block; 58. conducting bars; 59. a first cam; 60. a second cam; 61. a third cam; 62. a second guide block; 63. a third spring; 64. a fourth spring; 65. a H-shaped block; 66. a fifth spring; 68. a third plunger; 69. a second T-shaped slot; 70. a first plunger; 71. a middle hole; 72. a ring groove; 74. a second guide groove; 76. a first square groove; 78. a second cavity; 79. a third guide block; 80. a sixth spring; 81. a compressor second housing; 82. an arc-shaped block; 83. a third guide groove; 84. a fourth guide block; 86. a fourth guide groove; 87. a second plunger; 90. a through groove; 91. a third bore; 92. a hollow shaft hole; 93. a fifth guide groove; 95. an intermediate tank; 96. a long groove; 97. a third T-shaped block; 98. a first air outlet; 99. a tapered cavity; 100. a third air inlet; 101. an evaporation structure; 102. a thermal insulation layer; 103. a fixing device; 104. an annular shell; 105. a pipe connection device; 106. a first working medium channel; 107. a second working medium channel; 108. a third working medium channel; 109. a fourth working medium channel; 110. a fifth working medium channel; 111. a sixth working medium channel; 112. a third T-shaped slot; 113. a spring support block; 114. a first liquid working medium cavity; 115. a second liquid working medium cavity; 116. a limiting ring; 117. a first ring gear; 118. a second ring gear; 119. a third ring gear; 120. a sixth guide groove; 121. and a fifth guide block.

Detailed Description

As shown in fig. 1, 2 and 3, it comprises a variable speed cone mechanism 7, a compressor 9, a condenser 5, an evaporator 24 and a fixing device 103, wherein the variable speed cone mechanism 7, the compressor 9, the condenser 5 and the evaporator 24 are all installed in the fixing device 103.

As shown in fig. 3, the fixing device 103 includes a handle 1, a housing 2, a heat dissipating hole 10, a first air inlet 11, a second air inlet 13, and a through hole 14, as shown in fig. 4, wherein the inner wall of the rear end of the housing 2 is provided with a plurality of heat dissipating holes 10; as shown in fig. 3, a plurality of second air intake holes 13 are formed on the front end surface of the housing 2; as shown in fig. 3, a through hole 14 is formed on the end surface of the housing 2, on which the second air inlet 13 is formed, and the axis of the through hole 14 coincides with the axis of the housing 2; as shown in fig. 3, a plurality of first air inlet holes 11 are formed on the outer circumferential surface of the housing 2 near the heat dissipating holes 10; as shown in fig. 3, the two handles 1 are symmetrically installed on the outer circumferential surface of the housing 2 and close to the heat dissipation holes 10.

As shown in fig. 3, the shift cone mechanism 7 includes a transmission shaft 3, a limiting ring 116, a driving motor 8, a blocking cover 6, a memory metal 25, a second fixing block 30, a notch 31, a first fixing block 28, a drill 4, an annular shell 104, a driving shaft 27, a conical shell 33, a conical plate 34, a first spur gear 35, a first connecting plate 36, a second spur gear shaft 37, a second spur gear 38, a second connecting plate 39, a third spur gear 40, a third spur gear shaft 41, a third connecting plate 42, a fourth spur gear 43, a fourth spur gear shaft 44, a first inner gear ring 117, a second inner gear ring 118, a third inner gear ring 119, a T-shaped ring 46, a telescopic device 47, a first cavity 48, a central hole 49, a first support plate 15, a linear bearing 18, and a third support plate 19, as shown in fig. 5, wherein three first support plates 15 are circumferentially and uniformly installed on the inner wall of the housing 2; as shown in fig. 5, the driving motors 8 are mounted on the end faces of the three first support plates 15; as shown in fig. 2, the retainer ring 116 is mounted on the inner circumferential surface of the housing 2; as shown in fig. 7, the linear bearing 18 is mounted in the housing 2 and cooperates with the retainer ring 116; as shown in fig. 7, three third support plates 19 are circumferentially and uniformly mounted on the inner circumferential surface of the linear bearing 18; the end surface of the annular shell 104 is provided with a central hole 49; as shown in fig. 8, the annular housing 104 is mounted on the three third support plates 19 by fitting the three third support plates 19 through the outer circular surfaces; as shown in fig. 14, conical shell 33 has a first cavity 48 therein; as shown in fig. 12, a first ring gear 117, a second ring gear 118 and a third ring gear 119 are sequentially mounted on the inner wall of the first cavity 48; as shown in fig. 12, one end of the conical shell 33 is mounted on the end face of the annular shell 104, and the axis of the conical shell 33 coincides with the axis of the annular shell 104; one end of the transmission shaft 3 is arranged on the end surface of the conical shell 33 and is superposed with the axis of the transmission shaft 3 and the axis of the conical shell 33; as shown in fig. 6, the drill 4 is mounted on one end of the drive shaft 3; one end of the driving shaft 27 is mounted on the motor shaft, and the other end passes through the central hole 49; a first T-shaped ring 46 groove is formed on the end surface of the first straight gear 35; as shown in fig. 12 and 17, the end surface of the first straight gear 35 with the first T-shaped ring 46 is mounted on the end surface of the drive shaft 27; as shown in fig. 12, the T-ring 46 is mounted on the first spur gear 35 by groove-fitting with the first T-ring 46; as shown in fig. 12, the conical plate 34 is mounted in the conical shell 33 by the engagement of the conical surface thereon with the inner wall of the first cavity 48; as shown in fig. 13, one end of the fourth straight gear shaft 44 is mounted on the end surface of the tapered plate 34; as shown in fig. 13, the fourth spur gear 43 is mounted on the fourth spur gear shaft 44, and the fourth spur gear 43 is engaged with the third ring gear 119 on the conical shell 33 and with the first spur gear 35; as shown in fig. 13, the third connecting plate 42 is mounted on the end face of the fourth straight gear shaft 44; as shown in fig. 13, one end of the third straight gear shaft 41 is mounted on the upper end of one side of the third connecting plate 42; as shown in fig. 13, the third spur gear 40 is mounted on the third spur gear shaft 41, and the third spur gear 40 is engaged with the second ring gear 118 on the conical shell 33 and with the first spur gear 35; as shown in fig. 13, the second connecting plate 39 is mounted on the end face of the third straight gear shaft 41; as shown in fig. 13, a second straight gear shaft 37 is installed at an upper end of one side of the second connection plate 39; as shown in fig. 13, the second spur gear 38 is mounted on the second spur gear shaft 37, and the second spur gear 38 is engaged with the first ring gear 117 on the conical shell 33 and with the first spur gear 35; as shown in fig. 13, the upper end side of the first connecting plate 36 is mounted on the second straight gear shaft 37; as shown in fig. 15, the expansion device 47 has one end mounted on the end face of the T-shaped ring 46 and the other end mounted on the side face of the first connecting plate 36; as shown in fig. 9 and 10, four first fixing blocks 28 are mounted on an end face of one end of the driving motor 8; as shown in fig. 10, four second fixing blocks 30 are mounted on the end surface of the other end of the driving motor 8; as shown in fig. 11, the two memory metals 25 are both provided with notches 31; one of the memory metals 25 is mounted on four first fixing blocks 28; another memory metal 25 is mounted on the four second fixing blocks 30; as shown in fig. 9, the blocking cover 6 is mounted on the memory metal 25 near one end of the conical shell 33, and the blocking cover 6 has elasticity.

as shown in fig. 16, the telescopic device 47 includes a telescopic rod 50, a telescopic sleeve 51, a first guide slot 52, a first guide block 53, and a second spring 54, wherein two first guide slots 52 are symmetrically formed on an inner wall of the telescopic sleeve 51; as shown in fig. 16, two first guide blocks 53 are symmetrically installed on the outer circumferential surface of the telescopic rod 50; as shown in fig. 16, the telescopic rod 50 is installed in the telescopic sleeve 51 by the cooperation of the first guide block 53 installed thereon and the first guide groove 52; as shown in fig. 16, the second spring 54 is nested on the outer circumferential surface of the telescopic rod 50, and one end of the second spring 54 is mounted on the end surface of the telescopic sleeve 51, and the other end is mounted on the first guide block 53.

As shown in fig. 8, the condenser 5 includes a condensing structure 22 and a fan 23, wherein the condensing structure 22 is mounted on the inner wall of the rear end of the housing 2; the fan 23 is mounted on the motor shaft, and the fan 23 is located at the front side of the condensing structure 22.

As shown in fig. 9, the evaporator 24 includes a first spring 29, a first air outlet 98, a tapered cavity 99, a third air inlet 100, an evaporation structure 101, and a heat insulation layer 102, as shown in fig. 31, wherein the evaporation structure 101 has the tapered cavity 99 therein, and the third air inlet 100 is opened on the side of the tapered cavity 99 with the smaller cross-sectional area; as shown in FIG. 31, the larger cross-sectional area side of the tapered chamber 99 is provided with a first outlet port 98; as shown in fig. 9, the plurality of evaporation structures 101 are circumferentially and uniformly located outside the driving motor 8; both ends of each evaporation structure 101 are respectively installed between the two memory metals 25 through the first spring 29 and the second spring 54; as shown in fig. 32, each evaporation structure 101 is provided with a heat insulation layer 102 on the side facing away from the motor.

As shown in fig. 18 and 19, the compressor 9 includes a second support plate 16, a sixth guide groove 120, a fifth guide block 121, a spring support block 113, a third T-shaped groove 112, a hollow shaft 17, a first T-shaped groove 56, a first T-shaped block 57, a guide bar 58, a first liquid working medium chamber 114, a second liquid working medium chamber 115, a first cam 59, a second cam 60, a third cam 61, a second guide block 62, a third spring 63, a fourth spring 64, an i-shaped block 65, a fifth spring 66, a third plunger 68, a second T-shaped groove 69, a first plunger 70, an intermediate hole 71, an annular groove 72, a second guide groove 74, a first square groove 76, a second cavity 78, a third guide block 79, a sixth spring 80, a second casing 81 of the compressor, an arc-shaped block 82, a third guide groove 83, a fourth guide block 84, a fourth guide groove 86, a second plunger 87, a through groove 90, a third hole 91, a hollow shaft hole 92, a fifth guide groove 93, an intermediate groove 95, The compressor comprises a long groove 96, a third T-shaped block 97, a first compressor shell 20, a pipe connecting device 105, a first working medium channel 106, a second working medium channel 107, a third working medium channel 108, a fourth working medium channel 109, a fifth working medium channel 110 and a sixth working medium channel 111, wherein as shown in fig. 6, three second support plates 16 are circumferentially and uniformly arranged on the inner circular surface of the shell 2, and are positioned between a blocking cover 6 and an annular shell 104; as shown in fig. 6, the pipe connecting means 105 is mounted on the three second support plates 16 by the cooperation of the outer circumferential surfaces with the three second support plates 16; as shown in fig. 19, the hollow shaft 17 is nested outside the drive shaft 27 and is mounted on the inner circumferential surface of the pipe connecting device 105; as shown in fig. 34, a first working medium channel 106, a second working medium channel 107, a third working medium channel 108, a fourth working medium channel 109, a fifth working medium channel 110, and a sixth working medium channel 111 are formed on the hollow shaft 17; as shown in fig. 20, the first compressor housing 20 has a second cavity 78 therein, and the first compressor housing 20 has a central hole 71 formed in an end surface thereof; as shown in fig. 20, two second guide grooves 74 are symmetrically formed on the inner circumferential surface of the second cavity 78; as shown in fig. 20, the inner circular surface of the second cavity 78 is provided with a first square groove 76, and the first square groove 76 and the two second guide grooves 74 are distributed at 90 degrees around the axis of the first shell 20 of the compressor; as shown in fig. 20, the end surface of the first square groove 76 is provided with a second T-shaped groove 69; as shown in fig. 35, a third T-shaped groove 112 is formed on the side surface of the first square groove 76; as shown in fig. 20, the inner wall of one end of the first casing 20 of the compressor is provided with a ring groove 72; as shown in fig. 19, the first casing 20 of the compressor is mounted on the hollow shaft 17 through the middle hole 71 and the outer circumferential surface of the hollow shaft 17; as shown in fig. 25, the compressor second housing 81 has a third cavity therein; one end of the third cavity is provided with a hollow shaft hole 92; as shown in fig. 25, a through groove 90 is formed on the inner circumferential surface of the third cavity, and the through groove 90 is matched with the first square groove 76; as shown in fig. 25, a fifth guide groove 93 is formed on an end surface of the through groove 90; the spring supporting block 113 is installed on the end surface of the through groove 90 and is matched with the fifth guide groove 93; as shown in fig. 21, two third guide shoes 79 are symmetrically installed on the outer circumferential surface of the second casing 81 of the compressor; as shown in fig. 21, the second compressor housing 81 is mounted in the first compressor housing 20 by the engagement of the third guide 79 with the second guide groove 74; as shown in fig. 3, a hollow shaft hole 92 of the second casing 81 of the compressor is engaged with the outer circumferential surface of the hollow shaft 17; as shown in fig. 21, the sixth spring 80 is located in the second guide groove 74; one end of a sixth spring 80 is arranged on the end surface of the second guide groove 74, and the other end is arranged on the end surface of the third guide block 79; the end surface of the first cam 59 is provided with a groove which is not penetrated; as shown in fig. 23, two third guide grooves 83 are symmetrically formed on the side surface of the non-through groove of the first cam 59; as shown in fig. 22, the first cam 59 is mounted on the outer circumferential surface of the hollow shaft 17; as shown in fig. 22 and 23, the third cam 61 is mounted on the outer circumferential surface of the hollow shaft 17; as shown in fig. 24, two fourth guide blocks 84 are symmetrically installed on the side of the second cam 60; as shown in fig. 23, the second cam 60 is mounted on the end surface of the third cam 61, and the fourth guide block 84 mounted thereon is engaged with the third guide groove 83; the arc-shaped block 82 is arranged on the outer circular surface of the first cam 59; as shown in fig. 22, the arcuate blocks 82 engage the annular grooves 72; the two guide bars 58 are symmetrically arranged on the side surface of the second plunger 87; as shown in fig. 26, the first T-block 57 is mounted on the end face of the second plunger 87; as shown in fig. 19, the second plunger 87 is mounted on the first compressor casing 20 by the cooperation of the first T-block 57 mounted thereon and the third T-shaped groove 112; the second plunger 87 is matched with the outer circular surface of the hollow shaft 17, the first cam 59 and the second cam 60; as shown in fig. 22, the fifth spring 66 has one end mounted on the end surface of the first T-block 57 and the other end mounted on the end surface of the third T-shaped groove 112; as shown in fig. 27, the first plunger 70 has an intermediate groove 95 therein; as shown in fig. 27, two elongated grooves 96 are symmetrically formed on the side surface of the intermediate groove 95; as shown in fig. 28, the end of the first plunger 70 remote from the intermediate groove 95 is slotted with a T-shaped slot; as shown in fig. 36, the first plunger 70 is mounted on the second plunger 87 by the engagement of the guide bar 58 with the elongated slot 96, and the second plunger 87 engages the outer circumferential surface of the hollow shaft 17, the first cam 59, and the second cam 60; as shown in fig. 19, the i-shaped block 65 is mounted on the first compressor casing 20 by engagement with the second T-shaped slot 69; as shown in fig. 19, the fourth spring 64 has one end mounted on the end surface of the first plunger 70 and the other end mounted on the end surface of the shaped block 65; as shown in fig. 28, a third T-shaped block 97 is mounted on an end surface of the third plunger 68, and a second guide block 62 is mounted on the other end surface of the third plunger 68; the third plunger 68 is mounted on the first plunger 70 through a third T-shaped block 97 in cooperation with a T-shaped slot formed in the first plunger 70, and the second guide block 62 on the third plunger 68 is in cooperation with the fifth guide groove 93 on the second compressor housing 81; as shown in fig. 19, one end of the third spring 63 is mounted on the end surface of the fifth guide groove 93, and the other end is mounted on the end surface of the second guide block 62; as shown in fig. 36, the third plunger 68 is engaged with the outer circumferential surface of the hollow shaft 17 and the third projection; the first cam 59, the second cam 60, the third cam 61, the first plunger 70, the second plunger 87, the third plunger 68, the first compressor shell 20 and the second compressor shell 81 jointly form a first liquid working medium cavity 114 and a second liquid working medium cavity 115; as shown in fig. 12 and 13, a sixth guide groove 120 is formed on the outer circumferential surface of the hollow shaft 17 penetrating through the hollow shaft hole 92, and a fifth guide block 121 is mounted at one end of the first connecting plate 36; the sixth guide groove 120 is engaged with the fifth guide block 121.

As shown in fig. 2 and 34, the pipe connecting device 105 is connected to the evaporation structure 101 through a hose; the evaporation structure 101 is connected with the condensation structure 22 through a hose; the condensation structure 22 is connected to the pipe connection 105 by a hose.

As shown in fig. 13, the first straight gear 35 is keyed to the drive shaft 27.

As shown in fig. 13, the second spur gear 38 is mounted on the second spur gear shaft 37 through a bearing.

As shown in fig. 13, the third spur gear 40 is mounted on a third spur gear shaft 41 through a bearing.

As shown in fig. 13, the fourth spur gear 43 is mounted on a fourth spur gear shaft 44 through a bearing.

As shown in fig. 9 and 10, when the temperature of the memory metal 25 is 50 degrees or less, the memory metal 25 maintains a certain shape, and there is no gap between the adjacent evaporation structures 101; when the temperature of the memory metal 25 is 50 degrees or more, the memory metal 25 is deformed, and a gap is generated between the adjacent evaporation structures 101.

as shown in fig. 2, a liquid working medium tank is installed in the pipe connection device 105.

In summary, the following steps:

The invention designs a drilling machine for indoor decoration based on automatic cooling and speed regulation of a compressor 9, which has the functions of automatically reducing temperature, automatically regulating speed, reducing noise and continuously working; the speed changing cone mechanism 7 in the invention has the function of adjusting the speed of the drill bit 4; the compressor 9 has the function of compressing the gaseous working medium into the condenser; the evaporator has the function of keeping the temperature of the motor at a certain value; the condenser is used for changing the high-pressure gaseous working medium flowing from the compressor into a liquid state. Then the liquid working medium is conveyed into an evaporator; the fixing device 103 is used for fixing the variable speed cone mechanism 7, the compressor 9, the condenser 5 and the evaporator 24; the pipe connecting device 105 is used for connecting the evaporation structure 101 with the compressor 9, and can convey the compressed high-pressure liquid working medium into the evaporation structure 101.

The fixing device 103 is used for fixing the variable speed cone mechanism 7, the compressor 9, the condenser 5 and the evaporator 24; the end face of the shell 2 is provided with a plurality of heat dissipation holes 10 for facilitating air flow and heat dissipation; the shell 2 is provided with a plurality of second air inlet holes 13 for facilitating air to enter; the effect that a plurality of first air inlet holes 11 are circumferentially formed on the outer circumferential surface of the shell 2 close to the heat dissipation hole 10 is that when the evaporator 24 cannot normally cool the motor, the temperature rises to deform the two memory metals 25 so that a gap exists between the adjacent evaporation structures 101, as shown in fig. 29, when air enters from the second air inlet hole 13, the blocking cover 6 prevents the air from taking away cold air around the evaporator 24, the air flows through the upper side of the evaporator 24, as shown in fig. 30, the flowing air forms negative pressure, and the outside air is taken into the periphery of the evaporator 24 under the action of the negative pressure, so that the motor is continuously cooled, and the effect of reducing the temperature of the motor is achieved; the two handles 1 are symmetrically arranged on the outer circular surface of the shell 2 and are used for facilitating the control of a person on the drilling machine.

The speed changing cone mechanism 7 has the function of adjusting the speed of the drill bit 4; the three first supporting plates 15 are uniformly arranged on the inner wall of the shell 2 in the circumferential direction and are used for fixing the driving motor 8; three third supporting plates 19 are uniformly arranged on the inner circumferential surface of the linear bearing 18 in the circumferential direction and are used for fixing the annular shell 2; the conical shell 33 is provided with a first cavity 48 for accommodating the first straight gear 35, the second straight gear 38, the third straight gear 40, the fourth straight gear 43, the second straight gear shaft 37, the third straight gear shaft 41, the fourth straight gear shaft 44, the second connecting plate 39 and the third connecting plate 42; the inner wall of the first cavity 48 is provided with a first inner gear ring 117, a second inner gear ring 118 and a third inner gear ring 119, and the first straight gear 35 is driven to move when the motor shaft moves, the first straight gear 35 drives the second straight gear 38 to move, the second straight gear 38 drives the first inner gear ring 117 to move, the first inner gear ring 117 drives the conical shell 33 to move, and the conical shell 33 drives the transmission shaft 3 to move; the transmission shaft 3 moves the belt bit 4; the drill 4 is used for drilling and processing the wall surface; the conical shell 33 is designed such that when the drill bit 4 cannot meet a hard wall surface, the drill bit 4 cannot continue to drill forward, and when a forward force is applied to the drilling machine by a person, the drill bit 4 is moved toward the housing 2 by the reaction force of the wall surface against the drill bit 4; the moving drill bit 4 drives the transmission shaft 3 to move; the transmission shaft 3 drives the conical shell 33 to move; the annular shell 104 will also move with the conical shell 33 under the action of the linear bearing 18; the moving conical shell 33 will move the conical plate 34 mounted on the conical shell 33; meanwhile, the first inner gear ring 117, the second inner gear ring 118 and the third inner gear ring 119 mounted in the conical shell 33 move together; the conical plate 34 will drive the fourth spur gear shaft 44 to move in the axial direction; the fourth spur gear shaft 44 will drive the fourth spur gear 43 mounted thereon to move; the third connecting plate 42 is connected with a fourth straight gear shaft 44; one end of the third straight gear shaft 41 is connected with the third connecting plate 42, and the other end is connected with the second connecting plate 39; one end of the second straight gear shaft 37 is connected with the second connecting plate 39, and the other end is connected with the first connecting plate 36; the movement of the fourth straight gear shaft 44 will drive the third connecting plate 42; the third connecting plate 42 drives the third straight gear shaft 41 to move; the third spur gear shaft 41 will drive the third spur gear 40 to move; the third straight gear shaft 41 drives the second connecting plate 39 to move; the second connecting plate 39 drives the second straight gear shaft 37 to move; the second straight gear shaft 37 will drive the first connecting plate 36 to move; at this time, the third spur gear 40 will be meshed with the first spur gear 35, and since the diameter of the second internal gear 118 is smaller than that of the first internal gear 117, the conical shell 33 drives the drill 4 to rotate at an accelerated speed; thereby enabling the drill 4 to have a faster rotational speed and drilling capability for hard objects; when the first straight gear 35 is meshed with the third straight gear 40 and the wall surface still can not be drilled, the drill bit 4 continues to move towards the shell 2 under the action of manpower; thereby causing the first spur gear 35 to mesh with the fourth spur gear 43; the conical shell 33, the transmission shaft 3 and the drill bit 4 are made to have high speed, and the drill bit 4 with the increased speed can continuously process the wall surface; thereby achieving the purpose of drilling harder wall surfaces; the telescopic device 47 has one end mounted on the end surface of the T-shaped ring 46 and the other end mounted on the side surface of the first connecting plate 36, so that when the conical shell 33 moves to drive the first connecting plate 36 to move, the first connecting plate 36 will drive the telescopic rod 50 to move, and the first guide block 53 on the telescopic rod 50 will move along the first guide groove 52, and at the same time, play a role of stabilizing the driving shaft 27; the cooperation of the first connecting plate 36 with the hollow shaft 17 is such as to limit the rotation of the first connecting plate 36 with the conical shell 33; the second spring 54 acts to give the first guide 53 a force for returning; four first fixing blocks 28 are mounted on the end face of the motor and used for fixing the memory metal 25; four second fixing blocks 30 are arranged on the end face of the motor and are used for fixing the memory metal 25; the two memory metals 25 are provided with notches 31 for facilitating the deformation of the memory metals 25; the blocking cover 6 is arranged on the end face of the memory metal 25, and the blocking cover 6 has elasticity so that the blocking plate can deform along with the memory metal 25; the stop collar 116 serves to limit the movement of the linear bearing 18 and thus the annular housing 104.

As shown in fig. 33, the fan 23 is installed on the motor shaft and is used for blowing the heat in the condensation structure 22 out of the drilling machine, the gaseous working medium is compressed into the high-temperature gaseous working medium by the compressor 9, the high-temperature gaseous working medium enters the condenser, the condenser 5 liquefies the gaseous working medium into the liquid working medium, then the temperature of the motor is reduced in the evaporator 24, the low-temperature gaseous working medium takes away the heat of the motor, and then the motor enters the compressor 9 through a pipeline to perform the next cooling cycle.

the evaporator 24 in the invention cools the motor; the conical cavity 99 is arranged in the evaporation structure 101, so that the liquid working medium is evaporated into a gas state in the evaporation tube; a third air inlet 100 is formed in one side of the conical cavity 99 with a smaller cross section area, and is used for allowing low-temperature liquid working medium to enter an evaporation structure 101; the larger side of the cross-sectional area of the conical cavity 99 is provided with a first air outlet 98 for facilitating the outflow of the gaseous working medium; the evaporation structures 101 are positioned outside the motor, and gaps are not formed among the connected evaporation structures 101 to prevent cold air from flowing out; one end of each evaporation structure 101 is arranged on the end face of one memory metal 25 through a first spring 29, and the other end of each evaporation structure 101 is arranged on the end face of the other memory metal 25 through a second spring 54 and is used for connecting the evaporation structure 101 with the memory metal 25; the function of the plurality of insulation layers 102 mounted on the end surfaces of the corresponding evaporation structures 101 is to keep the temperature of the evaporation structures 101 at a lower temperature through the insulation function; the first spring 29 has a function of absorbing the vibration of the motor to block the vibration of the motor from being transmitted to the housing 2, thereby achieving a noise reduction function.

the compressor 9 of the invention is used for driving the liquid working medium to flow and providing motive power for the refrigeration cycle; three second support plates 16 are circumferentially uniformly mounted on the inner circumferential surface of the housing 2 for fixing the pipe connection device 105; the hollow shaft 17 is nested outside the driving shaft 27 and is arranged on the inner circumferential surface of the pipe connecting device 105 to fix the first cam 59, the second cam 60 and the third cam 61; the hollow shaft 17 is provided with a first working medium channel 106, a second working medium channel 107 and a third working medium channel 108 which are used for leading the liquid working medium to flow into a first liquid working medium cavity 114; the hollow shaft 17 is provided with a fourth working medium channel 109, a fifth working medium channel 110 and a sixth working medium channel 111 which are used for discharging liquid working medium into a condensation structure; when the annular shell 104 moves, the first compressor shell 20 is driven to move, the space in the first liquid working medium cavity 114 is increased by the moving first compressor shell 20, the space of the second liquid working medium is reduced, and the liquid working medium is discharged to the pipe connecting device 105 by the reduced space; the conical shell 33, which moves axially with respect to the casing 2, will move the annular shell 104, and the moving annular shell 104 will move the first casing 20 of the compressor; the first cam 59 is connected to the first compressor casing 20 by means of an arc-shaped block 82; the movement of the first compressor shell 20 drives the arc-shaped block 82 to move, the arc-shaped block 82 drives the first cam 59 to move, and the first cam 59 moves under the matching of the second guide groove 74 and the third guide block 79; the second plunger 87 is connected to the first compressor shell 20 by means of a first T-block 57; the second plunger 87 is connected to the first plunger 70 by the guide bar 58; the moving first housing 20 of the compressor moves the first T-block 57, the first T-block 57 moves the second plunger 87, and the guide bar 58 on the second plunger 87 moves along the elongated slot 96 on the first plunger 70; at this time, the space between the first liquid working medium cavity 114 and the second liquid working medium cavity 115 becomes larger; the enlarged space can accommodate more liquid working media; more liquid working media can better cool the driving motor 8; the rotating annular shell 104 will drive the first compressor shell 20 to move, and the moving first compressor shell 20 will drive the second compressor shell 81 to move under the action of the third guide block 79; the moving first compressor housing 20 and the second compressor housing 81 will bring the first plunger 70, the second plunger 87 and the third plunger 68 to move together; at this time, the first cam 59 and the second cam 60 press the first plunger 70 and the second plunger 87, so that the first plunger 70 and the second plunger 87 move along the first square groove 76; the third cam 61 will press the third plunger 68 and the third plunger 68 will move along the channel 90; the moving third plunger 68 will cause the third T-block 97 thereon to move along the third T-shaped slot 112; the second guide block 62 moves along the fifth guide groove 93; the sixth spring 80 is located in the second guide groove 74; one end of the sixth spring 80 is mounted on the end surface of the second guide groove 74, and the other end of the sixth spring is mounted on the end surface of the third guide block 79 and is used for providing a return acting force for the third guide block 79; one end of the fifth spring 66 is mounted on the end surface of the first T-shaped block 57, and the other end is mounted on the end surface of the third T-shaped groove 112 to provide restoring force to the first T-shaped block 57; the fourth spring 64 is mounted on the end surface of the first plunger 70 at one end and on the end surface of the shaped block 65 at the other end to give a return force to the first plunger 70.

The liquid working medium tank in the invention has the function of offsetting the influence of the space change of the compressor 9 on the refrigeration cycle.

In the use process, when the drilling machine is not in operation, the first spring 29, the second spring 54, the third spring 63, the fourth spring 64, the fifth spring 66 and the sixth spring 80 are in a free telescopic state; the first spur gear 35 is meshed with the second spur gear 38; when the drilling machine works, the motion of the motor shaft drives the driving shaft 27 to move, the driving shaft 27 drives the first straight gear 35 to move, the first straight gear 35 drives the second straight gear 38 to move, the second straight gear 38 drives the first inner gear ring 117 on the conical shell 33 to move, and the first inner gear ring 117 drives the conical shell 33 to move; the conical shell 33 will drive the transmission shaft 3 to move, and the transmission shaft 3 will drive the drill bit 4 to move; the drill bit 4 will drill the wall; the movement of the conical shell 33 will drive the annular shell 104 to move, the annular shell 104 will drive the first compressor housing 20 to move, and the first compressor housing 20 will drive the second compressor housing 81 to move; the compressor first housing 20 will carry the first plunger 70 and the second plunger 87; the compressor second housing 81 will move the third plunger 68; the space of second liquid working medium chamber 115 will be reduced by moving first plunger 70, second plunger 87 and third plunger 68, and third spring 63, fourth spring 64 and fifth spring 66 are in a compressed state; so that the liquid working medium in the second liquid working medium cavity 115 flows into the condenser through the pipe connecting device 105; the condenser is cooled by the fan, the vaporized liquid working medium is condensed into the liquid working medium under the action of the condenser, the liquid working medium flows into the condenser to be evaporated, air enters the drilling machine from the air inlet in the process and flows to the position of the fan from the upper end of the heat insulation layer of the evaporator, and then the working medium enters the compressor 9 again through the hose and pipe connecting device 105; the evaporation structure 101 will cool the motor; when the drilling machine works for a long time, the temperature of the motor cannot be reduced by the evaporation structure 101, when the temperature reaches more than 50 ℃, the memory metal 25 deforms, the adjacent evaporation structures 101 have gaps due to the deformed memory metal 25, and at the moment, external air enters the drilling machine through the first air inlet hole 11 because a negative pressure cavity is formed when the air enters the evaporation structure; the air will continue to cool the motor, and after the temperature is reduced, the memory metal 25 will recover to the original shape; when the wall that meets is hard, hard wall can make drill bit 4 for shell 2 along self axial motion, the drill bit 4 of motion will drive transmission shaft 3 in proper order, conical shell 33, conical plate 34, fourth spur gear axle 44, fourth spur gear 43, third connecting plate 42, third spur gear axle 41, third spur gear 40, second connecting plate 39, second spur gear axle 37, second spur gear 38, first connecting plate 36, telescopic link 50 motion, second telescopic link 50 at this moment is in the compression state; at this time, the first straight gear 35 is meshed with the third straight gear 40, under the action of the third straight gear 40 and the second inner gear ring 118, the speed of the conical shell 33 is increased, the speed of the transmission shaft 3 and the speed of the drill bit 4 are increased due to the reduced conical shell 33, and therefore the wall surface can be drilled with larger drilling capacity; when a harder wall surface is met, the drill bit 4 moves relative to the shell 2 continuously, so that the first straight gear 35 is meshed with the fourth straight gear 43, and the conical shell 33 obtains higher speed under the action of the third inner gear ring 119, so that the drilling capacity of the transmission shaft 3 and the drill bit 4 is higher, and the effect of drilling the harder wall surface is achieved; the higher the hardness of the wall surface drilled by the drill bit 4 is, the higher the power consumed by the driving motor 8 is, the more the driving motor 8 generates heat, in order to cool the driving motor 8, the axial movement of the conical shell 33 relative to the shell 2 can drive the annular shell 104 to move, the annular shell 104 can drive the first shell 20 of the compressor to move, and at the moment, the sixth spring 80 is in a compressed state; the compressor first shell 20 will carry the first cam 59; the compressor first shell 20 will bring the second plunger 87 into motion; the space between the first liquid working medium cavity 114 and the second liquid working medium cavity 115 is enlarged by the moving first cam 59 and the second plunger 87; the drilling machine generates more heat when moving at low speed, and the space between the first liquid working medium cavity 114 and the second liquid working medium cavity 115 is enlarged, so that more liquid working media enter the first liquid working medium cavity 114, more liquid working media take away more heat, and more liquid working media enter the evaporator 24 to be evaporated, and the motor can be cooled better; after the hard wall surface is drilled, the telescopic rod 50 moves under the action of the second spring 54, and the movement of the telescopic rod 50 sequentially drives the first connecting plate 36, the second straight gear shaft 37, the second straight gear 38, the second connecting plate 39, the third straight gear shaft 41, the third straight gear 40, the third connecting plate 42, the fourth straight gear shaft 44, the fourth straight gear 43, the conical plate 34, the conical shell 33, the transmission shaft 3 and the drill bit 4 to move; the first spur gear 35 at this time is engaged with the second spur gear 38; the moving conical shell 33 will bring the annular shell 104 into motion; under the combined action of the annular shell 104 and the sixth spring 80, the first shell 20, the first cam 59 and the second plunger 87 of the compressor are driven to move in sequence; thereby restoring the compressor 9 to its original position.

Claims

1. The utility model provides an automatic drilling machine of cooling and speed governing which characterized in that: the variable speed cone device comprises a variable speed cone mechanism, a compressor, a condenser, an evaporator and a fixing device, wherein the variable speed cone mechanism, the compressor, the condenser and the evaporator are all arranged in the fixing device;

The fixing device comprises a handle, a shell, heat dissipation holes, a first air inlet hole, a second air inlet hole and a through hole, wherein the inner wall of the rear end of the shell is provided with a plurality of heat dissipation holes; a plurality of second air inlet holes are formed on the front end surface of the shell; the end surface of the shell, which is provided with the second air inlet hole, is provided with a through hole, and the axis of the through hole is superposed with the axis of the shell; a plurality of first air inlets are formed in the circumferential direction of the outer circle surface of the shell, which is close to the heat dissipation hole; the two handles are symmetrically arranged on the outer circular surface of the shell and are close to the heat dissipation holes;

The speed change cone mechanism comprises a transmission shaft, a limiting ring, a driving motor, a blocking cover, a memory metal, a second fixed block, a notch, a first fixed block, a drill bit, an annular shell, a driving shaft, a conical shell, a conical plate, a first straight gear, a first connecting plate, a second straight gear shaft, a second straight gear, a second connecting plate, a third straight gear shaft, a third connecting plate, a fourth straight gear shaft, a first inner gear ring, a second inner gear ring, a third inner gear ring, a T-shaped ring, a telescopic device, a first cavity, a center hole, a first supporting plate, a linear bearing and a third supporting plate, wherein the three first supporting plates are uniformly arranged on the inner wall of the shell in the circumferential direction; the driving motors are arranged on the end faces of the three first supporting plates; the limiting ring is arranged on the inner circular surface of the shell; the linear bearing is arranged in the shell and is matched with the limiting ring; the three third supporting plates are uniformly arranged on the inner circular surface of the linear bearing in the circumferential direction; the end surface of the annular shell is provided with a central hole; the annular shell is matched with the three third supporting plates through the outer circular surface and is arranged on the three third supporting plates; the conical shell is internally provided with a first cavity; a first inner gear ring, a second inner gear ring and a third inner gear ring are sequentially arranged on the inner wall of the first cavity; one end of the conical shell is arranged on the end surface of the annular shell, and the axis of the conical shell is superposed with the axis of the annular shell; one end of the transmission shaft is arranged on the end surface of the conical shell and is superposed with the axis of the transmission shaft and the axis of the conical shell; the drill bit is arranged at one end of the transmission shaft; one end of the driving shaft is arranged on the motor shaft, and the other end of the driving shaft penetrates through the central hole; a first T-shaped ring groove is formed in the end face of the first straight gear; the end face of the first straight gear provided with the first T-shaped annular groove is arranged on the end face of the driving shaft; the T-shaped ring is arranged on the first straight gear through the matching with the first T-shaped ring groove; the conical plate is arranged in the conical shell through the matching of the conical surface on the conical plate and the inner wall of the first cavity; one end of a fourth straight gear shaft is arranged on the end face of the conical plate; the fourth straight gear is arranged on a fourth straight gear shaft, and the fourth straight gear is matched with the third inner gear ring on the conical shell and is matched with the first straight gear; the third connecting plate is arranged on the end face of the fourth straight gear shaft; one end of a third straight gear shaft is arranged at the upper end of one side of the third connecting plate; the third straight gear is arranged on a third straight gear shaft, and the third straight gear is matched with the second inner gear ring on the conical shell and is matched with the first straight gear; the second connecting plate is arranged on the end face of the third straight gear shaft; the second straight gear shaft is arranged at the upper end of one side of the second connecting plate; the second straight gear is arranged on a second straight gear shaft, and the second straight gear is matched with the first inner gear ring on the conical shell and is matched with the first straight gear; the side surface of the upper end of the first connecting plate is arranged on the second straight gear shaft; one end of the telescopic device is arranged on the end surface of the T-shaped ring, and the other end of the telescopic device is arranged on the side surface of the first connecting plate; the four first fixed blocks are arranged on the end face of one end of the driving motor; the four second fixed blocks are arranged on the end face of the other end of the driving motor; notches are formed on the two memory metals; one of the memory metals is arranged on the four first fixed blocks; the other memory metal is arranged on the four second fixed blocks; the blocking cover is arranged on the memory metal close to one end of the conical shell and has elasticity;

The telescopic device comprises a telescopic rod, a telescopic sleeve, a first guide groove, a first guide block and a second spring, wherein two first through guide grooves are symmetrically formed in the inner wall of the telescopic sleeve; the two first guide blocks are symmetrically arranged on the outer circular surface of the telescopic rod; the telescopic rod is arranged in the telescopic sleeve through the matching of a first guide block arranged on the telescopic rod and a first guide groove; the second spring is nested on the outer circular surface of the telescopic rod, one end of the second spring is arranged on the end surface of the telescopic sleeve, and the other end of the second spring is arranged on the first guide block;

The condenser comprises a condensation structure and a fan, wherein the condensation structure is arranged on the inner wall of the rear end of the shell; the fan is arranged on the motor shaft and is positioned on the front side of the condensation structure;

The evaporator comprises a first spring, a first air outlet, a conical cavity, a third air inlet, an evaporation structure and a heat insulation layer, wherein the conical cavity is arranged in the evaporation structure, and the third air inlet is formed in the side, with the smaller cross-sectional area, of the conical cavity; a first air outlet is formed in the larger cross-sectional area side of the conical cavity; the plurality of evaporation structures are uniformly arranged on the outer side of the driving motor in the circumferential direction; two ends of each evaporation structure are respectively arranged between the two memory metals through a first spring and a second spring; a heat insulation layer is arranged on one side of each evaporation structure, which is back to the motor;

The compressor comprises a second supporting plate, a sixth guide groove, a fifth guide block, a spring supporting block, a third T-shaped groove, a hollow shaft, a first T-shaped groove, a first T-shaped block, a guide strip, a first liquid working medium cavity, a second liquid working medium cavity, a first cam, a second cam, a third cam, a second guide block, a third spring, a fourth spring, a working block, a fifth spring, a third plunger piston, a second T-shaped groove, a first plunger piston, a middle hole, a ring groove, a second guide groove, a first square groove, a second cavity, a third guide block, a sixth spring, a second shell, an arc-shaped block, a third guide groove, a fourth guide block, a fourth guide groove, a second plunger piston, a through groove, a third hole cavity, a hollow shaft hole, a fifth guide groove, a middle groove, a strip groove, a third T-shaped block, a first shell, a pipe connecting device, a first working medium channel, a second working medium channel, a third working medium channel, a fourth, The third working medium channel is arranged on the inner circular surface of the shell, and the third support plates are arranged between the blocking cover and the annular shell; the pipe connecting device is arranged on the three second supporting plates through the matching of the outer circular surface and the three second supporting plates; the hollow shaft is nested outside the driving shaft and is arranged on the inner circular surface of the pipe connecting device; a first working medium channel, a second working medium channel, a third working medium channel, a fourth working medium channel, a fifth working medium channel and a sixth working medium channel are formed in the hollow shaft; the first shell of the compressor is internally provided with a second cavity, and the end surface of the first shell of the compressor is provided with a middle hole; two second guide grooves are symmetrically formed in the inner circular surface of the second cavity; a first square groove is formed in the inner circular surface of the second cavity, and the first square groove and the two second guide grooves are distributed at an angle of 90 degrees around the axis of the first shell of the compressor; a second T-shaped groove is formed in the end face of the first square groove; a third T-shaped groove is formed in the side face of the first square groove; the inner wall of one end of the first shell of the compressor is provided with a ring groove; the first shell of the compressor is matched with the outer circular surface of the hollow shaft through the middle hole and is arranged on the hollow shaft; the second shell of the compressor is provided with a third cavity; one end of the third cavity is provided with a hollow shaft hole; a through groove is formed in the inner circular surface of the third cavity and matched with the first square groove; a fifth guide groove is formed in the end face of the through groove; the spring supporting block is arranged on the end face of the through groove and matched with the fifth guide groove; the two third guide blocks are symmetrically arranged on the outer circular surface of the second shell of the compressor; the second shell of the compressor is arranged in the first shell of the compressor through the matching of the third guide block and the second guide groove; a hollow shaft hole on the second outer shell of the compressor is matched with the outer circular surface of the hollow shaft; the sixth spring is positioned in the second guide groove; one end of a sixth spring is arranged on the end surface of the second guide groove, and the other end of the sixth spring is arranged on the end surface of the third guide block; the end surface of the first cam is provided with a groove which is not penetrated; two third guide grooves are symmetrically formed in the side surface of the groove which is not penetrated through the first cam; the first cam is arranged on the outer circular surface of the hollow shaft; the third cam is arranged on the outer circular surface of the hollow shaft; the two fourth guide blocks are symmetrically arranged on the side surface of the second cam; the second cam is arranged on the end surface of the third cam, and a fourth guide block arranged on the second cam is matched with the third guide groove; the arc-shaped block is arranged on the outer circular surface of the first cam; the arc-shaped block is matched with the annular groove; the two guide bars are symmetrically arranged on the side surface of the second plunger; the first T-shaped block is arranged on the end face of the second plunger; the second plunger is arranged on the first shell of the compressor through the matching of a first T-shaped block arranged on the second plunger and a third T-shaped groove; the second plunger is matched with the outer circular surface of the hollow shaft, the first cam and the second cam; one end of a fifth spring is arranged on the end surface of the first T-shaped block, and the other end of the fifth spring is arranged on the end surface of the third T-shaped groove; the first plunger is internally provided with an intermediate groove; two long grooves are symmetrically arranged on the side surface of the middle groove; a T-shaped groove is formed in the end face, away from the middle groove, of the first plunger; the first plunger is arranged on the second plunger through the matching of the guide bar and the long groove, and the second plunger is matched with the outer circular surface of the hollow shaft, the first cam and the second cam; the shape block is arranged on the first shell of the compressor through the matching with the second T-shaped groove; one end of a fourth spring is arranged on the end face of the first plunger, and the other end of the fourth spring is arranged on the end face of the I-shaped block; a third T-shaped block is arranged on the end face of the third plunger, and a second guide block is arranged on the other end face of the third plunger; the third plunger is arranged on the first plunger in a matched manner through a third T-shaped block and a T-shaped groove formed in the first plunger, and a second guide block on the third plunger is matched with a fifth guide groove in a second shell of the compressor; one end of a third spring is arranged on the end face of the fifth guide groove, and the other end of the third spring is arranged on the end face of the second guide block; the third plunger is matched with the outer circular surface of the hollow shaft and the third bump; the first cam, the second cam, the third cam, the first plunger, the second plunger, the third plunger, the first shell of the compressor and the second shell of the compressor form a first liquid working medium cavity and a second liquid working medium cavity together; a sixth guide groove is formed in the outer circular surface of the hollow shaft penetrating out of the hollow shaft hole, and a fifth guide block is mounted at one end of the first connecting plate; the sixth guide groove is matched with the fifth guide block;

The pipe connecting device is connected with the evaporation structure through a hose; the evaporation structure is connected with the condensation structure through a hose; the condensing structure is connected with the pipe connecting device through a hose;

When the temperature of the memory metal is below 50 ℃, the memory metal maintains a certain shape, and no gap exists between adjacent evaporation structures; when the temperature of the memory metal is more than 50 ℃, the memory metal deforms, and a gap is formed between adjacent evaporation structures;

The pipe connecting device is internally provided with a liquid working medium tank.

2. The automatic cooling and speed regulating drilling machine according to claim 1, characterized in that: the first straight gear is mounted on the drive shaft by a key.

3. The automatic cooling and speed regulating drilling machine according to claim 1, characterized in that: the second spur gear is mounted on a second spur gear shaft through a bearing.

4. The automatic cooling and speed regulating drilling machine according to claim 1, characterized in that: and the third straight gear is arranged on the third straight gear shaft through a bearing.

5. The automatic cooling and speed regulating drilling machine according to claim 1, characterized in that: the fourth spur gear is mounted on a fourth spur gear shaft through a bearing.