Refrigeration compressor and control method for ice making equipment

Abstract

The invention relates to the technical field of compressors, and discloses a refrigeration compressor and a control method for ice making equipment, the refrigeration compressor comprises a shell, an assembly seat mounted in the shell, a piston cylinder and a main motor which are fixed on the assembly seat, and a piston inserted in the piston cylinder, and a pressure sensor is fixedly mounted on a channel at the exhaust end of the piston cylinder. The pressure sensor, the upper transmission assembly, the lower transmission assembly and the driving assembly are arranged in the shell of the compressor, after the compressor is shut down, the pressure sensor monitors the high air pressure state and controls the driving assembly to operate, and the driving assembly forces a lower gear on the lower transmission assembly to be separated from an upper gear on the upper transmission assembly; therefore, heat conducted to the main motor can be reduced, negative effects of heating increase, part abrasion, energy consumption increase and the like caused by overhigh starting load of the main motor when the compressor is started at the moment can be avoided, the damage probability is reduced, and the service life of the main motor in the compressor is comprehensively prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a refrigeration compressor and a control method for ice-making equipment. Background Art

[0002] The compressor is the core component of the ice-making equipment, which is used to compress and transport the refrigerant. Its main principle is that the motor inside the shell runs, driving the crank to rotate, and then pushing the piston back and forth, continuously sucking the refrigerant into the piston cylinder, and then squeezing it out to form a high-pressure and high-temperature refrigerant. At present, the small compressors widely used in ice-making equipment still have certain shortcomings: when the compressor runs for a period of time and then stops, there is a high pressure difference on both sides of the compressor intake and exhaust. At this time, on the one hand, the heat of the compressed refrigerant is easily transferred to the motor with the piston and crank, causing the motor to continue to heat up, resulting in a reduction in the life of the motor. If the compressor is started in a short time, the instantaneous torque of the motor is large, resulting in an increase in current. Although the motor will be automatically shut down through the protector when the current increases to a certain level, the process will still have negative effects on the motor such as increased heating, parts wear, and increased energy consumption. Under this condition, there is a lack of more reasonable protection for the compressor motor, making the compressor easy to be damaged. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a refrigeration compressor and a control method for an ice-making device, which have the advantages of long service life and easy maintenance, and solve the problem that the motor of the existing compressor heats up during shutdown and the motor is easily damaged when the compressor is restarted in a short time.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a refrigeration compressor, comprising a housing, an assembly seat installed in the housing, a piston cylinder and a main motor fixed on the assembly seat, and a piston plugged into the piston cylinder, a pressure sensor is fixedly installed on the channel at one end of the piston cylinder exhaust, a bracket and a mounting plate are fixed on the top of the assembly seat, an upper transmission assembly is installed on the bracket, a lower transmission assembly is installed at the output end of the main motor, and a drive assembly is arranged on the mounting plate; The upper transmission assembly includes a crankshaft connected to the piston and an upper gear fixed to the bottom end of the crankshaft; The lower transmission assembly includes a lower gear mounted on the output shaft of the main motor and capable of vertical floating, the lower gear matches the upper gear, and the output shaft of the main motor transmits the piston through the lower transmission assembly and the upper transmission assembly; The driving assembly includes a rack that can move toward the lower transmission assembly, and the driving assembly is used to drive the lower transmission assembly to operate; When the compressor is running, the main motor drives the piston to move through the lower transmission assembly and the upper transmission assembly to achieve suction and exhaust. When the compressor stops, the pressure sensor operates and detects the pressure at the exhaust end. When the pressure is greater than the set value, the drive assembly operates to drive the lower transmission assembly to operate. When the lower transmission assembly operates, it forces the lower gear to move downward and disengage from the upper gear.

[0005] Preferably, the crank shaft is rotatably connected to the bracket, and the upper transmission assembly also includes a push rod located at the top end of the crank shaft, one end of the push rod is hinged to the piston, and the other end of the push rod is rotatably connected to the top end of the crank shaft, and the upper gear is located directly above the lower gear.

[0006] Preferably, the lower transmission assembly includes a circular plate fixed to the top of the main motor output shaft, a vertical square slot hole is opened in the center of the circular plate, a square rod is inserted in the square slot hole, the lower gear is fixed to the top of the square rod, a vertical spring is fixed between the bottom of the lower gear and the top of the circular plate, the two ends of the vertical spring are respectively fixedly connected to the lower gear and the circular plate, an outer gear ring is rotatably connected to the outer edge of the circular plate, an inner gear ring is arranged between the outer gear ring and the inner wall, a plurality of support members distributed in a ring array are arranged on the top of the circular plate, the support members are used to support the lower gear and are transmission-connected to the inner gear ring.

[0007] Preferably, the support member includes a vertical shaft and a bearing seat, the bottom end of the vertical shaft is rotatably connected to the surface of the circular plate, an internal gear and a first bevel gear are fixedly connected to the vertical shaft, the bearing seat is located on one side of the vertical shaft and is fixed to the surface of the circular plate, a horizontal shaft is rotatably connected to the bearing seat, and a second bevel gear and a cam are respectively fixed at both ends of the horizontal shaft.

[0008] Preferably, the tip of the cam abuts against the bottom of the lower gear, and the tip of the cam is provided with a straight cut surface.

[0009] Preferably, the driving assembly includes a driving motor and a bar block fixed on a mounting plate, the driving motor output shaft is fixedly connected to a third bevel gear, two bar blocks are provided, the two bar blocks are fixed to the surface of the mounting plate, a nut seat, a screw and a guide rod are provided between the two bar blocks, the screw passes through the nut seat and the two ends are respectively rotatably connected to the two bar blocks, one end of the screw is fixedly connected to a fourth bevel gear, the fourth bevel gear is meshed with the third bevel gear, the guide rod is movably connected to the nut seat and the two ends are respectively fixed to the two bar blocks, and the rack is installed at one end of the nut seat.

[0010] Preferably, a slide rail is provided on one side of the rack, the slide rail is fixedly connected to the surface of the mounting plate, the rack is slidably connected to the slide rail, one end of the rack is fixedly connected to a transverse spring, one end of the transverse spring is fixedly connected to a nut seat, and one end of the slide rail is fixedly connected to a positioning slider.

[0011] Preferably, a cleaning assembly is installed on the nut seat, and the cleaning assembly includes a rotatable double-sided brush, and the cleaning assembly is used to clean the surfaces of the lower gear and the upper gear.

[0012] Preferably, the cleaning assembly includes a horizontal frame, which is fixedly connected to the nut seat, and a circular groove hole is arranged on the horizontal frame. The double-sided brush is arranged in a circular shape and is rotatably connected in the circular groove hole. A driven gear is fixed to the edge of the double-sided brush. A transmission motor is also fixedly connected to the horizontal frame, and a driving gear is fixed to the output shaft of the transmission motor, and the driving gear is meshed with the driven gear.

[0013] The present invention also discloses a control method for an ice-making device, which is used to regulate the above-mentioned refrigeration compressor, including: after the ice-making device is turned off, starting a pressure sensor to monitor the pressure at the exhaust end of the piston cylinder, and when the pressure is greater than a set value, controlling the operation of a drive component to separate the lower gear from the upper gear to release the transmission of the piston by the main motor, and when the pressure drops below the set value, starting the drive component to mesh the lower gear with the upper gear to re-transmit the transmission to the main motor and the piston.

[0014] Compared with the prior art, the present invention provides a refrigeration compressor and a control method for ice-making equipment, which has the following beneficial effects: 1. This refrigeration compressor and control method for ice-making equipment, by arranging a pressure sensor, an upper transmission assembly, a lower transmission assembly and a drive assembly inside the shell of the compressor, when the compressor stops, the pressure sensor monitors the high pressure state and controls the operation of the drive assembly, and the drive assembly forces the lower gear on the lower transmission assembly to separate from the upper gear on the upper transmission assembly, thereby disconnecting the transmission, which can not only reduce the heat conduction to the main motor, but also avoid the negative effects of increased heating, parts wear, increased energy consumption, etc. caused by excessive starting load of the main motor when the compressor is started at this time, thereby reducing the probability of damage and comprehensively extending the service life of the main motor in the compressor.

[0015] 2. This refrigeration compressor and control method for ice-making equipment, by setting a cleaning component, can first drive the lower gear and the upper gear to separate through the driving component, and then drive the double-sided brush to brush back and forth between the upper gear and the lower gear, which is beneficial to cleaning the oil stains on the upper gear and the lower gear, facilitates self-maintenance of the upper gear and the lower gear, and improves the service life.

[0016] 3. This refrigeration compressor and control method for ice-making equipment rotate the entire double-sided brush through the transmission motor. During actual cleaning, the movement of the double-sided brush cooperates with its own rotation, which has a better cleaning effect on the upper gear and the lower gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the internal structure of a refrigeration compressor of the present invention; Figure 2 It is a structural schematic diagram of the assembly seat of the present invention; Figure 3 For the present invention Figure 2 A magnified view of part A; Figure 4 It is a structural schematic diagram of the upper transmission assembly of the present invention; Figure 5 It is a structural schematic diagram of the lower transmission assembly of the present invention; Figure 6 It is an exploded view of the assembly structure of the square rod of the present invention; Figure 7 For the present invention Figure 6 A magnified view of part B; Figure 8 The three-dimensional structure of the driving assembly of the present invention Figure 1 ; Fig. 9 The three-dimensional structure of the driving assembly of the present invention Figure 2 ; Fig.10 It is an exploded view of the assembly structure of the double-sided brush of the present invention.

[0018] In the figure: 1, housing; 2, assembly seat; 3, piston cylinder; 4, piston; 5, main motor; 6, pressure sensor; 7, upper transmission assembly; 71, crank shaft; 72, upper gear; 73, push rod; 8, lower transmission assembly; 801, lower gear; 802, round plate; 803, square slot hole; 804, square rod; 805, vertical spring; 806, outer gear ring; 807, inner gear ring; 80, support member; 808, vertical shaft; 809, bearing seat; 810, inner gear; 811, first bevel gear; 812, horizontal shaft; 813, second bevel gear; 814, cam; 815, straight section; 9, driving assembly; 901, rack; 902, driving motor; 903, bar block; 904, third bevel gear; 905, nut seat; 906, screw; 907, guide rod; 908, fourth bevel gear; 909, slide rail; 910, transverse spring; 911, positioning slider; 10, bracket; 11, mounting plate; 12, cleaning assembly; 121, double-sided brush; 122, horizontal frame; 123, circular slot hole; 124, driven gear; 125, transmission motor; 126, driving gear. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a refrigeration compressor and a control method for an ice-making device.

[0021] Example 1: Please refer to Figure 1-Figure 3 A refrigeration compressor comprises a housing 1, an assembly seat 2 installed in the housing 1, a piston cylinder 3 and a main motor 5 fixed on the assembly seat 2, and a piston 4 inserted in the piston cylinder 3, a pressure sensor 6 is fixedly installed on the passage at one end of the exhaust of the piston cylinder 3, a bracket 10 and a mounting plate 11 are fixed on the top of the assembly seat 2, an upper transmission assembly 7 is installed on the bracket 10, a lower transmission assembly 8 is installed on the output end of the main motor 5, and a drive assembly 9 is arranged on the mounting plate 11; The upper transmission assembly 7 includes a crankshaft 71 connected to the piston 4 and an upper gear 72 fixed to the bottom end of the crankshaft 71; The lower transmission assembly 8 includes a lower gear 801 mounted on the output shaft of the main motor 5 and capable of vertical floating. The lower gear 801 matches the upper gear 72. The output shaft of the main motor 5 transmits the piston 4 through the lower transmission assembly 8 and the upper transmission assembly 7. The driving assembly 9 includes a rack 901 that can move toward the lower transmission assembly 8, and the driving assembly 9 is used to drive the lower transmission assembly 8 to operate; When the compressor is running, the main motor 5 drives the piston 4 to move through the lower transmission assembly 8 and the upper transmission assembly 7 to achieve air intake and exhaust. When the compressor stops, the pressure sensor 6 operates and detects the pressure at the exhaust end. When the pressure is greater than the set value, the drive assembly 9 operates to drive the lower transmission assembly 8 to operate. When the lower transmission assembly 8 operates, it forces the lower gear 801 to move downward and disengage from the upper gear 72.

[0022] The refrigeration compressor in this embodiment is applied to ice-making equipment, the mounting plate 11 is set as a horizontal metal plate, the upper gear 72 and the lower gear 801 are both set as face gears, and when the compressor is in normal working state, the upper gear 72 and the lower gear 801 are in meshing connection state; When in use, the compressor is in normal operation, the main motor 5 drives the lower gear 801 on the lower transmission assembly 8 to rotate, and the lower gear 801 drives the upper gear 72 to rotate, thereby driving the crankshaft 71 to rotate, and the crankshaft 71 rotates. When the crankshaft 71 rotates, it pushes the piston 4 to reciprocate to achieve the suction and exhaust process. When the compressor is stopped, the pressure sensor 6 is started, and the pressure sensor 6 monitors the pressure at the exhaust end of the piston cylinder 3. If the pressure is greater than the set value, the drive assembly 9 is operated, and the drive assembly 9 forces the rack 901 to move when it is operated, thereby driving the lower transmission assembly 8 to operate. When the lower transmission assembly 8 is in operation The lower gear 801 is forced to move downward and disengage from the upper gear 72, releasing the meshing state. At this time, the heat at the air intake end of the piston cylinder 3 cannot be directly transferred to the output shaft of the main motor 5 through the crank. At the same time, if the compressor is started at this time, the main motor 5 only drives the lower gear 801 to rotate when it is running, and will not have a negative impact on the motor due to excessive starting load. When the pressure at the exhaust end of the piston cylinder 3 is gradually released into the ice-making equipment, the pressure difference decreases, and the pressure sensor detects that the pressure is below the set value. At this time, the driving component 9 is operated again, forcing the lower gear 801 to move upward and reset, and re-engage with the upper gear 72; By arranging a pressure sensor 6, an upper transmission assembly 7, a lower transmission assembly 8 and a drive assembly 9 inside the compressor casing 1, when the compressor stops, the pressure sensor 6 monitors the high pressure state and controls the drive assembly 9 to operate, and the drive assembly 9 forces the lower gear 801 on the lower transmission assembly 8 to separate from the upper gear 72 on the upper transmission assembly 7, thereby disconnecting the transmission. This can not only reduce the heat conduction to the main motor 5, but also avoid the negative effects of increased heat, parts wear, increased energy consumption, etc. caused by excessive starting load on the main motor 5 when starting the compressor at this time, thereby reducing the probability of damage and comprehensively extending the service life of the main motor 5 in the compressor.

[0023] Example 2: See Figure 4-Figure 6, which is different from the above embodiment, the crankshaft 71 is rotatably connected to the bracket 10, the upper transmission assembly 7 also includes a push rod 73 located at the top of the crankshaft 71, one end of the push rod 73 is hinged to the piston 4, and the other end of the push rod 73 is rotatably connected to the top of the crankshaft 71, the upper gear 72 is located directly above the lower gear 801, and the lower transmission assembly 8 includes a circular plate 802 fixed to the top of the output shaft of the main motor 5, a vertical square slot 803 is opened in the center of the circular plate 802, and a square rod 804 is inserted into the square slot 803, The lower gear 801 is fixed on the top of the square rod 804, and a vertical spring 805 is fixed between the bottom of the lower gear 801 and the top of the circular plate 802. The two ends of the vertical spring 805 are respectively fixedly connected to the lower gear 801 and the circular plate 802. The outer edge of the circular plate 802 is rotatably connected with an outer gear ring 806, and an inner gear ring 807 is arranged on the inner wall of the outer gear ring 806. A plurality of support members 80 distributed in a circular array are arranged on the top of the circular plate 802. The support members 80 are used to support the lower gear 801 and are transmission-connected to the inner gear ring 807.

[0024] The diameter of the circular plate 802 is larger than the diameter of the output shaft of the main motor 5, the shape of the square rod 804 matches the shape of the square slot 803, and when the lower gear 801 is meshed with the upper gear 72, the vertical spring 805 is in an elongated state, and the supporting force of the support member 80 on the lower gear 801 and the pulling force of the vertical spring 805 on the lower gear 801 are in opposite directions; When in use, the main motor 5 is started, and the output shaft of the main motor 5 rotates to drive the circular plate 802 to rotate. When the circular plate 802 rotates, the square rod 804 inserted on the circular plate 802, the lower gear 801 at the top of the square rod 804, and the vertical spring 805 fixed between the lower gear 801 and the circular plate 802 rotate together. When the lower gear 801 rotates, it drives the upper gear 72 to rotate. When the upper gear 72 rotates, it drives the crank shaft 71 to rotate. The rotation of the crank shaft 71 drives one end of the push rod 73 to repeatedly push, so that the other end of the push rod 73 reciprocates to push the piston 4 to move, thereby realizing air intake and exhaust; By providing the upper transmission assembly 7 and the lower transmission assembly 8, the meshing of the upper gear 72 and the lower gear 801 can realize efficient transmission of the crankshaft 71 by the main motor 5, thereby driving the piston 4 to reciprocate and realize the suction and exhaust functions.

[0025] Example 3, see Figure 7-Figure 9, different from the above embodiment, the support member 80 includes a vertical shaft 808 and a bearing seat 809, the bottom end of the vertical shaft 808 is rotatably connected to the surface of the circular plate 802, the vertical shaft 808 is fixedly connected with an internal gear 810 and a first bevel gear 811, the bearing seat 809 is located on one side of the vertical shaft 808 and is fixed on the surface of the circular plate 802, the bearing seat 809 is rotatably connected with a horizontal shaft 812, and the two ends of the horizontal shaft 812 are respectively fixed with a second bevel gear 813 and a cam 814, the tip of the cam 814 is against the bottom of the lower gear 801, and the tip of the cam 814 is provided with a straight cut surface 815, the driving assembly 9 includes a driving motor 902 and a bar block fixed on the mounting plate 11 903, the output shaft of the driving motor 902 is fixedly connected with the third bevel gear 904, the strip blocks 903 are set in two, the two strip blocks 903 are fixed on the surface of the mounting plate 11, a nut seat 905, a screw 906 and a guide rod 907 are provided between the two strip blocks 903, the screw 906 passes through the nut seat 905 and the two ends are respectively rotatably connected with the two strip blocks 903, one end of the screw 906 is fixedly connected with the fourth bevel gear 908, the fourth bevel gear 908 is meshed with the third bevel gear 904, the guide rod 907 is movably connected with the nut seat 905 and the two ends are respectively fixed with the two strip blocks 903, and the rack 901 is installed at one end of the nut seat 905.

[0026] There are at least three support members 80, and the plurality of support members 80 surround the square rod 804. In the initial state, the bottom of the lower gear 801 presses on the straight cut surface 815 of the tip of the cam 814. The number of guide rods 907 is preferably set to 2, and the guide rods 907 are parallel to the screw rod 906. The nut seat 905 is set to be L-shaped and one end extends to one side of the mounting plate 11. When in use, the driving motor 902 drives the third bevel gear 904 to rotate when it is running, and the third bevel gear 904 drives the fourth bevel gear 908 to rotate when it rotates, and the fourth bevel gear 908 drives the screw 906 to rotate when it rotates, and the screw 906 drives the nut seat 905 to move along the guide rod 907 when it rotates, and the nut seat 905 drives the rack 901 to move when it moves. During the movement of the rack 901, it first contacts and pushes the outer gear ring 806 to rotate, and then disengages from the outer gear ring 806. When the outer gear ring 806 rotates, it drives the inner gear ring 807 to rotate. When the inner gear ring 807 rotates, it drives the internal gear 810 on each support member 80 to rotate, and when the internal gear 810 rotates, it drives the vertical The shaft 808 and the first bevel gear 811 on the vertical shaft 808 rotate, and the first bevel gear 811 rotates to drive the second bevel gear 813 to rotate. The second bevel gear 813 rotates to drive the horizontal shaft 812 and the cam 814 at one end of the horizontal shaft 812 to rotate. After the cam 814 rotates, the tip is separated from the bottom of the lower gear 801 and no longer supports the lower gear 801. The lower gear 801 moves downward under the pulling action of the vertical spring 805, and then separates from the upper gear 72. In addition, the driving component 9 can also control the driving motor 902 to rotate in the opposite direction, and similarly can drive the cam 814 to rotate in the opposite direction, so that the tip lifts up the lower gear 801 again and supports the lower gear 801 again. By providing the support member 80 and the driving assembly 9, when the driving motor 902 is started, the rack 901 can be driven to move, thereby driving the multiple cams 814 at the bottom of the lower gear 801 to rotate, thereby releasing the support for the lower gear 801, so that the lower gear 801 moves under the action of the vertical spring 805 and disengages from the upper gear 72, thereby disconnecting the transmission, which is beneficial to blocking the conduction of heat. At the same time, the main motor 5 is also avoided from carrying high loads when running at this time, thereby avoiding the phenomena of increased heat, wear of parts, increased energy consumption, etc., which is beneficial to extending the service life of the compressor.

[0027] Example 4, see Figure 8 and Fig. 9 , which is different from the above-mentioned embodiment, a slide rail 909 is provided on one side of the rack 901, and the slide rail 909 is fixedly connected to the surface of the mounting plate 11, the rack 901 is slidably connected to the slide rail 909, one end of the rack 901 is fixedly connected to a transverse spring 910, one end of the transverse spring 910 is fixedly connected to the nut seat 905, and one end of the slide rail 909 is fixedly connected to a positioning slider 911.

[0028] The direction of the slide rail 909 is consistent with the moving direction of the nut seat 905. The positioning slider 911 is arranged on the moving path of the rack 901. The positioning slider 911 is slidably connected with the slide rail 909 and fixed by a fastening bolt. In actual application, the position of the positioning slider 911 on the slide rail 909 can be adjusted by rotating the fastening bolt. A cleaning component 12 is installed on the nut seat 905. The cleaning component 12 includes a rotatable double-sided brush 121. The cleaning component 12 is used to clean the surfaces of the lower gear 801 and the upper gear 72. When in use, the nut seat 905 moves and drives the cleaning assembly 12 to move, and pushes the transverse spring 910. The spring pushes the rack 901, so that the rack 901 slides along the slide rail 909, and then drives the lower transmission assembly 8 to operate, so that the lower gear 801 is separated from the upper gear 72, and stops when the rack 901 contacts the positioning slider 911. At this time, the nut seat 905 continues to move and compresses the transverse spring 910, and continues to drive the cleaning assembly 12 to move, so that the double-sided brush 121 enters between the lower gear 801 and the upper gear 72 and moves. By controlling the reciprocating movement of the nut seat 905, the double-sided brush 121 can reciprocate and brush the lower gear 801 and the upper gear 72. By setting up the cleaning component 12, the driving component 9 can first drive the lower gear 801 and the upper gear 72 to separate, and then drive the double-sided brush 121 to brush back and forth between the upper gear 801 and the lower gear 801, which is beneficial to cleaning the oil stains on the upper gear 72 and the lower gear 801, facilitates self-maintenance of the upper gear 72 and the lower gear 801, and improves the service life.

[0029] Example 5, see Fig.10 , different from the above embodiment, the cleaning component 12 includes a horizontal frame 122, the horizontal frame 122 is fixedly connected to the nut seat 905, a circular groove hole 123 is provided on the horizontal frame 122, the double-sided brush 121 is set in a circular shape and is rotatably connected in the circular groove hole 123, a driven gear 124 is fixed to the edge of the double-sided brush 121, and a transmission motor 125 is also fixedly connected to the horizontal frame 122, and a driving gear 126 is fixed to the output shaft of the transmission motor 125, and the driving gear 126 is meshed with the driven gear 124.

[0030] Among them, the double-sided brush 121 is set to be circular, and brush filaments are set on the top and bottom of the double-sided brush 121. When in use, the transmission motor 125 is started, the transmission motor 125 drives the driving gear 126 to rotate, and the driving gear 126 drives the driven gear 124 to rotate. When the driven gear 124 rotates, it drives the entire double-sided brush 121 to rotate. During actual cleaning, the movement of the double-sided brush 121 cooperates with its own rotation, which has a better cleaning effect on the upper gear 72 and the lower gear 801.

[0031] Example 6, see Figure 1-Figure 10 A control method for an ice-making device, the control method for the ice-making device is used to regulate the refrigeration compressor in any of the above embodiments, including: after the ice-making device is turned off, the pressure sensor 6 is started to monitor the pressure at the exhaust end of the piston cylinder 3, and when the pressure is greater than the set value, the driving component 9 is controlled to operate so that the lower gear 801 is separated from the upper gear 72 to release the transmission of the main motor 5 to the piston 4. When the pressure drops below the set value, the driving component 9 is started so that the lower gear 801 is meshed with the upper gear 72, and the main motor 5 and the piston 4 are transmitted again.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A refrigeration compressor, comprising a housing, an assembly seat mounted in the housing, a piston cylinder fixed on the assembly seat and a main motor, and a piston plugged into the piston cylinder, characterized in that: A pressure sensor is fixedly installed on the channel at one end of the piston cylinder exhaust, a bracket and a mounting plate are fixed on the top of the assembly seat, an upper transmission assembly is installed on the bracket, a lower transmission assembly is installed at the output end of the main motor, and a drive assembly is arranged on the mounting plate; The upper transmission assembly includes a crankshaft connected to the piston and an upper gear fixed to the bottom end of the crankshaft; The lower transmission assembly includes a lower gear mounted on the output shaft of the main motor and capable of vertical floating, the lower gear matches the upper gear, and the output shaft of the main motor transmits the piston through the lower transmission assembly and the upper transmission assembly; The driving assembly includes a rack that can move toward the lower transmission assembly, and the driving assembly is used to drive the lower transmission assembly to operate; When the compressor is running, the main motor drives the piston to move through the lower transmission assembly and the upper transmission assembly to achieve suction and exhaust. When the compressor stops, the pressure sensor operates and detects the pressure at the exhaust end. When the pressure is greater than the set value, the drive assembly operates to drive the lower transmission assembly to operate. When the lower transmission assembly operates, it forces the lower gear to move downward and disengage from the upper gear.

2. A refrigeration compressor according to claim 1, characterized in that: The crankshaft is rotatably connected to the bracket, and the upper transmission assembly also includes a push rod located at the top end of the crankshaft, one end of the push rod is hinged to the piston, and the other end of the push rod is rotatably connected to the top end of the crankshaft, and the upper gear is located directly above the lower gear.

3. A refrigeration compressor according to claim 1, characterized in that: The lower transmission assembly includes a circular plate fixed to the top of the main motor output shaft, a vertical square slot hole is opened in the center of the circular plate, a square rod is inserted in the square slot hole, the lower gear is fixed to the top of the square rod, a vertical spring is fixed between the bottom of the lower gear and the top of the circular plate, the two ends of the vertical spring are respectively fixedly connected to the lower gear and the circular plate, an outer gear ring is rotatably connected to the outer edge of the circular plate, an inner gear ring is arranged between the outer gear ring and the inner wall, a plurality of support members distributed in a ring array are arranged on the top of the circular plate, the support members are used to support the lower gear and are transmission-connected to the inner gear ring.

4. A refrigeration compressor according to claim 3, characterized in that: The support member includes a vertical shaft and a bearing seat. The bottom end of the vertical shaft is rotatably connected to the surface of the circular plate. An internal gear and a first bevel gear are fixedly connected to the vertical shaft. The bearing seat is located on one side of the vertical shaft and fixed to the surface of the circular plate. A horizontal shaft is rotatably connected to the bearing seat. A second bevel gear and a cam are respectively fixed at both ends of the horizontal shaft.

5. A refrigeration compressor according to claim 4, characterized in that: The tip of the cam abuts against the bottom of the lower gear, and the tip of the cam is provided with a straight cut surface.

6. A refrigeration compressor according to claim 5, characterized in that: The driving assembly includes a driving motor and a bar block fixed on a mounting plate, the driving motor output shaft is fixedly connected to a third bevel gear, two bar blocks are provided, the two bar blocks are fixed to the surface of the mounting plate, a nut seat, a screw and a guide rod are provided between the two bar blocks, the screw passes through the nut seat and the two ends are respectively rotatably connected to the two bar blocks, one end of the screw is fixedly connected to a fourth bevel gear, the fourth bevel gear is meshed with the third bevel gear, the guide rod is movably connected to the nut seat and the two ends are respectively fixed to the two bar blocks, and the rack is installed at one end of the nut seat.

7. A refrigeration compressor according to claim 6, characterized in that: A slide rail is provided on one side of the rack, the slide rail is fixedly connected to the surface of the mounting plate, the rack is slidably connected to the slide rail, one end of the rack is fixedly connected to a transverse spring, one end of the transverse spring is fixedly connected to a nut seat, and one end of the slide rail is fixedly connected to a positioning slider.

8. A refrigeration compressor according to claim 7, characterized in that: A cleaning assembly is installed on the nut seat. The cleaning assembly includes a rotatable double-sided brush and is used for cleaning the surfaces of the lower gear and the upper gear.

9. A refrigeration compressor according to claim 8, characterized in that: The cleaning assembly includes a horizontal frame, which is fixedly connected to a nut seat. A circular slot hole is provided on the horizontal frame. The double-sided brush is arranged in a circular shape and is rotatably connected in the circular slot hole. A driven gear is fixedly provided on the edge of the double-sided brush. A transmission motor is also fixedly connected to the horizontal frame. A driving gear is fixedly provided on the output shaft of the transmission motor. The driving gear is meshed with the driven gear.

10. A control method for ice making equipment, characterized in that: The control method of the ice-making equipment is used to regulate the refrigeration compressor as described in any one of claims 1 to 9, comprising: after the ice-making equipment is turned off, starting the pressure sensor to monitor the pressure at the exhaust end of the piston cylinder, and when the pressure is greater than a set value, controlling the operation of the drive assembly to separate the lower gear from the upper gear to release the transmission of the piston to the main motor, and when the pressure drops below the set value, starting the drive assembly to mesh the lower gear with the upper gear to re-transmit the transmission to the main motor and the piston.

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