A transmission

Abstract

The invention discloses a transmission, which relates to the field of spray irrigation and dust removal. It includes a speed change device; the speed change device includes a transmission shaft, a connecting shell sleeved on the outside of the transmission shaft, a carrier gear ring fixedly arranged on the inner surface of the connecting shell, a speed change sun gear fixedly arranged on the end of the transmission shaft, a cylindrical output speed change member rotatably arranged with the connecting shell, a speed change ring fixedly arranged on the inner surface of the output speed change member, and a speed change planetary gear rotatably arranged with the end face of the output speed change member; the speed change planetary gear is meshed with the carrier gear ring; the speed change planetary gear is adapted to the speed change sun gear; the speed change sun gear is adapted to the speed change ring gear. The beneficial effect of the invention is that the rotation speed of the spray gun can be changed according to different working environments.

Description

Technical Field

[0001] The invention relates to the technical field of spray irrigation and dust removal, in particular to a transmission for changing the rotation speed of a rotary spray gun. Background Art

[0002] A spray gun is a device used for irrigation of crops and plants or for industrial dust removal. One end of the spray gun is connected to a high-pressure water flow, and the water is sprayed out through a nozzle.

[0003] The working principle of the existing rotary spray gun is to spray the water flow inside the rotary spray gun through a steering water spray pipe, and the water flow sprayed from the steering water spray pipe is used as a driving force. The transmission rod on the rotary spray gun is rotated through other devices, and the transmission rod then rotates the existing rotary spray gun through the structure of the existing rotary spray gun itself, thereby spraying the water flow within 360° for irrigation of crops and plants or for industrial dust removal.

[0004] However, the rotation speed of the existing spray gun cannot be changed. For different work sites, spray guns with different rotation speeds need to be prepared. When the working environment is changed, the spray gun needs to be replaced, which will greatly affect the work efficiency and increase the construction cost. Therefore, a transmission is needed to change the rotation speed of the existing spray gun. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a transmission to change the rotation speed of the spray gun according to different working environments.

[0006] The technical solution adopted by the present invention is: a transmission, including a speed change device;

[0007] The speed change device comprises a transmission shaft, a connection shell sleeved on the outside of the transmission shaft, a carrier gear ring fixedly arranged on the inner surface of the connection shell, a speed change sun gear fixedly arranged on the end of the transmission shaft, a cylindrical output speed change member rotatably arranged with the connection shell, a speed change ring fixedly arranged on the inner surface of the output speed change member, and a speed change planetary gear rotatably arranged with the end surface of the output speed change member; the speed change planetary gear meshes with the carrier gear ring; the speed change planetary gear is adapted to the speed change sun gear; the speed change sun gear is adapted to the speed change ring gear;

[0008] The speed-changing sun gear slides along the axis of the output speed-changing member.

[0009] To further optimize the technical solution, a cylindrical connecting piece is provided between the output transmission member of the transmission and the connecting shell; the output transmission member is rotationally matched with the inner wall of the connecting piece; and the end of the connecting piece is fixedly connected to the end of the connecting shell.

[0010] To further optimize the technical solution, the transmission also includes a speed regulating device; the speed regulating device is used to drive the transmission shaft to slide inside the connecting shell;

[0011] The speed regulating device comprises a speed regulating tube fixedly connected to the side of the connecting shell, a rotating column rotatably arranged inside the speed regulating tube, and a speed regulating column fixedly connected to the end of the rotating column; the speed regulating column is eccentrically arranged;

[0012] A speed regulating wheel is fixedly connected to the middle of the transmission shaft; a speed regulating groove is opened on the cylindrical surface of the speed regulating wheel along the circumference of the speed regulating wheel; and the speed regulating column extends into the speed regulating groove.

[0013] To further optimize the technical solution, a long groove is opened on the side of the speed regulating tube of the transmission along the circumferential direction; a speed regulating rod is fixedly connected to the side of the rotating column; the speed regulating rod passes through the long groove and slidably cooperates with the long groove.

[0014] To further optimize the technical solution, the transmission has locking holes on the speed regulating tube at both ends of the long slot; the aperture of the locking hole is larger than the slot width of the long slot; a tension spring is provided on the outer surface of the speed regulating rod; one end of the tension spring is fixedly connected to the speed regulating rod; the other end of the tension spring is fixedly connected to a locking rod slidably sleeved with the speed regulating rod; the locking rod is clamped in the locking hole.

[0015] To further optimize the technical solution, the transmission further comprises a driving device; the driving device comprises a driving mechanism arranged on one side of the speed changing device and a transmission mechanism arranged between the driving mechanism and the speed changing device; the driving mechanism is fixedly connected to the connecting shell via a mounting shell;

[0016] The driving mechanism includes a turbine and a worm meshing with the turbine; the turbine and the worm are both arranged inside the mounting shell; the turbine drives the transmission shaft to rotate through the transmission mechanism.

[0017] To further optimize the technical solution, the transmission mechanism of the transmission comprises a transmission member, a transmission sun gear coaxially fixedly connected to the turbine, and a transmission planetary gear rotatably arranged on the end surface of the transmission member; the transmission sun gear is meshed with the transmission planetary gear; the end of the transmission member away from the transmission planetary gear is detachably connected to the end of the transmission shaft; the transmission mechanism is fixedly connected between the connecting shell and the mounting shell through a bearing shell;

[0018] The inner surface of the end of the mounting shell is fixedly connected with a transmission gear ring; the transmission planetary gear is meshed with the transmission gear ring.

[0019] To further optimize the technical solution, a groove is axially provided at the end of the transmission where the transmission member is connected to the transmission shaft; a clamping column perpendicular to the transmission shaft is fixedly connected to the end of the transmission shaft where the transmission member is connected; the clamping column is slidably engaged with the groove; and the transmission shaft is slidably engaged with the transmission member.

[0020] To further optimize the technical solution, the worm end of the transmission passes through the mounting shell, extends to the outside of the mounting shell, and is fixedly connected to a steering wheel; and a push plate is fixedly arranged on the end surface of the steering wheel along the circumferential direction.

[0021] The significant beneficial effects of the present invention are:

[0022] 1. Move the transmission shaft left and right to make it move left and right. When the transmission shaft is moved to the left, the speed change sun gear meshes with the speed change planetary gear. When the transmission shaft is rotated, the output speed change part rotates through the speed change sun gear and the speed change planetary gear. When the transmission shaft is moved to the right, the speed change sun gear and the speed change planetary gear are disengaged, and the speed change sun gear meshes with the speed change ring gear. When the transmission shaft is rotated, the output speed change part rotates through the speed change sun gear and the speed change ring gear.

[0023] It has two different drive structures, and the second drive structure can make the output transmission component rotate faster than the first drive structure. In this way, when the transmission shaft is moved left and right, the rotation speed of the output transmission component can be changed, so that the output transmission component has two rotation speeds. The output transmission component is connected to the existing rotary spray gun to rotate the existing spray gun, and finally the existing rotary spray gun can have two different rotation speeds. The rotation speed of the existing rotary spray gun can be changed according to the needs of the working environment, and there is no need to replace different rotary spray guns.

[0024] 2. Using the speed regulating device to move the transmission shaft left and right is more convenient and labor-saving than manually moving the transmission shaft left and right;

[0025] The speed regulating rod is rotated to rotate the rotating column, so that the speed regulating column rotates in the speed regulating groove, and the speed regulating column applies a force to the speed regulating, so that the transmission shaft moves left and right;

[0026] Utilizing the structure of the locking hole and the locking rod, when the speed regulating rod reaches the end of the long slot, the tension of the tension spring pulls the locking rod into the locking hole. Since the diameter of the end of the locking rod is very close to the diameter of the locking hole, when the locking rod slides into the locking hole, the locking hole restricts the locking rod so that the locking rod cannot slide easily in the long slot. During operation, external uncertainties are not easy to move the locking rod, that is, external uncertainties are not easy to cause the transmission shaft to move left and right, thereby reducing the influence of external factors on the transmission shaft and allowing normal operation.

[0027] 3. Use the power device to drive the transmission mechanism, and then the transmission mechanism drives the driving device, and finally the output transmission member rotates;

[0028] The present invention is installed on an existing spray gun, the steering wheel is aligned with the steering water spray pipe on the existing spray gun, the output speed change member is fixedly connected to the transmission rod on the existing spray gun, when the steering water spray pipe of the existing spray gun sprays water to the steering wheel to rotate the steering wheel, the output speed change member is rotated through the driving device and the speed change device, so that the transmission rod on the existing spray gun is rotated, and finally the existing spray gun is rotated;

[0029] The rotation speed of the output transmission member can be changed by moving the transmission shaft left and right, that is, the rotation speed of the rotating rod on the existing spray gun can be changed, and finally the rotation speed of the existing spray gun can be changed;

[0030] The present invention can enable the existing spray gun to have two different rotation speeds. When spraying and irrigating different crops, plants or medicines, the existing spray gun needs to reach different rotation speeds so that the crops, plants or medicines can receive appropriate moisture per unit time, thereby achieving the effect of precise irrigation.

[0031] 4. When spraying and irrigating crops, plants or medicines with relatively weak vitality, the existing spray gun can be adjusted to have a faster rotation speed by adjusting the transmission shaft. This will allow them to receive relatively less water per unit time and absorb it, allowing them to grow under favorable conditions. In this way, the rotation speed of the existing spray gun can be changed according to the needs of different types of crops, plants or medicines to absorb appropriate water and enable them to thrive.

[0032] 5. When dealing with different working environments, the present invention only needs to move the transmission shaft to change the rotation speed of the existing spray gun, and there is no need to replace the spray gun, thus saving costs.

[0033] 6. In a dusty working environment, the existing spray gun needs to be adjusted to a slower rotation speed through the present invention, so that more water can be sprayed per unit area per unit time, thereby enhancing the dust removal effect;

[0034] In a working environment with less dust, the present invention needs to be used to adjust the existing spray gun to a faster rotation speed, so that more dust can be sprayed with water per unit time, thereby enhancing the dust removal effect.

[0035] 7. Since the water spray flow rate remains unchanged, when the rotation speed of the existing spray gun is increased, the water spray volume per unit area will be reduced, reducing the waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the present invention;

[0037] Figure 2 It is a schematic diagram of the connection structure between the speed-changing planetary gear and the output speed-changing member of the speed-changing device of the present invention;

[0038] Figure 3 It is a schematic diagram of the connection structure between the speed change ring gear and the speed change planetary gear inside the connection housing of the speed change device of the present invention;

[0039] Figure 4 It is a schematic diagram of the connection structure of the output transmission member, the transmission ring gear and the transmission planetary gear of the transmission device of the present invention;

[0040] Figure 5 It is a schematic diagram of the connection structure between the speed regulating column and the transmission shaft of the present invention;

[0041] Figure 6 It is a schematic diagram of the connection structure of the driving mechanism, transmission mechanism and speed change device of the present invention;

[0042] Figure 7 It is a schematic diagram of the connection structure between the card slot and the card column of the present invention;

[0043] Figure 8 It is a schematic diagram of the connection structure of the transmission sun gear, the transmission planetary gear and the transmission ring gear of the present invention;

[0044] Fig. 9 It is a schematic diagram of the internal structure of the installation shell of the present invention;

[0045] Fig.10 It is a schematic diagram of the structure of the bearing shell and the transmission member of the present invention;

[0046] Fig.11 It is a schematic diagram of the connection structure between the tension spring and the speed regulating rod of the present invention;

[0047] Fig.12 It is a schematic diagram of the planar structure of the long slot and the locking hole of the present invention;

[0048] In the figure, 1, transmission shaft; 2, connecting shell; 3, carrier gear ring; 4, output transmission member; 5, speed sun gear; 6, speed ring; 7, speed planetary gear; 8, speed regulating wheel; 9, speed regulating tube; 10, long groove; 11, rotating column; 12, speed regulating rod; 13, speed regulating column; 14, speed regulating groove; 15, locking hole; 16, tension spring; 17, locking rod; 18, mounting shell; 19, turbine; 20, transmission sun gear; 21, worm; 22, steering wheel; 23, bearing shell; 24, transmission member; 25, transmission planetary gear; 26, transmission gear ring; 27, slot; 28, clamping column; 29, push plate; 30, connecting member. DETAILED DESCRIPTION

[0049] The following will be combined with the attached examples of the present application Figure 1-12, the technical solutions in the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0050] Embodiment I:

[0051] The technical solution of this embodiment is:

[0052] A transmission, comprising a speed changing device;

[0053] The speed change device comprises a transmission shaft 1, a connection shell 2 sleeved on the outside of the transmission shaft 1, a carrier gear ring 3 fixedly arranged on the inner surface of the connection shell 2, a speed change sun gear 5 fixedly arranged on the end of the transmission shaft 1, a cylindrical output speed change member 4 rotatably arranged with the connection shell 2, a speed change ring 6 fixedly arranged on the inner surface of the output speed change member 4, and a speed change planetary gear 7 rotatably arranged with the end surface of the output speed change member 4; the speed change planetary gear 7 is meshed with the carrier gear ring 3; the speed change planetary gear 7 is adapted to the speed change sun gear 5; the speed change sun gear 5 is adapted to the speed change ring 6;

[0054] The speed change sun gear 5 slides along the axis of the output speed change member 4 .

[0055] When used in this embodiment:

[0056] The transmission shaft 1 is turned to the left, and the transmission shaft 1 drives the speed change sun gear 5 to move to the left. The speed change sun gear 5 moves to the middle of the speed change planetary gear 7 and meshes with the speed change planetary gear 7 (there are at least two speed change planetary gears 7). When the transmission shaft 1 is rotated by the driving device, the transmission shaft 1 drives the speed change sun gear 5 to rotate. Since the speed change sun gear 5 is meshed with the speed change planetary gear 7, the speed change sun gear 5 drives the speed change planetary gear 7 to rotate on the carrier gear ring 3. Then, the speed change planetary gear 7 drives the output speed change member 4 to rotate, and finally the effect of rotating the transmission shaft 1 to rotate the output speed change member 4 is achieved. This is a rotation speed of the output speed change member 4.

[0057] When the transmission shaft 1 is turned to the right, the transmission shaft 1 drives the speed sun gear 5 to move to the right, and the speed sun gear 5 moves to the inside of the output transmission part 4 and meshes with the speed ring gear 6. When the transmission shaft 1 is rotated, the transmission shaft 1 drives the speed ring gear 6 to rotate, that is, the transmission shaft 1 drives the output transmission part 4 to rotate, and finally the effect of rotating the transmission shaft 1 to rotate the output transmission part 4 is achieved. This is a rotation speed of the output transmission part 4.

[0058] When the transmission shaft 1 is rotated one circle, if the speed sun gear 5 is meshed with the speed ring gear 6, the output speed change member 4 will rotate one circle. If the speed sun gear 5 is meshed with the speed planetary gear 7, the output speed change member 4 will rotate less than one circle. Therefore, when the transmission shaft 1 is turned to the right (the speed sun gear 5 is meshed with the speed ring gear 6), the rotation speed of the output speed change member 4 is faster than that of the output speed change member 4 when the transmission shaft 1 is turned to the left (the speed sun gear 5 is meshed with the speed planetary gear 7). Therefore, the output speed change member 4 in the present technical solution can have two different rotation speeds and can be adjusted.

[0059] Embodiment II:

[0060] The technical solution of this embodiment is similar to that of embodiment I in that:

[0061] A transmission, comprising a speed changing device;

[0062] The speed change device comprises a transmission shaft 1, a connection shell 2 sleeved on the outside of the transmission shaft 1, a carrier gear ring 3 fixedly arranged on the inner surface of the connection shell 2, a speed change sun gear 5 fixedly arranged on the end of the transmission shaft 1, a cylindrical output speed change member 4 rotatably arranged with the connection shell 2, a speed change ring 6 fixedly arranged on the inner surface of the output speed change member 4, and a speed change planetary gear 7 rotatably arranged with the end surface of the output speed change member 4; the speed change planetary gear 7 is meshed with the carrier gear ring 3; the speed change planetary gear 7 is adapted to the speed change sun gear 5; the speed change sun gear 5 is adapted to the speed change ring 6;

[0063] The speed change sun gear 5 slides along the axis of the output speed change member 4;

[0064] The technical solution of this embodiment is different from that of embodiment I in that:

[0065] A cylindrical connecting member 30 is provided between the output transmission member 4 and the connecting shell 2; the output transmission member 4 is rotatably matched with the inner wall of the connecting member 30; the end of the connecting member 30 is fixedly connected to the end of the connecting shell 2;

[0066] It also includes a speed regulating device; the speed regulating device is used to drive the transmission shaft 1 to slide inside the connecting shell 2;

[0067] The speed regulating device comprises a speed regulating tube 9 fixedly connected to the side of the connecting shell 2, a rotating column 11 rotatably arranged inside the speed regulating tube 9, and a speed regulating column 13 fixedly connected to the end of the rotating column 11; the speed regulating column 13 is eccentrically arranged;

[0068] A speed regulating wheel 8 is fixedly connected to the middle of the transmission shaft 1; a speed regulating groove 14 is opened on the cylindrical surface of the speed regulating wheel 8 along the circumference of the speed regulating wheel 8; the speed regulating column 13 extends into the speed regulating groove 14;

[0069] The side of the speed regulating tube 9 is provided with a long groove 10 along the circumferential direction; the side of the rotating column 11 is fixedly connected with a speed regulating rod 12; the speed regulating rod 12 passes through the long groove 10 and is slidably matched with the long groove 10;

[0070] At both ends of the long slot 10, the speed regulating tube 9 is provided with locking holes 15; the aperture of the locking hole 15 is larger than the slot width of the long slot 10; a tension spring 16 is provided on the outer surface of the speed regulating rod 12; one end of the tension spring 16 is fixedly connected to the speed regulating rod 12; the other end of the tension spring 16 is fixedly connected to a locking rod 17 which is slidably sleeved with the speed regulating rod 12; the locking rod 17 is clamped with the locking hole 15;

[0071] The driving device comprises a driving mechanism disposed on one side of the speed change device and a transmission mechanism disposed between the driving mechanism and the speed change device; the driving mechanism is fixedly connected to the connecting shell 2 via a mounting shell 18;

[0072] The driving mechanism includes a turbine 19 and a worm 21 meshing with the turbine 19; the turbine 19 and the worm 21 are both arranged inside the mounting shell 18; the turbine 19 drives the transmission shaft 1 to rotate through the transmission mechanism;

[0073] The transmission mechanism includes a transmission member 24, a transmission sun gear 20 coaxially fixedly connected to the turbine 19, and a transmission planetary gear 25 rotatably arranged on the end surface of the transmission member 24; the transmission sun gear 20 is meshed with the transmission planetary gear 25; the end of the transmission member 24 away from the transmission planetary gear 25 is detachably connected to the end of the transmission shaft 1; the transmission mechanism is fixedly connected between the connecting shell 2 and the mounting shell 18 through a bearing shell 23;

[0074] The inner surface of the end of the mounting shell 18 is fixedly connected to a transmission ring gear 26; the transmission planetary gear 25 is meshed with the transmission ring gear 26;

[0075] The end of the transmission member 24 connected to the transmission shaft 1 is provided with a slot 27 along the axial direction; the end of the transmission shaft 1 connected to the transmission member 24 is fixedly connected with a clamping column 28 perpendicular to the transmission shaft 1; the clamping column 28 is slidably matched with the slot 27; the transmission shaft 1 is slidably matched with the transmission member 24;

[0076] The end of the worm 21 passes through the mounting shell 18 , extends to the outside of the mounting shell 18 , and is fixedly connected to a steering wheel 22 ; a push plate 29 is fixedly arranged on the end surface of the steering wheel 22 along the circumferential direction.

[0077] When used in this embodiment:

[0078] By controlling the speed regulating device, the transmission shaft 1 is pushed to move left and right, and the locking rod 17 is pulled outward to disengage the end of the locking rod 17 from the locking hole 15. The tension spring 16 accumulates force and moves the locking rod 17 to make the speed regulating rod 12 slide in the long groove 10, that is, the speed regulating column 13 rotates in the speed regulating tube 9, thereby rotating the speed regulating column 13. Since the speed regulating column 13 extends to the speed regulating groove 14 of the speed regulating wheel 8, the speed regulating column 13 will push the speed regulating wheel 8 to move when it rotates, that is, push the transmission shaft 1 to move.

[0079] The drive shaft 1 is controlled to rotate through the power device and the transmission mechanism. The steering wheel 22 is turned to rotate the worm 21, the worm 21 drives the turbine 19 to rotate, and the turbine 19 drives the transmission sun gear 20 to rotate. Since the transmission sun gear 20 is meshed with the transmission planetary gear 25, the transmission sun gear 20 drives the transmission planetary gear 25 to rotate on the transmission ring gear 26, so that the transmission planetary gear 25 drives the transmission member 24 to rotate, and the transmission member 24 drives the drive shaft 1 to rotate, and finally the effect of rotating the drive shaft 1 by controlling the steering wheel 22 on the power device is achieved.

[0080] When the speed regulating device is used to control the transmission shaft 1 to move left, the clamping column 28 at the left end of the transmission shaft 1 slides left in the clamping groove 27, and the left end of the transmission shaft 1 slides left in the transmission member 24 (the left end of the transmission shaft 1 will never be out of engagement with the transmission member 24), and the right end of the transmission shaft 1 drives the speed change sun gear 5 to move left, and the speed change sun gear 5 moves left and engages with the speed change planetary gear 7, and then, the steering wheel 22 of the power device is turned, and the transmission shaft 1 is controlled to rotate through the power device and the transmission mechanism, and the speed change planetary gear 7 at the right end of the transmission shaft 1 rotates to drive the speed change planetary gear 7 to rotate, and the speed change planetary gear 7 rotates and moves on the carrier gear ring 3, and finally the speed change planetary gear 7 drives the output speed change member 4 to rotate.

[0081] When the speed regulating device is used to control the transmission shaft 1 to move to the right, the clamping column 28 at the left end of the transmission shaft 1 slides to the right in the clamping groove 27, and the left end of the transmission shaft 1 slides to the right in the transmission member 24 (the left end of the transmission shaft 1 will never be disengaged from the transmission member 24), and the right end of the transmission shaft 1 drives the speed change sun gear 5 to move to the right. After moving to the right, the speed change sun gear 5 disengages from the speed change planetary gear 7, and the speed change sun gear 5 moves to the right into the output transmission member 4 and engages with the speed change ring gear 6 inside the output transmission member 4. Then, the steering wheel 22 of the power unit is turned, and the transmission shaft 1 is controlled to rotate through the power unit and the transmission mechanism. The speed change sun gear 5 at the right end of the transmission shaft 1 drives the speed change ring gear 6 to rotate, that is, the speed change sun gear 5 drives the output transmission member 4 to rotate.

[0082] Turn the steering wheel 22 to make the transmission shaft 1 rotate one circle. If the speed sun gear 5 is meshed with the speed ring gear 6 at this time, the output speed change member 4 will rotate one circle. If the speed sun gear 5 is meshed with the speed planetary gear 7 at this time, the output speed change member 4 will rotate less than one circle. Therefore, when the transmission shaft 1 is turned to the right (the speed sun gear 5 is meshed with the speed ring gear 6), the rotation speed of the output speed change member 4 is faster than that of the output speed change member 4 when the transmission shaft 1 is turned to the left (the speed sun gear 5 is meshed with the speed planetary gear 7). Therefore, the output speed change member 4 in the present technical solution can have two different rotation speeds and can be adjusted.

[0083] The structure of the technical solution can be installed on an existing spray gun through a connecting member 30. The present invention can be installed on an existing spray gun, the steering wheel 22 is aligned with the steering water spray pipe on the existing spray gun, and the output speed change member 4 is fixedly connected to the transmission rod on the existing spray gun. When the steering water spray pipe of the existing spray gun sprays water to the steering wheel 22 to rotate the steering wheel 22, the output speed change member 4 is rotated through the power device, the transmission mechanism, and the driving device, thereby rotating the transmission rod on the existing spray gun, and finally rotating the existing spray gun;

[0084] The rotation speed of the output transmission member 4 can be changed by moving the transmission shaft 1 left and right, that is, the rotation speed of the rotating rod on the existing spray gun can be changed, and finally the rotation speed of the existing spray gun can be changed;

[0085] It should be particularly noted that: through the present invention, the existing spray gun can have two different rotation speeds. When spraying and irrigating different crops, plants or medicines, the existing spray gun needs to reach different rotation speeds so that the crops, plants or medicines can receive appropriate moisture per unit time, thereby achieving the effect of precise irrigation and saving water resources.

[0086] Under the condition that the transmission sun gear 20 and the transmission planetary gear 25 are normally meshed, the transmission planetary gear 25 and the transmission ring gear 26 are normally meshed, the carrier ring gear 3 and the speed planetary gear 7 are normally meshed, the speed planetary gear 7 and the speed sun gear 5 are normally meshed, and the speed sun gear 5 and the speed ring gear 6 are normally meshed, the above parts can have any number of teeth within the range of the number of teeth of the turbine 19, the transmission sun gear 20, the transmission planetary gear 25, the transmission ring gear 26, the carrier ring gear 3, the speed planetary gear 7, the speed sun gear 5, and the speed ring gear 6.

[0087] By utilizing the structure of the clamping groove 27 and the clamping column 28 , the transmission shaft 1 can slide left and right in the transmission member 24 , and the transmission member 27 can also drive the transmission shaft 1 to rotate.

[0088] The push plate 29 is used to receive the force of the water flow sprayed from the steering water spray pipe of the existing spray gun, so that the steering wheel 22 can be rotated by the impact of the water flow.

[0089] The connecting piece is used to connect the present invention to an existing spray gun.

[0090] The eccentric setting of the speed regulating column 13 means that the axis of the speed regulating column 13 and the axis of the rotating column 11 are no longer on the same straight line.

[0091] The speed-changing planetary gear 7 is adapted to the speed-changing sun gear 5; the speed-changing sun gear 5 is adapted to the speed-changing ring gear 6 in the following sense: when the transmission shaft 1 moves left and right, it will drive the speed-changing sun gear 5 to move left and right, and when the speed-changing sun gear 5 moves to the position of the speed-changing planetary gear 7, the speed-changing sun gear 5 will mesh with the speed-changing planetary gear 7, and when the speed-changing sun gear 5 moves to the position of the speed-changing ring gear 6, the speed-changing sun gear 5 will mesh with the speed-changing ring gear 6.

[0092] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the attached Figure 1 The orientation or position relationship shown is only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

Claims

1. A transmission, characterized in that: Including a speed change device; The speed change device comprises a transmission shaft (1), a connection shell (2) sleeved on the outside of the transmission shaft (1), a carrier gear ring (3) fixedly arranged on the inner surface of the connection shell (2), a speed change sun gear (5) fixedly arranged at the end of the transmission shaft (1), a cylindrical output speed change member (4) rotatably arranged with the connection shell (2), a speed change ring (6) fixedly arranged on the inner surface of the output speed change member (4), and a speed change planetary gear (7) rotatably arranged with the end surface of the output speed change member (4); the speed change planetary gear (7) meshes with the carrier gear ring (3); the speed change planetary gear (7) is adapted to the speed change sun gear (5); and the speed change sun gear (5) is adapted to the speed change ring (6); The speed change sun gear (5) slides along the axis of the output speed change member (4); A cylindrical connecting piece (30) is provided between the output speed changing piece (4) and the connecting shell (2); the output speed changing piece (4) is rotatably matched with the inner wall of the connecting piece (30); and the end of the connecting piece (30) is fixedly connected to the end of the connecting shell (2); It also includes a speed regulating device; the speed regulating device is used to drive the transmission shaft (1) to slide inside the connecting shell (2); The speed regulating device comprises a speed regulating tube (9) fixedly connected to the side of the connecting shell (2), a rotating column (11) rotatably arranged inside the speed regulating tube (9), and a speed regulating column (13) fixedly connected to the end of the rotating column (11); the speed regulating column (13) is eccentrically arranged; a speed regulating wheel (8) is fixedly connected to the middle of the transmission shaft (1); a speed regulating groove (14) is formed on the cylindrical surface of the speed regulating wheel (8) along the circumference of the speed regulating wheel (8); and the speed regulating column (13) extends into the speed regulating groove (14); The side surface of the speed regulating tube (9) is provided with a long groove (10) along the circumferential direction; the side surface of the rotating column (11) is fixedly connected with a speed regulating rod (12); the speed regulating rod (12) passes through the long groove (10) and is slidably matched with the long groove (10); The speed regulating tube (9) is provided with locking holes (15) at both ends of the long slot (10); the diameter of the locking hole (15) is larger than the slot width of the long slot (10); a tension spring (16) is provided on the outer surface of the speed regulating rod (12); one end of the tension spring (16) is fixedly connected to the speed regulating rod (12); the other end of the tension spring (16) is fixedly connected to a locking rod (17) which is slidably sleeved with the speed regulating rod (12); the locking rod (17) is clamped with the locking hole (15); It also includes a driving device; the driving device includes a driving mechanism arranged on one side of the speed change device and a transmission mechanism arranged between the driving mechanism and the speed change device; the driving mechanism is fixedly connected to the connecting shell (2) via a mounting shell (18); The driving mechanism comprises a turbine (19) and a worm (21) meshing with the turbine (19); the turbine (19) and the worm (21) are both arranged inside the mounting shell (18); the turbine (19) drives the transmission shaft (1) to rotate through the transmission mechanism; The transmission mechanism comprises a transmission member (24), a transmission sun gear (20) coaxially fixedly connected to the turbine (19), and a transmission planetary gear (25) rotatably arranged on the end surface of the transmission member (24); the transmission sun gear (20) is meshed with the transmission planetary gear (25); the end of the transmission member (24) away from the transmission planetary gear (25) is detachably connected to the end of the transmission shaft (1); the transmission mechanism is fixedly connected between the connection shell (2) and the mounting shell (18) via a bearing shell (23); A transmission ring gear (26) is fixedly connected to the inner surface of the end of the mounting shell (18); the transmission planetary gear (25) meshes with the transmission ring gear (26); The end of the transmission member (24) connected to the transmission shaft (1) is provided with a slot (27) along the axial direction; the end of the transmission shaft (1) connected to the transmission member (24) is fixedly connected with a slot column (28) perpendicular to the transmission shaft (1); the slot column (28) is slidably engaged with the slot (27); the transmission shaft (1) is slidably engaged with the transmission member (24); The end of the worm (21) passes through the mounting shell (18), extends to the outside of the mounting shell (18), and is fixedly connected to a steering wheel (22); a push plate (29) is fixedly arranged on the end surface of the steering wheel (22) along the circumferential direction.

Images