Power reversing transmission structure of tractor

Abstract

The invention relates to the technical field of tractors, in particular to a tractor power reversing transmission structure which comprises a reversing transmission body, a driving rod, a rotating disc, a cooling box and a water filling nozzle, the driving rod penetrates through the reversing transmission body, the driving rod is fixedly sleeved with the rotating disc, and the water filling nozzle is formed in the top end of the cooling box. The device further comprises a connecting assembly, a cooling assembly and a cover plate assembly, the connecting assembly is arranged between the reversing transmission body and the cooling box, the cooling assembly is arranged at the top end of the cooling box, and the cover plate assembly is arranged on the cooling box and seals the water injection opening. And then the cooling assembly is started, so that the cooling assembly cools the water absorbing the heat, the cooled water returns to the interior of the cooling box again to absorb the heat generated by the reversing transmission main body, meanwhile, the cooling assembly is arranged at the top end of the cooling box, and the generated heat is directly discharged into the air. The cooling water is prevented from absorbing heat generated by the cooling assembly, and the cooling efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tractors, and in particular to a power reversing transmission structure of a tractor. Background Art

[0002] The engine power output of the tractor is mainly completed by mechanical transmission such as conventional gears, synchronizers or meshing sleeves. The gear meshing is controlled by a handle and other mechanical structures such as a shift fork to change the transmission direction, and finally achieve forward or backward movement, but power reversal cannot be achieved. This conventional mechanical reversing tractor is cumbersome to use, causing the tractor control device to heat up severely and easily malfunction.

[0003] In the prior art, a patent document with a publication number of CN214800485U discloses a tractor power reversing control device, including a device body and a cooling box, a driving rod is provided through one side of the device body, a rotating disk is fixedly sleeved on the outer side of the driving rod near one end, a cooling mechanism is provided on the upper side of the device body, a connecting mechanism is provided between the device body and the cooling box, the cooling mechanism includes two groups of bent pipes, a connecting pipe is fixedly connected between the bottom ends of the two groups of bent pipes, and a No. 1 boost pump and a No. 2 boost pump are respectively installed near the two sides of the inner bottom surface of the cooling box.

[0004] During use, it was found that the above-mentioned device cools down water through a refrigerator, and the cooling water cools down the main body of the device. However, the refrigerator is arranged in a cooling box. The refrigerator generates heat during operation, and the heat will also be absorbed by the water, reducing the cooling effect and affecting the cooling of the main body of the device. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a power reversing transmission structure of a tractor with a prolonged service life.

[0006] The power reversing transmission structure of a tractor of the present invention comprises a reversing transmission body, a driving rod, a rotating disk, a cooling box and a water injection port, wherein the driving rod is provided through the reversing transmission body, the rotating disk is fixedly mounted on the driving rod, the water injection port is provided on the top of the cooling box, and further comprises a connecting assembly, a cooling assembly and a cover assembly, wherein a connecting assembly is provided between the reversing transmission body and the cooling box, the cooling assembly is provided on the top of the cooling box, the cover assembly is provided on the cooling box, and the cover assembly seals the water injection port; when in use, the cooling box is fixedly mounted on the top of the reversing transmission body through the connecting assembly, and the cooling box is Water is injected into the cooling box through the water filling port, and then the cover plate assembly seals the water filling port. Then the reversing transmission body generates heat, and the heat is absorbed by the water in the cooling box through heat transfer. Then the cooling assembly is started to cool the water that absorbs the heat. The cooled water returns to the cooling box to absorb the heat generated by the reversing transmission body. At the same time, since the cooling assembly is arranged at the top of the cooling box, the generated heat is directly discharged into the air, which avoids the cooling water absorbing the heat generated by the cooling assembly, thereby improving the cooling efficiency.

[0007] Preferably, the cooling assembly includes a heat sink, a submersible pump, a support seat, a water suction pipe, a water outlet pipe, a refrigerator, a No. 1 cold water pipe, a support plate, a hydraulic motor, a rotating shaft, fan blades, a protective cover and a No. 2 cold water pipe, a plurality of groups of heat sinks are arranged at the bottom end of the cooling box, the submersible pump is installed at the bottom end of the cooling box through the support seat, a water suction pipe is arranged at the input end of the submersible pump, a refrigerator is arranged at the top of the cooling box, a water outlet pipe is arranged at the output end of the submersible pump, the output end of the water outlet pipe is connected with the input end of the refrigerator, a support plate is arranged at the top of the cooling box, a hydraulic motor is installed on the support plate, a rotating shaft is arranged at the output end of the hydraulic motor, fan blades are arranged on the rotating shaft, a No. 1 cold water pipe is arranged at the output end of the refrigerator, the output end of the No. 1 cold water pipe is connected with the water channel input end of the hydraulic motor, the water channel output end of the hydraulic motor is connected with the input end of the No. 2 cold water pipe, and the output end of the No. 2 cold water pipe extends to Inside the cooling box, a protective cover is provided on the top of the cooling box, and the refrigerator, hydraulic motor and fan blades are all on the inner side of the protective cover; when in use, multiple groups of heat sinks dissipate the heat transferred by the reversing transmission body, so that the water inside the cooling box absorbs the heat, and then the submersible pump and the refrigerator are started, so that the water that absorbs the heat inside the cooling box enters the refrigerator through the outlet pipe for cooling, and the cooled water starts the hydraulic motor through the No. 1 cold water pipe and drives the fan blades to rotate rapidly through the rotating shaft, so that the outside air and the air inside the protective cover flow, so as to dissipate the heat generated by the refrigerator cooling the water, and the cooled water passes through the hydraulic motor and circulates to the inside of the cooling box through the No. 2 cold water pipe again, and continues to absorb and cool the heat generated by the reversing transmission body, thereby improving the cooling efficiency and converting the kinetic energy of the water into the rotational mechanical energy of the fan blades to cool the refrigerator.

[0008] Preferably, the connecting assembly comprises a positioning plate, a ball-end screw, an L-shaped fixing plate, a positioning hole, a No. 1 threaded groove, a positioning circular hole and a locking bolt, wherein a group of positioning plates are respectively provided at the top ends of the left and right ends of the reversing transmission main body, and a group of ball-end screws are embedded and installed at the bottom end of each group of positioning plates, and the left and right sides of the bottom end of the cooling box are respectively provided with a group of L-shaped fixing plates, and each group of L-shaped fixing plates has a group of positioning holes at the bottom end. The outer ends of the two groups of positioning plates are respectively provided with No. 1 threaded grooves, and each group of L-shaped fixing plates is respectively provided with a positioning circular hole, and the locking bolt passes through a group of positioning circular holes and is threadedly connected with a group of No. 1 threaded grooves; when in use, the two groups of L-shaped fixing plates are respectively slidably adapted to a group of positioning plates, a group of ball-end screws are clamped to a group of positioning holes, and then a group of No. 1 threaded grooves coincide with a group of positioning circular holes, and then the locking bolt passes through a group of positioning circular holes and is threadedly connected with a group of No. 1 threaded grooves, thereby completing the connection between the reversing transmission main body and the cooling box, improving the convenience of connection while improving the firmness of the connection.

[0009] Preferably, the cover assembly includes a No. 1 axle pin, a cover body, a No. 2 axle pin, a connecting plate, a butterfly bolt and a No. 2 threaded groove. The cover body is hinged to the top of the cooling box with the cooperation of the No. 1 axle pin, and the connecting plate is hinged to the cover body with the cooperation of the No. 2 axle pin. The connecting plate is threaded with a butterfly bolt, and a No. 2 threaded groove is provided at the front end of the cooling box, and the butterfly bolt is threadedly connected to the No. 2 threaded groove; when water is injected into the cooling box through the water injection port, the staff operates the cover body to seal the water injection port with the cooperation of the No. 1 axle pin, and then rotates the butterfly bolt so that the butterfly bolt is threadedly connected to the No. 2 threaded groove, thereby completing the fixation of the cover body and improving the sealing.

[0010] Preferably, it further comprises an inner locking component, which is arranged inside the cooling box and is used to lock the cover body; The inner locking assembly includes a shell, a water outlet, a sealing block, a spring, a plug rod and a fixing plate. The input end of the shell is connected to the output end of the No. 2 cold water pipe, and a plurality of groups of water outlet holes are arranged at the bottom end of the shell. A sealing block is provided for sealing and sliding inside the shell. A plug rod is provided at the front end of the sealing block. The front end of the plug rod extends to the front side of the shell, and the plug rod is slidably connected to the shell. The spring is sleeved on the outside of the plug rod inside the shell. A fixing plate is provided at the bottom end of the cover body, and a socket is provided on the fixing plate. When the cover body seals the water inlet, the cooling water enters the shell through the No. 2 cold water pipe, and the water pressure inside the shell pushes the sealing block forward, so that the plug rod is inserted into the socket on the fixing plate, and the water is sprayed into the cooling box through the plurality of water outlet holes, thereby preventing the butterfly bolt and the No. 2 thread groove from being threadedly released in time when the submersible pump and the refrigerator are in working state. The plug rod clamps the socket to ensure that the cover body still cannot be opened, thereby improving safety.

[0011] Preferably, it also includes a sealing gasket, which is arranged on the cover body; when the cover body seals the water inlet, the sealing gasket seals the gap between the cooling box and the cover body to prevent water leakage and improve the sealing performance.

[0012] Preferably, it also includes a handle. A handle is provided on the top of the cooling box; the staff moves the cooling box with the help of the handle to improve convenience.

[0013] Preferably, it also includes a flat washer, and the locking bolt is sleeved with the flat washer; the locking bolt increases the contact area with the L-shaped fixing plate through the flat washer, thereby improving the connection firmness.

[0014] Preferably, it also includes ventilation holes, and the protective cover is provided with a plurality of groups of ventilation holes; the outside air passes through the plurality of groups of ventilation holes to accelerate the heat exchange efficiency with the refrigerator.

[0015] Preferably, it also includes an observation window. The front end of the cooling box is provided with an observation port, and the observation port is installed with an observation window. The staff observes the water filling situation inside the cooling box through the observation window, thereby improving convenience.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: when in use, the cooling box is fixedly installed on the top of the reversing transmission body through the connecting assembly, water is injected into the cooling box through the water injection port, and then the cover plate assembly is used to seal the water injection port. Then, the reversing transmission body generates heat during operation, and the heat is absorbed by the water inside the cooling box through heat transfer. Then, the cooling assembly is started, so that the cooling assembly cools the water that absorbs the heat, and the cooled water returns to the cooling box to absorb the heat generated by the reversing transmission body. At the same time, since the cooling assembly is arranged on the top of the cooling box, the generated heat is directly discharged into the air, which avoids the cooling water absorbing the heat generated by the cooling assembly, thereby improving the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the axonometric structure of the present invention; Figure 2 is a first exploded schematic diagram of the present invention; Figure 3 is a second exploded schematic diagram of the present invention; Figure 4 It is an enlarged structural schematic diagram of the cover plate body and the fixing plate and other structures; Figure 5 is a third exploded schematic diagram of the present invention; Figure 6 yes Figure 5 A partial enlarged structural diagram of the middle part; Figure 7 It is an enlarged structural diagram of the locking bolt, flat washer and other structures; Figure 8 It is the first enlarged structural diagram of the submersible pump and the refrigerator; Fig. 9 It is a second enlarged structural diagram of structures such as a submersible pump and a refrigerator; Fig.10 yes Fig. 9 A schematic diagram of the partially enlarged structure of the middle B part; Fig.11 It is an enlarged structural diagram of the shell, spring and other structures; Fig.12 It is an enlarged structural diagram of the cover plate body and connecting plate and other structures; Fig.13 yes Fig.12 Schematic diagram of the partial enlarged structure of part C in the middle.

[0018] Markings in the attached drawings: 101, reversing transmission body; 102, driving rod; 103, rotating disk; 104, cooling box; 105, water inlet; 106, handle; 107, observation window; 201, heat sink; 202, submersible pump; 203, support seat; 204, water suction pipe; 205, water outlet pipe; 206, refrigerator; 207, No. 1 cold water pipe; 208, support plate; 209, water motor; 210, rotating shaft; 211, fan blade; 212, protective cover; 213, No. 2 cold water pipe; 214, ventilation hole; 301, positioning plate; 302, ball screw; 303, L-shaped fixing plate; 304, positioning hole; 305, No. 1 threaded groove; 306, positioning round hole; 307, locking bolt; 308, flat washer; 401, No. 1 shaft pin; 402, cover body; 403, No. 2 shaft pin; 404, connecting plate; 405, butterfly bolt; 406, No. 2 threaded groove; 407, sealing gasket; 501, shell; 502, water outlet; 503, sealing block; 504, spring; 505, plug rod; 506, fixing plate. DETAILED DESCRIPTION

[0019] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive. Example 1

[0020] like Figures 1 to 13 As shown, a power reversing transmission structure of a tractor of the present invention comprises a reversing transmission body 101, a driving rod 102, a rotating disk 103, a cooling box 104 and a water injection port 105, wherein the reversing transmission body 101 is provided with a driving rod 102, the driving rod 102 is fixedly sleeved with a rotating disk 103, the top of the cooling box 104 is provided with a water injection port 105, and further comprises a connecting component, a cooling component and a cover plate component, wherein a connecting component is provided between the reversing transmission body 101 and the cooling box 104, the top of the cooling box 104 is provided with a cooling component, the cooling box 104 is provided with a cover plate component, and the cover plate component seals the water injection port 105; The cooling assembly includes a heat sink 201, a submersible pump 202, a support seat 203, a water suction pipe 204, a water outlet pipe 205, a refrigerator 206, a No. 1 cold water pipe 207, a support plate 208, a hydraulic motor 209, a rotating shaft 210, a fan blade 211, a protective cover 212 and a No. 2 cold water pipe 213. The bottom end of the cooling box 104 is provided with multiple groups of heat sinks 201. The submersible pump 202 is installed at the bottom end of the cooling box 104 through the support seat 203. The input end of the submersible pump 202 is provided with a water suction pipe 204. The top of the cooling box 104 is provided with a refrigerator 206. The output end of the submersible pump 202 is provided with a water outlet pipe 205. The output end of the water outlet pipe 205 is connected to the input end of the refrigerator 206. A support plate 208 is provided at the top of the cooling box 104, a hydraulic motor 209 is installed on the support plate 208, a rotating shaft 210 is provided at the output end of the hydraulic motor 209, a fan blade 211 is provided on the rotating shaft 210, a No. 1 cold water pipe 207 is provided at the output end of the refrigerator 206, the output end of the No. 1 cold water pipe 207 is connected with the water channel input end of the hydraulic motor 209, the water channel output end of the hydraulic motor 209 is connected with the input end of the No. 2 cold water pipe 213, the output end of the No. 2 cold water pipe 213 extends to the inside of the cooling box 104, a protective cover 212 is provided at the top of the cooling box 104, the refrigerator 206, the hydraulic motor 209 and the fan blade 211 are all on the inner side of the protective cover 212; The connecting assembly includes a positioning plate 301, a ball screw 302, an L-shaped fixing plate 303, a positioning hole 304, a No. 1 thread groove 305, a positioning circular hole 306 and a locking bolt 307. A group of positioning plates 301 are respectively provided at the top of the left and right ends of the reversing transmission body 101, and a group of ball screws 302 are embedded and installed at the bottom end of each group of positioning plates 301. A group of L-shaped fixing plates 303 are respectively provided at the left and right parts of the bottom end of the cooling box 104, and a group of positioning holes 304 are respectively provided at the bottom end of each group of L-shaped fixing plates 303. The outer ends of the two groups of positioning plates 301 are respectively provided with No. 1 thread grooves 305, and each group of L-shaped fixing plates 303 is respectively provided with positioning circular holes 306. The locking bolt 307 passes through a group of positioning circular holes 306 and is threadedly connected with a group of No. 1 thread grooves 305. The cover assembly includes a No. 1 axle pin 401, a cover body 402, a No. 2 axle pin 403, a connecting plate 404, a butterfly bolt 405 and a No. 2 thread groove 406. The cover body 402 is hinged to the top of the cooling box 104 with the cooperation of the No. 1 axle pin 401, and the connecting plate 404 is hinged to the cover body 402 with the cooperation of the No. 2 axle pin 403. The connecting plate 404 is threaded with a butterfly bolt 405. The front end of the cooling box 104 is provided with a No. 2 thread groove 406, and the butterfly bolt 405 is threadedly connected to the No. 2 thread groove 406.

[0021] In this embodiment, two groups of L-shaped fixing plates 303 are respectively slidably matched with a group of positioning plates 301, a group of ball screws 302 are fixed to a group of positioning holes 304, and then a group of No. 1 threaded grooves 305 coincide with a group of positioning circular holes 306, and then the locking bolts 307 pass through a group of positioning circular holes 306 and are threadedly connected with a group of No. 1 threaded grooves 305, thereby completing the connection between the reversing transmission body 101 and the cooling box 104. When water is injected into the cooling box 104 through the water injection port 105, the staff operates the cover plate body 402 to seal the water injection port 105 with the cooperation of the No. 1 shaft pin 401, and then rotates the butterfly bolt 405, so that the butterfly bolt 405 is threadedly connected with the No. 2 threaded groove 406, thereby completing the fixation of the cover plate body 402, and multiple groups of heat sinks 201 are connected to the reversing The heat transferred by the transmission body 101 is dissipated, so that the water inside the cooling box 104 absorbs the heat, and then the submersible pump 202 and the refrigerator 206 are started, so that the water that absorbs heat inside the cooling box 104 enters the refrigerator 206 through the outlet pipe 205 for cooling. The cooled water starts the hydraulic motor 209 through the No. 1 cold water pipe 207 and drives the fan blades 211 to rotate rapidly through the rotating shaft 210, so that the outside air and the air inside the protective cover 212 flow, thereby dissipating the heat generated by the refrigerator 206 cooling the water. The cooled water passes through the hydraulic motor 209 and circulates to the cooling box 104 again through the No. 2 cold water pipe 213, and continues to absorb and cool the heat generated by the reversing transmission body 101. Example 2

[0022] like Figures 1 to 13 As shown, a power reversing transmission structure of a tractor of the present invention comprises a reversing transmission body 101, a driving rod 102, a rotating disk 103, a cooling box 104 and a water injection port 105, wherein the reversing transmission body 101 is provided with a driving rod 102, the driving rod 102 is fixedly sleeved with a rotating disk 103, the top of the cooling box 104 is provided with a water injection port 105, and further comprises a connecting component, a cooling component and a cover plate component, wherein a connecting component is provided between the reversing transmission body 101 and the cooling box 104, the top of the cooling box 104 is provided with a cooling component, the cooling box 104 is provided with a cover plate component, and the cover plate component seals the water injection port 105; The cooling assembly includes a heat sink 201, a submersible pump 202, a support seat 203, a water suction pipe 204, a water outlet pipe 205, a refrigerator 206, a No. 1 cold water pipe 207, a support plate 208, a hydraulic motor 209, a rotating shaft 210, a fan blade 211, a protective cover 212 and a No. 2 cold water pipe 213. The bottom end of the cooling box 104 is provided with multiple groups of heat sinks 201. The submersible pump 202 is installed at the bottom end of the cooling box 104 through the support seat 203. The input end of the submersible pump 202 is provided with a water suction pipe 204. The top of the cooling box 104 is provided with a refrigerator 206. The output end of the submersible pump 202 is provided with a water outlet pipe 205. The output end of the water outlet pipe 205 is connected to the input end of the refrigerator 206. A support plate 208 is provided at the top of the cooling box 104, a hydraulic motor 209 is installed on the support plate 208, a rotating shaft 210 is provided at the output end of the hydraulic motor 209, a fan blade 211 is provided on the rotating shaft 210, a No. 1 cold water pipe 207 is provided at the output end of the refrigerator 206, the output end of the No. 1 cold water pipe 207 is connected with the water channel input end of the hydraulic motor 209, the water channel output end of the hydraulic motor 209 is connected with the input end of the No. 2 cold water pipe 213, the output end of the No. 2 cold water pipe 213 extends to the inside of the cooling box 104, a protective cover 212 is provided at the top of the cooling box 104, the refrigerator 206, the hydraulic motor 209 and the fan blade 211 are all on the inner side of the protective cover 212; The connecting assembly includes a positioning plate 301, a ball screw 302, an L-shaped fixing plate 303, a positioning hole 304, a No. 1 thread groove 305, a positioning circular hole 306 and a locking bolt 307. A group of positioning plates 301 are respectively provided at the top of the left and right ends of the reversing transmission body 101, and a group of ball screws 302 are embedded and installed at the bottom end of each group of positioning plates 301. A group of L-shaped fixing plates 303 are respectively provided at the left and right parts of the bottom end of the cooling box 104, and a group of positioning holes 304 are respectively provided at the bottom end of each group of L-shaped fixing plates 303. The outer ends of the two groups of positioning plates 301 are respectively provided with No. 1 thread grooves 305, and each group of L-shaped fixing plates 303 is respectively provided with positioning circular holes 306. The locking bolt 307 passes through a group of positioning circular holes 306 and is threadedly connected with a group of No. 1 thread grooves 305. The cover plate assembly includes a No. 1 shaft pin 401, a cover plate body 402, a No. 2 shaft pin 403, a connecting plate 404, a butterfly bolt 405 and a No. 2 thread groove 406. The cover plate body 402 is hinged to the top of the cooling box 104 with the cooperation of the No. 1 shaft pin 401, and the connecting plate 404 is hinged to the cover plate body 402 with the cooperation of the No. 2 shaft pin 403. The butterfly bolt 405 is screwed on the connecting plate 404. The front end of the cooling box 104 is provided with a No. 2 thread groove 406, and the butterfly bolt 405 is threadedly connected with the No. 2 thread groove 406; It also includes an inner locking component, which is disposed inside the cooling box 104 and is used to lock the cover body 402; The inner locking assembly includes a shell 501, a water outlet 502, a sealing block 503, a spring 504, a plug rod 505 and a fixing plate 506. The input end of the shell 501 is connected to the output end of the second cold water pipe 213. The bottom end of the shell 501 is provided with multiple groups of water outlets 502. The shell 501 is sealed and slidably provided with a sealing block 503 inside. The front end of the sealing block 503 is provided with a plug rod 505. The front end of the plug rod 505 extends to the front side of the shell 501. The plug rod 505 is slidably connected to the shell 501. The spring 504 is sleeved on the outside of the plug rod 505 inside the shell 501. The bottom end of the cover body 402 is provided with a fixing plate 506, and the fixing plate 506 is provided with a socket; It also includes a sealing gasket 407, a handle 106, a flat gasket 308, an air vent 214 and an observation window 107. A sealing gasket 407 is arranged on the cover body 402, a handle 106 is arranged on the top of the cooling box 104, a flat gasket 308 is mounted on the locking bolt 307, a plurality of air vents 214 are arranged on the protective cover 212, an observation port is arranged at the front end of the cooling box 104, and an observation window 107 is installed on the observation port.

[0023] In this embodiment, two groups of L-shaped fixing plates 303 are respectively slidably adapted with a group of positioning plates 301, a group of ball screws 302 are fixed to a group of positioning holes 304, and then a group of No. 1 thread grooves 305 coincide with a group of positioning circular holes 306, and then the locking bolts 307 pass through a group of positioning circular holes 306 and are threadedly connected with a group of No. 1 thread grooves 305, thereby completing the connection between the reversing transmission body 101 and the cooling box 104. When water is injected into the cooling box 104 through the water injection port 105, the staff operates the cover body 402 in one The water inlet 105 is sealed with the cooperation of the No. 1 shaft pin 401, and then the butterfly bolt 405 is rotated so that the butterfly bolt 405 is threadedly connected with the No. 2 thread groove 406, thereby completing the fixing of the cover plate body 402. The multiple groups of heat sinks 201 dissipate the heat transferred by the reversing transmission body 101, so that the water inside the cooling box 104 absorbs the heat, and then the submersible pump 202 and the refrigerator 206 are started, so that the water that absorbs the heat inside the cooling box 104 enters the refrigerator 206 through the outlet pipe 205 for cooling. The cooling water starts the hydraulic motor 209 through the first cold water pipe 207 and drives the fan blade 211 to rotate rapidly through the rotating shaft 210, so that the outside air and the air inside the protective cover 212 flow, thereby dissipating the heat generated by the water cooling of the refrigerator 206. The cooling water passes through the hydraulic motor 209 and recirculates to the cooling box 104 through the second cold water pipe 213, and continues to absorb and cool the heat generated by the reversing transmission body 101. When the cover body 402 is filled with water When the port 105 is sealed, the cooling water enters the shell 501 through the No. 2 cold water pipe 213, and the water pressure inside the shell 501 pushes the sealing block 503 forward, so that the plug rod 505 is inserted into the socket on the fixed plate 506, and the water is sprayed into the cooling box 104 through multiple groups of water outlet holes 502, thereby preventing the butterfly bolt 405 from being threadedly released from the No. 2 thread groove 406 in time when the submersible pump 202 and the refrigerator 206 are in working state. The plug rod 505 clamps the socket to ensure that the cover body 402 still cannot be opened.

[0024] The submersible pump 202, refrigerator 206, hydraulic motor 209 and ball screw 302 of the power reversing transmission structure of a tractor of the present invention are purchased on the market. Technical personnel in the industry only need to install and operate them according to the accompanying instruction manual without the need for technical personnel in this field to make creative efforts.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A power reversing transmission structure for a tractor, comprising a reversing transmission body (101), a driving rod (102), a rotating disk (103), a cooling box (104) and a water injection port (105), wherein the reversing transmission body (101) is provided with a driving rod (102) penetrating therethrough, the driving rod (102) is fixedly sleeved with a rotating disk (103), and the top of the cooling box (104) is provided with a water injection port (105), characterized in that: It also comprises a connection assembly, a cooling assembly and a cover assembly. A connection assembly is provided between the reversing transmission body (101) and the cooling box (104). A cooling assembly is provided at the top of the cooling box (104). A cover assembly is provided on the cooling box (104). The cover assembly seals the water injection port (105).

2. A power reversing transmission structure for a tractor as claimed in claim 1, characterized in that: The cooling assembly comprises a heat sink (201), a submersible pump (202), a support seat (203), a water suction pipe (204), a water outlet pipe (205), a refrigerator (206), a first cold water pipe (207), a support plate (208), a hydraulic motor (209), a rotating shaft (210), a fan blade (211), a protective cover (212) and a second cold water pipe (213). The bottom end of the cooling box (104) is provided with a plurality of heat sinks (201). The submersible pump (202) is installed at the bottom end of the cooling box (104) through the support seat (203). The input end of the submersible pump (202) is provided with a water suction pipe (204). The top end of the cooling box (104) is provided with a refrigerator (206). The output end of the submersible pump (202) is provided with a water outlet pipe (205). The output end of the water outlet pipe (205) is connected to the input end of the refrigerator (206). The cooling box (104) is connected to the cooling box (104), a support plate (208) is provided at the top end, a hydraulic motor (209) is mounted on the support plate (208), a rotating shaft (210) is provided at the output end of the hydraulic motor (209), a fan blade (211) is provided on the rotating shaft (210), a first cold water pipe (207) is provided at the output end of the refrigerator (206), the output end of the first cold water pipe (207) is connected to the water channel input end of the hydraulic motor (209), the water channel output end of the hydraulic motor (209) is connected to the input end of the second cold water pipe (213), the output end of the second cold water pipe (213) extends to the interior of the cooling box (104), a protective cover (212) is provided at the top end of the cooling box (104), and the refrigerator (206), the hydraulic motor (209) and the fan blade (211) are all on the inner side of the protective cover (212).

3. The power reversing transmission structure of a tractor according to claim 1, characterized in that: The connection assembly comprises a positioning plate (301), a ball screw (302), an L-shaped fixing plate (303), a positioning hole (304), a No. 1 thread groove (305), a positioning circular hole (306) and a locking bolt (307). A group of positioning plates (301) are respectively arranged at the top of the left and right ends of the reversing transmission body (101). A group of ball screws (302) are embedded and installed at the bottom end of each group of positioning plates (301). A group of L-shaped fixing plates (303) are respectively arranged at the left and right parts of the bottom end of the cooling box (104). A group of positioning holes (304) are respectively arranged at the bottom end of each group of L-shaped fixing plates (303). The outer ends of the two groups of positioning plates (301) are respectively arranged with a No. 1 thread groove (305). A positioning circular hole (306) is respectively arranged on each group of L-shaped fixing plates (303). The locking bolt (307) passes through a group of positioning circular holes (306) and is threadedly connected with a group of No. 1 thread grooves (305).

4. A power reversing transmission structure for a tractor as claimed in claim 2, characterized in that: The cover plate assembly comprises a No. 1 shaft pin (401), a cover plate body (402), a No. 2 shaft pin (403), a connecting plate (404), a butterfly bolt (405) and a No. 2 thread groove (406); the cover plate body (402) is hinged to the top end of the cooling box (104) in cooperation with the No. 1 shaft pin (401); the connecting plate (404) is hinged to the cover plate body (402) in cooperation with the No. 2 shaft pin (403); the butterfly bolt (405) is threadedly mounted on the connecting plate (404); the cooling box (104) is provided with a No. 2 thread groove (406) at the front end; the butterfly bolt (405) is threadedly connected to the No. 2 thread groove (406).

5. A power reversing transmission structure for a tractor as claimed in claim 4, characterized in that: It also includes an inner locking component, which is arranged inside the cooling box (104) and is used to lock the cover plate body (402); The inner locking assembly comprises a shell (501), a water outlet hole (502), a sealing block (503), a spring (504), an insertion rod (505) and a fixing plate (506); the input end of the shell (501) is connected to the output end of the second cold water pipe (213); a plurality of water outlet holes (502) are arranged at the bottom end of the shell (501); a sealing block (503) is sealingly and slidably arranged inside the shell (501); a insertion rod (505) is arranged at the front end of the sealing block (503); the front end of the insertion rod (505) extends to the front side of the shell (501); the insertion rod (505) is slidably connected to the shell (501); the spring (504) is sleeved on the outside of the insertion rod (505) inside the shell (501); a fixing plate (506) is arranged at the bottom end of the cover body (402); and a socket is arranged on the fixing plate (506).

6. A power reversing transmission structure for a tractor as claimed in claim 4, characterized in that: It also includes a sealing gasket (407), and the sealing gasket (407) is arranged on the cover plate body (402).

7. The power reversing transmission structure of a tractor according to claim 1, characterized in that: It also includes a handle (106), and the top of the cooling box (104) is provided with a handle (106).

8. The power reversing transmission structure of a tractor as claimed in claim 3, characterized in that: It also includes a flat washer (308), and the locking bolt (307) is sleeved with the flat washer (308).

9. The power reversing transmission structure of a tractor as claimed in claim 2, characterized in that: It also includes ventilation holes (214), and the protective cover (212) is provided with a plurality of groups of ventilation holes (214).

10. The power reversing transmission structure of a tractor according to claim 1, characterized in that: It also comprises an observation window (107); the cooling box (104) is provided with an observation port at the front end, and the observation window (107) is installed on the observation port.

Images