Gear box

Abstract

The utility model provides a gear box which comprises a box shell body, a driving gear, an executing gear, a gear box, a gear box, a gear box and a gear box cover, and the driving gear and the executing gear are arranged in the box shell body. A first mounting position is further arranged on the box shell; the first transmission shaft is detachably connected with the execution teeth, and at least part of the first transmission shaft extends out of the box shell; the second transmission shaft is sleeved and matched with the first mounting position; the elastic piece is arranged in the first mounting position, one end of the elastic piece abuts against and makes contact with the second transmission shaft, and the other end of the elastic piece abuts against and makes contact with the box shell; the middle gear is connected with the second transmission shaft, and the execution gear is in transmission connection with the driving gear through the middle gear; the motor is connected with the driving teeth; a cushioning structure is further arranged in the box shell and clamps and fixes the motor. The gear box solves the problem that a gear box in the prior art is prone to being blocked by foreign matter and damaged due to overload.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission, in particular to a gear box. Background Art

[0002] In the prior art, most gear boxes are easily stuck by foreign objects, resulting in gear overload and damage to the gear box, causing the gear box to be unable to transmit normally and inconvenient maintenance. Utility Model Content

[0003] The utility model solves the problem in the prior art that the gear box is easily stuck by foreign objects and damaged by overload.

[0004] In order to solve the above problems, the utility model provides a gear box, including a box shell, in which driving teeth and executing teeth are arranged, and the executing teeth and the driving teeth are drivingly connected; a first installation position is also provided on the box shell; a first transmission shaft is detachably connected to the executing teeth, and at least a part of the first transmission shaft extends out of the box shell; a second transmission shaft is sleeved and matched with the first installation position; an elastic member is arranged in the first installation position, one end of the elastic member is in abutment contact with the second transmission shaft, and the other end is in abutment contact with the box shell; an intermediate tooth is connected with the second transmission shaft, and the executing teeth are drivingly connected with the driving teeth through the intermediate teeth; a motor is connected with the driving teeth; at least two arc-surface shock-absorbing structures are also provided in the box shell, and the arc-surface shock-absorbing structures clamp the motor.

[0005] Compared with the prior art, the technical effect achieved by the present technical solution is as follows: the motor drives the driving teeth to rotate, the power is transmitted to the executing teeth through the intermediate teeth, the executing teeth drive the first transmission shaft to rotate, and the elastic member is arranged between the second transmission shaft and the box shell that cooperates with the intermediate teeth, which can play a role in shock absorption and noise reduction for the overall transmission system, and can also protect the intermediate teeth when the driving teeth are overloaded, so that the entire transmission system can work stably. The two arc-surface shock-absorbing structures clamp the motor and fit the surface of the motor, which can fix the position of the motor well. When the transmission system encounters special circumstances such as jamming and overload, by cooperating with the elastic member, it can effectively protect the driving teeth, intermediate teeth and executing teeth to avoid component damage or displacement and deformation, thereby reducing the failure rate of the seeder and improving the sowing efficiency.

[0006] Furthermore, the gearbox provided by the utility model also includes: a receiving member and a rotating wheel, the receiving member is arranged on the box shell, and forms a receiving space with the box shell; the rotating wheel is arranged in the receiving space, and the rotating wheel is connected to the execution gear through the first transmission shaft.

[0007] Compared with the prior art, the technical effect achieved by the technical solution is that the accommodating member can protect the rotating wheel, and the executive tooth transmits kinetic energy to the rotating wheel through the first transmission shaft to drive the rotating wheel to rotate.

[0008] Furthermore, the first transmission shaft is provided with a plurality of first ribs along the circumferential direction, and each first rib extends axially along the first transmission shaft; the executive tooth is provided with a first clamping position that cooperates with the first transmission shaft and the first rib; and the rotating wheel is provided with a second clamping position that cooperates with the first transmission shaft and the first rib.

[0009] Compared with the prior art, the technical effect achieved by the present technical solution is as follows: the convex rib and the engaging position cooperate to further limit the circumferential rotation of the first transmission shaft relative to the execution gear and the rotating wheel during operation, and can enhance the transmission effect of the first rotating shaft.

[0010] Furthermore, at least one second mounting position is provided on the box shell; the gear box also includes a fixing member, on which at least one second rib is provided; the first transmission shaft is sleeve-fitted with the fixing member, and the fixing member is snap-fitted with the second mounting position.

[0011] Compared with the prior art, the technical effect achieved by this technical solution is that the fixing member is used to limit the position of the first transmission shaft in the housing, limit the axial and circumferential displacement of the first transmission shaft, and can also abut against the execution tooth to limit the axial displacement of the execution tooth on the first transmission shaft. The second rib can further limit the position of the fixing member on the housing, preventing the fixing member from rotating in the circumferential direction and affecting the transmission efficiency.

[0012] Furthermore, a smooth surface structure is provided on the first transmission shaft; the smooth surface structure abuts against the fixing member.

[0013] Compared with the prior art, the technical effect achieved by the technical solution is: on the basis of the first convex rib strengthening the limit, it ensures that the first transmission shaft can rotate smoothly around the axis in the fixing part, and the smooth surface can also further ensure the structural strength of the first transmission shaft on the basis of the first convex rib strengthening the transmission.

[0014] Furthermore, the gear box provided by the utility model also includes: an adjusting part, which is detachably connected to the box shell; the adjusting part includes an adjusting part shell, and the adjusting part shell is in abutment contact with the accommodating member; a first opening is provided on the accommodating member; a second opening is provided on the adjusting part shell; the first opening and the second opening are arranged correspondingly; the adjusting part is also provided with a accommodating groove.

[0015] Compared with the prior art, the technical effect achieved by this technical solution is as follows: the adjustment part makes it convenient for users to grab the gear box, the adjustment part shell further fixes the position of the container to prevent the container from falling out, and the first opening and the second opening are used to allow foreign contents in the receiving groove to pass through and fall into the receiving space.

[0016] Furthermore, the accommodating member is provided with at least two adjusting grooves; the box shell is provided with an adjusting rib, and the adjusting rib is engaged with the adjusting groove.

[0017] Compared with the prior art, the technical effect achieved by the present technical solution is as follows: the user moves the accommodating member to make the adjustment rib move relatively between the adjustment grooves. At this time, the first opening also moves relative to the second opening, and the overlapping area of ​​the first opening and the second opening changes.

[0018] Furthermore, the adjustment part includes: an execution key; a first execution arm, nested with the execution key; a second execution arm, connected to the first execution arm through a pin shaft; a baffle, movably connected to the second execution arm; the baffle at least partially blocks the second opening.

[0019] Compared with the prior art, the technical effect achieved by the present technical solution is as follows: when the user presses the actuator, the actuator pushes the first actuator arm, the first actuator arm drives the second actuator arm through the pin shaft, the second actuator arm pulls the baffle to control the size of the baffle blocking the second opening.

[0020] Furthermore, the baffle is provided with a hollow structure through which the first transmission shaft can pass.

[0021] Compared with the prior art, the technical effect achieved by this technical solution is that the hollow structure allows the first transmission shaft to pass through without affecting the movement of the baffle.

[0022] Furthermore, the seed drill provided by the utility model also includes: a rotating member, which is arranged at one end of the first transmission shaft extending out of the box shell, and the rotating member is in abutment with the adjustment part shell.

[0023] Compared with the prior art, the technical effect achieved by the present technical solution is as follows: the first transmission shaft drives the rotating member to rotate, and the rotating member is used to stir the external contents near the second opening to prevent the external contents from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the gear box along a first direction;

[0025] Figure 2 is a schematic structural diagram of the gear box along the second direction;

[0026] Figure 3 It is a schematic diagram of the structure of the execution gear;

[0027] Figure 4 is a schematic diagram of the structure of the runner;

[0028] Figure 5 It is a structural schematic diagram of the receiving member and the first transmission shaft;

[0029] Figure 6 is a schematic diagram of the structure of the gearbox housing;

[0030] Figure 7 for Figure 6 A partial enlarged view of the middle A part;

[0031] Figure 8 It is a schematic diagram of the structure of the accommodation member and the box shell;

[0032] Fig. 9 for Figure 8 A partial enlarged view of part B in the middle;

[0033] Fig.10 It is a structural schematic diagram of the regulating part;

[0034] Fig.11 for Fig.10 A partial enlarged view of part C in the middle.

[0035] Description of reference numerals:

[0036] 1-gearbox; 100-box housing; 101-driving tooth; 102-executing tooth; 104-first transmission shaft; 105-accommodating member; 107-second transmission shaft; 108-elastic member; 109-intermediate tooth; 110-motor; 111-arc-surface shock-absorbing structure; 119-first-order tooth; 129-second-order tooth; 2-rotating wheel; 200-first convex rib; 201-first clamping position; 202-second clamping position; 203-fixing member; 204-second convex rib; 205-second mounting position; 206-smooth surface structure; 3-adjusting part; 300-adjusting part housing; 301-first opening; 302-second opening; 303-adjusting slot; 304-adjusting rib; 320-executing key; 321-first executing arm; 322-second executing arm; 323-baffle; 4-rotating member. DETAILED DESCRIPTION

[0037] The utility model aims to provide a gear box, which is used to prevent the gears from getting stuck and overloaded.

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] like Figure 1 , Figure 2As shown, the utility model provides a gear box 1, including a box housing 100, a first transmission shaft 104, a receiving member 105, a second transmission shaft 107, an elastic member 108, an intermediate tooth 109 and a motor 110. A driving tooth 101 and an execution tooth 102 are provided in the box housing 100, and the execution tooth 102 is transmission-connected to the driving tooth 101; a first mounting position is also provided on the box housing 100; a first transmission shaft 104 is detachably connected to the execution tooth 102, and at least a portion of the first transmission shaft 104 extends out of the box housing 100; a second transmission shaft 107 is sleeved and matched with the first mounting position; an elastic member 108 is provided in the first mounting position, one end of the elastic member 108 is in abutment with the second transmission shaft 107, and the other end is in abutment with the box housing 100; an intermediate tooth 109 is connected to the second transmission shaft 107, and the execution tooth 102 is transmission-connected to the driving tooth 101 via the intermediate tooth 109; a motor 110 is connected to the driving tooth 101; at least two arc-surface shock-absorbing structures 111 are also provided in the box housing 100, and the two arc-surface shock-absorbing structures 111 clamp the motor 110 from opposite positions to fix the motor 110.

[0040] Among them, the intermediate teeth 109 can be divided into first-order teeth 119 and second-order teeth 129. The gear radius of the first-order teeth 119 is larger than the gear radius of the second-order teeth 129. The first-order teeth 119 are meshed with the driving teeth 101, and the second-order teeth 129 are meshed with the execution teeth 102. The first-order teeth 119 and the second-order teeth 129 are fixedly connected and rotate synchronously, thereby realizing the transmission connection between the driving teeth 101 and the execution teeth 102.

[0041] The motor 110 drives the driving teeth 101 to rotate. Since the driving teeth 101 are meshed with the intermediate teeth 109, and the intermediate teeth 109 are meshed with the executing teeth 102, the power of the motor 110 can be transmitted to the executing teeth 102 through the intermediate teeth 109. The executing teeth 102 drive the first transmission shaft 104 to rotate. The elastic member 108 is arranged between the second transmission shaft 107 matched with the intermediate teeth 109 and the box shell 100, which can play a role in shock absorption and noise reduction for the overall transmission system. At the same time, it can also protect the intermediate teeth 109 when the driving teeth 101 are overloaded, so that the entire transmission system can work stably. The two arc-surface shock-absorbing structures 111 clamp the motor 110 and fit the surface of the motor 110, which can fix the position of the motor 110 well. When the transmission system is stuck or overloaded, it can cooperate with the elastic member 108 to effectively protect the driving teeth 101, the intermediate teeth 109 and the executing teeth 102, avoid component damage or displacement and deformation, thereby reducing the failure rate of the gear box.

[0042] like Figure 2 and Figure 4As shown, the gearbox provided by the utility model also includes: a receiving member 105 and a rotating wheel 2. The receiving member 105 is arranged on the box housing 100 and forms a receiving space with the box housing 100. The rotating wheel 2 is arranged in the receiving space, and the rotating wheel 2 is connected to the execution tooth 102 through the first transmission shaft 104.

[0043] Preferably, at least three raised fan blades are equidistantly provided on one side of the rotating wheel 2 close to the container 105, and the provision of the fan blades can better hit the external contents.

[0044] The execution gear 102 transmits kinetic energy to the rotating wheel 2 through the first transmission shaft 104 , thereby driving the rotating wheel 2 to rotate.

[0045] like Figure 3 , Figure 4 and Figure 5 As shown, the first transmission shaft 104 is provided with a plurality of first ribs 200 along the circumferential direction, and each first rib 200 extends axially along the first transmission shaft 104; the executive tooth 102 is provided with a first clamping position 201 that cooperates with the first transmission shaft 104 and the first rib 200; and the rotating wheel 2 is provided with a second clamping position 202 that cooperates with the first transmission shaft 104 and the first rib 200.

[0046] The first convex rib 200 cooperates with the first engaging position 201 and the second engaging position 202 respectively, so as to further limit the circumferential rotation of the first transmission shaft 104 relative to the execution gear 102 and the rotating wheel 2 during operation, thereby enhancing the transmission effect of the first transmission shaft 104 .

[0047] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7 , at least one second mounting position 205 is provided on the box housing 100; the gear box 1 also includes a fixing member 203, and at least one second rib 204 is provided on the fixing member 203; the first transmission shaft 104 is sleeved with the fixing member 203, and the fixing member 203 is snap-fitted with the second mounting position 205.

[0048] Preferably, at least two second convex ribs 204 are disposed on the fixing member 203, wherein the two second convex ribs 204 are disposed opposite to each other.

[0049] Specifically, in this embodiment, a fixing member 203 is respectively provided along both sides of the shaft of the executing tooth 102 , so as to further limit and fix the executing tooth 102 .

[0050] The fixing member 203 is used to limit the position of the first transmission shaft 104 in the housing 100, and to limit the axial and circumferential displacement of the first transmission shaft 104. At the same time, it can also abut against the actuator tooth 102 to limit the axial displacement of the actuator tooth 102 on the first transmission shaft 104. The second rib 204 can further limit the position of the fixing member 203 on the housing 100, and prevent the fixing member 203 from rotating in the circumferential direction, which affects the transmission efficiency.

[0051] Refer again Figure 5 A smooth surface structure 206 is also provided on the first transmission shaft 104 ; the smooth surface structure 206 is in contact with the fixing member 203 .

[0052] On the basis of strengthening the limiting of the first convex rib 200, it is ensured that the first transmission shaft 104 can smoothly rotate around the axis in the fixing member 203. The smooth surface can also further ensure the structural strength of the first transmission shaft 104 on the basis of strengthening the transmission of the first convex rib 200.

[0053] like Fig.10 As shown, the gear box 1 provided by the utility model also includes: an adjusting part 3, which is detachably connected to the box shell 100; the adjusting part 3 includes an adjusting part shell 300, and the adjusting part shell 300 is in abutment contact with the accommodating member 105; a first opening 301 is provided on the accommodating member 105; a second opening 302 is provided on the adjusting part shell 300; the first opening 301 and the second opening 302 are correspondingly arranged; the adjusting part 3 is also provided with a accommodating groove.

[0054] The adjusting part 3 facilitates the user to grab the gear box 1, and the adjusting part housing 300 further fixes the position of the receiving part 105 to prevent the receiving part 105 from falling out. The first opening 301 and the second opening 302 are used to allow the foreign contents in the receiving groove to pass through and fall into the receiving space.

[0055] like Figure 8 and Fig. 9 As shown, at least two adjustment slots 303 are provided on the receiving member 105 ; an adjustment rib 304 is provided on the box housing 100 , and the adjustment rib 304 is engaged with the adjustment slot 303 .

[0056] Preferably, a stop rib is further provided on the accommodation member to prevent the adjustment rib 304 from sliding out.

[0057] The user moves the container 105 to make the adjustment rib 304 move relatively between the adjustment grooves 303. At this time, the first opening 301 also moves relative to the second opening 302, and the overlapping area of ​​the first opening and the second opening changes, so that the size of the opening for the external contents to pass through is changed, thereby controlling the number of external contents falling into the storage space.

[0058] like Fig.10 and Fig.11As shown, the adjustment part 3 includes: an execution key 320, a first execution arm 321, a second execution arm 322 and a baffle 323, the first execution arm 321 is nested with the execution key 320; the second execution arm 322 is connected to the first execution arm 321 through a pin shaft; the baffle 323 is movably connected to the second execution arm 322; the baffle 323 at least partially blocks the second opening 302.

[0059] When the user presses the actuator, the actuator pushes the first actuator arm 321 , the first actuator arm 321 drives the second actuator arm 322 through the pin shaft, and the second actuator arm 322 pulls the baffle 323 to control the size of the baffle 323 covering the second opening 302 .

[0060] Refer again Fig.10 The baffle 323 is provided with a hollow structure through which the first transmission shaft 104 can pass.

[0061] The hollow structure allows the first transmission shaft 104 to pass through without affecting the movement of the baffle 323 , thereby facilitating the passage of external contents.

[0062] like Figure 2 and Fig.11 As shown, the gearbox 1 provided by the present invention further includes: a rotating member 4 , which is arranged at one end of the first transmission shaft 104 extending out of the box housing 100 , and the rotating member 4 abuts against the adjustment portion housing 300 .

[0063] The first transmission shaft 104 drives the rotating member 4 to rotate, and the rotating member 4 is used to stir the external contents near the second opening 302 to prevent the external contents from being blocked.

[0064] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. A gear box, characterized in that: include: A box housing, wherein a driving tooth and an execution tooth are arranged in the box housing, and the execution tooth and the driving tooth are in driving connection; The box housing is also provided with a first installation position; a first transmission shaft, detachably connected to the execution gear, wherein at least a portion of the first transmission shaft extends out of the box housing; A second transmission shaft is sleeve-fitted with the first mounting position; An elastic member is arranged in the first installation position, one end of the elastic member is in abutment contact with the second transmission shaft, and the other end of the elastic member is in abutment contact with the box housing; An intermediate tooth connected to the second transmission shaft, and the execution tooth is transmission-connected to the driving tooth via the intermediate tooth; A motor connected to the driving gear; At least two arc-surface shock-absorbing structures are also arranged in the box shell, and the at least two arc-surface shock-absorbing structures clamp the motor.

2. The gearbox according to claim 1, characterized in that: The gear box further comprises: a receiving member and a rotating wheel; The receiving member is arranged on the box shell and forms a receiving space with the box shell; The rotating wheel is arranged in the accommodating space, and the rotating wheel is transmission-connected to the execution gear through the first transmission shaft.

3. The gearbox according to claim 2, characterized in that: The first transmission shaft is provided with a plurality of first ribs along the circumferential direction, and each of the first ribs extends axially along the first transmission shaft; The execution tooth is provided with a first engaging position which cooperates with the first transmission shaft and the first convex rib; The rotating wheel is provided with a second clamping position matched with the first transmission shaft and the first convex rib.

4. The gearbox according to claim 3, characterized in that: At least one second installation position is provided on the box housing; The gear box further comprises a fixing member, and at least one second rib is provided on the fixing member; The first transmission shaft is sleeve-fitted with the fixing member, and the fixing member is snap-fitted with the second installation position.

5. The gearbox according to claim 4, characterized in that: A smooth surface structure is also provided on the first transmission shaft, and the smooth surface structure abuts against the fixing member.

6. The gearbox according to claim 5, characterized in that: The gear box further comprises an adjusting portion, which is detachably connected to the box housing; The adjusting part comprises an adjusting part housing, and the adjusting part housing abuts against the receiving member; The container is provided with a first opening; The adjusting portion housing is provided with a second opening; The first opening is arranged corresponding to the second opening; The adjusting portion is also provided with a receiving groove.

7. The gearbox according to claim 6, characterized in that: The receiving member is provided with at least two adjustment slots; An adjusting rib is provided on the box shell, and the adjusting rib is clamped with the adjusting groove.

8. The gearbox according to claim 7, characterized in that: The adjustment unit comprises: Execute key; A first execution arm, nested with the execution key; A second actuator arm, connected to the first actuator arm via a pin shaft; a baffle, clamped with the second actuator arm; The second actuator arm moves relative to the baffle; At least a portion of the baffle blocks the second opening.

9. The gearbox according to claim 8, characterized in that: The baffle is provided with a hollow structure through which the first transmission shaft can pass.

10. The gearbox according to any one of claims 6 to 9, characterized in that The gear box further comprises a rotating member, which is arranged at one end of the first transmission shaft extending out of the box housing, and the rotating member is in contact with the adjusting portion housing.

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