Gearbox

Abstract

The utility model discloses a gearbox. The gearbox comprises a box body, the box body is provided with a first transmission shaft, and a first walking shaft and a second walking shaft which are oppositely arranged left and right; the first transmission shaft is provided with a first output mechanism and a second output mechanism; the first output mechanism is in transmission connection with the first walking shaft, the second output mechanism is in transmission connection with the second walking shaft, the first transmission shaft comprises a cavity and a first locking hole, and the cavity is provided with a locking mechanism and a rolling body matched with the locking mechanism; the first output mechanism and the second output mechanism are provided with second locking holes, and the rolling bodies, the first locking holes and the second locking holes correspond in position. According to the gearbox, through the innovative design of the transmission shafts and the output mechanisms, the first transmission shaft can transmit power to the walking shaft at the same time or respectively through the first output mechanism and the second output mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical drive field especially relates to a gearbox. BACKGROUND

[0002] In modern mechanical transmission system, gearbox as the core power transmission device, is widely used in automobile, engineering machinery, agricultural machinery and other equipment. The traditional gearbox usually through multistage gear set, clutch, synchronizer and so on mechanism to realize the switching of different transmission ratio, and meet the power demand under different working conditions. However, the existing gearbox design still has some deficiencies in high -efficient transmission, flexible control and structure simplification etc. For example, the traditional gearbox often needs complex gear meshing and synchronization device, leading to the structure is more complex, the manufacturing and maintenance cost is higher, therefore how to develop a new type of gearbox becomes the problem that the technical personnel in the field urgently solves.

[0003] UTILITARIAN CONTENT

[0004] The utility model aims at providing a gearbox, through the innovative transmission shaft and output mechanism design, make first transmission shaft can pass through first output mechanism and second output mechanism simultaneously or respectively transmit power to walking axle. In order to realize the above-mentioned purpose, the specific technical scheme of the utility model of gearbox is as follows:

[0005] A gearbox, characterized by comprising a box body;

[0006] The box body is equipped with first transmission shaft, and first walking axle, second walking axle oppositely arranged;

[0007] The first transmission shaft is equipped with first output mechanism, second output mechanism, the first output mechanism is transmissionally connected with first walking axle, and the second output mechanism is transmissionally connected with second walking axle;

[0008] The first transmission shaft includes cavity and first locking hole, and the cavity is equipped with locking mechanism and rolling body matched with the locking mechanism;

[0009] The first output mechanism, second output mechanism are equipped with second locking hole, and the position of rolling body, first locking hole, second locking hole corresponds;

[0010] The locking mechanism can move left and right in the cavity;

[0011] The rolling body moves when pushing the rolling body to move when the rolling body moves left and right or rotates in the cavity, and when the rolling body moves to the first locking hole, the rolling body is matched with the transmission gear set through the first locking hole, second locking hole.

[0012] Compared with the prior art, the utility model discloses the beneficial effect lies in: through being provided with first output mechanism and second output mechanism on first transmission shaft, make first transmission shaft can pass through first output mechanism and second output mechanism simultaneously or respectively transmit power to walking axle, pass through being provided with cavity and first locking hole on first transmission shaft, and being provided with locking mechanism and the rolling body that cooperates with locking mechanism in the cavity, be equipped with second locking hole on first output mechanism, second output mechanism, make locking mechanism move left and right in the cavity and push the rolling body and move to first locking hole place, and enter first locking hole interior, with first locking hole, second locking hole cooperation realizes the power transmission between transmission gear set and first transmission shaft or transmission gear set idling around first transmission shaft.

[0013] Further, the box is also provided with a second transmission shaft, the second transmission shaft is provided with a first intermediate gear and a second intermediate gear, the first output mechanism is directly connected in transmission or is connected in transmission with the first walking shaft through the first intermediate gear.

[0014] The second output mechanism is directly connected in transmission or is connected in transmission with the second walking shaft through the second intermediate gear.

[0015] The beneficial effects of the above further technical scheme are that: by providing the box with a second transmission shaft, and the second transmission shaft is also provided with a first intermediate gear and a second intermediate gear, the first output mechanism is directly connected in transmission with the first walking shaft or is connected in transmission with the first walking shaft through the first intermediate gear, so that the power on the first walking shaft can be directly transmitted through the first output mechanism, or the power on the first output mechanism can be transmitted to the first walking shaft through the first intermediate gear on the second transmission shaft; the second output mechanism is directly connected in transmission with the second walking shaft or is connected in transmission with the second walking shaft through the second intermediate gear, so that the power on the second walking shaft can be transmitted through the second output mechanism, or the power on the second output mechanism can be transmitted to the second walking shaft through the second intermediate gear on the second transmission shaft.

[0016] Further, the first output mechanism includes a first transmission gear and a second transmission gear.

[0017] The first walking shaft is provided with an eighth transmission gear and a ninth transmission gear.

[0018] The second transmission shaft is provided with a first intermediate gear.

[0019] The second transmission gear is connected in transmission with the first intermediate gear, the first intermediate gear is connected in transmission with the ninth transmission gear, and the eighth transmission gear is connected in transmission with the first transmission gear.

[0020] The beneficial effects of the further technical scheme are that: through the first output mechanism including the first transmission gear and the second transmission gear, the first walking shaft being provided with the eighth transmission gear and the ninth transmission gear, the second transmission shaft being provided with the first intermediate gear, the second transmission gear being in transmission connection with the first intermediate gear, the first intermediate gear being in transmission connection with the ninth transmission gear, and the eighth transmission gear being in transmission connection with the first transmission gear, the power on the first transmission shaft is transmitted to the second transmission gear in the first output mechanism, and then transmitted to the second transmission shaft through the transmission connection between the second transmission gear and the first intermediate gear, and then transmitted to the first walking shaft through the transmission connection between the first intermediate gear and the ninth transmission gear on the first walking shaft.

[0021] Further, the second output mechanism includes the third transmission gear and the fourth transmission gear;

[0022] The second walking shaft is provided with the tenth transmission gear and the eleventh transmission gear;

[0023] The second transmission shaft is provided with the second intermediate gear;

[0024] The third transmission gear is in transmission connection with the second intermediate gear, the second intermediate gear is in transmission connection with the tenth transmission gear, and the eleventh transmission gear is in transmission connection with the fourth transmission gear.

[0025] The beneficial effects of the further technical scheme are that: through the second output mechanism including the third transmission gear and the fourth transmission gear, the second walking shaft being provided with the tenth transmission gear and the eleventh transmission gear, the second transmission shaft being provided with the second intermediate gear, the third transmission gear being in transmission connection with the second intermediate gear, the second intermediate gear being in transmission connection with the tenth transmission gear, and the eleventh transmission gear being in transmission connection with the fourth transmission gear, the power on the first transmission shaft is transmitted to the third transmission gear in the second output mechanism, and then transmitted to the second transmission shaft through the transmission connection between the third transmission gear and the second intermediate gear, and then transmitted to the second walking shaft through the transmission connection between the second intermediate gear and the tenth transmission gear on the second walking shaft.

[0026] Further, the locking mechanism includes the first locking mechanism and the second locking mechanism;

[0027] The first locking mechanism and the second locking mechanism are shafts arranged in the cavity;

[0028] The first locking mechanism and the second locking mechanism are both provided with a protruding part and a lower recess, and the protruding part and the lower recess are matched with the rolling body;

[0029] The positions of the rolling body, the first locking hole and the second locking hole are overlapped;

[0030] The second locking hole has a smaller diameter than the first locking hole.

[0031] The beneficial effects of the further technical solutions are as follows: the locking mechanism includes the first locking mechanism and the second locking mechanism; the first locking mechanism and the second locking mechanism are both provided with a protruding part and a concave part, which cooperate with the rolling body; the second locking hole has a smaller diameter than the first locking hole; the protruding part and the concave part of the first locking mechanism and the second locking mechanism cooperate with the rolling body; the rolling body can be moved into the first locking hole and cooperate with the second locking hole through the pushing of the first locking mechanism and the second locking mechanism, thereby realizing power transmission of the transmission gear set.

[0032] Further, the locking mechanism includes the first locking mechanism and the second locking mechanism.

[0033] The cavity is provided with an elastic mechanism, one end of which cooperates with the first locking mechanism, and the other end cooperates with the second locking mechanism.

[0034] The beneficial effects of the further technical solutions are as follows: the locking mechanism includes the first locking mechanism and the second locking mechanism; the cavity is provided with an elastic mechanism, one end of which cooperates with the first locking mechanism, and the other end cooperates with the second locking mechanism; the first locking mechanism and the second locking mechanism in the cavity can cooperate with the elastic mechanism respectively; through the characteristics of the elastic mechanism, the first locking mechanism and the second locking mechanism can be pushed to one side by the elastic force when they move left and right.

[0035] Further, the box is provided with a third transmission shaft, the third transmission shaft is provided with a twelfth transmission gear and a thirteenth transmission gear.

[0036] The first transmission shaft is provided with a fifth transmission gear.

[0037] The thirteenth transmission gear and the fifth transmission gear are in transmission connection.

[0038] The beneficial effects of the further technical solutions are as follows: the box is provided with a third transmission shaft, the third transmission shaft is provided with a twelfth transmission gear and a thirteenth transmission gear; the first transmission shaft is provided with a fifth transmission gear; the thirteenth transmission gear and the fifth transmission gear are in transmission connection; the power on the third transmission shaft is transmitted to the first transmission shaft through the meshing transmission of the thirteenth transmission gear and the fifth transmission gear on the first transmission shaft, wherein the twelfth transmission gear on the third transmission shaft is used for meshing transmission with the previous stage transmission gear.

[0039] Further, the box is provided with a control mechanism.

[0040] The control mechanism is provided with a first control mechanism and a second control mechanism.

[0041] The beneficial effects of the further technical solutions are that the box is provided with a control mechanism; the control mechanism is provided with a first control mechanism and a second control mechanism, so that the operator can control the action of the locking mechanism through the control mechanism; the action of the first locking mechanism is controlled through the first control mechanism, and the action of the second locking mechanism is controlled through the second control mechanism.

[0042] Further, the first control mechanism is provided with a first control plate and a second control plate, and the second control plate is fixedly connected with the box;

[0043] The first control plate and the second control plate are rotationally connected;

[0044] The first control plate is provided with a first control rod, the first control rod is provided with a third control plate, the third control plate is provided with a first rotating column, and the first rotating column is rotationally connected with the box;

[0045] The first rotating column is provided with a first pushing mechanism, and the first pushing mechanism cooperates with the first locking mechanism.

[0046] The beneficial effects of the further technical solutions are that the first control mechanism is provided with a first control plate and a second control plate, the second control plate is fixedly connected with the box, the first control plate and the second control plate are rotationally connected, the first control plate is provided with a first control rod, the first control rod is provided with a third control plate, the third control plate is provided with a first rotating column, the first rotating column is rotationally connected with the box, the first rotating column is provided with a first pushing mechanism, and the first pushing mechanism cooperates with the first locking mechanism, so that the first control mechanism controls the first control plate, then rotates through the second control plate, drives the first control rod to act, at the same time drives the third control plate and the first rotating column to power, and finally drives the first pushing mechanism to act to push the first locking mechanism, thereby realizing the control of the first locking mechanism.

[0047] Further, the second control mechanism is provided with a fourth control plate and a fifth control plate, and the fifth control plate is fixedly connected with the box;

[0048] The fourth control plate and the fifth control plate are rotationally connected;

[0049] The fourth control plate is provided with a second control rod, the second control rod is provided with a sixth control plate, the sixth control plate is provided with a second rotating column, and the second rotating column is rotationally connected with the box;

[0050] The second rotating column is provided with a second pushing mechanism, and the second pushing mechanism cooperates with the second locking mechanism.

[0051] The beneficial effects of the further technical scheme are that: the second control mechanism is provided with a fourth control plate and a fifth control plate, the fifth control plate is fixedly connected with the box body, the fourth control plate is rotationally connected with the fifth control plate, the fourth control plate is provided with a second control rod, the second control rod is provided with a sixth control plate, the sixth control plate is provided with a second rotating column, the second rotating column is rotationally connected with the box body, the second rotating column is provided with a second pushing mechanism, and the second pushing mechanism is matched with the second locking mechanism, so that the second control mechanism controls the fourth control plate to rotate on the fifth control plate, drives the second control rod and the sixth control plate, drives the sixth control plate to drive the second rotating column to act, and finally transmits to the second pushing mechanism, and then the second pushing mechanism drives the second locking mechanism to act, so that the control of the second locking mechanism is realized. BRIEF DESCRIPTION OF DRAWINGS

[0052] Figure 1 It is an overall structure internal schematic view of the utility model;

[0053] Figure 2 It is an overall structure schematic view of the utility model;

[0054] Figure 3 It is a transmission system front view of the utility model;

[0055] Figure 4 It is a transmission system rear view of the utility model;

[0056] Figure 5 It is a first transmission shaft sectional view of the utility model.

[0057] 1, box body;3, first transmission shaft;6, second transmission shaft;8, third transmission shaft;21, first control mechanism;22, second control mechanism;31, cavity;32, first locking hole;33, elastic mechanism;34, fifth transmission gear;41, first locking mechanism;42, second locking mechanism;43, rolling body;45, protruding portion;46, lower concave portion;51, first transmission gear;52, second transmission gear;53, third transmission gear;54, fourth transmission gear;55, second locking hole;61, first intermediate gear;62, second intermediate gear;71, first walking shaft;72, second walking shaft;73, eighth transmission gear;74, ninth transmission gear;75, tenth transmission gear;76, eleventh transmission gear;81, twelfth transmission gear;82, thirteenth transmission gear;211, first control plate;212, second control plate;213, first control rod;214, third control plate;215, first rotating column;216, first pushing mechanism;221, fourth control plate;222, fifth control plate;223, second control rod;224, sixth control plate;225, second rotating column;226, second pushing mechanism. DETAILED DESCRIPTION

[0058] In order to better understand the purposes, structures and functions of the present application, the following further describes the gearbox in detail in combination with the drawings.

[0059] Example 1

[0060] As Figures 1-5 shown, the gearbox of the present application comprises a box body 1, the box body 1 is internally provided with a first transmission shaft 3, a second transmission shaft 6, a third transmission shaft 8, and a first walking shaft 71 and a second walking shaft 72 arranged in parallel left and right. The first transmission shaft 3 is a core power transmission component, which is internally provided with a cavity 31 and a first locking hole 32, the cavity 31 is configured with a locking mechanism (including a first locking mechanism 41 and a second locking mechanism 42) and a rolling body 43; the two ends of the first transmission shaft 3 are respectively connected with a first output mechanism and a second output mechanism, the first output mechanism comprises a first transmission gear 51 and a second transmission gear 52, and the second output mechanism comprises a third transmission gear 53 and a fourth transmission gear 54. The first walking shaft 71 is provided with an eighth transmission gear 73 and a ninth transmission gear 74, the second walking shaft 72 is provided with a tenth transmission gear 75 and an eleventh transmission gear 76, the first transmission shaft 3 and the second transmission shaft 6 are connected through a first intermediate gear 61 and a second intermediate gear 62 to form a power transmission path, and the third transmission shaft 8 is connected with an external transmission system through a twelfth transmission gear 81 and a thirteenth transmission gear 82.

[0061] The first output mechanism and the second output mechanism in the embodiment can realize the following different actions through the cooperation of the first locking mechanism 41, the second locking mechanism 42 and the rolling body 43.

[0062] When the rolling body 43 in the second transmission gear 52 and the third transmission gear 53 is located in the middle part of the cavity 31, the second transmission gear 52 and the third transmission gear 53 can rotate around the first transmission shaft 3 (the second locking hole 55 is not matched with the rolling body 43), at this time, the power on the first transmission shaft 3 is directly transmitted to the first walking shaft 71 and the second walking shaft 72, so that the first walking shaft 71 and the second walking shaft 72 advance or retreat at the same time.

[0063] When the first control mechanism 21 is operated to push the first locking mechanism 41 to move or the second control mechanism 22 is operated to push the second locking mechanism 42 to move, the rolling body 43 is pushed into the first locking hole 32 and the second locking hole 55 (the second locking hole 55 is smaller in diameter, which enhances the self-locking stability) under the action of the locking mechanism, at this time, the power of the first transmission shaft 3 is transmitted to the second transmission shaft 6 through the second transmission gear 52 or the third transmission gear 53, and then transmitted to the first walking shaft 71 or the second walking shaft 72 through the first intermediate gear 61 or the second intermediate gear 62. The first locking mechanism 41 and the second locking mechanism 42 are both provided with a protruding part 45 and a lower recessed part 46, which form double locking with the rolling body 43.

[0064] When the rolling body 43 is pushed into the first locking hole 32 by the locking mechanism, the cooperation of the protruding part 45 and the lower recessed part 46 prevents the rolling body 43 from coming out, at this time, the rolling body 43, the first locking hole 32 and the second locking hole 55 cooperate and the positions of the three are overlapped.

[0065] The gearbox of the embodiment includes a box body 1, the box body 1 is provided with a first transmission shaft 3, and left and right oppositely arranged first walking shafts 71 and second walking shafts 72; the first transmission shaft 3 is provided with first output mechanisms and second output mechanisms, the first output mechanisms are in transmission connection with the first walking shafts 71, and the second output mechanisms are in transmission connection with the second walking shafts 72. The first transmission shaft 3 includes a cavity 31 and a first locking hole 32, the cavity 31 is provided with a locking mechanism (including a first locking mechanism 41 and a second locking mechanism 42) and a rolling body 43 cooperating with the locking mechanism; the first output mechanisms and the second output mechanisms are provided with second locking holes 55, and the positions of the rolling body 43, the first locking hole 32 and the second locking hole 55 correspond. The locking mechanism can move left and right in the cavity 31, the rolling body 43 pushes the rolling body 43 to move when moving left and right in the cavity 31, and when the rolling body 43 moves to the first locking hole 32, the rolling body 43 cooperates with the transmission gear set through the first locking hole 32 and the second locking hole 55 to realize power transmission.

[0066] The rolling body 43 in the embodiment is preferably a ball, and other rolling bodies 43 can also be selected to cooperate with the first locking mechanism 41 and the second locking mechanism 42; the locking mechanism in the embodiment is a shaft that can rotate and move in and out of the cavity 31; the locking mechanism is provided with a protruding part 45 and a lower recessed part 46, wherein the protruding parts 45 on the first locking mechanism 41 and the second locking mechanism 42 each include three annular protrusions, the middle part of the three annular protrusions is the lower recessed part 46, and the lower recessed part 46 includes two annular grooves; the locking mechanism controls the movement of the rolling body 43 through the annular protrusions and the annular grooves, so as to move the rolling body 43 to different positions to realize the transmission of different gears.

[0067] The box 1 of the embodiment further has a second transmission shaft 6, which is provided with a first intermediate gear 61 and a second intermediate gear 62. The first output mechanism is directly connected in transmission with the first walking shaft 71 or is connected in transmission with the first walking shaft 71 through the first intermediate gear 61; the second output mechanism is directly connected in transmission with the second walking shaft 72 or is connected in transmission with the second walking shaft 72 through the second intermediate gear 62. The first transmission shaft 3, the second transmission shaft 6, the first walking shaft 71 and the second walking shaft 72 are arranged in parallel; so that the power on the first walking shaft 71 can be directly transmitted through the first output mechanism, or the power on the first output mechanism can be transmitted to the first walking shaft 71 through the first intermediate gear 61 on the second transmission shaft 6; the power on the second walking shaft 72 can be transmitted through the second output mechanism, or the power on the second output mechanism can be transmitted to the second walking shaft 72 through the second intermediate gear 62 on the second transmission shaft 6.

[0068] The first output mechanism of the embodiment comprises a first transmission gear 51 and a second transmission gear 52; the first walking shaft 71 is provided with an eighth transmission gear 73 and a ninth transmission gear 74; the second transmission shaft 6 is provided with a first intermediate gear 61. The second transmission gear 52 is connected in transmission with the first intermediate gear 61, the first intermediate gear 61 is connected in transmission with the ninth transmission gear 74, the eighth transmission gear 73 is connected in transmission with the first transmission gear 51, forming a three-stage transmission structure; so that the first transmission shaft 3 transmits power to the second transmission gear 52 in the first output mechanism, and transmits power to the second transmission shaft 6 through the transmission connection between the second transmission gear 52 and the first intermediate gear 61, and then transmits power to the first walking shaft 71 through the transmission connection between the first intermediate gear 61 and the ninth transmission gear 74 on the first walking shaft 71, so as to transmit power on the second transmission shaft 6 to the first walking shaft 71; at this time, the transmission mode is two-stage transmission, and the power on the first transmission shaft 3 is transmitted to the first walking shaft 71 or the second walking shaft 72 through the second transmission shaft 6.

[0069] The second output mechanism of the embodiment comprises a third transmission gear 53 and a fourth transmission gear 54; the second walking shaft 72 is provided with a tenth transmission gear 75 and an eleventh transmission gear 76; the second transmission shaft 6 is provided with a second intermediate gear 62. The third transmission gear 53 is connected in transmission with the second intermediate gear 62, the second intermediate gear 62 is connected in transmission with the tenth transmission gear 75, and the eleventh transmission gear 76 is connected in transmission with the fourth transmission gear 54, forming an independent power transmission channel; so that the power on the first transmission shaft 3 is transmitted to the third transmission gear 53 in the second output mechanism, and the power is transmitted to the second transmission shaft 6 through the transmission connection between the third transmission gear 53 and the second intermediate gear 62, and then the power is transmitted to the second walking shaft 72 through the transmission connection between the second intermediate gear 62 and the tenth transmission gear 75 on the second walking shaft 72, so that the power on the second transmission shaft 6 is transmitted to the second walking shaft 72.

[0070] The locking mechanism of the embodiment comprises a first locking mechanism 41 and a second locking mechanism 42, each provided with a protruding part 45 and a lower recessed part 46 cooperating with the rolling body 43. The second locking hole 55 has a smaller diameter than the first locking hole 32. When the rolling body 43 moves to the first locking hole 32, the protruding part 45 and the lower recessed part 46 form a self-locking structure to prevent the transmission gear set from idling, so that the protruding part 45 and the lower recessed part 46 in the first locking mechanism 41 and the second locking mechanism 42 cooperate with the rolling body 43, and through the pushing of the first locking mechanism 41 and the second locking mechanism 42, the rolling body 43 can be correspondingly in the first locking hole 32 and cooperate with the second locking hole 55 to realize power transmission of the transmission gear set.

[0071] The cavity 31 of the embodiment is provided with an elastic mechanism 33, one end of which cooperates with the first locking mechanism 41 and the other end of which cooperates with the second locking mechanism 42. The compression stroke of the elastic mechanism 33 is 5-8 mm. When the locking mechanism is pushed by external force, the elastic mechanism 33 generates a reverse force to realize automatic resetting of the locking mechanism.

[0072] The box body 1 of the embodiment is provided with a third transmission shaft 8 provided with a twelfth transmission gear 81 and a thirteenth transmission gear 82. The first transmission shaft 3 is provided with a fifth transmission gear 34, and the thirteenth transmission gear 82 is engaged with the fifth transmission gear 34 for transmission, so that the power on the third transmission shaft 8 is transmitted to the first transmission shaft 3 through the engagement transmission of the thirteenth transmission gear 82 and the fifth transmission gear 34 on the first transmission shaft 3, wherein the twelfth transmission gear 81 on the third transmission shaft 8 is used for engagement transmission with the upper level transmission gear.

[0073] The box body 1 of the embodiment is provided with a control mechanism, which comprises a first control mechanism 21 and a second control mechanism 22. The first control mechanism 21 is provided with a first control plate 211 and a second control plate 212, and the second control plate 212 is fixedly connected with the box body 1. The first control plate 211 drives the third control plate 214 to rotate through the first control rod 213, so that the first rotating column 215 drives the first pushing mechanism 216 to act.

[0074] The first control plate 211 and the second control plate 212 in the first control mechanism 21 are rotationally connected through a pin shaft, and the rotation angle range is 0-90°. The first pushing mechanism 216 comprises a push rod and a return spring, and the maximum pushing stroke is 12 mm, which is accurately matched with the first locking mechanism 41 to push the first locking mechanism 41 to act.

[0075] The fourth control plate 221 and the fifth control plate 222 of the second control mechanism 22 of the embodiment are connected through a pin shaft, the second pushing mechanism 226 comprises a pushing rod and a return spring, and the maximum pushing stroke is 12mm. The sixth control plate 225 drives the second pushing mechanism 226 through the second control rod 223 and the second rotating column 224, and forms precise cooperation with the second locking mechanism 42, so that the second locking mechanism 42 is pushed to move.

[0076] The working principle and process of the first output mechanism of the embodiment are as follows:

[0077] When the first walking shaft 71 is located at the inside of the steering, and the second walking shaft 72 is located at the outside of the steering, the operator first controls the first locking mechanism 41 through the first control mechanism 21 in the control mechanism. The operator drives the first control plate 211 to rotate around the second control plate 212, so as to drive the first control rod 213 to move, and then drives the third control plate 214 to move through the first control rod 213, and drives the first rotating column 215 to rotate through the third control plate 214, and drives the first pushing mechanism 216 to push. The first pushing mechanism 216 contacts the first locking mechanism 41 through the movement, and pushes the first locking mechanism 41 to move to the inside against the elastic force of the elastic mechanism 33.

[0078] The rolling body 43 originally located in the locking hole of the first transmission gear 51 in the first output mechanism gradually flows out of the locking hole to the lower recess 46, that is, the annular groove, as the first locking mechanism 41 continues to push inward. At this time, the rolling body 43 in the first transmission gear 51 and the second transmission gear 52 is located in the annular groove, and is not matched with the locking hole, which makes the transmission mode of the first transmission gear 51, the second transmission gear 52 and the first transmission shaft 3 all idle, and the fourth transmission gear 54 in the second output mechanism is matched and transmission connected with the first transmission shaft 3 through the rolling body 43 and the locking hole, which makes the equipment equipped with the gearbox idle when steering, and the first walking shaft 71 does not receive power, and the second walking shaft 72 is transmission connected with the eleventh transmission gear 76 through the fourth transmission gear 54, and rotates forward to realize the steering action that one walking shaft does not move and the other walking shaft moves forward.

[0079] When the first locking mechanism 41 is pushed by the first pushing mechanism 216 to move to the inside, the rolling body 43 at the second transmission gear 52 is pushed by the intermediate protruding part 45 to move to the locking hole, and finally the protruding part 45 pushes the rolling body 43 into the locking hole, so that the second transmission gear 52 is in transmission connection with the first transmission shaft 3, and the second transmission gear 52 is in transmission connection with the first intermediate gear 61, and the first intermediate gear 61 is in transmission connection with the ninth transmission gear 74, so that the steering of the first walking shaft 71 is opposite to the steering of the second walking shaft 72, which makes the equipment provided with the transmission box move forward when steering, and the walking shaft on the outside of the steering moves forward, and the walking shaft on the inside of the steering moves backward, so as to realize the reduction of the turning radius of the equipment and reduce the steering time.

[0080] The working principle and process of the second output mechanism in the embodiment are as follows:

[0081] When the second walking shaft 72 is on the inside of the steering and the first walking shaft 71 is on the outside of the steering, the operator controls the second locking mechanism 42 through the second control mechanism 22 in the control mechanism, wherein the operator rotates the fourth control plate 221 to drive the second control rod 223 to move, and then drives the sixth control plate 224 to move through the second control rod 223, drives the second rotating column 225 to rotate, and drives the second pushing mechanism 226 to push, so that the second pushing mechanism 226 contacts the second locking mechanism 42 and pushes the second locking mechanism 42 to move to the inside against the elastic force of the elastic mechanism 33.

[0082] The rolling body 43 originally in the locking hole of the fourth transmission gear 54 in the second output mechanism is gradually pushed out of the locking hole to the lower recess 46, that is, the annular groove, as the second locking mechanism 42 continues to push to the inside, and at this time, the rolling body 43 in the third transmission gear 53 and the fourth transmission gear 54 is in the annular groove, and is not matched with the locking hole, which makes the transmission mode of the third transmission gear 53, the fourth transmission gear 54 and the first transmission shaft 3 be idle, and the first transmission gear 51 in the first output mechanism is in transmission connection with the first transmission shaft 3 through the rolling body 43 and the locking hole, which makes the equipment provided with the transmission box idle when steering, the second walking shaft 72 does not receive power, and the first walking shaft 71 is in transmission connection with the eighth transmission gear 73 through the first transmission gear 51, and moves forward to realize the steering action that one walking shaft is stationary and the other walking shaft moves forward.

[0083] When the second locking mechanism 42 is continuously moved to the inside by the second pushing mechanism 226, the rolling body 43 at the third transmission gear 53 is moved to the locking hole by the pushing force of the intermediate protruding part 45, and finally the protruding part 45 pushes the rolling body 43 into the locking hole, so that the third transmission gear 53 is in transmission connection with the first transmission shaft 3, and the third transmission gear 53 is in transmission connection with the second intermediate gear 62, and the second intermediate gear 62 is in transmission connection with the tenth transmission gear 75, so that the steering of the second walking shaft 72 is opposite to the steering of the first walking shaft 71, which makes the equipment provided with the gearbox be able to rotate forward when steering, and the walking shaft on the outside of the steering is rotated forward, and the walking shaft on the inside of the steering is rotated backward, so that the turning radius of the equipment is reduced, and the turning time is also reduced.

[0084] The utility model discloses a first transmission shaft 3 is provided with first output mechanism and second output mechanism, so that the first transmission shaft 3 can transmit power to the first walking shaft 71 and the second walking shaft 72 simultaneously or separately through the first output mechanism and the second output mechanism, and the first transmission shaft 3 is provided with a cavity 31 and a first locking hole 32, and the locking mechanism and the rolling body 43 matched with the locking mechanism are arranged in the cavity 31, and the first output mechanism and the second output mechanism are provided with a second locking hole 55, so that the locking mechanism moves left and right in the cavity 31 and pushes the rolling body 43 to move to the first locking hole 32 and enter the inside of the first locking hole 32, and the first locking hole 32 and the second locking hole 55 are matched to realize the power transmission between the transmission gear set and the first transmission shaft 3 or the idling of the transmission gear set around the first transmission shaft 3.

[0085] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed here, and all embodiments falling within the scope of the claims of the application belong to the scope protected by the utility model.

Claims

1. A gearbox, characterized in that The box comprises a box body; The box body is provided with a first transmission shaft, and first and second walking shafts arranged oppositely left and right; The first transmission shaft is provided with first and second output mechanisms, the first output mechanism is in transmission connection with the first walking shaft, and the second output mechanism is in transmission connection with the second walking shaft; The first transmission shaft comprises a cavity and a first locking hole, the cavity is provided with a locking mechanism and a rolling body matched with the locking mechanism; The first and second output mechanisms are provided with second locking holes, and the positions of the rolling body, the first locking hole and the second locking hole correspond to each other; The locking mechanism can move left and right or rotate in the cavity; When the rolling body moves left and right or rotates in the cavity, the rolling body is pushed to move, when the rolling body moves to the first locking hole, the rolling body is matched with the transmission gear set through the first and second locking holes.

2. The gearbox according to claim 1, characterized in that The box is further provided with a second transmission shaft, the second transmission shaft is provided with first and second intermediate gears, the first output mechanism is directly in transmission connection with the first walking shaft or is in transmission connection with the first walking shaft through the first intermediate gear; The second output mechanism is directly in transmission connection with the second walking shaft or is in transmission connection with the second walking shaft through the second intermediate gear.

3. The gearbox of claim 2, wherein, The first output mechanism comprises first and second transmission gears; The first walking shaft is provided with eighth and ninth transmission gears; The second transmission shaft is provided with a first intermediate gear; The second transmission gear is in transmission connection with the first intermediate gear, the first intermediate gear is in transmission connection with the ninth transmission gear, and the eighth transmission gear is in transmission connection with the first transmission gear.

4. The gearbox of claim 2, wherein, The second output mechanism comprises third and fourth transmission gears; The second walking shaft is provided with tenth and eleventh transmission gears; The second transmission shaft is provided with a second intermediate gear; The third transmission gear is in transmission connection with the second intermediate gear, the second intermediate gear is in transmission connection with the tenth transmission gear, and the eleventh transmission gear is in transmission connection with the fourth transmission gear; The first and second transmission shafts and the first and second walking shafts are arranged in parallel.

5. The gearbox of claim 1, wherein, The locking mechanism comprises first and second locking mechanisms; The first and second locking mechanisms are shafts arranged in the cavity; The first and second locking mechanisms are provided with protruding portions and concave portions matched with the rolling body; The positions of the rolling body, the first locking hole and the second locking hole overlap; The diameter of the second locking hole is smaller than that of the first locking hole.

6. The gearbox of claim 1, wherein, The locking mechanism comprises first and second locking mechanisms; The cavity is provided with an elastic mechanism, one end of the elastic mechanism is matched with the first locking mechanism, and the other end is matched with the second locking mechanism.

7. The gearbox of claim 1, wherein, The box is provided with a third transmission shaft, the third transmission shaft is provided with twelfth and thirteenth transmission gears; The first transmission shaft is provided with a fifth transmission gear; The thirteenth transmission gear is in transmission connection with the fifth transmission gear.

8. The gearbox of claim 1, wherein, The box is provided with a control mechanism; The control mechanism comprises first and second control mechanisms.

9. The gearbox of claim 8, wherein, The first control mechanism is provided with a first control plate and a second control plate, and the second control plate is fixedly connected with the box body; The first control plate and the second control plate are rotationally connected; The first control plate is provided with a first control rod, the first control rod is provided with a third control plate, the third control plate is provided with a first rotating column, and the first rotating column is rotationally connected with the box body; The first rotating column is provided with a first pushing mechanism, and the first pushing mechanism cooperates with a first locking mechanism.

10. The gearbox of claim 8, wherein, The second control mechanism is provided with a fourth control plate and a fifth control plate, and the fifth control plate is fixedly connected with the box body; The fourth control plate and the fifth control plate are rotationally connected; The fourth control plate is provided with a second control rod, the second control rod is provided with a sixth control plate, the sixth control plate is provided with a second rotating column, and the second rotating column is rotationally connected with the box body; The second rotating column is provided with a second pushing mechanism, and the second pushing mechanism cooperates with a second locking mechanism.

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