Trailer with transmission mechanism

Abstract

The embodiment of the utility model provides a trailer with a transmission mechanism, and relates to the technical field of agricultural machinery. The trailer with the transmission mechanism comprises a trailer body, a transmission shaft, a speed change mechanism and a transfer mechanism. The trailer body is provided with a rear axle which is provided with an input shaft for driving the wheels to rotate. The speed change mechanism and the transfer mechanism are both arranged on the trailer body, the speed change mechanism is provided with a first input shaft and a first output shaft, and the transfer mechanism is provided with a second input shaft and a second output shaft. One end of the transmission shaft is connected with the first input shaft, and the other end is connected with a power source. The first output shaft is in transmission connection with the second input shaft, and the second output shaft is in transmission connection with the input shaft of the rear axle. Power can be provided for the trailer, so that the escape capability of the trailer under some working conditions can be improved, and the problem of vehicle trapping is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, specifically, relate to a drag with transmission mechanism. BACKGROUND

[0002] The power driving mode of the tractor is generally front drive at present, and the tractor head is used to drag the drag to move.

[0003] The wheels of the drag of the existing tractor rotate in the mode of driven wheels, and the drag is prone to poor escape ability, vehicle sinking and other problems when walking on heavy load or poor road surface. UTILITY MODEL CONTENTS

[0004] The utility model discloses a drag with transmission mechanism, which can provide power to the drag, thereby improving the escape ability of the drag under some working conditions and solving the problem of vehicle sinking.

[0005] The embodiment of the utility model can be realized as follows:

[0006] The utility model provides a drag with transmission mechanism, which comprises a drag body, a transmission shaft, a speed change mechanism and a transfer mechanism.

[0007] The drag body is provided with a rear axle, and the rear axle is provided with an input shaft for driving the wheels to rotate.

[0008] The speed change mechanism and the transfer mechanism are arranged in the drag body, the speed change mechanism is provided with a first input shaft and a first output shaft, and the transfer mechanism is provided with a second input shaft and a second output shaft.

[0009] One end of the transmission shaft is connected with the first input shaft, and the other end is used for being connected with a power source.

[0010] The first output shaft is in transmission connection with the second input shaft, and the second output shaft is in transmission connection with the input shaft of the rear axle.

[0011] In the optional embodiment, the transmission shaft is a wide-angle transmission shaft.

[0012] The wide-angle transmission shaft comprises a first connecting shaft and two universal joints arranged at both ends of the first connecting shaft.

[0013] One of the two universal joints is connected with the first input shaft, and the other is used for being connected with a power source.

[0014] In the optional embodiment, the speed change mechanism comprises a shell, a first gear and a second gear.

[0015] The first gear and the second gear are rotatably arranged in the shell and are in mesh with each other.

[0016] The first input shaft is connected to the first gear and extends out of the housing.

[0017] The first output shaft is connected to the second gear and extends out of the housing.

[0018] In an optional embodiment, the first output shaft and the second input shaft are connected by a second connecting shaft.

[0019] In an optional embodiment, the power distribution mechanism comprises a housing, an input transmission wheel, an intermediate transmission wheel and an output transmission wheel.

[0020] The input transmission wheel, the intermediate transmission wheel and the output transmission wheel are coaxial and are arranged in the housing in sequence.

[0021] The input transmission wheel is provided with first engagement teeth on a side close to the intermediate transmission wheel, and the intermediate transmission wheel is provided with second engagement teeth on a side close to the input transmission wheel.

[0022] The intermediate transmission wheel is provided with third engagement teeth on a side close to the output transmission wheel, and the output transmission wheel is provided with fourth engagement teeth on a side close to the intermediate transmission wheel.

[0023] The second input shaft is connected to the input transmission wheel, and the second output shaft is connected to the output transmission wheel.

[0024] When the input transmission wheel is driven to rotate, the input transmission wheel can drive the intermediate transmission wheel to move towards the output transmission wheel, so that the third engagement teeth and the fourth engagement teeth are engaged while the first engagement teeth and the second engagement teeth are engaged.

[0025] After the input transmission wheel stops rotating, the intermediate transmission wheel can move towards the input transmission wheel, so that the third engagement teeth and the fourth engagement teeth are disengaged.

[0026] In an optional embodiment, the first engagement teeth comprise a first tooth portion and a second tooth portion, the first tooth portion is arranged on an end face of the input transmission wheel close to the intermediate transmission wheel, the first tooth portion is provided with a first guide slope, and the second tooth portion is arranged on an end of the first tooth portion.

[0027] When the input transmission wheel is driven to rotate, the first guide slope can drive the intermediate transmission wheel to move towards the output transmission wheel in cooperation with the second engagement teeth, so that the third engagement teeth and the fourth engagement teeth are engaged, and the second tooth portion and the second engagement teeth are engaged.

[0028] In an optional embodiment, the second engaging tooth comprises a third tooth portion and a fourth tooth portion, the third tooth portion is arranged on the end face of the input transmission wheel close to the intermediate transmission wheel, the third tooth portion is provided with a second guide slope, and the fourth tooth portion is arranged on the end of the third tooth portion;

[0029] When the input transmission wheel is driven to rotate, the second guide slope can cooperate with the first engaging tooth to drive the intermediate transmission wheel to move towards the output transmission wheel, so that the third engaging tooth is engaged with the fourth engaging tooth, and the fourth tooth portion is engaged with the first engaging tooth.

[0030] In an optional embodiment, the first engaging tooth comprises a first tooth portion and a second tooth portion, the first tooth portion is arranged on the end face of the input transmission wheel close to the intermediate transmission wheel, the first tooth portion is provided with a first guide slope, and the second tooth portion is arranged on the end of the first tooth portion;

[0031] The second engaging tooth comprises a third tooth portion and a fourth tooth portion, the third tooth portion is arranged on the end face of the input transmission wheel close to the intermediate transmission wheel, the third tooth portion is provided with a second guide slope, and the fourth tooth portion is arranged on the end of the third tooth portion;

[0032] The second tooth portion and the fourth tooth portion are both provided with abutting faces on the circumferential sides thereof, the first tooth portion is provided with the first guide slope on the circumferential sides thereof, and the third tooth portion is provided with the second guide slope on the circumferential sides thereof;

[0033] When the input transmission wheel is driven to rotate, the first guide slope can cooperate with the guide slope to drive the intermediate transmission wheel to move towards the output transmission wheel, so that the third engaging tooth is engaged with the fourth engaging tooth, and the second tooth portion is engaged with the fourth tooth portion.

[0034] In an optional embodiment, the power distribution mechanism further comprises a guide shaft and a spring;

[0035] The guide shaft is arranged between the output transmission wheel and the input transmission wheel, and is coaxially arranged with the input transmission wheel and the output transmission wheel, and is connected with each other;

[0036] The intermediate transmission wheel is provided with a through hole, the guide shaft is arranged in the through hole, and the intermediate transmission wheel can move along the guide shaft towards the input transmission wheel or the output transmission wheel;

[0037] The spring sleeve is arranged on the guide shaft and between the intermediate transmission wheel and the output transmission wheel, so as to provide elastic force to the intermediate transmission wheel towards the input transmission wheel, and drive the intermediate transmission wheel to move towards the input transmission wheel after the input transmission wheel stops rotating.

[0038] In an optional embodiment, the towed implement with transmission mechanism further comprises a power output lifting device assembly, the power output lifting device assembly comprising a box, a gear set and an output shaft;

[0039] The gear set is rotatably arranged on the box, and the output shaft is arranged on the box and in transmission connection with the gear set, one end of the output shaft extending out of the box and in transmission connection with the transmission shaft away from the first input shaft.

[0040] When the box is arranged on the gearbox of the tractor, the gear set is in meshing connection with the output gear of the gearbox, so as to drive the output shaft to rotate.

[0041] The towed implement with transmission mechanism provided by the embodiment of the utility model has the beneficial effects that:

[0042] The towed implement with transmission mechanism provided by the utility model is provided with a transmission shaft to connect the power source, and the transmission ratio of the towed implement corresponds to the transmission ratio of the vehicle head by setting the transmission mechanism to control the transmission ratio, so that the problem of pushing or dragging the vehicle head is avoided. The split transmission mechanism transmission shaft can disconnect the transmission route when the transmission shaft does not transmit power backward, so that the energy consumption is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0043] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0044] Figure 1 The structure schematic view of the towed implement with transmission mechanism provided by the embodiment;

[0045] Figure 2 The structure schematic view of the split transmission mechanism of the towed implement with transmission mechanism provided by the embodiment;

[0046] Figure 3 The structure schematic view of the input transmission wheel of the split transmission mechanism of the towed implement with transmission mechanism provided by the embodiment;

[0047] Figure 4The schematic structural view of the intermediate transmission wheel of the transfer mechanism of the towing bucket with a transmission mechanism is provided for the embodiment.

[0048] Icon: 100 - towing bucket with transmission mechanism; 110 - towing bucket body; 111 - rear axle; 113 - input shaft; 120 - transmission shaft; 121 - first connecting shaft; 123 - universal joint; 140 - transmission mechanism; 141 - first input shaft; 142 - first output shaft; 143 - housing; 144 - first gear; 145 - second gear; 146 - second connecting shaft; 150 - transfer mechanism; 151 - second input shaft; 152 - second output shaft; 153 - housing; 154 - input transmission wheel; 155 - intermediate transmission wheel; 156 - output transmission wheel; 157 - first meshing tooth; 158 - second meshing tooth; 159 - third meshing tooth; 161 - fourth meshing tooth; 162 - first tooth part; 163 - second tooth part; 164 - first guide inclined surface; 165 - third tooth part; 166 - fourth tooth part; 167 - second guide inclined surface; 168 - abutting surface; 169 - guide shaft; 171 - spring; 180 - power output lifting device; 181 - box body; 182 - gear set; 183 - output shaft. DETAILED DESCRIPTION

[0049] The wheels of the existing towing bucket of the tractor rotate in the manner of driven wheels, and the towing bucket is prone to problems such as poor escape ability and vehicle sinking when walking on heavy loads or poor road conditions.

[0050] In view of the above problems, the utility model provides a towing bucket with a transmission mechanism, which transmits power of a machine head to a rear axle of the towing bucket, thereby improving the problems of poor escape ability and easy sinking of the towing bucket.

[0051] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0052] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0053] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0054] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0055] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0056] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0057] The following describes in detail the overall structure, working principle, and technical effects of the trailer with a transmission mechanism provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0058] Please refer to Figures 1 to 4 This utility model provides a trailer 100 with a transmission mechanism, which can transmit the power of the tractor head to the rear axle 111 of the trailer, so as to realize the active rotation of the wheels of the rear axle 111 of the trailer, thereby improving the trailer's ability to get out of trouble and improving the problem of getting stuck.

[0059] In this embodiment, the trailer 100 with a transmission mechanism includes a trailer body 110, a drive shaft 120, a transmission mechanism 140, and a transfer mechanism 150. The trailer body 110 has a rear axle 111, which has an input shaft 113 for driving the wheels. The transmission mechanism 140 and the transfer mechanism 150 are both disposed on the trailer body 110. The transmission mechanism 140 has a first input shaft 141 and a first output shaft 142, and the transfer mechanism 150 has a second input shaft 151 and a second output shaft 152. One end of the drive shaft 120 is connected to the first input shaft 141, and the other end is used to connect to a power source. The first output shaft 142 is driveably connected to the second input shaft 151, and the second output shaft 152 is driveably connected to the input shaft 113 of the rear axle 111.

[0060] The towing bucket 100 with the transmission mechanism provided in the embodiment is connected with the power source through the transmission shaft 120, and the transmission ratio is controlled by the speed change mechanism 140, so that the transmission ratio of the towing bucket corresponds to the transmission ratio of the vehicle head, and the problem of pushing or dragging the towing bucket is avoided. The transmission shaft 120 can disconnect the transmission route when the transmission shaft 120 does not transmit power backward, which is more energy-saving.

[0061] In the embodiment, the transmission shaft 120 is a wide-angle transmission shaft 120. The wide-angle transmission shaft 120 includes a first connecting shaft 121 and two universal joints 123 arranged at both ends of the first connecting shaft 121. One of the two universal joints 123 is connected with the first input shaft 141, and the other is used to be connected with the power source.

[0062] In the embodiment, the transmission shaft 120 is set as a wide-angle transmission shaft 120, which facilitates better turning of the vehicle head with the towing bucket, and avoids interference and mutual influence.

[0063] Please refer to Figures 1 to 4 In the embodiment, the two universal joints 123 can be cross shaft universal joints 123. The first connecting shaft 121 can be a first connecting shaft 121 that can be extended and retracted, which is convenient for installation.

[0064] In the embodiment, the speed change mechanism 140 includes a housing 143, a first gear 144 and a second gear 145. The first gear 144 and the second gear 145 are rotatably arranged in the housing 143 and are in mesh with each other. The first input shaft 141 is connected to the first gear 144 and extends out of the housing 143. The first output shaft 142 is connected to the second gear 145 and extends out of the housing 143.

[0065] The speed change mechanism 140 of the embodiment can adjust the transmission ratio by setting the tooth number ratio of the first gear 144 and the second gear 145, so that the driving speed of the vehicle head and the form speed of the towing bucket are the same, thereby avoiding the problem of pushing or dragging.

[0066] Specifically, the tooth number ratio of the first gear 144 and the second gear 145 can be calculated according to parameters such as the wheel diameter of the vehicle head and the wheel diameter of the towing bucket.

[0067] In the embodiment, the first output shaft 142 and the second input shaft 151 are connected through the second connecting shaft 146.

[0068] In the embodiment, the first output shaft 142 and the second input shaft 151 are connected through the second connecting shaft 146, which is convenient for assembly.

[0069] Specifically, the second connecting shaft 146 can be a spline shaft, and the power transmission is achieved by the spline interfitting mode.

[0070] If the vehicle head travels with the trailer under good road conditions, light load of the trailer, etc., the power transmitted by the vehicle head can be disconnected, and the trailer is directly driven by the vehicle head. If the split mechanism 150 is not set, the rear axle 111 of the trailer will transmit power forward, which will cause power loss. Therefore, the split mechanism 150 is provided in the embodiment to avoid the reverse transmission of power. The existing split mechanism 150 generally needs to be manually operated by a shift fork and a clutch structure for split or combination operation.

[0071] Please refer to Figures 1 to 4 In the embodiment, the split mechanism 150 includes a housing 153, an input transmission wheel 154, an intermediate transmission wheel 155, and an output transmission wheel 156. The input transmission wheel 154, the intermediate transmission wheel 155, and the output transmission wheel 156 are coaxial and are sequentially rotatably arranged in the housing 153. The input transmission wheel 154 is provided with a first meshing tooth 157 on the side close to the intermediate transmission wheel 155, and the intermediate transmission wheel 155 is provided with a second meshing tooth 158 on the side close to the input transmission wheel 154, which cooperates with the first meshing tooth 157. The intermediate transmission wheel 155 is provided with a third meshing tooth 159 on the side close to the output transmission wheel 156, and the output transmission wheel 156 is provided with a fourth meshing tooth 161 on the side close to the intermediate transmission wheel 155, which meshes with the third meshing tooth 159. The second input shaft 151 is connected with the input transmission wheel 154, and the second output shaft 152 is connected with the output transmission wheel 156. When the input transmission wheel 154 is driven to rotate, the input transmission wheel 154 can drive the intermediate transmission wheel 155 to move towards the output transmission wheel 156, so that the third meshing tooth 159 and the fourth meshing tooth 161 are meshed while the first meshing tooth 157 and the second meshing tooth 158 are meshed. After the input transmission wheel 154 stops rotating, the intermediate transmission wheel 155 can move towards the input transmission wheel 154 to disengage the third meshing tooth 159 and the fourth meshing tooth 161.

[0072] The split mechanism 150 is provided with the above structure in the embodiment. Only when the input transmission wheel 154 is driven to rotate, the intermediate transmission wheel 155 moves to connect the input transmission wheel 154 and the output transmission wheel 156 in transmission, so that the power is transmitted backward to drive the rear axle 111 to drive the wheels of the trailer to rotate. When the backward transmitted power is disconnected, the input transmission wheel 154 stops driving to rotate, and the intermediate transmission wheel 155 is decoupled from the output transmission wheel 156, so that the power is not transmitted forward, which avoids the power loss. In the split state, no operation is needed.

[0073] Further, the first engaging tooth 157 comprises a first tooth portion 162 and a second tooth portion 163, the first tooth portion 162 is arranged on the end face of the input transmission wheel 154 close to the intermediate transmission wheel 155, the first tooth portion 162 is provided with a first guide slope, and the second tooth portion 163 is arranged on the end of the first tooth portion 162. When the input transmission wheel 154 is driven to rotate, the first guide slope 164 can cooperate with the second engaging tooth 158 to drive the intermediate transmission wheel 155 to move towards the output transmission wheel 156, so that the third engaging tooth 159 engages with the fourth engaging tooth 161, and the second tooth portion 163 engages with the second engaging tooth 158.

[0074] In this embodiment, the first engaging tooth 157 is arranged as the first tooth portion 162 and the second tooth portion 163, and the first guide surface is arranged on the first tooth portion 162. When the input transmission wheel 154 is actively rotated, the first guide surface can change the direction of the force to push the intermediate transmission wheel 155 to move, so that the intermediate transmission wheel 155 automatically engages with the input transmission wheel 154 and the output transmission wheel 156 at the same time.

[0075] Please refer to Figures 1 to 4 Further, the second engaging tooth 158 comprises a third tooth portion 165 and a fourth tooth portion 166, the third tooth portion 165 is arranged on the end face of the input transmission wheel 154 close to the intermediate transmission wheel 155, the third tooth portion 165 is provided with a second guide slope 167, and the fourth tooth portion 166 is arranged on the end of the third tooth portion 165. When the input transmission wheel 154 is driven to rotate, the second guide slope 167 can cooperate with the first engaging tooth 157 to drive the intermediate transmission wheel 155 to move towards the output transmission wheel 156, so that the third engaging tooth 159 engages with the fourth engaging tooth 161, and the fourth tooth portion 166 engages with the first engaging tooth 157.

[0076] In this embodiment, the second engaging tooth 158 is arranged as the third tooth portion 165 and the fourth tooth portion 166, and the second guide surface is arranged on the third tooth portion 165. When the input transmission wheel 154 is actively rotated, the second guide surface can change the direction of the force to push the intermediate transmission wheel 155 to move, so that the intermediate transmission wheel 155 automatically engages with the input transmission wheel 154 and the output transmission wheel 156 at the same time.

[0077] Specifically, the first engaging tooth 157 and the second engaging tooth 158 have the same shape, which can more quickly and efficiently drive the intermediate transmission wheel 155 to move. Of course, the guide slope can also be arranged on only one of the first engaging tooth 157 and the second engaging tooth 158.

[0078] Further, the second tooth portion 163 and the fourth tooth portion 166 are provided with abutting surfaces 168 on both sides in the circumferential direction, the first tooth portion 162 is provided with first guide inclined surfaces 164 on both sides in the circumferential direction, and the third tooth portion is provided with second guide inclined surfaces 167 on both sides in the circumferential direction.

[0079] In the embodiment, the second tooth portion 163 and the fourth tooth portion 166 are provided with abutting surfaces 168 on both sides in the circumferential direction, so that the input transmission wheel 154 and the intermediate transmission wheel 155 can be engaged in the case of forward rotation and reverse rotation of the input transmission wheel 154. The first tooth portion 162 is provided with first guide inclined surfaces 164 on both sides in the circumferential direction, and the third tooth portion is provided with second guide inclined surfaces 167 on both sides in the circumferential direction, so that the movement of the intermediate transmission wheel 155 can be ensured in the case of forward rotation and reverse rotation of the input transmission wheel 154.

[0080] In the embodiment, the second tooth portion 163 and the fourth tooth portion 166 are provided with abutting surfaces 168 on both sides in the circumferential direction, so that the input transmission wheel 154 and the intermediate transmission wheel 155 can be engaged in the case of forward rotation and reverse rotation of the input transmission wheel 154. The first tooth portion 162 is provided with first guide inclined surfaces 164 on both sides in the circumferential direction, and the third tooth portion is provided with second guide inclined surfaces 167 on both sides in the circumferential direction, so that the movement of the intermediate transmission wheel 155 can be ensured in the case of forward rotation and reverse rotation of the input transmission wheel 154.

[0081] Please refer to Figures 1 to 4 In the embodiment, the distribution mechanism 150 further comprises a guide shaft 169 and a spring 171. The guide shaft 169 is arranged between the output transmission wheel 156 and the output transmission wheel 156, and is coaxially arranged with the input transmission wheel 154 and the output transmission wheel 156, and is connected with each other. The intermediate transmission wheel 155 is provided with a through hole, the guide shaft 169 is arranged in the through hole, and the intermediate transmission wheel 155 can move along the guide shaft 169 to the direction of the input transmission wheel 154 or the output transmission wheel 156. The spring 171 is sleeved on the guide shaft 169, and is located between the intermediate transmission wheel 155 and the output transmission wheel 156, so as to provide the intermediate transmission wheel 155 with a spring force to the input transmission wheel 154, so as to drive the intermediate transmission wheel 155 to move to the direction of the input transmission wheel 154 after the input transmission wheel 154 stops rotating.

[0082] In the embodiment, the guide shaft 169 is arranged, so that the sliding installation of the intermediate transmission wheel 155 can be better realized. The spring 171 is arranged, so that in the case that the input transmission wheel 154 stops driving rotation, the spring 171 can push the intermediate transmission wheel 155 to move, and separate the intermediate transmission wheel 155 from the output transmission wheel 156. When the input transmission wheel 154 drives rotation, the movement of the intermediate transmission wheel 155 can make the spring 171 compressed to store energy.

[0083] It should be noted that the connection of the guide shaft 169 with the output transmission wheel 156 and the output transmission wheel 156 is that the guide shaft 169 can be integrally formed with one of them, and is rotatably connected with the other through a bearing. Secondly, the output transmission wheel 156 and the output transmission wheel 156 are also rotatably installed in the casing 153 through a bearing.

[0084] Secondly, in the embodiment, the third fitting tooth and the fourth fitting tooth are both directionally engaged teeth. In order to facilitate the installation of the spring 171, a spring 171 seat can also be arranged.

[0085] The tractor head is divided into various types. Some tractors are factory-fitted with a power output lifting device 180 assembly to connect rotary cultivators and other agricultural machinery. In this case, the wide-angle transmission shaft 120 is directly connected to the output shaft 183 of the power output lifting device 180 assembly. Another type of tractor is not factory-fitted with a power output lifting device 180. In this case, a power output lifting device 180 needs to be installed in the gearbox of the tractor head to facilitate the division of power from the gearbox of the tractor head and the connection of the transmission shaft 120.

[0086] Please refer to Figures 1 to 4 The power output lifting device 180 assembly includes a box body 181, a gear set 182, and an output shaft 183. The gear set 182 is rotatably installed in the box body 181, and the output shaft 183 is installed in the box body 181 and in transmission connection with the gear set 182. One end of the output shaft 183 extends out of the box body 181 and is in transmission connection with the end of the transmission shaft 120 away from the first input shaft 141. When the box body 181 is used to be installed in the gearbox of the tractor, the gear set can be engaged with the output gear of the gearbox to drive the output shaft 183 to rotate.

[0087] The power output lifting device 180 can conveniently divide the power from the gearbox of the tractor to the output shaft 183 to connect the transmission shaft 120.

[0088] In summary, the tractor-drawn trailer 100 provided in the embodiment connects the power source through the transmission shaft 120, and the transmission ratio of the tractor-drawn trailer corresponds to the transmission ratio of the tractor head through the speed change mechanism 140, which avoids the problem of tractor-drawn trailer pushing or dragging. The power transmission path can be disconnected through the power distribution mechanism 150 when the transmission shaft 120 does not transmit power backward, which is more energy-saving.

[0089] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical range disclosed in the present application can be easily thought of by those skilled in the art, which should be covered within the protection scope of the present application.

Claims

1. A dragline with a transmission mechanism, characterized in that, The drag body (110), the transmission shaft (120), the transmission mechanism (140) and the split mechanism (150) are provided on the drag body (110), the transmission mechanism (140) has a first input shaft (141) and a first output shaft (142), and the split mechanism (150) has a second input shaft (151) and a second output shaft (152); The drag body (110) has a rear axle (111) with an input shaft (113) for driving the wheels to rotate; The transmission shaft (120) is connected with the first input shaft (141) at one end and is connected with a power source at the other end; The first output shaft (142) is in driving connection with the second input shaft (151), and the second output shaft (152) is in driving connection with the input shaft (113) of the rear axle (111). The transmission shaft (120) is a wide-angle transmission shaft (120); 2. A dragline with a transmission mechanism according to claim 1, characterized in that, The wide-angle transmission shaft (120) comprises a first connecting shaft (121) and two universal joints (123) arranged at both ends of the first connecting shaft (121); One of the two universal joints (123) is connected with the first input shaft (141), and the other is connected with a power source. The transmission mechanism (140) comprises a housing (143), a first gear (144) and a second gear (145); 3. The dragline with a transmission mechanism according to claim 1, characterized in that, The first gear (144) and the second gear (145) are rotatably arranged in the housing (143) and are in mesh with each other; The first input shaft (141) is connected with the first gear (144) and extends out of the housing (143); The first output shaft (142) is connected with the second gear (145) and extends out of the housing (143). The first output shaft (142) and the second input shaft (151) are connected through a second connecting shaft (146).

4. The dragline with a transmission mechanism according to claim 1, characterized in that, The split mechanism (150) comprises a casing (153), an input transmission wheel (154), an intermediate transmission wheel (155) and an output transmission wheel (156); 5. The dragline with a transmission mechanism according to claim 1, characterized in that, The input transmission wheel (154), the intermediate transmission wheel (155) and the output transmission wheel (156) are coaxial and are sequentially rotatably arranged in the casing (153); The input transmission wheel (154) is provided with first meshing teeth (157) on the side close to the intermediate transmission wheel (155), and the intermediate transmission wheel (155) is provided with second meshing teeth (158) matched with the first meshing teeth (157) on the side close to the input transmission wheel (154); The intermediate transmission wheel (155) is provided with third meshing teeth (159) on the side close to the output transmission wheel (156), and the output transmission wheel (156) is provided with fourth meshing teeth (161) meshed with the third meshing teeth (159) on the side close to the intermediate transmission wheel (155); ​ The second input shaft (151) is connected with the input transmission wheel (154), and the second output shaft (152) is connected with the output transmission wheel (156); When the input transmission wheel (154) is driven to rotate, the input transmission wheel (154) can drive the intermediate transmission wheel (155) to move towards the output transmission wheel (156) so that the third meshing tooth (159) and the fourth meshing tooth (161) are engaged, and the first meshing tooth (157) and the second meshing tooth (158) are engaged; After the input transmission wheel (154) stops rotating, the intermediate transmission wheel (155) can move towards the input transmission wheel (154) so that the third meshing tooth (159) and the fourth meshing tooth (161) are disengaged.

6. A drag with a transmission according to claim 5, characterized in that The first meshing tooth (157) comprises a first tooth portion (162) and a second tooth portion (163), the first tooth portion (162) is arranged on the end face of the input transmission wheel (154) close to the intermediate transmission wheel (155), the first tooth portion (162) is provided with a first guide slope (164), and the second tooth portion (163) is arranged on the end portion of the first tooth portion (162); When the input transmission wheel (154) is driven to rotate, the first guide slope (164) can cooperate with the second meshing tooth (158) to drive the intermediate transmission wheel (155) to move towards the output transmission wheel (156) so that the third meshing tooth (159) and the fourth meshing tooth (161) are engaged, and the second tooth portion (163) and the second meshing tooth (158) are engaged.

7. A drag with a transmission according to claim 5 or 6, characterized in that The second meshing tooth (158) comprises a third tooth portion (165) and a fourth tooth portion (166), the third tooth portion (165) is arranged on the end face of the input transmission wheel (154) close to the intermediate transmission wheel (155), the third tooth portion (165) is provided with a second guide slope (167), and the fourth tooth portion (166) is arranged on the end portion of the third tooth portion (165); When the input transmission wheel (154) is driven to rotate, the second guide slope (167) can cooperate with the first meshing tooth (157) to drive the intermediate transmission wheel (155) to move towards the output transmission wheel (156) so that the third meshing tooth (159) and the fourth meshing tooth (161) are engaged, and the fourth tooth portion (166) and the first meshing tooth (157) are engaged.

8. The dragline with a transmission mechanism according to claim 5, characterized in that, The first meshing tooth (157) comprises a first tooth portion (162) and a second tooth portion (163), the first tooth portion (162) is arranged on the end face of the input transmission wheel (154) close to the intermediate transmission wheel (155), the first tooth portion (162) is provided with a first guide slope (164), and the second tooth portion (163) is arranged on the end portion of the first tooth portion (162); When the input transmission wheel (154) is driven to rotate, the first guide slope (164) can cooperate with the second meshing tooth (158) to drive the intermediate transmission wheel (155) to move towards the output transmission wheel (156) so that the third meshing tooth (159) and the fourth meshing tooth (161) are engaged, and the second tooth portion (163) and the second meshing tooth (158) are engaged. The second engaging tooth (158) comprises a third tooth portion (165) and a fourth tooth portion (166), the third tooth portion (165) is arranged on the end face of the input transmission wheel (154) close to the intermediate transmission wheel (155), the third tooth portion (165) is provided with a second guide slope (167), and the fourth tooth portion (166) is arranged on the end of the third tooth portion (165); The second tooth portion (163) and the fourth tooth portion (166) are both provided with abutting faces (168) on the circumferential sides, the first tooth portion (162) is both provided with the first guide slope (164) on the circumferential sides, and the third tooth portion (165) is both provided with the second guide slope (167) on the circumferential sides; When the input transmission wheel (154) is driven to rotate, the first guide slope (164) can cooperate with the guide slope to drive the intermediate transmission wheel (155) to move towards the output transmission wheel (156), so that the third engaging tooth (159) is engaged with the fourth engaging tooth (161), and the second tooth portion (163) is engaged with the fourth tooth portion (166).

9. A drag with a transmission according to claim 5 or 6, characterized in that, The power distribution mechanism (150) further comprises a guide shaft (169) and a spring (171); The guide shaft (169) is arranged between the output transmission wheel (156) and the output transmission wheel (156), and is coaxially arranged with the input transmission wheel (154) and the output transmission wheel (156), and is connected with each other; The intermediate transmission wheel (155) is provided with a through hole, the guide shaft (169) is arranged in the through hole, and the intermediate transmission wheel (155) can move towards the input transmission wheel (154) or the output transmission wheel (156) along the guide shaft (169); The spring (171) is sleeved on the guide shaft (169) and located between the intermediate transmission wheel (155) and the output transmission wheel (156), so as to provide elastic force to the intermediate transmission wheel (155) towards the input transmission wheel (154), so as to drive the intermediate transmission wheel (155) to move towards the input transmission wheel (154) after the input transmission wheel (154) stops rotating.

10. The dragline with a transmission mechanism according to claim 1, characterized in that, The drag bucket with transmission mechanism further comprises a power output lifting device (180) assembly, the power output lifting device (180) assembly comprises a box body (181), a gear set (182) and an output shaft (183); The gear set (182) is rotatably mounted on the box body (181), the output shaft (183) is mounted on the box body (181) and in transmission connection with the gear set (182), one end of the output shaft (183) extends out of the box body (181) and is in transmission connection with the transmission shaft (120) away from the first input shaft (141); When the box body (181) is used to be mounted on the gearbox of the tractor, the gear set (182) can be engaged with the output gear of the gearbox to drive the output shaft (183) to rotate.

Images