Speed ratio changing control mechanism for driving winding rope

Abstract

The utility model discloses a speed ratio changing control mechanism for driving a winding rope, and belongs to the technical field of rope climbing machines. The technical problem of speed change and load capacity switching control of a rope winding wheel on the rope climbing machine is solved. According to the technical scheme, the gearbox mechanism is characterized by comprising a box body, a box cover, an intermediate gear shaft, a first speed ratio changing gear shaft, a second speed ratio changing gear shaft and a clutch mechanism, the intermediate gear shaft is in meshing transmission with the first speed ratio changing gear shaft, and the first speed ratio changing gear shaft and the second speed ratio changing gear shaft are meshed with a first speed ratio gear pair and a second speed ratio gear pair; the clutch mechanism is arranged on the second speed ratio changing gear shaft and located between the first speed ratio gear pair and the second speed ratio gear pair, an output shaft of the second speed ratio changing gear shaft is used for driving the rope winding wheel, and the clutch mechanism is used for switching the first speed ratio gear pair to work to achieve output of the output shaft or switching the second speed ratio gear pair to work to achieve output of the output shaft. The device has the advantages that gears can be switched, the working mode can be adjusted, the device can be in a low-speed high-load working condition, and a high-speed low-load working condition can also be selected.

Description

Technical Field

[0001] The present application relates to the technical field of rope climbing machines or climbing machines, and in particular to a speed ratio changing control mechanism for driving a winding rope. Background Art

[0002] At present, the main structures of existing rope climbing machines include a mounting frame, a rope reel is rotatably mounted on the mounting frame, and a motor is fixedly installed. The motor is used to provide driving force, and the driving of the motor is realized by a speed change mechanism installed on the mounting frame. The rope reel reels up the rope to achieve climbing and lifting on the rope.

[0003] In the process of changing some usage scenarios, we need to adjust the rope climbing work of the rope reel. When the rope reel is reeling in the rope, the rope climbing machine itself needs to carry heavy objects to achieve the lifting of the heavy objects.

[0004] For example, the rope climbing machine technology with application number: CN202020181356.0, the load of the rope reel (wheel) increases. We know that for the speed and torque, on the rope reel, if the speed of the driving rope reel increases, its torque will decrease, and the corresponding load of the traction object is relatively small, for example, 300 kg. However, if 500 kg of cargo needs to be towed, the torque needs to be increased and the speed needs to be reduced. Therefore, the above-mentioned product cannot meet this speed regulation function, and therefore cannot meet the user needs under such working conditions.

[0005] It is found that the above technology has at least the following problems: the rope winding wheel cannot be conveniently operated to adjust the speed. Utility Model Content

[0006] In view of the above-mentioned shortcomings (problems) of the prior art, in order to be able to conveniently and reliably perform speed regulation operations and change speed ratios, the present application provides a speed ratio control mechanism for driving a winding rope.

[0007] To achieve the above objectives and other related objectives, this application adopts the following technical solutions:

[0008] A speed ratio control mechanism for driving a rope winding comprises a mounting frame, a motor, a gearbox mechanism, and a rope winding wheel. The motor is fixed on the mounting frame for providing power. The gearbox mechanism is connected between the motor and the rope winding wheel for transmitting power. The gearbox mechanism comprises a box body, a box cover, an intermediate gear shaft, a speed ratio gear shaft 1, a speed ratio gear shaft 2, and a clutch mechanism. The intermediate gear shaft is meshed with the speed ratio gear shaft 1 for transmission. The speed ratio gear shaft 1 and the speed ratio gear shaft 2 are meshed with a first speed ratio gear pair and a second speed ratio gear pair. The clutch mechanism is arranged on the speed ratio gear shaft 2 and is between the first speed ratio gear pair and the second speed ratio gear pair. The output shaft of the speed ratio gear shaft 2 is used to drive the rope winding wheel. The clutch mechanism is used to switch to the first speed ratio gear pair to realize output of the output shaft or to switch to the second speed ratio gear pair to realize output of the output shaft.

[0009] Preferably, the speed ratio changing gear shaft 2 includes a first speed ratio gear component 2, a second speed ratio gear component 2, and an output shaft, and the speed ratio changing gear shaft 1 includes a first speed ratio gear component 1, a second speed ratio gear component 1, the first speed ratio gear component 2 and the first speed ratio gear component 1 are meshed for transmission, and the second speed ratio gear component 2 and the second speed ratio gear component 1 are meshed for transmission;

[0010] The clutch mechanism includes a first clutch tooth fixed or integrally arranged on the first speed ratio gear member 2, a second clutch tooth fixed or integrally arranged on the second speed ratio gear member 2, a connecting tooth fixed or integrally arranged on the output shaft (), a clutch gear ring, and an operating ring. The connecting tooth is located between the first clutch tooth and the second clutch tooth. The clutch gear ring is sleeved on the connecting tooth and moves in the axial direction of the connecting tooth to select the connecting first clutch tooth or the connecting second clutch tooth. The operating ring is sleeved on the clutch gear ring to operate the clutch gear ring axially and provide the clutch gear ring with circumferential rotation.

[0011] Preferably, the engaging teeth are fixed on the output shaft by means of a key connection, and the first speed ratio gear component 2 and the second speed ratio gear component 2 are rotatably connected on the output shaft via bearings.

[0012] Preferably, the first clutch tooth is fixed to the side surface of the first speed ratio gear member 2 by means of concave-convex engagement, and the second clutch tooth is fixed to the side surface of the second speed ratio gear member 2 by means of concave-convex engagement.

[0013] Preferably, the operating ring is provided with a notch, the two ends of the operating ring are buckled, and the inner ring portion of the operating ring is circumferentially provided with oil grooves.

[0014] Preferably, at least two mounting seats are evenly distributed on the outer peripheral side of the operating ring, each mounting seat is limited and slidably assembled on the box body, and an operating rod is inserted into the mounting seat, and the operating rod is stuck in the support groove of the box cover.

[0015] Preferably, both ends of the operating rod extend into the mounting seat respectively, and the remaining part is located outside the box cover, and the support groove is used for the operating rod to swing and limit.

[0016] Preferably, the clutch gear ring has only two travel states, one state is disengaging from the first clutch tooth and keeping the connecting tooth and the second clutch tooth engaged, and the second state is disengaging from the second clutch tooth and keeping the connecting tooth and the first clutch tooth engaged.

[0017] Preferably, the inner tooth structure of the clutch gear ring and the outer tooth profile of the connecting tooth are complementary and matched, wherein the arc length of the connecting tooth is greater than the arc length of the first clutch tooth or the second clutch tooth.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] 1. In order to achieve the speed regulation of the motor-driven rope reel, realize the switching operation of different gear speeds, and realize reliable and practical use, this solution uses the intermediate gear shaft to transmit the power of the motor, and uses the gear meshing speed ratio on different gear shafts to achieve speed regulation, realize two-speed output, and use the clutch mechanism to achieve the switching of the two speed outputs. The position of the clutch mechanism design can enable the output shaft to drive the rope reel to work at the first speed or the second speed, that is, one high speed, low torque and light load, and the other low speed, high torque and heavy load;

[0020] 2. In terms of speed switching operation, the design of the clutch mechanism can make assembly more efficient and maintenance easier;

[0021] 3. The clutch mechanism does not have a neutral state, and the rope winding wheel will not be in a neutral state (the neutral state will cause the rope winding wheel to rotate, which may easily cause slipping hazards when climbing ropes). This operation and use are safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0023] Figure 2 It is a structural diagram of the gearbox mechanism;

[0024] Figure 3 yes Figure 2 A top view of

[0025] Figure 4 yes Figure 3 The cross-sectional view of the AA surface;

[0026] Figure 5 This is the exploded diagram of the gearbox structure;

[0027] Figure 6 It is a schematic diagram of the transmission principle.

[0028] Description of main reference numerals:

[0029] 1. Mounting frame; 2. Motor; 3. Gearbox mechanism; 31. Box body; 32. Box cover; 321. Support groove; 33. Intermediate gear shaft; 34. Speed ​​ratio gear shaft 2; 341. First speed ratio gear piece 2; 342. Second speed ratio gear piece 2; 343. Output shaft; 35. Speed ​​ratio gear shaft 1; 351. First speed ratio gear piece 1; 352. Second speed ratio gear piece 1; 36. Clutch mechanism; 361. First clutch tooth; 362. Second clutch tooth; 363. Engaging tooth; 364. Clutch gear ring; 365. Operating ring; 3651. Notch; 3652. Mounting seat; 3654. Oil tank; 4. Rope reel; 6. Operating lever; 7. Planetary drive.

[0030] First speed ratio gear pair: 341, first speed ratio gear piece 2; 351, first speed ratio gear piece 1;

[0031] Second speed ratio gear pair: 342, second speed ratio gear piece 2; 352, second speed ratio gear piece 1. DETAILED DESCRIPTION

[0032] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0033] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show the components related to the present application rather than being drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0034] The following is combined with Figure 1-6 The specific implementation methods of this application are further described. Example

[0035] The present application embodiment discloses a speed ratio control mechanism for driving a winding rope, referring to Figure 1 , Figure 2 and Figure 3As shown, it includes a mounting frame 1, a motor 2, a gearbox mechanism 3, and a rope reel 4. The motor 2 is fixed on the mounting frame 1 to provide power, and the motor shaft outputs rotational power. There are gears on the motor shaft, which can cooperate with the gearbox mechanism 3 to drive. The gearbox mechanism 3 is connected between the motor 2 and the rope reel 4 to transmit power. The gearbox mechanism 3 is powered by the motor 2, and the gearbox mechanism 3 performs power conversion to output mechanical energy that meets the working requirements of the rope reel 4.

[0036] The gearbox mechanism 3 includes a box body 31, a box cover 32, an intermediate gear shaft 33, a gear shaft 1 for changing speed ratio 35, a gear shaft 2 for changing speed ratio 34, and a clutch mechanism 36. The box body 31 is fixed on the mounting frame 1 to provide installation space for the intermediate gear shaft 33, the gear shaft 1 for changing speed ratio 35, the gear shaft 2 for changing speed ratio 34, and the clutch mechanism 36, and is closed by the box cover 32, thereby protecting the internal transmission and preventing foreign matter from entering. The design of the box cover 32 is also very easy to disassemble, so as to facilitate the inspection of the internal structure.

[0037] Combination Figure 3 , Figure 4 and Figure 5 The gear of the motor shaft meshes with the intermediate gear shaft 33, and the intermediate gear shaft 33 meshes with the speed ratio changing gear shaft 1 35 for transmission. The speed ratio changing gear shaft 1 35 and the speed ratio changing gear shaft 2 34 mesh with the first speed ratio gear pair and the second speed ratio gear pair.

[0038] The clutch mechanism 36 is arranged on the speed ratio gear shaft 2 34 and is located between the first speed ratio gear pair and the second speed ratio gear pair. The output shaft 343 of the speed ratio gear shaft 2 34 is used to drive the rope winding wheel 4. The clutch mechanism 36 is used to switch to the first speed ratio gear pair to realize the output of the output shaft 343 or switch to the second speed ratio gear pair to realize the output of the output shaft 343.

[0039] The first speed ratio gear pair refers to: the first speed ratio gear member 2 341 and the first speed ratio gear member 1 351 cooperate in transmission, and through the gear speed ratio design, the first speed output is completed, that is, the output speed of the output shaft 343 is the first speed.

[0040] Similarly, for the second speed ratio gear pair, it means that the second speed ratio gear member 2 342 and the second speed ratio gear member 1 352 cooperate in transmission, and through the gear speed ratio design, the second speed output is completed, that is, the output speed of the output shaft 343 is the second speed.

[0041] Specifically, the speed ratio changing gear shaft 2 34 includes a first speed ratio gear member 2 341, a second speed ratio gear member 2 342, and an output shaft 343. The speed ratio changing gear shaft 1 35 includes a first speed ratio gear member 1 351 and a second speed ratio gear member 1 352. The first speed ratio gear member 2 341 and the first speed ratio gear member 1 351 are meshed for transmission, and the second speed ratio gear member 2 342 and the second speed ratio gear member 1 352 are meshed for transmission. The first speed ratio gear member 2 341 and the second speed ratio gear member 2 342 are rotatably connected on their output shaft 343.

[0042] The clutch mechanism 36 includes a first clutch tooth 361 fixed on the first speed ratio gear member 341, a second clutch tooth 362 fixed on the second speed ratio gear member 342, a connecting tooth 363, a clutch gear ring 364, and an operating ring 365. The connecting tooth 363 is located between the first clutch tooth 361 and the second clutch tooth 362, and the connecting tooth 363 is fixed on the output shaft 343. Preferably, the connecting tooth 363 is fixed on the output shaft 343 by a key connection, and the first speed ratio gear member 341 and the second speed ratio gear member 342 are rotatably connected on the output shaft 343. This is for easy assembly. In terms of design, the internal tooth structure of the clutch gear ring 364 and the external tooth profile of the connecting tooth 363 complement each other, wherein the arc length of the teeth of the connecting tooth 363 is greater than the arc length of the teeth of the first clutch tooth 361 or the second clutch tooth 362, and the purpose of such design is to make it easier for the clutch gear ring 364 to connect. The first clutch tooth 361 and the second clutch tooth 362 have the same structure.

[0043] The clutch gear ring 364 is sleeved on the engaging teeth 363 and moves axially on the engaging teeth 363 to select the first clutch teeth 361 or the second clutch teeth 362 to be engaged. The operating ring 365 is sleeved on the clutch gear ring 364 to operate the clutch gear ring 364 axially and to allow the clutch gear ring 364 to rotate circumferentially.

[0044] The first clutch tooth 361 is fixed to the side surface of the first speed ratio gear member 2 341 by means of concave-convex engagement, and the second clutch tooth 362 is fixed to the side surface of the second speed ratio gear member 2 342 by means of concave-convex engagement.

[0045] exist Figure 5 As can be seen in the figure, the operating ring 365 is provided with a notch 3651, and the two ends of the operating ring 365 are buckled. This design can facilitate the assembly of the operating ring 365. The operating ring 365 can be made of wear-resistant nylon material to reduce weight. At the same time, the inner ring part of the operating ring 365 is circumferentially distributed with oil grooves 3654. In order to reduce wear, grease can be added here. Due to the presence of the oil groove 3654, more grease can be stored for efficient and long-lasting lubrication, thereby extending the service life.

[0046] Specifically, at least two mounting seats 3652 are evenly distributed on the circumference of the operating ring 365. In this example, two mounting seats 3652 are designed, and the operating rod 6 is inserted into the mounting seats 3652, and the operating rod 6 is inserted into the support groove 321 of the box cover 32. Both ends of the operating rod 6 extend into the mounting seats 3652, and the remaining part is outside the box cover 32. The support groove 321 is used for the swing limit of the operating rod 6. The clutch mechanism 36 is in a high-speed second speed ratio transmission state in the initial state.

[0047] The clutch gear ring has only two travel states, one is to disengage the first clutch tooth and keep the connecting tooth and the second clutch tooth engaged, and the second is to disengage the second clutch tooth and keep the connecting tooth and the first clutch tooth engaged. The clutch mechanism has no neutral state, and the rope reel will not be in a neutral state (the neutral state will cause the rope reel to rotate, which is easy to cause slipping hazards when climbing ropes), so the operation and use are safer and more reliable.

[0048] Usage process: According to the lever principle, the operating lever 6 can be pressed very effortlessly to make the operating lever 6 swing, thereby compressing the spring 5 and allowing the operating ring 365 to move axially, thereby moving the clutch gear ring 364 to engage the intermediate gear ring 363 and the first clutch tooth 361 at the same time. The first clutch tooth 361 and the first speed ratio gear member 2 341 are fixed. Therefore, the power transmission direction at this time is: first speed ratio gear member 1 351-first speed ratio gear member 2 341-output shaft 343-(planetary drive 7)-rope winding wheel 4.

[0049] In the initial reset state (spring 5 reset state), spring 5 makes the clutch gear ring 364 always engage with the connecting tooth 363 and the second clutch tooth 362. The second clutch tooth 362 and the second speed ratio gear member 2 342 are fixed. Therefore, the power transmission direction at this time is: second speed ratio gear member 1 352-second speed ratio gear member 2 342-output shaft 343-(planetary drive 7)-winding wheel 4.

[0050] It can be seen that: in order to achieve the speed regulation of the motor 2 driving the rope reel 4, realize the switching operation of different gear speeds, and make the driving of the rope reel 4 reliable and practical, the connecting teeth 363 and the wheel shaft 33 are used to transmit the power of the motor 2, and the gear meshing speed ratio on different gear shafts is used to achieve speed regulation, and two speed outputs are achieved. The clutch mechanism 36 is used to achieve the switching of the two speed outputs. The position of the clutch mechanism 36 is designed to allow the output shaft 343 to drive the rope reel 4 to work at the first speed or the second speed, that is, a high speed, low torque and light load, and a low speed, high torque and heavy load. In terms of the speed switching operation, the design of the clutch mechanism 36 can make assembly more efficient and maintenance easier.

[0051] The above embodiments are only illustrative of the principles and effects of the present application, and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A speed ratio control mechanism for driving a rope winding, comprising a mounting frame (1), a motor (2), a gearbox mechanism (3), and a rope winding wheel (4), wherein the motor (2) is fixed on the mounting frame (1) for providing power, and the gearbox mechanism (3) is connected between the motor (2) and the rope winding wheel (4) for transmitting power, characterized in that: The gearbox mechanism (3) comprises a case body (31), a case cover (32), an intermediate gear shaft (33), a first speed ratio gear shaft (35), a second speed ratio gear shaft (34), and a clutch mechanism (36); the intermediate gear shaft (33) is meshed with the first speed ratio gear shaft (35) for transmission; the first speed ratio gear shaft (35) and the second speed ratio gear shaft (34) are meshed with a first speed ratio gear pair and a second speed ratio gear pair; the clutch mechanism (36) is arranged on the second speed ratio gear shaft (34) and is located between the first speed ratio gear pair and the second speed ratio gear pair; the output shaft (343) of the second speed ratio gear shaft (34) is used to drive the rope winding wheel (4); the clutch mechanism (36) is used to switch to the first speed ratio gear pair to realize the output of the output shaft (343) or to switch to the second speed ratio gear pair to realize the output of the output shaft (343).

2. The speed ratio changing control mechanism for driving the winding rope according to claim 1, characterized in that: The speed ratio changing gear shaft 2 (34) comprises a first speed ratio gear member 2 (341), a second speed ratio gear member 2 (342), and an output shaft (343); the speed ratio changing gear shaft 1 (35) comprises a first speed ratio gear member 1 (351), a second speed ratio gear member 1 (352); the first speed ratio gear member 2 (341) and the first speed ratio gear member 1 (351) are meshed for transmission; the second speed ratio gear member 2 (342) and the second speed ratio gear member 1 (352) are meshed for transmission; The clutch mechanism (36) comprises a first clutch tooth (361) fixed or integrally arranged on the first speed ratio gear member 2 (341), a second clutch tooth (362) fixed or integrally arranged on the second speed ratio gear member 2 (342), a connecting tooth (363) fixed or integrally arranged on the output shaft (343), a clutch gear ring (364), and an operating ring (365). The connecting tooth (363) is located between the first clutch tooth (361) and the second clutch tooth (362). The clutch gear ring (364) is sleeved on the connecting tooth (363) and moves in the axial direction of the connecting tooth (363) to select the first clutch tooth (361) or the second clutch tooth (362). The operating ring (365) is sleeved on the clutch gear ring (364) to operate the clutch gear ring (364) axially and to allow the clutch gear ring (364) to rotate circumferentially.

3. The speed ratio changing control mechanism for driving the winding rope according to claim 2, characterized in that: The engaging teeth (363) are fixed on the output shaft (343) by means of a key connection, and the first speed ratio gear member 2 (341) and the second speed ratio gear member 2 (342) are rotatably connected on the output shaft (343) by means of a bearing.

4. The speed ratio changing control mechanism for driving the winding rope according to claim 2, characterized in that: The first clutch tooth (361) is fixed to the side surface of the first speed ratio gear member 2 (341) by means of concave-convex engagement, and the second clutch tooth (362) is fixed to the side surface of the second speed ratio gear member 2 (342) by means of concave-convex engagement.

5. The speed ratio changing control mechanism for driving the winding rope according to claim 2, characterized in that: The operating ring (365) is provided with a notch (3651), the two ends of the operating ring (365) are buckled, and the inner ring portion of the operating ring (365) is circumferentially distributed with oil grooves (3654).

6. The speed ratio changing control mechanism for driving the winding rope according to claim 2, characterized in that: At least two mounting seats (3652) are evenly distributed on the outer peripheral side of the operating ring (365), each mounting seat (3652) is limited and slidably assembled on the box body (31), and an operating rod (6) is inserted into the mounting seat (3652), and the operating rod (6) is inserted into the support groove (321) of the box cover (32).

7. The speed ratio changing control mechanism for driving the winding rope according to claim 6, characterized in that: The two ends of the operating rod (6) extend into the mounting seat (3652) respectively, and the remaining part is located outside the box cover (32), and the support groove (321) is used for the operating rod (6) to swing and limit.

8. The speed ratio changing control mechanism for driving the winding rope according to claim 2, characterized in that: The clutch gear ring (364) has only two travel states, one state is to disengage from the first clutch tooth (361) and keep the engaging tooth (363) and the second clutch tooth (362) engaged, and the second state is to disengage from the second clutch tooth (362) and keep the engaging tooth (363) and the first clutch tooth (361) engaged.

9. The speed ratio changing control mechanism for driving the winding rope according to claim 2, characterized in that: The inner tooth structure of the clutch gear ring (364) and the outer tooth profile of the connecting tooth (363) complement each other, wherein the arc length of the tooth of the connecting tooth (363) is greater than the arc length of the tooth of the first clutch tooth (361) or the second clutch tooth (362).

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