Compact transmission device for jacking mechanism

Abstract

The utility model discloses a compact transmission device for a jacking mechanism, which relates to the technical field of gear transmission and comprises a first outer shell, a second outer shell is fixedly arranged on the front side of the first outer shell, and a driving motor is fixedly arranged on the outer wall of the second outer shell in the first outer shell. A worm is fixedly arranged at the end of an output shaft of the driving motor, a rotating shaft is arranged above the worm and penetrates through the second outer shell, a worm gear is fixedly arranged at the end, located in the first outer shell, of the rotating shaft and meshed with the worm, and a first gear is arranged at the end, located in the second outer shell, of the rotating shaft. The driving motor serves as a power source to drive the whole device to operate, the worm and the worm gear are matched to form a self-locking structure, a follow-up device can be prevented from reversing, and the reliability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear drive technical field, concretely is a compact transmission device for jacking mechanism. BACKGROUND

[0002] The jacking mechanism transmission device in the machine tool is mainly used for realizing the vertical lifting of workpieces or tools in the machining process, so as to replace workpieces, adjust positions or carry out other operations. It is an important component of the degree of automation of the machine tool, can effectively improve production efficiency, reduce labor intensity, and ensure machining precision and safety. The periodic action of the jacking mechanism is usually precisely controlled by a control system, and the lifting process is automated through buttons, sensors or programmed controllers, ensuring the accuracy and repeatability of the operation. In addition, the jacking device in the machine tool often needs to have certain load bearing capacity and stability to adapt to the machining needs of different workpieces. In order to ensure the long-term stable operation of the jacking mechanism, regular inspection and maintenance are crucial, especially the lubrication and sealing maintenance of the transmission device and the hydraulic system, which can effectively prolong the service life of the machine tool.

[0003] The utility model with the publication number CN216895618U discloses a jacking mechanism of gear chain drive, which integrates the chain wheel output shaft, the first gear shaft and the second gear shaft between two fixed plates, making it more convenient to maintain and replace, and the rotation directions of the two cranks are opposite, making the jacking mechanism more balanced in stress.

[0004] The above device can improve the running stability of the jacking mechanism, but it lacks a self-locking mechanism. Once the weight of the jacking mechanism on the crank is large, it is easy to rotate, and even the driving mechanism on the input shaft may be damaged, reducing the service life of the device. Therefore, a transmission device with a self-locking mechanism is needed. TECHNICAL FIELD

[0005] The utility model aims to provide a compact transmission device for jacking mechanism to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The utility model provides a compact transmission device for jacking mechanism, first shell body is fixedly arranged with second shell body on the front side, drive motor is fixedly arranged on the inside of first shell body and the outer wall of second shell body, the output shaft end of drive motor is fixedly arranged with worm, the upper portion of worm is provided with rotating shaft and passes through second shell body, the end of rotating shaft is fixedly arranged with worm wheel in the inside of first shell body and worm wheel is engaged with worm, the end of rotating shaft is provided with first gear in the inside of second shell body, the side away from drive motor of first gear is rotatably installed with second gear through rotating shaft and second gear is engaged with first gear, the side away from first gear of second gear is rotatably installed with third gear through rotating shaft and third gear is engaged with second gear, the side close to drive motor of first gear is rotatably installed with third gear through rotating shaft and third gear is engaged with first gear, the outer end of rotating shaft passes through second shell body and is fixedly arranged with crank on the upper third gear, the front side of crank is provided with jacking device, and the both sides of second shell body are provided with limiting side plate matched with jacking device.

[0008] As a further scheme of the utility model: the first gear and the second gear have the same size and the same number of teeth.

[0009] As a further scheme of the utility model: the jacking device comprises an intermediate sleeve, rotating blocks are slidably arranged at the two ends of the intermediate sleeve, the rotating blocks are rotatably connected with the crank through bearings, a first spring is arranged in the intermediate sleeve between the two rotating blocks, and the two ends of the first spring are fixedly connected with the inner ends of the two rotating blocks, recesses are formed in the outer ends of the rotating blocks, moving blocks are slidably arranged in the recesses, and second springs are arranged in the moving blocks.

[0010] As a further scheme of the utility model: elastic retaining rings are arranged on the outer sides of the rotating blocks and protruding portions of the crank.

[0011] As a further scheme of the utility model: a plurality of rolling balls are uniformly arranged on the outer end faces of the moving blocks.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The drive motor is used as a power source to drive the whole device to rotate, the worm and the worm wheel form a self-locking structure, which can prevent the subsequent device from reversing and improve the reliability of the device, the first gear and the second gear have the same size and the same number of teeth, so that the two third gears have the same rotating speed, the movement of the crank is facilitated, and the stress balance of the jacking device is improved.

[0014] 2. The intermediate sleeve, the elastic retaining ring and the limiting side plate are matched with each other, so that the two rotating blocks stably move on the crank, and the purpose of periodic jacking is achieved, the elastic retaining ring plays a limiting role, and the operation efficiency of the device is improved. Attached Figure Description

[0015] Fig. 1 This is a three-dimensional structural diagram of the present invention.

[0016] Fig. 2 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0017] Fig. 3 This is a partial three-dimensional structural schematic diagram of the present invention.

[0018] Fig. 4 This is a partial exploded view of the present invention.

[0019] Reference numerals in the attached drawings: 1. First outer shell; 2. Second outer shell; 3. Drive motor; 4. Worm; 5. Worm wheel; 6. First gear; 7. Second gear; 8. Third gear; 9. Lifting device; 91. Intermediate sleeve; 92. First spring; 93. Rotating block; 94. Moving block; 95. Second spring; 10. Crank; 11. Elastic retaining ring; 12. Limiting side plate. Detailed Implementation

[0020] The following embodiments will be described in detail with reference to the accompanying drawings. In the drawings and description, similar or identical parts are referred to by the same reference numerals. Furthermore, in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this utility model are merely illustrative and not intended to limit the scope of the utility model. Any obvious modifications or alterations made to this utility model do not depart from its spirit and scope.

[0021] Example

[0022] Please see Figs. 1-4The utility model discloses an embodiment of a compact transmission device for jacking mechanism, including first outer casing 1, the first outer casing 1 front side fixedly arranged with second outer casing 2, the first outer casing 1 inside is fixedly arranged with drive motor 3 on the outer wall of second outer casing 2, the drive motor 3 output shaft end fixedly arranged with worm 4, the worm 4 top is provided with the pivot and passes through second outer casing 2, the pivot end is fixedly arranged with worm wheel 5 in the first outer casing 1 and the worm wheel 5 is engaged with worm 4, the pivot end is provided with first gear 6 in second outer casing 2, first gear 6 is away from drive motor 3 one side and is rotatably installed with second gear 7 through the pivot and second gear 7 is engaged with first gear 6, second gear 7 is away from first gear 6 one side and is rotatably installed with third gear 8 through the pivot and third gear 8 is engaged with second gear 7, first gear 6 and second gear 7 size tooth number is same, first gear 6 is rotatably installed with third gear 8 through the pivot and third gear 8 is engaged with first gear 6 on drive motor 3 one side, the pivot passes through second outer casing 2 and is fixedly arranged with crank 10 on the outer end of pivot, the jacking device 9 of crank 10 front side is provided with, second outer casing 2 both sides are provided with the limiting side plate 12 of cooperation with jacking device 9, through drive motor 3 as power source drive whole device operation, worm 4 and worm wheel 5 cooperation form self-locking structure, can prevent subsequent device reverse, improve the reliability of lifting device, first gear 6 and second gear 7 size tooth number is same, so that two third gear 8 rotation speed is same, facilitate control crank 10 movement, also improve jacking device 9 stress balance.

[0023] The jacking device 9 includes an intermediate sleeve 91, the two ends of the intermediate sleeve 91 are respectively provided with rotating blocks 93, the rotating blocks 93 are rotatably connected with the crank 10 through bearings, the rotating blocks 93 are provided with elastic retaining rings 11 on the protruding portions of the crank 10 on the outer sides, a first spring 92 is arranged in the intermediate sleeve 91 between the two rotating blocks 93, and the two ends of the first spring 92 are respectively fixedly connected with the inner ends of the two rotating blocks 93, recesses are formed in the outer end portions of the rotating blocks 93, moving blocks 94 are slidably arranged in the recesses, a plurality of balls are uniformly arranged on the outer end faces of the moving blocks 94, and a second spring 95 is arranged in the moving blocks 94, the intermediate sleeve 91, the elastic retaining rings 11, and the limiting side plates 12 are cooperated with each other, so that the two rotating blocks 93 stably move on the crank 10, and the purpose of periodic jacking is achieved, the elastic retaining rings 11 play a limiting role, and the operation efficiency of the lifting device is improved.

[0024] When the device is in use, the driving motor 3 is started to drive the worm 4 to rotate the worm wheel 5, and then drive the first gear 6 on the same shaft to rotate, drive the second gear 7 and the third gear 8 to rotate, the first gear 6 and the second gear 7 have the same size and tooth number, the third gears 8 on both sides have opposite rotating directions and the same rotating speed, so that the two cranks 10 have the same height when rotating, drive the two rotating blocks 93 to operate periodically, when the two cranks 10 are located at the outermost side, the first spring 92 is in a stretched state, and the second spring 95 is in a compressed state, when the two cranks 10 are located at the innermost side, the first spring 92 is in a compressed state, and the second spring 95 is in a stretched state, and the moving block 94 slides out of the groove at the end of the rotating block 93, and the periodic jacking work is completed.

[0025] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to embrace all changes falling within the meaning and range of equivalents of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0026] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A compact transmission for a jacking mechanism comprising a first outer housing (1), characterized in that, The second shell body (2) is fixedly arranged on the front side of the first shell body (1), the driving motor (3) is fixedly arranged on the outer wall of the second shell body (2) in the first shell body (1), the output shaft end of the driving motor (3) is fixedly provided with a worm (4), the worm (4) is provided with a rotating shaft above and the rotating shaft penetrates through the second shell body (2), the rotating shaft end is fixedly provided with a worm gear (5) in the first shell body (1) and the worm gear (5) is engaged with the worm (4), the rotating shaft end is provided with a first gear (6) in the second shell body (2), the first gear (6) is rotatably installed with a second gear (7) through the rotating shaft away from the driving motor (3) side and the second gear (7) is engaged with the first gear (6), the second gear (7) is rotatably installed with a third gear (8) through the rotating shaft away from the first gear (6) side and the third gear (8) is engaged with the second gear (7), the first gear (6) is rotatably installed with a third gear (8) through the rotating shaft close to the driving motor (3) side and the third gear (8) is engaged with the first gear (6), the rotating shaft penetrates through the second shell body (2) on the third gear (8) and the outer end of the rotating shaft is fixedly provided with a crank (10), the crank (10) is provided with a jacking device (9) on the front side, and the second shell body (2) is provided with a limiting side plate (12) matched with the jacking device (9) on both sides.

2. A compact gear unit for a jacking mechanism according to claim 1, characterized in that The first gear (6) and the second gear (7) are the same in size and tooth number.

3. A compact gear unit for a jacking mechanism according to claim 2, characterized in that The jacking device (9) comprises an intermediate sleeve (91), rotating blocks (93) are slidably arranged at both ends of the intermediate sleeve (91) respectively, the rotating blocks (93) are rotatably connected with the crank (10) through bearings, a first spring (92) is arranged in the intermediate sleeve (91) between the two rotating blocks (93), and the two ends of the first spring (92) are fixedly connected with the inner ends of the two rotating blocks (93) respectively, recesses are formed in the outer ends of the rotating blocks (93), and moving blocks (94) are slidably arranged in the recesses.

4. A compact gear unit for a jacking mechanism according to claim 3, characterized in that Elastic retaining rings (11) are arranged on the protruding portions of the crank (10) outside the rotating blocks (93).

5. The compact gear unit for a jacking mechanism according to claim 3, characterized by, The moving blocks (94) are uniformly provided with a plurality of rolling balls on the outer end faces.

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