Passive driver strip placing device based on worm gear and worm

Abstract

The invention relates to a passive driver bar releasing device based on a worm gear and a worm, and belongs to the field of satellite passive driver assembly force releasing bar releasing. The strip placing handle is of a vertical rod-shaped structure; the worm wheel shaft and the worm shaft horizontally penetrate through the top end of the strip placing handle, and the worm shaft is perpendicular to the worm wheel shaft. Through holes are formed in the side walls of the two ends, corresponding to the worm-wheel shaft, of the strip placing handle correspondingly, and axial penetrating of the worm-wheel shaft is achieved; the outer wall of the worm wheel shaft is sequentially sleeved with the lubricating shaft sleeve, the worm wheel, the lubricating shaft sleeve and the shaft clamp spring; through holes are formed in the positions, corresponding to the side walls of the two ends of the worm shaft, of the strip placing handle correspondingly, and axial penetrating of the worm shaft is achieved. The lubricating shaft sleeve, the worm, the lubricating shaft sleeve and the shaft clamp spring are sequentially sleeved on the outer wall of the worm shaft; the worm gear and the worm are meshed and butted in an inner cavity of the strip placing handle; the transmission cabin cover plate covers the top of the strip placing handle; the problems of limited operation space and interference with products are avoided through the strip placing device, the reliability of the strip placing process is improved, and the strip placing process is simplified.

Description

Technical Field

[0001] The present invention belongs to the field of satellite passive driver assembly strip releasing, and relates to a strip releasing device for a passive driver based on a worm and worm gear. Background Art

[0002] The passive driver uses a clockwork spring as the power source. The strip shaft and the strip shaft gear are connected together through a strip releasing rod. The strip shaft gear drives the force increasing gear train and the timing gear train at the same time. The force increasing gear train amplifies the clockwork spring torque and transmits it to the strip releasing rod to complete the torque output. Currently, it is widely used in products such as satellite annular antenna deployment arms, feed source deployment arms, and antennas. During the assembly of the passive driver, single-unit experiments, and overall satellite experiments, two operators need to hold a special cross strip releasing tooling and rotate it along the axis of the input shaft of the passive driver several times to perform strip releasing operations on the passive driver. When the product enters the overall satellite assembly stage, due to the relatively complex installation positions of products such as on-board cables, cable brackets, arm rods, and simulation walls on the satellite, the cross strip releasing tooling often has limited operating space or interference with on-board products during use, making it impossible to perform strip releasing operations. At the same time, if the two operators do not cooperate properly, the spring strip releasing of the passive driver may get out of control, causing the cross strip releasing tooling to get out of the operator's control, resulting in an uncontrollable strip releasing process. The tooling falling off may damage on-board products, posing a certain safety hazard. Summary of the Invention

[0003] The technical problem solved by the present invention is: overcoming the deficiencies of the prior art, a strip releasing device for a passive driver based on a worm and worm gear is proposed. By using the strip releasing device, the problems of limited operating space and interference with products are avoided, the reliability of the strip releasing process is improved, and the strip releasing process is simplified.

[0004] The technical solution adopted by the present invention to solve the problem is:

[0005] A strip releasing device for a passive driver based on a worm and worm gear includes a strip releasing handle, a worm wheel shaft, a worm shaft, 4 lubricating bushings, a transmission cabin cover plate, a worm wheel, a worm, and 2 shaft snap rings;

[0006] Among them, the strip releasing handle is a vertical rod-shaped structure; the worm wheel shaft horizontally passes through the strip releasing handle from the top end of the strip releasing handle; the worm shaft horizontally passes through the strip releasing handle from the top end of the strip releasing handle; the worm shaft is located below the worm wheel shaft and is perpendicular to the worm wheel shaft; through holes are respectively provided on the side wall positions corresponding to the two ends of the strip releasing handle for the worm wheel shaft to axially pass through; the lubricating bushings, the worm wheel, the lubricating bushings, and the shaft snap ring are sequentially sleeved on the outer wall of the worm wheel shaft; through holes are respectively provided on the side wall positions corresponding to the two ends of the strip releasing handle for the worm shaft to axially pass through; the lubricating bushings, the worm, the lubricating bushings, and the shaft snap ring are sequentially sleeved on the outer wall of the worm shaft; the worm wheel and the worm are meshed and butted in the inner cavity of the strip releasing handle; the transmission cabin cover plate is covered on the top of the strip releasing handle to achieve sealing.

[0007] In the above-mentioned strip feeding device of a passive driver based on a worm and worm gear, the strip feeding handle is divided into a hand-held section and a transmission cabin section;

[0008] Among them, the hand-held section is a rod-shaped structure vertically placed axially; the transmission cabin section is a hollow cuboid structure; the transmission cabin section is coaxially and vertically installed at the top of the hand-held section.

[0009] In the above-mentioned strip feeding device of a passive driver based on a worm and worm gear, worm shaft mounting holes are respectively arranged on two opposite side walls of the hand-held section to enable the horizontal passing of the worm shaft; worm gear shaft mounting holes are respectively arranged on the other two opposite side walls of the hand-held section to enable the horizontal passing of the worm gear shaft.

[0010] In the above-mentioned strip feeding device of a passive driver based on a worm and worm gear, the lubricating bushing is a stepped hole sleeve structure with a T-shaped cross-section; a round hole is arranged at the center of the lubricating bushing, and it is sleeved on the corresponding worm shaft and worm gear shaft through the round hole at the center; the small-diameter shaft section of the stepped outer circle of the T-shaped lubricating bushing is embedded in the corresponding worm shaft mounting hole and worm gear shaft mounting hole.

[0011] In the above-mentioned strip feeding device of a passive driver based on a worm and worm gear, the worm shaft includes a smooth rod section, a threaded section and a limiting boss;

[0012] Among them, the smooth rod section and the threaded section are horizontally and coaxially butted; the limiting boss is arranged at the outer axial end of the threaded section; the smooth rod section passes through the two worm shaft mounting holes; a worm shaft circlip groove is arranged at the outer axial end of the smooth rod section.

[0013] In the above-mentioned strip feeding device of a passive driver based on a worm and worm gear, the shaft circlip corresponding to the worm shaft is embedded in the worm shaft circlip groove.

[0014] In the above-mentioned strip feeding device of a passive driver based on a worm and worm gear, the worm gear shaft includes a rotating shaft section and a follower shaft section;

[0015] Among them, the rotating shaft section and the follower shaft section are horizontally and coaxially butted; a hexagonal groove is arranged on the outer axial end face of the rotating shaft section; the follower shaft section passes through the two worm gear shaft mounting holes; a worm gear shaft circlip groove is arranged at the outer axial end of the follower shaft section.

[0016] In the above-mentioned strip feeding device of a passive driver based on a worm and worm gear, the shaft circlip corresponding to the worm gear shaft is embedded in the worm gear shaft circlip groove.

[0017] In the above-mentioned strip feeding device of a passive driver based on a worm and worm gear, by inserting the limiting boss into the groove at the end of the input shaft of the external passive driver and rotating the anti-loosening nut in the reverse direction, a reliable connection between the worm shaft and the input shaft of the external passive driver is achieved, and the connection between the strip feeding device and the passive driver is completed.

[0018] In the above-mentioned passive drive strip-releasing device based on worm gear, the working process of the strip-releasing device is as follows:

[0019] In the hand-held section, the input shaft of the external passive driver is locked under the action of the worm wheel and the worm; the worm shaft is rotated according to the strip-releasing requirements of the external passive driver to perform the strip-releasing operation; during the strip-releasing process, the strip-releasing operation is stopped by stopping the rotation of the worm shaft, and the strip-releasing speed is adjusted by adjusting the rotation speed of the worm shaft;

[0020] When releasing the strip, if the operating space for rotating the worm shaft is limited, insert the hexagonal wrench into the hexagonal groove at the end of the worm shaft, and realize the strip releasing operation by rotating the hexagonal wrench;

[0021] After the strip is released, the anti-dropping nut is rotated to disengage the worm gear shaft from the external passive drive input shaft, and the anti-dropping nut is unscrewed from under the worm gear shaft to complete the entire strip release process.

[0022] The beneficial effects of the present invention compared with the prior art are:

[0023] (1) The present invention uses a passive drive strip-releasing device based on a worm gear. By virtue of the positional relationship of the staggered vertical transmission arrangement of the worm gear and the worm gear, the strip-releasing process is realized by rotating the worm shaft, thereby avoiding the problem of limited rotation of the cross-cross tooling in a large space or interference with the on-board product during on-board operation;

[0024] (2) The present invention utilizes the self-locking and labor-saving characteristics of the worm gear. After the strip-releasing device is reliably connected to the passive driver of the product, the coil spring of the passive driver is locked under the self-locking of the worm gear and cannot release force autonomously. Moreover, after the worm gear is driven, the rotation torque of the strip-releasing device is reduced.

[0025] (3) When releasing the strip, the present invention only requires one operator to hold the handle with one hand to ensure that the input shaft of the passive driver does not rotate, and the other hand to rotate the worm shaft to easily realize the strip release operation, and the strip release speed can be accurately controlled according to the deceleration characteristics of the worm gear. This simplifies the operation process, improves the operation efficiency, and enhances the safety and reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an overall schematic diagram of the passive driver strip placing device of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the strip handle of the present invention;

[0028] Figure 3 It is an exploded view of the passive driver strip placing device of the present invention;

[0029] Figure 4 This is a schematic diagram of the worm gear shaft structure of the present invention;

[0030] Figure 5 Schematic diagram of the worm shaft structure of the present invention;

[0031] Figure 6 Schematic diagram of the lubricating bushing structure of the present invention. Specific embodiments

[0032] The present invention will be further described below in conjunction with embodiments.

[0033] The present invention provides a strip feeding device for a passive driver based on a worm and worm gear, which avoids the problems of limited operating space and interference with products through the strip feeding device, improves the reliability of the strip feeding process, and simplifies the strip feeding process.

[0034] The strip feeding device for a passive driver based on a worm and worm gear, as Figure 1 , Figure 2 shown, specifically includes a strip feeding handle 1, a worm gear shaft 2, a worm shaft 3, 4 lubricating bushings 4, a transmission chamber cover plate 5, a worm gear 6, a worm 7, and 2 shaft retaining rings 8. Among them, the strip feeding handle 1 is a vertical rod-shaped structure; the worm gear shaft 2 horizontally passes through the strip feeding handle 1 from the top end of the strip feeding handle 1; the worm shaft 3 horizontally passes through the strip feeding handle 1 from the top end of the strip feeding handle 1; the worm shaft 3 is located below the worm gear shaft 2 and is perpendicular to the worm gear shaft 2; through holes are respectively provided at the side wall positions corresponding to the two ends of the strip feeding handle 1 for the worm gear shaft 2 to axially pass through; the lubricating bushings 4, the worm gear 6, the lubricating bushings 4, and the shaft retaining rings 8 are sequentially sleeved on the outer wall of the worm gear shaft 2; through holes are respectively provided at the side wall positions corresponding to the two ends of the strip feeding handle 1 for the worm shaft 3 to axially pass through; the lubricating bushings 4, the worm 7, the lubricating bushings 4, and the shaft retaining rings 8 are sequentially sleeved on the outer wall of the worm shaft 3; the worm gear 6 and the worm 7 are meshed and butted in the inner cavity of the strip feeding handle 1; the transmission chamber cover plate 5 is covered on the top of the strip feeding handle 1 to achieve sealing.

[0035] As Figure 3 shown, the strip feeding handle 1 is divided into a hand-held section 11 and a transmission chamber section 12; among them, the hand-held section 11 is a rod-shaped structure vertically placed axially; the transmission chamber section 12 is a hollow cuboid structure; the transmission chamber section 12 is coaxially and vertically installed on the top of the hand-held section 11.

[0036] Among them, worm gear shaft mounting holes 121 are respectively provided on the opposite two side walls of the hand-held section 11 to enable the horizontal passing of the worm gear shaft 2; worm shaft mounting holes 122 are respectively provided on the other opposite two side walls of the hand-held section 11 to enable the horizontal passing of the worm shaft 3.

[0037] As Figure 6As shown in the figure, the lubricating bushing 4 has a stepped hole sleeve structure with a T-shaped cross-section; a circular hole is provided at the center of the lubricating bushing 4, and it is sleeved on the corresponding worm shaft 2 and worm gear shaft 3 through the circular hole at the center; the small-diameter shaft section of the stepped outer circle of the T-shaped lubricating bushing 4 is embedded in the corresponding worm shaft mounting hole 121 and worm gear shaft mounting hole 122.

[0038] As Figure 4 shown, the worm shaft 2 includes a smooth shaft section 24, a threaded section 22 and a limit boss 21; among them, the smooth shaft section 24 and the threaded section 22 are horizontally coaxially butted; the limit boss 21 is arranged at the outer axial end of the threaded section 22; the smooth shaft section 24 passes through from two worm shaft mounting holes 121; a worm shaft circlip groove 23 is arranged at the outer axial end of the smooth shaft section 24. The corresponding shaft circlip 8 of the worm shaft 2 is embedded in the worm shaft circlip groove 23.

[0039] As Figure 5 shown, the worm gear shaft 3 includes a rotating shaft section 32 and a follower shaft section 34; among them, the rotating shaft section 32 and the follower shaft section 34 are horizontally coaxially butted; a hexagonal groove 31 is arranged on the outer axial end face of the rotating shaft section 32; the follower shaft section 34 passes through from two worm gear shaft mounting holes 122; a worm gear shaft circlip groove 33 is arranged at the outer axial end of the follower shaft section 34. The corresponding shaft circlip 8 of the worm gear shaft 3 is embedded in the worm gear shaft circlip groove 33.

[0040] By inserting the limit boss 21 into the groove at the end of the input shaft of the external passive driver and rotating the anti-loosening nut in the reverse direction, the reliable connection between the worm shaft 2 and the input shaft of the external passive driver is achieved, and the connection between the strip feeding device and the passive driver is completed.

[0041] The strip feeding handle is divided into a hand-held section and a transmission cabin section; worm shaft mounting holes and worm gear shaft mounting holes are arranged on the transmission cabin section; the worm gear is arranged on the worm shaft, and the worm is arranged on the worm gear shaft; the worm shaft and the worm gear shaft are cross-arranged in the mounting holes of the strip feeding handle transmission cabin; the lubricating bushing is a T-shaped stepped hole sleeve, with a circular hole provided at the center, and is arranged on the worm shaft and the worm gear shaft through the central circular hole, and the small-diameter part of the stepped outer circle is arranged in the mounting holes of the strip feeding handle transmission cabin; the transmission cabin cover plate is arranged on the strip feeding handle transmission cabin; the shaft circlip is arranged in the worm shaft circlip groove and the worm gear shaft circlip groove.

[0042] Preferably, the worm shaft is provided with a threaded section on the outside of the transmission cabin.

[0043] Preferably, the worm shaft is provided with a limit boss at the end of the threaded section.

[0044] Preferably, the worm gear shaft is provided with a rotating shaft section on the outside of the transmission cabin.

[0045] Preferably, the worm gear shaft is provided with a hexagonal groove at the end of the rotating shaft section.

[0046] The working process of the strip feeding device is as follows:

[0047] Holding the holding section 11, the input shaft of the external passive driver is locked under the action of the worm wheel 6 and the worm 7; the worm shaft 3 is rotated according to the strip releasing requirements of the external passive driver to perform the strip releasing operation; during the strip releasing process, the strip releasing operation is stopped by stopping the rotation of the worm shaft 3, and the strip releasing speed is adjusted by adjusting the rotation speed of the worm shaft 3.

[0048] When releasing the strip, when the operating space for rotating the worm shaft 3 is limited, a hexagonal wrench is inserted into the hexagonal groove 31 at the end of the worm shaft 3, and the strip releasing operation is achieved by rotating the hexagonal wrench.

[0049] After the strip is released, the anti-dropping nut is rotated to disengage the worm gear shaft 2 from the external passive drive input shaft, and the anti-dropping nut is unscrewed from the worm gear shaft 2 to complete the entire strip release process.

[0050] The present invention uses a passive drive strip-releasing device based on a worm gear. With the help of the positional relationship of the worm gear and the worm gear in staggered vertical transmission arrangement, the strip-releasing process is realized by rotating the worm shaft, thereby avoiding the problem of limited rotation of the cross-cross tooling in a large space or interference with the on-board product during on-board operation. By utilizing the self-locking and labor-saving characteristics of the worm gear, after the strip-releasing device is reliably connected to the passive drive of the product, the coil spring of the passive drive is locked under the self-locking of the worm gear and cannot release force autonomously, and after the worm gear is driven, the strip-releasing rotation torque is reduced. When releasing the strip, an operator only needs to hold the handle with one hand to ensure that the input shaft of the passive drive does not rotate, and the other hand can rotate the worm shaft to easily realize the strip-releasing operation, and the strip-releasing speed can be accurately controlled according to the deceleration characteristics of the worm gear. The operation process is simplified, the operation efficiency is improved, and the safety and reliability of the product are improved.

[0051] Although the present invention has been disclosed as above in the form of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A strip feeding device of a passive driver based on a worm and worm gear, characterized in that: It includes a strip discharging handle (1), a worm gear shaft (2), a worm shaft (3), 4 lubricating bushings (4), a transmission cabin cover plate (5), a worm gear (6), a worm (7), and 2 shaft circlips (8); Among them, the strip discharging handle (1) is a vertically rod-shaped structure; the worm gear shaft (2) horizontally passes through the strip discharging handle (1) from the top end of the strip discharging handle (1); the worm shaft (3) horizontally passes through the strip discharging handle (1) from the top end of the strip discharging handle (1); the worm shaft (3) is located below the worm gear shaft (2), and the worm shaft (3) is perpendicular to the worm gear shaft (2); through holes are respectively arranged at the side wall positions corresponding to the two ends of the strip discharging handle (1) for the worm gear shaft (2) to axially pass through; the lubricating bushings (4), the worm gear (6), the lubricating bushings (4), and the shaft circlips (8) are sequentially sleeved on the outer wall of the worm gear shaft (2); through holes are respectively arranged at the side wall positions corresponding to the two ends of the strip discharging handle (1) for the worm shaft (3) to axially pass through; the lubricating bushings (4), the worm (7), the lubricating bushings (4), and the shaft circlips (8) are sequentially sleeved on the outer wall of the worm shaft (3); the worm gear (6) and the worm (7) are meshed and butted in the inner cavity of the strip discharging handle (1); the transmission cabin cover plate (5) is covered on the top of the strip discharging handle (1) to achieve sealing.

2. The strip feeding device of a passive driver based on a worm and worm gear according to claim 1, characterized in that: The strip discharging handle (1) is divided into a hand-held section (11) and a transmission cabin section (12); Among them, the hand-held section (11) is a rod-shaped structure vertically placed axially; the transmission cabin section (12) is a hollow cuboid structure; the transmission cabin section (12) is coaxially and vertically installed on the top of the hand-held section (11).

3. The unwinding device of a passive driver based on a worm and worm gear according to claim 2, characterized in that: Worm gear shaft mounting holes (121) are respectively arranged on the opposite two side walls of the hand-held section (11) to enable the horizontal passing of the worm gear shaft (2); worm shaft mounting holes (122) are respectively arranged on the other opposite two side walls of the hand-held section (11) to enable the horizontal passing of the worm shaft (3).

4. The unwinding device of a passive driver based on a worm and worm gear according to claim 3, characterized in that: The lubricating bushing (4) is a stepped hole sleeve structure with a T-shaped cross-section; a round hole is arranged at the center of the lubricating bushing (4), and it is sleeved on the corresponding worm gear shaft (2) and worm shaft (3) through the round hole at the center; the small-diameter shaft section of the stepped outer circle of the T-shaped lubricating bushing (4) is embedded in the corresponding worm gear shaft mounting hole (121) and worm shaft mounting hole (122).

5. The unwinding device of a passive driver based on a worm and worm gear according to claim 3, characterized in that: The worm gear shaft (2) includes a smooth rod section (24), a threaded section (22), and a limiting boss (21); Among them, the smooth rod section (24) and the threaded section (22) are horizontally and coaxially butted; the limiting boss (21) is arranged at the outer axial end of the threaded section (22); the smooth rod section (24) passes through the two worm gear shaft mounting holes (121); a worm gear shaft circlip groove (23) is arranged at the outer axial end of the smooth rod section (24).

6. The unwinding device of a passive driver based on a worm and worm gear according to claim 5, characterized in that: The corresponding shaft circlip (8) of the worm gear shaft (2) is embedded in the worm gear shaft circlip groove (23).

7. The strip feeding device of a passive driver based on a worm and worm gear according to claim 6, characterized in that: The worm shaft (3) includes a rotating shaft section (32) and a follower shaft section (34); The rotating shaft section (32) and the follower shaft section (34) are horizontally coaxially butted; the axial outer end surface of the rotating shaft section (32) is provided with a hexagonal groove (31); the follower shaft section (34) is passed through two worm shaft mounting holes (122); and the axial outer end of the follower shaft section (34) is provided with a worm shaft retaining spring groove (33).

8. A strip feeding device of a passive driver based on a worm and worm gear according to claim 7, characterized in that: The shaft retaining spring (8) corresponding to the worm shaft (3) is embedded in the worm shaft retaining spring groove (33).

9. The strip feeding device of a passive driver based on a worm and worm gear according to claim 8, characterized in that: By inserting the limiting boss (21) into the groove at the end of the input shaft of the external passive driver and rotating the anti-dropping nut in the opposite direction, the worm gear shaft (2) is reliably connected to the input shaft of the external passive driver, thereby completing the connection between the strip-releasing device and the passive driver.

10. A strip feeding device of a passive driver based on a worm and worm gear according to claim 9, characterized in that: The working process of the strip placing device is: The hand-held section (11) is held, and the input shaft of the external passive drive is locked under the action of the worm wheel (6) and the worm (7); the worm shaft (3) is rotated according to the strip release requirement of the external passive drive to perform the strip release operation; during the strip release process, the strip release operation is stopped by stopping the rotation of the worm shaft (3), and the strip release speed is adjusted by adjusting the rotation speed of the worm shaft (3); When releasing the strip, when the operating space for rotating the worm shaft (3) is limited, a hexagonal wrench is inserted into the hexagonal groove (31) at the end of the worm shaft (3), and the strip releasing operation is achieved by rotating the hexagonal wrench; After the strip is released, the anti-dropping nut is rotated to disengage the worm gear shaft (2) from the input shaft of the external passive drive, and the anti-dropping nut is unscrewed from the worm gear shaft (2) to complete the entire strip release process.

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