Western village type double-gas-path slip shaft
By setting a side circumferential piston and an on-axis radial piston in the Nishimura-type double-air slip axis to make them operate simultaneously, the problems of limited tension adjustment range and slip ring slip in the prior art are solved, and a larger friction torque and a wider tension adjustment range are achieved.
Patent Information
- Application Number
- CN202421620962.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-10
AI Technical Summary
The existing Xicun-type double-air slip shaft tension adjustment range is limited, and the slip ring and barrel slip relative to the spindle are prone to slip.
By setting the side circumferential piston and the radial piston on the shaft to operate simultaneously, the friction torque between the spindle and the slip ring is increased, and the friction torque between the slip joint and the friction ring is increased, thereby expanding the tension adjustment range of the slip shaft.
The friction torque between the spindle and the slip ring is effectively increased, and the tension adjustment range of the slip shaft is expanded, avoiding the slip ring and the barrel slip relative to the spindle.
Smart Images
Figure CN222770400U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of slip differential shafts, in particular to a Nishimura type double-air-path slip differential shaft. Background Art
[0002] The existing Nishimura-type dual-gas-circuit slip shaft tension adjustment and friction torque increase are mainly achieved through the circumferential piston on the side of the slip ring and the radial piston on the main shaft. The two usually exist separately. The tension of the slip shaft on the barrel is small, and the slip ring and the barrel are prone to slip relative to the main shaft. If the two are combined, the friction torque between the shaft and the slip ring will be effectively increased, and the adjustment range of the slip shaft tension will be increased. In view of this, we propose a Nishimura-type dual-gas-circuit slip shaft. Utility Model Content
[0003] In order to make up for the above deficiencies, the utility model provides a Nishimura type dual-air path slip differential shaft.
[0004] The technical solution of the utility model is:
[0005] A Nishimura-type dual-air-path differential shaft comprises a main shaft located at a central position, an intermediate tensioning ring and a friction ring are sleeved on the main shaft, a right differential joint and a left differential joint are respectively arranged on the left and right sides of the intermediate tensioning ring, the intermediate tensioning ring, the friction ring and the differential joint form a group of differential rings, a plurality of radial pistons on the shaft are arranged inside the main shaft, a plurality of side circumferential pistons are arranged inside the friction ring, and a plurality of expansion plate pistons are arranged inside the intermediate tensioning ring.
[0006] Preferably, a first air path and a second air path parallel to each other are provided inside the main shaft. The first air path is a friction air path, which leads to air holes for supplying air to the friction ring and the slip joint respectively. The second air path is an expansion air path, which supplies air to the middle expansion ring.
[0007] Preferably, the right sliding differential joint includes two right bearing seats, two right bearings, a right oblique wedge seat and a plurality of right expansion plates.
[0008] Preferably, the two right bearing seats are both sleeved on the main shaft, and a right bearing is arranged between the right bearing seat located on the outside and the main shaft, the outer ring of the right bearing is fixed to the right bearing seat, and the inner ring is fixed to the main shaft, and a right bearing is also arranged between the right bearing seat located on the inside and the right bevel wedge seat, the outer ring of the right bearing is fixed to the right bevel wedge seat, and the inner ring is fixed to the right bearing seat, and a plurality of expansion plate grooves are provided on the surface of the right bevel wedge seat, and the right expansion plate is arranged in the expansion plate groove.
[0009] Preferably, the left sliding differential joint includes two left bearing seats, two left bearings, a left oblique wedge seat and a plurality of left expansion plates.
[0010] Preferably, the two left bearing seats are both sleeved on the main shaft, and a left bearing is arranged between the inner left bearing seat and the main shaft, the outer ring of the left bearing is fixed to the left bearing seat, and the inner ring is fixed to the main shaft, and a left bearing is also arranged between the outer left bearing seat and the left bevel wedge seat, the outer ring of the left bearing is fixed to the left bevel wedge seat, and the inner ring is fixed to the left bearing seat, and a plurality of expansion plate grooves are arranged on the surface of the left bevel wedge seat, and the left expansion plate is arranged in the expansion plate groove.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model provides a side circumferential piston and an on-shaft radial piston, and utilizes the side circumferential piston and the on-shaft radial piston to act simultaneously, which will effectively increase the friction torque between the main shaft and the differential ring, and increase the friction torque between the differential joint and the friction ring and the intermediate tensioning ring, thereby increasing the adjustment range of the differential shaft tension. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 It is a cross-sectional view of the utility model;
[0015] Figure 3 It is a front view of the utility model in a cutaway state;
[0016] Figure 4 It is an overall exploded view of the utility model.
[0017] In the figure:
[0018] Main shaft 1, right bearing seat 2, right bearing 3, right oblique wedge seat 4, right expansion plate 5, middle tensioning ring 6, left bearing seat 7, left bearing 8, left oblique wedge seat 9, left expansion plate 10, first air path 11, second air path 12, side circumferential piston 13, radial piston on shaft 14, radial piston airway on shaft 15, side circumferential piston airway 16, friction ring 17, expansion plate piston 18, expansion plate piston airway 19. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0021] See also Figure 1-4 The utility model describes the above technical solution in detail through the following embodiments:
[0022] A Nishimura-type dual-air-path differential shaft comprises a main shaft 1 located at a central position, an intermediate tension ring 6 and a friction ring 17 are sleeved on the main shaft 1, a right differential joint and a left differential joint are respectively arranged on the left and right sides of the intermediate tension ring 6, the intermediate tension ring 6, the friction ring 17 and the differential joint form a group of differential rings, a plurality of radial pistons 14 are arranged on the main shaft 1, a plurality of side circumferential pistons 13 are arranged in the friction ring 17, and a plurality of expansion pistons 18 are arranged in the intermediate tension ring 6.
[0023] Preferably, a first air path 11 and a second air path 12 are provided in parallel inside the main shaft 1. The first air path 11 is a friction air path, which leads to two air holes for supplying air to the friction ring 17 and the slip joint respectively. The second air path 12 is an expansion air path, which supplies air to the middle expansion ring 6.
[0024] It should be added that each expanding piston 18 is connected to the second air path 12 through the expanding piston air channel 19. The gas acts on the expanding piston 18 inside it, pushing the inclined wedge seat to move, and the expanding sheet rises along the inclined surface of the inclined wedge seat. The function of this gas path is to expand the sheet smoothly, thereby tightening the material tube.
[0025] It should be noted that the sheet expanding pistons 18 are distributed in a staggered manner, with the pushing ends of half of the sheet expanding pistons 18 aligned with the right oblique wedge seat 4, which can push the right oblique wedge seat 4 to move, thereby using the inclined surface of the right oblique wedge seat 4 to push the right expanding sheet 5 to rise, and the pushing ends of the other half of the sheet expanding pistons 18 aligned with the left oblique wedge seat 9, thereby using the inclined surface of the left oblique wedge seat 9 to push the left expanding sheet 10 to rise.
[0026] Preferably, the right sliding joint includes two right bearing seats 2, two right bearings 3, a right oblique wedge seat 4 and a plurality of right expansion plates 5.
[0027] Preferably, the two right bearing seats 2 are both sleeved on the main shaft 1, and a right bearing 3 is arranged between the right bearing seat 2 located on the outside and the main shaft 1, the outer ring of the right bearing 3 is fixed to the right bearing seat 2, and the inner ring is fixed to the main shaft 1, and a right bearing 3 is also arranged between the right bearing seat 2 located on the inside and the right bevel seat 4, the outer ring of the right bearing 3 is fixed to the right bevel seat 4, and the inner ring is fixed to the right bearing seat 2, and a plurality of expansion plate grooves are arranged on the surface of the right bevel seat 4, and the right expansion plate 5 is arranged in the expansion plate groove.
[0028] Preferably, the left sliding joint includes two left bearing seats 7, two left bearings 8, a left oblique wedge seat 9 and a plurality of left expansion plates 10.
[0029] Preferably, the two left bearing seats 7 are both sleeved on the main shaft 1, and a left bearing 8 is arranged between the inner left bearing seat 7 and the main shaft 1, the outer ring of the left bearing 8 is fixed to the left bearing seat 7, and the inner ring is fixed to the main shaft 1, and a left bearing 8 is also arranged between the outer left bearing seat 7 and the left bevel seat 9, the outer ring of the left bearing 8 is fixed to the left bevel seat 9, and the inner ring is fixed to the left bearing seat 7, and a plurality of expansion plate grooves are arranged on the surface of the left bevel seat 9, and a left expansion plate 10 is arranged in the expansion plate groove.
[0030] Preferably, the on-shaft radial pistons 14 are respectively distributed in the main shaft 1 , and the air outlet of each on-shaft radial piston 14 is connected to the first air path 11 through the on-shaft radial piston airway 15 .
[0031] It should be noted that the gas acts on the radial piston 14 on the shaft, thereby promoting the contact between the slip joint, the friction ring 17 and the intermediate tension ring 6 and increasing the friction torque therebetween.
[0032] Preferably, a friction ring 17 is provided on the side of the right and left differential joints away from the middle tensioning ring 6, and a plurality of side circumferential pistons 13 are arranged inside the friction ring 17, and the air outlets of the side circumferential pistons 13 are connected to the first air path 11 through the side circumferential piston airway 16.
[0033] It should be noted that the side circumferential pistons 13 are distributed in a staggered manner, with the pushing ends of half of the side circumferential pistons 13 aligned with the right slip joint, and the pushing ends of the other half of the side circumferential pistons 13 aligned with the left slip joint. The gas acts on the side circumferential pistons 13, thereby promoting the contact between the slip joint and the friction ring 17 and the middle tensioning ring 6 and increasing the friction torque between them.
[0034] Furthermore, the surfaces of the right expanding plate 5 and the left expanding plate 10 are provided with spring grooves, and the spring grooves are provided with return springs. The return springs can contact the material tube and can push the right expanding plate 5 and the left expanding plate 10 to automatically return to their original position in the absence of the force of the expanding piston 18.
[0035] When in use, the side circumferential piston 13 and the radial piston 14 on the shaft act simultaneously, which will effectively increase the friction torque between the main shaft 1 and the differential ring, and increase the friction torque between the differential joint and the friction ring 17 and the intermediate tension ring 6, thereby increasing the adjustment range of the differential shaft tension.
[0036] The side circumferential piston 13 on the friction ring 17 mainly provides the friction torque required by the differential ring to adjust the tension between the differential ring and the shaft. The expansion piston on the middle tensioning ring 6 mainly provides the lifting power for the expansion sheet. After the expansion sheet is raised, the barrel is tightened. The reset spring is mainly used to make the expansion sheet fall back and reset.
[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A Nishimura type dual air path differential shaft, comprising a main shaft (1) located at a central position, wherein an intermediate tension ring (6) and a friction ring (17) are sleeved on the main shaft (1), characterized in that: The left and right sides of the intermediate tension ring (6) are respectively provided with a right differential joint and a left differential joint. The intermediate tension ring (6), the friction ring (17) and the differential joint form a differential ring group. The main shaft (1) is provided with a plurality of radial pistons (14) on the shaft, the friction ring (17) is provided with a plurality of side circumferential pistons (13), and the intermediate tension ring (6) is provided with a plurality of expansion pistons (18).
2. The Nishimura type dual air path slip differential shaft according to claim 1, characterized in that: A first air path (11) and a second air path (12) are provided inside the main shaft (1), the first air path (11) being a friction air path, the first air path (11) leading to two air holes, respectively supplying air to the friction ring (17) and the slip joint, and the second air path (12) being an expansion air path, supplying air to the middle expansion ring 6.
3. The Nishimura type dual air path slip differential shaft according to claim 2, characterized in that: The right differential joint comprises two right bearing seats (2), two right bearings (3), a right oblique wedge seat (4) and a plurality of right expansion plates (5).
4. The Nishimura type dual air path slip differential shaft as claimed in claim 3, characterized in that: The two right bearing seats (2) are both sleeved on the main shaft (1), and a right bearing (3) is arranged between the right bearing seat (2) located on the outside and the main shaft (1). The outer ring of the right bearing (3) is fixed to the right bearing seat (2), and the inner ring is fixed to the main shaft (1). A right bearing (3) is also arranged between the right bearing seat (2) located on the inside and the right oblique wedge seat (4). The outer ring of the right bearing (3) is fixed to the right oblique wedge seat (4), and the inner ring is fixed to the right bearing seat (2). A plurality of expansion plate grooves are arranged on the surface of the right oblique wedge seat (4), and the right expansion plate (5) is arranged in the expansion plate groove.
5. The Nishimura type dual air path slip differential shaft according to claim 4, characterized in that: The left differential joint comprises two left bearing seats (7), two left bearings (8), a left oblique wedge seat (9) and a plurality of left expansion plates (10).
6. The Nishimura type dual air path slip differential shaft according to claim 5, characterized in that: The two left bearing seats (7) are both sleeved on the main shaft (1), and a left bearing (8) is arranged between the left bearing seat (7) located on the inner side and the main shaft (1). The outer ring of the left bearing (8) is fixed to the left bearing seat (7), and the inner ring is fixed to the main shaft (1). A left bearing (8) is also arranged between the left bearing seat (7) located on the outer side and the left oblique wedge seat (9). The outer ring of the left bearing (8) is fixed to the left oblique wedge seat (9), and the inner ring is fixed to the left bearing seat (7). A plurality of expansion plate grooves are arranged on the surface of the left oblique wedge seat (9), and the left expansion plate (10) is arranged in the expansion plate groove.