CN204716961U - The auxiliary box cylinder assembly of a kind of high gear side band spring - Google Patents

The auxiliary box cylinder assembly of a kind of high gear side band spring Download PDF

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CN204716961U
CN204716961U CN201520266325.4U CN201520266325U CN204716961U CN 204716961 U CN204716961 U CN 204716961U CN 201520266325 U CN201520266325 U CN 201520266325U CN 204716961 U CN204716961 U CN 204716961U
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spring
cylinder
auxiliary box
high gear
cylinder block
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魏小强
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Shaanxi Fast Gear Co Ltd
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Shaanxi Fast Gear Co Ltd
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Abstract

本实用新型公开了一种高挡侧带弹簧的副箱气缸总成,包括气缸体,在气缸体内部,拨叉轴和活塞通过六角尼龙圈锁紧薄螺母连接,气缸体的端部固定有副箱换挡气缸盖,气缸体的侧壁上设有与拨叉轴上的换挡结构配合的锁挡结构,气缸体的高挡侧内壁上开设有与拨叉轴同轴的圆环状凹槽,圆环状凹槽中设置弹簧,弹簧的自由高度大于圆环状凹槽的深度。本实用新型可以避免O型密封圈损坏而产生漏气,同时利于保护副箱同步器和高挡齿轮,很大程度上也可以降低副箱高挡锥环碳布脱落现象的发生。

The utility model discloses an auxiliary box cylinder assembly with a spring on the high gear side, which includes a cylinder body. Inside the cylinder body, a shift fork shaft and a piston are connected by a hexagonal nylon ring locking thin nut, and the end of the cylinder body is fixed with a The auxiliary box shifts the cylinder head. The side wall of the cylinder block is provided with a locking structure that matches the shifting structure on the shift fork shaft. The inner wall of the high gear side of the cylinder block is provided with a ring-shaped In the groove, a spring is arranged in the annular groove, and the free height of the spring is greater than the depth of the annular groove. The utility model can avoid air leakage caused by the damage of the O-shaped sealing ring, and at the same time, it is beneficial to protect the synchronizer of the auxiliary box and the high-speed gear, and can largely reduce the occurrence of the carbon cloth shedding of the high-speed cone ring of the auxiliary box.

Description

一种高挡侧带弹簧的副箱气缸总成An auxiliary box cylinder assembly with a spring on the high gear side

技术领域technical field

本实用新型涉及一种副箱气缸,具体涉及一种高挡侧带弹簧的副箱气缸总成。The utility model relates to an auxiliary box cylinder, in particular to an auxiliary box cylinder assembly with a spring on the high gear side.

背景技术Background technique

目前副箱锁销式单锥同步器存在高挡锥环碳纤维摩擦材料容易脱落和磨损问题,从理论上分析,由于低挡同步惯量是高挡同步惯量的副箱速比的平方倍,而高挡转速差是低挡转速差的副箱速比倍,假设副箱速比是4,那么低挡同步惯量是高挡同步惯量的16倍,高挡转速差是低挡转速差的4倍,副箱锁销式单锥同步器存在低挡同步时间是高挡同步器的3~3.6倍,而单位面积平均功率高挡侧是低挡侧的5倍多。由于高挡侧同步器摩擦环锥面在很短时间内产生较大的热,同步时间不足0.1s,而且碳纤维材料一般是通过环氧树脂胶粘接到粉末冶金基体表面,所以短时间内产生的大量热会使锥面温度上升很快,甚至造成胶失去粘接性能,从而造成碳布脱落的发生。At present, the locking pin type single-cone synchronizer of the auxiliary box has the problem that the carbon fiber friction material of the high-speed cone ring is easy to fall off and wear. The gear speed difference is the sub-box speed ratio times of the low gear speed difference. Assuming that the sub-box speed ratio is 4, the low gear synchronous inertia is 16 times the high gear synchronous inertia, and the high gear speed difference is 4 times the low gear speed difference. The lock-pin type single-cone synchronizer of the auxiliary box has a low gear synchronization time that is 3 to 3.6 times that of a high gear synchronizer, and the average power per unit area of the high gear side is more than 5 times that of the low gear side. Because the conical surface of the friction ring of the high-speed synchronizer generates a lot of heat in a short period of time, the synchronization time is less than 0.1s, and the carbon fiber material is generally bonded to the surface of the powder metallurgy substrate by epoxy resin, so the heat generated in a short period of time A large amount of heat will cause the temperature of the cone surface to rise rapidly, and even cause the glue to lose its bonding performance, which will cause the carbon cloth to fall off.

实用新型内容Utility model content

本实用新型的目的在于提供一种高挡侧带弹簧的副箱气缸总成,以克服上述现有技术存在的缺陷,本实用新型可以避免O型密封圈损坏而产生漏气,同时利于保护副箱同步器和高挡齿轮,很大程度上也可以降低副箱高挡锥环碳布脱落现象的发生。The purpose of this utility model is to provide an auxiliary box cylinder assembly with a spring on the high gear side, so as to overcome the above-mentioned defects in the prior art. The box synchronizer and high-speed gear can also reduce the occurrence of the carbon cloth shedding of the high-speed cone ring of the auxiliary box to a large extent.

为达到上述目的,本实用新型采用如下技术方案:In order to achieve the above object, the utility model adopts the following technical solutions:

一种高挡侧带弹簧的副箱气缸总成,包括气缸体,在气缸体内部,拨叉轴和活塞通过六角尼龙圈锁紧薄螺母连接,气缸体的端部固定有副箱换挡气缸盖,气缸体的高挡侧内壁上开设有与拨叉轴同轴的圆环状凹槽,圆环状凹槽中设置弹簧,弹簧的自由高度大于圆环状凹槽的深度。An auxiliary box cylinder assembly with a spring on the high gear side, including a cylinder block, inside the cylinder block, the shift fork shaft and the piston are connected by a hexagonal nylon ring locking thin nut, and the end of the cylinder block is fixed with an auxiliary box shift cylinder On the cover, the inner wall of the high gear side of the cylinder block is provided with an annular groove coaxial with the shift fork shaft, and a spring is arranged in the annular groove, and the free height of the spring is greater than the depth of the annular groove.

进一步地,弹簧的自由高度为:处于空挡时,圆环状凹槽的底部与活塞之间的距离。Further, the free height of the spring is: the distance between the bottom of the annular groove and the piston when in neutral.

进一步地,副箱换挡气缸盖通过六角头螺栓和弹簧垫圈组合件及气缸盖密封垫固定在气缸体的端部。Further, the shifting cylinder head of the auxiliary box is fixed on the end of the cylinder block through the assembly of hexagon head bolts and spring washers and the cylinder head gasket.

进一步地,气缸体的侧壁上设有与拨叉轴上的换挡结构配合的锁挡结构,锁挡结构包括穿插设置在气缸体侧壁的螺塞,设在螺塞中的定位弹簧以及设在定位弹簧端部的钢球。Further, the side wall of the cylinder block is provided with a locking structure that cooperates with the shifting structure on the shift fork shaft. The locking structure includes a screw plug inserted through the side wall of the cylinder block, a positioning spring set in the screw plug and A steel ball located at the end of a positioning spring.

进一步地,拨叉轴与气缸体的内壁之间、活塞与气缸体的内壁之间以及拨叉轴与活塞之间分别设有第一密封圈、第二密封圈和第三密封圈。Further, a first sealing ring, a second sealing ring and a third sealing ring are respectively provided between the fork shaft and the inner wall of the cylinder block, between the piston and the inner wall of the cylinder block, and between the fork shaft and the piston.

进一步地,第一密封圈、第二密封圈和第三密封圈均为O型密封圈。Further, the first sealing ring, the second sealing ring and the third sealing ring are all O-rings.

进一步地,副箱换挡气缸盖上设有六角头螺塞,六角头螺塞与副箱换挡气缸盖之间设有褶皱铜垫圈。Further, a hexagon head screw plug is provided on the shift cylinder head of the auxiliary box, and a corrugated copper gasket is arranged between the hexagon head screw plug and the shift cylinder head of the auxiliary box.

与现有技术相比,本实用新型具有以下有益的技术效果:Compared with the prior art, the utility model has the following beneficial technical effects:

本实用新型从低挡往高挡挂挡时,活塞带动拨叉轴向高挡侧移动,当活塞到达空挡位置后便与弹簧接触,此时弹簧逐渐被压缩并产生一定压缩力减缓活塞的轴向移动速度,同时减少滑套轴向作用合力,从而降低了同步器锁止面上的轴向力,这样可以适当延长同步时间,降低同步器摩擦环锥面单位面积上的功率,从而降低摩擦面产生的热量,降低同步器摩擦材料磨损和脱落发生的风险。当同步完成时,活塞在气压的作用下进一步克服弹簧的阻力挂入高挡,从而避免了挂高挡时同步器锥环摩擦热急剧产生造成锥面温度快速上升的现象,保证了同步器摩擦材料在同步时不会快速脱落。When the utility model shifts from a low gear to a high gear, the piston drives the shift fork to move axially to the high gear side, and when the piston reaches the neutral position, it contacts the spring. At this time, the spring is gradually compressed and generates a certain compression force to slow down the shaft of the piston. At the same time, the resultant axial force of the sliding sleeve is reduced, thereby reducing the axial force on the locking surface of the synchronizer, which can properly prolong the synchronization time, reduce the power per unit area of the cone surface of the friction ring of the synchronizer, and thereby reduce the friction Reduces the risk of wear and shedding of the synchronizer friction material due to the heat generated by the surface. When the synchronization is completed, the piston further overcomes the resistance of the spring under the action of the air pressure and puts into the high gear, thereby avoiding the phenomenon that the temperature of the cone surface rises rapidly due to the rapid generation of frictional heat of the synchronizer cone ring when the high gear is engaged, and ensures the friction of the synchronizer. Material does not come off quickly when synchronizing.

同时,本实用新型可以降低活塞对气缸壁的冲击,避免拨叉轴表面以及与拨叉轴接触的气缸壁表面拉伤产生划痕造成的O型密封圈损坏从而产生漏气的现象,同时也可以降低拨叉对滑套的冲击以及滑套对锁止销锁止面的冲击,还可以降低滑套对高挡齿轮花键齿的冲击,利于保护副箱同步器和高挡齿轮。At the same time, the utility model can reduce the impact of the piston on the cylinder wall, and avoid the O-ring damage caused by scratches on the surface of the shift fork shaft and the surface of the cylinder wall in contact with the shift fork shaft to cause air leakage. It can reduce the impact of the shift fork on the sliding sleeve and the impact of the sliding sleeve on the locking surface of the locking pin, and can also reduce the impact of the sliding sleeve on the spline teeth of the high-speed gear, which is beneficial to protect the auxiliary box synchronizer and the high-speed gear.

附图说明Description of drawings

图1为现有副箱气缸总成结构示意图;Fig. 1 is the structural schematic diagram of existing auxiliary box cylinder assembly;

图2为本实用新型的整体结构二维示意图;Fig. 2 is a two-dimensional schematic diagram of the overall structure of the utility model;

图3为本实用新型的气缸体正视图;Fig. 3 is a front view of the cylinder block of the present utility model;

图4为本实用新型的气缸体侧视图;Fig. 4 is a side view of the cylinder block of the present utility model;

图5为本实用新型的气缸体剖视图;Fig. 5 is a sectional view of the cylinder block of the present utility model;

图6为本实用新型的弹簧示意图;Fig. 6 is a spring schematic diagram of the present utility model;

图7为本实用新型的整体结构三维示意图。Fig. 7 is a three-dimensional schematic diagram of the overall structure of the utility model.

其中,1、气缸体;2、活塞;3、副箱换挡气缸盖;4、拨叉轴;5、第一密封圈;6、第二密封圈;7、第三密封圈;8、气缸盖密封垫;9、六角头螺栓和弹簧垫圈组合件;10、六角尼龙圈锁紧薄螺母;11、六角头螺塞;12、褶皱铜垫圈;13、标识牌;14、定位弹簧;15、螺塞;16、钢球;17、弹簧。Among them, 1. Cylinder block; 2. Piston; 3. Auxiliary box shift cylinder head; 4. Fork shaft; 5. First sealing ring; 6. Second sealing ring; 7. Third sealing ring; 8. Cylinder Cover gasket; 9. Hexagon head bolt and spring washer assembly; 10. Hexagon nylon ring lock thin nut; 11. Hexagon head screw plug; 12. Wrinkled copper washer; 13. Identification plate; 14. Positioning spring; 15. Screw plug; 16, steel ball; 17, spring.

具体实施方式Detailed ways

下面结合附图对本实用新型作进一步详细描述:Below in conjunction with accompanying drawing, the utility model is described in further detail:

参见图2至图7,一种高挡侧带弹簧的副箱气缸总成,包括气缸体1,在气缸体1内部,拨叉轴4和活塞2通过六角尼龙圈锁紧薄螺母10连接,气缸体1的端部通过六角头螺栓和弹簧垫圈组合件9及气缸盖密封垫8固定有副箱换挡气缸盖3,副箱换挡气缸盖3上设有六角头螺塞11,六角头螺塞11与副箱换挡气缸盖3之间设有褶皱铜垫圈12,气缸体1的侧壁上设有与拨叉轴4上的换挡结构配合的锁挡结构(对于挂完高挡后高挡气管仍然有气压的气缸,弹簧17的作用力较小不会造成掉挡现象的发生,可以没有锁挡结构),锁挡结构包括穿插设置在气缸体1侧壁的螺塞15,设在螺塞15中的定位弹簧14以及设在定位弹簧14端部的钢球16,气缸体1的高挡侧内壁上开设有与拨叉轴4同轴的圆环状凹槽,圆环状凹槽中设置弹簧17,弹簧17的自由高度为:处于空挡时,圆环状凹槽的底部与活塞2之间的距离,气缸体1的外壁上还设有用于显示其型号等信息的标识牌13。Referring to Fig. 2 to Fig. 7, an auxiliary box cylinder assembly with a spring on the high gear side includes a cylinder block 1, inside the cylinder block 1, the shift fork shaft 4 and the piston 2 are connected by a hexagonal nylon ring locking thin nut 10, The end of the cylinder block 1 is fixed with the auxiliary box shifting cylinder head 3 through the hexagon head bolt and spring washer assembly 9 and the cylinder head gasket 8, and the auxiliary box shifting cylinder head 3 is provided with a hexagon head screw plug 11, a hexagon head A corrugated copper washer 12 is provided between the screw plug 11 and the shift cylinder head 3 of the auxiliary box, and the side wall of the cylinder block 1 is provided with a locking structure that cooperates with the shifting structure on the shift fork shaft 4 (for high There is still an air pressure cylinder in the rear high gear trachea, and the force of the spring 17 is small so that the shifting phenomenon will not occur, and there may be no locking structure). The positioning spring 14 located in the screw plug 15 and the steel ball 16 located at the end of the positioning spring 14, the inner wall of the high block side of the cylinder block 1 is provided with a circular groove coaxial with the shift fork shaft 4, and the circular ring A spring 17 is arranged in the circular groove, and the free height of the spring 17 is: when in neutral, the distance between the bottom of the annular groove and the piston 2, and the outer wall of the cylinder block 1 is also provided with information for displaying its model. Identification plate13.

拨叉轴4与气缸体1的内壁之间、活塞2与气缸体1的内壁之间以及拨叉轴4与活塞2之间分别设有第一密封圈5、第二密封圈6和第三密封圈7,所述的第一密封圈5、第二密封圈6和第三密封圈7均为O型密封圈。Between the shift fork shaft 4 and the inner wall of the cylinder block 1, between the piston 2 and the inner wall of the cylinder block 1, and between the shift fork shaft 4 and the piston 2, a first sealing ring 5, a second sealing ring 6 and a third sealing ring are arranged respectively. The sealing ring 7, the first sealing ring 5, the second sealing ring 6 and the third sealing ring 7 are all O-rings.

下面对本实用新型的实施过程作进一步详细说明:The implementation process of the present utility model is described in further detail below:

本实用新型的副箱气缸是在普通气缸(如图1所示)的基础上增加一种圆柱螺旋弹簧,在气缸体靠近高挡一侧开设圆环状凹槽,将此弹簧17装在圆环状凹槽中,且弹簧17有一定的高度,副箱由低挡切换高挡时气压会推动活塞2往高挡移动,在经过空挡位置后继续移动,活塞2的端面会接触到弹簧17,此时随着活塞2的移动弹簧17的压缩量逐渐变大而产生一定的轴向力,此力与气压作用力方向相反。The auxiliary box cylinder of the utility model adds a cylindrical helical spring on the basis of a common cylinder (as shown in Figure 1), and sets a circular groove on the side of the cylinder body close to the high gear, and the spring 17 is installed in the circular In the annular groove, and the spring 17 has a certain height, when the auxiliary box is switched from low gear to high gear, the air pressure will push the piston 2 to move to the high gear, and continue to move after passing through the neutral position, and the end surface of the piston 2 will touch the spring 17 , at this time, as the piston 2 moves, the compression amount of the spring 17 gradually increases to generate a certain axial force, which is opposite to the direction of the air pressure force.

一般副箱气缸左侧为高挡、当从低挡往高挡挂挡时,低挡侧连接副箱换挡气缸盖3的气管进气,而高挡侧气缸体1上连接的气管排气,此时活塞2带动拨叉轴4、同时拨叉轴4带动副箱拨叉,副箱拨叉带动同步器向高挡侧移动,当活塞2到达空挡位置后便与弹簧17接触,此时弹簧17逐渐被压缩并产生一定压缩力减缓活塞2的轴向移动速度,同时减少滑套轴向作用合力,从而降低了同步器锁止面上的轴向力,这样可以适当延长同步时间,降低同步器摩擦环锥面单位面积上的功率,从而降低摩擦面产生的热量,降低同步器摩擦材料磨损和脱落发生的风险。当同步完成时,活塞2在气压的作用下进一步克服弹簧17的阻力挂入高挡,从而避免了挂高挡时同步器锥环摩擦热急剧产生的现象,保证了同步器摩擦材料在同步时不会快速脱落。Generally, the left side of the auxiliary box cylinder is the high gear. When shifting from low gear to high gear, the low gear side is connected to the air pipe of the auxiliary box shift cylinder head 3 for intake air, and the air pipe connected to the high gear side cylinder block 1 is exhausted. At this time, the piston 2 drives the shift fork shaft 4, and at the same time the shift fork shaft 4 drives the auxiliary box shift fork, and the auxiliary case shift fork drives the synchronizer to move to the high gear side. When the piston 2 reaches the neutral position, it contacts the spring 17. At this time The spring 17 is gradually compressed and generates a certain compression force to slow down the axial movement speed of the piston 2, and at the same time reduce the resultant axial force of the sliding sleeve, thereby reducing the axial force on the locking surface of the synchronizer, which can properly prolong the synchronization time and reduce the The power per unit area of the cone surface of the synchronizer friction ring reduces the heat generated by the friction surface and reduces the risk of wear and shedding of the synchronizer friction material. When the synchronization is completed, the piston 2 further overcomes the resistance of the spring 17 under the action of the air pressure and engages in a high gear, thereby avoiding the phenomenon that the frictional heat of the synchronizer cone ring is sharply generated when the high gear is engaged, and ensuring that the friction material of the synchronizer is stable during synchronization. Does not fall off quickly.

对于挂完高挡后高挡气管仍然有气压的气缸,弹簧17的作用力较小不会造成掉挡现象的发生,可以没有锁挡结构;对于挂完高挡后高挡气管断气无气压的气缸,气缸会本身带锁挡机构来防止掉挡,此结构的弹簧力也较小,不会造成掉挡的发生。本实用新型用到的弹簧17加工容易,气缸体可适当更改后即可使用,工艺简单,故本实用新型的制造成本低。For the cylinder that still has air pressure in the high gear air pipe after the high gear is engaged, the force of the spring 17 is small and will not cause the occurrence of the gear drop phenomenon, and there may be no locking structure; Cylinder, the cylinder itself has a locking mechanism to prevent gear loss, and the spring force of this structure is also small, which will not cause gear loss. The spring 17 used in the utility model is easy to process, and the cylinder block can be used after being properly modified. The process is simple, so the manufacturing cost of the utility model is low.

本实用新型可以降低活塞2对气缸壁的冲击,避免拨叉轴4表面以及与拨叉轴4接触的气缸壁表面拉伤产生划痕造成的O型密封圈损坏从而产生漏气的现象,同时也可以降低拨叉对滑套的冲击以及滑套对锁止销锁止面的冲击,还可以降低滑套对高挡齿轮花键齿的冲击,利于保护副箱同步器和高挡齿轮,很大程度上也可以降低副箱高挡锥环碳布脱落现象的发生。同样气压大小时,通过增加弹簧可使高挡侧同步力降低,而稍微延长高挡侧同步时间,降低高低挡之间同步时间的差异,很大程度上也可以降低副箱高挡锥环碳布脱落现象的发生。The utility model can reduce the impact of the piston 2 on the cylinder wall, and avoid the O-ring damage caused by scratches on the surface of the shift fork shaft 4 and the surface of the cylinder wall in contact with the shift fork shaft 4, resulting in air leakage. It can also reduce the impact of the shift fork on the sliding sleeve and the impact of the sliding sleeve on the locking surface of the locking pin. To a large extent, it can also reduce the occurrence of the carbon cloth shedding of the high-block cone ring of the auxiliary box. When the air pressure is the same, the synchronous force of the high gear side can be reduced by increasing the spring, and the synchronous time of the high gear side can be slightly extended to reduce the difference of the synchronous time between the high gear and the low gear. Cloth shedding occurs.

Claims (7)

1. the auxiliary box cylinder assembly of a high gear side band spring, it is characterized in that, comprise cylinder block (1), inner in cylinder block (1), declutch shift shaft (4) is connected by hexagonal nylon ring locking thin nut (10) with piston (2), the end winding support of cylinder block (1) has odd-side shifting cylinder lid (3), the high gear side inwall of cylinder block (1) offers the circle shape groove coaxial with declutch shift shaft (4), arrange spring (17) in circle shape groove, the free height of spring (17) is greater than the degree of depth of circle shape groove.
2. the auxiliary box cylinder assembly of a kind of high gear side according to claim 1 band spring, it is characterized in that, the free height of spring (17) is: when being in neutral, the distance between the bottom of circle shape groove and piston (2).
3. the auxiliary box cylinder assembly of a kind of high gear side according to claim 1 band spring, it is characterized in that, odd-side shifting cylinder lid (3) is fixed on the end of cylinder block (1) by hexagon head bolt and spring washer assembly parts (9) and cylinder head gasket (8).
4. the auxiliary box cylinder assembly of a kind of high gear side according to claim 1 band spring, it is characterized in that, the sidewall of cylinder block (1) is provided with the stopper structure coordinated with the gear shifting structure on declutch shift shaft (4), stopper structure comprises the plug screw (15) interting and be arranged on cylinder block (1) sidewall, is located at the retaining spring (14) in plug screw (15) and is located at the steel ball (16) of retaining spring (14) end.
5. the auxiliary box cylinder assembly of a kind of high gear side according to claim 1 band spring, it is characterized in that, between the inwall of declutch shift shaft (4) and cylinder block (1), between piston (2) and the inwall of cylinder block (1) and between declutch shift shaft (4) and piston (2), be respectively equipped with the first seal ring (5), the second seal ring (6) and the 3rd seal ring (7).
6. the auxiliary box cylinder assembly of a kind of high gear side according to claim 5 band spring, is characterized in that, the first seal ring (5), the second seal ring (6) and the 3rd seal ring (7) are O RunddichtringO.
7. the auxiliary box cylinder assembly of a kind of high gear side according to claim 1 band spring, it is characterized in that, odd-side shifting cylinder lid (3) is provided with hexagon head plug screw (11), is provided with fold copper washer (12) between hexagon head plug screw (11) and odd-side shifting cylinder lid (3).
CN201520266325.4U 2015-04-28 2015-04-28 The auxiliary box cylinder assembly of a kind of high gear side band spring Expired - Lifetime CN204716961U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105351378A (en) * 2015-12-15 2016-02-24 新昌县兴旺轴承有限公司 High-efficiency temperature control grease-injecting device for bearing
CN113357363A (en) * 2021-05-27 2021-09-07 东风商用车有限公司 Cylinder piston sequential gear mechanism
CN116123281A (en) * 2022-12-17 2023-05-16 陕西法士特齿轮有限责任公司 Gear shifting cylinder assembly with unidirectional on-off functional component

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105351378A (en) * 2015-12-15 2016-02-24 新昌县兴旺轴承有限公司 High-efficiency temperature control grease-injecting device for bearing
CN113357363A (en) * 2021-05-27 2021-09-07 东风商用车有限公司 Cylinder piston sequential gear mechanism
CN116123281A (en) * 2022-12-17 2023-05-16 陕西法士特齿轮有限责任公司 Gear shifting cylinder assembly with unidirectional on-off functional component

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