CN212425269U - Head top, tail top and wing top structure - Google Patents

Abstract

The utility model discloses a head top, tail top and wing top structure, head top structure includes first hydro-cylinder, first cover jar, first piston, first lead screw, first lug, first cap, first cover jar uide bushing, first cover jar anti-falling nut, first piston uide bushing, first piston anti-falling nut, first screw, first top, first spacing packing ring, first jackscrew, first piston polytetrafluoroethylene retaining ring, first piston O type rubber seal, first cover jar polytetrafluoroethylene retaining ring, first cover jar uide ring, first piston guide ring and first axle retaining ring, an oil inlet has been seted up to a side end face of first hydro-cylinder; the aircraft nose top, the aircraft tail top and the wing top structure have the advantages of simple and reasonable structure, convenience in operation, capability of bearing higher pressure, difficulty in damage, labor saving, high working efficiency, integration of an oil way and a reversing valve, less exposed oil pipe and good sealing effect.

Description

Head top, tail top and wing top structure

Technical Field

The utility model relates to a quick-witted repair tools technical field specifically is a aircraft nose top, tail top and wing top structure.

Background

With the continuous development of economic construction and the progress of science and technology in China, the aviation industry in China is also developed rapidly. Some new, technically advanced and structurally novel, civilian and military aircraft have been in service at various airlines and military airports. In this situation, conventional aircraft service tools have been unable to accommodate the above requirements due to unreasonable construction and technical lag.

At present, in the process of disassembling the tire of the airplane or overhauling the airplane, the structure of the used fuselage jack is not reasonable enough, and a plurality of defects and shortcomings exist, which are specifically shown as follows: firstly, in the prior machine body jack with the manual reversing valve, only a large manual pump can be used for idle load lifting, higher pressure cannot be borne, the large water manual pump cannot be used simultaneously, only a small manual pump can be used for bearing the pressure, and if the large manual pump is used for pressing, a valve core of the reversing valve can be punctured due to overlarge pressure. Secondly, on the base under the oil tank bracket of the oil return vertical valve on the conventional jack, the purpose of oil return can be achieved only by adding a connecting rod and a universal joint during use, and the structure is unreasonable and is not easy to operate. The former wheel shaft jack has slow lifting and falling speed, large labor intensity and low working efficiency. The conventional airplane body jack cannot directly reflect the pressure born by the jack, and the whole equipment is damaged due to overpressure work in the using process. The oil pipe of the traditional machine body jack is too much, so that the leakage phenomenon caused by the collision of the pipe joints of each oil path is caused, and the sealing effect is poor, therefore, the design of a machine head top, a machine tail top and a wing top structure is necessary.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a head top, tail top and wing top structure, simple structure is reasonable, convenient operation, can bear higher pressure, not fragile, practice thrift labour, work efficiency height, oil circuit and switching-over valve are integrated as an organic whole, oil pipe exposes fewly, and is sealed effectual.

The purpose of the utility model can be realized by the following technical scheme:

a machine head top structure comprises a first oil cylinder, a first sleeve cylinder, a first piston, a first lead screw, a first pressing lug, a first big cap, a first sleeve cylinder guide sleeve, a first sleeve cylinder anti-falling nut, a first piston guide sleeve, a first piston anti-falling nut, a first screw nut, a first top head, a first limit washer, a first jackscrew, a first piston polytetrafluoroethylene check ring, a first piston O-shaped rubber sealing ring, a first sleeve cylinder polytetrafluoroethylene check ring, a first sleeve cylinder guide ring, a first piston guide ring and a first shaft check ring, wherein an oil inlet is formed in one side end face of the first oil cylinder, a plurality of first big caps are fixedly installed at the position of the outer wall of the top of the first oil cylinder, the first pressing lug is fixedly installed on the outer wall of the top of the first oil cylinder, the first sleeve cylinder guide sleeve cylinder nut is installed on the outer wall of the top of the first sleeve cylinder guide sleeve cylinder, the inner part of the first sleeve cylinder guide sleeve is inserted with a first sleeve cylinder, one end of the first sleeve cylinder anti-falling nut is attached to the outer wall of the first sleeve cylinder, the bottom of the inner wall of the first oil cylinder is respectively provided with a first sleeve cylinder guide ring, a first sleeve cylinder polytetrafluoroethylene check ring and a first sleeve cylinder O-shaped rubber seal ring from bottom to top, the two first sleeve cylinder polytetrafluoroethylene check rings are respectively positioned at the top and the bottom of the first sleeve cylinder O-shaped rubber seal ring, the outer wall of the first sleeve cylinder is respectively attached to the inner walls of the first sleeve cylinder O-shaped rubber seal ring, the first sleeve cylinder polytetrafluoroethylene check ring and the first sleeve cylinder guide ring, the top inner wall of the first sleeve cylinder is provided with a first piston guide sleeve, the top outer wall of the first piston guide sleeve is fixedly provided with a first piston anti-falling nut, the inner part of the first piston guide sleeve is inserted with a first piston, and the end of the first piston anti-falling nut is attached to the outer wall of the first piston, the bottom of the inner wall of the first sleeve cylinder is respectively provided with a first shaft check ring, a first piston guide ring, a first piston polytetrafluoroethylene check ring and a first piston O-shaped rubber seal ring from bottom to top, and the two polytetrafluoroethylene check rings of the first piston are respectively positioned at the top and the bottom of the O-shaped rubber sealing ring of the first piston, the outer wall of the first piston is respectively jointed and connected with the inner walls of the polytetrafluoroethylene retainer ring of the first piston, the O-shaped rubber sealing ring of the first piston, the guide ring of the first piston and the retainer ring for the first shaft, a first screw nut is arranged on the inner wall of the top of the first piston, a first jackscrew is inserted and arranged on one side of the first screw nut, a first screw rod is inserted and arranged in the center of the interior of the first screw nut, and one end of the first jackscrew penetrates through the outer wall connection of the first nut and the first screw rod, a first jacking head is installed in the center of the top end face of the first screw rod, and a first limiting washer is installed on the outer wall of the top of the first screw rod in a sleeved mode.

A machine tail top structure comprises a second oil cylinder, a second piston, a second lead screw, a second pressing lug, a second big cap, a second piston guide sleeve, a second piston anti-falling nut, a second screw nut, a second top head, a second limiting washer, a second jackscrew, a second piston polytetrafluoroethylene check ring, a second piston O-shaped rubber seal ring and a second piston guide ring, wherein the outer wall of the top of the second oil cylinder is fixedly provided with a plurality of second big caps, the outer side of each second big cap is fixedly provided with the second pressing lug, one side of the end face of the bottom of the second oil cylinder is provided with an oil inlet, the inner wall of the top of the second oil cylinder is provided with the second piston guide sleeve, the outer wall of the top of the second piston guide sleeve is fixedly provided with the second piston anti-falling nut, the inner part of the second piston guide sleeve is provided with the second piston in an inserting manner, one end of the second piston nut is connected with the outer wall of the second piston in an attaching manner, the bottom of the inner wall of the second oil cylinder is respectively provided with a second piston guide ring, a second piston O-shaped rubber sealing ring and a second piston polytetrafluoroethylene check ring from bottom to top, and two polytetrafluoroethylene check rings of the second piston are respectively positioned at the top and the bottom of the O-shaped rubber sealing ring of the second piston, the outer wall of the second piston is respectively jointed and connected with the polytetrafluoroethylene retainer ring of the second piston, the O-shaped rubber sealing ring of the second piston and the inner wall of the guide ring of the second piston, a second screw is arranged on the inner wall of the top of the second piston, a second jackscrew is inserted and arranged on one side of the second screw, a second screw rod is inserted and arranged in the center of the interior of the second screw, and one end of the second jackscrew passes through the second screw and is connected with the outer wall of the second lead screw, a second jacking head is installed in the center of the top end face of the second lead screw, and a second limiting washer is installed on the outer wall of the top of the second lead screw in a sleeved mode.

A wing top structure comprises a third oil cylinder, a second sleeve cylinder, a third piston, a third screw rod, a third pressing lug, a third large cap, a second sleeve cylinder guide sleeve, a second sleeve cylinder anti-falling nut, a third piston guide sleeve, a third piston anti-falling nut, a third screw nut, a third top head, a third limiting washer, a third jackscrew, a third piston polytetrafluoroethylene check ring, a third piston O-shaped rubber seal ring, a second sleeve cylinder polytetrafluoroethylene check ring, a second sleeve cylinder guide ring, a third piston guide ring and a second shaft check ring, wherein an oil inlet is formed in one side end face of the third oil cylinder, a plurality of third large caps are fixedly mounted at the position of the outer wall of the top of the third oil cylinder, the third pressing lug is fixedly mounted on the outer side of the third large cap, the second sleeve cylinder guide sleeve is mounted on the inner wall of the top of the third oil cylinder guide sleeve, the second sleeve cylinder nut is mounted on the outer wall of the top of the second sleeve guide sleeve, the inside grafting of second cover jar uide bushing installs the second cover jar, and the second cover jar prevents weighing down the one end of nut and the outer wall laminating of second cover jar is connected, the inner wall bottom of third hydro-cylinder is installed second cover jar guide ring, second cover jar polytetrafluoroethylene retaining ring and second cover jar O type rubber seal respectively from bottom to top, and two second cover jar polytetrafluoroethylene retaining rings are located the top and the bottom of second cover jar O type rubber seal respectively, the outer wall of second cover jar is connected with the inner wall laminating of second cover jar O type rubber seal, second cover jar polytetrafluoroethylene retaining ring and second cover jar guide ring respectively, the third piston uide bushing is installed to the top inner wall of second cover jar, the top outer wall fixed mounting of third piston uide bushing has the third piston to prevent weighing down the nut, the inside grafting of third piston uide bushing installs the third piston, and the one end that the third piston prevented weighing down the nut is connected with the outer wall laminating of third piston, the bottom of the inner wall of the second sleeve cylinder is respectively provided with a retaining ring for a second shaft, a third piston guide ring, a third piston polytetrafluoroethylene retaining ring and a third piston O-shaped rubber sealing ring from bottom to top, and two polytetrafluoroethylene check rings of the third piston are respectively positioned at the top and the bottom of the O-shaped rubber sealing ring of the third piston, the outer wall of the third piston is respectively jointed and connected with the inner walls of a polytetrafluoroethylene retainer ring of the third piston, an O-shaped rubber seal ring of the third piston, a guide ring of the third piston and a retainer ring for a second shaft, a third screw is arranged on the inner wall of the top of the third piston, a third top screw is inserted and arranged on one side of the third screw, a third screw rod is inserted and arranged in the center of the interior of the third screw, and one end of a third jackscrew penetrates through a third nut to be connected with the outer wall of a third screw rod, a third jacking head is installed in the center of the top end face of the third screw rod, and a third limiting washer is installed on the outer wall of the top of the third screw rod in a sleeved mode.

The utility model has the advantages that: the aircraft nose top, the aircraft tail top and the wing top structure have the advantages of simple and reasonable structure, convenience in operation, capability of bearing higher pressure, difficulty in damage, labor saving, high working efficiency, integration of an oil way and a reversing valve, less exposed oil pipe and good sealing effect.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of a machine head top according to the present invention;

FIG. 2 is an enlarged view of section I of the head set of the present invention;

FIG. 3 is a schematic structural view of the machine tail top of the present invention;

FIG. 4 is an enlarged view of the rear roof H of the present invention;

fig. 5 is a schematic structural view of the wing top of the present invention;

FIG. 6 is an enlarged view of K of the wing top of the present invention;

in the figure: 101. a first cylinder; 102. a first set of cylinders; 103. a first piston; 104. a first lead screw; 105. a first pressing lug; 106. a first large cap; 107. a first set of cylinder guide sleeves; 108. the first sleeve cylinder anti-falling nut; 109. a first piston guide sleeve; 1010. a first piston drop nut; 1011. a first screw nut; 1012. a first plug; 1013. a first limit washer; 1014. a first jackscrew; 1015. a polytetrafluoroethylene retainer ring of the first piston; 1016. a first piston O-shaped rubber sealing ring; 1017. a first set of cylinder O-shaped rubber sealing rings; 1018. a polytetrafluoroethylene check ring of a first set of cylinders; 1019. a first set of cylinder guide rings; 1020. a first piston guide ring; 1021. a first shaft retainer ring; 201. a second cylinder; 202. a second piston; 203. a second lead screw; 204. a second pressing ear; 205. a second large cap; 206. a second piston guide sleeve; 207. a second piston anti-drop nut; 208. a second screw; 209. a second plug; 2010. a second limit washer; 2011. a second jackscrew; 2012. a polytetrafluoroethylene retainer ring of the second piston; 2013. a second piston O-shaped rubber sealing ring; 2014. a second piston guide ring; 301. a third oil cylinder; 302. a second set of cylinders; 303. a third piston; 304. a third screw rod; 305. thirdly, pressing the ear; 306. a third large cap; 307. a second sleeve cylinder guide sleeve; 308. the second sleeve cylinder anti-falling nut; 309. a third piston guide sleeve; 3010. a third piston anti-falling nut; 3011. a third screw; 3012. a third plug; 3013. a third limit washer; 3014. a third jackscrew; 3015. a polytetrafluoroethylene check ring of a third piston; 3016. a third piston O-shaped rubber sealing ring; 3017. a second sleeve cylinder O-shaped rubber sealing ring; 3018. a second set of cylinder polytetrafluoroethylene check ring; 3019. a second set of cylinder guide rings; 3020. a third piston guide ring; 3021. and a retainer ring for the second shaft.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-2, a machine head top structure includes a first oil cylinder 101, a first casing 102, a first piston 103, a first screw 104, a first pressing lug 105, a first big cap 106, a first casing guide sleeve 107, a first casing anti-falling nut 108, a first piston guide sleeve 109, a first piston anti-falling nut 1010, a first nut 1011, a first head 1012, a first limit washer 1013, a first jackscrew 1014, a first piston polytetrafluoroethylene retainer ring 1015, a first piston O-shaped rubber seal ring 1016, a first casing O-shaped rubber seal ring 1017, a first casing polytetrafluoroethylene retainer ring 1018, a first casing guide ring 1019, a first piston guide ring 1020, and a first shaft retainer ring 1021, an oil inlet is provided on one side end face of the first oil cylinder 101, a plurality of first big caps 106 are fixedly installed at a top outer wall position of the first oil cylinder 101, and the first pressing lug 105 is fixedly installed at an outer side of the first big cap 106, a first sleeve cylinder guide sleeve 107 is arranged on the inner wall of the top of the first oil cylinder 101, a first sleeve cylinder anti-falling nut 108 is arranged on the outer wall of the top of the first sleeve cylinder guide sleeve 107, a first sleeve cylinder 102 is inserted and installed inside the first sleeve cylinder guide sleeve 107, one end of the first sleeve cylinder anti-falling nut 108 is connected with the outer wall of the first sleeve cylinder 102 in a fitting manner, a first sleeve cylinder guide ring 1019, a first sleeve cylinder polytetrafluoroethylene check ring 1018 and a first sleeve cylinder O-shaped rubber sealing ring 1017 are respectively installed at the bottom of the inner wall of the first oil cylinder 101 from bottom to top, the two first sleeve cylinder polytetrafluoroethylene check rings 1018 are respectively positioned at the top and the bottom of the first sleeve cylinder O-shaped rubber sealing ring 1017, the outer wall of the first sleeve cylinder 102 is respectively connected with the first sleeve cylinder O-shaped rubber sealing ring 1017, the first sleeve cylinder polytetrafluoroethylene check ring 1018 and the inner wall of the first sleeve cylinder guide ring 1019 in a fitting manner, a first piston guide, a first piston anti-falling nut 1010 is fixedly installed on the outer wall of the top of a first piston guide sleeve 109, a first piston 103 is installed inside the first piston guide sleeve 109 in an inserted manner, one end of the first piston anti-falling nut 1010 is attached to the outer wall of the first piston 103, a first shaft retainer ring 1021, a first piston guide ring 1020, a first piston polytetrafluoroethylene retainer ring 1015 and a first piston O-shaped rubber sealing ring 1016 are respectively installed at the bottom of the inner wall of a first sleeve cylinder 102 from bottom to top, the two first piston polytetrafluoroethylene retainer rings 1015 are respectively located at the top and the bottom of the first piston O-shaped rubber sealing ring 1016, the outer wall of the first piston 103 is respectively attached to the inner walls of the first piston polytetrafluoroethylene retainer ring 1015, the first piston O-shaped rubber sealing ring 1016, the first piston guide ring 1020 and the first shaft retainer ring 1021, a first nut 1011 is installed on the inner wall of the top of the first piston 103, a first top wire 1014 is installed on one side of the first nut 1011 in an inserted manner, the first lead screw 104 is installed in the middle of the inside of the first screw 1011 in an inserted mode, one end of the first top screw 1014 penetrates through the first screw 1011 to be connected with the outer wall of the first lead screw 104, the first top head 1012 is installed in the middle of the top end face of the first lead screw 104, and the first limiting washer 1013 is installed on the outer wall of the top of the first lead screw 104 in a sleeved mode.

As shown in fig. 3-4, a machine tail top structure includes a second oil cylinder 201, a second piston 202, a second screw rod 203, a second pressing lug 204, a second large cap 205, a second piston guide sleeve 206, a second piston anti-falling nut 207, a second nut 208, a second top 209, a second limit washer 2010, a second jackscrew 2011, a second piston teflon retainer ring 2012, a second piston O-shaped rubber seal 2013 and a second piston guide ring 2014, a plurality of second large caps 205 are fixedly mounted on the outer wall of the top of the second oil cylinder 201, a second pressing lug 204 is fixedly mounted on the outer side of the second large cap 205, an oil inlet is formed on one side of the end face of the bottom of the second oil cylinder 201, a second piston guide sleeve 206 is mounted on the inner wall of the top of the second oil cylinder 201, a second piston anti-falling nut 207 is fixedly mounted on the outer wall of the top of the second piston guide sleeve 206, the second piston 202 is inserted and mounted inside the second piston guide sleeve 206, one end of the second piston anti-falling nut 207 is attached to and connected with the outer wall of the second piston 202, the bottom of the inner wall of the second oil cylinder 201 is respectively provided with a second piston guide ring 2014, a second piston O-shaped rubber sealing ring 2013 and a second piston polytetrafluoroethylene check ring 2012 from bottom to top, the two second piston polytetrafluoroethylene check rings 2012 are respectively positioned at the top and the bottom of the second piston O-shaped rubber sealing ring 2013, the outer wall of the second piston 202 is respectively attached to and connected with the inner walls of the second piston polytetrafluoroethylene check ring 2012, the second piston O-shaped rubber sealing ring 2013 and the second piston guide ring 2014, the inner wall of the top of the second piston 202 is provided with a second nut 208, one side of the second nut 208 is provided with a second jackscrew 2011 in an inserting manner, the center of the interior of the second nut 208 is provided with a second screw rod 203, one end of the second jackscrew 2011 penetrates through the second nut 208 to be connected with the outer wall of the second screw rod 203, and the center of the end surface of the top of the second screw rod 203 is, and a second limit washer 2010 is sleeved on the outer wall of the top of the second screw rod 203.

As shown in fig. 5-6, a wing top structure includes a third oil cylinder 301, a second sleeve 302, a third piston 303, a third screw rod 304, a third pressing lug 305, a third large cap 306, a second sleeve guide sleeve 307, a second sleeve anti-falling nut 308, a third piston guide sleeve 309, a third piston anti-falling nut 3010, a third nut 3011, a third tip 3012, a third limit washer 3013, a third tip 3014, a third piston teflon collar 3015, a third piston O-shaped rubber seal 3016, a second sleeve O-shaped rubber seal 3017, a second sleeve teflon collar 3018, a second sleeve guide ring 3019, a third piston guide ring 3020 and a second shaft collar 3021, an oil inlet is provided on an end face of one side of the third oil cylinder 301, a plurality of third large caps 306 are fixedly installed at a top outer wall position of the third oil cylinder 301, and the third pressing lug 305 is fixedly installed on an outer side of the third large cap 306, a second sleeve cylinder guide sleeve 307 is installed on the inner wall of the top of the third oil cylinder 301, a second sleeve cylinder anti-falling nut 308 is installed on the outer wall of the top of the second sleeve cylinder guide sleeve 307, a second sleeve cylinder 302 is installed inside the second sleeve cylinder guide sleeve 307 in an inserted manner, one end of the second sleeve cylinder anti-falling nut 308 is connected with the outer wall of the second sleeve cylinder 302 in an attached manner, a second sleeve cylinder guide ring 3019, a second sleeve cylinder polytetrafluoroethylene check ring 3018 and a second sleeve cylinder O-shaped rubber sealing ring 3017 are respectively installed at the bottom of the inner wall of the third oil cylinder 301 from bottom to top, two second sleeve cylinder polytetrafluoroethylene check rings 3018 are respectively located at the top and the bottom of the second sleeve cylinder O-shaped rubber sealing ring 3017, the outer wall of the second sleeve cylinder 302 is respectively connected with the second sleeve cylinder O-shaped rubber sealing ring 3017, the second sleeve cylinder polytetrafluoroethylene check ring 3018 and the inner wall of the second sleeve cylinder guide ring 3019 in an attached manner, a third piston, a third piston anti-falling nut 3010 is fixedly installed on the outer wall of the top of the third piston guide sleeve 309, a third piston 303 is installed inside the third piston guide sleeve 309 in an inserted manner, one end of the third piston anti-falling nut 3010 is attached to the outer wall of the third piston 303, a second shaft check ring 3021, a third piston guide ring 3020, a third piston polytetrafluoroethylene check ring 3015 and a third piston O-shaped rubber seal 3016 are respectively installed on the bottom of the inner wall of the second sleeve cylinder 302 from bottom to top, two third piston polytetrafluoroethylene check rings 3015 are respectively located at the top and bottom of the third piston O-shaped rubber seal 3016, the outer wall of the third piston 303 is respectively attached to the inner walls of the third piston polytetrafluoroethylene check ring 3015, the third piston O-shaped rubber seal 3016, the third piston guide ring 3020 and the second shaft check ring 3021, a third nut 3011 is installed on the inner wall of the top of the third piston 303, a third top screw 3014 is installed on one side of the third nut 3011 in an inserted manner, the center inside the third screw 3011 is provided with a third screw 304 in an inserted manner, one end of a third jackscrew 3014 passes through the third screw 3011 to be connected with the outer wall of the third screw 304, the center of the top end face of the third screw 304 is provided with a third top 3012, and the outer wall of the top of the third screw 304 is provided with a third limit washer 3013 in a sleeved manner.

The utility model discloses a theory of operation:

when the machine head top structure is used, the external support main body can be connected through the first pressing lug 105 and the first big cap 106, so that the first oil cylinder 101 can be stably supported, a hydraulic oil pipe of an external hydraulic station is connected with an oil inlet hole on one side of the bottom of the first oil cylinder 101, hydraulic oil enters the first oil cylinder 101, after the hydraulic oil enters the bottom of the first sleeve cylinder 102, because the first sleeve cylinder 102 is connected with the first oil cylinder 101 through the first sleeve cylinder guide sleeve 107 and the first sleeve cylinder anti-falling nut 108, and the first piston 103 is connected with the first sleeve cylinder 102 through the first piston guide sleeve 109 and the first piston anti-falling nut 1010, the first piston 103 can be pushed to ascend through the hydraulic action of the hydraulic oil, in the ascending process, the first sleeve cylinder 102 is connected with the inner wall of the first oil cylinder 101 through the first sleeve cylinder guide ring 1019, the first sleeve cylinder polytetrafluoroethylene check ring 1011018 and the first sleeve cylinder 1011010, the first piston 103 is connected with the inner wall of the first sleeve cylinder 102 through a first shaft retainer 1021, a first piston guide ring 1020, a first piston polytetrafluoroethylene retainer 1015 and a first piston O-shaped rubber sealing ring 1016, and in the moving process of the first piston 103, as the first screw rod 104 is connected with the first piston 103 through a first nut 1011 and a first jackscrew 1014, the first screw rod 104 is connected with the machine head through a first top head 1012 and a first limit washer 1013 at the top of the first screw rod 104, so that the first top head 1012 and the first limit washer 1013 can move together with the first screw rod 104, and the machine head can be jacked up;

when the machine tail top structure is used, the external support main body can be connected through the second pressing lug 204 and the second big cap 205, so that the stable supporting effect can be provided for the second oil cylinder 201, a hydraulic oil pipe of an external hydraulic station is connected with an oil inlet hole on one side of the bottom of the second oil cylinder 201, hydraulic oil enters into the second oil cylinder 201, after the hydraulic oil enters into the bottom of the second piston 202, because the second piston 202 is connected with the second oil cylinder 201 through the second piston guide sleeve 206 and the second piston anti-falling nut 207, the second piston 202 is pushed to ascend through the hydraulic action of the hydraulic oil, in the ascending process, the second piston 202 is connected with the second piston 202 through the second piston guide ring 2014, the second piston O-shaped rubber sealing ring 2013 and the second piston polytetrafluoroethylene retainer ring 2012, and in the moving process of the second piston 202, because the second lead screw 203 is connected with the second piston 202 through the second nut 208 and the second top thread 2011, the second screw rod 203 is connected with the machine tail through a second jacking head 209 and a second limiting washer 2010 on the top of the second screw rod 203, so that the second screw nut 208 and the second limiting washer 2010 can move together with the second screw rod 203, and the machine tail can be jacked up;

when the wing top structure is used, an external support main body can be connected through the third pressing lug 305 and the third big cap 306, so that the third oil cylinder 301 can be stably supported, a hydraulic oil pipe of an external hydraulic station is connected with an oil inlet hole on one side of the bottom of the third oil cylinder 301, hydraulic oil enters the inside of the third oil cylinder 301, after the hydraulic oil enters the bottom of the second sleeve cylinder 302, as the second sleeve cylinder 302 is connected with the third oil cylinder 301 through the second sleeve cylinder guide sleeve 307 and the second sleeve cylinder anti-falling nut 308, and the third piston 303 is connected with the second sleeve cylinder 302 through the third piston guide sleeve 309 and the third piston anti-falling nut 3010, the third piston 303 is pushed to ascend through the hydraulic action of the hydraulic oil, and in the ascending process, the second sleeve cylinder 302 is connected with the inner wall of the third oil cylinder 301 through the second sleeve cylinder guide ring 3019, the second sleeve cylinder polytetrafluoroethylene check ring 3018 and the second sleeve cylinder O-type rubber seal ring 3017, the third piston 303 is connected with the inner wall of the second sleeve 302 through a second shaft retainer ring 3021, a third piston guide ring 3020, a third piston polytetrafluoroethylene retainer ring 3015, and a third piston O-shaped rubber seal 3016, and in the moving process of the third piston 303, because the third screw 304 is connected with the third piston 303 through a third nut 3011 and a third jackscrew 3014, the third screw 304 is connected with the machine head through a third tip 3012 and a third limit washer 3013 at the top of the third screw 304, so that the third tip 3012 and the third limit washer 3013 can both move together with the third screw 304, and the wing can be jacked up.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (3)

1. A machine head top structure is characterized by comprising a first oil cylinder (101), a first sleeve cylinder (102), a first piston (103), a first screw rod (104), a first pressing lug (105), a first big cap (106), a first sleeve cylinder guide sleeve (107), a first sleeve cylinder anti-falling nut (108), a first piston guide sleeve (109), a first piston anti-falling nut (1010), a first nut (1011), a first top head (1012), a first limit gasket (1013), a first jackscrew (1014), a first piston polytetrafluoroethylene check ring (1015), a first piston O-shaped rubber seal ring (1016), a first sleeve cylinder O-shaped rubber seal ring (1017), a first sleeve cylinder polytetrafluoroethylene check ring (1018), a first sleeve cylinder guide ring (1019), a first piston guide ring (1020) and a first shaft check ring (1021), wherein an oil inlet is formed in one side end face of the first oil cylinder (101), the outer wall of the top of the first oil cylinder (101) is fixedly provided with a plurality of first big caps (106), the outer side of each first big cap (106) is fixedly provided with a first pressing lug (105), the inner wall of the top of the first oil cylinder (101) is provided with a first sleeve cylinder guide sleeve (107), the outer wall of the top of each first sleeve cylinder guide sleeve (107) is provided with a first sleeve cylinder anti-falling nut (108), the inside of each first sleeve cylinder guide sleeve (107) is provided with a first sleeve cylinder (102) in an inserted manner, one end of each first sleeve cylinder anti-falling nut (108) is connected with the outer wall of the first sleeve cylinder (102) in an attached manner, the bottom of the inner wall of the first oil cylinder (101) is respectively provided with a first sleeve cylinder guide ring (1019), a first sleeve cylinder polytetrafluoroethylene check ring (1018) and a first sleeve cylinder O-shaped rubber seal ring (1017) from bottom to top, and the two first sleeve cylinder polytetrafluoroethylene check rings (1018) are respectively positioned at the top and the bottom of the first sleeve cylinder O-shaped rubber seal ring (, the outer wall of the first sleeve cylinder (102) is respectively attached to the inner walls of an O-shaped rubber sealing ring (1017), a polytetrafluoroethylene check ring (1018) and a guide ring (1019) of the first sleeve cylinder, a first piston guide sleeve (109) is installed on the inner wall of the top of the first sleeve cylinder (102), a first piston anti-falling nut (1010) is fixedly installed on the outer wall of the top of the first piston guide sleeve (109), a first piston (103) is installed inside the first piston guide sleeve (109) in an inserting mode, one end of the first piston anti-falling nut (1010) is attached to the outer wall of the first piston (103) and connected to the inner wall bottom of the first sleeve cylinder (102) from bottom to top, a first shaft check ring (1021), a first piston guide ring (1020), a polytetrafluoroethylene check ring (1015) and an O-shaped rubber sealing ring (1016) of the first piston are respectively installed on the bottom of the inner wall of the first sleeve cylinder (102), and the polytetrafluoroethylene check rings (1015) of the two first pistons are respectively located on the top of the O-shaped rubber sealing ring (1016) of the The outer wall of first piston (103) is connected with the inner wall laminating of first piston polytetrafluoroethylene retaining ring (1015), first piston O type rubber seal (1016), first piston guide ring (1020) and first for the shaft retaining ring (1021) respectively, first screw (1011) is installed to the top inner wall of first piston (103), first jackscrew (1014) is installed in the grafting of one side of first screw (1011), first lead screw (104) is installed in the grafting of the inside central authorities of first screw (1011), and the outer wall connection of first screw (1011) and first lead screw (104) is passed to the one end of first jackscrew (1014), first top (1012) is installed at the top terminal surface central authorities of first lead screw (104), first spacing packing ring (1013) is installed in the cup jointing of the top outer wall of first lead screw (104).

2. A machine tail top structure is characterized by comprising a second oil cylinder (201), a second piston (202), a second screw rod (203), a second pressing lug (204), a second big cap (205), a second piston guide sleeve (206), a second piston anti-falling nut (207), a second screw nut (208), a second top head (209), a second limiting gasket (2010), a second jackscrew (2011), a second piston polytetrafluoroethylene check ring (2012), a second piston O-shaped rubber sealing ring (2013) and a second piston guide ring (2014), wherein a plurality of second big caps (205) are fixedly installed on the outer wall of the top of the second oil cylinder (201), the second pressing lug (204) is fixedly installed on the outer side of the second big cap (205), an oil inlet hole is formed in one side of the bottom end face of the second oil cylinder (201), and the second piston guide sleeve (206) is installed on the inner wall of the top of the second oil cylinder (201), the top outer wall fixed mounting of second piston uide bushing (206) has the second piston to prevent weighing down nut (207), the inside grafting of second piston uide bushing (206) is installed second piston (202), and the second piston prevents weighing down the one end of nut (207) and is connected with the outer wall laminating of second piston (202), the inner wall bottom of second hydro-cylinder (201) is installed second piston guide ring (2014), second piston O type rubber seal ring (2013) and second piston polytetrafluoroethylene retaining ring (2012) respectively by going up, and two second piston polytetrafluoroethylene retaining rings (2012) are located the top and the bottom of second piston O type rubber seal ring (2013) respectively, the outer wall of second piston (202) is connected with the inner wall laminating of second piston polytetrafluoroethylene retaining ring (2012), second piston O type rubber seal ring (2013) and second piston guide ring (2014) respectively, second screw (208) is installed to the top inner wall of second piston (202), one side of second screw (208) is pegged graft and is installed second jackscrew (2011), second lead screw (203) is installed in the inside central authorities grafting of second screw (208), and the outer wall connection of second screw (208) and second lead screw (203) is passed to the one end of second jackscrew (2011), second top (209) are installed to the top terminal surface central authorities of second lead screw (203), the top outer wall of second lead screw (203) cup joints and installs second limit washer (2010).

3. A wing top structure is characterized by comprising a third oil cylinder (301), a second sleeve cylinder (302), a third piston (303), a third lead screw (304), a third pressing lug (305), a third big cap (306), a second sleeve cylinder guide sleeve (307), a second sleeve cylinder anti-falling nut (308), a third piston guide sleeve (309), a third piston anti-falling nut (3010), a third nut (3011), a third top head (3012), a third limiting washer (3013), a third top thread (3014), a third piston polytetrafluoroethylene check ring (3015), a third piston O-shaped rubber seal ring (3016), a second sleeve cylinder O-shaped rubber seal ring (3017), a second sleeve cylinder polytetrafluoroethylene check ring (3018), a second sleeve cylinder guide ring (3019), a third piston guide ring (3020) and a second shaft check ring (3021), wherein an oil inlet is formed in one side end face of the third oil cylinder (301), the top outer wall position department fixed mounting of third hydro-cylinder (301) has a plurality of third big cap (306), and the outside fixed mounting of third big cap (306) has the third to suppress ear (305), second cover jar uide bushing (307) is installed to the top inner wall of third hydro-cylinder (301), the top outer wall of second cover jar uide bushing (307) is installed the second cover jar and is prevented weighing down nut (308), the inside grafting of second cover jar uide bushing (307) is installed second cover jar (302), and the second cover jar prevents weighing down the one end of nut (308) and the outer wall laminating of second cover jar (302) and is connected, the inner wall bottom of third hydro-cylinder (301) is installed second cover jar uide ring (3019), second cover jar polytetrafluoroethylene retaining ring (3018) and second cover jar O type rubber seal circle (3017) respectively by going up down, and two second cover jar polytetrafluoroethylene retaining rings (3018) are located the top and the bottom of second jar O type rubber seal circle (3017) respectively, the outer wall of second cover jar (302) is connected with the inner wall laminating of second cover jar O type rubber seal circle (3017), second cover jar polytetrafluoroethylene retaining ring (3018) and second cover jar guide ring (3019) respectively, third piston uide bushing (309) is installed to the top inner wall of second cover jar (302), the top outer wall fixed mounting of third piston uide bushing (309) has the third piston to prevent weighing down nut (3010), third piston (303) are installed in the inside grafting of third piston uide bushing (309), and the one end that the third piston prevented weighing down nut (3010) is connected with the outer wall laminating of third piston (303), the inner wall bottom of second cover jar (302) is installed retaining ring (3021) for the second shaft, third piston uide ring (3020), third piston polytetrafluoroethylene retaining ring (3015) and third piston O type rubber seal circle (3016) respectively by going up, and two third piston polytetrafluoroethylene retaining rings (3015) are located the top of third piston O type rubber seal circle (3016) respectively The outer wall of third piston (303) is connected with the inner wall laminating of third piston polytetrafluoroethylene check ring (3015), third piston O type rubber seal (3016), third piston guide ring (3020) and second axle check ring (3021) respectively, third screw (3011) are installed to the top inner wall of third piston (303), third jackscrew (3014) are installed in the grafting of one side of third screw (3011), third lead screw (304) are installed in the grafting of the inside central authorities of third screw (3011), and the outer wall connection of third screw (3011) and third lead screw (304) is passed to the one end of third jackscrew (3014), third top (3012) are installed at the top terminal surface central authorities of third lead screw (304), the top outer wall of third lead screw (304) is cup jointed and is installed third limit washer (3013).

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