阅读说明：本技术 一种气动液压泵 (Pneumatic hydraulic pump ) 是由 闻重祥 于 2021-09-17 设计创作，主要内容包括：本发明属于液压泵技术领域,尤其是一种气动液压泵,针对现有技术存在的问题,现提出以下方案,包括泵体,所述泵体的内部设置有气室,泵体的侧面外壁固定连接有与气室连通的换向阀,换向阀连接有进气接口,气室的侧面内壁滑动连接有活塞块,活塞块的侧面外壁固定连接有活塞圈,泵体的两端均固定连接有端块,端块与泵体之间设置有压封块,端块的内部设置有与气室相通的液压室,液压室的侧面外壁设置有出液口和进液口。本发明通过设置第二驱动机构,在正常使用时,离合机构分离,通过气源能进行驱动工作,当气源因意外而无法使用时,则能将离合机构合并,并通过电机驱动工作,通过双驱动的工作方式提高了整个气动液压泵的应急能力。(The invention belongs to the technical field of hydraulic pumps, in particular to a pneumatic hydraulic pump, and provides a scheme aiming at the problems in the prior art. According to the pneumatic hydraulic pump, the second driving mechanism is arranged, the clutch mechanism is separated during normal use, the driving work can be carried out through the air source, when the air source cannot be used due to accidents, the clutch mechanism can be combined, the motor is used for driving work, and the emergency capacity of the whole pneumatic hydraulic pump is improved through a dual-driving working mode.)

1. A pneumatic hydraulic pump comprises a pump body (1), an air chamber (5) is arranged inside the pump body (1), a reversing valve (4) communicated with the air chamber (5) is fixedly connected to the outer side wall of the pump body (1), an air inlet connector (2) is connected to the reversing valve (4), a piston block (16) is slidably connected to the inner side wall of the air chamber (5), a piston ring (3) is fixedly connected to the outer side wall of the piston block (16), end blocks (7) are fixedly connected to both ends of the pump body (1), a press sealing block (18) is arranged between the end blocks (7) and the pump body (1), a hydraulic chamber (13) communicated with the air chamber (5) is arranged inside the end blocks (7), a liquid outlet (25) and a liquid inlet (20) are arranged on the outer side wall of the hydraulic chamber (13), and one-way valves are respectively arranged in the liquid outlet (25) and the liquid inlet (20), the axial lead position opening round hole of the piston piece (16) of the pump body (1), and the side inner wall fixedly connected with piston post (19) of round hole, sliding connection is respectively in the side inner wall of the hydraulic chamber (13) of both sides at the both ends of piston post (19), smooth chamber (14) have been seted up to the inside of piston post (19), and the both ends of smooth chamber (14) have all been opened the pole hole, and the side inner wall sliding connection in pole hole has intermediate lever (24), and the both ends of intermediate lever (24) extend to the outside of end block (7) at both ends respectively, and the one end of intermediate lever (24) is provided with second actuating mechanism, and the other end of intermediate lever (24) is provided with adjustment mechanism, is provided with clutching mechanism between intermediate lever (24) and commentaries on classics cover (6).

2. The pneumatic hydraulic pump according to claim 1, wherein the clutch mechanism comprises an intermediate cylinder (26) arranged on the side inner wall of the sliding cavity (14), the side outer wall of the intermediate cylinder (26) is provided with a bidirectional threaded groove (28), and the side inner wall of the sliding cavity (14) is fixedly connected with a sliding block (27) which is slidably connected with the side inner wall of the bidirectional threaded groove (28).

3. The pneumatic hydraulic pump according to claim 2, characterized in that a through hole (29) is formed in the middle cylinder (26), the middle rod (24) is slidably connected to the inner side wall of the through hole (29), four limit keys (33) are uniformly distributed in a ring shape on the outer side wall of the middle rod (24) located in the sliding cavity (14), and limit key grooves (30) matched with the limit keys (33) are formed in the inner side wall of the through hole (29).

4. The pneumatic hydraulic pump according to claim 3, characterized in that the middle rod (24) is internally provided with a cylindrical cavity, one end of the cylindrical cavity facing the adjusting mechanism is of an open structure, the inner wall of one end of the cylindrical cavity is rotatably connected with the rotating rod (21), the outer wall of the side surface of the rotating rod (21) is provided with two thread grooves, the two thread grooves are axially and symmetrically distributed along the middle surface of the air chamber (5), the spiral directions of the two thread grooves are opposite, and the side surfaces of the two thread grooves are respectively provided with a matched precession ring (35).

5. The pneumatic hydraulic pump according to claim 4, wherein the outer wall of the side surface of the middle rod (24) on one side of the thread groove is provided with a strip-shaped sliding groove (31) which is distributed in a staggered manner with the limiting key (33), the outer wall of the side surface of the screwing ring (35) is fixedly connected with a clamping block (32) which is connected with the inner wall of the side surface of the strip-shaped sliding groove (31) in a sliding manner, and the end part of the middle cylinder (26) is provided with a clamping block (32) which is matched with the clamping block (32).

6. The pneumatic hydraulic pump according to claim 5, characterized in that the second driving mechanism comprises a driving shell (9) fixedly connected to the outer wall of the side surface of the end block (7), a driving motor (11) is connected to the inner wall of one side of the driving shell (9) through a telescopic rod, a precession rod (10) connected to the driving shell (9) through a thread is rotatably connected to the outer wall of one side of the driving motor (11), a first rotating handle is arranged at the other end of the precession rod (10), and a first connecting unit is arranged between the output shaft of the driving motor (11) and one end of the intermediate rod (24).

7. A pneumatic hydraulic pump according to claim 6, characterized in that the adjusting mechanism comprises an end housing (23) fixedly connected to the outer wall of the side face of the end block (7), and a swivel (22) is slidably connected to one side of the end housing (23), and a second connecting unit is arranged between one end of the swivel (22) and one end of the swivel lever (21).

8. The pneumatic hydraulic pump according to claim 7, wherein the first connecting unit comprises a pressing shell (37) and a connecting block (12), the connecting head (8) is connected to the inner side wall of the pressing shell (37) through a spring, the outer side wall of the connecting head (8) is provided with transmission keys which are uniformly distributed in an annular shape, the outer side wall of the connecting block (12) is provided with a connecting groove (38) matched with the connecting head (8), and the second connecting unit is identical to the first connecting unit in structure.

9. The pneumatic hydraulic pump according to any one of claims 1 to 8, characterized in that the side outer walls of the piston column (19) on both sides of the piston block (16) are provided with annular grooves, the side inner walls of the annular grooves are rotatably connected with the rotating sleeve (6), one end of the side outer wall of the rotating sleeve (6) close to the piston block (16) is fixedly connected with connecting rods (17) which are uniformly distributed in an annular shape, the other end of the connecting rod (17) is fixedly connected with a scraping block (15), the vertical section of the scraping block (15) is of a trapezoidal structure, and the side outer wall of the scraping block (15) is in contact with the side inner wall of the air chamber (5).

10. The pneumatic hydraulic pump according to claim 9, wherein the outer wall of the side surface of the rotating sleeve (6) is provided with at least two spiral grooves (36) which are uniformly distributed in an annular shape, and the inner wall of the side surface of the press sealing block (18) is fixedly connected with a fixing block which is slidably connected to the inner wall of the side surface of the spiral groove (36).

Technical Field

The invention relates to the technical field of hydraulic pumps, in particular to a pneumatic hydraulic pump.

Background

The pneumatic hydraulic pump converts lower air pressure into high-pressure oil, namely, low air pressure at a large-area piston end is utilized to generate high hydraulic pressure at a small-area piston end, the pneumatic hydraulic pump can replace a manual or electric hydraulic pump to be matched with an anchor rope tensioning machine, an anchor withdrawing machine, an anchor rod tension meter or other hydraulic tools for use, the pneumatic hydraulic pump can be used for flushing water, filling oil or filling chemical media, the working principle of the pneumatic hydraulic pump is similar to that of a reciprocating circulating supercharger, a bottom piston of the pneumatic hydraulic pump is controlled by a two-position four-way pilot valve, the pneumatic hydraulic pump is a self-filling type pump, generally, an air pipeline lubricator is not needed to be used, when a driving piston runs upwards, liquid is sucked into the pump, at the moment, a one-way valve at an inlet is opened, an outlet one-way valve is closed, when the piston runs downwards, a certain pressure can be formed on one side of the liquid, the one-way valve at the inlet can be closed, and the one-way valve at the outlet can be opened.

The pneumatic hydraulic pump that has now usually carries out work through external air supply in order to provide power, however when using outdoors, when external air supply can't in time use because of the accident in order to provide power, pneumatic hydraulic pump then can't work, and then leads to pneumatic hydraulic pump to leave the unable use of air supply, and emergent ability is relatively poor.

Disclosure of Invention

Based on the technical problems in the prior art, the invention provides a pneumatic hydraulic pump.

The invention provides a pneumatic hydraulic pump, which comprises a pump body, wherein an air chamber is arranged in the pump body, the outer wall of the side surface of the pump body is fixedly connected with a reversing valve communicated with the air chamber, the reversing valve is connected with an air inlet connector, the inner wall of the side surface of the air chamber is connected with a piston block in a sliding manner, the outer wall of the side surface of the piston block is fixedly connected with a piston ring, the two ends of the pump body are both fixedly connected with end blocks, a press sealing block is arranged between the end blocks and the pump body, a hydraulic chamber communicated with the air chamber is arranged in the end block, the outer wall of the side surface of the hydraulic chamber is provided with a liquid outlet and a liquid inlet, one-way valves are respectively arranged in the liquid outlet and the liquid inlet, a round hole is formed in the axial lead position of the piston block of the pump body, a piston column is fixedly connected with the inner wall of the side surface of the round hole, the two ends of the piston column are respectively connected with the inner wall of the side surface of the hydraulic chamber on the two sides in a sliding manner, a sliding cavity is provided with a sliding cavity, the inner wall of the side face of the rod hole is connected with an intermediate rod in a sliding mode, two ends of the intermediate rod extend to the outer sides of end blocks at two ends respectively, a second driving mechanism is arranged at one end of the intermediate rod, an adjusting mechanism is arranged at the other end of the intermediate rod, and a clutch mechanism is arranged between the intermediate rod and the rotating sleeve.

Preferably, the clutch mechanism comprises a middle cylinder arranged on the inner wall of the side surface of the sliding cavity, the outer wall of the side surface of the middle cylinder is provided with a bidirectional threaded groove, and the inner wall of the side surface of the sliding cavity is fixedly connected with a sliding block connected to the inner wall of the side surface of the bidirectional threaded groove in a sliding mode.

Preferably, a through hole is formed in the middle barrel, the middle rod is connected to the inner wall of the side face of the through hole in a sliding mode, four limit keys which are uniformly distributed in an annular mode are arranged on the outer wall of the side face, located inside the sliding cavity, of the middle rod, and limit key grooves matched with the limit keys are formed in the inner wall of the side face of the through hole.

Preferably, the inside of intermediate lever is opened there is the cylinder chamber, and the cylinder chamber is open structure towards adjustment mechanism's one end, and the one end inner wall of cylinder chamber rotates and is connected with the bull stick, and the side outer wall of bull stick is opened has two thread grooves, and two thread grooves are along the mid-plane axial symmetry distribution of air chamber, and the spiral opposite direction of two helicla flutes all is provided with the precession circle of looks adaptation.

Preferably, the side outer wall of the middle rod on one side of the thread groove is provided with a strip-shaped sliding groove which is distributed in a staggered manner with the limiting key, the side outer wall of the screwing ring is fixedly connected with a clamping block which is connected to the side inner wall of the strip-shaped sliding groove in a sliding manner, and the end part of the middle cylinder is provided with a clamping block which is matched with the clamping block.

Preferably, the second driving mechanism comprises a driving shell fixedly connected to the outer wall of the side face of the end block, the inner wall of one side of the driving shell is connected with a driving motor through a telescopic rod, the outer wall of one side of the driving motor is rotatably connected with a precession rod connected to the driving shell through threads, the other end of the precession rod is provided with a first rotating handle, and a first connecting unit is arranged between the output shaft of the driving motor and one end of the intermediate rod.

Preferably, the adjusting mechanism comprises an end shell fixedly connected to the outer wall of the side face of the end block, a rotating shaft is connected to one side of the end shell in a sliding mode, and a second connecting unit is arranged between one end of the rotating shaft and one end of the rotating rod.

Preferably, first coupling unit is including pressing shell and connecting block, and presses the side inner wall of shell to have the connector through spring coupling, and the side outer wall of connector is provided with annular evenly distributed's transmission key, and the side outer wall of connecting block is opened has the spread groove with connector looks adaptation, and second coupling unit is the same with first coupling unit structure.

Preferably, the piston post is located the side outer wall of piston block both sides and all opens there is the ring channel, and the side inner wall of ring channel rotates and is connected with changes the cover, changes the one end fixedly connected with annular evenly distributed's that the side outer wall of cover is close to the piston block connecting rod, and the piece is scraped to the other end fixedly connected with of connecting rod, scrapes the perpendicular cross-section of piece and is the trapezium structure, scrapes the side outer wall of piece and contacts with the side inner wall of air chamber.

Preferably, the outer wall of the side surface of the rotating sleeve is provided with at least two spiral grooves which are uniformly distributed in an annular shape, and the inner wall of the side surface of the press sealing block is fixedly connected with a fixing block which is connected to the inner wall of the side surface of the spiral groove in a sliding manner.

The beneficial effects of the invention are as follows: through setting up second actuating mechanism, when normal use, clutching mechanism separation can carry out drive work through the air supply, when the air supply was because of the accident when unable using, then can merge clutching mechanism to through motor drive work, improved the emergent ability of whole pneumatic hydraulic pump through the working method of dual drive.

Drawings

Fig. 1 is a sectional view showing an internal structure of a pneumatic hydraulic pump according to the present invention;

FIG. 2 is a partial structural view of a middle cylinder of a pneumatic hydraulic pump according to the present invention;

FIG. 3 is a partial structural view of a middle rod of a pneumatic hydraulic pump according to the present invention;

FIG. 4 is a schematic diagram of a swivel sleeve structure of a pneumatic hydraulic pump according to the present invention;

fig. 5 is a schematic structural diagram of a first connection unit of a pneumatic hydraulic pump according to the present invention.

In the figure: 1 pump body, 2 air inlet interfaces, 3 piston rings, 4 reversing valves, 5 air chambers, 6 rotating sleeves, 7 end blocks, 8 connectors, 9 driving shells, 10 precession rods, 11 driving motors, 12 connecting blocks, 13 hydraulic chambers, 14 sliding cavities, 15 scraping blocks, 16 piston blocks, 17 connecting rods, 18 press-sealing blocks, 19 piston columns, 20 liquid inlets, 21 rotating rods, 22 rotating shafts, 23 end shells, 24 middle rods, 25 liquid outlets, 26 middle cylinders, 27 sliding blocks, 28 bidirectional threaded grooves, 29 through holes, 30 limiting key grooves, 31 strip-shaped sliding grooves, 32 clamping blocks, 33 limiting keys, 34 clamping grooves, 35 precession rings, 36 spiral grooves, 37 press shells and 38 connecting grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-5, a pneumatic hydraulic pump comprises a pump body 1, an air chamber 5 is arranged inside the pump body 1, a reversing valve 4 communicated with the air chamber 5 is fixedly connected to the outer side wall of the pump body 1, the reversing valve 4 is connected with an air inlet interface 2, a piston block 16 is slidably connected to the inner side wall of the air chamber 5, a piston ring 3 is fixedly connected to the outer side wall of the piston block 16, end blocks 7 are fixedly connected to both ends of the pump body 1, a sealing block 18 is arranged between the end blocks 7 and the pump body 1, a hydraulic chamber 13 communicated with the air chamber 5 is arranged inside the end blocks 7, a liquid outlet 25 and a liquid inlet 20 are arranged on the outer side wall of the hydraulic chamber 13, check valves are respectively arranged in the liquid outlet 25 and the liquid inlet 20, a circular hole is opened on the axis of the piston block 16 of the pump body 1, a piston column 19 is fixedly connected to the inner side wall of the circular hole, both ends of the piston column 19 are respectively slidably connected to the inner side walls of the hydraulic chambers 13 on both sides, the piston column 19 is internally provided with a sliding cavity 14, rod holes are formed in two ends of the sliding cavity 14, an intermediate rod 24 is connected to the inner wall of the side face of each rod hole in a sliding mode, two ends of the intermediate rod 24 extend to the outer sides of the end blocks 7 at the two ends respectively, a second driving mechanism is arranged at one end of the intermediate rod 24, an adjusting mechanism is arranged at the other end of the intermediate rod 24, and a clutch mechanism is arranged between the intermediate rod 24 and the rotating sleeve 6.

In the invention, the clutch mechanism comprises a middle cylinder 26 arranged on the inner wall of the side surface of the sliding cavity 14, the outer wall of the side surface of the middle cylinder 26 is provided with a bidirectional threaded groove 28, and the inner wall of the side surface of the sliding cavity 14 is fixedly connected with a sliding block 27 connected with the inner wall of the side surface of the bidirectional threaded groove 28 in a sliding manner.

Wherein, the inside of middle section of thick bamboo 26 is opened has through hole 29, and intermediate lever 24 sliding connection is in the side inner wall of through hole 29, and the side outer wall that intermediate lever 24 is located sliding chamber 14 inside is provided with four annular evenly distributed's spacing key 33, and the side inner wall of through hole 29 is opened has the spacing keyway 30 with spacing key 33 looks adaptation.

Wherein, the inside of intermediate lever 24 is opened there is the cylinder chamber, and the cylinder chamber is open structure towards adjustment mechanism's one end, and the one end inner wall in cylinder chamber rotates and is connected with bull stick 21, and the side outer wall of bull stick 21 is opened there are two thread grooves, and two thread grooves are along the mid-plane axial symmetric distribution of air chamber 5, and the spiral opposite direction of two helicla flutes all is provided with the precession circle 35 of looks adaptation.

The outer wall of the side surface of the middle rod 24 on one side of the threaded groove is provided with a strip-shaped sliding groove 31 which is distributed in a staggered mode with the limiting key 33, the outer wall of the side surface of the screwing ring 35 is fixedly connected with a clamping block 32 which is connected to the inner wall of the side surface of the strip-shaped sliding groove 31 in a sliding mode, and the end portion of the middle cylinder 26 is provided with the clamping block 32 matched with the clamping block 32.

The second driving mechanism comprises a driving shell 9 fixedly connected to the outer wall of the side face of the end block 7, the inner wall of one side of the driving shell 9 is connected with a driving motor 11 through a telescopic rod, the outer wall of one side of the driving motor 11 is rotatably connected with a precession rod 10 connected to the driving shell 9 through threads, the other end of the precession rod 10 is provided with a first rotating handle, and a first connecting unit is arranged between the output shaft of the driving motor 11 and one end of an intermediate rod 24.

The adjusting mechanism comprises an end shell 23 fixedly connected to the outer wall of the side face of the end block 7, a rotating shaft 22 is connected to one side of the end shell 23 in a sliding mode, and a second connecting unit is arranged between one end of the rotating shaft 22 and one end of the rotating rod 21.

Wherein, first coupling unit is including pressing shell 37 and connecting block 12, and presses shell 37's side inner wall to have connector 8 through spring coupling, and the side outer wall of connector 8 is provided with annular evenly distributed's transmission key, and the side outer wall of connecting block 12 is opened has the spread groove 38 with connector 8 looks adaptation, and the second coupling unit is the same with first coupling unit structure.

Wherein, the side outer wall that piston post 19 is located piston block 16 both sides all opens has the ring channel, and the side inner wall of ring channel rotates and is connected with changes cover 6, changes the one end fixedly connected with annular evenly distributed's of cover 6 side outer wall near piston block 16 connecting rod 17, and the other end fixedly connected with of connecting rod 17 scrapes piece 15, scrapes the vertical cross-section of piece 15 and is the trapezium structure, scrapes the side outer wall of piece 15 and contacts with the side inner wall of air chamber 5.

Wherein, the outer wall of the side of the rotating sleeve 6 is provided with at least two spiral grooves 36 which are uniformly distributed in a ring shape, and the inner wall of the side of the press sealing block 18 is fixedly connected with a fixed block which is connected with the inner wall of the side of the spiral groove 36 in a sliding way.

When the invention is used: when the piston cylinder is normally used, the second connecting unit is firstly enabled by pressing the rotary shaft 22, then the rotary shaft 22 is rotated to rotate the rotary rod 21, the two precession rings 35 are enabled to move away from each other relatively by rotating the rotary rod 21, at the moment, the clamping block 32 is separated from the clamping groove 34, the air inlet interface 2 is externally connected with an air source, air supplied by the air source enters the air chamber 5 through the reversing valve 4 to further drive the piston block 16 to reciprocate, the piston cylinder 19 is driven to reciprocate through the piston block 16, the liquid inlet and outlet operation of the pump is further carried out through the liquid inlet 20 and the liquid outlet 25, at the moment, the sliding block 27 is clamped in the bidirectional spiral groove 28, and when the piston cylinder 19 reciprocates, the middle cylinder 26 can reciprocate along with the piston cylinder 19;

when no air source supplies air, the rotating shaft 22 is pressed to enable the second connecting unit to be combined, the rotating shaft 22 is rotated to enable the two screwing rings 35 to move oppositely, the two screwing rings 35 gradually extrude the piston block 16 to enable the piston block 16 to move to the middle position of the air chamber 5, the clamping blocks 32 on the two sides can be clamped into the corresponding clamping grooves 34 at the moment, the screwing rod 10 is rotated afterwards, the screwing rod 10 drives the driving motor 11 to move and enable the first connecting unit to be combined, then the driving motor 11 can drive the middle rod 24 to rotate through rotation, and further the middle cylinder 26 is driven to rotate, so that the sliding block 27 moves along the bidirectional threaded groove 28, the piston column 19 is driven to reciprocate, and further liquid inlet and outlet operations of the pump are performed;

when the piston block 16 moves, the rotating sleeve 6 can be driven to rotate in a reciprocating mode through the matching of the spiral groove 36 and the fixing block, so that the scraping block 15 can be driven to move, the cleaning of the side wall of the air chamber 5 can be guaranteed through the motion of the scraping block 15, and the phenomenon that the service life of the piston ring 3 is affected due to the fact that the side wall of the air chamber 5 is deposited dust because of the fact that the gas introduced by the gas source contains impurities is prevented.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.