CN106015148B - The positive and negative hydraulic driver of shrinkage cable sealing cap installation tool - Google Patents
The positive and negative hydraulic driver of shrinkage cable sealing cap installation tool Download PDFInfo
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- CN106015148B CN106015148B CN201610634285.3A CN201610634285A CN106015148B CN 106015148 B CN106015148 B CN 106015148B CN 201610634285 A CN201610634285 A CN 201610634285A CN 106015148 B CN106015148 B CN 106015148B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
- F16K11/0856—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug having all the connecting conduits situated in more than one plane perpendicular to the axis of the plug
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanically-Actuated Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of positive and negative hydraulic driver of shrinkage cable sealing cap installation tool, and it is made up of body, hydraulic pump module, negative pressure output precision and adjustable pressure-limiting valve, and pedal is installed on outside body；Hydraulic pump module is made up of piston pump and fuel tank, and piston pump is by pedal-driven；Negative pressure output precision includes fluid pressure type negative pressure cylinder, and fluid pressure type negative pressure cylinder input is connected with piston pump, and is connected through valve I with fuel tank, and input is connected with negative pressure out splice going splice, and is connected through valve III with air inlet, and it is driven by hydraulic oil and exports negative pressure；The input of adjustable pressure-limiting valve is connected with piston pump, and output end is connected with hydraulic oil out splice going splice, is also connected through valve II with fuel tank, and it is used to ensure that piston pump is preferably that fluid pressure type negative pressure cylinder provides hydraulic oil.Which simplify the structure of positive and negative hydraulic driver, reduce equipment integral into and fault rate；It relies primarily on foot-operated completion, improves the installation effectiveness of shrinkage cable sealing cap, and its is compact-sized, is easy to carry, using flexible.
Description
Technical field
The present invention relates to cable installing area, more particularly to one kind to provide positive and negative press for shrinkage cable sealing cap installation tool
The drive device of power.
Background technology
Shrinkage cable sealing cap is installed on electric power, communication and the terminal for controlling cable, is provided for cable end piece cost-effective
The protective action such as sealing, waterproof, anti-oxidation, because it has good contraction elasticity, material is more soft, is connect with cable end piece
More docile, tight, stress variation caused by the available buffer temperature difference to a certain extent is touched, service life is more permanent, certainly will will
As the main product of following cable end piece Seal treatment.
Existing shrinkage cable sealing cap structure and mounting means are there is also certain irrationality, i.e., in shrinkage cable sealing cap
Spiral support thing need to be set before dispatching from the factory so that shrinkage cable sealing cap is in high-tension state, its bullet all the time before installing and using
Property be easy to by permanent damage and influence the sealing effectiveness after installation, can not be continuing with and report if storage for a long time
It is useless, and because the spiral support thing in each shrinkage cable sealing cap is individually default, extract spiral support thing out during installation
And abandon, it is impossible to recycle, add the integral manufacturing cost of shrinkage cable sealing cap, also result in certain waste of material.
Therefore, the patent of invention of Application No. 2016105629470 discloses a kind of installation tool of shrinkage cable sealing cap, on overcoming
Deficiency is stated, referring to shown in Fig. 1, the installation tool of this shrinkage cable sealing cap is driven by interior expanded support part 2, outer adsorption piece 3 and positive/negative-pressure
Device 1 is formed, and the rubber sleeve in interior expanded support part 2 is filled with high pressure liquid force feed and expanded, so as to expand shrinkage cable sealing cap
Support, drives the post cavity wall of the outer wall and absorbing cylinder in outer adsorption piece 3 of shrinkage cable sealing cap to be pressed close to, and outer adsorption piece 3 can be by negative
Pressure, which adsorbs shrinkage cable sealing cap outer wall, fixes, and shrinkage cable sealing cap still keeps expanded support state after making the interior taking-up of expanded support part 2, most
Cable end piece is inserted into shrinkage cable sealing cap afterwards, the negative pressure in outer adsorption piece 3 is eliminated, make shrinkage cable sealing cap natural shrinking and
Close be nested with completes to install in cable end piece.After by the installation tool, shrinkage cable sealing cap is without default built-in spiral shell
Supporter is revolved, reduces the cost of manufacture of shrinkage cable sealing cap；And temporarily to shrinkage electricity only during shrinkage cable sealing cap is installed
Cable sealing cap carries out suitable expanded support, can't cause permanent damage to the elasticity of shrinkage cable sealing cap, improves shrinkage cable envelope
Stability after cap installation, therefore the appearance of the installation tool of the shrinkage cable sealing cap is significant.
In the installation tool work of above-mentioned shrinkage cable sealing cap, the high pressure liquid of the interior need of work of expanded support part 2 presses oil, is outer
The negative pressure of the need of work of adsorption piece 3 provides by positive and negative hydraulic driver 1, it is seen that positive and negative hydraulic driver 1 is in the installation tool
In bear highly important task.Positive and negative hydraulic driver 1 should possess in the installation tool workflow of shrinkage cable sealing cap
And following basic functions can be realized successively：1. providing high pressure liquid force feed for interior expanded support part 2,2. provided for outer adsorption piece 3 negative
Pressure, the high pressure liquid in interior expanded support part 2 is 3. pressed oil into removal, 4. by the negative pressure removal in outer adsorption piece 3；Using existing oil pump and
Negative pressure pump can realize above-mentioned basic function, but oil pump and negative pressure pump are two sets of independent equipment, it is necessary to be operated respectively, behaviour
Make more to bother, use is not convenient enough, have impact on the installation effectiveness of shrinkage cable sealing cap, and adds the peace of shrinkage cable sealing cap
The holistic cost of holding tool.
For again it, due to installation shrinkage cable sealing cap when, be to be carried out in the environment of not possessing Power Supplies Condition mostly, therefore
Positive and negative hydraulic driver should preferentially use manual drive, in being worked in the installation tool of shrinkage cable sealing cap, interior expanded support part
It need to be held with outer adsorption piece, therefore positive and negative hydraulic driver preferentially should be driven using foot-operated mode；In addition, the peace of shrinkage cable sealing cap
Holding tool should have good portability, flexibly be shifted in order to the scene according to cable laying；When using current
Oil pump and negative pressure pump, which are used as positive and negative hydraulic driver, obviously can not take into account above-mentioned requirements.It can be seen that research and development are a kind of multiple functional, behaviour
It is convenient to make, compact-sized, and portable positive and negative hydraulic driver is extremely necessary.
The content of the invention
It is an object of the invention to provide a kind of scientific structure, compact, can meet shrinkage cable sealing cap installation tool
Function needed for use, and it is easy to operate, cost is cheap, is easy to carry, and is beneficial to improve shrinkage cable sealing cap installation effectiveness
Positive and negative hydraulic driver.
To realize above-mentioned technical purpose, the present invention adopts the following technical scheme that：
A kind of positive and negative hydraulic driver of shrinkage cable sealing cap installation tool, it includes：
Body, body is installed on outside can automatically reset pedal；
Hydraulic pump module, it is formed by piston pump and with the fuel tank that piston pump input connects, and the piston rod of piston pump prolongs
It is outer and by pedal-driven to extend body, pedal depresses and in reseting procedure, piston pump is correspondingly completed oil extraction and acted with oil suction, fuel tank
Reservoir port by with switch air admission hole fuel tank cap block；
Negative pressure output precision, it includes a fluid pressure type negative pressure cylinder, the plunger shaft inside fluid pressure type negative pressure cylinder with column,
A rodless piston is provided with plunger shaft, the rear side of rodless piston is provided with high pressure thrust spring；The front end of plunger shaft is removed and piston pump
Output end be connected outer, be also connected through valve I with fuel tank；The rear end of plunger shaft with negative pressure out splice going splice in addition to being connected, also through valve III
It is connected with an air inlet；On front side of rodless piston after input hydraulic pressure oil, high pressure thrust spring passive is compressed and progressivelyes reach accumulation of energy shape
State；After valve I is opened, the oil pressure on front side of rodless piston eliminates, and high pressure thrust spring provides forward thrust for rodless piston makes no bar
Negative pressure is produced on rear side of piston；After valve III is opened, the negative pressure on rear side of rodless piston eliminates；
Adjustable pressure-limiting valve, its input are connected with the output end of piston pump, and its output end is removed to be connect with hydraulic oil output
Head is also connected outside being connected through valve II with fuel tank；Adjustable pressure-limiting valve is after default engaging pressure threshold value, it is ensured that piston pump exports
Hydraulic oil preferentially flow to fluid pressure type negative pressure cylinder, drive high pressure thrust spring-compressed to energy accumulating state, the hydraulic oil then exported
Again hydraulic oil out splice going splice is flowed to through adjustable pressure-limiting valve；After valve II is opened, the oil pressure of the output end of adjustable pressure-limiting valve eliminates；
Piston pump, fuel tank, fluid pressure type negative pressure cylinder and adjustable pressure-limiting valve are placed in internal body；And valve I, valve II, valve
III is exposed with the operating element and reservoir port, air inlet, negative pressure out splice going splice, hydraulic oil out splice going splice of adjustable pressure-limiting valve
In outside body.
Originally the operation principle of positive and negative hydraulic driver and operating process are：
1), before the installation of shrinkage cable sealing cap, first by the installation tool of this positive and negative hydraulic driver and shrinkage cable sealing cap
Interior expanded support part, outer adsorption piece be attached, will in expanded support part oil inlet and outlet and the present apparatus in hydraulic oil out splice going splice
It is connected through pipeline road, by the air inlet/outlet in outer adsorption piece with the negative pressure out splice going splice in this positive and negative hydraulic driver through negative pressure
Pipeline is connected；
2), reciprocal pushes pedals, piston pump work and output hydraulic pressure is oily, due to adjustable pressure-limiting valve pressure limiting act on,
Piston pump output hydraulic pressure oil is set to flow first to fluid pressure type negative pressure cylinder, rodless piston is pressed oil by front side high pressure liquid to be promoted and be moved back
Dynamic, the air on rear side of rodless piston drains into the external world, high pressure thrust bullet through negative pressure out splice going splice, negative pressure line and outer adsorption piece successively
Spring is increasingly compressed to energy accumulating state, and now fluid pressure type negative pressure cylinder is to produce negative pressure the later stage to have carried out sufficient preparation；
3), continue pushes pedals, as the oil pressure of piston pump output terminal gradually rises and open adjustable pressure-limiting valve, it is living
The hydraulic oil of pump output is filled in successively through expanded support part in adjustable pressure-limiting valve, hydraulic oil out splice going splice, pipeline road inflow, and then make
Rubber sleeve implements expanded support to shrinkage cable sealing cap, when the outer wall of shrinkage cable sealing cap tightly contacts with the post cavity wall of absorbing cylinder
When, stop pushes pedals, rubber sleeve keeps existing shape because internal hydraulic pressure oil maintains existing pressure；
4), opening valve I, the plunger shaft front end of fluid pressure type negative pressure cylinder connect with fuel tank, the hydraulic oil pressure on front side of rodless piston
Power is eliminated, and rodless piston is had the trend moved forward by the forward thrust of high pressure thrust spring, and then is made on rear side of rodless piston
Negative pressure is produced, outer adsorption piece firmly adsorbs the outer wall of shrinkage cable sealing cap；
5), opening valve II, the output end of adjustable pressure-limiting valve connect with fuel tank, and rubber sleeve depends on natural resiliency to shrink, interior
Hydraulic oil in expanded support part is back in fuel tank, and then can be extracted rubber sleeve out from shrinkage cable sealing cap, and now valve I is still protected
Opening is held, shrinkage cable sealing cap keeps expanded support state because outer wall is still adsorbed by outer adsorption piece, then by cable end piece
Insert in shrinkage cable sealing cap；
6), opening valve III, the piston cavity rear end of fluid pressure type negative pressure cylinder are connected with air inlet, and air can be exported through negative pressure and connect
Head, negative pressure line enter in outer adsorption piece, and then the negative pressure in outer adsorption piece is eliminated, shrinkage cable sealing cap lean on natural resiliency and
Shrink and be fixed in cable end piece, complete the installation of shrinkage cable sealing cap, valve I is still kept it turned on, and treats fluid pressure type negative pressure cylinder
In hydraulic oil be back in fuel tank after turn off valve I, it is ensured that high pressure thrust spring recovers to extended configuration, to ensure that high pressure pushes away
The elastic performance of power spring maintains for a long time.
Furthermore, the tail end through connecting rod mechanism of described pedal is fixed on the upside of body, on the downside of pedal middle front part then
Provided with a free bearing, the piston rod upper end of the free bearing and piston pump is hinged；Thus one, pedal can both rotate, can also be in water
Square upwards enter line displacement, so as to ensure that piston rod moves back and forth in vertical direction；Inner angular region between pedal and body
In be installed on a V-arrangement fillet shell fragment, the both ends of V-arrangement fillet shell fragment are connected with pedal, body respectively, and V-arrangement fillet shell fragment is used for
Pedal is driven to be reset to lifting status.
Furthermore, described valve I is manual switch valve, i.e., it, which has, opens, closes two states, two states
Switching need to rely on external force operation；Described valve II, valve III are normally closed switch valve, i.e., valve II, valve III need outer power to maintain opening state
State, valve II and valve III can automatically reset to closed mode after external force disappears.
Furthermore, described valve I, valve II are designed with valve III using integrated form, i.e., valve I, valve II and valve III share one
Cover valve pocket and valve element and be integrated into a fourth gear valve, valve pocket is fixed in body through bearing, and valve element is located in the valve pocket of valve pocket, valve pocket
Axially it is relatively fixed, but can relatively rotates with valve element, valve element front end is provided with the valve rod being coaxial therewith, and valve rod is with being exposed to outside body
Operating mechanism be connected；The both sides of valve pocket are respectively provided with three axially distributed joints communicated with valve pocket, and six joints are with valve
What is covered is substantially symmetrical about its central axis；Every two relative joints are one group, are followed successively by from the front to the back：
I group of joint, is connected between the plunger shaft front end of fluid pressure type negative pressure cylinder and fuel tank；
II group of joint, is connected between adjustable pressure-limiting valve output end and fuel tank；
III group of joint, is connected between the piston cavity rear end of fluid pressure type negative pressure cylinder and air inlet；
Valve element is provided with valve opening I, valve opening II and valve opening III from the front to the back vertically；Valve element is set according to the difference of conducting situation
There are four stations, valve element often rotates 45 degree of switchings, one station, is followed successively by：
O shelves, I group of joint, II group of joint and III group of joint are in cut-off state, and I group of joint is in only in O shelves and cut
Only state；
I grade, I group of joint connects through valve opening I, and II group of joint and III group of joint are in cut-off state；
II grade, I group of joint connects through valve opening I, and II group of joint connects through valve opening II, and III group of joint is in cut-off state；
III grade, I group of joint connects through valve opening I, and II group of joint is in cut-off state, and III group of joint connects through valve opening III；
Valve element often rotates 180 degree, and initial station is returned to after O shelves to III grade of experience, one circulation.
Furthermore, operating mechanism is knob, and body is provided with to be identified with the gear of knobs fit.
Furthermore, operating mechanism is foot-operated gearshift, and it includes a change pedal, the tail end of change pedal
Provided be secured to connection pedal shaft, pedal shaft through the axle bed on body fix and with the valve rod keeping parallelism of valve element front end；
A V-arrangement fillet for being used to drive change pedal to be reset to lifting status is installed in inner angular region between change pedal and body
Shell fragment；One end of pedal shaft extends to internal body and the unidirectional tooth coaxial with pedal shaft is installed in tail end through axle bed
Wheel, pedal shaft drives ratchet synchronous axial system when change pedal depresses, and ratchet does not rotate when change pedal resets；Valve rod
Front end be provided with a driven gear, the driven gear engages with ratchet；It is provided between change pedal and body and limits gearshift
The angle limit mechanism of pedal rotating distance, makes change pedal often depress once, and driven gear rotates 45 degree, and valve element switches one
Station.
Furthermore, one end that pedal shaft is extended in body is fixed with a nebenkern, and ratchet covers in a ring
Put on nebenkern, both are coaxial, and the inner hole wall of ratchet is provided with the teeth groove that a circle depression is formed, and spine is provided with teeth groove
Tooth, some ratchets are installed on the perisporium of nebenkern and drive ratchet to recline the shell fragment of ratchet；When stepping on change pedal, ratchet with
Ratchet supports cooperation and makes ratchet with nebenkern synchronous axial system；When change pedal reset is lifted, ratchet is matched somebody with somebody with Ratchet slide
Close, ratchet is under drag effect without with nebenkern and pedal shaft rotation；Simultaneously as ratchet and tooth socket fit so that
Nebenkern is axially relatively fixed with ratchet.
Furthermore, angle limit mechanism by one limit change pedal lift maximum angle spacing jacking block and one
Limit the caging bolt composition that change pedal pushes minimum angles；Spacing jacking block is arranged on the tail end of change pedal, when itself and machine
After being supported at the top of body, change pedal can not continue lifting；Caging bolt is located at the downside of change pedal, itself and one at the top of body
Individual screw screw thread coordinates, and can not continue to rotate down when change pedal, which presses to, to be supported with caging bolt；Caging bolt leads to
The position on the adjustable top of rotation is crossed, to ensure that change pedal is trampled once, driven gear rotates 45 degree, valve element switching one
Individual station.
Furthermore, an instruction disk being coaxial therewith is fixed with valve rod, indicates that the perisporium of disk is labeled with and valve element work
Gear mark corresponding to position, and body exterior portion is provided with a form, when valve element often switches to a station, corresponding gear mark is proper
It can be recognized at form well.
Compared with conventional art, it has the advantages that the present invention：This positive and negative hydraulic driver has output negative pressure
And the dual-use function of output hydraulic pressure oil, it can meet that shrinkage cable sealing cap installation tool is aligned needed for the function of negative pressure driven devices；
The present apparatus is the equipment of a single globality, and structure is compacter, is easy to carry, and use is more flexible；Its export negative pressure and
Output hydraulic pressure oil is realized by the same press pump component of liquid, simplifies the structure of positive and negative hydraulic driver, reduce integral into
This, easily facilitates and operates with, and effectively reduce the fault rate of equipment；When it uses manual drive, rely primarily on foot-operated complete
Into so that shrinkage cable sealing cap installation tool using when use both hands and feet, reduce operation difficulty, improve shrinkage cable sealing cap
Installation effectiveness.Sum it up, the positive and negative hydraulic driver compact of this shrinkage cable sealing cap installation tool, simple in construction, work(
Perfect, the simple operation of energy, it is flexibly portable, there is significant practicality.
Brief description of the drawings
The structural representation of the existing shrinkage cable sealing cap installation tools of Fig. 1.
Fig. 2 is the structural representation of positive and negative hydraulic driver.
Fig. 3 is the connection diagram of each part in positive and negative hydraulic driver.
Fig. 4 is the structural representation of piston pump.
Fig. 5 is the structural representation of fluid pressure type negative pressure cylinder.
Fig. 6 is the structural representation of adjustable pressure-limiting valve.
Fig. 7 is the schematic diagram after negative pressure driven devices combine with interior expanded support part and outer adsorption piece.
Fig. 8 is that valve I, valve II and valve III use the structural representation that integral structure is fourth gear valve.
Fig. 9 is connected state schematic diagram when fourth gear valve is in O shelves.
Figure 10 is connected state schematic diagram when fourth gear valve is in I grade.
Figure 11 is connected state schematic diagram when fourth gear valve is in II grade.
Figure 12 is connected state schematic diagram when fourth gear valve is in III grade.
Figure 13 is the connection diagram of fourth gear valve and miscellaneous part in positive and negative hydraulic driver.
Figure 14 is the structural representation when operating mechanism of fourth gear valve is knob.
Figure 15 is the structural representation of positive and negative hydraulic driver when the operating mechanism of fourth gear valve is knob.
Figure 16 is one of structural representation when operating mechanism is foot-operated gearshift.
Figure 17 is two of structural representation when operating mechanism is foot-operated gearshift.
Figure 18 is the cooperation schematic diagram of pedal shaft and ratchet.
Figure 19 is the structural representation of positive and negative hydraulic driver when operating mechanism is foot-operated gearshift.
Figure 20 is the structural representation set up on the valve rod of fourth gear valve after instruction disk.
Figure 21 is the structural representation that fourth gear valve sets up positive and negative hydraulic driver after instruction disk.
In figure, 1, positive and negative hydraulic driver, 2, interior expanded support part, 3, outer adsorption piece, 4, body, 5, piston rod, 6, V-arrangement fillet
Shell fragment, 7, linkage, 8, pedal, 9, adjustable pressure-limiting valve, 10, fuel tank cap, 11, switch air admission hole, 12, air inlet, 13, valve
I, 14, valve II, 15, valve III, 16, piston pump, 17, fuel tank, 18, reservoir port, 19, free bearing, 20, fluid pressure type negative pressure cylinder, 21, without bar
Piston, 22, high pressure thrust spring, 23, negative pressure out splice going splice, 24, hydraulic oil out splice going splice, 25, inlet port, 26, oil suction it is unidirectional
Valve, 27, the pump housing, 28, piston, 29, pump cover, 30, oil extraction check valve, 31, oil discharge outlet, 32, inlet, 33, valve ball, 34, reset
Spring, 35, valve body, 36, regulator bolts, 37, portable plate, 38, liquid outlet, 39, bearing, 40, valve element, 41, valve pocket, 42, valve opening
III, 43, III groups of joints, 44, II, 45, II group of joint of valve opening, 46, I, 47, I group of joint of valve opening, 48, bonnet, 49, valve rod, 50,
Knob, 51, gear mark, 52, driven gear, 53, ratchet, 54, pedal shaft, 55, change pedal, 56, spacing jacking block,
57th, teeth groove, 58, nebenkern, 59, shell fragment, 60, ratchet, 61, ratchet, 62, axle bed, 63, caging bolt, 64, instruction disk, 65, regard
Window.
Embodiment
Referring to shown in Fig. 2,3, a kind of positive and negative hydraulic driver of shrinkage cable sealing cap installation tool disclosed by the invention, its
Mainly it is made up of body 4, hydraulic pump module, negative pressure output precision and adjustable pressure-limiting valve 9；
Wherein, referring to shown in Fig. 2, being installed on outside body 4 can automatically reset to the pedal 8 of lifting status, and the pedal 8 is preferential
The top of body 4 is placed in, to be easy to trample；
Wherein, referring to shown in Fig. 2,3, hydraulic pump module is by piston pump 16 and the fuel tank 17 connected with the input of piston pump 16
Form, the piston rod 5 of piston pump 16 is extended to outside body 4 and driven by pedal 8；Pedal 8 depress with reseting procedure, piston pump
16 corresponding completion oil extractions act with oil suction；The reservoir port 18 of fuel tank 17 is blocked by the fuel tank cap 10 with switch air admission hole 11；Oil
Case 17 is used to store hydraulic oil, and piston pump 16 then can outwards export the hydraulic oil in fuel tank 17；
Wherein, referring to shown in Fig. 3,5, negative pressure output precision includes a fluid pressure type negative pressure cylinder 20, as its name suggests, fluid pressure type
Negative pressure cylinder 20 is inputted using hydraulic pressure as power, and exportable negative pressure；Concrete structure is that the inside of fluid pressure type negative pressure cylinder 20 has post
The plunger shaft of shape, plunger shaft is interior to be provided with a rodless piston 21, and the rear side of rodless piston 21 is provided with high pressure thrust spring 22；Plunger shaft
Front end in addition to being connected with the output end of piston pump 16, be also connected through valve I 13 with fuel tank 17；Remove defeated with negative pressure in the rear end of plunger shaft
It is connected outer to go out joint 23, is also connected through valve III 15 with an air inlet 12；The input hydraulic pressure into fluid pressure type negative pressure cylinder 20 of piston pump 16
When oily, rodless piston 21 by front side force feed drive and be moved rearwards, the passive compression of high pressure thrust spring 22 and progressively reach storage
Can state；After valve I 13 is opened, the front end of plunger shaft connects with fuel tank 17, and the oil pressure of the front side of rodless piston 21 eliminates, high pressure thrust
Spring 22 provides forward thrust for rodless piston 21 makes the rear side of rodless piston 21 produce negative pressure；After valve III 15 is opened, plunger shaft
Rear end connects with air inlet 12, and the negative pressure of the rear side of rodless piston 21 eliminates, i.e., the negative pressure at negative pressure out splice going splice 23 eliminates；
Wherein, referring to shown in Fig. 2,3, the input of adjustable pressure-limiting valve 9 is connected with the output end of piston pump 16；It is adjustable
The output end of pressure limiting valve 9 is also connected in addition to being connected with a hydraulic oil out splice going splice 24 through valve II 14 with fuel tank 17；Adjustable pressure limited
Valve 9 is after default engaging pressure threshold value, it is ensured that the hydraulic oil that piston pump 16 exports preferentially flows to fluid pressure type negative pressure cylinder 20, drives
High pressure thrust spring 22 is compressed to energy accumulating state, and the hydraulic oil then exported flows to hydraulic oil output through adjustable pressure-limiting valve 9 again
Joint 24, continue outwards output；After valve II 14 is opened, the oil pressure of the output end of adjustable pressure-limiting valve 9 eliminates, i.e., hydraulic oil exports
Oil pressure at joint 24 eliminates；
Referring to shown in Fig. 2, described valve I 13, valve II 14, valve III 15 and adjustable pressure-limiting valve 9 four main part with
And piston pump 16, fuel tank 17, fluid pressure type negative pressure cylinder 20 and the inside for being placed in body 4；Valve I 13, valve II 14, valve III 15 with can
The operating element (valve handle) and reservoir port 18 of mode pressure limiting valve 9, air inlet 12, negative pressure out splice going splice 23, hydraulic oil output connect
First 24 are both exposed to outside body 4, in order to operate.
Referring to shown in Fig. 4, in this positive and negative hydraulic driver, piston pump 16 is existing apparatus, and it, which includes one, has work
The pump housing 27 of chamber is filled in, the piston 28 of sealing and axial sliding fit is provided with plunger shaft, the upside of piston 28, which is connected with, drives its shifting
Dynamic piston rod 5, the upper end of the pump housing 27 are provided with the pump cover 29 for preventing that piston 28 from being deviate from by plunger shaft upper end, and pump cover 29 is provided with for living
The centre bore that stopper rod 5 extends, the pump housing 27 are provided with the inlet port 25 that is communicated with plunger shaft and oil discharge outlet 31, on inlet port 25
Provided with the oil sucting one-way valve 26 for only allowing hydraulic oil to be flowed into plunger shaft, oil discharge outlet 31, which is provided with, only allows hydraulic oil by piston
The oil extraction check valve 30 that chamber outwards flows；Inlet port 25 is the input of piston pump 16, and oil discharge outlet 31 is the output of piston pump 16
End.
Referring to shown in Fig. 6, in this positive and negative hydraulic driver, adjustable pressure-limiting valve 9 is existing apparatus, its structure with it is existing
Pressure valve is consistent, you can mode pressure limiting valve 9 includes a valve body 35, valve body 35 be provided with the inlet 32 that is communicated with valve pocket with
One liquid outlet 38, valve ball 33 is sequentially provided with valve pocket, the back-moving spring 34 of thrust is provided for ball valve, is the other end of back-moving spring 34
Portable plate 37, the regulator bolts 36 of regulation portable plate 37 position of support are provided, valve ball 33 is used for inlet 32 and liquid outlet
38 are blocked, and when the thrust that the end medium of inlet 32 is provided valve ball 33 is more than 34 thrust of back-moving spring, valve ball 33 is promoted, can
Mode pressure limiting valve 9 will be opened, i.e. inlet 32 connects with liquid outlet 38 through valve pocket, conversely, valve ball 33 is in reset state, it is adjustable
Formula pressure limiting valve 9 keeps cut-off state；Regulator bolts 36 coordinate with the screw screw thread on valve body 35, by rotating regulator bolts 36 i.e.
The position of adjustable plate 37, and then play the purpose of the switching threshold of adjustable pressure-limiting valve 9；Inlet 32 is as adjustable
The input of formula pressure limiting valve 9, liquid outlet 38 are the output end of adjustable pressure-limiting valve 9.
Referring to shown in Fig. 2, in this positive and negative hydraulic driver, the reservoir port 18 of fuel tank 17 is by with switch air admission hole 11
Fuel tank cap 10 blocks；Air admission hole 11 is switched, as its name suggests, it can carry out switching manipulation；When positive and negative hydraulic driver is not used,
Switch air admission hole 11 is closed, and is polluted hydraulic oil to avoid extraneous dust from entering in fuel tank 17, be it also avoid hydraulic pressure
Oil is by switching air admission hole 11 to outward leakage；In positive and negative hydraulic driver in use, switch air admission hole 11 is adjusted to opening,
Pressure balance is kept to ensure fuel tank 17 to be in communication with the outside.
Referring to shown in Fig. 3,7, the operation principle of the positive and negative hydraulic driver of this shrinkage cable sealing cap installation tool and operation
Flow is：
1), before the installation of shrinkage cable sealing cap, first by this positive and negative hydraulic driver and shrinkage cable sealing cap installation tool
Interior expanded support part, outer adsorption piece are attached, will in expanded support part 2 oil inlet and outlet and the hydraulic oil in this positive and negative hydraulic driver
Out splice going splice 24 is connected through pipeline road, and the air inlet/outlet in outer adsorption piece 3 and the negative pressure in this positive and negative hydraulic driver is defeated
Go out joint 23 through negative pressure line to be connected；
2), reciprocal pushes pedals 8, piston pump 16 works and output hydraulic pressure is oily, because the pressure limiting of adjustable pressure-limiting valve 9 is made
With making the output hydraulic pressure oil of piston pump 16 flow first to fluid pressure type negative pressure cylinder 20, rodless piston 21 is had elevated pressures by front side
Hydraulic oil is promoted and is moved rearwards, and the air of the rear side of rodless piston 21 is successively through negative pressure out splice going splice 23, negative pressure line and outer suction
Annex 3 drains into the external world, and high pressure thrust spring 22 is increasingly compressed to energy accumulating state, and now fluid pressure type negative pressure cylinder 20 is to produce in the later stage to bear
Pressure has carried out sufficient preparation；
3), continue pushes pedals 8, as the oil pressure of the output end of piston pump 16 gradually rises and open adjustable pressure-limiting valve 9
Open, the hydraulic oil that piston pump 16 exports flows into interior expand through adjustable pressure-limiting valve 9, hydraulic oil out splice going splice 24, pipeline road successively
Support member 2, and then make rubber sleeve in interior expanded support part 2 implement expanded support to shrinkage cable sealing cap, when shrinkage cable sealing cap outer wall with
When the inwall of absorbing cylinder tightly contacts in outer adsorption piece 3, stop pushes pedals 8, rubber sleeve remains existing due to internal hydraulic pressure oil
Pressure and keep existing shape；
4), opening valve I 13, the plunger shaft front end of fluid pressure type negative pressure cylinder 20 connect with fuel tank 17, the front side liquid of rodless piston 21
The pressure of force feed is eliminated, and rodless piston 21 is had the trend moved forward by the forward thrust of high pressure thrust spring 22, and then is made
The rear side of rodless piston 21 produces negative pressure, and negative pressure caused by fluid pressure type negative pressure cylinder 20 conveys through negative pressure out splice going splice 23, negative pressure line
To outer adsorption piece 3, absorbing cylinder is set firmly to adsorb the outer wall of shrinkage cable sealing cap；
5), opening valve II 14, the output end of adjustable pressure-limiting valve 9 connect with fuel tank 17, and rubber sleeve depends on natural resiliency to receive
Contract, hydraulic oil is back in fuel tank 17 in interior expanded support part 2, and then can extract rubber sleeve from shrinkage cable sealing cap out, due to valve I
13 remain in that opening, shrinkage cable sealing cap because outer wall is still firmly adsorbed by outer adsorption piece 3 and keeps expanded support state, and
Cable end piece is inserted in shrinkage cable sealing cap afterwards；
6), opening valve III 15, the piston cavity rear end of fluid pressure type negative pressure cylinder 20 connect with air inlet 12, and air can be defeated through negative pressure
Go out joint 23, negative pressure line enters in outer adsorption piece 3, and then eliminate the negative pressure in outer adsorption piece 3, shrinkage cable sealing cap is broken away from
The constraint of outer adsorption piece and depend on natural resiliency to shrink, be tightly fixed in cable end piece, that is, complete the installation of shrinkage cable sealing cap,
Now valve I 13 is still kept it turned on, and valve I is turned off after the hydraulic oil in fluid pressure type negative pressure cylinder 20 is back in fuel tank 17
13, it is ensured that high pressure thrust spring 22 recovers to extended configuration, to ensure that the elastic performance of high pressure thrust spring 22 maintains for a long time.
Referring to shown in Fig. 2,3,7, above-mentioned positive and negative hydraulic driver, it has the dual of output negative pressure and output hydraulic pressure oil
Function, it can meet that shrinkage cable sealing cap installation tool is aligned needed for the function of negative pressure driven devices；Originally positive and negative hydraulic driver is
The equipment of one single globality, structure is compacter, is easy to carry, and use is more flexible；It exports negative pressure and output hydraulic pressure
Oil is realized by the same press pump component of liquid, is simplified the structure of positive and negative hydraulic driver, is reduced holistic cost, more just
In operating with, and effectively reduce the fault rate of equipment；When it uses manual drive, major impetus relies on foot-operated input, makes
Shrinkage cable sealing cap installation tool using when use both hands and feet, reduce operation difficulty, improve the installation of shrinkage cable sealing cap
Efficiency.
In this positive and negative hydraulic driver tool, pedal 8 is used to drive piston rod 5 to move back and forth, and it has and automatically reset
To the function of lifting status, pedal 8 can be attached in the following way with body 4 and piston rod 5：
Referring to shown in Fig. 2,3,7, the tail end through connecting rod mechanism 7 of pedal 8 is fixed on the upside of body 4, the middle front part of pedal 8 downside
A free bearing 19 is then provided with, the free bearing 19 is connected with the upper end of piston rod 5 of piston pump 16 through rotating shaft；Thus one, pedal 8 can both be sent out
Raw rotation, can also enter line displacement in the horizontal direction, so as to ensure that piston rod 5 moves back and forth in vertical direction；Pedal 8 and machine
Be installed on a V-arrangement fillet shell fragment 6 in inner angular region between body 4, the both ends of V-arrangement fillet shell fragment 6 respectively with pedal 8, the phase of body 4
Connection, V-arrangement fillet shell fragment 6 are used to drive pedal 8 to be reset to lifting status.
Referring to shown in Fig. 3,7, in this positive and negative hydraulic driver tool, valve I 13, valve II 14 and valve III 15 only need to have respectively
There are switch two states, you can needed for the work for meeting positive and negative hydraulic driver.But the in order that behaviour of this positive and negative hydraulic driver
It is more convenient to make, and valve I 13, valve II 14 and valve III 15 also have following require：
After opening in view of valve I 13, it is used to early stage make the rear side of fluid pressure type negative pressure cylinder 20 produce negative pressure, so that outer adsorption piece 3
The outer wall of shrinkage cable sealing cap is firmly adsorbed, after negative pressure eliminates in later stage fluid pressure type negative pressure cylinder 20, valve I 13 still needs to keep it turned on
State, so that the hydraulic oil in fluid pressure type negative pressure cylinder 20 is back in fuel tank 17, after shrinkage cable sealing cap installs
Valve I 13 can be closed；Because the opening time of valve I 13 is grown, and need to carry out other operations during opening and closing, therefore valve I 13 is adopted
With manual switch valve, i.e., valve I 13, which has, opens, closes two states, and the switching of two states need to rely on external force operation；
In view of the unlatching of valve II 14, it is therefore intended that the output end of adjustable pressure-limiting valve 9 is connected with fuel tank 17, treat interior expansion
Hydraulic oil can close after being back to fuel tank 17 in support member 2；Because the opening time of valve II 14 is short, and nothing during open and close
Other operations, therefore valve II 14 be normally closed switch valve, i.e., valve II 14 need external force maintain opening, external force disappear after valve II 14 oneself
It is dynamic to be reset to closed mode；Thus one simplifies the switching manipulation of valve II 14；
In view of the unlatching of valve III 15, it is therefore intended that the piston cavity rear end and air inlet 12 for making fluid pressure type negative pressure cylinder 20 connect
It is logical, it can be closed after the negative pressure in outer adsorption piece 3 eliminates；Because the opening time of valve III 15 is short, and during open and close
Without other operations, therefore valve III 15 is normally closed switch valve, i.e., valve III 15 needs external force to maintain opening, valve III 15 after external force disappearance
Automatically reset to closed mode；Thus one simplifies the switching manipulation of valve III 15.
Referring to shown in Fig. 2,3, in the aforementioned embodiment, valve I 13, valve II 14 can be expired with valve III 15 using conventional switch valve
Sufficient shrinkage cable sealing cap installation tool is to a work requirements for positive and negative hydraulic driver, and valve I 13 uses manual switch valve, valve II
After 14 use normally closed switch valve with valve III 15, valve I 13, the operating process of valve II 14 and valve III 15 even more enormously simplify；But it
In preceding description, valve I 13, valve II 14 and valve III 15 are to employ three independent valve gears, and structure is not succinct enough, is unfavorable for reducing
The overall volume and cost of this positive and negative hydraulic driver, and valve I 13, valve II 14 are destroyed with valve III 15 if any a sealing
All directly affect the work of whole positive and negative hydraulic driver, it is clear that improve the fault rate of this positive and negative hydraulic driver；In addition, valve
I 13, valve II 14 is required for individually being operated with valve III 15, and unlatching, the order of closing have specific requirement, operate not enough
It is easy, it is easy to cause shrinkage cable sealing cap correctly to install because operation order is slipped up.Therefore, the present invention is also to valve I
13rd, valve II 14 has following improve with valve III 15：
Referring to shown in Fig. 8-13, valve I 13, valve II 14 are designed with valve III 15 using integrated form, i.e. valve I 13, valve II 14 and valve
III 15 share a set of valve pocket 41 and valve element 40 and are integrated into a fourth gear valve, and valve pocket 41 is fixed in body 4 through bearing 39, valve element 40
In the valve pocket of valve pocket 41, valve pocket 41 and 40 axially opposing fixation of valve element, but can relatively rotate, the front end of valve element 40 is provided with and it
Coaxial valve rod 49, valve rod 49 are connected with the operating mechanism outside body 4；The both sides of valve pocket 41 are respectively provided with three vertically
The joint communicated with valve pocket of distribution, six joints are with the substantially symmetrical about its central axis of valve pocket 41；Every two relative joints are one group, by preceding
It is followed successively by backward：
I group of joint 47, is connected between the plunger shaft front end of fluid pressure type negative pressure cylinder 20 and fuel tank 17；
II group of joint 45, is connected between the output end of adjustable pressure-limiting valve 9 and fuel tank 17；
III group of joint 43, is connected between the piston cavity rear end of fluid pressure type negative pressure cylinder 20 and air inlet 12；
Valve element 40 be provided with from the front to the back vertically respectively with a pair of I group of joint, 47, II groups of joints 45 and III group of joint 43 1
Valve opening I 46, valve opening II 44 and the valve opening III 42 answered；Valve element 40 is provided with four stations according to the difference of conducting situation, valve element 40
45 degree of switchings, one station is often rotated, is followed successively by：
O shelves, I group of joint, 47, II groups of joints 45 and III group of joint 43 are in cut-off state, and I group of joint 47 is only in O shelves
When be in cut-off state, it is shown in Figure 9；
I grade, I group of joint 47 connects through valve opening I 46, and II group of joint 45 and III group of joint 43 are in cut-off state, referring to figure
Shown in 10；
II grade, I group of joint 47 is connected through valve opening I 46, and II group of joint 45 connects through valve opening II 44, and III group of joint 43, which is in, to be cut
Only state, it is shown in Figure 11；
III grade, I group of joint 47 connects through valve opening I 46, and II group of joint 45 is in cut-off state, and III group of joint 43 is through valve opening III
42 connections, it is shown in Figure 12；
Valve element 40 often rotates 180 degree, and O shelves after initial station is returned to after a circulation, that is, are reset to O shelves to III grade.
Referring to shown in Fig. 8, in above-mentioned fourth gear valve arrangement, because six joints are symmetrically distributed in the both sides of valve pocket 41,
Therefore after valve element 40 rotates 180 degree, the conducting state of valve element 40 is equal with initial station, can be considered and is reset to initial station,
I.e. valve element 40 rotates a circle, and can undergo-II grade of O shelves-I grade-III grade of-O shelves of-II grade of-III grade of-O shelves-I grade successively.
Referring to shown in Fig. 3,7,13, in this positive and negative hydraulic driver work, fourth gear valve switches to III grade successively by O shelves,
After being reset to O shelves again, it can play with valve I 13, valve II 14 and valve III 15 by the individually operated function being equal of particular order, i.e.,：
1) when this positive and negative hydraulic driver is started working, fourth gear valve is first in O shelves, is equal to valve I 13, valve II 14 and valve
III 15 are completely in cut-off state, and the output hydraulic pressure oil of piston pump 16 flows first to fluid pressure type negative pressure cylinder 20, treats high pressure thrust spring
22 are increasingly compressed to energy accumulating state, and fluid pressure type negative pressure cylinder 20 is that piston pump 16 exports after later stage generation negative pressure is ready work
Hydraulic oil flow into expanded support part 2, make rubber sleeve to shrinkage cable sealing cap implement expanded support；
2) when shrinkage cable sealing cap is tightly contacted by expanded support to its outer wall with the absorbing cylinder inwall of outer adsorption piece 3, stop
Pushes pedals 8, fourth gear valve being adjusted to I grade, be equal to valve I 13 and be in opening, valve II 14 is in cut-off state with valve III 15,
Now rubber sleeve still remains inflated for, and the plunger shaft front end of fluid pressure type negative pressure cylinder 20 connects with fuel tank 17, before rodless piston 21
The hydraulic fluid pressure of side eliminates, and the rear side of rodless piston 21 produces negative pressure, and outer adsorption piece 3 firmly inhales the outer wall of shrinkage cable sealing cap
It is attached；
3) fourth gear valve being adjusted to II grade, is equal to valve I 13, valve II 14 is in opening, valve III 15 is in cut-off state,
Now the output end of adjustable pressure-limiting valve 9 connects with fuel tank 17, and rubber sleeve depends on natural resiliency to shrink, the hydraulic oil of interior expanded support part 2
It is back in fuel tank 17, and then rubber sleeve can be extracted out from shrinkage cable sealing cap, because the outer wall of shrinkage cable sealing cap is still firm
Jail is adsorbed by outer adsorption piece 3 and continues to keep expanded support state, and cable end piece is inserted in shrinkage cable sealing cap；
4) fourth gear valve is adjusted to III grade, is equal to valve I 13 and is in opening, valve II 14 is in cut-off state, valve III 15
In opening, now the piston cavity rear end of fluid pressure type negative pressure cylinder 20 connects with air inlet 12, and the negative pressure in outer adsorption piece 3 disappears
Removing, shrinkage cable sealing cap depends on natural resiliency to shrink, and is tightly fixed in cable end piece, that is, completes the installation of shrinkage cable sealing cap,
After the hydraulic oil in the plunger shaft of fluid pressure type negative pressure cylinder 20 is back in fuel tank 17, fourth gear valve is adjusted to O shelves, in case next time makes
With；
Because I group of joint 47 is only in cut-off state in O shelves, therefore other stations and each station outside O shelves are cut
During changing, I group of joint 47 is equal to after valve I 13 is opened to being always maintained at opening during installation all in connected state
State.
In brief, during positive and negative hydraulic driver work, original state is O shelves, then switches to I successively according to operation
Shelves, II grade, III grade can complete to operate, be finally reset to O shelves, in case next time use, operation it is very convenient；Due to fourth gear valve only
The valve pocket 41 and valve element 40 coordinated with a set of sealing, tightness is easily guaranteed that, reduces the fault rate of positive and negative hydraulic driver,
Simultaneously because fourth gear valve is an independent valve gear, structure is relatively small, is beneficial for ensuring that positive/negative-pressure driving device structure more
It is compact.
In above-mentioned fourth gear valve, valve element 40 is located in the valve pocket of valve pocket 41, valve pocket 41 and 40 axially opposing fixation of valve element,
But it can relatively rotate, the technical purpose is easily achieved, and can use following structure：
Referring to shown in Fig. 8, the valve pocket one end open of valve pocket 41, and the other end has bottom, the tail end of valve element 40 and valve pocket bottom
Portion supports, and valve pocket 41 is provided with the bonnet 48 for being used for preventing that valve element 40 from moving axially, and bonnet 48 is provided with via, and valve rod 49 passes through
Via on bonnet 48 and be connected with operating mechanism；Thus, valve element 40 is limited and can not axle by the bottom of valve pocket and bonnet 48
To movement, but can be rotated in valve pocket.
Referring to shown in Figure 14,15, in above-mentioned fourth gear valve, operating mechanism is used to artificially be operated, and then realizes logical
Valve rod 49 is crossed to drive valve element 40 to rotate, plays the purpose of regulation stall；Therefore operating mechanism can be knob 50, body 4 is provided with
The gear mark 51 coordinated with knob 50, it can confirm that fourth gear valve is in a certain gear by knob 50 and gear mark 51.
Foot-operated operation should be preferentially used in view of this positive and negative hydraulic driver, such as fourth gear valve using knob 50 as operation
Mechanism, it need to typically be operated with hand, using still not convenient enough, therefore in the present invention, operating mechanism can use following design：
Referring to shown in Figure 16,17,19,21, operating mechanism is foot-operated gearshift, i.e., it includes a change pedal
55, the tail end of change pedal 55 is provided with the pedal shaft 54 for being secured to connection, pedal shaft 54 fix through the axle bed 62 on body 4 and
With the keeping parallelism of valve rod 49 of the front end of valve element 40；One is installed in inner angular region between change pedal 55 and body 4 to be used to drive
Change pedal 55 is set to be reset to the V-arrangement fillet shell fragment 6 of lifting status；One end of pedal shaft 54 extends to body through axle bed 62
The ratchet 53 coaxial with pedal shaft 54 is installed on inside 4 and in tail end, when change pedal 55 depresses, pedal shaft 54 drives list
To the synchronous axial system of gear 53, when change pedal 55 resets, ratchet 53 does not rotate；The front end of valve rod 49 is provided with a driven gear
52, the driven gear 52 engages with ratchet 53；It is provided between change pedal 55 and body 4 and limits the rotation row of change pedal 55
The angle limit mechanism of journey, makes change pedal 55 often depress once, and driven gear 52 rotates 45 degree, and valve element 40 switches a work
Position.
Referring to shown in Figure 19, thus one, during this positive and negative hydraulic driver work, action edge can be entered by pedal 8 and inputted,
Output and the removal of positive/negative-pressure are can control by change pedal 55, therefore this positive and negative hydraulic driver can be completely dependent on the pin of operator
Portion is operated, and solution has released both hands, and the installation of shrinkage cable sealing cap is carried out for hand-held interior expanded support part and outer adsorption piece
Operation, uses both hands and feet, improves installation effectiveness.
In above-mentioned foot-operated gearshift, one end of pedal shaft 54 is provided with ratchet 53, when change pedal 55 depresses
Pedal shaft 54 drives the synchronous axial system of ratchet 53, and ratchet 53 does not rotate when change pedal 55 resets, and this has the technical effect that
It is relatively easy to realize, for example the structure with bicycle ratchet similarly can be used, i.e.,：
A nebenkern 58 is fixed with referring to one end that shown in Figure 18, pedal shaft 54 is extended in body 4, ratchet 53 is in
Annular and be nested with nebenkern 58, both are coaxial, and the inner hole wall of ratchet 53 is provided with the teeth groove 57 that a circle depression is formed,
Ratchet 60 is provided with teeth groove 57, some ratchets 61 are installed on the perisporium of nebenkern 58 and drive ratchet 61 to recline the bullet of ratchet 60
Piece 59；When stepping on change pedal 55, ratchet 61 supports cooperation with ratchet 60 and makes ratchet 53 with the synchronous axial system of nebenkern 58；
When the reset of change pedal 55 is lifted, ratchet 61 is slidably matched with ratchet 60, and ratchet 53 is under drag effect without with concentric
Wheel 58 and pedal shaft 54 rotate；Simultaneously as ratchet 61 coordinates with teeth groove 57 so that nebenkern 58 axially obtains with ratchet 53
To be relatively fixed.
Above-mentioned in this foot-operated gearshift, the effect of angle limit mechanism is the rotation for limiting change pedal 55
Angle, i.e. rotating distance, to ensure that change pedal 55 often depresses once, driven gear 52 rotates 45 degree, and valve element 40 switches one
Station, based on this purpose, angle limit mechanism can use following structure：
Referring to shown in Figure 18,19, angle limit mechanism is by a spacing top for limiting change pedal 55 and lifting maximum angle
The caging bolt 63 that block 56 pushes minimum angles with a restriction change pedal 55 is formed；Spacing jacking block 56 is arranged on change pedal
55 tail end, after spacing jacking block 56 is supported with the top of body 4, change pedal 55 can not continue lifting；Caging bolt 63 is located at
The downside of change pedal 55, a screw screw thread at the top of caging bolt 63 and body 4 coordinate, when change pedal 55 press to
It can not continue to rotate down when caging bolt 63 is supported；By rotary stopper bolt 63, the position on its top can adjust, you can
The rotating distance of change pedal 55 is regulated and controled, to ensure that change pedal 55 is trampled once, the rotation of driven gear 52 45
Degree, valve element 40 switch a station.
Referring to shown in Figure 16,19, above-mentioned in this foot-operated gearshift, change pedal 55 often depresses once, passively
Gear 52 rotates 45 degree, and valve element 40 switches a station, and the technical purpose is relatively easy to realize, on the one hand by passive
Gear 52, the gear ratio of ratchet 53 carry out pre-control, on the other hand by regulating and controlling to the rotating distance of change pedal 55,
Thus can realize easily.
When operating mechanism uses foot-operated gearshift, because valve rod 49, ratchet 53, driven gear 52 are respectively positioned on
In body 4, it is not easy to determine the gear residing for fourth gear valve, therefore fourth gear valve also has following improve：
It is coaxial therewith referring to shown in Figure 20,21, i.e., being fixed with one on valve rod 49 and with the instruction disk 64 of its synchronous rotary, refers to
Show that gear corresponding with the station of valve element 40 is labeled with the perisporium of disk 64 identifies 51 (O, I, II, III), and the exterior portion of body 4 is provided with one
Form 65, when valve element 40 often switches to a station, corresponding gear mark 51 is located exactly at form 65 and can recognized；Thus
One, pass through the gear mark 51 shown at observation window 65, you can determine which gear fourth gear valve is in so that operation is more
It is accurate convenient.
Claims (9)
1. a kind of positive and negative hydraulic driver of shrinkage cable sealing cap installation tool, it is characterised in that it includes：
Body, body is installed on outside can automatically reset pedal；
Hydraulic pump module, it is formed by piston pump and with the fuel tank that piston pump input connects, and the piston rod of piston pump extends to
Body is outer and by pedal-driven, and pedal depresses and in reseting procedure, piston pump is correspondingly completed oil extraction and acted with oil suction, the oil of fuel tank
Case mouth is blocked by the fuel tank cap with switch air admission hole；
Negative pressure output precision, it includes a fluid pressure type negative pressure cylinder, the plunger shaft inside fluid pressure type negative pressure cylinder with column, piston
Intracavitary is provided with a rodless piston, and the rear side of rodless piston is provided with high pressure thrust spring；The front end of plunger shaft is except defeated with piston pump
It is connected outer to go out end, is also connected through valve I with fuel tank；The rear end of plunger shaft with negative pressure out splice going splice in addition to being connected, also through valve III and one
Air inlet is connected；On front side of rodless piston after input hydraulic pressure oil, high pressure thrust spring passive is compressed and progressivelyes reach energy accumulating state；Valve
After I opens, oil pressure on front side of rodless piston is eliminated, and high pressure thrust spring is provided after forward thrust makes rodless piston for rodless piston
Side produces negative pressure；After valve III is opened, the negative pressure on rear side of rodless piston eliminates；
Adjustable pressure-limiting valve, its input are connected with the output end of piston pump, and its output end is removed and a hydraulic oil out splice going splice phase
It is even outer, also it is connected through valve II with fuel tank；Adjustable pressure-limiting valve is after default engaging pressure threshold value, it is ensured that the liquid of piston pump output
Force feed preferentially flows to fluid pressure type negative pressure cylinder, and driving high pressure thrust spring-compressed, the hydraulic oil then exported passes through again to energy accumulating state
Adjustable pressure-limiting valve flows to hydraulic oil out splice going splice；After valve II is opened, the oil pressure of the output end of adjustable pressure-limiting valve eliminates；
Piston pump, fuel tank, fluid pressure type negative pressure cylinder and adjustable pressure-limiting valve are placed in internal body；And valve I, valve II, valve III with
Operating element and reservoir port, air inlet, negative pressure out splice going splice, the hydraulic oil out splice going splice of adjustable pressure-limiting valve are both exposed to machine
In vitro.
A kind of 2. positive and negative hydraulic driver of shrinkage cable sealing cap installation tool according to claim 1, it is characterised in that：
The tail end through connecting rod mechanism of pedal is fixed on the upside of body, and a free bearing, the free bearing and piston pump are then provided with the downside of pedal middle front part
Piston rod upper end be hinged；A V-arrangement fillet shell fragment is installed in inner angular region between pedal and body, V-arrangement fillet shell fragment
Both ends are connected with pedal, body respectively, and V-arrangement fillet shell fragment is used to drive pedal to be reset to lifting status.
A kind of 3. positive and negative hydraulic driver of shrinkage cable sealing cap installation tool according to claim 1, it is characterised in that：
Valve I is manual switch valve, i.e., it, which has, opens, closes two states, and the switching of two states need to rely on external force operation；Valve II,
Valve III is normally closed switch valve, i.e., valve II, valve III need outer power to maintain opening, and valve II and valve III can be automatic after external force disappearance
It is reset to closed mode.
A kind of 4. positive and negative hydraulic driver of shrinkage cable sealing cap installation tool according to claim 1, it is characterised in that：
Valve I, valve II and valve III share a set of valve pocket and valve element and are integrated into a fourth gear valve, and valve pocket is fixed in body through bearing, valve element
In the valve pocket of valve pocket, valve pocket is axially relatively fixed with valve element, but can be relatively rotated, and valve element front end is provided with the valve being coaxial therewith
Bar, valve rod are connected with exposed to extra-organismal operating mechanism；The both sides of valve pocket be respectively provided with three it is axially distributed with valve pocket phase
Logical joint, six joints are with the substantially symmetrical about its central axis of valve pocket；Every two relative joints are one group, are followed successively by from the front to the back：
I group of joint, is connected between the plunger shaft front end of fluid pressure type negative pressure cylinder and fuel tank；
II group of joint, is connected between adjustable pressure-limiting valve output end and fuel tank；
III group of joint, is connected between the piston cavity rear end of fluid pressure type negative pressure cylinder and air inlet；
Valve element is provided with valve opening I, valve opening II and valve opening III from the front to the back vertically；Valve element is according to the difference of conducting situation and provided with four
Individual station, valve element often rotate 45 degree of switchings, one station, are followed successively by：
O shelves, I group of joint, II group of joint and III group of joint are in cut-off state, and I group of joint is in cut-off shape only in O shelves
State；
I grade, I group of joint connects through valve opening I, and II group of joint and III group of joint are in cut-off state；
II grade, I group of joint connects through valve opening I, and II group of joint connects through valve opening II, and III group of joint is in cut-off state；
III grade, I group of joint connects through valve opening I, and II group of joint is in cut-off state, and III group of joint connects through valve opening III；
Valve element often rotates 180 degree, and initial station is returned to after O shelves to III grade of experience, one circulation.
A kind of 5. positive and negative hydraulic driver of shrinkage cable sealing cap installation tool according to claim 4, it is characterised in that：
Operating mechanism is knob, and body is provided with to be identified with the gear of knobs fit.
A kind of 6. positive and negative hydraulic driver of shrinkage cable sealing cap installation tool according to claim 4, it is characterised in that：
Operating mechanism is foot-operated gearshift, and it includes a change pedal, and the tail end of change pedal, which is provided with, is secured to connection
Pedal shaft, pedal shaft fixed through the axle bed on body and with the valve rod keeping parallelism of valve element front end；Between change pedal and body
Inner angular region in be installed on one be used for drive change pedal to be reset to lifting status V-arrangement fillet shell fragment；One end of pedal shaft
Internal body is extended to through axle bed and the ratchet coaxial with pedal shaft is installed in tail end, is stepped on when change pedal depresses
Board shaft drives ratchet synchronous axial system, and ratchet does not rotate when change pedal resets；The front end of valve rod is provided with a passive tooth
Wheel, the driven gear engage with ratchet；The angle for limiting change pedal rotating distance is provided between change pedal and body
Position-limit mechanism, change pedal is set often to depress once, driven gear rotates 45 degree, and valve element switches a station.
A kind of 7. positive and negative hydraulic driver of shrinkage cable sealing cap installation tool according to claim 6, it is characterised in that：
One end that pedal shaft is extended in body is fixed with a nebenkern, and ratchet is nested with nebenkern in a ring, Liang Zhetong
Axle, the inner hole wall of ratchet are provided with the teeth groove that a circle depression is formed, are provided with ratchet in teeth groove, are installed on the perisporium of nebenkern
There are some ratchets and drive ratchet to recline the shell fragment of ratchet；When stepping on change pedal, ratchet supports cooperation with ratchet and made unidirectional
Gear is with nebenkern synchronous axial system；When change pedal reset is lifted, ratchet coordinates with Ratchet slide, and ratchet is in drag effect
Under without with nebenkern and pedal shaft rotation；Simultaneously as ratchet and tooth socket fit so that nebenkern axially obtains with ratchet
To be relatively fixed.
A kind of 8. positive and negative hydraulic driver of shrinkage cable sealing cap installation tool according to claim 6, it is characterised in that：
Angle limit mechanism by one limit change pedal lift maximum angle spacing jacking block and one limit change pedal push most
The caging bolt of low-angle is formed；Spacing jacking block is arranged on the tail end of change pedal, and after it at the top of body with supporting, gearshift is stepped on
Plate can not continue lifting；Caging bolt is located at the downside of change pedal, and itself and a screw screw thread at the top of body coordinate, when changing
Gear pedal depression can not continue to rotate down to when supporting with caging bolt.
A kind of 9. positive and negative hydraulic driver of shrinkage cable sealing cap installation tool according to claim 6, it is characterised in that：
An instruction disk being coaxial therewith is fixed with valve rod, indicates that the perisporium of disk is labeled with gear mark corresponding with valve element station, and
Body exterior portion is provided with a form, and when valve element often switches to a station, corresponding gear mark is located exactly at form and distinguishable
Know.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610634285.3A CN106015148B (en) | 2016-08-04 | 2016-08-04 | The positive and negative hydraulic driver of shrinkage cable sealing cap installation tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610634285.3A CN106015148B (en) | 2016-08-04 | 2016-08-04 | The positive and negative hydraulic driver of shrinkage cable sealing cap installation tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106015148A CN106015148A (en) | 2016-10-12 |
| CN106015148B true CN106015148B (en) | 2017-12-08 |
Family
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| CN107946829A (en) * | 2017-12-08 | 2018-04-20 | 成都滕达科技有限公司 | It is a kind of can before wiring protective device |
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| CN116984155B (en) * | 2023-09-26 | 2024-05-07 | 河南纾宸环保科技有限公司 | Coating mixer of spraying machine |
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| JP2005039952A (en) * | 2003-07-17 | 2005-02-10 | Furukawa Electric Co Ltd:The | Insulation oil exchanging method and insulation oil exchanging device for oil filled cable connecting portion |
| CN201191754Y (en) * | 2008-04-29 | 2009-02-04 | 江苏安靠超高压电缆附件有限公司 | Joint elastomer expanding apparatus for intermediate connecting joint of electric cable |
| CN101814708B (en) * | 2009-02-19 | 2012-08-29 | 泉州七星电气有限公司 | Method for pre-expanding cold-shrinking cable accessory |
| JP2010233422A (en) * | 2009-03-30 | 2010-10-14 | Furukawa Electric Co Ltd:The | Method of manufacturing cold shrink tube |
| CN201456394U (en) * | 2009-08-28 | 2010-05-12 | 保定合力达电缆附件有限公司 | Expansion machine of middle joint of cable |
| JP5743278B2 (en) * | 2011-09-28 | 2015-07-01 | 株式会社ビスキャス | Diameter expansion method for cold shrink tube |
| CN202308928U (en) * | 2011-10-08 | 2012-07-04 | 江苏大全长江电器股份有限公司 | Auxiliary installation tool of inner cone plug-type terminal cable |
| CN103419169A (en) * | 2012-05-16 | 2013-12-04 | 冯建根 | Expanding machine for accessories of cold-shrinkage cables and method for applying expanding machine |
| CN104201622B (en) * | 2014-09-11 | 2017-09-01 | 江苏安靠智能输电工程科技股份有限公司 | A kind of prefabricated class intermediate joint of electric cable erecting device and method |
| CN205291552U (en) * | 2015-12-28 | 2016-06-08 | 浠水深博电气有限公司 | No trace shrinkage steel wire expander |
| CN105715875B (en) * | 2016-04-27 | 2018-01-02 | 上海怡博船务有限公司 | A kind of drawing-in type rubber sleeve assembling device |
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