CN1709760A - Electric/manual lifting device for driver's cab turnover - Google Patents
Electric/manual lifting device for driver's cab turnover Download PDFInfo
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- CN1709760A CN1709760A CN 200510016856 CN200510016856A CN1709760A CN 1709760 A CN1709760 A CN 1709760A CN 200510016856 CN200510016856 CN 200510016856 CN 200510016856 A CN200510016856 A CN 200510016856A CN 1709760 A CN1709760 A CN 1709760A
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Abstract
The electric or hand lifting equipment for turning over the cab. It consists of the electric machinery, the dynamoelectric hydraulic pressure pump, the hand hydraulic pressure pump, the controlling oilway, the controlling system, the unilateralism pump, the flooding valve, the throttle valve, the lifting oil-urn, the lifting piston, the random moving system and airproofing as a noumenon. All the parts of the noumenon connect with each other by the oilway of the inner of the noumenon. The lifting oil-urn, the lifting piston, the random moving system and flying ring integrate a body. The ear seat integrates the noumenon. There is the random moving piston in the piston connecting rod clevel which sets in the lifting oil-urn. The lumen in the piston connecting rod is the random moving oil-urn. The invention integrates the oil box, the lifting urn, the piston and the random moving system. It has the outer connecting pipe and the outer tie-in so that it avoids leaking the oil.
Description
Technical field:
The invention belongs to automobile technical field, be specifically related to a kind of driver's cab turnover lifting device, international Patent classificating number is: B62D33/067.
Background technology:
Existing cab tilting device mainly contains following three kinds of forms at present, and a kind of is the torque spring formula, torque spring is installed on the fulcrum before operator's compartment, and is given pre-torsion, is used to lower the gravity of operator's compartment; Second kind is to adopt screw-rod structure; The third adopts the manual or electronic mode of hydraulic gear; Above-mentioned three kinds of modes all have different defectives.The labour intensity of the upset chaufeur of first and second kind operator's compartment is very big and dangerous; The third has split type driver's cab turnover device to come out, and the oil pump of this tumbler and hydraulic ram are that two body branches are put, and middle by the oil pipe connection, oil pipe in use easily is worn and causes system's leakage of oil, makes the tumbler operational failure; Secondly pipe seal is not good causes leakage of oil; Assembly process process is poor.
Summary of the invention:
Goal of the invention of the present invention provides safe and reliable, compact conformation, electric/manual lifting device for driver's cab turnover easy to use.
Technical solution of the present invention is that motor, electric hydraulic pump, hydraulic hand-pump, control oil channel, control mechanism, check valve, by pass valve, flow regulating valve, elevating ram, lifting piston, follow mechanism etc. all are integrated on the body; Parts such as elevating ram, lifting piston, follow-up system, suspension ring become one; Ear seat and body are integrated in one.
The present invention is made up of lifting device body, motor-drive pump oil cylinder, and the left side on body is equipped with electrical motor, and the right side on body is equipped with oil cylinder;
In order to guarantee still not influence the upset of operator's compartment when electric hydraulic pump or circuit break down, the right side of oil cylinder is equipped with hydraulic hand-pump on above-mentioned lifting device body;
The reversing control valve of plunger pump, by pass valve, steering unit is installed from left to right successively in the front of described lifting device body;
Back at described lifting device body is installed two check valves, flow regulating valve, reversing control valve and plunger pumps from left to right successively;
Two check valves successively from left to right in the left side of described lifting device body;
Bottom surface and central oil duct left and right symmetrically at described lifting device body are equipped with two check valves;
Have 14 of the oil ducts of link in described lifting device body interior;
Suspension ring and piston rod link by straight pin, in by the steel wire snap ring oscillating bearing being fixed in the suspension ring.
Described oil cylinder is made up of oil cylinder overcoat, oil cylinder, piston rod, piston and piston follower, oil cylinder is connected with body by screw thread, and oil return pipe is inserted on the right side body of oil cylinder, and overcoat is installed in the outside of oil cylinder and oil return pipe, overcoat and body free-running fit are by zero shape ring radial seal; Clamp nut by oil cylinder top screw thread oil cylinder is fastened on the body together with overcoat; The top of oil return pipe is inserted in the spacer shell that is installed to overcoat top, has oilhole at oil cylinder and spacer shell annular groove junction; Inside at oil cylinder is equipped with piston rod;
Described piston rod is the cylinder bodily form; Bottom at piston rod is connected with piston by seam and bearing pin; Piston has three road annular grooves, and first and three roads are oil sealing, and second road is a support ring;
Oil cylinder of the present invention can adopt conventional hydraulic actuating cylinder, and piston rod promptly is installed in oil cylinder, and piston head is equipped with suspension ring, underpart of the piston rod is equipped with piston, oil return pipe is installed in the oil cylinder outside, fuel tank is placed on the body after adopting this oil cylinder, also can finish purpose of the present invention;
In order to realize some vehicle cab suspension Fu needs, improve the working environment of operator's compartment, install follow-up mechanism additional in piston rod inside, concrete structure is as follows:
Aforesaid piston rod is processed into hollow form and forms slave cylinder, in the piston rod inside of hollow form piston follower is installed; Bottom at piston rod is connected with piston by seam and bearing pin; Piston follower has four road annular grooves, and going up together most is compression ring, and second and four roads are support ring, and the 3rd road is an oil sealing; Piston has three road annular grooves, and first and three roads are oil sealing, and second road is a support ring; The oil duct that has two symmetries in the middle of piston leads to piston follower; The suspension ring that adapt therewith are provided with deflation hole;
Reversing control valve adopts 3-position 4-way rotary valve or two-position four-way rotary valve; Also can adopt straight valve of 3-position 4-way or the straight valve of two-position four-way;
Described rotary valve is the 3-position 4-way hand change over valve, is installed in the bottom of oil cylinder cavity, and the spool left end is stifled and finish axial location by O type ring seal by plug, and the spool right-hand member mills the gap position by holddown spring and self plat mill part branch with joystick and is connected; The dividing device that joystick is made up of upper right side pressure pearl and spring Top silk carries out per 45 degree calibration; The joystick right-hand member has gland and dust-proof seal ring, and pressured lid seam inside groove is spacing, and the relevant position is equipped with locking pin on the joystick;
Described electric hydraulic pump: form by parts such as eccentric shaft, motor, O shape circle, bearing, revolution oil sealing, gland, sliding spools; Sliding spool parts level is installed in forward and backward position, body left side, its end eccentric shaft parts middle with being installed in two sliding spool parts contact, oil sucting one-way valve is installed in the body bottom surface, press oily check valve to be installed in the body left side, include the revolution oil sealing, have the gland that the eccentric shaft upper bearing uses that compresses of zero shape circle to be contained on the body of motor lower end outward; The eccentric shaft upper end links to each other with motor output shaft; Motor is connected with body with screw and spring shim by packing seal;
Described manual pump support is connected on the body by bottom screw and rubber cushion and top manual pump oil cylinder and damping rubber cushion; The manual pump oil cylinder is installed on the body by screw thread, and its lower end compresses a pad; The manual pump piston-rod lower end is by the Y-shaped ring oil sealing, and the upper end is connected on the gland by hinge axis and pin, and gland is connected with pipe link with pin by hinge axis, and pipe link is connected with support with pin by hinge axis;
Hydraulic control one-way valve is installed in right back of body with the version of plugging in valve, and it is connected outlet with rotary valve output oil duct and communicates with the oil cylinder bottom by one-way throttle valve.The control mouth connects the oil cylinder back oil road;
One-way throttle valve is arranged between hydraulic control one-way valve and the rotary valve, and it is installed in back, body right side with the form of plugging in valve, and it directly is connected with hydraulic control one-way valve with the oil cylinder bottom;
Check valve is installed in the back of body low order end with the form of plugging in valve, and it is connected with the manual pump high-pressure oil duct, and mouth and motor-drive pump are connected in parallel;
Described check valve, by pass valve, one-way throttle valve and hydraulic control one-way valve are the Valve-plugging production-release design;
The body lower end is provided with casting ear seat; In by the steel wire snap ring oscillating bearing being fixed in the ear seat;
Principle of work of the present invention:
Can adopt dual mode during lifting mechanism work: manually with electronic, both are connected in parallel.Drive the work of Hydraulic Pump assembly behind motor start-up, the high pressure oil of generation makes system in running order by by pass valve and rotary valve simultaneously:
Lifting: send into the promotion piston motion of oil cylinder bottom by the high pressure oil that rotary valve transmits through hydraulic control one-way valve and one-way throttle valve, epicoele oil is got back to fuel tank through oil return pipe and is finished lifting;
Stop: when Hydraulic Pump and manual pump stop to carry high pressure oil, make operator's compartment be parked in desired location because the high pressure oil that the oil cylinder bottom flows to the loop is closed in the effect of hydraulic control one-way valve rapidly.Guarantee that the operator's compartment by gravity does not fall;
Fall after rise: the high pressure oil that Hydraulic Pump is produced by the rotary valve commutation oppositely enters oil road, like this, high pressure oil is told one and is opened hydraulic control one-way valve, another enters the oil cylinder epicoele from oil return pipe, act on piston, piston is descended, and the oil of oil cylinder cavity of resorption oil sump tank after throttling has been avoided causing the operator's compartment falling too fast because of gravity;
Servo-actuated: rotary valve places midway location. and piston floats, and hydraulic oil moves in servo cylinder and master cylinder, realizes servo-actuated, closes the oil circuit of all hydraulic valve during servo-actuated.
The present invention is integrated in Hydraulic Pump, manual pump, operating control mechanism, safety gear, following coupling link height on the body, fuel tank, lifting cylinder and piston, follow-up system are integrated in one, no external connecting pipe road and expose joint, avoided the leakage of oil problem, have reliable operation, reduce fault rate, and cost-cutting, assembly process process is good, changes good effect easily.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is vertical profile structure of the present invention (embodiment a 2) scheme drawing;
Fig. 3 is a birds-eye view of the present invention;
Fig. 4 is the structural representation of reversing control valve section of the present invention;
Fig. 5 is a hydraulic control one-way valve cross-sectional view of the present invention;
Fig. 6 is a plunger hydraulic pump cross-sectional view of the present invention;
Fig. 7 is a manual pump cross-sectional view of the present invention;
Fig. 8 on the body of the present invention, a left side, duct, front position view;
Fig. 9 under the body of the present invention, duct, back position view;
Figure 10 is duct, a body of the present invention right side position view;
Figure 11 is oil cylinder place duct position view above the body of the present invention;
Figure 12 is the structural representation of the present invention (embodiment 1) section;
Figure 13 is a hydraulic schematic diagram of the present invention.
The specific embodiment:
Embodiment 1:
As shown in figure 12 of the present invention:
The present invention is made up of lifting device body 17, electric hydraulic pump 16, hydraulic hand-pump 8 and oil cylinder 2, middle part on body 17 is equipped with oil cylinder, the left side of oil cylinder is equipped with electrical motor 16 on body 17, and the right side of oil cylinder is equipped with manual pump 8 on body;
The reversing control valve 10 of plunger pump, by pass valve, steering unit is installed from left to right successively in the front of described lifting device body 17;
Back at described lifting device body 17 is installed the oily check valve of pressure, hydraulic control one-way valve, one-way throttle valve, reversing control valve 10 and plunger pump from left to right successively;
In the left side of described lifting device body 17 from left to right successively two press oily check valves;
Bottom surface and central oil duct left and right symmetrically at described lifting device body 17 are equipped with two oil sucting one-way valves, also claim the deadweight check valve;
Have 14 of the oil ducts of link in described lifting device body 17 inside;
Described oil cylinder is made up of oil cylinder overcoat 2, oil cylinder 4, piston rod 5 and piston 7, oil cylinder is connected with body by screw thread, and oil return pipe 3 is inserted on the right side body 17 of oil cylinder 4, and overcoat 2 is installed in the outside of oil cylinder 4 and oil return pipe 3, overcoat 2 and body 17 free-running fits are by zero shape ring radial seal; Tightly with nut 19 by oil cylinder top screw thread oil cylinder 4 is fastened on the body 17 together with overcoat 2; The top of oil return pipe 3 is inserted in the spacer shell 18 that is installed to overcoat 2 tops, has 4 oilholes in oil cylinder 4 and spacer shell 18 annular groove junctions; In the inside of oil cylinder 4 piston rod 5 is installed;
Described piston rod 5 is the cylinder bodily form; Bottom at piston rod 5 is connected with piston 7 by seam and bearing pin; Piston 7 has three road annular grooves, and first and three roads are oil sealing, and second road is a support ring;
Described reversing control valve 10 adopts 3-position 4-way rotary valve or the straight valve of 3-position 4-way when the present invention has follow-up mechanism; When the present invention does not have follow-up mechanism, can adopt the straight valve of two-position four-way rotary valve or two-position four-way; Present embodiment adopts the 3-position 4-way rotary valve;
Described rotary valve 10 is the 3-position 4-way hand change over valve, it is operating control mechanism of the present invention, be installed in the bottom of oil cylinder cavity, the spool left end is stifled and finish axial location by O type ring seal by plug, and the spool right-hand member mills the gap position by holddown spring and self plat mill part branch with joystick and is connected; The dividing device that joystick is made up of upper right side pressure pearl and spring jackscrew carries out per 45 degree calibration; The joystick right-hand member has gland and dust-proof seal ring, and pressured lid seam inside groove is spacing, and the relevant position is equipped with locking pin on the joystick;
Position among Fig. 4 is a midway location, i.e. servo-actuated and stop place, and high-pressure oil duct b and hydraulic control one-way valve oil duct a disconnect, and fuel tank oil duct d and oil return oil duct c connect simultaneously;
Spend when clockwise direction that joystick is made progress rotates 45, high-pressure oil duct b is communicated with hydraulic control one-way valve oil duct a, and fuel tank oil duct d and oil return oil duct c connect simultaneously, is the lifting state this moment;
When the downward anticlockwise motion 45 of joystick is spent, high-pressure oil duct b is communicated with oil return oil duct c, and hydraulic control one-way valve oil duct a and fuel tank oil duct d connect simultaneously, are the falling state this moment;
Described electric hydraulic pump 16: form by eccentric shaft, motor, O shape circle, bearing, revolution oil sealing, gland, two parts such as sliding spool; Two sliding spool parts levels are installed in forward and backward position, body left side, its end eccentric shaft parts middle with being installed in two sliding spool parts contact, two oil sucting one-way valves are installed in the body bottom surface, press oily check valve to be installed in the body left side for two, include the revolution oil sealing, have the gland that the eccentric shaft upper bearing uses that compresses of zero shape circle to be contained on the body of motor lower end outward; The eccentric shaft upper end links to each other with motor output shaft; Motor is connected with body with screw and spring shim by packing seal; The motor drives eccentric shaft drives two plunger pumps, makes to replace two plunger phase differences, 180 degree oil suction, press oil; By pass valve 9 can play the overvoltage protection effect, and when system pressure surpasses safety value, by pass valve 9 is opened, and hydraulic oil overflows back fuel tank, and system obtains off-load.
Described manual pump 8 is arranged in body 17 low order ends, and support is connected on the body by bottom screw and rubber cushion and top manual pump oil cylinder and damping rubber cushion; The manual pump oil cylinder is installed on the body by screw thread, and its lower end compresses a pad; The manual pump piston-rod lower end is connected on the gland by hinge axis and pin by Y-shaped ring oil sealing upper end, and gland is connected with pipe link with pin by hinge axis, and pipe link is connected with support with pin by hinge axis.
The duct that each parts uses in the body 17 concentrates on body 17 inside with relevant oil duct and pump housing, has oil duct to communicate, and sees that with the arrangement of valve body figure marks 45 holes (seeing shown in Fig. 8-11) altogether:
016,018,032 for pressing oily check valve duct; 026,027 is the oil sucting one-way valve duct; 014 and 038 is the duct of front and back sliding spool; 009 is that steering unit duct, 036 is rotary valve duct, 009 and 036 coaxial perforation; 010 is the by pass valve duct; 033 is the hydraulic control one-way valve duct; 035 is the one-way throttle valve duct; 004 presses micropylar canal for the steering unit calibration with spring.
(1) body upper surface left-to-right is arranged in order and is motor-drive pump cavity 001, oil cylinder and fuel tank lower chamber 003, manual pump lower chamber 008, and corresponding rotary valve control position has calibration duct 004.
(2) aim at duct 014 and 038, the coaxial perforation in two holes that motor-drive pump position of center line symmetry has two sliding spools at front/rear end.
Aim at 014 and 038 in the body left side and have 016 and 018.016 and 018 passes 014 and 038 respectively only arrives aligning oil sucting one-way valve duct axis 026 and 027.
(3) duct 012 of front end face is logical with bottom face duct 026; Aft end face duct 037 is logical with bottom face duct 027; 026,012 and 014 is logical, and 027,037 and 038 is logical.They form the suction passage of two plunger pumps.
Press oily check valve duct by 024,025,015,017 parallel connection of finishing the oil outlet of pressing oily check valve for (4) two.016 and 018 inlet is logical with 014 and 038 respectively.Converge into high pressure output oil duct 017 after their parallel connections.
(5) high pressure output oil duct 017 passes 037 and only arrives 034.
(6) positive center has central oil duct 022,022 and passes rotary valve 036 arrival motor-drive pump cavity of resorption 001 under the right side.017 and 022 by rotary valve be divided into output oil duct and the commutation oil duct.
(7) have the duct line of centers that two oil sucting one-way valve ducts 026 and 027,026 and 027 hole depth skip over two sliding spools 014 and 038 in baseplane central authorities oil duct both sides.
(8) two oil sucting one-way valve ducts 026 link to each other with fuel tank duct 039 with 022 by 013 with 027, finish to make two oil sucting one-way valve inlets in parallel.。
(9) fluid valve duct 010 inlet links to each other with high-pressure oil duct 017 by 019,028.Outlet links to each other with fuel tank oil duct 039 by 002,011,022.
(10) right back end face has hydraulic control one-way valve duct 033, and bore end leads to central oil duct 022 by 006; Oil inlet leads to rotary valve duct 036 by 005,021,034; Oil outlet by 031,020,029, one-way throttle valve duct 035 is logical with oil cylinder inlet oil duct 041.
(11) having 035,035 outlet of one-way throttle valve opening at right back end face directly leads to 041.Oil cylinder bottom high pressure oil oppositely arrives the fuel tank throttling by one-way throttle valve, on the contrary not throttling.035 inlet is communicated with hydraulic control one-way valve 033 outlet by 031,029,020.
(12) have at the most right back face of body and press oily check valve duct 032,032 inlet manual pump cavity to press oil duct 045 to be communicated with, outlet is communicated with high-pressure oil duct 017 by 007,019,028, finishes the in parallel of manual pump and two motor-drive pumpes.
(13) in the manual pump cavity, have dead-weight check valve duct 044 with pressing the oil duct certain distance; 044 is communicated with composition oil suction road by 023 with fuel tank passage 042.
(14) form back oil road by fuel return hole 043 and 022 right part duct.
Hydraulic control one-way valve 13 has two effects: when lifting, can avoid piston to fall after rise.Because in a single day piston has the trend of falling, hydraulic control one-way valve will seal oil duct, and operator's compartment is stopped in needed position, and not worry that it falls after rise; And when falling after rise, hydraulic control one-way valve will be opened under the effect of high back voltage oil, can actv. control backhaul, and hydraulic control one-way valve has only high pressure oil to do the time spent just to move.
The effect of one-way throttle valve 12 is backhaul throttlings, excessive velocities when avoiding operator's compartment to fall.These valves all are inserted valves.Oil cylinder 4 is made of two-layer, and exocoel is made up of oil cylinder 4 and overcoat 2, and inner chamber is equipped with piston.
Embodiment 2:
In order to realize some vehicle cab suspension Fu needs, improve the working environment of operator's compartment, install follow-up mechanism additional in piston rod inside, the following (see figure 2) of concrete structure:
The piston rod 5 of embodiment 1 is processed into hollow form and forms slave cylinder, in piston rod 5 inside of hollow form piston follower 6 is installed; Bottom at piston rod 5 is connected with piston 7 by seam and bearing pin; Piston follower 6 has four road annular grooves, and going up together most is compression ring, and second and four roads are support ring, and the 3rd road is an oil sealing; Piston has three road annular grooves, and first and three roads are oil sealing, and second road is a support ring; The oil duct that has two symmetries in the middle of piston 7 leads to piston follower 6; The suspension ring 1 that adapt therewith are provided with deflation hole;
Other structure is identical with embodiment 1.
The present invention has following function:
1. electric/manual one hydraulic lifting function
In the automotive use process, run into the situation that storage battery does not have electricity or motor to damage sometimes, for preventing that this moment, system can not work, install hydraulic hand-pump 8 and corresponding check valve group and corresponding oil circuit on body 17 additional, the lifting of operator's compartment at this moment, the power that stops, falling after rise are implemented by hydraulic hand-pump 8;
2. safe unloading function
In the lifting process, if the piston in the hydraulic actuating cylinder has arrived top dead point, this moment, motor-drive pump still worked on, and will cause internal system pressure excessive, easily caused motor overload that it is damaged; For avoiding the generation of this type of accident, on body 17 high pressure oil mains line, install safe unloader valve additional, realize protective effect;
3. throttling at the uniform velocity falls function after rise
Operator's compartment will make it fall after rise with certain acceleration owing to be subjected to the effect of self gravitation in the falling process; For avoiding falling speed too fast, in body 17, install one-way throttle valve additional; Flow regulating valve is inoperative in the lifting process, through the flow regulating valve throttling, allows operator's compartment fall after rise slowly with certain speed in the falling process;
4. hydraulic control one-way valve pressure holding function
In the long-term use process, sealing element will produce wearing and tearing, leak for avoiding this moment, guarantee that the operator's compartment after the lifting does not fall after rise, and (after change-over valve) installs hydraulic control one-way valve additional on the lifting oil circuit of body 17; Make it enter packing state after lifting plays operator's compartment, the high pressure oil reverse reflux will be realized the one-level pressurize by hydraulic control one-way valve during to hydraulic control one-way valve, carry out the secondary pressurize by change-over valve simultaneously.
Claims (8)
1, electric/manual lifting device for driver's cab turnover is made up of lifting device body (17), electric hydraulic pump (16) and oil cylinder, it is characterized in that:
Right part on body (17) is equipped with oil cylinder, and the left side of oil cylinder is equipped with electrical motor (16) on body (17), and the eccentric shaft of the Hydraulic Pump that electrical motor (16) is interior with being installed in body (17) is connected;
The reversing control valve (10) of plunger pump, by pass valve, steering unit is installed from left to right successively in the front of described lifting device body (17);
In the back of described lifting device body (17) check valve, flow regulating valve, reversing control valve (10) and plunger pump are installed successively from left to right;
Two check valves successively from left to right in the left side of described lifting device body (17);
Bottom surface and central oil duct left and right symmetrically at described lifting device body (17) are equipped with two check valves;
Have the oil duct that connects all installing components on the body in described lifting device body interior;
Suspension ring (1) and piston rod (5) link by straight pin, in by the steel wire snap ring oscillating bearing being fixed in the suspension ring (1);
Described oil cylinder is made up of oil cylinder overcoat (2), oil cylinder (4), piston rod (5) and piston (7), oil cylinder (4) is connected with body (17) by screw thread, oil return pipe (3) is inserted on the body (17) on oil cylinder (4) right side, overcoat (2) is installed in the outside of oil cylinder (4) and oil return pipe (3), overcoat (2) and body (17) free-running fit are by O shape ring radial seal; Clamp nut (19) by oil cylinder (4) top screw thread oil cylinder (4) is fastened on the body (17) together with overcoat (2); The top of oil return pipe (3) is inserted in the spacer shell (18) that is installed to overcoat top, has 4 oilholes in oil cylinder (4) and spacer shell (18) annular groove junction; In the inside of oil cylinder (4) piston rod (5) is installed;
Described piston rod (5) is the cylinder bodily form; Bottom at piston rod (5) is connected with piston (7) by seam and bearing pin; Piston (7) has three road annular grooves, and first and three roads are oil sealing, and second road is a support ring;
2, electric/manual lifting device for driver's cab turnover according to claim 1, it is characterized in that: the right side of oil cylinder is equipped with manual pump (8) on body (17), and manual pump (8) is connected in parallel by oil duct and the electric hydraulic pump (16) that body (17) inside has.
3, electric/manual lifting device for driver's cab turnover according to claim 1 and 2 is characterized in that:
Described piston rod (5) is processed into hollow form and forms slave cylinder, in piston rod (5) inside of hollow form piston follower (6) is installed; Bottom at piston rod (5) is connected with piston (7) by seam and bearing pin; Piston follower (6) has four road annular grooves, and going up together most is compression ring, and second and four roads are support ring, and the 3rd road is an oil sealing; Piston (7) has three road annular grooves, and first and three roads are oil sealing, and second road is a support ring; The oil duct that has two symmetries in the middle of piston (7) leads to piston follower (6); The suspension ring (1) that adapt therewith are provided with deflation hole.
4, electric/manual lifting device for driver's cab turnover according to claim 1 is characterized in that:
Described reversing control valve (10) is the 3-position 4-way rotary valve, or the two-position four-way rotary valve.
5, electric/manual lifting device for driver's cab turnover according to claim 1 is characterized in that:
Described reversing control valve (10) is the straight valve of 3-position 4-way, or the straight valve of two-position four-way.
6, electric/manual lifting device for driver's cab turnover according to claim 4 is characterized in that:
The rotary valve (10) that described steering unit adopts is the 3-position 4-way hand change over valve, be installed in the bottom of oil cylinder cavity, the spool left end is stifled and finish axial location by O type ring seal by plug, and the spool right-hand member mills the gap position by holddown spring and self plat mill part branch with joystick and is connected; The dividing device that joystick is made up of upper right side pressure pearl and spring Top silk carries out per 45 degree calibration; The joystick right-hand member has gland and dust-proof seal ring, and pressured lid seam inside groove is spacing, and the relevant position is equipped with locking pin on the joystick.
7, electric/manual lifting device for driver's cab turnover according to claim 1 is characterized in that: described electric hydraulic pump is provided with 1-6 plunger pump.
8, electric/manual lifting device for driver's cab turnover according to claim 1 is characterized in that: described electric hydraulic pump is provided with 2 plunger pumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100168569A CN100335336C (en) | 2005-06-07 | 2005-06-07 | Electric/manual lifting device for driver's cab turnover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100168569A CN100335336C (en) | 2005-06-07 | 2005-06-07 | Electric/manual lifting device for driver's cab turnover |
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| CN1709760A true CN1709760A (en) | 2005-12-21 |
| CN100335336C CN100335336C (en) | 2007-09-05 |
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| CNB2005100168569A Expired - Fee Related CN100335336C (en) | 2005-06-07 | 2005-06-07 | Electric/manual lifting device for driver's cab turnover |
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| CN101100200B (en) * | 2007-08-02 | 2010-05-19 | 王树革 | Entirety type electric and manual hydraulic lifter for overturning driving cab |
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| CN103807246A (en) * | 2014-01-24 | 2014-05-21 | 大连液压件有限公司 | Automobile cab follow-up lifting cylinder |
| CN104210408A (en) * | 2014-09-05 | 2014-12-17 | 刘永祯 | Combined hydraulic lifting machine |
| CN104316355A (en) * | 2013-12-14 | 2015-01-28 | 西安天厚滤清技术有限责任公司 | Oil sampler |
| CN104925146A (en) * | 2015-04-01 | 2015-09-23 | 安徽德鸿机件制造有限公司 | Integrated overturn electric hydraulic pump cylinder for cab of heavy truck |
| CN109153415A (en) * | 2016-04-28 | 2019-01-04 | 鲍曼有限公司 | The motor vehicles with lifting cabin for conveying people and cargo |
| CN109340221A (en) * | 2018-12-09 | 2019-02-15 | 无锡市东舟船舶设备股份有限公司 | A kind of totally enclosed type hydraulic power unit device |
| CN112319630A (en) * | 2020-11-03 | 2021-02-05 | 北奔重型汽车集团有限公司 | Remote control tipping device for truck cab |
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| NL1002460C2 (en) * | 1996-02-27 | 1997-08-28 | Applied Power Inc | Electro-hydraulic tilting device for a vehicle with a tilting cabin. |
| JP2003104245A (en) * | 2001-09-28 | 2003-04-09 | Sanwa Seiki Co Ltd | Cab tilt device and oil pump |
| CN2637288Y (en) * | 2003-07-19 | 2004-09-01 | 东风汽车公司设备制造厂分公司 | Lifting oil cylinder of driving chamber hydraulic tilting mechanism |
| CN2658019Y (en) * | 2003-07-19 | 2004-11-24 | 东风汽车公司设备制造厂分公司 | Hydraulic turnover mechanism for vehicle cab |
| CN2637287Y (en) * | 2003-07-19 | 2004-09-01 | 东风汽车公司设备制造厂分公司 | Oil pump unit assemblage of driving chamber hydraulic tilting mechanism |
| CN2806269Y (en) * | 2005-06-07 | 2006-08-16 | 金建平 | Lifting device for turnover of driving cab |
-
2005
- 2005-06-07 CN CNB2005100168569A patent/CN100335336C/en not_active Expired - Fee Related
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| CN101100200B (en) * | 2007-08-02 | 2010-05-19 | 王树革 | Entirety type electric and manual hydraulic lifter for overturning driving cab |
| CN102700629A (en) * | 2012-03-30 | 2012-10-03 | 包头北奔重型汽车有限公司 | Lift oil cylinder of tilting system of mid-sized automotive cab or heavy automotive cab |
| CN104316355A (en) * | 2013-12-14 | 2015-01-28 | 西安天厚滤清技术有限责任公司 | Oil sampler |
| CN103661670A (en) * | 2013-12-31 | 2014-03-26 | 东风汽车公司 | Automobile auxiliary wheel device |
| CN103807246A (en) * | 2014-01-24 | 2014-05-21 | 大连液压件有限公司 | Automobile cab follow-up lifting cylinder |
| CN104210408A (en) * | 2014-09-05 | 2014-12-17 | 刘永祯 | Combined hydraulic lifting machine |
| CN104925146A (en) * | 2015-04-01 | 2015-09-23 | 安徽德鸿机件制造有限公司 | Integrated overturn electric hydraulic pump cylinder for cab of heavy truck |
| CN104925146B (en) * | 2015-04-01 | 2017-12-29 | 安徽德鸿机件制造有限公司 | A kind of cab of heavy truck overturns integral electric hydraulic pump cylinder |
| CN109153415A (en) * | 2016-04-28 | 2019-01-04 | 鲍曼有限公司 | The motor vehicles with lifting cabin for conveying people and cargo |
| CN109340221A (en) * | 2018-12-09 | 2019-02-15 | 无锡市东舟船舶设备股份有限公司 | A kind of totally enclosed type hydraulic power unit device |
| CN112319630A (en) * | 2020-11-03 | 2021-02-05 | 北奔重型汽车集团有限公司 | Remote control tipping device for truck cab |
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