Spindle box assembling auxiliary equipment

Abstract

The utility model relates to the technical field of spindle box production equipment, in particular to spindle box assembly auxiliary equipment which comprises a base, a lifting device and a hydraulic cylinder. The auxiliary equipment further comprises an oil supply pump, an oil tank, a first electromagnetic directional valve, a second electromagnetic directional valve, a first leakage type hydraulic control one-way valve, a second leakage type hydraulic control one-way valve and a third electromagnetic directional valve. The third electromagnetic reversing valve is connected with a hydraulic motor which is connected with a generator, and the generator is connected with a storage battery. After the technical scheme is adopted, oil liquid between the first leakage type hydraulic control one-way valve and the second leakage type hydraulic control one-way valve and flowing out of the rodless cavity can be effectively utilized to generate electricity, the electricity is stored in the storage battery, and energy recovery is achieved; the first leakage type hydraulic control one-way valve and the second leakage type hydraulic control one-way valve which are connected in series work simultaneously, it is guaranteed that the lifting platform does not sink easily, and the lifting platform is relatively stable.

Description

Technical Field

[0001] The utility model relates to the technical field of spindle box production equipment, in particular to a spindle box assembly auxiliary device. Background Art

[0002] When installing large bearings on shafts, vertical installation is often inconvenient due to the large size of the shaft and bearings. Instead, horizontal installation is typically employed. Large bearings often require a hydraulic press to press the bearings in. Different horizontally positioned spindle boxes often require different spindle heights for bearing installation. Since the output shaft of a hydraulic press is typically fixed, assembly auxiliary equipment with a lifting platform is typically used to control the spindle height to ensure coaxial alignment with the hydraulic press's output shaft. Auxiliary equipment with a lifting platform is typically hydraulically controlled.

[0003] A Chinese utility model patent document, authorized with publication number CN213802754U, discloses a hydraulic cylinder-based lifting device. The device comprises a base plate, the upper surface of which is symmetrically mounted with two hydraulic cylinders. The piston rods of the two hydraulic cylinders are welded to a cargo platform. Two second fixed blocks are welded to the outer walls of the base plate. The inner walls of the two second fixed blocks are rotatably connected to a first rod via bearings. A first bevel gear is welded to the outer wall of the first rod. A motor drives a third bevel gear, providing power to the third rod, enabling the device to operate normally. When in use, the hydraulic cylinders of this lifting device are connected to an external oil tank and oil pump. This device lacks an energy recovery function and is unable to recover the energy of the pressurized oil in the hydraulic oil circuit, resulting in relatively high energy loss. Furthermore, the device lacks leak prevention measures for the hydraulic system. After the lifting device is raised, the cargo platform is prone to sinking during docking due to hydraulic system leakage, making it impossible to ensure the docking stability of the cargo platform. Consequently, the stability of the cargo platform is relatively poor.

[0004] In view of this, the applicant conducted an in-depth study on the above issues, which led to the present case. Utility Model Content

[0005] The purpose of the utility model is to provide a main spindle box assembly auxiliary device with relatively small energy loss and relatively stable lifting platform.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A spindle box assembly auxiliary device, comprising a base mounted with a force-applying oil cylinder, a lifting device having a lifting platform, and a hydraulic cylinder mounted on the base and used to drive the lifting platform to move up and down, the hydraulic cylinder having a rodless cavity and a rod cavity, the auxiliary device also comprising a hydraulic system, the hydraulic system comprising an oil supply pump, an oil tank, a first electromagnetic reversing valve, a second electromagnetic reversing valve, a first external leakage hydraulically controlled one-way valve, a second external leakage hydraulically controlled one-way valve, and a third electromagnetic reversing valve;

[0008] The oil inlet of the oil supply pump is connected to the oil tank, and the oil outlet of the oil supply pump is connected to the oil inlet of the first electromagnetic reversing valve and the oil inlet of the second electromagnetic reversing valve at the same time;

[0009] The working oil port B of the first electromagnetic reversing valve is connected to the oil inlet of the first external leakage hydraulically controlled one-way valve, the working oil port A of the first electromagnetic reversing valve is connected to the rod chamber, and the oil return port of the first electromagnetic reversing valve is connected to the oil tank;

[0010] The working port A and the oil return port of the second electromagnetic reversing valve are both connected to the oil tank, the working port B of the second electromagnetic reversing valve is connected to the control port of the first external leakage type hydraulically controlled one-way valve, and the control port of the second electromagnetic reversing valve is connected to the rod chamber;

[0011] The oil outlet of the first external leakage type hydraulically controlled one-way valve is connected to the oil inlet of the second external leakage type hydraulically controlled one-way valve, and the leakage port of the first external leakage type hydraulically controlled one-way valve is connected to the oil inlet of the third electromagnetic reversing valve;

[0012] The oil outlet of the second external leakage type hydraulically controlled one-way valve is connected to the rodless chamber, and the external leakage port of the second external leakage type hydraulically controlled one-way valve is connected to the oil inlet of the third electromagnetic reversing valve;

[0013] The oil discharge port of the third electromagnetic reversing valve is connected to the oil tank, the oil outlet is connected to a hydraulic motor, the output shaft of the hydraulic motor is transmission-connected to a generator, and the output end of the generator is electrically connected to a battery.

[0014] Preferably, the working oil port A of the first solenoid reversing valve is connected to a third external leakage type hydraulically controlled one-way valve, the oil outlet of the third external leakage type hydraulically controlled one-way valve is connected to the rod chamber, the control port of the first solenoid reversing valve is connected to the working oil port A of the first solenoid reversing valve, and the leakage port of the first solenoid reversing valve is connected to the oil tank.

[0015] Preferably, it also includes a first one-way valve and a throttle valve, the oil inlet of the first one-way valve is connected to the oil outlet of the oil supply pump, the oil outlet of the first one-way valve is simultaneously connected to the oil inlet of the second solenoid reversing valve and the oil inlet of the throttle valve, and the oil outlet of the throttle valve is connected to the oil inlet of the first solenoid reversing valve.

[0016] Preferably, the oil outlet of the hydraulic motor is connected to a second one-way valve, and the oil outlet of the second one-way valve is connected to the oil outlet of the first one-way valve; the oil outlet of the oil supply pump is also connected to a pressure gauge and an electromagnetic overflow valve, and the oil outlet of the electromagnetic overflow valve is connected to the oil tank.

[0017] Preferably, the lifting device includes a connecting mechanism, a vertically arranged guide mechanism and a horizontally arranged support frame; the lifting platform is arranged horizontally and located above the support frame, and the connecting mechanism is located between the support frame and the lifting platform; the lower end of the guide mechanism is installed on the support frame, and the upper end is installed on the lifting platform;

[0018] The connecting mechanism includes a first rod group, a second rod group and a horizontally arranged connecting frame;

[0019] The first rod group includes an upper connecting rod and a lower connecting rod arranged corresponding to the upper connecting rod, the upper connecting rod and the lower connecting rod having the same length; the upper connecting rod and the lower connecting rod corresponding to each other are symmetrically arranged with the connecting frame as the center; the second rod group has the same structure and size as the first rod group and is arranged in parallel;

[0020] One end of each upper connecting rod is rotatably connected to the connecting frame, and the other end is rotatably connected to the lifting platform; one end of each lower connecting rod is rotatably connected to the connecting frame, and the other end is rotatably connected to the supporting frame;

[0021] The rotation planes of the upper connecting rods and the lower connecting rods are arranged vertically and are arranged parallel to each other;

[0022] The projections of the upper connecting rod of the second connecting rod group and the upper connecting rod of the first connecting rod group on any rotation plane of the upper connecting rod are staggered;

[0023] The projections of the lower connecting rod of the second connecting rod group and the lower connecting rod of the first connecting rod group on any rotation plane of the lower connecting rod are staggered;

[0024] The piston rod of the hydraulic cylinder is arranged parallel to the rotation plane of any one of the upper connecting rods or any one of the lower connecting rods. The piston rod of the hydraulic cylinder is rotatably connected to the connecting frame, and the cylinder body is rotatably connected to the base.

[0025] Preferably, the connecting frame includes a force transmission rod, a first shaft and a second shaft; the first shaft and the second shaft are arranged in parallel; the upper connecting rod and the lower connecting rod of the first rod group are both rotatably connected to the first shaft; the upper connecting rod and the lower connecting rod of the second rod group are both rotatably connected to the second shaft; one end of the force transmission rod is connected to the first shaft through a connecting rod sleeve, and the other end is connected to the second shaft through a connecting rod sleeve; the piston rod of the hydraulic cylinder is arranged perpendicular to the first shaft, and the piston rod of the hydraulic cylinder is rotatably connected to the first shaft.

[0026] Preferably, both the first shaft and the second shaft are equipped with intermediate components;

[0027] In the first rod group, there are two upper connecting rods and two lower connecting rods, the two upper connecting rods are of the same length and arranged in parallel, the two upper connecting rods correspond to the two lower connecting rods one-to-one, and the two upper connecting rods and the two lower connecting rods are both rotatably connected to the intermediate member of the first shaft;

[0028] In the second rod assembly, the two upper links and the two lower links are both rotatably connected to the intermediate member of the second shaft.

[0029] Preferably, the upper connecting rod and the lower connecting rod of the first rod group are both rotatably connected to the first shaft through needle bearings; the upper connecting rod and the lower connecting rod of the second rod group are both rotatably connected to the second shaft through needle bearings.

[0030] Preferably, the base includes a first seat, a second seat and two connecting boxes arranged parallel to each other, and the first seat and the second seat are arranged opposite to each other; one end of the two connecting boxes is fixed to the first seat, and the other end is fixed to the second seat; the first seat, the second seat and the two connecting boxes together form a first area, the lifting device and the hydraulic cylinder are located in the first area, and the cylinder body of the hydraulic cylinder is rotatably connected to the first seat.

[0031] Preferably, the first seat includes a vertically arranged first end plate, the second seat includes a vertically arranged second end plate, one end of the two connecting boxes is fixed to the first end plate, and the other end is fixed to the second end plate;

[0032] One side of the first end plate is close to the lifting device, and the other side is fixed with a plurality of vertically arranged first stiffening plates, each of the first stiffening plates is linearly spaced apart, and a plurality of linearly spaced first transverse partitions are connected between two adjacent first stiffening plates;

[0033] One side of the second end plate is close to the lifting device, and the other side is fixed with a plurality of vertically arranged second stiffening plates, each of the second stiffening plates is linearly spaced, and a plurality of linearly spaced second transverse partitions are connected between adjacent second stiffening plates;

[0034] The cylinder body of the hydraulic cylinder is rotatably connected to the first end plate.

[0035] By adopting the above technical solution, the beneficial effects of the utility model are:

[0036] After the oil pump is turned on, the oil inlet of the second solenoid valve is turned off, and the oil pressure drop is increased, and the oil pressure drop is increased, and the oil pressure drop is increased. When pressure is applied, the first solenoid reversing valve turns to the middle position, the oil inlet of the second external leakage type hydraulic control one-way valve is closed, the second solenoid reversing valve turns to the upper position, and at the same time, the control port of the first external leakage type hydraulic control one-way valve is unloaded and closed, and the oil inlet of the first external leakage type hydraulic control one-way valve is also closed. At this time, there is no oil pressure between the first external leakage type hydraulic control one-way valve and the second external leakage type hydraulic control one-way valve, avoiding back pressure. The first external leakage type hydraulic control one-way valve and the second external leakage type hydraulic control one-way valve in series work at the same time, ensuring that the double lock is leak-free, eliminating the sinking phenomenon when the lifting platform is docked, which is conducive to ensuring that the lifting platform does not sink and the lifting platform is relatively stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a structural diagram of the spindle box assembly auxiliary equipment of the utility model;

[0038] Figure 2 This is a structural diagram of the hydraulic system and hydraulic cylinder of the utility model;

[0039] Figure 3 This is a schematic diagram of the assembly structure of the lifting device and the hydraulic cylinder of the utility model;

[0040] Figure 4 This is a schematic diagram of the assembly structure of the connecting mechanism and the hydraulic cylinder of the utility model;

[0041] Figure 5 This is a schematic cross-sectional structure diagram of the base of the present utility model;

[0042] Figure 6 It is a structural schematic diagram of the connecting mechanism of the present invention at the position of the intermediate component.

[0043] In the picture:

[0044] 100-base; 110-first seat;

[0045] 111-first end plate; 112-first stiffening plate;

[0046] 113-first transverse diaphragm; 114-force application cylinder;

[0047] 120 - second seat; 121 - second end plate;

[0048] 122-second stiffening plate; 123-second transverse diaphragm;

[0049] 130-connecting box;

[0050] 200-hydraulic cylinder;

[0051] 21-rodless cavity; 22-rod cavity;

[0052] 30-fuel tank; 50-fuel pump;

[0053] 51-first one-way valve; 52-second solenoid reversing valve;

[0054] 54-throttle valve; 55-first electromagnetic reversing valve;

[0055] 56-pressure gauge; 57-electromagnetic overflow valve;

[0056] 61-third electromagnetic reversing valve; 62-hydraulic motor;

[0057] 63-generator; 64-battery;

[0058] 65- second one-way valve;

[0059] 70-first external leakage hydraulic control one-way valve;

[0060] 80-Second external leakage hydraulic control one-way valve;

[0061] 90-third external leakage hydraulic control one-way valve;

[0062] 300-lifting device;

[0063] 310-connecting mechanism; 311-first rod group;

[0064] 311a-upper connecting rod; 311b-lower connecting rod;

[0065] 312-Second rod group;

[0066] 313-connecting frame; 313a-first axis;

[0067] 313b-second shaft; 313c-force transmission rod;

[0068] 313d-intermediate member;

[0069] 320-guide mechanism; 330-support frame;

[0070] 340-Lifting platform. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0072] Example 1

[0073] like Figures 1 to 5 As shown, this embodiment provides a spindle box assembly auxiliary device, including a base 100, a lifting device 300 having a lifting platform 340, and a hydraulic cylinder 200 installed on the base 100 and used to drive the lifting platform to move up and down.

[0074] The hydraulic cylinder 20 is a differential oil cylinder having a rodless chamber 21, a rod chamber 22 and a piston rod inserted into the rod chamber 22. The area of the rodless chamber 21 is more than twice the area of the rod chamber 22. This type of hydraulic cylinder can be purchased directly from the market.

[0075] The lifting device 300 includes a connecting mechanism 310, a vertically arranged guide mechanism 320 and a horizontally arranged support frame 330; the lifting platform 340 is arranged horizontally and is located above the support frame 330. The lifting platform 340 is used to place the spindle box. When in use, the spindle box is placed on the upper end surface of the lifting platform 340; the connecting mechanism is located between the support frame 330 and the lifting platform 340; the guide mechanism 320 includes a guide column and a guide cylinder that are coaxial with each other and arranged vertically respectively. The lower end of the guide cylinder is fixed to the upper end of the support frame 330, and the upper end of the guide column is fixed to the lower end of the lifting platform 340. The lower end of the guide column is inserted into the guide cylinder from the upper end of the guide cylinder, and the guide column and the guide cylinder are vertically slidably connected.

[0076] The connecting mechanism 310 includes a first rod group 311, a second rod group 312 and a horizontally arranged connecting frame 313. The connecting frame 313 includes a force transmission rod 313c, a first shaft 313a and a second shaft 313b.

[0077] The first shaft 313a and the second shaft 313b are arranged in parallel, the force transmission rod 313c is located between the first shaft 313a and the second shaft 313b and is arranged perpendicular to the first shaft 313a, one end of the force transmission rod 313c is connected to the first shaft 313a through a connecting rod sleeve, and the other end is connected to the second shaft 313b through a connecting rod sleeve.

[0078] The first rod group 311 includes an upper link 311a and a corresponding lower link 311b. The upper and lower links 311a and 311b are identical in length and are symmetrically arranged around the connecting frame 313. The second rod group 312 has the same structure and dimensions as the first rod group 311 and is arranged parallel to the first rod group 311.

[0079] Each upper connecting rod 311 a is rotatably connected to the connecting frame 313 at one end and rotatably connected to the lifting platform 340 at the other end; each lower connecting rod 311 b is rotatably connected to the connecting frame 313 at one end and rotatably connected to the supporting frame 330 at the other end.

[0080] The rotation planes of the upper connecting rods 311a and the lower connecting rods 311b are arranged vertically and are arranged parallel to each other.

[0081] The projections of the upper link 311 a of the second link group 312 and the upper link 311 a of the first link group 311 on the rotation plane of any upper link 311 a are staggered;

[0082] The projections of the lower connecting rod 311b of the second rod group 312 and the lower connecting rod 311b of the first rod group 311 on any rotation plane of the lower connecting rod 311b are staggered;

[0083] The connection structure between the upper connecting rod 311a and the lifting platform 340 is as follows: a first lug is provided at the lower end of the lifting platform 340, and the upper connecting rod 311a and the first lug are respectively provided with corresponding first rotating holes, and the same first rotating rod is connected to the corresponding first rotating holes.

[0084] The connection structure between the lower connecting rod 311b and the support frame 330 is as follows: a second lug is provided at the upper end of the support frame 330, and the lower connecting rod 311b and the first lug are respectively provided with corresponding second rotation holes, and the same second rotation rod is connected to the corresponding second rotation holes.

[0085] The connection structure between the upper connecting rod 311a and the connecting frame 313 is as follows: the upper connecting rod 311a of the first rod group 311 is provided with a third rotating hole that cooperates with the first shaft 313a, and the third rotating hole is sleeved on the first shaft 313a and is rotatably connected to the first shaft 313a; the upper connecting rod 311a of the second rod group 312 is provided with a fourth rotating hole that cooperates with the second shaft 313b, and the fourth rotating hole is sleeved on the second shaft 313b and is rotatably connected to the second shaft 313b.

[0086] The connection structure between the lower connecting rod 311a and the connecting frame 313 is as follows: the lower connecting rod 311b of the first rod group 311 is provided with a fifth rotating hole that cooperates with the first shaft 313a, and the fifth rotating hole is sleeved on the first shaft 313a and is rotatably connected to the first shaft 313a; the lower connecting rod 311a of the second rod group 312 is provided with a sixth rotating hole that cooperates with the second shaft 313b, and the sixth rotating hole is sleeved on the second shaft 313b and is rotatably connected to the second shaft 313b.

[0087] To reduce rotational friction between the upper link 311a of the first lever assembly 311 and the first shaft 313a and improve flexibility at the hinge, the upper link 311a of the first lever assembly 311 is rotationally connected to the first shaft 313a via a needle bearing. Compared to ball bearings, needle bearings provide more uniform contact stress distribution when subjected to force. Similarly, the lower link 311b of the first lever assembly 311 is also rotationally connected to the first shaft 313a via a needle bearing. Both the upper link 311a and the lower link 311b of the second lever assembly 312 are rotationally connected to the second shaft 313b via needle bearings.

[0088] The first rotating rods are on the same horizontal plane, and the second rotating rods are on the same horizontal plane.

[0089] The first rotating rods, the second rotating rods, the first axis 313a and the second axis 313b are arranged parallel to each other in pairs. The first rotating rod connected to the upper connecting rod 311a of the first rod group 311 and the first rotating rod connected to the upper connecting rod 311a of the second rod group 312 are not arranged coaxially with each other. The second rotating rod connected to the lower connecting rod 311b of the first rod group 311 and the second rotating rod connected to the lower connecting rod 311b of the second rod group 312 are not arranged coaxially with each other.

[0090] The axial distance between the first rotating rod connected to the upper connecting rod 311a of the first rod group 311 and the first rotating rod connected to the upper connecting rod 311a of the second rod group 312 is equal to the axial distance between the first axis 313a and the second axis 313b; the axial distance between the second rotating rod connected to the lower connecting rod 311b of the first rod group 311 and the second rotating rod connected to the lower connecting rod 311b of the second rod group 312 is equal to the axial distance between the first axis 313a and the second axis 313b.

[0091] The force transmission rod 313c is located between the first shaft 313a and the second shaft 313b and is arranged perpendicular to the first shaft 313a. One end of the force transmission rod 313c is connected to the first shaft 313a through a connecting rod sleeve, and the other end is connected to the second shaft 313b through a connecting rod sleeve.

[0092] In this embodiment, there are two first rod groups 311, one of which is connected to one end of the first shaft 313a, and the other is connected to the other end of the first shaft 313a; there are two second rod groups 312, one of which is connected to one end of the first shaft 313b, and the other is connected to the other end of the first shaft 313b.

[0093] The base 100 includes a first base 110, a second base 120, and two parallel connecting housings 130. The first base 110 and the second base 120 are arranged opposite each other. A force cylinder 114 is mounted on the first base 110. This force cylinder 114 is used to press the bearing into the spindle of the spindle box. It should be noted that the force cylinder 114 is a conventional, commercially available device. In this embodiment, the first base 110 includes a vertically arranged first end plate 111, and the second base 120 includes a vertically arranged second end plate 121. The first end plate 111 and the second end plate 121 are arranged opposite each other.

[0094] For the sake of convenience, the side of the first end plate 111 facing the second end plate 121 is the inner side of the first end plate 111, and the other side is the outer side of the first end plate 111; the side of the second end plate 121 facing the first end plate 111 is the inner side of the second end plate 121, and the other side is the outer side of the second end plate 121.

[0095] To increase the overall rigidity of the first seat 110, a plurality of vertically arranged first stiffening plates 112 are fixed to the outside of the first end plate 111, and each first stiffening plate 112 is arranged at linear intervals. Furthermore, a plurality of linearly spaced first transverse partitions 113 are connected between two adjacent first stiffening plates 112. Providing a first transverse partition 113 between two adjacent first stiffening plates 112 can increase the overall stability of the first stiffening plates 112 and prevent the first stiffening plates 112 from locally buckling or twisting when subjected to stress. Furthermore, providing the first transverse partition 113 also helps to more evenly distribute the load between the first stiffening plates 112, reducing local stress concentration. Similarly, a plurality of vertically arranged second stiffening plates 122 are fixed to the outside of the second end plate 121, and each second stiffening plate 122 is arranged at linear intervals. A plurality of linearly spaced second transverse partitions 123 are connected between two adjacent second stiffening plates 122.

[0096] Each of the two connecting boxes 130 has one end facing the first seat 110 and the other end facing the second seat 120. Furthermore, the ends of the two connecting boxes 130 facing the first seat 130 are fixed to the first seat 130, and the ends of the two connecting boxes 130 facing the second seat 120 are fixed to the second seat 120. The first seat 110, the second seat 120, and the two connecting boxes 130 collectively form a first area. In this embodiment, the ends of the two connecting boxes 130 facing the first seat 110 are fixed to the inner side of the first end plate 111, and the ends facing the second seat 120 are fixed to the inner side of the second end plate 121.

[0097] The lifting device 300 and the hydraulic cylinder 200 are both located in the first area, with one end of the lifting device 300 facing the first end plate 111 and the other end facing the second end plate 121. The first rod group 311 and the first shaft 313a are both located on the end of the lifting device 300 facing the first end plate 111; the second rod group 312 and the second shaft 313b are both located on the end of the lifting device 300 facing the second end plate 121.

[0098] The piston rod of the hydraulic cylinder 200 is arranged parallel to the rotation plane of any upper connecting rod 311a or any lower connecting rod 311b, the piston rod of the hydraulic cylinder 200 is rotatably connected to the connecting frame 313, and the cylinder body is rotatably connected to the base 100. In this embodiment, the cylinder body of the hydraulic cylinder 200 is rotatably connected to the inner side of the first end plate 111, the piston rod of the hydraulic cylinder 200 is rotatably connected to the first shaft 313a, and the piston rod of the hydraulic cylinder 200 is arranged perpendicular to the first shaft 313a.

[0099] The connection structure between the hydraulic cylinder 200 and the first end plate 111 is as follows: an end joint is fixed to the end of the cylinder body of the hydraulic cylinder 200 away from the piston rod, and a connecting lug is fixed to the inner side of the first end plate 111. The end joint and the connecting lug are respectively provided with corresponding seventh rotation holes, and the same seventh rotation rod is connected to the corresponding seventh rotation holes.

[0100] The connection structure between the hydraulic cylinder 200 and the first shaft 313a is as follows: the piston rod of the hydraulic cylinder 200 is fixed with a spherical bearing, the inner ring of the spherical bearing is installed on the first shaft 313a, and the outer ring of the spherical bearing is fixed on the piston rod of the hydraulic cylinder 200.

[0101] The spindle box assembly auxiliary equipment provided in this embodiment also includes a hydraulic system, which includes an oil supply pump 50, an oil tank 30, a first solenoid reversing valve 55, a second solenoid reversing valve 52, a first external leakage type hydraulically controlled one-way valve 70, a second external leakage type hydraulically controlled one-way valve 80 and a third solenoid reversing valve 61.

[0102] In this embodiment, the first solenoid reversing valve 55 and the second solenoid reversing valve 52 are both three-position four-way valves, both having an oil inlet, an oil return port, a working oil port A and a working oil port B. Specifically, the first solenoid reversing valve 55 and the second solenoid reversing valve 52 have the same structure. Taking the first solenoid reversing valve 55 as an example, when the first solenoid reversing valve 55 is in the upper position, the oil inlet is connected to the working oil port A, and the oil return port is connected to the working oil port B. When the first solenoid reversing valve 55 is in the middle position, all oil ports are closed. When the first solenoid reversing valve 55 is in the lower position, the oil inlet is connected to the working oil port B, and the oil return port is connected to the working oil port A.

[0103] The third solenoid reversing valve 61 is a two-position, three-way valve with an oil inlet, an oil outlet, and an oil dump port. When the third solenoid reversing valve 61 is in the left position, the oil inlet and oil outlet are connected. When the third solenoid reversing valve 61 is in the right position, the oil inlet and oil dump port are connected. The first and second external-leakage hydraulically-controlled one-way valves 70 and 80 both have an oil inlet, an oil outlet, an external drain port, and a control port.

[0104] The oil inlet of the oil supply pump 50 is connected to the oil tank 30, and the oil outlet of the oil supply pump 50 is connected to both the oil inlet of the first solenoid reversing valve 55 and the oil inlet of the second solenoid reversing valve 52. The oil outlet of the oil supply pump 50 can be directly connected to both the oil inlet of the first solenoid reversing valve 55 and the oil inlet of the second solenoid reversing valve 52. In this embodiment, the spindle box assembly auxiliary device further includes a first check valve 51 and a throttle valve 54. The oil inlet of the first check valve 51 is connected to the oil outlet of the oil supply pump 50, and the oil outlet of the first check valve 51 is connected to both the oil inlet of the second solenoid reversing valve 52 and the oil inlet of the throttle valve 54. The oil outlet of the throttle valve 54 is connected to the oil inlet of the first solenoid reversing valve 55. In other words, the oil outlet of the oil supply pump 50 is indirectly connected to both the oil inlet of the first solenoid reversing valve 55 and the oil inlet of the second solenoid reversing valve 52. In addition, the oil outlet of the oil supply pump 50 is also connected to a pressure gauge 56 and an electromagnetic relief valve 57 , and the oil outlet of the electromagnetic relief valve 57 is connected to the oil tank 30 .

[0105] The working oil port B of the first solenoid reversing valve 55 is connected to the oil inlet of the first external leakage type hydraulically controlled one-way valve 70. The working oil port A of the first solenoid reversing valve 55 is connected to the rod chamber 22. The oil return port of the first solenoid reversing valve 55 is connected to the oil tank 30. The working oil port A of the first solenoid reversing valve 55 can be directly connected to the rod chamber 22. In this embodiment, the working oil port A of the first solenoid reversing valve 55 is connected to the third external leakage type hydraulically controlled one-way valve 90. The third external leakage type hydraulically controlled one-way valve 90 has an oil inlet, an oil outlet, an external leakage port, and a control port. The oil outlet of the third external leakage type hydraulically controlled one-way valve 90 is connected to the rod chamber 22, the control port is connected to the working oil port A of the first solenoid reversing valve 55, and the external leakage port is connected to the oil tank 30. In other words, the working oil port A of the first solenoid reversing valve 55 and the rod chamber 22 are indirectly connected.

[0106] The working port A and the oil return port of the second electromagnetic reversing valve 52 are both connected to the oil tank 30 , and the working port B of the second electromagnetic reversing valve 52 is connected to the control port of the first external leakage type hydraulically controlled one-way valve 70 .

[0107] The oil outlet of the first external leakage type hydraulically controlled one-way valve 70 is connected to the oil inlet of the second external leakage type hydraulically controlled one-way valve 80 , and the leakage port of the first external leakage type hydraulically controlled one-way valve 70 is connected to the oil inlet of the third electromagnetic reversing valve 61 .

[0108] The oil outlet of the second external leakage type hydraulically controlled one-way valve 80 is connected to the rodless chamber 21 , the external leakage port of the second external leakage type hydraulically controlled one-way valve 80 is connected to the oil inlet of the third electromagnetic reversing valve 61 , and the control port of the second external leakage type hydraulically controlled one-way valve 80 is connected to the rod chamber 22 .

[0109] The oil discharge port of the third electromagnetic reversing valve 61 is connected to the oil tank 30 , and the oil outlet of the third electromagnetic reversing valve 61 is connected to the hydraulic motor 62 . The output shaft of the hydraulic motor 62 is transmission-connected to a generator 63 , and the output end of the generator 63 is electrically connected to a battery 64 .

[0110] By connecting the leakage port of the first external leakage type hydraulically controlled one-way valve 70 and the oil inlet of the third electromagnetic reversing valve 61, and connecting the leakage port of the second external leakage type hydraulically controlled one-way valve 80 and the oil inlet of the third electromagnetic reversing valve 61, and connecting the oil outlet of the third electromagnetic reversing valve 61 to the hydraulic motor 62, the oil flowing out from between the first external leakage type hydraulically controlled one-way valve 70 and the second external leakage type hydraulically controlled one-way valve 80 and the rodless chamber 21 can be effectively utilized to generate electricity and store it in the battery 64, thereby realizing energy recovery. The electric energy stored in the battery 64 can also be reused, and the energy loss is relatively small.

[0111] The oil outlet of the hydraulic motor 62 can be directly connected to the oil tank 20. In order to make better use of energy, preferably, the oil outlet of the hydraulic motor 62 is connected to the second one-way valve 65, and the oil outlet of the second one-way valve 65 is connected to the oil outlet of the first one-way valve 51.

[0112] During use, the piston rod of the hydraulic cylinder 200 extends, pushing the connecting frame 313 away from the first seat 110. Under the joint action of the guide mechanism 320, the first rod group 311 and the second rod group 312, the horizontal movement of the connecting frame 313 drives the lifting platform 340 to move upward; conversely, the piston rod of the hydraulic cylinder 200 retracts, and the connecting frame 313 drives the lifting platform 340 to move downward.

[0113] To drive the lifting platform 340 to rise, the second electromagnetic reversing valve 52 is in the lower position, the first electromagnetic reversing valve 55 is in the lower position, and the third electromagnetic reversing valve 61 is in the right position. The hydraulic oil flowing out of the oil tank 30 flows through the oil supply pump 50 and the first one-way valve 51. After passing through the first one-way valve 51, it is divided into two paths. One path flows through the second electromagnetic reversing valve 52 and finally reaches the control port of the first external leakage hydraulic control one-way valve 70. At this time, the leakage port of the first external leakage hydraulic control one-way valve 70 is opened. , the other path flows through the throttle valve 54 and the first solenoid reversing valve 55; after passing through the first solenoid reversing valve 55, it is divided into two paths, one of which flows to the control port of the third external leakage type hydraulic control one-way valve 90. At this time, the third external leakage type hydraulic control one-way valve 90 is opened, and the other path flows through the first external leakage type hydraulic control one-way valve 70, the second external leakage type hydraulic control one-way valve 80 and the rodless chamber 21; at the same time, the hydraulic oil in the rod chamber 22 is squeezed out and flows through the leakage port of the third external leakage type hydraulic control one-way valve 90, and finally returns to the oil tank 30.

[0114] When the lifting platform 340 rises to its position and needs to stop to maintain pressure, the first electromagnetic reversing valve 55 turns to the middle position, the oil inlet of the second external leakage type hydraulic control one-way valve 80 is closed, and the second electromagnetic reversing valve 52 turns to the upper position. At the same time, the control port of the first external leakage type hydraulic control one-way valve 70 is unloaded and closed, and the oil inlet of the first external leakage type hydraulic control one-way valve 70 is also closed. At this time, there is no oil pressure between the first external leakage type hydraulic control one-way valve 70 and the second external leakage type hydraulic control one-way valve 80, thereby avoiding back pressure. The first external leakage type hydraulic control one-way valve 70 and the second leakage type hydraulic control one-way valve 80 connected in series work at the same time, ensuring that the double lock is leak-free, eliminating the sinking phenomenon of the lifting platform 340 when docked, which is conducive to ensuring that the lifting platform 340 does not sink and the lifting platform 340 is relatively stable.

[0115] When the driving lifting platform 340 is to be lowered, the first solenoid reversing valve 55 is turned to the upper position, and the flow path of the hydraulic oil flowing out of the oil tank 30 is: oil supply pump 50, first one-way valve 51, throttle valve 54, first solenoid reversing valve 55, third external leakage type hydraulic control one-way valve 90 and rod chamber 22; at the same time, the hydraulic oil in the rodless chamber 21 is squeezed out, and its flow path is: second external leakage type hydraulic control one-way valve 80, third solenoid reversing valve 61, hydraulic motor 62 and second one-way valve 65, and then merges with the hydraulic oil flowing out of the first one-way valve 51, and finally flows into the rod chamber 22.

[0116] Example 2

[0117] This embodiment provides a spindle box assembly auxiliary device. The difference between this embodiment and the first embodiment is that: the first rod group 311 has two upper connecting rods 311a, the first rod group 311 has two lower connecting rods 311b, the second rod group 312 has two upper connecting rods 311a, and the second rod group 312 has two lower connecting rods 311b; the connection structure between the upper connecting rod 311a and the connecting frame 313 is different, and the connection structure between the lower connecting rod 311b and the connecting frame 313 is different.

[0118] refer to Figure 6 The connection structure between the upper connecting rod 311a and the connecting frame 313 is as follows: in the first rod group 311, the two upper connecting rods 311a are arranged in parallel, and the first shaft 313a is fixed with an intermediate component 313d. One of the upper connecting rods 311a and the intermediate component 313d is respectively provided with a corresponding eleventh rotation hole, and the corresponding eleventh rotation hole is connected to the same eleventh rotation rod, and the other upper connecting rod 311a and the intermediate component 313d are respectively provided with a corresponding twelfth rotation hole, and the corresponding twelfth rotation hole is connected to the same twelfth rotation rod, and the eleventh rotation rod and the twelfth rotation rod are both arranged parallel to the first shaft 313a.

[0119] In the second rod group 312, two upper connecting rods 311a are arranged in parallel, and the second shaft 313b is fixed with an intermediate component 313d. One upper connecting rod 311a and the intermediate component 313d are respectively provided with mutually corresponding thirteenth rotation holes, and the same thirteenth rotation rod is connected to the corresponding thirteenth rotation holes. The other upper connecting rod 311a and the intermediate component 313d are respectively provided with mutually corresponding fourteenth rotation holes, and the same fourteenth rotation rod is connected to the corresponding fourteenth rotation holes. The thirteenth rotation rod and the fourteenth rotation rod are both arranged parallel to the second shaft 313b.

[0120] refer to Figure 6The connection structure between the lower connecting rod 311a and the connecting frame 313 is as follows: in the first rod group 311, the two lower connecting rods 311b are arranged in parallel, one lower connecting rod 311b and the intermediate member 313d are respectively provided with corresponding fifteenth rotation holes, and the same fifteenth rotation rod is connected to the corresponding fifteenth rotation holes, and the other lower connecting rod 311b and the intermediate member 313d are respectively provided with corresponding sixteenth rotation holes, and the same sixteenth rotation rod is connected to the corresponding sixteenth rotation holes, and the fifteenth rotation rod and the sixteenth rotation rod are both arranged parallel to the first axis 313a. In the second rod group 312, two lower connecting rods 311b are arranged in parallel, and one lower connecting rod 311b and the intermediate member 313d are respectively provided with mutually corresponding seventeenth rotation holes, and the same seventeenth rotation rod is connected to the corresponding seventeenth rotation holes, and the other lower connecting rod 311b and the intermediate member 313d are respectively provided with mutually corresponding eighteenth rotation holes, and the same eighteenth rotation rod is connected to the corresponding eighteenth rotation holes. The seventeenth rotation rod and the eighteenth rotation rod are both arranged parallel to the second axis 313b.

[0121] The eleventh rotating rod, the twelfth rotating rod, the thirteenth rotating rod and the fourteenth rotating rod are all located on the upper side of the connecting frame 313, the fifteenth rotating rod, the sixteenth rotating rod, the seventeenth rotating rod and the eighteenth rotating rod are all located on the lower side of the connecting frame 313, and the eleventh rotating rod, the twelfth rotating rod, the thirteenth rotating rod, the fourteenth rotating rod, the fifteenth rotating rod, the sixteenth rotating rod, the seventeenth rotating rod and the eighteenth rotating rod are at the same distance from the plane where the connecting frame 313 is located.

[0122] The present invention has been described in detail above with reference to the accompanying drawings, but the embodiments of the present invention are not limited to the above embodiments. Those skilled in the art can make various modifications to the present invention based on the existing technology, and all of these modifications fall within the scope of protection of the present invention.

Claims

1. A spindle box assembly auxiliary device, characterized by: The auxiliary equipment comprises a base on which a force-applying oil cylinder is installed, a lifting device having a lifting platform, and a hydraulic cylinder installed on the base and used to drive the lifting platform to move up and down, wherein the hydraulic cylinder has a rodless chamber and a rod chamber, and the auxiliary equipment further comprises a hydraulic system, wherein the hydraulic system comprises an oil supply pump, an oil tank, a first electromagnetic reversing valve, a second electromagnetic reversing valve, a first external leakage hydraulically controlled one-way valve, a second external leakage hydraulically controlled one-way valve, and a third electromagnetic reversing valve; The oil inlet of the oil supply pump is connected to the oil tank, and the oil outlet of the oil supply pump is connected to the oil inlet of the first electromagnetic reversing valve and the oil inlet of the second electromagnetic reversing valve at the same time; The working oil port B of the first electromagnetic reversing valve is connected to the oil inlet of the first external leakage hydraulically controlled one-way valve, the working oil port A of the first electromagnetic reversing valve is connected to the rod chamber, and the oil return port of the first electromagnetic reversing valve is connected to the oil tank; The working port A and the oil return port of the second electromagnetic reversing valve are both connected to the oil tank, the working port B of the second electromagnetic reversing valve is connected to the control port of the first external leakage type hydraulically controlled one-way valve, and the control port of the second electromagnetic reversing valve is connected to the rod chamber; The oil outlet of the first external leakage type hydraulically controlled one-way valve is connected to the oil inlet of the second external leakage type hydraulically controlled one-way valve, and the leakage port of the first external leakage type hydraulically controlled one-way valve is connected to the oil inlet of the third electromagnetic reversing valve; The oil outlet of the second external leakage type hydraulically controlled one-way valve is connected to the rodless chamber, and the external leakage port of the second external leakage type hydraulically controlled one-way valve is connected to the oil inlet of the third electromagnetic reversing valve; The oil discharge port of the third electromagnetic reversing valve is connected to the oil tank, the oil outlet is connected to a hydraulic motor, the output shaft of the hydraulic motor is transmission-connected to a generator, and the output end of the generator is electrically connected to a battery.

2. The spindle box assembly auxiliary device according to claim 1, characterized in that: The working oil port A of the first solenoid reversing valve is connected to the third external leakage type hydraulically controlled one-way valve, the oil outlet of the third external leakage type hydraulically controlled one-way valve is connected to the rod chamber, the control port of the first solenoid reversing valve is connected to the working oil port A of the first solenoid reversing valve, and the external leakage port of the first solenoid reversing valve is connected to the oil tank.

3. The spindle box assembly auxiliary device according to claim 2, characterized in that: It also includes a first one-way valve and a throttle valve, the oil inlet of the first one-way valve is connected to the oil outlet of the oil supply pump, the oil outlet of the first one-way valve is simultaneously connected to the oil inlet of the second electromagnetic reversing valve and the oil inlet of the throttle valve, and the oil outlet of the throttle valve is connected to the oil inlet of the first electromagnetic reversing valve.

4. The spindle box assembly auxiliary device according to claim 3, characterized in that: The oil outlet of the hydraulic motor is connected to a second one-way valve, and the oil outlet of the second one-way valve is connected to the oil outlet of the first one-way valve; the oil outlet of the oil supply pump is also connected to a pressure gauge and an electromagnetic overflow valve, and the oil outlet of the electromagnetic overflow valve is connected to the oil tank.

5. A spindle box assembly auxiliary device according to any one of claims 1 to 4, characterized in that: The lifting device includes a connecting mechanism, a vertically arranged guide mechanism and a horizontally arranged support frame; the lifting platform is arranged horizontally and located above the support frame, and the connecting mechanism is located between the support frame and the lifting platform; the lower end of the guide mechanism is installed on the support frame, and the upper end is installed on the lifting platform; The connecting mechanism includes a first rod group, a second rod group and a horizontally arranged connecting frame; The first rod group includes an upper connecting rod and a lower connecting rod arranged corresponding to the upper connecting rod, the upper connecting rod and the lower connecting rod having the same length; the upper connecting rod and the lower connecting rod corresponding to each other are symmetrically arranged with the connecting frame as the center; the second rod group has the same structure and size as the first rod group and is arranged in parallel; One end of each upper connecting rod is rotatably connected to the connecting frame, and the other end is rotatably connected to the lifting platform; one end of each lower connecting rod is rotatably connected to the connecting frame, and the other end is rotatably connected to the supporting frame; The rotation planes of the upper connecting rods and the lower connecting rods are arranged vertically and are arranged parallel to each other; The projections of the upper connecting rod of the second connecting rod group and the upper connecting rod of the first connecting rod group on any rotation plane of the upper connecting rod are staggered; The projections of the lower connecting rod of the second connecting rod group and the lower connecting rod of the first connecting rod group on any rotation plane of the lower connecting rod are staggered; The piston rod of the hydraulic cylinder is arranged parallel to the rotation plane of any one of the upper connecting rods or any one of the lower connecting rods. The piston rod of the hydraulic cylinder is rotatably connected to the connecting frame, and the cylinder body is rotatably connected to the base.

6. The spindle box assembly auxiliary device according to claim 5, characterized in that: The connecting frame includes a force transmission rod, a first shaft and a second shaft; the first shaft and the second shaft are arranged in parallel; the upper connecting rod and the lower connecting rod of the first rod group are both rotatably connected to the first shaft; the upper connecting rod and the lower connecting rod of the second rod group are both rotatably connected to the second shaft; one end of the force transmission rod is connected to the first shaft through a connecting rod sleeve, and the other end is connected to the second shaft through a connecting rod sleeve; the piston rod of the hydraulic cylinder is arranged perpendicular to the first shaft, and the piston rod of the hydraulic cylinder is rotatably connected to the first shaft.

7. The spindle box assembly auxiliary device according to claim 6, characterized in that: The first shaft and the second shaft are both mounted with an intermediate member; In the first rod group, there are two upper connecting rods and two lower connecting rods, the two upper connecting rods are of the same length and arranged in parallel, the two upper connecting rods correspond to the two lower connecting rods one-to-one, and the two upper connecting rods and the two lower connecting rods are both rotatably connected to the intermediate member of the first shaft; In the second rod assembly, the two upper links and the two lower links are both rotatably connected to the intermediate member of the second shaft.

8. The spindle box assembly auxiliary device according to claim 6, characterized in that: The upper connecting rod and the lower connecting rod of the first rod group are both rotatably connected to the first shaft through needle bearings; the upper connecting rod and the lower connecting rod of the second rod group are both rotatably connected to the second shaft through needle bearings.

9. The spindle box assembly auxiliary device according to claim 5, characterized in that: The base includes a first seat, a second seat and two connecting boxes arranged parallel to each other, and the first seat and the second seat are arranged opposite to each other; one end of the two connecting boxes is fixed to the first seat, and the other end is fixed to the second seat; the first seat, the second seat and the two connecting boxes together form a first area, the lifting device and the hydraulic cylinder are located in the first area, and the cylinder body of the hydraulic cylinder is rotatably connected to the first seat.

10. The spindle box assembly auxiliary device according to claim 9, characterized in that: The first seat includes a vertically arranged first end plate, the second seat includes a vertically arranged second end plate, one end of the two connecting boxes is fixed to the first end plate, and the other end is fixed to the second end plate; One side of the first end plate is close to the lifting device, and the other side is fixed with a plurality of vertically arranged first stiffening plates, each of the first stiffening plates is linearly spaced apart, and a plurality of linearly spaced first transverse partitions are connected between two adjacent first stiffening plates; One side of the second end plate is close to the lifting device, and the other side is fixed with a plurality of vertically arranged second stiffening plates, each of the second stiffening plates is linearly spaced, and a plurality of linearly spaced second transverse partitions are connected between adjacent second stiffening plates; The cylinder body of the hydraulic cylinder is rotatably connected to the first end plate.

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