A new lifting platform device based on a one-to-four synchronous transmission mechanism

Abstract

The present invention relates to the technical field of vehicle-mounted radar lifting devices controlled by mechatronics, and specifically discloses a new type of lifting platform device based on a one-to-four synchronous transmission mechanism, including a lifting mechanism, a platform mechanism provided on the upper side of the lifting mechanism, an oiling mechanism provided on the side of the lifting mechanism, a compensation mechanism provided on the side of the lifting mechanism corresponding to the lower side of the oiling mechanism, a clamping mechanism provided inside the lifting mechanism corresponding to the position between the oiling mechanism and the compensation mechanism, and a second motor provided on the upper side of the oiling mechanism. In the present invention, oiling and lubrication can be performed regularly; when the platform stops, the fourth gear is driven to engage with the third gear, so that the matching plate rotates to constrain the constraint rod to drive the slider to drive the mounting block closer, and the clamping block is clamped on the side of the trapezoidal lead screw to strengthen the support of the lead screw nut block, thereby reducing the squeezing force of the lead screw nut block on the trapezoidal lead screw when it stops and slowing down wear.

Description

Technical Field

[0001] The present invention relates to the technical field of a vehicle-mounted radar lifting device controlled by mechatronics, and in particular to a novel lifting platform device based on a one-to-four synchronous transmission mechanism. Background Art

[0002] The screw lift is composed of worm gears, housings, bearings, lead screws, nuts and other components. The working principle is as follows: the motor or manual drive rotates the worm, which drives the worm gear to reduce its speed. The inner cavity of the worm gear is processed into an internal thread to drive the lead screw up and down. Due to the worm gear inside, the lead screw has a deceleration effect, which amplifies the thrust. On this basis, the existing device disperses the transmission force through a reducer and a commutator, and sets four sets of worm gears, which are connected by connecting rods and couplings. Driven by a set of driving motors, the worm gear drives the lead screw to rotate, and the trapezoidal nut engages with the lead screw thread. A platform is provided at the end of the trapezoidal nut, thereby converting the rotational motion of the lead screw into linear motion to drive the platform to move up and down. Such a lifting device is used to lift and lower the vehicle-mounted radar. The inventor has observed that this type of lifting platform device still has the following problems:

[0003] 1. The platform is equipped with a radar. Since the radar is equipped with various precision parts with different specifications, a relatively large acceleration is required to start and brake the elevator. The radar generates the same acceleration as the elevator, but due to inertia, the balance of various parts will be broken, which may easily cause damage to the precision parts in the long run.

[0004] 2. The platform's lifting force is primarily generated by the meshing of the lead screw and nut. When the platform is stopped, the lead screw and nut engage and bear the force, which makes the lead screw susceptible to wear when parked for a long time. Furthermore, the lead screw and nut also wear out over time during meshing. As the platform rises and falls, the four sets of lead screws wear differently, resulting in different lifting speeds. This makes it impossible for the platform to maintain a horizontal position for imaging radar use.

[0005] 3. The worm gears are linked by connecting rods and couplings. During use, the couplings may be damaged and fail due to various reasons. At this time, when the platform is raised or lowered, one or more sets of lead screws lose power, while the other lead screws continue to move, causing damage to the platform. For this reason, we propose a new lifting platform device based on a one-point four-way synchronous transmission mechanism. Summary of the Invention

[0006] The present invention mainly solves the technical problems existing in the above-mentioned prior art and provides a new lifting platform device based on a one-to-four synchronous transmission mechanism.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a novel lifting platform device based on a one-to-four synchronous transmission mechanism includes a lifting mechanism, a platform mechanism is provided on the upper side of the lifting mechanism, an oil injection mechanism is provided on the side of the lifting mechanism, a compensation mechanism is provided on the side of the lifting mechanism at a position corresponding to the lower side of the oil injection mechanism, a clamping mechanism is provided inside the lifting mechanism at a position corresponding to the position between the oil injection mechanism and the compensation mechanism, a second motor is provided on the upper side of the oil injection mechanism, and a limit mechanism is provided on the side of the lifting mechanism at a position corresponding to the position of the compensation mechanism and the clamping mechanism;

[0008] The platform mechanism includes a platform plate, a push-pull electric cylinder module is provided on the lower side of the platform plate, and a retractable sleeve rod is provided on the side of the platform plate;

[0009] The oil filling mechanism includes an oil filling pump, an oil storage box is provided on the side of the oil filling pump, a movable oil filling block is provided on the side of the oil filling pump, a matching block is provided on the side of the oil filling block, and a detectable detection block is provided on the side of the matching block;

[0010] The compensation mechanism includes a first gear, a second gear is provided on the side of the first gear, and a mounting rod is provided on the upper side of the first gear;

[0011] The clamping mechanism includes a third gear, a fourth gear is provided on the side of the third gear, a rotatable matching plate is provided on the lower side of the third gear, and a movable mounting block is provided on the lower side of the matching plate;

[0012] The limiting mechanism includes a rotating rod, a first limiting block and a second limiting block are arranged on the side of the rotating rod, and a first electric push rod that can be pushed and pulled is arranged on the other side of the rotating rod.

[0013] Preferably, the lifting mechanism includes a first motor, a reducer is fixedly mounted on the side of the first motor, a commutator is mirrored on both sides of the reducer, a mounting frame is arranged on the side of the commutator, a turbine module is symmetrically arranged on the upper side of the mounting frame, a first transmission rod is arranged between the reducer and the commutator, a second transmission rod is arranged between the turbine modules, a trapezoidal lead screw is arranged inside the turbine module, a lead screw nut block is threadedly sleeved on the side of the trapezoidal lead screw, and a fixed plate is movably sleeved on the side of the lead screw nut block.

[0014] Preferably, the platform mechanism includes a platform plate arranged on the upper side of the fixed plate, a base frame is arranged on the lower side of the platform plate, fixed blocks are equidistantly fixedly installed on the upper side of the base frame, the electric cylinder module is equidistantly fixedly installed on the upper side of the platform plate, a connecting plate is fixedly installed on the upper side of the electric cylinder module, connecting blocks are symmetrically fixedly installed on the lower side of the platform plate, sleeves are equidistantly arranged on the lower side of the connecting block, the sleeve rod is movably installed in a mirror image inside the sleeve, and a first spring is fixedly connected between the side surface of the sleeve rod and the inner wall of the sleeve.

[0015] Preferably, the oil filling mechanism includes an oil filling pump fixedly mounted on the side of the fixed plate, an oil storage box fixedly mounted on the side of the fixed plate, a first connecting pipe fixedly connected between the oil filling pump and the oil storage box, an oil storage tank is opened inside the screw nut block, and a second connecting pipe is fixedly connected to the side of the oil filling pump.

[0016] Preferably, the oil filling mechanism also includes an oil filling cavity opened on the inner wall of the oil storage tank, the oil filling block is movably installed inside the oil filling cavity, a second spring is fixedly connected between the side of the oil filling block and the inner wall of the oil filling cavity, oil filling grooves are equidistantly opened on the side of the oil filling block, the matching block is fixedly installed on the side of the oil filling block, and the detection block is fixedly installed on the inner wall of the oil storage tank.

[0017] Preferably, the compensation mechanism includes a first gear arranged on the lower side of the fixed plate, the second gear is meshed with the side of the first gear, a mounting groove is opened on the lower side of the fixed plate, the mounting rod is movably installed inside the mounting groove, a constraint groove is opened on the inner side of the fixed plate, and a constraint block is movably installed inside the constraint groove.

[0018] Preferably, the clamping mechanism includes a slot opened on the side of the screw nut block, the third gear is movably installed inside the slot, the fourth gear is engaged with the side of the third gear, a matching cavity is opened inside the screw nut block, a sliding groove is symmetrically opened on the bottom wall of the matching cavity, a slider is movably installed inside the sliding groove, a matching plate is movably installed inside the matching cavity, a constraint rod is movably installed inside the matching plate, a connecting groove is symmetrically opened on the bottom wall of the slot, a connecting rod is movably installed inside the connecting groove, and the mounting block is fixedly installed on the lower side of the slider.

[0019] Preferably, the clamping mechanism also includes a movable groove opened on the side of the mounting block, a movable block is movably installed inside the movable groove, a clamping block is fixedly installed on the side of the movable block, a guide rod is fixedly installed inside the movable groove, and a support tube is fixedly connected between the side of the movable block and the inner wall of the movable groove.

[0020] Preferably, the second motor is fixedly mounted on the upper side of the oil injection pump and the second motor drive shaft is arranged through the fourth gear and the inner position of the mounting rod, and a decoupling module is provided on the side of the second motor corresponding to the position of the fourth gear and the mounting rod;

[0021] The decoupling module includes a driving groove opened on the side of the second motor drive shaft, a second electric push rod is arranged on the inner side of the mounting rod and the fourth gear, a driving block is fixedly installed on the side of the second electric push rod, a buffer block is arranged on the side of the driving block, and a third spring is symmetrically fixedly connected between the buffer block and the side of the driving block.

[0022] Preferably, the limiting mechanism includes a limiting groove opened inside the fixed plate, the rotating rod is arranged inside the limiting groove, the first limiting block and the second limiting block are movably installed inside the limiting groove, and linkage rods are respectively arranged between the rotating rod and the first limiting block and the second limiting block. The first electric push rod is fixedly installed on the inner wall of the limiting groove, a guide groove is opened on the side of the rotating rod, and a guide block is movably installed inside the guide groove.

[0023] Beneficial effects

[0024] The present invention provides a novel lifting platform device based on a one-to-four synchronous transmission mechanism, which has the following features:

[0025] Beneficial effects:

[0026] (1) The novel lifting platform device based on the one-to-four synchronous transmission mechanism is provided with an oiling mechanism, a platform mechanism, a compensation mechanism and a clamping mechanism. In normal use, the oiling block contacts the thread groove of the trapezoidal screw rod, causing the matching block to contact the detection block for counting. The lifting speed of the fixed plate is obtained by the counting frequency. The electric cylinder module is controlled to push and pull in the opposite direction according to the obtained speed. By offsetting the acceleration inertia of the platform plate, the radar carried by the platform is not affected by the acceleration and braking inertia, reducing the probability of damage to precision parts. When the oiling pump is running, the lubricating oil is pumped to the oiling block position for lubrication. The flow meter inside the second connecting pipe detects the lubricating oil flow and plays an auxiliary verification role in the detection speed of the matching block. In this way, oiling and lubrication can be performed regularly. When the platform stops, the fourth gear is driven and meshed with the third gear, causing the matching plate to rotate and constrain the constraint rod to drive the slider to drive the installation block closer. The clamping block is clamped on the side of the trapezoidal screw to strengthen the support of the screw nut block, reduce the squeezing force of the screw nut block on the trapezoidal screw when it stops, and slow down wear.

[0027] (2) The new lifting platform device based on the one-point four synchronous transmission mechanism is provided with an oiling mechanism, a compensation mechanism and a clamping mechanism. When the fixed plate is not raised and lowered synchronously, the speed is detected by the oiling mechanism. At this time, the first gear of the compensation mechanism is driven to engage with the second gear to drive the screw nut block. The constraint block rotates inside the constraint groove and is constrained to rotate and engage with the trapezoidal screw to adjust the speed. The lifting speed of the fixed plate is adjusted to keep it consistent. After a certain period of adjustment intervention, the speed still cannot be kept normal. At this time, the clamping mechanism is driven so that the clamping block clamps the side of the trapezoidal screw to brake, and other power stops being output. In this way, the platform can always be kept horizontal when it is raised and lowered, and the braking operation is performed when the horizontal interference is invalid.

[0028] When the trapezoidal lead screw is not driven and the fixed plate loses power, the turbine module tachometer detects that the trapezoidal lead screw does not rotate when driven by the first motor and the oil injection mechanism does not receive a signal. At this time, the compensation mechanism is driven alone, causing the lead screw nut block to engage with the trapezoidal lead screw and move itself. At the same time, the oil injection mechanism continues to lubricate the side of the trapezoidal lead screw with oil, which can ensure that the platform plate can still perform normal lifting and lowering movements, avoiding damage to the platform itself.

[0029] (3) The new lifting platform device based on the one-to-four synchronous transmission mechanism, through the limit mechanism, the second motor and the decoupling module, the first electric push rod pushes and pulls the constraint rod to rotate accordingly, so that the first limit block and the second limit block switch to limit the fourth gear and the constraint block, and the limit switching is carried out in accordance with the above-mentioned usage; by the second electric push rod pushing and pulling the drive block in and out of the internal position of the drive slot, the second motor can drive the compensation mechanism and the clamping mechanism to switch, and in accordance with the above-mentioned usage, the second motor drives different parts to move, and realizes the operation of a drive motor with multiple directional drive paths. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0031] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a partial structural schematic diagram of the lifting mechanism of the present invention;

[0034] Figure 3 It is a schematic diagram of the partial structure of the fixing plate of the present invention;

[0035] Figure 4 It is a schematic diagram of the partial structure of the platform mechanism of the present invention;

[0036] Figure 5 It is a partial structural schematic diagram of the sleeve rod of the present invention;

[0037] Figure 6 Schematic diagram of the partial structure of the turbine module of the present invention;

[0038] Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure at point A;

[0039] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure at point B;

[0040] Figure 9 is a schematic diagram of the partial structure of the third gear of the present invention;

[0041] Figure 10 For the present invention Figure 6 Schematic diagram of the enlarged structure at C;

[0042] Figure 11 For the present invention Figure 10 A schematic diagram of the enlarged structure at D;

[0043] Figure 12 It is a schematic diagram of a partial exploded structure of the clamping mechanism of the present invention;

[0044] Figure 13 This is a schematic diagram of a partial explosion structure of the oil injection mechanism of the present invention;

[0045] Figure 14 This is a schematic diagram of the partial structure of the decoupling module of the present invention;

[0046] Figure 15 It is a schematic diagram of the partial structure of the limiting mechanism of the present invention.

[0047] Legend:

[0048] 1. Lifting mechanism; 11. First motor; 12. Reducer; 13. Commutator; 14. Mounting frame; 15. Turbine module; 16. First transmission rod; 161. Second transmission rod; 17. Trapezoidal screw; 18. Screw nut block; 19. Fixing plate; 2. Platform mechanism; 21. Platform plate; 22. Base frame; 23. Fixing block; 24. Electric cylinder module; 25. Connecting plate; 26. Connecting block; 27. Sleeve; 28. Sleeve rod; 29. ​​First spring; 3. Oil filling mechanism; 31. Oil filling pump; 32. Oil storage box; 33. First connecting pipe; 34. Oil storage tank; 35. Second connecting pipe; 36. Oil filling chamber; 361. Oil filling block; 362. Second spring; 363. Oil filling tank; 37. Matching block; 38. Detection block; 4. Compensation mechanism; 41. First gear; 42. Second gear; 4 3. Mounting slot; 44. Mounting rod; 45. Constraint slot; 46. Constraint block; 5. Clamping mechanism; 51. Slot; 52. Third gear; 521. Connecting slot; 522. Connecting rod; 53. Fourth gear; 54. Matching cavity; 55. Slide groove; 56. Matching plate; 57. Slider; 58. Constraint rod; 59. Mounting block; 591. Movable slot; 592. Movable block; 593. Guide rod; 594. Support cylinder; 595. Clamping block; 6. Second motor; 7. Limiting mechanism; 71. Limiting slot; 72. First limiting block; 73. Second limiting block; 74. First electric push rod; 75. Rotating rod; 76. Linkage rod; 77. Guide slot; 78. Guide block; 8. De-shafting module; 81. Driving slot; 82. Second electric push rod; 83. Driving block; 84. Buffer block; 85. Third spring. DETAILED DESCRIPTION

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0050] Example: A new lifting platform device based on a one-point four-point synchronous transmission mechanism, such as Figure 1 - Figure 3As shown, it includes a lifting mechanism 1, which can perform one-point-four synchronous lifting movements. A platform mechanism 2 is provided on the upper side of the lifting mechanism 1. The platform mechanism 2 is a loading platform that can be lifted and lowered by itself. An oil injection mechanism 3 is provided on the side of the lifting mechanism 1. The oil injection mechanism 3 can inject oil and measure the speed of the lifting mechanism 1. A compensation mechanism 4 is provided on the side of the lifting mechanism 1 corresponding to the lower side of the oil injection mechanism 3. The compensation mechanism 4 can enable the lifting mechanism 1 to perform single-group drive. A clamping mechanism 5 is provided at a position corresponding to the oil injection mechanism 3 and the compensation mechanism 4 inside the lifting mechanism 1. The clamping mechanism 5 can serve as a braking support for the lifting mechanism 1. A second motor 6 is provided on the upper side of the oil injection mechanism 3. The second motor 6 drives the oil injection mechanism 3, the compensation mechanism 4 and the clamping mechanism 5. A limiting mechanism 7 is provided on the side of the lifting mechanism 1 corresponding to the compensation mechanism 4 and the clamping mechanism 5. The limiting mechanism 7 has a limiting and fixing effect on the compensation mechanism 4 and the clamping mechanism 5;

[0051] Furthermore, the lifting mechanism 1 includes a first motor 11, and a reducer 12 is fixedly installed on the side of the first motor 11. The reducer 12 is a one-to-two type reducer 12, which can convert the transmission force of the first motor 11 into output at both ends. A commutator 13 is mirror-set on both sides of the reducer 12. The commutator 13 is a prior art and will not be described in detail here. A mounting frame 14 is provided on the side of the commutator 13. The mounting frame 14 is a "U"-shaped frame built of multiple groups of rectangular plates. A turbine module 15 is symmetrically provided on the upper side of the mounting frame 14. The turbine module 15 is a rectangular body with a tachometer and a turbine inside and a rotating shaft fixedly installed at both ends of the turbine. The tester of the turbine module 15 can detect and measure the speed of the trapezoidal lead screw 17. A first transmission rod 16 is provided between the reducer 12 and the commutator 13, and a second transmission rod 161 is provided between the turbine module 15. The first transmission rod 16 and the second transmission rod 161 are circular rods, and the reducer 12, the first transmission rod 16, and the commutator The commutator 13, the turbine module 15 and the second transmission rod 161 are fixedly connected together by a coupling. The first transmission rod 16 is driven by the reducer 12 to rotate through the commutator 13 to rotate the turbine inside the turbine module 15. The second transmission rod 161 synchronously rotates the turbine inside the turbine module 15 in the correct position, so that the four groups of turbine modules 15 are driven synchronously. A trapezoidal screw 17 is provided inside the turbine module 15 and the trapezoidal screw 17 is engaged with the turbine inside the turbine module 15. The trapezoidal screw 17 is a round rod with two groups of thread grooves on the side. The engagement of the turbine module 15 with the trapezoidal screw 17 can drive the trapezoidal screw 17 to rotate inside the turbine module 15. A screw nut block 18 is threadedly sleeved on the side of the trapezoidal screw 17. The screw nut block 18 is a trapezoidal circular ring block with a section of thread on the inside. A fixed plate 19 is movably sleeved on the side of the screw nut block 18. The fixed plate 19 is a "Z"-shaped plate with a circular groove on the side.

[0052] Further, such as Figure 4 and Figure 5 As shown, the platform mechanism 2 includes a platform plate 21 arranged on the upper side of the fixed plate 19, the platform plate 21 is a rectangular plate, and a base frame 22 is arranged on the lower side of the platform plate 21, and the base frame 22 is a U-shaped frame. Fixed blocks 23 are equidistantly fixedly installed on the upper side of the base frame 22, and the fixed plate 19 is fixedly sleeved on the side position of the fixed block 23. The fixed block 23 is supported on the lower side of the platform plate 21. The fixed block 23 is a cylindrical block with a cross-shaped cross-section. The fixed plate 19 can drive the base frame 22 to move. Electric cylinder modules 24 are equidistantly fixedly installed on the upper side of the platform plate 21. The electric cylinder module 24 is composed of multiple groups of electric cylinders. The electric cylinder module 24 can push and pull the platform plate 21 for lifting and lowering movements. A connecting plate 25 is fixedly installed on the upper side of the electric cylinder module 24, and the connecting plate 25 is fixedly installed on the platform plate 21 At the lower side, the connecting plate 25 is a rectangular plate. A connecting block 26 is symmetrically fixedly installed on the lower side of the platform plate 21 corresponding to the side position of the base frame 22. The connecting block 26 is a rectangular block. A sleeve 27 is equidistantly arranged on the lower side of the connecting block 26. The sleeve 27 is a cylinder with convex cylindrical grooves on both sides. A sleeve rod 28 is movably installed inside the sleeve 27 in a mirror-image manner, and the sleeve rod 28 is rotatably connected to the connecting block 26 and the side position of the base frame 22 respectively. The sleeve rod 28 is a "T"-shaped round rod. The sleeve rod 28 can slide inside the sleeve 27. A first spring 29 is fixedly connected between the side of the sleeve rod 28 and the inner wall of the sleeve 27, and the first spring 29 is movably sleeved on the side position of the sleeve rod 28. The first spring 29 is a prior art and will not be described in detail here. The first spring 29 provides elastic support for the first spring 29.

[0053] Further, such as Figure 6-Figure 8As shown, the oil filling mechanism 3 includes an oil filling pump 31 fixedly mounted on the side of the fixed plate 19. The oil filling pump 31 is a circular pump with an impeller provided inside and circular grooves opened on both sides. An oil storage box 32 is fixedly mounted on the side of the fixed plate 19 at the position corresponding to the oil filling pump 31. The oil storage box 32 is a rectangular box. A first connecting pipe 33 is fixedly connected between the oil filling pump 31 and the oil storage box 32. The first connecting pipe 33 is a circular pipe. An oil storage groove 34 is opened inside the screw nut block 18. The oil storage groove 34 is a circular groove. There is a second connecting pipe 35 and the second connecting pipe 35 passes through the screw nut block 18 to the internal position of the oil storage tank 34. The second connecting pipe 35 is a circular pipe with a flow meter inside. The lubricating oil inside the oil storage box 32 is pumped by the oil injection pump 31 through the first connecting pipe 33 and the second connecting pipe 35 to the inside of the oil storage tank 34. The flow meter inside the second connecting pipe 35 monitors the flow rate. An oil injection cavity 36 that passes through the screw nut block 18 is opened on the inner wall of the oil storage tank 34 at the position corresponding to the thread groove of the trapezoidal screw 17. The oil injection cavity 36 has a cross-section of The cross-shaped cylindrical groove has an oil filling block 361 movably installed inside the oil filling chamber 36. The oil filling block 361 is a cylindrical block with a cross-shaped cross section and one side of the oil filling block 361 is tapered. A second spring 362 is fixedly connected between the side of the oil filling block 361 and the inner wall of the oil filling chamber 36 and the second spring 362 is movably sleeved on the side of the oil filling block 361. The second spring 362 is an existing technology and will not be described in detail here. The oil filling block 361 is squeezed and can slide inside the oil filling chamber 36 and then elastically reset by the second spring 362. The side of the oil filling block 361 is equidistantly provided with oil filling grooves 363 in a circular array. The oil filling grooves 363 are rectangular grooves that can guide the lubricating oil. A matching block 37 is fixedly installed on the side of the oil filling block 361 and is arranged inside the oil storage tank 34. The matching block 37 is a convex block. A detection block 38 is fixedly installed on the inner wall of the oil storage tank 34 at the position corresponding to the matching block 37. The detection block 38 is a pressure sensor (CYT-206). The matching block 37 is pushed and squeezed by the oil filling block 361 on the side of the detection block 38 to trigger a signal.

[0054] Further, such as Figure 7 、 Figure 12 and Figure 13As shown, the compensation mechanism 4 includes a first gear 41 arranged on the lower side of the fixed plate 19 corresponding to the position of the oil injection pump 31. The first gear 41 is a circular gear. A second gear 42 is engaged on the side of the first gear 41 and the second gear 42 is fixedly sleeved on the side of the screw nut block 18. The second gear 42 is a circular ring gear. The first gear 41 and the second gear 42 are engaged to drive the screw nut block 18 to rotate. A mounting groove 43 is opened on the lower side of the fixed plate 19 corresponding to the position of the first gear 41. The mounting groove 43 is a convex cylindrical groove. A mounting rod 44 is movably mounted inside the mounting groove 43 and is fixedly connected to a side position of the first gear 41. The mounting rod 44 is a T-shaped cylindrical rod with a circular groove on the side. A constraint groove 45 is opened on the inner side of the fixed plate 19. The constraint groove 45 is a circular ring groove. A constraint block 46 is movably mounted inside the constraint groove 45 and is fixedly sleeved on a side position of the screw nut block 18. The constraint block 46 is a circular ring block with a serrated side. The screw nut block 18 can be constrained from rotating by sliding the constraint block 46 inside the constraint groove 45.

[0055] Further, such as Figure 7 and Figures 9-13As shown, the clamping mechanism 5 includes a slot 51 provided on the side of the screw nut block 18, the slot 51 is a circular groove, and a third gear 52 is movably installed inside the slot 51, the third gear 52 is a circular ring gear, a fourth gear 53 is meshed on the side of the third gear 52, and the fourth gear 53 is arranged inside the fixed plate 19 corresponding to the position of the oil injection pump 31, the fourth gear 53 is a circular gear with a circular groove on the side, and a matching cavity 54 is provided inside the screw nut block 18 corresponding to the lower side of the third gear 52, the matching cavity 54 is a circular groove, and a slide groove 55 that penetrates the screw nut block 18 is symmetrically provided on the bottom wall of the matching cavity 54, and the slide groove 55 is a rectangular groove. A slider 57 is installed. The slider 57 is a rectangular block. The slider 57 can be constrained to slide inside the slide groove 55. A matching plate 56 is movably installed inside the matching cavity 54. The matching plate 56 is a circular plate with rectangular grooves equidistantly inclined on the side. A constraint rod 58 is movably installed inside the rectangular groove of the matching plate 56 and the constraint rod 58 is fixedly connected to the side position of the slider 57. The constraint rod 58 is a "T"-shaped round rod. When the matching plate 56 rotates, it can constrain the constraint rod 58 to slide on its side and drive the slider 57 to move. A connecting groove 521 that penetrates the screw nut block 18 to the matching cavity 54 is symmetrically opened on the bottom wall of the slot 51. The connecting groove 521 is an arc groove and is movably installed inside the connecting groove 521. There is a connecting rod 522 and the connecting rod 522 is fixedly connected to the position between the third gear 52 and the matching plate 56. The connecting rod 522 is a rectangular rod. The fourth gear 53 is engaged with the third gear 52 to drive it to rotate through the connecting rod 522 to drive the matching plate 56 to rotate accordingly. A mounting block 59 is fixedly installed on the lower side of the slider 57. The mounting block 59 is an arc block. A movable groove 591 is opened on the side of the mounting block 59 close to the trapezoidal screw rod 17. The movable groove 591 is an arc groove with a convex cross-section. A movable block 592 is movably installed inside the movable groove 591. The movable block 592 is an arc block with an I-shaped cross-section. The side of the movable block 592 corresponds to the position of the thread groove of the trapezoidal screw rod 17 A clamping block 595 is fixedly installed, and the clamping block 595 is a one-tenth thread block. The mounting block 59 is pushed by the slider 57 so that the clamping block 595 engages with the thread groove of the trapezoidal screw rod 17 to clamp it. A guide rod 593 that passes through the movable block 592 is fixedly installed inside the movable groove 591. The guide rod 593 is a cylindrical rod. The guide rod 593 can constrain the movable block 592 to move up and down. A support cylinder 594 is fixedly connected between the side of the movable block 592 and the inner wall of the movable groove 591, and the support cylinder 594 is movably sleeved on the side of the guide rod 593. The support cylinder 594 is a spring steel cylinder with a continuous "W"-shaped cross-section. The support cylinder 594 elastically supports the movable block 592.

[0056] Further, such as Figure 7 、 Figure 13 and Figure 14As shown, the second motor 6 is fixedly mounted on the upper side of the oil injection pump 31 and the driving shaft of the second motor 6 is arranged through the fourth gear 53 and the internal position of the mounting rod 44. The impeller of the oil injection pump 31 is fixedly mounted on the side of the driving shaft of the second motor 6. A de-shafting module 8 is provided on the side of the second motor 6 corresponding to the fourth gear 53 and the mounting rod 44. The de-shafting module 8 can be used to de-shaft and switch the drive of the second motor 6. The de-shafting module 8 includes a driving groove 81 provided on the side of the driving shaft of the second motor 6 corresponding to the fourth gear 53 and the mounting rod 44. The driving groove 81 is a "C"-shaped annular groove. A second electric push rod 82 is provided on the inner side of the mounting rod 44 and the fourth gear 53 and the second electric push rod 82 is fixed therein by an elastic block. The second electric push rod 82 is an electric cylinder with a charging battery block provided on the side. A driving block 83 is fixedly installed on the side of the , driving block 83 is a "C"-shaped block, and the driving block 83 is pushed to the inside of the driving slot 81 by the second electric push rod 82. As the driving shaft of the second motor 6 rotates, it can push the fourth gear 53 and the mounting rod 44 to rotate. A buffer block 84 is provided on the side of the driving block 83, and the buffer block 84 is an arc-shaped block made of rubber. A third spring 85 is symmetrically fixedly connected between the buffer block 84 and the side of the driving block 83. The third spring 85 is a prior art and will not be described in detail here. When the driving block 83 does not slide directly into the driving slot 81 when pushed, the buffer block 84 is squeezed so that the third spring 85 is deformed and buffered and slides itself into the side groove position of the driving block 83. After a certain buffer is provided by the buffer block 84, the driving block 83 further slides into the driving slot 81 as the driving shaft of the second motor 6 rotates;

[0057] Further, such as Figure 10 and Figure 15As shown, the limiting mechanism 7 includes a limiting groove 71 opened in the interior of the fixed plate 19, and the limiting groove 71 passes through the fixed plate 19 to the inside of the slot 51 and the constraint groove 45. The limiting groove 71 is a "C"-shaped rectangular groove. A rotating rod 75 is provided inside the limiting groove 71, and the rotating rod 75 is fixed to the inner wall of the limiting groove 71 by a rotating shaft so that it can rotate. The rotating rod 75 is a rectangular rod with a cross-section. A first limiting block 72 and a second limiting block 73 are movably installed in the interior of the limiting groove 71 corresponding to the positions of the third gear 52 and the constraint block 46. The first limiting block 72 is a convex block with a "C" shape on one side, and the second limiting block 73 is a convex block with an arc-shaped serrated shape on one side. Linking rods 76 of different specifications are respectively provided between the rotating rod 75 and the first limiting block 72 and the second limiting block 73, and the linkage rods When the cam 73 is in the closed position, the cam 73 is in the closed position, and the cam 73 is in the closed position, so that the cam 73 can move freely, and the cam 73 can move freely.

[0058] Working principle of the present invention:

[0059] Before installation and use, the compensation mechanism 4 is fine-tuned by the second motor 6 alone, and the limiting mechanism 7 keeps the compensation mechanism 4 and the clamping mechanism 5 in an unrestricted state. Specifically: the second motor 6 drives the impeller of the oil injection pump 31 to rotate so that the lubricating oil in the oil storage box 32 is transported to the inside of the oil storage tank 34. At the same time, the second electric push rod 82 at the position of the mounting rod 44 pushes the driving block 83 to the internal position of the driving groove 81 for upper axis, and then the second motor 6 drives the shaft to rotate and contact the driving block 83, so that the mounting rod 44 rotates accordingly. At this time, the first electric push rod 74 pulls the rotating rod 75 vertically so that the first limiting block 72 and the second limiting block 73 do not limit the fourth gear 53 and the constraint block 46. The first gear 41 and the second gear 42 are engaged and driven by the constraint of the constraint block 46 to rotate the screw nut block 18 alone to fine-tune the fixed plate 19 on the side of the trapezoidal screw 17 to a certain position. By placing a level ruler on the upper side of the platform plate 21 for observation, the fixed plate 19 at the position of each group of turbine modules 15 is adjusted so that the platform plate 21 is used after completing the horizontal calibration;

[0060] During normal operation, the second motor 6 switches the drive to operate, the limit mechanism 7 switches to limit the compensation mechanism 4 and the clamping mechanism 5, the oil injection mechanism 3 detects and injects oil, the platform mechanism 2 cooperates with the lifting to offset the acceleration, and the clamping mechanism 5 strengthens the support of the lifting mechanism 1. Specifically: when the turbine module 15 is driven to engage with the trapezoidal screw 17 to rotate, the first electric push rod 74 pushes the rotating rod 75 to rotate so that the second limit block 73 is squeezed on the side position of the constraint block 46 to fix it, the fourth gear 53 and the second electric push rod 82 at the installation slot 43 position pulls the drive block 83 out of the internal position of the drive slot 81 to decouple, and the screw nut block 18 is engaged with the trapezoidal screw 17 to drive the fixed plate 19 to perform lifting and oiling. The block 361 is squeezed and slides inside the oil injection chamber 36 to be reset by the second spring 362. The oil injection block 361 drives the matching block 37 to contact the detection block 38 so that the force count is fed back to the external controller once. The lifting speed can be known by the counting frequency. At the same time, the speed detected by the turbine module 15 each time it is started, the electric cylinder module 24 pushes and pulls the platform plate 21 to move in a certain opposite direction to offset the acceleration inertia of the platform plate 21. When the fixed plate 19 drops to the lowest position, the electric cylinder module 24 pushes the connecting plate 25 to the highest position and moves in the opposite direction. When the platform plate 21 moves, the first spring 29 slides inside the sleeve 27 and squeezes the first spring 29 to play a certain buffering role. Among them, when the second motor 6 is not driven, the matching block 37 only In this way, when the second motor 6 drives the oil injection pump 31, the lubricating oil is guided to the side of the trapezoidal screw 17 through the oil injection groove 363 when the matching block 37 moves, and the flow meter inside the second connecting pipe 35 detects the lubricating oil flow, which plays an auxiliary verification role in the detection speed of the matching block 37, because the frequency of the oil injection block 361 being squeezed will affect the change of the lubricating oil flow; when the fixed plate 19 stops rising and falling, the fourth gear 53 position decoupling module 8 first puts on the shaft so that the fourth gear 53 and the third gear 52 are meshed, and the third gear 52 drives the matching plate 56 to rotate through the connecting rod 522, and the matching plate 56 constrains the constraint rod 58 to slide inside its rectangular groove so that the slider 57 is constrained to slide by the matching plate 56, and the slider 57 brings The movable mounting block 59 makes the support cylinder 594 close to the side position of the trapezoidal screw rod 17 and clamped. When the clamping block 595 contacts the threaded groove on the side of the trapezoidal screw rod 17, the clamping block 595 is squeezed so that the movable block 592 moves slightly up and down under the constraint of the guide rod 593, and the support cylinder 594 plays an elastic support role. When the clamping block 595 is clamped, the first electric push rod 74 pushes the rotating rod 75 so that the first limit block 72 is clamped on the side of the third gear 52 and the fixed constraint block 46 is not restricted. The mounting rod 44 position is off-axis module 8 and the second motor 6 does not move, which also constrains and fixes the screw nut block 18. On the contrary, when the mounting rod 44 moves, the shaft module 8 is off-axis, and the second motor 6 drives the clamping block 595 away from the side of the trapezoidal screw rod 17.

[0061] When the operation is abnormal, when the fixed plate 19 is not raised and lowered synchronously, the oil injection mechanism 3 performs detection and oil injection, the compensation mechanism 4 performs auxiliary speed regulation, the limit mechanism 7 performs limit switching on the compensation mechanism 4 and the clamping mechanism 5, and the clamping mechanism 5 performs emergency braking. Specifically: the detection block 38 detects that the speed of one or more groups of fixed plates 19 is not synchronized with the normal speed when they are raised and lowered. At this time, the first electric push rod 74 pulls the rotating rod 75 so that the first limit block 72 and the second limit block 73 are not limited. The mounting rod 44 is in the position of the decoupling module 8 on the upper shaft, and the fourth gear 53 is in the position of the decoupling module 8 off the shaft. The first gear 41 is driven by the second motor 6 to engage with the second gear 42 and the screw nut block 18 The constrained block 46 rotates and constrains in the constraint groove 45, and then rotates and engages with the trapezoidal screw 17 to adjust the speed. After a certain period of adjustment intervention, the speed still cannot be maintained normal, and the first motor 11 stops power output. At this time, the mounting rod 44 position decoupling module 8 is decoupling, and the fourth gear 53 position decoupling module 8 is on the shaft. The fourth gear 53 is meshed with the third gear 52 so that the clamping block 595 is clamped at the side position of the trapezoidal screw 17. Then the first electric push rod 74 pushes the rotating rod 75 to rotate so that the first limit block 72 is clamped and fixed on the side of the third gear 52, completing the braking of the platform plate 21 and feeding back to the staff through the controller;

[0062] When one or more groups of fixed plates 19 lose power, the trapezoidal screw 17 is not driven to rotate, the oil injection mechanism 3 at the position of the trapezoidal screw 17 that has lost power is detected and oiled, and the compensation mechanism 4 is driven separately. Specifically: the turbine module 15 speedometer detects that the trapezoidal screw 17 does not rotate when driven by the first motor 11 and the detection block 38 does not receive a signal. At this time, the mounting rod 44 is at the position of the decoupling module 8, and the fourth gear 53 is at the position of the decoupling module 8. The second motor 6 drives the mounting rod 44 so that the first gear 41 and the second gear 42 engage to drive the screw nut block 18 to engage with the trapezoidal screw 17 and move itself. As above, the first electric push rod 74 pulls the rotating rod 75 to rotate so that the second limit block 73 moves away from the constraint block 46, and the oil injection pump 31 draws the lubricating oil inside the oil storage box 32 to the oil storage tank 34 to continuously lubricate the side of the trapezoidal screw 17 to ensure that the platform plate 21 can still be lifted and lowered normally, and feedback information is given to the staff for prompt.

[0063] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

Claims

1. A novel lifting platform device based on a one-to-four synchronous transmission mechanism comprises a lifting mechanism (1), a platform mechanism (2) is provided on the upper side of the lifting mechanism (1), an oil injection mechanism (3) is provided on the side of the lifting mechanism (1), a compensation mechanism (4) is provided on the side of the lifting mechanism (1) at a position corresponding to the lower side of the oil injection mechanism (3), a clamping mechanism (5) is provided inside the lifting mechanism (1) at a position corresponding to the position between the oil injection mechanism (3) and the compensation mechanism (4), a second motor (6) is provided on the upper side of the oil injection mechanism (3), and a limiting mechanism (7) is provided on the side of the lifting mechanism (1) at a position corresponding to the compensation mechanism (4) and the clamping mechanism (5); Its characteristics are: The platform mechanism (2) comprises a platform plate (21), a push-pull electric cylinder module (24) is provided on the lower side of the platform plate (21), and a retractable sleeve rod (28) is provided on the side of the platform plate (21); The oil injection mechanism (3) comprises an oil injection pump (31), an oil storage box (32) is provided on the side of the oil injection pump (31), a movable oil injection block (361) is provided on the side of the oil injection pump (31), a matching block (37) is provided on the side of the oil injection block (361), and a detectable detection block (38) is provided on the side of the matching block (37); The compensation mechanism (4) comprises a first gear (41), a second gear (42) is provided on the side of the first gear (41), and a mounting rod (44) is provided on the upper side of the first gear (41); The clamping mechanism (5) includes a third gear (52), a fourth gear (53) is provided on the side of the third gear (52), a rotatable matching plate (56) is provided on the lower side of the third gear (52), and a movable mounting block (59) is provided on the lower side of the matching plate (56); The limiting mechanism (7) comprises a rotating rod (75), a first limiting block (72) and a second limiting block (73) are provided on the side of the rotating rod (75), and a first electric push rod (74) capable of pushing and pulling is provided on the other side of the rotating rod (75).

2. The novel lifting platform device based on the one-to-four synchronous transmission mechanism according to claim 1 is characterized in that: The lifting mechanism (1) comprises a first motor (11), a reducer (12) is fixedly mounted on the side of the first motor (11), a commutator (13) is mirror-mounted on both sides of the reducer (12), a mounting frame (14) is mounted on the side of the commutator (13), a turbine module (15) is symmetrically mounted on the upper side of the mounting frame (14), a first transmission rod (16) is arranged between the reducer (12) and the commutator (13), a second transmission rod (161) is arranged between the turbine modules (15), a trapezoidal screw rod (17) is arranged inside the turbine module (15), a screw rod nut block (18) is threadedly sleeved on the side of the trapezoidal screw rod (17), and a fixed plate (19) is movably sleeved on the side of the screw rod nut block (18).

3. The novel lifting platform device based on the one-to-four synchronous transmission mechanism according to claim 2 is characterized in that: The platform mechanism (2) comprises a platform plate (21) arranged on the upper side of a fixed plate (19), a base frame (22) is arranged on the lower side of the platform plate (21), a fixed block (23) is fixedly installed equidistantly on the upper side of the base frame (22), an electric cylinder module (24) is fixedly installed equidistantly on the upper side of the platform plate (21), a connecting plate (25) is fixedly installed on the upper side of the electric cylinder module (24), a connecting block (26) is symmetrically fixedly installed on the lower side of the platform plate (21), a sleeve (27) is equidistantly arranged on the lower side of the connecting block (26), a sleeve rod (28) is movably installed in the interior of the sleeve (27), and a first spring (29) is fixedly connected between the side surface of the sleeve rod (28) and the inner wall of the sleeve (27).

4. The novel lifting platform device based on the one-to-four synchronous transmission mechanism according to claim 3 is characterized in that: The oil injection mechanism (3) comprises an oil injection pump (31) fixedly mounted on the side of the fixed plate (19); an oil storage box (32) fixedly mounted on the side of the fixed plate (19); a first connecting pipe (33) fixedly connected between the oil injection pump (31) and the oil storage box (32); an oil storage tank (34) is provided inside the screw nut block (18); and a second connecting pipe (35) fixedly connected to the side of the oil injection pump (31).

5. The novel lifting platform device based on the one-to-four synchronous transmission mechanism according to claim 4 is characterized in that: The oil filling mechanism (3) further comprises an oil filling cavity (36) formed on the inner wall of the oil storage tank (34); an oil filling block (361) is movably mounted inside the oil filling cavity (36); a second spring (362) is fixedly connected between the side of the oil filling block (361) and the inner wall of the oil filling cavity (36); oil filling grooves (363) are equidistantly formed on the side of the oil filling block (361); a matching block (37) is fixedly mounted on the side of the oil filling block (361); and a detection block (38) is fixedly mounted on the inner wall of the oil storage tank (34).

6. The novel lifting platform device based on the one-to-four synchronous transmission mechanism according to claim 5 is characterized in that: The compensation mechanism (4) includes a first gear (41) arranged on the lower side of the fixed plate (19), a second gear (42) meshing with the side of the first gear (41), a mounting groove (43) is provided on the lower side of the fixed plate (19), a mounting rod (44) is movably installed inside the mounting groove (43), a restraining groove (45) is provided on the inner side of the fixed plate (19), and a restraining block (46) is movably installed inside the restraining groove (45).

7. The novel lifting platform device based on the one-to-four synchronous transmission mechanism according to claim 6 is characterized in that: The clamping mechanism (5) includes a slot (51) provided on the side of the screw nut block (18), a third gear (52) movably mounted inside the slot (51), a fourth gear (53) meshing with the side of the third gear (52), a matching cavity (54) provided inside the screw nut block (18), a slide groove (55) symmetrically provided on the bottom wall of the matching cavity (54), a slider (57) movably mounted inside the slide groove (55), a matching plate (56) movably mounted inside the matching cavity (54), a restraining rod (58) movably mounted inside the matching plate (56), a connecting groove (521) symmetrically provided on the bottom wall of the slot (51), a connecting rod (522) movably mounted inside the connecting groove (521), and a mounting block (59) fixedly mounted on the lower side of the slider (57).

8. The novel lifting platform device based on the one-to-four synchronous transmission mechanism according to claim 7 is characterized in that: The clamping mechanism (5) further comprises a movable groove (591) provided on the side of the mounting block (59), a movable block (592) being movably mounted inside the movable groove (591), a clamping block (595) being fixedly mounted on the side of the movable block (592), a guide rod (593) being fixedly mounted inside the movable groove (591), and a support cylinder (594) being fixedly connected between the side of the movable block (592) and the inner wall of the movable groove (591).

9. The novel lifting platform device based on the one-to-four synchronous transmission mechanism according to claim 8 is characterized in that: The second motor (6) is fixedly mounted on the upper side of the oil injection pump (31), and the drive shaft of the second motor (6) is arranged to pass through the inner position of the fourth gear (53) and the mounting rod (44), and a decoupling module (8) is arranged on the side of the second motor (6) corresponding to the position of the fourth gear (53) and the mounting rod (44); The decoupling module (8) comprises a driving groove (81) provided on the side of the driving shaft of the second motor (6); a second electric push rod (82) is provided on the inner side of the mounting rod (44) and the fourth gear (53); a driving block (83) is fixedly installed on the side of the second electric push rod (82); a buffer block (84) is provided on the side of the driving block (83); and a third spring (85) is symmetrically fixedly connected between the side of the buffer block (84) and the side of the driving block (83).

10. The novel lifting platform device based on the one-to-four synchronous transmission mechanism according to claim 9 is characterized in that: The limiting mechanism (7) includes a limiting groove (71) provided inside the fixed plate (19), a rotating rod (75) provided inside the limiting groove (71), a first limiting block (72) and a second limiting block (73) movably installed inside the limiting groove (71), a linkage rod (76) provided between the rotating rod (75) and the first limiting block (72) and the second limiting block (73), a first electric push rod (74) fixedly installed on the inner wall of the limiting groove (71), a guide groove (77) provided on the side of the rotating rod (75), and a guide block (78) movably installed inside the guide groove (77).

Images