CN214835199U - Fixed-point rotary displacement driving mechanism for lower table plate - Google Patents

Abstract

The utility model discloses a fixed-point rotary displacement driving mechanism of a lower table plate, which comprises a displacement driving unit and a rotary driving unit; the rotary driving unit comprises a rotary support, a rotary motor reducer and a pinion; the displacement driving unit provides two schemes of front-back driving and straight driving which are driven by a driving roller, wherein the first scheme comprises a displacement motor speed reducer, a rotating side clutch, a rotating side roller and a straight side roller, so that the rotating displacement of the lower bedplate is driven by the two driving rollers and assisted by the two following rollers; the second scheme comprises a rotating side motor reducer, a rotating side clutch, a rotating side roller, a straight-going side motor reducer, a straight-going side clutch and a straight-going side roller, so that the rotating displacement of the lower bedplate is driven by three driving rollers and assisted by a follow-up roller; the device is obviously different from the prior art, the two schemes can obviously improve the operation efficiency and stability, and the device has the advantages of simple structure, low manufacturing cost, practicability, durability and convenient maintenance.

Description

Fixed-point rotary displacement driving mechanism for lower table plate

Technical Field

The utility model relates to a mechanical type parking equipment technical field, more specifically the lower platen fixed point rotary displacement actuating mechanism that says so relates to for the lower platen that bears the vehicle can realize the fixed point and do not have turning radius's right angle and turn to the displacement.

Background

With the increase of the automobile holding amount in China, in order to solve the problem of insufficient parking space, domestic mechanical parking equipment is widely applied, wherein the mechanical parking equipment comprises lower bedplate forward-moving rotary parking equipment. The technical scheme adopted by the current product of the lower bedplate forward-moving rotary parking equipment is as follows: a rear drive system is arranged at the rear position of the lower bedplate to drive the displacement of the lower bedplate, a following universal wheel without a drive function is arranged at the front position of the lower bedplate, the lower bedplate is guided by a straight-going guide mechanism or a rotary guide mechanism to perform linear displacement or rotary displacement under the drive of the rear drive system, and the universal wheel at the front position is free to steer and roll; the scheme has the defects of poor driving and guiding capabilities, low operation efficiency, unstable steering and the like. In recent years, an improved scheme that at least two sets of roller mechanisms which are fixed in position and have rolling directions matched with the lower bedplate to move straight or rotate are arranged in the front of the lower bedplate, and the roller mechanisms are switched through a lifting mechanism is provided in the industry. Therefore, it is still a problem to be solved by those skilled in the art to design a fixed-point rotary displacement driving mechanism with simple structure, high operation efficiency, low manufacturing cost, and application to a lower platen forward-moving rotary parking device.

Disclosure of Invention

In view of this, the utility model provides a lower platen fixed point gyration displacement actuating mechanism, aim at overcome the not enough of prior art, install at lower platen front end displacement actuating mechanism realizes the fixed point gyration of lower platen with simple, reliable, high-efficient, the mode that the cost of manufacture is low to realize the preceding, the rear end simultaneous drive displacement of lower platen.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a basic technical scheme of lower platen fixed point gyration displacement actuating mechanism which characterized in that: the displacement driving mechanism is arranged at the front end of the lower bedplate forward-moving and rotating parking equipment and comprises a displacement driving unit and a rotary driving unit.

The displacement driving unit is electrically connected with a control system of the parking equipment and comprises a displacement motor speed reducer, a rotating side clutch, a rotating side roller and a straight-going side roller; the displacement motor speed reducer is a set, the two ends of the displacement motor speed reducer output, and the axis of the output shaft is horizontally arranged; wherein, the rotating side clutch is fixedly arranged at one end of the rotating side facing the lower bedplate in an output way; the rotating side clutch is driven by a control system output signal and is in a combined state or a separated state, and a rotating side roller is fixedly arranged at an output end; and a straight-moving side roller is fixedly arranged at one end of the displacement motor speed reducer facing the straight-moving side of the lower bedplate.

The rotary driving unit is electrically connected with a control system of the parking equipment and comprises a rotary support, a rotary motor reducer and a pinion; the slewing bearing comprises a fixed ring and a rotating ring; the position of the fixed ring is relatively fixed, the rotating ring can rotate around the fixed ring, and the rotation axis is the rotation axis of the rotation driving unit.

The swing drive unit takes one of two forms: in a first form, the rotating ring is an outer ring processed with an external gear; the output end of the rotary motor speed reducer is fixedly provided with the pinion; the pinion is meshed with the external gear of the outer ring; in the second form, the rotating ring is an inner ring processed with an internal gear; the output end of the rotary motor speed reducer is fixedly provided with the pinion; the pinion gear is meshed with the inner gear of the inner ring. The slewing bearing who uses at present comprises and constitutes these two kinds of forms by outer gear outer lane and inner circle by internal gear inner circle and outer lane, and these two kinds of forms all can use the technical scheme of the utility model.

The fixed ring of the rotary driving unit is fixedly arranged on the lower bedplate; the rotary motor reducer is fixedly arranged on the lower bedplate; a displacement motor reducer of the displacement driving unit is fixedly arranged on a rotating ring of the rotary driving unit; the rotary motor reducer rotates to drive the pinion to rotate, so that the rotating ring is driven to rotate around the rotating axis of the rotary driving unit, and the displacement driving unit is driven to synchronously rotate.

When the axis of the output shaft of the displacement motor reducer is in a state perpendicular to the center line of the lower bedplate in the length direction and the rotating side clutch is in a combined state, the displacement motor reducer rotates to drive the rotating side roller and the straight side roller to rotate, and the lower bedplate is driven to make linear displacement along the center line of the lower bedplate in the length direction together under the cooperation of the driving roller mechanism at the rear end of the lower bedplate.

When the lower bedplate is in a static state, the rotating side clutch is in a separated state, and the rotary motor reducer rotates to drive the displacement driving unit to rotate; meanwhile, the displacement motor reducer rotates to drive the straight-going side roller to roll, and the rolling speed of the straight-going side roller is matched with the rotation speed of the displacement driving unit; it is known that the purpose of the above-mentioned straight side roller rolling cooperating with the rotation of the displacement driving unit is to make the straight side roller not generate sliding friction to the ground (at this time, the rotating side roller performs follow-up rolling) when the displacement driving unit rotates.

When the axis of the output shaft of the displacement motor reducer passes through the rotation center of the rotation displacement of the lower bedplate and the rotating side clutch is in a separated state, the displacement motor reducer rotates to drive the straight side roller to rotate, and under the coordination of the driving roller mechanism at the rear end of the lower bedplate, the lower bedplate is driven to rotate and displace around the rotation center of the rotation displacement of the lower bedplate; when the lower bedplate is in rotary displacement, the rotary side roller rolls along with the lower bedplate.

According to the conventional industry, the parking spaces in the lower platen forward-moving rotary parking equipment are longitudinally arranged; for convenience of description, the side close to the lane is taken as the front, the side far away from the lane is taken as the rear, the intersection position of one longitudinal sideline at the left side or the right side of the parking space and the transverse sideline adjacent to the parking space of the lane is set as the rotation center of the lower bedplate, one side of the lower bedplate close to the rotation center is called a rotation side, and the other side is called a straight side. The technical scheme of the utility model basis is above make relevant position description.

For the stability of platen displacement under the increase, prior art is supporting the rectilinear guiding mechanism and the rotatory guiding mechanism that is provided with different forms of in the rotatory side of platen under, is provided with the driving roller mechanism that rotates the car length direction central line that tangential direction is on a parallel with the platen down at the rear end of platen down, the utility model discloses a technical scheme is along with above-mentioned prior art rectilinear guiding mechanism, rotatory guiding mechanism, driving roller mechanism, and the specific structure of these mechanisms is not repeated here.

Further, based on the basic technical scheme, the method is characterized in that: the displacement driving unit is electrically connected with a control system of the parking equipment, and comprises a rotating side motor reducer, a rotating side clutch and a rotating side roller, and also comprises a straight-going side motor reducer, a straight-going side clutch and a straight-going side roller; the axis of an output shaft of the rotating side motor reducer is horizontally arranged and faces to the rotating side of the lower bedplate, and the rotating side clutch is fixedly installed on the output shaft; the rotating side clutch is driven by a control system output signal and is in a combined state or a separated state, and a rotating side roller is fixedly arranged at an output end; the axis of an output shaft of the straight-moving side motor reducer is horizontally arranged and faces the straight-moving side of the lower bedplate, and the output shaft is fixedly provided with the straight-moving side clutch; the straight-moving side clutch is driven by a control system output signal and is in a combined state or a separated state, and a straight-moving side roller is fixedly installed at an output end; the axes of the output shafts of the rotating side motor reducer and the straight side motor reducer are positioned on the same straight line.

The fixed ring of the rotary driving unit is fixedly arranged on the lower bedplate; the rotary motor reducer is fixedly arranged on the lower bedplate; a rotating side motor reducer and a straight-moving side motor reducer of the displacement driving unit are fixedly arranged on a rotating ring of the rotary driving unit; the rotary motor reducer rotates to drive the pinion to rotate, so that the rotating ring is driven to rotate around the rotating axis of the rotary driving unit, and the displacement driving unit is driven to synchronously rotate.

When the axes of the output shafts of the rotating side motor reducer and the straight side motor reducer are in a state of being perpendicular to the central line of the lower bedplate in the length direction, and the rotating side clutch and the straight side clutch are in a combined state, the rotating side motor reducer rotates to drive the rotating side roller to rotate, the straight side motor reducer rotates to drive the straight side roller to rotate, and the lower bedplate is driven to make linear displacement along the central line of the lower bedplate in the length direction together under the coordination of the driving roller mechanism at the rear end of the lower bedplate.

When the lower bedplate is in a static state, the rotating side clutch and the straight-moving side clutch are in a separated state, and the rotary motor reducer rotates to drive the displacement driving unit to rotate; at the moment, the rotating side roller and the straight side roller roll along with each other, and sliding friction cannot be generated on the ground.

When the axes of the output shafts of the rotating side motor reducer and the straight-moving side motor reducer pass through the rotation center of the rotation displacement of the lower platen, and the rotating side clutch is in a separation state, the straight-moving side clutch is in a combination state, the straight-moving side motor reducer rotates to drive the straight-moving side roller to rotate, and the lower platen is driven to rotate and displace around the rotation center of the rotation displacement of the lower platen together under the coordination of a driving roller mechanism at the rear end of the lower platen; when the lower bedplate makes rotary displacement, the rotary side motor reducer does not operate, and the rotary side roller rolls in a follow-up manner.

The difference of the structure of this technical scheme and aforementioned basic technical scheme lies in that two motor reducer pass through clutch drive rotation side gyro wheel and straight line side gyro wheel respectively, and operation control's difference lies in that when the rotary motor speed reducer rotates, drive displacement drive unit gyration, rotation side motor speed reducer, straight line side motor speed reducer all need not to make normal running fit, and the difference of effect lies in that when the platen is rotatory down, rotation side motor speed reducer, straight line side motor speed reducer play the drive action simultaneously.

The utility model provides a set up including displacement drive unit in platen the place ahead position down, two technical scheme of swing drive unit's displacement actuating mechanism, two technical scheme's displacement actuating mechanism homoenergetic can realize the pivot and turn to, and the linear displacement of lower platen receives the drive of four drive rolls, the rotary displacement of first technical scheme's lower platen receives two drive rolls drives, two follow-up gyro wheels are supplementary, the rotary displacement of second technical scheme's lower platen receives three drive roll drive, a follow-up gyro wheel is supplementary, two technical scheme homoenergetic enough obviously improve operating efficiency and stability, form with prior art and show the difference, the defect of current product has both been solved, simple structure has again, the advantage of low in manufacturing cost, reach practicality, and is durable, maintain convenient effect. Therefore, the utility model discloses technical scheme will play powerful promoting effect to the popularization and application of lower platen antedisplacement rotation parking equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description only correspond to some of the embodiments of the present invention, and for those skilled in the art, other drawings and embodiments can be obtained according to the provided drawings without creative efforts.

Fig. 1 to 7 are schematic views illustrating operation of one embodiment of the present invention;

in the figure: 1 lane; 2, lane sideline; 3, a rotation center; 10 rotating motor reducer; 11 mounting a bracket; 12 a pinion gear; 13, the ground; 41 rotating the side rear roller; a rear 42 clutch; 43 rear motor reducer; 44 straight side rear rollers; 5 parking spaces; 51 a rotation side; 52 rear edge line; 53 straight side; 54 a front sideline; 6, a lower bedplate; 71 rotating the side roller; 72 a rotation-side clutch; 73 displacement motor reducer; 74 straight side rollers; 76 mounting plates; 91 an outer ring; 92 inner ring.

Fig. 8 is a schematic view of the structure and the related installation relationship of the swing driving unit and the displacement driving unit according to another embodiment of the present invention;

in the figure: 10 rotating motor reducer; 11 mounting a bracket; 12 a pinion gear; 13, the ground; 6, a lower bedplate; 71 rotating the side roller; 72 a rotation-side clutch; 74 straight side rollers; 76 mounting plates; 77 straight-going side motor reducer; 78 a direct side clutch; 79 rotating side motor reducer; 91 an outer ring; 92 inner ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment shown in fig. 1 to 7 discloses an operation schematic diagram of a lower platen fixed point rotation displacement driving mechanism of the present invention.

As shown in fig. 1, the lane 1 is located below, the vertically arranged parking spaces 5 are located above, the lower deck 6 inside the parking spaces 5 is in a standing state, and the intersection point of the right side line of the parking spaces 5 and the lane line 2 in the illustrated embodiment is the rotation center 3 of the lower deck 6, so that the right side of the parking spaces 5 is a rotation side 51, the left side is a straight side 53, the upper side is a rear line 52, and the lower side is a front line 54.

As seen from above in fig. 1, the rear drive system of the lower platen 6 of the illustrated embodiment is installed at a rear position of the lower platen, is a power device with clutches at both ends of a motor reducer, and includes a rear motor reducer 43, a rear clutch 42, a rotating side rear roller 41, and a straight side rear roller 44; referring to the prior art and referring to fig. 1: the rear motor reducer 43 is fixedly arranged on the lower bedplate 6; the rear clutch 42 is arranged on an output element at the tail end of the rear motor speed reducer 43 facing the rotating side 51, and outputs and drives the rotating side rear roller 41; the rear motor reducer 43 drives the rear roller 44 on the straight traveling side towards the tail end of the straight traveling side 53; the rotating side rear roller 41 and the straight side rear roller 44 are respectively positioned at the end positions of the two side surfaces of the rear end of the lower platen 6; when the rear clutch 42 is in a disengaged state, the rotating-side rear roller 41 is a follower roller, and when the rear clutch 42 is in an engaged state, the rotating-side rear roller 41 is driven to rotate by the rear motor reducer 43 through the rear clutch 42 and is a drive roller; the straight-moving side rear roller 44 is directly driven by the rear motor reducer 42 and always serves as a driving roller.

The lower part of fig. 1 mainly shows a lower bedplate fixed point rotation displacement driving mechanism; for clarity, only the displacement driving unit is shown, and the rotation driving unit is not shown (the structure and relative installation relationship of the rotation driving unit and the displacement driving unit can be referred to fig. 2). As can be seen, the displacement drive unit includes a rotation-side motor reducer 73, a rotation-side clutch 72, a rotation-side roller 71, and a rectilinear-motion side roller 74; therefore, this embodiment corresponds the utility model discloses a basic technical scheme.

From the foregoing text and with reference to the figures shown in the drawings, it can be seen that: the displacement motor speed reducer 73 is a set, the two ends of the displacement motor speed reducer output, and the axis of the output shaft is horizontally arranged; wherein, a rotating side clutch 72 is fixedly mounted towards one end of the rotating side 51 of the lower platen 6; the rotating side clutch 72 is driven by the output signal of the control system and is in a combined state or a separated state, and the output end is fixedly provided with a rotating side roller 71; the displacement motor reducer 73 is provided with a straight roller 74, which is fastened to one end of the straight side 53 of the lower platen 6.

From the foregoing text and with reference to FIG. 2, it can be seen that: the rotary driving unit is electrically connected with a control system of the parking equipment and comprises a rotary support, a rotary motor reducer 10 and a pinion 12; the slewing bearing comprises a fixed ring and a rotating ring; the position of the fixed ring is relatively fixed, the rotating ring can rotate around the fixed ring, and the rotation axis is the rotation axis of the rotation driving unit. As can be seen from fig. 2, the inner ring 92 of the present embodiment is a fixed ring, the outer ring 91 processed with an external gear is a rotating ring, and the inner ring 92 and the outer ring 91 constitute the slewing bearing of the present embodiment; therefore, the rotary drive unit of the present embodiment adopts the first form described above, in which the output end of the rotary motor reducer 10 is fixedly mounted with the pinion gear 12; the pinion gear 12 meshes with an external gear of an outer ring 91 (a rotating ring, the same applies hereinafter). It can be seen that the inner ring 92 (stationary ring, same below) is mounted securely over the lower platen 6; a rotary motor reducer 10 is fixedly arranged on the lower bedplate 6 through a mounting bracket 11; the displacement motor reducer 73 of the displacement driving unit is fixedly arranged on the outer ring 91 of the rotary driving unit through the mounting plate 76; the rotation of the rotary motor reducer 10 drives the pinion gear 12 to rotate, thereby driving the outer ring 91 to rotate around the rotation axis of the rotation driving unit and driving the displacement driving unit to rotate synchronously.

Fig. 3 shows the lower platen 6 ready for forward linear displacement based on fig. 1.

In contrast to the text above and to the A1 magnified view and the A2 magnified view of FIG. 3, it can be seen that: when the lower platen 6 is ready to be linearly displaced, the rear clutch 42 is engaged (see an enlarged view of a 1), and both the rotating side rear roller 41 and the straight side rear roller 44 are drive rollers; the axis of the output shaft of the displacement motor reducer 73 is in a state perpendicular to the center line of the lower platen 6 in the vehicle length direction, the rotating side clutch 72 is in a coupled state (see an enlarged view of a 2), and both the rotating side roller 71 and the straight side roller 74 are driving rollers; the rear motor reducer 43 and the displacement motor reducer 73 rotate to drive the rotating side rear roller 41, the straight side rear roller 44, the rotating side roller 71 and the straight side roller 74 to roll in the same direction and at the same tangential linear velocity, respectively, and drive the lower platen 6 to linearly displace.

Fig. 4 shows the lower deck 6 as it is moved forward over the roadway 1, based on fig. 3. It can be seen that the rotation axes of the rotation side rear roller 41 and the straight side rear roller 44 pass through the rotation center 3 of the lower platen 6.

Fig. 5 shows a condition in which the displacement drive unit is rotationally displaced by the rotation drive unit so that the lower platen 6 is rotationally displaced forward, based on fig. 4.

As can be seen from the above description and from the enlarged views B1 and B2 of fig. 5, before the displacement driving unit performs the rotational displacement, the rotating-side clutch 72 is in a disengaged state (see the enlarged view B2), and the rotating-side roller 71 is a follower roller; when the rotary motor reducer 10 rotates to drive the pinion 12 to rotate, the outer ring 91 is driven to rotate relative to the inner ring 92, so that the displacement driving unit is driven to rotate; meanwhile, the displacement motor reducer 73 rotates to drive the straight side roller 74 to roll, the rolling speed of the straight side roller 74 is matched with the rotation speed of the displacement driving unit, and the rotating side roller 71 rolls along with the displacement driving unit; the purpose of the rolling engagement of the straight-running side roller 74 with the rotation of the displacement drive unit is to prevent the straight-running side roller 74 from generating slip friction on the ground when the displacement drive unit rotates. It should be noted that, when the displacement driving unit rotates, the lower platen 6 is in a stationary state (the rear clutch 42 shown in the enlarged view of B1 is in an engaged state to increase the stability of the lower platen 6 in a stationary state).

Fig. 6 shows that the displacement drive unit completes the rotational displacement around the rotation center based on fig. 5, and the extension lines of the rotation axes of the rotation side roller 71 and the straight side roller 74 pass through the rotation center 3 of the lower platen 6 for the rotational displacement, and the lower platen 6 is ready for the forward rotational displacement. In contrast to the text above and to the C1 magnification and C2 magnification of FIG. 6, it can be seen that: before the lower platen 6 is rotationally displaced, the rear clutch 42 is in a disengaged state (see an enlarged view of C1), and the rotating-side rear roller 41 is a follower roller; the rotation-side clutch 72 is in a disengaged state (see an enlarged view of C2), and the rotation-side roller 71 is a follower roller; the rear motor reducer 43 rotates to drive the straight-going side rear roller 44 to rotate; the displacement motor reducer 73 rotates to drive the straight side roller 74 to rotate; the rotation directions of the straight-moving side rear roller 44 and the straight-moving side roller 74 are the same, and the linear velocity of the rotating tangent line is matched with the angular velocity of the rotation of the lower bedplate 6, so that the lower bedplate 6 is driven to rotate and displace around the lower bedplate rotation center 3; when the lower platen 6 is rotationally displaced, the rotating side rear roller 41 and the rotating side roller 71 both roll in accordance therewith.

Fig. 7 shows that the lower platen 6 is rotationally displaced forward based on fig. 6 so that the vehicle length direction center line of the lower platen 6 is parallel to the lane center line.

The lower platen 6 is reset from the state shown in fig. 7 to the state shown in fig. 1, which is actually the reverse operation of the above operation, and can be obtained by referring to the foregoing text and the related drawings, which are not described herein again.

Fig. 8 is a schematic view showing the structure and the related installation relationship of a rotation driving unit and a displacement driving unit according to another embodiment of the present invention; as can be seen from the figure, the displacement drive unit of the present embodiment includes a straight-moving side motor reducer 77 and a rotating side motor reducer 79, so the present embodiment is a preferred embodiment based on the basic technical solution described above.

From the foregoing text and with reference to FIG. 8, it can be seen that: the rotary driving unit is electrically connected with a control system of the parking equipment and comprises a rotary support, a rotary motor reducer 10 and a pinion 12; the slewing bearing comprises a fixed ring and a rotating ring; the position of the fixed ring is relatively fixed, the rotating ring can rotate around the fixed ring, and the rotation axis is the rotation axis of the rotation driving unit. As can be seen from fig. 8, the outer ring 91 of the present embodiment is a fixed ring, the inner ring 92 processed with an internal gear is a rotating ring, and the inner ring 92 and the outer ring 91 constitute the slewing bearing of the present embodiment; therefore, the rotary drive unit of the present embodiment adopts the second form described above, in which the pinion gear 12 is fastened to the output end of the rotary motor reducer 10; the pinion gear 12 meshes with an internal gear of an inner race 92 (a rotating race, the same applies hereinafter). It can be seen that an outer ring 91 (fixed ring, same below) is mounted tightly on the lower platen 6; a rotary motor reducer 10 is fixedly arranged on the lower bedplate 6 through a mounting bracket 11; a straight-moving side motor reducer 77 and a rotating side motor reducer 79 of the displacement driving unit are fixedly arranged on an inner ring 92 of the rotary driving unit through a mounting plate 76; the rotation of the rotary motor reducer 10 drives the pinion gear 12 to rotate, thereby driving the inner race 92 to rotate around the rotation axis of the rotation driving unit and driving the displacement driving unit to rotate synchronously.

The utility model discloses operation principle and basic technical scheme based on aforementioned basic technical scheme's preferred scheme are the same basically, and its embodiment can reachd through aforementioned embodiment, and here is not repeated.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (2)

1. The utility model provides a lower platen fixed point rotary displacement actuating mechanism which characterized in that: the displacement driving mechanism is arranged at the front end of a lower bedplate of the lower bedplate forward-moving rotary parking equipment and comprises a displacement driving unit and a rotary driving unit;

the displacement driving unit is electrically connected with a control system of the parking equipment and comprises a displacement motor speed reducer, a rotating side clutch, a rotating side roller and a straight-going side roller; the displacement motor speed reducer is a set, the two ends of the displacement motor speed reducer output, and the axis of the output shaft is horizontally arranged; wherein, the rotating side clutch is fixedly arranged at one end of the rotating side facing the lower bedplate in an output way; the rotating side clutch is driven by a control system output signal and is in a combined state or a separated state, and a rotating side roller is fixedly arranged at an output end; a straight-going side roller is fixedly arranged at one end of the displacement motor reducer facing the straight-going side of the lower bedplate in an output manner;

the rotary driving unit is electrically connected with a control system of the parking equipment and comprises a rotary support, a rotary motor reducer and a pinion; the slewing bearing comprises a fixed ring and a rotating ring; the position of the fixed ring is relatively fixed, the rotating ring can rotate around the fixed ring, and the rotation axis is the rotation axis of the rotation driving unit;

the swing drive unit takes one of two forms: in a first form, the rotating ring is an outer ring processed with an external gear; the output end of the rotary motor speed reducer is fixedly provided with the pinion; the pinion is meshed with the external gear of the outer ring; in the second form, the rotating ring is an inner ring processed with an internal gear; the output end of the rotary motor speed reducer is fixedly provided with the pinion; the pinion is meshed with the inner gear of the inner ring;

the fixed ring of the rotary driving unit is fixedly arranged on the lower bedplate; the rotary motor reducer is fixedly arranged on the lower bedplate; a displacement motor reducer of the displacement driving unit is fixedly arranged on a rotating ring of the rotary driving unit; the rotary motor reducer rotates to drive the pinion to rotate, so that the rotating ring is driven to rotate around the rotating axis of the rotary driving unit, and the displacement driving unit is driven to synchronously rotate.

2. The lower platen fixed-point rotary displacement drive mechanism of claim 1, further comprising: the displacement driving unit is electrically connected with a control system of the parking equipment, and comprises a rotating side motor reducer, a rotating side clutch and a rotating side roller, and also comprises a straight-going side motor reducer, a straight-going side clutch and a straight-going side roller; the axis of an output shaft of the rotating side motor reducer is horizontally arranged and faces to the rotating side of the lower bedplate, and the rotating side clutch is fixedly installed on the output shaft; the rotating side clutch is driven by a control system output signal and is in a combined state or a separated state, and a rotating side roller is fixedly arranged at an output end; the axis of an output shaft of the straight-moving side motor reducer is horizontally arranged and faces the straight-moving side of the lower bedplate, and the output shaft is fixedly provided with the straight-moving side clutch; the straight-moving side clutch is driven by a control system output signal and is in a combined state or a separated state, and a straight-moving side roller is fixedly installed at an output end; the axes of the output shafts of the rotating side motor reducer and the straight side motor reducer are positioned on the same straight line;

the fixed ring of the rotary driving unit is fixedly arranged on the lower bedplate; the rotary motor reducer is fixedly arranged on the lower bedplate; a rotating side motor reducer and a straight-moving side motor reducer of the displacement driving unit are fixedly arranged on a rotating ring of the rotary driving unit; the rotary motor reducer rotates to drive the pinion to rotate, so that the rotating ring is driven to rotate around the rotating axis of the rotary driving unit, and the displacement driving unit is driven to synchronously rotate.

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