CN210852718U

CN210852718U - Driving device of active safety test trolley

Info

Publication number: CN210852718U
Application number: CN201922065081.4U
Authority: CN
Inventors: 韩勇; 甄辉; 陈燕飞; 王科
Original assignee: Zhejiang Zhiling Robot Technology Co ltd
Current assignee: Zhejiang Zhiling Robot Technology Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-06-26
Anticipated expiration: 2029-11-26

Abstract

The driving device of the active safety test trolley. The existing active safety test trolley has the defects that the weight of a trolley body is heavy, a motor with a large size has to be selected for driving, a multi-stage speed reducing mechanism is arranged, a damping device of the existing active safety test trolley adopts a single spring structure, springs are thick, and the internal structure design of the existing active safety test trolley occupies a large space. The utility model discloses the constitution includes: a vehicle body; the bottom of the vehicle body is provided with 2 double-spring shock-absorbing motors which are directly connected with a driving device and a double-spring shock-absorbing universal wheel structure device, and the double-spring shock-absorbing motors are directly connected with the driving device and the double-spring shock-absorbing universal wheel structure device are respectively installed inside the groove. The utility model is used for drive initiative safety test dolly.

Description

Driving device of active safety test trolley

The technical field is as follows:

the utility model relates to an initiative safety test dolly drive arrangement.

Background art:

the existing active safety test trolley has the disadvantages that the weight of a trolley body is heavy, a motor with a large size has to be selected for driving, a multi-stage speed reducing mechanism is arranged, and a damping device of the existing active safety test trolley adopts a single spring structure, so that corresponding springs of the existing active safety test trolley are large for bearing a large load. Therefore, the test trolley adopting the structure occupies a large space due to the internal structure design, so that the overall height of the test trolley is generally larger than 100mm, and the impact damage caused by rolling is greatly increased due to a too high trolley body during testing. Therefore, the structure has high design cost, easy damage to equipment and high maintenance cost.

The utility model has the following contents:

the utility model aims at providing an initiative safety test dolly drive arrangement is guaranteeing to drive under the prerequisite of power and holding power, can reduce the automobile body size greatly.

The above purpose is realized by the following technical scheme:

an active safety test trolley driving device, comprising: a vehicle body;

the bottom of the vehicle body is provided with 2 double-spring shock-absorbing motor direct-connection driving devices and a double-spring shock-absorbing universal wheel structure device, and the double-spring shock-absorbing motor direct-connection driving devices and the double-spring shock-absorbing universal wheel structure device are respectively arranged in the grooves;

the double-spring shock-absorbing motor direct-connection driving device comprises 2 spring telescopic shock-absorbing mechanisms, one sides of the spring telescopic shock-absorbing mechanisms are hinged to a driving mounting frame, the other sides of the spring telescopic shock-absorbing mechanisms are hinged to a first fixing seat and a second fixing seat, the driving mounting frame is connected with a driving wheel and a driving motor, one side of a connecting rod is hinged to the driving mounting frame, and the other side of the connecting rod is hinged to the first fixing seat and the second fixing seat;

the double-spring shock-absorbing universal wheel structure device comprises wheels, wherein the wheels are hinged to a swing arm, the swing arm is hinged to a support, a shaft is fixedly connected to the support, a bearing seat is hinged to the support through a bearing and the shaft, a pull rod is fixedly connected to the support, and a limit nut is fixedly connected to the pull rod; the spiral spring is clamped between the bracket and the limiting nut.

Initiative safety test dolly drive arrangement, the flexible damper of spring includes sleeve, articulated seat, the sleeve articulates on the fixing base, articulated seat articulates on the drive mounting bracket, articulated seat is inside to be connected with lead screw, articulated seat outside and limiting plate connection, the sleeve is connected with the uide bushing, adjusting nut with coil spring is pushed down to the limiting plate, orders about lead screw to be concertina movement in the uide bushing when the atress to realize that drive arrangement's whole reciprocates down.

The utility model has the advantages that:

the utility model discloses double spring shock absorber motor directly links drive arrangement, under the prerequisite of guaranteeing drive power and holding power, adopts two minor diameter springs to arrange respectively in the drive wheel both sides to reduce shared space, can reduce the automobile body size greatly, reduce the production maintenance cost.

The utility model discloses motor directly links drive structure, because whole car design size reduces greatly, corresponding total load weight also descends greatly, consequently under the prerequisite of guaranteeing drive power, adopts the drive structure that the motor directly links, saves reduction gears to not only reduced shared space, and then simplified drive mechanism, reduced equipment cost.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the direct connection driving device of the dual-spring shock-absorbing motor of the present invention.

Fig. 3 is a side view of the dual-spring shock-absorbing motor direct-connecting driving device of the present invention.

Fig. 4 is a cross-sectional view of the connecting rod assembly of the dual-spring shock-absorbing motor direct-connected driving device of the utility model.

Fig. 5 is a sectional view of the spring extension damping mechanism of the present invention.

Fig. 6 is a schematic structural view of the double-spring shock-absorbing universal wheel structure device of the present invention.

Fig. 7 is a top view of fig. 6.

Fig. 8 is a sectional view a-a of fig. 7.

The specific implementation mode is as follows:

in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides an active safety test trolley driving device, which comprises a trolley body 1, and a double-spring shock-absorbing motor direct-connection driving device 2, a double-spring shock-absorbing motor direct-connection driving device 4 and a double-spring shock-absorbing universal wheel structure device 3 which are fixed on the trolley body;

the direct-connection driving device of the double-spring shock-absorbing motor comprises a driving mounting frame 21, a driving wheel 22, a driving motor 23, a connecting rod 24, a fixed seat 25, a fixed seat 26 and a spring telescopic shock-absorbing mechanism 27. The driving wheel 22 and the driving motor 23 are fixedly connected on the driving mounting frame 21; the spring telescopic damping mechanism 27 is respectively hinged on the driving mounting frame 21 and the fixed seat 25 or the fixed seat 26; the connecting rod 24 is respectively hinged on the driving mounting frame 21 and the fixed seat 25 or the fixed seat 26; the spring telescopic damping mechanism 27 is stressed to be telescopic so as to drive the driving wheel, the driving frame and the driving motor to move up and down under the limitation of the connecting rod, so that the driving device retracts into the vehicle body when the vehicle body is rolled, the pressure is transferred to the vehicle body to bear, and the driving device is prevented from being damaged.

The spring extension and contraction damping mechanism 27 includes a sleeve 271, an adjusting nut 272, a lead screw 273, a guide sleeve 274, a coil spring 275, a limit plate 276, and a hinge seat 277. The sleeve 271 and the hinge seat 277 are respectively hinged on the fixed seat 25, the fixed seat 26 and the driving installation frame 21; the guide screw 273 and the limiting plate 276 are fixedly connected to the hinge seat 277; the sleeve 271 is fixedly connected with the guide sleeve 274; the adjusting nut 272 and the limiting plate 276 press the spiral spring 275, and when a force is applied, the guide screw 273 is driven to perform telescopic motion in the guide sleeve 274, so that the integral up-and-down movement of the driving device is realized.

The double-spring shock-absorbing universal wheel structure 3 device comprises a wheel 31, a bearing seat 32, a shaft 33, a bearing 34, a bracket 35, a rotating shaft 36, a swing arm 37, a pull rod 38, a spiral spring 39 and a limit nut 40. The wheel 31 is hinged on the swing arm 37; the swing arm 37 is hinged on the bracket 35; the shaft 33 is fixedly connected to the bracket 35; the bearing seat 32 is hinged with the bracket 35 through the bearing 34 and the shaft 33 so as to realize 360-degree rotation of the wheel 31 around the shaft 33; the pull rod 38 is fixedly connected to the bracket 35; the limiting nut 40 is fixedly connected to the pull rod 38; the coil spring 39 is caught between the bracket 35 and the stopper nut 40. When the vehicle body is rolled, the wheel 31 is compressed into the vehicle body around the rotating shaft 36 to avoid damage, and when the rolling is disappeared, the coil spring 39 is deformed and restored to enable the wheel 31 to rotate around the rotating shaft 36 to lift the vehicle body.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an initiative safety test dolly drive arrangement which characterized by: the composition comprises: a vehicle body;

2. The active safety test cart drive of claim 1, wherein: the spring telescopic damping mechanism comprises a sleeve and a hinged seat, the sleeve is hinged to a fixing seat, the hinged seat is hinged to a drive mounting frame, the hinged seat is connected with a guide screw rod, the hinged seat is connected with a limiting plate, the sleeve is connected with a guide sleeve, an adjusting nut and the limiting plate press the spiral spring, the guide screw rod is driven to do telescopic motion in the guide sleeve when stressed, and therefore the whole driving device is driven to move up and down.