CN203020443U

CN203020443U - Motor-driven carrier connecting rod auxiliary wheel device

Info

Publication number: CN203020443U
Application number: CN 201220678247
Authority: CN
Inventors: 张玉超; 张晓录
Original assignee: Hangcha Group Co Ltd
Current assignee: Hangcha Group Co Ltd
Priority date: 2012-12-06
Filing date: 2012-12-06
Publication date: 2013-06-26
Anticipated expiration: 2022-12-06

Abstract

The utility model relates to a motor-driven carrier connecting rod auxiliary wheel device. The motor-driven carrier connecting rod auxiliary wheel device aims at reducing amplitude of vibration in the process of moving forward. The motor-driven carrier connecting rod auxiliary wheel device is characterized by comprising an auxiliary wheel which can freely rotate by 360 degrees at a vertical surface and a supporting plate which is connected with a car frame in a hinge joint mode and is capable of freely rotating around a hinge point on an axis, wherein a damper assembly is connected with the supporting plate and away from one end of the hinge point of the car frame and the damper assembly in a hinge joint mode, the other end of the damper assembly is connected with the car frame in a hinge joint mode, and the auxiliary wheel is arranged at the lower surface of the supporting plate; the damper assembly comprises a supporting seat which is connected with the car frame in a hinge joint mode, the damper mounted with screws on the outer surface of the damper and an adjusting nut which is connected with the outer surface of the damper in a threaded mode; wherein a spring II is sleeved outside the damper in a coaxial mode, the support and the adjusting nut are respectively withheld by the two ends of the spring II, and the supporting plate is connected with one end which is far away from the supporting seat in a hinge joint mode. The motor-driven carrier connecting rod auxiliary wheel device is applicable to a motor-driven pallet truck.

Description

Electrocar connecting rod auxiliary wheel device

Technical field

The utility model relates to a kind of electrocar connecting rod auxiliary wheel device, mainly is applicable to electric pallet truck.

Background technology

The auxiliary wheel of conventional electric tray carriage, generally to be rigidly connected on vehicle frame by bolt, and can only rotate freely by 360 degree in left and right horizontal surface, there is following drawback in the auxiliary wheel of this structure: 1, auxiliary wheel adopts and is rigidly connected, for broken terrain, can not play the effect of buffering, traffic safety is had an impact; 2, adopt the general power system of tray carriage of this kind auxiliary wheel should have damping, buffer action, this will make power system complicated, and car load inside is difficult for layout, and power system is when going wrong, and maintenance is inconvenient; 3, be rigidly connected because this kind auxiliary wheel adopts, when the part foreign material such as bolt, nut were arranged on ground, auxiliary wheel easily slided jointly with its generation, the wearing and tearing of quickening auxiliary wheel.

So engendered some auxiliary wheels with recoil spring, this kind auxiliary wheel is to have increased recoil spring on the basis of above-mentioned auxiliary wheel, also there is following drawback in the auxiliary wheel of this structure: 1, when Uneven road, the recoil spring of auxiliary wheel can absorb the vibration on road surface, but due to after spring absorbs vibration, be in the elongation of decay gradually-compression link, extended driving and having vibrated, make operating personal be unfavorable for controlling, and easily increase operator's fatigue; 2, the auxiliary wheel of this kind structure although can reduce the amplitude of driving vibration, has extended vibration, increased the fugitiveness of driving, and the spring strength that generally is used on this kind auxiliary wheel is inadequate, and buffer action is not obvious, and easily damages.

Summary of the invention

The technical problems to be solved in the utility model is: provide a kind of simple in structure, electrocar connecting rod auxiliary wheel device that cost is low for the problem of above-mentioned existence, to reduce the amplitude of vibrating in traveling process, shorten simultaneously period of vibration, improve the safety and stability of driving.

The technical scheme that the utility model adopts is: electrocar connecting rod auxiliary wheel device, comprise can be in horizontal surface the auxiliary wheel that freely rotates of 360 degree, it is characterized in that: it also comprises for stay bearing plate hinged with vehicle frame and that can freely rotate around hinge-point place axis, on described stay bearing plate, be hinged with vibration damper assembly away from hinge-point one end of itself and vehicle frame, this vibration damper assembly other end and vehicle frame are hinged, and described auxiliary wheel is installed on the lower surface of this stay bearing plate; Described vibration damper assembly comprises that the bearing hinged with vehicle frame, outside face attack threaded bumper, and the adjusting nut that is connected with the bumper outer surface thread; Wherein the outer coaxial sleeve of bumper has the spring II, and this both ends of the spring withstands respectively bearing and adjusting nut, and bumper is hinged away from bearing one end and stay bearing plate.

Be provided with the spring I for the protection of bumper between described bearing and bumper.

Be equipped with on described stay bearing plate, with the hinged end of vehicle frame and can play with one the rotating shaft of rotation, this rotating shaft is outer to be equipped with for captiveing joint with vehicle frame by axle sleeve, and the permanent seat that can the phase countershaft rotates.

The beneficial effects of the utility model are: 1, auxiliary wheel is installed on vehicle frame by stay bearing plate is hinged, can fluctuate around hinge-point place axis according to the road conditions on ground, thereby improve the stationarity of driving, has increased the traveling comfort of operation.2, on stay bearing plate, away from the hinge-point one hinged vibration damper assembly of end of itself and vehicle frame, utilize the spring II to absorb vibration, and eliminate partial vibration by bumper, thereby shortened period of vibration, improved operation comfort, reduced operator's strength at repeated alternation.3, the bumper outside face has been attacked screw thread and has been connected with adjusting nut, and regulating spring II intensity, improve the stability of driving easily.4, the spring I is set between bearing and bumper, when bumper is compressed, plays buffer protection function, prevent that bumper from because vibration is too quickly, damage bumper, thus the service life of having improved bumper.

Description of drawings

Fig. 1 is constructional drawing of the present utility model.

Fig. 2 is the exploded view of vibration damper assembly in Fig. 1.

Fig. 3 is the constructional drawing in the utility model practical application.

Fig. 4 is the exploded view of Fig. 3.

The specific embodiment

As shown in Figure 1, the present embodiment comprises auxiliary wheel 1, stay bearing plate 2 and vibration damper assembly 3; Wherein auxiliary wheel 1 is installed on the lower surface of stay bearing plate 2, can freely rotate by 360 degree in horizontal surface; Wherein an end is hinged by being located thereon surperficial hinged seat and vibration damper assembly 3 for stay bearing plate 2 one ends, this vibration damper assembly other end is hinged with vehicle frame 8, simultaneously, stay bearing plate 2 other end one are shaped with the connector 7 with through hole, by bearing pin, the rotating shaft 4 that an energy rotates with stay bearing plate 2 is installed in the through hole of this connector, this rotating shaft is equipped with for the permanent seat 6 of captiveing joint with vehicle frame 8 and can phase countershaft 4 freely rotating by axle sleeve 5 outward; Installation rear bearing sheet 2 around the shaft 4 place axis, rotate with respect to vehicle frame 8, when therefore running into uneven road surface, auxiliary wheel 1 can pass through easily, and the vibration that driving produces is absorbed and eliminates by vibration damper assembly 3, shorten the cycle of vibration, improved traveling comfort and the safety of driving.

As shown in Figure 2, bearing 3-1, the outside face that described vibration damper assembly 3 comprises and vehicle frame is hinged attacked threaded bumper 3-2, the spring I 3-3 between bearing 3-1 and bumper 3-2, and the adjusting nut 3-4 that is connected with bumper 3-2 outer surface thread; Wherein the outer coaxial sleeve of bumper 3-2 has spring II 3-5, and this both ends of the spring withstands respectively bearing 3-1 and adjusting nut 3-4, and bumper 3-2 is hinged away from bearing 3-1 one end and stay bearing plate 2.In actual the use, the adjusting of spring II 3-5 intensity can be realized according to the position that varying environment, different operating person regulate adjusting nut 3-4, to satisfy various operating mode.

In addition, this example arranges spring I 3-3 between bearing 3-1 and bumper 3-2, when bumper 3-2 is compressed, plays buffering and protective effect, prevents that bumper 3-2 from because vibration is too quickly, damage bumper 3-2, thus the service life of improving bumper 3-2.

As shown in Figure 3, Figure 4, in practical application, by bolt, permanent seat 6 is fixedly installed on vehicle frame 8, bearing 3-1 is articulated on vehicle frame 8 gets final product simultaneously; Can offer as required the hole of many group diverse locations (highly different) with hinged support 3-1 on vehicle frame 8, thereby reach the demand of regulating auxiliary wheel 1 terrain clearance, also can adopt the method to come the intensity of regulating spring II 3-5 simultaneously.

Claims

1. electrocar connecting rod auxiliary wheel device, comprise can be in horizontal surface the auxiliary wheel (1) that freely rotates of 360 degree, it is characterized in that: it also comprises for stay bearing plate (2) hinged with vehicle frame and that can freely rotate around hinge-point place axis, described stay bearing plate (2) is upper, be hinged with vibration damper assembly (3) away from hinge-point one end of itself and vehicle frame, this vibration damper assembly other end and vehicle frame are hinged, and described auxiliary wheel (1) is installed on the lower surface of this stay bearing plate; Described vibration damper assembly (3) comprises that the bearing hinged with vehicle frame (3-1), outside face attack threaded bumper (3-2), and the adjusting nut (3-4) that is connected with bumper (3-2) outer surface thread; Wherein the outer coaxial sleeve of bumper (3-2) has spring II (3-5), and this both ends of the spring withstands respectively bearing (3-1) and adjusting nut (3-4), and bumper (3-2) is hinged away from bearing (3-1) end and stay bearing plate (2).

2. electrocar connecting rod auxiliary wheel device according to claim 1, is characterized in that: be provided with the spring I (3-3) for the protection of bumper (3-2) between described bearing (3-1) and bumper (3-2).

3. electrocar connecting rod auxiliary wheel device according to claim 1 and 2, it is characterized in that: described stay bearing plate (2) is upper, be equipped with the hinged end of vehicle frame and can play with one the rotating shaft (4) of rotation, this rotating shaft is equipped with for captiveing joint with vehicle frame by axle sleeve (5) outward, and the permanent seat (6) that can phase countershaft (4) rotates.