CN203714028U

CN203714028U - Track tensioning device

Info

Publication number: CN203714028U
Application number: CN201420125867.5U
Authority: CN
Inventors: 王海芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-03-19
Filing date: 2014-03-19
Publication date: 2014-07-16
Anticipated expiration: 2024-03-19

Abstract

The utility model relates to a tensioning device, in particular to a track tensioning device. The track tensioning device comprises a tensioning rod, a first end cover, a hydraulic cylinder, a piston, a tensioning spring, a spring front seat, a screw rod, a spring rear seat, a fixed sleeve, a second end cover, a front cover and a rear cover. The hydraulic cylinder is provided with an oil injection nozzle and an oil drain nozzle, and the oil drain nozzle is provided with an oil drain screw plug in a plugging mode. The second end cover and the spring front seat are both fixedly connected with the front cover. The front cover is in sliding connection with the fixed sleeve, the rear cover is fixedly connected with the spring rear seat, and the rear cover is fixedly connected with the fixed sleeve. The tensioning spring is arranged between the spring front seat and the spring rear seat, and the hydraulic cylinder is in sliding connection with the spring front seat. The left end of the screw rod is fixedly connected with the piston, and the right end of the screw rod is in sliding connection with the spring rear seat. The first end cover, the hydraulic cylinder and the piston define a closed oil cavity together. By means of the track tensioning device, the tensioning degree of a track can be adjusted by oil filling and oil draining, the tensioning degree of the track can also be adjusted by adjusting the screw rod, adjusting is convenient, time and labor are saved, meanwhile, a buffer device is further arranged, and thus machine parts can be effectively protected.

Description

A kind of track takeup

Technical field

The utility model is related to a kind of tensioning apparatus, especially a kind of track takeup.

Background technology

The effect of tensioning apparatus is to ensure that crawler belt has enough rates of tension, reduce coming off in tramp and winding process of the crawler belt in walking.Crawler belt is excessively loose, and in addition to causing acutely bounce, increase abrasion, derailment occurring is easily caused again；Crawler belt is excessively tensioned, and can add the abrasion of track pin and guide, therefore, and crawler belt must have suitable rate of tension.Current tensioning apparatus adjusts trouble mostly or controlled variable is smaller, while without buffer unit.

Utility model content

The utility model aims to solve the problem that above mentioned problem there is provided a kind of track takeup, and it both can be adjusted to track tension by filling, draining the oil or realize the function by adjusting screw rod, while it has buffer unit, the technical scheme that it is used is as follows：

A kind of track takeup, including nutted rod, first end cap, hydraulic cylinder, piston, tensioning spring, spring front stall, screw rod, spring back seat, fixes sleeve, second end cap, protecgulum and bonnet, there is pump nozzle and mouth of draining the oil on the hydraulic cylinder, closure has purge cock on the mouth of draining the oil, second end cap and spring front stall with protecgulum Joint, the protecgulum is threaded onto in fixes sleeve and is slidably connected with fixes sleeve, the bonnet and spring back seat Joint, the bonnet be threaded onto in fixes sleeve and with fixes sleeve Joint, the tensioning spring is arranged between spring front stall and spring back seat, the hydraulic cylinder is slidably connected with spring front stall, the screw rod left end and piston Joint, right-hand member is slidably connected with spring back seat；First end cap, hydraulic cylinder and piston surround the oil pocket of a closing jointly, and the pump nozzle and mouth of draining the oil are connected with oil pocket.

On the basis of above-mentioned technical proposal, the screw rod is threadedly coupled with spring front stall, and the right-hand member of the screw rod is formed with adjustment screw head.

On the basis of above-mentioned technical proposal, also including protective cover, the protective cover and bonnet detachable connection, the adjustment screw head are located in the cavity that protective cover and spring back seat are surrounded.

Compared with prior art, the utility model has the following advantages that：Both track tension can be adjusted by filling, draining the oil or the function is realized by adjusting screw rod, it is easy to adjust, it is time saving and energy saving, while it has buffer unit, effectively protect parts.

Brief description of the drawings

Fig. 1：Cross-sectional view of the present utility model；

Fig. 2：A-A is to sectional view in Fig. 1；

Embodiment

The utility model is described in further detail with example below in conjunction with the accompanying drawings：

Explanation is needed exist for, following noun of locality left and rights are defined on the basis of the view shown in Fig. 1, it will be appreciated that the use of the noun of locality should not limit the protection domain that the application is asked.As depicted in figs. 1 and 2, a kind of track takeup of the present utility model, including nutted rod 1, first end cap 2, hydraulic cylinder 3, piston 4, tensioning spring 5, spring front stall 6, screw rod 7, spring back seat 8, fixes sleeve 9, second end cap 10, protecgulum 11 and bonnet 17, there is pump nozzle 12 and mouth of draining the oil on the hydraulic cylinder 3, closure has purge cock 14 on the mouth of draining the oil, second end cap 10 and spring front stall 6 with the Joint of protecgulum 11, the protecgulum 11 is threaded onto in fixes sleeve 9 and is slidably connected with fixes sleeve 9, the bonnet 17 and the Joint of spring back seat 8, the bonnet 17 be threaded onto in fixes sleeve 9 and with the Joint of fixes sleeve 9, the tensioning spring 5 is arranged between spring front stall 6 and spring back seat 8, the hydraulic cylinder 3 is slidably connected with spring front stall 6, the left end of screw rod 7 and the Joint of piston 4, right-hand member is slidably connected with spring back seat 8；First end cap 2, hydraulic cylinder 3 and piston 4 surround the oil pocket 18 of a closing jointly, and the pump nozzle 12 and mouth of draining the oil are connected with oil pocket 18.

When needing tensioned tracks, only it need to the left slide by the oiling into the oil pocket 18 of closing of pump nozzle 12, oil pressure increase, hydraulic cylinder 3 and pass through nutted rod 1 and tensioning wheel（Not shown in figure）Make crawler tensioning, if crawler belt tension, can be drained the oil by mouth of draining the oil can make slack of track, time saving and energy saving.

When running into barrier in machinery traveling and impacted tensioning wheel; due to the Incoercibility of liquid, impulsive force can be passed on tensioning spring 5 by nutted rod 1, piston 4, screw rod 7 and spring front stall 6, compress tensioning spring 5; moved after tensioning wheel, so that parts are protected.

It is preferred that, the screw rod 7 is threadedly coupled with spring front stall 6, and the right-hand member of the screw rod 7 is formed with adjustment screw head 15.

It is preferred that, also including protective cover 16, the protective cover 16 and the detachable connection of bonnet 17, the adjustment screw head 15 are located in the cavity that protective cover 16 and spring back seat 8 are surrounded.

By the adjusting piston 4 of screw rod 7 position relative with hydraulic cylinder 3, so as to adjust nutted rod 1.

The utility model is illustrated by way of example above, but the utility model is not limited to above-mentioned specific embodiment, and all any change done based on the utility model or modification belong to the claimed scope of the utility model.

Claims

1. a kind of track takeup, it is characterised in that：Including nutted rod, first end cap, hydraulic cylinder, piston, tensioning spring, spring front stall, screw rod, spring back seat, fixes sleeve, second end cap, protecgulum and bonnet, there is pump nozzle and mouth of draining the oil on the hydraulic cylinder, closure has purge cock on the mouth of draining the oil, second end cap and spring front stall with protecgulum Joint, the protecgulum is threaded onto in fixes sleeve and is slidably connected with fixes sleeve, the bonnet and spring back seat Joint, the bonnet be threaded onto in fixes sleeve and with fixes sleeve Joint, the tensioning spring is arranged between spring front stall and spring back seat, the hydraulic cylinder is slidably connected with spring front stall, the screw rod left end and piston Joint, right-hand member is slidably connected with spring back seat；First end cap, hydraulic cylinder and piston surround the oil pocket of a closing jointly, and the pump nozzle and mouth of draining the oil are connected with oil pocket.

2. a kind of track takeup according to claim 1, it is characterised in that：The screw rod is threadedly coupled with spring front stall, and the right-hand member of the screw rod is formed with adjustment screw head.

3. a kind of track takeup according to claim 2, it is characterised in that：Also include protective cover, the protective cover and bonnet detachable connection, the adjustment screw head is located in the cavity that protective cover and spring back seat are surrounded.