NZ751663B2 - Crane counterweight and suspension - Google Patents

Crane counterweight and suspension

Info

Publication number
NZ751663B2
NZ751663B2 NZ751663A NZ75166317A NZ751663B2 NZ 751663 B2 NZ751663 B2 NZ 751663B2 NZ 751663 A NZ751663 A NZ 751663A NZ 75166317 A NZ75166317 A NZ 75166317A NZ 751663 B2 NZ751663 B2 NZ 751663B2
Authority
NZ
New Zealand
Prior art keywords
crane
pick
carry
rear body
counterweight
Prior art date
Application number
NZ751663A
Other versions
NZ751663A (en
Inventor
Dallas Elvery
Original Assignee
Terex Australia Pty Ltd
Filing date
Publication date
Application filed by Terex Australia Pty Ltd filed Critical Terex Australia Pty Ltd
Priority to NZ792281A priority Critical patent/NZ792281B2/en
Priority claimed from PCT/AU2017/050999 external-priority patent/WO2018049475A1/en
Publication of NZ751663A publication Critical patent/NZ751663A/en
Publication of NZ751663B2 publication Critical patent/NZ751663B2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/005—Suspension locking arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/47—Means for retracting the suspension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/06—Cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/60—Load
    • B60G2400/61—Load distribution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D53/00—Tractor-trailer combinations; Road trains
    • B62D53/02—Tractor-trailer combinations; Road trains comprising a uniaxle tractor unit and a uniaxle trailer unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D61/00—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern
    • B62D61/12—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with variable number of ground engaging wheels, e.g. with some wheels arranged higher than others, or with retractable wheels
    • B62D61/125—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with variable number of ground engaging wheels, e.g. with some wheels arranged higher than others, or with retractable wheels the retractable wheel being a part of a set of tandem wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples

Abstract

Pick and carry crane is a type of crane that is able to move while it has a load suspended from a boom of the crane. As the rated capacity of a pick and carry crane increases, its susceptibility to sideways tipping generally also increases. Crane tipping and thus crane toppling presents occupation as well as public health and safety issues. Pick and carry cranes need to travel with a load, this means that outriggers typically cannot be used. A pick and carry crane comprising a front body that defines a front part of the crane. The front body pivotably connected via a pivot arrangement to a rear body of the crane. The crane defines a side tippling line when the front body has been pivoted relative to the rear body about the pivot arrangement. The side tipping line defined as an imaginary longitudinal axis that extends between a point at which the front body contacts the ground to a point at which the rear body contacts the ground, being the points about which the crane may topple. The crane also comprises a first counterweight mounted with respect to the crane and arranged to move with respect to the side tipping line so as to maintain a counteracting side tipping moment above a threshold value when the crane is lifting and/or carrying a load. The threshold value corresponds to a side tipping moment that causes the crane to topple sideways about the side tipping line.

Claims (11)

Claims
1. A pick and carry crane, comprising: a front body that defines a front part of the crane, the front body pivotally connected 5 via a pivot arrangement to a rear body of the crane; the crane defines a side g line when the front body has been pivoted relative to the rear body about the pivot arrangement, the side tipping line defined as an ary longitudinal axis that extends between a point at which the front body ts the ground to a point at which the rear body contacts the ground, being the points about which the crane 10 may topple; and a first counterweight d with respect to the crane and arranged to move with respect to the side tipping line so as to maintain a counteracting side tipping moment above a threshold value when the crane is lifting and/or carrying a load, wherein the threshold value corresponds to a side tipping moment that causes the crane to topple sideways about 15 the side tipping line.
2. A pick and carry crane as claimed in claim 1, r comprising a boom support arm for supporting a boom of the crane, the boom support arm being arranged at one end of the front body, wherein the first counterweight is mounted to an opposite end of the boom support arm and so as to be located rearwardly of the pivot arrangement. 20
3. A pick and carry crane as claimed in claim 1, further comprising a moveable frame that is mounted to the crane for movement with respect to the side tipping line, wherein the first counterweight is mounted to the moveable frame such that it can be moved laterally therefrom so as to maintain the counteracting side tipping moment above the threshold value. 25
4. A pick and carry crane as claimed in any one of the preceding , n the rear body is configured to act as a counterweight.
5. A pick and carry crane as claimed in any one of the preceding claims, further comprising a second counterweight that is mounted with respect to the rear body of the crane. 30
6. A pick and carry crane as claimed in claim 5, wherein the second counterweight is d to one of: a. a rearward end of the rear body of the crane; b. a moveable frame that is mounted with respect to the rear body of the crane, the ng to the moveable frame being such that the second counterweight can be located at the rearward end of the rear body of the crane or be moved laterally rom.
7. A pick and carry crane as claimed in any one of the preceding claims, wherein the 5 crane is configured to have a maximum rated capacity of at least 35 .
8. A pick and carry crane as claimed in any one of claims 1 to 7, wherein the crane is configured to have a maximum rated capacity of at least 40 tonnes
9. A pick and carry crane as claimed in any one of the preceding claims, wherein the front body is pivotally connected to the rear body to define the crane as an lated pick 10 and carry crane, and wherein wheels for the crane each comprise rubber tyres.
10. A pick and carry crane as claimed in any one of the preceding claims comprising steering for at least one set of rear wheels.
11. The pick and carry crane according to claim 10 wherein the steering is for a rearmost set of wheels. F239". W0 49475 959". W0 49475
NZ751663A 2017-09-14 Crane counterweight and suspension NZ751663B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NZ792281A NZ792281B2 (en) 2017-09-14 Crane Counterweight and Suspension

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2016903705A AU2016903705A0 (en) 2016-09-15 Crane Counterweight and Suspension
PCT/AU2017/050999 WO2018049475A1 (en) 2016-09-15 2017-09-14 Crane counterweight and suspension

Publications (2)

Publication Number Publication Date
NZ751663A NZ751663A (en) 2024-04-26
NZ751663B2 true NZ751663B2 (en) 2024-07-30

Family

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