WO2015137908A1 - Independent axes jointing for a sheave block - Google Patents
Independent axes jointing for a sheave block Download PDFInfo
- Publication number
- WO2015137908A1 WO2015137908A1 PCT/US2014/022460 US2014022460W WO2015137908A1 WO 2015137908 A1 WO2015137908 A1 WO 2015137908A1 US 2014022460 W US2014022460 W US 2014022460W WO 2015137908 A1 WO2015137908 A1 WO 2015137908A1
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- WO
- WIPO (PCT)
- Prior art keywords
- sheave block
- boom
- joint
- flanges
- construction machine
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
-
- 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
- B66C23/64—Jibs
- B66C23/66—Outer or upper end constructions
Definitions
- the present invention relates to a construction machine, in particular, relates to a construction machine having independent axes joint for a sheave block that can prevent interference between a boom and the sheave block.
- a construction machine, particularly large-sized excavator or pipelayer are provided with a bucket, container or other type of implement for digging, lifting, carrying and/or transporting a load.
- a pipelayer has a load arm unit for raising and lowering an implement, such as a boom.
- a pipelayer is composed of a crawler-type tractor, a boom supported by the chassis frame of the tractor so as to be freely raised and lowered, a sheave block attached to the distal end of the boom, a winch mounted on the tractor; and a hook block suspended from a wire rope that runs from the winch so as to be wound over the sheave block.
- a hoisted load (a short pipe, long pipe or the like) hung by the hook block with the help of a binding tool can be raised and lowered by winding and unwinding the wire rope with the winch.
- the present disclosure discloses a construction machine for lifting heavy weights with wires comprising, a lower vehicle body having at least two tracks; an upper body mounted on said lower vehicle body so as to turn around freely around the lower vehicle body; a driver's cab mounted on said lower vehicle body; a boom pivotally mounted to said machine; a sheave block rotatably and tiltingly connected to said boom by a joint member where the joint member has two independent axes that are spaced apart from each other to connect the sheave block to the boom; a winch member mounted on the upper body; and a hook block hung by a wire rope that is paid out from the winch member and wound around the sheave block.
- the boom has an opened center portion for a clear view, and a joint portion at the end of the boom where the sheave block is connected.
- the boom has a concaved room at the joint portion in which the sheave block is tiltingly secured with the joint member.
- the joint member is a triple link joint having: a center flange and at least two side flanges connected to each other by at least one part of each flanges and each having two holes for a joint mounting pin and a sheave block connection pin; the joint mounting pin that penetrates said flanges by upper holes and rotatably connected to the boom; and the sheave block connection pin penetrates said flanges by lower holes and rotatably secured with the sheave block.
- the sheave block has a head portion where at least one flange with a hole or a link to be connected with the sheave block connection pin of the joint member at the top; and at least one pulley receiving room on the lower end of the block.
- the head portion of the sheave block has two flanges spaced apart to each other while each having a hole to be connected with the sheave block connection pin of the joint member at the top.
- the present disclosure discloses a pipelayer comprising: a lower vehicle body having at least two tracks; an upper body mounted on said lower vehicle body so as to turn around freely around the lower vehicle body; a driver's cab mounted on said lower vehicle body; a boom pivotally mounted to the upper body; a sheave block rotatably and tiltingly connected to said boom by a triple link joint where the triple link joint has two independent axes that are spaced apart from each other to connect the sheave block to the boom wherein the sheave block having: a center flange and at least two side flanges connected to each other by at least one part of each flanges and each having two holes for a joint mounting pin and a sheave block connection pin; the joint mounting pin that penetrates said flanges and rotatably connected to the boom; and
- the sheave block connection pin penetrates said flanges and rotatably secured with the sheave block; a winch member mounted on the upper body; and a hook block hung by a wire rope that is paid out from the winch member and wound around the sheave block.
- the boom has an opened center portion for a clear view, and a joint portion at the distal end of the boom where the sheave block is connected.
- the boom has a concaved room at the joint portion in which the sheave block is tiltingly secured with the triple link joint.
- the sheave block has a head portion where at least one flange with a hole or a link to be connected with the sheave block connection pin of the triple link joint at the top; and at least one pulley receiving room on the lower end of the sheave block.
- the head portion of the sheave block has two flanges spaced apart to each other while each having a hole to be rotatably connected with the sheave block connection pin of the triple link joint at the top.
- the present disclosure discloses a construction machine for lifting heavy weights with wires comprising: a boom secured to the body of the construction machine or a nearby structure and has an opened center portion for a clear view, and a joint portion at the distal end of the boom where the sheave block is connected; a sheave block rotatably and tiltingly connected to said boom by a triple link joint where the triple link joint has two independent axes that are spaced apart from each other to connect the sheave block to the boom wherein the sheave block having: a center flange and at least two side flanges connected to each other by at least one part of each flanges and each having two holes for a joint mounting pin and a sheave block connection pin; the joint mounting pin that penetrates said flanges and rotatably connected to the boom; and the sheave block connection pin penetrates said flanges and rotatably secured with the sheave block; a winch member to wind or
- the boom has a concaved room at the joint portion in which the sheave block is tiltingly secured with the triple link joint.
- the sheave block has a head portion where at least one flange with a hole or a link to be connected with the sheave block connection pin of the triple link joint at the top; and at least one pulley receiving room on the lower end of the block.
- the head portion of the sheave block has two flanges spaced apart to each other while each having a hole to be rotatably connected with the sheave block connection pin of the triple link joint at the top.
- FIG. 1 illustrates a front view of a pipelayer as an example of a construction machine according to prior arts.
- FIG. 2 illustrates an enlarged perspective view of a joint portion of the boom with the sheave block attached to it, of the pipelayer as an example of a construction machine according to prior arts.
- Fig. 3 illustrates an enlarged perspective view of the joint portion of the boom with the sheave block attached to it, of the pipelayer as an example of a construction machine according to one disclosure of the present invention.
- Fig. 4 illustrates a side view of the joint portion of the boom with the sheave block attached to it, of the pipelayer as an example of a construction machine according to one disclosure of the present invention.
- the pipelayer 1 is typically used for the construction of underground pipelines which transport hydrocarbons, such as natural gas or gasoline. Typical operation of the pipelayer includes raising, carrying, and lowering heavy pipes.
- the pipelayer 1 is a crawler or tractor-type vehicle having a maneuverable boom 106 mounted on the vehicle.
- the pipelayer 1 usually consists of a lower vehicle body 100 with two tracks 100a and 100b, and an upper body 102 rotatably mounted on the lower vehicle body, a cab 104 for an operator which is also mounted on the lower vehicle body, and a boom 106 supported by the chassis frame 108 of the lower vehicle body 100 so as to be freely raised and lowered.
- a sheave block 1 10 is attached to the distal end of the boom 106.
- a winch (not shown) is mounted on the tractor and a hook block 1 12 is suspended from wires rope that run from the winch so as to be wound over the sheave block 1 10.
- a hoisted load (a short pipe, long pipe or the like) hung by the hook block 1 12 and hook 1 12a with the help of a binding tool can be raised and lowered by winding and unwinding the wire rope with the winch.
- the boom 106 is made of two beams 106a to have a center opening 106d for operability and better view of a trench.
- the distal ends of the two beams 106a are connected at the end of the boom 106 to constitute a joint portion 106b.
- the sheave block 1 10 is connected to the boom 106 by a connector 1 14 which connects the sheave block 1 10 with the boom 106 at the parallel direction of the boom 106.
- a couple of pulleys 1 18 are rotatably connected with the sheave block 1 10 by a sheave block shaft 1 10a.
- Wires 120 will be hung to the pulleys 1 18 of the sheave block 1 10.
- Wires 120 used to lift heavy weights are usually contain metal parts in them so the sheave block 1 10 has to be parallel with the wires 120 so as to prevent damages to the wires 120 and guarantee a proper operation for the pipelayer 1 .
- Wires 120 of the sheave block 1 10 will be also wound around the hook block 1 12 (as shown in Fig. 1 ).
- the sheave block 1 10 is tiltingly and rotatably connected with the boom 106 by the connector 1 14 at the head portion of the sheave block 1 10.
- This causes a problem when the pipelayer 1 is working on a slope or the boom 106 has to be raised almost vertical for more height from the ground.
- the sheave block 1 10 will be tilting in left and right direction in this figure so as to maintain the pulleys 1 18 in a parallel position to wires 120 but the side of the sheave block 1 10 will interfere with the beams 106a of the boom 106. In this case, the sheave block 1 10 cannot guarantee the pulleys 1 18 parallel with the wires 120 due to the interference.
- Wires 120 can be damaged and the operability or the safety of the operation will be seriously challenged.
- This type of problem may be fixed with a totally new design of the boom structure but construction machine are very expensive and has to be operated constantly thus an easy solution for this problem while using the most part of the conventional pipelayer 1 is required.
- a triple link joint 210 will ensure the boom 200 and sheave block 220 connected to each other having a certain distance to each other so that interference would not be occurred even though the boom 200 has to be raised near the vertical level or the machine 1 is working on a steep slope.
- the boom 200 has two beams 106a as shown in Fig.2 but any type of boom that has interference problem with a sheave block 220 can adopt the triple link joint 210 structure.
- the boom 200 does not have to have two beams 106a to utilize this disclosure.
- the boom 200 also has a concaved room 210 at the joint portion 202 in which the sheave block 220 is tiltingly secured with the triple link joint 210.
- this feature is not a necessary feature as well.
- the boom 200 can be designed in any way and the triple link joint 210 of this disclosure can be utilized if there is an interference problem due to lack of some distance.
- the triple link joint 210 has two rotating axes where the first one
- the triple link joint 210 has three flanges 212,
- the triple link joint 210 provides two distanced independent axes of rotation 217, 218 for the boom 200 and the sheave block 220 rather than it has three flanges 212, 214, 216.
- the triple link joint 210 has a center flange 214 and at least two side flanges 212, 216 connected to each other by at least one part of each flanges 212, 214, 216 and each having two holes 212a, 212b, 214a, 214b, 216a, 216b for a joint mounting pin 217 and a sheave block connection pin 218.
- the joint mounting pin 217 penetrates all of flanges 212, 214, 216 by upper holes 212a, 214a, and 216a and rotatably connected to the boom 200.
- the sheave block connection pin 218 penetrates all of flanges 212, 214, 216 by lower holes 212b, 214b, and 216b and rotatably secured with the sheave block 220 by the head portion 222a of the sheave block 220.
- the pulleys 230 will be rotatably mounted in the sheave block 220.
- the sheave block 220 has a head portion 222a where at least one flange with a hole or a link is located to be rotatably bconnected with the sheave block connection pin 218 of the triple link joint 210 at the top and at least one pulley receiving room on the lower end of the block 220 which will be rotatably coupled with the sheave block shaft 224.
- the shape of the sheave block 220 does not have to be changed in any way for this disclosure since triple link joint 210 can be used with conventional sheave block structure.
- the present disclosure provides easy and quick method to solve interference problem between a boom and a sheave block. It is also possible that the triple link joint is replaced with the conventional one when more height from the ground is needed since it is fitted to a conventional sheave block.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
A construction machine for lifting heavy weights with wires is disclosed having a lower vehicle body having at least two tracks, an upper body mounted on said lower vehicle body so as to turn around freely around the lower vehicle body, a driver's cab mounted on said lower vehicle body, a boom pivotally mounted to said machine, a sheave block rotatably and tiltingly connected to said boom by a joint member where the triple link joint has two independent axes that are spaced apart from each other to connect the sheave block to the boom, a winch member mounted on the upper body, and a hook block hung by a wire rope that is paid out from the winch member and wound around the sheave block.
Description
INDEPENDENT AXES JOINTING FOR A SHEAVE BLOCK
TECHNICAL FIELD
[0001] The present invention relates to a construction machine, in particular, relates to a construction machine having independent axes joint for a sheave block that can prevent interference between a boom and the sheave block. BACKGROUND OF THE INVENTION
[0002] A construction machine, particularly large-sized excavator or pipelayer are provided with a bucket, container or other type of implement for digging, lifting, carrying and/or transporting a load. For example, a pipelayer has a load arm unit for raising and lowering an implement, such as a boom. A pipelayer is composed of a crawler-type tractor, a boom supported by the chassis frame of the tractor so as to be freely raised and lowered, a sheave block attached to the distal end of the boom, a winch mounted on the tractor; and a hook block suspended from a wire rope that runs from the winch so as to be wound over the sheave block. A hoisted load (a short pipe, long pipe or the like) hung by the hook block with the help of a binding tool can be raised and lowered by winding and unwinding the wire rope with the winch.
[0003] When a pipelayer is working on a slope, the pulleys in the sheave block must remain parallel to metal wire ropes, or else the metal wire may climb the pulley and cause damages. When the pipelayer is working on a steep slope or the boom has to be raised close to vertical level, the sheave block interferes with the boom since the rotational axis of the sheave block is parallel to the boom. Then, the sheave block cannot tilt left and right to keep the pulley in line with the wires since the boom structure and the sheave block interferes with each other.
SUMMARY OF THE INVENTION
[0004] In order to achieve the aforementioned objects, the present invention employs the following arrangement. According to one aspect of the
present invention, the present disclosure discloses a construction machine for lifting heavy weights with wires comprising, a lower vehicle body having at least two tracks; an upper body mounted on said lower vehicle body so as to turn around freely around the lower vehicle body; a driver's cab mounted on said lower vehicle body; a boom pivotally mounted to said machine; a sheave block rotatably and tiltingly connected to said boom by a joint member where the joint member has two independent axes that are spaced apart from each other to connect the sheave block to the boom; a winch member mounted on the upper body; and a hook block hung by a wire rope that is paid out from the winch member and wound around the sheave block.
[0005] It is preferable that the boom has an opened center portion for a clear view, and a joint portion at the end of the boom where the sheave block is connected.
[0006] It is yet preferable that the boom has a concaved room at the joint portion in which the sheave block is tiltingly secured with the joint member.
[0007] It is also preferable that the joint member is a triple link joint having: a center flange and at least two side flanges connected to each other by at least one part of each flanges and each having two holes for a joint mounting pin and a sheave block connection pin; the joint mounting pin that penetrates said flanges by upper holes and rotatably connected to the boom; and the sheave block connection pin penetrates said flanges by lower holes and rotatably secured with the sheave block.
[0008] It is yet also preferable that the sheave block has a head portion where at least one flange with a hole or a link to be connected with the sheave block connection pin of the joint member at the top; and at least one pulley receiving room on the lower end of the block.
[0009] It is yet preferable that the head portion of the sheave block has two flanges spaced apart to each other while each having a hole to be connected with the sheave block connection pin of the joint member at the top.
[0010] According to another aspect of the present invention, the present disclosure discloses a pipelayer comprising: a lower vehicle body having at least two tracks; an upper body mounted on said lower vehicle body so as to turn around freely around the lower vehicle body; a driver's cab mounted on said
lower vehicle body; a boom pivotally mounted to the upper body; a sheave block rotatably and tiltingly connected to said boom by a triple link joint where the triple link joint has two independent axes that are spaced apart from each other to connect the sheave block to the boom wherein the sheave block having: a center flange and at least two side flanges connected to each other by at least one part of each flanges and each having two holes for a joint mounting pin and a sheave block connection pin; the joint mounting pin that penetrates said flanges and rotatably connected to the boom; and
the sheave block connection pin penetrates said flanges and rotatably secured with the sheave block; a winch member mounted on the upper body; and a hook block hung by a wire rope that is paid out from the winch member and wound around the sheave block.
[0011] It is also preferable that the boom has an opened center portion for a clear view, and a joint portion at the distal end of the boom where the sheave block is connected.
[0012] It is also preferable that the boom has a concaved room at the joint portion in which the sheave block is tiltingly secured with the triple link joint.
[0013] It is also preferable that the sheave block has a head portion where at least one flange with a hole or a link to be connected with the sheave block connection pin of the triple link joint at the top; and at least one pulley receiving room on the lower end of the sheave block.
[0014] It is also preferable that the head portion of the sheave block has two flanges spaced apart to each other while each having a hole to be rotatably connected with the sheave block connection pin of the triple link joint at the top.
[0015] According to yet another aspect of the present invention, the present disclosure discloses a construction machine for lifting heavy weights with wires comprising: a boom secured to the body of the construction machine or a nearby structure and has an opened center portion for a clear view, and a joint portion at the distal end of the boom where the sheave block is connected; a sheave block rotatably and tiltingly connected to said boom by a triple link joint where the triple link joint has two independent axes that are spaced apart from each other to connect the sheave block to the boom wherein the sheave block having: a center flange and at least two side flanges connected to each other by
at least one part of each flanges and each having two holes for a joint mounting pin and a sheave block connection pin; the joint mounting pin that penetrates said flanges and rotatably connected to the boom; and the sheave block connection pin penetrates said flanges and rotatably secured with the sheave block; a winch member to wind or unwind the wires; and a hook block hung by a wire rope that is paid out from the winch member and wound around the sheave block.
[0016] It is also preferable that the boom has a concaved room at the joint portion in which the sheave block is tiltingly secured with the triple link joint.
[0017] It is yet preferable that the sheave block has a head portion where at least one flange with a hole or a link to be connected with the sheave block connection pin of the triple link joint at the top; and at least one pulley receiving room on the lower end of the block.
[0018] It is also preferable that the head portion of the sheave block has two flanges spaced apart to each other while each having a hole to be rotatably connected with the sheave block connection pin of the triple link joint at the top.
BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Fig. 1 illustrates a front view of a pipelayer as an example of a construction machine according to prior arts.
[0020] Fig. 2 illustrates an enlarged perspective view of a joint portion of the boom with the sheave block attached to it, of the pipelayer as an example of a construction machine according to prior arts.
[0021] Fig. 3 illustrates an enlarged perspective view of the joint portion of the boom with the sheave block attached to it, of the pipelayer as an example of a construction machine according to one disclosure of the present invention.
[0022] Fig. 4 illustrates a side view of the joint portion of the boom with the sheave block attached to it, of the pipelayer as an example of a construction machine according to one disclosure of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0023] While this invention is illustrated and described in a preferred embodiment, the device may be produced in many different configurations,
forms and materials. There is depicted in the drawings, and will hereinafter be described in detail, a preferred embodiment of the invention, with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and the associated functional specifications for its construction and is not intended to limit the invention to the embodiment illustrated. Those skilled in the art will envision many other possible variations within the scope of the present invention.
[0024] Referring FIG. 1 , a prior art pipelayer is explained. The pipelayer 1 is typically used for the construction of underground pipelines which transport hydrocarbons, such as natural gas or gasoline. Typical operation of the pipelayer includes raising, carrying, and lowering heavy pipes. The pipelayer 1 is a crawler or tractor-type vehicle having a maneuverable boom 106 mounted on the vehicle. The pipelayer 1 usually consists of a lower vehicle body 100 with two tracks 100a and 100b, and an upper body 102 rotatably mounted on the lower vehicle body, a cab 104 for an operator which is also mounted on the lower vehicle body, and a boom 106 supported by the chassis frame 108 of the lower vehicle body 100 so as to be freely raised and lowered. A sheave block 1 10 is attached to the distal end of the boom 106. A winch (not shown) is mounted on the tractor and a hook block 1 12 is suspended from wires rope that run from the winch so as to be wound over the sheave block 1 10. A hoisted load (a short pipe, long pipe or the like) hung by the hook block 1 12 and hook 1 12a with the help of a binding tool can be raised and lowered by winding and unwinding the wire rope with the winch.
[0025] Referring to Fig. 2, a conventional pipelayer with a boom and the sheave block is explained. In this disclosure, the boom 106 is made of two beams 106a to have a center opening 106d for operability and better view of a trench. The distal ends of the two beams 106a are connected at the end of the boom 106 to constitute a joint portion 106b. There is a concaved room 106c at the joint portion 106b to hold the sheave block 1 10 in it. The sheave block 1 10 is connected to the boom 106 by a connector 1 14 which connects the sheave block 1 10 with the boom 106 at the parallel direction of the boom 106. In other words, the rotating shaft 1 14a of the connector 1 14 is parallel to the boom 106.
[0026] A couple of pulleys 1 18 are rotatably connected with the sheave block 1 10 by a sheave block shaft 1 10a. Wires 120 will be hung to the pulleys 1 18 of the sheave block 1 10. Wires 120 used to lift heavy weights are usually contain metal parts in them so the sheave block 1 10 has to be parallel with the wires 120 so as to prevent damages to the wires 120 and guarantee a proper operation for the pipelayer 1 . Wires 120 of the sheave block 1 10 will be also wound around the hook block 1 12 (as shown in Fig. 1 ).
[0027] The sheave block 1 10 is tiltingly and rotatably connected with the boom 106 by the connector 1 14 at the head portion of the sheave block 1 10. However, this causes a problem when the pipelayer 1 is working on a slope or the boom 106 has to be raised almost vertical for more height from the ground. The sheave block 1 10 will be tilting in left and right direction in this figure so as to maintain the pulleys 1 18 in a parallel position to wires 120 but the side of the sheave block 1 10 will interfere with the beams 106a of the boom 106. In this case, the sheave block 1 10 cannot guarantee the pulleys 1 18 parallel with the wires 120 due to the interference. Wires 120 can be damaged and the operability or the safety of the operation will be seriously challenged. This type of problem may be fixed with a totally new design of the boom structure but construction machine are very expensive and has to be operated constantly thus an easy solution for this problem while using the most part of the conventional pipelayer 1 is required.
[0028] Referring to Figs. 3 and 4, a construction machine having a sheave block attached with a triple link joint according to one embodiment of the present invention is explained. To solve the above mentioned problem, a triple link joint 210 will ensure the boom 200 and sheave block 220 connected to each other having a certain distance to each other so that interference would not be occurred even though the boom 200 has to be raised near the vertical level or the machine 1 is working on a steep slope.
[0029] In this disclosure, the boom 200 has two beams 106a as shown in Fig.2 but any type of boom that has interference problem with a sheave block 220 can adopt the triple link joint 210 structure. The boom 200 does not have to have two beams 106a to utilize this disclosure. The boom 200 also has a concaved room 210 at the joint portion 202 in which the sheave block 220 is
tiltingly secured with the triple link joint 210. However, this feature is not a necessary feature as well. In other words, the boom 200 can be designed in any way and the triple link joint 210 of this disclosure can be utilized if there is an interference problem due to lack of some distance.
[0030] The triple link joint 210 has two rotating axes where the first one
217 connects with the boom 200 and the other one 218 connects with the sheave block 220. The two rotating axes 217, 218 of the triple link joint 210 gives some distance between the boom 200 and the sheave block 220 thus the sheave block 220 can tilt and rotate around the boom 200 without interference. Wires would not be damaged due to interference between the boom 200 and the sheave block 220.
[0031] In this disclosure, the triple link joint 210 has three flanges 212,
214, 216 to securely fasten the sheave block 220 to the boom 200. However, it does not have to have three flanges if enough strength is provided to fasten the sheave block 220 to the boom 200. It is important that the triple link joint 210 provides two distanced independent axes of rotation 217, 218 for the boom 200 and the sheave block 220 rather than it has three flanges 212, 214, 216.
[0032] The triple link joint 210 has a center flange 214 and at least two side flanges 212, 216 connected to each other by at least one part of each flanges 212, 214, 216 and each having two holes 212a, 212b, 214a, 214b, 216a, 216b for a joint mounting pin 217 and a sheave block connection pin 218. The joint mounting pin 217 penetrates all of flanges 212, 214, 216 by upper holes 212a, 214a, and 216a and rotatably connected to the boom 200. The sheave block connection pin 218 penetrates all of flanges 212, 214, 216 by lower holes 212b, 214b, and 216b and rotatably secured with the sheave block 220 by the head portion 222a of the sheave block 220. The pulleys 230 will be rotatably mounted in the sheave block 220.
[0033] The sheave block 220 has a head portion 222a where at least one flange with a hole or a link is located to be rotatably bconnected with the sheave block connection pin 218 of the triple link joint 210 at the top and at least one pulley receiving room on the lower end of the block 220 which will be rotatably coupled with the sheave block shaft 224. The shape of the sheave
block 220 does not have to be changed in any way for this disclosure since triple link joint 210 can be used with conventional sheave block structure.
[0034] The present disclosure provides easy and quick method to solve interference problem between a boom and a sheave block. It is also possible that the triple link joint is replaced with the conventional one when more height from the ground is needed since it is fitted to a conventional sheave block.
[0035] The foregoing description of the embodiments of the invention has been presented for the purpose of illustration; it is not intended to be exhaustive or to limit the invention to the precise forms disclosed. Persons skilled in the relevant art can appreciate that many modifications and variations are possible in light of the above teachings. It is therefore intended that the scope of the invention be limited not by this detailed description, but rather by the claims appended hereto.
Claims
1 . A construction machine for lifting heavy weights with wires comprising: a lower vehicle body having at least two tracks;
an upper body mounted on said lower vehicle body so as to turn around freely around the lower vehicle body;
a driver's cab mounted on said lower vehicle body;
a boom pivotally mounted to said machine;
a sheave block rotatably and tiltingly connected to said boom by a joint member where the joint member has two independent axes that are spaced apart from each other to connect the sheave block to the boom;
a winch member mounted on the upper body; and
a hook block hung by a wire rope that is paid out from the winch member and wound around the sheave block.
2. A construction machine according to claim 1 , wherein the boom has an opened center portion for a clear view, and a joint portion at the end of the boom where the sheave block is connected.
3. A construction machine according to claim 2, wherein the boom has a concaved room at the joint portion in which the sheave block is tiltingly secured with the joint member.
4. A construction machine according to claim 1 , wherein the joint member is a triple link joint having:
a center flange and at least two side flanges connected to each other by at least one part of each flanges and each having two holes for a joint mounting pin and a sheave block connection pin;
the joint mounting pin that penetrates said flanges by upper holes and rotatably connected to the boom; and
the sheave block connection pin penetrates said flanges by lower holes and rotatably secured with the sheave block.
5. A construction machine according to claim 1 , wherein the sheave block has a head portion where at least one flange with a hole or a link to be connected with the sheave block connection pin of the joint member at the top; and
at least one pulley receiving room on the lower end of the block.
6. A construction machine according to claim 5, wherein the head portion of the sheave block has two flanges spaced apart to each other while each having a hole to be connected with the sheave block connection pin of the joint member at the top.
7. A pipelayer comprising:
a lower vehicle body having at least two tracks;
an upper body mounted on said lower vehicle body so as to turn around freely around the lower vehicle body;
a driver's cab mounted on said lower vehicle body;
a boom pivotally mounted to the upper body;
a sheave block rotatably and tiltingly connected to said boom by a triple link joint where the triple link joint has two independent axes that are spaced apart from each other to connect the sheave block to the boom wherein the sheave block having:
a center flange and at least two side flanges connected to each other by at least one part of each flanges and each having two holes for a joint mounting pin and a sheave block connection pin;
the joint mounting pin that penetrates said flanges and rotatably connected to the boom; and
the sheave block connection pin penetrates said flanges and rotatably secured with the sheave block;
a winch member mounted on the upper body; and
a hook block hung by a wire rope that is paid out from the winch member and wound around the sheave block.
8. A construction machine according to claim 7, wherein the boom has an opened center portion for a clear view, and a joint portion at the distal end of the boom where the sheave block is connected.
9. A construction machine according to claim 8, wherein the boom has a concaved room at the joint portion in which the sheave block is tiltingly secured with the triple link joint.
10. A construction machine according to claim 7, wherein the sheave block has a head portion where at least one flange with a hole or a link to be connected with the sheave block connection pin of the triple link joint at the top; and
at least one pulley receiving room on the lower end of the sheave block.
11 . A construction machine according to claim 10, wherein the head portion of the sheave block has two flanges spaced apart to each other while each having a hole to be rotatably connected with the sheave block connection pin of the triple link joint at the top.
12. A construction machine for lifting heavy weights with wires comprising: a boom secured to the body of the construction machine or a nearby structure and has an opened center portion for a clear view, and a joint portion at the distal end of the boom where the sheave block is connected;
a sheave block rotatably and tiltingly connected to said boom by a triple link joint where the triple link joint has two independent axes that are spaced apart from each other to connect the sheave block to the boom wherein the sheave block having:
a center flange and at least two side flanges connected to each other by at least one part of each flanges and each having two holes for a joint mounting pin and a sheave block connection pin;
the joint mounting pin that penetrates said flanges and rotatably connected to the boom; and
the sheave block connection pin penetrates said flanges and rotatably secured with the sheave block;
a winch member to wind or unwind the wires; and
a hook block hung by a wire rope that is paid out from the winch member and wound around the sheave block.
13. A construction machine according to claim 12, wherein the boom has a concaved room at the joint portion in which the sheave block is tiltingly secured with the triple link joint.
14. A construction machine according to claim 12, wherein the sheave block has a head portion where at least one flange with a hole or a link to be connected with the sheave block connection pin of the triple link joint at the top; and
at least one pulley receiving room on the lower end of the block.
15. A construction machine according to claim 14, wherein the head portion of the sheave block has two flanges spaced apart to each other while each having a hole to be rotatably connected with the sheave block connection pin of the triple link joint at the top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2014/022460 WO2015137908A1 (en) | 2014-03-10 | 2014-03-10 | Independent axes jointing for a sheave block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2014/022460 WO2015137908A1 (en) | 2014-03-10 | 2014-03-10 | Independent axes jointing for a sheave block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015137908A1 true WO2015137908A1 (en) | 2015-09-17 |
Family
ID=54072180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2014/022460 WO2015137908A1 (en) | 2014-03-10 | 2014-03-10 | Independent axes jointing for a sheave block |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2015137908A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106185715A (en) * | 2016-08-25 | 2016-12-07 | 西安睿诺新能源有限公司 | A kind of mechanical balance counter weight type aircraft service ensures hoistable platform pulley assembly |
| CN113620194A (en) * | 2021-08-23 | 2021-11-09 | 广西汉华建筑设计有限公司 | Lifting equipment |
| US11866307B2 (en) | 2022-04-26 | 2024-01-09 | Caterpillar Inc. | Configuration of a structural support for a boom of a pipelayer machine |
| USD1017647S1 (en) | 2022-04-26 | 2024-03-12 | Caterpillar Inc. | Pipelayer boom |
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| US20070290182A1 (en) * | 2004-08-02 | 2007-12-20 | Ingo Noeske | Hoisting-Cable Drive Comprising a Single Bottom-Hook Block and Two Winches |
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| US20040190995A1 (en) * | 2003-03-24 | 2004-09-30 | Komatsu Ltd. | Pipelayer |
| US20070290182A1 (en) * | 2004-08-02 | 2007-12-20 | Ingo Noeske | Hoisting-Cable Drive Comprising a Single Bottom-Hook Block and Two Winches |
| JP2008114978A (en) * | 2006-11-06 | 2008-05-22 | Kobelco Cranes Co Ltd | Mobile tower crane |
| US20100294735A1 (en) * | 2009-05-20 | 2010-11-25 | Walker Robert J | Crane Backstay Spreader |
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| CN106185715A (en) * | 2016-08-25 | 2016-12-07 | 西安睿诺新能源有限公司 | A kind of mechanical balance counter weight type aircraft service ensures hoistable platform pulley assembly |
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| US11866307B2 (en) | 2022-04-26 | 2024-01-09 | Caterpillar Inc. | Configuration of a structural support for a boom of a pipelayer machine |
| USD1017647S1 (en) | 2022-04-26 | 2024-03-12 | Caterpillar Inc. | Pipelayer boom |
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