CN210710402U - Bridge crane wire rope follow-up monitoring devices - Google Patents

Bridge crane wire rope follow-up monitoring devices Download PDF

Info

Publication number
CN210710402U
CN210710402U CN201921488650.XU CN201921488650U CN210710402U CN 210710402 U CN210710402 U CN 210710402U CN 201921488650 U CN201921488650 U CN 201921488650U CN 210710402 U CN210710402 U CN 210710402U
Authority
CN
China
Prior art keywords
wire rope
bridge crane
fixedly connected
block
wear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201921488650.XU
Other languages
Chinese (zh)
Inventor
华翔宇
杨乔
李大伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Luoyang Tst Flaw Detection Technology Co ltd
Original Assignee
Luoyang Tst Flaw Detection Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Luoyang Tst Flaw Detection Technology Co ltd filed Critical Luoyang Tst Flaw Detection Technology Co ltd
Priority to CN201921488650.XU priority Critical patent/CN210710402U/en
Application granted granted Critical
Publication of CN210710402U publication Critical patent/CN210710402U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Control And Safety Of Cranes (AREA)

Abstract

The utility model provides a bridge crane wire rope follow-up monitoring devices, bridge crane includes trolley frame and the reel of setting on trolley frame, wire rope is around establishing on the reel and downwards pass trolley frame, the device is including fixed the fixing base of trolley frame below, fixing base have connected gradually movable arm subassembly and rotating assembly, and rotating assembly fixedly connected with monitoring assembly, monitoring assembly are including the magnetization body and the sensor that set gradually, wire rope is close to magnetization body and sensor in proper order at the extension in-process. The utility model provides a bridge crane wire rope follow-up monitoring devices can realize the follow-up monitoring to wire rope along with wire rope's removal and the synchronous adjustment gesture.

Description

Bridge crane wire rope follow-up monitoring devices
Technical Field
The utility model relates to a bridge crane field, specific bridge crane wire rope follow-up monitoring devices that says so.
Background
The bridge crane is mainly used for lifting, moving and unloading and the like, and occupies an important position in industrial production and manufacturing. The steel wire rope lifted by the bridge crane is an important part and a wearing part of the crane, and the safety of the lifting steel wire rope directly influences the safety production of the bridge crane. At present, the safety of a steel wire rope of a bridge crane is ensured mainly by manual visual inspection and caliper measurement or periodic replacement, and the steel wire rope has the defects of great uncertainty, large workload, strong contingency, incapability of observing the internal condition of the steel wire rope and resource waste.
SUMMERY OF THE UTILITY MODEL
In order to solve the not enough among the prior art, the utility model provides a bridge crane wire rope follow-up monitoring devices can realize the follow-up monitoring to wire rope along with wire rope's removal and the synchronous adjustment gesture.
In order to achieve the above object, the utility model discloses a concrete scheme does: the utility model provides a bridge crane wire rope follow-up monitoring devices, bridge crane includes trolley frame and the reel of setting on trolley frame, wire rope is around establishing on the reel and downwards pass trolley frame, the device is including fixed the fixing base of trolley frame below, fixing base have connected gradually movable arm subassembly and rotating assembly, and rotating assembly fixedly connected with monitoring assembly, monitoring assembly are including the magnetization body and the sensor that set gradually, wire rope is close to magnetization body and sensor in proper order at the extension in-process.
As a preferred scheme, the movable arm assembly comprises a suspension fixing plate fixedly connected with the fixing seat, the suspension fixing plate is connected with a rotating shaft, the rotating shaft rotates around one end of the rotating shaft, the rotating shaft is rotatably connected with a sleeve welding piece, the sleeve welding piece rotates around the rotating shaft, the sleeve welding piece is rotatably connected with a near-end rotating arm, and the rotating assembly is rotatably connected with the near-end rotating arm.
As an optimal scheme, the fixing seat is fixedly connected with two mounting plates which are parallel to each other, a pin shaft penetrates between the two mounting plates, and one end of the rotating shaft is rotatably sleeved on the pin shaft.
As an optimal scheme, sleeve pipe welding spare is established including rotating the cover the epaxial sleeve pipe of commentaries on classics, the sheathed tube both ends respectively are connected with the pivot through a take shoulder oilless bush, sleeve pipe fixedly connected with extension pipe, extension pipe and sleeve pipe mutually perpendicular to fixedly connected with reinforcing plate between extension pipe and the sleeve pipe, extension pipe fixedly connected with connecting block, the near-end swinging boom is connected with the connecting block.
As an optimal scheme, the near-end swinging boom includes the near-end fixed block, has seted up the through-hole on the near-end fixed block, wears to be equipped with in the through-hole and takes shoulder ladder axle, take shoulder ladder axle with the connecting block rotates to be connected, has set gradually first footstep bearing, deep groove ball bearing and second footstep bearing between the inner wall of taking shoulder ladder axle and through-hole, and the near-end fixed block is fixed to be connected with the square steel, and square steel fixedly connected with bearing housing, rotating assembly establishes the connecting axle in the bearing housing including the cover.
As a preferred scheme, the connecting shaft is fixedly connected with a swing pipe, the swing pipe is fixedly sleeved on a center shaft, the center shaft is rotatably sleeved with two limiting plates, the monitoring assembly comprises a front end cross beam which is rotatably sleeved on the center shaft and is arranged between the two limiting plates, and the magnetizing body and the sensor are fixedly arranged on the front end cross beam.
Preferably, two guide wear-resistant bushing assemblies are fixedly arranged on the front end cross beam, the two guide wear-resistant bushing assemblies are located between the magnetizing body and the sensor, and the steel wire rope penetrates through the guide wear-resistant bushing assemblies.
As a preferred scheme, the guide wear-resistant bushing assembly comprises a cushion block fixedly arranged on the front end beam, a lower wear-resistant block is fixedly arranged on the cushion block, an upper wear-resistant block is fixedly arranged on the lower wear-resistant block, a through groove with a semicircular cross section is respectively formed in the lower wear-resistant block and the upper wear-resistant block, and a channel for the steel wire rope to penetrate through is formed by the two through grooves in a surrounding manner.
As a preferable scheme, the guide wear-resistant bushing assembly further comprises a U-shaped clamping plate, the clamping plate is fixedly connected with the upper wear-resistant block through an upper wear-resistant block fixing bolt group, and the clamping plate is fixedly connected with the front end cross beam through a clamping plate fixing bolt group.
As a preferred scheme, the cushion block is fixedly connected with the front end cross beam through a cushion block fixing bolt group, and the lower wear-resistant block is fixedly connected with the cushion block through at least one lower wear-resistant block fixing bolt.
Has the advantages that: the utility model discloses when using, wire rope at first is close to the magnetization body and is magnetized by the magnetization body, then is close to the sensor, makes the sensor can sense wire rope's the magnetic field condition, because the magnetic field condition is directly related with wire rope's shape and health status, so can acquire wire rope's magnetic field condition according to the magnetic field condition, realize the monitoring to wire rope. And, because wire rope angle and position can change in the operation process, so the utility model discloses utilize digging arm subassembly and rotating assembly to make the position, rotation angle and the every single move angle of monitoring subassembly can be along with wire rope's collision and change, avoid wire rope and monitoring subassembly to break away from, realize the follow-up monitoring to wire rope.
Drawings
FIG. 1 is a schematic view of the arrangement of a monitoring device;
FIG. 2 is a perspective view of the movable arm assembly;
FIG. 3 is a cross-sectional view of a sleeve weldment;
FIG. 4 is a front view of the proximal rotating arm;
FIG. 5 is a perspective view of the monitoring assembly;
FIG. 6 is a cross-sectional view of a pilot wear bushing assembly;
fig. 7 is a perspective view of the rotating assembly.
Description of the drawings: 1-reel, 2-trolley frame, 3-fixed seat, 4-movable arm component, 401-suspension fixed plate, 402-pin shaft, 403-rotating shaft, 404-shouldered oilless bushing, 405-extra large flat pad, 406-nut, 407-sleeve welding component, 4071-sleeve, 4072-reinforcing plate, 4073-extension pipe, 408-shouldered ladder shaft, 409-near end rotating arm, 4091-bearing sleeve, 4092-square steel, 4093-near end fixed block, 410-first thrust bearing, 411-deep groove ball bearing, 412-second thrust bearing, 413-adjusting ring, 5-monitoring component, 501-sensor, 502-guide wear-resistant bushing component, 5021-clamping plate, 5022-upper wear-resistant block fixed bolt group, 5023-upper wear-resistant block, 5024-a lower wear-resistant block, 5025-a lower wear-resistant block fixing bolt, 5026-a cushion block, 5027-a splint fixing bolt group, 5028-a cushion block fixing bolt group, 503-a front end beam, 504-a magnetizing body, 6-a rotating assembly, 601-a connecting shaft, 602-a limiting plate, 603-a middle shaft and 604-a swinging pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1 to 7, a bridge crane wire rope follow-up monitoring device, the bridge crane includes trolley frame 2 and reel 1 arranged on trolley frame 2, the wire rope winds on reel 1 and passes downwards through trolley frame 2, the device includes fixing base 3 fixedly arranged below trolley frame 2, fixing base 3 is connected with movable arm assembly 4 and rotating assembly 6 in sequence, rotating assembly 6 is fixedly connected with monitoring assembly 5, monitoring assembly 5 includes magnetizer 504 and sensor 501 arranged in sequence, the wire rope is close to magnetizer 504 and sensor 501 in sequence in the extending process.
The utility model discloses when using, wire rope at first is close to the magnetization body 504 and is magnetized by the magnetization body 504, then is close to sensor 501, makes sensor 501 can sense wire rope's the magnetic field condition, because the magnetic field condition is directly related with wire rope's shape and health status, so can acquire wire rope's the magnetic field condition according to the magnetic field condition, realizes the monitoring to wire rope. And, because wire rope angle and position can change in the operation process, so the utility model discloses utilize movable arm subassembly 4 and rotating assembly 6 to make monitoring assembly 5's position, rotation angle and every single move angle can be along with wire rope's collision and change, avoid wire rope and monitoring assembly 5 to break away from, realize the follow-up monitoring to wire rope.
Further, the movable arm assembly 4 includes a suspension fixing plate 401 fixedly connected to the fixing base 3, the suspension fixing plate 401 is connected to a rotating shaft 403, the rotating shaft 403 rotates around one end of the rotating shaft 403, a sleeve welding member 407 is rotatably connected to the rotating shaft 403, the sleeve welding member 407 rotates around the rotating shaft 403, the sleeve welding member 407 is rotatably connected to a near-end rotating arm 409, and the rotating assembly 6 is rotatably connected to the near-end rotating arm 409. Because the position of the trolley frame 2 is fixed, the position of the trolley frame 2 can be taken as a reference standard, the position of the suspension fixing plate 401 is fixed, the rotating shaft 403 can rotate around the suspension fixing plate 401, and the sleeve welding piece 407 rotates around the rotating shaft 403, so that the proximal rotating arm 409 and the rotating assembly 6 and the monitoring assembly 5 can have two degrees of freedom in two directions.
Further, the specific setting mode of the rotating shaft 403 is as follows: the fixing base 3 is fixedly connected with two parallel mounting plates, a pin 402 passes through the two mounting plates, and one end of the rotating shaft 403 is rotatably sleeved on the pin 402.
Further, sleeve pipe welding piece 407 includes that the cover is established at the epaxial sleeve 4071 of pivot 403 in the rotation, and the both ends of sleeve 4071 are connected with pivot 403 through a shouldered oilless bush 404 respectively, and sleeve 4071 fixedly connected with extension pipe 4073, extension pipe 4073 and sleeve 4071 mutually perpendicular to fixedly connected with reinforcing plate 4072 between extension pipe 4073 and the sleeve 4071, extension pipe 4073 fixedly connected with connecting block, and near-end swinging boom 409 is connected with the connecting block. The extension pipe 4073 can lengthen the distance between near-end swinging boom 409 and the pivot 403, enlarges the home range of near-end swinging boom 409, avoids colliding with pivot 403, according to actual installation demand, can also ensure through the length that changes extension pipe 4073 that monitoring subassembly 5 can monitor the wire rope. The reinforcement plate 4072 serves to reinforce the strength of the connection between the sleeve 4071 and the extension tube 4073, extending the service life of the sleeve weld 407.
Further, the end of the rotating shaft 403 away from the suspension fixing plate 401 is provided with a thread and is sleeved with a nut 406 in a matching manner, an extra large flat pad 405 is arranged between the nut 406 and the sleeve 4071, and the height of the sleeve welding piece 407 can be fixed by rotating the nut 406 to move on the thread part.
Further, the near-end rotating arm 409 comprises a near-end fixing block 4093, a through hole is formed in the near-end fixing block 4093, a shoulder stepped shaft 408 penetrates through the through hole, the shoulder stepped shaft 408 is rotatably connected with the connecting block, a first thrust bearing 410, a deep groove ball bearing 411 and a second thrust bearing 412 are sequentially arranged between the shoulder stepped shaft 408 and the inner wall of the through hole, the near-end fixing block 4093 is fixedly connected with square steel 4092, the square steel 4092 is fixedly connected with a bearing sleeve 4091, and the rotating assembly 6 comprises a connecting shaft 601 sleeved in the bearing sleeve 4091. The deep groove ball bearing 411 is used for reducing the friction force between the connecting shaft 601 and the bearing sleeve 4091 and ensuring that the connecting shaft 601 can rotate smoothly. The first thrust bearing 410 and the second thrust bearing 412 are used for bearing the pressure generated by the monitoring assembly 5 in the axial direction of the connecting shaft 601, and the deep groove ball bearing 411 is prevented from being damaged by an overlarge axial load.
Further, an adjusting ring 413 is disposed in the through hole, and the adjusting ring 413 is used for controlling the positions of the first thrust bearing 410 and the second thrust bearing 412.
Further, the connecting shaft 601 is fixedly connected with a swing pipe 604, the swing pipe 604 is fixedly sleeved on a central shaft 603, two limiting plates 602 are rotatably sleeved on the central shaft 603, the monitoring assembly 5 includes a front end beam 503 rotatably sleeved on the central shaft 603, the front end beam 503 is arranged between the two limiting plates 602, and the magnetizer 504 and the sensor 501 are both fixedly arranged on the front end beam 503. The swing pipe 604 rotates around the connecting shaft 601 in the axial direction and the front end cross beam 503 rotates around the middle shaft 603, so that the monitoring assembly 5 can rotate randomly in two directions, and the monitoring assembly 5 can be fully ensured to move along with the steel wire rope.
Further, two guide wear-resistant bushing assemblies 502 are fixedly arranged on the front end cross beam 503, the two guide wear-resistant bushing assemblies 502 are located between the magnetizing body 504 and the sensor 501, and the steel wire rope penetrates through the guide wear-resistant bushing assemblies 502. The guide wear-resistant bushing assembly 502 is used for controlling the direction of the steel wire rope and the distance between the steel wire rope and the magnetizing body 504 and the sensor 501, and the magnetizing body 504 and the sensor 501 are prevented from being damaged due to mutual friction among the steel wire rope, the magnetizing body 504 and the sensor 501.
Further, the guide wear-resistant bushing component 502 comprises a cushion block 5026 fixedly arranged on the front end cross beam 503, a lower wear-resistant block 5024 is fixedly arranged on the cushion block 5026, an upper wear-resistant block 5023 is fixedly arranged on the lower wear-resistant block 5024, a through groove with a semicircular cross section is respectively formed in the lower wear-resistant block 5024 and the upper wear-resistant block 5023, and a channel for penetrating through a steel wire rope is formed by enclosing the two through grooves.
Further, cushion 5026, last wear-resisting piece 5023 and lower wear-resisting piece 5024's fixed mode do: the guide wear-resistant bushing assembly 502 further comprises a U-shaped clamping plate 5021, the clamping plate 5021 and the upper wear-resistant block 5023 are fixedly connected through an upper wear-resistant block fixing bolt group 5022, and the clamping plate 5021 and the front end cross beam 503 are fixedly connected through a clamping plate fixing bolt group 5027. The cushion block 5026 is fixedly connected with the front end beam 503 through a cushion block fixing bolt group 5028, and the lower wear-resistant block 5024 is fixedly connected with the cushion block 5026 through at least one lower wear-resistant block fixing bolt 5025.
The installation and use of the present invention can be generally described as follows.
Firstly, weld fixing base 3 on bridge crane's crossbeam, pay attention to the position during the welding, the dolly frame 2 environment is complicated, under the prerequisite of avoiding interfering, guarantees that movable arm assembly 4's stroke satisfies the needs of 1 rows of ropes of bridge crane reel. Subsequently, the movable arm assembly 4 is fixed to the fixed base 3 by bolts. Then the movable arm component 4, the rotating component 6 and the monitoring component 5 are connected, the steel wire rope to be detected passes through the channels of the two guide wear-resistant bush components 502 of the monitoring component 5 and passes through the magnetizing body 504 and the slotted hole of the sensor 501, and the monitoring component 5 can move along with the rope arrangement of the steel wire rope to be detected, so that the movable arm component 4 is driven to move.
The two horizontal rotating shafts of the movable arm component 4 respectively form a rotating pair by a rotating shaft 403, a shouldered oilless bushing 404, a shouldered stepped shaft 408 and a deep groove ball bearing 411. The rotating shaft 403 and the shouldered oilless bushing 404 form a rotating pair, the structure is simple, the design, the processing, the assembly and the maintenance are simple and easy, the shouldered stepped shaft 408 and the deep groove ball bearing 411 form the rotating pair, the relative structure is complex, the rotation can be more flexible, the design idea that the rotating pair rotates first and then the rotating shaft 403 and the shouldered oilless bushing 404 rotate is driven is met.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a bridge crane wire rope follow-up monitoring devices, bridge crane includes trolley frame (2) and reel (1) of setting on trolley frame (2), wire rope is around establishing on reel (1) and downwards passing trolley frame (2), its characterized in that: the device is in including fixed the setting fixing base (3) of trolley frame (2) below, fixing base (3) have connected gradually movable arm subassembly (4) and rotating assembly (6), rotating assembly (6) fixedly connected with monitoring assembly (5), monitoring assembly (5) are including magnetization body (504) and sensor (501) that set gradually, wire rope is being close to magnetization body (504) and sensor (501) in proper order at the extension in-process.
2. A bridge crane rope follow-up monitoring device as claimed in claim 1, wherein: activity arm subassembly (4) including with fixing base (3) fixed connection's suspension fixed plate (401), suspension fixed plate (401) are connected with pivot (403), and pivot (403) rotate around the one end of self, and pivot (403) rotate and are connected with sleeve pipe welding spare (407), and sleeve pipe welding spare (407) revolute pivot (403) and rotate, and sleeve pipe welding spare (407) rotate and are connected with near-end swinging boom (409), rotating assembly (6) rotate with near-end swinging boom (409) and are connected.
3. A bridge crane rope follow-up monitoring device as claimed in claim 2, wherein: fixing base (3) fixedly connected with two mounting panels that are parallel to each other wear to be equipped with round pin axle (402) between two mounting panels, the one end of pivot (403) is rotated the cover and is established on round pin axle (402).
4. A bridge crane rope follow-up monitoring device as claimed in claim 2, wherein: sleeve pipe welding spare (407) establish including rotating the cover sleeve pipe (4071) on pivot (403), the both ends of sleeve pipe (4071) are respectively connected with pivot (403) through a take shoulder oilless bush (404), sleeve pipe (4071) fixedly connected with extension pipe (4073), extension pipe (4073) and sleeve pipe (4071) mutually perpendicular to fixedly connected with reinforcing plate (4072) between extension pipe (4073) and sleeve pipe (4071), extension pipe (4073) fixedly connected with connecting block, near-end swinging boom (409) is connected with the connecting block.
5. A bridge crane steel wire rope follow-up monitoring device according to claim 4, characterized in that: the near-end rotating arm (409) comprises a near-end fixing block (4093), a through hole is formed in the near-end fixing block (4093), a shoulder stepped shaft (408) penetrates through the through hole, the shoulder stepped shaft (408) is connected with the connecting block in a rotating mode, a first thrust bearing (410), a deep groove ball bearing (411) and a second thrust bearing (412) are sequentially arranged between the shoulder stepped shaft (408) and the inner wall of the through hole, the near-end fixing block (4093) is fixedly connected with square steel (4092), a bearing sleeve (4091) is fixedly connected with the square steel (4092), and the rotating assembly (6) comprises a connecting shaft (601) which is sleeved in the bearing sleeve (4091).
6. A bridge crane steel wire rope follow-up monitoring device according to claim 5, characterized in that: connecting axle (601) fixedly connected with swing pipe (604), swing pipe (604) fixed cover is established on a axis (603), rotates the cover on axis (603) and is equipped with two limiting plates (602), monitoring components (5) are established front end crossbeam (503) on axis (603) including rotating the cover to front end crossbeam (503) set up between two limiting plates (602), magnetize body (504) with sensor (501) all fixed setting is on front end crossbeam (503).
7. A bridge crane steel wire rope follow-up monitoring device according to claim 6, characterized in that: two guide wear-resistant bushing assemblies (502) are fixedly arranged on the front end cross beam (503), the two guide wear-resistant bushing assemblies (502) are located between the magnetizing body (504) and the sensor (501), and the steel wire rope penetrates through the guide wear-resistant bushing assemblies (502).
8. A bridge crane rope follow-up monitoring device as claimed in claim 7, wherein: the guide wear-resistant bushing component (502) comprises a cushion block (5026) fixedly arranged on a front end cross beam (503), a lower wear-resistant block (5024) is fixedly arranged on the cushion block (5026), an upper wear-resistant block (5023) is fixedly arranged on the lower wear-resistant block (5024), a through groove with a semicircular cross section is respectively formed in the lower wear-resistant block (5024) and the upper wear-resistant block (5023), and a channel for penetrating through the steel wire rope is formed by surrounding the two through grooves.
9. A bridge crane rope follow-up monitoring device as claimed in claim 8, wherein: the guide wear-resistant bushing assembly (502) further comprises a U-shaped clamping plate (5021), the clamping plate (5021) is fixedly connected with the upper wear-resistant block (5023) through an upper wear-resistant block fixing bolt group (5022), and the clamping plate (5021) is fixedly connected with the front end cross beam (503) through a clamping plate fixing bolt group (5027).
10. A bridge crane rope follow-up monitoring device as claimed in claim 8, wherein: the cushion block (5026) is fixedly connected with the front end beam (503) through a cushion block fixing bolt group (5028), and the lower wear-resistant block (5024) is fixedly connected with the cushion block (5026) through at least one lower wear-resistant block fixing bolt (5025).
CN201921488650.XU 2019-09-09 2019-09-09 Bridge crane wire rope follow-up monitoring devices Active CN210710402U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921488650.XU CN210710402U (en) 2019-09-09 2019-09-09 Bridge crane wire rope follow-up monitoring devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921488650.XU CN210710402U (en) 2019-09-09 2019-09-09 Bridge crane wire rope follow-up monitoring devices

Publications (1)

Publication Number Publication Date
CN210710402U true CN210710402U (en) 2020-06-09

Family

ID=70960942

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921488650.XU Active CN210710402U (en) 2019-09-09 2019-09-09 Bridge crane wire rope follow-up monitoring devices

Country Status (1)

Country Link
CN (1) CN210710402U (en)

Similar Documents

Publication Publication Date Title
CN210710402U (en) Bridge crane wire rope follow-up monitoring devices
CN201999622U (en) Hoisting device for working roller or intermediate roller
CN108083149B (en) Wire rope guider and dig rig soon
CN103171979B (en) Pulley device and tower crane comprising same
CN110615357A (en) Bridge crane wire rope follow-up monitoring devices
CN201746237U (en) Hoist and counter weight type height limiting device thereof
CN108033368B (en) Crane arm head assembly and crane
CN216549326U (en) Accurate positioning balance system for tower crane
CN102060231A (en) Hoisting method and device for work roller or middle roller
CN210236902U (en) Rope breakage prevention protection device and load-carrying trolley
CN212893540U (en) Steel wire rope twisting prevention device
CN215479184U (en) Subway is slagging tap and is used upset hoist
CN207451446U (en) The electronic restocking of suspension centre type of drive
CN216889847U (en) Tower head supporting and rotating device of tower crane
CN214989661U (en) Carrying pole beam device for hoisting steel beam cable
CN214269978U (en) Tower crane load lifting detection device
CN216190456U (en) Small rail car and operation machine
CN214653006U (en) Hook assembly with pulley block and operation machine
CN212982310U (en) Balance arm for mounting pulley shaft
CN217676464U (en) Gantry crane and lifting steel wire rope length adjusting device thereof
CN215408676U (en) Arm support gap adjusting structure
CN214031394U (en) No computer lab hauler installation mechanism
CN219885475U (en) Lifting tool
CN218025172U (en) Bridge crane wire rope space bar abrasionproof decreases device
CN106677597B (en) Anti-groove-skipping and anti-abrasion rotatable suspension type holding rod head structure

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant