CN210193134U - Chain breakage detection mechanism for hoister - Google Patents
Chain breakage detection mechanism for hoister Download PDFInfo
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- CN210193134U CN210193134U CN201920364878.1U CN201920364878U CN210193134U CN 210193134 U CN210193134 U CN 210193134U CN 201920364878 U CN201920364878 U CN 201920364878U CN 210193134 U CN210193134 U CN 210193134U
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- chain
- bearing sleeve
- connecting rod
- chain breakage
- end cover
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Abstract
The utility model discloses a broken chain detection mechanism for a hoisting machine, which relates to the technical field of hoisting machines and comprises a main frame, a broken chain detection device, a conveying chain and a chain connecting device, wherein the main frame comprises two outer supporting beams which are vertically arranged and an inner supporting beam which is horizontally arranged, the lower end of the chain connecting device vertically penetrates through the inner supporting beam, the upper end of the chain connecting device is connected with the conveying chain, the chain connecting device comprises a connecting rod, the bearing device comprises a bearing sleeve, a bearing sleeve end cover and a cutting detection spring, wherein the upper end of a connecting rod is connected with a conveying chain, the bearing sleeve is arranged on the peripheral surface of the lower end of the connecting rod, the bearing sleeve end cover is further arranged on the peripheral surface of the lower end of the connecting rod, the bearing sleeve end cover is connected with the lower end of the bearing sleeve, the cutting detection spring is arranged between the bearing sleeve and the connecting rod, a chain breakage detection device is arranged on the lower surface of an inner support beam, and the chain breakage detection device is located on one. The chain detection device has the characteristics of detecting the chain and having high accuracy.
Description
Technical Field
The utility model relates to the technical field of lifting machine especially involves a broken chain detection mechanism that lifting machine was used.
Background
The hoister generally refers to large mechanical equipment with high power and high hoisting capacity. The chain and the transported goods are dragged to move up and down through the power machinery to finish the transportation process.
The chain is adopted to promote more in the lifting machine among the prior art, and the chain is easy to wear in the use process, and the condition that the chain is broken can be caused in the long-time use, so that the condition that goods are damaged or casualties are caused, and great potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a broken chain detection mechanism that hoist was used for solve above-mentioned technical problem.
The utility model adopts the technical scheme as follows:
a chain breakage detection mechanism for a lifter comprises a main frame, a chain breakage detection device, a conveying chain and a chain connecting device, wherein the main frame comprises two outer supporting beams which are vertically arranged and an inner supporting beam which is transversely arranged;
the chain connecting device comprises a connecting rod, a bearing sleeve end cover and a cutting detection spring, the connecting rod vertically penetrates through the inner supporting beam, the upper end of the connecting rod is connected with the conveying chain, the bearing sleeve is arranged on the peripheral surface of the lower end of the connecting rod, the upper surface of the bearing sleeve is abutted against the lower surface of the inner supporting beam, the bearing sleeve end cover is further arranged on the peripheral surface of the lower end of the connecting rod, and the bearing sleeve end cover is connected with the lower end of the bearing sleeve; the cutting detection spring is arranged between the bearing sleeve and the connecting rod, and the upper end of the cutting detection spring is abutted against the lower surface of the inner supporting beam;
the lower surface of the inner supporting beam is provided with the chain breakage detection device, and the chain breakage detection device is positioned on one side of the bearing sleeve.
Preferably, the chain breakage detection device comprises a connecting plate and a travel switch, the connecting plate is connected with the lower surface of the inner supporting beam, the travel switch is installed on the connecting plate, and the travel switch is opposite to the end cover of the bearing sleeve.
Preferably, the chain connecting device further comprises a hoisting screw, and the upper end of the connecting rod is connected with the conveying chain through the hoisting screw.
Preferably, the lower end of the cut detection spring is fixedly connected with the upper surface of the bearing sleeve end cover.
Preferably, the chain connecting device further comprises a locking nut, the locking nut is further arranged at the lower end of the connecting rod and used for fixing the end cover of the bearing sleeve
Preferably, the device further comprises a suspension rod, and the suspension rod is respectively arranged at two opposite ends of the upper surface of the inner supporting beam.
Preferably, each of the hanger rods is welded to an upper surface of the inner support beam.
Further preferably, the connecting plate is connected to the lower surface of the inner support beam by a bolt.
The technical scheme has the following advantages or beneficial effects:
the utility model discloses in through the broken chain detection device and the chain connecting device who sets up, can detect the chain, have the characteristics that the accuracy is high, simultaneously, can carry out emergency braking to equipment when the chain breaks off, the phenomenon that prevents the car and fall takes place.
Drawings
Fig. 1 is a longitudinal sectional view of the chain breakage detecting mechanism for the hoist of the present invention.
In the figure: 1. an outer support beam; 2. an inner support beam; 3. a connecting rod; 4. a load bearing sleeve; 5. a bearing sleeve end cover; 6. cutting off the detection spring; 7. a chain breakage detection device; 8. a connecting plate; 9. a travel switch; 10. hoisting a screw rod; 11. locking the nut; 12. a boom.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
Fig. 1 is a longitudinal sectional view of the chain breakage detecting mechanism for a hoist of the present invention, please refer to fig. 1, which shows a preferred embodiment, and the chain breakage detecting mechanism for a hoist shown includes: the chain comprises a main frame, a chain breakage detection device 7, a conveying chain (not shown in the figure) and a chain connecting device, wherein the main frame comprises two outer supporting beams 1 which are vertically arranged and an inner supporting beam 2 which is transversely arranged, one end of the inner supporting beam 2 is connected with one outer supporting beam 1, the other end of the inner supporting beam 2 is connected with the other outer supporting beam 1, the lower end of the chain connecting device vertically penetrates through the inner supporting beam 2, and the upper end of the chain connecting device is connected with the conveying chain.
Further, as a preferred implementation mode, the chain connecting device comprises a connecting rod 3, a bearing sleeve 4, a bearing sleeve end cover 5 and a cut-off detection spring 6, wherein the connecting rod 3 vertically penetrates through the inner supporting beam 2, the upper end of the connecting rod 3 is connected with the conveying chain, the bearing sleeve 4 is arranged on the peripheral surface of the lower end of the connecting rod 3, the upper surface of the bearing sleeve 4 abuts against the lower surface of the inner supporting beam 2, the bearing sleeve end cover 5 is also arranged on the peripheral surface of the lower end of the connecting rod 3, and the bearing sleeve end cover 5 is connected with the lower end of the bearing sleeve 4; a cut-off detection spring 6 is arranged between the bearing sleeve 4 and the connecting rod 3. Wherein, the upper end of the cutting detection spring 6 is pressed against the lower surface of the inner support beam 2. In this embodiment, under normal state, cut off detection spring 6 and be in compression state, when the conveyer chain fracture appears, then cut off detection spring 6 and drive bearing sleeve 4 and bearing sleeve end cover 5 and move down for bearing sleeve 4 and bearing sleeve end cover 5 change relative chain breakage detection device 7's position, when chain breakage detection device 7 detects bearing sleeve 4 and bearing sleeve end cover 5 and takes place to remove, then chain breakage detection device 7 sends emergency braking signal to power device, make equipment emergency stop work, can prevent that the car from falling. The power device is a device for providing power for the equipment, and the length of the cutting detection spring 6 in the non-compression state is larger than that of the bearing sleeve 4 in the embodiment, so that the cutting detection spring 6 can push the bearing sleeve 4 to move when bouncing off.
Further, as a preferred embodiment, the lower surface of the inner supporting beam 2 is provided with a chain breakage detecting device 7, and the chain breakage detecting device 7 is located at one side of the bearing sleeve 4.
Further, as a preferred embodiment, the chain breakage detecting device 7 comprises a connecting plate 8 and a travel switch 9, the connecting plate 8 is connected with the lower surface of the inner supporting beam 2, the travel switch 9 is installed on the connecting plate 8, and the travel switch 9 is opposite to the bearing sleeve end cover 5. Travel switch 9 is used to detect the position of load bearing sleeve 4 and load bearing sleeve end cap 5. Wherein, when the cut-off detection spring 6 is in a compressed state, the travel switch 9 and the bearing sleeve end cover 5 are positioned on the same horizontal plane.
Further, as a preferred embodiment, the chain connecting device further comprises a hoisting screw 10, and the upper end of the connecting rod 3 is connected with the conveying chain through the hoisting screw 10. The hoisting screw 10 is arranged, so that the connecting rod 3 can be conveniently connected with the conveying chain.
Further, as a preferred embodiment, the lower end of the cut detection spring 6 is fixedly connected with the upper surface of the bearing sleeve end cover 5.
Further, as a preferred embodiment, the chain connecting device further comprises a lock nut 11, the lower end of the connecting rod 3 is further provided with the lock nut 11, and the lock nut 11 is used for fixing the bearing sleeve end cover 5.
Further, as a preferred embodiment, the chain breakage detecting mechanism for a hoist further includes a suspension rod 12, and the suspension rods 12 are provided at opposite ends of the upper surface of the inner support beam 2.
Further, as a preferred embodiment, each hanger bar 12 is welded to the upper surface of the inner support beam 2.
Further, as a preferred embodiment, the connecting plate 8 is connected to the lower surface of the inner support beam 2 by bolts.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (8)
1. The chain breakage detection mechanism for the elevator is characterized by comprising a main frame, a chain breakage detection device, a conveying chain and a chain connecting device, wherein the main frame comprises two outer supporting beams which are vertically arranged and an inner supporting beam which is transversely arranged;
the chain connecting device comprises a connecting rod, a bearing sleeve end cover and a cutting detection spring, the connecting rod vertically penetrates through the inner supporting beam, the upper end of the connecting rod is connected with the conveying chain, the bearing sleeve is arranged on the peripheral surface of the lower end of the connecting rod, the upper surface of the bearing sleeve abuts against the lower surface of the inner supporting beam, the bearing sleeve end cover is further arranged on the peripheral surface of the lower end of the connecting rod, the bearing sleeve end cover is connected with the lower end of the bearing sleeve, the cutting detection spring is arranged between the bearing sleeve and the connecting rod, and the upper end of the cutting detection spring abuts against the lower surface of the inner supporting beam;
the lower surface of the inner supporting beam is provided with the chain breakage detection device, and the chain breakage detection device is positioned on one side of the bearing sleeve.
2. The chain breakage detecting mechanism for a hoist according to claim 1, wherein the chain breakage detecting device includes a connecting plate connected to a lower surface of the inner support beam and a travel switch mounted on the connecting plate, the travel switch being opposed to the end cover of the bearing sleeve.
3. The chain breakage detecting mechanism for a hoist according to claim 1, wherein the chain connecting device further includes a hoisting screw, and an upper end of the connecting rod is connected to the conveyor chain through the hoisting screw.
4. The chain breakage detecting mechanism for a hoist according to claim 1, wherein a lower end of the breakage detecting spring is fixedly connected to an upper surface of the bearing sleeve end cover.
5. The chain breakage detecting mechanism for a hoist according to claim 1, wherein the chain connecting device further includes a lock nut, the lock nut being provided at a lower end of the connecting rod, the lock nut being for fixing the bearing sleeve end cap.
6. The chain breakage detecting mechanism for a hoist according to claim 1, further comprising a suspension lever, wherein one suspension lever is provided at each of opposite ends of an upper surface of the inner support beam.
7. The chain breakage detecting mechanism for a hoist according to claim 6, wherein each of the suspension levers is welded to an upper surface of the inner support beam.
8. The chain breakage detecting mechanism for a hoist according to claim 2, wherein the connecting plate is connected to a lower surface of the inner support beam by a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920364878.1U CN210193134U (en) | 2019-03-21 | 2019-03-21 | Chain breakage detection mechanism for hoister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920364878.1U CN210193134U (en) | 2019-03-21 | 2019-03-21 | Chain breakage detection mechanism for hoister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210193134U true CN210193134U (en) | 2020-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920364878.1U Active CN210193134U (en) | 2019-03-21 | 2019-03-21 | Chain breakage detection mechanism for hoister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210193134U (en) |
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2019
- 2019-03-21 CN CN201920364878.1U patent/CN210193134U/en active Active
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