CN210655014U - Automatic clamping device for preventing belt of belt conveyor from reversing - Google Patents
Automatic clamping device for preventing belt of belt conveyor from reversing Download PDFInfo
- Publication number
- CN210655014U CN210655014U CN201921345095.5U CN201921345095U CN210655014U CN 210655014 U CN210655014 U CN 210655014U CN 201921345095 U CN201921345095 U CN 201921345095U CN 210655014 U CN210655014 U CN 210655014U
- Authority
- CN
- China
- Prior art keywords
- belt
- electromagnet
- belt conveyor
- clamping device
- preventing
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to an automatic clamping device for preventing the belt of a belt conveyor from reversing, which comprises a reversing induction mechanism, a belt clamping mechanism and an electric control mechanism; the reverse sensing mechanism is used for monitoring the steering of the belt, and once the belt is monitored to be reversed, a starting instruction is sent to the electric control device; the belt clamping mechanism is used for clamping the bottom belt in time when the belt is reversed, so that the belt is quickly and effectively prevented from being reversed; the electric control mechanism is used for starting and stopping the clamping mechanism, and various protections are complete and sensitive as other underground control equipment. The device of the utility model is simple in principle, ingenious in design, sensitive reliable, the operation of action is stable, has realized automatic monitoring, self-holding's function.
Description
Technical Field
The utility model relates to a belt protection technical field, more specifically say, relate to an automatic clamping device for preventing belt conveyor belt from reversing.
Background
In the working process of a belt of the belt conveyor, the belt of the belt conveyor is in reversion after being stopped due to the reasons of large carrying load, insufficient tension and the like. The belt reverse rotation can cause the accumulations of coal, gangue and the like at the tail of the aircraft, so that a production team is forced to waste a certain time and manpower to clean the accumulations, and equipment (including a backstop with a high price) can be damaged, and even casualties can be caused.
The existing belt has a backstop and a band-type brake device, but the belt reversion accident can not be completely avoided. Through careful research of mine workers, an automatic clamping device for preventing an upward belt from reversing is manufactured to be matched with a backstop and a brake device to achieve the purpose of thoroughly eliminating the potential accident hazard of belt reversing.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to prior art's above-mentioned defect, provide an automatic clamping device for preventing belt conveyor belt from reversing.
The utility model provides a technical scheme that its technical problem adopted is: constructing an automatic clamping device for preventing belt reversion of a belt conveyor, comprising: the belt clamping mechanism, the reverse sensing mechanism and the electric control mechanism;
the belt clamping mechanism is arranged close to a belt at the bottom of the belt conveyor, is fixed on the outer side wall of an H-shaped frame of the belt conveyor and comprises an electromagnet, an armature, a push-pull rod, a fixing clamp, a triangular push-pull frame and a rocker; the electromagnet is fixedly arranged on the H-shaped frame, two fixing clamps are arranged and are sequentially fixed on the H-shaped frame, the fixing clamps are provided with through holes, the push-pull rod penetrates through the through holes in the two fixing clamps, two ends of the push-pull rod are respectively and fixedly connected with the armature and one side of the triangular push-pull frame, and the armature is arranged opposite to the electromagnet; the triangular push-pull frame is formed by welding steel plates with preset width, and quadrilateral slide holes are formed in the steel plates which are not connected with the two sides of the push-pull rod; 2 rocking bars are arranged, a rocking bar rotating ring is arranged in the middle of each rocking bar, one end of each rocking bar is vertically connected with a connecting rod, the connecting rod extends into a sliding hole arranged on the triangular push-pull frame and slides along the sliding hole, and the other end of each rocking bar rotates from the rocking bar rotating ring to form a clamp shape so as to clamp the belt;
the reversing induction mechanism is arranged on the lower side of the bottom belt and comprises a carrier roller, two ends of the carrier roller are fixedly connected with rotating shafts, the rotating shafts at two ends of the carrier roller are respectively connected with a bearing inner ring, and bearing outer rings are fixed on the inner side walls of the two sides of the belt conveyor on one side of the modified H-shaped frame; a rotating shaft at one end of the carrier roller penetrates through the H-shaped frame through a bearing, the other side of the side wall of the rotating shaft is connected with a primary gear, a secondary gear shaft is further arranged on one side, provided with the primary gear, of the H-shaped frame, the secondary gear shaft penetrates through the H-shaped frame, a secondary gear seat is arranged on the other side of the H-shaped frame, a secondary gear is arranged on the secondary gear shaft, gear teeth of the primary gear and gear teeth of the secondary gear are meshed with each other, so that the primary gear rotates along with the rotation of the carrier roller, and the; a speed relay is arranged, and a rotor of the speed relay is connected with the secondary gear shaft;
the electric control mechanism comprises an electromagnet electric control box and a double-press switch, the electromagnet electric control box is provided with interfaces A-F, and the interface A is a power line interface and is connected with power supply equipment for supplying power; the interface B is connected with a speed relay; the interface C and the interface D are respectively connected to electromagnets which are respectively arranged on two sides of the belt conveyor through electromagnet load lines; the interface E is connected with a double-pressing switch through an operating line; the interface F is connected to a belt soft start of the belt conveyor through a locking line; the belt soft start and the electromagnet electric control box are electrically interlocked, the electromagnet is electrified, the belt soft start cannot supply power, or the electromagnet cannot be electrified when the belt runs; the first switch SB1 and the second switch SB2 of the double-press switch are connected in series, and the normally open contact KS of the speed relay is connected with the second switch SB2 in parallel.
A automatic clamping device for preventing belt conveyor belt from reversing, automatic clamping device includes 2 belt clamping mechanism, fixed the setting respectively on the both sides lateral wall of belt conveyor H type frame.
A automatic clamping device for preventing belt conveyor belt from reversing, among the belt clamping mechanism, connecting rod one end is connected with the rocker is perpendicular, the fixed runner that sets up of connecting rod other end, the connecting rod surface is arranged in to the runner cover, and is injectd in the inside removal of slide opening, realizes that the connecting rod drives the slide opening of rocker for triangle-shaped push-and-pull frame and slides.
A automatic clamping device for preventing belt conveyor belt is reversed, the one end that forms the clamp form between the rocker sets up the rubber pad relatively, and two rockers that form the clamp form are located belt surface both sides respectively.
A automatic clamping device for preventing belt conveyor belt from reversing, two belt clamping mechanism belt symmetry sets up relatively, and is located two belt clamping mechanism's of belt surface homonymy rocker and connects through a splint, splint set up the rubber pad towards one side of belt.
A automatic clamping device for preventing belt conveyor belt from reversing, reverse the bearing of the axle that response mechanism intermediate roll and primary gear link to each other and set up in the H type frame after reforming transform fixedly.
The automatic clamping device for preventing the belt of the belt conveyor from reversing comprises a reversing induction mechanism, a belt clamping mechanism and an electric control mechanism; the reverse sensing mechanism is used for monitoring the steering of the belt, and once the belt is monitored to be reversed, a starting command is sent to the electric control device. The belt clamping mechanism is used for clamping the bottom belt in time when the belt is reversed, and quickly and effectively preventing the belt from being reversed. The electric control mechanism is used for starting and stopping the clamping mechanism, and various protections are complete and sensitive as other underground control equipment. The steering of the belt is monitored by utilizing the principle of a speed relay, and the response sensitivity of the belt is improved by a gear transmission mechanism; the clamping action of the belt clamping device is realized by utilizing the electromagnetic force of the electromagnet and a smart mechanical mechanism; electric locking is carried out between the electric cabinet and the belt soft start, so that the belt pulling accident is prevented; the device has the advantages of simple principle, ingenious design, sensitive and reliable action and stable operation, and realizes the functions of automatic monitoring and automatic clamping.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic structural view of a belt clamping mechanism of an automatic clamping device for preventing a belt of a belt conveyor from reversing;
FIG. 2 is a front elevational schematic view of a belt clamping mechanism of another embodiment of an automatic clamping apparatus for preventing belt reversion according to the present invention;
fig. 3 is a schematic structural diagram of a reverse rotation sensing mechanism of an automatic clamping device for preventing a belt of a belt conveyor from reversing;
fig. 4 is a schematic view of a simple gear transmission device in a reverse rotation sensing mechanism of an automatic clamping device for preventing a belt of a belt conveyor from reversing;
fig. 5 is a schematic circuit diagram of an electrical control mechanism of an automatic clamping device for preventing belt reversion of a belt conveyor according to the present invention;
fig. 6 is a schematic structural diagram of an electrical control mechanism of an automatic clamping device for preventing a belt of a belt conveyor from reversing, which is provided by the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The utility model discloses an automatic clamping device for preventing belt of belt conveyor from reversing, which comprises a belt clamping mechanism, a reversing induction mechanism and an electric control mechanism;
the belt clamping mechanism is arranged close to a belt 4 at the bottom of the belt conveyor, as shown in fig. 1, all parts in the drawing are fixed on or penetrate through an H-shaped frame 5 welded with a steel plate, and each part comprises an electromagnet 11, an armature 12, a push-pull rod 13, a fixing clamp 14, a triangular push-pull frame 15 and a rocker 16; the electromagnet 11 is fixedly arranged on the H-shaped frame 5 through a supporting channel steel and used for generating electromagnetic force to attract the armature 12, two fixing clips 14 are arranged and sequentially fixed on the H-shaped frame 5, the fixing clips 14 are provided with through holes, and the push-pull rod 13 penetrates through the through holes on the two fixing clips 14 and serves as a slideway of the push-pull rod. Two ends of the push-pull rod 13 are respectively and fixedly connected with the armature 12 and one side of the triangular push-pull frame 15, and the armature 12 is arranged opposite to the electromagnet 11. The armature 12 is a steel plate with a large length-width ratio and a narrow length, and is used for driving the push-pull rod 13 to slide. The outside of the push-pull rod 13 is provided with a return spring 112, both ends of which are respectively fixed on a fixing clip 14 and a spring fixing seat 113 fixedly arranged on the push-pull rod 13, wherein the spring fixing seat 113 is a long and narrow steel plate welded with the push-pull rod into a whole. The triangular push-pull frame 15 is formed by welding three steel plates and is triangular, preferably isosceles triangular. The two steel plates forming the two waists of the utility model are all provided with a quadrilateral slide hole with the shape approximately the same as that of the bevel edge in the middle. 2 rockers 16 are arranged, a rocker rotating collar 161 is arranged in the middle of each rocker 16, one end of each rocker 16 is vertically connected with a connecting rod 17, the connecting rod 17 extends into a sliding hole arranged on the triangular push-pull frame 15 and slides along the sliding hole, and the other end of each rocker 16 forms a clamp shape from the rocker rotating collar 161 so as to clamp a belt; two rocker rotating collars 161 are fitted over a rocker rotating shaft 111 to rotate the rockers 16 about the rocker rotating shaft 111. The rocker 16 is designed to completely clamp the bottom belt 4 by gradually widening its forward end and ending with a beveled edge sloping in the direction of the triangular push-pull frame, the edge for clamping the belt 4 being a slightly sloping edge.
As shown in fig. 3, the reverse sensing mechanism is disposed at the lower side of the bottom belt 4, and includes a carrier roller 21, two ends of the carrier roller 21 are fixedly connected to a rotating shaft 22, the rotating shafts 22 at two ends of the carrier roller 21 are respectively connected to inner rings of bearings 23, and outer rings of the bearings 23 are respectively fixed on inner side walls of the modified H-shaped frames 5 at two sides of the belt conveyor. A rotating shaft 22 at one end of the carrier roller 21 penetrates through the H-shaped frame through a bearing 23, the rotating shaft 22 is connected with a primary gear 24 at the other side of the side wall, a secondary gear shaft 25 is further arranged at one side of the H-shaped frame 5, which is provided with the primary gear 24, the secondary gear shaft 25 penetrates through the H-shaped frame 5, a secondary gear seat 26 is arranged at the other side of the H-shaped frame 5, a secondary gear 27 is arranged on the secondary gear shaft 25, gear teeth of the primary gear 24 and the secondary gear 27 are meshed with each other, so that the primary gear 24 rotates along with the rotation of the carrier roller 21, and the secondary gear 27 rotates along; a speed relay 28 is provided, and the rotor of the speed relay 28 is connected to the secondary gear shaft 25;
the electric control mechanism comprises an electromagnet electric control box 31 and a double-pressing switch 32, as shown in figure 6. The electromagnet electric control box 31 is provided with interfaces A-F, wherein the interface A is a power line interface and is connected with power supply equipment for supplying power; interface B is connected with a speed relay 28; the interface C and the interface D are respectively connected to the electromagnets 11 respectively arranged on two sides of the belt conveyor through electromagnet load lines; the interface E is connected with the double-pressing switch 32 through an operating line; the interface F is connected to a belt soft start 6 of the belt conveyor through a locking line; the belt soft start 6 and the electromagnet electric cabinet 31 are electrically interlocked, the electromagnet 11 is electrified, the belt soft start 6 cannot be powered on, or the electromagnet cannot be powered when the belt runs; the first switch SB1 and the second switch SB2 of the double push switch are connected in series, and the normally open contact KS of the speed relay is connected in parallel with the second switch SB2, as shown in fig. 5. In the figure, KM is a normally open contact of an auxiliary contact of a contactor in the electromagnet electric cabinet 31, and plays a role of a self-protection point of a circuit.
Since the speed relay 28 needs to reach a certain rotational speed to operate, the simple gear transmission device as described above is fabricated in order to improve the sensitivity of the reverse sensing mechanism and the rapidity of the reaction, as shown in fig. 4. It is known from the transmission ratio theory that the secondary gear 27 rotates at a higher speed than the primary gear 24, and the transmission ratio is more than three times as required by design. When the belt 4 is reversed, the primary gear 24 rotates towards the belt head, and the secondary gear 27 meshed with the primary gear rotates towards the belt tail according to the gear transmission theory, so that the stator of the speed relay 28 generates induced electromotive force, overcomes the elastic force of the spring of the speed relay 28, and closes the normally open contact KS, thereby switching on the power supply of the electromagnet 11.
In the automatic clamping device for preventing belt of belt conveyor from reversing, the automatic clamping device includes 2 belt clamping mechanisms, and is respectively and fixedly arranged on the side walls of two sides of the H-shaped frame 5 of the belt conveyor.
In the automatic clamping device for preventing belt conveyor belt from reversing, in the belt tightening mechanism 1, 17 one end of the connecting rod is connected with the rocker 16 vertically, the rotating wheel 18 is fixedly arranged at the other end of the connecting rod 17, the rotating wheel 16 is sleeved on the surface of the connecting rod 17, and the connecting rod 17 is limited in the inside movement of the sliding hole, so that the connecting rod 17 drives the rocker 16 to slide relative to the sliding hole of the triangular push-pull frame 15, and the friction force between the connecting rod 17 and the sliding hole is reduced.
In the automatic clamping device for preventing belt conveyor belt from reversing, the rubber pad 19 is arranged relatively at the end forming the clamp between the rockers 16, and the two rockers 15 forming the clamp are respectively arranged on two sides of the surface of the belt 4.
As shown in fig. 2, in another embodiment of the automatic clamping device for preventing belt reversion of a belt conveyor of the present invention, two belt tightening mechanisms 1 are symmetrically arranged with respect to a belt 4, and rockers 16 of the two belt tightening mechanisms located on the same side of the surface of the belt 4 are connected by a clamp plate 110, and a rubber pad 19 is disposed on one side of the clamp plate 110 facing the belt. The clamp plate 110 is a steel plate having the same thickness as the narrowest width of the forward end of the rocker 16, and connects the rockers 16 of the belt clamping mechanisms on both sides of the belt 4. To facilitate removal, the end of the rocker 16 that extends forward is screwed on. In order to reduce the damage to the belt 4 when the belt clamping mechanism clamps the bottom belt 4, a rubber pad 19 is coated on the surface of the clamping plate 110 for clamping the bottom belt.
When the belt 4 normally runs, the primary gear 24 rotates forward, the secondary gear 27 meshed with the primary gear 24 rotates backward, the speed relay 19 generates a backward electromagnetic force, but since the normally open contact in the backward direction is not wired, the backward rotation does not work, the circuit in the electric cabinet is still in an open state, and the electromagnet 11 does not work. When the belt 4 is reversed, the special carrier roller 21 is driven to reverse, and the primary gear 24 is also driven to reverse. At this time, the secondary gear 27 meshing with the primary gear 24 is rotated in the normal direction, and the generated electromagnetic force triggers the normally open contact KS in the normal rotation direction of the speed relay 28 to close. At this time, KS in the control circuit of the electric cabinet is closed, and the circuit is connected. As shown in fig. 5. After the electromagnet electric control box 31 is switched on, the electromagnet 11 is electrified, electromagnetic force is generated to overcome the elastic force of the reset spring 112, the attraction armature 12 pulls the push-pull rod 13 backwards to move in the fixing clamp 14, the triangular push-pull frame 15 welded with the push-pull rod 13 moves backwards, the two rocking bars 16 are driven to rotate in opposite directions, and the two clamping plates 110 are closed to tightly clamp the belt 4. After the reversal accident is processed, the stop button SB1 is pressed, the electromagnet 11 loses power, the electromagnetic force disappears, the belt clamping mechanism is reset under the elastic force of the reset spring 112, the two rocking bars 16 rotate reversely, and the clamping plate 110 is loosened.
The automatic clamping device for preventing the belt of the belt conveyor from reversing comprises a reversing induction mechanism, a belt clamping mechanism and an electric control mechanism; the reverse sensing mechanism is used for monitoring the steering of the belt, and once the belt is monitored to be reversed, a starting command is sent to the electric control device. The belt clamping mechanism is used for clamping the bottom belt in time when the belt is reversed, and quickly and effectively preventing the belt from being reversed. The electric control mechanism is used for starting and stopping the clamping mechanism, and various protections are complete and sensitive as other underground control equipment. The steering of the belt is monitored by utilizing the principle of a speed relay, and the response sensitivity of the belt is improved by a gear transmission mechanism; the clamping action of the belt clamping device is realized by utilizing the electromagnetic force of the electromagnet and a smart mechanical mechanism; electric locking is carried out between the electric cabinet and the belt soft start, so that the belt pulling accident is prevented; the device has the advantages of simple principle, ingenious design, sensitive and reliable action and stable operation, and realizes the functions of automatic monitoring and automatic clamping.
While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (6)
1. An automatic clamping device for preventing belt reversion of a belt conveyor, comprising: the belt clamping mechanism, the reverse sensing mechanism and the electric control mechanism;
the belt clamping mechanism is arranged close to a belt at the bottom of the belt conveyor, is fixed on the outer side wall of an H-shaped frame of the belt conveyor and comprises an electromagnet, an armature, a push-pull rod, a fixing clamp, a triangular push-pull frame and a rocker; the electromagnet is fixedly arranged on the H-shaped frame, two fixing clamps are arranged and are sequentially fixed on the H-shaped frame, the fixing clamps are provided with through holes, the push-pull rod penetrates through the through holes in the two fixing clamps, two ends of the push-pull rod are respectively and fixedly connected with the armature and one side of the triangular push-pull frame, and the armature is arranged opposite to the electromagnet; the triangular push-pull frame is formed by welding steel plates with preset width, and quadrilateral slide holes are formed in the steel plates which are not connected with the two sides of the push-pull rod; 2 rocking bars are arranged, a rocking bar rotating ring is arranged in the middle of each rocking bar, one end of each rocking bar is vertically connected with a connecting rod, the connecting rod extends into a sliding hole arranged on the triangular push-pull frame and slides along the sliding hole, and the other end of each rocking bar rotates from the rocking bar rotating ring to form a clamp shape so as to clamp the belt;
the reverse induction mechanism is arranged on the lower side of a bottom belt and comprises a carrier roller, two ends of the carrier roller are fixedly connected with rotating shafts, the rotating shafts at two ends of the carrier roller are respectively connected with a bearing inner ring, a bearing outer ring is fixed on the inner side wall of one side of an H-shaped frame after transformation at two sides of a belt conveyor, the rotating shafts are connected with a primary gear at the other side of the side wall, a secondary gear shaft is also arranged at one side of the H-shaped frame where the primary gear is arranged, the secondary gear shaft penetrates through the H-shaped frame, a secondary gear seat is arranged at the other side of the H-shaped frame, a secondary gear is arranged on the secondary gear shaft, gear teeth of the primary gear and gear teeth of; a speed relay is arranged, and a rotor of the speed relay is connected with the secondary gear shaft;
the electric control mechanism comprises an electromagnet electric control box and a double-press switch, the electromagnet electric control box is provided with interfaces (A) - (F), and the interface (A) is a power line interface and is connected with power supply equipment for supplying power; the interface (B) is connected with a speed relay; the interface (C) and the interface (D) are connected to two ends of the electromagnet coil through electromagnet load lines; the interface (E) is connected with the double-pressing switch through an operating line; the interface (F) is connected to the belt soft start of the belt conveyor through a locking line; the belt soft start and the electromagnet electric control box are electrically interlocked, the electromagnet is electrified, the belt soft start cannot supply power, or the electromagnet cannot be electrified when the belt runs; the first switch SB1 and the second switch SB2 of the double-press switch are connected in series, and the normally open contact KS of the speed relay is connected with the second switch SB2 in parallel.
2. The automatic clamping device for preventing the belt of the belt conveyor from being reversed according to claim 1, wherein the automatic clamping device comprises 2 belt clamping mechanisms fixedly arranged on two side walls of an H-shaped frame of the belt conveyor respectively.
3. The automatic clamping device for preventing the belt of the belt conveyor from reversing as claimed in claim 1, wherein in the belt clamping mechanism, one end of a connecting rod is vertically connected with a rocker, the other end of the connecting rod is fixedly provided with a rotating wheel, the rotating wheel is sleeved on the surface of the connecting rod and limited in the sliding hole to move, and the connecting rod drives the rocker to slide relative to the sliding hole of the triangular push-pull frame.
4. The automatic clamping device for preventing belt reversion of a belt conveyor according to claim 2, wherein the rubber pads are oppositely arranged at one end forming a clamp shape between the rocking bars, and the two rocking bars forming the clamp shape are respectively positioned at two sides of the surface of the belt.
5. The automatic clamping device for preventing belt reversion of a belt conveyor as claimed in claim 4, wherein the two belt clamping mechanisms are symmetrically arranged relative to the belt, and the rocking bars of the two belt clamping mechanisms positioned on the same side of the surface of the belt are connected through a clamping plate, and a rubber pad is arranged on the side of the clamping plate facing the belt.
6. The automatic clamping device for preventing the belt of the belt conveyor from being reversed according to claim 1, wherein the bearing of the rotating shaft to which the idler and the primary gear are coupled in the reverse induction mechanism is supported and fixed by a bearing housing fixedly provided on the H-frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921345095.5U CN210655014U (en) | 2019-08-19 | 2019-08-19 | Automatic clamping device for preventing belt of belt conveyor from reversing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921345095.5U CN210655014U (en) | 2019-08-19 | 2019-08-19 | Automatic clamping device for preventing belt of belt conveyor from reversing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210655014U true CN210655014U (en) | 2020-06-02 |
Family
ID=70841068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921345095.5U Expired - Fee Related CN210655014U (en) | 2019-08-19 | 2019-08-19 | Automatic clamping device for preventing belt of belt conveyor from reversing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210655014U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110525916A (en) * | 2019-08-19 | 2019-12-03 | 山西潞安环保能源开发股份有限公司王庄煤矿 | A kind of automatic clamping device for preventing belt conveyor belt from reversing |
-
2019
- 2019-08-19 CN CN201921345095.5U patent/CN210655014U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110525916A (en) * | 2019-08-19 | 2019-12-03 | 山西潞安环保能源开发股份有限公司王庄煤矿 | A kind of automatic clamping device for preventing belt conveyor belt from reversing |
| CN110525916B (en) * | 2019-08-19 | 2024-03-22 | 山西潞安环保能源开发股份有限公司王庄煤矿 | Automatic clamping device for preventing belt of belt conveyor from reversing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201389856Y (en) | Clamping mechanism of automatic equipment | |
| CN210655014U (en) | Automatic clamping device for preventing belt of belt conveyor from reversing | |
| CN103552880B (en) | A kind of drawing cable line apparatus | |
| CN110525916B (en) | Automatic clamping device for preventing belt of belt conveyor from reversing | |
| CN203045416U (en) | Plate conveyer used for drilling machine | |
| JP2019151247A (en) | Dolly with power assist mechanism | |
| GB1230918A (en) | ||
| CN206562129U (en) | Pressure-feedback-type driving station and chain conveying mechanism | |
| CN110357005A (en) | Electri forklift drive system, electri forklift | |
| CN201321534Y (en) | Heating fuse traction roller device | |
| CN109132314A (en) | A kind of shelf pushing meanss | |
| CN204472665U (en) | Semi-mounted paulin automobile-used movable device | |
| CN205630311U (en) | Abrasive band feed mechanism | |
| CN203602171U (en) | Cable coiling reversing device of mine discharging carriage | |
| CN2371210Y (en) | Magnetic driver for fabric guide roll | |
| US2504306A (en) | Change-speed mechanism for machine tools | |
| CN103640852A (en) | Backstop device for belt conveyor | |
| CN220337395U (en) | Traction trolley device for efficiently and stably introducing unit sections of tower crane | |
| CN103318615A (en) | Output device capable of performing scaling by utilizing motion proportion | |
| CN202077545U (en) | Feeding roller component used for nut breaker | |
| CN216403102U (en) | Magnetic force wheel power assembly line mechanism | |
| CN211734562U (en) | Conveying pipeline of automatic blowing-carding combination machine | |
| CN205222204U (en) | Automatic cloth batches debatching and equips | |
| CN208522636U (en) | A kind of pulsed motive power machine equipment | |
| CN210735939U (en) | Waste rock turning cage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200602 Termination date: 20210819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |