CN113830495B - Middle groove connecting device - Google Patents
Middle groove connecting device Download PDFInfo
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- CN113830495B CN113830495B CN202110909617.5A CN202110909617A CN113830495B CN 113830495 B CN113830495 B CN 113830495B CN 202110909617 A CN202110909617 A CN 202110909617A CN 113830495 B CN113830495 B CN 113830495B
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- pin
- dumbbell
- dumbbell pin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
- B65G19/28—Troughs, channels, or conduits
- B65G19/287—Coupling means for trough sections
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
- B65G19/28—Troughs, channels, or conduits
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model provides a middle part groove connecting device, belongs to mining conveying equipment technical field, is provided with the joint portion of joint dumbbell round pin on the middle part groove, including main part dumbbell round pin and fastener, main part dumbbell round pin joint is in the joint portion department of middle part groove, and the fastener is installed in main part dumbbell round pin one end tip, and joint in the joint portion department of middle part groove simultaneously for fastening main part dumbbell round pin prevents that main part dumbbell round pin from rotating in the joint portion department of middle part groove; the fastener comprises a clamping block and a spring pin, wherein the clamping block is clamped at the clamping part of the middle groove and is connected with the main dumbbell pin; the clamping block is provided with a first bulge, a second bulge and a third bulge, and the first bulge, the second bulge and the third bulge are jointly enclosed and used for encircling the spring pin in the center so as to prevent the material and the spring pin from mutually collision and extrusion. The problem of connection failure between middle part groove and the middle part groove is solved.
Description
Technical Field
The invention belongs to the technical field of mining conveying equipment, and particularly relates to a middle groove connecting device.
Background
The scraper conveyor is one of key equipment of the underground mechanized coal face of the coal mine, the middle groove is a main part of the scraper conveyor for bearing materials, dumbbell pins are widely used for connection between the middle groove and the middle groove, compared with the dumbbell pin connection and the bolt connection, a larger gap exists between a screw rod and a through hole in the bolt connection, the middle groove is easy to misplace when connected with the middle groove, the dumbbell pins are one of pin shafts, belong to standardized fasteners, can be fixedly connected and can also relatively move with the fastened, and are reliable in work and convenient to detach.
However, traditional dumbbell pin is in working face coal mining process, when the material scatter in the middle part groove outside, pile up in middle part groove both sides, can bury the fastener of dumbbell pin and dumbbell pin of connecting two sections middle part grooves, stretch out towards the mine when the reversed loader and move, can drive the middle part groove and remove, when the middle part groove removes, middle part groove and dumbbell pin can collide extrusion with the material each other, lead to dumbbell pin and fastener to come off even from the junction in middle part groove pine takes off, lead to both ends middle part groove disconnection, need the staff to pull two sections middle part grooves to align, use the dumbbell pin again to connect two sections middle part grooves.
Disclosure of Invention
In view of the above, the present application provides a middle groove connecting device, which prevents the middle groove connecting device from falling off from the middle groove, and solves the problem of connection failure between the middle groove and the middle groove.
The middle groove connecting device comprises a main body dumbbell pin and a fastener, wherein the main body dumbbell pin is clamped at the clamping part of the middle groove, the fastener is arranged at one end part of the main body dumbbell pin and is simultaneously clamped at the clamping part of the middle groove and used for fastening the main body dumbbell pin to prevent the main body dumbbell pin from rotating at the clamping part of the middle groove;
the fastening piece comprises a clamping block and a spring pin, wherein the clamping block is clamped at a clamping part of the middle groove and is connected with the main dumbbell pin, and the spring pin is arranged on the clamping block and is connected with the main dumbbell pin at the same time to prevent the clamping block from falling off from the main dumbbell pin;
the clamping block is provided with a first bulge, a second bulge and a third bulge, and the first bulge, the second bulge and the third bulge are jointly enclosed and used for encircling the spring pin in the center so as to prevent materials from being extruded by collision with the spring pin.
Preferably, the main body dumbbell pin comprises a first dumbbell pin and a second dumbbell pin, the first dumbbell pin is clamped on the second dumbbell pin, and the first dumbbell pin and the second dumbbell pin can swing left and right; the fastener is mounted at one end of the second dumbbell pin.
Preferably, the first dumbbell pin comprises a first cylinder and a protruding head, the protruding head is arranged at one end of the first cylinder, a clamping groove is formed in one end of the second dumbbell pin, and the protruding head is clamped in the clamping groove.
Preferably, the first dumbbell pin and the second dumbbell pin can swing left and right by 0-10 degrees.
Preferably, the protruding head comprises a clamping column and a clamping ball, the clamping column is connected with one end of the first column, and the clamping ball is arranged at the end of the clamping column.
Preferably, the second dumbbell pin comprises a first half-section dumbbell pin and a second half-section dumbbell pin, and the first half-section dumbbell pin and the second half-section dumbbell pin can be detached and separated.
Preferably, the clamping groove comprises a cylinder groove and a sphere groove, the cylinder groove is used for being clamped with the clamping column, clearance fit is achieved between the cylinder groove and the clamping column, the length of the clamping column is larger than that of the cylinder groove, the sphere groove is used for being clamped with the clamping ball, and the diameter of the sphere groove is larger than that of the clamping ball.
Preferably, the second dumbbell pin is provided with pin keyways, the pin keyways are uniformly distributed on the first half-split dumbbell pin and the second half-split dumbbell pin, and when the first half-split dumbbell pin and the second half-split dumbbell pin are combined, the pin keys can be clamped in the pin keyways.
Preferably, the fastener comprises a clamping block and a spring pin, wherein the clamping block is installed at one end part of the second dumbbell pin and used for clamping and combining the first half-section dumbbell pin and the second half-section dumbbell pin together, and the spring pin is arranged at one end part of the second dumbbell pin and used for fixing the clamping block on the second dumbbell pin.
According to the technical scheme, the middle groove connecting device comprises a main body dumbbell pin and a fastener, wherein the main body dumbbell pin is clamped at the clamping part of the middle groove, the fastener is arranged at one end part of the main body dumbbell pin and is clamped at the clamping part of the middle groove at the same time and used for fastening the main body dumbbell pin, and the main body dumbbell pin is prevented from rotating at the clamping part of the middle groove; the fastening piece comprises a clamping block and a spring pin, wherein the clamping block is clamped at a clamping part of the middle groove and is connected with the main dumbbell pin, and the spring pin is arranged on the clamping block and is connected with the main dumbbell pin at the same time to prevent the clamping block from falling off from the main dumbbell pin; the clamping block is provided with a first bulge, a second bulge and a third bulge, and the first bulge, the second bulge and the third bulge are jointly enclosed and used for encircling the spring pin in the center so as to prevent materials from being extruded by collision with the spring pin. When the material scatter in middle part groove both sides, avoided at middle part groove removal in-process, material and dumbbell round pin and fastener extrusion collision each other, lead to dumbbell round pin and fastener to loosen and take off even drop from the joint portion department in middle part groove, solved the problem of connecting inefficacy between middle part groove and the middle part groove.
Drawings
FIG. 1 is a schematic diagram of a middle slot and dumbbell pin.
Fig. 2 is an isometric view of a mid-tank connection.
Fig. 3 is a top view of the fixture block.
Fig. 4 is a rear view of the latch.
Fig. 5 is a side view of the latch.
Fig. 6 is an isometric view of a spring pin.
Fig. 7 is a side view of a body dumbbell pin.
Fig. 8 is a front view of a body dumbbell pin.
Fig. 9 is a top view of a body dumbbell pin.
Fig. 10 is a cross-sectional view of a body dumbbell pin.
Fig. 11 is a cross-sectional view of a first dumbbell pin.
Fig. 12 is a cross-sectional view of a second dumbbell pin.
Fig. 13 is a second dumbbell pin split view.
In the figures, the main body dumbbell pin 100, the first dumbbell pin 110, the first column 111, the raised head 112, the locking column 1121, the locking ball 1122, the second dumbbell pin 120, the locking groove 121, the column groove 1211, the sphere groove 1212, the first half-cut dumbbell pin 122, the second half-cut dumbbell pin 123, the key groove 124, the positioning boss 125, the fastener 200, the locking block 210, the first protrusion 211, the second protrusion 212, the third protrusion 213, the boss groove 214, the spring pin 220, the pin ring 221, and the locking portion 300.
Detailed Description
The technical scheme and technical effects of the present application are further elaborated below in conjunction with the drawings of the present application.
Referring to fig. 1 to 3, as can be seen from the above technical solutions, the present application provides a middle slot connecting device, wherein a clamping portion 300 for clamping a dumbbell pin is provided on a middle slot, the middle slot connecting device comprises a main body dumbbell pin 100 and a fastener 200, the main body dumbbell pin 100 is clamped at the clamping portion 300 of the middle slot, the fastener 200 is installed at one end of the main body dumbbell pin 100 and is clamped at the clamping portion 300 of the middle slot at the same time, and is used for fastening the main body dumbbell pin 100 to prevent the main body dumbbell pin 100 from rotating at the clamping portion 300 of the middle slot; the fastener 200 comprises a clamping block 210 and a spring pin 220, wherein the clamping block 210 is clamped at a clamping part 300 of the middle groove and is connected with the main body dumbbell pin 100, the spring pin 220 is arranged on the clamping block 210 and is simultaneously connected with the main body dumbbell pin 100, and the clamping block 210 is prevented from falling off from the main body dumbbell pin 100; the clamping block 210 is provided with a first protrusion 211, a second protrusion 212 and a third protrusion 213, and the first protrusion 211, the second protrusion 212 and the third protrusion 213 are used for surrounding the spring pin 220 in the center together, so as to prevent the material and the spring pin 220 from being mutually collided and extruded. When the material is scattered in middle part groove both sides, avoided at middle part groove removal in-process, material and main part dumbbell pin 100 and fastener 200 extrusion collision each other, lead to main part dumbbell pin 100 and fastener 200 can follow the joint portion 300 pine of middle part groove and take off even drop, solved the problem of connecting inefficacy between middle part groove and the middle part groove.
Specifically, the pin ring 221 is disposed on the spring pin 220, when the pin ring 221 is mounted on the spring pin 220, the pin ring 221 is located at the centers of the first protrusion 211, the second protrusion 212 and the third protrusion 213, so that the pin ring 221 can be clamped, the pin ring 221 is connected with the spring pin 220, and the spring pin 220 can be prevented from falling off from the second dumbbell pin, meanwhile, the first protrusion 211, the second protrusion 212 and the third protrusion 213 have the function of protecting the spring pin 220, when materials exist at two sides of the middle groove, the materials can collide with the spring pin 220 due to the movement of the middle groove, and when the first protrusion 211, the second protrusion 212 and the third protrusion 213 collide with the first protrusion 211, the second protrusion 212 and the third protrusion 213, the materials are prevented from colliding with the spring pin 220, and the spring pin 220 is prevented from falling off from the second dumbbell pin.
The main body dumbbell pin 100 comprises a first dumbbell pin 110 and a second dumbbell pin 120, wherein the first dumbbell pin 110 is clamped on the second dumbbell pin 120, and the first dumbbell pin 110 and the second dumbbell pin 120 can swing left and right; the fastener 200 is mounted at one end of the second dumbbell pin 120. When the hydraulic support pushes the middle groove, the middle groove bends, when the dumbbell pin is extruded, the first dumbbell pin 110 and the second dumbbell pin 120 bend, when the first dumbbell pin 110 and the second dumbbell pin 120 bend, the fastener 200 can prevent the first dumbbell pin 110 and the second dumbbell pin 120 from rotating in the middle groove, the middle groove connecting device prevents the dumbbell pin from unbalanced loading, the dumbbell pin and the middle groove clamping part 300 are prevented from extruding each other, the dumbbell pin falls off from the clamping part 300 of the middle groove, and even the clamping part 300 is enabled to have the notch.
As a preferred embodiment, referring to fig. 4, the first dumbbell pin 110 includes a first column 111 and a protruding head 112, the protruding head 112 is disposed at an end portion of one end of the first column 111, a clamping groove 121 is formed at an end portion of one end of the second dumbbell pin 120, and the protruding head 112 is clamped in the clamping groove 121. When the clamping groove 121 is clamped with the protruding head 112 at one end of the first column 111, the first dumbbell pin 110 and the second dumbbell pin 120 can swing left and right, when the two sections of middle grooves are connected, the two sections of middle grooves bend, the bending radian is between 0 ° and 10 °, the left and right swing amplitude of the first dumbbell pin 110 and the second dumbbell pin 120 is also between 0 ° and 10 °, when the bending radian of the two sections of middle grooves is larger than the left and right swing amplitude of the first dumbbell pin 110 and the second dumbbell pin 120, when the two sections of middle grooves are still in a bending state, the first dumbbell pin 110 and the second dumbbell pin 120 stop swinging left and right, when the two sections of middle grooves are bent for a long time, the protruding head 112 and the grooves are caused to rub each other, and when the two sections of middle grooves rub each other for a long time, the protruding head 112 and the grooves are caused to generate conditions, and simultaneously, the clamping parts of the first dumbbell pin 110 and the second dumbbell pin 120 and the middle grooves are caused to be clamped together, and the clamping parts 300 of the dumbbell pin and the two middle grooves are separated from the clamping parts 300 are caused to be worn out; if the left-right swing amplitude of the first dumbbell pin 110 and the second dumbbell pin 120 is larger than the bending radian of the two sections of middle grooves, the connection state of the dumbbell pins is loose, and the two sections of middle grooves cannot be well connected.
Preferably, referring to fig. 4 and 5, the raised head 112 includes a clamping post 1121 and a clamping ball 1122, the clamping post 1121 is connected to an end of the first post 111, and the clamping ball 1122 is disposed at an end of the clamping post 1121. The locking post 1121 is connected to the locking ball 1122, and is locked by the locking groove 121, and the protruding head 112 is not easily separated from the locking groove 121.
Preferably, the second dumbbell pin 120 includes a first half-split dumbbell pin 122 and a second half-split dumbbell pin 123, as shown in fig. 7, wherein the first half-split dumbbell pin 122 and the second half-split dumbbell pin 123 can be detached from each other; when the first half-split dumbbell pin 122 is separated from the second half-split dumbbell pin 123, the raised head 112 can be taken out of the groove of the second dumbbell pin 120, and when the first half-split dumbbell pin 122 is combined with the second half-split dumbbell pin 123, the groove of the second dumbbell pin 120 can be clamped with the raised head 112.
As a preferred embodiment, the clamping groove 121 includes a cylindrical groove 1211 and a spherical groove 1212, as shown in fig. 6, the cylindrical groove 1211 is used for clamping the clamping post 1121, a clearance fit exists between the cylindrical groove 1211 and the clamping post 1121, so that a certain movable space exists between the cylindrical groove 1211 and the clamping post 1121, the clamping post 1121 swings left and right in the cylindrical groove 1211, the length of the clamping post 1121 is greater than the length of the cylindrical groove 1211, when the length of the clamping post 1121 is equal to the length of the cylindrical groove 1211, the first dumbbell pin 110 and the second dumbbell pin 120 cannot swing left and right, meanwhile, a certain clearance exists between the first dumbbell pin 110 and the second dumbbell pin 120, when the first dumbbell pin 110 and the second dumbbell pin 120 rotate to generate bending, the end parts of the first dumbbell pin 110 and the second dumbbell pin 120 are prevented from being pressed against each other, and the abrasion of the dumbbell pins is reduced; the ball groove 1212 is configured to be engaged with the engaging ball 1122, and the diameter of the ball groove 1212 is larger than the diameter of the engaging ball 1122, so that the engaging ball 1122 can swing left and right in the ball groove 1212.
Preferably, the second dumbbell pin 120 is provided with pin keyways 124, the pin keyways 124 are uniformly distributed on the first half-split dumbbell pin 122 and the second half-split dumbbell pin 123, when the first half-split dumbbell pin 122 and the second half-split dumbbell pin 123 are combined, the pin keys can be clamped in the pin keyways 124, specifically, the surface of the second dumbbell pin 120 is provided with any one of the "U" -shaped pin keyways 124, the "" -shaped pin keyways 124 and the "O" -shaped pin keyways 124, when the first half-split dumbbell pin 122 and the second half-split dumbbell pin 123 are combined, the pin keys are clamped in the pin keyways 124, and the first half-split dumbbell pin 122 and the second half-split dumbbell pin 123 are clamped, so that the raised heads 112 are prevented from falling from the clamping grooves 121 of the second dumbbell pin 120.
Preferably, referring to fig. 9 to 12, the fastener includes a clamping block 210 and a spring pin 220, wherein the clamping block 210 is mounted at one end of the second dumbbell pin, and is used for clamping and combining the first half-split dumbbell pin and the second half-split dumbbell pin together, and the spring pin 220 is disposed at one end of the second dumbbell pin, and is used for fixing the clamping block 210 on the second dumbbell pin. Specifically, the end portion of one end of the second dumbbell pin refers to the end far away from the clamping groove of the second dumbbell pin, the end portion is provided with a positioning boss 125, a boss groove 214 is formed in the clamping block 210, the positioning boss 125 is clamped in the boss groove 214, the first half-cut dumbbell pin and the second half-cut dumbbell pin are clamped and combined together, a through hole is further formed in the end portion of one end of the second dumbbell pin, the spring pin 220 passes through the through hole and is arranged on the second dumbbell pin, the shape of the clamping block 210 is matched with the clamping portion 300 of the middle groove, when the clamping block 210 is clamped in the clamping portion 300 of the middle groove, the clamping block 210 cannot rotate in the clamping portion 300 of the middle groove, and when the clamping block 210 cannot rotate in the clamping portion 300 of the middle groove, the dumbbell pin connected with the clamping block 210 cannot rotate in the clamping portion 300 of the middle groove.
During the use, use first half cut dumbbell pin 122 and second half cut dumbbell pin 123 merge, will the boss 112 joint of first dumbbell pin 110 is in the draw-in groove 121 of second dumbbell pin 120, uses the key joint to be in the key groove 124, makes up whole dumbbell pin, installs the dumbbell pin in the joint portion 300 department of two sections middle part grooves, and joint portion 300 can shutoff the key groove 124 of second dumbbell pin 120 prevents that the key in the key groove 124 from dropping, and reuse fixture block 210 joint is in dumbbell pin one end tip, has both fastened first half cut dumbbell pin 122 and second half cut dumbbell pin 123 have had the joint portion 300 department of making the dumbbell pin fix at the middle part groove, have prevented that the joint portion 300 of dumbbell pin at the middle part groove from rotating, and then use spring pin 220 joint is in the tip of second dumbbell pin has prevented that fixture block 210 from following second dumbbell pin from the effect of making the dumbbell pin connect two sections middle part grooves has been reached.
The foregoing disclosure is illustrative of the present invention and is not to be construed as limiting the scope of the invention, but rather as providing for the full or partial flow of the liquid to be delivered to the patient in accordance with the invention.
Claims (8)
1. The middle groove connecting device is characterized by comprising a main body dumbbell pin and a fastener, wherein the main body dumbbell pin is clamped at the clamping part of the middle groove, the fastener is arranged at one end of the main body dumbbell pin and is simultaneously clamped at the clamping part of the middle groove, and the fastener is used for fastening the main body dumbbell pin and preventing the main body dumbbell pin from rotating at the clamping part of the middle groove;
the fastening piece comprises a clamping block and a spring pin, wherein the clamping block is clamped at a clamping part of the middle groove and is connected with the main dumbbell pin, and the spring pin is arranged on the clamping block and is connected with the main dumbbell pin at the same time to prevent the clamping block from falling off from the main dumbbell pin;
the clamping block is provided with a first bulge, a second bulge and a third bulge, and the first bulge, the second bulge and the third bulge are jointly enclosed and used for encircling the spring pin in the center so as to prevent the material and the spring pin from mutually collision and extrusion; the main body dumbbell pin comprises a first dumbbell pin and a second dumbbell pin, the first dumbbell pin is clamped on the second dumbbell pin, and the first dumbbell pin and the second dumbbell pin can swing left and right; the fastener is mounted at one end of the second dumbbell pin.
2. The mid-tank connection device of claim 1, wherein the first dumbbell pin comprises a first cylinder and a protruding head, the protruding head is disposed at an end of the first cylinder, a clamping groove is formed in an end of the second dumbbell pin, and the protruding head is clamped in the clamping groove.
3. The mid-tank connection device of claim 2, wherein the first dumbbell pin and the second dumbbell pin are capable of swinging from side to side through an amplitude of 0 ° to 10 °.
4. The mid-tank connection device of claim 3, wherein the nose comprises a snap post and a snap ball, the snap post being connected to an end of the first post, the snap ball being disposed at an end of the snap post.
5. The mid-groove connection of claim 4, wherein the second dumbbell pin comprises a first half-split dumbbell pin and a second half-split dumbbell pin, the first half-split dumbbell pin being detachable from the second half-split dumbbell pin.
6. The mid-way slot connection of claim 5, wherein the clamping slot comprises a cylindrical slot and a spherical slot, the cylindrical slot is used for clamping the clamping post, the cylindrical slot is in clearance fit with the clamping post, the length of the clamping post is greater than that of the cylindrical slot, the spherical slot is used for clamping the clamping ball, and the diameter of the spherical slot is greater than that of the clamping ball.
7. The mid-groove connection device of claim 6, wherein the second dumbbell pin is provided with pin keyways, the pin keyways are evenly distributed on the first half-split dumbbell pin and the second half-split dumbbell pin, and when the first half-split dumbbell pin and the second half-split dumbbell pin are combined, the pin keyways can be clamped in the pin keyways.
8. The mid-groove connection device of claim 7, wherein the fastener comprises a clamp block mounted at an end of the second dumbbell pin for clamping and joining the first and second split dumbbell pins together, and a spring pin disposed at an end of the second dumbbell pin for securing the clamp block to the second dumbbell pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110909617.5A CN113830495B (en) | 2021-08-09 | 2021-08-09 | Middle groove connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110909617.5A CN113830495B (en) | 2021-08-09 | 2021-08-09 | Middle groove connecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113830495A CN113830495A (en) | 2021-12-24 |
| CN113830495B true CN113830495B (en) | 2023-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110909617.5A Active CN113830495B (en) | 2021-08-09 | 2021-08-09 | Middle groove connecting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN113830495B (en) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8207596U1 (en) * | 1982-03-18 | 1982-07-29 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | SECURING DEVICE FOR SECURING THE TOGGLE CONNECTION OF GUTTER SHOTS OF A CHAIN SCRATCH CONVEYOR OR GUIDE SHOTS OF A WINNING MACHINE GUIDE AND THE LIKE |
| DE4128512C2 (en) * | 1991-08-28 | 1999-05-06 | Dbt Gmbh | Toggle lock for gutter shot gag connections and. the like |
| CN2205814Y (en) * | 1994-11-17 | 1995-08-23 | 西北煤矿机械一厂 | External dumbbell pin and dumbbell pin base for scraper conveyor |
| DE20307151U1 (en) * | 2003-05-07 | 2004-07-22 | Dbt Gmbh | Gag for gag connections and gag connection |
| CN201686282U (en) * | 2010-05-25 | 2010-12-29 | 中煤张家口煤矿机械有限责任公司 | Screw-in limit dumbbell component for scraper conveyer |
| CN202325658U (en) * | 2011-10-14 | 2012-07-11 | 淮南郑煤机舜立机械有限公司 | Dumbbell pin of scraper loader |
| CN202440084U (en) * | 2012-01-04 | 2012-09-19 | 三一重型装备有限公司 | Dumbbell connection component between slots and scraper conveyor and coal plough |
| CN202851070U (en) * | 2012-09-17 | 2013-04-03 | 宁夏天地奔牛实业集团有限公司 | Novel dumbbell pin structure of scrapper conveyor handpiece |
| CN203806540U (en) * | 2014-04-01 | 2014-09-03 | 中煤张家口煤矿机械有限责任公司 | Dumbbell assembly for extremely-thin seam scraper conveyer |
| CN204642936U (en) * | 2014-11-28 | 2015-09-16 | 宁夏天地奔牛实业集团有限公司 | New spherical location dumbbell pin |
| CN106115178B (en) * | 2016-07-27 | 2019-05-21 | 西安重装蒲白煤矿机械有限公司 | A kind of combined type connection end and preparation method thereof |
| CN208616690U (en) * | 2018-08-22 | 2019-03-19 | 王玉强 | A kind of reinforced limiting and fixing device of scraper conveyor for coal mines dumbbell pin |
| CN211970685U (en) * | 2020-02-24 | 2020-11-20 | 中煤张家口煤矿机械有限责任公司 | Cutting sleeve type coupling pin assembly for connecting headstock and transition groove |
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2021
- 2021-08-09 CN CN202110909617.5A patent/CN113830495B/en active Active
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| CN113830495A (en) | 2021-12-24 |
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