CN112660193A - Ore transportation traction mechanism - Google Patents

Ore transportation traction mechanism Download PDF

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Publication number
CN112660193A
CN112660193A CN202011335465.4A CN202011335465A CN112660193A CN 112660193 A CN112660193 A CN 112660193A CN 202011335465 A CN202011335465 A CN 202011335465A CN 112660193 A CN112660193 A CN 112660193A
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China
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movable
arc
block
shaped
groove
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CN202011335465.4A
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Chinese (zh)
Inventor
石卫祥
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Xinchang Qixing Street Chunqiang Machinery Factory
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Xinchang Qixing Street Chunqiang Machinery Factory
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Priority to CN202011335465.4A priority Critical patent/CN112660193A/en
Publication of CN112660193A publication Critical patent/CN112660193A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an ore transportation traction mechanism, in the process of ore transportation, firstly, a first arc-shaped connecting plate and an arc-shaped connecting groove on a second arc-shaped connecting plate are clamped, a T-shaped arc-shaped clamping block is clamped with an arc-shaped clamping groove at the side edge of the first arc-shaped connecting plate, the horizontal direction of the connection of a steel pin and a connecting sleeve in the traction mechanism can be limited and locked, and then, a traction auxiliary mechanism is locked by the limit, on one hand, the vertical direction of the connection of the steel pin and the connecting sleeve is clamped and locked, on the other hand, the traction connection of the steel pin and the connecting sleeve is more stable, so that in the transportation process of the mine car, the traction operation of the mine car is more stable and firm, the stable operation of the mine car conveying operation is ensured, the ore is prevented from shaking and scattering in the conveying operation, the economic loss is avoided, and the economic benefit is ensured.

Description

Ore transportation traction mechanism
Technical Field
The invention relates to the technical field of ore transportation equipment, in particular to an ore transportation traction mechanism.
Background
Mine transportation refers to underground transportation work of a mine, and mainly aims at transporting out coal, then transporting waste gangue out of the ground, transporting material equipment to a place where the material equipment is used, and transporting personnel to work and the like; mine transportation is characterized by large transportation volume, multiple varieties, narrow roadway, different transportation distances, complex line and short visible distance, thereby having complex operation, difficult maintenance and overhaul and high safety requirement; in mines with gas, coal dust and mine dust explosion risks, transportation operation must strictly comply with the regulations related to safety regulations; mainly comprises the following steps of; automatic loading equipment, trains, lines and shaft yards of mineral storage bins; when materials are transported, special loading and unloading equipment is not generally arranged, and a safety stop station is arranged in a line for transporting personnel.
The mine car is used for transporting mined ores, the mine car needs to be connected with the mine car through a traction constant force device in the transportation process and performs traction work on the mine car, a steel pin in a traction mechanism is usually inserted into a pin groove of the mine car to perform traction work in the prior art, and the connection between the steel pin and the pin groove cannot be well locked, so that the stability of the mine car is poor in the traction work process and the actual ore transportation work requirement cannot be met, the mine car can shake during the traction work, the ores can fall off, and the ore transportation work benefit is further reduced.
Disclosure of Invention
The invention aims to provide an ore transportation traction mechanism to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an ore transportation traction mechanism comprises a mine car main body, a fixing plate, a traction rod, a connecting sleeve and a limiting, locking and traction auxiliary mechanism;
one end of the mine car main body is provided with a fixing plate, the fixing plate is symmetrically provided with connecting sleeves, the connecting sleeves are provided with first arc-shaped connecting plates, and one sides of the first arc-shaped connecting plates are provided with arc-shaped clamping grooves;
a second arc-shaped connecting plate is arranged at one end of the traction rod, an arc-shaped connecting groove is formed in the bottom end face of the second arc-shaped connecting plate, steel pins are symmetrically arranged on the second arc-shaped connecting plate, and an annular locking groove is formed in the outer side wall of each steel pin;
a T-shaped arc-shaped fixture block is movably arranged in the second arc-shaped connecting plate, first reset springs are symmetrically arranged on the T-shaped arc-shaped fixture block, the other end of each first reset spring is arranged in the second arc-shaped connecting plate, a fixed square groove is formed in one side of each T-shaped arc-shaped fixture block, and a first fixing body is arranged on the second arc-shaped connecting plate;
the first fixing body is movably provided with a movable round block, one end of the movable round block is provided with a rotating shaft, the other end of the movable round block is provided with an arc extrusion chute, the other end of the rotating shaft is provided with a rotating cylinder, the outer side wall of the rotating cylinder is equidistantly provided with positioning round slots, the arc extrusion chute is movably provided with a movable fixture block, the movable fixture block is movably arranged in the first fixing body, protruding pieces are symmetrically arranged on two sides of the movable fixture block, and second reset springs are arranged on the protruding pieces;
the first fixed body is provided with a fixed block at the side position of the rotating cylinder, a first movable positioning column is movably arranged in the fixed block, one end of the first movable positioning column is provided with a movable inserting column, and the same end of the movable inserting column and the first movable positioning column is provided with a third reset spring;
the limiting, locking and traction auxiliary mechanism is arranged on the connecting sleeve.
Preferably, the limit locking traction auxiliary mechanism comprises a first movable limit insert block, a second movable limit insert block, a movable lantern ring, an arc-shaped movable groove, an extrusion block, a fixed circular groove, a second fixed body, a concave movable block, a second movable positioning column, an extrusion chute, a first movable extrusion rod and a second movable extrusion rod, wherein the first movable limit insert block is symmetrically arranged in the connecting sleeve, one end of the first movable limit insert block is provided with the second movable limit insert block, the second movable limit insert block is provided with a fourth reset spring at the same end with the first movable limit insert block, the other end of the second movable limit insert block is provided with an arc-shaped inclined plane, the movable lantern ring is sleeved on the connecting sleeve, the movable lantern ring is provided with the arc-shaped movable groove at a medium distance, the extrusion block is arranged in the arc-shaped movable groove, the fixed circular groove is arranged at one side of the movable lantern ring, the fixed body of second sets up on the fixed plate to the activity is provided with concave type movable block in the fixed body of second, the symmetry is provided with the second activity reference column on the concave type movable block, and one side symmetry of concave type movable block is provided with fifth reset spring, is provided with the extrusion chute in the concave type movable block, the avris position activity at concave type movable block in the fixed body of second is provided with first activity extrusion pole, the one end of first activity extrusion pole is provided with second activity extrusion pole, and second activity extrusion pole is provided with sixth reset spring with first activity extrusion pole same end to the other end of second activity extrusion pole is provided with the disk.
Preferably, the steel pins correspond to the connecting sleeves in arrangement positions and are arranged in the same number, and the diameters of the steel pins are equal to the inner diameters of the connecting sleeves.
Preferably, the first movable limiting insertion block corresponds to the annular locking groove in arrangement position, and the width of the cross section of the end part of the first movable limiting insertion block is equal to that of the cross section of the notch of the annular locking groove.
Preferably, the second movable positioning columns correspond to the fixed circular grooves in arrangement positions, are arranged in the same number of groups, and have the same diameter.
Compared with the prior art, the invention has the beneficial effects that:
in the ore transportation process, the first arc-shaped connecting plate and the arc-shaped connecting groove on the second arc-shaped connecting plate are clamped, the T-shaped arc-shaped clamping block is clamped with the arc-shaped clamping groove on the side of the first arc-shaped connecting plate, the horizontal direction in which the steel pin is connected with the connecting sleeve in the traction mechanism can be limited and locked, and the auxiliary traction mechanism is locked through the limit and the locking, so that on one hand, the vertical direction in which the steel pin is connected with the connecting sleeve is clamped and locked, on the other hand, the steel pin and the connecting sleeve are more stably in traction connection, further, the traction work of the mine car is more stable and firm in the transportation process, the stable operation of the mine car transportation work is ensured, the ore is prevented from shaking and scattering in the transportation process, the economic loss is avoided, and the economic benefit.
Drawings
FIG. 1 is a schematic view of a connection structure according to the present invention;
FIG. 2 is a top view of the fixing plate and drawbar connection structure according to the present invention;
FIG. 3 is a bottom view of the fixing plate and drawbar connection arrangement of the present invention;
FIG. 4 is a partial cross-sectional view of the internal connection structure of the drawbar, the first arc link and the second arc link in accordance with the present invention;
FIG. 5 is an enlarged view of a portion of the connection structure of FIG. 4 according to the present invention;
FIG. 6 is a schematic view of the connection structure of the movable round block and the rotating cylinder according to the present invention;
FIG. 7 is a partial cross-sectional top view of the connection structure of the connection sleeve and the limit locking traction assist mechanism of the present invention;
FIG. 8 is a partial cross-sectional bottom view of the connection structure of the connection sleeve and the limit locking traction assist mechanism of the present invention;
fig. 9 is a partially enlarged view of the connection structure of fig. 8 according to the present invention.
In the figure: the mine car comprises a main body 1 of the mine car, a fixing plate 2, a traction rod 3, a connecting sleeve 4, a first arc-shaped connecting plate 5, an arc-shaped clamping groove 6, a second arc-shaped connecting plate 7, an arc-shaped connecting groove 8, a steel pin 9, an annular locking groove 10, a T-shaped arc-shaped clamping block 11, a fixed square groove 12, a first fixed body 13, a movable round block 14, a rotating cylinder 15, a positioning round groove 16, a movable clamping block 17, a first movable positioning column 18, a movable inserting column 19, an arc-shaped extrusion chute 20, a limiting and locking traction auxiliary mechanism 21, a first movable limiting inserting block 2101, a second movable limiting inserting block 2102, a movable sleeve ring 2103, an arc-shaped movable groove 2104, an extrusion block 2105, a fixed round groove 2106, a second fixed body 2107, a concave movable block 2108, a second movable positioning column 2109, an extrusion chute 2110, a first movable extrusion rod 2111 and a.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work, belong to the scope of protection of the present invention.
Referring to fig. 1 to 9, the present invention provides a technical solution: the invention relates to an ore transportation traction mechanism, which comprises a mine car main body 1, a fixing plate 2, a traction rod 3, a connecting sleeve 4 and a limiting locking traction auxiliary mechanism 21;
one end of the mine car main body 1 is provided with a fixed plate 2, the fixed plate 2 is symmetrically provided with a connecting sleeve 4, the connecting sleeve 4 is provided with a first arc-shaped connecting plate 5, and one side of the first arc-shaped connecting plate 5 is provided with an arc-shaped clamping groove 6;
a second arc-shaped connecting plate 7 is arranged at one end of the traction rod 3, an arc-shaped connecting groove 8 is formed in the bottom end face of the second arc-shaped connecting plate 7, steel pins 9 are symmetrically arranged on the second arc-shaped connecting plate 7, and an annular locking groove 10 is formed in the outer side wall of each steel pin 9;
a T-shaped arc-shaped fixture block 11 is movably arranged in the second arc-shaped connecting plate 7, first return springs are symmetrically arranged on the T-shaped arc-shaped fixture block 11, the other ends of the first return springs are arranged in the second arc-shaped connecting plate 7, a fixed square groove 12 is arranged on one side of the T-shaped arc-shaped fixture block 11, and a first fixed body 13 is arranged on the second arc-shaped connecting plate 7;
a movable round block 14 is movably arranged in the first fixed body 13, one end of the movable round block 14 is provided with a rotating shaft, the other end of the movable round block is provided with an arc-shaped extrusion chute 20, the other end of the rotating shaft is provided with a rotating cylinder 15, the outer side wall of the rotating cylinder 15 is equidistantly provided with positioning round grooves 16, the arc-shaped extrusion chute 20 is movably provided with a movable fixture block 17, the movable fixture block 17 is movably arranged in the first fixed body 13, protruding pieces are symmetrically arranged on two sides of the movable fixture block 17, and second reset springs are arranged on the protruding pieces;
a fixed block is arranged at the side position of the rotating cylinder 15 of the first fixed body 13, a first movable positioning column 18 is movably arranged in the fixed block, one end of the first movable positioning column 18 is provided with a movable inserting column 19, and the same end of the movable inserting column 19 as the first movable positioning column 18 is provided with a third return spring;
the limit locking traction auxiliary mechanism 21 is arranged on the connecting sleeve 4.
Furthermore, the steel pins 9 correspond to the connecting sleeve 4 in arrangement position and are arranged in the same number of groups, and the diameter of the steel pins 9 is equal to the inner diameter of the connecting sleeve 4.
Further, the first movable limit insert 2101 corresponds to the annular locking groove 10, and the cross-sectional width of the end of the first movable limit insert 2101 is equal to the cross-sectional width of the notch of the annular locking groove 10.
Furthermore, the limit locking traction auxiliary mechanism 21 comprises a first movable limit insert 2101, a second movable limit insert 2102, a movable sleeve ring 2103, an arc-shaped movable groove 2104, an extrusion block 2105, a fixed circular groove 2106, a second fixed body 2107, a concave movable block 2108, a second movable positioning column 2109, an extrusion chute 2110, a first movable extrusion rod 2111 and a second movable extrusion rod 2112, wherein the first movable limit insert 2101 is symmetrically arranged in the connecting sleeve 4, one end of the first movable limit insert 2101 is provided with the second movable limit insert 2102, the second movable limit insert 2101 is provided with a fourth return spring at the same end with the first movable limit insert 2101, the other end of the second movable limit insert 2102 is provided with an arc-shaped inclined surface, the movable sleeve ring 2103 is sleeved on the connecting sleeve 4, the arc-shaped movable groove 2104 is equidistantly arranged in the movable sleeve 2103, the extrusion block 2105 is arranged in the arc-shaped movable groove, the fixed circular groove 2106 is arranged on one side of the movable sleeve ring 2103, the second fixed body 2107 is arranged on the fixed plate 2, the second fixed body 2107 is movably provided with a concave movable block 2108, the concave movable block 2108 is symmetrically provided with a second movable positioning column 2109, one side of the concave movable block 2108 is symmetrically provided with a fifth return spring, the concave movable block 2108 is internally provided with an extrusion chute 2110, the second fixed body 2107 is movably provided with a first movable extrusion rod 2111 at the side position of the concave movable block 2108, one end of the first movable extrusion rod 2111 is provided with a second movable extrusion rod 2112, the second movable extrusion rod 2112 is provided with a sixth return spring at the same end with the first movable extrusion rod 2111, and the other end of the second movable extrusion rod 2112 is provided with a circular plate.
Furthermore, the second movable positioning columns 2109 correspond to the fixed circular slots 2106 in arrangement position, are arranged in the same number of groups, and have the same diameter.
The working principle is as follows: for the mine car transportation traction structure provided by the invention, when traction connection is carried out, firstly, the arranged steel pin 9 is inserted into the connecting sleeve 4, meanwhile, the first arc-shaped connecting plate 5 is clamped in the arc-shaped connecting groove 8, then the T-shaped arc-shaped fixture block 11 is pressed, the T-shaped arc-shaped fixture block 11 is inserted into the arc-shaped clamping groove 6 at one side of the first arc-shaped connecting plate 5, then the rotating cylinder 15 is adjusted, the movable inserting column 19 is pulled while the rotating cylinder 15 is adjusted, the movable inserting column 19 drives the first movable positioning column 18 to be separated from the positioning circular groove 16 at the side of the rotating cylinder 15, the rotating cylinder 15 is adjusted to enable the arc-shaped extrusion chute 20 arranged in the adjusting rotating cylinder 15 to extrude the movable fixture block 17, the movable fixture block 17 is inserted into the fixed square groove 12 on the T-shaped arc-shaped fixture block 11, then the movable inserting column 19 is loosened, the first movable positioning column 18 is clamped in the positioning circular groove 16 under the action, then the T-shaped arc-shaped clamping block 11 is clamped and fixed with the arc-shaped clamping groove 6, then the movable sleeve ring 2103 in the limiting and locking auxiliary mechanism 21 is rotated, along with the rotation of the movable sleeve ring 2103, the extrusion block 2105 in the arc-shaped movable groove 2104 extrudes the second movable limiting insert block 2102, the second movable limiting insert block 2102 pushes the first movable limiting insert block 2101 to be inserted into the annular locking groove 10 at the side of the steel pin 9, until the fixed circular groove 2106 at one side of the movable sleeve ring 2103 reaches the position of the second movable positioning column 2109, the second movable positioning column 2109 is clamped and connected in the fixed circular groove 2106 under the action of a fifth reset spring, so that the position of the movable sleeve ring 2103 is fixed, further the first movable limiting insert block 2101 is clamped and fixed with the annular locking groove 10, and the stability and firmness of the traction work of the mine car are ensured by limiting and locking the traction mechanism in the vertical and horizontal directions, therefore, in the process of ore transportation, firstly, the first arc-shaped connecting plate 5 and the arc-shaped connecting groove 8 on the second arc-shaped connecting plate 7 are clamped, the T-shaped arc-shaped clamping block 11 and the arc-shaped clamping groove 6 at the side of the first arc-shaped connecting plate 5 are clamped, the horizontal direction of the connection between the steel pin 9 and the connecting sleeve 4 in the traction mechanism can be limited and locked, and then the auxiliary traction mechanism 21 is locked through the limit, on one hand, the vertical direction of the connection of the steel pin 9 and the connecting sleeve 4 is clamped and locked, on the other hand, the traction connection of the steel pin 9 and the connecting sleeve 4 is more stable, and further, in the transportation process of the mine car, the traction operation of the mine car is more stable and firm, the stable operation of the mine car conveying operation is ensured, the ore is prevented from shaking and scattering in the conveying operation, the economic loss is avoided, and the economic benefit is ensured.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides an ore transportation drive mechanism which characterized in that: comprises a mine car main body (1), a fixing plate (2), a traction rod (3), a connecting sleeve (4) and a limiting and locking traction auxiliary mechanism (21);
one end of the mine car main body (1) is provided with a fixed plate (2), the fixed plate (2) is symmetrically provided with a connecting sleeve (4), the connecting sleeve (4) is provided with a first arc-shaped connecting plate (5), and one side of the first arc-shaped connecting plate (5) is provided with an arc-shaped clamping groove (6);
a second arc-shaped connecting plate (7) is arranged at one end of the draw bar (3), an arc-shaped connecting groove (8) is formed in the bottom end face of the second arc-shaped connecting plate (7), steel pins (9) are symmetrically arranged on the second arc-shaped connecting plate (7), and an annular locking groove (10) is formed in the outer side wall of each steel pin (9);
a T-shaped arc-shaped fixture block (11) is movably arranged in the second arc-shaped connecting plate (7), first reset springs are symmetrically arranged on the T-shaped arc-shaped fixture block (11), the other ends of the first reset springs are arranged in the second arc-shaped connecting plate (7), a fixed square groove (12) is arranged on one side of the T-shaped arc-shaped fixture block (11), and a first fixed body (13) is arranged on the second arc-shaped connecting plate (7);
a movable round block (14) is movably arranged in the first fixed body (13), one end of the movable round block (14) is provided with a rotating shaft, the other end of the movable round block is provided with an arc-shaped extrusion chute (20), the other end of the rotating shaft is provided with a rotating cylinder (15), positioning round grooves (16) are equidistantly arranged on the outer side wall of the rotating cylinder (15), a movable clamping block (17) is movably arranged on the arc-shaped extrusion chute (20), the movable clamping block (17) is movably arranged in the first fixed body (13), protruding pieces are symmetrically arranged on two sides of the movable clamping block (17), and a second reset spring is arranged on each protruding piece;
a fixed block is arranged at the side position of the rotating cylinder (15) of the first fixed body (13), a first movable positioning column (18) is movably arranged in the fixed block, a movable inserting column (19) is arranged at one end of the first movable positioning column (18), and a third return spring is arranged at the same end of the movable inserting column (19) and the first movable positioning column (18);
the limiting locking traction auxiliary mechanism (21) is arranged on the connecting sleeve (4).
2. A mineral haulage mechanism according to claim 1, wherein: the limiting, locking and traction auxiliary mechanism (21) comprises a first movable limiting insert block (2101), a second movable limiting insert block (2102), a movable sleeve ring (2103), an arc-shaped movable groove (2104), an extrusion block (2105), a fixed circular groove (2106), a second fixed body (2107), a concave movable block (2108), a second movable positioning column (2109), an extrusion chute (2110), a first movable extrusion rod (2111) and a second movable extrusion rod (2112), wherein the first movable limiting insert block (2101) is symmetrically arranged in the connecting sleeve (4), one end of the first movable limiting insert block (2101) is provided with the second movable limiting insert block (2102), the second movable limiting insert block (2102) is provided with a fourth return spring at the same end as the first movable limiting insert block (2101), the other end of the second movable limiting insert block (2102) is provided with an arc-shaped inclined surface, the movable sleeve ring (3) is sleeved on the connecting sleeve (2104), an arc-shaped movable groove (2104) is equidistantly arranged in the movable sleeve ring (2103), an extrusion block (2105) is arranged in the arc-shaped movable groove (2104), a fixed circular groove (2106) is arranged on one side of the movable sleeve ring (2103), the second fixed body (2107) is arranged on the fixed plate (2), a concave movable block (2108) is movably arranged in the second fixed body (2107), second movable positioning columns (2109) are symmetrically arranged on the concave movable block (2108), fifth return springs are symmetrically arranged on one side of the concave movable block (2108), an extrusion chute (2110) is arranged in the concave movable block (2108), a first movable extrusion rod (2111) is movably arranged at the side position of the concave movable block (2108) in the second fixed body (2107), a second movable extrusion rod (2112) is arranged at one end of the first movable extrusion rod (2111), and a sixth return spring is arranged at the same end of the second movable extrusion rod (2112) as the first movable extrusion rod (2111), and the other end of the second movable extrusion rod (2112) is provided with a circular sheet.
3. A mineral haulage mechanism according to claim 1, wherein: the steel pins (9) correspond to the connecting sleeve (4) in arrangement position and are arranged in the same number, and the diameter of each steel pin (9) is equal to the inner diameter of the connecting sleeve (4).
4. A mineral haulage mechanism according to claim 2, wherein: the first movable limiting insertion block (2101) corresponds to the annular locking groove (10) in arrangement position, and the width of the section of the end part of the first movable limiting insertion block (2101) is equal to that of the section of the notch of the annular locking groove (10).
5. A mineral haulage mechanism according to claim 2, wherein: the second movable positioning columns (2109) correspond to the fixed circular grooves (2106) in arrangement positions and are arranged in the same number of groups, and the diameters of the second movable positioning columns and the fixed circular grooves are equal.
CN202011335465.4A 2020-11-25 2020-11-25 Ore transportation traction mechanism Pending CN112660193A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011335465.4A CN112660193A (en) 2020-11-25 2020-11-25 Ore transportation traction mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011335465.4A CN112660193A (en) 2020-11-25 2020-11-25 Ore transportation traction mechanism

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Publication Number Publication Date
CN112660193A true CN112660193A (en) 2021-04-16

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CN202011335465.4A Pending CN112660193A (en) 2020-11-25 2020-11-25 Ore transportation traction mechanism

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114426184A (en) * 2022-03-09 2022-05-03 南京卓基工业设备有限公司 Scrap steel limiting and transferring basket trolley capable of bearing weighing and metering and weighing method thereof

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Publication number Priority date Publication date Assignee Title
US6691883B1 (en) * 1998-11-20 2004-02-17 Westinghouse Air Brake Co. One piece liner member for use in railway coupling devices
US20070257469A1 (en) * 2006-05-05 2007-11-08 Burns David J Vertically and horizontally loading trailer latching assembly
CN101722805A (en) * 2008-10-20 2010-06-09 尹贻广 Rotation-swing type two-freedom traction seat
WO2014063224A1 (en) * 2012-10-25 2014-05-01 Power Pin Inc. Hitch lock
CN108482413A (en) * 2018-05-23 2018-09-04 丹阳市博尔瑞游乐设备有限公司 A kind of dome car draft gear
CN209505747U (en) * 2019-01-29 2019-10-18 宋文伟 A kind of mine car collision type connection and trip gear
CN210149324U (en) * 2019-06-05 2020-03-17 杨志伟 Upper device for upper track after coal mine car falls off track

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6691883B1 (en) * 1998-11-20 2004-02-17 Westinghouse Air Brake Co. One piece liner member for use in railway coupling devices
US20070257469A1 (en) * 2006-05-05 2007-11-08 Burns David J Vertically and horizontally loading trailer latching assembly
CN101722805A (en) * 2008-10-20 2010-06-09 尹贻广 Rotation-swing type two-freedom traction seat
WO2014063224A1 (en) * 2012-10-25 2014-05-01 Power Pin Inc. Hitch lock
CN108482413A (en) * 2018-05-23 2018-09-04 丹阳市博尔瑞游乐设备有限公司 A kind of dome car draft gear
CN209505747U (en) * 2019-01-29 2019-10-18 宋文伟 A kind of mine car collision type connection and trip gear
CN210149324U (en) * 2019-06-05 2020-03-17 杨志伟 Upper device for upper track after coal mine car falls off track

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114426184A (en) * 2022-03-09 2022-05-03 南京卓基工业设备有限公司 Scrap steel limiting and transferring basket trolley capable of bearing weighing and metering and weighing method thereof

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