CN110239581B - Traction device with buffering function for railway locomotive - Google Patents
Traction device with buffering function for railway locomotive Download PDFInfo
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- CN110239581B CN110239581B CN201910591117.4A CN201910591117A CN110239581B CN 110239581 B CN110239581 B CN 110239581B CN 201910591117 A CN201910591117 A CN 201910591117A CN 110239581 B CN110239581 B CN 110239581B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/04—Draw-gear combined with buffing appliances
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/20—Details; Accessories
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Abstract
The invention provides a traction device with a buffering function for a railway locomotive, which comprises a traction block A, an air cylinder, a locking block, a traction block B, a traction block C, a damping groove, a T-shaped block, a T-shaped groove, a spring A, a round nut, a damper, a spring B, a touch device A and a touch device B, wherein the air cylinder is arranged on the traction block A; the top of the traction block A is fixedly provided with an air cylinder through a bolt, the top of the air cylinder is integrally provided with a magnetic plate structure, and the outer side of the magnetic plate structure is fixedly provided with a locking block through adsorption; the tops of the adjacent edges of the traction block A and the traction block B are both provided with guide jacks, and the locking block is arranged in the guide jack at the top of the traction block A through an air cylinder; through being provided with T type piece, T type groove and bumper shock absorber, provide stable good buffer capacity for draw gear for cushion inertial impact force, and can interlock the cooperation through the dual setting in T type piece and T type groove, can stabilize the direction of buffering.
Description
Technical Field
The invention relates to the technical field of trains, in particular to a traction device with a buffering function for a railway locomotive.
Background
The traction device is used for connecting two ends of a train wagon or a locomotive, has the functions of connection, traction and buffering, is changed according to the development of the society, is gradually improved into complex structures such as starting self-locking and the like from the previous hook structure, can be self-locked in a mode of moving a locomotive under the condition of accurate alignment of the train, and has high safety performance.
Based on the above, the inventor finds that the traction device used at present is poor in applicability, needs to be connected through matching with the corresponding traction device after certain improvement on different vehicle types such as train and motor cars, is complex in structure and high in cost, needs to be continuously locked through the electric cylinder, and cannot be directly used under the condition of no power supply.
In view of the above, the present invention provides a draft gear with a buffer function for a railway locomotive, which is improved in view of the conventional structure and disadvantages, so as to achieve the purpose of higher practical value.
Disclosure of Invention
Problem (A)
In summary, the invention provides a traction device with a buffering function for a railway locomotive, which solves the problems that the applicability is poor, the traction device is required to be matched with a corresponding traction device for connection after certain improvement is carried out on different types of trains, motor cars and the like, the self-locking device is complex in structure and high in cost, auxiliary locking is required to be continuously carried out through an electric cylinder, and the traction device cannot be directly used under the condition of no power supply.
(II) technical scheme
The invention provides a traction device with a buffering function for a railway locomotive, which is used for traction of the locomotive. The invention provides a traction device with a buffer function for a railway locomotive, which specifically comprises:
the device comprises a traction block A, an air cylinder, a locking block, a switch groove, a bottom cover, a contactor, a traction block B, an insertion block, an insertion groove, a guide insertion hole, a self-locking block, a top cover, a traction block C, a damping groove, a T-shaped block, a T-shaped groove, a spring A, a round nut, a damper, a connecting block, an auxiliary damper, a spring B, a touch device A and a touch device B; the top of the traction block A is fixedly provided with an air cylinder through a bolt, the top of the air cylinder is integrally provided with a magnetic plate structure, and the outer side of the magnetic plate structure is fixedly provided with a locking block through adsorption; the tops of the adjacent edges of the traction block A and the traction block B are both provided with guide jacks, and the locking block is arranged in the guide jack at the top of the traction block A through an air cylinder; the bottom of the traction block A is provided with a switch groove, the inner side of the switch groove is fixedly provided with a fixing strip through a bolt, and the contactor is fixedly arranged outside the fixing strip through a structure clamp; the traction block A and the traction block B are adjacent to the bottom of the edge and are integrally provided with an insertion block, a slot is formed in one side of the insertion block, and the traction block A can be inserted into the slot through the insertion block and is attached to the traction block B.
Preferably, the outer side of the switch groove is fixedly provided with a bottom cover through a bolt, and the middle of one side of the bottom cover is provided with a U-shaped groove; and the two-pole contact of the contactor is provided with an electric wire which penetrates through the bottom cover and is connected in series with the cylinder to be connected with a locomotive power supply.
Preferably, one end of the touch device A is integrally provided with a thread structure; one end of the touch device B is provided with a screw hole; switch groove one side is run through traction block A and is seted up cascaded through-hole, and touch device B activity sets up in the inboard through-hole of switch groove, and touch device A passes spring B and cascaded through-hole and passes through threaded connection and touch device B fixed connection, and touch device B outside integral type is provided with the lug structure.
Preferably, two sets of damping grooves are all seted up with the adjacent face top of traction block B to traction block C, and are provided with the bumper shock absorber through welded fastening in the damping groove of traction block C both sides, and the bumper shock absorber outer end integral type is provided with former plate structure.
Preferably, the bottom of the traction block C is integrally provided with a T-shaped block, and a T-shaped groove is formed at the position where the traction block B is adjacent to the traction block C; t type groove has been seted up to traction block C bottom, and traction block B and traction block C department integral type that faces mutually are provided with T type piece, and traction block C and traction block B insert the laminating of T type groove through T type piece.
Preferably, the pull block C and the adjacent both sides homogeneous style protrusion of pull block B are provided with platelike structure, and all seted up the through-hole in the middle of the platelike structure, and pull block C and pull block B and pass pull block C through-hole through the bolt in proper order, pull block B through-hole and spring A and insert the round nut and carry out fixed connection, and the round nut sets up nut and bolt double thread locking through the outside.
Preferably, the top of the traction block B is provided with a groove, the top of the groove is fixedly provided with a top cover through a bolt, and the middle of the top cover is provided with a square hole; the self-locking block is movably arranged in the groove through the top cover, a plurality of groups of springs are fixedly arranged at the bottom of the self-locking block through welding, and a button structure is integrally arranged in the middle of the top of the self-locking block and penetrates through the square hole.
Preferably, the connection blocks are arranged on the outer sides of the traction block A and the traction block C in a movable mode through rotating shafts, multiple groups of through holes are formed in the two sides of each connection block, auxiliary dampers are arranged on the two sides of the rotating shafts of the traction block A and the traction block C in a fixed mode through welding, and the end portions of the auxiliary dampers are arranged to be arc-shaped structures.
(III) advantageous effects
The invention provides a traction device with a buffering function for a railway locomotive, which provides stable and good buffering capacity for the traction device by arranging a T-shaped block, a T-shaped groove and a shock absorber, is used for buffering inertial impact force, can be interlocked and matched by double arrangement of the T-shaped block and the T-shaped groove, and can stabilize the buffering direction.
Secondly, spring A and round nut's setting provides the function that cushions the pulling force for draw gear to make the connection of traction block B and traction block C accomplish through outside setting, and then reduced the preparation degree of difficulty and the cost of traction block B and traction block C, and, round nut and nut carry out two nut fastenings, and stability can avoid the locomotive to send out to become the disjointed phenomenon when moving by force.
Moreover, supplementary bumper shock absorber's setting can steadily effectual buffering draw gear sway the strength that produces when turning, is favorable to stabilizing the crooked degree between traction block A, traction block B and traction block C and the connecting block, effectively prevents to turn and causes the damage to draw gear formation torsion to the tip of supplementary bumper shock absorber is the arc setting, can reduce because of the frictional force that produces between the supplementary bumper shock absorber of change of angle and the connecting block.
In addition, cylinder, locking piece and from the locking piece, for draw gear's use provides the ability of selecting, can carry out automatic connection auto-lock through setting up the circuit, also can carry out plain type installation through manual installation, it all can use to have the power.
Drawings
FIG. 1 is a schematic view of a front view of a full-section structure according to an embodiment of the present invention;
FIG. 2 is a schematic top view of an embodiment of the present invention;
FIG. 3 is a schematic perspective view of a lock block according to an embodiment of the present invention;
FIG. 4 is a schematic perspective view of a bottom cover according to an embodiment of the present invention;
FIG. 5 is a schematic perspective view of a portion of a traction block B according to an embodiment of the present invention;
FIG. 6 is a schematic perspective view of a traction block C according to an embodiment of the present invention;
FIG. 7 is an enlarged partial structural view of part A in the embodiment of the present invention;
FIG. 8 is a schematic perspective view illustrating a touch device according to an embodiment of the present invention;
in fig. 1 to 8, the correspondence between the part names or lines and the reference numbers is:
1-traction block A, 101-air cylinder, 102-locking block, 103-switch groove, 104-bottom cover, 105-contactor, 2-traction block B, 201-plug block, 202-slot, 203-guide jack, 204-self-locking block, 205-top cover, 3-traction block C, 301-damping groove, 302-T-shaped block, 303-T-shaped groove, 304-spring A, 305-round nut, 306-damper, 4-connecting block, 401-auxiliary damper, 5-spring B, 501-touch device A, 502-touch device B.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance 0.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Please refer to fig. 1 to 8.
In order to solve the problems that in the prior art, the traction device with the buffering function for the railway locomotive is poor in applicability, needs to be connected by matching with a corresponding traction device after certain improvement on different types of trains such as a train and a motor car, has a complex structure and high cost, needs to be continuously assisted and locked by an electric cylinder, and cannot be directly used under the condition of no power supply, the invention provides the traction device with the buffering function for the railway locomotive, which is used for traction of the locomotive, and comprises the following components: the device comprises a traction block A1, an air cylinder 101, a locking block 102, a switch groove 103, a bottom cover 104, a contactor 105, a traction block B2, an insertion block 201, a slot 202, a guide insertion hole 203, a self-locking block 204, a top cover 205, a traction block C3, a shock absorption groove 301, a T-shaped block 302, a T-shaped groove 303, a spring A304, a round nut 305, a shock absorber 306, a connecting block 4, an auxiliary shock absorber 401, a spring B5, a touch device A501 and a touch device B502; the top of the traction block A1 is fixedly provided with an air cylinder 101 through a bolt, the top of the air cylinder 101 is integrally provided with a magnetic plate structure, and the outer side of the magnetic plate structure is fixedly provided with a locking block 102 through adsorption; the tops of the adjacent edges of the traction block A1 and the traction block B2 are both provided with guide jacks 203, and the locking block 102 is arranged in the guide jacks 203 at the top of the traction block A1 through the air cylinder 101; the bottom of the traction block A1 is provided with a switch groove 103, the inner side of the switch groove 103 is fixedly provided with a fixed strip through a bolt, and the contactor 105 is fixedly arranged outside the fixed strip through a structure clamp; the adjacent edge bottom homogeneous body of traction block A1 and traction block B2 is provided with inserted block 201, and inserted block 201 one side has all been seted up slot 202, and traction block A1 accessible inserted block 201 slot 202 with the laminating of traction block B2.
Wherein, the outer side of the switch groove 103 is fixedly provided with a bottom cover 104 through bolts, and the middle of one side of the bottom cover 104 is provided with a U-shaped groove; the contactor 105 two pole contact set wires are passed through the bottom cover 104 and serially through the cylinder 101 for connection to the locomotive power supply, and the contact 105 is configured to make a path by touching to complete the connection.
One end of the touch device A501 is integrally provided with a thread structure; one end of the touch device B502 is provided with a screw hole; switch slot 103 one side is run through traction block A1 and is seted up cascaded through-hole, and touch device B502 activity sets up in the inboard through-hole of switch slot 103, and touch device A501 passes spring B5 and cascaded through-hole and passes through threaded connection and touch device B502 fixed connection, and touch device B502 outside integral type is provided with the lug structure, can start contactor 105 in a flexible way through setting up touch device B502.
Wherein, two sets of shock attenuation grooves 301 have all been seted up with the adjacent face top of traction block B2 to traction block C3, and are provided with bumper shock absorber 306 through welded fastening in the shock attenuation groove 301 of traction block C3 both sides, and bumper shock absorber 306 outer end integral type is provided with the original plate structure, can cushion impact force through setting up bumper shock absorber 306.
The bottom of the traction block C3 is integrally provided with a T-shaped block 302, and a T-shaped groove 303 is formed at the position where the traction block B2 is adjacent to the traction block C3; t type groove 303 has been seted up to traction block C3 bottom, and traction block B2 and traction block C3 adjacent department integral type are provided with T type piece 302, and traction block C3 and traction block B2 insert the laminating of T type groove 303 through T type piece 302, can lead the shift position through setting up T type piece 302 and T type groove 303.
Wherein, the homogeneous style protrusion of the adjacent both sides homogeneous body of traction block C3 and traction block B2 is provided with platelike structure, and the through-hole has all been seted up in the middle of the platelike structure, and traction block C3 passes traction block C3 through-hole through the bolt in proper order with traction block B2, traction block B2 through-hole and spring A304 insert round nut 305 and carry out fixed connection, and round nut 305 sets up nut and bolt double thread locking through the outside, can cushion traction tension through setting up spring A304.
The top of the traction block B2 is provided with a groove, the top of the groove is fixedly provided with a top cover 205 through a bolt, and the middle of the top cover 205 is provided with a square hole; from locking piece 204 through top cap 205 activity setting in the recess, and from locking piece 204 bottom through welded fastening be provided with the multiunit spring, and pass the quad slit integral type in the middle of the locking piece 204 top and be provided with the button structure, can relieve the connection of traction block B2 and traction block A1 through setting up from locking piece 204.
Wherein, the traction block A1 and the traction block C3 outside all are provided with connecting block 4 through the pivot activity, and the multiunit through-hole has been seted up to connecting block 4 both sides, and traction block A1 and traction block C3 pivot department both sides all are provided with supplementary bumper shock absorber 401 through welded fastening, and supplementary bumper shock absorber 401 tip sets up to cambered surface structure, can assist connecting block 4 and traction block A1 and traction block C3's position balance through setting up supplementary bumper shock absorber 401.
The specific use mode and function of the embodiment are as follows: in the invention, the top of a traction block A1 is fixedly provided with an air cylinder 101 through a bolt, the top of the air cylinder 101 is integrally provided with a magnetic plate structure, and the outer side of the magnetic plate structure is fixedly provided with a locking block 102 through adsorption; the tops of the adjacent edges of the traction block A1 and the traction block B2 are both provided with a guide insertion hole 203, and the locking block 102 is arranged in the guide insertion hole 203 at the top of the traction block A1 through the air cylinder 101; a switch groove 103 is formed in the bottom of the traction block A1, a fixing strip is fixedly arranged on the inner side of the switch groove 103 through bolts, and the contactor 105 is fixedly arranged outside the fixing strip through structure clamping; the bottoms of the adjacent sides of the traction block A1 and the traction block B2 are integrally provided with an insert block 201, one side of the insert block 201 is provided with a slot 202, and the traction block A1 is inserted into the slot 202 through the insert block 201 and is attached to the traction block B2; a bottom cover 104 is fixedly arranged on the outer side of the switch groove 103 through bolts, and a U-shaped groove is formed in the middle of one side of the bottom cover 104; two pole contacts of the contactor 105 are provided with electric wires which penetrate through the bottom cover 104 and are connected in series with the cylinder 101 to be connected with a locomotive power supply; one end of the touch device A501 is integrally provided with a thread structure; one end of the touch device B502 is provided with a screw hole; a stepped through hole is formed in one side of the switch slot 103 by penetrating through the traction block A1, the touch device B502 is movably arranged in the through hole on the inner side of the switch slot 103, the touch device A501 penetrates through the spring B5 and the stepped through hole to be fixedly connected with the touch device B502 through threaded connection, and a lug structure is integrally arranged on the outer side of the touch device B502; two groups of damping grooves 301 are formed in the tops of the adjacent surfaces of the traction block C3 and the traction block B2, dampers 306 are fixedly arranged in the damping grooves 301 on the two sides of the traction block C3 through welding, and an original plate structure is integrally arranged at the outer ends of the dampers 306; a T-shaped block 302 is integrally arranged at the bottom of the traction block C3, and a T-shaped groove 303 is formed at the position where the traction block B2 is adjacent to the traction block C3; a T-shaped groove 303 is formed in the bottom of the traction block C3, a T-shaped block 302 is integrally arranged at the position, adjacent to the traction block B2 and the traction block C3, of the traction block C3, the traction block B2 is inserted into the T-shaped groove 303 through the T-shaped block 302 and is attached to the traction block B2; a plate-shaped structure is uniformly and convexly arranged on two adjacent sides of the traction block C3 and the traction block B2, through holes are formed in the middle of the plate-shaped structure, the traction block C3 and the traction block B2 sequentially penetrate through the through holes of the traction block C3 through bolts, the through holes of the traction block B2 and a spring A304 are inserted into a round nut 305 for fixed connection, and the round nut 305 is locked with the bolts through double threads by nuts arranged on the outer side; a groove is formed in the top of the traction block B2, a top cover 205 is fixedly arranged on the top of the groove through a bolt, and a square hole is formed in the middle of the top cover 205; the self-locking block 204 is movably arranged in the groove through a top cover 205, a plurality of groups of springs are fixedly arranged at the bottom of the self-locking block 204 through welding, and a button type structure is integrally arranged in the middle of the top of the self-locking block 204 through a square hole; the outer sides of the traction block A1 and the traction block C3 are both movably provided with connecting blocks 4 through rotating shafts, two sides of each connecting block 4 are provided with a plurality of groups of through holes, two sides of the rotating shafts of the traction block A1 and the traction block C3 are both fixedly provided with auxiliary shock absorbers 401 through welding, and the end parts of the auxiliary shock absorbers 401 are arranged to be arc-surface structures; respectively fixing a traction block A1 and a traction block C3 at the connection position of a locomotive group by penetrating through a through hole of a connecting block 4 through bolts, and positioning at the same horizontal height; the traction block A1 is communicated with a power supply in a locomotive group through a line and is provided with a switch, the locomotive transmission group is moved to enable the traction block A1 and the traction block B2 to be close to each other, when the traction block A1 is in contact with the traction block B2, the traction block B2 pushes the touch device A501, the contactor 105 is closed through a convex block structure of the touch device B502 to form a passage, the cylinder 101 is electrified to be started, the push lock block 102 penetrates through the guide jack 203 to be clamped with the self-lock block 204 to complete splicing, the power of the cylinder 101 can be cut off at the power supply after the splicing is completed, so that the power is saved, when the connection needs to be disconnected, the top cover 205 is pressed, and the lock block 102 is manually pushed back to be fixed with the magnetic plate at the end of the cylinder 101 in.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. A traction device with a buffer function for a railway locomotive for traction of the locomotive, comprising: the device comprises a traction block A (1), an air cylinder (101), a locking block (102), a switch groove (103), a bottom cover (104), a contactor (105), a traction block B (2), an insert block (201), a slot (202), a guide jack (203), a self-locking block (204), a top cover (205), a traction block C (3), a damping groove (301), a T-shaped block (302), a T-shaped groove (303), a spring A (304), a round nut (305), a shock absorber (306), a connecting block (4), an auxiliary shock absorber (401), a spring B (5), a touch device A (501) and a touch device B (502); the top of the traction block A (1) is fixedly provided with an air cylinder (101) through a bolt, the top of the air cylinder (101) is integrally provided with a magnetic plate structure, and the outer side of the magnetic plate structure is fixedly provided with a locking block (102) through adsorption; the tops of the adjacent edges of the traction block A (1) and the traction block B (2) are both provided with guide jacks (203), and the locking block (102) is arranged in the guide jacks (203) at the top of the traction block A (1) through the air cylinder (101); the bottom of the traction block A (1) is provided with a switch groove (103), the inner side of the switch groove (103) is fixedly provided with a fixing strip through a bolt, and the contactor (105) is fixedly arranged outside the fixing strip through a structure clamp; the bottom of the adjacent side of the traction block A (1) and the bottom of the adjacent side of the traction block B (2) are both integrally provided with an insertion block (201), one side of the insertion block (201) is provided with an insertion groove (202), and the traction block A (1) can be inserted into the insertion groove (202) through the insertion block (201) and is attached to the traction block B (2); the top of the traction block B (2) is provided with a groove, the top of the groove is fixedly provided with a top cover (205) through a bolt, and the middle of the top cover (205) is provided with a square hole; the self-locking block (204) is movably arranged in the groove through a top cover (205), a plurality of groups of springs are fixedly arranged at the bottom of the self-locking block (204) through welding, and a button type structure is integrally arranged in the middle of the top of the self-locking block (204) through a square hole.
2. The traction device with the buffering function for the railway locomotive according to claim 1, wherein a bottom cover (104) is fixedly arranged on the outer side of the switch groove (103) through bolts, and a U-shaped groove is formed in the middle of one side of the bottom cover (104); and two pole contacts of the contactor (105) are provided with electric wires which penetrate through the bottom cover (104) and are connected in series to penetrate through the air cylinder (101) to be connected with a locomotive power supply.
3. The traction device with a buffering function for a railway locomotive according to claim 1, wherein one end of the touch device A (501) is integrally provided with a thread structure; one end of the touch device B (502) is provided with a screw hole; switch groove (103) one side is run through traction block A (1) and is seted up cascaded through-hole, and touches device B (502) activity and sets up in switch groove (103) inboard through-hole, and touches device A (501) and passes spring B (5) and cascaded through-hole and touch device B (502) fixed connection through threaded connection, and touches device B (502) outside integral type and be provided with the lug structure.
4. The traction device with the buffering function for the railway locomotive according to claim 1, wherein two groups of damping grooves (301) are formed in the tops of the adjacent surfaces of the traction block C (3) and the traction block B (2), the dampers (306) are fixedly arranged in the damping grooves (301) on the two sides of the traction block C (3) through welding, and the outer ends of the dampers (306) are integrally provided with a raw plate structure.
5. The traction device with the buffering function for the railway locomotive according to claim 1, wherein a T-shaped block (302) is integrally arranged at the bottom of the traction block C (3), and a T-shaped groove (303) is formed at the position where the traction block B (2) is adjacent to the traction block C (3); t type groove (303) have been seted up to traction block C (3) bottom, and traction block B (2) and traction block C (3) department integral type that faces mutually is provided with T type piece (302), and traction block C (3) and traction block B (2) insert T type groove (303) laminating through T type piece (302).
6. The traction device with the buffering function for the railway locomotive is characterized in that a plate-shaped structure is arranged on two adjacent sides of the traction block C (3) and the traction block B (2) in a protruding mode, a through hole is formed in the middle of the plate-shaped structure, the traction block C (3) and the traction block B (2) sequentially penetrate through the through hole of the traction block C (3) through a bolt, the through hole of the traction block B (2) and a spring A (304) are inserted into a round nut (305) to be fixedly connected, and the round nut (305) is locked with the bolt through double threads by arranging the nut on the outer side.
7. The traction device with the buffering function for the railway locomotive according to claim 1, wherein a connecting block (4) is movably arranged on the outer sides of the traction block A (1) and the traction block C (3) through rotating shafts, a plurality of groups of through holes are formed in two sides of the connecting block (4), auxiliary shock absorbers (401) are fixedly arranged on two sides of the rotating shafts of the traction block A (1) and the traction block C (3) through welding, and the end portions of the auxiliary shock absorbers (401) are arranged to be arc-shaped structures.
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| CN201910591117.4A CN110239581B (en) | 2019-07-02 | 2019-07-02 | Traction device with buffering function for railway locomotive |
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| CN201910591117.4A CN110239581B (en) | 2019-07-02 | 2019-07-02 | Traction device with buffering function for railway locomotive |
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| CN110239581B true CN110239581B (en) | 2020-05-01 |
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| CN111038547A (en) * | 2019-12-31 | 2020-04-21 | 中铁磁浮科技（成都）有限公司 | Traction pull rod device with buffering function for medium-low speed magnetic levitation vehicle |
| CN111169503B (en) * | 2020-02-17 | 2021-06-25 | 温州派瑞机械科技有限公司 | Coal mine car with extensible connection structure |
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| CN105083318B (en) * | 2015-09-28 | 2016-09-14 | 青岛思锐科技有限公司 | Hitch spring vertical supporting device |
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| GB228983A (en) * | 1923-11-12 | 1925-02-12 | Buckeye Steel Castings Co | Improvements in and connected with draft rigging for railroad cars |
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| CN110239581A (en) | 2019-09-17 |
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