CN207241329U - Damping draw hook - Google Patents

Damping draw hook Download PDF

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Publication number
CN207241329U
CN207241329U CN201720868368.9U CN201720868368U CN207241329U CN 207241329 U CN207241329 U CN 207241329U CN 201720868368 U CN201720868368 U CN 201720868368U CN 207241329 U CN207241329 U CN 207241329U
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CN
China
Prior art keywords
sleeve pipe
described sleeve
pull rod
draw hook
partition plate
Prior art date
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Active
Application number
CN201720868368.9U
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Chinese (zh)
Inventor
陈志军
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SAIC Volkswagen Automotive Co Ltd
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SAIC Volkswagen Automotive Co Ltd
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Application filed by SAIC Volkswagen Automotive Co Ltd filed Critical SAIC Volkswagen Automotive Co Ltd
Priority to CN201720868368.9U priority Critical patent/CN207241329U/en
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Abstract

The utility model provides a kind of damping draw hook, including a pull rod, sleeve, a partition plate and an installation hold-down support;The first end of the pull rod forms a traction coupler body, and the second end of the pull rod in the middle part of the partition plate with being welded and fixed;The second end of the partition plate and the pull rod can be inserted in described sleeve pipe along described sleeve pipe axially reciprocating, the first end of the pull rod is stretched out from the first end of described sleeve pipe, and pressure is equipped with a resetting spring respectively between the two sides and described sleeve pipe both ends of the partition plate;The second end of described sleeve pipe and the installation hold-down support pivot joint.A kind of damping draw hook of the utility model, can effectively buffer the brute force attack during start and stop of tractor, have the advantages that simple in structure, selection is convenient, easy to maintain, cost are low and good buffer effect.

Description

Damping draw hook
Technical field
It the utility model is related to logistics distribution device field, more particularly to a kind of damping draw hook.
Background technology
During modern logistics development, in order to improve the raising of part dispatching efficiency, and the consideration of safety in production, avoid Forklift is tried one's best and is not dispensed into the principle of workshop shuttle, the part transport of either inside usually using tractor.Existing traction connection Technology in, the general hardwired mode using curve and straight line.Tractor pulls delivery process, traction joint number, traction weight In the case that amount, road environment change, trolley turn etc. are different, tractor can constantly rise/stop.Tractor can play/the stopping time, Produce considerable amount of impact kinetic energy.So the shipping mass of part is had an impact at the same time, also in " tail and headstock " is destroyed Weak link --- draw hook the most, causes constantly to damage in draw hook use, and maintenance cost is higher, and influences to dispense work Efficiency and quality.
The content of the invention
For above-mentioned deficiency of the prior art, the utility model provides a kind of damping draw hook, can effectively buffer and lead Draw the brute force attack during start and stop of car, have that simple in structure, selection is convenient, easy to maintain, cost are low and good buffer effect it is excellent Point.
To achieve these goals, the utility model provides a kind of damping draw hook, including a pull rod, sleeve, one every Plate and an installation hold-down support;The first end of the pull rod forms a traction coupler body, the second end of the pull rod and the partition plate Middle part be welded and fixed;The second end of the partition plate and the pull rod can be inserted in described along described sleeve pipe axially reciprocating In casing, the first end of the pull rod is stretched out from the first end of described sleeve pipe, the two sides and described sleeve pipe both ends of the partition plate it Between respectively pressure be equipped with a resetting spring;The second end of described sleeve pipe and the installation hold-down support pivot joint.
Preferably, the pull rod is axially formed a circumferential limiting slot, and described sleeve pipe is connected with and the circumferential limiting slot The circumferential locating part coordinated, the circumferential direction locating part part are inserted in the circumferential limiting slot.
Preferably, the installation hold-down support includes a backboard, biside plate, a bottom plate and a supporting item;Two side plates Be parallel to each other and be vertically spaced the middle part for being fixed on the backboard;The floor level is fixed on the bottom of two side plates Portion;Between the second end of described sleeve pipe is articulated in two side plates by an axis pin, the supporting item is fixed on the bottom plate And it is located at side of the axis pin away from the backboard.
Preferably, the supporting item includes a threaded block and an adjusting bolt;Vertically shape at the top of the threaded block Into a threaded hole and it is fixed on the bottom plate;The adjusting bolt is bolted in the threaded hole.
Preferably, two side plates vertically form the slotted hole corresponded respectively, and the second of described sleeve pipe End is articulated in the slotted hole by the axis pin.
Preferably, a pad is further included, the pad is formed at the second end of described sleeve pipe;When described sleeve pipe is in level During state, described sleeve pipe is set up on the supporting item by the pad.
Preferably, described sleeve pipe includes ferrule body and an end cap, and described sleeve pipe body forms a telescopic cavity, described to stretch Contracting chamber forms an opening in one end of the first end of neighbouring described sleeve pipe body, is formed in the middle part of the end cap and coordinated with the pull rod Through hole and lid set and be fixed on the opening;The second end of described sleeve pipe body and the installation hold-down support pivot joint;It is described every The second end of plate and the pull rod is inserted in the telescopic cavity;The one resetting spring pressure is arranged on the partition plate and stretches with described Chamber is between the inner wall of the second end of described sleeve pipe body;Another resetting spring is sheathed on outside the pull rod and presses and is arranged on Between the partition plate and the end cap.
Preferably, the flexible cavity wall is covered with grease layer.
Preferably, it is described to draw coupler body in a ring.
Preferably, the backboard both sides form a plurality of connecting holes.
The utility model makes it have following beneficial effect as a result of above technical scheme:
The cooperation of pull rod, partition plate and resetting spring so that when pull rod is horizontal positioned, can effectively buffer the start and stop of tractor When the brute force attack that is produced due to inertia, extend the service life of damping draw hook.The second end of casing and the fixed branch of installation Seat pivot joint so that damping draw hook can reach reduction and lead in off working state by sleeve rotating to vertically placing While drawing car floor space, safety coefficient can be also improved, to prevent colliding with for damping draw hook and human body or other objects.It is circumferential The use of limiting slot and circumferential locating part, can effectively prevent pull rod from circumferential rotation occurring during the work time, so as to ensure The stabilization of damping draw hook work, prevents the generation of circumferential stress.Casing when supporting item is used for in horizontality carries For support, horizontality is maintained at stabilizing it.The cooperation of threaded block and adjusting bolt, realization can be by adjusting bolt The fine setting realized to casing levelness is adjusted, ensures the levelness of casing and pull rod in working status.The use of grease layer, So that the resetting spring service free in telescopic cavity, and the service life of resetting spring is significantly extended, simplify damping and lead Draw the maintenance work of hook.
Brief description of the drawings
Fig. 1 is the structure diagram of the first working status of the damping draw hook of the utility model embodiment;
Fig. 2 is the structure diagram of the second working status of the damping draw hook of the utility model embodiment.
Embodiment
Below according to attached drawing 1 and Fig. 2, the preferred embodiment of the utility model is provided, and is described in detail, is enabled more preferable Ground understands the function of the utility model, feature.
Please refer to Fig.1 and Fig. 2, a kind of damping draw hook that the utility model is implemented, including a pull rod 1, sleeve 2, one Partition plate 3 and one installs hold-down support 4;The first end of pull rod 1 forms a traction coupler body 11, the second end of pull rod 1 with partition plate 3 Portion is welded and fixed, and in the present embodiment, partition plate 3 is welded in the periphery of 1 second end of pull rod, in other embodiments, also can be by partition plate 3 It is welded in the end of 1 second end of pull rod;The second end of partition plate 3 and pull rod 1 can be inserted in casing along 2 axially reciprocating of casing In 2, the first end of pull rod 1 is stretched out from the first end of casing 2, and pressure is equipped with one respectively between the two sides of partition plate 3 and the both ends of casing 2 Resetting spring 5;The second end of casing 2 is pivotally connected with installation hold-down support 4.In the present embodiment, traction coupler body 11 is in a ring.
In the present embodiment, casing 2 is prepared using seamless steel pipe.Two groups of resetting springs 5 realize tension and resistance to compression respectively Function.The cooperation of pull rod 1, partition plate 3 and resetting spring 5 so that when pull rod 1 is horizontal positioned, can effectively buffer tractor Due to the brute force attack that inertia produces during start and stop, the service life of damping draw hook is extended.The second end of casing 2 is solid with installation Determine bearing 4 to be pivotally connected so that casing 2 can be rotated to vertically placing, reached in off working state by damping draw hook While reducing tractor floor space, safety coefficient can be also improved, to prevent knocking for damping draw hook and human body or other objects Touch, and with the angle regulating function from 0~90 degree of level.
Pull rod 1 is axially formed circumferential limiting slot (not shown), and casing 2 is connected with one week coordinated with circumferential limiting slot To locating part, circumferential locating part part is inserted in circumferential limiting slot, and can circumferentially limiting slot be moved back and forth.
The use of circumferential limiting slot and circumferential locating part, can effectively prevent pull rod 1 from circumferential direction occurring during the work time Rotate, so as to ensure that the stabilization of damping draw hook work, prevent the generation of circumferential stress.
Casing 2 includes 201 and one end cap 202 of ferrule body, and sleeve body 201 forms a telescopic cavity, and telescopic cavity is in neighbour One end of the first end of nearly sleeve body 201 forms an opening, and the middle part of end cap 202 forms the through hole coordinated with pull rod 1 and lid is set It is fixed on opening;The second end of sleeve body 201 is pivotally connected with installation hold-down support 4;The second end of partition plate 3 and pull rod 1 is inserted in In telescopic cavity;One resetting spring 5 pressure is arranged on partition plate 3 and telescopic cavity between the inner wall of the second end of sleeve body 201;It is another Resetting spring 5 is sheathed on outside pull rod 1 and presses and is arranged between partition plate 3 and end cap 202.Flexible cavity wall is covered with grease layer (not shown).
The use of grease layer so that 5 service free of resetting spring in telescopic cavity, and significantly extend resetting spring 5 service life, simplifies the maintenance work of damping draw hook.
In the present embodiment, installation hold-down support 4 includes a backboard 41, biside plate 42, a bottom plate 43 and a supporting item 44;Two Side plate 42 is parallel to each other and is vertically spaced the middle part for being fixed on backboard 41;43 level of bottom plate is fixed on the bottom of biside plate 42 Portion;Between the second end of casing 2 is articulated in biside plate 42 by an axis pin 22, supporting item 44 is fixed on bottom plate 43 and is located at pin Side of the axis 22 away from backboard 41.41 both sides of backboard form a plurality of connecting holes 411, and a company is inserted with each connecting hole 411 Connecting bolt 412.In the present embodiment, backboard 41, side plate 42 and bottom plate 43 use steel plate.
Supporting item 44 includes a threaded block 441 and an adjusting bolt 442;The top of threaded block 441 vertically forms one Threaded hole is simultaneously fixed on bottom plate 43;Adjusting bolt 442 is bolted in threaded hole.
Casing 2 when supporting item 44 is used for in horizontality provides support, is maintained at horizontality with stabilizing it. The cooperation of threaded block 441 and adjusting bolt 442, realizing can be realized to 2 levelness of casing by the adjusting to adjusting bolt 442 Fine setting, ensures the levelness of casing 2 and pull rod 1 in working status.
Biside plate 42 vertically forms the slotted hole 421 corresponded respectively, and the second end of casing 2 passes through axis pin 22 are articulated in slotted hole 421.
A pad 23 is further included, pad 23 is formed at the second end of casing 2;When casing 2 is in horizontality, casing 2 It is set up in by pad 23 on supporting item 44.Casing 2 and the contact site of supporting item 44 are strengthened in the use of pad 23, subtract Supporting item 44 is delayed and issuable damage is hit to casing 2, when casing 2 is in vertical state, casing 2 is set up by pad 23 In on supporting item 44, casing 2 is carried out spacing so that casing 2 will not be rotated further with the sun.
The utility model utilizes the damping principle of spring, and by the adjustment of installation site, tractor and trailer difference is led Draw height and do a change, reach the unification of traction hight.It is with structural principle is simple, highly practical, selection is convenient, switching The advantages that convenient and efficient.The utility model also has the characteristics that at the same time:
(1), it is simple in structure:Its parts quantity is few, and requirement on machining accuracy is not high, easy to use.
(2), selection is convenient:Using the common material that in the market is common, system is disclosure satisfy that woth no need to the material of special type Make demand.
(3), it is easy to maintenance:Resetting spring 5 is enclosed in the confined space of grease layer, and service free (makes through experiment With 4 years, do not occur maintenance requirements).It is simple if any maintaining structure, without maintenance skills.
(4), good buffer effect:The start and stop brute force attack of tractor, the spring 5 that can be reset substantially absorb.Impact sound base This elimination, and transport part and will not produce friction displacement.
(5), make simple of low cost:Steel-pipe welding, woth no need to precision making and special material, can be significantly reduced system Make cost:
The utility model is described in detail above in association with attached drawing embodiment, those skilled in the art can root Many variations example is made to the utility model according to described above.Thus, some details in embodiment should not be formed to this practicality New restriction, the utility model will be used as the scope of protection of the utility model using the scope that the appended claims define.

Claims (10)

1. a kind of damping draw hook, it is characterised in that including a pull rod, sleeve, a partition plate and an installation hold-down support;It is described The first end of pull rod forms a traction coupler body, and the second end of the pull rod in the middle part of the partition plate with being welded and fixed;The partition plate It can be inserted in the second end of the pull rod along described sleeve pipe axially reciprocating in described sleeve pipe, the first end of the pull rod Stretched out from the first end of described sleeve pipe, pressure is equipped with a resetting spring respectively between the two sides and described sleeve pipe both ends of the partition plate; The second end of described sleeve pipe and the installation hold-down support pivot joint.
2. damping draw hook according to claim 1, it is characterised in that it is circumferential spacing that the pull rod is axially formed one Groove, described sleeve pipe are connected with the circumferential locating part coordinated with the circumferential limiting slot, and the circumferential direction locating part part is inserted in In the circumferential direction limiting slot.
3. damping draw hook according to claim 1, it is characterised in that the installation hold-down support includes a backboard, two Side plate, a bottom plate and a supporting item;Two side plates are parallel to each other and are vertically spaced the middle part for being fixed on the backboard; The floor level is fixed on the bottom of two side plates;The second end of described sleeve pipe is articulated in two side plates by an axis pin Between, the supporting item is fixed on the bottom plate and is located at side of the axis pin away from the backboard.
4. damping draw hook according to claim 3, it is characterised in that the supporting item includes a threaded block and one and adjusts Bolt;Vertically form a threaded hole at the top of the threaded block and be fixed on the bottom plate;The adjusting bolt is spirally connected In in the threaded hole.
5. damping draw hook according to claim 3, it is characterised in that two side plates vertically form phase respectively A mutual corresponding slotted hole, the second end of described sleeve pipe are articulated in the slotted hole by the axis pin.
6. damping draw hook according to claim 5, it is characterised in that further include a pad, the pad is formed at institute State the second end of casing;When described sleeve pipe is in horizontality, described sleeve pipe is set up in the supporting item by the pad On.
7. according to claim 3~6 any one of them damping draw hook, it is characterised in that described sleeve pipe includes sleeve sheet Body and an end cap, described sleeve pipe body form a telescopic cavity, the telescopic cavity neighbouring described sleeve pipe body first end one End forms an opening, forms the through hole coordinated with the pull rod in the middle part of the end cap and lid sets and is fixed on the opening;The set The second end of tube body and the installation hold-down support pivot joint;The second end of the partition plate and the pull rod is inserted in described flexible Intracavitary;One resetting spring pressure be arranged on the partition plate and second end of the telescopic cavity adjacent to described sleeve pipe body inner wall it Between;Another resetting spring is sheathed on outside the pull rod and presses and is arranged between the partition plate and the end cap.
8. damping draw hook according to claim 7, it is characterised in that the flexible cavity wall is covered with grease Layer.
9. damping draw hook according to claim 8, it is characterised in that the traction coupler body is in a ring.
10. damping draw hook according to claim 8, it is characterised in that the backboard both sides form a plurality of connecting holes.
CN201720868368.9U 2017-07-18 2017-07-18 Damping draw hook Active CN207241329U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720868368.9U CN207241329U (en) 2017-07-18 2017-07-18 Damping draw hook

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720868368.9U CN207241329U (en) 2017-07-18 2017-07-18 Damping draw hook

Publications (1)

Publication Number Publication Date
CN207241329U true CN207241329U (en) 2018-04-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720868368.9U Active CN207241329U (en) 2017-07-18 2017-07-18 Damping draw hook

Country Status (1)

Country Link
CN (1) CN207241329U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109733132A (en) * 2019-01-25 2019-05-10 江苏大学 A kind of adjustable caravan trailer ball head connecting device of rigidity dynamic

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109733132A (en) * 2019-01-25 2019-05-10 江苏大学 A kind of adjustable caravan trailer ball head connecting device of rigidity dynamic

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