CN207737293U - A kind of traveling wheel assembly, linkage brake mechanism, normally closed braking rail row push trolley - Google Patents

A kind of traveling wheel assembly, linkage brake mechanism, normally closed braking rail row push trolley Download PDF

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Publication number
CN207737293U
CN207737293U CN201721752795.7U CN201721752795U CN207737293U CN 207737293 U CN207737293 U CN 207737293U CN 201721752795 U CN201721752795 U CN 201721752795U CN 207737293 U CN207737293 U CN 207737293U
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China
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brake
connecting rod
braking
hilt
vehicle frame
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CN201721752795.7U
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胡达
李育朝
马林
杨云堂
李昌宁
田晓波
王伟
蔡三友
杨帆
夏新发
李存福
赵紫京
任志鹏
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Xinyun Engineering Co Ltd of China Railway First Engineering Group Co Ltd
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Xinyun Engineering Co Ltd of China Railway First Engineering Group Co Ltd
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Abstract

The utility model is related to a kind of normally closed braking rail row push trolley, including vehicle frame, traveling wheel assembly, linkage brake mechanism, regulating mechanism, there are four independent traveling wheel assemblies for normally closed braking rail row push trolley, the brake of travelling wheel is set as normally closed pattern, the same side traveling wheel assembly and Frame Welding are integrated, both sides vehicle frame is integral by dismountable connecting rod group, and the synchronization action of braking mechanism can be achieved by the promotion and release of handspike.Self-actuating brake linkage mechanism shows through the nut between spin brake connecting rod and drum brake driving lever, and brake force can be adjusted, and since brake connecting rod both ends use different articulated manners, that is, realizes traveling and the braking function of bidirectional push rod.The normally closed braking rail row push trolley of the utility model is reasonable for structure, dismounting is convenient, safe and reliable, can be used as effective carrier that material is carried in railway track construction, highly practical, has wide application value in railway construction construction industry.

Description

A kind of traveling wheel assembly, linkage brake mechanism, normally closed braking rail row push trolley
Technical field
The utility model belongs to rail row push trolley field, and in particular to a kind of traveling wheel assembly, linkage brake mechanism, normally closed Braking rail row push trolley.
Background technology
With China railways and the fast development of city rail construction, need a large amount of rail row small flat in track construction site Vehicle carries material, current most of rail row push trolley in the prevalence of it is simple in structure, without braking mechanism, bearing capacity it is small, , often there are inconvenient for use, Lack of support, rail in the shortcomings of poor safety performance in use so as to cause rail row push trolley Phenomena such as road car slipping, there is prodigious hidden danger of quality and security risks.Therefore a kind of reasonable for structure, dismounting of design is needed just Prompt, safe and reliable practical rail row flatcar, effectively to solve current construction of railways scene track push trolley generally existing Safe mass problem.
Invention content
In order to solve the above-mentioned problems in the prior art, the utility model provides a kind of traveling wheel assembly, brake Linkage mechanism, normally closed braking rail row push trolley.The technical problems to be solved in the utility model is achieved through the following technical solutions:
A kind of traveling wheel assembly, including wheel shaft, the travelling wheel that is placed between interior cant board and outer cant board, the traveling wheel case It is located on the peripheral wall of wheel shaft, further includes the brake assembly braked to travelling wheel, which includes:It is placed in interior cant board Drum brakes circle between travelling wheel end face, the drum brakes snare are located on wheel shaft, and drum brakes circle is normally closed pattern.
A kind of above-mentioned traveling wheel assembly, one end of the drum brakes circle and drum brake driving lever, the drum brake driving lever it is another One end couples with by guide ring with brake connecting rod, which pulls along vehicle frame length direction, and drum brake driving lever is sent out counterclockwise The brake shoes of raw rotation, drum brakes circle resets, to realize brake unlock.
A kind of linkage brake mechanism, including drum brake driving lever, along vehicle frame length direction arrangement an at least brake connecting rod, set In the first bearing of vehicle frame left part, the first braking hilt and the first handrail, the second bearing for being placed in vehicle frame right part, the second system Moving knife handle and the second handrail;
The end of first bearing and the middle part of the first braking hilt are hinged, the upper end of the first braking hilt with First handrail is fixedly connected, and the lower end of the first braking hilt and one end of brake connecting rod are hinged;
The end of second bearing and the lower end of the second braking hilt are hinged, the upper end of the second braking hilt It is fixedly connected with the second handrail, the middle part of the second braking hilt and the other end of brake connecting rod are hinged;
One end of the drum brake driving lever is hinged with drum brakes circle, and the other end of drum brake driving lever is connected by guide ring and brake Bar couples, and the guiding ring set on guiding ring set and rear travelling wheel on the preceding travelling wheel of homonymy is each provided at same brake connecting rod On, and be fixedly connected with brake connecting rod.
A kind of above-mentioned linkage brake mechanism, the brake connecting rod are two, and two brake connecting rods are separately positioned on vehicle frame Both sides are, it can be achieved that be located at the normally closed braking of travelling wheel of vehicle frame both sides.
A kind of above-mentioned linkage brake mechanism, the vehicle frame are equipped with the baffle passed through for brake connecting rod, and the brake connects It is additionally provided with annular adjustment part on the peripheral wall of bar, is additionally provided between the baffle and annular adjustment part and provides reaction for brake connecting rod The elastic component of power, the elastic component are set on brake connecting rod, and one end of elastic component is fixedly connected with baffle, the other end and annular The end face of adjustment part connects.
A kind of normally closed braking rail row push trolley, including vehicle frame, the traveling wheel assembly that is installed in below vehicle frame, the travelling wheel are total The Cheng Yousi travelling wheel compositions coupled with wheel shaft,
Further include the drum brakes circle braked to travelling wheel, which is located on wheel shaft;
Further include linkage brake mechanism, which includes drum brake driving lever, arranged extremely along vehicle frame length direction A few brake connecting rod, the first braking hilt and the first handrail, is placed in vehicle frame right part at the first bearing for being placed in vehicle frame left part The second bearing, the second braking hilt and the second handrail;
The end of first bearing and the middle part of the first braking hilt are hinged, the upper end of the first braking hilt with First handrail is fixedly connected, and the lower end of the first braking hilt and one end of brake connecting rod are hinged;
The end of second bearing and the lower end of the second braking hilt are hinged, the upper end of the second braking hilt It is fixedly connected with the second handrail, the middle part of the second braking hilt and the other end of brake connecting rod are hinged;
One end of the drum brake driving lever is hinged with drum brakes circle, and the other end of drum brake driving lever is connected by guide ring and brake Bar couples, and the guiding ring set on guiding ring set and rear travelling wheel on the preceding travelling wheel of homonymy is each provided at same brake connecting rod On, and be fixedly connected with brake connecting rod.
A kind of above-mentioned normally closed braking rail row push trolley is equipped with linkage brake mechanism on the travelling wheel of vehicle frame both sides.
A kind of above-mentioned normally closed braking rail row push trolley, the vehicle frame is equipped with the baffle passed through for brake connecting rod, described It is additionally provided with annular adjustment part on the peripheral wall of brake connecting rod, is additionally provided between the baffle and annular adjustment part and is provided for brake connecting rod The elastic component of reaction force, the elastic component are set on brake connecting rod, and one end of elastic component is fixedly connected with baffle, the other end It is connect with the end face of annular adjustment part.
The beneficial effects of the utility model:
The utility model devises drum brakes structure in travelling wheel, and realizes synchronizing unlocking and system by brake connecting rod Dynamic function, the drum brakes circle of the utility model are set as normally closed, as long as no outer force effect, can realize self-actuating brake work( Can, it just can realize traveling when pushing connecting rod, therefore, the traveling wheel assembly and linkage brake mechanism structure of the utility model are reasonable, It dismounts convenient, safe and reliable.
The utility model is described in further details below with reference to accompanying drawings and embodiments.
Description of the drawings
Fig. 1 is push trolley vertical view.
Fig. 2 is push trolley left view.
Fig. 3 is the structural schematic diagram of traveling wheel assembly.
In figure:1, vehicle frame;2, traveling wheel assembly;3, vehicle frame connecting rod;4, the first bolt;5, pivoting support;6, drawhead; 7, brake connecting rod;8, handspike;9, adjusting nut;10, guide ring;11, connector sleeve;12, spring stop;13, spring;14, it adjusts Save nut;15, drum brake driving lever;16, drawhead;17, bolt;18, bolt;19, pivoting support;20, bolt;21, outer cant board; 22, outer separator;23, hanging ring;24, travelling wheel;25, interior cant board;26, drum brakes circle;27, fixing bolt;28, spring washer;29、 Wheel shaft;210, bearing;211, inner spacing collar.
Specific implementation mode
Reach the technological means and effect that predetermined purpose is taken for the utility model is expanded on further, below in conjunction with attached drawing And embodiment, to specific embodiment of the present utility model, structure feature and its effect, detailed description are as follows.
Country's construction site rail row push trolley at present, majority are voluntarily fabricated by each construction project department, in order to Meets the needs of onsite moving material, but most push trolley do not have automatic brake mechanism.The core technology of the present embodiment exists In designing a kind of self-actuating brake linkage mechanism reasonable for structure, dismounting is convenient, safe and reliable, existed with solving construction site push trolley During use the problems such as the dismounting inconvenience of generally existing, Lack of support, track car slipping, the novel normally closed braking rail row is small flat Vehicle is highly practical, has wide application value in railway construction construction industry.
As depicted in figs. 1 and 2, the normally closed braking rail row push trolley of the present embodiment includes that vehicle frame 1 and traveling wheel assembly 2 weld It is integrated, both sides vehicle frame is integral by 3 groups of quick release connecting rod;It is integrated with drum brakes in traveling wheel assembly 2, is arranged For normally closed pattern;Linkage brake mechanism is made of brake connecting rod 7, spring 13, drum brake driving lever 15;The pull rod of 7 one end of brake connecting rod First 16 and second bolt 17, third bolt 18, pivoting support 19 form a kind of articulated manner, the drawhead 6 and first of the other end Bolt 4, pivoting support 5 form a kind of articulated manner;Drawhead 6, drawhead 16 and handspike 8 connect, and realize that bidirectional push rod is walked Row and braking function.
Drum brake built in traveling wheel assembly 2 is set as normally closed pattern, and 13 one end of spring is stopped by spring stop 12, passes through tune Whole nut 14, to 13 precommpression of spring, while spring 13 provides opposition to brake connecting rod 7, and connecting rod 7 makes drum brake driving lever 15 Rotation makes the brake of the same side travelling wheel keep normally closed pattern, realizes that brake is locked.
Bidirectional push rod traveling function is when pushing handspike 8, and drawhead 6 is consistent with 16 direction of motion of drawhead, simultaneously Overcome 13 elastic force of spring to do work, so that drum brake driving lever 15 is rotated, brake shoes is made to reset, realizes brake unlock.When release handspike 8 When, drawhead 6 is with 16 direction of motion of drawhead on the contrary, 13 elastic force of spring release simultaneously, makes drum brake driving lever 15 withdraw, make brake shoe Piece is heaved, and realizes that brake is stopped.
Two-way linkage push rod traveling principle is:When pushing handspike 8, drawhead 6 is consistent with 16 direction of motion of drawhead, Overcome 13 elastic force of spring to do work simultaneously, so that drum brake driving lever 15 is rotated, brake shoes is made to reset, realizes brake unlock.
Two-way linkage pushrods parking principle is:When unclamping handspike 8, drawhead 6 and 16 direction of motion of drawhead on the contrary, 13 elastic force of spring release simultaneously makes drum brake driving lever 15 withdraw, brake shoes is made to heave, and realizes that brake is stopped.
Linkage brake mechanism has the function of brake-force control, when brake force needs to adjust, by adjusting nut 14, to bullet Spring 13 applies the pressure of bigger, so that brake connecting rod 7 is driven the 15 rotational angle variation of drum brake driving lever, while making brake shoes open-angle Degree changes, and realizes brake-force control function;When brake shoes abrasion leads to brake force deficiency, by adjusting nut 9, make 10 displacement of guide ring increases, while brake shoes opening angle being made to change, and realizes the adjusting of brake force, brake connecting rod is by outer diameter The lead screw of M16 is constituted, and is connected by connector sleeve 11.
The linkage brake mechanism of 8 both sides of bidirectional push rod is connected by handspike 8, realize both sides brake assembly synchronize it is locked or Unlock, drum brakes wheel set are as shown in Figure 3.
The present embodiment devises drum brakes structure in travelling wheel, and realizes synchronizing unlocking and braking by threaded rod Function.Brake shoes keeps normally closed pattern, the brake assembly of the same side to realize synchronization action, linkage brake machine by linkage mechanism Structure both ends form various forms of articulated manners with vehicle frame respectively, realize bidirectional push rod traveling function, when unclamping handspike, just It can realize timely braking function.
The vehicle frame and traveling wheel assembly of the present embodiment are welded as a whole, and both sides vehicle frame is by being detachably connected bar composition one Body is, it can be achieved that convenient dismounting.
The traveling wheel assembly of the present embodiment, built-in drum brake are set as normally closed pattern, and spring one end is stopped by spring stop, Precommpression is carried out to spring by adjusting nut, so that connecting rod is driven the rotation of drum brake driving lever, the brake of the same side travelling wheel is made to keep Normally closed pattern realizes that linkage brake is locked.
The linkage brake mechanism of the present embodiment has the function of brake-force control.When brake force needs to adjust, pass through adjusting Nut applies spring the pressure of bigger, and brake connecting rod is made to act, and drives the rotation of drum brake driving lever, brake shoes opening angle is made to send out Changing realizes brake-force control function;When brake shoes abrasion leads to brake force deficiency, guide ring is made by adjusting nut Displacement increases, while brake shoes opening angle being made to change, and realizes the adjusting of brake force.
Brake connecting rod is made of lead screw, and is connected by connector sleeve.Bidirectional push rod traveling function, both sides brake connection Motivation structure is connected by handspike, realizes both sides brake assembly synchronous braking or unlock.
The present embodiment has the following advantages compared with prior art:
1, the present embodiment is reasonable for structure, and dismounting is convenient, safe and reliable;2, the present embodiment braking mechanism is sensitive reliable, system Power can be adjusted according to the gradient and bearing capacity needs;3, the present embodiment devises self-actuating brake linkage mechanism, drum brakes It is set as normally closed, therefore as long as no outer force effect, can realize automatic brake functions, traveling just can be realized when pushing connecting rod; 4, the cost of implementation of the present embodiment is low, and braking effect is reliable, convenient for promoting the use of.
It is reasonable for structure, dismounting is convenient, safe and reliable in conclusion a kind of normally closed braking rail row push trolley of the present embodiment, The brake force of automatic brake mechanism can need to be adjusted according to construction, highly practical, convenient for promoting the use of.
There are four independent traveling wheel assembly, the brakes of travelling wheel to be set as the normally closed braking rail row push trolley of the present embodiment Normally closed pattern, the same side traveling wheel assembly and Frame Welding are integrated, by self-actuating brake linkage mechanism realize synchronization action, two Side vehicle frame is integral by dismountable connecting rod group, and the synchronous dynamic of braking mechanism can be achieved with release by the promotion of handspike Make.Self-actuating brake linkage mechanism shows through the nut between spin brake connecting rod and drum brake driving lever, can be adjusted to brake force Section, since brake connecting rod both ends use different articulated manners, that is, realizes traveling and the braking function of bidirectional push rod.This reality Apply the normally closed braking rail row push trolley of example it is reasonable for structure, dismounting it is convenient, safe and reliable, can be used as and carry material in railway track construction Effective carrier, it is highly practical, in railway construction construction industry have wide application value.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard To belong to the scope of protection of the utility model.

Claims (8)

1. a kind of traveling wheel assembly, including wheel shaft(29), be placed in interior cant board(25)With outer cant board(21)Between travelling wheel (24), the travelling wheel(24)It is set in wheel shaft(29)Peripheral wall on, which is characterized in that further include to travelling wheel(24)It brakes Brake assembly, which includes:It is placed in interior cant board(25)With travelling wheel(24)Drum brakes circle between end face (26), the drum brakes circle(26)It is set in wheel shaft(29)On, and drum brakes circle(26)For normally closed pattern.
2. traveling wheel assembly as described in claim 1, which is characterized in that the drum brakes circle(26)With drum brake driving lever(15) One end, the drum brake driving lever(15)The other end and pass through guide ring(10)With brake connecting rod(7)Connection, the brake connecting rod (7)Along vehicle frame(1)Length direction pulls, drum brake driving lever(15)It rotates counterclockwise, drum brakes circle(26)Brake shoes It resets, to realize brake unlock.
3. a kind of linkage brake mechanism, which is characterized in that including drum brake driving lever(15), along vehicle frame(1)Length direction is arranged extremely A few brake connecting rod(7), be placed in vehicle frame(1)First bearing of left part, is placed in vehicle frame at the first braking hilt and the first handrail (1)Second bearing of right part, the second braking hilt and the second handrail;
The end of first bearing and the middle part of the first braking hilt are hinged, the upper end and first of the first braking hilt Handrail is fixedly connected, the lower end of the first braking hilt and brake connecting rod(7)One end it is hinged;
The end of second bearing and the lower end of the second braking hilt are hinged, the upper end of the second braking hilt and the Two handrails are fixedly connected, the middle part of the second braking hilt and brake connecting rod(7)The other end it is hinged;
The drum brake driving lever(15)One end and drum brakes circle(26)It is hinged, drum brake driving lever(15)The other end pass through guide ring (10)With brake connecting rod(7)Connection, the guiding ring set being oriented on ring set and rear travelling wheel being located on the preceding travelling wheel of homonymy are equal It is located at same brake connecting rod(7)On, and and brake connecting rod(7)It is fixedly connected.
4. linkage brake mechanism as claimed in claim 3, which is characterized in that the brake connecting rod(7)It is two, two brakes Connecting rod(7)It is separately positioned on vehicle frame(1)Both sides are, it can be achieved that be located at vehicle frame(1)The travelling wheel of both sides(24)Normally closed braking.
5. linkage brake mechanism as described in claim 3 or 4, which is characterized in that the vehicle frame(1)It is equipped with for brake connecting rod (7)The baffle passed through, the brake connecting rod(7)Peripheral wall on be additionally provided with annular adjustment part, the baffle and annular adjustment part it Between be additionally provided with as brake connecting rod(7)The elastic component of reaction force is provided, which is set in brake connecting rod(7)On, and elasticity One end of part is fixedly connected with baffle, and the other end is connect with the end face of annular adjustment part.
6. a kind of normally closed braking rail row push trolley, including vehicle frame(1), be installed in vehicle frame(1)The traveling wheel assembly of lower section(2), should Traveling wheel assembly(2)By four and wheel shaft(29)The travelling wheel of connection(24)Composition, it is characterised in that:
Further include to travelling wheel(24)The drum brakes circle of braking(26), the drum brakes circle(26)It is set in wheel shaft(29)On;
Further include linkage brake mechanism, which includes drum brake driving lever(15), along vehicle frame(1)Length direction arrangement An at least brake connecting rod(7), be placed in vehicle frame(1)First bearing of left part, is placed in vehicle at the first braking hilt and the first handrail Frame(1)Second bearing of right part, the second braking hilt and the second handrail;
The end of first bearing and the middle part of the first braking hilt are hinged, the upper end and first of the first braking hilt Handrail is fixedly connected, the lower end of the first braking hilt and brake connecting rod(7)One end it is hinged;
The end of second bearing and the lower end of the second braking hilt are hinged, the upper end of the second braking hilt and the Two handrails are fixedly connected, the middle part of the second braking hilt and brake connecting rod(7)The other end it is hinged;
The drum brake driving lever(15)One end and drum brakes circle(26)It is hinged, drum brake driving lever(15)The other end pass through guide ring (10)With brake connecting rod(7)Connection, the guiding ring set being oriented on ring set and rear travelling wheel being located on the preceding travelling wheel of homonymy are equal It is located at same brake connecting rod(7)On, and and brake connecting rod(7)It is fixedly connected.
7. normally closed braking rail row push trolley as claimed in claim 6, which is characterized in that vehicle frame(1)On the travelling wheel of both sides Equipped with linkage brake mechanism.
8. normally closed braking rail row push trolley as claimed in claims 6 or 7, which is characterized in that the vehicle frame(1)It is equipped with for stopping Vehicle connecting rod(7)The baffle passed through, the brake connecting rod(7)Peripheral wall on be additionally provided with annular adjustment part, the baffle and annular are adjusted It is additionally provided between one integral piece as brake connecting rod(7)The elastic component of reaction force is provided, which is set in brake connecting rod(7)On, And one end of elastic component is fixedly connected with baffle, the other end is connect with the end face of annular adjustment part.
CN201721752795.7U 2017-12-15 2017-12-15 A kind of traveling wheel assembly, linkage brake mechanism, normally closed braking rail row push trolley Active CN207737293U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721752795.7U CN207737293U (en) 2017-12-15 2017-12-15 A kind of traveling wheel assembly, linkage brake mechanism, normally closed braking rail row push trolley

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721752795.7U CN207737293U (en) 2017-12-15 2017-12-15 A kind of traveling wheel assembly, linkage brake mechanism, normally closed braking rail row push trolley

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CN207737293U true CN207737293U (en) 2018-08-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113044069A (en) * 2021-03-19 2021-06-29 中铁一局集团有限公司 Intelligent braking track small flat car and travelling method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113044069A (en) * 2021-03-19 2021-06-29 中铁一局集团有限公司 Intelligent braking track small flat car and travelling method thereof

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