CN210234975U

CN210234975U - Bidirectional damping mine car

Info

Publication number: CN210234975U
Application number: CN201920703391.1U
Authority: CN
Inventors: Xun Zhu; 朱迅; Chuanjiang Zhou; 周传江; Chengyu Zeng; 曾承禹
Original assignee: Sichuan Xunhai Explosion Proof Diesel Locomotive Manufacturing Co ltd
Current assignee: Sichuan Xunhai Explosion Proof Diesel Locomotive Manufacturing Co ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-04-03
Anticipated expiration: 2029-05-16

Abstract

The utility model provides a bidirectional damping mine car, which comprises a carriage, an axle and wheels, wherein the bottom of the carriage is vertically welded with a connecting shaft, the connecting shaft penetrates through the axle and is connected with the axle in a sliding way, a first damper is sleeved outside the connecting shaft, and the first damper is contacted with the axle; and a second shock absorber and wheels are sequentially arranged at two ends of the axle respectively, and the wheels are rotatably connected with the axle through embedded bearings. Compared with the prior art, the utility model discloses following beneficial effect has: the shock attenuation about can going on the carriage through first bumper shock absorber, and when rocking about the carriage, the second bumper shock absorber that sets up can carry out cushioning effect to rocking of carriage, reduces rocking about the carriage for the mine car is difficult for derailing, thereby has guaranteed that the goods in the carriage does not drop.

Description

Bidirectional damping mine car

Technical Field

The utility model relates to a mining mine car technical field, concretely relates to can two-way absorbing mine car.

Background

The mine car is a main transportation device for transporting coal and gangue in a coal mine underground roadway, is a short-distance transportation device for materials such as sandy soil, pebbles and the like required in building transportation engineering such as bridge construction, railway engineering, transportation, guidance and tunneling and the like, and generally needs to run along a track laid on the ground under the traction of a locomotive or a winch. When a common mine car transports overweight cargoes, a plate spring suspension is generally used for damping the mine car, the damping mode only can play a role in up-and-down damping, and the mine car cannot be effectively buffered when swaying left and right, so that the mine car is easy to derail particularly when passing a bend, and the cargoes fall to cause safety accidents; in addition, the plate spring suspension is complex in structure, the weight of the box body of the mine car is increased, and the running resistance of the mine car is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can two-way absorbing mine car, when the mine car transports overweight goods, the shock attenuation about not only can also controlling, can carry out cushioning effect to the mine car, reduces rocking about the mine car, guarantees that the mine car is difficult for derailing.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a two-way shock attenuation mine car, including carriage, axletree and wheel, the vertical welding of carriage bottom has the connecting axle, the connecting axle runs through the axletree and with the axletree sliding connection, the connecting axle overcoat is equipped with first bumper shock absorber, first bumper shock absorber contacts with the axletree; and a second shock absorber and wheels are sequentially installed at two ends of the axle respectively, and the wheels are rotatably connected with the axle through embedded bearings.

Furthermore, the first shock absorbers are sleeved on the connecting shafts on the upper side and the lower side of the axle, and the first shock absorbers on the lower side of the axle are locked and fixed through stop washers and round nuts arranged at the lower end of the connecting shafts.

Further, a section of the axle between the second shock absorbers is provided as a square shaft.

Furthermore, the first shock absorber and the second shock absorber are formed by combining single disc springs in an overlapping, involuting or compounding mode.

Further, the combination mode of the disc springs is an overlapping combination mode.

Further, the wheel is the anticreep rail wheel, is formed by left half wheel and the gomphosis of right half wheel, just left side half wheel all is equipped with the rim with right half wheel.

Further, half wheel is embedded to have first bearing on a left side, half wheel is embedded to have the second bearing on the right side, the wheel pass through first bearing, second bearing with the axletree rotates to be connected.

Further, the first bearing and the second bearing are both tapered roller bearings.

Furthermore, a gap exists between the inner side end of the left half wheel and the step of the axle, and a return spring is installed in the gap.

Compared with the prior art, the utility model provides a two-way shock attenuation mine car has following beneficial effect:

1. the shock attenuation about can going on the carriage through first bumper shock absorber, and when rocking about the carriage, the second bumper shock absorber that sets up can carry out cushioning effect to rocking of carriage, reduces rocking about the carriage for the mine car is difficult for derailing, thereby has guaranteed that the goods in the carriage does not drop.

2. First bumper shock absorber forms through the coincide mode combination with the second bumper shock absorber by belleville spring, can realize the effect of the high compensation power of low stroke, and the face of laminating has frictional damping simultaneously, inhales and shakes and the power consumption effect is more showing.

3. The wheels adopt a split structure with a left half wheel and a right half wheel and are provided with rims, so that the wheels can be clamped on the track to move, the derailment of the mine car is prevented in two directions, and the underground safe transportation and production are facilitated; meanwhile, even if the rim of the left half wheel is damaged, the mine car can continue to run forwards; in addition, the left half wheel can be replaced on the rail when the mine car is temporarily parked, so that the time is saved, and the maintenance of the wheels of the mine car is more convenient.

4. The return spring arranged in the gap between the inner side end of the left half wheel and the step of the axle can enable the wheel to generate certain axial sliding along the axle when the track is narrowed, and self-adjustment and self-return of the wheel distance are realized in a self-adaptive mode.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional structural view of a wheel in engagement with an axle;

fig. 4 is a left side view of fig. 3.

The reference numerals are explained below:

1: the carriage 2: the axle 3: wheel of vehicle

31: left half wheel 32: right half wheel 33: wheel rim

34: first bearing 35: second bearing 36: reset spring

4: connecting shaft 5: first shock absorber 6: second shock absorber

7: stop washer 8: round nut 9: track

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

As shown in fig. 1 to 4, the utility model provides a bidirectional damping mine car, which comprises a carriage 1, an axle 2 and wheels 3, wherein a connecting shaft 4 is vertically welded at the bottom of the carriage 1, the connecting shaft 4 penetrates through the axle 2 and is connected with the axle 2 in a sliding manner, a first damper 5 is sleeved outside the connecting shaft 4, and the first damper 5 is in contact with the axle 2; second bumper shock absorber 6, wheel 3 are installed respectively in proper order to 2 both ends of axletree, and wheel 3 rotates through embedded bearing and axletree 2 to be connected. The wheel 3 that is located 2 both ends of axletree forms the wheel pair, and on the track 9 was arranged in to the wheel pair on two axletree 2 in front and back through carriage 1, first bumper shock absorber 5 can carry out shock attenuation from top to bottom to carriage 1, and when rocking about carriage 1, the second bumper shock absorber 6 of setting can carry out cushioning effect to rocking of carriage 1, and rock about reducing carriage 1 for the mine car is difficult for derailing, thereby has guaranteed that the goods in the carriage 1 does not drop.

In order to make the mine car have better upper and lower shock absorption effect, the connecting shafts 4 positioned on the upper side and the lower side of the axle 2 are respectively sleeved with a first shock absorber 5, and the first shock absorbers 5 on the lower side of the axle 2 are locked and fixed through a stop washer 7 and a round nut 8 which are arranged at the lower end of the connecting shaft 4.

The section of the axle 2 between the second shock absorbers 6 is arranged as a square shaft to increase the contact area with the first shock absorbers 5, as shown in figure 2, so that the force transmission is more uniform, and the effect of up-and-down shock absorption of the mine car is further improved.

The first damper 5 and the second damper 6 are formed by combining single disc springs in an overlapping, involuting or compounding manner. The stress distribution of the disc spring is uniformly decreased from inside to outside, and the effect of low stroke and high compensation force can be realized. In the embodiment, the combination mode is preferably a superposition combination mode, the superposition surface has friction damping, and the shock absorption and energy consumption effects are more remarkable.

As shown in fig. 3, the wheel 3 is an anti-derailment wheel, and is formed by embedding a left half wheel 31 and a right half wheel 32, and the left half wheel 31 and the right half wheel 32 are both provided with rims 33, so that the wheels can be clamped on the rail to move, and the mine car is prevented from derailing in two directions, thereby being beneficial to underground safe transportation and production; meanwhile, the wheels adopt a split structure of the left half wheel and the right half wheel, so that the mine car can continue to move forwards even if the rim of the left half wheel is damaged; in addition, the left half wheel can be replaced on the rail when the mine car is temporarily parked, so that the time is saved, and the maintenance of the wheels of the mine car is more convenient.

A first bearing 34 is embedded in the left half wheel 31, a second bearing 35 is embedded in the right half wheel 32, and the wheel 3 is rotatably connected with the axle 2 through the first bearing 34 and the second bearing 35; the first bearing 34 and the second bearing 35 are both tapered roller bearings.

A gap is formed between the inner end of the left half wheel 31 and the step of the axle 2, and a return spring 36 is installed in the gap. The presence of the clearance allows a certain axial sliding of the wheel 3 along the axle 2, self-adjustment of the wheel spacing in a self-adaptive manner when the track 9 narrows, and then return under the action of the return spring 36.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A bidirectional damping mine car comprises a car body (1), an axle (2) and wheels (3), and is characterized in that a connecting shaft (4) is vertically welded at the bottom of the car body (1), the connecting shaft (4) penetrates through the axle (2) and is in sliding connection with the axle (2), a first damper (5) is sleeved outside the connecting shaft (4), and the first damper (5) is in contact with the axle (2); second bumper shock absorbers (6) and wheels (3) are sequentially installed at two ends of the axle (2) respectively, and the wheels (3) are rotatably connected with the axle (2) through embedded bearings.

2. The bidirectional shock absorption mine car according to claim 1, wherein the first shock absorbers (5) are sleeved on the connecting shafts (4) on the upper and lower sides of the axle (2), and the first shock absorbers (5) on the lower side of the axle (2) are locked and fixed through stop washers (7) and round nuts (8) arranged at the lower end of the connecting shafts (4).

3. A bi-directional shock-absorbing mine car according to claim 2, characterised in that the section of the axle (2) between the second shock absorbers (6) is arranged as a square axle.

4. A bi-directional shock absorption mine car according to any one of claims 1 to 3, wherein the first shock absorber (5) and the second shock absorber (6) are combined by a single disc spring in a manner of overlapping, involution or compounding.

5. The bi-directional shock absorption mine car according to claim 4, wherein the combination of the belleville springs is a stacked combination.

6. The bi-directional shock-absorbing mine car according to claim 1, characterized in that the wheel (3) is a derailment prevention wheel, which is formed by a left half wheel (31) and a right half wheel (32) which are embedded, and the left half wheel (31) and the right half wheel (32) are provided with a flange (33).

7. The bi-directional shock-absorbing mine car according to claim 6, characterized in that said left half-wheel (31) is embedded with a first bearing (34) and said right half-wheel (32) is embedded with a second bearing (35), said wheel (3) being rotatably connected to said axle (2) by said first and second bearings (34, 35).

8. The bi-directional shock absorbing mining car according to claim 7, characterized in that the first bearing (34) and the second bearing (35) are tapered roller bearings.

9. A bi-directional shock absorption mine car according to claim 6 or 7, characterised in that a gap exists between the inner end of the left half wheel (31) and the step of the axle (2), and a return spring (36) is mounted in the gap.