CN203427918U - Caterpillar track chassis of beach cleaning vehicle - Google Patents

Abstract

The utility model discloses a crawler chassis of a beach cleaning vehicle, which comprises a left crawler frame, a right crawler frame, a fuel tank, a vehicle frame, a balance beam and a shock absorber; the rear parts of the left and right crawler frames are respectively hinged on the fuel The two ends of the box, the front part of the two are respectively provided with a said shock absorber, and the two ends of the balance beam are respectively placed on the shock absorbers on both sides; the front middle part of the vehicle frame is connected to the middle part of the balance beam , the rear two sides are connected to the two sides of the fuel tank, so that the vehicle frame is respectively connected with the fuel tank and the balance beam in a three-point connection. Since the rear parts of the left and right crawler frames can swing up and down around the shafts on both sides of the fuel tank, the crawler frame can realize terrain-following driving, which reduces the vibration of the vehicle and greatly improves the driving speed; and because the fuel tank is placed on the vehicle The lower part of the frame reduces the height of the center of mass of the vehicle and reduces the load on the frame.

Description

A crawler chassis of a beach cleaning vehicle

technical field

The utility model relates to the technical field of sanitation machinery, in particular to a crawler chassis for medium and large beach cleaning vehicles.

Background technique

The beach cleaning vehicle is mainly used to clean up the garbage on the beach. It has many working devices, complex structure and heavy weight. At present, the walking mechanism of beach cleaning vehicles in domestic and foreign markets is mainly tire-type. Due to the poor bearing capacity of tires, subsidence is prone to occur especially when operating on artificial beaches.

The existing crawler-type self-propelled beach cleaning vehicles generally have a fully rigid structure with left and right crawler frames rigidly fixed. The small-sized beach cleaning vehicles with a speed of less than 5km/h and a cleaning width of less than 1m are not suitable for cleaning large-scale beaches. Therefore, medium and large crawler-type beach cleaning vehicles with a vehicle speed greater than 8km/h, a cleaning width greater than 1.3m, and a lower grounding ratio are more in line with market demand.

Due to the low pressure bearing capacity of the sandy ground, the beach cleaning vehicle is required to have a smaller weight and a larger grounding area, so that the grounding specific pressure of the crawler is smaller than the pressure bearing capacity of the sandy ground.

The exclusive working mechanism of the beach cleaning vehicle such as: garbage picking device, vibrating screening conveying device must be installed in the middle of the car body. When working, the working mechanism needs to be put down to pick up the garbage on the beach. After the work is completed or when the transfer is carried out, the working mechanism needs to be retracted and lifted. Therefore, there must be enough space between the two crawler frames. At the same time, due to the particularity of the structure, it is necessary to Reduce the weight of the upper part of the frame.

Utility model content

The technical problem to be solved by the utility model is to provide a crawler chassis of a beach cleaning vehicle, which can enable the crawler frame to follow the terrain to increase the driving speed, and can reduce the height of the center of mass to reduce the load on the frame.

For solving the problems of the technologies described above, the technical solution of the utility model is:

A crawler chassis of a beach cleaning vehicle, including a left crawler frame, a right crawler frame, a fuel tank, a vehicle frame, a balance beam and a shock absorber; the rear parts of the left and right crawler frames are respectively hinged to the two ends of the fuel tank, The front part of the two is respectively provided with a shock absorber, and the two ends of the balance beam are respectively placed on the shock absorbers on both sides; the front middle part of the vehicle frame is connected to the middle part of the balance beam, and the rear two sides are connected On both sides of the fuel tank, the vehicle frame is respectively connected to the fuel tank and the balance beam in a three-point connection.

The shock absorber is a wheel-shaped shock absorber, which includes a bracket fixed on the left and right crawler frames, a hinge pin is fixed on the bracket, and a pulley is set on the hinge pin; the two ends of the balance beam are placed on the pulley superior.

The pulley is composed of a three-layer structure, which is an outer cover, a rubber buffer layer and an inner cover from the outside to the inside.

There is clearance fit between the inner sleeve and the hinge pin.

The left and right crawler frames are symmetrical structures, and the left and right crawler frames are triangular structures composed of rear end bearing housings, diagonal braces and main beams, wherein sliding bearings are installed in the bearing housings; the left and right sides of the fuel tank The lower part of each end is provided with a stepped shaft, and the stepped shaft is hingedly connected with the bearing housings of the left and right crawler frames.

The upper parts of the left and right ends of the fuel tank are respectively provided with an upper mounting seat, and the rear two ends of the vehicle frame are respectively provided with a lower mounting seat, and the two lower mounting seats of the vehicle frame are respectively connected with the two mounting seats of the fuel tank. The upper mounts are coupled in a rigidly fixed manner.

A front mounting seat is arranged in the middle of the front part of the vehicle frame, and the front mounting seat is hingedly connected to the shaft hole provided in the middle of the balance beam through a pin shaft.

A reinforcing plate is arranged inside the box body of the fuel tank.

The balance beam is an equal-strength beam with a large middle and small ends.

The front part of the vehicle frame is also provided with two limit buffers, and the two limit buffers are arranged at symmetrical positions above the two sides of the balance beam.

After adopting the above scheme, the utility model has the following advantages:

1. Since the rear parts of the left and right track frames are hinged on both sides of the fuel tank, the left and right track frames can swing up and down around the shafts on both sides of the fuel tank, so that the track frames can follow the terrain and reduce the vibration of the vehicle. Increased driving speed;

2. Because the utility model places the fuel tank under the vehicle frame, the height of the center of mass of the whole vehicle is reduced, the load on the vehicle frame can be reduced, and the box-shaped structure of the fuel tank has a relatively large section modulus, which can effectively withstand the vehicle during operation. , the bending moment generated during the steering process;

3. The specially designed wheel-shaped shock absorber not only has a good shock absorption effect, but also can prevent the sliding wear caused by the balance beam during the swing process;

4. There is enough space between the track frames on both sides for installing the working mechanism, which avoids the phenomenon that the whole vehicle is too long and uncoordinated due to the working mechanism installed in front of the track frame.

Description of drawings

Fig. 1 is the top view of the utility model;

Fig. 2 is the structural representation of track frame described in the utility model;

Fig. 3 is A-A sectional view of Fig. 1;

Fig. 4 is the B direction view of Fig. 3;

Fig. 5 is a C-C sectional view of Fig. 3;

Fig. 6 is a schematic structural view of the wheel-shaped shock absorber of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

The utility model discloses a crawler chassis of a beach cleaning vehicle, as shown in Fig. 1 to Fig. 6, which is a preferred embodiment of the utility model. The crawler chassis includes a left crawler frame 1, a right crawler frame 2, a fuel tank 3, a vehicle frame 4, a balance beam 5 and a shock absorber 6. in:

The rear parts of the left and right crawler frames 1 and 2 are respectively hinged to the two ends of the fuel tank 3, and a shock absorber 6 is respectively provided at the front parts of the two, and the two ends of the balance beam 5 are respectively placed On the shock absorbers 6 on both sides, the front middle part of the vehicle frame 4 is connected to the middle part of the balance beam 5, and the rear two sides are connected to the two sides of the fuel tank 3, so that the vehicle frame 4 is connected at three points The way is connected with the fuel tank 3 and the balance beam 5 respectively.

further more:

The left and right crawler frames 1, 2 may be of symmetrical structure. As shown in Figure 2, taking the left crawler frame 1 as an example, the left crawler frame 1 can be a triangular structure with good rigidity and strength composed of a rear end bearing seat 11, a diagonal strut 12, and a main beam 13, wherein the inner bearing seat 11 Sliding bearings 14 are installed. Correspondingly, the lower parts of the left and right ends of the fuel tank 3 are respectively provided with a stepped shaft 31, and the stepped shaft 31 is hingedly connected with the bearing housing 11 of the crawler frame.

As shown in Figures 3 and 4, the upper parts of the left and right ends of the fuel tank 3 can be respectively provided with an upper mount 32, 35, and the rear ends of the vehicle frame 4 are respectively provided with a lower mount 41, 42 , the two lower mounts 41, 42 of the vehicle frame 4 are respectively connected with the two upper mounts 32, 35 of the fuel tank 3 in a rigidly fixed manner. As shown in Figures 3 and 5 again, a front mount 43 can be arranged in the middle of the front part of the vehicle frame 4, which is hingedly connected with the shaft hole 51 in the middle of the balance beam 5 through a pin shaft 44. The whole vehicle frame 4 is connected with the left and right track frames and the fuel tank in a three-point manner by the lower mounts 41, 42 and the front mounts 43 like this. When the vehicle is running on an uneven road surface, the left and right crawler frames 1 and 2 can swing up and down according to the height of the ground, and the balance beam 5 also swings up and down around the pin shaft 44, so that the vehicle frame 4 can be kept on an overall plane Without the interference of undulating ground, the frame will not generate additional deformation stress and cause damage.

A reinforcing plate 34 can be provided inside the box body 33 of the fuel tank 3 , and the reinforcing plate 34 can enhance the strength and rigidity of the box body 33 . The box-shaped structure of the box body 33 is preferably designed to have a larger section modulus for bearing the bending moment generated by the left and right track frames during operation and steering.

The balance beam 5 may be an equal-strength beam with a large middle and small ends. Its two ends 52 and 53 are arranged on the above-mentioned shock absorber 6 .

Described shock absorber 6 can be wheel-shaped shock absorber, as shown in Figure 5 and Figure 6, this wheel-shaped shock absorber 6 comprises the support 64 that is fixed on left and right crawler frame 1,2, and this support 64 is fixed Hinge pin 65 is arranged, and pulley 66 is sleeved on this hinge pin 65, and described balance beam 5 two ends 52,53 are placed on pulley 66. Described pulley 66 can be made up of three-layer structure, is outer jacket 61, rubber buffer layer 62 and inner sleeve 63 successively from outside to inside, and this rubber buffer layer 62 can effectively reduce the vibration that produces during driving, and this inner sleeve 63 It can be a clearance fit with the hinge pin 65 . When the vehicle is running on undulating roads, when the left and right crawler frames 1, 2 swing up and down, the two ends 52, 53 of the balance beam 5 and the outer cover 61 of the shock absorber 6 will produce relative displacements. At this time, the pulley 66 will rotate. Wear and tear caused by the sliding friction between the jacket 61 and the balance beam 5 is prevented.

The front part of the vehicle frame 4 is also provided with two limit buffers 45 , and the two limit buffers 45 are arranged at symmetrical positions above both sides of the balance beam 5 . When the left and right crawler frames 1 and 2 are running on undulating roads, the swing of the crawler frame will drive the balance beam 5 to tilt. When one side is raised to a certain height, the balance beam 5 will contact the limit buffer 45 on this side, which can Limit the swing range of the crawler frame, which can prevent the crawler belt 7 on the crawler frame from interfering with the lower plane of the vehicle frame 4 due to the excessive swing height of the crawler frame, and protect the vehicle frame 4 and the crawler belt 7 from damage.

As shown in Fig. 5, the height H of the balance beam 5 from the ground can be between 600-900mm, which is used to provide the installation of the working mechanism of the beach cleaning vehicle.

The above are only preferred embodiments of the present utility model, and are not intended to limit the technical scope of the present utility model. Therefore, any changes or modifications made according to the claims of the utility model and the specification should belong to the utility model. Within the scope covered by the utility model patent.

Claims (10)

1. a crawler body for sandy beach cleaning cart, is characterized in that: comprise left track frame, right-hand track chiain frame, fuel tank, vehicle frame, equalizing bar and shock absorber; The rear portion of this left and right track frame is articulated with respectively the two ends of this fuel tank, and both front portions are respectively equipped with a described shock absorber, and the two ends of this equalizing bar are placed in respectively on the shock absorber of both sides; The middle part, the place ahead of this vehicle frame is connected to described equalizing bar middle part, and both sides, rear are connected to the both sides of described fuel tank, thereby this vehicle frame is connected with equalizing bar with fuel tank respectively in three point-connected modes.

2. the crawler body of a kind of sandy beach according to claim 1 cleaning cart, is characterized in that: described shock absorber is wheel shape shock absorber, and it comprises the support being fixed on the track frame of left and right, on this support, is fixed with hinge pin, and on this hinge pin, cover has a pulley; Described equalizing bar two ends are placed on pulley.

3. the crawler body of a kind of sandy beach according to claim 2 cleaning cart, is characterized in that: described pulley is comprised of three-decker, is followed successively by from outside to inside overcoat, cushion rubber layer and inner sleeve.

4. the crawler body of a kind of sandy beach according to claim 3 cleaning cart, is characterized in that: between described inner sleeve and described hinge pin, be free-running fit.

5. according to the crawler body of a kind of sandy beach cleaning cart one of claim 1-4 Suo Shu, it is characterized in that: described left and right track frame is symmetrical structure, the triangular structure that this left and right track frame forms by rear end bearing seat, hound, girder, is provided with plain bearing in its bottom bracket; The bottom at described two ends, fuel tank left and right is respectively provided with a stepped shaft, and this stepped shaft is connected in hinged way with the bearing seat of left and right track frame.

6. the crawler body of a kind of sandy beach according to claim 1 cleaning cart, it is characterized in that: the top at described two ends, fuel tank left and right is respectively provided with a upper mount pad, the two ends, rear portion of described vehicle frame are respectively provided with a lower mount pad, and two lower mount pads of this vehicle frame connect to rigidly fix mode with two upper mount pads of fuel tank respectively.

7. according to the crawler body of a kind of sandy beach cleaning cart described in claim 1 or 6, it is characterized in that: described vehicle frame anteriomedial is provided with a front mount pad, this front mount pad is connected together in hinged way by a bearing pin and the axis hole that is arranged on described equalizing bar middle part.

8. according to the crawler body of a kind of sandy beach cleaning cart one of claim 1-4 Suo Shu, it is characterized in that: the box house of described fuel tank is provided with brace panel.

9. according to the crawler body of a kind of sandy beach cleaning cart one of claim 1-4 Suo Shu, it is characterized in that: described equalizing bar is a constant strength beam small in ends broad in the middle.

10. according to the crawler body of a kind of sandy beach cleaning cart one of claim 1-4 Suo Shu, it is characterized in that: described vehicle frame front portion is also provided with two limiting buffer devices, two limiting buffer devices are located at top, described equalizing bar both sides symmetric position.

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