CN212604294U - Wheel track adjustable axle of concrete prefabricated part trailer - Google Patents

Abstract

The utility model discloses an axle of adjustable wheel base of concrete prefabricated part trailer, including two semi-axis assemblies that distribute along controlling the direction, the semi-axis assembly includes the bidirectional pump, the loose axle, actuating lever and fixed axle, be equipped with the smooth chamber that extends along fixed axle length direction in the fixed axle, sliding seal connects with the slider in the smooth chamber, the slider will slide the chamber and split into inboard chamber and outside chamber, the one end of actuating lever links together with the loose axle, the other end links together with the slider after passing the outside chamber, inboard chamber and outside intracavity all are filled with hydraulic oil, thereby the bidirectional pump is used for making hydraulic oil reciprocating flow between inboard chamber and outside intracavity make the loose axle flexible for the fixed axle, be connected with the walking wheel on the loose axle. The utility model provides an axle of the adjustable track of a concrete prefabricated part trailer that each wheel can independently adjust has solved current trailer for concrete production and can not adapt to the problem that different road width.

Description

Wheel track adjustable axle of concrete prefabricated part trailer

Technical Field

The utility model relates to a concrete prefabricated part production technical field especially relates to an axle of adjustable track of concrete prefabricated part trailer.

Background

In the construction process of road bridge openings, concrete prefabricated parts are often manufactured and assembled on site to form bridge culverts and the like. During the production and transportation of the concrete prefabricated member, a trailer is used for transporting materials and products. The trailer consists of a frame, a carrying platform (a car hopper or a bracket) arranged on the frame and a travelling wheel for supporting the frame. Due to the change of the use environment, trailers with different wheel tracks are often required to transport on the road surfaces with different widths, so that the transportation vehicles are various, and the transportation is further disadvantageously required when the same batch of cargos passes through the road surfaces with different road widths, so that the production efficiency is reduced and the cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides an axle of the adjustable track of a concrete prefabricated part trailer that each wheel can independently adjust has solved current trailer for concrete production and can not adapt to the problem that different road width.

The technical problem is solved by the following technical scheme: the utility model provides an axle of adjustable wheel base of concrete prefabricated part trailer, its characterized in that includes two semi-axis assemblies that distribute along left right direction, the semi-axis assembly includes two-way pump, loose axle, actuating lever and fixed axle, be equipped with the smooth chamber that extends along fixed axle length direction in the fixed axle, sliding seal connects has the slider in the smooth chamber, the slider will the smooth chamber is split into inboard chamber and outside chamber, the one end of actuating lever together the loose axle links together, the other end passes behind the outside chamber with the slider links together, inboard chamber and outside intracavity all are filled with hydraulic oil, thereby two-way pump is used for making hydraulic oil reciprocating flow between inboard chamber and the outside intracavity make the loose axle flexible for the fixed axle, be connected with the walking wheel on the loose axle. When the wheel-mounted hydraulic pump is used, when the distance between a wheel and the center of a vehicle body (hereinafter referred to as a wheel track) needs to be adjusted, hydraulic oil is driven to flow between the inner side cavity and the outer side cavity through the bidirectional pump, the wheel track is increased when the outer side cavity of the hydraulic oil is transferred to the inner side cavity, and the wheel track is reduced when the inner side cavity of the hydraulic oil is transferred to the outer side cavity. The wheels at the two ends of the axle can be independently adjusted by the technical scheme, and the requirement of adjusting the variety can be met.

Preferably, the slider is provided with a channel for communicating the inner cavity with the outer cavity, the bidirectional pump is hermetically connected in the channel to close the channel, one port of the bidirectional pump is communicated with the inner cavity, and the other port of the bidirectional pump is communicated with the outer cavity. The hydraulic oil can be located in a completely closed space, oil way interfaces are reduced, and therefore the phenomenon of water leakage at joints is not easy to generate.

Preferably, a sliding hole extending along the extending direction of the fixed shaft is formed in the outer side end face of the fixed shaft, and the movable shaft is slidably connected in the sliding hole. The connection stability between the movable shaft and the fixed shaft can be improved.

Preferably, the sliding hole and the sliding cavity are separated by a partition plate, and the partition plate and the fixed shaft are hermetically connected together in a welding mode. The sealing reliability is good.

Preferably, the travelling wheel is connected to the movable shaft through a suspension bracket, the fixed shaft is connected to an auxiliary supporting wheel through a lifting mechanism, and when the position of the travelling wheel needs to be adjusted along the axial direction of the fixed shaft, the lifting mechanism drives the auxiliary supporting wheel to descend so that the auxiliary supporting wheel supports the fixed shaft and the travelling wheel is suspended; when the walking wheel is adjusted to a required position, the lifting mechanism drives the auxiliary supporting wheel to ascend and suspend the auxiliary supporting wheel in the air, so that the fixed shaft is supported by the walking wheel. The wheel track can be adjusted in the process of traveling, the traveling wheels are lifted up and are small in abrasion when the wheel track is adjusted, the adjustment is labor-saving, and the bidirectional pump is integrated in the sliding block and is easier to realize due to labor-saving adjustment.

Preferably, the lifting mechanism comprises a lifting cylinder, a vertical rotation stopping slide rod and a rotation stopping slide ring sleeved on the vertical rotation stopping slide rod, one end of the lifting cylinder is connected with the fixed shaft, and the other end of the lifting cylinder is connected with the auxiliary supporting wheel; and one of the vertical rotation stopping sliding rod and the rotation stopping sliding ring is connected with the auxiliary supporting wheel, and the other is connected with the fixed shaft. The normal running of the trailer can be prevented from being influenced by the rotation of the lifting mechanism.

Preferably, the vertical rotation stopping slide rod is connected with the auxiliary support wheel, and a limiting support block positioned below the rotation stopping slide ring is arranged on the vertical rotation stopping slide rod; when the rotation stopping slip ring is supported on the limiting support block, the lowest side of the walking wheel is lower than that of the auxiliary support wheel by less than 5 cm. Even if the travelling wheel blows out and elevation structure damages in the transportation, the phenomenon of turning on one's side can not produce yet, has improved the security of trailer.

The utility model has the following beneficial effects: the tread of each wheel can be independently adjusted; the trailer can adapt to the change of different road widths, so that the road surfaces with different widths can share the trailer, and the model number of the trailer is reduced; the same batch of goods does not need to be transported when passing through different road widths, the production efficiency is high, and the production cost is reduced; the track width can be adjusted during walking.

Drawings

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

FIG. 2 is a schematic front view of the half-shaft unit;

fig. 3 is a partially enlarged schematic view of a portion a of fig. 1.

In the figure: the device comprises a half shaft assembly 2, a bidirectional pump 3, a movable shaft 4, a driving rod 5, a fixed shaft 6, a sliding block 7, an inner cavity 8, an outer cavity 9, a channel 10, one port 11, the other port 12, a sliding hole 13, a partition plate 14, a suspension bracket 15, an auxiliary supporting wheel 16, a lifting cylinder 17, a vertical rotation-stopping sliding rod 18, a rotation-stopping sliding ring 19, a wheel carrier 20, a limiting supporting block 21 and a traveling wheel 22.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Referring to fig. 1, 2 and 3, a track-adjustable axle for a concrete prefabricated vehicle comprises 2 half-axle assemblies 2 distributed in the left-right direction (i.e., the width direction of the vehicle). The half shaft assembly comprises a bidirectional pump 3, a movable shaft 4, a driving rod 5 and a fixed shaft 6. The fixed shaft is internally provided with a sliding cavity extending along the length direction of the fixed shaft. The sliding cavity is connected with a sliding block 7 in a sliding and sealing way. The slide divides the slide chamber into an inner chamber 8 and an outer chamber 9. One end of the driving rod is connected with the movable shaft, and the other end of the driving rod is connected with the sliding block after penetrating through the outer side cavity. The inner cavity and the outer cavity are filled with hydraulic oil. The slide is provided with a channel 10 communicating the inner and outer chambers. The bidirectional pump is hermetically connected in the channel to close the channel. One port 11 of the bi-directional pump communicates with the inboard chamber and the other port 12 communicates with the outboard chamber. The bidirectional pump is a flow pump. The outer side end face of the fixed shaft is provided with a sliding hole 13 extending along the extending direction of the fixed shaft. The movable shaft is connected in the slide hole in a sliding way. The slide hole and the slide chamber are separated by a partition 14. The baffle plate and the fixed shaft are connected together in a sealing mode in a welding mode. The road wheels 22 are connected to the movable shaft by a suspension bracket 15. The fixed shaft is connected with an auxiliary supporting wheel 16 through a lifting mechanism. When the position of the travelling wheel needs to be adjusted along the axial direction of the fixed shaft (namely, the wheel track is adjusted), the lifting mechanism drives the auxiliary supporting wheel to descend so that the auxiliary supporting wheel supports the fixed shaft and the travelling wheel is suspended; when the travelling wheels are adjusted to the required positions, the lifting mechanism drives the auxiliary supporting wheels. The lifting mechanism comprises a lifting cylinder 17, a vertical rotation stopping slide rod 18 and a rotation stopping slide ring 19 sleeved on the vertical rotation stopping slide rod. The piston rod of the lifting cylinder is connected with the fixed shaft, and the cylinder body of the lifting cylinder is connected with the auxiliary supporting wheel. The vertical rotation stopping slide rod is connected with the auxiliary supporting wheel (specifically connected with the wheel carrier 20 of the auxiliary supporting wheel), and the rotation stopping slip ring is connected with the fixed shaft. The vertical rotation stopping slide rod is provided with a limiting support block 21 positioned below the rotation stopping slide ring; when the rotation-stopping slip ring is supported on the limiting support block, the lowest side of the walking wheel is lower than that of the auxiliary support wheel by less than 5 cm (namely, when the walking wheel is supported on the ground plane, the gap between the auxiliary support wheel and the ground plane is less than 5 cm). The bidirectional pump is used for enabling hydraulic oil to flow between the inner cavity and the outer cavity in a reciprocating mode so that the movable shaft can extend and retract relative to the fixed shaft. When the wheels need to be driven to move towards the outer side, the bidirectional pump conveys the hydraulic oil in the outer side cavity to the inner side cavity, and when the wheels need to be driven to move towards the inner side, the bidirectional pump conveys the hydraulic oil in the inner side cavity to the outer side cavity.

Claims (7)

1. The utility model provides an axle of adjustable wheel base of concrete prefabricated part trailer, its characterized in that includes two semi-axis assemblies that distribute along left right direction, the semi-axis assembly includes two-way pump, loose axle, actuating lever and fixed axle, be equipped with the smooth chamber that extends along fixed axle length direction in the fixed axle, sliding seal connects has the slider in the smooth chamber, the slider will the smooth chamber is split into inboard chamber and outside chamber, the one end of actuating lever together the loose axle links together, the other end passes behind the outside chamber with the slider links together, inboard chamber and outside intracavity all are filled with hydraulic oil, thereby two-way pump is used for making hydraulic oil reciprocating flow between inboard chamber and the outside intracavity make the loose axle flexible for the fixed axle, be connected with the walking wheel on the loose axle.

2. The track-adjustable axle of a precast concrete trailer according to claim 1, wherein the slider is provided with a channel communicating the inner cavity and the outer cavity, the bidirectional pump is hermetically connected in the channel to close the channel, one port of the bidirectional pump is communicated with the inner cavity, and the other port of the bidirectional pump is communicated with the outer cavity.

3. The track-adjustable axle of a concrete prefabricated member trailer according to claim 1, wherein the outer side end face of the fixed shaft is provided with a sliding hole extending along the extending direction of the fixed shaft, and the movable shaft is slidably connected in the sliding hole.

4. The adjustable track axle of a concrete prefabricated trailer according to claim 3, wherein the sliding hole and the sliding cavity are separated by a partition plate, and the partition plate and the fixed shaft are hermetically connected together in a welding mode.

5. The track-adjustable axle of a concrete prefabricated part trailer is characterized in that the travelling wheel is connected to the movable shaft through a suspension bracket, the fixed shaft is connected with an auxiliary supporting wheel through a lifting mechanism, and when the position of the travelling wheel needs to be adjusted along the axial direction of the fixed shaft, the lifting mechanism drives the auxiliary supporting wheel to descend so that the auxiliary supporting wheel supports the fixed shaft and the travelling wheel is suspended; when the walking wheel is adjusted to a required position, the lifting mechanism drives the auxiliary supporting wheel to ascend and suspend the auxiliary supporting wheel in the air, so that the fixed shaft is supported by the walking wheel.

6. The track-adjustable axle of a concrete prefabricated part trailer according to claim 5, wherein the lifting mechanism comprises a lifting cylinder, a vertical rotation-stopping slide rod and a rotation-stopping slide ring sleeved on the vertical rotation-stopping slide rod, one end of the lifting cylinder is connected with the fixed shaft, and the other end of the lifting cylinder is connected with the auxiliary supporting wheel; and one of the vertical rotation stopping sliding rod and the rotation stopping sliding ring is connected with the auxiliary supporting wheel, and the other is connected with the fixed shaft.

7. The track-adjustable axle of a concrete prefabricated part trailer according to claim 6, characterized in that the vertical rotation-stopping slide bar is connected with the auxiliary supporting wheel, and a limit supporting block positioned below the rotation-stopping slide ring is arranged on the vertical rotation-stopping slide bar; when the rotation stopping slip ring is supported on the limiting support block, the lowest side of the walking wheel is lower than that of the auxiliary support wheel by less than 5 cm.

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