CN112112081B - A kind of walking type jacking equipment and jacking method - Google Patents

Abstract

The invention relates to a walking type jacking device and a jacking method. The device comprises a base, a first jack, a second jack and an oil cylinder. The first jack is fixedly connected to the base, and the second jack is connected to the base. Rolling connection, the outer cylinder of the oil cylinder is fixedly connected to the first jack, the piston rod of the oil cylinder is fixedly connected to the second jack, the top of the first jack and the second jack are in contact with the piece to be pushed, and the piece to be pushed is connected to the second jack. The first jack is in contact or rolling contact, the contact piece is in contact or rolling contact with the second jack, the oil cylinder drives the second jack to move horizontally, and the first jack and the second jack are connected to the first jack and the second jack through the to-be-pushed piece. The switching of the top contact mode realizes that the piece to be pushed moves horizontally with the second jack, and the oil cylinder, the first jack and the second jack are all connected with the controller. Compared with the prior art, the reliability and safety of the jacking device are effectively improved, and the service life and work efficiency are improved at the same time.

Description

A kind of walking type jacking equipment and jacking method

technical field

The invention relates to the field of bridge construction engineering equipment, in particular to a jacking method of walking jacking equipment.

Background technique

The jacking device has been widely used in the field of bridge construction, especially under the conditions of complex construction environment such as bridges with large spans, rivers, seas, and roads. The jacking construction is divided into two types: drag-type jacking and walking jacking. During the push-pull jacking construction, when the jacking distance is long, the hydraulic cylinder needs to be pushed several times to complete the construction task, and the jacking device must have a reaction force seat. The superimposed construction of the jacking stroke needs to repeatedly remove the reaction force seat and move it forward. , the construction is cumbersome and time-consuming; the walking jacking usually pushes the bridge in 4 steps of “lifting up, horizontally pushing, lowering, and resetting”, which improves the construction efficiency, and the reaction force is only the internal force of the device. However, it needs to be jacked up and put down in sequence every time it moves. During the process of jacking up and putting down, the vibration will cause damage to the object to be pushed. At the same time, the existing walking-type pushing device mostly adopts surface contact, and the sliding friction surface is easy to be pushed during the pushing process. wear.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a jacking method for walking jacking equipment in order to overcome the above-mentioned defects of the prior art.

The object of the present invention can be realized through the following technical solutions:

A walking type jacking device includes a base, a first jack, a second jack and an oil cylinder, the first jack is fixedly connected with the base, and the second jack is connected with the base in a rolling manner. The outer cylinder of the oil cylinder is fixedly connected to the first jack, the piston rod of the oil cylinder is fixedly connected to the second jack, the tops of the first jack and the second jack are in contact with the to-be-pushed piece, the to-be-pushed The contact piece is in contact or rolling contact with the first jack surface, the contact piece is in contact or rolling contact with the second jack surface, and the oil cylinder drives the second jack to move horizontally, and the piece to be pushed contacts the first jack The switching of the contact mode between the jack and the second jack realizes the horizontal movement of the piece to be pushed along with the second jack, and the oil cylinder, the first jack and the second jack are all connected to the controller.

The oil cylinder is a hydraulic oil cylinder, and the first jack and the second jack are both hydraulic jacks.

The second jack is connected to the base in a rolling manner through a jack roller, and the jack roller moves along a slide rail arranged on the base.

The first jack is provided with a first switching module, the first switching module includes a first groove, and a first surface contact body and a first rolling contact body assembly are arranged inside the first groove, the The first surface contact body is vertically lifted and lowered by the first surface contact body lifting mechanism, the first rolling contact body assembly is vertically lifted and lowered by the first rolling contact body assembly lifting mechanism, and the first surface contact body lifting mechanism, The first rolling contact body assembly lifting mechanism is connected with the controller.

The first surface contact body lifting mechanism and the first rolling contact body assembly lifting mechanism are both linear motors.

The first rolling contact body assembly includes a first contact body roller and a second contact body roller, and the first contact body roller, the first surface contact body and the second contact body roller are in sequence along the movement direction of the second jack. arrangement.

The second jack is provided with a second switching module, the second switching module includes a second groove, and the second groove is provided with a second surface contact body and a second rolling contact body assembly, the second The second surface contact body is vertically lifted and lowered by the second surface contact body lifting mechanism, the second rolling contact body assembly is vertically lifted and lowered by the second rolling contact body assembly lifting mechanism, and the second surface contact body lifting mechanism, The second rolling contact body assembly lifting mechanism is connected to the controller.

The second surface contact body lifting mechanism and the second rolling contact body assembly lifting mechanism are both linear motors.

The second rolling contact body assembly includes a third contact body roller and a fourth contact body roller, and the third contact body roller, the second surface contact body and the fourth contact body roller are in sequence along the movement direction of the second jack. arrangement.

A kind of pushing method utilizing the described walking pushing equipment, the method comprises the following steps:

Step S1: the controller controls the second jack to make surface contact with the piece to be pushed, and controls the first jack to make rolling contact with the piece to be pushed;

Step S2: the controller controls the piston rod of the oil cylinder to extend;

Step S3: The controller controls the second jack to be in rolling contact with the piece to be pushed, and removes the surface contact between the second jack and the piece to be pushed after a delay of a set time, and the controller controls the first jack to be in contact with the piece to be pushed surface contact of the piece, and remove the rolling contact between the first jack and the piece to be pushed after a delay of the set time;

Step S4: the controller controls the compression of the piston rod of the oil cylinder.

Compared with the prior art, the present invention has the following advantages:

(1) A first jack, a second jack and an oil cylinder are provided, the first jack is fixedly connected to the base, the second jack is rollingly connected to the base, and the outer cylinder of the oil cylinder is fixedly connected to the first jack The piston rod of the oil cylinder is fixedly connected to the second jack, and the oil cylinder drives the second jack to move horizontally. The two jacks move horizontally, and the piece to be pushed does not need to be put down during the pushing process. It only needs to be jacked up and put down once to complete the push action, which avoids the vibration generated by jacking up and then putting down during the pushing process. At the same time, the parts to be pushed are in contact or rolling contact with the first jack and the second jack, and the contact surface is switched according to the state during the working process, which can effectively reduce the Wear on small contact surfaces, improve service life and work efficiency.

(2) The oil cylinder is a hydraulic oil cylinder, and the first jack and the second jack are both hydraulic jacks, which can realize precise control.

(3) The switching module includes a groove, and a surface contact body and a rolling contact body assembly are arranged inside the groove. The surface contact body is vertically lifted and lowered by the surface contact body lifting mechanism, and the rolling contact body assembly is vertically lifted by the rolling contact body assembly lifting mechanism. Straight up and down, the surface contact body lifting mechanism and the rolling contact body assembly lifting mechanism are connected with the controller, the structure is simple, the implementation is easy, and the efficiency can be effectively improved.

Description of drawings

Fig. 1 is the structural representation of the present invention;

2 is a schematic structural diagram of a first switching module of the present invention;

Fig. 3 (a) is the first state schematic diagram of the jacking method of the present invention;

Figure 3 (b) is a schematic diagram of the first process of the jacking method of the present invention;

Fig. 3 (c) is the second state schematic diagram of the jacking method of the present invention;

Figure 3 (d) is a schematic diagram of the second process of the jacking method of the present invention;

Reference number:

1 is the piece to be pushed; 2 is the first jack; 3 is the base; 4 is the oil cylinder; 5 is the second jack; 6 is the first switching module; 7 is the second switching module; 8 is the first groove ; 9 is the first surface contact body; 10 is the first rolling contact body assembly.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and provides a detailed implementation manner and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

Example

This embodiment provides a walking type jacking device, as shown in FIG. 1 , including a base 3 , a first jack 2 , a second jack 5 and an oil cylinder 4 , and the first jack 2 is fixedly connected to the base 3 , the second jack 5 is rollingly connected with the base 3, the outer cylinder of the oil cylinder 4 is fixedly connected to the first jack 2, the piston rod of the oil cylinder 4 is fixedly connected to the second jack 5, the first jack 2 and the first jack 2 are fixedly connected The top of the second jack 5 is in contact with the piece to be pushed 1, the piece to be pushed 1 is in surface contact or rolling contact with the first jack 2, the contact piece is in surface contact or rolling contact with the second jack 5, and the oil cylinder 4 drives the second jack 5. The jack 5 moves horizontally, and the member 1 to be pushed moves horizontally with the second jack 5 by switching the contact mode between the member 1 to be pushed and the first jack 2 and the second jack 5. Both the jack 2 and the second jack 5 are connected to the controller.

in particular:

Cylinder 4 is a horizontal hydraulic cylinder, the first jack 2 and the second jack 5 are hydraulic jacks, both the oil cylinder 4 and the jack are hydraulic, which can achieve precise control, and the second jack 5 passes through the jack roller and the base. 3 Rolling connection, the jack rollers move along the slide rails arranged on the base 3.

As shown in FIG. 2, the first jack 2 is provided with a first switching module 6, the first switching module 6 includes a first groove 8, and a first surface contact body 9 and a first rolling contact are arranged inside the first groove 8 Body assembly 10, the first surface contact body 9 is vertically lifted by the first surface contact body lifting mechanism, the first rolling contact body assembly 10 is vertically lifted by the first rolling contact body assembly lifting mechanism, and the first surface contact body is lifted The mechanism and the first rolling contact body assembly lifting mechanism are connected with the controller.

The second jack 5 is provided with a second switching module 7, the second switching module 7 includes a second groove, a second surface contact body and a second rolling contact body assembly are arranged inside the second groove, and the second surface contact body passes through The second surface contact body lifting mechanism is vertically lifted, and the second rolling contact body assembly is vertically lifted by the second rolling contact body assembly lifting mechanism. The second surface contact body lifting mechanism, the second rolling contact body assembly lifting mechanism and the control device connection.

The first surface contact body lifting mechanism and the first rolling contact body assembly lifting mechanism are both linear motors. The first surface contact body lifting mechanism and the first rolling contact body assembly lifting mechanism are fixed at the bottom of the first groove 8, and the second surface The contact body lifting mechanism and the second rolling contact body assembly lifting mechanism are both linear motors, and the second surface contact body lifting mechanism and the second rolling contact body assembly lifting mechanism are fixed on the bottom of the second groove.

The first rolling contact body assembly 10 includes a first contact body roller and a second contact body roller, and the first contact body roller, the first surface contact body 9 and the second contact body roller are in sequence along the movement direction of the second jack 5 . Arrangement, the second rolling contact body assembly includes a third contact body roller and a fourth contact body roller, and the third contact body roller, the second surface contact body and the fourth contact body roller are in sequence along the movement direction of the second jack 5 arrangement.

The first surface contact body 9, the second surface contact body, the first rolling contact body assembly 10 and the second rolling contact body assembly are all made of high-density alloy steel,

The present embodiment also provides a pushing method utilizing the walking pushing device, the method comprising the following steps:

Step S1: As shown in Figure 3(a), the controller controls the second jack 5 to be in surface contact with the piece to be pushed 1, and controls the first jack 2 to roll in contact with the piece to be pushed 1, this state is called the first state;

Step S2: As shown in Figure 3(b), the controller controls the piston rod of the oil cylinder 4 to extend, and the second jack 5 drives the to-be-pushed member 1 to move, and this process is called the first process;

Step S3: As shown in Figure 3(c), the controller controls the second jack 5 to be in rolling contact with the piece to be pushed 1, and removes the surface between the second jack 5 and the piece to be pushed 1 after a delay of the set time contact, the controller controls the first jack 2 to be in surface contact with the piece to be pushed 1, and removes the rolling contact between the first jack 2 and the piece to be pushed 1 after a delay of the set time, so as to realize that there is no need to put down the piece to be pushed 1 When the contact mode is switched, the second jack 5 is in rolling contact with the piece to be pushed 1 and the first jack 2 is in surface contact with the piece to be pushed 1, which is called the second state, and the set time can be 10s;

Step S4: the controller controls the piston rod of the oil cylinder 4 to compress, the second jack 5 moves back to the original position, and the position of the piece to be pushed 1 remains unchanged at this time, and this process is called the second process.

Step S5: Steps S1-S4 are repeated until the to-be-pushed member 1 is moved to a proper position.

Claims (8)

1. A walking type jacking device, characterized in that it comprises a base (3), a first jack (2), a second jack (5) and an oil cylinder (4), the first jack (2) It is fixedly connected to the base (3), the second jack (5) is rollingly connected to the base (3), and the outer cylinder of the oil cylinder (4) is fixedly connected to the first jack (2), The piston rod of the oil cylinder (4) is fixedly connected to the second jack (5). The push piece (1) is in surface contact or rolling contact with the first jack (2), the to-be-pushed piece (1) is in surface contact or rolling contact with the second jack (5), and the oil cylinder (4) drives the The second jack (5) moves horizontally, and by switching the contact mode of the piece to be pushed (1) with the first jack (2) and the second jack (5), the piece to be pushed (1) can follow the second jack (5). The jack (5) moves horizontally, and the oil cylinder (4), the first jack (2) and the second jack (5) are all connected with the controller; The first jack (2) is provided with a first switching module (6), the first switching module (6) includes a first groove (8), and the first groove (8) is provided with a first groove (8). A first surface contact body (9) and a first rolling contact body assembly (10), the first surface contact body (9) is vertically lifted by a first surface contact body lifting mechanism, and the first rolling contact body assembly (10) (10) vertical lifting is carried out through the first rolling contact body assembly lifting mechanism, and the first surface contact body lifting mechanism and the first rolling contact body assembly lifting mechanism are connected to the controller; The second jack (5) is provided with a second switching module (7), the second switching module (7) includes a second groove, and a second surface contact body and a second surface contact body are arranged inside the second groove. The second rolling contact body assembly, the second surface contact body is vertically lifted and lowered by the second surface contact body lifting mechanism, and the second rolling contact body assembly is vertically lifted and lowered by the second rolling contact body assembly lifting mechanism, so The second surface contact body lifting mechanism and the second rolling contact body assembly lifting mechanism are connected to the controller. 2. A kind of walking type jacking device according to claim 1, characterized in that, the oil cylinder (4) is a hydraulic oil cylinder, and the first jack (2) and the second jack ( 5) Both are hydraulic jacks. 3. A walking type jacking device according to claim 1, characterized in that, the second jack (5) is connected to the base (3) by rolling through a jack roller, and the jack roller is arranged along the The slide rail of the base (3) moves. 4 . The walking type pushing device according to claim 1 , wherein the first surface contact body lifting mechanism and the first rolling contact body assembly lifting mechanism are both linear motors. 5 . 5. A walking type pushing device according to claim 1, wherein the first rolling contact body assembly (10) comprises a first contact body roller and a second contact body roller, the first contact body roller The contact body roller, the first surface contact body (9) and the second contact body roller are arranged in sequence along the movement direction of the second jack (5). 6 . The walking type pushing device according to claim 1 , wherein the second surface contact body lifting mechanism and the second rolling contact body assembly lifting mechanism are both linear motors. 7 . 7 . The walking type pushing device according to claim 1 , wherein the second rolling contact body assembly comprises a third contact body roller and a fourth contact body roller, and the third contact body roller , the second surface contact body and the fourth contact body rollers are arranged in sequence along the movement direction of the second jack (5). 8. a kind of jacking method utilizing any described walking jacking equipment of claim 1-7, is characterized in that, this method comprises the following steps: Step S1: the controller controls the second jack (5) to be in surface contact with the piece to be pushed (1), and controls the first jack (2) to be in rolling contact with the piece to be pushed (1); Step S2: the controller controls the piston rod of the oil cylinder (4) to extend; Step S3: The controller controls the second jack (5) to be in rolling contact with the piece to be pushed (1), and removes the surface contact between the second jack (5) and the piece to be pushed (1) after a delay of the set time , the controller controls the first jack (2) to be in surface contact with the piece to be pushed (1), and removes the rolling contact between the first jack (2) and the piece to be pushed (1) after a delay of the set time; Step S4: the controller controls the compression of the piston rod of the oil cylinder (4).

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