CN212202061U

CN212202061U - Slip table moving mechanism and undercut platform truck

Info

Publication number: CN212202061U
Application number: CN202020675088.8U
Authority: CN
Inventors: 贾体锋; 赵兴寅; 杜祥虎; 梁凤远; 马建乐
Original assignee: Xuzhou XCMG Railway Equipment Co Ltd
Current assignee: Xuzhou XCMG Railway Equipment Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-12-22
Anticipated expiration: 2030-04-28

Abstract

The utility model discloses a slip table moving mechanism and undercut platform truck, slip table moving mechanism include base, actuating mechanism and slip table, are equipped with outside slide and middle slide on the base, and the base both ends are equipped with the front end plate respectively and pull with the rear end, and the slip table is reciprocal to slide on the slide of outside. The driving mechanism comprises a movable pulley block and a power oil cylinder, the movable pulley block comprises a front end movable pulley, a rear end movable pulley, a forward steel wire rope and a backward steel wire rope, a cylinder rod end of the power oil cylinder is fixed on a rear end plate, the rear end movable pulley is fixed on one side, close to the cylinder rod, of the cylinder body, the front end movable pulley is arranged on the middle slideway, one end of the forward steel wire rope is fixed on the sliding table, and the other end of the forward steel wire rope bypasses the front end movable pulley and is fixed on. One end of the retreating steel wire rope is fixed on the front end plate, and the other end of the retreating steel wire rope bypasses the rear end movable pulley and is fixed on the sliding table. The structure can increase the stroke of the sliding table, so that the sliding table slides stably and has good reliability.

Description

Slip table moving mechanism and undercut platform truck

Technical Field

The utility model relates to an engineering machine tool technical field, concretely relates to slip table moving mechanism and undercut platform truck.

Background

In the construction of subway tunnels, because of construction section space is narrow and small, to mechanized construction requirement higher, remove equipment size and must satisfy narrow and small space construction requirement, still must reduce required equipment type quantity in the process as far as on the basis that satisfies the construction process requirement, avoid prolonging the engineering time because of changing process equipment, increase construction risk. Therefore, one machine with multiple functions is gradually the first choice for subway tunnel construction. Most of the existing equipment used for subway tunnel construction is single-function equipment, namely the equipment only has the capacity of using one working device or machine tool. The other part is to realize one machine with multiple functions, and the equipment can realize the functions by adding a working arm; in order to avoid the interference problem during the construction of the multiple working arms in the narrow space, a movable platform (i.e. a sliding table) is generally designed to drive the working arms in the non-working state to shift so as to avoid the interference. In order to realize the movement of the sliding table, the prior art mainly adopts the modes that a motor (or a motor) is arranged on the sliding table to drive a gear to move along a linear rack, an oil cylinder directly drives the sliding table to move, and the like. The oil cylinder directly drives the sliding table to move, the structure is simple, but the requirement on the installation space is large due to the limitation of the stroke and the installation distance of the oil cylinder, and the requirement on the movement of the sliding table with a large stroke cannot be met; the sliding table is provided with a motor (or a motor) to drive the gear to move along the linear rack, so that the machining requirement on the gear rack is high, the installation of the motor (or the motor) still has a large space installation requirement, and the defect that the gear rack is not easy to replace after being damaged is overcome.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a slip table moving mechanism and undercut platform truck for the slip table removes provides power, can satisfy the great removal stroke requirement of slip table, and the installation is changed simply, reduces intensity of labour, improves work efficiency.

In order to achieve the purpose, the sliding table moving mechanism comprises a base, a driving mechanism and a sliding table, wherein the base is a long-strip-shaped cavity and is provided with an outer side slideway and a middle slideway along the length direction, the two ends of the base are respectively provided with a front end plate and a rear end plate, and the sliding table slides on the outer side slideway in a reciprocating manner; the driving mechanism is positioned in the middle slideway and comprises a movable pulley block and a power oil cylinder, and the power oil cylinder comprises a cylinder rod and a cylinder body; the movable pulley block comprises a front end movable pulley, a rear end movable pulley, a forward steel wire rope and a backward steel wire rope, one end of the cylinder rod is fixed on the rear end plate, and the other end of the cylinder rod extends into the cylinder body; the rear end movable pulley is fixed at one end of the cylinder body close to the cylinder rod, the front end movable pulley is arranged on the middle slideway and is fixedly connected with the other end of the cylinder body, one end of the advancing steel wire rope is fixed on the sliding table, and the other end of the advancing steel wire rope bypasses the front end movable pulley and is fixed on the rear end plate, and the sliding table is driven to advance on the outer slideway by the extension of the cylinder body; one end of the retreating steel wire rope is fixed on the front end plate, and the other end of the retreating steel wire rope bypasses the movable pulley at the rear end and is fixed on the sliding table, and the sliding table is driven to retreat by retracting the cylinder body.

Furthermore, outer side sliding blocks are arranged on two sides of the bottom end of the sliding table and clamped on the outer side sliding ways; the front end movable pulley is provided with a middle sliding block, and the middle sliding block is clamped on the middle slide way.

Further, the power oil cylinder also comprises a steel pipe; the cylinder rod is of a cavity structure, and the steel pipe penetrates through the cylinder rod to supply oil to a rodless cavity of the cylinder barrel; the cavity structure of the cylinder rod supplies oil to a rod cavity of the cylinder body; two oil inlets are arranged at the end part of the cylinder rod.

Furthermore, the driving mechanism also comprises a connecting rod, and the front end movable pulley is fixedly connected with the cylinder body through the connecting rod; the connecting rod includes extension pipe and threaded rod, and extension pipe and threaded rod pass through threaded connection, the one end and the cylinder body fixed connection of extension rod, the one end and the front end movable pulley fixed connection of screwed pipe.

Further, the thread is a trapezoidal thread.

Further, still include the stopper, the stopper sets up on the cylinder body to with cylinder body fixed connection, the stopper card is located in the middle slide, and can follow the reciprocating sliding of middle slide.

The utility model also provides a secretly dig platform truck, including running gear and frame, the frame sets up on running gear, still includes the aforesaid slip table moving mechanism, slip table moving mechanism is fixed to be set up on the frame.

The utility model has the advantages that: the power oil cylinder is matched with the front end movable pulley and the rear end movable pulley, so that the stroke of the sliding table moving on the outer side slideway can be lengthened, the running mode is more reasonable, the freedom degree of advancing and retreating is high, the internal equipment is convenient to mount and dismount, and the internal equipment is easy to replace.

Drawings

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

FIG. 2 is a schematic view of the structure of the base;

FIG. 3 is a cross-sectional view of the base;

FIG. 4 is a cross-sectional view of the telescoping arm;

FIG. 5 is a diagram of the position of the movable sheave assembly relative to the power cylinder;

FIG. 6 is a cross-sectional view of the power cylinder;

FIG. 7 is a left side view of FIG. 4;

in the figure, 1-base, 11-outer slideway, 12-middle slideway, 13-front end plate, 14-rear end plate, 2-sliding table, 3-front end movable pulley, 4-rear end movable pulley, 5-forward steel wire rope, 6-backward steel wire rope, 7-power oil cylinder, 71-cylinder rod, 72-cylinder body, 73-steel pipe, 8-lengthening pipe, 9-threaded rod and 10-limiting block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-3, a sliding table moving mechanism includes a base 1, a driving mechanism, and a sliding table 2, where the base is a strip-shaped cavity, the base is provided with an outer slide 11 and a middle slide 12 along a length direction, two ends of the base 1 are respectively provided with a front end plate 13 and a rear end plate 14, and the sliding table 2 slides on the outer slide 11 in a reciprocating manner.

The driving mechanism is positioned in the middle slideway 12 and comprises a movable pulley block and a power cylinder 7, and the power cylinder 7 comprises a cylinder rod 71 and a cylinder body 72. The movable pulley block comprises a front end movable pulley 3, a rear end movable pulley 4, a forward steel wire rope 5 and a backward steel wire rope 6, and the front end movable pulley 3 and the rear end movable pulley 4 are installed through installation plates. The head of a cylinder rod 71 of the power cylinder 7 is fixed on the rear end plate 14, and the rear end movable pulley 4 is fixed on one side of the cylinder body 72 close to the cylinder rod 71 and moves synchronously with the cylinder body 72. The front end movable pulley 3 is arranged on the middle slideway 12 and is fixedly connected with the tail part of the cylinder body of the power cylinder 7, one end of an advancing steel wire rope 5 is fixed on the sliding table 2, the other end of the advancing steel wire rope bypasses the front end movable pulley 3 and is fixed on the rear end plate 14, and the sliding table 2 is driven to advance on the outer slideway 11 by the extension of the cylinder body of the power cylinder 7. One end of a retreating steel wire rope 6 is fixed on the front end plate 13, and the other end of the retreating steel wire rope bypasses the rear end movable pulley 4 to be fixed on the sliding table 2, and the sliding table 2 is driven to retreat by retracting the cylinder body. The direction here is forward with the front end movable pulley 3, rearward with the rear end movable pulley 4, reverse with the power cylinder 7, rearward with the cylinder rod, and forward with the cylinder body.

The advancing steel wire rope 5 and the front end movable pulley 3 form a movable pulley mechanism which is used for advancing power of the sliding table 2, and the power oil cylinder 7 provides power and can generate a sliding table moving distance which is twice as long as the stroke of the oil cylinder; the retreating steel wire rope 6 and the rear end movable pulley 4 form a movable pulley mechanism which is used for retreating the sliding table 2, and the power oil cylinder 7 provides power and can generate a sliding table moving distance which is twice as long as the stroke of the oil cylinder.

As shown in fig. 4, the power cylinder 7 further includes a steel pipe 73, the cylinder rod 71 is a hollow structure, the steel pipe 73 penetrates through the cylinder rod 71 to supply oil to the rodless cavity of the cylinder body 72, the hollow structure of the cylinder rod 71 supplies oil to the rod cavity of the cylinder body 72, and two oil inlets are arranged at the head of the cylinder rod 71. An oil outlet hole is formed in the wall of the cylinder rod 71, oil in the cylinder rod 71 can be conveyed into a rod cavity of the cylinder body 72, a round hole is formed in the tail end of the cylinder rod 71, and a steel pipe 73 penetrates through the round hole to supply oil to a rodless cavity of the cylinder body 72. The structural mode that the cylinder rod 71 is fixed and the cylinder body 72 moves relative to the cylinder rod 71 is convenient for installing the front end movable pulley 3 and the rear end movable pulley 4, so that the structural layout of the power cylinder 7 and the movable pulley assembly is more reasonable, in addition, the hollow structure of the cylinder rod 71 and the internal steel pipe supply oil, the oil supply mode is greatly different from that of a common oil cylinder, and the structural mode is an innovation of the motion mode of the cylinder body.

Further, the two sides of the bottom end of the sliding table 2 are provided with outer side sliding blocks, and the outer side sliding blocks are clamped on the outer side sliding ways 11. The front end movable pulley 3 is provided with a middle slide block which is clamped on the middle slide way 12. As shown in fig. 3, the cross-section of the outer slide 11 and the inner slide 12 is V-shaped, so that the shapes of the outer slide and the middle slide in the slides are also V-shaped structures.

The driving mechanism further comprises a connecting rod, the connecting rod comprises an extension pipe 8 and a threaded rod 9, the extension pipe 8 is in threaded connection with the threaded rod 9, one end of the extension pipe 8 is fixedly connected with the cylinder body of the power cylinder 7, and one end of the threaded rod 9 is movably connected with the front-end movable pulley 3. Because to the construction operating mode of difference, the biggest stroke of slip table has different requirements, and some needs the slip table stroke shorter operation more convenient, and some needs the longer operation of slip table stroke more convenient. In this, the effect of connecting rod is exactly the biggest stroke that makes the slip table can be adjusted, realizes the stroke spacing of slip table 2 promptly. When the maximum stroke needs to be shortened, the lengthening pipe and the threaded pipe rotate to enable the connecting rod to be lengthened as a whole, and at the moment, the head of the front end movable pulley is firstly contacted with the front end plate when advancing, so that the stroke of the sliding table is shortened. When the stroke of slip table needs to be lengthened, the same principle, through the cooperation of extension pipe and threaded rod, makes the connecting rod generally shorten, just can make the stroke extension of slip table. And after the maximum stroke is fixed, the nut between the lengthening pipe and the threaded rod is used for locking and fixing. In addition, an extension pipe 8 and a threaded rod 9 are arranged, so that tensioning of the advancing steel wire rope 5 can be realized.

Preferably, the external screw thread on the threaded rod is trapezoidal thread, and the bearing capacity is increased, and the stroke of one turn is increased faster.

As shown in fig. 7, the sliding table moving structure further includes a limiting block 10, and the limiting block 10 is disposed on the cylinder body of the power cylinder 7 and is fixedly connected to the cylinder body. The shape of the limiting block 10 is trapezoidal, and two corners below the limiting block are clamped in the middle slide way 12 and can slide along the middle slide way in a reciprocating mode. The top of the figure is a mounting block for mounting the rear movable pulley. The stopper 10 is provided to prevent the cylinder body of the actuating cylinder from being twisted during the reciprocating movement of advancing and retreating, resulting in damage to the cylinder.

The utility model also discloses a secretly dig platform truck, including running gear and frame, the frame sets up on running gear, still includes foretell slip table moving mechanism, and the slip table moving mechanism is fixed to be set up in one side on the frame.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes that can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art can be made within the scope of the claims of the present invention.

Claims

1. A slip table moving mechanism which characterized in that: the sliding table comprises a base (1), a driving mechanism and a sliding table (2), wherein the base (1) is a long strip-shaped cavity, an outer side slideway (11) and a middle slideway (12) are arranged along the length direction, a front end plate (13) and a rear end plate (14) are respectively arranged at two ends of the base (1), and the sliding table (2) slides on the outer side slideway (11) in a reciprocating manner; the driving mechanism is positioned in the middle slideway (12) and comprises a movable pulley block and a power cylinder (7), and the power cylinder (7) comprises a cylinder rod (71) and a cylinder body (72); the movable pulley block comprises a front end movable pulley (3), a rear end movable pulley (4), a forward steel wire rope (5) and a backward steel wire rope (6), one end of the cylinder rod (71) is fixed on the rear end plate (14), and the other end of the cylinder rod extends into the cylinder body (72); the rear end movable pulley (4) is fixed at one end, close to the cylinder rod (71), of the cylinder body (72), the front end movable pulley (3) is arranged on the middle slide way (12) and is fixedly connected with the other end of the cylinder body (72), one end of the advancing steel wire rope (5) is fixed on the sliding table (2), the other end of the advancing steel wire rope bypasses the front end movable pulley (3) and is fixed on the rear end plate (14), and the sliding table (2) is driven to advance on the outer side slide way (11) through extension of the cylinder body (72); one end of the retreating steel wire rope (6) is fixed on the front end plate (13), one end of the retreating steel wire rope bypasses the rear end movable pulley (4) and is fixed on the sliding table (2), and the retreating steel wire rope retracts through the cylinder body (72) to drive the sliding table (2) to retreat.

2. The slide table moving mechanism according to claim 1, wherein: outer side sliding blocks are arranged on two sides of the bottom end of the sliding table (2), and are clamped on the outer side sliding rails (11); the front end movable pulley (3) is provided with a middle sliding block, and the middle sliding block is clamped on the middle slide way (12).

3. The slide table moving mechanism according to claim 1, wherein: the power oil cylinder (7) also comprises a steel pipe (73); the cylinder rod (71) is of a cavity structure, and the steel pipe (73) penetrates through the cylinder rod (71) to supply oil to a rodless cavity of the cylinder body (72); the cavity structure of the cylinder rod (71) supplies oil to a rod cavity of the cylinder body (72); two oil inlets are arranged at the end part of the cylinder rod (71).

4. The slide table moving mechanism according to claim 1, wherein: the driving mechanism further comprises a connecting rod, and the front end movable pulley (3) is fixedly connected with the cylinder body (72) through the connecting rod; the connecting rod includes extension pipe (8) and threaded rod (9), and extension pipe (8) and threaded rod (9) pass through threaded connection, the one end and cylinder body (72) fixed connection of extension pipe (8), the one end and front end movable pulley (3) fixed connection of threaded rod (9).

5. The slide table moving mechanism according to claim 4, wherein: the threads are trapezoidal threads.

6. The slide table moving mechanism according to claim 1, wherein: the novel cylinder is characterized by further comprising a limiting block (10), wherein the limiting block (10) is arranged on the cylinder body (72) and fixedly connected with the cylinder body (72), and the limiting block (10) is clamped in the middle slide way (12) and can slide back and forth along the middle slide way (12).

7. The utility model provides an undercut platform truck which characterized in that: the device comprises a travelling mechanism, a frame and a sliding table moving mechanism, wherein the frame is arranged on the travelling mechanism, the sliding table moving mechanism of any one of the claims 1-5 is further included, and the sliding table moving mechanism is fixedly arranged on the frame.