WO2022068224A1

WO2022068224A1 - Deviation correction device for double-wheel slot milling machine and double-wheel slot milling machine

Info

Publication number: WO2022068224A1
Application number: PCT/CN2021/095394
Authority: WO
Inventors: 郑文; 王淑婧; 倪坤; 孙余
Original assignee: 江苏徐工工程机械研究院有限公司; 徐州徐工基础工程机械有限公司
Priority date: 2020-09-29
Filing date: 2021-05-24
Publication date: 2022-04-07
Also published as: DE112021003424T5; CN112049167A

Abstract

Provided by the present disclosure are a deviation correction device for a double-wheel slot milling machine and the double-wheel slot milling machine. The deviation correction device for the double-wheel slot milling machine comprises a push plate. The push plate comprises a bottom plate and a top plate located above the bottom plate. An avoidance slot that penetrates in the longitudinal direction is provided on the top plate. When the deviation correction device for the double-wheel slot milling machine of the present disclosure is in operation, rock wall protrusions on the slot wall will enter into the avoidance slot so as to prevent the push plate of the deviation correction device from squeezing the rock wall protrusions, thereby preventing the stability of deviation correction and the accuracy of slot formation from being influenced.

Description

Correction device for double-wheel slot milling machine and double-wheel slot milling machine

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based on the CN application number 202011057193.6 and the filing date is September 29, 2020, and claims its priority. The disclosure content of this CN application is hereby incorporated into this application as a whole.

technical field

The present disclosure relates to the field of construction machinery, in particular to a deviation correction device of a double-wheel slot milling machine and a double-wheel slot milling machine.

Background technique

The double-wheel slot milling machine is an underground diaphragm wall slotting equipment, and its maximum construction depth can reach more than 150m. In order to improve the slot-forming accuracy at large depths, the double-wheel slot milling machine is equipped with a deviation correction device, which can be adjusted due to stratum changes, etc. When the reason causes the milling tool holder to be tilted, the milling tool holder is corrected in real time.

SUMMARY OF THE INVENTION

In the related art known to the inventor, during hard rock milling, due to the rock breaking mechanism of the milling wheel, a rock bulge will be left in the middle of the rock wall, that is, a milling "blind zone". On the one hand, the protrusion will squeeze the push plate of the deviation correction device during deviation correction, resulting in the deformation of the push plate, which affects the deviation correction stability and slotting accuracy;

In view of this, the present disclosure provides a deviation rectifying device for a double-wheel slot milling machine and a double-wheel slot milling machine, so as to improve the deviation rectification stability and slot forming accuracy of the deviation rectification device.

A first aspect of the present disclosure provides a deviation correction device for a double-wheel slot milling machine, comprising:

The push plate includes a bottom plate and a top plate located above the bottom plate, and the top plate is provided with an escape groove that runs through in the longitudinal direction.

In some embodiments, the top plate includes two sub-top plates respectively located on both sides of the avoidance groove, and the gap between the two sub-top plates forms the avoidance groove.

In some embodiments, the escape groove penetrates the top plate in the thickness direction of the top plate.

In some embodiments, the deviation rectification device further includes a deviation rectification body located on the lower side of the push plate, the bottom plate is rotatably connected to the deviation rectification body, and the longitudinal upper end of the bottom plate is bent to one side of the deviation rectification body to cover the space between the bottom plate and the deviation rectification body .

In some embodiments, the escape slot includes a flared section at the longitudinally lower end.

In some embodiments, the escape slot includes a flared section at the longitudinally upper end.

In some embodiments, the push plate includes two sub-top plates respectively located on both sides of the escape groove, and the upper surface of the sub-top plates includes inclined sections located at longitudinal ends.

A second aspect of the present invention provides a double-wheel slot milling machine, comprising the above-mentioned deviation correction device provided in the first aspect of the present invention.

In some embodiments, the double-wheel slot milling machine further includes a milling tool holder and a milling wheel arranged at the bottom of the milling tool holder. The milling tool holder has a cubic structure and includes two first parallel to the axis of the milling wheel and opposite to each other. The side surfaces and the two second side surfaces which are perpendicular to and opposite to the axis of the milling wheel are provided with a deviation correcting device on the first side surfaces.

Based on the technical solution provided by the present disclosure, the deviation correction device includes a push plate, and a top plate of the push plate is provided with an escape groove penetrating in the longitudinal direction. When the deflection rectifying device of the present invention is in operation, the rock wall protrusions on the groove wall will enter the avoidance groove to avoid extrusion between the push plate of the deflection correcting device and the rock wall protrusions, thereby avoiding the impact on the deflection correcting stability and the groove forming accuracy. Influence.

Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings.

Description of drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments described in the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

FIG. 1 is a schematic front view of the structure of the double-wheel slot milling machine in operation of the embodiment of the present disclosure;

Fig. 2 is the side view structure schematic diagram of the double-wheel slot milling machine of the embodiment shown in Fig. 1;

Fig. 3 is the schematic diagram when the milling tool holder of the double-wheel slot milling machine of the embodiment shown in Fig. 1 is inclined;

FIG. 4 is a schematic top view enlarged structural diagram of the double-wheel slot milling machine of the embodiment shown in FIG. 1;

FIG. 5 is a schematic structural diagram of the first deviation correcting device on the milling tool holder according to the embodiment of the disclosure;

Fig. 6 is the front view structure schematic diagram of the first deviation correcting device in Fig. 5;

FIG. 7 is a schematic side view of the structure of the first deviation correction device in FIG. 5 .

Detailed ways

In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the embodiments of the present disclosure will be described in further detail below through the embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, but not to limit the present disclosure.

As shown in FIG. 1 and FIG. 2 , the double-wheel slot milling machine of this embodiment includes a milling tool holder 4 , a milling wheel 6 arranged at the bottom of the milling tool holder 4 , and a deviation correction device arranged on the side surface of the milling tool holder 4 . The double wheel slot milling machine is located in the slot wall 5 .

As shown in Figure 3, when the milling tool holder 4 is inclined in the groove wall, the push plates of the deflection correcting devices located at the lower left corner and the upper right corner are pushed out in the direction of the arrow under the action of the respective oil cylinders (the pushing out direction is perpendicular to the milling tool holder). side plate) until the push plate abuts against the groove wall, at which time the groove wall will have a reaction force on the push plate. As the oil cylinder and the push plate continue to be pushed out, the reaction force generated by the groove wall to the push plate of the deflection correcting device will cause the milling tool holder 4 to rotate counterclockwise until the milling tool holder 4 is in a vertical state.

The milling tool holder 4 of the double-wheel slot milling machine of the present embodiment has a cubic structure and includes four sides enclosed in the circumferential direction. The four side surfaces include two first side surfaces parallel to the axis of the milling wheel 6 and two second side surfaces perpendicular to the axis of the milling wheel 6 . A first deviation rectifying device 1 is arranged on the first side surface, and a second deviation rectifying device 2 is arranged on the second side surface. As shown in FIG. 4 , the first rock wall protrusion 51 is formed on the first groove wall parallel to the axis of the milling wheel 6 , and the second rock wall protrusion 52 is formed on the second groove wall perpendicular to the axis of the milling wheel 6 . superior. The two second deviation correction devices 2 located on the same side of the milling tool holder 4 are respectively located on both sides of the second rock wall protrusion 52. During operation, the second deviation correction device 2 and the second rock wall protrusion 52 are separated from each other. Therefore, the second rock wall protrusion 52 has no influence on the action of the second deflection correcting device 2 . However, the first rock wall protrusion 51 is located in the middle of the first deflection correcting device 1 , so the first rock wall protrusion 51 will adversely affect the deflection correction of the first deflection correcting device 1 .

In order to improve the above problems, as shown in FIG. 5 to FIG. 7 , the embodiment of the present invention proposes an improvement to the first deviation rectification device 1 , the first deviation rectification device 1 includes a push plate 12 , and the push plate 12 is provided with a pass through along the longitudinal direction X. Avoid slot 124 .

When the first deflection correcting device 1 of the embodiment of the present invention is in operation, as shown in FIG. 4 , the first rock wall protrusion 51 on the groove wall 5 will enter the avoidance groove 124 to avoid the push plate of the first deflection correcting device 1 . 12 is squeezed with the first rock wall protrusion 51 so as to avoid the influence on the deviation correction stability and the groove forming accuracy. In addition, the push plate 12 of this embodiment avoids the rock wall bulge, and also changes the contact between the push plate plane and the rock wall from point contact to double parallel line contact, thereby improving the deviation correction stability.

Specifically, in this embodiment, as shown in FIG. 6 , the push plate 12 includes a bottom plate 121 and a top plate located above the bottom plate 121 , and an escape groove 124 is provided on the top plate.

The bottom plate 121 and the top plate in this embodiment are provided separately, and the top plate being located above the bottom plate 121 means that the top plate in this embodiment is stacked above the bottom plate 121 in the thickness direction. Furthermore, the top plate of this embodiment is connected to the bottom plate 121 through the connecting means 123. The connecting device 123 is a detachable structure or a non-detachable structure.

However, in the embodiments not shown in other drawings, the bottom plate and the top plate are integrally formed to form a push plate, and at this time, there is no distinction between the bottom plate and the top plate in the thickness direction of the push plate. It is sufficient to open an escape groove directly on the upper side of the push plate in the thickness direction. For example, the push plate provided integrally can be manufactured by a method such as forging.

In some embodiments, the top plate includes two sub-top plates 122 respectively located on both sides of the escape groove 124 , and the space between the two sub-top plates 122 forms the escape groove 124 . Specifically, in this embodiment, as shown in FIG. 6 , the two sub-top plates 122 are provided independently. And the two sub-top plates 122 are respectively connected to the lateral sides of the bottom plate 121 through the connecting device 123 . At this time, the escape groove 124 directly penetrates the top plate in the thickness direction of the top plate.

In other embodiments, the top plate may also include three or more independently arranged sub-boards, as long as an escape groove can be constructed, and the number of sub-boards is not limited.

In embodiments not shown in other drawings, the two sub-top panels are integrally provided. At this time, the two sub-top plates are integrated and connected to each other. For example, make a slot directly in the middle of the top plate. In addition, the escape groove may penetrate in the thickness direction of the top plate, or may not penetrate in the thickness direction of the top plate. As long as the width and depth of the avoidance groove are greater than the width and height of the first rock wall bulge, the effect of avoidance can be achieved.

The avoidance groove 124 of the present embodiment is configured to accommodate the first rock wall protrusion 51 to achieve the effect of avoidance. Specifically in this embodiment, the width and depth of the avoidance groove 124 are greater than the height and width of the first rock wall protrusion 51 to achieve the effect of avoidance.

The side walls of the escape groove 124 in this embodiment are formed by the side surfaces of the sub-top plates 122 provided on both sides. In this embodiment, the side surface of the sub-top plate 122 is inclined with respect to the upper surface of the sub-top plate 122 . Specifically, an obtuse angle is formed between the side surface of the sub-top plate 122 and the upper surface of the sub-top plate 122 .

As shown in FIG. 6 , the escape groove 124 of this embodiment includes a flared section 1241 located at the lower end of the longitudinal direction. When the first deviation correcting device 1 is in operation, the first rock wall protrusion 51 enters the escape groove 124 from the flared section 1241, and the setting of the flared section 1241 is beneficial to ensure that the first rock wall protrusion 51 enters the groove smoothly and prevents the first rock wall protrusion 51 from entering the groove. A rock wall protrusion 51 is caught by the avoidance groove 124 .

The escape groove 124 in this embodiment further includes a flared section located at the longitudinal upper end. This arrangement makes the upper and lower sides of the deflection rectifying device of this embodiment symmetrical, and there is no need to distinguish between them during installation, thereby improving the efficiency.

As shown in FIG. 7 , the upper surface of the sub-top plate 122 of the present embodiment includes inclined sections 1221 located at the longitudinal ends. The provision of the inclined section 1221 can reduce the shear force on the sub-top plate 122 and the connecting device 123 during the milling process, and prevent the sub-top plate 122 and the connecting device 123 from being damaged.

Preferably, the flat section 1222 of the upper surface of the sub-top plate 122 is smoothly connected with the inclined section 1221 so that the inclined section 1221 forms a streamline shape.

The deviation rectification device of this embodiment further includes a deviation rectification body 11 disposed on the lower side of the push plate 12 . The bottom plate 121 is rotatably connected to the deflection rectifying body 11 . In this embodiment, the upper end of the bottom plate 121 is bent to the side of the deviation rectifying body 11 to cover the space between the bottom plate 121 and the deviation rectifying body 11 . In the working state, the bending can prevent the falling rocks from the upper part during the milling process from squeezing the internal structure of the deviation correction device. Specifically, in this embodiment, the deflection rectifying body 11 includes a base and a plurality of internal structures disposed between the bottom plate 121 and the base, such as a four-bar linkage mechanism, an oil cylinder, and the like. Therefore, in order to protect the multiple internal structures, the upper end of the bottom plate 121 in this embodiment is bent.

Preferably, the lower end of the bottom plate 121 in this embodiment is also provided with a bend. The second deviation correcting device 2 may have the same structure as the first deviation correcting device 1 of the above embodiment. However, since the second rock wall protrusion 52 does not affect the operation of the second deviation rectifying device 2, the push plate of the second deviation rectifying device 2 can also be set as a flat plate structure without grooves.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only.

In the description of the present disclosure, the terms "first" and "second" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

At the same time, the terms such as "up", "down", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and clarity, and are not used to limit this specification. The scope of the disclosure and the change or adjustment of the relative relationship should also be regarded as the scope of the disclosure, if there is no substantial change in the technical content.

The above-mentioned embodiments only represent several embodiments of the present disclosure, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the scope of the present disclosure. It should be noted that, for those skilled in the art, without departing from the concept of the present disclosure, several modifications and improvements can be made, which all belong to the protection scope of the present disclosure. Accordingly, the scope of protection of the present disclosure should be determined by the appended claims.

Claims

A deviation correction device for a double-wheel slot milling machine, comprising:

A push plate (12), the push plate (12) includes a bottom plate (121) and a top plate located above the bottom plate (121), the top plate is provided with an escape groove (124) passing through in the longitudinal direction (X).
The deviation correcting device for a double-wheel slot milling machine according to claim 1, wherein the top plate comprises two sub-top plates (122) located on both sides of the escape groove (124) respectively, and the two sub-top plates (122) ) forms the escape groove (124).
The deflection correcting device for a double-wheel slot milling machine according to claim 1 or 2, wherein, in the thickness direction of the top plate, the escape groove (124) penetrates the top plate.
The deviation rectification device of the double-wheel slot milling machine according to any one of claims 1 to 3, the deviation rectification device further comprises a deviation rectification main body (11) located on the lower side of the push plate (12), and the bottom plate (121) ) is rotatably connected to the rectifying body (11), and the longitudinal upper end of the bottom plate (121) is bent toward the side of the rectifying body (11) to cover the bottom plate (121) and the rectifying body ( 11) space between.
The deflection correcting device for a double-wheel slot milling machine according to any one of claims 1 to 4, wherein the escape groove (124) comprises a flared section (1241) located at the longitudinal lower end.
The deflection correcting device for a double-wheel slot milling machine according to claim 5, wherein the escape groove (124) comprises a flared section (1241) located at the longitudinal upper end.
The deflection correcting device for a double-wheel slot milling machine according to any one of claims 1 to 6, wherein the push plate (12) comprises two sub-top plates (122) respectively located on both sides of the escape groove (124) ), the upper surface of the sub-top plate (122) includes inclined sections (1221) at the longitudinal ends.
A double-wheel slot milling machine is characterized in that it comprises the deviation correcting device of the double-wheel slot milling machine according to any one of claims 1 to 7.
The double-wheel slot milling machine according to claim 8, further comprising a milling tool holder (4) and a milling wheel (6) arranged at the bottom of the milling tool holder (4), the milling tool holder (4) being a square It has a body structure and includes two first side surfaces that are parallel to and opposite to the axis of the milling wheel (6) and two second side surfaces that are perpendicular and opposite to the axis of the milling wheel (6). The deviation correction device is provided on the side.