Hydraulic cylinder protection structure and drill jumbo

Abstract

The utility model provides a hydraulic cylinder protection structure and a drill jumbo, and belongs to the technical field of drill jumbo production. One end of each hydraulic cylinder is hinged to one side of the mounting plate, and the other end of each hydraulic cylinder is connected to the other end of the mounting column; the two bearing plates are respectively arranged at the top of the mounting plate and above the other end of the mounting column, and a placing table is arranged in the middle of the top surface of each bearing plate; one ends of the pressing plates are hinged to the top face of the bearing plate, the hinge axes of the pressing plates face the width direction of the bearing plate, and the two pressing plates are located on the two sides of the containing table respectively; the middle part of one end of the protective plate extends outwards to form a support plate and is pressed between the placing table and the pressing plate, and the other ends of the protective plate are mutually overlapped and are positioned above the hydraulic cylinder; and the locking mechanism is arranged on the bearing plate and used for fixing the pressing plate. The protection structure not only can effectively protect the hydraulic cylinder, but also is simple and convenient to disassemble and assemble.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of drill jumbo production, and particularly relates to a hydraulic cylinder protection structure and a drill jumbo. BACKGROUND

[0002] The drill jumbo is a kind of rock drilling equipment commonly used in tunnel and underground engineering construction, which is composed of a running mechanism, a drill boom seat, a drill boom and the like, and a hinged structure and a hydraulic cylinder are usually arranged on the drill boom to realize multi-degree-of-freedom movement of the drill boom, so as to improve the drilling accuracy.

[0003] When the rock drill is drilling, stones are splashed, and the piston rod of the hydraulic cylinder is precisely matched with the cylinder barrel, so that if the stones hit the piston rod and the cylinder barrel, the matching may be invalid, the stroke of the hydraulic cylinder is affected, and the service life of the hydraulic cylinder is shortened, and the general protection structure is complicated to disassemble and replace the protection piece. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above problems of the prior art, the application provides a hydraulic cylinder protection structure and a drill jumbo, which can effectively protect the hydraulic cylinder and is simple to disassemble and assemble.

[0005] In order to achieve the above purpose, the utility model adopts the following technology:

[0006] A hydraulic cylinder protection structure comprises:

[0007] A mounting column is hingedly connected to one side of a mounting plate;

[0008] Two hydraulic cylinders are hingedly connected to one side of the mounting plate and connected to the other end of the mounting column, and are used for controlling the rotation of the mounting plate;

[0009] Two bearing plates are arranged above the other end of the mounting column and the top of the mounting plate, and a placing table is arranged on the top surface of the bearing plate;

[0010] A pair of pressing plates are hingedly connected to the top surface of the bearing plate, and the hinged axes of the pressing plates are arranged in the width direction of the bearing plate, and the two pressing plates are arranged on both sides of the placing table;

[0011] A guard plate is arranged between the placing table and the pressing plate, and the other end of the guard plate is arranged above the hydraulic cylinder;

[0012] A locking mechanism is arranged on the bearing plate and used for fixing the pressing plate.

[0013] Further, the locking mechanism comprises a pair of mounting strips arranged on the bearing plate and located at the rear end of the placement table, and a guide groove is formed on the opposite surface of the mounting strips along the length direction of the bearing plate, the guide groove penetrates through the front and rear ends of the mounting strips, and a movable plate is arranged between the mounting strips, and the movable plate is slidably connected in the corresponding guide groove along the length direction of the mounting strips, and a matching groove is formed on the side of the pressing plate facing the mounting strips along the width direction of the bearing plate, and the matching groove is matched with the guide groove and used for inserting the movable plate.

[0014] The utility model has the advantages that:

[0015] Through the setting of the pressing plate and the placement table, and the cooperation of the locking mechanism, the operator only needs to operate the locking mechanism and contact the fixing of the pressing plate, so that the flexible supporting plate can be taken out from between the pressing plate and the placement table, thereby completing the disassembly of the protective plate, and the installation is conversely, which simplifies the disassembly and assembly mode of the protective plate and facilitates the replacement of the protective plate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the protective structure of the embodiment of the application.

[0017] Figure 2 It is Figure 1 It is an enlarged view of part A in the figure.

[0018] Figure 3 It is a structural schematic view of the bearing plate of the embodiment of the application.

[0019] Figure 4 It is a sectional view of the bearing plate of the embodiment of the application.

[0020] Reference signs: 1 - mounting column, 11 - door-shaped frame, 2 - mounting plate, 3 - hydraulic cylinder, 4 - bearing plate, 41 - placement table, 5 - pressing plate, 51 - matching groove, 52 - sharp cone, 6 - protective plate, 61 - flexible supporting plate, 7 - locking mechanism, 71 - mounting strip, 72 - guide groove, 73 - movable plate, 74 - vertical plate, 75 - spring, 8 - transmission block, 9 - connecting frame. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the embodiments of the utility model are described in detail below with reference to the drawings, but the embodiments described in the utility model are part of the embodiments of the utility model, not all the embodiments.

[0022] The embodiment of the application provides a hydraulic cylinder protection structure, a drill boom of a drill jumbo is generally in a multi-section frame beam structure, hinge structures and hydraulic cylinders are arranged between the frame beams, the embodiment only selects one section as an example, other parts are the same, as shown in the figure Figures 1-4 The protection device comprises a mounting column 1, a mounting plate 2, two hydraulic cylinders 3, a bearing plate 4, a pair of pressing plates 5, two guard plates 6, a locking mechanism 7 and the like.

[0023] The mounting column 1 is a section of the frame beam of the drill boom, one end of the mounting column 1 is hingedly connected to one end of a transmission block 8, the hinge axis is perpendicular to the length direction of the mounting column 1, the other end of the transmission block 8 is hingedly connected to one face of the mounting plate 2, and the hinge axis is perpendicular to the intersection axis of the mounting column 1 and the transmission block 8; the two hydraulic cylinders 3 are symmetrically arranged about the hinge axis of the mounting plate 2 and the transmission block 8, the bases of the two hydraulic cylinders 3 are connected to the other end of the mounting column 1, an included angle of 30-45 degrees is formed between the two hydraulic cylinders 3, the end portions of the piston rods of the hydraulic cylinders 3 are located above one end of the mounting column 1 and are hingedly connected to one end of a connecting frame 9, the hinge axis is parallel to the hinge axis of the transmission block 8 and the mounting column 1, the other end of the connecting frame 9 is hingedly connected to one face of the mounting plate 2, the hinge axis is parallel to the hinge axis of the transmission block 8 and the mounting plate 2, and the connecting frame 9 is located above the transmission block 8.

[0024] As shown in the figure Figure 1 , through the hinge arrangement among the hydraulic cylinder 3, the mounting plate 2 and the mounting column 1, and cooperating with the extension and contraction of the hydraulic cylinder 3, the horizontal swinging and the pitching rotation of the mounting plate 2 can be realized, when the two hydraulic cylinders 3 are differentially operated, the mounting plate 2 swings horizontally about the hinge axis of the transmission block 8 and the mounting plate 2, when the two hydraulic cylinders 3 are synchronously operated, the mounting plate 2 pitches about the transmission block 8 and the mounting column 1, and the other face of the mounting plate 2 is used for mounting the frame beam provided with a drill bit, so that multi-angle rock drilling operation can be realized.

[0025] As shown in the figure Figure 1 and Figure 2 , the two bearing plates 4 are respectively arranged above the top of the mounting plate 2 and the other end of the mounting column 1, the top face of the bearing plate 4 is provided with a placing table 41, one end of the two pressing plates 5 is hingedly connected to the top face of the bearing plate 4, the hinge axis is arranged towards the width direction of the bearing plate 4, and the two pressing plates 5 are respectively located on the two sides of the placing table 41.

[0026] As shown in the figure Figure 1 and Figure 2 , one end of the two guard plates 6 extends outward to form a flexible support plate 61, and is pressed between the placing table 41 and the pressing plate 5, the other end of the two guard plates 6 is overlapped with each other and is located above the hydraulic cylinder 3.

[0027] As shown in the figure Figure 1 and Figure 2 , the locking mechanism 7 is arranged on the bearing plate 4 and is used for fixing the pressing plate 5.

[0028] Correspondingly, as shown in Figure 1 , the length of the overlapping part of the two protective plates 6 and the width of the protective plate 6 should be adapted to the size of the hydraulic cylinder and its stroke, that is, when the mounting plate 2 is swung horizontally or rotated in pitch by the hydraulic cylinder 3, the load plate 4 on the mounting plate 2 moves accordingly, the two protective plates 6 move relatively, and the two sides of the protective plate 6 can still completely block the two sides of the two hydraulic cylinders 3, the other end of the two protective plates 6 is still in an overlapping state and does not separate, so as to ensure that the upper part of the two hydraulic cylinders 3 is not exposed.

[0029] When the protective plate 6 is disassembled, only the locking mechanism 7 needs to be operated to contact the fixing of the pressing plate 5, so that the flexible support plate 61 of the protective plate 6 can be taken out from between the pressing plate 5 and the placement table 41, thereby completing the disassembly of the protective plate 6, and vice versa when the protective plate 6 is installed. This simplifies the disassembly and assembly method of the protective plate 6 and facilitates replacement. The general installation method is to install through screws, which inevitably causes holes to be opened on the protective plate 6, and screws need to be twisted every time the protective plate 6 is disassembled and assembled, which is relatively cumbersome and not conducive to the quick replacement of the protective plate 6. At the same time, the other end of the two protective plates 6 overlaps each other, which can effectively avoid the movement interference between the hydraulic cylinder 3 and the mounting plate 2 on the premise of ensuring the protection effect, and has high practicability.

[0030] Specifically, as shown in Figures 1-4 , the locking mechanism 7 comprises a pair of mounting strips 71 arranged on the load plate 4 and located at the rear end of the placement table 41, and the mounting strips 71 are arranged towards the width direction of the load plate 4. A guide groove 72 is formed on the opposite side of the two mounting strips 71 along the length direction of the load plate 4, and the guide groove 72 penetrates the front and rear ends of the mounting strip 71. An activity plate 73 is arranged between the two mounting strips 71, and the two ends of the activity plate 73 are respectively slidably fitted into the corresponding guide groove 72 along the length direction of the mounting strip 71. A matching groove 51 is formed on the side of the pressing plate 5 facing the mounting strip 71 along the width direction of the load plate 4, and the matching groove 51 penetrates the other end of the pressing plate 5. The matching groove 51 is adapted to the guide groove 72 and is used for inserting the activity plate 73.

[0031] In application, the flexible support plate 61 of the protective plate 6 is placed on the placement table 41, and the two pressing plates 5 are turned towards the placement table 41 and pressed on the flexible support plate 61. Due to the flexibility of the flexible support plate 61, the pressing plate 5 is continuously pressed until the flexible support plate 61 is pressed tightly. At this time, the matching groove 51 on the pressing plate 5 is in communication with the guide groove 72, and then the activity plate 73 is inserted into the matching groove 51, so as to fix the position of the pressing plate 5. Through the arrangement of the activity plate 73 and the cooperation of the matching groove 51 and the guide groove 72, the operator only needs to move the position of the activity plate 73 to realize the release and locking of the pressing plate 5, which further simplifies the disassembly and replacement of the protective plate 6.

[0032] Specifically, as shown in Figure 3 and Figure 4As shown, the movable plate 73 is vertically provided with a vertical plate 74 at the rear end, and the spring 75 is arranged between the movable plate 73 and the bearing plate 4, one end of the spring 75 is connected to the vertical plate 74, and the other end is connected to the rear end of the placement table 41. When replacing the guard plate 6, the movable plate 73 is pulled out of the matching groove 51, and the spring 75 is stretched. After placing the flexible support plate 61 of the new guard plate 6, the pressing plate 5 is rotated and pressed on the flexible support plate 61. When the matching groove 51 is communicated with the guide groove 72, the spring 75 is contracted, and the movable plate 73 is popped into the matching groove 51, so as to fix the pressing plate 5. Under the action of the spring 75, the movable plate 73 can better enter the matching groove 51, which simplifies the operation process. At the same time, the spring 75 makes the movable plate 73 always located in the matching groove 51 without external force, which ensures the reliability of the locking mechanism 7 for fixing the pressing plate 5.

[0033] Preferably, as shown in the drawings, Figures 1-4 As shown, the guard plate 6 and the flexible support plate 61 thereof can be made of rubber material, especially high wear-resistant nitrile rubber, which has good buffering and damping characteristics, can effectively resist the impact of gravel, and is wear-resistant.

[0034] Preferably, as shown in the drawings, Figures 2-4 As shown, the pressing plate 5 is provided with a plurality of sharp cones 52 on the side for pressing the flexible support plate 61. Correspondingly, the sharpness of the sharp cones 52 should be reasonably set, so that when the pressing plate 5 presses the flexible support plate 61, the sharp cones 52 are embedded in the surface of the flexible support plate 61 to improve the adhesion and effectively fix the flexible support plate 61, while avoiding the sharp cones 52 piercing the flexible support plate 61, which makes it difficult to pull out the flexible support plate 61.

[0035] Specifically, as shown in the drawings, Figure 1 As shown, the mounting column 1 is provided with two door-shaped frames 11 at the other end, the two door-shaped frames 11 are arranged along the length direction of the mounting column 1, the hydraulic cylinder 3 is located in the door-shaped frame 11, and the two ends of the bearing plate 4 located above the other end of the mounting column 1 are respectively arranged on the top of the corresponding door-shaped frame 11. The other bearing plate 4 is perpendicular to the mounting plate 2 and arranged on the top surface of the mounting plate 2.

[0036] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Obviously, those skilled in the art can make various modifications and changes to the present application without departing from the spirit and scope of the present application.

Claims

1. A hydraulic cylinder guard structure, characterized by, The utility model relates to a hydraulic cylinder protection structure, including: A mounting column (1) is arranged on one side of a mounting plate (2) at one end; Two hydraulic cylinders (3) are arranged on one side of the mounting plate (2) at one end, and the other end is connected to the other end of the mounting column (1), and is used for controlling the rotation of the mounting plate (2); Two bearing plates (4) are arranged above the top of the mounting plate (2) and the other end of the mounting column (1) respectively, and a placing table (41) is arranged on the top surface of the bearing plate (4); A pair of pressing plates (5) are arranged on the top surface of the bearing plate (4) at one end, and the hinge axis is arranged towards the width direction of the bearing plate (4), and the two pressing plates (5) are located on both sides of the placing table (41) respectively; A guard plate (6) is arranged, one end of which extends outward in the middle to form a support plate (61) and is pressed between the placing table (41) and the pressing plate (5), and the other end is overlapped and located above the hydraulic cylinder (3); A locking mechanism (7) is arranged on the bearing plate (4) and is used for fixing the pressing plate (5).

2. The hydraulic cylinder protection structure according to claim 1, wherein The locking mechanism (7) comprises a pair of mounting strips (71) arranged on the bearing plate (4) and located at the rear end of the placing table (41) and arranged towards the width direction of the bearing plate (4), a guide groove (72) is formed on the opposite side of the two mounting strips (71) along the length direction of the bearing plate (4), the guide groove (72) penetrates through the front and rear ends of the mounting strip (71), a movable plate (73) is arranged between the two mounting strips (71), the two ends of the movable plate (73) are respectively slidably fitted into the corresponding guide groove (72) along the length direction of the mounting strip (71), a matching groove (51) is formed on the side of the pressing plate (5) towards the mounting strip (71) along the width direction of the bearing plate (4), and the matching groove (51) is adapted with the guide groove (72) and used for inserting the movable plate (73).

3. A hydraulic cylinder guard structure according to claim 2, wherein A vertical plate (74) is vertically arranged at the rear end of the movable plate (73), a spring (75) is arranged between the movable plate (73) and the bearing plate (4), one end of the spring (75) is connected to the vertical plate (74), and the other end is connected to the rear end of the placing table (41).

4. The hydraulic cylinder guard structure of claim 1, wherein The material of the guard plate (6) and the support plate (61) thereof is rubber.

5. A hydraulic cylinder guard structure according to claim 4, wherein Sharp cones (52) are arranged on the side of the pressing plate (5) for pressing the support plate (61).

6. A hydraulic cylinder guard structure according to claim 1, wherein A door-shaped frame (11) is arranged at the other end of the mounting column (1), the hydraulic cylinder (3) is located in the door-shaped frame (11), and the top of the door-shaped frame (11) is used for mounting the corresponding bearing plate (4).

7. A drill jumbo comprising a drill boom, characterized in that The drill arm is provided with the hydraulic cylinder protection structure according to any one of claims 1-6.

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